{"id":961,"date":"2022-01-05T11:20:54","date_gmt":"2022-01-05T03:20:54","guid":{"rendered":"http:\/\/www.danios.com\/?p=961"},"modified":"2022-03-15T16:23:19","modified_gmt":"2022-03-15T08:23:19","slug":"linux%e4%b8%8b%e7%9a%84c%e8%af%ad%e8%a8%80%e5%bc%80%e5%8f%91-2","status":"publish","type":"post","link":"https:\/\/www.oceansource.cc\/?p=961","title":{"rendered":"linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1"},"content":{"rendered":"\n


\u6700\u8fd1\u770b\u5230\u4e86\u4e00\u4e2a\u6bd4\u8f83\u597d\u7684\u5199linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\u7684\u6587\u4ef6\uff0c\u8bb0\u5f55\u4e00\u4e0b\uff0c\u65b9\u4fbf\u4e4b\u540e\u67e5\u770b\uff0c\u6709\u5174\u8da3\u7684\u8bdd\u53ef\u4ee5\u67e5\u770b\u539f\u6587<\/p>\n\n\n\n

\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/weixin_40756041\/article\/details\/88112872<\/a><\/p>\n\n\n\n

\u5728\u5f88\u591a\u4eba\u7684\u773c\u91cc\uff0cC\u8bed\u8a00\u548clinux\u5e38\u5e38\u662f\u5206\u4e0d\u5f00\u7684\u3002\u8fd9\u5176\u4e2d\u7684\u539f\u56e0\u5f88\u591a\uff0c\u5176\u4e2d\u6700\u91cd\u8981\u7684\u4e00\u90e8\u5206\u6211\u8ba4\u4e3a\u662flinux\u672c\u8eab\u5c31\u662fC\u8bed\u8a00\u7684\u6770\u51fa\u4f5c\u54c1\u3002\u5f53\u7136\uff0clinux\u64cd\u4f5c\u7cfb\u7edf\u672c\u8eab\u5bf9C\u8bed\u8a00\u7684\u652f\u6301\u4e5f\u662f\u76f8\u5f53\u5230\u4f4d\u7684\u3002\u4f5c\u4e3a\u4e00\u4e2a\u771f\u6b63\u7684\u7a0b\u5e8f\u5458\u6765\u8bf4\uff0c\u5982\u679c\u6ca1\u6709\u5728linux\u4e0b\u9762\u7528C\u8bed\u8a00\u7f16\u5199\u8fc7\u5b8c\u6574\u7684\u7a0b\u5e8f\uff0c\u90a3\u4e48\u53ea\u80fd\u8bf4\u4ed6\u5bf9C\u8bed\u8a00\u672c\u8eab\u7684\u7406\u89e3\u8fd8\u76f8\u5173\u80a4\u6d45\uff0c\u5bf9\u7cfb\u7edf\u672c\u8eab\u7684\u8ba4\u8bc6\u4e5f\u4e0d\u591f\u5230\u4f4d\u3002\u4f5c\u4e3a\u7a0b\u5e8f\u5458\u6765\u8bf4\uff0clinux\u7cfb\u7edf\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5f88\u591a\u7406\u60f3\u7684\u73af\u5883\uff0c\u8fd9\u5176\u4e2d\u5305\u62ec\u4e86\u4e0b\u9762\u51e0\u4e2a\u65b9\u9762<\/p>\n\n\n\n

\uff081\uff09\u5b8c\u5584\u7684\u7f16\u8bd1\u73af\u5883\uff0c\u5305\u62ecgcc\u3001as\u3001ld\u7b49\u7f16\u8bd1\u3001\u94fe\u63a5\u5de5\u5177
\uff082\uff09\u5f3a\u5927\u7684\u8c03\u8bd5\u73af\u5883\uff0c\u4e3b\u8981\u662fgdb\u5de5\u5177
\uff083\uff09\u4e30\u5bcc\u7684\u81ea\u52a8\u7f16\u8bd1\u5de5\u5177\uff0c\u4e3b\u8981\u662fmake\u5de5\u5177
\uff084\uff09\u591a\u6837\u5316\u7684os\u9009\u62e9\uff0cubuntu\u3001redflag\u7b49\u7b49
\uff085\uff09\u6d69\u701a\u7684\u5f00\u6e90\u4ee3\u7801\u5e93<\/p>\n\n\n\n

\u5f53\u7136\uff0c\u4e0d\u7ba1\u6211\u600e\u4e48\u8bf4\uff0c\u6700\u7ec8\u670b\u53cb\u4eec\u8fd8\u662f\u5e94\u8be5\u81ea\u5df1\u52c7\u6562\u5730\u8de8\u51fa\u524d\u8fdb\u7684\u7b2c\u4e00\u6b65\u3002
\u5982\u679c\u8fd8\u6ca1\u6709\u8fc7Linux\u7f16\u7a0b\u7ecf\u9a8c\u7684\u670b\u53cb\u53ef\u4ee5\u9996\u5148\u5728\u81ea\u5df1\u7684pc\u4e0a\u9762\u5b89\u88c5\u4e00\u4e2a\u865a\u62df\u673a\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u5728shell\u4e0b\u9762\u7f16\u5199\u81ea\u5df1\u7684C\u8bed\u8a00\u4ee3\u7801\u4e86\u3002<\/p>\n\n\n

\n#include <stdio.h>\nint main()\n{\n    printf("hello!\\n");\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u7f16\u5199\u5b8c\u4e0a\u9762\u7684\u4ee3\u7801\u540e\uff0c\u4f60\u9700\u8981\u505a\u7684\u5c31\u662f\u4e24\u4e2a\u6b65\u9aa4\uff1a
1\u3001\u8f93\u5165 gcc hello.c -o hello\uff1b
2\u3001\u8f93\u5165.\/hello\u3002
\u5982\u679c\u4e00\u5207\u6b63\u5e38\u7684\u8bdd\uff0c\u6b64\u65f6\u4f60\u5e94\u8be5\u4f1a\u5728\u5c4f\u5e55\u4e0a\u770b\u5230\u4e00\u884chello\u7684\u6253\u5370\u3002\u5982\u679c\u4f60\u770b\u5230\u4e86\uff0c\u90a3\u4e48\u606d\u559c\u4f60\uff0c\u4f60\u5df2\u7ecf\u53ef\u4ee5\u5f00\u59cblinux\u7684c\u8bed\u8a00\u7f16\u7a0b\u4e4b\u65c5\u4e86\u3002<\/p>\n\n\n\n
\u5f53\u7136\uff0c\u6211\u4eec\u4e0d\u4f1a\u6ee1\u8db3\u4e8e\u8fd9\u4e48\u7b80\u5355\u7684\u6253\u5370\u529f\u80fd\u3002\u4e0b\u9762\u5c31\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u8fed\u4ee3\u51fd\u6570\uff0c<\/p>\n\n\n
\n#include <stdio.h>\nint iterate(int value)\n{\n    if(1 == value)\n        return 1;\n    return iterate(value - 1) + value;\n}\nint main()\n{\n    printf("%d\\n", iterate(10));\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u6b64\u65f6\uff0c\u540c\u6837\u6211\u4eec\u9700\u8981\u91cd\u590d\u4e0a\u9762\u7684\u6b65\u9aa4\uff1a
1\u3001\u8f93\u5165gcc hello.c -o hello\uff1b
2\u3001\u8f93\u5165.\/hello\u3002
\u5f53\u7136\u6b64\u65f6\u5982\u679c\u4e00\u5207OK\u7684\u8bdd\uff0c\u4f60\u5c31\u4f1a\u770b\u5230\u5c4f\u5e55\u4f1a\u670955\u8fd9\u4e2a\u6570\u7684\u8f93\u51fa\u3002\u672c\u67651\u523010\u7684\u6570\u636e\u4e4b\u548c\u5c31\u662f55\uff0c \u8fd9\u8bf4\u660e\u6211\u4eec\u7684\u7a0b\u5e8f\u662f\u6b63\u786e\u7684\u3002<\/p>\n\n\n\n
\u5f53\u7136\uff0c \u8fd8\u4f1a\u6709\u4e00\u4e9b\u670b\u53cb\u5bf9\u7a0b\u5e8f\u7684\u53cd\u6c47\u7f16\u611f\u5174\u8da3\uff0c\u90a3\u4e48\u4ed6\u9700\u8981\u4e24\u4e2a\u6b65\u9aa4\uff1a
1\u3001gcc hello.c -g -o hello\uff1b
2\u3001objdump -S -d .\/hello\u3002
\u4e4b\u6240\u4ee5\u5728gcc\u7f16\u8bd1\u7684\u65f6\u5019\u52a0\u4e0a-g\u662f\u4e3a\u4e86\u6dfb\u52a0\u8c03\u8bd5\u4fe1\u606f\uff0cobjdump\u4e2d\u7684-S\u9009\u9879\u662f\u4e3a\u4e86\u5728\u663e\u793a\u6c47\u7f16\u4ee3\u7801\u7684\u65f6\u5019\u540c\u65f6\u663e\u793a\u539f\u6765\u7684C\u8bed\u8a00\u6e90\u4ee3\u7801\u3002<\/p>\n\n\n
\nint iterate(int value)\n{\n    8048374: 55 push %ebp\n    8048375: 89 e5 mov %esp,%ebp\n    8048377: 83 ec 08 sub $0x8,%esp\n    if(1 == value)\n        804837a: 83 7d 08 01 cmpl $0x1,0x8(%ebp)\n        804837e: 75 09 jne 8048389 <iterate+0x15>\n        return 1;\n    8048380: c7 45 fc 01 00 00 00 movl $0x1,0xfffffffc(%ebp)\n    8048387: eb 16 jmp 804839f <iterate+0x2b>\n    return iterate(value -1) + value;\n    8048389: 8b 45 08 mov 0x8(%ebp),%eax\n    804838c: 83 e8 01 sub $0x1,%eax\n    804838f: 89 04 24 mov %eax,(%esp)\n    8048392: e8 dd ff ff ff call 8048374 <iterate>\n    8048397: 8b 55 08 mov 0x8(%ebp),%edx\n    804839a: 01 c2 add %eax,%edx\n    804839c: 89 55 fc mov %edx,0xfffffffc(%ebp)\n    804839f: 8b 45 fc mov 0xfffffffc(%ebp),%eax\n}\n80483a2: c9 leave\n80483a3: c3 ret\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08makefile\u7f16\u5199\uff09
