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- /** @file
- Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php.
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
- **/
- #include <Base.h>
- #include <Library/DebugLib.h>
- #include <Library/BaseLib.h>
- #include <Library/PrintLib.h>
- #include <Library/PcdLib.h>
- #include <Library/BaseMemoryLib.h>
- #include <Library/SerialPortLib.h>
- #include <Library/DebugDeviceLib.h>
- #include <Library/DebugPrintErrorLevelLib.h>
- //
- // Define the maximum debug and assert message length that this library supports
- //
- #define MAX_DEBUG_MESSAGE_LENGTH 0x100
- CONST CHAR8 *mHexTable = "0123456789ABCDEF";
- //
- // VA_LIST can not initialize to NULL for all compiler, so we use this to
- // indicate a null VA_LIST
- //
- VA_LIST mVaListNull;
- /**
- Get stack frame pointer of function call.
- @return StackFramePointer stack frame pointer of function call.
- **/
- UINT32 *
- EFIAPI
- GetStackFramePointer (
- VOID
- );
- /**
- Prints a debug message to the debug output device if the specified error level is enabled.
- If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function
- GetDebugPrintErrorLevel (), then print the message specified by Format and the
- associated variable argument list to the debug output device.
- If Format is NULL, then ASSERT().
- @param ErrorLevel The error level of the debug message.
- @param Format Format string for the debug message to print.
- @param ... Variable argument list whose contents are accessed
- based on the format string specified by Format.
- **/
- VOID
- EFIAPI
- DebugPrint (
- IN UINTN ErrorLevel,
- IN CONST CHAR8 *Format,
- ...
- )
- {
- VA_LIST Marker;
- VA_START (Marker, Format);
- DebugVPrint (ErrorLevel, Format, Marker);
- VA_END (Marker);
- }
- /**
- Prints a debug message to the debug output device if the specified
- error level is enabled base on Null-terminated format string and a
- VA_LIST argument list or a BASE_LIST argument list.
- If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function
- GetDebugPrintErrorLevel (), then print the message specified by Format and
- the associated variable argument list to the debug output device.
- If Format is NULL, then ASSERT().
- @param ErrorLevel The error level of the debug message.
- @param Format Format string for the debug message to print.
- @param VaListMarker VA_LIST marker for the variable argument list.
- @param BaseListMarker BASE_LIST marker for the variable argument list.
- **/
- VOID
- DebugPrintMarker (
- IN UINTN ErrorLevel,
- IN CONST CHAR8 *Format,
- IN VA_LIST VaListMarker,
- IN BASE_LIST BaseListMarker
- )
- {
- CHAR8 Buffer[MAX_DEBUG_MESSAGE_LENGTH];
- //
- // If Format is NULL, then ASSERT().
- //
- if (!GetDebugPrintDeviceEnable ()) {
- return;
- }
- //
- // Check driver debug mask value and global mask
- //
- if ((ErrorLevel & GetDebugPrintErrorLevel ()) == 0) {
- return;
- }
- //
- // If Format is NULL, then ASSERT().
- //
- ASSERT (Format != NULL);
- //
- // Convert the DEBUG() message to an ASCII String
- //
- if (BaseListMarker == NULL) {
- AsciiVSPrint (Buffer, sizeof (Buffer), Format, VaListMarker);
- } else {
- AsciiBSPrint (Buffer, sizeof (Buffer), Format, BaseListMarker);
- }
- //
- // Send the print string to a Serial Port
- //
- SerialPortWrite ((UINT8 *)Buffer, AsciiStrLen (Buffer));
- }
- /**
- Prints a debug message to the debug output device if the specified
- error level is enabled.
- If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function
- GetDebugPrintErrorLevel (), then print the message specified by Format and
- the associated variable argument list to the debug output device.
- If Format is NULL, then ASSERT().
- @param ErrorLevel The error level of the debug message.
- @param Format Format string for the debug message to print.
