X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=bfd%2Fplugin.c;h=f30eadef4c162a2746bef6327621f34bf443b6cf;hb=refs%2Fheads%2Ftizen_3.0.m1_tv;hp=5d34f859b75f0e8eab12e80d3e12ea9ed425a7e3;hpb=0aabe54e62224040844b7a5516fd832e078056b4;p=platform%2Fupstream%2Fbinutils.git diff --git a/bfd/plugin.c b/bfd/plugin.c index 5d34f85..f30eade 100644 --- a/bfd/plugin.c +++ b/bfd/plugin.c @@ -1,6 +1,5 @@ /* Plugin support for BFD. - Copyright 2009, 2010, 2011 - Free Software Foundation, Inc. + Copyright (C) 2009-2014 Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -19,21 +18,57 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -#include "config.h" +#include "sysdep.h" #include "bfd.h" #if BFD_SUPPORTS_PLUGINS #include +#ifdef HAVE_DLFCN_H #include +#elif defined (HAVE_WINDOWS_H) +#include +#else +#error Unknown how to handle dynamic-load-libraries. +#endif #include #include "plugin-api.h" -#include "sysdep.h" #include "plugin.h" #include "libbfd.h" #include "libiberty.h" #include +#if !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) + +#define RTLD_NOW 0 /* Dummy value. */ + +static void * +dlopen (const char *file, int mode ATTRIBUTE_UNUSED) +{ + return LoadLibrary (file); +} + +static void * +dlsym (void *handle, const char *name) +{ + return GetProcAddress (handle, name); +} + +static int ATTRIBUTE_UNUSED +dlclose (void *handle) +{ + FreeLibrary (handle); + return 0; +} + +static const char * +dlerror (void) +{ + return "Unable to load DLL."; +} + +#endif /* !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) */ + #define bfd_plugin_close_and_cleanup _bfd_generic_close_and_cleanup #define bfd_plugin_bfd_free_cached_info _bfd_generic_bfd_free_cached_info #define bfd_plugin_new_section_hook _bfd_generic_new_section_hook @@ -48,6 +83,7 @@ #define bfd_plugin_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) #define bfd_plugin_get_lineno _bfd_nosymbols_get_lineno #define bfd_plugin_find_nearest_line _bfd_nosymbols_find_nearest_line +#define bfd_plugin_find_line _bfd_nosymbols_find_line #define bfd_plugin_find_inliner_info _bfd_nosymbols_find_inliner_info #define bfd_plugin_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol #define bfd_plugin_read_minisymbols _bfd_generic_read_minisymbols @@ -57,12 +93,12 @@ #define bfd_plugin_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents #define bfd_plugin_bfd_relax_section bfd_generic_relax_section #define bfd_plugin_bfd_link_hash_table_create _bfd_generic_link_hash_table_create -#define bfd_plugin_bfd_link_hash_table_free _bfd_generic_link_hash_table_free #define bfd_plugin_bfd_link_add_symbols _bfd_generic_link_add_symbols #define bfd_plugin_bfd_link_just_syms _bfd_generic_link_just_syms #define bfd_plugin_bfd_final_link _bfd_generic_final_link #define bfd_plugin_bfd_link_split_section _bfd_generic_link_split_section #define bfd_plugin_bfd_gc_sections bfd_generic_gc_sections +#define bfd_plugin_bfd_lookup_section_flags bfd_generic_lookup_section_flags #define bfd_plugin_bfd_merge_sections bfd_generic_merge_sections #define bfd_plugin_bfd_is_group_section bfd_generic_is_group_section #define bfd_plugin_bfd_discard_group bfd_generic_discard_group @@ -100,7 +136,7 @@ add_symbols (void * handle, { bfd *abfd = handle; struct plugin_data_struct *plugin_data = - bfd_alloc (abfd, sizeof (plugin_data_struct));; + bfd_alloc (abfd, sizeof (plugin_data_struct)); plugin_data->nsyms = nsyms; plugin_data->syms = syms; @@ -121,9 +157,54 @@ bfd_plugin_set_program_name (const char *program_name) } static int -try_load_plugin (const char *pname) +try_claim (bfd *abfd) +{ + int claimed = 0; + struct ld_plugin_input_file file; + bfd *iobfd; + + file.name = abfd->filename; + + if (abfd->my_archive) + { + iobfd = abfd->my_archive; + file.offset = abfd->origin; + file.filesize = arelt_size (abfd); + } + else + { + iobfd = abfd; + file.offset = 0; + file.filesize = 0; + } + + if (!iobfd->iostream && !bfd_open_file (iobfd)) + return 0; + + file.fd = fileno ((FILE *) iobfd->iostream); + + if (!abfd->my_archive) + { + struct stat stat_buf; + if (fstat (file.fd, &stat_buf)) + return 0; + file.filesize = stat_buf.st_size; + } + + file.handle = abfd; + off_t cur_offset = lseek(file.fd, 0, SEEK_CUR); + claim_file (&file, &claimed); + lseek(file.fd, cur_offset, SEEK_SET); + if (!claimed) + return 0; + + return 1; +} + +static int +try_load_plugin (const char *pname, bfd *abfd) { - static void *plugin_handle; + void *plugin_handle; int tv_size = 4; struct ld_plugin_tv tv[tv_size]; int i; @@ -165,6 +246,9 @@ try_load_plugin (const char *pname) if (!claim_file) goto err; + if (!try_claim (abfd)) + goto err; + return 1; err: @@ -181,7 +265,7 @@ bfd_plugin_set_plugin (const char *p) } static int -load_plugin (void) +load_plugin (bfd *abfd) { char *plugin_dir; char *p; @@ -190,7 +274,7 @@ load_plugin (void) int found = 0; if (plugin_name) - return try_load_plugin (plugin_name); + return try_load_plugin (plugin_name, abfd); if (plugin_program_name == NULL) return 0; @@ -211,9 +295,17 @@ load_plugin (void) char *full_name; struct stat s; +#ifdef BFD_PLUGIN_LTO_NAME +#define STRINGIFY(x) STRINGIFY_(x) +#define STRINGIFY_(x) #x + if (strcmp(ent->d_name, STRINGIFY(BFD_PLUGIN_LTO_NAME))) { + continue; + } +#endif + full_name = concat (p, "/", ent->d_name, NULL); if (stat(full_name, &s) == 0 && S_ISREG (s.st_mode)) - found = try_load_plugin (full_name); + found = try_load_plugin (full_name, abfd); free (full_name); if (found) break; @@ -231,53 +323,7 @@ load_plugin (void) static const bfd_target * bfd_plugin_object_p (bfd *abfd) { - int claimed = 0; - struct ld_plugin_input_file file; - bfd *iobfd; - static int have_loaded = 0; - static int have_plugin = 0; - - if (!have_loaded) - { - have_loaded = 1; - have_plugin = load_plugin (); - } - if (!have_plugin) - return NULL; - - file.name = abfd->filename; - - if (abfd->my_archive) - { - iobfd = abfd->my_archive; - file.offset = abfd->origin; - file.filesize = arelt_size (abfd); - } - else - { - iobfd = abfd; - file.offset = 0; - file.filesize = 0; - } - - if (!iobfd->iostream && !bfd_open_file (iobfd)) - return NULL; - - file.fd = fileno ((FILE *) iobfd->iostream); - - if (!abfd->my_archive) - { - struct stat stat_buf; - if (fstat (file.fd, &stat_buf)) - return NULL; - file.filesize = stat_buf.st_size; - } - - file.handle = abfd; - off_t cur_offset = lseek(file.fd, 0, SEEK_CUR); - claim_file (&file, &claimed); - lseek(file.fd, cur_offset, SEEK_SET); - if (!claimed) + if (!load_plugin (abfd)) return NULL; return abfd->xvec; @@ -363,7 +409,7 @@ static flagword convert_flags (const struct ld_plugin_symbol *sym) { switch (sym->def) - { + { case LDPK_DEF: case LDPK_COMMON: case LDPK_UNDEF: @@ -395,7 +441,7 @@ bfd_plugin_canonicalize_symtab (bfd *abfd, for (i = 0; i < nsyms; i++) { - asymbol *s = bfd_alloc (abfd, sizeof (asymbol)); + asymbol *s = bfd_alloc (abfd, sizeof (asymbol)); BFD_ASSERT (s); alocation[i] = s;