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If objfiles.h is included after bcache.h, then the "bcache" function
will cause a compiler error because "bcache" will be seen as a
function, not a type. Fix this error by using the "struct" keyword.
gdb/ChangeLog
2019-01-22 Tom Tromey <tom@tromey.com>
* objfiles.h (struct objfile_per_bfd_storage): Use "struct"
keyword for bcache.
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This removes class objfile_msymbols in favor of a method on the
objfile.
2019-01-16 Tom Tromey <tom@tromey.com>
* objfiles.h (struct minimal_symbol_iterator): Rename. Move
earlier.
(struct objfile) <msymbols_range>: Move from top level.
<msymbols>: New method.
(class objfile_msymbols): Remove.
* symtab.c (default_collect_symbol_completion_matches_break_on):
Update.
* symmisc.c (dump_msymbols): Update.
* stabsread.c (scan_file_globals): Update.
* objc-lang.c (info_selectors_command, info_classes_command)
(find_methods): Update.
* minsyms.c (find_solib_trampoline_target): Update.
* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Update.
* coffread.c (coff_symfile_read): Update.
* ada-lang.c (ada_lookup_simple_minsym)
(ada_collect_symbol_completion_matches): Update.
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This simplifies the minimal symbol iterator, by using
minimal_symbol_count and just doing a somewhat ordinary array-like
iteration. array_view is nearly usable, except that it is more
convenient for this iterator to return pointers rather than
references.
gdb/ChangeLog
2019-01-16 Tom Tromey <tom@tromey.com>
* objfiles.h (class objfile_msymbols) <iterator>: Change argument
type. Remove no-argument constructor.
<iterator::operator++>: Simplify.
<begin>: Update.
<end>: Use minimal_symbol_count.
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This removes the objfile_psymtabs class in favor of a method on
objfile and on psymtab_storage.
2019-01-16 Tom Tromey <tom@tromey.com>
* objfiles.h (struct objfile) <psymtabs>: New method.
(class objfile_psymtabs): Remove.
* psymtab.h (class psymtab_storage) <partial_symtab_range>: New
typedef.
<range>: New method.
(require_partial_symbols): Change return type.
* psymtab.c (require_partial_symbols)
(psym_expand_symtabs_matching): Update.
* mdebugread.c (parse_partial_symbols): Update.
* dbxread.c (dbx_end_psymtab): Update.
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This removes the objfile_compunits range adapter in favor of using a
method on objfile.
2019-01-15 Tom Tromey <tom@tromey.com>
* symtab.c (lookup_objfile_from_block)
(lookup_symbol_in_objfile_symtabs)
(basic_lookup_transparent_type_1, find_pc_sect_compunit_symtab)
(find_line_symtab, info_sources_command)
(default_collect_symbol_completion_matches_break_on)
(make_source_files_completion_list): Update.
* symmisc.c (print_objfile_statistics, dump_objfile)
(maintenance_print_symbols, maintenance_info_symtabs)
(maintenance_check_symtabs, maintenance_info_line_tables):
Update.
* source.c (select_source_symtab)
(forget_cached_source_info_for_objfile): Update.
* objfiles.h (class objfile_compunits): Remove.
(struct objfile) <compunits_range>: New typedef.
(compunits): New method.
* objfiles.c (objfile_relocate1): Update.
* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Update.
* maint.c (count_symtabs_and_blocks): Update.
* linespec.c (iterate_over_all_matching_symtabs): Update.
* cp-support.c (add_symbol_overload_list_qualified): Update.
* coffread.c (coff_symtab_read): Update.
* ada-lang.c (add_nonlocal_symbols)
(ada_collect_symbol_completion_matches)
(ada_add_global_exceptions): Update.
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This changes the all_objfiles_safe range adapter to be a method on the
program space, and fixes up all the users.
gdb/ChangeLog
2019-01-15 Tom Tromey <tom@tromey.com>
* progspace.h (program_space) <objfiles_safe_range>: New
typedef.
<objfiles_safe>: New method.
* objfiles.h (class all_objfiles_safe): Remove.
* objfiles.c (free_all_objfiles, objfile_purge_solibs): Update.
* jit.c (jit_inferior_exit_hook): Update.
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This changes the all_objfiles range adapter to be a method on the
program space, and fixes up all the users.
gdb/ChangeLog
2019-01-17 Tom Tromey <tom@tromey.com>
* progspace.h (program_space) <objfiles_range>: New typedef.
<objfiles>: New method.
<objfiles_head>: Rename from objfiles.
(object_files): Update.
* guile/scm-progspace.c (gdbscm_progspace_objfiles): Update.
* guile/scm-pretty-print.c
(ppscm_find_pretty_printer_from_objfiles): Update.
* guile/scm-objfile.c (gdbscm_objfiles): Update.
* python/py-xmethods.c (gdbpy_get_matching_xmethod_workers):
Update.
* python/py-progspace.c (pspy_get_objfiles): Update.
* python/py-prettyprint.c (find_pretty_printer_from_objfiles):
Update.
* python/py-objfile.c (objfpy_lookup_objfile_by_name)
(objfpy_lookup_objfile_by_build_id): Update.
* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Update.
* windows-tdep.c (windows_iterate_over_objfiles_in_search_order):
Update.
* symtab.c (iterate_over_symtabs, matching_obj_sections)
(expand_symtab_containing_pc, lookup_objfile_from_block)
(lookup_static_symbol, basic_lookup_transparent_type)
(find_pc_sect_compunit_symtab, find_symbol_at_address)
(find_line_symtab, info_sources_command)
(default_collect_symbol_completion_matches_break_on)
(make_source_files_completion_list, find_main_name): Update.
* symmisc.c (print_symbol_bcache_statistics)
(print_objfile_statistics, maintenance_print_symbols)
(maintenance_print_msymbols, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs)
(maintenance_expand_symtabs, maintenance_info_line_tables):
Update.
* symfile.c (remove_symbol_file_command, overlay_invalidate_all)
(find_pc_overlay, find_pc_mapped_section, list_overlays_command)
(map_overlay_command, unmap_overlay_command)
(simple_overlay_update, expand_symtabs_matching)
(map_symbol_filenames): Update.
* symfile-debug.c (set_debug_symfile): Update.
* spu-tdep.c (spu_overlay_update, spu_objfile_from_frame):
Update.
* source.c (select_source_symtab, forget_cached_source_info):
Update.
* solib.c (solib_read_symbols): Update.
* solib-spu.c (append_ocl_sos): Update.
* psymtab.c (maintenance_print_psymbols)
(maintenance_info_psymtabs, maintenance_check_psymtabs): Update.
* probe.c (parse_probes_in_pspace, find_probe_by_pc): Update.
* printcmd.c (info_symbol_command): Update.
* ppc-linux-tdep.c (ppc_linux_spe_context_inferior_created):
Update.
* objfiles.h (class all_objfiles): Remove.
* objfiles.c (have_partial_symbols, have_full_symbols)
(have_minimal_symbols, qsort_cmp, update_section_map)
(shared_objfile_contains_address_p)
(default_iterate_over_objfiles_in_search_order): Update.
* objc-lang.c (info_selectors_command, info_classes_command)
(find_methods): Update.
* minsyms.c (find_solib_trampoline_target): Update.
* maint.c (maintenance_info_sections)
(maintenance_translate_address, count_symtabs_and_blocks):
Update.
* main.c (captured_main_1): Update.
* linux-thread-db.c (try_thread_db_load_from_pdir)
(has_libpthread): Update.
* linespec.c (iterate_over_all_matching_symtabs)
(search_minsyms_for_name): Update.
