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a couple of usage fixups in prof

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R=rsc
https://golang.org/cl/161050
This commit is contained in:
Rob Pike 2009-12-01 11:35:34 -08:00
parent db18ce2f53
commit 67dc2ae3a6
1 changed files with 7 additions and 1 deletions
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8
src/cmd/prof/main.c
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@ -462,8 +462,14 @@ main(int argc, char *argv[])
}
if(argc > 0)
file = argv[0];
else if(pid)
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);