X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=EmbeddedPkg%2FGdbStub%2FGdbStubInternal.h;h=9c3929c812b30cbb0527fd7cd34ef1c79ecc13e4;hb=HEAD;hp=659be6b38f50ee2bcb06d76f44bf2017085aa83b;hpb=3402aac7d985bf8a9f9d3c639f3fe93609380513;p=mirror_edk2.git diff --git a/EmbeddedPkg/GdbStub/GdbStubInternal.h b/EmbeddedPkg/GdbStub/GdbStubInternal.h index 659be6b38f..9c3929c812 100644 --- a/EmbeddedPkg/GdbStub/GdbStubInternal.h +++ b/EmbeddedPkg/GdbStub/GdbStubInternal.h @@ -3,13 +3,7 @@ Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
- 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. + SPDX-License-Identifier: BSD-2-Clause-Patent **/ @@ -34,54 +28,51 @@ #include #include -extern CONST CHAR8 mHexToStr[]; +extern CONST CHAR8 mHexToStr[]; // maximum size of input and output buffers // This value came from the show remote command of the gdb we tested against -#define MAX_BUF_SIZE 2000 +#define MAX_BUF_SIZE 2000 // maximum size of address buffer -#define MAX_ADDR_SIZE 32 +#define MAX_ADDR_SIZE 32 // maximum size of register number buffer -#define MAX_REG_NUM_BUF_SIZE 32 +#define MAX_REG_NUM_BUF_SIZE 32 // maximum size of length buffer -#define MAX_LENGTH_SIZE 32 +#define MAX_LENGTH_SIZE 32 // maximum size of T signal members -#define MAX_T_SIGNAL_SIZE 64 +#define MAX_T_SIGNAL_SIZE 64 // the mask used to clear all the cache -#define TF_BIT 0x00000100 - +#define TF_BIT 0x00000100 // // GDB Signal definitions - generic names for interrupts // -#define GDB_SIGILL 4 // Illegal instruction -#define GDB_SIGTRAP 5 // Trace Trap (Breakpoint and SingleStep) -#define GDB_SIGEMT 7 // Emulator Trap -#define GDB_SIGFPE 8 // Floating point exception -#define GDB_SIGSEGV 11 // Segment violation, page fault - +#define GDB_SIGILL 4 // Illegal instruction +#define GDB_SIGTRAP 5 // Trace Trap (Breakpoint and SingleStep) +#define GDB_SIGEMT 7 // Emulator Trap +#define GDB_SIGFPE 8 // Floating point exception +#define GDB_SIGSEGV 11 // Segment violation, page fault // // GDB File I/O Error values, zero means no error // Includes all general GDB Unix like error values // -#define GDB_EBADMEMADDRBUFSIZE 11 // the buffer that stores memory Address to be read from/written to is not the right size -#define GDB_EBADMEMLENGBUFSIZE 12 // the buffer that stores Length is not the right size -#define GDB_EBADMEMLENGTH 13 // Length, the given number of bytes to read or write, is not the right size -#define GDB_EBADMEMDATA 14 // one of the bytes or nibbles of the memory is leess than 0 -#define GDB_EBADMEMDATASIZE 15 // the memory data, 'XX..', is too short or too long -#define GDB_EBADBUFSIZE 21 // the buffer created is not the correct size -#define GDB_EINVALIDARG 31 // argument is invalid -#define GDB_ENOSPACE 41 // -#define GDB_EINVALIDBRKPOINTTYPE 51 // the breakpoint type is not recognized -#define GDB_EINVALIDREGNUM 61 // given register number is not valid: either <0 or >=Number of Registers -#define GDB_EUNKNOWN 255 // unknown - +#define GDB_EBADMEMADDRBUFSIZE 11 // the buffer that stores memory Address to be read from/written to is not the right size +#define GDB_EBADMEMLENGBUFSIZE 12 // the buffer that stores Length is not the right size +#define GDB_EBADMEMLENGTH 