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- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * arch/alpha/lib/dbg_stackkill.S
- * Contributed by Richard Henderson ([email protected])
- *
- * 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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