/* CGEN generic assembler support code.
+ Copyright (C) 1996-2020 Free Software Foundation, Inc.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of libopcodes.
- This file is part of the GNU Binutils and GDB, the GNU debugger.
-
- This program is free software; you can redistribute it and/or modify
+ This library 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)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
- This program 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.
+ It 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 this program; if not, write to the Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "sysdep.h"
#include <stdio.h>
-#include <ctype.h>
#include "ansidecl.h"
#include "libiberty.h"
+#include "safe-ctype.h"
#include "bfd.h"
#include "symcat.h"
#include "opcode/cgen.h"
#include "opintl.h"
+static CGEN_INSN_LIST * hash_insn_array (CGEN_CPU_DESC, const CGEN_INSN *, int, int, CGEN_INSN_LIST **, CGEN_INSN_LIST *);
+static CGEN_INSN_LIST * hash_insn_list (CGEN_CPU_DESC, const CGEN_INSN_LIST *, CGEN_INSN_LIST **, CGEN_INSN_LIST *);
+static void build_asm_hash_table (CGEN_CPU_DESC);
+
/* Set the cgen_parse_operand_fn callback. */
void
-cgen_set_parse_operand_fn (cd, fn)
- CGEN_CPU_DESC cd;
- cgen_parse_operand_fn fn;
+cgen_set_parse_operand_fn (CGEN_CPU_DESC cd, cgen_parse_operand_fn fn)
{
cd->parse_operand_fn = fn;
}
/* Called whenever starting to parse an insn. */
void
-cgen_init_parse_operand (cd)
- CGEN_CPU_DESC cd;
+cgen_init_parse_operand (CGEN_CPU_DESC cd)
{
/* This tells the callback to re-initialize. */
(void) (* cd->parse_operand_fn)
list and we want earlier ones to be prefered. */
static CGEN_INSN_LIST *
-hash_insn_array (cd, insns, count, entsize, htable, hentbuf)
- CGEN_CPU_DESC cd;
- const CGEN_INSN *insns;
- int count;
- int entsize;
- CGEN_INSN_LIST **htable;
- CGEN_INSN_LIST *hentbuf;
+hash_insn_array (CGEN_CPU_DESC cd,
+ const CGEN_INSN *insns,
+ int count,
+ int entsize ATTRIBUTE_UNUSED,
+ CGEN_INSN_LIST **htable,
+ CGEN_INSN_LIST *hentbuf)
{
int i;
in a list. */
static CGEN_INSN_LIST *
-hash_insn_list (cd, insns, htable, hentbuf)
- CGEN_CPU_DESC cd;
- const CGEN_INSN_LIST *insns;
- CGEN_INSN_LIST **htable;
- CGEN_INSN_LIST *hentbuf;
+hash_insn_list (CGEN_CPU_DESC cd,
+ const CGEN_INSN_LIST *insns,
+ CGEN_INSN_LIST **htable,
+ CGEN_INSN_LIST *hentbuf)
{
const CGEN_INSN_LIST *ilist;
/* Build the assembler instruction hash table. */
static void
-build_asm_hash_table (cd)
- CGEN_CPU_DESC cd;
+build_asm_hash_table (CGEN_CPU_DESC cd)
{
int count = cgen_insn_count (cd) + cgen_macro_insn_count (cd);
CGEN_INSN_TABLE *insn_table = &cd->insn_table;
/* Return the first entry in the hash list for INSN. */
CGEN_INSN_LIST *
-cgen_asm_lookup_insn (cd, insn)
- CGEN_CPU_DESC cd;
- const char *insn;
+cgen_asm_lookup_insn (CGEN_CPU_DESC cd, const char *insn)
{
unsigned int hash;
recording something in the keyword table]. */
const char *
-cgen_parse_keyword (cd, strp, keyword_table, valuep)
- CGEN_CPU_DESC cd;
- const char **strp;
- CGEN_KEYWORD *keyword_table;
- long *valuep;
+cgen_parse_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ const char **strp,
+ CGEN_KEYWORD *keyword_table,
+ long *valuep)
{
const CGEN_KEYWORD_ENTRY *ke;
char buf[256];
const char *p,*start;
+ if (keyword_table->name_hash_table == NULL)
+ (void) cgen_keyword_search_init (keyword_table, NULL);
+
p = start = *strp;
- /* Allow any first character.
