This is more preparation bits for multi-target support.
In a multi-target scenario, we need to address the case of different
processes/threads running on different targets that happen to have the
same PID/PTID. E.g., we can have both process 123 in target 1, and
process 123 in target 2, while they're in reality different processes
running on different machines. Or maybe we've loaded multiple
instances of the same core file. Etc.
To address this, in my WIP multi-target branch, threads and processes
are uniquely identified by the (process_stratum target_ops *, ptid_t)
and (process_stratum target_ops *, pid) tuples respectively. I.e.,
each process_stratum instance has its own thread/process number space.
As you can imagine, that requires passing around target_ops * pointers
in a number of functions where we're currently passing only a ptid_t
or an int. E.g., when we look up a thread_info object by ptid_t in
find_thread_ptid, the ptid_t alone isn't sufficient.
In many cases though, we already have the thread_info or inferior
pointer handy, but we "lose" it somewhere along the call stack, only
to look it up again by ptid_t/pid. Since thread_info or inferior
objects know their parent target, if we pass around thread_info or
inferior pointers when possible, we avoid having to add extra
target_ops parameters to many functions, and also, we eliminate a
number of by ptid_t/int lookups.
So that's what this patch does. In a bit more detail:
- Changes a number of functions and methods to take a thread_info or
inferior pointer instead of a ptid_t or int parameter.
- Changes a number of structure fields from ptid_t/int to inferior or
thread_info pointers.
- Uses the inferior_thread() function whenever possible instead of
inferior_ptid.
- Uses thread_info pointers directly when possible instead of the
is_running/is_stopped etc. routines that require a lookup.
- A number of functions are eliminated along the way, such as:
int valid_gdb_inferior_id (int num);
int pid_to_gdb_inferior_id (int pid);
int gdb_inferior_id_to_pid (int num);
int in_inferior_list (int pid);
- A few structures and places hold a thread_info pointer across
inferior execution, so now they take a strong reference to the
(refcounted) thread_info object to avoid the thread_info pointer
getting stale. This is done in enable_thread_stack_temporaries and
in the infcall.c code.
- Related, there's a spot in infcall.c where using a RAII object to
handle the refcount would be handy, so a gdb::ref_ptr specialization
for thread_info is added (thread_info_ref, in gdbthread.h), along
with a gdb_ref_ptr policy that works for all refcounted_object types
(in common/refcounted-object.h).
gdb/ChangeLog:
2018-06-21 Pedro Alves <palves@redhat.com>
* ada-lang.h (ada_get_task_number): Take a thread_info pointer
instead of a ptid_t. All callers adjusted.
* ada-tasks.c (ada_get_task_number): Likewise. All callers
adjusted.
(print_ada_task_info, display_current_task_id, task_command_1):
Adjust.
* breakpoint.c (watchpoint_in_thread_scope): Adjust to use
inferior_thread.
(breakpoint_kind): Adjust.
(remove_breakpoints_pid): Rename to ...
(remove_breakpoints_inf): ... this. Adjust to take an inferior
pointer. All callers adjusted.
(bpstat_clear_actions): Use inferior_thread.
(get_bpstat_thread): New.
(bpstat_do_actions): Use it.
(bpstat_check_breakpoint_conditions, bpstat_stop_status): Adjust
to take a thread_info pointer. All callers adjusted.
(set_longjmp_breakpoint_for_call_dummy, set_momentary_breakpoint)
(breakpoint_re_set_thread): Use inferior_thread.
* breakpoint.h (struct inferior): Forward declare.
(bpstat_stop_status): Update.
(remove_breakpoints_pid): Delete.
(remove_breakpoints_inf): New.
* bsd-uthread.c (bsd_uthread_target::wait)
(bsd_uthread_target::update_thread_list): Use find_thread_ptid.
* btrace.c (btrace_add_pc, btrace_enable, btrace_fetch)
(maint_btrace_packet_history_cmd)
(maint_btrace_clear_packet_history_cmd): Adjust.
(maint_btrace_clear_cmd, maint_info_btrace_cmd): Adjust to use
inferior_thread.
* cli/cli-interp.c: Include "inferior.h".
* common/refcounted-object.h (struct
refcounted_object_ref_policy): New.
* compile/compile-object-load.c: Include gdbthread.h.
(store_regs): Use inferior_thread.
* corelow.c (core_target::close): Use current_inferior.
(core_target_open): Adjust to use first_thread_of_inferior and use
the current inferior.
* ctf.c (ctf_target::close): Adjust to use current_inferior.
* dummy-frame.c (dummy_frame_id) <ptid>: Delete, replaced by ...
<thread>: ... this new field. All references adjusted.
(dummy_frame_pop, dummy_frame_discard, register_dummy_frame_dtor):
Take a thread_info pointer instead of a ptid_t.
* dummy-frame.h (dummy_frame_push, dummy_frame_pop)
(dummy_frame_discard, register_dummy_frame_dtor): Take a
thread_info pointer instead of a ptid_t.
* elfread.c: Include "inferior.h".
(elf_gnu_ifunc_resolver_stop, elf_gnu_ifunc_resolver_return_stop):
Use inferior_thread.
* eval.c (evaluate_subexp): Likewise.
* frame.c (frame_pop, has_stack_frames, find_frame_sal): Use
inferior_thread.
* gdb_proc_service.h (struct thread_info): Forward declare.
(struct ps_prochandle) <ptid>: Delete, replaced by ...
<thread>: ... this new field. All references adjusted.
* gdbarch.h, gdbarch.c: Regenerate.
* gdbarch.sh (get_syscall_number): Replace 'ptid' parameter with a
'thread' parameter. All implementations and callers adjusted.
* gdbthread.h (thread_info) <set_running>: New method.
(delete_thread, delete_thread_silent): Take a thread_info pointer
instead of a ptid.
(global_thread_id_to_ptid, ptid_to_global_thread_id): Delete.
(first_thread_of_process): Delete, replaced by ...
(first_thread_of_inferior): ... this new function. All callers
adjusted.
(any_live_thread_of_process): Delete, replaced by ...
