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/*
* GAS-compatible parser Intel syntax support
*
* Copyright (C) 2010 Alexei Svitkine
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of other contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <util.h>
#include <libyasm.h>
#include "modules/parsers/gas/gas-parser.h"
#include "modules/parsers/nasm/nasm-parser-struct.h"
extern yasm_bytecode *gas_intel_syntax_parse_instr(yasm_parser_nasm *parser_nasm, unsigned char *instr);
#define SET_FIELDS(to, from) \
(to)->object = (from)->object; \
(to)->locallabel_base = (from)->locallabel_base; \
(to)->locallabel_base_len = (from)->locallabel_base_len; \
(to)->preproc = (from)->preproc; \
(to)->errwarns = (from)->errwarns; \
(to)->linemap = (from)->linemap; \
(to)->prev_bc = (from)->prev_bc;
yasm_bytecode *parse_instr_intel(yasm_parser_gas *parser_gas)
{
char *stok, *slim;
unsigned char *line;
size_t length;
yasm_parser_nasm parser_nasm;
yasm_bytecode *bc;
memset(&parser_nasm, 0, sizeof(parser_nasm));
yasm_arch_set_var(parser_gas->object->arch, "gas_intel_mode", 1);
SET_FIELDS(&parser_nasm, parser_gas);
parser_nasm.masm = 1;
stok = (char *) parser_gas->s.tok;
slim = (char *) parser_gas->s.lim;
length = 0;
while (&stok[length] < slim && stok[length] != '\n') {
length++;
}
if (&stok[length] == slim && parser_gas->line) {
line = yasm_xmalloc(length + parser_gas->lineleft + 1);
memcpy(line, parser_gas->s.tok, length);
memcpy(line + length, parser_gas->linepos, parser_gas->lineleft);
length += parser_gas->lineleft;
if (line[length - 1] == '\n') length--;
} else {
line = yasm_xmalloc(length + 1);
memcpy(line, parser_gas->s.tok, length);
}
line[length] = '\0';
bc = gas_intel_syntax_parse_instr(&parser_nasm, line);
SET_FIELDS(parser_gas, &parser_nasm);
yasm_arch_set_var(parser_gas->object->arch, "gas_intel_mode", 0);
yasm_xfree(line);
return bc;
}
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