{"id":629,"date":"2022-08-09T19:28:46","date_gmt":"2022-08-09T11:28:46","guid":{"rendered":"https:\/\/www.lcettsg.cn\/code\/?p=629"},"modified":"2024-04-21T12:05:27","modified_gmt":"2024-04-21T04:05:27","slug":"gcc%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/www.lcettsg.cn\/code\/?p=629","title":{"rendered":"gcc\u5b66\u4e60\u7b14\u8bb0"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">GCC\u7b80\u4ecb<\/h2>\n\n\n\n<p>GCC\u5373GNU C Compiler\uff0c\u65f6GNU\u63a8\u51fa\u7684\u529f\u80fd\u5f3a\u5927\u3001\u6027\u80fd\u4f18\u8d8a\u7684\u591a\u5e73\u53f0\u7f16\u8f91\u5668\uff0c\u662fGNU\u7684GCC\u7f16\u4ee3\u8868\u4f5c\u4e4b\u4e00\u3002GCC\u53ef\u4ee5\u5728\u591a\u79cd\u786c\u4ef6\u5e73\u53f0\u4e0a\u7f16\u8bd1\u51fa\u53ef\u6267\u884c\u7a0b\u5e8f\uff0c\u5176\u6267\u884c\u6548\u7387\u4e0e\u4e00\u822c\u7684\u7f16\u8bd1\u5668\u76f8\u6bd4\u5e73\u5747\u6548\u7387\u8981\u9ad820%~30%\u3002GCC\u7f16\u8bd1\u5668\u80fd\u5c06C\u3001C++\u8bed\u8a00\u6e90\u7a0b\u5e8f\u3001\u6c47\u7f16\u7a0b\u5e8f\u7f16\u8bd1\/\u8fde\u63a5\u6210\u53ef\u6267\u884c\u6587\u4ef6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u7f16\u8bd1\u8fc7\u7a0b<\/h2>\n\n\n\n<p>\u7a0b\u5e8f\u5728\u7f16\u8bd1\u65f6\uff0cGCC\u9700\u8981\u8c03\u7528\u9884\u5904\u7406\u7a0b\u5e8fcpp\uff0c\u7531\u5b83\u8d1f\u8d23\u5c55\u5f00\u5728\u6e90\u6587\u4ef6\u4e2d\u5b9a\u4e49\u7684\u5b8f\uff0c\u5e76\u5411\u5176\u4e2d\u63d2\u5165\u201c#include\u201d\u8bed\u53e5\u6240\u5305\u542b\u7684\u5185\u5bb9\u3002\u63a5\u7740GCC\u4f1a\u8c03\u7528ccl\u548cas\u5c06\u5904\u7406\u540e\u7684\u6e90\u4ee3\u7801\u7f16\u8bd1\u6210\u76ee\u6807\u4ee3\u7801\u3002\u6700\u540eGCC\u4f1a\u8c03\u7528\u94fe\u63a5\u7a0b\u5e8fld\u628a\u751f\u6210\u7684\u76ee\u6807\u4ee3\u7801\u94fe\u63a5\u6210\u4e00\u4e2a\u53ef\u6267\u884c\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\u4f7f\u7528GCC\u7f16\u8bd1\u7a0b\u5e8f\u65f6\uff0c\u7f16\u8bd1\u8fc7\u7a0b\u53ef\u7ec6\u5206\u4e3a\u56db\u4e2a\u9636\u6bb5\uff1a\u9884\u5904\u7406\u9636\u6bb5\u3001\u7f16\u8bd1\u3001\u6c47\u7f16\u3001\u94fe\u63a5\u3002<\/p>\n\n\n\n<p>\u9884\u5904\u7406\u9636\u6bb5(Pre-Processing)<\/p>\n\n\n\n<p>\u4f7f\u7528-E\u53c2\u6570\u53ef\u4ee5\u8ba9GCC\u5728\u9884\u5904\u7406\u7ed3\u675f\u540e\u505c\u6b62\u7f16\u8bd1\u8fc7\u7a0b<\/p>\n\n\n\n<p>gcc -E hello.c -o