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Date: Tue, 15 Nov 2016 20:48:00 -0000
From: Mike Frysinger <vapier@gentoo.org>
To: Joseph Myers <joseph@codesourcery.com>
Cc: libc-alpha@sourceware.org, dalias@libc.org
Subject: Re: Make SH ucontext always match current kernels
Message-ID: <20161115204755.GD21655@vapier.lan>
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	libc-alpha@sourceware.org, dalias@libc.org
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On 07 Nov 2016 23:18, Joseph Myers wrote:
> As discussed in the thread starting at
> <https://sourceware.org/ml/libc-alpha/2015-06/msg00657.html>, there
> are various problems with the sigcontext / mcontext / ucontext
> structures on SH.  The soft-float SH4 case in fact does not build at
> present, with errors processing
> sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.sym with gen-as-const.awk
> ("error: 'mcontext_t {aka struct <anonymous>}' has no member named
> 'fpregs'").
>=20
> Linux 4.8 (commit bbe6c77857c38f4acbdc4fc70399515226d1859a) moved to
> always using the same sigcontext structure on SH, with room for
> floating-point registers whether or not present on the processor.
> This patch makes the glibc header match.
>=20
> Tested (compilation only) for sh4-linux-gnu hard float, and in
> conjunction with other fixes for soft float.

lgtm
-mike

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