1 files changed, 45 insertions, 0 deletions
diff --git a/cmake/libgav1_sanitizer.cmake b/cmake/libgav1_sanitizer.cmake
new file mode 100644
index 0000000..4bb2263
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+++ b/cmake/libgav1_sanitizer.cmake
@@ -0,0 +1,45 @@
+# Copyright 2019 The libgav1 Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if(LIBGAV1_CMAKE_LIBGAV1_SANITIZER_CMAKE_)
+  return()
+endif() # LIBGAV1_CMAKE_LIBGAV1_SANITIZER_CMAKE_
+set(LIBGAV1_CMAKE_LIBGAV1_SANITIZER_CMAKE_ 1)
+
+macro(libgav1_configure_sanitizer)
+  if(LIBGAV1_SANITIZE AND NOT MSVC)
+    if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+      if(LIBGAV1_SANITIZE MATCHES "cfi")
+        list(APPEND LIBGAV1_CXX_FLAGS "-flto" "-fno-sanitize-trap=cfi")
+        list(APPEND LIBGAV1_EXE_LINKER_FLAGS "-flto" "-fno-sanitize-trap=cfi"
+                    "-fuse-ld=gold")
+      endif()
+
+      if(${CMAKE_SIZEOF_VOID_P} EQUAL 4
+         AND LIBGAV1_SANITIZE MATCHES "integer|undefined")
+        list(APPEND LIBGAV1_EXE_LINKER_FLAGS "--rtlib=compiler-rt" "-lgcc_s")
+      endif()
+    endif()
+
+    list(APPEND LIBGAV1_CXX_FLAGS "-fsanitize=${LIBGAV1_SANITIZE}")
+    list(APPEND LIBGAV1_EXE_LINKER_FLAGS "-fsanitize=${LIBGAV1_SANITIZE}")
+
+    # Make sanitizer callstacks accurate.
+    list(APPEND LIBGAV1_CXX_FLAGS "-fno-omit-frame-pointer"
+                "-fno-optimize-sibling-calls")
+
+    libgav1_test_cxx_flag(FLAG_LIST_VAR_NAMES LIBGAV1_CXX_FLAGS FLAG_REQUIRED)
+    libgav1_test_exe_linker_flag(FLAG_LIST_VAR_NAME LIBGAV1_EXE_LINKER_FLAGS)
+  endif()
+endmacro()