hello.i<\/p>\n\n\n\n<p>\u7f16\u8bd1(Compiling)<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\u662f\u4ee3\u7801\u7684\u7f16\u8bd1\u9636\u6bb5\uff0c\u5728\u8fd9\u4e2a\u9636\u6bb5\u4e2dGCC\u9996\u5148\u8981\u68c0\u67e5\u4ee3\u7801\u7684\u89c4\u8303\u6027\u3001\u662f\u5426\u6709\u8bed\u6cd5\u9519\u8bef\u7b49\uff0c\u4ee5\u786e\u5b9a\u4ee3\u7801\u7684\u5b9e\u9645\u8981\u4f5c\u7684\u5de5\u4f5c\u3002\u5728\u68c0\u67e5\u65e0\u8bef\u540eGCC\u628a\u4ee3\u7801\u7ffb\u8bd1\u6210\u6c47\u7f16\u8bed\u8a00\u3002\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u201c-S\u201d\u9009\u9879\u6765\u8fdb\u884c\u67e5\u770b\uff0c\u8be5\u9009\u9879\u53ea\u8fdb\u884c\u7f16\u8bd1\u800c\u4e0d\u8fdb\u884c\u6c47\u7f16\uff0c\u751f\u6210\u6c47\u7f16\u4ee3\u7801\u3002\u6c47\u7f16\u8bed\u8a00\u662f\u975e\u5e38\u6709\u7528\u7684\uff0c\u5b83\u4e3a\u4e0d\u540c\u9ad8\u7ea7\u8bed\u8a00\u4e0d\u540c\u7f16\u8bd1\u5668\u63d0\u4f9b\u4e86\u901a\u7528\u7684\u8bed\u8a00\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u6307\u4ee4gcc -S hello.i -o hello.s\u6267\u884c\u7f16\u8bd1\u8fc7\u7a0b\u3002\u6253\u5f00\u751f\u6210\u7684hello.s\u6587\u4ef6\u5982\u4e0b\u56fe\u6240\u793a<br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6587\u4ef6\u7c7b\u578b<\/h2>\n\n\n\n<p>GCC\u901a\u8fc7\u540e\u7f00\u6765\u533a\u522b\u8f93\u5165\u6587\u4ef6\u7684\u7c7b\u522b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>  .c\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1aC\u8bed\u8a00\u6e90\u4ee3\u7801\u6587\u4ef6\n\n  .a\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u662f\u7531\u76ee\u6807\u6587\u4ef6\u6784\u6210\u7684\u5e93\u6587\u4ef6\n\n  .C\u3001.cc\u6216.cxx\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1aC++\u6e90\u4ee3\u7801\u6587\u4ef6\n\n  .h\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u5934\u6587\u4ef6\n\n  .i\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u5df2\u7ecf\u9884\u5904\u7406\u8fc7\u7684C\u6e90\u4ee3\u7801\u6587\u4ef6\n\n  .ii\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u5df2\u7ecf\u9884\u5904\u7406\u7684C++\u6e90\u4ee3\u7801\u6587\u4ef6\n\n  .o\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u7f16\u8bd1\u540e\u7684\u76ee\u6807\u6587\u4ef6\n\n  .s\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u6c47\u7f16\u8bed\u8a00\u6e90\u4ee3\u7801\u6587\u4ef6\n\n  .S\u4e3a\u540e\u7f00\u7684\u6587\u4ef6\uff1a\u7ecf\u8fc7\u9884\u7f16\u8bd1\u7684\u6c47\u7f16\u8bed\u8a00\u6e90\u4ee3\u7801\u6587\u4ef6<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f16\u8bd1\u9009\u9879<\/h2>\n\n\n\n<p>GCC\u6700\u57fa\u672c\u7684\u7528\u6cd5\u662f\uff1a<\/p>\n\n\n\n<p>gcc [options] [filenames]<\/p>\n\n\n\n<p>options:\u7f16\u8bd1\u5668\u6240\u9700\u8981\u7684\u7f16\u8bd1\u9009\u9879\u3002<\/p>\n\n\n\n<p>filenames\uff1a\u8981\u7f16\u8bd1\u7684\u6587\u4ef6\u540d\u3002<\/p>\n\n\n\n<p>\u5173\u4e8e\u7f16\u8bd1\u9009\u9879\uff0cGCC\u7f16\u8bd1\u5668\u7684\u7f16\u8bd1\u9009\u9879\u5927\u7ea6\u6709100\u591a\u4e2a\uff0c\u5176\u4e2d\u591a\u6570\u9009\u9879\u57fa\u672c\u7528\u4e0d\u5230\uff0c\u8fd9\u91cc\u53ea\u4ecb\u7ecd\u5176\u4e2d\u6700\u57fa\u672c\u3001\u6700\u5e38\u7528\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n<p>-o