X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=lttng%2Fcommands%2Fenable_events.c;fp=lttng%2Fcommands%2Fenable_events.c;h=0000000000000000000000000000000000000000;hp=3c1c3916e0344a48098fe92e4c771201c356f7a0;hb=10a8a2237343699e3923d87e24dbf2d7fe225377;hpb=734f79bf717d87817623d382c59086dc9e8ef610

diff --git a/lttng/commands/enable_events.c b/lttng/commands/enable_events.c
deleted file mode 100644
index 3c1c3916e..000000000
--- a/lttng/commands/enable_events.c
+++ /dev/null
@@ -1,463 +0,0 @@
-/*
- * 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 <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 char *opt_event_list;
-static int opt_event_type;
-static int opt_kernel;
-static char *opt_session_name;
-static int opt_userspace;
-static char *opt_cmd_name;
-static int opt_enable_all;
-static pid_t opt_pid;
-static char *opt_probe;
-static char *opt_function;
-static char *opt_function_entry_symbol;
-static char *opt_channel_name;
-
-enum {
-	OPT_HELP = 1,
-	OPT_TRACEPOINT,
-	OPT_PROBE,
-	OPT_FUNCTION,
-	OPT_FUNCTION_ENTRY,
-	OPT_SYSCALL,
-	OPT_USERSPACE,
-	OPT_TRACEPOINT_LOGLEVEL,
-};
-
-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},
-	{"session",        's', POPT_ARG_STRING, &opt_session_name, 0, 0, 0},
-	{"all",            'a', POPT_ARG_VAL, &opt_enable_all, 1, 0, 0},
-	{"channel",        'c', POPT_ARG_STRING, &opt_channel_name, 0, 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},
-	{"pid",            'p', POPT_ARG_INT, &opt_pid, 0, 0, 0},
-	{"tracepoint",     0,   POPT_ARG_NONE, 0, OPT_TRACEPOINT, 0, 0},
-	{"probe",          0,   POPT_ARG_STRING, &opt_probe, OPT_PROBE, 0, 0},
-	{"function",       0,   POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0},
-#if 0
-	/*
-	 * Currently removed from lttng kernel tracer. Removed from
-	 * lttng UI to discourage its use.
-	 */
-	{"function:entry", 0,   POPT_ARG_STRING, &opt_function_entry_symbol, OPT_FUNCTION_ENTRY, 0, 0},
-#endif
-	{"syscall",        0,   POPT_ARG_NONE, 0, OPT_SYSCALL, 0, 0},
-	{"loglevel",     0,     POPT_ARG_NONE, 0, OPT_TRACEPOINT_LOGLEVEL, 0, 0},
-	{0, 0, 0, 0, 0, 0, 0}
-};
-
-/*
- * usage
- */
-static void usage(FILE *ofp)
-{
-	fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [options] [event_options]\n");
-	fprintf(ofp, "\n");
-	fprintf(ofp, "  -h, --help               Show this help\n");
-	fprintf(ofp, "  -s, --session            Apply on session name\n");
-	fprintf(ofp, "  -c, --channel            Apply on this channel\n");
-	fprintf(ofp, "  -a, --all                Enable all tracepoints\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, "                           If no CMD, the domain used is UST global\n");
-	fprintf(ofp, "                           or else the domain is UST EXEC_NAME\n");
-	fprintf(ofp, "  -p, --pid PID            If -u, apply to specific PID (domain: UST PID)\n");
-	fprintf(ofp, "\n");
-	fprintf(ofp, "Event options:\n");
-	fprintf(ofp, "    --tracepoint           Tracepoint event (default)\n");
-	fprintf(ofp, "                           - userspace tracer supports wildcards at end of string.\n");
-	fprintf(ofp, "                             Don't forget to quote to deal with bash expansion.\n");
-	fprintf(ofp, "                             e.g.:\n");
-	fprintf(ofp, "                               \"*\"\n");
-	fprintf(ofp, "                               \"app_component:na*\"\n");
-	fprintf(ofp, "    --loglevel             Tracepoint loglevel\n");
-	fprintf(ofp, "    --probe [addr | symbol | symbol+offset]\n");
-	fprintf(ofp, "                           Dynamic probe.\n");
-	fprintf(ofp, "                           Addr and offset can be octal (0NNN...),\n");
-	fprintf(ofp, "                           decimal (NNN...) or hexadecimal (0xNNN...)\n");
-	fprintf(ofp, "    --function [addr | symbol | symbol+offset]\n");
-	fprintf(ofp, "                           Dynamic function entry/return probe.\n");
-	fprintf(ofp, "                           Addr and offset can be octal (0NNN...),\n");
-	fprintf(ofp, "                           decimal (NNN...) or hexadecimal (0xNNN...)\n");
-#if 0
-	fprintf(ofp, "    --function:entry symbol\n");
-	fprintf(ofp, "                           Function tracer event\n");
-#endif
-	fprintf(ofp, "    --syscall              System call event\n");
-	fprintf(ofp, "\n");
-}
-
-/*
- * Parse probe options.
