Limit breakpoint re-set to the current program space
Currently, we always re-set all locations of all breakpoints. This commit makes us re-set only locations of the current program space. If we loaded symbols to a program space (e.g., "file" command or some shared library was loaded), GDB must run through all breakpoints and determine if any new locations need to be added to the breakpoint. However, there's no reason to recreate locations for _other_ program spaces, as those haven't changed. Similarly, when we create a new inferior, through e.g., a fork, GDB must run through all breakpoints and determine if any new locations need to be added to the breakpoint. There's no reason to destroy the locations of the parent inferior and other inferiors. We know those won't change. In addition to being inneficient, resetting breakpoints of inferiors that are currently running is problematic, because: - some targets can't read memory while the inferior is running. - the inferior might exit while we're re-setting its breakpoints, which may confuse prologue skipping. I went through all the places where we call breakpoint_re_set, and it seems to me that all can be changed to only re-set locations of the current program space. The patch that reversed threads order in "info threads" etc. happened to make gdb.threads/fork-plus-thread.exp expose this problem when testing on x86/-m32. The problem was latent and masked out by chance by the code-cache: https://sourceware.org/ml/gdb-patches/2016-01/msg00213.html Tested on x86-64 F20, native (-m64/-m32) and extended-remote gdbserver. Fixes the regression discussed in the url above with --target_board=unix/-m32: -FAIL: gdb.threads/fork-plus-threads.exp: detach-on-fork=off: inferior 1 exited +PASS: gdb.threads/fork-plus-threads.exp: detach-on-fork=off: inferior 1 exited -FAIL: gdb.threads/fork-plus-threads.exp: detach-on-fork=off: no threads left (timeout) -FAIL: gdb.threads/fork-plus-threads.exp: detach-on-fork=off: only inferior 1 left (the program exited) +PASS: gdb.threads/fork-plus-threads.exp: detach-on-fork=off: no threads left +PASS: gdb.threads/fork-plus-threads.exp: detach-on-fork=off: only inferior 1 left gdb/ChangeLog: 2016-01-19 Pedro Alves <palves@redhat.com> * ax-gdb.c (agent_command_1): Adjust call to decode_line_full. * break-catch-throw.c (re_set_exception_catchpoint): Pass the current program space down to linespec decoding and breakpoint location updating. * breakpoint.c (parse_breakpoint_sals): Adjust calls to decode_line_full. (until_break_command): Adjust calls to decode_line_1. (base_breakpoint_decode_location, bkpt_decode_location): Add 'search_pspace' parameter. Pass it along. (bkpt_probe_create_sals_from_location): Adjust calls to parse_probes. (tracepoint_decode_location, tracepoint_probe_decode_location) (strace_marker_decode_location): Add 'search_pspace' parameter. Pass it along. (all_locations_are_pending): Rewrite to take a breakpoint and program space as arguments instead. (hoist_existing_locations): New function. (update_breakpoint_locations): Add 'filter_pspace' parameter. Use hoist_existing_locations instead of always removing all locations, and adjust to all_locations_are_pending change. (location_to_sals): Add 'search_pspace' parameter. Pass it along. Don't disable the breakpoint if there are other locations in another program space. (breakpoint_re_set_default): Adjust to pass down the current program space as filter program space. (decode_location_default): Add 'search_pspace' parameter and pass it along. (prepare_re_set_context): Don't switch program space here. (breakpoint_re_set): Use save_current_space_and_thread instead of save_current_program_space. * breakpoint.h (struct breakpoint_ops) <decode_location>: Add 'search_pspace' parameter. (update_breakpoint_locations): Add 'filter_pspace' parameter. * cli/cli-cmds.c (edit_command, list_command): Adjust calls to decode_line_1. * elfread.c (elf_gnu_ifunc_resolver_return_stop): Pass the current program space as filter program space. * linespec.c (struct linespec_state) <search_pspace>: New field. (create_sals_line_offset, convert_explicit_location_to_sals) (parse_linespec): Pass the search program space down. (linespec_state_constructor): Add 'search_pspace' parameter. Store it. (linespec_parser_new): Add 'search_pspace' parameter and pass it along. (linespec_lex_to_end): Adjust. (decode_line_full, decode_line_1): Add 'search_pspace' parameter and pass it along. (decode_line_with_last_displayed): Adjust. (collect_symtabs_from_filename, symtabs_from_filename): New 'search_pspace' parameter. Use it. (find_function_symbols): Pass the search program space down. * linespec.h (decode_line_1, decode_line_full): Add 'search_pspace' parameter. * probe.c (parse_probes_in_pspace): New function, factored out from ... (parse_probes): ... this. Add 'search_pspace' parameter and use it. * probe.h (parse_probes): Add pspace' parameter. * python/python.c (gdbpy_decode_line): Adjust. * tracepoint.c (scope_info): Adjust.
