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[mirror_edk2.git] / Tools / CodeTools / Source / GenAcpiTable / GenAcpiTable.c

/*++\r
\r
Copyright (c)  2004-2006 Intel Corporation. All rights reserved\r
This program and the accompanying materials are licensed and made available \r
under the terms and conditions of the BSD License which accompanies this \r
distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
Module Name:\r
\r
  GenAcpiTable.c\r
  \r
Abstract:\r
\r
  A utility that extracts the .DATA section from a PE/COFF image.\r
\r
--*/\r
\r
#include <stdio.h>\r
#include <string.h>\r
#include <stdlib.h>\r
\r
#include <Common/UefiBaseTypes.h>\r
#include <Common/EfiImage.h> // for PE32 structure definitions\r
\r
#include "CommonLib.h"\r
#include "EfiUtilityMsgs.h"\r
\r
//\r
// Version of this utility\r
//\r
#define UTILITY_NAME    "GenAcpiTable"\r
#define UTILITY_VERSION "v0.11"\r
\r
//\r
// Define the max length of a filename\r
//\r
#define MAX_PATH                  256\r
#define DEFAULT_OUTPUT_EXTENSION  ".acpi"\r
\r
//\r
// Use this to track our command-line options and globals\r
//\r
struct {\r
  INT8  OutFileName[MAX_PATH];\r
  INT8  InFileName[MAX_PATH];\r
} mOptions;\r
\r
//\r
// Use these to convert from machine type value to a named type\r
//\r
typedef struct {\r
  UINT16  Value;\r
  INT8    *Name;\r
} STRING_LOOKUP;\r
\r
static STRING_LOOKUP  mMachineTypes[] = {\r
  EFI_IMAGE_MACHINE_IA32,\r
  "IA32",\r
  EFI_IMAGE_MACHINE_IA64,\r
  "IA64",\r
  EFI_IMAGE_MACHINE_EBC,\r
  "EBC",\r
  0,\r
  NULL\r
};\r
\r
static STRING_LOOKUP  mSubsystemTypes[] = {\r
  EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION,\r
  "EFI application",\r
  EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER,\r
  "EFI boot service driver",\r
  EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER,\r
  "EFI runtime driver",\r
  0,\r
  NULL\r
};\r
//\r
//  Function prototypes\r
//\r
static\r
void\r
Usage (\r
  VOID\r
  );\r
\r
static\r
STATUS\r
ParseCommandLine (\r
  int       Argc,\r
  char      *Argv[]\r
  );\r
\r
static\r
STATUS\r
CheckPE32File (\r
  INT8      *FileName,\r
  FILE      *Fptr,\r
  UINT16    *MachineType,\r
  UINT16    *SubSystem\r
  );\r
\r
static\r
STATUS\r
ProcessFile (\r
  INT8      *InFileName,\r
  INT8      *OutFileName\r
  );\r
\r
static\r
void\r
DumpImage (\r
  INT8      *FileName\r
  );\r
\r
main (\r
  int   Argc,\r
  char  *Argv[]\r
  )\r
/*++\r
\r
Routine Description:\r
  \r
\r
Arguments:\r
\r
  Argc            - standard C main() argument count\r
\r
  Argv            - standard C main() argument list\r
\r
Returns:\r
\r
  0             success\r
  non-zero      otherwise\r
\r
--*/\r
// GC_TODO:    ] - add argument and description to function comment\r
{\r
  UINT32  Status;\r
\r
  SetUtilityName (UTILITY_NAME);\r
  //\r
  // Parse the command line arguments\r
  //\r
  if (ParseCommandLine (Argc, Argv)) {\r
    return STATUS_ERROR;\r
  }\r
  //\r
  // Make sure we don't have the same filename for input and output files\r
  //\r
  if (stricmp (mOptions.OutFileName, mOptions.InFileName) == 0) {\r
    Error (NULL, 0, 0, mOptions.OutFileName, "input and output file names must be different");\r
    goto Finish;\r
  }\r
  //\r
  // Process the file\r
  //\r
  ProcessFile (mOptions.InFileName, mOptions.OutFileName);\r
Finish:\r
  Status = GetUtilityStatus ();\r
  return Status;\r
}\r
\r
static\r
STATUS\r
ProcessFile (\r