- Note that this allows recognizing ",a" for the annul flag in sparc
- even though "," is subsequently not a valid keyword char. */
+ /* Allow any first character. This is to make life easier for
+ the fairly common case of suffixes, eg. 'ld.b.w', where the first
+ character of the suffix ('.') is special. */
if (*p)
++p;
- /* Now allow letters, digits, and _. */
+ /* Allow letters, digits, and any special characters. */
while (((p - start) < (int) sizeof (buf))
- && (isalnum ((unsigned char) *p) || *p == '_'))
+ && *p
+ && (ISALNUM (*p)
+ || *p == '_'
+ || strchr (keyword_table->nonalpha_chars, *p)))
++p;
if (p - start >= (int) sizeof (buf))
- return _("unrecognized keyword/register name");
-
- memcpy (buf, start, p - start);
- buf[p - start] = 0;
+ {
+ /* All non-empty CGEN keywords can fit into BUF. The only thing
+ we can match here is the empty keyword. */
+ buf[0] = 0;
+ }
+ else
+ {
+ memcpy (buf, start, p - start);
+ buf[p - start] = 0;
+ }
ke = cgen_keyword_lookup_name (keyword_table, buf);
cgen_parse_address. */
const char *
-cgen_parse_signed_integer (cd, strp, opindex, valuep)
- CGEN_CPU_DESC cd;
- const char **strp;
- int opindex;
- long *valuep;
+cgen_parse_signed_integer (CGEN_CPU_DESC cd,
+ const char **strp,
+ int opindex,
+ long *valuep)
{
bfd_vma value;
enum cgen_parse_operand_result result;
&result, &value);
/* FIXME: Examine `result'. */
if (!errmsg)
- *valuep = value;
+ {
+ /* Handle the case where a hex value is parsed on a 64-bit host.
+ A value like 0xffffe000 is clearly intended to be a negative
+ 16-bit value, but on a 64-bit host it will be parsed by gas
+ as 0x00000000ffffe000.
+
+ The shifts below are designed not to produce compile time
+ warnings on a 32-bit host. */
+ if (sizeof (value) > 4
+ && result == CGEN_PARSE_OPERAND_RESULT_NUMBER
+ && value > 0
+ && (value & 0x80000000)
+ && ((value >> 31) == 1))
+ value |= ((bfd_vma) -1) << 31;
+
+ *valuep = value;
+ }
return errmsg;
}
cgen_parse_address. */
const char *
-cgen_parse_unsigned_integer (cd, strp, opindex, valuep)
- CGEN_CPU_DESC cd;
- const char **strp;
- int opindex;
- unsigned long *valuep;
+cgen_parse_unsigned_integer (CGEN_CPU_DESC cd,
+ const char **strp,
+ int opindex,
+ unsigned long *valuep)
{
bfd_vma value;
enum cgen_parse_operand_result result;
/* Address parser. */
const char *
-cgen_parse_address (cd, strp, opindex, opinfo, resultp, valuep)
- CGEN_CPU_DESC cd;
- const char **strp;
- int opindex;
- int opinfo;
- enum cgen_parse_operand_result *resultp;
- bfd_vma *valuep;
+cgen_parse_address (CGEN_CPU_DESC cd,
+ const char **strp,
+ int opindex,
+ int opinfo,
+ enum cgen_parse_operand_result *resultp,
+ bfd_vma *valuep)
{
bfd_vma value;
enum cgen_parse_operand_result result_type;
/* Signed integer validation routine. */
const char *
-cgen_validate_signed_integer (value, min, max)
- long value, min, max;
+cgen_validate_signed_integer (long value, long min, long max)
{
if (value < min || value > max)
{
cases where min != 0 (and max > LONG_MAX). */
const char *
-cgen_validate_unsigned_integer (value, min, max)
- unsigned long value, min, max;
+cgen_validate_unsigned_integer (unsigned long value,
+ unsigned long min,
+ unsigned long max)
{
if (value < min || value > max)
{
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