This commit is contained in:
Pedro Alves
parent
bd0a71fa16
commit
c2f4122d5c
13 changed files with 310 additions and 121 deletions
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@ -2649,7 +2649,7 @@ agent_command_1 (char *exp, int eval)
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init_linespec_result (&canonical);
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location = new_linespec_location (&exp);
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old_chain = make_cleanup_delete_event_location (location);
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decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
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decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, NULL,
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(struct symtab *) NULL, 0, &canonical,
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NULL, NULL);
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make_cleanup_destroy_linespec_result (&canonical);
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@ -212,6 +212,7 @@ re_set_exception_catchpoint (struct breakpoint *self)
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struct cleanup *cleanup;
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enum exception_event_kind kind = classify_exception_breakpoint (self);
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struct event_location *location;
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struct program_space *filter_pspace = current_program_space;
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/* We first try to use the probe interface. */
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TRY
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@ -219,10 +220,9 @@ re_set_exception_catchpoint (struct breakpoint *self)
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location
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= new_probe_location (exception_functions[kind].probe);
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cleanup = make_cleanup_delete_event_location (location);
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sals = parse_probes (location, NULL);
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sals = parse_probes (location, filter_pspace, NULL);
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do_cleanups (cleanup);
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}
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CATCH (e, RETURN_MASK_ERROR)
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{
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/* Using the probe interface failed. Let's fallback to the normal
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@ -236,7 +236,7 @@ re_set_exception_catchpoint (struct breakpoint *self)
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= ASTRDUP (exception_functions[kind].function);
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location = new_explicit_location (&explicit_loc);
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cleanup = make_cleanup_delete_event_location (location);
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self->ops->decode_location (self, location, &sals);
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self->ops->decode_location (self, location, filter_pspace, &sals);
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do_cleanups (cleanup);
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}
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CATCH (ex, RETURN_MASK_ERROR)
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@ -251,7 +251,7 @@ re_set_exception_catchpoint (struct breakpoint *self)
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END_CATCH
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cleanup = make_cleanup (xfree, sals.sals);
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update_breakpoint_locations (self, sals, sals_end);
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update_breakpoint_locations (self, filter_pspace, sals, sals_end);
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do_cleanups (cleanup);
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}
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127
gdb/breakpoint.c
127
gdb/breakpoint.c
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@ -126,6 +126,7 @@ static void create_breakpoints_sal_default (struct gdbarch *,
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static void decode_location_default (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals);
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static void clear_command (char *, int);
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@ -9545,7 +9546,7 @@ parse_breakpoint_sals (const struct event_location *location,
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&& strchr ("+-", address[0]) != NULL
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&& address[1] != '['))
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{
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decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
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decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, NULL,
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get_last_displayed_symtab (),
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get_last_displayed_line (),
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canonical, NULL, NULL);
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@ -9553,7 +9554,7 @@ parse_breakpoint_sals (const struct event_location *location,
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}
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}
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decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
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decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, NULL,
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cursal.symtab, cursal.line, canonical, NULL, NULL);
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}
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@ -10447,7 +10448,7 @@ break_range_command (char *arg, int from_tty)
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where +14 means 14 lines from the start location. */
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end_location = string_to_event_location (&arg, current_language);
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make_cleanup_delete_event_location (end_location);
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decode_line_full (end_location, DECODE_LINE_FUNFIRSTLINE,
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decode_line_full (end_location, DECODE_LINE_FUNFIRSTLINE, NULL,
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sal_start.symtab, sal_start.line,
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&canonical_end, NULL, NULL);
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@ -11712,12 +11713,12 @@ until_break_command (char *arg, int from_tty, int anywhere)
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cleanup = make_cleanup_delete_event_location (location);
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if (last_displayed_sal_is_valid ())
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sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE,
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sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE, NULL,
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get_last_displayed_symtab (),
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get_last_displayed_line ());
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else
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sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE,
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(struct symtab *) NULL, 0);
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NULL, (struct symtab *) NULL, 0);
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if (sals.nelts != 1)
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error (_("Couldn't get information on specified line."));
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@ -13018,6 +13019,7 @@ base_breakpoint_create_breakpoints_sal (struct gdbarch *gdbarch,
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static void
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base_breakpoint_decode_location (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
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internal_error_pure_virtual_called ();
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@ -13267,9 +13269,10 @@ bkpt_create_breakpoints_sal (struct gdbarch *gdbarch,
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static void
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bkpt_decode_location (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
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decode_location_default (b, location, sals);
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decode_location_default (b, location, search_pspace, sals);
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}
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/* Virtual table for internal breakpoints. */
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@ -13453,7 +13456,7 @@ bkpt_probe_create_sals_from_location (const struct event_location *location,
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{
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struct linespec_sals lsal;
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lsal.sals = parse_probes (location, canonical);
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lsal.sals = parse_probes (location, NULL, canonical);
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lsal.canonical = xstrdup (event_location_to_string (canonical->location));
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VEC_safe_push (linespec_sals, canonical->sals, &lsal);
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}
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@ -13461,9 +13464,10 @@ bkpt_probe_create_sals_from_location (const struct event_location *location,
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static void
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bkpt_probe_decode_location (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
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*sals = parse_probes (location, NULL);
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*sals = parse_probes (location, search_pspace, NULL);
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if (!sals->sals)
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error (_("probe not found"));
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}
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@ -13585,9 +13589,10 @@ tracepoint_create_breakpoints_sal (struct gdbarch *gdbarch,
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static void
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tracepoint_decode_location (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
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decode_location_default (b, location, sals);
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decode_location_default (b, location, search_pspace, sals);
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}
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struct breakpoint_ops tracepoint_breakpoint_ops;
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@ -13608,10 +13613,11 @@ tracepoint_probe_create_sals_from_location
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static void
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tracepoint_probe_decode_location (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
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/* We use the same method for breakpoint on probes. */
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bkpt_probe_decode_location (b, location, sals);
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bkpt_probe_decode_location (b, location, search_pspace, sals);
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}
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static struct breakpoint_ops tracepoint_probe_breakpoint_ops;
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@ -13776,6 +13782,7 @@ strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch,
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static void
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strace_marker_decode_location (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
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struct tracepoint *tp = (struct tracepoint *) b;
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@ -13993,11 +14000,19 @@ delete_command (char *arg, int from_tty)
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map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL);
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}
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/* Return true if all locations of B bound to PSPACE are pending. If
