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From: Pete Batard <pete@akeo.ie>
To: edk2-devel@lists.01.org
Subject: [PATCH v4 1/3] MdeModulePkg/EbcDxe: prepare support for EBC Debugger
Date: Wed, 16 Nov 2016 13:24:08 +0000	[thread overview]
Message-ID: <20161116132410.10776-2-pete@akeo.ie> (raw)
In-Reply-To: <20161116132410.10776-1-pete@akeo.ie>

* This patch introduces EbcDebuggerHook.c/h and inserts the required
  EBCDebugger references into the existing EBC source files.
* With all the hooks defined to their empty version in EbcDebuggerHook.c
  the existing EBC VM behaviour is left unaffected.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Pete Batard <pete@akeo.ie>
---
 MdeModulePkg/Universal/EbcDxe/AArch64/EbcSupport.c |   3 +
 MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.c    | 158 +++++++++++++++++++++
 MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.h    | 113 +++++++++++++++
 MdeModulePkg/Universal/EbcDxe/EbcDxe.inf           |   4 +-
 MdeModulePkg/Universal/EbcDxe/EbcExecute.c         |  39 +++++
 MdeModulePkg/Universal/EbcDxe/EbcInt.c             |   6 +
 MdeModulePkg/Universal/EbcDxe/Ia32/EbcSupport.c    |   7 +-
 MdeModulePkg/Universal/EbcDxe/Ipf/EbcSupport.c     |   9 +-
 MdeModulePkg/Universal/EbcDxe/X64/EbcSupport.c     |   7 +-
 9 files changed, 339 insertions(+), 7 deletions(-)
 create mode 100644 MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.c
 create mode 100644 MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.h

diff --git a/MdeModulePkg/Universal/EbcDxe/AArch64/EbcSupport.c b/MdeModulePkg/Universal/EbcDxe/AArch64/EbcSupport.c
index c5cc76d7bdcb..ade47c4d0622 100644
--- a/MdeModulePkg/Universal/EbcDxe/AArch64/EbcSupport.c
+++ b/MdeModulePkg/Universal/EbcDxe/AArch64/EbcSupport.c
@@ -18,6 +18,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "EbcInt.h"
 #include "EbcExecute.h"
+#include "EbcDebuggerHook.h"
 
 //
 // Amount of space that is not used in the stack
@@ -225,6 +226,7 @@ EbcInterpret (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookEbcInterpret (&VmContext);
   EbcExecute (&VmContext);
 
   //
@@ -336,6 +338,7 @@ ExecuteEbcImageEntryPoint (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookExecuteEbcImageEntryPoint (&VmContext);
   EbcExecute (&VmContext);
 
   //
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.c b/MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.c
new file mode 100644
index 000000000000..88a43f236435
--- /dev/null
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.c
@@ -0,0 +1,158 @@
+/** @file
+  Contains the empty version of the EBC Debugger hooks, to be used when
+  compiling the regular EBC VM module.
+  As debugging is not needed for the standard EBC VM, all calls are left empty.
+
+  The EBC Debugger defines its own version for these calls in EbdHooks.c.
+
+  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Uefi.h>
+#include <Protocol/DebugSupport.h>
+#include <Protocol/EbcVmTest.h>
+
+VOID
+EbcDebuggerHookInit (
+  IN EFI_HANDLE                  Handle,
+  IN EFI_DEBUG_SUPPORT_PROTOCOL  *EbcDebugProtocol
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookUnload (
+  VOID
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookEbcUnloadImage (
+  IN EFI_HANDLE                  Handle
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookExecuteEbcImageEntryPoint (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookEbcInterpret (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookExecuteStart (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookExecuteEnd (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookCALLStart (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookCALLEnd (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookCALLEXStart (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookCALLEXEnd (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookRETStart (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookRETEnd (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookJMPStart (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookJMPEnd (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookJMP8Start (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
+
+VOID
+EbcDebuggerHookJMP8End (
+  IN VM_CONTEXT *VmPtr
+  )
+{
+  return;
+}
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.h b/MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.h
new file mode 100644
index 000000000000..f4dd5cf813a1
--- /dev/null
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDebuggerHook.h
@@ -0,0 +1,113 @@
+/** @file
+  Prototypes for the EBC Debugger hooks.
+
+  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _EFI_EBC_DEBUGGER_HOOK_H_
+#define _EFI_EBC_DEBUGGER_HOOK_H_
+
+//
+// Hooks in EbcInt.c
+//
+VOID
+EbcDebuggerHookInit (
+  IN EFI_HANDLE                  Handle,
+  IN EFI_DEBUG_SUPPORT_PROTOCOL  *EbcDebugProtocol
+  );
+
+VOID
+EbcDebuggerHookUnload (
+  VOID
+  );
+
+VOID
+EbcDebuggerHookEbcUnloadImage (
+  IN EFI_HANDLE                  Handle
+  );
+
+//
+// Hooks in EbcSupport.c
+//
+VOID
+EbcDebuggerHookExecuteEbcImageEntryPoint (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookEbcInterpret (
+  IN VM_CONTEXT *VmPtr
+  );
+
+//
+// Hooks in EbcExecute.c
+//
+VOID
+EbcDebuggerHookExecuteStart (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookExecuteEnd (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookCALLStart (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookCALLEnd (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookCALLEXStart (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookCALLEXEnd (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookRETStart (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookRETEnd (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookJMPStart (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookJMPEnd (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookJMP8Start (
+  IN VM_CONTEXT *VmPtr
+  );
+
+VOID
+EbcDebuggerHookJMP8End (
+  IN VM_CONTEXT *VmPtr
+  );
+
+#endif
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf b/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
index e9a0b28c4074..d11888e25f92 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
@@ -33,6 +33,8 @@ [Defines]
 #
 
