X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Ferror.c;h=c5ddadfa07976b2ad406ff3d3819293d3f0f9646;hp=c3fde51d4f66990a8e96355f3f764cbb4c6d97a7;hb=546699de452c27c8687a9c4e522359079ef5e4fa;hpb=7d8829fd67c56102436f3e1e16d652f23076ed86 diff --git a/src/common/error.c b/src/common/error.c index c3fde51d4..c5ddadfa0 100644 --- a/src/common/error.c +++ b/src/common/error.c @@ -18,14 +18,24 @@ #define _LGPL_SOURCE #include #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); @@ -36,8 +46,9 @@ const char *log_add_time(void) struct tm tm, *res; struct timespec tp; time_t now; + const int errsv = errno; - ret = clock_gettime(CLOCK_REALTIME, &tp); + ret = lttng_clock_gettime(CLOCK_REALTIME, &tp); if (ret < 0) { goto error; } @@ -50,16 +61,18 @@ const char *log_add_time(void) /* Format time in the TLS variable. */ ret = snprintf(URCU_TLS(error_log_time).str, sizeof(URCU_TLS(error_log_time).str), - "%02d:%02d:%02d.%06ld", + "%02d:%02d:%02d.%09ld", tm.tm_hour, tm.tm_min, tm.tm_sec, tp.tv_nsec); if (ret < 0) { goto error; } + errno = errsv; return URCU_TLS(error_log_time).str; error: /* Return an empty string on error so logging is not affected. */ + errno = errsv; return ""; } @@ -166,10 +179,54 @@ static const char *error_string_array[] = { [ 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_ID_TRACKED) ] = "ID already tracked", + [ ERROR_INDEX(LTTNG_ERR_ID_NOT_TRACKED) ] = "ID not tracked", [ ERROR_INDEX(LTTNG_ERR_INVALID_CHANNEL_DOMAIN) ] = "Invalid channel domain", - [ ERROR_INDEX(LTTNG_ERR_OVERFLOW) ] = "Overflow occured", + [ 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", + [ ERROR_INDEX(LTTNG_ERR_PROBE_LOCATION_INVAL) ] = "Invalid userspace probe location", + [ ERROR_INDEX(LTTNG_ERR_ELF_PARSING) ] = "ELF parsing error", + [ ERROR_INDEX(LTTNG_ERR_SDT_PROBE_SEMAPHORE) ] = "SDT probe guarded by a semaphore", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_FAIL_CONSUMER) ] = "Rotation failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_ROTATE_RENAME_FAIL_CONSUMER) ] = "Rotation rename failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_PENDING_LOCAL_FAIL_CONSUMER) ] = "Rotation pending check (local) failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_PENDING_RELAY_FAIL_CONSUMER) ] = "Rotation pending check (relay) failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_MKDIR_FAIL_CONSUMER) ] = "Directory creation failure on consumer", + [ ERROR_INDEX(LTTNG_ERR_CHAN_NOT_FOUND) ] = "Channel not found", + [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_UNSUPPORTED) ] = "Session configuration does not allow the use of snapshots", + [ ERROR_INDEX(LTTNG_ERR_SESSION_NOT_EXIST) ] = "Tracing session does not exist", + [ ERROR_INDEX(LTTNG_ERR_CREATE_TRACE_CHUNK_FAIL_CONSUMER) ] = "Trace chunk creation failed on consumer", + [ ERROR_INDEX(LTTNG_ERR_CLOSE_TRACE_CHUNK_FAIL_CONSUMER) ] = "Trace chunk close failed on consumer", + [ ERROR_INDEX(LTTNG_ERR_TRACE_CHUNK_EXISTS_FAIL_CONSUMER) ] = "Failed to query consumer for trace chunk existence", + [ ERROR_INDEX(LTTNG_ERR_INVALID_PROTOCOL) ] = "Protocol error occurred", + [ ERROR_INDEX(LTTNG_ERR_FILE_CREATION_ERROR) ] = "Failed to create file", + [ ERROR_INDEX(LTTNG_ERR_TIMER_STOP_ERROR) ] = "Failed to stop a timer", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_NOT_AVAILABLE_KERNEL) ] = "Rotation feature not supported by the kernel tracer.", + [ ERROR_INDEX(LTTNG_ERR_CLEAR_RELAY_DISALLOWED) ] = "Relayd daemon peer does not allow sessions to be cleared", + [ ERROR_INDEX(LTTNG_ERR_CLEAR_NOT_AVAILABLE_RELAY) ] = "Clearing a session is not supported by the relay daemon", + [ ERROR_INDEX(LTTNG_ERR_CLEAR_FAIL_CONSUMER) ] = "Consumer failed to clear the session", + [ ERROR_INDEX(LTTNG_ERR_ROTATION_AFTER_STOP_CLEAR) ] = "Session was already cleared since it became inactive", + [ ERROR_INDEX(LTTNG_ERR_USER_NOT_FOUND) ] = "User not found", + [ ERROR_INDEX(LTTNG_ERR_GROUP_NOT_FOUND) ] = "Group not found", /* Last element */ [ ERROR_INDEX(LTTNG_ERR_NR) ] = "Unknown error code" @@ -192,3 +249,22 @@ const char *error_get_str(int32_t code) 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(); + } +}