lttng: remove usage strings from commands

[lttng-tools.git] / src / bin / lttng / commands / enable_channels.c

diff --git a/src/bin/lttng/commands/enable_channels.c b/src/bin/lttng/commands/enable_channels.c
index 93d81d7355167a310685f9a75209009e55d9e195..9a990030d5023ff38f0b984f1329f32e5feb849f 100644 (file)
--- a/src/bin/lttng/commands/enable_channels.c
+++ b/src/bin/lttng/commands/enable_channels.c
@@ -88,67 +88,6 @@ static struct poptOption long_options[] = {
        {0, 0, 0, 0, 0, 0, 0}
 };
 
-/*
- * usage
- */
-static void usage(FILE *ofp)
-{
-       fprintf(ofp, "usage: lttng enable-channel NAME[,NAME2,...] (-u | -k) [OPTIONS]\n");
-       fprintf(ofp, "\n");
-       fprintf(ofp, "Options:\n");
-       fprintf(ofp, "  -h, --help               Show this help\n");
-       fprintf(ofp, "      --list-options       Simple listing of options\n");
-       fprintf(ofp, "  -s, --session NAME       Apply to session name\n");
-       fprintf(ofp, "  -k, --kernel             Apply to the kernel tracer\n");
-       fprintf(ofp, "  -u, --userspace          Apply to the user-space tracer\n");
-       fprintf(ofp, "\n");
-       fprintf(ofp, "Channel options:\n");
-       fprintf(ofp, "      --discard            Discard event when buffers are full%s\n",
-               DEFAULT_CHANNEL_OVERWRITE ? "" : " (default)");
-       fprintf(ofp, "      --overwrite          Flight recorder mode%s\n",
-               DEFAULT_CHANNEL_OVERWRITE ? " (default)" : "");
-       fprintf(ofp, "      --subbuf-size SIZE   Subbuffer size in bytes {+k,+M,+G}\n");
-       fprintf(ofp, "                               (default UST uid: %zu, UST pid: %zu, kernel: %zu, metadata: %zu)\n",
-               default_get_ust_uid_channel_subbuf_size(),
-               default_get_ust_pid_channel_subbuf_size(),
-               default_get_kernel_channel_subbuf_size(),
-               default_get_metadata_subbuf_size());
-       fprintf(ofp, "                               Rounded up to the next power of 2.\n");
-       fprintf(ofp, "      --num-subbuf NUM     Number of subbufers\n");
-       fprintf(ofp, "                               (default UST uid: %u, UST pid: %u, kernel: %u, metadata: %u)\n",
-               DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM, DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM,
-               DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM, DEFAULT_METADATA_SUBBUF_NUM);
-       fprintf(ofp, "                               Rounded up to the next power of 2.\n");
-       fprintf(ofp, "      --switch-timer USEC  Switch timer interval in usec\n");
-       fprintf(ofp, "                               (default UST uid: %u, UST pid: %u, kernel: %u, metadata: %u)\n",
-               DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER, DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER,
-               DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER, DEFAULT_METADATA_SWITCH_TIMER);
-       fprintf(ofp, "      --read-timer USEC    Read timer interval in usec.\n");
-       fprintf(ofp, "                               (default UST uid: %u, UST pid: %u, kernel: %u, metadata: %u)\n",
-               DEFAULT_UST_UID_CHANNEL_READ_TIMER, DEFAULT_UST_UID_CHANNEL_READ_TIMER,
-               DEFAULT_KERNEL_CHANNEL_READ_TIMER, DEFAULT_METADATA_READ_TIMER);
-       fprintf(ofp, "      --output TYPE        Channel output type (Values: %s, %s)\n",
-                       output_mmap, output_splice);
-       fprintf(ofp, "                               (default UST uid: %s, UST pid: %s, kernel: %s, metadata: %s)\n",
-                       DEFAULT_UST_UID_CHANNEL_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice,
-                       DEFAULT_UST_PID_CHANNEL_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice,
-                       DEFAULT_KERNEL_CHANNEL_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice,
-                       DEFAULT_METADATA_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice);
-       fprintf(ofp, "      --buffers-uid        Use per UID buffer (-u only)\n");
-       fprintf(ofp, "      --buffers-pid        Use per PID buffer (-u only)\n");
-       fprintf(ofp, "      --buffers-global     Use shared buffer for the whole system (-k only)\n");
-       fprintf(ofp, "  -C, --tracefile-size SIZE\n");
-       fprintf(ofp, "                           Maximum size of each tracefile within a stream (in bytes). 0 means unlimited.\n");
-       fprintf(ofp, "                               (default: %u)\n", DEFAULT_CHANNEL_TRACEFILE_SIZE);
-       fprintf(ofp, "                           Note: traces generated with this option may inaccurately report\n");
-       fprintf(ofp, "                           discarded events as per CTF 1.8.\n");
-       fprintf(ofp, "  -W, --tracefile-count COUNT\n");
-       fprintf(ofp, "                           Used in conjunction with -C option, this will limit the number\n");
-       fprintf(ofp, "                           of files created to the specified count. 0 means unlimited.\n");
-       fprintf(ofp, "                               (default: %u)\n", DEFAULT_CHANNEL_TRACEFILE_COUNT);
-       fprintf(ofp, "\n");
-}
-
 /*
  * Set default attributes depending on those already defined from the command
  * line.
@@ -248,7 +187,6 @@ static int enable_channel(char *session_name)
                } else {
                        ERR("Unknown output type %s. Possible values are: %s, %s\n",
                                        opt_output, output_mmap, output_splice);
-                       usage(stderr);
                        ret = CMD_ERROR;
                        goto error;
                }
@@ -563,7 +501,6 @@ int cmd_enable_channels(int argc, const char **argv)
                        list_cmd_options(stdout, long_options);
                        goto end;
                default:
-                       usage(stderr);
                        ret = CMD_UNDEFINED;
                        goto end;
                }
@@ -603,7 +540,6 @@ int cmd_enable_channels(int argc, const char **argv)
        opt_channels = (char*) poptGetArg(pc);
        if (opt_channels == NULL) {
                ERR("Missing channel name.\n");
-               usage(stderr);
                ret = CMD_ERROR;
                success = 0;
                goto mi_closing;