| // Copyright 2019 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 <printf.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <xefi.h> |
| |
| #include <efi/protocol/loaded-image.h> |
| #include <efi/boot-services.h> |
| |
| #define VERBOSE 1 |
| |
| #ifndef VERBOSE |
| #define xprintf(...) \ |
| do { \ |
| } while (0); |
| #else |
| #define xprintf(fmt...) printf(fmt) |
| #endif |
| |
| // Caller frees memory. |
| efi_status xefi_get_load_options(size_t *load_options_size, void **load_options) { |
| efi_loaded_image_protocol* loaded; |
| efi_status status; |
| |
| printf("open loaded image\n"); |
| status = xefi_open_protocol(gImg, &LoadedImageProtocol, (void**)&loaded); |
| if (status != EFI_SUCCESS) { |
| xprintf("xefi_cmdline: Cannot open LoadedImageProtocol (%s)\n", xefi_strerror(status)); |
| goto exit0; |
| } |
| |
| printf("allocate load options len %d\n", (int)loaded->LoadOptionsSize); |
| status = gBS->AllocatePool(EfiLoaderData, |
| loaded->LoadOptionsSize + sizeof(char16_t), load_options); |
| |
| if (status != EFI_SUCCESS) { |
| xprintf("xefi_cmdline: Cannot allocate memory (%s)\n", xefi_strerror(status)); |
| goto exit1; |
| } |
| printf("copy load options\n"); |
| gBS->CopyMem(*load_options, loaded->LoadOptions, loaded->LoadOptionsSize); |
| |
| printf("return value\n"); |
| *load_options_size = loaded->LoadOptionsSize + sizeof(char16_t); |
| |
| exit1: |
| printf("close protocol\n"); |
| xefi_close_protocol(gImg, &LoadedImageProtocol); |
| exit0: |
| return status; |
| } |