diff options
Diffstat (limited to 'ShellPkg/DynamicCommand/DpDynamicCommand/DpUtilities.c')
| -rw-r--r-- | ShellPkg/DynamicCommand/DpDynamicCommand/DpUtilities.c | 854 |
1 files changed, 427 insertions, 427 deletions
diff --git a/ShellPkg/DynamicCommand/DpDynamicCommand/DpUtilities.c b/ShellPkg/DynamicCommand/DpDynamicCommand/DpUtilities.c index 60c886c11d..725e628a2c 100644 --- a/ShellPkg/DynamicCommand/DpDynamicCommand/DpUtilities.c +++ b/ShellPkg/DynamicCommand/DpDynamicCommand/DpUtilities.c @@ -1,427 +1,427 @@ -/** @file
- Utility functions used by the Dp application.
-
- Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.
- (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-**/
-
-#include <Library/BaseLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/DebugLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/PeCoffGetEntryPointLib.h>
-#include <Library/PrintLib.h>
-#include <Library/HiiLib.h>
-#include <Library/PcdLib.h>
-#include <Library/UefiLib.h>
-#include <Library/DevicePathLib.h>
-#include <Library/HandleParsingLib.h>
-
-#include <Pi/PiFirmwareFile.h>
-#include <Library/DxeServicesLib.h>
-
-#include <Protocol/LoadedImage.h>
-#include <Protocol/DriverBinding.h>
-#include <Protocol/ComponentName2.h>
-#include <Protocol/DevicePath.h>
-
-#include <Guid/Performance.h>
-
-#include "Dp.h"
-#include "Literals.h"
-#include "DpInternal.h"
-
-/**
- Calculate an event's duration in timer ticks.
-
- Given the count direction and the event's start and end timer values,
- calculate the duration of the event in timer ticks. Information for
- the current measurement is pointed to by the parameter.
-
- If the measurement's start time is 1, it indicates that the developer
- is indicating that the measurement began at the release of reset.
- The start time is adjusted to the timer's starting count before performing
- the elapsed time calculation.
-
- The calculated duration, in ticks, is the absolute difference between
- the measurement's ending and starting counts.
-
- @param Measurement Pointer to a MEASUREMENT_RECORD structure containing
- data for the current measurement.
-
- @return The 64-bit duration of the event.
-**/
-UINT64
-GetDuration (
- IN OUT MEASUREMENT_RECORD *Measurement
- )
-{
- UINT64 Duration;
- BOOLEAN Error;
-
- if (Measurement->EndTimeStamp == 0) {
- return 0;
- }
-
- Duration = Measurement->EndTimeStamp - Measurement->StartTimeStamp;
- Error = (BOOLEAN)(Duration > Measurement->EndTimeStamp);
-
- if (Error) {
- DEBUG ((DEBUG_ERROR, ALit_TimerLibError));
- Duration = 0;
- }
-
- return Duration;
-}
-
-/**
- Determine whether the Measurement record is for an EFI Phase.
-
- The Token and Module members of the measurement record are checked.
- Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL.
-
- @param[in] Measurement A pointer to the Measurement record to test.
-
- @retval TRUE The measurement record is for an EFI Phase.
- @retval FALSE The measurement record is NOT for an EFI Phase.
-**/
-BOOLEAN
-IsPhase (
- IN MEASUREMENT_RECORD *Measurement
- )
-{
- BOOLEAN RetVal;
-
- RetVal = (BOOLEAN)(
- ((AsciiStrCmp (Measurement->Token, ALit_SEC) == 0) ||
- (AsciiStrCmp (Measurement->Token, ALit_PEI) == 0) ||
- (AsciiStrCmp (Measurement->Token, ALit_DXE) == 0) ||
- (AsciiStrCmp (Measurement->Token, ALit_BDS) == 0))
- );
- return RetVal;
-}
-
-/**
- Determine whether the Measurement record is for core code.
-
- @param[in] Measurement A pointer to the Measurement record to test.
