[PATCH 14/17 v5] Avoid stack-protecting signal-handling functions sibcalled from assembly.

[Florian Weimer]

On 05/15/2016 05:49 PM, Andreas Schwab wrote:
> Nix <nix@esperi.org.uk> writes:
>
>> On 15 May 2016, Andreas Schwab verbalised:
>>
>>> Nix <nix@esperi.org.uk> writes:
>>>
>>>> I'll have a hunt for whatever it is that's causing sigjmp.c to not be
>>>> rebuilt after this test cycle, because that's the underlying bug here,
>>>> really.
>>>
>>> Just changing CFLAGS-foo doesn't trigger a rebuild of dependent objects.
>>
>> Well, no, but sigjmp.c should be rebuilt if it's incorporated in ld.so
>> anyway: we should be getting an rtld-sigjmp.o, and we're not.
>
> Most architectures implement setjmp in assembler anyway.

But a lot (all?) of them use a C tail for some of the work, and the 
patch is about how that is compiled.

Florian