2009-05-26 16:12:03 +02:00
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/* Plugin support for BFD.
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2016-01-01 12:25:12 +01:00
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Copyright (C) 2009-2016 Free Software Foundation, Inc.
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2009-05-26 16:12:03 +02:00
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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2012-05-16 16:26:46 +02:00
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#include "sysdep.h"
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2009-10-23 07:45:27 +02:00
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#include "bfd.h"
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#if BFD_SUPPORTS_PLUGINS
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2009-05-26 16:12:03 +02:00
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#include <assert.h>
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2012-03-20 20:24:32 +01:00
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#ifdef HAVE_DLFCN_H
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2009-05-26 16:12:03 +02:00
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#include <dlfcn.h>
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2012-03-20 20:24:32 +01:00
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#elif defined (HAVE_WINDOWS_H)
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#include <windows.h>
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#else
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#error Unknown how to handle dynamic-load-libraries.
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#endif
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2009-05-26 16:12:03 +02:00
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#include <stdarg.h>
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#include "plugin-api.h"
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#include "plugin.h"
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#include "libbfd.h"
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#include "libiberty.h"
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#include <dirent.h>
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2012-03-20 20:24:32 +01:00
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#if !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H)
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#define RTLD_NOW 0 /* Dummy value. */
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static void *
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dlopen (const char *file, int mode ATTRIBUTE_UNUSED)
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{
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return LoadLibrary (file);
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}
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static void *
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dlsym (void *handle, const char *name)
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{
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return GetProcAddress (handle, name);
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}
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static int ATTRIBUTE_UNUSED
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dlclose (void *handle)
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{
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FreeLibrary (handle);
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return 0;
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}
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static const char *
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dlerror (void)
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{
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return "Unable to load DLL.";
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}
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#endif /* !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) */
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2009-05-26 16:12:03 +02:00
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#define bfd_plugin_close_and_cleanup _bfd_generic_close_and_cleanup
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#define bfd_plugin_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
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#define bfd_plugin_new_section_hook _bfd_generic_new_section_hook
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#define bfd_plugin_get_section_contents _bfd_generic_get_section_contents
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#define bfd_plugin_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
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#define bfd_plugin_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
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#define bfd_plugin_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
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#define bfd_plugin_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data
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#define bfd_plugin_bfd_set_private_flags _bfd_generic_bfd_set_private_flags
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#define bfd_plugin_core_file_matches_executable_p generic_core_file_matches_executable_p
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#define bfd_plugin_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
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#define bfd_plugin_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
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#define bfd_plugin_get_lineno _bfd_nosymbols_get_lineno
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#define bfd_plugin_find_nearest_line _bfd_nosymbols_find_nearest_line
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Define bfd_find_line entry of BFD_JUMP_TABLE_SYMBOLS using NAME.
In https://www.sourceware.org/ml/binutils/2005-06/msg00082.html
HJ implemented bfd_find_line for DWARF2, but cheated a little in not
using the usual NAME##_find_line, saving quite a lot of boring
editing. However that shortcut probably contributed to
bfd_find_nearest_line_discriminator being implemented the same way,
and missing support for some targets.
* targets.c (BFD_JUMP_TABLE_SYMBOLS): Use NAME##_find_line.
* aout-adobe.c (aout_32_find_line): Define.
(aout_32_bfd_make_debug_symbol, aout_32_bfd_reloc_type_lookup,
aout_32_bfd_reloc_name_lookup): Define using _bfd_nosymbols define.
* aout-target.h (MY_find_line): Define.
* aout-tic30.c (MY_find_line): Define.
* binary.c (binary_find_line): Define.
* bout.c (aout_32_find_line): Define.
* coff-rs6000.c (_bfd_xcoff_find_line): Define.
* coff64-rs6000.c (rs6000_xcoff64_vec): Use coff_find_line.
(rs6000_xcoff64_aix_vec): Likewise.
* elf-bfd.h (_bfd_generic_find_line): Don't define.
* elfxx-target.h (bfd_elfNN_find_line): Define.
* i386msdos.c (msdos_find_line): Define.
* i386os9k.c (aout_32_find_line): Define.
* ieee.c (ieee_find_nearest_line, ieee_find_inliner_info): Delete func.
(ieee_find_nearest_line, ieee_find_line,
ieee_find_inliner_info): Define.
* ihex.c (ihex_find_line): Define.
* libbfd-in.h (_bfd_nosymbols_find_line): Define.
(_bfd_generic_find_line): Don't define.
* libbfd.c (_bfd_generic_find_line): Delete.
* libcoff-in.h (coff_find_line): Define.
* libecoff.h (_bfd_ecoff_find_line): Define.
* mach-o.h (bfd_mach_o_find_line): Define.
* mmo.c (mmo_find_line): Define.
* nlm-target.h (nlm_find_line): Define.
