diff options
Diffstat (limited to 'runtime/stpd/stpd.c')
| -rw-r--r-- | runtime/stpd/stpd.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/runtime/stpd/stpd.c b/runtime/stpd/stpd.c index 2fecc380..9587d29f 100644 --- a/runtime/stpd/stpd.c +++ b/runtime/stpd/stpd.c @@ -41,10 +41,14 @@ unsigned int buffer_size = 0; char *modname = NULL; char *modpath = NULL; char *target_cmd = NULL; +char *outfile_name = NULL; /* relayfs base file name */ static char stpd_filebase[1024]; +/* if no output file name is specified, use this */ +#define DEFAULT_OUTFILE_NAME "probe.out" + /* stp_check script */ #ifdef PKGLIBDIR char *stp_check=PKGLIBDIR "/stp_check"; @@ -54,7 +58,7 @@ char *stp_check="stp_check"; static void usage(char *prog) { - fprintf(stderr, "\n%s [-m] [-p] [-q] [-r] [-c cmd ] [-t pid] [-b bufsize] kmod-name\n", prog); + fprintf(stderr, "\n%s [-m] [-p] [-q] [-r] [-c cmd ] [-t pid] [-b bufsize] [-o FILE] kmod-name\n", prog); fprintf(stderr, "-m Don't merge per-cpu files.\n"); fprintf(stderr, "-p Print only. Don't log to files.\n"); fprintf(stderr, "-q Quiet. Don't display trace to stdout.\n"); @@ -63,6 +67,7 @@ static void usage(char *prog) fprintf(stderr, " _stp_target will contain the pid for the command.\n"); fprintf(stderr, "-t pid. Sets _stp_target to pid.\n"); fprintf(stderr, "-b buffer size. The systemtap module will specify a buffer size.\n"); + fprintf(stderr, "-o FILE. Send output to FILE.\n"); fprintf(stderr, " Setting one here will override that value. The value should be\n"); fprintf(stderr, " an integer between 1 and 64 which be assumed to be the\n"); fprintf(stderr, " buffer size in MB. That value will be per-cpu if relayfs is used.\n"); @@ -74,7 +79,7 @@ int main(int argc, char **argv) int c, status; pid_t pid; - while ((c = getopt(argc, argv, "mpqrb:n:t:c:v")) != EOF) + while ((c = getopt(argc, argv, "mpqrb:n:t:c:vo:")) != EOF) { switch (c) { case 'm': @@ -110,6 +115,9 @@ int main(int argc, char **argv) case 'c': target_cmd = optarg; break; + case 'o': + outfile_name = optarg; + break; default: usage(argv[0]); } @@ -160,6 +168,8 @@ int main(int argc, char **argv) fprintf(stderr, "Could not execute %s\n", stp_check); exit(1); } + if (!outfile_name) + outfile_name = DEFAULT_OUTFILE_NAME; } sprintf(stpd_filebase, "/mnt/relay/%d/cpu", getpid()); |