(any_live_thread_of_inferior): ... this new function. All callers
adjusted.
(switch_to_thread, switch_to_no_thread): Declare.
(is_executing): Delete.
(enable_thread_stack_temporaries): Update comment.
<enable_thread_stack_temporaries>: Take a thread_info pointer
instead of a ptid_t. Incref the thread.
<~enable_thread_stack_temporaries>: Decref the thread.
<m_ptid>: Delete
<m_thr>: New.
(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
(get_last_thread_stack_temporary)
(value_in_thread_stack_temporaries, can_access_registers_thread):
Take a thread_info pointer instead of a ptid_t. All callers
adjusted.
* infcall.c (get_call_return_value): Use inferior_thread.
(run_inferior_call): Work with thread pointers instead of ptid_t.
(call_function_by_hand_dummy): Work with thread pointers instead
of ptid_t. Use thread_info_ref.
* infcmd.c (proceed_thread_callback): Access thread's state
directly.
(ensure_valid_thread, ensure_not_running): Use inferior_thread,
access thread's state directly.
(continue_command): Use inferior_thread.
(info_program_command): Use find_thread_ptid and access thread
state directly.
(proceed_after_attach_callback): Use thread state directly.
(notice_new_inferior): Take a thread_info pointer instead of a
ptid_t. All callers adjusted.
(exit_inferior): Take an inferior pointer instead of a pid. All
callers adjusted.
(exit_inferior_silent): New.
(detach_inferior): Delete.
(valid_gdb_inferior_id, pid_to_gdb_inferior_id)
(gdb_inferior_id_to_pid, in_inferior_list): Delete.
(detach_inferior_command, kill_inferior_command): Use
find_inferior_id instead of valid_gdb_inferior_id and
gdb_inferior_id_to_pid.
(inferior_command): Use inferior and thread pointers.
* inferior.h (struct thread_info): Forward declare.
(notice_new_inferior): Take a thread_info pointer instead of a
ptid_t. All callers adjusted.
(detach_inferior): Delete declaration.
(exit_inferior, exit_inferior_silent): Take an inferior pointer
instead of a pid. All callers adjusted.
(gdb_inferior_id_to_pid, pid_to_gdb_inferior_id, in_inferior_list)
(valid_gdb_inferior_id): Delete.
* infrun.c (follow_fork_inferior, proceed_after_vfork_done)
(handle_vfork_child_exec_or_exit, follow_exec): Adjust.
(struct displaced_step_inferior_state) <pid>: Delete, replaced by
...
<inf>: ... this new field.
<step_ptid>: Delete, replaced by ...
<step_thread>: ... this new field.
(get_displaced_stepping_state): Take an inferior pointer instead
of a pid. All callers adjusted.
(displaced_step_in_progress_any_inferior): Adjust.
(displaced_step_in_progress_thread): Take a thread pointer instead
of a ptid_t. All callers adjusted.
(displaced_step_in_progress, add_displaced_stepping_state): Take
an inferior pointer instead of a pid. All callers adjusted.
(get_displaced_step_closure_by_addr): Adjust.
(remove_displaced_stepping_state): Take an inferior pointer
instead of a pid. All callers adjusted.
(displaced_step_prepare_throw, displaced_step_prepare)
(displaced_step_fixup): Take a thread pointer instead of a ptid_t.
All callers adjusted.
(start_step_over): Adjust.
(infrun_thread_ptid_changed): Remove bit updating ptids in the
displaced step queue.
(do_target_resume): Adjust.
(fetch_inferior_event): Use inferior_thread.
(context_switch, get_inferior_stop_soon): Take an
execution_control_state pointer instead of a ptid_t. All callers
adjusted.
(switch_to_thread_cleanup): Delete.
(stop_all_threads): Use scoped_restore_current_thread.
* inline-frame.c: Include "gdbthread.h".
(inline_state) <inline_state>: Take a thread pointer instead of a
ptid_t. All callers adjusted.
<ptid>: Delete, replaced by ...
<thread>: ... this new field.
(find_inline_frame_state): Take a thread pointer instead of a
ptid_t. All callers adjusted.
(skip_inline_frames, step_into_inline_frame)
(inline_skipped_frames, inline_skipped_symbol): Take a thread
pointer instead of a ptid_t. All callers adjusted.
* inline-frame.h (skip_inline_frames, step_into_inline_frame)
(inline_skipped_frames, inline_skipped_symbol): Likewise.
* linux-fork.c (delete_checkpoint_command): Adjust to use thread
pointers directly.
* linux-nat.c (get_detach_signal): Likewise.
* linux-thread-db.c (thread_from_lwp): New 'stopped' parameter.
(thread_db_notice_clone): Adjust.
(thread_db_find_new_threads_silently)
(thread_db_find_new_threads_2, thread_db_find_new_threads_1): Take
a thread pointer instead of a ptid_t. All callers adjusted.
* mi/mi-cmd-var.c: Include "inferior.h".
(mi_cmd_var_update_iter): Update to use thread pointers.
* mi/mi-interp.c (mi_new_thread): Update to use the thread's
inferior directly.
(mi_output_running_pid, mi_inferior_count): Delete, bits factored
out to ...
(mi_output_running): ... this new function.
(mi_on_resume_1): Adjust to use it.
(mi_user_selected_context_changed): Adjust to use inferior_thread.
* mi/mi-main.c (proceed_thread): Adjust to use thread pointers
directly.
(interrupt_thread_callback): : Adjust to use thread and inferior
pointers.
* proc-service.c: Include "gdbthread.h".
(ps_pglobal_lookup): Adjust to use the thread's inferior directly.
* progspace-and-thread.c: Include "inferior.h".
* progspace.c: Include "inferior.h".
* python/py-exitedevent.c (create_exited_event_object): Adjust to
hold a reference to an inferior_object.
* python/py-finishbreakpoint.c (bpfinishpy_init): Adjust to use
inferior_thread.
* python/py-inferior.c (struct inferior_object): Give the type a
tag name instead of a typedef.
