a49c6c6a65
1071 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Tom Tromey
|
33eca68072 |
Use field_string in more places
This replaces uses of field_fmt with a "%s" format string to use field_string instead. Also, one use of "%9lx" is replaced with a call to phex_nz; the '9' is dropped as it is implicit in the field width. 2019-07-15 Tom Tromey <tromey@adacore.com> * mi/mi-main.c (list_available_thread_groups): Use field_string. * mi/mi-interp.c (mi_memory_changed): Use field_string. * target.c (flash_erase_command): Use field_string. * infrun.c (print_signal_received_reason): Use field_string. * i386-tdep.c (i386_mpx_print_bounds): Use field_string. * breakpoint.c (maybe_print_thread_hit_breakpoint): Use field_string. * ada-tasks.c (print_ada_task_info): Use field_string. |
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Tom Tromey
|
268a13a5a3 |
Rename common to gdbsupport
This is the next patch in the ongoing series to move gdbsever to the top level. This patch just renames the "common" directory. The idea is to do this move in two parts: first rename the directory (this patch), then move the directory to the top. This approach makes the patches a bit more tractable. I chose the name "gdbsupport" for the directory. However, as this patch was largely written by sed, we could pick a new name without too much difficulty. Tested by the buildbot. gdb/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * contrib/ari/gdb_ari.sh: Change common to gdbsupport. * configure: Rebuild. * configure.ac: Change common to gdbsupport. * gdbsupport: Rename from common. * acinclude.m4: Change common to gdbsupport. * Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES) (HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to gdbsupport. * aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c, amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c, amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c, amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c, amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c, arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c, arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c, arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c, arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c, auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h, btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c, charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c, cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c, coff-pe-read.c, command.h, compile/compile-c-support.c, compile/compile-c.h, compile/compile-cplus-symbols.c, compile/compile-cplus-types.c, compile/compile-cplus.h, compile/compile-loc2c.c, compile/compile.c, completer.c, completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c, cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c, darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c, disasm.h, dtrace-probe.c, dwarf-index-cache.c, dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c, dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c, event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c, features/aarch64-core.c, features/aarch64-fpu.c, features/aarch64-pauth.c, features/aarch64-sve.c, features/i386/32bit-avx.c, features/i386/32bit-avx512.c, features/i386/32bit-core.c, features/i386/32bit-linux.c, features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c, features/i386/32bit-segments.c, features/i386/32bit-sse.c, features/i386/64bit-avx.c, features/i386/64bit-avx512.c, features/i386/64bit-core.c, features/i386/64bit-linux.c, features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c, features/i386/64bit-segments.c, features/i386/64bit-sse.c, features/i386/x32-core.c, features/riscv/32bit-cpu.c, features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c, features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c, features/riscv/64bit-fpu.c, features/tic6x-c6xp.c, features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h, findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h, gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c, gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c, go32-nat.c, guile/guile.c, guile/scm-ports.c, guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c, i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c, i386-linux-tdep.c, i386-tdep.c, i387-tdep.c, ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c, inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h, inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h, inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c, linux-tdep.c, linux-thread-db.c, location.c, machoread.c, macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h, mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h, minsyms.c, mips-linux-tdep.c, namespace.h, nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h, nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c, nat/amd64-linux-siginfo.c, nat/fork-inferior.c, nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c, nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c, nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h, nat/linux-waitpid.c, nat/mips-linux-watch.c, nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c, nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c, nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h, obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c, parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c, procfs.c, producer.c, progspace.h, psymtab.h, python/py-framefilter.c, python/py-inferior.c, python/py-ref.h, python/py-type.c, python/python.c, record-btrace.c, record-full.c, record.c, record.h, regcache-dump.c, regcache.c, regcache.h, remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c, riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c, selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c, ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c, source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c, stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h, symtab.c, symtab.h, target-descriptions.c, target-descriptions.h, target-memory.c, target.c, target.h, target/waitstatus.c, target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c, top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c, tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h, unittests/array-view-selftests.c, unittests/child-path-selftests.c, unittests/cli-utils-selftests.c, unittests/common-utils-selftests.c, unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c, unittests/format_pieces-selftests.c, unittests/function-view-selftests.c, unittests/lookup_name_info-selftests.c, unittests/memory-map-selftests.c, unittests/memrange-selftests.c, unittests/mkdir-recursive-selftests.c, unittests/observable-selftests.c, unittests/offset-type-selftests.c, unittests/optional-selftests.c, unittests/parse-connection-spec-selftests.c, unittests/ptid-selftests.c, unittests/rsp-low-selftests.c, unittests/scoped_fd-selftests.c, unittests/scoped_mmap-selftests.c, unittests/scoped_restore-selftests.c, unittests/string_view-selftests.c, unittests/style-selftests.c, unittests/tracepoint-selftests.c, unittests/unpack-selftests.c, unittests/utils-selftests.c, unittests/xml-utils-selftests.c, utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c, value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c, xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c, xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport. gdb/gdbserver/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * configure: Rebuild. * configure.ac: Change common to gdbsupport. * acinclude.m4: Change common to gdbsupport. * Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS) (version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change common to gdbsupport. * ax.c, event-loop.c, fork-child.c, gdb_proc_service.h, gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c, inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c, linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c, linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c, linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h, nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c, server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h, thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change common to gdbsupport. |
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|
Tom Tromey
|
4ca51187d2 |
Constify target_ops::follow_exec
I noticed that target_ops::follow_exec took a "char *" parameter, where "const char *" would be more correct. This patch changes this (and related functions) to be constified. Tested by rebuilding. gdb/ChangeLog 2019-05-22 Tom Tromey <tromey@adacore.com> * target.c (target_follow_exec): Constify parameter. * target-delegates.c: Rebuild. * remote.c (remote_target::follow_exec): Constify parameter. * infrun.c (follow_exec): Constify parameter. * target.h (struct target_ops) <follow_exec>: Constify parameter. (target_follow_exec): Likewise. |
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Tom de Vries
|
b73715df01 |
[gdb] Handle vfork in thread with follow-fork-mode child
When debugging any of the testcases added by this commit, which do a vfork in a thread with "set follow-fork-mode child" + "set detach-on-fork on", we run into this assertion: ... src/gdb/nat/x86-linux-dregs.c:146: internal-error: \ void x86_linux_update_debug_registers(lwp_info*): \ Assertion `lwp_is_stopped (lwp)' failed. ... The assert is caused by the following: the vfork-child exit or exec event is handled by handle_vfork_child_exec_or_exit, which calls target_detach to detach from the vfork parent. During target_detach we call linux_nat_target::detach, which: #1 - stops all the threads #2 - waits for all the threads to be stopped #3 - detaches all the threads However, during the second step we run into this code in stop_wait_callback: ... /* If this is a vfork parent, bail out, it is not going to report any SIGSTOP until the vfork is done with. */ if (inf->vfork_child != NULL) return 0; ... and we don't wait for the threads to be stopped, which results in this assert in x86_linux_update_debug_registers triggering during the third step: ... gdb_assert (lwp_is_stopped (lwp)); ... The fix is to reset the vfork parent's vfork_child field before calling target_detach in handle_vfork_child_exec_or_exit. There's already similar code for the other paths handled by handle_vfork_child_exec_or_exit, so this commit refactors the code a bit so that all paths share the same code. The new tests cover both a vfork child exiting, and a vfork child execing, since both cases would trigger the assertion. The new testcases also exercise following the vfork children with "set detach-on-fork off", since it doesn't seem to be tested anywhere. Tested on x86_64-linux, using native and native-gdbserver. gdb/ChangeLog: 2019-04-18 Tom de Vries <tdevries@suse.de> Pedro Alves <palves@redhat.com> PR gdb/24454 * infrun.c (handle_vfork_child_exec_or_exit): Reset vfork parent's vfork_child field before calling target_detach. gdb/testsuite/ChangeLog: 2019-04-18 Tom de Vries <tdevries@suse.de> Pedro Alves <palves@redhat.com> PR gdb/24454 * gdb.threads/vfork-follow-child-exec.c: New file. * gdb.threads/vfork-follow-child-exec.exp: New file. * gdb.threads/vfork-follow-child-exit.c: New file. * gdb.threads/vfork-follow-child-exit.exp: New file. |
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Tom Tromey
|
eedc3f4f0a |
Replace throw_exception with throw in some cases
This replaces throw_exception with "throw;" when possible. This was
written by script. The rule that is followed is that uses of the
form:
catch (... &name)
{
...
throw_exception (name);
}
... can be rewritten. This should always be safe, because exceptions
are caught by const reference, and therefore can't be modified in the
body of the catch.
gdb/ChangeLog
2019-04-08 Tom Tromey <tom@tromey.com>
* valops.c (value_rtti_indirect_type): Replace throw_exception
with throw.
* tracefile-tfile.c (tfile_target_open): Replace throw_exception
with throw.
* thread.c (thr_try_catch_cmd): Replace throw_exception with
throw.
* target.c (target_translate_tls_address): Replace throw_exception
with throw.
* stack.c (frame_apply_command_count): Replace throw_exception
with throw.
* solib-spu.c (append_ocl_sos): Replace throw_exception with
throw.
* s390-tdep.c (s390_frame_unwind_cache): Replace throw_exception
with throw.
* rs6000-tdep.c (rs6000_frame_cache)
(rs6000_epilogue_frame_cache): Replace throw_exception with throw.
* remote.c: Replace throw_exception with throw.
* record-full.c (record_full_message, record_full_wait_1)
(record_full_restore): Replace throw_exception with throw.
* record-btrace.c:
(get_thread_current_frame_id, record_btrace_start_replaying)
(cmd_record_btrace_bts_start, cmd_record_btrace_pt_start)
(cmd_record_btrace_start): Replace throw_exception with throw.
* parse.c (parse_exp_in_context_1): Replace throw_exception with
throw.
* linux-nat.c (detach_one_lwp, linux_resume_one_lwp)
(resume_stopped_resumed_lwps): Replace throw_exception with throw.
* linespec.c:
(find_linespec_symbols): Replace throw_exception with throw.
* infrun.c (displaced_step_prepare, resume): Replace
throw_exception with throw.
* infcmd.c (post_create_inferior): Replace throw_exception with
throw.
* inf-loop.c (inferior_event_handler): Replace throw_exception
with throw.
* i386-tdep.c (i386_frame_cache, i386_epilogue_frame_cache)
(i386_sigtramp_frame_cache): Replace throw_exception with throw.
* frame.c (frame_unwind_pc, get_prev_frame_if_no_cycle)
(get_prev_frame_always, get_frame_pc_if_available)
(get_frame_address_in_block_if_available, get_frame_language):
Replace throw_exception with throw.
* frame-unwind.c (frame_unwind_try_unwinder): Replace
throw_exception with throw.
* eval.c (fetch_subexp_value, evaluate_var_value)
(evaluate_funcall, evaluate_subexp_standard): Replace
throw_exception with throw.
* dwarf2loc.c (call_site_find_chain)
(dwarf2_evaluate_loc_desc_full, dwarf2_locexpr_baton_eval):
Replace throw_exception with throw.
* dwarf2-frame.c (dwarf2_frame_cache): Replace throw_exception
with throw.
* darwin-nat.c (darwin_attach_pid): Replace throw_exception with
throw.
* cp-abi.c (baseclass_offset): Replace throw_exception with throw.
* completer.c (complete_line_internal): Replace throw_exception
with throw.
* compile/compile-object-run.c (compile_object_run): Replace
throw_exception with throw.
* cli/cli-script.c (process_next_line): Replace throw_exception
with throw.
* btrace.c (btrace_compute_ftrace_pt, btrace_compute_ftrace)
(btrace_enable, btrace_maint_update_pt_packets): Replace
throw_exception with throw.
* breakpoint.c (create_breakpoint, save_breakpoints): Replace
throw_exception with throw.
* break-catch-throw.c (re_set_exception_catchpoint): Replace
throw_exception with throw.
* amd64-tdep.c (amd64_frame_cache, amd64_sigtramp_frame_cache)
(amd64_epilogue_frame_cache): Replace throw_exception with throw.
* aarch64-tdep.c (aarch64_make_prologue_cache)
(aarch64_make_stub_cache): Replace throw_exception with throw.
gdb/gdbserver/ChangeLog
2019-04-08 Tom Tromey <tom@tromey.com>
* linux-low.c (linux_detach_one_lwp): Replace throw_exception with
throw.
(linux_resume_one_lwp): Likewise.
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Tom Tromey
|
230d2906b9 |
Rename gdb exception types
This renames the gdb exception types. The old types were only needed due to the macros in common-exception.h that are now gone. The intermediate layer of gdb_exception_RETURN_MASK_ALL did not seem needed, so this patch removes it entirely. gdb/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * common/common-exceptions.h (gdb_exception_RETURN_MASK_ALL): Remove. (gdb_exception_error): Rename from gdb_exception_RETURN_MASK_ERROR. (gdb_exception_quit): Rename from gdb_exception_RETURN_MASK_QUIT. (gdb_quit_bad_alloc): Update. * aarch64-tdep.c: Update. * ada-lang.c: Update. * ada-typeprint.c: Update. * ada-valprint.c: Update. * amd64-tdep.c: Update. * arch-utils.c: Update. * break-catch-throw.c: Update. * breakpoint.c: Update. * btrace.c: Update. * c-varobj.c: Update. * cli/cli-cmds.c: Update. * cli/cli-interp.c: Update. * cli/cli-script.c: Update. * common/common-exceptions.c: Update. * common/new-op.c: Update. * common/selftest.c: Update. * compile/compile-c-symbols.c: Update. * compile/compile-cplus-symbols.c: Update. * compile/compile-object-load.c: Update. * compile/compile-object-run.c: Update. * completer.c: Update. * corelow.c: Update. * cp-abi.c: Update. * cp-support.c: Update. * cp-valprint.c: Update. * darwin-nat.c: Update. * disasm-selftests.c: Update. * dtrace-probe.c: Update. * dwarf-index-cache.c: Update. * dwarf-index-write.c: Update. * dwarf2-frame-tailcall.c: Update. * dwarf2-frame.c: Update. * dwarf2loc.c: Update. * dwarf2read.c: Update. * eval.c: Update. * event-loop.c: Update. * event-top.c: Update. * exec.c: Update. * f-valprint.c: Update. * fbsd-tdep.c: Update. * frame-unwind.c: Update. * frame.c: Update. * gdbtypes.c: Update. * gnu-v3-abi.c: Update. * guile/guile-internal.h: Update. * guile/scm-block.c: Update. * guile/scm-breakpoint.c: Update. * guile/scm-cmd.c: Update. * guile/scm-disasm.c: Update. * guile/scm-frame.c: Update. * guile/scm-lazy-string.c: Update. * guile/scm-math.c: Update. * guile/scm-param.c: Update. * guile/scm-ports.c: Update. * guile/scm-pretty-print.c: Update. * guile/scm-symbol.c: Update. * guile/scm-symtab.c: Update. * guile/scm-type.c: Update. * guile/scm-value.c: Update. * i386-linux-tdep.c: Update. * i386-tdep.c: Update. * inf-loop.c: Update. * infcall.c: Update. * infcmd.c: Update. * infrun.c: Update. * jit.c: Update. * language.c: Update. * linespec.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * main.c: Update. * mi/mi-cmd-break.c: Update. * mi/mi-cmd-stack.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * objc-lang.c: Update. * p-valprint.c: Update. * parse.c: Update. * ppc-linux-tdep.c: Update. * printcmd.c: Update. * python/py-arch.c: Update. * python/py-breakpoint.c: Update. * python/py-cmd.c: Update. * python/py-finishbreakpoint.c: Update. * python/py-frame.c: Update. * python/py-framefilter.c: Update. * python/py-gdb-readline.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * python/py-lazy-string.c: Update. * python/py-linetable.c: Update. * python/py-objfile.c: Update. * python/py-param.c: Update. * python/py-prettyprint.c: Update. * python/py-progspace.c: Update. * python/py-record-btrace.c: Update. * python/py-record.c: Update. * python/py-symbol.c: Update. * python/py-type.c: Update. * python/py-unwind.c: Update. * python/py-utils.c: Update. * python/py-value.c: Update. * python/python.c: Update. * record-btrace.c: Update. * record-full.c: Update. * remote-fileio.c: Update. * remote.c: Update. * riscv-tdep.c: Update. * rs6000-aix-tdep.c: Update. * rs6000-tdep.c: Update. * rust-exp.y: Update. * rust-lang.c: Update. * s390-tdep.c: Update. * selftest-arch.c: Update. * solib-dsbt.c: Update. * solib-frv.c: Update. * solib-spu.c: Update. * solib-svr4.c: Update. * solib.c: Update. * sparc64-linux-tdep.c: Update. * stack.c: Update. * symfile-mem.c: Update. * symmisc.c: Update. * target.c: Update. * thread.c: Update. * top.c: Update. * tracefile-tfile.c: Update. * tui/tui.c: Update. * typeprint.c: Update. * unittests/cli-utils-selftests.c: Update. * unittests/parse-connection-spec-selftests.c: Update. * valops.c: Update. * valprint.c: Update. * value.c: Update. * varobj.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * xml-support.c: Update. gdb/gdbserver/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * gdbreplay.c: Update. * linux-low.c: Update. * server.c: Update. |
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Tom Tromey
|
a70b814420 |
Rewrite TRY/CATCH
This rewrites gdb's TRY/CATCH to plain C++ try/catch. The patch was largely written by script, though one change (to a comment in common-exceptions.h) was reverted by hand. gdb/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * xml-support.c: Use C++ exception handling. * x86-linux-nat.c: Use C++ exception handling. * windows-nat.c: Use C++ exception handling. * varobj.c: Use C++ exception handling. * value.c: Use C++ exception handling. * valprint.c: Use C++ exception handling. * valops.c: Use C++ exception handling. * unittests/parse-connection-spec-selftests.c: Use C++ exception handling. * unittests/cli-utils-selftests.c: Use C++ exception handling. * typeprint.c: Use C++ exception handling. * tui/tui.c: Use C++ exception handling. * tracefile-tfile.c: Use C++ exception handling. * top.c: Use C++ exception handling. * thread.c: Use C++ exception handling. * target.c: Use C++ exception handling. * symmisc.c: Use C++ exception handling. * symfile-mem.c: Use C++ exception handling. * stack.c: Use C++ exception handling. * sparc64-linux-tdep.c: Use C++ exception handling. * solib.c: Use C++ exception handling. * solib-svr4.c: Use C++ exception handling. * solib-spu.c: Use C++ exception handling. * solib-frv.c: Use C++ exception handling. * solib-dsbt.c: Use C++ exception handling. * selftest-arch.c: Use C++ exception handling. * s390-tdep.c: Use C++ exception handling. * rust-lang.c: Use C++ exception handling. * rust-exp.y: Use C++ exception handling. * rs6000-tdep.c: Use C++ exception handling. * rs6000-aix-tdep.c: Use C++ exception handling. * riscv-tdep.c: Use C++ exception handling. * remote.c: Use C++ exception handling. * remote-fileio.c: Use C++ exception handling. * record-full.c: Use C++ exception handling. * record-btrace.c: Use C++ exception handling. * python/python.c: Use C++ exception handling. * python/py-value.c: Use C++ exception handling. * python/py-utils.c: Use C++ exception handling. * python/py-unwind.c: Use C++ exception handling. * python/py-type.c: Use C++ exception handling. * python/py-symbol.c: Use C++ exception handling. * python/py-record.c: Use C++ exception handling. * python/py-record-btrace.c: Use C++ exception handling. * python/py-progspace.c: Use C++ exception handling. * python/py-prettyprint.c: Use C++ exception handling. * python/py-param.c: Use C++ exception handling. * python/py-objfile.c: Use C++ exception handling. * python/py-linetable.c: Use C++ exception handling. * python/py-lazy-string.c: Use C++ exception handling. * python/py-infthread.c: Use C++ exception handling. * python/py-inferior.c: Use C++ exception handling. * python/py-gdb-readline.c: Use C++ exception handling. * python/py-framefilter.c: Use C++ exception handling. * python/py-frame.c: Use C++ exception handling. * python/py-finishbreakpoint.c: Use C++ exception handling. * python/py-cmd.c: Use C++ exception handling. * python/py-breakpoint.c: Use C++ exception handling. * python/py-arch.c: Use C++ exception handling. * printcmd.c: Use C++ exception handling. * ppc-linux-tdep.c: Use C++ exception handling. * parse.c: Use C++ exception handling. * p-valprint.c: Use C++ exception handling. * objc-lang.c: Use C++ exception handling. * mi/mi-main.c: Use C++ exception handling. * mi/mi-interp.c: Use C++ exception handling. * mi/mi-cmd-stack.c: Use C++ exception handling. * mi/mi-cmd-break.c: Use C++ exception handling. * main.c: Use C++ exception handling. * linux-thread-db.c: Use C++ exception handling. * linux-tdep.c: Use C++ exception handling. * linux-nat.c: Use C++ exception handling. * linux-fork.c: Use C++ exception handling. * linespec.c: Use C++ exception handling. * language.c: Use C++ exception handling. * jit.c: Use C++ exception handling. * infrun.c: Use C++ exception handling. * infcmd.c: Use C++ exception handling. * infcall.c: Use C++ exception handling. * inf-loop.c: Use C++ exception handling. * i386-tdep.c: Use C++ exception handling. * i386-linux-tdep.c: Use C++ exception handling. * guile/scm-value.c: Use C++ exception handling. * guile/scm-type.c: Use C++ exception handling. * guile/scm-symtab.c: Use C++ exception handling. * guile/scm-symbol.c: Use C++ exception handling. * guile/scm-pretty-print.c: Use C++ exception handling. * guile/scm-ports.c: Use C++ exception handling. * guile/scm-param.c: Use C++ exception handling. * guile/scm-math.c: Use C++ exception handling. * guile/scm-lazy-string.c: Use C++ exception handling. * guile/scm-frame.c: Use C++ exception handling. * guile/scm-disasm.c: Use C++ exception handling. * guile/scm-cmd.c: Use C++ exception handling. * guile/scm-breakpoint.c: Use C++ exception handling. * guile/scm-block.c: Use C++ exception handling. * guile/guile-internal.h: Use C++ exception handling. * gnu-v3-abi.c: Use C++ exception handling. * gdbtypes.c: Use C++ exception handling. * frame.c: Use C++ exception handling. * frame-unwind.c: Use C++ exception handling. * fbsd-tdep.c: Use C++ exception handling. * f-valprint.c: Use C++ exception handling. * exec.c: Use C++ exception handling. * event-top.c: Use C++ exception handling. * event-loop.c: Use C++ exception handling. * eval.c: Use C++ exception handling. * dwarf2read.c: Use C++ exception handling. * dwarf2loc.c: Use C++ exception handling. * dwarf2-frame.c: Use C++ exception handling. * dwarf2-frame-tailcall.c: Use C++ exception handling. * dwarf-index-write.c: Use C++ exception handling. * dwarf-index-cache.c: Use C++ exception handling. * dtrace-probe.c: Use C++ exception handling. * disasm-selftests.c: Use C++ exception handling. * darwin-nat.c: Use C++ exception handling. * cp-valprint.c: Use C++ exception handling. * cp-support.c: Use C++ exception handling. * cp-abi.c: Use C++ exception handling. * corelow.c: Use C++ exception handling. * completer.c: Use C++ exception handling. * compile/compile-object-run.c: Use C++ exception handling. * compile/compile-object-load.c: Use C++ exception handling. * compile/compile-cplus-symbols.c: Use C++ exception handling. * compile/compile-c-symbols.c: Use C++ exception handling. * common/selftest.c: Use C++ exception handling. * common/new-op.c: Use C++ exception handling. * cli/cli-script.c: Use C++ exception handling. * cli/cli-interp.c: Use C++ exception handling. * cli/cli-cmds.c: Use C++ exception handling. * c-varobj.c: Use C++ exception handling. * btrace.c: Use C++ exception handling. * breakpoint.c: Use C++ exception handling. * break-catch-throw.c: Use C++ exception handling. * arch-utils.c: Use C++ exception handling. * amd64-tdep.c: Use C++ exception handling. * ada-valprint.c: Use C++ exception handling. * ada-typeprint.c: Use C++ exception handling. * ada-lang.c: Use C++ exception handling. * aarch64-tdep.c: Use C++ exception handling. gdb/gdbserver/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * server.c: Use C++ exception handling. * linux-low.c: Use C++ exception handling. * gdbreplay.c: Use C++ exception handling. |
||
|
Tom Tromey
|
3d6e9d2336 |
Make exceptions use std::string and be self-managing
This changes the exception's "message" member to be a shared_ptr wrapping a std::string. This allows removing the stack of exception messages, because now exceptions will self-destruct when needed. This also adds a noexcept copy constructor and operator= to gdb_exception, plus a "what" method. gdb/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * xml-support.c (gdb_xml_parser::parse): Update. * x86-linux-nat.c (x86_linux_nat_target::enable_btrace): Update. * value.c (show_convenience): Update. * unittests/cli-utils-selftests.c (test_number_or_range_parser) (test_parse_flags_qcs): Update. * thread.c (thr_try_catch_cmd): Update. * target.c (target_translate_tls_address): Update. * stack.c (print_frame_arg, read_frame_local, read_frame_arg) (info_frame_command_core, frame_apply_command_count): Update. * rust-exp.y (rust_lex_exception_test): Update. * riscv-tdep.c (riscv_print_one_register_info): Update. * remote.c (remote_target::enable_btrace): Update. * record-btrace.c (record_btrace_enable_warn): Update. * python/py-utils.c (gdbpy_convert_exception): Update. * printcmd.c (do_one_display, print_variable_and_value): Update. * mi/mi-main.c (mi_print_exception): Update. * mi/mi-interp.c (mi_cmd_interpreter_exec): Use SCOPE_EXIT. * mi/mi-cmd-stack.c (list_arg_or_local): Update. * linux-nat.c (linux_nat_target::attach): Update. * linux-fork.c (class scoped_switch_fork_info): Update. * infrun.c (displaced_step_prepare): Update. * infcall.c (call_function_by_hand_dummy): Update. * guile/scm-exception.c (gdbscm_scm_from_gdb_exception): Update. * gnu-v3-abi.c (print_one_vtable): Update. * frame.c (get_prev_frame_always): Update. * f-valprint.c (info_common_command_for_block): Update. * exec.c (try_open_exec_file): Update. * exceptions.c (print_exception, exception_print) (exception_fprintf, exception_print_same): Update. * dwarf2-frame.c (dwarf2_build_frame_info): Update. * dwarf-index-cache.c (index_cache::store) (index_cache::lookup_gdb_index): Update. * darwin-nat.c (maybe_cache_shell): Update. * cp-valprint.c (cp_print_value_fields): Update. * compile/compile-cplus-symbols.c (gcc_cplus_convert_symbol) (gcc_cplus_symbol_address): Update. * compile/compile-c-symbols.c (gcc_convert_symbol) (gcc_symbol_address, generate_c_for_for_one_variable): Update. * common/selftest.c: Update. * common/common-exceptions.h (struct gdb_exception) <message>: Now a std::string. (exception_try_scope_entry, exception_try_scope_exit): Don't declare. (struct exception_try_scope): Remove. (TRY): Don't use exception_try_scope. (struct gdb_exception): Add constructor, operator=. <what>: New method. (struct gdb_exception_RETURN_MASK_ALL) (struct gdb_exception_RETURN_MASK_ERROR) (struct gdb_exception_RETURN_MASK_QUIT): Add constructor. (struct gdb_quit_bad_alloc): Update. * common/common-exceptions.c (exception_none): Change initializer. (struct catcher) <state, exception>: Initialize inline. <prev>: Remove member. (current_catcher): Remove. (catchers): New global. (exceptions_state_mc_init): Simplify. (catcher_pop): Remove. (exceptions_state_mc, exceptions_state_mc_catch): Update. (try_scope_depth, exception_try_scope_entry) (exception_try_scope_exit): Remove. (throw_exception_sjlj): Update. (exception_messages, exception_messages_size): Remove. (throw_it): Simplify. (gdb_exception_sliced_copy): Remove. (throw_exception_cxx): Update. * cli/cli-script.c (script_from_file): Update. * breakpoint.c (insert_bp_location, update_breakpoint_locations): Update. * ada-valprint.c (ada_val_print): Update. * ada-lang.c (ada_to_fixed_type_1, ada_exception_name_addr) (create_excep_cond_exprs): Update. gdb/gdbserver/ChangeLog 2019-04-08 Tom Tromey <tom@tromey.com> * server.c (handle_btrace_general_set, handle_qxfer_btrace) (handle_qxfer_btrace_conf, detach_or_kill_for_exit_cleanup) (captured_main, main): Update. * gdbreplay.c (main): Update. |
||
Philippe Waroquiers
|
c29705b71a |
Fix internal error and improve 'set debug infrun 1'/target wait kind trace
The test gdb.threads/watchthreads-reorder.exp verifies that the
'set debug infrun 1' debug output does not crash GDB.
Under high load, the test can still cause a GDB internal error (see details
below).
This patch fixes this crash, and improves/factorises some wait kind traces.
Tested on debian/amd64 + run one test with 'set debug infrun 1'.
Changes compared to the first version:
* Handles the suggestions of Kevin to trace the relevant elements
of the wait status (this is done by calling target_waitstatus_to_string).
* Some other changes to factorise wait status tracing.
Note that using target_waitstatus_to_string instead of the 'locally printed'
status kind strings means that debug trace that was using strings such as:
"EXITED" or "TARGET_WAITKIND_EXITED"
will now use what is printed by target_waitstatus_to_string e.g.
"exited".
gdb/ChangeLog
2019-04-01 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* infrun.c (stop_all_threads): If debug_infrun, always
trace the wait status after wait_one, using
target_waitstatus_to_string and target_pid_to_str.
(handle_inferior_event): Replace various trace of
wait status kind by a single trace.
* gdb/gnu-nat.c (gnu_nat_target::wait): Replace local
wait status kind image by target_waitstatus_to_string.
* target/waitstatus.c (target_waitstatus_to_string): Fix
obsolete comment.
(top-gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007f3d54a0642a in __GI_abort () at abort.c:89
#2 0x0000555c24c60e66 in dump_core () at ../../fixleaks/gdb/utils.c:201
#3 0x0000555c24c63d49 in internal_vproblem(internal_problem *, const char *, int, const char *, typedef __va_list_tag __va_list_tag *) (problem=problem@entry=0x555c25338d40 <internal_error_problem>, file=<optimized out>, line=287,
fmt=<optimized out>, ap=<optimized out>) at ../../fixleaks/gdb/utils.c:411
#4 0x0000555c24c63eab in internal_verror (file=<optimized out>, line=<optimized out>, fmt=<optimized out>,
ap=<optimized out>) at ../../fixleaks/gdb/utils.c:436
#5 0x0000555c249e8c22 in internal_error (file=file@entry=0x555c24e0f2ad "../../fixleaks/gdb/inferior.c",
line=line@entry=287, fmt=<optimized out>) at ../../fixleaks/gdb/common/errors.c:55
#6 0x0000555c247d3f5c in find_inferior_pid (pid=<optimized out>) at ../../fixleaks/gdb/inferior.c:287
#7 0x0000555c24ad2248 in find_inferior_pid (pid=<optimized out>) at ../../fixleaks/gdb/inferior.c:302
#8 find_inferior_ptid (ptid=...) at ../../fixleaks/gdb/inferior.c:301
#9 0x0000555c24c35f25 in find_thread_ptid (ptid=...) at ../../fixleaks/gdb/thread.c:522
#10 0x0000555c24b0ab4d in thread_db_target::pid_to_str[abi:cxx11](ptid_t) (
this=0x555c2532e3e0 <the_thread_db_target>, ptid=...) at ../../fixleaks/gdb/linux-thread-db.c:1637
#11 0x0000555c24c2f420 in target_pid_to_str[abi:cxx11](ptid_t) (ptid=...) at ../../fixleaks/gdb/target.c:2083
#12 0x0000555c24ad9cab in stop_all_threads () at ../../fixleaks/gdb/infrun.c:4373
#13 0x0000555c24ada00f in stop_waiting (ecs=<optimized out>) at ../../fixleaks/gdb/infrun.c:7464
#14 0x0000555c24adc401 in process_event_stop_test (ecs=ecs@entry=0x7ffc9402d9d0) at ../../fixleaks/gdb/infrun.c:6181
...
(top-gdb) fr 12
#12 0x0000555c24ad9cab in stop_all_threads () at ../../fixleaks/gdb/infrun.c:4373
(top-gdb) p event_ptid
$5 = {m_pid = 25419, m_lwp = 25427, m_tid = 0}
(top-gdb) p ptid
$6 = {m_pid = 0, m_lwp = 0, m_tid = 0}
(top-gdb) p ws
$7 = {kind = TARGET_WAITKIND_THREAD_EXITED, value = {integer = 0, sig = GDB_SIGNAL_0, related_pid = {m_pid = 0,
m_lwp = 0, m_tid = 0}, execd_pathname = 0x0, syscall_number = 0}}
(top-gdb)
The gdb.log corresponding to the above crash is:
(gdb) PASS: gdb.threads/watchthreads-reorder.exp: reorder1: set debug infrun 1
continue
Continuing.
infrun: clear_proceed_status_thread (Thread 0x7ffff7fcfb40 (LWP 25419))
infrun: clear_proceed_status_thread (Thread 0x7ffff7310700 (LWP 25427))
infrun: clear_proceed_status_thread (Thread 0x7ffff6b0f700 (LWP 25428))
infrun: proceed (addr=0xffffffffffffffff, signal=GDB_SIGNAL_DEFAULT)
infrun: proceed: resuming Thread 0x7ffff7fcfb40 (LWP 25419)
infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread [Thread 0x7ffff7fcfb40 (LWP 25419)] at 0x7ffff7344317
infrun: infrun_async(1)
infrun: prepare_to_wait
infrun: proceed: resuming Thread 0x7ffff7310700 (LWP 25427)
infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread [Thread 0x7ffff7310700 (LWP 25427)] at 0x5555555553d7
infrun: prepare_to_wait
infrun: proceed: resuming Thread 0x7ffff6b0f700 (LWP 25428)
infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread [Thread 0x7ffff6b0f700 (LWP 25428)] at 0x5555555554c8
infrun: prepare_to_wait
infrun: target_wait (-1.0.0, status) =
infrun: -1.0.0 [process -1],
infrun: status->kind = ignore
infrun: TARGET_WAITKIND_IGNORE
infrun: prepare_to_wait
Joining the threads.
[Thread 0x7ffff6b0f700 (LWP 25428) exited]
infrun: target_wait (-1.0.0, status) =
infrun: -1.0.0 [process -1],
infrun: status->kind = ignore
infrun: TARGET_WAITKIND_IGNORE
infrun: prepare_to_wait
infrun: target_wait (-1.0.0, status) =
infrun: 25419.25419.0 [Thread 0x7ffff7fcfb40 (LWP 25419)],
infrun: status->kind = stopped, signal = GDB_SIGNAL_TRAP
infrun: TARGET_WAITKIND_STOPPED
infrun: stop_pc = 0x555555555e50
infrun: context switch
infrun: Switching context from Thread 0x7ffff6b0f700 (LWP 25428) to Thread 0x7ffff7fcfb40 (LWP 25419)
infrun: BPSTAT_WHAT_STOP_NOISY
infrun: stop_waiting
infrun: stop_all_threads
infrun: stop_all_threads, pass=0, iterations=0
infrun: Thread 0x7ffff7fcfb40 (LWP 25419) not executing
infrun: Thread 0x7ffff7310700 (LWP 25427) executing, need stop
[Thread 0x7ffff7310700 (LWP 25427) exited]
infrun: target_wait (-1.0.0, status) =
infrun: 25419.25427.0 [LWP 25427],
infrun: status->kind = thread exited, status = 0
infrun: infrun_async(0)
../../fixleaks/gdb/inferior.c:287: internal-error: inferior* find_inferior_pid(int): Assertion `pid != 0' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) FAIL: gdb.threads/watchthreads-reorder.exp: reorder1: continue to breakpoint: break-at-exit (GDB internal error)
Resyncing due to internal error.
n
infrun: infrun_async(1)
This is a bug, please report it. For instructions, see:
<http://www.gnu.org/software/gdb/bugs/>.
infrun: infrun_async(0)
../../fixleaks/gdb/inferior.c:287: internal-error: inferior* find_inferior_pid(int): Assertion `pid != 0' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) y
|
||
|
Philippe Waroquiers
|
65d2b333a8 |
Fix GDB being suspended SIGTTOU when running gdb.multi/multi-arch-exec.exp
When running under valgrind, multi-arch-exec.exp blocks forever.
Some (painful) investigation shows this is due to valgrind slowing
down GDB, and GDB has to output some messages at a different time,
when GDB does not have the terminal for output.
To reproduce the problem, you need to slow down GDB.
It can be reproduced by:
cd gdb/testsuite/outputs/gdb.multi/multi-arch-exec/
../../../../gdb -ex 'set debug lin-lwp 1' -ex 'break all_started' -ex 'run' ./2-multi-arch-exec
The above stops at a breakpoint. Do continue.
GDB is then suspended because of SIGTTOU.
The stacktrace that leads to the hanging GDB is:
(top-gdb) bt
at ../../binutils-gdb/gdb/exceptions.c:130
....
Alternatively, the same happens when doing
strace -o s.out ../../../../gdb -ex 'break all_started' -ex 'run' ./2-multi-arch-exec
And of course, valgrind is also sufficiently slowing down GDB to
reproduce this :).
Fix this by calling target_terminal::ours_for_output ();
at the beginning of follow_exec.
Note that all this terminal handling is not very clear to me:
* Some code takes the terminal, and then takes care to give it back to the inferior
if the terminal was belonging to the inferior.
(e.g. annotate_breakpoints_invalid).
* some code takes the terminal, but does not give it back
(e.g. update_inserted_breakpoint_locations).
* some code takes it, and unconditionally gives it back
(e.g. handle_jit_event)
* here and there, we also find
gdb::optional<target_terminal::scoped_restore_terminal_state> term_state;
before a (sometimes optional) call to ours_for_output.
And such calls to ours_for_output is sometimes protected by:
if (target_supports_terminal_ours ())
(e.g. exceptions.c: print_flush).
but most of the code calls it without checking if the target supports it.
* some code is outputting some errors, but only takes the terminal
after. E.g. infcmd.c: prepare_one_step
gdb/ChangeLog
2019-03-28 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* infrun.c (follow_exec): Call target_terminal::ours_for_output.
|
||
|
Tom Tromey
|
595915c1c1 |
Merge handle_inferior_event and handle_inferior_event_1
I noticed that handle_inferior_event is just a small wrapper that frees the value chain. This patch replaces it with a scoped_value_mark, reducing the number of lines of code here. Regression tested on x86-64 Fedora 29. gdb/ChangeLog 2019-03-20 Tom Tromey <tromey@adacore.com> * infrun.c (handle_inferior_event): Rename from handle_inferior_event_1. Create a scoped_value_mark. (handle_inferior_event): Remove. |
||
|
Tom Tromey
|
4c7d57e72e |
Don't show "display"s twice in MI
If you run "gdb -i=mi2" and set a "display", then when "next"ing the
displays will be shown twice:
~"1: x = 23\n"
~"7\t printf(\"%d\\n\", x);\n"
~"1: x = 23\n"
*stopped,reason="end-stepping-range",frame={addr="0x0000000000400565",func="main",args=[],file="q.c",fullname="/tmp/q.c",line="7"},thread-id="1",stopped-threads="all",core="1"
The immediate cause of this is this code in mi_on_normal_stop_1:
print_stop_event (mi_uiout);
console_interp = interp_lookup (current_ui, INTERP_CONSOLE);
if (should_print_stop_to_console (console_interp, tp))
print_stop_event (mi->cli_uiout);
... which obviously prints the stop twice.
However, I think the first call to print_stop_event is intended just
to emit the MI *stopped notification, which explains why the source
line does not show up two times.
This patch fixes the bug by changing print_stop_event to only call
do_displays for non-MI-like ui-outs.
Tested on x86-64 Fedora 29.
gdb/ChangeLog
2019-03-19 Tom Tromey <tromey@adacore.com>
* mi/mi-interp.c (mi_on_normal_stop_1): Only show displays once.
* infrun.h (print_stop_event): Add "displays" parameter.
* infrun.c (print_stop_event): Add "displays" parameter.
gdb/testsuite/ChangeLog
2019-03-19 Tom Tromey <tromey@adacore.com>
* gdb.mi/mi2-cli-display.c: New file.
