*/
#define _LGPL_SOURCE
+#include <common/compat/getenv.hpp>
+#include <common/compat/string.hpp>
+#include <common/sessiond-comm/sessiond-comm.hpp>
+#include <common/string-utils/string-utils.hpp>
+#include <common/utils.hpp>
+
+#include <ctype.h>
+#include <inttypes.h>
#include <popt.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
-#include <inttypes.h>
-#include <ctype.h>
-
-#include <common/sessiond-comm/sessiond-comm.h>
-#include <common/compat/string.h>
-#include <common/compat/getenv.h>
-#include <common/string-utils/string-utils.h>
-#include <common/utils.h>
/* Mi dependancy */
-#include <common/mi-lttng.h>
+#include "../command.hpp"
+#include "../loglevel.hpp"
+#include "../uprobe.hpp"
-#include <lttng/domain-internal.h>
-#include <lttng/event-internal.h>
+#include <common/mi-lttng.hpp>
-#include "../command.h"
-#include "../loglevel.h"
-#include "../uprobe.h"
+#include <lttng/domain-internal.hpp>
+#include <lttng/event-internal.hpp>
#if (LTTNG_SYMBOL_NAME_LEN == 256)
-#define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255"
+#define LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "255"
#endif
-static char *opt_event_list;
-static int opt_event_type;
-static const char *opt_loglevel;
-static int opt_loglevel_type;
-static int opt_kernel;
-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_userspace_probe;
-static char *opt_function;
-static char *opt_channel_name;
-static char *opt_filter;
-static char *opt_exclude;
+namespace {
+
+int opt_event_type;
+const char *opt_loglevel;
+int opt_loglevel_type;
+int opt_kernel;
+char *opt_session_name;
+int opt_userspace;
+int opt_jul;
+int opt_log4j;
+int opt_python;
+int opt_enable_all;
+char *opt_probe;
+char *opt_userspace_probe;
+char *opt_function;
+char *opt_channel_name;
+char *opt_filter;
+char *opt_exclude;
#ifdef LTTNG_EMBED_HELP
static const char help_msg[] =
#include <lttng-enable-event.1.h>
-;
+ ;
#endif
enum {
OPT_EXCLUDE,
};
-static struct lttng_handle *handle;
-static struct mi_writer *writer;
+struct lttng_handle *handle;
+struct mi_writer *writer;
-static struct poptOption long_options[] = {
+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_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},
- {"userspace-probe",0, POPT_ARG_STRING, &opt_userspace_probe, OPT_USERSPACE_PROBE, 0, 0},
- {"function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, 0, 0},
- {"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},
- {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL},
- {"filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, 0, 0},
- {"exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, 0, 0},
- {0, 0, 0, 0, 0, 0, 0}
+ { "help", 'h', POPT_ARG_NONE, nullptr, OPT_HELP, nullptr, nullptr },
+ { "session", 's', POPT_ARG_STRING, &opt_session_name, 0, nullptr, nullptr },
+ { "all", 'a', POPT_ARG_VAL, &opt_enable_all, 1, nullptr, nullptr },
+ { "channel", 'c', POPT_ARG_STRING, &opt_channel_name, 0, nullptr, nullptr },
+ { "kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, nullptr, nullptr },
+ { "userspace", 'u', POPT_ARG_NONE, nullptr, OPT_USERSPACE, nullptr, nullptr },
+ { "jul", 'j', POPT_ARG_VAL, &opt_jul, 1, nullptr, nullptr },
+ { "log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, nullptr, nullptr },
