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2013-02-192013-02-19 Sandra Loosemore <sandra@codesourcery.com>Sandra Loosemore1-1/+2
PR ld/15146 ld/ * plugin.c (plugin_notice): Add null check before dereferencing pointer.
2013-02-16Don't add DT_NEEDED for references from the dummy bfdH.J. Lu1-1/+8
bfd/ PR ld/15146 * elflink.c (elf_link_add_object_symbols): Don't add DT_NEEDED for references from the dummy bfd. ld/ PR ld/15146 * plugin.c (plugin_notice): Replace the undefined dummy bfd with the real one. ld/testsuite/ PR ld/15146 * ld-plugin/pr15146.d: New file. * ld-plugin/pr15146a.c: Likewise. * ld-plugin/pr15146b.c: Likewise. * ld-plugin/pr15146c.c: Likewise. * ld-plugin/pr15146d.c: Likewise. * ld-plugin/lto.exp: Add tests for PR ld/15146.
2013-02-16Also trace symbol from the IR bfdH.J. Lu1-4/+4
PR ld/15141 * plugin.c (plugin_notice): Also trace symbol from the IR bfd.
2012-12-03Improve plugin error handlingH.J. Lu1-13/+17
ld/ PR ld/14904 * ldmain.c (main): Don't check plugin_load_plugins return. * lexsup.c (parse_args): Don't check plugin_opt_plugin return. * plugin.c (dlerror): New. Defined if HAVE_DLFCN_H isn't defined. (plugin_opt_plugin): Change return type to void. Stop on dlopen error and report error with dlerror (). (plugin_load_plugins): Change return type to void. Stop on dlsym error and report error with dlerror (). Don't use set_plugin_error. (plugin_call_cleanup): Issue an error for each plugin. * plugin.h (plugin_opt_plugin): Change return type to void. (plugin_load_plugins): Likewise. ld/testsuite/ PR ld/14904 * ld-plugin/plugin-2.d: Update expected error message. * ld-plugin/plugin-4.d: Likewise.
2012-10-22 * plugin.c (plugin_load_plugins): Warning fix.Alan Modra1-2/+4
2012-06-14Handle link_info.pie in ld pluginH.J. Lu1-1/+3
* plugin.c (set_tv_header): Handle link_info.pie.
2012-03-05 * ldlang.h (struct lang_input_statement_flags): New, extract from..Alan Modra1-4/+4
(lang_input_statement_type): ..here. New field "flags". (input_flags): Declare. (missing_file): Delete. * ldmain.h (whole_archive): Delete. (add_DT_NEEDED_for_regular, add_DT_NEEDED_for_dynamic): Delete. * ld.h (ld_config_type <dynamic_link>): Delete. * ldmain.c (whole_archive): Delete. (add_DT_NEEDED_for_regular, add_DT_NEEDED_for_dynamic): Delete. * ldlang.c (missing_file, ldlang_sysrooted_script): Delete. (input_flags): New variable. Replace all uses of config.dynamic_link, missing_file, ldlang_sysrooted_script, whole_archive, add_DT_NEEDED_for_regular and add_DT_NEEDED_for_dynamic with fields from here. * ldfile.c: Likewise. * ldgram.y: Likewise. * ldmain.c: Likewise. * ldwrite.c: Likewise. * lexsup.c: Likewise. * plugin.c: Likewise. * emultempl/aix.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/hppaelf.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/scoreelf.em: Likewise. * emultempl/spuelf.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/vms.em: Likewise. * ldlang.c (new_afile): Use memset to init zero fields. (load_symbols): Simplify save and restore of flags around command file processing. * ldfile.c (is_sysrooted_pathname): Tidy.
2011-10-20 PR ld/13287Alan Modra1-0/+11
* plugin.c (plugin_should_reload): New function. * plugin.h (plugin_should_reload): Declare. * ldlang.c (open_input_bfds): Use above function.
2011-10-10 * ldmain.c (main): Move code twiddling various config and link_infoAlan Modra1-8/+4
bits to.. * lexsup.c (parse_args): ..here. Move plugin_load_plugins call into main. * plugin.c (set_tv_header): Test link_info.executable, not link_info.shared. (is_visible_from_outside): Likewise. Delete redundant is_ir_dummy_bfd check and "section" parameter.
2011-10-06 PR ld/13329Alan Modra1-36/+51
ld/ * plugin.c (tv_header_tags): Add LDPT_GET_SYMBOLS_V2. (set_tv_header): Handle it. Adjust LDPT_GET_SYMBOLS. Return void. (get_symbols): Add def_ironly_exp param. Return that value for syms exported from shared libs. (get_symbols_v1, get_symbols_v2): New wrapper functions. * testplug.c: Update for above changes. ld/testsuite/ * ld-plugin/plugin-1.d, * ld-plugin/plugin-2.d, * ld-plugin/plugin-3.d, * ld-plugin/plugin-4.d, * ld-plugin/plugin-5.d, * ld-plugin/plugin-6.d, * ld-plugin/plugin-7.d, * ld-plugin/plugin-8.d, * ld-plugin/plugin-9.d, * ld-plugin/plugin-10.d, * ld-plugin/plugin-11.d: Update.
