* [PATCH v4 0/2] docs/zh_CN: move and update sparse
@ 2021-11-22 7:40 Yanteng Si
2021-11-22 7:40 ` [PATCH v4 1/2] docs/zh_CN: move sparse into dev-tools Yanteng Si
2021-11-22 7:40 ` [PATCH v4 2/2] docs/zh_CN: update sparse translation Yanteng Si
0 siblings, 2 replies; 3+ messages in thread
From: Yanteng Si @ 2021-11-22 7:40 UTC (permalink / raw)
To: corbet, alexs, bobwxc, seakeel
Cc: Yanteng Si, chenhuacai, jiaxun.yang, linux-doc, realpuyuwang,
siyanteng01
v4:
* Testing on the next-20211118.
v3:
* Pick Alex's Reviewed-by tag.
* Replace *是* with **是** at the suggestion of Leo Li.
* Fix a build warning.
v2:
At the suggestion of Leo Li:
* typo fix.
* recovert `` `` to “ ”.
v1:
The Chinese sparse documentation is too old, so let's update it to
the latest version and move it to ../zh_CN/dev-tools/.
Yanteng Si (2):
docs/zh_CN: move sparse into dev-tools
docs/zh_CN: update sparse translation
.../translations/zh_CN/dev-tools/index.rst | 2 +-
.../{sparse.txt => dev-tools/sparse.rst} | 67 ++++++++++++-------
2 files changed, 43 insertions(+), 26 deletions(-)
rename Documentation/translations/zh_CN/{sparse.txt => dev-tools/sparse.rst} (58%)
--
2.27.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v4 1/2] docs/zh_CN: move sparse into dev-tools
2021-11-22 7:40 [PATCH v4 0/2] docs/zh_CN: move and update sparse Yanteng Si
@ 2021-11-22 7:40 ` Yanteng Si
2021-11-22 7:40 ` [PATCH v4 2/2] docs/zh_CN: update sparse translation Yanteng Si
1 sibling, 0 replies; 3+ messages in thread
From: Yanteng Si @ 2021-11-22 7:40 UTC (permalink / raw)
To: corbet, alexs, bobwxc, seakeel
Cc: Yanteng Si, chenhuacai, jiaxun.yang, linux-doc, realpuyuwang,
Yanteng Si
From: Yanteng Si <siyanteng01@gmail.com>
../zh_CN/saprse.txt is alone at here, let's move it to ../zh_CN/dev-tools/sparse.rst.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
---
Documentation/translations/zh_CN/dev-tools/index.rst | 2 +-
.../translations/zh_CN/{sparse.txt => dev-tools/sparse.rst} | 0
2 files changed, 1 insertion(+), 1 deletion(-)
rename Documentation/translations/zh_CN/{sparse.txt => dev-tools/sparse.rst} (100%)
diff --git a/Documentation/translations/zh_CN/dev-tools/index.rst b/Documentation/translations/zh_CN/dev-tools/index.rst
index 0f770b8664e9..77a8c44cdf49 100644
--- a/Documentation/translations/zh_CN/dev-tools/index.rst
+++ b/Documentation/translations/zh_CN/dev-tools/index.rst
@@ -22,13 +22,13 @@ Documentation/translations/zh_CN/dev-tools/testing-overview.rst
:maxdepth: 2
testing-overview
+ sparse
gcov
kasan
Todolist:
- coccinelle
- - sparse
- kcov
- ubsan
- kmemleak
diff --git a/Documentation/translations/zh_CN/sparse.txt b/Documentation/translations/zh_CN/dev-tools/sparse.rst
similarity index 100%
rename from Documentation/translations/zh_CN/sparse.txt
rename to Documentation/translations/zh_CN/dev-tools/sparse.rst
--
2.27.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v4 2/2] docs/zh_CN: update sparse translation
2021-11-22 7:40 [PATCH v4 0/2] docs/zh_CN: move and update sparse Yanteng Si
2021-11-22 7:40 ` [PATCH v4 1/2] docs/zh_CN: move sparse into dev-tools Yanteng Si
@ 2021-11-22 7:40 ` Yanteng Si
1 sibling, 0 replies; 3+ messages in thread
From: Yanteng Si @ 2021-11-22 7:40 UTC (permalink / raw)
To: corbet, alexs, bobwxc, seakeel
Cc: Yanteng Si, chenhuacai, jiaxun.yang, linux-doc, realpuyuwang,
Yanteng Si
From: Yanteng Si <siyanteng01@gmail.com>
Sparse documents are too outdated,let's update sparse.rst to the latest version.