* oasys.c (oasys_find_nearest_line, oasys_find_inliner_info): Delete.
(oasys_find_nearest_line, oasys_find_line,
oasys_find_inliner_info): Define.
* pef.c (bfd_pef_find_line): Define.
* plugin.c (bfd_plugin_find_line): Define.
* ppcboot.c (ppcboot_find_line): Define.
* som.c (som_find_line): Define.
* srec.c (srec_find_line): Define.
* tekhex.c (tekhex_find_line): Define.
* versados.c (versados_find_line): Define.
* vms-alpha.c (alpha_vms_find_line): Define.
* xsym.c (bfd_sym_find_line): Define.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* libcoff.h: Regenerate.
2014-10-15 07:10:45 +02:00
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#define bfd_plugin_find_line _bfd_nosymbols_find_line
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2009-05-26 16:12:03 +02:00
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#define bfd_plugin_find_inliner_info _bfd_nosymbols_find_inliner_info
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2014-11-25 18:28:32 +01:00
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#define bfd_plugin_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
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2009-05-26 16:12:03 +02:00
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#define bfd_plugin_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
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#define bfd_plugin_read_minisymbols _bfd_generic_read_minisymbols
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#define bfd_plugin_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
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#define bfd_plugin_set_arch_mach bfd_default_set_arch_mach
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#define bfd_plugin_set_section_contents _bfd_generic_set_section_contents
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#define bfd_plugin_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
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#define bfd_plugin_bfd_relax_section bfd_generic_relax_section
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#define bfd_plugin_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
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#define bfd_plugin_bfd_link_add_symbols _bfd_generic_link_add_symbols
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#define bfd_plugin_bfd_link_just_syms _bfd_generic_link_just_syms
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#define bfd_plugin_bfd_final_link _bfd_generic_final_link
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#define bfd_plugin_bfd_link_split_section _bfd_generic_link_split_section
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#define bfd_plugin_bfd_gc_sections bfd_generic_gc_sections
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2011-07-11 17:03:09 +02:00
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#define bfd_plugin_bfd_lookup_section_flags bfd_generic_lookup_section_flags
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2009-05-26 16:12:03 +02:00
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#define bfd_plugin_bfd_merge_sections bfd_generic_merge_sections
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#define bfd_plugin_bfd_is_group_section bfd_generic_is_group_section
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#define bfd_plugin_bfd_discard_group bfd_generic_discard_group
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#define bfd_plugin_section_already_linked _bfd_generic_section_already_linked
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#define bfd_plugin_bfd_define_common_symbol bfd_generic_define_common_symbol
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2009-11-27 02:47:03 +01:00
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#define bfd_plugin_bfd_copy_link_hash_symbol_type _bfd_generic_copy_link_hash_symbol_type
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2016-04-21 16:43:00 +02:00
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#define bfd_plugin_bfd_link_check_relocs _bfd_generic_link_check_relocs
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2009-05-26 16:12:03 +02:00
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static enum ld_plugin_status
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message (int level ATTRIBUTE_UNUSED,
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const char * format, ...)
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{
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va_list args;
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va_start (args, format);
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printf ("bfd plugin: ");
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vprintf (format, args);
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2010-12-06 21:25:49 +01:00
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putchar ('\n');
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2009-05-26 16:12:03 +02:00
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va_end (args);
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return LDPS_OK;
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}
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/* Register a claim-file handler. */
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static ld_plugin_claim_file_handler claim_file;
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static enum ld_plugin_status
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register_claim_file (ld_plugin_claim_file_handler handler)
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{
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claim_file = handler;
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return LDPS_OK;
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}
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static enum ld_plugin_status
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add_symbols (void * handle,
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int nsyms,
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const struct ld_plugin_symbol * syms)
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{
