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Groups > linux.kernel > #1562306

[PATCH perf/core 0/6] Libbpf improvements

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Patch 1 fixes an issue when using drastically different BPF map definitions
inside ELFs from a client using libbpf, vs the map definition libbpf uses.

Patch 2 is a trivial typo fix.

Patches 3-5 add some simple, useful helper functions for setting prog type
and retrieving libbpf errors without depending on kernel headers from
userspace programs.

Patch 6 adds a new pinning functionality for an entire object. Calling
bpf_object__pin(obj, subpath) will mount all programs from the BPF object
to $bpf_fs_path/$subpath/progs/$progname, and all maps from the BPF object
to $bpf_fs_path/$subpath/maps/$mapname. The first program with a particular
name will be mounted with its progname and the suffix "_0"; subsequent
programs with the same will have "_1", and so on; duplicate maps with the
same name are disallowed.

Joe Stringer (6):
  tools lib bpf: Fix map offsets in relocation
  tools lib bpf: Fix grammar in map_idx warning
  tools lib bpf: Define prog_type fns with macro
  tools lib bpf: Add set/is helpers for all prog types
  tools lib bpf: Add libbpf_get_error()
  tools lib bpf: Add bpf_object__pin()

 tools/lib/bpf/libbpf.c  | 197 +++++++++++++++++++++++++++++++++++++++++-------
 tools/lib/bpf/libbpf.h  |  15 +++-
 tools/perf/tests/llvm.c |   2 +-
 3 files changed, 185 insertions(+), 29 deletions(-)

-- 
2.11.0

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[PATCH perf/core 0/6] Libbpf improvements Joe Stringer <joe@ovn.org> - 2017-01-19 01:00 +0100
  [PATCH perf/core 2/6] tools lib bpf: Fix grammar in map_idx warning Joe Stringer <joe@ovn.org> - 2017-01-19 01:00 +0100
    Re: [PATCH perf/core 2/6] tools lib bpf: Fix grammar in map_idx  warning "Wangnan (F)" <wangnan0@huawei.com> - 2017-01-19 11:20 +0100
  [PATCH perf/core 4/6] tools lib bpf: Add set/is helpers for all prog types Joe Stringer <joe@ovn.org> - 2017-01-19 01:00 +0100
  [PATCH perf/core 5/6] tools lib bpf: Add libbpf_get_error() Joe Stringer <joe@ovn.org> - 2017-01-19 01:10 +0100
  [PATCH perf/core 1/6] tools lib bpf: Fix map offsets in relocation Joe Stringer <joe@ovn.org> - 2017-01-19 01:10 +0100
    Re: [PATCH perf/core 1/6] tools lib bpf: Fix map offsets in  relocation "Wangnan (F)" <wangnan0@huawei.com> - 2017-01-19 07:10 +0100
    [PATCH -improve] tools lib bpf: Fix map offsets in relocation Wang Nan <wangnan0@huawei.com> - 2017-01-19 11:00 +0100
  [PATCH perf/core 3/6] tools lib bpf: Define prog_type fns with macro Joe Stringer <joe@ovn.org> - 2017-01-19 01:10 +0100
  [PATCH perf/core 6/6] tools lib bpf: Add bpf_object__pin() Joe Stringer <joe@ovn.org> - 2017-01-19 01:10 +0100
    Re: [PATCH perf/core 6/6] tools lib bpf: Add bpf_object__pin() "Wangnan (F)" <wangnan0@huawei.com> - 2017-01-19 11:30 +0100
      Re: [PATCH perf/core 6/6] tools lib bpf: Add bpf_object__pin() Joe Stringer <joe@ovn.org> - 2017-01-20 01:00 +0100
  Re: [PATCH perf/core 0/6] Libbpf improvements "Wangnan (F)" <wangnan0@huawei.com> - 2017-01-19 11:30 +0100
    Re: [PATCH perf/core 0/6] Libbpf improvements Joe Stringer <joe@ovn.org> - 2017-01-23 02:20 +0100

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