5b6d1e4fa4
This commit adds multi-target support to GDB. What this means is that
with this commit, GDB can now be connected to different targets at the
same time. E.g., you can debug a live native process and a core dump
at the same time, connect to multiple gdbservers, etc.
Actually, the word "target" is overloaded in gdb. We already have a
target stack, with pushes several target_ops instances on top of one
another. We also have "info target" already, which means something
completely different to what this patch does.
So from here on, I'll be using the "target connections" term, to mean
an open process_stratum target, pushed on a target stack. This patch
makes gdb have multiple target stacks, and multiple process_stratum
targets open simultaneously. The user-visible changes / commands will
also use this terminology, but of course it's all open to debate.
User-interface-wise, not that much changes. The main difference is
that each inferior may have its own target connection.
A target connection (e.g., a target extended-remote connection) may
support debugging multiple processes, just as before.
Say you're debugging against gdbserver in extended-remote mode, and
you do "add-inferior" to prepare to spawn a new process, like:
(gdb) target extended-remote :9999
...
(gdb) start
...
(gdb) add-inferior
Added inferior 2
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) file a.out
...
(gdb) start
...
At this point, you have two inferiors connected to the same gdbserver.
With this commit, GDB will maintain a target stack per inferior,
instead of a global target stack.
To preserve the behavior above, by default, "add-inferior" makes the
new inferior inherit a copy of the target stack of the current
inferior. Same across a fork - the child inherits a copy of the
target stack of the parent. While the target stacks are copied, the
targets themselves are not. Instead, target_ops is made a
refcounted_object, which means that target_ops instances are
refcounted, which each inferior counting for a reference.
What if you want to create an inferior and connect it to some _other_
target? For that, this commit introduces a new "add-inferior
-no-connection" option that makes the new inferior not share the
current inferior's target. So you could do:
(gdb) target extended-remote :9999
Remote debugging using :9999
...
(gdb) add-inferior -no-connection
[New inferior 2]
Added inferior 2
(gdb) inferior 2
[Switching to inferior 2 [<null>] (<noexec>)]
(gdb) info inferiors
Num Description Executable
1 process 18401 target:/home/pedro/tmp/main
* 2 <null>
(gdb) tar extended-remote :10000
Remote debugging using :10000
...
(gdb) info inferiors
Num Description Executable
1 process 18401 target:/home/pedro/tmp/main
* 2 process 18450 target:/home/pedro/tmp/main
(gdb)
A following patch will extended "info inferiors" to include a column
indicating which connection an inferior is bound to, along with a
couple other UI tweaks.
Other than that, debugging is the same as before. Users interact with
inferiors and threads as before. The only difference is that
inferiors may be bound to processes running in different machines.
That's pretty much all there is to it in terms of noticeable UI
changes.
On to implementation.
Since we can be connected to different systems at the same time, a
ptid_t is no longer a unique identifier. Instead a thread can be
identified by a pair of ptid_t and 'process_stratum_target *', the
later being the instance of the process_stratum target that owns the
process/thread. Note that process_stratum_target inherits from
target_ops, and all process_stratum targets inherit from
process_stratum_target. In earlier patches, many places in gdb were
converted to refer to threads by thread_info pointer instead of
ptid_t, but there are still places in gdb where we start with a
pid/tid and need to find the corresponding inferior or thread_info
objects. So you'll see in the patch many places adding a
process_stratum_target parameter to functions that used to take only a
ptid_t.
Since each inferior has its own target stack now, we can always find
the process_stratum target for an inferior. That is done via a
inf->process_target() convenience method.
Since each inferior has its own target stack, we need to handle the
"beneath" calls when servicing target calls. The solution I settled
with is just to make sure to switch the current inferior to the
inferior you want before making a target call. Not relying on global
context is just not feasible in current GDB. Fortunately, there
aren't that many places that need to do that, because generally most
code that calls target methods already has the current context
pointing to the right inferior/thread. Note, to emphasize -- there's
no method to "switch to this target stack". Instead, you switch the
current inferior, and that implicitly switches the target stack.
In some spots, we need to iterate over all inferiors so that we reach
all target stacks.
Native targets are still singletons. There's always only a single
instance of such targets.
Remote targets however, we'll have one instance per remote connection.
The exec target is still a singleton. There's only one instance. I
did not see the point of instanciating more than one exec_target
object.
After vfork, we need to make sure to push the exec target on the new
inferior. See exec_on_vfork.
For type safety, functions that need a {target, ptid} pair to identify
a thread, take a process_stratum_target pointer for target parameter
instead of target_ops *. Some shared code in gdb/nat/ also need to
gain a target pointer parameter. This poses an issue, since gdbserver
doesn't have process_stratum_target, only target_ops. To fix this,
this commit renames gdbserver's target_ops to process_stratum_target.
I think this makes sense. There's no concept of target stack in
gdbserver, and gdbserver's target_ops really implements a
process_stratum-like target.
The thread and inferior iterator functions also gain
process_stratum_target parameters. These are used to be able to
iterate over threads and inferiors of a given target. Following usual
conventions, if the target pointer is null, then we iterate over
threads and inferiors of all targets.
I tried converting "add-inferior" to the gdb::option framework, as a
preparatory patch, but that stumbled on the fact that gdb::option does
not support file options yet, for "add-inferior -exec". I have a WIP
patchset that adds that, but it's not a trivial patch, mainly due to
need to integrate readline's filename completion, so I deferred that
to some other time.
In infrun.c/infcmd.c, the main change is that we need to poll events
out of all targets. See do_target_wait. Right after collecting an
event, we switch the current inferior to an inferior bound to the
target that reported the event, so that target methods can be used
while handling the event. This makes most of the code transparent to
multi-targets. See fetch_inferior_event.
infrun.c:stop_all_threads is interesting -- in this function we need
to stop all threads of all targets. What the function does is send an
asynchronous stop request to all threads, and then synchronously waits
for events, with target_wait, rinse repeat, until all it finds are
stopped threads. Now that we have multiple targets, it's not
efficient to synchronously block in target_wait waiting for events out
of one target. Instead, we implement a mini event loop, with
interruptible_select, select'ing on one file descriptor per target.
For this to work, we need to be able to ask the target for a waitable
file descriptor. Such file descriptors already exist, they are the
descriptors registered in the main event loop with add_file_handler,
inside the target_async implementations. This commit adds a new
target_async_wait_fd target method that just returns the file
descriptor in question. See wait_one / stop_all_threads in infrun.c.
The 'threads_executing' global is made a per-target variable. Since
it is only relevant to process_stratum_target targets, this is where
it is put, instead of in target_ops.
You'll notice that remote.c includes some FIXME notes. These refer to
the fact that the global arrays that hold data for the remote packets
supported are still globals. For example, if we connect to two
different servers/stubs, then each might support different remote
protocol features. They might even be different architectures, like
e.g., one ARM baremetal stub, and a x86 gdbserver, to debug a
host/controller scenario as a single program. That isn't going to
work correctly today, because of said globals. I'm leaving fixing
that for another pass, since it does not appear to be trivial, and I'd
rather land the base work first. It's already useful to be able to
debug multiple instances of the same server (e.g., a distributed
cluster, where you have full control over the servers installed), so I
think as is it's already reasonable incremental progress.
Current limitations:
- You can only resume more that one target at the same time if all
targets support asynchronous debugging, and support non-stop mode.
It should be possible to support mixed all-stop + non-stop
backends, but that is left for another time. This means that
currently in order to do multi-target with gdbserver you need to
issue "maint set target-non-stop on". I would like to make that
mode be the default, but we're not there yet. Note that I'm
talking about how the target backend works, only. User-visible
all-stop mode works just fine.
- As explained above, connecting to different remote servers at the
same time is likely to produce bad results if they don't support the
exact set of RSP features.
FreeBSD updates courtesy of John Baldwin.
gdb/ChangeLog:
2020-01-10 Pedro Alves <palves@redhat.com>
John Baldwin <jhb@FreeBSD.org>
* aarch64-linux-nat.c
(aarch64_linux_nat_target::thread_architecture): Adjust.
* ada-tasks.c (print_ada_task_info): Adjust find_thread_ptid call.
(task_command_1): Likewise.
* aix-thread.c (sync_threadlists, aix_thread_target::resume)
(aix_thread_target::wait, aix_thread_target::fetch_registers)
(aix_thread_target::store_registers)
(aix_thread_target::thread_alive): Adjust.
