[Bug]: Can't link using riscv64 toolchain

[Mizux]

Describe the issue

When using the bootlin cross_toolchain
ref: https://toolchains.bootlin.com/

I got the trace:

[ 79%] Linking CXX executable ../../bin/protoc-gen-upb
/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: ../../lib/libabsl_log_internal_message.so.2401.0.0: undefined reference to `__atomic_compare_exchange_1'
/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: ../../lib/libabsl_log_internal_globals.so.2401.0.0: undefined reference to `__atomic_exchange_1'
collect2: error: ld returned 1 exit status
gmake[2]: *** [_deps/protobuf-build/CMakeFiles/protoc-gen-upb.dir/build.make:257: bin/protoc-gen-upb-27.2.0] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:4663: _deps/protobuf-build/CMakeFiles/protoc-gen-upb.dir/all] Error 2
gmake: *** [Makefile:146: all] Error 2

Steps to reproduce the problem

I'm using my pet project mizux/cmake-cpp:

git clone -b main ssh://[email protected]/Mizux/cmake-cpp
cd cmake-cpp

# use my "makefile based" script to build inside an ubuntu container using the cross-toolchain
make --directory=ci riscv64_build
...
error

note: to debug inside the container you can do:

# build the container until the devel stage then docker run an instance in it
$ make --directory=ci sh_riscv64_devel
...
# inside the container try to build using the tools/cross_compile.sh script
root@corentinl:/home/project# ./tools/cross_compile.sh riscv64
...
/home/project/build_cross/archives/riscv64/bin/riscv64-linux-ranlib ../../lib/libprotoc.a
gmake[2]: Leaving directory '/home/project/build_cross/riscv64'
[100%] Built target libprotoc
gmake[1]: Leaving directory '/home/project/build_cross/riscv64'
gmake: *** [Makefile:146: all] Error 2


