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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <limits.h>
#include <qbt/parser.h>
#include <qbt/opt.h>
#include <qbt/asm.h>
#include <qbt/debug.h>
static char *read_file(const char *file, FILE *f)
{
fseek(f, 0, SEEK_END);
/** @todo check how well standardized this actually is */
long s = ftell(f);
if (s == LONG_MAX) {
error("%s might be a directory", file);
return NULL;
}
fseek(f, 0, SEEK_SET);
char *buf = malloc(s + 1);
if (!buf)
return NULL;
fread(buf, s + 1, 1, f);
/* remember terminating null */
buf[s] = 0;
return buf;
}
static void usage(FILE *f)
{
fprintf(f, "qbt <file>.qbt\n");
}
int main(int argc, char *argv[])
{
if (argc != 2) {
usage(stdout);
return -1;
}
char *fname = argv[1];
FILE *f = fopen(fname, "rb");
if (!f) {
fprintf(stderr, "couldn't open %s\n", fname);
return -1;
}
char *buf = read_file(fname, f);
fclose(f);
struct parser *p = create_parser();
parse(p, fname, buf);
foreach_fn(i, p->fns) {
struct fn_map m = fn_at(p->fns, i);
dump_function(m.fn);
// also handles things like register mapping etc.
optimize(m.fn);
dump_function(m.fn);
// for now
output(m.fn, stdout);
}
destroy_parser(p);
free(buf);
}
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