\u5bf9\u4e8e\u7a0b\u5e8f\u8bbe\u8ba1\u5458\u6765\u8bf4\uff0cmakefile\u662f\u6211\u4eec\u7ed5\u4e0d\u8fc7\u53bb\u7684\u4e00\u4e2a\u574e\u3002\u53ef\u80fd\u5bf9\u4e8e\u4e60\u60efVisual C++\u7684\u7528\u6237\u6765\u8bf4\uff0c\u662f\u5426\u4f1a\u7f16\u5199makefile\u65e0\u6240\u8c13\u3002\u6bd5\u7adf\u5de5\u5177\u672c\u8eab\u5df2\u7ecf\u5e2e\u6211\u4eec\u505a\u597d\u4e86\u5168\u90e8\u7684\u7f16\u8bd1\u6d41\u7a0b\u3002\u4f46\u662f\u5728Linux\u4e0a\u9762\uff0c\u4e00\u5207\u53d8\u5f97\u4e0d\u4e00\u6837\u4e86\uff0c\u6ca1\u6709\u4eba\u4f1a\u4e3a\u4f60\u505a\u8fd9\u4e00\u5207\u3002\u7f16\u4ee3\u7801\u8981\u9760\u4f60\uff0c\u6d4b\u8bd5\u8981\u9760\u4f60\uff0c\u6700\u540e\u81ea\u52a8\u5316\u7f16\u8bd1\u8bbe\u8ba1\u4e5f\u8981\u9760\u4f60\u81ea\u5df1\u3002\u60f3\u60f3\u770b\uff0c\u5982\u679c\u4f60\u4e0b\u8f7d\u4e86\u4e00\u4e2a\u5f00\u6e90\u8f6f\u4ef6\uff0c\u5374\u56e0\u4e3a\u81ea\u52a8\u5316\u7f16\u8bd1\u5931\u8d25\uff0c\u90a3\u5c06\u4f1a\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u6253\u51fb\u4f60\u5b66\u4e60\u4ee3\u7801\u7684\u81ea\u4fe1\u5fc3\u4e86\u3002\u6240\u4ee5\uff0c\u6211\u7684\u7406\u89e3\u662f\u8fd9\u6837\u7684\u3002\u6211\u4eec\u8981\u5b66\u4f1a\u7f16\u5199makefile\uff0c\u81f3\u5c11\u4f1a\u7f16\u5199\u6700\u7b80\u5355\u7684makefile\u3002<\/p>\n\n\n\n
\u9996\u5148\u7f16\u5199add.c\u6587\u4ef6\uff0c<\/p>\n\n\n
\n#include "test.h"\n#include <stdio.h>\nint add(int a, int b)\n{\n    return a + b;\n}\nint main()\n{\n    printf(" 2 + 3 = %d\\n", add(2, 3));\n    printf(" 2 - 3 = %d\\n", sub(2, 3));\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u518d\u7f16\u5199sub.c\u6587\u4ef6\uff0c<\/p>\n\n\n
\n#include "test.h"\nint sub(int a, int b)\n{\n    return a - b;\n}\n<\/pre><\/div>\n\n\n
\u6700\u540e\u7f16\u5199test.h\u6587\u4ef6\uff0c<\/p>\n\n\n
\n#ifndef _TEST_H\n#define _TEST_H\nint add(int a, int b);\nint sub(int a, int b);\n#endif\n<\/pre><\/div>\n\n\n
\u90a3\u4e48\uff0c\u5c31\u662f\u8fd9\u4e09\u4e2a\u7b80\u5355\u7684\u6587\u4ef6\uff0c\u5e94\u8be5\u600e\u4e48\u7f16\u5199makefile\u5462\uff1f<\/p>\n\n\n\n
\u5982\u4e0b\u6240\u793a\u540d\u79f0\u4e3amakefile\uff0cgcc\u548crm\u524d\u9762\u4e0d\u80fd\u6709\u7a7a\u683c<\/p>\n\n\n\n
\u5177\u4f53\u7684\u5173\u4e8emakefile\u6587\u4ef6\u7684\u7684\u5185\u5bb9\uff0c\u683c\u5f0f\u53ca\u7f16\u5199\u65b9\u6cd5\u53ef\u4ee5\u53c2\u8003\u8fd9\u4f4d\u5927\u795e\u7684\u6587\u6863<\/a><\/p>\n\n\n
\ntest:add.o sub.o\n        gcc -o test add.o sub.o\nadd.o:add.c test.h\n        gcc -c add.c\nsub.o:sub.c test.h\n        gcc -c sub.c\nclean:\n        rm -rf test\n        rm -rf *.o\n\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08gdb\u8c03\u8bd5\uff09
\u7f16\u5199\u4ee3\u7801\u8fc7\u7a0b\u4e2d\u5c11\u4e0d\u4e86\u8c03\u8bd5\u3002\u5728windows\u4e0b\u9762\uff0c\u6211\u4eec\u6709visual studio\u5de5\u5177\u3002\u5728linux\u4e0b\u9762\u5462\uff0c\u5b9e\u9645\u4e0a\u9664\u4e86gdb\u5de5\u5177\u4e4b\u5916\uff0c\u4f60\u6ca1\u6709\u522b\u7684\u9009\u62e9\u3002\u90a3\u4e48\uff0c\u600e\u4e48\u7528gdb\u8fdb\u884c\u8c03\u8bd5\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u4e00\u6b65\u4e00\u6b65\u6765\u8bd5\u8bd5\u770b\u3002<\/p>\n\n\n
\n#include <stdio.h>\nint iterate(int value)\n{undefined\n    if(1 == value)\n        return 1;\n    return iterate(value - 1) + value;\n}\nint main()\n{undefined\n    printf("%d\\n", iterate(10));\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u65e2\u7136\u9700\u8981\u8c03\u8bd5\uff0c\u90a3\u4e48\u751f\u6210\u7684\u53ef\u6267\u884c\u6587\u4ef6\u5c31\u9700\u8981\u5305\u542b\u8c03\u8bd5\u7684\u4fe1\u606f\uff0c\u8fd9\u91cc\u5e94\u8be5\u600e\u4e48\u505a\u5462\uff1f\u5f88\u7b80\u5355\uff0c\u8f93\u5165 gcc test.c -g -o test\u3002\u8f93\u5165\u547d\u4ee4\u4e4b\u540e\uff0c\u5982\u679c\u6ca1\u6709\u7f16\u8bd1\u548c\u94fe\u63a5\u65b9\u9762\u7684\u9519\u8bef\uff0c\u4f60\u5c31\u53ef\u4ee5\u770b\u5230 \u53ef\u6267\u884c\u6587\u4ef6test\u4e86\u3002<\/p>\n\n\n\n
\u8c03\u8bd5\u7684\u6b65\u9aa4\u57fa\u672c\u5982\u4e0b\u6240\u793a\uff0c
\uff0801\uff09 \u9996\u5148\uff0c\u8f93\u5165gdb test
\uff0802\uff09 \u8fdb\u5165\u5230gdb\u7684\u8c03\u8bd5\u754c\u9762\u4e4b\u540e\uff0c\u8f93\u5165list\uff0c\u5373\u53ef\u770b\u5230test.c\u6e90\u6587\u4ef6
\uff0803\uff09 \u8bbe\u7f6e\u65ad\u70b9\uff0c\u8f93\u5165 b main
\uff0804\uff09 \u542f\u52a8test\u7a0b\u5e8f\uff0c\u8f93\u5165run
\uff0805\uff09 \u7a0b\u5e8f\u5728main\u5f00\u59cb\u7684\u5730\u65b9\u8bbe\u7f6e\u4e86\u65ad\u70b9\uff0c\u6240\u4ee5\u7a0b\u5e8f\u5728printf\u5904\u65ad\u4f4f
\uff0806\uff09 \u8fd9\u65f6\u5019\uff0c\u53ef\u4ee5\u5355\u6b65\u8ddf\u8e2a\u3002s\u5355\u6b65\u53ef\u4ee5\u8fdb\u5165\u5230\u51fd\u6570\uff0c\u800cn\u5355\u6b65\u5219\u8d8a\u8fc7\u51fd\u6570
\uff0807\uff09 \u5982\u679c\u5e0c\u671b\u4ece\u65ad\u70b9\u5904\u7ee7\u7eed\u8fd0\u884c\u7a0b\u5e8f\uff0c\u8f93\u5165c
\uff0808\uff09 \u5e0c\u671b\u7a0b\u5e8f\u8fd0\u884c\u5230\u51fd\u6570\u7ed3\u675f\uff0c\u8f93\u5165finish
\uff0809\uff09 \u67e5\u770b\u65ad\u70b9\u4fe1\u606f\uff0c\u8f93\u5165 info break
\uff0810\uff09 \u5982\u679c\u5e0c\u671b\u67e5\u770b\u5806\u6808\u4fe1\u606f\uff0c\u8f93\u5165bt
\uff0811\uff09 \u5e0c\u671b\u67e5\u770b\u5185\u5b58\uff0c\u8f93\u5165 x\/64xh + \u5185\u5b58\u5730\u5740
\uff0812\uff09 \u5220\u9664\u65ad\u70b9\uff0c\u5219\u8f93\u5165delete break + \u65ad\u70b9\u5e8f\u53f7
\uff0813\uff09 \u5e0c\u671b\u67e5\u770b\u51fd\u6570\u5c40\u90e8\u53d8\u91cf\u7684\u6570\u503c\uff0c\u53ef\u4ee5\u8f93\u5165print + \u53d8\u91cf\u540d
\uff0814\uff09\u5e0c\u671b\u4fee\u6539\u5185\u5b58\u503c\uff0c\u76f4\u63a5\u8f93\u5165 print + *\u5730\u5740 = \u6570\u503c
