tarui	2012-12-02 17:56:27 +0900 (Sun, 02 Dec 2012)

  New Revision: 38142

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=38142

  Log:
    revert r38141 for stack problem

  Modified files:
    trunk/ChangeLog
    trunk/thread.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 38141)
+++ ChangeLog	(revision 38142)
@@ -1,8 +1,3 @@
-Sun Dec  2 17:43:04 2012  Masaya Tarui  <tarui@r...>
-
-        * thread.c (RB_GC_SAVE_MACHINE_CONTEXT, rb_gc_save_machine_context):
-	  Don't set machine_regs and machine_stack_end with a different scope.
-	  
 Sun Dec  2 16:48:00 2012  Zachary Scott  <zachary@z...>
 
 	* lib/weakref.rb (rdoc): Clean up usage, add example,
Index: thread.c
===================================================================
--- thread.c	(revision 38141)
+++ thread.c	(revision 38142)
@@ -99,7 +99,11 @@
 					rb_unblock_function_t *ubf, void *arg, int fail_if_interrupted);
 static inline void blocking_region_end(rb_thread_t *th, struct rb_blocking_region_buffer *region);
 
-#define RB_GC_SAVE_MACHINE_CONTEXT(th) rb_gc_save_machine_context(th)
+#define RB_GC_SAVE_MACHINE_CONTEXT(th) \
+  do { \
+    rb_gc_save_machine_context(th); \
+    SET_MACHINE_STACK_END(&(th)->machine_stack_end); \
+  } while (0)
 
 #define GVL_UNLOCK_BEGIN() do { \
   rb_thread_t *_th_stored = GET_THREAD(); \
@@ -3615,7 +3619,6 @@
     th->machine_register_stack_end = rb_ia64_bsp();
 #endif
     setjmp(th->machine_regs);
-    SET_MACHINE_STACK_END(&th->machine_stack_end);
 }
 
 /*

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