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* elf32-mips.c (_bfd_mips_elf_relocate_section): Do proper

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sign-extension and big-endian compensation for
R_MIPS_64 even in ld -r.
This commit is contained in:
Geoffrey Keating 2000-03-11 02:23:10 +00:00
parent bb2d6cd7b1
commit 7893e6a2a7
2 changed files with 51 additions and 4 deletions
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6
bfd/ChangeLog
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@ -1,3 +1,9 @@
2000-03-10 Geoff Keating <geoffk@cygnus.com>
* elf32-mips.c (_bfd_mips_elf_relocate_section): Do proper
sign-extension and big-endian compensation for
R_MIPS_64 even in ld -r.
2000-03-10 Geoffrey Keating <geoffk@cygnus.com>
* elf32-mips.c (mips_elf_next_relocation): Rename from

49
bfd/elf32-mips.c
View File

@ -6668,6 +6668,10 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
Elf_Internal_Sym *sym;
unsigned long r_symndx;
if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd)
&& bfd_big_endian (input_bfd))
rel->r_offset -= 4;
/* Since we're just relocating, all we need to do is copy
the relocations back out to the object file, unless
they're against a section symbol, in which case we need
@ -6724,6 +6728,43 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
writing will be source of the addend in the final
link. */
addend &= howto->src_mask;
if (r_type == R_MIPS_64 && !ABI_64_P (output_bfd))
/* See the comment above about using R_MIPS_64 in the 32-bit
ABI. Here, we need to update the addend. It would be
possible to get away with just using the R_MIPS_32 reloc
but for endianness. */
{
bfd_vma sign_bits;
bfd_vma low_bits;
bfd_vma high_bits;
if (addend & 0x80000000u)
sign_bits = 0xffffffffu;
else
sign_bits = 0;
/* If we don't know that we have a 64-bit type,
do two separate stores. */
if (bfd_big_endian (input_bfd))
{
/* Store the sign-bits (which are most significant)
first. */
low_bits = sign_bits;
high_bits = addend;
}
else
{
low_bits = addend;
high_bits = sign_bits;
}
bfd_put_32 (input_bfd, low_bits,
contents + rel->r_offset);
bfd_put_32 (input_bfd, high_bits,
contents + rel->r_offset + 4);
continue;
}
if (!mips_elf_perform_relocation (info, howto, rel, addend,
input_bfd, input_section,
contents, false))
@ -6818,13 +6859,13 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
bfd_vma low_bits;
bfd_vma high_bits;
if (value & 0x80000000)
sign_bits = 0xffffffff;
if (value & 0x80000000u)
sign_bits = 0xffffffffu;
else
sign_bits = 0;
/* If only a 32-bit VMA is available do two separate
stores. */
/* If we don't know that we have a 64-bit type,
do two separate stores. */
if (bfd_big_endian (input_bfd))
{
/* Undo what we did above. */