Commit Graph

844 Commits

Author SHA1 Message Date
Simon Marchi
3cabb6b069 gdb: add type::fields / type::set_fields
Add the `fields` and `set_fields` methods on `struct type`, in order to
remove the `TYPE_FIELDS` macro.  In this patch, the `TYPE_FIELDS` macro
is changed to the `type::fields`, so all the call sites that use it to
set the fields array are changed to use `type::set_fields`.  The next
patch will remove `TYPE_FIELDS` entirely.

gdb/ChangeLog:

	* gdbtypes.h (struct type) <fields, set_fields>: New methods.
	(TYPE_FIELDS): Use type::fields.  Change all call sites that
	modify the propery to use type::set_fields instead.

Change-Id: I05174ce68f2ce3fccdf5d8b469ff141f14886b33
2020-05-22 16:55:16 -04:00
Simon Marchi
1f704f761b gdb: remove TYPE_NFIELDS macro
Remove `TYPE_NFIELDS`, changing all the call sites to use
`type::num_fields` directly.  This is quite a big diff, but this was
mostly done using sed and coccinelle.  A few call sites were done by
hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_NFIELDS): Remove.  Change all cal sites to use
	type::num_fields instead.

Change-Id: Ib73be4c36f9e770e0f729bac3b5257d7cb2f9591
2020-05-22 16:55:15 -04:00
Simon Marchi
5e33d5f4e1 gdb: add type::num_fields / type::set_num_fields
Add the `num_fields` and `set_num_fields` methods on `struct type`, in
order to remove the `TYPE_NFIELDS` macro.  In this patch, the
`TYPE_NFIELDS` macro is changed to use `type::num_fields`, so all the
call sites that are used to set the number of fields are changed to use
`type::set_num_fields`.  The next patch will remove `TYPE_NFIELDS`
completely.

I think that in the future, we should consider making the interface of
`struct type` better.  For example, right now it's possible for the
number of fields property and the actual number of fields set to be out
of sync.  However, I want to keep the existing behavior in this patch,
just translate from macros to methods.

gdb/ChangeLog:

	* gdbtypes.h (struct type) <num_fields, set_num_fields>: New
	methods.
	(TYPE_NFIELDS): Use type::num_fields.  Change all call sites
	that modify the number of fields to use type::set_num_fields
	instead.

Change-Id: I5ad9de5be4097feaf942d111077434bf91d13dc5
2020-05-22 16:55:14 -04:00
Tom Tromey
250106a76a Remove bound_name static from ada-lang.c
ada-lang.c has a "bound_name" static that is used when finding fields
in a structure in some cases.  This patch removes it in favor of
computing the desired field name at runtime; this avoids an artificial
limit.

I'm checking this in.  Tested on x86-64 Fedora 30, and also on the
internal AdaCore test suite.

gdb/ChangeLog
2020-05-20  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (bound_name, MAX_ADA_DIMENS): Remove.
        (desc_one_bound, desc_index_type): Compute field name.
2020-05-20 07:20:05 -06:00
Simon Marchi
7d93a1e0b6 gdb: remove TYPE_NAME macro
Remove `TYPE_NAME`, changing all the call sites to use `type::name`
directly.  This is quite a big diff, but this was mostly done using sed
and coccinelle.  A few call sites were done by hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_NAME): Remove.  Change all cal sites to use
	type::name instead.
2020-05-16 12:36:05 -04:00
Simon Marchi
d0e39ea27c gdb: add type::name / type::set_name
Add the `name` and `set_name` methods on `struct type`, in order to
remove the `TYPE_NAME` macro.  In this patch, the `TYPE_NAME` macro is
changed to use `type::name`, so all the call sites that are used to set
the type name are changed to use `type::set_name`.  The next patch will
remove `TYPE_NAME` completely.

gdb/ChangeLog:

	* gdbtypes.h (struct type) <name, set_name>: New methods.
	(TYPE_CODE): Use type::name.  Change all call sites used to set
	the name to use type::set_name instead.
2020-05-16 12:36:05 -04:00
Joel Brobecker
b2188a06e4 update name of several Ada fixed-point type handling functions
The purpose of this patch is to prepare for the future where
fixed point types become described using standard DWARF info,
rather than GNAT encodings. For that, we rename a number of
routines manipulating Ada fixed point types to make it explicit
from their new names that they rely on the GNAT encodings to work.
This will allow us, when we introduce support for fixed point types
from standard DWARF to use names that are not ambiguous with
the functions that do similar work, but only for GNAT encodings.

gdb/ChangeLog:

        * ada-lang.h: (ada_is_gnat_encoded_fixed_point_type): Renames
        ada_is_fixed_point_type.  Update all callers.
        (gnat_encoded_fixed_point_delta): Renames ada_delta.  Update
        all callers.
        * ada-lang.c (gnat_encoded_fixed_type_info): Renames fixed_type_info.
        Update all callers.
        * ada-typeprint.c (print_gnat_encoded_fixed_point_type): Renames
        print_fixed_point_type.  Update all callers.
        * ada-valprint.c (ada_value_print_num): Replace call to
        ada_is_fixed_point_type by ada_is_gnat_encoded_fixed_point_type.
2020-05-15 16:06:42 -04:00
Simon Marchi
7813437494 gdb: remove TYPE_CODE macro
Remove TYPE_CODE, changing all the call sites to use type::code
directly.  This is quite a big diff, but this was mostly done using sed
and coccinelle.  A few call sites were done by hand.

gdb/ChangeLog:

	* gdbtypes.h (TYPE_CODE): Remove.  Change all call sites to use
	type::code instead.
2020-05-14 13:46:38 -04:00
Simon Marchi
67607e24d0 gdb: add type::code / type::set_code
Add the code and set_code methods on code, in order to remove the
TYPE_CODE macro.  In this patch, the TYPE_CODE macro is changed to use
type::code, so all the call sites that are used to set the type code are
changed to use type::set_code.  The next patch will remove TYPE_CODE
completely.

gdb/ChangeLog:

	* gdbtypes.h (struct type) <code, set_code>: New methods.
	(TYPE_CODE): Use type::code.  Change all call sites used to set
	the code to use type::set_code instead.
2020-05-14 13:45:40 -04:00
Tom Tromey
a89febbd83 Remove ada-lang.c:align_value
I recently noticed the align_value function in ada-lang.c.  This can
be removed, in favor of align_up from gdbsupport.

gdb/ChangeLog
2020-05-13  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (align_value): Remove.
	(ada_template_to_fixed_record_type_1): Use align_up.
2020-05-13 13:15:13 -06:00
Tom Tromey
5eb68a39a2 Fix Ada value printing on PPC64
The val_print removal patches introduced an Ada regression on PPC64
(probably any big-endian system).

The issue comes because value_field does not understand that Ada
wrapper fields can be bitfields that wrap a non-scalar type.  In this
case the value is already left-justified, so the justification done
there does the wrong thing.

Perhaps it would be good, eventually, to change value_field to
understand this case.  In the meantime this implements an Ada-specific
solution.

gdb/ChangeLog
2020-05-11  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_value_primitive_field): Now public.
	* ada-lang.h (ada_value_primitive_field): Declare.
	* ada-valprint.c (print_field_values): Use
	ada_value_primitive_field for wrapper fields.
2020-05-11 14:57:49 -06:00
Simon Marchi
24e99c6c3c gdb: make get_dyn_prop a method of struct type
Move get_dyn_prop, currently a free function, to be a method on struct
type.

gdb/ChangeLog:

	* gdbtypes.h (struct type) <get_dyn_prop>: New method.
	(get_dyn_prop): Remove.  Update all users to use
	type::dyn_prop.
	* gdbtypes.c (get_dyn_prop): Rename to...
	(type::dyn_prop): ... this.
2020-05-07 11:32:25 -04:00
Tom Tromey
b249d2c2c0 Prefer existing data when evaluating DWARF expression
When evaluating a DWARF expression, the dynamic type resolution code
will pass in a buffer of bytes via the property_addr_info.  However,
the DWARF expression evaluator will then proceed to read memory from
the inferior, even when the request could be filled from this buffer.

This, in turn, is a problem in some cases; and specifically when
trying to handle the Ada scenario of extracting a variable-length
value from a packed array.  Here, the ordinary DWARF expression cannot
be directly evaluated, because the data may appear at some arbitrary
bit offset.  So, it is unpacked into a staging area and then the
expression is evaluated -- using an address of 0.

This patch fixes the problem by arranging for the DWARF evaluator, in
this case, to prefer passed-in memory when possible.  The type of the
buffer in the property_addr_info is changed to an array_view so that
bounds checking can be done.

gdb/ChangeLog
2020-04-24  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_discrete_type_high_bound, ada_discrete_type_low)
	(ada_value_primitive_packed_val): Update.
	* ada-valprint.c (ada_value_print_1): Update.
	* dwarf2/loc.c (evaluate_for_locexpr_baton): New struct.
	(dwarf2_locexpr_baton_eval): Take a property_addr_info rather than
	just an address.  Use evaluate_for_locexpr_baton.
	(dwarf2_evaluate_property): Update.
	* dwarf2/loc.h (struct property_addr_info) <valaddr>: Now an
	array_view.
	* findvar.c (default_read_var_value): Update.
	* gdbtypes.c (compute_variant_fields_inner)
	(resolve_dynamic_type_internal): Update.
	(resolve_dynamic_type): Change type of valaddr parameter.
	* gdbtypes.h (resolve_dynamic_type): Update.
	* valarith.c (value_subscripted_rvalue): Update.
	* value.c (value_from_contents_and_address): Update.
2020-04-24 13:40:31 -06:00
Tom Tromey
0743fc83c0 Replace most calls to help_list and cmd_show_list
Currently there are many prefix commands that do nothing but call
either help_list or cmd_show_list.  I happened to notice that one such
call, for "set print type", used the wrong command list parameter,
causing incorrect output.

Rather than fix this bug in isolation, I decided to eliminate this
possibility by adding two new ways to add prefix commands, which
simply route the call to help_list or cmd_show_list, as appropriate.
This makes it impossible for a mismatch to occur.

In some cases, a bit of output was removed; however, I don't think
this output in general was very useful.  It seemed redundant with
what's already printed by help_list.  A representative example is this
hunk, removed from ada-lang.c:

-  printf_unfiltered (_(\
-"\"set ada\" must be followed by the name of a setting.\n"));

This simplified the CLI style set/show commands quite a bit, and
allowed the deletion of a macro.

This also cleans up some unusual code in windows-tdep.c.

Tested on x86-64 Fedora 30.  Note that I have no way to build the
go32-nat.c change.

gdb/ChangeLog
2020-04-17  Tom Tromey  <tromey@adacore.com>

	* auto-load.c (show_auto_load_cmd): Remove.
	(auto_load_show_cmdlist_get): Use add_show_prefix_cmd.
	* arc-tdep.c (_initialize_arc_tdep): Use add_show_prefix_cmd.
	(maintenance_print_arc_command): Remove.
	* tui/tui-win.c (tui_command): Remove.
	(tui_get_cmd_list): Use add_basic_prefix_cmd.
	* tui/tui-layout.c (tui_layout_command): Remove.
	(_initialize_tui_layout): Use add_basic_prefix_cmd.
	* python/python.c (user_set_python, user_show_python): Remove.
	(_initialize_python): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* guile/guile.c (set_guile_command, show_guile_command): Remove.
	(install_gdb_commands): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(info_guile_command): Remove.
	* dwarf2/read.c (set_dwarf_cmd, show_dwarf_cmd): Remove.
	(_initialize_dwarf2_read): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cli/cli-style.h (class cli_style_option) <add_setshow_commands>:
	Remove do_set and do_show parameters.
	* cli/cli-style.c (set_style, show_style): Remove.
	(_initialize_cli_style): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(cli_style_option::add_setshow_commands): Remove do_set and
	do_show parameters.
	(cli_style_option::add_setshow_commands): Use
	add_basic_prefix_cmd, add_show_prefix_cmd.
	(STYLE_ADD_SETSHOW_COMMANDS): Remove macro.
	(set_style_name): Remove.
	* cli/cli-dump.c (dump_command, append_command): Remove.
	(srec_dump_command, ihex_dump_command, verilog_dump_command)
	(tekhex_dump_command, binary_dump_command)
	(binary_append_command): Remove.
	(_initialize_cli_dump): Use add_basic_prefix_cmd.
	* windows-tdep.c (w32_prefix_command_valid): Remove global.
	(init_w32_command_list): Remove; move into ...
	(_initialize_windows_tdep): ... here.  Use add_basic_prefix_cmd.
	* valprint.c (set_print, show_print, set_print_raw)
	(show_print_raw): Remove.
	(_initialize_valprint): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* typeprint.c (set_print_type, show_print_type): Remove.
	(_initialize_typeprint): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* record.c (set_record_command, show_record_command): Remove.
	(_initialize_record): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cli/cli-cmds.c (_initialize_cli_cmds): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(info_command, show_command, set_debug, show_debug): Remove.
	* top.h (set_history, show_history): Don't declare.
	* top.c (set_history, show_history): Remove.
	* target-descriptions.c (set_tdesc_cmd, show_tdesc_cmd)
	(unset_tdesc_cmd): Remove.
	(_initialize_target_descriptions): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* symtab.c (info_module_command): Remove.
	(_initialize_symtab): Use add_basic_prefix_cmd.
	* symfile.c (overlay_command): Remove.
	(_initialize_symfile): Use add_basic_prefix_cmd.
	* sparc64-tdep.c (info_adi_command): Remove.
	(_initialize_sparc64_adi_tdep): Use add_basic_prefix_cmd.
	* sh-tdep.c (show_sh_command, set_sh_command): Remove.
	(_initialize_sh_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* serial.c (serial_set_cmd, serial_show_cmd): Remove.
	(_initialize_serial): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ser-tcp.c (set_tcp_cmd, show_tcp_cmd): Remove.
	(_initialize_ser_tcp): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* rs6000-tdep.c (set_powerpc_command, show_powerpc_command)
	(_initialize_rs6000_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* riscv-tdep.c (show_riscv_command, set_riscv_command)
	(show_debug_riscv_command, set_debug_riscv_command): Remove.
	(_initialize_riscv_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* remote.c (remote_command, set_remote_cmd): Remove.
	(_initialize_remote): Use add_basic_prefix_cmd.
	* record-full.c (set_record_full_command)
	(show_record_full_command): Remove.
	(_initialize_record_full): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* record-btrace.c (cmd_set_record_btrace)
	(cmd_show_record_btrace, cmd_set_record_btrace_bts)
	(cmd_show_record_btrace_bts, cmd_set_record_btrace_pt)
	(cmd_show_record_btrace_pt): Remove.
	(_initialize_record_btrace): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ravenscar-thread.c (set_ravenscar_command)
	(show_ravenscar_command): Remove.
	(_initialize_ravenscar): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* mips-tdep.c (show_mips_command, set_mips_command)
	(_initialize_mips_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* maint.c (maintenance_command, maintenance_info_command)
	(maintenance_check_command, maintenance_print_command)
	(maintenance_set_cmd, maintenance_show_cmd): Remove.
	(_initialize_maint_cmds): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	(show_per_command_cmd): Remove.
	* maint-test-settings.c (maintenance_set_test_settings_cmd):
	Remove.
	(maintenance_show_test_settings_cmd): Remove.
	(_initialize_maint_test_settings): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* maint-test-options.c (maintenance_test_options_command):
	Remove.
	(_initialize_maint_test_options): Use add_basic_prefix_cmd.
	* macrocmd.c (macro_command): Remove
	(_initialize_macrocmd): Use add_basic_prefix_cmd.
	* language.c (set_check, show_check): Remove.
	(_initialize_language): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* infcmd.c (unset_command): Remove.
	(_initialize_infcmd): Use add_basic_prefix_cmd.
	* i386-tdep.c (set_mpx_cmd, show_mpx_cmd): Remove.
	(_initialize_i386_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* go32-nat.c (go32_info_dos_command): Remove.
	(_initialize_go32_nat): Use add_basic_prefix_cmd.
	* cli/cli-decode.c (do_prefix_cmd, add_basic_prefix_cmd)
	(do_show_prefix_cmd, add_show_prefix_cmd): New functions.
	* frame.c (set_backtrace_cmd, show_backtrace_cmd): Remove.
	(_initialize_frame): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* dcache.c (set_dcache_command, show_dcache_command): Remove.
	(_initialize_dcache): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* cp-support.c (maint_cplus_command): Remove.
	(_initialize_cp_support): Use add_basic_prefix_cmd.
	* btrace.c (maint_btrace_cmd, maint_btrace_set_cmd)
	(maint_btrace_show_cmd, maint_btrace_pt_set_cmd)
	(maint_btrace_pt_show_cmd, _initialize_btrace): Use
	add_basic_prefix_cmd, add_show_prefix_cmd.
	* breakpoint.c (save_command): Remove.
	(_initialize_breakpoint): Use add_basic_prefix_cmd.
	* arm-tdep.c (set_arm_command, show_arm_command): Remove.
	(_initialize_arm_tdep): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* ada-lang.c (maint_set_ada_cmd, maint_show_ada_cmd)
	(set_ada_command, show_ada_command): Remove.
	(_initialize_ada_language): Use add_basic_prefix_cmd,
	add_show_prefix_cmd.
	* command.h (add_basic_prefix_cmd, add_show_prefix_cmd): Declare.

gdb/testsuite/ChangeLog
2020-04-17  Tom Tromey  <tromey@adacore.com>

	* gdb.cp/maint.exp (test_help): Simplify multiple_help_body.
	Update tests.
	* gdb.btrace/cpu.exp: Update tests.
	* gdb.base/maint.exp: Update tests.
	* gdb.base/default.exp: Update tests.
	* gdb.base/completion.exp: Update tests.
2020-04-17 15:13:41 -06:00
Tom Tromey
e0802d5996 Avoid copying in lookup_name_info
lookup_name_info always copies the name that is passed in.  However,
normally a copy is not needed.  This patch changes this class to avoid
copying.  This required changing the "name" method to return something
else; I chose a gdb::string_view, to avoid excessive calls to strlen
in the code using the lookup_name_info.  However, as this class does
not allow an arbitrary string_view, I've also added a c_str method
that guarantees a \0-terminated result -- a pedantic difference but
one that respects the string_view contract, IMO.

gdb/ChangeLog
2020-04-01  Tom Tromey  <tromey@adacore.com>

	* symtab.h (class lookup_name_info) <lookup_name_info>: Change
	"name" parameter to rvalue reference.  Initialize m_name_holder.
	<lookup_name_info>: New overloads.
	<name>: Return gdb::string_view.
	<c_str>: New method.
	<make_ignore_params>: Update.
	<search_name_hash>: Update.
	<language_lookup_name>: Return const char *.
	<m_name>: Change type.
	* symtab.c (demangle_for_lookup_info::demangle_for_lookup_info)
	(demangle_for_lookup_info::demangle_for_lookup_info): Update.
	(lookup_name_info::match_any): Update.
	* psymtab.c (match_partial_symbol, lookup_partial_symbol):
	Update.
	* minsyms.c (linkage_name_str): Update.
	* language.c (default_symbol_name_matcher): Update.
	* dwarf2/read.c (mapped_index_base::find_name_components_bounds):
	Update.
	* ada-lang.c (ada_fold_name): Change parameter to string_view.
	(ada_lookup_name_info::ada_lookup_name_info): Update.
	(literal_symbol_name_matcher): Update.
2020-04-01 07:47:13 -06:00
Tom Tromey
d8af906814 Change ada_which_variant_applies to value API
While debugging an Ada regression, I noticed that all the callers of
ada_which_variant_applies desconstruct a value, only to have it be
reconstructed by this function.

This patch removes this inefficiency in favor of simply passing in the
value directly.

Tested on x86-64 Fedora 30.

gdb/ChangeLog
2020-03-30  Tom Tromey  <tromey@adacore.com>

	* ada-valprint.c (print_variant_part): Update.
	* ada-lang.h (ada_which_variant_applies): Update.
	* ada-lang.c (ada_which_variant_applies): Remove outer_type and
	outer_valaddr parameters; replace with "outer" value parameter.
	(to_fixed_variant_branch_type): Update.
2020-03-30 11:54:50 -06:00
Tom Tromey
426a9c18dd Remove val_print
We can finally remove val_print and various helper functions that are
no longer needed.

gdb/ChangeLog
2020-03-13  Tom Tromey  <tom@tromey.com>

	* value.h (val_print): Don't declare.
	* valprint.h (val_print_array_elements)
	(val_print_scalar_formatted, generic_val_print): Don't declare.
	* valprint.c (generic_val_print_array): Take a struct value.
	(generic_val_print_ptr, generic_val_print_memberptr)
	(generic_val_print_bool, generic_val_print_int)
	(generic_val_print_char, generic_val_print_complex)
	(generic_val_print): Remove.
	(generic_value_print): Update.
	(do_val_print): Remove unused parameters.  Don't call
	la_val_print.
	(val_print): Remove.
	(common_val_print): Update.  Don't call value_check_printable.
	(val_print_scalar_formatted, val_print_array_elements): Remove.
	* rust-lang.c (rust_val_print): Remove.
	(rust_language_defn): Update.
	* p-valprint.c (pascal_val_print): Remove.
	(pascal_value_print_inner): Update.
	(pascal_object_print_val_fields, pascal_object_print_val):
	Remove.
	(pascal_object_print_static_field): Update.
	* p-lang.h (pascal_val_print): Don't declare.
	* p-lang.c (pascal_language_defn): Update.
	* opencl-lang.c (opencl_language_defn): Update.
	* objc-lang.c (objc_language_defn): Update.
	* m2-valprint.c (m2_print_unbounded_array, m2_val_print): Remove.
	* m2-lang.h (m2_val_print): Don't declare.
	* m2-lang.c (m2_language_defn): Update.
	* language.h (struct language_defn) <la_val_print>: Remove.
	* language.c (unk_lang_value_print_inner): Rename.  Change
	argument types.
	(unknown_language_defn, auto_language_defn): Update.
	* go-valprint.c (go_val_print): Remove.
	* go-lang.h (go_val_print): Don't declare.
	* go-lang.c (go_language_defn): Update.
	* f-valprint.c (f_val_print): Remove.
	* f-lang.h (f_value_print): Don't declare.
	* f-lang.c (f_language_defn): Update.
	* d-valprint.c (d_val_print): Remove.
	* d-lang.h (d_value_print): Don't declare.
	* d-lang.c (d_language_defn): Update.
	* cp-valprint.c (cp_print_value_fields)
	(cp_print_value_fields_rtti, cp_print_value): Remove.
	(cp_print_static_field): Update.
	* c-valprint.c (c_val_print_array, c_val_print_ptr)
	(c_val_print_struct, c_val_print_union, c_val_print_int)
	(c_val_print_memberptr, c_val_print): Remove.
	* c-lang.h (c_val_print_array, cp_print_value_fields)
	(cp_print_value_fields_rtti): Don't declare.
	* c-lang.c (c_language_defn, cplus_language_defn)
	(asm_language_defn, minimal_language_defn): Update.
	* ada-valprint.c (ada_val_print_ptr, ada_val_print_num): Remove.
	(ada_val_print_enum): Take a struct value.
	(ada_val_print_flt, ada_val_print_array, ada_val_print_1)
	(ada_val_print): Remove.
	(ada_value_print_1): Update.
	(printable_val_type): Remove.
	* ada-lang.h (ada_val_print): Don't declare.
	* ada-lang.c (ada_language_defn): Update.
2020-03-13 18:03:42 -06:00
Tom Tromey
26792ee034 Introduce ada_value_print_inner
This introduces ada_value_print_inner.

gdb/ChangeLog
2020-03-13  Tom Tromey  <tom@tromey.com>

	* ada-valprint.c (ada_value_print_inner): New function.
	* ada-lang.h (ada_value_print_inner): Declare.
	* ada-lang.c (ada_language_defn): Use ada_value_print_inner.
2020-03-13 18:03:40 -06:00
Tom Tromey
2b4e573d62 Introduce la_value_print_inner
The plan for removing val_print is, essentially, to first duplicate
printing code as needed to use the value API; and then remove the
val_print code.  This makes it possible to do the changes
incrementally while keeping everything working.

This adds a new la_value_print_inner function pointer to struct
language_defn.  Eventually this will replace la_val_print.  This patch
also changes printing to prefer this API, when available -- but no
language defines it yet.

gdb/ChangeLog
2020-03-13  Tom Tromey  <tom@tromey.com>

	* valprint.c (do_val_print): Call la_value_print_inner, if
	available.
	* rust-lang.c (rust_language_defn): Update.
	* p-lang.c (pascal_language_defn): Update.
	* opencl-lang.c (opencl_language_defn): Update.
	* objc-lang.c (objc_language_defn): Update.
	* m2-lang.c (m2_language_defn): Update.
	* language.h (struct language_defn) <la_value_print_inner>: New
	member.
	* language.c (unknown_language_defn, auto_language_defn): Update.
	* go-lang.c (go_language_defn): Update.
	* f-lang.c (f_language_defn): Update.
	* d-lang.c (d_language_defn): Update.
	* c-lang.c (c_language_defn, cplus_language_defn)
	(asm_language_defn, minimal_language_defn): Update.
	* ada-lang.c (ada_language_defn): Update.
2020-03-13 18:03:39 -06:00
Tom Tromey
2ef5453be5 Use obstack_strdup in ada-lang.c
I happened across a spot that was still using obstack_alloc and
strcpy, rather than obstack_strdup.  This patch makes the obvious fix.

gdb/ChangeLog
2020-02-19  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (cache_symbol): Use obstack_strdup.
2020-02-19 11:17:35 -07:00
Simon Marchi
6c2659886f gdb: add back declarations for _initialize functions
I'd like to enable the -Wmissing-declarations warning.  However, it
warns for every _initialize function, for example:

      CXX    dcache.o
    /home/smarchi/src/binutils-gdb/gdb/dcache.c: In function ‘void _initialize_dcache()’:
    /home/smarchi/src/binutils-gdb/gdb/dcache.c:688:1: error: no previous declaration for ‘void _initialize_dcache()’ [-Werror=missing-declarations]
     _initialize_dcache (void)
     ^~~~~~~~~~~~~~~~~~

The only practical way forward I found is to add back the declarations,
which were removed by this commit:

    commit 481695ed5f
    Author: John Baldwin <jhb@FreeBSD.org>
    Date:   Sat Sep 9 11:02:37 2017 -0700

        Remove unnecessary function prototypes.

I don't think it's a big problem to have the declarations for these
functions, but if anybody has a better solution for this, I'll be happy
to use it.

gdb/ChangeLog:

