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/*******************************************************************************
*
* Module Name: dbexec - debugger control method execution
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2011, 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>
#include <contrib/dev/acpica/include/acnamesp.h>
#ifdef ACPI_DEBUGGER
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME ("dbexec")
static ACPI_DB_METHOD_INFO AcpiGbl_DbMethodInfo;
#define DB_DEFAULT_PKG_ELEMENTS 33
/* Local prototypes */
static ACPI_STATUS
AcpiDbExecuteMethod (
ACPI_DB_METHOD_INFO *Info,
ACPI_BUFFER *ReturnObj);
static void
AcpiDbExecuteSetup (
ACPI_DB_METHOD_INFO *Info);
static UINT32
AcpiDbGetOutstandingAllocations (
void);
static void ACPI_SYSTEM_XFACE
AcpiDbMethodThread (
void *Context);
static ACPI_STATUS
AcpiDbExecutionWalk (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue);
static ACPI_STATUS
AcpiDbHexCharToValue (
int HexChar,
UINT8 *ReturnValue);
static ACPI_STATUS
AcpiDbConvertToPackage (
char *String,
ACPI_OBJECT *Object);
static ACPI_STATUS
AcpiDbConvertToObject (
ACPI_OBJECT_TYPE Type,
char *String,
ACPI_OBJECT *Object);
static void
AcpiDbDeleteObjects (
UINT32 Count,
ACPI_OBJECT *Objects);
/*******************************************************************************
*
* FUNCTION: AcpiDbHexCharToValue
*
* PARAMETERS: HexChar - Ascii Hex digit, 0-9|a-f|A-F
* ReturnValue - Where the converted value is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a single hex character to a 4-bit number (0-16).
*
******************************************************************************/
static ACPI_STATUS
AcpiDbHexCharToValue (
int HexChar,
UINT8 *ReturnValue)
{
UINT8 Value;
/* Digit must be ascii [0-9a-fA-F] */
if (!ACPI_IS_XDIGIT (HexChar))
{
return (AE_BAD_HEX_CONSTANT);
}
if (HexChar <= 0x39)
{
Value = (UINT8) (HexChar - 0x30);
}
else
{
Value = (UINT8) (ACPI_TOUPPER (HexChar) - 0x37);
}
*ReturnValue = Value;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbHexByteToBinary
*
* PARAMETERS: HexByte - Double hex digit (0x00 - 0xFF) in format:
* HiByte then LoByte.
* ReturnValue - Where the converted value is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert two hex characters to an 8 bit number (0 - 255).
*
******************************************************************************/
static ACPI_STATUS
AcpiDbHexByteToBinary (
char *HexByte,
UINT8 *ReturnValue)
{
UINT8 Local0;
UINT8 Local1;
ACPI_STATUS Status;
/* High byte */
Status = AcpiDbHexCharToValue (HexByte[0], &Local0);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Low byte */
Status = AcpiDbHexCharToValue (HexByte[1], &Local1);
if (ACPI_FAILURE (Status))
{
return (Status);
}
*ReturnValue = (UINT8) ((Local0 << 4) | Local1);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbConvertToBuffer
*
* PARAMETERS: String - Input string to be converted
* Object - Where the buffer object is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a string to a buffer object. String is treated a list
* of buffer elements, each separated by a space or comma.
*
******************************************************************************/
static ACPI_STATUS
AcpiDbConvertToBuffer (
char *String,
ACPI_OBJECT *Object)
{
UINT32 i;
UINT32 j;
UINT32 Length;
UINT8 *Buffer;
ACPI_STATUS Status;
/* Generate the final buffer length */
for (i = 0, Length = 0; String[i];)
{
i+=2;
Length++;
while (String[i] &&
((String[i] == ',') || (String[i] == ' ')))
{
i++;
}
}
Buffer = ACPI_ALLOCATE (Length);
if (!Buffer)
{
return (AE_NO_MEMORY);
}
/* Convert the command line bytes to the buffer */
for (i = 0, j = 0; String[i];)
{
Status = AcpiDbHexByteToBinary (&String[i], &Buffer[j]);
if (ACPI_FAILURE (Status))
{
ACPI_FREE (Buffer);
return (Status);
}
j++;
i+=2;
while (String[i] &&
((String[i] == ',') || (String[i] == ' ')))
{
i++;
}
}
Object->Type = ACPI_TYPE_BUFFER;
Object->Buffer.Pointer = Buffer;
Object->Buffer.Length = Length;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbConvertToPackage
*
* PARAMETERS: String - Input string to be converted
* Object - Where the package object is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a string to a package object. Handles nested packages
* via recursion with AcpiDbConvertToObject.