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PSPACE is NULL, all locations of all program spaces are
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considered. */
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static int
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all_locations_are_pending (struct bp_location *loc)
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all_locations_are_pending (struct breakpoint *b, struct program_space *pspace)
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{
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for (; loc; loc = loc->next)
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if (!loc->shlib_disabled
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struct bp_location *loc;
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for (loc = b->loc; loc != NULL; loc = loc->next)
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if ((pspace == NULL
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|| loc->pspace == pspace)
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&& !loc->shlib_disabled
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&& !loc->pspace->executing_startup)
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return 0;
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return 1;
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@ -14202,17 +14217,58 @@ locations_are_equal (struct bp_location *a, struct bp_location *b)
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return 1;
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}
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/* Create new breakpoint locations for B (a hardware or software breakpoint)
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based on SALS and SALS_END. If SALS_END.NELTS is not zero, then B is
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a ranged breakpoint. */
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/* Split all locations of B that are bound to PSPACE out of B's
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location list to a separate list and return that list's head. If
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PSPACE is NULL, hoist out all locations of B. */
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static struct bp_location *
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hoist_existing_locations (struct breakpoint *b, struct program_space *pspace)
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{
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struct bp_location head;
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struct bp_location *i = b->loc;
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struct bp_location **i_link = &b->loc;
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struct bp_location *hoisted = &head;
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if (pspace == NULL)
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{
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i = b->loc;
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b->loc = NULL;
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return i;
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}
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head.next = NULL;
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while (i != NULL)
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{
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if (i->pspace == pspace)
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{
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*i_link = i->next;
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i->next = NULL;
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hoisted->next = i;
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hoisted = i;
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}
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else
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i_link = &i->next;
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i = *i_link;
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}
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return head.next;
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}
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/* Create new breakpoint locations for B (a hardware or software
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breakpoint) based on SALS and SALS_END. If SALS_END.NELTS is not
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zero, then B is a ranged breakpoint. Only recreates locations for
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FILTER_PSPACE. Locations of other program spaces are left
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untouched. */
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void
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update_breakpoint_locations (struct breakpoint *b,
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struct program_space *filter_pspace,
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struct symtabs_and_lines sals,
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struct symtabs_and_lines sals_end)
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{
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int i;
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struct bp_location *existing_locations = b->loc;
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struct bp_location *existing_locations;
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if (sals_end.nelts != 0 && (sals.nelts != 1 || sals_end.nelts != 1))
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{
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@ -14232,10 +14288,10 @@ update_breakpoint_locations (struct breakpoint *b,
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We'd like to retain the location, so that when the library is
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loaded again, we don't loose the enabled/disabled status of the
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individual locations. */
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if (all_locations_are_pending (existing_locations) && sals.nelts == 0)
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if (all_locations_are_pending (b, filter_pspace) && sals.nelts == 0)
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return;
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b->loc = NULL;
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existing_locations = hoist_existing_locations (b, filter_pspace);
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for (i = 0; i < sals.nelts; ++i)
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{
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@ -14326,7 +14382,7 @@ update_breakpoint_locations (struct breakpoint *b,
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static struct symtabs_and_lines
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location_to_sals (struct breakpoint *b, struct event_location *location,
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int *found)
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struct program_space *search_pspace, int *found)
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{
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struct symtabs_and_lines sals = {0};
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struct gdb_exception exception = exception_none;
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@ -14335,7 +14391,7 @@ location_to_sals (struct breakpoint *b, struct event_location *location,
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TRY
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{
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b->ops->decode_location (b, location, &sals);
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b->ops->decode_location (b, location, search_pspace, &sals);
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}
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CATCH (e, RETURN_MASK_ERROR)
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{
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@ -14351,7 +14407,10 @@ location_to_sals (struct breakpoint *b, struct event_location *location,
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breakpoint being disabled, and don't want to see more
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errors. */
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if (e.error == NOT_FOUND_ERROR
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&& (b->condition_not_parsed
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&& (b->condition_not_parsed
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|| (b->loc != NULL
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&& search_pspace != NULL
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&& b->loc->pspace != search_pspace)
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|| (b->loc && b->loc->shlib_disabled)
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|| (b->loc && b->loc->pspace->executing_startup)
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|| b->enable_state == bp_disabled))
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@ -14420,8 +14479,9 @@ breakpoint_re_set_default (struct breakpoint *b)
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struct symtabs_and_lines sals, sals_end;
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struct symtabs_and_lines expanded = {0};
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struct symtabs_and_lines expanded_end = {0};
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struct program_space *filter_pspace = current_program_space;
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sals = location_to_sals (b, b->location, &found);
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sals = location_to_sals (b, b->location, filter_pspace, &found);
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if (found)
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{
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make_cleanup (xfree, sals.sals);
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@ -14430,7 +14490,8 @@ breakpoint_re_set_default (struct breakpoint *b)
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if (b->location_range_end != NULL)
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{
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sals_end = location_to_sals (b, b->location_range_end, &found);
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sals_end = location_to_sals (b, b->location_range_end,
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filter_pspace, &found);
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if (found)
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{
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make_cleanup (xfree, sals_end.sals);
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@ -14438,7 +14499,7 @@ breakpoint_re_set_default (struct breakpoint *b)
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}
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}
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update_breakpoint_locations (b, expanded, expanded_end);
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update_breakpoint_locations (b, filter_pspace, expanded, expanded_end);
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}
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/* Default method for creating SALs from an address string. It basically
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@ -14482,12 +14543,13 @@ create_breakpoints_sal_default (struct gdbarch *gdbarch,
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static void
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decode_location_default (struct breakpoint *b,
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const struct event_location *location,
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struct program_space *search_pspace,
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struct symtabs_and_lines *sals)
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{
|
||||
struct linespec_result canonical;
|
||||
|
||||
init_linespec_result (&canonical);
|
||||
decode_line_full (location, DECODE_LINE_FUNFIRSTLINE,
|
||||
decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, search_pspace,
|
||||
(struct symtab *) NULL, 0,
|
||||
&canonical, multiple_symbols_all,
|
||||
b->filter);
|
||||
|
|
@ -14514,15 +14576,10 @@ decode_location_default (struct breakpoint *b,
|
|||
static struct cleanup *
|
||||
prepare_re_set_context (struct breakpoint *b)
|
||||
{
|
||||
struct cleanup *cleanups;
|
||||
|
||||
input_radix = b->input_radix;
|
||||
cleanups = save_current_space_and_thread ();
|
||||
if (b->pspace != NULL)
|
||||
switch_to_program_space_and_thread (b->pspace);
|
||||
set_language (b->language);
|
||||
|
||||
return cleanups;
|
||||
return make_cleanup (null_cleanup, NULL);
|
||||
}
|
||||
|
||||
/* Reset a breakpoint given it's struct breakpoint * BINT.
