Commit Graph

15 Commits

Author SHA1 Message Date
Doug Evans 13aaf45454 PR symtab/16426
* dwarf2read.c (dwarf2_get_dwz_file): Call gdb_bfd_record_inclusion.
	(try_open_dwop_file): Ditto.
	* gdb_bfd.c: #include "vec.h".
	(bfdp): New typedef.
	(struct gdb_bfd_data): New member included_bfds.
	(gdb_bfd_unref): Unref all included bfds.
	(gdb_bfd_record_inclusion): New function.
	* gdb_bfd.h (gdb_bfd_record_inclusion): Declare.
2014-01-13 17:15:42 -08:00
Hui Zhu adcf2eed05 Remove gdb_bfd_stash_filename to fix crash with fix of binutils/11983
https://sourceware.org/ml/gdb-patches/2014-01/msg00029.html
https://sourceware.org/ml/gdb-patches/2014-01/msg00053.html

2014-01-07  Hui Zhu  <hui@codesourcery.com>

	* gdb_bfd.c (gdb_bfd_stash_filename): Removed.
	(gdb_bfd_open): Removed gdb_bfd_stash_filename.
	(gdb_bfd_fopen): Ditto.
	(gdb_bfd_openr): Ditto.
	(gdb_bfd_openw): Ditto.
	(gdb_bfd_openr_iovec): Ditto.
	(gdb_bfd_fdopenr): Ditto.
	* gdb_bfd.h (gdb_bfd_stash_filename): Removed.
	* solib-aix.c (solib_aix_bfd_open): Alloc object_bfd->filename
	with xstrdup.
	* solib-darwin.c (darwin_bfd_open): Alloc res->filename
	with xstrdup.
	* symfile-mem.c (symbol_file_add_from_memory): Removed
	gdb_bfd_stash_filename.
2014-01-07 00:24:41 +08:00
Joel Brobecker ecd75fc8ee Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
Tom Tromey 1da77581c0 don't share per-BFD data if relocations are needed
Right now we always share per-BFD data across objfiles, if there is a
BFD.  This works fine.  However, we're going to start sharing more
data, and sometimes this data will come directly from sections of the
BFD.  If such a section has SEC_RELOC set, then the data coming from
that section will not be truly sharable -- the section will be
program-space-dependent, and re-read by gdb for each objfile.

This patch disallows per-BFD sharing in this case.  This is a bit
"heavy" in that we could in theory examine each bit of shared data for
suitability.  However, that is more complicated, and SEC_RELOC is rare
enough that I think we needn't bother.

Note that the "no sharing" case is equivalent to "gdb works as it
historically did".  That is, the sharing is a new(-ish) optimization.

Built and regtested on x86-64 Fedora 18.

	* gdb_bfd.c (struct gdb_bfd_data) <relocation_computed,
	needs_relocations>: New fields.
	(gdb_bfd_requires_relocations): New function.
	* gdb_bfd.h (gdb_bfd_requires_relocations): Declare.
	* objfiles.c (get_objfile_bfd_data): Disallow sharing if
	the BFD needs relocations applied.
2013-10-07 19:31:13 +00:00
Tom Tromey 65cf356359 * coffread.c (cs_to_section): Use gdb_bfd_section_index.
* elfread.c (record_minimal_symbol, elf_symtab_read): Use
	gdb_bfd_section_index.
	* gdb_bfd.c (gdb_bfd_section_index, gdb_bfd_count_sections):
	New functions.
	* gdb_bfd.h (gdb_bfd_section_index, gdb_bfd_count_sections):
	Declare.
	* machoread.c (macho_symtab_add_minsym, macho_symfile_offsets):
	Update.
	* objfiles.c (add_to_objfile_sections_full): New function.
	(add_to_objfile_sections): Use it.
	(build_section_table): Rewrite.
	(objfile_relocate1): Use gdb_bfd_section_index.  Update.
	* objfiles.h (obj_section_offset): Use gdb_bfd_section_index.
	(struct objfile) <sections>: Update comment.
