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authorAlexandre Oliva <aoliva@redhat.com>2002-12-12 04:40:07 +0000
committerAlexandre Oliva <aoliva@redhat.com>2002-12-12 04:40:07 +0000
commitaf6ae2ade7295c47648806baf4551e870508a2cb (patch)
tree408c2b8a9105611db919c177e05934814744d9a1 /gas/config
parentc9c1e416d7dd1a35bd7c1a96d034dca1d5071cd1 (diff)
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* tc-mips.c (RELAX_BRANCH_ENCODE): Remove reloc_s2 argument.
Adjust callers. (RELAX_BRANCH_RELOC_S2): Delete. (append_insn): Use only BFD_RELOC_16_PCREL_S2 for branches. Do not handle BFD_RELOC_16_PCREL. (macro_build, mips_ip): Likewise. (md_pcrel_from): Return 4 for undefined symbols regardless of mips_pic. (md_apply_fix3): Use only BFD_RELOC_16_PCREL_S2 for branches. Don't dereference howto if no such relocation is available. Do not apply hack for in-place zero addend in NEWABI. (md_convert_frag): Use only BFD_RELOC_16_PCREL_S2 for branches.
Diffstat (limited to 'gas/config')
-rw-r--r--gas/config/tc-mips.c56
1 files changed, 13 insertions, 43 deletions
diff --git a/gas/config/tc-mips.c b/gas/config/tc-mips.c
index e5b9aa9..85cbe62 100644
--- a/gas/config/tc-mips.c
+++ b/gas/config/tc-mips.c
@@ -714,16 +714,14 @@ static int mips_relax_branch;
but it's not clear that it would actually improve performance. */
-#define RELAX_BRANCH_ENCODE(reloc_s2, uncond, likely, link, toofar) \
+#define RELAX_BRANCH_ENCODE(uncond, likely, link, toofar) \
((relax_substateT) \
(0xc0000000 \
| ((toofar) ? 1 : 0) \
| ((link) ? 2 : 0) \
| ((likely) ? 4 : 0) \
- | ((uncond) ? 8 : 0) \
- | ((reloc_s2) ? 16 : 0)))
+ | ((uncond) ? 8 : 0)))
#define RELAX_BRANCH_P(i) (((i) & 0xf0000000) == 0xc0000000)
-#define RELAX_BRANCH_RELOC_S2(i) (((i) & 16) != 0)
#define RELAX_BRANCH_UNCOND(i) (((i) & 8) != 0)
#define RELAX_BRANCH_LIKELY(i) (((i) & 4) != 0)
#define RELAX_BRANCH_LINK(i) (((i) & 2) != 0)
@@ -2006,9 +2004,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi)
if (place == NULL
&& address_expr
- && ((*reloc_type == BFD_RELOC_16_PCREL
- && address_expr->X_op != O_constant)
- || *reloc_type == BFD_RELOC_16_PCREL_S2)
+ && *reloc_type == BFD_RELOC_16_PCREL_S2
&& (pinfo & INSN_UNCOND_BRANCH_DELAY || pinfo & INSN_COND_BRANCH_DELAY
|| pinfo & INSN_COND_BRANCH_LIKELY)
&& mips_relax_branch
@@ -2025,8 +2021,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi)
(pinfo & INSN_UNCOND_BRANCH_DELAY) ? -1
: (pinfo & INSN_COND_BRANCH_LIKELY) ? 1 : 0), 4,
RELAX_BRANCH_ENCODE
- (*reloc_type == BFD_RELOC_16_PCREL_S2,
- pinfo & INSN_UNCOND_BRANCH_DELAY,
+ (pinfo & INSN_UNCOND_BRANCH_DELAY,
pinfo & INSN_COND_BRANCH_LIKELY,
pinfo & INSN_WRITE_GPR_31,
0),
@@ -2130,10 +2125,6 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi)
| ((address_expr->X_add_number & 0x3fffc) >> 2));
break;
- case BFD_RELOC_16_PCREL:
- ip->insn_opcode |= address_expr->X_add_number & 0xffff;
- break;
-
case BFD_RELOC_16_PCREL_S2:
goto need_reloc;
@@ -2149,8 +2140,7 @@ append_insn (place, ip, address_expr, reloc_type, unmatched_hi)
{
fixp[0] = fix_new_exp (frag_now, f - frag_now->fr_literal, 4,
address_expr,
- (*reloc_type == BFD_RELOC_16_PCREL
- || *reloc_type == BFD_RELOC_16_PCREL_S2),
