| Gary Morrison | 3d7f654 | 2021-01-27 13:08:47 -0600 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2021, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch.h> |
| 8 | #include <asm_macros.S> |
| 9 | #include <common/debug.h> |
| 10 | |
| 11 | .globl el2_panic |
| 12 | |
| 13 | /*********************************************************** |
| Govindraj Raja | a796b1b | 2023-01-16 17:35:07 +0000 | [diff] [blame^] | 14 | * The common implementation of el3_panic for all BL stages |
| Gary Morrison | 3d7f654 | 2021-01-27 13:08:47 -0600 | [diff] [blame] | 15 | ***********************************************************/ |
| 16 | |
| 17 | .section .rodata.panic_str, "aS" |
| 18 | panic_msg: .asciz "PANIC at PC : 0x" |
| 19 | |
| 20 | /* |
| 21 | * el2_panic will be redefined by the |
| 22 | * crash reporting mechanism (if enabled) |
| 23 | */ |
| 24 | el2_panic: |
| 25 | mov x6, x30 |
| 26 | bl plat_crash_console_init |
| 27 | |
| 28 | /* Check if the console is initialized */ |
| 29 | cbz x0, _panic_handler |
| 30 | |
| 31 | /* The console is initialized */ |
| 32 | adr x4, panic_msg |
| 33 | bl asm_print_str |
| 34 | mov x4, x6 |
| 35 | |
| 36 | /* The panic location is lr -4 */ |
| 37 | sub x4, x4, #4 |
| 38 | bl asm_print_hex |
| 39 | |
| 40 | bl plat_crash_console_flush |
| 41 | |
| 42 | _panic_handler: |
| 43 | /* Pass to plat_panic_handler the address from where el2_panic was |
| johpow01 | 0033b25 | 2021-10-11 14:51:11 -0500 | [diff] [blame] | 44 | * called, not the address of the call from el2_panic. |
| 45 | */ |
| Gary Morrison | 3d7f654 | 2021-01-27 13:08:47 -0600 | [diff] [blame] | 46 | mov x30, x6 |
| 47 | b plat_panic_handler |