[mirror_edk2.git] / ShellPkg / Library / UefiDpLib / DpUtilities.c

/** @file\r
  Utility functions used by the Dp application.\r
\r
  Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this 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
\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/TimerLib.h>\r
#include <Library/PeCoffGetEntryPointLib.h>\r
#include <Library/PrintLib.h>\r
#include <Library/HiiLib.h>\r
#include <Library/PcdLib.h>\r
#include <Library/UefiLib.h>\r
#include <Library/DevicePathLib.h>\r
#include <Library/HandleParsingLib.h>\r
\r
#include <Pi/PiFirmwareFile.h>\r
#include <Library/DxeServicesLib.h>\r
\r
#include <Protocol/LoadedImage.h>\r
#include <Protocol/DriverBinding.h>\r
#include <Protocol/ComponentName2.h>\r
#include <Protocol/DevicePath.h>\r
\r
#include <Guid/Performance.h>\r
\r
#include "Dp.h"\r
#include "Literals.h"\r
#include "DpInternal.h"\r
\r
/** \r
  Calculate an event's duration in timer ticks.\r
  \r
  Given the count direction and the event's start and end timer values,\r
  calculate the duration of the event in timer ticks.  Information for\r
  the current measurement is pointed to by the parameter.\r
  \r
  If the measurement's start time is 1, it indicates that the developer\r
  is indicating that the measurement began at the release of reset.\r
  The start time is adjusted to the timer's starting count before performing\r
  the elapsed time calculation.\r
  \r
  The calculated duration, in ticks, is the absolute difference between\r
  the measurement's ending and starting counts.\r
  \r
  @param Measurement   Pointer to a MEASUREMENT_RECORD structure containing\r
                       data for the current measurement.\r
  \r
  @return              The 64-bit duration of the event.\r
**/\r
UINT64\r
GetDuration (\r
  IN OUT MEASUREMENT_RECORD   *Measurement\r
  )\r
{\r
  UINT64    Duration;\r
  BOOLEAN   Error;\r
\r
  // PERF_START macros are called with a value of 1 to indicate\r
  // the beginning of time.  So, adjust the start ticker value\r
  // to the real beginning of time.\r
  // Assumes no wraparound.  Even then, there is a very low probability\r
  // of having a valid StartTicker value of 1.\r
  if (Measurement->StartTimeStamp == 1) {\r
    Measurement->StartTimeStamp = TimerInfo.StartCount;\r
  }\r
  if (TimerInfo.CountUp) {\r
    Duration = Measurement->EndTimeStamp - Measurement->StartTimeStamp;\r
    Error = (BOOLEAN)(Duration > Measurement->EndTimeStamp);\r
  }\r
  else {\r
    Duration = Measurement->StartTimeStamp - Measurement->EndTimeStamp;\r
    Error = (BOOLEAN)(Duration > Measurement->StartTimeStamp);\r
  }\r
\r
  if (Error) {\r
    DEBUG ((EFI_D_ERROR, ALit_TimerLibError));\r
    Duration = 0;\r
  }\r
  return Duration;\r
}\r
\r
/** \r
  Determine whether the Measurement record is for an EFI Phase.\r
  \r
  The Token and Module members of the measurement record are checked.\r
  Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.\r
  \r
  @param[in]  Measurement A pointer to the Measurement record to test.\r
  \r
  @retval     TRUE        The measurement record is for an EFI Phase.\r
  @retval     FALSE       The measurement record is NOT for an EFI Phase.\r
**/\r
BOOLEAN\r
IsPhase(\r
  IN MEASUREMENT_RECORD        *Measurement\r
  )\r
{\r
  BOOLEAN   RetVal;\r
\r
  RetVal = (BOOLEAN)( ( *Measurement->Module == '\0')                               &&\r
            ((AsciiStrnCmp (Measurement->Token, ALit_SEC, PERF_TOKEN_LENGTH) == 0)    ||\r
             (AsciiStrnCmp (Measurement->Token, ALit_PEI, PERF_TOKEN_LENGTH) == 0)    ||\r