# rerun the cmake build to get the error
root@corentinl:/home/project# cmake --build build_cross/riscv64/ -v
...
[ 79%] Linking CXX executable ../../bin/protoc-gen-upb
cd /home/project/build_cross/riscv64/_deps/protobuf-build && /usr/local/bin/cmake -E cmake_link_script CMakeFiles/protoc-gen-upb.dir/link.txt --verbose=1
/home/project/build_cross/archives/riscv64/bin/riscv64-linux-g++ --sysroot=/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot  -L/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/lib -O3 -DNDEBUG "CMakeFiles/protoc-gen-upb.dir/upb_generator/common.cc.o" "CMakeFiles/protoc-gen-upb.dir/upb_generator/file_layout.cc.o" "CMakeFiles/protoc-gen-upb.dir/upb_generator/mangle.cc.o" "CMakeFiles/protoc-gen-upb.dir/upb_generator/names.cc.o" "CMakeFiles/protoc-gen-upb.dir/upb_generator/protoc-gen-upb.cc.o" "CMakeFiles/protoc-gen-upb.dir/upb_generator/cmake/google/protobuf/compiler/plugin.upb_minitable.c.o" -o ../../bin/protoc-gen-upb-27.2.0  -Wl,-rpath,"\$ORIGIN/../lib" ../../lib/libprotobuf.a ../../lib/libupb.a ../../lib/libabsl_die_if_null.so.2401.0.0 ../../lib/libabsl_log_initialize.so.2401.0.0 ../../lib/libabsl_statusor.so.2401.0.0 ../../lib/libabsl_log_internal_check_op.so.2401.0.0 ../../lib/libabsl_leak_check.so.2401.0.0 ../../lib/libabsl_log_internal_conditions.so.2401.0.0 ../../lib/libabsl_log_internal_message.so.2401.0.0 ../../lib/libabsl_log_internal_nullguard.so.2401.0.0 ../../lib/libabsl_examine_stack.so.2401.0.0 ../../lib/libabsl_log_internal_format.so.2401.0.0 ../../lib/libabsl_log_internal_proto.so.2401.0.0 ../../lib/libabsl_log_internal_log_sink_set.so.2401.0.0 ../../lib/libabsl_log_sink.so.2401.0.0 ../../lib/libabsl_log_entry.so.2401.0.0 ../../lib/libabsl_flags_internal.so.2401.0.0 ../../lib/libabsl_flags_marshalling.so.2401.0.0 ../../lib/libabsl_flags_reflection.so.2401.0.0 ../../lib/libabsl_flags_config.so.2401.0.0 ../../lib/libabsl_flags_program_name.so.2401.0.0 ../../lib/libabsl_flags_private_handle_accessor.so.2401.0.0 ../../lib/libabsl_flags_commandlineflag.so.2401.0.0 ../../lib/libabsl_flags_commandlineflag_internal.so.2401.0.0 ../../lib/libabsl_log_internal_globals.so.2401.0.0 ../../lib/libabsl_log_globals.so.2401.0.0 ../../lib/libabsl_vlog_config_internal.so.2401.0.0 ../../lib/libabsl_log_internal_fnmatch.so.2401.0.0 ../../lib/libabsl_raw_hash_set.so.2401.0.0 ../../lib/libabsl_hash.so.2401.0.0 ../../lib/libabsl_city.so.2401.0.0 ../../lib/libabsl_low_level_hash.so.2401.0.0 ../../lib/libabsl_hashtablez_sampler.so.2401.0.0 ../../lib/libabsl_random_distributions.so.2401.0.0 ../../lib/libabsl_random_seed_sequences.so.2401.0.0 ../../lib/libabsl_random_internal_pool_urbg.so.2401.0.0 ../../lib/libabsl_random_internal_randen.so.2401.0.0 ../../lib/libabsl_random_internal_randen_hwaes.so.2401.0.0 ../../lib/libabsl_random_internal_randen_hwaes_impl.so.2401.0.0 ../../lib/libabsl_random_internal_randen_slow.so.2401.0.0 ../../lib/libabsl_random_internal_platform.so.2401.0.0 ../../lib/libabsl_random_internal_seed_material.so.2401.0.0 ../../lib/libabsl_random_seed_gen_exception.so.2401.0.0 ../../lib/libabsl_status.so.2401.0.0 ../../lib/libabsl_cord.so.2401.0.0 ../../lib/libabsl_cordz_info.so.2401.0.0 ../../lib/libabsl_cord_internal.so.2401.0.0 ../../lib/libabsl_cordz_functions.so.2401.0.0 ../../lib/libabsl_exponential_biased.so.2401.0.0 ../../lib/libabsl_cordz_handle.so.2401.0.0 ../../lib/libabsl_crc_cord_state.so.2401.0.0 ../../lib/libabsl_crc32c.so.2401.0.0 ../../lib/libabsl_crc_internal.so.2401.0.0 ../../lib/libabsl_crc_cpu_detect.so.2401.0.0 ../../lib/libabsl_bad_optional_access.so.2401.0.0 ../../lib/libabsl_strerror.so.2401.0.0 ../../lib/libabsl_str_format_internal.so.2401.0.0 ../../lib/libabsl_synchronization.so.2401.0.0 ../../lib/libabsl_stacktrace.so.2401.0.0 ../../lib/libabsl_symbolize.so.2401.0.0 ../../lib/libabsl_debugging_internal.so.2401.0.0 ../../lib/libabsl_demangle_internal.so.2401.0.0 ../../lib/libabsl_graphcycles_internal.so.2401.0.0 ../../lib/libabsl_kernel_timeout_internal.so.2401.0.0 ../../lib/libabsl_malloc_internal.so.2401.0.0 ../../lib/libabsl_time.so.2401.0.0 ../../lib/libabsl_civil_time.so.2401.0.0 ../../lib/libabsl_time_zone.so.2401.0.0 ../../lib/libabsl_bad_variant_access.so.2401.0.0 ../../lib/libutf8_validity.a ../../lib/libabsl_strings.so.2401.0.0 ../../lib/libabsl_int128.so.2401.0.0 ../../lib/libabsl_strings_internal.so.2401.0.0 ../../lib/libabsl_string_view.so.2401.0.0 ../../lib/libabsl_base.so.2401.0.0 ../../lib/libabsl_spinlock_wait.so.2401.0.0 ../../lib/libabsl_throw_delegate.so.2401.0.0 ../../lib/libabsl_raw_logging_internal.so.2401.0.0 ../../lib/libabsl_log_severity.so.2401.0.0 ../../lib/libutf8_range.a 
/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: ../../lib/libabsl_log_internal_message.so.2401.0.0: undefined reference to `__atomic_compare_exchange_1'
/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: ../../lib/libabsl_log_internal_globals.so.2401.0.0: undefined reference to `__atomic_exchange_1'
collect2: error: ld returned 1 exit status
gmake[2]: *** [_deps/protobuf-build/CMakeFiles/protoc-gen-upb.dir/build.make:257: bin/protoc-gen-upb-27.2.0] Error 1
gmake[2]: Leaving directory '/home/project/build_cross/riscv64'
gmake[1]: *** [CMakeFiles/Makefile2:4663: _deps/protobuf-build/CMakeFiles/protoc-gen-upb.dir/all] Error 2
gmake[1]: Leaving directory '/home/project/build_cross/riscv64'
gmake: *** [Makefile:146: all] Error 2