	* aarch64-fbsd-nat.c (_initialize_aarch64_fbsd_nat): Add declaration.
	* aarch64-fbsd-tdep.c (_initialize_aarch64_fbsd_tdep): Add declaration.
	* aarch64-linux-nat.c (_initialize_aarch64_linux_nat): Add declaration.
	* aarch64-linux-tdep.c (_initialize_aarch64_linux_tdep): Add declaration.
	* aarch64-newlib-tdep.c (_initialize_aarch64_newlib_tdep): Add declaration.
	* aarch64-tdep.c (_initialize_aarch64_tdep): Add declaration.
	* ada-exp.y (_initialize_ada_exp): Add declaration.
	* ada-lang.c (_initialize_ada_language): Add declaration.
	* ada-tasks.c (_initialize_tasks): Add declaration.
	* agent.c (_initialize_agent): Add declaration.
	* aix-thread.c (_initialize_aix_thread): Add declaration.
	* alpha-bsd-nat.c (_initialize_alphabsd_nat): Add declaration.
	* alpha-linux-nat.c (_initialize_alpha_linux_nat): Add declaration.
	* alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add declaration.
	* alpha-nbsd-tdep.c (_initialize_alphanbsd_tdep): Add declaration.
	* alpha-obsd-tdep.c (_initialize_alphaobsd_tdep): Add declaration.
	* alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
	* amd64-darwin-tdep.c (_initialize_amd64_darwin_tdep): Add declaration.
	* amd64-dicos-tdep.c (_initialize_amd64_dicos_tdep): Add declaration.
	* amd64-fbsd-nat.c (_initialize_amd64fbsd_nat): Add declaration.
	* amd64-fbsd-tdep.c (_initialize_amd64fbsd_tdep): Add declaration.
	* amd64-linux-nat.c (_initialize_amd64_linux_nat): Add declaration.
	* amd64-linux-tdep.c (_initialize_amd64_linux_tdep): Add declaration.
	* amd64-nbsd-nat.c (_initialize_amd64nbsd_nat): Add declaration.
	* amd64-nbsd-tdep.c (_initialize_amd64nbsd_tdep): Add declaration.
	* amd64-obsd-nat.c (_initialize_amd64obsd_nat): Add declaration.
	* amd64-obsd-tdep.c (_initialize_amd64obsd_tdep): Add declaration.
	* amd64-sol2-tdep.c (_initialize_amd64_sol2_tdep): Add declaration.
	* amd64-tdep.c (_initialize_amd64_tdep): Add declaration.
	* amd64-windows-nat.c (_initialize_amd64_windows_nat): Add declaration.
	* amd64-windows-tdep.c (_initialize_amd64_windows_tdep): Add declaration.
	* annotate.c (_initialize_annotate): Add declaration.
	* arc-newlib-tdep.c (_initialize_arc_newlib_tdep): Add declaration.
	* arc-tdep.c (_initialize_arc_tdep): Add declaration.
	* arch-utils.c (_initialize_gdbarch_utils): Add declaration.
	* arm-fbsd-nat.c (_initialize_arm_fbsd_nat): Add declaration.
	* arm-fbsd-tdep.c (_initialize_arm_fbsd_tdep): Add declaration.
	* arm-linux-nat.c (_initialize_arm_linux_nat): Add declaration.
	* arm-linux-tdep.c (_initialize_arm_linux_tdep): Add declaration.
	* arm-nbsd-nat.c (_initialize_arm_netbsd_nat): Add declaration.
	* arm-nbsd-tdep.c (_initialize_arm_netbsd_tdep): Add declaration.
	* arm-obsd-tdep.c (_initialize_armobsd_tdep): Add declaration.
	* arm-pikeos-tdep.c (_initialize_arm_pikeos_tdep): Add declaration.
	* arm-symbian-tdep.c (_initialize_arm_symbian_tdep): Add declaration.
	* arm-tdep.c (_initialize_arm_tdep): Add declaration.
	* arm-wince-tdep.c (_initialize_arm_wince_tdep): Add declaration.
	* auto-load.c (_initialize_auto_load): Add declaration.
	* auxv.c (_initialize_auxv): Add declaration.
	* avr-tdep.c (_initialize_avr_tdep): Add declaration.
	* ax-gdb.c (_initialize_ax_gdb): Add declaration.
	* bfin-linux-tdep.c (_initialize_bfin_linux_tdep): Add declaration.
	* bfin-tdep.c (_initialize_bfin_tdep): Add declaration.
	* break-catch-sig.c (_initialize_break_catch_sig): Add declaration.
	* break-catch-syscall.c (_initialize_break_catch_syscall): Add declaration.
	* break-catch-throw.c (_initialize_break_catch_throw): Add declaration.
	* breakpoint.c (_initialize_breakpoint): Add declaration.
	* bsd-uthread.c (_initialize_bsd_uthread): Add declaration.
	* btrace.c (_initialize_btrace): Add declaration.
	* charset.c (_initialize_charset): Add declaration.
	* cli/cli-cmds.c (_initialize_cli_cmds): Add declaration.
	* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
	* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
	* cli/cli-logging.c (_initialize_cli_logging): Add declaration.
	* cli/cli-script.c (_initialize_cli_script): Add declaration.
	* cli/cli-style.c (_initialize_cli_style): Add declaration.
	* coff-pe-read.c (_initialize_coff_pe_read): Add declaration.
	* coffread.c (_initialize_coffread): Add declaration.
	* compile/compile-cplus-types.c (_initialize_compile_cplus_types): Add declaration.
	* compile/compile.c (_initialize_compile): Add declaration.
	* complaints.c (_initialize_complaints): Add declaration.
	* completer.c (_initialize_completer): Add declaration.
	* copying.c (_initialize_copying): Add declaration.
	* corefile.c (_initialize_core): Add declaration.
	* corelow.c (_initialize_corelow): Add declaration.
	* cp-abi.c (_initialize_cp_abi): Add declaration.
	* cp-namespace.c (_initialize_cp_namespace): Add declaration.
	* cp-support.c (_initialize_cp_support): Add declaration.
	* cp-valprint.c (_initialize_cp_valprint): Add declaration.
	* cris-linux-tdep.c (_initialize_cris_linux_tdep): Add declaration.
	* cris-tdep.c (_initialize_cris_tdep): Add declaration.
	* csky-linux-tdep.c (_initialize_csky_linux_tdep): Add declaration.
	* csky-tdep.c (_initialize_csky_tdep): Add declaration.
	* ctfread.c (_initialize_ctfread): Add declaration.
	* d-lang.c (_initialize_d_language): Add declaration.
	* darwin-nat-info.c (_initialize_darwin_info_commands): Add declaration.
	* darwin-nat.c (_initialize_darwin_nat): Add declaration.
	* dbxread.c (_initialize_dbxread): Add declaration.
	* dcache.c (_initialize_dcache): Add declaration.
	* disasm-selftests.c (_initialize_disasm_selftests): Add declaration.
	* disasm.c (_initialize_disasm): Add declaration.
	* dtrace-probe.c (_initialize_dtrace_probe): Add declaration.
	* dummy-frame.c (_initialize_dummy_frame): Add declaration.
	* dwarf-index-cache.c (_initialize_index_cache): Add declaration.
	* dwarf-index-write.c (_initialize_dwarf_index_write): Add declaration.
	* dwarf2-frame-tailcall.c (_initialize_tailcall_frame): Add declaration.
	* dwarf2-frame.c (_initialize_dwarf2_frame): Add declaration.
	* dwarf2expr.c (_initialize_dwarf2expr): Add declaration.
	* dwarf2loc.c (_initialize_dwarf2loc): Add declaration.
	* dwarf2read.c (_initialize_dwarf2_read): Add declaration.
	* elfread.c (_initialize_elfread): Add declaration.
	* exec.c (_initialize_exec): Add declaration.
	* extension.c (_initialize_extension): Add declaration.
	* f-lang.c (_initialize_f_language): Add declaration.
	* f-valprint.c (_initialize_f_valprint): Add declaration.
	* fbsd-nat.c (_initialize_fbsd_nat): Add declaration.
	* fbsd-tdep.c (_initialize_fbsd_tdep): Add declaration.
	* filesystem.c (_initialize_filesystem): Add declaration.
	* findcmd.c (_initialize_mem_search): Add declaration.
	* findvar.c (_initialize_findvar): Add declaration.
	* fork-child.c (_initialize_fork_child): Add declaration.
	* frame-base.c (_initialize_frame_base): Add declaration.
	* frame-unwind.c (_initialize_frame_unwind): Add declaration.
	* frame.c (_initialize_frame): Add declaration.
	* frv-linux-tdep.c (_initialize_frv_linux_tdep): Add declaration.
	* frv-tdep.c (_initialize_frv_tdep): Add declaration.
	* ft32-tdep.c (_initialize_ft32_tdep): Add declaration.
	* gcore.c (_initialize_gcore): Add declaration.
	* gdb-demangle.c (_initialize_gdb_demangle): Add declaration.
	* gdb_bfd.c (_initialize_gdb_bfd): Add declaration.
	* gdbarch-selftests.c (_initialize_gdbarch_selftests): Add declaration.
	* gdbarch.c (_initialize_gdbarch): Add declaration.
	* gdbtypes.c (_initialize_gdbtypes): Add declaration.
	* gnu-nat.c (_initialize_gnu_nat): Add declaration.
	* gnu-v2-abi.c (_initialize_gnu_v2_abi): Add declaration.
	* gnu-v3-abi.c (_initialize_gnu_v3_abi): Add declaration.
	* go-lang.c (_initialize_go_language): Add declaration.
	* go32-nat.c (_initialize_go32_nat): Add declaration.
	* guile/guile.c (_initialize_guile): Add declaration.
	* h8300-tdep.c (_initialize_h8300_tdep): Add declaration.
	* hppa-linux-nat.c (_initialize_hppa_linux_nat): Add declaration.
	* hppa-linux-tdep.c (_initialize_hppa_linux_tdep): Add declaration.
	* hppa-nbsd-nat.c (_initialize_hppanbsd_nat): Add declaration.
	* hppa-nbsd-tdep.c (_initialize_hppanbsd_tdep): Add declaration.
	* hppa-obsd-nat.c (_initialize_hppaobsd_nat): Add declaration.
	* hppa-obsd-tdep.c (_initialize_hppabsd_tdep): Add declaration.
	* hppa-tdep.c (_initialize_hppa_tdep): Add declaration.
	* i386-bsd-nat.c (_initialize_i386bsd_nat): Add declaration.
	* i386-cygwin-tdep.c (_initialize_i386_cygwin_tdep): Add declaration.
	* i386-darwin-nat.c (_initialize_i386_darwin_nat): Add declaration.
	* i386-darwin-tdep.c (_initialize_i386_darwin_tdep): Add declaration.
	* i386-dicos-tdep.c (_initialize_i386_dicos_tdep): Add declaration.
	* i386-fbsd-nat.c (_initialize_i386fbsd_nat): Add declaration.
	* i386-fbsd-tdep.c (_initialize_i386fbsd_tdep): Add declaration.
	* i386-gnu-nat.c (_initialize_i386gnu_nat): Add declaration.
	* i386-gnu-tdep.c (_initialize_i386gnu_tdep): Add declaration.
	* i386-go32-tdep.c (_initialize_i386_go32_tdep): Add declaration.
	* i386-linux-nat.c (_initialize_i386_linux_nat): Add declaration.
	* i386-linux-tdep.c (_initialize_i386_linux_tdep): Add declaration.
	* i386-nbsd-nat.c (_initialize_i386nbsd_nat): Add declaration.
	* i386-nbsd-tdep.c (_initialize_i386nbsd_tdep): Add declaration.
	* i386-nto-tdep.c (_initialize_i386nto_tdep): Add declaration.
	* i386-obsd-nat.c (_initialize_i386obsd_nat): Add declaration.
	* i386-obsd-tdep.c (_initialize_i386obsd_tdep): Add declaration.
	* i386-sol2-nat.c (_initialize_amd64_sol2_nat): Add declaration.
	* i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Add declaration.
	* i386-tdep.c (_initialize_i386_tdep): Add declaration.
	* i386-windows-nat.c (_initialize_i386_windows_nat): Add declaration.
	* ia64-libunwind-tdep.c (_initialize_libunwind_frame): Add declaration.
	* ia64-linux-nat.c (_initialize_ia64_linux_nat): Add declaration.
	* ia64-linux-tdep.c (_initialize_ia64_linux_tdep): Add declaration.
	* ia64-tdep.c (_initialize_ia64_tdep): Add declaration.
	* ia64-vms-tdep.c (_initialize_ia64_vms_tdep): Add declaration.
	* infcall.c (_initialize_infcall): Add declaration.
	* infcmd.c (_initialize_infcmd): Add declaration.
	* inflow.c (_initialize_inflow): Add declaration.
	* infrun.c (_initialize_infrun): Add declaration.
	* interps.c (_initialize_interpreter): Add declaration.
	* iq2000-tdep.c (_initialize_iq2000_tdep): Add declaration.
	* jit.c (_initialize_jit): Add declaration.
	* language.c (_initialize_language): Add declaration.
	* linux-fork.c (_initialize_linux_fork): Add declaration.
	* linux-nat.c (_initialize_linux_nat): Add declaration.
	* linux-tdep.c (_initialize_linux_tdep): Add declaration.
	* linux-thread-db.c (_initialize_thread_db): Add declaration.
	* lm32-tdep.c (_initialize_lm32_tdep): Add declaration.
	* m2-lang.c (_initialize_m2_language): Add declaration.
	* m32c-tdep.c (_initialize_m32c_tdep): Add declaration.
	* m32r-linux-nat.c (_initialize_m32r_linux_nat): Add declaration.
	* m32r-linux-tdep.c (_initialize_m32r_linux_tdep): Add declaration.
	* m32r-tdep.c (_initialize_m32r_tdep): Add declaration.
	* m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration.
	* m68k-bsd-nat.c (_initialize_m68kbsd_nat): Add declaration.
	* m68k-bsd-tdep.c (_initialize_m68kbsd_tdep): Add declaration.
	* m68k-linux-nat.c (_initialize_m68k_linux_nat): Add declaration.
	* m68k-linux-tdep.c (_initialize_m68k_linux_tdep): Add declaration.
	* m68k-tdep.c (_initialize_m68k_tdep): Add declaration.
	* machoread.c (_initialize_machoread): Add declaration.
	* macrocmd.c (_initialize_macrocmd): Add declaration.
	* macroscope.c (_initialize_macroscope): Add declaration.
	* maint-test-options.c (_initialize_maint_test_options): Add declaration.
	* maint-test-settings.c (_initialize_maint_test_settings): Add declaration.
	* maint.c (_initialize_maint_cmds): Add declaration.
	* mdebugread.c (_initialize_mdebugread): Add declaration.
	* memattr.c (_initialize_mem): Add declaration.
	* mep-tdep.c (_initialize_mep_tdep): Add declaration.
	* mi/mi-cmd-env.c (_initialize_mi_cmd_env): Add declaration.
	* mi/mi-cmds.c (_initialize_mi_cmds): Add declaration.
	* mi/mi-interp.c (_initialize_mi_interp): Add declaration.
	* mi/mi-main.c (_initialize_mi_main): Add declaration.
	* microblaze-linux-tdep.c (_initialize_microblaze_linux_tdep): Add declaration.
	* microblaze-tdep.c (_initialize_microblaze_tdep): Add declaration.
	* mips-fbsd-nat.c (_initialize_mips_fbsd_nat): Add declaration.
	* mips-fbsd-tdep.c (_initialize_mips_fbsd_tdep): Add declaration.
	* mips-linux-nat.c (_initialize_mips_linux_nat): Add declaration.
	* mips-linux-tdep.c (_initialize_mips_linux_tdep): Add declaration.
	* mips-nbsd-nat.c (_initialize_mipsnbsd_nat): Add declaration.
	* mips-nbsd-tdep.c (_initialize_mipsnbsd_tdep): Add declaration.
	* mips-sde-tdep.c (_initialize_mips_sde_tdep): Add declaration.
	* mips-tdep.c (_initialize_mips_tdep): Add declaration.
	* mips64-obsd-nat.c (_initialize_mips64obsd_nat): Add declaration.
	* mips64-obsd-tdep.c (_initialize_mips64obsd_tdep): Add declaration.
	* mipsread.c (_initialize_mipsread): Add declaration.
	* mn10300-linux-tdep.c (_initialize_mn10300_linux_tdep): Add declaration.
	* mn10300-tdep.c (_initialize_mn10300_tdep): Add declaration.
	* moxie-tdep.c (_initialize_moxie_tdep): Add declaration.
	* msp430-tdep.c (_initialize_msp430_tdep): Add declaration.
	* nds32-tdep.c (_initialize_nds32_tdep): Add declaration.
	* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Add declaration.
	* nios2-tdep.c (_initialize_nios2_tdep): Add declaration.
	* nto-procfs.c (_initialize_procfs): Add declaration.
	* objc-lang.c (_initialize_objc_language): Add declaration.
	* observable.c (_initialize_observer): Add declaration.
	* opencl-lang.c (_initialize_opencl_language): Add declaration.
	* or1k-linux-tdep.c (_initialize_or1k_linux_tdep): Add declaration.
	* or1k-tdep.c (_initialize_or1k_tdep): Add declaration.
	* osabi.c (_initialize_gdb_osabi): Add declaration.
	* osdata.c (_initialize_osdata): Add declaration.
	* p-valprint.c (_initialize_pascal_valprint): Add declaration.
	* parse.c (_initialize_parse): Add declaration.
	* ppc-fbsd-nat.c (_initialize_ppcfbsd_nat): Add declaration.
	* ppc-fbsd-tdep.c (_initialize_ppcfbsd_tdep): Add declaration.
	* ppc-linux-nat.c (_initialize_ppc_linux_nat): Add declaration.
	* ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Add declaration.
	* ppc-nbsd-nat.c (_initialize_ppcnbsd_nat): Add declaration.
	* ppc-nbsd-tdep.c (_initialize_ppcnbsd_tdep): Add declaration.
	* ppc-obsd-nat.c (_initialize_ppcobsd_nat): Add declaration.
	* ppc-obsd-tdep.c (_initialize_ppcobsd_tdep): Add declaration.
	* printcmd.c (_initialize_printcmd): Add declaration.
	* probe.c (_initialize_probe): Add declaration.
	* proc-api.c (_initialize_proc_api): Add declaration.
	* proc-events.c (_initialize_proc_events): Add declaration.
	* proc-service.c (_initialize_proc_service): Add declaration.
	* procfs.c (_initialize_procfs): Add declaration.
	* producer.c (_initialize_producer): Add declaration.
	* psymtab.c (_initialize_psymtab): Add declaration.
	* python/python.c (_initialize_python): Add declaration.
	* ravenscar-thread.c (_initialize_ravenscar): Add declaration.
	* record-btrace.c (_initialize_record_btrace): Add declaration.
	* record-full.c (_initialize_record_full): Add declaration.
	* record.c (_initialize_record): Add declaration.
	* regcache-dump.c (_initialize_regcache_dump): Add declaration.
	* regcache.c (_initialize_regcache): Add declaration.
	* reggroups.c (_initialize_reggroup): Add declaration.
	* remote-notif.c (_initialize_notif): Add declaration.
	* remote-sim.c (_initialize_remote_sim): Add declaration.
	* remote.c (_initialize_remote): Add declaration.
	* reverse.c (_initialize_reverse): Add declaration.
	* riscv-fbsd-nat.c (_initialize_riscv_fbsd_nat): Add declaration.
	* riscv-fbsd-tdep.c (_initialize_riscv_fbsd_tdep): Add declaration.
	* riscv-linux-nat.c (_initialize_riscv_linux_nat): Add declaration.
	* riscv-linux-tdep.c (_initialize_riscv_linux_tdep): Add declaration.
	* riscv-tdep.c (_initialize_riscv_tdep): Add declaration.
	* rl78-tdep.c (_initialize_rl78_tdep): Add declaration.
	* rs6000-aix-tdep.c (_initialize_rs6000_aix_tdep): Add declaration.
	* rs6000-lynx178-tdep.c (_initialize_rs6000_lynx178_tdep):
	Add declaration.
	* rs6000-nat.c (_initialize_rs6000_nat): Add declaration.
	* rs6000-tdep.c (_initialize_rs6000_tdep): Add declaration.
	* run-on-main-thread.c (_initialize_run_on_main_thread): Add declaration.
	* rust-exp.y (_initialize_rust_exp): Add declaration.
	* rx-tdep.c (_initialize_rx_tdep): Add declaration.
	* s12z-tdep.c (_initialize_s12z_tdep): Add declaration.
	* s390-linux-nat.c (_initialize_s390_nat): Add declaration.
	* s390-linux-tdep.c (_initialize_s390_linux_tdep): Add declaration.
	* s390-tdep.c (_initialize_s390_tdep): Add declaration.
	* score-tdep.c (_initialize_score_tdep): Add declaration.
	* ser-go32.c (_initialize_ser_dos): Add declaration.
	* ser-mingw.c (_initialize_ser_windows): Add declaration.
	* ser-pipe.c (_initialize_ser_pipe): Add declaration.
	* ser-tcp.c (_initialize_ser_tcp): Add declaration.
	* ser-uds.c (_initialize_ser_socket): Add declaration.
	* ser-unix.c (_initialize_ser_hardwire): Add declaration.
	* serial.c (_initialize_serial): Add declaration.
	* sh-linux-tdep.c (_initialize_sh_linux_tdep): Add declaration.
	* sh-nbsd-nat.c (_initialize_shnbsd_nat): Add declaration.
	* sh-nbsd-tdep.c (_initialize_shnbsd_tdep): Add declaration.
	* sh-tdep.c (_initialize_sh_tdep): Add declaration.
	* skip.c (_initialize_step_skip): Add declaration.
	* sol-thread.c (_initialize_sol_thread): Add declaration.
	* solib-aix.c (_initialize_solib_aix): Add declaration.
	* solib-darwin.c (_initialize_darwin_solib): Add declaration.
	* solib-dsbt.c (_initialize_dsbt_solib): Add declaration.
	* solib-frv.c (_initialize_frv_solib): Add declaration.
	* solib-svr4.c (_initialize_svr4_solib): Add declaration.
	* solib-target.c (_initialize_solib_target): Add declaration.
	* solib.c (_initialize_solib): Add declaration.
	* source-cache.c (_initialize_source_cache): Add declaration.
	* source.c (_initialize_source): Add declaration.
	* sparc-linux-nat.c (_initialize_sparc_linux_nat): Add declaration.
	* sparc-linux-tdep.c (_initialize_sparc_linux_tdep): Add declaration.
	* sparc-nat.c (_initialize_sparc_nat): Add declaration.
	* sparc-nbsd-nat.c (_initialize_sparcnbsd_nat): Add declaration.
	* sparc-nbsd-tdep.c (_initialize_sparcnbsd_tdep): Add declaration.
	* sparc-obsd-tdep.c (_initialize_sparc32obsd_tdep): Add declaration.
	* sparc-sol2-tdep.c (_initialize_sparc_sol2_tdep): Add declaration.
	* sparc-tdep.c (_initialize_sparc_tdep): Add declaration.
	* sparc64-fbsd-nat.c (_initialize_sparc64fbsd_nat): Add declaration.
	* sparc64-fbsd-tdep.c (_initialize_sparc64fbsd_tdep): Add declaration.
	* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Add declaration.
	* sparc64-linux-tdep.c (_initialize_sparc64_linux_tdep): Add declaration.
	* sparc64-nat.c (_initialize_sparc64_nat): Add declaration.
	* sparc64-nbsd-nat.c (_initialize_sparc64nbsd_nat): Add declaration.
	* sparc64-nbsd-tdep.c (_initialize_sparc64nbsd_tdep): Add declaration.
	* sparc64-obsd-nat.c (_initialize_sparc64obsd_nat): Add declaration.
	* sparc64-obsd-tdep.c (_initialize_sparc64obsd_tdep): Add declaration.
	* sparc64-sol2-tdep.c (_initialize_sparc64_sol2_tdep): Add declaration.
	* sparc64-tdep.c (_initialize_sparc64_adi_tdep): Add declaration.
	* stabsread.c (_initialize_stabsread): Add declaration.
	* stack.c (_initialize_stack): Add declaration.
	* stap-probe.c (_initialize_stap_probe): Add declaration.
	* std-regs.c (_initialize_frame_reg): Add declaration.
	* symfile-debug.c (_initialize_symfile_debug): Add declaration.
	* symfile-mem.c (_initialize_symfile_mem): Add declaration.
	* symfile.c (_initialize_symfile): Add declaration.
	* symmisc.c (_initialize_symmisc): Add declaration.
	* symtab.c (_initialize_symtab): Add declaration.
	* target.c (_initialize_target): Add declaration.
	* target-connection.c (_initialize_target_connection): Add
	declaration.
	* target-dcache.c (_initialize_target_dcache): Add declaration.
	* target-descriptions.c (_initialize_target_descriptions): Add declaration.
	* thread.c (_initialize_thread): Add declaration.
	* tic6x-linux-tdep.c (_initialize_tic6x_linux_tdep): Add declaration.
	* tic6x-tdep.c (_initialize_tic6x_tdep): Add declaration.
	* tilegx-linux-nat.c (_initialize_tile_linux_nat): Add declaration.
	* tilegx-linux-tdep.c (_initialize_tilegx_linux_tdep): Add declaration.
	* tilegx-tdep.c (_initialize_tilegx_tdep): Add declaration.
	* tracectf.c (_initialize_ctf): Add declaration.
	* tracefile-tfile.c (_initialize_tracefile_tfile): Add declaration.
	* tracefile.c (_initialize_tracefile): Add declaration.
	* tracepoint.c (_initialize_tracepoint): Add declaration.
	* tui/tui-hooks.c (_initialize_tui_hooks): Add declaration.
	* tui/tui-interp.c (_initialize_tui_interp): Add declaration.
	* tui/tui-layout.c (_initialize_tui_layout): Add declaration.
	* tui/tui-regs.c (_initialize_tui_regs): Add declaration.
	* tui/tui-stack.c (_initialize_tui_stack): Add declaration.
	* tui/tui-win.c (_initialize_tui_win): Add declaration.
	* tui/tui.c (_initialize_tui): Add declaration.
	* typeprint.c (_initialize_typeprint): Add declaration.
	* ui-style.c (_initialize_ui_style): Add declaration.
	* unittests/array-view-selftests.c (_initialize_array_view_selftests): Add declaration.
	* unittests/child-path-selftests.c (_initialize_child_path_selftests): Add declaration.
	* unittests/cli-utils-selftests.c (_initialize_cli_utils_selftests): Add declaration.
	* unittests/common-utils-selftests.c (_initialize_common_utils_selftests): Add declaration.
	* unittests/copy_bitwise-selftests.c (_initialize_copy_bitwise_utils_selftests): Add declaration.
	* unittests/environ-selftests.c (_initialize_environ_selftests): Add declaration.
	* unittests/filtered_iterator-selftests.c
	(_initialize_filtered_iterator_selftests): Add declaration.
	* unittests/format_pieces-selftests.c (_initialize_format_pieces_selftests): Add declaration.
	* unittests/function-view-selftests.c (_initialize_function_view_selftests): Add declaration.
	* unittests/help-doc-selftests.c (_initialize_help_doc_selftests): Add declaration.
	* unittests/lookup_name_info-selftests.c (_initialize_lookup_name_info_selftests): Add declaration.
	* unittests/main-thread-selftests.c
	(_initialize_main_thread_selftests): Add declaration.
	* unittests/memory-map-selftests.c (_initialize_memory_map_selftests): Add declaration.
	* unittests/memrange-selftests.c (_initialize_memrange_selftests): Add declaration.
	* unittests/mkdir-recursive-selftests.c (_initialize_mkdir_recursive_selftests): Add declaration.
	* unittests/observable-selftests.c (_initialize_observer_selftest): Add declaration.
	* unittests/offset-type-selftests.c (_initialize_offset_type_selftests): Add declaration.
	* unittests/optional-selftests.c (_initialize_optional_selftests): Add declaration.
	* unittests/parse-connection-spec-selftests.c (_initialize_parse_connection_spec_selftests): Add declaration.
	* unittests/rsp-low-selftests.c (_initialize_rsp_low_selftests): Add declaration.
	* unittests/scoped_fd-selftests.c (_initialize_scoped_fd_selftests): Add declaration.
	* unittests/scoped_mmap-selftests.c (_initialize_scoped_mmap_selftests): Add declaration.
	* unittests/scoped_restore-selftests.c (_initialize_scoped_restore_selftests): Add declaration.
	* unittests/string_view-selftests.c (_initialize_string_view_selftests): Add declaration.
	* unittests/style-selftests.c (_initialize_style_selftest): Add declaration.
	* unittests/tracepoint-selftests.c (_initialize_tracepoint_selftests): Add declaration.
	* unittests/tui-selftests.c (_initialize_tui_selftest): Add
	declaration.
	* unittests/unpack-selftests.c (_initialize_unpack_selftests): Add declaration.
	* unittests/utils-selftests.c (_initialize_utils_selftests): Add declaration.
	* unittests/vec-utils-selftests.c (_initialize_vec_utils_selftests): Add declaration.
	* unittests/xml-utils-selftests.c (_initialize_xml_utils): Add declaration.
	* user-regs.c (_initialize_user_regs): Add declaration.
	* utils.c (_initialize_utils): Add declaration.
	* v850-tdep.c (_initialize_v850_tdep): Add declaration.
	* valops.c (_initialize_valops): Add declaration.
	* valprint.c (_initialize_valprint): Add declaration.
	* value.c (_initialize_values): Add declaration.
	* varobj.c (_initialize_varobj): Add declaration.
	* vax-bsd-nat.c (_initialize_vaxbsd_nat): Add declaration.
	* vax-nbsd-tdep.c (_initialize_vaxnbsd_tdep): Add declaration.
	* vax-tdep.c (_initialize_vax_tdep): Add declaration.
	* windows-nat.c (_initialize_windows_nat): Add declaration.
	(_initialize_check_for_gdb_ini): Add declaration.
	(_initialize_loadable): Add declaration.
	* windows-tdep.c (_initialize_windows_tdep): Add declaration.
	* x86-bsd-nat.c (_initialize_x86_bsd_nat): Add declaration.
	* x86-linux-nat.c (_initialize_x86_linux_nat): Add declaration.
	* xcoffread.c (_initialize_xcoffread): Add declaration.
	* xml-support.c (_initialize_xml_support): Add declaration.
	* xstormy16-tdep.c (_initialize_xstormy16_tdep): Add declaration.
	* xtensa-linux-nat.c (_initialize_xtensa_linux_nat): Add declaration.
	* xtensa-linux-tdep.c (_initialize_xtensa_linux_tdep): Add declaration.
	* xtensa-tdep.c (_initialize_xtensa_tdep): Add declaration.

Change-Id: I13eec7e0ed2b3c427377a7bdb055cf46da64def9
2020-01-13 14:01:38 -05:00
Joel Brobecker
b811d2c292 Update copyright year range in all GDB files.
gdb/ChangeLog:

        Update copyright year range in all GDB files.
2020-01-01 10:20:53 +04:00
Christian Biesinger
4d4eaa3005 Make symbol_set_names a member function
This also renames it to make it clearer that this is not a cheap
function (to compute_and_set_names).  Also renames name to m_name
to make the implementation of the renamed function more readable.

Most of the places that access sym->m_name directly were also changed
to call linkage_name () instead, to make it clearer which name they
are accessing.

gdb/ChangeLog:

2019-12-26  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_decode_symbol): Update.
	* buildsym.c (add_symbol_to_list): Update.
	* coffread.c (process_coff_symbol): Update.
	* ctfread.c (ctf_add_enum_member_cb): Update.
	(new_symbol): Update.
	(ctf_add_var_cb): Update.
	* dwarf2read.c (fixup_go_packaging): Update.
	(dwarf2_compute_name): Update.
	(new_symbol): Update.
	* jit.c (finalize_symtab): Update.
	* language.c (language_alloc_type_symbol): Update.
	* mdebugread.c (new_symbol): Update.
	* minsyms.c (minimal_symbol_reader::record_full): Update.
	(minimal_symbol_reader::install): Update.
	* psymtab.c (print_partial_symbols): Update.
	(psymbol_hash): Update.
	(psymbol_compare): Update.
	(add_psymbol_to_bcache): Update.
	(maintenance_check_psymtabs): Update.
	* stabsread.c (define_symbol): Update.
	* symtab.c (symbol_set_names): Rename to...
	(general_symbol_info::compute_and_set_names): ...this.
	(general_symbol_info::natural_name): Update.
	(general_symbol_info::search_name): Update.
	(fixup_section): Update.
	* symtab.h (struct general_symbol_info) <name>: Rename to...
	<m_name>: ...this.
	<compute_and_set_names>: Rename from...
	(symbol_set_names): ...this.
	(SYMBOL_SET_NAMES): Remove.
	(struct symbol) <ctor>: Update.

Change-Id: I8da1f10cab4e0b89f19d5750fa4e6e2ac8d2b24f
2019-12-27 01:41:35 -03:00
Christian Biesinger
c1b5c1ebc9 Use an accessor function for general_symbol_info::language
Also renames the member variable to m_language to make code easier to read
when more functions become member functions.

I was originally hoping to eventually make m_language private (after a few
more patches), but unfortunately then it no longer counts as a POD type,
which means gdbsupport/poison.h won't let us use memset to initialize
this type, which psymtabs rely on to clear padding bytes so that bcache
can work properly.

gdb/ChangeLog:

2019-12-15  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_add_block_symbols): Update.
	(ada_collect_symbol_completion_matches): Update.
	* ax-gdb.c (gen_expr): Update.
	* block.c (block_lookup_symbol): Update.
	(block_lookup_symbol_primary): Update.
	(block_find_symbol): Update.
	* cp-namespace.c (cp_lookup_symbol_imports_or_template): Update.
	* dbxread.c (process_one_symbol): Update.
	* dictionary.c (insert_symbol_hashed): Update.
	(collate_pending_symbols_by_language): Update.
	(mdict_add_symbol): Update.
	* dwarf-index-write.c (write_psymbols): Update.
	* dwarf2read.c (fixup_go_packaging): Update.
	* findvar.c (read_var_value): Update.
	* ft32-tdep.c (ft32_skip_prologue): Update.
	* go-lang.c (go_symbol_package_name): Update.
	* language.h (scoped_switch_to_sym_language_if_auto::
	scoped_switch_to_sym_language_if_auto): Update.
	* linespec.c (find_method): Update.
	(find_label_symbols_in_block): Update.
	* mdebugread.c (parse_symbol): Update.
	* mi/mi-cmd-stack.c (list_arg_or_local): Update.
	* minsyms.c (add_minsym_to_demangled_hash_table): Update.
	(minimal_symbol_reader::install): Update.
	* moxie-tdep.c (moxie_skip_prologue): Update.
	* parse.c (parse_exp_in_context): Update.
	* psymtab.c (psymbol_name_matches): Update.
	(match_partial_symbol): Update.
	(lookup_partial_symbol): Update.
	(psymbol_hash): Update.
	(psymbol_compare): Update.
	* python/py-framefilter.c (extract_sym): Update.
	(py_print_single_arg): Update.
	* stabsread.c (define_symbol): Update.
	* stack.c (print_frame_arg): Update.
	(find_frame_funname): Update.
	(info_frame_command_core): Update.
	* symfile.c (set_initial_language): Update.
	* symtab.c (symbol_set_demangled_name): Update.
	(symbol_get_demangled_name): Update.
	(symbol_set_language): Update.
	(symbol_find_demangled_name): Update.
	(symbol_set_names): Update.
	(general_symbol_info::natural_name): Update.
	(general_symbol_info::demangled_name): Update.
	(general_symbol_info::search_name): Update.
	(symbol_matches_search_name): Update.
	(eq_symbol_entry): Update.
	(iterate_over_symbols): Update.
	(completion_list_add_symbol): Update.
	(completion_list_add_msymbol): Update.
	(completion_list_add_fields): Update.
	* symtab.h (struct general_symbol_info) <language>: New function.
	<language>: Rename to...
	<m_language>: ...this.
	(SYMBOL_LANGUAGE): Remove.
	(MSYMBOL_LANGUAGE): Remove.
	(struct symbol) <ctor>: Update.
	* xstormy16-tdep.c (xstormy16_skip_prologue): Update.

Change-Id: I6464d477457e61639c63ddf8b145e407a35c235a
2019-12-16 00:44:36 -06:00
Tom Tromey
d5a22e77b5 Remove gdbarch_bits_big_endian
From what I can tell, set_gdbarch_bits_big_endian has never been used.
That is, all architectures since its introduction have simply used the
default, which is simply check the architecture's byte-endianness.

Because this interferes with the scalar_storage_order code, this patch
removes this gdbarch setting entirely.  In some places,
type_byte_order is used rather than the plain gdbarch.

gdb/ChangeLog
2019-12-04  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (decode_constrained_packed_array)
	(ada_value_assign, value_assign_to_component): Update.
	* dwarf2loc.c (rw_pieced_value, access_memory)
	(dwarf2_compile_expr_to_ax): Update.
	* dwarf2read.c (dwarf2_add_field): Update.
	* eval.c (evaluate_subexp_standard): Update.
	* gdbarch.c, gdbarch.h: Rebuild.
	* gdbarch.sh (bits_big_endian): Remove.
	* gdbtypes.h (union field_location): Update comment.
	* target-descriptions.c (make_gdb_type): Update.
	* valarith.c (value_bit_index): Update.
	* value.c (struct value) <bitpos>: Update comment.
	(unpack_bits_as_long, modify_field): Update.
	* value.h (value_bitpos): Update comment.

Change-Id: I379b5e0c408ec8742f7a6c6b721108e73ed1b018
2019-12-04 09:31:18 -07:00
Christian Biesinger
987012b89b Replace SYMBOL_*_NAME accessors with member functions
Similar to the MSYMBOL version of this patch, improves readability
and will eventually allow making name private.

gdb/ChangeLog:

2019-11-22  Christian Biesinger  <cbiesinger@google.com>

	* ada-exp.y: Update.
	* ada-lang.c (sort_choices): Update.
	(ada_print_symbol_signature): Update.
	(resolve_subexp): Update.
	(ada_parse_renaming): Update.
	(ada_read_renaming_var_value): Update.
	(lesseq_defined_than): Update.
	(remove_extra_symbols): Update.
	(remove_irrelevant_renamings): Update.
	(ada_add_block_symbols): Update.
	(ada_collect_symbol_completion_matches): Update.
	(ada_is_renaming_symbol): Update.
	(aggregate_assign_from_choices): Update.
	(ada_evaluate_subexp): Update.
	(ada_has_this_exception_support): Update.
	(ada_is_non_standard_exception_sym): Update.
	(ada_add_exceptions_from_frame): Update.
	(ada_add_global_exceptions): Update.
	(ada_print_subexp): Update.
	* ax-gdb.c (gen_var_ref): Update.
	(gen_maybe_namespace_elt): Update.
	(gen_expr_for_cast): Update.
	(gen_expr): Update.
	* block.h: Update.
	* blockframe.c (find_pc_partial_function): Update.
	* breakpoint.c (print_breakpoint_location): Update.
	(update_static_tracepoint): Update.
	* btrace.c (ftrace_print_function_name): Update.
	(ftrace_function_switched): Update.
	* buildsym.c (find_symbol_in_list): Update.
	* c-exp.y: Update.
	* c-typeprint.c (c_print_typedef): Update.
	(c_type_print_template_args): Update.
	* cli/cli-cmds.c (edit_command): Update.
	(list_command): Update.
	(print_sal_location): Update.
	* coffread.c (patch_opaque_types): Update.
	(process_coff_symbol): Update.
	(coff_read_enum_type): Update.
	* compile/compile-c-symbols.c (c_symbol_substitution_name): Update.
	(convert_one_symbol): Update.
	(hash_symname): Update.
	(eq_symname): Update.
	* compile/compile-cplus-symbols.c (convert_one_symbol): Update.
	* compile/compile-cplus-types.c (debug_print_scope): Update.
	* compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update.
	* compile/compile-object-load.c (get_out_value_type): Update.
	* cp-namespace.c (cp_scan_for_anonymous_namespaces): Update.
	(search_symbol_list): Update.
	(cp_lookup_symbol_imports_or_template): Update.
	* cp-support.c (overload_list_add_symbol): Update.
	* ctfread.c (psymtab_to_symtab): Update.
	* dbxread.c (cp_set_block_scope): Update.
	* dictionary.c (iter_match_first_hashed): Update.
	(iter_match_next_hashed): Update.
	(insert_symbol_hashed): Update.
	(iter_match_next_linear): Update.
	* dictionary.h: Update.
	* dwarf2loc.c (func_get_frame_base_dwarf_block): Update.
	(locexpr_describe_location_piece): Update.
	(locexpr_describe_location_1): Update.
	(locexpr_generate_c_location): Update.
	(loclist_describe_location): Update.
	(loclist_generate_c_location): Update.
	* dwarf2read.c (dw2_debug_names_lookup_symbol): Update.
	(read_func_scope): Update.
	(process_enumeration_scope): Update.
	(new_symbol): Update.
	(dwarf2_const_value): Update.
	(dwarf2_symbol_mark_computed): Update.
	* eval.c (evaluate_funcall): Update.
	(evaluate_subexp_standard): Update.
	* expprint.c (print_subexp_standard): Update.
	(dump_subexp_body_standard): Update.
	* f-valprint.c (info_common_command_for_block): Update.
	* findvar.c (get_hosting_frame): Update.
	(default_read_var_value): Update.
	* go-lang.c (go_symbol_package_name): Update.
	* guile/scm-block.c (bkscm_print_block_smob): Update.
	* guile/scm-symbol.c (syscm_print_symbol_smob): Update.
	(gdbscm_symbol_name): Update.
	(gdbscm_symbol_linkage_name): Update.
	(gdbscm_symbol_print_name): Update.
	* infcall.c (get_function_name): Update.
	* infcmd.c (jump_command): Update.
	(finish_command): Update.
	* infrun.c (insert_exception_resume_breakpoint): Update.
	* linespec.c (canonicalize_linespec): Update.
	(create_sals_line_offset): Update.
	(convert_linespec_to_sals): Update.
	(complete_label): Update.
	(find_label_symbols_in_block): Update.
	* m2-typeprint.c (m2_print_typedef): Update.
	* mdebugread.c (mdebug_reg_to_regnum): Update.
	(parse_symbol): Update.
	(mylookup_symbol): Update.
	* mi/mi-cmd-stack.c (list_arg_or_local): Update.
	(list_args_or_locals): Update.
	* objc-lang.c (compare_selectors): Update.
	(info_selectors_command): Update.
	(compare_classes): Update.
	(info_classes_command): Update.
	(find_imps): Update.
	* p-typeprint.c (pascal_print_typedef): Update.
	* printcmd.c (build_address_symbolic): Update.
	(info_address_command): Update.
	(print_variable_and_value): Update.
	* python/py-framefilter.c (extract_sym): Update.
	(py_print_single_arg): Update.
	* python/py-symbol.c (sympy_str): Update.
	(sympy_get_name): Update.
	(sympy_get_linkage_name): Update.
	* python/python.c (gdbpy_rbreak): Update.
	* record-btrace.c (btrace_get_bfun_name): Update.
	(btrace_call_history): Update.
	* rust-lang.c (rust_print_typedef): Update.
	* solib-frv.c (frv_fdpic_find_canonical_descriptor): Update.
	* stabsread.c (stab_reg_to_regnum): Update.
	(define_symbol): Update.
	(read_enum_type): Update.
	(common_block_end): Update.
	(cleanup_undefined_types_1): Update.
	(scan_file_globals): Update.
	* stack.c (print_frame_arg): Update.
	(print_frame_args): Update.
	(find_frame_funname): Update.
	(info_frame_command_core): Update.
	(iterate_over_block_locals): Update.
	(print_block_frame_labels): Update.
	(do_print_variable_and_value): Update.
	(iterate_over_block_arg_vars): Update.
	(return_command): Update.
	* symmisc.c (dump_symtab_1): Update.
	(print_symbol): Update.
	* symtab.c (eq_symbol_entry): Update.
	(symbol_cache_dump): Update.
	(lookup_language_this): Update.
	(find_pc_sect_line): Update.
	(skip_prologue_sal): Update.
	(symbol_search::compare_search_syms): Update.
	(treg_matches_sym_type_name): Update.
	(search_symbols): Update.
	(print_symbol_info): Update.
	(rbreak_command): Update.
	(completion_list_add_symbol): Update.
	(find_gnu_ifunc): Update.
	(get_symbol_address): Update.
	(search_module_symbols): Update.
	(info_module_subcommand): Update.
	* symtab.h (SYMBOL_NATURAL_NAME): Remove.
	(SYMBOL_LINKAGE_NAME): Remove.
	(SYMBOL_DEMANGLED_NAME): Remove.
	(SYMBOL_PRINT_NAME): Remove.
	(SYMBOL_SEARCH_NAME): Remove.
	* tracepoint.c (set_traceframe_context): Update.
	(validate_actionline): Update.
	(collection_list::collect_symbol): Update.
	(encode_actions_1): Update.
	(info_scope_command): Update.
	(print_one_static_tracepoint_marker): Update.
	* typeprint.c (typedef_hash_table::add_template_parameters): Update.
	* valops.c (address_of_variable): Update.
	(find_overload_match): Update.
	(find_oload_champ): Update.

