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Vendor import of compiler-rt release_40 branch r292009:

Browse Source 
https://llvm.org/svn/llvm-project/compiler-rt/branches/release_40@292009
This commit is contained in:
Dimitry Andric 2017-01-14 15:38:48 +00:00
parent 3bce7d2fca
commit 5894cadf20
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/compiler-rt/dist/; revision=312177
svn path=/vendor/compiler-rt/compiler-rt-release_40-r292951/; revision=312708; tag=vendor/compiler-rt/compiler-rt-release_40-r292951
76 changed files with 632 additions and 214 deletions
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12
cmake/Modules/AddCompilerRT.cmake
View File

@ -94,7 +94,7 @@ endfunction()
# OS <os list>
# SOURCES <source files>
# CFLAGS <compile flags>
# LINKFLAGS <linker flags>
# LINK_FLAGS <linker flags>
# DEFS <compile definitions>
# LINK_LIBS <linked libraries> (only for shared library)
# OBJECT_LIBS <object libraries to use as sources>
@ -107,7 +107,7 @@ function(add_compiler_rt_runtime name type)
cmake_parse_arguments(LIB
""
"PARENT_TARGET"
"OS;ARCHS;SOURCES;CFLAGS;LINKFLAGS;DEFS;LINK_LIBS;OBJECT_LIBS"
"OS;ARCHS;SOURCES;CFLAGS;LINK_FLAGS;DEFS;LINK_LIBS;OBJECT_LIBS"
${ARGN})
set(libnames)
if(APPLE)
@ -116,7 +116,7 @@ function(add_compiler_rt_runtime name type)
set(libname "${name}_${os}")
else()
set(libname "${name}_${os}_dynamic")
set(extra_linkflags_${libname} ${DARWIN_${os}_LINKFLAGS} ${LIB_LINKFLAGS})
set(extra_link_flags_${libname} ${DARWIN_${os}_LINK_FLAGS} ${LIB_LINK_FLAGS})
endif()
list_intersect(LIB_ARCHS_${libname} DARWIN_${os}_ARCHS LIB_ARCHS)
if(LIB_ARCHS_${libname})
@ -139,7 +139,7 @@ function(add_compiler_rt_runtime name type)
else()
set(libname "${name}-dynamic-${arch}")
set(extra_cflags_${libname} ${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS})
set(extra_linkflags_${libname} ${TARGET_${arch}_LINKFLAGS} ${LIB_LINKFLAGS})
set(extra_link_flags_${libname} ${TARGET_${arch}_LINK_FLAGS} ${LIB_LINK_FLAGS})
if(WIN32)
set(output_name_${libname} ${name}_dynamic-${arch}${COMPILER_RT_OS_SUFFIX})
else()
@ -188,7 +188,7 @@ function(add_compiler_rt_runtime name type)
add_library(${libname} ${type} ${sources_${libname}})
set_target_compile_flags(${libname} ${extra_cflags_${libname}})
set_target_link_flags(${libname} ${extra_linkflags_${libname}})
set_target_link_flags(${libname} ${extra_link_flags_${libname}})
set_property(TARGET ${libname} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
set_target_output_directories(${libname} ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
@ -243,7 +243,7 @@ endfunction()
# when cross compiling, COMPILER_RT_TEST_COMPILER_CFLAGS help
# in compilation and linking of unittests.
string(REPLACE " " ";" COMPILER_RT_UNITTEST_CFLAGS "${COMPILER_RT_TEST_COMPILER_CFLAGS}")
set(COMPILER_RT_UNITTEST_LINKFLAGS ${COMPILER_RT_UNITTEST_CFLAGS})
set(COMPILER_RT_UNITTEST_LINK_FLAGS ${COMPILER_RT_UNITTEST_CFLAGS})
# Unittests support.
set(COMPILER_RT_GTEST_PATH ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest)

2
cmake/Modules/CompilerRTDarwinUtils.cmake
View File

@ -66,7 +66,7 @@ function(darwin_test_archs os valid_archs)
file(WRITE ${SIMPLE_C} "#include <stdio.h>\nint main() { printf(__FILE__); return 0; }\n")
set(os_linker_flags)
foreach(flag ${DARWIN_${os}_LINKFLAGS})
foreach(flag ${DARWIN_${os}_LINK_FLAGS})
set(os_linker_flags "${os_linker_flags} ${flag}")
endforeach()
endif()

6
cmake/Modules/CompilerRTLink.cmake
View File

@ -1,16 +1,16 @@
# Link a shared library with COMPILER_RT_TEST_COMPILER.
# clang_link_shared(<output.so>
# OBJECTS <list of input objects>
# LINKFLAGS <list of link flags>
# LINK_FLAGS <list of link flags>
# DEPS <list of dependencies>)
macro(clang_link_shared so_file)
cmake_parse_arguments(SOURCE "" "" "OBJECTS;LINKFLAGS;DEPS" ${ARGN})
cmake_parse_arguments(SOURCE "" "" "OBJECTS;LINK_FLAGS;DEPS" ${ARGN})
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND SOURCE_DEPS clang)
endif()
add_custom_command(
OUTPUT ${so_file}
COMMAND ${COMPILER_RT_TEST_COMPILER} -o "${so_file}" -shared
${SOURCE_LINKFLAGS} ${SOURCE_OBJECTS}
${SOURCE_LINK_FLAGS} ${SOURCE_OBJECTS}
DEPENDS ${SOURCE_DEPS})
endmacro()

16
cmake/Modules/CompilerRTUtils.cmake
View File

@ -126,7 +126,7 @@ endfunction()
# If successful, saves target flags for this architecture.
macro(test_target_arch arch def)
set(TARGET_${arch}_CFLAGS ${ARGN})
set(TARGET_${arch}_LINKFLAGS ${ARGN})
set(TARGET_${arch}_LINK_FLAGS ${ARGN})
set(argstring "")
foreach(arg ${ARGN})
set(argstring "${argstring} ${arg}")
@ -219,8 +219,18 @@ macro(load_llvm_config)
set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
# Make use of LLVM CMake modules.
file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE)
set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm")
# --cmakedir is supported since llvm r291218 (4.0 release)
execute_process(
COMMAND ${LLVM_CONFIG_PATH} --cmakedir
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE CONFIG_OUTPUT)
if(NOT HAD_ERROR)
string(STRIP "${CONFIG_OUTPUT}" LLVM_CMAKE_PATH)
else()
file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE)
set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm")
endif()
list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
# Get some LLVM variables from LLVMConfig.
include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")

8
cmake/Modules/SanitizerUtils.cmake
View File

@ -48,13 +48,13 @@ endmacro()
# This function is only used on Darwin, where undefined symbols must be specified
# in the linker invocation.
function(add_weak_symbols libname linkflags)
function(add_weak_symbols libname link_flags)
file(STRINGS "${COMPILER_RT_SOURCE_DIR}/lib/${libname}/weak_symbols.txt" WEAK_SYMBOLS)
set(local_linkflags ${${linkflags}})
set(local_link_flags ${${link_flags}})
foreach(SYMBOL ${WEAK_SYMBOLS})
set(local_linkflags ${local_linkflags} -Wl,-U,${SYMBOL})
set(local_link_flags ${local_link_flags} -Wl,-U,${SYMBOL})
endforeach()
set(${linkflags} ${local_linkflags} PARENT_SCOPE)
set(${link_flags} ${local_link_flags} PARENT_SCOPE)
endfunction()
macro(add_sanitizer_rt_version_list name)

19
cmake/config-ix.cmake
View File

@ -29,6 +29,7 @@ check_cxx_compiler_flag(-std=c++11 COMPILER_RT_HAS_STD_CXX11_FLAG)
check_cxx_compiler_flag(-ftls-model=initial-exec COMPILER_RT_HAS_FTLS_MODEL_INITIAL_EXEC)
check_cxx_compiler_flag(-fno-lto COMPILER_RT_HAS_FNO_LTO_FLAG)
check_cxx_compiler_flag("-Werror -msse3" COMPILER_RT_HAS_MSSE3_FLAG)
check_cxx_compiler_flag("-Werror -msse4.2" COMPILER_RT_HAS_MSSE4_2_FLAG)
check_cxx_compiler_flag(--sysroot=. COMPILER_RT_HAS_SYSROOT_FLAG)
if(NOT WIN32 AND NOT CYGWIN)
@ -241,26 +242,26 @@ if(APPLE)
set(CMAKE_OSX_DEPLOYMENT_TARGET "")
set(DARWIN_COMMON_CFLAGS -stdlib=libc++)
set(DARWIN_COMMON_LINKFLAGS
set(DARWIN_COMMON_LINK_FLAGS
-stdlib=libc++
-lc++
-lc++abi)
check_linker_flag("-fapplication-extension" COMPILER_RT_HAS_APP_EXTENSION)
if(COMPILER_RT_HAS_APP_EXTENSION)
list(APPEND DARWIN_COMMON_LINKFLAGS "-fapplication-extension")
list(APPEND DARWIN_COMMON_LINK_FLAGS "-fapplication-extension")
endif()
set(DARWIN_osx_CFLAGS
${DARWIN_COMMON_CFLAGS}
-mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION})
set(DARWIN_osx_LINKFLAGS
${DARWIN_COMMON_LINKFLAGS}
set(DARWIN_osx_LINK_FLAGS
${DARWIN_COMMON_LINK_FLAGS}
-mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION})
if(DARWIN_osx_SYSROOT)
list(APPEND DARWIN_osx_CFLAGS -isysroot ${DARWIN_osx_SYSROOT})
list(APPEND DARWIN_osx_LINKFLAGS -isysroot ${DARWIN_osx_SYSROOT})
list(APPEND DARWIN_osx_LINK_FLAGS -isysroot ${DARWIN_osx_SYSROOT})
endif()
# Figure out which arches to use for each OS
@ -283,8 +284,8 @@ if(APPLE)
${DARWIN_COMMON_CFLAGS}
${DARWIN_${platform}_SANITIZER_MIN_VER_FLAG}
-isysroot ${DARWIN_${platform}sim_SYSROOT})
set(DARWIN_${platform}sim_LINKFLAGS
${DARWIN_COMMON_LINKFLAGS}
set(DARWIN_${platform}sim_LINK_FLAGS
${DARWIN_COMMON_LINK_FLAGS}
${DARWIN_${platform}_SANITIZER_MIN_VER_FLAG}
-isysroot ${DARWIN_${platform}sim_SYSROOT})
@ -311,8 +312,8 @@ if(APPLE)
${DARWIN_COMMON_CFLAGS}
${DARWIN_${platform}_SANITIZER_MIN_VER_FLAG}
-isysroot ${DARWIN_${platform}_SYSROOT})
set(DARWIN_${platform}_LINKFLAGS
${DARWIN_COMMON_LINKFLAGS}
set(DARWIN_${platform}_LINK_FLAGS
${DARWIN_COMMON_LINK_FLAGS}
${DARWIN_${platform}_SANITIZER_MIN_VER_FLAG}
-isysroot ${DARWIN_${platform}_SYSROOT})

