bsphinx.addnodesdocument)}( rawsourcechildren]( translations LanguagesNode)}(hhh](h pending_xref)}(hhh]docutils.nodesTextEnglish}parenthsba attributes}(ids]classes]names]dupnames]backrefs] refdomainstdreftypedoc reftarget/process/programming-languagemodnameN classnameN refexplicitutagnamehhh ubh)}(hhh]hChinese (Traditional)}hh2sbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget0/translations/zh_TW/process/programming-languagemodnameN classnameN refexplicituh1hhh ubh)}(hhh]hItalian}hhFsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget0/translations/it_IT/process/programming-languagemodnameN classnameN refexplicituh1hhh ubh)}(hhh]hJapanese}hhZsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget0/translations/ja_JP/process/programming-languagemodnameN classnameN refexplicituh1hhh ubh)}(hhh]hKorean}hhnsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget0/translations/ko_KR/process/programming-languagemodnameN classnameN refexplicituh1hhh ubh)}(hhh]hPortuguese (Brazilian)}hhsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget0/translations/pt_BR/process/programming-languagemodnameN classnameN refexplicituh1hhh ubh)}(hhh]hSpanish}hhsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget0/translations/sp_SP/process/programming-languagemodnameN classnameN refexplicituh1hhh ubeh}(h]h ]h"]h$]h&]current_languageChinese (Simplified)uh1h hh _documenthsourceNlineNubhnote)}(hX{此文件的目的是为让中文读者更容易阅读和理解,而不是作为一个分支。 因此, 如果您对此文件有任何意见或更新,请先尝试更新原始英文文件。 如果您发现本文档与原始文件有任何不同或者有翻译问题,请发建议或者补丁给 该文件的译者,或者请求中文文档维护者和审阅者的帮助。h]h paragraph)}(hX{此文件的目的是为让中文读者更容易阅读和理解,而不是作为一个分支。 因此, 如果您对此文件有任何意见或更新,请先尝试更新原始英文文件。 如果您发现本文档与原始文件有任何不同或者有翻译问题,请发建议或者补丁给 该文件的译者,或者请求中文文档维护者和审阅者的帮助。h]hX{此文件的目的是为让中文读者更容易阅读和理解,而不是作为一个分支。 因此, 如果您对此文件有任何意见或更新,请先尝试更新原始英文文件。 如果您发现本文档与原始文件有任何不同或者有翻译问题,请发建议或者补丁给 该文件的译者,或者请求中文文档维护者和审阅者的帮助。}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hh5Documentation/translations/zh_CN/disclaimer-zh_CN.rsthKhhubah}(h]h ]h"]h$]h&]uh1hhhhhhhhNubh field_list)}(hhh](hfield)}(hhh](h 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]h"]h$]h&]uh1hhhhKhhhhubeh}(h]h ]h"]h$]h&]uh1hhhhhhhhKubhsection)}(hhh](htitle)}(h程序设计语言h]h程序设计语言}(hj~hhhNhNubah}(h]h ]h"]h$]h&]uh1j|hjyhhhhhKubh)}(hXQ内核是用 C 编程语言编写的 [zh_cn_c-language]_。更准确地说,内核通常使用 ``gcc`` [zh_cn_gcc]_ 编译, 并且使用 ``-std=gnu11`` [zh_cn_gcc-c-dialect-options]_:这是 ISO C11 的 GNU 方言。 ``clang`` [zh_cn_clang]_ 也得到了支持,详见文档: :ref:`使用 Clang/LLVM 构建 Linux `。h](h%内核是用 C 编程语言编写的 }(hjhhhNhNubh)}(hzh_cn_c-languageh]h)}(hjh]h[zh_cn_c-language]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id2ah ]h"]h$]h&] refdomaincitationreftyperef reftargetjrefwarnsupport_smartquotesuh1hhhhK hjhhubh(。更准确地说,内核通常使用 }(hjhhhNhNubhliteral)}(h``gcc``h]hgcc}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }(hjhhhNhNubh)}(h zh_cn_gcch]h)}(hjh]h [zh_cn_gcc]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id3ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhK hjhhubh 编译, 并且使用 }(hjhhhNhNubj)}(h``-std=gnu11``h]h -std=gnu11}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }hjsbh)}(hzh_cn_gcc-c-dialect-optionsh]h)}(hjh]h[zh_cn_gcc-c-dialect-options]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id4ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhK hjhhubh$:这是 ISO C11 的 GNU 方言。 }(hjhhhNhNubj)}(h ``clang``h]hclang}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh }hjsbh)}(h zh_cn_clangh]h)}(hj3h]h [zh_cn_clang]}(hj5hhhNhNubah}(h]h ]h"]h$]h&]uh1hhj1ubah}(h]id5ah ]h"]h$]h&] refdomainjreftypej reftargetj3refwarnsupport_smartquotesuh1hhhhK hjhhubh& 也得到了支持,详见文档: }(hjhhhNhNubh)}(h3:ref:`使用 Clang/LLVM 构建 Linux `h]h)}(hjTh]h使用 Clang/LLVM 构建 Linux}(hjVhhhNhNubah}(h]h ](jstdstd-refeh"]h$]h&]uh1hhjRubah}(h]h ]h"]h$]h&]refdocj refdomainj`reftyperef refexplicitrefwarnj kbuild_llvmuh1hhhhK hjubh。