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Don't emit GOT slots for local symbols since the VAX can always refer to

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via PC relative addressing.
This commit is contained in:
matt 2002-02-20 18:52:23 +00:00
parent e9ecffcaf2
commit 1bb7ff7e99
1 changed files with 31 additions and 106 deletions
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137
gnu/dist/toolchain/bfd/elf32-vax.c vendored
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@ -722,37 +722,6 @@ elf_vax_check_relocs (abfd, info, sec, relocs)
}
}
else
{
/* This is a global offset table entry for a local symbol. */
if (local_got_refcounts == NULL)
{
size_t size;
size = symtab_hdr->sh_info * sizeof (bfd_signed_vma);
local_got_refcounts = ((bfd_signed_vma *)
bfd_alloc (abfd, size));
if (local_got_refcounts == NULL)
return false;
elf_local_got_refcounts (abfd) = local_got_refcounts;
memset (local_got_refcounts, -1, size);
}
if (local_got_refcounts[r_symndx] == -1)
{
local_got_refcounts[r_symndx] = 1;
sgot->_raw_size += 4;
if (info->shared)
{
/* If we are generating a shared object, we need to
output a R_VAX_RELATIVE reloc so that the dynamic
linker can adjust this GOT entry. */
srelgot->_raw_size += sizeof (Elf32_External_Rela);
}
}
else
local_got_refcounts[r_symndx]++;
}
break;
case R_VAX_PLT32:
@ -1676,96 +1645,52 @@ elf_vax_relocate_section (output_bfd, info, input_bfd, input_section,
{
bfd_vma off;
if (!elf_hash_table (info)->dynamic_sections_created
|| (h == NULL)
|| (info->shared
&& info->symbolic
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
{
/* This is actually a static link, or it is a -Bsymbolic link
and the symbol is defined locally or there is no symbol.
Change the GOT32 entry to a PC32 entry. */
break;
}
if (sgot == NULL)
{
sgot = bfd_get_section_by_name (dynobj, ".got");
BFD_ASSERT (sgot != NULL);
}
if (!elf_hash_table (info)->dynamic_sections_created
|| (info->shared
&& info->symbolic
&& (h == NULL
|| (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))))
BFD_ASSERT (h != NULL);
off = h->got.offset;
BFD_ASSERT (off != (bfd_vma) -1);
if (info->shared
&& h->dynindx == -1
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
{
/* This is actually a static link, or it is a
-Bsymbolic link and the symbol is defined
locally. Change the GOT32 entry to a PC32
entry. */
break;
}
/* The symbol was forced to be local
because of a version file.. We must initialize
this entry in the global offset table. Since
the offset must always be a multiple of 4, we
use the least significant bit to record whether
we have initialized it already.
if (h != NULL)
{
off = h->got.offset;
BFD_ASSERT (off != (bfd_vma) -1);
if (info->shared
&& h->dynindx == -1
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
{
/* The symbol was forced to be local
because of a version file.. We must initialize
this entry in the global offset table. Since
the offset must always be a multiple of 4, we
use the least significant bit to record whether
we have initialized it already.
When doing a dynamic link, we create a .rela.got
relocation entry to initialize the value. This
is done in the finish_dynamic_symbol routine. */
if ((off & 1) != 0)
off &= ~1;
else
{
bfd_put_32 (output_bfd, relocation + rel->r_addend,
sgot->contents + off);
h->got.offset |= 1;
}
} else {
bfd_put_32 (output_bfd, rel->r_addend,
sgot->contents + off);
}
}
else
{
BFD_ASSERT (local_got_offsets != NULL
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
off = local_got_offsets[r_symndx];
/* The offset must always be a multiple of 4. We use
the least significant bit to record whether we have
already generated the necessary reloc. */
When doing a dynamic link, we create a .rela.got
relocation entry to initialize the value. This
is done in the finish_dynamic_symbol routine. */
if ((off & 1) != 0)
off &= ~1;
else
{
bfd_put_32 (output_bfd, relocation + rel->r_addend,
sgot->contents + off);
if (info->shared)
{
asection *srelgot;
Elf_Internal_Rela outrel;
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
BFD_ASSERT (srelgot != NULL);
outrel.r_offset = (sgot->output_section->vma
+ sgot->output_offset
+ off);
outrel.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE);
outrel.r_addend = relocation + rel->r_addend;
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
(((Elf32_External_Rela *)
srelgot->contents)
+ srelgot->reloc_count));
++srelgot->reloc_count;
}
local_got_offsets[r_symndx] |= 1;
h->got.offset |= 1;
}
} else {
bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off);
}
relocation = sgot->output_offset + off;