Current libbpf Makefile does not contain the help command, which is inconvenient to use. A help command is provided to list the commands supported by libbpf make and the functions of the commands. Signed-off-by: Xin Liu <liuxin350@xxxxxxxxxx> --- tools/lib/bpf/Makefile | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index 4c904ef0b47e..c86e05df4711 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -286,3 +286,37 @@ tags: # Delete partially updated (corrupted) files on error .DELETE_ON_ERROR: + +help: + @echo 'Default targets:' + @echo ' all - Run all_cmd' + @echo ' all_cmd - Build library and pkgconfig, check abi and version info' + @echo '' + @echo 'Cleaning targets:' + @echo ' clean - Remove all generated files' + @echo '' + @echo 'Build targets:' + @echo ' libbpf.so - Build the dynamic library' + @echo ' libbpf.a - Build the static library' + @echo ' libbpf.pc - Build the pkgconfig file' + @echo '' + @echo 'Install targets:' + @echo ' install - Install all headers, library and pkgconfig file to' + @echo ' DESTDIR(default: /) with prefix(default: /usr/local)' + @echo ' install_lib - Install only library' + @echo ' install_headers - Install only headers' + @echo ' install_pkgconfig - Install only pkgconfig file' + @echo '' + @echo 'Other generic targets:' + @echo ' cscope - Generate cscope index' + @echo ' tags - Generate tags file for editors' + @echo ' check - Check abi and version info' + @echo ' check_abi - Check versioned symbols' + @echo ' check_version - Check whether the libbpf version defined in libbpf_version.h' + @echo ' is the same as that defined in libbpf.map' + @echo '' + @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' + @echo ' make DESTDIR=/root [install targets] use DESTDIR for installing' + @echo ' into a different root directory' + @echo ' make prefix=/path [install targets] use prefix for installing' + @echo ' into a user defined prefix path' -- 2.33.0
