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| author | Yulia Kartseva <hex@fb.com> | 2020-01-30 15:13:10 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-01-30 16:19:47 -0800 |
| commit | 2577e373bbc07f18680287b3958d3b2fdebe4b20 (patch) | |
| tree | 48a10d37021cb4641f66e7e8af8e90a99c39a3e3 /Makefile | |
| parent | d3e42bb0a329fadff98fcb927714d0a486840e3b (diff) | |
runqslower: Fix Makefile
Fix undefined reference linker errors when building runqslower with
gcc 7.4.0 on Ubuntu 18.04.
The issue is with misplaced -lelf, -lz options in Makefile:
$(Q)$(CC) $(CFLAGS) -lelf -lz $^ -o $@
-lelf, -lz options should follow the list of target dependencies:
$(Q)$(CC) $(CFLAGS) $^ -lelf -lz -o $@
or after substitution
cc -g -Wall runqslower.o libbpf.a -lelf -lz -o runqslower
The current order of gcc params causes failure in libelf symbols resolution,
e.g. undefined reference to `elf_memory'
Fixes: 9c01546d26d2 ("tools/bpf: Add runqslower tool to tools/bpf")
Signed-off-by: Julia Kartseva <hex@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/908498f794661c44dca54da9e09dc0c382df6fcb.1580425879.git.hex@fb.com
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions