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4b5e8d19af
New settings allow to better control what frame information is printed. 'set print frame-info' allows to override the default frame information printed when a GDB command prints a frame. The backtrace command has a new option -frame-info to override this global setting. It is now possible to have very short frame information by using the new 'set print frame-arguments presence' and 'set print frame-info short-location'. Combined with 'set print address off', a backtrace will only show the essential information to see the function call chain, e.g.: (gdb) set print address off (gdb) set print frame-arguments presence (gdb) set print frame-info short-location (gdb) bt #0 break_me () #1 call_me (...) #2 main () (gdb) This is handy in particular for big backtraces with functions having many arguments. Python frame filter printing logic has been updated to respect the new setting in non MI mode. Also, the default frame information printed was inconsistent when backtrace was printing the frame information itself, or when the python frame filtering code was printing the frame information. This patch changes the default of python frame filtering to have a consistent behaviour regarding printed frame-information, whatever the presence/activity/matches of python filters. 2019-07-29 Philippe Waroquiers <philippe.waroquiers@skynet.be> * frame.h (enum print_what): New value 'SHORT_LOCATION', update comments. (print_frame_info_auto, print_frame_info_source_line, print_frame_info_location, print_frame_info_source_and_location, print_frame_info_location_and_address, print_frame_info_short_location): New declarations. (struct frame_print_options): New member print_frame_info. * extension.h (enum ext_lang_frame_args): New value CLI_PRESENCE. * stack.h (get_user_print_what_frame_info): New declaration. (frame_show_address): New declaration. * stack.c (print_frame_arguments_choices): New value 'presence'. (print_frame_info_auto, print_frame_info_source_line, print_frame_info_location, print_frame_info_source_and_location, print_frame_info_location_and_address, print_frame_info_short_location, print_frame_info_choices, print_frame_info_print_what): New definitions. (print_frame_args): Only print dots for args if print frame-arguments is 'presence'. (frame_print_option_defs): New element for "frame-info". (get_user_print_what_frame_info): New function. (frame_show_address): Make non static. Move comment to stack.h. (print_frame_info_to_print_what): New function. (print_frame_info): Update comment. Use fp_opts.print_frame_info to decide what to print. (backtrace_command_1): Handle the new print_frame_arguments_presence value. (_initialize_stack): Call add_setshow_enum_cmd for frame-info. * python/py-framefilter.c (py_print_args): Handle CLI_PRESENCE. (py_print_frame): In non-mi mode, use LOCATION as default for print_what, similarly to frame information printed directly by backtrace command. Handle frame-info user option in non MI mode.
73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
/* Stack manipulation commands, for GDB the GNU Debugger.
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Copyright (C) 2003-2019 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef STACK_H
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#define STACK_H
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/* Access method used by the MI -stack-select-frame command to switch to
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frame FI. This differs from SELECT_FRAME in that the observers for a
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user selected context change will be triggered. */
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void select_frame_for_mi (struct frame_info *fi);
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gdb::unique_xmalloc_ptr<char> find_frame_funname (struct frame_info *frame,
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enum language *funlang,
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struct symbol **funcp);
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typedef void (*iterate_over_block_arg_local_vars_cb) (const char *print_name,
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struct symbol *sym,
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void *cb_data);
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void iterate_over_block_arg_vars (const struct block *block,
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iterate_over_block_arg_local_vars_cb cb,
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void *cb_data);
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void iterate_over_block_local_vars (const struct block *block,
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iterate_over_block_arg_local_vars_cb cb,
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void *cb_data);
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/* Initialize *WHAT to be a copy of the user desired print what frame info.
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If !WHAT.has_value (), the printing function chooses a default set of
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information to print, otherwise the printing function should print
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the relevant information. */
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void get_user_print_what_frame_info (gdb::optional<enum print_what> *what);
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/* Return 1 if we should display the address in addition to the location,
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because we are in the middle of a statement. */
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int frame_show_address (struct frame_info *frame, struct symtab_and_line sal);
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/* Get or set the last displayed symtab and line, which is, e.g. where we set a
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* breakpoint when `break' is supplied with no arguments. */
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void clear_last_displayed_sal (void);
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int last_displayed_sal_is_valid (void);
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struct program_space* get_last_displayed_pspace (void);
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CORE_ADDR get_last_displayed_addr (void);
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struct symtab* get_last_displayed_symtab (void);
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int get_last_displayed_line (void);
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symtab_and_line get_last_displayed_sal ();
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/* Completer for the "frame apply all" command. */
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void frame_apply_all_cmd_completer (struct cmd_list_element *ignore,
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completion_tracker &tracker,
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const char *text, const char */*word*/);
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#endif /* #ifndef STACK_H */
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