MdeModulePkg/EbcDxe: add EBC Debugger
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Pete Batard <pete@akeo.ie> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Pete Batard
Jiewen Yao
614
MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c
Normal file
614
MdeModulePkg/Universal/EbcDxe/EbcDebugger/EdbCmdBreakpoint.c
Normal file
@@ -0,0 +1,614 @@
|
||||
/*++
|
||||
|
||||
Copyright (c) 2007, Intel Corporation
|
||||
All rights reserved. This program and the accompanying materials
|
||||
are licensed and made available under the terms and conditions of the BSD License
|
||||
which accompanies this distribution. The full text of the license may be found at
|
||||
http://opensource.org/licenses/bsd-license.php
|
||||
|
||||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||
|
||||
Module Name:
|
||||
|
||||
EdbCmdBreakpoint.c
|
||||
|
||||
Abstract:
|
||||
|
||||
|
||||
--*/
|
||||
|
||||
#include "Edb.h"
|
||||
|
||||
BOOLEAN
|
||||
IsEBCBREAK3 (
|
||||
IN UINTN Address
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Check whether current IP is EBC BREAK3 instruction
|
||||
|
||||
Arguments:
|
||||
|
||||
Address - EBC IP address.
|
||||
|
||||
Returns:
|
||||
|
||||
TRUE - Current IP is EBC BREAK3 instruction
|
||||
FALSE - Current IP is not EBC BREAK3 instruction
|
||||
|
||||
--*/
|
||||
{
|
||||
if (GET_OPCODE(Address) != OPCODE_BREAK) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (GET_OPERANDS (Address) != 3) {
|
||||
return FALSE;
|
||||
} else {
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
BOOLEAN
|
||||
DebuggerBreakpointIsDuplicated (
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN UINTN Address
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Check whether the Address is already set in breakpoint
|
||||
|
||||
Arguments:
|
||||
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
Address - Breakpoint Address
|
||||
|
||||
Returns:
|
||||
|
||||
TRUE - breakpoint is found
|
||||
FALSE - breakpoint is not found
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN Index;
|
||||
|
||||
//
|
||||
// Go through each breakpoint context
|
||||
//
|
||||
for (Index = 0; Index < DebuggerPrivate->DebuggerBreakpointCount; Index++) {
|
||||
if (DebuggerPrivate->DebuggerBreakpointContext[Index].BreakpointAddress == Address) {
|
||||
//
|
||||
// Found it
|
||||
//
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Not found
|
||||
//
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
DebuggerBreakpointAdd (
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN UINTN Address
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Add this breakpoint
|
||||
|
||||
Arguments:
|
||||
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
Address - Breakpoint Address
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - breakpoint added successfully
|
||||
EFI_ALREADY_STARTED - breakpoint is already added
|
||||
EFI_OUT_OF_RESOURCES - all the breakpoint entries are used
|
||||
|
||||
--*/
|
||||
{
|
||||
//
|
||||
// Check duplicated breakpoint
|
||||
//
|
||||
if (DebuggerBreakpointIsDuplicated (DebuggerPrivate, Address)) {
|
||||
EDBPrint (L"Breakpoint duplicated!\n");
|
||||
return EFI_ALREADY_STARTED;
|
||||
}
|
||||
|
||||
//
|
||||
// Check whether the address is a breakpoint 3 instruction
|
||||
//
|
||||
if (IsEBCBREAK3 (Address)) {
|
||||
EDBPrint (L"Breakpoint can not be set on BREAK 3 instruction!\n");
|
||||
return EFI_ALREADY_STARTED;
|
||||
}
|
||||
|
||||
if (DebuggerPrivate->DebuggerBreakpointCount >= EFI_DEBUGGER_BREAKPOINT_MAX) {
|
||||
EDBPrint (L"Breakpoint out of resource!\n");
|
||||
return EFI_OUT_OF_RESOURCES;
|
||||
}
|
||||
|
||||
//
|
||||
// Set the breakpoint
|
||||
//
|
||||
DebuggerPrivate->DebuggerBreakpointContext[DebuggerPrivate->DebuggerBreakpointCount].BreakpointAddress = Address;