+ { "python", 'p', POPT_ARG_VAL, &opt_python, 1, nullptr, nullptr },
+ { "tracepoint", 0, POPT_ARG_NONE, nullptr, OPT_TRACEPOINT, nullptr, nullptr },
+ { "probe", 0, POPT_ARG_STRING, &opt_probe, OPT_PROBE, nullptr, nullptr },
+ { "userspace-probe",
+ 0,
+ POPT_ARG_STRING,
+ &opt_userspace_probe,
+ OPT_USERSPACE_PROBE,
+ nullptr,
+ nullptr },
+ { "function", 0, POPT_ARG_STRING, &opt_function, OPT_FUNCTION, nullptr, nullptr },
+ { "syscall", 0, POPT_ARG_NONE, nullptr, OPT_SYSCALL, nullptr, nullptr },
+ { "loglevel", 0, POPT_ARG_STRING, nullptr, OPT_LOGLEVEL, nullptr, nullptr },
+ { "loglevel-only", 0, POPT_ARG_STRING, nullptr, OPT_LOGLEVEL_ONLY, nullptr, nullptr },
+ { "list-options", 0, POPT_ARG_NONE, nullptr, OPT_LIST_OPTIONS, nullptr, nullptr },
+ { "filter", 'f', POPT_ARG_STRING, &opt_filter, OPT_FILTER, nullptr, nullptr },
+ { "exclude", 'x', POPT_ARG_STRING, &opt_exclude, OPT_EXCLUDE, nullptr, nullptr },
+ { nullptr, 0, 0, nullptr, 0, nullptr, nullptr }
};
/*
* Parse probe options.
*/
-static int parse_probe_opts(struct lttng_event *ev, char *opt)
+int parse_probe_opts(struct lttng_event *ev, char *opt)
{
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) */
+#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) {
+ if (opt == nullptr) {
ret = CMD_ERROR;
goto end;
}
/* Check for symbol+offset */
- match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API
- "[^'+']+%" S_HEX_LEN_SCANF_IS_A_BROKEN_API "s", name, s_hex);
+ 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 (match == 2) {
strncpy(ev->attr.probe.symbol_name, name, LTTNG_SYMBOL_NAME_LEN);
ev->attr.probe.symbol_name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
ret = CMD_ERROR;
goto end;
}
- ev->attr.probe.offset = strtoull(s_hex, NULL, 0);
+ ev->attr.probe.offset = strtoull(s_hex, nullptr, 0);
DBG("probe offset %" PRIu64, ev->attr.probe.offset);
ev->attr.probe.addr = 0;
goto end;
/* Check for symbol */
if (isalpha(name[0]) || name[0] == '_') {
- match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s",
- name);
+ match = sscanf(opt, "%" LTTNG_SYMBOL_NAME_LEN_SCANF_IS_A_BROKEN_API "s", name);
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';
ret = CMD_ERROR;
goto end;
}
- ev->attr.probe.addr = strtoull(s_hex, NULL, 0);
+ ev->attr.probe.addr = strtoull(s_hex, nullptr, 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);
return ret;
}
-static
const char *print_channel_name(const char *name)
{
- return name ? : DEFAULT_CHANNEL_NAME;
+ return name ?: DEFAULT_CHANNEL_NAME;
}
-static
const char *print_raw_channel_name(const char *name)
{
- return name ? : "<default>";
+ return name ?: "<default>";
}
/*
* Mi print exlcusion list
*/
-static
int mi_print_exclusion(const struct lttng_dynamic_pointer_array *exclusions)
{
int ret;
}
for (i = 0; i < count; i++) {
- const char *exclusion = (const char *) lttng_dynamic_pointer_array_get_pointer(
- exclusions, i);
+ const char *exclusion =
+ (const char *) lttng_dynamic_pointer_array_get_pointer(exclusions, i);
- ret = mi_lttng_writer_write_element_string(writer,
- config_element_exclusion, exclusion);
+ ret = mi_lttng_writer_write_element_string(
+ writer, config_element_exclusion, exclusion);
if (ret) {
goto end;
}
/*
* Return allocated string for pretty-printing exclusion names.
