Difference between revisions of "Bare metal RISC-V GCC 9.3.0 cross compiler instructions"
(→Build and install newlib) |
(→Build and install riscv-openocd) |
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Line 53: | Line 53: | ||
make -j8 all && make install | make -j8 all && make install | ||
− | == Build and install riscv-openocd == | + | == Build and install riscv-openocd (optional) == |
cd $HOME/src | cd $HOME/src |
Revision as of 12:48, 17 March 2020
Contents
- 1 Introduction
- 2 Create directories
- 3 Get GCC, GDB and binutils
- 4 Download prerequisites
- 5 Build and install binutils
- 6 Build and install gdb
- 7 Build and install bare metal gcc
- 8 Build and install newlib
- 9 Build and install newlib gcc
- 10 Build and install riscv-openocd (optional)
- 11 Add tools to PATH and set RISCV
Introduction
We'll build a GCC 9.3.0 targeting bare metal RISC-V.
Create directories
cd $HOME mkdir -p src obj/{binutils-build,gcc-build,gdb-build,newlib-build}
Get GCC, GDB and binutils
curl https://ftp.gnu.org/gnu/binutils/binutils-2.34.tar.gz | tar -C $HOME/src -xf - curl https://ftp.gnu.org/gnu/gdb/gdb-9.1.tar.gz | tar -C $HOME/src -xf - curl https://ftp.gnu.org/gnu/gcc/gcc-9.3.0/gcc-9.3.0.tar.gz | tar -C $HOME/src -xf - curl ftp://sourceware.org/pub/newlib/newlib-3.3.0.tar.gz | tar -C $HOME/src -xf -
Download prerequisites
cd $HOME/src/gcc-9.3.0 ./contrib/download_prerequisites
Build and install binutils
cd $HOME/obj/binutils-build ../../src/binutils-2.34/configure --prefix $HOME/xgcc --bindir $HOME/bin --target riscv64-unknown-elf --enable-multilib make -j8 && make install
Build and install gdb
cd $HOME/obj/gdb-build ../../src/gdb-9.1/configure --prefix $HOME/xgcc --bindir $HOME/bin --target riscv64-unknown-elf --enable-multilib make -j8 && make install
Build and install bare metal gcc
cd $HOME/obj/gcc-build ../../src/gcc-9.3.0/configure --prefix $HOME/xgcc --bindir $HOME/bin --target riscv64-unknown-elf --enable-multilib --enable-languages=c --without-headers make -j8 all-gcc && make install-gcc
Build and install newlib
cd $HOME/obj/newlib-build ../../src/newlib-3.3.0/configure --prefix $HOME/xgcc --bindir $HOME/bin --target riscv64-unknown-elf --enable-multilib make -j8 all && make install
Build and install newlib gcc
rm -rf $HOME/obj/gcc-build && mkdir -p $HOME/obj/gcc-build cd $HOME/obj/gcc-build ../../src/gcc-9.3.0/configure --prefix $HOME/xgcc --bindir $HOME/bin --target riscv64-unknown-elf --enable-multilib --enable-languages=c --with-newlib make -j8 all && make install
Build and install riscv-openocd (optional)
cd $HOME/src git clone --recursive git@github.com:riscv/riscv-openocd.git cd $HOME/src/riscv-openocd # brew install pkg-config libtool automake autoconf # required by bootstrap ./bootstrap ./configure --prefix=$HOME/riscv --enable-remote-bitbang --enable-jtag_vpi make -j8 && make install
Add tools to PATH and set RISCV
printf 'PATH=$HOME/riscv/bin:$PATH\nRISCV=$HOME/riscv\nexport RISCV\n' >> $HOME/lib/profile.local
Also, if you have installed spike from a repository, you might want to symlink it into RISCV/bin
.
ln -s /usr/local/bin/spike $HOME/riscv/bin/spike