             (AsciiStrnCmp (Measurement->Token, ALit_DXE, PERF_TOKEN_LENGTH) == 0)    ||\r
             (AsciiStrnCmp (Measurement->Token, ALit_BDS, PERF_TOKEN_LENGTH) == 0))\r
            );\r
  return RetVal;\r
}\r
\r
/** \r
  Get the file name portion of the Pdb File Name.\r
  \r
  The portion of the Pdb File Name between the last backslash and\r
  either a following period or the end of the string is converted\r
  to Unicode and copied into UnicodeBuffer.  The name is truncated,\r
  if necessary, to ensure that UnicodeBuffer is not overrun.\r
  \r
  @param[in]  PdbFileName     Pdb file name.\r
  @param[out] UnicodeBuffer   The resultant Unicode File Name.\r
  \r
**/\r
VOID\r
GetShortPdbFileName (\r
  IN  CHAR8     *PdbFileName,\r
  OUT CHAR16    *UnicodeBuffer\r
  )\r
{\r
  UINTN IndexA;     // Current work location within an ASCII string.\r
  UINTN IndexU;     // Current work location within a Unicode string.\r
  UINTN StartIndex;\r
  UINTN EndIndex;\r
\r
  ZeroMem (UnicodeBuffer, DXE_PERFORMANCE_STRING_LENGTH * sizeof (CHAR16));\r
\r
  if (PdbFileName == NULL) {\r
    StrCpy (UnicodeBuffer, L" ");\r
  } else {\r
    StartIndex = 0;\r
    for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++)\r
      ;\r
    for (IndexA = 0; PdbFileName[IndexA] != 0; IndexA++) {\r
      if (PdbFileName[IndexA] == '\\') {\r
        StartIndex = IndexA + 1;\r
      }\r
\r
      if (PdbFileName[IndexA] == '.') {\r
        EndIndex = IndexA;\r
      }\r
    }\r
\r
    IndexU = 0;\r
    for (IndexA = StartIndex; IndexA < EndIndex; IndexA++) {\r
      UnicodeBuffer[IndexU] = (CHAR16) PdbFileName[IndexA];\r
      IndexU++;\r
      if (IndexU >= DXE_PERFORMANCE_STRING_LENGTH) {\r
        UnicodeBuffer[DXE_PERFORMANCE_STRING_LENGTH] = 0;\r
        break;\r
      }\r
    }\r
  }\r
}\r
\r
/** \r
  Get a human readable name for an image handle.\r
  The following methods will be tried orderly:\r
    1. Image PDB\r
    2. ComponentName2 protocol\r
    3. FFS UI section\r
    4. Image GUID\r
    5. Image DevicePath\r
    6. Unknown Driver Name\r
\r
  @param[in]    Handle\r
\r
  @post   The resulting Unicode name string is stored in the\r
          mGaugeString global array.\r
\r
**/\r
VOID\r
GetNameFromHandle (\r
  IN EFI_HANDLE   Handle\r
  )\r
{\r
  EFI_STATUS                  Status;\r
  EFI_LOADED_IMAGE_PROTOCOL   *Image;\r
  CHAR8                       *PdbFileName;\r
  EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;\r
  EFI_STRING                  StringPtr;\r
  EFI_DEVICE_PATH_PROTOCOL    *LoadedImageDevicePath;\r
  EFI_DEVICE_PATH_PROTOCOL    *DevicePath;\r
  EFI_GUID                    *NameGuid;\r
  CHAR16                      *NameString;\r
  UINTN                       StringSize;\r
  CHAR8                       *PlatformLanguage;\r
  EFI_COMPONENT_NAME2_PROTOCOL      *ComponentName2;\r
\r
  //\r
  // Method 1: Get the name string from image PDB\r
  //\r
  Status = gBS->HandleProtocol (\r
                  Handle,\r
                  &gEfiLoadedImageProtocolGuid,\r
                  (VOID **) &Image\r
                  );\r
\r
  if (EFI_ERROR (Status)) {\r
    Status = gBS->OpenProtocol (\r
                    Handle,\r
                    &gEfiDriverBindingProtocolGuid,\r
                    (VOID **) &DriverBinding,\r
                    NULL,\r
                    NULL,\r
                    EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
                    );\r
    if (!EFI_ERROR (Status)) {\r
      Status = gBS->HandleProtocol (\r
