commit | e60460f4e5137ab0c4aa4994fd30ada30ab31415 | [log] [tgz] |
---|---|---|
author | Andrii Nakryiko <andriin@fb.com> | Wed May 29 10:05:50 2019 -0700 |
committer | Andrii Nakryiko <andrii.nakryiko@gmail.com> | Wed May 29 10:19:20 2019 -0700 |
tree | 1cde175e8e46e3bebf7f099c0f44465b92052e67 | |
parent | 59a641543e181aadaedd400abc090f5b0db13edb [diff] |
linux/err.h: add PTR_ERR_OR_ZERO Add missing PTR_ERR_OR_ZERO implementation. Also add a bunch of generated files to .gitignore. Signed-off-by: Andrii Nakryiko <andriin@fb.com>
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.
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
To integrate libbpf into a project which uses Meson building system define [wrap-git]
file in subprojects
folder. To add libbpf dependency to the parent parent project, e.g. for libbpf_static_dep:
libbpf_obj = subproject('libbpf', required : true) libbpf_static_dep = libbpf_proj.get_variable('libbpf_static_dep')
To validate changes to meson.build
$ python3 meson.py build $ ninja -C build/
To install headers, libs and pkgconfig
$ cd build
$ ninja install