* jit.c (jit_find_objf_with_entry_addr): Update.
* hppa-tdep.c (find_unwind_entry)
(hppa_lookup_stub_minimal_symbol): Update.
* gcore.c (gcore_create_callback, objfile_find_memory_regions):
Update.
* elfread.c (elf_gnu_ifunc_resolve_by_cache)
(elf_gnu_ifunc_resolve_by_got): Update.
* dwarf2-frame.c (dwarf2_frame_find_fde): Update.
* dwarf-index-write.c (save_gdb_index_command): Update.
* cp-support.c (add_symbol_overload_list_qualified): Update.
* breakpoint.c (create_overlay_event_breakpoint)
(create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint): Update.
* blockframe.c (find_pc_partial_function): Update.
* ada-lang.c (ada_lookup_simple_minsym, add_nonlocal_symbols)
(ada_collect_symbol_completion_matches)
(ada_add_global_exceptions): Update.
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Previously, the psymtab obstack was just a pointer to the objfile
obstack. This patch changes psymtabs to use their own obstack,
instead. A gdb::optional is used to avoid unnecessary allocation when
the obstack is not needed.
After this patch, the psymtab code lifetime model is that, in the core
psymtab code, objects allocated on the psymtab obstack may point to
other such objects, or to objects on the per-BFD obstack -- but never
to the objfile obstack.
Note however that this invariant is only obeyed the core psymtab code,
and even there not quite fully: there is still a link from the psymtab
to the full symtab.
Symbol readers are free to work however they like; and in particular,
even after this patch, in practice all symbol readers violate this
invariant via the read_symtab_private field.
gdb/ChangeLog
2019-01-10 Tom Tromey <tom@tromey.com>
* objfiles.h (objfile::reset_psymtabs): Update.
* objfiles.c (objfile::objfile): Update.
* psymtab.h (psymtab_storage::obstack): Update.
(psymtab_storage::m_obstack): Use gdb::optional.
(class psymtab_storage): Update comment. Remove objfile
parameter.
* psymtab.c (psymtab_storage::psymtab_storage): Update.
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This introduces a new method, objfile::reset_psymtabs, and changes
reread_symbols to use it. This method simply destroys the existing
partial symbols and recreates the psymtab_storage object.
This patch fixes a latent bug -- namely, that reread_symbols should
clear objfile::psymbol_map, but does not. I can submit that
separately if you'd prefer.
gdb/ChangeLog
2019-01-10 Tom Tromey <tom@tromey.com>
* symfile.c (reread_symbols): Call objfile->reset_psymtabs.
* objfiles.h (objfile::reset_psymtabs): New method.
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This introduces a new psymtab_storage class, which holds all
psymbol-related objects that are independent of the objfile. (This
latter contraint explains why psymbol_map was not moved; though this
could still be done with some work.)
This patch does not yet change where psymtab allocation is done --
that comes later. This just wraps everything in a single object to
make further transformations simpler.
Note that a shared_ptr is used to link from the objfile to the
psymtab_storage object. The end goal here is to allow a given symbol
reader to simply attach to the psymtab_storage object to the BFD, then
reuse it in later invocations; shared_ptr makes this simple to reason
about.
gdb/ChangeLog
2019-01-10 Tom Tromey <tom@tromey.com>
* symmisc.c (print_symbol_bcache_statistics): Update.
(print_objfile_statistics): Update.
* symfile.c (reread_symbols): Update.
* psymtab.h (class psymtab_storage): New.
* psymtab.c (psymtab_storage): New constructor.
(~psymtab_storage): New destructor.
(require_partial_symbols): Update.
(ALL_OBJFILE_PSYMTABS_REQUIRED): Rewrite.
(find_pc_sect_psymtab, find_pc_sect_psymbol)
(match_partial_symbol, lookup_partial_symbol, dump_psymtab)
(psym_dump, recursively_search_psymtabs, psym_has_symbols)
(psym_find_compunit_symtab_by_address, sort_pst_symbols)
(start_psymtab_common, end_psymtab_common)
(add_psymbol_to_bcache, add_psymbol_to_list, init_psymbol_list)
(allocate_psymtab): Update.
(psymtab_storage::discard_psymtab): Rename from discard_psymtab.
Update.
(dump_psymtab_addrmap, maintenance_print_psymbols)
(maintenance_check_psymtabs): Update.
(class objfile_psymtabs): Move to objfiles.h.
* psympriv.h (discard_psymtab): Now inline.
(psymtab_discarder::psymtab_discarder): Update.
(psymtab_discarder::~psymtab_discarder): Update.
(ALL_OBJFILE_PSYMTABS): Rewrite.
* objfiles.h (struct objfile) <psymtabs, psymtabs_addrmap,
free_psymtabs, psymbol_cache, global_psymbols, static_psymbols>:
Remove fields.
<partial_symtabs>: New field.
(class objfile_psymtabs): Move from psymtab.h. Update.
* objfiles.c (objfile::objfile): Initialize partial_symtabs, not
psymbol_cache.
(objfile::~objfile): Don't destroy psymbol_cache.
* mdebugread.c (parse_partial_symbols): Update.
* dwarf2read.c (create_addrmap_from_index)
(create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab)
(process_psymtab_comp_unit_reader, dwarf2_build_psymtabs_hard)
(add_partial_subprogram, dwarf2_ranges_read): Update.
* dwarf-index-write.c (write_address_map)
(write_one_signatured_type, recursively_write_psymbols)
(class debug_names, class debug_names, write_psymtabs_to_index):
Update.
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This removes the ALL_OBJSECTIONS macro, replacing its uses with ranged
for loops.
The special code in this macro for noticing a "break" from the inner
loop was only needed in a single place; so rather than try to
replicate this, I've simply replaced that use with a "goto".
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symfile.c (overlay_invalidate_all, find_pc_overlay)
(find_pc_mapped_section, list_overlays_command)
(map_overlay_command, unmap_overlay_command)
(simple_overlay_update): Use all_objfiles.
* spu-tdep.c (spu_overlay_update): Use all_objfiles.
* printcmd.c (info_symbol_command): Use all_objfiles.
* objfiles.h (ALL_OBJSECTIONS): Remove.
* maint.c (maintenance_translate_address): Use all_objfiles.
* gcore.c (gcore_create_callback): Use all_objfiles.
(objfile_find_memory_regions): Likewise.
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This removes the ALL_OBJFILES and ALL_FILETABS macros, replacing them
with ranged for loops.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symtab.c (find_line_symtab, info_sources_command)
(make_source_files_completion_list): Use objfile_compunits.
* source.c (select_source_symtab): Use objfile_compunits.
* objfiles.h (struct objfile): Update comment.
(ALL_OBJFILES): Remove.
(ALL_FILETABS): Remove.
* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Use
objfile_compunits.
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This removes ALL_OBJFILE_FILETABS, replacing its uses with ranged for
loops.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symmisc.c (print_objfile_statistics, dump_objfile)
(maintenance_print_symbols): Use compunit_filetabs.
* source.c (forget_cached_source_info_for_objfile): Use
compunit_filetabs.
* objfiles.h (ALL_OBJFILE_FILETABS): Remove.
(ALL_FILETABS): Use compunit_filetabs.
* objfiles.c (objfile_relocate1): Use compunit_filetabs.
* coffread.c (coff_symtab_read): Use compunit_filetabs.
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This removes ALL_COMPUNIT_FILETABS, replacing its uses with ranged for
loops.
