X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ferror.c;h=b888c2643f6e1a66ccaaedef601cae8e49cc516f;hp=b288b90baa723505b42be3f8b87ca54d0a93206f;hb=HEAD;hpb=66ea93b10c703e1b3dda1e17109eed9138e4ece2 diff --git a/src/common/error.c b/src/common/error.c deleted file mode 100644 index b288b90ba..000000000 --- a/src/common/error.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Copyright (C) 2012 - David Goulet - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License, version 2 only, as - * published by the Free Software Foundation. - * - * 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., 51 - * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#define _LGPL_SOURCE -#include -#include -#include -#include - -#include -#include -#include - -#include "error.h" - -#define ERROR_INDEX(code) (code - LTTNG_OK) - -/* - * lttng_opt_abort_on_error: unset: -1, disabled: 0, enabled: 1. - * Controlled by the LTTNG_ABORT_ON_ERROR environment variable. - */ -static int lttng_opt_abort_on_error = -1; - -/* TLS variable that contains the time of one single log entry. */ -DEFINE_URCU_TLS(struct log_time, error_log_time); - -LTTNG_HIDDEN -const char *log_add_time(void) -{ - int ret; - struct tm tm, *res; - struct timespec tp; - time_t now; - - ret = lttng_clock_gettime(CLOCK_REALTIME, &tp); - if (ret < 0) { - goto error; - } - now = (time_t) tp.tv_sec; - - res = localtime_r(&now, &tm); - if (!res) { - goto error; - } - - /* Format time in the TLS variable. */ - ret = snprintf(URCU_TLS(error_log_time).str, sizeof(URCU_TLS(error_log_time).str), - "%02d:%02d:%02d.%09ld", - tm.tm_hour, tm.tm_min, tm.tm_sec, tp.tv_nsec); - if (ret < 0) { - goto error; - } - - return URCU_TLS(error_log_time).str; - -error: - /* Return an empty string on error so logging is not affected. */ - return ""; -} - -/* - * Human readable error message. - */ -static const char *error_string_array[] = { - /* LTTNG_OK code MUST be at the top for the ERROR_INDEX macro to work */ - [ ERROR_INDEX(LTTNG_OK) ] = "Success", - [ ERROR_INDEX(LTTNG_ERR_UNK) ] = "Unknown error", - [ ERROR_INDEX(LTTNG_ERR_UND) ] = "Undefined command", - [ ERROR_INDEX(LTTNG_ERR_UNKNOWN_DOMAIN) ] = "Unknown tracing domain", - [ ERROR_INDEX(LTTNG_ERR_NO_SESSION) ] = "No session found", - [ ERROR_INDEX(LTTNG_ERR_CREATE_DIR_FAIL) ] = "Create directory failed", - [ ERROR_INDEX(LTTNG_ERR_SESSION_FAIL) ] = "Create session failed", - [ ERROR_INDEX(LTTNG_ERR_SESS_NOT_FOUND) ] = "Session name not found", - [ ERROR_INDEX(LTTNG_ERR_FATAL) ] = "Fatal error of the session daemon", - [ ERROR_INDEX(LTTNG_ERR_SELECT_SESS) ] = "A session MUST be selected", - [ ERROR_INDEX(LTTNG_ERR_EXIST_SESS) ] = "Session name already exists", - [ ERROR_INDEX(LTTNG_ERR_NO_EVENT) ] = "Event not found", - [ ERROR_INDEX(LTTNG_ERR_CONNECT_FAIL) ] = "Unable to connect to Unix socket", - [ ERROR_INDEX(LTTNG_ERR_EPERM) ] = "Permission denied", - [ ERROR_INDEX(LTTNG_ERR_KERN_NA) ] = "Kernel tracer not available", - [ ERROR_INDEX(LTTNG_ERR_KERN_VERSION) ] = "Kernel tracer version is not compatible", - [ ERROR_INDEX(LTTNG_ERR_KERN_EVENT_EXIST) ] = "Kernel event already exists", - [ ERROR_INDEX(LTTNG_ERR_KERN_SESS_FAIL) ] = "Kernel create session failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_EXIST) ] = "Kernel channel already