Re: [Patch, ARM, ping1] Fix PR target/56846

[Jonathan Wakely <jwakely at redhat dot com>]

On 26/11/14 17:23 -0000, Thomas Preud'homme wrote:
> Ping?

I'm OK with backporting it if a release manager approves it.


> > -----Original Message-----
> > From: gcc-patches-owner@gcc.gnu.org [mailto:gcc-patches-
> > owner@gcc.gnu.org] On Behalf Of Thomas Preud'homme
> > Sent: Wednesday, November 19, 2014 6:00 PM
> > To: Tony Wang; gcc-patches@gcc.gnu.org; dan@debian.org; aph-
> > gcc@littlepinkcloud.com; Richard Earnshaw; Ramana Radhakrishnan;
> > libstdc++@gcc.gnu.org
> > Subject: RE: [Patch ARM] Fix PR target/56846
> >
> > > From: gcc-patches-owner@gcc.gnu.org [mailto:gcc-patches-
> > > owner@gcc.gnu.org] On Behalf Of Tony Wang
> > >
> >
> > >
> > > Hi all,
> > >
> > > The bug is reported at
> > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56846, and itâs about the
> > > problem that
> > > when exception handler is involved in the function, then
> > > _Unwind_Backtrace function will run into deadloop on
> > > arm target.
> >
> > The patch (in r215101) can be backported without any change on 4.8 and
> > 4.9 branches. I checked in QEMU with and without the patch on both
> > branches and it indeed solves the problem.
> >
> > Testsuite run without regression when compiled with arm-none-eabi
> > cross compiler and executed on QEMU emulating Cortex-M3.
> >
> > I also bootstrapped gcc on x86_64-linux-gnu and run the testsuite
> > without
> > regressions.
> >
> > Is it ok for backport?
> >
> > Best regards,
> >
> > Thomas