diff options
| author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
|---|---|---|
| committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
| commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
| tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /EmbeddedPkg/GdbStub | |
| parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
| download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz | |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'EmbeddedPkg/GdbStub')
| -rw-r--r-- | EmbeddedPkg/GdbStub/Arm/Processor.c | 703 | ||||
| -rw-r--r-- | EmbeddedPkg/GdbStub/GdbStub.c | 1257 | ||||
| -rw-r--r-- | EmbeddedPkg/GdbStub/GdbStub.inf | 77 | ||||
| -rw-r--r-- | EmbeddedPkg/GdbStub/GdbStubInternal.h | 746 | ||||
| -rw-r--r-- | EmbeddedPkg/GdbStub/Ia32/Processor.c | 993 | ||||
| -rw-r--r-- | EmbeddedPkg/GdbStub/SerialIo.c | 553 | ||||
| -rw-r--r-- | EmbeddedPkg/GdbStub/X64/Processor.c | 963 |
7 files changed, 0 insertions, 5292 deletions
diff --git a/EmbeddedPkg/GdbStub/Arm/Processor.c b/EmbeddedPkg/GdbStub/Arm/Processor.c deleted file mode 100644 index 96b4f570c4..0000000000 --- a/EmbeddedPkg/GdbStub/Arm/Processor.c +++ /dev/null @@ -1,703 +0,0 @@ -/** @file
- Processor specific parts of the GDB stub
-
- Copyright (c) 2008 - 2009, Apple Inc. 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 <GdbStubInternal.h>
-#include <Library/CacheMaintenanceLib.h>
-#include <Library/PrintLib.h>
-
-//
-// Array of exception types that need to be hooked by the debugger
-// (efi, gdb) //efi number
-//
-EFI_EXCEPTION_TYPE_ENTRY gExceptionType[] = {
- { EXCEPT_ARM_SOFTWARE_INTERRUPT, GDB_SIGTRAP }
-// { EXCEPT_ARM_UNDEFINED_INSTRUCTION, GDB_SIGTRAP },
-// { EXCEPT_ARM_PREFETCH_ABORT, GDB_SIGTRAP },
-// { EXCEPT_ARM_DATA_ABORT, GDB_SIGEMT },
-// { EXCEPT_ARM_RESERVED, GDB_SIGILL }
-};
-
-// Shut up some annoying RVCT warnings
-#ifdef __CC_ARM
-#pragma diag_suppress 1296
-#endif
-
-UINTN gRegisterOffsets[] = {
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R0),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R1),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R2),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R3),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R4),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R5),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R6),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R7),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R8),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R9),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R10),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R11),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, R12),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, SP),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, LR),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, PC),
- 0x00000F01, // f0
- 0x00000F02,
- 0x00000F03,
- 0x00000F11, // f1
- 0x00000F12,
- 0x00000F13,
- 0x00000F21, // f2
- 0x00000F22,
- 0x00000F23,
- 0x00000F31, // f3
- 0x00000F32,
- 0x00000F33,
- 0x00000F41, // f4
- 0x00000F42,
- 0x00000F43,
- 0x00000F51, // f5
- 0x00000F52,
- 0x00000F53,
- 0x00000F61, // f6
- 0x00000F62,
- 0x00000F63,
- 0x00000F71, // f7
- 0x00000F72,
- 0x00000F73,
- 0x00000FFF, // fps
- OFFSET_OF(EFI_SYSTEM_CONTEXT_ARM, CPSR)
-};
-
-// restore warnings for RVCT
-#ifdef __CC_ARM
-#pragma diag_default 1296
-#endif
-
-/**
- Return the number of entries in the gExceptionType[]
-
- @retval UINTN, the number of entries in the gExceptionType[] array.
- **/
-UINTN
-MaxEfiException (
- VOID
- )
-{
- return sizeof (gExceptionType) / sizeof (EFI_EXCEPTION_TYPE_ENTRY);
-}
-
-
-/**
- Return the number of entries in the gRegisters[]
-
- @retval UINTN, the number of entries (registers) in the gRegisters[] array.
- **/
-UINTN
-MaxRegisterCount (
- VOID
- )
-{
- return sizeof (gRegisterOffsets) / sizeof (UINTN);
-}
-
-
-/**
- Check to see if the ISA is supported.
- ISA = Instruction Set Architecture
-
- @retval TRUE if Isa is supported
-
-**/
-BOOLEAN
-CheckIsa (
- IN EFI_INSTRUCTION_SET_ARCHITECTURE Isa
- )
-{
- if (Isa == IsaArm) {
- return TRUE;
- } else {
- return FALSE;
- }
-}
-
-
-/**
- This takes in the register number and the System Context, and returns a pointer to the RegNumber-th register in gdb ordering
- It is, by default, set to find the register pointer of the ARM member
- @param SystemContext Register content at time of the exception
- @param RegNumber The register to which we want to find a pointer
- @retval the pointer to the RegNumber-th pointer
- **/
-UINTN *
-FindPointerToRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber
- )
-{
- UINT8 *TempPtr;
- ASSERT(gRegisterOffsets[RegNumber] < 0xF00);
- TempPtr = ((UINT8 *)SystemContext.SystemContextArm) + gRegisterOffsets[RegNumber];
- return (UINT32 *)TempPtr;
-}
-
-
-/**
- Adds the RegNumber-th register's value to the output buffer, starting at the given OutBufPtr
- @param SystemContext Register content at time of the exception
- @param RegNumber the number of the register that we want to read
- @param OutBufPtr pointer to the output buffer's end. the new data will be added from this point on.
- @retval the pointer to the next character of the output buffer that is available to be written on.
- **/
-CHAR8 *
-BasicReadRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *OutBufPtr
- )
-{
- UINTN RegSize;
- CHAR8 Char;
-
- if (gRegisterOffsets[RegNumber] > 0xF00) {
- AsciiSPrint (OutBufPtr, 9, "00000000");
- OutBufPtr += 8;
- return OutBufPtr;
- }
-
- RegSize = 0;
- while (RegSize < 32) {
- Char = mHexToStr[(UINT8)((*FindPointerToRegister (SystemContext, RegNumber) >> (RegSize+4)) & 0xf)];
- if ((Char >= 'A') && (Char <= 'F')) {
- Char = Char - 'A' + 'a';
- }
- *OutBufPtr++ = Char;
-
- Char = mHexToStr[(UINT8)((*FindPointerToRegister (SystemContext, RegNumber) >> RegSize) & 0xf)];
- if ((Char >= 'A') && (Char <= 'F')) {
- Char = Char - 'A' + 'a';
- }
- *OutBufPtr++ = Char;
-
- RegSize = RegSize + 8;
- }
- return OutBufPtr;
-}
-
-
-/**
- Reads the n-th register's value into an output buffer and sends it as a packet
- @param SystemContext Register content at time of the exception
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-VOID
-ReadNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN RegNumber;
- CHAR8 OutBuffer[9]; // 1 reg=8 hex chars, and the end '\0' (escape seq)
- CHAR8 *OutBufPtr; // pointer to the output buffer
-
- RegNumber = AsciiStrHexToUintn (&InBuffer[1]);
-
- if (RegNumber >= MaxRegisterCount ()) {
- SendError (GDB_EINVALIDREGNUM);
- return;
- }
-
- OutBufPtr = OutBuffer;
- OutBufPtr = BasicReadRegister (SystemContext, RegNumber, OutBufPtr);
-
- *OutBufPtr = '\0'; // the end of the buffer
- SendPacket (OutBuffer);
-}
-
-
-/**
- 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
- )
-{
- UINTN Index;
- CHAR8 *OutBuffer;
- CHAR8 *OutBufPtr;
- UINTN RegisterCount = MaxRegisterCount ();
-
- // It is not safe to allocate pool here....
- OutBuffer = AllocatePool ((RegisterCount * 8) + 1); // 8 bytes per register in string format plus a null to terminate
- OutBufPtr = OutBuffer;
- for (Index = 0; Index < RegisterCount; Index++) {
- OutBufPtr = BasicReadRegister (SystemContext, Index, OutBufPtr);
- }
-
- *OutBufPtr = '\0';
- SendPacket (OutBuffer);
- FreePool (OutBuffer);
-}
-
-
-/**
- Adds the RegNumber-th register's value to the output buffer, starting at the given OutBufPtr
- @param SystemContext Register content at time of the exception
- @param RegNumber the number of the register that we want to write
- @param InBufPtr pointer to the output buffer. the new data will be extracted from the input buffer from this point on.
- @retval the pointer to the next character of the input buffer that can be used
- **/
-CHAR8
-*BasicWriteRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *InBufPtr
- )
-{
- UINTN RegSize;
- UINTN TempValue; // the value transferred from a hex char
- UINT32 NewValue; // the new value of the RegNumber-th Register
-
- if (gRegisterOffsets[RegNumber] > 0xF00) {
- return InBufPtr + 8;
- }
-
- NewValue = 0;
- RegSize = 0;
- while (RegSize < 32) {
- TempValue = HexCharToInt (*InBufPtr++);
-
- if ((INTN)TempValue < 0) {
- SendError (GDB_EBADMEMDATA);
- return NULL;
- }
-
- NewValue += (TempValue << (RegSize+4));
- TempValue = HexCharToInt (*InBufPtr++);
-
- if ((INTN)TempValue < 0) {
- SendError (GDB_EBADMEMDATA);
- return NULL;
- }
-
- NewValue += (TempValue << RegSize);
- RegSize = RegSize + 8;
- }
- *(FindPointerToRegister (SystemContext, RegNumber)) = NewValue;
- return InBufPtr;
-}
-
-
-/** ‘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 Ponter to the input buffer received from gdb server
- **/
-VOID
-WriteNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN RegNumber;
- CHAR8 RegNumBuffer[MAX_REG_NUM_BUF_SIZE]; // put the 'n..' part of the message into this array
- CHAR8 *RegNumBufPtr;
- CHAR8 *InBufPtr; // pointer to the input buffer
-
- // find the register number to write
- InBufPtr = &InBuffer[1];
- RegNumBufPtr = RegNumBuffer;
- while (*InBufPtr != '=') {
- *RegNumBufPtr++ = *InBufPtr++;
- }
- *RegNumBufPtr = '\0';
- RegNumber = AsciiStrHexToUintn (RegNumBuffer);
-
- // check if this is a valid Register Number
- if (RegNumber >= MaxRegisterCount ()) {
- SendError (GDB_EINVALIDREGNUM);
- return;
- }
- InBufPtr++; // skips the '=' character
- BasicWriteRegister (SystemContext, RegNumber, InBufPtr);
- SendSuccess();
-}
-
-
-/** ‘G XX...’
- Writes the new values received into the input buffer to the general registers
- @param SystemContext Register content at time of the exception
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-
-VOID
-EFIAPI
-WriteGeneralRegisters (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN i;
- CHAR8 *InBufPtr; /// pointer to the input buffer
- UINTN MinLength;
- UINTN RegisterCount = MaxRegisterCount ();
-
- MinLength = (RegisterCount * 8) + 1; // 'G' plus the registers in ASCII format
-
- if (AsciiStrLen (InBuffer) < MinLength) {
- //Bad message. Message is not the right length
- SendError (GDB_EBADBUFSIZE);
- return;
- }
-
- InBufPtr = &InBuffer[1];
-
- // Read the new values for the registers from the input buffer to an array, NewValueArray.
- // The values in the array are in the gdb ordering
- for (i = 0; i < RegisterCount; i++) {
- InBufPtr = BasicWriteRegister (SystemContext, i, InBufPtr);
- }
-
- SendSuccess ();
-}
-
-// What about Thumb?
-// Use SWI 0xdbdbdb as the debug instruction
-#define GDB_ARM_BKPT 0xefdbdbdb
-
-BOOLEAN mSingleStepActive = FALSE;
-UINT32 mSingleStepPC;
-UINT32 mSingleStepData;
-UINTN mSingleStepDataSize;
-
-typedef struct {
- LIST_ENTRY Link;
- UINT64 Signature;
- UINT32 Address;
- UINT32 Instruction;
-} ARM_SOFTWARE_BREAKPOINT;
-
-#define ARM_SOFTWARE_BREAKPOINT_SIGNATURE SIGNATURE_64('A', 'R', 'M', 'B', 'R', 'K', 'P', 'T')
-#define ARM_SOFTWARE_BREAKPOINT_FROM_LINK(a) CR(a, ARM_SOFTWARE_BREAKPOINT, Link, ARM_SOFTWARE_BREAKPOINT_SIGNATURE)
-
-LIST_ENTRY BreakpointList;
-
-/**
- Insert Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-AddSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- if (mSingleStepActive) {
- // Currently don't support nesting
- return;
- }
- mSingleStepActive = TRUE;
-
- mSingleStepPC = SystemContext.SystemContextArm->PC;
-
- mSingleStepDataSize = sizeof (UINT32);
- mSingleStepData = (*(UINT32 *)mSingleStepPC);
- *(UINT32 *)mSingleStepPC = GDB_ARM_BKPT;
- if (*(UINT32 *)mSingleStepPC != GDB_ARM_BKPT) {
- // For some reason our breakpoint did not take
- mSingleStepActive = FALSE;
- }
-
- InvalidateInstructionCacheRange ((VOID *)mSingleStepPC, mSingleStepDataSize);
- //DEBUG((EFI_D_ERROR, "AddSingleStep at 0x%08x (was: 0x%08x is:0x%08x)\n", SystemContext.SystemContextArm->PC, mSingleStepData, *(UINT32 *)mSingleStepPC));
-}
-
-
-/**
- Remove Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-RemoveSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- if (!mSingleStepActive) {
- return;
- }
-
- if (mSingleStepDataSize == sizeof (UINT16)) {
- *(UINT16 *)mSingleStepPC = (UINT16)mSingleStepData;
- } else {
- //DEBUG((EFI_D_ERROR, "RemoveSingleStep at 0x%08x (was: 0x%08x is:0x%08x)\n", SystemContext.SystemContextArm->PC, *(UINT32 *)mSingleStepPC, mSingleStepData));
- *(UINT32 *)mSingleStepPC = mSingleStepData;
- }
- InvalidateInstructionCacheRange ((VOID *)mSingleStepPC, mSingleStepDataSize);
- mSingleStepActive = FALSE;
-}
-
-
-
-/**
- Continue. addr is Address to resume. If addr is omitted, resume at current
- Address.
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-ContinueAtAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- if (PacketData[1] != '\0') {
- SystemContext.SystemContextArm->PC = AsciiStrHexToUintn (&PacketData[1]);
- }
-}
-
-
-/** ‘s [addr ]’
- Single step. addr is the Address at which to resume. If addr is omitted, resume
- at same Address.
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-SingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- SendNotSupported ();
-}
-
-UINTN
-GetBreakpointDataAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- )
-{
- return 0;
-}
-
-UINTN
-GetBreakpointDetected (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- return 0;
-}
-
-BREAK_TYPE
-GetBreakpointType (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- )
-{
- return NotSupported;
-}
-
-ARM_SOFTWARE_BREAKPOINT *
-SearchBreakpointList (
- IN UINT32 Address
- )
-{
- LIST_ENTRY *Current;
- ARM_SOFTWARE_BREAKPOINT *Breakpoint;
-
- Current = GetFirstNode (&BreakpointList);
- while (!IsNull (&BreakpointList, Current)) {
- Breakpoint = ARM_SOFTWARE_BREAKPOINT_FROM_LINK(Current);
-
- if (Address == Breakpoint->Address) {
- return Breakpoint;
- }
-
- Current = GetNextNode (&BreakpointList, Current);
- }
-
- return NULL;
-}
-
-VOID
-SetBreakpoint (
- IN UINT32 Address
- )
-{
- ARM_SOFTWARE_BREAKPOINT *Breakpoint;
-
- Breakpoint = SearchBreakpointList (Address);
-
- if (Breakpoint != NULL) {
- return;
- }
-
- // create and fill breakpoint structure
- Breakpoint = AllocatePool (sizeof(ARM_SOFTWARE_BREAKPOINT));
-
- Breakpoint->Signature = ARM_SOFTWARE_BREAKPOINT_SIGNATURE;
- Breakpoint->Address = Address;
- Breakpoint->Instruction = *(UINT32 *)Address;
-
- // Add it to the list
- InsertTailList (&BreakpointList, &Breakpoint->Link);
-
- // Insert the software breakpoint
- *(UINT32 *)Address = GDB_ARM_BKPT;
- InvalidateInstructionCacheRange ((VOID *)Address, 4);
-
- //DEBUG((EFI_D_ERROR, "SetBreakpoint at 0x%08x (was: 0x%08x is:0x%08x)\n", Address, Breakpoint->Instruction, *(UINT32 *)Address));
-}
-
-VOID
-ClearBreakpoint (
- IN UINT32 Address
- )
-{
- ARM_SOFTWARE_BREAKPOINT *Breakpoint;
-
- Breakpoint = SearchBreakpointList (Address);
-
- if (Breakpoint == NULL) {
- return;
- }
-
- // Add it to the list
- RemoveEntryList (&Breakpoint->Link);
-
- // Restore the original instruction
- *(UINT32 *)Address = Breakpoint->Instruction;
- InvalidateInstructionCacheRange ((VOID *)Address, 4);
-
- //DEBUG((EFI_D_ERROR, "ClearBreakpoint at 0x%08x (was: 0x%08x is:0x%08x)\n", Address, GDB_ARM_BKPT, *(UINT32 *)Address));
-
- FreePool (Breakpoint);
-}
-
-VOID
-EFIAPI
-InsertBreakPoint (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- UINTN Type;
- UINTN Address;
- UINTN Length;
- UINTN ErrorCode;
-
- ErrorCode = ParseBreakpointPacket (PacketData, &Type, &Address, &Length);
- if (ErrorCode > 0) {
- SendError ((UINT8)ErrorCode);
- return;
- }
-
- switch (Type) {
- case 0: //Software breakpoint
- break;
-
- default :
- DEBUG((EFI_D_ERROR, "Insert breakpoint default: %x\n", Type));
- SendError (GDB_EINVALIDBRKPOINTTYPE);
- return;
- }
-
- SetBreakpoint (Address);
-
- SendSuccess ();
-}
-
-VOID
-EFIAPI
-RemoveBreakPoint (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- UINTN Type;
- UINTN Address;
- UINTN Length;
- UINTN ErrorCode;
-
- //Parse breakpoint packet data
- ErrorCode = ParseBreakpointPacket (PacketData, &Type, &Address, &Length);
- if (ErrorCode > 0) {
- SendError ((UINT8)ErrorCode);
- return;
- }
-
- switch (Type) {
- case 0: //Software breakpoint
- break;
-
- default:
- SendError (GDB_EINVALIDBRKPOINTTYPE);
- return;
- }
-
- ClearBreakpoint (Address);
-
- SendSuccess ();
-}
-
-VOID
-InitializeProcessor (
- VOID
- )
-{
- // Initialize breakpoint list
- InitializeListHead (&BreakpointList);
-}
-
-BOOLEAN
-ValidateAddress (
- IN VOID *Address
- )
-{
- if ((UINT32)Address < 0x80000000) {
- return FALSE;
- } else {
- return TRUE;
- }
-}
-
-BOOLEAN
-ValidateException (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- UINT32 ExceptionAddress;
- UINT32 Instruction;
-
- // Is it a debugger SWI?
