int
bfd_plugin_open_input (bfd *ibfd, struct ld_plugin_input_file *file)
{
bfd *iobfd;
iobfd = ibfd;
if (ibfd->my_archive && !bfd_is_thin_archive (ibfd->my_archive))
iobfd = ibfd->my_archive;
file->name = iobfd->filename;
if (!iobfd->iostream && !bfd_open_file (iobfd))
return 0;
file->fd = fileno ((FILE *) iobfd->iostream);
if (iobfd == ibfd)
{
struct stat stat_buf;
if (fstat (file->fd, &stat_buf))
return 0;
file->offset = 0;
file->filesize = stat_buf.st_size;
}
else
{
file->offset = ibfd->origin;
file->filesize = arelt_size (ibfd);
}
return 1;
}
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)
return NULL;
return abfd->xvec;
}
static int
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 FILE *
bfd_cache_lookup_worker (bfd *abfd, enum cache_flag flag)
{
bfd *orig_bfd = abfd;
if ((abfd->flags & BFD_IN_MEMORY) != 0)
abort ();
while (abfd->my_archive != NULL
&& !bfd_is_thin_archive (abfd->my_archive))
abfd = abfd->my_archive;
if (abfd->iostream != NULL)
{
/* Move the file to the start of the cache. */
if (abfd != bfd_last_cache)
{
snip (abfd);
insert (abfd);
}
return (FILE *) abfd->iostream;
}
if (flag & CACHE_NO_OPEN)
return NULL;
if (bfd_open_file (abfd) == NULL)
;
else if (!(flag & CACHE_NO_SEEK)
&& _bfd_real_fseek ((FILE *) abfd->iostream,
abfd->where, SEEK_SET) != 0
&& !(flag & CACHE_NO_SEEK_ERROR))
bfd_set_error (bfd_error_system_call);
else
return (FILE *) abfd->iostream;
/* xgettext:c-format */
_bfd_error_handler (_("reopening %B: %s\n"),
orig_bfd, bfd_errmsg (bfd_get_error ()));
return NULL;
}