- @param VaListMarker VA_LIST marker for the variable argument list.
- **/
- VOID
- EFIAPI
- DebugVPrint (
- IN UINTN ErrorLevel,
- IN CONST CHAR8 *Format,
- IN VA_LIST VaListMarker
- )
- {
- DebugPrintMarker (ErrorLevel, Format, VaListMarker, NULL);
- }
- /**
- Prints a debug message to the debug output device if the specified
- error level is enabled.
- This function use BASE_LIST which would provide a more compatible
- service than VA_LIST.
- If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function
- GetDebugPrintErrorLevel (), then print the message specified by Format and
- the associated variable argument list to the debug output device.
- If Format is NULL, then ASSERT().
- @param ErrorLevel The error level of the debug message.
- @param Format Format string for the debug message to print.
- @param BaseListMarker BASE_LIST marker for the variable argument list.
- **/
- VOID
- EFIAPI
- DebugBPrint (
- IN UINTN ErrorLevel,
- IN CONST CHAR8 *Format,
- IN BASE_LIST BaseListMarker
- )
- {
- DebugPrintMarker (ErrorLevel, Format, mVaListNull, BaseListMarker);
- }
- /**
- Convert an UINT32 value into HEX string sepcified by Buffer.
- @param Value The HEX value to convert to string
- @param Buffer The pointer to the target buffer to be filled with HEX string
- **/
- VOID
- FillHex (
- UINT32 Value,
- CHAR8 *Buffer
- )
- {
- INTN Idx;
- for (Idx = 7; Idx >= 0; Idx--) {
- Buffer[Idx] = mHexTable[Value & 0x0F];
- Value >>= 4;
- }
- }
- /**
- Prints an assert message containing a filename, line number, and description.
- This may be followed by a breakpoint or a dead loop.
- Print a message of the form "ASSERT <FileName>(<LineNumber>): <Description>\n"
- to the debug output device. If DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit of
- PcdDebugProperyMask is set then CpuBreakpoint() is called. Otherwise, if
- DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED bit of PcdDebugProperyMask is set then
- CpuDeadLoop() is called. If neither of these bits are set, then this function
- returns immediately after the message is printed to the debug output device.
- DebugAssert() must actively prevent recursion. If DebugAssert() is called while
- processing another DebugAssert(), then DebugAssert() must return immediately.
- If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.
- If Description is NULL, then a <Description> string of "(NULL) Description" is printed.
- **/
- VOID
- DebugAssertInternal (
- VOID
- )
- {
- CHAR8 Buffer[MAX_DEBUG_MESSAGE_LENGTH];
- UINT32 *Frame;
- Frame = (UINT32 *)GetStackFramePointer ();
- //
- // Generate the ASSERT() message in Ascii format
- //
- AsciiStrnCpyS (
- Buffer,
- sizeof(Buffer) / sizeof(CHAR8),
- "-> EBP:0x00000000 EIP:0x00000000\n",
- sizeof(Buffer) / sizeof(CHAR8) - 1
- );
- SerialPortWrite ((UINT8 *)"ASSERT DUMP:\n", 13);
- while (Frame != NULL) {
- FillHex ((UINT32)Frame, Buffer + 9);
- FillHex (Frame[1], Buffer + 9 + 8 + 8);
- SerialPortWrite ((UINT8 *)Buffer, AsciiStrLen (Buffer));
- if ((Frame[0] > (UINT32)Frame) && (Frame[0] < (UINT32)Frame + 0x00100000)) {
- Frame = (UINT32 *)Frame[0];
- } else {
- Frame = NULL;
- }
- }
- //
- // Dead loop
- //
- CpuDeadLoop ();
- }
- /**
- Prints an assert message containing a filename, line number, and description.
- This may be followed by a breakpoint or a dead loop.