Because this is still used in the ALL_OBJFILE_FILETABS macro, in some
places a declaration had to be removed or renamed to avoid shadowing.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symtab.h (ALL_COMPUNIT_FILETABS): Remove.
(compunit_filetabs): New.
* symtab.c (iterate_over_some_symtabs, find_pc_sect_line): Use
compunit_filetabs.
(info_sources_command, make_source_files_completion_list): Remove
declaration.
* symmisc.c (print_objfile_statistics, dump_objfile)
(maintenance_print_symbols): Remove declaration.
(maintenance_info_symtabs): Use compunit_filetabs.
(maintenance_info_line_tables): Likewise.
* source.c (select_source_symtab): Change local variable name.
(forget_cached_source_info_for_objfile): Remove declaration.
* objfiles.h (ALL_OBJFILE_FILETABS): Use compunit_filetabs.
* objfiles.c (objfile_relocate1): Remove declaration.
* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Remove
declaration.
* maint.c (count_symtabs_and_blocks): Use compunit_filetabs.
* coffread.c (coff_symtab_read): Remove declaration.
* buildsym.c (buildsym_compunit::end_symtab_with_blockvector): Use
compunit_filetabs.
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This removes the ALL_COMPUNITS, replacing its uses with two nested
ranged for loops.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symtab.c (lookup_objfile_from_block)
(find_pc_sect_compunit_symtab, search_symbols)
(default_collect_symbol_completion_matches_break_on): Use
objfile_compunits.
* objfiles.h (ALL_COMPUNITS): Remove.
* maint.c (count_symtabs_and_blocks): Use objfile_compunits.
* cp-support.c (add_symbol_overload_list_qualified): Use
objfile_compunits.
* ada-lang.c (ada_collect_symbol_completion_matches)
(ada_add_global_exceptions): Use objfile_compunits.
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This removes ALL_OBJFILE_COMPUNITS, replacing its uses with ranged for
loops. Because ALL_COMPUNITS is also updated, in some places a
declaration must be deleted to avoid shadowing.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* source.c (select_source_symtab)
(forget_cached_source_info_for_objfile): Remove declaration.
* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Remove
declaration.
* maint.c (count_symtabs_and_blocks): Remove declaration.
* cp-support.c (add_symbol_overload_list_qualified): Remove
declaration.
* coffread.c (coff_symtab_read): Remove declaration.
* symtab.c (lookup_symbol_in_objfile_symtabs)
(basic_lookup_transparent_type_1): Use objfile_compunits.
(lookup_objfile_from_block, find_pc_sect_compunit_symtab)
(info_sources_command, search_symbols)
(default_collect_symbol_completion_matches_break_on)
(make_source_files_completion_list): Remove declaration.
* ada-lang.c (add_nonlocal_symbols): Use objfile_compunits.
(ada_collect_symbol_completion_matches)
(ada_add_global_exceptions): Remove declaration.
* linespec.c (iterate_over_all_matching_symtabs): Use
objfile_compunits.
* objfiles.h (ALL_OBJFILE_COMPUNITS): Remove.
(class objfile_compunits): New.
(ALL_COMPUNITS): Use objfile_compunits.
* symmisc.c (print_objfile_statistics, maintenance_info_symtabs)
(maintenance_check_symtabs, maintenance_info_line_tables): Use
objfile_compunits.
* objfiles.c (objfile_relocate1): Use objfile_compunits.
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This removes the ALL_MSYMBOLS and ALL_OBJFILE_MSYMBOLS macros,
replacing their uses with ranged for loops.
In a couple of spots, a new declaration was needed in order to work
around shadowing; these are just temporary and are removed in a
subsequent patch.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* symtab.c (search_symbols)
(default_collect_symbol_completion_matches_break_on): Use
objfile_msymbols.
* ada-lang.c (ada_lookup_simple_minsym)
(ada_collect_symbol_completion_matches): Use objfile_msymbols.
* minsyms.c (find_solib_trampoline_target): Use objfile_msymbols.
* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Use
objfile_msymbols.
* coffread.c (coff_symfile_read): Use objfile_msymbols.
* symmisc.c (dump_msymbols): Use objfile_msymbols.
* objc-lang.c (find_methods): Use objfile_msymbols.
(info_selectors_command, info_classes_command): Likewise.
* stabsread.c (scan_file_globals): Use objfile_msymbols.
* objfiles.h (class objfile_msymbols): New.
(ALL_OBJFILE_MSYMBOLS): Remove.
(ALL_MSYMBOLS): Remove.
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This removes the ALL_OBJFILES_SAFE macro, replacing the uses with
ranged for loops.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* common/next-iterator.h (next_adapter): Add Iterator template
parameter.
* objfiles.h (ALL_OBJFILES_SAFE): Remove.
(class all_objfiles_safe): New.
* jit.c (jit_inferior_exit_hook): Use all_objfiles_safe.
* objfiles.c (put_objfile_before): Update comment.
(add_separate_debug_objfile): Likewise.
(free_all_objfiles): Use all_objfiles_safe.
(objfile_purge_solibs): Likewise.
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This removes the ALL_PSPACE_OBJFILES macro in favor of ranged for
loops.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* probe.c (parse_probes_in_pspace): Use all_objfiles.
* guile/scm-progspace.c (gdbscm_progspace_objfiles): Use
all_objfiles.
* objfiles.h (ALL_PSPACE_OBJFILES): Remove.
* symmisc.c (print_symbol_bcache_statistics)
(print_objfile_statistics, maintenance_print_objfiles)
(maintenance_info_symtabs, maintenance_check_symtabs)
(maintenance_expand_symtabs, maintenance_info_line_tables): Use
all_objfiles.
* source.c (forget_cached_source_info): Use all_objfiles.
* symfile-debug.c (set_debug_symfile): Use all_objfiles.
* elfread.c (elf_gnu_ifunc_resolve_by_cache)
(elf_gnu_ifunc_resolve_by_got): Use all_objfiles.
* objfiles.c (update_section_map): Use all_objfiles.
(shared_objfile_contains_address_p): Likewise.
* psymtab.c (maintenance_info_psymtabs): Use all_objfiles.
* python/py-progspace.c (pspy_get_objfiles): Use all_objfiles.
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This introduces an iterable object which can be used to iterate over
objfiles. It also introduces a generic "next_iterator", which can be
used to iterate over types that have a "next" field.
gdb/ChangeLog
2019-01-09 Tom Tromey <tom@tromey.com>
* common/next-iterator.h: New file.
* objfiles.h (class all_objfiles): New.
(struct objfile_iterator): New.
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This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
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This removes resume_section_map_updates_cleanup, replacing it with a
scoped_restore.
Tested by the buildbot.
gdb/ChangeLog
2018-06-18 Tom Tromey <tom@tromey.com>
* objfiles.h (inhibit_section_map_updates): Update.
(resume_section_map_updates, resume_section_map_updates_cleanup):
Remove.
* solib-svr4.c (svr4_handle_solib_event): Update.
* objfiles.c (inhibit_section_map_updates): Return
scoped_restore_tmpl<int>.
(resume_section_map_updates, resume_section_map_updates_cleanup):
Remove.
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gdb/ChangeLog:
Update copyright year range in all GDB files
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In Rust, virtual tables work a bit differently than they do in C++. In
C++, as you know, they are connected to a particular class hierarchy.
Rust, instead, can generate a virtual table for potentially any type --
in fact, one such virtual table for each trait (a trait is similar to an
abstract class or to a Java interface) that a type implements.
Objects that are referenced via a trait can't currently be inspected by
gdb. This patch implements the Rust equivalent of "set print object".
gdb relies heavily on the C++ ABI to decode virtual tables; primarily to
make "set print object" work; but also "info vtbl". However, Rust does
not currently have a specified ABI, so this approach seems unwise to
emulate.
Instead, I've changed the Rust compiler to emit some DWARF that
describes trait objects (previously their internal structure was
opaque), vtables (currently just a size -- but I hope to expand this in
the future), and the concrete type for which a vtable was emitted.
The concrete type is expressed as a DW_AT_containing_type on the
vtable's type. This is a small extension to DWARF.
This patch adds a new entry to quick_symbol_functions to return the
symtab that holds a data address. Previously there was no way in gdb to
look up a full (only minimal) non-text symbol by address. The psymbol
implementation of this method works by lazily filling in a map that is
added to the objfile. This avoids slowing down psymbol reading for a
feature that is likely to not be used too frequently.
I did not update .gdb_index. My thinking here is that the DWARF 5
indices will obsolete .gdb_index soon-ish, meaning that adding a new
feature to them is probably wasted work. If necessary I can update the
DWARF 5 index code when it lands in gdb.
Regression tested on x86-64 Fedora 25.
2017-11-17 Tom Tromey <tom@tromey.com>
* symtab.h (struct symbol) <is_rust_vtable>: New member.
(struct rust_vtable_symbol): New.
(find_symbol_at_address): Declare.
* symtab.c (find_symbol_at_address): New function.
* symfile.h (struct quick_symbol_functions)
<find_compunit_symtab_by_address>: New member.
* symfile-debug.c (debug_qf_find_compunit_symtab_by_address): New
function.
(debug_sym_quick_functions): Link to
debug_qf_find_compunit_symtab_by_address.
* rust-lang.c (rust_get_trait_object_pointer): New function.
(rust_evaluate_subexp) <case UNOP_IND>: New case. Call
rust_get_trait_object_pointer.
* psymtab.c (psym_relocate): Clear psymbol_map.
(psym_fill_psymbol_map, psym_find_compunit_symtab_by_address): New
functions.
(psym_functions): Link to psym_find_compunit_symtab_by_address.
* objfiles.h (struct objfile) <psymbol_map>: New member.
* dwarf2read.c (dwarf2_gdb_index_functions): Update.
(process_die) <DW_TAG_variable>: New case. Call read_variable.
(rust_containing_type, read_variable): New functions.
2017-11-17 Tom Tromey <tom@tromey.com>
* gdb.rust/traits.rs: New file.
* gdb.rust/traits.exp: New file.
|
|
Summary:
- This is preparation for supporting wild name matching on C++ too.
- This is also preparation for TAB-completion fixes.
- Makes symbol name matching (think strcmp_iw) be based on a per-language method.
- Merges completion and non-completion name comparison (think
language_ops::la_get_symbol_name_cmp generalized).
- Avoid re-hashing lookup name multiple times
- Centralizes preparing a name for lookup (Ada name encoding / C++ Demangling),
both completion and non-completion.
- Fixes Ada latent bug with verbatim name matches in expressions
- Makes ada-lang.c use common|symtab.c completion code a bit more.
Ada's wild matching basically means that
"(gdb) break foo"
will find all methods named "foo" in all packages. Translating to
C++, it's roughly the same as saying that "break klass::method" sets
breakpoints on all "klass::method" methods of all classes, no matter
the namespace. A following patch will teach GDB about fullname vs
wild matching for C++ too. This patch is preparatory work to get
there.
Another idea here is to do symbol name matching based on the symbol
language's algorithm. I.e., avoid dependency on current language set.
This allows for example doing
(gdb) b foo::bar< int > (<tab>
and having gdb name match the C++ symbols correctly even if the
current language is C or Assembly (or Rust, or Ada, or ...), which can
easily happen if you step into an Assembly/C runtime library frame.
By encapsulating all the information related to a lookup name in a
class, we can also cache hash computation for a given language in the
lookup name object, to avoid recomputing it over and over.
Similarly, because we don't really know upfront which languages the
lookup name will be matched against, for each language we store the
lookup name transformed into a search name. E.g., for C++, that means
demangling the name. But for Ada, it means encoding the name. This
actually forces us to centralize all the different lookup name
encoding in a central place, resulting in clearer code, IMO. See
e.g., the new ada_lookup_name_info class.
The lookup name -> symbol search name computation is also done only
once per language.
The old language->la_get_symbol_name_cmp / symbol_name_cmp_ftype are
generalized to work with both completion, and normal symbol look up.
At some point early on, I had separate completion vs non-completion
language vector entry points, but a single method ends up being better
IMO for simplifying things -- the more we merge the completion /
non-completion name lookup code paths, the less changes for bugs
causing completion vs normal lookup finding different symbols.
The ada-lex.l change is necessary because when doing
(gdb) p <UpperCase>
then the name that is passed to write_ write_var_or_type ->
ada_lookup_symbol_list misses the "<>", i.e., it's just "UpperCase",
and we end up doing a wild match against "UpperCase" lowercased by
ada_lookup_name_info's constructor. I.e., "uppercase" wouldn't ever
match "UpperCase", and the symbol lookup fails.
This wouldn't cause any regression in the testsuite, but I added a new
test that would pass before the patch and fail after, if it weren't
for that fix.
This is latent bug that happens to go unnoticed because that
particular path was inconsistent with the rest of Ada symbol lookup by
not lowercasing the lookup name.
Ada's symbol_completion_add is deleted, replaced by using common
code's completion_list_add_name. To make the latter work for Ada, we
needed to add a new output parameter, because Ada wants to return back
a custom completion candidates that are not the symbol name.
With this patch, minimal symbol demangled name hashing is made
consistent with regular symbol hashing. I.e., it now goes via the
language vector's search_name_hash method too, as I had suggested in a
previous patch.
dw2_expand_symtabs_matching / .gdb_index symbol names were a
challenge. The problem is that we have no way to telling what is the
language of each symbol name found in the index, until we expand the
corresponding full symbol, which is off course what we're trying to
avoid. Language information is simply not considered in the index
format... Since the symbol name hashing and comparison routines are
per-language, we now have a problem. The patch sorts this out by
matching each name against all languages. This is inneficient, and
indeed slows down completion several times. E.g., with:
$ cat script.cmd
set pagination off
set $count = 0
while $count < 400
complete b string_prin
printf "count = %d\n", $count
set $count = $count + 1
end
$ time gdb --batch -q ./gdb-with-index -ex "source script-string_printf.cmd"
I get, before patch (-O2, x86-64):
real 0m1.773s
user 0m1.737s
sys 0m0.040s
While after patch (-O2, x86-64):
real 0m9.843s
user 0m9.482s
sys 0m0.034s
However, the following patch will optimize this, and will actually
make this use case faster compared to the "before patch" above:
real 0m1.321s
user 0m1.285s
sys 0m0.039s
gdb/ChangeLog:
2017-11-08 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_encode): Rename to ..
(ada_encode_1): ... this. Add throw_errors parameter and handle
it.
(ada_encode): Reimplement.
(match_name): Delete, folded into full_name.
(resolve_subexp): No longer pass the encoded name to
ada_lookup_symbol_list.
(should_use_wild_match): Delete.
(name_match_type_from_name): New.
(ada_lookup_simple_minsym): Use lookup_name_info and the
language's symbol_name_matcher_ftype.
(add_symbols_from_enclosing_procs, ada_add_local_symbols)
(ada_add_block_renamings): Adjust to use lookup_name_info.
(ada_lookup_name): New.
