diff options
Diffstat (limited to 'mboxd.c')
| -rw-r--r-- | mboxd.c | 20 |
1 files changed, 18 insertions, 2 deletions
@@ -54,7 +54,8 @@ const char* USAGE = "\t\t\t\t(default: fill the reserved memory region)\n" "\t-w | --window-size\tThe window size (power of 2) in MB\n" "\t\t\t\t(default: 1MB)\n" - "\t-f | --flash\t\tSize of flash in [K|M] bytes\n\n"; + "\t-f | --flash\t\tSize of flash in [K|M] bytes\n\n" + "\t-t | --trace\t\tFile to write trace data to (in blktrace format)\n\n"; static int dbus_init(struct mbox_context *context, const struct transport_ops **ops) @@ -236,6 +237,7 @@ static bool parse_cmdline(int argc, char **argv, { "window-num", optional_argument, 0, 'n' }, { "verbose", no_argument, 0, 'v' }, { "syslog", no_argument, 0, 's' }, + { "trace", optional_argument, 0, 't' }, { "version", no_argument, 0, 'V' }, { "help", no_argument, 0, 'h' }, { 0, 0, 0, 0 } @@ -246,7 +248,7 @@ static bool parse_cmdline(int argc, char **argv, context->current = NULL; /* No current window */ - while ((opt = getopt_long(argc, argv, "f:b:w::n::vsVh", long_options, NULL)) + while ((opt = getopt_long(argc, argv, "f:b:w::n::vst::Vh", long_options, NULL)) != -1) { switch (opt) { case 0: @@ -309,6 +311,17 @@ static bool parse_cmdline(int argc, char **argv, case 'V': printf("%s V%s\n", THIS_NAME, PACKAGE_VERSION); exit(0); + case 't': + context->blktracefd = open(argv[optind], + O_CREAT|O_TRUNC|O_WRONLY, + 0666); + printf("Recording blktrace output to %s\n", + argv[optind]); + if (context->blktracefd == -1) { + perror("Couldn't open blktrace file for writing"); + exit(2); + } + break; case 'h': return false; /* This will print the usage message */ default: @@ -480,6 +493,9 @@ cleanup_protocol: cleanup_backend: backend_free(&context->backend); cleanup_context: + if (context->blktracefd) + close(context->blktracefd); + free(context); return rc; |
