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
-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
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
#include <Protocol/DebugSupport.h>\r
#include <Protocol/Ebc.h>\r
+#include <Protocol/EbcVmTest.h>\r
+#include <Protocol/EbcSimpleDebugger.h>\r
+#include <Protocol/PeCoffImageEmulator.h>\r
\r
#include <Library/BaseLib.h>\r
+#include <Library/CacheMaintenanceLib.h>\r
#include <Library/DebugLib.h>\r
+#include <Library/PeCoffLib.h>\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/BaseMemoryLib.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
-// Bits of exception flags field of VM context\r
-//\r
-#define EXCEPTION_FLAG_FATAL 0x80000000 // can't continue\r
-#define EXCEPTION_FLAG_ERROR 0x40000000 // bad, but try to continue\r
-#define EXCEPTION_FLAG_WARNING 0x20000000 // harmless problem\r
-#define EXCEPTION_FLAG_NONE 0x00000000 // for normal return\r
//\r
// Flags passed to the internal create-thunks function.\r
//\r
IN UINT32 ThunkSize\r
);\r
\r
-//\r
-// The interpreter calls these when an exception is detected,\r
-// or as a periodic callback.\r
-//\r
-/**\r
- The VM interpreter calls this function when an exception is detected.\r
-\r
- @param ExceptionType Specifies the processor exception detected.\r
- @param ExceptionFlags Specifies the exception context.\r
- @param VmPtr Pointer to a VM context for passing info to the\r
- EFI debugger.\r
-\r
- @retval EFI_SUCCESS This function completed successfully.\r
-\r
-**/\r
-EFI_STATUS\r
-EbcDebugSignalException (\r
- IN EFI_EXCEPTION_TYPE ExceptionType,\r
- IN EXCEPTION_FLAGS ExceptionFlags,\r
- IN VM_CONTEXT *VmPtr\r
- );\r
-\r
//\r
// Define a constant of how often to call the debugger periodic callback\r
// function.\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
IN UINT8 Size\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 assosicated with the Handle parameter.\r
\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
VM_CONTEXT VmContext;\r
} EFI_EBC_THUNK_DATA;\r
\r
-#define EBC_PROTOCOL_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32 ('e', 'b', 'c', 'p')\r
+#define EBC_PROTOCOL_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('e', 'b', 'c', 'p')\r
\r
\r
#define EBC_PROTOCOL_PRIVATE_DATA_FROM_THIS(a) \\r
CR(a, EBC_PROTOCOL_PRIVATE_DATA, EbcProtocol, EBC_PROTOCOL_PRIVATE_DATA_SIGNATURE)\r
\r
\r
+/**\r
+ Allocates a buffer of type EfiBootServicesCode.\r
+\r
+ @param AllocationSize The number of bytes to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+EbcAllocatePoolForThunk (\r
+ IN UINTN AllocationSize\r
+ );\r
+\r
#endif // #ifndef _EBC_INT_H_\r
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