*
******************************************************************************/
static ACPI_STATUS
AcpiDbConvertToPackage (
char *String,
ACPI_OBJECT *Object)
{
char *This;
char *Next;
UINT32 i;
ACPI_OBJECT_TYPE Type;
ACPI_OBJECT *Elements;
ACPI_STATUS Status;
Elements = ACPI_ALLOCATE_ZEROED (
DB_DEFAULT_PKG_ELEMENTS * sizeof (ACPI_OBJECT));
This = String;
for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++)
{
This = AcpiDbGetNextToken (This, &Next, &Type);
if (!This)
{
break;
}
/* Recursive call to convert each package element */
Status = AcpiDbConvertToObject (Type, This, &Elements[i]);
if (ACPI_FAILURE (Status))
{
AcpiDbDeleteObjects (i + 1, Elements);
ACPI_FREE (Elements);
return (Status);
}
This = Next;
}
Object->Type = ACPI_TYPE_PACKAGE;
Object->Package.Count = i;
Object->Package.Elements = Elements;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbConvertToObject
*
* PARAMETERS: Type - Object type as determined by parser
* String - Input string to be converted
* Object - Where the new object is returned
*
* RETURN: Status
*
* DESCRIPTION: Convert a typed and tokenized string to an ACPI_OBJECT. Typing:
* 1) String objects were surrounded by quotes.
* 2) Buffer objects were surrounded by parentheses.
* 3) Package objects were surrounded by brackets "[]".
* 4) All standalone tokens are treated as integers.
*
******************************************************************************/
static ACPI_STATUS
AcpiDbConvertToObject (
ACPI_OBJECT_TYPE Type,
char *String,
ACPI_OBJECT *Object)
{
ACPI_STATUS Status = AE_OK;
switch (Type)
{
case ACPI_TYPE_STRING:
Object->Type = ACPI_TYPE_STRING;
Object->String.Pointer = String;
Object->String.Length = (UINT32) ACPI_STRLEN (String);
break;
case ACPI_TYPE_BUFFER:
Status = AcpiDbConvertToBuffer (String, Object);
break;
case ACPI_TYPE_PACKAGE:
Status = AcpiDbConvertToPackage (String, Object);
break;
default:
Object->Type = ACPI_TYPE_INTEGER;
Status = AcpiUtStrtoul64 (String, 16, &Object->Integer.Value);
break;
}
return (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbDeleteObjects
*
* PARAMETERS: Count - Count of objects in the list
* Objects - Array of ACPI_OBJECTs to be deleted
*
* RETURN: None
*
* DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested
* packages via recursion.
*
******************************************************************************/
static void
AcpiDbDeleteObjects (
UINT32 Count,
ACPI_OBJECT *Objects)
{
UINT32 i;
for (i = 0; i < Count; i++)
{
switch (Objects[i].Type)
{
case ACPI_TYPE_BUFFER:
ACPI_FREE (Objects[i].Buffer.Pointer);
break;
case ACPI_TYPE_PACKAGE:
/* Recursive call to delete package elements */
AcpiDbDeleteObjects (Objects[i].Package.Count,
Objects[i].Package.Elements);
/* Free the elements array */
ACPI_FREE (Objects[i].Package.Elements);
break;
default:
break;
}
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDbExecuteMethod
*
* PARAMETERS: Info - Valid info segment
* ReturnObj - Where to put return object
*
* RETURN: Status
*
* DESCRIPTION: Execute a control method.
