| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * arch/alpha/lib/dbg_current.S |
| 4 | * Contributed by Richard |
| 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 |