| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Permission is hereby granted, free of charge, to any person |
| * obtaining a copy of this software and associated documentation |
| * files (the "Software"), to deal in the Software without |
| * restriction, including without limitation the rights to use, copy, |
| * modify, merge, publish, distribute, sublicense, and/or sell copies |
| * of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| .text |
| |
| .globl _start |
| _start: |
| /* Set exception vector base */ |
| adr x0, _start |
| msr vbar_el2, x0 |
| |
| /* Setup stack */ |
| adr x0, stack |
| mov sp, x0 |
| |
| /* Jump to c-code */ |
| bl boot |
| /* fall-through */ |
| |
| error: |
| mov x0, #0x18 |
| adr x1, exit_params |
| /* fall-through */ |
| |
| .globl semihosting |
| semihosting: |
| hlt 0xf000 |
| ret |
| |
| exit_params: |
| .quad 0x20026 /* ADP_Stopped_ApplicationExit */ |
| .quad 2 /* exit code */ |
| |
| .globl trusty_idle |
| trusty_idle: |
| wfi |
| ret |
| |
| /* |
| * Catch exceptions (except sync-sp_el0 as we don't use that mode and it would |
| * jump to our entry point) and exit in case there is a bug. |
| */ |
| .macro exception, addr |
| .org \addr |
| b error |
| .endm |
| |
| exception 0x080 |
| exception 0x100 |
| exception 0x180 |
| exception 0x200 |
| exception 0x280 |
| exception 0x300 |
| exception 0x380 |
| exception 0x400 |
| exception 0x480 |
| exception 0x500 |
| exception 0x580 |
| exception 0x600 |
| exception 0x680 |
| exception 0x700 |
| exception 0x780 |
| |
| |
| .data |
| .space 4096 |
| stack: |
