|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Minios-devel] [Unikraft] Support for KVM on ARM
On 30.04.2018 11:24, Simon Kuenzer wrote: Hay Ajay,you can actually do both - natively compile on ARM or doing a cross compilation. Unikraft's main makefile is able to detect this. This happens transparently. You can only influence it by setting the CROSS_COMPILE environment variable before calling make. You should need to remove the -mtune=cortex-a7 and -mcpu=cortex-a7 flags from unikraft/unikraft/arch/arm/Makefile.uk. Sorry, a "no" was missing here: Keep the -mtune=cortex-a7 and -mcpu=cortex-a7 flags. In fact, your GCC version might be too old. Unfortunately Unikraft is not warning you yet but ARM published a patch series that is going to warn you in the future.On ARM, I just tested the native compile with gcc (Debian 6.3.0-18) 6.3.0 20170516 I use the same for the cross compilation from x86: arm-linux-gnueabihf-gcc (Debian 6.3.0-18) 6.3.0 20170516For debugging, you can have a look what is getting called with the verbose option:make V=1 Thanks, Simon On 30.04.2018 10:27, Ajay Garg wrote:https://github.com/nim-lang/Nim/issues/2620 suggests it might be due to (old) gcc version.Any chance we can get the following via cross-compilation : * arm-options in menuconfig screen? * actually cross-compile for arm32 in unikraft ecosystem?On Mon, Apr 30, 2018 at 12:25 PM, Ajay Garg <ajaygargnsit@xxxxxxxxx <mailto:ajaygargnsit@xxxxxxxxx>> wrote:Hi Simon. Right now, you can test Unikraft with Xen on arm32. Be aware that there is a open bug on the memory allocator for arm (see:https://wiki.xenproject.org/wiki/Category:Unikraft_Users <https://wiki.xenproject.org/wiki/Category:Unikraft_Users>). arm64 with Xen is currently not supported but we working on it. Same for KVM and baremetal. We use cubieboard2/3 for arm32 tests. These boards are even officially supported by Debian and can run Xen. So we bought a cubieboard2 :) Brought the board up without xen. Then brought the board up with xen. At this point, "sudo xl list" lists "Domain-0" fine. Now, we are wanting to run the helloworld-unikraft-unikernel. To keep aside any cross-compilation issues, we are compiling on cubieboard2 itself. Following is the .config file (majorly containing the "ukdebug" and "ukboot" changes required for arm32) :################################################################################## # Automatically generated file; DO NOT EDIT. # Unikraft/0.2~8b94640 Configuration # # # Architecture Selection # # ARCH_X86_64 is not set ARCH_ARM_32=y # MARCH_CORTEXA7 is not set MARCH_A20NEON=y # # Platform Support # PLAT_XEN=y XEN_DBGEMERGENCY=y PLAT_LINUXU=y LINUXU_DEFAULT_HEAPMB=4 # # Library Configuration # HAVE_BOOTENTRY=y # HAVE_LIBC is not set # HAVE_SCHED is not set LIBUKBOOT=y LIBUKBOOT_BANNER=y LIBUKBOOT_MAXNBARGS=60 # LIBUKBOOT_INITALLOC is not set LIBUKDEBUG=y LIBUKDEBUG_PRINTK=y LIBUKDEBUG_PRINTD=y # LIBUKDEBUG_PRINTD_EXTRA is not set # LIBUKDEBUG_PRINTD_INFO is not set # LIBUKDEBUG_PRINTD_WARN is not set LIBUKDEBUG_PRINTD_ERR=y # LIBUKDEBUG_PRINTD_CRIT is not set # LIBUKDEBUG_NOREDIR is not set # LIBUKDEBUG_REDIR_PRINTD is not set LIBUKDEBUG_REDIR_PRINTK=y LIBUKDEBUG_ENABLE_ASSERT=y LIBUKARGPARSE=y LIBNOLIBC=y LIBUKALLOC=y # LIBUKALLOC_IFPAGES is not set # LIBUKALLOC_IFSTATS is not set # LIBUKALLOCBBUDDY is not set # LIBUKSCHED is not set # LIBUKSCHEDCOOP is not set LIBFDT=y # # Build Options # # OPTIMIZE_NONE is not set OPTIMIZE_PERF=y # OPTIMIZE_SIZE is not set # OPTIMIZE_DEADELIM is not set # DEBUG_SYMBOLS is not set OPTIMIZE_STRIP=y # RECORD_BUILDTIME is not set CROSS_COMPILE="" # # Application Options # APPHELLOWORLD_DEPENDENCIES=y APPHELLOWORLD_PRINTARGS=y UK_NAME="helloworld"#################################################################################However, upon compilation, following is