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bfd *abfd = handle;
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struct plugin_data_struct *plugin_data =
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2012-11-09 09:29:34 +01:00
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bfd_alloc (abfd, sizeof (plugin_data_struct));
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2009-05-26 16:12:03 +02:00
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plugin_data->nsyms = nsyms;
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plugin_data->syms = syms;
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if (nsyms != 0)
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abfd->flags |= HAS_SYMS;
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abfd->tdata.plugin_data = plugin_data;
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return LDPS_OK;
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}
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2009-05-28 13:30:49 +02:00
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static const char *plugin_program_name;
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void
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bfd_plugin_set_program_name (const char *program_name)
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{
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plugin_program_name = program_name;
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}
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2009-05-26 16:12:03 +02:00
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2016-07-16 06:02:16 +02:00
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int
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bfd_plugin_open_input (bfd *ibfd, struct ld_plugin_input_file *file)
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2009-05-26 16:12:03 +02:00
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{
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2014-09-24 10:34:53 +02:00
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bfd *iobfd;
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2016-07-16 06:02:16 +02:00
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iobfd = ibfd;
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if (ibfd->my_archive && !bfd_is_thin_archive (ibfd->my_archive))
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iobfd = ibfd->my_archive;
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file->name = iobfd->filename;
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2014-09-24 10:34:53 +02:00
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if (!iobfd->iostream && !bfd_open_file (iobfd))
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return 0;
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2016-07-16 06:02:16 +02:00
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file->fd = fileno ((FILE *) iobfd->iostream);
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2014-09-24 10:34:53 +02:00
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2016-07-16 06:02:16 +02:00
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if (iobfd == ibfd)
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2014-09-24 10:34:53 +02:00
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{
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struct stat stat_buf;
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2016-07-16 06:02:16 +02:00
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if (fstat (file->fd, &stat_buf))
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2014-09-24 10:34:53 +02:00
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return 0;
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2016-07-16 06:02:16 +02:00
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file->offset = 0;
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file->filesize = stat_buf.st_size;
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}
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else
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{
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file->offset = ibfd->origin;
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file->filesize = arelt_size (ibfd);
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2014-09-24 10:34:53 +02:00
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}
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2016-07-16 06:02:16 +02:00
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return 1;
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}
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static int
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try_claim (bfd *abfd)
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{
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int claimed = 0;
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struct ld_plugin_input_file file;
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2014-09-24 10:34:53 +02:00
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2016-07-16 06:02:16 +02:00
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if (!bfd_plugin_open_input (abfd, &file))
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return 0;
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2014-09-24 10:34:53 +02:00
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file.handle = abfd;
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2016-07-16 06:02:16 +02:00
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off_t cur_offset = lseek (file.fd, 0, SEEK_CUR);
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2014-09-24 10:34:53 +02:00
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claim_file (&file, &claimed);
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2016-07-16 06:02:16 +02:00
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lseek (file.fd, cur_offset, SEEK_SET);
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return claimed;
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2014-09-24 10:34:53 +02:00
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}
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static int
