From: Vineet Gupta <vineet.gupta1@synopsys.com>
To: Florian Weimer <fweimer@redhat.com>,
Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: Joseph Myers <joseph@codesourcery.com>,
"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>
Subject: Re: ARC vs. generic sigaction (was Re: [PATCH 08/21] ARC: Linux Syscall Interface)
Date: Thu, 20 Dec 2018 18:48:06 +0000 [thread overview]
Message-ID: <C2D7FE5348E1B147BCA15975FBA2307501464238AD@US01WEMBX2.internal.synopsys.com> (raw)
In-Reply-To: 87va3oqsks.fsf@oldenburg2.str.redhat.com
On 12/20/18 4:40 AM, Florian Weimer wrote:
> * Adhemerval Zanella:
>
>> The only advantage of using a larger sigset_t from glibc standpoint is if
>> kernel ever change it maximum number of supported signals it would not be
>> a ABI change (it would be if glibc provided sigset_t need to be extended).
> It's not just the kernel. We might want to restore additional state in
> sigsetjmp, and historically, the excess signal space in sigset_t has
> provided a way to do that even if there is no other space left in the
> jump buffer.
And that additional state is architectural state (more FPU regs etc etc) or
something libc generic. On both counts, that doesn't sound like a clean interface
design !
next prev parent reply other threads:[~2018-12-20 18:48 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-18 21:04 [PATCH 00/21] glibc port to ARC processors Vineet Gupta
2018-12-18 21:04 ` [PATCH 01/21] longlong.h: sync from gcc to fix ARC inline asm constraints Vineet Gupta
2018-12-18 22:56 ` Joseph Myers
2018-12-18 23:11 ` Vineet Gupta
2018-12-21 18:46 ` Joseph Myers
2018-12-21 19:07 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 02/21] ARC: add definitions to elf/elf.h Vineet Gupta
2018-12-18 21:04 ` [PATCH 03/21] ARC: ABI Implementation Vineet Gupta
2018-12-18 23:09 ` Joseph Myers
2018-12-19 2:00 ` Vineet Gupta
2018-12-19 17:40 ` Joseph Myers
2018-12-19 20:20 ` Vineet Gupta
2018-12-19 20:37 ` Joseph Myers
2019-01-28 23:03 ` ARC binutils init/fini (was Re: [PATCH 03/21] ARC: ABI Implementation) Vineet Gupta
2019-01-28 23:13 ` Joseph Myers
2019-01-28 23:42 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 04/21] ARC: startup and dynamic linking code Vineet Gupta
2018-12-18 23:24 ` Joseph Myers
2018-12-19 0:52 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 05/21] ARC: Thread Local Storage support Vineet Gupta
2018-12-18 21:04 ` [PATCH 06/21] ARC: Atomics and Locking primitives Vineet Gupta
2018-12-18 23:15 ` Joseph Myers
2019-01-15 0:40 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 07/21] ARC: math soft float support Vineet Gupta
2018-12-18 23:23 ` Joseph Myers
2018-12-19 0:01 ` Joseph Myers
2018-12-20 21:35 ` Vineet Gupta
2018-12-21 1:08 ` Vineet Gupta
2018-12-21 1:19 ` Joseph Myers
2018-12-18 21:04 ` [PATCH 08/21] ARC: Linux Syscall Interface Vineet Gupta
2018-12-18 23:30 ` Joseph Myers
2018-12-19 2:39 ` Vineet Gupta
2018-12-19 17:58 ` ARC vs. generic sigaction (was Re: [PATCH 08/21] ARC: Linux Syscall Interface) Vineet Gupta
2018-12-19 18:07 ` Joseph Myers