(python_on_normal_stop): No need to check if the current thread is
listed.
(inferior_to_inferior_object): Change return type to
inferior_object. All callers adjusted.
(find_thread_object): Delete, bits factored out to ...
(thread_to_thread_object): ... this new function.
* python/py-infthread.c (create_thread_object): Use
inferior_to_inferior_object.
(thpy_is_stopped): Use thread pointer directly.
(gdbpy_selected_thread): Use inferior_thread.
* python/py-record-btrace.c (btpy_list_object) <ptid>: Delete
field, replaced with ...
<thread>: ... this new field. All users adjusted.
(btpy_insn_or_gap_new): Drop const.
(btpy_list_new): Take a thread pointer instead of a ptid_t. All
callers adjusted.
* python/py-record.c: Include "gdbthread.h".
(recpy_insn_new, recpy_func_new): Take a thread pointer instead of
a ptid_t. All callers adjusted.
(gdbpy_current_recording): Use inferior_thread.
* python/py-record.h (recpy_record_object) <ptid>: Delete
field, replaced with ...
<thread>: ... this new field. All users adjusted.
(recpy_element_object) <ptid>: Delete
field, replaced with ...
<thread>: ... this new field. All users adjusted.
(recpy_insn_new, recpy_func_new): Take a thread pointer instead of
a ptid_t. All callers adjusted.
* python/py-threadevent.c: Include "gdbthread.h".
(get_event_thread): Use thread_to_thread_object.
* python/python-internal.h (struct inferior_object): Forward
declare.
(find_thread_object, find_inferior_object): Delete declarations.
(thread_to_thread_object, inferior_to_inferior_object): New
declarations.
* record-btrace.c: Include "inferior.h".
(require_btrace_thread): Use inferior_thread.
(record_btrace_frame_sniffer)
(record_btrace_tailcall_frame_sniffer): Use inferior_thread.
(get_thread_current_frame): Use scoped_restore_current_thread and
switch_to_thread.
(get_thread_current_frame): Use thread pointer directly.
(record_btrace_replay_at_breakpoint): Use thread's inferior
pointer directly.
* record-full.c: Include "inferior.h".
* regcache.c: Include "gdbthread.h".
(get_thread_arch_regcache): Use the inferior's address space
directly.
(get_thread_regcache, registers_changed_thread): New.
* regcache.h (get_thread_regcache(thread_info *thread)): New
overload.
(registers_changed_thread): New.
(remote_target) <remote_detach_1>: Swap order of parameters.
(remote_add_thread): <remote_add_thread>: Return the new thread.
(get_remote_thread_info(ptid_t)): New overload.
(remote_target::remote_notice_new_inferior): Use thread pointers
directly.
(remote_target::process_initial_stop_replies): Use
thread_info::set_running.
(remote_target::remote_detach_1, remote_target::detach)
(extended_remote_target::detach): Adjust.
* stack.c (frame_show_address): Use inferior_thread.
* target-debug.h (target_debug_print_thread_info_pp): New.
* target-delegates.c: Regenerate.
* target.c (default_thread_address_space): Delete.
(memory_xfer_partial_1): Use current_inferior.
(target_detach): Use current_inferior.
(target_thread_address_space): Delete.
(generic_mourn_inferior): Use current_inferior.
* target.h (struct target_ops) <thread_address_space>: Delete.
(target_thread_address_space): Delete.
* thread.c (init_thread_list): Use ALL_THREADS_SAFE. Use thread
pointers directly.
(delete_thread_1, delete_thread, delete_thread_silent): Take a
thread pointer instead of a ptid_t. Adjust all callers.
(ptid_to_global_thread_id, global_thread_id_to_ptid): Delete.
(first_thread_of_process): Delete, replaced by ...
(first_thread_of_inferior): ... this new function. All callers
adjusted.
(any_thread_of_process): Rename to ...
(any_thread_of_inferior): ... this, and take an inferior pointer.
(any_live_thread_of_process): Rename to ...
(any_live_thread_of_inferior): ... this, and take an inferior
pointer.
(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
(value_in_thread_stack_temporaries)
(get_last_thread_stack_temporary): Take a thread pointer instead
of a ptid_t. Adjust all callers.
(thread_info::set_running): New.
(validate_registers_access): Use inferior_thread.
(can_access_registers_ptid): Rename to ...
(can_access_registers_thread): ... this, and take a thread
pointer.
(print_thread_info_1): Adjust to compare thread pointers instead
of ptids.
(switch_to_no_thread, switch_to_thread): Make extern.
(scoped_restore_current_thread::~scoped_restore_current_thread):
Use m_thread pointer directly.
(scoped_restore_current_thread::scoped_restore_current_thread):
Use inferior_thread.
(thread_command): Use thread pointer directly.
(thread_num_make_value_helper): Use inferior_thread.
* top.c (execute_command): Use inferior_thread.
* tui/tui-interp.c: Include "inferior.h".
* varobj.c (varobj_create): Use inferior_thread.
(value_of_root_1): Use find_thread_global_id instead of
global_thread_id_to_ptid.
There is an inconsistency between the doc and the online help.
=> the doc is correct, so fixing/improving the on-line help.
2018-06-14 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* cli/cli-script.c (_initialize_cli_script): Fix online documentation
of 'define' command.
I happened to notice recently that "gdb --version" says:
GNU gdb (GDB) 8.0.50.20170911-git
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
This is a bit on the wordy side, but also references interactive
commands, which I think doesn't really make sense for --version.
This patch removes some text from --version, while leaving it in the
"show version" output. It also adds a newline between the URLs and
the "For help, ..." text, because I thought that was easier to read.
Finally, it indents one of the URLs, since that was simpler to read,
but not the other URL, because the current format is specified by the
GNU coding standards section on "--version".
Now the --version output looks like:
GNU gdb (GDB) 8.1.50.20180511-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Tested by the buildbot.
gdb/ChangeLog
2018-06-05 Tom Tromey <tom@tromey.com>
* cli/cli-cmds.c (show_version): Update.
* top.c (print_gdb_version): Add "interactive" parameter.
