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Kernel: Introduce basic pre-kernel environment

This implements a simple bootloader that is capable of loading ELF64
kernel images. It does this by using QEMU/GRUB to load the kernel image
from disk and pass it to our bootloader as a Multiboot module.

The bootloader then parses the ELF image and sets it up appropriately.
The kernel's entry point is a C++ function with architecture-native
code.

Co-authored-by: Liav A <liavalb@gmail.com>
This commit is contained in:
Gunnar Beutner 2021-07-18 14:47:32 +02:00 committed by Andreas Kling
parent 357ddd393e
commit 7e94b090fe
30 changed files with 1207 additions and 181 deletions

View file

@ -88,7 +88,7 @@
# define PAGE_SIZE sysconf(_SC_PAGESIZE)
#endif
#ifndef _BOOTLOADER
#ifdef __cplusplus
ALWAYS_INLINE int count_trailing_zeroes_32(unsigned int val)
{
# if defined(__GNUC__) || defined(__clang__)