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53 lines
2.1 KiB
CMake
53 lines
2.1 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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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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if (SANITIZE STREQUAL thread)
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# Disable TSAN instrumentation that conflicts with re-exec due to high ASLR entropy using getauxval
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# See longer comment in __auxv_init_procfs
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# In the case of tsan we need to make sure getauxval is not instrumented as that would introduce tsan
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# internal calls to functions that depend on a state that isn't initialized yet
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set_source_files_properties(
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musl/getauxval.c
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PROPERTIES COMPILE_FLAGS "-mllvm -tsan-instrument-func-entry-exit=false")
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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 (ENABLE_OPENSSL_DYNAMIC)
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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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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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