diff options
Diffstat (limited to 'nptl/pthread_rwlock_wrlock.c')
| -rw-r--r-- | nptl/pthread_rwlock_wrlock.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/nptl/pthread_rwlock_wrlock.c b/nptl/pthread_rwlock_wrlock.c index a645487877..6d8fb93c3b 100644 --- a/nptl/pthread_rwlock_wrlock.c +++ b/nptl/pthread_rwlock_wrlock.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003,2007,2011 Free Software Foundation, Inc. +/* Copyright (C) 2003-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003. @@ -21,6 +21,7 @@ #include <lowlevellock.h> #include <pthread.h> #include <pthreadP.h> +#include <stap-probe.h> /* Acquire write lock for RWLOCK. */ @@ -30,6 +31,8 @@ __pthread_rwlock_wrlock (rwlock) { int result = 0; + LIBC_PROBE (wrlock_entry, 1, rwlock); + /* Make sure we are alone. */ lll_lock (rwlock->__data.__lock, rwlock->__data.__shared); @@ -40,6 +43,8 @@ __pthread_rwlock_wrlock (rwlock) { /* Mark self as writer. */ rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid); + + LIBC_PROBE (wrlock_acquire_write, 1, rwlock); break; } |