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Subject: Re: [PATCH 1/2] Linux/x86: Update cancel_jmp_buf to match
 __jmp_buf_tag [BZ #22563]
To: "H.J. Lu" <hjl.tools@gmail.com>, Andreas Schwab <schwab@suse.de>
Cc: GNU C Library <libc-alpha@sourceware.org>
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From: Florian Weimer <fweimer@redhat.com>
Message-ID: <b18ba18a-625c-bbbe-4cf6-8fc438e410e9@redhat.com>
Date: Tue, 09 Jan 2018 10:47:00 -0000
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On 12/18/2017 03:48 PM, H.J. Lu wrote:
> On Mon, Dec 18, 2017 at 6:44 AM, Andreas Schwab <schwab@suse.de> wrote:
>> On Dez 18 2017, "H.J. Lu" <hjl.tools@gmail.com> wrote:
>>
>>> This patch adds bits/types/__cancel_jmp_buf_tag.h to define struct
>>> __cancel_jmp_buf_tag so that Linux/x86 can add saved_mask to
>>> cancel_jmp_buf.
>>
>> Isn't that an ABI change?
>>
> 
> Yes, this change is exposed to application via <phread.h>.  The backward
> binary compatibility is provided by
> 
> https://sourceware.org/ml/libc-alpha/2017-12/msg00208.html

This doesn't seem to work:

<https://sourceware.org/ml/libc-alpha/2018-01/msg00178.html>

I have no idea what is going on, but if we can't find the root cause, I 
think we should revert all the setjmp changes.

Thanks,
Florian