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
---
.../translations/zh_CN/dev-tools/sparse.rst | 67 ++++++++++++-------
1 file changed, 42 insertions(+), 25 deletions(-)
diff --git a/Documentation/translations/zh_CN/dev-tools/sparse.rst b/Documentation/translations/zh_CN/dev-tools/sparse.rst
index 0f444b83d639..556282437aad 100644
--- a/Documentation/translations/zh_CN/dev-tools/sparse.rst
+++ b/Documentation/translations/zh_CN/dev-tools/sparse.rst
@@ -1,34 +1,34 @@
-Chinese translated version of Documentation/dev-tools/sparse.rst
+Copyright 2004 Linus Torvalds
+Copyright 2004 Pavel Machek <pavel@ucw.cz>
+Copyright 2006 Bob Copeland <me@bobcopeland.com>
-If you have any comment or update to the content, please contact the
-original document maintainer directly. However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help. Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
+.. include:: ../disclaimer-zh_CN.rst
-Chinese maintainer: Li Yang <leoyang.li@nxp.com>
----------------------------------------------------------------------
-Documentation/dev-tools/sparse.rst 的中文翻译
+:Original: Documentation/dev-tools/sparse.rst
-如果想评论或更新本文的内容,请直接联系原文档的维护者。如果你使用英文
-交流有困难的话,也可以向中文版维护者求助。如果本翻译更新不及时或者翻
-译存在问题,请联系中文版维护者。
+:翻译:
-中文版维护者: 李阳 Li Yang <leoyang.li@nxp.com>
-中文版翻译者: 李阳 Li Yang <leoyang.li@nxp.com>
+ Li Yang <leoyang.li@nxp.com>
+:校译:
-以下为正文
----------------------------------------------------------------------
+ 司延腾 Yanteng Si <siyanteng@loongson.cn>
-Copyright 2004 Linus Torvalds
-Copyright 2004 Pavel Machek <pavel@ucw.cz>
-Copyright 2006 Bob Copeland <me@bobcopeland.com>
+.. _cn_sparse:
+
+Sparse
+======
+
+Sparse是一个C程序的语义检查器;它可以用来发现内核代码的一些潜在问题。 关
+于sparse的概述,请参见https://lwn.net/Articles/689907/;本文档包含
+一些针对内核的sparse信息。
+关于sparse的更多信息,主要是关于它的内部结构,可以在它的官方网页上找到:
+https://sparse.docs.kernel.org。
使用 sparse 工具做类型检查
~~~~~~~~~~~~~~~~~~~~~~~~~~
-"__bitwise" 是一种类型属性,所以你应该这样使用它:
+"__bitwise" 是一种类型属性,所以你应该这样使用它::
typedef int __bitwise pm_request_t;
@@ -48,7 +48,7 @@ Copyright 2006 Bob Copeland <me@bobcopeland.com>
坦白来说,你并不需要使用枚举类型。上面那些实际都可以浓缩成一个特殊的"int
__bitwise"类型。
-所以更简单的办法只要这样做:
+所以更简单的办法只要这样做::
typedef int __bitwise pm_request_t;
@@ -60,25 +60,42 @@ __bitwise"类型。
一个小提醒:常数整数"0"是特殊的。你可以直接把常数零当作位方式整数使用而
不用担心 sparse 会抱怨。这是因为"bitwise"(恰如其名)是用来确保不同位方
式类型不会被弄混(小尾模式,大尾模式,cpu尾模式,或者其他),对他们来说
-常数"0"确实是特殊的。
+常数"0"确实 **是** 特殊的。
+
+使用sparse进行锁检查
+--------------------
+
+下面的宏对于 gcc 来说是未定义的,在 sparse 运行时定义,以使用sparse的“上下文”
+跟踪功能,应用于锁定。 这些注释告诉 sparse 什么时候有锁,以及注释的函数的进入和
+退出。
+
+__must_hold - 指定的锁在函数进入和退出时被持有。
+
+__acquires - 指定的锁在函数退出时被持有,但在进入时不被持有。
+
+__releases - 指定的锁在函数进入时被持有,但在退出时不被持有。
+
+如果函数在不持有锁的情况下进入和退出,在函数内部以平衡的方式获取和释放锁,则不
+需要注释。
+上面的三个注释是针对sparse否则会报告上下文不平衡的情况。
获取 sparse 工具
~~~~~~~~~~~~~~~~
你可以从 Sparse 的主页获取最新的发布版本:
- http://www.kernel.org/pub/linux/kernel/people/josh/sparse/
+ https://www.kernel.org/pub/software/devel/sparse/dist/
或者,你也可以使用 git 克隆最新的 sparse 开发版本:
- git://git.kernel.org/pub/scm/linux/kernel/git/josh/sparse.git
+ git://git.kernel.org/pub/scm/devel/sparse/sparse.git
一旦你下载了源码,只要以普通用户身份运行:
make
make install
-它将会被自动安装到你的 ~/bin 目录下。
+如果是标准的用户,它将会被自动安装到你的~/bin目录下。
使用 sparse 工具
~~~~~~~~~~~~~~~~
--
2.27.0
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