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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>
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30 changed files with 1207 additions and 181 deletions
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@ -2,20 +2,24 @@ timeout=1
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menuentry 'SerenityOS (normal)' {
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root=hd0,2
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multiboot /boot/Kernel root=/dev/hda2
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multiboot /boot/Bootloader root=/dev/hda2
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module /boot/Kernel
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}
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menuentry 'SerenityOS (text mode)' {
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root=hd0,2
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multiboot /boot/Kernel boot_mode=no-fbdev root=/dev/hda2
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multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda2
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module /boot/Kernel
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}
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menuentry 'SerenityOS (No ACPI)' {
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root=hd0,2
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multiboot /boot/Kernel root=/dev/hda2 acpi=off
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multiboot /boot/Bootloader root=/dev/hda2 acpi=off
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module /boot/Kernel
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}
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menuentry 'SerenityOS (with serial debug)' {
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root=hd0,2
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multiboot /boot/Kernel serial_debug root=/dev/hda2
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root=hd0,2
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multiboot /boot/Bootloader serial_debug root=/dev/hda2
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module /boot/Kernel
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}
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