Update.
* main.c (captured_main_1): Update.
* top.h (print_gdb_version): Add "interactive" parameter and a
comment.
gdb/testsuite/ChangeLog
2018-06-05 Tom Tromey <tom@tromey.com>
* gdb.base/default.exp: Update expected "show version" output.
The function interp_ui_out simply calls the interp_ui_out method.
However, if it is passed a NULL interpreter, it first finds the
current interpreter. I believe, though, that NULL is never passed
here, and I think it's simpler to just remove this function and
require callers to be more explicit.
ChangeLog
2018-05-25 Tom Tromey <tom@tromey.com>
* utils.c (fputs_maybe_filtered): Update.
* linespec.c (decode_line_full): Update.
* mi/mi-interp.c (mi_on_normal_stop_1, mi_tsv_modified)
(mi_print_breakpoint_for_event, mi_solib_loaded)
(mi_solib_unloaded, mi_command_param_changed, mi_memory_changed)
(mi_user_selected_context_changed): Update.
* mi/mi-main.c (mi_execute_command): Update.
* cli/cli-script.c (execute_control_command): Update.
* python/python.c (execute_gdb_command): Update.
* solib.c (info_sharedlibrary_command): Update.
* interps.c (interp_ui_out): Remove.
* interps.h (interp_ui_out): Remove.
This changes the various as_*_interp functions to be implemented using
dynamic_cast. I believe this is a small improvement, because it is
more typesafe -- the C++ runtime does the type-checking for us.
ChangeLog
2018-05-25 Tom Tromey <tom@tromey.com>
* tui/tui-interp.c (as_tui_interp): Use dynamic_cast.
* mi/mi-interp.c (as_mi_interp): Use dynamic_cast.
* cli/cli-interp.c (as_cli_interp): Use dynamic_cast.
While looking through the "interp" code I found a couple of spots that
could use scoped_restore.
ChangeLog
2018-05-25 Tom Tromey <tom@tromey.com>
* cli/cli-interp.c (safe_execute_command): Use scoped_restore.
* interps.c (interp_exec): Use scoped_restore.
This changes some functions in cli-script.c to use function_view
rather than a function pointer and closure argument. This simplifies
the code a bit and is useful in a subsequent patch.
ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
* tracepoint.c (actions_command): Update.
* mi/mi-cmd-break.c (mi_command_line_array)
(mi_command_line_array_cnt, mi_command_line_array_ptr)
(mi_read_next_line): Remove.
(mi_cmd_break_commands): Update.
* cli/cli-script.h (read_command_lines, read_command_lines_1): Use
function_view.
* cli/cli-script.c (get_command_line): Update.
(process_next_line): Use function_view. Constify.
(recurse_read_control_structure, read_command_lines)
(read_command_lines_1): Change argument types to function_view.
(do_define_command, document_command): Update.
* breakpoint.h (check_tracepoint_command): Don't declare.
* breakpoint.c (check_tracepoint_command): Remove.
(commands_command_1, create_tracepoint_from_upload): Update.
PR gdb/11750 concerns defining a command inside a user commnad, like:
define outer
define inner
echo hi\n
end
end
This patch adds this capability to gdb.
ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
PR gdb/11750:
* cli/cli-script.h (enum command_control_type) <define_control>:
New constant.
* cli/cli-script.c (multi_line_command_p): Handle define_control.
(build_command_line, execute_control_command_1)
(process_next_line): Likewise.
(do_define_command): New function, extracted from define_command.
(define_command): Use it.
testsuite/ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
PR gdb/11750:
* gdb.base/define.exp: Test defining a user command inside a user
command.
* gdb.base/commands.exp (define_if_without_arg_test): Test "define".
The prompt argument to read_command_lines can be const. This patch
makes this change, and also removes some fixed-sized buffers in favor
of using string_printf.
ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
* tracepoint.c (actions_command): Update.
* cli/cli-script.h (read_command_lines): Update.
* cli/cli-script.c (read_command_lines): Constify prompt_arg.
(MAX_TMPBUF): Remove define.
(define_command): Use string_printf.
(document_command): Likewise.
* breakpoint.c (commands_command_1): Update.
I noticed some code in execute_control_command_1 that could be
simplified by making print_command_trace a printf-like function. This
patch makes this change.
ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
* top.c (execute_command): Update.
* cli/cli-script.h (print_command_lines): Now varargs.
* cli/cli-script.c (print_command_lines): Now varargs.
(execute_control_command_1) <case while_control, case if_control>:
Update.
Currently command lines are reference counted using shared_ptr only
when attached to breakpoints. This patch changes gdb to use
shared_ptr in commands as well. This allows for the removal of
copy_command_lines.
Note that the change to execute_user_command explicitly makes a new
reference to the command line. This will be used in a later patch.
This simplifies struct command_line based on the observation that a
given command can have at most two child bodies: an "if" can have both
"then" and "else" parts. Perhaps the names I've chosen for the
replacements here are not very good -- your input requested.
ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
* tracepoint.c (all_tracepoint_actions): Rename from
all_tracepoint_actions_and_cleanup. Change return type.
(actions_command, encode_actions_1, encode_actions)
(trace_dump_actions, tdump_command): Update.
* remote.c (remote_download_command_source): Update.
* python/python.c (gdbpy_eval_from_control_command)
(python_command, python_interactive_command): Update.
* mi/mi-cmd-break.c (mi_cmd_break_commands): Update.
* guile/guile.c (guile_command)
(gdbscm_eval_from_control_command, guile_command): Update.
* compile/compile.c (compile_code_command)
(compile_print_command, compile_to_object): Update.
* cli/cli-script.h (struct command_lines_deleter): New.
(counted_command_line): New typedef.
(struct command_line): Add constructor, destructor.
<body_list>: Remove.
<body_list_0, body_list_1>: New members.
(command_line_up): Remove typedef.
(read_command_lines, read_command_lines_1, get_command_line):
Update.
(copy_command_lines): Don't declare.
* cli/cli-script.c (build_command_line): Use "new".
(get_command_line): Return counted_command_line.
