parent
d6b01a0ac5
commit
1b4d5fb6a4
@ -1 +1,5 @@
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.vscode/settings.json
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**/a.out
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mkramfs/ramfs.img
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mkramfs/mkramfs
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FAT/
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@ -0,0 +1,30 @@
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#include "elf.h"
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#include "text.h"
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#include <Library/BaseMemoryLib.h>
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void run(char *elfdata) {
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if (elfdata[EI_CLASS] == ELFCLASS32) {
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Elf32_Ehdr elf32header;
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CopyMem(&elf32header, elfdata, sizeof(elf32header));
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if (!IS_ELF(elf32header)) {
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print("This is not ELF file!");
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}
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if (elf32header.e_ident[EI_OSABI] != ELFOSABI_LINUX &&
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elf32header.e_ident[EI_OSABI] != ELFOSABI_NONE) {
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print("This ELF file is not valid OS ABI!");
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}
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if (elf32header.e_machine != EM_386 &&
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elf32header.e_machine != EM_486 &&
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elf32header.e_machine != EM_X86_64) {
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print("This ELF file is not for x86 or x86_64!");
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}
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if (elf32header.e_type == ET_REL) {
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} else if (elf32header.e_type == ET_EXEC) {
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} else if (elf32header.e_type == ET_DYN) {
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}
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} else if (elfdata[EI_CLASS] == ELFCLASS64) {
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Elf64_Ehdr elf64header;
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CopyMem(&elf64header, elfdata, sizeof(elf64header));
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}
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}
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@ -0,0 +1,3 @@
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#include <../BaseTools/Source/C/GenFw/elf_common.h>
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#include <../BaseTools/Source/C/GenFw/elf32.h>
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#include <../BaseTools/Source/C/GenFw/elf64.h>
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@ -0,0 +1,40 @@
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char keycode_to_ascii[] = {
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0, 0, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '^',
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0, 0, 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '@', '[',
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'\n', 0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', ':', 0,
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0, ']', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*',
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0, ' ', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, '\\', 0, 0, 0, 0, 0, 0, 0, 0, 0, '\\',
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0};
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char keycode_to_ascii_shift[] = {
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0, 0, '!', '"', '#', '$', '%', '&', '\'', '(', ')', 0, '=', '~', 0,
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0, 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '`', '{', 0, 0,
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'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', '+', '*', 0, 0, '}', 'Z',
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'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 0, '*', 0, ' ', 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-',
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'4', '5', '6', '+', '1', '2', '3', '0', '.', 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '_', 0, 0, 0, 0,
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0, 0, 0, 0, 0, '|', 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0};
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@ -0,0 +1,5 @@
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#include <Library/BaseLib.h>
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#include <Uefi.h>
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#include <Uefi/UefiSpec.h>
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void VMemInit() { UINTN *PageTable = (UINTN *)AsmReadCr3(); }
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CC := g++
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CFLAGS := -std=c++17
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mkramfs: main.cpp
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$(CC) $(CFLAGS) -o mkramfs main.cpp
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clean: $(RM) mkramfs
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@ -0,0 +1,37 @@
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#include <string.h>
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#include <filesystem>
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#include <fstream>
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#include <iostream>
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typedef struct {
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int Start;
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int Size;
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char name[256];
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} FILE_DESC;
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int main(int argc, char **argv) {
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if (argc == 1) {
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std::cout << "Usage:mkramfs <file1> <file2> ..." << std::endl;
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return -1;
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}
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FILE_DESC descriptor[256] = {0};
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std::ofstream ramfs("ramfs.img", std::ios::binary | std::ios::ate);
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for (int i = 1; i < argc; i++) {
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if (!std::filesystem::exists(std::filesystem::path(argv[i]))) {
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std::cout << "file does not exist! - " << argv[i] << std::endl;
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continue;
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}
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descriptor[i].Start = descriptor[i - 1].Start + descriptor[i - 1].Size;
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descriptor[i].Size =
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std::filesystem::file_size(std::filesystem::path(argv[i]));
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strncpy(descriptor[i].name,
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std::filesystem::path(argv[i]).filename().c_str(), 255);
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}
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ramfs.write(reinterpret_cast<char *>(descriptor), sizeof(descriptor));
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for (int i = 1; i < argc; i++) {
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std::ifstream file(argv[i], std::ios::binary);
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ramfs << file.rdbuf();
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file.close();
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}
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ramfs.close();
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}
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@ -0,0 +1,51 @@
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#include <IndustryStandard/Pci.h>
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#include <Uefi.h>
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#include <Uefi/UefiSpec.h>
