sys/external/intel-public/acpica/dist/debugger/dbfileio.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: dbfileio - Debugger file I/O commands. These can't usually
   4  *              be used when running the debugger in Ring 0 (Kernel mode)
   5  *
   6  ******************************************************************************/
   7
   8 /******************************************************************************
   9  *
  10  * 1. Copyright Notice
  11  *
  12  * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
  13  * All rights reserved.
  14  *
  15  * 2. License
  16  *
  17  * 2.1. This is your license from Intel Corp. under its intellectual property
  18  * rights.  You may have additional license terms from the party that provided
  19  * you this software, covering your right to use that party's intellectual
  20  * property rights.
  21  *
  22  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  23  * copy of the source code appearing in this file ("Covered Code") an
  24  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  25  * base code distributed originally by Intel ("Original Intel Code") to copy,
  26  * make derivatives, distribute, use and display any portion of the Covered
  27  * Code in any form, with the right to sublicense such rights; and
  28  *
  29  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  30  * license (with the right to sublicense), under only those claims of Intel
  31  * patents that are infringed by the Original Intel Code, to make, use, sell,
  32  * offer to sell, and import the Covered Code and derivative works thereof
  33  * solely to the minimum extent necessary to exercise the above copyright
  34  * license, and in no event shall the patent license extend to any additions
  35  * to or modifications of the Original Intel Code.  No other license or right
  36  * is granted directly or by implication, estoppel or otherwise;
  37  *
  38  * The above copyright and patent license is granted only if the following
  39  * conditions are met:
  40  *
  41  * 3. Conditions
  42  *
  43  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  44  * Redistribution of source code of any substantial portion of the Covered
  45  * Code or modification with rights to further distribute source must include
  46  * the above Copyright Notice, the above License, this list of Conditions,
  47  * and the following Disclaimer and Export Compliance provision.  In addition,
  48  * Licensee must cause all Covered Code to which Licensee contributes to
  49  * contain a file documenting the changes Licensee made to create that Covered
  50  * Code and the date of any change.  Licensee must include in that file the
  51  * documentation of any changes made by any predecessor Licensee.  Licensee
  52  * must include a prominent statement that the modification is derived,
  53  * directly or indirectly, from Original Intel Code.
  54  *
  55  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  56  * Redistribution of source code of any substantial portion of the Covered
  57  * Code or modification without rights to further distribute source must
  58  * include the following Disclaimer and Export Compliance provision in the
  59  * documentation and/or other materials provided with distribution.  In
  60  * addition, Licensee may not authorize further sublicense of source of any
  61  * portion of the Covered Code, and must include terms to the effect that the
  62  * license from Licensee to its licensee is limited to the intellectual
  63  * property embodied in the software Licensee provides to its licensee, and
  64  * not to intellectual property embodied in modifications its licensee may
  65  * make.
  66  *
  67  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  68  * substantial portion of the Covered Code or modification must reproduce the
  69  * above Copyright Notice, and the following Disclaimer and Export Compliance
  70  * provision in the documentation and/or other materials provided with the
  71  * distribution.
  72  *
  73  * 3.4. Intel retains all right, title, and interest in and to the Original
  74  * Intel Code.
  75  *
  76  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  77  * Intel shall be used in advertising or otherwise to promote the sale, use or
  78  * other dealings in products derived from or relating to the Covered Code
  79  * without prior written authorization from Intel.
  80  *
  81  * 4. Disclaimer and Export Compliance
  82  *
  83  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  84  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  85  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  86  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  87  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  88  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  89  * PARTICULAR PURPOSE.
  90  *
  91  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  92  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  93  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  94  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  95  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  96  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  97  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  98  * LIMITED REMEDY.
  99  *
 100  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 101  * software or system incorporating such software without first obtaining any
 102  * required license or other approval from the U. S. Department of Commerce or
 103  * any other agency or department of the United States Government.  In the
 104  * event Licensee exports any such software from the United States or
 105  * re-exports any such software from a foreign destination, Licensee shall
 106  * ensure that the distribution and export/re-export of the software is in
 107  * compliance with all laws, regulations, orders, or other restrictions of the
 108  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 109  * any of its subsidiaries will export/re-export any technical data, process,
 110  * software, or service, directly or indirectly, to any country for which the
 111  * United States government or any agency thereof requires an export license,
 112  * other governmental approval, or letter of assurance, without first obtaining
 113  * such license, approval or letter.
 114  *
 115  *****************************************************************************/
 116
 117
 118 #include "acpi.h"
 119 #include "accommon.h"
 120 #include "acdebug.h"
 121
 122 #ifdef ACPI_APPLICATION
 123 #include "actables.h"
 124 #endif
 125
 126 #if (defined ACPI_DEBUGGER || defined ACPI_DISASSEMBLER)
 127
 128 #define _COMPONENT          ACPI_CA_DEBUGGER
 129         ACPI_MODULE_NAME    ("dbfileio")
 130
 131 /*
 132  * NOTE: this is here for lack of a better place. It is used in all
 133  * flavors of the debugger, need LCD file
 134  */
 135 #ifdef ACPI_APPLICATION
 136 #include <stdio.h>
 137 FILE                        *AcpiGbl_DebugFile = NULL;
 138 #endif
 139
 140
 141 #ifdef ACPI_DEBUGGER
 142
 143 /* Local prototypes */
 144
 145 #ifdef ACPI_APPLICATION
 146
 147 static ACPI_STATUS
 148 AcpiDbCheckTextModeCorruption (
 149     UINT8                   *Table,
 150     UINT32                  TableLength,
 151     UINT32                  FileLength);
 152
 153 static ACPI_STATUS
 154 AeLocalLoadTable (
 155     ACPI_TABLE_HEADER       *TablePtr);
 156 #endif
 157
 158 /*******************************************************************************
 159  *
 160  * FUNCTION:    AcpiDbCloseDebugFile
 161  *
 162  * PARAMETERS:  None
 163  *
 164  * RETURN:      None
 165  *
 166  * DESCRIPTION: If open, close the current debug output file
 167  *
 168  ******************************************************************************/
 169
 170 void
 171 AcpiDbCloseDebugFile (
 172     void)
 173 {
 174
 175 #ifdef ACPI_APPLICATION
 176
 177     if (AcpiGbl_DebugFile)
 178     {
 179        fclose (AcpiGbl_DebugFile);
 180        AcpiGbl_DebugFile = NULL;
 181        AcpiGbl_DbOutputToFile = FALSE;
 182        AcpiOsPrintf ("Debug output file %s closed\n", AcpiGbl_DbDebugFilename);
 183     }
 184 #endif
 185 }
 186
 187
 188 /*******************************************************************************
 189  *
 190  * FUNCTION:    AcpiDbOpenDebugFile
 191  *
 192  * PARAMETERS:  Name                - Filename to open
 193  *
 194  * RETURN:      None
 195  *
 196  * DESCRIPTION: Open a file where debug output will be directed.
 197  *
 198  ******************************************************************************/
 199
 200 void
 201 AcpiDbOpenDebugFile (
 202     char                    *Name)
 203 {
 204
 205 #ifdef ACPI_APPLICATION
 206
 207     AcpiDbCloseDebugFile ();
 208     AcpiGbl_DebugFile = fopen (Name, "w+");
 209     if (AcpiGbl_DebugFile)
 210     {
 211         AcpiOsPrintf ("Debug output file %s opened\n", Name);
 212         ACPI_STRCPY (AcpiGbl_DbDebugFilename, Name);
 213         AcpiGbl_DbOutputToFile = TRUE;
 214     }
 215     else
 216     {
 217         AcpiOsPrintf ("Could not open debug file %s\n", Name);
 218     }
 219
 220 #endif
 221 }
 222 #endif
 223
 224
 225 #ifdef ACPI_APPLICATION
 226 /*******************************************************************************
 227  *
 228  * FUNCTION:    AcpiDbCheckTextModeCorruption
 229  *
 230  * PARAMETERS:  Table           - Table buffer
 231  *              TableLength     - Length of table from the table header
 232  *              FileLength      - Length of the file that contains the table
 233  *
 234  * RETURN:      Status
 235  *
 236  * DESCRIPTION: Check table for text mode file corruption where all linefeed
 237  *              characters (LF) have been replaced by carriage return linefeed
 238  *              pairs (CR/LF).