(print_command_lines, execute_user_command)
(execute_control_command_1, while_command, if_command): Update.
(realloc_body_list): Remove.
(process_next_line, recurse_read_control_structure): Update.
(read_command_lines, read_command_lines_1): Return counted_command_line.
(free_command_lines): Use "delete".
(copy_command_lines): Remove.
(define_command, document_command, show_user_1): Update.
* cli/cli-decode.h (struct cmd_list_element) <user_commands>: Now
a counted_command_line.
* breakpoint.h (counted_command_line): Remove typedef.
(breakpoint_set_commands): Update.
* breakpoint.c (check_no_tracepoint_commands)
(validate_commands_for_breakpoint): Update.
(breakpoint_set_commands): Change commands to be a
counted_command_line.
(commands_command_1, update_dprintf_command_list)
(create_tracepoint_from_upload): Update.
This adds a constructor and destructor to cmd_list_element and changes
it to be allocated with new. This will be useful in a subsequent
patch.
ChangeLog
2018-05-04 Tom Tromey <tom@tromey.com>
* cli/cli-decode.h (cmd_list_element): New constructor.
(~cmd_list_element): New destructor.
(struct cmd_list_element): Add initializers.
* cli/cli-decode.c (do_add_cmd): Use "new".
(delete_cmd): Use "delete".
We had a few times the need for a data structure that does essentially
what C++17's std::string_view does, which is to give an std::string-like
interface (only the read-only operations) to an arbitrary character
buffer.
This patch adapts the files copied from libstdc++ by the previous patch
to integrate them with GDB. Here's a summary of the changes:
* Remove things related to wstring_view, u16string_view and
u32string_view (I don't think we need them, but we can always add them
later).
* Remove usages of _GLIBCXX_BEGIN_NAMESPACE_VERSION and
_GLIBCXX_END_NAMESPACE_VERSION.
* Put the code in the gdb namespace. I had to add a few "std::" in
front of std type usages.
* Change __throw_out_of_range_fmt() for error().
* Make gdb::string_view an alias of std::string_view when building
with >= c++17.
* Remove a bunch of constexpr, because they are not valid in c++11
(e.g. they are not a single return line).
* Use std::common_type<_Tp>::type instead of std::common_type_t<_Tp>,
because c++11 doesn't have the later.
* Remove the #pragma GCC system_header, since that silences some
warnings that we might want to have if we're doing something not
correctly.
* Remove operator ""sv. It would need a lot of work to make all
supported compilers happy, and we can easily live without it.
* Remove operator<<. It is implemented using __ostream_insert (a
libstdc++ internal). Bringing it in might be possible, but I don't
think that would be worth the effort, since we don't really use
streams at the moment.
* Replace internal libstdc++ asserts ( __glibcxx_assert and
__glibcxx_requires_string_len) with gdb_assert.
* Remove hash helpers, because they use libstdc++ internal functions.
If we need them we always import them later.
The string_view class in cli/cli-script.c is removed and its usage
replaced with the new gdb::string_view.
gdb/ChangeLog:
* common/gdb_string_view.h: Remove libstdc++ implementation
details, adjust to gdb reality.
* common/gdb_string_view.tcc: Likewise.
* cli/cli-script.c (struct string_view): Remove.
(user_args) <m_args>: Change element type to gdb::string_view.
(user_args::insert_args): Adjust.
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.
This changes openp, source_full_path_of, and find_and_open_source to
take a unique_xmalloc_ptr, rather than a char*, as an outgoing
argument type. This simplifies the API, ownership-wise, and allows
for the removal of some cleanups.
gdb/ChangeLog
2018-02-14 Tom Tromey <tom@tromey.com>
* symfile.c (symfile_bfd_open): Update.
* source.h (openp, source_full_path_of, find_and_open_source):
Change argument type to unique_xmalloc_ptr.
* source.c (openp): Take a unique_xmalloc_ptr.
(source_full_path_of, find_and_open_source): Likewise.
(open_source_file, symtab_to_fullname): Update.
* solist.h (struct target_so_ops) <find_and_open_solib>: Take a
unique_xmalloc_ptr.
* solib.c (solib_find_1): Use unique_xmalloc_ptr.
(exec_file_find): Update.
* psymtab.c (psymtab_to_fullname): Update.
* nto-tdep.h (nto_find_and_open_solib): Update.
* nto-tdep.c (nto_find_and_open_solib): Change temp_path to a
unique_xmalloc_ptr.
* exec.c (exec_file_attach): Update.
* dwarf2read.c (try_open_dwop_file): Use unique_xmalloc_ptr.
* cli/cli-cmds.c (find_and_open_script): Use unique_xmalloc_ptr.
gdb/ChangeLog:
* defs.h (enum openp_flags): New enum.
(OPF_TRY_CWD_FIRST, OPF_SEARCH_IN_PATH, OPF_RETURN_REALPATH):
Move to enum openp_flags.
(openp_flags): New enum flags.
(openp): Change parameter type to openp_flags.
* source.c (openp): Change parameter type to openp_flags.
* cli/cli-cmds.c (find_and_open_script): Use openp_flags.
* dwarf2read.c (try_open_dwop_file): Use openp_flags.
We have several places doing essentially the same thing; factor them
out to a central place. Some of the places overallocate for no good
reason, or use strcat unnecessarily. The centralized version is more
precise and to the point.
(I considered making the gdb::unique_xmalloc_ptr overload version of
make_completer_match_str try to realloc (not xrealloc) probably
avoiding an allocation in most cases, but that'd be probably overdoing
it, and also, now that I'm writing this I thought I'd try to see how
could we ever get to filename_completer with "text != word", but I
couldn't figure it out. Running the testsuite with 'gdb_assert (text
== word);' never tripped on the assertion either. So post gdb 8.1,
I'll probably propose a patch to simplify filename_completer a bit,
and the gdb::unique_xmalloc_str overload can be removed then.)
gdb/ChangeLog:
2017-12-13 Pedro Alves <palves@redhat.com>
* cli/cli-decode.c (complete_on_cmdlist, complete_on_enum): Use
make_completion_match_str.
