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Re: libsanitizer merge from upstream r221802

From: David Abdurachmanov <david dot abdurachmanov at gmail dot com>
To: Dmitry Vyukov <dvyukov at google dot com>, Jakub Jelinek <jakub at redhat dot com>, Konstantin Serebryany <konstantin dot s dot serebryany at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Dodji Seketeli <dodji at redhat dot com>, Marek Polacek <polacek at redhat dot com>, "H.J. Lu" <hjl dot tools at gmail dot com>, Yuri Gribov <tetra2005 at gmail dot com>, Alexey Samsonov <samsonov at google dot com>
Date: Mon, 29 Dec 2014 19:36:42 +0100
Subject: Re: libsanitizer merge from upstream r221802
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References: <CAGQ9bdybHEXUYZ3xCaadBAi5U7mTmGkHK8yweF6Qts5q=yc42Q at mail dot gmail dot com> <20141113091614 dot GB5026 at tucnak dot redhat dot com> <CACT4Y+YiHMyvg_N+0K+X+Y7R3NzzbUvae_J1MqQG0nTR-qNU=g at mail dot gmail dot com>

Hi,

I believe this is breaking bootstrap on aarch64-linux-gnu with kernels <=3.15,
3.16 and above are fine.

__kernel_old_{gid,uid}_t were changed in 3.16 from unsigned int to unsigned
short. <=3.15 kernel will trigger static asserts in libsanitizer while
compiling GCC.

I created PR: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64435 (includes all
the details).

Attaching a patch with resolved issues on F19 + 3.12 kernel (also bootstrapped
in QEMU with F21 rootfs + 3.17 kernel) on aarch64-linux-gnu.

david

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Follow-Ups:
- Re: libsanitizer merge from upstream r221802
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