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authorAlan Modra <amodra@gmail.com>2017-12-01 07:53:16 +1030
committerAlan Modra <amodra@gmail.com>2017-12-01 09:06:30 +1030
commit4a7e52349807017f9bc09ea25f07924f2ec971b3 (patch)
tree8af3ae5d5d1b97d6b83258f22095afec0500d46d /bfd/elf64-ppc.c
parent6f14765f9f448bbe03750634eb42c4a9db6521b8 (diff)
downloadbinutils-gdb-4a7e52349807017f9bc09ea25f07924f2ec971b3.tar.gz
PR22533, dynamic relocs generated for weak aliases
This cleans up yet more craziness with non_got_ref. PR 22533 * elf32-hppa.c (elf32_hppa_copy_indirect_symbol): Don't do anything special with non_got_ref for weak aliases. (elf32_hppa_check_relocs): Tweak setting of non_got_ref. (elf32_hppa_adjust_dynamic_symbol): When initialising weak aliases, don't uselessly copy non_got_ref. Clear dyn_relocs instead if strong symbol is allocated in dynbss. Tidy comments. (elf32_hppa_relocate_section): Comment fix. * elf32-ppc.c (ppc_elf_copy_indirect_symbol): Don't do anything special with non_got_ref for weak aliases. (ppc_elf_adjust_dynamic_symbol): When initialising weak aliases, don't uselessly copy non_got_ref. Clear dyn_relocs instead if strong symbol is allocated in dynbss. Tidy comments. * elf64-ppc.c (ppc64_elf_copy_indirect_symbol): Don't do anything special with non_got_ref for weak aliases. (ppc64_elf_adjust_dynamic_symbol): When initialising weak aliases, don't uselessly copy non_got_ref. Clear dyn_relocs instead if strong symbol is allocated in dynbss. Tidy comments.
Diffstat (limited to 'bfd/elf64-ppc.c')
-rw-r--r--bfd/elf64-ppc.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index 2486390babf..b7f4029bf56 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -4761,18 +4761,11 @@ ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info,
if (eind->oh != NULL)
edir->oh = ppc_follow_link (eind->oh);
- /* If called to transfer flags for a weakdef during processing
- of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF.
- We clear it ourselves for ELIMINATE_COPY_RELOCS. */
- if (!(ELIMINATE_COPY_RELOCS
- && eind->elf.root.type != bfd_link_hash_indirect
- && edir->elf.dynamic_adjusted))
- edir->elf.non_got_ref |= eind->elf.non_got_ref;
-
if (edir->elf.versioned != versioned_hidden)
edir->elf.ref_dynamic |= eind->elf.ref_dynamic;
edir->elf.ref_regular |= eind->elf.ref_regular;
edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
+ edir->elf.non_got_ref |= eind->elf.non_got_ref;
edir->elf.needs_plt |= eind->elf.needs_plt;
edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
@@ -7216,8 +7209,9 @@ ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
BFD_ASSERT (def->root.type == bfd_link_hash_defined);
h->root.u.def.section = def->root.u.def.section;
h->root.u.def.value = def->root.u.def.value;
- if (ELIMINATE_COPY_RELOCS)
- h->non_got_ref = def->non_got_ref;
+ if (def->root.u.def.section == htab->elf.sdynbss
+ || def->root.u.def.section == htab->elf.sdynrelro)
+ ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL;
return TRUE;
}
@@ -7275,11 +7269,6 @@ ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
determine the address it must put in the global offset table, so
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
-
- /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
- 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;
@@ -7292,6 +7281,9 @@ ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
}
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
{
+ /* We must generate a R_PPC64_COPY reloc to tell the dynamic
+ linker to copy the initial value out of the dynamic object
+ and into the runtime process image. */
srel->size += sizeof (Elf64_External_Rela);
h->needs_copy = 1;
}