[lttng-ust.git] / liblttng-ust / tracef.c

/*
 * Copyright (C) 2013-2014  Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#define _GNU_SOURCE
#define _LGPL_SOURCE
#include <stdio.h>

#define TRACEPOINT_CREATE_PROBES
#define TRACEPOINT_DEFINE
#include "lttng-ust-tracef-provider.h"

void _lttng_ust_tracef(const char *fmt, ...)
{
	va_list ap;
	char *msg;
	int len;

	va_start(ap, fmt);
	len = vasprintf(&msg, fmt, ap);
	/* len does not include the final \0 */
	if (len < 0)
		goto end;
	__tracepoint_cb_lttng_ust_tracef___event(msg, len,
		__builtin_return_address(0));
	free(msg);
end:
	va_end(ap);
}
Commit	Line	Data
641c659a MD	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;
5dadb547 MD	42	__tracepoint_cb_lttng_ust_tracef___event(msg, len,
5dadb547 MD	43	__builtin_return_address(0));
641c659a MD	44	free(msg);
	45	end:
	46	va_end(ap);
	47	}