selftests/bpf: Enable cross-building

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Build bpftool and resolve_btfids using the host toolchain when
cross-compiling, since they are executed during build to generate the
selftests. Add a host build directory in order to build both host and
target version of libbpf. Build host tools using $(HOSTCC) defined in
Makefile.include.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210113163319.1516382-2-jean-philippe@linaro.org

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Jean-Philippe Brucker 2021-01-13 17:33:16 +01:00 • committed by Andrii Nakryiko

parent 7c7a80ea5e

commit de11ae4f56

1 changed files with 35 additions and 11 deletions

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tools/testing/selftests/bpf/Makefile

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