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Re: [PATCH][AARCH64][BZ #16850]Increase MINSIGSTKSZ & SIGSTKSZ
- From: Will Newton <will dot newton at linaro dot org>
- To: Renlin Li <renlin dot li at arm dot com>
- Cc: GNU C Library <libc-alpha at sourceware dot org>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>
- Date: Fri, 14 Nov 2014 10:20:05 +0000
- Subject: Re: [PATCH][AARCH64][BZ #16850]Increase MINSIGSTKSZ & SIGSTKSZ
- Authentication-results: sourceware.org; auth=none
- References: <5465D638 dot 2070403 at arm dot com>
On 14 November 2014 10:15, Renlin Li <renlin.li@arm.com> wrote:
> Hi all,
>
> This patch duplicates sysdeps/unix/sysv/linux/bits/sigstack.h into
> sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h and modifies only SIGSTCKSZ
> and MINSIGSTKSZ.
>
> The ucontext_t is 4560 bytes, siginfo_t is 128 bytes. The required sigframe
> is far larger than the current default MINSIGSTKSZ (which is 2048). Thus, I
> increase MINSIGSTKSZ to 8192, and adjust SIGSTCKSZ accordingly.
>
> Glibc has been build and test on the model, no new issues.
>
> Okay to commit?
>
> ChangeLog:
>
> 2014-11-14 Renlin Li <Renlin.Li@arm.com>
> [BZ #16850]
> * sysdeps/unix/sysv/linux/aarch64/bits/sigstack.h: New.
I believe this should be synchronized with the value of this constant
in the kernel.
--
Will Newton
Toolchain Working Group, Linaro