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* write.c (fixup_segment): Handle ABS-sym in -sym case rather than

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sym-sym case.
	* config/obj-coff.c (fixup_segment): Likewise.  Permit negative
	symbols if TC_M68K.
	* config/tc-m68k.c (tc_coff_fix2rtype): If fx_tcbit is set, return
	R_RELLONG_NEG.
	(tc_gen_reloc): If fx_tcbit is set, abort.
	(md_apply_fix_2): For a negative reloc, move fx_subsy to fx_addsy,
	and set fx_tcbit.
Permits generating negative relocs for m68k COFF.
This commit is contained in:
Ian Lance Taylor
1995-09-18 21:11:34 +00:00
parent 85f341221b
commit 3b06beb757
2 changed files with 23 additions and 0 deletions
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10
gas/ChangeLog
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@ -1,5 +1,15 @@
Mon Sep 18 15:22:28 1995 Ian Lance Taylor <ian@cygnus.com> Mon Sep 18 15:22:28 1995 Ian Lance Taylor <ian@cygnus.com>
* write.c (fixup_segment): Handle ABS-sym in -sym case rather than
sym-sym case.
* config/obj-coff.c (fixup_segment): Likewise. Permit negative
symbols if TC_M68K.
* config/tc-m68k.c (tc_coff_fix2rtype): If fx_tcbit is set, return
R_RELLONG_NEG.
(tc_gen_reloc): If fx_tcbit is set, abort.
(md_apply_fix_2): For a negative reloc, move fx_subsy to fx_addsy,
and set fx_tcbit.
* config/tc-m68k.c (s_reg): Ignore comment field in MRI mode. * config/tc-m68k.c (s_reg): Ignore comment field in MRI mode.
Mon Sep 18 14:44:04 1995 Arne H. Juul <arnej@pvv.unit.no> Mon Sep 18 14:44:04 1995 Arne H. Juul <arnej@pvv.unit.no>

13
gas/config/tc-m68k.c
View File

@ -562,6 +562,8 @@ short
tc_coff_fix2rtype (fixP) tc_coff_fix2rtype (fixP)
fixS *fixP; fixS *fixP;
{ {
if (fixP->fx_tcbit && fixP->fx_size == 4)
return R_RELLONG_NEG;
#ifdef NO_PCREL_RELOCS #ifdef NO_PCREL_RELOCS
know (fixP->fx_pcrel == 0); know (fixP->fx_pcrel == 0);
return (fixP->fx_size == 1 ? R_RELBYTE return (fixP->fx_size == 1 ? R_RELBYTE
@ -590,6 +592,9 @@ tc_gen_reloc (section, fixp)
arelent *reloc; arelent *reloc;
bfd_reloc_code_real_type code; bfd_reloc_code_real_type code;
if (fixP->fx_tcbit)
abort ();
#define F(SZ,PCREL) (((SZ) << 1) + (PCREL)) #define F(SZ,PCREL) (((SZ) << 1) + (PCREL))
switch (F (fixp->fx_size, fixp->fx_pcrel)) switch (F (fixp->fx_size, fixp->fx_pcrel))
{ {
@ -3354,6 +3359,14 @@ md_apply_fix_2 (fixP, val)
BAD_CASE (fixP->fx_size); BAD_CASE (fixP->fx_size);
} }
/* Fix up a negative reloc. */
if (fixP->fx_addsy == NULL && fixP->fx_subsy != NULL)
{
fixP->fx_addsy = fixP->fx_subsy;
fixP->fx_subsy = NULL;
fixP->fx_tcbit = 1;
}
/* For non-pc-relative values, it's conceivable we might get something /* For non-pc-relative values, it's conceivable we might get something
like "0xff" for a byte field. So extend the upper part of the range like "0xff" for a byte field. So extend the upper part of the range
to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff", to accept such numbers. We arbitrarily disallow "-0xff" or "0xff+0xff",