BuFile* buFileOpen(const char* path, bool preload, int offset)
{
iovecStreamParams p = {path, preload, offset};
// set default target; without a default target some logic inside bfd goes horribly wrong
bfd_set_default_target("binary");
// open file
std::unique_ptr<bfd, bfd_boolean (*)(bfd*)> abfd(bfd_openr_iovec(path, 0, iovecOpen, &p, iovecRead, iovecClose, iovecStat), bfd_close);
if (!abfd) return 0;
// we should be working with an object file now
if (!checkFormat(abfd.get(), bfd_object)) return 0;
// decompress sections (we don't know if we'll need it)
abfd->flags |= BFD_DECOMPRESS;
// slurp symtab since all operations need it anyway
std::vector<asymbol*> symtab = slurpSymtab(abfd.get());
std::vector<asymbol*> dyntab = slurpDynamicSymtab(abfd.get());
symtab.insert(symtab.end(), dyntab.begin(), dyntab.end());
symtab.push_back(0);
return new BuFile(std::move(abfd), std::move(symtab));
}
char *
find_separate_debug_file_by_buildid (struct objfile *objfile)
{
const struct bfd_build_id *build_id;
build_id = build_id_bfd_get (objfile->obfd);
if (build_id != NULL)
{
if (separate_debug_file_debug)
printf_unfiltered (_("\nLooking for separate debug info (build-id) for "
"%s\n"), objfile_name (objfile));
gdb_bfd_ref_ptr abfd (build_id_to_debug_bfd (build_id->size,
build_id->data));
/* Prevent looping on a stripped .debug file. */
if (abfd != NULL
&& filename_cmp (bfd_get_filename (abfd.get ()),
objfile_name (objfile)) == 0)
warning (_("\"%s\": separate debug info file has no debug info"),
bfd_get_filename (abfd.get ()));
else if (abfd != NULL)
return xstrdup (bfd_get_filename (abfd.get ()));
}
return NULL;
}
static void
macho_symfile_read_all_oso (std::vector<oso_el> *oso_vector_ptr,
struct objfile *main_objfile,
symfile_add_flags symfile_flags)
{
int ix;
oso_el *oso;
/* Sort oso by name so that files from libraries are gathered. */
std::sort (oso_vector_ptr->begin (), oso_vector_ptr->end (),
oso_el_compare_name);
for (ix = 0; ix < oso_vector_ptr->size (); ++ix)
{
int pfx_len;
oso = &(*oso_vector_ptr)[ix];
/* Check if this is a library name. */
pfx_len = get_archive_prefix_len (oso->name);
if (pfx_len > 0)
{
int last_ix;
oso_el *oso2;
int ix2;
std::string archive_name (oso->name, pfx_len);
/* Compute number of oso for this archive. */
for (last_ix = ix; last_ix < oso_vector_ptr->size (); last_ix++)
{
oso2 = &(*oso_vector_ptr)[last_ix];
if (strncmp (oso2->name, archive_name.c_str (), pfx_len) != 0)
break;
}
/* Open the archive and check the format. */
gdb_bfd_ref_ptr archive_bfd (gdb_bfd_open (archive_name.c_str (),
gnutarget, -1));
if (archive_bfd == NULL)
{
warning (_("Could not open OSO archive file \"%s\""),
archive_name.c_str ());
ix = last_ix;
continue;
}
if (!bfd_check_format (archive_bfd.get (), bfd_archive))
{
warning (_("OSO archive file \"%s\" not an archive."),
archive_name.c_str ());
ix = last_ix;
continue;
}
gdb_bfd_ref_ptr member_bfd
(gdb_bfd_openr_next_archived_file (archive_bfd.get (), NULL));
if (member_bfd == NULL)
{
warning (_("Could not read archive members out of "
"OSO archive \"%s\""), archive_name.c_str ());
ix = last_ix;
continue;
}
/* Load all oso in this library. */
while (member_bfd != NULL)
{
const char *member_name = member_bfd->filename;
int member_len = strlen (member_name);
/* If this member is referenced, add it as a symfile. */
for (ix2 = ix; ix2 < last_ix; ix2++)
{
oso2 = &(*oso_vector_ptr)[ix2];
if (oso2->name
&& strlen (oso2->name) == pfx_len + member_len + 2
&& !memcmp (member_name, oso2->name + pfx_len + 1,
member_len))
{
macho_add_oso_symfile (oso2, member_bfd,
bfd_get_filename (member_bfd),
main_objfile, symfile_flags);
oso2->name = NULL;
break;
}
}
member_bfd = gdb_bfd_openr_next_archived_file (archive_bfd.get (),
member_bfd.get ());
}
for (ix2 = ix; ix2 < last_ix; ix2++)
{
oso_el *oso2 = &(*oso_vector_ptr)[ix2];
if (oso2->name != NULL)
warning (_("Could not find specified archive member "
"for OSO name \"%s\""), oso->name);
}
ix = last_ix;
}
else
{
gdb_bfd_ref_ptr abfd (gdb_bfd_open (oso->name, gnutarget, -1));
if (abfd == NULL)
warning (_("`%s': can't open to read symbols: %s."), oso->name,
bfd_errmsg (bfd_get_error ()));
else
macho_add_oso_symfile (oso, abfd, oso->name, main_objfile,
symfile_flags);
ix++;
}
}
}
