From 3343feeebf5f3f7f3219eadab1d93e11b5ba9f6a Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 15 May 2014 08:32:55 +0000
Subject: Handle machine stack overflow on mingw

* thread_win32.c (rb_w32_stack_overflow_handler): use Structured
  Exception Handling by Addvectoredexceptionhandler() for machine
  stack overflow on mingw.
  This would be equivalent to the handling using __try and __exept
  on mswin introduced by r43748.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 thread_win32.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'thread_win32.c')

diff --git a/thread_win32.c b/thread_win32.c
index db00a736f6..feadede50d 100644
--- a/thread_win32.c
+++ b/thread_win32.c
@@ -754,6 +754,18 @@ ruby_stack_overflowed_p(const rb_thread_t *th, const void *addr)
     return rb_thread_raised_p(th, RAISED_STACKOVERFLOW);
 }
 
+#if defined(__MINGW32__)
+LONG WINAPI
+rb_w32_stack_overflow_handler(struct _EXCEPTION_POINTERS *exception)
+{
+    if (exception->ExceptionRecord->ExceptionCode == EXCEPTION_STACK_OVERFLOW) {
+	rb_thread_raised_set(GET_THREAD(), RAISED_STACKOVERFLOW);
+	raise(SIGSEGV);
+    }
+    return EXCEPTION_CONTINUE_SEARCH;
+}
+#endif
+
 #ifdef RUBY_ALLOCA_CHKSTK
 void
 ruby_alloca_chkstk(size_t len, void *sp)
-- 
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