Commits on Jul 17, 2023

1. fix: don't compile libpcap RDMA support …

   Solves build error:
   
   ```
   % make
   TARGET_GOARCH=amd64 go generate
   Generating for amd64
   Compiled /tmp/pwru/kprobepwru_bpfel_x86.o
   Stripped /tmp/pwru/kprobepwru_bpfel_x86.o
   Wrote /tmp/pwru/kprobepwru_bpfel_x86.go
   Compiled /tmp/pwru/kprobemultipwru_bpfel_x86.o
   Stripped /tmp/pwru/kprobemultipwru_bpfel_x86.o
   Wrote /tmp/pwru/kprobemultipwru_bpfel_x86.go
   Compiled /tmp/pwru/kprobepwruwithoutoutputskb_bpfel_x86.o
   Stripped /tmp/pwru/kprobepwruwithoutoutputskb_bpfel_x86.o
   Wrote /tmp/pwru/kprobepwruwithoutoutputskb_bpfel_x86.go
   Compiled /tmp/pwru/kprobemultipwruwithoutoutputskb_bpfel_x86.o
   Stripped /tmp/pwru/kprobemultipwruwithoutoutputskb_bpfel_x86.o
   Wrote /tmp/pwru/kprobemultipwruwithoutoutputskb_bpfel_x86.go
   Wrote kprobemultipwru_bpfel_x86_getter.go
   Wrote kprobemultipwruwithoutoutputskb_bpfel_x86_getter.go
   Wrote kprobepwru_bpfel_x86_getter.go
   Wrote kprobepwruwithoutoutputskb_bpfel_x86_getter.go
   CC=cc GOARCH=amd64 CGO_ENABLED=1 go build  \
   	-ldflags "-w -s \
   	-X 'github.com/cilium/pwru/internal/pwru.Version=bc07418'"
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(nametoaddr.o): in function `pcap_nametoaddrinfo':
   /tmp/pwru/libpcap/./nametoaddr.c:207: warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(nametoaddr.o): in function `pcap_nametoaddr':
   /tmp/pwru/libpcap/./nametoaddr.c:181: warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(nametoaddr.o): in function `pcap_nametonetaddr':
   /tmp/pwru/libpcap/./nametoaddr.c:270: warning: Using 'getnetbyname_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(nametoaddr.o): in function `pcap_nametoproto':
   /tmp/pwru/libpcap/./nametoaddr.c:527: warning: Using 'getprotobyname_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `rdmasniff_read':
   /tmp/pwru/libpcap/./pcap-rdmasniff.c:126: undefined reference to `ibv_get_cq_event'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:135: undefined reference to `ibv_ack_cq_events'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:162: undefined reference to `ibv_wc_status_str'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `rdmasniff_activate':
   /tmp/pwru/libpcap/./pcap-rdmasniff.c:214: undefined reference to `ibv_open_device'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:221: undefined reference to `ibv_alloc_pd'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:228: undefined reference to `ibv_create_comp_channel'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:235: undefined reference to `ibv_create_cq'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:250: undefined reference to `ibv_create_qp'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:260: undefined reference to `ibv_modify_qp'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:268: undefined reference to `ibv_modify_qp'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `__ibv_reg_mr':
   /usr/include/infiniband/verbs.h:2535: undefined reference to `ibv_reg_mr'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `rdmasniff_activate':
   /tmp/pwru/libpcap/./pcap-rdmasniff.c:338: undefined reference to `ibv_dereg_mr'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:346: undefined reference to `ibv_destroy_qp'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:350: undefined reference to `ibv_destroy_cq'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:354: undefined reference to `ibv_destroy_comp_channel'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:358: undefined reference to `ibv_dealloc_pd'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:362: undefined reference to `ibv_close_device'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `___ibv_query_port':
   /usr/include/infiniband/verbs.h:2359: undefined reference to `ibv_query_port'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `rdmasniff_cleanup':
   /tmp/pwru/libpcap/./pcap-rdmasniff.c:83: undefined reference to `ibv_dereg_mr'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:85: undefined reference to `ibv_destroy_qp'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:86: undefined reference to `ibv_destroy_cq'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:87: undefined reference to `ibv_dealloc_pd'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:88: undefined reference to `ibv_destroy_comp_channel'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:89: undefined reference to `ibv_close_device'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `rdmasniff_create':
   /tmp/pwru/libpcap/./pcap-rdmasniff.c:386: undefined reference to `ibv_get_device_list'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:425: undefined reference to `ibv_free_device_list'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:391: undefined reference to `ibv_free_device_list'
   /usr/bin/ld: internal/libpcap/../../libpcap/libpcap.a(pcap-rdmasniff.o): in function `rdmasniff_findalldevs':
   /tmp/pwru/libpcap/./pcap-rdmasniff.c:437: undefined reference to `ibv_get_device_list'
   /usr/bin/ld: /tmp/pwru/libpcap/./pcap-rdmasniff.c:453: undefined reference to `ibv_free_device_list'
   collect2: error: ld returned 1 exit status
   make: *** [Makefile:19: pwru] Error 2
   zsh: exit 2     make
   ```
   
   Another option can be to add libibverbs to link options.
   
   Signed-off-by: Nerijus Bendžiūnas <nerijus.bendziunas@gmail.com>

   

   benner committed Jul 17, 2023
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