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typedef struct {
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BOOLEAN isUsing;
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BOOLEAN isIDE; // T:IDE F:AHCI
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UINT8 bus;
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UINT8 device;
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UINT8 function;
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} DiskController;
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DiskController controllers[5];
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void init_pci() {
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for (UINT8 bus = 0; bus < 256; bus++) {
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for (UINT8 device = 0; device < 32; device++) {
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for (UINT8 function = 0; function < 8; function++) {
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UINT32 ConfigData =
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PciCf8Read32(PCI_CF8_LIB_ADDRESS(bus, device, function, 0));
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if (ConfigData != 0xffffffff) {
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ConfigData = PciCf8Read32(
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PCI_CF8_LIB_ADDRESS(bus, device, function, 8));
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if ((ConfigData >> 16) == 0x0101) { // IDE Controller
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int n = 0;
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while (controllers[n].isUsing) {
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n++;
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}
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controllers[n].isUsing = TRUE;
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controllers[n].isIDE = TRUE;
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controllers[n].bus = bus;
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controllers[n].device = device;
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controllers[n].function = function;
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return;
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} else if ((ConfigData >> 8) ==
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0x010601) { // AHCI Controller
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int n = 0;
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while (controllers[n].isUsing) {
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n++;
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}
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controllers[n].isUsing = TRUE;
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controllers[n].isIDE = FALSE;
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controllers[n].bus = bus;
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controllers[n].device = device;
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controllers[n].function = function;
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}
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}
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}
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}
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}
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}
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#include "ramfs.h"
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#include <Guid/FileInfo.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/PrintLib.h>
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#include <Library/UefiLib.h>
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#include <Uefi.h>
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#include "text.h"
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RAMFS_DATA *data;
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void ramfsinit(
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EFI_SYSTEM_TABLE *SystemTable) { // must call before ExitBootServices
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EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *fsp;
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EFI_FILE_PROTOCOL *Root, *ramfs;
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EFI_FILE_INFO info;
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UINTN infosize = sizeof(info), datasize;
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EFI_STATUS Status = SystemTable->BootServices->LocateProtocol(
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&gEfiSimpleFileSystemProtocolGuid, NULL, (VOID **)&fsp);
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if (EFI_ERROR(Status)) {
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Print(L"Error:Failed to locate EFI Simple FileSystem Protocol - %r",
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Status);
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return;
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}
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fsp->OpenVolume(fsp, &Root);
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Status = Root->Open(Root, &ramfs, L"ramfs.img", EFI_FILE_MODE_READ, 0);
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if (EFI_ERROR(Status)) {
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Print(L"Error:Failed to open ramfs file - %r\n", Status);
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return;
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}
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ramfs->GetInfo(ramfs, &gEfiFileInfoGuid, &infosize, &info);
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Status = SystemTable->BootServices->AllocatePool(
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EfiLoaderData, info.FileSize, (void **)&data);
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if (EFI_ERROR(Status)) {
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Print(L"Error:Failed to allocate ramfs memory - %r\n", Status);
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return;
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}
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datasize = info.FileSize;
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ramfs->Read(ramfs, &datasize, data);
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}
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void getfilesize(char *filename, UINTN *size) {
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int index;
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for (index = 0; index < 256; index++)
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if (!AsciiStrCmp(data->descriptor[index].name, filename)) break;
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*size = data->descriptor[index].Size;
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}
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void readfile(char *filename, UINTN buffersize, void *buffer) {
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int index;
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for (index = 0; index < 256; index++)
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if (!AsciiStrCmp(data->descriptor[index].name, filename)) break;
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CopyMem(buffer, data->data + data->descriptor[index].Start, buffersize);
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}
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@ -0,0 +1,15 @@
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#include <Protocol/SimpleFileSystem.h>
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typedef struct {
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int Start;
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int Size;
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char name[256];
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} FILE_DESC;
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typedef struct {
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FILE_DESC descriptor[256];
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char data[];
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} RAMFS_DATA;
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void ramfsinit(EFI_SYSTEM_TABLE *SystemTable);
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void getfilesize(char *filename, UINTN *size);
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void readfile(char *filename, UINTN buffersize, void *buffer);
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@ -0,0 +1,3 @@
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int main(){
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return 0;
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}
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Loading…
Reference in new issue