int
main(int argc, char *argv[])
{
int i;
char *ppfile;
ARGBEGIN{
case 'P':
pprof =1;
ppfile = EARGF(Usage());
pproffd = Bopen(ppfile, OWRITE);
if(pproffd == nil) {
fprint(2, "prof: cannot open %s: %r\n", ppfile);
exit(2);
}
break;
case 'd':
delta_msec = atoi(EARGF(Usage()));
break;
case 't':
total_sec = atoi(EARGF(Usage()));
break;
case 'p':
pid = atoi(EARGF(Usage()));
break;
case 'f':
functions = 1;
break;
case 'h':
histograms = 1;
break;
case 'l':
linenums = 1;
break;
case 'r':
registers = 1;
break;
case 's':
stacks++;
break;
default:
Usage();
}ARGEND
if(pid <= 0 && argc == 0)
Usage();
if(functions+linenums+registers+stacks+pprof == 0)
histograms = 1;
if(!machbyname("amd64")) {
fprint(2, "prof: no amd64 support\n", pid);
exit(1);
}
if(argc > 0)
file = argv[0];
else if(pid) {
file = proctextfile(pid);
if (file == NULL) {
fprint(2, "prof: can't find file for pid %d: %r\n", pid);
fprint(2, "prof: on Darwin, need to provide file name explicitly\n");
exit(1);
}
}
fd = open(file, 0);
if(fd < 0) {
fprint(2, "prof: can't open %s: %r\n", file);
exit(1);
}
if(crackhdr(fd, &fhdr)) {
have_syms = syminit(fd, &fhdr);
if(!have_syms) {
fprint(2, "prof: no symbols for %s: %r\n", file);
}
} else {
fprint(2, "prof: crack header for %s: %r\n", file);
exit(1);
}
if(pid <= 0)
pid = startprocess(argv);
attachproc(pid, &fhdr); // initializes thread list
if(setarch() < 0) {
detach();
fprint(2, "prof: can't identify binary architecture for pid %d\n", pid);
exit(1);
}
if(getthreads() <= 0) {
detach();
fprint(2, "prof: can't find threads for pid %d\n", pid);
exit(1);
}
for(i = 0; i < nthread; i++)
ctlproc(thread[i], "start");
samples();
detach();
dumphistogram();
dumppprof();
exit(0);
}
int
main(int argc, char *argv[])
{
int i;
ARGBEGIN{
case 'd':
delta_msec = atoi(EARGF(Usage()));
break;
case 't':
total_sec = atoi(EARGF(Usage()));
break;
case 'p':
pid = atoi(EARGF(Usage()));
break;
case 'f':
functions = 1;
break;
case 'h':
histograms = 1;
break;
case 'l':
linenums = 1;
break;
case 'r':
registers = 1;
break;
case 's':
stacks++;
break;
}ARGEND
if(pid <= 0 && argc == 0)
Usage();
if(functions+linenums+registers+stacks == 0)
histograms = 1;
if(!machbyname("amd64")) {
fprint(2, "prof: no amd64 support\n", pid);
exit(1);
}
if(argc > 0)
file = argv[0];
else if(pid)
file = proctextfile(pid);
fd = open(file, 0);
if(fd < 0) {
fprint(2, "prof: can't open %s: %r\n", file);
exit(1);
}
if(crackhdr(fd, &fhdr)) {
have_syms = syminit(fd, &fhdr);
if(!have_syms) {
fprint(2, "prof: no symbols for %s: %r\n", file);
}
} else {
fprint(2, "prof: crack header for %s: %r\n", file);
exit(1);
}
if(pid <= 0)
pid = startprocess(argv);
attachproc(pid, &fhdr); // initializes thread list
if(getthreads() <= 0) {
detach();
fprint(2, "prof: can't find threads for pid %d\n", pid);
exit(1);
}
for(i = 0; i < nthread; i++)
ctlproc(thread[i], "start");
samples();
detach();
dumphistogram();
exit(0);
}