* amd64-fbsd-tdep.c: Include "inferior.h".
(amd64fbsd_get_thread_local_address): Pass down target.
* amd64-linux-nat.c (ps_get_thread_area): Use ps_prochandle
thread's gdbarch instead of target_gdbarch.
* break-catch-sig.c (signal_catchpoint_print_it): Adjust call to
get_last_target_status.
* break-catch-syscall.c (print_it_catch_syscall): Likewise.
* breakpoint.c (breakpoints_should_be_inserted_now): Consider all
inferiors.
(update_inserted_breakpoint_locations): Skip if inferiors with no
execution.
(update_global_location_list): When handling moribund locations,
find representative inferior for location's pspace, and use thread
count of its process_stratum target.
* bsd-kvm.c (bsd_kvm_target_open): Pass target down.
* bsd-uthread.c (bsd_uthread_target::wait): Use
as_process_stratum_target and adjust thread_change_ptid and
add_thread calls.
(bsd_uthread_target::update_thread_list): Use
as_process_stratum_target and adjust find_thread_ptid,
thread_change_ptid and add_thread calls.
* btrace.c (maint_btrace_packet_history_cmd): Adjust
find_thread_ptid call.
* corelow.c (add_to_thread_list): Adjust add_thread call.
(core_target_open): Adjust add_thread_silent and thread_count
calls.
(core_target::pid_to_str): Adjust find_inferior_ptid call.
* ctf.c (ctf_target_open): Adjust add_thread_silent call.
* event-top.c (async_disconnect): Pop targets from all inferiors.
* exec.c (add_target_sections): Push exec target on all inferiors
sharing the program space.
(remove_target_sections): Remove the exec target from all
inferiors sharing the program space.
(exec_on_vfork): New.
* exec.h (exec_on_vfork): Declare.
* fbsd-nat.c (fbsd_add_threads): Add fbsd_nat_target parameter.
Pass it down.
(fbsd_nat_target::update_thread_list): Adjust.
(fbsd_nat_target::resume): Adjust.
(fbsd_handle_debug_trap): Add fbsd_nat_target parameter. Pass it
down.
(fbsd_nat_target::wait, fbsd_nat_target::post_attach): Adjust.
* fbsd-tdep.c (fbsd_corefile_thread): Adjust
get_thread_arch_regcache call.
* fork-child.c (gdb_startup_inferior): Pass target down to
startup_inferior and set_executing.
* gdbthread.h (struct process_stratum_target): Forward declare.
(add_thread, add_thread_silent, add_thread_with_info)
(in_thread_list): Add process_stratum_target parameter.
(find_thread_ptid(inferior*, ptid_t)): New overload.
(find_thread_ptid, thread_change_ptid): Add process_stratum_target
parameter.
(all_threads()): Delete overload.
(all_threads, all_non_exited_threads): Add process_stratum_target
parameter.
(all_threads_safe): Use brace initialization.
(thread_count): Add process_stratum_target parameter.
(set_resumed, set_running, set_stop_requested, set_executing)
(threads_are_executing, finish_thread_state): Add
process_stratum_target parameter.
(switch_to_thread): Use is_current_thread.
* i386-fbsd-tdep.c: Include "inferior.h".
(i386fbsd_get_thread_local_address): Pass down target.
* i386-linux-nat.c (i386_linux_nat_target::low_resume): Adjust.
* inf-child.c (inf_child_target::maybe_unpush_target): Remove
have_inferiors check.
* inf-ptrace.c (inf_ptrace_target::create_inferior)
(inf_ptrace_target::attach): Adjust.
* infcall.c (run_inferior_call): Adjust.
* infcmd.c (run_command_1): Pass target to
scoped_finish_thread_state.
(proceed_thread_callback): Skip inferiors with no execution.
(continue_command): Rename 'all_threads' local to avoid hiding
'all_threads' function. Adjust get_last_target_status call.
(prepare_one_step): Adjust set_running call.
(signal_command): Use user_visible_resume_target. Compare thread
pointers instead of inferior_ptid.
(info_program_command): Adjust to pass down target.
(attach_command): Mark target's 'thread_executing' flag.
(stop_current_target_threads_ns): New, factored out from ...
(interrupt_target_1): ... this. Switch inferior before making
target calls.
* inferior-iter.h
(struct all_inferiors_iterator, struct all_inferiors_range)
(struct all_inferiors_safe_range)
(struct all_non_exited_inferiors_range): Filter on
process_stratum_target too. Remove explicit.
* inferior.c (inferior::inferior): Push dummy target on target
stack.
(find_inferior_pid, find_inferior_ptid, number_of_live_inferiors):
Add process_stratum_target parameter, and pass it down.
(have_live_inferiors): Adjust.
(switch_to_inferior_and_push_target): New.
(add_inferior_command, clone_inferior_command): Handle
"-no-connection" parameter. Use
switch_to_inferior_and_push_target.
(_initialize_inferior): Mention "-no-connection" option in
the help of "add-inferior" and "clone-inferior" commands.
* inferior.h: Include "process-stratum-target.h".
(interrupt_target_1): Use bool.
(struct inferior) <push_target, unpush_target, target_is_pushed,
find_target_beneath, top_target, process_target, target_at,
m_stack>: New.
(discard_all_inferiors): Delete.
(find_inferior_pid, find_inferior_ptid, number_of_live_inferiors)
(all_inferiors, all_non_exited_inferiors): Add
process_stratum_target parameter.
* infrun.c: Include "gdb_select.h" and <unordered_map>.
(target_last_proc_target): New global.
(follow_fork_inferior): Push target on new inferior. Pass target
to add_thread_silent. Call exec_on_vfork. Handle target's
reference count.
(follow_fork): Adjust get_last_target_status call. Also consider
target.
(follow_exec): Push target on new inferior.
(struct execution_control_state) <target>: New field.
(user_visible_resume_target): New.
(do_target_resume): Call target_async.
(resume_1): Set target's threads_executing flag. Consider resume
target.
(commit_resume_all_targets): New.
(proceed): Also consider resume target. Skip threads of inferiors
with no execution. Commit resumtion in all targets.
(start_remote): Pass current inferior to wait_for_inferior.
(infrun_thread_stop_requested): Consider target as well. Pass
thread_info pointer to clear_inline_frame_state instead of ptid.
(infrun_thread_thread_exit): Consider target as well.
(random_pending_event_thread): New inferior parameter. Use it.
(do_target_wait): Rename to ...
(do_target_wait_1): ... this. Add inferior parameter, and pass it
down.
(threads_are_resumed_pending_p, do_target_wait): New.
(prepare_for_detach): Adjust calls.
(wait_for_inferior): New inferior parameter. Handle it. Use
do_target_wait_1 instead of do_target_wait.
(fetch_inferior_event): Adjust. Switch to representative
inferior. Pass target down.
(set_last_target_status): Add process_stratum_target parameter.
Save target in global.
(get_last_target_status): Add process_stratum_target parameter and
handle it.
(nullify_last_target_wait_ptid): Clear 'target_last_proc_target'.
(context_switch): Check inferior_ptid == null_ptid before calling
inferior_thread().
(get_inferior_stop_soon): Pass down target.
(wait_one): Rename to ...
(poll_one_curr_target): ... this.
(struct wait_one_event): New.
(wait_one): New.
(stop_all_threads): Adjust.
(handle_no_resumed, handle_inferior_event): Adjust to consider the
event's target.
(switch_back_to_stepped_thread): Also consider target.
(print_stop_event): Update.
(normal_stop): Update. Also consider the resume target.
* infrun.h (wait_for_inferior): Remove declaration.
(user_visible_resume_target): New declaration.
(get_last_target_status, set_last_target_status): New
process_stratum_target parameter.
* inline-frame.c (clear_inline_frame_state(ptid_t)): Add
process_stratum_target parameter, and use it.
(clear_inline_frame_state (thread_info*)): New.
* inline-frame.c (clear_inline_frame_state(ptid_t)): Add
process_stratum_target parameter.
(clear_inline_frame_state (thread_info*)): Declare.
* linux-fork.c (delete_checkpoint_command): Pass target down to
find_thread_ptid.
(checkpoint_command): Adjust.
* linux-nat.c (linux_nat_target::follow_fork): Switch to thread
instead of just tweaking inferior_ptid.
