+++ /dev/null
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; only version 2
- * of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#define _GNU_SOURCE
-#include <popt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "cmd.h"
-
-static int opt_pid;
-static int opt_channels;
-
-enum {
- OPT_HELP = 1,
- OPT_EVENTS,
- OPT_KERNEL,
- OPT_APPS,
- OPT_SESSIONS,
- OPT_CHANNEL,
-};
-
-static struct poptOption long_options[] = {
- /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
- {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
- {"events", 'e', POPT_ARG_NONE, 0, OPT_EVENTS, 0, 0},
- {"kernel", 'k', POPT_ARG_NONE, 0, OPT_KERNEL, 0, 0},
- {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
- {"apps", 'a', POPT_ARG_NONE, 0, OPT_APPS, 0, 0},
- {"session", 's', POPT_ARG_NONE, 0, OPT_SESSIONS, 0, 0},
- {"channel", 'c', POPT_ARG_VAL, &opt_channels, 1, 0, 0},
- {0, 0, 0, 0, 0, 0, 0}
-};
-
-/*
- * usage
- */
-static void usage(FILE *ofp)
-{
- fprintf(ofp, "usage: lttng list [options] [<executable>]\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " -h, --help Show this help\n");
- fprintf(ofp, " -e, --events List all available instrumentation\n");
- fprintf(ofp, " -k, --kernel List kernel instrumentation\n");
- fprintf(ofp, " -p, --pid PID List user-space instrumentation by PID\n");
- fprintf(ofp, " -a, --apps List traceable user-space applications/pids\n");
- fprintf(ofp, " -s, --sessions List tracing session\n");
- fprintf(ofp, "\n");
-}
-
-/*
- * get_cmdline_by_pid
- *
- * Get command line from /proc for a specific pid.
- *
- * On success, return an allocated string pointer pointing to the proc
- * cmdline.
- * On error, return NULL.
- */
-static char *get_cmdline_by_pid(pid_t pid)
-{
- int ret;
- FILE *fp;
- char *cmdline = NULL;
- char path[24]; /* Can't go bigger than /proc/65535/cmdline */
-
- snprintf(path, sizeof(path), "/proc/%d/cmdline", pid);
- fp = fopen(path, "r");
- if (fp == NULL) {
- goto end;
- }
-
- /* Caller must free() *cmdline */
- cmdline = malloc(PATH_MAX);
- ret = fread(cmdline, 1, PATH_MAX, fp);
- fclose(fp);
-
-end:
- return cmdline;
-}
-
-/*
- * list_kernel
- *
- * Ask for all trace events in the kernel and pretty print them.
- */
-static int list_kernel(void)
-{
- int ret, pos, size;
- char *event_list, *event, *ptr;
- struct lttng_domain dom;
-
- DBG("Getting all tracing events");
-
- dom.type = LTTNG_DOMAIN_KERNEL;
-
- ret = lttng_list_events(&dom, &event_list);
- if (ret < 0) {
- ERR("Unable to list kernel instrumentation");
- return ret;
- }
-
- MSG("Kernel tracepoints:\n-------------");
-
- ptr = event_list;
- while ((size = sscanf(ptr, "event { name = %m[^;]; };%n\n", &event, &pos)) == 1) {
- MSG(" - %s", event);
- /* Move pointer to the next line */
- ptr += pos + 1;
- free(event);
- }
-
- free(event_list);
-
- return CMD_SUCCESS;
-}
-
-/*
- * list_sessions
- *
- * Get the list of available sessions from the session daemon and print it to
- * user.
- */
-static int list_sessions(void)
-{
- int ret, count, i;
- struct lttng_session *sessions;
-
- count = lttng_list_sessions(&sessions);
- DBG("Session count %d", count);
- if (count < 0) {
- ret = count;
- goto error;
- }
-
- MSG("Available sessions:");
- for (i = 0; i < count; i++) {
- MSG(" %d) %s (%s)", i+1, sessions[i].name, sessions[i].path);
- }
-
- free(sessions);
-
- return CMD_SUCCESS;
-
-error:
- return ret;
-}
-
-/*
- * list_apps
- *
- * Get the UST traceable pid list and print them to the user.
- */
-static int list_apps(void)
-{
- int i, ret, count;
- pid_t *pids;
- char *cmdline;
-
- count = -1;
- //count = lttng_ust_list_traceable_apps(&pids);
- if (count < 0) {
- ret = count;
- goto error;
- }
-
- MSG("LTTng UST traceable application [name (pid)]:");
- for (i=0; i < count; i++) {
- cmdline = get_cmdline_by_pid(pids[i]);
- if (cmdline == NULL) {
- MSG("\t(not running) (%d)", pids[i]);
- continue;
- }
- MSG("\t%s (%d)", cmdline, pids[i]);
- free(cmdline);
- }
-
- /* Allocated by lttng_ust_list_apps() */
- free(pids);
-
- return CMD_SUCCESS;
-
-error:
- return ret;
-}
-
-/*
- * list_pid
- *
- * List all instrumentation for a specific pid
- */
-/*
-static int list_pid(int pid)
-{
- int ret;
-
- return CMD_SUCCESS;
-
-error:
- return ret;
-}
-*/
-
-/*
- * list_executable
- *
- * List all instrumentation for an executable on the system
- */
-/*
-static int list_executable(char *name)
-{
-}
-*/
-
-/*
- * cmd_list
- *
- * The 'list <options>' first level command
- */
-int cmd_list(int argc, const char **argv)
-{
- int opt, ret = CMD_SUCCESS;
- const char *command_name;
- static poptContext pc;
-
- if (argc < 2) {
- usage(stderr);
- goto end;
- }
-
- pc = poptGetContext(NULL, argc, argv, long_options, 0);
- poptReadDefaultConfig(pc, 0);
-
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case OPT_HELP:
- usage(stderr);
- goto end;
- case OPT_EVENTS:
- ret = CMD_NOT_IMPLEMENTED;
- goto end;
- case OPT_APPS:
- ret = list_apps();
- break;
- case OPT_KERNEL:
- ret = list_kernel();
- break;
- case OPT_SESSIONS:
- ret = list_sessions();
- break;
- default:
- usage(stderr);
- ret = CMD_UNDEFINED;
- goto end;
- }
- }
-
- if (opt_pid != 0) {
- //ret = list_pid(pid);
- ret = CMD_NOT_IMPLEMENTED;
- }
-
- command_name = poptGetArg(pc);
- if (command_name != NULL) {
- // ret = list_executable(command_name);
- ret = CMD_NOT_IMPLEMENTED;
- }
-
-end:
- return ret;
-}
projects / lttng-tools.git / blobdiff