Fixed build errors

Author: SChernykh

.github/workflows/c-cpp.yml

@@ -334,7 +334,7 @@ jobs:
     strategy:
       matrix:
         config:
-          - {os: ubuntu-22.04, flags: "-fuse-linker-plugin -ffunction-sections"}
+          - {os: ubuntu-24.04, flags: "--target=riscv64-linux-gnu -fuse-ld=lld -ffunction-sections -fdata-sections -Wl,-s -Wl,--gc-sections"}
 
     steps:
     - name: Setup Alpine Linux
@@ -347,7 +347,12 @@ jobs:
       run: |
         sudo apt update
         sudo apt install -y git build-essential cmake gcc-riscv64-linux-gnu g++-riscv64-linux-gnu binutils-riscv64-linux-gnu xz-utils
-        sudo cp /usr/riscv64-linux-gnu/lib/* /home/runner/rootfs/alpine-latest-riscv64/lib
+
+    - name: Install clang
+      run: |
+        wget https://apt.llvm.org/llvm.sh
+        chmod +x llvm.sh
+        sudo ./llvm.sh 21 all
 
     - name: Checkout repository
       uses: actions/checkout@v4
@@ -357,30 +362,30 @@ jobs:
     - name: Build libcurl
       run: |
         cd external/src/curl
-        cmake . -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../../cmake/riscv64_toolchain.cmake -DCMAKE_C_FLAGS="-Os -flto=auto ${{ matrix.config.flags }}" -DBUILD_CURL_EXE=OFF -DBUILD_SHARED_LIBS=OFF -DCURL_DISABLE_INSTALL=ON -DCURL_ENABLE_EXPORT_TARGET=OFF -DCURL_DISABLE_HEADERS_API=ON -DCURL_DISABLE_BINDLOCAL=ON -DBUILD_LIBCURL_DOCS=OFF -DBUILD_MISC_DOCS=OFF -DENABLE_CURL_MANUAL=OFF -DCURL_ZLIB=OFF -DCURL_BROTLI=OFF -DCURL_ZSTD=OFF -DCURL_DISABLE_ALTSVC=ON -DCURL_DISABLE_COOKIES=ON -DCURL_DISABLE_DOH=ON -DCURL_DISABLE_GETOPTIONS=ON -DCURL_DISABLE_HSTS=ON -DCURL_DISABLE_LIBCURL_OPTION=ON -DCURL_DISABLE_MIME=ON -DCURL_DISABLE_NETRC=ON -DCURL_DISABLE_NTLM=ON -DCURL_DISABLE_PARSEDATE=ON -DCURL_DISABLE_PROGRESS_METER=ON -DCURL_DISABLE_SHUFFLE_DNS=ON -DCURL_DISABLE_SOCKETPAIR=ON -DCURL_DISABLE_VERBOSE_STRINGS=ON -DCURL_DISABLE_WEBSOCKETS=ON -DHTTP_ONLY=ON -DCURL_ENABLE_SSL=OFF -DUSE_LIBIDN2=OFF -DCURL_USE_LIBPSL=OFF -DCURL_USE_LIBSSH2=OFF -DENABLE_UNIX_SOCKETS=OFF -DCURL_DISABLE_TESTS=ON -DUSE_NGHTTP2=OFF -DBUILD_EXAMPLES=OFF -DP2POOL_BORINGSSL=ON -DCURL_DISABLE_SRP=ON -DCURL_DISABLE_AWS=ON -DCURL_DISABLE_BASIC_AUTH=ON -DCURL_DISABLE_BEARER_AUTH=ON -DCURL_DISABLE_KERBEROS_AUTH=ON -DCURL_DISABLE_NEGOTIATE_AUTH=ON -DOPENSSL_INCLUDE_DIR=../grpc/third_party/boringssl-with-bazel/include
+        cmake . -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../../cmake/riscv64_toolchain_clang_21.cmake -DCMAKE_C_FLAGS="-Os -flto ${{ matrix.config.flags }}" -DBUILD_CURL_EXE=OFF -DBUILD_SHARED_LIBS=OFF -DCURL_DISABLE_INSTALL=ON -DCURL_ENABLE_EXPORT_TARGET=OFF -DCURL_DISABLE_HEADERS_API=ON -DCURL_DISABLE_BINDLOCAL=ON -DBUILD_LIBCURL_DOCS=OFF -DBUILD_MISC_DOCS=OFF -DENABLE_CURL_MANUAL=OFF -DCURL_ZLIB=OFF -DCURL_BROTLI=OFF -DCURL_ZSTD=OFF -DCURL_DISABLE_ALTSVC=ON -DCURL_DISABLE_COOKIES=ON -DCURL_DISABLE_DOH=ON -DCURL_DISABLE_GETOPTIONS=ON -DCURL_DISABLE_HSTS=ON -DCURL_DISABLE_LIBCURL_OPTION=ON -DCURL_DISABLE_MIME=ON -DCURL_DISABLE_NETRC=ON -DCURL_DISABLE_NTLM=ON -DCURL_DISABLE_PARSEDATE=ON -DCURL_DISABLE_PROGRESS_METER=ON -DCURL_DISABLE_SHUFFLE_DNS=ON -DCURL_DISABLE_SOCKETPAIR=ON -DCURL_DISABLE_VERBOSE_STRINGS=ON -DCURL_DISABLE_WEBSOCKETS=ON -DHTTP_ONLY=ON -DCURL_ENABLE_SSL=OFF -DUSE_LIBIDN2=OFF -DCURL_USE_LIBPSL=OFF -DCURL_USE_LIBSSH2=OFF -DENABLE_UNIX_SOCKETS=OFF -DCURL_DISABLE_TESTS=ON -DUSE_NGHTTP2=OFF -DBUILD_EXAMPLES=OFF -DP2POOL_BORINGSSL=ON -DCURL_DISABLE_SRP=ON -DCURL_DISABLE_AWS=ON -DCURL_DISABLE_BASIC_AUTH=ON -DCURL_DISABLE_BEARER_AUTH=ON -DCURL_DISABLE_KERBEROS_AUTH=ON -DCURL_DISABLE_NEGOTIATE_AUTH=ON -DOPENSSL_INCLUDE_DIR=../grpc/third_party/boringssl-with-bazel/include
         make -j$(nproc)
 