Change-Id: I76bdc8b44eea6876bf03af9d351f8e90cc0154b2
2019-11-22 12:05:14 -06:00
Christian Biesinger
c9d95fa3d0 Replace the MSYMBOL_*_NAME macros with member functions
Improves readability. In the future, it will also allow making the name
private, once the name setter functions become member functions.

gdb/ChangeLog:

2019-11-22  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_lookup_simple_minsym): Update.
	(ada_collect_symbol_completion_matches): Update.
	* ada-tasks.c (read_atcb): Update.
	* amd64-windows-tdep.c (amd64_skip_main_prologue): Update.
	(amd64_windows_skip_trampoline_code): Update.
	* arm-tdep.c (skip_prologue_function): Update.
	(arm_skip_stack_protector): Update.
	* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
	(arm_wince_skip_main_prologue): Update.
	* ax-gdb.c (gen_expr): Update.
	* block.c (call_site_for_pc): Update.
	* blockframe.c (find_pc_partial_function): Update.
	* breakpoint.c (set_breakpoint_location_function): Update.
	* btrace.c (ftrace_print_function_name): Update.
	(ftrace_function_switched): Update.
	* c-valprint.c (print_unpacked_pointer): Update.
	* coffread.c (coff_symfile_read): Update.
	* compile/compile-c-symbols.c (convert_symbol_bmsym): Update.
	* compile/compile-cplus-symbols.c (convert_symbol_bmsym): Update.
	* dwarf-index-write.c (write_psymbols): Update.
	* dwarf2loc.c (call_site_to_target_addr): Update.
	(func_verify_no_selftailcall): Update.
	(tailcall_dump): Update.
	(call_site_find_chain_1): Update.
	(dwarf_expr_reg_to_entry_parameter): Update.
	* elfread.c (elf_gnu_ifunc_record_cache): Update.
	* eval.c (evaluate_funcall): Update.
	(evaluate_subexp_standard): Update.
	(evaluate_subexp_for_sizeof): Update.
	* expprint.c (print_subexp_standard): Update.
	(dump_subexp_body_standard): Update.
	* frame.c (get_prev_frame_always_1): Update.
	* frv-tdep.c (frv_skip_main_prologue): Update.
	* gnu-v2-abi.c (gnuv2_value_rtti_type): Update.
	* gnu-v3-abi.c (gnuv3_rtti_type): Update.
	(gnuv3_get_typename_from_type_info): Update.
	(gnuv3_skip_trampoline): Update.
	* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update.
	* i386-tdep.c (i386_skip_main_prologue): Update.
	(i386_pe_skip_trampoline_code): Update.
	* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update.
	* infcall.c (get_function_name): Update.
	* linespec.c (minsym_found): Update.
	* linux-fork.c (info_checkpoints_command): Update.
	* m32c-tdep.c (m32c_m16c_address_to_pointer): Update.
	(m32c_m16c_pointer_to_address): Update.
	* maint.c (maintenance_translate_address): Update.
	* minsyms.c (add_minsym_to_hash_table): Update.
	(add_minsym_to_demangled_hash_table): Update.
	(lookup_minimal_symbol_mangled): Update.
	(lookup_minimal_symbol_demangled): Update.
	(lookup_minimal_symbol_linkage): Update.
	(lookup_minimal_symbol_text): Update.
	(lookup_minimal_symbol_by_pc_name): Update.
	(minimal_symbol_is_less_than): Update.
	(compact_minimal_symbols): Update.
	(build_minimal_symbol_hash_tables): Update.
	(find_solib_trampoline_target): Update.
	* mips-tdep.c (mips_stub_frame_sniffer): Update.
	(mips_skip_pic_trampoline_code): Update.
	* msp430-tdep.c (msp430_skip_trampoline_code): Update.
	* objc-lang.c (info_selectors_command): Update.
	(info_classes_command): Update.
	(find_methods): Update.
	(find_imps): Update.
	* p-valprint.c (pascal_val_print): Update.
	* ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code): Update.
	* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
	* printcmd.c (build_address_symbolic): Update.
	(info_symbol_command): Update.
	* psymtab.c (psymbol_name_matches): Update.
	(match_partial_symbol): Update.
	(lookup_partial_symbol): Update.
	(print_partial_symbols): Update.
	(sort_pst_symbols): Update.
	(maintenance_check_psymtabs): Update.
	* python/py-framefilter.c (py_print_frame): Update.
	* python/python.c (gdbpy_rbreak): Update.
	* record-btrace.c (btrace_get_bfun_name): Update.
	(btrace_call_history): Update.
	* rs6000-tdep.c (rs6000_skip_main_prologue): Update.
	(rs6000_skip_trampoline_code): Update.
	* sol-thread.c (info_cb): Update.
	* stabsread.c (scan_file_globals): Update.
	* stack.c (find_frame_funname): Update.
	(info_frame_command_core): Update.
	* symmisc.c (dump_msymbols): Update.
	* symtab.c (symbol_natural_name): Rename to..,
	(general_symbol_info::natural_name): ...this.
	(symbol_demangled_name): Rename to...
	(general_symbol_info::demangled_name): ...this.
	(symbol_search_name): Rename to...
	(general_symbol_info::search_name): ...this.
	(symbol_matches_search_name): Update.
	(find_pc_sect_line): Update.
	(skip_prologue_sal): Update.
	(search_symbols): Update.
	(print_msymbol_info): Update.
	(rbreak_command): Update.
	(completion_list_add_msymbol): Update.
	(completion_list_objc_symbol): Update.
	(get_msymbol_address): Update.
	* symtab.h (struct general_symbol_info): Add member functions
	natural_name (), linkage_name (), print_name (), demangled_name (),
	and search_name ().
	(SYMBOL_NATURAL_NAME): Update.
	(symbol_natural_name): Move to a member function on general_symbol_info.
	(SYMBOL_DEMANGLED_NAME): Update.
	(symbol_demangled_name): Move to a member function on
	general_symbol_info.
	(SYMBOL_SEARCH_NAME): Update.
	(symbol_search_name): Move to a member function on general_symbol_info.
	(MSYMBOL_NATURAL_NAME): Remove.
	(MSYMBOL_LINKAGE_NAME): Remove.
	(MSYMBOL_PRINT_NAME): Remove.
	(MSYMBOL_DEMANGLED_NAME): Remove.
	(MSYMBOL_SEARCH_NAME): Remove.
	* x86-tdep.c (x86_in_indirect_branch_thunk): Update.

Change-Id: I65aa529843a9903e174ce799037e41f954a9fcee
2019-11-22 12:05:14 -06:00
Peeter Joot
34877895ca Adjust byte order variable display/change if DW_AT_endianity is present.
- Rationale:
It is possible for compilers to indicate the desired byte order
interpretation of scalar variables using the DWARF attribute:
   DW_AT_endianity

A type flagged with this variable would typically use one of:
   DW_END_big
   DW_END_little
which instructs the debugger what the desired byte order interpretation
of the variable should be.

The GCC compiler (as of V6) has a mechanism for setting the desired byte
ordering of the fields within a structure or union.  For, example, on a
little endian target, a structure declared as:
   struct big {
       int v;
       short a[4];
   } __attribute__( ( scalar_storage_order( "big-endian" ) ) );
could be used to ensure all the structure members have a big-endian
interpretation (the compiler would automatically insert byte swap
instructions before and after respective store and load instructions).

- To reproduce
GCC V8 is required to correctly emit DW_AT_endianity DWARF attributes
in all situations when the scalar_storage_order attribute is used.

A fix for (dwarf endianity instrumentation) for GCC V6-V7 can be found
in the URL field of the following PR:
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509

- Test-case:
A new test case (testsuite/gdb.base/endianity.*) is included with this
patch.

Manual testing for mixed endianity code has also been done with GCC V8.
See:
   https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509#c4

- Observed vs. expected:

Without this change, using scalar_storage_order that doesn't match the
target, such as

struct otherendian
{
  int v;
} __attribute__( ( scalar_storage_order( "big-endian" ) ) );

would behave like the following on a little endian target:

   Breakpoint 1 at 0x401135: file endianity.c, line 41.
   (gdb) run
   Starting program: /home/pjoot/freeware/t/a.out
   Missing separate debuginfos, use: debuginfo-install glibc-2.17-292.el7.x86_64

   Breakpoint 1, main () at endianity.c:41
   41        struct otherendian o = {3};
   (gdb) n
   43        do_nothing (&o); /* START */
   (gdb) p o
   $1 = {v = 50331648}
   (gdb) p /x
   $2 = {v = 0x3000000}

whereas with this gdb enhancement we can access the variable with the user
specified endianity:

   Breakpoint 1, main () at endianity.c:41
   41        struct otherendian o = {3};
   (gdb) p o
   $1 = {v = 0}
   (gdb) n
   43        do_nothing (&o); /* START */
   (gdb) p o
   $2 = {v = 3}
   (gdb) p o.v = 4
   $3 = 4
   (gdb) p o.v
   $4 = 4
   (gdb) x/4xb &o.v
   0x7fffffffd90c: 0x00    0x00    0x00    0x04

(observe that the 4 byte int variable has a big endian representation in the
 hex dump.)

gdb/ChangeLog
2019-11-21  Peeter Joot  <peeter.joot@lzlabs.com>

	Byte reverse display of variables with DW_END_big, DW_END_little
	(DW_AT_endianity) dwarf attributes if different than the native
	byte order.
	* ada-lang.c (ada_value_binop):
	Use type_byte_order instead of gdbarch_byte_order.
	* ada-valprint.c (printstr):
	(ada_val_print_string):
	* ada-lang.c (value_pointer):
	(ada_value_binop):
	Use type_byte_order instead of gdbarch_byte_order.
	* c-lang.c (c_get_string):
	Use type_byte_order instead of gdbarch_byte_order.
	* c-valprint.c (c_val_print_array):
	Use type_byte_order instead of gdbarch_byte_order.
	* cp-valprint.c (cp_print_class_member):
	Use type_byte_order instead of gdbarch_byte_order.
	* dwarf2loc.c (rw_pieced_value):
	Use type_byte_order instead of gdbarch_byte_order.
	* dwarf2read.c (read_base_type): Handle DW_END_big,
	DW_END_little
	* f-lang.c (f_get_encoding):
	Use type_byte_order instead of gdbarch_byte_order.
	* findvar.c (default_read_var_value):
	Use type_byte_order instead of gdbarch_byte_order.
	* gdbtypes.c (check_types_equal):
	Require matching TYPE_ENDIANITY_NOT_DEFAULT if set.
	(recursive_dump_type): Print TYPE_ENDIANITY_BIG,
	and TYPE_ENDIANITY_LITTLE if set.
	(type_byte_order): new function.
	* gdbtypes.h (TYPE_ENDIANITY_NOT_DEFAULT): New macro.
	(struct main_type) <flag_endianity_not_default>:
	New field.
	(type_byte_order): New function.
	* infcmd.c (default_print_one_register_info):
	Use type_byte_order instead of gdbarch_byte_order.
	* p-lang.c (pascal_printstr):
	Use type_byte_order instead of gdbarch_byte_order.
	* p-valprint.c (pascal_val_print):
	Use type_byte_order instead of gdbarch_byte_order.
	* printcmd.c (print_scalar_formatted):
	Use type_byte_order instead of gdbarch_byte_order.
	* solib-darwin.c (darwin_current_sos):
	Use type_byte_order instead of gdbarch_byte_order.
	* solib-svr4.c (solib_svr4_r_ldsomap):
	Use type_byte_order instead of gdbarch_byte_order.
	* stap-probe.c (stap_modify_semaphore):
	Use type_byte_order instead of gdbarch_byte_order.
	* target-float.c (target_float_same_format_p):
	Use type_byte_order instead of gdbarch_byte_order.
	* valarith.c (scalar_binop):
	(value_bit_index):
	Use type_byte_order instead of gdbarch_byte_order.
	* valops.c (value_cast):
	Use type_byte_order instead of gdbarch_byte_order.
	* valprint.c (generic_emit_char):
	(generic_printstr):
	(val_print_string):
	Use type_byte_order instead of gdbarch_byte_order.
	* value.c (unpack_long):
	(unpack_bits_as_long):
	(unpack_value_bitfield):
	(modify_field):
	(pack_long):
	(pack_unsigned_long):
	Use type_byte_order instead of gdbarch_byte_order.
	* findvar.c (unsigned_pointer_to_address):
	(signed_pointer_to_address):
	(unsigned_address_to_pointer):
	(address_to_signed_pointer):
	(default_read_var_value):
	(default_value_from_register):
	Use type_byte_order instead of gdbarch_byte_order.
	* gnu-v3-abi.c (gnuv3_make_method_ptr):
	Use type_byte_order instead of gdbarch_byte_order.
	* riscv-tdep.c (riscv_print_one_register_info):
	Use type_byte_order instead of gdbarch_byte_order.

gdb/testsuite/ChangeLog
2019-11-21  Peeter Joot  <peeter.joot@lzlabs.com>

	* gdb.base/endianity.c: New test.
	* gdb.base/endianity.exp: New file.

Change-Id: I4bd98c1b4508c2d7c5a5dbb15d7b7b1cb4e667e2
2019-11-21 11:48:59 -07:00
Tom Tromey
992a70401e Constify command_line_input
This changes command_line_input to return a "const char *", which is
appropriate because the memory is owned by command_line_input.  Then
it fixes up the users.

I looked at making command_line_input transfer ownership to its caller
instead, but this is complicated due to the way read_next_line is
called, so I decided against it.

Tested by rebuilding.

gdb/ChangeLog
2019-11-08  Tom Tromey  <tromey@adacore.com>

	* top.c (read_command_file): Update.
	(command_line_input): Make return type const.
	* python/py-gdb-readline.c: Update.
	* linespec.c (decode_line_2): Update.
	* defs.h (command_line_input): Make return type const.
	* cli/cli-script.c (read_next_line): Make return type const.
	* ada-lang.c (get_selections): Update.

Change-Id: I27e6c9477fd1005ab5b16e0d337e4c015b6e6248
2019-11-08 06:59:36 -07:00
Tom Tromey
91ae903f89 Remove la_get_string member
The la_get_string member of struct language_defn was intended to
provide a way to fetch string data from a "string" object in a
language-dependent way.  However, it turned out that this was never
needed, and was only ever implemented for C.  This patch removes the
language hook entirely.

gdb/ChangeLog
2019-11-05  Tom Tromey  <tom@tromey.com>

	* rust-lang.c (rust_language_defn): Update.
	* python/py-value.c (valpy_string): Call c_get_string.
	* p-lang.c (pascal_language_defn): Update.
	* opencl-lang.c (opencl_language_defn): Update.
	* objc-lang.c (objc_language_defn): Update.
	* m2-lang.c (m2_language_defn): Update.
	* language.c (unknown_language_defn, auto_language_defn): Update.
	(default_get_string): Remove.
	* guile/scm-value.c (gdbscm_value_to_string): Use c_get_string.
	* go-lang.c (go_language_defn): Update.
	* f-lang.c (f_language_defn): Update.
	* d-lang.c (d_language_defn): Update.
	* c-lang.c (c_language_defn, cplus_language_defn)
	(asm_language_defn, minimal_language_defn): Update.
	* ada-lang.c (ada_language_defn): Update.
	* language.h (struct language_defn) <la_get_string>: Remove.
	(LA_GET_STRING): Remove.
	(default_get_string): Don't declare.

Change-Id: Ia97763dfe34dc8ecb46587f7a651f8af9be8fdbd
2019-11-05 15:36:28 -07:00
Simon Marchi
de93309a38 Clean up ada-lang.h
This patch cleans up ada-lang.h:

- Some functions just don't exist anymore, remove their declaration
- Some functions are implemented in ada-lang.c and only used there, make
  them static to that file.

I moved some functions higher in the file to avoid having to
forward-declare them, but the implementations are unchanged.

gdb/ChangeLog:

	* ada-lang.h (GROW_VECT): Move to ada-lang.c.
	(grow_vect): Remove declaration.
	(ada_type_of_array): Remove declaration.
	(ada_update_initial_language): Remove declaration.
	(ada_fold_name): Remove declaration.
	(ada_fill_in_ada_prototype): Remove declaration.
	(user_select_syms): Remove declaration.
	(get_selections): Remove declaration.
	(ada_tag_type): Remove declaration.
	(ada_value_tag): Remove declaration.
	(ada_is_others_clause): Remove declaration.
	(ada_in_variant): Remove declaration.
	(ada_value_struct_elt): Remove declaration.
	(ada_attribute_name): Remove declaration.
	(ada_system_address_type): Remove declaration.
	* ada-lang.c (ada_watch_location_expression): Make static.
	(GROW_VECT): Move here from ada-lang.h.
	(grow_vect): Make static.
	(ada_update_initial_language): Make static.
	(ada_fold_name): Make static.
	(ada_type_of_array): Make static.
	(encoded_ordered_before): Move up.
	(sort_choices): Move up.
	(print_signatures): Move up.
	(ada_print_symbol_signature): Move up.
	(get_selections): Move up and make static.
	(user_select_syms): Move up and make static.
	(ada_value_struct_elt): Move up and make static.
	(ada_tag_type): Make static.
	(ada_value_tag): Make static.
	(ada_is_others_clause): Make static.
	(ada_in_variant): Make static.
	(ada_attribute_name): Make static.

Change-Id: If0d46ba87d6585ab674c87244068a19e84718fc9
2019-10-29 17:52:24 -04:00
Simon Marchi
cdc46a9ff4 Remove unused includes in ada-*.c files
include-what-you-use reports:

../../../src/binutils-gdb/gdb/ada-lang.c should remove these lines:
- #include <sys/stat.h>  // lines 43-43
- #include <map>  // lines 66-66
- #include "c-lang.h"  // lines 33-33
- #include "demangle.h"  // lines 23-23
- #include "dictionary.h"  // lines 47-47
- #include "gdbsupport/gdb_vecs.h"  // lines 53-53
- #include "psymtab.h"  // lines 58-58

../../../src/binutils-gdb/gdb/ada-lang.c should remove these lines:
- #include <sys/stat.h>  // lines 43-43
- #include <map>  // lines 66-66
- #include "c-lang.h"  // lines 33-33
- #include "demangle.h"  // lines 23-23
- #include "dictionary.h"  // lines 47-47
- #include "gdbsupport/gdb_vecs.h"  // lines 53-53
- #include "psymtab.h"  // lines 58-58

../../../src/binutils-gdb/gdb/ada-valprint.c should remove these lines:
- #include "c-lang.h"  // lines 31-31
- #include "demangle.h"  // lines 26-26
- #include "infcall.h"  // lines 32-32
- #include "objfiles.h"  // lines 33-33
- #include "symtab.h"  // lines 22-22

Remove these includes.  Adding an include for gdbarch.h in
ada-valprint.c was necessary, because gdbarch_byte_order wouldn't be
found anymore.

gdb/ChangeLog:

	* ada-lang.c: Remove includes.
	* ada-typeprint.c: Remove includes.
	* ada-valprint.c: Remove includes.

Change-Id: I07c2f2237ef0ed5fd9aa855d33711d780794fce2
2019-10-29 17:52:15 -04:00
Tom de Vries
30baf67b65 [gdb] Fix more typos in comments (2)
Fix typos in comments.  NFC.

Tested on x86_64-linux.

gdb/ChangeLog:

2019-10-26  Tom de Vries  <tdevries@suse.de>

	* aarch64-linux-tdep.c: Fix typos in comments.
	* aarch64-tdep.c: Same.
	* ada-lang.c: Same.
	* amd64-nat.c: Same.
	* arc-tdep.c: Same.
	* arch/aarch64-insn.c: Same.
	* block.c: Same.
	* breakpoint.h: Same.
	* btrace.h: Same.
	* c-varobj.c: Same.
	* cli/cli-decode.c: Same.
	* cli/cli-script.c: Same.
	* cli/cli-utils.h: Same.
	* coff-pe-read.c: Same.
	* coffread.c: Same.
	* compile/compile-cplus-symbols.c: Same.
	* compile/compile-object-run.c: Same.
	* completer.c: Same.
	* corelow.c: Same.
	* cp-support.c: Same.
	* demangle.c: Same.
	* dwarf-index-write.c: Same.
	* dwarf2-frame.c: Same.
	* dwarf2-frame.h: Same.
	* eval.c: Same.
	* frame-base.h: Same.
	* frame.h: Same.
	* gdbcmd.h: Same.
	* gdbtypes.h: Same.
	* gnu-nat.c: Same.
	* guile/scm-objfile.c: Same.
	* i386-tdep.c: Same.
	* i386-tdep.h: Same.
	* infcall.c: Same.
	* infcall.h: Same.
	* linux-nat.c: Same.
	* m68k-tdep.c: Same.
	* macroexp.c: Same.
	* memattr.c: Same.
	* mi/mi-cmd-disas.c: Same.
	* mi/mi-getopt.h: Same.
	* mi/mi-main.c: Same.
	* minsyms.c: Same.
	* nat/aarch64-sve-linux-sigcontext.h: Same.
	* objfiles.h: Same.
	* ppc-linux-nat.c: Same.
	* ppc-linux-tdep.c: Same.
	* ppc-tdep.h: Same.
	* progspace.h: Same.
	* prologue-value.h: Same.
	* python/py-evtregistry.c: Same.
	* python/py-instruction.h: Same.
	* record-btrace.c: Same.
	* record-full.c: Same.
	* remote.c: Same.
	* rs6000-tdep.c: Same.
	* ser-tcp.c: Same.
	* sol-thread.c: Same.
	* sparc-sol2-tdep.c: Same.
	* sparc64-tdep.c: Same.
	* stabsread.c: Same.
	* symfile.c: Same.
	* symtab.h: Same.
	* target.c: Same.
	* tracepoint.c: Same.
	* tui/tui-data.h: Same.
	* tui/tui-io.c: Same.
	* tui/tui-win.c: Same.
	* tui/tui.c: Same.
	* unittests/rsp-low-selftests.c: Same.
	* user-regs.h: Same.
	* utils.c: Same.
	* utils.h: Same.
	* valarith.c: Same.
	* valops.c: Same.
	* valprint.c: Same.
	* valprint.h: Same.
	* value.c: Same.
	* value.h: Same.
	* varobj.c: Same.
	* x86-nat.h: Same.
	* xtensa-tdep.c: Same.

gdb/gdbserver/ChangeLog:

2019-10-26  Tom de Vries  <tdevries@suse.de>

	* linux-aarch64-low.c: Fix typos in comments.
	* linux-arm-low.c: Same.
	* linux-low.c: Same.
	* linux-ppc-low.c: Same.
	* proc-service.c: Same.
	* regcache.h: Same.
	* server.c: Same.
	* tracepoint.c: Same.
	* win32-low.c: Same.

gdb/stubs/ChangeLog:

2019-10-26  Tom de Vries  <tdevries@suse.de>

	* ia64vms-stub.c: Fix typos in comments.
	* m32r-stub.c: Same.
	* m68k-stub.c: Same.
	* sh-stub.c: Same.

gdb/testsuite/ChangeLog:

2019-10-26  Tom de Vries  <tdevries@suse.de>

	* gdb.base/bigcore.c: Fix typos in comments.
	* gdb.base/ctf-ptype.c: Same.
	* gdb.base/long_long.c: Same.
	* gdb.dwarf2/dw2-op-out-param.S: Same.
	* gdb.python/py-evthreads.c: Same.
	* gdb.reverse/i387-stack-reverse.c: Same.
	* gdb.trace/tfile.c: Same.
	* lib/compiler.c: Same.
	* lib/compiler.cc: Same.

Change-Id: I8573d84a577894270179ae30f46c48d806fc1beb
2019-10-26 09:55:32 +02:00
Tom de Vries
85102364b2 [gdb] Fix more typos in comments
Fix typos in comments.  NFC.

Tested on x86_64-linux.

gdb/ChangeLog:

2019-10-18  Tom de Vries  <tdevries@suse.de>

	* aarch64-tdep.c: Fix typos in comments.
	* ada-lang.c: Same.
	* ada-tasks.c: Same.
	* alpha-tdep.c: Same.
	* alpha-tdep.h: Same.
	* amd64-nat.c: Same.
	* amd64-windows-tdep.c: Same.
	* arc-tdep.c: Same.
	* arc-tdep.h: Same.
	* arch-utils.c: Same.
	* arm-nbsd-tdep.c: Same.
	* arm-tdep.c: Same.
	* ax-gdb.c: Same.
	* blockframe.c: Same.
	* btrace.c: Same.
	* c-varobj.c: Same.
	* coff-pe-read.c: Same.
	* coffread.c: Same.
	* cris-tdep.c: Same.
	* darwin-nat.c: Same.
	* dbxread.c: Same.
	* dcache.c: Same.
	* disasm.c: Same.
	* dtrace-probe.c: Same.
	* dwarf-index-write.c: Same.
	* dwarf2-frame-tailcall.c: Same.
	* dwarf2-frame.c: Same.
	* dwarf2read.c: Same.
	* eval.c: Same.
	* exceptions.c: Same.
	* fbsd-tdep.c: Same.
	* findvar.c: Same.
	* frame.c: Same.
	* frv-tdep.c: Same.
	* gnu-v3-abi.c: Same.
	* go32-nat.c: Same.
	* h8300-tdep.c: Same.
	* hppa-tdep.c: Same.
	* i386-linux-tdep.c: Same.
	* i386-tdep.c: Same.
	* ia64-libunwind-tdep.c: Same.
	* ia64-tdep.c: Same.
	* infcmd.c: Same.
	* infrun.c: Same.
	* linespec.c: Same.
	* linux-nat.c: Same.
	* linux-thread-db.c: Same.
	* machoread.c: Same.
	* mdebugread.c: Same.
	* mep-tdep.c: Same.
	* mn10300-tdep.c: Same.
	* namespace.c: Same.
	* objfiles.c: Same.
	* opencl-lang.c: Same.
	* or1k-tdep.c: Same.
	* osabi.c: Same.
	* ppc-linux-nat.c: Same.
	* ppc-linux-tdep.c: Same.
	* ppc-sysv-tdep.c: Same.
	* printcmd.c: Same.
	* procfs.c: Same.
	* record-btrace.c: Same.
	* record-full.c: Same.
	* remote-fileio.c: Same.
	* remote.c: Same.
	* rs6000-tdep.c: Same.
	* s12z-tdep.c: Same.
	* score-tdep.c: Same.
	* ser-base.c: Same.
	* ser-go32.c: Same.
	* skip.c: Same.
	* sol-thread.c: Same.
	* solib-svr4.c: Same.
	* solib.c: Same.
	* source.c: Same.
	* sparc-nat.c: Same.
	* sparc-sol2-tdep.c: Same.
	* sparc-tdep.c: Same.
	* sparc64-tdep.c: Same.
	* stabsread.c: Same.
	* stack.c: Same.
	* symfile.c: Same.
	* symtab.c: Same.
	* target-descriptions.c: Same.
	* target-float.c: Same.
	* thread.c: Same.
	* utils.c: Same.
	* valops.c: Same.
	* valprint.c: Same.
	* value.c: Same.
	* varobj.c: Same.
	* windows-nat.c: Same.
	* xcoffread.c: Same.
	* xstormy16-tdep.c: Same.
	* xtensa-tdep.c: Same.

Change-Id: I5175f1b107bfa4e1cdd4a3361ccb4739e53c75c4
2019-10-18 02:48:08 +02:00
Andrew Burgess
0dc327459b gdb: Remove vec.{c,h} and update code to not include vec.h
Removes vec.c and vec.h from the source tree, and remove all the
remaining includes of vec.h.  There should be no user visible changes
after this commit.

I did have a few issues rebuilding GDB after applying this patch due
to cached dependencies, I found that running this command in the build
directory resolved my build issues without requiring a 'make clean':

    rm -fr gdb/gdbserver/gdbsupport/.deps/

gdb/ChangeLog:

	* Makefile.in: Remove references to vec.h and vec.c.
	* aarch64-tdep.c: No longer include vec.h.
	* ada-lang.c: Likewise.
	* ada-lang.h: Likewise.
	* arm-tdep.c: Likewise.
	* ax.h: Likewise.
	* breakpoint.h: Likewise.
	* charset.c: Likewise.
	* cp-support.h: Likewise.
	* dtrace-probe.c: Likewise.
	* dwarf2read.c: Likewise.
	* extension.h: Likewise.
	* gdb_bfd.c: Likewise.
	* gdbsupport/gdb_vecs.h: Likewise.
	* gdbsupport/vec.c: Remove.
	* gdbsupport/vec.h: Remove.
	* gdbthread.h: Likewise.
	* guile/scm-type.c: Likewise.
	* inline-frame.c: Likewise.
	* machoread.c: Likewise.
	* memattr.c: Likewise.
	* memrange.h: Likewise.
	* namespace.h: Likewise.
	* nat/linux-btrace.h: Likewise.
	* osdata.c: Likewise.
	* parser-defs.h: Likewise.
	* progspace.h: Likewise.
	* python/py-type.c: Likewise.
	* record-btrace.c: Likewise.
	* rust-exp.y: Likewise.
	* solib-target.c: Likewise.
	* stap-probe.c: Likewise.
	* target-descriptions.c: Likewise.
	* target-memory.c: Likewise.
	* target.h: Likewise.
	* varobj.c: Likewise.
	* varobj.h: Likewise.
	* xml-support.h: Likewise.

gdb/gdbserver/ChangeLog:

	* Makefile.in: Remove references to vec.c.

Change-Id: I0c91d7170bf1b5e992a387fcd9fe4f2abe343bb5
2019-10-15 21:31:55 +01:00
Tom Tromey
37f6a7f456 Add $_ada_exception convenience variable
This adds the $_ada_exception convenience variable.  It is set by the
Ada exception catchpoints, and holds the address of the exception
currently being thrown.  This is useful because it allows more
fine-grained filtering of exceptions than is possible using the
existing "catch" syntax.

This also simplifies Ada catchpoints somewhat; because the catchpoint
must now carry the "kind", it's possible to remove many helper
functions.

gdb/ChangeLog
2019-10-02  Tom Tromey  <tromey@adacore.com>

	* NEWS: Add $_ada_exception entry.
	* ada-lang.c (struct ada_catchpoint): Add constructor.
	<m_kind>: New member.
	(allocate_location_exception, re_set_exception): Remove
	"ex" parameter.
	(should_stop_exception): Compute $_ada_exception.
	(check_status_exception, print_it_exception)
	(print_one_exception, print_mention_exception): Remove
	"ex" parameter.
	(allocate_location_catch_exception, re_set_catch_exception)
	(check_status_exception, print_it_catch_exception)
	(print_one_catch_exception, print_mention_catch_exception)
	(print_recreate_catch_exception)
	(allocate_location_catch_exception_unhandled)
	(re_set_catch_exception_unhandled)
	(check_status_exception, print_it_catch_exception_unhandled)
	(print_one_catch_exception_unhandled)
	(print_mention_catch_exception_unhandled)
	(print_recreate_catch_exception_unhandled)
	(allocate_location_catch_assert, re_set_catch_assert)
	(check_status_assert, print_it_catch_assert)
	(print_one_catch_assert, print_mention_catch_assert)
	(print_recreate_catch_assert)
	(allocate_location_catch_handlers, re_set_catch_handlers)
	(check_status_handlers, print_it_catch_handlers)
	(print_one_catch_handlers, print_mention_catch_handlers)
	(print_recreate_catch_handlers): Remove.
	(create_ada_exception_catchpoint): Update.
	(initialize_ada_catchpoint_ops): Update.

gdb/doc/ChangeLog
2019-10-02  Tom Tromey  <tromey@adacore.com>

	* gdb.texinfo (Set Catchpoints, Convenience Vars): Document
	$_ada_exception.

gdb/testsuite/ChangeLog
2019-10-02  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/catch_ex_std.exp: Add $_ada_exception test.
2019-10-02 09:53:17 -06:00
Tom Tromey
fccf9de11f Back out earlier Ada exception change
commit 2ff0a9473 (Fix "catch exception" with dynamic linking) changed
how ada-lang.c creates expressions to determine if an exception
catchpoint should stop.

That patch is no longer needed now that copy relocations are handled
more directly.

gdb/ChangeLog
2019-10-02  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_lookup_simple_minsyms): Remove.
	(create_excep_cond_exprs): Simplify exception string computation.
	(ada_exception_catchpoint_cond_string): Likewise.
2019-10-02 09:53:17 -06:00
Tom Tromey
4b610737f0 Handle copy relocations
In ELF, if a data symbol is defined in a shared library and used by
the main program, it will be subject to a "copy relocation".  In this
scenario, the main program has a copy of the symbol in question, and a
relocation that tells ld.so to copy the data from the shared library.
Then the symbol in the main program is used to satisfy all references.

This patch changes gdb to handle this scenario.  Data symbols coming
from ELF shared libraries get a special flag that indicates that the
symbol's address may be subject to copy relocation.

I looked briefly into handling copy relocations by looking at the
actual relocations in the main program, but this seemed difficult to
do with BFD.

Note that no caching is done here.  Perhaps this could be changed if
need be; I wanted to avoid possible problems with either objfile
lifetimes and changes, or conflicts with the long-term (vapor-ware)
objfile splitting project.

gdb/ChangeLog
2019-10-02  Tom Tromey  <tromey@adacore.com>

	* symmisc.c (dump_msymbols): Don't use MSYMBOL_VALUE_ADDRESS.
	* ada-lang.c (lesseq_defined_than): Handle
	LOC_STATIC.
	* dwarf2read.c (dwarf2_per_objfile): Add can_copy
	parameter.
	(dwarf2_has_info): Likewise.
	(new_symbol): Set maybe_copied on symbol when
	appropriate.
	* dwarf2read.h (dwarf2_per_objfile): Add can_copy
	parameter.
	<can_copy>: New member.
	* elfread.c (record_minimal_symbol): Set maybe_copied
	on symbol when appropriate.
	(elf_symfile_read): Update call to dwarf2_has_info.
	* minsyms.c (lookup_minimal_symbol_linkage): New
	function.
	* minsyms.h (lookup_minimal_symbol_linkage): Declare.
	* symtab.c (get_symbol_address, get_msymbol_address):
	New functions.
	* symtab.h (get_symbol_address, get_msymbol_address):
	Declare.
	(SYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_ADDRESS): Handle
	maybe_copied.
	(struct symbol, struct minimal_symbol) <maybe_copied>:
	New member.
2019-10-02 09:53:17 -06:00
Tom Tromey
9d636d67e0 Use styled_string in more places
This adds more uses of styled_string, changing gdb to style some
output that was previously left unstyled.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* stack.c (print_frame, info_frame_command_core): Use
	styled_string.
	* linux-thread-db.c (try_thread_db_load_1)
	(try_thread_db_load_from_pdir_1): Use styled_string.
	* auto-load.c (file_is_auto_load_safe, execute_script_contents)
	(auto_load_section_scripts, info_auto_load_local_gdbinit)
	(maybe_print_unsupported_script_warning)
	(maybe_print_script_not_found_warning): Use styled_string.
	* ada-lang.c (user_select_syms): Use styled_string.
2019-10-01 15:12:40 -06:00
Tom Tromey
7f6aba03b9 Introduce metadata style
This introduces a new "metadata" style and changes many places in gdb
to use it.  The idea here is to let the user distinguish gdb output
from output that (conceptually at least) comes directly from the
inferior.  The newly-styled category includes text that gdb
traditionally surrounds in "<...>", like "<unavailable>".

