Fix up README's markdown formatting

After making Github recognize README.md as markdown text,
there are a bunch of formatting problems. They are fixed in this commit.

Singed-off-by: Andrii Nakryiko <andriin@fb.com>
This commit is contained in:
Andrii Nakryiko
2019-05-15 20:55:16 -07:00
committed by Andrii Nakryiko
parent 58d39f2af3
commit 3a41dddce2

View File

@@ -1,20 +1,19 @@
This is a mirror of bpf-next linux tree
(https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next)
bpf-next/tools/lib/bpf directory plus its supporting header files.
This is a mirror of [bpf-next linux tree](https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next)'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
- `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/tools/include/linux/*.h to make compilation
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](https://travis-ci.org/libbpf/libbpf.svg?branch=master)](https://travis-ci.org/libbpf/libbpf)
@@ -22,42 +21,50 @@ Build [![Build Status](https://travis-ci.org/libbpf/libbpf.svg?branch=master)](h
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.
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
```bash
$ 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
```bash
$ 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
```bash
$ 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.
`[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')
```
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/
```bash
$ python3 meson.py build
$ ninja -C build/
```
To install headers, libs and pkgconfig
cd build
ninja install
```bash
$ cd build
$ ninja install
```