binutils-gdb/gdb/objfiles.h

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/* Definitions for symbol file management in GDB.
Copyright (C) 1992-2017 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
it under the terms of the GNU General Public License as published by
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,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (OBJFILES_H)
#define OBJFILES_H
DWARF: handle non-local references in nested functions GDB's current behavior when dealing with non-local references in the context of nested fuctions is approximative: - code using valops.c:value_of_variable read the first available stack frame that holds the corresponding variable (whereas there can be multiple candidates for this); - code directly relying on read_var_value will instead read non-local variables in frames where they are not even defined. This change adds the necessary context to symbol reads (to get the block they belong to) and to blocks (the static link property, if any) so that GDB can make the proper decisions when dealing with non-local varibale references. gdb/ChangeLog: * ada-lang.c (ada_read_var_value): Add a var_block argument and pass it to default_read_var_value. * block.c (block_static_link): New accessor. * block.h (block_static_link): Declare it. * buildsym.c (finish_block_internal): Add a static_link argument. If there is a static link, associate it to the new block. (finish_block): Add a static link argument and pass it to finish_block_internal. (end_symtab_get_static_block): Update calls to finish_block and to finish_block_internal. (end_symtab_with_blockvector): Update call to finish_block_internal. * buildsym.h: Forward-declare struct dynamic_prop. (struct context_stack): Add a static_link field. (finish_block): Add a static link argument. * c-exp.y: Remove an obsolete comment (evaluation of variables already start from the selected frame, and now they climb *up* the call stack) and propagate the block information to the produced expression. * d-exp.y: Likewise. * f-exp.y: Likewise. * go-exp.y: Likewise. * jv-exp.y: Likewise. * m2-exp.y: Likewise. * p-exp.y: Likewise. * coffread.c (coff_symtab_read): Update calls to finish_block. * dbxread.c (process_one_symbol): Likewise. * xcoffread.c (read_xcoff_symtab): Likewise. * compile/compile-c-symbols.c (convert_one_symbol): Promote the "sym" parameter to struct block_symbol, update its uses and pass its block to calls to read_var_value. (convert_symbol_sym): Update the calls to convert_one_symbol. * compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update call to read_var_value. * dwarf2loc.c (block_op_get_frame_base): New. (dwarf2_block_frame_base_locexpr_funcs): Implement the get_frame_base method. (dwarf2_block_frame_base_loclist_funcs): Likewise. (dwarf2locexpr_baton_eval): Add a frame argument and use it instead of the selected frame in order to evaluate the expression. (dwarf2_evaluate_property): Add a frame argument. Update call to dwarf2_locexpr_baton_eval to provide a frame in available and to handle the absence of address stack. * dwarf2loc.h (dwarf2_evaluate_property): Add a frame argument. * dwarf2read.c (attr_to_dynamic_prop): Add a forward declaration. (read_func_scope): Record any available static link description. Update call to finish_block. (read_lexical_block_scope): Update call to finish_block. * findvar.c (follow_static_link): New. (get_hosting_frame): New. (default_read_var_value): Add a var_block argument. Use get_hosting_frame to handle non-local references. (read_var_value): Add a var_block argument and pass it to the LA_READ_VAR_VALUE method. * gdbtypes.c (resolve_dynamic_range): Update calls to dwarf2_evaluate_property. (resolve_dynamic_type_internal): Likewise. * guile/scm-frame.c (gdbscm_frame_read_var): Update call to read_var_value, passing it the block coming from symbol lookup. * guile/scm-symbol.c (gdbscm_symbol_value): Update call to read_var_value (TODO). * infcmd.c (finish_command_continuation): Update call to read_var_value, passing it the block coming from symbol lookup. * infrun.c (insert_exception_resume_breakpoint): Likewise. * language.h (struct language_defn): Add a var_block argument to the LA_READ_VAR_VALUE method. * objfiles.c (struct static_link_htab_entry): New. (static_link_htab_entry_hash): New. (static_link_htab_entry_eq): New. (objfile_register_static_link): New. (objfile_lookup_static_link): New. (free_objfile): Free the STATIC_LINKS hashed map if needed. * objfiles.h: Include hashtab.h. (struct objfile): Add a static_links field. (objfile_register_static_link): New. (objfile_lookup_static_link): New. * printcmd.c (print_variable_and_value): Update call to read_var_value. * python/py-finishbreakpoint.c (bpfinishpy_init): Likewise. * python/py-frame.c (frapy_read_var): Update call to read_var_value, passing it the block coming from symbol lookup. * python/py-framefilter.c (extract_sym): Add a sym_block parameter and set the pointed value to NULL (TODO). (enumerate_args): Update call to extract_sym. (enumerate_locals): Update calls to extract_sym and to read_var_value. * python/py-symbol.c (sympy_value): Update call to read_var_value (TODO). * stack.c (read_frame_local): Update call to read_var_value. (read_frame_arg): Likewise. (return_command): Likewise. * symtab.h (struct symbol_block_ops): Add a get_frame_base method. (struct symbol): Add a block field. (SYMBOL_BLOCK): New accessor. * valops.c (value_of_variable): Remove frame/block handling and pass the block argument to read_var_value, which does this job now. (value_struct_elt_for_reference): Update calls to read_var_value. (value_of_this): Pass the block found to read_var_value. * value.h (read_var_value): Add a var_block argument. (default_read_var_value): Likewise. gdb/testsuite/ChangeLog: * gdb.base/nested-subp1.exp: New file. * gdb.base/nested-subp1.c: New file. * gdb.base/nested-subp2.exp: New file. * gdb.base/nested-subp2.c: New file. * gdb.base/nested-subp3.exp: New file. * gdb.base/nested-subp3.c: New file.
2015-02-05 17:00:06 +01:00
#include "hashtab.h"
#include "gdb_obstack.h" /* For obstack internals. */
Make symfile_add_flags and objfile->flags strongly typed This makes these flag types be "enum flag" types. The benefit is making use of C++'s stronger typing -- mixing the flags types by mistake errors at compile time. This caught one old bug in symbol_file_add_main_1 already, fixed by this patch as well: @@ -1318,7 +1326,7 @@ symbol_file_add_main_1 (const char *args, int from_tty, int flags) what is frameless. */ reinit_frame_cache (); - if ((flags & SYMFILE_NO_READ) == 0) + if ((add_flags & SYMFILE_NO_READ) == 0) set_initial_language (); } Above, "flags" are objfile flags, not symfile_add_flags. So that was actually checking for "flag & OBJF_PSYMTABS_READ", which has the same value as SYMFILE_NO_READ... I moved the flags definitions to separate files to break circular dependencies. Built with --enable-targets=all and tested on x86-64 Fedora 23. gdb/ChangeLog: 2016-10-26 Pedro Alves <palves@redhat.com> * coffread.c (coff_symfile_read): Use symfile_add_flags. * dbxread.c (dbx_symfile_read): Ditto. * elfread.c (elf_symfile_read): Ditto. * inferior.h: Include symfile-add-flags.h. (struct inferior) <symfile_flags>: Now symfile_add_flags. * machoread.c (macho_add_oso_symfile, macho_symfile_read_all_oso) (macho_symfile_read, mipscoff_symfile_read): Use symfile_add_flags. * objfile-flags.h: New file. * objfiles.c (allocate_objfile): Use objfile_flags. * objfiles.h: Include objfile-flags.h. (struct objfile) <flags>: Now an objfile_flags. (OBJF_REORDERED, OBJF_SHARED, OBJF_READNOW, OBJF_USERLOADED) (OBJF_PSYMTABS_READ, OBJF_MAINLINE, OBJF_NOT_FILENAME): Delete. Converted to an enum-flags in objfile-flags.h. (allocate_objfile): Use objfile_flags. * python/py-objfile.c (objfpy_add_separate_debug_file): Remove unnecessary local. * solib.c (solib_read_symbols, solib_add) (reload_shared_libraries_1): Use symfile_add_flags. * solib.h: Include "symfile-add-flags.h". (solib_read_symbols): Use symfile_add_flags. * symfile-add-flags.h: New file. * symfile-debug.c (debug_sym_read): Use symfile_add_flags. * symfile-mem.c (symbol_file_add_from_memory): Use symfile_add_flags. * symfile.c (read_symbols, syms_from_objfile_1) (syms_from_objfile, finish_new_objfile): Use symfile_add_flags. (symbol_file_add_with_addrs): Use symfile_add_flags and objfile_flags. (symbol_file_add_separate): Use symfile_add_flags. (symbol_file_add_from_bfd, symbol_file_add): Use symfile_add_flags and objfile_flags. (symbol_file_add_main_1): : Use objfile_flags. Fix add_flags vs flags confusion. (symbol_file_command): Use objfile_flags. (add_symbol_file_command): Use symfile_add_flags and objfile_flags. (clear_symtab_users): Use symfile_add_flags. * symfile.h: Include "symfile-add-flags.h" and "objfile-flags.h". (struct sym_fns) <sym_read>: Use symfile_add_flags. (clear_symtab_users): Use symfile_add_flags. (enum symfile_add_flags): Delete, moved to symfile-add-flags.h and converted to enum-flags. (symbol_file_add, symbol_file_add_from_bfd) (symbol_file_add_separate): Use symfile_add_flags. * xcoffread.c (xcoff_initial_scan): Use symfile_add_flags.
2016-10-26 17:47:10 +02:00
#include "objfile-flags.h"
#include "symfile.h" /* For struct psymbol_allocation_list. */
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
#include "progspace.h"
* auto-load.c (_initialize_auto_load): Update. * solib-svr4.c (_initialize_svr4_solib): Update * solib-dsbt.c (_initialize_dsbt_solib): Update. * solib-darwin.c (_initialize_darwin_solib): Update. * registry.h: New file. * python/py-progspace.c (gdbpy_initialize_pspace): Update. * python/py-inferior.c (gdbpy_initialize_inferior): Update. * progspace.h: Include registry.h. Use DECLARE_REGISTRY. (register_program_space_data_with_cleanup) (register_program_space_data, program_space_alloc_data) (clear_program_space_data, set_program_space_data) (program_space_data): Don't declare. * progspace.c: Use DEFINE_REGISTRY. (struct program_space_data, struct program_space_data_registration, struct program_space_data_registry, program_space_data_registry) (register_program_space_data_with_cleanup) (register_program_space_data, program_space_alloc_data) (program_space_free_data, clear_program_space_data) (set_program_space_data, program_space_data): Remove. * objfiles.h: Include registry.h. Use DECLARE_REGISTRY. (struct objfile) <data, num_data>: Replace with REGISTRY_FIELDS. (register_objfile_data_with_cleanup, register_objfile_data) (clear_objfile_data, set_objfile_data, objfile_data): Don't declare. * objfiles.c: Use DEFINE_REGISTRY. (struct objfile_data, struct objfile_data_registration, struct objfile_data_registry, objfile_data_registry) (register_objfile_data_with_cleanup, register_objfile_data) (objfile_alloc_data, objfile_free_data, clear_objfile_data) (set_objfile_data, objfile_data): Remove. (_initialize_objfiles): Update. * jit.c (_initialize_jit): Update. * inflow.c (_initialize_inflow): Update. * inferior.h: Include registry.h. Use DECLARE_REGISTRY. (struct inferior) <data, num_data>: Replace with REGISTRY_FIELDS. (register_inferior_data_with_cleanup, register_inferior_data) (clear_inferior_data, set_inferior_data, inferior_data): Don't declare. * inferior.c: Use DEFINE_REGISTRY. (struct inferior_data, struct inferior_data_registration, struct inferior_data_registry, inferior_data_registry) (register_inferior_data_with_cleanup, register_inferior_data) (inferior_alloc_data, inferior_free_data clear_inferior_data) (set_inferior_data, inferior_data): Remove. * auxv.c (_initialize_auxv): Update. * ada-lang.c (_initialize_ada_language): Update. * breakpoint.c (_initialize_breakpoint): Update. * i386-nat.c (i386_use_watchpoints): Update.
2012-08-22 17:17:21 +02:00
#include "registry.h"
#include "gdb_bfd.h"
struct bcache;
struct htab;
struct objfile_data;
/* This structure maintains information on a per-objfile basis about the
"entry point" of the objfile, and the scope within which the entry point
exists. It is possible that gdb will see more than one objfile that is
executable, each with its own entry point.
For example, for dynamically linked executables in SVR4, the dynamic linker
code is contained within the shared C library, which is actually executable
and is run by the kernel first when an exec is done of a user executable
that is dynamically linked. The dynamic linker within the shared C library
then maps in the various program segments in the user executable and jumps
to the user executable's recorded entry point, as if the call had been made
directly by the kernel.
The traditional gdb method of using this info was to use the
recorded entry point to set the entry-file's lowpc and highpc from
the debugging information, where these values are the starting
address (inclusive) and ending address (exclusive) of the
instruction space in the executable which correspond to the
"startup file", i.e. crt0.o in most cases. This file is assumed to
be a startup file and frames with pc's inside it are treated as
nonexistent. Setting these variables is necessary so that
backtraces do not fly off the bottom of the stack.
NOTE: cagney/2003-09-09: It turns out that this "traditional"
method doesn't work. Corinna writes: ``It turns out that the call
to test for "inside entry file" destroys a meaningful backtrace
under some conditions. E.g. the backtrace tests in the asm-source
testcase are broken for some targets. In this test the functions
are all implemented as part of one file and the testcase is not
necessarily linked with a start file (depending on the target).
What happens is, that the first frame is printed normaly and
following frames are treated as being inside the enttry file then.
This way, only the #0 frame is printed in the backtrace output.''
Ref "frame.c" "NOTE: vinschen/2003-04-01".
Gdb also supports an alternate method to avoid running off the bottom
of the stack.
There are two frames that are "special", the frame for the function
containing the process entry point, since it has no predecessor frame,
and the frame for the function containing the user code entry point
(the main() function), since all the predecessor frames are for the
process startup code. Since we have no guarantee that the linked
in startup modules have any debugging information that gdb can use,
we need to avoid following frame pointers back into frames that might
have been built in the startup code, as we might get hopelessly
confused. However, we almost always have debugging information
available for main().
Index: ChangeLog 2003-03-23 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (DEPRECATED_FRAME_CHAIN): Replace FRAME_CHAIN. (DEPRECATED_FRAME_CHAIN_VALID): Replace FRAME_CHAIN_VALID. * gdbarch.h, gdbarch.c: Regenerate. * valops.c (hand_function_call): Update. * objfiles.h (DEPRECATED_FRAME_CHAIN_VALID): Update. * frame.c (legacy_saved_regs_this_id): Update. (legacy_get_prev_frame, get_prev_frame, legacy_frame_p): Update. * dummy-frame.h: Update. * config/sparc/tm-sparc.h (DEPRECATED_FRAME_CHAIN): Update. * config/pa/tm-hppa.h (DEPRECATED_FRAME_CHAIN_VALID): Update. * config/m68k/tm-vx68.h (DEPRECATED_FRAME_CHAIN): Update. * config/m68k/tm-os68k.h (DEPRECATED_FRAME_CHAIN): Update. * config/m68k/tm-sun3.h: Update. * blockframe.c (inside_main_func, frame_chain_valid): Update. * xstormy16-tdep.c (xstormy16_gdbarch_init): Update. * x86-64-tdep.c (x86_64_init_abi): Update. * vax-tdep.c (vax_gdbarch_init): Update. * v850-tdep.c (v850_gdbarch_init): Update. * sparc-tdep.c (sparc_frame_chain, sparc_gdbarch_init): Update. * sh-tdep.c (sh_gdbarch_init): Update. * s390-tdep.c (s390_gdbarch_init): Update. * rs6000-tdep.c (rs6000_frame_saved_pc): Update. (rs6000_gdbarch_init, rs6000_frame_saved_pc): Update. (frame_get_saved_regs): Update. * ppc-linux-tdep.c (ppc_linux_init_abi): Update. * ns32k-tdep.c (ns32k_gdbarch_init): Update. * mn10300-tdep.c (mn10300_gdbarch_init): Update. * mips-tdep.c (mips_gdbarch_init): Update. * mcore-tdep.c (mcore_gdbarch_init): Update. * m68k-tdep.c (m68k_gdbarch_init): Update. * m68hc11-tdep.c (m68hc11_gdbarch_init): Update. * ia64-tdep.c (ia64_gdbarch_init): Update. * i386-tdep.c (i386_frame_num_args, i386_gdbarch_init): Update. * i386-interix-tdep.c (i386_interix_init_abi): Update. (i386_interix_back_one_frame): Update. * hppa-tdep.c (hppa_gdbarch_init): Update. (hppa_init_extra_frame_info): Update. * h8300-tdep.c (h8300_gdbarch_init): Update. * frv-tdep.c (frv_gdbarch_init): Update. * cris-tdep.c (cris_gdbarch_init): Update. * avr-tdep.c (avr_gdbarch_init): Update. * arm-tdep.c (arm_gdbarch_init): Update. * alpha-tdep.c (alpha_gdbarch_init): Update. Index: doc/ChangeLog 2003-03-23 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Algorithms, Target Architecture Definition): Deprecate FRAME_CHAIN and FRAME_CHAIN_VALID.
