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Atmosphere/mesosphere/kernel/source/arch/arm64/start.s
2020-01-24 02:11:24 -08:00

48 lines
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2 KiB
ArmAsm

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* For some reason GAS doesn't know about it, even with .cpu cortex-a57 */
#define cpuactlr_el1 s3_1_c15_c2_0
#define cpuectlr_el1 s3_1_c15_c2_1
.section .crt0.text.start, "ax", %progbits
.global _start
_start:
/* TODO */
b _start
.word (__metadata_begin - _start)
__metadata_begin:
.ascii "MSS0" /* Magic */
.word 0 /* KInitArguments */
.word 0 /* INI1 base address. */
.word 0 /* Kernel Loader base address. */
__metadata_kernel_layout:
.word _start - _start /* rx_offset */
.word __rodata_start - _start /* rx_end_offset */
.word __rodata_start - _start /* ro_offset */
.word __data_start - _start /* ro_end_offset */
.word __data_start - _start /* rw_offset */
.word __bss_start__ - _start /* rw_end_offset */
.word __bss_start__ - _start /* bss_offset */
.word __bss_end__ - _start /* bss_end_offset */
.word __end__ - _start /* ini_load_offset */
.word _DYNAMIC - _start /* dynamic_offset */
.word __init_array_start - _start /* init_array_offset */
.word __init_array_end - _start /* init_array_end_offset */
.if (. - __metadata_begin) != 0x40
.error "Incorrect Mesosphere Metadata"
.endif