(add_nonlocal_symbols, ada_add_all_symbols)
(ada_lookup_symbol_list_worker, ada_lookup_symbol_list)
(ada_iterate_over_symbols): Adjust to use lookup_name_info.
(ada_name_for_lookup): Delete.
(ada_lookup_encoded_symbol): Construct a verbatim name.
(wild_match): Reverse sense of return type. Use bool.
(full_match): Reverse sense of return type. Inline bits of old
match_name here.
(ada_add_block_symbols): Adjust to use lookup_name_info.
(symbol_completion_match): Delete, folded into...
(ada_lookup_name_info::matches): ... .this new method.
(symbol_completion_add): Delete.
(ada_collect_symbol_completion_matches): Add name_match_type
parameter. Adjust to use lookup_name_info and
completion_list_add_name.
(get_var_value, ada_add_global_exceptions): Adjust to use
lookup_name_info.
(ada_get_symbol_name_cmp): Delete.
(do_wild_match, do_full_match): New functions.
(ada_lookup_name_info::ada_lookup_name_info): New method.
(ada_symbol_name_matches, ada_get_symbol_name_matcher): New
functions.
(ada_language_defn): Install ada_get_symbol_name_matcher.
* ada-lex.l (processId): If name starts with '<', copy it
verbatim.
* block.c (block_iter_match_step, block_iter_match_first)
(block_iter_match_next, block_lookup_symbol)
(block_lookup_symbol_primary, block_find_symbol): Adjust to use
lookup_name_info.
* block.h (block_iter_match_first, block_iter_match_next)
(ALL_BLOCK_SYMBOLS_WITH_NAME): Adjust to use lookup_name_info.
* c-lang.c (c_language_defn, cplus_language_defn)
(asm_language_defn, minimal_language_defn): Adjust comments to
refer to la_get_symbol_name_matcher.
* completer.c (complete_files_symbols)
(collect_explicit_location_matches, symbol_completer): Pass a
symbol_name_match_type down.
* completer.h (class completion_match, completion_match_result):
New classes.
(completion_tracker::reset_completion_match_result): New method.
(completion_tracker::m_completion_match_result): New field.
* cp-support.c (make_symbol_overload_list_block): Adjust to use
lookup_name_info.
(cp_fq_symbol_name_matches, cp_get_symbol_name_matcher): New
functions.
* cp-support.h (cp_get_symbol_name_matcher): New declaration.
* d-lang.c: Adjust comments to refer to
la_get_symbol_name_matcher.
* dictionary.c (dict_vector) <iter_match_first, iter_match_next>:
Adjust to use lookup_name_info.
(dict_iter_match_first, dict_iter_match_next)
(iter_match_first_hashed, iter_match_next_hashed)
(iter_match_first_linear, iter_match_next_linear): Adjust to work
with a lookup_name_info.
* dictionary.h (dict_iter_match_first, dict_iter_match_next):
Likewise.
* dwarf2read.c (dw2_lookup_symbol): Adjust to use lookup_name_info.
(dw2_map_matching_symbols): Adjust to use symbol_name_match_type.
(gdb_index_symbol_name_matcher): New class.
(dw2_expand_symtabs_matching) Adjust to use lookup_name_info and
gdb_index_symbol_name_matcher. Accept a NULL symbol_matcher.
* f-lang.c (f_collect_symbol_completion_matches): Adjust to work
with a symbol_name_match_type.
(f_language_defn): Adjust comments to refer to
la_get_symbol_name_matcher.
* go-lang.c (go_language_defn): Adjust comments to refer to
la_get_symbol_name_matcher.
* language.c (default_symbol_name_matcher)
(language_get_symbol_name_matcher): New functions.
(unknown_language_defn, auto_language_defn): Adjust comments to
refer to la_get_symbol_name_matcher.
* language.h (symbol_name_cmp_ftype): Delete.
(language_defn) <la_collect_symbol_completion_matches>: Add match
type parameter.
<la_get_symbol_name_cmp>: Delete field.
<la_get_symbol_name_matcher>: New field.
<la_iterate_over_symbols>: Adjust to use lookup_name_info.
(default_symbol_name_matcher, language_get_symbol_name_matcher):
Declare.
* linespec.c (iterate_over_all_matching_symtabs)
(iterate_over_file_blocks): Adjust to use lookup_name_info.
(find_methods): Add language parameter, and use lookup_name_info
and the language's symbol_name_matcher_ftype.
(linespec_complete_function): Adjust.
(lookup_prefix_sym): Use lookup_name_info.
(add_all_symbol_names_from_pspace): Adjust.
(find_superclass_methods): Add language parameter and pass it
down.
(find_method): Pass symbol language down.
(find_linespec_symbols): Don't demangle or Ada encode here.
(search_minsyms_for_name): Add lookup_name_info parameter.
(add_matching_symbols_to_info): Add name_match_type parameter.
Use lookup_name_info.
* m2-lang.c (m2_language_defn): Adjust comments to refer to
la_get_symbol_name_matcher.
* minsyms.c: Include <algorithm>.
(add_minsym_to_demangled_hash_table): Remove table parameter and
add objfile parameter. Use search_name_hash, and add language to
demangled languages vector.
(struct found_minimal_symbols): New struct.
(lookup_minimal_symbol_mangled, lookup_minimal_symbol_demangled):
New functions.
(lookup_minimal_symbol): Adjust to use them. Don't canonicalize
input names here. Use lookup_name_info instead. Lookup up
demangled names once for each language in the demangled names
vector.
(iterate_over_minimal_symbols): Use lookup_name_info. Lookup up
demangled names once for each language in the demangled names
vector.
(build_minimal_symbol_hash_tables): Adjust.
* minsyms.h (iterate_over_minimal_symbols): Adjust to pass down a
lookup_name_info.
* objc-lang.c (objc_language_defn): Adjust comment to refer to
la_get_symbol_name_matcher.
* objfiles.h: Include <vector>.
(objfile_per_bfd_storage) <demangled_hash_languages>: New field.
* opencl-lang.c (opencl_language_defn): Adjust comment to refer to
la_get_symbol_name_matcher.
* p-lang.c (pascal_language_defn): Adjust comment to refer to
la_get_symbol_name_matcher.
* psymtab.c (psym_lookup_symbol): Use lookup_name_info.
(match_partial_symbol): Use symbol_name_match_type,
lookup_name_info and psymbol_name_matches.
(lookup_partial_symbol): Use lookup_name_info.
(map_block): Use symbol_name_match_type and lookup_name_info.
(psym_map_matching_symbols): Use symbol_name_match_type.
(psymbol_name_matches): New.
(recursively_search_psymtabs): Use lookup_name_info and
psymbol_name_matches. Rename 'kind' parameter to 'domain'.
(psym_expand_symtabs_matching): Use lookup_name_info. Rename
'kind' parameter to 'domain'.
* rust-lang.c (rust_language_defn): Adjust comment to refer to
la_get_symbol_name_matcher.
* symfile-debug.c (debug_qf_map_matching_symbols)
(debug_qf_map_matching_symbols): Use symbol_name_match_type.
(debug_qf_expand_symtabs_matching): Use lookup_name_info.
* symfile.c (expand_symtabs_matching): Use lookup_name_info.
* symfile.h (quick_symbol_functions) <map_matching_symbols>:
Adjust to use symbol_name_match_type.
<expand_symtabs_matching>: Adjust to use lookup_name_info.
(expand_symtabs_matching): Adjust to use lookup_name_info.
* symmisc.c (maintenance_expand_symtabs): Use
lookup_name_info::match_any ().
* symtab.c (symbol_matches_search_name): New.
(eq_symbol_entry): Adjust to use lookup_name_info and the
language's matcher.
