* eval.c (eval): fix to check stack overflow.

* eval_intern.h, vm.h: move CHECK_STACK_OVERFLOW() macro.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13521 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Wed Sep 26 19:36:26 2007  Koichi Sasada  <[email protected]>
+
+	* eval.c (eval): fix to check stack overflow.
+
+	* eval_intern.h, vm.h: move CHECK_STACK_OVERFLOW() macro.
+
 Wed Sep 26 19:27:11 2007  Koichi Sasada  <[email protected]>
 
 	* insnhelper.ci (vm_throw): fix to move increment point.

eval.c

@@ -1735,6 +1735,7 @@ eval(VALUE self, VALUE src, VALUE scope, const char *file, int line)
 	}
 
 	/* kick */
+	CHECK_STACK_OVERFLOW(th->cfp, iseq->stack_max);
 	result = vm_eval_body(th);
     }
     POP_TAG();

eval_intern.h

@@ -186,6 +186,12 @@ char *strrchr _((const char *, const char));
   ruby_cref()->nd_visi = (f); \
 }
 
+#define CHECK_STACK_OVERFLOW(cfp, margin) do \
+  if (((VALUE *)(cfp)->sp) + (margin) >= ((VALUE *)cfp)) { \
+      rb_exc_raise(sysstack_error); \
+  } \
+while (0)
+
 void rb_thread_cleanup _((void));
 void rb_thread_wait_other_threads _((void));
 

vm.h

@@ -214,12 +214,6 @@ default:                        \
   ((rb_control_frame_t *)(th->stack + th->stack_size) - (rb_control_frame_t *)(cfp))
 #define VM_SP_CNT(th, sp) ((sp) - (th)->stack)
 
-#define CHECK_STACK_OVERFLOW(cfp, margin) do \
-  if (((VALUE *)(cfp)->sp) + (margin) >= ((VALUE *)cfp)) { \
-      rb_exc_raise(sysstack_error); \
-  } \
-while (0)
-
 /*
   env{
     env[0] // special (block or prev env)