(linux_nat_switch_fork): Pass target down to thread_change_ptid.
(exit_lwp): Pass target down to find_thread_ptid.
(attach_proc_task_lwp_callback): Pass target down to
add_thread/set_running/set_executing.
(linux_nat_target::attach): Pass target down to
thread_change_ptid.
(get_detach_signal): Pass target down to find_thread_ptid.
Consider last target status's target.
(linux_resume_one_lwp_throw, resume_lwp)
(linux_handle_syscall_trap, linux_handle_extended_wait, wait_lwp)
(stop_wait_callback, save_stop_reason, linux_nat_filter_event)
(linux_nat_wait_1, resume_stopped_resumed_lwps): Pass target down.
(linux_nat_target::async_wait_fd): New.
(linux_nat_stop_lwp, linux_nat_target::thread_address_space): Pass
target down.
* linux-nat.h (linux_nat_target::async_wait_fd): Declare.
* linux-tdep.c (get_thread_arch_regcache): Pass target down.
* linux-thread-db.c (struct thread_db_info::process_target): New
field.
(add_thread_db_info): Save target.
(get_thread_db_info): New process_stratum_target parameter. Also
match target.
(delete_thread_db_info): New process_stratum_target parameter.
Also match target.
(thread_from_lwp): Adjust to pass down target.
(thread_db_notice_clone): Pass down target.
(check_thread_db_callback): Pass down target.
(try_thread_db_load_1): Always push the thread_db target.
(try_thread_db_load, record_thread): Pass target down.
(thread_db_target::detach): Pass target down. Always unpush the
thread_db target.
(thread_db_target::wait, thread_db_target::mourn_inferior): Pass
target down. Always unpush the thread_db target.
(find_new_threads_callback, thread_db_find_new_threads_2)
(thread_db_target::update_thread_list): Pass target down.
(thread_db_target::pid_to_str): Pass current inferior down.
(thread_db_target::get_thread_local_address): Pass target down.
(thread_db_target::resume, maintenance_check_libthread_db): Pass
target down.
* nto-procfs.c (nto_procfs_target::update_thread_list): Adjust.
* procfs.c (procfs_target::procfs_init_inferior): Declare.
(proc_set_current_signal, do_attach, procfs_target::wait): Adjust.
(procfs_init_inferior): Rename to ...
(procfs_target::procfs_init_inferior): ... this and adjust.
(procfs_target::create_inferior, procfs_notice_thread)
(procfs_do_thread_registers): Adjust.
* ppc-fbsd-tdep.c: Include "inferior.h".
(ppcfbsd_get_thread_local_address): Pass down target.
* proc-service.c (ps_xfer_memory): Switch current inferior and
program space as well.
(get_ps_regcache): Pass target down.
* process-stratum-target.c
(process_stratum_target::thread_address_space)
(process_stratum_target::thread_architecture): Pass target down.
* process-stratum-target.h
(process_stratum_target::threads_executing): New field.
(as_process_stratum_target): New.
* ravenscar-thread.c
(ravenscar_thread_target::update_inferior_ptid): Pass target down.
(ravenscar_thread_target::wait, ravenscar_add_thread): Pass target
down.
* record-btrace.c (record_btrace_target::info_record): Adjust.
(record_btrace_target::record_method)
(record_btrace_target::record_is_replaying)
(record_btrace_target::fetch_registers)
(get_thread_current_frame_id, record_btrace_target::resume)
(record_btrace_target::wait, record_btrace_target::stop): Pass
target down.
* record-full.c (record_full_wait_1): Switch to event thread.
Pass target down.
* regcache.c (regcache::regcache)
(get_thread_arch_aspace_regcache, get_thread_arch_regcache): Add
process_stratum_target parameter and handle it.
(current_thread_target): New global.
(get_thread_regcache): Add process_stratum_target parameter and
handle it. Switch inferior before calling target method.
(get_thread_regcache): Pass target down.
(get_thread_regcache_for_ptid): Pass target down.
(registers_changed_ptid): Add process_stratum_target parameter and
handle it.
(registers_changed_thread, registers_changed): Pass target down.
(test_get_thread_arch_aspace_regcache): New.
(current_regcache_test): Define a couple local test_target_ops
instances and use them for testing.
(readwrite_regcache): Pass process_stratum_target parameter.
(cooked_read_test, cooked_write_test): Pass mock_target down.
* regcache.h (get_thread_regcache, get_thread_arch_regcache)
(get_thread_arch_aspace_regcache): Add process_stratum_target
parameter.
(regcache::target): New method.
(regcache::regcache, regcache::get_thread_arch_aspace_regcache)
(regcache::registers_changed_ptid): Add process_stratum_target
parameter.
(regcache::m_target): New field.
(registers_changed_ptid): Add process_stratum_target parameter.
* remote.c (remote_state::supports_vCont_probed): New field.
(remote_target::async_wait_fd): New method.
(remote_unpush_and_throw): Add remote_target parameter.
(get_current_remote_target): Adjust.
(remote_target::remote_add_inferior): Push target.
(remote_target::remote_add_thread)
(remote_target::remote_notice_new_inferior)
(get_remote_thread_info): Pass target down.
(remote_target::update_thread_list): Skip threads of inferiors
bound to other targets. (remote_target::close): Don't discard
inferiors. (remote_target::add_current_inferior_and_thread)
(remote_target::process_initial_stop_replies)
(remote_target::start_remote)
(remote_target::remote_serial_quit_handler): Pass down target.
(remote_target::remote_unpush_target): New remote_target
parameter. Unpush the target from all inferiors.
(remote_target::remote_unpush_and_throw): New remote_target
parameter. Pass it down.
(remote_target::open_1): Check whether the current inferior has
execution instead of checking whether any inferior is live. Pass
target down.
(remote_target::remote_detach_1): Pass down target. Use
remote_unpush_target.
(extended_remote_target::attach): Pass down target.
(remote_target::remote_vcont_probe): Set supports_vCont_probed.
(remote_target::append_resumption): Pass down target.
(remote_target::append_pending_thread_resumptions)
(remote_target::remote_resume_with_hc, remote_target::resume)
(remote_target::commit_resume): Pass down target.
(remote_target::remote_stop_ns): Check supports_vCont_probed.
(remote_target::interrupt_query)
(remote_target::remove_new_fork_children)
(remote_target::check_pending_events_prevent_wildcard_vcont)
(remote_target::remote_parse_stop_reply)
(remote_target::process_stop_reply): Pass down target.
(first_remote_resumed_thread): New remote_target parameter. Pass
it down.
(remote_target::wait_as): Pass down target.
(unpush_and_perror): New remote_target parameter. Pass it down.
(remote_target::readchar, remote_target::remote_serial_write)
(remote_target::getpkt_or_notif_sane_1)
(remote_target::kill_new_fork_children, remote_target::kill): Pass
down target.
(remote_target::mourn_inferior): Pass down target. Use
remote_unpush_target.
(remote_target::core_of_thread)
(remote_target::remote_btrace_maybe_reopen): Pass down target.
(remote_target::pid_to_exec_file)
(remote_target::thread_handle_to_thread_info): Pass down target.
(remote_target::async_wait_fd): New.
* riscv-fbsd-tdep.c: Include "inferior.h".
(riscv_fbsd_get_thread_local_address): Pass down target.
* sol2-tdep.c (sol2_core_pid_to_str): Pass down target.
* sol-thread.c (sol_thread_target::wait, ps_lgetregs, ps_lsetregs)
(ps_lgetfpregs, ps_lsetfpregs, sol_update_thread_list_callback):
Adjust.
* solib-spu.c (spu_skip_standalone_loader): Pass down target.
* solib-svr4.c (enable_break): Pass down target.
* spu-multiarch.c (parse_spufs_run): Pass down target.
* spu-tdep.c (spu2ppu_sniffer): Pass down target.
* target-delegates.c: Regenerate.
* target.c (g_target_stack): Delete.
(current_top_target): Return the current inferior's top target.
(target_has_execution_1): Refer to the passed-in inferior's top
target.
(target_supports_terminal_ours): Check whether the initial
inferior was already created.
(decref_target): New.
(target_stack::push): Incref/decref the target.
(push_target, push_target, unpush_target): Adjust.
(target_stack::unpush): Defref target.
(target_is_pushed): Return bool. Adjust to refer to the current
inferior's target stack.
