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Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP

From: Steven Bosscher <stevenb dot gcc at gmail dot com>
To: John David Anglin <dave dot anglin at bell dot net>
Cc: Richard Henderson <rth at redhat dot com>, Eric Botcazou <ebotcazou at libertysurf dot fr>, GCC Patches <gcc-patches at gcc dot gnu dot org>, DJ Delorie <dj at redhat dot com>
Date: Tue, 26 Jun 2012 19:21:25 +0200
Subject: Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
References: <CABu31nP=10OdiCX=dOKb1DWu=ksBYQ2TPb-eSCVgUsbqWSu=Tg@mail.gmail.com> <201206250913.51502.ebotcazou@libertysurf.fr> <CABu31nOqxH+ZoE5Lv60dHsfqEOaMZH4r8XKnbBUUBj-5RZ7NjQ@mail.gmail.com> <201206251046.43334.ebotcazou@libertysurf.fr> <CABu31nNDA1T2F_78o6EYHBuvYmjMyhYQj2Q9dVOp6JJtE=aXrg@mail.gmail.com> <4FE9D77B.3070607@redhat.com> <4FE9ECDA.6090505@bell.net>

On Tue, Jun 26, 2012 at 7:09 PM, John David Anglin <dave.anglin@bell.net> wrote:
> On 6/26/2012 11:38 AM, Richard Henderson wrote:
>>
>> On 06/26/2012 01:55 AM, Steven Bosscher wrote:
>>>
>>> If __builtin_setjmp actually does work for ia64, why should we keep
>>> DONT_USE_BUILTIN_SETJMP? Could it break user code somehow?
>>
>> It's an ABI change for anyone using --enable-sjlj-exceptions.
>> But I don't know who that would be...
>
> SJLJ exceptions are forced for hpux10. ?It might have been a bug to not
> define
> DONT_USE_BUILTIN_SETJMP but nobody complained as far as I know.

Did hpux10 even ever run on ia64?

Ciao!
Steven

Follow-Ups:
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: John David Anglin

References:
- [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: Steven Bosscher
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: Eric Botcazou
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: Steven Bosscher
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: Eric Botcazou
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: Steven Bosscher
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: Richard Henderson
- Re: [patch] Only define JMP_BUF_SIZE in backends that also define DONT_USE_BUILTIN_SETJMP
  - From: John David Anglin

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