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Avoid using gnu-efi static global GUIDs

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This commit is contained in:
Lauri Kenttä
2023-11-20 16:29:23 +02:00
parent 7dd048346d
commit 57ce3ae33e
2 changed files with 11 additions and 5 deletions
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8
src/main.c
View File

@@ -28,8 +28,7 @@ static struct HackBGRT_config config = {
static EFI_GRAPHICS_OUTPUT_PROTOCOL* GOP(void) {
static EFI_GRAPHICS_OUTPUT_PROTOCOL* gop;
if (!gop) {
EFI_GUID GraphicsOutputProtocolGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **)&gop);
LibLocateProtocol(TmpGuidPtr((EFI_GUID) EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID), (void**) &gop);
}
return gop;
}
@@ -130,9 +129,8 @@ ACPI_SDT_HEADER* CreateXsdt(ACPI_SDT_HEADER* xsdt0, UINTN entries) {
*/
static ACPI_BGRT* HandleAcpiTables(enum HackBGRT_action action, ACPI_BGRT* bgrt) {
for (int i = 0; i < ST->NumberOfTableEntries; i++) {
EFI_GUID Acpi20TableGuid = ACPI_20_TABLE_GUID;
EFI_GUID* vendor_guid = &ST->ConfigurationTable[i].VendorGuid;
if (!CompareGuid(vendor_guid, &AcpiTableGuid) && !CompareGuid(vendor_guid, &Acpi20TableGuid)) {
if (CompareMem(vendor_guid, TmpGuidPtr((EFI_GUID) ACPI_TABLE_GUID), sizeof(EFI_GUID)) != 0 && CompareMem(vendor_guid, TmpGuidPtr((EFI_GUID) ACPI_20_TABLE_GUID), sizeof(EFI_GUID)) != 0) {
continue;
}
ACPI_20_RSDP* rsdp = (ACPI_20_RSDP *) ST->ConfigurationTable[i].VendorTable;
@@ -411,7 +409,7 @@ EFI_STATUS EFIAPI EfiMain(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *ST_) {
Log(0, L"HackBGRT version: %s\n", version);
EFI_LOADED_IMAGE* image;
if (EFI_ERROR(BS->HandleProtocol(image_handle, &LoadedImageProtocol, (void**) &image))) {
if (EFI_ERROR(BS->HandleProtocol(image_handle, TmpGuidPtr((EFI_GUID) EFI_LOADED_IMAGE_PROTOCOL_GUID), (void**) &image))) {
Log(config.debug, L"HackBGRT: LOADED_IMAGE_PROTOCOL failed.\n");
goto fail;
}

8
src/util.h
View File

@@ -120,3 +120,11 @@ static inline void* LoadFile(EFI_FILE_HANDLE dir, const CHAR16* path, UINTN* siz
return LoadFileWithPadding(dir, path, size_ptr, 0);
}
/**
* Get a temporary pointer to GUID.
*/
static inline EFI_GUID* TmpGuidPtr(EFI_GUID guid) {
static EFI_GUID g;
g = guid;
return &g;
}