                      DriverBinding->ImageHandle,\r
                      &gEfiLoadedImageProtocolGuid,\r
                      (VOID **) &Image\r
                      );\r
    }\r
  }\r
\r
  if (!EFI_ERROR (Status)) {\r
    PdbFileName = PeCoffLoaderGetPdbPointer (Image->ImageBase);\r
\r
    if (PdbFileName != NULL) {\r
      GetShortPdbFileName (PdbFileName, mGaugeString);\r
      return;\r
    }\r
  }\r
\r
  //\r
  // Method 2: Get the name string from ComponentName2 protocol\r
  //\r
  Status = gBS->HandleProtocol (\r
                  Handle,\r
                  &gEfiComponentName2ProtocolGuid,\r
                  (VOID **) &ComponentName2\r
                  );\r
  if (!EFI_ERROR (Status)) {\r
    //\r
    // Get the current platform language setting\r
    //\r
    PlatformLanguage = GetBestLanguageForDriver(ComponentName2->SupportedLanguages, NULL, FALSE);\r
    Status = ComponentName2->GetDriverName (\r
                               ComponentName2,\r
                               PlatformLanguage != NULL ? PlatformLanguage : "en-US",\r
                               &StringPtr\r
                               );\r
    if (!EFI_ERROR (Status)) {\r
      SHELL_FREE_NON_NULL (PlatformLanguage);\r
      StrnCpy (mGaugeString, StringPtr, DP_GAUGE_STRING_LENGTH);\r
      mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;\r
      return;\r
    }\r
  }\r
\r
  Status = gBS->HandleProtocol (\r
                  Handle,\r
                  &gEfiLoadedImageDevicePathProtocolGuid,\r
                  (VOID **) &LoadedImageDevicePath\r
                  );\r
  if (!EFI_ERROR (Status) && (LoadedImageDevicePath != NULL)) {\r
    DevicePath = LoadedImageDevicePath;\r
\r
    //\r
    // Try to get image GUID from LoadedImageDevicePath protocol\r
    //\r
    NameGuid = NULL;\r
    while (!IsDevicePathEndType (DevicePath)) {\r
      NameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) DevicePath);\r
      if (NameGuid != NULL) {\r
        break;\r
      }\r
      DevicePath = NextDevicePathNode (DevicePath);\r
    }\r
\r
    if (NameGuid != NULL) {\r
      //\r
      // Try to get the image's FFS UI section by image GUID\r
      //\r
      NameString = NULL;\r
      StringSize = 0;\r
      Status = GetSectionFromAnyFv (\r
                NameGuid,\r
                EFI_SECTION_USER_INTERFACE,\r
                0,\r
                (VOID **) &NameString,\r
                &StringSize\r
                );\r
\r
      if (!EFI_ERROR (Status)) {\r
        //\r
        // Method 3. Get the name string from FFS UI section\r
        //\r
        StrnCpy (mGaugeString, NameString, DP_GAUGE_STRING_LENGTH);\r
        mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;\r
        FreePool (NameString);\r
      } else {\r
        //\r
        // Method 4: Get the name string from image GUID\r
        //\r
        UnicodeSPrint (mGaugeString, sizeof (mGaugeString), L"%g", NameGuid);\r
      }\r
      return;\r
    } else {\r
      //\r
      // Method 5: Get the name string from image DevicePath\r
      //\r
      NameString = ConvertDevicePathToText (LoadedImageDevicePath, TRUE, FALSE);\r
      if (NameString != NULL) {\r
        StrnCpy (mGaugeString, NameString, DP_GAUGE_STRING_LENGTH);\r
        mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;\r
        FreePool (NameString);\r
        return;\r
      }\r
    }\r
  }\r
\r
  //\r
  // Method 6: Unknown Driver Name\r
  //\r
  StringPtr = HiiGetString (gDpHiiHandle, STRING_TOKEN (STR_DP_ERROR_NAME), NULL);\r
  ASSERT (StringPtr != NULL);\r