- ExceptionAddress = SystemContext.SystemContextArm->PC -= 4;
- Instruction = *(UINT32 *)ExceptionAddress;
- if (Instruction != GDB_ARM_BKPT) {
- return FALSE;
- }
-
- // Special for SWI-based exception handling. SWI sets up the context
- // to return to the instruction following the SWI instruction - NOT what we want
- // for a debugger!
- SystemContext.SystemContextArm->PC = ExceptionAddress;
-
- return TRUE;
-}
-
diff --git a/EmbeddedPkg/GdbStub/GdbStub.c b/EmbeddedPkg/GdbStub/GdbStub.c deleted file mode 100644 index 213038ad08..0000000000 --- a/EmbeddedPkg/GdbStub/GdbStub.c +++ /dev/null @@ -1,1257 +0,0 @@ -/** @file
- UEFI driver that implements a GDB stub
-
- Note: Any code in the path of the Serial IO output can not call DEBUG as will
- will blow out the stack. Serial IO calls DEBUG, debug calls Serail IO, ...
-
-
- Copyright (c) 2008 - 2009, Apple Inc. 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 <GdbStubInternal.h>
-#include <Protocol/DebugPort.h>
-
-
-UINTN gMaxProcessorIndex = 0;
-
-//
-// Buffers for basic gdb communication
-//
-CHAR8 gInBuffer[MAX_BUF_SIZE];
-CHAR8 gOutBuffer[MAX_BUF_SIZE];
-
-// Assume gdb does a "qXfer:libraries:read::offset,length" when it connects so we can default
-// this value to FALSE. Since gdb can reconnect its self a global default is not good enough
-BOOLEAN gSymbolTableUpdate = FALSE;
-EFI_EVENT gEvent;
-VOID *gGdbSymbolEventHandlerRegistration = NULL;
-
-//
-// Globals for returning XML from qXfer:libraries:read packet
-//
-UINTN gPacketqXferLibraryOffset = 0;
-UINTN gEfiDebugImageTableEntry = 0;
-EFI_DEBUG_IMAGE_INFO_TABLE_HEADER *gDebugImageTableHeader = NULL;
-EFI_DEBUG_IMAGE_INFO *gDebugTable = NULL;
-CHAR8 gXferLibraryBuffer[2000];
-
-GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 mHexToStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
-
-
-VOID
-EFIAPI
-GdbSymbolEventHandler (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
-}
-
-
-/**
- The user Entry Point for Application. The user code starts with this function
- as the real entry point for the image goes into a library that calls this
- function.
-
- @param[in] ImageHandle The firmware allocated handle for the EFI image.
- @param[in] SystemTable A pointer to the EFI System Table.
-
- @retval EFI_SUCCESS The entry point is executed successfully.
- @retval other Some error occurs when executing this entry point.
-
-**/
-EFI_STATUS
-EFIAPI
-GdbStubEntry (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
- EFI_DEBUG_SUPPORT_PROTOCOL *DebugSupport;
- UINTN HandleCount;
- EFI_HANDLE *Handles;
- UINTN Index;
- UINTN Processor;
- BOOLEAN IsaSupported;
-
- Status = EfiGetSystemConfigurationTable (&gEfiDebugImageInfoTableGuid, (VOID **)&gDebugImageTableHeader);
- if (EFI_ERROR (Status)) {
- gDebugImageTableHeader = NULL;
- }
-
- Status = gBS->LocateHandleBuffer (
- ByProtocol,
- &gEfiDebugSupportProtocolGuid,
- NULL,
- &HandleCount,
- &Handles
- );
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "Debug Support Protocol not found\n"));
-
- return Status;
- }
-
- DebugSupport = NULL;
- IsaSupported = FALSE;
- do {
- HandleCount--;
- Status = gBS->HandleProtocol (
- Handles[HandleCount],
- &gEfiDebugSupportProtocolGuid,
- (VOID **) &DebugSupport
- );
- if (!EFI_ERROR (Status)) {
- if (CheckIsa (DebugSupport->Isa)) {
- // We found what we are looking for so break out of the loop
- IsaSupported = TRUE;
- break;
- }
- }
- } while (HandleCount > 0);
- FreePool (Handles);
-
- if (!IsaSupported) {
- DEBUG ((EFI_D_ERROR, "Debug Support Protocol does not support our ISA\n"));
-
- return EFI_NOT_FOUND;
- }
-
- Status = DebugSupport->GetMaximumProcessorIndex (DebugSupport, &gMaxProcessorIndex);
- ASSERT_EFI_ERROR (Status);
-
- DEBUG ((EFI_D_INFO, "Debug Support Protocol ISA %x\n", DebugSupport->Isa));
- DEBUG ((EFI_D_INFO, "Debug Support Protocol Processor Index %d\n", gMaxProcessorIndex));
-
- // Call processor-specific init routine
- InitializeProcessor ();
-
- for (Processor = 0; Processor <= gMaxProcessorIndex; Processor++) {
- for (Index = 0; Index < MaxEfiException (); Index++) {
- Status = DebugSupport->RegisterExceptionCallback (DebugSupport, Processor, GdbExceptionHandler, gExceptionType[Index].Exception);
- ASSERT_EFI_ERROR (Status);
- }
- //
- // Current edk2 DebugPort is not interrupt context safe so we can not use it
- //
- Status = DebugSupport->RegisterPeriodicCallback (DebugSupport, Processor, GdbPeriodicCallBack);
- ASSERT_EFI_ERROR (Status);
- }
-
- //
- // This even fires every time an image is added. This allows the stub to know when gdb needs
- // to update the symbol table.
- //
- Status = gBS->CreateEvent (
- EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
- GdbSymbolEventHandler,
- NULL,
- &gEvent
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Register for protocol notifications on this event
- //
- Status = gBS->RegisterProtocolNotify (
- &gEfiLoadedImageProtocolGuid,
- gEvent,
- &gGdbSymbolEventHandlerRegistration
- );
- ASSERT_EFI_ERROR (Status);
-
-
- if (PcdGetBool (PcdGdbSerial)) {
- GdbInitializeSerialConsole ();
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Transfer length bytes of input buffer, starting at Address, to memory.
-
- @param length the number of the bytes to be transferred/written
- @param *address the start address of the transferring/writing the memory
- @param *new_data the new data to be written to memory
- **/
-
-VOID
-TransferFromInBufToMem (
- IN UINTN Length,
- IN unsigned char *Address,
- IN CHAR8 *NewData
- )
-{
- CHAR8 c1;
- CHAR8 c2;
-
- while (Length-- > 0) {
- c1 = (CHAR8)HexCharToInt (*NewData++);
- c2 = (CHAR8)HexCharToInt (*NewData++);
-
- if ((c1 < 0) || (c2 < 0)) {
- Print ((CHAR16 *)L"Bad message from write to memory..\n");
- SendError (GDB_EBADMEMDATA);
- return;
- }
- *Address++ = (UINT8)((c1 << 4) + c2);
- }
-
- SendSuccess();
-}
-
-
-/**
- Transfer Length bytes of memory starting at Address to an output buffer, OutBuffer. This function will finally send the buffer
- as a packet.
-
- @param Length the number of the bytes to be transferred/read
- @param *address pointer to the start address of the transferring/reading the memory
- **/
-
-VOID
-TransferFromMemToOutBufAndSend (
- IN UINTN Length,
- IN unsigned char *Address
- )
-{
- // there are Length bytes and every byte is represented as 2 hex chars
- CHAR8 OutBuffer[MAX_BUF_SIZE];
- CHAR8 *OutBufPtr; // pointer to the output buffer
- CHAR8 Char;
-
- if (ValidateAddress(Address) == FALSE) {
- SendError(14);
- return;
- }
-
- OutBufPtr = OutBuffer;
- while (Length > 0) {
-
- Char = mHexToStr[*Address >> 4];
- if ((Char >= 'A') && (Char <= 'F')) {
- Char = Char - 'A' + 'a';
- }
- *OutBufPtr++ = Char;
-
- Char = mHexToStr[*Address & 0x0f];
- if ((Char >= 'A') && (Char <= 'F')) {
- Char = Char - 'A' + 'a';
- }
- *OutBufPtr++ = Char;
-
- Address++;
- Length--;
- }
-
- *OutBufPtr = '\0' ; // the end of the buffer
- SendPacket (OutBuffer);
-}
-
-
-
-/**
- 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.
-
- 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
-
- @param PacketData Payload data for the packet
-
-
- @retval Number of bytes of packet data sent.
-
-**/
-UINTN
-SendPacket (
- IN CHAR8 *PacketData
- )
-{
- UINT8 CheckSum;
- UINTN Timeout;
- CHAR8 *Ptr;
- CHAR8 TestChar;
- UINTN Count;
-
- Timeout = PcdGet32 (PcdGdbMaxPacketRetryCount);
-
- Count = 0;
- do {
-
- Ptr = PacketData;
-
- if (Timeout-- == 0) {
- // Only try a finite number of times so we don't get stuck in the loop
- return Count;
- }
-
- // Packet prefix
- GdbPutChar ('$');
-
- for (CheckSum = 0, Count =0 ; *Ptr != '\0'; Ptr++, Count++) {
- GdbPutChar (*Ptr);
- CheckSum = CheckSum + *Ptr;
- }
-
- // Packet terminating character and checksum
- GdbPutChar ('#');
- GdbPutChar (mHexToStr[CheckSum >> 4]);
- GdbPutChar (mHexToStr[CheckSum & 0x0F]);
-
- TestChar = GdbGetChar ();
- } while (TestChar != '+');
-
- return Count;
-}
-
-/**
- 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.
-
- If host re-starts sending a packet without ending the previous packet, only the last valid packet is proccessed.
- (In other words, if received packet is '$12345$12345$123456#checksum', only '$123456#checksum' will be processed.)
-
- If an ack '+' is not sent resend the packet
-
- @param PacketData Payload data for the packet
-
- @retval Number of bytes of packet data received.
-
-**/
-UINTN
-ReceivePacket (
- OUT CHAR8 *PacketData,
- IN UINTN PacketDataSize
- )
-{
- UINT8 CheckSum;
- UINTN Index;
- CHAR8 Char;
- CHAR8 SumString[3];
- CHAR8 TestChar;
-
- ZeroMem (PacketData, PacketDataSize);
-
- for (;;) {
- // wait for the start of a packet
- TestChar = GdbGetChar ();
- while (TestChar != '$') {
- TestChar = GdbGetChar ();
- };
-
- retry:
- for (Index = 0, CheckSum = 0; Index < (PacketDataSize - 1); Index++) {
- Char = GdbGetChar ();
- if (Char == '$') {
- goto retry;
- }
- if (Char == '#') {
- break;
- }
-
- PacketData[Index] = Char;
- CheckSum = CheckSum + Char;
- }
- PacketData[Index] = '\0';
-
- if (Index == PacketDataSize) {
- continue;
- }
-
- SumString[0] = GdbGetChar ();
- SumString[1] = GdbGetChar ();
- SumString[2] = '\0';
-
- if (AsciiStrHexToUintn (SumString) == CheckSum) {
- // Ack: Success
- GdbPutChar ('+');
-
- // Null terminate the callers string
- PacketData[Index] = '\0';
- return Index;
- } else {
- // Ack: Failure
- GdbPutChar ('-');
- }
- }
-
- //return 0;
-}
-
-
-/**
- Empties the given buffer
- @param Buf pointer to the first element in buffer to be emptied
- **/
-VOID
-EmptyBuffer (
- IN CHAR8 *Buf
- )
-{
- *Buf = '\0';
-}
-
-
-/**
- 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
- -1 if Char is not a hex character
- **/
-INTN
-HexCharToInt (
- IN CHAR8 Char
- )
-{
- if ((Char >= 'A') && (Char <= 'F')) {
- return Char - 'A' + 10;
- } else if ((Char >= 'a') && (Char <= 'f')) {
- return Char - 'a' + 10;
- } else if ((Char >= '0') && (Char <= '9')) {
- return Char - '0';
- } else { // if not a hex value, return a negative value
- return -1;
- }
-}
-
- // 'E' + the biggest error number is 255, so its 2 hex digits + buffer end
-CHAR8 *gError = "E__";
-
-/** '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.
- ex: 162 will be sent as A2.
-
- @param errno the error number that will be sent
- **/
-VOID
-EFIAPI
-SendError (
- IN UINT8 ErrorNum
- )
-{
- //
- // Replace _, or old data, with current errno
- //
- gError[1] = mHexToStr [ErrorNum >> 4];
- gError[2] = mHexToStr [ErrorNum & 0x0f];
-
- SendPacket (gError); // send buffer
-}
-
-
-
-/**
- Send 'OK' when the function is done executing successfully.
- **/
-VOID
-EFIAPI
-SendSuccess (
- VOID
- )
-{
- SendPacket ("OK"); // send buffer
-}
-
-
-/**
- Send empty packet to specify that particular command/functionality is not supported.
- **/
-VOID
-EFIAPI
-SendNotSupported (
- VOID
- )
-{
- SendPacket ("");
-}
-
-
-/**
- Send the T signal with the given exception type (in gdb order) and possibly with n:r pairs related to the watchpoints
-
- @param SystemContext Register content at time of the exception
- @param GdbExceptionType GDB exception type
- **/
-VOID
-GdbSendTSignal (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINT8 GdbExceptionType
- )
-{
- CHAR8 TSignalBuffer[128];
- CHAR8 *TSignalPtr;
- UINTN BreakpointDetected;
- BREAK_TYPE BreakType;
- UINTN DataAddress;
- CHAR8 *WatchStrPtr = NULL;
- UINTN RegSize;
-
- TSignalPtr = &TSignalBuffer[0];
-
- //Construct TSignal packet
- *TSignalPtr++ = 'T';
-
- //
- // replace _, or previous value, with Exception type
- //
- *TSignalPtr++ = mHexToStr [GdbExceptionType >> 4];
- *TSignalPtr++ = mHexToStr [GdbExceptionType & 0x0f];
-
- if (GdbExceptionType == GDB_SIGTRAP) {
- if (gSymbolTableUpdate) {
- //
- // We can only send back on reason code. So if the flag is set it means the breakpoint is from our event handler
- //
- WatchStrPtr = "library:;";
- while (*WatchStrPtr != '\0') {
- *TSignalPtr++ = *WatchStrPtr++;
- }
- gSymbolTableUpdate = FALSE;
- } else {
-
-
- //
- // possible n:r pairs
- //
-
- //Retrieve the breakpoint number
- BreakpointDetected = GetBreakpointDetected (SystemContext);
-
- //Figure out if the exception is happend due to watch, rwatch or awatch.
- BreakType = GetBreakpointType (SystemContext, BreakpointDetected);
-
- //INFO: rwatch is not supported due to the way IA32 debug registers work
- if ((BreakType == DataWrite) || (BreakType == DataRead) || (BreakType == DataReadWrite)) {
-
- //Construct n:r pair
- DataAddress = GetBreakpointDataAddress (SystemContext, BreakpointDetected);
-
- //Assign appropriate buffer to print particular watchpoint type
- if (BreakType == DataWrite) {
- WatchStrPtr = "watch";
- } else if (BreakType == DataRead) {
- WatchStrPtr = "rwatch";
- } else if (BreakType == DataReadWrite) {
- WatchStrPtr = "awatch";
- }
-
- while (*WatchStrPtr != '\0') {
- *TSignalPtr++ = *WatchStrPtr++;
- }
-
- *TSignalPtr++ = ':';
-
- //Set up series of bytes in big-endian byte order. "awatch" won't work with little-endian byte order.