* gdb.mi/mi2-cli-display.exp: New file.
|
||
|
Tom Tromey
|
a068643d69 |
Change pid_to_str to return std::string
Currently the target pid_to_str method returns a const char *, so many implementations have a static buffer that they update. This patch changes these methods to return a std::string instead. I think this is cleaner and avoids possible gotchas when calling pid_to_str on different ptids in a single statement. (Though no such calls exist currently.) This also updates various helper functions, and the gdbarch pid_to_str methods. I also made a best effort to fix all the callers, but I can't build some of the *-nat.c files. Tested by the buildbot. gdb/ChangeLog 2019-03-13 Tom Tromey <tromey@adacore.com> * i386-gnu-nat.c (i386_gnu_nat_target::fetch_registers) (i386_gnu_nat_target::store_registers): Update. * target-debug.h (target_debug_print_std_string): New macro. * x86-linux-nat.c (x86_linux_nat_target::enable_btrace): Update. * windows-tdep.c (display_one_tib): Update. * tui/tui-stack.c (tui_make_status_line): Update. * top.c (print_inferior_quit_action): Update. * thread.c (thr_try_catch_cmd): Update. (add_thread_with_info): Update. (thread_target_id_str): Update. (thr_try_catch_cmd): Update. (thread_command): Update. (thread_find_command): Update. * record-btrace.c (record_btrace_target::info_record) (record_btrace_resume_thread, record_btrace_target::resume) (record_btrace_cancel_resume, record_btrace_step_thread) (record_btrace_target::wait, record_btrace_target::wait) (record_btrace_target::wait, record_btrace_target::stop): Update. * progspace.c (print_program_space): Update. * process-stratum-target.c (process_stratum_target::thread_address_space): Update. * linux-fork.c (linux_fork_mourn_inferior) (detach_checkpoint_command, info_checkpoints_command) (linux_fork_context): Update. (linux_fork_detach): Update. (class scoped_switch_fork_info): Update. (delete_checkpoint_command): Update. * infrun.c (follow_fork_inferior): Update. (follow_fork_inferior): Update. (proceed_after_vfork_done): Update. (handle_vfork_child_exec_or_exit): Update. (follow_exec): Update. (displaced_step_prepare_throw): Update. (displaced_step_restore): Update. (start_step_over): Update. (resume_1): Update. (clear_proceed_status_thread): Update. (proceed): Update. (print_target_wait_results): Update. (do_target_wait): Update. (context_switch): Update. (stop_all_threads): Update. (restart_threads): Update. (finish_step_over): Update. (handle_signal_stop): Update. (switch_back_to_stepped_thread): Update. (keep_going_pass_signal): Update. (print_exited_reason): Update. (normal_stop): Update. * inferior.c (inferior_pid_to_str): Change return type. (print_selected_inferior): Update. (add_inferior): Update. (detach_inferior): Update. * dummy-frame.c (fprint_dummy_frames): Update. * dcache.c (dcache_info_1): Update. * btrace.c (btrace_enable, btrace_disable, btrace_teardown) (btrace_fetch, btrace_clear): Update. * linux-tdep.c (linux_core_pid_to_str): Change return type. * i386-cygwin-tdep.c (i386_windows_core_pid_to_str): Change return type. * fbsd-tdep.c (fbsd_core_pid_to_str): Change return type. * sol2-tdep.h (sol2_core_pid_to_str): Change return type. * sol2-tdep.c (sol2_core_pid_to_str): Change return type. * gdbarch.c, gdbarch.h: Rebuild. * gdbarch.sh (core_pid_to_str): Change return type. * windows-nat.c (struct windows_nat_target) <pid_to_str>: Change return type. (windows_nat_target::pid_to_str): Change return type. (windows_delete_thread): Update. (windows_nat_target::attach): Update. (windows_nat_target::files_info): Update. * target-delegates.c: Rebuild. * sol-thread.c (class sol_thread_target) <pid_to_str>: Change return type. (sol_thread_target::pid_to_str): Change return type. * remote.c (class remote_target) <pid_to_str>: Change return type. (remote_target::pid_to_str): Change return type. (extended_remote_target::attach, remote_target::remote_stop_ns) (remote_target::remote_notif_remove_queued_reply) (remote_target::push_stop_reply, remote_target::disable_btrace): Update. (extended_remote_target::attach): Update. * remote-sim.c (struct gdbsim_target) <pid_to_str>: Change return type. (gdbsim_target::pid_to_str): Change return type. * ravenscar-thread.c (struct ravenscar_thread_target) <pid_to_str>: Change return type. (ravenscar_thread_target::pid_to_str): Change return type. * procfs.c (class procfs_target) <pid_to_str>: Change return type. (procfs_target::pid_to_str): Change return type. (procfs_target::attach): Update. (procfs_target::detach): Update. (procfs_target::fetch_registers): Update. (procfs_target::store_registers): Update. (procfs_target::wait): Update. (procfs_target::files_info): Update. * obsd-nat.c (obsd_nat_target::pid_to_str): Change return type. * nto-procfs.c (struct nto_procfs_target) <pid_to_str>: Change return type. (nto_procfs_target::pid_to_str): Change return type. (nto_procfs_target::files_info, nto_procfs_target::attach): Update. * linux-thread-db.c (class thread_db_target) <pid_to_str>: Change return type. * linux-nat.c (linux_nat_target::pid_to_str): Change return type. (exit_lwp): Update. (attach_proc_task_lwp_callback, get_detach_signal) (detach_one_lwp, resume_lwp, linux_nat_target::resume) (linux_nat_target::resume, wait_lwp, stop_callback) (maybe_clear_ignore_sigint, stop_wait_callback, status_callback) (save_stop_reason, select_event_lwp, linux_nat_filter_event) (linux_nat_wait_1, resume_stopped_resumed_lwps) (linux_nat_target::wait, linux_nat_stop_lwp): Update. * inf-ptrace.c (inf_ptrace_target::pid_to_str): Change return type. (inf_ptrace_target::attach): Update. (inf_ptrace_target::files_info): Update. * go32-nat.c (struct go32_nat_target) <pid_to_str>: Change return type. (go32_nat_target::pid_to_str): Change return type. * gnu-nat.c (gnu_nat_target::pid_to_str): Change return type. (gnu_nat_target::wait): Update. (gnu_nat_target::wait): Update. (gnu_nat_target::resume): Update. * fbsd-nat.c (fbsd_nat_target::pid_to_str): Change return type. (fbsd_nat_target::wait): Update. * darwin-nat.c (darwin_nat_target::pid_to_str): Change return type. (darwin_nat_target::attach): Update. * corelow.c (class core_target) <pid_to_str>: Change return type. (core_target::pid_to_str): Change return type. * target.c (normal_pid_to_str): Change return type. (default_pid_to_str): Likewise. (target_pid_to_str): Change return type. (target_translate_tls_address): Update. (target_announce_detach): Update. * bsd-uthread.c (struct bsd_uthread_target) <pid_to_str>: Change return type. (bsd_uthread_target::pid_to_str): Change return type. * bsd-kvm.c (class bsd_kvm_target) <pid_to_str>: Change return type. (bsd_kvm_target::pid_to_str): Change return type. * aix-thread.c (class aix_thread_target) <pid_to_str>: Change return type. (aix_thread_target::pid_to_str): Change return type. * target.h (struct target_ops) <pid_to_str>: Change return type. (target_pid_to_str, normal_pid_to_str): Likewise. * obsd-nat.h (class obsd_nat_target) <pid_to_str>: Change return type. * linux-nat.h (class linux_nat_target) <pid_to_str>: Change return type. * inf-ptrace.h (struct inf_ptrace_target) <pid_to_str>: Change return type. * gnu-nat.h (struct gnu_nat_target) <pid_to_str>: Change return type. * fbsd-nat.h (class fbsd_nat_target) <pid_to_str>: Change return type. * darwin-nat.h (class darwin_nat_target) <pid_to_str>: Change return type. |
||
Pedro Alves
|
fe72666741 |
Fix normal_stop latent bug
TARGET_WAITKIND_NO_RESUMED doesn't have an associated event thread, so we shouldn't be referring to inferior_thread() assuming it points to one. This was caught on the multi-target branch, where we always switch to no-thread-selected whenever we start handling an event, exactly to catch places that incorrectly use "inferior_ptid/inferior_thread()" without switching to the right event thread / target. Here, on the branch, we assert in inferior_thread() because TARGET_WAITKIND_NO_RESUMED doesn't have an associated event thread, so inferior_ptid is still null_ptid. gdb/ChangeLog: 2019-03-07 Pedro Alves <palves@redhat.com> * infrun.c (normal_stop): Also check for TARGET_WAITKIND_NO_RESUMED before referring to inferior_thread(). |
||
|
Tom Tromey
|
9799571ecb |
Change displaced_step_clear_cleanup to a forward_scope_exit
This changes displaced_step_clear_cleanup to be a forward_scope_exit and updates the callers. gdb/ChangeLog 2019-03-06 Tom Tromey <tom@tromey.com> * infrun.c (displaced_step_clear_cleanup): Now a forward_scope_exit type. (displaced_step_prepare_throw): Update. (displaced_step_fixup): Update. |
||
|
Tom Tromey
|
c119e04082 |
Remove excess calls to gdb_flush
A customer noticed some mildly odd MI output, where CLI output was
split into multiple MI strings at unusual boundaries, like this:
~"$1 = (b => true"
~", p => 0x407260"
This is technically correct according to the MI spec, but still
unusual, in that there's no particular reason for the string to be
split where it is.
I tracked this down to a call to gdb_flush in generic_val_print.
Then, I went through all calls to gdb_flush and removed the ones I
thought were superfluous. In particular:
* Any call in the value-printing code;
* Likewise the type-printing code (just a single call); and
* Any call that immediately followed a printf that obviously
ended with a newline, my belief being that gdb's standard output
streams are line buffered (by inheriting the behavior from stdio)
Regression tested on x86-64 Fedora 29.
I didn't add a new test case. I tend to think we don't necessarily
want to specify this behavior in the tests. Let me know what you
think of this.
gdb/ChangeLog
2019-03-05 Tom Tromey <tromey@adacore.com>
* windows-nat.c (windows_nat_target::attach)
(windows_nat_target::detach): Don't call gdb_flush.
* valprint.c (generic_val_print, val_print, val_print_string):
Don't call gdb_flush.
* utils.c (defaulted_query): Don't call gdb_flush.
* typeprint.c (print_type_scalar): Don't call gdb_flush.
* target.c (target_announce_detach): Don't call gdb_flush.
* sparc64-tdep.c (adi_print_versions): Don't call gdb_flush.
* remote.c (extended_remote_target::attach): Don't call
gdb_flush.
* procfs.c (procfs_target::detach): Don't call gdb_flush.
* printcmd.c (do_examine): Don't call gdb_flush.
(info_display_command): Don't call gdb_flush.
* p-valprint.c (pascal_val_print): Don't call gdb_flush.
* nto-procfs.c (nto_procfs_target::attach): Don't call gdb_flush.
* memattr.c (info_mem_command): Don't call gdb_flush.
* mdebugread.c (mdebug_build_psymtabs): Don't call gdb_flush.
* m2-valprint.c (m2_val_print): Don't call gdb_flush.
* infrun.c (follow_exec, handle_command): Don't call gdb_flush.
* inf-ptrace.c (inf_ptrace_target::attach): Don't call gdb_flush.
* hppa-tdep.c (unwind_command): Don't call gdb_flush.
* gnu-nat.c (gnu_nat_target::attach): Don't call gdb_flush.
(gnu_nat_target::detach): Don't call gdb_flush.
* f-valprint.c (f_val_print): Don't call gdb_flush.
* darwin-nat.c (darwin_nat_target::attach): Don't call gdb_flush.
* cli/cli-script.c (read_command_lines): Don't call gdb_flush.
* cli/cli-cmds.c (shell_escape, print_disassembly): Don't call
gdb_flush.
* c-valprint.c (c_val_print): Don't call gdb_flush.
* ada-valprint.c (ada_print_scalar): Don't call gdb_flush.
|
||
|
Tom Tromey
|
46e3ed7ff9 |
C++-ify struct thread_fsm
This C++-ifies struct thread_fsm, replacing the "ops" structure with virtual methods, and changing all the implementations to derive from thread_fsm. gdb/ChangeLog 2019-02-07 Tom Tromey <tom@tromey.com> * thread.c (thread_cancel_execution_command): Update. * thread-fsm.h (struct thread_fsm): Add constructor, destructor, methods. (struct thread_fsm_ops): Remove. (thread_fsm_ctor, thread_fsm_delete, thread_fsm_clean_up) (thread_fsm_should_stop, thread_fsm_return_value) (thread_fsm_set_finished, thread_fsm_finished_p) (thread_fsm_async_reply_reason, thread_fsm_should_notify_stop): Don't declare. * mi/mi-interp.c (mi_on_normal_stop_1): Update. * infrun.c (clear_proceed_status_thread) (clean_up_just_stopped_threads_fsms, fetch_inferior_event) (print_stop_event): Update. * infcmd.c (struct step_command_fsm): Inherit from thread_fsm. Add constructor. (step_command_fsm_ops): Remove. (new_step_command_fsm): Remove. (step_1): Update. (step_command_fsm::should_stop): Rename from step_command_fsm_should_stop. (step_command_fsm::clean_up): Rename from step_command_fsm_clean_up. (step_command_fsm::do_async_reply_reason): Rename from step_command_fsm_async_reply_reason. (struct until_next_fsm): Inherit from thread_fsm. Add constructor. (until_next_fsm_ops): Remove. (new_until_next_fsm): Remove. (until_next_fsm::should_stop): Rename from until_next_fsm_should_stop. (until_next_fsm::clean_up): Rename from until_next_fsm_clean_up. (until_next_fsm::do_async_reply_reason): Rename from until_next_fsm_async_reply_reason. (struct finish_command_fsm): Inherit from thread_fsm. Add constructor. Change type of breakpoint. (finish_command_fsm_ops): Remove. (new_finish_command_fsm): Remove. (finish_command_fsm::should_stop): Rename from finish_command_fsm_should_stop. (finish_command_fsm::clean_up): Rename from finish_command_fsm_clean_up. (finish_command_fsm::return_value): Rename from finish_command_fsm_return_value. (finish_command_fsm::do_async_reply_reason): Rename from finish_command_fsm_async_reply_reason. (finish_command): Update. * infcall.c (struct call_thread_fsm): Inherit from thread_fsm. Add constructor. (call_thread_fsm_ops): Remove. (call_thread_fsm::call_thread_fsm): Rename from new_call_thread_fsm. (call_thread_fsm::should_stop): Rename from call_thread_fsm_should_stop. (call_thread_fsm::should_notify_stop): Rename from call_thread_fsm_should_notify_stop. (run_inferior_call, call_function_by_hand_dummy): Update. * cli/cli-interp.c (should_print_stop_to_console): Update. * breakpoint.c (struct until_break_fsm): Inherit from thread_fsm. Add constructor. Change type of location_breakpoint, caller_breakpoint. (until_break_fsm_ops): Remove. (new_until_break_fsm): Remove. (until_break_fsm::should_stop): Rename from until_break_fsm_should_stop. (until_break_fsm::clean_up): Rename from until_break_fsm_clean_up. (until_break_fsm::do_async_reply_reason): Rename from until_break_fsm_async_reply_reason. (until_break_command): Update. * thread-fsm.c: Remove. * Makefile.in (COMMON_SFILES): Remove thread-fsm.c. |
||
|
Tom Tromey
|
0747795c08 |
Normalize includes to use common/
This changes all includes to use the form "common/filename.h" rather than just "filename.h". This was written by a script. gdb/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * xtensa-linux-nat.c: Fix common/ includes. * xml-support.h: Fix common/ includes. * xml-support.c: Fix common/ includes. * x86-linux-nat.c: Fix common/ includes. * windows-nat.c: Fix common/ includes. * varobj.h: Fix common/ includes. * varobj.c: Fix common/ includes. * value.c: Fix common/ includes. * valops.c: Fix common/ includes. * utils.c: Fix common/ includes. * unittests/xml-utils-selftests.c: Fix common/ includes. * unittests/utils-selftests.c: Fix common/ includes. * unittests/unpack-selftests.c: Fix common/ includes. * unittests/tracepoint-selftests.c: Fix common/ includes. * unittests/style-selftests.c: Fix common/ includes. * unittests/string_view-selftests.c: Fix common/ includes. * unittests/scoped_restore-selftests.c: Fix common/ includes. * unittests/scoped_mmap-selftests.c: Fix common/ includes. * unittests/scoped_fd-selftests.c: Fix common/ includes. * unittests/rsp-low-selftests.c: Fix common/ includes. * unittests/parse-connection-spec-selftests.c: Fix common/ includes. * unittests/optional-selftests.c: Fix common/ includes. * unittests/offset-type-selftests.c: Fix common/ includes. * unittests/observable-selftests.c: Fix common/ includes. * unittests/mkdir-recursive-selftests.c: Fix common/ includes. * unittests/memrange-selftests.c: Fix common/ includes. * unittests/memory-map-selftests.c: Fix common/ includes. * unittests/lookup_name_info-selftests.c: Fix common/ includes. * unittests/function-view-selftests.c: Fix common/ includes. * unittests/environ-selftests.c: Fix common/ includes. * unittests/copy_bitwise-selftests.c: Fix common/ includes. * unittests/common-utils-selftests.c: Fix common/ includes. * unittests/cli-utils-selftests.c: Fix common/ includes. * unittests/array-view-selftests.c: Fix common/ includes. * ui-file.c: Fix common/ includes. * tui/tui-io.c: Fix common/ includes. * tracepoint.h: Fix common/ includes. * tracepoint.c: Fix common/ includes. * tracefile-tfile.c: Fix common/ includes. * top.h: Fix common/ includes. * top.c: Fix common/ includes. * thread.c: Fix common/ includes. * target/waitstatus.h: Fix common/ includes. * target/waitstatus.c: Fix common/ includes. * target.h: Fix common/ includes. * target.c: Fix common/ includes. * target-memory.c: Fix common/ includes. * target-descriptions.c: Fix common/ includes. * symtab.h: Fix common/ includes. * symfile.c: Fix common/ includes. * stap-probe.c: Fix common/ includes. * spu-linux-nat.c: Fix common/ includes. * sparc-nat.c: Fix common/ includes. * source.c: Fix common/ includes. * solib.c: Fix common/ includes. * solib-target.c: Fix common/ includes. * ser-unix.c: Fix common/ includes. * ser-tcp.c: Fix common/ includes. * ser-pipe.c: Fix common/ includes. * ser-base.c: Fix common/ includes. * selftest-arch.c: Fix common/ includes. * s12z-tdep.c: Fix common/ includes. * rust-exp.y: Fix common/ includes. * rs6000-aix-tdep.c: Fix common/ includes. * riscv-tdep.c: Fix common/ includes. * remote.c: Fix common/ includes. * remote-notif.h: Fix common/ includes. * remote-fileio.h: Fix common/ includes. * remote-fileio.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * record-btrace.c: Fix common/ includes. * python/python.c: Fix common/ includes. * python/py-type.c: Fix common/ includes. * python/py-inferior.c: Fix common/ includes. * progspace.h: Fix common/ includes. * producer.c: Fix common/ includes. * procfs.c: Fix common/ includes. * proc-api.c: Fix common/ includes. * printcmd.c: Fix common/ includes. * ppc-linux-nat.c: Fix common/ includes. * parser-defs.h: Fix common/ includes. * osdata.c: Fix common/ includes. * obsd-nat.c: Fix common/ includes. * nat/x86-linux.c: Fix common/ includes. * nat/x86-linux-dregs.c: Fix common/ includes. * nat/x86-dregs.h: Fix common/ includes. * nat/x86-dregs.c: Fix common/ includes. * nat/ppc-linux.c: Fix common/ includes. * nat/mips-linux-watch.h: Fix common/ includes. * nat/mips-linux-watch.c: Fix common/ includes. * nat/linux-waitpid.c: Fix common/ includes. * nat/linux-ptrace.h: Fix common/ includes. * nat/linux-ptrace.c: Fix common/ includes. * nat/linux-procfs.c: Fix common/ includes. * nat/linux-personality.c: Fix common/ includes. * nat/linux-osdata.c: Fix common/ includes. * nat/linux-namespaces.c: Fix common/ includes. * nat/linux-btrace.h: Fix common/ includes. * nat/linux-btrace.c: Fix common/ includes. * nat/fork-inferior.c: Fix common/ includes. * nat/amd64-linux-siginfo.c: Fix common/ includes. * nat/aarch64-sve-linux-ptrace.c: Fix common/ includes. * nat/aarch64-linux.c: Fix common/ includes. * nat/aarch64-linux-hw-point.h: Fix common/ includes. * nat/aarch64-linux-hw-point.c: Fix common/ includes. * namespace.h: Fix common/ includes. * mips-linux-tdep.c: Fix common/ includes. * minsyms.c: Fix common/ includes. * mi/mi-parse.h: Fix common/ includes. * mi/mi-main.c: Fix common/ includes. * mi/mi-cmd-env.c: Fix common/ includes. * memrange.h: Fix common/ includes. * memattr.c: Fix common/ includes. * maint.h: Fix common/ includes. * maint.c: Fix common/ includes. * main.c: Fix common/ includes. * machoread.c: Fix common/ includes. * location.c: Fix common/ includes. * linux-thread-db.c: Fix common/ includes. * linux-nat.c: Fix common/ includes. * linux-fork.c: Fix common/ includes. * inline-frame.c: Fix common/ includes. * infrun.c: Fix common/ includes. * inflow.c: Fix common/ includes. * inferior.h: Fix common/ includes. * inferior.c: Fix common/ includes. * infcmd.c: Fix common/ includes. * inf-ptrace.c: Fix common/ includes. * inf-child.c: Fix common/ includes. * ia64-linux-nat.c: Fix common/ includes. * i387-tdep.c: Fix common/ includes. * i386-tdep.c: Fix common/ includes. * i386-linux-tdep.c: Fix common/ includes. * i386-linux-nat.c: Fix common/ includes. * i386-go32-tdep.c: Fix common/ includes. * i386-fbsd-tdep.c: Fix common/ includes. * i386-fbsd-nat.c: Fix common/ includes. * guile/scm-type.c: Fix common/ includes. * guile/guile.c: Fix common/ includes. * go32-nat.c: Fix common/ includes. * gnu-nat.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbarch-selftests.c: Fix common/ includes. * gdb_usleep.c: Fix common/ includes. * gdb_select.h: Fix common/ includes. * gdb_bfd.c: Fix common/ includes. * gcore.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * findvar.c: Fix common/ includes. * fbsd-nat.c: Fix common/ includes. * event-top.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * dwarf2read.c: Fix common/ includes. * dwarf2loc.c: Fix common/ includes. * dwarf2-frame.c: Fix common/ includes. * dwarf-index-cache.c: Fix common/ includes. * dtrace-probe.c: Fix common/ includes. * disasm-selftests.c: Fix common/ includes. * defs.h: Fix common/ includes. * csky-tdep.c: Fix common/ includes. * cp-valprint.c: Fix common/ includes. * cp-support.h: Fix common/ includes. * cp-support.c: Fix common/ includes. * corelow.c: Fix common/ includes. * completer.h: Fix common/ includes. * completer.c: Fix common/ includes. * compile/compile.c: Fix common/ includes. * compile/compile-loc2c.c: Fix common/ includes. * compile/compile-cplus-types.c: Fix common/ includes. * compile/compile-cplus-symbols.c: Fix common/ includes. * command.h: Fix common/ includes. * cli/cli-dump.c: Fix common/ includes. * cli/cli-cmds.c: Fix common/ includes. * charset.c: Fix common/ includes. * build-id.c: Fix common/ includes. * btrace.h: Fix common/ includes. * btrace.c: Fix common/ includes. * breakpoint.h: Fix common/ includes. * breakpoint.c: Fix common/ includes. * ax.h: (enum agent_op): Fix common/ includes. * ax-general.c (struct aop_map): Fix common/ includes. * ax-gdb.c: Fix common/ includes. * auxv.c: Fix common/ includes. * auto-load.c: Fix common/ includes. * arm-tdep.c: Fix common/ includes. * arch/riscv.c: Fix common/ includes. * arch/ppc-linux-common.c: Fix common/ includes. * arch/i386.c: Fix common/ includes. * arch/arm.c: Fix common/ includes. * arch/arm-linux.c: Fix common/ includes. * arch/arm-get-next-pcs.c: Fix common/ includes. * arch/amd64.c: Fix common/ includes. * arch/aarch64.c: Fix common/ includes. * arch/aarch64-insn.c: Fix common/ includes. * arch-utils.c: Fix common/ includes. * amd64-windows-tdep.c: Fix common/ includes. * amd64-tdep.c: Fix common/ includes. * amd64-sol2-tdep.c: Fix common/ includes. * amd64-obsd-tdep.c: Fix common/ includes. * amd64-nbsd-tdep.c: Fix common/ includes. * amd64-linux-tdep.c: Fix common/ includes. * amd64-linux-nat.c: Fix common/ includes. * amd64-fbsd-tdep.c: Fix common/ includes. * amd64-fbsd-nat.c: Fix common/ includes. * amd64-dicos-tdep.c: Fix common/ includes. * amd64-darwin-tdep.c: Fix common/ includes. * agent.c: Fix common/ includes. * ada-lang.h: Fix common/ includes. * ada-lang.c: Fix common/ includes. * aarch64-tdep.c: Fix common/ includes. gdb/gdbserver/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * win32-low.c: Fix common/ includes. * win32-i386-low.c: Fix common/ includes. * tracepoint.c: Fix common/ includes. * thread-db.c: Fix common/ includes. * target.h: Fix common/ includes. * symbol.c: Fix common/ includes. * spu-low.c: Fix common/ includes. * server.h: Fix common/ includes. * server.c: Fix common/ includes. * remote-utils.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * nto-x86-low.c: Fix common/ includes. * notif.h: Fix common/ includes. * mem-break.h: Fix common/ includes. * lynx-low.c: Fix common/ includes. * lynx-i386-low.c: Fix common/ includes. * linux-x86-tdesc-selftest.c: Fix common/ includes. * linux-x86-low.c: Fix common/ includes. * linux-low.c: Fix common/ includes. * inferiors.h: Fix common/ includes. * i387-fp.c: Fix common/ includes. * hostio.c: Fix common/ includes. * hostio-errno.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbreplay.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * ax.c: (enum gdb_agent_op): Fix common/ includes. |
||
|
Pedro Alves
|
adc6a863a9 |
target_pass_signals/target_program_signals: Use gdb::array_view
This replaces the pointer and length parameters of target_pass_signals and target_program_signals with a gdb::array_view parameter, and fixes the fallout. In infrun.c, the signal_stop, signal_print, signal_program, signal_catch, signal_pass globals are currently pointers to heap-allocated memory. I see no point in that, so I converted them to arrays. This allows simplifying the calls to target_pass_signals/target_program_signals, since we can pass the array directly, which can implicitly convert to gdb::array_view. gdb/ChangeLog: 2019-01-24 Pedro Alves <palves@redhat.com> * infrun.c (signal_stop, signal_print, signal_program) (signal_catch, signal_pass): Now arrays instead of pointers. (update_signals_program_target, do_target_resume) (signal_catch_update, handle_command, _initialize_infrun): Adjust. * linux-nat.c (linux_nat_target::pass_signals) (linux_nat_target::create_inferior, linux_nat_target::attach): Adjust. * linux-nat.h (linux_nat_target::pass_signals): Adjust. * nto-procfs.c (nto_procfs_target::pass_signals): Adjust. * procfs.c (procfs_target::pass_signals): Adjust. * record-full.c (record_full_target::resume): Adjust. * remote.c (remote_target::pass_signals) (remote_target::program_signals): Adjust. * target-debug.h (target_debug_print_signals): Now takes a gdb::array_view as parameter. Adjust. * target.h (target_ops) <pass_signals, program_signals>: Replace pointer and length parameters with gdb::array_view. (target_pass_signals, target_program_signals): Likewise. * target-delegates.c: Regenerate. |
||
|
Tom Tromey
|
979a0d1304 |
Update an obsolete cleanup comment
This updates a comment in fetch_inferior_event. The comment refers to a cleanup that is now a scoped_restore_current_thread. gdb/ChangeLog: 2019-01-23 Tom Tromey <tom@tromey.com> * infrun.c (fetch_inferior_event): Update comment. |
||
|
Tom Tromey
|
d238133d02 |
Remove remaining cleanup from fetch_inferior_event
This removes the remaining cleanup from fetch_inferior_event, replacing it with a SCOPE_EXIT. This required introducing a new scope and reindenting. gdb/ChangeLog: 2019-01-23 Tom Tromey <tom@tromey.com> Pedro Alves <palves@redhat.com> * infrun.c (reinstall_readline_callback_handler_cleanup): Remove parameter. (fetch_inferior_event): Use SCOPE_EXIT. |
||
|
Tom Tromey
|
9885e6bb5b |
Remove cleanup from stop_all_threads
This removes the cleanup from stop_all_threads, replacing it with a scope_exit. gdb/ChangeLog: 2019-01-23 Tom Tromey <tom@tromey.com> Pedro Alves <palves@redhat.com> * infrun.c (disable_thread_events): Delete. (stop_all_threads): Use SCOPE_EXIT. |
||
|
Tom Tromey
|
694c6bf542 |
Remove make_bpstat_clear_actions_cleanup
This removes make_bpstat_clear_actions_cleanup, replacing it with uses of scope_exit. gdb/ChangeLog: 2019-01-23 Tom Tromey <tom@tromey.com> Andrew Burgess <andrew.burgess@embecosm.com> Pedro Alves <palves@redhat.com> * infrun.c (fetch_inferior_event): Use scope_exit. * utils.h (make_bpstat_clear_actions_cleanup): Don't declare. * top.c (execute_command): Use scope_exit. * breakpoint.c (bpstat_do_actions): Use scope_exit. * utils.c (do_bpstat_clear_actions_cleanup) (make_bpstat_clear_actions_cleanup): Remove. |
||
|
Tom Tromey
|
4c41382ac1 |
Remove delete_just_stopped_threads_infrun_breakpoints_cleanup
v3: sorted earlier in the series, and replaces the cleanup in fetch_inferior_event here too instead of in some other patch. This removes delete_just_stopped_threads_infrun_breakpoints_cleanup, replacing it with uses of scope_exit. gdb/ChangeLog: 2019-01-23 Tom Tromey <tom@tromey.com> Pedro Alves <palves@redhat.com> * infrun.c: Include "common/scope-exit.h" (delete_just_stopped_threads_infrun_breakpoints_cleanup): Remove. (wait_for_inferior): Use SCOPE_EXIT. (fetch_inferior_event): Use scope_exit. |
||
Simon Marchi
|
d20172fc53 |
Place displaced step data directly in inferior structure
This patch moves the per-inferior data related to displaced stepping to be directly in the inferior structure, rather than in a container on the side. On notable difference is that previously, we deleted the state on inferior exit, which guaranteed a clean state if re-using the inferior for a new run or attach. We now need to reset the state manually. At the same time, I changed step_saved_copy to be a gdb::byte_vector, so it is automatically freed on destruction (which should plug the leak reported here [1]). [1] https://sourceware.org/ml/gdb-patches/2018-11/msg00202.html gdb/ChangeLog: * inferior.h (class inferior) <displaced_step_state>: New field. * infrun.h (struct displaced_step_state): Move here from infrun.c. Initialize fields, add constructor. <inf>: Remove field. <reset>: New method. * infrun.c (struct displaced_step_inferior_state): Move to infrun.h. (displaced_step_inferior_states): Remove. (get_displaced_stepping_state): Adust. (displaced_step_in_progress_any_inferior): Adjust. (displaced_step_in_progress_thread): Adjust. (displaced_step_in_progress): Adjust. (add_displaced_stepping_state): Remove. (get_displaced_step_closure_by_addr): Adjust. (remove_displaced_stepping_state): Remove. (infrun_inferior_exit): Call displaced_step_state.reset. (use_displaced_stepping): Don't check for NULL. (displaced_step_prepare_throw): Call get_displaced_stepping_state. (displaced_step_fixup): Don't check for NULL. (prepare_for_detach): Don't check for NULL. |
||
Joel Brobecker
|
42a4f53d2b |
Update copyright year range in all GDB files.
This commit applies all changes made after running the gdb/copyright.py script. Note that one file was flagged by the script, due to an invalid copyright header (gdb/unittests/basic_string_view/element_access/char/empty.cc). As the file was copied from GCC's libstdc++-v3 testsuite, this commit leaves this file untouched for the time being; a patch to fix the header was sent to gcc-patches first. gdb/ChangeLog: Update copyright year range in all GDB files. |
||
Andrew Burgess
|
6bf78e29a1 |
gdb/infcall: Make infcall_suspend_state into a class
I ran into a situation where attempting to make an inferior function
call would trigger an assertion, like this:
(gdb) call some_inferior_function ()
../../src/gdb/regcache.c:310: internal-error: void regcache::restore(readonly_detached_regcache*): Assertion `src != NULL' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)
The problem that triggers the assertion is that in the function
save_infcall_suspend_state, we basically did this:
1. Create empty infcall_suspend_state object.
2. Fill fields of infcall_suspend_state object.
The problem is causes is that if filling any of the fields triggered
an exception then the infcall_suspend_state object would be deleted
while in a partially filled in state.
In the specific case I encountered, I had a remote RISC-V target that
claimed in its target description to support floating point registers.
However, this was not true, and when GDB tried to read a floating
point register the remote sent back an error. This error would cause
an exception to be thrown while creating the
readonly_detached_regcache, which in turn caused GDB to try and delete
an infcall_suspend_state which didn't have any register state, and
this triggered the assertion.
To prevent this problem we have two possibilities, either, rewrite the
restore code the handle partially initialised infcall_suspend_state
objects, or, prevent partially initialised infcall_suspend_state
objects from existing. The second of these seems like a better
solution.
So, in this patch, I move the filling in of the different
infcall_suspend_state fields within a new constructor for
infcall_suspend_state. Now, if generating one of those fields fails
the destructor for infcall_suspend_state will not be executed and GDB
will not try to restore the partially saved state.
With this patch in place GDB now behaves like this:
(gdb) call some_inferior_function ()
Could not fetch register "ft0"; remote failure reply 'E99'
(gdb)
The inferior function call is aborted due to the error.
This has been tested against x86-64/Linux native, native-gdbserver,
and native-extended-gdbserver with no regressions. I've manually
tested this against my baddly behaving target and confirmed the
inferior function call is aborted as described above.
gdb/ChangeLog:
* infrun.c (infcall_suspend_state::infcall_suspend_state): New.
(infcall_suspend_state::registers): New.
(infcall_suspend_state::restore): New.
(infcall_suspend_state::thread_suspend): Rename to...
(infcall_suspend_state::m_thread_suspend): ...this.
(infcall_suspend_state::registers): Rename to...
(infcall_suspend_state::m_registers): ...this.
(infcall_suspend_state::siginfo_gdbarch): Rename to...
(infcall_suspend_state::m_siginfo_gdbarch): ...this.
(infcall_suspend_state::siginfo_data): Rename to...
(infcall_suspend_state::m_siginfo_data): ...this.
(save_infcall_suspend_state): Rewrite to use infcall_suspend_state
constructor.
(restore_infcall_suspend_state): Rewrite to use
infcall_suspend_state::restore method.
(get_infcall_suspend_state_regcache): Use
infcall_suspend_state::registers method.
|
||
|
Pedro Alves
|
0803633106 |
Per-inferior thread list, thread ranges/iterators, down with ALL_THREADS, etc.
As preparation for multi-target, this patch makes each inferior have
its own thread list.
This isn't absolutely necessary for multi-target, but simplifies
things. It originally stemmed from the desire to eliminate the
init_thread_list calls sprinkled around, plus it makes it more
efficient to iterate over threads of a given inferior (no need to
always iterate over threads of all inferiors).
We still need to iterate over threads of all inferiors in a number of
places, which means we'd need adjust the ALL_THREADS /
ALL_NON_EXITED_THREADS macros. However, naively tweaking those macros
to have an extra for loop, like:
#define ALL_THREADS (thr, inf) \
for (inf = inferior_list; inf; inf = inf->next) \
for (thr = inf->thread_list; thr; thr = thr->next)
causes problems with code that does "break" or "continue" within the
ALL_THREADS loop body. Plus, we need to declare the extra "inf" local
variable in order to pass it as temporary variable to ALL_THREADS
(etc.)
It gets even trickier when we consider extending the macros to filter
out threads matching a ptid_t and a target. The macros become tricker
to read/write. Been there.
An alternative (which was my next attempt), is to replace the
ALL_THREADS etc. iteration style with for_each_all_threads,
for_each_non_exited_threads, etc. functions which would take a
callback as parameter, which would usually be passed a lambda.
However, I did not find that satisfactory at all, because the
resulting code ends up a little less natural / more noisy to read,
write and debug/step-through (due to use of lambdas), and in many
places where we use "continue;" to skip to the next thread now need to
use "return;". (I ran into hard to debug bugs caused by a
continue/return confusion.)
I.e., before:
ALL_NON_EXITED_THREADS (tp)
{
if (tp->not_what_I_want)
continue;
// do something
}
would turn into:
for_each_non_exited_thread ([&] (thread_info *tp)
{
if (tp->not_what_I_want)
return;
// do something
});
Lastly, the solution I settled with was to replace the ALL_THREADS /
ALL_NON_EXITED_THREADS / ALL_INFERIORS macros with (C++20-like) ranges
and iterators, such that you can instead naturaly iterate over
threads/inferiors using range-for, like e.g,.:
// all threads, including THREAD_EXITED threads.
for (thread_info *tp : all_threads ())
{ .... }
// all non-exited threads.
for (thread_info *tp : all_non_exited_threads ())
{ .... }
// all non-exited threads of INF inferior.
for (thread_info *tp : inf->non_exited_threads ())
{ .... }
The all_non_exited_threads() function takes an optional filter ptid_t as
parameter, which is quite convenient when we need to iterate over
threads matching that filter. See e.g., how the
set_executing/set_stop_requested/finish_thread_state etc. functions in
thread.c end up being simplified.
Most of the patch thus is about adding the infrustructure for allowing
the above. Later on when we get to actual multi-target, these
functions/ranges/iterators will gain a "target_ops *" parameter so
that e.g., we can iterate over all threads of a given target that
match a given filter ptid_t.
The only entry points users needs to be aware of are the
all_threads/all_non_exited_threads etc. functions seen above. Thus,
those functions are declared in gdbthread.h/inferior.h. The actual
iterators/ranges are mainly "internals" and thus are put out of view
in the new thread-iter.h/thread-iter.c/inferior-iter.h files. That
keeps the gdbthread.h/inferior.h headers quite a bit more readable.
A common/safe-iterator.h header is added which adds a template that
can be used to build "safe" iterators, which are forward iterators
that can be used to replace the ALL_THREADS_SAFE macro and other
instances of the same idiom in future.
There's a little bit of shuffling of code between
gdbthread.h/thread.c/inferior.h in the patch. That is necessary in
order to avoid circular dependencies between the
gdbthread.h/inferior.h headers.
As for the init_thread_list calls sprinkled around, they're all
eliminated by this patch, and a new, central call is added to
inferior_appeared. Note how also related to that, there's a call to
init_wait_for_inferior in remote.c that is eliminated.
init_wait_for_inferior is currently responsible for discarding skipped
inline frames, which had to be moved elsewhere. Given that nowadays
we always have a thread even for single-threaded processes, the
natural place is to delete a frame's inline frame info when we delete
the thread. I.e., from clear_thread_inferior_resources.
gdb/ChangeLog:
2018-11-22 Pedro Alves <palves@redhat.com>
* Makefile.in (COMMON_SFILES): Add thread-iter.c.
* breakpoint.c (breakpoints_should_be_inserted_now): Replace
ALL_NON_EXITED_THREADS with all_non_exited_threads.
(print_one_breakpoint_location): Replace ALL_INFERIORS with
all_inferiors.
* bsd-kvm.c: Include inferior.h.
* btrace.c (btrace_free_objfile): Replace ALL_NON_EXITED_THREADS
with all_non_exited_threads.
* common/filtered-iterator.h: New.
* common/safe-iterator.h: New.
* corelow.c (core_target_open): Don't call init_thread_list here.
* darwin-nat.c (thread_info_from_private_thread_info): Replace
ALL_THREADS with all_threads.
* fbsd-nat.c (fbsd_nat_target::resume): Replace
ALL_NON_EXITED_THREADS with inf->non_exited_threads.
* fbsd-tdep.c (fbsd_make_corefile_notes): Replace
ALL_NON_EXITED_THREADS with inf->non_exited_threads.
* fork-child.c (postfork_hook): Don't call init_thread_list here.
* gdbarch-selftests.c (register_to_value_test): Adjust.
* gdbthread.h: Don't include "inferior.h" here.
(struct inferior): Forward declare.
(enum step_over_calls_kind): Moved here from inferior.h.
(thread_info::deletable): Definition moved to thread.c.
(find_thread_ptid (inferior *, ptid_t)): Declare.
(ALL_THREADS, ALL_THREADS_BY_INFERIOR, ALL_THREADS_SAFE): Delete.
Include "thread-iter.h".
(all_threads, all_non_exited_threads, all_threads_safe): New.
(any_thread_p): Declare.
(thread_list): Delete.
* infcmd.c (signal_command): Replace ALL_NON_EXITED_THREADS with
all_non_exited_threads.
(proceed_after_attach_callback): Delete.
(proceed_after_attach): Take an inferior pointer instead of an
integer PID. Adjust to use range-for.
(attach_post_wait): Pass down inferior pointer instead of pid.
Use range-for instead of ALL_NON_EXITED_THREADS.
(detach_command): Remove init_thread_list call.
* inferior-iter.h: New.
* inferior.c (struct delete_thread_of_inferior_arg): Delete.
(delete_thread_of_inferior): Delete.
(delete_inferior, exit_inferior_1): Use range-for with
inf->threads_safe() instead of iterate_over_threads.
(inferior_appeared): Call init_thread_list here.
(discard_all_inferiors): Use all_non_exited_inferiors.
(find_inferior_id, find_inferior_pid): Use all_inferiors.
(iterate_over_inferiors): Use all_inferiors_safe.
(have_inferiors, number_of_live_inferiors): Use
all_non_exited_inferiors.
(number_of_inferiors): Use all_inferiors and std::distance.
(print_inferior): Use all_inferiors.
* inferior.h: Include gdbthread.h.
(enum step_over_calls_kind): Moved to gdbthread.h.
(struct inferior) <thread_list>: New field.
<threads, non_exited_threads, threads_safe>: New methods.
(ALL_INFERIORS): Delete.
Include "inferior-iter.h".
(ALL_NON_EXITED_INFERIORS): Delete.
(all_inferiors_safe, all_inferiors, all_non_exited_inferiors): New
functions.
* inflow.c (child_interrupt, child_pass_ctrlc): Replace
ALL_NON_EXITED_THREADS with all_non_exited_threads.
* infrun.c (follow_exec): Use all_threads_safe.
(clear_proceed_status, proceed): Use all_non_exited_threads.
(init_wait_for_inferior): Don't clear inline frame state here.
(infrun_thread_stop_requested, for_each_just_stopped_thread): Use
all_threads instead of ALL_NON_EXITED_THREADS.
(random_pending_event_thread): Use all_non_exited_threads instead
of ALL_NON_EXITED_THREADS. Use a lambda for repeated code.
(clean_up_just_stopped_threads_fsms): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
(handle_no_resumed): Use all_non_exited_threads instead of
ALL_NON_EXITED_THREADS. Use all_inferiors instead of
ALL_INFERIORS.