What version of Abseil are you using?

message(CHECK_START "Fetching Abseil-cpp")
list(APPEND CMAKE_MESSAGE_INDENT "  ")
set(ABSL_USE_SYSTEM_INCLUDES ON)
# We want Abseil to declare what C++ standard it was compiled with.
set(ABSL_PROPAGATE_CXX_STD ON)
# We want Abseil to keep the INSTALL rules enabled, even though it is a
# subproject. Otherwise the install rules in this project break.
set(ABSL_ENABLE_INSTALL ON)
FetchContent_Declare(
  absl
  GIT_REPOSITORY "https://github.com/abseil/abseil-cpp.git"
  GIT_TAG "20240116.2"
  GIT_SHALLOW TRUE
  PATCH_COMMAND git apply --ignore-whitespace "${CMAKE_CURRENT_LIST_DIR}/../patches/abseil-cpp-20240116.2.patch"
  OVERRIDE_FIND_PACKAGE)
FetchContent_MakeAvailable(absl)
list(POP_BACK CMAKE_MESSAGE_INDENT)
message(CHECK_PASS "fetched")

note: the patch is to fix the RUNPATH in all absl shared library since my super project build use CMAKE_BUILD_WITH_INSTALL_RPATH TRUE.
(PR incoming -_-)

What operating system and version are you using?

run inside a docker:

%head -3 ci/docker/toolchain/Dockerfile
# Create a virtual environment with all tools installed
# ref: https://hub.docker.com/_/ubuntu
FROM ubuntu:latest AS env

What compiler and version are you using?

From tools/cross_compile.sh

      local -r TOOLCHAIN_URL="https://toolchains.bootlin.com/downloads/releases/toolchains/riscv64-lp64d/tarballs/riscv64-lp64d--glibc--stable-2022.08-1.tar.bz2"
      local -r GCC_PREFIX="riscv64"

seems to be a gcc version 11.3.0 (Buildroot 2021.11-4428-g6b6741b)

make --directory=ci sh_riscv64_devel
# generate the cmake toolchain file to find the compiler path
root@corentinl:/# ./tools/build_cross.sh riscv64
...
root@corentinl:/home/project# grep "set(tools" build_cross/archives/toolchain_riscv64.cmake 
set(tools /home/project/build_cross/archives/riscv64)
root@corentinl:/home/project# grep "CXX_COMPILER" build_cross/archives/toolchain_riscv64.cmake 
set(CMAKE_CXX_COMPILER ${tools}/bin/riscv64-linux-g++)