  StrCpy (mGaugeString, StringPtr);\r
  FreePool (StringPtr);\r
}\r
\r
/** \r
  Calculate the Duration in microseconds.\r
  \r
  Duration is multiplied by 1000, instead of Frequency being divided by 1000 or\r
  multiplying the result by 1000, in order to maintain precision.  Since Duration is\r
  a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.\r
  \r
  The time is calculated as (Duration * 1000) / Timer_Frequency.\r
  \r
  @param[in]  Duration   The event duration in timer ticks.\r
  \r
  @return     A 64-bit value which is the Elapsed time in microseconds.\r
**/\r
UINT64\r
DurationInMicroSeconds (\r
  IN UINT64 Duration\r
  )\r
{\r
  UINT64 Temp;\r
\r
  Temp = MultU64x32 (Duration, 1000);\r
  return DivU64x32 (Temp, TimerInfo.Frequency);\r
}\r
\r
/** \r
  Get index of Measurement Record's match in the CumData array.\r
  \r
  If the Measurement's Token value matches a Token in one of the CumData\r
  records, the index of the matching record is returned.  The returned\r
  index is a signed value so that negative values can indicate that\r
  the Measurement didn't match any entry in the CumData array.\r
  \r
  @param[in]  Measurement A pointer to a Measurement Record to match against the CumData array.\r
  \r
  @retval     <0    Token is not in the CumData array.\r
  @retval     >=0   Return value is the index into CumData where Token is found.\r
**/\r
INTN\r
GetCumulativeItem(\r
  IN MEASUREMENT_RECORD   *Measurement\r
  )\r
{\r
  INTN    Index;\r
\r
  for( Index = 0; Index < (INTN)NumCum; ++Index) {\r
    if (AsciiStrnCmp (Measurement->Token, CumData[Index].Name, PERF_TOKEN_LENGTH) == 0) {\r
      return Index;  // Exit, we found a match\r
    }\r
  }\r
  // If the for loop exits, Token was not found.\r
  return -1;   // Indicate failure\r
}\r
Commit	Line	Data
d41bc92c	1	/** @file\r
	2	Utility functions used by the Dp application.\r
	3	\r
	4	Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.\r
	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	**/\r
	13	\r
	14	#include <Library/BaseLib.h>\r
	15	#include <Library/BaseMemoryLib.h>\r
	16	#include <Library/MemoryAllocationLib.h>\r
	17	#include <Library/DebugLib.h>\r
	18	#include <Library/UefiBootServicesTableLib.h>\r
	19	#include <Library/TimerLib.h>\r
	20	#include <Library/PeCoffGetEntryPointLib.h>\r
	21	#include <Library/PrintLib.h>\r
	22	#include <Library/HiiLib.h>\r
	23	#include <Library/PcdLib.h>\r
	24	#include <Library/UefiLib.h>\r
	25	#include <Library/DevicePathLib.h>\r
a71003f2	26	#include <Library/HandleParsingLib.h>\r
d41bc92c	27	\r
	28	#include <Pi/PiFirmwareFile.h>\r
	29	#include <Library/DxeServicesLib.h>\r
	30	\r
	31	#include <Protocol/LoadedImage.h>\r
	32	#include <Protocol/DriverBinding.h>\r
	33	#include <Protocol/ComponentName2.h>\r
	34	#include <Protocol/DevicePath.h>\r
d41bc92c	35	\r
	36	#include <Guid/Performance.h>\r
	37	\r
	38	#include "Dp.h"\r
	39	#include "Literals.h"\r
	40	#include "DpInternal.h"\r
	41	\r
	42	/** \r
	43	Calculate an event's duration in timer ticks.\r
	44	\r
	45	Given the count direction and the event's start and end timer values,\r
	46	calculate the duration of the event in timer ticks. Information for\r
	47	the current measurement is pointed to by the parameter.\r
	48	\r
	49	If the measurement's start time is 1, it indicates that the developer\r
	50	is indicating that the measurement began at the release of reset.\r
	51	The start time is adjusted to the timer's starting count before performing\r
	52	the elapsed time calculation.\r
	53	\r
	54	The calculated duration, in ticks, is the absolute difference between\r
