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[gas] 

* config/tc-mips.c (md_apply_fix): Prevent addend from becoming zero
	if it's expected to be non-zero.
[gas/testsuite]
	* gas/mips/elf-rel3.s: Add zero word to end of file.
This commit is contained in:
Richard Sandiford 2001-07-04 09:49:29 +00:00
parent 5e7079af51
commit 7461da6e23
4 changed files with 47 additions and 2 deletions
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5
gas/ChangeLog
View File

@ -1,3 +1,8 @@
2001-07-04 Richard Sandiford <rsandifo@redhat.com>
* config/tc-mips.c (md_apply_fix): Prevent addend from becoming zero
if it's expected to be non-zero.
2001-07-03 Nick Clifton <nickc@cambridge.redhat.com>
* config/tc-sh.c (sh_frob_section): Replace symbol_get_frag() with

39
gas/config/tc-mips.c
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@ -9612,9 +9612,44 @@ md_apply_fix (fixP, valueP)
{
/* In this case, the bfd_install_relocation routine will
incorrectly add the symbol value back in. We just want
the addend to appear in the object file.
FIXME: If this makes VALUE zero, we're toast. */
the addend to appear in the object file. */
value -= symval;
/* Make sure the addend is still non-zero. If it became zero
after the last operation, set it to a spurious value and
subtract the same value from the object file's contents. */
if (value == 0)
{
value = 8;
/* The in-place addends for LO16 relocations are signed;
leave the matching HI16 in-place addends as zero. */
if (fixP->fx_r_type != BFD_RELOC_HI16_S)
{
reloc_howto_type *howto;
bfd_vma contents, mask, field;
howto = bfd_reloc_type_lookup (stdoutput,
fixP->fx_r_type);
contents = bfd_get_bits (fixP->fx_frag->fr_literal
+ fixP->fx_where,
fixP->fx_size * 8,
target_big_endian);
/* MASK has bits set where the relocation should go.
FIELD is -value, shifted into the appropriate place
for this relocation. */
mask = 1 << (howto->bitsize - 1);
mask = (((mask - 1) << 1) | 1) << howto->bitpos;
field = (-value >> howto->rightshift) << howto->bitpos;
bfd_put_bits ((field & mask) | (contents & ~mask),
fixP->fx_frag->fr_literal + fixP->fx_where,
fixP->fx_size * 8,
target_big_endian);
}
}
}
}

4
gas/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2001-07-04 Richard Sandiford <rsandifo@redhat.com>
* gas/mips/elf-rel3.s: Add zero word to end of file.
2001-07-03 H.J. Lu <hjl@gnu.org>
* gas/mips/lb-xgot-ilocks.d: Add -march=r3900.

1
gas/testsuite/gas/mips/elf-rel3.s
View File

@ -9,3 +9,4 @@ x:
b:
.word b+4
.word x
.word 0