root@corentinl:/home/project# /home/project/build_cross/archives/riscv64/bin/riscv64-linux-g++ -v
Using built-in specs.
COLLECT_GCC=/home/project/build_cross/archives/riscv64/bin/riscv64-linux-g++.br_real
COLLECT_LTO_WRAPPER=/home/project/build_cross/archives/riscv64/bin/../libexec/gcc/riscv64-buildroot-linux-gnu/11.3.0/lto-wrapper
Target: riscv64-buildroot-linux-gnu
Configured with: ./configure --prefix=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1 --sysconfdir=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1/etc --enable-static --target=riscv64-buildroot-linux-gnu --with-sysroot=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1/riscv64-buildroot-linux-gnu/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --enable-plugins --enable-lto --with-gmp=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1 --with-mpc=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1 --with-mpfr=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1 --with-pkgversion='Buildroot 2021.11-4428-g6b6741b' --with-bugurl=http://bugs.buildroot.net/ --without-zstd --disable-libquadmath --disable-libquadmath-support --enable-tls --enable-threads --without-isl --without-cloog --with-arch=rv64imafd --with-abi=lp64d --enable-languages=c,c++,fortran --with-build-time-tools=/builds/buildroot.org/toolchains-builder/build/riscv64-lp64d--glibc--stable-2022.08-1/riscv64-buildroot-linux-gnu/bin --enable-shared --enable-libgomp
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.3.0 (Buildroot 2021.11-4428-g6b6741b) 
COMPILER_PATH=/home/project/build_cross/archives/riscv64/bin/../libexec/gcc/riscv64-buildroot-linux-gnu/11.3.0/:/home/project/build_cross/archives/riscv64/bin/../libexec/gcc/:/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/bin/
LIBRARY_PATH=/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/:/home/project/build_cross/archives/riscv64/bin/../lib/gcc/:/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/lib/:/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/lib/:/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/usr/lib/
COLLECT_GCC_OPTIONS='-fstack-protector-strong' '-fPIE' '-pie' '-v' '-shared-libgcc' '-march=rv64imafd' '-mabi=lp64d' '-misa-spec=2.2' '-march=rv64imafd' '-dumpdir' 'a.'
 /home/project/build_cross/archives/riscv64/bin/../libexec/gcc/riscv64-buildroot-linux-gnu/11.3.0/collect2 -plugin /home/project/build_cross/archives/riscv64/bin/../libexec/gcc/riscv64-buildroot-linux-gnu/11.3.0/liblto_plugin.so -plugin-opt=/home/project/build_cross/archives/riscv64/bin/../libexec/gcc/riscv64-buildroot-linux-gnu/11.3.0/lto-wrapper -plugin-opt=-fresolution=/tmp/ccucnLsL.res -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --sysroot=/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot --eh-frame-hdr -melf64lriscv -dynamic-linker /lib/ld-linux-riscv64-lp64d.so.1 -pie /home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/usr/lib/Scrt1.o /home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/crti.o /home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/crtbeginS.o -L/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0 -L/home/project/build_cross/archives/riscv64/bin/../lib/gcc -L/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/lib -L/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/lib -L/home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/usr/lib -z now -z relro -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/crtendS.o /home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/crtn.o
/home/project/build_cross/archives/riscv64/bin/../lib/gcc/riscv64-buildroot-linux-gnu/11.3.0/../../../../riscv64-buildroot-linux-gnu/bin/ld: /home/project/build_cross/archives/riscv64/riscv64-buildroot-linux-gnu/sysroot/usr/lib/Scrt1.o: in function `_start':
(.text+0x8): undefined reference to `main'
collect2: error: ld returned 1 exit status

What build system are you using?

%make --directory=ci sh_riscv64_env         
root@corentinl:/# cmake --version
cmake version 3.28.3

Additional context

No response