2011-09-16Check if a symbol is hidden by linker script.H.J. Lu1-0/+4
bfd/ 2011-09-15 H.J. Lu <hongjiu.lu@intel.com> PR ld/12975 * bfd-in.h (bfd_elf_size_dynamic_sections): Remove pointer to struct bfd_elf_version_tree. * elflink.c (elf_info_failed): Remove verdefs. (_bfd_elf_export_symbol): Updated. _bfd_elf_link_assign_sym_version): Likewise. (bfd_elf_size_dynamic_sections): Remove pointer to struct bfd_elf_version_tree. Updated. (bfd_elf_gc_mark_dynamic_ref_symbol): Check if a symbol is hidden by linker script. * linker.c (bfd_hide_sym_by_version): New. * bfd-in2.h: Regenerated. include/ 2011-09-15 H.J. Lu <hongjiu.lu@intel.com> PR ld/12975 * bfdlink.h (bfd_link_info): Add version_info. ld/ 2011-09-15 H.J. Lu <hongjiu.lu@intel.com> PR ld/12975 * ldlang.c (lang_elf_version_info): Removed. (lang_register_vers_node): Replace lang_elf_version_info with link_info.version_info. (lang_add_vers_depend): Likewise. * pe-dll.c (process_def_file_and_drectve): Likewise. * emultempl/solaris2.em (elf_solaris2_before_allocation): Likewise. * ldlang.h (lang_elf_version_info): Removed. * plugin.c (is_visible_from_outside): Check if symbol is hidden by version script. * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Remove lang_elf_version_info. ld/testsuite/ 2011-09-15 H.J. Lu <hongjiu.lu@intel.com> PR ld/12975 * ld-elf/pr12975.d: New. * ld-elf/pr12975.s: Likewise. * ld-elf/pr12975.t: Likewise.
2011-08-17 PR ld/12762Alan Modra1-10/+22
bfd/ * bfd-in.h (struct bfd_section_already_linked): Forward declare. (_bfd_handle_already_linked): Declare. * coff-alpha.c (_bfd_ecoff_section_already_linked): Define as _bfd_coff_section_already_linked. * coff-mips.c (_bfd_ecoff_section_already_linked): Likewise. * coffcode.h (coff_section_already_linked): Likewise. * cofflink.c (coff_link_add_symbols): Revert 2011-07-09 changes. * elf-bfd.h: Likewise. * libbfd-in.h: Likewise. * targets.c: Likewise. * linker.c (bfd_section_already_linked): Likewise. (bfd_section_already_linked_table_lookup): Likewise. (bfd_section_already_linked_table_insert): Likewise. (_bfd_generic_section_already_linked): Likewise. Call _bfd_handle_already_linked. (_bfd_handle_already_linked): New function, split out from.. * elflink.c (_bfd_elf_section_already_linked): ..here. Revert 2011-07-09 changes. Avoid unnecessary strcmp when matching already_linked_list entries. Match plugin linkonce section. (section_signature): Delete. * coffgen.c (_bfd_coff_section_already_linked): New function. * libcoff-in.h (_bfd_coff_section_already_linked): Declare. * libbfd.h: Regenerate. * libcoff.h: Regenerate. * bfd-in2.h: Regenerate. ld/ * ldlang.c (section_already_linked): Revert 2011-07-09 changes. * plugin.c: Likewise. (asymbol_from_plugin_symbol): Create linkonce section for syms with comdat_key.
2011-08-09 PR ld/13066Alan Modra1-6/+5
PR ld/12762 * plugin.c (add_symbols): Revert 2011-08-05.
2011-08-05 PR ld/12762Alan Modra1-5/+7
bfd/ * elflink.c (_bfd_elf_section_already_linked): Return matched status. Remove COFF comdat section handling. * linker.c (_bfd_generic_section_already_linked): Return matched status. Don't set SEC_GROUP in l_flags for plugin entries. (bfd_section_already_linked): Update prototype. * targets.c (_section_already_linked): Likewise. * elf-bfd.h (_bfd_elf_section_already_linked): Likewise. * libbfd-in.h (_bfd_generic_section_already_linked): Likewise. (_bfd_nolink_section_already_linked): Update. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. ld/ * plugin.c (add_symbols): Exclude comdat_key symbols from symbol table if already seen.