(restart_threads, switch_back_to_stepped_thread): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
* linux-nat.c (check_zombie_leaders): Replace ALL_INFERIORS with
all_inferiors.
(kill_unfollowed_fork_children): Use inf->non_exited_threads
instead of ALL_NON_EXITED_THREADS.
* linux-tdep.c (linux_make_corefile_notes): Use
inf->non_exited_threads instead of ALL_NON_EXITED_THREADS.
* linux-thread-db.c (thread_db_target::update_thread_list):
Replace ALL_INFERIORS with all_inferiors.
(thread_db_target::thread_handle_to_thread_info): Use
inf->non_exited_threads instead of ALL_NON_EXITED_THREADS.
* mi/mi-interp.c (multiple_inferiors_p): New.
(mi_on_resume_1): Simplify using all_non_exited_threads and
multiple_inferiors_p.
* mi/mi-main.c (mi_cmd_thread_list_ids): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
* nto-procfs.c (nto_procfs_target::open): Don't call
init_thread_list here.
* record-btrace.c (record_btrace_target_open)
(record_btrace_target::stop_recording)
(record_btrace_target::close)
(record_btrace_target::record_is_replaying)
(record_btrace_target::resume, record_btrace_target::wait)
(record_btrace_target::record_stop_replaying): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
* record-full.c (record_full_wait_1): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
* regcache.c (cooked_read_test): Remove reference to global
thread_list.
* remote-sim.c (gdbsim_target::create_inferior): Don't call
init_thread_list here.
* remote.c (remote_target::update_thread_list): Use
all_threads_safe instead of ALL_NON_EXITED_THREADS.
(remote_target::process_initial_stop_replies): Replace
ALL_INFERIORS with all_non_exited_inferiors and use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
(remote_target::open_1): Don't call init_thread_list here.
(remote_target::append_pending_thread_resumptions)
(remote_target::remote_resume_with_hc): Use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
(remote_target::commit_resume)
(remote_target::remove_new_fork_children): Replace ALL_INFERIORS
with all_non_exited_inferiors and use all_non_exited_threads
instead of ALL_NON_EXITED_THREADS.
(remote_target::kill_new_fork_children): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS. Remove
init_thread_list and init_wait_for_inferior calls.
(remote_target::remote_btrace_maybe_reopen)
(remote_target::thread_handle_to_thread_info): Use
all_non_exited_threads instead of ALL_NON_EXITED_THREADS.
* target.c (target_terminal::restore_inferior)
(target_terminal_is_ours_kind): Replace ALL_INFERIORS with
all_non_exited_inferiors.
* thread-iter.c: New file.
* thread-iter.h: New file.
* thread.c: Include "inline-frame.h".
(thread_list): Delete.
(clear_thread_inferior_resources): Call clear_inline_frame_state.
(init_thread_list): Use all_threads_safe instead of
ALL_THREADS_SAFE. Adjust to per-inferior thread lists.
(new_thread): Adjust to per-inferior thread lists.
(add_thread_silent): Pass inferior to find_thread_ptid.
(thread_info::deletable): New, moved from the header.
(delete_thread_1): Adjust to per-inferior thread lists.
(find_thread_global_id): Use inf->threads().
(find_thread_ptid): Use find_inferior_ptid and pass inferior to
find_thread_ptid.
(find_thread_ptid(inferior*, ptid_t)): New overload.
(iterate_over_threads): Use all_threads_safe.
(any_thread_p): New.
(thread_count): Use all_threads and std::distance.
(live_threads_count): Use all_non_exited_threads and
std::distance.
(valid_global_thread_id): Use all_threads.
(in_thread_list): Use find_thread_ptid.
(first_thread_of_inferior): Adjust to per-inferior thread lists.
(any_thread_of_inferior, any_live_thread_of_inferior): Use
inf->non_exited_threads().
(prune_threads, delete_exited_threads): Use all_threads_safe.
(thread_change_ptid): Pass inferior pointer to find_thread_ptid.
(set_resumed, set_running): Use all_non_exited_threads.
(is_thread_state, is_stopped, is_exited, is_running)
(is_executing): Delete.
(set_executing, set_stop_requested, finish_thread_state): Use
all_non_exited_threads.
(print_thread_info_1): Use all_inferiors and all_threads.
(thread_apply_all_command): Use all_non_exited_threads.
(thread_find_command): Use all_threads.
(update_threads_executing): Use all_non_exited_threads.
* tid-parse.c (parse_thread_id): Use inf->threads.
* x86-bsd-nat.c (x86bsd_dr_set): Use inf->non_exited_threads ().
|
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Pedro Alves
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c4c17fb0f5 |
Fix follow_exec latent problem
A following commit to make each inferior have its own thread list exposes a problem with |
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Simon Marchi
|
dbe4e6545e |
Remove displaced_step_inferior_state::next
Commit
|
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Simon Marchi
|
39a36629f6 |
Use std::forward_list for displaced_step_inferior_states
Use std::forward_list instead of manually implemented list. This simplifies a bit the code, especially around removal. Regtested on the buildbot. There are some failures as always, but I think they are unrelated. gdb/ChangeLog: * infrun.c (displaced_step_inferior_states): Change type to std::forward_list. (get_displaced_stepping_state): Adjust. (displaced_step_in_progress_any_inferior): Adjust. (add_displaced_stepping_state): Adjust. (remove_displaced_stepping_state): Adjust. |
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Simon Marchi
|
35ed81d4f4 |
Avoid GDB SIGTTOU on catch exec + set follow-exec-mode new (PR 23368)
Here's a summary of PR 23368:
#include <unistd.h>
int main (void)
{
char *exec_args[] = { "/bin/ls", NULL };
execve (exec_args[0], exec_args, NULL);
}
$ gdb -nx t -ex "catch exec" -ex "set follow-exec-mode new" -ex run
...
[1] + 13146 suspended (tty output) gdb -q -nx t -ex "catch exec" -ex "set follow-exec-mode new" -ex run
$
Here's what happens: when the inferior execs with "follow-exec-mode
new", we first "mourn" it before creating the new one. This ends up
calling inflow_inferior_exit, which sets the per-inferior terminal state
to "is_ours":
inf->terminal_state = target_terminal_state::is_ours;
At this point, the inferior's terminal_state is is_ours, while the
"reality", tracked by gdb_tty_state, is is_inferior (GDB doesn't own the
terminal).
Later, we continue processing the exec inferior event and decide we want
to stop (because of the "catch exec") and call target_terminal::ours to
make sure we own the terminal. However, we don't actually go to the
target backend to change the settings, because the core thinks that no
inferior owns the terminal (inf->terminal_state is
target_terminal_state::is_ours, as checked in
target_terminal_is_ours_kind, for both inferiors). When something in
readline tries to mess with the terminal settings, it generates a
SIGTTOU.
This patch fixes this by tranferring the state of the terminal from the
old inferior to the new inferior.
gdb/ChangeLog:
PR gdb/23368
* infrun.c (follow_exec): In the follow_exec_mode_new case,
transfer terminal state from old new new inferior.
* terminal.h (swap_terminal_info): New function.
* inflow.c (swap_terminal_info): New function.
|
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|
Tom Tromey
|
b926417afa |
Simple -Wshadow=local fixes
This fixes all the straightforward -Wshadow=local warnings in gdb. A few standard approaches are used here: * Renaming an inner (or outer, but more commonly inner) variable; * Lowering a declaration to avoid a clash; * Moving a declaration into a more inner scope to avoid a clash, including the special case of moving a declaration into a loop header. I did not consider any of the changes in this patch to be particularly noteworthy, though of course they should all still be examined. gdb/ChangeLog 2018-10-04 Tom Tromey <tom@tromey.com> * ctf.c (SET_ARRAY_FIELD): Rename "u32". * p-valprint.c (pascal_val_print): Split inner "i" variable. * xtensa-tdep.c (xtensa_push_dummy_call): Declare "i" in loop header. * xstormy16-tdep.c (xstormy16_push_dummy_call): Declare "val" in more inner scope. * xcoffread.c (read_xcoff_symtab): Rename inner "symbol". * varobj.c (varobj_update): Rename inner "newobj", "type_changed". * valprint.c (generic_emit_char): Rename inner "buf". * valops.c (find_overload_match): Rename inner "temp". (value_struct_elt_for_reference): Declare "v" in more inner scope. * v850-tdep.c (v850_push_dummy_call): Rename "len". * unittests/array-view-selftests.c (run_tests): Rename inner "vec". * tui/tui-stack.c (tui_show_frame_info): Declare "i" in loop header. * tracepoint.c (merge_uploaded_trace_state_variables): Declare "tsv" in more inner scope. (print_one_static_tracepoint_marker): Rename inner "tuple_emitter". * tic6x-tdep.c (tic6x_analyze_prologue): Declare "inst" lower. (tic6x_push_dummy_call): Don't redeclare "addr". * target-float.c: Declare "dto" lower. * symtab.c (lookup_local_symbol): Rename inner "sym". (find_pc_sect_line): Rename inner "pc". * stack.c (print_frame): Don't redeclare "gdbarch". (return_command): Rename inner "gdbarch". * s390-tdep.c (s390_prologue_frame_unwind_cache): Renam inner "sp". * rust-lang.c (rust_internal_print_type): Declare "i" in loop header. * rs6000-tdep.c (ppc_process_record): Rename inner "addr". * riscv-tdep.c (riscv_push_dummy_call): Declare "info" in inner scope. * remote.c (remote_target::update_thread_list): Don't redeclare "tp". (remote_target::process_initial_stop_replies): Rename inner "thread". (remote_target::remote_parse_stop_reply): Don't redeclare "p". (remote_target::wait_as): Don't redeclare "stop_reply". (remote_target::get_thread_local_address): Rename inner "result". (remote_target::get_tib_address): Likewise. |
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Tom Tromey
|
cb5248409d |
Make save_infcall_*_state return unique pointers
Simon pointed out that save_infcall_suspend_state and save_infcall_control_state could return unique pointers. This patch implements this idea. gdb/ChangeLog 2018-09-17 Tom Tromey <tom@tromey.com> * infrun.c (save_infcall_suspend_state): Return infcall_suspend_state_up. (save_infcall_control_state): Return infcall_control_state_up. * inferior.h (save_infcall_suspend_state) (save_infcall_control_state): Declare later. Return unique pointers. |
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Tom Tromey
|
2d844eaf9c |
Remove release_stop_context_cleanup
This removes release_stop_context_cleanup, replacing it with a stop_context destructor. It also mildly c++-ifies this struct. gdb/ChangeLog 2018-09-17 Tom Tromey <tom@tromey.com> * infrun.c (struct stop_context): Declare constructor, destructor, "changed" method. (stop_context::stop_context): Rename from save_stop_context. (stop_context::~stop_context): Rename from release_stop_context_cleanup. (normal_stop): Update. (stop_context::changed): Rename from stop_context_changed. Return bool. |
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Tom Tromey
|
c7c4d3fa80 |
Remove two infrun cleanups
This removes a couple of cleanups from infrun by introducing a couple of unique_ptr specializations. gdb/ChangeLog 2018-09-17 Tom Tromey <tom@tromey.com> * inferior.h (struct infcall_suspend_state_deleter): New. (infcall_suspend_state_up): New typedef. (struct infcall_control_state_deleter): New. (infcall_control_state_up): New typedef. (make_cleanup_restore_infcall_suspend_state) (make_cleanup_restore_infcall_control_state): Don't declare. * infcall.c (call_function_by_hand_dummy): Update. * infrun.c (do_restore_infcall_suspend_state_cleanup) (make_cleanup_restore_infcall_suspend_state): Remove. (do_restore_infcall_control_state_cleanup) (make_cleanup_restore_infcall_control_state): Remove. |
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|
Tom Tromey
|
ee841dd8fe |
Use new and delete for struct infcall_control_state
This changes infrun.c to use new and delete for infcall_control_state. gdb/ChangeLog 2018-09-17 Tom Tromey <tom@tromey.com> * gdbthread.h (struct thread_control_state): Add initializer. (class thread_info) <control>: Remove initializer. * inferior.h (struct inferior_control_state): Add initializer. (class inferior) <control>: Remove initializer. (exit_inferior_1): Update. * infrun.c (struct infcall_control_state): Add constructors. (save_infcall_control_state): Use new. (restore_infcall_control_state, discard_infcall_control_state): Use delete. |
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|
Tom Tromey
|
117f580a97 |
Remove cleanup from infrun.c
This removes a cleanup from infrun.c by taking advantage of the previous patch to introduce a use of unique_xmalloc_ptr. gdb/ChangeLog 2018-09-17 Tom Tromey <tom@tromey.com> * infrun.c (struct infcall_suspend_state) <registers>: Now a unique_ptr. <siginfo_data>: Now a unique_xmalloc_ptr. (save_infcall_suspend_state, restore_infcall_suspend_state) (discard_infcall_suspend_state) (get_infcall_suspend_state_regcache): Update. |
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|
Tom Tromey
|
dd848631cb |
Use new and delete for struct infcall_suspend_state
This changes infrun.c to use new and delete for infcall_suspend_state. This enables the coming cleanups. gdb/ChangeLog 2018-09-17 Tom Tromey <tom@tromey.com> * gdbthread.h (struct thread_suspend_state): Add initializers. (class thread_info) <suspend>: Remove initializer. * infrun.c (struct infcall_suspend_state): Add initializers. (save_infcall_suspend_state): Use new. (discard_infcall_suspend_state): Use delete. |
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Kevin Buettner
|
59adbf5d03 |
Introduce find_function_entry_range_from_pc and use it in infrun.c
An earlier version of this patch used the returned block in conjunction with BLOCK_ENTRY_PC to set stop_func_start in fill_in_stop_func() in infrun.c. While I think this was the correct thing to do, changes to find_inferior_partial_function could potentially end up with stop_func_end < stop_func_start, which is definitely wrong. For this case, we want to set both stop_func_start and stop_func_end to the start and end of the range containing the function's entry pc. I think that this functionality will be useful in many other places too - it probably ought to be used in all of the various prologue analyzers in GDB. The change to infrun.c was simple: the call to find_pc_partial_function was replaced with a call to find_function_entry_range_from_pc. The difference between these two functions is that find_pc_partial_entry_function will (potentially) return the start and end address corresponding to the range in which PC is found, but find_function_entry_range_from_pc will (again, potentially) return the start and end address of the range containing the entry pc. find_pc_partial_function has the property that *ADDRESS <= PC < *ENDADDR. This condition does not necessarily hold for the outputs of find_function_entry_range_from_pc. It should be noted that for functions which contain only a single range, the outputs of find_pc_partial_function and find_function_entry_range_from_pc are identical. I think it might happen that find_function_entry_range_from_pc will come to be used in place of many of the calls to find_pc_partial_function within GDB. Care must be taken in making this change, however, since some of this code depends on the *ADDRESS <= PC < *ENDADDR property. Finally, a note regarding the name: I had initially chosen a different name with a find_pc_partial_ prefix, but Simon suggested the current name citing the goal of eventually making naming consistent using the form find_X_from_Y. In this case X is "function_entry_range" and Y is "pc". Both the name and rationale made sense to me, so that's how it came to be. gdb/ChangeLog: * infrun.c (fill_in_stop_func): Use find_function_entry_range_from_pc in place of find_pc_partial_function. * blockframe.c (find_function_entry_range_from_pc): New function. * symtab.h (find_function_entry_range_from_pc): Declare and document. |
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|
Andrew Burgess
|
aff4e1751f |
gdb: Make infrun.c:resume function static
Make the infrun.c:resume function static, and update the header comment on the infrun.c:proceed function. There should be no user visible change after this commit. gdb/ChangeLog: * infrun.c (resume): Make static, add forward declaration. (proceed): Update header comment. * infrun.h (resume): Delete declaration. |
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|
Tom Tromey
|
8d49165d83 |
Simple unused variable removals
This patch holds all the straightforward unused variable deletions. gdb/ChangeLog 2018-07-22 Tom Tromey <tom@tromey.com> * guile/scm-value.c (gdbscm_value_call): Remove unused variables. * guile/scm-math.c (vlscm_unop_gdbthrow, vlscm_binop_gdbthrow) (vlscm_convert_typed_value_from_scheme): Remove unused variable. * buildsym-legacy.c (get_macro_table): Remove unused variable. * stack.c (frame_apply_level_command): Remove unused variable. * tic6x-tdep.c (tic6x_push_dummy_call): Remove unused variable. * sparc64-tdep.c (adi_examine_command): Remove unused variable. * rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Remove unused variable. * nios2-tdep.c (nios2_push_dummy_call): Remove unused variable. * mep-tdep.c (mep_push_dummy_call): Remove unused variable. * ada-lang.c (ada_lookup_symbol_list_worker): Remove unused variable. * amd64-tdep.c (amd64_supply_xsave): Remove unused variable. * arm-tdep.c (arm_record_data_proc_misc_ld_str): Remove unused variable. * breakpoint.c (check_no_tracepoint_commands, update_watchpoint): Remove unused variable. * cli/cli-script.c (recurse_read_control_structure): Remove unused variable. * common/tdesc.c (print_xml_feature::visit): Remove unused variable. * compile/compile-object-load.c (store_regs): Remove unused variables. * complaints.c (clear_complaints): Remove unused variable. * corelow.c (core_target_open): Remove unused variable. * fbsd-tdep.c (fbsd_core_info_proc_status): Remove unused variable. * guile/scm-frame.c (gdbscm_frame_read_var): Remove unused variable. * guile/scm-symtab.c (stscm_print_sal_smob): Remove unused variable. * guile/scm-type.c (gdbscm_field_baseclass_p): Remove unused variable. * guile/scm-utils.c (gdbscm_parse_function_args): Remove unused variable. * hppa-tdep.c (hppa_stub_frame_unwind_cache): Remove unused variable. * ia64-tdep.c (examine_prologue): Remove unused variable. * infcall.c (run_inferior_call): Remove unused variable. * inferior.c (exit_inferior): Remove unused variable. * infrun.c (infrun_thread_ptid_changed): Remove unused variable. * linespec.c (decode_line_2): Remove unused variable. * linux-nat.c (super_close): Remove. * linux-tdep.c (linux_info_proc): Remove unused variable. * mi/mi-main.c (mi_execute_command): Remove unused variable. * microblaze-linux-tdep.c (microblaze_linux_sigtramp_cache): Remove unused variable. * parse.c (find_minsym_type_and_address): Remove unused variable. * printcmd.c (info_symbol_command, printf_floating): Remove unused variable. * python/py-breakpoint.c (bppy_set_commands): Remove unused variable. * python/py-unwind.c (unwind_infopy_dealloc): Remove unused variables. * record-btrace.c (record_btrace_target::store_registers): Remove unused variable. (cmd_show_record_btrace_cpu): Remove unused variable. * riscv-tdep.c (riscv_register_reggroup_p) (riscv_push_dummy_call, riscv_return_value): Remove unused variable. * rust-exp.y (literal): Remove unused variable. * rust-lang.c (rust_evaluate_subexp) <OP_RUST_ARARAY>: Remove unused variable. <STRUCTOP_ANONYMOUS>: Likewise. * s390-linux-tdep.c (s390_linux_init_abi_31) (s390_linux_init_abi_64): Remove unused variable. * ser-ming2.c (ser_windows_read_prim, pipe_select_thread) (file_select_thread, net_windows_open, _initialize_ser_windows): Remove unused variables. * symtab.c (find_pc_sect_line): Remove unused variable. * target-memory.c (compute_garbled_blocks): Remove unused variable. (target_write_memory_blocks): Remove unused variable. * target.c (target_stack::unpush): Remove unused variables. * tracepoint.c (start_tracing, all_tracepoint_actions) (merge_uploaded_trace_state_variables) (print_one_static_tracepoint_marker): Remove unused variable. * unittests/basic_string_view/element_access/char/1.cc (test01): Remove unused variable. * windows-nat.c (windows_continue, windows_add_all_dlls) (do_initial_windows_stuff, windows_nat_target::create_inferior): Remove unused variables. |
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|
Tom Tromey
|
d7e15655a4 |
Remove ptid_equal
Remove ptid_equal in favor of using "==". gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_equal): Remove. * common/ptid.h (ptid_equal): Don't declare. * ada-tasks.c: Update. * breakpoint.c: Update. * common/agent.c: Update. * corelow.c: Update. * darwin-nat-info.c: Update. * darwin-nat.c: Update. * dcache.c: Update. * dtrace-probe.c: Update. * dummy-frame.c: Update. * fbsd-nat.c: Update. * frame.c: Update. * gdbthread.h: Update. * gnu-nat.c: Update. * go32-nat.c: Update. * inf-loop.c: Update. * inf-ptrace.c: Update. * infcall.c: Update. * infcmd.c: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-thread-db.c: Update. * mi/mi-cmd-var.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * nto-procfs.c: Update. * ppc-linux-tdep.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-record-btrace.c: Update. * python/py-record.c: Update. * ravenscar-thread.c: Update. * regcache.c: Update. * remote-sim.c: Update. * remote.c: Update. * sol-thread.c: Update. * solib.c: Update. * target.c: Update. * tui/tui-stack.c: Update. * varobj.c: Update. * windows-nat.c: Update. * windows-tdep.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * win32-low.c: Update. |
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|
Tom Tromey
|
26a57c9256 |
Remove ptid_match
This removes ptid_match in favor of the ptid_t::matches method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_match): Remove. * common/ptid.h (ptid_match): Don't declare. * fbsd-nat.c: Update. * infcmd.c: Update. * infrun.c: Update. * linux-nat.c: Update. * record-btrace.c: Update. * regcache.c: Update. * remote.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * server.c: Update. |
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|
Tom Tromey
|
0e998d966b |
Remove ptid_is_pid
This removes ptid_is_pid in favor of the ptid_t::is_pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_is_pid): Remove. * common/ptid.h (ptid_is_pid): Don't declare. * infrun.c: Update. * linux-nat.c: Update. * mi/mi-interp.c: Update. * remote.c: Update. * thread.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. |
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|
Tom Tromey
|
cc6bcb548d |
Remove ptid_get_tid
This removes ptid_get_tid in favor of calling the ptid_t::tid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_tid): Remove. * common/ptid.h (ptid_get_tid): Don't declare. * ada-tasks.c: Update. * aix-thread.c: Update. * bsd-uthread.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * i386-darwin-nat.c: Update. * infrun.c: Update. * linux-tdep.c: Update. * nto-procfs.c: Update. * ppc-ravenscar-thread.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * sol-thread.c: Update. * sparc-ravenscar-thread.c: Update. * windows-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * target.c: Update. |
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Tom Tromey
|
e38504b392 |
Remove ptid_get_lwp
This removes ptid_get_lwp in favor of calling the ptid_t::lwp method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_lwp): Remove. * common/ptid.h (ptid_get_lwp): Don't declare. * aarch64-linux-nat.c: Update. * ada-tasks.c: Update. * aix-thread.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * corelow.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gnu-nat.c: Update. * i386-cygwin-tdep.c: Update. * i386-gnu-nat.c: Update. * i386-linux-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * mips-linux-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * obsd-nat.c: Update. * ppc-fbsd-nat.c: Update. * ppc-linux-nat.c: Update. * procfs.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * remote.c: Update. * s390-linux-nat.c: Update. * sol-thread.c: Update. * sol2-tdep.c: Update. * spu-linux-nat.c: Update. * x86-linux-nat.c: Update. * xtensa-linux-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * thread-db.c: Update. |
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Tom Tromey
|
e99b03dcf4 |
Remove ptid_get_pid
This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update. |
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Tom Tromey
|
f2907e4991 |
Remove pid_to_ptid
This removes pid_to_ptid in favor of calling the ptid_t constructor directly. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (pid_to_ptid): Remove. * common/ptid.h (pid_to_ptid): Don't declare. * aix-thread.c: Update. * arm-linux-nat.c: Update. * common/ptid.c: Update. * common/ptid.h: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fork-child.c: Update. * gnu-nat.c: Update. * go32-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/fork-inferior.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * procfs.c: Update. * progspace.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sol-thread.c: Update. * spu-linux-nat.c: Update. * target.c: Update. * top.c: Update. * tracefile-tfile.c: Update. * windows-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-ppc-low.c: Update. * linux-x86-low.c: Update. * proc-service.c: Update. * server.c: Update. * spu-low.c: Update. * thread-db.c: Update. * win32-low.c: Update. |
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Tom Tromey
|
057302ceb3 |
Remove exit_inferior_num_silent
The sole caller of exit_inferior_num_silent was getting the inferior's number to then use the number to look up the inferior again. I think it's better to simply not have exit_inferior_num_silent; any potential callers that only have the inferior's number should probably be converted to pass the inferior itself around instead. Tested by the buildbot. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * infrun.c (follow_exec): Use exit_inferior_silent. * inferior.c (exit_inferior_num_silent): Remove. * inferior.h (exit_inferior_num_silent): Don't declare. |
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Pedro Alves
|
f2ffa92bbc |
gdb: Eliminate the 'stop_pc' global
In my multi-target work, I need to add a few more scoped_restore_current_thread and switch_to_thread calls in some places, and in some lower-level places I was fighting against the fact that switch_to_thread reads/refreshes the stop_pc global. Instead of piling on workarounds, let's just finally eliminate the stop_pc global. We already have the per-thread thread_info->suspend.stop_pc field, so it's mainly a matter of using that more/instead. gdb/ChangeLog: 2018-06-28 Pedro Alves <palves@redhat.com> * gdbthread.h (struct thread_suspend_state) <stop_pc>: Extend comments. (switch_to_thread_no_regs): Adjust comment. * infcmd.c (stop_pc): Delete. (post_create_inferior, info_program_command): Replace references to stop_pc with references to thread_info->suspend.stop_pc. * inferior.h (stop_pc): Delete declaration. * infrun.c (proceed, handle_syscall_event, fill_in_stop_func) (handle_inferior_event_1, handle_signal_stop) (process_event_stop_test, keep_going_stepped_thread) (handle_step_into_function, handle_step_into_function_backward) (print_stop_location): Replace references to stop_pc with references to thread_info->suspend.stop_pc. (struct infcall_suspend_state) <stop_pc>: Delete field. (save_infcall_suspend_state, restore_infcall_suspend_state): Remove references to inf_stat->stop_pc. * linux-fork.c (fork_load_infrun_state): Likewise. * record-btrace.c (record_btrace_set_replay): Likewise. * record-full.c (record_full_goto_entry): Likewise. * remote.c (print_one_stopped_thread): Likewise. * target.c (target_resume): Extend comment. * thread.c (set_executing_thread): New. (set_executing): Use it. (switch_to_thread_no_regs, switch_to_no_thread, switch_to_thread): Remove references to stop_pc. |
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Pedro Alves
|
ecdc3a72c8 |
Fix follow-exec regression / crash
After commit |
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Pedro Alves
|
00431a78b2 |
Use thread_info and inferior pointers more throughout
This is more preparation bits for multi-target support. In a multi-target scenario, we need to address the case of different processes/threads running on different targets that happen to have the same PID/PTID. E.g., we can have both process 123 in target 1, and process 123 in target 2, while they're in reality different processes running on different machines. Or maybe we've loaded multiple instances of the same core file. Etc. To address this, in my WIP multi-target branch, threads and processes are uniquely identified by the (process_stratum target_ops *, ptid_t) and (process_stratum target_ops *, pid) tuples respectively. I.e., each process_stratum instance has its own thread/process number space. As you can imagine, that requires passing around target_ops * pointers in a number of functions where we're currently passing only a ptid_t or an int. E.g., when we look up a thread_info object by ptid_t in find_thread_ptid, the ptid_t alone isn't sufficient. In many cases though, we already have the thread_info or inferior pointer handy, but we "lose" it somewhere along the call stack, only to look it up again by ptid_t/pid. Since thread_info or inferior objects know their parent target, if we pass around thread_info or inferior pointers when possible, we avoid having to add extra target_ops parameters to many functions, and also, we eliminate a number of by ptid_t/int lookups. So that's what this patch does. In a bit more detail: - Changes a number of functions and methods to take a thread_info or inferior pointer instead of a ptid_t or int parameter. - Changes a number of structure fields from ptid_t/int to inferior or thread_info pointers. - Uses the inferior_thread() function whenever possible instead of inferior_ptid. - Uses thread_info pointers directly when possible instead of the is_running/is_stopped etc. routines that require a lookup. - A number of functions are eliminated along the way, such as: int valid_gdb_inferior_id (int num); int pid_to_gdb_inferior_id (int pid); int gdb_inferior_id_to_pid (int num); int in_inferior_list (int pid); - A few structures and places hold a thread_info pointer across inferior execution, so now they take a strong reference to the (refcounted) thread_info object to avoid the thread_info pointer getting stale. This is done in enable_thread_stack_temporaries and in the infcall.c code. - Related, there's a spot in infcall.c where using a RAII object to handle the refcount would be handy, so a gdb::ref_ptr specialization for thread_info is added (thread_info_ref, in gdbthread.h), along with a gdb_ref_ptr policy that works for all refcounted_object types (in common/refcounted-object.h). gdb/ChangeLog: 2018-06-21 Pedro Alves <palves@redhat.com> * ada-lang.h (ada_get_task_number): Take a thread_info pointer instead of a ptid_t. All callers adjusted. * ada-tasks.c (ada_get_task_number): Likewise. All callers adjusted. (print_ada_task_info, display_current_task_id, task_command_1): Adjust. * breakpoint.c (watchpoint_in_thread_scope): Adjust to use inferior_thread. (breakpoint_kind): Adjust. (remove_breakpoints_pid): Rename to ... (remove_breakpoints_inf): ... this. Adjust to take an inferior pointer. All callers adjusted. (bpstat_clear_actions): Use inferior_thread. (get_bpstat_thread): New. (bpstat_do_actions): Use it. (bpstat_check_breakpoint_conditions, bpstat_stop_status): Adjust to take a thread_info pointer. All callers adjusted. (set_longjmp_breakpoint_for_call_dummy, set_momentary_breakpoint) (breakpoint_re_set_thread): Use inferior_thread. * breakpoint.h (struct inferior): Forward declare. (bpstat_stop_status): Update. (remove_breakpoints_pid): Delete. (remove_breakpoints_inf): New. * bsd-uthread.c (bsd_uthread_target::wait) (bsd_uthread_target::update_thread_list): Use find_thread_ptid. * btrace.c (btrace_add_pc, btrace_enable, btrace_fetch) (maint_btrace_packet_history_cmd) (maint_btrace_clear_packet_history_cmd): Adjust. (maint_btrace_clear_cmd, maint_info_btrace_cmd): Adjust to use inferior_thread. * cli/cli-interp.c: Include "inferior.h". * common/refcounted-object.h (struct refcounted_object_ref_policy): New. * compile/compile-object-load.c: Include gdbthread.h. (store_regs): Use inferior_thread. * corelow.c (core_target::close): Use current_inferior. (core_target_open): Adjust to use first_thread_of_inferior and use the current inferior. * ctf.c (ctf_target::close): Adjust to use current_inferior. * dummy-frame.c (dummy_frame_id) <ptid>: Delete, replaced by ... <thread>: ... this new field. All references adjusted. (dummy_frame_pop, dummy_frame_discard, register_dummy_frame_dtor): Take a thread_info pointer instead of a ptid_t. * dummy-frame.h (dummy_frame_push, dummy_frame_pop) (dummy_frame_discard, register_dummy_frame_dtor): Take a thread_info pointer instead of a ptid_t. * elfread.c: Include "inferior.h". (elf_gnu_ifunc_resolver_stop, elf_gnu_ifunc_resolver_return_stop): Use inferior_thread. * eval.c (evaluate_subexp): Likewise. * frame.c (frame_pop, has_stack_frames, find_frame_sal): Use inferior_thread. * gdb_proc_service.h (struct thread_info): Forward declare. (struct ps_prochandle) <ptid>: Delete, replaced by ... <thread>: ... this new field. All references adjusted. * gdbarch.h, gdbarch.c: Regenerate. * gdbarch.sh (get_syscall_number): Replace 'ptid' parameter with a 'thread' parameter. All implementations and callers adjusted. * gdbthread.h (thread_info) <set_running>: New method. (delete_thread, delete_thread_silent): Take a thread_info pointer instead of a ptid. (global_thread_id_to_ptid, ptid_to_global_thread_id): Delete. (first_thread_of_process): Delete, replaced by ... (first_thread_of_inferior): ... this new function. All callers adjusted. (any_live_thread_of_process): Delete, replaced by ... (any_live_thread_of_inferior): ... this new function. All callers adjusted. (switch_to_thread, switch_to_no_thread): Declare. (is_executing): Delete. (enable_thread_stack_temporaries): Update comment. <enable_thread_stack_temporaries>: Take a thread_info pointer instead of a ptid_t. Incref the thread. <~enable_thread_stack_temporaries>: Decref the thread. <m_ptid>: Delete <m_thr>: New. (thread_stack_temporaries_enabled_p, push_thread_stack_temporary) (get_last_thread_stack_temporary) (value_in_thread_stack_temporaries, can_access_registers_thread): Take a thread_info pointer instead of a ptid_t. All callers adjusted. * infcall.c (get_call_return_value): Use inferior_thread. (run_inferior_call): Work with thread pointers instead of ptid_t. (call_function_by_hand_dummy): Work with thread pointers instead of ptid_t. Use thread_info_ref. * infcmd.c (proceed_thread_callback): Access thread's state directly. (ensure_valid_thread, ensure_not_running): Use inferior_thread, access thread's state directly. (continue_command): Use inferior_thread. (info_program_command): Use find_thread_ptid and access thread state directly. (proceed_after_attach_callback): Use thread state directly. (notice_new_inferior): Take a thread_info pointer instead of a ptid_t. All callers adjusted. (exit_inferior): Take an inferior pointer instead of a pid. All callers adjusted. (exit_inferior_silent): New. (detach_inferior): Delete. (valid_gdb_inferior_id, pid_to_gdb_inferior_id) (gdb_inferior_id_to_pid, in_inferior_list): Delete. (detach_inferior_command, kill_inferior_command): Use find_inferior_id instead of valid_gdb_inferior_id and gdb_inferior_id_to_pid. (inferior_command): Use inferior and thread pointers. * inferior.h (struct thread_info): Forward declare. (notice_new_inferior): Take a thread_info pointer instead of a ptid_t. All callers adjusted. (detach_inferior): Delete declaration. (exit_inferior, exit_inferior_silent): Take an inferior pointer instead of a pid. All callers adjusted. (gdb_inferior_id_to_pid, pid_to_gdb_inferior_id, in_inferior_list) (valid_gdb_inferior_id): Delete. * infrun.c (follow_fork_inferior, proceed_after_vfork_done) (handle_vfork_child_exec_or_exit, follow_exec): Adjust. (struct displaced_step_inferior_state) <pid>: Delete, replaced by ... <inf>: ... this new field. <step_ptid>: Delete, replaced by ... <step_thread>: ... this new field. (get_displaced_stepping_state): Take an inferior pointer instead of a pid. All callers adjusted. (displaced_step_in_progress_any_inferior): Adjust. (displaced_step_in_progress_thread): Take a thread pointer instead of a ptid_t. All callers adjusted. (displaced_step_in_progress, add_displaced_stepping_state): Take an inferior pointer instead of a pid. All callers adjusted. (get_displaced_step_closure_by_addr): Adjust. (remove_displaced_stepping_state): Take an inferior pointer instead of a pid. All callers adjusted. (displaced_step_prepare_throw, displaced_step_prepare) (displaced_step_fixup): Take a thread pointer instead of a ptid_t. All callers adjusted. (start_step_over): Adjust. (infrun_thread_ptid_changed): Remove bit updating ptids in the displaced step queue. (do_target_resume): Adjust. (fetch_inferior_event): Use inferior_thread. (context_switch, get_inferior_stop_soon): Take an execution_control_state pointer instead of a ptid_t. All callers adjusted. (switch_to_thread_cleanup): Delete. (stop_all_threads): Use scoped_restore_current_thread. * inline-frame.c: Include "gdbthread.h". (inline_state) <inline_state>: Take a thread pointer instead of a ptid_t. All callers adjusted. <ptid>: Delete, replaced by ... <thread>: ... this new field. (find_inline_frame_state): Take a thread pointer instead of a ptid_t. All callers adjusted. (skip_inline_frames, step_into_inline_frame) (inline_skipped_frames, inline_skipped_symbol): Take a thread pointer instead of a ptid_t. All callers adjusted. * inline-frame.h (skip_inline_frames, step_into_inline_frame) (inline_skipped_frames, inline_skipped_symbol): Likewise. * linux-fork.c (delete_checkpoint_command): Adjust to use thread pointers directly. * linux-nat.c (get_detach_signal): Likewise. * linux-thread-db.c (thread_from_lwp): New 'stopped' parameter. (thread_db_notice_clone): Adjust. (thread_db_find_new_threads_silently) (thread_db_find_new_threads_2, thread_db_find_new_threads_1): Take a thread pointer instead of a ptid_t. All callers adjusted. * mi/mi-cmd-var.c: Include "inferior.h". (mi_cmd_var_update_iter): Update to use thread pointers. * mi/mi-interp.c (mi_new_thread): Update to use the thread's inferior directly. (mi_output_running_pid, mi_inferior_count): Delete, bits factored out to ... (mi_output_running): ... this new function. (mi_on_resume_1): Adjust to use it. (mi_user_selected_context_changed): Adjust to use inferior_thread. * mi/mi-main.c (proceed_thread): Adjust to use thread pointers directly. (interrupt_thread_callback): : Adjust to use thread and inferior pointers. * proc-service.c: Include "gdbthread.h". (ps_pglobal_lookup): Adjust to use the thread's inferior directly. * progspace-and-thread.c: Include "inferior.h". * progspace.c: Include "inferior.h". * python/py-exitedevent.c (create_exited_event_object): Adjust to hold a reference to an inferior_object. * python/py-finishbreakpoint.c (bpfinishpy_init): Adjust to use inferior_thread. * python/py-inferior.c (struct inferior_object): Give the type a tag name instead of a typedef. (python_on_normal_stop): No need to check if the current thread is listed. (inferior_to_inferior_object): Change return type to inferior_object. All callers adjusted. (find_thread_object): Delete, bits factored out to ... (thread_to_thread_object): ... this new function. * python/py-infthread.c (create_thread_object): Use inferior_to_inferior_object. (thpy_is_stopped): Use thread pointer directly. (gdbpy_selected_thread): Use inferior_thread. * python/py-record-btrace.c (btpy_list_object) <ptid>: Delete field, replaced with ... <thread>: ... this new field. All users adjusted. (btpy_insn_or_gap_new): Drop const. (btpy_list_new): Take a thread pointer instead of a ptid_t. All callers adjusted. * python/py-record.c: Include "gdbthread.h". (recpy_insn_new, recpy_func_new): Take a thread pointer instead of a ptid_t. All callers adjusted. (gdbpy_current_recording): Use inferior_thread. * python/py-record.h (recpy_record_object) <ptid>: Delete field, replaced with ... <thread>: ... this new field. All users adjusted. (recpy_element_object) <ptid>: Delete field, replaced with ... <thread>: ... this new field. All users adjusted. (recpy_insn_new, recpy_func_new): Take a thread pointer instead of a ptid_t. All callers adjusted. * python/py-threadevent.c: Include "gdbthread.h". (get_event_thread): Use thread_to_thread_object. * python/python-internal.h (struct inferior_object): Forward declare. (find_thread_object, find_inferior_object): Delete declarations. (thread_to_thread_object, inferior_to_inferior_object): New declarations. * record-btrace.c: Include "inferior.h". (require_btrace_thread): Use inferior_thread. (record_btrace_frame_sniffer) (record_btrace_tailcall_frame_sniffer): Use inferior_thread. (get_thread_current_frame): Use scoped_restore_current_thread and switch_to_thread. (get_thread_current_frame): Use thread pointer directly. (record_btrace_replay_at_breakpoint): Use thread's inferior pointer directly. * record-full.c: Include "inferior.h". * regcache.c: Include "gdbthread.h". (get_thread_arch_regcache): Use the inferior's address space directly. (get_thread_regcache, registers_changed_thread): New. * regcache.h (get_thread_regcache(thread_info *thread)): New overload. (registers_changed_thread): New. (remote_target) <remote_detach_1>: Swap order of parameters. (remote_add_thread): <remote_add_thread>: Return the new thread. (get_remote_thread_info(ptid_t)): New overload. (remote_target::remote_notice_new_inferior): Use thread pointers directly. (remote_target::process_initial_stop_replies): Use thread_info::set_running. (remote_target::remote_detach_1, remote_target::detach) (extended_remote_target::detach): Adjust. * stack.c (frame_show_address): Use inferior_thread. * target-debug.h (target_debug_print_thread_info_pp): New. * target-delegates.c: Regenerate. * target.c (default_thread_address_space): Delete. (memory_xfer_partial_1): Use current_inferior. (target_detach): Use current_inferior. (target_thread_address_space): Delete. (generic_mourn_inferior): Use current_inferior. * target.h (struct target_ops) <thread_address_space>: Delete. (target_thread_address_space): Delete. * thread.c (init_thread_list): Use ALL_THREADS_SAFE. Use thread pointers directly. (delete_thread_1, delete_thread, delete_thread_silent): Take a thread pointer instead of a ptid_t. Adjust all callers. (ptid_to_global_thread_id, global_thread_id_to_ptid): Delete. (first_thread_of_process): Delete, replaced by ... (first_thread_of_inferior): ... this new function. All callers adjusted. (any_thread_of_process): Rename to ... (any_thread_of_inferior): ... this, and take an inferior pointer. (any_live_thread_of_process): Rename to ... (any_live_thread_of_inferior): ... this, and take an inferior pointer. (thread_stack_temporaries_enabled_p, push_thread_stack_temporary) (value_in_thread_stack_temporaries) (get_last_thread_stack_temporary): Take a thread pointer instead of a ptid_t. Adjust all callers. (thread_info::set_running): New. (validate_registers_access): Use inferior_thread. (can_access_registers_ptid): Rename to ... (can_access_registers_thread): ... this, and take a thread pointer. (print_thread_info_1): Adjust to compare thread pointers instead of ptids. (switch_to_no_thread, switch_to_thread): Make extern. (scoped_restore_current_thread::~scoped_restore_current_thread): Use m_thread pointer directly. (scoped_restore_current_thread::scoped_restore_current_thread): Use inferior_thread. (thread_command): Use thread pointer directly. (thread_num_make_value_helper): Use inferior_thread. * top.c (execute_command): Use inferior_thread. * tui/tui-interp.c: Include "inferior.h". * varobj.c (varobj_create): Use inferior_thread. (value_of_root_1): Use find_thread_global_id instead of global_thread_id_to_ptid. |
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Andrew Burgess
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1840d81a20 |
gdb: Run INF_EXEC_COMPLETE handler for additional cases
When making an inferior call, and non-stop mode is off, then, once the
inferior call is complete all threads will be stopped, and we should
run the INF_EXEC_COMPLETE handler. This will result in a call to
'target_async(0)' to remove the event handlers for the target.
