*/
#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <assert.h>
#include <popt.h>
#include <stdio.h>
#include <inttypes.h>
#include <ctype.h>
-#include "../command.h"
#include <src/common/sessiond-comm/sessiond-comm.h>
+/* Mi dependancy */
+#include <common/mi-lttng.h>
+
+#include "../command.h"
+
#if (LTTNG_SYMBOL_NAME_LEN == 256)
#define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255"
#endif
static char *opt_session_name;
static int opt_userspace;
static int opt_jul;
+static int opt_log4j;
+static int opt_python;
static int opt_enable_all;
static char *opt_probe;
static char *opt_function;
-static char *opt_function_entry_symbol;
static char *opt_channel_name;
static char *opt_filter;
static char *opt_exclude;
-#if 0
-/* Not implemented yet */
-static char *opt_cmd_name;
-static pid_t opt_pid;
-#endif
enum {
OPT_HELP = 1,
OPT_TRACEPOINT,
OPT_PROBE,
OPT_FUNCTION,
- OPT_FUNCTION_ENTRY,
OPT_SYSCALL,
OPT_USERSPACE,
OPT_LOGLEVEL,
};
static struct lttng_handle *handle;
+static struct mi_writer *writer;
static struct poptOption long_options[] = {
/* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
{"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0},
{"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0},
{"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0},
+ {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0},
+ {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 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_STRING, 0, OPT_LOGLEVEL, 0, 0},
{"loglevel-only", 0, POPT_ARG_STRING, 0, OPT_LOGLEVEL_ONLY, 0, 0},
*/
static void usage(FILE *ofp)
{
- fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] [-k|-u] [OPTIONS] \n");
+ fprintf(ofp, "usage: lttng enable-event NAME[,NAME2,...] (-k | -u | -j | -l | -p) [OPTIONS] \n");
fprintf(ofp, "\n");
fprintf(ofp, "Options:\n");
fprintf(ofp, " -h, --help Show this help\n");
fprintf(ofp, " -k, --kernel Apply for the kernel tracer\n");
fprintf(ofp, " -u, --userspace Apply to the user-space tracer\n");
fprintf(ofp, " -j, --jul Apply for Java application using JUL\n");
+ fprintf(ofp, " -l, --log4j Apply for Java application using LOG4j\n");
+ fprintf(ofp, " -p, --python Apply for Python application\n");
fprintf(ofp, "\n");
fprintf(ofp, "Event options:\n");
fprintf(ofp, " --tracepoint Tracepoint event (default)\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");
fprintf(ofp, " --loglevel name\n");
fprintf(ofp, " Tracepoint loglevel range from 0 to loglevel.\n");
- fprintf(ofp, " For JUL domain, see the table below for the range values.\n");
+ fprintf(ofp, " For JUL/LOG4j domain, see the table below for the range values.\n");
fprintf(ofp, " --loglevel-only name\n");
fprintf(ofp, " Tracepoint loglevel (only this loglevel)\n");
fprintf(ofp, "\n");
fprintf(ofp, " JUL_ALL = INT32_MIN\n");
fprintf(ofp, " (shortcuts such as \"severe\" are allowed)\n");
fprintf(ofp, "\n");
+ fprintf(ofp, " Available LOG4j domain loglevels:\n");
+ fprintf(ofp, " LOG4J_OFF = INT32_MAX\n");
+ fprintf(ofp, " LOG4J_FATAL = %d\n", LTTNG_LOGLEVEL_LOG4J_FATAL);
