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-rw-r--r--contrib/binutils/gas/cgen.c87
1 files changed, 36 insertions, 51 deletions
diff --git a/contrib/binutils/gas/cgen.c b/contrib/binutils/gas/cgen.c
index 67b9b16..5ce7f4c 100644
--- a/contrib/binutils/gas/cgen.c
+++ b/contrib/binutils/gas/cgen.c
@@ -1,22 +1,22 @@
/* GAS interface for targets using CGEN: Cpu tools GENerator.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
-This file is part of GAS, the GNU Assembler.
+ This file is part of GAS, the GNU Assembler.
-GAS is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+ GAS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
-GAS is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ GAS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with GAS; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with GAS; see the file COPYING. If not, write to the Free Software
+ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <setjmp.h>
#include "ansidecl.h"
@@ -29,7 +29,7 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "cgen.h"
#include "dwarf2dbg.h"
-static void queue_fixup PARAMS ((int, int, expressionS *));
+static void queue_fixup (int, int, expressionS *);
/* Opcode table descriptor, must be set by md_begin. */
@@ -61,7 +61,8 @@ cgen_asm_record_register (name, number)
OPINDEX is the index in the operand table.
OPINFO is something the caller chooses to help in reloc determination. */
-struct fixup {
+struct fixup
+{
int opindex;
int opinfo;
expressionS exp;
@@ -112,7 +113,7 @@ queue_fixup (opindex, opinfo, expP)
gas_cgen_initialize_saved_fixups_array():
Sets num_fixups_in_chain to 0 for each element. Call this from
md_begin() if you plan to use these functions and you want the
- fixup count in each element to be set to 0 intially. This is
+ fixup count in each element to be set to 0 initially. This is
not necessary, but it's included just in case. It performs
the same function for each element in the array of fixup chains
that gas_init_parse() performs for the current fixups.
@@ -130,7 +131,8 @@ queue_fixup (opindex, opinfo, expP)
element - swap the current fixups with those in this element number.
*/
-struct saved_fixups {
+struct saved_fixups
+{
struct fixup fixup_chain[GAS_CGEN_MAX_FIXUPS];
int num_fixups_in_chain;
};
@@ -240,7 +242,6 @@ gas_cgen_record_fixup (frag, where, insn, length, operand, opinfo, symbol, offse
/* It may seem strange to use operand->attrs and not insn->attrs here,
but it is the operand that has a pc relative relocation. */
-
fixP = fix_new (frag, where, length / 8, symbol, offset,
CGEN_OPERAND_ATTR_VALUE (operand, CGEN_OPERAND_PCREL_ADDR),
(bfd_reloc_code_real_type)
@@ -279,7 +280,6 @@ gas_cgen_record_fixup_exp (frag, where, insn, length, operand, opinfo, exp)
/* It may seem strange to use operand->attrs and not insn->attrs here,
but it is the operand that has a pc relative relocation. */
-
fixP = fix_new_exp (frag, where, length / 8, exp,
CGEN_OPERAND_ATTR_VALUE (operand, CGEN_OPERAND_PCREL_ADDR),
(bfd_reloc_code_real_type)
@@ -431,7 +431,7 @@ gas_cgen_finish_insn (insn, buf, length, relax_p, result)
Relaxable instructions: We need to ensure we allocate enough
space for the largest insn. */
- if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAX))
+ if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED))
/* These currently shouldn't get here. */
abort ();
@@ -531,7 +531,7 @@ gas_cgen_finish_insn (insn, buf, length, relax_p, result)
cgen_operand_lookup_by_num (gas_cgen_cpu_desc, fixups[i].opindex);
/* Don't create fixups for these. That's done during relaxation.
- We don't need to test for CGEN_INSN_RELAX as they can't get here
+ We don't need to test for CGEN_INSN_RELAXED as they can't get here
(see above). */
if (relax_p
&& CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXABLE)
@@ -580,39 +580,12 @@ gas_cgen_md_apply_fix3 (fixP, valP, seg)
/* Canonical name, since used a lot. */
CGEN_CPU_DESC cd = gas_cgen_cpu_desc;
- /* FIXME FIXME FIXME: The value we are passed in *valuep includes
- the symbol values. Since we are using BFD_ASSEMBLER, if we are
- doing this relocation the code in write.c is going to call
- bfd_install_relocation, which is also going to use the symbol
- value. That means that if the reloc is fully resolved we want to
- use *valuep since bfd_install_relocation is not being used.
- However, if the reloc is not fully resolved we do not want to use
- *valuep, and must use fx_offset instead. However, if the reloc
- is PC relative, we do want to use *valuep since it includes the
- result of md_pcrel_from. This is confusing. */
-
if (fixP->fx_addsy == (symbolS *) NULL)
fixP->fx_done = 1;
- else if (fixP->fx_pcrel)
- ;
-
- else
- {
- value = fixP->fx_offset;
-
- if (fixP->fx_subsy != (symbolS *) NULL)
- {
- if (S_GET_SEGMENT (fixP->fx_subsy) == absolute_section)
- value -= S_GET_VALUE (fixP->fx_subsy);
- else
- {
- /* We don't actually support subtracting a symbol. */
- as_bad_where (fixP->fx_file, fixP->fx_line,
- _("expression too complex"));
- }
- }
- }
+ /* We don't actually support subtracting a symbol. */
+ if (fixP->fx_subsy != (symbolS *) NULL)
+ as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
{
@@ -743,3 +716,15 @@ gas_cgen_tc_gen_reloc (section, fixP)
reloc->address = fixP->fx_frag->fr_address + fixP->fx_where;
return reloc;
}
+
+/* Perform any cgen specific initialisation.
+ Called after gas_cgen_cpu_desc has been created. */
+
+void
+gas_cgen_begin ()
+{
+ if (flag_signed_overflow_ok)
+ cgen_set_signed_overflow_ok (gas_cgen_cpu_desc);
+ else
+ cgen_clear_signed_overflow_ok (gas_cgen_cpu_desc);
+}
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