blob: e8a4502a4ca50e3e8f2cb84e273378bb98936f55 [file] [log] [blame]
// 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);
#define xprintf(fmt...) printf(fmt)
// 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);
printf("close protocol\n");
xefi_close_protocol(gImg, &LoadedImageProtocol);
return status;