[PATCH 00/10] bpf samples: Uses libbpf in tools/lib to do BPF operations

[Wang Nan <wangnan0@huawei.com>]

Since we already have libbpf in tools/lib, we don't need to maintain
another bpf loader and operations library in samples/bpf.

In patchset:

 Patch 1/10 - 7/10 improves libbpf, add missing features to support
 samples,

 Patch 8/10 adds utils.[ch], which creates similar API like old
 bpf_load.c and libbpf.c.

 Patch 9/10 replace all sampels to use API provides by utils.[ch] and
 libbpf.

 Patch 10/10 removes unneeded files.

 Cc: Alexei Starovoitov <ast@kernel.org>
 Cc: Alex Gartrell <agartrell@fb.com>
 Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
 Cc: Brenden Blanco <bblanco@plumgrid.com>
 Cc: Daniel Borkmann <daniel@iogearbox.net>
 Cc: Daniel Wagner <daniel.wagner@bmw-carit.de>
 Cc: David S. Miller <davem@davemloft.net>
 Cc: Ingo Molnar <mingo@kernel.org>
 Cc: Jiri Olsa <jolsa@kernel.org>
 Cc: Kaixu Xia <xiakaixu@huawei.com>
 Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
 Cc: Yang Shi <yang.shi@linaro.org>

Wang Nan (10):
  bpf samples: bpf: Fix tracex5_kern.c compiling error
  bpf tools: Define LD and RM in Makefile for 'make -R'
  bpf tools: Add const decoretor to 'license' and 'insns' for
    bpf_load_program()
  bpf tools: Switch to uapi style type names
  bpf tools: Support load different type of programs
  bpf tools: Support new map operations
  bpf tools: Support BPF_OBJ_PIN and BPF_OBJ_GET
  bpf samples: Add utils.[ch] for using BPF
  bpf samples: Uses libbpf in tools/lib to deal with BPF operations
  bpf samples: Remove old BPF helpers

 samples/bpf/Makefile              |  65 +++----
 samples/bpf/bpf_load.c            | 345 --------------------------------------
 samples/bpf/bpf_load.h            |  27 ---
 samples/bpf/fds_example.c         |  26 +--
 samples/bpf/include/linux/err.h   |  56 +++++++
 samples/bpf/lathist_user.c        |  13 +-
 samples/bpf/libbpf.c              | 154 -----------------
 samples/bpf/sock_example.c        |  13 +-
 samples/bpf/sockex1_kern.c        |   2 +
 samples/bpf/sockex1_user.c        |  27 +--
 samples/bpf/sockex2_kern.c        |   2 +
 samples/bpf/sockex2_user.c        |  26 +--
 samples/bpf/sockex3_kern.c        |   2 +
 samples/bpf/sockex3_user.c        |  23 ++-
 samples/bpf/test_maps.c           |  80 ++++-----
 samples/bpf/test_verifier.c       |  13 +-
 samples/bpf/trace_output_user.c   |  17 +-
 samples/bpf/tracex1_user.c        |   9 +-
 samples/bpf/tracex2_user.c        |  31 ++--
 samples/bpf/tracex3_user.c        |  15 +-
 samples/bpf/tracex4_user.c        |  15 +-
 samples/bpf/tracex5_kern.c        |   1 +
 samples/bpf/tracex5_user.c        |   9 +-
 samples/bpf/tracex6_user.c        |  16 +-
 samples/bpf/utils.c               | 276 ++++++++++++++++++++++++++++++
 samples/bpf/{libbpf.h => utils.h} |  58 ++++---
 tools/lib/bpf/Makefile            |   2 +
 tools/lib/bpf/bpf.c               |  65 ++++++-
 tools/lib/bpf/bpf.h               |  16 +-
 tools/lib/bpf/libbpf.c            |  43 ++++-
 tools/lib/bpf/libbpf.h            |  16 ++
 31 files changed, 718 insertions(+), 745 deletions(-)
 delete mode 100644 samples/bpf/bpf_load.c
 delete mode 100644 samples/bpf/bpf_load.h
 create mode 100644 samples/bpf/include/linux/err.h
 delete mode 100644 samples/bpf/libbpf.c
 create mode 100644 samples/bpf/utils.c
 rename samples/bpf/{libbpf.h => utils.h} (81%)

-- 
1.8.3.4