void
printpc(Map *map, uvlong pc, uvlong sp)
{
char buf[1024];
if(registers)
regprint();
if(have_syms > 0 && linenums && fileline(buf, sizeof buf, pc))
fprint(2, "%s\n", buf);
if(have_syms > 0 && functions) {
symoff(buf, sizeof(buf), pc, CANY);
fprint(2, "%s\n", buf);
}
if(stacks){
stacktracepcsp(map, pc, sp);
}
else if(histograms){
addtohistogram(pc, 0, sp);
}
}
/*
- main - do the simple case, hand off to regress() for regression
*/
int
main(int argc, char *argv[])
{
regex_t re;
# define NS 10
regmatch_t subs[NS];
char erbuf[100];
int err;
size_t len;
int c;
int errflg = 0;
register int i;
extern int optind;
extern char *optarg;
progname = argv[0];
while ((c = getopt(argc, argv, "c:e:S:E:x")) != -1)
switch (c) {
case 'c': /* compile options */
copts = options('c', optarg);
break;
case 'e': /* execute options */
eopts = options('e', optarg);
break;
case 'S': /* start offset */
startoff = (regoff_t)atoi(optarg);
break;
case 'E': /* end offset */
endoff = (regoff_t)atoi(optarg);
break;
case 'x': /* Debugging. */
debug++;
break;
case '?':
default:
errflg++;
break;
}
if (errflg) {
fprintf(stderr, "usage: %s ", progname);
fprintf(stderr, "[-c copt][-C][-d] [re]\n");
exit(2);
}
if (optind >= argc) {
regress(stdin);
exit(status);
}
err = regcomp(&re, argv[optind++], copts);
if (err) {
len = regerror(err, &re, erbuf, sizeof(erbuf));
fprintf(stderr, "error %s, %zu/%zu `%s'\n",
eprint(err), len, sizeof(erbuf), erbuf);
exit(status);
}
regprint(&re, stdout);
if (optind >= argc) {
regfree(&re);
exit(status);
}
if (eopts®_STARTEND) {
subs[0].rm_so = startoff;
subs[0].rm_eo = strlen(argv[optind]) - endoff;
}
err = regexec(&re, argv[optind], (size_t)NS, subs, eopts);
if (err) {
len = regerror(err, &re, erbuf, sizeof(erbuf));
fprintf(stderr, "error %s, %zu/%zu `%s'\n",
eprint(err), len, sizeof(erbuf), erbuf);
exit(status);
}
if (!(copts®_NOSUB)) {
len = (size_t)(subs[0].rm_eo - subs[0].rm_so);
if (subs[0].rm_so != -1) {
if (len != 0)
printf("match `%.*s'\n", (int)len,
argv[optind] + subs[0].rm_so);
else
printf("match `'@%.1s\n",
argv[optind] + subs[0].rm_so);
}
for (i = 1; i < NS; i++)
if (subs[i].rm_so != -1)
printf("(%d) `%.*s'\n", i,
(int)(subs[i].rm_eo - subs[i].rm_so),
argv[optind] + subs[i].rm_so);
}
exit(status);
}
