From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baruch Siach Date: Tue, 9 Aug 2016 21:30:29 +0300 Subject: [Buildroot] [PATCH 1/2] package/rt-tests: remove sched_setattr/sched_getattr API for SuperH arch In-Reply-To: <8216095c-f7c2-a862-c685-fe11e2bd2f32@gmail.com> References: <1470607398-8644-1-git-send-email-romain.naour@gmail.com> <20160808044245.GM3873@tarshish> <8216095c-f7c2-a862-c685-fe11e2bd2f32@gmail.com> Message-ID: <20160809183029.GG845@tarshish> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hi Romain, On Tue, Aug 09, 2016 at 12:34:24PM +0200, Romain Naour wrote: > Le 08/08/2016 ? 06:42, Baruch Siach a ?crit : > > On Mon, Aug 08, 2016 at 12:03:17AM +0200, Romain Naour wrote: > >> This commit remove rt-sched.o from librttest and pi_stress test program > >> only for SuperH arch which doesn't have __NR_sched_setattr and > >> __NR_sched_getattr syscalls defined. > >> > >> Patch [1] adding these syscalls has not been merged in upstream kernel > >> (4.7). > > > > But these syscalls were added for 4.8-rc1 (commit 74bdaa611fa69). This > > solution prevents sched_{set,get}attr use even for future v4.8+ kernels. > > Thanks for this info, I haven't checked the upcoming 4.8 kernel. > > However, it means that pi_stress should depends on BR2_sh and > BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8. But this symbol doesn't exist yet in Buildroot. > > I think this patch can be commited as is (kernel 4.8 will be released after > 2016.08) and the dependency on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8 can be added > in a follow up patch. Alternatively, you may patch src/include/rt-sched.h to add sh syscall numbers, in addition to the existing i386, x86_64, and ARM ones. That would fix the current build issue, and would also be future proof. Such a patch might even be acceptable upstream. baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -