* 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).


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@14255 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 11 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index b7d5574eff..db7dd1b854 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Dec 17 13:43:15 2007  Tanaka Akira  <akr@fsij.org>
+
+	* 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@ruby-lang.org>
 
 	* Makefile.in (RUNRUBY): added RUNRUBYOPT.
diff --git a/gc.c b/gc.c
index 4298a8acf1..a04804902a 100644
--- a/gc.c
+++ b/gc.c
@@ -438,12 +438,13 @@ static unsigned int STACK_LEVEL_MAX = 655300;
 #  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