X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fvm%2Fjit%2Fs390%2Fmd-trap.h;h=3d3e4afe8b505c06dd9b34d9f4ded65ffad9de0d;hb=aed95b0ea70495483786dde13566ea05c3869dee;hp=a5e05a0716e82606a380dc0f3637eff78fd315e9;hpb=755791284a9ca3edc1d3be1c18a89973c2355d64;p=cacao.git

diff --git a/src/vm/jit/s390/md-trap.h b/src/vm/jit/s390/md-trap.h
index a5e05a071..3d3e4afe8 100644
--- a/src/vm/jit/s390/md-trap.h
+++ b/src/vm/jit/s390/md-trap.h
@@ -1,6 +1,6 @@
 /* src/vm/jit/s390/md-trap.h - s390 hardware traps
 
-   Copyright (C) 2008
+   Copyright (C) 2008, 2010
    CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
 
    This file is part of CACAO.
@@ -50,6 +50,18 @@ enum {
 	TRAP_COUNTDOWN                      = 8
 };
 
+
+/**
+ * Macro to fixup a compiler stub. The XPC is the RA minus 2,
+ * because the RA points to the instruction after the call.
+ */
+#define MD_TRAP_COMPILER_FIXUP(xpc, ra, sp, pv) \
+	do { \
+		(pv) = (xpc); \
+		(xpc) = (void*) (((uintptr_t) (ra)) - 2); \
+	} while(0)
+
+
 #endif /* _MD_TRAP_H */