From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001 From: Angelos Mouzakitis Date: Tue, 10 Oct 2023 14:33:42 +0000 Subject: Add submodule dependency files Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec --- .../Library/BaseDebugLibSerialPort/DebugLib.c | 374 +++++++++++++++++++++ 1 file changed, 374 insertions(+) create mode 100644 roms/edk2/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c (limited to 'roms/edk2/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c') diff --git a/roms/edk2/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c b/roms/edk2/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c new file mode 100644 index 000000000..aeeab8573 --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c @@ -0,0 +1,374 @@ +/** @file + Base Debug library instance base on Serial Port library. + It uses PrintLib to send debug messages to serial port device. + + NOTE: If the Serial Port library enables hardware flow control, then a call + to DebugPrint() or DebugAssert() may hang if writes to the serial port are + being blocked. This may occur if a key(s) are pressed in a terminal emulator + used to monitor the DEBUG() and ASSERT() messages. + + Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include +#include +#include +#include +#include +#include +#include + +// +// Define the maximum debug and assert message length that this library supports +// +#define MAX_DEBUG_MESSAGE_LENGTH 0x100 + +// +// VA_LIST can not initialize to NULL for all compiler, so we use this to +// indicate a null VA_LIST +// +VA_LIST mVaListNull; + +/** + The constructor function initialize the Serial Port Library + + @retval EFI_SUCCESS The constructor always returns RETURN_SUCCESS. + +**/ +RETURN_STATUS +EFIAPI +BaseDebugLibSerialPortConstructor ( + VOID + ) +{ + return SerialPortInitialize (); +} + +/** + 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(). + // + ASSERT (Format != NULL); + + // + // Check driver debug mask value and global mask + // + if ((ErrorLevel & GetDebugPrintErrorLevel ()) == 0) { + return; + } + + // + // 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); +} + + +/** + 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 (): \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 string of "(NULL) Filename" is printed. + If Description is NULL, then a 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 + ) +{ + CHAR8 Buffer[MAX_DEBUG_MESSAGE_LENGTH]; + + // + // Generate the ASSERT() message in Ascii format + // + AsciiSPrint (Buffer, sizeof (Buffer), "ASSERT [%a] %a(%d): %a\n", gEfiCallerBaseName, FileName, LineNumber, Description); + + // + // Send the print string to the Console Output device + // + SerialPortWrite ((UINT8 *)Buffer, AsciiStrLen (Buffer)); + + // + // Generate a Breakpoint, DeadLoop, or NOP based on PCD settings + // + if ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED) != 0) { + CpuBreakpoint (); + } else if ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED) != 0) { + CpuDeadLoop (); + } +} + + +/** + 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 + ) +{ + // + // If Buffer is NULL, then ASSERT(). + // + ASSERT (Buffer != NULL); + + // + // SetMem() checks for the the ASSERT() condition on Length and returns Buffer + // + return SetMem (Buffer, Length, PcdGet8(PcdDebugClearMemoryValue)); +} + + +/** + 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); +} + -- cgit 1.2.3-korg