2 * Copyright (C) 2013 Mentor Graphics
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 * Do _not_ define _LGPL_SOURCE because we don't want to create a
22 * circular dependency loop between this malloc wrapper, liburcu and
25 #include <lttng/ust-dlfcn.h>
29 #define TRACEPOINT_DEFINE
30 #define TRACEPOINT_CREATE_PROBES
31 #define TP_IP_PARAM ip
32 #include "ust_pthread.h"
34 static __thread
int thread_in_trace
;
36 int pthread_mutex_lock(pthread_mutex_t
*mutex
)
38 static int (*mutex_lock
)(pthread_mutex_t
*);
42 mutex_lock
= dlsym(RTLD_NEXT
, "pthread_mutex_lock");
44 if (thread_in_trace
) {
47 fprintf(stderr
, "unable to initialize pthread wrapper library.\n");
51 if (thread_in_trace
) {
52 return mutex_lock(mutex
);
56 tracepoint(lttng_ust_pthread
, pthread_mutex_lock_req
, mutex
,
57 LTTNG_UST_CALLER_IP());
58 retval
= mutex_lock(mutex
);
59 tracepoint(lttng_ust_pthread
, pthread_mutex_lock_acq
, mutex
,
60 retval
, LTTNG_UST_CALLER_IP());
65 int pthread_mutex_trylock(pthread_mutex_t
*mutex
)
67 static int (*mutex_trylock
)(pthread_mutex_t
*);
71 mutex_trylock
= dlsym(RTLD_NEXT
, "pthread_mutex_trylock");
73 if (thread_in_trace
) {
76 fprintf(stderr
, "unable to initialize pthread wrapper library.\n");
80 if (thread_in_trace
) {
81 return mutex_trylock(mutex
);
85 retval
= mutex_trylock(mutex
);
86 tracepoint(lttng_ust_pthread
, pthread_mutex_trylock
, mutex
,
87 retval
, LTTNG_UST_CALLER_IP());
92 int pthread_mutex_unlock(pthread_mutex_t
*mutex
)
94 static int (*mutex_unlock
)(pthread_mutex_t
*);
98 mutex_unlock
= dlsym(RTLD_NEXT
, "pthread_mutex_unlock");
100 if (thread_in_trace
) {
103 fprintf(stderr
, "unable to initialize pthread wrapper library.\n");
107 if (thread_in_trace
) {
108 return mutex_unlock(mutex
);
112 retval
= mutex_unlock(mutex
);
113 tracepoint(lttng_ust_pthread
, pthread_mutex_unlock
, mutex
,
114 retval
, LTTNG_UST_CALLER_IP());
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