| 1 | #include <asm/unistd.h> |
| 2 | |
| 3 | static inline void exit(int status) |
| 4 | { |
| 5 | int __res; |
| 6 | __asm__ volatile ("movl %%ecx,%%ebx\n"\ |
| 7 | "int $0x80" \ |
| 8 | : "=a" (__res) : "0" (__NR_exit),"c" ((long)(status))); |
| 9 | } |
| 10 | |
| 11 | static inline int write(int fd, const char * buf, int len) |
| 12 | { |
| 13 | int status; |
| 14 | __asm__ volatile ("pushl %%ebx\n"\ |
| 15 | "movl %%esi,%%ebx\n"\ |
| 16 | "int $0x80\n" \ |
| 17 | "popl %%ebx\n"\ |
| 18 | : "=a" (status) \ |
| 19 | : "0" (__NR_write),"S" ((long)(fd)),"c" ((long)(buf)),"d" ((long)(len))); |
| 20 | return status; |
| 21 | } |
| 22 | |
| 23 | void _start(void); |
| 24 | void _start(void) |
| 25 | { |
| 26 | write(1, "Hello World\n", 12); |
| 27 | exit(0); |
| 28 | } |