diff options
Diffstat (limited to 'kernel/src')
| -rw-r--r-- | kernel/src/boot.asm | 8 | ||||
| -rw-r--r-- | kernel/src/grub.cfg | 7 | ||||
| -rw-r--r-- | kernel/src/linker.ld | 16 | ||||
| -rw-r--r-- | kernel/src/multiboot_header.asm | 15 |
4 files changed, 46 insertions, 0 deletions
diff --git a/kernel/src/boot.asm b/kernel/src/boot.asm new file mode 100644 index 0000000..839457e --- /dev/null +++ b/kernel/src/boot.asm @@ -0,0 +1,8 @@ +global start + +section .text +bits 32 +start: + ; print 'OK' + mov dword [0xb8000], 0x2f4b2f4f + hlt diff --git a/kernel/src/grub.cfg b/kernel/src/grub.cfg new file mode 100644 index 0000000..ba8f8e8 --- /dev/null +++ b/kernel/src/grub.cfg @@ -0,0 +1,7 @@ +set timeout=0 +set default=0 + +menuentry "uff-os" { + multiboot2 /boot/kernel.bin + boot +} diff --git a/kernel/src/linker.ld b/kernel/src/linker.ld new file mode 100644 index 0000000..cef8809 --- /dev/null +++ b/kernel/src/linker.ld @@ -0,0 +1,16 @@ +ENTRY(start) + +SECTIONS { + . = 1M; + + .boot : + { + /* ensure that the multiboot heater is at the beginning */ + *(.multiboot_header) + } + + .text : + { + *(.text) + } +} diff --git a/kernel/src/multiboot_header.asm b/kernel/src/multiboot_header.asm new file mode 100644 index 0000000..9c9d859 --- /dev/null +++ b/kernel/src/multiboot_header.asm @@ -0,0 +1,15 @@ +section .multiboot_header +header_start: + dd 0xe85250d6 ; magic number (multiboot 2) + dd 0 ; architecture 0 + dd header_end - header_start ; header length + ; checksum + dd 0x100000000 - (0xe85250d6 + 0 + (header_end - header_start)) + + ; insert optional multiboot tags here + + ; required end tag + dw 0 ; type + dw 0 ; flags + dd 8 ; size +header_end: |