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2015-02-11 14:01:03 +01:00
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try_load_plugin (const char *pname, bfd *abfd, int *has_plugin_p)
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2014-09-24 10:34:53 +02:00
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{
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void *plugin_handle;
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2016-03-22 04:50:18 +01:00
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struct ld_plugin_tv tv[4];
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2009-05-26 16:12:03 +02:00
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int i;
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ld_plugin_onload onload;
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enum ld_plugin_status status;
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2015-02-11 14:01:03 +01:00
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*has_plugin_p = 0;
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2009-05-26 16:12:03 +02:00
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plugin_handle = dlopen (pname, RTLD_NOW);
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if (!plugin_handle)
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{
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(*_bfd_error_handler)("%s\n", dlerror ());
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return 0;
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}
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onload = dlsym (plugin_handle, "onload");
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if (!onload)
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goto err;
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i = 0;
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tv[i].tv_tag = LDPT_MESSAGE;
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tv[i].tv_u.tv_message = message;
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++i;
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tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK;
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tv[i].tv_u.tv_register_claim_file = register_claim_file;
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++i;
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tv[i].tv_tag = LDPT_ADD_SYMBOLS;
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tv[i].tv_u.tv_add_symbols = add_symbols;
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++i;
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tv[i].tv_tag = LDPT_NULL;
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tv[i].tv_u.tv_val = 0;
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status = (*onload)(tv);
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if (status != LDPS_OK)
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goto err;
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2015-02-11 14:01:03 +01:00
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*has_plugin_p = 1;
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abfd->plugin_format = bfd_plugin_no;
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2009-05-26 16:12:03 +02:00
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if (!claim_file)
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goto err;
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2014-09-24 10:34:53 +02:00
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if (!try_claim (abfd))
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goto err;
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2015-02-11 14:01:03 +01:00
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abfd->plugin_format = bfd_plugin_yes;
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2009-05-26 16:12:03 +02:00
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return 1;
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err:
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return 0;
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}
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2015-02-11 14:01:03 +01:00
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/* There may be plugin libraries in lib/bfd-plugins. */
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static int has_plugin = -1;
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static const bfd_target *(*ld_plugin_object_p) (bfd *);
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|
|
2009-05-26 16:12:03 +02:00
|
|
|
static const char *plugin_name;
|
|
|
|
|
|
|
|
void
|
|
|
|
bfd_plugin_set_plugin (const char *p)
|
|
|
|
{
|
|
|
|
plugin_name = p;
|
2015-02-11 14:01:03 +01:00
|
|
|
has_plugin = p != NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return TRUE if a plugin library is used. */
|
|
|
|
|
|
|
|
bfd_boolean
|
|
|
|
bfd_plugin_specified_p (void)
|
|
|
|
{
|
|
|
|
return has_plugin > 0;
|
|
|
|
}
|
|
|
|
|
2016-06-20 14:10:29 +02:00
|
|
|
/* Return TRUE if ABFD can be claimed by linker LTO plugin. */
|
|
|
|
|
|
|
|
bfd_boolean
|
|
|
|
bfd_link_plugin_object_p (bfd *abfd)
|
|
|
|
{
|
|
|
|
if (ld_plugin_object_p)
|
|
|
|
return ld_plugin_object_p (abfd) != NULL;
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
2015-02-11 14:01:03 +01:00
|
|
|
extern const bfd_target plugin_vec;
|
|
|
|
|
|
|
|
/* Return TRUE if TARGET is a pointer to plugin_vec. */
|
|
|
|
|
|
|
|
bfd_boolean
|
|
|
|
bfd_plugin_target_p (const bfd_target *target)
|
|
|
|
{
|
|
|
|
return target == &plugin_vec;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Register OBJECT_P to be used by bfd_plugin_object_p. */
|
|
|
|
|
|
|
|
void
|
|
|
|
register_ld_plugin_object_p (const bfd_target *(*object_p) (bfd *))
|
|
|
|
{
|
|
|
|
ld_plugin_object_p = object_p;
|
2009-05-26 16:12:03 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2014-09-24 10:34:53 +02:00
|
|
|
load_plugin (bfd *abfd)
|
2009-05-26 16:12:03 +02:00
|
|
|
{
|
|
|
|
char *plugin_dir;
|
|
|
|
char *p;
|
|
|
|
DIR *d;
|
|
|
|
struct dirent *ent;
|
|
|
|
int found = 0;
|
|
|
|
|
2015-02-11 14:01:03 +01:00
|
|
|
if (!has_plugin)
|
|
|
|
return found;
|
|
|
|
|
2009-05-26 16:12:03 +02:00
|
|
|
if (plugin_name)
|