* completer.c: Use gdb::unique_xmalloc_ptr and
make_completion_match_str.
(make_completion_match_str_1): New.
(make_completion_match_str(const char *, const char *,
const char *)): New.
(make_completion_match_str(gdb::unique_xmalloc_ptr<char> &&,
const char *, const char *)): New.
* completer.h (make_completion_match_str(const char *,
const char *, const char *)): New.
(make_completion_match_str(gdb::unique_xmalloc_ptr<char> &&,
const char *, const char *)): New.
* interps.c (interpreter_completer): Use make_completion_match_str.
* symtab.c (completion_list_add_name, add_filename_to_list): Use
make_completion_match_str.
Recent gcc 8 trunk emits the warning below,
../../../binutils-gdb/gdb/gdbserver/remote-utils.c:1204:14: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying 6 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy (buf, "watch:", 6);
~~~~~~~~^~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1118:15: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy (cmdtype1 + 1, cmdtype, len - 1);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1110:16: note: length computed here
len = strlen (cmdtype);
~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1120:15: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy (cmdtype2, cmdtype, len - 1);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1110:16: note: length computed here
len = strlen (cmdtype);
~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/cp-namespace.c:1071:11: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying 2 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy (full_name + scope_length, "::", 2);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This patch fixes it by using memcpy instead of strncpy.
gdb:
2017-11-22 Yao Qi <yao.qi@linaro.org>
* cli/cli-decode.c (help_list): Use memcpy instead of strncpy.
* cp-namespace.c (cp_lookup_transparent_type_loop): Likewise.
gdb/gdbserver:
2017-11-22 Yao Qi <yao.qi@linaro.org>
* remote-utils.c (prepare_resume_reply): Use memcpy.
The "x", "list", and "show commands" commands have special repetition
behavior: repeating the command doesn't re-run it with the same
arguments
This is currently implemented by modifying the passed-in argument; but
that won't work properly with const arguments (and seems pretty
obscure besides).
This patch adds a new "set_repeat_arguments" function and changes the
relevant places to call it.
gdb/ChangeLog
2017-11-07 Tom Tromey <tom@tromey.com>
* printcmd.c (x_command): Call set_repeat_arguments.
* cli/cli-cmds.c (list_command): Call set_repeat_arguments.
* top.c (repeat_arguments): New global.
(set_repeat_arguments): New function.
(execute_command): Handle repeat_arguments.
(show_commands): Calls set_repeat_arguments.
* command.h (set_repeat_arguments): Declare.
set_cmd_cfunc is only used in cli-decode.c, and I don't think there is
a good reason to expose it directly. So, this patch makes it private.
gdb/ChangeLog
2017-11-07 Tom Tromey <tom@tromey.com>
* command.h (set_cmd_cfunc): Don't declare.
* cli/cli-decode.c (set_cmd_cfunc): Now static.
This constifies add_com_suppress_notification and fixes the one
caller.
gdb/ChangeLog
2017-11-07 Tom Tromey <tom@tromey.com>
* stack.c (select_frame_command): Constify.
* cli/cli-decode.c (add_com_suppress_notification): Constify.
* command.h (add_com_suppress_notification): Constify.
This changes add_abbrev_prefix_cmd to take a const-taking callback
function and then fixes the one caller.
gdb/ChangeLog
2017-11-07 Tom Tromey <tom@tromey.com>
* breakpoint.c (stop_command): Constify.
* cli/cli-decode.c (struct cmd_list_element): Constify.
* command.h (add_abbrev_prefix_cmd): Constify.
... and also make GDB catch a few more cases of invalid input.
This fixes the inconsistency in GDB's output (e.g., "bad" vs "Bad")
exposed by the new tests added in the previous commit.
Also, makes the "0-0" and "inverted range" cases be loud errors.
Also makes GDB reject negative breakpoint number in ranges. We
already rejected negative number literals, but you could still subvert
that via convenience variables, like:
(gdb) set $bp -1
(gdb) disable $bp.1-2
The change to get_number_trailer fixes a bug exposed by the new tests.
The function did not handle parsing "-$num". [This wasn't visible in
the gdb.multi/tids.exp (which has similar tests) because the TID range
parsing is implemented differently.]
gdb/ChangeLog:
2017-11-07 Pedro Alves <palves@redhat.com>
* breakpoint.c (extract_bp_kind): New enum.
(extract_bp_num, extract_bp_or_bp_range): New functions, partially
factored out from ...
(extract_bp_number_and_location): ... here.
* cli/cli-utils.c (get_number_trailer): Handle '-$variable'.
gdb/testsuite/ChangeLog:
2017-11-07 Pedro Alves <palves@redhat.com>
* gdb.base/ena-dis-br.exp (test_ena_dis_br): Adjust test.
* gdb.cp/ena-dis-br-range.exp: Adjust tests.
(disable_invalid, disable_inverted, disable_negative): New
procedures.
("bad numbers"): New set of tests.
As reported here
https://sourceware.org/ml/gdb/2017-10/msg00020.html
the output of certain commands, like backtrace, doesn't appear anywhere
when it is run as a breakpoint command and when using MI.
The reason is that the current_uiout is set to the mi_ui_out while these
commands run, whereas we want the output as CLI output. Some commands
like "print" work, because they use printf_filtered (gdb_stdout, ...)
directly, bypassing the current ui_out.
The fix I did is to force setting the cli_uiout as the current_uiout
when calling execute_control_command. I am not sure if this is the
right way to fix the problem, comments about the approach would be
appreciated.
I enhanced gdb.mi/mi-break.exp to test the backtrace command.
Regtested on the buildbot.
gdb/ChangeLog:
* cli/cli-script.c (execute_control_command): Rename to ...
(execute_control_command_1): ... this.
(execute_control_command): New function.
gdb/testsuite/ChangeLog:
* gdb.mi/mi-break.exp (test_breakpoint_commands): Test backtrace
as a breakpoint command.
