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Message-ID: <20221129074235.116969-1-liuxin350@huawei.com>
Date: Tue, 29 Nov 2022 15:42:35 +0800
From: Xin Liu <liuxin350@...wei.com>
To: <andrii@...nel.org>, <ast@...nel.org>, <daniel@...earbox.net>,
<martin.lau@...ux.dev>, <song@...nel.org>, <yhs@...com>,
<john.fastabend@...il.com>, <kpsingh@...nel.org>, <sdf@...gle.com>,
<haoluo@...gle.com>, <jolsa@...nel.org>
CC: <bpf@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<yanan@...wei.com>, <wuchangye@...wei.com>,
<xiesongyang@...wei.com>, <kongweibin2@...wei.com>,
<liuxin350@...wei.com>, <zhangmingyi5@...wei.com>
Subject: [PATCH] Improved usability of the Makefile in libbpf
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@...wei.com>
---
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
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