- */
-static int parse_probe_opts(struct lttng_event *ev, char *opt)
-{
-	int ret;
-	char s_hex[19];
-	char name[LTTNG_SYMBOL_NAME_LEN];
-
-	if (opt == NULL) {
-		ret = -1;
-		goto end;
-	}
-
-	/* Check for symbol+offset */
-	ret = sscanf(opt, "%[^'+']+%s", name, s_hex);
-	if (ret == 2) {
-		strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN);
-		ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-		DBG("probe symbol %s", ev->attr.probe.symbol_name);
-		if (strlen(s_hex) == 0) {
-			ERR("Invalid probe offset %s", s_hex);
-			ret = -1;
-			goto end;
-		}
-		ev->attr.probe.offset = strtoul(s_hex, NULL, 0);
-		DBG("probe offset %" PRIu64, ev->attr.probe.offset);
-		ev->attr.probe.addr = 0;
-		goto end;
-	}
-
-	/* Check for symbol */
-	if (isalpha(name[0])) {
-		ret = sscanf(opt, "%s", name);
-		if (ret == 1) {
-			strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN);
-			ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-			DBG("probe symbol %s", ev->attr.probe.symbol_name);
-			ev->attr.probe.offset = 0;
-			DBG("probe offset %" PRIu64, ev->attr.probe.offset);
-			ev->attr.probe.addr = 0;
-			goto end;
-		}
-	}
-
-	/* Check for address */
-	ret = sscanf(opt, "%s", s_hex);
-	if (ret > 0) {
-		if (strlen(s_hex) == 0) {
-			ERR("Invalid probe address %s", s_hex);
-			ret = -1;
-			goto end;
-		}
-		ev->attr.probe.addr = strtoul(s_hex, NULL, 0);
-		DBG("probe addr %" PRIu64, ev->attr.probe.addr);
-		ev->attr.probe.offset = 0;
-		memset(ev->attr.probe.symbol_name, 0, LTTNG_SYMBOL_NAME_LEN);
-		goto end;
-	}
-
-	/* No match */
-	ret = -1;
-
-end:
-	return ret;
-}
-
-/*
- * Enabling event using the lttng API.