  INT8      *InFileName,\r
  INT8      *OutFileName\r
  )\r
/*++\r
\r
Routine Description:\r
  \r
  Process a PE32 EFI file.\r
\r
Arguments:\r
\r
  InFileName - Name of the PE32 EFI file to process.\r
  OutFileName - Name of the output file for the processed data.\r
\r
Returns:\r
\r
  0 - successful\r
\r
--*/\r
{\r
  STATUS                      Status;\r
  UINTN                       Index;\r
  FILE                        *InFptr;\r
  FILE                        *OutFptr;\r
  UINT16                      MachineType;\r
  UINT16                      SubSystem;\r
  UINT32                      PESigOffset;\r
  EFI_IMAGE_FILE_HEADER       FileHeader;\r
  EFI_IMAGE_OPTIONAL_HEADER32 OptionalHeader32;\r
  EFI_IMAGE_OPTIONAL_HEADER64 OptionalHeader64;\r
  EFI_IMAGE_SECTION_HEADER    SectionHeader;\r
  UINT8                       *Buffer;\r
  long                        SaveFilePosition;\r
\r
  InFptr  = NULL;\r
  OutFptr = NULL;\r
  Buffer  = NULL;\r
  Status  = STATUS_ERROR;\r
  //\r
  // Try to open the input file\r
  //\r
  if ((InFptr = fopen (InFileName, "rb")) == NULL) {\r
    Error (NULL, 0, 0, InFileName, "failed to open input file for reading");\r
    return STATUS_ERROR;\r
  }\r
  //\r
  // Double-check the file to make sure it's what we expect it to be\r
  //\r
  if (CheckPE32File (InFileName, InFptr, &MachineType, &SubSystem) != STATUS_SUCCESS) {\r
    goto Finish;\r
  }\r
  //\r
  // Per the PE/COFF specification, at offset 0x3C in the file is a 32-bit\r
  // offset (from the start of the file) to the PE signature, which always\r
  // follows the MSDOS stub. The PE signature is immediately followed by the\r
  // COFF file header.\r
  //\r
  //\r
  if (fseek (InFptr, 0x3C, SEEK_SET) != 0) {\r
    Error (NULL, 0, 0, InFileName, "failed to seek to PE signature in file", NULL);\r
    goto Finish;\r
  }\r
\r
  if (fread (&PESigOffset, sizeof (PESigOffset), 1, InFptr) != 1) {\r
    Error (NULL, 0, 0, InFileName, "failed to read PE signature offset from file");\r
    goto Finish;\r
  }\r
\r
  if (fseek (InFptr, PESigOffset + 4, SEEK_SET) != 0) {\r
    Error (NULL, 0, 0, InFileName, "failed to seek to PE signature");\r
    goto Finish;\r
  }\r
  //\r
  // We should now be at the COFF file header. Read it in and verify it's\r
  // of an image type we support.\r
  //\r
  if (fread (&FileHeader, sizeof (EFI_IMAGE_FILE_HEADER), 1, InFptr) != 1) {\r
    Error (NULL, 0, 0, InFileName, "failed to read file header from image");\r
    goto Finish;\r
  }\r
\r
  if ((FileHeader.Machine != EFI_IMAGE_MACHINE_IA32) && (FileHeader.Machine != EFI_IMAGE_MACHINE_IA64) && (FileHeader.Machine != EFI_IMAGE_MACHINE_X64)) {\r
    Error (NULL, 0, 0, InFileName, "image is of an unsupported machine type 0x%X", (UINT32) FileHeader.Machine);\r
    goto Finish;\r
  }\r
  //\r
  // Read in the optional header. Assume PE32, and if not, then re-read as PE32+\r
  //\r
  SaveFilePosition = ftell (InFptr);\r
  if (fread (&OptionalHeader32, sizeof (EFI_IMAGE_OPTIONAL_HEADER32), 1, InFptr) != 1) {\r
    Error (NULL, 0, 0, InFileName, "failed to read optional header from input file");\r
    goto Finish;\r
  }\r
\r
  if (OptionalHeader32.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {\r
    if (fseek (InFptr, SaveFilePosition, SEEK_SET) != 0) {\r
      Error (NULL, 0, 0, InFileName, "failed to seek to .data section");\r
      goto Finish;\r
    }\r
\r
    if (fread (&OptionalHeader64, sizeof (EFI_IMAGE_OPTIONAL_HEADER64), 1, InFptr) != 1) {\r