\uff0815\uff09 \u5e0c\u671b\u5b9e\u65f6\u6253\u5370\u53d8\u91cf\u7684\u6570\u503c\uff0c\u53ef\u4ee5\u8f93\u5165display + \u53d8\u91cf\u540d
\uff0816\uff09 \u67e5\u770b\u51fd\u6570\u7684\u6c47\u7f16\u4ee3\u7801\uff0c\u8f93\u5165 disassemble + \u51fd\u6570\u540d
\uff0817\uff09 \u9000\u51fa\u8c03\u8bd5\u8f93\u5165quit\u5373\u53ef<\/p>\n\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08AT&T \u6c47\u7f16\u8bed\u8a00\uff09
\u540c\u6837\u662fx86\u7684cpu\uff0c\u4f46\u662f\u5374\u53ef\u4ee5\u7528\u4e0d\u540c\u5f62\u5f0f\u7684\u6c47\u7f16\u8bed\u8a00\u6765\u8868\u793a\u3002
\u5728window\u4e0a\u9762\u6211\u4eec\u4f7f\u7528\u7684\u66f4\u591a\u662fintel\u683c\u5f0f\u7684\u6c47\u7f16\u8bed\u8a00\uff0c\u800c\u5728Linux\u7cfb\u7edf\u4e0a\u9762\u4f7f\u7528\u7684\u66f4\u591a\u7684\u5e38\u5e38\u662fAT&T\u683c\u5f0f\u7684\u6c47\u7f16\u8bed\u8a00\u3002\u90a3\u4ec0\u4e48\u662fAT&T\u683c\u5f0f\u7684\u6c47\u7f16\u4ee3\u7801\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u5199\u4e00\u4e2a\u8bd5\u8bd5\u770b\u3002<\/p>\n\n\n
\n.data\nmessage: .string "hello!\\n"\nlength = . - message\n.text\n.global _start\n_start:\nmovl $length, %edx\nmovl $message, %ecx\nmovl $1, %ebx\nmovl $4, %eax\nint $0x80\nmovl $0, %ebx\nmovl $1, %eax\nint $0x80\n08048074 <_start>:\n.text\n.global _start\n_start:\nmovl $length, %edx\n8048074: ba 08 00 00 00 mov $0x8,%edx\nmovl $message, %ecx\n8048079: b9 9c 90 04 08 mov $0x804909c,%ecx\nmovl $1, %ebx\n804807e: bb 01 00 00 00 mov $0x1,%ebx\nmovl $4, %eax\n8048083: b8 04 00 00 00 mov $0x4,%eax\nint $0x80\n8048088: cd 80 int $0x80\nmovl $0, %ebx\n804808a: bb 00 00 00 00 mov $0x0,%ebx\nmovl $1, %eax\n804808f: b8 01 00 00 00 mov $0x1,%eax\nint $0x80\n8048094: cd 80 int $0x80\nret\n8048096: c3 ret\n<\/pre><\/div>\n\n\n
\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u6c47\u7f16\u6587\u4ef6\uff0c\u6211\u4eec\u53ef\u4ee5\u5206\u4e24\u6b65\u8fdb\u884c\u7f16\u8bd1\u3002\u9996\u5148\uff0c\u8f93\u5165 as -gstabs -o hello.o hello.s, \u63a5\u7740\u8f93\u5165ld -o hello hello.o\u5373\u53ef\u3002\u4e3a\u4e86\u9a8c\u8bc1\u6267\u884c\u6587\u4ef6\u662f\u5426\u6b63\u786e\uff0c\u53ef\u4ee5\u8f93\u5165.\/hello\u9a8c\u8bc1\u4e00\u4e0b\u3002
\u5728as\u547d\u4ee4\u5f53\u4e2d\uff0c\u7531\u4e8e\u6211\u4eec\u4f7f\u7528\u4e86-gstabs\u9009\u9879\uff0c\u56e0\u6b64\u5728hello\u6267\u884c\u6587\u4ef6\u4e2d\u662f\u5305\u542b\u8c03\u8bd5\u4fe1\u606f\u7684\u3002\u6240\u4ee5\uff0c\u5982\u679c\u60f3\u5355\u6b65\u8c03\u8bd5\u7684\u670b\u53cb\u53ef\u4ee5\u8f93\u5165gdb hello\u8fdb\u884c\u8c03\u8bd5\u3002
\u90a3\u4e48\uff0chello\u6267\u884c\u6587\u4ef6\u53cd\u6c47\u7f16\u7684\u4ee3\u7801\u53c8\u662f\u4ec0\u4e48\u6837\u7684\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u8f93\u5165objdump -S -d hello\u67e5\u770b\u4e00\u4e0b\u3002<\/p>\n\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u9759\u6001\u5e93\uff09
\u5728\u6211\u4eec\u7f16\u5199\u8f6f\u4ef6\u7684\u8fc7\u7a0b\u5f53\u4e2d\uff0c\u5c11\u4e0d\u4e86\u9700\u8981\u4f7f\u7528\u522b\u4eba\u7684\u5e93\u51fd\u6570\u3002\u56e0\u4e3a\u5927\u5bb6\u77e5\u9053\uff0c\u8f6f\u4ef6\u662f\u4e00\u4e2a\u534f\u4f5c\u7684\u5de5\u7a0b\u3002\u4f5c\u4e3a\u4e2a\u4eba\u6765\u8bb2\uff0c\u4f60\u4e0d\u53ef\u80fd\u4e00\u4e2a\u4eba\u5b8c\u6210\u6240\u6709\u7684\u5de5\u4f5c\u3002\u53e6\u5916\uff0c\u7f51\u7edc\u4e0a\u4e00\u4e9b\u4f18\u79c0\u7684\u5f00\u6e90\u5e93\u5df2\u7ecf\u88ab\u4e1a\u5185\u5e7f\u6cdb\u63a5\u53d7\uff0c\u6211\u4eec\u4e5f\u6ca1\u6709\u5fc5\u8981\u628a\u65f6\u95f4\u6d6a\u8d39\u5728\u8fd9\u4e9b\u91cd\u590d\u7684\u5de5\u4f5c\u4e0a\u9762\u3002
\u65e2\u7136\u8bf4\u5230\u4e86\u5e93\u51fd\u6570\uff0c\u90a3\u4e48\u4e00\u822c\u6765\u8bf4\u5e93\u51fd\u6570\u5206\u4e3a\u4e24\u79cd\u65b9\u5f0f\uff1a\u9759\u6001\u5e93\u548c\u52a8\u6001\u5e93\u3002\u4e24\u8005\u7684\u533a\u522b\u5176\u5b9e\u5f88\u5c0f\uff0c\u9759\u6001\u5e93\u662f\u5fc5\u987b\u8981\u94fe\u63a5\u5230\u6267\u884c\u6587\u4ef6\u4e2d\u53bb\u7684\uff0c\u800c\u52a8\u6001\u5e93\u662f\u4e0d\u9700\u8981\u94fe\u63a5\u5230\u6700\u540e\u7684\u6267\u884c\u6587\u4ef6\u4e2d\u7684\u3002\u600e\u4e48\u7406\u89e3\u5462\uff1f\u4e5f\u5c31\u662f\u8bf4\uff0c\u5bf9\u4e8e\u6700\u540e\u7684\u6267\u884c\u6587\u4ef6\u800c\u8a00\uff0c\u4f60\u662f\u5426\u5220\u9664\u9759\u6001\u5e93\u65e0\u6240\u8c13\u3002\u4f46\u662f\uff0c\u4e00\u65e6\u4f60\u5220\u9664\u4e86\u52a8\u6001\u5e93\uff0c\u6700\u540e\u7684\u6267\u884c\u6587\u4ef6\u5c31\u73a9\u4e0d\u8f6c\u4e86\u3002
\u4eca\u5929\u6211\u4eec\u8ba8\u8bba\u7684\u95ee\u9898\u662f\u9759\u6001\u5e93\u3002\u4e3a\u4e86\u663e\u793awindows\u548clinux\u521b\u5efa\u9759\u6001\u5e93\u4e4b\u95f4\u7684\u5dee\u522b\uff0c\u6211\u4eec\u9996\u5148\u5728windows\u4e0a\u9762\u5229\u7528Visual C++6.0\u521b\u5efa\u4e00\u4e2a\u9759\u6001\u5e93\u3002\u6e90\u6587\u4ef6\u7684\u4ee3\u7801\u5f88\u7b80\u5355\uff0c<\/p>\n\n\n
\n#include "test.h"\nint add(int a, int b)\n{\n    return a + b;\n}\n<\/pre><\/div>\n\n\n
\u5934\u6587\u4ef6\u4ee3\u7801\u4e5f\u4e0d\u96be\uff0c<\/p>\n\n\n
\n#ifndef _TEST_H\n#define _TEST_H\nint add(int a, int b);\n#endif\n<\/pre><\/div>\n\n\n
\u5982\u679c\u4f60\u9700\u8981\u5728windows\u4e0a\u9762\u521b\u5efa\u4e00\u4e2a\u9759\u6001\u5e93\uff0c\u90a3\u4e48\u4f60\u9700\u8981\u8fdb\u884c\u4e0b\u9762\u7684\u64cd\u4f5c\uff0c
\uff081\uff09\u6253\u5f00visual C++ 6.0\u5de5\u5177\uff0c\u5355\u51fb\u3010File\u3011-> \u3010New\u3011->\u3010Projects\u3011
\uff082\uff09\u9009\u62e9\u3010Win32 Static Library\u3011\uff0c\u540c\u65f6\u5728\u3010Project Name\u3011\u5199\u4e0a\u9879\u76ee\u540d\u79f0\uff0c\u5728\u3010Location\u3011\u9009\u62e9\u9879\u76ee\u4fdd\u5b58\u5730\u5740
\uff083\uff09\u5355\u51fb\u3010Ok\u3011\uff0c\u7ee7\u7eed\u5355\u51fb\u3010Finish\u3011\uff0c\u518d\u5355\u51fb\u3010Ok\u3011\uff0c\u8fd9\u6837\u4e00\u4e2a\u9759\u6001\u5e93\u5de5\u7a0b\u5c31\u521b\u5efa\u597d\u4e86
\uff084\uff09\u91cd\u65b0\u5355\u51fb\u3010File\u3011->\u3010New\u3011->\u3010Files\u3011\uff0c\u9009\u62e9\u3010C++ Source Files\u3011\uff0c
