mirror of
https://github.com/qemu/qemu.git
synced 2024-12-11 20:53:51 +08:00
49cdaea18b
Signed-off-by: Catalin Patulea <catalinp@google.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
28 lines
582 B
C
28 lines
582 B
C
#include <asm/unistd.h>
|
|
|
|
static inline void exit(int status)
|
|
{
|
|
int __res;
|
|
__asm__ volatile ("movl %%ecx,%%ebx\n"\
|
|
"int $0x80" \
|
|
: "=a" (__res) : "0" (__NR_exit),"c" ((long)(status)));
|
|
}
|
|
|
|
static inline int write(int fd, const char * buf, int len)
|
|
{
|
|
int status;
|
|
__asm__ volatile ("pushl %%ebx\n"\
|
|
"movl %%esi,%%ebx\n"\
|
|
"int $0x80\n" \
|
|
"popl %%ebx\n"\
|
|
: "=a" (status) \
|
|
: "0" (__NR_write),"S" ((long)(fd)),"c" ((long)(buf)),"d" ((long)(len)));
|
|
return status;
|
|
}
|
|
|
|
void _start(void)
|
|
{
|
|
write(1, "Hello World\n", 12);
|
|
exit(0);
|
|
}
|