Piraterna/aurix
2
1
Fork 2
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added build type detection, simplified legacy BIOS booting on x86_64

Browse source
This commit is contained in:
Jozef Nagy 2025-01-25 19:53:01 +01:00
parent 0236209e95
commit 1fc97f9c5f
Signed by untrusted user who does not match committer: crz
GPG key ID: 459A4811CEAC7068
18 changed files with 298 additions and 107 deletions
Download patch file Download diff file Expand all files Collapse all files

0
boot/arch/aarch64/common/.gitkeep Normal file
View file

69
boot/arch/aarch64/common/boot.S
View file

@ -1,69 +0,0 @@
/*********************************************************************************/
/* Module Name: boot.S */
/* Project: AurixOS */
/* */
/* Copyright (c) 2024-2025 Jozef Nagy */
/* */
/* This source is subject to the MIT License. */
/* See License.txt in the root of this repository. */
/* All other rights reserved. */
/* */
/* 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. */
/*********************************************************************************/
.section ".text.boot"
.global _start
_start:
//
// hello, am i on the main core?
//
mrs x1, mpidr_el1
and x1, x1, #3
cbz x1, 2f
//
// no? alright then, sorry for interrupting. *leaves*
//
1:
wfe
b 1b
//
// ok cool now execute this huge pile of horrible code
// thanks :>
//
2:
//
// let the stack live below our code
//
ldr x1, =_start
mov sp, x1
//
// no junk allowed in .bss!
//
ldr x1, =__bss_start
ldr w2, =__bss_size
3: cbz w2, 4f
str xzr, [x1], #8
sub w2, w2, #1
cbnz w2, 3b
4:
bl menu_main
//
// crazy? i was crazy once.
// they locked me in a room. a rubber room. a rubber room with rats.
// and rats make me crazy.
// (bootloader returned, just halt the whole thing)
//
b 1b

2
boot/arch/aarch64/linker.ld
View file

@ -54,4 +54,4 @@ SECTIONS
}
}
/*__bss_size = (__bss_end - __bss_start) >> 3;*/
__bss_size = (__bss_end - __bss_start) >> 3;