2003-03-24 04:54:51 +01:00
These variables are used to save the range of PC values which are
valid within the main() function and within the function containing
the process entry point. If we always consider the frame for
main() as the outermost frame when debugging user code, and the
frame for the process entry point function as the outermost frame
when debugging startup code, then all we have to do is have
DEPRECATED_FRAME_CHAIN_VALID return false whenever a frame's
current PC is within the range specified by these variables. In
essence, we set "ceilings" in the frame chain beyond which we will
not proceed when following the frame chain back up the stack.
A nice side effect is that we can still debug startup code without
running off the end of the frame chain, assuming that we have usable
debugging information in the startup modules, and if we choose to not
use the block at main, or can't find it for some reason, everything
still works as before. And if we have no startup code debugging
information but we do have usable information for main(), backtraces
from user code don't go wandering off into the startup code. */
struct entry_info
{
/* The unrelocated value we should use for this objfile entry point. */
CORE_ADDR entry_point;
/* The index of the section in which the entry point appears. */
int the_bfd_section_index;
/* Set to 1 iff ENTRY_POINT contains a valid value. */
unsigned entry_point_p : 1;
/* Set to 1 iff this object was initialized. */
unsigned initialized : 1;
};
/* Sections in an objfile. The section offsets are stored in the
OBJFILE. */
1999-07-07 22:19:36 +02:00
struct obj_section
{
/* BFD section pointer */
struct bfd_section *the_bfd_section;
/* Objfile this section is part of. */
struct objfile *objfile;
/* True if this "overlay section" is mapped into an "overlay region". */
int ovly_mapped;
};
/* Relocation offset applied to S. */
#define obj_section_offset(s) \
(((s)->objfile->section_offsets)->offsets[gdb_bfd_section_index ((s)->objfile->obfd, (s)->the_bfd_section)])
/* The memory address of section S (vma + offset). */
#define obj_section_addr(s) \
(bfd_get_section_vma ((s)->objfile->obfd, s->the_bfd_section) \
+ obj_section_offset (s))
/* The one-passed-the-end memory address of section S
(vma + size + offset). */
#define obj_section_endaddr(s) \
(bfd_get_section_vma ((s)->objfile->obfd, s->the_bfd_section) \
+ bfd_get_section_size ((s)->the_bfd_section) \
+ obj_section_offset (s))
/* The "objstats" structure provides a place for gdb to record some
interesting information about its internal state at runtime, on a
per objfile basis, such as information about the number of symbols
read, size of string table (if any), etc. */
1999-07-07 22:19:36 +02:00
struct objstats
{
/* Number of partial symbols read. */
int n_psyms;
/* Number of full symbols read. */
int n_syms;
/* Number of ".stabs" read (if applicable). */
int n_stabs;
/* Number of types. */
int n_types;
/* Size of stringtable, (if applicable). */
int sz_strtab;
};
#define OBJSTAT(objfile, expr) (objfile -> stats.expr)
#define OBJSTATS struct objstats stats
2000-05-28 03:12:42 +02:00
extern void print_objfile_statistics (void);
extern void print_symbol_bcache_statistics (void);
/* Number of entries in the minimal symbol hash table. */
#define MINIMAL_SYMBOL_HASH_SIZE 2039
/* Some objfile data is hung off the BFD. This enables sharing of the
data across all objfiles using the BFD. The data is stored in an
instance of this structure, and associated with the BFD using the
registry system. */
struct objfile_per_bfd_storage
{
/* The storage has an obstack of its own. */
struct obstack storage_obstack;
/* Byte cache for file names. */
struct bcache *filename_cache;
/* Byte cache for macros. */
struct bcache *macro_cache;
/* The gdbarch associated with the BFD. Note that this gdbarch is
determined solely from BFD information, without looking at target
information. The gdbarch determined from a running target may
differ from this e.g. with respect to register types and names. */
struct gdbarch *gdbarch;
/* Hash table for mapping symbol names to demangled names. Each
entry in the hash table is actually two consecutive strings,
both null-terminated; the first one is a mangled or linkage
name, and the second is the demangled name or just a zero byte
if the name doesn't demangle. */
struct htab *demangled_names_hash;
/* The per-objfile information about the entry point, the scope (file/func)
containing the entry point, and the scope of the user's main() func. */
struct entry_info ei;
/* The name and language of any "main" found in this objfile. The
name can be NULL, which means that the information was not
recorded. */
const char *name_of_main;
enum language language_of_main;
move minimal symbols to per-bfd Now that minimal symbols are independent of the program space, we can move them to the per-BFD object. This lets us save memory in the multi-inferior case; and, once the symbol readers are updated, time. The other prerequisite for this move is that all the objects referred to by the minimal symbols have a lifetime at least as long as the per-BFD object. I think this is satisfied partially by this patch (moving the copied names there) and partially by earlier patches moving the demangled name hash. This patch contains a bit of logic to avoid creating new minimal symbols if they have already been read for a given BFD. This allows us to avoid trying to update all the symbol readers for this condition. At first glance this may seem like a hack, but some symbol readers mix psym and minsym reading, and would require logic just like this regardless -- and it is simpler and less error-prone to just do the work in a central spot. 2014-02-26 Tom Tromey <tromey@redhat.com> * minsyms.c (lookup_minimal_symbol, iterate_over_minimal_symbols) (lookup_minimal_symbol_text, lookup_minimal_symbol_by_pc_name) (lookup_minimal_symbol_solib_trampoline) (lookup_minimal_symbol_by_pc_section_1) (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Use the per-BFD obstack. Don't allocate a minimal symbol if minsyms have already been read. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Do nothing if minsyms already read. Use the per-BFD obstack. (terminate_minimal_symbol_table): Use the per-BFD obstack. * objfiles.c (allocate_objfile): Call terminate_minimal_symbol_table later. (have_minimal_symbols): Update. * objfiles.h (struct objfile_per_bfd_storage) <msymbols, minimal_symbol_count, msymbol_hash, msymbol_demangled_hash>: Move from struct objfile. <minsyms_read>: New field. (struct objfile) <msymbols, minimal_symbol_count, msymbol_hash, msymbol_demangled_hash>: Move. (ALL_OBJFILE_MSYMBOLS): Update. * symfile.c (read_symbols): Set minsyms_read. (reread_symbols): Update. * symmisc.c (dump_objfile, dump_msymbols): Update.
2013-10-15 19:37:19 +02:00
/* Each file contains a pointer to an array of minimal symbols for all
global symbols that are defined within the file. The array is
terminated by a "null symbol", one that has a NULL pointer for the
name and a zero value for the address. This makes it easy to walk
through the array when passed a pointer to somewhere in the middle
of it. There is also a count of the number of symbols, which does
not include the terminating null symbol. The array itself, as well
as all the data that it points to, should be allocated on the
objfile_obstack for this file. */
struct minimal_symbol *msymbols;
int minimal_symbol_count;
/* The number of minimal symbols read, before any minimal symbol
de-duplication is applied. Note in particular that this has only
a passing relationship with the actual size of the table above;
use minimal_symbol_count if you need the true size. */
int n_minsyms;
move minimal symbols to per-bfd Now that minimal symbols are independent of the program space, we can move them to the per-BFD object. This lets us save memory in the multi-inferior case; and, once the symbol readers are updated, time. The other prerequisite for this move is that all the objects referred to by the minimal symbols have a lifetime at least as long as the per-BFD object. I think this is satisfied partially by this patch (moving the copied names there) and partially by earlier patches moving the demangled name hash. This patch contains a bit of logic to avoid creating new minimal symbols if they have already been read for a given BFD. This allows us to avoid trying to update all the symbol readers for this condition. At first glance this may seem like a hack, but some symbol readers mix psym and minsym reading, and would require logic just like this regardless -- and it is simpler and less error-prone to just do the work in a central spot. 2014-02-26 Tom Tromey <tromey@redhat.com> * minsyms.c (lookup_minimal_symbol, iterate_over_minimal_symbols) (lookup_minimal_symbol_text, lookup_minimal_symbol_by_pc_name) (lookup_minimal_symbol_solib_trampoline) (lookup_minimal_symbol_by_pc_section_1) (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Use the per-BFD obstack. Don't allocate a minimal symbol if minsyms have already been read. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Do nothing if minsyms already read. Use the per-BFD obstack. (terminate_minimal_symbol_table): Use the per-BFD obstack. * objfiles.c (allocate_objfile): Call terminate_minimal_symbol_table later. (have_minimal_symbols): Update. * objfiles.h (struct objfile_per_bfd_storage) <msymbols, minimal_symbol_count, msymbol_hash, msymbol_demangled_hash>: Move from struct objfile. <minsyms_read>: New field. (struct objfile) <msymbols, minimal_symbol_count, msymbol_hash, msymbol_demangled_hash>: Move. (ALL_OBJFILE_MSYMBOLS): Update. * symfile.c (read_symbols): Set minsyms_read. (reread_symbols): Update. * symmisc.c (dump_objfile, dump_msymbols): Update.
2013-10-15 19:37:19 +02:00
/* This is true if minimal symbols have already been read. Symbol
readers can use this to bypass minimal symbol reading. Also, the
minimal symbol table management code in minsyms.c uses this to
suppress new minimal symbols. You might think that MSYMBOLS or
MINIMAL_SYMBOL_COUNT could be used for this, but it is possible
for multiple readers to install minimal symbols into a given
per-BFD. */
unsigned int minsyms_read : 1;
/* This is a hash table used to index the minimal symbols by name. */
struct minimal_symbol *msymbol_hash[MINIMAL_SYMBOL_HASH_SIZE];
/* This hash table is used to index the minimal symbols by their
demangled names. */
struct minimal_symbol *msymbol_demangled_hash[MINIMAL_SYMBOL_HASH_SIZE];
};
/* Master structure for keeping track of each file from which
gdb reads symbols. There are several ways these get allocated: 1.
The main symbol file, symfile_objfile, set by the symbol-file command,
2. Additional symbol files added by the add-symbol-file command,
3. Shared library objfiles, added by ADD_SOLIB, 4. symbol files
for modules that were loaded when GDB attached to a remote system
(see remote-vx.c). */
struct objfile
{
/* All struct objfile's are chained together by their next pointers.
The program space field "objfiles" (frequently referenced via
the macro "object_files") points to the first link in this chain. */
struct objfile *next;
/* The object file's original name as specified by the user,
made absolute, and tilde-expanded. However, it is not canonicalized
(i.e., it has not been passed through gdb_realpath).
This pointer is never NULL. This does not have to be freed; it is
guaranteed to have a lifetime at least as long as the objfile. */
char *original_name;
CORE_ADDR addr_low;
Make symfile_add_flags and objfile->flags strongly typed This makes these flag types be "enum flag" types. The benefit is making use of C++'s stronger typing -- mixing the flags types by mistake errors at compile time. This caught one old bug in symbol_file_add_main_1 already, fixed by this patch as well: @@ -1318,7 +1326,7 @@ symbol_file_add_main_1 (const char *args, int from_tty, int flags) what is frameless. */ reinit_frame_cache (); - if ((flags & SYMFILE_NO_READ) == 0) + if ((add_flags & SYMFILE_NO_READ) == 0) set_initial_language (); } Above, "flags" are objfile flags, not symfile_add_flags. So that was actually checking for "flag & OBJF_PSYMTABS_READ", which has the same value as SYMFILE_NO_READ... I moved the flags definitions to separate files to break circular dependencies. Built with --enable-targets=all and tested on x86-64 Fedora 23. gdb/ChangeLog: 2016-10-26 Pedro Alves <palves@redhat.com> * coffread.c (coff_symfile_read): Use symfile_add_flags. * dbxread.c (dbx_symfile_read): Ditto. * elfread.c (elf_symfile_read): Ditto. * inferior.h: Include symfile-add-flags.h. (struct inferior) <symfile_flags>: Now symfile_add_flags. * machoread.c (macho_add_oso_symfile, macho_symfile_read_all_oso) (macho_symfile_read, mipscoff_symfile_read): Use symfile_add_flags. * objfile-flags.h: New file. * objfiles.c (allocate_objfile): Use objfile_flags. * objfiles.h: Include objfile-flags.h. (struct objfile) <flags>: Now an objfile_flags. (OBJF_REORDERED, OBJF_SHARED, OBJF_READNOW, OBJF_USERLOADED) (OBJF_PSYMTABS_READ, OBJF_MAINLINE, OBJF_NOT_FILENAME): Delete. Converted to an enum-flags in objfile-flags.h. (allocate_objfile): Use objfile_flags. * python/py-objfile.c (objfpy_add_separate_debug_file): Remove unnecessary local. * solib.c (solib_read_symbols, solib_add) (reload_shared_libraries_1): Use symfile_add_flags. * solib.h: Include "symfile-add-flags.h". (solib_read_symbols): Use symfile_add_flags. * symfile-add-flags.h: New file. * symfile-debug.c (debug_sym_read): Use symfile_add_flags. * symfile-mem.c (symbol_file_add_from_memory): Use symfile_add_flags. * symfile.c (read_symbols, syms_from_objfile_1) (syms_from_objfile, finish_new_objfile): Use symfile_add_flags. (symbol_file_add_with_addrs): Use symfile_add_flags and objfile_flags. (symbol_file_add_separate): Use symfile_add_flags. (symbol_file_add_from_bfd, symbol_file_add): Use symfile_add_flags and objfile_flags. (symbol_file_add_main_1): : Use objfile_flags. Fix add_flags vs flags confusion. (symbol_file_command): Use objfile_flags. (add_symbol_file_command): Use symfile_add_flags and objfile_flags. (clear_symtab_users): Use symfile_add_flags. * symfile.h: Include "symfile-add-flags.h" and "objfile-flags.h". (struct sym_fns) <sym_read>: Use symfile_add_flags. (clear_symtab_users): Use symfile_add_flags. (enum symfile_add_flags): Delete, moved to symfile-add-flags.h and converted to enum-flags. (symbol_file_add, symbol_file_add_from_bfd) (symbol_file_add_separate): Use symfile_add_flags. * xcoffread.c (xcoff_initial_scan): Use symfile_add_flags.
