From d1ccc3d33adb191e6728cd136ef6596d98e2a716 Mon Sep 17 00:00:00 2001
From: Derek Schuff <dschuff@chromium.org>
Date: Fri, 30 Jun 2017 13:28:42 -0700
Subject: Use sanitizer runtime to print pretty stack traces on unreachable
 (#1079)

For even better debugging support.
---
 src/compiler-support.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/compiler-support.h b/src/compiler-support.h
index f2e58ff5e..f105271b5 100644
--- a/src/compiler-support.h
+++ b/src/compiler-support.h
@@ -31,6 +31,9 @@
 # define WASM_UNREACHABLE() __builtin_unreachable()
 #elif defined(_MSC_VER)
 # define WASM_UNREACHABLE() __assume(false)
+#elif __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
+# include "sanitizer/common_interface_defs.h"
+# define WASM_UNREACHABLE() do { __sanitizer_print_stack_trace(); __builtin_trap(); } while (0)
 #else
 # include <stdlib.h>
 # define WASM_UNREACHABLE() abort()
-- 
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