*/
-static
char *print_exclusions(const struct lttng_dynamic_pointer_array *exclusions)
{
int length = 0;
/* Calculate total required length. */
for (i = 0; i < count; i++) {
- const char *exclusion = (const char *) lttng_dynamic_pointer_array_get_pointer(
- exclusions, i);
+ const char *exclusion =
+ (const char *) lttng_dynamic_pointer_array_get_pointer(exclusions, i);
length += strlen(exclusion) + 4;
}
length += sizeof(preamble);
- ret = (char *) zmalloc(length);
+ ret = calloc<char>(length);
if (!ret) {
- return NULL;
+ return nullptr;
}
strncpy(ret, preamble, length);
for (i = 0; i < count; i++) {
- const char *exclusion = (const char *) lttng_dynamic_pointer_array_get_pointer(
- exclusions, i);
+ const char *exclusion =
+ (const char *) lttng_dynamic_pointer_array_get_pointer(exclusions, i);
strcat(ret, "\"");
strcat(ret, exclusion);
return ret;
}
-static
int check_exclusion_subsets(const char *event_name, const char *exclusion)
{
bool warn = false;
if (*x == '*') {
/* Event is a subset of the excluder */
ERR("Event %s: %s excludes all events from %s",
- event_name, exclusion, event_name);
+ event_name,
+ exclusion,
+ event_name);
goto error;
}
goto end;
}
-cmp_chars:
+ cmp_chars:
if (*x != *e) {
warn = true;
break;
end:
if (warn) {
WARN("Event %s: %s does not exclude any events from %s",
- event_name, exclusion, event_name);
- }
-
- return ret;
-}
-
-int validate_exclusion_list(const char *event_name,
- const struct lttng_dynamic_pointer_array *exclusions)
-{
- int ret;
-
- /* Event name must be a valid globbing pattern to allow exclusions. */
- if (!strutils_is_star_glob_pattern(event_name)) {
- ERR("Event %s: Exclusions can only be used with a globbing pattern",
- event_name);
- goto error;
- }
-
- /*
- * If the event name is a star-at-end only globbing pattern,
- * then we can validate the individual exclusions. Otherwise
- * all exclusions are passed to the session daemon.
- */
- if (strutils_is_star_at_the_end_only_glob_pattern(event_name)) {
- size_t i, num_exclusions;
-
- num_exclusions = lttng_dynamic_pointer_array_get_count(exclusions);
-
- for (i = 0; i < num_exclusions; i++) {
- const char *exclusion =
- (const char *) lttng_dynamic_pointer_array_get_pointer(
- exclusions, i);
-
- if (!strutils_is_star_glob_pattern(exclusion) ||
- strutils_is_star_at_the_end_only_glob_pattern(exclusion)) {
- ret = check_exclusion_subsets(event_name, exclusion);
- if (ret) {
- goto error;
- }
- }
- }
+ event_name,
+ exclusion,
+ event_name);
}
- ret = 0;
- goto end;
-
-error:
- ret = -1;
-
-end:
return ret;
}
-static int create_exclusion_list_and_validate(const char *event_name,
- const char *exclusions_arg,
- struct lttng_dynamic_pointer_array *exclusions)
+int create_exclusion_list_and_validate(const char *event_name,
+ const char *exclusions_arg,
+ struct lttng_dynamic_pointer_array *exclusions)
{
int ret = 0;
goto error;
}
- if (validate_exclusion_list(event_name, exclusions) !=
- 0) {
+ if (validate_exclusion_list(event_name, exclusions) != 0) {
goto error;
}
return ret;
}
-static void warn_on_truncated_exclusion_names(const struct lttng_dynamic_pointer_array *exclusions,
- int *warn)
+void warn_on_truncated_exclusion_names(const struct lttng_dynamic_pointer_array *exclusions,
+ int *warn)
{
size_t i;
const size_t num_exclusions = lttng_dynamic_pointer_array_get_count(exclusions);
for (i = 0; i < num_exclusions; i++) {
- const char * const exclusion = (const char *) lttng_dynamic_pointer_array_get_pointer(exclusions, i);
+ const char *const exclusion =
+ (const char *) lttng_dynamic_pointer_array_get_pointer(exclusions, i);
if (strlen(exclusion) >= LTTNG_SYMBOL_NAME_LEN) {
- WARN("Event exclusion \"%s\" will be truncated",
