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authorAlan Modra <amodra@gmail.com>2017-12-05 10:03:03 +1030
committerAlan Modra <amodra@gmail.com>2017-12-06 14:21:45 +1030
commit3bf083ed23b1337341129b810ed5da29ba8207f9 (patch)
treef20359c17a9b7b8804fe7a84208dd6f76cde43f1 /bfd/elf64-s390.c
parentdce2246a6c934bf35157e8970d0da5a11aefb282 (diff)
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dyn_relocs tidy
Many targets define their own dyn_relocs struct when they could use struct elf_dyn_relocs. This patch tidies that, and uses readonly_dynrelocs in a few more places. The SH adjust_dynamic_symbol had some really weird code dating back to 2002 that looked over dynamic relocations for any in SEC_HAS_CONTENTS or SEC_READONLY sections, rather than just the usual SEC_READONLY sections. So basically any dynamic relocation. What's more, the SH relocate_section has no support for emitting dynamic relocations in non-PIC. In other words, SH has no support for avoiding copy relocs in non-PIC. I've made that more obvious by using "if (0 && ..)" in asjust_dynamic_symbol. Unfortunately, LM32, M32R, NDS32, and OR1K copied the bogus SH adjust_dynamic_symbol code. So none of those targets would have avoided copy relocs. LM32, M32R, NDS32 get the "if (0)" treatment too. (LM32 is even more broken in that non_got_ref is never set.) OR1K relocate_section looks like it might support dynamic relocs in non-PIC, so I've enabled the copy reloc avoidance code for that target. * elf32-hppa.c (struct elf32_hppa_dyn_reloc_entry): Delete. Use struct elf_dyn_relocs throughout file instead. (elf32_hppa_adjust_dynamic_symbol): Comment tidy. * elf32-lm32.c (struct elf_lm32_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (lm32_elf_adjust_dynamic_symbol): Use readonly_dynrelocs, but disable. Disable -z no-copyreloc too. * elf32-m32r.c (struct elf_m32r_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (m32r_elf_adjust_dynamic_symbol): Use readonly_dynrelocs, but disable. Disable -z no-copyreloc too. * elf32-metag.c (struct elf_metag_dyn_reloc_entry): Delete. Use struct elf_dyn_relocs throughout file instead. (elf_metag_adjust_dynamic_symbol): Use readonly_dynrelocs. * elf32-microblaze.c (struct elf32_mb_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (readonly_dynrelocs): New function. (microblaze_elf_adjust_dynamic_symbol): Use it. * elf32-nds32.c (struct elf_nds32_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (nds32_elf_adjust_dynamic_symbol): Use readonly_dynrelocs, but disable. Disable -z no-copyreloc too. * elf32-nios2.c (struct elf32_nios2_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. * elf32-or1k.c (struct elf_or1k_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (or1k_elf_adjust_dynamic_symbol): Use readonly_dynrelocs. * elf32-sh.c (struct elf_sh_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (sh_elf_adjust_dynamic_symbol): Use readonly_dynrelocs, but disable. Disable -z no-copyreloc too. * elf32-tilepro.c (struct tilepro_elf_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (tilepro_elf_adjust_dynamic_symbol): Use readonly_dynrelocs. * elfnn-riscv.c (struct riscv_elf_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (riscv_elf_adjust_dynamic_symbol): Use readonly_dynrelocs. * elfxx-sparc.c (struct _bfd_sparc_elf_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (_bfd_sparc_elf_adjust_dynamic_symbol): Use readonly_dynrelocs. * elfxx-tilegx.c (struct tilegx_elf_dyn_relocs): Delete. Use struct elf_dyn_relocs throughout file instead. (tilegx_elf_adjust_dynamic_symbol): Use readonly_dynrelocs. * elf32-s390.c (elf_s390_adjust_dynamic_symbol): Use readonly_dynrelocs. * elf64-s390.c (elf_s390_adjust_dynamic_symbol): Use readonly_dynrelocs.
Diffstat (limited to 'bfd/elf64-s390.c')
-rw-r--r--bfd/elf64-s390.c24
1 files changed, 5 insertions, 19 deletions
diff --git a/bfd/elf64-s390.c b/bfd/elf64-s390.c
index 6c53ed3..9902135 100644
--- a/bfd/elf64-s390.c
+++ b/bfd/elf64-s390.c
@@ -1492,26 +1492,12 @@ elf_s390_adjust_dynamic_symbol (struct bfd_link_info *info,
return TRUE;
}
- if (ELIMINATE_COPY_RELOCS)
+ /* If we don't find any dynamic relocs in read-only sections, then
+ we'll be keeping the dynamic relocs and avoiding the copy reloc. */
+ if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h))
{
- struct elf_s390_link_hash_entry * eh;
- struct elf_dyn_relocs *p;
-
- eh = (struct elf_s390_link_hash_entry *) h;
- for (p = eh->dyn_relocs; p != NULL; p = p->next)
- {
- s = p->sec->output_section;
- if (s != NULL && (s->flags & SEC_READONLY) != 0)
- break;
- }
-
- /* If we didn't find any dynamic relocs in read-only sections, then
- we'll be keeping the dynamic relocs and avoiding the copy reloc. */
- if (p == NULL)
- {
- h->non_got_ref = 0;
- return TRUE;
- }
+ h->non_got_ref = 0;
+ return TRUE;
}
/* We must allocate the symbol in our .dynbss section, which will