13 // Length, the given number of bytes to read or write, is not the right size +#define GDB_EBADMEMDATA 14 // one of the bytes or nibbles of the memory is less than 0 +#define GDB_EBADMEMDATASIZE 15 // the memory data, 'XX..', is too short or too long +#define GDB_EBADBUFSIZE 21 // the buffer created is not the correct size +#define GDB_EINVALIDARG 31 // argument is invalid +#define GDB_ENOSPACE 41 // +#define GDB_EINVALIDBRKPOINTTYPE 51 // the breakpoint type is not recognized +#define GDB_EINVALIDREGNUM 61 // given register number is not valid: either <0 or >=Number of Registers +#define GDB_EUNKNOWN 255 // unknown // // These devices are open by GDB so we can just read and write to them @@ -91,7 +82,7 @@ extern CONST CHAR8 mHexToStr[]; #define GDB_STDERR 0x02 // -//Define Register size for different architectures +// Define Register size for different architectures // #if defined (MDE_CPU_IA32) #define REG_SIZE 32 @@ -101,12 +92,12 @@ extern CONST CHAR8 mHexToStr[]; #define REG_SIZE 32 #endif -#define GDB_SERIAL_DEV_SIGNATURE SIGNATURE_32 ('g', 'd', 'b', 's') +#define GDB_SERIAL_DEV_SIGNATURE SIGNATURE_32 ('g', 'd', 'b', 's') typedef struct { - VENDOR_DEVICE_PATH VendorDevice; - UINT32 Index; // Suport more than one - EFI_DEVICE_PATH_PROTOCOL End; + VENDOR_DEVICE_PATH VendorDevice; + UINT32 Index; // Support more than one + EFI_DEVICE_PATH_PROTOCOL End; } GDB_SERIAL_DEVICE_PATH; // @@ -119,25 +110,22 @@ typedef struct { // DevicePath EFI_DEVICE_PATH_PROTOCOL *: Device path of the serial device // typedef struct { - UINTN Signature; - EFI_HANDLE Handle; - EFI_SERIAL_IO_PROTOCOL SerialIo; - EFI_SERIAL_IO_MODE SerialMode; - GDB_SERIAL_DEVICE_PATH DevicePath; - INTN InFileDescriptor; - INTN OutFileDescriptor; + UINTN Signature; + EFI_HANDLE Handle; + EFI_SERIAL_IO_PROTOCOL SerialIo; + EFI_SERIAL_IO_MODE SerialMode; + GDB_SERIAL_DEVICE_PATH DevicePath; + INTN InFileDescriptor; + INTN OutFileDescriptor; } GDB_SERIAL_DEV; - -#define GDB_SERIAL_DEV_FROM_THIS(a) CR (a, GDB_SERIAL_DEV, SerialIo, GDB_SERIAL_DEV_SIGNATURE) - +#define GDB_SERIAL_DEV_FROM_THIS(a) CR (a, GDB_SERIAL_DEV, SerialIo, GDB_SERIAL_DEV_SIGNATURE) typedef struct { - EFI_EXCEPTION_TYPE Exception; - UINT8 SignalNo; + EFI_EXCEPTION_TYPE Exception; + UINT8 SignalNo; } EFI_EXCEPTION_TYPE_ENTRY; - #if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64) // @@ -147,17 +135,17 @@ typedef struct { // typedef union { struct { - UINT32 B0:1; // Breakpoint condition detected - UINT32 B1:1; // Breakpoint condition detected - UINT32 B2:1; // Breakpoint condition detected - UINT32 B3:1; // Breakpoint condition detected - UINT32 Reserved_1:9; // Reserved - UINT32 BD:1; // Debug register access detected - UINT32 BS:1; // Single step - UINT32 BT:1; // Task switch - UINT32 Reserved_2:16; // Reserved + UINT32 B0 : 1; // Breakpoint condition detected + UINT32 B1 : 1; // Breakpoint condition detected + UINT32 B2 : 1; // Breakpoint condition detected + UINT32 B3 : 1; // Breakpoint condition detected + UINT32 Reserved_1 : 9; // Reserved + UINT32 BD : 1; // Debug register access detected + UINT32 BS : 1; // Single step + UINT32 BT : 1; // Task switch + UINT32 Reserved_2 : 16; // Reserved } Bits; - UINTN UintN; + UINTN UintN; } IA32_DR6; // @@ -167,65 +155,64 @@ typedef union { // typedef union { struct { - UINT32 L0:1; // Local breakpoint enable - UINT32 G0:1; // Global breakpoint enable - UINT32 L1:1; // Local breakpoint enable - UINT32 G1:1; // Global breakpoint enable - UINT32 L2:1; // Local breakpoint enable - UINT32 G2:1; // Global breakpoint enable - UINT32 L3:1; // Local breakpoint enable - UINT32 G3:1; // Global breakpoint enable - UINT32 LE:1; // Local exact breakpoint enable - UINT32 GE:1; // Global exact breakpoint enable - UINT32 Reserved_1:3; // Reserved - UINT32 GD:1; // Global detect enable - UINT32 Reserved_2:2; // Reserved - UINT32 RW0:2; // Read/Write field - UINT32 LEN0:2; // Length field - UINT32 RW1:2; // Read/Write field - UINT32 LEN1:2; // Length field - UINT32 RW2:2; // Read/Write field - UINT32 LEN2:2; // Length field - UINT32 RW3:2; // Read/Write field - UINT32 LEN3:2; // Length field + UINT32 L0 : 1; // Local breakpoint enable + UINT32 G0 : 1; // Global breakpoint enable + UINT32 L1 : 1; // Local breakpoint enable + UINT32 G1 : 1; // Global breakpoint enable + UINT32 L2 : 1; // Local breakpoint enable + UINT32 G2 : 1; // Global breakpoint enable + UINT32 L3 : 1; // Local breakpoint enable + UINT32 G3 : 1; // Global breakpoint enable + UINT32 LE : 1; // Local exact breakpoint enable + UINT32 GE : 1; // Global exact breakpoint enable + UINT32 Reserved_1 : 3; // Reserved + UINT32 GD : 1; // Global detect enable + UINT32 Reserved_2 : 2; // Reserved + UINT32 RW0 : 2; // Read/Write field + UINT32 LEN0 : 2; // Length field + UINT32 RW1 : 2; // Read/Write field + UINT32 LEN1 : 2; // Length field + UINT32 RW2 : 2; // Read/Write field + UINT32 LEN2 : 2; // Length field + UINT32 RW3 : 2; // Read/Write field + UINT32 LEN3 : 2; // Length field } Bits; - UINTN UintN; + UINTN UintN; } IA32_DR7; #endif /* if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64) */ typedef enum { - InstructionExecution, //Hardware breakpoint - DataWrite, //watch - DataRead, //rwatch - DataReadWrite, //awatch - SoftwareBreakpoint, //Software breakpoint + InstructionExecution, // Hardware breakpoint + DataWrite, // watch + DataRead, // rwatch + DataReadWrite, // awatch + SoftwareBreakpoint, // Software breakpoint NotSupported } BREAK_TYPE; // // Array of exception types that need to be hooked by the debugger // -extern EFI_EXCEPTION_TYPE_ENTRY gExceptionType[]; +extern EFI_EXCEPTION_TYPE_ENTRY gExceptionType[]; // // Set TRUE if F Reply package signals a ctrl-c. We can not process the Ctrl-c // here we need to wait for the periodic callback to do this. // -extern BOOLEAN gCtrlCBreakFlag; +extern BOOLEAN gCtrlCBreakFlag; // // If the periodic callback is called while we are processing an F packet we need -// to let the callback know to not read from the serail stream as it could steal -// characters from the F reponse packet +// to let the callback know to not read from the serial stream as it could steal +// characters from the F response packet // -extern BOOLEAN gProcessingFPacket; - +extern BOOLEAN gProcessingFPacket; // The offsets of registers SystemContext. // The fields in the array are in the gdb ordering. // -extern UINTN