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57 lines
2.0 KiB
CMake
57 lines
2.0 KiB
CMake
if (GLIBC_COMPATIBILITY)
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add_subdirectory(memcpy)
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if(TARGET memcpy)
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set(MEMCPY_LIBRARY memcpy)
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endif()
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enable_language(ASM)
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include(CheckIncludeFile)
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check_include_file("sys/random.h" HAVE_SYS_RANDOM_H)
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add_headers_and_sources(glibc_compatibility .)
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add_headers_and_sources(glibc_compatibility musl)
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if (ARCH_AARCH64)
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list (APPEND glibc_compatibility_sources musl/aarch64/syscall.s musl/aarch64/longjmp.s)
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set (musl_arch_include_dir musl/aarch64)
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elseif (ARCH_AMD64)
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list (APPEND glibc_compatibility_sources musl/x86_64/syscall.s musl/x86_64/longjmp.s)
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set (musl_arch_include_dir musl/x86_64)
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else ()
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message (FATAL_ERROR "glibc_compatibility can only be used on x86_64 or aarch64.")
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endif ()
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list(REMOVE_ITEM glibc_compatibility_sources musl/getentropy.c)
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if(HAVE_SYS_RANDOM_H)
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list(APPEND glibc_compatibility_sources musl/getentropy.c)
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endif()
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# Need to omit frame pointers to match the performance of glibc
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set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer")
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add_library(glibc-compatibility STATIC ${glibc_compatibility_sources})
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target_no_warning(glibc-compatibility unused-command-line-argument)
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target_no_warning(glibc-compatibility unused-but-set-variable)
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target_no_warning(glibc-compatibility builtin-requires-header)
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target_include_directories(glibc-compatibility PRIVATE libcxxabi ${musl_arch_include_dir})
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if (NOT USE_STATIC_LIBRARIES AND NOT USE_STATIC_LIBRARIES)
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target_compile_options(glibc-compatibility PRIVATE -fPIC)
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endif ()
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target_link_libraries(global-libs INTERFACE glibc-compatibility ${MEMCPY_LIBRARY})
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install(
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TARGETS glibc-compatibility ${MEMCPY_LIBRARY}
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EXPORT global
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ARCHIVE DESTINATION lib
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)
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message (STATUS "Some symbols from glibc will be replaced for compatibility")
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elseif (CLICKHOUSE_OFFICIAL_BUILD)
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message (WARNING "Option GLIBC_COMPATIBILITY must be turned on for production builds.")
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endif ()
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