> -----Original Message----- > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Masaru Oki > Sent: Wednesday, November 12, 2014 1:48 PM > To: Yaron Illouz > Cc: <dev at dpdk.org> > Subject: Re: [dpdk-dev] compile dpdk with no avx > > Hi, > > Some libraries need AVX instruction, but if you don't use, it can disable. > e.g. CONFIG_RTE_LIBRTE_IXGBE_PMD=n in config file. > > > 2014-11-12 21:45 GMT+09:00 Yaron Illouz <yaroni at radcom.com>: > > Hi > > > > > > > > I use dpdk in my product. I can't change my dpdk version. > > > > I compile it on a server that have avx. > > > > Most of the time, it run on machine that have avx, but not always. > > > > > > > > When running the product on a machine with no avx, it crash on illegal > > instruction. > > > > The current solution is to build it on a computer with no avx. > > > > > > > > Is there a compilation flag to disable avx? So it doesn't matter on > > which computer I compiled it.
Basically, you are looking at cross-compiling DPDK. One thing you could do is go to one of the config files (i.e. defconfig_x86-64-native-linuxapp-gcc) and change CONFIG_RTE_MACHINE, from "native" to one of the micro-architectures that do not have avx, such as "wsm" (Westmere). Regards, Pablo > > > > > > > > Compile flag > > > > defconfig_x86_64-default-linuxapp-gcc > > > > > > > > Dpdk version > > > > PACKAGE_VERSION_MAJOR_NUMBER=1 > > > > PACKAGE_VERSION_MINOR_NUMBER=6 > > > > PACKAGE_VERSION_PATCH_NUMBER=0 > > > > PACKAGE_VERSION_BUILD_NUMBER=18 > > > > > > > > Gcc version > > > > gcc (GCC) 4.4.6 20120305 (Red Hat 4.4.6-4) > > > > > > > > OS > > > > CentOS release 6.3 (Final) > > > > > > > > > > > > > > > > > >
