mirror of
https://github.com/hanzoai/datastore.git
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Raúl Marín
3f72ab7e06
* cmake/compiler_rt_link.cmake — drop "for Linux and FreeBSD" from the header; the file is included from every default_libs.cmake that needs it, and the supported-OS gating lives in contrib/compiler-rt-cmake/CMakeLists.txt. * contrib/compiler-rt-cmake/sources/asan.cmake — vfork interception trampoline is gated by "NOT WIN32 AND NOT APPLE" upstream (not Linux-only); update the comment to match the actual guard applied where the list is consumed. No functional changes.
64 lines
2.6 KiB
CMake
64 lines
2.6 KiB
CMake
# Shared compiler-rt linking logic.
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#
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# All compiler-rt runtimes (builtins, sanitizers, XRay) are built as regular
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# cmake targets in contrib/compiler-rt-cmake/. Here we wire the resulting
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# .a files into CMAKE_EXE_LINKER_FLAGS with --whole-archive so compiler-
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# generated calls (builtins, sanitizer interceptors, XRay trampolines) always
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# resolve. The build-order dependency is established in
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# contrib/compiler-rt-cmake/CMakeLists.txt by registering each clang_rt_*
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# target into global-libs.
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#
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# We pass the .a paths via CMAKE_EXE_LINKER_FLAGS (rather than via cmake target
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# names) because $<LINK_LIBRARY:WHOLE_ARCHIVE,...> doesn't survive the
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# $<TARGET_PROPERTY:global-libs,INTERFACE_LINK_LIBRARIES> indirection used in
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# global-group (see CMakeLists.txt around line 437).
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set (COMPILER_RT_DIR "${CMAKE_BINARY_DIR}/contrib/compiler-rt-cmake")
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set (BUILTINS_LIBRARY "${COMPILER_RT_DIR}/libclang_rt_builtins.a")
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set (SANITIZER_RUNTIMES "")
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if (SANITIZE STREQUAL "address" OR SANITIZE STREQUAL "address,undefined")
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# When ASan and UBSan are combined, the ASan runtime covers UBSan too.
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# ubsan_standalone must NOT be added — it shares sanitizer_common symbols
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# with asan and causes duplicate symbol errors.
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set (SANITIZER_RUNTIMES
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"${COMPILER_RT_DIR}/libclang_rt_asan_static.a"
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"${COMPILER_RT_DIR}/libclang_rt_asan.a"
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"${COMPILER_RT_DIR}/libclang_rt_asan_cxx.a"
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)
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elseif (SANITIZE STREQUAL "memory")
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set (SANITIZER_RUNTIMES
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"${COMPILER_RT_DIR}/libclang_rt_msan.a"
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"${COMPILER_RT_DIR}/libclang_rt_msan_cxx.a"
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)
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elseif (SANITIZE STREQUAL "thread")
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set (SANITIZER_RUNTIMES
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"${COMPILER_RT_DIR}/libclang_rt_tsan.a"
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"${COMPILER_RT_DIR}/libclang_rt_tsan_cxx.a"
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)
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elseif (SANITIZE STREQUAL "undefined")
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set (SANITIZER_RUNTIMES
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"${COMPILER_RT_DIR}/libclang_rt_ubsan_standalone.a"
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"${COMPILER_RT_DIR}/libclang_rt_ubsan_standalone_cxx.a"
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)
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endif()
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if (SANITIZE)
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# Tell clang not to inject its own (host-system) sanitizer runtime — we
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# provide ours.
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list (APPEND SANITIZER_RUNTIMES "-fno-sanitize-link-runtime")
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endif()
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if (ENABLE_XRAY)
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list (APPEND SANITIZER_RUNTIMES
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"-fno-xray-link-deps"
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"${COMPILER_RT_DIR}/libclang_rt_xray.a"
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)
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endif()
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string (REPLACE ";" " " SANITIZER_RUNTIMES "${SANITIZER_RUNTIMES}")
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message(STATUS "Builtins library: ${BUILTINS_LIBRARY}")
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if (SANITIZER_RUNTIMES)
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message(STATUS "Sanitizer/XRay runtimes: ${SANITIZER_RUNTIMES}")
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endif()
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--whole-archive ${BUILTINS_LIBRARY} ${SANITIZER_RUNTIMES} -Wl,--no-whole-archive")
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