2016-10-26 17:47:10 +02:00
/* Some flag bits for this objfile. */
Make symfile_add_flags and objfile->flags strongly typed This makes these flag types be "enum flag" types. The benefit is making use of C++'s stronger typing -- mixing the flags types by mistake errors at compile time. This caught one old bug in symbol_file_add_main_1 already, fixed by this patch as well: @@ -1318,7 +1326,7 @@ symbol_file_add_main_1 (const char *args, int from_tty, int flags) what is frameless. */ reinit_frame_cache (); - if ((flags & SYMFILE_NO_READ) == 0) + if ((add_flags & SYMFILE_NO_READ) == 0) set_initial_language (); } Above, "flags" are objfile flags, not symfile_add_flags. So that was actually checking for "flag & OBJF_PSYMTABS_READ", which has the same value as SYMFILE_NO_READ... I moved the flags definitions to separate files to break circular dependencies. Built with --enable-targets=all and tested on x86-64 Fedora 23. gdb/ChangeLog: 2016-10-26 Pedro Alves <palves@redhat.com> * coffread.c (coff_symfile_read): Use symfile_add_flags. * dbxread.c (dbx_symfile_read): Ditto. * elfread.c (elf_symfile_read): Ditto. * inferior.h: Include symfile-add-flags.h. (struct inferior) <symfile_flags>: Now symfile_add_flags. * machoread.c (macho_add_oso_symfile, macho_symfile_read_all_oso) (macho_symfile_read, mipscoff_symfile_read): Use symfile_add_flags. * objfile-flags.h: New file. * objfiles.c (allocate_objfile): Use objfile_flags. * objfiles.h: Include objfile-flags.h. (struct objfile) <flags>: Now an objfile_flags. (OBJF_REORDERED, OBJF_SHARED, OBJF_READNOW, OBJF_USERLOADED) (OBJF_PSYMTABS_READ, OBJF_MAINLINE, OBJF_NOT_FILENAME): Delete. Converted to an enum-flags in objfile-flags.h. (allocate_objfile): Use objfile_flags. * python/py-objfile.c (objfpy_add_separate_debug_file): Remove unnecessary local. * solib.c (solib_read_symbols, solib_add) (reload_shared_libraries_1): Use symfile_add_flags. * solib.h: Include "symfile-add-flags.h". (solib_read_symbols): Use symfile_add_flags. * symfile-add-flags.h: New file. * symfile-debug.c (debug_sym_read): Use symfile_add_flags. * symfile-mem.c (symbol_file_add_from_memory): Use symfile_add_flags. * symfile.c (read_symbols, syms_from_objfile_1) (syms_from_objfile, finish_new_objfile): Use symfile_add_flags. (symbol_file_add_with_addrs): Use symfile_add_flags and objfile_flags. (symbol_file_add_separate): Use symfile_add_flags. (symbol_file_add_from_bfd, symbol_file_add): Use symfile_add_flags and objfile_flags. (symbol_file_add_main_1): : Use objfile_flags. Fix add_flags vs flags confusion. (symbol_file_command): Use objfile_flags. (add_symbol_file_command): Use symfile_add_flags and objfile_flags. (clear_symtab_users): Use symfile_add_flags. * symfile.h: Include "symfile-add-flags.h" and "objfile-flags.h". (struct sym_fns) <sym_read>: Use symfile_add_flags. (clear_symtab_users): Use symfile_add_flags. (enum symfile_add_flags): Delete, moved to symfile-add-flags.h and converted to enum-flags. (symbol_file_add, symbol_file_add_from_bfd) (symbol_file_add_separate): Use symfile_add_flags. * xcoffread.c (xcoff_initial_scan): Use symfile_add_flags.
2016-10-26 17:47:10 +02:00
objfile_flags flags;
/* The program space associated with this objfile. */
struct program_space *pspace;
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
/* List of compunits.
These are used to do symbol lookups and file/line-number lookups. */
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
struct compunit_symtab *compunit_symtabs;
/* Each objfile points to a linked list of partial symtabs derived from
this file, one partial symtab structure for each compilation unit
(source file). */
struct partial_symtab *psymtabs;
/* Map addresses to the entries of PSYMTABS. It would be more efficient to
have a map per the whole process but ADDRMAP cannot selectively remove
its items during FREE_OBJFILE. This mapping is already present even for
PARTIAL_SYMTABs which still have no corresponding full SYMTABs read. */
struct addrmap *psymtabs_addrmap;
/* List of freed partial symtabs, available for re-use. */
struct partial_symtab *free_psymtabs;
/* The object file's BFD. Can be null if the objfile contains only
minimal symbols, e.g. the run time common symbols for SunOS4. */
bfd *obfd;
/* The per-BFD data. Note that this is treated specially if OBFD
is NULL. */
struct objfile_per_bfd_storage *per_bfd;
/* The modification timestamp of the object file, as of the last time
we read its symbols. */
long mtime;
/* Obstack to hold objects that should be freed when we load a new symbol
table from this object file. */
struct obstack objfile_obstack;
/* A byte cache where we can stash arbitrary "chunks" of bytes that
will not change. */
struct psymbol_bcache *psymbol_cache; /* Byte cache for partial syms. */
/* Vectors of all partial symbols read in from file. The actual data
is stored in the objfile_obstack. */
struct psymbol_allocation_list global_psymbols;
struct psymbol_allocation_list static_psymbols;
/* Structure which keeps track of functions that manipulate objfile's
of the same type as this objfile. I.e. the function to read partial
symbols for example. Note that this structure is in statically
allocated memory, and is shared by all objfiles that use the
object module reader of this type. */
const struct sym_fns *sf;
/* Per objfile data-pointers required by other GDB modules. */
REGISTRY_FIELDS;
/* Set of relocation offsets to apply to each section.
The table is indexed by the_bfd_section->index, thus it is generally
as large as the number of sections in the binary.
The table is stored on the objfile_obstack.
These offsets indicate that all symbols (including partial and
minimal symbols) which have been read have been relocated by this
much. Symbols which are yet to be read need to be relocated by it. */
struct section_offsets *section_offsets;
int num_sections;
/* Indexes in the section_offsets array. These are initialized by the
*_symfile_offsets() family of functions (som_symfile_offsets,
xcoff_symfile_offsets, default_symfile_offsets). In theory they
should correspond to the section indexes used by bfd for the
current objfile. The exception to this for the time being is the
SOM version. */
int sect_index_text;
int sect_index_data;
int sect_index_bss;
int sect_index_rodata;
/* These pointers are used to locate the section table, which
among other things, is used to map pc addresses into sections.
SECTIONS points to the first entry in the table, and
SECTIONS_END points to the first location past the last entry
in the table. The table is stored on the objfile_obstack. The
sections are indexed by the BFD section index; but the
structure data is only valid for certain sections
(e.g. non-empty, SEC_ALLOC). */
struct obj_section *sections, *sections_end;
/* GDB allows to have debug symbols in separate object files. This is
used by .gnu_debuglink, ELF build id note and Mach-O OSO.
Although this is a tree structure, GDB only support one level
(ie a separate debug for a separate debug is not supported). Note that
separate debug object are in the main chain and therefore will be
visited by ALL_OBJFILES & co iterators. Separate debug objfile always
has a non-nul separate_debug_objfile_backlink. */
/* Link to the first separate debug object, if any. */
struct objfile *separate_debug_objfile;
gdb/ChangeLog: 2003-01-23 Alexander Larsson <alexl@redhat.com> Jim Blandy <jimb@redhat.com> Add support for executables whose debug info has been separated out into a separate file, leaving only a link behind. * objfiles.h (struct objfile): New fields: separate_debug_objfile and separate_debug_objfile_backlink. (put_objfile_before): New declaration. * symfile.c: #include "filenames.h". (symbol_file_add_with_addrs_or_offsets): If this objfile has its debug info in a separate file, read that, too. Save the addrs argument, so we can use it again to read the separated debug info; syms_from_objfile modifies the table we pass it. (reread_symbols): After re-reading an objfile, call reread_separate_symbols to refresh its separate debug info objfile, if it has one. (reread_separate_symbols, find_separate_debug_file, get_debug_link_info, separate_debug_file_exists): New functions. (debug_file_directory): New global var. (_initialize_symfile): Initialize debug_file_directory, and provide the new `set debug-file-directory' command to let the user change it. * objfiles.c (free_objfile): If this objfile has its debug info in a separate objfile, free that one too. If this is itself a separate debug info objfile, clear our parent's backlink. (put_objfile_before): New function. * utils.c (gnu_debuglink_crc32): New function. * defs.h (gnu_debuglink_crc32): New declaration. * Makefile.in (symfile.o): Note dependency on "filenames.h". * configure.in: Handle --with-separate-debug-dir config option. * acinclude.m4 (AC_DEFINE_DIR): New macro. * acconfig.h (DEBUGDIR): New macro. * configure, aclocal.m4, config.in: Regenerated. gdb/doc/ChangeLog: 2003-01-23 Jim Blandy <jimb@redhat.com> * gdb.texinfo (Separate Debug Files): New section.
2003-01-24 00:03:32 +01:00
/* If this is a separate debug object, this is used as a link to the
actual executable objfile. */
struct objfile *separate_debug_objfile_backlink;
/* If this is a separate debug object, this is a link to the next one
for the same executable objfile. */
2003-09-11 David Carlton <carlton@kealia.com> * gdbtypes.h: Add TYPE_CODE_NAMESPACE. * gdbtypes.c (init_type): Handle TYPE_CODE_NAMESPACE. (recursive_dump_type): Ditto. * printcmd.c (print_formatted): Ditto. * typeprint.c (print_type_scalar): Ditto. * c-typeprint.c (c_type_print_varspec_prefix): Ditto. (c_type_print_varspec_suffix, c_type_print_base): Ditto. * cp-support.h: Declare cp_check_possible_namespace_symbols, maint_cplus_cmd_list. * cp-support.c: Make maint_cplus_cmd_list extern. * cp-namespace.c: Include objfiles.h, gdbtypes.h, dictionary.h, command.h. (lookup_symbol_file): Look in possible namespace blocks when appropriate. (initialize_namespace_symtab): New. (get_possible_namespace_block, free_namespace_block) (check_possible_namespace_symbols) (check_possible_namespace_symbols_loop) (check_one_possible_namespace_symbol) (lookup_possible_namespace_symbol, maintenance_cplus_namespace) (_initialize_cp_namespace): Ditto. * block.h: Declare allocate_block. * block.c (allocate_block): New. * jv-lang.c (get_java_class_symtab): Allocate blocks via allocate_block. * symfile.h: Update declaration of add_psymbol_to_list. * symfile.c (add_psymbol_to_list): Return the partial symbol in question. * dwarf2read.c (dwarf2_build_psymtabs_hard): Add argument to scan_partial_symbols_call. (scan_partial_symbols): Add NAMESPACE argument; update calls to helper functions. (add_partial_symbol): If necessary, scan mangled names for names of namespaces. (add_partial_namespace): Add NAMESPACE argument; generate partial symbols associated to namespaces. (add_partial_enumeration): Add NAMESPACE argument. (new_symbol): Allow namespace syms. (read_namespace): Generate namespace syms. * objfiles.h: Add opaque declaration of struct symtab. (struct objfile): Add cp_namespace_symtab member. * objfiles.c (allocate_objfile): Set objfile->cp_namespace_symtab. * Makefile.in (cp-namespace.o): Depend on objfiles_h, gdbtypes_h, dictionary_h, command_h. 2003-09-11 David Carlton <carlton@kealia.com> * gdb.c++/namespace.exp: Add tests for namespace types. * gdb.c++/maint.exp (test_help): Test 'help maint cp namespace'. (test_namespace): New.
2003-09-11 21:49:20 +02:00
struct objfile *separate_debug_objfile_link;
/* Place to stash various statistics about this objfile. */
OBJSTATS;
/* A linked list of symbols created when reading template types or
function templates. These symbols are not stored in any symbol
table, so we have to keep them here to relocate them
properly. */
struct symbol *template_symbols;
DWARF: handle non-local references in nested functions GDB's current behavior when dealing with non-local references in the context of nested fuctions is approximative: - code using valops.c:value_of_variable read the first available stack frame that holds the corresponding variable (whereas there can be multiple candidates for this); - code directly relying on read_var_value will instead read non-local variables in frames where they are not even defined. This change adds the necessary context to symbol reads (to get the block they belong to) and to blocks (the static link property, if any) so that GDB can make the proper decisions when dealing with non-local varibale references. gdb/ChangeLog: * ada-lang.c (ada_read_var_value): Add a var_block argument and pass it to default_read_var_value. * block.c (block_static_link): New accessor. * block.h (block_static_link): Declare it. * buildsym.c (finish_block_internal): Add a static_link argument. If there is a static link, associate it to the new block. (finish_block): Add a static link argument and pass it to finish_block_internal. (end_symtab_get_static_block): Update calls to finish_block and to finish_block_internal. (end_symtab_with_blockvector): Update call to finish_block_internal. * buildsym.h: Forward-declare struct dynamic_prop. (struct context_stack): Add a static_link field. (finish_block): Add a static link argument. * c-exp.y: Remove an obsolete comment (evaluation of variables already start from the selected frame, and now they climb *up* the call stack) and propagate the block information to the produced expression. * d-exp.y: Likewise. * f-exp.y: Likewise. * go-exp.y: Likewise. * jv-exp.y: Likewise. * m2-exp.y: Likewise. * p-exp.y: Likewise. * coffread.c (coff_symtab_read): Update calls to finish_block. * dbxread.c (process_one_symbol): Likewise. * xcoffread.c (read_xcoff_symtab): Likewise. * compile/compile-c-symbols.c (convert_one_symbol): Promote the "sym" parameter to struct block_symbol, update its uses and pass its block to calls to read_var_value. (convert_symbol_sym): Update the calls to convert_one_symbol. * compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update call to read_var_value. * dwarf2loc.c (block_op_get_frame_base): New. (dwarf2_block_frame_base_locexpr_funcs): Implement the get_frame_base method. (dwarf2_block_frame_base_loclist_funcs): Likewise. (dwarf2locexpr_baton_eval): Add a frame argument and use it instead of the selected frame in order to evaluate the expression. (dwarf2_evaluate_property): Add a frame argument. Update call to dwarf2_locexpr_baton_eval to provide a frame in available and to handle the absence of address stack. * dwarf2loc.h (dwarf2_evaluate_property): Add a frame argument. * dwarf2read.c (attr_to_dynamic_prop): Add a forward declaration. (read_func_scope): Record any available static link description. Update call to finish_block. (read_lexical_block_scope): Update call to finish_block. * findvar.c (follow_static_link): New. (get_hosting_frame): New. (default_read_var_value): Add a var_block argument. Use get_hosting_frame to handle non-local references. (read_var_value): Add a var_block argument and pass it to the LA_READ_VAR_VALUE method. * gdbtypes.c (resolve_dynamic_range): Update calls to dwarf2_evaluate_property. (resolve_dynamic_type_internal): Likewise. * guile/scm-frame.c (gdbscm_frame_read_var): Update call to read_var_value, passing it the block coming from symbol lookup. * guile/scm-symbol.c (gdbscm_symbol_value): Update call to read_var_value (TODO). * infcmd.c (finish_command_continuation): Update call to read_var_value, passing it the block coming from symbol lookup. * infrun.c (insert_exception_resume_breakpoint): Likewise. * language.h (struct language_defn): Add a var_block argument to the LA_READ_VAR_VALUE method. * objfiles.c (struct static_link_htab_entry): New. (static_link_htab_entry_hash): New. (static_link_htab_entry_eq): New. (objfile_register_static_link): New. (objfile_lookup_static_link): New. (free_objfile): Free the STATIC_LINKS hashed map if needed. * objfiles.h: Include hashtab.h. (struct objfile): Add a static_links field. (objfile_register_static_link): New. (objfile_lookup_static_link): New. * printcmd.c (print_variable_and_value): Update call to read_var_value. * python/py-finishbreakpoint.c (bpfinishpy_init): Likewise. * python/py-frame.c (frapy_read_var): Update call to read_var_value, passing it the block coming from symbol lookup. * python/py-framefilter.c (extract_sym): Add a sym_block parameter and set the pointed value to NULL (TODO). (enumerate_args): Update call to extract_sym. (enumerate_locals): Update calls to extract_sym and to read_var_value. * python/py-symbol.c (sympy_value): Update call to read_var_value (TODO). * stack.c (read_frame_local): Update call to read_var_value. (read_frame_arg): Likewise. (return_command): Likewise. * symtab.h (struct symbol_block_ops): Add a get_frame_base method. (struct symbol): Add a block field. (SYMBOL_BLOCK): New accessor. * valops.c (value_of_variable): Remove frame/block handling and pass the block argument to read_var_value, which does this job now. (value_struct_elt_for_reference): Update calls to read_var_value. (value_of_this): Pass the block found to read_var_value. * value.h (read_var_value): Add a var_block argument. (default_read_var_value): Likewise. gdb/testsuite/ChangeLog: * gdb.base/nested-subp1.exp: New file. * gdb.base/nested-subp1.c: New file. * gdb.base/nested-subp2.exp: New file. * gdb.base/nested-subp2.c: New file. * gdb.base/nested-subp3.exp: New file. * gdb.base/nested-subp3.c: New file.