      Error (NULL, 0, 0, InFileName, "failed to read optional header from input file");\r
      goto Finish;\r
    }\r
  }\r
  //\r
  // Search for the ".data" section\r
  //\r
  for (Index = 0; Index < FileHeader.NumberOfSections; Index++) {\r
    if (fread (&SectionHeader, sizeof (EFI_IMAGE_SECTION_HEADER), 1, InFptr) != 1) {\r
      Error (NULL, 0, 0, InFileName, "failed to read optional header from input file");\r
      goto Finish;\r
    }\r
\r
    if (strcmp (SectionHeader.Name, ".data") == 0) {\r
      if (fseek (InFptr, SectionHeader.PointerToRawData, SEEK_SET) != 0) {\r
        Error (NULL, 0, 0, InFileName, "failed to seek to .data section");\r
        goto Finish;\r
      }\r
\r
      Buffer = (UINT8 *) malloc (SectionHeader.Misc.VirtualSize);\r
      if (Buffer == NULL) {\r
        Status = EFI_OUT_OF_RESOURCES;\r
        goto Finish;\r
      }\r
      if (fread (Buffer, SectionHeader.Misc.VirtualSize, 1, InFptr) != 1) {\r
        Error (NULL, 0, 0, InFileName, "failed to .data section");\r
        goto Finish;\r
      }\r
      //\r
      // Now open our output file\r
      //\r
      if ((OutFptr = fopen (OutFileName, "wb")) == NULL) {\r
        Error (NULL, 0, 0, OutFileName, "failed to open output file for writing");\r
        goto Finish;\r
      }\r
\r
      if (fwrite (Buffer, SectionHeader.Misc.VirtualSize, 1, OutFptr) != 1) {\r
        Error (NULL, 0, 0, OutFileName, "failed to write .data section");\r
        goto Finish;\r
      }\r
\r
      Status = STATUS_SUCCESS;\r
      goto Finish;\r
    }\r
  }\r
\r
  Status = STATUS_ERROR;\r
\r
Finish:\r
  if (InFptr != NULL) {\r
    fclose (InFptr);\r
  }\r
  //\r
  // Close the output file. If there was an error, delete the output file so\r
  // that a subsequent build will rebuild it.\r
  //\r
  if (OutFptr != NULL) {\r
    fclose (OutFptr);\r
    if (GetUtilityStatus () == STATUS_ERROR) {\r
      remove (OutFileName);\r
    }\r
  }\r
\r
  //\r
  // Free up our buffer\r
  //\r
  if (Buffer != NULL) {\r
    free (Buffer);\r
  }\r
\r
  return Status;\r
}\r
\r
static\r
STATUS\r
CheckPE32File (\r
  INT8      *FileName,\r
  FILE      *Fptr,\r
  UINT16    *MachineType,\r
  UINT16    *SubSystem\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  GC_TODO: Add function description\r
\r
Arguments:\r
\r
  FileName    - GC_TODO: add argument description\r
  Fptr        - GC_TODO: add argument description\r
  MachineType - GC_TODO: add argument description\r
  SubSystem   - GC_TODO: add argument description\r
\r
Returns:\r
\r
  GC_TODO: add return values\r
\r
--*/\r
{\r
  /*++\r
\r
Routine Description:\r
  \r
  Given a file pointer to a supposed PE32 image file, verify that it is indeed a\r
  PE32 image file, and then return the machine type in the supplied pointer.\r
\r
Arguments:\r
\r
  Fptr          File pointer to the already-opened PE32 file\r
  MachineType   Location to stuff the machine type of the PE32 file. This is needed\r
                because the image may be Itanium-based, IA32, or EBC.\r
\r
Returns:\r
\r
  0             success\r
  non-zero      otherwise\r
\r
--*/\r
  EFI_IMAGE_DOS_HEADER      DosHeader;\r
  EFI_IMAGE_FILE_HEADER     FileHdr;\r
  EFI_IMAGE_OPTIONAL_HEADER OptionalHdr;\r
  UINT32                    PESig;\r
  STATUS                    Status;\r
\r
  Status = STATUS_ERROR;\r
  //\r
  // Position to the start of the file\r
