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f73fabfd DG |
1 | /* |
2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License, version 2 only, as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
18 | #define _GNU_SOURCE | |
19 | #include <assert.h> | |
a0b439da | 20 | #include <inttypes.h> |
f73fabfd DG |
21 | |
22 | #include <lttng/lttng-error.h> | |
90e535ef | 23 | #include <common/common.h> |
f73fabfd DG |
24 | |
25 | #include "error.h" | |
26 | ||
27 | #define ERROR_INDEX(code) (code - LTTNG_OK) | |
28 | ||
a0b439da DG |
29 | /* TLS variable that contains the time of one single log entry. */ |
30 | DEFINE_URCU_TLS(struct log_time, error_log_time); | |
31 | ||
b2035012 | 32 | LTTNG_HIDDEN |
a0b439da DG |
33 | const char *log_add_time(void) |
34 | { | |
35 | int ret; | |
36 | struct tm tm, *res; | |
37 | struct timespec tp; | |
38 | time_t now; | |
39 | ||
40 | ret = clock_gettime(CLOCK_REALTIME, &tp); | |
41 | if (ret < 0) { | |
42 | goto error; | |
43 | } | |
44 | now = (time_t) tp.tv_sec; | |
45 | ||
46 | res = localtime_r(&now, &tm); | |
47 | if (!res) { | |
48 | goto error; | |
49 | } | |
50 | ||
51 | /* Format time in the TLS variable. */ | |
f79e29fe | 52 | ret = snprintf(URCU_TLS(error_log_time).str, sizeof(error_log_time.str), |
a0b439da DG |
53 | "%02d:%02d:%02d.%06ld", |
54 | tm.tm_hour, tm.tm_min, tm.tm_sec, tp.tv_nsec); | |
55 | if (ret < 0) { | |
56 | goto error; | |
57 | } | |
58 | ||
f79e29fe | 59 | return URCU_TLS(error_log_time).str; |
a0b439da DG |
60 | |
61 | error: | |
62 | /* Return an empty string on error so logging is not affected. */ | |
63 | return ""; | |
64 | } | |
65 | ||
f73fabfd DG |
66 | /* |
67 | * Human readable error message. | |
68 | */ | |
69 | static const char *error_string_array[] = { | |
70 | /* LTTNG_OK code MUST be at the top for the ERROR_INDEX macro to work */ | |
71 | [ ERROR_INDEX(LTTNG_OK) ] = "Success", | |
72 | [ ERROR_INDEX(LTTNG_ERR_UNK) ] = "Unknown error", | |
73 | [ ERROR_INDEX(LTTNG_ERR_UND) ] = "Undefined command", | |
74 | [ ERROR_INDEX(LTTNG_ERR_UNKNOWN_DOMAIN) ] = "Unknown tracing domain", | |
75 | [ ERROR_INDEX(LTTNG_ERR_NO_SESSION) ] = "No session found", | |
76 | [ ERROR_INDEX(LTTNG_ERR_CREATE_DIR_FAIL) ] = "Create directory failed", | |
77 | [ ERROR_INDEX(LTTNG_ERR_SESSION_FAIL) ] = "Create session failed", | |
78 | [ ERROR_INDEX(LTTNG_ERR_SESS_NOT_FOUND) ] = "Session name not found", | |
79 | [ ERROR_INDEX(LTTNG_ERR_FATAL) ] = "Fatal error of the session daemon", | |
80 | [ ERROR_INDEX(LTTNG_ERR_SELECT_SESS) ] = "A session MUST be selected", | |
552c8777 | 81 | [ ERROR_INDEX(LTTNG_ERR_EXIST_SESS) ] = "Session name already exists", |
f73fabfd DG |
82 | [ ERROR_INDEX(LTTNG_ERR_NO_EVENT) ] = "Event not found", |
83 | [ ERROR_INDEX(LTTNG_ERR_CONNECT_FAIL) ] = "Unable to connect to Unix socket", | |