2011-07-09 PR ld/12942Alan Modra1-1/+11
bfd/ * elflink.c (elf_link_add_object_symbols): Use elf_discarded_section rather than kept_section to determine whether a symbol is from a discarded section. * cofflink.c (coff_link_add_symbols): Make symbols from discarded sections appear undefined. * elf-bfd.h (_bfd_elf_section_already_linked): Replace "asection *" with "struct already_linked *". * libbfd-in.h (_bfd_nolink_section_already_linked): Likewise. (_bfd_generic_section_already_linked): Likewise. (bfd_section_already_linked_table_insert): Likewise. (struct already_linked): New. (struct bfd_section_already_linked): Use it. * elflink.c (_bfd_elf_section_already_linked): Replace. "asection *" with "struct already_linked *". Replace the plugin dummy with the LTO output. * linker.c (_bfd_generic_section_already_linked): Likewise. * targets.c (struct already_linked): Add forward declaration. (bfd_target): Replace "struct bfd_section *" with "struct already_linked *" in _section_already_linked. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. include/ * bfdlink.h (bfd_link_info): Add loading_lto_outputs. ld/ * ldlang.c (section_already_linked): Pass "struct already_linked *" to bfd_section_already_linked. (lang_process): Set link_info.loading_lto_outputs before loading LTO outputs. * plugin.c: Include "libbfd.h". (add_symbols): Call bfd_section_already_linked with comdat_key.
2011-05-17 PR ld/12760Alan Modra1-6/+34
include/ * bfdlink.h (struct bfd_link_callbacks <notice>): Add "flags" and "string" param. bfd/ * coff-aux.c (coff_m68k_aux_link_add_one_symbol): Adjust "notice" call. * elflink.c (elf_link_add_object_symbols): Likewise. * linker.c (_bfd_generic_link_add_one_symbol): Likewise. ld/ * ldmain.c (notice): Add "flags" and "string" param. * plugin.c (plugin_notice): Likewise. Handle indirect, warning and constructor syms.
2011-05-16 PR ld/12760Alan Modra1-3/+8
* plugin.c (plugin_notice): Set u.undef.abfd for symbols made undefweak.
2011-04-24 PR ld/12365Alan Modra1-112/+36
PR ld/12696 include/ * bfdlink.h (ENUM_BITFIELD): Define. (struct bfd_link_hash_entry): Make "type" a bitfield. Add "non_ir_ref". (struct bfd_link_callbacks <notice>): Pass bfd_link_hash_entry pointer rather than "name". bfd/ * coff-aux.c (coff_m68k_aux_link_add_one_symbol): Update "notice" call. * linker.c (_bfd_link_hash_newfunc): Clear bitfields. (_bfd_generic_link_add_one_symbol): Update "notice" call. * elflink.c (_bfd_elf_merge_symbol): Don't skip weak redefs when it is a redef of an IR symbol in a real BFD. ld/ * ldmain.c (notice): Delete "name" param, add "h". * plugin.c (plugin_notice): Likewise. Set non_ir_ref. Handle redefinitions of IR symbols in real BFDs. (plugin_multiple_definition, plugin_multiple_common): Delete. (non_ironly_hash, init_non_ironly_hash): Delete. (is_visible_from_outside): Traverse entry_symbol chain. (get_symbols): Use non_ir_ref flag rather than hash lookup.
2011-04-20 PR ld/12365Alan Modra1-2/+66
bfd/ * elfcode.h (elf_slurp_symbol_table): Put common plugin IR symbols in their own common section. * elflink.c (elf_link_add_object_symbols): Likewise. * linker.c (generic_link_check_archive_element): Don't lose flags if common section is pre-existing. (_bfd_generic_link_add_one_symbol): Likewise. ld/ * ldfile.c (ldfile_try_open_bfd): Move code creating and switching to plugin IR BFD.. * ldmain.c (add_archive_element): ..and similar code here.. * plugin.c (plugin_maybe_claim): ..to here. New function. (plugin_call_claim_file): Make static. (asymbol_from_plugin_symbol): Set ELF st_shndx for common syms. (plugin_multiple_common): New function. (plugin_call_all_symbols_read): Hook in plugin_multiple_common. * plugin.h (plugin_call_claim_file): Don't declare. (plugin_maybe_claim): Declare.
