nobu	2012-06-10 17:54:38 +0900 (Sun, 10 Jun 2012)

  New Revision: 36015

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=36015

  Log:
    gc.h: IS_STACK_DIR_UPPER
    
    * gc.h (IS_STACK_DIR_UPPER): utility macro.

  Modified files:
    trunk/ChangeLog
    trunk/gc.h
    trunk/thread_pthread.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 36014)
+++ ChangeLog	(revision 36015)
@@ -1,5 +1,7 @@
-Sun Jun 10 17:54:31 2012  Nobuyoshi Nakada  <nobu@r...>
+Sun Jun 10 17:54:36 2012  Nobuyoshi Nakada  <nobu@r...>
 
+	* gc.h (IS_STACK_DIR_UPPER): utility macro.
+
 	* thread_pthread.c (get_stack): seems stack size does not include
 	  guard size on Mac OS X.
 
Index: thread_pthread.c
===================================================================
--- thread_pthread.c	(revision 36014)
+++ thread_pthread.c	(revision 36015)
@@ -1342,7 +1342,7 @@
     }
     size /= 5;
     if (size > water_mark) size = water_mark;
-    if (STACK_DIR_UPPER(1, 0)) {
+    if (IS_STACK_DIR_UPPER()) {
 	if (size > ~(size_t)base+1) size = ~(size_t)base+1;
 	if (addr > base && addr <= (void *)((char *)base + size)) return 1;
     }
Index: gc.h
===================================================================
--- gc.h	(revision 36014)
+++ gc.h	(revision 36015)
@@ -81,6 +81,7 @@
 #define STACK_GROW_DIR_DETECTION VALUE stack_grow_dir_detection
 #define STACK_DIR_UPPER(a,b) STACK_UPPER(&stack_grow_dir_detection, (a), (b))
 #endif
+#define IS_STACK_DIR_UPPER() STACK_DIR_UPPER(1,0)
 
 #if defined __GNUC__ && __GNUC__ >= 4
 #pragma GCC visibility push(default)

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