10
lib/asan/CMakeLists.txt
View File

@ -106,9 +106,9 @@ endif()
add_compiler_rt_component(asan)
if(APPLE)
add_weak_symbols("asan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("asan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
add_compiler_rt_runtime(clang_rt.asan
SHARED
@ -121,7 +121,7 @@ if(APPLE)
RTLSanCommon
RTUbsan
CFLAGS ${ASAN_DYNAMIC_CFLAGS}
LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS}
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
DEFS ${ASAN_DYNAMIC_DEFINITIONS}
PARENT_TARGET asan)
else()
@ -188,7 +188,7 @@ else()
RTAsan_dynamic_version_script_dummy
RTUbsan_cxx
CFLAGS ${ASAN_DYNAMIC_CFLAGS}
LINKFLAGS ${ASAN_DYNAMIC_LINK_FLAGS}
LINK_FLAGS ${ASAN_DYNAMIC_LINK_FLAGS}
${VERSION_SCRIPT_FLAG}
LINK_LIBS ${ASAN_DYNAMIC_LIBS}
DEFS ${ASAN_DYNAMIC_DEFINITIONS}

14
lib/asan/asan_activation.cc
View File

@ -77,12 +77,13 @@ static struct AsanDeactivatedFlags {
void Print() {
Report(
"quarantine_size_mb %d, max_redzone %d, poison_heap %d, "
"malloc_context_size %d, alloc_dealloc_mismatch %d, "
"allocator_may_return_null %d, coverage %d, coverage_dir %s, "
"allocator_release_to_os_interval_ms %d\n",
allocator_options.quarantine_size_mb, allocator_options.max_redzone,
poison_heap, malloc_context_size,
"quarantine_size_mb %d, thread_local_quarantine_size_kb %d, "
"max_redzone %d, poison_heap %d, malloc_context_size %d, "
"alloc_dealloc_mismatch %d, allocator_may_return_null %d, coverage %d, "
"coverage_dir %s, allocator_release_to_os_interval_ms %d\n",
allocator_options.quarantine_size_mb,
allocator_options.thread_local_quarantine_size_kb,
allocator_options.max_redzone, poison_heap, malloc_context_size,
allocator_options.alloc_dealloc_mismatch,
allocator_options.may_return_null, coverage, coverage_dir,
allocator_options.release_to_os_interval_ms);
@ -109,6 +110,7 @@ void AsanDeactivate() {
AllocatorOptions disabled = asan_deactivated_flags.allocator_options;
disabled.quarantine_size_mb = 0;
disabled.thread_local_quarantine_size_kb = 0;
disabled.min_redzone = 16; // Redzone must be at least 16 bytes long.
disabled.max_redzone = 16;
disabled.alloc_dealloc_mismatch = false;

1
lib/asan/asan_activation_flags.inc
View File

@ -24,6 +24,7 @@
ASAN_ACTIVATION_FLAG(int, redzone)
ASAN_ACTIVATION_FLAG(int, max_redzone)
ASAN_ACTIVATION_FLAG(int, quarantine_size_mb)
ASAN_ACTIVATION_FLAG(int, thread_local_quarantine_size_kb)
ASAN_ACTIVATION_FLAG(bool, alloc_dealloc_mismatch)
ASAN_ACTIVATION_FLAG(bool, poison_heap)

12
lib/asan/asan_allocator.cc
View File

@ -269,24 +269,24 @@ struct Allocator {
}
void RePoisonChunk(uptr chunk) {
// This could a user-facing chunk (with redzones), or some internal
// This could be a user-facing chunk (with redzones), or some internal
// housekeeping chunk, like TransferBatch. Start by assuming the former.
AsanChunk *ac = GetAsanChunk((void *)chunk);
uptr allocated_size = allocator.GetActuallyAllocatedSize((void *)ac);
uptr beg = ac->Beg();
uptr end = ac->Beg() + ac->UsedSize(true);
uptr chunk_end = chunk + allocated_size;
if (chunk < beg && beg < end && end <= chunk_end) {
// Looks like a valid AsanChunk. Or maybe not. Be conservative and only
// poison the redzones.
if (chunk < beg && beg < end && end <= chunk_end &&
ac->chunk_state == CHUNK_ALLOCATED) {
// Looks like a valid AsanChunk in use, poison redzones only.
PoisonShadow(chunk, beg - chunk, kAsanHeapLeftRedzoneMagic);
uptr end_aligned_down = RoundDownTo(end, SHADOW_GRANULARITY);
FastPoisonShadowPartialRightRedzone(
end_aligned_down, end - end_aligned_down,
chunk_end - end_aligned_down, kAsanHeapLeftRedzoneMagic);
} else {
// This can not be an AsanChunk. Poison everything. It may be reused as
// AsanChunk later.
// This is either not an AsanChunk or freed or quarantined AsanChunk.
// In either case, poison everything.
PoisonShadow(chunk, allocated_size, kAsanHeapLeftRedzoneMagic);
}
}

5
lib/asan/asan_flags.cc
View File

@ -169,6 +169,11 @@ void InitializeFlags() {
(ASAN_LOW_MEMORY) ? 1 << 6 : FIRST_32_SECOND_64(1 << 8, 1 << 10);
f->thread_local_quarantine_size_kb = kDefaultThreadLocalQuarantineSizeKb;
}
if (f->thread_local_quarantine_size_kb == 0 && f->quarantine_size_mb > 0) {
Report("%s: thread_local_quarantine_size_kb can be set to 0 only when "
"quarantine_size_mb is set to 0\n", SanitizerToolName);
Die();
}
if (!f->replace_str && common_flags()->intercept_strlen) {
Report("WARNING: strlen interceptor is enabled even though replace_str=0. "
"Use intercept_strlen=0 to disable it.");