\uff085\uff09\u9009\u4e2d\u3010Add to pproject\u3011\uff0c\u5c06\u6e90\u6587\u4ef6\u52a0\u5165\u5230\u521a\u624d\u521b\u5efa\u7684\u5de5\u7a0b\u4e2d\u53bb\uff0c\u5728File\u4e2d\u8f93\u5165\u6587\u4ef6\u540d+.c\u540e\u7f00
\uff086\uff09\u91cd\u590d4\u30015\u7684\u64cd\u4f5c\uff0c\u52a0\u5165\u4e00\u4e2a\u6587\u4ef6\u540d+.h\u5934\u6587\u4ef6
\uff087\uff09\u5206\u522b\u5728\u5934\u6587\u4ef6\u548c\u6e90\u6587\u4ef6\u4e2d\u8f93\u5165\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u5355\u51fbF7\u6309\u94ae\uff0c\u5373\u53ef\u5728Debug\u76ee\u5f55\u4e2d\u751f\u6210*.lib\u9759\u6001\u5e93\u6587\u4ef6<\/p>\n\n\n\n
\u90a3\u4e48\uff0c\u5728linux\u4e0b\u9762\u5e94\u8be5\u600e\u4e48\u8fd0\u884c\u5462\uff1f\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u4e24\u6761\u547d\u4ee4\u89e3\u51b3\uff0c
\uff081\uff09\u9996\u5148\u751f\u6210*.o\u6587\u4ef6\uff0c\u8f93\u5165gcc -c test.c -o test.o
\uff082\uff09\u5229\u7528ar\u547d\u4ee4\u751f\u6210\u9759\u6001\u5e93\uff0c\u8f93\u5165ar rc libtest.a test.o<\/p>\n\n\n\n
\u6b64\u65f6\u5982\u679c\u8fd8\u6709\u4e00\u4e2ahello.c\u6587\u4ef6\u4f7f\u7528\u5230\u4e86\u8fd9\u4e2a\u9759\u6001\u5e93\uff0c\u6bd4\u5982\u8bf4 \uff0c<\/p>\n\n\n
\n#include <stdio.h>\n#include "test.h"\nint main()\n{\n    printf("%d\\n", add(2, 3));\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u5176\u5b9e\u4e5f\u5f88\u7b80\u5355\uff0c\u8f93\u5165\u4e00\u4e2a\u7b80\u5355\u7684\u547d\u4ee4\u5c31\u53ef\u4ee5\u751f\u6210\u6267\u884c\u6587\u4ef6\u4e86\uff0c
\uff081\uff09\u9996\u5148\u8f93\u5165gcc hello.c -o hello .\/libtest.a
\uff082\uff09\u8f93\u5165.\/hello\uff0c\u9a8c\u8bc1\u751f\u6210\u7684\u6267\u884c\u6587\u4ef6\u662f\u5426\u6b63\u786e
\uff083\uff09\u670b\u53cb\u4eec\u53ef\u4ee5\u5220\u9664libtest.a\u6587\u4ef6\uff0c\u91cd\u65b0\u8f93\u5165.\/hello\uff0c\u9a8c\u8bc1\u6267\u884c\u6587\u4ef6\u662f\u5426\u53ef\u4ee5\u6b63\u5e38\u8fd0\u884c<\/p>\n\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u52a8\u6001\u5e93\uff09
\u52a8\u6001\u94fe\u63a5\u5e93\u4e0d\u662flinux\u72ec\u6709\u7684\u7279\u6027\uff0c\u5728windows\u4e0b\u9762\u4e5f\u5b58\u5728\u8fd9\u6837\u7684\u7279\u6027\u3002\u4e00\u822c\u6765\u8bf4\uff0cwindows\u4e0b\u9762\u7684\u52a8\u6001\u8fde\u63a5\u5e93\u662f\u4ee5.dll\u4f5c\u4e3a\u7ed3\u5c3e\u7684\uff0c\u800clinux\u4e0b\u9762\u7684\u52a8\u6001\u8fde\u63a5\u5e93\u662f\u4ee5<\/em>.so\u7ed3\u5c3e\u7684\u3002\u548c\u9759\u6001\u94fe\u63a5\u5e93\u76f8\u6bd4\uff0c\u52a8\u6001\u8fde\u63a5\u5e93\u53ef\u4ee5\u5171\u4eab\u5185\u5b58\u8d44\u6e90\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u5185\u5b58\u6d88\u8017\u3002\u53e6\u5916\uff0c\u52a8\u6001\u8fde\u63a5\u662f\u9700\u8981\u7ecf\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u52a0\u8f7d\u5668\u7684\u5e2e\u52a9\u624d\u80fd\u88ab\u666e\u901a\u6267\u884c\u6587\u4ef6\u53d1\u73b0\u7684\uff0c\u6240\u4ee5\u52a8\u6001\u8fde\u63a5\u5e93\u53ef\u4ee5\u51cf\u5c11\u94fe\u63a5\u7684\u6b21\u6570\u3002\u6709\u4e86\u8fd9\u4e2a\u7279\u70b9\uff0c\u6211\u4eec\u5c31\u4e0d\u96be\u53d1\u73b0\u4e3a\u4ec0\u4e48\u5f88\u591a\u8f6f\u4ef6\u7684\u8865\u4e01\u5176\u5b9e\u90fd\u662f\u4ee5\u52a8\u6001\u5e93\u53d1\u5e03\u7684\u3002<\/p>\n\n\n\n
\u90a3\u4e48\uff0c\u5728Linux\u4e0a\u52a8\u6001\u5e93\u662f\u600e\u4e48\u751f\u6210\u7684\u5462\uff1f<\/p>\n\n\n
\n#include "test.h"\nint add(int a, int b)\n{\n    return a + b;\n}\n<\/pre><\/div>\n\n\n
\u5934\u6587\u4ef6\u683c\u5f0f\uff0c<\/p>\n\n\n
\n#ifndef _TEST_H\n#define _TEST_H\nint add(int a, int b);\n#endif\n<\/pre><\/div>\n\n\n
\u6b64\u65f6\u5982\u679c\u6211\u4eec\u60f3\u8981\u751f\u6210\u52a8\u6001\u5e93\uff0c\u8981\u505a\u7684\u5de5\u4f5c\u5176\u5b9e\u975e\u5e38\u7b80\u5355\uff0c\u8f93\u5165gcc -shared -fPIC -o libtest.so test.c\u5373\u53ef\u3002\u56de\u8f66\u540e\u8f93\u5165ls\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u53d1\u73b0\u5f53\u524d\u76ee\u5f55\u4e0b\u9762\u51fa\u73b0\u4e86libtest.so\u6587\u4ef6\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include "test.h"\nint main()\n{\n    printf("%d\\n", add(2, 3));\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u5f53\u4e2d\uff0c\u6211\u4eec\u53d1\u73b0\u4f7f\u7528\u5230\u4e86add\u51fd\u6570\uff0c\u90a3\u4e48\u6b64\u65f6\u5982\u4f55\u624d\u80fd\u751f\u6210\u4e00\u4e2a\u6267\u884c\u6587\u4ef6\u5462\uff1f\u4e5f\u5f88\u7b80\u5355\uff0c\u8f93\u5165gcc hello.c -o hello .\/libtest.so\u3002\u7136\u540e\u8f93\u5165.\/hello\uff0c\u6b64\u65f6\u53ef\u4ee5\u9a8c\u8bc1\u4e00\u4e0b\u6267\u884c\u6587\u4ef6\u8fd0\u884c\u662f\u5426\u6b63\u786e\u3002\u5728\u7f16\u5199\u9759\u6001\u5e93\u7684\u65f6\u5019\uff0c\u6211\u8bf4\u8fc7\u9759\u6001\u5e93\u662f\u6c47\u7f16\u94fe\u63a5\u5230\u6267\u884c\u6587\u4ef6\u5f53\u4e2d\u7684\uff0c\u800c\u52a8\u6001\u5e93\u4e0d\u4f1a\u3002\u670b\u53cb\u4eec\u53ef\u4ee5\u505a\u4e2a\u5c0f\u5b9e\u9a8c\uff0c\u5220\u9664libtest.so\uff0c\u7136\u540e\u8f93\u5165.\/hello\u3002\u6b64\u65f6\u5927\u5bb6\u53ef\u4ee5\u770b\u770b\u7cfb\u7edf\u6709\u6ca1\u6709\u9519\u8bef\u8fd4\u56de\uff1f
\u8fd9\u4e2a\u65f6\u5019\uff0c\u6709\u7684\u670b\u53cb\u5c31\u4f1a\u95ee\u4e86\uff0c\u90a3\u5728windows\u4e0b\u9762dll\u5e94\u8be5\u600e\u4e48\u7f16\u5199\u5462\uff1f\u5176\u5b9e\u4e5f\u4e0d\u96be\uff0c\u53ea\u8981\u5728test.h\u4e0a\u9762\u7a0d\u4f5c\u6539\u53d8\u5373\u53ef\u3002\u5176\u4ed6\u7684\u6b65\u9aa4\u548c\u9759\u6001\u5e93\u7684\u64cd\u4f5c\u662f\u57fa\u672c\u7c7b\u4f3c\u7684\u3002<\/p>\n\n\n
\n#ifndef _TEST_H\n#define _TEST_H\n#ifdef USR_DLL\n#define DLL_API _declspec(dllexport)\n#else\n#define DLL_API _declspec(dllimport)\n#endif\nDLL_API int add(int a, int b);\n#endif\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u5b9a\u65f6\u5668\uff09