2015-02-05 17:00:06 +01:00
/* Associate a static link (struct dynamic_prop *) to all blocks (struct
block *) that have one.
In the context of nested functions (available in Pascal, Ada and GNU C,
for instance), a static link (as in DWARF's DW_AT_static_link attribute)
for a function is a way to get the frame corresponding to the enclosing
function.
Very few blocks have a static link, so it's more memory efficient to
store these here rather than in struct block. Static links must be
allocated on the objfile's obstack. */
htab_t static_links;
};
/* Declarations for functions defined in objfiles.c */
Make symfile_add_flags and objfile->flags strongly typed This makes these flag types be "enum flag" types. The benefit is making use of C++'s stronger typing -- mixing the flags types by mistake errors at compile time. This caught one old bug in symbol_file_add_main_1 already, fixed by this patch as well: @@ -1318,7 +1326,7 @@ symbol_file_add_main_1 (const char *args, int from_tty, int flags) what is frameless. */ reinit_frame_cache (); - if ((flags & SYMFILE_NO_READ) == 0) + if ((add_flags & SYMFILE_NO_READ) == 0) set_initial_language (); } Above, "flags" are objfile flags, not symfile_add_flags. So that was actually checking for "flag & OBJF_PSYMTABS_READ", which has the same value as SYMFILE_NO_READ... I moved the flags definitions to separate files to break circular dependencies. Built with --enable-targets=all and tested on x86-64 Fedora 23. gdb/ChangeLog: 2016-10-26 Pedro Alves <palves@redhat.com> * coffread.c (coff_symfile_read): Use symfile_add_flags. * dbxread.c (dbx_symfile_read): Ditto. * elfread.c (elf_symfile_read): Ditto. * inferior.h: Include symfile-add-flags.h. (struct inferior) <symfile_flags>: Now symfile_add_flags. * machoread.c (macho_add_oso_symfile, macho_symfile_read_all_oso) (macho_symfile_read, mipscoff_symfile_read): Use symfile_add_flags. * objfile-flags.h: New file. * objfiles.c (allocate_objfile): Use objfile_flags. * objfiles.h: Include objfile-flags.h. (struct objfile) <flags>: Now an objfile_flags. (OBJF_REORDERED, OBJF_SHARED, OBJF_READNOW, OBJF_USERLOADED) (OBJF_PSYMTABS_READ, OBJF_MAINLINE, OBJF_NOT_FILENAME): Delete. Converted to an enum-flags in objfile-flags.h. (allocate_objfile): Use objfile_flags. * python/py-objfile.c (objfpy_add_separate_debug_file): Remove unnecessary local. * solib.c (solib_read_symbols, solib_add) (reload_shared_libraries_1): Use symfile_add_flags. * solib.h: Include "symfile-add-flags.h". (solib_read_symbols): Use symfile_add_flags. * symfile-add-flags.h: New file. * symfile-debug.c (debug_sym_read): Use symfile_add_flags. * symfile-mem.c (symbol_file_add_from_memory): Use symfile_add_flags. * symfile.c (read_symbols, syms_from_objfile_1) (syms_from_objfile, finish_new_objfile): Use symfile_add_flags. (symbol_file_add_with_addrs): Use symfile_add_flags and objfile_flags. (symbol_file_add_separate): Use symfile_add_flags. (symbol_file_add_from_bfd, symbol_file_add): Use symfile_add_flags and objfile_flags. (symbol_file_add_main_1): : Use objfile_flags. Fix add_flags vs flags confusion. (symbol_file_command): Use objfile_flags. (add_symbol_file_command): Use symfile_add_flags and objfile_flags. (clear_symtab_users): Use symfile_add_flags. * symfile.h: Include "symfile-add-flags.h" and "objfile-flags.h". (struct sym_fns) <sym_read>: Use symfile_add_flags. (clear_symtab_users): Use symfile_add_flags. (enum symfile_add_flags): Delete, moved to symfile-add-flags.h and converted to enum-flags. (symbol_file_add, symbol_file_add_from_bfd) (symbol_file_add_separate): Use symfile_add_flags. * xcoffread.c (xcoff_initial_scan): Use symfile_add_flags.
2016-10-26 17:47:10 +02:00
extern struct objfile *allocate_objfile (bfd *, const char *name,
objfile_flags);
extern struct gdbarch *get_objfile_arch (const struct objfile *);
* objfiles.h (struct objfile): New GDBARCH member. (get_objfile_arch): Add prototype. * objfiles.c: Include "arch-utils.h". (allocate_objfile): Look up gdbarch associated with bfd. (get_objfile_arch): New function. * Makefile (objfiles.o): Update dependencies. * dwarf2-frame.c (decode_frame_entry_1): Replace current_gdbarch by objfile arch. * dwarf2loc.c (dwarf_expr_read_reg): Replace current_gdbarch by frame arch. (locexpr_describe_location): Replace current_gdbarch by objfile arch. * dwarf2read.c (die_type): Replace current_gdbarch by objfile arch. (dwarf2_add_field): Likewise. (read_tag_pointer_type): Likewise. (read_base_type): Likewise. (new_symbol): Likewise. * coffread.c (decode_type): Add OBJFILE argument. Update callers. (decode_base_type, decode_function_type): Likewise. (coff_read_struct_type, coff_read_enum_type): Likewise. (coff_symtab_read): Replace current_gdbarch by objfile arch. (decode_base_type): Likewise. (coff_read_enum_type): Likewise. (coff_read_struct_type): Replace current_objfile by OBJFILE argument. (coff_read_enum_type): Likewise. * dbxread.c (read_dbx_symtab): Replace current_gdbarch by objfile arch. (end_psymtab): Likewise. (process_one_symbol): Likewise. * mdebugread.c (parse_symbol): Replace current_gdbarch by objfile arch. (parse_procedure): Likewise. (parse_partial_symbols): Likewise. * somread.c (som_symtab_read): Replace current_gdbarch by objfile arch. * stabsread.c (define_symbol): Replace current_gdbarch by objfile arch. Replace static pcc_promotion_type and pcc_unsigned_promotion_type by built-in types. (read_range_type): Replace current_gdbarch by objfile arch. Replace static range_index_type by built-in type. (read_one_struct_field): Replace current_gdbarch by objfile arch. (read_enum_type): Likewise. * xcoffread.c (read_xcoff_symtab): Replace current_gdbarch by objfile arch.
2008-03-26 15:53:28 +01:00
extern int entry_point_address_query (CORE_ADDR *entry_p);
extern CORE_ADDR entry_point_address (void);
extern void build_objfile_section_table (struct objfile *);
extern struct objfile *objfile_separate_debug_iterate (const struct objfile *,
const struct objfile *);
gdb/ChangeLog: 2003-01-23 Alexander Larsson <alexl@redhat.com> Jim Blandy <jimb@redhat.com> Add support for executables whose debug info has been separated out into a separate file, leaving only a link behind. * objfiles.h (struct objfile): New fields: separate_debug_objfile and separate_debug_objfile_backlink. (put_objfile_before): New declaration. * symfile.c: #include "filenames.h". (symbol_file_add_with_addrs_or_offsets): If this objfile has its debug info in a separate file, read that, too. Save the addrs argument, so we can use it again to read the separated debug info; syms_from_objfile modifies the table we pass it. (reread_symbols): After re-reading an objfile, call reread_separate_symbols to refresh its separate debug info objfile, if it has one. (reread_separate_symbols, find_separate_debug_file, get_debug_link_info, separate_debug_file_exists): New functions. (debug_file_directory): New global var. (_initialize_symfile): Initialize debug_file_directory, and provide the new `set debug-file-directory' command to let the user change it. * objfiles.c (free_objfile): If this objfile has its debug info in a separate objfile, free that one too. If this is itself a separate debug info objfile, clear our parent's backlink. (put_objfile_before): New function. * utils.c (gnu_debuglink_crc32): New function. * defs.h (gnu_debuglink_crc32): New declaration. * Makefile.in (symfile.o): Note dependency on "filenames.h". * configure.in: Handle --with-separate-debug-dir config option. * acinclude.m4 (AC_DEFINE_DIR): New macro. * acconfig.h (DEBUGDIR): New macro. * configure, aclocal.m4, config.in: Regenerated. gdb/doc/ChangeLog: 2003-01-23 Jim Blandy <jimb@redhat.com> * gdb.texinfo (Separate Debug Files): New section.
2003-01-24 00:03:32 +01:00
extern void put_objfile_before (struct objfile *, struct objfile *);
extern void add_separate_debug_objfile (struct objfile *, struct objfile *);
2000-05-28 03:12:42 +02:00
extern void unlink_objfile (struct objfile *);
2000-05-28 03:12:42 +02:00
extern void free_objfile (struct objfile *);
extern void free_objfile_separate_debug (struct objfile *);
2000-05-22 11:02:23 +02:00
extern struct cleanup *make_cleanup_free_objfile (struct objfile *);
2000-05-28 03:12:42 +02:00
extern void free_all_objfiles (void);
extern void objfile_relocate (struct objfile *, const struct section_offsets *);
extern void objfile_rebase (struct objfile *, CORE_ADDR);
extern int objfile_has_partial_symbols (struct objfile *objfile);
extern int objfile_has_full_symbols (struct objfile *objfile);
extern int objfile_has_symbols (struct objfile *objfile);
2000-05-28 03:12:42 +02:00
extern int have_partial_symbols (void);
2000-05-28 03:12:42 +02:00
extern int have_full_symbols (void);
extern void objfile_set_sym_fns (struct objfile *objfile,
const struct sym_fns *sf);
extern void objfiles_changed (void);
extern int is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile);
"$ gdb PROGRAM" vs "(gdb) file PROGRAM" difference; warn on failure to remove breakpoint. Turns out there's a difference between loading the program with "gdb PROGRAM", vs loading it with "(gdb) file PROGRAM". The latter results in the objfile ending up with OBJF_USERLOADED set, while not with the former. (That difference seems bogus, but still that's not the point of this patch. We can revisit that afterwards.) The new code that suppresses breakpoint removal errors for add-symbol-file objects ends up being too greedy: /* In some cases, we might not be able to remove a breakpoint in a shared library that has already been removed, but we have not yet processed the shlib unload event. Similarly for an unloaded add-symbol-file object - the user might not yet have had the chance to remove-symbol-file it. shlib_disabled will be set if the library/object has already been removed, but the breakpoint hasn't been uninserted yet, e.g., after "nosharedlibrary" or "remove-symbol-file" with breakpoints always-inserted mode. */ if (val && (bl->loc_type == bp_loc_software_breakpoint && (bl->shlib_disabled || solib_name_from_address (bl->pspace, bl->address) || userloaded_objfile_contains_address_p (bl->pspace, bl->address)))) val = 0; as it turns out that OBJF_USERLOADED can be set for objfiles loaded by some other means not add-symbol-file. In this case, symbol-file (or "file", which is really just "exec-file"+"symbol-file"). Recall that add-symbol-file is documented as: (gdb) help add-symbol-file Load symbols from FILE, assuming FILE has been dynamically loaded. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ And it's the "dynamically loaded" aspect that the breakpoint.c code cares about. So make add-symbol-file set OBJF_SHARED on its objfiles too, and tweak the breakpoint.c code to look for OBJF_SHARED instead of OBJF_USERLOADED. This restores back the missing breakpoint removal warning when we let sss-bp-on-user-bp-2.exp run on native GNU/Linux (https://sourceware.org/ml/gdb-patches/2014-06/msg00335.html): (gdb) PASS: gdb.base/sss-bp-on-user-bp-2.exp: define stepi_del_break stepi_del_break warning: Error removing breakpoint 3 (gdb) FAIL: gdb.base/sss-bp-on-user-bp-2.exp: stepi_del_break I say "restores" because this was GDB's behavior in 7.7 and earlier. And, likewise, "file" with no arguments only started turning breakpoints set in the main executable to "<pending>" with the remote-symbol-file patch (63644780). The old behavior is now restored, and we break-unload-file.exp test now exercizes both "gdb; file PROGRAM" and "gdb PROGRAM". gdb/ 2014-06-16 Pedro Alves <palves@redhat.com> * breakpoint.c (insert_bp_location, remove_breakpoint_1): Adjust. (disable_breakpoints_in_freed_objfile): Skip objfiles that don't have OBJF_SHARED set. * objfiles.c (userloaded_objfile_contains_address_p): Rename to... (shared_objfile_contains_address_p): ... this. Check OBJF_SHARED instead of OBJF_USERLOADED. * objfiles.h (OBJF_SHARED): Update comment. (userloaded_objfile_contains_address_p): Rename to ... (shared_objfile_contains_address_p): ... this, and update comments. * symfile.c (add_symbol_file_command): Also set OBJF_SHARED in the new objfile. (remove_symbol_file_command): Skip objfiles that don't have OBJF_SHARED set. gdb/testsuite/ 2014-06-16 Pedro Alves <palves@redhat.com> * gdb.base/break-main-file-remove-fail.c: New file. * gdb.base/break-main-file-remove-fail.exp: New file. * gdb.base/break-unload-file.exp: Use build_executable instead of prepare_for_testing. (test_break): New parameter "initial_load". Handle it. (top level): Add initial_load cmdline/file axis.
