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发信人: GyeaonWoo (柏林恋人), 信区: Linux
标  题: Linus's Linux--mm/page.s
发信站: 荔园晨风BBS站 (Mon Aug 25 20:18:10 2003), 站内信件

/*
* page.s contains the low-level page-exception code.
* the real work is done in mm.c
*/

.globl _page_fault

_page_fault:
        xchgl %eax,(%esp)
        pushl %ecx
        pushl %edx
        push %ds
        push %es
        push %fs
        movl $0x10,%edx
        mov %dx,%ds
        mov %dx,%es
        mov %dx,%fs
        movl %cr2,%edx
        pushl %edx
        pushl %eax
        testl $1,%eax
        jne 1f
        call _do_no_page
        jmp 2f
1:      call _do_wp_page
2:      addl $8,%esp
        pop %fs
        pop %es
        pop %ds
        popl %edx
        popl %ecx
        popl %eax
        iret

--
we are all just prisoners here of our own device
Last thing I remember I was running for the door
I had to find the passage back to the place I was before
Relax said the night man We are programmed to receive
You can check out any time you like but you can never leave

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