int my_test(int a, int b);<\/code><\/pre>\n\n\n\nmyTest.c :<\/strong><\/p>\n\n\n\n#include "myTest.h"\nint my_test(int a, int b) {\n return a + b;\n}<\/code><\/pre>\n\n\n\nmyMath.h :<\/strong><\/p>\n\n\n\nint add(int a, int b);<\/code><\/pre>\n\n\n\nmyMath.c:<\/strong><\/p>\n\n\n\n#include "myMath.h"\n#include "myTest.h"\nint add(int a, int b) {\n return my_test(a,b);\n}<\/code><\/pre>\n\n\n\nmain.c :<\/strong><\/p>\n\n\n\n#include <stdio.h>\n#include "myMath.h"\nint main()\n{\n int a = 3, b = 5;\n printf("a+b=%d\\n", add(3, 5));\n return 0;\n}<\/code><\/pre>\n\n\n\n\u4ee3\u7801\u5df2\u7ecf\u5199\u597d\uff0c\u5148\u6267\u884c\u4e00\u4e0b\u547d\u4ee4\u7f16\u8bd1\u51fa .o \u540e\u7f00\u7684\u6587\u4ef6\u3002<\/p>\n\n\n\n
gcc -c myMath.c -o myMath.o\ngcc -c myTest.c -o myTest.o\ngcc -c main.c -o main.o<\/code><\/pre>\n\n\n\n- -fPIC\uff1a\u4e5f\u53ef\u4ee5\u5199\u6210 -fpic\uff0c\u529f\u80fd\u662f\u4ee4 GCC \u7f16\u8bd1\u5668\u751f\u6210\u52a8\u6001\u94fe\u63a5\u5e93\u65f6\uff0c\u7528\u76f8\u5bf9\u5730\u5740\u8868\u793a\u5e93\u4e2d\u5404\u4e2a\u51fd\u6570\u548c\u53d8\u91cf\u7684\u5b58\u50a8\u4f4d\u7f6e\u3002\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\uff0c\u65e0\u8bba\u52a8\u6001\u94fe\u63a5\u5e93\u88ab\u52a0\u8f7d\u5230\u5185\u5b58\u7684\u4ec0\u4e48\u4f4d\u7f6e\uff0c\u90fd\u53ef\u4ee5\u88ab\u591a\u4e2a\u7a0b\u5e8f\uff08\u8fdb\u7a0b\uff09\u540c\u65f6\u8c03\u7528\uff1b<\/li><\/ul>\n\n\n\n
\u8981\u7f16\u8bd1 libmyMath.so \u52a8\u6001\u5e93 \uff0c\u5e38\u89c4\u7684\u505a\u6cd5\u662f gcc -c -fPIC myMath.c -o myMath.o<\/code> \uff0c\u628a C \u4ee3\u7801\u7f16\u8bd1\u6210 object \u6587\u4ef6\uff0c\u7136\u540e\u7528 gcc -shared myMath.o -o libmyMath.so<\/code> \u628a object \u6587\u4ef6\u8f6c\u6210 .so \u52a8\u6001\u5e93\u6587\u4ef6\u3002\u4f46\u6211\u4eec\u73b0\u5728\u6709\u4e00\u4e2a\u5d4c\u5957\u5e93 myTest \uff0c\u800c\u4e14\u4e0d\u60f3\u66b4\u9732\u7ed9\u522b\u4eba\uff0c\u8fd9\u65f6\u5019\u5e94\u8be5\u5982\u4f55\u7f16\u8bd1\u3002<\/p>\n\n\n\n\u5176\u5b9e\u8ddf\u9759\u6001\u5e93\u7684\u7f16\u8bd1\u5dee\u4e0d\u591a\uff0c\u628a myTest.o \u6587\u4ef6\u52a0\u8fdb\u53bb\u5c31\u884c\uff0cgcc -shared myTest.o myMath.o -o libmyMath.so<\/code>\u3002\u6211\u4eec\u53ef\u4ee5\u7528\u4ee5\u4e0b\u4e24\u4e2a\u4e0d\u540c\u7684\u547d\u4ee4\u770b\u4e00\u4e0b\u751f\u6210\u7684 libmyMath.so \u6709\u4ec0\u4e48\u533a\u522b\u3002<\/p>\n\n\n\n\u7b2c\u4e00\u4e2a\u547d\u4ee4\uff1agcc -shared myMath.o -o libmymath_1.so<\/code><\/p>\n\n\n\n\u7b2c\u4e8c\u4e2a\u547d\u4ee4\uff1agcc -shared myMath.o myTest.o -o libmymath_2.so<\/code><\/p>\n\n\n\n\u7b2c\u4e00\u4e2a\u547d\u4ee4\u662f\u6ca1\u52a0 myTest.o \u7684\u3002<\/p>\n\n\n\n![\"\"](\"\/wp-content\/uploads\/2022\/02\/so-1-1.png\")
<\/figure>\n\n\n\n\u6bd4\u5bf9 libmymath-1.so \u8ddf myMath.o \u5e76\u6ca1\u6709\u53d1\u73b0\u4ec0\u4e48\u76f8\u540c\u7684\u5730\u65b9\u3002\u8df3\u8fc7\u4e0d\u7ba1\u3002\u5982\u4e0b\u56fe\uff1a<\/p>\n\n\n\n![\"\"](\"\/wp-content\/uploads\/2022\/02\/so-1-2.png\")
<\/figure>\n\n\n\n\u6b64\u65f6\uff0c myTest.o \u8ddf myMath.o \u5df2\u7ecf\u6ca1\u7528\u4e86\uff0c\u53ef\u4ee5\u5220\u9664\uff0c\u53ea\u9700\u8981\u628a .so \u7ed9\u522b\u4eba\u7528\u5c31\u884c\uff0c\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u751f\u6210 main \u53ef\u6267\u884c\u6587\u4ef6\u3002<\/p>\n\n\n\n
#\u7b2c\u4e00\u79cd\u65b9\u5f0f\ngcc main.o libmymath_2.so -o main<\/code><\/pre>\n\n\n\n#\u7b2c\u4e8c\u79cd\u65b9\u5f0f\ngcc main.o -o main -lmymath_2 -L.<\/code><\/pre>\n\n\n\n![\"\"](\"\/wp-content\/uploads\/2022\/02\/so-1-3.png\")
<\/figure>\n\n\n\n\u63d0\u793a\u627e\u4e0d\u5230 so \u6587\u4ef6\uff0c\u628aso \u8d4b\u503c\u5230\u6807\u51c6\u5e93\u76ee\u5f55\u5373\u53ef\u3002<\/p>\n\n\n\n
\u76f8\u5173\u9605\u8bfb\uff1a<\/strong><\/p>\n\n\n\n