From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH v2] eal: fix compile error for old glibc caused by pthread_setname_np() Date: Wed, 25 Nov 2015 12:30:47 +0100 Message-ID: <1705961.bZ1H56deuc@xps13> References: <20151124184755.GA26521@sivlogin002.ir.intel.com> <1544258.6QNHahyajJ@xps13> <20151125112440.GA13407@sivlogin002.ir.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org To: Ferruh Yigit Return-path: Received: from mail-wm0-f54.google.com (mail-wm0-f54.google.com [74.125.82.54]) by dpdk.org (Postfix) with ESMTP id 4119E8DAA for ; Wed, 25 Nov 2015 12:32:05 +0100 (CET) Received: by wmww144 with SMTP id w144so176048774wmw.1 for ; Wed, 25 Nov 2015 03:32:05 -0800 (PST) In-Reply-To: <20151125112440.GA13407@sivlogin002.ir.intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 2015-11-25 11:24, Ferruh Yigit: > On Wed, Nov 25, 2015 at 12:18:02PM +0100, Thomas Monjalon wrote: > > 2015-11-25 11:13, Ferruh Yigit: > > > +/** > > > + * Set thread names. > > > + * > > > + * Macro to wrap `pthread_setname_np()` with a glibc version check. > > > + * Only glibc >= 2.12 supports this feature. > > > + * > > > + * This macro only used for Linux, BSD does direct libc call. > > > + * BSD libc version of function is `pthread_set_name_np()`. > > > + */ > > > +#if defined(__DOXYGEN__) > > > +#define rte_thread_setname(...) pthread_setname_np(__VA_ARGS__) > > > +#endif > > > + > > > +#if defined(__GLIBC__) && defined(__GLIBC_PREREQ) > > > +#if __GLIBC_PREREQ(2, 12) > > > +#define rte_thread_setname(...) pthread_setname_np(__VA_ARGS__) > > > +#else > > > +#define rte_thread_setname(...) 0 > > > +#endif > > > +#endif > > > > OK it is a first (and important) fix. > > EAL is an abstraction for Linux and FreeBSD, so ideally another patch would > > make rte_thread_setname working for BSD too. > > I wasn't sure to do that update, since BSD has nothing with glibc versions. > Do you want me amend this patch to update BSD usage to rte_thread_setname? No, for 2.2, you have fixed the glibc issue, that's enough. BSD support can be another path as it is not a real issue currently.