PING^2: [PATCH 0/2] nptl: Update struct pthread_unwind_buf

[H.J. Lu]

On Thu, Feb 15, 2018 at 12:02 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Fri, Feb 9, 2018 at 7:24 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
>> On Fri, Feb 9, 2018 at 6:33 AM, Florian Weimer <fweimer@redhat.com> wrote:
>>> On 02/09/2018 03:13 PM, H.J. Lu wrote:
>>>>
>>>> I built glibc master with gcc-8.0.1 -mcet -fcf-protection.  Some object
>>>> files do get CET marker as expected.  But static executable isn't:
>>>
>>>
>>> I said static libraries.  If I compile this code (based on the example from
>>> the manual page) on Fedora rawhide:
>>>
>>
>> Glibc never provides binary compatibility with static libraries.  My suggestions
>> are
>>
>> 1. Recompile static libraries after CET is enabled in glibc.  Or
>> 2. Don't compile static libraries with CET.
>>
>> BTW, we don't have space to save shadow stack register with existing
>> cancel buf.
>>
>
> PING:
>
> https://sourceware.org/ml/libc-alpha/2018-02/msg00290.html
> https://sourceware.org/ml/libc-alpha/2018-02/msg00291.html
>

PING.


-- 
H.J.