- exclusion);
+ WARN("Event exclusion \"%s\" will be truncated", exclusion);
*warn = 1;
}
}
* 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 enable_events(char *session_name, char *event_list)
{
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;
+ char *event_name, *channel_name = nullptr;
struct lttng_event *ev;
struct lttng_domain dom = {};
struct lttng_dynamic_pointer_array exclusions;
- struct lttng_userspace_probe_location *uprobe_loc = NULL;
+ struct lttng_userspace_probe_location *uprobe_loc = nullptr;
- lttng_dynamic_pointer_array_init(&exclusions, NULL);
+ lttng_dynamic_pointer_array_init(&exclusions, nullptr);
ev = lttng_event_create();
if (!ev) {
case LTTNG_DOMAIN_LOG4J:
case LTTNG_DOMAIN_PYTHON:
ERR("Event name exclusions are not yet implemented for %s events",
- lttng_domain_type_str(dom.type));
+ lttng_domain_type_str(dom.type));
ret = CMD_ERROR;
goto error;
case LTTNG_DOMAIN_UST:
case LTTNG_EVENT_USERSPACE_PROBE:
case LTTNG_EVENT_FUNCTION:
ERR("Filter expressions are not supported for %s events",
- get_event_type_str((lttng_event_type) opt_event_type));
+ get_event_type_str((lttng_event_type) opt_event_type));
ret = CMD_ERROR;
goto error;
default:
channel_name = opt_channel_name;
handle = lttng_create_handle(session_name, &dom);
- if (handle == NULL) {
+ if (handle == nullptr) {
ret = -1;
goto error;
}
if (opt_userspace) {
enum lttng_loglevel loglevel;
- name_search_ret = loglevel_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret =
+ loglevel_name_to_value(opt_loglevel, &loglevel);
ev->loglevel = (int) loglevel;
} else if (opt_jul) {
enum lttng_loglevel_jul loglevel;
- name_search_ret = loglevel_jul_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret =
+ loglevel_jul_name_to_value(opt_loglevel, &loglevel);
ev->loglevel = (int) loglevel;
} else if (opt_log4j) {
enum lttng_loglevel_log4j loglevel;
- name_search_ret = loglevel_log4j_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret = loglevel_log4j_name_to_value(opt_loglevel,
+ &loglevel);
ev->loglevel = (int) loglevel;
} else {
/* python domain. */
enum lttng_loglevel_python loglevel;
- name_search_ret = loglevel_python_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret = loglevel_python_name_to_value(
+ opt_loglevel, &loglevel);
ev->loglevel = (int) loglevel;
}
}
if (opt_exclude) {
- ret = create_exclusion_list_and_validate("*",
- opt_exclude, &exclusions);
+ ret = create_exclusion_list_and_validate("*", opt_exclude, &exclusions);
if (ret) {
ret = CMD_ERROR;
goto error;
}
ev->exclusion = 1;
- warn_on_truncated_exclusion_names(&exclusions,
- &warn);
+ warn_on_truncated_exclusion_names(&exclusions, &warn);
}
if (!opt_filter) {
- ret = lttng_enable_event_with_exclusions(handle,
- ev, channel_name,
- NULL,
- lttng_dynamic_pointer_array_get_count(&exclusions),
- (char **) exclusions.array.buffer.data);
+ ret = lttng_enable_event_with_exclusions(
+ handle,
+ ev,
+ channel_name,
+ nullptr,
+ lttng_dynamic_pointer_array_get_count(&exclusions),
+ (char **) exclusions.array.buffer.data);
if (ret < 0) {
switch (-ret) {
case LTTNG_ERR_KERN_EVENT_EXIST:
WARN("Kernel events already enabled (channel %s, session %s)",
- print_channel_name(channel_name), session_name);
+ 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.";
+ 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);
+ msg,
+ print_channel_name(channel_name),
+ session_name);
error = 1;
break;
}
default:
ERR("Events: %s (channel %s, session %s)",
- lttng_strerror(ret),
- ret == -LTTNG_ERR_NEED_CHANNEL_NAME
- ? print_raw_channel_name(channel_name)
- : print_channel_name(channel_name),
- session_name);
+ lttng_strerror(ret),
+ ret == -LTTNG_ERR_NEED_CHANNEL_NAME ?
