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| author | Yauheni Kaliuta <yauheni.kaliuta@redhat.com> | 2020-05-25 09:18:46 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-06-02 00:38:20 +0300 |
| commit | 55983299b7ea94d714c19cdfd8d969ba86e0d7e9 (patch) | |
| tree | 7fe16a98c535f3cb14c784a444ef57cb61d69213 /tools/lib | |
| parent | 0142dddcbe965450338076c486d0d757b3184352 (diff) | |
| download | linux-55983299b7ea94d714c19cdfd8d969ba86e0d7e9.tar.xz | |
libbpf: Use .so dynamic symbols for abi check
Since dynamic symbols are used for dynamic linking it makes sense to
use them (readelf --dyn-syms) for abi check.
Found with some configuration on powerpc where linker puts
local *.plt_call.* symbols into .so.
Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200525061846.16524-1-yauheni.kaliuta@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index d02c4d910aad..bf8ed134cb8a 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -151,7 +151,7 @@ GLOBAL_SYM_COUNT = $(shell readelf -s --wide $(BPF_IN_SHARED) | \ sed 's/\[.*\]//' | \ awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}' | \ sort -u | wc -l) -VERSIONED_SYM_COUNT = $(shell readelf -s --wide $(OUTPUT)libbpf.so | \ +VERSIONED_SYM_COUNT = $(shell readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \ grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | sort -u | wc -l) CMD_TARGETS = $(LIB_TARGET) $(PC_FILE) @@ -218,7 +218,7 @@ check_abi: $(OUTPUT)libbpf.so sed 's/\[.*\]//' | \ awk '/GLOBAL/ && /DEFAULT/ && !/UND/ {print $$NF}'| \ sort -u > $(OUTPUT)libbpf_global_syms.tmp; \ - readelf -s --wide $(OUTPUT)libbpf.so | \ + readelf --dyn-syms --wide $(OUTPUT)libbpf.so | \ grep -Eo '[^ ]+@LIBBPF_' | cut -d@ -f1 | \ sort -u > $(OUTPUT)libbpf_versioned_syms.tmp; \ diff -u $(OUTPUT)libbpf_global_syms.tmp \ |