observed :#################################################################################debian@debian-armhf:~/unikraft/apps/helloworld$ make make[1]: Entering directory '/home/debian/unikraft/unikraft' CP config CC libxenplat: hypervisor.o cc1: error: bad value (cortex-a7) for -mcpu switch cc1: error: bad value (cortex-a7) for -mtune switch /home/debian/unikraft/unikraft/support/build/Makefile.build:48: recipe for target'/home/debian/unikraft/apps/helloworld/build/libxenplat/hypervisor.o' failedmake[1]: ***[/home/debian/unikraft/apps/helloworld/build/libxenplat/hypervisor.o] Error1 make[1]: Leaving directory '/home/debian/unikraft/unikraft' Makefile:6: recipe for target 'all' failed make: *** [all] Error 2 debian@debian-armhf:~/unikraft/apps/helloworld$#################################################################################So, we proceed to remove the -mtune=cortex-a7 and -mcpu=cortex-a7 flags from unikraft/unikraft/arch/arm/Makefile.uk. Thereafter, upon recompiling, we get#################################################################################debian@debian-armhf:~/unikraft/apps/helloworld$ make make[1]: Entering directory '/home/debian/unikraft/unikraft' CP config CC libxenplat: hypervisor.o In file included from /home/debian/unikraft/unikraft/plat/xen/hypervisor.c:43:0: /home/debian/unikraft/unikraft/include/uk/arch/atomic.h: In function ‘ukarch_test_and_clr_bit’: /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:90:2: warning: implicit declaration of function ‘__atomic_fetch_and’ [-Wimplicit-function-declaration] /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:90:40: error: ‘__ATOMIC_RELAXED’ undeclared (first use in this function) /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:90:40: note: each undeclared identifier is reported only once for each function it appears in /home/debian/unikraft/unikraft/include/uk/arch/atomic.h: In function ‘ukarch_test_and_set_bit’: /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:105:2: warning: implicit declaration of function ‘__atomic_fetch_or’ [-Wimplicit-function-declaration] /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:105:38: error: ‘__ATOMIC_RELAXED’ undeclared (first use in this function) /home/debian/unikraft/unikraft/include/uk/arch/atomic.h: In function ‘ukarch_test_and_clr_bit_sync’: /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:148:40: error: ‘__ATOMIC_SEQ_CST’ undeclared (first use in this function) /home/debian/unikraft/unikraft/include/uk/arch/atomic.h: In function ‘ukarch_test_and_set_bit_sync’: /home/debian/unikraft/unikraft/include/uk/arch/atomic.h:161:38: error: ‘__ATOMIC_SEQ_CST’ undeclared (first use in this function) /home/debian/unikraft/unikraft/plat/xen/hypervisor.c: In function ‘do_hypervisor_callback’: /home/debian/unikraft/unikraft/plat/xen/hypervisor.c:71:2: warning: implicit declaration of function ‘__atomic_exchange_n’ [-Wimplicit-function-declaration] /home/debian/unikraft/unikraft/plat/xen/hypervisor.c:71:7: error: ‘__ATOMIC_SEQ_CST’ undeclared (first use in this function) /home/debian/unikraft/unikraft/support/build/Makefile.build:48: recipe for target'/home/debian/unikraft/apps/helloworld/build/libxenplat/hypervisor.o' failedmake[1]: ***[/home/debian/unikraft/apps/helloworld/build/libxenplat/hypervisor.o] Error1 make[1]: Leaving directory '/home/debian/unikraft/unikraft' Makefile:6: recipe for target 'all' failed make: *** [all] Error 2#################################################################################What are we missing? Thanks and Regards, Ajay Thanks and Regards, Ajay Thanks, Simon -- Regards, Ajay -- Regards, Ajay _______________________________________________ Minios-devel mailing list Minios-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/minios-devel
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |