Relocate the external headers provided by ASan and the common sanitizer
library.
These headers are intended to be available to user code when built with
AddressSanitizer (or one of the other sanitizer's in the future) to
interface with the runtime library. As such, they form stable external
C interfaces, and the headers shouldn't be located within the
implementation.
I've pulled them out into what seem like fairly obvious locations and
names, but I'm wide open to further bikeshedding of these names and
locations.
I've updated the code and the build system to cope with the new
locations, both CMake and Makefile. Please let me know if this breaks
anyone's build.
The eventual goal is to install these headers along side the Clang
builtin headers when we build the ASan runtime and install it. My
current thinking is to locate them at:
<prefix>/lib/clang/X.Y/include/sanitizer/common_interface_defs.h
<prefix>/lib/clang/X.Y/include/sanitizer/asan_interface.h
<prefix>/lib/clang/X.Y/include/sanitizer/...
But maybe others have different suggestions?
Fixing the style of the #include between these headers at least unblocks
experimentation with installing them as they now should work when
installed in these locations.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@162822 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/sanitizer/common_interface_defs.h b/include/sanitizer/common_interface_defs.h
new file mode 100644
index 0000000..f76462c
--- /dev/null
+++ b/include/sanitizer/common_interface_defs.h
@@ -0,0 +1,56 @@
+//===-- sanitizer/common_interface_defs.h -----------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is shared between AddressSanitizer and ThreadSanitizer.
+// It contains basic macro and types.
+// NOTE: This file may be included into user code.
+//===----------------------------------------------------------------------===//
+
+#ifndef SANITIZER_COMMON_INTERFACE_DEFS_H
+#define SANITIZER_COMMON_INTERFACE_DEFS_H
+
+// ----------- ATTENTION -------------
+// This header should NOT include any other headers to avoid portability issues.
+
+#if defined(_WIN32)
+// FIXME find out what we need on Windows. __declspec(dllexport) ?
+# define SANITIZER_INTERFACE_ATTRIBUTE
+# define SANITIZER_WEAK_ATTRIBUTE
+#elif defined(SANITIZER_GO)
+# define SANITIZER_INTERFACE_ATTRIBUTE
+# define SANITIZER_WEAK_ATTRIBUTE
+#else
+# define SANITIZER_INTERFACE_ATTRIBUTE __attribute__((visibility("default")))
+# define SANITIZER_WEAK_ATTRIBUTE __attribute__((weak))
+#endif
+
+// __has_feature
+#if !defined(__has_feature)
+# define __has_feature(x) 0
+#endif
+
+// For portability reasons we do not include stddef.h, stdint.h or any other
+// system header, but we do need some basic types that are not defined
+// in a portable way by the language itself.
+namespace __sanitizer {
+
+typedef unsigned long uptr; // NOLINT
+typedef signed long sptr; // NOLINT
+typedef unsigned char u8;
+typedef unsigned short u16; // NOLINT
+typedef unsigned int u32;
+typedef unsigned long long u64; // NOLINT
+typedef signed char s8;
+typedef signed short s16; // NOLINT
+typedef signed int s32;
+typedef signed long long s64; // NOLINT
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_COMMON_INTERFACE_DEFS_H