+ fprintf(ofp, " LOG4J_ERROR = %d\n", LTTNG_LOGLEVEL_LOG4J_ERROR);
+ fprintf(ofp, " LOG4J_WARN = %d\n", LTTNG_LOGLEVEL_LOG4J_WARN);
+ fprintf(ofp, " LOG4J_INFO = %d\n", LTTNG_LOGLEVEL_LOG4J_INFO);
+ fprintf(ofp, " LOG4J_DEBUG = %d\n", LTTNG_LOGLEVEL_LOG4J_DEBUG);
+ fprintf(ofp, " LOG4J_TRACE = %d\n", LTTNG_LOGLEVEL_LOG4J_TRACE);
+ fprintf(ofp, " LOG4J_ALL = INT32_MIN\n");
+ fprintf(ofp, " (shortcuts such as \"severe\" are allowed)\n");
+ fprintf(ofp, "\n");
+ fprintf(ofp, " Available Python domain loglevels:\n");
+ fprintf(ofp, " PYTHON_CRITICAL = %d\n", LTTNG_LOGLEVEL_PYTHON_CRITICAL);
+ fprintf(ofp, " PYTHON_ERROR = %d\n", LTTNG_LOGLEVEL_PYTHON_ERROR);
+ fprintf(ofp, " PYTHON_WARNING = %d\n", LTTNG_LOGLEVEL_PYTHON_WARNING);
+ fprintf(ofp, " PYTHON_INFO = %d\n", LTTNG_LOGLEVEL_PYTHON_INFO);
+ fprintf(ofp, " PYTHON_DEBUG = %d\n", LTTNG_LOGLEVEL_PYTHON_DEBUG);
+ fprintf(ofp, " PYTHON_NOTSET = %d\n", LTTNG_LOGLEVEL_PYTHON_NOTSET);
+ fprintf(ofp, " (shortcuts such as \"critical\" are allowed)\n");
+ fprintf(ofp, "\n");
fprintf(ofp, " -f, --filter \'expression\'\n");
fprintf(ofp, " Filter expression on event fields and context.\n");
fprintf(ofp, " Event recording depends on evaluation.\n");
*/
static int parse_probe_opts(struct lttng_event *ev, char *opt)
{
- int ret;
+ int ret = CMD_SUCCESS;
+ int match;
char s_hex[19];
#define S_HEX_LEN_SCANF_IS_A_BROKEN_API "18" /* 18 is (19 - 1) (\0 is extra) */
char name[LTTNG_SYMBOL_NAME_LEN];
if (opt == NULL) {
- ret = -1;
+ ret = CMD_ERROR;
goto end;
}
/* Check for symbol+offset */
- ret = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API
+ match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API
"[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex);
- if (ret == 2) {
+ if (match == 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 (*s_hex == '\0') {
ERR("Invalid probe offset %s", s_hex);
- ret = -1;
+ ret = CMD_ERROR;
goto end;
}
ev->attr.probe.offset = strtoul(s_hex, NULL, 0);
/* Check for symbol */
if (isalpha(name[0])) {
- ret = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s",
+ match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s",
name);
- if (ret == 1) {
+ if (match == 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);
}
/* Check for address */
- ret = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex);
- if (ret > 0) {
+ match = sscanf(opt, "%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", s_hex);
+ if (match > 0) {
if (*s_hex == '\0') {
ERR("Invalid probe address %s", s_hex);
- ret = -1;
+ ret = CMD_ERROR;
goto end;
}
ev->attr.probe.addr = strtoul(s_hex, NULL, 0);
}
/* No match */
- ret = -1;
+ ret = CMD_ERROR;
end:
return ret;
}
+/*
+ * Maps LOG4j loglevel from string to value
+ */
+static int loglevel_log4j_str_to_value(const char *inputstr)
+{
+ int i = 0;
+ char str[LTTNG_SYMBOL_NAME_LEN];
+
+ if (!inputstr || strlen(inputstr) == 0) {
+ return -1;
+ }
+
+ /*
+ * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
+ * added at the end of the loop so a the upper bound we avoid the overflow.