	55	the measurement's ending and starting counts.\r
	56	\r
	57	@param Measurement Pointer to a MEASUREMENT_RECORD structure containing\r
	58	data for the current measurement.\r
	59	\r
	60	@return The 64-bit duration of the event.\r
	61	**/\r
	62	UINT64\r
	63	GetDuration (\r
	64	IN OUT MEASUREMENT_RECORD *Measurement\r
	65	)\r
	66	{\r
	67	UINT64 Duration;\r
	68	BOOLEAN Error;\r
	69	\r
	70	// PERF_START macros are called with a value of 1 to indicate\r
	71	// the beginning of time. So, adjust the start ticker value\r
	72	// to the real beginning of time.\r
	73	// Assumes no wraparound. Even then, there is a very low probability\r
	74	// of having a valid StartTicker value of 1.\r
	75	if (Measurement->StartTimeStamp == 1) {\r
	76	Measurement->StartTimeStamp = TimerInfo.StartCount;\r
	77	}\r
	78	if (TimerInfo.CountUp) {\r
	79	Duration = Measurement->EndTimeStamp - Measurement->StartTimeStamp;\r
	80	Error = (BOOLEAN)(Duration > Measurement->EndTimeStamp);\r
	81	}\r
	82	else {\r
	83	Duration = Measurement->StartTimeStamp - Measurement->EndTimeStamp;\r
	84	Error = (BOOLEAN)(Duration > Measurement->StartTimeStamp);\r
	85	}\r
	86	\r
	87	if (Error) {\r
	88	DEBUG ((EFI_D_ERROR, ALit_TimerLibError));\r
	89	Duration = 0;\r
	90	}\r
	91	return Duration;\r
	92	}\r
	93	\r
	94	/** \r
	95	Determine whether the Measurement record is for an EFI Phase.\r
	96	\r
	97	The Token and Module members of the measurement record are checked.\r
	98	Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.\r
99	\r
100	@param[in] Measurement A pointer to the Measurement record to test.\r
101	\r
102	@retval TRUE The measurement record is for an EFI Phase.\r
103	@retval FALSE The measurement record is NOT for an EFI Phase.\r
104	**/\r
105	BOOLEAN\r
106	IsPhase(\r
107	IN MEASUREMENT_RECORD *Measurement\r
108	)\r
109	{\r
110	BOOLEAN RetVal;\r
111	\r
112	RetVal = (BOOLEAN)( ( *Measurement->Module == '\0') &&\r
113	((AsciiStrnCmp (Measurement->Token, ALit_SEC, PERF_TOKEN_LENGTH) == 0) \|\|\r
114	(AsciiStrnCmp (Measurement->Token, ALit_PEI, PERF_TOKEN_LENGTH) == 0) \|\|\r
115	(AsciiStrnCmp (Measurement->Token, ALit_DXE, PERF_TOKEN_LENGTH) == 0) \|\|\r
116	(AsciiStrnCmp (Measurement->Token, ALit_BDS, PERF_TOKEN_LENGTH) == 0))\r
117	);\r
118	return RetVal;\r
119	}\r
120	\r
121	/** \r
122	Get the file name portion of the Pdb File Name.\r
123	\r
124	The portion of the Pdb File Name between the last backslash and\r
125	either a following period or the end of the string is converted\r
126	to Unicode and copied into UnicodeBuffer. The name is truncated,\r
127	if necessary, to ensure that UnicodeBuffer is not overrun.\r
128	\r
129	@param[in] PdbFileName Pdb file name.\r
130	@param[out] UnicodeBuffer The resultant Unicode File Name.\r
131	\r
132	**/\r
133	VOID\r
134	GetShortPdbFileName (\r
135	IN CHAR8 *PdbFileName,\r
136	OUT CHAR16 *UnicodeBuffer\r
137	)\r
138	{\r
139	UINTN IndexA; // Current work location within an ASCII string.\r
140	UINTN IndexU; // Current work location within a Unicode string.\r
141	UINTN StartIndex;\r
142	UINTN EndIndex;\r
143	\r
144	ZeroMem (UnicodeBuffer, DXE_PERFORMANCE_STRING_LENGTH * sizeof (CHAR16));\r
145	\r
146	if (PdbFileName == NULL) {\r
147	StrCpy (UnicodeBuffer, L" ");\r
148	} else {\r
149	StartIndex = 0;\r
150	for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++)\r
151	;\r
152	for (IndexA = 0; PdbFileName[IndexA] != 0; IndexA++) {\r
153	if (PdbFileName[IndexA] == '\\') {\r
154	StartIndex = IndexA + 1;\r
155	}\r
156	\r
157	if (PdbFileName[IndexA] == '.') {\r
158	EndIndex = IndexA;\r
