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From: Ingo Molnar <mingo@kernel.org>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: linux-tip-commits@vger.kernel.org, linux-kernel@vger.kernel.org,
	eranian@google.com, paulus@samba.org, hpa@zytor.com,
	peterz@infradead.org, efault@gmx.de, fweisbec@gmail.com,
	adrian.hunter@intel.com, dsahern@gmail.com, tglx@linutronix.de
Subject: Re: perf/compat: Sharpen the libaudit dependencies test
Date: Sat, 14 Sep 2013 07:49:06 +0200	[thread overview]
Message-ID: <20130914054906.GA364@gmail.com> (raw)
In-Reply-To: <20130913192051.GA26865@ghostprotocols.net>


* Arnaldo Carvalho de Melo <acme@ghostprotocols.net> wrote:

> Em Thu, Sep 12, 2013 at 03:27:06PM +0200, Ingo Molnar escreveu:
> > There are older libaudit versions that don't have an audit_errno_to_name() 
> > method, resulting in a builtin-trace.c build error:
> > 
> >   builtin-trace.c: In function ‘trace__sys_exit’:
> >   builtin-trace.c:794: warning: implicit declaration of function ‘audit_errno_to_name’
> > 
> > Expand the libaudit test to detect this.
> 
> Lets sharpen it a bit more ;-)
>  
> CHK libaudit
> <stdin>: In function ‘main’:
> <stdin>:5:9: error: ‘error’ undeclared (first use in this function)
> <stdin>:5:9: note: each undeclared identifier is reported only once for each function it appears in
> <stdin>:5:15: error: expected ‘)’ before ‘message’
> make: Entering directory `/home/git/linux/tools/perf'
> config/Makefile:238: No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev
> 
> We need this folded in to buind it, so that the test works:
> 
> diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak
> index 5608add..7f550c1 100644
> --- a/tools/perf/config/feature-tests.mak
> +++ b/tools/perf/config/feature-tests.mak
> @@ -210,7 +210,7 @@ define SOURCE_LIBAUDIT
>  
>  int main(void)
>  {
> -	printf("error message: %s\n", audit_errno_to_name(0));
> +	printf(\"error message: %s\n\", audit_errno_to_name(0));

indeed, I only tested that it turned the feature off :-/

Thanks,

	Ingo

  reply	other threads:[~2013-09-14  5:49 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-29 10:09 [tip:perf/core] perf trace: Simplify sys_exit return printing tip-bot for Arnaldo Carvalho de Melo
2013-09-12 13:27 ` perf/compat: Sharpen the libaudit dependencies test Ingo Molnar
2013-09-13 19:20   ` Arnaldo Carvalho de Melo
2013-09-14  5:49     ` Ingo Molnar [this message]
2013-09-20  9:55   ` [tip:perf/urgent] perf tools: " tip-bot for Ingo Molnar
2013-09-12 13:29 ` perf/compat: Fill in new definitions for madvise()/mmap() flags Ingo Molnar
2013-09-20  9:55   ` [tip:perf/urgent] perf tools: Fill in new definitions for madvise ()/mmap() flags tip-bot for Ingo Molnar

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