+ */
+ while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') {
+ str[i] = toupper(inputstr[i]);
+ i++;
+ }
+ str[i] = '\0';
+
+ if (!strcmp(str, "LOG4J_OFF") || !strcmp(str, "OFF")) {
+ return LTTNG_LOGLEVEL_LOG4J_OFF;
+ } else if (!strcmp(str, "LOG4J_FATAL") || !strcmp(str, "FATAL")) {
+ return LTTNG_LOGLEVEL_LOG4J_FATAL;
+ } else if (!strcmp(str, "LOG4J_ERROR") || !strcmp(str, "ERROR")) {
+ return LTTNG_LOGLEVEL_LOG4J_ERROR;
+ } else if (!strcmp(str, "LOG4J_WARN") || !strcmp(str, "WARN")) {
+ return LTTNG_LOGLEVEL_LOG4J_WARN;
+ } else if (!strcmp(str, "LOG4J_INFO") || !strcmp(str, "INFO")) {
+ return LTTNG_LOGLEVEL_LOG4J_INFO;
+ } else if (!strcmp(str, "LOG4J_DEBUG") || !strcmp(str, "DEBUG")) {
+ return LTTNG_LOGLEVEL_LOG4J_DEBUG;
+ } else if (!strcmp(str, "LOG4J_TRACE") || !strcmp(str, "TRACE")) {
+ return LTTNG_LOGLEVEL_LOG4J_TRACE;
+ } else if (!strcmp(str, "LOG4J_ALL") || !strcmp(str, "ALL")) {
+ return LTTNG_LOGLEVEL_LOG4J_ALL;
+ } else {
+ return -1;
+ }
+}
+
/*
* Maps JUL loglevel from string to value
*/
int i = 0;
char str[LTTNG_SYMBOL_NAME_LEN];
+ if (!inputstr || strlen(inputstr) == 0) {
+ return -1;
+ }
+
/*
* Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
* added at the end of the loop so a the upper bound we avoid the overflow.
}
}
+/*
+ * Maps Python loglevel from string to value
+ */
+static int loglevel_python_str_to_value(const char *inputstr)
+{
+ int i = 0;
+ char str[LTTNG_SYMBOL_NAME_LEN];
+
+ if (!inputstr || strlen(inputstr) == 0) {
+ return -1;
+ }
+
+ /*
+ * Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
+ * added at the end of the loop so a the upper bound we avoid the overflow.
+ */
+ while (i < (LTTNG_SYMBOL_NAME_LEN - 1) && inputstr[i] != '\0') {
+ str[i] = toupper(inputstr[i]);
+ i++;
+ }
+ str[i] = '\0';
+
+ if (!strcmp(str, "PYTHON_CRITICAL") || !strcmp(str, "CRITICAL")) {
+ return LTTNG_LOGLEVEL_PYTHON_CRITICAL;
+ } else if (!strcmp(str, "PYTHON_ERROR") || !strcmp(str, "ERROR")) {
+ return LTTNG_LOGLEVEL_PYTHON_ERROR;
+ } else if (!strcmp(str, "PYTHON_WARNING") || !strcmp(str, "WARNING")) {
+ return LTTNG_LOGLEVEL_PYTHON_WARNING;
+ } else if (!strcmp(str, "PYTHON_INFO") || !strcmp(str, "INFO")) {
+ return LTTNG_LOGLEVEL_PYTHON_INFO;
+ } else if (!strcmp(str, "PYTNON_DEBUG") || !strcmp(str, "DEBUG")) {
+ return LTTNG_LOGLEVEL_PYTHON_DEBUG;
+ } else if (!strcmp(str, "PYTHON_NOTSET") || !strcmp(str, "NOTSET")) {
+ return LTTNG_LOGLEVEL_PYTHON_NOTSET;
+ } else {
+ return -1;
+ }
+}
+
/*
* Maps loglevel from string to value
*/
int i = 0;
char str[LTTNG_SYMBOL_NAME_LEN];
+ if (!inputstr || strlen(inputstr) == 0) {
+ return -1;
+ }
+
/*
* Loop up to LTTNG_SYMBOL_NAME_LEN minus one because the NULL bytes is
* added at the end of the loop so a the upper bound we avoid the overflow.