- RegSize = REG_SIZE;
- while (RegSize > 0) {
- RegSize = RegSize-4;
- *TSignalPtr++ = mHexToStr[(UINT8)(DataAddress >> RegSize) & 0xf];
- }
-
- //Always end n:r pair with ';'
- *TSignalPtr++ = ';';
- }
- }
- }
-
- *TSignalPtr = '\0';
-
- SendPacket (TSignalBuffer);
-}
-
-
-/**
- Translates the EFI mapping to GDB mapping
-
- @param EFIExceptionType EFI Exception that is being processed
- @retval UINTN that corresponds to EFIExceptionType's GDB exception type number
- **/
-UINT8
-ConvertEFItoGDBtype (
- IN EFI_EXCEPTION_TYPE EFIExceptionType
- )
-{
- UINTN Index;
-
- for (Index = 0; Index < MaxEfiException () ; Index++) {
- if (gExceptionType[Index].Exception == EFIExceptionType) {
- return gExceptionType[Index].SignalNo;
- }
- }
- return GDB_SIGTRAP; // this is a GDB trap
-}
-
-
-/** "m addr,length"
- Find the Length of the area to read and the start addres. Finally, pass them to
- another function, TransferFromMemToOutBufAndSend, that will read from that memory space and
- send it as a packet.
- **/
-
-VOID
-EFIAPI
-ReadFromMemory (
- CHAR8 *PacketData
- )
-{
- UINTN Address;
- UINTN Length;
- CHAR8 AddressBuffer[MAX_ADDR_SIZE]; // the buffer that will hold the address in hex chars
- CHAR8 *AddrBufPtr; // pointer to the address buffer
- CHAR8 *InBufPtr; /// pointer to the input buffer
-
- AddrBufPtr = AddressBuffer;
- InBufPtr = &PacketData[1];
- while (*InBufPtr != ',') {
- *AddrBufPtr++ = *InBufPtr++;
- }
- *AddrBufPtr = '\0';
-
- InBufPtr++; // this skips ',' in the buffer
-
- /* Error checking */
- if (AsciiStrLen (AddressBuffer) >= MAX_ADDR_SIZE) {
- Print((CHAR16 *)L"Address is too long\n");
- SendError (GDB_EBADMEMADDRBUFSIZE);
- return;
- }
-
- // 2 = 'm' + ','
- if (AsciiStrLen (PacketData) - AsciiStrLen (AddressBuffer) - 2 >= MAX_LENGTH_SIZE) {
- Print((CHAR16 *)L"Length is too long\n");
- SendError (GDB_EBADMEMLENGTH);
- return;
- }
-
- Address = AsciiStrHexToUintn (AddressBuffer);
- Length = AsciiStrHexToUintn (InBufPtr);
-
- TransferFromMemToOutBufAndSend (Length, (unsigned char *)Address);
-}
-
-
-/** "M addr,length :XX..."
- Find the Length of the area in bytes to write and the start addres. Finally, pass them to
- another function, TransferFromInBufToMem, that will write to that memory space the info in
- the input buffer.
- **/
-VOID
-EFIAPI
-WriteToMemory (
- IN CHAR8 *PacketData
- )
-{
- UINTN Address;
- UINTN Length;
- UINTN MessageLength;
- CHAR8 AddressBuffer[MAX_ADDR_SIZE]; // the buffer that will hold the Address in hex chars
- CHAR8 LengthBuffer[MAX_LENGTH_SIZE]; // the buffer that will hold the Length in hex chars
- CHAR8 *AddrBufPtr; // pointer to the Address buffer
- CHAR8 *LengthBufPtr; // pointer to the Length buffer
- CHAR8 *InBufPtr; /// pointer to the input buffer
-
- AddrBufPtr = AddressBuffer;
- LengthBufPtr = LengthBuffer;
- InBufPtr = &PacketData[1];
-
- while (*InBufPtr != ',') {
- *AddrBufPtr++ = *InBufPtr++;
- }
- *AddrBufPtr = '\0';
-
- InBufPtr++; // this skips ',' in the buffer
-
- while (*InBufPtr != ':') {
- *LengthBufPtr++ = *InBufPtr++;
- }
- *LengthBufPtr = '\0';
-
- InBufPtr++; // this skips ':' in the buffer
-
- Address = AsciiStrHexToUintn (AddressBuffer);
- Length = AsciiStrHexToUintn (LengthBuffer);
-
- /* Error checking */
-
- //Check if Address is not too long.
- if (AsciiStrLen (AddressBuffer) >= MAX_ADDR_SIZE) {
- Print ((CHAR16 *)L"Address too long..\n");
- SendError (GDB_EBADMEMADDRBUFSIZE);
- return;
- }
-
- //Check if message length is not too long
- if (AsciiStrLen (LengthBuffer) >= MAX_LENGTH_SIZE) {
- Print ((CHAR16 *)L"Length too long..\n");
- SendError (GDB_EBADMEMLENGBUFSIZE);
- return;
- }
-
- // Check if Message is not too long/short.
- // 3 = 'M' + ',' + ':'
- MessageLength = (AsciiStrLen (PacketData) - AsciiStrLen (AddressBuffer) - AsciiStrLen (LengthBuffer) - 3);
- if (MessageLength != (2*Length)) {
- //Message too long/short. New data is not the right size.
- SendError (GDB_EBADMEMDATASIZE);
- return;
- }
- TransferFromInBufToMem (Length, (unsigned char *)Address, InBufPtr);
-}
-
-/**
- Parses breakpoint packet data and captures Breakpoint type, Address and length.
- In case of an error, function returns particular error code. Returning 0 meaning
- no error.
-
- @param PacketData Pointer to the payload data for the packet.
- @param Type Breakpoint type
- @param Address Breakpoint address
- @param Length Breakpoint length in Bytes (1 byte, 2 byte, 4 byte)
-
- @retval 1 Success
- @retval {other} Particular error code
-
-**/
-UINTN
-ParseBreakpointPacket (
- IN CHAR8 *PacketData,
- OUT UINTN *Type,
- OUT UINTN *Address,
- OUT UINTN *Length
- )
-{
- CHAR8 AddressBuffer[MAX_ADDR_SIZE];
- CHAR8 *AddressBufferPtr;
- CHAR8 *PacketDataPtr;
-
- PacketDataPtr = &PacketData[1];
- AddressBufferPtr = AddressBuffer;
-
- *Type = AsciiStrHexToUintn (PacketDataPtr);
-
- //Breakpoint/watchpoint type should be between 0 to 4
- if (*Type > 4) {
- Print ((CHAR16 *)L"Type is invalid\n");
- return 22; //EINVAL: Invalid argument.
- }
-
- //Skip ',' in the buffer.
- while (*PacketDataPtr++ != ',');
-
- //Parse Address information
- while (*PacketDataPtr != ',') {
- *AddressBufferPtr++ = *PacketDataPtr++;
- }
- *AddressBufferPtr = '\0';
-
- //Check if Address is not too long.
- if (AsciiStrLen (AddressBuffer) >= MAX_ADDR_SIZE) {
- Print ((CHAR16 *)L"Address too long..\n");
- return 40; //EMSGSIZE: Message size too long.
- }
-
- *Address = AsciiStrHexToUintn (AddressBuffer);
-
- PacketDataPtr++; //This skips , in the buffer
-
- //Parse Length information
- *Length = AsciiStrHexToUintn (PacketDataPtr);
-
- //Length should be 1, 2 or 4 bytes
- if (*Length > 4) {
- Print ((CHAR16 *)L"Length is invalid\n");
- return 22; //EINVAL: Invalid argument
- }
-
- return 0; //0 = No error
-}
-
-UINTN
-gXferObjectReadResponse (
- IN CHAR8 Type,
- IN CHAR8 *Str
- )
-{
- CHAR8 *OutBufPtr; // pointer to the output buffer
- CHAR8 Char;
- UINTN Count;
-
- // Response starts with 'm' or 'l' if it is the end
- OutBufPtr = gOutBuffer;
- *OutBufPtr++ = Type;
- Count = 1;
-
- // Binary data encoding
- OutBufPtr = gOutBuffer;
- while (*Str != '\0') {
- Char = *Str++;
- if ((Char == 0x7d) || (Char == 0x23) || (Char == 0x24) || (Char == 0x2a)) {
- // escape character
- *OutBufPtr++ = 0x7d;
-
- Char ^= 0x20;
- }
- *OutBufPtr++ = Char;
- Count++;
- }
-
- *OutBufPtr = '\0' ; // the end of the buffer
- SendPacket (gOutBuffer);
-
- return Count;
-}
-
-
-/**
- Note: This should be a library function. In the Apple case you have to add
- the size of the PE/COFF header into the starting address to make things work
- right as there is no way to pad the Mach-O for the size of the PE/COFF header.
-
-
- Returns a pointer to the PDB file name for a PE/COFF image that has been
- loaded into system memory with the PE/COFF Loader Library functions.
-
- Returns the PDB file name for the PE/COFF image specified by Pe32Data. If
- the PE/COFF image specified by Pe32Data is not a valid, then NULL is
- returned. If the PE/COFF image specified by Pe32Data does not contain a
- debug directory entry, then NULL is returned. If the debug directory entry
- in the PE/COFF image specified by Pe32Data does not contain a PDB file name,
- then NULL is returned.
- If Pe32Data is NULL, then ASSERT().
-
- @param Pe32Data Pointer to the PE/COFF image that is loaded in system
- memory.
- @param DebugBase Address that the debugger would use as the base of the image
-
- @return The PDB file name for the PE/COFF image specified by Pe32Data or NULL
- if it cannot be retrieved. DebugBase is only valid if PDB file name is
- valid.
-
-**/
-VOID *
-EFIAPI
-PeCoffLoaderGetDebuggerInfo (
- IN VOID *Pe32Data,
- OUT VOID **DebugBase
- )
-{
- EFI_IMAGE_DOS_HEADER *DosHdr;
- EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;
- EFI_IMAGE_DATA_DIRECTORY *DirectoryEntry;
- EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *DebugEntry;
- UINTN DirCount;
- VOID *CodeViewEntryPointer;
- INTN TEImageAdjust;
- UINT32 NumberOfRvaAndSizes;
- UINT16 Magic;
- UINTN SizeOfHeaders;
-
- ASSERT (Pe32Data != NULL);
-
- TEImageAdjust = 0;
- DirectoryEntry = NULL;
- DebugEntry = NULL;
- NumberOfRvaAndSizes = 0;
- SizeOfHeaders = 0;
-
- DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;
- if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {
- //
- // DOS image header is present, so read the PE header after the DOS image header.
- //
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));
- } else {
- //
- // DOS image header is not present, so PE header is at the image base.
- //
- Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;
- }
-
- if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {
- if (Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress != 0) {
- DirectoryEntry = &Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG];
- TEImageAdjust = sizeof (EFI_TE_IMAGE_HEADER) - Hdr.Te->StrippedSize;
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *)((UINTN) Hdr.Te +
- Hdr.Te->DataDirectory[EFI_TE_IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress +
- TEImageAdjust);
- }
- SizeOfHeaders = sizeof (EFI_TE_IMAGE_HEADER) + (UINTN)Hdr.Te->BaseOfCode - (UINTN)Hdr.Te->StrippedSize;
-
- // __APPLE__ check this math...
- *DebugBase = ((CHAR8 *)Pe32Data) - TEImageAdjust;
- } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {
-
- *DebugBase = Pe32Data;
-
-
- //
- // NOTE: We use Machine field to identify PE32/PE32+, instead of Magic.
- // It is due to backward-compatibility, for some system might
- // generate PE32+ image with PE32 Magic.
- //
- switch (Hdr.Pe32->FileHeader.Machine) {
- case EFI_IMAGE_MACHINE_IA32:
- //
- // Assume PE32 image with IA32 Machine field.
- //
- Magic = EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC;
- break;
- case EFI_IMAGE_MACHINE_X64:
- case EFI_IMAGE_MACHINE_IA64:
- //
- // Assume PE32+ image with X64 or IPF Machine field
- //
- Magic = EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC;
- break;
- default:
- //
- // For unknow Machine field, use Magic in optional Header
- //
- Magic = Hdr.Pe32->OptionalHeader.Magic;
- }
-
- if (Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
- //
- // Use PE32 offset get Debug Directory Entry
- //
- SizeOfHeaders = Hdr.Pe32->OptionalHeader.SizeOfHeaders;
- NumberOfRvaAndSizes = Hdr.Pe32->OptionalHeader.NumberOfRvaAndSizes;
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);
- } else if (Hdr.Pe32->OptionalHeader.Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
- //
- // Use PE32+ offset get Debug Directory Entry
- //
- SizeOfHeaders = Hdr.Pe32Plus->OptionalHeader.SizeOfHeaders;
- NumberOfRvaAndSizes = Hdr.Pe32Plus->OptionalHeader.NumberOfRvaAndSizes;
- DirectoryEntry = (EFI_IMAGE_DATA_DIRECTORY *)&(Hdr.Pe32Plus->OptionalHeader.DataDirectory[EFI_IMAGE_DIRECTORY_ENTRY_DEBUG]);
- DebugEntry = (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY *) ((UINTN) Pe32Data + DirectoryEntry->VirtualAddress);
- }
-
- if (NumberOfRvaAndSizes <= EFI_IMAGE_DIRECTORY_ENTRY_DEBUG) {
- DirectoryEntry = NULL;
- DebugEntry = NULL;
- }
- } else {
- return NULL;
- }
-
- if (DebugEntry == NULL || DirectoryEntry == NULL) {
- return NULL;
- }
-
- for (DirCount = 0; DirCount < DirectoryEntry->Size; DirCount += sizeof (EFI_IMAGE_DEBUG_DIRECTORY_ENTRY), DebugEntry++) {
- if (DebugEntry->Type == EFI_IMAGE_DEBUG_TYPE_CODEVIEW) {
- if (DebugEntry->SizeOfData > 0) {
- CodeViewEntryPointer = (VOID *) ((UINTN) DebugEntry->RVA + ((UINTN)Pe32Data) + (UINTN)TEImageAdjust);
- switch (* (UINT32 *) CodeViewEntryPointer) {
- case CODEVIEW_SIGNATURE_NB10:
- return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY));
- case CODEVIEW_SIGNATURE_RSDS:
- return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_RSDS_ENTRY));
- case CODEVIEW_SIGNATURE_MTOC:
- *DebugBase = (VOID *)(UINTN)((UINTN)DebugBase - SizeOfHeaders);
- return (VOID *) ((CHAR8 *)CodeViewEntryPointer + sizeof (EFI_IMAGE_DEBUG_CODEVIEW_MTOC_ENTRY));
- default:
- break;
- }
- }
- }
- }
-
- (void)SizeOfHeaders;
- return NULL;
-}
-
-
-/**
- Process "qXfer:object:read:annex:offset,length" request.
-
- Returns an XML document that contains loaded libraries. In our case it is
- information in the EFI Debug Image Table converted into an XML document.
-
- GDB will call with an arbitrary length (it can't know the real length and
- will reply with chunks of XML that are easy for us to deal with. Gdb will
- keep calling until we say we are done. XML doc looks like:
-
- <library-list>
- <library name="/a/a/c/d.dSYM"><segment address="0x10000000"/></library>
- <library name="/a/m/e/e.pdb"><segment address="0x20000000"/></library>
- <library name="/a/l/f/f.dll"><segment address="0x30000000"/></library>
- </library-list>
-
- Since we can not allocate memory in interrupt context this module has
- assumptions about how it will get called:
- 1) Length will generally be max remote packet size (big enough)
- 2) First Offset of an XML document read needs to be 0
- 3) This code will return back small chunks of the XML document on every read.
- Each subsequent call will ask for the next available part of the document.
-
- Note: The only variable size element in the XML is:
- " <library name=\"%s\"><segment address=\"%p\"/></library>\n" and it is
- based on the file path and name of the symbol file. If the symbol file name
- is bigger than the max gdb remote packet size we could update this code
- to respond back in chunks.
-
- @param Offset offset into special data area
- @param Length number of bytes to read starting at Offset
-
- **/
-VOID
-QxferLibrary (
- IN UINTN Offset,
- IN UINTN Length
- )
-{
- VOID *LoadAddress;
- CHAR8 *Pdb;
- UINTN Size;
-
- if (Offset != gPacketqXferLibraryOffset) {
- SendError (GDB_EINVALIDARG);
- Print (L"\nqXferLibrary (%d, %d) != %d\n", Offset, Length, gPacketqXferLibraryOffset);
-
- // Force a retry from the beginning
- gPacketqXferLibraryOffset = 0;
-
- return;
- }
-
- if (Offset == 0) {
- gPacketqXferLibraryOffset += gXferObjectReadResponse ('m', "<library-list>\n");
-
- // The owner of the table may have had to ralloc it so grab a fresh copy every time
- // we assume qXferLibrary will get called over and over again until the entire XML table is
- // returned in a tight loop. Since we are in the debugger the table should not get updated
- gDebugTable = gDebugImageTableHeader->EfiDebugImageInfoTable;
- gEfiDebugImageTableEntry = 0;
- return;
- }
-
- if (gDebugTable != NULL) {
- for (; gEfiDebugImageTableEntry < gDebugImageTableHeader->TableSize; gEfiDebugImageTableEntry++, gDebugTable++) {
- if (gDebugTable->NormalImage != NULL) {
- if ((gDebugTable->NormalImage->ImageInfoType == EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL) &&
- (gDebugTable->NormalImage->LoadedImageProtocolInstance != NULL)) {
- Pdb = PeCoffLoaderGetDebuggerInfo (
- gDebugTable->NormalImage->LoadedImageProtocolInstance->ImageBase,
- &LoadAddress
- );
- if (Pdb != NULL) {
- Size = AsciiSPrint (
- gXferLibraryBuffer,
- sizeof (gXferLibraryBuffer),
- " <library name=\"%a\"><segment address=\"0x%p\"/></library>\n",
- Pdb,
- LoadAddress
- );
- if ((Size != 0) && (Size != (sizeof (gXferLibraryBuffer) - 1))) {
- gPacketqXferLibraryOffset += gXferObjectReadResponse ('m', gXferLibraryBuffer);
-
- // Update loop variables so we are in the right place when we get back
- gEfiDebugImageTableEntry++;
- gDebugTable++;
- return;
- } else {
- // We could handle <library> entires larger than sizeof (gXferLibraryBuffer) here if
- // needed by breaking up into N packets
- // "<library name=\"%s
- // the rest of the string (as many packets as required
- // \"><segment address=\"%d\"/></library> (fixed size)
- //
- // But right now we just skip any entry that is too big
- }
- }
- }
- }
- }
- }
-
-
- gXferObjectReadResponse ('l', "</library-list>\n");
- gPacketqXferLibraryOffset = 0;
- return;
-}
-
-
-/**
- Exception Hanldler for GDB. It will be called for all exceptions
- registered via the gExceptionType[] array.
