| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright (C) 2013-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #define _LGPL_SOURCE |
| 8 | #include <stdio.h> |
| 9 | #include "common/macros.h" |
| 10 | |
| 11 | #define TRACEPOINT_CREATE_PROBES |
| 12 | #define TRACEPOINT_DEFINE |
| 13 | #include "lttng-ust-tracef-provider.h" |
| 14 | |
| 15 | static inline |
| 16 | void __lttng_ust_vtracef(const char *fmt, va_list ap) |
| 17 | __attribute__((always_inline, format(printf, 1, 0))); |
| 18 | static inline |
| 19 | void __lttng_ust_vtracef(const char *fmt, va_list ap) |
| 20 | { |
| 21 | char *msg; |
| 22 | const int len = vasprintf(&msg, fmt, ap); |
| 23 | |
| 24 | /* len does not include the final \0 */ |
| 25 | if (len < 0) |
| 26 | goto end; |
| 27 | lttng_ust_tracepoint_cb_lttng_ust_tracef___event(msg, len, |
| 28 | LTTNG_UST_CALLER_IP()); |
| 29 | free(msg); |
| 30 | end: |
| 31 | return; |
| 32 | } |
| 33 | |
| 34 | /* |
| 35 | * FIXME: We should include <lttng/tracef.h> for the declarations here, but it |
| 36 | * fails with tracepoint magic above my paygrade. |
| 37 | */ |
| 38 | |
| 39 | void _lttng_ust_vtracef(const char *fmt, va_list ap) |
| 40 | __attribute__((format(printf, 1, 0))); |
| 41 | void _lttng_ust_vtracef(const char *fmt, va_list ap) |
| 42 | { |
| 43 | __lttng_ust_vtracef(fmt, ap); |
| 44 | } |
| 45 | |
| 46 | void _lttng_ust_tracef(const char *fmt, ...) |
| 47 | __attribute__((format(printf, 1, 2))); |
| 48 | void _lttng_ust_tracef(const char *fmt, ...) |
| 49 | { |
| 50 | va_list ap; |
| 51 | |
| 52 | va_start(ap, fmt); |
| 53 | __lttng_ust_vtracef(fmt, ap); |
| 54 | va_end(ap); |
| 55 | } |