66
lib/asan/tests/CMakeLists.txt
View File

@ -36,8 +36,8 @@ append_list_if(COMPILER_RT_HAS_WVARIADIC_MACROS_FLAG -Wno-variadic-macros ASAN_U
# This will ensure the target linker is used
# during cross compilation
set(ASAN_UNITTEST_COMMON_LINKFLAGS
${COMPILER_RT_UNITTEST_LINKFLAGS})
set(ASAN_UNITTEST_COMMON_LINK_FLAGS
${COMPILER_RT_UNITTEST_LINK_FLAGS})
# -gline-tables-only must be enough for ASan, so use it if possible.
if(COMPILER_RT_TEST_COMPILER_ID MATCHES "Clang")
@ -48,7 +48,7 @@ endif()
if(MSVC)
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS -gcodeview)
endif()
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS -g)
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS -g)
# Use -D instead of definitions to please custom compile command.
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS
@ -58,12 +58,12 @@ list(APPEND ASAN_UNITTEST_COMMON_CFLAGS
if(APPLE)
list(APPEND ASAN_UNITTEST_COMMON_CFLAGS ${DARWIN_osx_CFLAGS})
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS ${DARWIN_osx_LINKFLAGS})
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS ${DARWIN_osx_LINK_FLAGS})
add_weak_symbols("asan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS})
add_weak_symbols("asan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS})
endif()
if(MSVC)
@ -82,41 +82,41 @@ if(CAN_TARGET_x86_64 OR CAN_TARGET_i386)
endif()
if(NOT MSVC)
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS --driver-mode=g++)
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS --driver-mode=g++)
endif()
# x86_64 FreeBSD 9.2 additionally requires libc++ to build the tests.
if(CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE")
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS "-lc++")
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS "-lc++")
endif()
# Unit tests on Mac depend on Foundation.
if(APPLE)
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS -framework Foundation)
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS -framework Foundation)
endif()
if(ANDROID)
list(APPEND ASAN_UNITTEST_COMMON_LINKFLAGS -pie)
list(APPEND ASAN_UNITTEST_COMMON_LINK_FLAGS -pie)
endif()
set(ASAN_UNITTEST_INSTRUMENTED_LINKFLAGS
${ASAN_UNITTEST_COMMON_LINKFLAGS})
list(APPEND ASAN_UNITTEST_INSTRUMENTED_LINKFLAGS -fsanitize=address)
set(ASAN_UNITTEST_INSTRUMENTED_LINK_FLAGS
${ASAN_UNITTEST_COMMON_LINK_FLAGS})
list(APPEND ASAN_UNITTEST_INSTRUMENTED_LINK_FLAGS -fsanitize=address)
set(ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINKFLAGS
${ASAN_UNITTEST_INSTRUMENTED_LINKFLAGS}
set(ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINK_FLAGS
${ASAN_UNITTEST_INSTRUMENTED_LINK_FLAGS}
-shared-libasan)
set(ASAN_UNITTEST_INSTRUMENTED_LIBS)
# NDK r10 requires -latomic almost always.
append_list_if(ANDROID atomic ASAN_UNITTEST_INSTRUMENTED_LIBS)
set(ASAN_UNITTEST_NOINST_LINKFLAGS ${ASAN_UNITTEST_COMMON_LINKFLAGS})
set(ASAN_UNITTEST_NOINST_LINK_FLAGS ${ASAN_UNITTEST_COMMON_LINK_FLAGS})
if(NOT APPLE)
append_list_if(COMPILER_RT_HAS_LIBM -lm ASAN_UNITTEST_NOINST_LINKFLAGS)
append_list_if(COMPILER_RT_HAS_LIBDL -ldl ASAN_UNITTEST_NOINST_LINKFLAGS)
append_list_if(COMPILER_RT_HAS_LIBRT -lrt ASAN_UNITTEST_NOINST_LINKFLAGS)
append_list_if(COMPILER_RT_HAS_LIBPTHREAD -pthread ASAN_UNITTEST_NOINST_LINKFLAGS)
append_list_if(COMPILER_RT_HAS_LIBPTHREAD -pthread ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINKFLAGS)
append_list_if(COMPILER_RT_HAS_LIBM -lm ASAN_UNITTEST_NOINST_LINK_FLAGS)
append_list_if(COMPILER_RT_HAS_LIBDL -ldl ASAN_UNITTEST_NOINST_LINK_FLAGS)
append_list_if(COMPILER_RT_HAS_LIBRT -lrt ASAN_UNITTEST_NOINST_LINK_FLAGS)
append_list_if(COMPILER_RT_HAS_LIBPTHREAD -pthread ASAN_UNITTEST_NOINST_LINK_FLAGS)
append_list_if(COMPILER_RT_HAS_LIBPTHREAD -pthread ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINK_FLAGS)
endif()
# TODO(eugenis): move all -l flags above to _LIBS?
@ -148,7 +148,7 @@ endmacro()
# Link ASan unit test for a given architecture from a set
# of objects in with given linker flags.
macro(add_asan_test test_suite test_name arch kind)
cmake_parse_arguments(TEST "WITH_TEST_RUNTIME" "" "OBJECTS;LINKFLAGS;SUBDIR" ${ARGN})
cmake_parse_arguments(TEST "WITH_TEST_RUNTIME" "" "OBJECTS;LINK_FLAGS;SUBDIR" ${ARGN})
get_target_flags_for_arch(${arch} TARGET_LINK_FLAGS)
set(TEST_DEPS ${TEST_OBJECTS})
if(NOT COMPILER_RT_STANDALONE_BUILD)
@ -172,7 +172,7 @@ macro(add_asan_test test_suite test_name arch kind)
SUBDIR ${TEST_SUBDIR}
OBJECTS ${TEST_OBJECTS}
DEPS ${TEST_DEPS}
LINK_FLAGS ${TEST_LINKFLAGS}
LINK_FLAGS ${TEST_LINK_FLAGS}
${TARGET_LINK_FLAGS})
endmacro()
@ -237,8 +237,8 @@ macro(add_asan_tests_for_arch_and_kind arch kind)
endforeach()
# Clang links the static CRT by default. Override that to use the dynamic
# CRT.
set(ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINKFLAGS
${ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINKFLAGS}
set(ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINK_FLAGS
${ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINK_FLAGS}
-Wl,-nodefaultlib:libcmt,-defaultlib:msvcrt,-defaultlib:oldnames)
else()
set(ASAN_INST_DYNAMIC_TEST_OBJECTS ${ASAN_INST_TEST_OBJECTS})
@ -256,7 +256,7 @@ macro(add_asan_tests_for_arch_and_kind arch kind)
add_asan_test(AsanUnitTests "Asan-${arch}${kind}-Test"
${arch} ${kind} SUBDIR "default"
OBJECTS ${ASAN_INST_TEST_OBJECTS}
LINKFLAGS ${ASAN_UNITTEST_INSTRUMENTED_LINKFLAGS})
LINK_FLAGS ${ASAN_UNITTEST_INSTRUMENTED_LINK_FLAGS})
if(COMPILER_RT_ASAN_HAS_STATIC_RUNTIME)
# Create the 'dynamic' folder where ASAN tests are produced.
if(CMAKE_CONFIGURATION_TYPES)
@ -270,7 +270,7 @@ macro(add_asan_tests_for_arch_and_kind arch kind)
add_asan_test(AsanDynamicUnitTests "Asan-${arch}${kind}-Dynamic-Test"
${arch} ${kind} SUBDIR "dynamic"
OBJECTS ${ASAN_INST_DYNAMIC_TEST_OBJECTS}
LINKFLAGS ${ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINKFLAGS})
LINK_FLAGS ${ASAN_DYNAMIC_UNITTEST_INSTRUMENTED_LINK_FLAGS})
endif()
# Add static ASan runtime that will be linked with uninstrumented tests.
@ -307,7 +307,7 @@ macro(add_asan_tests_for_arch_and_kind arch kind)
add_asan_test(AsanUnitTests "Asan-${arch}${kind}-Noinst-Test"
${arch} ${kind} SUBDIR "default"
OBJECTS ${ASAN_NOINST_TEST_OBJECTS}
LINKFLAGS ${ASAN_UNITTEST_NOINST_LINKFLAGS}
LINK_FLAGS ${ASAN_UNITTEST_NOINST_LINK_FLAGS}
WITH_TEST_RUNTIME)
# Benchmarks.
@ -319,7 +319,7 @@ macro(add_asan_tests_for_arch_and_kind arch kind)
add_asan_test(AsanBenchmarks "Asan-${arch}${kind}-Benchmark"
${arch} ${kind} SUBDIR "default"
OBJECTS ${ASAN_BENCHMARKS_OBJECTS}
LINKFLAGS ${ASAN_UNITTEST_INSTRUMENTED_LINKFLAGS})
LINK_FLAGS ${ASAN_UNITTEST_INSTRUMENTED_LINK_FLAGS})
endmacro()
if(COMPILER_RT_CAN_EXECUTE_TESTS AND NOT ANDROID)
@ -347,7 +347,7 @@ if(ANDROID)
${COMPILER_RT_GTEST_SOURCE}
${ASAN_NOINST_TEST_SOURCES})
set_target_compile_flags(AsanNoinstTest ${ASAN_UNITTEST_COMMON_CFLAGS})
set_target_link_flags(AsanNoinstTest ${ASAN_UNITTEST_NOINST_LINKFLAGS})
set_target_link_flags(AsanNoinstTest ${ASAN_UNITTEST_NOINST_LINK_FLAGS})
target_link_libraries(AsanNoinstTest ${ASAN_UNITTEST_NOINST_LIBS})
# Test with ASan instrumentation. Link with ASan dynamic runtime.
@ -355,7 +355,7 @@ if(ANDROID)
${COMPILER_RT_GTEST_SOURCE}
${ASAN_INST_TEST_SOURCES})
set_target_compile_flags(AsanTest ${ASAN_UNITTEST_INSTRUMENTED_CFLAGS})
set_target_link_flags(AsanTest ${ASAN_UNITTEST_INSTRUMENTED_LINKFLAGS})
set_target_link_flags(AsanTest ${ASAN_UNITTEST_INSTRUMENTED_LINK_FLAGS})
target_link_libraries(AsanTest ${ASAN_UNITTEST_INSTRUMENTED_LIBS})
# Setup correct output directory and link flags.

4
lib/builtins/arm/adddf3vfp.S
View File

@ -18,10 +18,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__adddf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vadd.f64 d0, d0, d1
#else
vmov d6, r0, r1 // move first param from r0/r1 pair into d6
vmov d7, r2, r3 // move second param from r2/r3 pair into d7
vadd.f64 d6, d6, d7
vmov r0, r1, d6 // move result back to r0/r1 pair
#endif
bx lr
END_COMPILERRT_FUNCTION(__adddf3vfp)

4
lib/builtins/arm/addsf3vfp.S
View File

@ -18,10 +18,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__addsf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vadd.f32 s0, s0, s1
#else
vmov s14, r0 // move first param from r0 into float register
vmov s15, r1 // move second param from r1 into float register
vadd.f32 s14, s14, s15
vmov r0, s14 // move result back to r0
#endif
bx lr
END_COMPILERRT_FUNCTION(__addsf3vfp)

36
lib/builtins/arm/comparesf2.S
View File

@ -43,8 +43,14 @@
.thumb
#endif
.p2align 2
@ int __eqsf2(float a, float b)
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__eqsf2)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov r0, s0
vmov r1, s1
#endif
// Make copies of a and b with the sign bit shifted off the top. These will
// be used to detect zeros and NaNs.
#if __ARM_ARCH_ISA_THUMB == 1
@ -166,16 +172,23 @@ LOCAL_LABEL(CHECK_NAN):
JMP(lr)
#endif
END_COMPILERRT_FUNCTION(__eqsf2)
DEFINE_COMPILERRT_FUNCTION_ALIAS(__lesf2, __eqsf2)
DEFINE_COMPILERRT_FUNCTION_ALIAS(__ltsf2, __eqsf2)
DEFINE_COMPILERRT_FUNCTION_ALIAS(__nesf2, __eqsf2)
.p2align 2
@ int __gtsf2(float a, float b)
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__gtsf2)
// Identical to the preceding except in that we return -1 for NaN values.
// Given that the two paths share so much code, one might be tempted to
// unify them; however, the extra code needed to do so makes the code size
// to performance tradeoff very hard to justify for such small functions.
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov r0, s0
vmov r1, s1
#endif
#if __ARM_ARCH_ISA_THUMB == 1
push {r6, lr}
lsls r2, r0, #1
@ -215,6 +228,8 @@ LOCAL_LABEL(CHECK_NAN_2):
6:
pop {r6, pc}
#else
mov r2, r0, lsl #1
mov r3, r1, lsl #1
orrs r12, r2, r3, lsr #1
it ne
eorsne r12, r0, r1
@ -233,10 +248,17 @@ LOCAL_LABEL(CHECK_NAN_2):
JMP(lr)
#endif
END_COMPILERRT_FUNCTION(__gtsf2)
DEFINE_COMPILERRT_FUNCTION_ALIAS(__gesf2, __gtsf2)
.p2align 2
@ int __unordsf2(float a, float b)
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__unordsf2)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov r0, s0
vmov r1, s1
#endif
// Return 1 for NaN values, 0 otherwise.
lsls r2, r0, #1
lsls r3, r1, #1
@ -260,7 +282,15 @@ DEFINE_COMPILERRT_FUNCTION(__unordsf2)
JMP(lr)
END_COMPILERRT_FUNCTION(__unordsf2)
#if defined(COMPILER_RT_ARMHF_TARGET)
DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmpum):
vmov s0, r0
vmov s1, r1
b SYMBOL_NAME(__unordsf2)
END_COMPILERRT_FUNCTION(__aeabi_fcmpum)
#else
DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_fcmpun, __unordsf2)
#endif
NO_EXEC_STACK_DIRECTIVE