-
- @param ExceptionType Exception that is being processed
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-GdbExceptionHandler (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- UINT8 GdbExceptionType;
- CHAR8 *Ptr;
-
-
- if (ValidateException (ExceptionType, SystemContext) == FALSE) {
- return;
- }
-
- RemoveSingleStep (SystemContext);
-
- GdbExceptionType = ConvertEFItoGDBtype (ExceptionType);
- GdbSendTSignal (SystemContext, GdbExceptionType);
-
- for( ; ; ) {
- ReceivePacket (gInBuffer, MAX_BUF_SIZE);
-
- switch (gInBuffer[0]) {
- case '?':
- GdbSendTSignal (SystemContext, GdbExceptionType);
- break;
-
- case 'c':
- ContinueAtAddress (SystemContext, gInBuffer);
- return;
-
- case 'g':
- ReadGeneralRegisters (SystemContext);
- break;
-
- case 'G':
- WriteGeneralRegisters (SystemContext, gInBuffer);
- break;
-
- case 'H':
- //Return "OK" packet since we don't have more than one thread.
- SendSuccess ();
- break;
-
- case 'm':
- ReadFromMemory (gInBuffer);
- break;
-
- case 'M':
- WriteToMemory (gInBuffer);
- break;
-
- case 'P':
- WriteNthRegister (SystemContext, gInBuffer);
- break;
-
- //
- // Still debugging this code. Not used in Darwin
- //
- case 'q':
- // General Query Packets
- if (AsciiStrnCmp (gInBuffer, "qSupported", 10) == 0) {
- // return what we currently support, we don't parse what gdb suports
- AsciiSPrint (gOutBuffer, MAX_BUF_SIZE, "qXfer:libraries:read+;PacketSize=%d", MAX_BUF_SIZE);
- SendPacket (gOutBuffer);
- } else if (AsciiStrnCmp (gInBuffer, "qXfer:libraries:read::", 22) == 0) {
- // ‘qXfer:libraries:read::offset,length
- // gInBuffer[22] is offset string, ++Ptr is length string’
- for (Ptr = &gInBuffer[22]; *Ptr != ','; Ptr++);
-
- // Not sure if multi-radix support is required. Currently only support decimal
- QxferLibrary (AsciiStrHexToUintn (&gInBuffer[22]), AsciiStrHexToUintn (++Ptr));
- } if (AsciiStrnCmp (gInBuffer, "qOffsets", 10) == 0) {
- AsciiSPrint (gOutBuffer, MAX_BUF_SIZE, "Text=1000;Data=f000;Bss=f000");
- SendPacket (gOutBuffer);
- } else {
- //Send empty packet
- SendNotSupported ();
- }
- break;
-
- case 's':
- SingleStep (SystemContext, gInBuffer);
- return;
-
- case 'z':
- RemoveBreakPoint (SystemContext, gInBuffer);
- break;
-
- case 'Z':
- InsertBreakPoint (SystemContext, gInBuffer);
- break;
-
- default:
- //Send empty packet
- SendNotSupported ();
- break;
- }
- }
-}
-
-
-/**
- Periodic callback for GDB. This function is used to catch a ctrl-c or other
- break in type command from GDB.
-
- @param SystemContext Register content at time of the call
- **/
-VOID
-EFIAPI
-GdbPeriodicCallBack (
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- //
- // gCtrlCBreakFlag may have been set from a previous F response package
- // and we set the global as we need to process it at a point where we
- // can update the system context. If we are in the middle of processing
- // a F Packet it is not safe to read the GDB serial stream so we need
- // to skip it on this check
- //
- if (!gCtrlCBreakFlag && !gProcessingFPacket) {
- //
- // Ctrl-C was not pending so grab any pending characters and see if they
- // are a Ctrl-c (0x03). If so set the Ctrl-C global.
- //
- while (TRUE) {
- if (!GdbIsCharAvailable ()) {
- //
- // No characters are pending so exit the loop
- //
- break;
- }
-
- if (GdbGetChar () == 0x03) {
- gCtrlCBreakFlag = TRUE;
- //
- // We have a ctrl-c so exit the loop
- //
- break;
- }
- }
- }
-
- if (gCtrlCBreakFlag) {
- //
- // Update the context to force a single step trap when we exit the GDB
- // stub. This will transfer control to GdbExceptionHandler () and let
- // us break into the program. We don't want to break into the GDB stub.
- //
- AddSingleStep (SystemContext);
- gCtrlCBreakFlag = FALSE;
- }
-}
diff --git a/EmbeddedPkg/GdbStub/GdbStub.inf b/EmbeddedPkg/GdbStub/GdbStub.inf deleted file mode 100644 index ecb5c61b82..0000000000 --- a/EmbeddedPkg/GdbStub/GdbStub.inf +++ /dev/null @@ -1,77 +0,0 @@ -#/** @file
-# UEFI GDB stub
-#
-# This is a shell application that will display Hello World.
-# Copyright (c) 2008, Apple Inc. 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.
-#
-#
-#**/
-
-################################################################################
-#
-# Defines Section - statements that will be processed to create a Makefile.
-#
-################################################################################
-[Defines]
- INF_VERSION = 0x00010005
- BASE_NAME = GdbStub
- FILE_GUID = 1F2CCB4F-D817-404E-98E7-80E4851FB33E
- MODULE_TYPE = UEFI_DRIVER
- VERSION_STRING = 1.0
-
- ENTRY_POINT = GdbStubEntry
-
-[Sources.common]
- GdbStub.c
- SerialIo.c
-
-[Sources.ARM]
- Arm/Processor.c
-
-[Sources.IA32]
- Ia32/Processor.c
-
-[Sources.X64]
- X64/Processor.c
-
-
-[Packages]
- MdePkg/MdePkg.dec
- EmbeddedPkg/EmbeddedPkg.dec
-
-[LibraryClasses]
- BaseLib
- DebugLib
- UefiLib
- UefiDriverEntryPoint
- UefiBootServicesTableLib
- UefiRuntimeServicesTableLib
- BaseMemoryLib
- MemoryAllocationLib
- DevicePathLib
- PcdLib
- GdbSerialLib
- PrintLib
- CacheMaintenanceLib
-
-
-[Protocols]
- gEfiDebugSupportProtocolGuid
- gEfiDebugPortProtocolGuid
- gEfiSerialIoProtocolGuid
-
-[Guids]
- gEfiDebugImageInfoTableGuid
-
-[FeaturePcd.common]
- gEmbeddedTokenSpaceGuid.PcdGdbSerial
-
-[FixedPcd.common]
- gEmbeddedTokenSpaceGuid.PcdGdbMaxPacketRetryCount
diff --git a/EmbeddedPkg/GdbStub/GdbStubInternal.h b/EmbeddedPkg/GdbStub/GdbStubInternal.h deleted file mode 100644 index 521c3442e0..0000000000 --- a/EmbeddedPkg/GdbStub/GdbStubInternal.h +++ /dev/null @@ -1,746 +0,0 @@ -/** @file
- Private include file for GDB stub
-
- Copyright (c) 2008 - 2009, Apple Inc. 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.
-
-**/
-
-#ifndef __GDB_STUB_INTERNAL__
-#define __GDB_STUB_INTERNAL__
-
-#include <Uefi.h>
-#include <Library/BaseLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include <Library/DebugLib.h>
-#include <Library/UefiLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/PcdLib.h>
-#include <Library/GdbSerialLib.h>
-#include <Library/PrintLib.h>
-
-#include <Protocol/DebugSupport.h>
-#include <Protocol/SerialIo.h>
-#include <Protocol/LoadedImage.h>
-#include <Protocol/LoadedImage.h>
-#include <Guid/DebugImageInfoTable.h>
-#include <IndustryStandard/PeImage.h>
-
-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
-
-// maximum size of address buffer
-#define MAX_ADDR_SIZE 32
-
-// maximum size of register number buffer
-#define MAX_REG_NUM_BUF_SIZE 32
-
-// maximum size of length buffer
-#define MAX_LENGTH_SIZE 32
-
-// maximum size of T signal members
-#define MAX_T_SIGNAL_SIZE 64
-
-// the mask used to clear all the cache
-#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
-
-
-//
-// 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
-
-
-//
-// These devices are open by GDB so we can just read and write to them
-//
-#define GDB_STDIN 0x00
-#define GDB_STDOUT 0x01
-#define GDB_STDERR 0x02
-
-//
-//Define Register size for different architectures
-//
-#if defined (MDE_CPU_IA32)
-#define REG_SIZE 32
-#elif defined (MDE_CPU_X64)
-#define REG_SIZE 64
-#elif defined (MDE_CPU_ARM)
-#define REG_SIZE 32
-#endif
-
-#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;
-} GDB_SERIAL_DEVICE_PATH;
-
-//
-// Name: SERIAL_DEV
-// Purpose: To provide device specific information
-// Fields:
-// Signature UINTN: The identity of the serial device
-// SerialIo SERIAL_IO_PROTOCOL: Serial I/O protocol interface
-// SerialMode SERIAL_IO_MODE:
-// 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;
-} GDB_SERIAL_DEV;
-
-
-#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_ENTRY;
-
-
-#if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)
-
-//
-// Byte packed structure for DR6
-// 32-bits on IA-32
-// 64-bits on X64. The upper 32-bits on X64 are reserved
-//
-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
- } Bits;
- UINTN UintN;
-} IA32_DR6;
-
-//
-// Byte packed structure for DR7
-// 32-bits on IA-32
-// 64-bits on X64. The upper 32-bits on X64 are reserved
-//
-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
- } Bits;
- 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
- NotSupported
-} BREAK_TYPE;
-
-//
-// Array of exception types that need to be hooked by the debugger
-//
-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;
-
-//
-// 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
-//
-extern BOOLEAN gProcessingFPacket;
-
-
-// The offsets of registers SystemContext.
-// The fields in the array are in the gdb ordering.
-//
-extern UINTN gRegisterOffsets[];
-
-/**
- Return the number of entries in the gExceptionType[]
-
- @retval UINTN, the number of entries in the gExceptionType[] array.
- **/
-UINTN
-MaxEfiException (
- VOID
- );
-
-
-/**
- Return the number of entries in the gRegisters[]
-
- @retval UINTN, the number of entries (registers) in the gRegisters[] array.
- **/
-UINTN
-MaxRegisterCount (
- VOID
- );
-
-
-/**
- Check to see if the ISA is supported.
- ISA = Instruction Set Architecture
-
- @retval TRUE if Isa is supported,
- FALSE otherwise.
- **/
-BOOLEAN
-CheckIsa (
- 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
-
- @param SystemContext Register content at time of the exception
- @param GdbExceptionType GDB exception type
- **/
-
-VOID
-GdbSendTSignal (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINT8 GdbExceptionType
- );
-
-
-/**
- Translates the EFI mapping to GDB mapping
-
- @param EFIExceptionType EFI Exception that is being processed
- @retval UINTN that corresponds to EFIExceptionType's GDB exception type number
- **/
-UINT8
-ConvertEFItoGDBtype (
- IN EFI_EXCEPTION_TYPE EFIExceptionType
- );
-
-
-/**
- Empties the given buffer
- @param *Buf pointer to the first element in buffer to be emptied
- **/
-VOID
-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
- -1 if Char is not a hex character
- **/
-INTN
-HexCharToInt (
- 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.
- ex: 162 will be sent as A2.
-
- @param errno the error number that will be sent
- **/
-VOID
-EFIAPI
-SendError (
- IN UINT8 ErrorNum
- );
-
-
-/**
- Send 'OK' when the function is done executing successfully.
- **/
-VOID
-SendSuccess (
- VOID
- );
-
-
-/**
- Send empty packet to specify that particular command/functionality is not supported.
- **/
-VOID
-SendNotSupported (
- VOID
- );
-
-/** ‘p n’
- Reads the n-th register's value into an output buffer and sends it as a packet
- @param SystemContext Register content at time of the exception
- @param InBuffer This is the input buffer received from gdb server
- **/
-VOID
-ReadNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- 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
-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
-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
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-
-VOID
-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
- 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
-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
- 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
-WriteToMemory (
- IN CHAR8 *PacketData
- );
-
-
-/** ‘c [addr ]’
- Continue. addr is Address to resume. If addr is omitted, resume at current
- Address.
-
- @param SystemContext Register content at time of the exception
- @param *PacketData Pointer to PacketData
- **/
-
-VOID
-ContinueAtAddress (
- 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.
-
- @param SystemContext Register content at time of the exception
- @param PacketData Pointer to Payload data for the packet
- **/
-VOID
-SingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- );
-
-/**
- Insert Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-AddSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- );
-
-/**
- Remove Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-RemoveSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- );
-
-
-/**
- ‘Z1, [addr], [length]’
- ‘Z2, [addr], [length]’
- ‘Z3, [addr], [length]’
- ‘Z4, [addr], [length]’
-
- Insert hardware breakpoint/watchpoint at address addr of size length
-
- @param SystemContext Register content at time of the exception
- @param *PacketData Pointer to the Payload data for the packet
-
-**/
-VOID
-EFIAPI
-InsertBreakPoint(
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- );
-
-
-/**
- ‘z1, [addr], [length]’
- ‘z2, [addr], [length]’
- ‘z3, [addr], [length]’
- ‘z4, [addr], [length]’
-
- Remove hardware breakpoint/watchpoint at address addr of size length
-
- @param SystemContext Register content at time of the exception
- @param *PacketData Pointer to the Payload data for the packet
-
-**/
-VOID
-EFIAPI
-RemoveBreakPoint(
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- );
-
-
-/**
- Exception Hanldler for GDB. It will be called for all exceptions
- registered via the gExceptionType[] array.
-
- @param ExceptionType Exception that is being processed
- @param SystemContext Register content at time of the exception
-
- **/
-VOID
-EFIAPI
-GdbExceptionHandler (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- 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.
-
- @param SystemContext Register content at time of the call
-
- **/
-VOID
-EFIAPI
-GdbPeriodicCallBack (
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- );
-
-
-/**
- Make two serail consoles: 1) StdIn and StdOut via GDB. 2) StdErr via GDB.
-
- These console show up on the remote system running GDB
-
-**/
-
-VOID
-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.
-
- 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
-
- @param PacketData Payload data for the packet
-
- @retval Number of bytes of packet data sent.
-
-**/
-UINTN
-SendPacket (
- 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.
-
- If host re-starts sending a packet without ending the previous packet, only the last valid packet is proccessed.
- (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
-
- @param PacketData Payload data for the packet
-
- @retval Number of bytes of packet data received.
-
- **/
-UINTN
-ReceivePacket (
- OUT CHAR8 *PacketData,
- IN UINTN PacketDataSize
- );
-
-
-/**
- Read data from a FileDescriptor. On success number of bytes read is returned. Zero indicates
- the end of a file. On error -1 is returned. If count is zero, GdbRead returns zero.
-
- @param FileDescriptor Device to talk to.
- @param Buffer Buffer to hold Count bytes that were read
- @param Count Number of bytes to transfer.
-
- @retval -1 Error
- @retval {other} Number of bytes read.
-
-**/
-INTN
-GdbRead (
- 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.
-
- @param FileDescriptor Device to talk to.
- @param Buffer Buffer to hold Count bytes that are to be written
- @param Count Number of bytes to transfer.
-
- @retval -1 Error
- @retval {other} Number of bytes written.
