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c862ae0c42
gcc with -nodefaultlibs does not add sanitizers library during linkage
with -static-libasan and similar, fix this, by add them explicitly.
From the gcc(1) about -nodefaultlibs:
Do not use the standard system libraries when linking. Only the
libraries you specify are passed to the linker, and options specifying
linkage of the system libraries, such as -static-libgcc or
-shared-libgcc, are ignored. The standard startup files are used
normally, unless -nostartfiles is used.
Plus checked it manually, w/o -nodefaultlibs everything works without
this explicit linkage.
After this patch UBSAN under gcc compiled successfully.
v2: freebsd and darwin
41 lines
1.3 KiB
CMake
41 lines
1.3 KiB
CMake
set (DEFAULT_LIBS "-nodefaultlibs")
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if (NOT COMPILER_CLANG)
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message (FATAL_ERROR "FreeBSD build is supported only for Clang")
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endif ()
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if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
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execute_process (COMMAND ${CMAKE_CXX_COMPILER} --print-file-name=libclang_rt.builtins-x86_64.a OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
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else ()
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execute_process (COMMAND ${CMAKE_CXX_COMPILER} --print-file-name=libclang_rt.builtins-${CMAKE_SYSTEM_PROCESSOR}.a OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
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endif ()
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set (DEFAULT_LIBS "${DEFAULT_LIBS} ${BUILTINS_LIBRARY} ${COVERAGE_OPTION} -lc -lm -lrt -lpthread")
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message(STATUS "Default libraries: ${DEFAULT_LIBS}")
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set(CMAKE_CXX_STANDARD_LIBRARIES ${DEFAULT_LIBS})
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set(CMAKE_C_STANDARD_LIBRARIES ${DEFAULT_LIBS})
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# Unfortunately '-pthread' doesn't work with '-nodefaultlibs'.
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# Just make sure we have pthreads at all.
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set(THREADS_PREFER_PTHREAD_FLAG ON)
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find_package(Threads REQUIRED)
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include (cmake/find/unwind.cmake)
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include (cmake/find/cxx.cmake)
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add_library(global-group INTERFACE)
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target_link_libraries(global-group INTERFACE
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$<TARGET_PROPERTY:global-libs,INTERFACE_LINK_LIBRARIES>
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)
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link_libraries(global-group)
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# FIXME: remove when all contribs will get custom cmake lists
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install(
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TARGETS global-group global-libs
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EXPORT global
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)
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