Difference between revisions of "Bare metal RISC-V GCC 9.3.0 cross compiler instructions"
(→Build and install newlib gcc) |
(→Build and install riscv-openocd) |
||
Line 60: | Line 60: | ||
# brew install pkg-config libtool automake autoconf # required by bootstrap | # brew install pkg-config libtool automake autoconf # required by bootstrap | ||
./bootstrap | ./bootstrap | ||
− | ./configure --prefix=$HOME/ | + | ./configure --prefix=$HOME/riscv --enable-remote-bitbang --enable-jtag_vpi |
make -j8 && make install | make -j8 && make install |
Revision as of 08:33, 13 November 2019
Contents
Introduction
We'll build a GCC 9.2.0 targeting bare metal RISC-V. Many RISC-V tools expect a $RISCV
variable pointing at the toolchain, so we can't use split --prefix
and --bindir
as we usually use.
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-2.33.1.tar.gz | tar -C $HOME/src -xf - curl https://ftp.gnu.org/gnu/gdb/gdb-8.3.tar.gz | tar -C $HOME/src -xf - curl https://ftp.gnu.org/gnu/gcc/gcc-9.2.0/gcc-9.2.0.tar.gz | tar -C $HOME/src -xf - curl ftp://sourceware.org/pub/newlib/newlib-3.1.0.tar.gz | tar -C $HOME/src -xf -
Download prerequisites
cd $HOME/src/gcc-9.2.0 ./contrib/download_prerequisites
Build and install binutils
cd $HOME/obj/binutils-build ../../src/binutils-2.33.1/configure --prefix $HOME/riscv --target riscv64-unknown-elf --enable-multilib make -j8 && make install
Build and install gdb
cd $HOME/obj/gdb-build ../../src/gdb-8.3/configure --prefix $HOME/riscv --target riscv64-unknown-elf --enable-multilib make -j8 && make install
Build and install bare metal gcc
cd $HOME/obj/gcc-build ../../src/gcc-9.2.0/configure --prefix $HOME/riscv --target riscv64-unknown-elf --enable-multilib --enable-languages=c --with-gnu-as --with-gnu-ld --without-headers --with-newlib make -j8 all-gcc && make install-gcc
Build and install newlib
cd $HOME/obj/newlib-build ../../src/newlib-3.1.0/configure --prefix $HOME/riscv --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-9.2.0/configure --prefix $HOME/riscv --target riscv64-unknown-elf --enable-multilib --enable-languages=c --with-gnu-as --with-gnu-ld --with-newlib make -j8 all && make install
Build and install riscv-openocd
cd $HOME/src git clone 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