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-rw-r--r--thread_win32.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/thread_win32.c b/thread_win32.c
index 46764f0..d9f006a 100644
--- a/thread_win32.c
+++ b/thread_win32.c
@@ -597,4 +597,17 @@ native_reset_timer_thread(void)
}
}
+#ifdef RUBY_ALLOCA_CHKSTK
+void
+ruby_alloca_chkstk(size_t len, void *sp)
+{
+ if (ruby_stack_length(NULL) * sizeof(VALUE) >= len) {
+ rb_thread_t *th = GET_THREAD();
+ if (!rb_thread_raised_p(th, RAISED_STACKOVERFLOW)) {
+ rb_thread_raised_set(th, RAISED_STACKOVERFLOW);
+ rb_exc_raise(sysstack_error);
+ }
+ }
+}
+#endif
#endif /* THREAD_SYSTEM_DEPENDENT_IMPLEMENTATION */