Instalar_RISCV_Toolchain

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Author: Daniela Luiza Catelan
Professor at Federal University of Mato Grosso do Sul
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INSTALL RISCV-GNU-TOOLCHAIN
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1: RISCV-GNU-TOOLCHAIN
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sudo apt-get install autoconf automake autotools-dev curl python3 libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev git

git clone https://github.com/riscv/riscv-gnu-toolchain

cd riscv-gnu-toolchain

./configure --prefix=/opt/riscv --with-arch=rv32i --with-abi=ilp32

 sudo make

 cd ..

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2: RISCV-GCC-PREBUILT - Opcional (instalei para usar com o NEORV32)
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$ wget https://github.com/stnolting/riscv-gcc-prebuilt/releases/tag/rv32i-4.0.0/riscv32-unknown-elf.gcc-12.1.0.tar.gz
OU
site: https://github.com/stnolting/riscv-gcc-prebuilt/releases

$ sudo mkdir /opt/riscv

->Se pegar no site entra em cd downloads
$ cd Downloads
->Continua daqui se usar o wget e depois de entrar na pasta downloads
$ sudo tar -xzf riscv32-unknown-elf.gcc-12.1.0.tar.gz -C /opt/riscv/
$ cd ..
$ export PATH=$PATH:/opt/riscv/bin
$ riscv32-unknown-elf-gcc -v
$ ldd /opt/riscv32i/bin/riscv32-unknown-elf-gcc
    linux-vdso.so.1
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6
    /lib64/ld-linux-x86-64.so.2

$ export PATH=$PATH:/opt/riscv/bin