test/elftest64.c

   1 /*
   2  *  build with:
   3  *      nasm -f elf64 elf64so.asm
   4  *      ld -shared -o elf64so.so elf64so.o
   5  * test with:
   6  *      gcc -o elf64so elftest64.c ./elf64so.so
   7  *      ./elf64so
   8  */
   9
  10 #include <stdio.h>
  11 #include <inttypes.h>
  12
  13 extern long lrotate(long, int);
  14 extern void greet_s(void);
  15 extern void greet_m(void);
  16 extern int8_t asmstr[];
  17 extern void *selfptr;
  18 extern void *textptr;
  19 extern long integer;
  20 long commvar;
  21
  22 int main(void)
  23 {
  24
  25     printf("Testing lrotate: should get 0x00400000, 0x00000001\n");
  26     printf("lrotate(0x00040000, 4) = 0x%08lx\n", lrotate(0x40000, 4));
  27     printf("lrotate(0x00040000, 46) = 0x%08lx\n", lrotate(0x40000, 46));
  28
  29     printf("This string should read `hello, world': `%s'\n", asmstr);
  30
  31     printf("&integer = %p, &commvar = %p\n", &integer, &commvar);
  32     printf("The integers here should be 1234, 1235 and 4321:\n");
  33     integer = 1234;
  34     commvar = 4321;
  35     greet_s();
  36     greet_m();
  37
  38     printf("These pointers should be equal: %p and %p\n", &greet_s, textptr);
  39
  40     printf("So should these: %p and %p\n", selfptr, &selfptr);
  41
  42     return 0;
  43 }