(dispose_inferior): Delete, and inline parts ...
(target_preopen): ... here. Only dispose of the current inferior.
(target_detach): Hold strong target reference while detaching.
Pass target down.
(target_thread_name): Add assertion.
(target_resume): Pass down target.
(target_ops::beneath, find_target_at): Adjust to refer to the
current inferior's target stack.
(get_dummy_target): New.
(target_pass_ctrlc): Pass the Ctrl-C to the first inferior that
has a thread running.
(initialize_targets): Rename to ...
(_initialize_target): ... this.
* target.h: Include "gdbsupport/refcounted-object.h".
(struct target_ops): Inherit refcounted_object.
(target_ops::shortname, target_ops::longname): Make const.
(target_ops::async_wait_fd): New method.
(decref_target): Declare.
(struct target_ops_ref_policy): New.
(target_ops_ref): New typedef.
(get_dummy_target): Declare function.
(target_is_pushed): Return bool.
* thread-iter.c (all_matching_threads_iterator::m_inf_matches)
(all_matching_threads_iterator::all_matching_threads_iterator):
Handle filter target.
* thread-iter.h (struct all_matching_threads_iterator, struct
all_matching_threads_range, class all_non_exited_threads_range):
Filter by target too. Remove explicit.
* thread.c (threads_executing): Delete.
(inferior_thread): Pass down current inferior.
(clear_thread_inferior_resources): Pass down thread pointer
instead of ptid_t.
(add_thread_silent, add_thread_with_info, add_thread): Add
process_stratum_target parameter. Use it for thread and inferior
searches.
(is_current_thread): New.
(thread_info::deletable): Use it.
(find_thread_ptid, thread_count, in_thread_list)
(thread_change_ptid, set_resumed, set_running): New
process_stratum_target parameter. Pass it down.
(set_executing): New process_stratum_target parameter. Pass it
down. Adjust reference to 'threads_executing'.
(threads_are_executing): New process_stratum_target parameter.
Adjust reference to 'threads_executing'.
(set_stop_requested, finish_thread_state): New
process_stratum_target parameter. Pass it down.
(switch_to_thread): Also match inferior.
(switch_to_thread): New process_stratum_target parameter. Pass it
down.
(update_threads_executing): Reimplement.
* top.c (quit_force): Pop targets from all inferior.
(gdb_init): Don't call initialize_targets.
* windows-nat.c (windows_nat_target) <get_windows_debug_event>:
Declare.
(windows_add_thread, windows_delete_thread): Adjust.
(get_windows_debug_event): Rename to ...
(windows_nat_target::get_windows_debug_event): ... this. Adjust.
* tracefile-tfile.c (tfile_target_open): Pass down target.
* gdbsupport/common-gdbthread.h (struct process_stratum_target):
Forward declare.
(switch_to_thread): Add process_stratum_target parameter.
* mi/mi-interp.c (mi_on_resume_1): Add process_stratum_target
parameter. Use it.
(mi_on_resume): Pass target down.
* nat/fork-inferior.c (startup_inferior): Add
process_stratum_target parameter. Pass it down.
* nat/fork-inferior.h (startup_inferior): Add
process_stratum_target parameter.
* python/py-threadevent.c (py_get_event_thread): Pass target down.
gdb/gdbserver/ChangeLog:
2020-01-10 Pedro Alves <palves@redhat.com>
* fork-child.c (post_fork_inferior): Pass target down to
startup_inferior.
* inferiors.c (switch_to_thread): Add process_stratum_target
parameter.
* lynx-low.c (lynx_target_ops): Now a process_stratum_target.
* nto-low.c (nto_target_ops): Now a process_stratum_target.
* linux-low.c (linux_target_ops): Now a process_stratum_target.
* remote-utils.c (prepare_resume_reply): Pass the target to
switch_to_thread.
* target.c (the_target): Now a process_stratum_target.
(done_accessing_memory): Pass the target to switch_to_thread.
(set_target_ops): Ajust to use process_stratum_target.
* target.h (struct target_ops): Rename to ...
(struct process_stratum_target): ... this.
(the_target, set_target_ops): Adjust.
(prepare_to_access_memory): Adjust comment.
* win32-low.c (child_xfer_memory): Adjust to use
process_stratum_target.
(win32_target_ops): Now a process_stratum_target.
1377 lines
36 KiB
C
1377 lines
36 KiB
C
/* MI Interpreter Definitions and Commands for GDB, the GNU debugger.
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Copyright (C) 2002-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "mi-interp.h"
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#include "interps.h"
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#include "event-top.h"
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#include "event-loop.h"
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#include "inferior.h"
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#include "infrun.h"
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#include "ui-out.h"
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#include "top.h"
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#include "mi-main.h"
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#include "mi-cmds.h"
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#include "mi-out.h"
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#include "mi-console.h"
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#include "mi-common.h"
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#include "observable.h"
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#include "gdbthread.h"
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#include "solist.h"
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#include "objfiles.h"
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#include "tracepoint.h"
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#include "cli-out.h"
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#include "thread-fsm.h"
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#include "cli/cli-interp.h"
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#include "gdbsupport/scope-exit.h"
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/* These are the interpreter setup, etc. functions for the MI
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interpreter. */
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static void mi_execute_command_wrapper (const char *cmd);
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static void mi_execute_command_input_handler
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(gdb::unique_xmalloc_ptr<char> &&cmd);
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/* These are hooks that we put in place while doing interpreter_exec
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so we can report interesting things that happened "behind the MI's
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back" in this command. */
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static int mi_interp_query_hook (const char *ctlstr, va_list ap)
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ATTRIBUTE_PRINTF (1, 0);
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static void mi_insert_notify_hooks (void);
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static void mi_remove_notify_hooks (void);
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static void mi_on_signal_received (enum gdb_signal siggnal);
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static void mi_on_end_stepping_range (void);
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static void mi_on_signal_exited (enum gdb_signal siggnal);
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static void mi_on_exited (int exitstatus);
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static void mi_on_normal_stop (struct bpstats *bs, int print_frame);
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static void mi_on_no_history (void);
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static void mi_new_thread (struct thread_info *t);
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static void mi_thread_exit (struct thread_info *t, int silent);
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static void mi_record_changed (struct inferior*, int, const char *,
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const char *);
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static void mi_inferior_added (struct inferior *inf);
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static void mi_inferior_appeared (struct inferior *inf);
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static void mi_inferior_exit (struct inferior *inf);
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static void mi_inferior_removed (struct inferior *inf);
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static void mi_on_resume (ptid_t ptid);
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static void mi_solib_loaded (struct so_list *solib);
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static void mi_solib_unloaded (struct so_list *solib);
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static void mi_about_to_proceed (void);
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static void mi_traceframe_changed (int tfnum, int tpnum);
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static void mi_tsv_created (const struct trace_state_variable *tsv);
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static void mi_tsv_deleted (const struct trace_state_variable *tsv);
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static void mi_tsv_modified (const struct trace_state_variable *tsv);
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static void mi_breakpoint_created (struct breakpoint *b);
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static void mi_breakpoint_deleted (struct breakpoint *b);
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static void mi_breakpoint_modified (struct breakpoint *b);
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static void mi_command_param_changed (const char *param, const char *value);
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static void mi_memory_changed (struct inferior *inf, CORE_ADDR memaddr,
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ssize_t len, const bfd_byte *myaddr);
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static void mi_on_sync_execution_done (void);
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static int report_initial_inferior (struct inferior *inf, void *closure);
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/* Display the MI prompt. */
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static void
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display_mi_prompt (struct mi_interp *mi)
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{
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struct ui *ui = current_ui;
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fputs_unfiltered ("(gdb) \n", mi->raw_stdout);
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gdb_flush (mi->raw_stdout);
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ui->prompt_state = PROMPTED;
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}
