[pypy-commit] stmgc marker: Make the stack markers odd (seems more useful for pypy)

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: marker
Changeset: r1171:caccd9ab4c7c
Date: 2014-04-20 10:05 +0200
http://bitbucket.org/pypy/stmgc/changeset/caccd9ab4c7c/

Log:	Make the stack markers odd (seems more useful for pypy)

diff --git a/c7/stmgc.h b/c7/stmgc.h
--- a/c7/stmgc.h
+++ b/c7/stmgc.h
@@ -271,8 +271,8 @@
 #define STM_PUSH_ROOT(tl, p)   ((tl).shadowstack++->ss = (object_t *)(p))
 #define STM_POP_ROOT(tl, p)    ((p) = (typeof(p))((--(tl).shadowstack)->ss))
 #define STM_POP_ROOT_RET(tl)   ((--(tl).shadowstack)->ss)
-#define STM_STACK_MARKER_NEW   2
-#define STM_STACK_MARKER_OLD   6
+#define STM_STACK_MARKER_NEW  (-41)
+#define STM_STACK_MARKER_OLD  (-43)
 
 
 /* Every thread needs to have a corresponding stm_thread_local_t