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115 lines
4.2 KiB
115 lines
4.2 KiB
4 months ago
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include(CompilerRTUtils)
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set(SANITIZER_GEN_DYNAMIC_LIST
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${COMPILER_RT_SOURCE_DIR}/lib/sanitizer_common/scripts/gen_dynamic_list.py)
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set(SANITIZER_LINT_SCRIPT
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${COMPILER_RT_SOURCE_DIR}/lib/sanitizer_common/scripts/check_lint.sh)
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if(CMAKE_NM)
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set(SANITIZER_NM "${CMAKE_NM}")
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else()
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set(SANITIZER_NM nm)
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endif()
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# Create a target "<name>-<arch>-symbols" that would generate the list of
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# symbols that need to be exported from sanitizer runtime "<name>". Function
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# interceptors are exported automatically, user can also provide files with
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# symbol names that should be exported as well.
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# add_sanitizer_rt_symbols(<name>
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# ARCHS <architectures>
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# PARENT_TARGET <convenience parent target>
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# EXTRA <files with extra symbols to export>)
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macro(add_sanitizer_rt_symbols name)
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cmake_parse_arguments(ARG
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""
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"PARENT_TARGET"
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"ARCHS;EXTRA"
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${ARGN})
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foreach(arch ${ARG_ARCHS})
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set(target_name ${name}-${arch})
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set(stamp ${CMAKE_CURRENT_BINARY_DIR}/${target_name}.syms-stamp)
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set(extra_args)
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foreach(arg ${ARG_EXTRA})
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list(APPEND extra_args "--extra" ${arg})
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endforeach()
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add_custom_command(OUTPUT ${stamp}
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COMMAND ${Python3_EXECUTABLE}
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${SANITIZER_GEN_DYNAMIC_LIST} ${extra_args} $<TARGET_FILE:${target_name}>
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--nm-executable "${SANITIZER_NM}" -o $<TARGET_FILE:${target_name}>.syms
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COMMAND ${CMAKE_COMMAND} -E touch ${stamp}
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DEPENDS ${target_name} ${SANITIZER_GEN_DYNAMIC_LIST} ${ARG_EXTRA}
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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COMMENT "Generating exported symbols for ${target_name}"
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VERBATIM)
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add_custom_target(${target_name}-symbols ALL
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DEPENDS ${stamp}
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SOURCES ${SANITIZER_GEN_DYNAMIC_LIST} ${ARG_EXTRA})
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get_compiler_rt_install_dir(${arch} install_dir)
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install(FILES $<TARGET_FILE:${target_name}>.syms
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DESTINATION ${install_dir})
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if(ARG_PARENT_TARGET)
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add_dependencies(${ARG_PARENT_TARGET} ${target_name}-symbols)
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endif()
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endforeach()
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endmacro()
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# This function is only used on Darwin, where undefined symbols must be specified
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# in the linker invocation.
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function(add_weak_symbols libname link_flags)
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set(weak_symbols_file "${COMPILER_RT_SOURCE_DIR}/lib/${libname}/weak_symbols.txt")
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file(STRINGS "${weak_symbols_file}" WEAK_SYMBOLS)
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# Add this file as a configure-time dependency so that changes to this
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# file trigger a re-configure. This is necessary so that `${link_flags}`
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# is changed when appropriate.
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set_property(
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DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
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APPEND
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PROPERTY CMAKE_CONFIGURE_DEPENDS "${weak_symbols_file}")
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set(local_link_flags ${${link_flags}})
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foreach(SYMBOL ${WEAK_SYMBOLS})
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set(local_link_flags ${local_link_flags} -Wl,-U,${SYMBOL})
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endforeach()
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set(${link_flags} ${local_link_flags} PARENT_SCOPE)
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endfunction()
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macro(add_sanitizer_rt_version_list name)
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set(vers ${CMAKE_CURRENT_BINARY_DIR}/${name}.vers)
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cmake_parse_arguments(ARG "" "" "LIBS;EXTRA" ${ARGN})
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set(args)
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foreach(arg ${ARG_EXTRA})
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list(APPEND args "--extra" ${arg})
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endforeach()
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foreach(arg ${ARG_LIBS})
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list(APPEND args "$<TARGET_FILE:${arg}>")
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endforeach()
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add_custom_command(OUTPUT ${vers}
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COMMAND ${Python3_EXECUTABLE}
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${SANITIZER_GEN_DYNAMIC_LIST} --version-list ${args}
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--nm-executable "${SANITIZER_NM}" -o ${vers}
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DEPENDS ${SANITIZER_GEN_DYNAMIC_LIST} ${ARG_EXTRA} ${ARG_LIBS}
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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COMMENT "Generating version list for ${name}"
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VERBATIM)
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add_custom_target(${name}-version-list ALL
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DEPENDS ${vers})
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endmacro()
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# Add target to check code style for sanitizer runtimes.
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if(CMAKE_HOST_UNIX AND NOT OS_NAME MATCHES "OpenBSD")
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add_custom_target(SanitizerLintCheck
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COMMAND env LLVM_CHECKOUT=${LLVM_MAIN_SRC_DIR} SILENT=1 TMPDIR=
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PYTHON_EXECUTABLE=${Python3_EXECUTABLE}
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COMPILER_RT=${COMPILER_RT_SOURCE_DIR}
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${SANITIZER_LINT_SCRIPT}
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DEPENDS ${SANITIZER_LINT_SCRIPT}
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COMMENT "Running lint check for sanitizer sources..."
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VERBATIM)
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else()
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add_custom_target(SanitizerLintCheck
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COMMAND echo "No lint check")
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endif()
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set_target_properties(SanitizerLintCheck
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PROPERTIES FOLDER "Compiler-RT Misc")
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