While we still have cleanups (i.e., make_cleanup & co), we must be
sure to add END_CATCH at the end of a TRY/CATCH/END_CATCH construct.
However, it's currently too easy to miss adding the END_CATCH, because
the code compiles anyway without it. I realized this when I noticed
that another patch I was working on missed several adding END_CATCH in
several new TRY/CATCH uses.
This commit fixes that by making TRY open a new scope that is only
closed by END_CATCH. This way, if you forget to add the END_CATCH,
then compilation fails due to the unbalanced curly braces.
This caught a couple places where we were missing END_CATCH in current
master, also fixed by the patch.
gdb/ChangeLog:
2017-10-04 Pedro Alves <palves@redhat.com>
* cli/cli-cmds.c (complete_command): Add missing END_CATCH.
* common/common-exceptions.h (TRY): Open an outermost scope.
Expand intro comment.
(CATCH): Reindent.
(END_CATCH): Close the outermost scope.
* completer.c (complete_line_internal): Add missing END_CATCH.
This commit adds new "set/show cwd" commands, which are used to
set/show the current working directory of the inferior that will be
started.
The idea here is that "set cwd" will become the de facto way of
setting the inferior's cwd. Currently, the user can use "cd" for
that, but there are side effects: with "cd", GDB also switches to
another directory, and that can impact the loading of scripts and
other files. With "set cwd", we separate the logic into a new
command.
To maintain backward compatibility, if the user issues a "cd" command
but doesn't use "set cwd", then the inferior's cwd will still be
changed according to what the user specified. However, "set cwd" has
precedence over "cd", so it can always be used to override it.
"set cwd" works in the following way:
- If the user sets the inferior's cwd by using "set cwd", then this
directory is saved into current_inferior ()->cwd and is used when
the inferior is started (see below).
- If the user doesn't set the inferior's cwd by using "set cwd", but
rather use the "cd" command as before, then this directory is
inherited by the inferior because GDB will have chdir'd into it.
On Unix-like hosts, the way the directory is changed before the
inferior execution is by expanding the user set directory before the
fork, and then "chdir" after the call to fork/vfork on
"fork_inferior", but before the actual execution. On Windows, the
inferior cwd set by the user is passed directly to the CreateProcess
call, which takes care of the actual chdir for us.
This way, we'll make sure that GDB's cwd is not affected by the user
set cwd.
gdb/ChangeLog:
2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com>
* NEWS (New commands): Mention "set/show cwd".
* cli/cli-cmds.c (_initialize_cli_cmds): Mention "set cwd" on
"cd" command's help text.
* common/common-inferior.h (get_inferior_cwd): New prototype.
* infcmd.c (inferior_cwd_scratch): New global variable.
(set_inferior_cwd): New function.
(get_inferior_cwd): Likewise.
(set_cwd_command): Likewise.
(show_cwd_command): Likewise.
(_initialize_infcmd): Add "set/show cwd" commands.
* inferior.h (class inferior) <cwd>: New field.
* nat/fork-inferior.c: Include "gdb_tilde_expand.h".
(fork_inferior): Change inferior's cwd before its execution.
* windows-nat.c (windows_create_inferior): Pass inferior's cwd
to CreateProcess.
gdb/gdbserver/ChangeLog:
2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com>
* inferiors.c (current_inferior_cwd): New global variable.
(get_inferior_cwd): New function.
* inferiors.h (struct process_info) <cwd>: New field.
gdb/doc/ChangeLog:
2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com>
* gdb.texinfo (Starting your Program) <The working directory.>:
Mention new "set cwd" command.
(Working Directory) <Your Program's Working Directory>:
Rephrase to explain that "set cwd" exists and is the default
way to change the inferior's cwd.
gdb/testsuite/ChangeLog:
2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com>
* gdb.base/set-cwd.c: New file.
* gdb.base/set-cwd.exp: Likewise.
This adds two add_cmd overloads: one whose callback takes a const char *,
and one that doesn't accept a function at all. The no-function overload
was introduced to avoid ambiguity when NULL was passed as the function.
Long term the goal is for all commands to take const arguments, and
for the non-const variants to be removed entirely.
gdb/ChangeLog
2017-09-27 Tom Tromey <tom@tromey.com>
* cli/cli-decode.c (add_cmd, set_cmd_cfunc): New function
overloads.
(do_add_cmd): Rename from add_cmd. Don't call set_cmd_cfunc.
(do_const_cfunc): New function.
(cmd_cfunc_eq): New overload.
(cli_user_command_p): Check do_const_cfunc.
* cli/cli-decode.h (struct cmd_list_element) <function>: New field
const_cfunc.
* command.h (add_cmd): Add const overload and no-function
overload.
(set_cmd_cfunc): Add const overload.
(cmd_const_cfunc_ftype): Declare.
(cmd_cfunc_eq): Add const overload.
* breakpoint.c, cli-cmds.c, cli-dump.c, guile/scm-cmd.c,
python/py-cmd.c, target.c, tracepoint.c: Use no-function add_cmd
overload.
Currently we have "current_directory" and "gdb_dirbuf" globals, which
means that we basically have two possible places to consult when we
want to know GDB's current working directory.
This is not ideal and can lead to confusion. Moreover, the way we're
using "gdb_difbuf" along with "getcwd" is problematic because we
declare the buffer with "1024" elements hardcoded, which does not take
into account longer pathnames that are possible in many filesystems.
Using "PATH_MAX" would also not be a solution because of portability
problems. Therefore, the best solution is to rely on the fact that
"getcwd (NULL, 0)" will "do the right thing" and return a
heap-allocated string containing the full path. With the new "getcwd"
module from gnulib, it is now possible to do that without worrying
about breaking some host.
With this patch "current_directory" is now the only place to check for
GDB's cwd.
Reviewed-by: Pedro Alves <palves@redhat.com>
gdb/ChangeLog:
2017-09-22 Sergio Durigan Junior <sergiodj@redhat.com>
* cli/cli-cmds.c (pwd_command): Use "getcwd (NULL, 0)".
(cd_command): Likewise. Free "current_directory" before
assigning to it.