\u5b9a\u65f6\u5668\u662f\u6211\u4eec\u9700\u8981\u7ecf\u5e38\u5904\u7406\u7684\u4e00\u79cd\u8d44\u6e90\u3002\u90a3linux\u4e0b\u9762\u7684\u5b9a\u65f6\u5668\u53c8\u662f\u600e\u4e48\u4e00\u56de\u4e8b\u5462\uff1f\u5176\u5b9e\uff0c\u5728linux\u91cc\u9762\u6709\u4e00\u79cd\u8fdb\u7a0b\u4e2d\u4fe1\u606f\u4f20\u9012\u7684\u65b9\u6cd5\uff0c\u90a3\u5c31\u662f\u4fe1\u53f7\u3002\u8fd9\u91cc\u7684\u5b9a\u65f6\u5668\u5c31\u76f8\u5f53\u4e8e\u7cfb\u7edf\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u7ed9\u8fdb\u7a0b\u53d1\u4e00\u4e2a\u5b9a\u65f6\u4fe1\u53f7\uff0c\u6211\u4eec\u6240\u8981\u505a\u7684\u5c31\u662f\u5b9a\u4e49\u4e00\u4e2a\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <time.h>\n#include <sys\/time.h>\n#include <stdlib.h>\n#include <signal.h>\nstatic int count = 0;\nstatic struct itimerval oldtv;\nvoid set_timer()\n{\n    struct itimerval itv;\n    itv.it_interval.tv_sec = 1;\n    itv.it_interval.tv_usec = 0;\n    itv.it_value.tv_sec = 1;\n    itv.it_value.tv_usec = 0;\n    setitimer(ITIMER_REAL, &itv, &oldtv);\n}\nvoid signal_handler(int m)\n{\n    count ++;\n    printf("%d\\n", count);\n}\nint main()\n{\n    signal(SIGALRM, signal_handler);\n    set_timer();\n    while(count < 10000);\n    exit(0);\n    return 1;\n}\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u81ea\u52a8\u7f16\u8bd1\u5de5\u5177\uff09
\u5728Linux\u4e0b\u9762\uff0c\u7f16\u5199makefile\u662f\u4e00\u4ef6\u8f9b\u82e6\u7684\u4e8b\u60c5\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u51cf\u8f7b\u7a0b\u5e8f\u5458\u7f16\u5199makefile\u7684\u8d1f\u62c5\uff0c\u4eba\u4eec\u53d1\u660e\u4e86autoconf\u548cautomake\u8fd9\u4e24\u4e2a\u5de5\u5177\uff0c\u53ef\u4ee5\u5f88\u597d\u5730\u5e2e\u6211\u4eec\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u5982\u4f55\u4f7f\u7528\u914d\u7f6e\u5de5\u5177\u3002<\/p>\n\n\n\n
\uff081\uff09\u9996\u5148\uff0c\u7f16\u5199\u6e90\u6587\u4ef6hello.c\u3002<\/p>\n\n\n
\n#include <stdio.h>\nint main(int argc, char** argv[])\n{\n    printf("hello, world!\\n");\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\uff082\uff09\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2aMakefile.am\uff0c\u540c\u65f6\u7f16\u5199\u4e0a\u811a\u672c\u3002<\/p>\n\n\n
\nSUBDIRS=\nbin_PROGRAMS=hello\nhello_SOURCES=hello.c\n<\/pre><\/div>\n\n\n
\uff083\uff09\u76f4\u63a5\u8f93\u5165autoscan\uff0c\u751f\u6210\u6587\u4ef6configure.scan\uff0c\u518d\u6539\u540d\u4e3aconfigure.in\u3002\u4fee\u6539\u811a\u672cAC_INIT(FULL-PACKAGE-NAME, VERSION, BUG-REPORT-ADDRESS)\u4e3aAC_INIT(hello, 1.0, feixiaoxing@163.com)\u540c\u65f6\uff0c\u5728AC_CONFIG_HEADER([config.h])\u540e\u9762\u6dfb\u52a0AM_INIT_AUTOMAKE(hello, 0.1)
\uff084\uff09\u4f9d\u6b21\u8f93\u5165aclocal\u547d\u4ee4\u3001autoheader\u547d\u4ee4
\uff085\uff09\u521b\u5efa4\u4e2a\u6587\u4ef6\uff0c\u5206\u522b\u4e3aREADME\u3001NEWS\u3001AUTHORS\u548cChangeLog
\uff086\uff09\u4f9d\u6b21\u8f93\u5165automake -a\u3001autoconf\u547d\u4ee4
\uff087\uff09\u8f93\u5165.\/configure\uff0c\u751f\u6210\u6700\u7ec8\u7684Makefile
\uff088\uff09\u5982\u679c\u9700\u8981\u7f16\u8bd1\uff0c\u8f93\u5165make\uff1b\u5982\u679c\u9700\u8981\u5b89\u88c5\uff0c \u8f93\u5165make install\uff1b\u5982\u679c\u9700\u8981\u53d1\u5e03\u8f6f\u4ef6\u5305\uff0c\u8f93\u5165make dist<\/p>\n\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u8fdb\u7a0b\u521b\u5efa\uff09
\u5728Linux\u4e0b\u9762\uff0c\u521b\u5efa\u8fdb\u7a0b\u662f\u4e00\u4ef6\u5341\u5206\u6709\u610f\u601d\u7684\u4e8b\u60c5\u3002\u6211\u4eec\u90fd\u77e5\u9053\uff0c\u8fdb\u7a0b\u662f\u64cd\u4f5c\u7cfb\u7edf\u4e0b\u9762\u4eab\u6709\u8d44\u6e90\u7684\u57fa\u672c\u5355\u4f4d\u3002\u90a3\u4e48\uff0c\u5728Linux\u4e0b\u9762\u5e94\u8be5\u600e\u4e48\u521b\u5efa\u8fdb\u7a0b\u5462\uff1f\u5176\u5b9e\u975e\u5e38\u7b80\u5355\uff0c\u4e00\u4e2afork\u51fd\u6570\u5c31\u53ef\u4ee5\u641e\u5b9a\u4e86\u3002\u4f46\u662f\uff0c\u6211\u4eec\u9700\u8981\u6e05\u695a\u7684\u662f\u5b50\u8fdb\u7a0b\u4e0e\u7236\u8fdb\u7a0b\u4e4b\u95f4\u9664\u4e86\u4ee3\u7801\u662f\u5171\u4eab\u7684\u4e4b\u5916\uff0c\u5806\u6808\u6570\u636e\u548c\u5168\u5c40\u6570\u636e\u5747\u662f\u72ec\u7acb\u7684\u3002<\/p>\n\n\n
\n#include <unistd.h>\n#include <stdio.h>\n#include <stdlib.h>\n#include <math.h>\n#include <errno.h>\n#include <sys\/types.h>\n#include <sys\/wait.h>\nint main()\n{\n    pid_t pid;\n    if(-1 == (pid = fork())) {\n        printf("Error happened in fork function!\\n");\n        return 0;\n    }\n    if(0 == pid) {\n        printf("This is child process: %d\\n", getpid());\n    } else {\n        printf("This is parent process: %d\\n", getpid());\n    }\n    return 0;\n}\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u8fdb\u7a0b\u7b49\u5f85\uff09
\u6240\u8c13\u8fdb\u7a0b\u7b49\u5f85\uff0c\u5176\u5b9e\u5f88\u7b80\u5355\u3002\u524d\u9762\u6211\u4eec\u8bf4\u8fc7\u53ef\u4ee5\u7528fork\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u90a3\u4e48\u8fd9\u91cc\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528wait\u51fd\u6570\u8ba9\u7236\u8fdb\u7a0b\u7b49\u5f85\u5b50\u8fdb\u7a0b\u8fd0\u884c\u7ed3\u675f\u540e\u624d\u5f00\u59cb\u8fd0\u884c\u3002\u6ce8\u610f\uff0c\u4e3a\u4e86\u8bc1\u660e\u7236\u8fdb\u7a0b\u786e\u5b9e\u662f\u7b49\u5f85\u5b50\u8fdb\u7a0b\u8fd0\u884c\u7ed3\u675f\u540e\u624d\u7ee7\u7eed\u8fd0\u884c\u7684\uff0c\u6211\u4eec\u4f7f\u7528\u4e86sleep\u51fd\u6570\u3002\u4f46\u662f\uff0c\u5728linux\u4e0b\u9762\uff0csleep\u51fd\u6570\u7684\u53c2\u6570\u662f\u79d2\uff0c\u800cwindows\u4e0b\u9762sleep\u7684\u51fd\u6570\u53c2\u6570\u662f\u6beb\u79d2\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <stdlib.h>\n#include <unistd.h>\nint main(int argc, char* argv[])\n{\n    pid_t pid;\n    pid = fork();\n    if(0 == pid) {\n        printf("This is child process, %d\\n", getpid());\n        sleep(5);\n    } else {\n        wait(NULL);\n        printf("This is parent process, %d\\n", getpid());\n    }\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u4e0b\u9762\uff0c\u6211\u4eec\u9700\u8981\u505a\u7684\u5c31\u662f\u4e24\u6b65\uff0c\u9996\u5148\u8f93\u5165gcc fork.c -o fork\uff0c \u7136\u540e\u8f93\u5165.\/fork\uff0c\u5c31\u4f1a\u5728console\u4e0b\u9762\u83b7\u5f97\u8fd9\u6837\u7684\u7ed3\u679c\u3002<\/p>\n\n\n
