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Diffstat (limited to 'source/components/disassembler/dmnames.c')
| -rw-r--r-- | source/components/disassembler/dmnames.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/source/components/disassembler/dmnames.c b/source/components/disassembler/dmnames.c new file mode 100644 index 0000000..92e67c2 --- /dev/null +++ b/source/components/disassembler/dmnames.c @@ -0,0 +1,453 @@ +/******************************************************************************* + * + * Module Name: dmnames - AML disassembler, names, namestrings, pathnames + * + ******************************************************************************/ + +/* + * 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 "acpi.h" +#include "accommon.h" +#include "acparser.h" +#include "amlcode.h" +#include "acnamesp.h" +#include "acdisasm.h" + + +#ifdef ACPI_DISASSEMBLER + +#define _COMPONENT ACPI_CA_DEBUGGER + ACPI_MODULE_NAME ("dmnames") + +/* Local prototypes */ + +#ifdef ACPI_OBSOLETE_FUNCTIONS +void +AcpiDmDisplayPath ( + ACPI_PARSE_OBJECT *Op); +#endif + + +/******************************************************************************* + * + * FUNCTION: AcpiDmDumpName + * + * PARAMETERS: Name - 4 character ACPI name + * + * RETURN: Final length of name + * + * DESCRIPTION: Dump an ACPI name, minus any trailing underscores. + * + ******************************************************************************/ + +UINT32 +AcpiDmDumpName ( + UINT32 Name) +{ + UINT32 i; + UINT32 Length; + char NewName[4]; + + + /* Copy name locally in case the original name is not writeable */ + + *ACPI_CAST_PTR (UINT32, &NewName[0]) = Name; + + /* Ensure that the name is printable, even if we have to fix it */ + + AcpiUtRepairName (NewName); + + /* Remove all trailing underscores from the name */ + + Length = ACPI_NAME_SIZE; + for (i = (ACPI_NAME_SIZE - 1); i != 0; i--) + { + if (NewName[i] == '_') + { + Length--; + } + else + { + break; + } + } + + /* Dump the name, up to the start of the trailing underscores */ + + for (i = 0; i < Length; i++) + { + AcpiOsPrintf ("%c", NewName[i]); + } + + return (Length); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiPsDisplayObjectPathname + * + * PARAMETERS: WalkState - Current walk state + * Op - Object whose pathname is to be obtained + * + * RETURN: Status + * + * DESCRIPTION: Diplay the pathname associated with a named object. Two + * versions. One searches the parse tree (for parser-only + * applications suchas AcpiDump), and the other searches the + * ACPI namespace (the parse tree is probably deleted) + * + ******************************************************************************/ + +ACPI_STATUS +AcpiPsDisplayObjectPathname ( + ACPI_WALK_STATE *WalkState, + ACPI_PARSE_OBJECT *Op) +{ + ACPI_STATUS Status; + ACPI_NAMESPACE_NODE *Node; + ACPI_BUFFER Buffer; + UINT32 DebugLevel; + + + /* Save current debug level so we don't get extraneous debug output */ + + DebugLevel = AcpiDbgLevel; + AcpiDbgLevel = 0; + + /* Just get the Node out of the Op object */ + + Node = Op->Common.Node; + if (!Node) + { + /* Node not defined in this scope, look it up */ + + Status = AcpiNsLookup (WalkState->ScopeInfo, Op->Common.Value.String, + ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, + WalkState, &(Node)); + + if (ACPI_FAILURE (Status)) + { + /* + * We can't get the pathname since the object + * is not in the namespace. This can happen during single + * stepping where a dynamic named object is *about* to be created. + */ + AcpiOsPrintf (" [Path not found]"); + goto Exit; + } + + /* Save it for next time. */ + + Op->Common.Node = Node; + } + + /* Convert NamedDesc/handle to a full pathname */ + + Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; + Status = AcpiNsHandleToPathname (Node, &Buffer); + if (ACPI_FAILURE (Status)) + { + AcpiOsPrintf ("****Could not get pathname****)"); + goto Exit; + } + + AcpiOsPrintf (" (Path %s)", (char *) Buffer.Pointer); + ACPI_FREE (Buffer.Pointer); + + +Exit: + /* Restore the debug level */ + + AcpiDbgLevel = DebugLevel; + return (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmNamestring + * + * PARAMETERS: Name - ACPI Name string to store + * + * RETURN: None + * + * DESCRIPTION: Decode and dump an ACPI namestring. Handles prefix