/* * test source file for assembling to ELF * build with: * nasm -f elf elftest.asm * gcc -o elftest elftest.c elftest.o * (assuming your gcc is ELF) */ #include extern int lrotate(long, int); extern void greet(void); extern char asmstr[]; extern void *selfptr; extern void *textptr; extern int integer, commvar; int main(void) { printf("Testing lrotate: should get 0x00400000, 0x00000001\n"); printf("lrotate(0x00040000, 4) = 0x%08lx\n", lrotate(0x40000,4)); printf("lrotate(0x00040000, 14) = 0x%08lx\n", lrotate(0x40000,14)); printf("This string should read `hello, world': `%s'\n", asmstr); printf("The integers here should be 1234, 1235 and 4321:\n"); integer = 1234; commvar = 4321; greet(); printf("These pointers should be equal: %p and %p\n", &greet, textptr); printf("So should these: %p and %p\n", selfptr, &selfptr); }