akr	2007-12-17 13:47:24 +0900 (Mon, 17 Dec 2007)

  New Revision: 14255

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/gc.c

  Log:
    * gc.c (stack_end_address): use local variable address instead of
      __builtin_frame_address(0) to avoid SEGV on SunOS 5.11 on x86 with 
      gcc (GCC) 3.4.3 (csl-sol210-3_4-20050802).


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ChangeLog?r1=14255&r2=14254
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/gc.c?r1=14255&r2=14254

Index: ruby_1_8/ChangeLog
===================================================================
--- ruby_1_8/ChangeLog	(revision 14254)
+++ ruby_1_8/ChangeLog	(revision 14255)
@@ -1,3 +1,9 @@
+Mon Dec 17 13:43:15 2007  Tanaka Akira  <akr@f...>
+
+	* gc.c (stack_end_address): use local variable address instead of
+	  __builtin_frame_address(0) to avoid SEGV on SunOS 5.11 on x86 with 
+	  gcc (GCC) 3.4.3 (csl-sol210-3_4-20050802).
+
 Mon Dec 17 12:21:25 2007  Nobuyoshi Nakada  <nobu@r...>
 
 	* Makefile.in (RUNRUBY): added RUNRUBYOPT.
Index: ruby_1_8/gc.c
===================================================================
--- ruby_1_8/gc.c	(revision 14254)
+++ ruby_1_8/gc.c	(revision 14255)
@@ -438,12 +438,13 @@
 #  if ( __GNUC__ == 3 && __GNUC_MINOR__ > 0 ) || __GNUC__ > 3
 __attribute__ ((noinline))
 #  endif
-static VALUE *
-stack_end_address(void)
+static void
+stack_end_address(VALUE **stack_end_p)
 {
-    return (VALUE *)__builtin_frame_address(0);
+    VALUE stack_end;
+    *stack_end_p = &stack_end;
 }
-#  define  SET_STACK_END    VALUE *stack_end = stack_end_address()
+#  define  SET_STACK_END    VALUE *stack_end; stack_end_address(&stack_end)
 # else
 #  define  SET_STACK_END    VALUE *stack_end = alloca(1)
 # endif

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