/src/freebsd/sys/contrib/dev/acpica/components/debugger/dbfileio.c
C | 578 lines | 308 code | 105 blank | 165 comment | 41 complexity | bd5ce5eefc433040527b73c56c4b4997 MD5 | raw file
Possible License(s): CC0-1.0, MIT, LGPL-2.0, LGPL-3.0, WTFPL, GPL-2.0, BSD-2-Clause, AGPL-3.0, CC-BY-SA-3.0, MPL-2.0, JSON, BSD-3-Clause-No-Nuclear-License-2014, LGPL-2.1, CPL-1.0, AGPL-1.0, 0BSD, ISC, Apache-2.0, GPL-3.0, IPL-1.0, MPL-2.0-no-copyleft-exception, BSD-3-Clause
- /*******************************************************************************
- *
- * Module Name: dbfileio - Debugger file I/O commands. These can't usually
- * be used when running the debugger in Ring 0 (Kernel mode)
- *
- ******************************************************************************/
- /*
- * Copyright (C) 2000 - 2012, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
- #include <contrib/dev/acpica/include/acpi.h>
- #include <contrib/dev/acpica/include/accommon.h>
- #include <contrib/dev/acpica/include/acdebug.h>
- #ifdef ACPI_APPLICATION
- #include <contrib/dev/acpica/include/actables.h>
- #endif
- #if (defined ACPI_DEBUGGER || defined ACPI_DISASSEMBLER)
- #define _COMPONENT ACPI_CA_DEBUGGER
- ACPI_MODULE_NAME ("dbfileio")
- /*
- * NOTE: this is here for lack of a better place. It is used in all
- * flavors of the debugger, need LCD file
- */
- #ifdef ACPI_APPLICATION
- #include <stdio.h>
- FILE *AcpiGbl_DebugFile = NULL;
- #endif
- #ifdef ACPI_DEBUGGER
- /* Local prototypes */
- #ifdef ACPI_APPLICATION
- static ACPI_STATUS
- AcpiDbCheckTextModeCorruption (
- UINT8 *Table,
- UINT32 TableLength,
- UINT32 FileLength);
- #endif
- /*******************************************************************************
- *
- * FUNCTION: AcpiDbCloseDebugFile
- *
- * PARAMETERS: None
- *
- * RETURN: None
- *
- * DESCRIPTION: If open, close the current debug output file
- *
- ******************************************************************************/
- void
- AcpiDbCloseDebugFile (
- void)
- {
- #ifdef ACPI_APPLICATION
- if (AcpiGbl_DebugFile)
- {
- fclose (AcpiGbl_DebugFile);
- AcpiGbl_DebugFile = NULL;
- AcpiGbl_DbOutputToFile = FALSE;
- AcpiOsPrintf ("Debug output file %s closed\n", AcpiGbl_DbDebugFilename);
- }
- #endif
- }
- /*******************************************************************************
- *
- * FUNCTION: AcpiDbOpenDebugFile
- *
- * PARAMETERS: Name - Filename to open
- *
- * RETURN: None
- *
- * DESCRIPTION: Open a file where debug output will be directed.
- *
- ******************************************************************************/
- void
- AcpiDbOpenDebugFile (
- char *Name)
- {
- #ifdef ACPI_APPLICATION
- AcpiDbCloseDebugFile ();
- AcpiGbl_DebugFile = fopen (Name, "w+");
- if (AcpiGbl_DebugFile)
- {
- AcpiOsPrintf ("Debug output file %s opened\n", Name);
- ACPI_STRCPY (AcpiGbl_DbDebugFilename, Name);
- AcpiGbl_DbOutputToFile = TRUE;
- }
- else
- {
- AcpiOsPrintf ("Could not open debug file %s\n", Name);
- }
- #endif
- }
- #endif
- #ifdef ACPI_APPLICATION
- /*******************************************************************************
- *
- * FUNCTION: AcpiDbCheckTextModeCorruption
- *
- * PARAMETERS: Table - Table buffer
- * TableLength - Length of table from the table header
- * FileLength - Length of the file that contains the table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Check table for text mode file corruption where all linefeed
- * characters (LF) have been replaced by carriage return linefeed
- * pairs (CR/LF).
- *
- ******************************************************************************/
- static ACPI_STATUS
- AcpiDbCheckTextModeCorruption (
- UINT8 *Table,
- UINT32 TableLength,
- UINT32 FileLength)
- {
- UINT32 i;
- UINT32 Pairs = 0;
- if (TableLength != FileLength)
- {
- ACPI_WARNING ((AE_INFO,
- "File length (0x%X) is not the same as the table length (0x%X)",
- FileLength, TableLength));
- }
- /* Scan entire table to determine if each LF has been prefixed with a CR */
- for (i = 1; i < FileLength; i++)
- {
- if (Table[i] == 0x0A)
- {
- if (Table[i - 1] != 0x0D)
- {
- /* The LF does not have a preceding CR, table not corrupted */
- return (AE_OK);
- }
- else
- {
- /* Found a CR/LF pair */
- Pairs++;
- }
- i++;
- }
- }
- if (!Pairs)
- {
- return (AE_OK);
- }
- /*
- * Entire table scanned, each CR is part of a CR/LF pair --
- * meaning that the table was treated as a text file somewhere.
