@@ -595,6 +595,10 @@ struct elf_link_hash_table
asection *srelgot;
asection *splt;
asection *srelplt;
+ asection *sdynbss;
+ asection *srelbss;
+ asection *sdynrelro;
+ asection *srelro;
asection *igotplt;
asection *iplt;
asection *irelplt;
@@ -93,7 +93,7 @@ static bfd_vma opd_entry_value
#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
#define elf_backend_write_core_note ppc64_elf_write_core_note
-#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
+#define elf_backend_create_dynamic_sections _bfd_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_before_check_relocs
@@ -4084,8 +4084,6 @@ struct ppc_link_hash_table
struct ppc_link_hash_entry *dot_syms;
/* Shortcuts to get to dynamic linker sections. */
- asection *dynbss;
- asection *relbss;
asection *glink;
asection *sfpr;
asection *brlt;
@@ -4669,31 +4667,6 @@ create_got_section (bfd *abfd, struct bfd_link_info *info)
return TRUE;
}
-/* Create the dynamic sections, and set up shortcuts. */
-
-static bfd_boolean
-ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
-{
- struct ppc_link_hash_table *htab;
-
- if (!_bfd_elf_create_dynamic_sections (dynobj, info))
- return FALSE;
-
- htab = ppc_hash_table (info);
- if (htab == NULL)
- return FALSE;
-
- htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss");
- if (!bfd_link_pic (info))
- htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss");
-
- if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss
- || (!bfd_link_pic (info) && !htab->relbss))
- abort ();
-
- return TRUE;
-}
-
/* Follow indirect and warning symbol links. */
static inline struct bfd_link_hash_entry *
@@ -7311,7 +7284,7 @@ ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
struct elf_link_hash_entry *h)
{
struct ppc_link_hash_table *htab;
- asection *s;
+ asection *s, *srel;
htab = ppc_hash_table (info);
if (htab == NULL)
@@ -7441,14 +7414,22 @@ ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
to copy the initial value out of the dynamic object and into the
runtime process image. We need to remember the offset into the
.rela.bss section we are going to use. */
+ if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
+ {
+ s = htab->elf.sdynrelro;
+ srel = htab->elf.srelro;
+ }
+ else
+ {
+ s = htab->elf.sdynbss;
+ srel = htab->elf.srelbss;
+ }
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
- htab->relbss->size += sizeof (Elf64_External_Rela);
+ srel->size += sizeof (Elf64_External_Rela);
h->needs_copy = 1;
}
- s = htab->dynbss;
-
return _bfd_elf_adjust_dynamic_copy (info, h, s);
}
@@ -10278,7 +10259,8 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd,
|| s == htab->elf.splt
|| s == htab->elf.iplt
|| s == htab->glink
- || s == htab->dynbss)
+ || s == htab->elf.sdynbss
+ || s == htab->elf.sdynrelro)
{
/* Strip this section if we don't need it; see the
comment below. */
@@ -10331,7 +10313,7 @@ ppc64_elf_size_dynamic_sections (bfd *output_bfd,
but this way if it does we get a R_PPC64_NONE reloc in .rela
sections instead of garbage.
We also rely on the section contents being zero when writing
- the GOT. */
+ the GOT and .dynrelro. */
s->contents = bfd_zalloc (dynobj, s->size);
if (s->contents == NULL)
return FALSE;
@@ -15615,11 +15597,13 @@ ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
if (h->needs_copy)
{
/* This symbol needs a copy reloc. Set it up. */
+ asection *srel;
if (h->dynindx == -1
|| (h->root.type != bfd_link_hash_defined
&& h->root.type != bfd_link_hash_defweak)
- || htab->relbss == NULL)
+ || htab->elf.srelbss == NULL
+ || htab->elf.srelro == NULL)
abort ();
rela.r_offset = (h->root.u.def.value
@@ -15627,8 +15611,12 @@ ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
+ h->root.u.def.section->output_offset);
rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
rela.r_addend = 0;
- loc = htab->relbss->contents;
- loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
+ if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
+ srel = htab->elf.srelro;
+ else
+ srel = htab->elf.srelbss;
+ loc = srel->contents;
+ loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
}
@@ -427,6 +427,17 @@ _bfd_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
(SEC_ALLOC | SEC_LINKER_CREATED));
if (s == NULL)
return FALSE;
+ htab->sdynbss = s;
+
+ /* Similarly, but for symbols that were originally in read-only
+ sections. */
+ s = bfd_make_section_anyway_with_flags (abfd, ".dynrelro",
+ (SEC_ALLOC | SEC_READONLY
+ | SEC_HAS_CONTENTS
+ | SEC_LINKER_CREATED));
+ if (s == NULL)
+ return FALSE;
+ htab->sdynrelro = s;
/* The .rel[a].bss section holds copy relocs. This section is not
normally needed. We need to create it here, though, so that the
@@ -448,6 +459,16 @@ _bfd_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
if (s == NULL
|| ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
return FALSE;
+ htab->srelbss = s;
+
+ s = bfd_make_section_anyway_with_flags (abfd,
+ (bed->rela_plts_and_copies_p
+ ? ".rela.ro" : ".rel.ro"),
+ flags | SEC_READONLY);
+ if (s == NULL
+ || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
+ return FALSE;
+ htab->srelro = s;
}
}
@@ -169,7 +169,7 @@ RELA_IPLT=".rela.iplt ${RELOCATING-0} :
}"
DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
RODATA=".${RODATA_NAME} ${RELOCATING-0} : { *(.${RODATA_NAME}${RELOCATING+ .${RODATA_NAME}.* .gnu.linkonce.r.*}) }"
-DATARELRO=".data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }"
+DATARELRO=".data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) *(.dynrelro) }"
DISCARDED="/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }"
if test -z "${NO_SMALL_DATA}"; then
SBSS=".${SBSS_NAME} ${RELOCATING-0} :