84 | [ ERROR_INDEX(LTTNG_ERR_EPERM) ] = "Permission denied", | |
85 | [ ERROR_INDEX(LTTNG_ERR_KERN_NA) ] = "Kernel tracer not available", | |
86 | [ ERROR_INDEX(LTTNG_ERR_KERN_VERSION) ] = "Kernel tracer version is not compatible", | |
87 | [ ERROR_INDEX(LTTNG_ERR_KERN_EVENT_EXIST) ] = "Kernel event already exists", | |
88 | [ ERROR_INDEX(LTTNG_ERR_KERN_SESS_FAIL) ] = "Kernel create session failed", | |
89 | [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_EXIST) ] = "Kernel channel already exists", | |
90 | [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_FAIL) ] = "Kernel create channel failed", | |
91 | [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_NOT_FOUND) ] = "Kernel channel not found", | |
92 | [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_DISABLE_FAIL) ] = "Disable kernel channel failed", | |
93 | [ ERROR_INDEX(LTTNG_ERR_KERN_CHAN_ENABLE_FAIL) ] = "Enable kernel channel failed", | |
94 | [ ERROR_INDEX(LTTNG_ERR_KERN_CONTEXT_FAIL) ] = "Add kernel context failed", | |
95 | [ ERROR_INDEX(LTTNG_ERR_KERN_ENABLE_FAIL) ] = "Enable kernel event failed", | |
96 | [ ERROR_INDEX(LTTNG_ERR_KERN_DISABLE_FAIL) ] = "Disable kernel event failed", | |
97 | [ ERROR_INDEX(LTTNG_ERR_KERN_META_FAIL) ] = "Opening metadata failed", | |
98 | [ ERROR_INDEX(LTTNG_ERR_KERN_START_FAIL) ] = "Starting kernel trace failed", | |
552c8777 | 99 | [ ERROR_INDEX(LTTNG_ERR_KERN_STOP_FAIL) ] = "Stopping kernel trace failed", |
f73fabfd DG |
100 | [ ERROR_INDEX(LTTNG_ERR_KERN_CONSUMER_FAIL) ] = "Kernel consumer start failed", |
101 | [ ERROR_INDEX(LTTNG_ERR_KERN_STREAM_FAIL) ] = "Kernel create stream failed", | |
102 | [ ERROR_INDEX(LTTNG_ERR_KERN_LIST_FAIL) ] = "Listing kernel events failed", | |
103 | [ ERROR_INDEX(LTTNG_ERR_UST_CALIBRATE_FAIL) ] = "UST calibration failed", | |
104 | [ ERROR_INDEX(LTTNG_ERR_UST_SESS_FAIL) ] = "UST create session failed", | |
105 | [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_FAIL) ] = "UST create channel failed", | |
106 | [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_EXIST) ] = "UST channel already exist", | |
107 | [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_NOT_FOUND) ] = "UST channel not found", | |
108 | [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_DISABLE_FAIL) ] = "Disable UST channel failed", | |
109 | [ ERROR_INDEX(LTTNG_ERR_UST_CHAN_ENABLE_FAIL) ] = "Enable UST channel failed", | |
110 | [ ERROR_INDEX(LTTNG_ERR_UST_ENABLE_FAIL) ] = "Enable UST event failed", | |
111 | [ ERROR_INDEX(LTTNG_ERR_UST_DISABLE_FAIL) ] = "Disable UST event failed", | |
112 | [ ERROR_INDEX(LTTNG_ERR_UST_META_FAIL) ] = "Opening metadata failed", | |
113 | [ ERROR_INDEX(LTTNG_ERR_UST_START_FAIL) ] = "Starting UST trace failed", | |
552c8777 | 114 | [ ERROR_INDEX(LTTNG_ERR_UST_STOP_FAIL) ] = "Stopping UST trace failed", |
