e64fbcaa7a
Clang (13) doesn't get the jokes about specifying libraries to link in cclags of individual .o objects: clang-13: warning: -lm: 'linker' input unused [-Wunused-command-line-argument] [ ... ] LD samples/bpf/xdp_redirect_cpu LD samples/bpf/xdp_redirect_map_multi LD samples/bpf/xdp_redirect_map LD samples/bpf/xdp_redirect LD samples/bpf/xdp_monitor /usr/bin/ld: samples/bpf/xdp_sample_user.o: in function `sample_summary_print': xdp_sample_user.c:(.text+0x84c): undefined reference to `floor' /usr/bin/ld: xdp_sample_user.c:(.text+0x870): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x8cf): undefined reference to `floor' /usr/bin/ld: xdp_sample_user.c:(.text+0x8f3): undefined reference to `ceil' [ more ] Specify '-lm' as ldflags for all xdp_sample_user.o users in the main Makefile and remove it from ccflags of ^ in Makefile.target -- just like it's done for all other samples. This works with all compilers. Fixes:6e1051a54e("samples: bpf: Convert xdp_monitor to XDP samples helper") Fixes:b926c55d85("samples: bpf: Convert xdp_redirect to XDP samples helper") Fixes:e531a220cc("samples: bpf: Convert xdp_redirect_cpu to XDP samples helper") Fixes:bbe65865aa("samples: bpf: Convert xdp_redirect_map to XDP samples helper") Fixes:594a116b2a("samples: bpf: Convert xdp_redirect_map_multi to XDP samples helper") Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/bpf/20211203195004.5803-2-alexandr.lobakin@intel.com
16 KiB
16 KiB