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36 lines
614 B
36 lines
614 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* arch/alpha/lib/dbg_stackkill.S |
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* Contributed by Richard Henderson (rth@cygnus.com) |
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* |
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* Clobber the balance of the kernel stack, hoping to catch |
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* uninitialized local variables in the act. |
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*/ |
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#include <asm/asm-offsets.h> |
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.text |
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.set noat |
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.align 5 |
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.globl _mcount |
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.ent _mcount |
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_mcount: |
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.frame $30, 0, $28, 0 |
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.prologue 0 |
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ldi $0, 0xdeadbeef |
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lda $2, -STACK_SIZE |
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sll $0, 32, $1 |
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and $30, $2, $2 |
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or $0, $1, $0 |
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lda $2, TASK_SIZE($2) |
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cmpult $2, $30, $1 |
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beq $1, 2f |
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1: stq $0, 0($2) |
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addq $2, 8, $2 |
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cmpult $2, $30, $1 |
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bne $1, 1b |
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2: ret ($28) |
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.end _mcount
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