f73fabfd DG |
115 | [ ERROR_INDEX(LTTNG_ERR_UST_CONSUMER64_FAIL) ] = "64-bit UST consumer start failed", |
116 | [ ERROR_INDEX(LTTNG_ERR_UST_CONSUMER32_FAIL) ] = "32-bit UST consumer start failed", | |
117 | [ ERROR_INDEX(LTTNG_ERR_UST_STREAM_FAIL) ] = "UST create stream failed", | |
118 | [ ERROR_INDEX(LTTNG_ERR_UST_LIST_FAIL) ] = "Listing UST events failed", | |
119 | [ ERROR_INDEX(LTTNG_ERR_UST_EVENT_EXIST) ] = "UST event already exist", | |
120 | [ ERROR_INDEX(LTTNG_ERR_UST_EVENT_NOT_FOUND)] = "UST event not found", | |
121 | [ ERROR_INDEX(LTTNG_ERR_UST_CONTEXT_EXIST)] = "UST context already exist", | |
122 | [ ERROR_INDEX(LTTNG_ERR_UST_CONTEXT_INVAL)] = "UST invalid context", | |
1052de37 | 123 | [ 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.", |
b51ec5b4 | 124 | [ ERROR_INDEX(LTTNG_ERR_NO_UST) ] = "LTTng-UST tracer is not supported. Please rebuild lttng-tools with lttng-ust support enabled.", |
f73fabfd DG |
125 | [ ERROR_INDEX(LTTNG_ERR_TRACE_ALREADY_STARTED) ] = "Tracing already started", |
126 | [ ERROR_INDEX(LTTNG_ERR_TRACE_ALREADY_STOPPED) ] = "Tracing already stopped", | |
127 | [ ERROR_INDEX(LTTNG_ERR_KERN_EVENT_ENOSYS) ] = "Kernel event type not supported", | |
85076754 | 128 | [ ERROR_INDEX(LTTNG_ERR_NEED_CHANNEL_NAME) ] = "Non-default channel exists within session: channel name needs to be specified with '-c name'", |
f73fabfd DG |
129 | [ ERROR_INDEX(LTTNG_ERR_INVALID) ] = "Invalid parameter", |
130 | [ ERROR_INDEX(LTTNG_ERR_NO_USTCONSUMERD) ] = "No UST consumer detected", | |
131 | [ ERROR_INDEX(LTTNG_ERR_NO_KERNCONSUMERD) ] = "No kernel consumer detected", | |
132 | [ ERROR_INDEX(LTTNG_ERR_EVENT_EXIST_LOGLEVEL) ] = "Event already enabled with different loglevel", | |
133 | [ ERROR_INDEX(LTTNG_ERR_URL_DATA_MISS) ] = "Missing data path URL", | |
552c8777 | 134 | [ ERROR_INDEX(LTTNG_ERR_URL_CTRL_MISS) ] = "Missing control path URL", |
f73fabfd DG |
135 | [ ERROR_INDEX(LTTNG_ERR_ENABLE_CONSUMER_FAIL) ] = "Enabling consumer failed", |
136 | [ ERROR_INDEX(LTTNG_ERR_RELAYD_CONNECT_FAIL) ] = "Unable to connect to lttng-relayd", | |
137 | [ ERROR_INDEX(LTTNG_ERR_RELAYD_VERSION_FAIL) ] = "Relay daemon not compatible", | |
138 | [ ERROR_INDEX(LTTNG_ERR_FILTER_INVAL) ] = "Invalid filter bytecode", | |
139 | [ ERROR_INDEX(LTTNG_ERR_FILTER_NOMEM) ] = "Not enough memory for filter bytecode", | |
140 | [ ERROR_INDEX(LTTNG_ERR_FILTER_EXIST) ] = "Filter already exist", | |
141 | [ ERROR_INDEX(LTTNG_ERR_NO_CONSUMER) ] = "Consumer not found for tracing session", | |
2f70b271 | 142 | [ ERROR_INDEX(LTTNG_ERR_NO_SESSIOND) ] = "No session daemon is available", |
806e2684 | 143 | [ ERROR_INDEX(LTTNG_ERR_SESSION_STARTED) ] = "Session is running", |
a79d84dd | 144 | [ ERROR_INDEX(LTTNG_ERR_NOT_SUPPORTED) ] = "Operation not supported", |