|
||||
|
|
@ -14542,7 +14599,9 @@ breakpoint_re_set_one (void *bint)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* Re-set all breakpoints after symbols have been re-loaded. */
|
||||
/* Re-set breakpoint locations for the current program space.
|
||||
Locations bound to other program spaces are left untouched. */
|
||||
|
||||
void
|
||||
breakpoint_re_set (void)
|
||||
{
|
||||
|
|
@ -14553,7 +14612,7 @@ breakpoint_re_set (void)
|
|||
|
||||
save_language = current_language->la_language;
|
||||
save_input_radix = input_radix;
|
||||
old_chain = save_current_program_space ();
|
||||
old_chain = save_current_space_and_thread ();
|
||||
|
||||
ALL_BREAKPOINTS_SAFE (b, b_tmp)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -599,13 +599,15 @@ struct breakpoint_ops
|
|||
int, const struct breakpoint_ops *,
|
||||
int, int, int, unsigned);
|
||||
|
||||
/* Given the location (second parameter), this method decodes it
|
||||
and provides the SAL locations related to it. For ordinary breakpoints,
|
||||
it calls `decode_line_full'.
|
||||
/* Given the location (second parameter), this method decodes it and
|
||||
provides the SAL locations related to it. For ordinary
|
||||
breakpoints, it calls `decode_line_full'. If SEARCH_PSPACE is
|
||||
not NULL, symbol search is restricted to just that program space.
|
||||
|
||||
This function is called inside `location_to_sals'. */
|
||||
void (*decode_location) (struct breakpoint *b,
|
||||
const struct event_location *location,
|
||||
struct program_space *search_pspace,
|
||||
struct symtabs_and_lines *sals);
|
||||
|
||||
/* Return true if this breakpoint explains a signal. See
|
||||
|
|
@ -1200,6 +1202,7 @@ extern void init_bp_location (struct bp_location *loc,
|
|||
struct breakpoint *owner);
|
||||
|
||||
extern void update_breakpoint_locations (struct breakpoint *b,
|
||||
struct program_space *filter_pspace,
|
||||
struct symtabs_and_lines sals,
|
||||
struct symtabs_and_lines sals_end);
|
||||
|
||||
|
|
|
|||
|
|
@ -818,7 +818,7 @@ edit_command (char *arg, int from_tty)
|
|||
arg1 = arg;
|
||||
location = string_to_event_location (&arg1, current_language);
|
||||
cleanup = make_cleanup_delete_event_location (location);
|
||||
sals = decode_line_1 (location, DECODE_LINE_LIST_MODE, 0, 0);
|
||||
sals = decode_line_1 (location, DECODE_LINE_LIST_MODE, NULL, NULL, 0);
|
||||
|
||||
filter_sals (&sals);
|
||||
if (! sals.nelts)
|
||||
|
|
@ -971,7 +971,7 @@ list_command (char *arg, int from_tty)
|
|||
|
||||
location = string_to_event_location (&arg1, current_language);
|
||||
make_cleanup_delete_event_location (location);
|
||||
sals = decode_line_1 (location, DECODE_LINE_LIST_MODE, 0, 0);
|
||||
sals = decode_line_1 (location, DECODE_LINE_LIST_MODE, NULL, NULL, 0);
|
||||
|
||||
filter_sals (&sals);
|
||||
if (!sals.nelts)
|
||||
|
|
@ -1015,10 +1015,10 @@ list_command (char *arg, int from_tty)
|
|||
make_cleanup_delete_event_location (location);
|
||||
if (dummy_beg)
|
||||
sals_end = decode_line_1 (location,
|
||||
DECODE_LINE_LIST_MODE, 0, 0);
|
||||
DECODE_LINE_LIST_MODE, NULL, NULL, 0);
|
||||
else
|
||||
sals_end = decode_line_1 (location, DECODE_LINE_LIST_MODE,
|
||||
sal.symtab, sal.line);
|
||||
NULL, sal.symtab, sal.line);
|
||||
|
||||
filter_sals (&sals_end);
|
||||
if (sals_end.nelts == 0)
|
||||
|
|
|
|||
|
|
@ -1006,7 +1006,7 @@ elf_gnu_ifunc_resolver_return_stop (struct breakpoint *b)
|
|||
sals_end.nelts = 0;
|
||||
|
||||
b->type = bp_breakpoint;
|
||||
update_breakpoint_locations (b, sals, sals_end);
|
||||
update_breakpoint_locations (b, current_program_space, sals, sals_end);
|
||||
}
|
||||
|
||||
/* A helper function for elf_symfile_read that reads the minimal
|
||||
|
|
|
|||
|
|
@ -123,6 +123,10 @@ struct linespec_state
|
|||
/* The program space as seen when the module was entered. */
|
||||
struct program_space *program_space;
|
||||
|
||||
/* If not NULL, the search is restricted to just this program
|
||||
space. */
|
||||
struct program_space *search_pspace;
|
||||
|
||||
/* The default symtab to use, if no other symtab is specified. */
|
||||
struct symtab *default_symtab;
|
||||
|
||||
|
|
@ -274,7 +278,8 @@ static struct symtabs_and_lines decode_objc (struct linespec_state *self,
|
|||
linespec_p ls,
|
||||
const char *arg);
|
||||
|
||||
static VEC (symtab_ptr) *symtabs_from_filename (const char *);
|
||||
static VEC (symtab_ptr) *symtabs_from_filename (const char *,
|
||||
struct program_space *pspace);
|
||||
|
||||
static VEC (symbolp) *find_label_symbols (struct linespec_state *self,
|
||||
VEC (symbolp) *function_symbols,
|
||||
|
|
@ -302,7 +307,9 @@ static void add_all_symbol_names_from_pspace (struct collect_info *info,
|
|||
struct program_space *pspace,
|
||||
VEC (const_char_ptr) *names);
