Main routines for the EBC interpreter. Includes the initialization and\r
main interpreter routines.\r
\r
-Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r
-All rights reserved. This program and the accompanying materials\r
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
#include <Protocol/DebugSupport.h>\r
#include <Protocol/Ebc.h>\r
+#include <Protocol/EbcVmTest.h>\r
+#include <Protocol/EbcSimpleDebugger.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
\r
-typedef INT64 VM_REGISTER;\r
-typedef UINT8 *VMIP; // instruction pointer for the VM\r
-typedef UINT32 EXCEPTION_FLAGS;\r
-\r
-typedef struct {\r
- VM_REGISTER R[8]; // General purpose registers.\r
- UINT64 Flags; // Flags register:\r
- // 0 Set to 1 if the result of the last compare was true\r
- // 1 Set to 1 if stepping\r
- // 2..63 Reserved.\r
- VMIP Ip; // Instruction pointer.\r
- UINTN LastException; //\r
- EXCEPTION_FLAGS ExceptionFlags; // to keep track of exceptions\r
- UINT32 StopFlags;\r
- UINT32 CompilerVersion; // via break(6)\r
- UINTN HighStackBottom; // bottom of the upper stack\r
- UINTN LowStackTop; // top of the lower stack\r
- UINT64 StackRetAddr; // location of final return address on stack\r
- UINTN *StackMagicPtr; // pointer to magic value on stack to detect corruption\r
- EFI_HANDLE ImageHandle; // for this EBC driver\r
- EFI_SYSTEM_TABLE *SystemTable; // for debugging only\r
- UINTN LastAddrConverted; // for debug\r
- UINTN LastAddrConvertedValue; // for debug\r
- VOID *FramePtr;\r
- VOID *EntryPoint; // entry point of EBC image\r
- UINTN ImageBase;\r
- VOID *StackPool;\r
- VOID *StackTop;\r
-} VM_CONTEXT;\r
-\r
extern VM_CONTEXT *mVmPtr;\r
\r
//\r
\r
/**\r
Add a thunk to our list of thunks for a given image handle.\r
- Also flush the instruction cache since we have written thunk code\r
+ Also flush the instruction cache since we've written thunk code\r
to memory that will be executed eventually.\r
\r
@param ImageHandle The image handle to which the thunk is tied.\r
VOID\r
);\r
\r
-/**\r
- Returns the caller's value of the stack pointer.\r
-\r
- We adjust it by 4 here because when they called us, the return address\r
- is put on the stack, thereby lowering it by 4 bytes.\r
-\r
- @return The current value of the stack pointer for the caller.\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-EbcLLGetStackPointer (\r
- VOID\r
- );\r
-\r
/**\r
This function is called to execute an EBC CALLEX instruction.\r
This instruction requires that we thunk out to external native\r
@param EbcSp The new EBC stack pointer.\r
@param FramePtr The frame pointer.\r
\r
+ @return The unmodified value returned by the native code.\r
+\r
**/\r
-VOID\r
+INT64\r
EFIAPI\r
EbcLLCALLEXNative (\r
IN UINTN CallAddr,\r
);\r
\r
/**\r
- When EBC calls native, on return the VM has to stuff the return\r
- value into a VM register. It's assumed here that the value is still\r
- in the register, so simply return and the caller should get the\r
- return result properly.\r
-\r
- @return The unmodified value returned by the native code.\r
-\r
-**/\r
-INT64\r
-EFIAPI\r
-EbcLLGetReturnValue (\r
- VOID\r
- );\r
-\r
-/**\r
- Returns the stack index and buffer associated with the Handle parameter.\r
+ Returns the stack index and buffer assosicated with the Handle parameter.\r
\r
@param Handle The EFI handle as the index to the EBC stack.\r
@param StackBuffer A pointer to hold the returned stack buffer.\r
IN EFI_HANDLE Handle\r
);\r
\r
-\r
-//\r
-// Defines for a simple EBC debugger interface\r
-//\r
-typedef struct _EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL;\r
-\r
-#define EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL_GUID \\r
- { \\r
- 0x2a72d11e, 0x7376, 0x40f6, { 0x9c, 0x68, 0x23, 0xfa, 0x2f, 0xe3, 0x63, 0xf1 } \\r
- }\r
-\r
-typedef\r
-EFI_STATUS\r
-(*EBC_DEBUGGER_SIGNAL_EXCEPTION) (\r
- IN EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL *This,\r
- IN VM_CONTEXT *VmPtr,\r
- IN EFI_EXCEPTION_TYPE ExceptionType\r
- );\r
-\r
-typedef\r
-VOID\r
-(*EBC_DEBUGGER_DEBUG) (\r
- IN EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL *This,\r
- IN VM_CONTEXT *VmPtr\r
- );\r
-\r
-typedef\r
-UINT32\r
-(*EBC_DEBUGGER_DASM) (\r
- IN EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL *This,\r
- IN VM_CONTEXT *VmPtr,\r
- IN UINT16 *DasmString OPTIONAL,\r
- IN UINT32 DasmStringSize\r
- );\r
-\r
-//\r
-// This interface allows you to configure the EBC debug support\r
-// driver. For example, turn on or off saving and printing of\r
-// delta VM even if called. Or to even disable the entire interface,\r
-// in which case all functions become no-ops.\r
-//\r
-typedef\r
-EFI_STATUS\r
-(*EBC_DEBUGGER_CONFIGURE) (\r
- IN EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL *This,\r
- IN UINT32 ConfigId,\r
- IN UINTN ConfigValue\r
- );\r
-\r
-//\r
-// Prototype for the actual EBC debug support protocol interface\r
-//\r
-struct _EFI_EBC_SIMPLE_DEBUGGER_PROTOCOL {\r
- EBC_DEBUGGER_DEBUG Debugger;\r
- EBC_DEBUGGER_SIGNAL_EXCEPTION SignalException;\r
- EBC_DEBUGGER_DASM Dasm;\r
- EBC_DEBUGGER_CONFIGURE Configure;\r
-};\r
-\r
typedef struct {\r
EFI_EBC_PROTOCOL *This;\r
VOID *EntryPoint;\r