6
lib/builtins/arm/divdf3vfp.S
View File

@ -18,10 +18,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__divdf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vdiv.f64 d0, d0, d1
#else
vmov d6, r0, r1 // move first param from r0/r1 pair into d6
vmov d7, r2, r3 // move second param from r2/r3 pair into d7
vdiv.f64 d5, d6, d7
vdiv.f64 d5, d6, d7
vmov r0, r1, d5 // move result back to r0/r1 pair
#endif
bx lr
END_COMPILERRT_FUNCTION(__divdf3vfp)

4
lib/builtins/arm/divsf3vfp.S
View File

@ -18,10 +18,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__divsf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vdiv.f32 s0, s0, s1
#else
vmov s14, r0 // move first param from r0 into float register
vmov s15, r1 // move second param from r1 into float register
vdiv.f32 s13, s14, s15
vmov r0, s13 // move result back to r0
#endif
bx lr
END_COMPILERRT_FUNCTION(__divsf3vfp)

4
lib/builtins/arm/eqdf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__eqdf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
moveq r0, #1 // set result register to 1 if equal
movne r0, #0

4
lib/builtins/arm/eqsf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__eqsf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
moveq r0, #1 // set result register to 1 if equal
movne r0, #0

4
lib/builtins/arm/extendsfdf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__extendsfdf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.f64.f32 d0, s0
#else
vmov s15, r0 // load float register from R0
vcvt.f64.f32 d7, s15 // convert single to double
vmov r0, r1, d7 // return result in r0/r1 pair
#endif
bx lr
END_COMPILERRT_FUNCTION(__extendsfdf2vfp)

5
lib/builtins/arm/fixdfsivfp.S
View File

@ -19,9 +19,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__fixdfsivfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.s32.f64 s0, d0
vmov r0, s0
#else
vmov d7, r0, r1 // load double register from R0/R1
vcvt.s32.f64 s15, d7 // convert double to 32-bit int into s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__fixdfsivfp)

5
lib/builtins/arm/fixsfsivfp.S
View File

@ -19,9 +19,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__fixsfsivfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.s32.f32 s0, s0
vmov r0, s0
#else
vmov s15, r0 // load float register from R0
vcvt.s32.f32 s15, s15 // convert single to 32-bit int into s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__fixsfsivfp)

5
lib/builtins/arm/fixunsdfsivfp.S
View File

@ -20,9 +20,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__fixunsdfsivfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.u32.f64 s0, d0
vmov r0, s0
#else
vmov d7, r0, r1 // load double register from R0/R1
vcvt.u32.f64 s15, d7 // convert double to 32-bit int into s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__fixunsdfsivfp)

5
lib/builtins/arm/fixunssfsivfp.S
View File

@ -20,9 +20,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__fixunssfsivfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.u32.f32 s0, s0
vmov r0, s0
#else
vmov s15, r0 // load float register from R0
vcvt.u32.f32 s15, s15 // convert single to 32-bit unsigned into s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__fixunssfsivfp)

5
lib/builtins/arm/floatsidfvfp.S
View File

@ -19,9 +19,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__floatsidfvfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov s0, r0
vcvt.f64.s32 d0, s0
#else
vmov s15, r0 // move int to float register s15
vcvt.f64.s32 d7, s15 // convert 32-bit int in s15 to double in d7
vmov r0, r1, d7 // move d7 to result register pair r0/r1
#endif
bx lr
END_COMPILERRT_FUNCTION(__floatsidfvfp)

5
lib/builtins/arm/floatsisfvfp.S
View File

@ -19,9 +19,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__floatsisfvfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov s0, r0
vcvt.f32.s32 s0, s0
#else
vmov s15, r0 // move int to float register s15
vcvt.f32.s32 s15, s15 // convert 32-bit int in s15 to float in s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__floatsisfvfp)

5
lib/builtins/arm/floatunssidfvfp.S
View File

@ -19,9 +19,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__floatunssidfvfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov s0, r0
vcvt.f64.u32 d0, s0
#else
vmov s15, r0 // move int to float register s15
vcvt.f64.u32 d7, s15 // convert 32-bit int in s15 to double in d7
vmov r0, r1, d7 // move d7 to result register pair r0/r1
#endif
bx lr
END_COMPILERRT_FUNCTION(__floatunssidfvfp)

5
lib/builtins/arm/floatunssisfvfp.S
View File

@ -19,9 +19,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__floatunssisfvfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmov s0, r0
vcvt.f32.u32 s0, s0
#else
vmov s15, r0 // move int to float register s15
vcvt.f32.u32 s15, s15 // convert 32-bit int in s15 to float in s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__floatunssisfvfp)

4
lib/builtins/arm/gedf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__gedf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
movge r0, #1 // set result register to 1 if greater than or equal
movlt r0, #0

4
lib/builtins/arm/gesf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__gesf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
movge r0, #1 // set result register to 1 if greater than or equal
movlt r0, #0

4
lib/builtins/arm/gtdf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__gtdf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
movgt r0, #1 // set result register to 1 if equal
movle r0, #0

4
lib/builtins/arm/gtsf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__gtsf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
movgt r0, #1 // set result register to 1 if equal
movle r0, #0

4
lib/builtins/arm/ledf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__ledf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
movls r0, #1 // set result register to 1 if equal
movhi r0, #0

4
lib/builtins/arm/lesf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__lesf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
movls r0, #1 // set result register to 1 if equal
movhi r0, #0

4
lib/builtins/arm/ltdf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__ltdf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
movmi r0, #1 // set result register to 1 if equal
movpl r0, #0

4
lib/builtins/arm/ltsf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__ltsf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
movmi r0, #1 // set result register to 1 if equal
movpl r0, #0

6
lib/builtins/arm/muldf3vfp.S
View File

@ -18,10 +18,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__muldf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmul.f64 d0, d0, d1
#else
vmov d6, r0, r1 // move first param from r0/r1 pair into d6
vmov d7, r2, r3 // move second param from r2/r3 pair into d7
vmul.f64 d6, d6, d7
vmul.f64 d6, d6, d7
vmov r0, r1, d6 // move result back to r0/r1 pair
#endif
bx lr
END_COMPILERRT_FUNCTION(__muldf3vfp)

4
lib/builtins/arm/mulsf3vfp.S
View File

@ -18,9 +18,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__mulsf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vmul.f32 s0, s0, s1
#else
vmov s14, r0 // move first param from r0 into float register
vmov s15, r1 // move second param from r1 into float register
vmul.f32 s13, s14, s15
#endif
vmov r0, s13 // move result back to r0
bx lr
END_COMPILERRT_FUNCTION(__mulsf3vfp)

4
lib/builtins/arm/nedf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__nedf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
movne r0, #1 // set result register to 0 if unequal
moveq r0, #0

4
lib/builtins/arm/negdf2vfp.S
View File

@ -18,7 +18,11 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vneg.f64 d0, d0
#else
eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair
#endif
bx lr
END_COMPILERRT_FUNCTION(__negdf2vfp)

4
lib/builtins/arm/negsf2vfp.S
View File

@ -18,7 +18,11 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__negsf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vneg.f32 s0, s0
#else
eor r0, r0, #-2147483648 // flip sign bit on float in r0
#endif
bx lr
END_COMPILERRT_FUNCTION(__negsf2vfp)

4
lib/builtins/arm/nesf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__nesf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
movne r0, #1 // set result register to 1 if unequal
moveq r0, #0

4
lib/builtins/arm/subdf3vfp.S
View File

@ -18,10 +18,14 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__subdf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vsub.f64 d0, d0, d1
#else
vmov d6, r0, r1 // move first param from r0/r1 pair into d6
vmov d7, r2, r3 // move second param from r2/r3 pair into d7
vsub.f64 d6, d6, d7
vmov r0, r1, d6 // move result back to r0/r1 pair
#endif
bx lr
END_COMPILERRT_FUNCTION(__subdf3vfp)

6
lib/builtins/arm/subsf3vfp.S
View File

@ -12,17 +12,21 @@
//
// extern float __subsf3vfp(float a, float b);
//
// Returns the difference between two single precision floating point numbers
// Returns the difference between two single precision floating point numbers
// using the Darwin calling convention where single arguments are passsed
// like 32-bit ints.
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vsub.f32 s0, s0, s1
#elsee
vmov s14, r0 // move first param from r0 into float register
vmov s15, r1 // move second param from r1 into float register
vsub.f32 s14, s14, s15
vmov r0, s14 // move result back to r0
#endif
bx lr
END_COMPILERRT_FUNCTION(__subsf3vfp)