+ print_raw_channel_name(channel_name) :
+ print_channel_name(channel_name),
+ session_name);
error = 1;
break;
}
goto end;
}
MSG("All %s tracepoints%s are enabled in channel %s for loglevel %s",
- lttng_domain_type_str(dom.type),
- exclusion_string,
- print_channel_name(channel_name),
- opt_loglevel);
+ lttng_domain_type_str(dom.type),
+ exclusion_string,
+ print_channel_name(channel_name),
+ opt_loglevel);
free(exclusion_string);
} else {
char *exclusion_string = print_exclusions(&exclusions);
goto end;
}
MSG("All %s tracepoints%s are enabled in channel %s",
- lttng_domain_type_str(dom.type),
- exclusion_string,
- print_channel_name(channel_name));
+ lttng_domain_type_str(dom.type),
+ exclusion_string,
+ print_channel_name(channel_name));
free(exclusion_string);
}
break;
case LTTNG_EVENT_SYSCALL:
if (opt_kernel) {
MSG("All %s system calls are enabled in channel %s",
- lttng_domain_type_str(dom.type),
- print_channel_name(channel_name));
+ lttng_domain_type_str(dom.type),
+ print_channel_name(channel_name));
}
break;
case LTTNG_EVENT_ALL:
goto end;
}
MSG("All %s events%s are enabled in channel %s for loglevel %s",
- lttng_domain_type_str(dom.type),
- exclusion_string,
- print_channel_name(channel_name),
- opt_loglevel);
+ lttng_domain_type_str(dom.type),
+ exclusion_string,
+ print_channel_name(channel_name),
+ opt_loglevel);
free(exclusion_string);
} else {
char *exclusion_string = print_exclusions(&exclusions);
goto end;
}
MSG("All %s events%s are enabled in channel %s",
- lttng_domain_type_str(dom.type),
- exclusion_string,
- print_channel_name(channel_name));
+ lttng_domain_type_str(dom.type),
+ exclusion_string,
+ print_channel_name(channel_name));
free(exclusion_string);
}
break;
}
if (opt_filter) {
- command_ret = lttng_enable_event_with_exclusions(handle, ev, channel_name,
- opt_filter,
- lttng_dynamic_pointer_array_get_count(&exclusions),
- (char **) exclusions.array.buffer.data);
+ command_ret = lttng_enable_event_with_exclusions(
+ handle,
+ ev,
+ channel_name,
+ opt_filter,
+ lttng_dynamic_pointer_array_get_count(&exclusions),
+ (char **) exclusions.array.buffer.data);
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);
+ " (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.";
+ 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);
+ 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(command_ret),
- command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
- ? print_raw_channel_name(channel_name)
- : print_channel_name(channel_name),
- session_name, opt_filter);
+ 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;
}
}
/* Success ? */
- ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success, success);
+ ret = mi_lttng_writer_write_element_bool(
+ writer, mi_lttng_element_command_success, success);
if (ret) {
ret = CMD_ERROR;
goto error;
}
/* Strip event list */
- event_name = strtok(opt_event_list, ",");
- while (event_name != NULL) {
+ event_name = strtok(event_list, ",");
+ while (event_name != nullptr) {
/* Copy name and type of the event */
strncpy(ev->name, event_name, LTTNG_SYMBOL_NAME_LEN);
ev->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
/* Kernel tracer action */
if (opt_kernel) {
DBG("Enabling kernel event %s for channel %s",
- event_name,
- print_channel_name(channel_name));
+ event_name,
+ print_channel_name(channel_name));
switch (opt_event_type) {
- case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */
+ case LTTNG_EVENT_ALL: /* Enable tracepoints and syscalls */