 239  *
 240  ******************************************************************************/
 241
 242 static ACPI_STATUS
 243 AcpiDbCheckTextModeCorruption (
 244     UINT8                   *Table,
 245     UINT32                  TableLength,
 246     UINT32                  FileLength)
 247 {
 248     UINT32                  i;
 249     UINT32                  Pairs = 0;
 250
 251
 252     if (TableLength != FileLength)
 253     {
 254         ACPI_WARNING ((AE_INFO,
 255             "File length (0x%X) is not the same as the table length (0x%X)",
 256             FileLength, TableLength));
 257     }
 258
 259     /* Scan entire table to determine if each LF has been prefixed with a CR */
 260
 261     for (i = 1; i < FileLength; i++)
 262     {
 263         if (Table[i] == 0x0A)
 264         {
 265             if (Table[i - 1] != 0x0D)
 266             {
 267                 /* The LF does not have a preceding CR, table not corrupted */
 268
 269                 return (AE_OK);
 270             }
 271             else
 272             {
 273                 /* Found a CR/LF pair */
 274
 275                 Pairs++;
 276             }
 277             i++;
 278         }
 279     }
 280
 281     if (!Pairs)
 282     {
 283         return (AE_OK);
 284     }
 285
 286     /*
 287      * Entire table scanned, each CR is part of a CR/LF pair --
 288      * meaning that the table was treated as a text file somewhere.
 289      *
 290      * NOTE: We can't "fix" the table, because any existing CR/LF pairs in the
 291      * original table are left untouched by the text conversion process --
 292      * meaning that we cannot simply replace CR/LF pairs with LFs.
 293      */
 294     AcpiOsPrintf ("Table has been corrupted by text mode conversion\n");
 295     AcpiOsPrintf ("All LFs (%d) were changed to CR/LF pairs\n", Pairs);
 296     AcpiOsPrintf ("Table cannot be repaired!\n");
 297     return (AE_BAD_VALUE);
 298 }
 299
 300
 301 /*******************************************************************************
 302  *
 303  * FUNCTION:    AcpiDbReadTable
 304  *
 305  * PARAMETERS:  fp              - File that contains table
 306  *              Table           - Return value, buffer with table
 307  *              TableLength     - Return value, length of table
 308  *
 309  * RETURN:      Status
 310  *
 311  * DESCRIPTION: Load the DSDT from the file pointer
 312  *
 313  ******************************************************************************/
 314
 315 static ACPI_STATUS
 316 AcpiDbReadTable (
 317     FILE                    *fp,
 318     ACPI_TABLE_HEADER       **Table,
 319     UINT32                  *TableLength)
 320 {
 321     ACPI_TABLE_HEADER       TableHeader;
 322     UINT32                  Actual;
 323     ACPI_STATUS             Status;
 324     UINT32                  FileSize;
 325     BOOLEAN                 StandardHeader = TRUE;
 326
 327
 328     /* Get the file size */
 329
 330     fseek (fp, 0, SEEK_END);
 331     FileSize = (UINT32) ftell (fp);
 332     fseek (fp, 0, SEEK_SET);
 333
 334     if (FileSize < 4)
 335     {
 336         return (AE_BAD_HEADER);
 337     }
 338
 339     /* Read the signature */
 340
 341     if (fread (&TableHeader, 1, 4, fp) != 4)
 342     {
 343         AcpiOsPrintf ("Could not read the table signature\n");
 344         return (AE_BAD_HEADER);
 345     }
 346
 347     fseek (fp, 0, SEEK_SET);
 348
 349     /* The RSDT and FACS tables do not have standard ACPI headers */
 350
 351     if (ACPI_COMPARE_NAME (TableHeader.Signature, "RSD ") ||
 352         ACPI_COMPARE_NAME (TableHeader.Signature, "FACS"))
 353     {
 354         *TableLength = FileSize;
 355         StandardHeader = FALSE;
 356     }
 357     else
 358     {
 359         /* Read the table header */
 360