gRegisterOffsets[]; +extern UINTN gRegisterOffsets[]; /** Return the number of entries in the gExceptionType[] @@ -237,7 +224,6 @@ MaxEfiException ( VOID ); - /** Return the number of entries in the gRegisters[] @@ -248,7 +234,6 @@ MaxRegisterCount ( VOID ); - /** Check to see if the ISA is supported. ISA = Instruction Set Architecture @@ -258,10 +243,9 @@ MaxRegisterCount ( **/ BOOLEAN CheckIsa ( - IN EFI_INSTRUCTION_SET_ARCHITECTURE Isa + IN EFI_INSTRUCTION_SET_ARCHITECTURE Isa ); - /** Send the T signal with the given exception type (in gdb order) and possibly with n:r pairs related to the watchpoints @@ -272,10 +256,9 @@ CheckIsa ( VOID GdbSendTSignal ( IN EFI_SYSTEM_CONTEXT SystemContext, - IN UINT8 GdbExceptionType + IN UINT8 GdbExceptionType ); - /** Translates the EFI mapping to GDB mapping @@ -284,10 +267,9 @@ GdbSendTSignal ( **/ UINT8 ConvertEFItoGDBtype ( - IN EFI_EXCEPTION_TYPE EFIExceptionType + IN EFI_EXCEPTION_TYPE EFIExceptionType ); - /** Empties the given buffer @param *Buf pointer to the first element in buffer to be emptied @@ -297,20 +279,18 @@ EmptyBuffer ( IN CHAR8 *Buf ); - /** Converts an 8-bit Hex Char into a INTN. @param Char - the hex character to be converted into UINTN - @retval a INTN, from 0 to 15, that corressponds to Char + @retval a INTN, from 0 to 15, that corresponds to Char -1 if Char is not a hex character **/ INTN HexCharToInt ( - IN CHAR8 Char + IN CHAR8 Char ); - /** 'E NN' Send an error with the given error number after converting to hex. The error number is put into the buffer in hex. '255' is the biggest errno we can send. @@ -321,23 +301,23 @@ HexCharToInt ( VOID EFIAPI SendError ( - IN UINT8 ErrorNum + IN UINT8 ErrorNum ); - /** Send 'OK' when the function is done executing successfully. **/ VOID +EFIAPI SendSuccess ( VOID ); - /** Send empty packet to specify that particular command/functionality is not supported. **/ VOID +EFIAPI SendNotSupported ( VOID ); @@ -353,29 +333,28 @@ ReadNthRegister ( IN CHAR8 *InBuffer ); - /** ‘g’ Reads the general registers into an output buffer and sends it as a packet @param SystemContext Register content at time of the exception **/ VOID +EFIAPI ReadGeneralRegisters ( IN EFI_SYSTEM_CONTEXT SystemContext ); - /** ‘P n...=r...’ Writes the new value of n-th register received into the input buffer to the n-th register @param SystemContext Register content at time of the exception @param InBuffer This is the input buffer received from gdb server **/ VOID +EFIAPI WriteNthRegister ( IN EFI_SYSTEM_CONTEXT SystemContext, IN CHAR8 *InBuffer ); - /** ‘G XX...’ Writes the new values received into the input buffer to the general registers @param SystemContext Register content at time of the exception @@ -383,38 +362,38 @@ WriteNthRegister ( **/ VOID +EFIAPI WriteGeneralRegisters ( IN EFI_SYSTEM_CONTEXT SystemContext, IN CHAR8 *InBuffer ); - /** ‘m addr,length ’ - Find the Length of the area to read and the start addres. Finally, pass them to + Find the Length of the area to read and the start address. Finally, pass them to another function, TransferFromMemToOutBufAndSend, that will read from that memory space and send it as a packet. @param *PacketData Pointer to Payload data for the packet **/ VOID +EFIAPI ReadFromMemory ( IN CHAR8 *PacketData ); - /** ‘M addr,length :XX...’ - Find the Length of the area in bytes to write and the start addres. Finally, pass them to + Find the Length of the area in bytes to write and the start address. Finally, pass them to another function, TransferFromInBufToMem, that will write to that memory space the info in the input buffer. @param PacketData Pointer to Payload data for the packet **/ VOID +EFIAPI WriteToMemory ( - IN CHAR8 *PacketData + IN CHAR8 *PacketData ); - /** ‘c [addr ]’ Continue. addr is Address to resume. If addr is omitted, resume at current Address. @@ -424,12 +403,12 @@ WriteToMemory ( **/ VOID +EFIAPI ContinueAtAddress ( - IN EFI_SYSTEM_CONTEXT SystemContext, - IN CHAR8 *PacketData + IN EFI_SYSTEM_CONTEXT SystemContext, + IN CHAR8 *PacketData ); - /** ‘s [addr ]’ Single step. addr is the Address at which to resume. If addr is omitted, resume at same Address. @@ -438,6 +417,7 @@ ContinueAtAddress ( @param PacketData Pointer to Payload data for the packet **/ VOID +EFIAPI SingleStep ( IN EFI_SYSTEM_CONTEXT SystemContext, IN CHAR8 *PacketData @@ -463,7 +443,6 @@ RemoveSingleStep ( IN EFI_SYSTEM_CONTEXT SystemContext ); - /** ‘Z1, [addr], [length]’ ‘Z2, [addr], [length]’ @@ -478,12 +457,11 @@ RemoveSingleStep ( **/ VOID EFIAPI -InsertBreakPoint( +InsertBreakPoint ( IN EFI_SYSTEM_CONTEXT SystemContext, IN CHAR8 *PacketData ); - /** ‘z1, [addr], [length]’ ‘z2, [addr], [length]’ @@ -498,14 +476,13 @@ InsertBreakPoint( **/ VOID EFIAPI -RemoveBreakPoint( +RemoveBreakPoint ( IN EFI_SYSTEM_CONTEXT SystemContext, IN CHAR8 *PacketData ); - /** - Exception Hanldler for GDB. It will be called for all exceptions + Exception Handler for GDB. It will be called for all exceptions registered via the gExceptionType[] array. @param ExceptionType Exception that is being processed @@ -519,7 +496,6 @@ GdbExceptionHandler ( IN OUT EFI_SYSTEM_CONTEXT SystemContext ); - /** Periodic callback for GDB. This function is used to catch a ctrl-c or other break in type command from GDB. @@ -533,9 +509,8 @@ GdbPeriodicCallBack ( IN OUT EFI_SYSTEM_CONTEXT SystemContext ); - /** - Make two serail consoles: 1) StdIn and StdOut via GDB. 2) StdErr via GDB. + Make two serial consoles: 1) StdIn and StdOut via GDB. 2) StdErr via GDB. These console show up on the remote system running GDB @@ -546,15 +521,14 @@ GdbInitializeSerialConsole ( VOID ); - /** Send a GDB Remote Serial Protocol Packet $PacketData#checksum PacketData is passed in and this function adds the packet prefix '$', - the packet teminating character '#' and the two digit checksum. + the packet terminating character '#' and the two digit checksum. If an ack '+' is not sent resend the packet, but timeout eventually so we don't end up - in an infinit loop. This is so if you unplug the debugger code just keeps running + in an infinite loop. This is so if you unplug the debugger code just keeps running @param PacketData Payload data for the packet @@ -563,17 +537,16 @@ GdbInitializeSerialConsole ( **/ UINTN SendPacket ( - IN CHAR8 *PacketData + IN CHAR8 *PacketData ); - /** Receive a GDB Remote Serial Protocol Packet $PacketData#checksum