|
||||
|
||||
static VEC (symtab_ptr) *collect_symtabs_from_filename (const char *file);
|
||||
static VEC (symtab_ptr) *
|
||||
collect_symtabs_from_filename (const char *file,
|
||||
struct program_space *pspace);
|
||||
|
||||
static void decode_digits_ordinary (struct linespec_state *self,
|
||||
linespec_p ls,
|
||||
|
|
@ -1842,7 +1849,8 @@ create_sals_line_offset (struct linespec_state *self,
|
|||
fullname = symtab_to_fullname (self->default_symtab);
|
||||
VEC_pop (symtab_ptr, ls->file_symtabs);
|
||||
VEC_free (symtab_ptr, ls->file_symtabs);
|
||||
ls->file_symtabs = collect_symtabs_from_filename (fullname);
|
||||
ls->file_symtabs = collect_symtabs_from_filename (fullname,
|
||||
self->search_pspace);
|
||||
use_default = 1;
|
||||
}
|
||||
|
||||
|
|
@ -2094,7 +2102,8 @@ convert_explicit_location_to_sals (struct linespec_state *self,
|
|||
TRY
|
||||
{
|
||||
result->file_symtabs
|
||||
= symtabs_from_filename (explicit_loc->source_filename);
|
||||
= symtabs_from_filename (explicit_loc->source_filename,
|
||||
self->search_pspace);
|
||||
}
|
||||
CATCH (except, RETURN_MASK_ERROR)
|
||||
{
|
||||
|
|
@ -2285,7 +2294,8 @@ parse_linespec (linespec_parser *parser, const char *arg)
|
|||
TRY
|
||||
{
|
||||
PARSER_RESULT (parser)->file_symtabs
|
||||
= symtabs_from_filename (user_filename);
|
||||
= symtabs_from_filename (user_filename,
|
||||
PARSER_STATE (parser)->search_pspace);
|
||||
}
|
||||
CATCH (ex, RETURN_MASK_ERROR)
|
||||
{
|
||||
|
|
@ -2367,6 +2377,7 @@ parse_linespec (linespec_parser *parser, const char *arg)
|
|||
static void
|
||||
linespec_state_constructor (struct linespec_state *self,
|
||||
int flags, const struct language_defn *language,
|
||||
struct program_space *search_pspace,
|
||||
struct symtab *default_symtab,
|
||||
int default_line,
|
||||
struct linespec_result *canonical)
|
||||
|
|
@ -2375,6 +2386,7 @@ linespec_state_constructor (struct linespec_state *self,
|
|||
self->language = language;
|
||||
self->funfirstline = (flags & DECODE_LINE_FUNFIRSTLINE) ? 1 : 0;
|
||||
self->list_mode = (flags & DECODE_LINE_LIST_MODE) ? 1 : 0;
|
||||
self->search_pspace = search_pspace;
|
||||
self->default_symtab = default_symtab;
|
||||
self->default_line = default_line;
|
||||
self->canonical = canonical;
|
||||
|
|
@ -2389,6 +2401,7 @@ linespec_state_constructor (struct linespec_state *self,
|
|||
static void
|
||||
linespec_parser_new (linespec_parser *parser,
|
||||
int flags, const struct language_defn *language,
|
||||
struct program_space *search_pspace,
|
||||
struct symtab *default_symtab,
|
||||
int default_line,
|
||||
struct linespec_result *canonical)
|
||||
|
|
@ -2398,6 +2411,7 @@ linespec_parser_new (linespec_parser *parser,
|
|||
memset (PARSER_RESULT (parser), 0, sizeof (struct linespec));
|
||||
PARSER_EXPLICIT (parser)->line_offset.sign = LINE_OFFSET_UNKNOWN;
|
||||
linespec_state_constructor (PARSER_STATE (parser), flags, language,
|
||||
search_pspace,
|
||||
default_symtab, default_line, canonical);
|
||||
}
|
||||
|
||||
|
|
@ -2451,7 +2465,7 @@ linespec_lex_to_end (char **stringp)
|
|||
if (stringp == NULL || *stringp == NULL)
|
||||
return;
|
||||
|
||||
linespec_parser_new (&parser, 0, current_language, NULL, 0, NULL);
|
||||
linespec_parser_new (&parser, 0, current_language, NULL, NULL, 0, NULL);
|
||||
cleanup = make_cleanup (linespec_parser_delete, &parser);
|
||||
parser.lexer.saved_arg = *stringp;
|
||||
PARSER_STREAM (&parser) = orig = *stringp;
|
||||
|
|
@ -2530,6 +2544,7 @@ event_location_to_sals (linespec_parser *parser,
|
|||
|
||||
void
|
||||
decode_line_full (const struct event_location *location, int flags,
|
||||
struct program_space *search_pspace,
|
||||
struct symtab *default_symtab,
|
||||
int default_line, struct linespec_result *canonical,
|
||||
const char *select_mode,
|
||||
|
|
@ -2550,7 +2565,8 @@ decode_line_full (const struct event_location *location, int flags,
|
|||
|| select_mode == multiple_symbols_cancel);
|
||||
gdb_assert ((flags & DECODE_LINE_LIST_MODE) == 0);
|
||||
|
||||
linespec_parser_new (&parser, flags, current_language, default_symtab,
|
||||
linespec_parser_new (&parser, flags, current_language,
|
||||
search_pspace, default_symtab,
|
||||
default_line, canonical);
|
||||
cleanups = make_cleanup (linespec_parser_delete, &parser);
|
||||
save_current_program_space ();
|
||||
|
|
@ -2603,6 +2619,7 @@ decode_line_full (const struct event_location *location, int flags,
|
|||
|
||||
struct symtabs_and_lines
|
||||
decode_line_1 (const struct event_location *location, int flags,
|
||||
struct program_space *search_pspace,
|
||||
struct symtab *default_symtab,
|
||||
int default_line)
|
||||
{
|
||||
|
|
@ -2610,7 +2627,8 @@ decode_line_1 (const struct event_location *location, int flags,
|
|||
