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Add CMake option LLVM_USE_SANITIZER={Address,Memory,MemoryWithOrigins} to simplify bootstrap of LLVM/Clang under ASan/MSan

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llvm-svn: 177992
This commit is contained in:
Alexey Samsonov 2013-03-26 07:49:46 +00:00
parent 970e41ab77
commit d4f81c71f9
2 changed files with 45 additions and 3 deletions
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3
CMakeLists.txt
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@ -193,6 +193,9 @@ if( LLVM_USE_OPROFILE )
endif( NOT CMAKE_SYSTEM_NAME MATCHES "Linux" )
endif( LLVM_USE_OPROFILE )
set(LLVM_USE_SANITIZER "" CACHE STRING
"Define the sanitizer used to build binaries and tests.")
# Define an option controlling whether we should build for 32-bit on 64-bit
# platforms, where supported.
if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )

45
cmake/modules/HandleLLVMOptions.cmake
View File

@ -60,9 +60,9 @@ else(WIN32)
endif(WIN32)
function(add_flag_or_print_warning flag)
check_c_compiler_flag(${flag} C_SUPPORTS_${flag})
check_cxx_compiler_flag(${flag} CXX_SUPPORTS_${flag})
if (C_SUPPORTS_${flag} AND CXX_SUPPORTS_${flag})
check_c_compiler_flag(${flag} C_SUPPORTS_FLAG)
check_cxx_compiler_flag(${flag} CXX_SUPPORTS_FLAG)
if (C_SUPPORTS_FLAG AND CXX_SUPPORTS_FLAG)
message(STATUS "Building with ${flag}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}" PARENT_SCOPE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}" PARENT_SCOPE)
@ -85,6 +85,13 @@ function(append_if condition value)
endif()
endfunction()
macro(add_flag_if_supported flag)
check_c_compiler_flag(${flag} C_SUPPORTS_FLAG)
append_if(C_SUPPORTS_FLAG "${flag}" CMAKE_C_FLAGS)
check_cxx_compiler_flag(${flag} CXX_SUPPORTS_FLAG)
append_if(CXX_SUPPORTS_FLAG "${flag}" CMAKE_CXX_FLAGS)
endmacro()
if( LLVM_ENABLE_PIC )
if( XCODE )
# Xcode has -mdynamic-no-pic on by default, which overrides -fPIC. I don't
@ -223,6 +230,38 @@ elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE )
endif (LLVM_ENABLE_WERROR)
endif( MSVC )
macro(append_common_sanitizer_flags)
# Append -fno-omit-frame-pointer and turn on debug info to get better
# stack traces.
add_flag_if_supported("-fno-omit-frame-pointer")
if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG" AND
NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELWITHDEBINFO")
add_flag_if_supported("-gline-tables-only")
endif()
endmacro()
# Turn on sanitizers if necessary.
if(LLVM_USE_SANITIZER)
if (LLVM_ON_UNIX)
if (LLVM_USE_SANITIZER STREQUAL "Address")
append_common_sanitizer_flags()
add_flag_or_print_warning("-fsanitize=address")
elseif (LLVM_USE_SANITIZER MATCHES "Memory(WithOrigins)?")
append_common_sanitizer_flags()
add_flag_or_print_warning("-fsanitize=memory")
# -pie is required for MSan.
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie")
if(LLVM_USE_SANITIZER STREQUAL "MemoryWithOrigins")
add_flag_or_print_warning("-fsanitize-memory-track-origins")
endif()
else()
message(WARNING "Unsupported value of LLVM_USE_SANITIZER: ${LLVM_USE_SANITIZER}")
endif()
else()
message(WARNING "LLVM_USE_SANITIZER is not supported on this platform.")
endif()
endif()
add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
add_llvm_definitions( -D__STDC_FORMAT_MACROS )
add_llvm_definitions( -D__STDC_LIMIT_MACROS )