(demangle_for_lookup_info::demangle_for_lookup_info): New.
(lookup_name_info::match_any): New.
(iterate_over_symbols, search_symbols): Use lookup_name_info.
(compare_symbol_name): Add language, lookup_name_info and
completion_match_result parameters, and use them.
(completion_list_add_name): Make extern. Add language and
lookup_name_info parameters. Use them.
(completion_list_add_symbol, completion_list_add_msymbol)
(completion_list_objc_symbol): Add lookup_name_info parameters and
adjust. Pass down language.
(completion_list_add_fields): Add lookup_name_info parameters and
adjust. Pass down language.
(add_symtab_completions): Add lookup_name_info parameters and
adjust.
(default_collect_symbol_completion_matches_break_on): Add
name_match_type parameter, and use it. Use lookup_name_info.
(default_collect_symbol_completion_matches)
(collect_symbol_completion_matches): Add name_match_type
parameter, and pass it down.
(collect_symbol_completion_matches_type): Adjust.
(collect_file_symbol_completion_matches): Add name_match_type
parameter, and use lookup_name_info.
* symtab.h: Include <string> and "common/gdb_optional.h".
(enum class symbol_name_match_type): New.
(class ada_lookup_name_info): New.
(struct demangle_for_lookup_info): New.
(class lookup_name_info): New.
(symbol_name_matcher_ftype): New.
(SYMBOL_MATCHES_SEARCH_NAME): Use symbol_matches_search_name.
(symbol_matches_search_name): Declare.
(MSYMBOL_MATCHES_SEARCH_NAME): Delete.
(default_collect_symbol_completion_matches)
(collect_symbol_completion_matches)
(collect_file_symbol_completion_matches): Add name_match_type
parameter.
(iterate_over_symbols): Use lookup_name_info.
(completion_list_add_name): Declare.
* utils.c (enum class strncmp_iw_mode): Moved to utils.h.
(strncmp_iw_with_mode): Now extern.
* utils.h (enum class strncmp_iw_mode): Moved from utils.c.
(strncmp_iw_with_mode): Declare.
gdb/testsuite/ChangeLog:
2017-11-08 Pedro Alves <palves@redhat.com>
* gdb.ada/complete.exp (p <Exported_Capitalized>): New test.
(p Exported_Capitalized): New test.
(p exported_capitalized): New test.
|
|
This replaces make_cleanup_free_objfile with std::unique_ptr.
gdb/ChangeLog
2017-11-04 Tom Tromey <tom@tromey.com>
* objfiles.c (do_free_objfile_cleanup): Remove.
* compile/compile-object-load.c (compile_object_load): Update.
* objfiles.h (make_cleanup_free_objfile): Remove.
|
|
psymbol_allocation_list is basically a vector implementation. We can
replace it with an std::vector, now that objfile has been C++-ified.
I sent this to the buildbot, there are a few suspicious failures, but
I don't think they are related to this patch. For example on powerpc:
new FAIL: gdb.base/catch-syscall.exp: execve: syscall execve has returned
new FAIL: gdb.base/catch-syscall.exp: execve: continue to main
new FAIL: gdb.base/catch-syscall.exp: execve: continue until exit
I get the same failures when testing manually on gcc112, without this
patch.
gdb/ChangeLog:
* objfiles.h: Don't include symfile.h.
(struct partial_symbol): Remove forward-declaration.
(struct objfile) <global_psymbols, static_psymbols>: Change type
to std::vector<partial_symbol *>.
* objfiles.c (objfile::objfile): Don't memset those fields.
(objfile::~objfile): Don't free those fields.
* psympriv.h (struct psymbol_allocation_list): Remove
forward-declaration.
(add_psymbol_to_list): Change psymbol_allocation_list parameter
to std::vector.
(start_psymtab_common): Change parameters to std::vector.
* psymtab.c: Include algorithm.
(require_partial_symbols): Call shrink_to_fit.
(find_pc_sect_psymbol): Adjust to vector change.
(match_partial_symbol): Likewise.
(lookup_partial_symbol): Likewise.
(psym_relocate): Likewise.
(dump_psymtab): Likewise.
(recursively_search_psymtabs): Likewise.
(compare_psymbols): Remove.
(sort_pst_symbols): Adjust to vector change.
(start_psymtab_common): Likewise.
(end_psymtab_common): Likewise.
(psymbol_bcache_full): De-constify return value.
(add_psymbol_to_bcache): Likewise.
(extend_psymbol_list): Remove.
(append_psymbol_to_list): Adjust to vector change.
(add_psymbol_to_list): Likewise.
(init_psymbol_list): Likewise.
(maintenance_info_psymtabs): Likewise.
(maintenance_check_psymtabs): Likewise.
* symfile.h (struct psymbol_allocation_list): Remove.
* symfile.c (reread_symbols): Adjust to vector change.
* dbxread.c (start_psymtab): Change type of parameters.
(dbx_symfile_read): Adjust to vector change.
(read_dbx_symtab): Likewise.
(start_psymtab): Change type of parameters.
* dwarf2read.c (dwarf2_build_psymtabs): Adjust to vector change.
(create_partial_symtab): Likewise.
(add_partial_symbol): Likewise.
(write_one_signatured_type): Likewise.
(recursively_write_psymbols): Likewise.
* mdebugread.c (parse_partial_symbols): Likewise.
* xcoffread.c (xcoff_start_psymtab): Change type of parameters.
(scan_xcoff_symtab): Adjust to vector change.
(xcoff_initial_scan): Likewise.
|
|
This changes objfiles to use new and delete rather than xmalloc and
free. Simon noticed that it uses a non-POD and so shouldn't be
allocated with XCNEW; and I wanted to be able to use another non-POD as
a member; this patch is the result.
Regression tested by the buildbot.
2017-10-13 Tom Tromey <tom@tromey.com>
* compile/compile-object-run.c (do_module_cleanup): Use delete.
* solib.c (update_solib_list, reload_shared_libraries_1): Use
delete.
* symfile.c (symbol_file_add_with_addrs): Use new.
(symbol_file_add_separate): Update comment.
(syms_from_objfile_1, remove_symbol_file_command): Use delete.
* jit.c (jit_object_close_impl): Use new.
(jit_unregister_code): Use delete.
* objfiles.c (objfile::objfile): Rename from allocate_objfile.
(~objfile): Rename from free_objfile.
(free_objfile_separate_debug, do_free_objfile_cleanup)
(free_all_objfiles, objfile_purge_solibs): Use delete.
* objfiles.h (struct objfile): Add constructor and destructor.
Use DISABLE_COPY_AND_ASSIGN. Add initializers to data members.
(allocate_objfile, free_objfile): Don't declare.
(struct objstats): Add initializers.
|
|
A following patch will want to add a std::vector to
objfile_per_bfd_storage. That makes it non-trivially
constructible/destructible. Since objfile_per_bfd_storage objects are
allocated on an obstack, we need to call their ctors/dtors manually.
This is what this patch does. And then since we can now rely on
ctors/dtors being run, make objfile_per_bfd_storage::storage_obstack
be an auto_obstack.
gdb/ChangeLog:
2017-06-27 Pedro Alves <palves@redhat.com>
* objfiles.c (get_objfile_bfd_data): Call bfd_alloc instead of
bfd_zalloc. Call objfile_per_bfd_storage's ctor.
(free_objfile_per_bfd_storage): Call objfile_per_bfd_storage's
dtor.
* objfiles.h (objfile_per_bfd_storage): Add ctor. Make
'storage_obstack' field an auto_obstack. In-class initialize all
non-bitfield fields. Make minsyms_read bool.