I only added a single test for this.  In many cases this output is
difficult to test.  Also, while developing this errors in the
implementation of the new printf formats showed up as regressions.

gdb/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* p-lang.c (pascal_printstr): Use metadata style.
	* value.c (show_convenience): Use metadata style.
	* valprint.c (valprint_check_validity, val_print_optimized_out)
	(val_print_not_saved, val_print_unavailable)
	(val_print_invalid_address, generic_val_print, val_print)
	(value_check_printable, val_print_array_elements): Use metadata
	style.
	* ui-out.h (class ui_out) <field_fmt>: New overload.
	<do_field_fmt>: Add style parameter.
	* ui-out.c (ui_out::field_fmt): New overload.
	* typeprint.c (type_print_unknown_return_type)
	(val_print_not_allocated, val_print_not_associated): Use metadata
	style.
	* tui/tui-out.h (class tui_ui_out) <do_field_fmt>: Add style
	parameter.
	* tui/tui-out.c (tui_ui_out::do_field_fmt): Update.
	* tracepoint.c (tvariables_info_1): Use metadata style.
	* stack.c (print_frame_arg, print_frame_info, print_frame)
	(info_frame_command_core): Use metadata style.
	* skip.c (info_skip_command): Use metadata style.
	* rust-lang.c (rust_print_enum): Use metadata style.
	* python/py-prettyprint.c (print_stack_unless_memory_error): Use
	metadata style.
	* python/py-framefilter.c (py_print_single_arg): Use metadata
	style.
	* printcmd.c (do_one_display, print_variable_and_value): Use
	metadata style.
	* p-valprint.c (pascal_val_print)
	(pascal_object_print_value_fields): Use metadata style.
	* p-typeprint.c (pascal_type_print_base): Use metadata style.
	* mi/mi-out.h (class mi_ui_out) <do_field_fmt>: Add style
	parameter.
	* mi/mi-out.c (mi_ui_out::do_field_fmt): Update.
	* m2-valprint.c (m2_print_long_set): Use metadata style.
	* m2-typeprint.c (m2_print_type): Use metadata style.
	* infcmd.c (print_return_value_1): Use metadata style.
	* gnu-v3-abi.c (print_one_vtable): Use metadata style.
	* f-valprint.c (info_common_command_for_block): Use metadata
	style.
	* f-typeprint.c (f_type_print_base): Use metadata style.
	* expprint.c (print_subexp_standard): Use metadata style.
	* cp-valprint.c (cp_print_value_fields): Use metadata style.
	* cli/cli-style.h (class cli_style_option): Add constructor.
	(metadata_style): Declare.
	* cli/cli-style.c (metadata_style): New global.
	(_initialize_cli_style): Register metadata style.
	* cli-out.h (class cli_ui_out) <do_field_fmt>: Add style
	parameter.
	* cli-out.c (cli_ui_out::do_field_fmt): Update.
	* c-typeprint.c (c_type_print_base_struct_union)
	(c_type_print_base_1): Use metadata style.
	* breakpoint.c (watchpoint_value_print)
	(print_one_breakpoint_location): Use metadata style.
	* break-catch-syscall.c (print_one_catch_syscall): Use metadata
	style.
	* break-catch-sig.c (signal_catchpoint_print_one): Use metadata
	style.
	* ada-valprint.c (val_print_packed_array_elements, printstr)
	(print_field_values, ada_val_print_ref, ada_val_print): Use
	metadata style.
	* ada-typeprint.c (print_array_type, ada_print_type): Use metadata
	style.
	* ada-tasks.c (print_ada_task_info, info_task): Use metadata
	style.
	* ada-lang.c (user_select_syms): Use metadata style.

gdb/testsuite/ChangeLog
2019-10-01  Tom Tromey  <tom@tromey.com>

	* lib/gdb-utils.exp (style): Handle "metadata" argument.
	* gdb.base/style.exp: Add metadata style test.
2019-10-01 15:12:40 -06:00
Christian Biesinger
f945dedfd3 Make ada_decode not use a static buffer
This makes it safer to use in general, and also allows using it on a
background thread in the future.

Inspired by tromey's patch at:
1226cbdfa4
(however, implemented in a different way)

gdb/ChangeLog:

2019-09-23  Christian Biesinger  <cbiesinger@google.com>

	* ada-exp.y (write_object_remaining): Update.
	* ada-lang.c (ada_decode): Return a std::string instead of a char*
	and eliminate the static buffer.
	(ada_decode_symbol): Update.
	(ada_la_decode): Update.
	(ada_sniff_from_mangled_name): Update.
	(is_valid_name_for_wild_match): Update.
	(ada_lookup_name_info::matches): Update and simplify.
	(name_matches_regex): Update.
	(ada_add_global_exceptions): Update.
	* ada-lang.h (ada_decode): Update signature.
	* ada-varobj.c (ada_varobj_describe_simple_array_child): Update.
	* dwarf-index-write.c (debug_names::insert): Update.
2019-09-23 13:36:34 -05:00
Christian Biesinger
491144b5e2 Change boolean options to bool instead of int
This is for add_setshow_boolean_cmd as well as the gdb::option interface.

gdb/ChangeLog:

2019-09-17  Christian Biesinger  <cbiesinger@google.com>

	* ada-lang.c (ada_ignore_descriptive_types_p): Change to bool.
	(print_signatures): Likewise.
	(trust_pad_over_xvs): Likewise.
	* arch/aarch64-insn.c (aarch64_debug): Likewise.
	* arch/aarch64-insn.h (aarch64_debug): Likewise.
	* arm-linux-nat.c (arm_apcs_32): Likewise.
	* arm-linux-tdep.c (arm_apcs_32): Likewise.
	* arm-nbsd-nat.c (arm_apcs_32): Likewise.
	* arm-tdep.c (arm_debug): Likewise.
	(arm_apcs_32): Likewise.
	* auto-load.c (debug_auto_load): Likewise.
	(auto_load_gdb_scripts): Likewise.
	(global_auto_load): Likewise.
	(auto_load_local_gdbinit): Likewise.
	(auto_load_local_gdbinit_loaded): Likewise.
	* auto-load.h (global_auto_load): Likewise.
	(auto_load_local_gdbinit): Likewise.
	(auto_load_local_gdbinit_loaded): Likewise.
	* breakpoint.c (disconnected_dprintf): Likewise.
	(breakpoint_proceeded): Likewise.
	(automatic_hardware_breakpoints): Likewise.
	(always_inserted_mode): Likewise.
	(target_exact_watchpoints): Likewise.
	(_initialize_breakpoint): Update.
	* breakpoint.h (target_exact_watchpoints): Change to bool.
	* btrace.c (maint_btrace_pt_skip_pad): Likewise.
	* cli/cli-cmds.c (trace_commands): Likewise.
	* cli/cli-cmds.h (trace_commands): Likewise.
	* cli/cli-decode.c (add_setshow_boolean_cmd): Change int* argument
	to bool*.
	* cli/cli-logging.c (logging_overwrite): Change to bool.
	(logging_redirect): Likewise.
	(debug_redirect): Likewise.
	* cli/cli-option.h (option_def) <boolean>: Change return type to bool*.
	(struct boolean_option_def) <get_var_address_cb_>: Change return type
	to bool.
	<boolean_option_def>: Update.
	(struct flag_option_def): Change default type of Context to bool
	from int.
	<flag_option_def>: Change return type of var_address_cb_ to bool*.
	* cli/cli-setshow.c (do_set_command): Cast to bool* instead of int*.
	(get_setshow_command_value_string): Likewise.
	* cli/cli-style.c (cli_styling): Change to bool.
	(source_styling): Likewise.
	* cli/cli-style.h (source_styling): Likewise.
	(cli_styling): Likewise.
	* cli/cli-utils.h (struct qcs_flags) <quiet, cont, silent>: Change
	to bool.
	* command.h (var_types): Update comment.
	(add_setshow_boolean_cmd): Change int* var argument to bool*.
	* compile/compile-cplus-types.c (debug_compile_cplus_types): Change to
	bool.
	(debug_compile_cplus_scopes): Likewise.
	* compile/compile-internal.h (compile_debug): Likewise.
	* compile/compile.c (compile_debug): Likewise.
	(struct compile_options) <raw>: Likewise.
	* cp-support.c (catch_demangler_crashes): Likewise.
	* cris-tdep.c (usr_cmd_cris_version_valid): Likewise.
	(usr_cmd_cris_dwarf2_cfi): Likewise.
	* csky-tdep.c (csky_debug): Likewise.
	* darwin-nat.c (enable_mach_exceptions): Likewise.
	* dcache.c (dcache_enabled_p): Likewise.
	* defs.h (info_verbose): Likewise.
	* demangle.c (demangle): Likewise.
	(asm_demangle): Likewise.
	* dwarf-index-cache.c (debug_index_cache): Likewise.
	* dwarf2-frame.c (dwarf2_frame_unwinders_enabled_p): Likewise.
	* dwarf2-frame.h (dwarf2_frame_unwinders_enabled_p): Likewise.
	* dwarf2read.c (check_physname): Likewise.
	(use_deprecated_index_sections): Likewise.
	(dwarf_always_disassemble): Likewise.
	* eval.c (overload_resolution): Likewise.
	* event-top.c (set_editing_cmd_var): Likewise.
	(exec_done_display_p): Likewise.
	* event-top.h (set_editing_cmd_var): Likewise.
	(exec_done_display_p): Likewise.
	* exec.c (write_files): Likewise.
	* fbsd-nat.c (debug_fbsd_lwp): Likewise
	(debug_fbsd_nat): Likewise.
	* frame.h (struct frame_print_options) <print_raw_frame_arguments>:
	Likewise.
	(struct set_backtrace_options) <backtrace_past_main>: Likewise.
	<backtrace_past_entry> Likewise.
	* gdb-demangle.h (demangle): Likewise.
	(asm_demangle): Likewise.
	* gdb_bfd.c (bfd_sharing): Likewise.
	* gdbcore.h (write_files): Likewise.
	* gdbsupport/common-debug.c (show_debug_regs): Likewise.
	* gdbsupport/common-debug.h (show_debug_regs): Likewise.
	* gdbthread.h (print_thread_events): Likewise.
	* gdbtypes.c (opaque_type_resolution): Likewise.
	(strict_type_checking): Likewise.
	* gnu-nat.c (gnu_debug_flag): Likewise.
	* guile/scm-auto-load.c (auto_load_guile_scripts): Likewise.
	* guile/scm-param.c (pascm_variable): Add boolval.
	(add_setshow_generic): Update.
	(pascm_param_value): Update.
	(pascm_set_param_value_x): Update.
	* hppa-tdep.c (hppa_debug): Change to bool..
	* infcall.c (may_call_functions_p): Likewise.
	(coerce_float_to_double_p): Likewise.
	(unwind_on_signal_p): Likewise.
	(unwind_on_terminating_exception_p): Likewise.
	* infcmd.c (startup_with_shell): Likewise.
	* inferior.c (print_inferior_events): Likewise.
	* inferior.h (startup_with_shell): Likewise.
	(print_inferior_events): Likewise.
	* infrun.c (step_stop_if_no_debug): Likewise.
	(detach_fork): Likewise.
	(debug_displaced): Likewise.
	(disable_randomization): Likewise.
	(non_stop): Likewise.
	(non_stop_1): Likewise.
	(observer_mode): Likewise.
	(observer_mode_1): Likewise.
	(set_observer_mode): Update.
	(sched_multi): Change to bool.
	* infrun.h (debug_displaced): Likewise.
	(sched_multi): Likewise.
	(step_stop_if_no_debug): Likewise.
	(non_stop): Likewise.
	(disable_randomization): Likewise.
	* linux-tdep.c (use_coredump_filter): Likewise.
	(dump_excluded_mappings): Likewise.
	* linux-thread-db.c (auto_load_thread_db): Likewise.
	(check_thread_db_on_load): Likewise.
	* main.c (captured_main_1): Update.
	* maint-test-options.c (struct test_options_opts) <flag_opt, xx1_opt,
	xx2_opt, boolean_opt>: Change to bool.
	* maint-test-settings.c (maintenance_test_settings_boolean): Likewise.
	* maint.c (maintenance_profile_p): Likewise.
	(per_command_time): Likewise.
	(per_command_space): Likewise.
	(per_command_symtab): Likewise.
	* memattr.c (inaccessible_by_default): Likewise.
	* mi/mi-main.c (mi_async): Likewise.
	(mi_async_1): Likewise.
	* mips-tdep.c (mips64_transfers_32bit_regs_p): Likewise.
	* nat/fork-inferior.h (startup_with_shell): Likewise.
	* nat/linux-namespaces.c (debug_linux_namespaces): Likewise.
	* nat/linux-namespaces.h (debug_linux_namespaces): Likewise.
	* nios2-tdep.c (nios2_debug): Likewise.
	* or1k-tdep.c (or1k_debug): Likewise.
	* parse.c (parser_debug): Likewise.
	* parser-defs.h (parser_debug): Likewise.
	* printcmd.c (print_symbol_filename): Likewise.
	* proc-api.c (procfs_trace): Likewise.
	* python/py-auto-load.c (auto_load_python_scripts): Likewise.
	* python/py-param.c (union parmpy_variable): Add "bool boolval" field.
	(set_parameter_value): Update.
	(add_setshow_generic): Update.
	* python/py-value.c (copy_py_bool_obj): Change argument from int*
	to bool*.
	* python/python.c (gdbpy_parameter_value): Cast to bool* instead of
	int*.
	* ravenscar-thread.c (ravenscar_task_support): Change to bool.
	* record-btrace.c (record_btrace_target::store_registers): Update.
	* record-full.c (record_full_memory_query): Change to bool.
	(record_full_stop_at_limit): Likewise.
	* record-full.h (record_full_memory_query): Likewise.
	* remote-notif.c (notif_debug): Likewise.
	* remote-notif.h (notif_debug): Likewise.
	* remote.c (use_range_stepping): Likewise.
	(interrupt_on_connect): Likewise.
	(remote_break): Likewise.
	* ser-tcp.c (tcp_auto_retry): Likewise.
	* ser-unix.c (serial_hwflow): Likewise.
	* skip.c (debug_skip): Likewise.
	* solib-aix.c (solib_aix_debug): Likewise.
	* spu-tdep.c (spu_stop_on_load_p): Likewise.
	(spu_auto_flush_cache_p): Likewise.
	* stack.c (struct backtrace_cmd_options) <full, no_filters, hide>:
	Likewise.
	(struct info_print_options) <quiet>: Likewise.
	* symfile-debug.c (debug_symfile): Likewise.
	* symfile.c (auto_solib_add): Likewise.
	(separate_debug_file_debug): Likewise.
	* symfile.h (auto_solib_add): Likewise.
	(separate_debug_file_debug): Likewise.
	* symtab.c (basenames_may_differ): Likewise.
	(struct filename_partial_match_opts) <dirname, basename>: Likewise.
	(struct info_print_options) <quiet, exclude_minsyms>: Likewise.
	(struct info_types_options) <quiet>: Likewise.
	* symtab.h (demangle): Likewise.
	(basenames_may_differ): Likewise.
	* target-dcache.c (stack_cache_enabled_1): Likewise.
	(code_cache_enabled_1): Likewise.
	* target.c (trust_readonly): Likewise.
	(may_write_registers): Likewise.
	(may_write_memory): Likewise.
	(may_insert_breakpoints): Likewise.
	(may_insert_tracepoints): Likewise.
	(may_insert_fast_tracepoints): Likewise.
	(may_stop): Likewise.
	(auto_connect_native_target): Likewise.
	(target_stop_and_wait): Update.
	(target_async_permitted): Change to bool.
	(target_async_permitted_1): Likewise.
	(may_write_registers_1): Likewise.
	(may_write_memory_1): Likewise.
	(may_insert_breakpoints_1): Likewise.
	(may_insert_tracepoints_1): Likewise.
	(may_insert_fast_tracepoints_1): Likewise.
	(may_stop_1): Likewise.
	* target.h (target_async_permitted): Likewise.
	(may_write_registers): Likewise.
	(may_write_memory): Likewise.
	(may_insert_breakpoints): Likewise.
	(may_insert_tracepoints): Likewise.
	(may_insert_fast_tracepoints): Likewise.
	(may_stop): Likewise.
	* thread.c (struct info_threads_opts) <show_global_ids>: Likewise.
	(make_thread_apply_all_options_def_group): Change argument from int*
	to bool*.
	(thread_apply_all_command): Update.
	(print_thread_events): Change to bool.
	* top.c (confirm): Likewise.
	(command_editing_p): Likewise.
	(history_expansion_p): Likewise.
	(write_history_p): Likewise.
	(info_verbose): Likewise.
	* top.h (confirm): Likewise.
	(history_expansion_p): Likewise.
	* tracepoint.c (disconnected_tracing): Likewise.
	(circular_trace_buffer): Likewise.
	* typeprint.c (print_methods): Likewise.
	(print_typedefs): Likewise.
	* utils.c (debug_timestamp): Likewise.
	(sevenbit_strings): Likewise.
	(pagination_enabled): Likewise.
	* utils.h (sevenbit_strings): Likewise.
	(pagination_enabled): Likewise.
	* valops.c (overload_resolution): Likewise.
	* valprint.h (struct value_print_options) <prettyformat_arrays,
	prettyformat_structs, vtblprint, unionprint, addressprint, objectprint,
	stop_print_at_null, print_array_indexes, deref_ref, static_field_print,
	pascal_static_field_print, raw, summary, symbol_print, finish_print>:
	Likewise.
	* windows-nat.c (new_console): Likewise.
	(cygwin_exceptions): Likewise.
	(new_group): Likewise.
	(debug_exec): Likewise.
	(debug_events): Likewise.
	(debug_memory): Likewise.
	(debug_exceptions): Likewise.
	(useshell): Likewise.
	* windows-tdep.c (maint_display_all_tib): Likewise.
	* xml-support.c (debug_xml): Likewise.
2019-09-18 09:35:12 +09:00
Tom Tromey
b054970d54 Change map_matching_symbols to take a lookup_name_info
This patch further simplifies the map_matching_symbols callback, by
having it take a lookup_name_info rather than a plain string.

gdb/ChangeLog
2019-09-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (add_nonlocal_symbols): Combine calls to
	map_matching_symbols.  Update.
	* dwarf2read.c (dw2_map_matching_symbols): Update.
	* psymtab.c (match_partial_symbol): Change type; update.
	(psym_map_matching_symbols): Likewise.
	* symfile-debug.c (debug_qf_map_matching_symbols): Change
	type; update.
	* symfile.h (struct quick_symbol_functions)
	<map_matching_symbols>: Change "name" to be a lookup_name_info.
	Remove "match".
2019-09-10 08:30:45 -06:00
Tom Tromey
6969f124b9 Change iterate_over_symbols to return bool
This changes iterate_over_symbols to return a bool.  This allows it to
be reused in another context in a subsequent patch.

gdb/ChangeLog
2019-09-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_iterate_over_symbols): Return bool.
	* language.h (struct language_defn) <la_iterate_over_symbols>:
	Return bool.
	* symtab.c (iterate_over_symbols): Return bool.
	* symtab.h (iterate_over_symbols): Return bool.
2019-09-10 08:30:45 -06:00
Tom Tromey
199b4314ef Change map_matching_symbols to take a symbol_found_callback_ftype
This changes map_matching_symbols to take a
symbol_found_callback_ftype, rather than separate callback and data
parameters.  This enables a future patch to clean up some existing
code so that it can more readily be shared.

gdb/ChangeLog
2019-09-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (aux_add_nonlocal_symbols): Change type.
	(add_nonlocal_symbols): Update.
	* dwarf2read.c (dw2_map_matching_symbols): Change type.
	* psymtab.c (map_block, psym_map_matching_symbols): Change type.
	* symfile-debug.c (debug_qf_map_matching_symbols): Change type.
	* symfile.h (struct quick_symbol_functions) <map_matching_symbols>:
	Change type of "callback".  Remove "data".
2019-09-10 08:30:45 -06:00
Tom Tromey
4e962e74e4 Handle biased types
In Ada, the programmer can request that a range type with a non-zero
base be stored in the minimal number of bits required for the range.
This is done by biasing the values; so, for example, a range of -7..-4
may be stored as two bits with a bias of -7.

This patch implements this for gdb.  It is done by adding a bias to
struct range_bounds and then adjusting a few spots to handle this.

The test case is written to use -fgnat-encodings=minimal, but a future
compiler patch will change the compiler to emit DW_AT_GNU_bias with
-fgnat-encodings=gdb.  It seemed good to get the gdb patch in first.

Tested on x86-64 Fedora 29; plus a variety of targets using AdaCore's
internal test suite.

gdb/ChangeLog
2019-09-03  Tom Tromey  <tromey@adacore.com>

	* ada-valprint.c (ada_val_print_num): Don't recurse for range
	types.
	(has_negatives): Unbias a range type bound.
	* dwarf2read.c (read_subrange_type): Handle DW_AT_GNU_bias.
	* gdbtypes.c (operator==): Handle new field.
	(create_range_type): Add "bias" parameter.
	(create_static_range_type, resolve_dynamic_range): Update.
	* gdbtypes.h (struct range_bounds) <bias>: New member.
	(create_range_type): Add bias parameter.
	* printcmd.c (print_scalar_formatted): Unbias range types.
	* value.c (unpack_long): Unbias range types.
	(pack_long): Bias range types.

gdb/testsuite/ChangeLog
2019-09-03  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/bias.exp: New file.
	* gdb.ada/bias/bias.adb: New file.
	* gdb.ada/print_chars.exp: Add regression test.
	* gdb.ada/print_chars/foo.adb (My_Character): New type.
	(MC): New variable.
2019-09-03 10:20:40 -06:00
Tom Tromey
272560b577 Fix bug with character enumeration literal
gnat encodes character enumeration literals using a few different
schemes.  The gnat compiler documented the "QU" and "QW" encodings,
but failed to document that a simpler encoding was used for certain
characters.

This patch updates gdb to handle this simple Q encoding.  Note that
wide character literals are still not handled.

gdb/ChangeLog
2019-08-15  Tom Tromey  <tromey@adacore.com>

	* ada-exp.y (convert_char_literal): Handle "Q%c" encoding.
	* ada-lang.c (ada_enum_name): Likewise.

gdb/testsuite/ChangeLog
2019-08-15  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/char_enum.exp: Add regression tests.
	* gdb.ada/char_enum/foo.adb (Char_Enum_Type): Use '_'
	and '0'.
	(Char, Gchar): Update.
	* gdb.ada/char_enum/pck.ads (Global_Enum_Type): Use '+'.
2019-08-15 13:42:31 -06:00
Tom Tromey
021887d88a Use obstack_strdup more
This changes gdb to use obstack_strdup when appropriate, rather than
the wordier obstack_copy0.

gdb/ChangeLog
2019-08-06  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (SYMNAME_ALLOC, process_xcoff_symbol): Use
	obstack_strdup.
	* typeprint.c (typedef_hash_table::find_global_typedef): Use
	obstack_strdup.
	* symfile.c (allocate_compunit_symtab): Use obstack_strdup.
	* stabsread.c (common_block_start): Use obstack_strdup.
	* objfiles.c (set_objfile_main_name, objfile): Use
	obstack_strdup.
	* namespace.c (add_using_directive): Use obstack_strdup.
	* mdebugread.c (parse_symbol, parse_type): Use obstack_strdup.
	* jit.c (finalize_symtab): Use obstack_strdup.
	* dwarf2read.c (fixup_go_packaging, dwarf2_physname)
	(guess_partial_die_structure_name, partial_die_info::fixup)
	(dwarf2_name): Use obstack_strdup.
	* coffread.c (coff_read_struct_type, coff_read_enum_type): Use
	obstack_strdup.
	* c-exp.y (scan_macro_expansion): Use obstack_strdup.
	* buildsym.c (buildsym_compunit::end_symtab_with_blockvector): Use
	obstack_strdup.
	* ada-lang.c (ada_decode_symbol): Use obstack_strdup.
2019-08-06 20:08:48 -06:00
Philippe Waroquiers
590042fc45 Make first and last lines of 'command help documentation' consistent.
With this patch, the help docs now respect 2 invariants:
  * The first line of a command help is terminated by a '.' character.
  * The last character of a command help is not a newline character.

Note that the changes for the last invariant were done by Tom, as part of :
 [PATCH] Remove trailing newlines from help text
 https://sourceware.org/ml/gdb-patches/2019-06/msg00050.html
but some occurrences have been re-introduced since then.

Some help docs had to be rephrased/restructured to respect the above
invariants.

Before this patch, print_doc_line was printing the first line
of a command help documentation, but stopping at the first '.'
or ',' character.

This was giving inconsistent results :
  * The first line of command helps was sometimes '.' terminated,
    sometimes not.
  * The first line of command helps was not always designed to be
    readable/understandable/unambiguous when stopping at the first
    '.' or ',' character.

This e.g. created the following inconsistencies/problems:
< catch exception -- Catch Ada exceptions
< catch handlers -- Catch Ada exceptions
< catch syscall -- Catch system calls by their names
< down-silently -- Same as the `down' command
while the new help is:
> catch exception -- Catch Ada exceptions, when raised.
> catch handlers -- Catch Ada exceptions, when handled.
> catch syscall -- Catch system calls by their names, groups and/or numbers.
> down-silently -- Same as the `down' command, but does not print anything.

Also, the command help doc should not be terminated by a newline
character, but this was not respected by all commands.
The cli-option -OPT framework re-introduced some occurences.
So, the -OPT build help framework was changed to not output newlines at the
end of %OPTIONS% replacement.

This patch changes the help documentations to ensure the 2 invariants
given above.

It implied to slightly rephrase or restructure some help docs.

Based on the above invariants, print_doc_line (called by
'apropos' and 'help' commands to print the first line of a command
help) now outputs the full first line of a command help.

This all results in a lot of small changes in the produced help docs.
There are less code changes than changes in the help docs, as a lot
of docs are produced by some code (e.g. the remote packet usage settings).

gdb/ChangeLog
2019-08-07  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* cli/cli-decode.h (print_doc_line): Add for_value_prefix argument.
	* cli/cli-decode.c (print_doc_line): Likewise.  It now prints
	the full first line, except when FOR_VALUE_PREFIX.  In this case,
	the trailing '.' is not output, and the first character is uppercased.
	(print_help_for_command): Update call to print_doc_line.
	(print_doc_of_command): Likewise.
	* cli/cli-setshow.c (deprecated_show_value_hack): Likewise.
	* cli/cli-option.c (append_indented_doc): Do not append newline.
	(build_help_option): Append newline after first appended_indented_doc
	only if a second call is done.
	(build_help): Append 2 new lines before each option, except the first
	one.
	* compile/compile.c (_initialize_compile): Add new lines after
	%OPTIONS%, when not at the end of the help.
	Change help doc or code
	producing the help doc to respect the invariants.
	* maint-test-options.c (_initialize_maint_test_options): Likewise.
	Also removed the new line after 'Options:', as all other commands
	do not put an empty line between 'Options:' and the first option.
	* printcmd.c (_initialize_printcmd): Likewise.
	* stack.c (_initialize_stack): Likewise.
	* interps.c (interpreter_exec_cmd): Fix "Usage:" line that was
	incorrectly telling COMMAND is optional.
	* ada-lang.c (_initialize_ada_language): Change help doc or code
	producing the help doc to respect the invariants.
	* ada-tasks.c (_initialize_ada_tasks): Likewise.
	* breakpoint.c (_initialize_breakpoint): Likewise.
	* cli/cli-cmds.c (_initialize_cli_cmds): Likewise.
	* cli/cli-logging.c (_initialize_cli_logging): Likewise.
	* cli/cli-setshow.c (_initialize_cli_setshow): Likewise.
	* cli/cli-style.c (cli_style_option::add_setshow_commands,
	_initialize_cli_style): Likewise.
	* corelow.c (core_target_info): Likewise.
	* dwarf-index-cache.c (_initialize_index_cache): Likewise.
	* dwarf2read.c (_initialize_dwarf2_read): Likewise.
	* filesystem.c (_initialize_filesystem): Likewise.
	* frame.c (_initialize_frame): Likewise.
	* gnu-nat.c (add_task_commands): Likewise.
	* infcall.c (_initialize_infcall): Likewise.
	* infcmd.c (_initialize_infcmd): Likewise.
	* interps.c (_initialize_interpreter): Likewise.
	* language.c (_initialize_language): Likewise.
	* linux-fork.c (_initialize_linux_fork): Likewise.
	* maint-test-settings.c (_initialize_maint_test_settings): Likewise.
	* maint.c (_initialize_maint_cmds): Likewise.
	* memattr.c (_initialize_mem): Likewise.
	* printcmd.c (_initialize_printcmd): Likewise.
	* python/lib/gdb/function/strfns.py (_MemEq, _StrLen, _StrEq,
	_RegEx): Likewise.
	* ravenscar-thread.c (_initialize_ravenscar): Likewise.
	* record-btrace.c (_initialize_record_btrace): Likewise.
	* record-full.c (_initialize_record_full): Likewise.
	* record.c (_initialize_record): Likewise.
	* regcache-dump.c (_initialize_regcache_dump): Likewise.
	* regcache.c (_initialize_regcache): Likewise.
	* remote.c (add_packet_config_cmd, init_remote_threadtests,
	_initialize_remote): Likewise.
	* ser-tcp.c (_initialize_ser_tcp): Likewise.
	* serial.c (_initialize_serial): Likewise.
	* skip.c (_initialize_step_skip): Likewise.
	* source.c (_initialize_source): Likewise.
	* stack.c (_initialize_stack): Likewise.
	* symfile.c (_initialize_symfile): Likewise.
	* symtab.c (_initialize_symtab): Likewise.
	* target-descriptions.c (_initialize_target_descriptions): Likewise.
	* top.c (init_main): Likewise.
	* tracefile-tfile.c (tfile_target_info): Likewise.
	* tracepoint.c (_initialize_tracepoint): Likewise.
	* tui/tui-win.c (_initialize_tui_win): Likewise.
	* utils.c (add_internal_problem_command): Likewise.
	* valprint.c (value_print_option_defs): Likewise.

gdb/testsuite/ChangeLog
2019-08-07  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* gdb.base/style.exp: Update tests for help doc new invariants.
	* gdb.base/help.exp: Likewise.
2019-08-07 00:04:33 +02:00
Alexandre Oliva
ca683e3a86 support Ada EH ABI v1
A new pair of hooks used by Ada exception handlers, for correct
release of reraised exception occurrences, involves the introduction
of new v1 symbols that GDB should use when available.  The older, v0
ABI remains available in newer runtimes for bootstrapping purposes
only.


for  gdb/ChangeLog

	* ada-lang.c (exception_support_info_v0): Renamed from...
	(default_exception_support_info): ... this.  Create new
	definition for v1.
	(ada_has_this_exception_support): Look up catch_handlers_sym.
	(ada_exception_support_info_sniffer): Try v0 after default.
2019-08-02 15:40:32 -03:00
Tom Tromey
381befeedf Rename field_int to field_signed
This renames ui_out::field_int to field_signed, and field_fmt_int to
field_fmt_signed; and changes the type of the "value" parameter from
int to LONGEST.

Tested by the buildbot.

gdb/ChangeLog
2019-07-17  Tom Tromey  <tromey@adacore.com>

	* ui-out.h (class ui_out) <field_signed, field_fmt_signed,
	do_field_signed>: Rename.  Change type of "value".
	* ui-out.c (ui_out::field_signed): Rename from field_int.
	Change type of "value".
	(ui_out::field_fmt_signed): Rename from field_fmt_int.  Change
	type of "value".
	* tui/tui-out.h (class tui_ui_out) <do_field_signed>: Rename from
	do_field_int.  Change type of "value".
	* tui/tui-out.c (tui_ui_out::do_field_signed): Rename from
	do_field_int.  Change type of "value".
	* tracepoint.c (trace_status_mi, tfind_1)
	(print_one_static_tracepoint_marker): Update.
	* thread.c (print_thread_info_1, print_selected_thread_frame):
	Update.
	* stack.c (print_frame, print_frame_info): Update.
	* spu-tdep.c (info_spu_signal_command, info_spu_dma_cmdlist):
	Update.
	* source.c (print_source_lines_base): Update.
	* skip.c (info_skip_command): Update.
	* record-btrace.c (btrace_ui_out_decode_error)
	(btrace_call_history_src_line): Update.
	* python/py-framefilter.c (py_print_single_arg, py_print_frame):
	Update.
	* progspace.c (print_program_space): Update.
	* mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines): Update.
	* mi/mi-out.h (class mi_ui_out) <do_field_signed>: Rename from
	do_field_int.  Change type of "value".
	* mi/mi-out.c (mi_ui_out::do_table_begin)
	(mi_ui_out::do_table_header): Update.
	(mi_ui_out::do_field_signed): Rename from do_field_int.  Change
	type of "value".
	* mi/mi-main.c (mi_cmd_thread_list_ids, print_one_inferior)
	(mi_cmd_data_list_changed_registers, output_register)
	(mi_cmd_data_read_memory, mi_load_progress)
	(mi_cmd_trace_frame_collected): Update.
	* mi/mi-interp.c (mi_on_normal_stop_1, mi_output_solib_attribs):
	Update.
	* mi/mi-cmd-var.c (print_varobj, mi_cmd_var_create)
	(mi_cmd_var_delete, mi_cmd_var_info_num_children)
	(mi_cmd_var_list_children, varobj_update_one): Update.
	* mi/mi-cmd-stack.c (mi_cmd_stack_info_depth)
	(mi_cmd_stack_list_args, list_arg_or_local): Update.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_file): Update.
	* inferior.c (print_inferior): Update.
	* gdb_bfd.c (print_one_bfd): Update.
	* disasm.c (gdb_pretty_print_disassembler::pretty_print_insn):
	Update.
	* darwin-nat-info.c (darwin_debug_regions_recurse): Update.
	* cli-out.h (class cli_ui_out) <do_field_signed>: Rename from
	do_field_int.  Change type of "value".
	* cli-out.c (cli_ui_out::do_field_signed): Rename from
	do_field_int.  Change type of "value".
	* breakpoint.c (watchpoint_check, print_breakpoint_location)
	(print_one_breakpoint_location, print_it_catch_fork)
	(print_one_catch_fork, print_it_catch_vfork)
	(print_one_catch_vfork, print_it_catch_solib)
	(print_it_catch_exec, print_it_ranged_breakpoint)
	(print_mention_watchpoint, print_mention_masked_watchpoint)
	(bkpt_print_it, update_static_tracepoint): Update.
	* break-catch-throw.c (print_it_exception_catchpoint): Update.
	* break-catch-syscall.c (print_it_catch_syscall): Update.
	* ada-tasks.c (print_ada_task_info): Update.
	* ada-lang.c (print_it_exception, print_mention_exception):
	Update.
2019-07-17 10:34:05 -06:00
Tom Tromey
f06f1252b0 Change Ada catchpoints to be bp_catchpoint
Like Pedro's earlier patches to change catchpoint to be of type
bp_catchpoint, this changes the Ada catchpoints to follow.

Tested on x86-64 Fedora 29.

gdb/ChangeLog
2019-07-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.h (is_ada_exception_catchpoint): Declare.
	* breakpoint.c (init_ada_exception_breakpoint): Register as
	bp_catchpoint.
	(print_one_breakpoint_location, print_one_breakpoint): Use
	is_ada_exception_catchpoint.
	* ada-lang.c (class ada_catchpoint_location): Pass
	bp_loc_software_breakpoint to bp_location constructor.
	(is_ada_exception_catchpoint): New function.

gdb/testsuite/ChangeLog
2019-07-10  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/mi_ex_cond.exp: Update expected results.
	* gdb.ada/mi_catch_ex_hand.exp: Update expected results.
	* gdb.ada/mi_catch_ex.exp: Update expected results.
	* gdb.ada/mi_catch_assert.exp: Update expected results.
	* gdb.ada/catch_ex.exp (catch_exception_info)
	(catch_exception_entry, catch_assert_entry)
	(catch_unhandled_entry): Update.
	* gdb.ada/catch_assert_if.exp: Update expected results.
2019-07-10 14:48:53 -06:00
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.
2019-07-09 07:45:38 -06:00
Tom Tromey
65392b3edd Remove is_a_field_of_this from ada_lookup_symbol
All callers of ada_lookup_symbol pass NULL for the
"is_a_field_of_this" parameter, so remove it.

gdb/ChangeLog
2019-07-01  Tom Tromey  <tromey@adacore.com>

	* ada-exp.y (find_primitive_type): Update.
	* ada-lang.h (ada_lookup_symbol): Update.
	* ada-lang.c (ada_lookup_symbol): Remove "is_a_field_of_this"
	parameter.
	(ada_lookup_encoded_symbol, ada_lookup_symbol_nonlocal): Update.
2019-07-01 06:29:04 -06:00
Tom Tromey
680e1beed3 Fix crash when setting breakpoint condition
gdb could crash when setting a breakpoint condition on a breakpoint
when using the Ada language.  The problem occurred because the
ada_evaluate_subexp would try to evaluate the array to compute its
attributes, but evaluating can't really be done at this time.

This patch fixes the problem by arranging not to try to evaluate in
EVAL_AVOID_SIDE_EFFECTS mode when computing an attribute.

