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
20 #include <lttng/ust-dlfcn.h>
23 #define TRACEPOINT_DEFINE
24 #define TRACEPOINT_CREATE_PROBES
25 #define TP_IP_PARAM ip
26 #include "ust_pthread.h"
28 static __thread
int thread_in_trace
;
30 int pthread_mutex_lock(pthread_mutex_t
*mutex
)
32 static int (*mutex_lock
)(pthread_mutex_t
*);
36 mutex_lock
= dlsym(RTLD_NEXT
, "pthread_mutex_lock");
38 if (thread_in_trace
) {
41 fprintf(stderr
, "unable to initialize pthread wrapper library.\n");
45 if (thread_in_trace
) {
46 return mutex_lock(mutex
);
50 tracepoint(lttng_ust_pthread
, pthread_mutex_lock_req
, mutex
,
51 __builtin_return_address(0));
52 retval
= mutex_lock(mutex
);
53 tracepoint(lttng_ust_pthread
, pthread_mutex_lock_acq
, mutex
,
54 retval
, __builtin_return_address(0));
59 int pthread_mutex_trylock(pthread_mutex_t
*mutex
)
61 static int (*mutex_trylock
)(pthread_mutex_t
*);
65 mutex_trylock
= dlsym(RTLD_NEXT
, "pthread_mutex_trylock");
67 if (thread_in_trace
) {
70 fprintf(stderr
, "unable to initialize pthread wrapper library.\n");
74 if (thread_in_trace
) {
75 return mutex_trylock(mutex
);
79 retval
= mutex_trylock(mutex
);
80 tracepoint(lttng_ust_pthread
, pthread_mutex_trylock
, mutex
,
81 retval
, __builtin_return_address(0));
86 int pthread_mutex_unlock(pthread_mutex_t
*mutex
)
88 static int (*mutex_unlock
)(pthread_mutex_t
*);
92 mutex_unlock
= dlsym(RTLD_NEXT
, "pthread_mutex_unlock");
94 if (thread_in_trace
) {
97 fprintf(stderr
, "unable to initialize pthread wrapper library.\n");
101 if (thread_in_trace
) {
102 return mutex_unlock(mutex
);
106 retval
= mutex_unlock(mutex
);
107 tracepoint(lttng_ust_pthread
, pthread_mutex_unlock
, mutex
,
108 retval
, __builtin_return_address(0));
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