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| author | Lukas Oesch <lukas.oesch@ost.ch> | 2026-06-10 10:40:46 +0200 |
|---|---|---|
| committer | Lukas Oesch <lukas.oesch@ost.ch> | 2026-06-10 10:40:46 +0200 |
| commit | 33abd5cf264cb9e34121082105b0bc17b3cf7a36 (patch) | |
| tree | 36b15d53fea04f4f9d9af817100f7ad013bd9b5c /arch/x86_64/src/boot/entry64.s | |
| parent | d01caf1c4aef3c89c68b9d1cc9fe56445f0860b5 (diff) | |
| parent | 7e27130c342b7299a1d2188a7192a7f17b5ac2ad (diff) | |
| download | kernel-33abd5cf264cb9e34121082105b0bc17b3cf7a36.tar.xz kernel-33abd5cf264cb9e34121082105b0bc17b3cf7a36.zip | |
Merge of BA-FS26 branch into develop
See merge request teachos/kernel!49
Diffstat (limited to 'arch/x86_64/src/boot/entry64.s')
| -rw-r--r-- | arch/x86_64/src/boot/entry64.s | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/arch/x86_64/src/boot/entry64.s b/arch/x86_64/src/boot/entry64.s deleted file mode 100644 index 29fb778..0000000 --- a/arch/x86_64/src/boot/entry64.s +++ /dev/null @@ -1,62 +0,0 @@ -.section .stack, "aw", @nobits - -.align 16 -.global stack_top -stack_bottom: .skip 1 << 20 -stack_top: -stack_size = stack_top - stack_bottom - -.section .bss, "aw", @nobits - -//! A structure containing information gathered during the bootstrap process. -//! Expected layout (as described by teachos::boot::information): -//! -//! struct -//! { -//! multiboot2::information_view const * mbi; -//! std::size_t vga_buffer_index; -//! } -.global bootstrap_information -bootstrap_information: .skip 16 - -.section .boot_text, "ax", @progbits -.code64 - -.global _entry64 -_entry64: - mov $global_descriptor_table_data, %rax - mov %rax, %ss - mov %rax, %ds - mov %rax, %es - mov %rax, %fs - mov %rax, %gs - - mov $stack_top, %rsp - mov %rsp, %rbp - - mov multiboot_information_pointer, %rax - or $TEACHOS_VMA, %rax - mov vga_buffer_pointer, %rdx - sub $0xb8000, %rdx - mov %rax, (bootstrap_information) - mov %rdx, (bootstrap_information + 8) - - call invoke_global_constructors - - xor %rax, %rax - mov %rax, %rbp - mov %rax, %rdx - mov %rax, %rsi - - mov $stack_size, %rcx - shr $3, %rcx - lea (stack_bottom), %rdi - rep stosq - - mov %rax, %rdi - - call main - -1: - hlt - jmp 1b |