- */
-static int enable_events(char *session_name)
-{
-	int err, ret = CMD_SUCCESS;
-	char *event_name, *channel_name = NULL;
-	struct lttng_event ev;
-	struct lttng_domain dom;
-
-	if (opt_channel_name == NULL) {
-		err = asprintf(&channel_name, DEFAULT_CHANNEL_NAME);
-		if (err < 0) {
-			ret = CMD_FATAL;
-			goto error;
-		}
-	} else {
-		channel_name = opt_channel_name;
-	}
-
-	if (opt_kernel && opt_userspace) {
-		ERR("Can't use -k/--kernel and -u/--userspace together");
-		ret = CMD_FATAL;
-		goto error;
-	}
-
-	/* Create lttng domain */
-	if (opt_kernel) {
-		dom.type = LTTNG_DOMAIN_KERNEL;
-	} else if (opt_pid != 0) {
-		dom.type = LTTNG_DOMAIN_UST_PID;
-		dom.attr.pid = opt_pid;
-		DBG("PID %d set to lttng handle", opt_pid);
-	} else if (opt_userspace && opt_cmd_name == NULL) {
-		dom.type = LTTNG_DOMAIN_UST;
-	} else if (opt_userspace && opt_cmd_name != NULL) {
-		dom.type = LTTNG_DOMAIN_UST_EXEC_NAME;
-		strncpy(dom.attr.exec_name, opt_cmd_name, NAME_MAX);
-	} else {
-		ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
-		ret = CMD_NOT_IMPLEMENTED;
-		goto error;
-	}
-
-	handle = lttng_create_handle(session_name, &dom);
-	if (handle == NULL) {
-		ret = -1;
-		goto error;
-	}
-
-	if (opt_enable_all) {
-		/* Default setup for enable all */
-
-		if (opt_kernel) {
-			ev.type = opt_event_type;
-			ev.name[0] = '\0';
-		} else {
-			ev.type = LTTNG_EVENT_TRACEPOINT;
-			strcpy(ev.name, "*");
-		}
-
-		ret = lttng_enable_event(handle, &ev, channel_name);
-		if (ret < 0) {
-			goto error;
-		}
-
-		switch (opt_event_type) {
-		case LTTNG_EVENT_TRACEPOINT:
-			MSG("All %s tracepoints are enabled in channel %s",
-				opt_kernel ? "kernel" : "UST", channel_name);
-			break;
-		case LTTNG_EVENT_SYSCALL:
-			if (opt_kernel) {
-				MSG("All kernel system calls are enabled in channel %s",
-						channel_name);
-			}
-			break;
-		case LTTNG_EVENT_ALL:
-			MSG("All %s events are enabled in channel %s",
-				opt_kernel ? "kernel" : "UST", channel_name);
-			break;
-		default:
-			/*
-			 * We should not be here since lttng_enable_event should have
-			 * failed on the event type.
-			 */
-			goto error;
-		}
-		goto end;
-	}
-
-	/* Strip event list */
-	event_name = strtok(opt_event_list, ",");
-	while (event_name != NULL) {
-		/* Copy name and type of the event */
-		strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
-		ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-		ev.type = opt_event_type;
-
-		/* Kernel tracer action */
-		if (opt_kernel) {
-			DBG("Enabling kernel event %s for channel %s",
-					event_name, channel_name);
-
-			switch (opt_event_type) {
-			case LTTNG_EVENT_ALL:	/* Default behavior is tracepoint */
-				ev.type = LTTNG_EVENT_TRACEPOINT;
-				/* Fall-through */
-			case LTTNG_EVENT_TRACEPOINT:
-				break;
-			case LTTNG_EVENT_PROBE:
-				ret = parse_probe_opts(&ev, opt_probe);
-				if (ret < 0) {
-					ERR("Unable to parse probe options");
-					ret = 0;
-					goto error;
-				}
-				break;
-			case LTTNG_EVENT_FUNCTION:
-				ret = parse_probe_opts(&ev, opt_function);
-				if (ret < 0) {
-					ERR("Unable to parse function probe options");
-					ret = 0;
-					goto error;
-				}
-				break;
-			case LTTNG_EVENT_FUNCTION_ENTRY:
-				strncpy(ev.attr.ftrace.symbol_name, opt_function_entry_symbol,
-						LTTNG_SYMBOL_NAME_LEN);
-				ev.attr.ftrace.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-				break;
