+++ /dev/null
-/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- * Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * 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 <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <inttypes.h>
-#include <ctype.h>
-
-#include "../cmd.h"
-#include "../conf.h"
-#include "../utils.h"
-
-static int opt_event_type;
-static char *opt_kernel;
-static int opt_pid_all;
-static int opt_userspace;
-static char *opt_cmd_name;
-static pid_t opt_pid;
-
-enum {
- OPT_HELP = 1,
- OPT_TRACEPOINT,
- OPT_MARKER,
- OPT_PROBE,
- OPT_FUNCTION,
- OPT_FUNCTION_ENTRY,
- OPT_SYSCALL,
- OPT_USERSPACE,
-};
-
-static struct lttng_handle *handle;
-
-static struct poptOption long_options[] = {
- /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
- {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0},
- {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0},
- {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0},
- {"all", 0, POPT_ARG_VAL, &opt_pid_all, 1, 0, 0},
- {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
- {"tracepoint", 0, POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0},
- {"marker", 0, POPT_ARG_NONE, 0, OPT_MARKER, 0, 0},
- {"probe", 0, POPT_ARG_NONE, 0, OPT_PROBE, 0, 0},
- {"function", 0, POPT_ARG_NONE, 0, OPT_FUNCTION, 0, 0},
-#if 0
- /*
- * Removed from options to discourage its use. Not in kernel
- * tracer anymore.
- */
- {"function:entry", 0, POPT_ARG_NONE, 0, OPT_FUNCTION_ENTRY, 0, 0},
-#endif
- {"syscall", 0, POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0},
- {0, 0, 0, 0, 0, 0, 0}
-};
-
-/*
- * usage
- */
-static void usage(FILE *ofp)
-{
- fprintf(ofp, "usage: lttng calibrate [options] [calibrate_options]\n");
- fprintf(ofp, "\n");
- fprintf(ofp, " -h, --help Show this help\n");
- fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n");
- fprintf(ofp, " -u, --userspace [CMD] Apply for the user-space tracer\n");
- fprintf(ofp, " --all If -u, apply on all traceable apps\n");
- fprintf(ofp, " -p, --pid PID If -u, apply on a specific PID\n");
- fprintf(ofp, "\n");
- fprintf(ofp, "Calibrate options:\n");
- fprintf(ofp, " --tracepoint Tracepoint event (default)\n");
- fprintf(ofp, " --probe\n");
- fprintf(ofp, " Dynamic probe.\n");
- fprintf(ofp, " --function\n");
- fprintf(ofp, " Dynamic function entry/return probe.\n");
-#if 0
- fprintf(ofp, " --function:entry symbol\n");
- fprintf(ofp, " Function tracer event\n");
-#endif
- fprintf(ofp, " --syscall System call eventl\n");
- fprintf(ofp, " --marker User-space marker (deprecated)\n");
- fprintf(ofp, "\n");
-}
-
-/*
- * calibrate_lttng
- *
- * Calibrate LTTng.
- */
-static int calibrate_lttng(void)
-{
- int ret = CMD_SUCCESS;
- struct lttng_domain dom;
- struct lttng_calibrate calibrate;
-
- /* Create lttng domain */
- if (opt_kernel) {
- dom.type = LTTNG_DOMAIN_KERNEL;
- }
-
- handle = lttng_create_handle(NULL, &dom);
- if (handle == NULL) {
- ret = -1;
- goto end;
- }
-
- /* Kernel tracer action */
- if (opt_kernel) {
- switch (opt_event_type) {
- case LTTNG_EVENT_TRACEPOINT:
- DBG("Calibrating kernel tracepoints");
- break;
- case LTTNG_EVENT_PROBE:
- DBG("Calibrating kernel probes");
- break;
- case LTTNG_EVENT_FUNCTION:
- DBG("Calibrating kernel functions");
- calibrate.type = LTTNG_CALIBRATE_FUNCTION;
- ret = lttng_calibrate(handle, &calibrate);
- break;
- case LTTNG_EVENT_FUNCTION_ENTRY:
- DBG("Calibrating kernel function entry");
- break;
- case LTTNG_EVENT_SYSCALL:
- DBG("Calibrating kernel syscall");
- break;
- default:
- ret = CMD_NOT_IMPLEMENTED;
- goto end;
- }
- } else if (opt_userspace) { /* User-space tracer action */
- /*
- * TODO: Waiting on lttng UST 2.0
- */
- if (opt_pid_all) {
- } else if (opt_pid != 0) {
- }
- ret = CMD_NOT_IMPLEMENTED;
- goto end;
- } else {
- ERR("Please specify a tracer (--kernel or --userspace)");
- goto end;
- }
-end:
- lttng_destroy_handle(handle);
-
- return ret;
-}
-
-/*
- * cmd_calibrate
- *
- * Calibrate LTTng tracer.
- */
-int cmd_calibrate(int argc, const char **argv)
-{
- int opt, ret;
- static poptContext pc;
-
- pc = poptGetContext(NULL, argc, argv, long_options, 0);
- poptReadDefaultConfig(pc, 0);
-
- /* Default event type */
- opt_event_type = LTTNG_EVENT_TRACEPOINT;
-
- while ((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case OPT_HELP:
- usage(stderr);
- ret = CMD_SUCCESS;
- goto end;
- case OPT_TRACEPOINT:
- ret = CMD_NOT_IMPLEMENTED;
- break;
- case OPT_MARKER:
- ret = CMD_NOT_IMPLEMENTED;
- goto end;
- case OPT_PROBE:
- ret = CMD_NOT_IMPLEMENTED;
- break;
- case OPT_FUNCTION:
- opt_event_type = LTTNG_EVENT_FUNCTION;
- break;
- case OPT_FUNCTION_ENTRY:
- ret = CMD_NOT_IMPLEMENTED;
- break;
- case OPT_SYSCALL:
- ret = CMD_NOT_IMPLEMENTED;
- break;
- case OPT_USERSPACE:
- opt_userspace = 1;
- break;
- default:
- usage(stderr);
- ret = CMD_UNDEFINED;
- goto end;
- }
- }
-
- ret = calibrate_lttng();
-
-end:
- return ret;
-}
projects / lttng-tools.git / blobdiff