Linux 工具
❑ GCC: The GNU Compiler Collection, containing the GNU C compiler
❑ G++: A C++ compiler, included as part of GCC
❑ GDB: A source code–level debugger
❑ GNU make: A version of UNIX make
❑ Bison: A parser generator compatible with UNIX yacc
❑ bash: A command shell
❑ GNU Emacs: A text editor and environment
创建.o文件
$ gcc -c bill.c fred.c
$ ls *.o
bill.o fred.o
建一个头文件
/*
This is lib.h. It declares the functions fred and bill for users
*/
void bill(char *);
void fred(int);
使用lib.h
#include “lib.h”
int main()
{
bill(“Hello World”);
exit(0);
}
创建.a静态库
$ ar crv libfoo.a bill.o fred.o
a - bill.o
a - fred.o
$ ranlib libfoo.a
编译文件
$ gcc –o program program.o –L. –lfoo
创建动态库
gcc -shared -Wl,-soname,your_soname -o library_name file_list library_list
例子
gcc -fPIC -g -c -Wall a.c
gcc -fPIC -g -c -Wall b.c
gcc -shared -Wl,-soname,libmystuff.so.1 -o libmystuff.so.1.0.1 a.o b.o -lc
安装动态库
ldconfig -n directory_with_shared_libraries
export LD_LIBRARY_PATH=/usr/local/my_lib:$LD_LIBRARY_PATH