4
lib/builtins/arm/truncdfsf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__truncdfsf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.f32.f64 s0, d0
#else
vmov d7, r0, r1 // load double from r0/r1 pair
vcvt.f32.f64 s15, d7 // convert double to single (trucate precision)
vmov r0, s15 // return result in r0
#endif
bx lr
END_COMPILERRT_FUNCTION(__truncdfsf2vfp)

6
lib/builtins/arm/unorddf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__unorddf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f64 d0, d1
#else
vmov d6, r0, r1 // load r0/r1 pair in double register
vmov d7, r2, r3 // load r2/r3 pair in double register
vcmp.f64 d6, d7
vcmp.f64 d6, d7
#endif
vmrs apsr_nzcv, fpscr
movvs r0, #1 // set result register to 1 if "overflow" (any NaNs)
movvc r0, #0

4
lib/builtins/arm/unordsf2vfp.S
View File

@ -19,9 +19,13 @@
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__unordsf2vfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcmp.f32 s0, s1
#else
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
#endif
vmrs apsr_nzcv, fpscr
movvs r0, #1 // set result register to 1 if "overflow" (any NaNs)
movvc r0, #0

6
lib/msan/tests/CMakeLists.txt
View File

@ -69,15 +69,15 @@ macro(msan_compile obj_list source arch kind)
endmacro()
macro(msan_link_shared so_list so_name arch kind)
cmake_parse_arguments(SOURCE "" "" "OBJECTS;LINKFLAGS;DEPS" ${ARGN})
cmake_parse_arguments(SOURCE "" "" "OBJECTS;LINK_FLAGS;DEPS" ${ARGN})
set(output_so "${CMAKE_CURRENT_BINARY_DIR}/${so_name}.${arch}${kind}.so")
get_target_flags_for_arch(${arch} TARGET_LINKFLAGS)
get_target_flags_for_arch(${arch} TARGET_LINK_FLAGS)
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND SOURCE_DEPS msan)
endif()
clang_link_shared(${output_so}
OBJECTS ${SOURCE_OBJECTS}
LINKFLAGS ${TARGET_LINKFLAGS} ${SOURCE_LINKFLAGS}
LINK_FLAGS ${TARGET_LINK_FLAGS} ${SOURCE_LINK_FLAGS}
DEPS ${SOURCE_DEPS})
list(APPEND ${so_list} ${output_so})
endmacro()

1
lib/sanitizer_common/sanitizer_common.h
View File

@ -690,6 +690,7 @@ inline const char *ModuleArchToString(ModuleArch arch) {
return "arm64";
}
CHECK(0 && "Invalid module arch");
return "";
}
const uptr kModuleUUIDSize = 16;

2
lib/sanitizer_common/sanitizer_coverage_libcdep.cc
View File

@ -954,7 +954,9 @@ SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_cov_init() {
}
SANITIZER_INTERFACE_ATTRIBUTE void __sanitizer_cov_dump() {
coverage_data.DumpAll();
#if SANITIZER_LINUX
__sanitizer_dump_trace_pc_guard_coverage();
#endif
}
SANITIZER_INTERFACE_ATTRIBUTE void
__sanitizer_cov_module_init(s32 *guards, uptr npcs, u8 *counters,

33
lib/sanitizer_common/sanitizer_libignore.cc
View File

@ -78,10 +78,12 @@ void LibIgnore::OnLibraryLoaded(const char *name) {
lib->templ, mod.full_name());
lib->loaded = true;
lib->name = internal_strdup(mod.full_name());
const uptr idx = atomic_load(&loaded_count_, memory_order_relaxed);
code_ranges_[idx].begin = range.beg;
code_ranges_[idx].end = range.end;
atomic_store(&loaded_count_, idx + 1, memory_order_release);
const uptr idx =
atomic_load(&ignored_ranges_count_, memory_order_relaxed);
CHECK_LT(idx, kMaxLibs);
ignored_code_ranges_[idx].begin = range.beg;
ignored_code_ranges_[idx].end = range.end;
atomic_store(&ignored_ranges_count_, idx + 1, memory_order_release);
break;
}
}
@ -92,6 +94,29 @@ void LibIgnore::OnLibraryLoaded(const char *name) {
Die();
}
}
// Track instrumented ranges.
if (track_instrumented_libs_) {
for (const auto &mod : modules) {
if (!mod.instrumented())
continue;
for (const auto &range : mod.ranges()) {
if (!range.executable)
continue;
if (IsPcInstrumented(range.beg) && IsPcInstrumented(range.end - 1))
continue;
VReport(1, "Adding instrumented range %p-%p from library '%s'\n",
range.beg, range.end, mod.full_name());
const uptr idx =
atomic_load(&instrumented_ranges_count_, memory_order_relaxed);
CHECK_LT(idx, kMaxLibs);
instrumented_code_ranges_[idx].begin = range.beg;
instrumented_code_ranges_[idx].end = range.end;
atomic_store(&instrumented_ranges_count_, idx + 1,
memory_order_release);
}
}
}
}
void LibIgnore::OnLibraryUnloaded() {

45
lib/sanitizer_common/sanitizer_libignore.h
View File

@ -30,6 +30,9 @@ class LibIgnore {
// Must be called during initialization.
void AddIgnoredLibrary(const char *name_templ);
void IgnoreNoninstrumentedModules(bool enable) {
track_instrumented_libs_ = enable;
}
// Must be called after a new dynamic library is loaded.
void OnLibraryLoaded(const char *name);
@ -37,8 +40,14 @@ class LibIgnore {
// Must be called after a dynamic library is unloaded.
void OnLibraryUnloaded();
// Checks whether the provided PC belongs to one of the ignored libraries.
bool IsIgnored(uptr pc) const;
// Checks whether the provided PC belongs to one of the ignored libraries or
// the PC should be ignored because it belongs to an non-instrumented module
// (when ignore_noninstrumented_modules=1). Also returns true via
// "pc_in_ignored_lib" if the PC is in an ignored library, false otherwise.
bool IsIgnored(uptr pc, bool *pc_in_ignored_lib) const;
// Checks whether the provided PC belongs to an instrumented module.
bool IsPcInstrumented(uptr pc) const;
private:
struct Lib {
@ -53,26 +62,48 @@ class LibIgnore {
uptr end;
};
inline bool IsInRange(uptr pc, const LibCodeRange &range) const {
return (pc >= range.begin && pc < range.end);
}
static const uptr kMaxLibs = 128;
// Hot part:
atomic_uintptr_t loaded_count_;
LibCodeRange code_ranges_[kMaxLibs];
atomic_uintptr_t ignored_ranges_count_;
LibCodeRange ignored_code_ranges_[kMaxLibs];
atomic_uintptr_t instrumented_ranges_count_;
LibCodeRange instrumented_code_ranges_[kMaxLibs];
// Cold part:
BlockingMutex mutex_;
uptr count_;
Lib libs_[kMaxLibs];
bool track_instrumented_libs_;
// Disallow copying of LibIgnore objects.
LibIgnore(const LibIgnore&); // not implemented
void operator = (const LibIgnore&); // not implemented
};
inline bool LibIgnore::IsIgnored(uptr pc) const {
const uptr n = atomic_load(&loaded_count_, memory_order_acquire);
inline bool LibIgnore::IsIgnored(uptr pc, bool *pc_in_ignored_lib) const {
const uptr n = atomic_load(&ignored_ranges_count_, memory_order_acquire);
for (uptr i = 0; i < n; i++) {
if (pc >= code_ranges_[i].begin && pc < code_ranges_[i].end)
if (IsInRange(pc, ignored_code_ranges_[i])) {
*pc_in_ignored_lib = true;
return true;
}
}
*pc_in_ignored_lib = false;
if (track_instrumented_libs_ && !IsPcInstrumented(pc))
return true;
return false;
}
inline bool LibIgnore::IsPcInstrumented(uptr pc) const {
const uptr n = atomic_load(&instrumented_ranges_count_, memory_order_acquire);
for (uptr i = 0; i < n; i++) {
if (IsInRange(pc, instrumented_code_ranges_[i]))
return true;
}
return false;

7
lib/sanitizer_common/sanitizer_platform_limits_posix.h
View File

@ -635,9 +635,12 @@ namespace __sanitizer {
#ifndef __mips__
#if defined(__sparc__)
#if __GLIBC_PREREQ (2, 20)
// On sparc glibc 2.19 and earlier sa_flags was unsigned long, and
// __glibc_reserved0 didn't exist.
// On sparc glibc 2.19 and earlier sa_flags was unsigned long.
#if defined(__arch64__)
// To maintain ABI compatibility on sparc64 when switching to an int,
// __glibc_reserved0 was added.
int __glibc_reserved0;
#endif
int sa_flags;
#else
unsigned long sa_flags;