linespec_parser parser;
|
||||
struct cleanup *cleanups;
|
||||
|
||||
linespec_parser_new (&parser, flags, current_language, default_symtab,
|
||||
linespec_parser_new (&parser, flags, current_language,
|
||||
search_pspace, default_symtab,
|
||||
default_line, NULL);
|
||||
cleanups = make_cleanup (linespec_parser_delete, &parser);
|
||||
save_current_program_space ();
|
||||
|
|
@ -2640,7 +2658,7 @@ decode_line_with_current_source (char *string, int flags)
|
|||
|
||||
location = string_to_event_location (&string, current_language);
|
||||
cleanup = make_cleanup_delete_event_location (location);
|
||||
sals = decode_line_1 (location, flags,
|
||||
sals = decode_line_1 (location, flags, NULL,
|
||||
cursal.symtab, cursal.line);
|
||||
|
||||
if (*string)
|
||||
|
|
@ -2665,11 +2683,11 @@ decode_line_with_last_displayed (char *string, int flags)
|
|||
location = string_to_event_location (&string, current_language);
|
||||
cleanup = make_cleanup_delete_event_location (location);
|
||||
if (last_displayed_sal_is_valid ())
|
||||
sals = decode_line_1 (location, flags,
|
||||
sals = decode_line_1 (location, flags, NULL,
|
||||
get_last_displayed_symtab (),
|
||||
get_last_displayed_line ());
|
||||
else
|
||||
sals = decode_line_1 (location, flags, (struct symtab *) NULL, 0);
|
||||
sals = decode_line_1 (location, flags, NULL, (struct symtab *) NULL, 0);
|
||||
|
||||
if (*string)
|
||||
error (_("Junk at end of line specification: %s"), string);
|
||||
|
|
@ -3117,10 +3135,13 @@ add_symtabs_to_list (struct symtab *symtab, void *d)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* Given a file name, return a VEC of all matching symtabs. */
|
||||
/* Given a file name, return a VEC of all matching symtabs. If
|
||||
SEARCH_PSPACE is not NULL, the search is restricted to just that
|
||||
program space. */
|
||||
|
||||
static VEC (symtab_ptr) *
|
||||
collect_symtabs_from_filename (const char *file)
|
||||
collect_symtabs_from_filename (const char *file,
|
||||
struct program_space *search_pspace)
|
||||
{
|
||||
struct symtab_collector collector;
|
||||
struct cleanup *cleanups;
|
||||
|
|
@ -3132,27 +3153,37 @@ collect_symtabs_from_filename (const char *file)
|
|||
cleanups = make_cleanup_htab_delete (collector.symtab_table);
|
||||
|
||||
/* Find that file's data. */
|
||||
ALL_PSPACES (pspace)
|
||||
{
|
||||
if (pspace->executing_startup)
|
||||
continue;
|
||||
if (search_pspace == NULL)
|
||||
{
|
||||
ALL_PSPACES (pspace)
|
||||
{
|
||||
if (pspace->executing_startup)
|
||||
continue;
|
||||
|
||||
set_current_program_space (pspace);
|
||||
iterate_over_symtabs (file, add_symtabs_to_list, &collector);
|
||||
}
|
||||
set_current_program_space (pspace);
|
||||
iterate_over_symtabs (file, add_symtabs_to_list, &collector);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
set_current_program_space (search_pspace);
|
||||
iterate_over_symtabs (file, add_symtabs_to_list, &collector);
|
||||
}
|
||||
|
||||
do_cleanups (cleanups);
|
||||
return collector.symtabs;
|
||||
}
|
||||
|
||||
/* Return all the symtabs associated to the FILENAME. */
|
||||
/* Return all the symtabs associated to the FILENAME. If SEARCH_PSPACE is
|
||||
not NULL, the search is restricted to just that program space. */
|
||||
|
||||
static VEC (symtab_ptr) *
|
||||
symtabs_from_filename (const char *filename)
|
||||
symtabs_from_filename (const char *filename,
|
||||
struct program_space *search_pspace)
|
||||
{
|
||||
VEC (symtab_ptr) *result;
|
||||
|
||||
result = collect_symtabs_from_filename (filename);
|
||||
result = collect_symtabs_from_filename (filename, search_pspace);
|
||||
|
||||
if (VEC_empty (symtab_ptr, result))
|
||||
{
|
||||
|
|
@ -3189,9 +3220,10 @@ find_function_symbols (struct linespec_state *state,
|
|||
/* Try NAME as an Objective-C selector. */
|
||||
find_imps (name, &symbol_names);
|
||||
if (!VEC_empty (const_char_ptr, symbol_names))
|
||||
add_all_symbol_names_from_pspace (&info, NULL, symbol_names);
|
||||
add_all_symbol_names_from_pspace (&info, state->search_pspace,
|
||||
symbol_names);
|
||||
else
|
||||
add_matching_symbols_to_info (name, &info, NULL);
|
||||
add_matching_symbols_to_info (name, &info, state->search_pspace);
|
||||
|
||||
do_cleanups (cleanup);
|
||||
|
||||
|
|
|
|||
|
|
@ -97,6 +97,7 @@ extern struct cleanup *
|
|||
|
||||
extern struct symtabs_and_lines
|
||||
decode_line_1 (const struct event_location *location, int flags,
|
||||
struct program_space *search_pspace,
|
||||
struct symtab *default_symtab, int default_line);
|
||||
|
||||
/* Parse LOCATION and return results. This is the "full"
|
||||
|
|
@ -106,6 +107,9 @@ extern struct symtabs_and_lines
|
|||
For FLAGS, see decode_line_flags. DECODE_LINE_LIST_MODE is not
|
||||
valid for this function.
