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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
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Adding upstream version 6.1.76.upstream/6.1.76upstream
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+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: :ref:`Documentation/process/programming-language.rst <programming_language>`
+:Translator: Alex Shi <alex.shi@linux.alibaba.com>
+
+.. _cn_programming_language:
+
+程序设计语言
+============
+
+内核是用C语言 :ref:`c-language <cn_c-language>` 编写的。更准确地说,内核通常是用 :ref:`gcc <cn_gcc>`
+在 ``-std=gnu11`` :ref:`gcc-c-dialect-options <cn_gcc-c-dialect-options>` 下编译的:ISO C11的 GNU 方言
+
+这种方言包含对语言 :ref:`gnu-extensions <cn_gnu-extensions>` 的许多扩展,当然,它们许多都在内核中使用。
+
+对于一些体系结构,有一些使用 :ref:`clang <cn_clang>` 和 :ref:`icc <cn_icc>` 编译内核
+的支持,尽管在编写此文档时还没有完成,仍需要第三方补丁。
+
+属性
+----
+
+在整个内核中使用的一个常见扩展是属性(attributes) :ref:`gcc-attribute-syntax <cn_gcc-attribute-syntax>`
+属性允许将实现定义的语义引入语言实体(如变量、函数或类型),而无需对语言进行
+重大的语法更改(例如添加新关键字) :ref:`n2049 <cn_n2049>`
+
+在某些情况下,属性是可选的(即不支持这些属性的编译器仍然应该生成正确的代码,
+即使其速度较慢或执行的编译时检查/诊断次数不够)
+
+内核定义了伪关键字(例如, ``pure`` ),而不是直接使用GNU属性语法(例如,
+``__attribute__((__pure__))`` ),以检测可以使用哪些关键字和/或缩短代码, 具体
+请参阅 ``include/linux/compiler_attributes.h``
+
+.. _cn_c-language:
+
+c-language
+ http://www.open-std.org/jtc1/sc22/wg14/www/standards
+
+.. _cn_gcc:
+
+gcc
+ https://gcc.gnu.org
+
+.. _cn_clang:
+
+clang
+ https://clang.llvm.org
+
+.. _cn_icc:
+
+icc
+ https://software.intel.com/en-us/c-compilers
+
+.. _cn_gcc-c-dialect-options:
+
+c-dialect-options
+ https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html
+
+.. _cn_gnu-extensions:
+
+gnu-extensions
+ https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html
+
+.. _cn_gcc-attribute-syntax:
+
+gcc-attribute-syntax
+ https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html
+
+.. _cn_n2049:
+
+n2049
+ http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2049.pdf