32
lib/sanitizer_common/sanitizer_quarantine.h
View File

@ -49,18 +49,31 @@ class Quarantine {
}
void Init(uptr size, uptr cache_size) {
atomic_store(&max_size_, size, memory_order_release);
// Thread local quarantine size can be zero only when global quarantine size
// is zero (it allows us to perform just one atomic read per Put() call).
CHECK((size == 0 && cache_size == 0) || cache_size != 0);
atomic_store(&max_size_, size, memory_order_relaxed);
atomic_store(&min_size_, size / 10 * 9,
memory_order_release); // 90% of max size.
max_cache_size_ = cache_size;
memory_order_relaxed); // 90% of max size.
atomic_store(&max_cache_size_, cache_size, memory_order_relaxed);
}
uptr GetSize() const { return atomic_load(&max_size_, memory_order_acquire); }
uptr GetCacheSize() const { return max_cache_size_; }
uptr GetSize() const { return atomic_load(&max_size_, memory_order_relaxed); }
uptr GetCacheSize() const {
return atomic_load(&max_cache_size_, memory_order_relaxed);
}
void Put(Cache *c, Callback cb, Node *ptr, uptr size) {
c->Enqueue(cb, ptr, size);
if (c->Size() > max_cache_size_)
uptr cache_size = GetCacheSize();
if (cache_size) {
c->Enqueue(cb, ptr, size);
} else {
// cache_size == 0 only when size == 0 (see Init).
cb.Recycle(ptr);
}
// Check cache size anyway to accommodate for runtime cache_size change.
if (c->Size() > cache_size)
Drain(c, cb);
}
@ -83,7 +96,7 @@ class Quarantine {
char pad0_[kCacheLineSize];
atomic_uintptr_t max_size_;
atomic_uintptr_t min_size_;
uptr max_cache_size_;
atomic_uintptr_t max_cache_size_;
char pad1_[kCacheLineSize];
SpinMutex cache_mutex_;
SpinMutex recycle_mutex_;
@ -92,7 +105,7 @@ class Quarantine {
void NOINLINE Recycle(Callback cb) {
Cache tmp;
uptr min_size = atomic_load(&min_size_, memory_order_acquire);
uptr min_size = atomic_load(&min_size_, memory_order_relaxed);
{
SpinMutexLock l(&cache_mutex_);
while (cache_.Size() > min_size) {
@ -205,6 +218,7 @@ class QuarantineCache {
return b;
}
};
} // namespace __sanitizer
#endif // SANITIZER_QUARANTINE_H

6
lib/sanitizer_common/tests/CMakeLists.txt
View File

@ -80,10 +80,10 @@ endif()
if(APPLE)
list(APPEND SANITIZER_TEST_CFLAGS_COMMON ${DARWIN_osx_CFLAGS})
list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON ${DARWIN_osx_LINKFLAGS})
list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON ${DARWIN_osx_LINK_FLAGS})
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON ${WEAK_SYMBOL_LINKFLAGS})
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
list(APPEND SANITIZER_TEST_LINK_FLAGS_COMMON ${WEAK_SYMBOL_LINK_FLAGS})
endif()
# MSVC linker is allocating 1M for the stack by default, which is not

7
lib/scudo/CMakeLists.txt
View File

@ -3,16 +3,23 @@ add_compiler_rt_component(scudo)
include_directories(..)
set(SCUDO_CFLAGS ${SANITIZER_COMMON_CFLAGS})
# SANITIZER_COMMON_CFLAGS include -fno-builtin, but we actually want builtins!
list(APPEND SCUDO_CFLAGS -fbuiltin)
append_rtti_flag(OFF SCUDO_CFLAGS)
set(SCUDO_SOURCES
scudo_allocator.cpp
scudo_flags.cpp
scudo_crc32.cpp
scudo_interceptors.cpp
scudo_new_delete.cpp
scudo_termination.cpp
scudo_utils.cpp)
if (COMPILER_RT_HAS_MSSE4_2_FLAG)
set_source_files_properties(scudo_crc32.cpp PROPERTIES COMPILE_FLAGS -msse4.2)
endif()
if(COMPILER_RT_HAS_SCUDO)
foreach(arch ${SCUDO_SUPPORTED_ARCH})
add_compiler_rt_runtime(clang_rt.scudo

33
lib/scudo/scudo_allocator.cpp
View File

@ -15,6 +15,7 @@
//===----------------------------------------------------------------------===//
#include "scudo_allocator.h"
#include "scudo_crc32.h"
#include "scudo_utils.h"
#include "sanitizer_common/sanitizer_allocator_interface.h"
@ -25,22 +26,6 @@
#include <cstring>
// Hardware CRC32 is supported at compilation via the following:
// - for i386 & x86_64: -msse4.2
// - for ARM & AArch64: -march=armv8-a+crc
// An additional check must be performed at runtime as well to make sure the
// emitted instructions are valid on the target host.
#if defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
# ifdef __SSE4_2__
# include <smmintrin.h>
# define HW_CRC32 FIRST_32_SECOND_64(_mm_crc32_u32, _mm_crc32_u64)
# endif
# ifdef __ARM_FEATURE_CRC32
# include <arm_acle.h>
# define HW_CRC32 FIRST_32_SECOND_64(__crc32cw, __crc32cd)
# endif
#endif
namespace __scudo {
#if SANITIZER_CAN_USE_ALLOCATOR64
@ -84,10 +69,6 @@ static thread_local Xorshift128Plus Prng;
// Global static cookie, initialized at start-up.
static uptr Cookie;
enum : u8 {
CRC32Software = 0,
CRC32Hardware = 1,
};
// We default to software CRC32 if the alternatives are not supported, either
// at compilation or at runtime.
static atomic_uint8_t HashAlgorithm = { CRC32Software };
@ -97,17 +78,9 @@ static atomic_uint8_t HashAlgorithm = { CRC32Software };
// the checksumming function if available.
INLINE u32 hashUptrs(uptr Pointer, uptr *Array, uptr ArraySize, u8 HashType) {
u32 Crc;
#if defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
if (HashType == CRC32Hardware) {
Crc = HW_CRC32(Cookie, Pointer);
for (uptr i = 0; i < ArraySize; i++)
Crc = HW_CRC32(Crc, Array[i]);
return Crc;
}
#endif
Crc = computeCRC32(Cookie, Pointer);
Crc = computeCRC32(Cookie, Pointer, HashType);
for (uptr i = 0; i < ArraySize; i++)
Crc = computeCRC32(Crc, Array[i]);
Crc = computeCRC32(Crc, Array[i], HashType);
return Crc;
}

53
lib/scudo/scudo_crc32.cpp Normal file
View File

@ -0,0 +1,53 @@
//===-- scudo_crc32.cpp -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// CRC32 function leveraging hardware specific instructions. This has to be
/// kept separated to restrict the use of compiler specific flags to this file.
///
//===----------------------------------------------------------------------===//
// Hardware CRC32 is supported at compilation via the following:
// - for i386 & x86_64: -msse4.2
// - for ARM & AArch64: -march=armv8-a+crc or -mcrc
// An additional check must be performed at runtime as well to make sure the
// emitted instructions are valid on the target host.
#include "scudo_crc32.h"
#include "scudo_utils.h"
#if defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
# ifdef __SSE4_2__
# include <smmintrin.h>
# define CRC32_INTRINSIC FIRST_32_SECOND_64(_mm_crc32_u32, _mm_crc32_u64)
# endif
# ifdef __ARM_FEATURE_CRC32
# include <arm_acle.h>
# define CRC32_INTRINSIC FIRST_32_SECOND_64(__crc32cw, __crc32cd)
# endif
#endif // defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
namespace __scudo {
#if defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
INLINE u32 computeHardwareCRC32(u32 Crc, uptr Data) {
return CRC32_INTRINSIC(Crc, Data);
}
u32 computeCRC32(u32 Crc, uptr Data, u8 HashType) {
if (HashType == CRC32Hardware) {
return computeHardwareCRC32(Crc, Data);
}
return computeSoftwareCRC32(Crc, Data);
}
#else
u32 computeCRC32(u32 Crc, uptr Data, u8 HashType) {
return computeSoftwareCRC32(Crc, Data);
}
#endif // defined(__SSE4_2__) || defined(__ARM_FEATURE_CRC32)
} // namespace __scudo

30
lib/scudo/scudo_crc32.h Normal file
View File

@ -0,0 +1,30 @@
//===-- scudo_crc32.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// Header for scudo_crc32.cpp.
///
//===----------------------------------------------------------------------===//
#ifndef SCUDO_CRC32_H_
#define SCUDO_CRC32_H_
#include "sanitizer_common/sanitizer_internal_defs.h"
namespace __scudo {
enum : u8 {
CRC32Software = 0,
CRC32Hardware = 1,
};
u32 computeCRC32(u32 Crc, uptr Data, u8 HashType);
} // namespace __scudo
#endif // SCUDO_CRC32_H_

3
lib/scudo/scudo_utils.cpp
View File

@ -185,8 +185,7 @@ const static u32 CRC32Table[] = {
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
u32 computeCRC32(u32 Crc, uptr Data)
{
u32 computeSoftwareCRC32(u32 Crc, uptr Data) {
for (uptr i = 0; i < sizeof(Data); i++) {
Crc = CRC32Table[(Crc ^ Data) & 0xff] ^ (Crc >> 8);
Data >>= 8;

4
lib/scudo/scudo_utils.h
View File

@ -53,8 +53,8 @@ struct Xorshift128Plus {
u64 State[2];
};
// Software CRC32 functions, to be used when SSE 4.2 support is not detected.
u32 computeCRC32(u32 Crc, uptr Data);
// Software CRC32 functions, to be used when hardware support is not detected.
u32 computeSoftwareCRC32(u32 Crc, uptr Data);
} // namespace __scudo

12
lib/stats/CMakeLists.txt
View File

@ -6,13 +6,13 @@ set_target_properties(stats PROPERTIES FOLDER "Compiler-RT Misc")
if(APPLE)
set(STATS_LIB_FLAVOR SHARED)
add_weak_symbols("asan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("asan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
else()
set(STATS_LIB_FLAVOR STATIC)
set(WEAK_SYMBOL_LINKFLAGS)
set(WEAK_SYMBOL_LINK_FLAGS)
endif()
add_compiler_rt_runtime(clang_rt.stats
@ -23,7 +23,7 @@ add_compiler_rt_runtime(clang_rt.stats
OBJECT_LIBS RTSanitizerCommon
RTSanitizerCommonLibc
CFLAGS ${SANITIZER_COMMON_CFLAGS}
LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS}
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
PARENT_TARGET stats)
add_compiler_rt_runtime(clang_rt.stats_client
@ -32,5 +32,5 @@ add_compiler_rt_runtime(clang_rt.stats_client
OS ${SANITIZER_COMMON_SUPPORTED_OS}
SOURCES stats_client.cc
CFLAGS ${SANITIZER_COMMON_CFLAGS}
LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS}
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
PARENT_TARGET stats)

6
lib/tsan/CMakeLists.txt
View File

@ -108,8 +108,8 @@ if(APPLE)
set_source_files_properties(${TSAN_ASM_SOURCES} PROPERTIES LANGUAGE C)
endif()
add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
add_compiler_rt_runtime(clang_rt.tsan
SHARED
@ -121,7 +121,7 @@ if(APPLE)
RTSanitizerCommonLibc
RTUbsan
CFLAGS ${TSAN_RTL_CFLAGS}
LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS}
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
PARENT_TARGET tsan)
add_compiler_rt_object_libraries(RTTsan_dynamic
OS ${TSAN_SUPPORTED_OS}

3
lib/tsan/rtl/tsan_flags.inc
View File

@ -79,5 +79,8 @@ TSAN_FLAG(bool, die_after_fork, true,
TSAN_FLAG(const char *, suppressions, "", "Suppressions file name.")
TSAN_FLAG(bool, ignore_interceptors_accesses, false,
"Ignore reads and writes from all interceptors.")
TSAN_FLAG(bool, ignore_noninstrumented_modules, false,
"Interceptors should only detect races when called from instrumented "
"modules.")
TSAN_FLAG(bool, shared_ptr_interceptor, true,
"Track atomic reference counting in libc++ shared_ptr and weak_ptr.")