Tested on x86-64 Fedora 29.  Because this is Ada-specific, and because
Joel approved it internally, I am checking it in.

gdb/ChangeLog
2019-06-19  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_evaluate_subexp) <case OP_ATR_FIRST>: Handle
	EVAL_AVOID_SIDE_EFFECTS specially.

gdb/testsuite/ChangeLog
2019-06-19  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/length_cond.exp: New file.
	* gdb.ada/length_cond/length_cond.adb: New file.
	* gdb.ada/length_cond/pck.adb: New file.
	* gdb.ada/length_cond/pck.ads: New file.
2019-06-19 06:06:02 -06:00
Tom Tromey
cafb34387d Remove unnecessary casts of NULL
I noticed some unnecessary casts of NULL.  This removes all the
unnecessary ones, leaving only ones where we must ensure that NULL has
pointer type for passing through varargs.

I removed a couple of useless casts of 0 that I noticed while writing
this.

Tested by rebuilding.

gdb/ChangeLog
2019-06-16  Tom Tromey  <tom@tromey.com>

	* valops.c (value_cast, value_slice): Remove unnecessary cast.
	* breakpoint.c (stopin_command, stopat_command)
	(until_break_command, decode_location_default): Remove unnecessary
	cast.
	* utils.c (subset_compare): Remove unnecessary cast.
	* ada-lang.c (ada_update_initial_language): Remove unnecessary
	cast.
	* linespec.c (decode_line_with_last_displayed): Remove unnecessary
	cast.
	* infcmd.c (path_command): Remove unnecessary cast.
	* coffread.c (decode_type): Remove unnecessary cast.
	* xcoffread.c (read_xcoff_symtab): Remove unnecessary cast.
	* mipsread.c (mipscoff_symfile_read): Remove unnecessary cast.
	* tui/tui-stack.c (tui_show_locator_content)
	(tui_show_frame_info): Remove unnecessary cast.
	* tui/tui-win.c (tui_scroll_forward_command)
	(tui_scroll_backward_command, tui_set_focus, tui_set_win_height)
	(parse_scrolling_args): Remove unnecessary cast.
	* tui/tui-data.c (init_win_info, tui_del_window)
	(tui_free_window, tui_del_data_windows, tui_free_data_content)
	(free_content_elements): Remove unnecessary cast.
	* tui/tui-windata.c (tui_first_data_item_displayed): Remove
	unnecessary cast.
	* tui/tui-source.c (tui_set_source_content)
	(tui_vertical_source_scroll): Remove unnecessary cast.
	* tui/tui-layout.c (tui_default_win_height): Remove unnecessary
	cast.
	* tui/tui-io.c (tui_initialize_io): Remove unnecessary cast.
	* tui/tui-regs.c (tui_display_registers_from)
	(tui_display_register): Remove unnecessary cast.
	* tui/tui-wingeneral.c (tui_refresh_win, tui_delete_win)
	(tui_unhighlight_win, tui_highlight_win, tui_make_window)
	(make_visible): Remove unnecessary cast.
	* tui/tui-winsource.c (tui_erase_source_content)
	(tui_update_breakpoint_info, tui_set_exec_info_content): Remove
	unnecessary cast.
	* ax-gdb.c (agent_command_1): Remove unnecessary cast.
	* cli/cli-setshow.c (cmd_show_list): Remove unnecessary cast.
	* stabsread.c (read_type, read_array_type, read_range_type):
	Remove unnecessary cast.
	* mdebugread.c (mdebug_build_psymtabs): Remove unnecessary cast.
	(parse_symbol, parse_type, upgrade_type, parse_external)
	(parse_partial_symbols, psymtab_to_symtab_1, cross_ref): Remove
	unnecessary cast.
	* gdb_bfd.c (gdb_bfd_map_section): Remove unnecessary cast.
2019-06-16 09:59:03 -06:00
Tom Tromey
f411722cbc Allow re-assigning to convenience variables
In Ada mode, re-assigning an array of a different size to a
convenience variable will cause an error:

    (gdb) set lang ada
    (gdb) set $v := "abc"
    (gdb) set $v := "abcd"
    cannot assign arrays of different length

However, this does not really make sense -- instead, it should always
be possible to overwrite a convenience variable.

This patch fixes this bug.

This was reviewed off-list by Joel.  I'm checking it in.

gdb/ChangeLog
2019-06-14  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_evaluate_subexp) <case BINOP_ASSIGN>: Always
	allow assignment to an internalvar.

gdb/testsuite/ChangeLog
2019-06-14  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/set_wstr.exp: Add reassignment test.
2019-06-14 08:06:16 -06:00
Tom Tromey
9bf7038bb2 Update help text in ada-lang.c
I noticed that the "catch assert" help text erroneously claimed to
accept an argument, and while fixing this I went ahead and added
"Usage" text and made other minor updates to the commands in
ada-lang.c.

Tested on x86-64 Fedora 29.

gdb/ChangeLog
2019-06-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (_initialize_ada_language): Update help text.
2019-06-10 08:16:54 -06:00
Pedro Alves
b02f78f928 Introduce and use make_unique_xstrdup
Adds an utility function to make it shorter to write the common case
of wrapping an xstrdup with a unique_xmalloc_ptr, and uses it
throughout.

Note: I tried to put this in common/common-utils.h near skip_spaces,
etc. but that is included in common/common-defs.h before
common/gdb_unique_ptr.h is included, so it would fail to compile
because gdb::unique_xmalloc_ptr isn't defined at that point yet.  I
tried moving the gdb_unique_ptr.h inclusion before common-utils.h, but
that doesn't work because gdb_unique_ptr.h depends on common-utils.h
for xfree.

gdb/ChangeLog:
2019-06-04  Pedro Alves  <palves@redhat.com>

	* common/gdb_unique_ptr.h (make_unique_xstrdup): New.

	* ada-lang.c (catch_ada_completer): Use make_unique_xstrdup.
	* breakpoint.c (condition_completer): Likewise.
	* cli/cli-dump.c (scan_expression): Likewise.
	* common/filestuff.c (mkdir_recursive): Likewise.
	* common/gdb_tilde_expand.c (gdb_tilde_expand_up)
	* common/pathstuff.c (gdb_realpath, gdb_realpath_keepfile)
	(gdb_abspath): Likewise.
	* compile/compile-cplus-types.c
	(compile_cplus_instance::decl_name): Likewise.
	* completer.c (complete_explicit_location):
	(signal_completer, reg_or_group_completer_1): Likewise.
	* cp-support.c (cp_remove_params_if_any): Likewise.
	* fbsd-tdep.c (fbsd_core_vnode_path): Likewise.
	* guile/scm-safe-call.c (gdbscm_safe_eval_string): Likewise.
	* infcmd.c (strip_bg_char): Likewise.
	* linespec.c (copy_token_string): Likewise.
	* mi/mi-main.c (output_cores): Likewise.
	* psymtab.c (psymtab_search_name):
	* symfile.c (test_set_ext_lang_command): Likewise.
	* target.c (target_fileio_read_stralloc): Likewise.
	* tui/tui-regs.c (tui_reggroup_completer): Likewise.
	* value.c (complete_internalvar): Likewise.

gdb/gdbserver/ChangeLog:
2019-06-04  Pedro Alves  <palves@redhat.com>

	* server.c (captured_main): Use make_unique_xstrdup.
2019-06-04 22:48:32 +01:00
Tom Tromey
c0e70c624f Remove find_old_style_renaming_symbol
We found a case where a "bt" was very slow with Ada code.  Profiling
with callgrind showed this to be primarily due to calls to
find_old_style_renaming_symbol.  Because new-style renaming symbols
were implemented in 2007, it seems safe enough to remove this old
code.

A "-batch -ex bt" test on a large Ada program improves from:

    13.23user 0.57system 0:13.82elapsed 99%CPU (0avgtext+0avgdata 571408maxresident)k

to

    4.25user 0.48system 0:04.74elapsed 99%CPU (0avgtext+0avgdata 559844maxresident)k

with this patch.

Tested on x86-64 Fedora 29.  Joel reviewed this internally; and as it
is Ada-specific, I am checking it in.

gdb/ChangeLog
2019-05-28  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_remove_Xbn_suffix)
	(find_old_style_renaming_symbol)
	(parse_old_style_renaming): Remove.
	(ada_find_renaming_symbol): Don't call
	find_old_style_renaming_symbol.
	(ada_is_renaming_symbol): Rename from
	ada_find_renaming_symbol.  Remove "block" parameter.  Return
	bool.  Now static.
	(ada_read_var_value): Update and simplify.
	* ada-exp.y (write_var_or_type): Remove old code.
2019-05-28 12:39:01 -04:00
Tom Tromey
c408a94f81 Fix assertion failure in coerce_unspec_val_to_type
coerce_unspec_val_to_type does:

      set_value_address (result, value_address (val));

However, this is only valid for lval_memory.  This patch changes this
code to only set the address for lval_memory values.

This seems like an ordinary oversight in coerce_unspec_val_to_type,
and a test case would be difficult to write, so I'm submitting it
without a test case.

Tested on x86-64 Fedora 29; plus using an Ada program that exhibits
the bug (but which cannot be shared).

gdb/ChangeLog
2019-05-14  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (coerce_unspec_val_to_type): Only set address when
	value is not lval_memory.
2019-05-14 16:07:28 -06:00
Tom Tromey
71bed2dba6 Add completion for Ada catch commands
This patch adds a completion function to the "catch exception"
and "catch handlers" commands.

Tested on x86-64 Fedora 29; reviewed off-list by Joel.

gdb/ChangeLog
2019-05-10  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (catch_ada_completer): New function.
	(_initialize_ada_language): Use it.

gdb/testsuite/ChangeLog
2019-05-10  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/info_exc.exp: Add "complete" test.
2019-05-10 09:57:42 -06:00
Tom Tromey
f37b313d5c Convert ada-lang.c to type-safe registry API
This changes ada-lang.c to use the type-safe registry API.

gdb/ChangeLog
2019-05-08  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (struct ada_inferior_data): Add initializers.
	(ada_inferior_data): Change type.
	(ada_inferior_data_cleanup): Remove.
	(get_ada_inferior_data, ada_inferior_exit)
	(struct ada_pspace_data): Add initializers, destructor.
	(ada_pspace_data_handle): Change type.
	(get_ada_pspace_data): Update.
	(ada_pspace_data_cleanup): Remove.
2019-05-08 16:01:52 -06:00
Tom Tromey
bde09ab702 Remove "struct" from foreach statements
Some versions of gcc have a bug that causes

    for (struct mumble : something)

... to give a compiler error.  We routinely work around this bug in
gdb, but apparently had not done so in a while.  This patch fixes the
remaining known cases of this problem.

gdb/ChangeLog
2019-05-03  Sandra Loosemore  <sandra@codesourcery.com>
	    Tom Tromey  <tom@tromey.com>

	* dictionary.c (collate_pending_symbols_by_language): Remove
	"struct" from foreach.
	* symtab.c (lookup_global_symbol_from_objfile)
	(lookup_symbol_in_objfile_from_linkage_name): Remove "struct" from
	foreach.
	* ser-tcp.c (net_open): Remove "struct" from foreach.
	* objfiles.c (objfile_relocate, objfile_rebase)
	(objfile_has_symbols): Remove "struct" from foreach.
	* minsyms.c (lookup_minimal_symbol_by_pc_section): Remove "struct"
	from foreach.
	* dwarf2read.c (handle_struct_member_die): Remove "struct" from
	foreach.
	* darwin-nat.c (thread_info_from_private_thread_info): Remove
	"struct" from foreach.
	* ada-lang.c (create_excep_cond_exprs)
	(ada_exception_catchpoint_cond_string): Remove "struct" from
	foreach.
2019-05-03 18:06:37 -06:00
Tom Tromey
4504bbdec5 Fix bug in assignment to nested packed structure
A user at AdaCore found a case where assignment to a nested packed
structure would fail.  The bug is that ada_value_primitive_field
doesn't account for the situation where a field is not packed relative
to its containing structure, but where the structure itself is packed
in its parent.

gdb/ChangeLog
2019-05-01  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_value_primitive_field): Treat more fields as
	bitfields.

gdb/testsuite/ChangeLog
2019-05-01  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/packed_array_assign/aggregates.ads (Nested_Packed): New
	record.
	(NPR): New variable.
	* gdb.ada/packed_array_assign.exp: Add nested packed assignment
	test.
2019-05-01 08:09:22 -06:00
Tom Tromey
d48e62f4a2 Fix big-endian aggregate assignment in Ada
A bug internal to AdaCore notes that assigning a non-scalar value to
an element of a packed array will sometimes fail.

The bug turns out to be that ada_value_assign incorrectly computes the
starting point for the assignment.  This patch fixes the problem.

gdb/ChangeLog
2019-05-01  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_value_assign): Correctly compute starting offset
	for big-endian copies.

gdb/testsuite/ChangeLog
2019-05-01  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/packed_array_assign.exp: Add packed assignment
	regression test.
2019-05-01 08:09:22 -06:00
Tom Tromey
2ff0a94739 Fix "catch exception" with dynamic linking
When an Ada program is dynamically linked against libgnat, and when
one of the standard exceptions is used, the exception object may be
referenced by the main executable using a copy relocation.

In this situation, a "catch exception" for those exceptions will not
manage to stop.  This happens because, under the hood, "catch
exception" creates an expression object that examines the object
addresses -- but in this case, the address will be incorrect.

This patch fixes the problem by arranging for these filter expressions
to examine all the relevant minimal symbols.  This way, the object
from libgnat will be found as well.

Tested on x86-64 Fedora 29.

gdb/ChangeLog
2019-04-30  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_lookup_simple_minsyms): New function.
	(create_excep_cond_exprs): Iterate over program spaces.
	(ada_exception_catchpoint_cond_string): Examine all minimal
	symbols for exception types.

gdb/testsuite/ChangeLog
2019-04-30  Tom Tromey  <tromey@adacore.com>

	* lib/ada.exp (find_ada_tool): New proc.
	* lib/gdb.exp (gdb_compile_shlib): Allow .o files as inputs.
	* gdb.ada/catch_ex_std.exp: New file.
	* gdb.ada/catch_ex_std/foo.adb: New file.
	* gdb.ada/catch_ex_std/some_package.adb: New file.
	* gdb.ada/catch_ex_std/some_package.ads: New file.
2019-04-30 07:32:11 -06:00
Andrew Burgess
4be290b251 gdb: Introduce new language field la_is_string_type_p
This commit is preparation work for the next commit, and by itself
makes no user visible change to GDB.  I've split this work into a
separate commit in order to make code review easier.

This commit adds a new field 'la_is_string_type_p' to the language
struct, this predicate will return true if a type is a string type for
the given language.

Some languages already have a "is this a string" predicate that I was
able to reuse, while for other languages I've had to add a new
predicate.  In this case I took inspiration from the value printing
code for that language - what different conditions would result in
printing something as a string.

A default "is this a string" method has also been added that looks for
TYPE_CODE_STRING, this is the fallback I've used for a couple of
languages.

In this commit I add the new field and initialise it for each
language, however at this stage the new field is never used.

gdb/ChangeLog:

	* ada-lang.c (ada_language_defn): Initialise new field.
	* c-lang.c (c_is_string_type_p): New function.
	(c_language_defn): Initialise new field.
	(cplus_language_defn): Initialise new field.
	(asm_language_defn): Initialise new field.
	(minimal_language_defn): Initialise new field.
	* c-lang.h (c_is_string_type_p): Declare new function.
	* d-lang.c (d_language_defn): Initialise new field.
	* f-lang.c (f_is_string_type_p): New function.
	(f_language_defn): Initialise new field.
	* go-lang.c (go_is_string_type_p): New function.
	(go_language_defn): Initialise new field.
	* language.c (default_is_string_type_p): New function.
	(unknown_language_defn): Initialise new field.
	(auto_language_defn): Initialise new field.
	* language.h (struct language_defn) <la_is_string_type_p>: New
	member variable.
	(default_is_string_type_p): Declare new function.
	* m2-lang.c (m2_language_defn): Initialise new field.
	* objc-lang.c (objc_language_defn): Initialise new field.
	* opencl-lang.c (opencl_language_defn): Initialise new field.
	* p-lang.c (pascal_is_string_type_p): New function.
	(pascal_language_defn): Initialise new field.
	* rust-lang.c (rust_is_string_type_p): New function.
	(rust_language_defn): Initialise new field.
2019-04-29 22:01:08 +01:00
Andrew Burgess
721b08c686 gdb: Introduce new language field la_struct_too_deep_ellipsis
This commit is preparation work for a later commit, and by itself
makes no user visible change to GDB.  I've split this work into a
separate commit in order to make code review easier.

This commit adds a new field 'la_struct_too_deep_ellipsis' to the
language struct, this string will be used in the next commit to print
a language specific string from within the generic value printing
code.

In this commit I add the new field and initialise it for each
language, however at this stage the new field is never used.

gdb/ChangeLog:

	* language.h (struct language_defn) <la_struct_too_deep_ellipsis>:
	New field.
	* ada-lang.c (ada_language_defn): Initialise new field.
	* c-lang.c (c_language_defn): Likewise.
	(cplus_language_defn): Likewise.
	(asm_language_defn): Likewise.
	(minimal_language_defn): Likewise.
	* d-lang.c (d_language_defn): Likewise.
	* f-lang.c (f_language_defn): Likewise.
	* go-lang.c (go_language_defn): Likewise.
	* language.c (unknown_language_defn): Likewise.
	(auto_language_defn): Likewise.
	* m2-lang.c (m2_language_defn): Likewise.
	* objc-lang.c (objc_language_defn): Likewise.
	* opencl-lang.c (opencl_language_defn): Likewise.
	* p-lang.c (pascal_language_defn): Likewise.
	* rust-lang.c (rust_language_defn): Likewise.
2019-04-29 22:01:07 +01:00
Andrew Burgess
fc913e53c3 gdb/ada: Update some predicate functions to return bool
A later commit would like to make use of a pointer to the function
ada_is_string_type, however, this will require the function to return
a bool (so the signature matches).

As the ada_is_string_type is a predicate function, and its return
value is only ever used as either true or false, then this commit
updates the function to return a bool.

As a consequence ada_is_character_type needs to change too.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_is_character_type): Change return type to bool.
	(ada_is_string_type): Likewise.
	* ada-lang.h (ada_is_character_type): Update declaration
	(ada_is_string_type): Likewise.
2019-04-29 22:01:06 +01:00
Tom Tromey
8ecb59f856 Print non-Ada unions without crashing
ada-lang.c is a bit too eager trying to decode unions in the Ada style
-- looking for discriminants and such.  This causes crashes when
printing a non-Ada union in Ada mode, something that can easily happen
when printing a value from history or certain registers on AArch64.

This patch fixes the bug by changing ada-lang.c to only apply special
Ada treatment to types coming from an Ada CU.  This in turn required a
couple of surprising changes.

First, some of the Ada code was already using HAVE_GNAT_AUX_INFO to
decide whether a type had already been fixed -- such types had
INIT_CPLUS_SPECIFIC called on them.  This patch changes these spots to
use the "none" identifier instead.

This then required changing value_rtti_type to avoid changing the
language-specific object attached to an Ada type, which seems like a
good change regardless.

Tested on x86-64 Fedora 29.

gdb/ChangeLog
2019-04-19  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_is_variant_part, ada_to_fixed_type_1):
	Check ADA_TYPE_P.
	(empty_record, ada_template_to_fixed_record_type_1)
	(template_to_static_fixed_type)
	(to_record_with_fixed_variant_part): Use INIT_NONE_SPECIFIC.
	* cp-abi.c (value_rtti_type): Check HAVE_CPLUS_STRUCT.
	* gdbtypes.h (INIT_NONE_SPECIFIC, ADA_TYPE_P): New
	macros.

gdb/testsuite/ChangeLog
2019-04-19  Tom Tromey  <tromey@adacore.com>

	* gdb.ada/ptype_union.c: New file.
	* gdb.ada/ptype_union.exp: New file.
2019-04-19 13:23:05 -06:00
Andrew Burgess
62253a6147 gdb: Remove LANG_MAGIC
The language_defn structure has an la_magic field, this used to be
used as a basic check that the language_defn structure had the
expected layout - at least the end of the structure was where we
expected it to be.

This feature only really makes sense if we imagine GDB dynamically
loading language support from dynamic libraries, where a version
mismatch might cause problems.

However, in current GDB language support is statically built into GDB,
and since this commit:

    commit 47e77640be
    Date:   Thu Jul 20 18:28:01 2017 +0100

        Make language_def O(1)

the existing (if pointless) check of the la_magic field was removed.

There now appears to be no use of the la_magic field, and I propose
that we delete it.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* ada-lang.c (ada_language_defn): Remove use of LANG_MAGIC.
	* c-lang.c (c_language_defn): Likewise.
	(cplus_language_defn): Likewise.
	(asm_language_defn): Likewise.
	(minimal_language_defn): Likewise.
	* d-lang.c (d_language_defn): Likewise.
	* f-lang.c (f_language_defn): Likewise.
	* go-lang.c (go_language_defn): Likewise.
	* language.c (unknown_language_defn): Likewise.
	(auto_language_defn): Likewise.
	* language.h (struct language_defn): Remove la_magic field.
	(LANG_MAGIC): Delete.
	* m2-lang.c (m2_language_defn): Remove use of LANG_MAGIC.
	* objc-lang.c (objc_language_defn): Likewise.
	* opencl-lang.c (opencl_language_defn): Likewise.
	* p-lang.c (pascal_language_defn): Likewise.
	* rust-lang.c (rust_language_defn): Likewise.
2019-04-12 09:28:16 +01:00
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.
2019-04-08 09:05:40 -06:00
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.
2019-04-08 09:05:39 -06:00
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.
2019-04-08 09:05:38 -06:00
Tom Tromey
4de283e4b5 Revert the header-sorting patch
Andreas Schwab and John Baldwin pointed out some bugs in the header
sorting patch; and I noticed that the output was not correct when
limited to a subset of files (a bug in my script).

So, I'm reverting the patch.  I may try again after fixing the issues
pointed out.

gdb/ChangeLog
2019-04-05  Tom Tromey  <tom@tromey.com>

	Revert the header-sorting patch.
	* ft32-tdep.c: Revert.
	* frv-tdep.c: Revert.
	* frv-linux-tdep.c: Revert.
	* frame.c: Revert.
	* frame-unwind.c: Revert.
	* frame-base.c: Revert.
	* fork-child.c: Revert.
	* findvar.c: Revert.
	* findcmd.c: Revert.
	* filesystem.c: Revert.
	* filename-seen-cache.h: Revert.
	* filename-seen-cache.c: Revert.
	* fbsd-tdep.c: Revert.
	* fbsd-nat.h: Revert.
	* fbsd-nat.c: Revert.
	* f-valprint.c: Revert.
	* f-typeprint.c: Revert.
	* f-lang.c: Revert.
	* extension.h: Revert.
	* extension.c: Revert.
	* extension-priv.h: Revert.
	* expprint.c: Revert.
	* exec.h: Revert.
	* exec.c: Revert.
	* exceptions.c: Revert.
	* event-top.c: Revert.
	* event-loop.c: Revert.
	* eval.c: Revert.
	* elfread.c: Revert.
	* dwarf2read.h: Revert.
	* dwarf2read.c: Revert.
	* dwarf2loc.c: Revert.
	* dwarf2expr.h: Revert.
	* dwarf2expr.c: Revert.
	* dwarf2-frame.c: Revert.
	* dwarf2-frame-tailcall.c: Revert.
	* dwarf-index-write.h: Revert.
	* dwarf-index-write.c: Revert.
	* dwarf-index-common.c: Revert.
	* dwarf-index-cache.h: Revert.
	* dwarf-index-cache.c: Revert.
	* dummy-frame.c: Revert.
	* dtrace-probe.c: Revert.
	* disasm.h: Revert.
	* disasm.c: Revert.
	* disasm-selftests.c: Revert.
	* dictionary.c: Revert.
	* dicos-tdep.c: Revert.
	* demangle.c: Revert.
	* dcache.h: Revert.
	* dcache.c: Revert.
	* darwin-nat.h: Revert.
	* darwin-nat.c: Revert.
	* darwin-nat-info.c: Revert.
	* d-valprint.c: Revert.
	* d-namespace.c: Revert.
	* d-lang.c: Revert.
	* ctf.c: Revert.
	* csky-tdep.c: Revert.
	* csky-linux-tdep.c: Revert.
	* cris-tdep.c: Revert.
	* cris-linux-tdep.c: Revert.
	* cp-valprint.c: Revert.
	* cp-support.c: Revert.
	* cp-namespace.c: Revert.
	* cp-abi.c: Revert.
	* corelow.c: Revert.
	* corefile.c: Revert.
	* continuations.c: Revert.
	* completer.h: Revert.
	* completer.c: Revert.
	* complaints.c: Revert.
	* coffread.c: Revert.
	* coff-pe-read.c: Revert.
	* cli-out.h: Revert.
	* cli-out.c: Revert.
	* charset.c: Revert.
	* c-varobj.c: Revert.
	* c-valprint.c: Revert.
	* c-typeprint.c: Revert.
	* c-lang.c: Revert.
	* buildsym.c: Revert.
	* buildsym-legacy.c: Revert.
	* build-id.h: Revert.
	* build-id.c: Revert.
	* btrace.c: Revert.
	* bsd-uthread.c: Revert.
	* breakpoint.h: Revert.
	* breakpoint.c: Revert.
	* break-catch-throw.c: Revert.
	* break-catch-syscall.c: Revert.
	* break-catch-sig.c: Revert.
	* blockframe.c: Revert.
	* block.c: Revert.
	* bfin-tdep.c: Revert.
	* bfin-linux-tdep.c: Revert.
	* bfd-target.c: Revert.
	* bcache.c: Revert.
	* ax-general.c: Revert.
	* ax-gdb.h: Revert.
	* ax-gdb.c: Revert.
	* avr-tdep.c: Revert.
	* auxv.c: Revert.
	* auto-load.c: Revert.
	* arm-wince-tdep.c: Revert.
	* arm-tdep.c: Revert.
	* arm-symbian-tdep.c: Revert.
	* arm-pikeos-tdep.c: Revert.
	* arm-obsd-tdep.c: Revert.
	* arm-nbsd-tdep.c: Revert.
	* arm-nbsd-nat.c: Revert.
	* arm-linux-tdep.c: Revert.
	* arm-linux-nat.c: Revert.
	* arm-fbsd-tdep.c: Revert.
	* arm-fbsd-nat.c: Revert.
	* arm-bsd-tdep.c: Revert.
	* arch-utils.c: Revert.
	* arc-tdep.c: Revert.
	* arc-newlib-tdep.c: Revert.
	* annotate.h: Revert.
	* annotate.c: Revert.
	* amd64-windows-tdep.c: Revert.
	* amd64-windows-nat.c: Revert.
	* amd64-tdep.c: Revert.
	* amd64-sol2-tdep.c: Revert.
	* amd64-obsd-tdep.c: Revert.
	* amd64-obsd-nat.c: Revert.
	* amd64-nbsd-tdep.c: Revert.
	* amd64-nbsd-nat.c: Revert.
	* amd64-nat.c: Revert.
	* amd64-linux-tdep.c: Revert.
	* amd64-linux-nat.c: Revert.
	* amd64-fbsd-tdep.c: Revert.
	* amd64-fbsd-nat.c: Revert.
	* amd64-dicos-tdep.c: Revert.
	* amd64-darwin-tdep.c: Revert.
	* amd64-bsd-nat.c: Revert.
	* alpha-tdep.c: Revert.
	* alpha-obsd-tdep.c: Revert.
	* alpha-nbsd-tdep.c: Revert.
	* alpha-mdebug-tdep.c: Revert.
	* alpha-linux-tdep.c: Revert.
	* alpha-linux-nat.c: Revert.
	* alpha-bsd-tdep.c: Revert.
	* alpha-bsd-nat.c: Revert.
	* aix-thread.c: Revert.
	* agent.c: Revert.
	* addrmap.c: Revert.
	* ada-varobj.c: Revert.
	* ada-valprint.c: Revert.
	* ada-typeprint.c: Revert.
	* ada-tasks.c: Revert.
	* ada-lang.c: Revert.
	* aarch64-tdep.c: Revert.
	* aarch64-ravenscar-thread.c: Revert.
	* aarch64-newlib-tdep.c: Revert.
	* aarch64-linux-tdep.c: Revert.
	* aarch64-linux-nat.c: Revert.
	* aarch64-fbsd-tdep.c: Revert.
	* aarch64-fbsd-nat.c: Revert.
	* aarch32-linux-nat.c: Revert.
2019-04-06 13:47:34 -06:00
Tom Tromey
d55e5aa6b2 Sort includes for files gdb/[a-f]*.[chyl].
This patch sorts the include files for the files [a-f]*.[chyl].
The patch was written by a script.

Tested by the buildbot.

I will follow up with patches to sort the remaining files, by sorting
a subset, testing them, and then checking them in.

gdb/ChangeLog
2019-04-05  Tom Tromey  <tom@tromey.com>

	* ft32-tdep.c: Sort headers.
	* frv-tdep.c: Sort headers.
	* frv-linux-tdep.c: Sort headers.
	* frame.c: Sort headers.
	* frame-unwind.c: Sort headers.
	* frame-base.c: Sort headers.
	* fork-child.c: Sort headers.
	* findvar.c: Sort headers.
	* findcmd.c: Sort headers.
	* filesystem.c: Sort headers.
	* filename-seen-cache.h: Sort headers.
	* filename-seen-cache.c: Sort headers.
	* fbsd-tdep.c: Sort headers.
	* fbsd-nat.h: Sort headers.
	* fbsd-nat.c: Sort headers.
	* f-valprint.c: Sort headers.
	* f-typeprint.c: Sort headers.
	* f-lang.c: Sort headers.
	* extension.h: Sort headers.
	* extension.c: Sort headers.
	* extension-priv.h: Sort headers.
	* expprint.c: Sort headers.
	* exec.h: Sort headers.
	* exec.c: Sort headers.
	* exceptions.c: Sort headers.
	* event-top.c: Sort headers.
	* event-loop.c: Sort headers.
	* eval.c: Sort headers.
	* elfread.c: Sort headers.
	* dwarf2read.h: Sort headers.
	* dwarf2read.c: Sort headers.
	* dwarf2loc.c: Sort headers.
	* dwarf2expr.h: Sort headers.
	* dwarf2expr.c: Sort headers.
	* dwarf2-frame.c: Sort headers.
	* dwarf2-frame-tailcall.c: Sort headers.
	* dwarf-index-write.h: Sort headers.
	* dwarf-index-write.c: Sort headers.
	* dwarf-index-common.c: Sort headers.
	* dwarf-index-cache.h: Sort headers.
	* dwarf-index-cache.c: Sort headers.
	* dummy-frame.c: Sort headers.
	* dtrace-probe.c: Sort headers.
	* disasm.h: Sort headers.
	* disasm.c: Sort headers.
	* disasm-selftests.c: Sort headers.
	* dictionary.c: Sort headers.
	* dicos-tdep.c: Sort headers.
	* demangle.c: Sort headers.
	* dcache.h: Sort headers.
	* dcache.c: Sort headers.
	* darwin-nat.h: Sort headers.
	* darwin-nat.c: Sort headers.
	* darwin-nat-info.c: Sort headers.
	* d-valprint.c: Sort headers.
	* d-namespace.c: Sort headers.
	* d-lang.c: Sort headers.
	* ctf.c: Sort headers.
	* csky-tdep.c: Sort headers.
	* csky-linux-tdep.c: Sort headers.
	* cris-tdep.c: Sort headers.
	* cris-linux-tdep.c: Sort headers.
	* cp-valprint.c: Sort headers.
	* cp-support.c: Sort headers.
	* cp-namespace.c: Sort headers.
	* cp-abi.c: Sort headers.
	* corelow.c: Sort headers.
	* corefile.c: Sort headers.
	* continuations.c: Sort headers.
	* completer.h: Sort headers.
	* completer.c: Sort headers.
	* complaints.c: Sort headers.
	* coffread.c: Sort headers.
	* coff-pe-read.c: Sort headers.
	* cli-out.h: Sort headers.
	* cli-out.c: Sort headers.
	* charset.c: Sort headers.
	* c-varobj.c: Sort headers.
	* c-valprint.c: Sort headers.
	* c-typeprint.c: Sort headers.
	* c-lang.c: Sort headers.
	* buildsym.c: Sort headers.
	* buildsym-legacy.c: Sort headers.
	* build-id.h: Sort headers.
	* build-id.c: Sort headers.
	* btrace.c: Sort headers.
	* bsd-uthread.c: Sort headers.
	* breakpoint.h: Sort headers.
	* breakpoint.c: Sort headers.
	* break-catch-throw.c: Sort headers.
	* break-catch-syscall.c: Sort headers.
	* break-catch-sig.c: Sort headers.
	* blockframe.c: Sort headers.
	* block.c: Sort headers.
	* bfin-tdep.c: Sort headers.
	* bfin-linux-tdep.c: Sort headers.
	* bfd-target.c: Sort headers.
	* bcache.c: Sort headers.
	* ax-general.c: Sort headers.
	* ax-gdb.h: Sort headers.
	* ax-gdb.c: Sort headers.
	* avr-tdep.c: Sort headers.
	* auxv.c: Sort headers.
	* auto-load.c: Sort headers.
	* arm-wince-tdep.c: Sort headers.
	* arm-tdep.c: Sort headers.
	* arm-symbian-tdep.c: Sort headers.
	* arm-pikeos-tdep.c: Sort headers.
	* arm-obsd-tdep.c: Sort headers.
	* arm-nbsd-tdep.c: Sort headers.
	* arm-nbsd-nat.c: Sort headers.
	* arm-linux-tdep.c: Sort headers.
	* arm-linux-nat.c: Sort headers.
	* arm-fbsd-tdep.c: Sort headers.
	* arm-fbsd-nat.c: Sort headers.
	* arm-bsd-tdep.c: Sort headers.
	* arch-utils.c: Sort headers.
	* arc-tdep.c: Sort headers.
	* arc-newlib-tdep.c: Sort headers.
	* annotate.h: Sort headers.
	* annotate.c: Sort headers.
	* amd64-windows-tdep.c: Sort headers.
	* amd64-windows-nat.c: Sort headers.
	* amd64-tdep.c: Sort headers.
	* amd64-sol2-tdep.c: Sort headers.
	* amd64-obsd-tdep.c: Sort headers.
	* amd64-obsd-nat.c: Sort headers.
	* amd64-nbsd-tdep.c: Sort headers.
	* amd64-nbsd-nat.c: Sort headers.
	* amd64-nat.c: Sort headers.
	* amd64-linux-tdep.c: Sort headers.
	* amd64-linux-nat.c: Sort headers.
	* amd64-fbsd-tdep.c: Sort headers.
	* amd64-fbsd-nat.c: Sort headers.
	* amd64-dicos-tdep.c: Sort headers.
	* amd64-darwin-tdep.c: Sort headers.
	* amd64-bsd-nat.c: Sort headers.
	* alpha-tdep.c: Sort headers.
	* alpha-obsd-tdep.c: Sort headers.
	* alpha-nbsd-tdep.c: Sort headers.
	* alpha-mdebug-tdep.c: Sort headers.
	* alpha-linux-tdep.c: Sort headers.
	* alpha-linux-nat.c: Sort headers.
	* alpha-bsd-tdep.c: Sort headers.
	* alpha-bsd-nat.c: Sort headers.
	* aix-thread.c: Sort headers.
	* agent.c: Sort headers.
	* addrmap.c: Sort headers.
	* ada-varobj.c: Sort headers.
	* ada-valprint.c: Sort headers.
	* ada-typeprint.c: Sort headers.
	* ada-tasks.c: Sort headers.
	* ada-lang.c: Sort headers.
	* aarch64-tdep.c: Sort headers.
	* aarch64-ravenscar-thread.c: Sort headers.
	* aarch64-newlib-tdep.c: Sort headers.
	* aarch64-linux-tdep.c: Sort headers.
	* aarch64-linux-nat.c: Sort headers.
	* aarch64-fbsd-tdep.c: Sort headers.
	* aarch64-fbsd-nat.c: Sort headers.
	* aarch32-linux-nat.c: Sort headers.
2019-04-05 19:09:35 -06:00
Tom Tromey
699bd4cfa8 Move innermost_block_tracker global to parse_state
This changes the parsing API so that callers that are interested in
tracking the innermost block must instantiate an
innermost_block_tracker and pass it in.  Then, a pointer to this
object is stored in the parser_state.