characters + * + ******************************************************************************/ + +void +AcpiDmNamestring ( + char *Name) +{ + UINT32 SegCount; + + + if (!Name) + { + return; + } + + /* Handle all Scope Prefix operators */ + + while (AcpiPsIsPrefixChar (ACPI_GET8 (Name))) + { + /* Append prefix character */ + + AcpiOsPrintf ("%1c", ACPI_GET8 (Name)); + Name++; + } + + switch (ACPI_GET8 (Name)) + { + case 0: + SegCount = 0; + break; + + case AML_DUAL_NAME_PREFIX: + SegCount = 2; + Name++; + break; + + case AML_MULTI_NAME_PREFIX_OP: + SegCount = (UINT32) ACPI_GET8 (Name + 1); + Name += 2; + break; + + default: + SegCount = 1; + break; + } + + while (SegCount) + { + /* Append Name segment */ + + AcpiDmDumpName (*ACPI_CAST_PTR (UINT32, Name)); + + SegCount--; + if (SegCount) + { + /* Not last name, append dot separator */ + + AcpiOsPrintf ("."); + } + Name += ACPI_NAME_SIZE; + } +} + + +#ifdef ACPI_OBSOLETE_FUNCTIONS +/******************************************************************************* + * + * FUNCTION: AcpiDmDisplayPath + * + * PARAMETERS: Op - Named Op whose path is to be constructed + * + * RETURN: None + * + * DESCRIPTION: Walk backwards from current scope and display the name + * of each previous level of scope up to the root scope + * (like "pwd" does with file systems) + * + ******************************************************************************/ + +void +AcpiDmDisplayPath ( + ACPI_PARSE_OBJECT *Op) +{ + ACPI_PARSE_OBJECT *Prev; + ACPI_PARSE_OBJECT *Search; + UINT32 Name; + BOOLEAN DoDot = FALSE; + ACPI_PARSE_OBJECT *NamePath; + const ACPI_OPCODE_INFO *OpInfo; + + + /* We are only interested in named objects */ + + OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); + if (!(OpInfo->Flags & AML_NSNODE)) + { + return; + } + + if (OpInfo->Flags & AML_CREATE) + { + /* Field creation - check for a fully qualified namepath */ + + if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) + { + NamePath = AcpiPsGetArg (Op, 3); + } + else + { + NamePath = AcpiPsGetArg (Op, 2); + } + + if ((NamePath) && + (NamePath->Common.Value.String) && + (NamePath->Common.Value.String[0] == '\\')) + { + AcpiDmNamestring (NamePath->Common.Value.String); + return; + } + } + + Prev = NULL; /* Start with Root Node */ + + while (Prev != Op) + { + /* Search upwards in the tree to find scope with "prev" as its parent */ + + Search = Op; + for (; ;) + { + if (Search->Common.Parent == Prev) + { + break; + } + + /* Go up one level */ + + Search = Search->Common.Parent; + } + + if (Prev) + { + OpInfo = AcpiPsGetOpcodeInfo (Search->Common.AmlOpcode); + if (!(OpInfo->Flags & AML_FIELD)) + { + /* Below root scope, append scope name */ + + if (DoDot) + { + /* Append dot */ + + AcpiOsPrintf ("."); + } + + if (OpInfo->Flags & AML_CREATE) + { + if (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP) + { + NamePath = AcpiPsGetArg (Op, 3); + } + else + { + NamePath = AcpiPsGetArg (Op, 2); + } + + if ((NamePath) && + (NamePath->Common.Value.String)) + { + AcpiDmDumpName (NamePath->Common.Value.String); + } + } + else + { + Name = AcpiPsGetName (Search); + AcpiDmDumpName ((char *) &Name); + } + + DoDot = TRUE; + } + } + Prev = Search; + } +} + + +/******************************************************************************* + * + * FUNCTION: AcpiDmValidateName + * + * PARAMETERS: Name - 4 character ACPI name + * + * RETURN: None + * + * DESCRIPTION: Lookup the name + * + ******************************************************************************/ + +void +AcpiDmValidateName ( + char *Name, + ACPI_PARSE_OBJECT *Op) +{ + + if ((!Name) || + (!Op->Common.Parent)) + { + return; + } + + if (!Op->Common.Node) + { + AcpiOsPrintf ( + " /**** Name not found or not accessible from this scope ****/ "); + } + + ACPI_PARSE_OBJECT *TargetOp; + + + if ((!Name) || + (!Op->Common.Parent)) + { + return; + } + + TargetOp = AcpiPsFind (Op, Name, 0, 0); + if (!TargetOp) + { + /* + * Didn't find the name in the parse tree. This may be + * a problem, or it may simply be one of the predefined names + * (such as _OS_). Rather than worry about looking up all + * the predefined names, just display the name as given + */ + AcpiOsPrintf ( + " /**** Name not found or not accessible from this scope ****/ "); + } +} +#endif + +#endif + + |
