From 509f2bfd938f2f1e69c2f27821f5b0ab8295b05b Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 16 May 2020 21:46:41 +0900
Subject: Add a new target `clang-asan` to use LLVM's address sanitizer.

---
 target/clang-asan.rb | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 target/clang-asan.rb

diff --git a/target/clang-asan.rb b/target/clang-asan.rb
new file mode 100644
index 000000000..e693332c2
--- /dev/null
+++ b/target/clang-asan.rb
@@ -0,0 +1,21 @@
+MRuby::Build.new do |conf|
+  toolchain :clang
+  # include the GEM box
+  conf.gembox 'default'
+
+  # C compiler settings
+  conf.cc do |cc|
+    cc.flags << "-fsanitize=address,undefined"
+    cc.include_paths = ["#{root}/include"]
+  end
+
+  # Linker settings
+  conf.linker do |linker|
+    linker.flags << "-fsanitize=address,undefined"
+  end
+
+  # Turn on `enable_debug` for better debugging
+  enable_debug
+  conf.enable_bintest
+  conf.enable_test
+end
-- 
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