|
||||
DebuggerPrivate->DebuggerBreakpointContext[DebuggerPrivate->DebuggerBreakpointCount].State = TRUE;
|
||||
DebuggerPrivate->DebuggerBreakpointContext[DebuggerPrivate->DebuggerBreakpointCount].OldInstruction = 0;
|
||||
CopyMem (
|
||||
&DebuggerPrivate->DebuggerBreakpointContext[DebuggerPrivate->DebuggerBreakpointCount].OldInstruction,
|
||||
(VOID *)Address,
|
||||
sizeof(UINT16)
|
||||
);
|
||||
|
||||
DebuggerPrivate->DebuggerBreakpointCount ++;
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
DebuggerBreakpointDel (
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN UINTN Index
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Delete this breakpoint
|
||||
|
||||
Arguments:
|
||||
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
Index - Breakpoint Index
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - breakpoint deleted successfully
|
||||
EFI_NOT_FOUND - breakpoint not found
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN BpIndex;
|
||||
|
||||
if ((Index >= EFI_DEBUGGER_BREAKPOINT_MAX) ||
|
||||
(Index >= DebuggerPrivate->DebuggerBreakpointCount)) {
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
//
|
||||
// Delete this breakpoint
|
||||
//
|
||||
for (BpIndex = Index; BpIndex < DebuggerPrivate->DebuggerBreakpointCount - 1; BpIndex++) {
|
||||
DebuggerPrivate->DebuggerBreakpointContext[BpIndex] = DebuggerPrivate->DebuggerBreakpointContext[BpIndex + 1];
|
||||
}
|
||||
ZeroMem (
|
||||
&DebuggerPrivate->DebuggerBreakpointContext[BpIndex],
|
||||
sizeof(DebuggerPrivate->DebuggerBreakpointContext[BpIndex])
|
||||
);
|
||||
|
||||
DebuggerPrivate->DebuggerBreakpointCount --;
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
DebuggerBreakpointDis (
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN UINTN Index
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Disable this breakpoint
|
||||
|
||||
Arguments:
|
||||
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
Index - Breakpoint Index
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - breakpoint disabled successfully
|
||||
EFI_NOT_FOUND - breakpoint not found
|
||||
|
||||
--*/
|
||||
{
|
||||
if ((Index >= EFI_DEBUGGER_BREAKPOINT_MAX) ||
|
||||
(Index >= DebuggerPrivate->DebuggerBreakpointCount)) {
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
//
|
||||
// Disable this breakpoint
|
||||
//
|
||||
DebuggerPrivate->DebuggerBreakpointContext[Index].State = FALSE;
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
EFI_STATUS
|
||||
DebuggerBreakpointEn (
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN UINTN Index
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
Enable this breakpoint
|
||||
|
||||
Arguments:
|
||||
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
Index - Breakpoint Index
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_SUCCESS - breakpoint enabled successfully
|
||||
EFI_NOT_FOUND - breakpoint not found
|
||||
|
||||
--*/
|
||||
{
|
||||
if ((Index >= EFI_DEBUGGER_BREAKPOINT_MAX) ||
|
||||
(Index >= DebuggerPrivate->DebuggerBreakpointCount)) {
|
||||
return EFI_NOT_FOUND;
|
||||
}
|
||||
|
||||
//
|
||||
// Enable this breakpoint
|
||||
//
|
||||
DebuggerPrivate->DebuggerBreakpointContext[Index].State = TRUE;
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
EFI_DEBUG_STATUS
|
||||
DebuggerBreakpointList (
|
||||
IN CHAR16 *CommandArg,
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN EFI_EXCEPTION_TYPE ExceptionType,
|
||||
IN OUT EFI_SYSTEM_CONTEXT SystemContext
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
DebuggerCommand - BreakpointList
|
||||
|
||||
Arguments:
|
||||
|
||||
CommandArg - The argument for this command
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
InterruptType - Interrupt type.
|
||||
SystemContext - EBC system context.
