From: Helge Deller <deller@gmx.de>
Date: Sun, 10 Jan 2016 08:30:42 +0000 (+0100)
Subject: parisc: Fix __ARCH_SI_PREAMBLE_SIZE
X-Git-Tag: v3.2.77~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a83e0d0a1dbc97e1b271538e479e3bd8fc4838e;p=pandora-kernel.git

parisc: Fix __ARCH_SI_PREAMBLE_SIZE

commit e60fc5aa608eb38b47ba4ee058f306f739eb70a0 upstream.

On a 64bit kernel build the compiler aligns the _sifields union in the
struct siginfo_t on a 64bit address. The __ARCH_SI_PREAMBLE_SIZE define
compensates for this alignment and thus fixes the wait testcase of the
strace package.

The symptoms of a wrong __ARCH_SI_PREAMBLE_SIZE value is that
_sigchld.si_stime variable is missed to be copied and thus after a
copy_siginfo() will have uninitialized values.

Signed-off-by: Helge Deller <deller@gmx.de>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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