/* ia64-opc.c -- Functions to access the compacted opcode table
- Copyright 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1999-2021 Free Software Foundation, Inc.
Written by Bob Manson of Cygnus Solutions, <manson@cygnus.com>
- This file is part of GDB, GAS, and the GNU binutils.
+ This file is part of the GNU opcodes library.
- GDB, GAS, and the GNU binutils are free software; you can redistribute
- them and/or modify them 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.
+ 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 3, or (at your option)
+ any later version.
- GDB, GAS, and the GNU binutils are distributed in the hope that they
- 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 file; see the file COPYING. If not, write to the
- Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "ansidecl.h"
-#include "libiberty.h"
#include "sysdep.h"
+#include "libiberty.h"
#include "ia64-asmtab.h"
#include "ia64-asmtab.c"
-static void get_opc_prefix PARAMS ((const char **, char *));
-static short int find_string_ent PARAMS ((const char *));
-static short int find_main_ent PARAMS ((short int));
-static short int find_completer PARAMS ((short int, short int, const char *));
-static ia64_insn apply_completer PARAMS ((ia64_insn, int));
-static int extract_op_bits PARAMS ((int, int, int));
-static int extract_op PARAMS ((int, int *, unsigned int *));
-static int opcode_verify PARAMS ((ia64_insn, int, enum ia64_insn_type));
-static int locate_opcode_ent PARAMS ((ia64_insn, enum ia64_insn_type));
+static void get_opc_prefix (const char **, char *);
+static short int find_string_ent (const char *);
+static short int find_main_ent (short int);
+static short int find_completer (short int, short int, const char *);
+static ia64_insn apply_completer (ia64_insn, int);
+static int extract_op_bits (int, int, int);
+static int extract_op (int, int *, unsigned int *);
+static int opcode_verify (ia64_insn, int, enum ia64_insn_type);
+static int locate_opcode_ent (ia64_insn, enum ia64_insn_type);
static struct ia64_opcode *make_ia64_opcode
- PARAMS ((ia64_insn, const char *, int, int));
+ (ia64_insn, const char *, int, int);
static struct ia64_opcode *ia64_find_matching_opcode
- PARAMS ((const char *, short int));
+ (const char *, short int);
const struct ia64_templ_desc ia64_templ_desc[16] =
{
of the opcode, or at the NUL character. */
static void
-get_opc_prefix (ptr, dest)
- const char **ptr;
- char *dest;
+get_opc_prefix (const char **ptr, char *dest)
{
char *c = strchr (*ptr, '.');
if (c != NULL)
STR; return -1 if one does not exist. */
static short
-find_string_ent (str)
- const char *str;
+find_string_ent (const char *str)
{
short start = 0;
short end = sizeof (ia64_strings) / sizeof (const char *);
return -1 if one does not exist. */
static short
-find_main_ent (nameindex)
- short nameindex;
+find_main_ent (short nameindex)
{
short start = 0;
- short end = sizeof (main_table) / sizeof (struct ia64_main_table);
+ short end = ARRAY_SIZE (main_table);
short i = (start + end) / 2;
if (nameindex < main_table[0].name_index
return -1 if one does not exist. */
static short
-find_completer (main_ent, prev_completer, name)
- short main_ent;
- short prev_completer;
- const char *name;
+find_completer (short main_ent, short prev_completer, const char *name)
{
short name_index = find_string_ent (name);
return the result. */
static ia64_insn
-apply_completer (opcode, completer_index)
- ia64_insn opcode;
- int completer_index;
+apply_completer (ia64_insn opcode, int completer_index)
{
ia64_insn mask = completer_table[completer_index].mask;
ia64_insn bits = completer_table[completer_index].bits;
first byte in OP_POINTER.) */
