From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 02 Nov 2022 09:05:30 +0100 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oq8kc-00C1Mj-QA for lore@lore.pengutronix.de; Wed, 02 Nov 2022 09:05:30 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oq8kb-0000hF-Es for lore@pengutronix.de; Wed, 02 Nov 2022 09:05:29 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:From:In-Reply-To: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Qgt4Qyr7NpQ5a+JYdk8qRBGGrddrMIkjnaWhQL1kHOM=; b=pVhYVYBDYyDEIz7+eTvfNqW909 32vLlagoH1o9LfdlVlrxjAga/ZZYLRiSqqOEWzIB/gI2B2MJ4rjkskGoTZnGLOsT6qKswqmV3QT5x m9BsbXmAgwC7KD6PQh/SFTBgsE+Xh7cYtSzqr/cJf0X/GXvvEM+Tozq62KbFQhBYW2LiuoZNiFXlJ 4/tAUsgtBfgJcvJH1tti2cFU4nvV/z9lOQTi/I5xMgWjIPimlVG4zdif/7e12eLdJr/0YpnPWABC/ rDqJ6sMmy891iSkYkClB5UgD9w28qLdaaTUAOGUt3eJKeVR75nPvhy65JKAYT9abO5H76drozMX6e Ob9dj5GA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oq8jM-008jvj-3k; Wed, 02 Nov 2022 08:04:12 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oq8jH-008juT-38 for barebox@lists.infradead.org; Wed, 02 Nov 2022 08:04:08 +0000 Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oq8jF-0000Ye-72; Wed, 02 Nov 2022 09:04:05 +0100 Received: from sha by ptx.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1oq8jE-0007Ic-W0; Wed, 02 Nov 2022 09:04:04 +0100 Date: Wed, 2 Nov 2022 09:04:04 +0100 To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: <20221102080404.GD3143@pengutronix.de> References: <20221101064310.3227410-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221101064310.3227410-1-a.fatoum@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain User-Agent: Mutt/1.10.1 (2018-07-13) From: Sascha Hauer X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221102_010407_154482_7D80992F X-CRM114-Status: GOOD ( 22.12 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH] lib: string: implement mempcpy X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) On Tue, Nov 01, 2022 at 07:43:10AM +0100, Ahmad Fatoum wrote: > mempcpy(3) is a GNU libc extension that like stpcpy returns not the > start of the destination buffer, but the first byte after its end. > > Provide it as it is useful when concatenating buffers or known-size > strings. > > Signed-off-by: Ahmad Fatoum > --- > v1 -> v2: > - split off function from series using it. Other series needs > commits reordered. Applied, thanks Sascha > --- > include/string.h | 1 + > lib/string.c | 5 +++++ > 2 files changed, 6 insertions(+) > > diff --git a/include/string.h b/include/string.h > index 2cc727fd1d7a..596440ca8164 100644 > --- a/include/string.h > +++ b/include/string.h > @@ -4,6 +4,7 @@ > > #include > > +void *mempcpy(void *dest, const void *src, size_t count); > int strtobool(const char *str, int *val); > char *strsep_unescaped(char **, const char *); > char *stpcpy(char *dest, const char *src); > diff --git a/lib/string.c b/lib/string.c > index fd4d7da10a7c..edd36da4d4f2 100644 > --- a/lib/string.c > +++ b/lib/string.c > @@ -603,6 +603,11 @@ void *__memcpy(void * dest, const void *src, size_t count) > __alias(__default_memcpy); > #endif > > +void *mempcpy(void *dest, const void *src, size_t count) > +{ > + return memcpy(dest, src, count) + count; > +} > +EXPORT_SYMBOL(mempcpy); > > #ifndef __HAVE_ARCH_MEMMOVE > /** > -- > 2.30.2 > > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |