libbpf: Fix Makefile' libbpf symbol mismatch diagnostic
commit5.4-rM2-2.2.x-imx-squashedb568405856
upstream. Fix Makefile's diagnostic diff output when there is LIBBPF_API-versioned symbols mismatch. Fixes:1bd6352459
("libbpf: handle symbol versioning properly for libbpf.a") Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20191127200134.1360660-1-andriin@fb.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -215,7 +215,7 @@ check_abi: $(OUTPUT)libbpf.so
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"versioned symbols in $^ ($(VERSIONED_SYM_COUNT))." \
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"Please make sure all LIBBPF_API symbols are" \
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"versioned in $(VERSION_SCRIPT)." >&2; \
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readelf -s --wide $(OUTPUT)libbpf-in.o | \
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readelf -s --wide $(BPF_IN_SHARED) | \
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cut -d "@" -f1 | sed 's/_v[0-9]_[0-9]_[0-9].*//' | \
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awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$8}'| \
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sort -u > $(OUTPUT)libbpf_global_syms.tmp; \
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