     - name: Build libuv
       run: |
         cd external/src/libuv
         mkdir build
         cd build
-        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../../cmake/riscv64_toolchain.cmake -DCMAKE_C_FLAGS='-Os -flto=auto ${{ matrix.config.flags }}' -DBUILD_TESTING=OFF -DLIBUV_BUILD_SHARED=OFF
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../../cmake/riscv64_toolchain_clang_21.cmake -DCMAKE_C_FLAGS='-Os -flto ${{ matrix.config.flags }}' -DBUILD_TESTING=OFF -DLIBUV_BUILD_SHARED=OFF
         make -j$(nproc)
 
     - name: Build libzmq
       run: |
         cd external/src/libzmq
         mkdir build
         cd build
-        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../../cmake/riscv64_toolchain.cmake -DCMAKE_C_FLAGS='-Os -flto=auto ${{ matrix.config.flags }}' -DCMAKE_CXX_FLAGS='-Os -flto=auto ${{ matrix.config.flags }}' -DWITH_LIBSODIUM=OFF -DWITH_LIBBSD=OFF -DBUILD_TESTS=OFF -DWITH_DOCS=OFF -DENABLE_DRAFTS=OFF -DBUILD_SHARED=OFF -DCMAKE_POLICY_VERSION_MINIMUM="3.5"
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../../cmake/riscv64_toolchain_clang_21.cmake -DCMAKE_C_FLAGS='-Os -flto ${{ matrix.config.flags }}' -DCMAKE_CXX_FLAGS='-Os -flto ${{ matrix.config.flags }}' -DWITH_LIBSODIUM=OFF -DWITH_LIBBSD=OFF -DBUILD_TESTS=OFF -DWITH_DOCS=OFF -DENABLE_DRAFTS=OFF -DBUILD_SHARED=OFF -DCMAKE_POLICY_VERSION_MINIMUM="3.5"
         make -j$(nproc)
 
     - name: Build p2pool
       run: |
         mkdir build
         cd build
-        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../cmake/riscv64_toolchain.cmake -DCMAKE_C_FLAGS='${{ matrix.config.flags }} -Wl,-s -Wl,--gc-sections' -DCMAKE_CXX_FLAGS='${{ matrix.config.flags }} -Wl,-s -Wl,--gc-sections' -DSTATIC_LIBS=ON -DARCH_ID=riscv64 -DCMAKE_POLICY_VERSION_MINIMUM="3.5"
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../cmake/riscv64_toolchain_clang_21.cmake -DCMAKE_C_FLAGS='${{ matrix.config.flags }} -Wno-unused-command-line-argument' -DCMAKE_CXX_FLAGS='${{ matrix.config.flags }} -Wno-unused-command-line-argument' -DOPENSSL_NO_ASM=ON -DSTATIC_LIBS=ON -DARCH_ID=riscv64 -DCMAKE_POLICY_VERSION_MINIMUM="3.5"
         make -j$(nproc) p2pool
 
     - name: Run self-test
@@ -401,7 +406,7 @@ jobs:
         cd tests
         mkdir build
         cd build
-        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../cmake/riscv64_toolchain.cmake -DCMAKE_C_FLAGS='${{ matrix.config.flags }} -Wl,-s -Wl,--gc-sections' -DCMAKE_CXX_FLAGS='${{ matrix.config.flags }} -Wl,-s -Wl,--gc-sections' -DSTATIC_LIBS=ON -DARCH_ID=riscv64 -DCMAKE_POLICY_VERSION_MINIMUM="3.5"
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../../cmake/riscv64_toolchain_clang_21.cmake -DCMAKE_C_FLAGS='${{ matrix.config.flags }} -Wno-unused-command-line-argument' -DCMAKE_CXX_FLAGS='${{ matrix.config.flags }} -Wno-unused-command-line-argument' -DSTATIC_LIBS=ON -DARCH_ID=riscv64 -DCMAKE_POLICY_VERSION_MINIMUM="3.5"
         make -j$(nproc) p2pool_tests
 
     - name: Prepare test data

cmake/riscv64_toolchain_clang_21.cmake

@@ -0,0 +1,9 @@
+set(CMAKE_CROSSCOMPILING TRUE)
+
+set(CMAKE_SYSTEM_NAME Linux)
+set(CMAKE_SYSTEM_PROCESSOR riscv64)
+
+set(CMAKE_C_COMPILER clang-21)
+set(CMAKE_CXX_COMPILER clang++-21)
+set(CMAKE_ASM_COMPILER riscv64-linux-gnu-as)
+set(CMAKE_STRIP riscv64-linux-gnu-strip)