X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Frts%2FOSThreads.h;h=571c90ea6de088141dc66e5f2d77559ef92e88b9;hb=9e6162f9d0102d1f5738bf78258b24ea5a647ea4;hp=eb5d9e792524436e9eb0d232960091379f18f46e;hpb=05abfa38be95d3042b09738408ba95beac50418d;p=ghc-hetmet.git

diff --git a/ghc/rts/OSThreads.h b/ghc/rts/OSThreads.h
index eb5d9e7..571c90e 100644
--- a/ghc/rts/OSThreads.h
+++ b/ghc/rts/OSThreads.h
@@ -20,8 +20,13 @@ typedef pthread_t       OSThreadId;
 #define INIT_MUTEX_VAR      PTHREAD_MUTEX_INITIALIZER
 #define INIT_COND_VAR       PTHREAD_COND_INITIALIZER
 
+#ifdef LOCK_DEBUG
+#define ACQUIRE_LOCK(mutex) fprintf(stderr, "ACQUIRE_LOCK(0x%p) %s %d\n", mutex,__FILE__,__LINE__); fflush(stderr); pthread_mutex_lock(mutex)
+#define RELEASE_LOCK(mutex) fprintf(stderr, "RELEASE_LOCK(0x%p) %s %d\n", mutex,__FILE__,__LINE__); fflush(stderr); pthread_mutex_unlock(mutex)
+#else
 #define ACQUIRE_LOCK(mutex) pthread_mutex_lock(mutex)
 #define RELEASE_LOCK(mutex) pthread_mutex_unlock(mutex)
+#endif
 
 # elif defined(HAVE_WINDOWS_H)
 #include <windows.h>