From: Vitaly Buka <vitalybuka@google.com>
Date: Thu, 18 Aug 2022 16:57:56 +0000 (-0700)
Subject: [NFC][libc] Detect HWASAN support macro
X-Git-Tag: upstream/17.0.6~36129
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4e5d64e83e9c051193afc42bff708269508cb04f;p=platform%2Fupstream%2Fllvm.git

[NFC][libc] Detect HWASAN support macro
---

diff --git a/libc/src/__support/sanitizer.h b/libc/src/__support/sanitizer.h
index e7ae05f..509109a 100644
--- a/libc/src/__support/sanitizer.h
+++ b/libc/src/__support/sanitizer.h
@@ -42,6 +42,13 @@
 #define LLVM_LIBC_HAVE_ADDRESS_SANITIZER 1
 #endif
 
+// HWAddressSanitizer (HWASan) is a fast, low memory overhead error detector.
+#ifdef LLVM_LIBC_HAVE_HWADDRESS_SANITIZER
+#error "LLVM_LIBC_HAVE_HWADDRESS_SANITIZER cannot be directly set."
+#elif LLVM_LIBC_HAVE_FEATURE(hwaddress_sanitizer)
+#define LLVM_LIBC_HAVE_HWADDRESS_SANITIZER 1
+#endif
+
 #if LLVM_LIBC_HAVE_MEMORY_SANITIZER
 #include <sanitizer/msan_interface.h>
 #define SANITIZER_MEMORY_INITIALIZED(addr, size) __msan_unpoison(addr, size)