[PATCH] Arm - exceptions stack pointer initialization hook

[Alexander Fedotov]

Hi Tamar
Ok, I will update patches a bit later. It seems crt0.S in libgloss and
libc aren't up to sync long time. I don't see semihosting v2 changes
there as well...
Alex

On Wed, Feb 6, 2019 at 2:32 PM Tamar Christina <Tamar.Christina@arm.com> wrote:
>
> Hi All,
>
> As a side note,
>
> As Richard mentioned any changes here should be mirrored to the newlib/libc/sys/arm/* folder.
>
> Thanks,
> Tamar
>
> > -----Original Message-----
> > From: Tamar Christina
> > Sent: Tuesday, February 5, 2019 12:42
> > To: Alexander Fedotov <alfedotov@gmail.com>; Newlib
> > <newlib@sourceware.org>; Richard Earnshaw <Richard.Earnshaw@arm.com>
> > Cc: nd <nd@arm.com>
> > Subject: RE: [PATCH] Arm - exceptions stack pointer initialization hook
> >
> > Hi all,
> >
> > This patch looks good to me as well (but I'm not a maintainer so can't
> > approve), It's mostly just refactoring, the only functional change is that
> > _exceptions_stack_init is now also called in the case of semihosting, which I
> > think is OK as well, but would like Richard to quickly confirm.
> >
> > I'll run it by him when he's  back,
> >
> > Thanks,
> > Tamar
> >
> > > -----Original Message-----
> > > From: Alexander Fedotov <alfedotov@gmail.com>
> > > Sent: Tuesday, February 5, 2019 10:41
> > > To: Newlib <newlib@sourceware.org>; Richard Earnshaw
> > > <Richard.Earnshaw@arm.com>; Tamar Christina
> > <Tamar.Christina@arm.com>;
> > > Alexander Fedotov <alfedotov@gmail.com>
> > > Subject: Re: [PATCH] Arm - exceptions stack pointer initialization
> > > hook
> > >
> > > Eventually I want to push all the changes from there:
> > > 1.
> > >
> > https://github.com/alfedotov/newlib/commit/58ce6f19eb457a2c2b700dfe71
> > > 798ef09ba63e10
> > > 2.
> > >
> > https://github.com/alfedotov/newlib/commit/4cabb1f7587304d1c891da59b
> > > d1871fcc8668ae5
> > > 3.
> > >
> > https://github.com/alfedotov/newlib/commit/7d38977d4baaecb43fc47f34d7
> > > 21a3df23334400
> > > 4.
> > >
> > https://github.com/alfedotov/newlib/commit/e8f094f6729ade24a149d1d681
> > > 6876e7ccadae0a
> > >
> > > General idea behind of all these changes is to provide hooks for
> > > flexibility (including semihosting when debug tap is used) and improve
> > > readability of existing crt0 code. At the moment it is a total mess of ifdefs...
> > >
> > > Alex
> > >
> > > On Tue, Feb 5, 2019 at 1:32 PM Corinna Vinschen <vinschen@redhat.com>
> > > wrote:
> > > >
> > > > On Feb  3 22:59, Alexander Fedotov wrote:
> > > > > Please find attached patch that adds new hook
> > > > > "_exceptions_stack_init". Hook is defined as "weak" to give user
> > > > > ability to override by it's own implementation.
> > > > > Also added new macro for .fnstart and .fnend to improve readability.
> > > > >
> > > > > Alex
> > > >
> > > > Any ARM person to review this patch and the patches from
> > > > https://sourceware.org/ml/newlib/2019/msg00028.html?
> > > >
> > > >
> > > > Thanks,
> > > > Corinna
> > > >
> > > > --
> > > > Corinna Vinschen
> > > > Cygwin Maintainer
> > > > Red Hat
> > >
> > >
> > >
> > > --
> > > Best regards,
> > > AF



-- 
Best regards,
AF