	(ALL_OBJFILE_OSECTIONS): Skip sections where the_bfd_section
	is NULL.
	(ALL_OBJSECTIONS): Use it.
	* solib-dsbt.c (dsbt_relocate_main_executable): Update.
	* solib-frv.c (frv_relocate_main_executable): Update.
	* solib-target.c (solib_target_relocate_section_addresses):
	Use gdb_bfd_section_index.
	* symfile.c (build_section_addr_info_from_section_table):
	Use gdb_bfd_section_index.
	(build_section_addr_info_from_bfd, place_section): Likewise.
	* symtab.c (fixup_section): Update.
	* xcoffread.c (find_targ_sec): Use gdb_bfd_section_index.
2013-04-08 20:04:42 +00:00
Tom Tromey dccee2de16 * gdb_bfd.c (struct gdb_bfd_data) <crc_computed, crc>:
New fields.
	(get_file_crc): Move from symfile.c.
	(gdb_bfd_crc): New function.
	* gdb_bfd.h (gdb_bfd_crc): Declare.
	* objfiles.h (struct objfile) <crc32, crc32_p>: Remove.
	* symfile.c (get_file_crc): Move to gdb_bfd.c.
	(separate_debug_file_exists): Use gdb_bfd_crc.
2013-03-14 20:26:19 +00:00
Joel Brobecker 28e7fd6234 Update years in copyright notice for the GDB files.
Two modifications:
  1. The addition of 2013 to the copyright year range for every file;
  2. The use of a single year range, instead of potentially multiple
     year ranges, as approved by the FSF.
2013-01-01 06:33:28 +00:00
Tom Tromey 0cd61f4402 PR gdb/14290:
* solib-darwin.c (gdb_bfd_mach_o_fat_extract): New function.
	(darwin_solib_get_all_image_info_addr_at_init, darwin_bfd_open):
	Use it.
	* gdb_bfd.h (gdb_bfd_mark_parent): Declare.
	* gdb_bfd.c (gdb_bfd_mark_parent): New function.
	(gdb_bfd_openr_next_archived_file): Use it.
2012-11-28 18:48:38 +00:00
Tom Tromey e992eda4f6 * gdb_bfd.h: Include registry.h. Use DECLARE_REGISTRY.
* gdb_bfd.c: Use DEFINE_REGISTRY.
	(struct gdb_bfd_data): Add REGISTRY_FIELDS.
	(gdb_bfd_ref): Call bfd_alloc_data.
	(gdb_bfd_unref): Call bfd_free_data.
2012-08-22 15:50:38 +00:00
Tom Tromey 64c311498e * cli/cli-dump.c (bfd_openr_with_cleanup): Use gdb_bfd_openr.
(bfd_openw_with_cleanup): Use gdb_bfd_openw.
	* corelow.c (core_open): Use gdb_bfd_fopen.
	* dsrec.c (load_srec): Use gdb_bfd_openr.
	* exec.c (exec_file_attach): Use gdb_bfd_fopen.
	* gcore.c (gcore_memory_sections): Use gdb_bfd_openw.
	* gdb_bfd.c (gdb_bfd_fopen, gdb_bfd_openr, gdb_bfd_openw)
	(gdb_bfd_openr_iovec, gdb_bfd_openr_next_archived_file)
	(gdb_bfd_fdopenr): New functions.
	* gdb_bfd.h (gdb_bfd_fopen, gdb_bfd_openr, gdb_bfd_openw)
	(gdb_bfd_openr_iovec, gdb_bfd_openr_next_archived_file)
	(gdb_bfd_fdopenr): Declare.
	* jit.c (bfd_open_from_target_memory): Use gdb_bfd_openr_iovec.
	* m32-rom.c (m32r_load, m32r_upload_command): Use gdb_bfd_openr.
	* machoread.c (macho_symfile_read_all_oso): Use gdb_bfd_openr,
	gdb_bfd_openr_next_archived_file.
	(macho_check_dsym): Use gdb_bfd_openr.
	(macho_add_oso_symfile): Don't call gdb_bfd_stash_filename.
