Hoi,
> >
> > I went to have a quick look at this but can’t built bpftool:
> >
> > ERROR: bpftool-native-1.0-r0 do_compile: oe_runmake failed
> > ERROR: bpftool-native-1.0-r0 do_compile:
> > ExecutionError('/work/ross/build/tmp/work/aarch64-linux/bpftool-native/1.0/temp/run.do_compi)
> > ERROR: Logfile of failure stored in:
> > /work/ross/build/tmp/work/aarch64-linux/bpftool-native/1.0/temp/log.do_compile.1052635
> > Log data follows:
> > | DEBUG: Executing shell function do_compile
> > | NOTE: make -j 64 V=1 -C
> > /work/ross/build/tmp/work-shared/qemuarm64/kernel-source/tools/bpf/bpftool
> > O=/work/ross/build/tmp/work/aarcn
> > | make: Entering directory
> > '/work/ross/build/tmp/work-shared/qemuarm64/kernel-source/tools/bpf/bpftool'
> > | gcc: error: unrecognized command-line option ‘-fcanon-prefix-map’; did
> > you mean ‘-fmacro-prefix-map=’?
> > |
> > | Auto-detecting system features:
> > | ... clang-bpf-co-re: [ OFF ]
> > | ... llvm: [ OFF ]
> > | ... libcap: [ OFF ]
> > | ... libbfd: [ OFF ]
> > |
> > | make -C
> > /work/ross/build/tmp/work-shared/qemuarm64/kernel-source/tools/lib/bpf
> > OUTPUT=/work/ross/build/tmp/work/aarch64-linux/bpfto\
> > |
> > DESTDIR=/work/ross/build/tmp/work/aarch64-linux/bpftool-native/1.0/bpftool-1.0/libbpf
> > prefix= /work/ross/build/tmp/work/aarchs
> > | make[1]: Entering directory
> > '/work/ross/build/tmp/work-shared/qemuarm64/kernel-source/tools/lib/bpf'
> > | gcc: error: unrecognized command-line option ‘-fcanon-prefix-map’; did
> > you mean ‘-fmacro-prefix-map=’?
> > | gcc: error: unrecognized command-line option ‘-fcanon-prefix-map’; did
> > you mean ‘-fmacro-prefix-map=’?
> >
> > Looks like a problem with the host compiler being passed target flags.
> > Have you seen this?
>
> Yes, bpftool is passing DEBUG_PREFIX_MAP to the host compiler when building
> natively, which won’t work.
>
> I worked around that and had a look. A less ugly and probably upstreamable
> solution might be to add —sysroot to propagate_cflags in meson.build, and add
> the sysroot to CFLAGS directly in the recipe. For historical reasons we pass
> the sysroot via CC, but specifying it twice won’t hurt.
>
> Ross
>
just tried out your hint with the '--sysroot=`, works wonderfully
-> i'll rework the patchset into v2 to use that instead
thanks!
gruß
Johannes
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