|
||||
|
||||
If SEARCH_PSPACE is not NULL, symbol search is restricted to just
|
||||
that program space.
|
||||
|
||||
DEFAULT_SYMTAB and DEFAULT_LINE describe the default location.
|
||||
DEFAULT_SYMTAB can be NULL, in which case the current symtab and
|
||||
line are used.
|
||||
|
|
@ -136,6 +140,7 @@ extern struct symtabs_and_lines
|
|||
filtered out. */
|
||||
|
||||
extern void decode_line_full (const struct event_location *location, int flags,
|
||||
struct program_space *search_pspace,
|
||||
struct symtab *default_symtab, int default_line,
|
||||
struct linespec_result *canonical,
|
||||
const char *select_mode,
|
||||
|
|
|
|||
120
gdb/probe.c
120
gdb/probe.c
|
|
@ -41,18 +41,77 @@ DEF_VEC_O (bound_probe_s);
|
|||
|
||||
|
||||
|
||||
/* A helper for parse_probes that decodes a probe specification in
|
||||
SEARCH_PSPACE. It appends matching SALs to RESULT. */
|
||||
|
||||
static void
|
||||
parse_probes_in_pspace (const struct probe_ops *probe_ops,
|
||||
struct program_space *search_pspace,
|
||||
const char *objfile_namestr,
|
||||
const char *provider,
|
||||
const char *name,
|
||||
struct symtabs_and_lines *result)
|
||||
{
|
||||
struct objfile *objfile;
|
||||
|
||||
ALL_PSPACE_OBJFILES (search_pspace, objfile)
|
||||
{
|
||||
VEC (probe_p) *probes;
|
||||
struct probe *probe;
|
||||
int ix;
|
||||
|
||||
if (!objfile->sf || !objfile->sf->sym_probe_fns)
|
||||
continue;
|
||||
|
||||
if (objfile_namestr
|
||||
&& FILENAME_CMP (objfile_name (objfile), objfile_namestr) != 0
|
||||
&& FILENAME_CMP (lbasename (objfile_name (objfile)),
|
||||
objfile_namestr) != 0)
|
||||
continue;
|
||||
|
||||
probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile);
|
||||
|
||||
for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++)
|
||||
{
|
||||
struct symtab_and_line *sal;
|
||||
|
||||
if (probe_ops != &probe_ops_any && probe->pops != probe_ops)
|
||||
continue;
|
||||
|
||||
if (provider && strcmp (probe->provider, provider) != 0)
|
||||
continue;
|
||||
|
||||
if (strcmp (probe->name, name) != 0)
|
||||
continue;
|
||||
|
||||
++result->nelts;
|
||||
result->sals = XRESIZEVEC (struct symtab_and_line, result->sals,
|
||||
result->nelts);
|
||||
sal = &result->sals[result->nelts - 1];
|
||||
|
||||
init_sal (sal);
|
||||
|
||||
sal->pc = get_probe_address (probe, objfile);
|
||||
sal->explicit_pc = 1;
|
||||
sal->section = find_pc_overlay (sal->pc);
|
||||
sal->pspace = search_pspace;
|
||||
sal->probe = probe;
|
||||
sal->objfile = objfile;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* See definition in probe.h. */
|
||||
|
||||
struct symtabs_and_lines
|
||||
parse_probes (const struct event_location *location,
|
||||
struct program_space *search_pspace,
|
||||
struct linespec_result *canonical)
|
||||
{
|
||||
char *arg_end, *arg;
|
||||
char *objfile_namestr = NULL, *provider = NULL, *name, *p;
|
||||
struct cleanup *cleanup;
|
||||
struct symtabs_and_lines result;
|
||||
struct objfile *objfile;
|
||||
struct program_space *pspace;
|
||||
const struct probe_ops *probe_ops;
|
||||
const char *arg_start, *cs;
|
||||
|
||||
|
|
@ -114,52 +173,19 @@ parse_probes (const struct event_location *location,
|
|||
if (objfile_namestr && *objfile_namestr == '\0')
|
||||
error (_("invalid objfile name"));
|
||||
|
||||
ALL_PSPACES (pspace)
|
||||
ALL_PSPACE_OBJFILES (pspace, objfile)
|
||||
{
|
||||
VEC (probe_p) *probes;
|
||||
struct probe *probe;
|
||||
int ix;
|
||||
if (search_pspace != NULL)
|
||||
{
|
||||
parse_probes_in_pspace (probe_ops, search_pspace, objfile_namestr,
|
||||
provider, name, &result);
|
||||
}
|
||||
else
|
||||
{
|
||||
struct program_space *pspace;
|
||||
|
||||
if (!objfile->sf || !objfile->sf->sym_probe_fns)
|
||||
continue;
|
||||
|
||||
if (objfile_namestr
|
||||
&& FILENAME_CMP (objfile_name (objfile), objfile_namestr) != 0
|
||||
&& FILENAME_CMP (lbasename (objfile_name (objfile)),
|
||||
objfile_namestr) != 0)
|
||||
continue;
|
||||
|
||||
probes = objfile->sf->sym_probe_fns->sym_get_probes (objfile);
|
||||
|
||||
for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++)
|
||||
{
|
||||
struct symtab_and_line *sal;
|
||||
|
||||
if (probe_ops != &probe_ops_any && probe->pops != probe_ops)
|
||||
continue;
|
||||
|
||||
if (provider && strcmp (probe->provider, provider) != 0)
|
||||
continue;
|
||||
|
||||
if (strcmp (probe->name, name) != 0)
|
||||
continue;
|
||||
|
||||
++result.nelts;
|
||||
result.sals = XRESIZEVEC (struct symtab_and_line, result.sals,
|
||||
result.nelts);
|
||||
sal = &result.sals[result.nelts - 1];
|
||||
|
||||
init_sal (sal);
|
||||
|
||||
sal->pc = get_probe_address (probe, objfile);
|
||||
sal->explicit_pc = 1;
|
||||
sal->section = find_pc_overlay (sal->pc);
|
||||
sal->pspace = pspace;
|
||||
sal->probe = probe;
|
||||
sal->objfile = objfile;
|
||||
}
|
||||
}
|
||||
ALL_PSPACES (pspace)
|
||||
parse_probes_in_pspace (probe_ops, pspace, objfile_namestr,
|
||||
provider, name, &result);
|
||||
}
|
||||
|
||||
if (result.nelts == 0)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -228,6 +228,7 @@ struct bound_probe
|
|||
symtabs_and_lines object and updates LOC or throws an error. */
|
||||
|
||||
extern struct symtabs_and_lines parse_probes (const struct event_location *loc,
|
||||
struct program_space *pspace,
|
||||
struct linespec_result *canon);
|
||||
|
||||
/* Helper function to register the proper probe_ops to a newly created probe.
