View source for Bare metal ARM GCC 9.3.0 cross compiler instructions

[[Category:GCC]]

== Introduction ==

We'll build a GCC 9.3.0 targeting bare metal ARM.

== 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 arm-none-eabi --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 arm-none-eabi --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 arm-none-eabi --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 arm-none-eabi --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 arm-none-eabi --enable-multilib --enable-languages=c --with-newlib
 make -j8 all && make install