	* procfs.c (insert_dbx_link_bpt_in_file): Use gdb_bfd_fdopenr.
	* remote-m32r-sdi.c (m32r_load): Use gdb_bfd_openr.
	* remote-mips.c (mips_load_srec, pmon_load_fast): Use
	gdb_bfd_openr.
	* remote.c (remote_bfd_open): Use gdb_bfd_openr_iovec.
	* rs6000-nat.c (add_vmap): Use gdb_bfd_openr, gdb_bfd_fdopenr,
	gdb_bfd_openr_next_archived_file.
	* solib-darwin.c (darwin_solib_get_all_image_info_addr_at_init):
	Use gdb_bfd_openr.
	* solib-pa64.c (pa64_solib_create_inferior_hook): Use
	gdb_bfd_openr.
	* solib-spu.c (spu_bfd_fopen): Use gdb_bfd_openr_iovec.
	* solib.c (solib_bfd_fopen): Use gdb_bfd_fopen.
	* spu-linux-nat.c (spu_bfd_open): Use gdb_bfd_openr_iovec.
	* symfile.c (bfd_open_maybe_remote): Use gdb_bfd_openr.
	(symfile_bfd_open): Use gdb_bfd_fopen.
	(generic_load): Use gdb_bfd_openr.
	* windows-nat.c (windows_make_so): Use gdb_bfd_openr.
2012-07-23 14:57:58 +00:00
Tom Tromey 520b0001c1 * bfd-target.c (target_bfd_reopen): Update.
* cli/cli-dump.c (bfd_openr_with_cleanup)
	(bfd_openw_with_cleanup): Update.
	* corelow.c (core_open): Update.
	* dsrec.c (load_srec): Update.
	* exec.c (exec_file_attach): Update.
	* gcore.c (create_gcore_bfd): Update.
	* gdb_bfd.c (gdb_bfd_ref): Return void.
	(gdb_bfd_open): Update.
	* gdb_bfd.h (gdb_bfd_ref): Return void.
	Update comments.
	* jit.c (jit_bfd_try_read_symtab): Update.
	* m32r-rom.c (m32r_load, m32r_upload_command): Update.
	* machoread.c (macho_symfile_read_all_oso): Update.
	(macho_check_dsym): Update.
	* procfs.c (insert_dbx_link_bpt_in_file): Update.
	* remote-m32r-sdi.c (m32r_load): Update.
	* remote-mips.c (mips_load_srec, pmon_load_fast): Update.
	* rs6000-nat.c (add_vmap): Update.
	* solib-darwin.c (darwin_solib_get_all_image_info_addr_at_init):
	Update.
	* solib-pa64.c (pa64_solib_create_inferior_hook): Update.
	* solib-spu.c (spu_bfd_open): Update.
	* solib.c (solib_bfd_fopen, solib_read_symbols): Update.
	* spu-linux-nat.c (spu_bfd_open): Update.
	* symfile.c (bfd_open_maybe_remote, symfile_bfd_open)
	(generic_load): Update.
	* windows-nat.c (windows_make_so): Update.
2012-07-23 14:56:11 +00:00
Tom Tromey 4bf44c1cf1 * dwarf2read.c: Don't include zlib.h or sys/mman.h.
(pagesize): Remove.
	(struct dwarf2_section_info) <map_addr, map_len>: Remove.
	(zlib_decompress_section): Remove.
	(dwarf2_read_section): Use gdb_bfd_map_section.
	(munmap_section_buffer): Remove.
	(free_dwo_file, dwarf2_per_objfile_free): Don't use
	munmap_section_buffer.
	* gdb_bfd.c: Include zlib.h, sys/mman.h.
	(struct gdb_bfd_section_data): New.
	(free_one_bfd_section): New function.
	(gdb_bfd_close_or_warn): Use free_one_bfd_section.
	(get_section_descriptor, zlib_decompress_section)
	(gdb_bfd_map_section): New functions.
	* gdb_bfd.h (gdb_bfd_map_section): Declare.