* symfile.c (read_symbols): Adjust.
|
|
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.
|
|
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
|
|
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.
|
|
This patch removes some unnecessary code. In particular,
terminate_minimal_symbol_table is declared in minsyms.h, so it doesn't
need to be declared in objfiles.h as well. And,
restore_ui_out_closure was rendered unnecessary by an earlier patch,
so the structure definition can be removed now.
I'm checking this in as obvious.
Tested by rebuilding on x86-64 Fedora 24 with --enable-targets=all;
which would notice any missing includes of minsyms.h.
2016-09-23 Tom Tromey <tom@tromey.com>
* utils.c (struct restore_ui_out_closure): Remove.
* objfiles.h (terminate_minimal_symbol_table): Don't declare.
|
|
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
|
bfd/ChangeLog:
* targets.c (enum bfd_flavour): Add comment.
(bfd_flavour_name): New function.
* bfd-in2.h: Regenerate.
gdb/ChangeLog:
* findvar.c (default_read_var_value) <LOC_UNRESOLVED>: Include the
kind of minimal symbol in the error message.
* objfiles.c (objfile_flavour_name): New function.
* objfiles.h (objfile_flavour_name): Declare.
gdb/testsuite/ChangeLog:
* gdb.dwarf2/dw2-bad-unresolved.c: New file.
* gdb.dwarf2/dw2-bad-unresolved.exp: New file.
|
|
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.
|
|
gdb/ChangeLog:
* objfiles.h: Whitespace cleanup.
* psympriv.h: Whitespace cleanup.
* psymtab.c: Whitespace/coding convention cleanup.
|
|
gdb/Changelog:
* objfiles.c (objfile_filename): New function.
* objfiles.h (objfile_filename): Declare it.
(objfile_name): Add function comment.
* python/py-objfile.c (objfpy_lookup_objfile_by_name): Try both the
bfd file name (which may be realpath'd), and the original name.
gdb/testsuite/ChangeLog:
* gdb.python/py-objfile.exp: Test gdb.lookup_objfile on symlinked
binary.
|
|
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
|
gdb/ChangeLog:
New parameter "debug symbol-lookup".
* NEWS: Mention it.
* cp-namespace.c (cp_lookup_symbol_imports_or_template): Add debug
output.
(cp_lookup_symbol_namespace, cp_lookup_symbol_nonlocal): Ditto.
(cp_lookup_nested_symbol): Ditto.
* language.c (language_lookup_primitive_type_by_name): Add debug
output.
* minsyms.c (lookup_minimal_symbol): Add debug output.
* objfiles.c (objfile_debug_name): Moved here, and renamed ...
* symfile-debug.c (debug_objfile_name): ... from here. All callers
updated.
* objfiles.h (objfile_debug_name): Declare.
* symtab.h (symbol_lookup_debug): Declare.
* symtab.c (symbol_lookup_debug): New global.
(lookup_language_this): Add debug output.
(lookup_symbol_aux, lookup_symbol_in_block): Ditto.
(lookup_symbol_in_objfile_symtabs, lookup_symbol_via_quick_fns): Ditto.
(lookup_symbol_in_static_block, lookup_symbol_in_objfile): Ditto.
(_initialize_symtab): Add new parameter "debug symbol-lookup".
gdb/doc/ChangeLog:
* gdb.texinfo (Debugging Output): Document "debug symbol-lookup".
|
|
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.
|
|
gdb/ChangeLog:
* objfiles.c (get_objfile_arch): Constify.
* objfiles.h (get_objfile_arch): Update prototype.
* solib.c (solib_global_lookup): Fetch arch from objfile,
not target_gdbarch.
|
|
gdb/ChangeLog:
* objfiles.h (ALL_PSPACE_OBJFILES_SAFE): Delete, unused.
(ALL_PSPACE_SYMTABS, ALL_PSPACE_PRIMARY_SYMTABS): Ditto.
|
|
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.
|
|
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.
|
|
If minimal symbols have already been read into a per-BFD object, then
a symbol reader can skip re-reading them. This changes the ELF reader
to do so.
We only skip the work if the file is ELF+DWARF. If it has stabs or
mdebug sections, then I think extra information is computed during the
minsym creation pass; and so we must still repeat it. Eventually even
this will go away, once all symbol types have switched to being
progspace-independent. In the meantime this has no negative effect --
it is just a missing optimization for a small set of users.
This change also required a somewhat non-obvious change to the OBJSTAT
accounting code. If a symbol reader skips re-reading minimal symbols,
then the corresponding OBJSTAT will not be updated. This leads to a
test failure in gdb.base/maint.exp.
To fix this, I've moved the needed stat field out of objfile and into
the per-BFD object.
2014-02-26 Tom Tromey <tromey@redhat.com>
* elfread.c (elf_read_minimal_symbols): Return early if
minimal symbols have already been read. Add "ei" parameter.
(elf_symfile_read): Call elf_read_minimal_symbols earlier.
* minsyms.c (prim_record_minimal_symbol_full): Update.
* objfiles.h (struct objstats) <n_minsyms>: Move...
(struct objfile_per_bfd_storage) <n_minsyms>: ... here.
* symmisc.c (print_objfile_statistics): Update.
|
|
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.
|
|
In a later patch we're going to change the minimal symbol address
calculation to apply section offsets at the point of use. To make it
simpler to catch potential problem spots, this patch changes the
representation of minimal symbols and introduces new
minimal-symbol-specific variants of the various accessors. This is
necessary because it would be excessively ambitious to try to convert
all the symbol types at once.
The core of this change is just renaming a field in minimal_symbol;
the rest is just a fairly mechanical rewording.
2014-02-26 Tom Tromey <tromey@redhat.com>
* symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo.
(MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES)
(MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE)
(MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME)
(MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME)
(MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME)
(MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros.
* ada-lang.c (ada_main_name): Update.
(ada_lookup_simple_minsym): Update.
(ada_make_symbol_completion_list): Update.
(ada_add_standard_exceptions): Update.
* ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update.
* aix-thread.c (pdc_symbol_addrs, pd_enable): Update.
* amd64-windows-tdep.c (amd64_skip_main_prologue): Update.
* arm-tdep.c (skip_prologue_function): Update.
(arm_skip_stack_protector, arm_skip_stub): Update.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
(arm_wince_skip_main_prologue): Update.
* auxv.c (ld_so_xfer_auxv): Update.
* avr-tdep.c (avr_scan_prologue): Update.
* ax-gdb.c (gen_var_ref): Update.
* block.c (call_site_for_pc): Update.
* blockframe.c (get_pc_function_start): Update.
(find_pc_partial_function_gnu_ifunc): Update.
* breakpoint.c (create_overlay_event_breakpoint): Update.
(create_longjmp_master_breakpoint): Update.
(create_std_terminate_master_breakpoint): Update.
(create_exception_master_breakpoint): Update.
(resolve_sal_pc): Update.
* bsd-uthread.c (bsd_uthread_lookup_address): Update.
* btrace.c (ftrace_print_function_name, ftrace_function_switched):
Update.
* c-valprint.c (c_val_print): Update.
* coff-pe-read.c (add_pe_forwarded_sym): Update.
* coffread.c (coff_symfile_read): Update.
* common/agent.c (agent_look_up_symbols): Update.
* dbxread.c (find_stab_function_addr): Update.
(end_psymtab): Update.
* dwarf2loc.c (call_site_to_target_addr): Update.
(func_verify_no_selftailcall): Update.
(tailcall_dump): Update.