This was discussed by Yao Qi in this mailing list thread:
https://sourceware.org/ml/gdb/2017-10/msg00032.html
Without this then the target event handlers are left in place even
when the target is stopped, which is different to what happens during
a standard stop proceedure (for example when one thread hits a
breakpoint).
gdb/ChangeLog:
PR gdb/22882
* infrun.c (fetch_inferior_event): If GDB is not proceeding then
run INF_EXEC_COMPLETE handler, even when not calling normal_stop.
Move should_notify_stop local into more inner scope.
|
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Andrew Burgess
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9516f85aea |
gdb: Mark async event handler when event is already pending
In PR22882 inferior functions are called on different threads while
scheduler-locking is turned on. This results in a hang. This was
discussed in this mailing list thread:
https://sourceware.org/ml/gdb/2017-10/msg00032.html
The problem is that when the thread is set running in order to execute
the inferior call, a call to target_async is made. If the target is
not already registered as 'target_async' then this will install the
async event handler, AND unconditionally mark the handler as having an
event pending.
However, if the target is already registered as target_async then the
event handler is not installed (its already installed) and the
handler is NOT marked as having an event pending.
If we try to set running a thread that already has a pending event,
then we do want to set target_async, however, there will not be an
external event incoming (the thread is already stopped) so we rely on
manually marking the event handler as having a pending event in order
to see the threads pending stop event. This is fine, if, at the point
where we call target_async, the target is not already marked as async.
But, if it is, then the event handler will not be marked as ready, and
the threads pending stop event will never be processed.
A similar pattern of code can be seen in linux_nat_target::resume,
where, when a thread has a pending event, the call to target_async is
followed by a call to async_file_mark to ensure that the pending
thread event will be processed, even if target_async was already set.
gdb/ChangeLog:
PR gdb/22882
* infrun.c (resume_1): Add call to mark_async_event_handler.
gdb/testsuite/ChangeLog:
* gdb.threads/multiple-successive-infcall.exp: Remove kfail case,
rewrite test to describe action performed, rather than possible
failure.
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Andrew Burgess
|
defd21729f |
gdb: Fix an infrun debug log message
Run the test gdb.threads/multiple-successive-infcall.exp by hand, if you turn on 'debug infrun 1', you'll see that the debug line fixed in this commit is printed and contains the wrong $pc value. Fixed in this commit. gdb/ChangeLog: * infrun.c (do_target_wait): Change old version of $pc printed. |
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Pedro Alves
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8b88a78e63 |
target_stack -> current_top_target() throughout
The recent C++ification of target_ops replaced references to the old "current_target" squashed target throughout with references to a "target_stack" pointer. I had picked the "target_stack" name very early in the multi-target work, and managed to stick with it, even though it's a bit of a misnomer, since it isn't really a "target stack" object, but a pointer into the current top target in the stack. As I'm splitting more pieces off of the multi-target branch, I've come to think that it's better to rename it now. A following patch will introduce a new class to represent a target stack, and "target_stack" would be _its_ ideal name. (In the branch, the class is called a_target_stack to work around the clash.) Thus this commit renames target_stack to current_top_target and replaces all references throughout. Also, while at it, current_top_target is made a function instead of a pointer, to make it possible to change its internal implementation without leaking implementation details out. In a couple patches, the implementation of the function will change to refer to a target stack object, and then further down the multi-target work, it'll change again to find the right target stack for the current inferior. gdb/ChangeLog: 2018-06-07 Pedro Alves <palves@redhat.com> * target.h (target_stack): Delete. (current_top_target): Declare function. * target.c (target_stack): Delete. (g_current_top_target): New. (current_top_target): New function. * auxv.c: Use current_top_target instead of target_stack throughout. * avr-tdep.c: Likewise. * breakpoint.c: Likewise. * corefile.c: Likewise. * elfread.c: Likewise. * eval.c: Likewise. * exceptions.c: Likewise. * frame.c: Likewise. * gdbarch-selftests.c: Likewise. * gnu-v3-abi.c: Likewise. * ia64-tdep.c: Likewise. * ia64-vms-tdep.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * infrun.c: Likewise. * linespec.c: Likewise. * linux-tdep.c: Likewise. * minsyms.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-linux-tdep.c: Likewise. * procfs.c: Likewise. * regcache.c: Likewise. * remote.c: Likewise. * rs6000-tdep.c: Likewise. * s390-linux-nat.c: Likewise. * s390-tdep.c: Likewise. * solib-aix.c: Likewise. * solib-darwin.c: Likewise. * solib-dsbt.c: Likewise. * solib-spu.c: Likewise. * solib-svr4.c: Likewise. * solib-target.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * spu-tdep.c: Likewise. * symfile.c: Likewise. * symtab.c: Likewise. * target-descriptions.c: Likewise. * target-memory.c: Likewise. * target.c: Likewise. * target.h: Likewise. * tracefile-tfile.c: Likewise. * tracepoint.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * value.c: Likewise. * windows-tdep.c: Likewise. * mi/mi-main.c: Likewise. |
||
Keith Seitz
|
ddfe970e6b |
Don't elide all inlined frames
This patch essentially causes GDB to treat inlined frames like "normal"
frames from the user's perspective. This means, for example, that when a
user sets a breakpoint in an inlined function, GDB will now actually stop
"in" that function.
Using the test case from breakpoints/17534,
3 static inline void NVIC_EnableIRQ(int IRQn)
4 {
5 volatile int y;
6 y = IRQn;
7 }
8
9 __attribute__( ( always_inline ) ) static inline void __WFI(void)
10 {
11 __asm volatile ("nop");
12 }
13
14 int main(void) {
15
16 x= 42;
17
18 if (x)
19 NVIC_EnableIRQ(16);
20 else
21 NVIC_EnableIRQ(18);
(gdb) b NVIC_EnableIRQ
Breakpoint 1 at 0x4003e4: NVIC_EnableIRQ. (2 locations)
(gdb) r
Starting program: 17534
Breakpoint 1, main () at 17534.c:19
19 NVIC_EnableIRQ(16);
Because skip_inline_frames currently skips every inlined frame, GDB "stops"
in the caller. This patch adds a new parameter to skip_inline_frames
that allows us to pass in a bpstat stop chain. The breakpoint locations
on the stop chain can be used to determine if we've stopped inside an inline
function (due to a user breakpoint). If we have, we do not elide the frame.
With this patch, GDB now reports that the inferior has stopped inside the
inlined function:
(gdb) r
Starting program: 17534
Breakpoint 1, NVIC_EnableIRQ (IRQn=16) at 17534.c:6
6 y = IRQn;
Many thanks to Jan and Pedro for guidance on this.
gdb/ChangeLog:
* breakpoint.c (build_bpstat_chain): New function, moved from
bpstat_stop_status.
(bpstat_stop_status): Add optional parameter, `stop_chain'.
If no stop chain is passed, call build_bpstat_chain to build it.
* breakpoint.h (build_bpstat_chain): Declare.
(bpstat_stop_status): Move documentation here from breakpoint.c.
* infrun.c (handle_signal_stop): Before eliding inlined frames,
build the stop chain and pass it to skip_inline_frames.
Pass this stop chain to bpstat_stop_status.
* inline-frame.c: Include breakpoint.h.
(stopped_by_user_bp_inline_frame): New function.
(skip_inline_frames): Add parameter `stop_chain'.
Move documention to inline-frame.h.
If non-NULL, use stopped_by_user_bp_inline_frame to determine
whether the frame should be elided.
* inline-frame.h (skip_inline_frames): Add parameter `stop_chain'.
Add moved documentation and update for new parameter.
gdb/testsuite/ChangeLog:
* gdb.ada/bp_inlined_func.exp: Update inlined frame locations
in expected breakpoint stop locations.
* gdb.dwarf2/implptr.exp (implptr_test_baz): Use up/down to
move to proper scope to test variable values.
* gdb.opt/inline-break.c (inline_func1, not_inline_func1)
(inline_func2, not_inline_func2, inline_func3, not_inline_func3):
New functions.
(main): Call not_inline_func3.
* gdb.opt/inline-break.exp: Start inferior and set breakpoints at
inline_func1, inline_func2, and inline_func3. Test that when each
breakpoint is hit, GDB properly reports both the stop location
and the backtrace. Repeat tests for temporary breakpoints.
|
||
|
Pedro Alves
|
f6ac5f3d63 |
Convert struct target_ops to C++
I.e., use C++ virtual methods and inheritance instead of tables of
function pointers.
Unfortunately, there's no way to do a smooth transition. ALL native
targets in the tree must be converted at the same time. I've tested
all I could with cross compilers and with help from GCC compile farm,
but naturally I haven't been able to test many of the ports. Still, I
made a best effort to port everything over, and while I expect some
build problems due to typos and such, which should be trivial to fix,
I don't expect any design problems.
* Implementation notes:
- The flattened current_target is gone. References to current_target
or current_target.beneath are replaced with references to
target_stack (the top of the stack) directly.
- To keep "set debug target" working, this adds a new debug_stratum
layer that sits on top of the stack, prints the debug, and delegates
to the target beneath.
In addition, this makes the shortname and longname properties of
target_ops be virtual methods instead of data fields, and makes the
debug target defer those to the target beneath. This is so that
debug code sprinkled around that does "if (debugtarget) ..." can
transparently print the name of the target beneath.
A patch later in the series actually splits out the
shortname/longname methods to a separate structure, but I preferred
to keep that chance separate as it is associated with changing a bit
the design of how targets are registered and open.
- Since you can't check whether a C++ virtual method is overridden,
the old method of checking whether a target_ops implements a method
by comparing the function pointer must be replaced with something
else.
Some cases are fixed by adding a parallel "can_do_foo" target_ops
methods. E.g.,:
+ for (t = target_stack; t != NULL; t = t->beneath)
{
- if (t->to_create_inferior != NULL)
+ if (t->can_create_inferior ())
break;
}
Others are fixed by changing void return type to bool or int return
type, and have the default implementation return false or -1, to
indicate lack of support.
- make-target-delegates was adjusted to generate C++ classes and
methods.
It needed tweaks to grok "virtual" in front of the target method
name, and for the fact that methods are no longer function pointers.
(In particular, the current code parsing the return type was simple
because it could simply parse up until the '(' in '(*to_foo)'.
It now generates a couple C++ classes that inherit target_ops:
dummy_target and debug_target.
Since we need to generate the class declarations as well, i.e., we
need to emit methods twice, we now generate the code in two passes.
- The core_target global is renamed to avoid conflict with the
"core_target" class.
- ctf/tfile targets
init_tracefile_ops is replaced by a base class that is inherited by
both ctf and tfile.
- bsd-uthread
The bsd_uthread_ops_hack hack is gone. It's not needed because
nothing was extending a target created by bsd_uthread_target.
- remote/extended-remote targets
This is a first pass, just enough to C++ify target_ops.
A later pass will convert more free functions to methods, and make
remote_state be truly per remote instance, allowing multiple
simultaneous instances of remote targets.
- inf-child/"native" is converted to an actual base class
(inf_child_target), that is inherited by all native targets.
- GNU/Linux
The old weird double-target linux_ops mechanism in linux-nat.c, is
gone, replaced by adding a few virtual methods to linux-nat.h's
target_ops, called low_XXX, that the concrete linux-nat
implementations override. Sort of like gdbserver's
linux_target_ops, but simpler, for requiring only one
target_ops-like hierarchy, which spares implementing the same method
twice when we need to forward the method to a low implementation.
The low target simply reimplements the target_ops method directly in
that case.
There are a few remaining linux-nat.c hooks that would be better
converted to low_ methods like above too. E.g.:
linux_nat_set_new_thread (t, x86_linux_new_thread);
linux_nat_set_new_fork (t, x86_linux_new_fork);
linux_nat_set_forget_process
That'll be done in a follow up patch.
- We can no longer use functions like x86_use_watchpoints to install
custom methods on an arbitrary base target.
The patch replaces instances of such a pattern with template mixins.
For example memory_breakpoint_target defined in target.h, or
x86_nat_target in x86-nat.h.
- linux_trad_target, MIPS and Alpha GNU/Linux
The code in the new linux-nat-trad.h/c files which was split off of
inf-ptrace.h/c recently, is converted to a C++ base class, and used
by the MIPS and Alpha GNU/Linux ports.
- BSD targets
The
$architecture x NetBSD/OpenBSD/FreeBSD
support matrix complicates things a bit. There's common BSD target
code, and there's common architecture-specific code shared between
the different BSDs. Currently, all that is stiched together to form
a final target, via the i386bsd_target, x86bsd_target,
fbsd_nat_add_target functions etc.
This introduces new fbsd_nat_target, obsd_nat_target and
nbsd_nat_target classes that serve as base/prototype target for the
corresponding BSD variant.
And introduces generic i386/AMD64 BSD targets, to be used as
template mixin to build a final target. Similarly, a generic SPARC
target is added, used by both BSD and Linux ports.
- bsd_kvm_add_target, BSD libkvm target
I considered making bsd_kvm_supply_pcb a virtual method, and then
have each port inherit bsd_kvm_target and override that method, but
that was resulting in lots of unjustified churn, so I left the
function pointer mechanism alone.
gdb/ChangeLog:
2018-05-02 Pedro Alves <palves@redhat.com>
John Baldwin <jhb@freebsd.org>
* target.h (enum strata) <debug_stratum>: New.
(struct target_ops) <all delegation methods>: Replace by C++
virtual methods, and drop "to_" prefix. All references updated
throughout.
<to_shortname, to_longname, to_doc, to_data,
to_have_steppable_watchpoint, to_have_continuable_watchpoint,
to_has_thread_control, to_attach_no_wait>: Delete, replaced by
virtual methods. All references updated throughout.
<can_attach, supports_terminal_ours, can_create_inferior,
get_thread_control_capabilities, attach_no_wait>: New
virtual methods.
<insert_breakpoint, remove_breakpoint>: Now
TARGET_DEFAULT_NORETURN methods.
<info_proc>: Now returns bool.
<to_magic>: Delete.
(OPS_MAGIC): Delete.
(current_target): Delete. All references replaced by references
to ...
(target_stack): ... this. New.
(target_shortname, target_longname): Adjust.
(target_can_run): Now a function declaration.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Remove target_ops parameter.
(complete_target_initialization): Delete.
(memory_breakpoint_target): New template class.
(test_target_ops): Refactor as a C++ class with virtual methods.
* make-target-delegates (NAME_PART): Tighten.
(POINTER_PART, CP_SYMBOL): New.
(SIMPLE_RETURN_PART): Reimplement.
(VEC_RETURN_PART): Expect less.
(RETURN_PART, VIRTUAL_PART): New.
(METHOD): Adjust to C++ virtual methods.
(scan_target_h): Remove reference to C99.
(dname): Output "target_ops::" prefix.
(write_function_header): Adjust to output a C++ class method.
(write_declaration): New.
(write_delegator): Adjust to output a C++ class method.
(tdname): Output "dummy_target::" prefix.
(write_tdefault, write_debugmethod): Adjust to output a C++ class
method.
(tdefault_names, debug_names): Delete.
(return_types, tdefaults, styles, argtypes_array): New.
(top level): All methods are delegators.
(print_class): New.
(top level): Print dummy_target and debug_target classes.
* target-delegates.c: Regenerate.
* target-debug.h (target_debug_print_enum_info_proc_what)
(target_debug_print_thread_control_capabilities)
(target_debug_print_thread_info_p): New.
* target.c (dummy_target): Delete.
(the_dummy_target, the_debug_target): New.
(target_stack): Now extern.
(set_targetdebug): Push/unpush debug target.
(default_child_has_all_memory, default_child_has_memory)
(default_child_has_stack, default_child_has_registers)
(default_child_has_execution): Remove target_ops parameter.
(complete_target_initialization): Delete.
(add_target_with_completer): No longer call
complete_target_initialization.
(target_supports_terminal_ours): Use regular delegation.
(update_current_target): Delete.
(push_target): No longer check magic number. Don't call
update_current_target.
(unpush_target): Don't call update_current_target.
(target_is_pushed): No longer check magic number.
(target_require_runnable): Skip for all stratums over
process_stratum.
(target_ops::info_proc): New.
(target_info_proc): Use find_target_at and
find_default_run_target.
(target_supports_disable_randomization): Use regular delegation.
(target_get_osdata): Use find_target_at.
(target_ops::open, target_ops::close, target_ops::can_attach)
(target_ops::attach, target_ops::can_create_inferior)
(target_ops::create_inferior, target_ops::can_run)
(target_can_run): New.
(default_fileio_target): Use regular delegation.
(target_ops::fileio_open, target_ops::fileio_pwrite)
(target_ops::fileio_pread, target_ops::fileio_fstat)
(target_ops::fileio_close, target_ops::fileio_unlink)
(target_ops::fileio_readlink): New.
(target_fileio_open_1, target_fileio_unlink)
(target_fileio_readlink): Always call the target method. Handle
FILEIO_ENOSYS.
(return_zero, return_zero_has_execution): Delete.
(init_dummy_target): Delete.
(dummy_target::dummy_target, dummy_target::shortname)
(dummy_target::longname, dummy_target::doc)
(debug_target::debug_target, debug_target::shortname)
(debug_target::longname, debug_target::doc): New.
(target_supports_delete_record): Use regular delegation.
(setup_target_debug): Delete.
(maintenance_print_target_stack): Skip debug_stratum.
(initialize_targets): Instantiate the_dummy_target and
the_debug_target.
* auxv.c (target_auxv_parse): Remove 'ops' parameter. Adjust to
use target_stack.
(target_auxv_search, fprint_target_auxv): Adjust.
(info_auxv_command): Adjust to use target_stack.
* auxv.h (target_auxv_parse): Remove 'ops' parameter.
* exceptions.c (print_flush): Handle a NULL target_stack.
* regcache.c (target_ops_no_register): Refactor as class with
virtual methods.
* exec.c (exec_target): New class.
(exec_ops): Now an exec_target.
(exec_open, exec_close_1, exec_get_section_table)
(exec_xfer_partial, exec_files_info, exec_has_memory)
(exec_make_note_section): Refactor as exec_target methods.
(exec_file_clear, ignore, exec_remove_breakpoint, init_exec_ops):
Delete.
(exec_target::find_memory_regions): New.
(_initialize_exec): Don't call init_exec_ops.
* gdbcore.h (exec_file_clear): Delete.
* corefile.c (core_target): Delete.
(core_file_command): Adjust.
* corelow.c (core_target): New class.
(the_core_target): New.
(core_close): Remove target_ops parameter.
(core_close_cleanup): Adjust.
(core_target::close): New.
(core_open, core_detach, get_core_registers, core_files_info)
(core_xfer_partial, core_thread_alive, core_read_description)
(core_pid_to_str, core_thread_name, core_has_memory)
(core_has_stack, core_has_registers, core_info_proc): Rework as
core_target methods.
(ignore, core_remove_breakpoint, init_core_ops): Delete.
(_initialize_corelow): Initialize the_core_target.
* gdbcore.h (core_target): Delete.
(the_core_target): New.
* ctf.c: (ctf_target): New class.
(ctf_ops): Now a ctf_target.
(ctf_open, ctf_close, ctf_files_info, ctf_fetch_registers)
(ctf_xfer_partial, ctf_get_trace_state_variable_value)
(ctf_trace_find, ctf_traceframe_info): Refactor as ctf_target
methods.
(init_ctf_ops): Delete.
(_initialize_ctf): Don't call it.
* tracefile-tfile.c (tfile_target): New class.
(tfile_ops): Now a tfile_target.
(tfile_open, tfile_close, tfile_files_info)
(tfile_get_tracepoint_status, tfile_trace_find)
(tfile_fetch_registers, tfile_xfer_partial)
(tfile_get_trace_state_variable_value, tfile_traceframe_info):
Refactor as tfile_target methods.
(tfile_xfer_partial_features): Remove target_ops parameter.
(init_tfile_ops): Delete.
(_initialize_tracefile_tfile): Don't call it.
* tracefile.c (tracefile_has_all_memory, tracefile_has_memory)
(tracefile_has_stack, tracefile_has_registers)
(tracefile_thread_alive, tracefile_get_trace_status): Refactor as
tracefile_target methods.
(init_tracefile_ops): Delete.
(tracefile_target::tracefile_target): New.
* tracefile.h: Include "target.h".
(tracefile_target): New class.
(init_tracefile_ops): Delete.
* spu-multiarch.c (spu_multiarch_target): New class.
(spu_ops): Now a spu_multiarch_target.
(spu_thread_architecture, spu_region_ok_for_hw_watchpoint)
(spu_fetch_registers, spu_store_registers, spu_xfer_partial)
(spu_search_memory, spu_mourn_inferior): Refactor as
spu_multiarch_target methods.
(init_spu_ops): Delete.
(_initialize_spu_multiarch): Remove references to init_spu_ops,
complete_target_initialization.
* ravenscar-thread.c (ravenscar_thread_target): New class.
(ravenscar_ops): Now a ravenscar_thread_target.
(ravenscar_resume, ravenscar_wait, ravenscar_update_thread_list)
(ravenscar_thread_alive, ravenscar_pid_to_str)
(ravenscar_fetch_registers, ravenscar_store_registers)
(ravenscar_prepare_to_store, ravenscar_stopped_by_sw_breakpoint)
(ravenscar_stopped_by_hw_breakpoint)
(ravenscar_stopped_by_watchpoint, ravenscar_stopped_data_address)
(ravenscar_mourn_inferior, ravenscar_core_of_thread)
(ravenscar_get_ada_task_ptid): Refactor as ravenscar_thread_target
methods.
(init_ravenscar_thread_ops): Delete.
(_initialize_ravenscar): Remove references to
init_ravenscar_thread_ops and complete_target_initialization.
* bsd-uthread.c (bsd_uthread_ops_hack): Delete.
(bsd_uthread_target): New class.
(bsd_uthread_ops): Now a bsd_uthread_target.
(bsd_uthread_activate): Adjust to refer to bsd_uthread_ops.
(bsd_uthread_close, bsd_uthread_mourn_inferior)
(bsd_uthread_fetch_registers, bsd_uthread_store_registers)
(bsd_uthread_wait, bsd_uthread_resume, bsd_uthread_thread_alive)
(bsd_uthread_update_thread_list, bsd_uthread_extra_thread_info)
(bsd_uthread_pid_to_str): Refactor as bsd_uthread_target methods.
(bsd_uthread_target): Delete function.
(_initialize_bsd_uthread): Remove reference to
complete_target_initialization.
* bfd-target.c (target_bfd_data): Delete. Fields folded into ...
(target_bfd): ... this new class.
(target_bfd_xfer_partial, target_bfd_get_section_table)
(target_bfd_close): Refactor as target_bfd methods.
(target_bfd::~target_bfd): New.
(target_bfd_reopen): Adjust.
(target_bfd::close): New.
* record-btrace.c (record_btrace_target): New class.
(record_btrace_ops): Now a record_btrace_target.
(record_btrace_open, record_btrace_stop_recording)
(record_btrace_disconnect, record_btrace_close)
(record_btrace_async, record_btrace_info)
(record_btrace_insn_history, record_btrace_insn_history_range)
(record_btrace_insn_history_from, record_btrace_call_history)
(record_btrace_call_history_range)
(record_btrace_call_history_from, record_btrace_record_method)
(record_btrace_is_replaying, record_btrace_will_replay)
(record_btrace_xfer_partial, record_btrace_insert_breakpoint)
(record_btrace_remove_breakpoint, record_btrace_fetch_registers)
(record_btrace_store_registers, record_btrace_prepare_to_store)
(record_btrace_to_get_unwinder)
(record_btrace_to_get_tailcall_unwinder, record_btrace_resume)
(record_btrace_commit_resume, record_btrace_wait)
(record_btrace_stop, record_btrace_can_execute_reverse)
(record_btrace_stopped_by_sw_breakpoint)
(record_btrace_supports_stopped_by_sw_breakpoint)
(record_btrace_stopped_by_hw_breakpoint)
(record_btrace_supports_stopped_by_hw_breakpoint)
(record_btrace_update_thread_list, record_btrace_thread_alive)
(record_btrace_goto_begin, record_btrace_goto_end)
(record_btrace_goto, record_btrace_stop_replaying_all)
(record_btrace_execution_direction)
(record_btrace_prepare_to_generate_core)
(record_btrace_done_generating_core): Refactor as
record_btrace_target methods.
(init_record_btrace_ops): Delete.
(_initialize_record_btrace): Remove reference to
init_record_btrace_ops.
* record-full.c (RECORD_FULL_IS_REPLAY): Adjust to always refer to
the execution_direction global.
(record_full_base_target, record_full_target)
(record_full_core_target): New classes.
(record_full_ops): Now a record_full_target.
(record_full_core_ops): Now a record_full_core_target.
(record_full_target::detach, record_full_target::disconnect)
(record_full_core_target::disconnect)
(record_full_target::mourn_inferior, record_full_target::kill):
New.
(record_full_open, record_full_close, record_full_async): Refactor
as methods of the record_full_base_target class.
(record_full_resume, record_full_commit_resume): Refactor
as methods of the record_full_target class.
(record_full_wait, record_full_stopped_by_watchpoint)
(record_full_stopped_data_address)
(record_full_stopped_by_sw_breakpoint)
(record_full_supports_stopped_by_sw_breakpoint)
(record_full_stopped_by_hw_breakpoint)
(record_full_supports_stopped_by_hw_breakpoint): Refactor as
methods of the record_full_base_target class.
(record_full_store_registers, record_full_xfer_partial)
(record_full_insert_breakpoint, record_full_remove_breakpoint):
Refactor as methods of the record_full_target class.
(record_full_can_execute_reverse, record_full_get_bookmark)
(record_full_goto_bookmark, record_full_execution_direction)
(record_full_record_method, record_full_info, record_full_delete)
(record_full_is_replaying, record_full_will_replay)
(record_full_goto_begin, record_full_goto_end, record_full_goto)
(record_full_stop_replaying): Refactor as methods of the
record_full_base_target class.
(record_full_core_resume, record_full_core_kill)
(record_full_core_fetch_registers)
(record_full_core_prepare_to_store)
(record_full_core_store_registers, record_full_core_xfer_partial)
(record_full_core_insert_breakpoint)
(record_full_core_remove_breakpoint)
(record_full_core_has_execution): Refactor
as methods of the record_full_core_target class.
(record_full_base_target::supports_delete_record): New.
(init_record_full_ops): Delete.
(init_record_full_core_ops): Delete.
(record_full_save): Refactor as method of the
record_full_base_target class.
(_initialize_record_full): Remove references to
init_record_full_ops and init_record_full_core_ops.
* remote.c (remote_target, extended_remote_target): New classes.
(remote_ops): Now a remote_target.
(extended_remote_ops): Now an extended_remote_target.
(remote_insert_fork_catchpoint, remote_remove_fork_catchpoint)
(remote_insert_vfork_catchpoint, remote_remove_vfork_catchpoint)
(remote_insert_exec_catchpoint, remote_remove_exec_catchpoint)
(remote_pass_signals, remote_set_syscall_catchpoint)
(remote_program_signals, )
(remote_thread_always_alive): Remove target_ops parameter.
(remote_thread_alive, remote_thread_name)
(remote_update_thread_list, remote_threads_extra_info)
(remote_static_tracepoint_marker_at)
(remote_static_tracepoint_markers_by_strid)
(remote_get_ada_task_ptid, remote_close, remote_start_remote)
(remote_open): Refactor as methods of remote_target.
(extended_remote_open, extended_remote_detach)
(extended_remote_attach, extended_remote_post_attach):
(extended_remote_supports_disable_randomization)
(extended_remote_create_inferior): : Refactor as method of
extended_remote_target.
(remote_set_permissions, remote_open_1, remote_detach)
(remote_follow_fork, remote_follow_exec, remote_disconnect)
(remote_resume, remote_commit_resume, remote_stop)
(remote_interrupt, remote_pass_ctrlc, remote_terminal_inferior)
(remote_terminal_ours, remote_wait, remote_fetch_registers)
(remote_prepare_to_store, remote_store_registers)
(remote_flash_erase, remote_flash_done, remote_files_info)
(remote_kill, remote_mourn, remote_insert_breakpoint)
(remote_remove_breakpoint, remote_insert_watchpoint)
(remote_watchpoint_addr_within_range)
(remote_remove_watchpoint, remote_region_ok_for_hw_watchpoint)
(remote_check_watch_resources, remote_stopped_by_sw_breakpoint)
(remote_supports_stopped_by_sw_breakpoint)
(remote_stopped_by_hw_breakpoint)
(remote_supports_stopped_by_hw_breakpoint)
(remote_stopped_by_watchpoint, remote_stopped_data_address)
(remote_insert_hw_breakpoint, remote_remove_hw_breakpoint)
(remote_verify_memory): Refactor as methods of remote_target.
(remote_write_qxfer, remote_read_qxfer): Remove target_ops
parameter.
(remote_xfer_partial, remote_get_memory_xfer_limit)
(remote_search_memory, remote_rcmd, remote_memory_map)
(remote_pid_to_str, remote_get_thread_local_address)
(remote_get_tib_address, remote_read_description): Refactor as
methods of remote_target.
(remote_target::fileio_open, remote_target::fileio_pwrite)
(remote_target::fileio_pread, remote_target::fileio_close): New.
(remote_hostio_readlink, remote_hostio_fstat)
(remote_filesystem_is_local, remote_can_execute_reverse)
(remote_supports_non_stop, remote_supports_disable_randomization)
(remote_supports_multi_process, remote_supports_cond_breakpoints)
(remote_supports_enable_disable_tracepoint)
(remote_supports_string_tracing)
(remote_can_run_breakpoint_commands, remote_trace_init)
(remote_download_tracepoint, remote_can_download_tracepoint)
(remote_download_trace_state_variable, remote_enable_tracepoint)
(remote_disable_tracepoint, remote_trace_set_readonly_regions)
(remote_trace_start, remote_get_trace_status)
(remote_get_tracepoint_status, remote_trace_stop)
(remote_trace_find, remote_get_trace_state_variable_value)
(remote_save_trace_data, remote_get_raw_trace_data)
(remote_set_disconnected_tracing, remote_core_of_thread)
(remote_set_circular_trace_buffer, remote_traceframe_info)
(remote_get_min_fast_tracepoint_insn_len)
(remote_set_trace_buffer_size, remote_set_trace_notes)
(remote_use_agent, remote_can_use_agent, remote_enable_btrace)
(remote_disable_btrace, remote_teardown_btrace)
(remote_read_btrace, remote_btrace_conf)
(remote_augmented_libraries_svr4_read, remote_load)
(remote_pid_to_exec_file, remote_can_do_single_step)
(remote_execution_direction, remote_thread_handle_to_thread_info):
Refactor as methods of remote_target.
(init_remote_ops, init_extended_remote_ops): Delete.
(remote_can_async_p, remote_is_async_p, remote_async)
(remote_thread_events, remote_upload_tracepoints)
(remote_upload_trace_state_variables): Refactor as methods of
remote_target.
(_initialize_remote): Remove references to init_remote_ops and
init_extended_remote_ops.
* remote-sim.c (gdbsim_target): New class.
(gdbsim_fetch_register, gdbsim_store_register, gdbsim_kill)
(gdbsim_load, gdbsim_create_inferior, gdbsim_open, gdbsim_close)
(gdbsim_detach, gdbsim_resume, gdbsim_interrupt)
(gdbsim_wait, gdbsim_prepare_to_store, gdbsim_xfer_partial)
(gdbsim_files_info, gdbsim_mourn_inferior, gdbsim_thread_alive)
(gdbsim_pid_to_str, gdbsim_has_all_memory, gdbsim_has_memory):
Refactor as methods of gdbsim_target.
(gdbsim_ops): Now a gdbsim_target.
(init_gdbsim_ops): Delete.
(gdbsim_cntrl_c): Adjust.
(_initialize_remote_sim): Remove reference to init_gdbsim_ops.
* amd64-linux-nat.c (amd64_linux_nat_target): New class.
(the_amd64_linux_nat_target): New.
(amd64_linux_fetch_inferior_registers)
(amd64_linux_store_inferior_registers): Refactor as methods of
amd64_linux_nat_target.
(_initialize_amd64_linux_nat): Adjust. Set linux_target.
* i386-linux-nat.c: Don't include "linux-nat.h".
(i386_linux_nat_target): New class.
(the_i386_linux_nat_target): New.
(i386_linux_fetch_inferior_registers)
(i386_linux_store_inferior_registers, i386_linux_resume): Refactor
as methods of i386_linux_nat_target.
(_initialize_i386_linux_nat): Adjust. Set linux_target.
* inf-child.c (inf_child_ops): Delete.
(inf_child_fetch_inferior_registers)
(inf_child_store_inferior_registers): Delete.
(inf_child_post_attach, inf_child_prepare_to_store): Refactor as
methods of inf_child_target.
(inf_child_target::supports_terminal_ours)
(inf_child_target::terminal_init)
(inf_child_target::terminal_inferior)
(inf_child_target::terminal_ours_for_output)
(inf_child_target::terminal_ours, inf_child_target::interrupt)
(inf_child_target::pass_ctrlc, inf_child_target::terminal_info):
New.
(inf_child_open, inf_child_disconnect, inf_child_close)
(inf_child_mourn_inferior, inf_child_maybe_unpush_target)
(inf_child_post_startup_inferior, inf_child_can_run)
(inf_child_pid_to_exec_file): Refactor as methods of
inf_child_target.
(inf_child_follow_fork): Delete.
(inf_child_target::can_create_inferior)
(inf_child_target::can_attach): New.
(inf_child_target::has_all_memory, inf_child_target::has_memory)
(inf_child_target::has_stack, inf_child_target::has_registers)
(inf_child_target::has_execution): New.
(inf_child_fileio_open, inf_child_fileio_pwrite)
(inf_child_fileio_pread, inf_child_fileio_fstat)
(inf_child_fileio_close, inf_child_fileio_unlink)
(inf_child_fileio_readlink, inf_child_use_agent)
(inf_child_can_use_agent): Refactor as methods of
inf_child_target.
(return_zero, inf_child_target): Delete.
(inf_child_target::inf_child_target): New.
* inf-child.h: Include "target.h".
(inf_child_target): Delete function prototype.
(inf_child_target): New class.
(inf_child_open_target, inf_child_mourn_inferior)
(inf_child_maybe_unpush_target): Delete.
* inf-ptrace.c (inf_ptrace_target::~inf_ptrace_target): New.
(inf_ptrace_follow_fork, inf_ptrace_insert_fork_catchpoint)
(inf_ptrace_remove_fork_catchpoint, inf_ptrace_create_inferior)
(inf_ptrace_post_startup_inferior, inf_ptrace_mourn_inferior)
(inf_ptrace_attach, inf_ptrace_post_attach, inf_ptrace_detach)
(inf_ptrace_detach_success, inf_ptrace_kill, inf_ptrace_resume)
(inf_ptrace_wait, inf_ptrace_xfer_partial)
(inf_ptrace_thread_alive, inf_ptrace_files_info)
(inf_ptrace_pid_to_str, inf_ptrace_auxv_parse): Refactor as
methods of inf_ptrace_target.
(inf_ptrace_target): Delete function.
* inf-ptrace.h: Include "inf-child.h".
(inf_ptrace_target): Delete function declaration.
(inf_ptrace_target): New class.
(inf_ptrace_trad_target, inf_ptrace_detach_success): Delete.
* linux-nat.c (linux_target): New.
(linux_ops, linux_ops_saved, super_xfer_partial): Delete.
(linux_nat_target::~linux_nat_target): New.
(linux_child_post_attach, linux_child_post_startup_inferior)
(linux_child_follow_fork, linux_child_insert_fork_catchpoint)
(linux_child_remove_fork_catchpoint)
(linux_child_insert_vfork_catchpoint)
(linux_child_remove_vfork_catchpoint)
(linux_child_insert_exec_catchpoint)
(linux_child_remove_exec_catchpoint)
(linux_child_set_syscall_catchpoint, linux_nat_pass_signals)
(linux_nat_create_inferior, linux_nat_attach, linux_nat_detach)
(linux_nat_resume, linux_nat_stopped_by_watchpoint)
(linux_nat_stopped_data_address)
(linux_nat_stopped_by_sw_breakpoint)
(linux_nat_supports_stopped_by_sw_breakpoint)
(linux_nat_stopped_by_hw_breakpoint)
(linux_nat_supports_stopped_by_hw_breakpoint, linux_nat_wait)
(linux_nat_kill, linux_nat_mourn_inferior)
(linux_nat_xfer_partial, linux_nat_thread_alive)
(linux_nat_update_thread_list, linux_nat_pid_to_str)
(linux_nat_thread_name, linux_child_pid_to_exec_file)
(linux_child_static_tracepoint_markers_by_strid)
(linux_nat_is_async_p, linux_nat_can_async_p)
(linux_nat_supports_non_stop, linux_nat_always_non_stop_p)
(linux_nat_supports_multi_process)
(linux_nat_supports_disable_randomization, linux_nat_async)
(linux_nat_stop, linux_nat_close, linux_nat_thread_address_space)
(linux_nat_core_of_thread, linux_nat_filesystem_is_local)
(linux_nat_fileio_open, linux_nat_fileio_readlink)
(linux_nat_fileio_unlink, linux_nat_thread_events): Refactor as
methods of linux_nat_target.
(linux_nat_wait_1, linux_xfer_siginfo, linux_proc_xfer_partial)
(linux_proc_xfer_spu, linux_nat_xfer_osdata): Remove target_ops
parameter.
(check_stopped_by_watchpoint): Adjust.
(linux_xfer_partial): Delete.
(linux_target_install_ops, linux_target, linux_nat_add_target):
Delete.
(linux_nat_target::linux_nat_target): New.
* linux-nat.h: Include "inf-ptrace.h".
(linux_nat_target): New.
(linux_target, linux_target_install_ops, linux_nat_add_target):
Delete function declarations.
(linux_target): Declare global.
* linux-thread-db.c (thread_db_target): New.
(thread_db_target::thread_db_target): New.
(thread_db_ops): Delete.
(the_thread_db_target): New.
(thread_db_detach, thread_db_wait, thread_db_mourn_inferior)
(thread_db_update_thread_list, thread_db_pid_to_str)
(thread_db_extra_thread_info)
(thread_db_thread_handle_to_thread_info)
(thread_db_get_thread_local_address, thread_db_get_ada_task_ptid)
(thread_db_resume): Refactor as methods of thread_db_target.
(init_thread_db_ops): Delete.
(_initialize_thread_db): Remove reference to init_thread_db_ops.
* x86-linux-nat.c: Don't include "linux-nat.h".
(super_post_startup_inferior): Delete.
(x86_linux_nat_target::~x86_linux_nat_target): New.
(x86_linux_child_post_startup_inferior)
(x86_linux_read_description, x86_linux_enable_btrace)
(x86_linux_disable_btrace, x86_linux_teardown_btrace)
(x86_linux_read_btrace, x86_linux_btrace_conf): Refactor as
methods of x86_linux_nat_target.
(x86_linux_create_target): Delete. Bits folded ...
(x86_linux_add_target): ... here. Now takes a linux_nat_target
pointer.
* x86-linux-nat.h: Include "linux-nat.h" and "x86-nat.h".
(x86_linux_nat_target): New class.
(x86_linux_create_target): Delete.
(x86_linux_add_target): Now takes a linux_nat_target pointer.
* x86-nat.c (x86_insert_watchpoint, x86_remove_watchpoint)
(x86_region_ok_for_watchpoint, x86_stopped_data_address)
(x86_stopped_by_watchpoint, x86_insert_hw_breakpoint)
(x86_remove_hw_breakpoint, x86_can_use_hw_breakpoint)
(x86_stopped_by_hw_breakpoint): Remove target_ops parameter and
make extern.
(x86_use_watchpoints): Delete.
* x86-nat.h: Include "breakpoint.h" and "target.h".
(x86_use_watchpoints): Delete.
(x86_can_use_hw_breakpoint, x86_region_ok_for_hw_watchpoint)
(x86_stopped_by_watchpoint, x86_stopped_data_address)
(x86_insert_watchpoint, x86_remove_watchpoint)
(x86_insert_hw_breakpoint, x86_remove_hw_breakpoint)
(x86_stopped_by_hw_breakpoint): New declarations.
(x86_nat_target): New template class.
* ppc-linux-nat.c (ppc_linux_nat_target): New class.
(the_ppc_linux_nat_target): New.
(ppc_linux_fetch_inferior_registers)
(ppc_linux_can_use_hw_breakpoint)
(ppc_linux_region_ok_for_hw_watchpoint)
(ppc_linux_ranged_break_num_registers)
(ppc_linux_insert_hw_breakpoint, ppc_linux_remove_hw_breakpoint)
(ppc_linux_insert_mask_watchpoint)
(ppc_linux_remove_mask_watchpoint)
(ppc_linux_can_accel_watchpoint_condition)
(ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint)
(ppc_linux_stopped_data_address, ppc_linux_stopped_by_watchpoint)
(ppc_linux_watchpoint_addr_within_range)
(ppc_linux_masked_watch_num_registers)
(ppc_linux_store_inferior_registers, ppc_linux_auxv_parse)
(ppc_linux_read_description): Refactor as methods of
ppc_linux_nat_target.