/* If event name differs from *, select tracepoint. */
- if (strcmp(ev->name, "*")) {
+ if (strcmp(ev->name, "*") != 0) {
ev->type = LTTNG_EVENT_TRACEPOINT;
}
break;
}
/* Ownership of the uprobe location was transferred to the event. */
- uprobe_loc = NULL;
+ uprobe_loc = nullptr;
break;
case LTTNG_EVENT_FUNCTION:
ret = parse_probe_opts(ev, opt_function);
/* kernel loglevels not implemented */
ev->loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
- } else if (opt_userspace) { /* User-space tracer action */
- DBG("Enabling UST event %s for channel %s, loglevel %s", event_name,
- print_channel_name(channel_name), opt_loglevel ? : "<all>");
+ } else if (opt_userspace) { /* User-space tracer action */
+ DBG("Enabling UST event %s for channel %s, loglevel %s",
+ event_name,
+ print_channel_name(channel_name),
+ opt_loglevel ?: "<all>");
switch (opt_event_type) {
- case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */
+ case LTTNG_EVENT_ALL: /* Default behavior is tracepoint */
/* Fall-through */
case LTTNG_EVENT_TRACEPOINT:
/* Copy name and type of the event */
if (opt_exclude) {
ev->exclusion = 1;
- if (opt_event_type != LTTNG_EVENT_ALL && opt_event_type != LTTNG_EVENT_TRACEPOINT) {
+ 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;
goto error;
/* Free previously allocated items. */
lttng_dynamic_pointer_array_reset(&exclusions);
ret = create_exclusion_list_and_validate(
- event_name, opt_exclude,
- &exclusions);
+ event_name, opt_exclude, &exclusions);
if (ret) {
ret = CMD_ERROR;
goto error;
}
- warn_on_truncated_exclusion_names(
- &exclusions, &warn);
+ warn_on_truncated_exclusion_names(&exclusions, &warn);
}
ev->loglevel_type = (lttng_loglevel_type) opt_loglevel_type;
if (opt_loglevel) {
enum lttng_loglevel loglevel;
- const int name_search_ret = loglevel_name_to_value(opt_loglevel, &loglevel);
+ const int name_search_ret =
+ loglevel_name_to_value(opt_loglevel, &loglevel);
if (name_search_ret == -1) {
ERR("Unknown loglevel %s", opt_loglevel);
}
} else if (opt_jul || opt_log4j || opt_python) {
if (opt_event_type != LTTNG_EVENT_ALL &&
- opt_event_type != LTTNG_EVENT_TRACEPOINT) {
+ opt_event_type != LTTNG_EVENT_TRACEPOINT) {
ERR("Event type not supported for domain.");
ret = CMD_UNSUPPORTED;
goto error;
if (opt_jul) {
enum lttng_loglevel_jul loglevel;
- name_search_ret = loglevel_jul_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret =
+ loglevel_jul_name_to_value(opt_loglevel, &loglevel);
ev->loglevel = (int) loglevel;
} else if (opt_log4j) {
enum lttng_loglevel_log4j loglevel;
- name_search_ret = loglevel_log4j_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret = loglevel_log4j_name_to_value(opt_loglevel,
+ &loglevel);
ev->loglevel = (int) loglevel;
} else {
/* python domain. */
enum lttng_loglevel_python loglevel;
- name_search_ret = loglevel_python_name_to_value(opt_loglevel, &loglevel);
+ name_search_ret = loglevel_python_name_to_value(
+ opt_loglevel, &loglevel);
ev->loglevel = (int) loglevel;
}
if (!opt_filter) {
char *exclusion_string;
- command_ret = lttng_enable_event_with_exclusions(handle,
- ev, channel_name,
- NULL,
- lttng_dynamic_pointer_array_get_count(&exclusions),
- (char **) exclusions.array.buffer.data);
+ command_ret = lttng_enable_event_with_exclusions(
+ handle,
+ ev,
+ channel_name,
+ nullptr,
+ lttng_dynamic_pointer_array_get_count(&exclusions),
+ (char **) exclusions.array.buffer.data);
exclusion_string = print_exclusions(&exclusions);
if (!exclusion_string) {
PERROR("Cannot allocate exclusion_string");
