From c16831bff746a443f6cfdc111b61c549f0aa0846 Mon Sep 17 00:00:00 2001
From: yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 30 Nov 2008 09:24:41 +0000
Subject: merges r20372-r20375 and r20380 from trunk into ruby_1_9_1. *
 signal.c (register_sigaltstack): minimum size is insufficient for   method
 calls.

* signal.c (sigsegv): handles stack overflow if possible.

* thread.c (ruby_thread_stack_overflow): helper function to raise
  sysstack_error.

* thread_pthread.c (ruby_stack_overflowed_p): checks for stack
  overflow.

* signal.c (ruby_sigaction_t): added.

* signal.c (register_sigaltstack): stores alt stack for debug
  purpose.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@20422 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 thread.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'thread.c')

diff --git a/thread.c b/thread.c
index b9f7a28cd8..25cdde28c2 100644
--- a/thread.c
+++ b/thread.c
@@ -1184,6 +1184,14 @@ rb_thread_signal_exit(void *thptr)
     rb_thread_raise(2, argv, th->vm->main_thread);
 }
 
+void
+ruby_thread_stack_overflow(rb_thread_t *th)
+{
+    th->errinfo = sysstack_error;
+    th->raised_flag = 0;
+    TH_JUMP_TAG(th, TAG_RAISE);
+}
+
 int
 rb_thread_set_raised(rb_thread_t *th)
 {
-- 
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