output_filename:\u786e\u5b9a\u53ef\u6267\u884c\u6587\u4ef6\u7684\u540d\u79f0\u4e3aoutput_filename\u3002\u5982\u679c\u4e0d\u7ed9\u51fa\u8fd9\u4e2a\u9009\u9879\uff0cgcc\u5c31\u7ed9\u51fa\u9884\u8bbe\u7684\u53ef\u6267\u884c\u6587\u4ef6a.out\u3002<\/p>\n\n\n\n<p>-c\uff1a\u53ea\u7f16\u8bd1\uff0c\u4e0d\u94fe\u63a5\u6210\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u7f16\u8bd1\u5668\u53ea\u662f\u7531\u8f93\u5165\u7684.c\u7b49\u6e90\u4ee3\u7801\u6587\u4ef6\u751f\u6210.o\u4e3a\u540e\u7f00\u7684\u76ee\u6807\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>-g\uff1a\u4ea7\u751f\u8c03\u8bd5\u5de5\u5177\uff08GNU\u7684gdb\uff09\u6240\u5fc5\u8981\u7684\u7b26\u53f7\u4fe1\u606f\uff0c\u5982\u679c\u9700\u8981\u5bf9\u7f16\u8bd1\u7684\u7a0b\u5e8f\u8fdb\u884c\u8c03\u8bd5\u5c31\u5fc5\u987b\u52a0\u4e0a\u8fd9\u4e2a\u9009\u9879\u3002<\/p>\n\n\n\n<p>-O\uff1a\u5bf9\u7a0b\u5e8f\u8fdb\u884c\u4f18\u5316\u7f16\u8bd1\u3001\u94fe\u63a5\uff0c\u91c7\u7528\u8fd9\u4e2a\u9009\u9879\uff0c\u6574\u4e2a\u6e90\u4ee3\u7801\u4f1a\u5728\u7f16\u8bd1\u3001\u94fe\u63a5\u8fc7\u7a0b\u4e2d\u8fdb\u884c\u4f18\u5316\u5904\u7406\u3002\u8fd9\u6837\u4ea7\u751f\u7684\u53ef\u6267\u884c\u6587\u4ef6\u7684\u6267\u884c\u6548\u7387\u53ef\u4ee5\u63d0\u9ad8\uff0c\u4f46\u7f16\u8bd1\u3001\u94fe\u63a5\u7684\u901f\u5ea6\u5c31\u76f8\u5e94\u7684\u8981\u6162\u4e00\u4e9b\u3002<\/p>\n\n\n\n<p>-O2\uff1a\u6bd4-O\u66f4\u597d\u7684\u4f18\u5316\u7f16\u8bd1\u3001\u94fe\u63a5\uff0c\u5f53\u7136\u6574\u4e2a\u7f16\u8bd1\u3001\u94fe\u63a5\u8fc7\u7a0b\u4f1a\u975e\u5e38\u6162\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">-l dirname:\u5c06dirname\u6240\u6307\u51fa\u7684\u76ee\u5f55\u52a0\u5165\u5230\u7a0b\u5e8f\u5934\u6587\u4ef6\u76ee\u5f55\u5217\u8868\u4e2d\u3002<\/h2>\n\n\n\n<p>\u5982\u7a0b\u4e2d\uff1a<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<pre class=\"wp-block-preformatted\"><code>include\ninclude \"a.h\"<\/code><\/pre>\n<\/div>\n\n\n\n<p>\u5bf9\u4e8e&lt;&gt;\uff0c\u9884\u5904\u7406\u7a0b\u5e8fcpp\u5728\u7cfb\u7edf\u9884\u8bbe\u7684\u5934\u6587\u4ef6\u76ee\u5f55\uff08\/usr\/include\uff09\u4e2d\u641c\u7d22\u76f8\u5e94\u7684\u5934\u6587\u4ef6\uff0cer<\/p>\n\n\n\n<p>\u800c\u5bf9\u4e8e\u201d\u201c\uff0ccpp\u5728\u5f53\u524d\u76ee\u5f55\u4e2d\u641c\u7d22\u5934\u6587\u4ef6\uff0c\u8fd9\u4e2a\u9009\u9879\u662f\u544a\u8bc9cpp\uff0c\u5982\u679c\u5f53\u524d\u76ee\u5f55\u4e2d\u6ca1\u627e\u5230\u9700\u8981\u7684\u5934\u6587\u4ef6\uff0c\u5c31\u5230\u6307\u5b9a\u7684dirname\u76ee\u5f55\u4e2d\u5bfb\u627e\u3002<\/p>\n\n\n\n<p>\u4f8b\uff1agcc