return name ? : "<default>";
}
+/*
+ * Mi print exlcusion list
+ */
+static
+int mi_print_exclusion(int count, char **names)
+{
+ int i, ret;
+
+ assert(writer);
+
+ if (count == 0) {
+ ret = 0;
+ goto end;
+ }
+ ret = mi_lttng_writer_open_element(writer, config_element_exclusions);
+ if (ret) {
+ goto end;
+ }
+
+ for (i = 0; i < count; i++) {
+ ret = mi_lttng_writer_write_element_string(writer,
+ config_element_exclusion, names[i]);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ /* Close exclusions element */
+ ret = mi_lttng_writer_close_element(writer);
+
+end:
+ return ret;
+}
+
/*
* Return allocated string for pretty-printing exclusion names.
*/
/* add length of preamble + one for NUL - one for last (missing) comma */
length += strlen(preamble);
- ret = malloc(length);
+ ret = zmalloc(length);
+ if (!ret) {
+ return NULL;
+ }
strncpy(ret, preamble, length);
for (i = 0; i < count; i++) {
strcat(ret, names[i]);
strcat(ret, ",");
}
}
+
return ret;
}
goto error;
}
if (e == '*') {
+ char *string;
+ char **new_exclusion_list;
+
/* Excluder is a proper subset of event */
+ string = strndup(next_excluder, excluder_length);
+ if (!string) {
+ PERROR("strndup error");
+ goto error;
+ }
+ new_exclusion_list = realloc(exclusion_list,
+ sizeof(char *) * (exclusion_count + 1));
+ if (!new_exclusion_list) {
+ PERROR("realloc");
+ free(string);
+ goto error;
+ }
+ exclusion_list = new_exclusion_list;
exclusion_count++;
- exclusion_list = realloc(exclusion_list, sizeof(char **) * exclusion_count);
- exclusion_list[exclusion_count - 1] = strndup(next_excluder, excluder_length);
-
+ exclusion_list[exclusion_count - 1] = string;
break;
}
if (x != e) {
}
/*
* Enabling event using the lttng API.
+ * Note: in case of error only the last error code will be return.
*/
static int enable_events(char *session_name)
{
- int ret = CMD_SUCCESS, warn = 0;
+ int ret = CMD_SUCCESS, command_ret = CMD_SUCCESS;
+ int error_holder = CMD_SUCCESS, warn = 0, error = 0, success = 1;
char *event_name, *channel_name = NULL;
struct lttng_event ev;
struct lttng_domain dom;
memset(&dom, 0, sizeof(dom));
if (opt_kernel) {
- if (opt_filter) {
- ERR("Filter not implement for kernel tracing yet");
- ret = CMD_ERROR;
- goto error;
- }
if (opt_loglevel) {
WARN("Kernel loglevels are not supported.");
}
dom.type = LTTNG_DOMAIN_JUL;
/* Default. */
dom.buf_type = LTTNG_BUFFER_PER_UID;
+ } else if (opt_log4j) {
+ dom.type = LTTNG_DOMAIN_LOG4J;
+ /* Default. */
+ dom.buf_type = LTTNG_BUFFER_PER_UID;
+ } else if (opt_python) {
+ dom.type = LTTNG_DOMAIN_PYTHON;
+ /* Default. */
+ dom.buf_type = LTTNG_BUFFER_PER_UID;
} else {
print_missing_domain();
ret = CMD_ERROR;
goto error;
}
+ /* Prepare Mi */
+ if (lttng_opt_mi) {
+ /* Open a events element */
+ ret = mi_lttng_writer_open_element(writer, config_element_events);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+ }
+
if (opt_enable_all) {
/* Default setup for enable all */
if (opt_kernel) {
ev.type = opt_event_type;
- ev.name[0] = '\0';
+ strcpy(ev.name, "*");
/* kernel loglevels not implemented */
ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
} else {
strcpy(ev.name, "*");
ev.loglevel_type = opt_loglevel_type;
if (opt_loglevel) {
- assert(opt_userspace || opt_jul);
+ assert(opt_userspace || opt_jul || opt_log4j || opt_python);
if (opt_userspace) {
ev.loglevel = loglevel_str_to_value(opt_loglevel);
} else if (opt_jul) {
ev.loglevel = loglevel_jul_str_to_value(opt_loglevel);
+ } else if (opt_log4j) {
+ ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel);
+ } else if (opt_python) {
+ ev.loglevel = loglevel_python_str_to_value(opt_loglevel);
}
if (ev.loglevel == -1) {
ERR("Unknown loglevel %s", opt_loglevel);
goto error;
}
} else {
- assert(opt_userspace || opt_jul);
+ assert(opt_userspace || opt_jul || opt_log4j || opt_python);
if (opt_userspace) {
ev.loglevel = -1;
- } else if (opt_jul) {
+ } else if (opt_jul || opt_log4j) {
ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL;
+ } else if (opt_python) {
+ ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG;
}
}
}
if (ret == CMD_ERROR) {
goto error;
}
+ ev.exclusion = 1;
}
if (!opt_filter) {
ret = lttng_enable_event_with_exclusions(handle,
case LTTNG_ERR_KERN_EVENT_EXIST:
WARN("Kernel events already enabled (channel %s, session %s)",
print_channel_name(channel_name), session_name);
+ warn = 1;
break;
+ case LTTNG_ERR_TRACE_ALREADY_STARTED:
+ {
+ const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
+ ERR("Events: %s (channel %s, session %s)",
+ msg,
+ print_channel_name(channel_name),
+ session_name);
+ error = 1;
+ break;
+ }
default:
ERR("Events: %s (channel %s, session %s)",
lttng_strerror(ret),
? print_raw_channel_name(channel_name)
: print_channel_name(channel_name),
session_name);
+ error = 1;
break;
}
goto end;
case LTTNG_EVENT_TRACEPOINT:
if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) {
char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
+
+ if (!exclusion_string) {
+ PERROR("Cannot allocate exclusion_string");
+ error = 1;
+ goto end;
+ }
MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s",
get_domain_str(dom.type),
exclusion_string,
free(exclusion_string);
} else {
char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
+
+ if (!exclusion_string) {
+ PERROR("Cannot allocate exclusion_string");
+ error = 1;
+ goto end;
+ }
MSG("All %s tracepoints%s are enabled in channel %s",
get_domain_str(dom.type),
exclusion_string,
break;
case LTTNG_EVENT_SYSCALL:
if (opt_kernel) {
- MSG("All kernel system calls are enabled in channel %s",
+ MSG("All %s system calls are enabled in channel %s",
+ get_domain_str(dom.type),
print_channel_name(channel_name));
}
break;
case LTTNG_EVENT_ALL:
if (opt_loglevel && dom.type != LTTNG_DOMAIN_KERNEL) {
char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
+
+ if (!exclusion_string) {
+ PERROR("Cannot allocate exclusion_string");
+ error = 1;
+ goto end;
+ }
MSG("All %s events%s are enabled in channel %s for loglevel %s",
get_domain_str(dom.type),
exclusion_string,
free(exclusion_string);
} else {
char *exclusion_string = print_exclusions(exclusion_count, exclusion_list);
+
+ if (!exclusion_string) {
+ PERROR("Cannot allocate exclusion_string");
+ error = 1;
+ goto end;
+ }
MSG("All %s events%s are enabled in channel %s",
get_domain_str(dom.type),
exclusion_string,
goto error;
}
}
+
if (opt_filter) {
- ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name,
+ command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name,
opt_filter, exclusion_count, exclusion_list);
- if (ret < 0) {
- switch (-ret) {
+ if (command_ret < 0) {
+ switch (-command_ret) {
case LTTNG_ERR_FILTER_EXIST:
WARN("Filter on all events is already enabled"
" (channel %s, session %s)",
print_channel_name(channel_name), session_name);
+ warn = 1;
break;
+ case LTTNG_ERR_TRACE_ALREADY_STARTED:
+ {
+ const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
+ ERR("All events: %s (channel %s, session %s, filter \'%s\')",
+ msg,
+ print_channel_name(channel_name),
+ session_name, opt_filter);
+ error = 1;
+ break;
+ }
default:
ERR("All events: %s (channel %s, session %s, filter \'%s\')",
- lttng_strerror(ret),
- ret == -LTTNG_ERR_NEED_CHANNEL_NAME
+ lttng_strerror(command_ret),
+ command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
? print_raw_channel_name(channel_name)
: print_channel_name(channel_name),
session_name, opt_filter);
+ error = 1;
break;
}
- goto error;
+ error_holder = command_ret;
} else {
+ ev.filter = 1;
MSG("Filter '%s' successfully set", opt_filter);
}
}
+
+ if (lttng_opt_mi) {
+ /* The wildcard * is used for kernel and ust domain to
+ * represent ALL. We copy * in event name to force the wildcard use
+ * for kernel domain
+ *
+ * Note: this is strictly for semantic and printing while in
+ * machine interface mode.