 361         if (fread (&TableHeader, 1, sizeof (TableHeader), fp) !=
 362                 sizeof (ACPI_TABLE_HEADER))
 363         {
 364             AcpiOsPrintf ("Could not read the table header\n");
 365             return (AE_BAD_HEADER);
 366         }
 367
 368 #if 0
 369         /* Validate the table header/length */
 370
 371         Status = AcpiTbValidateTableHeader (&TableHeader);
 372         if (ACPI_FAILURE (Status))
 373         {
 374             AcpiOsPrintf ("Table header is invalid!\n");
 375             return (Status);
 376         }
 377 #endif
 378
 379         /* File size must be at least as long as the Header-specified length */
 380
 381         if (TableHeader.Length > FileSize)
 382         {
 383             AcpiOsPrintf (
 384                 "TableHeader length [0x%X] greater than the input file size [0x%X]\n",
 385                 TableHeader.Length, FileSize);
 386             return (AE_BAD_HEADER);
 387         }
 388
 389 #ifdef ACPI_OBSOLETE_CODE
 390         /* We only support a limited number of table types */
 391
 392         if (ACPI_STRNCMP ((char *) TableHeader.Signature, DSDT_SIG, 4) &&
 393             ACPI_STRNCMP ((char *) TableHeader.Signature, PSDT_SIG, 4) &&
 394             ACPI_STRNCMP ((char *) TableHeader.Signature, SSDT_SIG, 4))
 395         {
 396             AcpiOsPrintf ("Table signature [%4.4s] is invalid or not supported\n",
 397                 (char *) TableHeader.Signature);
 398             ACPI_DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
 399             return (AE_ERROR);
 400         }
 401 #endif
 402
 403         *TableLength = TableHeader.Length;
 404     }
 405
 406     /* Allocate a buffer for the table */
 407
 408     *Table = AcpiOsAllocate ((size_t) FileSize);
 409     if (!*Table)
 410     {
 411         AcpiOsPrintf (
 412             "Could not allocate memory for ACPI table %4.4s (size=0x%X)\n",
 413             TableHeader.Signature, *TableLength);
 414         return (AE_NO_MEMORY);
 415     }
 416
 417     /* Get the rest of the table */
 418
 419     fseek (fp, 0, SEEK_SET);
 420     Actual = fread (*Table, 1, (size_t) FileSize, fp);
 421     if (Actual == FileSize)
 422     {
 423         if (StandardHeader)
 424         {
 425             /* Now validate the checksum */
 426
 427             Status = AcpiTbChecksum ((void *) *Table,
 428                         ACPI_CAST_PTR (ACPI_TABLE_HEADER, *Table)->Length);
 429
 430             if (Status == AE_BAD_CHECKSUM)
 431             {
 432                 Status = AcpiDbCheckTextModeCorruption ((UINT8 *) *Table,
 433                             FileSize, (*Table)->Length);
 434                 return (Status);
 435             }
 436         }
 437         return (AE_OK);
 438     }
 439
 440     if (Actual > 0)
 441     {
 442         AcpiOsPrintf ("Warning - reading table, asked for %X got %X\n",
 443             FileSize, Actual);
 444         return (AE_OK);
 445     }
 446
 447     AcpiOsPrintf ("Error - could not read the table file\n");
 448     AcpiOsFree (*Table);
 449     *Table = NULL;
 450     *TableLength = 0;
 451
 452     return (AE_ERROR);
 453 }
 454
 455
 456 /*******************************************************************************
 457  *
 458  * FUNCTION:    AeLocalLoadTable
 459  *
 460  * PARAMETERS:  Table           - pointer to a buffer containing the entire
 461  *                                table to be loaded
 462  *
 463  * RETURN:      Status
 464  *
 465  * DESCRIPTION: This function is called to load a table from the caller's
 466  *              buffer. The buffer must contain an entire ACPI Table including
 467  *              a valid header. The header fields will be verified, and if it
 468  *              is determined that the table is invalid, the call will fail.
