Files
lk/lib/uefi/runtime_service_provider.cpp
Travis Geiselbrecht 31448f52db [lib][uefi] fix a few warnings and a little code tidying
GCC 14 is quite picky about warnings, probably more so than clang.

-Fix a bunch of printf warnings. Pointers should be printed with %p.
-Move some stuff into an anonymous namespace.
-Worked around GCC really not liking reinterpret_casting from one
function pointer type to another. Fiddled with it a bit and eventually
settled on casting the function pointer to const void * and passing it
through.
2025-01-11 16:35:42 -08:00

74 lines
2.1 KiB
C++

/*
* Copyright (C) 2024 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "runtime_service_provider.h"
#include "types.h"
#include <stdio.h>
#include <string.h>
namespace {
constexpr auto &&kSecureBoot = L"SecureBoot";
EFI_STATUS GetVariable(char16_t *VariableName, EfiGuid *VendorGuid,
uint32_t *Attributes, size_t *DataSize, void *Data) {
char buffer[512];
size_t i = 0;
while (VariableName[i] && i < sizeof(buffer)) {
size_t j = 0;
for (j = 0; j < sizeof(buffer) - 1 && VariableName[i + j]; j++) {
buffer[j] = VariableName[i + j];
}
i += j;
}
buffer[i] = 0;
if (strcmp(buffer, "SecureBoot") == 0 || strcmp(buffer, "SetupMode") == 0) {
if (DataSize) {
*DataSize = 1;
}
if (Data) {
memset(Data, 0, 1);
}
return SUCCESS;
}
printf("%s(%s) is unsupported\n", __FUNCTION__, buffer);
return UNSUPPORTED;
}
EFI_STATUS SetVirtualAddressMap(size_t MemoryMapSize, size_t DescriptorSize,
uint32_t DescriptorVersion,
EfiMemoryDescriptor *VirtualMap) {
printf("%s is unsupported\n", __FUNCTION__);
return UNSUPPORTED;
}
EFI_STATUS SetVariable(char16_t *VariableName, EfiGuid *VendorGuid,
uint32_t Attributes, size_t DataSize, void *Data) {
printf("%s is unsupported\n", __FUNCTION__);
return UNSUPPORTED;
}
} // namespace
void setup_runtime_service_table(EfiRuntimeService *service) {
service->GetVariable = GetVariable;
service->SetVariable = SetVariable;
service->SetVirtualAddressMap = SetVirtualAddressMap;
}