Newlib provided syscalls on SH

[Jeff Johnston]

Hi Yilin,

You will need to patch the libc/sys/sh/Makefile.inc to match what is done
in libc/sys/arm/Makefile.inc.  This is fairly simple.  When you are done,
then you can
use the --disable-newlib-supplied-syscalls to omit whatever you want in the
libc/sys/sh directory.   Feel free to submit the patch here when you have
it working to your satisfaction.

-- Jeff J.

On Mon, Aug 8, 2022 at 3:56 AM imi415 via Newlib <newlib@sourceware.org>
wrote:

> Hi all,
>
> I'm trying to build newlib for SuperH(sh) architecture, and the syscalls
> under the "newlib/libc/sys/sh" directory
>
> are built no matter whether "--disable-newlib-supplied-syscalls" is
> provided.The target is a bare-metal target
>
> so I need to provide these syscalls myself, same as other bare-metal
> targets do.
>
> I have checked the Makefile.am under the directory and there seems to be
> no special treatments for the "MAY_SUPPLY_SYSCALLS" option.
>
> Do I have to patch newlib for this or is there another way overriding
> these syscalls?
>
> P.S. The build environment is generated by Crosstool-NG.
>
>
> Thanks & Best Regards,
>
> Yilin Sun
>
>