- *
- * NOTE: We can't "fix" the table, because any existing CR/LF pairs in the
- * original table are left untouched by the text conversion process --
- * meaning that we cannot simply replace CR/LF pairs with LFs.
- */
- AcpiOsPrintf ("Table has been corrupted by text mode conversion\n");
- AcpiOsPrintf ("All LFs (%u) were changed to CR/LF pairs\n", Pairs);
- AcpiOsPrintf ("Table cannot be repaired!\n");
- return (AE_BAD_VALUE);
- }
- /*******************************************************************************
- *
- * FUNCTION: AcpiDbReadTable
- *
- * PARAMETERS: fp - File that contains table
- * Table - Return value, buffer with table
- * TableLength - Return value, length of table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load the DSDT from the file pointer
- *
- ******************************************************************************/
- static ACPI_STATUS
- AcpiDbReadTable (
- FILE *fp,
- ACPI_TABLE_HEADER **Table,
- UINT32 *TableLength)
- {
- ACPI_TABLE_HEADER TableHeader;
- UINT32 Actual;
- ACPI_STATUS Status;
- UINT32 FileSize;
- BOOLEAN StandardHeader = TRUE;
- /* Get the file size */
- fseek (fp, 0, SEEK_END);
- FileSize = (UINT32) ftell (fp);
- fseek (fp, 0, SEEK_SET);
- if (FileSize < 4)
- {
- return (AE_BAD_HEADER);
- }
- /* Read the signature */
- if (fread (&TableHeader, 1, 4, fp) != 4)
- {
- AcpiOsPrintf ("Could not read the table signature\n");
- return (AE_BAD_HEADER);
- }
- fseek (fp, 0, SEEK_SET);
- /* The RSDT, FACS and S3PT tables do not have standard ACPI headers */
- if (ACPI_COMPARE_NAME (TableHeader.Signature, "RSD ") ||
- ACPI_COMPARE_NAME (TableHeader.Signature, "FACS") ||
- ACPI_COMPARE_NAME (TableHeader.Signature, "S3PT"))
- {
- *TableLength = FileSize;
- StandardHeader = FALSE;
- }
- else
- {
- /* Read the table header */
- if (fread (&TableHeader, 1, sizeof (TableHeader), fp) !=
- sizeof (ACPI_TABLE_HEADER))
- {
- AcpiOsPrintf ("Could not read the table header\n");
- return (AE_BAD_HEADER);
- }
- #if 0
- /* Validate the table header/length */
- Status = AcpiTbValidateTableHeader (&TableHeader);
- if (ACPI_FAILURE (Status))
- {
- AcpiOsPrintf ("Table header is invalid!\n");
- return (Status);
- }
- #endif
- /* File size must be at least as long as the Header-specified length */
- if (TableHeader.Length > FileSize)
- {
- AcpiOsPrintf (
- "TableHeader length [0x%X] greater than the input file size [0x%X]\n",
- TableHeader.Length, FileSize);
- return (AE_BAD_HEADER);
- }
- #ifdef ACPI_OBSOLETE_CODE
- /* We only support a limited number of table types */
- if (ACPI_STRNCMP ((char *) TableHeader.Signature, DSDT_SIG, 4) &&
- ACPI_STRNCMP ((char *) TableHeader.Signature, PSDT_SIG, 4) &&
- ACPI_STRNCMP ((char *) TableHeader.Signature, SSDT_SIG, 4))
- {
- AcpiOsPrintf ("Table signature [%4.4s] is invalid or not supported\n",
- (char *) TableHeader.Signature);
- ACPI_DUMP_BUFFER (&TableHeader, sizeof (ACPI_TABLE_HEADER));
- return (AE_ERROR);
- }
- #endif
- *TableLength = TableHeader.Length;
- }
- /* Allocate a buffer for the table */
- *Table = AcpiOsAllocate ((size_t) FileSize);
- if (!*Table)
- {
- AcpiOsPrintf (
- "Could not allocate memory for ACPI table %4.4s (size=0x%X)\n",
- TableHeader.Signature, *TableLength);
- return (AE_NO_MEMORY);
- }
- /* Get the rest of the table */
- fseek (fp, 0, SEEK_SET);
- Actual = fread (*Table, 1, (size_t) FileSize, fp);
- if (Actual == FileSize)
- {
- if (StandardHeader)
- {
- /* Now validate the checksum */
- Status = AcpiTbVerifyChecksum ((void *) *Table,
- ACPI_CAST_PTR (ACPI_TABLE_HEADER, *Table)->Length);
- if (Status == AE_BAD_CHECKSUM)
- {
- Status = AcpiDbCheckTextModeCorruption ((UINT8 *) *Table,
- FileSize, (*Table)->Length);
- return (Status);
- }
- }
- return (AE_OK);
- }
- if (Actual > 0)
- {
- AcpiOsPrintf ("Warning - reading table, asked for %X got %X\n",
- FileSize, Actual);
- return (AE_OK);
- }
- AcpiOsPrintf ("Error - could not read the table file\n");
- AcpiOsFree (*Table);
- *Table = NULL;
- *TableLength = 0;
- return (AE_ERROR);
- }
- /*******************************************************************************
- *
- * FUNCTION: AeLocalLoadTable
- *
- * PARAMETERS: Table - pointer to a buffer containing the entire
- * table to be loaded
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to load a table from the caller's
- * buffer. The buffer must contain an entire ACPI Table including
- * a valid header. The header fields will be verified, and if it
- * is determined that the table is invalid, the call will fail.