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/* Returns the INTERP's data cast as mi_interp if INTERP is an MI, and
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returns NULL otherwise. */
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static struct mi_interp *
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as_mi_interp (struct interp *interp)
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{
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return dynamic_cast<mi_interp *> (interp);
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}
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void
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mi_interp::init (bool top_level)
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{
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mi_interp *mi = this;
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/* Store the current output channel, so that we can create a console
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channel that encapsulates and prefixes all gdb_output-type bits
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coming from the rest of the debugger. */
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mi->raw_stdout = gdb_stdout;
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/* Create MI console channels, each with a different prefix so they
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can be distinguished. */
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mi->out = new mi_console_file (mi->raw_stdout, "~", '"');
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mi->err = new mi_console_file (mi->raw_stdout, "&", '"');
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mi->log = mi->err;
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mi->targ = new mi_console_file (mi->raw_stdout, "@", '"');
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mi->event_channel = new mi_console_file (mi->raw_stdout, "=", 0);
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mi->mi_uiout = mi_out_new (name ());
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gdb_assert (mi->mi_uiout != nullptr);
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mi->cli_uiout = cli_out_new (mi->out);
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if (top_level)
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{
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/* The initial inferior is created before this function is
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called, so we need to report it explicitly. Use iteration in
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case future version of GDB creates more than one inferior
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up-front. */
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iterate_over_inferiors (report_initial_inferior, mi);
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}
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}
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void
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mi_interp::resume ()
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{
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struct mi_interp *mi = this;
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struct ui *ui = current_ui;
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/* As per hack note in mi_interpreter_init, swap in the output
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channels... */
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gdb_setup_readline (0);
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ui->call_readline = gdb_readline_no_editing_callback;
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ui->input_handler = mi_execute_command_input_handler;
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gdb_stdout = mi->out;
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/* Route error and log output through the MI. */
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gdb_stderr = mi->err;
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gdb_stdlog = mi->log;
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/* Route target output through the MI. */
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gdb_stdtarg = mi->targ;
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/* Route target error through the MI as well. */
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gdb_stdtargerr = mi->targ;
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/* Replace all the hooks that we know about. There really needs to
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be a better way of doing this... */
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clear_interpreter_hooks ();
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deprecated_show_load_progress = mi_load_progress;
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}
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void
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mi_interp::suspend ()
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{
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gdb_disable_readline ();
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}
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gdb_exception
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mi_interp::exec (const char *command)
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{
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mi_execute_command_wrapper (command);
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return gdb_exception ();
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}
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void
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mi_cmd_interpreter_exec (const char *command, char **argv, int argc)
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{
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struct interp *interp_to_use;
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int i;
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if (argc < 2)
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error (_("-interpreter-exec: "
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"Usage: -interpreter-exec interp command"));
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interp_to_use = interp_lookup (current_ui, argv[0]);
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if (interp_to_use == NULL)
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error (_("-interpreter-exec: could not find interpreter \"%s\""),
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argv[0]);
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/* Note that unlike the CLI version of this command, we don't
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actually set INTERP_TO_USE as the current interpreter, as we
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still want gdb_stdout, etc. to point at MI streams. */
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/* Insert the MI out hooks, making sure to also call the
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interpreter's hooks if it has any. */
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/* KRS: We shouldn't need this... Events should be installed and
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they should just ALWAYS fire something out down the MI
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channel. */
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mi_insert_notify_hooks ();
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/* Now run the code. */
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SCOPE_EXIT
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{
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mi_remove_notify_hooks ();
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};
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for (i = 1; i < argc; i++)
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{
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struct gdb_exception e = interp_exec (interp_to_use, argv[i]);
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if (e.reason < 0)
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error ("%s", e.what ());
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}
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}
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/* This inserts a number of hooks that are meant to produce
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async-notify ("=") MI messages while running commands in another
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interpreter using mi_interpreter_exec. The canonical use for this
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is to allow access to the gdb CLI interpreter from within the MI,
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while still producing MI style output when actions in the CLI
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command change GDB's state. */
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static void
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mi_insert_notify_hooks (void)
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{
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deprecated_query_hook = mi_interp_query_hook;
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}
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static void
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mi_remove_notify_hooks (void)
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{
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deprecated_query_hook = NULL;
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}
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static int
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mi_interp_query_hook (const char *ctlstr, va_list ap)
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{
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return 1;
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}
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static void
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mi_execute_command_wrapper (const char *cmd)
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{
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struct ui *ui = current_ui;
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mi_execute_command (cmd, ui->instream == ui->stdin_stream);
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}
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/* Observer for the synchronous_command_done notification. */
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static void
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mi_on_sync_execution_done (void)
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{
