Function DumpTables

rEFIt_UEFI/Platform/AcpiPatcher.cpp:1237–1427

Saves to disk (DirName != NULL) * or prints to debug log (DirName == NULL) * ACPI tables given by RsdPtr. * Takes tables from Xsdt if present or from Rsdt if Xsdt is not present. */

 *  Takes tables from Xsdt if present or from Rsdt if Xsdt is not present.
 */
VOID DumpTables(VOID *RsdPtrVoid, CONST CHAR16 *DirName)
{
  EFI_STATUS      Status;
  UINTN           Length;
  INTN            SsdtCount;
  CONST CHAR16          *FileNamePrefix;
  //
  // RSDP
  // Take it as Acpi 2.0, but take care that if RsdPtr->Revision == 0
  // then it is actually Acpi 1.0 and fields after RsdtAddress (like XsdtAddress)
  // are not available
  //
  EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER* RsdPtr = (EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER*)RsdPtrVoid;
  if (DirName != NULL) {
    DBG("Saving ACPI tables from RSDP %p to %ls ...\n", RsdPtr, DirName);
  } else {
    DBG("Printing ACPI tables from RSDP %p ...\n", RsdPtr);
  }

  if (RsdPtr->Signature != EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE) {
	  DBG(" RsdPrt at %p has invaid signature 0x%llx - exiting.\n", RsdPtr, RsdPtr->Signature);
    return;
  }

  // Take Signature for printing
  CHAR8 Signature[9];
  CopyMem(&Signature[0], &RsdPtr->Signature, 8);
  Signature[8] = 0;

  // Take Rsdt and Xsdt
  Rsdt = NULL;
  Xsdt = NULL;

  DBG(" %p: '%s', Rev: %d", RsdPtr, Signature, RsdPtr->Revision);
  if (RsdPtr->Revision == 0) {
    // Acpi 1.0
    Length = sizeof(EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
    DBG(" (Acpi 1.0)");
  } else {
    // Acpi 2.0 or newer
    Length = RsdPtr->Length;
    DBG(" (Acpi 2.0 or newer)");
  }
	DBG(", Len: %llu", Length);

  //
  // Save RsdPtr
  //
  if (DirName != NULL && !IsTableSaved(RsdPtr)) {
    DBG(" -> RSDP.aml");
    Status = SaveBufferToDisk(RsdPtr, Length, DirName, L"RSDP.aml");
    MarkTableAsSaved(RsdPtr);
    if (EFI_ERROR(Status)) {
      DBG(" - %s\n", efiStrError(Status));
      return;
    }
  }
  DBG("\n");