2014-06-16 16:38:13 +02:00
/* Return true if ADDRESS maps into one of the sections of a
OBJF_SHARED objfile of PSPACE and false otherwise. */
Stale breakpoint instructions, spurious SIGTRAPS. Without the code portion of the patch, we get these failures: FAIL: gdb.base/break-unload-file.exp: always-inserted on: break: continue FAIL: gdb.base/break-unload-file.exp: always-inserted on: hbreak: continue FAIL: gdb.base/sym-file.exp: stale bkpts: continue to breakpoint: end here They all looks like random SIGTRAPs: continue Continuing. Program received signal SIGTRAP, Trace/breakpoint trap. 0x0000000000400541 in foo () at ../../../src/gdb/testsuite/gdb.base/break-unload-file.c:21 21 } (gdb) FAIL: gdb.base/break-unload-file.exp: always-inserted on: break: continue (This is a regression caused by the remove-symbol-file command series.) break-unload-file.exp is about having breakpoints inserted, and then doing "file". I caught this while writing a test that does "file PROGRAM", while PROGRAM was already loaded, which internally does "file" first, because I wanted to force a breakpoint_re_set, but the test is more explicit in case GDB ever optimizes out that re-set. The problem is that unloading the file with "file" ends up in disable_breakpoints_in_freed_objfile, which marks all breakpoint locations of the objfile as both shlib_disabled, _and_ clears the inserted flag, without actually removing the breakpoints from the inferior. Now, usually, in all-stop, breakpoints will already be removed from the inferior before the user can issue the "file" command, but, with non-stop, or breakpoints always-inserted on mode, breakpoints stay inserted even while the user has the prompt. In the latter case, then, if we let the program continue, and it executes the address where we had previously set the breakpoint, it'll actually execute the breakpoint instruction that we left behind... Now, one issue is that the intent of disable_breakpoints_in_freed_objfile is really to handle the unloading of OBJF_USERLOADED objfiles. These are objfiles that were added with add-symbol-file and that are removed with remove-symbol-file. "add-symbol-file"'s docs in the manual clearly say these commands are used to let GDB know about dynamically loaded code: You would use this command when @var{filename} has been dynamically loaded (by some other means) into the program that is running. Similarly, the online help says: (gdb) help add-symbol-file Load symbols from FILE, assuming FILE has been dynamically loaded. So it makes sense to, like when shared libraries are unloaded through the generic solib machinery, mark the breakpoint locations as shlib_disabled. But, the "file" command is not about dynamically loaded code, it's about the main program. So the patch makes disable_breakpoints_in_freed_objfile skip all objfiles but OBJF_USERLOADED ones, thus skipping the main objfile. Then, the reason that disable_breakpoints_in_freed_objfile was clearing the inserted flag isn't clear, but likely to avoid breakpoint removal errors, assuming remove-symbol-file was called after the dynamic object was already unmapped from the inferior. In that case, it'd okay to simply clear the inserted flag, but not so if the user for example does remove-symbol-file to remove the library because he made a mistake in the library's address, and wants to re-do add-symbol-file with the correct address. To address all that, I propose an alternative implementation, that handles both cases. The patch includes changes to sym-file.exp to cover them. This implementation leaves the inserted flag alone, and handles breakpoint insertion/removal failure gracefully when the locations are in OBJF_USERLOADED objfiles, just like we handle insertion/removal failure gracefully for locations in shared libraries. To try to make sure we aren't patching back stale shadow memory contents into the inferior, in case the program mapped a different library at the same address where we had the breakpoint, without the user having had a chance of remove-symbol-file'ing before, this adds a new memory_validate_breakpoint function that checks if the breakpoint instruction is still in memory. ppc_linux_memory_remove_breakpoint does this unconditionally for all memory breakpoints, and questions whether memory_remove_breakpoint should be changed to do this for all breakpoints. Possibly yes, though I'm not certain, hence this baby-steps patch. Tested on x86_64 Fedora 17, native and gdbserver. gdb/ 2014-04-23 Pedro Alves <palves@redhat.com> * breakpoint.c (insert_bp_location): Tolerate errors if the breakpoint is set in a user-loaded objfile. (remove_breakpoint_1): Likewise. Also tolerate errors if the location is marked shlib_disabled. If the breakpoint is set in a user-loaded objfile is a GDB-side memory breakpoint, validate it before uninsertion. (disable_breakpoints_in_freed_objfile): Skip non-OBJF_USERLOADED objfiles. Don't clear the location's inserted flag. * mem-break.c (memory_validate_breakpoint): New function. * objfiles.c (userloaded_objfile_contains_address_p): New function. * objfiles.h (userloaded_objfile_contains_address_p): Declare. * target.h (memory_validate_breakpoint): New declaration. gdb/testsuite/ 2014-04-23 Pedro Alves <palves@redhat.com> * gdb.base/break-unload-file.c: New file. * gdb.base/break-unload-file.exp: New file. * gdb.base/sym-file-lib.c (baz): New function. * gdb.base/sym-file-loader.c (struct segment) <mapped_size>: New field. (load): Store the segment's mapped size. (unload): New function. (unload_shlib): New function. * gdb.base/sym-file-loader.h (unload_shlib): New declaration. * gdb.base/sym-file-main.c (main): Unload, and reload the library, set a breakpoint at baz, and call it. * gdb.base/sym-file.exp: New tests for stale breakpoint instructions.
2014-04-23 00:19:19 +02:00
"$ gdb PROGRAM" vs "(gdb) file PROGRAM" difference; warn on failure to remove breakpoint. Turns out there's a difference between loading the program with "gdb PROGRAM", vs loading it with "(gdb) file PROGRAM". The latter results in the objfile ending up with OBJF_USERLOADED set, while not with the former. (That difference seems bogus, but still that's not the point of this patch. We can revisit that afterwards.) The new code that suppresses breakpoint removal errors for add-symbol-file objects ends up being too greedy: /* In some cases, we might not be able to remove a breakpoint in a shared library that has already been removed, but we have not yet processed the shlib unload event. Similarly for an unloaded add-symbol-file object - the user might not yet have had the chance to remove-symbol-file it. shlib_disabled will be set if the library/object has already been removed, but the breakpoint hasn't been uninserted yet, e.g., after "nosharedlibrary" or "remove-symbol-file" with breakpoints always-inserted mode. */ if (val && (bl->loc_type == bp_loc_software_breakpoint && (bl->shlib_disabled || solib_name_from_address (bl->pspace, bl->address) || userloaded_objfile_contains_address_p (bl->pspace, bl->address)))) val = 0; as it turns out that OBJF_USERLOADED can be set for objfiles loaded by some other means not add-symbol-file. In this case, symbol-file (or "file", which is really just "exec-file"+"symbol-file"). Recall that add-symbol-file is documented as: (gdb) help add-symbol-file Load symbols from FILE, assuming FILE has been dynamically loaded. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ And it's the "dynamically loaded" aspect that the breakpoint.c code cares about. So make add-symbol-file set OBJF_SHARED on its objfiles too, and tweak the breakpoint.c code to look for OBJF_SHARED instead of OBJF_USERLOADED. This restores back the missing breakpoint removal warning when we let sss-bp-on-user-bp-2.exp run on native GNU/Linux (https://sourceware.org/ml/gdb-patches/2014-06/msg00335.html): (gdb) PASS: gdb.base/sss-bp-on-user-bp-2.exp: define stepi_del_break stepi_del_break warning: Error removing breakpoint 3 (gdb) FAIL: gdb.base/sss-bp-on-user-bp-2.exp: stepi_del_break I say "restores" because this was GDB's behavior in 7.7 and earlier. And, likewise, "file" with no arguments only started turning breakpoints set in the main executable to "<pending>" with the remote-symbol-file patch (63644780). The old behavior is now restored, and we break-unload-file.exp test now exercizes both "gdb; file PROGRAM" and "gdb PROGRAM". gdb/ 2014-06-16 Pedro Alves <palves@redhat.com> * breakpoint.c (insert_bp_location, remove_breakpoint_1): Adjust. (disable_breakpoints_in_freed_objfile): Skip objfiles that don't have OBJF_SHARED set. * objfiles.c (userloaded_objfile_contains_address_p): Rename to... (shared_objfile_contains_address_p): ... this. Check OBJF_SHARED instead of OBJF_USERLOADED. * objfiles.h (OBJF_SHARED): Update comment. (userloaded_objfile_contains_address_p): Rename to ... (shared_objfile_contains_address_p): ... this, and update comments. * symfile.c (add_symbol_file_command): Also set OBJF_SHARED in the new objfile. (remove_symbol_file_command): Skip objfiles that don't have OBJF_SHARED set. gdb/testsuite/ 2014-06-16 Pedro Alves <palves@redhat.com> * gdb.base/break-main-file-remove-fail.c: New file. * gdb.base/break-main-file-remove-fail.exp: New file. * gdb.base/break-unload-file.exp: Use build_executable instead of prepare_for_testing. (test_break): New parameter "initial_load". Handle it. (top level): Add initial_load cmdline/file axis.
2014-06-16 16:38:13 +02:00
extern int shared_objfile_contains_address_p (struct program_space *pspace,
CORE_ADDR address);
Stale breakpoint instructions, spurious SIGTRAPS. Without the code portion of the patch, we get these failures: FAIL: gdb.base/break-unload-file.exp: always-inserted on: break: continue FAIL: gdb.base/break-unload-file.exp: always-inserted on: hbreak: continue FAIL: gdb.base/sym-file.exp: stale bkpts: continue to breakpoint: end here They all looks like random SIGTRAPs: continue Continuing. Program received signal SIGTRAP, Trace/breakpoint trap. 0x0000000000400541 in foo () at ../../../src/gdb/testsuite/gdb.base/break-unload-file.c:21 21 } (gdb) FAIL: gdb.base/break-unload-file.exp: always-inserted on: break: continue (This is a regression caused by the remove-symbol-file command series.) break-unload-file.exp is about having breakpoints inserted, and then doing "file". I caught this while writing a test that does "file PROGRAM", while PROGRAM was already loaded, which internally does "file" first, because I wanted to force a breakpoint_re_set, but the test is more explicit in case GDB ever optimizes out that re-set. The problem is that unloading the file with "file" ends up in disable_breakpoints_in_freed_objfile, which marks all breakpoint locations of the objfile as both shlib_disabled, _and_ clears the inserted flag, without actually removing the breakpoints from the inferior. Now, usually, in all-stop, breakpoints will already be removed from the inferior before the user can issue the "file" command, but, with non-stop, or breakpoints always-inserted on mode, breakpoints stay inserted even while the user has the prompt. In the latter case, then, if we let the program continue, and it executes the address where we had previously set the breakpoint, it'll actually execute the breakpoint instruction that we left behind... Now, one issue is that the intent of disable_breakpoints_in_freed_objfile is really to handle the unloading of OBJF_USERLOADED objfiles. These are objfiles that were added with add-symbol-file and that are removed with remove-symbol-file. "add-symbol-file"'s docs in the manual clearly say these commands are used to let GDB know about dynamically loaded code: You would use this command when @var{filename} has been dynamically loaded (by some other means) into the program that is running. Similarly, the online help says: (gdb) help add-symbol-file Load symbols from FILE, assuming FILE has been dynamically loaded. So it makes sense to, like when shared libraries are unloaded through the generic solib machinery, mark the breakpoint locations as shlib_disabled. But, the "file" command is not about dynamically loaded code, it's about the main program. So the patch makes disable_breakpoints_in_freed_objfile skip all objfiles but OBJF_USERLOADED ones, thus skipping the main objfile. Then, the reason that disable_breakpoints_in_freed_objfile was clearing the inserted flag isn't clear, but likely to avoid breakpoint removal errors, assuming remove-symbol-file was called after the dynamic object was already unmapped from the inferior. In that case, it'd okay to simply clear the inserted flag, but not so if the user for example does remove-symbol-file to remove the library because he made a mistake in the library's address, and wants to re-do add-symbol-file with the correct address. To address all that, I propose an alternative implementation, that handles both cases. The patch includes changes to sym-file.exp to cover them. This implementation leaves the inserted flag alone, and handles breakpoint insertion/removal failure gracefully when the locations are in OBJF_USERLOADED objfiles, just like we handle insertion/removal failure gracefully for locations in shared libraries. To try to make sure we aren't patching back stale shadow memory contents into the inferior, in case the program mapped a different library at the same address where we had the breakpoint, without the user having had a chance of remove-symbol-file'ing before, this adds a new memory_validate_breakpoint function that checks if the breakpoint instruction is still in memory. ppc_linux_memory_remove_breakpoint does this unconditionally for all memory breakpoints, and questions whether memory_remove_breakpoint should be changed to do this for all breakpoints. Possibly yes, though I'm not certain, hence this baby-steps patch. Tested on x86_64 Fedora 17, native and gdbserver. gdb/ 2014-04-23 Pedro Alves <palves@redhat.com> * breakpoint.c (insert_bp_location): Tolerate errors if the breakpoint is set in a user-loaded objfile. (remove_breakpoint_1): Likewise. Also tolerate errors if the location is marked shlib_disabled. If the breakpoint is set in a user-loaded objfile is a GDB-side memory breakpoint, validate it before uninsertion. (disable_breakpoints_in_freed_objfile): Skip non-OBJF_USERLOADED objfiles. Don't clear the location's inserted flag. * mem-break.c (memory_validate_breakpoint): New function. * objfiles.c (userloaded_objfile_contains_address_p): New function. * objfiles.h (userloaded_objfile_contains_address_p): Declare. * target.h (memory_validate_breakpoint): New declaration. gdb/testsuite/ 2014-04-23 Pedro Alves <palves@redhat.com> * gdb.base/break-unload-file.c: New file. * gdb.base/break-unload-file.exp: New file. * gdb.base/sym-file-lib.c (baz): New function. * gdb.base/sym-file-loader.c (struct segment) <mapped_size>: New field. (load): Store the segment's mapped size. (unload): New function. (unload_shlib): New function. * gdb.base/sym-file-loader.h (unload_shlib): New declaration. * gdb.base/sym-file-main.c (main): Unload, and reload the library, set a breakpoint at baz, and call it. * gdb.base/sym-file.exp: New tests for stale breakpoint instructions.
2014-04-23 00:19:19 +02:00
/* This operation deletes all objfile entries that represent solibs that
weren't explicitly loaded by the user, via e.g., the add-symbol-file
command. */
2000-05-28 03:12:42 +02:00
extern void objfile_purge_solibs (void);
/* Functions for dealing with the minimal symbol table, really a misc
address<->symbol mapping for things we don't have debug symbols for. */
2000-05-28 03:12:42 +02:00
extern int have_minimal_symbols (void);
2000-05-28 03:12:42 +02:00
extern struct obj_section *find_pc_section (CORE_ADDR pc);
* objfiles.h (pc_in_section): New prototype. (in_plt_section): Remove name argument, replace prototype with static inline function. * mips-tdep.h: Include "objfiles.h". (in_mips_stubs_section): New function. * hppa-tdep.h (gdbarch_tdep): Remove name argument of in_solib_call_trampoline member. (hppa_in_solib_call_trampoline): Remove name argument. * objfiles.c (pc_in_section): New function. (in_plt_section): Remove function. * mips-linux-tdep.c: Include "objfiles.h". (mips_linux_in_dynsym_stub): Call in_mips_stubs_section. Remove name argument. Return 1 rather than the low 16-bit halfword of any instruction examined. (mips_linux_in_dynsym_resolve_code): Update mips_linux_in_dynsym_stub call accordingly. * mips-tdep.c (mips_stub_frame_sniffer): Use in_mips_stubs_section rather than an equivalent hand-coded sequence. * hppa-hpux-tdep.c (in_opd_section): Remove function. (hppa32_hpux_in_solib_call_trampoline): Remove name argument. (hppa64_hpux_in_solib_call_trampoline): Likewise. (hppa64_hpux_find_global_pointer): Use pc_in_section rather than in_opd_section. * hppa-tdep.c (hppa_stub_unwind_sniffer): Remove name argument on call to tdep->in_solib_call_trampoline. (hppa_in_solib_call_trampoline): Remove name argument, update according to in_plt_section change. (hppa_skip_trampoline_code): Update according to in_plt_section change. * aarch64-tdep.c (aarch64_stub_unwind_sniffer): Likewise. * arm-symbian-tdep.c (arm_symbian_skip_trampoline_code): Likewise. * arm-tdep.c (arm_stub_unwind_sniffer): Likewise. * hppa-linux-tdep.c (hppa_linux_find_global_pointer): Likewise. * hppabsd-tdep.c (hppabsd_find_global_pointer): Likewise. * nios2-tdep.c (nios2_stub_frame_sniffer): Likewise. * nto-tdep.c (nto_relocate_section_addresses): Likewise. * s390-tdep.c (s390_stub_frame_sniffer): Likewise. * sh-tdep.c (sh_stub_unwind_sniffer): Likewise. * solib-dsbt.c (dsbt_in_dynsym_resolve_code): Likewise. * solib-frv.c (frv_in_dynsym_resolve_code): Likewise. * solib-svr4.c (svr4_in_dynsym_resolve_code): Likewise. * solib-target.c (solib_target_in_dynsym_resolve_code): Likewise. * sparc-tdep.c (sparc_analyze_prologue): Likewise. * tic6x-tdep.c (tic6x_stub_unwind_sniffer): Likewise.
