Code stub

This commit is contained in:
Alex
2022-10-13 09:20:08 +03:00
parent da269b5c6d
commit 6cf44540fb
12 changed files with 203 additions and 14 deletions

44
UEFI/Makefile Normal file
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include ../../Makefile.conf
NAME=efi-loader.bin
CC = gcc
LD = ld
OBJCOPY = objcopy
C_SOURCES = $(shell find ./src -type f -name '*.c')
OBJ = $(C_SOURCES:.c=.o)
GNUEFI_RELEASE_VERSION=3.0.14
gnuefi:
wget https://archive.org/download/gnu-efi-$(GNUEFI_RELEASE_VERSION).tar/gnu-efi-$(GNUEFI_RELEASE_VERSION).tar.bz2
tar -xf gnu-efi-$(GNUEFI_RELEASE_VERSION).tar.bz2
rm gnu-efi-$(GNUEFI_RELEASE_VERSION).tar.bz2
mv ./gnu-efi-$(GNUEFI_RELEASE_VERSION) ./gnu-efi
mkdir -p include
cp -a ./gnu-efi/inc/. ./include
make -C gnu-efi
prepare: gnuefi
build: $(NAME)
$(NAME): BOOTX64
dd if=/dev/zero of=$(NAME) bs=512 count=93750
mformat -i $(NAME) ::
mmd -i $(NAME) ::/EFI
mmd -i $(NAME) ::/EFI/BOOT
mcopy -i $(NAME) BOOTX64.EFI ::/EFI/BOOT
BOOTX64: $(OBJ)
$(LD) -shared -Bsymbolic -Lgnu-efi/x86_64/lib -Lgnu-efi/x86_64/gnuefi -Tgnu-efi/gnuefi/elf_x86_64_efi.lds gnu-efi/x86_64/gnuefi/crt0-efi-x86_64.o $(OBJ) -o tmp.so -lgnuefi -lefi
$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .rel.* -j .rela.* -j .reloc --target efi-app-x86_64 --subsystem=10 tmp.so BOOTX64.EFI
rm tmp.so
%.o: %.c
$(info Compiling $<)
$(CC) -Ignu-efi/inc -Ignu-efi/inc/x86_64 -Ignu-efi/inc/protocol -fpic -ffreestanding -fno-stack-protector -fno-stack-check -fshort-wchar -mno-red-zone -maccumulate-outgoing-args -c $< -o $@
clean:
rm -f $(NAME) $(OBJ) BOOTX64.EFI

8
UEFI/src/FileLoader.c Normal file
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#include "FileLoader.h"
// https://wiki.osdev.org/Loading_files_under_UEFI
EFI_FILE *LoadFile(EFI_FILE *Directory, CHAR16 *Path, EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
{
return NULL;
}

5
UEFI/src/FileLoader.h Normal file
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#pragma once
#include <efi.h>
#include <efilib.h>
EFI_FILE *LoadFile(EFI_FILE *Directory, CHAR16 *Path, EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable);

23
UEFI/src/Lynx.c Normal file
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#include <efi.h>
#include <efilib.h>
#include "FileLoader.h"
EFI_STATUS EFIAPI efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
{
InitializeLib(ImageHandle, SystemTable);
SystemTable->BootServices->SetWatchdogTimer(0, 0, 0, NULL);
Print(L"Lynx Bootloader © EnderIce2 2022\n");
EFI_FILE *Kernel = LoadFile(NULL, L"kernel.fsys", ImageHandle, SystemTable);
if (Kernel == NULL)
{
Print(L"Kernel not found\n");
while (1)
asm("hlt");
}
while (1)
asm("hlt");
return EFI_SUCCESS;
}

0
UEFI/src/Paging.c Normal file
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0
UEFI/src/VirtualMemory.c Normal file
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