  //\r
  fseek (Fptr, 0, SEEK_SET);\r
  //\r
  // Read the DOS header\r
  //\r
  if (fread (&DosHeader, sizeof (DosHeader), 1, Fptr) != 1) {\r
    Error (NULL, 0, 0, FileName, "failed to read the DOS stub from the input file");\r
    goto Finish;\r
  }\r
  //\r
  // Check the magic number (0x5A4D)\r
  //\r
  if (DosHeader.e_magic != EFI_IMAGE_DOS_SIGNATURE) {\r
    Error (NULL, 0, 0, FileName, "input file does not appear to be a PE32 image (magic number)");\r
    goto Finish;\r
  }\r
  //\r
  // Position into the file and check the PE signature\r
  //\r
  fseek (Fptr, (long) DosHeader.e_lfanew, SEEK_SET);\r
  if (fread (&PESig, sizeof (PESig), 1, Fptr) != 1) {\r
    Error (NULL, 0, 0, FileName, "failed to read PE signature bytes");\r
    goto Finish;\r
  }\r
  //\r
  // Check the PE signature in the header "PE\0\0"\r
  //\r
  if (PESig != EFI_IMAGE_NT_SIGNATURE) {\r
    Error (NULL, 0, 0, FileName, "file does not appear to be a PE32 image (signature)");\r
    goto Finish;\r
  }\r
  //\r
  // Read the file header\r
  //\r
  if (fread (&FileHdr, sizeof (FileHdr), 1, Fptr) != 1) {\r
    Error (NULL, 0, 0, FileName, "failed to read PE file header from input file");\r
    goto Finish;\r
  }\r
  //\r
  // Read the optional header so we can get the subsystem\r
  //\r
  if (fread (&OptionalHdr, sizeof (OptionalHdr), 1, Fptr) != 1) {\r
    Error (NULL, 0, 0, FileName, "failed to read COFF optional header from input file");\r
    goto Finish;\r
  }\r
\r
  *SubSystem = OptionalHdr.Subsystem;\r
  //\r
  // Good to go\r
  //\r
  Status = STATUS_SUCCESS;\r
Finish:\r
  fseek (Fptr, 0, SEEK_SET);\r
  return Status;\r
}\r
\r
static\r
int\r
ParseCommandLine (\r
  int         Argc,\r
  char        *Argv[]\r
  )\r
/*++\r
\r
Routine Description:\r
  \r
  Given the Argc/Argv program arguments, and a pointer to an options structure,\r
  parse the command-line options and check their validity.\r
\r
\r
Arguments:\r
\r
  Argc            - standard C main() argument count\r
  Argv            - standard C main() argument list\r
\r
Returns:\r
\r
  STATUS_SUCCESS    success\r
  non-zero          otherwise\r
\r
--*/\r
// GC_TODO:    ] - add argument and description to function comment\r
{\r
  //\r
  // Clear out the options\r
  //\r
  memset ((char *) &mOptions, 0, sizeof (mOptions));\r
  //\r
  // Skip over the program name\r
  //\r
  Argc--;\r
  Argv++;\r
\r
  if (Argc != 2) {\r
    Usage ();\r
    return STATUS_ERROR;\r
  }\r
\r
  strcpy (mOptions.InFileName, Argv[0]);\r
  //\r
  // Next argument\r
  //\r
  Argv++;\r
  Argc--;\r
\r
  strcpy (mOptions.OutFileName, Argv[0]);\r
\r
  return STATUS_SUCCESS;\r
}\r
\r
static\r
void\r
Usage (\r
  VOID\r
  )\r
/*++\r
\r
Routine Description:\r
  \r
  Print usage information for this utility.\r
\r
Arguments:\r
\r
  None.\r
\r
Returns:\r
\r
  Nothing.\r
\r
--*/\r
{\r
  int               Index;\r
  static const char *Msg[] = {\r
    UTILITY_NAME " version "UTILITY_VERSION " - Generate ACPI Table image utility",\r
    "  Generate an ACPI Table image from an EFI PE32 image",\r
    "  Usage: "UTILITY_NAME " InFileName OutFileName",\r
    "    where:",\r
    "      InFileName     - name of the input PE32 file",\r
    "      OutFileName    - to write output to OutFileName rather than InFileName"DEFAULT_OUTPUT_EXTENSION,\r
    "",\r
    NULL\r
  };\r
  for (Index = 0; Msg[Index] != NULL; Index++) {\r
    fprintf (stdout, "%s\n", Msg[Index]);\r
  }\r
}\r