diff options
Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/ArchDebugSupport.c')
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/ArchDebugSupport.c | 61 |
1 files changed, 31 insertions, 30 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/ArchDebugSupport.c b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/ArchDebugSupport.c index 6b6c71020c..bda113ecca 100644 --- a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/ArchDebugSupport.c +++ b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/X64/ArchDebugSupport.c @@ -17,12 +17,12 @@ InitializeDebugIdt ( VOID
)
{
- IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
- UINTN InterruptHandler;
- IA32_DESCRIPTOR IdtDescriptor;
- UINTN Index;
- UINT16 CodeSegment;
- UINT32 RegEdx;
+ IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
+ UINTN InterruptHandler;
+ IA32_DESCRIPTOR IdtDescriptor;
+ UINTN Index;
+ UINT16 CodeSegment;
+ UINT32 RegEdx;
AsmReadIdtr (&IdtDescriptor);
@@ -31,29 +31,30 @@ InitializeDebugIdt ( //
CodeSegment = AsmReadCs ();
- IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *) IdtDescriptor.Base;
+ IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *)IdtDescriptor.Base;
- for (Index = 0; Index < 20; Index ++) {
+ for (Index = 0; Index < 20; Index++) {
if (((PcdGet32 (PcdExceptionsIgnoredByDebugger) & ~(BIT1 | BIT3)) & (1 << Index)) != 0) {
//
// If the exception is masked to be reserved except for INT1 and INT3, skip it
//
continue;
}
- InterruptHandler = (UINTN)&Exception0Handle + Index * ExceptionStubHeaderSize;
- IdtEntry[Index].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
- IdtEntry[Index].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
- IdtEntry[Index].Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);
- IdtEntry[Index].Bits.Selector = CodeSegment;
- IdtEntry[Index].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+
+ InterruptHandler = (UINTN)&Exception0Handle + Index * ExceptionStubHeaderSize;
+ IdtEntry[Index].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
+ IdtEntry[Index].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
+ IdtEntry[Index].Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);
+ IdtEntry[Index].Bits.Selector = CodeSegment;
+ IdtEntry[Index].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
}
- InterruptHandler = (UINTN) &TimerInterruptHandle;
- IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
- IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
- IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);
- IdtEntry[DEBUG_TIMER_VECTOR].Bits.Selector = CodeSegment;
- IdtEntry[DEBUG_TIMER_VECTOR].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
+ InterruptHandler = (UINTN)&TimerInterruptHandle;
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetLow = (UINT16)(UINTN)InterruptHandler;
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetHigh = (UINT16)((UINTN)InterruptHandler >> 16);
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.OffsetUpper = (UINT32)((UINTN)InterruptHandler >> 32);
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.Selector = CodeSegment;
+ IdtEntry[DEBUG_TIMER_VECTOR].Bits.GateType = IA32_IDT_GATE_TYPE_INTERRUPT_32;
//
// If the CPU supports Debug Extensions(CPUID:01 EDX:BIT2), then
@@ -75,16 +76,16 @@ InitializeDebugIdt ( **/
VOID *
GetExceptionHandlerInIdtEntry (
- IN UINTN ExceptionNum
+ IN UINTN ExceptionNum
)
{
- IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
- IA32_DESCRIPTOR IdtDescriptor;
+ IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
+ IA32_DESCRIPTOR IdtDescriptor;
AsmReadIdtr (&IdtDescriptor);
- IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *) IdtDescriptor.Base;
+ IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *)IdtDescriptor.Base;
- return (VOID *) (IdtEntry[ExceptionNum].Bits.OffsetLow |
+ return (VOID *)(IdtEntry[ExceptionNum].Bits.OffsetLow |
(((UINTN)IdtEntry[ExceptionNum].Bits.OffsetHigh) << 16) |
(((UINTN)IdtEntry[ExceptionNum].Bits.OffsetUpper) << 32));
}
@@ -98,15 +99,15 @@ GetExceptionHandlerInIdtEntry ( **/
VOID
SetExceptionHandlerInIdtEntry (
- IN UINTN ExceptionNum,
- IN VOID *ExceptionHandler
+ IN UINTN ExceptionNum,
+ IN VOID *ExceptionHandler
)
{
- IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
- IA32_DESCRIPTOR IdtDescriptor;
+ IA32_IDT_GATE_DESCRIPTOR *IdtEntry;
+ IA32_DESCRIPTOR IdtDescriptor;
AsmReadIdtr (&IdtDescriptor);
- IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *) IdtDescriptor.Base;
+ IdtEntry = (IA32_IDT_GATE_DESCRIPTOR *)IdtDescriptor.Base;
IdtEntry[ExceptionNum].Bits.OffsetLow = (UINT16)(UINTN)ExceptionHandler;
IdtEntry[ExceptionNum].Bits.OffsetHigh = (UINT16)((UINTN)ExceptionHandler >> 16);
|