2013-06-25 00:18:32 +02:00
/* Return non-zero if PC is in a section called NAME. */
-Wwrite-strings: The Rest This is the remainder boring constification that all looks more of less borderline obvious IMO. gdb/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * ada-exp.y (yyerror): Constify. * ada-lang.c (bound_name, get_selections) (ada_variant_discrim_type) (ada_variant_discrim_name, ada_value_struct_elt) (ada_lookup_struct_elt_type, is_unchecked_variant) (ada_which_variant_applies, standard_exc, ada_get_next_arg) (catch_ada_exception_command_split) (catch_ada_assert_command_split, catch_assert_command) (ada_op_name): Constify. * ada-lang.h (ada_yyerror, get_selections) (ada_variant_discrim_name, ada_value_struct_elt): Constify. * arc-tdep.c (arc_print_frame_cache): Constify. * arm-tdep.c (arm_skip_stub): Constify. * ax-gdb.c (gen_binop, gen_struct_ref_recursive, gen_struct_ref) (gen_aggregate_elt_ref): Constify. * bcache.c (print_bcache_statistics): Constify. * bcache.h (print_bcache_statistics): Constify. * break-catch-throw.c (catch_exception_command_1): * breakpoint.c (struct ep_type_description::description): Constify. (add_solib_catchpoint): Constify. (catch_fork_command_1): Add cast. (add_catch_command): Constify. * breakpoint.h (add_catch_command, add_solib_catchpoint): Constify. * bsd-uthread.c (bsd_uthread_state): Constify. * buildsym.c (patch_subfile_names): Constify. * buildsym.h (next_symbol_text_func, patch_subfile_names): Constify. * c-exp.y (yyerror): Constify. (token::oper): Constify. * c-lang.h (c_yyerror, cp_print_class_member): Constify. * c-varobj.c (cplus_describe_child): Constify. * charset.c (find_charset_names): Add cast. (find_charset_names): Constify array and add const_cast. * cli/cli-cmds.c (complete_command, cd_command): Constify. (edit_command): Constify. * cli/cli-decode.c (lookup_cmd): Constify. * cli/cli-dump.c (dump_memory_command, dump_value_command): Constify. (struct dump_context): Constify. (add_dump_command, restore_command): Constify. * cli/cli-script.c (get_command_line): Constify. * cli/cli-script.h (get_command_line): Constify. * cli/cli-utils.c (check_for_argument): Constify. * cli/cli-utils.h (check_for_argument): Constify. * coff-pe-read.c (struct read_pe_section_data): Constify. * command.h (lookup_cmd): Constify. * common/print-utils.c (decimal2str): Constify. * completer.c (gdb_print_filename): Constify. * corefile.c (set_gnutarget): Constify. * cp-name-parser.y (yyerror): Constify. * cp-valprint.c (cp_print_class_member): Constify. * cris-tdep.c (cris_register_name, crisv32_register_name): Constify. * d-exp.y (yyerror): Constify. (struct token::oper): Constify. * d-lang.h (d_yyerror): Constify. * dbxread.c (struct header_file_location::name): Constify. (add_old_header_file, add_new_header_file, last_function_name) (dbx_next_symbol_text, add_bincl_to_list) (find_corresponding_bincl_psymtab, set_namestring) (find_stab_function_addr, read_dbx_symtab, start_psymtab) (dbx_end_psymtab, read_ofile_symtab, process_one_symbol): * defs.h (command_line_input, print_address_symbolic) (deprecated_readline_begin_hook): Constify. * dwarf2read.c (anonymous_struct_prefix, dwarf_bool_name): Constify. * event-top.c (handle_line_of_input): Constify and add cast. * exceptions.c (catch_errors): Constify. * exceptions.h (catch_errors): Constify. * expprint.c (print_subexp_standard, op_string, op_name) (op_name_standard, dump_raw_expression, dump_raw_expression): * expression.h (op_name, op_string, dump_raw_expression): Constify. * f-exp.y (yyerror): Constify. (struct token::oper): Constify. (struct f77_boolean_val::name): Constify. * f-lang.c (f_word_break_characters): Constify. * f-lang.h (f_yyerror): Constify. * fork-child.c (fork_inferior): Add cast. * frv-tdep.c (struct gdbarch_tdep::register_names): Constify. (new_variant): Constify. * gdbarch.sh (pstring_ptr, pstring_list): Constify. * gdbarch.c: Regenerate. * gdbcore.h (set_gnutarget): Constify. * go-exp.y (yyerror): Constify. (token::oper): Constify. * go-lang.h (go_yyerror): Constify. * go32-nat.c (go32_sysinfo): Constify. * guile/scm-breakpoint.c (gdbscm_breakpoint_expression): Constify. * guile/scm-cmd.c (cmdscm_function): Constify. * guile/scm-param.c (pascm_param_value): Constify. * h8300-tdep.c (h8300_register_name, h8300s_register_name) (h8300sx_register_name): Constify. * hppa-tdep.c (hppa32_register_name, hppa64_register_name): Constify. * ia64-tdep.c (ia64_register_names): Constify. * infcmd.c (construct_inferior_arguments): Constify. (path_command, attach_post_wait): Constify. * language.c (show_range_command, show_case_command) (unk_lang_error): Constify. * language.h (language_defn::la_error) (language_defn::la_name_of_this): Constify. * linespec.c (decode_line_2): Constify. * linux-thread-db.c (thread_db_err_str): Constify. * lm32-tdep.c (lm32_register_name): Constify. * m2-exp.y (yyerror): Constify. * m2-lang.h (m2_yyerror): Constify. * m32r-tdep.c (m32r_register_names): Constify and make static. * m68hc11-tdep.c (m68hc11_register_names): Constify. * m88k-tdep.c (m88k_register_name): Constify. * macroexp.c (appendmem): Constify. * mdebugread.c (fdr_name, add_data_symbol, parse_type) (upgrade_type, parse_external, parse_partial_symbols) (mdebug_next_symbol_text, cross_ref, mylookup_symbol, new_psymtab) (new_symbol): Constify. * memattr.c (mem_info_command): Constify. * mep-tdep.c (register_name_from_keyword): Constify. * mi/mi-cmd-env.c (mi_cmd_env_path, _initialize_mi_cmd_env): Constify. * mi/mi-cmd-stack.c (list_args_or_locals): Constify. * mi/mi-cmd-var.c (mi_cmd_var_show_attributes): Constify. * mi/mi-main.c (captured_mi_execute_command): Constify and add cast. (mi_execute_async_cli_command): Constify. * mips-tdep.c (mips_register_name): Constify. * mn10300-tdep.c (register_name, mn10300_generic_register_name) (am33_register_name, am33_2_register_name) * moxie-tdep.c (moxie_register_names): Constify. * nat/linux-osdata.c (osdata_type): Constify fields. * nto-tdep.c (nto_parse_redirection): Constify. * objc-lang.c (lookup_struct_typedef, lookup_objc_class) (lookup_child_selector): Constify. (objc_methcall::name): Constify. * objc-lang.h (lookup_objc_class, lookup_child_selector) (lookup_struct_typedef): Constify. * objfiles.c (pc_in_section): Constify. * objfiles.h (pc_in_section): Constify. * p-exp.y (struct token::oper): Constify. (yyerror): Constify. * p-lang.h (pascal_yyerror): Constify. * parser-defs.h (op_name_standard): Constify. (op_print::string): Constify. (exp_descriptor::op_name): Constify. * printcmd.c (print_address_symbolic): Constify. * psymtab.c (print_partial_symbols): Constify. * python/py-breakpoint.c (stop_func): Constify. (bppy_get_expression): Constify. * python/py-cmd.c (cmdpy_completer::name): Constify. (cmdpy_function): Constify. * python/py-event.c (evpy_add_attribute) (gdbpy_initialize_event_generic): Constify. * python/py-event.h (evpy_add_attribute) (gdbpy_initialize_event_generic): Constify. * python/py-evts.c (add_new_registry): Constify. * python/py-finishbreakpoint.c (outofscope_func): Constify. * python/py-framefilter.c (get_py_iter_from_func): Constify. * python/py-inferior.c (get_buffer): Add cast. * python/py-param.c (parm_constant::name): Constify. * python/py-unwind.c (fprint_frame_id): Constify. * python/python.c (gdbpy_parameter_value): Constify. * remote-fileio.c (remote_fio_func_map): Make 'name' const. * remote.c (memory_packet_config::name): Constify. (show_packet_config_cmd, remote_write_bytes) (remote_buffer_add_string): * reverse.c (exec_reverse_once): Constify. * rs6000-tdep.c (variant::name, variant::description): Constify. * rust-exp.y (rustyyerror): Constify. * rust-lang.c (rust_op_name): Constify. * rust-lang.h (rustyyerror): Constify. * serial.h (serial_ops::name): Constify. * sh-tdep.c (sh_sh_register_name, sh_sh3_register_name) (sh_sh3e_register_name, sh_sh2e_register_name) (sh_sh2a_register_name, sh_sh2a_nofpu_register_name) (sh_sh_dsp_register_name, sh_sh3_dsp_register_name) (sh_sh4_register_name, sh_sh4_nofpu_register_name) (sh_sh4al_dsp_register_name): Constify. * sh64-tdep.c (sh64_register_name): Constify. * solib-darwin.c (lookup_symbol_from_bfd): Constify. * spu-tdep.c (spu_register_name, info_spu_dma_cmdlist): Constify. * stabsread.c (patch_block_stabs, read_type_number) (ref_map::stabs, ref_add, process_reference) (symbol_reference_defined, define_symbol, define_symbol) (error_type, read_type, read_member_functions, read_cpp_abbrev) (read_one_struct_field, read_struct_fields, read_baseclasses) (read_tilde_fields, read_struct_type, read_array_type) (read_enum_type, read_sun_builtin_type, read_sun_floating_type) (read_huge_number, read_range_type, read_args, common_block_start) (find_name_end): Constify. * stabsread.h (common_block_start, define_symbol) (process_one_symbol, symbol_reference_defined, ref_add): * symfile.c (get_section_index, add_symbol_file_command): * symfile.h (get_section_index): Constify. * target-descriptions.c (tdesc_type::name): Constify. (tdesc_free_type): Add cast. * target.c (find_default_run_target): (add_deprecated_target_alias, find_default_run_target) (target_announce_detach): Constify. (do_option): Constify. * target.h (add_deprecated_target_alias): Constify. * thread.c (print_thread_info_1): Constify. * top.c (deprecated_readline_begin_hook, command_line_input): Constify. (init_main): Add casts. * top.h (handle_line_of_input): Constify. * tracefile-tfile.c (tfile_write_uploaded_tsv): Constify. * tracepoint.c (tvariables_info_1, trace_status_mi): Constify. (tfind_command): Rename to ... (tfind_command_1): ... this and constify. (tfind_command): New function. (tfind_end_command, tfind_start_command): Adjust. (encode_source_string): Constify. * tracepoint.h (encode_source_string): Constify. * tui/tui-data.c (tui_partial_win_by_name): Constify. * tui/tui-data.h (tui_partial_win_by_name): Constify. * tui/tui-source.c (tui_set_source_content_nil): Constify. * tui/tui-source.h (tui_set_source_content_nil): Constify. * tui/tui-win.c (parse_scrolling_args): Constify. * tui/tui-windata.c (tui_erase_data_content): Constify. * tui/tui-windata.h (tui_erase_data_content): Constify. * tui/tui-winsource.c (tui_erase_source_content): Constify. * tui/tui.c (tui_enable): Add cast. * utils.c (defaulted_query): Constify. (init_page_info): Add cast. (puts_debug, subset_compare): Constify. * utils.h (subset_compare): Constify. * varobj.c (varobj_format_string): Constify. * varobj.h (varobj_format_string): Constify. * vax-tdep.c (vax_register_name): Constify. * windows-nat.c (windows_detach): Constify. * xcoffread.c (process_linenos, xcoff_next_symbol_text): Constify. * xml-support.c (gdb_xml_end_element): Constify. * xml-tdesc.c (tdesc_start_reg): Constify. * xstormy16-tdep.c (xstormy16_register_name): Constify. * xtensa-tdep.c (xtensa_find_register_by_name): Constify. * xtensa-tdep.h (xtensa_register_t::name): Constify. gdb/gdbserver/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * gdbreplay.c (sync_error): Constify. * linux-x86-low.c (push_opcode): Constify.
2017-04-05 20:21:37 +02:00
extern int pc_in_section (CORE_ADDR, const char *);
* objfiles.h (pc_in_section): New prototype. (in_plt_section): Remove name argument, replace prototype with static inline function. * mips-tdep.h: Include "objfiles.h". (in_mips_stubs_section): New function. * hppa-tdep.h (gdbarch_tdep): Remove name argument of in_solib_call_trampoline member. (hppa_in_solib_call_trampoline): Remove name argument. * objfiles.c (pc_in_section): New function. (in_plt_section): Remove function. * mips-linux-tdep.c: Include "objfiles.h". (mips_linux_in_dynsym_stub): Call in_mips_stubs_section. Remove name argument. Return 1 rather than the low 16-bit halfword of any instruction examined. (mips_linux_in_dynsym_resolve_code): Update mips_linux_in_dynsym_stub call accordingly. * mips-tdep.c (mips_stub_frame_sniffer): Use in_mips_stubs_section rather than an equivalent hand-coded sequence. * hppa-hpux-tdep.c (in_opd_section): Remove function. (hppa32_hpux_in_solib_call_trampoline): Remove name argument. (hppa64_hpux_in_solib_call_trampoline): Likewise. (hppa64_hpux_find_global_pointer): Use pc_in_section rather than in_opd_section. * hppa-tdep.c (hppa_stub_unwind_sniffer): Remove name argument on call to tdep->in_solib_call_trampoline. (hppa_in_solib_call_trampoline): Remove name argument, update according to in_plt_section change. (hppa_skip_trampoline_code): Update according to in_plt_section change. * aarch64-tdep.c (aarch64_stub_unwind_sniffer): Likewise. * arm-symbian-tdep.c (arm_symbian_skip_trampoline_code): Likewise. * arm-tdep.c (arm_stub_unwind_sniffer): Likewise. * hppa-linux-tdep.c (hppa_linux_find_global_pointer): Likewise. * hppabsd-tdep.c (hppabsd_find_global_pointer): Likewise. * nios2-tdep.c (nios2_stub_frame_sniffer): Likewise. * nto-tdep.c (nto_relocate_section_addresses): Likewise. * s390-tdep.c (s390_stub_frame_sniffer): Likewise. * sh-tdep.c (sh_stub_unwind_sniffer): Likewise. * solib-dsbt.c (dsbt_in_dynsym_resolve_code): Likewise. * solib-frv.c (frv_in_dynsym_resolve_code): Likewise. * solib-svr4.c (svr4_in_dynsym_resolve_code): Likewise. * solib-target.c (solib_target_in_dynsym_resolve_code): Likewise. * sparc-tdep.c (sparc_analyze_prologue): Likewise. * tic6x-tdep.c (tic6x_stub_unwind_sniffer): Likewise.
2013-06-25 00:18:32 +02:00
/* Return non-zero if PC is in a SVR4-style procedure linkage table
section. */
static inline int
in_plt_section (CORE_ADDR pc)
{
return pc_in_section (pc, ".plt");
}
/* Keep a registry of per-objfile data-pointers required by other GDB
modules. */
* auto-load.c (_initialize_auto_load): Update. * solib-svr4.c (_initialize_svr4_solib): Update * solib-dsbt.c (_initialize_dsbt_solib): Update. * solib-darwin.c (_initialize_darwin_solib): Update. * registry.h: New file. * python/py-progspace.c (gdbpy_initialize_pspace): Update. * python/py-inferior.c (gdbpy_initialize_inferior): Update. * progspace.h: Include registry.h. Use DECLARE_REGISTRY. (register_program_space_data_with_cleanup) (register_program_space_data, program_space_alloc_data) (clear_program_space_data, set_program_space_data) (program_space_data): Don't declare. * progspace.c: Use DEFINE_REGISTRY. (struct program_space_data, struct program_space_data_registration, struct program_space_data_registry, program_space_data_registry) (register_program_space_data_with_cleanup) (register_program_space_data, program_space_alloc_data) (program_space_free_data, clear_program_space_data) (set_program_space_data, program_space_data): Remove. * objfiles.h: Include registry.h. Use DECLARE_REGISTRY. (struct objfile) <data, num_data>: Replace with REGISTRY_FIELDS. (register_objfile_data_with_cleanup, register_objfile_data) (clear_objfile_data, set_objfile_data, objfile_data): Don't declare. * objfiles.c: Use DEFINE_REGISTRY. (struct objfile_data, struct objfile_data_registration, struct objfile_data_registry, objfile_data_registry) (register_objfile_data_with_cleanup, register_objfile_data) (objfile_alloc_data, objfile_free_data, clear_objfile_data) (set_objfile_data, objfile_data): Remove. (_initialize_objfiles): Update. * jit.c (_initialize_jit): Update. * inflow.c (_initialize_inflow): Update. * inferior.h: Include registry.h. Use DECLARE_REGISTRY. (struct inferior) <data, num_data>: Replace with REGISTRY_FIELDS. (register_inferior_data_with_cleanup, register_inferior_data) (clear_inferior_data, set_inferior_data, inferior_data): Don't declare. * inferior.c: Use DEFINE_REGISTRY. (struct inferior_data, struct inferior_data_registration, struct inferior_data_registry, inferior_data_registry) (register_inferior_data_with_cleanup, register_inferior_data) (inferior_alloc_data, inferior_free_data clear_inferior_data) (set_inferior_data, inferior_data): Remove. * auxv.c (_initialize_auxv): Update. * ada-lang.c (_initialize_ada_language): Update. * breakpoint.c (_initialize_breakpoint): Update. * i386-nat.c (i386_use_watchpoints): Update.
