Hi Naresh,
On Tue, Oct 22, 2019 at 09:04:04PM +0530, Naresh Kamboju wrote:
We have noticed perf (OE recipe) build failure on linux next 20191022. do you see this failure ?
/bin/sh: 1: perf/1.0-r9/perf-1.0/scripts/bpf_helpers_doc.py: not found Makefile:184: recipe for target 'bpf_helper_defs.h' failed make[3]: *** [bpf_helper_defs.h] Error 127 make[3]: *** Deleting file 'bpf_helper_defs.h' Makefile.perf:765: recipe for target 'perf/1.0-r9/perf-1.0/libbpf.a' failed make[2]: *** [perf/1.0-r9/perf-1.0/libbpf.a] Error 2
I tested for two methods with linux-next, one is native building mode for Arm64 building on DB410c board, another is cross compiling Arm64 binary on my x86 laptop. Both cannot reproduce this failure.
After read your shared build log and I think the building process is expected: Perf tool tries to build libbpf, so it changes to the building folder 'BPF_DIR' (which is under $(srctree)/tools/lib/bpf/), then failed to find file $(srctree)/scripts/bpf_helpers_doc.py.
Here $(srctree) means the kernel's root folder.
Seems to me, this failure is caused by missing to sync kernel files $linux_src/scripts to the OE folder 'perf/1.0-r9/perf-1.0/scripts'?
Thanks, Leo Yan
Metadata:
kernel: 5.4.0-rc4 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git branch: master git commit: a722f75b2923b4fd44c17e7255e822ac48fe85f0 git describe: next-20191022 Test details: https://qa-reports.linaro.org/lkft/linux-next-oe/build/next-20191022
Full build log: https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-next/DISTRO=lkft...
- Naresh