1b2441318SGreg Kroah-Hartman/* SPDX-License-Identifier: GPL-2.0 */ 21da177e4SLinus Torvalds/* 3f30c2269SUwe Zeisberger * arch/alpha/lib/dbg_stackkill.S 41da177e4SLinus Torvalds * Contributed by Richard Henderson (rth@cygnus.com) 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Clobber the balance of the kernel stack, hoping to catch 71da177e4SLinus Torvalds * uninitialized local variables in the act. 81da177e4SLinus Torvalds */ 91da177e4SLinus Torvalds 10e2d5df93SSam Ravnborg#include <asm/asm-offsets.h> 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds .text 131da177e4SLinus Torvalds .set noat 141da177e4SLinus Torvalds 151da177e4SLinus Torvalds .align 5 161da177e4SLinus Torvalds .globl _mcount 171da177e4SLinus Torvalds .ent _mcount 181da177e4SLinus Torvalds_mcount: 191da177e4SLinus Torvalds .frame $30, 0, $28, 0 201da177e4SLinus Torvalds .prologue 0 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds ldi $0, 0xdeadbeef 231da177e4SLinus Torvalds lda $2, -STACK_SIZE 241da177e4SLinus Torvalds sll $0, 32, $1 251da177e4SLinus Torvalds and $30, $2, $2 261da177e4SLinus Torvalds or $0, $1, $0 271da177e4SLinus Torvalds lda $2, TASK_SIZE($2) 281da177e4SLinus Torvalds cmpult $2, $30, $1 291da177e4SLinus Torvalds beq $1, 2f 301da177e4SLinus Torvalds1: stq $0, 0($2) 311da177e4SLinus Torvalds addq $2, 8, $2 321da177e4SLinus Torvalds cmpult $2, $30, $1 331da177e4SLinus Torvalds bne $1, 1b 341da177e4SLinus Torvalds2: ret ($28) 351da177e4SLinus Torvalds 361da177e4SLinus Torvalds .end _mcount 37