-			case LTTNG_EVENT_SYSCALL:
-				MSG("per-syscall selection not supported yet. Use \"-a\" "
-						"for all syscalls.");
-			default:
-				ret = CMD_NOT_IMPLEMENTED;
-				goto error;
-			}
-		} else if (opt_userspace) {		/* User-space tracer action */
-			if (opt_cmd_name != NULL || opt_pid) {
-				MSG("Only supporting tracing all UST processes (-u) for now.");
-				ret = CMD_NOT_IMPLEMENTED;
-				goto error;
-			}
-
-			DBG("Enabling UST event %s for channel %s", event_name,
-					channel_name);
-
-			switch (opt_event_type) {
-			case LTTNG_EVENT_ALL:	/* Default behavior is tracepoint */
-				/* Fall-through */
-			case LTTNG_EVENT_TRACEPOINT:
-				/* Copy name and type of the event */
-				ev.type = LTTNG_EVENT_TRACEPOINT;
-				strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
-				ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-				break;
-			case LTTNG_EVENT_TRACEPOINT_LOGLEVEL:
-				/* Copy name and type of the event */
-				ev.type = LTTNG_EVENT_TRACEPOINT_LOGLEVEL;
-				strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
-				ev.name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
-				break;
-			case LTTNG_EVENT_PROBE:
-			case LTTNG_EVENT_FUNCTION:
-			case LTTNG_EVENT_FUNCTION_ENTRY:
-			case LTTNG_EVENT_SYSCALL:
-			default:
-				ret = CMD_NOT_IMPLEMENTED;
-				goto error;
-			}
-		} else {
-			ERR("Please specify a tracer (-k/--kernel or -u/--userspace)");
-			goto error;
-		}
-
-		ret = lttng_enable_event(handle, &ev, channel_name);
-		if (ret == 0) {
-			MSG("%s event %s created in channel %s",
-					opt_kernel ? "kernel": "UST", event_name, channel_name);
-		}
-
-		/* Next event */
-		event_name = strtok(NULL, ",");
-	}
-
-end:
-error:
-	if (opt_channel_name == NULL) {
-		free(channel_name);
-	}
-	lttng_destroy_handle(handle);
-
-	return ret;
-}
-
-/*
- * Add event to trace session
- */
-int cmd_enable_events(int argc, const char **argv)
-{
-	int opt, ret;
-	static poptContext pc;
-	char *session_name = NULL;
-
-	pc = poptGetContext(NULL, argc, argv, long_options, 0);
-	poptReadDefaultConfig(pc, 0);
-
-	/* Default event type */
-	opt_event_type = LTTNG_EVENT_ALL;
-
-	while ((opt = poptGetNextOpt(pc)) != -1) {
-		switch (opt) {
-		case OPT_HELP:
-			usage(stderr);
-			ret = CMD_SUCCESS;
-			goto end;
-		case OPT_TRACEPOINT:
-			opt_event_type = LTTNG_EVENT_TRACEPOINT;
-			break;
-		case OPT_PROBE:
-			opt_event_type = LTTNG_EVENT_PROBE;
-			break;
-		case OPT_FUNCTION:
-			opt_event_type = LTTNG_EVENT_FUNCTION;
-			break;
-		case OPT_FUNCTION_ENTRY:
-			opt_event_type = LTTNG_EVENT_FUNCTION_ENTRY;
-			break;
-		case OPT_SYSCALL:
-			opt_event_type = LTTNG_EVENT_SYSCALL;
-			break;
-		case OPT_USERSPACE:
-			opt_userspace = 1;
-			break;
-		case OPT_TRACEPOINT_LOGLEVEL:
-			opt_event_type = LTTNG_EVENT_TRACEPOINT_LOGLEVEL;
-			break;
-		default:
-			usage(stderr);
-			ret = CMD_UNDEFINED;
-			goto end;
-		}
-	}
-
-	opt_event_list = (char*) poptGetArg(pc);
-	if (opt_event_list == NULL && opt_enable_all == 0) {
-		ERR("Missing event name(s).\n");
-		usage(stderr);
-		ret = CMD_SUCCESS;
-		goto end;
-	}
-
-	if (!opt_session_name) {
-		session_name = get_session_name();
-		if (session_name == NULL) {
-			ret = -1;
-			goto end;
-		}
-	} else {
-		session_name = opt_session_name;
-	}
-
-	ret = enable_events(session_name);
-
-end:
-	if (opt_session_name == NULL) {
-		free(session_name);
-	}
-
-	return ret;
-}