main.c -l \/home\/include -o main<\/p>\n\n\n\n<p>\u662f\u5148\u5230\u9884\u8bbe\u8def\u5f84\u4e2d\u5bfb\u627e\uff0c\u7136\u540e\u518d\u5230\/home\/include\u76ee\u5f55\u4e0b\u641c\u7d22\u5934\u6587\u4ef6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">-Ldirname\uff1a\u5c06dirdirname\u6240\u6307\u51fa\u7684\u76ee\u5f55\u52a0\u5165\u5230\u5e93\u6587\u4ef6\u7684\u76ee\u5f55\u5217\u8868\u4e2d\u3002<\/h2>\n\n\n\n<p>\u5728\u9ed8\u8ba4\u72b6\u6001\u4e0b\uff0c\u8fde\u63a5\u7a0b\u5e8fld\u5728\u7cfb\u7edf\u7684\u9884\u8bbe\u8def\u5f84\u4e2d\uff08\/usr\/lib\uff09\u5bfb\u627e\u6240\u9700\u8981\u7684\u5e93\u6587\u4ef6\uff0c\u8fd9\u4e2a\u9009\u9879\u544a\u8bc9\u8fde\u63a5\u7a0b\u5e8f\uff0c\u9996\u5148\u5230-L\u6307\u5b9a\u7684\u76ee\u5f55\u4e2d\u53bb\u5bfb\u627e\uff0c\u7136\u540e\u518d\u5230\u7cfb\u7edf\u9884\u8bbe\u7684\u8def\u5f84\u4e2d\u5bfb\u627e\u3002<\/p>\n\n\n\n<p>-lname(\u5c0f\u5199\u7684L)\uff1a\u518d\u8fde\u63a5\u65f6\uff0c\u88c5\u8f7d\u540d\u5b57\u4e3a&#8221;libname.a&#8221;\u7684\u51fd\u6570\u5e93\uff0c\u8be5\u51fd\u6570\u5e93\u4f4d\u4e8e\u7cfb\u7edf\u9884\u8bbe\u7684\u76ee\u5f55\u6216\u8005\u7531-L\u9009\u9879\u786e\u5b9a\u7684\u76ee\u5f55\u4e0b\u3002<\/p>\n\n\n\n<p>\u4f8b\uff1agcc main.c -L \/home\/lib -lmain -o main<\/p>\n\n\n\n<p>-static\uff1a\u9759\u6001\u94fe\u63a5\u5e93\u6587\u4ef6<\/p>\n\n\n\n<p>\u4f8b\uff1agcc -static hello.c -o hello<\/p>\n\n\n\n<p>-Wall\uff1a\u751f\u6210\u6240\u6709\u8b66\u544a\u4fe1\u606f <\/p>\n\n\n\n<p>-w\uff1a\u4e0d\u751f\u6210\u4efb\u4f55\u8b66\u544a\u4fe1\u606f warning<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">-DMACRO\uff1a\u5b9a\u4e49MACRO\u5b8f\uff0c\u7b49\u6548\u4e8e\u518d\u7a0b\u5e8f\u4e2d\u4f7f\u7528#define MACRO<\/h2>\n\n\n\n<p>D\u9009\u9879<br>\u2003\u2003D\u9009\u9879\u662f\u7528\u6765\u5728\u4f7f\u7528gcc\/g++\u7f16\u8bd1\u7684\u65f6\u5019\u5b9a\u4e49\u5b8f\u7684\u3002<\/p>\n\n\n\n<p>gcc -DDEBUG -D \u540e\u9762\u76f4\u63a5\u8ddf\u5b8f\u547d\uff0c\u76f8\u5f53\u4e8e\u5b9a\u4e49\u8fd9\u4e2a\u5b8f\uff0c\u9ed8\u8ba4\u8fd9\u4e2a\u5b8f\u7684\u5185\u5bb9\u662f1<br>gcc -DNAME=Peter -D \u540e\u9762\u8ddf key=value \u8868\u793a\u5b9a\u4e49key\u8fd9\u4e2a\u5b8f\uff0c\u5b83\u7684\u5185\u5bb9\u662fvalue<br>\u5e38\u7528\u573a\u666f<br>-DDEBUG \u5b9a\u4e49DEBUG\u5b8f\uff0c\u53ef\u80fd\u6587\u4ef6\u4e2d\u6709DEBUG\u5b8f\u90e8\u5206\u7684\u76f8\u5173\u4fe1\u606f\uff0c\u7528\u4e2aDDEBUG\u6765\u9009\u62e9\u5f00\u542f\u6216\u5173\u95edDEBUG<br>-Dprivate=public -Dprotected=public \u901a\u5e38\u7528\u4e8e\u6d4b\u8bd5\u73af\u5883\uff0c\u628aprivate \u4e0e protected\u5168\u66ff\u6362\u4e3apublic \u7684\u3002\u8fd9\u4e2a\u8fd8\u662f\u5f88\u5e38\u7528\u7684\uff0c\u6bd4\u5982\u6211\u4eec\u4f7f\u7528gtest\u53bb\u5355\u5143\u6d4b\u8bd5\uff0c\u76f4\u63a5\u6d4b\u8bd5\u76ee\u6807\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0c\u4f46\u662f\u53ef\u80fd\u76ee\u6807\u7c7b\u7684\u6210\u5458\u51fd\u6570\u4e3a\u4e86\u5c01\u88c5\u6027\uff0c\u5b83\u53ef\u80fd\u662fprotected\uff0c\u6240\u4ee5\u6211\u4eec\u4f7f\u7528\u8fd9\u4e2a\u5b8f\u628a\u5b83\u5168\u53d8\u6210public\u3002<\/p>\n\n\n\n<p>GCC \u7684<code>-U<\/code>\u9009\u9879\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u53d6\u6d88\u5b8f\u7684\u5b9a\u4e49\uff0c\u76f8\u5f53\u4e8e<code>#undef<\/code>\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-black-background-color has-text-color has-background\"><code>$ gcc -ULIMIT foo.c<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u793a\u4f8b\u4e2d\u7684<code>-U<\/code>\u53c2\u6570\uff0c\u53d6\u6d88\u4e86\u5b8f<code>LIMIT<\/code>\uff0c\u76f8\u5f53\u4e8e\u6e90\u6587\u4ef6\u91cc\u9762\u7684<code>#undef LIMIT<\/code>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">GCC \u7684<code>-std=<\/code>\u53c2\u6570\uff08standard \u7684\u7f29\u5199\uff09\u8fd8\u53ef\u4ee5\u6307\u5b9a\u6309\u7167\u54ea\u4e2a C \u8bed\u8a00\u7684\u6807\u51c6\u8fdb\u884c\u7f16\u8bd1\u3002<\/h2>\n\n\n\n<pre class=\"wp-block-code has-white-color has-black-background-color has-text-color has-background\"><code>$ gcc -std=c99 hello.c<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u547d\u4ee4\u6307\u5b9a\u6309\u7167 C99 \u6807\u51c6\u8fdb\u884c\u7f16\u8bd1\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f\uff0c<code>-std<\/code>\u540e\u9762\u9700\u8981\u7528<code>=<\/code>\u8fde\u63a5\u53c2\u6570\uff0c\u800c\u4e0d\u662f\u50cf\u4e0a\u9762\u7684<code>-o<\/code>\u4e00\u6837\u7528\u7a7a\u683c\uff0c\u5e76\u4e14<code>=<\/code>\u524d\u540e\u4e5f\u4e0d\u80fd\u6709\u591a\u4f59\u7684\u7a7a\u683c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">64\u4f4d\u7248\u4e0e32\u7248\uff1a<\/h2>\n\n\n\n<p>\u4e3a\u4e86\u9002\u5e94\u73b0\u5728\u8d8a\u6765\u8d8a\u6d41\u884c\u768464\u4f4d\u7cfb\u7edf\uff0c\u7ecf\u5e38\u9700\u8981\u5c06\u4ee3\u7801\u5206\u522b\u7f16\u8bd1\u4e3a32\u4f4d\u7248\u548c64\u4f4d\u7248\u3002\u5176\u6b21\uff0c\u9664\u4e86\u9700\u8981\u751f\u6210debug\u7248\u7528\u4e8e\u5f00\u53d1\u6d4b\u8bd5\u5916\uff0c\u8fd8\u9700\u8981\u751f\u6210release\u7248\u7528\u4e8e\u53d1\u5e03\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u5982\u4f55\u5229\u7528<a href=\"https:\/\/so.csdn.net\/so\/search?q=makefile&amp;spm=1001.2101.3001.7020\" target=\"_blank\" rel=\"noreferrer