static int
-extract_op_bits (op_pointer, bitoffset, bits)
- int op_pointer;
- int bitoffset;
- int bits;
+extract_op_bits (int op_pointer, int bitoffset, int bits)
{
int res = 0;
state entry in bits is returned. */
static int
-extract_op (op_pointer, opval, op)
- int op_pointer;
- int *opval;
- unsigned int *op;
+extract_op (int op_pointer, int *opval, unsigned int *op)
{
int oplen = 5;
PLACE matches OPCODE and is of type TYPE. */
static int
-opcode_verify (opcode, place, type)
- ia64_insn opcode;
- int place;
- enum ia64_insn_type type;
+opcode_verify (ia64_insn opcode, int place, enum ia64_insn_type type)
{
if (main_table[place].opcode_type != type)
{
priority. */
static int
-locate_opcode_ent (opcode, type)
- ia64_insn opcode;
- enum ia64_insn_type type;
+locate_opcode_ent (ia64_insn opcode, enum ia64_insn_type type)
{
int currtest[41];
int bitpos[41];
unsigned int op;
int currbitnum = bitpos[currstatenum];
int oplen;
- int opval[3];
+ int opval[3] = {0};
int next_op;
int currbit;
bitpos[currstatenum] = currbitnum;
- /* Skip opval[0] bits in the instruction. */
+ /* Skip opval[0] bits in the instruction. */
if (op & 0x40)
{
currbitnum -= opval[0];
}
- /* The value of the current bit being tested. */
+ if (currbitnum < 0)
+ currbitnum = 0;
+
+ /* The value of the current bit being tested. */
currbit = opcode & (((ia64_insn) 1) << currbitnum) ? 1 : 0;
next_op = -1;
if (next_op > 65535)
{
- abort ();
+ return -1;
}
/* Run through the list of opcodes to check, trying to find
/* Construct an ia64_opcode entry based on OPCODE, NAME and PLACE. */
static struct ia64_opcode *
-make_ia64_opcode (opcode, name, place, depind)
- ia64_insn opcode;
- const char *name;
- int place;
- int depind;
+make_ia64_opcode (ia64_insn opcode, const char *name, int place, int depind)
{
struct ia64_opcode *res =
(struct ia64_opcode *) xmalloc (sizeof (struct ia64_opcode));
/* Determine the ia64_opcode entry for the opcode specified by INSN
and TYPE. If a valid entry is not found, return NULL. */
struct ia64_opcode *
-ia64_dis_opcode (insn, type)
- ia64_insn insn;
- enum ia64_insn_type type;
+ia64_dis_opcode (ia64_insn insn, enum ia64_insn_type type)
{
int disent = locate_opcode_ent (insn, type);
matches NAME. Return NULL if one is not found. */
static struct ia64_opcode *
-ia64_find_matching_opcode (name, place)
- const char *name;
- short place;
+ia64_find_matching_opcode (const char *name, short place)
{
char op[129];
const char *suffix;
short name_index;
+ if ((unsigned) place >= ARRAY_SIZE (main_table))
+ return NULL;
+
if (strlen (name) > 128)
{
return NULL;
release any resources used by the returned entry. */
struct ia64_opcode *
-ia64_find_next_opcode (prev_ent)
- struct ia64_opcode *prev_ent;
+ia64_find_next_opcode (struct ia64_opcode *prev_ent)
{
return ia64_find_matching_opcode (prev_ent->name,
prev_ent->ent_index + 1);
release any resources used by the returned entry. */
struct ia64_opcode *
-ia64_find_opcode (name)
- const char *name;
+ia64_find_opcode (const char *name)
{
char op[129];
const char *suffix;
/* Free any resources used by ENT. */
void
-ia64_free_opcode (ent)
- struct ia64_opcode *ent;
+ia64_free_opcode (struct ia64_opcode *ent)
{
free ((void *)ent->name);
free (ent);
}
const struct ia64_dependency *
-ia64_find_dependency (index)
- int index;
+ia64_find_dependency (int dep_index)
{
- index = DEP(index);
+ dep_index = DEP(dep_index);
- if (index < 0
- || index >= (int)(sizeof(dependencies) / sizeof(dependencies[0])))
+ if (dep_index < 0
+ || dep_index >= (int) ARRAY_SIZE (dependencies))
return NULL;
- return &dependencies[index];
+ return &dependencies[dep_index];
}
projects / thirdparty / binutils-gdb.git / blobdiff