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_DEBUG_CONTINUE - formal return value
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN Index;
|
||||
|
||||
//
|
||||
// Check breakpoint cound
|
||||
//
|
||||
if (DebuggerPrivate->DebuggerBreakpointCount == 0) {
|
||||
EDBPrint (L"No Breakpoint\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
} else if (DebuggerPrivate->DebuggerBreakpointCount > EFI_DEBUGGER_BREAKPOINT_MAX) {
|
||||
EDBPrint (L"Breakpoint too many!\n");
|
||||
DebuggerPrivate->DebuggerBreakpointCount = 0;
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
//
|
||||
// Go through each breakpoint
|
||||
//
|
||||
EDBPrint (L"Breakpoint :\n");
|
||||
EDBPrint (L" Index Address Status\n");
|
||||
EDBPrint (L"======= ================== ========\n");
|
||||
//EDBPrint (L" 1 0xFFFFFFFF00000000 *\n");
|
||||
//EDBPrint (L" 12 0x00000000FFFFFFFF\n");
|
||||
for (Index = 0; Index < DebuggerPrivate->DebuggerBreakpointCount; Index++) {
|
||||
//
|
||||
// Print the breakpoint
|
||||
//
|
||||
EDBPrint (L" %2d 0x%016lx", Index, DebuggerPrivate->DebuggerBreakpointContext[Index].BreakpointAddress);
|
||||
if (DebuggerPrivate->DebuggerBreakpointContext[Index].State) {
|
||||
EDBPrint (L" *\n");
|
||||
} else {
|
||||
EDBPrint (L"\n");
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
EFI_DEBUG_STATUS
|
||||
DebuggerBreakpointSet (
|
||||
IN CHAR16 *CommandArg,
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN EFI_EXCEPTION_TYPE ExceptionType,
|
||||
IN OUT EFI_SYSTEM_CONTEXT SystemContext
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
DebuggerCommand - BreakpointSet
|
||||
|
||||
Arguments:
|
||||
|
||||
CommandArg - The argument for this command
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
InterruptType - Interrupt type.
|
||||
SystemContext - EBC system context.
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_DEBUG_CONTINUE - formal return value
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN Address;
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (CommandArg == NULL) {
|
||||
EDBPrint (L"BreakpointSet Argument error!\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
//
|
||||
// Get breakpoint address
|
||||
//
|
||||
Status = Symboltoi (CommandArg, &Address);
|
||||
if (EFI_ERROR (Status)) {
|
||||
if (Status == EFI_NOT_FOUND) {
|
||||
Address = Xtoi(CommandArg);
|
||||
} else {
|
||||
//
|
||||
// Something wrong, let Symboltoi print error info.
|
||||
//
|
||||
EDBPrint (L"Command Argument error!\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
}
|
||||
|
||||
//
|
||||
// Add breakpoint
|
||||
//
|
||||
Status = DebuggerBreakpointAdd (DebuggerPrivate, Address);
|
||||
if (EFI_ERROR(Status)) {
|
||||
EDBPrint (L"BreakpointSet error!\n");
|
||||
}
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
EFI_DEBUG_STATUS
|
||||
DebuggerBreakpointClear (
|
||||
IN CHAR16 *CommandArg,
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN EFI_EXCEPTION_TYPE ExceptionType,
|
||||
IN OUT EFI_SYSTEM_CONTEXT SystemContext
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
DebuggerCommand - BreakpointClear
|
||||
|
||||
Arguments:
|
||||
|
||||
CommandArg - The argument for this command
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
InterruptType - Interrupt type.
|
||||
SystemContext - EBC system context.
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_DEBUG_CONTINUE - formal return value
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN Index;
|
||||
EFI_STATUS Status;
|
||||
UINTN Address;
|
||||
UINT16 OldInstruction;
|
||||
|
||||
if (CommandArg == NULL) {
|
||||
EDBPrint (L"BreakpointClear Argument error!\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
if (StriCmp (CommandArg, L"*") == 0) {
|
||||
//
|
||||
// delete all breakpoint
|
||||
//
|
||||
DebuggerPrivate->DebuggerBreakpointCount = 0;
|
||||
ZeroMem (DebuggerPrivate->DebuggerBreakpointContext, sizeof(DebuggerPrivate->DebuggerBreakpointContext));
|
||||
EDBPrint (L"All the Breakpoint is cleared\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
//
|
||||
// Get breakpoint index
|
||||
//
|
||||
Index = Atoi(CommandArg);
|
||||
|
||||
if ((Index >= EFI_DEBUGGER_BREAKPOINT_MAX) ||
|
||||
(Index >= DebuggerPrivate->DebuggerBreakpointCount)) {
|
||||
EDBPrint (L"BreakpointClear error!\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
} else {
|
||||
Address = (UINTN)DebuggerPrivate->DebuggerBreakpointContext[Index].BreakpointAddress;
|
||||
OldInstruction = (UINT16)DebuggerPrivate->DebuggerBreakpointContext[Index].OldInstruction;
|
||||
}
|
||||
|
||||
//
|
||||
// Delete breakpoint
|
||||
//
|
||||
Status = DebuggerBreakpointDel (DebuggerPrivate, Index);
|
||||
if (EFI_ERROR(Status)) {
|
||||
EDBPrint (L"BreakpointClear error!\n");
|
||||
}
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
EFI_DEBUG_STATUS
|
||||
DebuggerBreakpointDisable (
|
||||
IN CHAR16 *CommandArg,
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN EFI_EXCEPTION_TYPE ExceptionType,
|
||||
IN OUT EFI_SYSTEM_CONTEXT SystemContext
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
DebuggerCommand - BreakpointDisable
|
||||
|
||||
Arguments:
|
||||
|
||||
CommandArg - The argument for this command
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
InterruptType - Interrupt type.