- *
- ******************************************************************************/
- static ACPI_STATUS
- AeLocalLoadTable (
- ACPI_TABLE_HEADER *Table)
- {
- ACPI_STATUS Status = AE_OK;
- /* ACPI_TABLE_DESC TableInfo; */
- ACPI_FUNCTION_TRACE (AeLocalLoadTable);
- #if 0
- if (!Table)
- {
- return_ACPI_STATUS (AE_BAD_PARAMETER);
- }
- TableInfo.Pointer = Table;
- Status = AcpiTbRecognizeTable (&TableInfo, ACPI_TABLE_ALL);
- if (ACPI_FAILURE (Status))
- {
- return_ACPI_STATUS (Status);
- }
- /* Install the new table into the local data structures */
- Status = AcpiTbInstallTable (&TableInfo);
- if (ACPI_FAILURE (Status))
- {
- if (Status == AE_ALREADY_EXISTS)
- {
- /* Table already exists, no error */
- Status = AE_OK;
- }
- /* Free table allocated by AcpiTbGetTable */
- AcpiTbDeleteSingleTable (&TableInfo);
- return_ACPI_STATUS (Status);
- }
- #if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
- Status = AcpiNsLoadTable (TableInfo.InstalledDesc, AcpiGbl_RootNode);
- if (ACPI_FAILURE (Status))
- {
- /* Uninstall table and free the buffer */
- AcpiTbDeleteTablesByType (ACPI_TABLE_ID_DSDT);
- return_ACPI_STATUS (Status);
- }
- #endif
- #endif
- return_ACPI_STATUS (Status);
- }
- /*******************************************************************************
- *
- * FUNCTION: AcpiDbReadTableFromFile
- *
- * PARAMETERS: Filename - File where table is located
- * Table - Where a pointer to the table is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Get an ACPI table from a file
- *
- ******************************************************************************/
- ACPI_STATUS
- AcpiDbReadTableFromFile (
- char *Filename,
- ACPI_TABLE_HEADER **Table)
- {
- FILE *fp;
- UINT32 TableLength;
- ACPI_STATUS Status;
- /* Open the file */
- fp = fopen (Filename, "rb");
- if (!fp)
- {
- AcpiOsPrintf ("Could not open input file %s\n", Filename);
- return (AE_ERROR);
- }
- /* Get the entire file */
- fprintf (stderr, "Loading Acpi table from file %s\n", Filename);
- Status = AcpiDbReadTable (fp, Table, &TableLength);
- fclose(fp);
- if (ACPI_FAILURE (Status))
- {
- AcpiOsPrintf ("Could not get table from the file\n");
- return (Status);
- }
- return (AE_OK);
- }
- #endif
- /*******************************************************************************
- *
- * FUNCTION: AcpiDbGetTableFromFile
- *
- * PARAMETERS: Filename - File where table is located
- * ReturnTable - Where a pointer to the table is returned
- *
- * RETURN: Status
- *
- * DESCRIPTION: Load an ACPI table from a file
- *
- ******************************************************************************/
- ACPI_STATUS
- AcpiDbGetTableFromFile (
- char *Filename,
- ACPI_TABLE_HEADER **ReturnTable)
- {
- #ifdef ACPI_APPLICATION
- ACPI_STATUS Status;
- ACPI_TABLE_HEADER *Table;
- BOOLEAN IsAmlTable = TRUE;
- Status = AcpiDbReadTableFromFile (Filename, &Table);
- if (ACPI_FAILURE (Status))
- {
- return (Status);
- }
- #ifdef ACPI_DATA_TABLE_DISASSEMBLY
- IsAmlTable = AcpiUtIsAmlTable (Table);
- #endif
- if (IsAmlTable)
- {
- /* Attempt to recognize and install the table */
- Status = AeLocalLoadTable (Table);
- if (ACPI_FAILURE (Status))
- {
- if (Status == AE_ALREADY_EXISTS)
- {
- AcpiOsPrintf ("Table %4.4s is already installed\n",
- Table->Signature);
- }
- else
- {
- AcpiOsPrintf ("Could not install table, %s\n",
- AcpiFormatException (Status));
- }
- return (Status);
- }
- fprintf (stderr,
- "Acpi table [%4.4s] successfully installed and loaded\n",
- Table->Signature);
- }
- AcpiGbl_AcpiHardwarePresent = FALSE;
- if (ReturnTable)
- {
- *ReturnTable = Table;
- }
- #endif /* ACPI_APPLICATION */
- return (AE_OK);
- }
- #endif /* ACPI_DEBUGGER */