Avoid unsupported attributes when not building with UBSAN

Summary:
yiwu-arbug see individual commits.
Closes https://github.com/facebook/rocksdb/pull/2318

Differential Revision: D5141520

Pulled By: yiwu-arbug

fbshipit-source-id: 7987c92ab4461eef36afce5a133d3a0ee0c96300

CMakeLists.txt

@@ -195,7 +195,6 @@ endif()
 
 option(WITH_ASAN "build with ASAN" OFF)
 if(WITH_ASAN)
-  add_definitions(-DROCKSDB_TSAN_RUN)
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
@@ -207,7 +206,6 @@ endif()
 option(WITH_TSAN "build with TSAN" OFF)
 if(WITH_TSAN)
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=thread -pie")
-  add_definitions(-DROCKSDB_TSAN_RUN)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread -fPIC")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=thread -fPIC")
   if(WITH_JEMALLOC)
@@ -217,6 +215,7 @@ endif()
 
 option(WITH_UBSAN "build with UBSAN" OFF)
 if(WITH_UBSAN)
+  add_definitions(-DROCKSDB_UBSAN_RUN)
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=undefined")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined")

Makefile

@@ -193,8 +193,8 @@ endif
 ifdef COMPILE_WITH_TSAN
 	DISABLE_JEMALLOC=1
 	EXEC_LDFLAGS += -fsanitize=thread
-	PLATFORM_CCFLAGS += -fsanitize=thread -fPIC -DROCKSDB_TSAN_RUN
-	PLATFORM_CXXFLAGS += -fsanitize=thread -fPIC -DROCKSDB_TSAN_RUN
+	PLATFORM_CCFLAGS += -fsanitize=thread -fPIC
+	PLATFORM_CXXFLAGS += -fsanitize=thread -fPIC
         # Turn off -pg when enabling TSAN testing, because that induces
         # a link failure.  TODO: find the root cause
 	PROFILING_FLAGS =
@@ -211,8 +211,8 @@ endif
 ifdef COMPILE_WITH_UBSAN
 	DISABLE_JEMALLOC=1
 	EXEC_LDFLAGS += -fsanitize=undefined
-	PLATFORM_CCFLAGS += -fsanitize=undefined
-	PLATFORM_CXXFLAGS += -fsanitize=undefined
+	PLATFORM_CCFLAGS += -fsanitize=undefined -DROCKSDB_UBSAN_RUN
+	PLATFORM_CXXFLAGS += -fsanitize=undefined -DROCKSDB_UBSAN_RUN
 endif
 
 ifndef DISABLE_JEMALLOC

db/db_test_util.h

@@ -49,10 +49,7 @@
 #include "util/mutexlock.h"
 
 #include "util/string_util.h"
-// SyncPoint is not supported in Released Windows Mode.
-#if !(defined NDEBUG) || !defined(OS_WIN)
 #include "util/sync_point.h"
-#endif  // !(defined NDEBUG) || !defined(OS_WIN)
 #include "util/testharness.h"
 #include "util/testutil.h"
 #include "utilities/merge_operators.h"

db/fault_injection_test.cc

@@ -230,10 +230,12 @@ class FaultInjectionTest : public testing::Test,
     return Status::OK();
   }
 
-#if __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 9)
-__attribute__((__no_sanitize__("undefined")))
-#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
+#ifdef ROCKSDB_UBSAN_RUN
+#if defined(__clang__)
+__attribute__((__no_sanitize__("shift"), no_sanitize("signed-integer-overflow")))
+#elif defined(__GNUC__)
 __attribute__((__no_sanitize_undefined__))
+#endif
 #endif
   // Return the ith key
   Slice Key(int i, std::string* storage) const {

util/coding.h

@@ -354,6 +354,13 @@ inline Slice GetSliceUntil(Slice* slice, char delimiter) {
 }
 
 template<class T>
+#ifdef ROCKSDB_UBSAN_RUN
+#if defined(__clang__)
+__attribute__((__no_sanitize__("alignment")))
+#elif defined(__GNUC__)
+__attribute__((__no_sanitize_undefined__))
+#endif
+#endif
 inline void PutUnaligned(T *memory, const T &value) {
 #if defined(PLATFORM_UNALIGNED_ACCESS_NOT_ALLOWED)
   char *nonAlignedMemory = reinterpret_cast<char*>(memory);
@@ -364,6 +371,13 @@ inline void PutUnaligned(T *memory, const T &value) {
 }
 
 template<class T>
+#ifdef ROCKSDB_UBSAN_RUN
+#if defined(__clang__)
+__attribute__((__no_sanitize__("alignment")))
+#elif defined(__GNUC__)
+__attribute__((__no_sanitize_undefined__))
+#endif
+#endif
 inline void GetUnaligned(const T *memory, T *value) {
 #if defined(PLATFORM_UNALIGNED_ACCESS_NOT_ALLOWED)
   char *nonAlignedMemory = reinterpret_cast<char*>(value);

util/hash.cc

@@ -15,12 +15,13 @@
 
 namespace rocksdb {
 
-// This function may intentionally do a left shift on a -ve number
-#if __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 9)
-__attribute__((__no_sanitize__("undefined")))
-#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
+#ifdef ROCKSDB_UBSAN_RUN
+#if defined(__clang__)
+__attribute__((__no_sanitize__("shift")))
+#elif defined(__GNUC__)
 __attribute__((__no_sanitize_undefined__))
 #endif
+#endif
 uint32_t Hash(const char* data, size_t n, uint32_t seed) {
   // Similar to murmur hash
   const uint32_t m = 0xc6a4a793;

utilities/col_buf_encoder.cc

@@ -46,11 +46,13 @@ ColBufEncoder *ColBufEncoder::NewColBufEncoder(
   return nullptr;
 }
 
-#if __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 9)
-__attribute__((__no_sanitize__("undefined")))
-#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
+#ifdef ROCKSDB_UBSAN_RUN
+#if defined(__clang__)
+__attribute__((__no_sanitize__("shift")))
+#elif defined(__GNUC__)
 __attribute__((__no_sanitize_undefined__))
 #endif
+#endif
 size_t FixedLengthColBufEncoder::Append(const char *buf) {
   if (nullable_) {
     if (buf == nullptr) {