/* CGEN generic disassembler support code.
+ Copyright (C) 1996-2021 Free Software Foundation, Inc.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
- 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 "bfd.h"
#include "symcat.h"
#include "opcode/cgen.h"
+#include "disassemble.h"
-static CGEN_INSN_LIST * hash_insn_array PARAMS ((CGEN_CPU_DESC, const CGEN_INSN *, int, int, CGEN_INSN_LIST **, CGEN_INSN_LIST *));
-static CGEN_INSN_LIST * hash_insn_list PARAMS ((CGEN_CPU_DESC, const CGEN_INSN_LIST *, CGEN_INSN_LIST **, CGEN_INSN_LIST *));
-static void build_dis_hash_table PARAMS ((CGEN_CPU_DESC));
-static int count_decodable_bits PARAMS ((const CGEN_INSN *));
-static void add_insn_to_hash_chain PARAMS ((CGEN_INSN_LIST *,
- const CGEN_INSN *,
- CGEN_INSN_LIST **,
- unsigned int));
+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_dis_hash_table (CGEN_CPU_DESC);
+static int count_decodable_bits (const CGEN_INSN *);
+static void add_insn_to_hash_chain (CGEN_INSN_LIST *,
+ const CGEN_INSN *,
+ CGEN_INSN_LIST **,
+ unsigned int);
/* Return the number of decodable bits in this insn. */
static int
-count_decodable_bits (insn)
- const CGEN_INSN *insn;
+count_decodable_bits (const CGEN_INSN *insn)
{
unsigned mask = CGEN_INSN_BASE_MASK (insn);
int bits = 0;
- int m;
+ unsigned m;
+
for (m = 1; m != 0; m <<= 1)
{
if (mask & m)
return bits;
}
-/* Add an instruction to the hash chain. */
+/* Add an instruction to the hash chain. */
static void
-add_insn_to_hash_chain (hentbuf, insn, htable, hash)
- CGEN_INSN_LIST *hentbuf;
- const CGEN_INSN *insn;
- CGEN_INSN_LIST **htable;
- unsigned int hash;
+add_insn_to_hash_chain (CGEN_INSN_LIST *hentbuf,
+ const CGEN_INSN *insn,
+ CGEN_INSN_LIST **htable,
+ unsigned int hash)
{
CGEN_INSN_LIST *current_buf;
CGEN_INSN_LIST *previous_buf;
The result is a pointer to the next entry to use.
The table is scanned backwards as additions are made to the front of the
- list and we want earlier ones to be prefered. */
+ list and we want earlier ones to be preferred. */
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 ATTRIBUTE_UNUSED;
- 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 big_p = CGEN_CPU_ENDIAN (cd) == CGEN_ENDIAN_BIG;
+ int big_p = CGEN_CPU_INSN_ENDIAN (cd) == CGEN_ENDIAN_BIG;
int i;
for (i = count - 1; i >= 0; --i, ++hentbuf)
{
unsigned int hash;
- char buf [4];
+ char buf [8];
unsigned long value;
const CGEN_INSN *insn = &insns[i];
+ size_t size;
if (! (* cd->dis_hash_p) (insn))
continue;
to hash on, so set both up. */
value = CGEN_INSN_BASE_VALUE (insn);
- bfd_put_bits ((bfd_vma) value,
- buf,
- CGEN_INSN_MASK_BITSIZE (insn),
- big_p);
+ size = CGEN_INSN_MASK_BITSIZE (insn);
+ OPCODES_ASSERT (size <= sizeof (buf) * 8);
+ bfd_put_bits ((bfd_vma) value, buf, size, big_p);
hash = (* cd->dis_hash) (buf, value);
add_insn_to_hash_chain (hentbuf, insn, htable, hash);
}
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)
{
- int big_p = CGEN_CPU_ENDIAN (cd) == CGEN_ENDIAN_BIG;
+ int big_p = CGEN_CPU_INSN_ENDIAN (cd) == CGEN_ENDIAN_BIG;
const CGEN_INSN_LIST *ilist;
for (ilist = insns; ilist != NULL; ilist = ilist->next, ++ hentbuf)
/* Build the disassembler instruction hash table. */
static void
-build_dis_hash_table (cd)
- CGEN_CPU_DESC cd;
+build_dis_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;
dis_hash_table, hash_entry_buf);
/* Add runtime added insns.
- Later added insns will be prefered over earlier ones. */
+ Later added insns will be preferred over earlier ones. */
hash_entry_buf = hash_insn_list (cd, insn_table->new_entries,
dis_hash_table, hash_entry_buf);
/* Return the first entry in the hash list for INSN. */
CGEN_INSN_LIST *
-cgen_dis_lookup_insn (cd, buf, value)
- CGEN_CPU_DESC cd;
- const char * buf;
- CGEN_INSN_INT value;
+cgen_dis_lookup_insn (CGEN_CPU_DESC cd, const char * buf, CGEN_INSN_INT value)
{
unsigned int hash;
projects / binutils-gdb.git / blobdiff