-
-**/
-INTN
-GdbWrite (
- IN INTN FileDescriptor,
- OUT CONST VOID *Buffer,
- IN UINTN Count
- );
-
-UINTN *
-FindPointerToRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber
- );
-
-CHAR8 *
-BasicReadRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *OutBufPtr
- );
-
-VOID
-TransferFromInBufToMem (
- IN UINTN Length,
- IN UINT8 *Address,
- IN CHAR8 *NewData
- );
-
-VOID
-TransferFromMemToOutBufAndSend (
- IN UINTN Length,
- IN UINT8 *Address
- );
-
-CHAR8 *
-BasicWriteRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *InBufPtr
- );
-
-VOID
-PrintReg (
- EFI_SYSTEM_CONTEXT SystemContext
- );
-
-UINTN
-ParseBreakpointPacket (
- IN CHAR8 *PacketData,
- OUT UINTN *Type,
- OUT UINTN *Address,
- OUT UINTN *Length
- );
-
-UINTN
-GetBreakpointDataAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- );
-
-UINTN
-GetBreakpointDetected (
- IN EFI_SYSTEM_CONTEXT SystemContext
- );
-
-BREAK_TYPE
-GetBreakpointType (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- );
-
-UINTN
-ConvertLengthData (
- IN UINTN Length
- );
-
-EFI_STATUS
-FindNextFreeDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- OUT UINTN *Register
- );
-
-EFI_STATUS
-EnableDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Register,
- IN UINTN Address,
- IN UINTN Length,
- IN UINTN Type
- );
-
-EFI_STATUS
-FindMatchingDebugRegister (
- 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
- );
-
-VOID
-InitializeProcessor (
- VOID
- );
-
-BOOLEAN
-ValidateAddress (
- IN VOID *Address
- );
-
-BOOLEAN
-ValidateException (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- );
-
-#endif
diff --git a/EmbeddedPkg/GdbStub/Ia32/Processor.c b/EmbeddedPkg/GdbStub/Ia32/Processor.c deleted file mode 100644 index bd94b31109..0000000000 --- a/EmbeddedPkg/GdbStub/Ia32/Processor.c +++ /dev/null @@ -1,993 +0,0 @@ -/** @file
- Processor specific parts of the GDB stub
-
- Copyright (c) 2008 - 2009, Apple Inc. 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 <GdbStubInternal.h>
-
-//
-// Array of exception types that need to be hooked by the debugger
-// {EFI mapping, GDB mapping}
-//
-EFI_EXCEPTION_TYPE_ENTRY gExceptionType[] = {
- { EXCEPT_IA32_DIVIDE_ERROR, GDB_SIGFPE },
- { EXCEPT_IA32_DEBUG, GDB_SIGTRAP },
- { EXCEPT_IA32_NMI, GDB_SIGEMT },
- { EXCEPT_IA32_BREAKPOINT, GDB_SIGTRAP },
- { EXCEPT_IA32_OVERFLOW, GDB_SIGSEGV },
- { EXCEPT_IA32_BOUND, GDB_SIGSEGV },
- { EXCEPT_IA32_INVALID_OPCODE, GDB_SIGILL },
- { EXCEPT_IA32_DOUBLE_FAULT, GDB_SIGEMT },
- { EXCEPT_IA32_STACK_FAULT, GDB_SIGSEGV },
- { EXCEPT_IA32_GP_FAULT, GDB_SIGSEGV },
- { EXCEPT_IA32_PAGE_FAULT, GDB_SIGSEGV },
- { EXCEPT_IA32_FP_ERROR, GDB_SIGEMT },
- { EXCEPT_IA32_ALIGNMENT_CHECK, GDB_SIGEMT },
- { EXCEPT_IA32_MACHINE_CHECK, GDB_SIGEMT }
-};
-
-
-// The offsets of registers SystemContext.
-// The fields in the array are in the gdb ordering.
-//
-//16 regs
-UINTN gRegisterOffsets[] = {
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Eax),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Ecx),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Edx),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Ebx),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Esp),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Ebp),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Esi),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Edi),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Eip),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Eflags),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Cs),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Ss),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Ds),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Es),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Fs),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_IA32, Gs)
-};
-
-
-//Debug only..
-VOID
-PrintReg (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- Print ((CHAR16 *)L"EAX: %x ", SystemContext.SystemContextIa32->Eax);
- Print ((CHAR16 *)L"ECX: %x ", SystemContext.SystemContextIa32->Ecx);
- Print ((CHAR16 *)L"EDX: %x ", SystemContext.SystemContextIa32->Edx);
- Print ((CHAR16 *)L"EBX: %x ", SystemContext.SystemContextIa32->Ebx);
- Print ((CHAR16 *)L"ESP: %x ", SystemContext.SystemContextIa32->Esp);
- Print ((CHAR16 *)L"EBP: %x ", SystemContext.SystemContextIa32->Ebp);
- Print ((CHAR16 *)L"ESI: %x ", SystemContext.SystemContextIa32->Esi);
- Print ((CHAR16 *)L"EDI: %x ", SystemContext.SystemContextIa32->Edi);
- Print ((CHAR16 *)L"EIP: %x\n", SystemContext.SystemContextIa32->Eip);
- Print ((CHAR16 *)L"EFlags: %x\n", SystemContext.SystemContextIa32->Eflags);
-}
-
-//Debug only..
-VOID
-PrintDRreg (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- Print ((CHAR16 *)L"DR0: %x ", SystemContext.SystemContextIa32->Dr0);
- Print ((CHAR16 *)L"DR1: %x ", SystemContext.SystemContextIa32->Dr1);
- Print ((CHAR16 *)L"DR2: %x ", SystemContext.SystemContextIa32->Dr2);
- Print ((CHAR16 *)L"DR3: %x ", SystemContext.SystemContextIa32->Dr3);
- Print ((CHAR16 *)L"DR6: %x ", SystemContext.SystemContextIa32->Dr6);
- Print ((CHAR16 *)L"DR7: %x\n", SystemContext.SystemContextIa32->Dr7);
-}
-
-
-/**
- Return the number of entries in the gExceptionType[]
-
- @retval UINTN, the number of entries in the gExceptionType[] array.
- **/
-UINTN
-MaxEfiException (
- VOID
- )
-{
- return sizeof (gExceptionType)/sizeof (EFI_EXCEPTION_TYPE_ENTRY);
-}
-
-
-/**
- Return the number of entries in the gRegisters[]
-
- @retval UINTN, the number of entries (registers) in the gRegisters[] array.
- **/
-UINTN
-MaxRegisterCount (
- VOID
- )
-{
- return sizeof (gRegisterOffsets)/sizeof (UINTN);
-}
-
-
-/**
- Check to see if the ISA is supported.
- ISA = Instruction Set Architecture
-
- @retval TRUE if Isa is supported,
- FALSE otherwise.
-**/
-BOOLEAN
-CheckIsa (
- IN EFI_INSTRUCTION_SET_ARCHITECTURE Isa
- )
-{
- return (BOOLEAN)(Isa == IsaIa32);
-}
-
-
-/**
- This takes in the register number and the System Context, and returns a pointer to the RegNumber-th register in gdb ordering
- It is, by default, set to find the register pointer of the IA32 member
-
- @param SystemContext Register content at time of the exception
- @param RegNumber The register to which we want to find a pointer
- @retval the pointer to the RegNumber-th pointer
- **/
-UINTN *
-FindPointerToRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber
- )
-{
- UINT8 *TempPtr;
- TempPtr = ((UINT8 *)SystemContext.SystemContextIa32) + gRegisterOffsets[RegNumber];
- return (UINTN *)TempPtr;
-}
-
-
-/**
- Adds the RegNumber-th register's value to the output buffer, starting at the given OutBufPtr
-
- @param SystemContext Register content at time of the exception
- @param RegNumber the number of the register that we want to read
- @param OutBufPtr pointer to the output buffer's end. the new data will be added from this point on.
- @retval the pointer to the next character of the output buffer that is available to be written on.
- **/
-CHAR8 *
-BasicReadRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *OutBufPtr
- )
-{
- UINTN RegSize;
-
- RegSize = 0;
- while (RegSize < REG_SIZE) {
- *OutBufPtr++ = mHexToStr[((*FindPointerToRegister (SystemContext, RegNumber) >> (RegSize+4)) & 0xf)];
- *OutBufPtr++ = mHexToStr[((*FindPointerToRegister (SystemContext, RegNumber) >> RegSize) & 0xf)];
- RegSize = RegSize + 8;
- }
- return OutBufPtr;
-}
-
-
-/** ‘p n’
- Reads the n-th register's value into an output buffer and sends it as a packet
-
- @param SystemContext Register content at time of the exception
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-VOID
-EFIAPI
-ReadNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN RegNumber;
- CHAR8 OutBuffer[9]; // 1 reg=8 hex chars, and the end '\0' (escape seq)
- CHAR8 *OutBufPtr; // pointer to the output buffer
-
- RegNumber = AsciiStrHexToUintn (&InBuffer[1]);
-
- if ((RegNumber < 0) || (RegNumber >= MaxRegisterCount())) {
- SendError (GDB_EINVALIDREGNUM);
- return;
- }
-
- OutBufPtr = OutBuffer;
- OutBufPtr = BasicReadRegister (SystemContext, RegNumber, OutBufPtr);
-
- *OutBufPtr = '\0'; // the end of the buffer
- SendPacket(OutBuffer);
-}
-
-
-/** ‘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
- )
-{
- UINTN i;
- CHAR8 OutBuffer[129]; // 16 regs, 8 hex chars each, and the end '\0' (escape seq)
- CHAR8 *OutBufPtr; // pointer to the output buffer
-
- OutBufPtr = OutBuffer;
- for (i = 0 ; i < MaxRegisterCount() ; i++) { // there are only 16 registers to read
- OutBufPtr = BasicReadRegister (SystemContext, i, OutBufPtr);
- }
-
- *OutBufPtr = '\0'; // the end of the buffer
- SendPacket(OutBuffer);
-}
-
-
-/**
- Adds the RegNumber-th register's value to the output buffer, starting at the given OutBufPtr
-
- @param SystemContext Register content at time of the exception
- @param RegNumber the number of the register that we want to write
- @param InBufPtr pointer to the output buffer. the new data will be extracted from the input buffer from this point on.
- @retval the pointer to the next character of the input buffer that can be used
- **/
-CHAR8 *
-BasicWriteRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *InBufPtr
- )
-{
- UINTN RegSize;
- UINTN TempValue; // the value transferred from a hex char
- UINT32 NewValue; // the new value of the RegNumber-th Register
-
- NewValue = 0;
- RegSize = 0;
- while (RegSize < REG_SIZE) {
- TempValue = HexCharToInt(*InBufPtr++);
-
- if (TempValue < 0) {
- SendError (GDB_EBADMEMDATA);
- return NULL;
- }
-
- NewValue += (TempValue << (RegSize+4));
- TempValue = HexCharToInt(*InBufPtr++);
-
- if (TempValue < 0) {
- SendError (GDB_EBADMEMDATA);
- return NULL;
- }
-
- NewValue += (TempValue << RegSize);
- RegSize = RegSize + 8;
- }
- *(FindPointerToRegister (SystemContext, RegNumber)) = NewValue;
- return InBufPtr;
-}
-
-
-/** ‘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 Ponter to the input buffer received from gdb server
- **/
-VOID
-EFIAPI
-WriteNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN RegNumber;
- CHAR8 RegNumBuffer[MAX_REG_NUM_BUF_SIZE]; // put the 'n..' part of the message into this array
- CHAR8 *RegNumBufPtr;
- CHAR8 *InBufPtr; // pointer to the input buffer
-
- // find the register number to write
- InBufPtr = &InBuffer[1];
- RegNumBufPtr = RegNumBuffer;
- while (*InBufPtr != '=') {
- *RegNumBufPtr++ = *InBufPtr++;
- }
- *RegNumBufPtr = '\0';
- RegNumber = AsciiStrHexToUintn (RegNumBuffer);
-
- // check if this is a valid Register Number
- if ((RegNumber < 0) || (RegNumber >= MaxRegisterCount())) {
- SendError (GDB_EINVALIDREGNUM);
- return;
- }
- InBufPtr++; // skips the '=' character
- BasicWriteRegister (SystemContext, RegNumber, InBufPtr);
- SendSuccess();
-}
-
-
-/** ‘G XX...’
- Writes the new values received into the input buffer to the general registers
-
- @param SystemContext Register content at time of the exception
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-VOID
-EFIAPI
-WriteGeneralRegisters (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN i;
- CHAR8 *InBufPtr; /// pointer to the input buffer
-
- // check to see if the buffer is the right size which is
- // 1 (for 'G') + 16 (for 16 registers) * 8 ( for 8 hex chars each) = 129
- if (AsciiStrLen(InBuffer) != 129) { // 16 regs, 8 hex chars each, and the end '\0' (escape seq)
- //Bad message. Message is not the right length
- SendError (GDB_EBADBUFSIZE);
- return;
- }
-
- InBufPtr = &InBuffer[1];
-
- // Read the new values for the registers from the input buffer to an array, NewValueArray.
- // The values in the array are in the gdb ordering
- for (i=0; i < MaxRegisterCount(); i++) { // there are only 16 registers to write
- InBufPtr = BasicWriteRegister (SystemContext, i, InBufPtr);
- }
-
- SendSuccess();
-}
-
-
-/**
- Insert Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-AddSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- SystemContext.SystemContextIa32->Eflags |= TF_BIT; //Setting the TF bit.
-}
-
-
-/**
- Remove Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-RemoveSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- SystemContext.SystemContextIa32->Eflags &= ~TF_BIT; // clearing the TF bit.
-}
-
-
-
-/** ‘c [addr ]’
- Continue. addr is Address to resume. If addr is omitted, resume at current
- Address.
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-ContinueAtAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- if (PacketData[1] != '\0') {
- SystemContext.SystemContextIa32->Eip = AsciiStrHexToUintn (&PacketData[1]);
- }
-}
-
-
-/** ‘s [addr ]’
- Single step. addr is the Address at which to resume. If addr is omitted, resume
- at same Address.
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-SingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- if (PacketData[1] != '\0') {
- SystemContext.SystemContextIa32->Eip = AsciiStrHexToUintn (&PacketData[1]);
- }
-
- AddSingleStep (SystemContext);
-}
-
-
-/**
- Returns breakpoint data address from DR0-DR3 based on the input breakpoint number
-
- @param SystemContext Register content at time of the exception
- @param BreakpointNumber Breakpoint number
-
- @retval Address Data address from DR0-DR3 based on the breakpoint number.
-
-**/
-UINTN
-GetBreakpointDataAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- )
-{
- UINTN Address;
-
- if (BreakpointNumber == 1) {
- Address = SystemContext.SystemContextIa32->Dr0;
- } else if (BreakpointNumber == 2) {
- Address = SystemContext.SystemContextIa32->Dr1;
- } else if (BreakpointNumber == 3) {
- Address = SystemContext.SystemContextIa32->Dr2;
- } else if (BreakpointNumber == 4) {
- Address = SystemContext.SystemContextIa32->Dr3;
- } else {
- Address = 0;
- }
-
- return Address;
-}
-
-
-/**
- Returns currently detected breakpoint value based on the register DR6 B0-B3 field.
- If no breakpoint is detected then it returns 0.
-
- @param SystemContext Register content at time of the exception
-
- @retval {1-4} Currently detected breakpoint value
- @retval 0 No breakpoint detected.
-
-**/
-UINTN
-GetBreakpointDetected (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- IA32_DR6 Dr6;
- UINTN BreakpointNumber;
-
- Dr6.UintN = SystemContext.SystemContextIa32->Dr6;
-
- if (Dr6.Bits.B0 == 1) {
- BreakpointNumber = 1;
- } else if (Dr6.Bits.B1 == 1) {
- BreakpointNumber = 2;
- } else if (Dr6.Bits.B2 == 1) {
- BreakpointNumber = 3;
- } else if (Dr6.Bits.B3 == 1) {
- BreakpointNumber = 4;
- } else {
- BreakpointNumber = 0; //No breakpoint detected
- }
-
- return BreakpointNumber;
-}
-
-
-/**
- Returns Breakpoint type (InstructionExecution, DataWrite, DataRead or DataReadWrite)
- based on the Breakpoint number
-
- @param SystemContext Register content at time of the exception
- @param BreakpointNumber Breakpoint number
-
- @retval BREAK_TYPE Breakpoint type value read from register DR7 RWn field
- For unknown value, it returns NotSupported.
-
-**/
-BREAK_TYPE
-GetBreakpointType (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- )
-{
- IA32_DR7 Dr7;
- BREAK_TYPE Type = NotSupported; //Default is NotSupported type
-
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (BreakpointNumber == 1) {
- Type = (BREAK_TYPE) Dr7.Bits.RW0;
- } else if (BreakpointNumber == 2) {
- Type = (BREAK_TYPE) Dr7.Bits.RW1;
- } else if (BreakpointNumber == 3) {
- Type = (BREAK_TYPE) Dr7.Bits.RW2;
- } else if (BreakpointNumber == 4) {
- Type = (BREAK_TYPE) Dr7.Bits.RW3;
- }
-
- return Type;
-}
-
-
-/**
- Parses Length and returns the length which DR7 LENn field accepts.
- For example: If we receive 1-Byte length then we should return 0.
- Zero gets written to DR7 LENn field.
-
- @param Length Breakpoint length in Bytes (1 byte, 2 byte, 4 byte)
-
- @retval Length Appropriate converted values which DR7 LENn field accepts.
-
-**/
-UINTN
-ConvertLengthData (
- IN UINTN Length
- )
-{
- if (Length == 1) { //1-Byte length
- return 0;
- } else if (Length == 2) { //2-Byte length
- return 1;
- } else if (Length == 4) { //4-Byte length
- return 3;
- } else { //Undefined or 8-byte length
- return 2;
- }
-}
-
-
-/**
- Finds the next free debug register. If all the registers are occupied then
- EFI_OUT_OF_RESOURCES is returned.
-
- @param SystemContext Register content at time of the exception
- @param Register Register value (0 - 3 for the first free debug register)
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-FindNextFreeDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- OUT UINTN *Register
- )
-{
- IA32_DR7 Dr7;
-
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (Dr7.Bits.G0 == 0) {
- *Register = 0;
- } else if (Dr7.Bits.G1 == 0) {
- *Register = 1;
- } else if (Dr7.Bits.G2 == 0) {
- *Register = 2;
- } else if (Dr7.Bits.G3 == 0) {
- *Register = 3;
- } else {
- return EFI_OUT_OF_RESOURCES;
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Enables the debug register. Writes Address value to appropriate DR0-3 register.