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);
+ 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);
+ 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;
}
case LTTNG_ERR_SDT_PROBE_SEMAPHORE:
ERR("SDT probes %s guarded by semaphores are not supported (channel %s, session %s)",
- event_name, print_channel_name(channel_name),
- session_name);
+ event_name,
+ 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(command_ret),
- command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
- ? print_raw_channel_name(channel_name)
- : print_channel_name(channel_name),
- session_name);
+ ERR("Event %s%s: %s (channel %s, session %s)",
+ event_name,
+ exclusion_string,
+ 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;
}
case LTTNG_DOMAIN_KERNEL:
case LTTNG_DOMAIN_UST:
MSG("%s event %s%s created in channel %s",
- lttng_domain_type_str(dom.type),
- event_name,
- exclusion_string,
- print_channel_name(channel_name));
+ lttng_domain_type_str(dom.type),
+ event_name,
+ exclusion_string,
+ print_channel_name(channel_name));
break;
case LTTNG_DOMAIN_JUL:
case LTTNG_DOMAIN_LOG4J:
* name for agent domains.
*/
MSG("%s event %s%s enabled",
- lttng_domain_type_str(dom.type),
- event_name,
- exclusion_string);
+ lttng_domain_type_str(dom.type),
+ event_name,
+ exclusion_string);
break;
default:
abort();
/* Filter present */
ev->filter = 1;
- command_ret = lttng_enable_event_with_exclusions(handle, ev, channel_name,
- opt_filter,
- lttng_dynamic_pointer_array_get_count(&exclusions),
- (char **) exclusions.array.buffer.data);
+ command_ret = lttng_enable_event_with_exclusions(
+ handle,
+ ev,
+ channel_name,
+ opt_filter,
+ lttng_dynamic_pointer_array_get_count(&exclusions),
+ (char **) exclusions.array.buffer.data);
exclusion_string = print_exclusions(&exclusions);
if (!exclusion_string) {
PERROR("Cannot allocate exclusion_string");
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);
+ " (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);
+ 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(command_ret),
- command_ret == -LTTNG_ERR_NEED_CHANNEL_NAME
- ? print_raw_channel_name(channel_name)
- : print_channel_name(channel_name),
- session_name, opt_filter);
+ ERR("Event %s%s: %s (channel %s, session %s, filter \'%s\')",
+ ev->name,
+ exclusion_string,
+ 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;
}
} else {
MSG("Event %s%s: Filter '%s' successfully set",
- event_name, exclusion_string,
- opt_filter);
+ event_name,
+ exclusion_string,
+ opt_filter);
}
free(exclusion_string);
}
}
/* Success ? */
- ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success, success);
+ ret = mi_lttng_writer_write_element_bool(
+ writer, mi_lttng_element_command_success, success);
if (ret) {
ret = CMD_ERROR;
goto end;
}
/* Next event */
- event_name = strtok(NULL, ",");
+ event_name = strtok(nullptr, ",");
/* Reset warn, error and success */
success = 1;
}
return ret;
}
+} /* namespace */
+
+int validate_exclusion_list(const char *event_name,
+ const struct lttng_dynamic_pointer_array *exclusions)
+{
+ int ret;
+
+ /* Event name must be a valid globbing pattern to allow exclusions. */
+ if (!strutils_is_star_glob_pattern(event_name)) {
+ ERR("Event %s: Exclusions can only be used with a globbing pattern", event_name);
+ goto error;
+ }
+
+ /*
+ * If the event name is a star-at-end only globbing pattern,
+ * then we can validate the individual exclusions. Otherwise
+ * all exclusions are passed to the session daemon.
