1b2441318SGreg Kroah-Hartman/* SPDX-License-Identifier: GPL-2.0 */ 21da177e4SLinus Torvalds/* 3f30c2269SUwe Zeisberger * arch/alpha/lib/dbg_stackcheck.S 41da177e4SLinus Torvalds * Contributed by Richard Henderson (rth@tamu.edu) 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Verify that we have not overflowed the stack. Oops if we have. 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 9e2d5df93SSam Ravnborg#include <asm/asm-offsets.h> 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds .text 121da177e4SLinus Torvalds .set noat 131da177e4SLinus Torvalds 141da177e4SLinus Torvalds .align 3 151da177e4SLinus Torvalds .globl _mcount 161da177e4SLinus Torvalds .ent _mcount 171da177e4SLinus Torvalds_mcount: 181da177e4SLinus Torvalds .frame $30, 0, $28, 0 191da177e4SLinus Torvalds .prologue 0 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds lda $0, TASK_SIZE($8) 221da177e4SLinus Torvalds cmpult $30, $0, $0 231da177e4SLinus Torvalds bne $0, 1f 241da177e4SLinus Torvalds ret ($28) 251da177e4SLinus Torvalds1: stq $31, -8($31) # oops me, damn it. 261da177e4SLinus Torvalds br 1b 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds .end _mcount 29