linux-kernel - Re: [PATCH] perf, liblk: Fix _FORTIFY

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Date:	Sun, 3 Mar 2013 17:36:43 -0300
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...e.de>
Subject: Re: [PATCH] perf, liblk: Fix _FORTIFY_SOURCE builds

Em Sun, Mar 03, 2013 at 08:25:33PM +0100, Borislav Petkov escreveu:
> Jiri Olsa triggers the following build error:

>     SUBDIR ../lib/lk/
>     CC debugfs.o
> In file included from /usr/include/errno.h:29:0,
>                  from debugfs.c:1:
> /usr/include/features.h:314:4: error: #warning _FORTIFY_SOURCE requires compiling with optimization (-O) [-Werror=cpp]

> This is because enabling buffer overflow checks through _FORTIFY_SOURCE
> require compiler optimizations to be enabled too. However, those are
> not. Enable them by simply copying the perf optimization level. It can
> be expanded later if we want to support debug builds, etc.

Thanks, applied.

- Arnaldo
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