2015-02-11 14:01:03 +01:00
|
|
|
return try_load_plugin (plugin_name, abfd, &has_plugin);
|
2009-05-26 16:12:03 +02:00
|
|
|
|
2009-05-28 13:30:49 +02:00
|
|
|
if (plugin_program_name == NULL)
|
2015-02-11 14:01:03 +01:00
|
|
|
return found;
|
2009-05-26 16:12:03 +02:00
|
|
|
|
|
|
|
plugin_dir = concat (BINDIR, "/../lib/bfd-plugins", NULL);
|
2009-05-28 13:30:49 +02:00
|
|
|
p = make_relative_prefix (plugin_program_name,
|
2009-05-26 16:12:03 +02:00
|
|
|
BINDIR,
|
|
|
|
plugin_dir);
|
|
|
|
free (plugin_dir);
|
|
|
|
plugin_dir = NULL;
|
|
|
|
|
|
|
|
d = opendir (p);
|
|
|
|
if (!d)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
while ((ent = readdir (d)))
|
|
|
|
{
|
|
|
|
char *full_name;
|
2009-06-25 14:32:10 +02:00
|
|
|
struct stat s;
|
2015-02-11 14:01:03 +01:00
|
|
|
int valid_plugin;
|
2009-05-26 16:12:03 +02:00
|
|
|
|
|
|
|
full_name = concat (p, "/", ent->d_name, NULL);
|
2009-06-25 14:32:10 +02:00
|
|
|
if (stat(full_name, &s) == 0 && S_ISREG (s.st_mode))
|
2015-02-11 14:01:03 +01:00
|
|
|
found = try_load_plugin (full_name, abfd, &valid_plugin);
|
|
|
|
if (has_plugin <= 0)
|
|
|
|
has_plugin = valid_plugin;
|
2009-05-26 16:12:03 +02:00
|
|
|
free (full_name);
|
|
|
|
if (found)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
free (p);
|
|
|
|
if (d)
|
|
|
|
closedir (d);
|
|
|
|
|
|
|
|
return found;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const bfd_target *
|
|
|
|
bfd_plugin_object_p (bfd *abfd)
|
|
|
|
{
|
2015-02-11 14:01:03 +01:00
|
|
|
if (ld_plugin_object_p)
|
|
|
|
return ld_plugin_object_p (abfd);
|
|
|
|
|
2016-06-18 23:15:31 +02:00
|
|
|
if (abfd->plugin_format == bfd_plugin_unknown && !load_plugin (abfd))
|
2009-05-26 16:12:03 +02:00
|
|
|
return NULL;
|
|
|
|
|
2015-02-11 14:01:03 +01:00
|
|
|
return abfd->plugin_format == bfd_plugin_yes ? abfd->xvec : NULL;
|
2009-05-26 16:12:03 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Copy any private info we understand from the input bfd
|
|
|
|
to the output bfd. */
|
|
|
|
|
|
|
|
static bfd_boolean
|
|
|
|
bfd_plugin_bfd_copy_private_bfd_data (bfd *ibfd ATTRIBUTE_UNUSED,
|
|
|
|
bfd *obfd ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Copy any private info we understand from the input section
|
|
|
|
to the output section. */
|
|
|
|
|
|
|
|
static bfd_boolean
|
|
|
|
bfd_plugin_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
|
|
|
|
asection *isection ATTRIBUTE_UNUSED,
|
|
|
|
bfd *obfd ATTRIBUTE_UNUSED,
|
|
|
|
asection *osection ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Copy any private info we understand from the input symbol
|
|
|
|
to the output symbol. */
|
|
|
|
|
|
|
|
static bfd_boolean
|
|
|
|
bfd_plugin_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
|
|
|
|
asymbol *isymbol ATTRIBUTE_UNUSED,
|
|
|
|
bfd *obfd ATTRIBUTE_UNUSED,
|
|
|
|
asymbol *osymbol ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bfd_boolean
|
|
|
|
bfd_plugin_bfd_print_private_bfd_data (bfd *abfd ATTRIBUTE_UNUSED, PTR ptr ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static char *
|
|
|
|
bfd_plugin_core_file_failing_command (bfd *abfd ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
bfd_plugin_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
|
2010-08-18 14:24:13 +02:00
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
bfd_plugin_core_file_pid (bfd *abfd ATTRIBUTE_UNUSED)
|
2009-05-26 16:12:03 +02:00
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static long
|
|
|
|
bfd_plugin_get_symtab_upper_bound (bfd *abfd)
|
|
|
|
{
|
|
|
|
struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data;
|
|
|
|
long nsyms = plugin_data->nsyms;
|
|
|
|
|
|
|
|
BFD_ASSERT (nsyms >= 0);
|
|
|
|
|
|
|
|
return ((nsyms + 1) * sizeof (asymbol *));
|
|
|
|
}
|
|
|
|
|
|
|
|
static flagword
|
|
|
|
convert_flags (const struct ld_plugin_symbol *sym)
|
|
|
|
{
|
|
|
|
switch (sym->def)
|
2013-01-10 21:03:55 +01:00
|
|
|
{
|
2009-05-26 16:12:03 +02:00
|
|
|
case LDPK_DEF:
|
|
|
|
case LDPK_COMMON:
|
|
|
|
case LDPK_UNDEF:
|
|
|
|
return BSF_GLOBAL;
|
|
|
|
|
|
|
|
case LDPK_WEAKUNDEF:
|
|
|
|
case LDPK_WEAKDEF:
|
|
|
|
return BSF_GLOBAL | BSF_WEAK;
|
|
|
|
|
|
|
|
default:
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static long
|
|
|
|
bfd_plugin_canonicalize_symtab (bfd *abfd,
|
|
|
|
asymbol **alocation)
|
|
|
|
{
|
|
|
|
struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data;
|
|
|
|
long nsyms = plugin_data->nsyms;
|
|
|
|
const struct ld_plugin_symbol *syms = plugin_data->syms;
|
|
|
|
static asection fake_section;
|
|
|
|
static asection fake_common_section;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
fake_section.name = ".text";
|
|
|
|
fake_common_section.flags = SEC_IS_COMMON;
|
|
|
|
|
|
|
|
for (i = 0; i < nsyms; i++)
|
|
|
|
{
|
2013-01-10 21:03:55 +01:00
|
|
|
asymbol *s = bfd_alloc (abfd, sizeof (asymbol));
|
2009-05-26 16:12:03 +02:00
|
|
|
|
|
|
|
BFD_ASSERT (s);
|
|
|
|
alocation[i] = s;
|
|
|
|
|
|
|
|
s->the_bfd = abfd;
|
|
|
|
s->name = syms[i].name;
|
|
|
|
s->value = 0;
|
|
|
|
s->flags = convert_flags (&syms[i]);
|
|
|
|
switch (syms[i].def)
|
|
|
|
{
|
|
|
|
case LDPK_COMMON:
|
|
|
|
s->section = &fake_common_section;
|
|
|
|
break;
|
|
|
|
case LDPK_UNDEF:
|
|
|
|
case LDPK_WEAKUNDEF:
|
|
|
|
s->section = bfd_und_section_ptr;
|
|
|
|
break;
|
|
|
|
case LDPK_DEF:
|
|
|
|
case LDPK_WEAKDEF:
|
|
|
|
s->section = &fake_section;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
s->udata.p = (void *) &syms[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
return nsyms;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
bfd_plugin_print_symbol (bfd *abfd ATTRIBUTE_UNUSED,
|
|
|
|
PTR afile ATTRIBUTE_UNUSED,
|
|
|
|
asymbol *symbol ATTRIBUTE_UNUSED,
|
|
|
|
bfd_print_symbol_type how ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
bfd_plugin_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
|
|
|
|
asymbol *symbol,
|
|
|
|
symbol_info *ret)
|
|
|
|
{
|
|
|
|
bfd_symbol_info (symbol, ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Make an empty symbol. */
|
|
|
|
|
|
|
|
static asymbol *
|
|
|
|
bfd_plugin_make_empty_symbol (bfd *abfd)
|
|
|
|
{
|
Updated sources to avoid using the identifier name "new", which is a
keyword in c++.
