Cross compiler riscv64 building

[Jonathan Wakely]

On Wed, 8 Feb 2023 at 11:12, Sagar Acharya via Gcc-help
<gcc-help@gcc.gnu.org> wrote:
>
> How do I configure and build a cross compiler for target riscv64 of latest gcc on aarch64 musl based void linux.
>
> I have it's default gcc installed which I want to use for compiling.

See https://wiki.osdev.org/GCC_Cross-Compiler

In summary:
Download the gcc and binutils source.
Configure binutils with --prefix=$DIR --target=riscv64-unknown-elf for
some $DIR.
Run make && make install.
Configure gcc with the same --prefix and --target options.
Run make && make install.

If you want a hosted target like riscv64-unknown-linux-gnu for
compiling user-space programs, then you'll need to have a copy of the
target headers and libraries available, and point GCC to them with the
--sysroot option.
See https://wiki.osdev.org/Hosted_GCC_Cross-Compiler