|
||||
|
|
|
|||
|
|
@ -748,7 +748,7 @@ gdbpy_decode_line (PyObject *self, PyObject *args)
|
|||
TRY
|
||||
{
|
||||
if (location != NULL)
|
||||
sals = decode_line_1 (location, 0, 0, 0);
|
||||
sals = decode_line_1 (location, 0, NULL, NULL, 0);
|
||||
else
|
||||
{
|
||||
set_default_source_symtab_and_line ();
|
||||
|
|
|
|||
|
|
@ -1,3 +1,66 @@
|
|||
2016-01-19 Pedro Alves <palves@redhat.com>
|
||||
|
||||
* ax-gdb.c (agent_command_1): Adjust call to decode_line_full.
|
||||
* break-catch-throw.c (re_set_exception_catchpoint): Pass the
|
||||
current program space down to linespec decoding and breakpoint
|
||||
location updating.
|
||||
* breakpoint.c (parse_breakpoint_sals): Adjust calls to
|
||||
decode_line_full.
|
||||
(until_break_command): Adjust calls to decode_line_1.
|
||||
(base_breakpoint_decode_location, bkpt_decode_location): Add
|
||||
'search_pspace' parameter. Pass it along.
|
||||
(bkpt_probe_create_sals_from_location): Adjust calls to
|
||||
parse_probes.
|
||||
(tracepoint_decode_location, tracepoint_probe_decode_location)
|
||||
(strace_marker_decode_location): Add 'search_pspace' parameter.
|
||||
Pass it along.
|
||||
(all_locations_are_pending): Rewrite to take a breakpoint and
|
||||
program space as arguments instead.
|
||||
(hoist_existing_locations): New function.
|
||||
(update_breakpoint_locations): Add 'filter_pspace' parameter. Use
|
||||
hoist_existing_locations instead of always removing all locations,
|
||||
and adjust to all_locations_are_pending change.
|
||||
(location_to_sals): Add 'search_pspace' parameter. Pass it along.
|
||||
Don't disable the breakpoint if there are other locations in
|
||||
another program space.
|
||||
(breakpoint_re_set_default): Adjust to pass down the current
|
||||
program space as filter program space.
|
||||
(decode_location_default): Add 'search_pspace' parameter and pass
|
||||
it along.
|
||||
(prepare_re_set_context): Don't switch program space here.
|
||||
(breakpoint_re_set): Use save_current_space_and_thread instead of
|
||||
save_current_program_space.
|
||||
* breakpoint.h (struct breakpoint_ops) <decode_location>: Add
|
||||
'search_pspace' parameter.
|
||||
(update_breakpoint_locations): Add 'filter_pspace' parameter.
|
||||
* cli/cli-cmds.c (edit_command, list_command): Adjust calls to
|
||||
decode_line_1.
|
||||
* elfread.c (elf_gnu_ifunc_resolver_return_stop): Pass the current
|
||||
program space as filter program space.
|
||||
* linespec.c (struct linespec_state) <search_pspace>: New field.
|
||||
(create_sals_line_offset, convert_explicit_location_to_sals)
|
||||
(parse_linespec): Pass the search program space down.
|
||||
(linespec_state_constructor): Add 'search_pspace' parameter.
|
||||
Store it.
|
||||
(linespec_parser_new): Add 'search_pspace' parameter and pass it
|
||||
along.
|
||||
(linespec_lex_to_end): Adjust.
|
||||
(decode_line_full, decode_line_1): Add 'search_pspace' parameter
|
||||
and pass it along.
|
||||
(decode_line_with_last_displayed): Adjust.
|
||||
(collect_symtabs_from_filename, symtabs_from_filename): New
|
||||
'search_pspace' parameter. Use it.
|
||||
(find_function_symbols): Pass the search program space down.
|
||||
* linespec.h (decode_line_1, decode_line_full): Add
|
||||
'search_pspace' parameter.
|
||||
* probe.c (parse_probes_in_pspace): New function, factored out
|
||||
from ...
|
||||
(parse_probes): ... this. Add 'search_pspace' parameter and use
|
||||
it.
|
||||
* probe.h (parse_probes): Add pspace' parameter.
|
||||
* python/python.c (gdbpy_decode_line): Adjust.
|
||||
* tracepoint.c (scope_info): Adjust.
|
||||
|
||||
2016-01-19 Marcin Kościelnicki <koriakin@0x04.net>
|
||||
|
||||
* gdb.trace/ftrace.exp: Fix expected message on continue.
|
||||
|
|
|
|||
|
|
@ -2720,7 +2720,7 @@ scope_info (char *args, int from_tty)
|
|||
|
||||
location = string_to_event_location (&args, current_language);
|
||||
back_to = make_cleanup_delete_event_location (location);
|
||||
sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE, NULL, 0);
|
||||
sals = decode_line_1 (location, DECODE_LINE_FUNFIRSTLINE, NULL, NULL, 0);
|
||||
if (sals.nelts == 0)
|
||||
{
|
||||
/* Presumably decode_line_1 has already warned. */
|
||||
|
|
|
|||
Loading…
Reference in a new issue