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struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
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if (mi == NULL)
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return;
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/* If MI is sync, then output the MI prompt now, indicating we're
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ready for further input. */
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if (!mi_async_p ())
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display_mi_prompt (mi);
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}
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/* mi_execute_command_wrapper wrapper suitable for INPUT_HANDLER. */
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static void
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mi_execute_command_input_handler (gdb::unique_xmalloc_ptr<char> &&cmd)
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{
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struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
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struct ui *ui = current_ui;
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ui->prompt_state = PROMPT_NEEDED;
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mi_execute_command_wrapper (cmd.get ());
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/* Print a prompt, indicating we're ready for further input, unless
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we just started a synchronous command. In that case, we're about
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to go back to the event loop and will output the prompt in the
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'synchronous_command_done' observer when the target next
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stops. */
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if (ui->prompt_state == PROMPT_NEEDED)
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display_mi_prompt (mi);
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}
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void
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mi_interp::pre_command_loop ()
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{
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struct mi_interp *mi = this;
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/* Turn off 8 bit strings in quoted output. Any character with the
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high bit set is printed using C's octal format. */
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sevenbit_strings = 1;
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/* Tell the world that we're alive. */
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display_mi_prompt (mi);
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}
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static void
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mi_new_thread (struct thread_info *t)
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{
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SWITCH_THRU_ALL_UIS ()
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{
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struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
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if (mi == NULL)
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continue;
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target_terminal::scoped_restore_terminal_state term_state;
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target_terminal::ours_for_output ();
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fprintf_unfiltered (mi->event_channel,
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"thread-created,id=\"%d\",group-id=\"i%d\"",
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t->global_num, t->inf->num);
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gdb_flush (mi->event_channel);
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}
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}
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static void
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mi_thread_exit (struct thread_info *t, int silent)
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{
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if (silent)
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return;
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SWITCH_THRU_ALL_UIS ()
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{
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struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
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if (mi == NULL)
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continue;
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target_terminal::scoped_restore_terminal_state term_state;
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target_terminal::ours_for_output ();
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fprintf_unfiltered (mi->event_channel,
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"thread-exited,id=\"%d\",group-id=\"i%d\"",
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t->global_num, t->inf->num);
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gdb_flush (mi->event_channel);
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}
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}
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/* Emit notification on changing the state of record. */
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static void
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mi_record_changed (struct inferior *inferior, int started, const char *method,
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const char *format)
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{
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SWITCH_THRU_ALL_UIS ()
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{
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struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
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if (mi == NULL)
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continue;
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target_terminal::scoped_restore_terminal_state term_state;
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target_terminal::ours_for_output ();
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if (started)
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{
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if (format != NULL)
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{
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fprintf_unfiltered (mi->event_channel,
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"record-started,thread-group=\"i%d\","
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"method=\"%s\",format=\"%s\"",
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inferior->num, method, format);
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}
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else
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{
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fprintf_unfiltered (mi->event_channel,
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"record-started,thread-group=\"i%d\","
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"method=\"%s\"",
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inferior->num, method);
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}
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}
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else
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{
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fprintf_unfiltered (mi->event_channel,
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"record-stopped,thread-group=\"i%d\"",
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inferior->num);
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}
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gdb_flush (mi->event_channel);
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}
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}
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static void
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mi_inferior_added (struct inferior *inf)
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{
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SWITCH_THRU_ALL_UIS ()
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{
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struct interp *interp;
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struct mi_interp *mi;
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/* We'll be called once for the initial inferior, before the top
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level interpreter is set. */
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interp = top_level_interpreter ();
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if (interp == NULL)
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continue;
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mi = as_mi_interp (interp);
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if (mi == NULL)
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continue;
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target_terminal::scoped_restore_terminal_state term_state;
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target_terminal::ours_for_output ();
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fprintf_unfiltered (mi->event_channel,
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"thread-group-added,id=\"i%d\"",
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inf->num);
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gdb_flush (mi->event_channel);
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}
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}
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|
static void
|
|
mi_inferior_appeared (struct inferior *inf)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"thread-group-started,id=\"i%d\",pid=\"%d\"",
|
|
inf->num, inf->pid);
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_inferior_exit (struct inferior *inf)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
if (inf->has_exit_code)
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"thread-group-exited,id=\"i%d\",exit-code=\"%s\"",
|
|
inf->num, int_string (inf->exit_code, 8, 0, 0, 1));
|
|
else
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"thread-group-exited,id=\"i%d\"", inf->num);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_inferior_removed (struct inferior *inf)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"thread-group-removed,id=\"i%d\"",
