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-rw-r--r--third_party/aom/build/cmake/sanitizers.cmake39
1 files changed, 24 insertions, 15 deletions
diff --git a/third_party/aom/build/cmake/sanitizers.cmake b/third_party/aom/build/cmake/sanitizers.cmake
index 2b9067868..77708e101 100644
--- a/third_party/aom/build/cmake/sanitizers.cmake
+++ b/third_party/aom/build/cmake/sanitizers.cmake
@@ -1,19 +1,21 @@
-##
-## Copyright (c) 2017, Alliance for Open Media. All rights reserved
-##
-## This source code is subject to the terms of the BSD 2 Clause License and
-## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
-## was not distributed with this source code in the LICENSE file, you can
-## obtain it at www.aomedia.org/license/software. If the Alliance for Open
-## Media Patent License 1.0 was not distributed with this source code in the
-## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
-##
-if (NOT AOM_BUILD_CMAKE_SANITIZERS_CMAKE_)
+#
+# Copyright (c) 2017, Alliance for Open Media. All rights reserved
+#
+# This source code is subject to the terms of the BSD 2 Clause License and the
+# Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was
+# not distributed with this source code in the LICENSE file, you can obtain it
+# at www.aomedia.org/license/software. If the Alliance for Open Media Patent
+# License 1.0 was not distributed with this source code in the PATENTS file, you
+# can obtain it at www.aomedia.org/license/patent.
+#
+if(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_)
+ return()
+endif() # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_
set(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 1)
-if (MSVC OR NOT SANITIZE)
- return ()
-endif ()
+if(MSVC OR NOT SANITIZE)
+ return()
+endif()
include("${AOM_ROOT}/build/cmake/compiler_flags.cmake")
@@ -26,4 +28,11 @@ require_compiler_flag("-fsanitize=${SANITIZE}" YES)
# Make callstacks accurate.
require_compiler_flag("-fno-omit-frame-pointer -fno-optimize-sibling-calls" YES)
-endif() # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_
+# Fix link errors due to missing rt compiler lib in 32-bit builds.
+# http://llvm.org/bugs/show_bug.cgi?id=17693
+if(CMAKE_C_COMPILER_ID MATCHES "Clang")
+ if(${CMAKE_SIZEOF_VOID_P} EQUAL 4 AND "${SANITIZE}" MATCHES
+ "integer|undefined")
+ require_linker_flag("--rtlib=compiler-rt -lgcc_s")
+ endif()
+endif()