(_initialize_ppc_linux_nat): Adjust. Set linux_target.
* procfs.c (procfs_xfer_partial): Delete forward declaration.
(procfs_target): New class.
(the_procfs_target): New.
(procfs_target): Delete function.
(procfs_auxv_parse, procfs_attach, procfs_detach)
(procfs_fetch_registers, procfs_store_registers, procfs_wait)
(procfs_xfer_partial, procfs_resume, procfs_pass_signals)
(procfs_files_info, procfs_kill_inferior, procfs_mourn_inferior)
(procfs_create_inferior, procfs_update_thread_list)
(procfs_thread_alive, procfs_pid_to_str)
(procfs_can_use_hw_breakpoint, procfs_stopped_by_watchpoint)
(procfs_stopped_data_address, procfs_insert_watchpoint)
(procfs_remove_watchpoint, procfs_region_ok_for_hw_watchpoint)
(proc_find_memory_regions, procfs_info_proc)
(procfs_make_note_section): Refactor as methods of procfs_target.
(_initialize_procfs): Adjust.
* sol-thread.c (sol_thread_target): New class.
(sol_thread_ops): Now a sol_thread_target.
(sol_thread_detach, sol_thread_resume, sol_thread_wait)
(sol_thread_fetch_registers, sol_thread_store_registers)
(sol_thread_xfer_partial, sol_thread_mourn_inferior)
(sol_thread_alive, solaris_pid_to_str, sol_update_thread_list)
(sol_get_ada_task_ptid): Refactor as methods of sol_thread_target.
(init_sol_thread_ops): Delete.
(_initialize_sol_thread): Adjust. Remove references to
init_sol_thread_ops and complete_target_initialization.
* windows-nat.c (windows_nat_target): New class.
(windows_fetch_inferior_registers)
(windows_store_inferior_registers, windows_resume, windows_wait)
(windows_attach, windows_detach, windows_pid_to_exec_file)
(windows_files_info, windows_create_inferior)
(windows_mourn_inferior, windows_interrupt, windows_kill_inferior)
(windows_close, windows_pid_to_str, windows_xfer_partial)
(windows_get_tib_address, windows_get_ada_task_ptid)
(windows_thread_name, windows_thread_alive): Refactor as
windows_nat_target methods.
(do_initial_windows_stuff): Adjust.
(windows_target): Delete function.
(_initialize_windows_nat): Adjust.
* darwin-nat.c (darwin_resume, darwin_wait_to, darwin_interrupt)
(darwin_mourn_inferior, darwin_kill_inferior)
(darwin_create_inferior, darwin_attach, darwin_detach)
(darwin_pid_to_str, darwin_thread_alive, darwin_xfer_partial)
(darwin_pid_to_exec_file, darwin_get_ada_task_ptid)
(darwin_supports_multi_process): Refactor as darwin_nat_target
methods.
(darwin_resume_to, darwin_files_info): Delete.
(_initialize_darwin_inferior): Rename to ...
(_initialize_darwin_nat): ... this. Adjust to C++ification.
* darwin-nat.h: Include "inf-child.h".
(darwin_nat_target): New class.
(darwin_complete_target): Delete.
* i386-darwin-nat.c (i386_darwin_nat_target): New class.
(darwin_target): New.
(i386_darwin_fetch_inferior_registers)
(i386_darwin_store_inferior_registers): Refactor as methods of
darwin_nat_target.
(darwin_complete_target): Delete, with ...
(_initialize_i386_darwin_nat): ... bits factored out here.
* alpha-linux-nat.c (alpha_linux_nat_target): New class.
(the_alpha_linux_nat_target): New.
(alpha_linux_register_u_offset): Refactor as
alpha_linux_nat_target method.
(_initialize_alpha_linux_nat): Adjust.
* linux-nat-trad.c (inf_ptrace_register_u_offset): Delete.
(inf_ptrace_fetch_register, inf_ptrace_fetch_registers)
(inf_ptrace_store_register, inf_ptrace_store_registers): Refact as
methods of linux_nat_trad_target.
(linux_trad_target): Delete.
* linux-nat-trad.h (linux_trad_target): Delete function.
(linux_nat_trad_target): New class.
* mips-linux-nat.c (mips_linux_nat_target): New class.
(super_fetch_registers, super_store_registers, super_close):
Delete.
(the_mips_linux_nat_target): New.
(mips64_linux_regsets_fetch_registers)
(mips64_linux_regsets_store_registers)
(mips64_linux_fetch_registers, mips64_linux_store_registers)
(mips_linux_register_u_offset, mips_linux_read_description)
(mips_linux_can_use_hw_breakpoint)
(mips_linux_stopped_by_watchpoint)
(mips_linux_stopped_data_address)
(mips_linux_region_ok_for_hw_watchpoint)
(mips_linux_insert_watchpoint, mips_linux_remove_watchpoint)
(mips_linux_close): Refactor as methods of mips_linux_nat.
(_initialize_mips_linux_nat): Adjust to C++ification.
* aix-thread.c (aix_thread_target): New class.
(aix_thread_ops): Now an aix_thread_target.
(aix_thread_detach, aix_thread_resume, aix_thread_wait)
(aix_thread_fetch_registers, aix_thread_store_registers)
(aix_thread_xfer_partial, aix_thread_mourn_inferior)
(aix_thread_thread_alive, aix_thread_pid_to_str)
(aix_thread_extra_thread_info, aix_thread_get_ada_task_ptid):
Refactor as methods of aix_thread_target.
(init_aix_thread_ops): Delete.
(_initialize_aix_thread): Remove references to init_aix_thread_ops
and complete_target_initialization.
* rs6000-nat.c (rs6000_xfer_shared_libraries): Delete.
(rs6000_nat_target): New class.
(the_rs6000_nat_target): New.
(rs6000_fetch_inferior_registers, rs6000_store_inferior_registers)
(rs6000_xfer_partial, rs6000_wait, rs6000_create_inferior)
(rs6000_xfer_shared_libraries): Refactor as rs6000_nat_target methods.
(super_create_inferior): Delete.
(_initialize_rs6000_nat): Adjust to C++ification.
* arm-linux-nat.c (arm_linux_nat_target): New class.
(the_arm_linux_nat_target): New.
(arm_linux_fetch_inferior_registers)
(arm_linux_store_inferior_registers, arm_linux_read_description)
(arm_linux_can_use_hw_breakpoint, arm_linux_insert_hw_breakpoint)
(arm_linux_remove_hw_breakpoint)
(arm_linux_region_ok_for_hw_watchpoint)
(arm_linux_insert_watchpoint, arm_linux_remove_watchpoint)
(arm_linux_stopped_data_address, arm_linux_stopped_by_watchpoint)
(arm_linux_watchpoint_addr_within_range): Refactor as methods of
arm_linux_nat_target.
(_initialize_arm_linux_nat): Adjust to C++ification.
* aarch64-linux-nat.c (aarch64_linux_nat_target): New class.
(the_aarch64_linux_nat_target): New.
(aarch64_linux_fetch_inferior_registers)
(aarch64_linux_store_inferior_registers)
(aarch64_linux_child_post_startup_inferior)
(aarch64_linux_read_description)
(aarch64_linux_can_use_hw_breakpoint)
(aarch64_linux_insert_hw_breakpoint)
(aarch64_linux_remove_hw_breakpoint)
(aarch64_linux_insert_watchpoint, aarch64_linux_remove_watchpoint)
(aarch64_linux_region_ok_for_hw_watchpoint)
(aarch64_linux_stopped_data_address)
(aarch64_linux_stopped_by_watchpoint)
(aarch64_linux_watchpoint_addr_within_range)
(aarch64_linux_can_do_single_step): Refactor as methods of
aarch64_linux_nat_target.
(super_post_startup_inferior): Delete.
(_initialize_aarch64_linux_nat): Adjust to C++ification.
* hppa-linux-nat.c (hppa_linux_nat_target): New class.
(the_hppa_linux_nat_target): New.
(hppa_linux_fetch_inferior_registers)
(hppa_linux_store_inferior_registers): Refactor as methods of
hppa_linux_nat_target.
(_initialize_hppa_linux_nat): Adjust to C++ification.
* ia64-linux-nat.c (ia64_linux_nat_target): New class.
(the_ia64_linux_nat_target): New.
(ia64_linux_insert_watchpoint, ia64_linux_remove_watchpoint)
(ia64_linux_stopped_data_address)
(ia64_linux_stopped_by_watchpoint, ia64_linux_fetch_registers)
(ia64_linux_store_registers, ia64_linux_xfer_partial): Refactor as
ia64_linux_nat_target methods.
(super_xfer_partial): Delete.
(_initialize_ia64_linux_nat): Adjust to C++ification.
* m32r-linux-nat.c (m32r_linux_nat_target): New class.
(the_m32r_linux_nat_target): New.
(m32r_linux_fetch_inferior_registers)
(m32r_linux_store_inferior_registers): Refactor as
m32r_linux_nat_target methods.
(_initialize_m32r_linux_nat): Adjust to C++ification.
* m68k-linux-nat.c (m68k_linux_nat_target): New class.
(the_m68k_linux_nat_target): New.
(m68k_linux_fetch_inferior_registers)
(m68k_linux_store_inferior_registers): Refactor as
m68k_linux_nat_target methods.
(_initialize_m68k_linux_nat): Adjust to C++ification.
* s390-linux-nat.c (s390_linux_nat_target): New class.
(the_s390_linux_nat_target): New.
(s390_linux_fetch_inferior_registers)
(s390_linux_store_inferior_registers, s390_stopped_by_watchpoint)
(s390_insert_watchpoint, s390_remove_watchpoint)
(s390_can_use_hw_breakpoint, s390_insert_hw_breakpoint)
(s390_remove_hw_breakpoint, s390_region_ok_for_hw_watchpoint)
(s390_auxv_parse, s390_read_description): Refactor as methods of
s390_linux_nat_target.
(_initialize_s390_nat): Adjust to C++ification.
* sparc-linux-nat.c (sparc_linux_nat_target): New class.
(the_sparc_linux_nat_target): New.
(_initialize_sparc_linux_nat): Adjust to C++ification.
* sparc-nat.c (sparc_fetch_inferior_registers)
(sparc_store_inferior_registers): Remove target_ops parameter.
* sparc-nat.h (sparc_fetch_inferior_registers)
(sparc_store_inferior_registers): Remove target_ops parameter.
* sparc64-linux-nat.c (sparc64_linux_nat_target): New class.
(the_sparc64_linux_nat_target): New.
(_initialize_sparc64_linux_nat): Adjust to C++ification.
* spu-linux-nat.c (spu_linux_nat_target): New class.
(the_spu_linux_nat_target): New.
(spu_child_post_startup_inferior, spu_child_post_attach)
(spu_child_wait, spu_fetch_inferior_registers)
(spu_store_inferior_registers, spu_xfer_partial)
(spu_can_use_hw_breakpoint): Refactor as spu_linux_nat_target
methods.
(_initialize_spu_nat): Adjust to C++ification.
* tilegx-linux-nat.c (tilegx_linux_nat_target): New class.
(the_tilegx_linux_nat_target): New.
(fetch_inferior_registers, store_inferior_registers):
Refactor as methods.
(_initialize_tile_linux_nat): Adjust to C++ification.
* xtensa-linux-nat.c (xtensa_linux_nat_target): New class.
(the_xtensa_linux_nat_target): New.
(xtensa_linux_fetch_inferior_registers)
(xtensa_linux_store_inferior_registers): Refactor as
xtensa_linux_nat_target methods.
(_initialize_xtensa_linux_nat): Adjust to C++ification.
* fbsd-nat.c (USE_SIGTRAP_SIGINFO): Delete.
(fbsd_pid_to_exec_file, fbsd_find_memory_regions)
(fbsd_find_memory_regions, fbsd_info_proc, fbsd_xfer_partial)
(fbsd_thread_alive, fbsd_pid_to_str, fbsd_thread_name)
(fbsd_update_thread_list, fbsd_resume, fbsd_wait)
(fbsd_stopped_by_sw_breakpoint)
(fbsd_supports_stopped_by_sw_breakpoint, fbsd_follow_fork)
(fbsd_insert_fork_catchpoint, fbsd_remove_fork_catchpoint)
(fbsd_insert_vfork_catchpoint, fbsd_remove_vfork_catchpoint)
(fbsd_post_startup_inferior, fbsd_post_attach)
(fbsd_insert_exec_catchpoint, fbsd_remove_exec_catchpoint)
(fbsd_set_syscall_catchpoint)
(super_xfer_partial, super_resume, super_wait)
(fbsd_supports_stopped_by_hw_breakpoint): Delete.
(fbsd_handle_debug_trap): Remove target_ops parameter.
(fbsd_nat_add_target): Delete.
* fbsd-nat.h: Include "inf-ptrace.h".
(fbsd_nat_add_target): Delete.
(USE_SIGTRAP_SIGINFO): Define.
(fbsd_nat_target): New class.
* amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers)
(amd64bsd_store_inferior_registers): Remove target_ops parameter.
(amd64bsd_target): Delete.
* amd64-bsd-nat.h: New file.
* amd64-fbsd-nat.c: Include "amd64-bsd-nat.h" instead of
"x86-bsd-nat.h".
(amd64_fbsd_nat_target): New class.
(the_amd64_fbsd_nat_target): New.
(amd64fbsd_read_description): Refactor as method of
amd64_fbsd_nat_target.
(amd64_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New.
(_initialize_amd64fbsd_nat): Adjust to C++ification.
* amd64-nat.h (amd64bsd_target): Delete function declaration.
* i386-bsd-nat.c (i386bsd_fetch_inferior_registers)
(i386bsd_store_inferior_registers): Remove target_ops parameter.
(i386bsd_target): Delete.
* i386-bsd-nat.h (i386bsd_target): Delete function declaration.
(i386bsd_fetch_inferior_registers)
(i386bsd_store_inferior_registers): Declare.
(i386_bsd_nat_target): New class.
* i386-fbsd-nat.c (i386_fbsd_nat_target): New class.
(the_i386_fbsd_nat_target): New.
(i386fbsd_resume, i386fbsd_read_description): Refactor as
i386_fbsd_nat_target methods.
(i386_fbsd_nat_target::supports_stopped_by_hw_breakpoint): New.
(_initialize_i386fbsd_nat): Adjust to C++ification.
* x86-bsd-nat.c (super_mourn_inferior): Delete.
(x86bsd_mourn_inferior, x86bsd_target): Delete.
(_initialize_x86_bsd_nat): Adjust to C++ification.
* x86-bsd-nat.h: Include "x86-nat.h".
(x86bsd_target): Delete declaration.
(x86bsd_nat_target): New class.
* aarch64-fbsd-nat.c (aarch64_fbsd_nat_target): New class.
(the_aarch64_fbsd_nat_target): New.
(aarch64_fbsd_fetch_inferior_registers)
(aarch64_fbsd_store_inferior_registers): Refactor as methods of
aarch64_fbsd_nat_target.
(_initialize_aarch64_fbsd_nat): Adjust to C++ification.
* alpha-bsd-nat.c (alpha_bsd_nat_target): New class.
(the_alpha_bsd_nat_target): New.
(alphabsd_fetch_inferior_registers)
(alphabsd_store_inferior_registers): Refactor as
alpha_bsd_nat_target methods.
(_initialize_alphabsd_nat): Refactor as methods of
alpha_bsd_nat_target.
* amd64-nbsd-nat.c: Include "amd64-bsd-nat.h".
(the_amd64_nbsd_nat_target): New.
(_initialize_amd64nbsd_nat): Adjust to C++ification.
* amd64-obsd-nat.c: Include "amd64-bsd-nat.h".
(the_amd64_obsd_nat_target): New.
(_initialize_amd64obsd_nat): Adjust to C++ification.
* arm-fbsd-nat.c (arm_fbsd_nat_target): New.
(the_arm_fbsd_nat_target): New.
(arm_fbsd_fetch_inferior_registers)
(arm_fbsd_store_inferior_registers, arm_fbsd_read_description):
(_initialize_arm_fbsd_nat): Refactor as methods of
arm_fbsd_nat_target.
(_initialize_arm_fbsd_nat): Adjust to C++ification.
* arm-nbsd-nat.c (arm_netbsd_nat_target): New class.
(the_arm_netbsd_nat_target): New.
(armnbsd_fetch_registers, armnbsd_store_registers): Refactor as
arm_netbsd_nat_target.
(_initialize_arm_netbsd_nat): Adjust to C++ification.
* hppa-nbsd-nat.c (hppa_nbsd_nat_target): New class.
(the_hppa_nbsd_nat_target): New.
(hppanbsd_fetch_registers, hppanbsd_store_registers): Refactor as
hppa_nbsd_nat_target methods.
(_initialize_hppanbsd_nat): Adjust to C++ification.
* hppa-obsd-nat.c (hppa_obsd_nat_target): New class.
(the_hppa_obsd_nat_target): New.
(hppaobsd_fetch_registers, hppaobsd_store_registers): Refactor as
methods of hppa_obsd_nat_target.
(_initialize_hppaobsd_nat): Adjust to C++ification. Use
add_target.
* i386-nbsd-nat.c (the_i386_nbsd_nat_target): New.
(_initialize_i386nbsd_nat): Adjust to C++ification. Use
add_target.
* i386-obsd-nat.c (the_i386_obsd_nat_target): New.
(_initialize_i386obsd_nat): Use add_target.
* m68k-bsd-nat.c (m68k_bsd_nat_target): New class.
(the_m68k_bsd_nat_target): New.
(m68kbsd_fetch_inferior_registers)
(m68kbsd_store_inferior_registers): Refactor as methods of
m68k_bsd_nat_target.
(_initialize_m68kbsd_nat): Adjust to C++ification.
* mips-fbsd-nat.c (mips_fbsd_nat_target): New class.
(the_mips_fbsd_nat_target): New.
(mips_fbsd_fetch_inferior_registers)
(mips_fbsd_store_inferior_registers): Refactor as methods of
mips_fbsd_nat_target.
(_initialize_mips_fbsd_nat): Adjust to C++ification. Use
add_target.
* mips-nbsd-nat.c (mips_nbsd_nat_target): New class.
(the_mips_nbsd_nat_target): New.
(mipsnbsd_fetch_inferior_registers)
(mipsnbsd_store_inferior_registers): Refactor as methods of
mips_nbsd_nat_target.
(_initialize_mipsnbsd_nat): Adjust to C++ification.
* mips64-obsd-nat.c (mips64_obsd_nat_target): New class.
(the_mips64_obsd_nat_target): New.
(mips64obsd_fetch_inferior_registers)
(mips64obsd_store_inferior_registers): Refactor as methods of
mips64_obsd_nat_target.
(_initialize_mips64obsd_nat): Adjust to C++ification. Use
add_target.
* nbsd-nat.c (nbsd_pid_to_exec_file): Refactor as method of
nbsd_nat_target.
* nbsd-nat.h: Include "inf-ptrace.h".
(nbsd_nat_target): New class.
* obsd-nat.c (obsd_pid_to_str, obsd_update_thread_list)
(obsd_wait): Refactor as methods of obsd_nat_target.
(obsd_add_target): Delete.
* obsd-nat.h: Include "inf-ptrace.h".
(obsd_nat_target): New class.
* ppc-fbsd-nat.c (ppc_fbsd_nat_target): New class.
(the_ppc_fbsd_nat_target): New.
(ppcfbsd_fetch_inferior_registers)
(ppcfbsd_store_inferior_registers): Refactor as methods of
ppc_fbsd_nat_target.
(_initialize_ppcfbsd_nat): Adjust to C++ification. Use
add_target.
* ppc-nbsd-nat.c (ppc_nbsd_nat_target): New class.
(the_ppc_nbsd_nat_target): New.
(ppcnbsd_fetch_inferior_registers)
(ppcnbsd_store_inferior_registers): Refactor as methods of
ppc_nbsd_nat_target.
(_initialize_ppcnbsd_nat): Adjust to C++ification.
* ppc-obsd-nat.c (ppc_obsd_nat_target): New class.
(the_ppc_obsd_nat_target): New.
(ppcobsd_fetch_registers, ppcobsd_store_registers): Refactor as
methods of ppc_obsd_nat_target.
(_initialize_ppcobsd_nat): Adjust to C++ification. Use
add_target.
* sh-nbsd-nat.c (sh_nbsd_nat_target): New class.
(the_sh_nbsd_nat_target): New.
(shnbsd_fetch_inferior_registers)
(shnbsd_store_inferior_registers): Refactor as methods of
sh_nbsd_nat_target.
(_initialize_shnbsd_nat): Adjust to C++ification.
* sparc-nat.c (sparc_xfer_wcookie): Make extern.
(inf_ptrace_xfer_partial): Delete.
(sparc_xfer_partial, sparc_target): Delete.
* sparc-nat.h (sparc_fetch_inferior_registers)
(sparc_store_inferior_registers, sparc_xfer_wcookie): Declare.
(sparc_target): Delete function declaration.
(sparc_target): New template class.
* sparc-nbsd-nat.c (the_sparc_nbsd_nat_target): New.
(_initialize_sparcnbsd_nat): Adjust to C++ification.
* sparc64-fbsd-nat.c (the_sparc64_fbsd_nat_target): New.
(_initialize_sparc64fbsd_nat): Adjust to C++ification. Use
add_target.
* sparc64-nbsd-nat.c (the_sparc64_nbsd_nat_target): New.
(_initialize_sparc64nbsd_nat): Adjust to C++ification.
* sparc64-obsd-nat.c (the_sparc64_obsd_nat_target): New.
(_initialize_sparc64obsd_nat): Adjust to C++ification. Use
add_target.
* vax-bsd-nat.c (vax_bsd_nat_target): New class.
(the_vax_bsd_nat_target): New.
(vaxbsd_fetch_inferior_registers)
(vaxbsd_store_inferior_registers): Refactor as vax_bsd_nat_target
methods.
(_initialize_vaxbsd_nat): Adjust to C++ification.
* bsd-kvm.c (bsd_kvm_target): New class.
(bsd_kvm_ops): Now a bsd_kvm_target.
(bsd_kvm_open, bsd_kvm_close, bsd_kvm_xfer_partial)
(bsd_kvm_files_info, bsd_kvm_fetch_registers)
(bsd_kvm_thread_alive, bsd_kvm_pid_to_str): Refactor as methods of
bsd_kvm_target.
(bsd_kvm_return_one): Delete.
(bsd_kvm_add_target): Adjust to C++ification.
* nto-procfs.c (nto_procfs_target, nto_procfs_target_native)
(nto_procfs_target_procfs): New classes.
(procfs_open_1, procfs_thread_alive, procfs_update_thread_list)
(procfs_files_info, procfs_pid_to_exec_file, procfs_attach)
(procfs_post_attach, procfs_wait, procfs_fetch_registers)
(procfs_xfer_partial, procfs_detach, procfs_insert_breakpoint)
(procfs_remove_breakpoint, procfs_insert_hw_breakpoint)
(procfs_remove_hw_breakpoint, procfs_resume)
(procfs_mourn_inferior, procfs_create_inferior, procfs_interrupt)
(procfs_kill_inferior, procfs_store_registers)
(procfs_pass_signals, procfs_pid_to_str, procfs_can_run): Refactor
as methods of nto_procfs_target.
(nto_procfs_ops): Now an nto_procfs_target_procfs.
(nto_native_ops): Delete.
(procfs_open, procfs_native_open): Delete.
(nto_native_ops): Now an nto_procfs_target_native.
(init_procfs_targets): Adjust to C++ification.
(procfs_can_use_hw_breakpoint, procfs_remove_hw_watchpoint)
(procfs_insert_hw_watchpoint, procfs_stopped_by_watchpoint):
Refactor as methods of nto_procfs_target.
* go32-nat.c (go32_nat_target): New class.
(the_go32_nat_target): New.
(go32_attach, go32_resume, go32_wait, go32_fetch_registers)
(go32_store_registers, go32_xfer_partial, go32_files_info)
(go32_kill_inferior, go32_create_inferior, go32_mourn_inferior)
(go32_terminal_init, go32_terminal_info, go32_terminal_inferior)
(go32_terminal_ours, go32_pass_ctrlc, go32_thread_alive)
(go32_pid_to_str): Refactor as methods of go32_nat_target.
(go32_target): Delete.
(_initialize_go32_nat): Adjust to C++ification.
* gnu-nat.c (gnu_wait, gnu_resume, gnu_kill_inferior)
(gnu_mourn_inferior, gnu_create_inferior, gnu_attach, gnu_detach)
(gnu_stop, gnu_thread_alive, gnu_xfer_partial)
(gnu_find_memory_regions, gnu_pid_to_str): Refactor as methods of
gnu_nat_target.
(gnu_target): Delete.
* gnu-nat.h (gnu_target): Delete.
(gnu_nat_target): New class.
* i386-gnu-nat.c (gnu_base_target): New.
(i386_gnu_nat_target): New class.
(the_i386_gnu_nat_target): New.
(_initialize_i386gnu_nat): Adjust to C++ification.
gdb/testsuite/ChangeLog:
2018-05-02 Pedro Alves <palves@redhat.com>
* gdb.base/breakpoint-in-ro-region.exp: Adjust to to_resume and
to_log_command renames.
* gdb.base/sss-bp-on-user-bp-2.exp: Likewise.
|
||
Sergio Durigan Junior
|
f67c0c9171 |
Enable 'set print inferior-events' and improve detach/fork/kill/exit messages
This patch aims to turn 'set print inferior-events' always on, and do
some cleanup on the messages printed by GDB when various inferior
events happen (attach, detach, fork, kill, exit).
To make sure that the patch is correct, I've tested it with a handful
of combinations of 'set follow-fork-mode', 'set detach-on-fork' and
'set print inferior-events'. In the end, I decided to make my
hand-made test into an official testcase. More on that below.
Using the following program as an example:
#include <unistd.h>
int main ()
{
fork ();
return 0;
}
We see the following outputs from the patched GDB:
- With 'set print inferior-events on':
(gdb) r
Starting program: a.out
[Detaching after fork from child process 27749]
[Inferior 1 (process 27745) exited normally]
(gdb)
- With 'set print inferior-events off':
(gdb) r
Starting program: a.out
[Inferior 1 (process 27823) exited normally]
(gdb)
Comparing this against an unpatched GDB:
- With 'set print inferior-events off' and 'set follow-fork-mode
child':
(gdb) r
Starting program: a.out
[Inferior 2 (process 5993) exited normally]
(gdb)
Compare this against an unpatched GDB:
(unpatched-gdb) r
Starting program: a.out
[New process 5702]
[Inferior 2 (process 5702) exited normally]
(unpatched-gdb)
It is possible to notice that, in this scenario, the patched GDB
will lose the '[New process %d]' message.
- With 'set print inferior-events on', 'set follow-fork-mode child'
and 'set detach-on-fork on':
(gdb) r
Starting program: a.out
[Attaching after process 27905 fork to child process 27909]
[New inferior 2 (process 27909)]
[Detaching after fork from parent process 27905]
[Inferior 1 (process 27905) detached]
[Inferior 2 (process 27909) exited normally]
(gdb)
Compare this output with an unpatched GDB, using the same settings:
(unpatched-gdb) r
Starting program: a.out
[New inferior 28033]
[Inferior 28029 detached]
[New process 28033]
[Inferior 2 (process 28033) exited normally]
[Inferior 28033 exited]
(unpatched-gdb)
As can be seen above, I've also made a few modifications to messages
that are printed when 'set print inferior-events' is on. For example,
a few of the messages did not contain the '[' and ']' as
prefix/suffix, which led to a few inconsistencies like:
Attaching after process 22995 fork to child process 22999.
[New inferior 22999]
Detaching after fork from child process 22999.
[Inferior 22995 detached]
[Inferior 2 (process 22999) exited normally]
So I took the opportunity and included the square brackets where
applicable. I have also made the existing messages more uniform, by
always printing "Inferior %d (process %d)..." where applicable. This
makes it easier to identify the inferior number and the PID number
from the messages.
As suggested by Pedro, the "[Inferior %d exited]" message from
'exit_inferior' has been removed, because it got duplicated when
'inferior-events' is on. I'm also using the
'add_{thread,inferior}_silent' versions (instead of their verbose
counterparts) on some locations, also to avoid duplicated messages.
For example, a patched GDB with 'set print inferior-events on', 'set
detach-on-fork on' and 'set follow-fork-mode child', but using
'add_thread', would print:
(gdb) run
Starting program: a.out
[Attaching after process 25088 fork to child process 25092.]
[New inferior 25092] <--- duplicated
[Detaching after fork from child process 25092.]
[Inferior 25088 detached]
[New process 25092] <--- duplicated
[Inferior 2 (process 25092) exited normally]
But if we use 'add_thread_silent' (with the same configuration as
before):
(gdb) run
Starting program: a.out
[Attaching after process 31606 fork to child process 31610]
[New inferior 2 (process 31610)]
[Detaching after fork from parent process 31606]
[Inferior 1 (process 31606) detached]
[Inferior 2 (process 31610) exited normally]
As for the tests, the configuration options being exercised are:
- follow-fork-mode: child/parent
- detach-on-fork: on/off
- print inferior-events: on/off
It was also necessary to perform adjustments on several testcases,
because the expected messages changed considerably.
Built and regtested on BuildBot, without regressions.
gdb/ChangeLog:
2018-04-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Sergio Durigan Junior <sergiodj@redhat.com>
Pedro Alves <palves@redhat.com>
* infcmd.c (kill_command): Print message when inferior has
been killed.
* inferior.c (print_inferior_events): Remove 'static'. Set as
'1'.
(add_inferior): Improve message printed when
'print_inferior_events' is on.
(exit_inferior): Remove message printed when
'print_inferior_events' is on.
(detach_inferior): Improve message printed when
'print_inferior_events' is on.
(initialize_inferiors): Use 'add_inferior_silent' to set
'current_inferior_'.
* inferior.h (print_inferior_events): Declare here as
'extern'.
* infrun.c (follow_fork_inferior): Print '[Attaching...]' or
'[Detaching...]' messages when 'print_inferior_events' is on.
Use 'add_thread_silent' instead of 'add_thread'. Add '[' and ']'
as prefix/suffix for messages. Remove periods. Fix erroneous
'Detaching after fork from child...', replace it by '... from
parent...'.
(handle_vfork_child_exec_or_exit): Add '[' and ']' as
prefix/suffix when printing 'Detaching...' messages. Print
them when 'print_inferior_events' is on.
* remote.c (remote_detach_1): Print message when detaching
from inferior and '!is_fork_parent'.
gdb/testsuite/ChangeLog:
2018-04-24 Jan Kratochvil <jan.kratochvil@redhat.com>
Sergio Durigan Junior <sergiodj@redhat.com>
Pedro Alves <palves@redhat.com>
* gdb.base/attach-non-pgrp-leader.exp: Adjust 'Detaching...'
regexps to expect for '[Inferior ... detached]' as well.
* gdb.base/attach.exp: Likewise.
* gdb.base/catch-syscall.exp (check_for_program_end): Adjust
"gdb_continue_to_end".
(test_catch_syscall_with_wrong_args): Likewise.
* gdb.base/foll-fork.exp: Adjust regexps to match '[' and
']'. Don't set 'verbose' on.
* gdb.base/foll-vfork.exp: Likewise.
* gdb.base/fork-print-inferior-events.c: New file.
* gdb.base/fork-print-inferior-events.exp: New file.
* gdb.base/hook-stop.exp: Adjust regexps to expect for new
'[Inferior ... has been killed]' message.
* gdb.base/kill-after-signal.exp: Likewise.
* gdb.base/solib-overlap.exp: Adjust regexps to expect for new
detach message.
* gdb.threads/kill.exp: Adjust regexps to expect for new kill
message.
* gdb.threads/clone-attach-detach.exp: Adjust 'Detaching...'
regexps to expect for '[Inferior ... detached]' as well.
* gdb.threads/process-dies-while-detaching.exp: Likewise.
|
||
Markus Metzger
|
1d509aa625 |
infrun: step through indirect branch thunks
With version 7.3 GCC supports new options
-mindirect-branch=<choice>
-mfunction-return=<choice>
The choices are:
keep behaves as before
thunk jumps through a thunk
thunk-external jumps through an external thunk
thunk-inline jumps through an inlined thunk
For thunk and thunk-external, GDB would, on a call to the thunk, step into
the thunk and then resume to its caller assuming that this is an
undebuggable function. On a return thunk, GDB would stop inside the
thunk.
Make GDB step through such thunks instead.
Before:
Temporary breakpoint 1, main ()
at gdb.base/step-indirect-call-thunk.c:37
37 x = apply (inc, 41);
(gdb) s
apply (op=0x80483e6 <inc>, x=41)
at gdb.base/step-indirect-call-thunk.c:29
29 return op (x);
(gdb)
30 }
After:
Temporary breakpoint 1, main ()
at gdb.base/step-indirect-call-thunk.c:37
37 x = apply (inc, 41);
(gdb) s
apply (op=0x80483e6 <inc>, x=41)
at gdb.base/step-indirect-call-thunk.c:29
29 return op (x);
(gdb)
inc (x=41) at gdb.base/step-indirect-call-thunk.c:23
23 return x + 1;
This is independent of the step-mode. In order to step into the thunk,
you would need to use stepi.
When stepping over an indirect call thunk, GDB would first step through
the thunk, then recognize that it stepped into a sub-routine and resume to
the caller (of the thunk). Not sure whether this is worth optimizing.
Thunk detection is implemented via gdbarch. I implemented the methods for
IA. Other architectures may run into unexpected fails.
The tests assume a fixed number of instruction steps to reach a thunk.
This depends on the compiler as well as the architecture. They may need
adjustments when we add support for more architectures. Or we can simply
drop those tests that cover being able to step into thunks using
instruction stepping.
When using an older GCC, the tests will fail to build and will be reported
as untested:
Running .../gdb.base/step-indirect-call-thunk.exp ...
gdb compile failed, \
gcc: error: unrecognized command line option '-mindirect-branch=thunk'
gcc: error: unrecognized command line option '-mfunction-return=thunk'
=== gdb Summary ===
# of untested testcases 1
gdb/
* infrun.c (process_event_stop_test): Call
gdbarch_in_indirect_branch_thunk.
* gdbarch.sh (in_indirect_branch_thunk): New.
* gdbarch.c: Regenerated.
* gdbarch.h: Regenerated.
* x86-tdep.h: New.
* x86-tdep.c: New.
* Makefile.in (ALL_TARGET_OBS): Add x86-tdep.o.
(HFILES_NO_SRCDIR): Add x86-tdep.h.
(ALLDEPFILES): Add x86-tdep.c.
* arch-utils.h (default_in_indirect_branch_thunk): New.
* arch-utils.c (default_in_indirect_branch_thunk): New.
* i386-tdep: Include x86-tdep.h.
(i386_in_indirect_branch_thunk): New.
(i386_elf_init_abi): Set in_indirect_branch_thunk gdbarch
function.
* amd64-tdep: Include x86-tdep.h.
(amd64_in_indirect_branch_thunk): New.
(amd64_init_abi): Set in_indirect_branch_thunk gdbarch function.
testsuite/
* gdb.base/step-indirect-call-thunk.exp: New.
* gdb.base/step-indirect-call-thunk.c: New.
* gdb.reverse/step-indirect-call-thunk.exp: New.
* gdb.reverse/step-indirect-call-thunk.c: New.
|
||
|
Pedro Alves
|
731f534f91 |
Replace finish_thread_state_cleanup with a RAII class
gdb/ChangeLog: 2018-04-10 Pedro Alves <palves@redhat.com> * gdbthread.h (finish_thread_state_cleanup): Delete declaration. (scoped_finish_thread_state): New class. * infcmd.c (run_command_1): Use it instead of finish_thread_state cleanup. * infrun.c (proceed, prepare_for_detach, wait_for_inferior) (fetch_inferior_event, normal_stop): Likewise. * thread.c (finish_thread_state_cleanup): Delete. |
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Simon Marchi
|
6f14adc558 |
Replace make_cleanup_restore_current_traceframe with RAII class
I put the constructor in tracepoint.c because it needs to read traceframe_number, and I prefer to do that than to expose traceframe_number. gdb/ChangeLog: * tracepoint.c (struct current_traceframe_cleanup): Remove. (do_restore_current_traceframe_cleanup): Remove. (restore_current_traceframe_cleanup_dtor): Remove. (make_cleanup_restore_current_traceframe): Remove. (scoped_restore_current_traceframe::scoped_restore_current_traceframe): New. * tracepoint.h (struct scoped_restore_current_traceframe): New. * infrun.c (fetch_inferior_event): Use scoped_restore_current_traceframe. |
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|
Tom Tromey
|
76727919ce |
Convert observers to C++
This converts observers from using a special source-generating script to be plain C++. This version of the patch takes advantage of C++11 by using std::function and variadic templates; incorporates Pedro's patches; and renames the header file to "observable.h" (this change eliminates the need for a clean rebuild). Note that Pedro's patches used a template lambda in tui-hooks.c, but this failed to compile on some buildbot instances (presumably due to differing C++ versions); I replaced this with an ordinary template function. Regression tested on the buildbot. gdb/ChangeLog 2018-03-19 Pedro Alves <palves@redhat.com> Tom Tromey <tom@tromey.com> * unittests/observable-selftests.c: New file. * common/observable.h: New file. * observable.h: New file. * ada-lang.c, ada-tasks.c, agent.c, aix-thread.c, annotate.c, arm-tdep.c, auto-load.c, auxv.c, break-catch-syscall.c, breakpoint.c, bsd-uthread.c, cli/cli-interp.c, cli/cli-setshow.c, corefile.c, dummy-frame.c, event-loop.c, event-top.c, exec.c, extension.c, frame.c, gdbarch.c, guile/scm-breakpoint.c, infcall.c, infcmd.c, inferior.c, inflow.c, infrun.c, jit.c, linux-tdep.c, linux-thread-db.c, m68klinux-tdep.c, mi/mi-cmd-break.c, mi/mi-interp.c, mi/mi-main.c, objfiles.c, ppc-linux-nat.c, ppc-linux-tdep.c, printcmd.c, procfs.c, python/py-breakpoint.c, python/py-finishbreakpoint.c, python/py-inferior.c, python/py-unwind.c, ravenscar-thread.c, record-btrace.c, record-full.c, record.c, regcache.c, remote.c, riscv-tdep.c, sol-thread.c, solib-aix.c, solib-spu.c, solib.c, spu-multiarch.c, spu-tdep.c, stack.c, symfile-mem.c, symfile.c, symtab.c, thread.c, top.c, tracepoint.c, tui/tui-hooks.c, tui/tui-interp.c, valops.c: Update all users. * tui/tui-hooks.c (tui_bp_created_observer) (tui_bp_deleted_observer, tui_bp_modified_observer) (tui_inferior_exit_observer, tui_before_prompt_observer) (tui_normal_stop_observer, tui_register_changed_observer): Remove. (tui_observers_token): New global. (attach_or_detach, tui_attach_detach_observers): New functions. (tui_install_hooks, tui_remove_hooks): Use tui_attach_detach_observers. * record-btrace.c (record_btrace_thread_observer): Remove. (record_btrace_thread_observer_token): New global. * observer.sh: Remove. * observer.c: Rename to observable.c. * observable.c (namespace gdb_observers): Define new objects. (observer_debug): Move into gdb_observers namespace. (struct observer, struct observer_list, xalloc_observer_list_node) (xfree_observer_list_node, generic_observer_attach) (generic_observer_detach, generic_observer_notify): Remove. (_initialize_observer): Update. Don't include observer.inc. * Makefile.in (generated_files): Remove observer.h, observer.inc. (clean mostlyclean): Likewise. (observer.h, observer.inc): Remove targets. (SUBDIR_UNITTESTS_SRCS): Add observable-selftests.c. (COMMON_SFILES): Use observable.c, not observer.c. * .gitignore: Remove observer.h. gdb/doc/ChangeLog 2018-03-19 Tom Tromey <tom@tromey.com> * observer.texi: Remove. gdb/testsuite/ChangeLog 2018-03-19 Tom Tromey <tom@tromey.com> * gdb.gdb/observer.exp: Remove. |
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|
Simon Marchi
|
564b1e3f29 |
C++ify program_space
This patch makes program_space a C++ object by adding a constructor/destructor, giving default values to fields, and using new/delete. gdb/ChangeLog: * progspace.h (struct program_space): Add constructor and destructor, initialize fields. (add_program_space): Remove. * progspace.c (add_program_space): Rename to... (program_space::program_space): ... this. (release_program_space): Rename to... (program_space::~program_space): ... this. (delete_program_space): Use delete to delete program_space. (initialize_progspace): Use new to allocate program_space. * inferior.c (add_inferior_with_spaces): Likewise. (clone_inferior_command): Likewise. * infrun.c (follow_fork_inferior): Likewise. (handle_vfork_child_exec_or_exit): Likewise. |
||
Yao Qi
|
daf6667d1f |
Class readonly_detached_regcache
This patch adds a new class (type) for readonly regcache, which is created via regcache::save. readonly_detached_regcache inherits readable_regcache. gdb: 2018-02-21 Yao Qi <yao.qi@linaro.org> * dummy-frame.c (dummy_frame_cache) <prev_regcache>: Use readonly_detached_regcache. (dummy_frame_prev_register): Use regcache->cooked_read. * frame.c (frame_save_as_regcache): Change return type. (frame_pop): Update. * frame.h (frame_save_as_regcache): Update declaration. * inferior.h (get_infcall_suspend_state_regcache): Update declaration. * infrun.c (infcall_suspend_state) <registers>: use readonly_detached_regcache. (save_infcall_suspend_state): Don't use regcache_dup. (get_infcall_suspend_state_regcache): Change return type. * linux-fork.c (struct fork_info) <savedregs>: Change to readonly_detached_regcache. <pc>: New field. (fork_save_infrun_state): Don't use regcache_dup. (info_checkpoints_command): Adjust. * mi/mi-main.c (register_changed_p): Update declaration. (mi_cmd_data_list_changed_registers): Use readonly_detached_regcache. (register_changed_p): Change parameter type to readonly_detached_regcache. * ppc-linux-tdep.c (ppu2spu_cache) <regcache>: Use readonly_detached_regcache. (ppu2spu_sniffer): Construct a new readonly_detached_regcache. * regcache.c (readonly_detached_regcache::readonly_detached_regcache): New. (regcache::save): Move it to reg_buffer. (regcache::restore): Change parameter type. (regcache_dup): Remove. * regcache.h (reg_buffer) <save>: New method. (readonly_detached_regcache): New class. * spu-tdep.c (spu2ppu_cache) <regcache>: Use readonly_detached_regcache. (spu2ppu_sniffer): Construct a new readonly_detached_regcache. |
||
|
Yao Qi
|
fc5b873615 |
Remove regcache_save and regcache_cpy
... instead we start to use regcache methods save and restore. It is quite straightforward to replace regcache_save with regcache->save. regcache_cpy has some asserts, some of them not necessary, like gdb_assert (src != dst); because we already assert !m_readonly_p and src->m_readonly_p, so src isn't dst. Some of the asserts are moved to ::restore. gdb: 2018-02-21 Yao Qi <yao.qi@linaro.org> * frame.c (frame_save_as_regcache): Use regcache method save. (frame_pop): Use regcache method restore. * infrun.c (restore_infcall_suspend_state): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. * ppc-linux-tdep.c (ppu2spu_sniffer): User regcache method save. * regcache.c (regcache_save): Remove. (regcache::restore): More asserts. (regcache_cpy): Remove. * regcache.h (regcache_save): Remove the declaration. (regcache::restore): Move from private to public. Remove the friend declaration of regcache_cpy. (regcache_cpy): Remove declaration. |
||
|
Tom Tromey
|
797bc1cb25 |
Return unique_xmalloc_ptr from some solib.c functions
This changes a couple of solib.c functions -- exec_file_find and solib_find -- to return a unique_xmalloc_ptr, and then fixes up the users. This allows the removal of some cleanups. This also changes solib_bfd_open to not take ownership of its argument. I think this change is somewhat cleaner. gdb/ChangeLog 2018-02-14 Tom Tromey <tom@tromey.com> * solist.h (exec_file_find, solib_find): Return unique_xmalloc_ptr. (solib_bfd_fopen): Take a const char *. * solib.c (solib_find_1): Return unique_xmalloc_ptr. (exec_file_find, solib_find): Likewise. (solib_bfd_fopen): Do not take ownership of "pathname". (solib_bfd_open): Use unique_xmalloc_ptr. * solib-darwin.c (darwin_bfd_open): Use unique_xmalloc_ptr. * solib-aix.c (solib_aix_bfd_open): Use unique_xmalloc_ptr. * infrun.c (follow_exec): Use unique_xmalloc_ptr. * exec.c (exec_file_locate_attach): Use unique_xmalloc_ptr. |
||
|
Simon Marchi
|
6e1e1966ba |
Pass inferior down to target_detach and to_detach
The to_detach target_ops method implementations are currently expected to work on current_inferior/inferior_ptid. In order to make things more explicit, and remove some "shadow" parameter passing through globals, this patch adds an "inferior" parameter to to_detach. Implementations will be expected to use this instead of relying on the global. However, to keep things simple, this patch only does the minimum that is necessary to add the parameter. The following patch gives an example of how one such implementation would be adapted. If the approach is deemed good, we can then look into adapting more implementations. Until then, they'll continue to work as they do currently. gdb/ChangeLog: * target.h (struct target_ops) <to_detach>: Add inferior parameter. (target_detach): Likewise. * target.c (dispose_inferior): Pass inferior down. (target_detach): Pass inferior down. Assert that it is equal to the current inferior. * aix-thread.c (aix_thread_detach): Pass inferior down. * corefile.c (core_file_command): Pass current_inferior() down. * corelow.c (core_detach): Add inferior parameter. * darwin-nat.c (darwin_detach): Likewise. * gnu-nat.c (gnu_detach): Likewise. * inf-ptrace.c (inf_ptrace_detach): Likewise. * infcmd.c (detach_command): Pass current_inferior() down to target_detach. * infrun.c (follow_fork_inferior): Pass parent_inf to target_detach. (handle_vfork_child_exec_or_exit): Pass inf->vfork_parent to target_detach. * linux-nat.c (linux_nat_detach): Add inferior parameter. * linux-thread-db.c (thread_db_detach): Likewise. * nto-procfs.c (procfs_detach): Likewise. * procfs.c (procfs_detach): Likewise. * record.c (record_detach): Likewise. * record.h (struct inferior): Forward-declare. (record_detach): Add inferior parameter. * remote-sim.c (gdbsim_detach): Likewise. * remote.c (remote_detach_1): Likewise. (remote_detach): Likewise. (extended_remote_detach): Likewise. * sol-thread.c (sol_thread_detach): Likewise. * target-debug.h (target_debug_print_inferior_p): New macro. * target-delegates.c: Re-generate. * top.c (kill_or_detach): Pass inferior down to target_detach. * windows-nat.c (windows_detach): Add inferior parameter. |
||
|
Simon Marchi
|
6bd6f3b656 |
Remove args from target detach
I was looking into adding a parameter to target_detach, and was
wondering what the args parameter was. It seems like in the distant
past, it was possible to specify a signal number when detaching. That
signal was injected in the process before it was detached. There is an
example of code handling this in linux_nat_detach. With today's GDB, I
can't get this to work. Doing "detach 15" (15 == SIGTERM) doesn't work,
because detach is a prefix command and doesn't recognize the sub-command
15. Doing "detach inferiors 15" doesn't work because it expects a list
of inferior id to detach. Therefore, I don't think there's a way of
invoking detach_command with a non-NULL args. I also didn't find any
documentation related to this feature.