+ */
+ strcpy(ev.name, "*");
+
+ /* If we reach here the events are enabled */
+ if (!error && !warn) {
+ ev.enabled = 1;
+ } else {
+ ev.enabled = 0;
+ success = 0;
+ }
+ ret = mi_lttng_event(writer, &ev, 1, handle->domain.type);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+
+ /* print exclusion */
+ ret = mi_print_exclusion(exclusion_count, exclusion_list);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+
+ /* Success ? */
+ ret = mi_lttng_writer_write_element_bool(writer,
+ mi_lttng_element_command_success, success);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+
+ /* Close event element */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+ }
+
goto end;
}
print_channel_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_ALL: /* Enable tracepoints and syscalls */
+ /* If event name differs from *, select tracepoint. */
+ if (strcmp(ev.name, "*")) {
+ ev.type = LTTNG_EVENT_TRACEPOINT;
+ }
+ break;
case LTTNG_EVENT_TRACEPOINT:
break;
case LTTNG_EVENT_PROBE:
ret = parse_probe_opts(&ev, opt_probe);
- if (ret < 0) {
+ if (ret) {
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) {
+ if (ret) {
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.");
+ ev.type = LTTNG_EVENT_SYSCALL;
+ break;
default:
ret = CMD_UNDEFINED;
goto error;
/* kernel loglevels not implemented */
ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
} else if (opt_userspace) { /* User-space tracer action */
-#if 0
- if (opt_cmd_name != NULL || opt_pid) {
- MSG("Only supporting tracing all UST processes (-u) for now.");
- ret = CMD_UNDEFINED;
- goto error;
- }
-#endif
-
DBG("Enabling UST event %s for channel %s, loglevel %s", event_name,
print_channel_name(channel_name), opt_loglevel ? : "<all>");
break;
case LTTNG_EVENT_PROBE:
case LTTNG_EVENT_FUNCTION:
- case LTTNG_EVENT_FUNCTION_ENTRY:
case LTTNG_EVENT_SYSCALL:
default:
ERR("Event type not available for user-space tracing");
}
if (opt_exclude) {
+ ev.exclusion = 1;
if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) {
ERR("Exclusion option can only be used with tracepoint events");
ret = CMD_ERROR;
} else {
ev.loglevel = -1;
}
- } else if (opt_jul) {
+ } else if (opt_jul || opt_log4j || opt_python) {
if (opt_event_type != LTTNG_EVENT_ALL &&
opt_event_type != LTTNG_EVENT_TRACEPOINT) {
- ERR("Event type not supported for JUL domain.");
+ ERR("Event type not supported for domain.");
ret = CMD_UNSUPPORTED;
goto error;
}
ev.loglevel_type = opt_loglevel_type;
if (opt_loglevel) {
- ev.loglevel = loglevel_jul_str_to_value(opt_loglevel);
+ if (opt_jul) {
+ ev.loglevel = loglevel_jul_str_to_value(opt_loglevel);
+ } else if (opt_log4j) {
+ ev.loglevel = loglevel_log4j_str_to_value(opt_loglevel);
+ } else if (opt_python) {
+ ev.loglevel = loglevel_python_str_to_value(opt_loglevel);
+ }
if (ev.loglevel == -1) {
ERR("Unknown loglevel %s", opt_loglevel);
ret = -LTTNG_ERR_INVALID;
goto error;
}
} else {
- ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL;
+ if (opt_jul) {
+ ev.loglevel = LTTNG_LOGLEVEL_JUL_ALL;
+ } else if (opt_log4j) {
+ ev.loglevel = LTTNG_LOGLEVEL_LOG4J_ALL;
+ } else if (opt_python) {
+ ev.loglevel = LTTNG_LOGLEVEL_PYTHON_DEBUG;
+ }
}
ev.type = LTTNG_EVENT_TRACEPOINT;
strncpy(ev.name, event_name, LTTNG_SYMBOL_NAME_LEN);
if (!opt_filter) {
char *exclusion_string;