2019-04-04  Tom Tromey  <tom@tromey.com>

	* varobj.c (varobj_create): Update.
	* rust-exp.y (struct rust_parser) <update_innermost_block,
	lookup_symbol>: New methods.
	(rust_parser::update_innermost_block, rust_parser::lookup_symbol):
	Rename.
	(rust_parser::rust_lookup_type)
	(rust_parser::convert_ast_to_expression, rust_lex_tests): Update.
	* printcmd.c (display_command, do_one_display): Update.
	* parser-defs.h (struct parser_state) <parser_state>: Add
	"tracker" parameter.
	(block_tracker): New member.
	(class innermost_block_tracker) <innermost_block_tracker>: Add
	"types" parameter.
	<reset>: Remove method.
	(innermost_block): Don't declare.
	(null_post_parser): Update.
	* parse.c (innermost_block): Remove global.
	(write_dollar_variable): Update.
	(parse_exp_1, parse_exp_in_context): Add "tracker" parameter.
	Remove "tracker_types" parameter.
	(parse_expression): Add "tracker" parameter.
	(parse_expression_for_completion): Update.
	(null_post_parser): Add "tracker" parameter.
	* p-exp.y: Update rules.
	* m2-exp.y: Update rules.
	* language.h (struct language_defn) <la_post_parser>: Add
	"tracker" parameter.
	* go-exp.y: Update rules.
	* f-exp.y: Update rules.
	* expression.h (parse_expression, parse_exp_1): Add "tracker"
	parameter.
	* d-exp.y: Update rules.
	* c-exp.y: Update rules.
	* breakpoint.c (set_breakpoint_condition): Create an
	innermost_block_tracker.
	(watch_command_1): Likewise.
	* ada-lang.c (resolve): Add "tracker" parameter.
	(resolve_subexp): Likewise.
	* ada-exp.y (write_var_from_sym): Update.
2019-04-04 19:55:11 -06:00
Tom Tromey
2a61252965 Move completion parsing to parser_state
This moves the globals and functions related to parsing for completion
to parser_state.  A new structure is introduced in order to return
completion results from the parse back to
parse_expression_for_completion.

gdb/ChangeLog
2019-04-04  Tom Tromey  <tom@tromey.com>

	* rust-exp.y (rust_parser::lex_identifier, rustyylex)
	(rust_parser::convert_ast_to_expression, rust_parse)
	(rust_lex_test_completion, rust_lex_tests): Update.
	* parser-defs.h (struct expr_completion_state): New.
	(struct parser_state) <parser_state>: Add completion parameter.
	<mark_struct_expression, mark_completion_tag>: New methods.
	<parse_completion, m_completion_state>: New members.
	(prefixify_expression, null_post_parser): Update.
	(mark_struct_expression, mark_completion_tag): Don't declare.
	* parse.c (parse_completion, expout_last_struct)
	(expout_tag_completion_type, expout_completion_name): Remove
	globals.
	(parser_state::mark_struct_expression)
	(parser_state::mark_completion_tag): Now methods.
	(prefixify_expression): Add last_struct parameter.
	(prefixify_subexp): Likewise.
	(parse_exp_1): Update.
	(parse_exp_in_context): Add cstate parameter.  Update.
	(parse_expression_for_completion): Create an
	expr_completion_state.
	(null_post_parser): Add "completion" parameter.
	* p-exp.y: Update rules.
	(yylex): Update.
	* language.h (struct language_defn) <la_post_parser>: Add
	"completing" parameter.
	* go-exp.y: Update rules.
	(lex_one_token): Update.
	* expression.h (parse_completion): Don't declare.
	* d-exp.y: Update rules.
	(lex_one_token): Update rules.
	* c-exp.y: Update rules.
	(lex_one_token): Update.
	* ada-lang.c (resolve): Add "parse_completion" parameter.
	(resolve_subexp): Likewise.
	(ada_resolve_function): Likewise.
2019-04-04 19:55:11 -06:00
Keith Seitz
cc1defb1dc Allow really large fortran array bounds: TYPE_LENGTH to ULONGEST
This series is revisit of Siddhesh Poyarekar's patch from back in
2012. The last status on the patch is in the following gdb-patches
thread:

  https://sourceware.org/ml/gdb-patches/2012-08/msg00562.html

It appears that Tom approved the patch, but Jan had some issues
with a compiler error that made the test fail on -m32 test runs.
He wrote up a hand-tweaked .S file to deal with it. Siddesh said
he would update tests. Then nothing.

Siddesh and Jan have both moved on since.

The patch originally required a large precursor patch to work.
I have whittled this down to/rewritten the bare minimum, and this
first patch is the result, changing the type of TYPE_LENGTH
to ULONGEST from unsigned int.

The majority of the changes involve changing printf format
strings to use %s and pulongest instead of %d.

gdb/ChangeLog:

	* ada-lang.c (ada_template_to_fixed_record_type_1): Use
	%s/pulongest for TYPE_LENGTH instead of %d in format
	strings.
	* ada-typerint.c (ada_print_type): Likewise.
	* amd64-windows-tdep.c (amd64_windows_store_arg_in_reg): Likewise.
	* compile/compile-c-support.c (generate_register_struct): Likewise.
	* gdbtypes.c (recursive_dump_type): Likewise.
	* gdbtypes.h (struct type) <length>: Change type to ULONGEST.
	* m2-typeprint.c (m2_array):  Use %s/pulongest for TYPE_LENGTH
	instead of %d in format strings.
	* riscv-tdep.c (riscv_type_alignment): Cast second argument
	to std::min to ULONGEST.
	* symmisc.c (print_symbol): Use %s/pulongest for TYPE_LENGTH
	instead of %d in format strings.
	* tracepoint.c (info_scope_command): Likewise.
	* typeprint.c (print_offset_data::update)
	(print_offset_data::finish): Likewise.
	* xtensa-tdep.c (xtensa_store_return_value)
	(xtensa_push_dummy_call): Likewise.
2019-03-29 10:15:38 -07:00
Tom Tromey
6640a367bf Remove null_block_symbol
This removes null_block_symbol.  It seemed simpler to me to change
initializations and returns to use value initialization rather than
null_block_symbol.  This also fixes up a few spots where
initialization was done piecemeal.

gdb/ChangeLog
2019-03-24  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (standard_lookup): Simplify initialization.
	(ada_lookup_symbol_nonlocal): Simplify return.
	* solib-spu.c (spu_lookup_lib_symbol): Simplify return.
	* solib-darwin.c (darwin_lookup_lib_symbol): Simplify return.
	* solib-svr4.c (elf_lookup_lib_symbol): Simplify return.
	* rust-lang.c (rust_lookup_symbol_nonlocal): Simplify
	initialization.
	* solib.c (solib_global_lookup): Simplify.
	* symtab.c (null_block_symbol): Remove.
	(symbol_cache_lookup): Simplify returns.
	(lookup_language_this): Simplify returns.
	(lookup_symbol_aux): Simplify return.
	(lookup_local_symbol): Simplify returns.
	(lookup_global_symbol_from_objfile): Simplify return.
	(lookup_symbol_in_objfile_symtabs)
	(lookup_symbol_in_objfile_from_linkage_name): Simplify return.
	(lookup_symbol_via_quick_fns, lookup_symbol_in_static_block)
	(lookup_static_symbol, lookup_global_symbol): Simplify return.
	* cp-namespace.c (cp_lookup_bare_symbol)
	(cp_search_static_and_baseclasses, cp_lookup_symbol_via_imports)
	(cp_lookup_symbol_via_all_imports, cp_lookup_nested_symbol_1)
	(cp_lookup_nested_symbol): Don't use null_block_symbol.
	(cp_lookup_symbol_via_imports): Simplify initialization.
	(find_symbol_in_baseclass): Likewise.
	* symtab.h (null_block_symbol): Remove.
	* d-namespace.c (d_lookup_symbol): Don't use null_block_symbol.
	(d_lookup_nested_symbol, d_lookup_symbol_imports)
	(d_lookup_symbol_module): Likewise.
	(find_symbol_in_baseclass): Simplify initialization.
2019-03-24 23:32:09 -06:00
Tom Tromey
582942f456 More block constification
I noticed that there are still many places referring to non-const
blocks.  This constifies all the remaining ones that I found that
could be constified.

In a few spots, this search found unused variables or fields.  I
removed these.  I've also removed some unnecessary casts to
"struct block *".

gdb/ChangeLog
2019-03-24  Tom Tromey  <tom@tromey.com>

	* c-exp.y (typebase): Remove casts.
	* gdbtypes.c (lookup_unsigned_typename, )
	(lookup_signed_typename): Remove cast.
	* eval.c (parse_to_comma_and_eval): Remove cast.
	* parse.c (write_dollar_variable): Remove cast.
	* block.h (struct block) <superblock>: Now const.
	* symfile-debug.c (debug_qf_map_matching_symbols): Update.
	* psymtab.c (psym_map_matching_symbols): Make "block" const.
	(map_block): Make "block" const.
	* symfile.h (struct quick_symbol_functions)
	<map_matching_symbols>: Constify block argument to "callback".
	* symtab.c (basic_lookup_transparent_type_quick): Make "block"
	const.
	(find_pc_sect_compunit_symtab): Make "b" const.
	(find_symbol_at_address): Likewise.
	(search_symbols): Likewise.
	* dwarf2read.c (dw2_lookup_symbol): Make "block" const.
	(dw2_debug_names_lookup_symbol): Likewise.
	(dw2_map_matching_symbols): Update.
	* p-valprint.c (pascal_val_print): Remove "block".
	* ada-lang.c (ada_add_global_exceptions): Make "b" const.
	(aux_add_nonlocal_symbols): Make "block" const.
	(resolve_subexp): Remove cast.
	* linespec.c (iterate_over_all_matching_symtabs): Make "block"
	const.
	(iterate_over_file_blocks): Likewise.
	* f-exp.y (%union) <bval>: Remove.
	* coffread.c (patch_opaque_types): Make "b" const.
	* spu-tdep.c (spu_catch_start): Make "block" const.
	* c-valprint.c (print_unpacked_pointer): Remove "block".
	* symmisc.c (dump_symtab_1): Make "b" const.
	(block_depth): Make "block" const.
	* d-exp.y (%union) <bval>: Remove.
	* cp-support.h (cp_lookup_rtti_type): Update.
	* cp-support.c (cp_lookup_rtti_type): Make "block" const.
	* psymtab.c (psym_lookup_symbol): Make "block" const.
	(maintenance_check_psymtabs): Make "b" const.
	* python/py-framefilter.c (extract_sym): Make "sym_block" const.
	(enumerate_locals, enumerate_args): Update.
	* python/py-symtab.c (stpy_global_block): Make "block" const.
	(stpy_static_block): Likewise.
	* inline-frame.c (block_starting_point_at): Make "new_block"
	const.
	* block.c (find_block_in_blockvector): Make return type const.
	(blockvector_for_pc_sect): Make "b" const.
	(find_block_in_blockvector): Make "b" const.
2019-03-24 23:32:08 -06:00
Tom Tromey
bff8c71fd8 Fix Ada "ptype" bug with array types
Using ptype on an array type in Ada can sometimes show an incorrect
high bound.  This happens because ada_evaluate_subexp will create an
array with an incorrect upper bound in the EVAL_AVOID_SIDE_EFFECTS
case.

This patch fixes the problem by arranging to always create such an
array with valid bounds.

Tested on x86-64 Fedora 29.

gdb/ChangeLog
2019-03-18  Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (empty_array): Add "high" parameter.
	(ada_evaluate_subexp): Update.

gdb/testsuite/ChangeLog
2019-03-18  Joel Brobecker  <brobecker@adacore.com>
	    Tom Tromey  <tromey@adacore.com>

	* gdb.ada/ptype_array/pck.adb: New file.
	* gdb.ada/ptype_array/pck.ads: New file.
	* gdb.ada/ptype_array/foo.adb: New file.
	* gdb.ada/ptype_array.exp: New file.
2019-03-18 06:45:16 -06:00
Tom Tromey
a008792038 Fix pager bugs with style output
I believe this fixes all the pager output problems with styling that
Philippe pointed out, plus at least one more.  The patch is somewhat
hard to reason about, so you may wish to give it a try.  Even writing
the tests was hard.

This removes the style caching, because it was difficult to keep the
style cache correct in all cases.  Since this would cause more style
escapes to be emitted, instead it changes fputs_styled to try to avoid
unnecessary changes.

Another bug was that the wrap buffer was not flushed in the case where
wrap_column==0.  In the old (pre-patch series) code, characters were
directly emitted in this case; so flushing the wrap buffer here
restores this behavior.

On error the wrap buffer must be emptied.  Otherwise, interrupting
output can leave characters in the buffer that will be emitted later.

As discussed on gdb-patches, this fixes the ada-lang.c problem where
filtered and unfiltered printing were mixed.  Now user_select_syms
uses filtered printing, which is what its callees were already doing.

Finally, it was possible for source line highlighting to be garbled
(and invalid escape sequences emitted) if the pager was invoked at the
wrong spot.  To fix this, the patch arranges for source line escapes
to always be emitted as a unit.

gdb/ChangeLog
2019-02-17  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (user_select_syms): Use filtered printing.
	* utils.c (wrap_style): New global.
	(desired_style): Remove.
	(emit_style_escape): Add stream parameter.
	(set_output_style, reset_terminal_style, prompt_for_continue):
	Update.
	(flush_wrap_buffer): Only flush gdb_stdout.
	(wrap_here): Set wrap_style.
	(fputs_maybe_filtered): Clear the wrap buffer on exception.  Don't
	treat escape sequences as a character.  Change when wrap buffer is
	flushed.
	(fputs_styled): Do not set the output style when the default is
	requested.
	* ui-style.h (struct ui_file_style) <is_default>: New method.
	* source.c (print_source_lines_base): Emit escape sequences in one
	piece.

gdb/testsuite/ChangeLog
2019-02-17  Tom Tromey  <tom@tromey.com>

	* gdb.base/style.exp: Add line-wrapping tests.
	* gdb.base/page.exp: Add test for quitting during pagination.
2019-02-17 08:35:14 -07:00
Joel Brobecker
a2cd4f1475 (Ada) fix GDB crash printing packed array
Trying to print a packed array sometimes leads to a crash (see
attached testcase for an example of when this happens):

  | (gdb) p bad
  | [1]    65571 segmentation fault  gdb -q foo

Variable "bad" is declared in the debug information as an array where
the array's type name has an XPnnn suffix:

  | .uleb128 0xc    # (DIE (0x566) DW_TAG_typedef)
  | .long   .LASF200        # DW_AT_name: "pck__t___XP1"
  | [loc info attributes snipped]
  | .long   0x550   # DW_AT_type
  | .byte   0x1     # DW_AT_alignment

The signals to GDB that the debugging information follows a GNAT encoding
used for packed arrays, and an in order to decode it, we need to find
the type whose name is the same minus the "___XPnnn" suffix: "pck__t".

For that, we make a call to ada-lang.c::standard_lookup, which is
a simple function which essentially does:

  | /* Return the result of a standard (literal, C-like) lookup of NAME in
  |    given DOMAIN, visible from lexical block BLOCK.  */
  |
  |   [...]
  |   sym = lookup_symbol_in_language (name, block, domain, language_c, 0);

Unfortunately for us, while the intent of this call was to perform
an exact-match lookup, in our case, it returns ... type pck__t___XP1
instead! In other words, it finds itself back. The reason why it finds
this type is a confluence of two factors:

  (1) Forcing the lookup into language_c currently does not affect
      how symbol matching is done anymore, because we look at the symbol's
      language to determine which kind of matching should be done;

  (2) The lookup searches the local context (via block) first, beforei
      doing a more general lookup. And looking at the debug info for
      the main subprogram, we see that type "pck__t" is not declared
      there, only in the debug info for pck.ads. In other words,
      there is no way that we accidently find "pck__t" by random chance.

I believe Pedro added a new function called ada_lookup_encoded_symbol
for that specific purpose, so I started by replacing the lookup
by language above by this. Unfortunately, still no joy.

This was because, even though ada_lookup_encoded_symbol puts angle-
brackets around the search name to signal that we want a verbatim
search, we end up losing that information in the function called
to compare a symbol with the search name:

  | static bool
  | do_full_match (const char *symbol_search_name,
  |                const lookup_name_info &lookup_name,
  |                completion_match_result *comp_match_res)
  | {
  |   return full_match (symbol_search_name, ada_lookup_name (lookup_name));
                                             ^^^^^^^^^^^^^^^
                                                    |
                                    <=> lookup_name.m_ada.m_encoded_name
                                           (no angle brackets)

The way I fixed this was by introducing a new function called
do_exact_match, and then adjust ada_get_symbol_name_matcher to
return that function when seeing that we have a verbatim non-wild-match
search.

As it happens, this fixes an incorrect test in gdb.ada/homony.exp,
where we were inserting a breakpoint on a symbol using the angle-brackets
notation, and got 2 locations for that breakpoint...

    (gdb) b <homonym__get_value>
    Breakpoint 1 at 0x4029fc: <homonym__get_value>. (2 locations)

...  each location being in a different function:

    (gdb) info break
    Num     Type           Disp Enb Address            What
    1       breakpoint     keep y   <MULTIPLE>
    1.1                         y   0x00000000004029fc in homonym.get_value
                                    at /[...]/homonym.adb:32
    1.2                         y   0x0000000000402a3a in homonym.get_value
                                    at /[...]/homonym.adb:50
    (gdb) x /i 0x00000000004029fc
       0x4029fc <homonym__get_value+8>:     movl   $0x1d,-0x4(%rbp)
    (gdb) x /i 0x0000000000402a3a
       0x402a3a <homonym__get_value__2+8>:  movl   $0x11,-0x4(%rbp)

Since we used angle-brackets, we shouldn't be matching the second one,
something this patch fixes.

gdb/ChangeLog:

        * ada-lang.c (standard_lookup): Use ada_lookup_encoded_symbol
        instead of lookup_symbol_in_language
        (do_exact_match): New function.
        (ada_get_symbol_name_matcher): Return do_exact_match when
        doing a verbatim match.

gdb/testsuite/ChangeLog:

        * gdb.ada/big_packed_array: New testcase.
        * gdb.ada/homonym.exp: Fix incorrect expected output for
        "break <homonym__get_value>" test.

Tested on x86_64-linux.
2019-02-17 08:32:45 -05:00
Tom Tromey
cc12f4a8f9 Fix memory leak in create_ada_exception_catchpoint
Phillipe noticed that create_ada_exception_catchpoint was not freeing
the "addr_string" memory:

==14141== 114 bytes in 4 blocks are definitely lost in loss record 1,054 of 3,424
==14141==    at 0x4C2BE6D: malloc (vg_replace_malloc.c:309)
==14141==    by 0x405107: xmalloc (common-utils.c:44)
==14141==    by 0x7563F9: xstrdup (xstrdup.c:34)
==14141==    by 0x381B21: ada_exception_sal (ada-lang.c:13217)
==14141==    by 0x381B21: create_ada_exception_catchpoint(gdbarch*, ada_exception_catchpoint_kind, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int, int, int) (ada-lang.c:13251)
==14141==    by 0x3820A8: catch_ada_exception_command(char const*, int, cmd_list_element*) (ada-lang.c:13285)
==14141==    by 0x3F4828: cmd_func(cmd_list_element*, char const*, int) (cli-decode.c:1892)

This patch fixes the problem by changing ada_exception_sal to return a
std::string via its out parameter.

gdb/ChangeLog
2019-02-15  Philippe Waroquiers  <philippe.waroquiers@skynet.be>
	    Tom Tromey  <tromey@adacore.com>

	* ada-lang.c (ada_exception_sal): Change addr_string to a
	std::string.
	(create_ada_exception_catchpoint): Update.
2019-02-15 13:21:39 -07:00
Tom Tromey
5f48666010 C++-ify bp_location
Philippe noticed a memory leak coming from ada_catchpoint_location --
it was not freeing the "function_name" member from its base class:

==14141== 114 bytes in 4 blocks are definitely lost in loss record 1,055 of 3,424
==14141==    at 0x4C2BE6D: malloc (vg_replace_malloc.c:309)
==14141==    by 0x405107: xmalloc (common-utils.c:44)
==14141==    by 0x7563F9: xstrdup (xstrdup.c:34)
==14141==    by 0x3B82B3: set_breakpoint_location_function(bp_location*, int) (breakpoint.c:7156)
==14141==    by 0x3C112B: add_location_to_breakpoint(breakpoint*, symtab_and_line const*) (breakpoint.c:8609)
==14141==    by 0x3C127A: init_raw_breakpoint(breakpoint*, gdbarch*, symtab_and_line, bptype, breakpoint_ops const*) (breakpoint.c:7187)
==14141==    by 0x3C1B52: init_ada_exception_breakpoint(breakpoint*, gdbarch*, symtab_and_line, char const*, breakpoint_ops const*, int, int, int) (breakpoint.c:11262)
==14141==    by 0x381C2E: create_ada_exception_catchpoint(gdbarch*, ada_exception_catchpoint_kind, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int, int, int) (ada-lang.c:13255)

This patch fixes the problem by further C++-ifying bp_location.  In
particular, bp_location_ops is now removed, and the "dtor" function
pointer is replaced with an ordinary destructor.

gdb/ChangeLog
2019-02-15  Philippe Waroquiers  <philippe.waroquiers@skynet.be>
	    Tom Tromey  <tromey@adacore.com>

	* breakpoint.c (~bp_location): Rename from bp_location_dtor.
	(bp_location_ops): Remove.
	(base_breakpoint_allocate_location): Update.
	(free_bp_location): Update.
	* ada-lang.c (class ada_catchpoint_location)
	<ada_catchpoint_location>: Remove ops parameter.
	(ada_catchpoint_location_dtor): Remove.
	(ada_catchpoint_location_ops): Remove.
	(allocate_location_exception): Update.
	* breakpoint.h (struct bp_location_ops): Remove.
	(class bp_location) <bp_location>: Remove bp_location_ops
	parameter.
	<~bp_location>: Add destructor.
	<ops>: Remove.
2019-02-15 13:21:29 -07:00
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.
2019-01-25 15:28:16 -07:00
Tom Tromey
7932255de5 Make minimal symbol range adapter a method on objfile
This removes class objfile_msymbols in favor of a method on the
objfile.

2019-01-16  Tom Tromey  <tom@tromey.com>

	* objfiles.h (struct minimal_symbol_iterator): Rename.  Move
	earlier.
	(struct objfile) <msymbols_range>: Move from top level.
	<msymbols>: New method.
	(class objfile_msymbols): Remove.
	* symtab.c (default_collect_symbol_completion_matches_break_on):
	Update.
	* symmisc.c (dump_msymbols): Update.
	* stabsread.c (scan_file_globals): Update.
	* objc-lang.c (info_selectors_command, info_classes_command)
	(find_methods): Update.
	* minsyms.c (find_solib_trampoline_target): Update.
	* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update.
	* coffread.c (coff_symfile_read): Update.
	* ada-lang.c (ada_lookup_simple_minsym)
	(ada_collect_symbol_completion_matches): Update.
2019-01-17 15:43:37 -07:00
Tom Tromey
b669c95337 Add compunits range adapter to objfile
This removes the objfile_compunits range adapter in favor of using a
method on objfile.

2019-01-15  Tom Tromey  <tom@tromey.com>

	* symtab.c (lookup_objfile_from_block)
	(lookup_symbol_in_objfile_symtabs)
	(basic_lookup_transparent_type_1, find_pc_sect_compunit_symtab)
	(find_line_symtab, info_sources_command)
	(default_collect_symbol_completion_matches_break_on)
	(make_source_files_completion_list): Update.
	* symmisc.c (print_objfile_statistics, dump_objfile)
	(maintenance_print_symbols, maintenance_info_symtabs)
	(maintenance_check_symtabs, maintenance_info_line_tables):
	Update.
	* source.c (select_source_symtab)
	(forget_cached_source_info_for_objfile): Update.
	* objfiles.h (class objfile_compunits): Remove.
	(struct objfile) <compunits_range>: New typedef.
	(compunits): New method.
	* objfiles.c (objfile_relocate1): Update.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Update.
	* maint.c (count_symtabs_and_blocks): Update.
	* linespec.c (iterate_over_all_matching_symtabs): Update.
	* cp-support.c (add_symbol_overload_list_qualified): Update.
	* coffread.c (coff_symtab_read): Update.
	* ada-lang.c (add_nonlocal_symbols)
	(ada_collect_symbol_completion_matches)
	(ada_add_global_exceptions): Update.
2019-01-17 15:42:05 -07:00
Tom Tromey
2030c07971 Change all_objfiles adapter to be a method on program_space
This changes the all_objfiles range adapter to be a method on the
program space, and fixes up all the users.

gdb/ChangeLog
2019-01-17  Tom Tromey  <tom@tromey.com>

	* progspace.h (program_space) <objfiles_range>: New typedef.
	<objfiles>: New method.
	<objfiles_head>: Rename from objfiles.
	(object_files): Update.
	* guile/scm-progspace.c (gdbscm_progspace_objfiles): Update.
	* guile/scm-pretty-print.c
	(ppscm_find_pretty_printer_from_objfiles): Update.
	* guile/scm-objfile.c (gdbscm_objfiles): Update.
	* python/py-xmethods.c (gdbpy_get_matching_xmethod_workers):
	Update.
	* python/py-progspace.c (pspy_get_objfiles): Update.
	* python/py-prettyprint.c (find_pretty_printer_from_objfiles):
	Update.
	* python/py-objfile.c (objfpy_lookup_objfile_by_name)
	(objfpy_lookup_objfile_by_build_id): Update.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Update.
	* windows-tdep.c (windows_iterate_over_objfiles_in_search_order):
	Update.
	* symtab.c (iterate_over_symtabs, matching_obj_sections)
	(expand_symtab_containing_pc, lookup_objfile_from_block)
	(lookup_static_symbol, basic_lookup_transparent_type)
	(find_pc_sect_compunit_symtab, find_symbol_at_address)
	(find_line_symtab, info_sources_command)
	(default_collect_symbol_completion_matches_break_on)
	(make_source_files_completion_list, find_main_name): Update.
	* symmisc.c (print_symbol_bcache_statistics)
	(print_objfile_statistics, maintenance_print_symbols)
	(maintenance_print_msymbols, maintenance_print_objfiles)
	(maintenance_info_symtabs, maintenance_check_symtabs)
	(maintenance_expand_symtabs, maintenance_info_line_tables):
	Update.
	* symfile.c (remove_symbol_file_command, overlay_invalidate_all)
	(find_pc_overlay, find_pc_mapped_section, list_overlays_command)
	(map_overlay_command, unmap_overlay_command)
	(simple_overlay_update, expand_symtabs_matching)
	(map_symbol_filenames): Update.
	* symfile-debug.c (set_debug_symfile): Update.
	* spu-tdep.c (spu_overlay_update, spu_objfile_from_frame):
	Update.
	* source.c (select_source_symtab, forget_cached_source_info):
	Update.
	* solib.c (solib_read_symbols): Update.
	* solib-spu.c (append_ocl_sos): Update.
	* psymtab.c (maintenance_print_psymbols)
	(maintenance_info_psymtabs, maintenance_check_psymtabs): Update.
	* probe.c (parse_probes_in_pspace, find_probe_by_pc): Update.
	* printcmd.c (info_symbol_command): Update.
	* ppc-linux-tdep.c (ppc_linux_spe_context_inferior_created):
	Update.
	* objfiles.h (class all_objfiles): Remove.
	* objfiles.c (have_partial_symbols, have_full_symbols)
	(have_minimal_symbols, qsort_cmp, update_section_map)
	(shared_objfile_contains_address_p)
	(default_iterate_over_objfiles_in_search_order): Update.
	* objc-lang.c (info_selectors_command, info_classes_command)
	(find_methods): Update.
	* minsyms.c (find_solib_trampoline_target): Update.
	* maint.c (maintenance_info_sections)
	(maintenance_translate_address, count_symtabs_and_blocks):
	Update.
	* main.c (captured_main_1): Update.
	* linux-thread-db.c (try_thread_db_load_from_pdir)
	(has_libpthread): Update.
	* linespec.c (iterate_over_all_matching_symtabs)
	(search_minsyms_for_name): Update.
	* jit.c (jit_find_objf_with_entry_addr): Update.
	* hppa-tdep.c (find_unwind_entry)
	(hppa_lookup_stub_minimal_symbol): Update.
	* gcore.c (gcore_create_callback, objfile_find_memory_regions):
	Update.
	* elfread.c (elf_gnu_ifunc_resolve_by_cache)
	(elf_gnu_ifunc_resolve_by_got): Update.
	* dwarf2-frame.c (dwarf2_frame_find_fde): Update.
	* dwarf-index-write.c (save_gdb_index_command): Update.
	* cp-support.c (add_symbol_overload_list_qualified): Update.
	* breakpoint.c (create_overlay_event_breakpoint)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint)
	(create_exception_master_breakpoint): Update.
	* blockframe.c (find_pc_partial_function): Update.
	* ada-lang.c (ada_lookup_simple_minsym, add_nonlocal_symbols)
	(ada_collect_symbol_completion_matches)
	(ada_add_global_exceptions): Update.
2019-01-17 15:34:37 -07:00
Joel Brobecker
60a9037679 expand a bit the in-GDB help for the "catch exception" help text
One of our users remarked that the help doesn't mention the fact that
the "catch exception" supports the special argument "unhandled" to catch
exceptions which do not have a handler. This patch changes the output
of...

 | (gdb) help catch exception
 | Catch Ada exceptions, when raised.
 | With an argument, catch only exceptions with the given name.

... to ...

 | (gdb) help catch exception
 | Catch Ada exceptions, when raised.
 | Usage: catch exception [ ARG ]
 |
 | Without any argument, stop when any Ada exception is raised.
 | If ARG is "unhandled" (without the quotes), only stop when the exception
 | being raised does not have a handler (and will therefore lead to the task's
 | termination).
 | Otherwise, the catchpoint only stops when the name of the exception being
 | raised is the same as ARG.

gdb/ChangeLog:

        * ada-lang.c (_initialize_ada_language): Expand the help text
        for the "catch exception" command.

Tested on x86_64-linux, no regression.
2019-01-12 09:47:58 -05:00
Tom Tromey
d8aeb77f04 Remove ALL_COMPUNITS
This removes the ALL_COMPUNITS, replacing its uses with two nested
ranged for loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (lookup_objfile_from_block)
	(find_pc_sect_compunit_symtab, search_symbols)
	(default_collect_symbol_completion_matches_break_on): Use
	objfile_compunits.
	* objfiles.h (ALL_COMPUNITS): Remove.
	* maint.c (count_symtabs_and_blocks): Use objfile_compunits.
	* cp-support.c (add_symbol_overload_list_qualified): Use
	objfile_compunits.
	* ada-lang.c (ada_collect_symbol_completion_matches)
	(ada_add_global_exceptions): Use objfile_compunits.
2019-01-09 18:28:15 -07:00
Tom Tromey
592553c469 Remove ALL_OBJFILE_COMPUNITS
This removes ALL_OBJFILE_COMPUNITS, replacing its uses with ranged for
loops.  Because ALL_COMPUNITS is also updated, in some places a
declaration must be deleted to avoid shadowing.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* source.c (select_source_symtab)
	(forget_cached_source_info_for_objfile): Remove declaration.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Remove
	declaration.
	* maint.c (count_symtabs_and_blocks): Remove declaration.
	* cp-support.c (add_symbol_overload_list_qualified): Remove
	declaration.
	* coffread.c (coff_symtab_read): Remove declaration.
	* symtab.c (lookup_symbol_in_objfile_symtabs)
	(basic_lookup_transparent_type_1): Use objfile_compunits.
	(lookup_objfile_from_block, find_pc_sect_compunit_symtab)
	(info_sources_command, search_symbols)
	(default_collect_symbol_completion_matches_break_on)
	(make_source_files_completion_list): Remove declaration.
	* ada-lang.c (add_nonlocal_symbols): Use objfile_compunits.
	(ada_collect_symbol_completion_matches)
	(ada_add_global_exceptions): Remove declaration.
	* linespec.c (iterate_over_all_matching_symtabs): Use
	objfile_compunits.
	* objfiles.h (ALL_OBJFILE_COMPUNITS): Remove.
	(class objfile_compunits): New.
	(ALL_COMPUNITS): Use objfile_compunits.
	* symmisc.c (print_objfile_statistics, maintenance_info_symtabs)
	(maintenance_check_symtabs, maintenance_info_line_tables): Use
	objfile_compunits.
	* objfiles.c (objfile_relocate1): Use objfile_compunits.
2019-01-09 18:28:15 -07:00
Tom Tromey
5325b9bf1e Remove ALL_MSYMBOLS and ALL_OBJFILE_MSYMBOLS
This removes the ALL_MSYMBOLS and ALL_OBJFILE_MSYMBOLS macros,
replacing their uses with ranged for loops.

In a couple of spots, a new declaration was needed in order to work
around shadowing; these are just temporary and are removed in a
subsequent patch.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (search_symbols)
	(default_collect_symbol_completion_matches_break_on): Use
	objfile_msymbols.
	* ada-lang.c (ada_lookup_simple_minsym)
	(ada_collect_symbol_completion_matches): Use objfile_msymbols.
	* minsyms.c (find_solib_trampoline_target): Use objfile_msymbols.
	* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Use
	objfile_msymbols.
	* coffread.c (coff_symfile_read): Use objfile_msymbols.
	* symmisc.c (dump_msymbols): Use objfile_msymbols.
	* objc-lang.c (find_methods): Use objfile_msymbols.
	(info_selectors_command, info_classes_command): Likewise.
	* stabsread.c (scan_file_globals): Use objfile_msymbols.
	* objfiles.h (class objfile_msymbols): New.
	(ALL_OBJFILE_MSYMBOLS): Remove.
	(ALL_MSYMBOLS): Remove.
2019-01-09 18:28:15 -07:00
Tom Tromey
aed57c5371 Remove most uses of ALL_OBJFILES
This removes most uses of ALL_OBJFILES, replacing them with ranged for
loops.  The remaining uses are all in macros, and will be removed in
subsequent patches.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (iterate_over_symtabs, matching_obj_sections)
	(expand_symtab_containing_pc, lookup_static_symbol)
	(basic_lookup_transparent_type, find_pc_sect_compunit_symtab)
	(find_symbol_at_address, find_line_symtab, find_main_name): Use
	all_objfiles.
	* probe.c (find_probe_by_pc, collect_probes): Use all_objfiles.
	* breakpoint.c (create_overlay_event_breakpoint)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint)
	(create_exception_master_breakpoint): Use all_objfiles.
	* linux-thread-db.c (try_thread_db_load_from_pdir)
	(has_libpthread): Use all_objfiles.
	* ada-lang.c (add_nonlocal_symbols): Use all_objfiles.
	* linespec.c (iterate_over_all_matching_symtabs)
	(search_minsyms_for_name): Use all_objfiles.
	* maint.c (maintenance_info_sections): Use all_objfiles.
	* main.c (captured_main_1): Use all_objfiles.
	* spu-tdep.c (spu_objfile_from_frame): Use all_objfiles.
	* guile/scm-objfile.c (gdbscm_objfiles): Use all_objfiles.
	* guile/scm-pretty-print.c
	(ppscm_find_pretty_printer_from_objfiles): Use all_objfiles.
	* solib-spu.c (append_ocl_sos): Use all_objfiles.
	* symmisc.c (maintenance_print_symbols): Use all_objfiles.
	(maintenance_print_msymbols): Use all_objfiles.
	* source.c (select_source_symtab): Use all_objfiles.
	* jit.c (jit_find_objf_with_entry_addr): Use all_objfiles.
	* symfile.c (remove_symbol_file_command)
	(expand_symtabs_matching, map_symbol_filenames): Use
	all_objfiles.
	* ppc-linux-tdep.c (ppc_linux_spe_context_inferior_created): Use
	all_objfiles.
	* dwarf2-frame.c (dwarf2_frame_find_fde): Use all_objfiles.
	* objc-lang.c (find_methods): Use all_objfiles.
	* objfiles.c (have_partial_symbols, have_full_symbols)
	(have_minimal_symbols, qsort_cmp)
	(default_iterate_over_objfiles_in_search_order): Use
	all_objfiles.
	* hppa-tdep.c (find_unwind_entry): Use all_objfiles.
	* psymtab.c (maintenance_print_psymbols): Use all_objfiles.
	(maintenance_check_psymtabs): Use all_objfiles.
	(ALL_PSYMTABS): Remove.
	* compile/compile-object-run.c (do_module_cleanup): Use
	all_objfiles.
	* blockframe.c (find_pc_partial_function): Use all_objfiles.
	* cp-support.c (add_symbol_overload_list_qualified): Use
	all_objfiles.
	* windows-tdep.c (windows_iterate_over_objfiles_in_search_order):
	Use all_objfiles.
	* dwarf-index-write.c (save_gdb_index_command): Use all_objfiles.
	* python/py-xmethods.c (gdbpy_get_matching_xmethod_workers): Use
	all_objfiles.
	* python/py-objfile.c (objfpy_lookup_objfile_by_name)
	(objfpy_lookup_objfile_by_build_id): Use all_objfiles.
	* python/py-prettyprint.c (find_pretty_printer_from_objfiles):
	Uses all_objfiles.
	* solib.c (solib_read_symbols): Use all_objfiles
2019-01-09 18:28:14 -07:00
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.
2019-01-01 10:01:51 +04:00
Pedro Alves
e71585ffe2 Use gdb:array_view in call_function_by_hand & friends
This replaces a few uses of pointer+length with gdb::array_view, in
call_function_by_hand and related code.