2012-07-18 19:57:21 +00:00
Tom Tromey 6ec53d052b * gdb_bfd.c (struct gdb_bfd_data): New.
(gdb_bfd_cache): New global.
	(struct gdb_bfd_cache_search): New.
	(hash_bfd, eq_bfd, gdb_bfd_open): New functions.
	(gdb_bfd_ref, gdb_bfd_unref): Use gdb_bfd_data.
	* gdb_bfd.h (gdb_bfd_open): Declare.
2012-07-18 19:49:33 +00:00
Tom Tromey a4453b7e0b * symfile.c (symfile_bfd_open): Don't copy name. Call
gdb_bfd_stash_filename.
	(load_command): Open the new BFD before freeing the old.
	(bfd_open_maybe_remote): Call gdb_bfd_stash_filename.
	* symfile-mem.c (symbol_file_add_from_memory): Don't copy name.
	Call gdb_bfd_stash_filename.
	* spu-linux-nat.c (spu_bfd_open): Don't copy name.
	* solib-spu.c (spu_bfd_fopen): Don't copy name.  Call
	gdb_bfd_stash_filename.
	* solib-darwin.c (darwin_solib_get_all_image_info_addr_at_init):
	Free found_pathname.
	* rs6000-nat.c (add_vmap): Don't copy filename.  Call
	gdb_bfd_stash_filename.
	* remote.c (remote_bfd_open): Call gdb_bfd_stash_filename.
	* machoread.c (macho_add_oso_symfile): Call
	gdb_bfd_stash_filename.
	(macho_symfile_read_all_oso): Arrange to free archive_name.  Call
	gdb_bfd_stash_filename.
	(macho_check_dsym): Don't copy filename.  Call
	gdb_bfd_stash_filename.
	* jit.c (bfd_open_from_target_memory): Don't copy the filename.
	* gdb_bfd.c (gdb_bfd_stash_filename): New function.
	* gdb_bfd.h (gdb_bfd_stash_filename): Declare.
	* gcore.c (create_gcore_bfd): Call gdb_bfd_stash_filename.
	* exec.c (exec_close): Don't free the BFD's filename.
	(exec_file_attach): Don't copy the filename.  Call
	gdb_bfd_stash_filename.
	* corelow.c (core_close): Don't free the BFD's filename.
	(core_open): Call gdb_bfd_stash_filename.
	* corefile.c (reopen_exec_file): Remove #if 0 code.
	* solib.c (solib_bfd_fopen): Call gdb_bfd_stash_filename.  Free
	pathname.
	* dwarf2read.c (try_open_dwo_file): Call gdb_bfd_stash_filename.
2012-07-18 19:34:57 +00:00
Tom Tromey cbb099e886 * dwarf2read.c (try_open_dwo_file): Use gdb_bfd_ref and
gdb_bfd_unref.
	(free_dwo_file): Use gdb_bfd_unref.
	* cli/cli-dump.c: Include gdb_bfd.h.
	(bfd_openw_with_cleanup): Use gdb_bfd_ref.
	(bfd_openr_with_cleanup): Likewise.
	* windows-nat.c (windows_make_so): Use gdb_bfd_ref,
	gdb_bfd_unref.
	* utils.c: Include gdb_bfd.h.
	(do_bfd_close_cleanup): Use gdb_bfd_unref.
	* symfile.c: Include gdb_bfd.h.
	(separate_debug_file_exists): Use gdb_bfd_unref.
	(bfd_open_maybe_remote): Use gdb_bfd_ref.
	(symfile_bfd_open): Use gdb_bfd_ref, gdb_bfd_unref.
	(generic_load): Use gdb_bfd_ref.
	(reread_symbols): Use gdb_bfd_unref.
	* symfile-mem.c: Include gdb_bfd.h.
	(symbol_file_add_from_memory): Use make_cleanup_bfd_close.
	* spu-linux-nat.c (spu_bfd_open): Use gdb_bfd_ref, gdb_bfd_unref.
	* solib.c: Include gdb_bfd.h.
	(solib_bfd_fopen): Use gdb_bfd_ref.
