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Andrii Nakryiko f7af143516 libbpf: Add generic bpf_program__attach() 
Generalize BPF program attaching and allow libbpf to auto-detect type (and
extra parameters, where applicable) and attach supported BPF program types
based on program sections. Currently this is supported for:
- kprobe/kretprobe;
- tracepoint;
- raw tracepoint;
- tracing programs (typed raw TP/fentry/fexit).

More types support can be trivially added within this framework.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20191214014341.3442258-3-andriin@fb.com
2019-12-19 15:34:27 -08:00
include bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY 2019-11-25 16:55:44 -08:00
scripts coverity: explicitly use bash instead of sh 2019-11-05 13:28:13 -08:00
src libbpf: Add generic bpf_program__attach() 2019-12-19 15:34:27 -08:00
travis-ci libbpf: Add VMTEST to CI 2019-12-16 21:04:03 -08:00
.lgtm.yml lgtm: fix the extraction process 2019-10-28 15:15:47 -07:00
.travis.yml libbpf: fix Coverity scan CI 2019-12-17 16:46:57 -08:00
BPF-CHECKPOINT-COMMIT sync: latest libbpf changes from kernel 2019-12-12 14:40:26 -08:00
CHECKPOINT-COMMIT sync: latest libbpf changes from kernel 2019-12-12 14:40:26 -08:00
LICENSE license: add LICENSE with dual-license SPDX expression 2019-11-26 11:06:43 -08:00
LICENSE.BSD-2-Clause libbpf: add BSD-2-Clause and LGPL-2.1 licenses 2019-11-26 09:54:43 -08:00
LICENSE.LPGL-2.1 libbpf: add BSD-2-Clause and LGPL-2.1 licenses 2019-11-26 09:54:43 -08:00
README.md license: add license note to README 2019-11-26 11:02:19 -08:00

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

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