Unfortunately, due to -Wnarrowing, there are places where we can't
brace-initialize an gdb::array_view without an ugly-ish cast.  To
avoid the cast, this patch introduces a gdb::make_array_view function.
Unit tests included.

This patch in isolation may not look so interesting, due to
gdb::make_array_view uses, but I think it's still worth it.  Some of
the gdb::make_array_view calls disappear down the series, and others
could be eliminated with more (non-trivial) gdb::array_view
detangling/conversion (e.g. code around eval_call).  See this as a "we
have to start somewhere" patch.

gdb/ChangeLog:
2018-11-21  Pedro Alves  <palves@redhat.com>

	* ada-lang.c (ada_evaluate_subexp): Adjust to pass an array_view.
	* common/array-view.h (make_array_view): New.
	* compile/compile-object-run.c (compile_object_run): Adjust to
	pass an array_view.
	* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust.
	* eval.c (eval_call): Adjust to pass an array_view.
	(evaluate_subexp_standard): Adjust to pass an array_view.
	* gcore.c (call_target_sbrk): Adjust to pass an array_view.
	* guile/scm-value.c (gdbscm_value_call): Likewise.
	* infcall.c (push_dummy_code): Replace pointer + size parameters
	with an array_view parameter.
	(call_function_by_hand, call_function_by_hand_dummy): Likewise and
	adjust.
	* infcall.h: Include "common/array-view.h".
	(call_function_by_hand, call_function_by_hand_dummy): Replace
	pointer + size parameters with an array_view parameter.
	* linux-fork.c (inferior_call_waitpid): Adjust to use array_view.
	* linux-tdep.c (linux_infcall_mmap): Likewise.
	* objc-lang.c (lookup_objc_class, lookup_child_selector)
	(value_nsstring, print_object_command): Likewise.
	* python/py-value.c (valpy_call): Likewise.
	* rust-lang.c (rust_evaluate_funcall): Likewise.
	* spu-tdep.c (flush_ea_cache): Likewise.
	* valarith.c (value_x_binop, value_x_unop): Likewise.
	* valops.c (value_allocate_space_in_inferior): Likewise.
	* unittests/array-view-selftests.c (run_tests): Add
	gdb::make_array_view test.
2018-11-21 11:55:11 +00:00
Joel Brobecker
a99bc3d23c delete ada-lang.c::move_bits, sharing and re-using copy_bitwise instead
This patch deletes ada-lang.c's move_bits function entirely, and
replaces all calls to it by calls to copy_bitwise instead. Because
the latter function was declared locally inside dwarf2loc.c, this
patch also move the function to a common area, and makes it non-static.

gdb/ChangeLog:

        * ada-lang.c (move_bits): Delete. Update all callers to use
        copy_bitwise instead.
        * dwarf2loc.c (copy_bitwise, bits_to_str::bits_to_str)
        (selftests::check_copy_bitwise, selftests::copy_bitwise_tests):
        Move from here to utils.c.
        (_initialize_dwarf2loc): Remove call to register copy_bitwise
        selftests.
        * utils.h (copy_bitwise): Add declaration.
        * utils.c (copy_bitwise, bits_to_str::bits_to_str)
        (selftests::check_copy_bitwise, selftests::copy_bitwise_tests):
        Moved here from dwarf2loc.c.
        (_initialize_utils): Register copy_bitwise selftests.

Tested on x86_64-linux, no regression. Also tested using AdaCore's
testsuite on a collection of small endian and big endian platforms.
2018-11-14 18:18:49 -05:00
Philippe Waroquiers
470678d7c9 OBVIOUS Fix a typo in ada-lang.c add_prefix_cmd for "set ada"
Correct typo in add_prefix_cmd doc arg for "set ada".
2018-11-03 21:33:42 +01:00
Joel Brobecker
e2b7af7242 (Ada) fix "error in expression" when using watch -location command
The "watch -l EXPR" command with the language set to Ada currently
fails with the following error:

     (gdb) watch -l global_var
     Error in expression, near ` 0x000000000062d2d8'.

The error occurs because GDB internally translate the request into
a watchpoint on a different expression: "* (TYPE *) ADDR" where
TYPE and ADDR are the type and the address of the object returned
by the expression's evaluation (resp.). So, in the example above,
global_var being an integer stored at 0x000000000062d2d8, GDB tries
to set a watchpoint on "* (integer *) 0x000000000062d2d8", which
fails, because we try to parse this expression with Ada, when
in fact it is not valid.

This patch fixes the issue by implementing the la_watch_location_expression
language method, using a syntax that the Ada parser recognizes
("{TYPE} ADDR").

gdb/ChangeLog:

	* ada-lang.c (ada_watch_location_expression): New function.
        (ada_language_defn): Set la_watch_location_expression to
        ada_watch_location_expression.

gdb/testsuite/ChangeLog:

        * gdb.ada/watch_minus_l: New testcase.
2018-11-01 15:15:41 -07:00
Jerome Guitton
1f5d1570c0 (Ada) Fix resolving of homonym components in tagged types
ada_value_struct_elt is used when displaying a component (say, 'N') of
a record object (say, 'Obj') of type, say, 't1'. Now if Obj is tagged
(Ada parlance: "tagged types" are what other object-oriented languages
call "classes"), then 'N' may not be visible in the current view and
we need to look for it in its actual type. We do that at the same time
as resolving variable-length fields. This would typically be done by
the following call to ada_value_struct_elt, with the last parameter
check_tag set to 1:

      t1 = ada_to_fixed_type (ada_get_base_type (t1), NULL,
                              address, NULL, 1);

This is the general logic, but recently we introduced a special case
to handle homonyms. Different components may have the same name in a
tagged type.  For instance:

       type Top_T is tagged record
          N : Integer := 1;
       end record;

       type Middle_T is new Top.Top_T with record
          N : Character := 'a';
       end record;

Middle_T extends Top_T and both define a (different) component with
the same name ('N'). In such a case, using the actual type of a
Middle_T object would create a confusion, since we would have two
component 'N' in this actual type.

So, to handle homonyms, we convert t1 to the actual type *if
and only if* N cannot be found in the current view. For example, if Obj
has been created as a Middle_T but is seen as a Top_T'Class at our
point of execution, then "print Obj.N" will display the integer field
defined in Top_T's declaration.

Now, even if we find N in the current view, we still have to get a
fixed type: for instance, the record can be unconstrained and we still
need a fixed type to get the proper offset to each field. That is
to say, in this case:

   type Dyn_Top_T (Disc : Natural) is tagged record
      S : Integer_Array (1 .. Disc) := (others => Disc);
      N : Integer := 1;
   end record;

   type Dyn_Middle_T is new Dyn_Top.Dyn_Top_T with record
      N : Character := 'a';
      U : Integer := 42;
   end record;

If we have an object Obj of type Dyn_Middle_T and we want to display
U, we don't need to build, from its tag, a real type with all its real
fields. In other words, we don't need to add the parent components:
Disc, S, and the integer N. We only need to access U and it is
directly visible in Dyn_Middle_T. So no tag handling. However, we do
need to build a fixed-size type to have the proper offset to U (since
this offset to U depends on the size of Obj.S, which itself is dynamic
and depends on the value of Obj.Disc).

We accidentally lost some of this treatment when we introduced the
resolution of homonyms. This patch re-install this part by uncoupling
the tag resolution from the "fixing" of variable-length components.

This change also slightly simplifies the non-tagged case: in the
non-tagged case, no need to set check_tag to 1, since we already know
that there is no tag.

gdb/ChangeLog:

	* ada-lang.c (ada_value_struct_elt): Call ada_to_fixed_type
	with check_tag to 1 if and only if the type is tagged and the
	component being searched cannot been found in the current
	view. Otherwise, always call ada_to_fixed_type with
	check_tag to 0.

gdb/testsuite/ChangeLog:

	* gdb.ada/same_component_name: Add test for case of tagged record
	with variable-length fields.
2018-09-10 11:37:52 -04:00
Xavier Roirand
d91e9ea81d (Ada) Cleanup code by using ada_is_access_to_unconstrained_array call.
This patch just avoids code duplication by using a function we
introduced recently (ada_is_access_to_unconstrained_array).

gdb/ChangeLog:

    * ada-lang.c (ada_is_access_to_unconstrained_array): Remove static
    declaration.
    * ada-lang.h: add ada_is_access_to_unconstrained_array prototype.
    * ada-varobj.c (ada_varobj_get_number_of_children,
    ada_varobj_describe_child, ada_value_is_changeable_p): Cleanup code.

Tested on x86_64-linux.
No new testcase provided, as this is just a refactoring.
2018-09-10 11:35:58 -04:00
Xavier Roirand
b9c50e9a9a (Ada/MI) Fix -var-evaluate-expression for access to unconstrained arrays
Using this Ada code:

   type String_Access is access String;
   type Array_Of_String is array (1 .. 2) of String_Access;
   Aos : Array_Of_String := (new String'("ab"), new String'("cd"));

In GDB/MI mode, create a variable which type is Aos, evaluate it:

(gdb) -var-create var1 * Aos
^done,name="var1",numchild="2",value="[2]",type="bar.array_of_string",thread-id="1",has_more="0"

Now print it:

(gdb) -var-list-children 1 var1
^done,numchild="2",children=[child={name="var1.1",exp="1",numchild="1",value="[2] \"ab\"", type="bar.string_access",thread-id="1"},child={name="var1.2",exp="2",numchild="1",value="[2] \"cd\"", type="bar.string_access",thread-id="1"}],has_more="0"

But printed fields "value" are wrong, since it should be:

^done,numchild="2",children=[child={name="var1.1",exp="1",numchild="1",value="0x634018",type="bar.string_access",thread-id="1"},child={name="var1.2",exp="2",numchild="1",value="0x634038",type="bar.string_access",thread-id="1"}],has_more="0"^M

Print each child of var1:

(gdb) -var-evaluate-expression var1.1
^done,value="[2] \"ab\""
(gdb) -var-evaluate-expression var1.2
^done,value="[2] \"cd\""

Whereas it should be

(gdb) -var-evaluate-expression var1.1
^done,value="0x635018"
(gdb) -var-evaluate-expression var1.2
^done,value="0x635038"

This patch fixes this.

gdb/ChangeLog:

        * ada-lang.c (ada_value_subscript): Handle case when parameter is
        an array of access to unconstrained array.

testsuite/ChangeLog

        * gdb.ada/mi_string_access.exp: New testcase.
        * gdb.ada/mi_string_access/bar.adb: New file.
        * gdb.ada/mi_string_access/pck.adb: New file.
        * gdb.ada/mi_string_access/pck.asd: New file.

Tested on x86_64-linux.
2018-09-10 11:33:32 -04:00
Xavier Roirand
736ade86ea (Ada) New function ada_is_access_to_unconstrained_array
Add a new function to check if a given type is an access to an
unconstrained array. This function contains code that is present only
once in the current sources but will be used in a future patch.

gdb/ChangeLog:

        * ada-lang.c (ada_is_access_to_unconstrained_array): New function.
        (ada_check_typedef): Use it.

Tested on x86_64-linux.
2018-09-10 11:32:00 -04:00
Joel Brobecker
424da6cf3b (Ada) fix handling of expression with parameterless function call
Consider the following function, which takes no parameter and returns
an integer:

    function Something return Integer;

For the purpose of this discussion, our function has been implemented
to always return 124:

    function Something return Integer is
    begin
       return 124;
    end Something;

In Ada, such function can been called without using the parentheses.
For instance, in the statement below, variable My_Value is assigned
the returned value from the call to Something:

    My_Value := Something;

The Ada expression interpeter in GDB supports this case, as we can
see below:

    (gdb) print something
    $1 = 124

However, we get fairly strange results when trying to use this feature
as part of a larger expression. For instance:

    (gdb) print something + 1
    $2 = 248

The problem occurs while doing the resolution pass of the expression.
After prefixying the expression, we obtain the following expression:

    0  BINOP_ADD
    1    OP_VAR_VALUE          Block @0x2021550, symbol @0x20213a0 (pck.something)
    5    OP_LONG               Type @0x1e3c170 (int), value 1 (0x1)

The resolution pass is then expected to remove the OP_VAR_VALUE
entry, and replace it with an OP_FUNCALL. This is what the call
to replace_operator_with_call in ada-lang.c::resolve_subexp is
expected to do:

      if (deprocedure_p
          && (TYPE_CODE (SYMBOL_TYPE (exp->elts[pc + 2].symbol))
              == TYPE_CODE_FUNC))
        {
          replace_operator_with_call (expp, pc, 0, 0,
                                      exp->elts[pc + 2].symbol,
                                      exp->elts[pc + 1].block);
          exp = expp->get ();
        }

The problem is that we're passing OPLEN (zero -- 4th parameter in
the call), and so replace_operator_with_call ends up removing zero
element from our expression, and inserting the corresponding OP_FUNCALL
instead. As a result, instead of having the OP_LONG (1) as the second
argument of the BINOP_ADD, it is now the OP_VAR_VALUE that we were
meant to replace. That OP_VAR_VALUE then itself gets transformed into
an OP_FUNCALL, with the same issue, and eventually, the resolved
expression now looks like this:

     0  BINOP_ADD
     1    OP_FUNCALL            Number of args: 0
     4      OP_VAR_VALUE          Block @0x2021550, symbol @0x20213a0 (pck.something)
     8    OP_FUNCALL            Number of args: 0
    11      OP_VAR_VALUE          Block @0x2021550, symbol @0x20213a0 (pck.something)
    15  OP_VAR_VALUE          Block @0x2021550, symbol @0x20213a0 (pck.something)
    19  OP_LONG               Type @0x1e3c170 (int), value 1 (0x1)

This explains why we get twice the result of the function call
instead of its value plus one. The extra entries in the expression
at the end are just ignored.

This patch fixes the issue by calling replace_operator_with_call
with the correct OPLEN equal to the size of an OP_VAR_VALUE (4).

gdb/ChangeLog:

        * ada-lang.c (resolve_subexp): Pass correct OPLEN in call to
        replace_operator_with_call.

gdb/testsuite/ChangeLog:

        * gdb.ada/expr_with_funcall: New testcase.
2018-09-08 17:51:36 -04:00
Joel Brobecker
95f39a5b27 ada-lang.c::ada_value_cast: remove unnecessary parentheses
No other code change.

gdb/ChangeLog:

        * ada-lang.c (ada_value_cast): Remove unnecessary parentheses.
2018-09-08 17:50:00 -04:00
Joel Brobecker
d8ce91275e minor reformatting in ada-lang.c::ada_to_fixed_value
The arguments in the call to ada_to_fixed_value_create where
improperly aligned. But I also noticed that all the arguments
do fit on a single-line (up to 79 characters). So this patch
just fixes the code by putting everything on that same line.

gdb/ChangeLog:

        * ada-lang.c (ada_to_fixed_value): Minor reformatting in
        call to ada_to_fixed_value_create.
2018-09-08 17:48:04 -04:00
Jerome Guitton
0d81f350ec Handle PPC64 function descriptor in Ada decoding
On PPC64, the entry point of the function "FN" is ".FN" when a function
descriptor is used. One of the consequences of this is that GDB then
presents the name of the function to the user (eg: in backtraces) with
the leading dot, which is a low-level internal detail that the user
should not be seeing.  The Ada decoding should strip it.

gdb/ChangeLog:

	* ada-lang.c (ada_decode): strip dot prefix in symbol name.

No testcase added, as a number of existing testcases should already
demonstrate that problem.
2018-09-08 17:47:11 -04:00
Joel Brobecker
57aff202b4 (Ada) "catch assert" spurious internal error
We noticed while debugging a program compiled without assertions
enabled and using an older compiler that inserting a catchpoint
on failed assertions would cause an internal error:

    (gdb) catch assert
    ../../src/gdb/ada-lang.c:13321: internal-error: ada_exception_sal:
    Assertion`sym != NULL' failed.
    A problem internal to GDB has been detected,

This is due to a combination of factors:

  1. With older versions of the compiler, the function used as a hook
     was provided by a unit that's different from the unit which
     provides the hooks for the other exception catchpoints.

  2. The program either does not use any assertion, or is compiled
     without the assertions enabled.

With newer versions of the compiler, all such functions are provided
by the same unit, so should normally always be available.  However,
there can still be reasons why this is not the case. Consider, for
instance, the case of a runtime compiled with -ffunction-sections,
in which case the hook might be eliminated unless assertions are
used and enabled.

So this patch transforms the internal error into a simple error.

gdb/ChangeLog:

        * ada-lang.c (ada_exception_sal): Replace gdb_assert calls
        by calls to error.

No testcase added, as the existing testcase gdb.ada/catch_ex.exp
should trigger it when using an older version of GNAT as the Ada
compiler.
2018-09-08 17:46:08 -04:00
Joel Brobecker
fb44b1a737 (Ada) infinite loop when hitting unhandled exception catchpoint
When debugging a program compiled with an older version of GNAT,
hitting a catchpoint on unhandled exceptions can caused GDB to
got into an infinite loop. This happens while trying to find
the name of the exception that was raised. For that, it searches
for a frame corresponding to a specific function we know gets
called during the exeption handling.

In our particular case, the compiler was too old, and so GDB never
found that frame, and eventually got past the "main" subprogram,
all the way to system frames, where no symbol was available.
As a result, the code addresses could not be resolved into
a function name, leading to the infinite loop because of
a misplaced update of our loop variable "fi":

    while (fi != NULL)
      {
        char *func_name;
        enum language func_lang;

        find_frame_funname (fi, &func_name, &func_lang, NULL);
        if (func_name != NULL)
          {
            make_cleanup (xfree, func_name);

            if (strcmp (func_name,
                        data->exception_info->catch_exception_sym) == 0)
              break; /* We found the frame we were looking for...  */
            fi = get_prev_frame (fi);
          }
      }

If FUNC_NAME is NULL, then FI never gets updated ever after!

gdb/ChangeLog:

        * ada-lang.c (ada_unhandled_exception_name_addr_from_raise):
        Move update of loop variable "fi".

No testcase added, as the existing testcase gdb.ada/catch_ex.exp
should trigger it when using an older version of GNAT as the Ada
compiler.
2018-09-08 17:45:25 -04:00
Joel Brobecker
2a62dfa93f (Ada) assigning packed array aggregate with variable as component
Consider a variable "PRA" defined as a packed array of packed
records as follow:

   subtype Int is Integer range 0 .. 7;
   type Packed_Rec is record
      X, Y : Int;
      W    : Integer;
   end record;
   pragma Pack (Packed_Rec);
   type Packed_RecArr is array (Integer range <>) of Packed_Rec;
   pragma Pack (Packed_RecArr);

   PRA : Packed_RecArr (1 .. 3);

Consider also a variable "PR", which is a Packed_Rec record,
declared as follow:

   PR : Packed_Rec := (2, 2, 2);

Trying to assign a new value to PRA using an aggregate expression
where one of the components is our variable PR yields the wrong
result on big-endian machines (e.g. on ppc-linux):

    (gdb) p pra := (pr, (2,2,2), (2,2,2))
    $6 = ((x => 1, y => 0, w => 8), [...]

On the other hand, replacing "pr" by "(2,2,2)" does work.

I tracked the issue down to the bit offset we use to extract
the value of "PR" and copy it inside PRA. in value_assign_to_component,
we have:

  if (gdbarch_bits_big_endian (get_type_arch (value_type (container))))
    move_bits ([target buffer], [bit offset in target buffer],
               [source buffer where PR is stored],
               TYPE_LENGTH (value_type (component)) * TARGET_CHAR_BIT - bits,
               bits, 1);

The issue is with the third-to-last argument, which provides the bit
offset where the value of PR is stored relative to its start address,
and therefore the bit offset relative to the start of the source
buffer passed as the previous argument.

In our case, component is a 38bit packed record whose TYPE_LENGTH
is 5 bytes, so the bit-offset that gets calculated is 2 (bits).
However, that formula only really applies to scalars, whereas
in our case, we have a record (struct). The offset in the non-scalar
case should be zero.

gdb/ChangeLog:

        * ada-lang.c (value_assign_to_component): In the case of
        big-endian targets, extract the bits of the given VAL
        using an src_offset of zero if container is not a scalar.

gdb/testsuite/ChangeLog:

        * gdb.ada/packed_array_assign: New testcase.
2018-09-08 17:44:36 -04:00
Keith Seitz
7e41c8db84 Use block_symbol in linespec APIs
This patch changes the linespec.c APIs to use block_symbol instead of just
a symbol.  lookup_symbol et al already return block_symbol's.

gdb/ChangeLog:

	* linespec.c (struct linespec) <function_symbols, label_symbols>:
	Change to vector of block_symbol.  Update all users.
	(struct collect_info) <symbols>: Likewise.
	(collect_info::add_symbol): Take block_symbol as argument.
	Update all callers.
	(decode_compound_collector) <m_symbols>: Change type to vector
	of block_symbol.  Update all users.
	(decode_compound_collector::operator ()): Change parameter type
	to block_symbol.
	(find_method, find_function_symbols, find_linespec_symbols)
	(find_label_symbols_in_block, find_label_symbols): Change symbol
	vectors to block_symbol vectors.
	* symtab.h (symbol_found_callback_ftype): Change parameter type to
	block_symbol.
2018-08-29 15:12:23 -07:00
Simon Marchi
39e7af3e4b Make ada-lang.c::add_angle_brackets return an std::string
This removes the need for manual memory management.  It may also be a
bit more efficient, since the returned string can be moved all the way
into the destination, in ada_lookup_name_info::matches.

gdb/ChangeLog:

	* ada-lang.c (add_angle_brackets): Return std::string.
2018-08-26 11:53:47 -04:00
Tom Tromey
89fbedf3ab Remove "repeat" argument from command_line_input
After the previous patch, all callers pass 0 as the repeat argument to
command_line_input.  So, this patch removes it.

gdb/ChangeLog
2018-08-16  Tom Tromey  <tom@tromey.com>

	* top.c (read_command_file): Update.
	(command_line_input): Remove "repeat" argument.
	* ada-lang.c (get_selections): Update.
	* linespec.c (decode_line_2): Update.
	* defs.h (command_line_input): Remove argument.
	* cli/cli-script.c (read_next_line): Update.
	* python/py-gdb-readline.c: Update.
2018-08-17 16:39:06 -06:00
Simon Marchi
528e15722b Replace some uses of xstrprintf with string_printf
This patch replaces some simple uses of xstrprintf with with
string_printf, removing the need to do manual memory freeing.

The change in ada-lang.c fixes an apparent memory leak.

Regtested on the buildbot.

gdb/ChangeLog:

	* common/filestuff.h (gdb_fopen_cloexec): New overload.
	(gdb_open_cloexec): Likewise.
	* nat/linux-osdata.c (command_from_pid): Use string_printf.
	(commandline_from_pid): Likewise.
	(linux_xfer_osdata_threads): Likewise.
	(linux_xfer_osdata_fds): Likewise.
	* ada-lang.c (is_package_name): Likewise.
	* auxv.c (procfs_xfer_auxv): Likewise.
	* breakpoint.c (print_one_breakpoint_location): Use
	uiout::field_fmt.
	(print_one_catch_solib): Use string_printf.
	* coff-pe-read.c (add_pe_exported_sym): Likewise.
	(add_pe_forwarded_sym): Likewise.
	* dwarf2read.c (create_type_unit_group): Likewise.
	(build_error_marker_type): Likewise.
	* infcall.c (get_function_name): Likewise.
	* valprint.c (print_converted_chars_to_obstack): Likewise.
	* xtensa-tdep.c (xtensa_register_type): Likewise.
2018-08-07 17:43:08 -04:00
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.
2018-07-22 13:20:01 -06:00
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.
2018-07-03 11:36:42 -06:00
Tom Tromey
69d340c684 Remove la_error
While working on the parser code, I noticed that yyerror is exported
from each parser.  It is used by this code in parse.c:

   TRY
     {
       if (lang->la_parser (&ps))
         lang->la_error (NULL);
     }

However, it seems to me that la_error will never be called here,
because in every case, la_parser throws an exception on error -- each
implementation of yyerror just calls error.

So, this patch removes la_error and makes all the yyerror functions
static.  This is handy primarily because it makes it simpler to make
the expression parsers pure.

Tested by the buildbot.

gdb/ChangeLog
2018-06-18  Tom Tromey  <tom@tromey.com>

	* rust-lang.h (rust_yyerror): Don't declare.
	* rust-lang.c (rust_language_defn): Update.
	* rust-exp.y (yyerror): Now static.
	* parse.c (parse_exp_in_context_1): Update.
	* p-lang.h (p_yyerror): Don't declare.
	* p-lang.c (p_language_defn): Update.
	* p-exp.y (yyerror): Now static.
	* opencl-lang.c (opencl_language_defn): Update.
	* objc-lang.c (objc_language_defn): Update.
	* m2-lang.h (m2_yyerror): Don't declare.
	* m2-lang.c (m2_language_defn): Update.
	* m2-exp.y (yyerror): Now static.
	* language.h (struct language_defn) <la_error>: Remove.
	* language.c (unk_lang_error): Remove.
	(unknown_language_defn, auto_language_defn): Remove.
	* go-lang.h (go_yyerror): Don't declare.
	* go-lang.c (go_language_defn): Update.
	* go-exp.y (yyerror): Now static.
	* f-lang.h (f_yyerror): Don't declare.
	* f-lang.c (f_language_defn): Update.
	* f-exp.y (yyerror): Now static.
	* d-lang.h (d_yyerror): Don't declare.
	* d-lang.c (d_language_defn): Update.
	* d-exp.y (yyerror): Now static.
	* c-lang.h (c_yyerror): Don't declare.
	* c-lang.c (c_language_defn, cplus_language_defn)
	(asm_language_defn, minimal_language_defn): Update.
	* c-exp.y (yyerror): Now static.
	* ada-lang.h (ada_yyerror): Don't declare.
	* ada-lang.c (ada_language_defn): Update.
	* ada-exp.y (yyerror): Now static.
2018-06-18 12:29:15 -06:00
Tom Tromey
54d343a240 Remove last Ada cleanups
This removes the last cleanups from the Ada code by changing
ada_lookup_symbol_list's out parameter to be a std::vector, and then
fixing up the fallout.

This is a relatively shallow change.  Deeper changes are possible, for
example (1) changing various other functions to accept a vector rather
than a pointer, or (2) changing ada_lookup_symbol_list to return the
vector and omitting the length entirely.

Tested by the buildbot, but I'll wait for Joel to test these as well.

gdb/ChangeLog
2018-06-04  Tom Tromey  <tom@tromey.com>

	* ada-lang.h (ada_lookup_symbol_list): Update.
	* ada-lang.c (resolve_subexp): Update.
	(symbols_are_identical_enums): Change type of syms.  Remove nsyms
	parameter.
	(remove_extra_symbols, remove_irrelevant_renamings): Likewise.
	(ada_lookup_symbol_list_worker, ada_lookup_symbol_list): Change
	results parameter to std::vector.
	(ada_iterate_over_symbols, ada_lookup_symbol, get_var_value):
	Update.
	* ada-exp.y (block_lookup): Update.
	(select_possible_type_sym): Change type of syms.  Remove nsyms
	parameter.
	(write_var_or_type, write_name_assoc): Update.
2018-06-04 15:33:28 -06:00
Tom Tromey
a737d952e0 Remove type_name_no_tag and rename type_name_no_tag_or_error
type_name_no_tag is just a plain wrapper for TYPE_NAME now, so this
patch removes it.  And, because tag names no longer exist, this
renames type_name_no_tag_or_error to type_name_or_error.

gdb/ChangeLog
2018-06-01  Tom Tromey  <tom@tromey.com>

	* valops.c (value_cast_structs, destructor_name_p): Update.
	* symtab.c (gdb_mangle_name): Update.
	* stabsread.c (define_symbol, read_cpp_abbrev, read_baseclasses):
	Update.
	* p-valprint.c (pascal_object_is_vtbl_ptr_type)
	(pascal_object_print_value_fields, pascal_object_print_value):
	Update.
	* p-typeprint.c (pascal_type_print_derivation_info): Update.
	* linespec.c (find_methods): Update.
	* gdbtypes.h (type_name_no_tag): Remove.
	(type_name_or_error): Rename from type_name_no_tag_or_error.
	* gdbtypes.c (type_name_no_tag): Remove.
	(type_name_or_error): Rename from type_name_no_tag_or_error.
	(lookup_struct_elt_type, check_typedef): Update.
	* expprint.c (print_subexp_standard): Update.
	* dwarf2read.c (dwarf2_add_field, load_partial_dies): Update.
	* d-namespace.c (d_lookup_nested_symbol): Update.
	* cp-valprint.c (cp_is_vtbl_ptr_type, cp_print_value_fields)
	(cp_print_class_member): Update.
	* cp-namespace.c (cp_lookup_nested_symbol): Update.
	* completer.c (add_struct_fields): Update.
	* c-typeprint.c (cp_type_print_derivation_info)
	(c_type_print_varspec_prefix, c_type_print_base_struct_union):
	Update.
	* ada-lang.c (parse_old_style_renaming, xget_renaming_scope)
	(ada_prefer_type, ada_is_exception_sym): Update.
2018-06-01 10:19:55 -06:00
Tom Tromey
e86ca25fd6 Remove TYPE_TAG_NAME
TYPE_TAG_NAME has been an occasional source of confusion and bugs.  It
seems to me that it is only useful for C and C++ -- but even there,
not so much, because at least with DWARF there doesn't seem to be any
way to wind up with a type where the name and the tag name are both
non-NULL and different.

So, this patch removes TYPE_TAG_NAME entirely.  This should save a
little memory, but more importantly, it simplifies this part of gdb.

A few minor test suite adjustments were needed.  In some situations
the new code does not yield identical output to the old code.

gdb/ChangeLog
2018-06-01  Tom Tromey  <tom@tromey.com>

	* valops.c (enum_constant_from_type, value_namespace_elt)
	(value_maybe_namespace_elt): Update.
	* valarith.c (find_size_for_pointer_math): Update.
	* target-descriptions.c (make_gdb_type): Update.
	* symmisc.c (print_symbol): Update.
	* stabsread.c (define_symbol, read_type)
	(complain_about_struct_wipeout, add_undefined_type)
	(cleanup_undefined_types_1): Update.
	* rust-lang.c (rust_tuple_type_p, rust_slice_type_p)
	(rust_range_type_p, val_print_struct, rust_print_struct_def)
	(rust_internal_print_type, rust_composite_type)
	(rust_evaluate_funcall, rust_evaluate_subexp)
	(rust_inclusive_range_type_p): Update.
	* python/py-type.c (typy_get_tag): Update.
	* p-typeprint.c (pascal_type_print_base): Update.
	* mdebugread.c (parse_symbol, parse_type): Update.
	* m2-typeprint.c (m2_long_set, m2_record_fields, m2_enum):
	Update.
	* guile/scm-type.c (gdbscm_type_tag): Update.
	* go-lang.c (sixg_string_p): Update.
	* gnu-v3-abi.c (build_gdb_vtable_type, build_std_type_info_type):
	Update.
	* gdbtypes.h (struct main_type) <tag_name>: Remove.
	(TYPE_TAG_NAME): Remove.
	* gdbtypes.c (type_name_no_tag): Simplify.
	(check_typedef, check_types_equal, recursive_dump_type)
	(copy_type_recursive, arch_composite_type): Update.
	* f-typeprint.c (f_type_print_base): Update.  Print "Type" prefix
	in summary mode when needed.
	* eval.c (evaluate_funcall): Update.
	* dwarf2read.c (fixup_go_packaging, read_structure_type)
	(process_structure_scope, read_enumeration_type)
	(read_namespace_type, read_module_type, determine_prefix): Update.
	* cp-support.c (inspect_type): Update.
	* coffread.c (process_coff_symbol, decode_base_type): Update.
	* c-varobj.c (c_is_path_expr_parent): Update.
	* c-typeprint.c (c_type_print_base_struct_union): Update.
	(c_type_print_base_1): Update.  Print struct/class/union/enum in
	summary when using C language.
	* ax-gdb.c (gen_struct_ref, gen_namespace_elt)
	(gen_maybe_namespace_elt): Update.
	* ada-lang.c (ada_type_name): Simplify.
	(empty_record, ada_template_to_fixed_record_type_1)
	(template_to_static_fixed_type)
	(to_record_with_fixed_variant_part, ada_check_typedef): Update.

gdb/testsuite/ChangeLog
2018-06-01  Tom Tromey  <tom@tromey.com>

	* gdb.xml/tdesc-regs.exp (load_description): Update expected
	results.
	* gdb.dwarf2/method-ptr.exp: Set language to C++.
	* gdb.dwarf2/member-ptr-forwardref.exp: Set language to C++.
	* gdb.cp/typeid.exp (do_typeid_tests): Update type_re.
	* gdb.base/maint.exp (maint_pass_if): Update.
2018-06-01 10:19:55 -06:00
Joel Brobecker
241db429d5 fix "stale cleanup" internal-warning when using "catch assert" command
Trying to insert a catchpoint on all Ada assertions now triggers
the following internal warning regardless of the situation. For
instance, not even debugging any program:

    (gdb) catch assert
    /[...]/gdb/common/cleanups.c:264: internal-warning:
    restore_my_cleanups has found a stale cleanup

This is due to a small bug in the following C++-ification commit:

    commit bc18fbb575
    Author: Tom Tromey <tom@tromey.com>
    Date:   Fri May 18 15:58:50 2018 -0600
    Subject: Change ada_catchpoint::excep_string to be a std::string

The stale cleanup in question is the following one in top.c:execute_command:

    cleanup_if_error = make_bpstat_clear_actions_cleanup ();

This cleanup is expected to be discarded if there are no exception.
There were no GDB exception; however, a C++ exception was triggered,
because we passed NULL as the excep_string argument when calling
create_ada_exception_catchpoint, which is a reference to a const
string. So we get a C++ exception during the std::string constructor,
which propagates up, causing the cleanup to unexpectedly remain
in the cleanup chain.

This patch fixes the immediate issue of the incorrect call to
create_ada_exception_catchpoint.

gdb/ChangeLog:

        * ada-lang.c (catch_assert_command): Pass empty string instead
        of NULL for excep_string argument.

Tested on x86_64-linux, fixes the following failures:

  * catch_assert_if.exp: insert catchpoint on failed assertions with condition
  * catch_ex.exp: insert catchpoint on failed assertions

This also fixes about a dozen UNRESOLVED tests that are a consequence
of the two tests above failing and crashing GDB.
2018-05-22 10:25:50 -04:00
Tom Tromey
bc18fbb575 Change ada_catchpoint::excep_string to be a std::string
This changes ada_catchpoint::excep_string to be a std::string and then
fixes up all t he users.

This found a memory leak in catch_ada_exception_command_split, where
"cond" was copied but never freed.

I changed the type of the "cond_string" argument to
catch_ada_exception_command_split to follow the rule that out
parameters should be pointers and not references.