	(solib_bfd_open): Use gdb_bfd_unref.
	(free_so_symbols): Use gdb_bfd_unref.
	(reload_shared_libraries_1): Use gdb_bfd_unref.
	* solib-spu.c: Include gdb_bfd.h.
	(spu_bfd_fopen): Use gdb_bfd_ref, gdb_bfd_unref.
	* solib-pa64.c (pa64_solib_create_inferior_hook): Use gdb_bfd_ref,
	gdb_bfd_unref.
	* solib-frv.c: Include gdb_bfd.h.
	(enable_break2): Use gdb_bfd_unref.
	* solib-dsbt.c: Include gdb_bfd.h.
	(enable_break2): Use gdb_bfd_unref.
	* solib-darwin.c: Include gdb_bfd.h.
	(darwin_solib_get_all_image_info_addr_at_init): Use gdb_bfd_ref,
	gdb_bfd_unref.
	(darwin_bfd_open): Use gdb_bfd_unref.
	* rs6000-nat.c (add_vmap): Use gdb_bfd_ref, gdb_bfd_unref.
	* remote-mips.c: Include gdb_bfd.h.
	(mips_load_srec): Use gdb_bfd_ref.
	(pmon_load_fast): Use gdb_bfd_ref.
	* remote-m32r-sdi.c: Include gdb_bfd.h.
	(m32r_load): Use gdb_bfd_ref.
	* record.c: Include gdb_bfd.h.
	(record_save_cleanups): Use gdb_bfd_unref.
	(cmd_record_save): Use gdb_bfd_unref.
	* procfs.c (insert_dbx_link_bpt_in_file): Use gdb_bfd_ref,
	gdb_bfd_unref.
	* objfiles.h (gdb_bfd_close_or_warn): Remove.
	(gdb_bfd_ref, gdb_bfd_unref): Move to gdb_bfd.h.
	* objfiles.c: Include gdb_bfd.h.
	(free_objfile): Use gdb_bfd_unref.
	(gdb_bfd_close_or_warn, gdb_bfd_ref, gdb_bfd_unref): Move to
	gdb_bfd.c.
	* machoread.c (macho_add_oso_symfile): Use gdb_bfd_unref.
	(macho_symfile_read_all_oso): Use gdb_bfd_ref, gdb_bfd_unref.
	(macho_check_dsym): Likewise.
	* m32r-rom.c: Include gdb_bfd.h.
	(m32r_load): Use gdb_bfd_ref.
	(m32r_upload_command): Use gdb_bfd_ref.
	* jit.c: Include gdb_bfd.h.
	(jit_bfd_try_read_symtab): Use gdb_bfd_ref, gdb_bfd_unref.
	* gdb_bfd.h: New file.
	* gdb_bfd.c: New file.
	* gcore.c: Include gdb_bfd.h.
	(create_gcore_bfd): Use gdb_bfd_ref.
	(do_bfd_delete_cleanup): Use gdb_bfd_unref.
	(gcore_command): Use gdb_bfd_unref.
	* exec.c: Include gdb_bfd.h.
	(exec_close): Use gdb_bfd_unref.
	(exec_close_1): Use gdb_bfd_unref.
	(exec_file_attach): Use gdb_bfd_ref.
	* elfread.c: Include gdb_bfd.h.
	(build_id_verify): Use gdb_bfd_unref.
	* dsrec.c: Include gdb_bfd.h.
	(load_srec): Use gdb_bfd_ref.
	* corelow.c: Include gdb_bfd.h.
	(core_close): Use gdb_bfd_unref.
	(core_open): Use gdb_bfd_ref.
	* bfd-target.c: Include gdb_bfd.h.
	(target_bfd_xclose): Use gdb_bfd_unref.
	(target_bfd_reopen): Use gdb_bfd_ref.
	* Makefile.in (SFILES): Add gdb_bfd.c.
	(HFILES_NO_SRCDIR): Add gdb_bfd.h.
	(COMMON_OBS): Add gdb_bfd.o.
2012-07-18 19:33:34 +00:00