- ret = lttng_enable_event_with_exclusions(handle,
+ command_ret = lttng_enable_event_with_exclusions(handle,
&ev, channel_name,
NULL, exclusion_count, exclusion_list);
exclusion_string = print_exclusions(exclusion_count, exclusion_list);
- if (ret < 0) {
+ if (!exclusion_string) {
+ PERROR("Cannot allocate exclusion_string");
+ error = 1;
+ goto end;
+ }
+ if (command_ret < 0) {
/* Turn ret to positive value to handle the positive error code */
- switch (-ret) {
+ switch (-command_ret) {
case LTTNG_ERR_KERN_EVENT_EXIST:
WARN("Kernel event %s%s already enabled (channel %s, session %s)",
event_name,
exclusion_string,
print_channel_name(channel_name), session_name);
+ warn = 1;
break;
+ case LTTNG_ERR_TRACE_ALREADY_STARTED:
+ {
+ const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
+ ERR("Event %s%s: %s (channel %s, session %s)", event_name,
+ exclusion_string,
+ msg,
+ print_channel_name(channel_name),
+ session_name);
+ error = 1;
+ break;
+ }
default:
ERR("Event %s%s: %s (channel %s, session %s)", event_name,
exclusion_string,
- lttng_strerror(ret),
- ret == -LTTNG_ERR_NEED_CHANNEL_NAME
+ lttng_strerror(command_ret),
+ command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
? print_raw_channel_name(channel_name)
: print_channel_name(channel_name),
session_name);
+ error = 1;
break;
}
- warn = 1;
+ error_holder = command_ret;
} else {
- /* So we don't print the default channel name for JUL. */
- if (dom.type == LTTNG_DOMAIN_JUL) {
+ /* So we don't print the default channel name for agent domain. */
+ if (dom.type == LTTNG_DOMAIN_JUL ||
+ dom.type == LTTNG_DOMAIN_LOG4J) {
MSG("%s event %s%s enabled.",
get_domain_str(dom.type), event_name,
exclusion_string);
if (opt_filter) {
char *exclusion_string;
- ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name,
+ /* Filter present */
+ ev.filter = 1;
+
+ command_ret = lttng_enable_event_with_exclusions(handle, &ev, channel_name,
opt_filter, exclusion_count, exclusion_list);
exclusion_string = print_exclusions(exclusion_count, exclusion_list);
-
- if (ret < 0) {
- switch (-ret) {
+ if (!exclusion_string) {
+ PERROR("Cannot allocate exclusion_string");
+ error = 1;
+ goto end;
+ }
+ if (command_ret < 0) {
+ switch (-command_ret) {
case LTTNG_ERR_FILTER_EXIST:
WARN("Filter on event %s%s is already enabled"
" (channel %s, session %s)",
event_name,
exclusion_string,
print_channel_name(channel_name), session_name);
+ warn = 1;
+ break;
+ case LTTNG_ERR_TRACE_ALREADY_STARTED:
+ {
+ const char *msg = "The command tried to enable an event in a new domain for a session that has already been started once.";
+ ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name,
+ exclusion_string,
+ msg,
+ print_channel_name(channel_name),
+ session_name, opt_filter);
+ error = 1;
break;
+ }
default:
ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')", ev.name,
exclusion_string,
- lttng_strerror(ret),
- ret == -LTTNG_ERR_NEED_CHANNEL_NAME
+ lttng_strerror(command_ret),
+ command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
? print_raw_channel_name(channel_name)
: print_channel_name(channel_name),
session_name, opt_filter);
+ error = 1;
break;
}
- free(exclusion_string);
- goto error;
+ error_holder = command_ret;
+
} else {
MSG("Event %s%s: Filter '%s' successfully set",