55
lib/tsan/rtl/tsan_interceptors.cc
View File

@ -231,6 +231,8 @@ void InitializeLibIgnore() {
if (0 == internal_strcmp(s->type, kSuppressionLib))
libignore()->AddIgnoredLibrary(s->templ);
}
if (flags()->ignore_noninstrumented_modules)
libignore()->IgnoreNoninstrumentedModules(true);
libignore()->OnLibraryLoaded(0);
}
@ -252,31 +254,20 @@ static unsigned g_thread_finalize_key;
ScopedInterceptor::ScopedInterceptor(ThreadState *thr, const char *fname,
uptr pc)
: thr_(thr)
, pc_(pc)
, in_ignored_lib_(false) {
: thr_(thr), pc_(pc), in_ignored_lib_(false), ignoring_(false) {
Initialize(thr);
if (!thr_->is_inited)
return;
if (!thr_->ignore_interceptors)
FuncEntry(thr, pc);
if (!thr_->is_inited) return;
if (!thr_->ignore_interceptors) FuncEntry(thr, pc);
DPrintf("#%d: intercept %s()\n", thr_->tid, fname);
if (!thr_->in_ignored_lib && libignore()->IsIgnored(pc)) {
in_ignored_lib_ = true;
thr_->in_ignored_lib = true;
ThreadIgnoreBegin(thr_, pc_);
}
if (flags()->ignore_interceptors_accesses) ThreadIgnoreBegin(thr_, pc_);
ignoring_ =
!thr_->in_ignored_lib && (flags()->ignore_interceptors_accesses ||
libignore()->IsIgnored(pc, &in_ignored_lib_));
EnableIgnores();
}
ScopedInterceptor::~ScopedInterceptor() {
if (!thr_->is_inited)
return;
if (flags()->ignore_interceptors_accesses) ThreadIgnoreEnd(thr_, pc_);
if (in_ignored_lib_) {
thr_->in_ignored_lib = false;
ThreadIgnoreEnd(thr_, pc_);
}
if (!thr_->is_inited) return;
DisableIgnores();
if (!thr_->ignore_interceptors) {
ProcessPendingSignals(thr_);
FuncExit(thr_);
@ -284,20 +275,24 @@ ScopedInterceptor::~ScopedInterceptor() {
}
}
void ScopedInterceptor::UserCallbackStart() {
if (flags()->ignore_interceptors_accesses) ThreadIgnoreEnd(thr_, pc_);
if (in_ignored_lib_) {
thr_->in_ignored_lib = false;
ThreadIgnoreEnd(thr_, pc_);
void ScopedInterceptor::EnableIgnores() {
if (ignoring_) {
ThreadIgnoreBegin(thr_, pc_);
if (in_ignored_lib_) {
DCHECK(!thr_->in_ignored_lib);
thr_->in_ignored_lib = true;
}
}
}
void ScopedInterceptor::UserCallbackEnd() {
if (in_ignored_lib_) {
thr_->in_ignored_lib = true;
ThreadIgnoreBegin(thr_, pc_);
void ScopedInterceptor::DisableIgnores() {
if (ignoring_) {
ThreadIgnoreEnd(thr_, pc_);
if (in_ignored_lib_) {
DCHECK(thr_->in_ignored_lib);
thr_->in_ignored_lib = false;
}
}
if (flags()->ignore_interceptors_accesses) ThreadIgnoreBegin(thr_, pc_);
}
#define TSAN_INTERCEPT(func) INTERCEPT_FUNCTION(func)

9
lib/tsan/rtl/tsan_interceptors.h
View File

@ -10,12 +10,13 @@ class ScopedInterceptor {
public:
ScopedInterceptor(ThreadState *thr, const char *fname, uptr pc);
~ScopedInterceptor();
void UserCallbackStart();
void UserCallbackEnd();
void DisableIgnores();
void EnableIgnores();
private:
ThreadState *const thr_;
const uptr pc_;
bool in_ignored_lib_;
bool ignoring_;
};
} // namespace __tsan
@ -39,10 +40,10 @@ class ScopedInterceptor {
/**/
#define SCOPED_TSAN_INTERCEPTOR_USER_CALLBACK_START() \
si.UserCallbackStart();
si.DisableIgnores();
#define SCOPED_TSAN_INTERCEPTOR_USER_CALLBACK_END() \
si.UserCallbackEnd();
si.EnableIgnores();
#define TSAN_INTERCEPTOR(ret, func, ...) INTERCEPTOR(ret, func, __VA_ARGS__)

6
lib/tsan/tests/CMakeLists.txt
View File

@ -77,8 +77,8 @@ macro(add_tsan_unittest testname)
list(APPEND TEST_OBJECTS lib${TSAN_TEST_RUNTIME}.a)
list(APPEND TEST_DEPS ${TSAN_TEST_RUNTIME})
add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
# Intentionally do *not* link with `-fsanitize=thread`. We already link
# against a static version of the runtime, and we don't want the dynamic
@ -87,7 +87,7 @@ macro(add_tsan_unittest testname)
OBJECTS ${TEST_OBJECTS}
DEPS ${TEST_DEPS}
LINK_FLAGS ${TARGET_LINK_FLAGS} ${DARWIN_osx_LINK_FLAGS}
${WEAK_SYMBOL_LINKFLAGS} -lc++)
${WEAK_SYMBOL_LINK_FLAGS} -lc++)
endif()
endforeach()
endif()

6
lib/ubsan/CMakeLists.txt
View File

@ -56,8 +56,8 @@ if(APPLE)
SOURCES ${UBSAN_STANDALONE_SOURCES}
CFLAGS ${UBSAN_STANDALONE_CFLAGS})
add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS)
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
add_compiler_rt_runtime(clang_rt.ubsan
SHARED
@ -67,7 +67,7 @@ if(APPLE)
RTUbsan_standalone
RTSanitizerCommon
RTSanitizerCommonLibc
LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS}
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
PARENT_TARGET ubsan)
endif()

8
lib/xray/xray_AArch64.cc
View File

@ -19,6 +19,9 @@
#include <atomic>
#include <cassert>
extern "C" void __clear_cache(void* start, void* end);
namespace __xray {
uint64_t cycleFrequency() XRAY_NEVER_INSTRUMENT {
@ -75,8 +78,8 @@ inline static bool patchSled(const bool Enable, const uint32_t FuncId,
// B #32
uint32_t *FirstAddress = reinterpret_cast<uint32_t *>(Sled.Address);
uint32_t *CurAddress = FirstAddress + 1;
if (Enable) {
uint32_t *CurAddress = FirstAddress + 1;
*CurAddress = uint32_t(PatchOpcodes::PO_LdrW0_12);
CurAddress++;
*CurAddress = uint32_t(PatchOpcodes::PO_LdrX16_12);
@ -88,6 +91,7 @@ inline static bool patchSled(const bool Enable, const uint32_t FuncId,
*reinterpret_cast<void (**)()>(CurAddress) = TracingHook;
CurAddress += 2;
*CurAddress = uint32_t(PatchOpcodes::PO_LdpX0X30SP_16);
CurAddress++;
std::atomic_store_explicit(
reinterpret_cast<std::atomic<uint32_t> *>(FirstAddress),
uint32_t(PatchOpcodes::PO_StpX0X30SP_m16e), std::memory_order_release);
@ -96,6 +100,8 @@ inline static bool patchSled(const bool Enable, const uint32_t FuncId,
reinterpret_cast<std::atomic<uint32_t> *>(FirstAddress),
uint32_t(PatchOpcodes::PO_B32), std::memory_order_release);
}
__clear_cache(reinterpret_cast<char*>(FirstAddress),
reinterpret_cast<char*>(CurAddress));
return true;
}

