From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <52BEE319.7000606@openwide.fr> Date: Sat, 28 Dec 2013 15:41:29 +0100 From: Romain Naour MIME-Version: 1.0 References: <1388233874-6599-1-git-send-email-romain.naour@openwide.fr> <52BEC7B4.8080505@xenomai.org> <52BECF88.6080408@openwide.fr> <52BED3F2.1020402@xenomai.org> In-Reply-To: <52BED3F2.1020402@xenomai.org> Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: 8bit Subject: Re: [Xenomai] [PATCH 0/1] armv5tej support in xenomai List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gilles Chanteperdrix Cc: xenomai@xenomai.org Le 28/12/2013 14:36, Gilles Chanteperdrix a écrit : > On 12/28/2013 02:18 PM, Romain Naour wrote: >> Le 28/12/2013 13:44, Gilles Chanteperdrix a écrit : >>> On 12/28/2013 01:31 PM, Romain Naour wrote: >>>> Hi Gilles, >>>> >>>> Can confirm that the armv5tej architecture is supported by xenomai ? >>>> >>>> There are currently some compilation errors like this one on buildroot's autobuilder: >>>> http://autobuild.buildroot.net/results/e3b/e3b534dafb6dd7d788b0c3629ccc0b25702790f0/build-end.log >>>> >>>> This error is fixed by the following path. >>> This fixes xenomai build issue, yes, but I have no idea how xenomai >>> behaves with programs using the jazelle instruction set. >> I don't know either. >>> Does gcc generate jazelle instructions now? >>> >> I don't think so. >> I don't know much about jazelle instructions set. > My point being, unless I am mistaken, the J in arm5TEJ means "jazelle". > So, what is the point of generating a compiler for this architecture if > you do not use the corresponding instructions? > > Jazelle instructions seems to be only used by a JVM, not by gcc. So, in the current case, the cpu jazelle support is useless without a JVM. Best regards, Romain Naour