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Subject[PATCH RFC 0/5] add arm64 cross compilation support to BPF samples
The series adds cross compiler support for BPF samples and fixes issues
building for arm64.

Tested on my arm64 platform with good results, for x86 I have only build tested
it. There are no errors on building, however there is a build warning for x86
which I haven't yet gotten rid off (I believe the warning itself isn't of
consequence but rather a result of using the preprocessor in this way). I
appreciate any help testing for x86 and looking forward to any feedback on the
patches, thanks!

Joel Fernandes (5):
samples/bpf: Use getppid instead of getpgrp for array map stress
samples/bpf: Enable cross compiler support
samples/bpf: Fix inline asm issues building samples on arm64
samples/bpf: Fix pt_regs issues when cross-compiling
samples/bpf: Add documentation on cross compilation

samples/bpf/Makefile | 46 +++++++++++++++++++++++++-----
samples/bpf/README.rst | 10 +++++++
samples/bpf/arm64_asmstubs.h | 3 ++
samples/bpf/bpf_helpers.h | 61 ++++++++++++++++++++++++++++++++--------
samples/bpf/generic_asmstubs.h | 4 +++
samples/bpf/map_perf_test_kern.c | 2 +-
samples/bpf/map_perf_test_user.c | 2 +-
7 files changed, 107 insertions(+), 21 deletions(-)
create mode 100644 samples/bpf/arm64_asmstubs.h
create mode 100644 samples/bpf/generic_asmstubs.h

CC: Alexei Starovoitov <>
CC: Daniel Borkmann <>


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