[clang] [compiler-rt] [compiler-rt] Realtime Sanitizer: Introduce Realtime Sanitizer (RTSan) backend (PR #92460)

[Fangrui Song via cfe-commits]

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@@ -0,0 +1,97 @@
+//===--- rtsan_context.cpp - Realtime Sanitizer -----------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+//===----------------------------------------------------------------------===//
+
+#include <rtsan/rtsan_context.h>
+
+#include <rtsan/rtsan_stack.h>
+
+#include <sanitizer_common/sanitizer_allocator_internal.h>
+#include <sanitizer_common/sanitizer_stacktrace.h>
+
+#include <new>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static pthread_key_t context_key;
+static pthread_once_t key_once = PTHREAD_ONCE_INIT;
+
+static void internalFree(void *ptr) { __sanitizer::InternalFree(ptr); }
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MaskRay wrote:

`InternalFree`. If there is a name conflict, perhaps pick a different name.

https://github.com/llvm/llvm-project/pull/92460