}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhK hjyhhubh)}(hu这种方言包含对 C 语言的许多扩展 [zh_cn_gnu-extensions]_,当然,它们许多都在内核中使用。h](h.这种方言包含对 C 语言的许多扩展 }(hj|hhhNhNubh)}(hzh_cn_gnu-extensionsh]h)}(hjh]h[zh_cn_gnu-extensions]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id6ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhKhj|hhubh0,当然,它们许多都在内核中使用。}(hj|hhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKhjyhhubjx)}(hhh](j})}(h属性h]h属性}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1j|hjhhhhhKubh)}(hX 在整个内核中使用的一个常见扩展是属性(attributes) [zh_cn_gcc-attribute-syntax]_。 属性允许将实现定义的语义引入语言实体(如变量、函数或类型),而无需对语言进行 重大的语法更改(例如添加新关键字) [zh_cn_n2049]_。h](hG在整个内核中使用的一个常见扩展是属性(attributes) }(hjhhhNhNubh)}(hzh_cn_gcc-attribute-syntaxh]h)}(hjh]h[zh_cn_gcc-attribute-syntax]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id8ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhKhjhhubh。 属性允许将实现定义的语义引入语言实体(如变量、函数或类型),而无需对语言进行 重大的语法更改(例如添加新关键字) }(hjhhhNhNubh)}(h zh_cn_n2049h]h)}(hjh]h [zh_cn_n2049]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id9ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhKhjhhubh。}(hjhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKhjhhubh)}(h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)h]h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)}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhjhhubh)}(h内核定义了伪关键字(例如, ``pure`` ),而不是直接使用GNU属性语法(例如, ``__attribute__((__pure__))`` ),以检测可以使用哪些关键字和/或缩短代码, 具体 请参阅 ``include/linux/compiler_attributes.h``h](h(内核定义了伪关键字(例如, }(hjhhhNhNubj)}(h``pure``h]hpure}(hj"hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubh6 ),而不是直接使用GNU属性语法(例如, }(hjhhhNhNubj)}(h``__attribute__((__pure__))``h]h__attribute__((__pure__))}(hj4hhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubhQ ),以检测可以使用哪些关键字和/或缩短代码, 具体 请参阅 }(hjhhhNhNubj)}(h'``include/linux/compiler_attributes.h``h]h#include/linux/compiler_attributes.h}(hjFhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1hhhhKhjhhubeh}(h]id7ah ]h"]属性ah$]h&]uh1jwhjyhhhhhKubjx)}(hhh](j})}(hRusth]hRust}(hjehhhNhNubah}(h]h ]h"]h$]h&]uh1j|hjbhhhhhKubh)}(hX]内核对 Rust 编程语言 [zh_cn_rust-language]_ 的支持是实验性的,并且可以通过配置选项 ``CONFIG_RUST`` 来启用。Rust 代码使用 ``rustc`` [zh_cn_rustc]_ 编译器在 ``--edition=2021`` [zh_cn_rust-editions]_ 选项下进行编译。版本(Editions)是一种 在语言中引入非后向兼容的小型变更的方式。h](h内核对 Rust 编程语言 }(hjshhhNhNubh)}(hzh_cn_rust-languageh]h)}(hj}h]h[zh_cn_rust-language]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhj{ubah}(h]id10ah ]h"]h$]h&] refdomainjreftypej reftargetj}refwarnsupport_smartquotesuh1hhhhK!hjshhubh; 的支持是实验性的,并且可以通过配置选项 }(hjshhhNhNubj)}(h``CONFIG_RUST``h]h CONFIG_RUST}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjsubh 来启用。Rust 代码使用 }(hjshhhNhNubj)}(h ``rustc``h]hrustc}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjsubh }(hjshhhNhNubh)}(h zh_cn_rustch]h)}(hjh]h [zh_cn_rustc]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id11ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhK!hjshhubh 编译器在 }(hjshhhNhNubj)}(h``--edition=2021``h]h--edition=2021}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1jhjsubh }hjssbh)}(hzh_cn_rust-editionsh]h)}(hjh]h[zh_cn_rust-editions]}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjubah}(h]id12ah ]h"]h$]h&] refdomainjreftypej reftargetjrefwarnsupport_smartquotesuh1hhhhK!hjshhubhs 选项下进行编译。版本(Editions)是一种 在语言中引入非后向兼容的小型变更的方式。}(hjshhhNhNubeh}(h]h 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