2011-04-20 PR ld/12365Alan Modra1-29/+10
include/ * bfdlink.h (struct bfd_link_callbacks): Modify multiple_definition and multiple_common parameters to pass in a bfd_link_hash_entry pointer rather than name,bfd etc. found in the hash entry. bfd/ * elflink.c (_bfd_elf_merge_symbol): Update multiple_common calls. * linker.c (_bfd_generic_link_add_one_symbol): Likewise. Call multiple_definition regardless of allow_multiple_definition. * simple.c (simple_dummy_multiple_definition): Update. * xcofflink.c (xcoff_link_add_symbols): Update multiple_definition calls. ld/ * ldmain.c (multiple_definition): Take a bfd_link_hash_entry pointer arg rather than "name", "obfd", "osec", "oval". Add code removed from linker.c. Hack around xcofflink.c oddity in passing NULL nbfd. (multiple_common): Similarly. * plugin.c (orig_allow_multiple_defs): Delete. (plugin_call_all_symbols_read): Don't twiddle allow_multiple_definition. (plugin_multiple_definition): Update.
2011-04-17 PR ld/12365Alan Modra1-89/+124
PR ld/12672 bfd/ * bfd.c (BFD_PLUGIN): Define. (BFD_FLAGS_SAVED, BFD_FLAGS_FOR_BFD_USE_MASK): Add BFD_PLUGIN. * bfd-in2.h: Regenerate. * elflink.c (elf_link_output_extsym): Strip undefined plugin syms. * opncls.c (bfd_make_readable): Don't lose original bfd flags. ld/ * ldfile.c (ldfile_try_open_bfd): Don't attempt any plugin action when no_more_claiming. * ldmain.c (add_archive_element): Likewise. (multiple_definition): Remove plugin_multiple_definition call. (notice): Remove plugin_notice call. * ldlang.c (lang_list_insert_after, void lang_list_remove_tail): Move. Delete prototype. (plugin_insert): New static var. (open_input_bfds): Only rescan libs after plugin insert point. (lang_gc_sections): Omit plugin claimed files. (lang_process): Set plugin_insert. Only rescan when plugin adds objects. * plugin.h (no_more_claiming): Declare. (plugin_notice, plugin_multiple_definition): Don't declare. * plugin.c: Formatting. (orig_notice_all, orig_allow_multiple_defs, orig_callbacks, plugin_callbacks): New static vars. (no_more_claiming): Make global. (plugin_cached_allow_multiple_defs): Delete. (plugin_get_ir_dummy_bfd): Set SEC_EXCLUDE on dummy .text section, use newer bfd_make_section variant. Make COMMON section too. Error handling. Correct setting of gp size. (asymbol_from_plugin_symbol): Properly cast last arg of concat. (message): Likewise for ACONCAT. (asymbol_from_plugin_symbol): Use our COMMON section. (get_symbols): When report_plugin_symbols, show visibility too. (init_non_ironly_hash): Move. Don't test non_ironly_hash. (plugin_load_plugins): Save state of linker callbacks, set up to call plugin_notice instead. Call init_non_ironly_hash here. (plugin_call_all_symbols_read): Set plugin_multiple_definition in plugin callbacks. (plugin_notice): Rewrite. (plugin_multiple_definition): Make static, call original callback. ld/testsuite/ * ld-plugin/plugin-7.d: Adjust for plugin changes. * ld-plugin/plugin-8.d: Likewise. * ld-plugin/plugin.exp: Pass --verbose=2 for visibility test, and compare ld output to.. * ld-plugin/plugin-12.d: New.
2011-03-28 * configure.in: Check for windows.h, not Windows.h.Joseph Myers1-1/+1
* configure: Regenerate. * plugin.c: Include windows.h, not Windows.h.
2011-03-10[PATCH] Respect symbol wrappers when computing symbol resolutions.Dave Korn1-3/+6
ld/ChangeLog: 2011-03-10 Dave Korn <dave.korn.cygwin@gmail.com> * plugin.c (get_symbols): Use wrapped lookup for undefined symbols.
2011-03-10[PATCH] Do not use dummy bfd suffix for recognition, make it human-readable ↵Dave Korn1-14/+10
instead. ld/ChangeLog: 2011-03-10 Dave Korn <dave.korn.cygwin@gmail.com> * plugin.c (IRONLY_SUFFIX): Revise to nicely human-readable form. (IRONLY_SUFFIX_LEN): Delete. (plugin_get_ir_dummy_bfd): Don't append IRONLY_SUFFIX. (is_ir_dummy_bfd): Don't look for suffix; check claimed flag of enclosing lang input statement instead.
2011-03-04Report plugin symbols for --verbose=N.H.J. Lu1-7/+15
2011-03-04 H.J. Lu <hongjiu.lu@intel.com> * ld.texinfo: Document --verbose[=NUMBER]. * lexsup.c (ld_options): Update --verbose. (parse_args): Set report_plugin_symbols. * plugin.c (report_plugin_symbols): New. (get_symbols): Report plugin symbols if report_plugin_symbols is TRUE. * plugin.h (report_plugin_symbols): New.
