| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <efi/system-table.h> |
| #include <efi/types.h> |
| #include <efi/protocol/loaded-image.h> |
| #include <efi/protocol/simple-file-system.h> |
| |
| #include <stdio.h> |
| #include <xefi.h> |
| |
| EFIAPI efi_status efi_main(efi_handle img, efi_system_table* sys) { |
| efi_loaded_image_protocol* loaded; |
| efi_status r; |
| |
| xefi_init(img, sys); |
| |
| printf("Hello, EFI World\n"); |
| |
| r = xefi_open_protocol(img, &LoadedImageProtocol, (void**)&loaded); |
| if (r) |
| xefi_fatal("LoadedImageProtocol", r); |
| |
| printf("Img DeviceHandle='%ls'\n", xefi_handle_to_str(loaded->DeviceHandle)); |
| printf("Img FilePath='%ls'\n", xefi_devpath_to_str(loaded->FilePath)); |
| printf("Img Base=%p Size=%lx\n", loaded->ImageBase, loaded->ImageSize); |
| |
| efi_simple_file_system_protocol* sfs; |
| r = xefi_open_protocol(loaded->DeviceHandle, &SimpleFileSystemProtocol, (void**)&sfs); |
| if (r) |
| xefi_fatal("SimpleFileSystemProtocol", r); |
| |
| efi_file_protocol* root; |
| r = sfs->OpenVolume(sfs, &root); |
| if (r) |
| xefi_fatal("OpenVolume", r); |
| |
| efi_file_protocol* file; |
| r = root->Open(root, &file, L"README.txt", EFI_FILE_MODE_READ, 0); |
| |
| if (r == EFI_SUCCESS) { |
| char buf[512]; |
| size_t sz = sizeof(buf); |
| efi_file_info* finfo = (void*)buf; |
| r = file->GetInfo(file, &FileInfoGuid, &sz, finfo); |
| if (r) |
| xefi_fatal("GetInfo", r); |
| printf("FileSize %ld\n", finfo->FileSize); |
| |
| sz = sizeof(buf) - 1; |
| r = file->Read(file, &sz, buf); |
| if (r) |
| xefi_fatal("Read", r); |
| |
| char* x = buf; |
| while (sz-- > 0) |
| printf("%c", *x++); |
| |
| file->Close(file); |
| } |
| |
| root->Close(root); |
| xefi_close_protocol(loaded->DeviceHandle, &SimpleFileSystemProtocol); |
| xefi_close_protocol(img, &LoadedImageProtocol); |
| |
| xefi_wait_any_key(); |
| |
| return EFI_SUCCESS; |
| } |