如何获取当前进程对应之静态映像文件的绝对路径

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  如何获取当前进程对应之静态映像文件的绝对路径

这是一个x86/Linux Kernel 2.4.20-8系统中利用proc获取绝对路径的例子

#include
#include
#include

#define PATH_MAX 1024
int
main(int argc, char **argv)
{
        char    buf[PATH_MAX];
        int     count;

        count = readlink("/proc/self/exe",buf,PATH_MAX);

        if( count < 0 || count > PATH_MAX)
        {
                printf(" failed \n");
                exit(1);
        }
        buf[count] = '\0';
        printf(" %s's path is %s \n", argv[0], buf);

        exit(0);
}

编译与执行
]# gcc proself.c
]# /home/a.out
 /home/a.out's path is /home/a.out