sravan/system76-edk2
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1. Advance IP in case of Break(3) in breakpoint exception

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2. Add stack management algorithm to avoid pool allocation during EBC instruction interpretation. 
3. Add multi EBC image support.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2519 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qhuang8
2007-03-30 08:44:55 +00:00
parent 784220c3f7
commit 73ebf379a4
13 changed files with 420 additions and 121 deletions
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29
EdkModulePkg/Universal/Ebc/Dxe/EbcExecute.c
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@ -22,11 +22,6 @@ Abstract:
#include "EbcInt.h"
#include "EbcExecute.h"
//
// VM major/minor version
//
#define VM_MAJOR_VERSION 1
#define VM_MINOR_VERSION 0
//
// Define some useful data size constants to allow switch statements based on
@ -763,10 +758,15 @@ Returns:
EbcDebugSignalException (EXCEPT_EBC_STACK_FAULT, EXCEPTION_FLAG_FATAL, VmPtr);
StackCorrupted = 1;
}
if (!StackCorrupted && ((UINT64)VmPtr->R[0] <= (UINT64)(UINTN) VmPtr->StackTop)) {
EbcDebugSignalException (EXCEPT_EBC_STACK_FAULT, EXCEPTION_FLAG_FATAL, VmPtr);
StackCorrupted = 1;
}
}
Done:
mVmPtr = NULL;
return Status;
}
@ -1122,10 +1122,6 @@ Returns:
EXCEPTION_FLAG_NONE,
VmPtr
);
//
// Don't advance the IP
//
return EFI_UNSUPPORTED;
break;
//
@ -4504,19 +4500,8 @@ Returns:
adjust for the stack gap and return the modified address.
--*/
{
if ((Addr >= VmPtr->LowStackTop) && (Addr < VmPtr->HighStackBottom)) {
//
// In the stack gap -- now make sure it's not in the VM itself, which
// would be the case if it's accessing VM register contents.
//
if ((Addr < (UINTN) VmPtr) || (Addr > (UINTN) VmPtr + sizeof (VM_CONTEXT))) {
VmPtr->LastAddrConverted = Addr;
VmPtr->LastAddrConvertedValue = Addr - VmPtr->LowStackTop + VmPtr->HighStackBottom;
return Addr - VmPtr->LowStackTop + VmPtr->HighStackBottom;
}
}
{
ASSERT(((Addr < VmPtr->LowStackTop) || (Addr > VmPtr->HighStackBottom)));
return Addr;
}