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| include(CompilerRTUtils)
set(SANITIZER_GEN_DYNAMIC_LIST
${COMPILER_RT_SOURCE_DIR}/lib/sanitizer_common/scripts/gen_dynamic_list.py)
set(SANITIZER_LINT_SCRIPT
${COMPILER_RT_SOURCE_DIR}/lib/sanitizer_common/scripts/check_lint.sh)
if(CMAKE_NM)
set(SANITIZER_NM "${CMAKE_NM}")
else()
set(SANITIZER_NM nm)
endif()
# Create a target "<name>-<arch>-symbols" that would generate the list of
# symbols that need to be exported from sanitizer runtime "<name>". Function
# interceptors are exported automatically, user can also provide files with
# symbol names that should be exported as well.
# add_sanitizer_rt_symbols(<name>
# ARCHS <architectures>
# PARENT_TARGET <convenience parent target>
# EXTRA <files with extra symbols to export>)
macro(add_sanitizer_rt_symbols name)
cmake_parse_arguments(ARG
""
"PARENT_TARGET"
"ARCHS;EXTRA"
${ARGN})
foreach(arch ${ARG_ARCHS})
set(target_name ${name}-${arch})
set(stamp ${CMAKE_CURRENT_BINARY_DIR}/${target_name}.syms-stamp)
set(extra_args)
foreach(arg ${ARG_EXTRA})
list(APPEND extra_args "--extra" ${arg})
endforeach()
add_custom_command(OUTPUT ${stamp}
COMMAND ${PYTHON_EXECUTABLE}
${SANITIZER_GEN_DYNAMIC_LIST} ${extra_args} $<TARGET_FILE:${target_name}>
--nm-executable "${SANITIZER_NM}" -o $<TARGET_FILE:${target_name}>.syms
COMMAND ${CMAKE_COMMAND} -E touch ${stamp}
DEPENDS ${target_name} ${SANITIZER_GEN_DYNAMIC_LIST} ${ARG_EXTRA}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Generating exported symbols for ${target_name}"
VERBATIM)
add_custom_target(${target_name}-symbols ALL
DEPENDS ${stamp}
SOURCES ${SANITIZER_GEN_DYNAMIC_LIST} ${ARG_EXTRA})
get_compiler_rt_install_dir(${arch} install_dir)
install(FILES $<TARGET_FILE:${target_name}>.syms
DESTINATION ${install_dir})
if(ARG_PARENT_TARGET)
add_dependencies(${ARG_PARENT_TARGET} ${target_name}-symbols)
endif()
endforeach()
endmacro()
# This function is only used on Darwin, where undefined symbols must be specified
# in the linker invocation.
function(add_weak_symbols libname link_flags)
set(weak_symbols_file "${COMPILER_RT_SOURCE_DIR}/lib/${libname}/weak_symbols.txt")
file(STRINGS "${weak_symbols_file}" WEAK_SYMBOLS)
# Add this file as a configure-time dependency so that changes to this
# file trigger a re-configure. This is necessary so that `${link_flags}`
# is changed when appropriate.
set_property(
DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
APPEND
PROPERTY CMAKE_CONFIGURE_DEPENDS "${weak_symbols_file}")
set(local_link_flags ${${link_flags}})
foreach(SYMBOL ${WEAK_SYMBOLS})
set(local_link_flags ${local_link_flags} -Wl,-U,${SYMBOL})
endforeach()
set(${link_flags} ${local_link_flags} PARENT_SCOPE)
endfunction()
macro(add_sanitizer_rt_version_list name)
set(vers ${CMAKE_CURRENT_BINARY_DIR}/${name}.vers)
cmake_parse_arguments(ARG "" "" "LIBS;EXTRA" ${ARGN})
set(args)
foreach(arg ${ARG_EXTRA})
list(APPEND args "--extra" ${arg})
endforeach()
foreach(arg ${ARG_LIBS})
list(APPEND args "$<TARGET_FILE:${arg}>")
endforeach()
add_custom_command(OUTPUT ${vers}
COMMAND ${PYTHON_EXECUTABLE}
${SANITIZER_GEN_DYNAMIC_LIST} --version-list ${args}
--nm-executable "${SANITIZER_NM}" -o ${vers}
DEPENDS ${SANITIZER_GEN_DYNAMIC_LIST} ${ARG_EXTRA} ${ARG_LIBS}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Generating version list for ${name}"
VERBATIM)
add_custom_target(${name}-version-list ALL
DEPENDS ${vers})
endmacro()
# Add target to check code style for sanitizer runtimes.
if(CMAKE_HOST_UNIX AND NOT OS_NAME MATCHES "OpenBSD")
add_custom_target(SanitizerLintCheck
COMMAND env LLVM_CHECKOUT=${LLVM_MAIN_SRC_DIR} SILENT=1 TMPDIR=
PYTHON_EXECUTABLE=${PYTHON_EXECUTABLE}
COMPILER_RT=${COMPILER_RT_SOURCE_DIR}
${SANITIZER_LINT_SCRIPT}
DEPENDS ${SANITIZER_LINT_SCRIPT}
COMMENT "Running lint check for sanitizer sources..."
VERBATIM)
else()
add_custom_target(SanitizerLintCheck
COMMAND echo "No lint check")
endif()
set_target_properties(SanitizerLintCheck
PROPERTIES FOLDER "Compiler-RT Misc")
|