bfd_boolean
_bfd_elf_merge_unknown_attribute_low (bfd *ibfd, bfd *obfd, int tag)
{
obj_attribute *in_attr;
obj_attribute *out_attr;
bfd *err_bfd = NULL;
bfd_boolean result = TRUE;
in_attr = elf_known_obj_attributes_proc (ibfd);
out_attr = elf_known_obj_attributes_proc (obfd);
if (out_attr[tag].i != 0 || out_attr[tag].s != NULL)
err_bfd = obfd;
else if (in_attr[tag].i != 0 || in_attr[tag].s != NULL)
err_bfd = ibfd;
if (err_bfd != NULL)
result
= get_elf_backend_data (err_bfd)->obj_attrs_handle_unknown (err_bfd, tag);
/* Only pass on attributes that match in both inputs. */
if (in_attr[tag].i != out_attr[tag].i
|| (in_attr[tag].s == NULL) != (out_attr[tag].s == NULL)
|| (in_attr[tag].s != NULL && out_attr[tag].s != NULL
&& strcmp (in_attr[tag].s, out_attr[tag].s) != 0))
{
out_attr[tag].i = 0;
out_attr[tag].s = NULL;
}
return result;
}
/* Merge object attributes from IBFD into OBFD. Raise an error if
there are conflicting attributes. */
static bfd_boolean
elf_s390_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info)
{
bfd *obfd = info->output_bfd;
obj_attribute *in_attr, *in_attrs;
obj_attribute *out_attr, *out_attrs;
if (!elf_known_obj_attributes_proc (obfd)[0].i)
{
/* This is the first object. Copy the attributes. */
_bfd_elf_copy_obj_attributes (ibfd, obfd);
/* Use the Tag_null value to indicate the attributes have been
initialized. */
elf_known_obj_attributes_proc (obfd)[0].i = 1;
return TRUE;
}
in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
/* Check for conflicting Tag_GNU_S390_ABI_Vector attributes and
merge non-conflicting ones. */
in_attr = &in_attrs[Tag_GNU_S390_ABI_Vector];
out_attr = &out_attrs[Tag_GNU_S390_ABI_Vector];
if (in_attr->i > 2)
_bfd_error_handler
/* xgettext:c-format */
(_("warning: %pB uses unknown vector ABI %d"), ibfd,
in_attr->i);
else if (out_attr->i > 2)
_bfd_error_handler
/* xgettext:c-format */
(_("warning: %pB uses unknown vector ABI %d"), obfd,
out_attr->i);
else if (in_attr->i != out_attr->i)
{
out_attr->type = ATTR_TYPE_FLAG_INT_VAL;
if (in_attr->i && out_attr->i)
{
const char abi_str[3][9] = { "none", "software", "hardware" };
_bfd_error_handler
/* xgettext:c-format */
(_("warning: %pB uses vector %s ABI, %pB uses %s ABI"),
ibfd, abi_str[in_attr->i], obfd, abi_str[out_attr->i]);
}
if (in_attr->i > out_attr->i)
out_attr->i = in_attr->i;
}
/* Merge Tag_compatibility attributes and any common GNU ones. */
_bfd_elf_merge_object_attributes (ibfd, info);
return TRUE;
}