2012-08-22 17:17:21 +02:00
DECLARE_REGISTRY(objfile);
/* In normal use, the section map will be rebuilt by find_pc_section
if objfiles have been added, removed or relocated since it was last
called. Calling inhibit_section_map_updates will inhibit this
behavior until resume_section_map_updates is called. If you call
inhibit_section_map_updates you must ensure that every call to
find_pc_section in the inhibited region relates to a section that
is already in the section map and has not since been removed or
relocated. */
extern void inhibit_section_map_updates (struct program_space *pspace);
/* Resume automatically rebuilding the section map as required. */
extern void resume_section_map_updates (struct program_space *pspace);
/* Version of the above suitable for use as a cleanup. */
extern void resume_section_map_updates_cleanup (void *arg);
New "iterate_over_objfiles_in_search_order" gdbarch method. This patch introduces the "iterate_over_objfiles_in_search_order" gdbarch method, as well as its default implementation, and converts the areas where it will matter to using this gdbarch method. The default method implementation is the only one installed, and the changes should have no functional impact in terms of behavior. This only paves the way for the architectures that will need their own version. gdb/ChangeLog: * gdbarch.sh: Add generation of "iterate_over_objfiles_in_search_order_cb_ftype" typedef in gdbarch.h. Add include of "objfiles.h" in gdbarch.c. (iterate_over_objfiles_in_search_order): New gdbarch method. * gdbarch.h, gdbarch.c: Regenerate. * objfiles.h (default_iterate_over_objfiles_in_search_order): Add declaration. * objfiles.c (default_iterate_over_objfiles_in_search_order): New function. * symtab.c (lookup_symbol_aux_objfile): New function, extracted out of lookup_symbol_aux_symtabs. (lookup_symbol_aux_symtabs): Replace extracted-out code by call to lookup_symbol_aux_objfile. (struct global_sym_lookup_data): New type. (lookup_symbol_global_iterator_cb): New function. (lookup_symbol_global): Search for symbol using gdbarch_iterate_over_objfiles_in_search_order and lookup_symbol_global_iterator_cb. * findvar.c (struct minsym_lookup_data): New type. (minsym_lookup_iterator_cb): New function. (default_read_var_value) [case LOC_UNRESOLVED]: Resolve the symbol's address via gdbarch_iterate_over_objfiles_in_search_order and minsym_lookup_iterator_cb.
2012-06-05 15:50:50 +02:00
extern void default_iterate_over_objfiles_in_search_order
(struct gdbarch *gdbarch,
iterate_over_objfiles_in_search_order_cb_ftype *cb,
void *cb_data, struct objfile *current_objfile);
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
/* Traverse all object files in the current program space.
ALL_OBJFILES_SAFE works even if you delete the objfile during the
traversal. */
/* Traverse all object files in program space SS. */
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
#define ALL_PSPACE_OBJFILES(ss, obj) \
for ((obj) = ss->objfiles; (obj) != NULL; (obj) = (obj)->next)
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
#define ALL_OBJFILES(obj) \
for ((obj) = current_program_space->objfiles; \
(obj) != NULL; \
(obj) = (obj)->next)
#define ALL_OBJFILES_SAFE(obj,nxt) \
for ((obj) = current_program_space->objfiles; \
(obj) != NULL? ((nxt)=(obj)->next,1) :0; \
(obj) = (nxt))
/* Traverse all symtabs in one objfile. */
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
#define ALL_OBJFILE_FILETABS(objfile, cu, s) \
ALL_OBJFILE_COMPUNITS (objfile, cu) \
ALL_COMPUNIT_FILETABS (cu, s)
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
/* Traverse all compunits in one objfile. */
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
#define ALL_OBJFILE_COMPUNITS(objfile, cu) \
for ((cu) = (objfile) -> compunit_symtabs; (cu) != NULL; (cu) = (cu) -> next)
/* Traverse all minimal symbols in one objfile. */
move minimal symbols to per-bfd Now that minimal symbols are independent of the program space, we can move them to the per-BFD object. This lets us save memory in the multi-inferior case; and, once the symbol readers are updated, time. The other prerequisite for this move is that all the objects referred to by the minimal symbols have a lifetime at least as long as the per-BFD object. I think this is satisfied partially by this patch (moving the copied names there) and partially by earlier patches moving the demangled name hash. This patch contains a bit of logic to avoid creating new minimal symbols if they have already been read for a given BFD. This allows us to avoid trying to update all the symbol readers for this condition. At first glance this may seem like a hack, but some symbol readers mix psym and minsym reading, and would require logic just like this regardless -- and it is simpler and less error-prone to just do the work in a central spot. 2014-02-26 Tom Tromey <tromey@redhat.com> * minsyms.c (lookup_minimal_symbol, iterate_over_minimal_symbols) (lookup_minimal_symbol_text, lookup_minimal_symbol_by_pc_name) (lookup_minimal_symbol_solib_trampoline) (lookup_minimal_symbol_by_pc_section_1) (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Use the per-BFD obstack. Don't allocate a minimal symbol if minsyms have already been read. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Do nothing if minsyms already read. Use the per-BFD obstack. (terminate_minimal_symbol_table): Use the per-BFD obstack. * objfiles.c (allocate_objfile): Call terminate_minimal_symbol_table later. (have_minimal_symbols): Update. * objfiles.h (struct objfile_per_bfd_storage) <msymbols, minimal_symbol_count, msymbol_hash, msymbol_demangled_hash>: Move from struct objfile. <minsyms_read>: New field. (struct objfile) <msymbols, minimal_symbol_count, msymbol_hash, msymbol_demangled_hash>: Move. (ALL_OBJFILE_MSYMBOLS): Update. * symfile.c (read_symbols): Set minsyms_read. (reread_symbols): Update. * symmisc.c (dump_objfile, dump_msymbols): Update.
2013-10-15 19:37:19 +02:00
#define ALL_OBJFILE_MSYMBOLS(objfile, m) \
for ((m) = (objfile)->per_bfd->msymbols; \
MSYMBOL_LINKAGE_NAME (m) != NULL; \
(m)++)
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
/* Traverse all symtabs in all objfiles in the current symbol
space. */
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
#define ALL_FILETABS(objfile, ps, s) \
ALL_OBJFILES (objfile) \
ALL_OBJFILE_FILETABS (objfile, ps, s)
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
/* Traverse all compunits in all objfiles in the current program space. */
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
#define ALL_COMPUNITS(objfile, cu) \
ALL_OBJFILES (objfile) \
Split struct symtab into two: struct symtab and compunit_symtab. Currently "symtabs" in gdb are stored as a single linked list of struct symtab that contains both symbol symtabs (the blockvectors) and file symtabs (the linetables). This has led to confusion, bugs, and performance issues. This patch is conceptually very simple: split struct symtab into two pieces: one part containing things common across the entire compilation unit, and one part containing things specific to each source file. Example. For the case of a program built out of these files: foo.c foo1.h foo2.h bar.c foo1.h bar.h Today we have a single list of struct symtabs: objfile -> foo.c -> foo1.h -> foo2.h -> bar.c -> foo1.h -> bar.h -> NULL where "->" means the "next" pointer in struct symtab. With this patch, that turns into: objfile -> foo.c(cu) -> bar.c(cu) -> NULL | | v v foo.c bar.c | | v v foo1.h foo1.h | | v v foo2.h bar.h | | v v NULL NULL where "foo.c(cu)" and "bar.c(cu)" are struct compunit_symtab objects, and the files foo.c, etc. are struct symtab objects. So now, for example, when we want to iterate over all blockvectors we can now just iterate over the compunit_symtab list. Plus a lot of the data that was either unused or replicated for each symtab in a compilation unit now lives in struct compunit_symtab. E.g., the objfile pointer, the producer string, etc. I thought of moving "language" out of struct symtab but there is logic to try to compute the language based on previously seen files, and I think that's best left as is for now. With my standard monster benchmark with -readnow (which I can't actually do, but based on my calculations), whereas today the list requires 77MB to store all the struct symtabs, it now only requires 37MB. A modest space savings given the gigabytes needed for all the debug info, etc. Still, it's nice. Plus, whereas today we create a copy of dirname for each source file symtab in a compilation unit, we now only create one for the compunit. So this patch is basically just a data structure reorg, I don't expect significant performance improvements from it. Notes: 1) A followup patch can do a similar split for struct partial_symtab. I have left that until after I get the changes I want in to better utilize .gdb_index (it may affect how we do partial syms). 2) Another followup patch *could* rename struct symtab. The term "symtab" is ambiguous and has been a source of confusion. In this patch I'm leaving it alone, calling it the "historical" name of "filetabs", which is what they are now: just the file-name + line-table. gdb/ChangeLog: Split struct symtab into two: struct symtab and compunit_symtab. * amd64-tdep.c (amd64_skip_xmm_prologue): Fetch producer from compunit. * block.c (blockvector_for_pc_sect): Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (set_block_compunit_symtab): Renamed from set_block_symtab. Change "struct symtab *" argument to "struct compunit_symtab *". All callers updated. (get_block_compunit_symtab): Renamed from get_block_symtab. Change result to "struct compunit_symtab *". All callers updated. (find_iterator_compunit_symtab): Renamed from find_iterator_symtab. Change result to "struct compunit_symtab *". All callers updated. * block.h (struct global_block) <compunit_symtab>: Renamed from symtab. hange type to "struct compunit_symtab *". All uses updated. (struct block_iterator) <d.compunit_symtab>: Renamed from "d.symtab". Change type to "struct compunit_symtab *". All uses updated. * buildsym.c (struct buildsym_compunit): New struct. (subfiles, buildsym_compdir, buildsym_objfile, main_subfile): Delete. (buildsym_compunit): New static global. (finish_block_internal): Update to fetch objfile from buildsym_compunit. (make_blockvector): Delete objfile argument. (start_subfile): Rewrite to use buildsym_compunit. Don't initialize debugformat, producer. (start_buildsym_compunit): New function. (free_buildsym_compunit): Renamed from free_subfiles_list. All callers updated. (patch_subfile_names): Rewrite to use buildsym_compunit. (get_compunit_symtab): New function. (get_macro_table): Delete argument comp_dir. All callers updated. (start_symtab): Change result to "struct compunit_symtab *". All callers updated. Create the subfile of the main source file. (watch_main_source_file_lossage): Rewrite to use buildsym_compunit. (reset_symtab_globals): Update. (end_symtab_get_static_block): Update to use buildsym_compunit. (end_symtab_without_blockvector): Rewrite. (end_symtab_with_blockvector): Change result to "struct compunit_symtab *". All callers updated. Update to use buildsym_compunit. Don't set symtab->dirname, instead set it in the compunit. Explicitly make sure main symtab is first in its list. Set debugformat, producer, blockvector, block_line_section, and macrotable in the compunit. (end_symtab_from_static_block): Change result to "struct compunit_symtab *". All callers updated. (end_symtab, end_expandable_symtab): Ditto. (set_missing_symtab): Change symtab argument to "struct compunit_symtab *". All callers updated. (augment_type_symtab): Ditto. (record_debugformat): Update to use buildsym_compunit. (record_producer): Update to use buildsym_compunit. * buildsym.h (struct subfile) <dirname>: Delete. <producer, debugformat>: Delete. <buildsym_compunit>: New member. (get_compunit_symtab): Declare. * dwarf2read.c (struct type_unit_group) <compunit_symtab>: Renamed from primary_symtab. Change type to "struct compunit_symtab *". All uses updated. (dwarf2_start_symtab): Change result to "struct compunit_symtab *". All callers updated. (dwarf_decode_macros): Delete comp_dir argument. All callers updated. (struct dwarf2_per_cu_quick_data) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. (dw2_instantiate_symtab): Change result to "struct compunit_symtab *". All callers updated. (dw2_find_last_source_symtab): Ditto. (dw2_lookup_symbol): Ditto. (recursively_find_pc_sect_compunit_symtab): Renamed from recursively_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (dw2_find_pc_sect_compunit_symtab): Renamed from dw2_find_pc_sect_symtab. Change result to "struct compunit_symtab *". All callers updated. (get_compunit_symtab): Renamed from get_symtab. Change result to "struct compunit_symtab *". All callers updated. (recursively_compute_inclusions): Change type of immediate_parent argument to "struct compunit_symtab *". All callers updated. (compute_compunit_symtab_includes): Renamed from compute_symtab_includes. All callers updated. Rewrite to compute includes of compunit_symtabs and not symtabs. (process_full_comp_unit): Update to work with struct compunit_symtab. (process_full_type_unit): Ditto. (dwarf_decode_lines_1): Delete argument comp_dir. All callers updated. (dwarf_decode_lines): Remove special case handling of main subfile. (macro_start_file): Delete argument comp_dir. All callers updated. (dwarf_decode_macro_bytes): Ditto. * guile/scm-block.c (bkscm_print_block_syms_progress_smob): Update to use struct compunit_symtab. * i386-tdep.c (i386_skip_prologue): Fetch producer from compunit. * jit.c (finalize_symtab): Build compunit_symtab. * jv-lang.c (get_java_class_symtab): Change result to "struct compunit_symtab *". All callers updated. * macroscope.c (sal_macro_scope): Fetch macro table from compunit. * macrotab.c (struct macro_table) <compunit_symtab>: Renamed from comp_dir. Change type to "struct compunit_symtab *". All uses updated. (new_macro_table): Change comp_dir argument to cust, "struct compunit_symtab *". All callers updated. * maint.c (struct cmd_stats) <nr_compunit_symtabs>: Renamed from nr_primary_symtabs. All uses updated. (count_symtabs_and_blocks): Update to handle compunits. (report_command_stats): Update output, "primary symtabs" renamed to "compunits". * mdebugread.c (new_symtab): Change result to "struct compunit_symtab *". All callers updated. (parse_procedure): Change type of search_symtab argument to "struct compunit_symtab *". All callers updated. * objfiles.c (objfile_relocate1): Loop over blockvectors in a separate loop. * objfiles.h (struct objfile) <compunit_symtabs>: Renamed from symtabs. Change type to "struct compunit_symtab *". All uses updated. (ALL_OBJFILE_FILETABS): Renamed from ALL_OBJFILE_SYMTABS. All uses updated. (ALL_OBJFILE_COMPUNITS): Renamed from ALL_OBJFILE_PRIMARY_SYMTABS. All uses updated. (ALL_FILETABS): Renamed from ALL_SYMTABS. All uses updated. (ALL_COMPUNITS): Renamed from ALL_PRIMARY_SYMTABS. All uses updated. * psympriv.h (struct partial_symtab) <compunit_symtab>: Renamed from symtab. Change type to "struct compunit_symtab *". All uses updated. * psymtab.c (psymtab_to_symtab): Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab_from_partial): Renamed from find_pc_sect_symtab_from_partial. Change result type to "struct compunit_symtab *". All callers updated. (lookup_symbol_aux_psymtabs): Change result type to "struct compunit_symtab *". All callers updated. (find_last_source_symtab_from_partial): Ditto. * python/py-symtab.c (stpy_get_producer): Fetch producer from compunit. * source.c (forget_cached_source_info_for_objfile): Fetch debugformat and macro_table from compunit. * symfile-debug.c (debug_qf_find_last_source_symtab): Change result type to "struct compunit_symtab *". All callers updated. (debug_qf_lookup_symbol): Ditto. (debug_qf_find_pc_sect_compunit_symtab): Renamed from debug_qf_find_pc_sect_symtab, change result type to "struct compunit_symtab *". All callers updated. * symfile.c (allocate_symtab): Delete objfile argument. New argument cust. (allocate_compunit_symtab): New function. (add_compunit_symtab_to_objfile): New function. * symfile.h (struct quick_symbol_functions) <lookup_symbol>: Change result type to "struct compunit_symtab *". All uses updated. <find_pc_sect_compunit_symtab>: Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All uses updated. * symmisc.c (print_objfile_statistics): Compute blockvector count in separate loop. (dump_symtab_1): Update test for primary source symtab. (maintenance_info_symtabs): Update to handle compunit symtabs. (maintenance_check_symtabs): Ditto. * symtab.c (set_primary_symtab): Delete. (compunit_primary_filetab): New function. (compunit_language): New function. (iterate_over_some_symtabs): Change type of arguments "first", "after_last" to "struct compunit_symtab *". All callers updated. Update to loop over symtabs in each compunit. (error_in_psymtab_expansion): Rename symtab argument to cust, and change type to "struct compunit_symtab *". All callers updated. (find_pc_sect_compunit_symtab): Renamed from find_pc_sect_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_compunit_symtab): Renamed from find_pc_symtab. Change result type to "struct compunit_symtab *". All callers updated. (find_pc_sect_line): Only loop over symtabs within selected compunit instead of all symtabs in the objfile. * symtab.h (struct symtab) <blockvector>: Moved to compunit_symtab. <compunit_symtab> New member. <block_line_section>: Moved to compunit_symtab. <locations_valid>: Ditto. <epilogue_unwind_valid>: Ditto. <macro_table>: Ditto. <dirname>: Ditto. <debugformat>: Ditto. <producer>: Ditto. <objfile>: Ditto. <call_site_htab>: Ditto. <includes>: Ditto. <user>: Ditto. <primary>: Delete (SYMTAB_COMPUNIT): New macro. (SYMTAB_BLOCKVECTOR): Update definition. (SYMTAB_OBJFILE): Update definition. (SYMTAB_DIRNAME): Update definition. (struct compunit_symtab): New type. Common members among all source symtabs within a compilation unit moved here. All uses updated. (COMPUNIT_OBJFILE): New macro. (COMPUNIT_FILETABS): New macro. (COMPUNIT_DEBUGFORMAT): New macro. (COMPUNIT_PRODUCER): New macro. (COMPUNIT_DIRNAME): New macro. (COMPUNIT_BLOCKVECTOR): New macro. (COMPUNIT_BLOCK_LINE_SECTION): New macro. (COMPUNIT_LOCATIONS_VALID): New macro. (COMPUNIT_EPILOGUE_UNWIND_VALID): New macro. (COMPUNIT_CALL_SITE_HTAB): New macro. (COMPUNIT_MACRO_TABLE): New macro. (ALL_COMPUNIT_FILETABS): New macro. (compunit_symtab_ptr): New typedef. (DEF_VEC_P (compunit_symtab_ptr)): New vector type. gdb/testsuite/ChangeLog: * gdb.base/maint.exp: Update expected output.
