printf(" Set channels root path, For -w option."
" (ex. /mnt/debugfs/ltt)\n");
printf("\n");
+ printf(" Environment variables:\n");
+ printf(" LTT_DAEMON\n");
+ printf(" Complete path to the lttd binary (needs to be\n");
+ printf(" specified if different than package build prefix).\n");
+ printf("\n");
}
/*
}
/*
- * Start a lttd daemon to write trace datas
+ * Start a lttd daemon to write trace data
* Dump overwrite channels on overwrite!=0
* Dump normal(non-overwrite) channels on overwrite=0
*
+ * When called for overwrite mode, wait for lttd to return, so we are sure that
+ * trace session teardown is not executed before lttd can grab the buffer data.
+ *
* ret: 0 on success
* !0 on fail
*/
}
/* -d option */
- argv[argc] = "-d";
- argc++;
+ if (!overwrite) {
+ argv[argc] = "-d";
+ argc++;
+ }
/* overwrite option */
if (overwrite) {