exists", - [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_FAIL) ] = "Kernel create channel failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_NOT_FOUND) ] = "Kernel channel not found", - [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_DISABLE_FAIL) ] = "Disable kernel channel failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_ENABLE_FAIL) ] = "Enable kernel channel failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_CONTEXT_FAIL) ] = "Add kernel context failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_ENABLE_FAIL) ] = "Enable kernel event failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_DISABLE_FAIL) ] = "Disable kernel event failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_META_FAIL) ] = "Opening metadata failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_START_FAIL) ] = "Starting kernel trace failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_STOP_FAIL) ] = "Stopping kernel trace failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_CONSUMER_FAIL) ] = "Kernel consumer start failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_STREAM_FAIL) ] = "Kernel create stream failed", - [ ERROR_INDEX(LTTNG_ERR_KERN_LIST_FAIL) ] = "Listing kernel events failed", - [ ERROR_INDEX(LTTNG_ERR_UST_CALIBRATE_FAIL) ] = "UST calibration failed", - [ ERROR_INDEX(LTTNG_ERR_UST_SESS_FAIL) ] = "UST create session failed", - [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_FAIL) ] = "UST create channel failed", - [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_EXIST) ] = "UST channel already exist", - [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_NOT_FOUND) ] = "UST channel not found", - [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_DISABLE_FAIL) ] = "Disable UST channel failed", - [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_ENABLE_FAIL) ] = "Enable UST channel failed", - [ ERROR_INDEX(LTTNG_ERR_UST_ENABLE_FAIL) ] = "Enable UST event failed", - [ ERROR_INDEX(LTTNG_ERR_UST_DISABLE_FAIL) ] = "Disable UST event failed", - [ ERROR_INDEX(LTTNG_ERR_UST_META_FAIL) ] = "Opening metadata failed", - [ ERROR_INDEX(LTTNG_ERR_UST_START_FAIL) ] = "Starting UST trace failed", - [ ERROR_INDEX(LTTNG_ERR_UST_STOP_FAIL) ] = "Stopping UST trace failed", - [ ERROR_INDEX(LTTNG_ERR_UST_CONSUMER64_FAIL) ] = "64-bit UST consumer start failed", - [ ERROR_INDEX(LTTNG_ERR_UST_CONSUMER32_FAIL) ] = "32-bit UST consumer start failed", - [ ERROR_INDEX(LTTNG_ERR_UST_STREAM_FAIL) ] = "UST create stream failed", - [ ERROR_INDEX(LTTNG_ERR_UST_LIST_FAIL) ] = "Listing UST events failed", - [ ERROR_INDEX(LTTNG_ERR_UST_EVENT_EXIST) ] = "UST event already exist", - [ ERROR_INDEX(LTTNG_ERR_UST_EVENT_NOT_FOUND)] = "UST event not found", - [ ERROR_INDEX(LTTNG_ERR_UST_CONTEXT_EXIST)] = "UST context already exist", - [ ERROR_INDEX(LTTNG_ERR_UST_CONTEXT_INVAL)] = "UST invalid context", - [ ERROR_INDEX(LTTNG_ERR_NEED_ROOT_SESSIOND) ] = "Tracing the kernel requires a root lttng-sessiond daemon, as well as \"tracing\" group membership or root user ID for the lttng client.", - [ ERROR_INDEX(LTTNG_ERR_NO_UST) ] = "LTTng-UST tracer is not supported. Please rebuild lttng-tools with lttng-ust support enabled.", - [ ERROR_INDEX(LTTNG_ERR_TRACE_ALREADY_STARTED) ] = "Tracing has already been started once", - [ ERROR_INDEX(LTTNG_ERR_TRACE_ALREADY_STOPPED) ] = "Tracing