From fc843ccd8e4c084fa5d605a876db2d3a3c38be88 Mon Sep 17 00:00:00 2001 From: Alexander Lobakin Date: Mon, 4 Apr 2022 13:54:51 +0200 Subject: 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 Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20220404115451.1116478-1-alexandr.lobakin@intel.com --- samples/bpf/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'samples') 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 -- cgit v1.2.3