*
******************************************************************************/
static ACPI_STATUS
AcpiDbExecuteMethod (
ACPI_DB_METHOD_INFO *Info,
ACPI_BUFFER *ReturnObj)
{
ACPI_STATUS Status;
ACPI_OBJECT_LIST ParamObjects;
ACPI_OBJECT Params[ACPI_METHOD_NUM_ARGS];
ACPI_HANDLE Handle;
ACPI_DEVICE_INFO *ObjInfo;
UINT32 i;
ACPI_FUNCTION_TRACE (DbExecuteMethod);
if (AcpiGbl_DbOutputToFile && !AcpiDbgLevel)
{
AcpiOsPrintf ("Warning: debug output is not enabled!\n");
}
/* Get the NS node, determines existence also */
Status = AcpiGetHandle (NULL, Info->Pathname, &Handle);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Get the object info for number of method parameters */
Status = AcpiGetObjectInfo (Handle, &ObjInfo);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
ParamObjects.Pointer = NULL;
ParamObjects.Count = 0;
if (ObjInfo->Type == ACPI_TYPE_METHOD)
{
/* Are there arguments to the method? */
i = 0;
if (Info->Args && Info->Args[0])
{
/* Get arguments passed on the command line */
for (; Info->Args[i] &&
(i < ACPI_METHOD_NUM_ARGS) &&
(i < ObjInfo->ParamCount);
i++)
{
/* Convert input string (token) to an actual ACPI_OBJECT */
Status = AcpiDbConvertToObject (Info->Types[i],
Info->Args[i], &Params[i]);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"While parsing method arguments"));
goto Cleanup;
}
}
}
/* Create additional "default" parameters as needed */
if (i < ObjInfo->ParamCount)
{
AcpiOsPrintf ("Adding %u arguments containing default values\n",
ObjInfo->ParamCount - i);
for (; i < ObjInfo->ParamCount; i++)
{
switch (i)
{
case 0:
Params[0].Type = ACPI_TYPE_INTEGER;
Params[0].Integer.Value = 0x01020304;
break;
case 1:
Params[1].Type = ACPI_TYPE_STRING;
Params[1].String.Length = 12;
Params[1].String.Pointer = "AML Debugger";
break;
default:
Params[i].Type = ACPI_TYPE_INTEGER;
Params[i].Integer.Value = i * (UINT64) 0x1000;
break;
}
}
}
ParamObjects.Count = ObjInfo->ParamCount;
ParamObjects.Pointer = Params;
}
/* Prepare for a return object of arbitrary size */
ReturnObj->Pointer = AcpiGbl_DbBuffer;
ReturnObj->Length = ACPI_DEBUG_BUFFER_SIZE;
/* Do the actual method execution */
AcpiGbl_MethodExecuting = TRUE;
Status = AcpiEvaluateObject (NULL,
Info->Pathname, &ParamObjects, ReturnObj);
AcpiGbl_CmSingleStep = FALSE;
AcpiGbl_MethodExecuting = FALSE;
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status,
"while executing %s from debugger", Info->Pathname));
if (Status == AE_BUFFER_OVERFLOW)
{
ACPI_ERROR ((AE_INFO,
"Possible overflow of internal debugger buffer (size 0x%X needed 0x%X)",
ACPI_DEBUG_BUFFER_SIZE, (UINT32) ReturnObj->Length));
}
}
Cleanup:
AcpiDbDeleteObjects (ObjInfo->ParamCount, Params);
ACPI_FREE (ObjInfo);
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbExecuteSetup
*
* PARAMETERS: Info - Valid method info
*
* RETURN: None
*
* DESCRIPTION: Setup info segment prior to method execution
*
******************************************************************************/
static void
AcpiDbExecuteSetup (
ACPI_DB_METHOD_INFO *Info)
{
/* Catenate the current scope to the supplied name */
Info->Pathname[0] = 0;
if ((Info->Name[0] != '\\') &&
(Info->Name[0] != '/'))
{
ACPI_STRCAT (Info->Pathname, AcpiGbl_DbScopeBuf);
}
ACPI_STRCAT (Info->Pathname, Info->Name);
AcpiDbPrepNamestring (Info->Pathname);
AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
AcpiOsPrintf ("Executing %s\n", Info->Pathname);
if (Info->Flags & EX_SINGLE_STEP)
{
AcpiGbl_CmSingleStep = TRUE;
AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}
else
{
/* No single step, allow redirection to a file */
AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
}
}
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
UINT32
AcpiDbGetCacheInfo (
ACPI_MEMORY_LIST *Cache)
{
return (Cache->TotalAllocated - Cache->TotalFreed - Cache->CurrentDepth);
}
#endif
/*******************************************************************************
*
* FUNCTION: AcpiDbGetOutstandingAllocations
*
* PARAMETERS: None
*
* RETURN: Current global allocation count minus cache entries
*
* DESCRIPTION: Determine the current number of "outstanding" allocations --
* those allocations that have not been freed and also are not
* in one of the various object caches.