2011-02-26Add entry_symbol chain into non_ironly_hash.H.J. Lu1-2/+9
2011-02-24 H.J. Lu <hongjiu.lu@intel.com> PR ld/12507 * plugin.c (get_symbols): Don't check entry symbol here. (init_non_ironly_hash): Add entry_symbol chain into non_ironly_hash.
2011-02-24Don't mark entry symbol IR only.H.J. Lu1-2/+4
2011-02-24 H.J. Lu <hongjiu.lu@intel.com> PR ld/12507 * plugin.c (get_symbols): Don't mark entry symbol IR only.
2011-02-14 * ldmain.c (remove_output): Rename to..Alan Modra1-6/+1
(ld_cleanup): ..this. Call bfd_cache_close_all and plugin_call_cleanup. (main): Adjust. * plugin.c (plugin_call_cleanup): Make global. (plugin_load_plugins): Don't register plugin_call_cleanup with xatexit. * plugin.h (plugin_call_cleanup): Declare.
2011-01-22bfd/Richard Sandiford1-0/+2
* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Ignore common sections too. ld/ * plugin.c (plugin_get_ir_dummy_bfd): Copy across the bfd's private data and GP size.
2011-01-14 * ldmain.c (main): Flush stdout before and stderr after printingAlan Modra1-1/+3
message. * ldmisc.c (einfo): Similarly. * plugin.c (message): Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/xtensaelf.em: Likewise. * emulparams/elf32mcore.sh: Use einfo rather than printf. * emultempl/beos.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise.
2011-01-05Check if a bfd is NULL before accessing its flags field.H.J. Lu1-1/+2
2011-01-05 H.J. Lu <hongjiu.lu@intel.com> PR ld/12364 * plugin.c (get_symbols): Check if owner_sec->owner is NULL before accessing its flags field.
2010-12-06Don't add the trailing `\n' for LDPL_ERROR.H.J. Lu1-2/+2
2010-12-06 H.J. Lu <hongjiu.lu@intel.com> PR ld/12288 * plugin.c (message): Don't add the trailing `\n' for LDPL_ERROR.
2010-12-06Use putchar for the trailing `\n' in plugin message.H.J. Lu1-1/+1
bfd/ 2010-12-06 Dmitry Gorbachev <d.g.gorbachev@gmail.com> PR ld/12288 * plugin.c (message): Add putchar for the trailing `\n'. ld/ 2010-12-06 Dmitry Gorbachev <d.g.gorbachev@gmail.com> PR ld/12288 * plugin.c (message): Use putchar for the trailing `\n'.
2010-12-06Call xatexit with plugin_call_cleanup.H.J. Lu1-6/+10
2010-12-06 H.J. Lu <hongjiu.lu@intel.com> Dmitry Gorbachev <d.g.gorbachev@gmail.com> PR ld/12289 * ldmain.c (main): Don't call plugin_call_cleanup. * plugin.c (plugin_call_cleanup): Make it static. (message): Don't call plugin_call_cleanup. (plugin_load_plugins): Call xatexit with plugin_call_cleanup.
2010-12-06Call plugin_call_cleanup on plugin fatal error.H.J. Lu1-0/+3
2010-12-05 H.J. Lu <hongjiu.lu@intel.com> PR ld/12289 * plugin.c (message): Call plugin_call_cleanup on fatal error.
2010-12-06Add a space after `:' in plugin error message.H.J. Lu1-1/+2
2010-12-05 H.J. Lu <hongjiu.lu@intel.com> * plugin.c (message): Add a space after `:' in error message.
2010-12-06Add `%P' on error in plugin message.H.J. Lu1-1/+1
2010-12-06Add the trailing `\n' to einfo in plugin.c.H.J. Lu1-6/+6
2010-12-05 H.J. Lu <hongjiu.lu@intel.com> * plugin.c (asymbol_from_plugin_symbol): Add the trailing `\n' to einfo. (get_symbols): Likewise. (plugin_notice): Likewise. (plugin_multiple_definition): Likewise.
2010-12-06Add the trailing `\n' to pluin message.H.J. Lu1-1/+3
2010-12-05 H.J. Lu <hongjiu.lu@intel.com> PR ld/12288 * plugin.c (message): Add the trailing `\n'.
2010-12-06Properly convert LTO plugin visibility to ELF visibility.H.J. Lu1-4/+25
ld/ 2010-12-05 H.J. Lu <hongjiu.lu@intel.com> * plugin.c (asymbol_from_plugin_symbol): Properly convert LTO plugin visibility to ELF visibility. (is_visible_from_outside): Re-indent. ld/testsuite/ 2010-12-05 H.J. Lu <hongjiu.lu@intel.com> * ld-plugin/plugin-vis-1.d: Updated.