5bcdda4f | 145 | [ ERROR_INDEX(LTTNG_ERR_UST_EVENT_ENABLED) ] = "UST event already enabled", |
785d2d0d DG |
146 | [ ERROR_INDEX(LTTNG_ERR_SET_URL) ] = "Error setting URL", |
147 | [ ERROR_INDEX(LTTNG_ERR_URL_EXIST) ] = "URL already exists", | |
7972aab2 DG |
148 | [ ERROR_INDEX(LTTNG_ERR_BUFFER_NOT_SUPPORTED)] = "Buffer type not supported", |
149 | [ ERROR_INDEX(LTTNG_ERR_BUFFER_TYPE_MISMATCH)] = "Buffer type mismatch for session", | |
a74934ba | 150 | [ ERROR_INDEX(LTTNG_ERR_NOMEM)] = "Not enough memory", |
6dc3064a DG |
151 | [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_OUTPUT_EXIST) ] = "Snapshot output already exists", |
152 | [ ERROR_INDEX(LTTNG_ERR_START_SESSION_ONCE) ] = "Session needs to be started once", | |
5c786ded | 153 | [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_FAIL) ] = "Snapshot record failed", |
b9dfb167 | 154 | [ ERROR_INDEX(LTTNG_ERR_CHAN_EXIST) ] = "Channel already exists", |
7badf927 | 155 | [ ERROR_INDEX(LTTNG_ERR_SNAPSHOT_NODATA) ] = "No data available in snapshot", |
cde3e505 | 156 | [ ERROR_INDEX(LTTNG_ERR_NO_CHANNEL) ] = "No channel found in the session", |
1c1c3634 | 157 | [ ERROR_INDEX(LTTNG_ERR_SESSION_INVALID_CHAR) ] = "Invalid character found in session name", |
f9b57ab2 | 158 | [ ERROR_INDEX(LTTNG_ERR_SAVE_FILE_EXIST) ] = "Session file already exists", |
a96bc65d DG |
159 | [ ERROR_INDEX(LTTNG_ERR_SAVE_IO_FAIL) ] = "IO error while writting session configuration", |
160 | [ ERROR_INDEX(LTTNG_ERR_LOAD_INVALID_CONFIG) ] = "Invalid session configuration", | |
161 | [ ERROR_INDEX(LTTNG_ERR_LOAD_IO_FAIL) ] = "IO error while reading a session configuration", | |
162 | [ ERROR_INDEX(LTTNG_ERR_LOAD_SESSION_NOENT) ] = "Session file not found", | |
68808f4e | 163 | [ ERROR_INDEX(LTTNG_ERR_MAX_SIZE_INVALID) ] = "Snapshot max size is invalid", |
c7e35b03 JR |
164 | [ ERROR_INDEX(LTTNG_ERR_MI_OUTPUT_TYPE) ] = "Invalid MI output format", |
165 | [ ERROR_INDEX(LTTNG_ERR_MI_IO_FAIL) ] = "IO error while writing MI output", | |
166 | [ ERROR_INDEX(LTTNG_ERR_MI_NOT_IMPLEMENTED) ] = "Mi feature not implemented", | |
930a2e99 | 167 | [ ERROR_INDEX(LTTNG_ERR_INVALID_EVENT_NAME) ] = "Invalid event name", |
f73fabfd DG |
168 | |
169 | /* Last element */ | |
170 | [ ERROR_INDEX(LTTNG_ERR_NR) ] = "Unknown error code" | |
171 | }; | |
172 | ||
173 | /* | |
174 | * Return ptr to string representing a human readable error code from the | |
175 | * lttng_error_code enum. | |
176 | * | |
177 | * These code MUST be negative in other to treat that as an error value. | |
178 | */ | |
90e535ef | 179 | LTTNG_HIDDEN |
f73fabfd DG |
180 | const char *error_get_str(int32_t code) |
181 | { | |
182 | code = -code; | |
183 | ||
184 | if (code < LTTNG_OK || code > LTTNG_ERR_NR) { | |
185 | code = LTTNG_ERR_NR; | |
186 | } | |
187 | ||
188 | return error_string_array[ERROR_INDEX(code)]; | |
189 | } |