* bfd/aoutx.h (NAME (aout, make_empty_symbol)): Rename variable
new to new_symbol.
* bfd/coffgen.c (coff_make_empty_symbol)
(coff_bfd_make_debug_symbol): Rename variable new to new_symbol.
* bfd/cpu-ia64-opc.c (ext_reg, ins_imms_scaled): Rename variable
new to new_insn.
* bfd/doc/chew.c (newentry, add_intrinsic): Rename variable new to
new_d.
* bfd/ecoff.c (_bfd_ecoff_make_empty_symbol): Rename variable new
to new_symbol.
* bfd/elf32-m68k.c (elf_m68k_get_got_entry_type): Rename argument
new to new_reloc.
* bfd/hash.c (bfd_hash_lookup): Rename variable new to new_string.
* bfd/ieee.c (ieee_make_empty_symbol): Rename variable new to
new_symbol.
* bfd/linker.c (bfd_new_link_order): Rename variable new to
new_lo.
* bfd/mach-o.c (bfd_mach_o_sizeof_headers): Rename variable new to
symbol.
* bfd/oasys.c (oasys_make_empty_symbol): Rename variable new to
new_symbol_type.
* bfd/pdp11.c (NAME (aout, make_empty_symbol)): Rename variable
new to new_symbol_type.
* bfd/plugin.c (bfd_plugin_make_empty_symbol): Rename variable new
to new_symbol.
* bfd/rs6000-core.c (CoreHdr, VmInfo): Rename union member new to
new_dump.
(read_hdr, rs6000coff_core_p)
(rs6000coff_core_file_matches_executable_p)
(rs6000coff_core_file_failing_command)
(rs6000coff_core_file_failing_signal): Updated function to use new
union member name.
* bfd/som.c (som_make_empty_symbol): Rename variable new to
new_symbol_type.
* bfd/syms.c (_bfd_generic_make_empty_symbol): Rename variable new
to new_symbol.
* bfd/tekhex.c (first_phase, tekhex_make_empty_symbol): Rename
variable new to new_symbol.
* binutils/nlmconv.c (main): Rename variable new to new_name.
* gas/config/tc-arm.c (insert_reg_alias): Rename variable new to
new_reg.
* gas/config/tc-dlx.c (parse_operand): Rename variable new to
new_pos.
* gas/config/tc-ia64.c (ia64_gen_real_reloc_type): Rename variable
new to newr.
* gas/config/tc-mcore.c (parse_exp, parse_imm): Rename variable
new to new_pointer.
* gas/config/tc-microblaze.c (parse_exp, parse_imm, check_got):
Change name from new to new_pointer.
* gas/config/tc-or32.c (parse_operand): Rename variable new to
new_pointer.
* gas/config/tc-pdp11.c (md_assemble): Rename variable new to
new_pointer.
* gas/config/tc-pj.c (alias): Change argument new to new_name.
* gas/config/tc-score.c (s3_build_score_ops_hsh): Rename variable
new to new_opcode. (s3_build_dependency_insn_hsh) Rename variable
new to new_i2n. (s3_convert): Rename variables old and new to
r_old and r_new.
* gas/config/tc-score7.c (s7_build_score_ops_hsh): Rename variable
new to new_opcode. (s7_build_dependency_insn_hsh): Rename variable
new to new_i2d. (s7_b32_relax_to_b16, s7_convert_frag): Rename
variables old and new to r_old and r_new.
* gas/config/tc-sh.c (parse_exp): Rename variable new to
new_pointer.
* gas/config/tc-sh64.c (shmedia_parse_exp): Rename variable new to
new_pointer.
* gas/config/tc-tic4x.c (tic4x_operand_parse): Rename variable new
to new_pointer.
* gas/config/tc-z8k.c (parse_exp): Rename variable new to
new_pointer.
* gas/listing.c (listing_newline): Rename variable new to new_i.
* ld/ldexp.c (exp_intop, exp_bigintop, exp_relop, exp_binop)
(exp_trinop, exp_unop, exp_nameop, exp_assop): Rename variable new
to new_e.
* ld/ldfile.c (ldfile_add_library_path): Rename variable new to
new_dirs. (ldfile_add_arch): Rename variable new to new_arch.
* ld/ldlang.c (new_statement, lang_final, lang_add_wild)
(lang_target, lang_add_fill, lang_add_data, lang_add_assignment)
(lang_add_insert): Rename variable new to new_stmt. (new_afile):
Added missing cast. (lang_memory_region_lookup): Rename variable
new to new_region. (init_os): Rename variable new to
new_userdata. (lang_add_section): Rename variable new to
new_section. (ldlang_add_undef): Rename variable new to
new_undef. (realsymbol): Rename variable new to new_name.