2010-11-21Re-indent plugin code.H.J. Lu1-95/+97
2010-11-21 H.J. Lu <hongjiu.lu@intel.com> * ldfile.c: Re-indent plugin code. * ldlang.c: Likewise. * ldmain.c: Likewise. * plugin.c: Likewise.
2010-11-20Set alignment of common plugin symbol to 1 for For ELF targets.H.J. Lu1-0/+3
2010-11-20 H.J. Lu <hongjiu.lu@intel.com> PR ld/12246 * plugin.c (asymbol_from_plugin_symbol): Set alignment of common symbol to 1 for For ELF targets.
2010-11-19 * plugin.c (is_visible_from_outside): New function.Dave Korn1-8/+54
(get_symbols): Use it.
2010-11-05 * plugin.h (plugin_active_plugins_p): New prototype.Dave Korn1-6/+18
(is_ir_dummy_bfd): Delete prototype. * plugin.c: Fix formatting issues. (is_ir_dummy_bfd): Make static. (plugin_active_plugins_p): New function. * ldfile.c (ldfile_try_open_bfd): Use it to save work if no plugins are loaded. Always close file descriptor after claim handler returns. * ldmain.c (add_archive_element): Likewise.
2010-11-04 * plugin.c (is_ir_dummy_bfd): Don't segfault on NULL abfd.Alan Modra1-1/+5
2010-10-25 * plugin.c (plugin_get_ir_dummy_bfd): Set bfd_use_reserved_id.Alan Modra1-5/+7
Formatting.
2010-10-20 * plugin.c (get_symbols): Check symbol type correctly.Dave Korn1-1/+1
2010-10-15Provide win32-based dlapi replacements on windows platforms without dlfcn.h.Dave Korn1-0/+28
ld/ChangeLog: * configure.in: If <dlfcn.h> can't be found, try for <Windows.h> * configure: Regenerate. * config.in: Likewise. * plugin.c [!HAVE_DLFCN_H && HAVE_WINDOWS_H] (dlopen): Provide trival LoadLibrary-based replacement for Windows systems. [!HAVE_DLFCN_H && HAVE_WINDOWS_H] (dlsym): Likewise trivial replacement based on GetProcAddress. [!HAVE_DLFCN_H && HAVE_WINDOWS_H] (dlsym): Likewise FreeLibrary. * sysdep.h: Don't infer presence of <dlfcn.h> from ENABLE_PLUGINS anymore, use its own guard.
2010-10-15Fix potential use-after-free bugs.Dave Korn1-3/+5
ld/ChangeLog: * plugin.c (add_input_file): Take copy of input string. (add_input_library): Likewise. (set_extra_library_path): Likewise.
2010-10-14Applied patch series for LD plugin interface (six parts).Dave Korn1-0/+795
[PATCH] Add infrastructure for plugin API; functionality to follow. include/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 1/6). * plugin-api.h (LDPT_GNU_LD_VERSION): New ld_plugin_tag enum member. ld/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 1/6). * configure.in: Add AC_CHECKs for file io and dlfcn headers and functions and AC_SEARCH for -ldl. (enable_plugins): New shell variable set if above tests find dlopen functionality. (ENABLE_PLUGINS): Add related automake conditional. * configure: Regenerate. * config.in: Likewise. * Makefile.am (PLUGIN_C): Declare plugin C source file, conditional on ENABLE_PLUGINS being defined. (PLUGIN_H): Likewise for header file. (PLUGIN_OBJECT): Likewise for object file. (PLUGIN_CFLAGS): Likewise -D flag required to compile plugin support. (AM_CPPFLAGS): Use PLUGIN_CFLAGS. (CFILES): Use PLUGIN_C. (HFILES): Use PLUGIN_H. (OFILES): Use PLUGIN_OBJECT. (ld_new_SOURCES): Use PLUGIN_C. (noinst_LTLIBRARIES)[ENABLE_PLUGINS]: Declare test plugin. (libldtestplug_la_SOURCES)[ENABLE_PLUGINS]: Add automake definition for test plugin. (libldtestplug_la_CFLAGS)[ENABLE_PLUGINS]: Likewise. (libldtestplug_la_LDFLAGS)[ENABLE_PLUGINS]: Likewise. * Makefile.in: Regenerate. * sysdep.h: Include stdarg.h, unistd.h and one of fcntl.h or sys/file.h where available. Include dlfcn.h when ENABLE_PLUGINS. (O_RDONLY): Supply default definition likewise to bfd's sysdep.h (O_WRONLY): Likewise. (O_RDWR): Likewise. (O_ACCMODE): Likewise. (O_BINARY): Likewise. (SEEK_SET): Likewise. (SEEK_CUR): Likewise. (SEEK_END): Likewise. * ldmisc.c (vfinfo): Make non-static. Add %p format char. * ldmisc.h (vfinfo): Declare extern prototype. * lexsup.c (enum option_values)[ENABLE_PLUGINS]: Add new entries for OPTION_PLUGIN and OPTION_PLUGIN_OPT. (ld_options[])[ENABLE_PLUGINS]: Add option data for the above two. (parse_args)[ENABLE_PLUGINS]: Handle them, and load all plugins once option parsing is complete. * ldmain.c (main)[ENABLE_PLUGINS]: Call plugin cleanup hooks just after lang_finish. * plugin.c: New source file. * plugin.h: Likewise new header. * testplug.c: New source file. ld/testsuite/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 1/6). * ld-bootstrap/bootstrap.exp: Skip static tests also if LD plugins are enabled. * lib/ld-lib.exp (proc regexp_diff): Extend