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toolchains-dev Directory Reference

## Detailed Description

# LoongArch64

You can now build and run the LoongArch64 code as needed: GCC >= 14.1 Binutils >= 2.41 QEMU >= 9.2

Note that the compiler may be named loongarch64-linux-gnu-g++, without the unknown part. Please adjust to your system.

$ sudo curl -L https://github.com/loongson/build-tools/releases/download/2025.06.06/qemu-loongarch64 --output /opt/qemu-loongarch64
$ sudo chmod +x /opt/qemu-loongarch64
$ export PATH=/opt:$PATH
$ export QEMU_LD_PREFIX="/usr/loongarch64-linux-gnu" # ubuntu 24.04
$ export QEMU_CPU="la464"
$ mkdir build && cd build
$ cmake -DCMAKE_TOOLCHAIN_FILE=cmake/toolchains-dev/loongarch64.cmake -DADA_TESTING=ON ../
$ make

Running tests with qemu

$ make test
or
$ ctest --output-on-failure --test-dir build
or
$ qemu-loongarch64 build/singleheader/cdemo

# RISC-V Vector Extension

The RISC-V Vector optimizations are supported by GCC-13, CLANG-16 and above.

Native builds will use the RVV code, if the specified -march ISA string or default target ISA supports the V extension.

For cross compilation, you may need to adjust the cross compiler target prefix in the toolchain file from riscv64-linux-gnu to e.g. riscv64-unknown-linux-gnu when using https://github.com/riscv-collab/riscv-gnu-toolchain.

# For Debian/Ubuntu
$ sudo apt install g++-riscv64-linux-gnu qemu-system-riscv qemu-user
$ mkdir build; cd build
$ export QEMU_LD_PREFIX="/usr/riscv64-linux-gnu"
$ export QEMU_CPU="rv64,v=on"
$ mkdir build && cd build
$ cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains-dev/riscv64-rvv.cmake -DADA_TESTING=ON ..
$ cmake --build -j $(nproc)