linux-kernel - Re: [PATCH 11/13] perf tools: replace mempcpy with memcpy

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Message-ID: <87y5krewud.fsf@sejong.aot.lge.com>
Date:	Mon, 03 Sep 2012 10:09:14 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Irina Tirdea <irina.tirdea@...il.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 11/13] perf tools: replace mempcpy with memcpy

On Wed, 29 Aug 2012 01:22:16 +0300, Irina Tirdea wrote:
> mempcpy is not supported by bionic in Android
> and will lead to compilation errors.
>
> Replacing mempcpy with memcpy so it will work in Android.

Unfortunately I've added another instance of the mempcpy in a
libtraceevent code. :-/

Thanks,
Namhyung


>
> Signed-off-by: Irina Tirdea <irina.tirdea@...el.com>
> ---
>  tools/perf/util/target.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
> index 051eaa6..065528b 100644
> --- a/tools/perf/util/target.c
> +++ b/tools/perf/util/target.c
> @@ -117,8 +117,8 @@ int perf_target__strerror(struct perf_target
> *target, int errnum,
>
>  		if (err != buf) {
>  			size_t len = strlen(err);
> -			char *c = mempcpy(buf, err, min(buflen - 1, len));
> -			*c = '\0';
> +			memcpy(buf, err, min(buflen - 1, len));
> +			*(buf + min(buflen - 1, len)) = '\0';
>  		}
>
>  		return 0;
--
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