| 1 | /* |
| 2 | * Copyright (C) 2013-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 5 | * of this software and associated documentation files (the "Software"), to deal |
| 6 | * in the Software without restriction, including without limitation the rights |
| 7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 8 | * copies of the Software, and to permit persons to whom the Software is |
| 9 | * furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 20 | * SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #define _GNU_SOURCE |
| 24 | #define _LGPL_SOURCE |
| 25 | #include <stdio.h> |
| 26 | |
| 27 | #define TRACEPOINT_CREATE_PROBES |
| 28 | #define TRACEPOINT_DEFINE |
| 29 | #include "lttng-ust-tracef-provider.h" |
| 30 | |
| 31 | void _lttng_ust_tracef(const char *fmt, ...) |
| 32 | { |
| 33 | va_list ap; |
| 34 | char *msg; |
| 35 | int len; |
| 36 | |
| 37 | va_start(ap, fmt); |
| 38 | len = vasprintf(&msg, fmt, ap); |
| 39 | /* len does not include the final \0 */ |
| 40 | if (len < 0) |
| 41 | goto end; |
| 42 | __tracepoint_cb_lttng_ust_tracef___event(msg, len, |
| 43 | __builtin_return_address(0)); |
| 44 | free(msg); |
| 45 | end: |
| 46 | va_end(ap); |
| 47 | } |