On Wed, Jun 26, 2019 at 1:41 AM Srinivas Ramana <sramana@xxxxxxxxxxxxxx> wrote: > > + Joel if he has seen this issue. > I have not seen this issue and it has been some time since I built BPF samples, sorry. I am mostly building BPF programs through bcc/bpftrace and Android's build system. We ought to make samples easier to build though, I remember when I built it last year there were header related issues which should be fixed. It could be that new BPF features broke it again. J. > On 5/28/2019 2:27 PM, Srinivas Ramana wrote: > > Hello, > > > > I am trying to build samples/bpf in kernel(5.2.0-rc1) but unsuccessful > > with below errors. Can you help to point what i am missing or if there > > is some known issue? > > > > ==============================8<=================================== > > $ make samples/bpf/ > > LLC=/local/mnt/workspace/tools/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/llc > > CLANG=/local/mnt/workspace/tools/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/clang > > V=1 > > make -C /local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel -f > > /local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel/Makefile > > samples/bpf/ > > ................ > > ................ > > ................ > > make KBUILD_MODULES=1 -f ./scripts/Makefile.build obj=samples/bpf > > (cat /dev/null; ) > samples/bpf/modules.order > > make -C > > /local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel/samples/bpf/../../tools/lib/bpf/ > > RM='rm -rf' LDFLAGS= > > srctree=/local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel/samples/bpf/../../ > > O= > > > > Auto-detecting system features: > > ... libelf: [ on ] > > ... bpf: [ on ] > > > > make -C > > /local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel/samples/bpf/../..//tools/build > > CFLAGS= LDFLAGS= fixdep > > make -f > > /local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel/samples/bpf/../..//tools/build/Makefile.build > > dir=. obj=fixdep > > ld -r -o fixdep-in.o fixdep.o > > ld: fixdep.o: Relocations in generic ELF (EM: 183) > > ld: fixdep.o: Relocations in generic ELF (EM: 183) > > fixdep.o: error adding symbols: File in wrong format > > make[5]: *** [fixdep-in.o] Error 1 > > make[4]: *** [fixdep-in.o] Error 2 > > make[3]: *** [fixdep] Error 2 > > make[2]: *** > > [/local/mnt/workspace/sramana/kdev_torvalds/kdev/kernel/samples/bpf/../../tools/lib/bpf/libbpf.a] > > Error 2 > > make[1]: *** [samples/bpf/] Error 2 > > make: *** [sub-make] Error 2 > > ==============================>8======================================= > > > > > > I am using the below commands to build: > > ======================================================== > > export ARCH=arm64 > > export CROSS_COMPILE=<path>linaro-toolchain/5.1/bin/aarch64-linux-gnu- > > export CLANG_TRIPLE=arm64-linux-gnu- > > > > make > > CC=<path>/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/clang > > defconfig > > > > make > > CC=<path>/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/clang > > -j8 > > > > make > > CC=<path>/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/clang > > headers_install INSTALL_HDR_PATH=./usr > > > > make samples/bpf/ > > LLC=<path>/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/llc > > CLANG=<path>/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/clang > > V=1 > > CC=<path>/clang_ubuntu/clang/clang+llvm-8.0.0-x86_64-linux-gnu-ubuntu-14.04/bin/clang > > > > ======================================================== > > > > Thanks, > > -- Srinivas R > > > > > -- > Qualcomm India Private Limited, on behalf of Qualcomm Innovation > Center, Inc., is a member of Code Aurora Forum, a Linux Foundation > Collaborative Project
