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Re: [PATCH 2/2] aarch64: implement walking over the stack protector
- From: Kyle McMartin <kmcmarti at redhat dot com>
- To: Andrew Pinski <pinskia at gmail dot com>
- Cc: "gdb-patches at sourceware dot org" <gdb-patches at sourceware dot org>
- Date: Thu, 5 Jun 2014 16:53:38 -0400
- Subject: Re: [PATCH 2/2] aarch64: implement walking over the stack protector
- Authentication-results: sourceware.org; auth=none
- References: <20140603050011 dot GA15355 at redacted dot bos dot redhat dot com> <20140603050314 dot GC15355 at redacted dot bos dot redhat dot com> <CA+=Sn1=Gsi61Wv=fzsU-QwJw=KLeN-iMeikRcKnFpTeCssv2zA at mail dot gmail dot com> <20140603145108 dot GF15355 at redacted dot bos dot redhat dot com> <20140605200621 dot GN15355 at redacted dot bos dot redhat dot com> <CA+=Sn1=6wCUvMzUC9MAiGX4+-DL5hEQAm7iRi_=xQ-Rpfo+Dag at mail dot gmail dot com>
On Thu, Jun 05, 2014 at 01:35:54PM -0700, Andrew Pinski wrote:
> > Finally got a toolchain built that supports ilp32... looks like the
> > existing code should work for it. The only difference (not sure if it's
> > because of gcc HEAD or what) is using w1 instead of x0 repeated for the
> > ldr/str, which looks to be satisfied by the rt/rt2 tests and size=10
> > included in the decode_masked_match. I'll try to build a static ilp32
> > binary to test it meanwhile, but I've had some other issues with gcc
> > HEAD.
>
> Glibc support is not there yet though. I will take over the issue
> with ILP32 then. When this goes in, can you file a bug and assign it
> to me (pinskia@gcc.gnu.org I think is my email for sourceware
> bugzilla)?
>
Will do. Just ran this sequence through the code 'by hand' and it seems
to work on ILP32, fwiw.
--Kyle