verbose debug output. (proc set_file_contents): Write a file with the supplied content. (run_ld_link_tests): Add new 'ld' action to test linker output. (proc check_plugin_api_available): Return true if linker under test supports the plugin API. * ld-plugin/func.c: New test source file. * ld-plugin/main.c: Likewise. * ld-plugin/text.c: Likewise. * ld-plugin/plugin-1.d: New dump test output pattern script. * ld-plugin/plugin-2.d: Likewise. * ld-plugin/plugin-3.d: Likewise. * ld-plugin/plugin-4.d: Likewise. * ld-plugin/plugin-5.d: Likewise. * ld-plugin/plugin.exp: New test control script. --- [PATCH] Implement claim file and all symbols read hooks and add symbols callback. ld/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 2/6). * ldfile.c (ldfile_try_open_bfd)[ENABLE_PLUGINS]: Don't return early during compat checks if they pass, instead offer any successfully opened and accepted file to the plugin claim file hooks chain. Create a dummy bfd to accept symbols added by the plugin, if the plugin claims the file. * ldlang.c (lang_process)[ENABLE_PLUGINS]: Call plugin all symbols read hook chain before ldemul_after_open. * ldlang.h (struct lang_input_statement_struct): Add new single-bit 'claimed' flag. * plugin.c (IRONLY_SUFFIX): New macro for dummy bfd file suffix. (IRONLY_SUFFIX_LEN): Length of the above string. (plugin_get_ir_dummy_bfd): New function to create the dummy bfd used to store symbols for ir-only files. (is_ir_dummy_bfd): New function to check if a bfd is ir-only. (asymbol_from_plugin_symbol): New function converts symbol formats. (add_symbols): Call it to convert plugin syms to bfd syms and add them to the dummy bfd. * plugin.h: Add missing include guards. (plugin_get_ir_dummy_bfd): Add prototype. (is_ir_dummy_bfd): Likewise. * testplug.c (TV_MESSAGE): New helper macro. (struct claim_file): New struct. (claim_file_t): New typedef. (tag_names[]): Make static and const. (claimfiles_list): New variable. (claimfiles_tail_chain_ptr): Likewise. (last_claimfile): Likewise. (record_claim_file): Record a file to claim on a singly-linked list. (parse_symdefstr): Parse an ASCII representation of a symbol from a plugin option into the fields of a struct ld_plugin_symbol. (record_claimed_file_symbol): Use it to parse plugin option for adding a symbol. (parse_option): Parse claim file and add symbol options. (dump_tv_tag): Use TV_MESSAGE. (onload): Likewise. (onclaim_file): Make static. Use TV_MESSAGE. Scan list of files to claim and claim this file if required, adding any symbols specified. (onall_symbols_read): Make static and use TV_MESSAGE. (oncleanup): Likewise. ld/testsuite/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 2/6). * ld-plugin/plugin-3.d: Enable regexes for new functionality. * ld-plugin/plugin-5.d: Likewise. * ld-plugin/plugin-6.d: New testcase. * ld-plugin/plugin-7.d: Likewise. * ld-plugin/plugin.exp: Use 'nm' on compiled test objects to determine whether symbols in plugin arguments need an underscore prefix. Add new plugin-6.d and plugin-7.d testcases. --- [PATCH] Implement get symbols callback. ld/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 3/6). * ldmain.c (notice)[ENABLE_PLUGINS]: Call plugin_notice. * plugin.c (non_ironly_hash): Add new bfd hash table. (plugin_load_plugins): Exit early if no plugins to load. If plugins do load successfully, set notice_all flag in link info. (get_symbols): Implement. (plugin_load_plugins): Exit early if no plugins to load, else after loading plugins successfully enable notice_all mode. (init_non_ironly_hash): Lazily init non_ironly_hash table. (plugin_notice): Record symbols referenced from non-IR files in the non_ironly_hash. Suppress tracing, cref generation and nocrossrefs tracking for symbols from dummy IR bfds. * plugin.h: Fix formatting. (plugin_notice): Add prototype. * testplug.c (dumpresolutions): New global var. (parse_options): Accept "dumpresolutions". (onall_symbols_read): Get syms and dump resolutions if it was given. ld/testsuite/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 3/6). * ld-plugin/plugin-8.d: New testcase. * ld-plugin/plugin.exp: Invoke it. --- [PATCH] Implement add input file, add input lib and set extra lib path callbacks. ld/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 4/6). * ldlang.c (lang_process)[ENABLE_PLUGINS]: Move invocation of plugin_call_all_symbols_read to before setting of gc_sym_list, and