#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
-#define elf_backend_check_directives ppc64_elf_process_dot_syms
+#define elf_backend_check_directives ppc64_elf_before_check_relocs
#define elf_backend_notice_as_needed ppc64_elf_notice_as_needed
#define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup
#define elf_backend_check_relocs ppc64_elf_check_relocs
/* Set on error. */
unsigned int stub_error:1;
- /* Temp used by ppc64_elf_process_dot_syms. */
+ /* Temp used by ppc64_elf_before_check_relocs. */
unsigned int twiddled_syms:1;
/* Incremented every time we size stubs. */
return TRUE;
}
-/* Process list of dot-symbols we made in link_hash_newfunc. */
+/* Set up opd section info and abiversion for IBFD, and process list
+ of dot-symbols we made in link_hash_newfunc. */
static bfd_boolean
-ppc64_elf_process_dot_syms (bfd *ibfd, struct bfd_link_info *info)
+ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info)
{
struct ppc_link_hash_table *htab;
struct ppc_link_hash_entry **p, *eh;
if (is_ppc64_elf (ibfd))
{
+ asection *opd = bfd_get_section_by_name (ibfd, ".opd");
+
+ if (opd != NULL && opd->size != 0)
+ {
+ if (abiversion (ibfd) == 0)
+ set_abiversion (ibfd, 1);
+ else if (abiversion (ibfd) == 2)
+ {
+ info->callbacks->einfo (_("%P: %B .opd not allowed in ABI"
+ " version %d\n"),
+ ibfd, abiversion (ibfd));
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ if ((ibfd->flags & DYNAMIC) == 0
+ && (opd->flags & SEC_RELOC) != 0
+ && opd->reloc_count != 0
+ && !bfd_is_abs_section (opd->output_section))
+ {
+ /* Garbage collection needs some extra help with .opd sections.
+ We don't want to necessarily keep everything referenced by
+ relocs in .opd, as that would keep all functions. Instead,
+ if we reference an .opd symbol (a function descriptor), we
+ want to keep the function code symbol's section. This is
+ easy for global symbols, but for local syms we need to keep
+ information about the associated function section. */
+ bfd_size_type amt;
+ asection **opd_sym_map;
+
+ amt = opd->size * sizeof (*opd_sym_map) / 8;
+ opd_sym_map = bfd_zalloc (ibfd, amt);
+ if (opd_sym_map == NULL)
+ return FALSE;
+ ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map;
+ BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal);
+ ppc64_elf_section_data (opd)->sec_type = sec_opd;
+ }
+ }
+
+ /* For input files without an explicit abiversion in e_flags
+ we should have flagged any with symbol st_other bits set
+ as ELFv1 and above flagged those with .opd as ELFv2.
+ Set the output abiversion if not yet set, and for any input
+ still ambiguous, take its abiversion from the output.
+ Differences in ABI are reported later. */
+ if (abiversion (info->output_bfd) == 0)
+ set_abiversion (info->output_bfd, abiversion (ibfd));
+ else if (abiversion (ibfd) == 0)
+ set_abiversion (ibfd, abiversion (info->output_bfd));
+
p = &htab->dot_syms;
while ((eh = *p) != NULL)
{
sym_hashes = elf_sym_hashes (abfd);
sreloc = NULL;
opd_sym_map = NULL;
- if (strcmp (sec->name, ".opd") == 0)
- {
- /* Garbage collection needs some extra help with .opd sections.
- We don't want to necessarily keep everything referenced by
- relocs in .opd, as that would keep all functions. Instead,
- if we reference an .opd symbol (a function descriptor), we
- want to keep the function code symbol's section. This is
- easy for global symbols, but for local syms we need to keep
- information about the associated function section. */
- bfd_size_type amt;
-
- if (abiversion (abfd) == 0)
- set_abiversion (abfd, 1);
- else if (abiversion (abfd) == 2)
- {
- info->callbacks->einfo (_("%P: .opd not allowed in ABI version %d\n"),
- abiversion (abfd));
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
- amt = sec->size * sizeof (*opd_sym_map) / 8;
- opd_sym_map = bfd_zalloc (abfd, amt);
- if (opd_sym_map == NULL)
- return FALSE;
- ppc64_elf_section_data (sec)->u.opd.func_sec = opd_sym_map;
- BFD_ASSERT (ppc64_elf_section_data (sec)->sec_type == sec_normal);
- ppc64_elf_section_data (sec)->sec_type = sec_opd;
- }
+ if (ppc64_elf_section_data (sec) != NULL
+ && ppc64_elf_section_data (sec)->sec_type == sec_opd)
+ opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
/* We may also need a plt entry if the symbol turns out to be
an ifunc. */
- if (h != NULL && !info->shared && abiversion (abfd) == 2)
+ if (h != NULL && !info->shared && abiversion (abfd) != 1)
{
if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend))
return FALSE;
case R_PPC64_ADDR16_HIGHESTA:
case R_PPC64_ADDR16_LO:
case R_PPC64_ADDR16_LO_DS:
- if (h != NULL && !info->shared && abiversion (abfd) == 2
+ if (h != NULL && !info->shared && abiversion (abfd) != 1
&& rel->r_addend == 0)
{
/* We may need a .plt entry if this reloc refers to a
iflags = elf_elfheader (ibfd)->e_flags;
oflags = elf_elfheader (obfd)->e_flags;
- if (!elf_flags_init (obfd) || oflags == 0)
- {
- elf_flags_init (obfd) = TRUE;
- elf_elfheader (obfd)->e_flags = iflags;
- }
- else if (iflags == oflags || iflags == 0)
- ;
- else if (iflags & ~EF_PPC64_ABI)
+ if (iflags & ~EF_PPC64_ABI)
{
(*_bfd_error_handler)
(_("%B uses unknown e_flags 0x%lx"), ibfd, iflags);
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
- else
+ else if (iflags != oflags && iflags != 0)
{
(*_bfd_error_handler)
(_("%B: ABI version %ld is not compatible with ABI version %ld output"),
projects / thirdparty / binutils-gdb.git / commitdiff