-
- @retval TRUE The measurement record is used for core.
- @retval FALSE The measurement record is NOT used for core.
-
-**/
-BOOLEAN
-IsCorePerf (
- IN MEASUREMENT_RECORD *Measurement
- )
-{
- BOOLEAN RetVal;
-
- RetVal = (BOOLEAN)(
- ((Measurement->Identifier == MODULE_START_ID) ||
- (Measurement->Identifier == MODULE_END_ID) ||
- (Measurement->Identifier == MODULE_LOADIMAGE_START_ID) ||
- (Measurement->Identifier == MODULE_LOADIMAGE_END_ID) ||
- (Measurement->Identifier == MODULE_DB_START_ID) ||
- (Measurement->Identifier == MODULE_DB_END_ID) ||
- (Measurement->Identifier == MODULE_DB_SUPPORT_START_ID) ||
- (Measurement->Identifier == MODULE_DB_SUPPORT_END_ID) ||
- (Measurement->Identifier == MODULE_DB_STOP_START_ID) ||
- (Measurement->Identifier == MODULE_DB_STOP_START_ID))
- );
- return RetVal;
-}
-
-/**
- Get the file name portion of the Pdb File Name.
-
- The portion of the Pdb File Name between the last backslash and
- either a following period or the end of the string is converted
- to Unicode and copied into UnicodeBuffer. The name is truncated,
- if necessary, to ensure that UnicodeBuffer is not overrun.
-
- @param[in] PdbFileName Pdb file name.
- @param[out] UnicodeBuffer The resultant Unicode File Name.
-
-**/
-VOID
-DpGetShortPdbFileName (
- IN CHAR8 *PdbFileName,
- OUT CHAR16 *UnicodeBuffer
- )
-{
- UINTN IndexA; // Current work location within an ASCII string.
- UINTN IndexU; // Current work location within a Unicode string.
- UINTN StartIndex;
- UINTN EndIndex;
-
- ZeroMem (UnicodeBuffer, (DP_GAUGE_STRING_LENGTH + 1) * sizeof (CHAR16));
-
- if (PdbFileName == NULL) {
- StrnCpyS (UnicodeBuffer, DP_GAUGE_STRING_LENGTH + 1, L" ", 1);
- } else {
- StartIndex = 0;
- for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++) {
- }
-
- for (IndexA = 0; PdbFileName[IndexA] != 0; IndexA++) {
- if ((PdbFileName[IndexA] == '\\') || (PdbFileName[IndexA] == '/')) {
- StartIndex = IndexA + 1;
- }
-
- if (PdbFileName[IndexA] == '.') {
- EndIndex = IndexA;
- }
- }
-
- IndexU = 0;
- for (IndexA = StartIndex; IndexA < EndIndex; IndexA++) {
- UnicodeBuffer[IndexU] = (CHAR16)PdbFileName[IndexA];
- IndexU++;
- if (IndexU >= DP_GAUGE_STRING_LENGTH) {
- UnicodeBuffer[DP_GAUGE_STRING_LENGTH] = 0;
- break;
- }
- }
- }
-}
-
-/**
- Get a human readable name for an image handle.
- The following methods will be tried orderly:
- 1. Image PDB
- 2. ComponentName2 protocol
- 3. FFS UI section
- 4. Image GUID
- 5. Image DevicePath
- 6. Unknown Driver Name
-
- @param[in] Handle
-
- @post The resulting Unicode name string is stored in the
- mGaugeString global array.
