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# Testing rules for AddressSanitizer.
#
# These are broken into two buckets. One set of tests directly interacts with
# the runtime library and checks its functionality. These are the
# no-instrumentation tests.
#
# Another group of tests relies upon the ability to compile the test with
# address sanitizer instrumentation pass. These tests form "integration" tests
# and have some elements of version skew -- they test the *host* compiler's
# instrumentation against the just-built runtime library.
include(CheckCXXCompilerFlag)
include(CompilerRTCompile)
include_directories(..)
include_directories(../..)
# Use zero-based shadow on Android.
if(ANDROID)
set(ASAN_TESTS_USE_ZERO_BASE_SHADOW TRUE)
else()
set(ASAN_TESTS_USE_ZERO_BASE_SHADOW FALSE)
endif()
set(ASAN_UNITTEST_HEADERS
asan_mac_test.h
asan_test_config.h
asan_test_utils.h)
set(ASAN_UNITTEST_COMMON_CFLAGS
${COMPILER_RT_GTEST_INCLUDE_CFLAGS}
-I${COMPILER_RT_SOURCE_DIR}/include
-I${COMPILER_RT_SOURCE_DIR}/lib
-I${COMPILER_RT_SOURCE_DIR}/lib/asan
-Wall
-Wno-format
-Werror
-g
-O2
)
if(ASAN_TESTS_USE_ZERO_BASE_SHADOW)
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS -fPIE)
endif()
if(SUPPORTS_NO_VARIADIC_MACROS_FLAG)
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS -Wno-variadic-macros)
endif()
# Use -D instead of definitions to please custom compile command.
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS
-DASAN_FLEXIBLE_MAPPING_AND_OFFSET=1
-DASAN_HAS_BLACKLIST=1
-DASAN_HAS_EXCEPTIONS=1
-DASAN_UAR=0)
if(ANDROID)
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS
-DASAN_LOW_MEMORY=1
-DASAN_NEEDS_SEGV=0)
else()
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS
-DASAN_LOW_MEMORY=0
-DASAN_NEEDS_SEGV=1)
endif()
set(ASAN_LINK_FLAGS)
if(ASAN_TESTS_USE_ZERO_BASE_SHADOW)
list(APPEND ASAN_LINK_FLAGS -pie)
endif()
# On Android, we link with ASan runtime manually. On other platforms we depend
# on Clang driver behavior, passing -fsanitize=address flag.
if(NOT ANDROID)
list(APPEND ASAN_LINK_FLAGS -fsanitize=address)
endif()
# Unit tests on Mac depend on Foundation.
if(APPLE)
list(APPEND ASAN_LINK_FLAGS -framework Foundation)
endif()
# Unit tests require libstdc++.
list(APPEND ASAN_LINK_FLAGS -lstdc++)
set(ASAN_BLACKLIST_FILE "${CMAKE_CURRENT_SOURCE_DIR}/asan_test.ignore")
set(ASAN_UNITTEST_INSTRUMENTED_CFLAGS
${ASAN_UNITTEST_COMMON_CFLAGS}
-fsanitize=address
-mllvm "-asan-blacklist=${ASAN_BLACKLIST_FILE}"
-mllvm -asan-stack=1
-mllvm -asan-globals=1
-mllvm -asan-mapping-scale=0 # default will be used
-mllvm -asan-mapping-offset-log=-1 # default will be used
-mllvm -asan-use-after-return=0
)
if(ASAN_TESTS_USE_ZERO_BASE_SHADOW)
list(APPEND ASAN_UNITTEST_INSTRUMENTED_CFLAGS
-fsanitize-address-zero-base-shadow)
endif()
# Compile source for the given architecture, using compiler
# options in ${ARGN}, and add it to the object list.
macro(asan_compile obj_list source arch)
get_filename_component(basename ${source} NAME)
set(output_obj "${basename}.${arch}.o")
get_target_flags_for_arch(${arch} TARGET_CFLAGS)
clang_compile(${output_obj} ${source}
CFLAGS ${ARGN} ${TARGET_CFLAGS}
DEPS gtest ${ASAN_RUNTIME_LIBRARIES}
${ASAN_UNITTEST_HEADERS}
${ASAN_BLACKLIST_FILE})
list(APPEND ${obj_list} ${output_obj})
endmacro()