*
******************************************************************************/
static UINT32
AcpiDbGetOutstandingAllocations (
void)
{
UINT32 Outstanding = 0;
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
Outstanding += AcpiDbGetCacheInfo (AcpiGbl_StateCache);
Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeCache);
Outstanding += AcpiDbGetCacheInfo (AcpiGbl_PsNodeExtCache);
Outstanding += AcpiDbGetCacheInfo (AcpiGbl_OperandCache);
#endif
return (Outstanding);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbExecutionWalk
*
* PARAMETERS: WALK_CALLBACK
*
* RETURN: Status
*
* DESCRIPTION: Execute a control method. Name is relative to the current
* scope.
*
******************************************************************************/
static ACPI_STATUS
AcpiDbExecutionWalk (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
ACPI_BUFFER ReturnObj;
ACPI_STATUS Status;
ObjDesc = AcpiNsGetAttachedObject (Node);
if (ObjDesc->Method.ParamCount)
{
return (AE_OK);
}
ReturnObj.Pointer = NULL;
ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
AcpiNsPrintNodePathname (Node, "Execute");
/* Do the actual method execution */
AcpiOsPrintf ("\n");
AcpiGbl_MethodExecuting = TRUE;
Status = AcpiEvaluateObject (Node, NULL, NULL, &ReturnObj);
AcpiOsPrintf ("[%4.4s] returned %s\n", AcpiUtGetNodeName (Node),
AcpiFormatException (Status));
AcpiGbl_MethodExecuting = FALSE;
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbExecute
*
* PARAMETERS: Name - Name of method to execute
* Args - Parameters to the method
* Flags - single step/no single step
*
* RETURN: None
*
* DESCRIPTION: Execute a control method. Name is relative to the current
* scope.
*
******************************************************************************/
void
AcpiDbExecute (
char *Name,
char **Args,
ACPI_OBJECT_TYPE *Types,
UINT32 Flags)
{
ACPI_STATUS Status;
ACPI_BUFFER ReturnObj;
char *NameString;
#ifdef ACPI_DEBUG_OUTPUT
UINT32 PreviousAllocations;
UINT32 Allocations;
/* Memory allocation tracking */
PreviousAllocations = AcpiDbGetOutstandingAllocations ();
#endif
if (*Name == '*')
{
(void) AcpiWalkNamespace (ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, AcpiDbExecutionWalk, NULL, NULL, NULL);
return;
}
else
{
NameString = ACPI_ALLOCATE (ACPI_STRLEN (Name) + 1);
if (!NameString)
{
return;
}
ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));
ACPI_STRCPY (NameString, Name);
AcpiUtStrupr (NameString);
AcpiGbl_DbMethodInfo.Name = NameString;
AcpiGbl_DbMethodInfo.Args = Args;
AcpiGbl_DbMethodInfo.Types = Types;
AcpiGbl_DbMethodInfo.Flags = Flags;
ReturnObj.Pointer = NULL;
ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
Status = AcpiDbExecuteMethod (&AcpiGbl_DbMethodInfo, &ReturnObj);
ACPI_FREE (NameString);
}
/*
* Allow any handlers in separate threads to complete.
* (Such as Notify handlers invoked from AML executed above).
*/
AcpiOsSleep ((UINT64) 10);
#ifdef ACPI_DEBUG_OUTPUT
/* Memory allocation tracking */
Allocations = AcpiDbGetOutstandingAllocations () - PreviousAllocations;
AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
if (Allocations > 0)
{
AcpiOsPrintf ("Outstanding: 0x%X allocations after execution\n",
Allocations);
}
#endif
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Execution of %s failed with status %s\n",
AcpiGbl_DbMethodInfo.Pathname, AcpiFormatException (Status));
}
else
{
/* Display a return object, if any */
if (ReturnObj.Length)
{
AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n",
AcpiGbl_DbMethodInfo.Pathname, ReturnObj.Pointer,
(UINT32) ReturnObj.Length);
AcpiDbDumpExternalObject (ReturnObj.Pointer, 1);
}
else
{
AcpiOsPrintf ("No return object from execution of %s\n",
AcpiGbl_DbMethodInfo.Pathname);
}
}
AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
}
/*******************************************************************************
*
* FUNCTION: AcpiDbMethodThread
*
* PARAMETERS: Context - Execution info segment
*
* RETURN: None
*
* DESCRIPTION: Debugger execute thread. Waits for a command line, then
* simply dispatches it.
*
******************************************************************************/
static void ACPI_SYSTEM_XFACE
AcpiDbMethodThread (
void *Context)
{
ACPI_STATUS Status;
ACPI_DB_METHOD_INFO *Info = Context;
ACPI_DB_METHOD_INFO LocalInfo;
UINT32 i;
UINT8 Allow;
ACPI_BUFFER ReturnObj;
/*
* AcpiGbl_DbMethodInfo.Arguments will be passed as method arguments.
* Prevent AcpiGbl_DbMethodInfo from being modified by multiple threads
* concurrently.
*
* Note: The arguments we are passing are used by the ASL test suite
* (aslts). Do not change them without updating the tests.
*/
(void) AcpiOsWaitSemaphore (Info->InfoGate, 1, ACPI_WAIT_FOREVER);
if (Info->InitArgs)
{
AcpiDbUInt32ToHexString (Info->NumCreated, Info->IndexOfThreadStr);
AcpiDbUInt32ToHexString ((UINT32) AcpiOsGetThreadId (), Info->IdOfThreadStr);
}
if (Info->Threads && (Info->NumCreated < Info->NumThreads))
{
Info->Threads[Info->NumCreated++] = AcpiOsGetThreadId();
}
LocalInfo = *Info;
LocalInfo.Args = LocalInfo.Arguments;
LocalInfo.Arguments[0] = LocalInfo.NumThreadsStr;
LocalInfo.Arguments[1] = LocalInfo.IdOfThreadStr;
LocalInfo.Arguments[2] = LocalInfo.IndexOfThreadStr;
LocalInfo.Arguments[3] = NULL;
LocalInfo.Types = LocalInfo.ArgTypes;
(void) AcpiOsSignalSemaphore (Info->InfoGate, 1);
for (i = 0; i < Info->NumLoops; i++)
{
Status = AcpiDbExecuteMethod (&LocalInfo, &ReturnObj);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("%s During execution of %s at iteration %X\n",
AcpiFormatException (Status), Info->Pathname, i);
if (Status == AE_ABORT_METHOD)
{
break;
}
}
#if 0
if ((i % 100) == 0)
{
AcpiOsPrintf ("%u executions, Thread 0x%x\n", i, AcpiOsGetThreadId ());
}
if (ReturnObj.Length)
{
AcpiOsPrintf ("Execution of %s returned object %p Buflen %X\n",
Info->Pathname, ReturnObj.Pointer, (UINT32) ReturnObj.Length);
AcpiDbDumpExternalObject (ReturnObj.Pointer, 1);
}
#endif
}
/* Signal our completion */
Allow = 0;
(void) AcpiOsWaitSemaphore (Info->ThreadCompleteGate, 1, ACPI_WAIT_FOREVER);
Info->NumCompleted++;
if (Info->NumCompleted == Info->NumThreads)
{
/* Do signal for main thread once only */
Allow = 1;
}
(void) AcpiOsSignalSemaphore (Info->ThreadCompleteGate, 1);
if (Allow)
{
Status = AcpiOsSignalSemaphore (Info->MainThreadGate, 1);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not signal debugger thread sync semaphore, %s\n",
AcpiFormatException (Status));
}
}
}
/*******************************************************************************
*
* FUNCTION: AcpiDbCreateExecutionThreads
*
* PARAMETERS: NumThreadsArg - Number of threads to create
* NumLoopsArg - Loop count for the thread(s)
* MethodNameArg - Control method to execute
*
* RETURN: None
*
* DESCRIPTION: Create threads to execute method(s)
*
******************************************************************************/
void
AcpiDbCreateExecutionThreads (
char *NumThreadsArg,
char *NumLoopsArg,
char *MethodNameArg)
{
ACPI_STATUS Status;
UINT32 NumThreads;
UINT32 NumLoops;
UINT32 i;
UINT32 Size;
ACPI_MUTEX MainThreadGate;
ACPI_MUTEX ThreadCompleteGate;
ACPI_MUTEX InfoGate;
/* Get the arguments */
NumThreads = ACPI_STRTOUL (NumThreadsArg, NULL, 0);
NumLoops = ACPI_STRTOUL (NumLoopsArg, NULL, 0);
if (!NumThreads || !NumLoops)
{
AcpiOsPrintf ("Bad argument: Threads %X, Loops %X\n",
NumThreads, NumLoops);
return;
}
/*
* Create the semaphore for synchronization of
* the created threads with the main thread.
*/
Status = AcpiOsCreateSemaphore (1, 0, &MainThreadGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore for synchronization with the main thread, %s\n",
AcpiFormatException (Status));
return;
}
/*
* Create the semaphore for synchronization
* between the created threads.
