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Install clang18 musl libc++ #58

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Install clang18 musl libc++ #58

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ee39b2b
ebclfsa: update CMake toolchain for ebclfsa aarch64
Jun 27, 2025
0b9a5bd
ebclfsa: add deb package for Clang musl libcpp
Aug 7, 2025
91203ce
ebclfsa: update Dockerfile to install Clang musl libcpp
Aug 7, 2025
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5 changes: 5 additions & 0 deletions layers/ebclfsa/Dockerfile
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Original file line number Diff line number Diff line change
Expand Up @@ -18,3 +18,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
# add cmake toolchains
RUN mkdir -p /build/cmake
COPY conf/cmake/* /build/cmake/

COPY conf/deb-pkg/clang20-musl-libcpp_1.0.0-1_arm64.deb.part_* ./
RUN cat ./clang20-musl-libcpp_1.0.0-1_arm64.deb.part_* > clang20-musl-libcpp_1.0.0-1_arm64.deb
RUN dpkg -i ./clang20-musl-libcpp_1.0.0-1_arm64.deb
RUN rm ./clang20-musl-libcpp_1.0.0-1_arm64.deb
32 changes: 18 additions & 14 deletions layers/ebclfsa/conf/cmake/toolchain-ebclfsa-aarch64.cmake
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@@ -1,25 +1,29 @@
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR aarch64)

set(CMAKE_C_COMPILER clang)
set(CMAKE_CXX_COMPILER clang++)
set(MUSL_SYSROOT_PATH /usr/aarch64-linux-musl)
set(CLANG_ROOT_PATH /usr/aarch64_clang_musl/usr/local)

set(CMAKE_SYSROOT /build/sysroot_hi_aarch64)
set(LOC_TARGET aarch64-linux-musl)
set(CLANG_LIBS_1 ${CLANG_ROOT_PATH}/lib)
set(CLANG_LIBS_2 ${CLANG_ROOT_PATH}/lib/${LOC_TARGET})
set(MUSL_INCLUDE ${SYSROOT_PATH}/${LOC_TARGET}/include)
set(CLANG_INCLUDE_1 ${CLANG_ROOT_PATH}/include/c++/v1)
set(CLANG_INCLUDE_2 ${CLANG_ROOT_PATH}/include/aarch64-unknown-linux-musl/c++/v1)

set(CMAKE_C_COMPILER ${CLANG_ROOT_PATH}/bin/clang)
set(CMAKE_CXX_COMPILER ${CLANG_ROOT_PATH}/bin/clang++)
set(CMAKE_LINKER /usr/bin/lld)
set(CMAKE_SYSROOT ${MUSL_SYSROOT_PATH})
set(CMAKE_FIND_ROOT_PATH ${MUSL_SYSROOT_PATH})

set(GCC_LIBS /usr/lib/gcc-cross/aarch64-linux-gnu/11)
set(MUSL_LIBS /usr/lib/aarch64-linux-musl)
set(MUSL_INCLUDE /usr/include/aarch64-linux-musl)

# Only static binaries are allowed
set(CMAKE_C_FLAGS "-static")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -target ${LOC_TARGET}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -isystem ${CLANG_INCLUDE_1}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -isystem ${CLANG_INCLUDE_2}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -isystem ${MUSL_INCLUDE}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -target aarch64-linux-musl")

set(CMAKE_EXE_LINKER_FLAGS "-fuse-ld=lld -nostdlib -L${MUSL_LIBS} -L ${GCC_LIBS} -lc -lgcc -lgcc_eh")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${MUSL_LIBS}/Scrt1.o ${MUSL_LIBS}/crti.o ${GCC_LIBS}/crtbeginS.o ${GCC_LIBS}/crtendS.o ${MUSL_LIBS}/crtn.o")

set(CMAKE_FIND_ROOT_PATH "${CMAKE_SYSROOT}")
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_EXE_LINKER_FLAGS "-stdlib=libc++ -lc++ -lc++abi -lunwind -fuse-ld=lld -L${CLANG_LIBS_1} -L${CLANG_LIBS_2}")

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