[sanitizer] Move ASan platform macros to sanitizer_common and rename them appropriately.

llvm-svn: 177397

compiler-rt/lib/asan/asan_internal.h

@@ -21,39 +21,8 @@
 #include "sanitizer_common/sanitizer_stacktrace.h"
 #include "sanitizer_common/sanitizer_libc.h"
 
-#if !defined(__linux__) && !defined(__APPLE__) && !defined(_WIN32)
-# error "This operating system is not supported by AddressSanitizer"
-#endif
-
 #define ASAN_DEFAULT_FAILURE_EXITCODE 1
 
-#if defined(__linux__)
-# define ASAN_LINUX   1
-#else
-# define ASAN_LINUX   0
-#endif
-
-#if defined(__APPLE__)
-# define ASAN_MAC     1
-#else
-# define ASAN_MAC     0
-#endif
-
-#if defined(_WIN32)
-# define ASAN_WINDOWS 1
-#else
-# define ASAN_WINDOWS 0
-#endif
-
-#if defined(__ANDROID__) || defined(ANDROID)
-# define ASAN_ANDROID 1
-#else
-# define ASAN_ANDROID 0
-#endif
-
-
-#define ASAN_POSIX (ASAN_LINUX || ASAN_MAC)
-
 #if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
 # error "The AddressSanitizer run-time should not be"
         " instrumented by AddressSanitizer"
@@ -63,7 +32,7 @@
 
 // If set, asan will install its own SEGV signal handler.
 #ifndef ASAN_NEEDS_SEGV
-# if ASAN_ANDROID == 1
+# if SANITIZER_ANDROID == 1
 #  define ASAN_NEEDS_SEGV 0
 # else
 #  define ASAN_NEEDS_SEGV 1
@@ -92,7 +61,7 @@
 #endif
 
 #ifndef ASAN_USE_PREINIT_ARRAY
-# define ASAN_USE_PREINIT_ARRAY (ASAN_LINUX && !ASAN_ANDROID)
+# define ASAN_USE_PREINIT_ARRAY (SANITIZER_LINUX && !SANITIZER_ANDROID)
 #endif
 
 // All internal functions in asan reside inside the __asan namespace

compiler-rt/lib/asan/asan_linux.cc

@@ -31,7 +31,7 @@
 #include <unistd.h>
 #include <unwind.h>
 
-#if !ASAN_ANDROID
+#if !SANITIZER_ANDROID
 // FIXME: where to get ucontext on Android?
 #include <sys/ucontext.h>
 #endif
@@ -50,7 +50,7 @@ void *AsanDoesNotSupportStaticLinkage() {
 }
 
 void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) {
-#if ASAN_ANDROID
+#if SANITIZER_ANDROID
   *pc = *sp = *bp = 0;
 #elif defined(__arm__)
   ucontext_t *ucontext = (ucontext_t*)context;
@@ -119,7 +119,7 @@ void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp, bool fast) {
   }
 }
 
-#if !ASAN_ANDROID
+#if !SANITIZER_ANDROID
 void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
   ucontext_t *ucp = (ucontext_t*)context;
   *stack = (uptr)ucp->uc_stack.ss_sp;

compiler-rt/lib/asan/asan_mac.h

@@ -11,8 +11,8 @@
 //
 // Mac-specific ASan definitions.
 //===----------------------------------------------------------------------===//
-#ifndef ASAN_MAC_H
-#define ASAN_MAC_H
+#ifndef SANITIZER_MAC_H
+#define SANITIZER_MAC_H
 
 // CF_RC_BITS, the layout of CFRuntimeBase and __CFStrIsConstant are internal
 // and subject to change in further CoreFoundation versions. Apple does not
@@ -54,4 +54,4 @@ void MaybeReplaceCFAllocator();
 
 }  // namespace __asan
 
-#endif  // ASAN_MAC_H
+#endif  // SANITIZER_MAC_H

compiler-rt/lib/asan/asan_malloc_linux.cc

@@ -21,7 +21,7 @@
 #include "asan_stack.h"
 #include "asan_thread_registry.h"
 