-
-**/
-VOID
-DpGetNameFromHandle (
- IN EFI_HANDLE Handle
- )
-{
- EFI_STATUS Status;
- EFI_LOADED_IMAGE_PROTOCOL *Image;
- CHAR8 *PdbFileName;
- EFI_DRIVER_BINDING_PROTOCOL *DriverBinding;
- EFI_STRING StringPtr;
- EFI_DEVICE_PATH_PROTOCOL *LoadedImageDevicePath;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
- EFI_GUID *NameGuid;
- CHAR16 *NameString;
- UINTN StringSize;
- CHAR8 *PlatformLanguage;
- CHAR8 *BestLanguage;
- EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2;
-
- Image = NULL;
- LoadedImageDevicePath = NULL;
- DevicePath = NULL;
-
- //
- // Method 1: Get the name string from image PDB
- //
- Status = gBS->HandleProtocol (
- Handle,
- &gEfiLoadedImageProtocolGuid,
- (VOID **)&Image
- );
-
- if (EFI_ERROR (Status)) {
- Status = gBS->OpenProtocol (
- Handle,
- &gEfiDriverBindingProtocolGuid,
- (VOID **)&DriverBinding,
- NULL,
- NULL,
- EFI_OPEN_PROTOCOL_GET_PROTOCOL
- );
- if (!EFI_ERROR (Status)) {
- Status = gBS->HandleProtocol (
- DriverBinding->ImageHandle,
- &gEfiLoadedImageProtocolGuid,
- (VOID **)&Image
- );
- }
- }
-
- if (!EFI_ERROR (Status)) {
- PdbFileName = PeCoffLoaderGetPdbPointer (Image->ImageBase);
-
- if (PdbFileName != NULL) {
- DpGetShortPdbFileName (PdbFileName, mGaugeString);
- return;
- }
- }
-
- //
- // Method 2: Get the name string from ComponentName2 protocol
- //
- Status = gBS->HandleProtocol (
- Handle,
- &gEfiComponentName2ProtocolGuid,
- (VOID **)&ComponentName2
- );
- if (!EFI_ERROR (Status)) {
- //
- // Firstly use platform language setting, secondly use driver's first supported language.
- //
- GetVariable2 (L"PlatformLang", &gEfiGlobalVariableGuid, (VOID **)&PlatformLanguage, NULL);
- BestLanguage = GetBestLanguage (
- ComponentName2->SupportedLanguages,
- FALSE,
- (PlatformLanguage != NULL) ? PlatformLanguage : "",
- ComponentName2->SupportedLanguages,
- NULL
- );
- SHELL_FREE_NON_NULL (PlatformLanguage);
-
- Status = ComponentName2->GetDriverName (
- ComponentName2,
- BestLanguage != NULL ? BestLanguage : "en-US",
- &StringPtr
- );
- if (!EFI_ERROR (Status)) {
- SHELL_FREE_NON_NULL (BestLanguage);
- StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, StringPtr, DP_GAUGE_STRING_LENGTH);
- mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;
- return;
- }
- }
-
- Status = gBS->HandleProtocol (
- Handle,
- &gEfiLoadedImageDevicePathProtocolGuid,
- (VOID **)&LoadedImageDevicePath
- );
- if (!EFI_ERROR (Status) && (LoadedImageDevicePath != NULL)) {
- DevicePath = LoadedImageDevicePath;
- } else if (Image != NULL) {
- DevicePath = Image->FilePath;
- }
-
- if (DevicePath != NULL) {
- //
- // Try to get image GUID from image DevicePath
- //
- NameGuid = NULL;
- while (!IsDevicePathEndType (DevicePath)) {
- NameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)DevicePath);
- if (NameGuid != NULL) {
- break;
- }
-
- DevicePath = NextDevicePathNode (DevicePath);
- }
-
- if (NameGuid != NULL) {
- //
- // Try to get the image's FFS UI section by image GUID
- //
- NameString = NULL;
- StringSize = 0;
- Status = GetSectionFromAnyFv (
- NameGuid,
- EFI_SECTION_USER_INTERFACE,
- 0,
- (VOID **)&NameString,
- &StringSize
- );
-
- if (!EFI_ERROR (Status)) {
- //
- // Method 3. Get the name string from FFS UI section
- //
- StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, NameString, DP_GAUGE_STRING_LENGTH);
- mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;
- FreePool (NameString);
- } else {
- //
- // Method 4: Get the name string from image GUID
- //
- UnicodeSPrint (mGaugeString, sizeof (mGaugeString), L"%g", NameGuid);
- }
-
- return;
- } else {
- //
- // Method 5: Get the name string from image DevicePath
- //
- NameString = ConvertDevicePathToText (DevicePath, TRUE, FALSE);
- if (NameString != NULL) {
- StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, NameString, DP_GAUGE_STRING_LENGTH);
- mGaugeString[DP_GAUGE_STRING_LENGTH] = 0;
- FreePool (NameString);
- return;
- }
- }
- }
-
- //
- // Method 6: Unknown Driver Name
- //
- StringPtr = HiiGetString (mDpHiiHandle, STRING_TOKEN (STR_DP_ERROR_NAME), NULL);
- ASSERT (StringPtr != NULL);
- StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, StringPtr, DP_GAUGE_STRING_LENGTH);
- FreePool (StringPtr);
-}
-
-/**
- Calculate the Duration in microseconds.
