1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * arch/alpha/lib/dbg_current.S
4  * Contributed by Richard Henderson (rth@cygnus.com)
5  *
6  * Trap if we find current not correct.
7  */
8 
9 #include <asm/pal.h>
10 
11 	.text
12 	.set noat
13 
14 	.globl _mcount
15 	.ent _mcount
16 _mcount:
17 	.frame $30, 0, $28, 0
18 	.prologue 0
19 
20 	lda	$0, -0x4000($30)
21 	cmpult	$8, $30, $1
22 	cmpule	$0, $30, $2
23 	and	$1, $2, $3
24 	bne	$3, 1f
25 
26 	call_pal PAL_bugchk
27 
28 1:	ret	$31, ($28), 1
29 
30 	.end _mcount
31