\n[root@localhost fork]# .\/fork\nThis is child process, 2135\nThis is parent process, 2134\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u4fe1\u53f7\u5904\u7406\uff09
\u4fe1\u53f7\u5904\u7406\u662flinux\u7a0b\u5e8f\u7684\u4e00\u4e2a\u7279\u8272\u3002\u7528\u4fe1\u53f7\u5904\u7406\u6765\u6a21\u62df\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e2d\u65ad\u529f\u80fd\uff0c\u5bf9\u4e8e\u6211\u4eec\u8fd9\u4e9b\u7cfb\u7edf\u7a0b\u5e8f\u5458\u6765\u8bf4\u662f\u6700\u597d\u7684\u4e00\u4e2a\u9009\u62e9\u4e86\u3002\u8981\u60f3\u4f7f\u7528\u4fe1\u53f7\u5904\u7406\u529f\u80fd\uff0c\u4f60\u8981\u505a\u7684\u5c31\u662f\u586b\u5199\u4e00\u4e2a\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u5373\u53ef\u3002\u4e00\u65e6\u8fdb\u7a0b\u6709\u5f85\u5904\u7406\u7684\u4fe1\u53f7\u5904\u7406\uff0c\u90a3\u4e48\u8fdb\u7a0b\u5c31\u4f1a\u7acb\u5373\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <stdlib.h>\n#include <signal.h>\nint value = 0;\nvoid func(int sig)\n{\n    printf("I get a signal!\\n");\n    value = 1;\n}\nint main()\n{\n    signal(SIGINT, func);\n    while(0 == value)\n        sleep(1);\n    return 0;\n}\n<\/pre><\/div>\n\n\n
\u4e3a\u4e86\u663e\u793alinux\u5bf9signal\u7684\u5904\u7406\u6d41\u7a0b\uff0c\u6211\u4eec\u9700\u8981\u8fdb\u884c\u4e24\u4e2a\u6b65\u9aa4\u3002
\u7b2c\u4e00\uff0c\u8f93\u5165gcc sig.c -o sig, \u7136\u540e\u8f93\u5165.\/sig\u5373\u53ef\uff1b
\u7b2c\u4e8c\u5219\u91cd\u542f\u4e00\u4e2aconsole\u7a97\u53e3\uff0c\u8f93\u5165ps -aux | grep sig\uff0c \u5728\u83b7\u53d6sig\u7684pid\u4e4b\u540e\u7136\u540e\u8f93\u5165kill -INT 2082\uff0c \u6211\u4eec\u5373\u53ef\u5f97\u5230\u5982\u4e0b\u7684\u8f93\u51fa\u3002<\/p>\n\n\n
\n[root@localhost fork]#.\/sig\nI get a signal!\n[root@localhost fork]#\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u7ba1\u9053\u901a\u4fe1\uff09
Linux\u7cfb\u7edf\u672c\u8eab\u4e3a\u8fdb\u7a0b\u95f4\u901a\u4fe1\u63d0\u4f9b\u4e86\u5f88\u591a\u7684\u65b9\u5f0f\uff0c\u6bd4\u5982\u8bf4\u7ba1\u9053\u3001\u5171\u4eab\u5185\u5b58\u3001socket\u901a\u4fe1\u7b49\u3002\u7ba1\u9053\u7684\u4f7f\u7528\u5341\u5206\u7b80\u5355\uff0c\u5728\u521b\u5efa\u4e86\u533f\u540d\u7ba1\u9053\u4e4b\u540e\uff0c\u6211\u4eec\u53ea\u9700\u8981\u4ece\u4e00\u4e2a\u7ba1\u9053\u53d1\u9001\u6570\u636e\uff0c\u518d\u4ece\u53e6\u5916\u4e00\u4e2a\u7ba1\u9053\u63a5\u53d7\u6570\u636e\u5373\u53ef\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <unistd.h>\n#include <stdlib.h>\n#include <string.h>\nint pipe_default[2];\nint main()\n{\n    pid_t pid;\n    char buffer[32];\n    memset(buffer, 0, 32);\n    if(pipe(pipe_default) < 0) {\n        printf("Failed to create pipe!\\n");\n        return 0;\n    }\n    if(0 == (pid = fork())) {\n        close(pipe_default[1]);\n        sleep(5);\n        if(read(pipe_default[0], buffer, 32) > 0) {\n            printf("Receive data from server, %s!\\n", buffer);\n        }\n        close(pipe_default[0]);\n    } else {\n        close(pipe_default[0]);\n        if(-1 != write(pipe_default[1], "hello", strlen("hello"))) {\n            printf("Send data to client, hello!\\n");\n        }\n        close(pipe_default[1]);\n        waitpid(pid, NULL, 0);\n    }\n    return 1;\n}\n<\/pre><\/div>\n\n\n
\u4e0b\u9762\u6211\u4eec\u5c31\u53ef\u4ee5\u5f00\u59cb\u7f16\u8bd1\u8fd0\u884c\u4e86\uff0c\u8001\u89c4\u77e9\u5206\u6210\u4e24\u6b65\u9aa4\u8fdb\u884c\uff1a
\uff081\uff09\u8f93\u5165gcc pipe.c -o pipe\uff1b
\uff082\uff09\u7136\u540e\u8f93\u5165.\/pipe\uff0c\u8fc7\u4e00\u4f1a\u513f\u4f60\u5c31\u53ef\u4ee5\u770b\u5230\u4e0b\u9762\u7684\u6253\u5370\u4e86\u3002<\/p>\n\n\n
\n[test@localhost pipe]$ .\/pipe\nSend data to client, hello!\nReceive data from server, hello!\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u591a\u7ebf\u7a0b\u7f16\u7a0b\uff09
\u591a\u7ebf\u7a0b\u548c\u591a\u8fdb\u7a0b\u8fd8\u662f\u6709\u5f88\u591a\u533a\u522b\u7684\u3002\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\uff0c\u591a\u8fdb\u7a0b\u662flinux\u5185\u6838\u672c\u8eab\u6240\u652f\u6301\u7684\uff0c\u800c\u591a\u7ebf\u7a0b\u5219\u9700\u8981\u76f8\u5e94\u7684\u52a8\u6001\u5e93\u8fdb\u884c\u652f\u6301\u3002\u5bf9\u4e8e\u8fdb\u7a0b\u800c\u8a00\uff0c\u6570\u636e\u4e4b\u95f4\u90fd\u662f\u76f8\u4e92\u9694\u79bb\u7684\uff0c\u800c\u591a\u7ebf\u7a0b\u5219\u4e0d\u540c\uff0c\u4e0d\u540c\u7684\u7ebf\u7a0b\u9664\u4e86\u5806\u6808\u7a7a\u95f4\u4e4b\u5916\u6240\u6709\u7684\u6570\u636e\u90fd\u662f\u5171\u4eab\u7684\u3002\u8bf4\u4e86\u8fd9\u4e48\u591a\uff0c\u6211\u4eec\u8fd8\u662f\u81ea\u5df1\u7f16\u5199\u4e00\u4e2a\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u770b\u770b\u7ed3\u679c\u7a76\u7adf\u662f\u600e\u4e48\u6837\u7684\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <pthread.h>\n#include <unistd.h>\n#include <stdlib.h>\nvoid func_1(void* args)\n{\n    while(1) {\n        sleep(1);\n        printf("this is func_1!\\n");\n    }\n}\nvoid func_2(void* args)\n{\n    while(1) {\n        sleep(2);\n        printf("this is func_2!\\n");\n    }\n}\nint main()\n{\n    pthread_t pid1, pid2;\n    if(pthread_create(&pid1, NULL, func_1, NULL)) {\n        return -1;\n    }\n    if(pthread_create(&pid2, NULL, func_2, NULL)) {\n        return -1;\n    }\n    while(1) {\n        sleep(3);\n    }\n    return 0;\n}\n<\/pre><\/div>\n\n\n
\u548c\u6211\u4eec\u4ee5\u524d\u7f16\u5199\u7684\u7a0b\u5e8f\u6709\u6240\u4e0d\u540c\uff0c\u591a\u7ebf\u7a0b\u4ee3\u7801\u9700\u8981\u8fd9\u6837\u7f16\u8bd1\uff0c\u8f93\u5165gcc thread.c -o thread -lpthread\uff0c\u7f16\u8bd1\u4e4b\u540e\u4f60\u5c31\u53ef\u4ee5\u770b\u5230thread\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u8f93\u5165.\/thread\u5373\u53ef\u3002<\/p>\n\n\n
\n[test@localhost Desktop]$ .\/thread\nthis is func_1!\nthis is func_2!\nthis is func_1!\nthis is func_1!\nthis is func_2!\nthis is func_1!\nthis is func_1!\nthis is func_2!\nthis is func_1!\nthis is func_1!\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u7ebf\u7a0b\u7b49\u5f85\uff09