- Print a message of the form "ASSERT <FileName>(<LineNumber>): <Description>\n"
- to the debug output device. If DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit of
- PcdDebugProperyMask is set then CpuBreakpoint() is called. Otherwise, if
- DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED bit of PcdDebugProperyMask is set then
- CpuDeadLoop() is called. If neither of these bits are set, then this function
- returns immediately after the message is printed to the debug output device.
- DebugAssert() must actively prevent recursion. If DebugAssert() is called while
- processing another DebugAssert(), then DebugAssert() must return immediately.
- If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.
- If Description is NULL, then a <Description> string of "(NULL) Description" is printed.
- @param FileName The pointer to the name of the source file that generated the assert condition.
- @param LineNumber The line number in the source file that generated the assert condition
- @param Description The pointer to the description of the assert condition.
- **/
- VOID
- EFIAPI
- DebugAssert (
- IN CONST CHAR8 *FileName,
- IN UINTN LineNumber,
- IN CONST CHAR8 *Description
- )
- {
- DebugAssertInternal ();
- }
- /**
- Fills a target buffer with PcdDebugClearMemoryValue, and returns the target buffer.
- This function fills Length bytes of Buffer with the value specified by
- PcdDebugClearMemoryValue, and returns Buffer.
- If Buffer is NULL, then ASSERT().
- If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
- @param Buffer The pointer to the target buffer to be filled with PcdDebugClearMemoryValue.
- @param Length The number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue.
- @return Buffer The pointer to the target buffer filled with PcdDebugClearMemoryValue.
- **/
- VOID *
- EFIAPI
- DebugClearMemory (
- OUT VOID *Buffer,
- IN UINTN Length
- )
- {
- return Buffer;
- }
- /**
- Returns TRUE if ASSERT() macros are enabled.
- This function returns TRUE if the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of
- PcdDebugProperyMask is set. Otherwise FALSE is returned.
- @retval TRUE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set.
- @retval FALSE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear.
- **/
- BOOLEAN
- EFIAPI
- DebugAssertEnabled (
- VOID
- )
- {
- return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED) != 0);
- }
- /**
- Returns TRUE if DEBUG() macros are enabled.
- This function returns TRUE if the DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of
- PcdDebugProperyMask is set. Otherwise FALSE is returned.
- @retval TRUE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is set.
- @retval FALSE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is clear.
- **/
- BOOLEAN
- EFIAPI
- DebugPrintEnabled (
- VOID
- )
- {
- return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_PRINT_ENABLED) != 0);
- }
- /**
- Returns TRUE if DEBUG_CODE() macros are enabled.
- This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of
- PcdDebugProperyMask is set. Otherwise FALSE is returned.
- @retval TRUE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set.
- @retval FALSE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is clear.
- **/
- BOOLEAN
- EFIAPI
- DebugCodeEnabled (
- VOID
- )
- {
- return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_CODE_ENABLED) != 0);
- }
- /**
- Returns TRUE if DEBUG_CLEAR_MEMORY() macro is enabled.
- This function returns TRUE if the DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of
- PcdDebugProperyMask is set. Otherwise FALSE is returned.
- @retval TRUE The DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is set.
- @retval FALSE The DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is clear.
- **/
- BOOLEAN
- EFIAPI
- DebugClearMemoryEnabled (
- VOID
- )
- {
- return (BOOLEAN) ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_CLEAR_MEMORY_ENABLED) != 0);
- }
- /**
- Returns TRUE if any one of the bit is set both in ErrorLevel and PcdFixedDebugPrintErrorLevel.
- This function compares the bit mask of ErrorLevel and PcdFixedDebugPrintErrorLevel.
- @retval TRUE Current ErrorLevel is supported.
- @retval FALSE Current ErrorLevel is not supported.
- **/
- BOOLEAN
- EFIAPI
- DebugPrintLevelEnabled (
- IN CONST UINTN ErrorLevel
- )
- {
- return (BOOLEAN) ((ErrorLevel & PcdGet32(PcdFixedDebugPrintErrorLevel)) != 0);
- }
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