+ */
+ if (strutils_is_star_at_the_end_only_glob_pattern(event_name)) {
+ size_t i, num_exclusions;
+
+ num_exclusions = lttng_dynamic_pointer_array_get_count(exclusions);
+
+ for (i = 0; i < num_exclusions; i++) {
+ const char *exclusion =
+ (const char *) lttng_dynamic_pointer_array_get_pointer(exclusions,
+ i);
+
+ if (!strutils_is_star_glob_pattern(exclusion) ||
+ strutils_is_star_at_the_end_only_glob_pattern(exclusion)) {
+ ret = check_exclusion_subsets(event_name, exclusion);
+ if (ret) {
+ goto error;
+ }
+ }
+ }
+ }
+
+ ret = 0;
+ goto end;
+
+error:
+ ret = -1;
+
+end:
+ return ret;
+}
+
/*
* Add event to trace session
*/
{
int opt, ret = CMD_SUCCESS, command_ret = CMD_SUCCESS, success = 1;
static poptContext pc;
- char *session_name = NULL;
- const char *leftover = NULL;
+ char *session_name = nullptr;
+ char *event_list = nullptr;
+ const char *arg_event_list = nullptr;
+ const char *leftover = nullptr;
int event_type = -1;
- pc = poptGetContext(NULL, argc, argv, long_options, 0);
+ pc = poptGetContext(nullptr, argc, argv, long_options, 0);
poptReadDefaultConfig(pc, 0);
/* Default event type */
}
ret = print_missing_or_multiple_domains(
- opt_kernel + opt_userspace + opt_jul + opt_log4j +
- opt_python,
- true);
+ opt_kernel + opt_userspace + opt_jul + opt_log4j + opt_python, true);
if (ret) {
ret = CMD_ERROR;
goto end;
}
/* Open command element */
- ret = mi_lttng_writer_command_open(writer,
- mi_lttng_element_command_enable_event);
+ 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);
+ 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");
+ arg_event_list = poptGetArg(pc);
+ if (arg_event_list == nullptr && opt_enable_all == 0) {
+ ERR("Missing event name(s).");
ret = CMD_ERROR;
goto end;
}
+ if (opt_enable_all == 0) {
+ event_list = strdup(arg_event_list);
+ if (event_list == nullptr) {
+ PERROR("Failed to copy event name(s)");
+ ret = CMD_ERROR;
+ goto end;
+ }
+ }
+
leftover = poptGetArg(pc);
if (leftover) {
ERR("Unknown argument: %s", leftover);
if (!opt_session_name) {
session_name = get_session_name();
- if (session_name == NULL) {
+ if (session_name == nullptr) {
command_ret = CMD_ERROR;
success = 0;
goto mi_closing;
session_name = opt_session_name;
}
- command_ret = enable_events(session_name);
+ command_ret = enable_events(session_name, event_list);
if (command_ret) {
success = 0;
goto mi_closing;
goto end;
}
- ret = mi_lttng_writer_write_element_bool(writer,
- mi_lttng_element_command_success, success);
+ ret = mi_lttng_writer_write_element_bool(
+ writer, mi_lttng_element_command_success, success);
if (ret) {
ret = CMD_ERROR;
goto end;
ret = ret ? ret : LTTNG_ERR_MI_IO_FAIL;
}
- if (opt_session_name == NULL) {
+ if (opt_session_name == nullptr) {
free(session_name);
}
+ free(event_list);
+
/* Overwrite ret if an error occurred in enable_events */
ret = command_ret ? command_ret : ret;
poptFreeContext(pc);
return ret;
}
-