* main.c (captured_main_1): Use "getcwd (NULL, 0)".
* mi/mi-cmd-env.c (mi_cmd_env_pwd): Likewise.
* top.c (gdb_dirbuf): Remove global declaration.
* top.h (gdb_dirbuf): Likewise.
Currently, with an ambiguous "list first,last", we get:
(gdb) list bar,main
Specified first line 'bar' is ambiguous:
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 97
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 98
This commit makes gdb's output above a bit clearer by printing the
symbol name as well:
(gdb) list bar,main
Specified first line 'bar' is ambiguous:
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 97, symbol: "bar(A)"
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 98, symbol: "bar(B)"
And while at it, makes gdb print the symbol name when actually listing
multiple locations too. I.e., before (with "set listsize 2"):
(gdb) list bar
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 97
96
97 int bar (A) { return 11; }
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 98
97 int bar (A) { return 11; }
98 int bar (B) { return 22; }
After:
(gdb) list bar
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 97, symbol: "bar(A)"
96
97 int bar (A) { return 11; }
file: "src/gdb/testsuite/gdb.cp/overload.cc", line number: 98, symbol: "bar(B)"
97 int bar (A) { return 11; }
98 int bar (B) { return 22; }
Currently, the result of decoding a linespec loses information about
the original symbol that was found. All we end up with is an address.
This makes it difficult to find the original symbol again to get at
its print name. Fix that by storing a pointer to the symbol in the
sal. We already store the symtab and obj_section, so it feels like a
natural progression to me. This avoids having to do any extra symbol
lookup too.
gdb/ChangeLog:
2017-09-20 Pedro Alves <palves@redhat.com>
* cli/cli-cmds.c (list_command): Use print_sal_location.
(print_sal_location): New function.
(ambiguous_line_spec): Use print_sal_location.
* linespec.c (symbol_to_sal): Record the symbol in the sal.
* symtab.c (find_function_start_sal): Likewise.
* symtab.h (symtab_and_line::symbol): New field.
gdb/testsuite/ChangeLog:
2017-09-20 Pedro Alves <palves@redhat.com>
* gdb.base/list-ambiguous.exp (test_list_ambiguous_symbol): Expect
symbol names in gdb's output.
* gdb.cp/overload.exp ("list all overloads"): Likewise.
This removes clear_hook_in_cleanup in favor of a scoped_restore-like
class. scoped_restore itself can't be used because hook_in is a
bitfield.
ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* cli/cli-script.c (class scoped_restore_hook_in): New.
(clear_hook_in_cleanup): Remove.
(execute_cmd_pre_hook, execute_cmd_post_hook): Use
scoped_restore_hook_in.
This removes interp_set_temp and an associated cleanup, in favor of a
new RAII class, scoped_restore_interp.
ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* cli/cli-script.c (restore_interp): Remove.
(read_command_lines): Use scoped_restore_interp.
* interps.c (scoped_restore_interp::set_temp): Rename from
interp_set_temp.
* interps.h (class scoped_restore_interp): New.
(interp_set_temp): Remove.
Change extract_arg to return a std::string and fix up all the users.
I think string is mildly better than unique_xmalloc_ptr<char>, when
possible, because it provides a more robust API.
I changed the error messages emitted from find_location_by_number to
avoid either writing to a string or an extra allocation; this can be
changed but I thought that the new message was not any less clear.
You can see an example in the testsuite patch.
ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* demangle.c (demangle_command): Update.
* breakpoint.c (disable_command): Update.
(enable_command): Update.
(find_location_by_number): Make "number" const. Use
get_number_trailer.
* cli/cli-utils.c (extract_arg): Return std::string.
* probe.c (parse_probe_linespec): Update. Change types.
(collect_probes): Take string arguments.
(parse_probe_linespec): Likewise.
(info_probes_for_ops): Update.
(enable_probes_command): Update.
(disable_probes_command): Update.
* break-catch-sig.c (catch_signal_split_args): Update.
* mi/mi-parse.c (mi_parse): Update.
testsuite/ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* gdb.base/ena-dis-br.exp (test_ena_dis_br): Update test.
This renames a few functions -- skip_spaces_const,
skip_to_space_const, get_number_const, extract_arg_const -- to drop
the "_const" suffix and instead rely on overloading.
This makes future const fixes simpler by reducing the number of lines
that must be changed. I think it is also not any less clear, as all
these functions have the same interface as their non-const versions by
design. Furthermore there's an example of using an overload in-tree
already, namely check_for_argument.
This patch was largely created using some perl one-liners; then a few
fixes were applied by hand.
ChangeLog
2017-09-11 Tom Tromey <tom@tromey.com>
* common/common-utils.h (skip_to_space): Remove macro, redeclare
as function.
(skip_to_space): Rename from skip_to_space_const.
* common/common-utils.c (skip_to_space): New function.
(skip_to_space): Rename from skip_to_space_const.
* cli/cli-utils.h (get_number): Rename from get_number_const.
(extract_arg): Rename from extract_arg_const.
* cli/cli-utils.c (get_number): Rename from get_number_const.
(extract_arg): Rename from extract_arg_const.
(number_or_range_parser::get_number): Use ::get_number.
* aarch64-linux-tdep.c, ada-lang.c, arm-linux-tdep.c, ax-gdb.c,
break-catch-throw.c, breakpoint.c, cli/cli-cmds.c, cli/cli-dump.c,
cli/cli-script.c, cli/cli-setshow.c, compile/compile.c,
completer.c, demangle.c, disasm.c, findcmd.c, linespec.c,
linux-tdep.c, linux-thread-db.c, location.c, mi/mi-parse.c,
minsyms.c, nat/linux-procfs.c, printcmd.c, probe.c,
python/py-breakpoint.c, record.c, rust-exp.y, serial.c, stack.c,
stap-probe.c, tid-parse.c, tracepoint.c: Update all callers.
Pedro Alves
Philippe Waroquiers
Tom Tromey
Simon Marchi
Joel Brobecker
Simon Marchi
Yao Qi
Sergio Durigan Junior
John Baldwin