159	}\r
160	}\r
161	\r
162	IndexU = 0;\r
163	for (IndexA = StartIndex; IndexA < EndIndex; IndexA++) {\r
164	UnicodeBuffer[IndexU] = (CHAR16) PdbFileName[IndexA];\r
165	IndexU++;\r
166	if (IndexU >= DXE_PERFORMANCE_STRING_LENGTH) {\r
167	UnicodeBuffer[DXE_PERFORMANCE_STRING_LENGTH] = 0;\r
168	break;\r
169	}\r
170	}\r
171	}\r
172	}\r
173	\r
174	/** \r
175	Get a human readable name for an image handle.\r
176	The following methods will be tried orderly:\r
177	1. Image PDB\r
178	2. ComponentName2 protocol\r
179	3. FFS UI section\r
180	4. Image GUID\r
181	5. Image DevicePath\r
182	6. Unknown Driver Name\r
183	\r
184	@param[in] Handle\r
185	\r
186	@post The resulting Unicode name string is stored in the\r
187	mGaugeString global array.\r
188	\r
189	**/\r
190	VOID\r
191	GetNameFromHandle (\r
192	IN EFI_HANDLE Handle\r
193	)\r
194	{\r
195	EFI_STATUS Status;\r
196	EFI_LOADED_IMAGE_PROTOCOL *Image;\r
197	CHAR8 *PdbFileName;\r
198	EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;\r
199	EFI_STRING StringPtr;\r
200	EFI_DEVICE_PATH_PROTOCOL *LoadedImageDevicePath;\r
201	EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r
202	EFI_GUID *NameGuid;\r
203	CHAR16 *NameString;\r
204	UINTN StringSize;\r
205	CHAR8 *PlatformLanguage;\r
206	EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;\r
d41bc92c	207	\r
	208	//\r
	209	// Method 1: Get the name string from image PDB\r
	210	//\r
	211	Status = gBS->HandleProtocol (\r
	212	Handle,\r
	213	&gEfiLoadedImageProtocolGuid,\r
	214	(VOID **) &Image\r
	215	);\r
	216	\r
	217	if (EFI_ERROR (Status)) {\r
	218	Status = gBS->OpenProtocol (\r
	219	Handle,\r
	220	&gEfiDriverBindingProtocolGuid,\r
	221	(VOID **) &DriverBinding,\r
	222	NULL,\r
	223	NULL,\r
	224	EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
	225	);\r
	226	if (!EFI_ERROR (Status)) {\r
	227	Status = gBS->HandleProtocol (\r
	228	DriverBinding->ImageHandle,\r
	229	&gEfiLoadedImageProtocolGuid,\r
	230	(VOID **) &Image\r
	231	);\r
	232	}\r
	233	}\r
	234	\r
	235	if (!EFI_ERROR (Status)) {\r
	236	PdbFileName = PeCoffLoaderGetPdbPointer (Image->ImageBase);\r
	237	\r
	238	if (PdbFileName != NULL) {\r
	239	GetShortPdbFileName (PdbFileName, mGaugeString);\r
	240	return;\r
	241	}\r
	242	}\r
	243	\r
	244	//\r
	245	// Method 2: Get the name string from ComponentName2 protocol\r
	246	//\r
	247	Status = gBS->HandleProtocol (\r
	248	Handle,\r
	249	&gEfiComponentName2ProtocolGuid,\r
	250	(VOID **) &ComponentName2\r
	251	);\r
	252	if (!EFI_ERROR (Status)) {\r
	253	//\r
	254	// Get the current platform language setting\r
	255	//\r
a71003f2	256	PlatformLanguage = GetBestLanguageForDriver(ComponentName2->SupportedLanguages, NULL, FALSE);\r
d41bc92c	257	Status = ComponentName2->GetDriverName (\r
	258	ComponentName2,\r
	259	PlatformLanguage != NULL ? PlatformLanguage : "en-US",\r
	260	&StringPtr\r
	261	);\r
	262	if (!EFI_ERROR (Status)) {\r
	263	SHELL_FREE_NON_NULL (PlatformLanguage);\r
	264	StrnCpy (mGaugeString, StringPtr, DP_GAUGE_STRING_LENGTH);\r
	265	mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;\r
	266	return;\r
	267	}\r
	268	}\r
	269	\r
	270	Status = gBS->HandleProtocol (\r
	271	Handle,\r
	272	&gEfiLoadedImageDevicePathProtocolGuid,\r
	273	(VOID **) &LoadedImageDevicePath\r
	274	);\r
	275	if (!EFI_ERROR (Status) && (LoadedImageDevicePath != NULL)) {\r
	276	DevicePath = LoadedImageDevicePath;\r
	277	\r
	278	//\r
	279	// Try to get image GUID from LoadedImageDevicePath protocol\r
	280	//\r
	281	NameGuid = NULL;\r
	282	while (!IsDevicePathEndType (DevicePath)) {\r
