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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/elf32-hppa.c
parent6f14765f9f448bbe03750634eb42c4a9db6521b8 (diff)
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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/elf32-hppa.c')
-rw-r--r--bfd/elf32-hppa.c50
1 files changed, 17 insertions, 33 deletions
diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c
index 6b2abb2..3f71159 100644
--- a/bfd/elf32-hppa.c
+++ b/bfd/elf32-hppa.c
@@ -1057,30 +1057,14 @@ elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
hh_ind->dyn_relocs = NULL;
}
- if (ELIMINATE_COPY_RELOCS
- && eh_ind->root.type != bfd_link_hash_indirect
- && eh_dir->dynamic_adjusted)
+ if (eh_ind->root.type == bfd_link_hash_indirect)
{
- /* 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 (eh_dir->versioned != versioned_hidden)
- eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
- eh_dir->ref_regular |= eh_ind->ref_regular;
- eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
- eh_dir->needs_plt |= eh_ind->needs_plt;
+ hh_dir->plabel |= hh_ind->plabel;
+ hh_dir->tls_type |= hh_ind->tls_type;
+ hh_ind->tls_type = GOT_UNKNOWN;
}
- else
- {
- if (eh_ind->root.type == bfd_link_hash_indirect)
- {
- hh_dir->plabel |= hh_ind->plabel;
- hh_dir->tls_type |= hh_ind->tls_type;
- hh_ind->tls_type = GOT_UNKNOWN;
- }
- _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
- }
+ _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
}
static int
@@ -1424,7 +1408,7 @@ elf32_hppa_check_relocs (bfd *abfd,
/* Flag this symbol as having a non-got, non-plt reference
so that we generate copy relocs if it turns out to be
dynamic. */
- if (hh != NULL && !bfd_link_pic (info))
+ if (hh != NULL)
hh->eh.non_got_ref = 1;
/* If we are creating a shared library then we need to copy
@@ -1748,6 +1732,10 @@ elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
else
eh->plt.offset = (bfd_vma) -1;
+ htab = hppa_link_hash_table (info);
+ if (htab == NULL)
+ return FALSE;
+
/* If this is a weak symbol, and there is a real definition, the
processor independent code will have arranged for us to see the
real definition first, and we can just use the same value. */
@@ -1757,8 +1745,9 @@ elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
BFD_ASSERT (def->root.type == bfd_link_hash_defined);
eh->root.u.def.section = def->root.u.def.section;
eh->root.u.def.value = def->root.u.def.value;
- if (ELIMINATE_COPY_RELOCS)
- eh->non_got_ref = def->non_got_ref;
+ if (def->root.u.def.section == htab->etab.sdynbss
+ || def->root.u.def.section == htab->etab.sdynrelro)
+ hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
return TRUE;
}
@@ -1798,14 +1787,6 @@ elf32_hppa_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. */
-
- htab = hppa_link_hash_table (info);
- if (htab == NULL)
- return FALSE;
-
- /* We must generate a COPY reloc to tell the dynamic linker to
- copy the initial value out of the dynamic object and into the
- runtime process image. */
if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
{
sec = htab->etab.sdynrelro;
@@ -1818,6 +1799,9 @@ elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
}
if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
{
+ /* We must generate a 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 (Elf32_External_Rela);
eh->needs_copy = 1;
}
@@ -3797,7 +3781,7 @@ elf32_hppa_relocate_section (bfd *output_bfd,
bfd_link_pic (info),
&hh->eh))
{
- /* In a non-shared link, adjust_dynamic_symbols
+ /* In a non-shared link, adjust_dynamic_symbol
isn't called for symbols forced local. We
need to write out the plt entry here. */
if ((off & 1) != 0)