- Sets LENn, Gn, RWn bits in DR7 register.
-
- @param SystemContext Register content at time of the exception
- @param Register Register value (0 - 3)
- @param Address Breakpoint address value
- @param Type Breakpoint type (Instruction, Data write, Data read
- or write etc.)
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-EnableDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Register,
- IN UINTN Address,
- IN UINTN Length,
- IN UINTN Type
- )
-{
- IA32_DR7 Dr7;
-
- //Convert length data
- Length = ConvertLengthData (Length);
-
- //For Instruction execution, length should be 0
- //(Ref. Intel reference manual 18.2.4)
- if ((Type == 0) && (Length != 0)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //Hardware doesn't support ReadWatch (z3 packet) type. GDB can handle
- //software breakpoint. We should send empty packet in both these cases.
- if ((Type == (BREAK_TYPE)DataRead) ||
- (Type == (BREAK_TYPE)SoftwareBreakpoint)) {
- return EFI_UNSUPPORTED;
- }
-
- //Read DR7 so appropriate Gn, RWn and LENn bits can be modified.
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (Register == 0) {
- SystemContext.SystemContextIa32->Dr0 = Address;
- Dr7.Bits.G0 = 1;
- Dr7.Bits.RW0 = Type;
- Dr7.Bits.LEN0 = Length;
- } else if (Register == 1) {
- SystemContext.SystemContextIa32->Dr1 = Address;
- Dr7.Bits.G1 = 1;
- Dr7.Bits.RW1 = Type;
- Dr7.Bits.LEN1 = Length;
- } else if (Register == 2) {
- SystemContext.SystemContextIa32->Dr2 = Address;
- Dr7.Bits.G2 = 1;
- Dr7.Bits.RW2 = Type;
- Dr7.Bits.LEN2 = Length;
- } else if (Register == 3) {
- SystemContext.SystemContextIa32->Dr3 = Address;
- Dr7.Bits.G3 = 1;
- Dr7.Bits.RW3 = Type;
- Dr7.Bits.LEN3 = Length;
- } else {
- return EFI_INVALID_PARAMETER;
- }
-
- //Update Dr7 with appropriate Gn, RWn and LENn bits
- SystemContext.SystemContextIa32->Dr7 = Dr7.UintN;
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Returns register number 0 - 3 for the maching debug register.
- This function compares incoming Address, Type, Length and
- if there is a match then it returns the appropriate register number.
- In case of mismatch, function returns EFI_NOT_FOUND message.
-
- @param SystemContext Register content at time of the exception
- @param Address Breakpoint address value
- @param Length Breakpoint length value
- @param Type Breakpoint type (Instruction, Data write,
- Data read or write etc.)
- @param Register Register value to be returned
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-FindMatchingDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Address,
- IN UINTN Length,
- IN UINTN Type,
- OUT UINTN *Register
- )
-{
- IA32_DR7 Dr7;
-
- //Hardware doesn't support ReadWatch (z3 packet) type. GDB can handle
- //software breakpoint. We should send empty packet in both these cases.
- if ((Type == (BREAK_TYPE)DataRead) ||
- (Type == (BREAK_TYPE)SoftwareBreakpoint)) {
- return EFI_UNSUPPORTED;
- }
-
- //Convert length data
- Length = ConvertLengthData(Length);
-
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if ((Dr7.Bits.G0 == 1) &&
- (Dr7.Bits.LEN0 == Length) &&
- (Dr7.Bits.RW0 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr0)) {
- *Register = 0;
- } else if ((Dr7.Bits.G1 == 1) &&
- (Dr7.Bits.LEN1 == Length) &&
- (Dr7.Bits.RW1 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr1)) {
- *Register = 1;
- } else if ((Dr7.Bits.G2 == 1) &&
- (Dr7.Bits.LEN2 == Length) &&
- (Dr7.Bits.RW2 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr2)) {
- *Register = 2;
- } else if ((Dr7.Bits.G3 == 1) &&
- (Dr7.Bits.LEN3 == Length) &&
- (Dr7.Bits.RW3 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr3)) {
- *Register = 3;
- } else {
- Print ((CHAR16 *)L"No match found..\n");
- return EFI_NOT_FOUND;
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Disables the particular debug register.
-
- @param SystemContext Register content at time of the exception
- @param Register Register to be disabled
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-DisableDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Register
- )
-{
- IA32_DR7 Dr7;
- UINTN Address = 0;
-
- //Read DR7 register so appropriate Gn, RWn and LENn bits can be turned off.
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (Register == 0) {
- SystemContext.SystemContextIa32->Dr0 = Address;
- Dr7.Bits.G0 = 0;
- Dr7.Bits.RW0 = 0;
- Dr7.Bits.LEN0 = 0;
- } else if (Register == 1) {
- SystemContext.SystemContextIa32->Dr1 = Address;
- Dr7.Bits.G1 = 0;
- Dr7.Bits.RW1 = 0;
- Dr7.Bits.LEN1 = 0;
- } else if (Register == 2) {
- SystemContext.SystemContextIa32->Dr2 = Address;
- Dr7.Bits.G2 = 0;
- Dr7.Bits.RW2 = 0;
- Dr7.Bits.LEN2 = 0;
- } else if (Register == 3) {
- SystemContext.SystemContextIa32->Dr3 = Address;
- Dr7.Bits.G3 = 0;
- Dr7.Bits.RW3 = 0;
- Dr7.Bits.LEN3 = 0;
- } else {
- return EFI_INVALID_PARAMETER;
- }
-
- //Update DR7 register so appropriate Gn, RWn and LENn bits can be turned off.
- SystemContext.SystemContextIa32->Dr7 = Dr7.UintN;
-
- return EFI_SUCCESS;
-}
-
-
-/**
- ‘Z1, [addr], [length]’
- ‘Z2, [addr], [length]’
- ‘Z3, [addr], [length]’
- ‘Z4, [addr], [length]’
-
- Insert hardware breakpoint/watchpoint at address addr of size length
-
- @param SystemContext Register content at time of the exception
- @param *PacketData Pointer to the Payload data for the packet
-
-**/
-VOID
-EFIAPI
-InsertBreakPoint (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- UINTN Type;
- UINTN Address;
- UINTN Length;
- UINTN Register;
- EFI_STATUS Status;
- BREAK_TYPE BreakType = NotSupported;
- UINTN ErrorCode;
-
- ErrorCode = ParseBreakpointPacket (PacketData, &Type, &Address, &Length);
- if (ErrorCode > 0) {
- SendError ((UINT8)ErrorCode);
- return;
- }
-
- switch (Type) {
-
- case 0: //Software breakpoint
- BreakType = SoftwareBreakpoint;
- break;
-
- case 1: //Hardware breakpoint
- BreakType = InstructionExecution;
- break;
-
- case 2: //Write watchpoint
- BreakType = DataWrite;
- break;
-
- case 3: //Read watchpoint
- BreakType = DataRead;
- break;
-
- case 4: //Access watchpoint
- BreakType = DataReadWrite;
- break;
-
- default :
- Print ((CHAR16 *)L"Insert breakpoint default: %x\n", Type);
- SendError (GDB_EINVALIDBRKPOINTTYPE);
- return;
- }
-
- // Find next free debug register
- Status = FindNextFreeDebugRegister (SystemContext, &Register);
- if (EFI_ERROR(Status)) {
- Print ((CHAR16 *)L"No space left on device\n");
- SendError (GDB_ENOSPACE);
- return;
- }
-
- // Write Address, length data at particular DR register
- Status = EnableDebugRegister (SystemContext, Register, Address, Length, (UINTN)BreakType);
- if (EFI_ERROR(Status)) {
-
- if (Status == EFI_UNSUPPORTED) {
- Print ((CHAR16 *)L"Not supported\n");
- SendNotSupported ();
- return;
- }
-
- Print ((CHAR16 *)L"Invalid argument\n");
- SendError (GDB_EINVALIDARG);
- return;
- }
-
- SendSuccess ();
-}
-
-
-/**
- ‘z1, [addr], [length]’
- ‘z2, [addr], [length]’
- ‘z3, [addr], [length]’
- ‘z4, [addr], [length]’
-
- Remove hardware breakpoint/watchpoint at address addr of size length
-
- @param *PacketData Pointer to the Payload data for the packet
-
-**/
-VOID
-EFIAPI
-RemoveBreakPoint (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- UINTN Type;
- UINTN Address;
- UINTN Length;
- UINTN Register;
- BREAK_TYPE BreakType = NotSupported;
- EFI_STATUS Status;
- UINTN ErrorCode;
-
- //Parse breakpoint packet data
- ErrorCode = ParseBreakpointPacket (PacketData, &Type, &Address, &Length);
- if (ErrorCode > 0) {
- SendError ((UINT8)ErrorCode);
- return;
- }
-
- switch (Type) {
-
- case 0: //Software breakpoint
- BreakType = SoftwareBreakpoint;
- break;
-
- case 1: //Hardware breakpoint
- BreakType = InstructionExecution;
- break;
-
- case 2: //Write watchpoint
- BreakType = DataWrite;
- break;
-
- case 3: //Read watchpoint
- BreakType = DataRead;
- break;
-
- case 4: //Access watchpoint
- BreakType = DataReadWrite;
- break;
-
- default :
- SendError (GDB_EINVALIDBRKPOINTTYPE);
- return;
- }
-
- //Find matching debug register
- Status = FindMatchingDebugRegister (SystemContext, Address, Length, (UINTN)BreakType, &Register);
- if (EFI_ERROR(Status)) {
-
- if (Status == EFI_UNSUPPORTED) {
- Print ((CHAR16 *)L"Not supported.\n");
- SendNotSupported ();
- return;
- }
-
- Print ((CHAR16 *)L"No matching register found.\n");
- SendError (GDB_ENOSPACE);
- return;
- }
-
- //Remove breakpoint
- Status = DisableDebugRegister (SystemContext, Register);
- if (EFI_ERROR(Status)) {
- Print ((CHAR16 *)L"Invalid argument.\n");
- SendError (GDB_EINVALIDARG);
- return;
- }
-
- SendSuccess ();
-}
-
-
-VOID
-InitializeProcessor (
- VOID
- )
-{
-}
-
-BOOLEAN
-ValidateAddress (
- IN VOID *Address
- )
-{
- return TRUE;
-}
-
-BOOLEAN
-ValidateException (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- return TRUE;
-}
-
diff --git a/EmbeddedPkg/GdbStub/SerialIo.c b/EmbeddedPkg/GdbStub/SerialIo.c deleted file mode 100644 index 32ceaf1233..0000000000 --- a/EmbeddedPkg/GdbStub/SerialIo.c +++ /dev/null @@ -1,553 +0,0 @@ -/** @file
- Serial IO Abstraction for GDB stub. This allows an EFI consoles that shows up on the system
- running GDB. One consle for error information and another console for user input/output.
-
- Basic packet format is $packet-data#checksum. So every comand has 4 bytes of overhead: $,
- #, 0, 0. The 0 and 0 are the ascii characters for the checksum.
-
-
- Copyright (c) 2008 - 2009, Apple Inc. 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 <GdbStubInternal.h>
-
-//
-// 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.
-//
-BOOLEAN gCtrlCBreakFlag = FALSE;
-
-//
-// 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
-//
-BOOLEAN gProcessingFPacket = FALSE;
-
-/**
- Process a control-C break message.
-
- Currently a place holder, remove the ASSERT when it gets implemented.
-
- @param ErrNo Error infomration from the F reply packet or other source
-
-**/
-
-VOID
-GdbCtrlCBreakMessage (
- IN UINTN ErrNo
- )
-{
- // See D.10.5 of gdb.pdf
- // This should look like a break message. Should look like SIGINT
-
- /* TODO: Make sure if we should do anything with ErrNo */
- //Turn on the global Ctrl-C flag.
- gCtrlCBreakFlag = TRUE;
-}
-
-
-/**
- Parse the F reply packet and extract the return value and an ErrNo if it exists.
-
- @param Packet Packet to parse like an F reply packet
- @param ErrNo Buffer to hold Count bytes that were read
-
- @retval -1 Error, not a valid F reply packet
- @retval other Return the return code from the F reply packet
-
-**/
-INTN
-GdbParseFReplyPacket (
- IN CHAR8 *Packet,
- OUT UINTN *ErrNo
- )
-{
- INTN RetCode;
-
- if (Packet[0] != 'F') {
- // A valid responce would be an F packet
- return -1;
- }
-
- RetCode = AsciiStrHexToUintn (&Packet[1]);
-
- // Find 1st comma
- for (;*Packet != '\0' && *Packet != ','; Packet++);
- if (*Packet == '\0') {
- *ErrNo = 0;
- return RetCode;
- }
-
- *ErrNo = AsciiStrHexToUintn (++Packet);
-
- // Find 2nd comma
- for (;*Packet != '\0' && *Packet != ','; Packet++);
- if (*Packet == '\0') {
- return RetCode;
- }
-
- if (*(++Packet) == 'C') {
- GdbCtrlCBreakMessage (*ErrNo);
- }
-
- return RetCode;
-}
-
-
-/**
- Read data from a FileDescriptor. On success number of bytes read is returned. Zero indicates
- the end of a file. On error -1 is returned. If count is zero, GdbRead returns zero.
-
- @param FileDescriptor Device to talk to.
- @param Buffer Buffer to hold Count bytes that were read
- @param Count Number of bytes to transfer.
-
- @retval -1 Error
- @retval {other} Number of bytes read.
-
-**/
-INTN
-GdbRead (
- IN INTN FileDescriptor,
- OUT VOID *Buffer,
- IN UINTN Count
- )
-{
- CHAR8 Packet[128];
- UINTN Size;
- INTN RetCode;
- UINTN ErrNo;
- BOOLEAN ReceiveDone = FALSE;
-
- // Send:
- // "Fread,XX,YYYYYYYY,XX
- //
- // XX - FileDescriptor in ASCII
- // YYYYYYYY - Buffer address in ASCII
- // XX - Count in ASCII
- // SS - check sum
- //
- Size = AsciiSPrint (Packet, sizeof (Packet), "Fread,%x,%x,%x", FileDescriptor, Buffer, Count);
- // Packet array is too small if you got this ASSERT
- ASSERT (Size < sizeof (Packet));
-
- gProcessingFPacket = TRUE;
- SendPacket (Packet);
- Print ((CHAR16 *)L"Packet sent..\n");
-
- do {
- // Reply:
- ReceivePacket (Packet, sizeof (Packet));
- Print ((CHAR16 *)L"Command received..%c\n", Packet[0]);
-
- // Process GDB commands
- switch (Packet[0]) {
- //Write memory command.
- //M addr,length:XX...
- case 'M':
- WriteToMemory (Packet);
- break;
-
- //Fretcode, errno, Ctrl-C flag
- //retcode - Count read
- case 'F':
- //Once target receives F reply packet that means the previous
- //transactions are finished.
- ReceiveDone = TRUE;
- break;
-
- //Send empty buffer
- default :
- SendNotSupported();
- break;
- }
- } while (ReceiveDone == FALSE);
-
- RetCode = GdbParseFReplyPacket (Packet, &ErrNo);
- Print ((CHAR16 *)L"RetCode: %x..ErrNo: %x..\n", RetCode, ErrNo);
-
- if (ErrNo > 0) {
- //Send error to the host if there is any.
- SendError ((UINT8)ErrNo);
- }
-
- gProcessingFPacket = FALSE;
-
- return RetCode;
-}
-
-
-/**
- Write data to a FileDescriptor. On success number of bytes written is returned. Zero indicates
- nothing was written. On error -1 is returned.
-
- @param FileDescriptor Device to talk to.
- @param Buffer Buffer to hold Count bytes that are to be written
- @param Count Number of bytes to transfer.
-
- @retval -1 Error
- @retval {other} Number of bytes written.
-
-**/
-INTN
-GdbWrite (
- IN INTN FileDescriptor,
- OUT CONST VOID *Buffer,
- IN UINTN Count
- )
-{
- CHAR8 Packet[128];
- UINTN Size;
- INTN RetCode;
- UINTN ErrNo;
- BOOLEAN ReceiveDone = FALSE;
-
- // Send:
- // #Fwrite,XX,YYYYYYYY,XX$SS
- //
- // XX - FileDescriptor in ASCII
- // YYYYYYYY - Buffer address in ASCII
- // XX - Count in ASCII
- // SS - check sum
- //
- Size = AsciiSPrint (Packet, sizeof (Packet), "Fwrite,%x,%x,%x", FileDescriptor, Buffer, Count);
- // Packet array is too small if you got this ASSERT
- ASSERT (Size < sizeof (Packet));
-
- SendPacket (Packet);
- Print ((CHAR16 *)L"Packet sent..\n");
-
- do {
- // Reply:
- ReceivePacket (Packet, sizeof (Packet));
- Print ((CHAR16 *)L"Command received..%c\n", Packet[0]);
-
- // Process GDB commands
- switch (Packet[0]) {
- //Read memory command.
- //m addr,length.
- case 'm':
- ReadFromMemory (Packet);
- break;
-
- //Fretcode, errno, Ctrl-C flag
- //retcode - Count read
- case 'F':
- //Once target receives F reply packet that means the previous
- //transactions are finished.
