}
}
- /* Get and relocate the section contents. */
- sec_size = (input_section->rawsize > input_section->size
- ? input_section->rawsize
- : input_section->size);
- contents = bfd_malloc (sec_size);
- if (contents == NULL && sec_size != 0)
- goto error_return;
- new_contents = (bfd_get_relocated_section_contents
- (output_bfd, info, link_order, contents, info->relocatable,
- _bfd_generic_link_get_symbols (input_bfd)));
- if (!new_contents)
- goto error_return;
+ if ((output_section->flags & (SEC_GROUP | SEC_LINKER_CREATED)) == SEC_GROUP
+ && input_section->size != 0)
+ {
+ /* Group section contents are set by bfd_elf_set_group_contents. */
+ if (!output_bfd->output_has_begun)
+ {
+ /* FIXME: This hack ensures bfd_elf_set_group_contents is called. */
+ if (!bfd_set_section_contents (output_bfd, output_section, "", 0, 1))
+ goto error_return;
+ }
+ new_contents = output_section->contents;
+ BFD_ASSERT (new_contents != NULL);
+ BFD_ASSERT (input_section->output_offset == 0);
+ }
+ else
+ {
+ /* Get and relocate the section contents. */
+ sec_size = (input_section->rawsize > input_section->size
+ ? input_section->rawsize
+ : input_section->size);
+ contents = bfd_malloc (sec_size);
+ if (contents == NULL && sec_size != 0)
+ goto error_return;
+ new_contents = (bfd_get_relocated_section_contents
+ (output_bfd, info, link_order, contents,
+ info->relocatable,
+ _bfd_generic_link_get_symbols (input_bfd)));
+ if (!new_contents)
+ goto error_return;
+ }
/* Output the section contents. */
loc = input_section->output_offset * bfd_octets_per_byte (output_bfd);
/* This is the first section with this name. Record it. */
if (! bfd_section_already_linked_table_insert (already_linked_list, sec))
- info->callbacks->einfo (_("%F%P: already_linked_table: %E"));
+ info->callbacks->einfo (_("%F%P: already_linked_table: %E\n"));
}
/* Convert symbols in excluded output sections to use a kept section. */
{
bfd_link_hash_traverse (info->hash, fix_syms, obfd);
}
+
+/*
+FUNCTION
+ bfd_generic_define_common_symbol
+
+SYNOPSIS
+ bfd_boolean bfd_generic_define_common_symbol
+ (bfd *output_bfd, struct bfd_link_info *info,
+ struct bfd_link_hash_entry *h);
+
+DESCRIPTION
+ Convert common symbol @var{h} into a defined symbol.
+ Return TRUE on success and FALSE on failure.
+
+.#define bfd_define_common_symbol(output_bfd, info, h) \
+. BFD_SEND (output_bfd, _bfd_define_common_symbol, (output_bfd, info, h))
+.
+*/
+
+bfd_boolean
+bfd_generic_define_common_symbol (bfd *output_bfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ struct bfd_link_hash_entry *h)
+{
+ unsigned int power_of_two;
+ bfd_vma alignment, size;
+ asection *section;
+
+ BFD_ASSERT (h != NULL && h->type == bfd_link_hash_common);
+
+ size = h->u.c.size;
+ power_of_two = h->u.c.p->alignment_power;
+ section = h->u.c.p->section;
+
+ /* Increase the size of the section to align the common symbol.
+ The alignment must be a power of two. */
+ alignment = bfd_octets_per_byte (output_bfd) << power_of_two;
+ BFD_ASSERT (alignment != 0 && (alignment & -alignment) == alignment);
+ section->size += alignment - 1;
+ section->size &= -alignment;
+
+ /* Adjust the section's overall alignment if necessary. */
+ if (power_of_two > section->alignment_power)
+ section->alignment_power = power_of_two;
+
+ /* Change the symbol from common to defined. */
+ h->type = bfd_link_hash_defined;
+ h->u.def.section = section;
+ h->u.def.value = section->size;
+
+ /* Increase the size of the section. */
+ section->size += size;
+
+ /* Make sure the section is allocated in memory, and make sure that
+ it is no longer a common section. */
+ section->flags |= SEC_ALLOC;
+ section->flags &= ~SEC_IS_COMMON;
+ return TRUE;
+}
+
+/*
+FUNCTION
+ bfd_find_version_for_sym
+
+SYNOPSIS
+ struct bfd_elf_version_tree * bfd_find_version_for_sym
+ (struct bfd_elf_version_tree *verdefs,
+ const char *sym_name, bfd_boolean *hide);
+
+DESCRIPTION
+ Search an elf version script tree for symbol versioning
+ info and export / don't-export status for a given symbol.
+ Return non-NULL on success and NULL on failure; also sets
+ the output @samp{hide} boolean parameter.
+
+*/
+
+struct bfd_elf_version_tree *
+bfd_find_version_for_sym (struct bfd_elf_version_tree *verdefs,
+ const char *sym_name,
+ bfd_boolean *hide)
+{
+ struct bfd_elf_version_tree *t;
+ struct bfd_elf_version_tree *local_ver, *global_ver, *exist_ver;
+
+ local_ver = NULL;
+ global_ver = NULL;
+ exist_ver = NULL;
+ for (t = verdefs; t != NULL; t = t->next)
+ {
+ if (t->globals.list != NULL)
+ {
+ struct bfd_elf_version_expr *d = NULL;
+
+ while ((d = (*t->match) (&t->globals, d, sym_name)) != NULL)
+ {
+ global_ver = t;
+ if (d->symver)
+ exist_ver = t;
+ d->script = 1;
+ /* If the match is a wildcard pattern, keep looking for
+ a more explicit, perhaps even local, match. */
+ if (d->literal)
+ break;
+ }
+
+ if (d != NULL)
+ break;
+ }
+
+ if (t->locals.list != NULL)
+ {
+ struct bfd_elf_version_expr *d = NULL;
+
+ while ((d = (*t->match) (&t->locals, d, sym_name)) != NULL)
+ {
+ local_ver = t;
+ /* If the match is a wildcard pattern, keep looking for
+ a more explicit, perhaps even global, match. */
+ if (d->literal)
+ {
+ /* An exact match overrides a global wildcard. */
+ global_ver = NULL;
+ break;
+ }
+ }
+
+ if (d != NULL)
+ break;
+ }
+ }
+
+ if (global_ver != NULL)
+ {
+ /* If we already have a versioned symbol that matches the
+ node for this symbol, then we don't want to create a
+ duplicate from the unversioned symbol. Instead hide the
+ unversioned symbol. */
+ *hide = exist_ver == global_ver;
+ return global_ver;
+ }
+
+ if (local_ver != NULL)
+ {
+ *hide = TRUE;
+ return local_ver;
+ }
+
+ return NULL;
+}
+
projects / deliverable / binutils-gdb.git / blobdiff