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code scrub for DebugSpport Module.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6997 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2008-12-11 08:38:20 +00:00
parent 89df7f9df7
commit c84507ab52
12 changed files with 369 additions and 456 deletions
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34
MdeModulePkg/Universal/DebugSupportDxe/Ia32/PlDebugSupportIa32.c
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@@ -15,23 +15,24 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include "DebugSupport.h"
/**
Get Procedure Entry Point from IDT Gate Descriptor.
Get Interrupt Handle from IDT Gate Descriptor.
@param IdtGateDecriptor IDT Gate Descriptor.
@param IdtGateDescriptor IDT Gate Descriptor.
@return Procedure Entry Point located in IDT Gate Descriptor.
@return Interrupt Handle stored in IDT Gate Descriptor.
**/
UINTN GetProcedureEntryPoint (
IN IA32_IDT_GATE_DESCRIPTOR *IdtGateDecriptor
UINTN
GetInterruptHandleFromIdt (
IN IA32_IDT_GATE_DESCRIPTOR *IdtGateDescriptor
)
{
UINTN ProcedureEntryPoint;
UINTN InterruptHandle;
((UINT16 *) &ProcedureEntryPoint)[0] = (UINT16) IdtGateDecriptor->Bits.OffsetLow;
((UINT16 *) &ProcedureEntryPoint)[1] = (UINT16) IdtGateDecriptor->Bits.OffsetHigh;
((UINT16 *) &InterruptHandle)[0] = (UINT16) IdtGateDescriptor->Bits.OffsetLow;
((UINT16 *) &InterruptHandle)[1] = (UINT16) IdtGateDescriptor->Bits.OffsetHigh;
return ProcedureEntryPoint;
return InterruptHandle;
}
/**
@@ -44,10 +45,8 @@ UINTN GetProcedureEntryPoint (
for.
@param Stub On successful exit, *Stub contains the newly allocated entry stub.
@retval EFI_SUCCESS Always.
**/
EFI_STATUS
VOID
CreateEntryStub (
IN EFI_EXCEPTION_TYPE ExceptionType,
OUT VOID **Stub
@@ -80,7 +79,7 @@ CreateEntryStub (
//
*(UINT32 *) &StubCopy[0x0e] = (UINT32) CommonIdtEntry - (UINT32) &StubCopy[StubSize];
return EFI_SUCCESS;
return ;
}
/**
@@ -94,16 +93,15 @@ CreateEntryStub (
be uninstalled.
@param ExceptionType Indicates which entry to manage.
@retval EFI_SUCCESS Process is ok.
@retval EFI_SUCCESS Installing or Uninstalling operation is ok.
@retval EFI_INVALID_PARAMETER Requested uninstalling a handler from a vector that has
no handler registered for it
@retval EFI_ALREADY_STARTED Requested install to a vector that already has a handler registered.
@retval others Possible return values are passed through from UnHookEntry and HookEntry.
**/
EFI_STATUS
ManageIdtEntryTable (
VOID (*NewCallback)(),
VOID (*NewCallback)(),
EFI_EXCEPTION_TYPE ExceptionType
)
{
@@ -122,7 +120,7 @@ ManageIdtEntryTable (
//
Status = EFI_ALREADY_STARTED;
} else {
Status = UnhookEntry (ExceptionType);
UnhookEntry (ExceptionType);
}
} else {
//
@@ -134,7 +132,7 @@ ManageIdtEntryTable (
//
Status = EFI_INVALID_PARAMETER;
} else {
Status = HookEntry (ExceptionType, NewCallback);
HookEntry (ExceptionType, NewCallback);
}
}
}