vers6.c

来自「GNU binutils是GNU交叉工具链中的一个源码包」· C语言 代码 · 共 26 行

/*
 * Testcase to make sure that if we externally reference a versioned symbol
 * that we always get the right one.
 */
#include <stdio.h>

extern int foo_1();
extern int foo_2();
extern int foo_3();
extern int foo_4();

int
main()
{
  printf("Expect 4,    get %d\n", foo_1());
  printf("Expect 13,   get %d\n", foo_2());
  printf("Expect 103,  get %d\n", foo_3());
  printf("Expect 1003, get %d\n", foo_4());
  return 0;
}

__asm__(".symver foo_1,show_foo@");
__asm__(".symver foo_2,show_foo@VERS_1.1");
__asm__(".symver foo_3,show_foo@VERS_1.2");
__asm__(".symver foo_4,show_foo@VERS_2.0");