Thank you! > But really, you all should be using 4.19 at this point in time :) We're trying, but it crashes for us in netfilter code :(. Currently we're applying a series of patches from the net-dev tree to the nf_conncount code to see if it fixes the issues. Will definitely make sure they go to stable, when confirming the issue is fixed. Regards, Ignat On Thu, Jan 10, 2019 at 2:01 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Tue, Jan 08, 2019 at 06:52:35PM +0000, Ignat Korchagin wrote: > > Good day, > > > > We have started to compile libbpf as part of our Linux compilation > > build plan, however libbpf fails to cross-compile for arm64 on Linux > > 4.14, but succeeds on Linux 4.19 tree. > > > > We compile libbpf with the following command: > > make -C <whatever>/linux-4.14.91/tools/lib/bpf ARCH=arm64 > > CROSS_COMPILE=aarch64-linux-gnu- install > > > > And get the below output on 4.14 tree: > > Auto-detecting system features: > > ... libelf: [ on ] > > ... bpf: [ on ] > > > > CC /cfsetup_build/build/arm64/libbpf/libbpf.o > > CC /cfsetup_build/build/arm64/libbpf/bpf.o > > LD /cfsetup_build/build/arm64/libbpf/libbpf-in.o > > ld: /cfsetup_build/build/arm64/libbpf/libbpf.o: Relocations in generic > > ELF (EM: 183) > > ld: /cfsetup_build/build/arm64/libbpf/libbpf.o: Relocations in generic > > ELF (EM: 183) > > ld: /cfsetup_build/build/arm64/libbpf/libbpf.o: Relocations in generic > > ELF (EM: 183) > > ld: /cfsetup_build/build/arm64/libbpf/libbpf.o: Relocations in generic > > ELF (EM: 183) > > ld: /cfsetup_build/build/arm64/libbpf/libbpf.o: Relocations in generic > > ELF (EM: 183) > > ld: /cfsetup_build/build/arm64/libbpf/libbpf.o: Relocations in generic > > ELF (EM: 183) > > /cfsetup_build/build/arm64/libbpf/libbpf.o: error adding symbols: File > > in wrong format > > /cfsetup_build/build/linux-4.14.91/tools/build/Makefile.build:144: > > recipe for target '/cfsetup_build/build/arm64/libbpf/libbpf-in.o' > > failed > > make[2]: *** [/cfsetup_build/build/arm64/libbpf/libbpf-in.o] Error 1 > > Makefile:158: recipe for target > > '/cfsetup_build/build/arm64/libbpf/libbpf-in.o' failed > > make[1]: *** [/cfsetup_build/build/arm64/libbpf/libbpf-in.o] Error 2 > > > > Backporting the following commit fixed the build: > > 7ed1c1901fe52e6c5828deb155920b44b0adabb1: tools: fix cross-compile var > > clobbering > > > > Can we have it officially applied to the Linux 4.14 tree, please? > > Now queued up, thanks. > > But really, you all should be using 4.19 at this point in time :) > > thanks, > > greg k-h