	283	NameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) DevicePath);\r
	284	if (NameGuid != NULL) {\r
	285	break;\r
	286	}\r
	287	DevicePath = NextDevicePathNode (DevicePath);\r
	288	}\r
	289	\r
	290	if (NameGuid != NULL) {\r
	291	//\r
	292	// Try to get the image's FFS UI section by image GUID\r
	293	//\r
	294	NameString = NULL;\r
	295	StringSize = 0;\r
	296	Status = GetSectionFromAnyFv (\r
	297	NameGuid,\r
	298	EFI_SECTION_USER_INTERFACE,\r
	299	0,\r
	300	(VOID **) &NameString,\r
	301	&StringSize\r
	302	);\r
	303	\r
	304	if (!EFI_ERROR (Status)) {\r
	305	//\r
	306	// Method 3. Get the name string from FFS UI section\r
	307	//\r
	308	StrnCpy (mGaugeString, NameString, DP_GAUGE_STRING_LENGTH);\r
	309	mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;\r
	310	FreePool (NameString);\r
	311	} else {\r
	312	//\r
	313	// Method 4: Get the name string from image GUID\r
	314	//\r
	315	UnicodeSPrint (mGaugeString, sizeof (mGaugeString), L"%g", NameGuid);\r
	316	}\r
	317	return;\r
	318	} else {\r
	319	//\r
	320	// Method 5: Get the name string from image DevicePath\r
321	//\r
863986b3 RN	322	NameString = ConvertDevicePathToText (LoadedImageDevicePath, TRUE, FALSE);\r
	323	if (NameString != NULL) {\r
	324	StrnCpy (mGaugeString, NameString, DP_GAUGE_STRING_LENGTH);\r
	325	mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;\r
	326	FreePool (NameString);\r
	327	return;\r
d41bc92c	328	}\r
	329	}\r
	330	}\r
	331	\r
	332	//\r
	333	// Method 6: Unknown Driver Name\r
	334	//\r
	335	StringPtr = HiiGetString (gDpHiiHandle, STRING_TOKEN (STR_DP_ERROR_NAME), NULL);\r
	336	ASSERT (StringPtr != NULL);\r
	337	StrCpy (mGaugeString, StringPtr);\r
	338	FreePool (StringPtr);\r
	339	}\r
	340	\r
	341	/** \r
	342	Calculate the Duration in microseconds.\r
	343	\r
	344	Duration is multiplied by 1000, instead of Frequency being divided by 1000 or\r
	345	multiplying the result by 1000, in order to maintain precision. Since Duration is\r
	346	a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.\r
	347	\r
	348	The time is calculated as (Duration * 1000) / Timer_Frequency.\r
	349	\r
	350	@param[in] Duration The event duration in timer ticks.\r
	351	\r
	352	@return A 64-bit value which is the Elapsed time in microseconds.\r
	353	**/\r
	354	UINT64\r
	355	DurationInMicroSeconds (\r
	356	IN UINT64 Duration\r
	357	)\r
	358	{\r
	359	UINT64 Temp;\r
	360	\r
	361	Temp = MultU64x32 (Duration, 1000);\r
	362	return DivU64x32 (Temp, TimerInfo.Frequency);\r
	363	}\r
	364	\r
	365	/** \r
	366	Get index of Measurement Record's match in the CumData array.\r
	367	\r
	368	If the Measurement's Token value matches a Token in one of the CumData\r
	369	records, the index of the matching record is returned. The returned\r
	370	index is a signed value so that negative values can indicate that\r
	371	the Measurement didn't match any entry in the CumData array.\r
	372	\r
	373	@param[in] Measurement A pointer to a Measurement Record to match against the CumData array.\r
	374	\r
	375	@retval <0 Token is not in the CumData array.\r
	376	@retval >=0 Return value is the index into CumData where Token is found.\r
	377	**/\r
	378	INTN\r
	379	GetCumulativeItem(\r
	380	IN MEASUREMENT_RECORD *Measurement\r
	381	)\r
	382	{\r
	383	INTN Index;\r
	384	\r
	385	for( Index = 0; Index < (INTN)NumCum; ++Index) {\r
	386	if (AsciiStrnCmp (Measurement->Token, CumData[Index].Name, PERF_TOKEN_LENGTH) == 0) {\r
	387	return Index; // Exit, we found a match\r
	388	}\r
	389	}\r
	390	// If the for loop exits, Token was not found.\r
	391	return -1; // Indicate failure\r
392	}\r