/* 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.
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 <assert.h>
+#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
+#elif defined (HAVE_WINDOWS_H)
+#include <windows.h>
+#else
+#error Unknown how to handle dynamic-load-libraries.
+#endif
#include <stdarg.h>
#include "plugin-api.h"
-#include "sysdep.h"
#include "plugin.h"
#include "libbfd.h"
#include "libiberty.h"
#include <dirent.h>
+#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
#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
#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
{
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;
}
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;
if (!claim_file)
goto err;
+ if (!try_claim (abfd))
+ goto err;
+
return 1;
err:
}
static int
-load_plugin (void)
+load_plugin (bfd *abfd)
{
char *plugin_dir;
char *p;
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;
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;
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;
convert_flags (const struct ld_plugin_symbol *sym)
{
switch (sym->def)
- {
+ {
case LDPK_DEF:
case LDPK_COMMON:
case LDPK_UNDEF:
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;
projects / platform / upstream / binutils.git / blobdiff