*/
Status = AcpiOsCreateSemaphore (1, 1, &ThreadCompleteGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore for synchronization between the created threads, %s\n",
AcpiFormatException (Status));
(void) AcpiOsDeleteSemaphore (MainThreadGate);
return;
}
Status = AcpiOsCreateSemaphore (1, 1, &InfoGate);
if (ACPI_FAILURE (Status))
{
AcpiOsPrintf ("Could not create semaphore for synchronization of AcpiGbl_DbMethodInfo, %s\n",
AcpiFormatException (Status));
(void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
(void) AcpiOsDeleteSemaphore (MainThreadGate);
return;
}
ACPI_MEMSET (&AcpiGbl_DbMethodInfo, 0, sizeof (ACPI_DB_METHOD_INFO));
/* Array to store IDs of threads */
AcpiGbl_DbMethodInfo.NumThreads = NumThreads;
Size = sizeof (ACPI_THREAD_ID) * AcpiGbl_DbMethodInfo.NumThreads;
AcpiGbl_DbMethodInfo.Threads = AcpiOsAllocate (Size);
if (AcpiGbl_DbMethodInfo.Threads == NULL)
{
AcpiOsPrintf ("No memory for thread IDs array\n");
(void) AcpiOsDeleteSemaphore (MainThreadGate);
(void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
(void) AcpiOsDeleteSemaphore (InfoGate);
return;
}
ACPI_MEMSET (AcpiGbl_DbMethodInfo.Threads, 0, Size);
/* Setup the context to be passed to each thread */
AcpiGbl_DbMethodInfo.Name = MethodNameArg;
AcpiGbl_DbMethodInfo.Flags = 0;
AcpiGbl_DbMethodInfo.NumLoops = NumLoops;
AcpiGbl_DbMethodInfo.MainThreadGate = MainThreadGate;
AcpiGbl_DbMethodInfo.ThreadCompleteGate = ThreadCompleteGate;
AcpiGbl_DbMethodInfo.InfoGate = InfoGate;
/* Init arguments to be passed to method */
AcpiGbl_DbMethodInfo.InitArgs = 1;
AcpiGbl_DbMethodInfo.Args = AcpiGbl_DbMethodInfo.Arguments;
AcpiGbl_DbMethodInfo.Arguments[0] = AcpiGbl_DbMethodInfo.NumThreadsStr;
AcpiGbl_DbMethodInfo.Arguments[1] = AcpiGbl_DbMethodInfo.IdOfThreadStr;
AcpiGbl_DbMethodInfo.Arguments[2] = AcpiGbl_DbMethodInfo.IndexOfThreadStr;
AcpiGbl_DbMethodInfo.Arguments[3] = NULL;
AcpiGbl_DbMethodInfo.Types = AcpiGbl_DbMethodInfo.ArgTypes;
AcpiGbl_DbMethodInfo.ArgTypes[0] = ACPI_TYPE_INTEGER;
AcpiGbl_DbMethodInfo.ArgTypes[1] = ACPI_TYPE_INTEGER;
AcpiGbl_DbMethodInfo.ArgTypes[2] = ACPI_TYPE_INTEGER;
AcpiDbUInt32ToHexString (NumThreads, AcpiGbl_DbMethodInfo.NumThreadsStr);
AcpiDbExecuteSetup (&AcpiGbl_DbMethodInfo);
/* Create the threads */
AcpiOsPrintf ("Creating %X threads to execute %X times each\n",
NumThreads, NumLoops);
for (i = 0; i < (NumThreads); i++)
{
Status = AcpiOsExecute (OSL_DEBUGGER_THREAD, AcpiDbMethodThread,
&AcpiGbl_DbMethodInfo);
if (ACPI_FAILURE (Status))
{
break;
}
}
/* Wait for all threads to complete */
(void) AcpiOsWaitSemaphore (MainThreadGate, 1, ACPI_WAIT_FOREVER);
AcpiDbSetOutputDestination (ACPI_DB_DUPLICATE_OUTPUT);
AcpiOsPrintf ("All threads (%X) have completed\n", NumThreads);
AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
/* Cleanup and exit */
(void) AcpiOsDeleteSemaphore (MainThreadGate);
(void) AcpiOsDeleteSemaphore (ThreadCompleteGate);
(void) AcpiOsDeleteSemaphore (InfoGate);
AcpiOsFree (AcpiGbl_DbMethodInfo.Threads);
AcpiGbl_DbMethodInfo.Threads = NULL;
}
#endif /* ACPI_DEBUGGER */