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authorAlexander Lobakin <alexandr.lobakin@intel.com>2022-04-04 14:54:51 +0300
committerAndrii Nakryiko <andrii@kernel.org>2022-04-05 00:45:06 +0300
commitfc843ccd8e4c084fa5d605a876db2d3a3c38be88 (patch)
treee3727a32e93f0f94c1a41a234e59527fefe42018 /samples/bpf
parent35f91d1fe106cd474ac0463157d012c675385e18 (diff)
downloadlinux-fc843ccd8e4c084fa5d605a876db2d3a3c38be88.tar.xz
samples: bpf: Fix linking xdp_router_ipv4 after migration
Users of the xdp_sample_user infra should be explicitly linked with the standard math library (`-lm`). Otherwise, the following happens: /usr/bin/ld: xdp_sample_user.c:(.text+0x59fc): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x5a0d): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x5adc): undefined reference to `floor' /usr/bin/ld: xdp_sample_user.c:(.text+0x5b01): undefined reference to `ceil' /usr/bin/ld: xdp_sample_user.c:(.text+0x5c1e): undefined reference to `floor' /usr/bin/ld: xdp_sample_user.c:(.text+0x5c43): undefined reference to `ceil [...] That happened previously, so there's a block of linkage flags in the Makefile. xdp_router_ipv4 has been transferred to this infra quite recently, but hasn't been added to it. Fix. Fixes: 85bf1f51691c ("samples: bpf: Convert xdp_router_ipv4 to XDP samples helper") Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220404115451.1116478-1-alexandr.lobakin@intel.com
Diffstat (limited to 'samples/bpf')
-rw-r--r--samples/bpf/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index b4fa0e69aa14..342a41a10356 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -219,6 +219,7 @@ TPROGLDLIBS_xdp_redirect += -lm
TPROGLDLIBS_xdp_redirect_cpu += -lm
TPROGLDLIBS_xdp_redirect_map += -lm
TPROGLDLIBS_xdp_redirect_map_multi += -lm
+TPROGLDLIBS_xdp_router_ipv4 += -lm
TPROGLDLIBS_tracex4 += -lrt
TPROGLDLIBS_trace_output += -lrt
TPROGLDLIBS_map_perf_test += -lrt