I assume that this feature stopped working when detach was made a prefix
command, which is in
|
||
Andreas Arnez
|
bdf2a94aa5 |
Fix GDB hang with remote after error from resume
Since this commit -- Fix PR18360 - internal error when using "interrupt -a" (https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=c65d6b55) -- the testsuite shows long delays on s390 with native-gdbserver when executing certain tests, such as watchpoints.exp. These hangs have been discussed before in the context of buildbot problems, see here: https://sourceware.org/ml/gdb-patches/2017-12/msg00413.html The problem can easily be triggered by stopping on a breakpoint, then setting impossible watchpoints, and finally doing "continue". Then, after having set the step-over state (in keep_going_pass_signal in infrun.c), GDB tries to insert breakpoints and watchpoints into the inferior. This fails, and the "continue" command is aborted. But the step-over state is not cleared in this case, which causes future step-over attempts to be skipped since GDB thinks that "we already have an in-line step-over operation ongoing" (see start_step_over in infrun.c). Thus the next "continue" just goes on to wait for events from the remote, which will never occur. The problem can also be reproduced on amd64 with native-gdbserver, using the following change to watchpoints.exp: -- >8 -- --- a/gdb/testsuite/gdb.base/watchpoints.exp +++ b/gdb/testsuite/gdb.base/watchpoints.exp @@ -61,2 +61,3 @@ with_test_prefix "before inferior start" { gdb_test "watch ival3" ".*" "" + gdb_test "watch *(char \[256\] *) main" -- >8 -- To fix the hang, this patch clears the step-over info when insert_breakpoints has failed. Of course, with native-gdbserver the watchpoints.exp test case still causes many FAILs on s390, because gdbserver does not support watchpoints for that target. This is a separate issue. gdb/ChangeLog: 2018-01-12 Andreas Arnez <arnez@linux.vnet.ibm.com> * infrun.c (keep_going_pass_signal): Clear step-over info when insert_breakpoints fails. |
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|
Pedro Alves
|
71d378ae60 |
gdb.base/breakpoint-in-ro-region.exp regression on sss targets (PR gdb/22583)
As Maciej reported at <https://sourceware.org/ml/gdb-patches/2017-12/msg00212.html>, this commit: commit |
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|
Pedro Alves
|
de63c46b54 |
Fix regresssion(internal-error) printing subprogram argument (PR gdb/22670)
At <https://sourceware.org/ml/gdb-patches/2017-12/msg00298.html>, Joel wrote: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Consider the following code which first declares a tagged type (the equivalent of a class in Ada), and then a procedure which takes a pointer (access) to this type's 'Class. package Pck is type Top_T is tagged record N : Integer := 1; end record; procedure Inspect (Obj: access Top_T'Class); end Pck; Putting a breakpoint in that procedure and then running to it triggers an internal error: (gdb) break inspect (gdb) continue Breakpoint 1, pck.inspect (obj=0x63e010 /[...]/gdb/stack.c:621: internal-error: void print_frame_args(symbol*, frame_info*, int, ui_file*): Assertion `nsym != NULL' failed. What's special about this subprogram is that it takes an access to what we call a 'Class type, and for implementation reasons, the compiler adds an extra argument named "objL". If you are curious why, it allows the compiler for perform dynamic accessibility checks that are mandated by the language. If we look at the location where we get the internal error (in stack.c), we find that we are looping over the symbol of each parameter, and for each parameter, we do: /* We have to look up the symbol because arguments can have two entries (one a parameter, one a local) and the one we want is the local, which lookup_symbol will find for us. [...] nsym = lookup_symbol (SYMBOL_LINKAGE_NAME (sym), b, VAR_DOMAIN, NULL).symbol; gdb_assert (nsym != NULL); The lookup_symbol goes through the lookup structure, which means the symbol's linkage name ("objL") gets transformed into a lookup_name_info object (in block_lookup_symbol), before it gets fed to the block symbol dictionary iterators. This, in turn, triggers the symbol matching by comparing the "lookup" name which, for Ada, means among other things, lowercasing the given name to "objl". It is this transformation that causes the lookup find no matches, and therefore trip this assertion. Going back to the "offending" call to lookup_symbol in stack.c, what we are trying to do, here, is do a lookup by linkage name. So, I think what we mean to be doing is a completely literal symbol lookup, so maybe not even strcmp_iw, but actually just plain strcmp??? In the past, in practice, you could get that effect by doing a lookup using the C language. But that doesn't work, because we still end up somehow using Ada's lookup_name routine which transforms "objL". So, ideally, as I hinted before, I think what we need is a way to perform a literal lookup so that searches by linkage names like the above can be performed. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This commit fixes the problem by implementing something similar to Joel's literal idea, but with some important differences. I considered adding a symbol_name_match_type::LINKAGE and supporting searching by linkage name for any language, but the problem with that is that the dictionaries only work with SYMBOL_SEARCH_NAME, because that's what is used for hashing. We'd need separate dictionaries for hashed linkage names. So with the current symbol tables infrastructure, it's not literal linkage names that we want to pass down, but instead literal _search_ names (SYMBOL_SEARCH_NAME, etc.). However, psymbols have no overload/function parameter info in C++, so a straight strcmp doesn't work properly for C++ name matching. So what we do is be a little less aggressive then and add a new symbol_name_match_type::SEARCH_SYMBOL instead that takes as input a non-user-input search symbol, and then we skip any decoding/demangling steps and make: - Ada treat that as a verbatim match, - other languages treat it as symbol_name_match_type::FULL. This also fixes the new '"maint check-psymtabs" for Ada' testcase for me (gdb.ada/maint_with_ada.exp). I've not removed the kfail yet because Joel still sees that testcase failing with this patch. That'll be fixed in follow up patches. gdb/ChangeLog: 2018-01-05 Pedro Alves <palves@redhat.com> PR gdb/22670 * ada-lang.c (literal_symbol_name_matcher): New function. (ada_get_symbol_name_matcher): Use it for symbol_name_match_type::SEARCH_NAME. * block.c (block_lookup_symbol): New parameter 'match_type'. Pass it down instead of assuming symbol_name_match_type::FULL. * block.h (block_lookup_symbol): New parameter 'match_type'. * c-valprint.c (print_unpacked_pointer): Use lookup_symbol_search_name instead of lookup_symbol. * compile/compile-object-load.c (get_out_value_type): Pass down symbol_name_match_type::SEARCH_NAME. * cp-namespace.c (cp_basic_lookup_symbol): Pass down symbol_name_match_type::FULL. * cp-support.c (cp_get_symbol_name_matcher): Handle symbol_name_match_type::SEARCH_NAME. * infrun.c (insert_exception_resume_breakpoint): Use lookup_symbol_search_name. * p-valprint.c (pascal_val_print): Use lookup_symbol_search_name. * psymtab.c (maintenance_check_psymtabs): Use symbol_name_match_type::SEARCH_NAME and SYMBOL_SEARCH_NAME. * stack.c (print_frame_args): Use lookup_symbol_search_name and SYMBOL_SEARCH_NAME. * symtab.c (lookup_local_symbol): Don't demangle the lookup name if symbol_name_match_type::SEARCH_NAME. (lookup_symbol_in_language): Pass down symbol_name_match_type::FULL. (lookup_symbol_search_name): New. (lookup_language_this): Pass down symbol_name_match_type::SEARCH_NAME. (lookup_symbol_aux, lookup_local_symbol): New parameter 'match_type'. Pass it down. * symtab.h (symbol_name_match_type::SEARCH_NAME): New enumerator. (lookup_symbol_search_name): New declaration. (lookup_symbol_in_block): New 'match_type' parameter. gdb/testsuite/ChangeLog: 2018-01-05 Joel Brobecker <brobecker@adacore.com> PR gdb/22670 * gdb.ada/access_tagged_param.exp: New file. * gdb.ada/access_tagged_param/foo.adb: New file. |
||
|
Joel Brobecker
|
e2882c8578 |
Update copyright year range in all GDB files
gdb/ChangeLog:
Update copyright year range in all GDB files
|
||
|
Sergio Durigan Junior
|
935676c92f |
Convert generic probe interface to C++ (and perform some cleanups)
This patch converts the generic probe interface (gdb/probe.[ch]) to C++, and also performs some cleanups that were on my TODO list for a while. The main changes were the conversion of 'struct probe' to 'class probe', and 'struct probe_ops' to 'class static_probe_ops'. The former now contains all the "dynamic", generic methods that act on a probe + the generic data related to it; the latter encapsulates a bunch of "static" methods that relate to the probe type, but not to a specific probe itself. I've had to do a few renamings (e.g., on 'struct bound_probe' the field is called 'probe *prob' now, instead of 'struct probe *probe') because GCC was complaining about naming the field using the same name as the class. Nothing major, though. Generally speaking, the logic behind and the design behind the code are the same. Even though I'm sending a series of patches, they need to be tested and committed as a single unit, because of inter-dependencies. But it should be easier to review in separate logical units. I've regtested this patch on BuildBot, no regressions found. gdb/ChangeLog: 2017-11-22 Sergio Durigan Junior <sergiodj@redhat.com> * break-catch-throw.c (fetch_probe_arguments): Use 'probe.prob' instead of 'probe.probe'. * breakpoint.c (create_longjmp_master_breakpoint): Call 'can_evaluate_arguments' and 'get_relocated_address' methods from probe. (create_exception_master_breakpoint): Likewise. (add_location_to_breakpoint): Use 'sal->prob' instead of 'sal->probe'. (bkpt_probe_insert_location): Call 'set_semaphore' method from probe. (bkpt_probe_remove_location): Likewise, for 'clear_semaphore'. * elfread.c (elf_get_probes): Use 'static_probe_ops' instead of 'probe_ops'. (probe_key_free): Call 'delete' on probe. (check_exception_resume): Use 'probe.prob' instead of 'probe.probe'. * location.c (string_to_event_location_basic): Call 'probe_linespec_to_static_ops'. * probe.c (class any_static_probe_ops): New class. (any_static_probe_ops any_static_probe_ops): New variable. (parse_probes_in_pspace): Receive 'static_probe_ops' as argument. Adjust code to reflect change. (parse_probes): Use 'static_probe_ops' instead of 'probe_ops'. Adjust code to reflect change. (find_probes_in_objfile): Call methods to get name and provider from probe. (find_probe_by_pc): Use 'result.prob' instead of 'result.probe'. Call 'get_relocated_address' method from probe. (collect_probes): Adjust comment and argument list to receive 'static_probe_ops' instead of 'probe_ops'. Adjust code to reflect change. Call necessary methods from probe. (compare_probes): Call methods to get name and provider from probes. (gen_ui_out_table_header_info): Receive 'static_probe_ops' instead of 'probe_ops'. Use 'std::vector' instead of VEC, adjust code accordingly. (print_ui_out_not_applicables): Likewise. (info_probes_for_ops): Rename to... (info_probes_for_spops): ...this. Receive 'static_probe_ops' as argument instead of 'probe_ops'. Adjust code. Call necessary methods from probe. (info_probes_command): Use 'info_probes_for_spops'. (enable_probes_command): Pass correct argument to 'collect_probes'. Call methods from probe. (disable_probes_command): Likewise. (get_probe_address): Move to 'any_static_probe_ops::get_address'. (get_probe_argument_count): Move to 'any_static_probe_ops::get_argument_count'. (can_evaluate_probe_arguments): Move to 'any_static_probe_ops::can_evaluate_arguments'. (evaluate_probe_argument): Move to 'any_static_probe_ops::evaluate_argument'. (probe_safe_evaluate_at_pc): Use 'probe.prob' instead of 'probe.probe'. (probe_linespec_to_ops): Rename to... (probe_linespec_to_static_ops): ...this. Adjust code. (probe_any_is_linespec): Rename to... (any_static_probe_ops::is_linespec): ...this. (probe_any_get_probes): Rename to... (any_static_probe_ops::get_probes): ...this. (any_static_probe_ops::type_name): New method. (any_static_probe_ops::gen_info_probes_table_header): New method. (compute_probe_arg): Use 'pc_probe.prob' instead of 'pc_probe.probe'. Call methods from probe. (compile_probe_arg): Likewise. (std::vector<const probe_ops *> all_probe_ops): Delete. (std::vector<const static_probe_ops *> all_static_probe_ops): New variable. (_initialize_probe): Use 'all_static_probe_ops' instead of 'all_probe_ops'. * probe.h (struct info_probe_column) <field_name>: Delete extraneous newline (info_probe_column_s): Delete type and VEC. (struct probe_ops): Delete. Replace with... (class static_probe_ops): ...this and... (clas probe): ...this. (struct bound_probe) <bound_probe>: Delete extraneous newline. Adjust constructor to receive 'probe' instead of 'struct probe'. <probe>: Rename to... <prob>: ...this. Delete extraneous newline. <objfile>: Delete extraneous newline. (register_probe_ops): Delete unused prototype. (info_probes_for_ops): Rename to... (info_probes_for_spops): ...this. Adjust comment. (get_probe_address): Move to 'probe::get_address'. (get_probe_argument_count): Move to 'probe::get_argument_count'. (can_evaluate_probe_arguments): Move to 'probe::can_evaluate_arguments'. (evaluate_probe_argument): Move to 'probe::evaluate_argument'. * solib-svr4.c (struct svr4_info): Adjust comment. (struct probe_and_action) <probe>: Rename to... <prob>: ...this. (register_solib_event_probe): Receive 'probe' instead of 'struct probe' as argument. Use 'prob' instead of 'probe' when applicable. (solib_event_probe_action): Call 'get_argument_count' method from probe. Adjust comment. (svr4_handle_solib_event): Adjust comment. Call 'evaluate_argument' method from probe. (svr4_create_probe_breakpoints): Call 'get_relocated_address' from probe. (svr4_create_solib_event_breakpoints): Use 'probe' instead of 'struct probe'. Call 'can_evaluate_arguments' from probe. * symfile.h: Forward declare 'class probe' instead of 'struct probe'. * symtab.h: Likewise. (struct symtab_and_line) <probe>: Rename to... <prob>: ...this. * tracepoint.c (start_tracing): Use 'prob' when applicable. Call probe methods. (stop_tracing): Likewise. |
||
|
Pedro Alves
|
d930703d68 |
Don't ever Quit out of resume
If you have a breakpoint command that re-resumes the target, like:
break foo
commands
> c
> end
and then let the inferior run, hitting the breakpoint, and then press
Ctrl-C at just the right time, between GDB processing the stop at
"foo", and re-resuming the target, you'll hit the QUIT call in
infrun.c:resume.
With this hack, we can reproduce the bad case consistently:
--- a/gdb/inf-loop.c
+++ b/gdb/inf-loop.c
@@ -31,6 +31,8 @@
#include "top.h"
#include "observer.h"
+bool continue_hack;
+
/* General function to handle events in the inferior. */
void
@@ -64,6 +66,8 @@ inferior_event_handler (enum inferior_event_type event_type,
{
check_frame_language_change ();
+ continue_hack = true;
+
/* Don't propagate breakpoint commands errors. Either we're
stopping or some command resumes the inferior. The user will
be informed. */
diff --git a/gdb/infrun.c b/gdb/infrun.c
index d425664..c74b14c 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -2403,6 +2403,10 @@ resume (enum gdb_signal sig)
gdb_assert (!tp->stop_requested);
gdb_assert (!thread_is_in_step_over_chain (tp));
+ extern bool continue_hack;
+
+ if (continue_hack)
+ set_quit_flag ();
QUIT;
The GDB backtrace looks like this:
(top-gdb) bt
...
#3 0x0000000000612e8b in throw_quit(char const*, ...) (fmt=0xaf84a1 "Quit") at src/gdb/common/common-exceptions.c:408
#4 0x00000000007fc104 in quit() () at src/gdb/utils.c:748
#5 0x00000000006a79d2 in default_quit_handler() () at src/gdb/event-top.c:954
#6 0x00000000007fc134 in maybe_quit() () at src/gdb/utils.c:762
#7 0x00000000006f66a3 in resume(gdb_signal) (sig=GDB_SIGNAL_0) at src/gdb/infrun.c:2406
#8 0x0000000000700c3d in keep_going_pass_signal(execution_control_state*) (ecs=0x7ffcf3744e60) at src/gdb/infrun.c:7793
#9 0x00000000006f5fcd in start_step_over() () at src/gdb/infrun.c:2145
#10 0x00000000006f7b1f in proceed(unsigned long, gdb_signal) (addr=18446744073709551615, siggnal=GDB_SIGNAL_DEFAULT)
at src/gdb/infrun.c:3135
#11 0x00000000006ebdd4 in continue_1(int) (all_threads=0) at src/gdb/infcmd.c:842
#12 0x00000000006ec097 in continue_command(char*, int) (args=0x0, from_tty=0) at src/gdb/infcmd.c:938
#13 0x00000000004b5140 in do_cfunc(cmd_list_element*, char*, int) (c=0x2d18570, args=0x0, from_tty=0)
at src/gdb/cli/cli-decode.c:106
#14 0x00000000004b8219 in cmd_func(cmd_list_element*, char*, int) (cmd=0x2d18570, args=0x0, from_tty=0)
at src/gdb/cli/cli-decode.c:1952
#15 0x00000000007f1532 in execute_command(char*, int) (p=0x7ffcf37452b1 "", from_tty=0) at src/gdb/top.c:608
#16 0x00000000004bd127 in execute_control_command(command_line*) (cmd=0x3a88ef0) at src/gdb/cli/cli-script.c:485
#17 0x00000000005cae0c in bpstat_do_actions_1(bpstat*) (bsp=0x37edcf0) at src/gdb/breakpoint.c:4513
#18 0x00000000005caf67 in bpstat_do_actions() () at src/gdb/breakpoint.c:4563
#19 0x00000000006e8798 in inferior_event_handler(inferior_event_type, void*) (event_type=INF_EXEC_COMPLETE, client_data=0x0)
at src/gdb/inf-loop.c:72
#20 0x00000000006f9447 in fetch_inferior_event(void*) (client_data=0x0) at src/gdb/infrun.c:3970
#21 0x00000000006e870e in inferior_event_handler(inferior_event_type, void*) (event_type=INF_REG_EVENT, client_data=0x0)
at src/gdb/inf-loop.c:43
#22 0x0000000000494d58 in remote_async_serial_handler(serial*, void*) (scb=0x3585ca0, context=0x2cd1b80)
at src/gdb/remote.c:13820
#23 0x000000000044d682 in run_async_handler_and_reschedule(serial*) (scb=0x3585ca0) at src/gdb/ser-base.c:137
#24 0x000000000044d767 in fd_event(int, void*) (error=0, context=0x3585ca0) at src/gdb/ser-base.c:188
#25 0x00000000006a5686 in handle_file_event(file_handler*, int) (file_ptr=0x45997d0, ready_mask=1)
at src/gdb/event-loop.c:733
#26 0x00000000006a5c29 in gdb_wait_for_event(int) (block=1) at src/gdb/event-loop.c:859
#27 0x00000000006a4aa6 in gdb_do_one_event() () at src/gdb/event-loop.c:347
#28 0x00000000006a4ade in start_event_loop() () at src/gdb/event-loop.c:371
and when that happens, you end up with GDB's run control in quite a
messed up state. Something like this:
thread_function1 (arg=0x1) at threads.c:107
107 usleep (SLEEP); /* Loop increment. */
Quit
(gdb) c
Continuing.
** nothing happens, time passes..., press ctrl-c again **
^CQuit
(gdb) info threads
Id Target Id Frame
1 Thread 1462.1462 "threads" (running)
* 2 Thread 1462.1466 "threads" (running)
3 Thread 1462.1465 "function0" (running)
(gdb) c
Cannot execute this command while the selected thread is running.
(gdb)
The first "Quit" above is thrown from within "resume", and cancels run
control while GDB is in the middle of stepping over a breakpoint.
with step_over_info_valid_p() true. The next "c" didn't actually
resume anything, because GDB throught that the step-over was still in
progress. It wasn't, because the thread that was supposed to be
stepping over the breakpoint wasn't actually resumed.
So at this point, we press Ctrl-C again, and this time, the default
quit handler is called directly from the event loop
(event-top.c:default_quit_handler -> quit()), because gdb was left
owning the terminal (because the previous resume was cancelled before
we reach target_resume -> target_terminal::inferior()).
Note that the exception called from within resume ends up calling
normal_stop via resume_cleanups. That's very borked though, because
normal_stop is going to re-handle whatever was the last reported
event, possibly even re-running a hook stop... I think that the only
sane way to safely cancel the run control state machinery is to push
an event via handle_inferior_event like all other events.
The fix here does two things, and either alone would fix the problem
at hand:
#1 - passes the terminal to the inferior earlier, so that any QUIT
call from the point we declare the target as running goes to the
inferior directly, protecting run control from unsafe QUIT calls.
#2 - gets rid of this QUIT call in resume and of its related unsafe
resume_cleanups.
Aboout #2, the comment describing resume says:
/* Resume the inferior, but allow a QUIT. This is useful if the user
wants to interrupt some lengthy single-stepping operation
(for child processes, the SIGINT goes to the inferior, and so
we get a SIGINT random_signal, but for remote debugging and perhaps
other targets, that's not true).
but that's a really old comment that predates a lot of fixes to Ctrl-C
handling throughout both GDB core and the remote target, that made
sure that a Ctrl-C isn't ever lost. In any case, if some target
depended on this, a much better fix would be to make the target return
a SIGINT stop out of target_wait the next time that is called.
This was exposed by the new gdb.base/bp-cmds-continue-ctrl-c.exp
testcase added later in the series.
gdb/ChangeLog:
2017-11-16 Pedro Alves <palves@redhat.com>
* infrun.c (resume_cleanups): Delete.
(resume): No longer install a resume_cleanups cleanup nor call
QUIT.
(proceed): Pass the terminal to the inferior.
(keep_going_pass_signal): No longer install a resume_cleanups
cleanup.
|
||
|
Tom Tromey
|
eb4c3f4aaa |
Constify add_setshow_*
This constifies the add_setshow_* family of functions, and then fixes up the fallout. The bulk of this patch was written by script. gdb/ChangeLog 2017-11-07 Tom Tromey <tom@tromey.com> * ada-lang.c (catch_ada_exception_command): Constify. (catch_assert_command): Constify. * break-catch-throw.c (catch_catch_command, catch_throw_command) (catch_rethrow_command): Constify. (catch_exception_command_1): Constify. * breakpoint.h (add_catch_command): Constify. * break-catch-syscall.c (catch_syscall_command_1): Constify. (catch_syscall_split_args): Constify. * break-catch-sig.c (catch_signal_command): Constify. (catch_signal_split_args): Constify. * cli/cli-decode.h (struct cmd_list_element) <function>: Use cmd_const_sfunc_ftype. * cli/cli-decode.c (add_setshow_cmd_full): Constify. (add_setshow_enum_cmd, add_setshow_auto_boolean_cmd) (add_setshow_boolean_cmd, add_setshow_filename_cmd) (add_setshow_string_cmd, struct cmd_list_element) (add_setshow_optional_filename_cmd, add_setshow_integer_cmd) (add_setshow_uinteger_cmd, add_setshow_zinteger_cmd) (add_setshow_zuinteger_unlimited_cmd, add_setshow_zuinteger_cmd): Constify. (set_cmd_sfunc): Constify. (empty_sfunc): Constify. * command.h (add_setshow_enum_cmd, add_setshow_auto_boolean_cmd) (add_setshow_boolean_cmd, add_setshow_filename_cmd) (add_setshow_string_cmd, add_setshow_string_noescape_cmd) (add_setshow_optional_filename_cmd, add_setshow_integer_cmd) (add_setshow_uinteger_cmd, add_setshow_zinteger_cmd) (add_setshow_zuinteger_cmd, add_setshow_zuinteger_unlimited_cmd): Constify. (set_cmd_sfunc): Constify. (cmd_sfunc_ftype): Remove. * compile/compile.c (set_compile_args): Constify. * infrun.c (set_disable_randomization): Constify. * infcmd.c (set_args_command, set_cwd_command): Constify. * breakpoint.c (set_condition_evaluation_mode): Constify. (add_catch_command): Constify. (catch_fork_command_1, catch_exec_command_1) (catch_load_command_1, catch_unload_command_1): Constify. (catch_load_or_unload): Constify. * guile/scm-param.c (pascm_set_func): Constify. (add_setshow_generic): Constify. * python/py-param.c (get_set_value): Constify. * top.h (set_verbose): Constify. * tui/tui-win.c (tui_set_var_cmd): Constify. * mi/mi-main.c (set_mi_async_command): Constify. * cli/cli-logging.c (set_logging_overwrite) (set_logging_redirect): Constify. * value.c (set_max_value_size): Constify. * valprint.c (set_input_radix, set_output_radix): Constify. * utils.c (set_width_command, set_height_command): Constify. * typeprint.c (set_print_type_methods, set_print_type_typedefs): Constify. * tracepoint.c (set_disconnected_tracing) (set_circular_trace_buffer, set_trace_buffer_size) (set_trace_user, set_trace_notes, set_trace_stop_notes): Constify. * top.c (set_history_size_command, set_verbose, set_editing) (set_gdb_datadir, set_history_filename): Constify. * target.c (set_targetdebug, maint_set_target_async_command) (maint_set_target_non_stop_command, set_target_permissions) (set_write_memory_permission): Constify. (open_target): Constify. * target-descriptions.c (set_tdesc_filename_cmd): Constify. * target-dcache.c (set_stack_cache, set_code_cache): Constify. * symtab.c (set_symbol_cache_size_handler): Constify. * symfile.c (set_ext_lang_command): Constify. * symfile-debug.c (set_debug_symfile): Constify. * source.c (set_directories_command): Constify. * solib.c (reload_shared_libraries, gdb_sysroot_changed): Constify. * serial.c (set_parity): Constify. * rs6000-tdep.c (powerpc_set_soft_float, powerpc_set_vector_abi): Constify. * remote.c (set_remote_exec_file, set_remotebreak) (set_remote_protocol_Z_packet_cmd, set_range_stepping): Constify. * record.c (set_record_insn_history_size) (set_record_call_history_size): Constify. * record-full.c (set_record_full_insn_max_num): Constify. * proc-api.c (set_procfs_trace_cmd, set_procfs_file_cmd): Constify. * osabi.c (set_osabi): Constify. * mips-tdep.c (set_mips64_transfers_32bit_regs) (reinit_frame_cache_sfunc, mips_abi_update): Constify. * maint.c (maintenance_set_profile_cmd): Constify. * linux-thread-db.c (set_libthread_db_search_path): Constify. * language.c (set_language_command, set_range_command) (set_case_command): Constify. * infrun.c (set_non_stop, set_observer_mode) (set_stop_on_solib_events, set_schedlock_func) (set_exec_direction_func): Constify. * infcmd.c (set_inferior_tty_command): Constify. * disasm.c (set_disassembler_options_sfunc): Constify. * demangle.c (set_demangling_command): Constify. * dcache.c (set_dcache_size, set_dcache_line_size): Constify. * cris-tdep.c (set_cris_version, set_cris_mode) (set_cris_dwarf2_cfi): Constify. * corefile.c (set_gnutarget_command): Constify. * charset.c (set_host_charset_sfunc, set_target_charset_sfunc) (set_target_wide_charset_sfunc): Constify. * breakpoint.c (update_dprintf_commands): Constify. * auto-load.c (set_auto_load_dir, set_auto_load_safe_path): Constify. * arm-tdep.c (set_fp_model_sfunc, arm_set_abi) (set_disassembly_style_sfunc): Constify. * arch-utils.c (set_endian, set_architecture): Constify. * alpha-tdep.c (reinit_frame_cache_sfunc): Constify. * agent.c (set_can_use_agent): Constify. |
||
|
Tom Tromey
|
1d12d88f18 |
Constify add_info
This patch constifies add_info and updates all the info commands. The bulk of this patch was written using a script; and then I did a manual pass to fix up the remaining compilation errors. I could not compile every changed file; in particular nto-procfs.c, gnu-nat.c, and darwin-nat-info.c; but I at least tried to check the correctness by inspection. gdb/ChangeLog 2017-11-07 Tom Tromey <tom@tromey.com> * frame.h (info_locals_command, info_args_command): Constify. * auto-load.h (auto_load_info_scripts): Constify. * inferior.h (registers_info): Constify. * copying.c: Rebuild. * copying.awk: Constify generated commands. * auto-load.c (auto_load_info_scripts) (info_auto_load_gdb_scripts): Constify. * cli/cli-decode.c (struct cmd_list_element): Take a cmd_const_cfunc_ftype. * command.h (add_info): Take a cmd_const_cfunc_ftype. * tui/tui-win.c (tui_all_windows_info): Constify. * python/py-auto-load.c (info_auto_load_python_scripts): Constify. * cli/cli-cmds.c (show_command): Remove non-const overload. * tracepoint.c (info_tvariables_command, info_scope_command): Constify. (info_static_tracepoint_markers_command): Constify. * thread.c (info_threads_command): Constify. (print_thread_info_1): Constify. * target.c (info_target_command): Constify. * symtab.c (info_sources_command, info_functions_command) (info_types_command): Constify. (info_variables_command): Remove non-const overload. * symfile.c (info_ext_lang_command): Constify. * stack.c (info_frame_command, info_locals_command) (info_args_command): Constify. (backtrace_command): Remove non-const overload. * source.c (info_source_command, info_line_command): Constify. * solib.c (info_sharedlibrary_command): Constify. * skip.c (info_skip_command): Constify. * ser-go32.c (info_serial_command): Constify. * reverse.c (info_bookmarks_command): Constify. * printcmd.c (info_symbol_command, info_address_command) (info_display_command): Constify. * osdata.c (info_osdata_command): Constify. * objc-lang.c (info_selectors_command, info_classes_command): Constify. * nto-procfs.c (procfs_pidlist, procfs_meminfo): Constify. * memattr.c (info_mem_command): Constify. * macrocmd.c (info_macro_command, info_macros_command): Constify. * linux-fork.c (info_checkpoints_command): Constify. * infrun.c (info_signals_command): Constify. * inflow.c (info_terminal_command): Constify. * inferior.c (info_inferiors_command): Constify. (print_inferior): Constify. * infcmd.c (info_program_command, info_all_registers_command) (info_registers_command, info_vector_command) (info_float_command): Constify. (registers_info): Constify. * gnu-nat.c (info_send_rights_cmd, info_recv_rights_cmd) (info_port_sets_cmd, info_dead_names_cmd, info_port_rights_cmd): Constify. * f-valprint.c (info_common_command): Constify. * dcache.c (info_dcache_command): Constify. (dcache_info_1): Constify. * darwin-nat-info.c (info_mach_tasks_command) (info_mach_task_command, info_mach_ports_command) (info_mach_port_command, info_mach_threads_command) (info_mach_thread_command, info_mach_regions_command) (info_mach_regions_recurse_command, info_mach_region_command) (info_mach_exceptions_command): Constify. (get_task_from_args): Constify. * cp-support.c (info_vtbl_command): Constify. * breakpoint.c (info_watchpoints_command) (info_tracepoints_command): Constify. (info_breakpoints_command): Remove non-const overload. * avr-tdep.c (avr_io_reg_read_command): Constify. * auxv.c (info_auxv_command): Constify. * ada-tasks.c (info_tasks_command): Constify. (info_task): Constify. * ada-lang.c (info_exceptions_command): Constify. |
||
|
Tom Tromey
|
0b39b52e6e |
Constify add_com
This changes add_com to take a cmd_const_cfunc_ftype, and then fixes up all the command implementations. In most cases this is trivial. In a couple of places I had to again introduce a temporary non-const overload. These overloads will be removed when add_info is constified. gdb/ChangeLog 2017-11-07 Tom Tromey <tom@tromey.com> * solib.h (no_shared_libraries): Constify. * frame.h (return_command): Constify. * cli/cli-cmds.h (quit_command): Constify. * top.h (quit_command, execute_command): Constify. * target.h (flash_erase_command): Constify. * inferior.h (set_inferior_args, attach_command): Constify. * tracepoint.h (start_tracing, stop_tracing): Constify. * breakpoint.h (break_command, tbreak_command) (hbreak_command_wrapper, thbreak_command_wrapper) (rbreak_command_wrapper, watch_command_wrapper) (awatch_command_wrapper, rwatch_command_wrapper) (get_tracepoint_by_number): Constify. * symtab.c (info_variables_command, rbreak_command) (symtab_symbol_info): Constify. (info_variables_command): Add non-const overload. * top.c (dont_repeat_command): Constify. * breakpoint.c (ignore_command, commands_command) (condition_command, tbreak_command, hbreak_command) (thbreak_command, clear_command, break_command) (info_breakpoints_command, watch_command, rwatch_command) (awatch_command, trace_command, ftrace_command, strace_command) (trace_pass_command, break_range_command, dprintf_command) (agent_printf_command, get_tracepoint_by_number) (watch_maybe_just_location, trace_pass_command): Constify. (info_breakpoints_command): Add non-const overload. * tracefile.c (tsave_command): Constify. * infcmd.c (attach_command, disconnect_command, signal_command) (queue_signal_command, stepi_command, nexti_command) (finish_command, next_command, step_command, until_command) (advance_command, jump_command, continue_command, run_command) (start_command, starti_command, interrupt_command) (run_command_1, set_inferior_args, step_1): Constify. * inferior.c (add_inferior_command, remove_inferior_command) (clone_inferior_command): Constify. * linux-fork.c (checkpoint_command, restart_command): Constify. * windows-nat.c (signal_event_command): Constify. * guile/guile.c (guile_repl_command, guile_command): Constify. * printcmd.c (x_command, display_command, printf_command) (output_command, set_command, call_command, print_command) (eval_command): Constify. (non_const_set_command): Remove. (_initialize_printcmd): Update. * source.c (forward_search_command, reverse_search_command): Constify. * jit.c (jit_reader_load_command, jit_reader_unload_command): Constify. * infrun.c (handle_command): Constify. * memattr.c (mem_command): Constify. * stack.c (return_command, up_command, up_silently_command) (down_command, down_silently_command, frame_command) (backtrace_command, func_command, backtrace_command_1): Constify. (backtrace_command): Add non-const overload. * remote-sim.c (simulator_command): Constify. * exec.c (set_section_command): Constify. * tracepoint.c (tdump_command, trace_variable_command) (tstatus_command, tstop_command, tstart_command) (end_actions_pseudocommand, while_stepping_pseudocommand) (collect_pseudocommand, teval_pseudocommand, actions_command) (start_tracing, stop_tracing): Constify. * value.c (init_if_undefined_command): Constify. * tui/tui-stack.c (tui_update_command): Constify. * tui/tui-win.c (tui_refresh_all_command) (tui_set_tab_width_command, tui_set_win_height_command) (tui_set_focus_command, tui_scroll_forward_command) (tui_scroll_backward_command, tui_scroll_left_command) (tui_scroll_right_command, parse_scrolling_args, tui_set_focus) (tui_set_win_height): Constify. * tui/tui-layout.c (tui_layout_command): Constify. * procfs.c (proc_trace_syscalls, proc_trace_sysentry_cmd) (proc_trace_sysexit_cmd, proc_untrace_sysentry_cmd) (proc_untrace_sysexit_cmd): Constify. * remote.c (threadlist_test_cmd, threadinfo_test_cmd) (threadset_test_cmd, threadlist_update_test_cmd) (threadalive_test): Constify. * objc-lang.c (print_object_command): Constify. * command.h (add_com): Constify. * cli/cli-dump.c (restore_command): Constify. * cli/cli-cmds.c (pwd_command, echo_command, quit_command) (help_command, complete_command, shell_command, edit_command) (list_command, disassemble_command, make_command) (apropos_command, alias_command): Constify. * cli/cli-script.c (document_command, define_command) (while_command, if_command, validate_comname): Constify. * cli/cli-decode.c (struct cmd_list_element): Change type of "fun". * target.c (do_monitor_command, flash_erase_command): Constify. * regcache.c (reg_flush_command): Constify. * reverse.c (reverse_step, reverse_next, reverse_stepi) (reverse_nexti, reverse_continue, reverse_finish) (save_bookmark_command, goto_bookmark_command) (exec_reverse_once): Constify. * python/python.c (python_interactive_command, python_command): Constify. * typeprint.c (ptype_command, whatis_command, whatis_exp): Constify. * solib.c (sharedlibrary_command, no_shared_libraries): Constify. * gcore.c (gcore_command): Constify. |
