[dpdk-users] A compilation problem on arm64

[David Marchand]

On Sun, Jan 17, 2021 at 11:04 PM LemmyHuang <hlm3280 at qq.com> wrote:
>
> Dear Concerns,
>
>
> I have a compilation problem on arm64.
> My environment is dpdk-19.11, gcc-9.3.1 and kernel-5.10.0-0.0.0.7.aarch64. The errors are as follows:
>
>
> >> ...
> >>   CC [M]  /home/abuild/rpmbuild/BUILD/dpdk-19.11/arm64-armv8a-linux-gcc/build/kernel/linux/kni/kni_misc.o [0m
> >>   CC [M]  /home/abuild/rpmbuild/BUILD/dpdk-19.11/arm64-armv8a-linux-gcc/build/kernel/linux/kni/kni_net.o [0m
> >>   LD librte_common_octeontx2.so.20.0 [0m
> >>   INSTALL-LIB librte_common_octeontx2.so.20.0 [0m
> >> == Build drivers/bus [0m
> >> In file included from ./include/linux/atomic.h:7, [0m
> >>                  from ./include/asm-generic/bitops/atomic.h:5, [0m
> >>                  from ./arch/arm64/include/asm/bitops.h:26, [0m
> >>                  from ./include/linux/bitops.h:29, [0m
> >>                  from ./include/linux/kernel.h:12, [0m
> >>                  from ./include/linux/list.h:9, [0m
> >>                  from ./include/linux/rculist.h:10, [0m
> >>                  from ./include/linux/pid.h:5, [0m
> >>                  from ./include/linux/sched.h:14, [0m
> >>                  from ./include/linux/ratelimit.h:6, [0m
> >>                  from ./include/linux/dev_printk.h:16, [0m
> >>                  from ./include/linux/device.h:15, [0m
> >>                  from /home/abuild/rpmbuild/BUILD/dpdk-19.11/arm64-armv8a-linux-gcc/build/kernel/linux/igb_uio/igb_uio.c:8: [0m
> >> ./include/linux/atomic-arch-fallback.h: In function 'igbuio_pci_open': [0m
> >> ./arch/arm64/include/asm/atomic.h:20:20: error: inlining failed in call to 'arch_atomic_sub.constprop': --param max-inline-insns-single-O2 limit reached [-Werror=inline] [0m
> >>    20 | static inline void arch_##op(int i, atomic_t *v)   \ [0m
> >>       |                    ^~~~~ [0m
> >> ./arch/arm64/include/asm/atomic.h:30:1: note: in expansion of macro 'ATOMIC_OP' [0m
> >>    30 | ATOMIC_OP(atomic_sub) [0m
> >>       | ^~~~~~~~~ [0m
> >> In file included from ./include/linux/atomic.h:81, [0m
> >>                  from ./include/asm-generic/bitops/atomic.h:5, [0m
> >>                  from ./arch/arm64/include/asm/bitops.h:26, [0m
> >>                  from ./include/linux/bitops.h:29, [0m
> >>                  from ./include/linux/kernel.h:12, [0m
> >>                  from ./include/linux/list.h:9, [0m
> >>                  from ./include/linux/rculist.h:10, [0m
> >>                  from ./include/linux/pid.h:5, [0m
> >>                  from ./include/linux/sched.h:14, [0m
> >>                  from ./include/linux/ratelimit.h:6, [0m
> >>                  from ./include/linux/dev_printk.h:16, [0m
> >>                  from ./include/linux/device.h:15, [0m
> >>                  from /home/abuild/rpmbuild/BUILD/dpdk-19.11/arm64-armv8a-linux-gcc/build/kernel/linux/igb_uio/igb_uio.c:8: [0m
> >> ./include/linux/atomic-arch-fallback.h:441:2: note: called from here [0m
> >>   441 |  arch_atomic_sub(1, v); [0m
> >>       |  ^~~~~~~~~~~~~~~~~~~~~ [0m
> >> cc1: all warnings being treated as errors [0m
> >> make[6]: *** [scripts/Makefile.build:279: /home/abuild/rpmbuild/BUILD/dpdk-19.11/arm64-armv8a-linux-gcc/build/kernel/linux/igb_uio/igb_uio.o] Error 1 [0m
> >> make[5]: *** [Makefile:1805: /home/abuild/rpmbuild/BUILD/dpdk-19.11/arm64-armv8a-linux-gcc/build/kernel/linux/igb_uio] Error 2 [0m
> >> make[4]: *** [/home/abuild/rpmbuild/BUILD/dpdk-19.11/mk/rte.module.mk:51: igb_uio.ko] Error 2 [0m
> >> make[3]: *** [/home/abuild/rpmbuild/BUILD/dpdk-19.11/mk/rte.subdir.mk:37: igb_uio] Error 2 [0m
> >> make[3]: *** Waiting for unfinished jobs.... [0m
> >> ...

This is hard to read, please paste raw outputs.
This error does not ring a bell, this is probably kernel/arch specific.
I copied Luca who maintains 19.11.

On the other hand, rather than fixing igb_uio build, why don't you use vfio-pci?


-- 
David Marchand