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#include <os.h>
/* Offsets in start_info structure */
#define SHARED_INFO 4
#define MOD_START 12
#define MOD_LEN 16
#define ENTRY(X) .globl X ; X :
.globl _start
_start:
cld
lss stack_start,%esp
/* Copy any module somewhere safe before it's clobbered by BSS. */
mov MOD_LEN(%esi),%ecx
shr $2,%ecx
jz 2f /* bail from copy loop if no module */
mov $_end,%edi
add MOD_LEN(%esi),%edi
mov MOD_START(%esi),%eax
add MOD_LEN(%esi),%eax
1: sub $4,%eax
sub $4,%edi
mov (%eax),%ebx
mov %ebx,(%edi)
loop 1b
mov %edi,MOD_START(%esi)
/* Clear BSS first so that there are no surprises... */
2: xorl %eax,%eax
movl $__bss_start,%edi
movl $_end,%ecx
subl %edi,%ecx
rep stosb
push %esi
call start_kernel
stack_start:
.long stack+8192, __KERNEL_DS
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