* opcodes/z8kgen.c (internal, gas): Rename variable new to new_op.
Updated sources to avoid using the identifier name "template",
which is a keyword in c++.
* bfd/elf32-arm.c (struct stub_def): Rename member template to
template_sequence. (arm_build_one_stub,
find_stub_size_and_template, arm_size_one_stub, arm_map_one_stub):
Rename variable template to template_sequence.
* bfd/elfxx-ia64.c (elfNN_ia64_relax_br, elfNN_ia64_relax_brl):
Rename variable template to template_val.
* gas/config/tc-arm.c (struct asm_cond, struct asm_psr, struct
asm_barrier_opt): Change member template to
template_name. (md_begin): Update code to reflect new member
names.
* gas/config/tc-i386.c (struct templates, struct _i386_insn)
(match_template, cpu_flags_match, match_reg_size, match_mem_size)
(operand_size_match, md_begin, i386_print_statistics, pi)
(build_vex_prefix, md_assemble, parse_insn, optimize_imm)
(optimize_disp): Updated code to use new names. (parse_insn):
Added casts.
* gas/config/tc-ia64.c (dot_template, emit_one_bundle): Updated
code to use new names.
* gas/config/tc-score.c (struct s3_asm_opcode): Renamed member
template to template_name. (s3_parse_16_32_inst, s3_parse_48_inst,
s3_do_macro_ldst_label, s3_build_score_ops_hsh): Update code to
use new names.
* gas/config/tc-score7.c (struct s7_asm_opcode): Renamed member
template to template_name. (s7_parse_16_32_inst,
s7_do_macro_ldst_label, s7_build_score_ops_hsh): Update code to
use new names.
* gas/config/tc-tic30.c (md_begin, struct tic30_insn)
(md_assemble): Update code to use new names.
* gas/config/tc-tic54x.c (struct _tic54x_insn, md_begin)
(optimize_insn, tic54x_parse_insn, next_line_shows_parallel):
Update code to use new names.
* include/opcode/tic30.h (template): Rename type template to
insn_template. Updated code to use new name.
* include/opcode/tic54x.h (template): Rename type template to
insn_template.
* opcodes/cris-dis.c (bytes_to_skip): Update code to use new name.
* opcodes/i386-dis.c (putop): Update code to use new name.
* opcodes/i386-gen.c (process_i386_opcodes): Update code to use
new name.
* opcodes/i386-opc.h (struct template): Rename struct template to
insn_template. Update code accordingly.
* opcodes/i386-tbl.h (i386_optab): Update type to use new name.
* opcodes/ia64-dis.c (print_insn_ia64): Rename variable template
to template_val.
* opcodes/tic30-dis.c (struct instruction, get_tic30_instruction):
Update code to use new name.
* opcodes/tic54x-dis.c (has_lkaddr, get_insn_size)
(print_parallel_instruction, print_insn_tic54x, tic54x_get_insn):
Update code to use new name.
* opcodes/tic54x-opc.c (tic54x_unknown_opcode, tic54x_optab):
Update type to new name.
2009-08-30 00:11:02 +02:00
|
|
|
asymbol *new_symbol = bfd_zalloc (abfd, sizeof (asymbol));
|
|
|
|
if (new_symbol == NULL)
|
|
|
|
return new_symbol;
|
|
|
|
new_symbol->the_bfd = abfd;
|
|
|
|
return new_symbol;
|
2009-05-26 16:12:03 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
bfd_plugin_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
|
|
|
|
struct bfd_link_info *info ATTRIBUTE_UNUSED)
|
|
|
|
{
|
|
|
|
BFD_ASSERT (0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
const bfd_target plugin_vec =
|
|
|
|
{
|
|
|
|
"plugin", /* Name. */
|
|
|
|
bfd_target_unknown_flavour,
|
|
|
|
BFD_ENDIAN_LITTLE, /* Target byte order. */
|
|
|
|
BFD_ENDIAN_LITTLE, /* Target headers byte order. */
|
|
|
|
(HAS_RELOC | EXEC_P | /* Object flags. */
|
|
|
|
HAS_LINENO | HAS_DEBUG |
|
|
|
|
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
|
|
|
|
(SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
|
|
|
|
| SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
|
|
|
|
0, /* symbol_leading_char. */
|
|
|
|
'/', /* ar_pad_char. */
|
|
|
|
15, /* ar_max_namelen. */
|
Fix BFD format matching for x86_64-w64-mingw32 -m32 LTO.
In <https://sourceware.org/ml/binutils/2015-12/msg00190.html> (commit
4a07dc81356ed8728e204e9aabeb256703c59aef), Kwok fixed a problem with
the template used for a dummy BFD for an IR file for LTO on MinGW,
where the input and output formats are not the same.