-#if ASAN_ANDROID
+#if SANITIZER_ANDROID
 DECLARE_REAL_AND_INTERCEPTOR(void*, malloc, uptr size)
 DECLARE_REAL_AND_INTERCEPTOR(void, free, void *ptr)
 DECLARE_REAL_AND_INTERCEPTOR(void*, calloc, uptr nmemb, uptr size)

compiler-rt/lib/asan/asan_mapping.h

@@ -56,7 +56,7 @@ extern SANITIZER_INTERFACE_ATTRIBUTE uptr __asan_mapping_offset;
 # define SHADOW_SCALE (__asan_mapping_scale)
 # define SHADOW_OFFSET (__asan_mapping_offset)
 #else
-# if ASAN_ANDROID
+# if SANITIZER_ANDROID
 #  define SHADOW_SCALE (3)
 #  define SHADOW_OFFSET (0)
 # else
@@ -67,7 +67,7 @@ extern SANITIZER_INTERFACE_ATTRIBUTE uptr __asan_mapping_offset;
 #   if defined(__powerpc64__)
 #    define SHADOW_OFFSET (1ULL << 41)
 #   else
-#    if ASAN_MAC
+#    if SANITIZER_MAC
 #     define SHADOW_OFFSET (1ULL << 44)
 #    else
 #     define SHADOW_OFFSET 0x7fff8000ULL

compiler-rt/lib/asan/asan_new_delete.cc

@@ -29,7 +29,7 @@ using namespace __asan;  // NOLINT
 
 // On Android new() goes through malloc interceptors.
 // See also https://code.google.com/p/address-sanitizer/issues/detail?id=131.
-#if !ASAN_ANDROID
+#if !SANITIZER_ANDROID
 
 // Fake std::nothrow_t to avoid including <new>.
 namespace std {

compiler-rt/lib/asan/asan_rtl.cc

@@ -169,7 +169,7 @@ void InitializeFlags(Flags *f, const char *env) {
   f->poison_heap = true;
   // Turn off alloc/dealloc mismatch checker on Mac for now.
   // TODO(glider): Fix known issues and enable this back.
-  f->alloc_dealloc_mismatch = (ASAN_MAC == 0);;
+  f->alloc_dealloc_mismatch = (SANITIZER_MAC == 0);;
   f->use_stack_depot = true;  // Only affects allocator2.
   f->strict_memcmp = true;
 
@@ -462,7 +462,7 @@ void __asan_init() {
   bool full_shadow_is_available =
       MemoryRangeIsAvailable(shadow_start, shadow_end);
 
-#if ASAN_LINUX && defined(__x86_64__) && !ASAN_FIXED_MAPPING
+#if SANITIZER_LINUX && defined(__x86_64__) && !ASAN_FIXED_MAPPING
   if (!full_shadow_is_available) {
     kMidMemBeg = kLowMemEnd < 0x3000000000ULL ? 0x3000000000ULL : 0;
     kMidMemEnd = kLowMemEnd < 0x3000000000ULL ? 0x4fffffffffULL : 0;

compiler-rt/lib/asan/asan_thread_registry.cc

@@ -70,7 +70,7 @@ AsanThread *AsanThreadRegistry::GetMain() {
 AsanThread *AsanThreadRegistry::GetCurrent() {
   AsanThreadSummary *summary = (AsanThreadSummary *)AsanTSDGet();
   if (!summary) {
-#if ASAN_ANDROID
+#if SANITIZER_ANDROID
     // On Android, libc constructor is called _after_ asan_init, and cleans up
     // TSD. Try to figure out if this is still the main thread by the stack
     // address. We are not entirely sure that we have correct main thread

compiler-rt/lib/sanitizer_common/sanitizer_internal_defs.h

@@ -13,6 +13,37 @@
 #ifndef SANITIZER_DEFS_H
 #define SANITIZER_DEFS_H
 
+#if !defined(__linux__) && !defined(__APPLE__) && !defined(_WIN32)
+# error "This operating system is not supported"
+#endif
+
+#if defined(__linux__)
+# define SANITIZER_LINUX   1
+#else
+# define SANITIZER_LINUX   0
+#endif
+
+#if defined(__APPLE__)
+# define SANITIZER_MAC     1
+#else
+# define SANITIZER_MAC     0
+#endif
+
+#if defined(_WIN32)
+# define SANITIZER_WINDOWS 1
+#else
+# define SANITIZER_WINDOWS 0
+#endif
+
+#if defined(__ANDROID__) || defined(ANDROID)
+# define SANITIZER_ANDROID 1
+#else
+# define SANITIZER_ANDROID 0
+#endif
+
+#define SANITIZER_POSIX (SANITIZER_LINUX || SANITIZER_MAC)
+
+
 #if defined(_WIN32)
 // FIXME find out what we need on Windows. __declspec(dllexport) ?
 # define SANITIZER_INTERFACE_ATTRIBUTE