41d481b065
- an asmconv based tool for conversion from GNU ia32 assembly to ACK assembly
- in contrast to asmconv it is a one way tool only
- as the GNU assembly in Minix does not prefix global C symbols with _ gas2ack
detects such symbols and prefixes them to be compliant with the ACK convention
- gas2ack preserves comments and unexpanded macros
- bunch of fixes to the asmconv GNU->ACK direction
- support of more instructions that ACK does not know but are in use in Minix
- it is meant as a temporary solution as long as ACK will be a supported
compiler for the core system
117 lines
2.4 KiB
C
117 lines
2.4 KiB
C
/* asmconv 1.11 - convert 80X86 assembly Author: Kees J. Bot
|
|
* 24 Dec 1993
|
|
*/
|
|
static char version[] = "1.11";
|
|
|
|
#define nil 0
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include "asmconv.h"
|
|
#include "asm86.h"
|
|
#include "languages.h"
|
|
|
|
void fatal(char *label)
|
|
{
|
|
fprintf(stderr, "asmconv: %s: %s\n", label, strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
void *allocate(void *mem, size_t size)
|
|
/* A checked malloc/realloc(). Yes, I know ISO C allows realloc(NULL, size). */
|
|
{
|
|
mem= mem == nil ? malloc(size) : realloc(mem, size);
|
|
if (mem == nil) fatal("malloc()");
|
|
return mem;
|
|
}
|
|
|
|
void deallocate(void *mem)
|
|
/* Free a malloc()d cell. (Yes I know ISO C allows free(NULL) */
|
|
{
|
|
if (mem != nil) free(mem);
|
|
}
|
|
|
|
char *copystr(const char *s)
|
|
{
|
|
char *c;
|
|
|
|
c= allocate(nil, (strlen(s) + 1) * sizeof(s[0]));
|
|
strcpy(c, s);
|
|
return c;
|
|
}
|
|
|
|
int isanumber(const char *s)
|
|
/* True if s can be turned into a number. */
|
|
{
|
|
char *end;
|
|
|
|
(void) strtol(s, &end, 0);
|
|
return end != s && *end == 0;
|
|
}
|
|
|
|
/* "Invisible" globals. */
|
|
int asm_mode32= (sizeof(int) == 4);
|
|
int err_code= EXIT_SUCCESS;
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
void (*parse_init)(char *file);
|
|
asm86_t *(*get_instruction)(void);
|
|
void (*emit_init)(char *file, const char *banner);
|
|
void (*emit_instruction)(asm86_t *instr);
|
|
char *lang_parse, *lang_emit, *input_file, *output_file;
|
|
asm86_t *instr;
|
|
char banner[80];
|
|
|
|
if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'm') {
|
|
if (strcmp(argv[1], "-mi86") == 0) {
|
|
set_use16();
|
|
} else
|
|
if (strcmp(argv[1], "-mi386") == 0) {
|
|
set_use32();
|
|
} else {
|
|
fprintf(stderr, "asmconv: '%s': unknown machine\n",
|
|
argv[1]+2);
|
|
}
|
|
argc--;
|
|
argv++;
|
|
}
|
|
|
|
if (argc > 3) {
|
|
fprintf(stderr, "Usage: gas2ack [input-file [output-file]]\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
input_file= argc < 1 ? nil : argv[1];
|
|
output_file= argc < 2 ? nil : argv[2];
|
|
|
|
parse_init= gnu_parse_init;
|
|
get_instruction= gnu_get_instruction;
|
|
|
|
emit_init= ack_emit_init;
|
|
emit_instruction= ack_emit_instruction;
|
|
|
|
sprintf(banner, "Translated from GNU to ACK by gas2ack");
|
|
|
|
/* get localy defined labels first */
|
|
(*parse_init)(input_file);
|
|
for (;;) {
|
|
instr= (*get_instruction)();
|
|
if (instr == nil) break;
|
|
del_asm86(instr);
|
|
}
|
|
|
|
(*parse_init)(input_file);
|
|
(*emit_init)(output_file, banner);
|
|
for (;;) {
|
|
instr= (*get_instruction)();
|
|
(*emit_instruction)(instr);
|
|
if (instr == nil) break;
|
|
del_asm86(instr);
|
|
}
|
|
exit(err_code);
|
|
}
|