 469  *
 470  ******************************************************************************/
 471
 472 static ACPI_STATUS
 473 AeLocalLoadTable (
 474     ACPI_TABLE_HEADER       *Table)
 475 {
 476     ACPI_STATUS             Status = AE_OK;
 477 /*    ACPI_TABLE_DESC         TableInfo; */
 478
 479
 480     ACPI_FUNCTION_TRACE (AeLocalLoadTable);
 481 #if 0
 482
 483
 484     if (!Table)
 485     {
 486         return_ACPI_STATUS (AE_BAD_PARAMETER);
 487     }
 488
 489     TableInfo.Pointer = Table;
 490     Status = AcpiTbRecognizeTable (&TableInfo, ACPI_TABLE_ALL);
 491     if (ACPI_FAILURE (Status))
 492     {
 493         return_ACPI_STATUS (Status);
 494     }
 495
 496     /* Install the new table into the local data structures */
 497
 498     Status = AcpiTbInstallTable (&TableInfo);
 499     if (ACPI_FAILURE (Status))
 500     {
 501         if (Status == AE_ALREADY_EXISTS)
 502         {
 503             /* Table already exists, no error */
 504
 505             Status = AE_OK;
 506         }
 507
 508         /* Free table allocated by AcpiTbGetTable */
 509
 510         AcpiTbDeleteSingleTable (&TableInfo);
 511         return_ACPI_STATUS (Status);
 512     }
 513
 514 #if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
 515
 516     Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
 517     if (ACPI_FAILURE (Status))
 518     {
 519         /* Uninstall table and free the buffer */
 520
 521         AcpiTbDeleteTablesByType (ACPI_TABLE_ID_DSDT);
 522         return_ACPI_STATUS (Status);
 523     }
 524 #endif
 525 #endif
 526
 527     return_ACPI_STATUS (Status);
 528 }
 529
 530
 531 /*******************************************************************************
 532  *
 533  * FUNCTION:    AcpiDbReadTableFromFile
 534  *
 535  * PARAMETERS:  Filename         - File where table is located
 536  *              Table            - Where a pointer to the table is returned
 537  *
 538  * RETURN:      Status
 539  *
 540  * DESCRIPTION: Get an ACPI table from a file
 541  *
 542  ******************************************************************************/
 543
 544 ACPI_STATUS
 545 AcpiDbReadTableFromFile (
 546     char                    *Filename,
 547     ACPI_TABLE_HEADER       **Table)
 548 {
 549     FILE                    *fp;
 550     UINT32                  TableLength;
 551     ACPI_STATUS             Status;
 552
 553
 554     /* Open the file */
 555
 556     fp = fopen (Filename, "rb");
 557     if (!fp)
 558     {
 559         AcpiOsPrintf ("Could not open input file %s\n", Filename);
 560         return (AE_ERROR);
 561     }
 562
 563     /* Get the entire file */
 564
 565     fprintf (stderr, "Loading Acpi table from file %s\n", Filename);
 566     Status = AcpiDbReadTable (fp, Table, &TableLength);
 567     fclose(fp);
 568
 569     if (ACPI_FAILURE (Status))
 570     {
 571         AcpiOsPrintf ("Could not get table from the file\n");
 572         return (Status);
 573     }
 574
 575     return (AE_OK);
 576  }
 577 #endif
 578
 579
 580 /*******************************************************************************
 581  *
 582  * FUNCTION:    AcpiDbGetTableFromFile
 583  *
 584  * PARAMETERS:  Filename        - File where table is located
 585  *              ReturnTable     - Where a pointer to the table is returned
 586  *
 587  * RETURN:      Status
 588  *
 589  * DESCRIPTION: Load an ACPI table from a file
 590  *
 591  ******************************************************************************/
 592
 593 ACPI_STATUS
 594 AcpiDbGetTableFromFile (
 595     char                    *Filename,
 596     ACPI_TABLE_HEADER       **ReturnTable)
 597 {
 598 #ifdef ACPI_APPLICATION
 599     ACPI_STATUS             Status;
 600     ACPI_TABLE_HEADER       *Table;
 601     BOOLEAN                 IsAmlTable = TRUE;
 602
 603
 604     Status = AcpiDbReadTableFromFile (Filename, &Table);
 605     if (ACPI_FAILURE (Status))
 606     {
 607         return (Status);
 608     }
 609
 610 #ifdef ACPI_DATA_TABLE_DISASSEMBLY
 611     IsAmlTable = AcpiUtIsAmlTable (Table);
 612 #endif
 613
 614     if (IsAmlTable)
 615     {
 616         /* Attempt to recognize and install the table */
 617
 618         Status = AeLocalLoadTable (Table);
 619         if (ACPI_FAILURE (Status))
 620         {
 621             if (Status == AE_ALREADY_EXISTS)
 622             {
 623                 AcpiOsPrintf ("Table %4.4s is already installed\n",
 624                     Table->Signature);
 625             }
 626             else
 627             {
 628                 AcpiOsPrintf ("Could not install table, %s\n",
 629                     AcpiFormatException (Status));
 630             }
 631
 632             return (Status);
 633         }
 634
 635         fprintf (stderr,
 636             "Acpi table [%4.4s] successfully installed and loaded\n",
 637             Table->Signature);
 638     }
 639
 640     AcpiGbl_AcpiHardwarePresent = FALSE;
 641     if (ReturnTable)
 642     {
 643         *ReturnTable = Table;
 644     }
 645
 646
 647 #endif  /* ACPI_APPLICATION */
 648     return (AE_OK);
 649 }
 650
 651 #endif  /* ACPI_DEBUGGER */
 652