9
test/asan/TestCases/Linux/thread_local_quarantine_size_kb.cc
View File

@ -5,8 +5,10 @@
// RUN: FileCheck %s --check-prefix=CHECK-VALUE
// RUN: %env_asan_opts=thread_local_quarantine_size_kb=64:quarantine_size_mb=64 %run %t 2>&1 | \
// RUN: FileCheck %s --allow-empty --check-prefix=CHECK-SMALL-LOCAL-CACHE-SMALL-OVERHEAD
// RUN: %env_asan_opts=thread_local_quarantine_size_kb=0:quarantine_size_mb=64 %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK-NO-LOCAL-CACHE-HUGE-OVERHEAD
// RUN: %env_asan_opts=thread_local_quarantine_size_kb=0:quarantine_size_mb=0 %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK-QUARANTINE-DISABLED
// RUN: %env_asan_opts=thread_local_quarantine_size_kb=0:quarantine_size_mb=64 not %run %t 2>&1 | \
// RUN: FileCheck %s --check-prefix=CHECK-FOR-PARAMETER-ERROR
#include <stdio.h>
#include <stdlib.h>
@ -37,4 +39,5 @@ int main() {
// CHECK-VALUE: thread_local_quarantine_size_kb=256K
// CHECK-SMALL-LOCAL-CACHE-SMALL-OVERHEAD-NOT: Heap size limit exceeded
// CHECK-NO-LOCAL-CACHE-HUGE-OVERHEAD: Heap size limit exceeded
// CHECK-QUARANTINE-DISABLED-NOT: Heap size limit exceeded
// CHECK-FOR-PARAMETER-ERROR: thread_local_quarantine_size_kb can be set to 0 only when quarantine_size_mb is set to 0

37
test/asan/TestCases/Posix/start-deactivated.cc
View File

@ -21,6 +21,7 @@
// XFAIL: arm-linux-gnueabi
#if !defined(SHARED_LIB)
#include <assert.h>
#include <dlfcn.h>
#include <stdio.h>
@ -32,13 +33,13 @@
#include "sanitizer/asan_interface.h"
constexpr unsigned nPtrs = 200;
char *ptrs[nPtrs];
void test_malloc_shadow(char *p, size_t sz, bool expect_redzones) {
// Last byte of the left redzone, if present.
assert((char *)__asan_region_is_poisoned(p - 1, sz + 1) ==
(expect_redzones ? p - 1 : nullptr));
// The user memory.
assert((char *)__asan_region_is_poisoned(p, sz) == nullptr);
// First byte of the right redzone, if present.
assert((char *)__asan_region_is_poisoned(p, sz + 1) ==
(expect_redzones ? p + sz : nullptr));
}
@ -46,12 +47,29 @@ void test_malloc_shadow(char *p, size_t sz, bool expect_redzones) {
typedef void (*Fn)();
int main(int argc, char *argv[]) {
constexpr unsigned nPtrs = 200;
char *ptrs[nPtrs];
// Before activation: no redzones.
for (size_t sz = 1; sz < nPtrs; ++sz) {
ptrs[sz] = (char *)malloc(sz);
test_malloc_shadow(ptrs[sz], sz, false);
}
// Create a honey pot for the future, instrumented, allocations. Since the
// quarantine is disabled, chunks are going to be recycled right away and
// reused for the new allocations. New allocations must get the proper
// redzones anyway, whether it's a fresh or reused allocation.
constexpr size_t HoneyPotBlockSize = 4096;
constexpr int HoneyPotSize = 200;
char *honeyPot[HoneyPotSize];
for (int i = 1; i < HoneyPotSize; ++i) {
honeyPot[i] = (char *)malloc(HoneyPotBlockSize);
test_malloc_shadow(honeyPot[i], HoneyPotBlockSize, false);
}
for (int i = 1; i < HoneyPotSize; ++i)
free(honeyPot[i]);
std::string path = std::string(argv[0]) + "-so.so";
void *dso = dlopen(path.c_str(), RTLD_NOW);
if (!dso) {
@ -67,11 +85,17 @@ int main(int argc, char *argv[]) {
}
// After activation: redzones.
for (int i = 1; i < HoneyPotSize; ++i) {
honeyPot[i] = (char *)malloc(HoneyPotBlockSize);
test_malloc_shadow(honeyPot[i], HoneyPotBlockSize, true);
}
{
char *p = (char *)malloc(100);
test_malloc_shadow(p, 100, true);
char *p = (char *)malloc(HoneyPotBlockSize);
test_malloc_shadow(p, HoneyPotBlockSize, true);
free(p);
}
for (int i = 1; i < HoneyPotSize; ++i)
free(honeyPot[i]);
// Pre-existing allocations got redzones, too.
for (size_t sz = 1; sz < nPtrs; ++sz) {
@ -93,7 +117,9 @@ int main(int argc, char *argv[]) {
return 0;
}
#else // SHARED_LIB
#include <stdio.h>
#include <stdlib.h>
@ -101,6 +127,7 @@ extern "C" void do_another_bad_thing() {
char *volatile p = (char *)malloc(100);
printf("%hhx\n", p[105]);
}
#endif // SHARED_LIB
// help=1 in activation flags lists only flags are are supported at activation

8
test/asan/lit.cfg
View File

@ -61,18 +61,18 @@ else:
# GCC-ASan doesn't link in all the necessary libraries automatically, so
# we have to do it ourselves.
if config.compiler_id == 'GNU':
extra_linkflags = ["-pthread", "-lstdc++", libdl_flag]
extra_link_flags = ["-pthread", "-lstdc++", libdl_flag]
else:
extra_linkflags = []
extra_link_flags = []
# BFD linker in 64-bit android toolchains fails to find libm.so, which is a
# transitive shared library dependency (via asan runtime).
if config.android:
extra_linkflags += ["-lm"]
extra_link_flags += ["-lm"]
# Setup default compiler flags used with -fsanitize=address option.
# FIXME: Review the set of required flags and check if it can be reduced.
target_cflags = [get_required_attr(config, "target_cflags")] + extra_linkflags
target_cflags = [get_required_attr(config, "target_cflags")] + extra_link_flags
target_cxxflags = config.cxx_mode_flags + target_cflags
clang_asan_static_cflags = (["-fsanitize=address",
"-mno-omit-leaf-frame-pointer",

6
test/profile/Linux/comdat_rename.test
View File

@ -1,6 +1,6 @@
// RUN: rm -fr %t.prof
// RUN: %clangxx_pgogen=%t.prof/ -o %t.gen -O2 %S/../Inputs/comdat_rename_1.cc %S/../Inputs/comdat_rename_2.cc
// RUN: %clangxx_pgogen=%t.prof/ -o %t.gen -mllvm -do-comdat-renaming=true -O2 %S/../Inputs/comdat_rename_1.cc %S/../Inputs/comdat_rename_2.cc
// RUN: %run %t.gen
// RUN: llvm-profdata merge -o %t.profdata %t.prof/
// RUN: %clangxx_profuse=%t.profdata -O2 -emit-llvm -S %S/../Inputs/comdat_rename_1.cc -o - | FileCheck %S/../Inputs/comdat_rename_1.cc
// RUN: %clangxx_profuse=%t.profdata -O2 -emit-llvm -S %S/../Inputs/comdat_rename_2.cc -o - | FileCheck %S/../Inputs/comdat_rename_2.cc
// RUN: %clangxx_profuse=%t.profdata -O2 -mllvm -do-comdat-renaming=true -emit-llvm -S %S/../Inputs/comdat_rename_1.cc -o - | FileCheck %S/../Inputs/comdat_rename_1.cc
// RUN: %clangxx_profuse=%t.profdata -O2 -mllvm -do-comdat-renaming=true -emit-llvm -S %S/../Inputs/comdat_rename_2.cc -o - | FileCheck %S/../Inputs/comdat_rename_2.cc

6
test/profile/lit.cfg
View File

@ -34,9 +34,9 @@ if config.test_exec_root is None:
raise SystemExit
if config.host_os in ['Linux']:
extra_linkflags = ["-ldl"]
extra_link_flags = ["-ldl"]
else:
extra_linkflags = []
extra_link_flags = []
# Test suffixes.
config.suffixes = ['.c', '.cc', '.cpp', '.m', '.mm', '.ll', '.test']
@ -46,7 +46,7 @@ config.excludes = ['Inputs']
# Clang flags.
target_cflags=[get_required_attr(config, "target_cflags")]
clang_cflags = target_cflags + extra_linkflags
clang_cflags = target_cflags + extra_link_flags
clang_cxxflags = config.cxx_mode_flags + clang_cflags
def build_invocation(compile_flags, with_lto = False):

53
test/tsan/Darwin/ignore-noninstrumented.mm Normal file
View File

@ -0,0 +1,53 @@
// Check that ignore_noninstrumented_modules=1 supresses races from system libraries on OS X.
// RUN: %clang_tsan %s -o %t -framework Foundation
// Check that without the flag, there are false positives.
// RUN: %deflake %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-RACE
// With ignore_noninstrumented_modules=1, no races are reported.
// RUN: %env_tsan_opts=ignore_noninstrumented_modules=1 %run %t 2>&1 | FileCheck %s
// With ignore_noninstrumented_modules=1, races in user's code are still reported.
// RUN: %env_tsan_opts=ignore_noninstrumented_modules=1 %deflake %run %t race 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-RACE
#import <Foundation/Foundation.h>
#import "../test.h"
char global_buf[64];
void *Thread1(void *x) {
barrier_wait(&barrier);
strcpy(global_buf, "hello world");
return NULL;
}
void *Thread2(void *x) {
strcpy(global_buf, "world hello");
barrier_wait(&barrier);
return NULL;
}
int main(int argc, char *argv[]) {
fprintf(stderr, "Hello world.\n");
// NSUserDefaults uses XPC which triggers the false positive.
NSDictionary *d = [[NSUserDefaults standardUserDefaults] dictionaryRepresentation];
fprintf(stderr, "d = %p\n", d);
if (argc > 1 && strcmp(argv[1], "race") == 0) {
barrier_init(&barrier, 2);
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
}
fprintf(stderr, "Done.\n");
}
// CHECK: Hello world.
// CHECK-RACE: SUMMARY: ThreadSanitizer: data race
// CHECK: Done.

1
test/xray/TestCases/Linux/patching-unpatching.cc
View File

@ -3,7 +3,6 @@
//
// RUN: %clangxx_xray -fxray-instrument -std=c++11 %s -o %t
// RUN: XRAY_OPTIONS="patch_premain=false" %run %t 2>&1 | FileCheck %s
// REQUIRES: stable-runtime
#include "xray/xray_interface.h"