2014-11-20 16:42:48 +01:00
ALL_OBJFILE_COMPUNITS (objfile, cu)
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
/* Traverse all minimal symbols in all objfiles in the current symbol
space. */
#define ALL_MSYMBOLS(objfile, m) \
ALL_OBJFILES (objfile) \
ALL_OBJFILE_MSYMBOLS (objfile, m)
#define ALL_OBJFILE_OSECTIONS(objfile, osect) \
for (osect = objfile->sections; osect < objfile->sections_end; osect++) \
if (osect->the_bfd_section == NULL) \
{ \
/* Nothing. */ \
} \
else
/* Traverse all obj_sections in all objfiles in the current program
space.
Note that this detects a "break" in the inner loop, and exits
immediately from the outer loop as well, thus, client code doesn't
need to know that this is implemented with a double for. The extra
hair is to make sure that a "break;" stops the outer loop iterating
as well, and both OBJFILE and OSECT are left unmodified:
- The outer loop learns about the inner loop's end condition, and
stops iterating if it detects the inner loop didn't reach its
end. In other words, the outer loop keeps going only if the
inner loop reached its end cleanly [(osect) ==
(objfile)->sections_end].
- OSECT is initialized in the outer loop initialization
expressions, such as if the inner loop has reached its end, so
the check mentioned above succeeds the first time.
- The trick to not clearing OBJFILE on a "break;" is, in the outer
loop's loop expression, advance OBJFILE, but iff the inner loop
reached its end. If not, there was a "break;", so leave OBJFILE
as is; the outer loop's conditional will break immediately as
well (as OSECT will be different from OBJFILE->sections_end). */
#define ALL_OBJSECTIONS(objfile, osect) \
for ((objfile) = current_program_space->objfiles, \
(objfile) != NULL ? ((osect) = (objfile)->sections_end) : 0; \
(objfile) != NULL \
&& (osect) == (objfile)->sections_end; \
((osect) == (objfile)->sections_end \
? ((objfile) = (objfile)->next, \
(objfile) != NULL ? (osect) = (objfile)->sections_end : 0) \
: 0)) \
ALL_OBJFILE_OSECTIONS (objfile, osect)
#define SECT_OFF_DATA(objfile) \
((objfile->sect_index_data == -1) \
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 23:22:53 +01:00
? (internal_error (__FILE__, __LINE__, \
_("sect_index_data not initialized")), -1) \
: objfile->sect_index_data)
#define SECT_OFF_RODATA(objfile) \
((objfile->sect_index_rodata == -1) \
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 23:22:53 +01:00
? (internal_error (__FILE__, __LINE__, \
_("sect_index_rodata not initialized")), -1) \
: objfile->sect_index_rodata)
#define SECT_OFF_TEXT(objfile) \
((objfile->sect_index_text == -1) \
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 23:22:53 +01:00
? (internal_error (__FILE__, __LINE__, \
_("sect_index_text not initialized")), -1) \
: objfile->sect_index_text)
/* Sometimes the .bss section is missing from the objfile, so we don't
want to die here. Let the users of SECT_OFF_BSS deal with an
uninitialized section index. */
#define SECT_OFF_BSS(objfile) (objfile)->sect_index_bss
/* Answer whether there is more than one object file loaded. */
#define MULTI_OBJFILE_P() (object_files && object_files->next)
/* Reset the per-BFD storage area on OBJ. */
void set_objfile_per_bfd (struct objfile *obj);
/* Return canonical name for OBJFILE.
This is the real file name if the file has been opened.
Otherwise it is the original name supplied by the user. */
Code cleanup: Add objfile_name accessor gdb/ 2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com> Code cleanup: Add objfile_name accessor function. * ada-lang.c (is_known_support_routine): Use objfile_name. * auto-load.c (source_gdb_script_for_objfile) (auto_load_objfile_script): Likewise. * coffread.c (coff_symtab_read, read_one_sym): Likewise. * dbxread.c (dbx_symfile_read): Likewise. * dwarf2-frame.c (dwarf2_build_frame_info): Likewise. * dwarf2loc.c (locexpr_describe_location_piece): Likewise. * dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index) (dw2_symtab_iter_next, dw2_expand_symtabs_matching) (lookup_dwp_signatured_type, lookup_dwo_unit) (dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue) (fixup_go_packaging, process_imported_unit_die, dwarf2_physname) (read_import_statement, create_dwo_cu, open_and_init_dwp_file) (lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read) (dwarf2_record_block_ranges, read_common_block, read_typedef) (read_subrange_type, load_partial_dies, read_partial_die) (read_addr_index_1, read_str_index, dwarf_decode_lines_1) (die_containing_type, build_error_marker_type, lookup_die_type) (follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off) (dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type) (get_DW_AT_signature_type, write_psymtabs_to_index) (save_gdb_index_command): Likewise. * elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read): Likewise. * expprint.c (dump_subexp_body_standard): Likewise. * gdbtypes.c (type_name_no_tag_or_error): Likewise. * jit.c (jit_object_close_impl): Use the objfile field name renamed to original_name. * linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable obj_name, use objfile_name for it, use the variable. (try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile): Use objfile_name. * machoread.c (macho_symtab_read, macho_check_dsym) (macho_symfile_relocate): Likewise. * maint.c (maintenance_translate_address): Likewise. * minidebug.c (find_separate_debug_file_in_section): Likewise. * minsyms.c (install_minimal_symbols): Likewise. * objfiles.c (allocate_objfile): Use the objfile field name renamed to original_name. (filter_overlapping_sections): Use objfile_name. (objfile_name): New function. * objfiles.h (struct objfile): Rename field name to original_name. (objfile_name): New prototype. * printcmd.c (sym_info, address_info): Use objfile_name. * probe.c (parse_probes, collect_probes, compare_probes) (info_probes_for_ops): Likewise. * progspace.c (clone_program_space): Likewise. * psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab) (maintenance_info_psymtabs): Likewise. * python/py-auto-load.c (gdbpy_load_auto_script_for_objfile) (source_section_scripts): Likewise. * python/py-objfile.c (objfpy_get_filename): Likewise. * python/py-progspace.c (pspy_get_filename): Likewise. * solib-aix.c (solib_aix_get_toc_value): Likewise. * solib-som.c (match_main, som_solib_section_offsets): Likewise. * solib.c (solib_read_symbols): Likewise. * stabsread.c (scan_file_globals): Likewise. * stap-probe.c (handle_stap_probe): Likewise. * symfile.c (symbol_file_clear, separate_debug_file_exists) (find_separate_debug_file_by_debuglink): Likewise. (reread_symbols): Likewise. Use the objfile field name renamed to original_name. (allocate_symtab): Use objfile_name. * symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics) (dump_objfile, dump_msymbols, dump_symtab_1) (maintenance_print_msymbols, maintenance_print_objfiles) (maintenance_info_symtabs, maintenance_check_symtabs): Likewise. * target.c (target_translate_tls_address, target_info): Likewise. * xcoffread.c (xcoff_initial_scan): Make variable name const. Use objfile_name.
2013-09-24 15:57:38 +02:00
const char *objfile_name (const struct objfile *objfile);
/* Return the (real) file name of OBJFILE if the file has been opened,
otherwise return NULL. */
const char *objfile_filename (const struct objfile *objfile);
/* Return the name to print for OBJFILE in debugging messages. */
extern const char *objfile_debug_name (const struct objfile *objfile);
/* Return the name of the file format of OBJFILE if the file has been opened,
otherwise return NULL. */
const char *objfile_flavour_name (struct objfile *objfile);
/* Set the objfile's notion of the "main" name and language. */
extern void set_objfile_main_name (struct objfile *objfile,
const char *name, enum language lang);
DWARF: handle non-local references in nested functions GDB's current behavior when dealing with non-local references in the context of nested fuctions is approximative: - code using valops.c:value_of_variable read the first available stack frame that holds the corresponding variable (whereas there can be multiple candidates for this); - code directly relying on read_var_value will instead read non-local variables in frames where they are not even defined. This change adds the necessary context to symbol reads (to get the block they belong to) and to blocks (the static link property, if any) so that GDB can make the proper decisions when dealing with non-local varibale references. gdb/ChangeLog: * ada-lang.c (ada_read_var_value): Add a var_block argument and pass it to default_read_var_value. * block.c (block_static_link): New accessor. * block.h (block_static_link): Declare it. * buildsym.c (finish_block_internal): Add a static_link argument. If there is a static link, associate it to the new block. (finish_block): Add a static link argument and pass it to finish_block_internal. (end_symtab_get_static_block): Update calls to finish_block and to finish_block_internal. (end_symtab_with_blockvector): Update call to finish_block_internal. * buildsym.h: Forward-declare struct dynamic_prop. (struct context_stack): Add a static_link field. (finish_block): Add a static link argument. * c-exp.y: Remove an obsolete comment (evaluation of variables already start from the selected frame, and now they climb *up* the call stack) and propagate the block information to the produced expression. * d-exp.y: Likewise. * f-exp.y: Likewise. * go-exp.y: Likewise. * jv-exp.y: Likewise. * m2-exp.y: Likewise. * p-exp.y: Likewise. * coffread.c (coff_symtab_read): Update calls to finish_block. * dbxread.c (process_one_symbol): Likewise. * xcoffread.c (read_xcoff_symtab): Likewise. * compile/compile-c-symbols.c (convert_one_symbol): Promote the "sym" parameter to struct block_symbol, update its uses and pass its block to calls to read_var_value. (convert_symbol_sym): Update the calls to convert_one_symbol. * compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update call to read_var_value. * dwarf2loc.c (block_op_get_frame_base): New. (dwarf2_block_frame_base_locexpr_funcs): Implement the get_frame_base method. (dwarf2_block_frame_base_loclist_funcs): Likewise. (dwarf2locexpr_baton_eval): Add a frame argument and use it instead of the selected frame in order to evaluate the expression. (dwarf2_evaluate_property): Add a frame argument. Update call to dwarf2_locexpr_baton_eval to provide a frame in available and to handle the absence of address stack. * dwarf2loc.h (dwarf2_evaluate_property): Add a frame argument. * dwarf2read.c (attr_to_dynamic_prop): Add a forward declaration. (read_func_scope): Record any available static link description. Update call to finish_block. (read_lexical_block_scope): Update call to finish_block. * findvar.c (follow_static_link): New. (get_hosting_frame): New. (default_read_var_value): Add a var_block argument. Use get_hosting_frame to handle non-local references. (read_var_value): Add a var_block argument and pass it to the LA_READ_VAR_VALUE method. * gdbtypes.c (resolve_dynamic_range): Update calls to dwarf2_evaluate_property. (resolve_dynamic_type_internal): Likewise. * guile/scm-frame.c (gdbscm_frame_read_var): Update call to read_var_value, passing it the block coming from symbol lookup. * guile/scm-symbol.c (gdbscm_symbol_value): Update call to read_var_value (TODO). * infcmd.c (finish_command_continuation): Update call to read_var_value, passing it the block coming from symbol lookup. * infrun.c (insert_exception_resume_breakpoint): Likewise. * language.h (struct language_defn): Add a var_block argument to the LA_READ_VAR_VALUE method. * objfiles.c (struct static_link_htab_entry): New. (static_link_htab_entry_hash): New. (static_link_htab_entry_eq): New. (objfile_register_static_link): New. (objfile_lookup_static_link): New. (free_objfile): Free the STATIC_LINKS hashed map if needed. * objfiles.h: Include hashtab.h. (struct objfile): Add a static_links field. (objfile_register_static_link): New. (objfile_lookup_static_link): New. * printcmd.c (print_variable_and_value): Update call to read_var_value. * python/py-finishbreakpoint.c (bpfinishpy_init): Likewise. * python/py-frame.c (frapy_read_var): Update call to read_var_value, passing it the block coming from symbol lookup. * python/py-framefilter.c (extract_sym): Add a sym_block parameter and set the pointed value to NULL (TODO). (enumerate_args): Update call to extract_sym. (enumerate_locals): Update calls to extract_sym and to read_var_value. * python/py-symbol.c (sympy_value): Update call to read_var_value (TODO). * stack.c (read_frame_local): Update call to read_var_value. (read_frame_arg): Likewise. (return_command): Likewise. * symtab.h (struct symbol_block_ops): Add a get_frame_base method. (struct symbol): Add a block field. (SYMBOL_BLOCK): New accessor. * valops.c (value_of_variable): Remove frame/block handling and pass the block argument to read_var_value, which does this job now. (value_struct_elt_for_reference): Update calls to read_var_value. (value_of_this): Pass the block found to read_var_value. * value.h (read_var_value): Add a var_block argument. (default_read_var_value): Likewise. gdb/testsuite/ChangeLog: * gdb.base/nested-subp1.exp: New file. * gdb.base/nested-subp1.c: New file. * gdb.base/nested-subp2.exp: New file. * gdb.base/nested-subp2.c: New file. * gdb.base/nested-subp3.exp: New file. * gdb.base/nested-subp3.c: New file.
2015-02-05 17:00:06 +01:00
extern void objfile_register_static_link
(struct objfile *objfile,
const struct block *block,
const struct dynamic_prop *static_link);
extern const struct dynamic_prop *objfile_lookup_static_link
(struct objfile *objfile, const struct block *block);
1999-07-07 22:19:36 +02:00
#endif /* !defined (OBJFILES_H) */