-
- Duration is multiplied by 1000, instead of Frequency being divided by 1000 or
- multiplying the result by 1000, in order to maintain precision. Since Duration is
- a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow.
-
- The time is calculated as (Duration * 1000) / Timer_Frequency.
-
- @param[in] Duration The event duration in timer ticks.
-
- @return A 64-bit value which is the Elapsed time in microseconds.
-**/
-UINT64
-DurationInMicroSeconds (
- IN UINT64 Duration
- )
-{
- return DivU64x32 (Duration, 1000);
-}
-
-/**
- Get index of Measurement Record's match in the CumData array.
-
- If the Measurement's Token value matches a Token in one of the CumData
- records, the index of the matching record is returned. The returned
- index is a signed value so that negative values can indicate that
- the Measurement didn't match any entry in the CumData array.
-
- @param[in] Measurement A pointer to a Measurement Record to match against the CumData array.
-
- @retval <0 Token is not in the CumData array.
- @retval >=0 Return value is the index into CumData where Token is found.
-**/
-INTN
-GetCumulativeItem (
- IN MEASUREMENT_RECORD *Measurement
- )
-{
- INTN Index;
-
- for ( Index = 0; Index < (INTN)NumCum; ++Index) {
- if (AsciiStrCmp (Measurement->Token, CumData[Index].Name) == 0) {
- return Index; // Exit, we found a match
- }
- }
-
- // If the for loop exits, Token was not found.
- return -1; // Indicate failure
-}
+/** @file + Utility functions used by the Dp application. + + Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved. + (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#include <Library/BaseLib.h> +#include <Library/BaseMemoryLib.h> +#include <Library/MemoryAllocationLib.h> +#include <Library/DebugLib.h> +#include <Library/UefiBootServicesTableLib.h> +#include <Library/PeCoffGetEntryPointLib.h> +#include <Library/PrintLib.h> +#include <Library/HiiLib.h> +#include <Library/PcdLib.h> +#include <Library/UefiLib.h> +#include <Library/DevicePathLib.h> +#include <Library/HandleParsingLib.h> + +#include <Pi/PiFirmwareFile.h> +#include <Library/DxeServicesLib.h> + +#include <Protocol/LoadedImage.h> +#include <Protocol/DriverBinding.h> +#include <Protocol/ComponentName2.h> +#include <Protocol/DevicePath.h> + +#include <Guid/Performance.h> + +#include "Dp.h" +#include "Literals.h" +#include "DpInternal.h" + +/** + Calculate an event's duration in timer ticks. + + Given the count direction and the event's start and end timer values, + calculate the duration of the event in timer ticks. Information for + the current measurement is pointed to by the parameter. + + If the measurement's start time is 1, it indicates that the developer + is indicating that the measurement began at the release of reset. + The start time is adjusted to the timer's starting count before performing + the elapsed time calculation. + + The calculated duration, in ticks, is the absolute difference between + the measurement's ending and starting counts. + + @param Measurement Pointer to a MEASUREMENT_RECORD structure containing + data for the current measurement. + + @return The 64-bit duration of the event. +**/ +UINT64 +GetDuration ( + IN OUT MEASUREMENT_RECORD *Measurement + ) +{ + UINT64 Duration; + BOOLEAN Error; + + if (Measurement->EndTimeStamp == 0) { + return 0; + } + + Duration = Measurement->EndTimeStamp - Measurement->StartTimeStamp; + Error = (BOOLEAN)(Duration > Measurement->EndTimeStamp); + + if (Error) { + DEBUG ((DEBUG_ERROR, ALit_TimerLibError)); + Duration = 0; + } + + return Duration; +} + +/** + Determine whether the Measurement record is for an EFI Phase. + + The Token and Module members of the measurement record are checked. + Module must be empty and Token must be one of SEC, PEI, DXE, BDS, or SHELL. + + @param[in] Measurement A pointer to the Measurement record to test. + + @retval TRUE The measurement record is for an EFI Phase. + @retval FALSE The measurement record is NOT for an EFI Phase. +**/ +BOOLEAN +IsPhase ( + IN MEASUREMENT_RECORD *Measurement + ) +{ + BOOLEAN RetVal; + + RetVal = (BOOLEAN)( + ((AsciiStrCmp (Measurement->Token, ALit_SEC) == 0) || + (AsciiStrCmp (Measurement->Token, ALit_PEI) == 0) || + (AsciiStrCmp (Measurement->Token, ALit_DXE) == 0) || + (AsciiStrCmp (Measurement->Token, ALit_BDS) == 0)) + ); + return RetVal; +} + +/** + Determine whether the Measurement record is for core code. + + @param[in] Measurement A pointer to the Measurement record to test. + + @retval TRUE The measurement record is used for core. + @retval FALSE The measurement record is NOT used for core. + +**/ +BOOLEAN +IsCorePerf ( + IN MEASUREMENT_RECORD *Measurement + ) +{ + BOOLEAN RetVal; + + RetVal = (BOOLEAN)( + ((Measurement->Identifier == MODULE_START_ID) || + (Measurement->Identifier == MODULE_END_ID) || + (Measurement->Identifier == MODULE_LOADIMAGE_START_ID) || + (Measurement->Identifier == MODULE_LOADIMAGE_END_ID) || + (Measurement->Identifier == MODULE_DB_START_ID) || + (Measurement->Identifier == MODULE_DB_END_ID) || + (Measurement->Identifier == MODULE_DB_SUPPORT_START_ID) || + (Measurement->Identifier == MODULE_DB_SUPPORT_END_ID) || + (Measurement->Identifier == MODULE_DB_STOP_START_ID) || + (Measurement->Identifier == MODULE_DB_STOP_START_ID)) + ); + return RetVal; +} + +/** + Get the file name portion of the Pdb File Name. + + The portion of the Pdb File Name between the last backslash and + either a following period or the end of the string is converted + to Unicode and copied into UnicodeBuffer. The name is truncated, + if necessary, to ensure that UnicodeBuffer is not overrun. + + @param[in] PdbFileName Pdb file name. + @param[out] UnicodeBuffer The resultant Unicode File Name. + +**/ +VOID +DpGetShortPdbFileName ( + IN CHAR8 *PdbFileName, + OUT CHAR16 *UnicodeBuffer + ) +{ + UINTN IndexA; // Current work location within an ASCII string. + UINTN IndexU; // Current work location within a Unicode string. + UINTN StartIndex; + UINTN EndIndex; + + ZeroMem (UnicodeBuffer, (DP_GAUGE_STRING_LENGTH + 1) * sizeof (CHAR16)); + + if (PdbFileName == NULL) { + StrnCpyS (UnicodeBuffer, DP_GAUGE_STRING_LENGTH + 1, L" ", 1); + } else { + StartIndex = 0; + for (EndIndex = 0; PdbFileName[EndIndex] != 0; EndIndex++) { + } + + for (IndexA = 0; PdbFileName[IndexA] != 0; IndexA++) { + if ((PdbFileName[IndexA] == '\\') || (PdbFileName[IndexA] == '/')) { + StartIndex = IndexA + 1; + } + + if (PdbFileName[IndexA] == '.') { + EndIndex = IndexA; + } + } + + IndexU = 0; + for (IndexA = StartIndex; IndexA < EndIndex; IndexA++) { + UnicodeBuffer[IndexU] = (CHAR16)PdbFileName[IndexA]; + IndexU++; + if (IndexU >= DP_GAUGE_STRING_LENGTH) { + UnicodeBuffer[DP_GAUGE_STRING_LENGTH] = 0; + break; + } + } + } +} + +/** + Get a human readable name for an image handle. + The following methods will be tried orderly: + 1. Image PDB + 2. ComponentName2 protocol + 3. FFS UI section + 4. Image GUID + 5. Image DevicePath + 6. Unknown Driver Name + + @param[in] Handle + + @post The resulting Unicode name string is stored in the + mGaugeString global array. + +**/ +VOID +DpGetNameFromHandle ( + IN EFI_HANDLE Handle + ) +{ + EFI_STATUS Status; + EFI_LOADED_IMAGE_PROTOCOL *Image; + CHAR8 *PdbFileName; + EFI_DRIVER_BINDING_PROTOCOL *DriverBinding; + EFI_STRING StringPtr; + EFI_DEVICE_PATH_PROTOCOL *LoadedImageDevicePath; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + EFI_GUID *NameGuid; + CHAR16 *NameString; + UINTN StringSize; + CHAR8 *PlatformLanguage; + CHAR8 *BestLanguage; + EFI_COMPONENT_NAME2_PROTOCOL *ComponentName2; + + Image = NULL; + LoadedImageDevicePath = NULL; + DevicePath = NULL; + + // + // Method 1: Get the name string from image PDB + // + Status = gBS->HandleProtocol ( + Handle, + &gEfiLoadedImageProtocolGuid, + (VOID **)&Image + ); + + if (EFI_ERROR (Status)) { + Status = gBS->OpenProtocol ( + Handle, + &gEfiDriverBindingProtocolGuid, + (VOID **)&DriverBinding, + NULL, + NULL, + EFI_OPEN_PROTOCOL_GET_PROTOCOL + ); + if (!EFI_ERROR (Status)) { + Status = gBS->HandleProtocol ( + DriverBinding->ImageHandle, + &gEfiLoadedImageProtocolGuid, + (VOID **)&Image + ); + } + } + + if (!EFI_ERROR (Status)) { + PdbFileName = PeCoffLoaderGetPdbPointer (Image->ImageBase); + + if (PdbFileName != NULL) { + DpGetShortPdbFileName (PdbFileName, mGaugeString); + return; + } + } + + // + // Method 2: Get the name string from ComponentName2 protocol + // + Status = gBS->HandleProtocol ( + Handle, + &gEfiComponentName2ProtocolGuid, + (VOID **)&ComponentName2 + ); + if (!EFI_ERROR (Status)) { + // + // Firstly use platform language setting, secondly use driver's first supported language. + // + GetVariable2 (L"PlatformLang", &gEfiGlobalVariableGuid, (VOID **)&PlatformLanguage, NULL); + BestLanguage = GetBestLanguage ( + ComponentName2->SupportedLanguages, + FALSE, + (PlatformLanguage != NULL) ? PlatformLanguage : "", + ComponentName2->SupportedLanguages, + NULL + ); + SHELL_FREE_NON_NULL (PlatformLanguage); + + Status = ComponentName2->GetDriverName ( + ComponentName2, + BestLanguage != NULL ? BestLanguage : "en-US", + &StringPtr + ); + if (!EFI_ERROR (Status)) { + SHELL_FREE_NON_NULL (BestLanguage); + StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, StringPtr, DP_GAUGE_STRING_LENGTH); + mGaugeString[DP_GAUGE_STRING_LENGTH] = 0; + return; + } + } + + Status = gBS->HandleProtocol ( + Handle, + &gEfiLoadedImageDevicePathProtocolGuid, + (VOID **)&LoadedImageDevicePath + ); + if (!EFI_ERROR (Status) && (LoadedImageDevicePath != NULL)) { + DevicePath = LoadedImageDevicePath; + } else if (Image != NULL) { + DevicePath = Image->FilePath; + } + + if (DevicePath != NULL) { + // + // Try to get image GUID from image DevicePath + // + NameGuid = NULL; + while (!IsDevicePathEndType (DevicePath)) { + NameGuid = EfiGetNameGuidFromFwVolDevicePathNode ((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)DevicePath); + if (NameGuid != NULL) { + break; + } + + DevicePath = NextDevicePathNode (DevicePath); + } + + if (NameGuid != NULL) { + // + // Try to get the image's FFS UI section by image GUID + // + NameString = NULL; + StringSize = 0; + Status = GetSectionFromAnyFv ( + NameGuid, + EFI_SECTION_USER_INTERFACE, + 0, + (VOID **)&NameString, + &StringSize + ); + + if (!EFI_ERROR (Status)) { + // + // Method 3. Get the name string from FFS UI section + // + StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, NameString, DP_GAUGE_STRING_LENGTH); + mGaugeString[DP_GAUGE_STRING_LENGTH] = 0; + FreePool (NameString); + } else { + // + // Method 4: Get the name string from image GUID + // + UnicodeSPrint (mGaugeString, sizeof (mGaugeString), L"%g", NameGuid); + } + + return; + } else { + // + // Method 5: Get the name string from image DevicePath + // + NameString = ConvertDevicePathToText (DevicePath, TRUE, FALSE); + if (NameString != NULL) { + StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, NameString, DP_GAUGE_STRING_LENGTH); + mGaugeString[DP_GAUGE_STRING_LENGTH] = 0; + FreePool (NameString); + return; + } + } + } + + // + // Method 6: Unknown Driver Name + // + StringPtr = HiiGetString (mDpHiiHandle, STRING_TOKEN (STR_DP_ERROR_NAME), NULL); + ASSERT (StringPtr != NULL); + StrnCpyS (mGaugeString, DP_GAUGE_STRING_LENGTH + 1, StringPtr, DP_GAUGE_STRING_LENGTH); + FreePool (StringPtr); +} + +/** + Calculate the Duration in microseconds. + + Duration is multiplied by 1000, instead of Frequency being divided by 1000 or + multiplying the result by 1000, in order to maintain precision. Since Duration is + a 64-bit value, multiplying it by 1000 is unlikely to produce an overflow. + + The time is calculated as (Duration * 1000) / Timer_Frequency. + + @param[in] Duration The event duration in timer ticks. + + @return A 64-bit value which is the Elapsed time in microseconds. +**/ +UINT64 +DurationInMicroSeconds ( + IN UINT64 Duration + ) +{ + return DivU64x32 (Duration, 1000); +} + +/** + Get index of Measurement Record's match in the CumData array. + + If the Measurement's Token value matches a Token in one of the CumData + records, the index of the matching record is returned. The returned + index is a signed value so that negative values can indicate that + the Measurement didn't match any entry in the CumData array. + + @param[in] Measurement A pointer to a Measurement Record to match against the CumData array. + + @retval <0 Token is not in the CumData array. + @retval >=0 Return value is the index into CumData where Token is found. +**/ +INTN +GetCumulativeItem ( + IN MEASUREMENT_RECORD *Measurement + ) +{ + INTN Index; + + for ( Index = 0; Index < (INTN)NumCum; ++Index) { + if (AsciiStrCmp (Measurement->Token, CumData[Index].Name) == 0) { + return Index; // Exit, we found a match + } + } + + // If the for loop exits, Token was not found. + return -1; // Indicate failure +} |