\u548c\u591a\u8fdb\u7a0b\u4e00\u6837\uff0c\u591a\u7ebf\u7a0b\u4e5f\u6709\u81ea\u5df1\u7684\u7b49\u5f85\u51fd\u6570\u3002\u8fd9\u4e2a\u7b49\u5f85\u51fd\u6570\u5c31\u662fpthread_join\u51fd\u6570\u3002\u90a3\u4e48\u8fd9\u4e2a\u51fd\u6570\u6709\u4ec0\u4e48\u7528\u5462\uff1f\u6211\u4eec\u5176\u5b9e\u53ef\u4ee5\u7528\u5b83\u6765\u7b49\u5f85\u7ebf\u7a0b\u8fd0\u884c\u7ed3\u675f\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <pthread.h>\n#include <unistd.h>\n#include <stdlib.h>\nvoid func(void* args)\n{\n    sleep(2);\n    printf("this is func!\\n");\n}\nint main()\n{\n    pthread_t pid;\n    if(pthread_create(&pid, NULL, func, NULL)) {\n        return -1;\n    }\n    pthread_join(pid, NULL);\n    printf("this is end of main!\\n");\n    return 0;\n}\n<\/pre><\/div>\n\n\n
\u7f16\u5199wait.c\u6587\u4ef6\u7ed3\u675f\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f00\u59cb\u7f16\u8bd1\u4e86\u3002\u9996\u5148\u4f60\u9700\u8981\u8f93\u5165gcc wait.c -o wait -lpthread\uff0c\u7f16\u8bd1\u4e4b\u540e\u4f60\u5c31\u53ef\u4ee5\u770b\u5230wait\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u8f93\u5165.\/wait\u5373\u53ef\u3002<\/p>\n\n\n
\n[test@localhost thread]$ .\/thread\nthis is func!\nthis is end of main!\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u7ebf\u7a0b\u4e92\u65a5\uff09
\u5bf9\u4e8e\u7f16\u5199\u591a\u7ebf\u7a0b\u7684\u670b\u53cb\u6765\u8bf4\uff0c\u7ebf\u7a0b\u4e92\u65a5\u662f\u5c11\u4e0d\u4e86\u7684\u3002\u5728linux\u4e0b\u9762\uff0c\u7f16\u5199\u591a\u7ebf\u7a0b\u5e38\u7528\u7684\u5de5\u5177\u5176\u5b9e\u662fpthread_mutex_t\u3002\u672c\u8d28\u4e0a\u6765\u8bf4\uff0c\u5b83\u548cWindows\u4e0b\u9762\u7684mutex\u5176\u5b9e\u662f\u4e00\u6837\u7684\uff0c\u5dee\u522b\u51e0\u4e4e\u662f\u6ca1\u6709\u3002\u5e0c\u671b\u5bf9\u7ebf\u7a0b\u4e92\u65a5\u8fdb\u884c\u8be6\u7ec6\u4e86\u89e3\u7684\u670b\u53cb\u53ef\u4ee5\u770b\u8fd9\u91cc\u3002<\/p>\n\n\n
\n#include <stdio.h>\n#include <pthread.h>\n#include <unistd.h>\n#include <stdlib.h>\nstatic int value = 0;\npthread_mutex_t mutex;\nvoid func(void* args)\n{\n    while(1) {\n        pthread_mutex_lock(&mutex);\n        sleep(1);\n        value ++;\n        printf("value = %d!\\n", value);\n        pthread_mutex_unlock(&mutex);\n    }\n}\nint main()\n{\n    pthread_t pid1, pid2;\n    pthread_mutex_init(&mutex, NULL);\n    if(pthread_create(&pid1, NULL, func, NULL)) {\n        return -1;\n    }\n    if(pthread_create(&pid2, NULL, func, NULL)) {\n        return -1;\n    }\n    while(1)\n        sleep(0);\n    return 0;\n}\n<\/pre><\/div>\n\n\n
\u7f16\u5199mutex.c\u6587\u4ef6\u7ed3\u675f\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f00\u59cb\u7f16\u8bd1\u4e86\u3002\u9996\u5148\u4f60\u9700\u8981\u8f93\u5165gcc mutex.c -o mutex -lpthread\uff0c\u7f16\u8bd1\u4e4b\u540e\u4f60\u5c31\u53ef\u4ee5\u770b\u5230mutex\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u8f93\u5165.\/mutex\u5373\u53ef\u3002<\/p>\n\n\n
\n[test@localhost thread]$ .\/mutex\nvalue = 1!\nvalue = 2!\nvalue = 3!\nvalue = 4!\nvalue = 5!\nvalue = 6!\n<\/pre><\/div>\n\n\n
linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\uff08\u7f51\u7edc\u7f16\u7a0b\uff09
\u4e0d\u7ba1\u5728Windows\u5e73\u53f0\u4e0b\u9762\u8fd8\u662f\u5728Linux\u5e73\u53f0\u4e0b\u9762\uff0c\u7f51\u7edc\u7f16\u7a0b\u90fd\u662f\u5c11\u4e0d\u4e86\u7684\u3002\u5728\u4e92\u8054\u7f51\u53d1\u8fbe\u7684\u4eca\u5929\uff0c\u6211\u4eec\u7684\u751f\u6d3b\u57fa\u672c\u4e0a\u5df2\u7ecf\u79bb\u4e0d\u5f00\u7f51\u7edc\u4e86\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u7f51\u7edc\u5e72\u5f88\u591a\u7684\u4e8b\u60c5\uff0c\u6bd4\u5982\u8bf4IM\u804a\u5929\u3001FTP\u4e0b\u8f7d\u3001\u7535\u5b50\u94f6\u884c\u3001\u7f51\u7edc\u8d2d\u7269\u3001\u5728\u7ebf\u6e38\u620f\u3001\u7535\u5b50\u90ae\u4ef6\u7684\u6536\u53d1\u7b49\u7b49\u3002\u6240\u4ee5\u8bf4\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u8f6f\u4ef6\u7684\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u5982\u679c\u8bf4\u4ed6\u4e0d\u4f1a\u8fdb\u884c\u7f51\u7edc\u7a0b\u5e8f\u7684\u5f00\u53d1\uff0c\u90a3\u771f\u662f\u96be\u4ee5\u60f3\u8c61\u7684\u3002<\/p>\n\n\n\n
\u5728\u5f00\u59cb\u4ecb\u7ecd\u7f51\u7edc\u7f16\u7a0b\u7684\u65b9\u6cd5\u4e4b\u524d\uff0c\u6211\u4eec\u53ef\u4ee5\u56de\u5fc6\u4e00\u4e0b\u8ba1\u7b97\u673a\u7f51\u7edc\u7684\u76f8\u5173\u77e5\u8bc6\u3002\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u4f7f\u7528\u7684\u6700\u591a\u7f51\u7edc\u534f\u8bae\u8fd8\u662ftcp\/ip\u7f51\u7edc\u3002\u901a\u5e38\u6765\u8bf4\uff0c\u6211\u4eec\u4e60\u60ef\u4e0a\u79f0\u4e3atcp\/ip\u534f\u8bae\u6808\u3002\u81f3\u4e8e\u534f\u8bae\u6808\u5206\u6210\u51e0\u5c42\uff0c\u6709\u4e24\u79cd\u8bf4\u6cd5\u3002\u4e00\u79cd\u662f\u4e94\u5c42\uff0c\u4e00\u79cd\u662f\u4e03\u5c42\uff0c\u6211\u4e2a\u4eba\u672c\u8eab\u4e5f\u6bd4\u8f83\u503e\u5411\u4e8e\u4e94\u5c42\u7684\u5212\u5206\u65b9\u6cd5\u3002\u5927\u5bb6\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u56fe\u770b\u770b\u534f\u8bae\u6808\u662f\u600e\u4e48\u5212\u5206\u7684\u3002<\/p>\n\n\n\n
5\u3001\u5e94\u7528\u5c42
4\u3001\u4f20\u8f93\u5c42
3\u3001\u7f51\u7edc\u5c42
2\u3001\u6570\u636e\u94fe\u8def\u5c42
1\u3001\u7269\u7406\u5c42<\/p>\n\n\n\n