- ReceiveDone = TRUE;
- break;
-
- //Send empty buffer
- default :
- SendNotSupported();
- break;
- }
- } while (ReceiveDone == FALSE);
-
- RetCode = GdbParseFReplyPacket (Packet, &ErrNo);
- Print ((CHAR16 *)L"RetCode: %x..ErrNo: %x..\n", RetCode, ErrNo);
-
- //Send error to the host if there is any.
- if (ErrNo > 0) {
- SendError((UINT8)ErrNo);
- }
-
- return RetCode;
-}
-
-
-/**
- Reset the serial device.
-
- @param This Protocol instance pointer.
-
- @retval EFI_SUCCESS The device was reset.
- @retval EFI_DEVICE_ERROR The serial device could not be reset.
-
-**/
-EFI_STATUS
-EFIAPI
-GdbSerialReset (
- IN EFI_SERIAL_IO_PROTOCOL *This
- )
-{
- return EFI_SUCCESS;
-}
-
-
-/**
- Sets the baud rate, receive FIFO depth, transmit/receice time out, parity,
- data buts, and stop bits on a serial device.
-
- @param This Protocol instance pointer.
- @param BaudRate The requested baud rate. A BaudRate value of 0 will use the the
- device's default interface speed.
- @param ReveiveFifoDepth The requested depth of the FIFO on the receive side of the
- serial interface. A ReceiveFifoDepth value of 0 will use
- the device's dfault FIFO depth.
- @param Timeout The requested time out for a single character in microseconds.
- This timeout applies to both the transmit and receive side of the
- interface. A Timeout value of 0 will use the device's default time
- out value.
- @param Parity The type of parity to use on this serial device. A Parity value of
- DefaultParity will use the device's default parity value.
- @param DataBits The number of data bits to use on the serial device. A DataBits
- vaule of 0 will use the device's default data bit setting.
- @param StopBits The number of stop bits to use on this serial device. A StopBits
- value of DefaultStopBits will use the device's default number of
- stop bits.
-
- @retval EFI_SUCCESS The device was reset.
- @retval EFI_DEVICE_ERROR The serial device could not be reset.
-
-**/
-EFI_STATUS
-EFIAPI
-GdbSerialSetAttributes (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT64 BaudRate,
- IN UINT32 ReceiveFifoDepth,
- IN UINT32 Timeout,
- IN EFI_PARITY_TYPE Parity,
- IN UINT8 DataBits,
- IN EFI_STOP_BITS_TYPE StopBits
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-
-/**
- Set the control bits on a serial device
-
- @param This Protocol instance pointer.
- @param Control Set the bits of Control that are settable.
-
- @retval EFI_SUCCESS The new control bits were set on the serial device.
- @retval EFI_UNSUPPORTED The serial device does not support this operation.
- @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
-
-**/
-EFI_STATUS
-EFIAPI
-GdbSerialSetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN UINT32 Control
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-
-/**
- Retrieves the status of thecontrol bits on a serial device
-
- @param This Protocol instance pointer.
- @param Control A pointer to return the current Control signals from the serial device.
-
- @retval EFI_SUCCESS The control bits were read from the serial device.
- @retval EFI_DEVICE_ERROR The serial device is not functioning correctly.
-
-**/
-EFI_STATUS
-EFIAPI
-GdbSerialGetControl (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- OUT UINT32 *Control
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-
-/**
- Writes data to a serial device.
-
- @param This Protocol instance pointer.
- @param BufferSize On input, the size of the Buffer. On output, the amount of
- data actually written.
- @param Buffer The buffer of data to write
-
- @retval EFI_SUCCESS The data was written.
- @retval EFI_DEVICE_ERROR The device reported an error.
- @retval EFI_TIMEOUT The data write was stopped due to a timeout.
-
-**/
-EFI_STATUS
-EFIAPI
-GdbSerialWrite (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- IN VOID *Buffer
- )
-{
- GDB_SERIAL_DEV *SerialDev;
- UINTN Return;
-
- SerialDev = GDB_SERIAL_DEV_FROM_THIS (This);
-
- Return = GdbWrite (SerialDev->OutFileDescriptor, Buffer, *BufferSize);
- if (Return == (UINTN)-1) {
- return EFI_DEVICE_ERROR;
- }
-
- if (Return != *BufferSize) {
- *BufferSize = Return;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Writes data to a serial device.
-
- @param This Protocol instance pointer.
- @param BufferSize On input, the size of the Buffer. On output, the amount of
- data returned in Buffer.
- @param Buffer The buffer to return the data into.
-
- @retval EFI_SUCCESS The data was read.
- @retval EFI_DEVICE_ERROR The device reported an error.
- @retval EFI_TIMEOUT The data write was stopped due to a timeout.
-
-**/
-
-EFI_STATUS
-EFIAPI
-GdbSerialRead (
- IN EFI_SERIAL_IO_PROTOCOL *This,
- IN OUT UINTN *BufferSize,
- OUT VOID *Buffer
- )
-{
- GDB_SERIAL_DEV *SerialDev;
- UINTN Return;
-
- SerialDev = GDB_SERIAL_DEV_FROM_THIS (This);
-
- Return = GdbRead (SerialDev->InFileDescriptor, Buffer, *BufferSize);
- if (Return == (UINTN)-1) {
- return EFI_DEVICE_ERROR;
- }
-
- if (Return != *BufferSize) {
- *BufferSize = Return;
- }
-
- return EFI_SUCCESS;
-}
-
-
-//
-// Template used to initailize the GDB Serial IO protocols
-//
-GDB_SERIAL_DEV gdbSerialDevTemplate = {
- GDB_SERIAL_DEV_SIGNATURE,
- NULL,
-
- { // SerialIo
- SERIAL_IO_INTERFACE_REVISION,
- GdbSerialReset,
- GdbSerialSetAttributes,
- GdbSerialSetControl,
- GdbSerialGetControl,
- GdbSerialWrite,
- GdbSerialRead,
- NULL
- },
- { // SerialMode
- 0, // ControlMask
- 0, // Timeout
- 0, // BaudRate
- 1, // RceiveFifoDepth
- 0, // DataBits
- 0, // Parity
- 0 // StopBits
- },
- {
- {
- {
- HARDWARE_DEVICE_PATH,
- HW_VENDOR_DP,
- {
- (UINT8) (sizeof (VENDOR_DEVICE_PATH) + sizeof (UINT32)),
- (UINT8) ((sizeof (VENDOR_DEVICE_PATH) + sizeof (UINT32)) >> 8)
- },
- },
- EFI_SERIAL_IO_PROTOCOL_GUID
- },
- 0,
- {
- END_DEVICE_PATH_TYPE,
- END_ENTIRE_DEVICE_PATH_SUBTYPE,
- {
- (UINT8) (sizeof (EFI_DEVICE_PATH_PROTOCOL)),
- (UINT8) (sizeof (EFI_DEVICE_PATH_PROTOCOL) >> 8)
- }
- },
- },
- GDB_STDIN,
- GDB_STDOUT
-};
-
-
-/**
- Make two serial consoles: 1) StdIn and StdOut via GDB. 2) StdErr via GDB.
-
- These console show up on the remote system running GDB
-
-**/
-VOID
-GdbInitializeSerialConsole (
- VOID
- )
-{
- EFI_STATUS Status;
- GDB_SERIAL_DEV *StdOutSerialDev;
- GDB_SERIAL_DEV *StdErrSerialDev;
-
- // Use the template to make a copy of the Serial Console private data structure.
- StdOutSerialDev = AllocateCopyPool (sizeof (GDB_SERIAL_DEV), &gdbSerialDevTemplate);
- ASSERT (StdOutSerialDev != NULL);
-
- // Fixup pointer after the copy
- StdOutSerialDev->SerialIo.Mode = &StdOutSerialDev->SerialMode;
-
- StdErrSerialDev = AllocateCopyPool (sizeof (GDB_SERIAL_DEV), &gdbSerialDevTemplate);
- ASSERT (StdErrSerialDev != NULL);
-
- // Fixup pointer and modify stuff that is different for StdError
- StdErrSerialDev->SerialIo.Mode = &StdErrSerialDev->SerialMode;
- StdErrSerialDev->DevicePath.Index = 1;
- StdErrSerialDev->OutFileDescriptor = GDB_STDERR;
-
- // Make a new handle with Serial IO protocol and its device path on it.
- Status = gBS->InstallMultipleProtocolInterfaces (
- &StdOutSerialDev->Handle,
- &gEfiSerialIoProtocolGuid, &StdOutSerialDev->SerialIo,
- &gEfiDevicePathProtocolGuid, &StdOutSerialDev->DevicePath,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- // Make a new handle with Serial IO protocol and its device path on it.
- Status = gBS->InstallMultipleProtocolInterfaces (
- &StdErrSerialDev->Handle,
- &gEfiSerialIoProtocolGuid, &StdErrSerialDev->SerialIo,
- &gEfiDevicePathProtocolGuid, &StdErrSerialDev->DevicePath,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-}
-
diff --git a/EmbeddedPkg/GdbStub/X64/Processor.c b/EmbeddedPkg/GdbStub/X64/Processor.c deleted file mode 100644 index cbe50d78ec..0000000000 --- a/EmbeddedPkg/GdbStub/X64/Processor.c +++ /dev/null @@ -1,963 +0,0 @@ -/** @file
- Processor specific parts of the GDB stub
-
- Copyright (c) 2008 - 2009, Apple Inc. 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 <GdbStubInternal.h>
-
-//
-// Array of exception types that need to be hooked by the debugger
-//
-EFI_EXCEPTION_TYPE_ENTRY gExceptionType[] = {
- { EXCEPT_X64_DIVIDE_ERROR, GDB_SIGFPE },
- { EXCEPT_X64_DEBUG, GDB_SIGTRAP },
- { EXCEPT_X64_NMI, GDB_SIGEMT },
- { EXCEPT_X64_BREAKPOINT, GDB_SIGTRAP },
- { EXCEPT_X64_OVERFLOW, GDB_SIGSEGV },
- { EXCEPT_X64_BOUND, GDB_SIGSEGV },
- { EXCEPT_X64_INVALID_OPCODE, GDB_SIGILL },
- { EXCEPT_X64_DOUBLE_FAULT, GDB_SIGEMT },
- { EXCEPT_X64_STACK_FAULT, GDB_SIGSEGV },
- { EXCEPT_X64_GP_FAULT, GDB_SIGSEGV },
- { EXCEPT_X64_PAGE_FAULT, GDB_SIGSEGV },
- { EXCEPT_X64_FP_ERROR, GDB_SIGEMT },
- { EXCEPT_X64_ALIGNMENT_CHECK, GDB_SIGEMT },
- { EXCEPT_X64_MACHINE_CHECK, GDB_SIGEMT }
-};
-
-
-// The offsets of registers SystemContextX64.
-// The fields in the array are in the gdb ordering.
-// HAVE TO DOUBLE-CHECK THE ORDER of the 24 regs
-//
-UINTN gRegisterOffsets[] = {
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rax),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rcx),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rdx),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rbx),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rsp),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rbp),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rsi),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rdi),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rip),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Rflags),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Cs),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Ss),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Ds),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Es),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Fs),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, Gs),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R8),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R9),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R10),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R11),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R12),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R13),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R14),
- OFFSET_OF(EFI_SYSTEM_CONTEXT_X64, R15)
-};
-
-
-/**
- Return the number of entries in the gExceptionType[]
-
- @retval UINTN, the number of entries in the gExceptionType[] array.
- **/
-UINTN
-MaxEfiException (
- VOID
- )
-{
- return sizeof (gExceptionType)/sizeof (EFI_EXCEPTION_TYPE_ENTRY);
-}
-
-
-/**
- Return the number of entries in the gRegisters[]
-
- @retval UINTN, the number of entries (registers) in the gRegisters[] array.
- **/
-UINTN
-MaxRegisterCount (
- VOID
- )
-{
- return sizeof (gRegisterOffsets)/sizeof (UINTN);
-}
-
-
-/**
- Check to see if the ISA is supported.
- ISA = Instruction Set Architecture
-
- @retval TRUE if Isa is supported
-**/
-BOOLEAN
-CheckIsa (
- IN EFI_INSTRUCTION_SET_ARCHITECTURE Isa
- )
-{
- return (BOOLEAN)(Isa == IsaX64);
-}
-
-
-/**
- This takes in the register number and the System Context, and returns a pointer to the RegNumber-th register in gdb ordering
- It is, by default, set to find the register pointer of the X64 member
- @param SystemContext Register content at time of the exception
- @param RegNumber The register to which we want to find a pointer
- @retval the pointer to the RegNumber-th pointer
- **/
-UINTN *
-FindPointerToRegister(
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber
- )
-{
- UINT8 *TempPtr;
- TempPtr = ((UINT8 *)SystemContext.SystemContextX64) + gRegisterOffsets[RegNumber];
- return (UINTN *)TempPtr;
-}
-
-
-/**
- Adds the RegNumber-th register's value to the output buffer, starting at the given OutBufPtr
- @param SystemContext Register content at time of the exception
- @param RegNumber the number of the register that we want to read
- @param OutBufPtr pointer to the output buffer's end. the new data will be added from this point on.
- @retval the pointer to the next character of the output buffer that is available to be written on.
- **/
-CHAR8 *
-BasicReadRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *OutBufPtr
- )
-{
- UINTN RegSize;
-
- RegSize = 0;
- while (RegSize < 64) {
- *OutBufPtr++ = mHexToStr[((*FindPointerToRegister(SystemContext, RegNumber) >> (RegSize+4)) & 0xf)];
- *OutBufPtr++ = mHexToStr[((*FindPointerToRegister(SystemContext, RegNumber) >> RegSize) & 0xf)];
- RegSize = RegSize + 8;
- }
- return OutBufPtr;
-}
-
-
-/** ‘p n’
- Reads the n-th register's value into an output buffer and sends it as a packet
- @param SystemContext Register content at time of the exception
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-VOID
-ReadNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN RegNumber;
- CHAR8 OutBuffer[17]; // 1 reg=16 hex chars, and the end '\0' (escape seq)
- CHAR8 *OutBufPtr; // pointer to the output buffer
-
- RegNumber = AsciiStrHexToUintn (&InBuffer[1]);
-
- if ((RegNumber < 0) || (RegNumber >= MaxRegisterCount())) {
- SendError (GDB_EINVALIDREGNUM);
- return;
- }
-
- OutBufPtr = OutBuffer;
- OutBufPtr = BasicReadRegister(SystemContext, RegNumber, OutBufPtr);
-
- *OutBufPtr = '\0'; // the end of the buffer
- SendPacket (OutBuffer);
-}
-
-
-/** ‘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
- )
-{
- UINTN i;
- CHAR8 OutBuffer[385]; // 24 regs, 16 hex chars each, and the end '\0' (escape seq)
- CHAR8 *OutBufPtr; // pointer to the output buffer
-
- OutBufPtr = OutBuffer;
- for(i = 0 ; i < MaxRegisterCount() ; i++) { // there are only 24 registers to read
- OutBufPtr = BasicReadRegister(SystemContext, i, OutBufPtr);
- }
-
- *OutBufPtr = '\0'; // the end of the buffer
- SendPacket (OutBuffer);
-}
-
-
-/**
- Adds the RegNumber-th register's value to the output buffer, starting at the given OutBufPtr
-
- @param SystemContext Register content at time of the exception
- @param RegNumber the number of the register that we want to write
- @param InBufPtr pointer to the output buffer. the new data will be extracted from the input buffer from this point on.
- @retval the pointer to the next character of the input buffer that can be used
- **/
-CHAR8 *
-BasicWriteRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN RegNumber,
- IN CHAR8 *InBufPtr
- )
-{
- UINTN RegSize;
- UINTN TempValue; // the value transferred from a hex char
- UINT64 NewValue; // the new value of the RegNumber-th Register
-
- NewValue = 0;
- RegSize = 0;
- while (RegSize < 64) {
- TempValue = HexCharToInt(*InBufPtr++);
-
- if (TempValue < 0) {
- SendError (GDB_EBADMEMDATA);
- return NULL;
- }
-
- NewValue += (TempValue << (RegSize+4));
- TempValue = HexCharToInt(*InBufPtr++);
-
- if (TempValue < 0) {
- SendError (GDB_EBADMEMDATA);
- return NULL;
- }
-
- NewValue += (TempValue << RegSize);
- RegSize = RegSize + 8;
- }
- *(FindPointerToRegister(SystemContext, RegNumber)) = NewValue;
- return InBufPtr;
-}
-
-
-/** ‘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 Ponter to the input buffer received from gdb server
- **/
-VOID
-EFIAPI
-WriteNthRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN RegNumber;
- CHAR8 RegNumBuffer[MAX_REG_NUM_BUF_SIZE]; // put the 'n..' part of the message into this array
- CHAR8 *RegNumBufPtr;
- CHAR8 *InBufPtr; // pointer to the input buffer
-
- // find the register number to write
- InBufPtr = &InBuffer[1];
- RegNumBufPtr = RegNumBuffer;
- while (*InBufPtr != '=') {
- *RegNumBufPtr++ = *InBufPtr++;
- }
- *RegNumBufPtr = '\0';
- RegNumber = AsciiStrHexToUintn (RegNumBuffer);
-
- // check if this is a valid Register Number
- if ((RegNumber < 0) || (RegNumber >= MaxRegisterCount())) {
- SendError (GDB_EINVALIDREGNUM);
- return;
- }
- InBufPtr++; // skips the '=' character
- BasicWriteRegister (SystemContext, RegNumber, InBufPtr);
- SendSuccess();
-}
-
-
-/** ‘G XX...’