noopener\">makefile<\/a>\u6761\u4ef6\u7f16\u8bd1\u6765\u751f\u6210\u8fd9\u4e9b\u7248\u672c\uff0c\u800c\u4e14\u4e0d\u4ec5\u517c\u5bb9Linux\u4e0b\u7684GCC\uff0c\u8fd8\u652f\u6301MinGW\u3001TDM-GCC\u7b49Windows\u4e0b\u7684GCC\u7f16\u8bd1\u5668\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\"><a><\/a><br>\u4e00\u3001C\u7a0b\u5e8f\u4ee3\u7801<\/h1>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u6d4b\u8bd5\u6761\u4ef6\u7f16\u8bd1\u7684\u6548\u679c\uff0c\u4ee5\u4e0b\u9762\u8fd9\u4e2aC\u8bed\u8a00\u7a0b\u5e8f\u4e3a\u4f8b\uff08gcc64_make.c\uff09\u2014\u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">#include &lt;stdio.h&gt;\n#include &lt;assert.h&gt;\n\n\/\/ \u83b7\u53d6\u7a0b\u5e8f\u4f4d\u6570\uff08\u88ab\u7f16\u8bd1\u4e3a\u591a\u5c11\u4f4d\u7684\u4ee3\u7801\uff09\nint GetProgramBits()\n{\n    return sizeof(int*) * 8;\n}\n\nint main(int argc, char* argv[])\n{\n    printf(\"bits:\\t%d\\n\", GetProgramBits());\n    assert( argc&gt;1 );\n    return 0;\n}\nmain\u51fd\u6570\u4e2d\uff0c\u524d\u4e24\u6761\u8bed\u53e5\u7684\u542b\u4e49\u4e3a\u2014\u2014\n\u7b2c\u4e00\u6761\u8bed\u53e5\u7528\u4e8e\u663e\u793a\u5f53\u524d\u7a0b\u5e8f\u7684\u4f4d\u6570\u3002\u5982\u679c\u7f16\u8bd1\u4e3a32\u4f4d\u7248\uff0c\u5c06\u4f1a\u663e\u793a\u201cbits: 32\u201d\uff1b\u5982\u679c\u7f16\u8bd1\u4e3a64\u4f4d\u7248\uff0c\u5c06\u4f1a\u663e\u793a\u201cbits: 64\u201d\u3002\n\u7b2c\u4e8c\u6761\u8bed\u53e5\u662f\u4e00\u6761\u65ad\u8a00\uff0c\u9700\u8981argc\u53d8\u91cf\u5927\u4e8e1\u3002\u5982\u679c\u7f16\u8bd1\u4e3adebug\u7248\uff0c\u82e5\u8fd0\u884c\u65f6\u672a\u52a0\u547d\u4ee4\u53c2\u6570\uff0c\u8be5\u65ad\u8a00\u5931\u8d25\uff0c\u4e8e\u662f\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\u5e76\u7ec8\u6b62\u7a0b\u5e8f\uff1b\u5982\u679c\u7f16\u8bd1\u4e3arelease\u7248\uff0c\u6240\u6709\u65ad\u8a00\u88ab\u5c4f\u853d\uff0c\u4e0d\u4f1a\u6709\u9519\u8bef\u4fe1\u606f\u3002\n\n\n\u4e8c\u3001GCC\u547d\u4ee4\u884c\u53c2\u6570\n\u3000\u3000\u590d\u4e60\u4e00\u4e0bGCC\u547d\u4ee4\u884c\u53c2\u6570\uff0c\u770b\u770b\u5404\u4e2a\u7248\u672c\u7684\u533a\u522b\u2014\u2014\n32\u4f4d\u7248\uff1a\u52a0\u4e0a -m32 \u53c2\u6570\uff0c\u751f\u621032\u4f4d\u7684\u4ee3\u7801\u3002\n64\u4f4d\u7248\uff1a\u52a0\u4e0a -m64 \u53c2\u6570\uff0c\u751f\u621064\u4f4d\u7684\u4ee3\u7801\u3002\ndebug\u7248\uff1a\u52a0\u4e0a -g \u53c2\u6570\uff0c\u751f\u6210\u8c03\u8bd5\u4fe1\u606f\u3002\nrelease\u7248\uff1a\u52a0\u4e0a -static \u53c2\u6570\uff0c\u8fdb\u884c\u9759\u6001\u94fe\u63a5\uff0c\u4f7f\u7a0b\u5e8f\u4e0d\u518d\u4f9d\u8d56\u52a8\u6001\u5e93\u3002\u52a0\u4e0a -O3 \u53c2\u6570\uff0c\u8fdb\u884c\u6700\u5feb\u901f\u5ea6\u4f18\u5316\u3002\u52a0\u4e0a-DNDEBUG\u53c2\u6570\uff0c\u5b9a\u4e49NDEBUG\u5b8f\uff0c\u5c4f\u853d\u65ad\u8a00\u3002\n\n\u3000\u3000\u5f53\u6ca1\u6709-m32\u6216-m64\u53c2\u6570\u65f6\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\u4f1a\u751f\u6210\u8ddf\u64cd\u4f5c\u7cfb\u7edf\u4f4d\u6570\u4e00\u81f4\u7684\u4ee3\u7801\uff0c\u4f46\u67d0\u4e9b\u7f16\u8bd1\u5668\u5b58\u5728\u4f8b\u5916\uff0c\u4f8b\u5982\u2014\u2014\n32\u4f4dLinux\u4e0b\u7684GCC\uff0c\u9ed8\u8ba4\u662f\u7f16\u8bd1\u4e3a32\u4f4d\u4ee3\u7801\u3002\n64\u4f4dLinux\u4e0b\u7684GCC\uff0c\u9ed8\u8ba4\u662f\u7f16\u8bd1\u4e3a64\u4f4d\u4ee3\u7801\u3002\nWindow\u7cfb\u7edf\u4e0b\u7684MinGW\uff0c\u603b\u662f\u7f16\u8bd1\u4e3a32\u4f4d\u4ee3\u7801\u3002\u56e0\u4e3aMinGW\u53ea\u652f\u630132\u4f4d\u4ee3\u7801\u3002\nWindow\u7cfb\u7edf\u4e0b\u7684MinGW-w64\uff08\u4f8b\u5982\u5b89\u88c5\u4e86TDM-GCC\uff0c\u9009\u62e9MinGW-w64\uff09\uff0c\u9ed8\u8ba4\u662f\u7f16\u8bd1\u4e3a64\u4f4d\u4ee3\u7801\uff0c\u5305\u62ec\u572832\u4f4d\u7684Windows\u7cfb\u7edf\u4e0b\u3002\n<\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1622\" height=\"1307\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/09\/QQ\u622a\u56fe20220930013016.png\" alt=\"\" class=\"wp-image-995\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/09\/QQ\u622a\u56fe20220930013016.png 1622w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/09\/QQ\u622a\u56fe20220930013016-1000x806.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/09\/QQ\u622a\u56fe20220930013016-500x403.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/09\/QQ\u622a\u56fe20220930013016-768x619.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2022\/09\/QQ\u622a\u56fe20220930013016-1536x1238.png 1536w\" sizes=\"(max-width: 1622px) 100vw, 1622px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>GCC\u7b80\u4ecb GCC\u5373GNU C Compiler\uff0c\u65f6GNU\u63a8\u51fa\u7684\u529f\u80fd\u5f3a\u5927\u3001\u6027\u80fd\u4f18\u8d8a\u7684\u591a\u5e73\u53f0\u7f16\u8f91\u5668\uff0c\u662fGNU\u7684G [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-629","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/629"}],"collection":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=629"}],"version-history":[{"count":13,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/629\/revisions"}],"predecessor-version":[{"id":4261,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=\/wp\/v2\/posts\/629\/revisions\/4261"}],"wp:attachment":[{"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lcettsg.cn\/code\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}