(call_site_find_chain_1): Update.
(dwarf_expr_reg_to_entry_parameter): Update.
* elfread.c (elf_gnu_ifunc_record_cache): Update.
(elf_gnu_ifunc_resolve_by_got): Update.
* f-valprint.c (info_common_command): Update.
* findvar.c (read_var_value): Update.
* frame.c (get_prev_frame_1): Update.
(inside_main_func): Update.
* frv-tdep.c (frv_skip_main_prologue): Update.
(frv_frame_this_id): Update.
* glibc-tdep.c (glibc_skip_solib_resolver): Update.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Update.
* gnu-v3-abi.c (gnuv3_rtti_type): Update.
(gnuv3_skip_trampoline): Update.
* hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update.
(hppa64_hpux_in_solib_call_trampoline): Update.
(hppa_hpux_skip_trampoline_code): Update.
(hppa64_hpux_search_dummy_call_sequence): Update.
(hppa_hpux_find_import_stub_for_addr): Update.
(hppa_hpux_find_dummy_bpaddr): Update.
* hppa-tdep.c (hppa_symbol_address)
(hppa_lookup_stub_minimal_symbol): Update.
* i386-tdep.c (i386_skip_main_prologue): Update.
(i386_pe_skip_trampoline_code): Update.
* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update.
* infcall.c (get_function_name): Update.
* infcmd.c (until_next_command): Update.
* jit.c (jit_breakpoint_re_set_internal): Update.
(jit_inferior_init): Update.
* linespec.c (minsym_found): Update.
(add_minsym): Update.
* linux-fork.c (info_checkpoints_command): Update.
* linux-nat.c (get_signo): Update.
* linux-thread-db.c (inferior_has_bug): Update.
* m32c-tdep.c (m32c_return_value): Update.
(m32c_m16c_address_to_pointer): Update.
(m32c_m16c_pointer_to_address): Update.
* m32r-tdep.c (m32r_frame_this_id): Update.
* m68hc11-tdep.c (m68hc11_get_register_info): Update.
* machoread.c (macho_resolve_oso_sym_with_minsym): Update.
* maint.c (maintenance_translate_address): Update.
* minsyms.c (add_minsym_to_hash_table): Update.
(add_minsym_to_demangled_hash_table): Update.
(msymbol_objfile): Update.
(lookup_minimal_symbol): Update.
(iterate_over_minimal_symbols): Update.
(lookup_minimal_symbol_text): Update.
(lookup_minimal_symbol_by_pc_name): Update.
(lookup_minimal_symbol_solib_trampoline): Update.
(lookup_minimal_symbol_by_pc_section_1): Update.
(lookup_minimal_symbol_and_objfile): Update.
(prim_record_minimal_symbol_full): Update.
(compare_minimal_symbols): Update.
(compact_minimal_symbols): Update.
(build_minimal_symbol_hash_tables): Update.
(install_minimal_symbols): Update.
(terminate_minimal_symbol_table): Update.
(find_solib_trampoline_target): Update.
(minimal_symbol_upper_bound): Update.
* mips-linux-tdep.c (mips_linux_skip_resolver): Update.
* mips-tdep.c (mips_stub_frame_sniffer): Update.
(mips_skip_pic_trampoline_code): Update.
* msp430-tdep.c (msp430_skip_trampoline_code): Update.
* objc-lang.c (selectors_info): Update.
(classes_info): Update.
(find_methods): Update.
(find_imps): Update.
(find_objc_msgsend): Update.
* objfiles.c (objfile_relocate1): Update.
* objfiles.h (ALL_OBJFILE_MSYMBOLS): Update.
* obsd-tdep.c (obsd_skip_solib_resolver): Update.
* p-valprint.c (pascal_val_print): Update.
* parse.c (write_exp_msymbol): Update.
* ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code)
(ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update.
* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
* printcmd.c (build_address_symbolic): Update.
(sym_info): Update.
(address_info): Update.
* proc-service.c (ps_pglobal_lookup): Update.
* psymtab.c (find_pc_sect_psymtab_closer): Update.
(find_pc_sect_psymtab): Update.
* python/py-framefilter.c (py_print_frame): Update.
* ravenscar-thread.c (get_running_thread_id): Update.
* record-btrace.c (btrace_call_history, btrace_get_bfun_name):
Update.
* remote.c (remote_check_symbols): Update.
* rs6000-tdep.c (rs6000_skip_main_prologue): Update.
(rs6000_skip_trampoline_code): Update.
* sh64-tdep.c (sh64_elf_make_msymbol_special): Update.
* sol2-tdep.c (sol2_skip_solib_resolver): Update.
* solib-dsbt.c (lm_base): Update.
* solib-frv.c (lm_base): Update.
(main_got): Update.
* solib-irix.c (locate_base): Update.
* solib-som.c (som_solib_create_inferior_hook): Update.
(som_solib_desire_dynamic_linker_symbols): Update.
(link_map_start): Update.
* solib-spu.c (spu_enable_break): Update.
(ocl_enable_break): Update.
* solib-svr4.c (elf_locate_base): Update.
(enable_break): Update.
* spu-tdep.c (spu_get_overlay_table): Update.
(spu_catch_start): Update.
(flush_ea_cache): Update.
* stabsread.c (define_symbol): Update.
(scan_file_globals): Update.
* stack.c (find_frame_funname): Update.
(frame_info): Update.
* symfile.c (simple_read_overlay_table): Update.
(simple_overlay_update): Update.
* symmisc.c (dump_msymbols): Update.
* symtab.c (fixup_section): Update.
(find_pc_sect_line): Update.
(skip_prologue_sal): Update.
(search_symbols): Update.
(print_msymbol_info): Update.
(rbreak_command): Update.
(MCOMPLETION_LIST_ADD_SYMBOL): New macro.
(completion_list_objc_symbol): Update.
(default_make_symbol_completion_list_break_on): Update.
* tracepoint.c (scope_info): Update.
* tui/tui-disasm.c (tui_find_disassembly_address): Update.
(tui_get_begin_asm_address): Update.
* valops.c (find_function_in_inferior): Update.
* value.c (value_static_field): Update.
(value_fn_field): Update.
|
|
This adds the "main"-related data into the per-BFD. This is needed
because once symbol sharing across objfiles is complete, computing the
main name as a side effect of symbol reading will no longer work --
the symbols simply won't be re-read.
After this change, set_main_name is only used by the main_name
machinery itself, so this patch makes it static.
2014-01-15 Tom Tromey <tromey@redhat.com>
* dbxread.c (process_one_symbol): Use set_objfile_main_name.
* dwarf2read.c (read_partial_die): Use set_objfile_main_name.
* objfiles.c (get_objfile_bfd_data): Initialize language_of_main.
(set_objfile_main_name): New function.
* objfiles.h (struct objfile_per_bfd_storage) <name_of_main,
language_of_main>: New fields.
(set_objfile_main_name): Declare.
* symtab.c (find_main_name): Loop over objfiles to find the main
name and language.
(set_main_name): Now static.
(get_main_info): Add comment.
* symtab.h (set_main_name): Don't declare.
|
|
This moves the entry point information into the per-BFD object and
arranges not to recompute it when it has already been computed.
2014-01-15 Tom Tromey <tromey@redhat.com>
* symfile.c (init_entry_point_info): Use new "initialized" field.
Update.
* objfiles.h (struct entry_point) <initialized>: New field.
(struct objfile_per_bfd_storage) <ei>: New field, moved from...
(struct objfile) <ei>: ...here. Remove.
* objfiles.c (entry_point_address_query): Update.
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