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[bpf-next,0/5] samples: bpf: start effort to get rid of bpf_load

Message ID 20190227233046.11718-1-jakub.kicinski@netronome.com
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Series samples: bpf: start effort to get rid of bpf_load | expand

Message

Jakub Kicinski Feb. 27, 2019, 11:30 p.m. UTC 
Hi!

This set is next part of a quest to get rid of the bpf_load
ELF loader.  It fixes some minor issues with the samples and
starts the conversion.

First patch fixes ping invocations, ping localhost defaults
to IPv6 on modern setups. Next load_sock_ops sample is removed
and users are directed towards using bpftool directly.

Patch 4 removes the use of bpf_load from samples which don't
need the auto-attachment functionality at all.

Patch 5 improves symbol counting in libbpf, it's not currently
an issue but it will be when anyone adds a symbol with a long
name. Let's make sure that person doesn't have to spend time
scratching their head and wondering why .a and .so symbol
counts don't match.

Jakub Kicinski (5):
  samples: bpf: force IPv4 in ping
  samples: bpf: remove load_sock_ops in favour of bpftool
  tools: libbpf: add a correctly named define for map iteration
  samples: bpf: use libbpf where easy
  tools: libbpf: make sure readelf shows full names in build checks

 samples/bpf/.gitignore                        |  1 -
 samples/bpf/Makefile                          |  8 +-
 samples/bpf/fds_example.c                     |  9 +-
 samples/bpf/load_sock_ops.c                   | 97 -------------------
 samples/bpf/sock_example.c                    |  2 +-
 samples/bpf/sockex1_user.c                    | 24 ++---
 samples/bpf/sockex2_user.c                    | 22 +++--
 samples/bpf/sockex3_user.c                    |  2 +-
 samples/bpf/tcp_basertt_kern.c                |  2 +-
 samples/bpf/tcp_bpf.readme                    | 14 +--
 samples/bpf/tcp_bufs_kern.c                   |  2 +-
 samples/bpf/tcp_clamp_kern.c                  |  2 +-
 samples/bpf/tcp_cong_kern.c                   |  2 +-
 samples/bpf/tcp_iw_kern.c                     |  2 +-
 samples/bpf/tcp_rwnd_kern.c                   |  2 +-
 samples/bpf/tcp_synrto_kern.c                 |  2 +-
 samples/bpf/tcp_tos_reflect_kern.c            |  2 +-
 samples/bpf/tracex2_user.c                    |  2 +-
 tools/bpf/bpftool/prog.c                      |  4 +-
 tools/lib/bpf/Makefile                        |  4 +-
 tools/lib/bpf/libbpf.c                        |  8 +-
 tools/lib/bpf/libbpf.h                        |  3 +-
 tools/perf/util/bpf-loader.c                  |  4 +-
 .../testing/selftests/bpf/test_libbpf_open.c  |  2 +-
 24 files changed, 66 insertions(+), 156 deletions(-)
 delete mode 100644 samples/bpf/load_sock_ops.c