* Newlib provided syscalls on SH
@ 2022-08-08 7:56 imi415
2022-08-09 19:29 ` Jeff Johnston
0 siblings, 1 reply; 2+ messages in thread
From: imi415 @ 2022-08-08 7:56 UTC (permalink / raw)
To: newlib
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Newlib provided syscalls on SH
2022-08-08 7:56 Newlib provided syscalls on SH imi415
@ 2022-08-09 19:29 ` Jeff Johnston
0 siblings, 0 replies; 2+ messages in thread
From: Jeff Johnston @ 2022-08-09 19:29 UTC (permalink / raw)
To: imi415; +Cc: Newlib
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
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-08-09 19:29 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-08-08 7:56 Newlib provided syscalls on SH imi415
2022-08-09 19:29 ` Jeff Johnston
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).