|
|
inf->num);
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Return the MI interpreter, if it is active -- either because it's
|
|
the top-level interpreter or the interpreter executing the current
|
|
command. Returns NULL if the MI interpreter is not being used. */
|
|
|
|
static struct mi_interp *
|
|
find_mi_interp (void)
|
|
{
|
|
struct mi_interp *mi;
|
|
|
|
mi = as_mi_interp (top_level_interpreter ());
|
|
if (mi != NULL)
|
|
return mi;
|
|
|
|
mi = as_mi_interp (command_interp ());
|
|
if (mi != NULL)
|
|
return mi;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Observers for several run control events that print why the
|
|
inferior has stopped to both the MI event channel and to the MI
|
|
console. If the MI interpreter is not active, print nothing. */
|
|
|
|
/* Observer for the signal_received notification. */
|
|
|
|
static void
|
|
mi_on_signal_received (enum gdb_signal siggnal)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = find_mi_interp ();
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
print_signal_received_reason (mi->mi_uiout, siggnal);
|
|
print_signal_received_reason (mi->cli_uiout, siggnal);
|
|
}
|
|
}
|
|
|
|
/* Observer for the end_stepping_range notification. */
|
|
|
|
static void
|
|
mi_on_end_stepping_range (void)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = find_mi_interp ();
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
print_end_stepping_range_reason (mi->mi_uiout);
|
|
print_end_stepping_range_reason (mi->cli_uiout);
|
|
}
|
|
}
|
|
|
|
/* Observer for the signal_exited notification. */
|
|
|
|
static void
|
|
mi_on_signal_exited (enum gdb_signal siggnal)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = find_mi_interp ();
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
print_signal_exited_reason (mi->mi_uiout, siggnal);
|
|
print_signal_exited_reason (mi->cli_uiout, siggnal);
|
|
}
|
|
}
|
|
|
|
/* Observer for the exited notification. */
|
|
|
|
static void
|
|
mi_on_exited (int exitstatus)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = find_mi_interp ();
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
print_exited_reason (mi->mi_uiout, exitstatus);
|
|
print_exited_reason (mi->cli_uiout, exitstatus);
|
|
}
|
|
}
|
|
|
|
/* Observer for the no_history notification. */
|
|
|
|
static void
|
|
mi_on_no_history (void)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = find_mi_interp ();
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
print_no_history_reason (mi->mi_uiout);
|
|
print_no_history_reason (mi->cli_uiout);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_on_normal_stop_1 (struct bpstats *bs, int print_frame)
|
|
{
|
|
/* Since this can be called when CLI command is executing,
|
|
using cli interpreter, be sure to use MI uiout for output,
|
|
not the current one. */
|
|
struct ui_out *mi_uiout = top_level_interpreter ()->interp_ui_out ();
|
|
struct mi_interp *mi = (struct mi_interp *) top_level_interpreter ();
|
|
|
|
if (print_frame)
|
|
{
|
|
struct thread_info *tp;
|
|
int core;
|
|
struct interp *console_interp;
|
|
|
|
tp = inferior_thread ();
|
|
|
|
if (tp->thread_fsm != NULL
|
|
&& tp->thread_fsm->finished_p ())
|
|
{
|
|
enum async_reply_reason reason;
|
|
|
|
reason = tp->thread_fsm->async_reply_reason ();
|
|
mi_uiout->field_string ("reason", async_reason_lookup (reason));
|
|
}
|
|
|
|
console_interp = interp_lookup (current_ui, INTERP_CONSOLE);
|
|
/* We only want to print the displays once, and we want it to
|
|
look just how it would on the console, so we use this to
|
|
decide whether the MI stop should include them. */
|
|
bool console_print = should_print_stop_to_console (console_interp, tp);
|
|
print_stop_event (mi_uiout, !console_print);
|
|
|
|
if (console_print)
|
|
print_stop_event (mi->cli_uiout);
|
|
|
|
mi_uiout->field_signed ("thread-id", tp->global_num);
|
|
if (non_stop)
|
|
{
|
|
ui_out_emit_list list_emitter (mi_uiout, "stopped-threads");
|
|
|
|
mi_uiout->field_signed (NULL, tp->global_num);
|
|
}
|
|
else
|
|
mi_uiout->field_string ("stopped-threads", "all");
|
|
|
|
core = target_core_of_thread (tp->ptid);
|
|
if (core != -1)
|
|
mi_uiout->field_signed ("core", core);
|
|
}
|
|
|
|
fputs_unfiltered ("*stopped", mi->raw_stdout);
|
|
mi_out_put (mi_uiout, mi->raw_stdout);
|
|
mi_out_rewind (mi_uiout);
|
|
mi_print_timing_maybe (mi->raw_stdout);
|
|
fputs_unfiltered ("\n", mi->raw_stdout);
|
|
gdb_flush (mi->raw_stdout);
|
|
}
|
|
|
|
static void
|
|
mi_on_normal_stop (struct bpstats *bs, int print_frame)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
if (as_mi_interp (top_level_interpreter ()) == NULL)
|
|
continue;
|
|
|
|
mi_on_normal_stop_1 (bs, print_frame);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_about_to_proceed (void)
|
|
{
|
|
/* Suppress output while calling an inferior function. */
|
|
|
|
if (inferior_ptid != null_ptid)
|
|
{
|
|
struct thread_info *tp = inferior_thread ();
|
|
|
|
if (tp->control.in_infcall)
|
|
return;
|
|
}
|
|
|
|
mi_proceeded = 1;
|
|
}
|
|
|
|
/* When the element is non-zero, no MI notifications will be emitted in
|
|
response to the corresponding observers. */
|
|
|
|
struct mi_suppress_notification mi_suppress_notification =
|
|
{
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
};
|
|
|
|
/* Emit notification on changing a traceframe. */
|
|
|
|
static void
|
|
mi_traceframe_changed (int tfnum, int tpnum)
|
|
{
|
|
if (mi_suppress_notification.traceframe)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
if (tfnum >= 0)
|
|
fprintf_unfiltered (mi->event_channel, "traceframe-changed,"
|
|
"num=\"%d\",tracepoint=\"%d\"\n",
|
|
tfnum, tpnum);
|
|
else
|
|
fprintf_unfiltered (mi->event_channel, "traceframe-changed,end");
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification on creating a trace state variable. */
|
|
|
|
static void
|
|
mi_tsv_created (const struct trace_state_variable *tsv)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel, "tsv-created,"
|
|
"name=\"%s\",initial=\"%s\"\n",
|
|
tsv->name.c_str (), plongest (tsv->initial_value));
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification on deleting a trace state variable. */
|
|
|
|
static void
|
|
mi_tsv_deleted (const struct trace_state_variable *tsv)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
if (tsv != NULL)
|
|
fprintf_unfiltered (mi->event_channel, "tsv-deleted,"
|
|
"name=\"%s\"\n", tsv->name.c_str ());
|
|
else
|
|
fprintf_unfiltered (mi->event_channel, "tsv-deleted\n");
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification on modifying a trace state variable. */
|
|
|
|
static void
|
|
mi_tsv_modified (const struct trace_state_variable *tsv)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
struct ui_out *mi_uiout;
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
mi_uiout = top_level_interpreter ()->interp_ui_out ();
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"tsv-modified");
|
|
|
|
mi_uiout->redirect (mi->event_channel);
|
|
|
|
mi_uiout->field_string ("name", tsv->name);
|
|
mi_uiout->field_string ("initial",
|
|
plongest (tsv->initial_value));
|
|
if (tsv->value_known)
|
|
mi_uiout->field_string ("current", plongest (tsv->value));
|
|
|
|
mi_uiout->redirect (NULL);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Print breakpoint BP on MI's event channel. */
|
|
|
|
static void
|
|
mi_print_breakpoint_for_event (struct mi_interp *mi, breakpoint *bp)
|
|
{
|
|
ui_out *mi_uiout = mi->interp_ui_out ();
|
|
|
|
/* We want the output from print_breakpoint to go to
|
|
mi->event_channel. One approach would be to just call
|
|
print_breakpoint, and then use mi_out_put to send the current
|
|
content of mi_uiout into mi->event_channel. However, that will
|
|
break if anything is output to mi_uiout prior to calling the
|
|
breakpoint_created notifications. So, we use
|
|
ui_out_redirect. */
|
|
mi_uiout->redirect (mi->event_channel);
|
|
|
|
try
|
|
{
|
|
scoped_restore restore_uiout
|
|
= make_scoped_restore (¤t_uiout, mi_uiout);
|
|
|
|
print_breakpoint (bp);
|
|
}
|
|
catch (const gdb_exception &ex)
|
|
{
|
|
exception_print (gdb_stderr, ex);
|
|
}
|
|
|
|
mi_uiout->redirect (NULL);
|
|
}
|
|
|
|
/* Emit notification about a created breakpoint. */
|
|
|
|
static void
|
|
mi_breakpoint_created (struct breakpoint *b)
|
|
{
|
|
if (mi_suppress_notification.breakpoint)
|
|
return;
|
|
|
|
if (b->number <= 0)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"breakpoint-created");
|
|
mi_print_breakpoint_for_event (mi, b);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification about deleted breakpoint. */
|
|
|
|
static void
|
|
mi_breakpoint_deleted (struct breakpoint *b)
|
|
{
|
|
if (mi_suppress_notification.breakpoint)
|
|
return;
|
|
|
|
if (b->number <= 0)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel, "breakpoint-deleted,id=\"%d\"",
|
|
b->number);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification about modified breakpoint. */
|
|
|
|
static void
|
|
mi_breakpoint_modified (struct breakpoint *b)
|
|
{
|
|
if (mi_suppress_notification.breakpoint)
|
|
return;
|
|
|
|
if (b->number <= 0)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"breakpoint-modified");
|
|
mi_print_breakpoint_for_event (mi, b);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_output_running (struct thread_info *thread)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
fprintf_unfiltered (mi->raw_stdout,
|
|
"*running,thread-id=\"%d\"\n",
|
|
thread->global_num);
|
|
}
|
|
}
|
|
|
|
/* Return true if there are multiple inferiors loaded. This is used
|
|
for backwards compatibility -- if there's only one inferior, output
|
|
"all", otherwise, output each resumed thread individually. */
|
|
|
|
static bool
|
|
multiple_inferiors_p ()
|
|
{
|
|
int count = 0;
|
|
for (inferior *inf ATTRIBUTE_UNUSED : all_non_exited_inferiors ())
|
|
{
|
|
count++;
|
|
if (count > 1)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static void
|
|
mi_on_resume_1 (struct mi_interp *mi,
|
|
process_stratum_target *targ, ptid_t ptid)
|
|
{
|
|
/* To cater for older frontends, emit ^running, but do it only once
|
|
per each command. We do it here, since at this point we know
|
|
that the target was successfully resumed, and in non-async mode,
|
|
we won't return back to MI interpreter code until the target
|
|
is done running, so delaying the output of "^running" until then
|
|
will make it impossible for frontend to know what's going on.
|
|
|
|
In future (MI3), we'll be outputting "^done" here. */
|
|
if (!running_result_record_printed && mi_proceeded)
|
|
{
|
|
fprintf_unfiltered (mi->raw_stdout, "%s^running\n",
|
|
current_token ? current_token : "");
|
|
}
|
|
|
|
/* Backwards compatibility. If doing a wildcard resume and there's
|
|
only one inferior, output "all", otherwise, output each resumed
|
|
thread individually. */
|
|
if ((ptid == minus_one_ptid || ptid.is_pid ())
|
|