open any new input files that may have been added during it. * ldmain.c (multiple_definition)[ENABLE_PLUGINS]: Call out to plugin_multiple_definition and let it have first say over what to do with the clashing definitions. * plugin.c (no_more_claiming): New boolean variable. (plugin_cached_allow_multiple_defs): Likewise. (add_input_file): Implement. (add_input_library): Likewise. (set_extra_library_path): Likewise. (plugin_call_claim_file): Don't do anything when no_more_claiming set. (plugin_call_all_symbols_read): Set it. Disable link info "allow_multiple_definition" flag, but cache its value. (plugin_multiple_definition): New function. * plugin.h (plugin_multiple_definition): Add prototype. * testplug.c (addfile_enum_t): New enumerated typedef. (add_file_t): New struct typedef. (addfiles_list): New variable. (addfiles_tail_chain_ptr): Likewise. (record_add_file): New function. (parse_option): Parse "add:", "lib:" and "dir:" options and call it. (onall_symbols_read): Iterate the list of new files, libs and dirs, adding them. ld/testsuite/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 4/6). * ld-plugin/plugin-9.d: New testcase. * ld-plugin/plugin.exp: Invoke it. --- [PATCH] Add ELF symbol visibility support to plugin interface. ld/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 5/6). * plugin.c (asymbol_from_plugin_symbol): If the bfd is an ELF bfd, find the elf symbol data and set the visibility in the st_other field. ld/testsuite/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 5/6). * ld-plugin/plugin-ignore.d: New dump test control script. * ld-plugin/plugin-vis-1.d: Likewise. * ld-plugin/plugin.exp: Add list of ELF-only tests and run them if testing on an ELF target. --- [PATCH] Add archive support to plugin interface. bfd/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 6/6). * aoutx.h (aout_link_check_ar_symbols): Take new "subsbfd" reference parameter and pass it when invoking add_archive_element callback. (aout_link_check_archive_element): Handle substitute bfd if it was set during add_archive_element callback in the above. * cofflink.c (coff_link_check_ar_symbols): Take new "subsbfd" reference parameter and pass it when invoking add_archive_element callback. (coff_link_check_archive_element): Handle substitute bfd if it was set during add_archive_element callback in the above. * ecoff.c (read_ext_syms_and_strs): New function holds symbol-reading code factored-out from ecoff_link_check_archive_element. (reread_ext_syms_and_strs): Clear old symbols and call it. (ecoff_link_check_archive_element): Use the above. Handle substitute BFD if one is set by add_archive_element callback. (ecoff_link_add_archive_symbols): Likewise allow bfd substitution. * elflink.c (elf_link_add_archive_symbols): Likewise. * linker.c (generic_link_check_archive_element): Likewise. * pdp11.c (aout_link_check_ar_symbols): Take new "subsbfd" reference parameter and pass it when invoking add_archive_element callback. (aout_link_check_archive_element): Handle substitute bfd if it was set during add_archive_element callback in the above. * vms-alpha.c (alpha_vms_link_add_archive_symbols): Handle substitute BFD if one is set by add_archive_element callback. * xcofflink.c (xcoff_link_check_dynamic_ar_symbols): Take new "subsbfd" reference parameter and pass it when invoking add_archive_element callback. (xcoff_link_check_ar_symbols): Likewise. (xcoff_link_check_archive_element): Handle bfd substitution if it was set by callback in the above. include/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 6/6). * bfdlink.h (struct_bfd_link_callbacks): Document new argument to add_archive_element callback used to return a replacement bfd which is to be added to the hash table in place of the original element. ld/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 6/6). * ldlang.c (load_symbols): Handle bfd subsitution when calling the add_archive_element callback. * ldmain.c (add_archive_element)[ENABLE_PLUGINS]: Offer the archive member to the plugins and if claimed set "subsbfd" output parameter to point to the dummy IR-only BFD. ld/testsuite/ChangeLog: 2010-10-14 Dave Korn <dave.korn.cygwin@gmail.com> Apply LD plugin patch series (part 6/6). * ld-plugin/plugin-10.d: New dump test control script. * ld-plugin/plugin-11.d: Likewise. * ld-plugin/plugin.exp: Run them. ---
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