PacketData is passed in and this function adds the packet prefix '$', - the packet teminating character '#' and the two digit checksum. + the packet terminating character '#' and the two digit checksum. - If host re-starts sending a packet without ending the previous packet, only the last valid packet is proccessed. + If host re-starts sending a packet without ending the previous packet, only the last valid packet is processed. (In other words, if received packet is '$12345$12345$123456#checksum', only '$123456#checksum' will be processed.) If an ack '+' is not sent resend the packet @@ -585,10 +558,9 @@ SendPacket ( **/ UINTN ReceivePacket ( - OUT CHAR8 *PacketData, - IN UINTN PacketDataSize - ); - + OUT CHAR8 *PacketData, + IN UINTN PacketDataSize + ); /** Read data from a FileDescriptor. On success number of bytes read is returned. Zero indicates @@ -604,12 +576,11 @@ ReceivePacket ( **/ INTN GdbRead ( - IN INTN FileDescriptor, - OUT VOID *Buffer, - IN UINTN Count + IN INTN FileDescriptor, + OUT VOID *Buffer, + IN UINTN Count ); - /** Write data to a FileDescriptor. On success number of bytes written is returned. Zero indicates nothing was written. On error -1 is returned. @@ -624,29 +595,29 @@ GdbRead ( **/ INTN GdbWrite ( - IN INTN FileDescriptor, - OUT CONST VOID *Buffer, - IN UINTN Count + IN INTN FileDescriptor, + OUT CONST VOID *Buffer, + IN UINTN Count ); UINTN * FindPointerToRegister ( - IN EFI_SYSTEM_CONTEXT SystemContext, - IN UINTN RegNumber + IN EFI_SYSTEM_CONTEXT SystemContext, + IN UINTN RegNumber ); CHAR8 * BasicReadRegister ( - IN EFI_SYSTEM_CONTEXT SystemContext, - IN UINTN RegNumber, - IN CHAR8 *OutBufPtr + IN EFI_SYSTEM_CONTEXT SystemContext, + IN UINTN RegNumber, + IN CHAR8 *OutBufPtr ); VOID TransferFromInBufToMem ( - IN UINTN Length, - IN UINT8 *Address, - IN CHAR8 *NewData + IN UINTN Length, + IN UINT8 *Address, + IN CHAR8 *NewData ); VOID @@ -657,22 +628,22 @@ TransferFromMemToOutBufAndSend ( CHAR8 * BasicWriteRegister ( - IN EFI_SYSTEM_CONTEXT SystemContext, - IN UINTN RegNumber, - IN CHAR8 *InBufPtr + IN EFI_SYSTEM_CONTEXT SystemContext, + IN UINTN RegNumber, + IN CHAR8 *InBufPtr ); VOID PrintReg ( - EFI_SYSTEM_CONTEXT SystemContext + EFI_SYSTEM_CONTEXT SystemContext ); UINTN ParseBreakpointPacket ( - IN CHAR8 *PacketData, - OUT UINTN *Type, - OUT UINTN *Address, - OUT UINTN *Length + IN CHAR8 *PacketData, + OUT UINTN *Type, + OUT UINTN *Address, + OUT UINTN *Length ); UINTN @@ -714,18 +685,18 @@ EnableDebugRegister ( EFI_STATUS FindMatchingDebugRegister ( - IN EFI_SYSTEM_CONTEXT SystemContext, - IN UINTN Address, - IN UINTN Length, - IN UINTN Type, - OUT UINTN *Register - ); + IN EFI_SYSTEM_CONTEXT SystemContext, + IN UINTN Address, + IN UINTN Length, + IN UINTN Type, + OUT UINTN *Register + ); EFI_STATUS DisableDebugRegister ( - IN EFI_SYSTEM_CONTEXT SystemContext, - IN UINTN Register - ); + IN EFI_SYSTEM_CONTEXT SystemContext, + IN UINTN Register + ); VOID InitializeProcessor ( @@ -739,8 +710,8 @@ ValidateAddress ( BOOLEAN ValidateException ( - IN EFI_EXCEPTION_TYPE ExceptionType, - IN OUT EFI_SYSTEM_CONTEXT SystemContext + IN EFI_EXCEPTION_TYPE ExceptionType, + IN OUT EFI_SYSTEM_CONTEXT SystemContext ); #endif