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|
Tom Tromey
|
454dafbdf2 |
Introduce gdb_breakpoint_up
This introduces gdb_breakpoint_up, a unique_ptr typedef that owns a breakpoint. It then changes set_momentary_breakpoint to return a gdb_breakpoint_up and fixes up the fallout. This then allows the removal of make_cleanup_delete_breakpoint. Once breakpoints are fully C++-ified, this typedef can be removed in favor of a plain std::unique_ptr. gdb/ChangeLog 2017-11-04 Tom Tromey <tom@tromey.com> * breakpoint.c (set_momentary_breakpoint): Return breakpoint_up. (until_break_command): Update. (new_until_break_fsm): Change argument types to breakpoint_up. (set_momentary_breakpoint_at_pc): Return breakpoint_up. (do_delete_breakpoint_cleanup, make_cleanup_delete_breakpoint): Remove. * infcmd.c (finish_forward): Update. * breakpoint.h (set_momentary_breakpoint) (set_momentary_breakpoint_at_pc): Return breakpoint_up. (make_cleanup_delete_breakpoint): Remove. (struct breakpoint_deleter): New. (breakpoint_up): New typedef. * infrun.c (insert_step_resume_breakpoint_at_sal_1): Update. (insert_exception_resume_breakpoint): Update. (insert_exception_resume_from_probe): Update. (insert_longjmp_resume_breakpoint): Update. * arm-linux-tdep.c (arm_linux_copy_svc): Update. * elfread.c (elf_gnu_ifunc_resolver_stop): Update. * infcall.c (call_function_by_hand_dummy): Update |
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|
Yao Qi
|
8b86c95921 |
const-fy regcache::m_aspace
regcache::m_aspace is a const, never changed during the lifetime of regcache object. The address_space object is a const object too. gdb: 2017-11-02 Yao Qi <yao.qi@linaro.org> * breakpoint.c (insert_single_step_breakpoints): Update. * frame.c (struct frame_info) <aspace>: Add const. (frame_save_as_regcache): Add const. (get_frame_address_space): Return const address_space *. * frame.h (get_frame_address_space): Update declaration. * infrun.c (struct step_over_info) <aspace>: Add const. (set_step_over_info): Make aspace const. (displaced_step_prepare_throw): Change variable const. (resume): Likewise. (proceed): Likewise. (adjust_pc_after_break): Likewise. (save_waitstatus): Likewise. (handle_signal_stop): Likewise. (keep_going_pass_signal): Likewise. * jit.c (jit_frame_sniffer): Add const. * mips-tdep.c (mips_single_step_through_delay): Likewise. * ppc-linux-tdep.c (ppu2spu_sniffer): Likewise. * record-full.c (record_full_wait_1): Likewise. * regcache.c (regcache::regcache): Change parameter to const. * regcache.h (regcache::regcache): Likewise. (regcache::aspace): Return const address_space *. (regcache) <m_aspace>: Add const. |
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Yao Qi
|
a01bda5221 |
s/get_regcache_aspace (regcache)/regcache->aspace ()/g
and remove get_regcache_aspace. gdb: 2017-11-02 Yao Qi <yao.qi@linaro.org> * darwin-nat.c (cancel_breakpoint): Use regcache->aspace (). * frame.c (create_sentinel_frame): Likewise. * infrun.c (displaced_step_prepare_throw): Likewise. (resume): Likewise. (thread_still_needs_step_over_bp): Likewise. (proceed): Likewise. (do_target_wait): Likewise. (adjust_pc_after_break): Likewise. (handle_syscall_event): Likewise. (save_waitstatus): Likewise. (handle_inferior_event_1): Likewise. (handle_signal_stop): Likewise. (keep_going_pass_signal): Likewise. * linux-nat.c (status_callback): Likewise. (save_stop_reason): Likewise. (resume_stopped_resumed_lwps): Likewise. * record-full.c (record_full_exec_insn): Likewise. (record_full_wait_1): Likewise. * regcache.c (get_regcache_aspace): Remove. * regcache.h (get_regcache_aspace): Remove. |
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|
Yao Qi
|
ac7936dfd0 |
s/get_regcache_arch (regcache)/regcache->arch ()/g
This patches removes get_regcache_arch, and use regache->arch () instead. The motivation of this change is that I am going to move some basic stuff into a base class of regcache. I don't need to update "client" code regcache->arch (). On the other hand, this patch shortens the code a little bit. gdb: 2017-10-25 Yao Qi <yao.qi@linaro.org> * aarch32-linux-nat.c (aarch32_gp_regcache_supply): Use regcache->arch () instead get_regcache_arch. * aarch64-fbsd-nat.c (aarch64_fbsd_fetch_inferior_registers): Likewise. (aarch64_fbsd_store_inferior_registers): Likewise. * aarch64-linux-nat.c (fetch_gregs_from_thread): Likewise. (store_gregs_to_thread): Likewise. (fetch_fpregs_from_thread): Likewise. (store_fpregs_to_thread): Likewise. * aarch64-tdep.c (aarch64_extract_return_value): Likewise. (aarch64_store_return_value): Likewise. (aarch64_software_single_step): Likewise. * aix-thread.c (aix_thread_wait): Likewise. (supply_reg32): Likewise. (supply_sprs64): Likewise. (supply_sprs32): Likewise. (fill_gprs64): Likewise. (fill_gprs32): Likewise. (fill_sprs64): Likewise. (fill_sprs32): Likewise. (store_regs_user_thread): Likewise. (store_regs_kernel_thread): Likewise. * alpha-bsd-nat.c (alphabsd_fetch_inferior_registers): Likewise. (alphabsd_store_inferior_registers): Likewise. * alpha-tdep.c (alpha_extract_return_value): Likewise. (alpha_store_return_value): Likewise. (alpha_deal_with_atomic_sequence): Likewise. (alpha_next_pc): Likewise. (alpha_software_single_step): Likewise. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers): Likewise. (amd64bsd_store_inferior_registers): Likewise. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Likewise. (amd64_linux_store_inferior_registers): Likewise. * amd64-nat.c (amd64_supply_native_gregset): Likewise. (amd64_collect_native_gregset): Likewise. * amd64-obsd-tdep.c (amd64obsd_supply_uthread): Likewise. (amd64obsd_collect_uthread): Likewise. * amd64-tdep.c (amd64_supply_fpregset): Likewise. (amd64_collect_fpregset): Likewise. (amd64_supply_fxsave): Likewise. (amd64_supply_xsave): Likewise. (amd64_collect_fxsave): Likewise. (amd64_collect_xsave): Likewise. * arc-tdep.c (arc_write_pc): Likewise. * arch-utils.c (default_skip_permanent_breakpoint): Likewise. * arm-fbsd-nat.c (arm_fbsd_fetch_inferior_registers): Likewise. (arm_fbsd_store_inferior_registers): Likewise. * arm-linux-nat.c (fetch_vfp_regs): Likewise. (store_vfp_regs): Likewise. (arm_linux_fetch_inferior_registers): Likewise. (arm_linux_store_inferior_registers): Likewise. * arm-linux-tdep.c (arm_linux_supply_gregset): Likewise. (arm_linux_sigreturn_next_pc): Likewise. (arm_linux_get_next_pcs_syscall_next_pc): Likewise. * arm-nbsd-nat.c (arm_supply_gregset): Likewise. (fetch_register): Likewise. (store_register): Likewise. * arm-tdep.c (arm_is_thumb): Likewise. (displaced_in_arm_mode): Likewise. (bx_write_pc): Likewise. (arm_get_next_pcs_addr_bits_remove): Likewise. (arm_software_single_step): Likewise. (arm_extract_return_value): Likewise. (arm_store_return_value): Likewise. (arm_write_pc): Likewise. * bfin-tdep.c (bfin_extract_return_value): Likewise. * bsd-uthread.c (bsd_uthread_fetch_registers): Likewise. (bsd_uthread_store_registers): Likewise. * core-regset.c (fetch_core_registers): Likewise. * corelow.c (get_core_registers): Likewise. * cris-tdep.c (cris_store_return_value): Likewise. (cris_extract_return_value): Likewise. (find_step_target): Likewise. (find_step_target): Likewise. (cris_software_single_step): Likewise. * ctf.c (ctf_fetch_registers): Likewise. * darwin-nat.c (cancel_breakpoint): Likewise. * fbsd-tdep.c (fbsd_collect_thread_registers): Likewise. * frv-tdep.c (frv_extract_return_value): Likewise. * ft32-tdep.c (ft32_store_return_value): Likewise. (ft32_extract_return_value): Likewise. * go32-nat.c (fetch_register): Likewise. (go32_fetch_registers): Likewise. (go32_store_registers): Likewise. (store_register): Likewise. * h8300-tdep.c (h8300_extract_return_value): Likewise. (h8300_store_return_value): Likewise. * hppa-linux-nat.c (fetch_register): Likewise. (store_register): Likewise. (hppa_linux_fetch_inferior_registers): Likewise. (hppa_linux_store_inferior_registers): Likewise. * i386-darwin-nat.c (i386_darwin_fetch_inferior_registers): Likewise. (i386_darwin_store_inferior_registers): Likewise. * i386-gnu-nat.c (gnu_fetch_registers): Likewise. (gnu_store_registers): Likewise. * i386-linux-nat.c (fetch_register): Likewise. (store_register): Likewise. (supply_gregset): Likewise. (fill_gregset): Likewise. (i386_linux_fetch_inferior_registers): Likewise. (i386_linux_store_inferior_registers): Likewise. (i386_linux_resume): Likewise. * i386-linux-tdep.c (i386_linux_get_syscall_number_from_regcache): Likewise. * i386-nto-tdep.c (i386nto_supply_gregset): Likewise. * i386-obsd-nat.c (i386obsd_supply_pcb): Likewise. * i386-obsd-tdep.c (i386obsd_supply_uthread): Likewise. (i386obsd_collect_uthread): Likewise. * i386-tdep.c (i386_mmx_regnum_to_fp_regnum): Likewise. (i386_supply_gregset): Likewise. (i386_collect_gregset): Likewise. (i386_supply_fpregset): Likewise. (i386_collect_fpregset): Likewise. (i386_mpx_bd_base): Likewise. * i386-v4-nat.c (supply_fpregset): Likewise. (fill_fpregset): Likewise. * i387-tdep.c (i387_supply_fsave): Likewise. (i387_collect_fsave): Likewise. (i387_supply_fxsave): Likewise. (i387_collect_fxsave): Likewise. (i387_supply_xsave): Likewise. (i387_collect_xsave): Likewise. * ia64-linux-nat.c (ia64_linux_fetch_registers): Likewise. (ia64_linux_store_registers): Likewise. * ia64-tdep.c (ia64_access_rse_reg): Likewise. (ia64_extract_return_value): Likewise. (ia64_store_return_value): Likewise. (find_func_descr): Likewise. * inf-child.c (inf_child_fetch_inferior_registers): Likewise. * inf-ptrace.c (inf_ptrace_fetch_registers): Likewise. (inf_ptrace_store_registers): Likewise. * infrun.c (use_displaced_stepping): Likewise. (displaced_step_prepare_throw): Likewise. (resume): Likewise. (proceed): Likewise. (do_target_wait): Likewise. (adjust_pc_after_break): Likewise. (handle_inferior_event_1): Likewise. (handle_signal_stop): Likewise. (save_infcall_suspend_state): Likewise. (restore_infcall_suspend_state): Likewise. * iq2000-tdep.c (iq2000_extract_return_value): Likewise. * jit.c (jit_frame_prev_register): Likewise. * linux-nat.c (save_stop_reason): Likewise. (linux_nat_wait_1): Likewise. (resume_stopped_resumed_lwps): Likewise. * linux-record.c (record_linux_sockaddr): Likewise. (record_linux_msghdr): Likewise. (record_linux_system_call): Likewise. * linux-tdep.c (linux_collect_thread_registers): Likewise. * lm32-tdep.c (lm32_extract_return_value): Likewise. (lm32_store_return_value): Likewise. * m32c-tdep.c (m32c_read_flg): Likewise. (m32c_pseudo_register_read): Likewise. (m32c_pseudo_register_write): Likewise. * m32r-linux-tdep.c (m32r_linux_supply_gregset): Likewise. (m32r_linux_collect_gregset): Likewise. * m32r-tdep.c (m32r_store_return_value): Likewise. (m32r_extract_return_value): Likewise. * m68k-bsd-nat.c (m68kbsd_supply_fpregset): Likewise. (m68kbsd_collect_fpregset): Likewise. * m68k-bsd-tdep.c (m68kbsd_supply_fpregset): Likewise. * m68k-linux-nat.c (fetch_register): Likewise. (old_fetch_inferior_registers): Likewise. (old_store_inferior_registers): Likewise. (store_regs): Likewise. * m68k-tdep.c (m68k_svr4_extract_return_value): Likewise. (m68k_svr4_store_return_value): Likewise. * m88k-tdep.c (m88k_store_arguments): Likewise. * mi/mi-main.c (mi_cmd_data_list_changed_registers): Likewise. (mi_cmd_data_write_register_values): Likewise. * mips-fbsd-nat.c (mips_fbsd_fetch_inferior_registers): Likewise. (mips_fbsd_store_inferior_registers): Likewise. * mips-fbsd-tdep.c (mips_fbsd_supply_fpregs): Likewise. (mips_fbsd_supply_gregs): Likewise. (mips_fbsd_collect_fpregs): Likewise. (mips_fbsd_collect_gregs): Likewise. (mips_fbsd_supply_fpregset): Likewise. (mips_fbsd_collect_fpregset): Likewise. (mips_fbsd_supply_gregset): Likewise. (mips_fbsd_collect_gregset): Likewise. * mips-linux-nat.c (supply_gregset): Likewise. (fill_gregset): Likewise. (supply_fpregset): Likewise. (fill_fpregset): Likewise. * mips-linux-tdep.c (mips_supply_gregset): Likewise. (mips_fill_gregset): Likewise. (mips_supply_fpregset): Likewise. (mips_fill_fpregset): Likewise. (mips64_supply_gregset): Likewise. (micromips_linux_sigframe_validate): Likewise. * mips-nbsd-nat.c (mipsnbsd_fetch_inferior_registers): Likewise. (mipsnbsd_fetch_inferior_registers): Likewise. (mipsnbsd_store_inferior_registers): Likewise. * mips-nbsd-tdep.c (mipsnbsd_supply_fpregset): Likewise. (mipsnbsd_supply_gregset): Likewise. (mipsnbsd_iterate_over_regset_sections): Likewise. (mipsnbsd_supply_reg): Likewise. (mipsnbsd_supply_fpreg): Likewise. * mips-tdep.c (mips_in_frame_stub): Likewise. (mips_dummy_id): Likewise. (is_octeon_bbit_op): Likewise. (micromips_bc1_pc): Likewise. (extended_mips16_next_pc): Likewise. (mips16_next_pc): Likewise. (deal_with_atomic_sequence): Likewise. * moxie-tdep.c (moxie_process_readu): Likewise. * nios2-tdep.c (nios2_get_next_pc): Likewise. * nto-procfs.c (procfs_store_registers): Likewise. * ppc-fbsd-nat.c (ppcfbsd_fetch_inferior_registers): Likewise. (ppcfbsd_store_inferior_registers): Likewise. * ppc-linux-nat.c (fetch_vsx_register): Likewise. (fetch_altivec_register): Likewise. (get_spe_registers): Likewise. (fetch_spe_register): Likewise. (fetch_altivec_registers): Likewise. (fetch_all_gp_regs): Likewise. (fetch_all_fp_regs): Likewise. (store_vsx_register): Likewise. (store_altivec_register): Likewise. (set_spe_registers): Likewise. (store_spe_register): Likewise. (store_altivec_registers): Likewise. (store_all_gp_regs): Likewise. (store_all_fp_regs): Likewise. * ppc-linux-tdep.c (ppc_linux_supply_gregset): Likewise. (ppc_linux_collect_gregset): Likewise. (ppc_canonicalize_syscall): Likewise. (ppc_linux_record_signal): Likewise. (ppu2spu_prev_register): Likewise. * ppc-nbsd-nat.c (ppcnbsd_supply_pcb): Likewise. * ppc-obsd-nat.c (ppcobsd_fetch_registers): Likewise. (ppcobsd_store_registers): Likewise. * ppc-ravenscar-thread.c (ppc_ravenscar_generic_fetch_registers): Likewise. (ppc_ravenscar_generic_store_registers): Likewise. * procfs.c (procfs_fetch_registers): Likewise. (procfs_store_registers): Likewise. * ravenscar-thread.c (ravenscar_fetch_registers): Likewise. (ravenscar_store_registers): Likewise. (ravenscar_prepare_to_store): Likewise. * record-btrace.c (record_btrace_fetch_registers): Likewise. * record-full.c (record_full_wait_1): Likewise. (record_full_registers_change): Likewise. (record_full_store_registers): Likewise. (record_full_core_fetch_registers): Likewise. (record_full_save): Likewise. (record_full_goto_insn): Likewise. * regcache.c (regcache_register_size): Likewise. (get_regcache_arch): Remove. (regcache_read_pc): Likewise. * regcache.h (get_regcache_arch): Remove. * remote-sim.c (gdbsim_fetch_register): Likewise. (gdbsim_store_register): Likewise. * remote.c (fetch_register_using_p): Likewise. (send_g_packet): Likewise. (remote_prepare_to_store): Likewise. (store_registers_using_G): Likewise. * reverse.c (save_bookmark_command): Likewise. (goto_bookmark_command): Likewise. * rs6000-aix-tdep.c (branch_dest): Likewise. * rs6000-nat.c (rs6000_ptrace64): Likewise. (fetch_register): Likewise. * rs6000-tdep.c (ppc_supply_reg): Likewise. (ppc_collect_reg): Likewise. (ppc_collect_gregset): Likewise. (ppc_collect_fpregset): Likewise. (ppc_collect_vsxregset): Likewise. (ppc_collect_vrregset): Likewise. (ppc_displaced_step_hw_singlestep): Likewise. (rs6000_pseudo_register_read): Likewise. (rs6000_pseudo_register_write): Likewise. * s390-linux-nat.c (supply_gregset): Likewise. (fill_gregset): Likewise. (s390_linux_fetch_inferior_registers): Likewise. * s390-linux-tdep.c (s390_write_pc): Likewise. (s390_software_single_step): Likewise. (s390_all_but_pc_registers_record): Likewise. (s390_linux_syscall_record): Likewise. * sentinel-frame.c (sentinel_frame_prev_arch): Likewise. * sh-nbsd-nat.c (shnbsd_fetch_inferior_registers): Likewise. (shnbsd_store_inferior_registers): Likewise. * sh-tdep.c (sh_extract_return_value_nofpu): Likewise. (sh_extract_return_value_fpu): Likewise. (sh_store_return_value_nofpu): Likewise. (sh_corefile_supply_regset): Likewise. (sh_corefile_collect_regset): Likewise. * sh64-tdep.c (sh64_extract_return_value): Likewise. (sh64_store_return_value): Likewise. * sparc-linux-tdep.c (sparc32_linux_collect_core_fpregset): Likewise. * sparc-nat.c (sparc_fetch_inferior_registers): Likewise. (sparc_store_inferior_registers): Likewise. * sparc-ravenscar-thread.c (register_in_thread_descriptor_p): Likewise. (sparc_ravenscar_prepare_to_store): Likewise. * sparc-tdep.c (sparc32_store_arguments): Likewise. (sparc_analyze_control_transfer): Likewise. (sparc_step_trap): Likewise. (sparc_software_single_step): Likewise. (sparc32_gdbarch_init): Likewise. (sparc_supply_rwindow): Likewise. (sparc_collect_rwindow): Likewise. * sparc64-linux-tdep.c (sparc64_linux_collect_core_fpregset): Likewise. * sparc64-nbsd-nat.c (sparc64nbsd_supply_gregset): Likewise. (sparc64nbsd_collect_gregset): Likewise. (sparc64nbsd_supply_fpregset): Likewise. (sparc64nbsd_collect_fpregset): Likewise. * sparc64-tdep.c (sparc64_store_arguments): Likewise. (sparc64_supply_gregset): Likewise. (sparc64_collect_gregset): Likewise. (sparc64_supply_fpregset): Likewise. (sparc64_collect_fpregset): Likewise. * spu-linux-nat.c (spu_fetch_inferior_registers): Likewise. * spu-tdep.c (spu_unwind_sp): Likewise. (spu2ppu_prev_register): Likewise. (spu_memory_remove_breakpoint): Likewise. * stack.c (return_command): Likewise. * tic6x-tdep.c (tic6x_extract_signed_field): Likewise. * tracefile-tfile.c (tfile_fetch_registers): Likewise. * tracefile.c (trace_save_ctf): Likewise. * windows-nat.c (do_windows_fetch_inferior_registers): Likewise. (do_windows_store_inferior_registers): Likewise. (windows_resume): Likewise. * xtensa-linux-nat.c (fill_gregset): Likewise. (supply_gregset_reg): Likewise. * xtensa-tdep.c (xtensa_register_write_masked): Likewise. (xtensa_register_read_masked): Likewise. (xtensa_supply_gregset): Likewise. (xtensa_extract_return_value): Likewise. (xtensa_store_return_value): Likewise. |
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|
Simon Marchi
|
cfba98720f |
Create a displaced_step_closure class hierarchy
displaced_step_closure is a type defined in multiple -tdep.c files. Trying to xfree it from the common code (infrun.c) is a problem when we try to poison xfree for non-POD types. Because there can be multiple of these types in the same build, this patch makes a hierarchy of classes with a virtual destructor. When the common code deletes the object through a displaced_step_closure pointer, it will invoke the right destructor. The amd64 used a last-member array with a variable size. That doesn't work with new, so I changed it for an std::vector. Other architectures which used a simple byte buffer as a closure now use a shared buf_displaced_step_closure, a closure type that only contains a gdb::byte_vector. Reg-tested on the buildbot. gdb/ChangeLog: * infrun.h: Include common/byte-vector.h. (struct displaced_step_closure): New struct. (struct buf_displaced_step_closure): New struct. * infrun.c (displaced_step_closure::~displaced_step_closure): Provide default implementation. (displaced_step_clear): Deallocate step closure with delete. * aarch64-tdep.c (displaced_step_closure): Rename to ... (aarch64_displaced_step_closure): ... this, extend displaced_step_closure. (aarch64_displaced_step_data) <dsc>: Change type to aarch64_displaced_step_closure. (aarch64_displaced_step_copy_insn): Adjust to type change, use unique_ptr. (aarch64_displaced_step_fixup): Add cast for displaced step closure. * amd64-tdep.c (displaced_step_closure): Rename to ... (amd64_displaced_step_closure): ... this, extend displaced_step_closure. <insn_buf>: Change type to std::vector<gdb_byte>. <max_len>: Remove. (fixup_riprel): Change type of DSC parameter, adjust to type change of insn_buf. (fixup_displaced_copy): Change type of DSC parameter. (amd64_displaced_step_copy_insn): Instantiate amd64_displaced_step_closure. (amd64_displaced_step_fixup): Add cast for closure type, adjust to type change of insn_buf. * arm-linux-tdep.c (arm_linux_cleanup_svc): Change type of parameter DSC. (arm_linux_copy_svc): Likewise. (cleanup_kernel_helper_return): Likewise. (arm_catch_kernel_helper_return): Likewise. (arm_linux_displaced_step_copy_insn): Instantiate arm_displaced_step_closure. * arm-tdep.c (arm_pc_is_thumb): Add cast for closure. (displaced_read_reg): Change type of parameter DSC. (branch_write_pc): Likewise. (load_write_pc): Likewise. (alu_write_pc): Likewise. (displaced_write_reg): Likewise. (arm_copy_unmodified): Likewise. (thumb_copy_unmodified_32bit): Likewise. (thumb_copy_unmodified_16bit): Likewise. (cleanup_preload): Likewise. (install_preload): Likewise. (arm_copy_preload): Likewise. (thumb2_copy_preload): Likewise. (install_preload_reg): Likewise. (arm_copy_preload_reg): Likewise. (cleanup_copro_load_store): Likewise. (install_copro_load_store): Likewise. (arm_copy_copro_load_store) Likewise. (thumb2_copy_copro_load_store): Likewise. (cleanup_branch): Likewise. (install_b_bl_blx): Likewise. (arm_copy_b_bl_blx): Likewise. (thumb2_copy_b_bl_blx): Likewise. (thumb_copy_b): Likewise. (install_bx_blx_reg): Likewise. (arm_copy_bx_blx_reg): Likewise. (thumb_copy_bx_blx_reg): Likewise. (cleanup_alu_imm): Likewise. (arm_copy_alu_imm): Likewise. (thumb2_copy_alu_imm): Likewise. (cleanup_alu_reg): Likewise. (install_alu_reg): Likewise. (arm_copy_alu_reg): Likewise. (thumb_copy_alu_reg): Likewise. (cleanup_alu_shifted_reg): Likewise. (install_alu_shifted_reg): Likewise. (arm_copy_alu_shifted_reg): Likewise. (cleanup_load): Likewise. (cleanup_store): Likewise. (arm_copy_extra_ld_st): Likewise. (install_load_store): Likewise. (thumb2_copy_load_literal): Likewise. (thumb2_copy_load_reg_imm): Likewise. (arm_copy_ldr_str_ldrb_strb): Likewise. (cleanup_block_load_all): Likewise. (cleanup_block_store_pc): Likewise. (cleanup_block_load_pc): Likewise. (arm_copy_block_xfer): Likewise. (thumb2_copy_block_xfer): Likewise. (cleanup_svc): Likewise. (install_svc): Likewise. (arm_copy_svc): Likewise. (thumb_copy_svc): Likewise. (arm_copy_undef): Likewise. (thumb_32bit_copy_undef): Likewise. (arm_copy_unpred): Likewise. (arm_decode_misc_memhint_neon): Likewise. (arm_decode_unconditional): Likewise. (arm_decode_miscellaneous): Likewise. (arm_decode_dp_misc): Likewise. (arm_decode_ld_st_word_ubyte): Likewise. (arm_decode_media): Likewise. (arm_decode_b_bl_ldmstm): Likewise. (arm_decode_ext_reg_ld_st): Likewise. (thumb2_decode_dp_shift_reg): Likewise. (thumb2_decode_ext_reg_ld_st): Likewise. (arm_decode_svc_copro): Likewise. (thumb2_decode_svc_copro): Likewise. (install_pc_relative): Likewise. (thumb_copy_pc_relative_16bit): Likewise. (thumb_decode_pc_relative_16bit): Likewise. (thumb_copy_pc_relative_32bit): Likewise. (thumb_copy_16bit_ldr_literal): Likewise. (thumb_copy_cbnz_cbz): Likewise. (thumb2_copy_table_branch): Likewise. (cleanup_pop_pc_16bit_all): Likewise. (thumb_copy_pop_pc_16bit): Likewise. (thumb_process_displaced_16bit_insn): Likewise. (decode_thumb_32bit_ld_mem_hints): Likewise. (thumb_process_displaced_32bit_insn): Likewise. (thumb_process_displaced_insn): Likewise. (arm_process_displaced_insn): Likewise. (arm_displaced_init_closure): Likewise. (arm_displaced_step_fixup): Add cast for closure. * arm-tdep.h: Include infrun.h. (displaced_step_closure): Rename to ... (arm_displaced_step_closure): ... this, extend displaced_step_closure. <u::svc::copy_svc_os>: Change type of parameter DSC. <cleanup>: Likewise. (arm_process_displaced_insn): Likewise. (arm_displaced_init_closure): Likewise. (displaced_read_reg): Likewise. (displaced_write_reg): Likewise. * i386-linux-tdep.c (i386_linux_displaced_step_copy_insn): Adjust. * i386-tdep.h: Include infrun.h. (i386_displaced_step_closure): New typedef. * i386-tdep.c (i386_displaced_step_copy_insn): Use i386_displaced_step_closure. (i386_displaced_step_fixup): Adjust. * rs6000-tdep.c (ppc_displaced_step_closure): New typedef. (ppc_displaced_step_copy_insn): Use ppc_displaced_step_closure and unique_ptr. (ppc_displaced_step_fixup): Adjust. * s390-linux-tdep.c (s390_displaced_step_closure): New typedef. (s390_displaced_step_copy_insn): Use s390_displaced_step_closure and unique_ptr. (s390_displaced_step_fixup): Adjust. |
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Pedro Alves
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bf46927112 |
Eliminate catch_errors
If you want to use catch_errors with a function with parameters, then currently you have to manually write a "capture" struct wrapping the arguments and marshall/unmarshall that. https://sourceware.org/ml/gdb-patches/2017-09/msg00834.html proposed adjusting catch_errors to use gdb::function_view, which would allow passing lambdas with automatic captures. However, it seems like using TRY/CATCH directly instead ends up producing clearer and easier to debug code. This is what this commit does. Note that removing catch_errors exposes further cleanup opportunities around no longer having to follow catch_errors callback type, and also removes a few cleanups. I didn't do anything to save/restore current_uiout because I think that should be the responsibility of the code that changes current_uiout in the first place. (Another approach could be to make catch_errors a variadic template like: template<typename Function, typename... Args> int catch_errors (const char *errstring, return_mask mask, Function &&func, Args... args); and then with: extern void function_with_args (int, int); extern void function_with_no_args (); calls to the above functions would be wrapped like this: catch_errors ("some error happened", RETURN_MASK_ERROR, function_with_args, arg1, arg2); catch_errors ("some error happened", RETURN_MASK_ERROR, function_with_no_args); but I'm thinking that that doesn't improve much if at all either.) gdb/ChangeLog 2017-10-10 Pedro Alves <palves@redhat.com> Tom Tromey <tom@tromey.com> * breakpoint.c (breakpoint_cond_eval): Change return type to bool and reverse logic. (WP_DELETED, WP_VALUE_CHANGED, WP_VALUE_NOT_CHANGED, WP_IGNORE): No longer macros. Instead ... (enum wp_check_result): They're now values of this new enumeration. (watchpoint_check): Change return type to wp_check_result and parameter type to bpstat. (bpstat_check_watchpoint): Use TRY/CATCH instead of catch_errors. (bpstat_check_breakpoint_conditions): Use TRY/CATCH instead of catch_errors. Reverse logic of watchpoint_check call. (breakpoint_re_set_one): Now returns void and takes a breakpoint pointer as parameter. (breakpoint_re_set): Use TRY/CATCH instead of catch_errors. * common/common-exceptions.c (throw_exception_sjlj): Update comments to avoid mentioning catch_errors. * exceptions.c (catch_errors): Delete. * exceptions.h: Update comments to avoid mentioning catch_errors. (catch_errors_ftype, catch_errors): Delete. * infrun.c (normal_stop): Use TRY/CATCH instead of catch_errors. (hook_stop_stub): Delete. (restore_selected_frame): Change return type to void, and parameter type to const frame_id &. (restore_infcall_control_state): Use TRY/CATCH instead of catch_errors. * main.c (captured_command_loop): Return void and remove parameter. Remove references to catch_errors. (captured_main): Use TRY/CATCH instead of catch_errors. * objc-lang.c (objc_submethod_helper_data) (find_objc_msgcall_submethod_helper): Delete. (find_objc_msgcall_submethod): Use TRY/CATCH instead of catch_errors. * record-full.c (record_full_message): Return void. (record_full_message_args, record_full_message_wrapper): Delete. (record_full_message_wrapper_safe): Return bool and use TRY/CATCH instead of catch_errors. * solib-aix.c (solib_aix_open_symbol_file_object): Change parameter type to int. * solib-darwin.c (open_symbol_file_object): Ditto. * solib-dsbt.c (open_symbol_file_object): Ditto. * solib-frv.c (open_symbol_file_object): Ditto. * solib-svr4.c (open_symbol_file_object): Ditto. * solib-target.c (solib_target_open_symbol_file_object): Ditto. * solib.c (update_solib_list): Use TRY/CATCH instead of catch_errors. * solist.h (struct target_so_ops) <open_symbol_file_object>: Change type. * symmisc.c (struct print_symbol_args): Remove. (dump_symtab_1): Use TRY/CATCH instead of catch_errors. (print_symbol): Change type. * windows-nat.c (handle_load_dll, handle_unload_dll): Return void and remove parameters. (catch_errors): New. (get_windows_debug_event): Adjust. gdb/testsuite/ChangeLog: 2017-10-10 Pedro Alves <palves@redhat.com> * lib/selftest-support.exp (selftest_setup): Update for captured_command_loop's prototype change. |
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Pedro Alves
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cbd2b4e316 |
Multi-arch exec, more register reading avoidance
As mentioned in commit
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Tom Tromey
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070365117b |
Change record_full_gdb_operation_disable_set not to return a cleanup
This changes record_full_gdb_operation_disable_set to return a scoped_restore rather than a cleanup, and fixes all the users. ChangeLog 2017-10-03 Tom Tromey <tom@tromey.com> * record-full.h (record_full_gdb_operation_disable_set): Return scoped_restore_tmpl<int>. * infrun.c (adjust_pc_after_break): Update. (handle_signal_stop): Update. * record-full.c (record_full_gdb_operation_disable_set): Return scoped_restore_tmpl<int>. (record_full_wait_1, record_full_insert_breakpoint) (record_full_remove_breakpoint, record_full_save) (record_full_goto_insn): Update. |
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Tom Tromey
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a9bc57b978 |
Remove make_cleanup_defer_target_commit_resume
This removes make_cleanup_defer_target_commit_resume in favor of using scoped_restore. gdb/ChangeLog 2017-09-29 Tom Tromey <tom@tromey.com> * target.h (make_scoped_defer_target_commit_resume): Update. * target.c (make_scoped_defer_target_commit_resume): Rename from make_cleanup_defer_target_commit_resume. Return a scoped_restore. * infrun.c (proceed): Use make_scoped_defer_target_commit_resume. |
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Tom Tromey
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c0e383c638 |
Remove regcache_xfree
This removes regcache_xfree in favor of plain "delete". gdb/ChangeLog 2017-09-25 Tom Tromey <tom@tromey.com> * spu-tdep.c (spu2ppu_dealloc_cache): Use delete. * regcache.h (regcache_xfree): Don't declare. * regcache.c (regcache_xfree): Remove. (do_regcache_xfree): Use delete. * ppc-linux-tdep.c (ppu2spu_dealloc_cache): Use delete. * linux-fork.c (free_fork): Use delete. (fork_save_infrun_state): Likewise. * jit.c (jit_dealloc_cache): Use delete. * infrun.c (discard_infcall_suspend_state): Use delete. |
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Tom Tromey
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223ffa714c |
Remove make_cleanup_restore_target_terminal
This removes make_cleanup_restore_target_terminal and generally C++-ifies target terminal handling. It changes all target_terminal_* functions to be static members of a new target_terminal class and changes the cleanup to be a scoped_* class. make_cleanup_override_quit_handler is also removed in favor of simply using scoped_restore. Note that there are some files in this patch that I could not compile. Considering that some of the rewrites were automated, and that none of these files involed cleanups, I feel that this is relatively safe. Regression tested by the buildbot. gdb/ChangeLog 2017-09-20 Tom Tromey <tom@tromey.com> * windows-nat.c (get_windows_debug_event, windows_wait) (do_initial_windows_stuff, windows_attach): Update. * utils.c (vwarning, internal_vproblem): Update. (ui_unregister_input_event_handler_cleanup) (prepare_to_handle_input): Remove. (class scoped_input_handler): New. (defaulted_query, prompt_for_continue): Update. * tui/tui-hooks.c (tui_refresh_frame_and_register_information): Update. * top.c (undo_terminal_modifications_before_exit): Update. * target/target.h (target_terminal_init, target_terminal_inferior) (target_terminal_ours): Don't declare. (class target_terminal): New. * target.h (target_terminal_is_inferior, target_terminal_is_ours) (target_terminal_ours_for_output) (make_cleanup_restore_target_terminal): Don't declare. (target_terminal_info): Remove. * target.c (enum terminal_state, terminal_state): Remove. (target_terminal::terminal_state): Define. (target_terminal::init): Rename from target_terminal_init. (target_terminal::inferior): Rename from target_terminal_inferior. (target_terminal::ours): Rename from target_terminal_ours. (target_terminal::ours_for_output): Rename from target_terminal_ours_for_output. (target_terminal::info): New method. (cleanup_restore_target_terminal) (make_cleanup_restore_target_terminal): Remove. * solib.c (handle_solib_event): Update. * remote.c (remote_serial_quit_handler): Update. (remote_terminal_inferior, remote_wait_as): Update. * record-full.c (record_full_wait_1): Update. * nto-procfs.c (procfs_create_inferior): Update. * nat/fork-inferior.c (startup_inferior): Update. * mi/mi-interp.c (mi_new_thread, mi_thread_exit) (mi_record_changed, mi_inferior_added, mi_inferior_appeared) (mi_inferior_exit, mi_inferior_removed, mi_traceframe_changed) (mi_tsv_created, mi_tsv_deleted, mi_tsv_modified) (mi_breakpoint_created, mi_breakpoint_deleted) (mi_breakpoint_modified, mi_on_resume, mi_solib_loaded) (mi_solib_unloaded, mi_command_param_changed, mi_memory_changed) (mi_user_selected_context_changed, report_initial_inferior): Update. * linux-nat.c (linux_nat_attach, linux_nat_terminal_ours) (linux_nat_terminal_inferior): Update. * infrun.c (follow_fork_inferior) (handle_vfork_child_exec_or_exit, do_target_resume) (check_curr_ui_sync_execution_done, handle_inferior_event_1) (handle_signal_stop, maybe_remove_breakpoints, normal_stop): Update. * inflow.c (child_terminal_init, info_terminal_command): Update. * infcmd.c (post_create_inferior, continue_1, prepare_one_step) (attach_command): Update. * infcall.c (call_thread_fsm_should_stop): Update. * gnu-nat.c (gnu_attach): Update. * extension.c (struct active_ext_lang_state) (restore_active_ext_lang): Update. * exceptions.c (print_flush): Update. * event-top.c (async_enable_stdin, default_quit_handler): Update. (struct quit_handler_cleanup_data, restore_quit_handler) (restore_quit_handler_dtor, make_cleanup_override_quit_handler): Remove. * cp-support.c (gdb_demangle): Update. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, handle_jit_event) (disable_breakpoints_in_unloaded_shlib): Update. * annotate.c (annotate_breakpoints_invalid) (annotate_frames_invalid): Update. gdb/gdbserver/ChangeLog 2017-09-20 Tom Tromey <tom@tromey.com> * target.c (target_terminal::terminal_state): Define. (target_terminal::init): Rename from target_terminal_init. (target_terminal::inferior): Rename from target_terminal_inferior. (target_terminal::ours): Rename from target_terminal_ours. (target_terminal::ours_for_output, target_terminal::info): New. |
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John Baldwin
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481695ed5f |
Remove unnecessary function prototypes.
