2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2 only,
6 * as published by the Free Software Foundation.
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
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include <urcu/tls-compat.h>
27 #include <common/compat/time.h>
30 #error "lttng-tools error.h needs _GNU_SOURCE"
33 #include <lttng/lttng-error.h>
34 #include <common/compat/tid.h>
36 /* Avoid conflict with Solaris <sys/regset.h> */
37 #if defined(ERR) && defined(__sun__)
41 /* Stringify the expansion of a define */
42 #define XSTR(d) STR(d)
46 * Contains the string of the log entry time. This is used as a thread local
47 * storage so we don't race between thread and also avoid memory allocation
48 * every time a log is fired.
51 /* Format: 00:00:00.000000000 plus NULL byte. */
54 extern DECLARE_URCU_TLS(struct log_time
, error_log_time
);
56 extern int lttng_opt_quiet
;
57 extern int lttng_opt_verbose
;
58 extern int lttng_opt_mi
;
61 enum lttng_error_level
{
71 static inline bool __lttng_print_check_opt(enum lttng_error_level type
)
73 /* lttng_opt_mi and lttng_opt_quiet. */
86 if (lttng_opt_quiet
) {
91 /* lttng_opt_verbose */
94 if (lttng_opt_verbose
< 3) {
99 if (lttng_opt_verbose
< 2) {
104 if (lttng_opt_verbose
< 1) {
118 void lttng_abort_on_error(void);
120 static inline void __lttng_print_check_abort(enum lttng_error_level type
)
131 lttng_abort_on_error();
136 * Macro for printing message depending on command line option and verbosity.
139 * We use lttng_opt_mi to suppress all normal msg to stdout. We don't
140 * want any nested msg to show up when printing mi to stdout(if it's the case).
141 * All warnings and errors should be printed to stderr as normal.
143 #define __lttng_print(type, fmt, args...) \
145 if (__lttng_print_check_opt(type)) { \
146 fprintf((type) == PRINT_MSG ? stdout : stderr, fmt, ## args); \
148 __lttng_print_check_abort(type); \
151 /* Three level of debug. Use -v, -vv or -vvv for the levels */
152 #define _ERRMSG(msg, type, fmt, args...) __lttng_print(type, msg \
153 " - %s [%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", \
154 log_add_time(), (long) getpid(), (long) gettid(), ## args, __func__)
156 #define _ERRMSG_NO_LOC(msg, type, fmt, args...) __lttng_print(type, msg \
157 " - %s [%ld/%ld]: " fmt "\n", \
158 log_add_time(), (long) getpid(), (long) gettid(), ## args)
160 #define MSG(fmt, args...) \
161 __lttng_print(PRINT_MSG, fmt "\n", ## args)
162 #define _MSG(fmt, args...) \
163 __lttng_print(PRINT_MSG, fmt, ## args)
164 #define ERR(fmt, args...) \
165 __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
166 #define WARN(fmt, args...) \
167 __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
169 #define BUG(fmt, args...) _ERRMSG("BUG", PRINT_BUG, fmt, ## args)
171 #define DBG(fmt, args...) _ERRMSG("DEBUG1", PRINT_DBG, fmt, ## args)
172 #define DBG_NO_LOC(fmt, args...) _ERRMSG_NO_LOC("DEBUG1", PRINT_DBG, fmt, ## args)
173 #define DBG2(fmt, args...) _ERRMSG("DEBUG2", PRINT_DBG2, fmt, ## args)
174 #define DBG3(fmt, args...) _ERRMSG("DEBUG3", PRINT_DBG3, fmt, ## args)
175 #define LOG(type, fmt, args...) \
182 WARN(fmt, ## args); \
194 DBG2(fmt, ## args); \
197 DBG3(fmt, ## args); \
204 #define _PERROR(fmt, args...) _ERRMSG("PERROR", PRINT_ERR, fmt, ## args)
206 #if !defined(__GLIBC__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
209 * Version using XSI strerror_r.
211 #define PERROR(call, args...) \
214 strerror_r(errno, buf, sizeof(buf)); \
215 _PERROR(call ": %s", ## args, buf); \
219 * Version using GNU strerror_r, for linux with appropriate defines.
221 #define PERROR(call, args...) \
225 buf = strerror_r(errno, tmp, sizeof(tmp)); \
226 _PERROR(call ": %s", ## args, buf); \
230 const char *error_get_str(int32_t code
);
233 * Function that format the time and return the reference of log_time.str to
234 * the caller. On error, an empty string is returned thus no time will be
235 * printed in the log.
237 const char *log_add_time();
239 #endif /* _ERROR_H */
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