1 files changed, 58 insertions, 0 deletions
diff --git a/compiler-rt/lib/scudo/scudo_platform.h b/compiler-rt/lib/scudo/scudo_platform.h
new file mode 100644
index 00000000000..86ddc1a25ae
--- /dev/null
+++ b/compiler-rt/lib/scudo/scudo_platform.h
@@ -0,0 +1,58 @@
+//===-- scudo_platform.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// Scudo platform specific definitions.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef SCUDO_PLATFORM_H_
+#define SCUDO_PLATFORM_H_
+
+#include "sanitizer_common/sanitizer_allocator.h"
+
+#if !SANITIZER_LINUX && !SANITIZER_FUCHSIA
+# error "The Scudo hardened allocator is not supported on this platform."
+#endif
+
+#if SANITIZER_ANDROID || SANITIZER_FUCHSIA
+// Android and Fuchsia use a pool of TSDs shared between threads.
+# define SCUDO_TSD_EXCLUSIVE 0
+#elif SANITIZER_LINUX && !SANITIZER_ANDROID
+// Non-Android Linux use an exclusive TSD per thread.
+# define SCUDO_TSD_EXCLUSIVE 1
+#else
+# error "No default TSD model defined for this platform."
+#endif  // SANITIZER_ANDROID || SANITIZER_FUCHSIA
+
+namespace __scudo {
+
+#if SANITIZER_CAN_USE_ALLOCATOR64
+# if defined(__aarch64__) && SANITIZER_ANDROID
+const uptr AllocatorSize = 0x2000000000ULL;  // 128G.
+typedef VeryCompactSizeClassMap SizeClassMap;
+# elif defined(__aarch64__)
+const uptr AllocatorSize = 0x10000000000ULL;  // 1T.
+typedef CompactSizeClassMap SizeClassMap;
+# else
+const uptr AllocatorSize = 0x40000000000ULL;  // 4T.
+typedef CompactSizeClassMap SizeClassMap;
+# endif
+#else
+# if SANITIZER_ANDROID
+static const uptr RegionSizeLog = 19;
+typedef VeryCompactSizeClassMap SizeClassMap;
+# else
+static const uptr RegionSizeLog = 20;
+typedef CompactSizeClassMap SizeClassMap;
+# endif
+#endif  // SANITIZER_CAN_USE_ALLOCATOR64
+
+}  // namespace __scudo
+
+#endif // SCUDO_PLATFORM_H_