+ *reloc_type == BFD_RELOC_16_PCREL_S2,
reloc_type[0]);
/* These relocations can have an addend that won't fit in
@@ -3117,10 +3107,7 @@ macro_build (place, counter, ep, name, fmt, va_alist)
ep = NULL;
}
else
- if (mips_pic == EMBEDDED_PIC)
- *r = BFD_RELOC_16_PCREL_S2;
- else
- *r = BFD_RELOC_16_PCREL;
+ *r = BFD_RELOC_16_PCREL_S2;
continue;
case 'a':
@@ -9013,10 +9000,7 @@ mips_ip (str, ip)
continue;
case 'p': /* pc relative offset */
- if (mips_pic == EMBEDDED_PIC)
- *offset_reloc = BFD_RELOC_16_PCREL_S2;
- else
- *offset_reloc = BFD_RELOC_16_PCREL;
+ *offset_reloc = BFD_RELOC_16_PCREL_S2;
my_getExpression (&offset_expr, s);
s = expr_end;
continue;
@@ -10867,14 +10851,7 @@ md_pcrel_from (fixP)
if (OUTPUT_FLAVOR != bfd_target_aout_flavour
&& fixP->fx_addsy != (symbolS *) NULL
&& ! S_IS_DEFINED (fixP->fx_addsy))
- {
- /* This makes a branch to an undefined symbol be a branch to the
- current location. */
- if (mips_pic == EMBEDDED_PIC)
- return 4;
- else
- return 1;
- }
+ return 4;
/* Return the address of the delay slot. */
return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
@@ -11105,7 +11082,7 @@ md_apply_fix3 (fixP, valP, seg)
value -= symval;
howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type);
- if (value != 0 && howto->partial_inplace
+ if (value != 0 && howto && howto->partial_inplace
&& (! fixP->fx_pcrel || howto->pcrel_offset))
{
/* In this case, the bfd_install_relocation routine will
@@ -11169,8 +11146,7 @@ md_apply_fix3 (fixP, valP, seg)
/* BFD's REL handling, for MIPS, is _very_ weird.
This gives the right results, but it can't possibly
be the way things are supposed to work. */
- if ((fixP->fx_r_type != BFD_RELOC_16_PCREL
- && fixP->fx_r_type != BFD_RELOC_16_PCREL_S2)
+ if (fixP->fx_r_type != BFD_RELOC_16_PCREL_S2
|| S_GET_SEGMENT (fixP->fx_addsy) != undefined_section)
value += fixP->fx_frag->fr_address + fixP->fx_where;
}
@@ -11344,15 +11320,12 @@ md_apply_fix3 (fixP, valP, seg)
as_bad_where (fixP->fx_file, fixP->fx_line,
_("Branch to odd address (%lx)"), (long) value);
- /* Fall through. */
-
- case BFD_RELOC_16_PCREL:
/*
* We need to save the bits in the instruction since fixup_segment()
* might be deleting the relocation entry (i.e., a branch within
* the current segment).
*/
- if (!fixP->fx_done && value != 0)
+ if (!fixP->fx_done && (value != 0 || HAVE_NEWABI))
break;
/* If 'value' is zero, the remaining reloc code won't actually
do the store, so it must be done here. This is probably
@@ -12959,8 +12932,7 @@ relaxed_branch_length (fragp, sec, update)
if (fragp && update && toofar != RELAX_BRANCH_TOOFAR (fragp->fr_subtype))
fragp->fr_subtype
- = RELAX_BRANCH_ENCODE (RELAX_BRANCH_RELOC_S2 (fragp->fr_subtype),
- RELAX_BRANCH_UNCOND (fragp->fr_subtype),
+ = RELAX_BRANCH_ENCODE (RELAX_BRANCH_UNCOND (fragp->fr_subtype),
RELAX_BRANCH_LIKELY (fragp->fr_subtype),
RELAX_BRANCH_LINK (fragp->fr_subtype),
toofar);
@@ -13454,9 +13426,7 @@ md_convert_frag (abfd, asec, fragp)
fixp = fix_new_exp (fragp, buf - (bfd_byte *)fragp->fr_literal,
4, &exp, 1,
- RELAX_BRANCH_RELOC_S2 (fragp->fr_subtype)
- ? BFD_RELOC_16_PCREL_S2
- : BFD_RELOC_16_PCREL);
+ BFD_RELOC_16_PCREL_S2);
fixp->fx_file = fragp->fr_file;
fixp->fx_line = fragp->fr_line;