[Sanitizer] first effort to start building ASan runtime with -Werror in CMake build

llvm-svn: 163686

compiler-rt/CMakeLists.txt

@@ -62,6 +62,7 @@ endfunction()
 
 # Provide some common commmandline flags for Sanitizer runtimes.
 set(SANITIZER_COMMON_CFLAGS
+  -Werror
   -fPIC
   -fno-builtin
   -fno-exceptions

compiler-rt/lib/asan/asan_interceptors.cc

@@ -625,7 +625,7 @@ void InitializeAsanInterceptors() {
 #if !MAC_INTERPOSE_FUNCTIONS
     // If we're using dynamic interceptors on Mac, these two are just plain
     // functions.
-    *(uptr*)&REAL(memcpy) = (uptr)REAL(memmove);
+    internal_memcpy(&REAL(memcpy), &REAL(memmove), sizeof(REAL(memmove)));
 #endif
   }
 

compiler-rt/lib/asan/tests/CMakeLists.txt

@@ -17,6 +17,7 @@ include_directories(../..)
 set(ASAN_UNITTEST_COMMON_CFLAGS
   -Wall
   -Wno-format
+  -Werror
   -fvisibility=hidden
   -g
   -O2

compiler-rt/lib/asan/tests/asan_noinst_test.cc

@@ -678,9 +678,10 @@ TEST(AddressSanitizerInterface, DISABLED_InvalidPoisonAndUnpoisonCallsTest) {
 }
 
 static void ErrorReportCallbackOneToZ(const char *report) {
-  write(2, "ABCDEF", 6);
-  write(2, report, strlen(report));
-  write(2, "ABCDEF", 6);
+  int report_len = strlen(report);
+  ASSERT_EQ(6, write(2, "ABCDEF", 6));
+  ASSERT_EQ(report_len, write(2, report, report_len));
+  ASSERT_EQ(6, write(2, "ABCDEF", 6));
   _exit(1);
 }
 

compiler-rt/lib/sanitizer_common/CMakeLists.txt

@@ -58,7 +58,7 @@ if(LLVM_INCLUDE_TESTS)
   add_library(RTSanitizerCommon.test STATIC ${SANITIZER_SOURCES})
   # Build test library with debug info.
   set_target_compile_flags(RTSanitizerCommon.test
-    ${SANITIZER_CFLAGS} -g -Werror)
+    ${SANITIZER_CFLAGS} -g)
   set_target_properties(RTSanitizerCommon.test PROPERTIES
     ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})