--- src/corelib/arch/sparc/qatomic64.s.orig	2010-06-08 11:28:01.000000000 +0000
+++ src/corelib/arch/sparc/qatomic64.s	2010-06-08 11:32:38.000000000 +0000
@@ -285,3 +285,25 @@
 	retl
 	mov %o3,%o0
 	.size q_atomic_fetch_and_add_release_ptr,.-q_atomic_fetch_and_add_release_ptr
+
+        .align 4
+        .type q_atomic_trylock_ptr,#function
+        .global q_atomic_trylock_ptr
+q_atomic_trylock_ptr:
+        mov -1, %o2
+        swap [%o0], %o2
+        retl
+        mov %o2, %o0
+        .size q_atomic_trylock_ptr,.-q_atomic_trylock_ptr
+
+        .align 4
+        .type q_atomic_trylock_int,#function
+        .global q_atomic_trylock_int
+q_atomic_trylock_int:
+        sethi %hi(-2147483648),%o2
+        swap [%o0],%o2
+        retl
+        mov %o2,%o0
+        .size q_atomic_trylock_int,.-q_atomic_trylock_int
+
+