Porting newlib with custom linking

[Bandhav Veluri]

Got it, thanks!

On Mon, Apr 22, 2019, 11:00 AM Jim Wilson <jimw@sifive.com> wrote:

> On Sun, Apr 21, 2019 at 10:19 AM Bandhav Veluri
> <bandhav.veluri00@gmail.com> wrote:
> > Thanks a lot Jim! Yes, specs file feels like an elegant way to do it. Is
> there a way I can edit the default specs file?
> > We are working on a fork of riscv-newlib and intend that installation of
> our newlib to be separate. So it's okay to change the default behaviour of
> gcc.
>
> "riscv64-unknown-elf-gcc -dumpspecs > specs" will give you the default
> specs file.  If you modify this and put this in the gcc install dir
> (same place where libgcc.a is installed), then gcc will use this specs
> file instead of the built-in default specs.  If you run gcc with the
> -v option, it will tell you whether it is using the built-in specs or
> reading them from a file.  You can use this to confirm that it is
> using your modified specs file.  I think any dir in the libraries:
> line of "gcc --print-search-dirs" should work, but I normally use the
> gcc install dir.
>
> Jim
>