# Link ASan unit test for a given architecture from a set
# of objects in ${ARGN}.
macro(add_asan_test test_suite test_name arch)
get_target_flags_for_arch(${arch} TARGET_LINK_FLAGS)
add_compiler_rt_test(${test_suite} ${test_name}
OBJECTS ${ARGN}
DEPS ${ASAN_RUNTIME_LIBRARIES} ${ARGN}
LINK_FLAGS ${ASAN_LINK_FLAGS}
${TARGET_LINK_FLAGS})
endmacro()
# Main AddressSanitizer unit tests.
add_custom_target(AsanUnitTests)
set_target_properties(AsanUnitTests PROPERTIES FOLDER "ASan unit tests")
# ASan benchmarks (not actively used now).
add_custom_target(AsanBenchmarks)
set_target_properties(AsanBenchmarks PROPERTIES FOLDER "Asan benchmarks")
# Adds ASan unit tests and benchmarks for architecture.
macro(add_asan_tests_for_arch arch)
# Build gtest instrumented with ASan.
set(ASAN_INST_GTEST)
asan_compile(ASAN_INST_GTEST ${COMPILER_RT_GTEST_SOURCE} ${arch}
${ASAN_UNITTEST_INSTRUMENTED_CFLAGS})
# Instrumented tests.
set(ASAN_INST_TEST_OBJECTS)
asan_compile(ASAN_INST_TEST_OBJECTS asan_globals_test.cc ${arch}
${ASAN_UNITTEST_INSTRUMENTED_CFLAGS})
asan_compile(ASAN_INST_TEST_OBJECTS asan_test.cc ${arch}
${ASAN_UNITTEST_INSTRUMENTED_CFLAGS})
if (APPLE)
asan_compile(ASAN_INST_TEST_OBJECTS asan_mac_test.mm ${arch}
${ASAN_UNITTEST_INSTRUMENTED_CFLAGS} -ObjC)
endif()
# Uninstrumented tests.
set(ASAN_NOINST_TEST_OBJECTS)
asan_compile(ASAN_NOINST_TEST_OBJECTS asan_noinst_test.cc ${arch}
${ASAN_UNITTEST_COMMON_CFLAGS})
asan_compile(ASAN_NOINST_TEST_OBJECTS asan_test_main.cc ${arch}
${ASAN_UNITTEST_COMMON_CFLAGS})
# Link everything together.
add_asan_test(AsanUnitTests "Asan-${arch}-Test" ${arch}
${ASAN_NOINST_TEST_OBJECTS}
${ASAN_INST_TEST_OBJECTS} ${ASAN_INST_GTEST})
# Instrumented benchmarks.
set(ASAN_BENCHMARKS_OBJECTS)
asan_compile(ASAN_BENCHMARKS_OBJECTS asan_benchmarks_test.cc ${arch}
${ASAN_UNITTEST_INSTRUMENTED_CFLAGS})
# Link benchmarks.
add_asan_test(AsanBenchmarks "Asan-${arch}-Benchmark" ${arch}
${ASAN_BENCHMARKS_OBJECTS} ${ASAN_INST_GTEST})
endmacro()
if(COMPILER_RT_CAN_EXECUTE_TESTS)
if(CAN_TARGET_x86_64)
add_asan_tests_for_arch(x86_64)
endif()
if(CAN_TARGET_i386)
add_asan_tests_for_arch(i386)
endif()
endif()
if(ANDROID)
# We assume that unit tests on Android are built in a build
# tree with fresh Clang as a host compiler.
set(ASAN_NOINST_TEST_SOURCES asan_noinst_test.cc asan_test_main.cc)
set(ASAN_INST_TEST_SOURCES asan_globals_test.cc asan_test.cc)
add_library(asan_noinst_test OBJECT ${ASAN_NOINST_TEST_SOURCES})
set_target_compile_flags(asan_noinst_test ${ASAN_UNITTEST_COMMON_CFLAGS})
add_library(asan_inst_test OBJECT
${ASAN_INST_TEST_SOURCES} ${COMPILER_RT_GTEST_SOURCE})
set_target_compile_flags(asan_inst_test ${ASAN_UNITTEST_INSTRUMENTED_CFLAGS})
add_executable(AsanTest
$<TARGET_OBJECTS:asan_noinst_test>
$<TARGET_OBJECTS:asan_inst_test>
)
# Setup correct output directory and link flags.
get_unittest_directory(OUTPUT_DIR)
set_target_properties(AsanTest PROPERTIES
RUNTIME_OUTPUT_DIRECTORY ${OUTPUT_DIR})
set_target_link_flags(AsanTest ${ASAN_LINK_FLAGS})
target_link_libraries(AsanTest clang_rt.asan-arm-android)
# Add unit test to test suite.
add_dependencies(AsanUnitTests AsanTest)
endif()
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