prevent stack overflow

* gc.c: enable PREVENT_STACK_OVERFLOW.

* vm.c (invoke_iseq_block_from_c): prevent stack overflow.

* vm_eval.c (stack_check): raise preallocated exception instance.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/vm.c b/vm.c
index ea3cf6da3f..1da03c4566 100644
--- a/vm.c
+++ b/vm.c
@@ -1018,6 +1018,7 @@ invoke_iseq_block_from_c(rb_thread_t *th, const struct rb_captured_block *captur
     VALUE *sp = cfp->sp;
     const rb_callable_method_entry_t *me = th->passed_bmethod_me;
     th->passed_bmethod_me = NULL;
+    stack_check(th);
 
     CHECK_VM_STACK_OVERFLOW(cfp, argc);
     cfp->sp = sp + argc;