has already been stopped", - [ ERROR_INDEX(LTTNG_ERR_KERN_EVENT_ENOSYS) ] = "Kernel event type not supported", - [ ERROR_INDEX(LTTNG_ERR_NEED_CHANNEL_NAME) ] = "Non-default channel exists within session: channel name needs to be specified with '-c name'", - [ ERROR_INDEX(LTTNG_ERR_INVALID) ] = "Invalid parameter", - [ ERROR_INDEX(LTTNG_ERR_NO_USTCONSUMERD) ] = "No UST consumer detected", - [ ERROR_INDEX(LTTNG_ERR_NO_KERNCONSUMERD) ] = "No kernel consumer detected", - [ ERROR_INDEX(LTTNG_ERR_EVENT_EXIST_LOGLEVEL) ] = "Event already enabled with different loglevel", - [ ERROR_INDEX(LTTNG_ERR_URL_DATA_MISS) ] = "Missing data path URL", - [ ERROR_INDEX(LTTNG_ERR_URL_CTRL_MISS) ] = "Missing control path URL", - [ ERROR_INDEX(LTTNG_ERR_ENABLE_CONSUMER_FAIL) ] = "Enabling consumer failed", - [ ERROR_INDEX(LTTNG_ERR_RELAYD_CONNECT_FAIL) ] = "Unable to connect to lttng-relayd", - [ ERROR_INDEX(LTTNG_ERR_RELAYD_VERSION_FAIL) ] = "Relay daemon not compatible", - [ ERROR_INDEX(LTTNG_ERR_FILTER_INVAL) ] = "Invalid filter bytecode", - [ ERROR_INDEX(LTTNG_ERR_FILTER_NOMEM) ] = "Not enough memory for filter bytecode", - [ ERROR_INDEX(LTTNG_ERR_FILTER_EXIST) ] = "Filter already exist", - [ ERROR_INDEX(LTTNG_ERR_NO_CONSUMER) ] = "Consumer not found for tracing session", - [ ERROR_INDEX(LTTNG_ERR_NO_SESSIOND) ] = "No session daemon is available", - [ ERROR_INDEX(LTTNG_ERR_SESSION_STARTED) ] = "Session is running", - [ ERROR_INDEX(LTTNG_ERR_NOT_SUPPORTED) ] = "Operation not supported", - [ ERROR_INDEX(LTTNG_ERR_UST_EVENT_ENABLED) ] = "UST event already enabled", - [ ERROR_INDEX(LTTNG_ERR_SET_URL) ] = "Error setting URL", - [ ERROR_INDEX(LTTNG_ERR_URL_EXIST) ] = "URL already exists", - [ ERROR_INDEX(LTTNG_ERR_BUFFER_NOT_SUPPORTED)] = "Buffer type not supported", - [ ERROR_INDEX(LTTNG_ERR_BUFFER_TYPE_MISMATCH)] = "Buffer type mismatch for session", - [ ERROR_INDEX(LTTNG_ERR_NOMEM)] = "Not enough memory", - [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_OUTPUT_EXIST) ] = "Snapshot output already exists", - [ ERROR_INDEX(LTTNG_ERR_START_SESSION_ONCE) ] = "Session needs to be started once", - [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_FAIL) ] = "Snapshot record failed", - [ ERROR_INDEX(LTTNG_ERR_CHAN_EXIST) ] = "Channel already exists", - [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_NODATA) ] = "No data available in snapshot", - [ ERROR_INDEX(LTTNG_ERR_NO_CHANNEL) ] = "No channel found in the session", - [ ERROR_INDEX(LTTNG_ERR_SESSION_INVALID_CHAR) ] = "Invalid character found in session name", - [ ERROR_INDEX(LTTNG_ERR_SAVE_FILE_EXIST) ] = "Session file already exists", - [ ERROR_INDEX(LTTNG_ERR_SAVE_IO_FAIL) ] = "IO error while writing session configuration", - [ ERROR_INDEX(LTTNG_ERR_LOAD_INVALID_CONFIG) ] = "Invalid session configuration", - [ ERROR_INDEX(LTTNG_ERR_LOAD_IO_FAIL) ] = "IO error while reading a session configuration", - [ ERROR_INDEX(LTTNG_ERR_LOAD_SESSION_NOENT) ] = "Session file not found", - [ ERROR_INDEX(LTTNG_ERR_MAX_SIZE_INVALID) ] = "Snapshot max size is invalid", - [ ERROR_INDEX(LTTNG_ERR_MI_OUTPUT_TYPE) ] = "Invalid MI output format", - [ ERROR_INDEX(LTTNG_ERR_MI_IO_FAIL) ] = "IO error while writing MI output", - [ ERROR_INDEX(LTTNG_ERR_MI_NOT_IMPLEMENTED) ] = "Mi feature not implemented", - [ ERROR_INDEX(LTTNG_ERR_INVALID_EVENT_NAME) ] = "Invalid event name", - [ ERROR_INDEX(LTTNG_ERR_INVALID_CHANNEL_NAME) ] = "Invalid channel name", - [ ERROR_INDEX(LTTNG_ERR_PID_TRACKED) ] = "PID already tracked", - [ ERROR_INDEX(LTTNG_ERR_PID_NOT_TRACKED) ] = "PID not tracked", - [ ERROR_INDEX(LTTNG_ERR_INVALID_CHANNEL_DOMAIN) ] = "Invalid channel domain", - [ ERROR_INDEX(LTTNG_ERR_OVERFLOW) ] = "Overflow occurred", - [ ERROR_INDEX(LTTNG_ERR_SESSION_NOT_STARTED) ] = "Session not started", - [ ERROR_INDEX(LTTNG_ERR_LIVE_SESSION) ] = "Live sessions are not supported", - [ ERROR_INDEX(LTTNG_ERR_PER_PID_SESSION) ] = "Per-PID tracing sessions are not supported", - [ ERROR_INDEX(LTTNG_ERR_KERN_CONTEXT_UNAVAILABLE) ] = "Context unavailable on this kernel", - [ ERROR_INDEX(LTTNG_ERR_REGEN_STATEDUMP_FAIL) ] = "Failed to regenerate the state dump", - [ ERROR_INDEX(LTTNG_ERR_REGEN_STATEDUMP_NOMEM) ] = "Failed to regenerate the state dump, not enough memory", - [ ERROR_INDEX(LTTNG_ERR_NOT_SNAPSHOT_SESSION) ] = "Snapshot command can't be applied to a non-snapshot session", - [ ERROR_INDEX(LTTNG_ERR_INVALID_TRIGGER) ] = "Invalid trigger", - [ ERROR_INDEX(LTTNG_ERR_TRIGGER_EXISTS) ] = "Trigger already registered", - [ ERROR_INDEX(LTTNG_ERR_TRIGGER_NOT_FOUND) ] = "Trigger not found", - [ ERROR_INDEX(LTTNG_ERR_COMMAND_CANCELLED) ] = "Command cancelled", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_PENDING) ] = "Rotation already pending for this session", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_NOT_AVAILABLE) ] = "Rotation feature not available for this session's creation mode", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_SCHEDULE_SET) ] = "A session rotation schedule of this type is already set on the session", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_SCHEDULE_NOT_SET) ] = "No session rotation schedule of this type is set on the session", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_MULTIPLE_AFTER_STOP) ] = "Session was already rotated once since it became inactive", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_WRONG_VERSION) ] = "Session rotation is not supported by this kernel tracer version", - [ ERROR_INDEX(LTTNG_ERR_NO_SESSION_OUTPUT) ] = "Session has no output", - [ ERROR_INDEX(LTTNG_ERR_ROTATION_NOT_AVAILABLE_RELAY) ] = "Rotation feature not available on the relay", - [ ERROR_INDEX(LTTNG_ERR_AGENT_TRACING_DISABLED) ] = "Session daemon agent tracing is disabled", - - /* Last element */ - [ ERROR_INDEX(LTTNG_ERR_NR) ] = "Unknown error code" -}; - -/* - * Return ptr to string representing a human readable error code from the - * lttng_error_code enum. - * - * These code MUST be negative in other to treat that as an error value. - */ -LTTNG_HIDDEN -const char *error_get_str(int32_t code) -{ - code = -code; - - if (code < LTTNG_OK || code > LTTNG_ERR_NR) { - code = LTTNG_ERR_NR; - } - - return error_string_array[ERROR_INDEX(code)]; -} - -LTTNG_HIDDEN -void lttng_abort_on_error(void) -{ - if (lttng_opt_abort_on_error < 0) { - /* Use lttng_secure_getenv() to query its state. */ - const char *value; - - value = lttng_secure_getenv("LTTNG_ABORT_ON_ERROR"); - if (value && !strcmp(value, "1")) { - lttng_opt_abort_on_error = 1; - } else { - lttng_opt_abort_on_error = 0; - } - } - if (lttng_opt_abort_on_error > 0) { - abort(); - } -}