These prototypes were required when compiling GDB as C but are not required for C++. gdb/ChangeLog: * aarch64-linux-nat.c: Remove _initialize_aarch64_linux_nat prototype. * aarch64-linux-tdep.c: Remove _initialize_aarch64_linux_tdep prototype. * aarch64-newlib-tdep.c: Remove _initialize_aarch64_newlib_tdep prototype. * aarch64-tdep.c: Remove _initialize_aarch64_tdep prototype. * ada-exp.y: Remove _initialize_ada_exp prototype. * ada-lang.c: Remove _initialize_ada_language prototype. * ada-tasks.c: Remove _initialize_tasks prototype. * addrmap.c: Remove _initialize_addrmap prototype. * agent.c: Remove _initialize_agent prototype. * aix-thread.c: Remove _initialize_aix_thread prototype. * alpha-bsd-nat.c: Remove _initialize_alphabsd_nat prototype. * alpha-linux-nat.c: Remove _initialize_alpha_linux_nat prototype. * alpha-linux-tdep.c: Remove _initialize_alpha_linux_tdep prototype. * alpha-nbsd-tdep.c: Remove _initialize_alphanbsd_tdep prototype. * alpha-obsd-tdep.c: Remove _initialize_alphaobsd_tdep prototype. * alpha-tdep.c: Remove _initialize_alpha_tdep prototype. * amd64-darwin-tdep.c: Remove _initialize_amd64_darwin_tdep prototype. * amd64-dicos-tdep.c: Remove _initialize_amd64_dicos_tdep prototype. * amd64-fbsd-nat.c: Remove _initialize_amd64fbsd_nat prototype. * amd64-fbsd-tdep.c: Remove _initialize_amd64fbsd_tdep prototype. * amd64-linux-nat.c: Remove _initialize_amd64_linux_nat prototype. * amd64-linux-tdep.c: Remove _initialize_amd64_linux_tdep prototype. * amd64-nbsd-nat.c: Remove _initialize_amd64nbsd_nat prototype. * amd64-nbsd-tdep.c: Remove _initialize_amd64nbsd_tdep prototype. * amd64-obsd-nat.c: Remove _initialize_amd64obsd_nat prototype. * amd64-obsd-tdep.c: Remove _initialize_amd64obsd_tdep prototype. * amd64-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype. * amd64-tdep.c: Remove _initialize_amd64_tdep prototype. * amd64-windows-nat.c: Remove _initialize_amd64_windows_nat prototype. * amd64-windows-tdep.c: Remove _initialize_amd64_windows_tdep prototype. * annotate.c: Remove _initialize_annotate prototype. * arc-newlib-tdep.c: Remove _initialize_arc_newlib_tdep prototype. * arc-tdep.c: Remove _initialize_arc_tdep prototype. * arch-utils.c: Remove _initialize_gdbarch_utils prototype. * arm-linux-nat.c: Remove _initialize_arm_linux_nat prototype. * arm-linux-tdep.c: Remove _initialize_arm_linux_tdep prototype. * arm-nbsd-tdep.c: Remove _initialize_arm_netbsd_tdep prototype. * arm-obsd-tdep.c: Remove _initialize_armobsd_tdep prototype. * arm-symbian-tdep.c: Remove _initialize_arm_symbian_tdep prototype. * arm-tdep.c: Remove _initialize_arm_tdep prototype. * arm-wince-tdep.c: Remove _initialize_arm_wince_tdep prototype. * auto-load.c: Remove _initialize_auto_load prototype. * auxv.c: Remove _initialize_auxv prototype. * avr-tdep.c: Remove _initialize_avr_tdep prototype. * ax-gdb.c: Remove _initialize_ax_gdb prototype. * bfin-linux-tdep.c: Remove _initialize_bfin_linux_tdep prototype. * bfin-tdep.c: Remove _initialize_bfin_tdep prototype. * break-catch-sig.c: Remove _initialize_break_catch_sig prototype. * break-catch-syscall.c: Remove _initialize_break_catch_syscall prototype. * break-catch-throw.c: Remove _initialize_break_catch_throw prototype. * breakpoint.c: Remove _initialize_breakpoint prototype. * bsd-uthread.c: Remove _initialize_bsd_uthread prototype. * btrace.c: Remove _initialize_btrace prototype. * charset.c: Remove _initialize_charset prototype. * cli/cli-cmds.c: Remove _initialize_cli_cmds prototype. * cli/cli-dump.c: Remove _initialize_cli_dump prototype. * cli/cli-interp.c: Remove _initialize_cli_interp prototype. * cli/cli-logging.c: Remove _initialize_cli_logging prototype. * cli/cli-script.c: Remove _initialize_cli_script prototype. * coff-pe-read.c: Remove _initialize_coff_pe_read prototype. * coffread.c: Remove _initialize_coffread prototype. * compile/compile.c: Remove _initialize_compile prototype. * complaints.c: Remove _initialize_complaints prototype. * completer.c: Remove _initialize_completer prototype. * copying.awk: Remove _initialize_copying prototype. * copying.c: Regenerate. * core-regset.c: Remove _initialize_core_regset prototype. * corefile.c: Remove _initialize_core prototype. * corelow.c: Remove _initialize_corelow prototype. * cp-abi.c: Remove _initialize_cp_abi prototype. * cp-namespace.c: Remove _initialize_cp_namespace prototype. * cp-support.c: Remove _initialize_cp_support prototype. * cp-valprint.c: Remove _initialize_cp_valprint prototype. * cris-linux-tdep.c: Remove _initialize_cris_linux_tdep prototype. * cris-tdep.c: Remove _initialize_cris_tdep prototype. * ctf.c: Remove _initialize_ctf prototype. * d-lang.c: Remove _initialize_d_language prototype. * darwin-nat-info.c: Remove _initialize_darwin_info_commands prototype. * darwin-nat.c: Remove _initialize_darwin_inferior prototype. * dbxread.c: Remove _initialize_dbxread prototype. * dcache.c: Remove _initialize_dcache prototype. * demangle.c: Remove _initialize_demangler prototype. * disasm-selftests.c: Remove _initialize_disasm_selftests prototype. * disasm.c: Remove _initialize_disasm prototype. * dtrace-probe.c: Remove _initialize_dtrace_probe prototype. * dummy-frame.c: Remove _initialize_dummy_frame prototype. * dwarf2-frame-tailcall.c: Remove _initialize_tailcall_frame prototype. * dwarf2-frame.c: Remove _initialize_dwarf2_frame prototype. * dwarf2expr.c: Remove _initialize_dwarf2expr prototype. * dwarf2loc.c: Remove _initialize_dwarf2loc prototype. * dwarf2read.c: Remove _initialize_dwarf2_read prototype. * elfread.c: Remove _initialize_elfread prototype. * exec.c: Remove _initialize_exec prototype. * extension.c: Remove _initialize_extension prototype. * f-lang.c: Remove _initialize_f_language prototype. * f-valprint.c: Remove _initialize_f_valprint prototype. * fbsd-nat.c: Remove _initialize_fbsd_nat prototype. * fbsd-tdep.c: Remove _initialize_fbsd_tdep prototype. * filesystem.c: Remove _initialize_filesystem prototype. * findcmd.c: Remove _initialize_mem_search prototype. * fork-child.c: Remove _initialize_fork_child prototype. * frame-base.c: Remove _initialize_frame_base prototype. * frame-unwind.c: Remove _initialize_frame_unwind prototype. * frame.c: Remove _initialize_frame prototype. * frv-linux-tdep.c: Remove _initialize_frv_linux_tdep prototype. * frv-tdep.c: Remove _initialize_frv_tdep prototype. * ft32-tdep.c: Remove _initialize_ft32_tdep prototype. * gcore.c: Remove _initialize_gcore prototype. * gdb_bfd.c: Remove _initialize_gdb_bfd prototype. * gdbarch.c: Regenerate. * gdbarch.sh: Remove _initialize_gdbarch prototype. * gdbtypes.c: Remove _initialize_gdbtypes prototype. * gnu-nat.c: Remove _initialize_gnu_nat prototype. * gnu-v2-abi.c: Remove _initialize_gnu_v2_abi prototype. * gnu-v3-abi.c: Remove _initialize_gnu_v3_abi prototype. * go-lang.c: Remove _initialize_go_language prototype. * go32-nat.c: Remove _initialize_go32_nat prototype. * guile/guile.c: Remove _initialize_guile prototype. * h8300-tdep.c: Remove _initialize_h8300_tdep prototype. * hppa-linux-nat.c: Remove _initialize_hppa_linux_nat prototype. * hppa-linux-tdep.c: Remove _initialize_hppa_linux_tdep prototype. * hppa-nbsd-nat.c: Remove _initialize_hppanbsd_nat prototype. * hppa-nbsd-tdep.c: Remove _initialize_hppanbsd_tdep prototype. * hppa-obsd-nat.c: Remove _initialize_hppaobsd_nat prototype. * hppa-obsd-tdep.c: Remove _initialize_hppaobsd_tdep prototype. * hppa-tdep.c: Remove _initialize_hppa_tdep prototype. * i386-bsd-nat.c: Remove _initialize_i386bsd_nat prototype. * i386-cygwin-tdep.c: Remove _initialize_i386_cygwin_tdep prototype. * i386-darwin-tdep.c: Remove _initialize_i386_darwin_tdep prototype. * i386-dicos-tdep.c: Remove _initialize_i386_dicos_tdep prototype. * i386-fbsd-nat.c: Remove _initialize_i386fbsd_nat prototype. * i386-fbsd-tdep.c: Remove _initialize_i386fbsd_tdep prototype. * i386-gnu-nat.c: Remove _initialize_i386gnu_nat prototype. * i386-gnu-tdep.c: Remove _initialize_i386gnu_tdep prototype. * i386-linux-nat.c: Remove _initialize_i386_linux_nat prototype. * i386-linux-tdep.c: Remove _initialize_i386_linux_tdep prototype. * i386-nbsd-nat.c: Remove _initialize_i386nbsd_nat prototype. * i386-nbsd-tdep.c: Remove _initialize_i386nbsd_tdep prototype. * i386-nto-tdep.c: Remove _initialize_i386nto_tdep prototype. * i386-obsd-nat.c: Remove _initialize_i386obsd_nat prototype. * i386-obsd-tdep.c: Remove _initialize_i386obsd_tdep prototype. * i386-sol2-nat.c: Remove _initialize_amd64_sol2_nat prototype. * i386-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype. * i386-tdep.c: Remove _initialize_i386_tdep prototype. * i386-windows-nat.c: Remove _initialize_i386_windows_nat prototype. * ia64-libunwind-tdep.c: Remove _initialize_libunwind_frame prototype. * ia64-linux-nat.c: Remove _initialize_ia64_linux_nat prototype. * ia64-linux-tdep.c: Remove _initialize_ia64_linux_tdep prototype. * ia64-tdep.c: Remove _initialize_ia64_tdep prototype. * ia64-vms-tdep.c: Remove _initialize_ia64_vms_tdep prototype. * infcall.c: Remove _initialize_infcall prototype. * infcmd.c: Remove _initialize_infcmd prototype. * inferior.c: Remove _initialize_inferiors prototype. * inflow.c: Remove _initialize_inflow prototype. * infrun.c: Remove _initialize_infrun prototype. * interps.c: Remove _initialize_interpreter prototype. * iq2000-tdep.c: Remove _initialize_iq2000_tdep prototype. * jit.c: Remove _initialize_jit prototype. * language.c: Remove _initialize_language prototype. * linux-fork.c: Remove _initialize_linux_fork prototype. * linux-nat.c: Remove _initialize_linux_nat prototype. * linux-tdep.c: Remove _initialize_linux_tdep prototype. * linux-thread-db.c: Remove _initialize_thread_db prototype. * lm32-tdep.c: Remove _initialize_lm32_tdep prototype. * m2-lang.c: Remove _initialize_m2_language prototype. * m32c-tdep.c: Remove _initialize_m32c_tdep prototype. * m32r-linux-nat.c: Remove _initialize_m32r_linux_nat prototype. * m32r-linux-tdep.c: Remove _initialize_m32r_linux_tdep prototype. * m32r-tdep.c: Remove _initialize_m32r_tdep prototype. * m68hc11-tdep.c: Remove _initialize_m68hc11_tdep prototype. * m68k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype. * m68k-bsd-tdep.c: Remove _initialize_m68kbsd_tdep prototype. * m68k-linux-nat.c: Remove _initialize_m68k_linux_tdep prototype. * m68k-linux-tdep.c: Remove _initialize_m68k_linux_tdep prototype. * m68k-tdep.c: Remove _initialize_m68k_tdep prototype. * m88k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype. * m88k-tdep.c: Remove _initialize_m68kbsd_tdep prototype. * machoread.c: Remove _initialize_machoread prototype. * macrocmd.c: Remove _initialize_macrocmd prototype. * macroscope.c: Remove _initialize_macroscope prototype. * maint.c: Remove _initialize_maint_cmds prototype. * mdebugread.c: Remove _initialize_mdebugread prototype. * memattr.c: Remove _initialize_mem prototype. * mep-tdep.c: Remove _initialize_mep_tdep prototype. * mi/mi-cmd-env.c: Remove _initialize_mi_cmd_env prototype. * mi/mi-cmds.c: Remove _initialize_mi_cmds prototype. * mi/mi-interp.c: Remove _initialize_mi_interp prototype. * mi/mi-main.c: Remove _initialize_mi_main prototype. * microblaze-linux-tdep.c: Remove _initialize_microblaze_linux_tdep prototype. * microblaze-tdep.c: Remove _initialize_microblaze_tdep prototype. * mips-fbsd-nat.c: Remove _initialize_mips_fbsd_nat prototype. * mips-fbsd-tdep.c: Remove _initialize_mips_fbsd_tdep prototype. * mips-linux-nat.c: Remove _initialize_mips_linux_nat prototype. * mips-linux-tdep.c: Remove _initialize_mips_linux_tdep prototype. * mips-nbsd-nat.c: Remove _initialize_mipsnbsd_nat prototype. * mips-nbsd-tdep.c: Remove _initialize_mipsnbsd_tdep prototype. * mips-sde-tdep.c: Remove _initialize_mips_sde_tdep prototype. * mips-tdep.c: Remove _initialize_mips_tdep prototype. * mips64-obsd-nat.c: Remove _initialize_mips64obsd_nat prototype. * mips64-obsd-tdep.c: Remove _initialize_mips64obsd_tdep prototype. * mipsread.c: Remove _initialize_mipsread prototype. * mn10300-linux-tdep.c: Remove _initialize_mn10300_linux_tdep prototype. * mn10300-tdep.c: Remove _initialize_mn10300_tdep prototype. * moxie-tdep.c: Remove _initialize_moxie_tdep prototype. * msp430-tdep.c: Remove _initialize_msp430_tdep prototype. * mt-tdep.c: Remove _initialize_mt_tdep prototype. * nds32-tdep.c: Remove _initialize_nds32_tdep prototype. * nios2-linux-tdep.c: Remove _initialize_nios2_linux_tdep prototype. * nios2-tdep.c: Remove _initialize_nios2_tdep prototype. * nto-procfs.c: Remove _initialize_procfs prototype. * nto-tdep.c: Remove _initialize_nto_tdep prototype. * objc-lang.c: Remove _initialize_objc_language prototype. * objfiles.c: Remove _initialize_objfiles prototype. * observer.c: Remove observer_test_first_notification_function, observer_test_second_notification_function, observer_test_third_notification_function, and _initialize_observer prototypes. * opencl-lang.c: Remove _initialize_opencl_language prototypes. * osabi.c: Remove _initialize_gdb_osabi prototype. * osdata.c: Remove _initialize_osdata prototype. * p-valprint.c: Remove _initialize_pascal_valprint prototype. * parse.c: Remove _initialize_parse prototype. * ppc-fbsd-nat.c: Remove _initialize_ppcfbsd_nat prototype. * ppc-fbsd-tdep.c: Remove _initialize_ppcfbsd_tdep prototype. * ppc-linux-nat.c: Remove _initialize_ppc_linux_nat prototype. * ppc-linux-tdep.c: Remove _initialize_ppc_linux_tdep prototype. * ppc-nbsd-nat.c: Remove _initialize_ppcnbsd_nat prototype. * ppc-nbsd-tdep.c: Remove _initialize_ppcnbsd_tdep prototype. * ppc-obsd-nat.c: Remove _initialize_ppcobsd_nat prototype. * ppc-obsd-tdep.c: Remove _initialize_ppcobsd_tdep prototype. * printcmd.c: Remove _initialize_printcmd prototype. * probe.c: Remove _initialize_probe prototype. * proc-api.c: Remove _initialize_proc_api prototype. * proc-events.c: Remove _initialize_proc_events prototype. * proc-service.c: Remove _initialize_proc_service prototype. * procfs.c: Remove _initialize_procfs prototype. * psymtab.c: Remove _initialize_psymtab prototype. * python/python.c: Remove _initialize_python prototype. * ravenscar-thread.c: Remove _initialize_ravenscar prototype. * record-btrace.c: Remove _initialize_record_btrace prototype. * record-full.c: Remove _initialize_record_full prototype. * record.c: Remove _initialize_record prototype. * regcache.c: Remove _initialize_regcache prototype. * reggroups.c: Remove _initialize_reggroup prototype. * remote-notif.c: Remove _initialize_notif prototype. * remote-sim.c: Remove _initialize_remote_sim prototype. * remote.c: Remove _initialize_remote prototype. * reverse.c: Remove _initialize_reverse prototype. * rl78-tdep.c: Remove _initialize_rl78_tdep prototype. * rs6000-aix-tdep.c: Remove _initialize_rs6000_aix_tdep prototype. * rs6000-lynx178-tdep.c: Remove _initialize_rs6000_lynx178_tdep prototype. * rs6000-nat.c: Remove _initialize_rs6000_nat prototype. * rs6000-tdep.c: Remove _initialize_rs6000_tdep prototype. * rust-exp.y: Remove _initialize_rust_exp prototype. * rx-tdep.c: Remove _initialize_rx_tdep prototype. * s390-linux-nat.c: Remove _initialize_s390_nat prototype. * s390-linux-tdep.c: Remove _initialize_s390_tdep prototype. * score-tdep.c: Remove _initialize_score_tdep prototype. * selftest-arch.c: Remove _initialize_selftests_foreach_arch prototype. * ser-go32.c: Remove _initialize_ser_dos prototype. * ser-mingw.c: Remove _initialize_ser_windows prototype. * ser-pipe.c: Remove _initialize_ser_pipe prototype. * ser-tcp.c: Remove _initialize_ser_tcp prototype. * ser-unix.c: Remove _initialize_ser_hardwire prototype. * serial.c: Remove _initialize_serial prototype. * sh-linux-tdep.c: Remove _initialize_sh_linux_tdep prototype. * sh-nbsd-nat.c: Remove _initialize_shnbsd_nat prototype. * sh-nbsd-tdep.c: Remove _initialize_shnbsd_tdep prototype. * sh-tdep.c: Remove _initialize_sh_tdep prototype. * skip.c: Remove _initialize_step_skip prototype. * sol-thread.c: Remove _initialize_sol_thread prototype. * solib-aix.c: Remove _initialize_solib_aix prototype. * solib-darwin.c: Remove _initialize_darwin_solib prototype. * solib-dsbt.c: Remove _initialize_dsbt_solib prototype. * solib-frv.c: Remove _initialize_frv_solib prototype. * solib-spu.c: Remove _initialize_spu_solib prototype. * solib-svr4.c: Remove _initialize_svr4_solib prototype. * solib-target.c: Remove _initialize_solib_target prototype. * solib.c: Remove _initialize_solib prototype. * source.c: Remove _initialize_source prototype. * sparc-linux-nat.c: Remove _initialize_sparc_linux_nat prototype. * sparc-linux-tdep.c: Remove _initialize_sparc_linux_tdep prototype. * sparc-nat.c: Remove _initialize_sparc_nat prototype. * sparc-nbsd-nat.c: Remove _initialize_sparcnbsd_nat prototype. * sparc-nbsd-tdep.c: Remove _initialize_sparcnbsd_tdep prototype. * sparc-obsd-tdep.c: Remove _initialize_sparc32obsd_tdep prototype. * sparc-sol2-nat.c: Remove _initialize_sparc_sol2_nat prototype. * sparc-sol2-tdep.c: Remove _initialize_sparc_sol2_tdep prototype. * sparc-tdep.c: Remove _initialize_sparc_tdep prototype. * sparc64-fbsd-nat.c: Remove _initialize_sparc64fbsd_nat prototype. * sparc64-fbsd-tdep.c: Remove _initialize_sparc64fbsd_tdep prototype. * sparc64-linux-nat.c: Remove _initialize_sparc64_linux_nat prototype. * sparc64-linux-tdep.c: Remove _initialize_sparc64_linux_tdep prototype. * sparc64-nat.c: Remove _initialize_sparc64_nat prototype. * sparc64-nbsd-nat.c: Remove _initialize_sparc64nbsd_nat prototype. * sparc64-nbsd-tdep.c: Remove _initialize_sparc64nbsd_tdep prototype. * sparc64-obsd-nat.c: Remove _initialize_sparc64obsd_nat prototype. * sparc64-obsd-tdep.c: Remove _initialize_sparc64obsd_tdep prototype. * sparc64-sol2-tdep.c: Remove _initialize_sparc64_sol2_tdep prototype. * spu-linux-nat.c: Remove _initialize_spu_nat prototype. * spu-multiarch.c: Remove _initialize_spu_multiarch prototype. * spu-tdep.c: Remove _initialize_spu_tdep prototype. * stabsread.c: Remove _initialize_stabsread prototype. * stack.c: Remove _initialize_stack prototype. * stap-probe.c: Remove _initialize_stap_probe prototype. * std-regs.c: Remove _initialize_frame_reg prototype. * symfile-debug.c: Remove _initialize_symfile_debug prototype. * symfile-mem.c: Remove _initialize_symfile_mem prototype. * symfile.c: Remove _initialize_symfile prototype. * symmisc.c: Remove _initialize_symmisc prototype. * symtab.c: Remove _initialize_symtab prototype. * target-dcache.c: Remove _initialize_target_dcache prototype. * target-descriptions.c: Remove _initialize_target_descriptions prototype. * thread.c: Remove _initialize_thread prototype. * tic6x-linux-tdep.c: Remove _initialize_tic6x_linux_tdep prototype. * tic6x-tdep.c: Remove _initialize_tic6x_tdep prototype. * tilegx-linux-nat.c: Remove _initialize_tile_linux_nat prototype. * tilegx-linux-tdep.c: Remove _initialize_tilegx_linux_tdep prototype. * tilegx-tdep.c: Remove _initialize_tilegx_tdep prototype. * tracefile-tfile.c: Remove _initialize_tracefile_tfile prototype. * tracefile.c: Remove _initialize_tracefile prototype. * tracepoint.c: Remove _initialize_tracepoint prototype. * tui/tui-hooks.c: Remove _initialize_tui_hooks prototype. * tui/tui-interp.c: Remove _initialize_tui_interp prototype. * tui/tui-layout.c: Remove _initialize_tui_layout prototype. * tui/tui-regs.c: Remove _initialize_tui_regs prototype. * tui/tui-stack.c: Remove _initialize_tui_stack prototype. * tui/tui-win.c: Remove _initialize_tui_win prototype. * tui/tui.c: Remove _initialize_tui prototype. * typeprint.c: Remove _initialize_typeprint prototype. * user-regs.c: Remove _initialize_user_regs prototype. * utils.c: Remove _initialize_utils prototype. * v850-tdep.c: Remove _initialize_v850_tdep prototype. * valarith.c: Remove _initialize_valarith prototype. * valops.c: Remove _initialize_valops prototype. * valprint.c: Remove _initialize_valprint prototype. * value.c: Remove _initialize_values prototype. * varobj.c: Remove _initialize_varobj prototype. * vax-bsd-nat.c: Remove _initialize_vaxbsd_nat prototype. * vax-nbsd-tdep.c: Remove _initialize_vaxnbsd_tdep prototype. * vax-tdep.c: Remove _initialize_vax_tdep prototype. * windows-nat.c: Remove _initialize_windows_nat, _initialize_check_for_gdb_ini, and _initialize_loadable prototypes. * windows-tdep.c: Remove _initialize_windows_tdep prototype. * xcoffread.c: Remove _initialize_xcoffread prototype. * xml-support.c: Remove _initialize_xml_support prototype. * xstormy16-tdep.c: Remove _initialize_xstormy16_tdep prototype. * xtensa-linux-nat.c: Remove _initialize_xtensa_linux_nat prototype. * xtensa-linux-tdep.c: Remove _initialize_xtensa_linux_tdep prototype. * xtensa-tdep.c: Remove _initialize_xtensa_tdep prototype. |
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Simon Marchi
|
bf93d7ba99 |
Add thread after updating gdbarch when exec'ing
As mentioned in the previous patch, we should avoid doing register reads after a process does an exec and before we've updated that inferior's gdbarch. Otherwise, we may interpret the registers using the wrong architecture. When a process does an exec with "follow-exec-mode new", a new inferior is added by follow_exec. The gdbarch of that new inferior is at first set to some default value, probably specific to the gdb build (I get "i386" here), which may not be the right one. It is updated later by the call to target_find_description. Before that point, if we try to read the inferior's registers, we may not interpret them correctly. This has been exposed by a failure in gdb.base/foll-exec-mode.exp after the previous patch, with: Remote 'g' packet reply is too long (expected 312 bytes, got 816 bytes) The call to "add_thread" done just after adding the inferior is problematic, because it ends up reading the registers (because the ptid is re-used, we end up doing a switch_to_thread to it, which tries to update stop_pc). The registers returned by gdbserver are the x86-64 ones, while we try to interpret them using the "i386" gdbarch. Postponing the call to add_thread to until the target description/gdbarch has been updated seems to fix the issue. As to why this issue was uncovered by the previous patch: what I think happened before that patch is that since we were updating stop_pc before switching to the new inferior, we were filling the regcache associated to the ptid (this worked fine as long as the architectures of the previous and new process images were the same). The call to switch_to_thread then worked, because the register read hit the regcache. Now, it triggers a register read, while the gdbarch is not set correctly, leading to the "reply is too long" error. If this is right, it sounds wrong that we delete and re-add a thread with the same ptid, and are able to access the registers from the deleted thread. When we delete a thread, should we clear the regcache associated to that ptid, so that the new thread starts with a fresh/empty regcache? gdb/ChangeLog: * infrun.c (follow_exec): Call add_thread after target_find_description. |
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Simon Marchi
|
1bb7c05977 |
Read stop_pc after updating the gdbarch when exec'ing
When an inferior execs and changes architecture (e.g. 64 bits to 32 bits), the gdbarch associated to the inferior is updated by the follow_exec call in handle_inferior_event_1. We should avoid doing any register read before that point, because the registers sent by the remote side will be those of the new architecture, but we would interpret them using the old architecture. We do just that by setting stop_pc during this window, which obviously requires reading the registers. This results in gdb.multi/multi-arch-exec.exp failing, GDB outputting the following error: Truncated register 50 in remote 'g' packet This patch fixes that by postponing the setting of stop_pc to after we've updated the inferior gdbarch. This bug was hiding another problem, and as such introduces some failures in gdb.base/foll-exec-mode.exp. The following patch takes care of that. gdb/ChangeLog: * infrun.c (handle_inferior_event_1): When exec'ing, read stop_pc after follow_exec. |
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Pedro Alves
|
51abb42130 |
Kill init_sal
Instead, make symtab_and_line initialize its members itself. Many symtab_and_line declarations are moved to where the object is initialized at the same time both for clarity and to avoid double initialization. A few functions, like e.g., find_frame_sal are adjusted to return the sal using normal function return instead of an output parameter likewise to avoid having to default-construct a sal and then immediately have the object overwritten. gdb/ChangeLog: 2017-09-04 Pedro Alves <palves@redhat.com> * ada-lang.c (is_known_support_routine): Move sal declaration to where it is initialized. * breakpoint.c (create_internal_breakpoint, init_catchpoint) (parse_breakpoint_sals, decode_static_tracepoint_spec) (clear_command, update_static_tracepoint): Remove init_sal references. Move declarations closer to initializations. * cli/cli-cmds.c (list_command): Move sal declarations closer to initializations. * elfread.c (elf_gnu_ifunc_resolver_stop): Remove init_sal references. Move sal declarations closer to initializations. * frame.c (find_frame_sal): Return a symtab_and_line via function return instead of output parameter. Remove init_sal references. * frame.h (find_frame_sal): Return a symtab_and_line via function return instead of output parameter. * guile/scm-frame.c (gdbscm_frame_sal): Adjust. * guile/scm-symtab.c (stscm_make_sal_smob): Use in-place new instead of memset. (gdbscm_find_pc_line): Remove init_sal reference. * infcall.c (call_function_by_hand_dummy): Remove init_sal references. Move declarations closer to initializations. * infcmd.c (set_step_frame): Update. Move declarations closer to initializations. (finish_backward): Remove init_sal references. Move declarations closer to initializations. * infrun.c (process_event_stop_test, handle_step_into_function) (insert_hp_step_resume_breakpoint_at_frame) (insert_step_resume_breakpoint_at_caller): Likewise. * linespec.c (create_sals_line_offset, decode_digits_ordinary) (symbol_to_sal): Likewise. * probe.c (parse_probes_in_pspace): Remove init_sal reference. * python/py-frame.c (frapy_find_sal): Move sal declaration closer to its initialization. * reverse.c (save_bookmark_command): Use new/delete. Remove init_sal references. Move declarations closer to initializations. * source.c (get_current_source_symtab_and_line): Remove brace initialization. (set_current_source_symtab_and_line): Now takes the sal by const reference. Remove brace initialization. (line_info): Remove init_sal reference. * source.h (set_current_source_symtab_and_line): Now takes a symtab_and_line via const reference. * stack.c (set_current_sal_from_frame): Adjust. (print_frame_info): Adjust. (get_last_displayed_sal): Return the sal via function return instead of via output parameter. Simplify. (frame_info): Adjust. * stack.h (get_last_displayed_sal): Return the sal via function return instead of via output parameter. * symtab.c (init_sal): Delete. (find_pc_sect_line): Remove init_sal references. Move declarations closer to initializations. (find_function_start_sal): Remove init_sal references. Move declarations closer to initializations. * symtab.h (struct symtab_and_line): In-class initialize all fields. * tracepoint.c (set_traceframe_context) (print_one_static_tracepoint_marker): Remove init_sal references. Move declarations closer to initializations. * tui/tui-disasm.c (tui_show_disassem_and_update_source): Adjust. * tui/tui-stack.c (tui_show_frame_info): Adjust. Move declarations closer to initializations. * tui/tui-winsource.c (tui_update_source_window_as_is): Remove init_sal references. Adjust. |
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Simon Marchi
|
23fdd69e42 |
Make target_waitstatus_to_string return an std::string
A quite straightforward change. It does "fix" leaks in record-btrace.c, although since this is only used in debug printing code, it has no real world impact. gdb/ChangeLog: * target/waitstatus.h (target_waitstatus_to_string): Change return type to std::string. * target/waitstatus.c (target_waitstatus_to_string): Return std::string. * target.h (target_waitstatus_to_string): Remove declaration. * infrun.c (resume, clear_proceed_status_thread, print_target_wait_results, do_target_wait, save_waitstatus, stop_all_threads): Adjust. * record-btrace.c (record_btrace_wait): Adjust. * target-debug.h (target_debug_print_struct_target_waitstatus_p): Adjust. gdb/gdbserver/ChangeLog: * linux-low.c (linux_wait_1): Adjust. * server.c (queue_stop_reply_callback): Adjust. |
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Simon Marchi
|
11db943032 |
Rename some command functions
This patch renames a few functions implementing CLI commands to follow the style <command-name>_command, so that they are easier to search for. gdb/ChangeLog: * breakpoint.c (breakpoints_info): Rename to ... (info_breakpoints_command): ... this. (watchpoints_info): Rename to ... (info_watchpoints_command): ... this. (tracepoints_info): Rename to ... (info_tracepoints_command): ... this. (_initialize_breakpoint): Adjust. * dcache.c (dcache_info): Rename to ... (info_display_command): ... this. (_initialize_dcache): Adjust. * frame.h (args_info): Rename to ... (info_args_command): ... this. (locals_info): Rename to ... (info_locals_command): ... this. * infcmd.c (nofp_registers_info): Rename to ... (info_registers_command): ... this. (float_info): Rename to ... (info_float_command): ... this. (program_info): Rename to ... (info_program_command): ... this. (all_registers_info): Rename to ... (info_all_registers_command): ... this. (vector_info): Rename to ... (info_vector_command): ... this. (float_info): Rename to ... (info_float_command): ... this. (_initialize_infcmd): Adjust. * inferior.h (term_info): Rename to ... (info_terminal_command): ... this. * inflow.c (term_info): Rename to ... (info_terminal_command): ... this. (_initialize_inflow): Adjust. * infrun.c (signals_info): Rename to ... (info_signals_command): ... this. (_initialize_infrun): Adjust. * objc-lang.c (classes_info): Rename to ... (info_classes_command): ... this. (selectors_info): Rename to ... (info_selectors_command): ... this. (_initialize_objc_language): Adjust. * printcmd.c (sym_info): Rename to ... (info_symbol_command): ... this. (address_info): Rename to ... (info_address_command): ... this. (display_info): Rename to ... (info_display_command): ... this. (_initialize_printcmd): Adjust. * reverse.c (bookmarks_info): Rename to ... (info_breakpoints_command): ... this. (_initialize_reverse): Adjust. * ser-go32.c (dos_info): Rename to ... (info_serial_command): ... this. (_initialize_ser_dos): Adjust. * skip.c (skip_info): Rename to ... (info_skip_command): ... this. (_initialize_step_skip): Adjust. * source.c (line_info): Rename to ... (info_line_command): ... this. (source_info): Rename to ... (info_source_command) * stack.c (frame_info): Rename to ... (info_frame_command): ... this. (locals_info): Rename to ... (info_locals_command): ... this. (args_info): Rename to ... (info_args_command): ... this. (_initialize_stack): Adjust. * symtab.c (sources_info): Rename to ... (info_sources_command): ... this. (variables_info): Rename to ... (info_variables_command): ... this. (functions_info): Rename to ... (info_functions_command): ... this. (types_info): Rename to ... (info_types_command): ... this. (_initialize_symtab): Adjust. * target.c (target_info): Rename to ... (info_target_command): ... this. (initialize_targets): Adjust. * tracepoint.c (tvariables_info): Rename to ... (info_tvariables_command): ... this. (scope_info): Rename to ... (info_scope_command): ... this. (trace_dump_actions): Adjust. (_initialize_tracepoint): Adjust. |
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Tom Tromey
|
2989a3651d |
Remove save_inferior_ptid
This removes save_inferior_ptid, a cleanup function, in favor of scoped_restore. This also fixes a possible (it seems unlikely that it could happen in practice) memory leak -- save_inferior_ptid should have used make_cleanup_dtor, because it allocated memory. I tested this on the buildbot. However, there are two caveats to this. First, sometimes it seems I misread the results. Second, I think this patch touches some platforms that can't be tested by the buildbot. So, extra care seems warranted. ChangeLog 2017-08-18 Tom Tromey <tom@tromey.com> Pedro Alves <palves@redhat.com> * spu-multiarch.c (parse_spufs_run): Use scoped_restore. * sol-thread.c (sol_thread_resume, sol_thread_wait) (sol_thread_xfer_partial, rw_common): Use scoped_restore. * procfs.c (procfs_do_thread_registers): Use scoped_restore. * proc-service.c (ps_xfer_memory): Use scoped_restore. * linux-tdep.c (linux_corefile_thread): Remove a cleanup. (linux_get_siginfo_data): Add "thread" argument. Use scoped_restore. * linux-nat.c (linux_child_follow_fork) (check_stopped_by_watchpoint): Use scoped_restore. * infrun.c (displaced_step_prepare_throw, write_memory_ptid) (THREAD_STOPPED_BY, handle_signal_stop): Use scoped_restore. (restore_inferior_ptid, save_inferior_ptid): Remove. * btrace.c (btrace_fetch): Use scoped_restore. * bsd-uthread.c (bsd_uthread_fetch_registers) (bsd_uthread_store_registers): Use scoped_restore. * breakpoint.c (reattach_breakpoints, detach_breakpoints): Use scoped_restore. * aix-thread.c (aix_thread_resume, aix_thread_wait) (aix_thread_xfer_partial): Use scoped_restore. * inferior.h (save_inferior_ptid): Remove. |
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Pedro Alves
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de7985c3cc |
More gdb/skip.c C++ification
- Make skiplist_entry a class with private data members. - Move all construction logic to the ctor. - Make skip_file_p etc be methods of skiplist_entry. - Use std::list for the skip entries chain. Make the list own its elements. - Get rid of the ALL_SKIPLIST_ENTRIES/ALL_SKIPLIST_ENTRIES_SAFE macros, use range-for / iterators instead. - function_name_is_marked_for_skip 'function_sal' argument must be non-NULL, so make it a reference instead. All skiplist_entry invariants are now controlled by skiplist_entry methods/internals. Some gdb_asserts disappear for being redundant. gdb/ChangeLog: 2017-08-11 Pedro Alves <palves@redhat.com> * infrun.c (process_event_stop_test): Adjust function_name_is_marked_for_skip call. * skip.c: Include <list>. (skiplist_entry): Make it a class with private fields, and getters/setters. (skiplist_entry_chain): Delete. (skiplist_entries): New. (skiplist_entry_count): Delete. (highest_skiplist_entry_num): New. (ALL_SKIPLIST_ENTRIES, ALL_SKIPLIST_ENTRIES_SAFE): Delete. (add_skiplist_entry): Delete. (skiplist_entry::skiplist_entry): New. (skiplist_entry::add_entry): New. (skip_file_command, skip_function): Adjust. (compile_skip_regexp): Delete. (skip_command): Don't compile regexp here. Adjust to use skiplist_entry::add_entry. (skip_info): Adjust to use range-for and getters. (skip_enable_command, skip_disable_command): Adjust to use range-for and setters. (skip_delete_command): Adjust to use std::list. (add_skiplist_entry): Delete. (skip_file_p): Delete, refactored as ... (skiplist_entry::do_skip_file_p): ... this new method. (skip_gfile_p): Delete, refactored as ... (skiplist_entry::do_gskip_file_p): ... this new method. (skip_function_p, skip_rfunction_p): Delete, refactored as ... (skiplist_entry::skip_function_p): ... this new method. (function_name_is_marked_for_skip): Now returns bool, and takes the function sal by const reference. Adjust to use range-for and skiplist_entry methods. (_initialize_step_skip): Remove references to skiplist_entry_chain, skiplist_entry_count. * skip.h (function_name_is_marked_for_skip): Now returns bool, and takes the function sal by const reference. |
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Tom Tromey
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773a1edcd1 |
Introduce gdb_argv, a class wrapper for buildargv
This introduces gdb_argv, a class wrapping an "argv" pointer; that is, a pointer to a NULL-terminated array of char*, where both the array and each non-NULL element in the array are xmalloc'd. This patch then changes most users of gdb_buildargv to use gdb_argv instead. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.h (struct gdb_argv_deleter): New. (gdb_argv): New class. * utils.c (gdb_argv::reset): New method. * tracepoint.c (delete_trace_variable_command): Use gdb_argv. * tracefile.c (tsave_command): Use gdb_argv. * top.c (new_ui_command): Use gdb_argv. * symmisc.c (maintenance_print_symbols) (maintenance_print_msymbols, maintenance_expand_symtabs): Use gdb_argv. * symfile.c (symbol_file_command, generic_load) (remove_symbol_file_command): Use gdb_argv. * stack.c (backtrace_command): Use gdb_argv. * source.c (add_path, show_substitute_path_command) (unset_substitute_path_command, set_substitute_path_command): Use gdb_argv. * skip.c (skip_command): Use gdb_argv. Use gdb_buildargv. * ser-mingw.c (pipe_windows_open): Use gdb_argv. * remote.c (extended_remote_run, remote_put_command) (remote_get_command, remote_delete_command): Use gdb_argv. * remote-sim.c (gdbsim_load, gdbsim_create_inferior) (gdbsim_open): Use gdb_argv. * python/py-cmd.c (gdbpy_string_to_argv): Use gdb_argv. * psymtab.c (maintenance_print_psymbols): Use gdb_argv. * procfs.c (procfs_info_proc): Use gdb_argv. * interps.c (interpreter_exec_cmd): Use gdb_argv. * infrun.c (handle_command): Use gdb_argv. * inferior.c (add_inferior_command, clone_inferior_command): Use gdb_argv. * guile/scm-string.c (gdbscm_string_to_argv): Use gdb_argv. * exec.c (exec_file_command): Use gdb_argv. * cli/cli-cmds.c (alias_command): Use gdb_argv. * compile/compile.c (build_argc_argv): Use gdb_argv. |
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Yao Qi
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46a62268b8 |
Catch exceptions thrown from gdbarch_skip_prologue
PR 21555 is caused by the exception during the prologue analysis when re-set a breakpoint. (gdb) bt #0 memory_error_message (err=TARGET_XFER_E_IO, gdbarch=0x153db50, memaddr=93824992233232) at ../../binutils-gdb/gdb/corefile.c:192 #1 0x00000000005718ed in memory_error (err=TARGET_XFER_E_IO, memaddr=memaddr@entry=93824992233232) at ../../binutils-gdb/gdb/corefile.c:220 #2 0x00000000005719d6 in read_memory_object (object=object@entry=TARGET_OBJECT_CODE_MEMORY, memaddr=93824992233232, memaddr@entry=1, myaddr=myaddr@entry=0x7fffffffd0a0 "P\333S\001", len=len@entry=1) at ../../binutils-gdb/gdb/corefile.c:259 #3 0x0000000000571c6e in read_code (len=1, myaddr=0x7fffffffd0a0 "P\333S\001", memaddr=<optimized out>) at ../../binutils-gdb/gdb/corefile.c:287 #4 read_code_unsigned_integer (memaddr=memaddr@entry=93824992233232, len=len@entry=1, byte_order=byte_order@entry=BFD_ENDIAN_LITTLE) at ../../binutils-gdb/gdb/corefile.c:362 #5 0x000000000041d4a0 in amd64_analyze_prologue (gdbarch=gdbarch@entry=0x153db50, pc=pc@entry=93824992233232, current_pc=current_pc@entry=18446744073709551615, cache=cache@entry=0x7fffffffd1e0) at ../../binutils-gdb/gdb/amd64-tdep.c:2310 #6 0x000000000041e404 in amd64_skip_prologue (gdbarch=0x153db50, start_pc=93824992233232) at ../../binutils-gdb/gdb/amd64-tdep.c:2459 #7 0x000000000067bfb0 in skip_prologue_sal (sal=sal@entry=0x7fffffffd4e0) at ../../binutils-gdb/gdb/symtab.c:3628 #8 0x000000000067c4d8 in find_function_start_sal (sym=sym@entry=0x1549960, funfirstline=1) at ../../binutils-gdb/gdb/symtab.c:3501 #9 0x000000000060999d in symbol_to_sal (result=result@entry=0x7fffffffd5f0, funfirstline=<optimized out>, sym=sym@entry=0x1549960) at ../../binutils-gdb/gdb/linespec.c:3860 .... #16 0x000000000054b733 in location_to_sals (b=b@entry=0x15792d0, location=0x157c230, search_pspace=search_pspace@entry=0x1148120, found=found@entry=0x7fffffffdc64) at ../../binutils-gdb/gdb/breakpoint.c:14211 #17 0x000000000054c1f5 in breakpoint_re_set_default (b=0x15792d0) at ../../binutils-gdb/gdb/breakpoint.c:14301 #18 0x00000000005412a9 in breakpoint_re_set_one (bint=bint@entry=0x15792d0) at ../../binutils-gdb/gdb/breakpoint.c:14412 This problem can be fixed by - either each prologue analyzer doesn't throw exception, - or catch the exception thrown from gdbarch_skip_prologue, I choose the latter because the former needs to fix *every* prologue analyzer to not throw exception. This error can be reproduced by changing reread.exp. The test reread.exp has already test that breakpoint can be reset correctly after the executable is re-read. This patch extends this test by compiling test c file with and without -fPIE. (gdb) run ^M The program being debugged has been started already.^M Start it from the beginning? (y or n) y^M x86_64/gdb/testsuite/outputs/gdb.base/reread/reread' has changed; re-reading symbols. Error in re-setting breakpoint 1: Cannot access memory at address 0x555555554790^M Error in re-setting breakpoint 2: Cannot access memory at address 0x555555554790^M Starting program: /scratch/yao/gdb/build-git/x86_64/gdb/testsuite/outputs/gdb.base/reread/reread ^M This is foo^M [Inferior 1 (process 27720) exited normally]^M (gdb) FAIL: gdb.base/reread.exp: opts= "-fPIE" "ldflags=-pie" : run to foo() second time (the program exited) This patch doesn't re-indent the code, to keep the patch simple. gdb: 2017-07-25 Yao Qi <yao.qi@linaro.org> PR gdb/21555 * arch-utils.c (gdbarch_skip_prologue_noexcept): New function. * arch-utils.h (gdbarch_skip_prologue_noexcept): Declare. * infrun.c: Include arch-utils.h (handle_step_into_function): Call gdbarch_skip_prologue_noexcept. (handle_step_into_function_backward): Likewise. * symtab.c (skip_prologue_sal): Likewise. gdb/testsuite: 2017-07-25 Yao Qi <yao.qi@linaro.org> PR gdb/21555 * gdb.base/reread.exp: Wrap the whole test with two kinds of compilation flags, with -fPIE and without -fPIE. |