event_name, exclusion_string,
free(exclusion_string);
}
+ if (lttng_opt_mi) {
+ if (command_ret) {
+ success = 0;
+ ev.enabled = 0;
+ } else {
+ ev.enabled = 1;
+ }
+
+ ret = mi_lttng_event(writer, &ev, 1, handle->domain.type);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+
+ /* print exclusion */
+ ret = mi_print_exclusion(exclusion_count, exclusion_list);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+
+ /* Success ? */
+ ret = mi_lttng_writer_write_element_bool(writer,
+ mi_lttng_element_command_success, success);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Close event element */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
/* Next event */
event_name = strtok(NULL, ",");
+ /* Reset warn, error and success */
+ success = 1;
}
end:
+ /* Close Mi */
+ if (lttng_opt_mi) {
+ /* Close events element */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+ }
error:
if (warn) {
ret = CMD_WARNING;
}
+ if (error) {
+ ret = CMD_ERROR;
+ }
lttng_destroy_handle(handle);
if (exclusion_list != NULL) {
free(exclusion_list);
}
+ /* Overwrite ret with error_holder if there was an actual error with
+ * enabling an event.
+ */
+ ret = error_holder ? error_holder : ret;
+
return ret;
}
*/
int cmd_enable_events(int argc, const char **argv)
{
- int opt, ret = CMD_SUCCESS;
+ int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1;
static poptContext pc;
char *session_name = NULL;
int event_type = -1;
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;
}
}
+ /* Mi check */
+ if (lttng_opt_mi) {
+ writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi);
+ if (!writer) {
+ ret = -LTTNG_ERR_NOMEM;
+ goto end;
+ }
+
+ /* Open command element */
+ ret = mi_lttng_writer_command_open(writer,
+ mi_lttng_element_command_enable_event);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Open output element */
+ ret = mi_lttng_writer_open_element(writer,
+ mi_lttng_element_command_output);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
opt_event_list = (char*) poptGetArg(pc);
if (opt_event_list == NULL && opt_enable_all == 0) {
ERR("Missing event name(s).\n");
if (!opt_session_name) {
session_name = get_session_name();
if (session_name == NULL) {
- ret = CMD_ERROR;
- goto end;
+ command_ret = CMD_ERROR;
+ success = 0;
+ goto mi_closing;
}
} else {
session_name = opt_session_name;
}
- ret = enable_events(session_name);
+ command_ret = enable_events(session_name);
+ if (command_ret) {
+ success = 0;
+ goto mi_closing;
+ }
+
+mi_closing:
+ /* Mi closing */
+ if (lttng_opt_mi) {
+ /* Close output element */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ ret = mi_lttng_writer_write_element_bool(writer,
+ mi_lttng_element_command_success, success);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+
+ /* Command element close */
+ ret = mi_lttng_writer_command_close(writer);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
end:
+ /* Mi clean-up */
+ if (writer && mi_lttng_writer_destroy(writer)) {
+ /* Preserve original error code */
+ ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL;
+ }
+
if (opt_session_name == NULL) {
free(session_name);
}
+ /* Overwrite ret if an error occurred in enable_events */
+ ret = command_ret ? command_ret : ret;
+
poptFreeContext(pc);
return ret;
}
projects / lttng-tools.git / blobdiff