From: Joseph Myers <joseph@codesourcery.com>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: "Maciej W. Rozycki" <macro@imgtec.com>,
Aurelien Jarno <aurelien@aurel32.net>,
<libc-alpha@sourceware.org>
Subject: Re: [PATCH] mips/o32: fix internal_syscall5/6/7
Date: Thu, 17 Aug 2017 17:32:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.20.1708171729020.25361@digraph.polyomino.org.uk> (raw)
In-Reply-To: <bfef7321-0a07-13bf-a153-431c244bab0a@linaro.org>
On Thu, 17 Aug 2017, Adhemerval Zanella wrote:
> My point is I think we should aim for compiler optimization safeness
> (to avoid code breakage over compiler defined default flags) and taking
> as base current approach to *avoid* VLA on GLIBC I do not think it is
> good approach to use it as a bridge to force GCC to generate the expected
> code.
I think the point that -Werror=alloca -Werror=vla would be desirable for
building glibc (if you don't have any variable-size stack allocations, you
don't need to worry about problems with unbounded stack allocations, which
are always bad, even given reliable stack checking, because of the
inability to report errors from them) is a good one about why to avoid
using the VLA approach.
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2017-08-17 17:32 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-15 11:53 Aurelien Jarno
2017-08-15 12:03 ` Andreas Schwab
2017-08-15 13:06 ` Adhemerval Zanella
2017-08-15 16:18 ` Aurelien Jarno
2017-08-15 16:26 ` Joseph Myers
2017-08-15 19:34 ` Aurelien Jarno
2017-08-15 19:54 ` Joseph Myers
2017-08-15 20:09 ` Aurelien Jarno
2017-08-15 20:21 ` Joseph Myers
2017-08-15 20:41 ` Aurelien Jarno
2017-08-16 13:26 ` Maciej W. Rozycki
2017-08-16 13:44 ` Joseph Myers
2017-08-16 14:13 ` Adhemerval Zanella
2017-08-16 14:47 ` Maciej W. Rozycki
2017-08-16 14:54 ` Adhemerval Zanella
2017-08-16 16:12 ` Aurelien Jarno
2017-08-16 21:08 ` Aurelien Jarno
2017-08-16 22:11 ` Maciej W. Rozycki
2017-08-16 15:18 ` Aurelien Jarno
2017-08-16 21:15 ` Aurelien Jarno
2017-08-17 13:33 ` Adhemerval Zanella
2017-08-16 14:32 ` Maciej W. Rozycki
2017-08-16 14:47 ` Joseph Myers
2017-08-17 16:17 ` Maciej W. Rozycki
2017-08-17 17:25 ` Adhemerval Zanella
2017-08-17 17:32 ` Joseph Myers [this message]
2017-08-17 20:34 ` Maciej W. Rozycki
2017-08-17 21:09 ` Adhemerval Zanella
2017-08-17 21:20 ` Aurelien Jarno
2017-08-17 22:05 ` Adhemerval Zanella
2017-08-17 22:34 ` Maciej W. Rozycki
2017-08-18 7:16 ` Aurelien Jarno
2017-08-18 9:32 ` Maciej W. Rozycki
2017-08-18 17:45 ` Aurelien Jarno
2017-08-18 22:27 ` Maciej W. Rozycki
2017-08-19 12:45 ` Aurelien Jarno
2017-08-21 10:49 ` Maciej W. Rozycki
2017-08-21 14:30 ` Adhemerval Zanella
2017-08-24 13:27 ` [PATCH v5] [BZ #21956] MIPS/o32: Fix internal_syscall5/6/7 Maciej W. Rozycki
2017-08-24 20:08 ` Adhemerval Zanella
2017-08-29 18:00 ` Maciej W. Rozycki
2017-08-30 20:33 ` Aurelien Jarno
2017-09-08 11:15 ` MIPS: Standalone/inline assembly issues (was: MIPS/o32: Fix internal_syscall5/6/7) Maciej W. Rozycki
2017-08-26 8:00 ` [PATCH v5] [BZ #21956] MIPS/o32: Fix internal_syscall5/6/7 Aurelien Jarno
2017-08-22 8:25 ` [PATCH] mips/o32: fix internal_syscall5/6/7 Aurelien Jarno
2017-08-22 10:07 ` Maciej W. Rozycki
2017-08-30 15:35 ` Maciej W. Rozycki
2017-08-30 20:33 ` Aurelien Jarno
2017-08-17 21:34 ` Aurelien Jarno
2017-08-17 21:47 ` Maciej W. Rozycki
2017-08-17 18:18 ` Aurelien Jarno
2017-08-15 16:16 ` Aurelien Jarno
2017-08-15 12:17 ` Florian Weimer
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