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android / platform / external / libbpf / 90941cd
commit90941cde5ff2a8818ddd8a55faf778d6c3c29008[log] [tgz]
authorAndrii Nakryiko <andriin@fb.com>Tue May 19 16:06:54 2020 -0700
committerAndrii Nakryiko <andrii.nakryiko@gmail.com>Wed May 20 01:00:06 2020 -0700
treeacd75c9bc0e246e1dd70f22c062d4641374e7ffa
parent97a0d1e7b50e1e43690e778747a13a257df62282 [diff]
sync: latest libbpf changes from kernel

Syncing latest libbpf commits from kernel repository.
Baseline bpf-next commit:   c321022244708aec4675de4f032ef1ba9ff0c640
Checkpoint bpf-next commit: dda18a5c0b75461d1ed228f80b59c67434b8d601
Baseline bpf commit:        7f645462ca01d01abb94d75e6768c8b3ed3a188b
Checkpoint bpf commit:      f85c1598ddfe83f61d0656bd1d2025fa3b148b99

Alexei Starovoitov (1):
  tools/bpf: sync bpf.h

Andrey Ignatov (2):
  bpf: Support narrow loads from bpf_sock_addr.user_port
  bpf: Introduce bpf_sk_{, ancestor_}cgroup_id helpers

Daniel Borkmann (2):
  bpf: Add get{peer, sock}name attach types for sock_addr
  bpf, libbpf: Enable get{peer, sock}name attach types

Eelco Chaudron (1):
  libbpf: Fix probe code to return EPERM if encountered

Gustavo A. R. Silva (1):
  bpf, libbpf: Replace zero-length array with flexible-array

Horatiu Vultur (1):
  net: bridge: Add port attribute IFLA_BRPORT_MRP_RING_OPEN

Ian Rogers (2):
  libbpf, hashmap: Remove unused #include
  libbpf, hashmap: Fix signedness warnings

Quentin Monnet (1):
  tools, bpf: Synchronise BPF UAPI header with tools

Song Liu (2):
  bpf: Sharing bpf runtime stats with BPF_ENABLE_STATS
  libbpf: Add support for command BPF_ENABLE_STATS

Stanislav Fomichev (2):
  bpf: Bpf_{g,s}etsockopt for struct bpf_sock_addr
  bpf: Allow any port in bpf_bind helper

Sumanth Korikkar (1):
  libbpf: Fix register naming in PT_REGS s390 macros

Yonghong Song (7):
  bpf: Allow loading of a bpf_iter program
  bpf: Support bpf tracing/iter programs for BPF_LINK_CREATE
  bpf: Create anonymous bpf iterator
  bpf: Add bpf_seq_printf and bpf_seq_write helpers
  tools/libbpf: Add bpf_iter support
  tools/libpf: Add offsetof/container_of macro in bpf_helpers.h
  bpf: Change btf_iter func proto prefix to "bpf_iter_"

 include/uapi/linux/bpf.h     | 208 +++++++++++++++++++++++++++--------
 include/uapi/linux/if_link.h |   1 +
 src/bpf.c                    |  20 ++++
 src/bpf.h                    |   3 +
 src/bpf_helpers.h            |  14 +++
 src/bpf_tracing.h            |  20 +++-
 src/hashmap.c                |   5 +-
 src/hashmap.h                |   1 -
 src/libbpf.c                 |  98 +++++++++++++++--
 src/libbpf.h                 |   9 ++
 src/libbpf.map               |   3 +
 src/libbpf_internal.h        |   2 +-
 12 files changed, 322 insertions(+), 62 deletions(-)

--
2.24.1
2 files changed
tree: acd75c9bc0e246e1dd70f22c062d4641374e7ffa
  1. include/
  2. scripts/
  3. src/
  4. travis-ci/
  5. .lgtm.yml
  6. .travis.yml
  7. BPF-CHECKPOINT-COMMIT
  8. CHECKPOINT-COMMIT
  9. LICENSE
  10. LICENSE.BSD-2-Clause
  11. LICENSE.LPGL-2.1
  12. README.md
README.md

This is a mirror of bpf-next linux tree's tools/lib/bpf directory plus its supporting header files.

The following files will by sync'ed with bpf-next repo:

  • src/ <-> bpf-next/tools/lib/bpf/
  • include/uapi/linux/bpf_common.h <-> bpf-next/tools/include/uapi/linux/bpf_common.h
  • include/uapi/linux/bpf.h <-> bpf-next/tools/include/uapi/linux/bpf.h
  • include/uapi/linux/btf.h <-> bpf-next/tools/include/uapi/linux/btf.h
  • include/uapi/linux/if_link.h <-> bpf-next/tools/include/uapi/linux/if_link.h
  • include/uapi/linux/if_xdp.h <-> bpf-next/tools/include/uapi/linux/if_xdp.h
  • include/uapi/linux/netlink.h <-> bpf-next/tools/include/uapi/linux/netlink.h
  • include/tools/libc_compat.h <-> bpf-next/tools/include/tools/libc_compat.h

Other header files at this repo (include/linux/*.h) are reduced versions of their counterpart files at bpf-next's tools/include/linux/*.h to make compilation successful.

Build Build Status Total alerts Coverity

libelf is an internal dependency of libbpf and thus it is required to link against and must be installed on the system for applications to work. pkg-config is used by default to find libelf, and the program called can be overridden with PKG_CONFIG. If using pkg-config at build time is not desired, it can be disabled by setting NO_PKG_CONFIG=1 when calling make.

To build both static libbpf.a and shared libbpf.so:

$ cd src
$ make

To build only static libbpf.a library in directory build/ and install them together with libbpf headers in a staging directory root/:

$ cd src
$ mkdir build root
$ BUILD_STATIC_ONLY=y OBJDIR=build DESTDIR=root make install

To build both static libbpf.a and shared libbpf.so against a custom libelf dependency installed in /build/root/ and install them together with libbpf headers in a build directory /build/root/:

$ cd src
$ PKG_CONFIG_PATH=/build/root/lib64/pkgconfig DESTDIR=/build/root make install

Distributions

Distributions packaging libbpf from this mirror:

Benefits of packaging from the mirror over packaging from kernel sources:

  • Consistent versioning across distributions.
  • No ties to any specific kernel, transparent handling of older kernels. Libbpf is designed to be kernel-agnostic and work across multitude of kernel versions. It has built-in mechanisms to gracefully handle older kernels, that are missing some of the features, by working around or gracefully degrading functionality. Thus libbpf is not tied to a specific kernel version and can/should be packaged and versioned independently.
  • Continuous integration testing via TravisCI.
  • Static code analysis via LGTM and Coverity.

Package dependencies of libbpf, package names may vary across distros:

  • zlib
  • libelf

License

This work is dual-licensed under BSD 2-clause license and GNU LGPL v2.1 license. You can choose between one of them if you use this work.

SPDX-License-Identifier: BSD-2-Clause OR LGPL-2.1