\u7f51\u7edc\u7684\u4e0d\u540c\u5c42\u6b21\u5b9e\u73b0\u7f51\u7edc\u7684\u4e0d\u540c\u529f\u80fd\u3002\u7269\u7406\u5c42\u4e3b\u8981\u5b9e\u73b0\u62a5\u6587\u7684\u6210\u5e27\u5904\u7406\uff1b\u6570\u636e\u94fe\u8def\u5c42\u5b8c\u6210\u5bf9\u62a5\u6587\u7684\u4f18\u5148\u7ea7\u7684\u7ba1\u7406\uff0c\u540c\u65f6\u5b9e\u73b0\u4e8c\u5c42\u8f6c\u53d1\u548c\u6d41\u91cf\u63a7\u5236\uff1b\u7f51\u7edc\u5c42\u5b9e\u73b0\u8def\u7531\u548c\u8f6c\u53d1\u7684\u529f\u80fd\uff0c\u4e00\u65b9\u9762\u5b83\u9700\u8981\u5b9e\u73b0\u5bf9\u62a5\u6587\u7684fragment\u5904\u7406\uff0c\u53e6\u5916\u4e00\u65b9\u9762\u5b83\u8fd8\u9700\u8981\u5bf9\u8def\u7531\u4fe1\u606f\u8fdb\u884c\u5904\u7406\u548c\u4fdd\u5b58\uff1b\u4f20\u8f93\u5c42\u5b9e\u73b0\u62a5\u6587\u7684\u53d1\u9001\u548c\u63a5\u53d7\uff0c\u5b83\u5229\u7528\u8ba1\u6570\u3001\u65f6\u5e8f\u3001\u5b9a\u65f6\u5668\u3001\u91cd\u53d1\u7b49\u673a\u5236\u5b9e\u73b0\u5bf9\u62a5\u6587\u7684\u51c6\u786e\u53d1\u9001\uff0c\u5f53\u7136\u8fd9\u90fd\u662ftcp\u7684\u53d1\u9001\u673a\u5236\uff0c\u800cudp\u4e00\u822c\u662f\u4e0d\u4fdd\u8bc1\u62a5\u6587\u6b63\u786e\u53d1\u9001\u548c\u63a5\u6536\u7684\uff1b\u5e94\u7528\u5c42\u5c31\u662f\u6839\u636e\u4f20\u8f93\u5c42\u7684\u7aef\u53e3\u4fe1\u606f\u8c03\u7528\u4e0d\u540c\u7684\u7a0b\u5e8f\u6765\u5904\u7406\u4f20\u8f93\u7684\u5185\u5bb9\uff0c\u7aef\u53e38080\u662fhttp\u62a5\u6587\uff0c\u7aef\u53e321\u662fftp\u62a5\u6587\u7b49\u7b49\u3002\u4e0a\u9762\u7684\u903b\u8f91\u7a0d\u663e\u590d\u6742\uff0c\u670b\u53cb\u4eec\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3\uff0c
\u7269\u7406\u5c42\u5173\u5fc3\u7684\u662f\u5982\u4f55\u628a\u7535\u6c14\u4fe1\u53f7\u53d8\u6210\u4e00\u6bb5\u62a5\u6587\uff1b\u6570\u636e\u94fe\u8def\u5c42\u5173\u5fc3\u7684\u662fmac\u5730\u5740\u3001vlan\u3001\u4f18\u5148\u7ea7\u7b49\uff1b\u7f51\u7edc\u5c42\u5173\u5fc3\u7684\u662fip\u5730\u5740\uff0c\u4e0b\u4e00\u8df3ip\uff1b\u4f20\u8f93\u5c42\u5173\u5fc3\u7684\u662f\u7aef\u53e3\u8d44\u6e90\uff1b\u5e94\u7528\u5c42\u5173\u5fc3\u7684\u662f\u62a5\u6587\u7ec4\u88c5\u3001\u89e3\u6790\u3001\u6e32\u67d3\u3001\u5b58\u50a8\u3001\u6267\u884c\u7b49\u7b49\u3002
\u76ee\u524d\u5173\u4e8etcp\/ip\u5b8c\u6574\u534f\u8bae\u6808\u7684\u4ee3\u7801\u5f88\u591a\uff0c\u5176\u4e2d\u6211\u8ba4\u4e3a\u5199\u5f97\u6bd4\u8f83\u597d\u7684\u8fd8\u662flinux\u5185\u6838\/net\/ipv4\u4e0b\u9762\u7684\u4ee3\u7801\u3002\u5982\u679c\u670b\u53cb\u4eec\u5bf9ipv6\u7684\u4ee3\u7801\u611f\u5174\u8da3\uff0c\u4e5f\u53ef\u4ee5\u770b\u770b\/net\/ipv6\u7684\u4ee3\u7801\u3002\u6863\u6848\u5982\u679c\u670b\u53cb\u4eec\u5bf9\u6574\u4e2a\u534f\u8bae\u6808\u7684\u4ee3\u7801\u7ed3\u6784\u7406\u89e3\u5f97\u4e0d\u662f\u5f88\u6e05\u695a\uff0c\u53ef\u4ee5\u53c2\u8003\u300alinux\u7f51\u7edc\u5206\u6790\u4e0e\u5f00\u53d1\u300b\u8fd9\u672c\u4e66\u3002
\u5f53\u7136\uff0c\u4f5c\u4e3a\u5e94\u7528\u5c42\uff0c\u6211\u4eec\u7684\u5176\u5b9e\u8003\u8651\u7684\u4e0d\u7528\u8fd9\u4e48\u590d\u6742\u3002\u5bf9\u4e8e\u7f51\u7edc\u7a0b\u5e8f\u7f16\u5199\u4eba\u5458\u6765\u8bb2\uff0c\u6240\u6709\u7f51\u7edc\u7684\u8d44\u6e90\u53ea\u8981\u548c\u4e00\u4e2asocket\u5173\u8054\u5728\u4e00\u8d77\u5c31\u53ef\u4ee5\u4e86\u3002\u5f53\u7136\u5728socket\u53ef\u7528\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u4e3a\u5b83\u914d\u7f6e\u7aef\u53e3\u4fe1\u606f\u548cip\u5730\u5740\u3002\u914d\u7f6e\u5b8c\u4e86\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u6162\u6162\u7b49\u5f85\u62a5\u6587\u7684\u6536\u53d1\u4e86\u3002\u6240\u4ee5\u4e00\u822c\u6765\u8bf4\uff0c\u4f5c\u4e3a\u670d\u52a1\u5668\u7aef\u53e3\u7684\u5904\u7406\u6d41\u7a0b\u662f\u8fd9\u6837\u7684\uff0c
a) \u521b\u5efasocket
b) \u7ed1\u5b9asocket\u5230\u7279\u5b9a\u7684ip\u5730\u5740
c) \u5bf9socket\u8fdb\u884c\u4fa6\u542c\u5904\u7406
d) \u63a5\u53d7socket\uff0c\u8868\u660e\u6709\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u8fde\u63a5
e) \u548c\u5ba2\u6237\u7aef\u5faa\u73af\u6536\u53d1\u62a5\u6587
f) \u5173\u95edsocket<\/p>\n\n\n\n
\u4f5c\u4e3a\u670d\u52a1\u5668\u7a0b\u5e8f\u800c\u8a00\uff0c\u5b83\u8981\u5bf9\u7279\u5b9a\u7684\u7aef\u53e3\u8fdb\u884c\u7ed1\u5b9a\u548c\u4fa6\u542c\u5904\u7406\uff0c\u8fd9\u6837\u7a0d\u663e\u590d\u6742\u3002\u4f46\u662f\u5982\u679c\u662f\u7f16\u5199\u5ba2\u6237\u7aef\u7684\u7a0b\u5e8f\uff0c\u4e00\u5207\u7684\u4e00\u5207\u5c31\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u4e86\uff0c
a) \u521b\u5efasocket
b) \u94fe\u63a5\u670d\u52a1\u5668\u7aef\u5730\u5740
c) \u548c\u670d\u52a1\u5668\u7aef\u7684socket\u6536\u53d1\u62a5\u6587<\/p>\n\n\n\n
\u4e0a\u9762\u53ea\u662f\u5bf9\u7f51\u7edc\u7f16\u7a0b\u505a\u4e86\u4e00\u4e2a\u57fa\u672c\u7684\u4ecb\u7ecd\uff0c\u4f46\u662f\u597d\u591a\u7684\u4e1c\u897f\u8fd8\u662f\u6ca1\u6709\u6d89\u53ca\u5230\uff0c\u6bd4\u5982\u8bf4\uff1a
(1) \u4ec0\u4e48\u65f6\u5019\u8be5\u4f7f\u7528udp\uff0c\u4ec0\u4e48\u65f6\u5019\u8be5\u4f7f\u7528tcp?
(2) \u5982\u4f55\u628a\u591a\u7ebf\u7a0b\u548c\u7f51\u7edc\u7f16\u7a0b\u8054\u7cfb\u5728\u4e00\u8d77?
(3) \u5982\u4f55\u628a\u591a\u8fdb\u7a0b\u548c\u7f51\u7edc\u7f16\u7a0b\u8054\u7cfb\u5728\u4e00\u8d77?
(4) \u5982\u4f55\u5229\u7528select\u51fd\u6570\u3001epoll_create\u673a\u5236\u3001\u975e\u963b\u585e\u51fd\u6570\u63d0\u9ad8socket\u7684\u5e76\u53d1\u5904\u7406\u6548\u7387?
(5) linux\u5185\u6838\u662f\u600e\u4e48\u5b9e\u73b0tcp\/ip\u534f\u8bae\u7684?
(6) \u6211\u4eec\u81ea\u5df1\u662f\u5426\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u534f\u8bae\u7684\u5904\u7406\u6d41\u7a0b\u7b49\u7b49?<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6700\u8fd1\u770b\u5230\u4e86\u4e00\u4e2a\u6bd4\u8f83\u597d\u7684\u5199linux\u4e0b\u7684C\u8bed\u8a00\u5f00\u53d1\u7684\u6587\u4ef6\uff0c\u8bb0\u5f55\u4e00\u4e0b\uff0c\u65b9\u4fbf\u4e4b\u540e\u67e5\u770b\uff0c\u6709\u5174\u8da3\u7684\u8bdd\u53ef\u4ee5\u67e5\u770b\u539f\u6587 \u539f\u6587\u94fe […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-961","post","type-post","status-publish","format-standard","hentry","category-linux"],"aioseo_notices":[],"views":311,"_links":{"self":[{"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=\/wp\/v2\/posts\/961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=961"}],"version-history":[{"count":5,"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=\/wp\/v2\/posts\/961\/revisions"}],"predecessor-version":[{"id":968,"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=\/wp\/v2\/posts\/961\/revisions\/968"}],"wp:attachment":[{"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oceansource.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}