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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [alpha/] [lib/] [stackkill.S] - Rev 1275

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/*
 * arch/alpha/lib/killstack.S
 * Contributed by Richard Henderson (rth@cygnus.com)
 *
 * Clobber the balance of the kernel stack, hoping to catch
 * uninitialized local variables in the act.
 */

#include <asm/asm_offsets.h>

        .text
        .set noat

        .align 5
        .globl _mcount
        .ent _mcount
_mcount:
        .frame $30, 0, $28, 0
        .prologue 0

        ldi     $0, 0xdeadbeef
        lda     $2, -STACK_SIZE
        sll     $0, 32, $1
        and     $30, $2, $2
        or      $0, $1, $0
        lda     $2, TASK_SIZE($2)
        cmpult  $2, $30, $1
        beq     $1, 2f
1:      stq     $0, 0($2)
        addq    $2, 8, $2
        cmpult  $2, $30, $1
        bne     $1, 1b
2:      ret     ($28)

        .end _mcount

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