[PATCH] Arm - exceptions stack pointer initialization hook

[Alexander Fedotov]

Ping

On Wed, 6 Feb 2019 at 16:12, Tamar Christina <Tamar.Christina@arm.com>
wrote:

> Hi Alex,
>
> Yes, I made an ticket to go look at this, It doesn't have any of the THUMB
> changes either so it's way way out of date.
> But I need to wait for Richard to ask if they really should be exact
> copies.
>
> Cheersm
> Tamar
>
> > -----Original Message-----
> > From: Alexander Fedotov <alfedotov@gmail.com>
> > Sent: Wednesday, February 6, 2019 12:49
> > To: Tamar Christina <Tamar.Christina@arm.com>
> > Cc: Newlib <newlib@sourceware.org>; Richard Earnshaw
> > <Richard.Earnshaw@arm.com>; nd <nd@arm.com>
> > Subject: Re: [PATCH] Arm - exceptions stack pointer initialization hook
> >
> > 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/58ce6f19eb457a2c2b700dfe7
> > > > 1
> > > > > 798ef09ba63e10
> > > > > 2.
> > > > >
> > > >
> > https://github.com/alfedotov/newlib/commit/4cabb1f7587304d1c891da59b
> > > > > d1871fcc8668ae5
> > > > > 3.
> > > > >
> > > >
> > https://github.com/alfedotov/newlib/commit/7d38977d4baaecb43fc47f34d
> > > > 7
> > > > > 21a3df23334400
> > > > > 4.
> > > > >
> > > >
> > https://github.com/alfedotov/newlib/commit/e8f094f6729ade24a149d1d68
> > > > 1
> > > > > 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
>
-- 
Best regards,
AF