&& !multiple_inferiors_p ())
|
|
fprintf_unfiltered (mi->raw_stdout, "*running,thread-id=\"all\"\n");
|
|
else
|
|
for (thread_info *tp : all_non_exited_threads (targ, ptid))
|
|
mi_output_running (tp);
|
|
|
|
if (!running_result_record_printed && mi_proceeded)
|
|
{
|
|
running_result_record_printed = 1;
|
|
/* This is what gdb used to do historically -- printing prompt
|
|
even if it cannot actually accept any input. This will be
|
|
surely removed for MI3, and may be removed even earlier. */
|
|
if (current_ui->prompt_state == PROMPT_BLOCKED)
|
|
fputs_unfiltered ("(gdb) \n", mi->raw_stdout);
|
|
}
|
|
gdb_flush (mi->raw_stdout);
|
|
}
|
|
|
|
static void
|
|
mi_on_resume (ptid_t ptid)
|
|
{
|
|
struct thread_info *tp = NULL;
|
|
|
|
process_stratum_target *target = current_inferior ()->process_target ();
|
|
if (ptid == minus_one_ptid || ptid.is_pid ())
|
|
tp = inferior_thread ();
|
|
else
|
|
tp = find_thread_ptid (target, ptid);
|
|
|
|
/* Suppress output while calling an inferior function. */
|
|
if (tp->control.in_infcall)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
mi_on_resume_1 (mi, target, ptid);
|
|
}
|
|
}
|
|
|
|
/* See mi-interp.h. */
|
|
|
|
void
|
|
mi_output_solib_attribs (ui_out *uiout, struct so_list *solib)
|
|
{
|
|
struct gdbarch *gdbarch = target_gdbarch ();
|
|
|
|
uiout->field_string ("id", solib->so_original_name);
|
|
uiout->field_string ("target-name", solib->so_original_name);
|
|
uiout->field_string ("host-name", solib->so_name);
|
|
uiout->field_signed ("symbols-loaded", solib->symbols_loaded);
|
|
if (!gdbarch_has_global_solist (target_gdbarch ()))
|
|
uiout->field_fmt ("thread-group", "i%d", current_inferior ()->num);
|
|
|
|
ui_out_emit_list list_emitter (uiout, "ranges");
|
|
ui_out_emit_tuple tuple_emitter (uiout, NULL);
|
|
if (solib->addr_high != 0)
|
|
{
|
|
uiout->field_core_addr ("from", gdbarch, solib->addr_low);
|
|
uiout->field_core_addr ("to", gdbarch, solib->addr_high);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_solib_loaded (struct so_list *solib)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
struct ui_out *uiout;
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
uiout = top_level_interpreter ()->interp_ui_out ();
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel, "library-loaded");
|
|
|
|
uiout->redirect (mi->event_channel);
|
|
|
|
mi_output_solib_attribs (uiout, solib);
|
|
|
|
uiout->redirect (NULL);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mi_solib_unloaded (struct so_list *solib)
|
|
{
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
struct ui_out *uiout;
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
uiout = top_level_interpreter ()->interp_ui_out ();
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel, "library-unloaded");
|
|
|
|
uiout->redirect (mi->event_channel);
|
|
|
|
uiout->field_string ("id", solib->so_original_name);
|
|
uiout->field_string ("target-name", solib->so_original_name);
|
|
uiout->field_string ("host-name", solib->so_name);
|
|
if (!gdbarch_has_global_solist (target_gdbarch ()))
|
|
{
|
|
uiout->field_fmt ("thread-group", "i%d", current_inferior ()->num);
|
|
}
|
|
|
|
uiout->redirect (NULL);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification about the command parameter change. */
|
|
|
|
static void
|
|
mi_command_param_changed (const char *param, const char *value)
|
|
{
|
|
if (mi_suppress_notification.cmd_param_changed)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
struct ui_out *mi_uiout;
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
mi_uiout = top_level_interpreter ()->interp_ui_out ();
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel, "cmd-param-changed");
|
|
|
|
mi_uiout->redirect (mi->event_channel);
|
|
|
|
mi_uiout->field_string ("param", param);
|
|
mi_uiout->field_string ("value", value);
|
|
|
|
mi_uiout->redirect (NULL);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit notification about the target memory change. */
|
|
|
|
static void
|
|
mi_memory_changed (struct inferior *inferior, CORE_ADDR memaddr,
|
|
ssize_t len, const bfd_byte *myaddr)
|
|
{
|
|
if (mi_suppress_notification.memory)
|
|
return;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
struct ui_out *mi_uiout;
|
|
struct obj_section *sec;
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
mi_uiout = top_level_interpreter ()->interp_ui_out ();
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel, "memory-changed");
|
|
|
|
mi_uiout->redirect (mi->event_channel);
|
|
|
|
mi_uiout->field_fmt ("thread-group", "i%d", inferior->num);
|
|
mi_uiout->field_core_addr ("addr", target_gdbarch (), memaddr);
|
|
mi_uiout->field_string ("len", hex_string (len));
|
|
|
|
/* Append 'type=code' into notification if MEMADDR falls in the range of
|
|
sections contain code. */
|
|
sec = find_pc_section (memaddr);
|
|
if (sec != NULL && sec->objfile != NULL)
|
|
{
|
|
flagword flags = bfd_section_flags (sec->the_bfd_section);
|
|
|
|
if (flags & SEC_CODE)
|
|
mi_uiout->field_string ("type", "code");
|
|
}
|
|
|
|
mi_uiout->redirect (NULL);
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
/* Emit an event when the selection context (inferior, thread, frame)
|
|
changed. */
|
|
|
|
static void
|
|
mi_user_selected_context_changed (user_selected_what selection)
|
|
{
|
|
struct thread_info *tp;
|
|
|
|
/* Don't send an event if we're responding to an MI command. */
|
|
if (mi_suppress_notification.user_selected_context)
|
|
return;
|
|
|
|
if (inferior_ptid != null_ptid)
|
|
tp = inferior_thread ();
|
|
else
|
|
tp = NULL;
|
|
|
|
SWITCH_THRU_ALL_UIS ()
|
|
{
|
|
struct mi_interp *mi = as_mi_interp (top_level_interpreter ());
|
|
struct ui_out *mi_uiout;
|
|
|
|
if (mi == NULL)
|
|
continue;
|
|
|
|
mi_uiout = top_level_interpreter ()->interp_ui_out ();
|
|
|
|
mi_uiout->redirect (mi->event_channel);
|
|
ui_out_redirect_pop redirect_popper (mi_uiout);
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
if (selection & USER_SELECTED_INFERIOR)
|
|
print_selected_inferior (mi->cli_uiout);
|
|
|
|
if (tp != NULL
|
|
&& (selection & (USER_SELECTED_THREAD | USER_SELECTED_FRAME)))
|
|
{
|
|
print_selected_thread_frame (mi->cli_uiout, selection);
|
|
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"thread-selected,id=\"%d\"",
|
|
tp->global_num);
|
|
|
|
if (tp->state != THREAD_RUNNING)
|
|
{
|
|
if (has_stack_frames ())
|
|
print_stack_frame_to_uiout (mi_uiout, get_selected_frame (NULL),
|
|
1, SRC_AND_LOC, 1);
|
|
}
|
|
}
|
|
|
|
gdb_flush (mi->event_channel);
|
|
}
|
|
}
|
|
|
|
static int
|
|
report_initial_inferior (struct inferior *inf, void *closure)
|
|
{
|
|
/* This function is called from mi_interpreter_init, and since
|
|
mi_inferior_added assumes that inferior is fully initialized
|
|
and top_level_interpreter_data is set, we cannot call
|
|
it here. */
|
|
struct mi_interp *mi = (struct mi_interp *) closure;
|
|
|
|
target_terminal::scoped_restore_terminal_state term_state;
|
|
target_terminal::ours_for_output ();
|
|
|
|
fprintf_unfiltered (mi->event_channel,
|
|
"thread-group-added,id=\"i%d\"",
|
|
inf->num);
|
|
gdb_flush (mi->event_channel);
|
|
|
|
return 0;
|
|
}
|
|
|
|
ui_out *
|
|
mi_interp::interp_ui_out ()
|
|
{
|
|
return this->mi_uiout;
|
|
}
|
|
|
|
/* Do MI-specific logging actions; save raw_stdout, and change all
|
|
the consoles to use the supplied ui-file(s). */
|
|
|
|
void
|
|
mi_interp::set_logging (ui_file_up logfile, bool logging_redirect,
|
|
bool debug_redirect)
|
|
{
|
|
struct mi_interp *mi = this;
|
|
|
|
if (logfile != NULL)
|
|
{
|
|
mi->saved_raw_stdout = mi->raw_stdout;
|
|
|
|
/* If something is being redirected, then grab logfile. */
|
|
ui_file *logfile_p = nullptr;
|
|
if (logging_redirect || debug_redirect)
|
|
{
|
|
logfile_p = logfile.get ();
|
|
mi->saved_raw_file_to_delete = logfile_p;
|
|
}
|
|
|
|
/* If something is not being redirected, then a tee containing both the
|
|
logfile and stdout. */
|
|
ui_file *tee = nullptr;
|
|
if (!logging_redirect || !debug_redirect)
|
|
{
|
|
tee = new tee_file (mi->raw_stdout, std::move (logfile));
|
|
mi->saved_raw_file_to_delete = tee;
|
|
}
|
|
|
|
mi->raw_stdout = logging_redirect ? logfile_p : tee;
|
|
mi->raw_stdlog = debug_redirect ? logfile_p : tee;
|
|
}
|
|
else
|
|
{
|
|
delete mi->saved_raw_file_to_delete;
|
|
mi->raw_stdout = mi->saved_raw_stdout;
|
|
mi->saved_raw_stdout = nullptr;
|
|
mi->saved_raw_file_to_delete = nullptr;
|
|
}
|
|
|
|
mi->out->set_raw (mi->raw_stdout);
|
|
mi->err->set_raw (mi->raw_stdout);
|
|
mi->log->set_raw (mi->raw_stdout);
|
|
mi->targ->set_raw (mi->raw_stdout);
|
|
mi->event_channel->set_raw (mi->raw_stdout);
|
|
}
|
|
|
|
/* Factory for MI interpreters. */
|
|
|
|
static struct interp *
|
|
mi_interp_factory (const char *name)
|
|
{
|
|
return new mi_interp (name);
|
|
}
|
|
|
|
void
|
|
_initialize_mi_interp (void)
|
|
{
|
|
/* The various interpreter levels. */
|
|
interp_factory_register (INTERP_MI1, mi_interp_factory);
|
|
interp_factory_register (INTERP_MI2, mi_interp_factory);
|
|
interp_factory_register (INTERP_MI3, mi_interp_factory);
|
|
interp_factory_register (INTERP_MI, mi_interp_factory);
|
|
|
|
gdb::observers::signal_received.attach (mi_on_signal_received);
|
|
gdb::observers::end_stepping_range.attach (mi_on_end_stepping_range);
|
|
gdb::observers::signal_exited.attach (mi_on_signal_exited);
|
|
gdb::observers::exited.attach (mi_on_exited);
|
|
gdb::observers::no_history.attach (mi_on_no_history);
|
|
gdb::observers::new_thread.attach (mi_new_thread);
|
|
gdb::observers::thread_exit.attach (mi_thread_exit);
|
|
gdb::observers::inferior_added.attach (mi_inferior_added);
|
|
gdb::observers::inferior_appeared.attach (mi_inferior_appeared);
|
|
gdb::observers::inferior_exit.attach (mi_inferior_exit);
|
|
gdb::observers::inferior_removed.attach (mi_inferior_removed);
|
|
gdb::observers::record_changed.attach (mi_record_changed);
|
|
gdb::observers::normal_stop.attach (mi_on_normal_stop);
|
|
gdb::observers::target_resumed.attach (mi_on_resume);
|
|
gdb::observers::solib_loaded.attach (mi_solib_loaded);
|
|
gdb::observers::solib_unloaded.attach (mi_solib_unloaded);
|
|
gdb::observers::about_to_proceed.attach (mi_about_to_proceed);
|
|
gdb::observers::traceframe_changed.attach (mi_traceframe_changed);
|
|
gdb::observers::tsv_created.attach (mi_tsv_created);
|
|
gdb::observers::tsv_deleted.attach (mi_tsv_deleted);
|
|
gdb::observers::tsv_modified.attach (mi_tsv_modified);
|
|
gdb::observers::breakpoint_created.attach (mi_breakpoint_created);
|
|
gdb::observers::breakpoint_deleted.attach (mi_breakpoint_deleted);
|
|
gdb::observers::breakpoint_modified.attach (mi_breakpoint_modified);
|
|
gdb::observers::command_param_changed.attach (mi_command_param_changed);
|
|
gdb::observers::memory_changed.attach (mi_memory_changed);
|
|
gdb::observers::sync_execution_done.attach (mi_on_sync_execution_done);
|
|
gdb::observers::user_selected_context_changed.attach
|
|
(mi_user_selected_context_changed);
|
|
}
|