* vm_core.h, eval_intern.h (CHECK_STACK_OVERFLOW): move

  CHECK_STACK_OVERFLOW() to vm_core.h and rename to
  CHECK_VM_STACK_OVERFLOW().
  This change is only move and rename.
* tool/instruction.rb: catch up above changes.
* vm.c, vm_insnhelper.c: ditto.
* vm_insnhelper.c (vm_stackoverflow): add a function to unify
  raising vm stackoverflow exception.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38594 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/vm_core.h b/vm_core.h
index 91b8ea7bf0..48f887c03a 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -853,6 +853,12 @@ int rb_autoloading_value(VALUE mod, ID id, VALUE* value);
 
 #define sysstack_error GET_VM()->special_exceptions[ruby_error_sysstack]
 
+#define CHECK_VM_STACK_OVERFLOW(cfp, margin) do \
+  if ((VALUE *)((char *)(((VALUE *)(cfp)->sp) + (margin)) + sizeof(rb_control_frame_t)) >= ((VALUE *)(cfp))) { \
+      vm_stackoverflow(); \
+  } \
+while (0)
+
 /* for thread */
 
 #if RUBY_VM_THREAD_MODEL == 2