|
||||
SystemContext - EBC system context.
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_DEBUG_CONTINUE - formal return value
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN Index;
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (CommandArg == NULL) {
|
||||
EDBPrint (L"BreakpointDisable Argument error!\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
if (StriCmp (CommandArg, L"*") == 0) {
|
||||
//
|
||||
// disable all breakpoint
|
||||
//
|
||||
for (Index = 0; Index < DebuggerPrivate->DebuggerBreakpointCount; Index++) {
|
||||
Status = DebuggerBreakpointDis (DebuggerPrivate, Index);
|
||||
}
|
||||
EDBPrint (L"All the Breakpoint is disabled\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
//
|
||||
// Get breakpoint index
|
||||
//
|
||||
Index = Atoi(CommandArg);
|
||||
|
||||
//
|
||||
// Disable breakpoint
|
||||
//
|
||||
Status = DebuggerBreakpointDis (DebuggerPrivate, Index);
|
||||
if (EFI_ERROR(Status)) {
|
||||
EDBPrint (L"BreakpointDisable error!\n");
|
||||
}
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
EFI_DEBUG_STATUS
|
||||
DebuggerBreakpointEnable (
|
||||
IN CHAR16 *CommandArg,
|
||||
IN EFI_DEBUGGER_PRIVATE_DATA *DebuggerPrivate,
|
||||
IN EFI_EXCEPTION_TYPE ExceptionType,
|
||||
IN OUT EFI_SYSTEM_CONTEXT SystemContext
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
|
||||
DebuggerCommand - BreakpointEnable
|
||||
|
||||
Arguments:
|
||||
|
||||
CommandArg - The argument for this command
|
||||
DebuggerPrivate - EBC Debugger private data structure
|
||||
InterruptType - Interrupt type.
|
||||
SystemContext - EBC system context.
|
||||
|
||||
Returns:
|
||||
|
||||
EFI_DEBUG_CONTINUE - formal return value
|
||||
|
||||
--*/
|
||||
{
|
||||
UINTN Index;
|
||||
EFI_STATUS Status;
|
||||
|
||||
if (CommandArg == NULL) {
|
||||
EDBPrint (L"BreakpointEnable Argument error!\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
if (StriCmp (CommandArg, L"*") == 0) {
|
||||
//
|
||||
// enable all breakpoint
|
||||
//
|
||||
for (Index = 0; Index < DebuggerPrivate->DebuggerBreakpointCount; Index++) {
|
||||
Status = DebuggerBreakpointEn (DebuggerPrivate, Index);
|
||||
}
|
||||
EDBPrint (L"All the Breakpoint is enabled\n");
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
|
||||
//
|
||||
// Get breakpoint index
|
||||
//
|
||||
Index = Atoi(CommandArg);
|
||||
|
||||
//
|
||||
// Enable breakpoint
|
||||
//
|
||||
Status = DebuggerBreakpointEn (DebuggerPrivate, Index);
|
||||
if (EFI_ERROR(Status)) {
|
||||
EDBPrint (L"BreakpointEnable error!\n");
|
||||
}
|
||||
|
||||
//
|
||||
// Done
|
||||
//
|
||||
return EFI_DEBUG_CONTINUE;
|
||||
}
|
||||
Reference in New Issue
Block a user