This patch enables the removal of some cleanups and also the function
ada_get_next_arg.

ChangeLog
2018-05-21  Tom Tromey  <tom@tromey.com>

	* mi/mi-cmd-catch.c (mi_cmd_catch_assert)
	(mi_cmd_catch_exception, mi_cmd_catch_handlers): Update.
	* ada-lang.h (create_ada_exception_catchpoint): Update.
	* ada-lang.c (struct ada_catchpoint) <excep_string>: Now a
	std::string.
	(create_excep_cond_exprs, ~ada_catchpoint)
	(should_stop_exception, print_one_exception)
	(print_mention_exception, print_recreate_exception): Update.
	(ada_get_next_arg): Remove.
	(catch_ada_exception_command_split): Use std::string.  Change type
	of "excep_string", "cond_string".
	(catch_ada_exception_command): Update.
	(create_ada_exception_catchpoint): Change type of excep_string.
	(ada_exception_sal): Remove excep_string parameter.
	(~ada_catchpoint): Remove.
2018-05-21 10:01:15 -06:00
Tom Tromey
790217f673 Remove cleanup from ada_collect_symbol_completion_matches
ada_collect_symbol_completion_matches installs a null_cleanup but not
any other cleanups.  This patch removes it.

ChangeLog
2018-05-21  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (ada_collect_symbol_completion_matches): Remove
	cleanup.
2018-05-21 10:01:15 -06:00
Tom Tromey
6f46ac8531 Remove cleanup from ada-lang.c
This removes a cleanup from ada-lang.c by having
ada_exception_message_1 return a unique_xmalloc_ptr.

ChangeLog
2018-05-21  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (ada_exception_message_1, ada_exception_message):
	Return unique_xmalloc_ptr.
	(print_it_exception): Update.
2018-05-21 10:01:14 -06:00
Simon Marchi
e39db4db7c Use XOBNEW/XOBNEWVEC/OBSTACK_ZALLOC when possible
Since XOBNEW/XOBNEWVEC/OBSTACK_ZALLOC are now poisoned to prevent using
them with non-trivially-constructible objects, it is worth using them
over plain obstack_alloc.  This patch changes the locations I could find
where we can do that change easily.

gdb/ChangeLog:

	* ada-lang.c (cache_symbol): Use XOBNEW and/or XOBNEWVEC and/or
	OBSTACK_ZALLOC.
	* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
	* hppa-tdep.c (hppa_init_objfile_priv_data): Likewise.
	* mdebugread.c (mdebug_build_psymtabs): Likewise.
	(add_pending): Likewise.
	(parse_symbol): Likewise.
	(parse_partial_symbols): Likewise.
	(psymtab_to_symtab_1): Likewise.
	(new_psymtab): Likewise.
	(elfmdebug_build_psymtabs): Likewise.
	* minsyms.c (terminate_minimal_symbol_table): Likewise.
	* objfiles.c (get_objfile_bfd_data): Likewise.
	(objfile_register_static_link): Likewise.
	* psymtab.c (allocate_psymtab): Likewise.
	* stabsread.c (read_member_functions): Likewise.
	* xcoffread.c (xcoff_end_psymtab): Likewise.
2018-05-20 21:07:03 -04:00
Tom Tromey
862d101ada Remove cleanup from print_mention_exception
This removes a cleanup from print_mention_exception by using
string_printf.

ChangeLog
2018-05-04  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (print_mention_exception): Use std::string.
2018-05-04 12:12:16 -06:00
Tom Tromey
cb7de75eb3 Return std::string from ada_exception_catchpoint_cond_string
This changes ada_exception_catchpoint_cond_string to return a
std::string, allowing for the removal of a cleanup in
create_excep_cond_exprs.

ChangeLog
2018-05-04  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (create_excep_cond_exprs): Update.
	(ada_exception_catchpoint_cond_string): Use std::string.
2018-05-04 12:12:16 -06:00
Tom Tromey
49d83361cd Remove cleanup from old_renaming_is_invisible
This removes a cleanup from ada-lang.c by changing xget_renaming_scope
to return a std::string.

ChangeLog
2018-05-04  Tom Tromey  <tom@tromey.com>

	* ada-lang.c (xget_renaming_scope): Return std::string.
	(old_renaming_is_invisible): Update.
2018-05-04 12:12:16 -06:00
Tom Tromey
459a2e4ccf Change streq to return bool
I wanted to use streq with std::unique in another (upcoming) patch in
this seres, so I changed it to return bool.  To my surprise, this lead
to regressions.  The cause turned out to be that streq was used as an
htab callback -- by casting it to the correct function type.  This
sort of cast is invalid, so this patch adds a variant which is
directly suitable for use by htab.  (Note that I did not add an
overload, as I could not get that to work with template deduction in
the other patch.)

ChangeLog
2018-04-05  Tom Tromey  <tom@tromey.com>

	* completer.c (completion_tracker::completion_tracker): Remove
	cast.
	(completion_tracker::discard_completions): Likewise.
	* breakpoint.c (ambiguous_names_p): Remove cast.
	* ada-lang.c (_initialize_ada_language): Remove cast.
	* utils.h (streq): Update.
	(streq_hash): Add new declaration.
	* utils.c (streq): Return bool.
	(streq_hash): New function.
2018-04-05 07:39:36 -06:00
Tom Tromey
e83e4e2402 Change target_read_string to use unique_xmalloc_ptr
This changes the out parameter of target_read_string to be a
unique_xmalloc_ptr.  This avoids a cleanup and sets the stage for more
cleanup removals.

This patch also removes a seemingly needless alloca from
print_subexp_standard.

gdb/ChangeLog
2018-03-30  Tom Tromey  <tom@tromey.com>

	* windows-nat.c (handle_output_debug_string, handle_exception):
	Update.
	* target.h (target_read_string): Update.
	* target.c (target_read_string): Change "string" to
	unique_xmalloc_ptr.
	* solib-svr4.c (open_symbol_file_object, svr4_read_so_list):
	Update.
	* solib-frv.c (frv_current_sos): Update.
	* solib-dsbt.c (dsbt_current_sos): Update.
	* solib-darwin.c (darwin_current_sos): Update.
	* linux-thread-db.c (inferior_has_bug): Update.
	* expprint.c (print_subexp_standard) <case OP_OBJC_MSGCALL>:
	Update.  Remove alloca.
	* ada-lang.c (ada_main_name): Update.
2018-03-30 13:22:58 -06:00
Joel Brobecker
3fcded8f30 set varsize-limit: New GDB setting for maximum dynamic object size
This is a command we somehow forgot to contribute at the time the Ada
language was first contributed to the FSF. This command allows
the user to change the maximum size we allow when reading memory
from dynamic objects (the default is 65536 bytes).

At the moment, this limit is only used by Ada, and so the implementation
is kept inside ada-lang.c. However, it is conceivable that other language
might want to use it also to handle the same kind of issues; for instance,
this might be useful when handling dynamic types in C. So the name
of the setting was made language-neutral, to allow for this.

Note that an alias for "set var" needs to be introduced as well.
We are not adding a test for that, since this is a feature that is
already exercized by numerous existing tests.

gdb/ChangeLog

        * NEWS: Add entry describing new "set|show varsize-limit" command.
        * ada-lang.c (_initialize_ada_language): Add "set/show varsize-limit"
        command.
        * printcmd.c (_initialize_printcmd): Add "set var" alias of
        "set variable".

gdb/doc/ChangeLog:

        * gdb.texinfo (Ada Settings): New subsubsection.

gdb/testsuite/ChangeLog:

        * gdb.ada/varsize_limit: New testcase.

Tested on x86_64-linux.
2018-03-27 10:17:45 -04:00
Joel Brobecker
59cc4834e5 problem looking up some symbols when they have a linkage name
This patch fixes a known failure in gdb.ada/maint_with_ada.exp
(maintenance check-psymtabs). Another way to witness the same
issue is by considering the following Ada declarations...

   type Wrapper is record
      A : Integer;
   end record;
   u00045 : constant Wrapper := (A => 16#060287af#);
   pragma Export (C, u00045, "symada__cS");

... which declares a variable name "u00045" but with a linkage
name which is "symada__cS". This variable is a record with one
component, the Ada equivalent of a struct with one field in C.
Trying to print that variable's value currently yields:

    (gdb) p /x <symada__cS>
    'symada(char, signed)' has unknown type; cast it to its declared type

This indicates that GDB was only able to find the minimal symbol,
but not the full symbol. The expected output is:

    (gdb) print /x <symada__cS>
    $1 = (a => 0x60287af)

The error message gives a hint about what's happening: We processed
the symbol through gdb_demangle, which in the case of this particular
symbol name, ends up matching the C++ naming scheme. As a result,
the demangler transforms our symbol name into 'symada(char, signed)',
thus breaking Ada lookups.

This patch fixes the issue by first introducing a new language_defn
attribute called la_store_sym_names_in_linkage_form_p, which is a boolean
to be set to true for the few languages that do not want their symbols
to have their names stored in demangled form, and false otherwise.
We then use this language attribute to skip the call to gdb_demangle
for all languages whose la_store_sym_names_in_linkage_form_p is true.

In terms of the selection of languages for which the new attribute
is set to true, the selection errs on the side of preserving the
existing behavior, and only changes the behavior for the languages
where we are certain storing symbol names in demangling form is not
needed. It is conceivable that other languages might be in the same
situation, but I not knowing in detail the symbol name enconding
strategy, I decided to play it safe and let other language maintainers
potentially adjust their language if it makes sense to do so.

gdb/ChangeLog:

        PR gdb/22670
        * dwarf2read.c (dwarf2_physname): Do not return the demangled
        symbol name if the CU's language stores symbol names in linkage
        format.
        * language.h (struct language_defn)
        <la_store_sym_names_in_linkage_form_p>: New field.  Adjust
        all instances of this struct.

gdb/testsuite/ChangeLog:

        * gdb.ada/maint_with_ada.exp: Remove PR gdb/22670 setup_kfail.

        * gdb.ada/notcplusplus: New testcase.

        * gdb.base/c-linkage-name.c: New file.
        * gdb.base/c-linkage-name.exp: New testcase.

Tested on x86_64-linux.
This also passes AdaCore's internal GDB testsuite.
2018-03-27 09:57:16 -04:00
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.
2018-03-19 09:37:49 -06:00
Joel Brobecker
355c559b74 delete ada-lang.c::ada_to_fixed_value_create advance declaration
This advance declaration really isn't necesary, since the implementation
of this function comes before the first reference to it.

gdb/ChangeLog:

        * ada-lang.c (ada_to_fixed_value_create): Delete advance
        declaration.

Tested by rebuilding GDB.
2018-02-14 22:59:20 -05:00
Joel Brobecker
f98b2e334f Remove references to ada_name_for_lookup (deleted)
This function was deleted on 2017-11-08, but its declaration and
a reference to it in a comment was left behind.  This patch just
removes those.

gdb/ChangeLog:

        * ada-lang.c (name_match_type_from_name): Remove reference to
        ada_name_for_lookup in function's documentation.
        * ada-lang.h (ada_name_for_lookup): Delete declaration.

Tested by rebuilding GDB.
2018-02-14 05:48:48 -05:00
Xavier Roirand
56ecd069f0 (Ada) C++fy conditional string when catching exception.
This commit C++fy the conditional string used when catching Ada exception.

gdb/ChangeLog:

        * ada-lang.c (catch_ada_exception_command_split)
        (create_ada_exception_catchpoint) <cond_string>: Change parameter
        type.  Update code accordingly.
        (catch_ada_exception_command, catch_ada_handlers_command): Use
        C++ string instead of char* for conditional var.
        (catch_ada_assert_command_split) <cond_string>: Change parameter
        type.  Update code accordingly.
        (catch_assert_command): Use C++ string instead of char* for
        conditional var.
        * ada-lang.h (create_ada_exception_catchpoint) <cond_string>:
        Update declaration.
        * mi/mi-cmd-catch.c (mi_cmd_catch_assert, mi_cmd_catch_exception):
        Use std::string instead of char* for condition string.

Tested on x86_64-linux.
2018-01-31 13:42:30 +01:00
Andrew Burgess
aee1fcdf97 gdb: New API for tracking innermost block
This commit is preparation for a later change, at this point there
should be no user visible change.

We currently maintain a global innermost_block which tracks the most
inner block encountered when parsing an expression.

This commit wraps the innermost_block into a new class, and switches all
direct accesses to the variable to use the class API.

gdb/ChangeLog:

	* ada-exp.y (write_var_from_sym): Switch to innermost_block API.
	* ada-lang.c (resolve_subexp): Likewise.
	* breakpoint.c (set_breakpoint_condition) Likewise.
	(watch_command_1) Likewise.
	* c-exp.y (variable): Likewise.
	* d-exp.y (PrimaryExpression): Likewise.
	* f-exp.y (variable): Likewise.
	* go-exp.y (variable): Likewise.
	* m2-exp.y (variable): Likewise.
	* objfiles.c (objfile::~objfile): Likewise.
	* p-exp.y (variable): Likewise.
	* parse.c (innermost_block): Change type.
	* parser-defs.h (class innermost_block_tracker): New.
	(innermost_block): Change to innermost_block_tracker.
	* printcmd.c (display_command): Switch to innermost_block API.
	(do_one_display): Likewise.
	* rust-exp.y (do_one_display): Likewise.
	* symfile.c (clear_symtab_users): Likewise.
	* varobj.c (varobj_create): Switch to innermost_block API, replace
	use of innermost_block with block stored on varobj object.
2018-01-21 15:15:47 +00:00
Pedro Alves
d4c2a405cb Fix gdb.ada/complete.exp's "complete break ada" test (PR gdb/22670)
This patch fixes the regression covered by the test added by:

    commit 344420da6b
    Date: Thu Jan 4 03:30:37 2018 -0500
    Subject: Add "complete break ada" test to gdb.ada/complete.exp

The regression had been introduced by:

    commit b5ec771e60
    Date:   Wed Nov 8 14:22:32 2017 +0000
    Subject: Introduce lookup_name_info and generalize Ada's FULL/WILD name matching

The gist of it is that linespec completion in Ada mode is generating
additional matches that should not appear in the match list
(internally generated symbols, or symbols that should be enclosed
between "<...>").  These extraneous entries have uppercase characters, such as:

    break ada__stringsS
    break ada__strings__R11s
    [etc]

These matches come from minimal symbols.  The problem is that Ada
minsyms end up with no language set (language_auto), and thus we end
up using the generic symbol name matcher for those instead of Ada's.
We already had a special case for in compare_symbol_name to handle
this, but it was limited to expressions, while the case at hand is
completing a linespec.  Fix this by applying the special case to
linespec completion as well.  I.e., remove the EXPRESSION check from
compare_symbol_name.  That alone turns out to not be sufficient still
-- GDB would still show a couple entries that shouldn't be there:

~~
    break ada__exceptions__exception_data__append_info_exception_name__2Xn
    break ada__exceptions__exception_data__exception_name_length__2Xn
~~

The reason is that these minimal symbols end up with their language
set to language_cplus / C++, because those encoded names manage to
demangle successfully as C++ symbols (using an old C++ mangling
scheme):

  $ echo ada__exceptions__exception_data__append_info_exception_name__2Xn | c++filt
  Xn::ada__exceptions__exception_data__append_info_exception_name(void)

It's unfortunate that Ada's encoding scheme doesn't start with some
unique prefix like "_Z" in the C++ Itanium ABI mangling scheme.  For
now, paper over that by treating C++ minsyms as Ada minsyms.

gdb/ChangeLog:
2018-01-10  Pedro Alves  <palves@redhat.com>

        PR gdb/22670
	* ada-lang.c (ada_collect_symbol_completion_matches): If the
	minsym's language is language_auto or language_cplus, pass down
	language_ada instead.
	* symtab.c (compare_symbol_name): Don't frob symbol language here.

gdb/testsuite/ChangeLog:
2018-01-10  Pedro Alves  <palves@redhat.com>

        PR gdb/22670
	* gdb.ada/complete.exp ("complete break ada"): Replace kfail with
	a fail.
2018-01-10 20:46:09 +00:00
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.
2018-01-05 16:07:00 +00:00
Pedro Alves
f98fc17b3a Fix gdb.ada/info_addr_mixed_case.exp (PR gdb/22670)
The comments about mixed case in the testcase are actually a red
herring.  The problem here is that we'd get to
ada_lookup_encoded_symbol with "my_table", which wraps the looked up
name in "<>"s to force a verbatim match, and that in turn disables
wild matching.

Fix this by swapping around the internals of ada_lookup_encoded_symbol
and ada_lookup_symbol, thus avoiding the encoding and
verbatim-wrapping in the ada_lookup_symbol case, the case that starts
with a user-provided lookup name.

Ada encoding is still done of course, in the ada_lookup_name_info
ctor.  This could be also seen as avoiding the double-encoding problem
in a different way.

gdb/ChangeLog:
2018-01-05  Pedro Alves  <palves@redhat.com>

	PR gdb/22670
	* ada-lang.c (ada_lookup_encoded_symbol): Reimplement in terms of
	ada_lookup_symbol.
	(ada_lookup_symbol): Reimplement in terms of
	ada_lookup_symbol_list, bits factored out from
	ada_lookup_encoded_symbol.

gdb/testsuite/ChangeLog:
2018-01-05  Pedro Alves  <palves@redhat.com>

	PR gdb/22670
	* gdb.ada/info_addr_mixed_case.exp: Remove kfail.  Extend test to
	exercise lower case too, and to exercise both full matching and
	wild matching.
2018-01-05 16:01:57 +00:00
Jerome Guitton
7150d33cda (Ada) Fix Length attribute on array access
Consider the following variable "Indexed_By_Enum", declared as
an access to an array whose index type is an enumerated type
whose underlying values have "gaps":

   type Enum_With_Gaps is (LIT0, LIT1, LIT2, LIT3, LIT4);
   for Enum_With_Gaps use (LIT0 => 3,
                           LIT1 => 5,
                           LIT2 => 8,
                           LIT3 => 13,
                           LIT4 => 21);
   for Enum_With_Gaps'size use 16;

   type MyWord is range 0 .. 16#FFFF# ;
   for MyWord'Size use 16;

   type AR is array (Enum_With_Gaps range <>) of MyWord;
   type AR_Access is access AR;

   Indexed_By_Enum : AR_Access :=
     new AR'(LIT1 => 1,  LIT2 => 43, LIT3 => 42, LIT4 => 41);

Trying to print the length (number of elements) of this array using
the 'Length attribute does not work:

    (gdb) print indexed_by_enum'length
    'POS only defined on discrete types

The problem occurs while trying to get the array's index type.
It was using TYPE_INDEX_TYPE for that. It does not work for Ada arrays
in general; use ada_index_type instead.

gdb/ChangeLog:

	* ada-lang.c (ada_array_length): Use ada_index_type instead of
	TYPE_INDEX_TYPE.

gdb/testsuite/ChangeLog:

        * gdb.ada/arr_acc_idx_w_gap: New testcase.

Tested on x86_64-linux.
2018-01-05 03:14:19 -05:00
Joel Brobecker
cc0e770c0d memory error printing component of record from convenience variable
Consider the following situation Ada code:

   type Kind_T is (One, Two, Three);
   type Time_Set_T is array (Kind_T) of Integer;

   type T  is record
      Started    : Time_Set_T;
   end record;

   Null_T : constant T := (Started => (others => 0));

   My_Item : Pck.T := Pck.Null_T;

Trying to print the value of My_Item.Started is no problem:

    (gdb) p item.started
    $1 = (0, 0, 0)

However, if you save My_Item into a convenience variable first,
and then try to print a component of that record, you get
an unexpected memory error, instead of getting the same result.
For instance:

    (gdb) set variable $item := item
    (gdb) p $item.started
    Cannot access memory at address 0x0

The issue occurs when, after we extracted the component from
the convenience variable, we next try to "fix" it (which is
ada-lang speak for resolving the type into a static type).
This is done in ada_to_fixed_value, which delegates to
ada_to_fixed_value_create via:

    val = ada_to_fixed_value_create (value_type (val),
                                     value_address (val), val);

And looking at ada_to_fixed_value_create, we see that:

  struct type *type = ada_to_fixed_type (type0, 0, address, NULL, 1);

  if (type == type0 && val0 != NULL)
    return val0;
  else
    return value_from_contents_and_address (type, 0, address);

The part that interests us, in this case, is the "else" branch,
where we obviously make the implicit assumption that our object
has an address, which is not true, in this case, because we are
actually dealing with a convenience variable.

This patch plugs that hole by adding special handing for situations
where val does not live in memory. In that case, we just create
a not_lval value using val's contents.

gdb/ChangeLog:

        * ada-lang.c (ada_to_fixed_value_create): Add handling of
        the case where VALUE_LVAL (val0) is not lval_memory.

gdb/testsuite/ChangeLog:

        * gdb.ada/convvar_comp: New testcase.

Tested on x86_64-linux.
2018-01-05 02:41:28 -05:00
Xavier Roirand
9f757bf7fc (Ada) New command to stop at start of exception handler.
When using gdb for debugging Ada source code, there are several catchpoint
types you can define in order to stop upon certain conditions.  Let's
use this small example:

procedure Foo is
begin
   begin
      raise Constraint_Error;
   exception
      when Program_Error =>
         null;
      when Constraint_Error =>
         null;
      when others =>
         null;
   end;
end Foo;

One can stop when the exception is being raised by using the exception
catchpoint like below:

(gdb) catch exception
Catchpoint 1: all Ada exceptions
(gdb)

In that case, when running Foo, gdb will stop at the line where the exception
was raised:

   begin
>>>   raise Constraint_Error;
   exception

This patch introduces new type of catchpoint, when the user wants to stop
at the location of the exception handling.
Imagine we want to stop on any exception handled by the program, we can do:

(gdb) catch handlers
Catchpoint 1: all Ada exceptions handlers
(gdb) r
Starting program: /tmp/foo

By doing so, when running Foo, gdb will stop here:

Catchpoint 1, exception at 0x000000000040255a in foo () at foo.adb:25
25          when Constraint_Error =>
(gdb)

It is also possible to stop when the Constraint_Error exception is being
handled in this program.  With this patch, we can use:

(gdb) catch handlers Constraint_Error
Catchpoint 1: `Constraint_Error' Ada exception handlers
(gdb)

Like for other catchpoint, you can set a condition when adding a catchpoint
on exception handlers.
Here the handlers catchpoint checks Global_Var:

(gdb) catch handlers Constraint_Error if Global_Var /= 0

gdb/ChangeLog:

        * ada-lang.h (ada_exception_catchpoint_kind) <ada_catch_handlers>:
        Add field.
        * ada-lang.c (struct exception_support_info) <catch_handlers_sym>:
        Add field.
        (default_exception_support_info) <catch_handlers_sym>: Add field.
        (exception_support_info_fallback) <catch_handlers_sym>: Add field.
        (ada_exception_name_addr_1): Add "catch handlers" handling.
        (ada_exception_catchpoint_cond_string) <ex>: New parameter.
        Update all callers.
        (create_excep_cond_exprs) <ex>: Add parameter.
        (re_set_exception): Update create_excep_cond_exprs call.
        (print_it_exception, print_one_exception, print_mention_exception)
        (print_recreate_exception): Add "catch handler" handling.
        (allocate_location_catch_handlers, re_set_catch_handlers)
        (check_status_catch_handlers, print_it_catch_handlers)
        (print_one_catch_handlers, print_mention_catch_handlers)
        (print_recreate_catch_handlers): New function.
        (catch_handlers_breakpoint_ops): New variable.
        (catch_ada_exception_command_split) <is_catch_handlers_cmd>:
        Add parameter.  Add "catch handler" handling.
        (ada_exception_sym_name, ada_exception_breakpoint_ops):
        Add "catch handler" handling.
        (ada_exception_catchpoint_cond_string): Add "catch handler"
        handling.
        (create_ada_exception_catchpoint): Update create_excep_cond_exprs
        call.
        (catch_ada_handlers_command): New function.
        (initialize_ada_catchpoint_ops): Initialize "catch handlers"
        operations structure.
        (_initialize_ada_language): Add "catch handlers" command entry.
        * NEWS: Document "catch handlers" feature.

gdb/doc/ChangeLog:

        * gdb.texinfo (Set Catchpoints): Add documentation for new
        "catch handlers" action.

gdb/testsuite/ChangeLog:

        * gdb.ada/excep_handle.exp: New testcase.
        * gdb.ada/excep_handle/foo.adb: New file.
        * gdb.ada/excep_handle/pck.ads: New file.

Tested on x86_64-linux.
2018-01-03 11:02:53 +01:00
Joel Brobecker
9fe561ab7f [gdb/Ada] slices of arrays with dynamic strides
Consider the following Ada code:

       procedure Nested (L, U : Integer) is
          subtype Small_Type is Integer range L .. U;
          type Record_Type (I : Small_Type := L) is record
             S : String (1 .. I);
          end record;
          type Array_Type is array (Integer range <>) of Record_Type;

          A1 : Array_Type :=
            (1 => (I => 0, S => <>),
             2 => (I => 1, S => "A"),
             3 => (I => 2, S => "AB"));

          procedure Discard (R : Record_Type) is
          begin
             null;
          end Discard;

       begin
          Discard (A1 (1));  -- STOP
       end;

Trying to print a slice of that array currently yields:

    (gdb) p a1(1..3)
    $1 = ((i => 0, s => ""), (i => 0, s => ""), (i => 0, s => ""))

We expected instead:

    (gdb) p a1(1..3)
    $1 = ((i => 0, s => ""), (i => 1, s => "A"), (i => 2, s => "AB"))

This is because the functions we use in ada-lang.c to create the type
of the array slice (ada_value_slice and ada_value_slice_from_ptr) was
not taking into account the stride of the array. This patch fixes this.

gdb/ChangeLog:

        * ada-lang.c (ada_value_slice_from_ptr): Take array stride into
        account when creating the array type of the slice.
        (ada_value_slice): Likewise.

gdb/testsuite/ChangeLog:

        * gdb.ada/dyn_stride.exp: Add slice test.

Note that, with the current use of ada_value_slice, the enhancement
to handle dynamic array strides seems unnecessary, because I do not
see how an array with a dynamic stride can be referenced by either
by reference or pointer. Since references are coerced to array pointers,
in both cases, the slice is performed by ada_value_slice_from_ptr.
But ada_value_slice is enhanced nonetheless, in the spirit of making
the code more robust, in case we missed something, and also as similar
as possible with its from_ptr counterpart.

tested on x86_64-linux.
2018-01-01 22:53:55 -05:00
Joel Brobecker
e2882c8578 Update copyright year range in all GDB files
gdb/ChangeLog:

        Update copyright year range in all GDB files
2018-01-02 07:38:06 +04:00
Tom Tromey
e9d9f57e11 C++-ify parser_state
This mildly C++-ifies parser_state and stap_parse_info -- just enough
to remove some cleanups.

This version includes the changes implemented by Simon.

Regression tested by the buildbot.

gdb/ChangeLog
2017-12-30  Tom Tromey  <tom@tromey.com>
	    Simon Marchi  <simon.marchi@ericsson.com>

	* stap-probe.h (struct stap_parse_info): Add constructor,
	destructor.
	* stap-probe.c (stap_parse_argument): Update.
	* rust-exp.y (rust_lex_tests): Update.
	* parser-defs.h (struct parser_state): Add constructor,
	destructor, release method.
	<expout>: Change type to expression_up.
	(null_post_parser): Change type.
	(initialize_expout, reallocate_expout): Remove.
	* parse.c (parser_state::parser_state): Rename from
	initialize_expout.
	(parser_state::release): Rename from reallocate_expout.
	(write_exp_elt, parse_exp_in_context_1, increase_expout_size):
	Update.
	(null_post_parser): Change type of "exp".
	* dtrace-probe.c (dtrace_probe::build_arg_exprs): Update.
	* ada-lang.c (resolve, resolve_subexp)
	(replace_operator_with_call): Change type of "expp".
	* language.h (struct language_defn) <la_post_parser>: Change type
	of "expp".
2017-12-30 17:05:37 -07:00
Joel Brobecker
eccab96d54 improved error message when getting an exception printing a variable
Consider the following Ada code defining a global variable whose
type is an array of static bounds (1 .. 2), but where its elements
are a variant record whose size is not statically known:

    type Ints is array (Natural range <>) of Integer;
    type Bounded_Ints (Max_Size : Natural) is record
       Length : Natural := 0;
       Objs   : Ints (1 .. Max_Size);
    end record;

    type Ints_Doubled is array (1 .. 2) of Bounded_Ints (Idem (0));

    Global : Ints_Doubled;

When compiling this program at -O2 using a GCC-6.4-based compiler
on x86_64-linux, trying to print the value of that global variable
yields:

    (gdb) p global
    $1 =

Let's look at the debugging info, which starts with the global
variable itself...

        .uleb128 0x19   # (DIE (0x25e) DW_TAG_variable)
        .long   .LASF32 # DW_AT_name: "fd__global"
        .long   0x273   # DW_AT_type

... its type is a reference to a typedef ...

        .uleb128 0x14   # (DIE (0x273) DW_TAG_reference_type)
        .byte   0x8     # DW_AT_byte_size
        .long   0x202   # DW_AT_type
        [...]
        .uleb128 0x15   # (DIE (0x202) DW_TAG_typedef)
        .long   .LASF19 # DW_AT_name: "fd__ints_doubled"
        .long   0x20d   # DW_AT_type

... of an array (1..2) ...

        .uleb128 0x2    # (DIE (0x20d) DW_TAG_array_type)
        .long   .LASF19 # DW_AT_name: "fd__ints_doubled"
        .long   0x15b   # DW_AT_type
        .long   0x221   # DW_AT_sibling
        .uleb128 0x16   # (DIE (0x21a) DW_TAG_subrange_type)
        .long   0x40    # DW_AT_type
        .sleb128 2      # DW_AT_upper_bound
        .byte   0       # end of children of DIE 0x20d

... of a struct whose name is fd__Tints_doubledC:

        .uleb128 0x10   # (DIE (0x15b) DW_TAG_structure_type)
        .long   .LASF11 # DW_AT_name: "fd__Tints_doubledC"
        .long   0x1e4   # DW_AT_GNAT_descriptive_type
                        # DW_AT_artificial
        .long   0x1e4   # DW_AT_sibling
        .uleb128 0x7    # (DIE (0x16a) DW_TAG_member)
        .long   .LASF4  # DW_AT_name: "max_size"
        [snip]

The error occurs while Ada evaluator is trying to "fix"
the element type inside the array, so as to determine its actual
size. For that, it searches for a parallel "XVZ" variable,
which, when found, contains the object's actual size.

Unfortunately in our case, the variable exists but has been
optimized out, as seen by the presence of a variable DIE in
the debugging info, but with no address attribute:

        .uleb128 0x18   # (DIE (0x24e) DW_TAG_variable)
        .long   .LASF31 # DW_AT_name: "fd__Tints_doubledC___XVZ"
        .long   0x257   # DW_AT_type
                        # DW_AT_artificial

Discussing this with some members of AdaCore's compiler team,
it is expected that the optimizer can get rid of this variable,
and we don't want to pessimize the code just to improve debuggability,
since -O2 is about performance. So, the idea of this patch is
not to make it work, but provide a bit more information to help
users understand what kind of error is preventing GDB from being
able to print the variable's value.

The first hurdle we had to clear was the fact that ada_val_print
traps all exceptions (including QUIT ones!), and does so completly
silently. So, the fix was to add a trace of the exception being
generated. While doing so, we fix an old XXX/FIXME by only catching
errors, letting QUIT exceptions go through.

Once this is done, we now get an error message, which gives a first
clue as to what was happening:

    (gdb) p fd.global
    $1 = <error reading variable: value has been optimized out>

However, it would be more useful to know which value it was
that was optimized out. For that purpose, we enhanced
ada-lang.c::ada_to_fixed_type_1 so as to re-throw the error
with a message which indicates which variable we failed to read.

With those changes, the new output is now:

    (gdb) p fd.global
    $1 = <error reading variable: unable to read value of fd__Tints_doubledC___XVZ (value has been optimized out)>

gdb/ChangeLog:

        * ada-lang.c (ada_to_fixed_type_1): Rethrow errors with
        a more detailed exception message when getting an exception
        while trying to read the value of an XVZ variable.
        * ada-valprint.c (ada_val_print): Only catch RETURN_MASK_ERROR
        exceptions.  Print an error message when an exception is caught.

gdb/testsuite/ChangeLog:

        * gdb.dwarf2/ada-valprint-error.c: New file.
        * gdb.dwarf2/ada-valprint-error.exp: New file.

Tested on x86_64-linux
2017-12-17 22:39:33 -05:00
Joel Brobecker
0e2da9f013 (Ada) crash assigning to record component which is an array
Consider the following code, which declares a variabled called "input"
of type "parameter", which is a record with one component called "u2",
where the type of that component is a simple 3-element array of
floating point values:

   type Float_Array_3 is array (1 .. 3) of Float;
   type parameters is record
      u2 : Float_Array_3;
   end record;
   input : parameters;

Trying to assign a value to input.u2 causes GDB to crash:

    (gdb) p input.u2 := (0.25,0.5,0.75)
    [1]    20228 segmentation fault (core dumped) [...]/gdb

The crash occurs because input.u2 is described in the debugging
info as a typedef of an array. Indeed, input's type is:

 <1><ae9>: Abbrev Number: 7 (DW_TAG_structure_type)
    <aea>   DW_AT_name        : (indirect string, offset: 0x1045): target_wrapper__parameters
    [...]
 <2><af5>: Abbrev Number: 8 (DW_TAG_member)
    <af6>   DW_AT_name        : u2
    [...]
    <afb>   DW_AT_type        : <0xaca>

and, looking at DIE 0xaca to get input.u2's type, we see:

 <1><aca>: Abbrev Number: 4 (DW_TAG_typedef)
    <acb>   DW_AT_name        : (indirect string, offset: 0x1060): target_wrapper__float_array_3
    [...]
    <ad1>   DW_AT_type        : <0xad5>

We can also confirm, following the DW_AT_type attribute (0xad5), that
it's a typedef of our array:

 <1><ad5>: Abbrev Number: 5 (DW_TAG_array_type)
    <ad6>   DW_AT_name        : (indirect string, offset: 0x1060): target_wrapper__float_array_3
    [...]

In fact, this scenario uncovered 2 areas where typedef handling
is missing, thus causing a crash. The first happens inside
assign_aggregate:

   if (ada_is_direct_array_type (lhs_type))
     {
       lhs = ada_coerce_to_simple_array (lhs);
       lhs_type = value_type (lhs);
       low_index = TYPE_ARRAY_LOWER_BOUND_VALUE (lhs_type);
       high_index = TYPE_ARRAY_UPPER_BOUND_VALUE (lhs_type);
     }

Here, lhs_type is a TYPE_CODE_TYPEDEF. ada_is_direct_array_type
knows how to handle it, but TYPE_ARRAY_LOWER_BOUND_VALUE assumes
that the given type is a TYPE_CODE_ARRAY. As such, it ends up
accessing some fields in lhs_type which it shouldn't, and kaboom.

We fixed this issue by making sure that the TYPE_CODE_TYPEDEF
layer gets stripped.

Once this is done, we hit a different kind of error, also leading to
a SEGV, this time in assign_component. The code looks like this:

  if (TYPE_CODE (value_type (lhs)) == TYPE_CODE_ARRAY)
    [...]
  else
    [...]

Because once again lhs is a TYPE_CODE_TYPEDEF, the check fail,
and we end up assuming that lhs is a struct, executing the "else"
block, which is:

  else
    {
      elt = ada_index_struct_field (index, lhs, 0, value_type (lhs));
      elt = ada_to_fixed_value (elt);
    }

Since lhs is not a struct, ada_index_struct_field returns NULL,
which ada_to_fixed_value does not handle well, hence another crash.

This patch fixes this other issue the same way, by stripping
TYPE_CODE_TYPEDEF layers.

gdb/ChangeLog:

        * ada-lang.c (assign_component): Strip any TYPE_CODE_TYPEDEF
        layer from lhs' type.
        (assign_aggregate): Likewise.

gdb/testsuite:

        * gdb.ada/assign_arr: New testcase.

Tested on x86_64-linux.
2017-12-17 22:11:40 -05:00