Appends given data to the log and writes it to NVRAM variable. */
| 42 | |
| 43 | /** Appends given data to the log and writes it to NVRAM variable. */ |
| 44 | EFI_STATUS EFIAPI |
| 45 | NVRAMDebugLog(CHAR8 *Format, ...) |
| 46 | { |
| 47 | EFI_STATUS Status; |
| 48 | VA_LIST Marker; |
| 49 | UINTN DataSize; |
| 50 | UINTN DataWritten; |
| 51 | |
| 52 | if (DebugLogBufferPtr == NULL) { |
| 53 | // init pointer to the buffer start |
| 54 | DebugLogBufferPtr = DebugLogBuffer; |
| 55 | } |
| 56 | DataSize = DEBUG_LOG_SIZE - (DebugLogBufferPtr - DebugLogBuffer); |
| 57 | |
| 58 | if (DataSize < 2) { |
| 59 | return EFI_BUFFER_TOO_SMALL; |
| 60 | } |
| 61 | |
| 62 | // add text to buffer |
| 63 | VA_START (Marker, Format); |
| 64 | DataWritten = AsciiVSPrint(DebugLogBufferPtr, DataSize, Format, Marker); |
| 65 | VA_END (Marker); |
| 66 | |
| 67 | DebugLogBufferPtr += DataWritten; |
| 68 | |
| 69 | // delete prev value |
| 70 | //Status = gRT->SetVariable(L"DebugLog", &gEfiNVRAMDebugVarGuid, |
| 71 | // EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE, |
| 72 | // 0, DebugLogBuffer); |
| 73 | // write new value |
| 74 | Status = gRT->SetVariable( |
| 75 | DEBUG_LOG_NVRAM_VAR_NAME, |
| 76 | &gEfiNVRAMDebugVarGuid, |
| 77 | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE, |
| 78 | DebugLogBufferPtr - DebugLogBuffer, |
| 79 | DebugLogBuffer |
| 80 | ); |
| 81 | |
| 82 | return Status; |
| 83 | } |
nothing calls this directly
no test coverage detected