A problem, however, remains in the case of linking for
x86_64-w64-mingw32 -m32, where LTO linking reports an ambiguity
between the pe-i386 and pei-i386 formats. An object (pe-i386) with
plugin data is being tested by the linker to see what formats match.
The default format initially set by the linker when
bfd_check_format_matches is called is pei-i386 (as that's the output
format from the linker script), which does not match, so the function
goes on to the loop over possible BFD vectors. The pe-i386 vector
matches, as it should. One other vector matches: the plugin vector.
bfd_check_format_matches tests a vector for matching by temporarily
modifying the BFD object to use that vector then using
_bfd_check_format on it. So the BFD object is temporarily using
plugin_vec. _bfd_check_format ends up using bfd_plugin_object_p which
uses plugin_object_p from ld which uses plugin_get_ir_dummy_bfd which
succeeds, having created a BFD based on link_info.output_bfd (because
srctemplate is the BFD temporarily using plugin_vec, even after Kwok's
patch link_info.output_bfd is all that's available to base the dummy
BFD on). So we end up with a match from the plugin vector which uses
the pei-i386 vector even though the pei-i386 vector itself does not
match the input object. (In the i686-mingw32 case, as opposed to this
multilib case, pe-i386 is the default BFD target, which would
short-circuit that logic.)
There are two cases of the linker handling inputs with a plugin: they
may be inputs that are also accepted by some non-plugin BFD format, as
here, or they may be a format that would not be recognized at all, as
with some tests in the ld testsuite. In the former case, there is no
need for BFD to accept the objects using the plugin vector, as the
linker has its own logic to allow plugins to claim objects accepted by
some other BFD vector. Thus, this patch arranges for the plugin
vector to have the lowest match priority, and for the priority from
that vector to be used in the relevant case (the attempted match to
the plugin vector results in TEMP pointing to the pei-i386 vector).
Tested for GCC and Binutils testsuites for x86_64-pc-linux-gnu, as
well as verifying that it fixes the observed LTO issue for
x86_64-w64-mingw32.
* plugin.c (plugin_vec): Set match priority to 255.
* format.c (bfd_check_format_matches) [BFD_SUPPORTS_PLUGINS]: When
matching against the plugin vector, take priority from there not
from TEMP.
2016-02-16 01:27:11 +01:00
|
|
|
255, /* match priority. */
|
2009-05-26 16:12:03 +02:00
|
|
|
|
|
|
|
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
|
|
|
|
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
|
|
|
|
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
|
|
|
|
bfd_getl64, bfd_getl_signed_64, bfd_putl64,
|
|
|
|
bfd_getl32, bfd_getl_signed_32, bfd_putl32,
|
|
|
|
bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
|
|
|
|
|
|
|
|
{ /* bfd_check_format. */
|
|
|
|
_bfd_dummy_target,
|
|
|
|
bfd_plugin_object_p,
|
|
|
|
bfd_generic_archive_p,
|
|
|
|
_bfd_dummy_target
|
|
|
|
},
|
|
|
|
{ /* bfd_set_format. */
|
|
|
|
bfd_false,
|
2010-12-13 00:50:47 +01:00
|
|
|
bfd_false,
|
2009-05-26 16:12:03 +02:00
|
|
|
_bfd_generic_mkarchive,
|
|
|
|
bfd_false,
|
|
|
|
},
|
|
|
|
{ /* bfd_write_contents. */
|
|
|
|
bfd_false,
|
|
|
|
bfd_false,
|
|
|
|
_bfd_write_archive_contents,
|
|
|
|
bfd_false,
|
|
|
|
},
|
|
|
|
|
|
|
|
BFD_JUMP_TABLE_GENERIC (bfd_plugin),
|
|
|
|
BFD_JUMP_TABLE_COPY (bfd_plugin),
|
|
|
|
BFD_JUMP_TABLE_CORE (bfd_plugin),
|
2016-05-25 18:46:47 +02:00
|
|
|
#ifdef USE_64_BIT_ARCHIVE
|
|
|
|
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
|
|
|
|
#else
|
2009-05-26 16:12:03 +02:00
|
|
|
BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
|
2016-05-25 18:46:47 +02:00
|
|
|
#endif
|
2009-05-26 16:12:03 +02:00
|
|
|
BFD_JUMP_TABLE_SYMBOLS (bfd_plugin),
|
|
|
|
BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
|
|
|
|
BFD_JUMP_TABLE_WRITE (bfd_plugin),
|
|
|
|
BFD_JUMP_TABLE_LINK (bfd_plugin),
|
|
|
|
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
|
|
|
|
|
|
|
|
NULL,
|
|
|
|
|
|
|
|
NULL /* backend_data. */
|
|
|
|
};
|
2009-10-23 07:45:27 +02:00
|
|
|
#endif /* BFD_SUPPORTS_PLUGIN */
|