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* elflink.h (elf_link_read_relocs_from_section): New function,

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split out from ...
	(elf_link_read_relocs): Here.  Use it for both relocation
	sections.
This commit is contained in:
Mark Mitchell 1999-06-13 01:13:26 +00:00
parent 197a7bfdca
commit 6b5bd373fb
2 changed files with 91 additions and 41 deletions
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7
bfd/ChangeLog
View File

@ -1,3 +1,10 @@
1999-06-13 Mark Mitchell <mark@codesourcery.com>
* elflink.h (elf_link_read_relocs_from_section): New function,
split out from ...
(elf_link_read_relocs): Here. Use it for both relocation
sections.
1999-06-12 Mark Mitchell <mark@codesourcery.com>
* elfcode.h (elf_slurp_reloc_table_from_section): Don't assume

125
bfd/elflink.h
View File

@ -52,6 +52,8 @@ static boolean elf_link_renumber_dynsyms
PARAMS ((struct elf_link_hash_entry *, PTR));
static boolean elf_collect_hash_codes
PARAMS ((struct elf_link_hash_entry *, PTR));
static boolean elf_link_read_relocs_from_section
PARAMS ((bfd *, Elf_Internal_Shdr *, PTR, Elf_Internal_Rela *));
/* Given an ELF BFD, add symbols to the global hash table as
appropriate. */
@ -1991,6 +1993,74 @@ elf_add_dynamic_entry (info, tag, val)
}
/* Read and swap the relocs from the section indicated by SHDR. This
may be either a REL or a RELA section. The relocations are
translated into RELA relocations and stored in INTERNAL_RELOCS,
which should have already been allocated to contain enough space.
The EXTERNAL_RELOCS are a buffer where the external form of the
relocations should be stored.
Returns false if something goes wrong. */
static boolean
elf_link_read_relocs_from_section (abfd, shdr, external_relocs,
internal_relocs)
bfd *abfd;
Elf_Internal_Shdr *shdr;
PTR external_relocs;
Elf_Internal_Rela *internal_relocs;
{
/* If there aren't any relocations, that's OK. */
if (!shdr)
return true;
/* Position ourselves at the start of the section. */
if (bfd_seek (abfd, shdr->sh_offset, SEEK_SET) != 0)
return false;
/* Read the relocations. */
if (bfd_read (external_relocs, 1, shdr->sh_size, abfd)
!= shdr->sh_size)
return false;
/* Convert the external relocations to the internal format. */
if (shdr->sh_entsize == sizeof (Elf_External_Rel))
{
Elf_External_Rel *erel;
Elf_External_Rel *erelend;
Elf_Internal_Rela *irela;
erel = (Elf_External_Rel *) external_relocs;
erelend = erel + shdr->sh_size / shdr->sh_entsize;
irela = internal_relocs;
for (; erel < erelend; erel++, irela++)
{
Elf_Internal_Rel irel;
elf_swap_reloc_in (abfd, erel, &irel);
irela->r_offset = irel.r_offset;
irela->r_info = irel.r_info;
irela->r_addend = 0;
}
}
else
{
Elf_External_Rela *erela;
Elf_External_Rela *erelaend;
Elf_Internal_Rela *irela;
BFD_ASSERT (shdr->sh_entsize == sizeof (Elf_External_Rela));
erela = (Elf_External_Rela *) external_relocs;
erelaend = erela + shdr->sh_size / shdr->sh_entsize;
irela = internal_relocs;
for (; erela < erelaend; erela++, irela++)
elf_swap_reloca_in (abfd, erela, irela);
}
return true;
}
/* Read and swap the relocs for a section. They may have been cached.
If the EXTERNAL_RELOCS and INTERNAL_RELOCS arguments are not NULL,
they are used as buffers to read into. They are known to be large
@ -2034,53 +2104,26 @@ NAME(_bfd_elf,link_read_relocs) (abfd, o, external_relocs, internal_relocs,
if (external_relocs == NULL)
{
alloc1 = (PTR) bfd_malloc ((size_t) rel_hdr->sh_size);
size_t size = (size_t) rel_hdr->sh_size;
if (elf_section_data (o)->rel_hdr2)
size += (size_t) elf_section_data (o)->rel_hdr2->sh_size;
alloc1 = (PTR) bfd_malloc (size);
if (alloc1 == NULL)
goto error_return;
external_relocs = alloc1;
}
if ((bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0)
|| (bfd_read (external_relocs, 1, rel_hdr->sh_size, abfd)
!= rel_hdr->sh_size))
if (!elf_link_read_relocs_from_section (abfd, rel_hdr,
external_relocs,
internal_relocs))
goto error_return;
if (!elf_link_read_relocs_from_section
(abfd,
elf_section_data (o)->rel_hdr2,
external_relocs + rel_hdr->sh_size,
internal_relocs + rel_hdr->sh_size / rel_hdr->sh_entsize))
goto error_return;
/* Swap in the relocs. For convenience, we always produce an
Elf_Internal_Rela array; if the relocs are Rel, we set the addend
to 0. */
if (rel_hdr->sh_entsize == sizeof (Elf_External_Rel))
{
Elf_External_Rel *erel;
Elf_External_Rel *erelend;
Elf_Internal_Rela *irela;
erel = (Elf_External_Rel *) external_relocs;
erelend = erel + o->reloc_count;
irela = internal_relocs;
for (; erel < erelend; erel++, irela++)
{
Elf_Internal_Rel irel;
elf_swap_reloc_in (abfd, erel, &irel);
irela->r_offset = irel.r_offset;
irela->r_info = irel.r_info;
irela->r_addend = 0;
}
}
else
{
Elf_External_Rela *erela;
Elf_External_Rela *erelaend;
Elf_Internal_Rela *irela;
BFD_ASSERT (rel_hdr->sh_entsize == sizeof (Elf_External_Rela));
erela = (Elf_External_Rela *) external_relocs;
erelaend = erela + o->reloc_count;
irela = internal_relocs;
for (; erela < erelaend; erela++, irela++)
elf_swap_reloca_in (abfd, erela, irela);
}
/* Cache the results for next time, if we can. */
if (keep_memory)