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

[Thomas Preud'homme]

Ping?

> -----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 it’s 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
> 
> 
> 
>