- Writes the new values received into the input buffer to the general registers
-
- @param SystemContext Register content at time of the exception
- @param InBuffer Pointer to the input buffer received from gdb server
- **/
-VOID
-EFIAPI
-WriteGeneralRegisters (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *InBuffer
- )
-{
- UINTN i;
- CHAR8 *InBufPtr; /// pointer to the input buffer
-
- // check to see if the buffer is the right size which is
- // 1 (for 'G') + 16 (for 16 registers) * 8 ( for 8 hex chars each) = 385
- if (AsciiStrLen(InBuffer) != 385) { // 24 regs, 16 hex chars each, and the end '\0' (escape seq)
- //Bad message. Message is not the right length
- SendError (GDB_EBADBUFSIZE);
- return;
- }
-
- InBufPtr = &InBuffer[1];
-
- // Read the new values for the registers from the input buffer to an array, NewValueArray.
- // The values in the array are in the gdb ordering
- for(i=0; i < MaxRegisterCount(); i++) { // there are only 16 registers to write
- InBufPtr = BasicWriteRegister(SystemContext, i, InBufPtr);
- }
-
- SendSuccess();
-}
-
-
- /**
- Insert Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-AddSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- SystemContext.SystemContextX64->Rflags |= TF_BIT; //Setting the TF bit.
-}
-
-
-
-/**
- Remove Single Step in the SystemContext
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-RemoveSingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- SystemContext.SystemContextX64->Rflags &= ~TF_BIT; // clearing the TF bit.
-}
-
-
-
-/** ‘c [addr ]’
- Continue. addr is Address to resume. If addr is omitted, resume at current
- Address.
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-ContinueAtAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- if (PacketData[1] != '\0') {
- SystemContext.SystemContextX64->Rip = AsciiStrHexToUintn(&PacketData[1]);
- }
-}
-
-
-/** ‘s [addr ]’
- Single step. addr is the Address at which to resume. If addr is omitted, resume
- at same Address.
-
- @param SystemContext Register content at time of the exception
- **/
-VOID
-EFIAPI
-SingleStep (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- if (PacketData[1] != '\0') {
- SystemContext.SystemContextX64->Rip = AsciiStrHexToUintn (&PacketData[1]);
- }
-
- AddSingleStep (SystemContext);
-}
-
-
-/**
- Returns breakpoint data address from DR0-DR3 based on the input breakpoint
- number
-
- @param SystemContext Register content at time of the exception
- @param BreakpointNumber Breakpoint number
-
- @retval Address Data address from DR0-DR3 based on the
- breakpoint number.
-
-**/
-UINTN
-GetBreakpointDataAddress (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- )
-{
- UINTN Address;
-
- if (BreakpointNumber == 1) {
- Address = SystemContext.SystemContextIa32->Dr0;
- } else if (BreakpointNumber == 2) {
- Address = SystemContext.SystemContextIa32->Dr1;
- } else if (BreakpointNumber == 3) {
- Address = SystemContext.SystemContextIa32->Dr2;
- } else if (BreakpointNumber == 4) {
- Address = SystemContext.SystemContextIa32->Dr3;
- } else {
- Address = 0;
- }
-
- return Address;
-}
-
-/**
- Returns currently detected breakpoint value based on the register
- DR6 B0-B3 field.
- If no breakpoint is detected then it returns 0.
-
- @param SystemContext Register content at time of the exception
-
- @retval {1-4} Currently detected breakpoint value
- @retval 0 No breakpoint detected.
-
-**/
-UINTN
-GetBreakpointDetected (
- IN EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- IA32_DR6 Dr6;
- UINTN BreakpointNumber;
-
- Dr6.UintN = SystemContext.SystemContextIa32->Dr6;
-
- if (Dr6.Bits.B0 == 1) {
- BreakpointNumber = 1;
- } else if (Dr6.Bits.B1 == 1) {
- BreakpointNumber = 2;
- } else if (Dr6.Bits.B2 == 1) {
- BreakpointNumber = 3;
- } else if (Dr6.Bits.B3 == 1) {
- BreakpointNumber = 4;
- } else {
- BreakpointNumber = 0; //No breakpoint detected
- }
-
- return BreakpointNumber;
-}
-
-/**
- Returns Breakpoint type (InstructionExecution, DataWrite, DataRead
- or DataReadWrite) based on the Breakpoint number
-
- @param SystemContext Register content at time of the exception
- @param BreakpointNumber Breakpoint number
-
- @retval BREAK_TYPE Breakpoint type value read from register DR7 RWn
- field. For unknown value, it returns NotSupported.
-
-**/
-BREAK_TYPE
-GetBreakpointType (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN BreakpointNumber
- )
-{
- IA32_DR7 Dr7;
- BREAK_TYPE Type = NotSupported; //Default is NotSupported type
-
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (BreakpointNumber == 1) {
- Type = (BREAK_TYPE) Dr7.Bits.RW0;
- } else if (BreakpointNumber == 2) {
- Type = (BREAK_TYPE) Dr7.Bits.RW1;
- } else if (BreakpointNumber == 3) {
- Type = (BREAK_TYPE) Dr7.Bits.RW2;
- } else if (BreakpointNumber == 4) {
- Type = (BREAK_TYPE) Dr7.Bits.RW3;
- }
-
- return Type;
-}
-
-
-/**
- Parses Length and returns the length which DR7 LENn field accepts.
- For example: If we receive 1-Byte length then we should return 0.
- Zero gets written to DR7 LENn field.
-
- @param Length Breakpoint length in Bytes (1 byte, 2 byte, 4 byte)
-
- @retval Length Appropriate converted values which DR7 LENn field accepts.
-
-**/
-UINTN
-ConvertLengthData (
- IN UINTN Length
- )
-{
- if (Length == 1) { //1-Byte length
- return 0;
- } else if (Length == 2) { //2-Byte length
- return 1;
- } else if (Length == 4) { //4-Byte length
- return 3;
- } else { //Undefined or 8-byte length
- return 2;
- }
-}
-
-
-/**
- Finds the next free debug register. If all the registers are occupied then
- EFI_OUT_OF_RESOURCES is returned.
-
- @param SystemContext Register content at time of the exception
- @param Register Register value (0 - 3 for the first free debug register)
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-FindNextFreeDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- OUT UINTN *Register
- )
-{
- IA32_DR7 Dr7;
-
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (Dr7.Bits.G0 == 0) {
- *Register = 0;
- } else if (Dr7.Bits.G1 == 0) {
- *Register = 1;
- } else if (Dr7.Bits.G2 == 0) {
- *Register = 2;
- } else if (Dr7.Bits.G3 == 0) {
- *Register = 3;
- } else {
- return EFI_OUT_OF_RESOURCES;
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Enables the debug register. Writes Address value to appropriate DR0-3 register.
- Sets LENn, Gn, RWn bits in DR7 register.
-
- @param SystemContext Register content at time of the exception
- @param Register Register value (0 - 3)
- @param Address Breakpoint address value
- @param Type Breakpoint type (Instruction, Data write,
- Data read or write etc.)
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-EnableDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Register,
- IN UINTN Address,
- IN UINTN Length,
- IN UINTN Type
- )
-{
- IA32_DR7 Dr7;
-
- //Convert length data
- Length = ConvertLengthData (Length);
-
- //For Instruction execution, length should be 0
- //(Ref. Intel reference manual 18.2.4)
- if ((Type == 0) && (Length != 0)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //Hardware doesn't support ReadWatch (z3 packet) type. GDB can handle
- //software breakpoint. We should send empty packet in both these cases.
- if ((Type == (BREAK_TYPE)DataRead) ||
- (Type == (BREAK_TYPE)SoftwareBreakpoint)) {
- return EFI_UNSUPPORTED;
- }
-
- //Read DR7 so appropriate Gn, RWn and LENn bits can be modified.
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (Register == 0) {
- SystemContext.SystemContextIa32->Dr0 = Address;
- Dr7.Bits.G0 = 1;
- Dr7.Bits.RW0 = Type;
- Dr7.Bits.LEN0 = Length;
- } else if (Register == 1) {
- SystemContext.SystemContextIa32->Dr1 = Address;
- Dr7.Bits.G1 = 1;
- Dr7.Bits.RW1 = Type;
- Dr7.Bits.LEN1 = Length;
- } else if (Register == 2) {
- SystemContext.SystemContextIa32->Dr2 = Address;
- Dr7.Bits.G2 = 1;
- Dr7.Bits.RW2 = Type;
- Dr7.Bits.LEN2 = Length;
- } else if (Register == 3) {
- SystemContext.SystemContextIa32->Dr3 = Address;
- Dr7.Bits.G3 = 1;
- Dr7.Bits.RW3 = Type;
- Dr7.Bits.LEN3 = Length;
- } else {
- return EFI_INVALID_PARAMETER;
- }
-
- //Update Dr7 with appropriate Gn, RWn and LENn bits
- SystemContext.SystemContextIa32->Dr7 = Dr7.UintN;
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Returns register number 0 - 3 for the maching debug register.
- This function compares incoming Address, Type, Length and
- if there is a match then it returns the appropriate register number.
- In case of mismatch, function returns EFI_NOT_FOUND message.
-
- @param SystemContext Register content at time of the exception
- @param Address Breakpoint address value
- @param Length Breakpoint length value
- @param Type Breakpoint type (Instruction, Data write, Data read
- or write etc.)
- @param Register Register value to be returned
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-FindMatchingDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Address,
- IN UINTN Length,
- IN UINTN Type,
- OUT UINTN *Register
- )
-{
- IA32_DR7 Dr7;
-
- //Hardware doesn't support ReadWatch (z3 packet) type. GDB can handle
- //software breakpoint. We should send empty packet in both these cases.
- if ((Type == (BREAK_TYPE)DataRead) ||
- (Type == (BREAK_TYPE)SoftwareBreakpoint)) {
- return EFI_UNSUPPORTED;
- }
-
- //Convert length data
- Length = ConvertLengthData(Length);
-
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if ((Dr7.Bits.G0 == 1) &&
- (Dr7.Bits.LEN0 == Length) &&
- (Dr7.Bits.RW0 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr0)) {
- *Register = 0;
- } else if ((Dr7.Bits.G1 == 1) &&
- (Dr7.Bits.LEN1 == Length) &&
- (Dr7.Bits.RW1 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr1)) {
- *Register = 1;
- } else if ((Dr7.Bits.G2 == 1) &&
- (Dr7.Bits.LEN2 == Length) &&
- (Dr7.Bits.RW2 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr2)) {
- *Register = 2;
- } else if ((Dr7.Bits.G3 == 1) &&
- (Dr7.Bits.LEN3 == Length) &&
- (Dr7.Bits.RW3 == Type) &&
- (Address == SystemContext.SystemContextIa32->Dr3)) {
- *Register = 3;
- } else {
- Print ((CHAR16 *)L"No match found..\n");
- return EFI_NOT_FOUND;
- }
-
- return EFI_SUCCESS;
-}
-
-
-/**
- Disables the particular debug register.
-
- @param SystemContext Register content at time of the exception
- @param Register Register to be disabled
-
- @retval EFI_STATUS Appropriate status value.
-
-**/
-EFI_STATUS
-DisableDebugRegister (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN UINTN Register
- )
-{
- IA32_DR7 Dr7;
- UINTN Address = 0;
-
- //Read DR7 register so appropriate Gn, RWn and LENn bits can be turned off.
- Dr7.UintN = SystemContext.SystemContextIa32->Dr7;
-
- if (Register == 0) {
- SystemContext.SystemContextIa32->Dr0 = Address;
- Dr7.Bits.G0 = 0;
- Dr7.Bits.RW0 = 0;
- Dr7.Bits.LEN0 = 0;
- } else if (Register == 1) {
- SystemContext.SystemContextIa32->Dr1 = Address;
- Dr7.Bits.G1 = 0;
- Dr7.Bits.RW1 = 0;
- Dr7.Bits.LEN1 = 0;
- } else if (Register == 2) {
- SystemContext.SystemContextIa32->Dr2 = Address;
- Dr7.Bits.G2 = 0;
- Dr7.Bits.RW2 = 0;
- Dr7.Bits.LEN2 = 0;
- } else if (Register == 3) {
- SystemContext.SystemContextIa32->Dr3 = Address;
- Dr7.Bits.G3 = 0;
- Dr7.Bits.RW3 = 0;
- Dr7.Bits.LEN3 = 0;
- } else {
- return EFI_INVALID_PARAMETER;
- }
-
- //Update DR7 register so appropriate Gn, RWn and LENn bits can be turned off.
- SystemContext.SystemContextIa32->Dr7 = Dr7.UintN;
-
- return EFI_SUCCESS;
-}
-
-/**
- ‘Z1, [addr], [length]’
- ‘Z2, [addr], [length]’
- ‘Z3, [addr], [length]’
- ‘Z4, [addr], [length]’
-
- Insert hardware breakpoint/watchpoint at address addr of size length
-
- @param SystemContext Register content at time of the exception
- @param *PacketData Pointer to the Payload data for the packet
-
-**/
-VOID
-EFIAPI
-InsertBreakPoint (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- UINTN Type;
- UINTN Address;
- UINTN Length;
- UINTN Register;
- EFI_STATUS Status;
- BREAK_TYPE BreakType = NotSupported;
- UINTN ErrorCode;
-
- ErrorCode = ParseBreakpointPacket (PacketData, &Type, &Address, &Length);
- if (ErrorCode > 0) {
- SendError ((UINT8)ErrorCode);
- return;
- }
-
- switch (Type) {
-
- case 0: //Software breakpoint
- BreakType = SoftwareBreakpoint;
- break;
-
- case 1: //Hardware breakpoint
- BreakType = InstructionExecution;
- break;
-
- case 2: //Write watchpoint
- BreakType = DataWrite;
- break;
-
- case 3: //Read watchpoint
- BreakType = DataRead;
- break;
-
- case 4: //Access watchpoint
- BreakType = DataReadWrite;
- break;
-
- default :
- Print ((CHAR16 *)L"Insert breakpoint default: %x\n", Type);
- SendError (GDB_EINVALIDBRKPOINTTYPE);
- return;
- }
-
- // Find next free debug register
- Status = FindNextFreeDebugRegister (SystemContext, &Register);
- if (EFI_ERROR(Status)) {
- Print ((CHAR16 *)L"No space left on device\n");
- SendError (GDB_ENOSPACE);
- return;
- }
-
- // Write Address, length data at particular DR register
- Status = EnableDebugRegister (SystemContext, Register, Address, Length, (UINTN)BreakType);
- if (EFI_ERROR(Status)) {
-
- if (Status == EFI_UNSUPPORTED) {
- Print ((CHAR16 *)L"Not supported\n");
- SendNotSupported();
- return;
- }
-
- Print ((CHAR16 *)L"Invalid argument\n");
- SendError (GDB_EINVALIDARG);
- return;
- }
-
- SendSuccess ();
-}
-
-
-/**
- ‘z1, [addr], [length]’
- ‘z2, [addr], [length]’
- ‘z3, [addr], [length]’
- ‘z4, [addr], [length]’
-
- Remove hardware breakpoint/watchpoint at address addr of size length
-
- @param *PacketData Pointer to the Payload data for the packet
-
-**/
-VOID
-EFIAPI
-RemoveBreakPoint (
- IN EFI_SYSTEM_CONTEXT SystemContext,
- IN CHAR8 *PacketData
- )
-{
- UINTN Type;
- UINTN Address;
- UINTN Length;
- UINTN Register;
- BREAK_TYPE BreakType = NotSupported;
- EFI_STATUS Status;
- UINTN ErrorCode;
-
- //Parse breakpoint packet data
- ErrorCode = ParseBreakpointPacket (PacketData, &Type, &Address, &Length);
- if (ErrorCode > 0) {
- SendError ((UINT8)ErrorCode);
- return;
- }
-
- switch (Type) {
-
- case 0: //Software breakpoint
- BreakType = SoftwareBreakpoint;
- break;
-
- case 1: //Hardware breakpoint
- BreakType = InstructionExecution;
- break;
-
- case 2: //Write watchpoint
- BreakType = DataWrite;
- break;
-
- case 3: //Read watchpoint
- BreakType = DataRead;
- break;
-
- case 4: //Access watchpoint
- BreakType = DataReadWrite;
- break;
-
- default :
- SendError (GDB_EINVALIDBRKPOINTTYPE);
- return;
- }
-
- //Find matching debug register
- Status = FindMatchingDebugRegister (SystemContext, Address, Length, (UINTN)BreakType, &Register);
- if (EFI_ERROR(Status)) {
-
- if (Status == EFI_UNSUPPORTED) {
- Print ((CHAR16 *)L"Not supported.\n");
- SendNotSupported();
- return;
- }
-
- Print ((CHAR16 *)L"No matching register found.\n");
- SendError (GDB_ENOSPACE);
- return;
- }
-
- //Remove breakpoint
- Status = DisableDebugRegister(SystemContext, Register);
- if (EFI_ERROR(Status)) {
- Print ((CHAR16 *)L"Invalid argument.\n");
- SendError (GDB_EINVALIDARG);
- return;
- }
-
- SendSuccess ();
-}
-
-
-VOID
-InitializeProcessor (
- VOID
- )
-{
-}
-
-BOOLEAN
-ValidateAddress (
- IN VOID *Address
- )
-{
- return TRUE;
-}
-
-BOOLEAN
-ValidateException (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN OUT EFI_SYSTEM_CONTEXT SystemContext
- )
-{
- return TRUE;
-}
-
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