2018-12-19 22:00 ` Adhemerval Zanella
2018-12-19 22:23 ` Vineet Gupta
2018-12-20 11:19 ` Adhemerval Zanella
2018-12-20 12:06 ` Arnd Bergmann
2018-12-20 19:25 ` Vineet Gupta
2018-12-20 12:40 ` Florian Weimer
2018-12-20 18:48 ` Vineet Gupta [this message]
2019-01-03 13:10 ` Florian Weimer
2018-12-20 19:23 ` Vineet Gupta
2018-12-20 20:06 ` Adhemerval Zanella
2018-12-20 20:46 ` Vineet Gupta
2018-12-21 12:05 ` Adhemerval Zanella
2019-01-09 21:49 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 09/21] ARC: Linux ABI Vineet Gupta
2018-12-18 23:38 ` Joseph Myers
2018-12-19 19:57 ` Vineet Gupta
2018-12-19 20:36 ` Joseph Myers
2018-12-21 23:06 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 10/21] ARC: Linux Startup and Dynamic Loading Vineet Gupta
2018-12-18 23:49 ` Joseph Myers
2018-12-19 20:26 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 11/21] ARC: ABI lists Vineet Gupta
2018-12-18 22:31 ` Andreas Schwab
2018-12-18 22:32 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 12/21] ARC: Update syscall-names.list for ARC specific syscalls Vineet Gupta
2018-12-18 21:26 ` Florian Weimer
2018-12-18 21:29 ` Vineet Gupta
2018-12-19 8:16 ` Florian Weimer
2018-12-18 21:04 ` [PATCH 13/21] ARC: Build Infrastructure Vineet Gupta
2018-12-18 23:44 ` Joseph Myers
2018-12-19 21:58 ` Vineet Gupta
2018-12-19 22:17 ` Joseph Myers
2018-12-20 23:21 ` Vineet Gupta
2018-12-20 23:24 ` Joseph Myers
2019-01-29 23:36 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 14/21] ARC: Enable __start as entry point vs. canonical _start Vineet Gupta
2018-12-18 21:28 ` Florian Weimer
2018-12-18 21:31 ` Vineet Gupta
2018-12-18 22:59 ` Joseph Myers
2018-12-18 23:08 ` Vineet Gupta
2018-12-19 20:36 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 15/21] ARC: testsuite fix: elf/check-initfini Vineet Gupta
2018-12-18 21:04 ` [PATCH 16/21] ARC: testsuite fix: sysvipc/* Vineet Gupta
2018-12-19 22:10 ` Adhemerval Zanella
2018-12-18 21:04 ` [PATCH 17/21] ARC: testsuite fix: stdlib/tst-makecontext Vineet Gupta
2018-12-18 22:36 ` Andreas Schwab
2019-01-21 22:32 ` Vineet Gupta
2018-12-18 21:04 ` [PATCH 18/21] ARC: testsuite fix: GD TLS issue Vineet Gupta
2018-12-18 21:04 ` [PATCH 19/21] ARC: fix several unwining and cancelation tests Vineet Gupta
2018-12-18 21:04 ` [PATCH 20/21] build-many-glibcs.py: Enable ARC builds Vineet Gupta
2018-12-18 21:04 ` [PATCH 21/21] NEWS: mention ARC port Vineet Gupta
2018-12-18 23:45 ` Joseph Myers
2018-12-19 18:30 ` Vineet Gupta
2018-12-18 22:52 ` [PATCH 00/21] glibc port to ARC processors Joseph Myers
2018-12-18 23:07 ` Vineet Gupta
2018-12-18 23:52 ` Joseph Myers
2018-12-21 1:55 ` Vineet Gupta
2018-12-21 14:32 ` Joseph Myers
2018-12-21 17:36 ` Vineet Gupta
2018-12-18 23:11 ` Joseph Myers
2018-12-19 23:45 ` Vineet Gupta
2018-12-20 0:14 ` Joseph Myers
2018-12-20 0:51 ` Vineet Gupta
2018-12-20 21:22 ` test related questions (was Re: [PATCH 00/21] glibc port to ARC processors) Vineet Gupta
2018-12-20 21:59 ` Joseph Myers
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