 [Sources]
+  EbcDebuggerHook.h
+  EbcDebuggerHook.c
   EbcExecute.h
   EbcExecute.c
   EbcInt.h
@@ -88,4 +90,4 @@ [Depex]
 # EVENT_TYPE_PERIODIC_TIMER ## CONSUMES
 
 [UserExtensions.TianoCore."ExtraFiles"]
-  EbcDxeExtra.uni
\ No newline at end of file
+  EbcDxeExtra.uni
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcExecute.c b/MdeModulePkg/Universal/EbcDxe/EbcExecute.c
index d9c17f48a038..a4c51e9b0f61 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcExecute.c
+++ b/MdeModulePkg/Universal/EbcDxe/EbcExecute.c
@@ -14,6 +14,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "EbcInt.h"
 #include "EbcExecute.h"
+#include "EbcDebuggerHook.h"
 
 
 //
@@ -1488,6 +1489,9 @@ EbcExecute (
       Status = EFI_UNSUPPORTED;
       goto Done;
     }
+
+    EbcDebuggerHookExecuteStart (VmPtr);
+
     //
     // The EBC VM is a strongly ordered processor, so perform a fence operation before
     // and after each instruction is executed.
@@ -1498,6 +1502,8 @@ EbcExecute (
 
     MemoryFence ();
 
+    EbcDebuggerHookExecuteEnd (VmPtr);
+
     //
     // If the step flag is set, signal an exception and continue. We don't
     // clear it here. Assuming the debugger is responsible for clearing it.
@@ -1976,7 +1982,9 @@ ExecuteJMP (
   ConditionFlag = (UINT8) VMFLAG_ISSET (VmPtr, VMFLAGS_CC);
   if ((Operand & CONDITION_M_CONDITIONAL) != 0) {
     if (CompareSet != ConditionFlag) {
+      EbcDebuggerHookJMPStart (VmPtr);
       VmPtr->Ip += Size;
+      EbcDebuggerHookJMPEnd (VmPtr);
       return EFI_SUCCESS;
     }
   }
@@ -2015,11 +2023,13 @@ ExecuteJMP (
     //
     // Take jump -- relative or absolute
     //
+    EbcDebuggerHookJMPStart (VmPtr);
     if ((Operand & JMP_M_RELATIVE) != 0) {
       VmPtr->Ip += (UINTN) Data64 + Size;
     } else {
       VmPtr->Ip = (VMIP) (UINTN) Data64;
     }
+    EbcDebuggerHookJMPEnd (VmPtr);
 
     return EFI_SUCCESS;
   }
@@ -2065,11 +2075,14 @@ ExecuteJMP (
       return EFI_UNSUPPORTED;
     }
 
+    EbcDebuggerHookJMPStart (VmPtr);
     if ((Operand & JMP_M_RELATIVE) != 0) {
       VmPtr->Ip += (UINTN) Addr + Size;
     } else {
       VmPtr->Ip = (VMIP) Addr;
     }
+    EbcDebuggerHookJMPEnd (VmPtr);
+
   } else {
     //
     // Form: JMP32 Rx {Immed32}
@@ -2085,11 +2098,14 @@ ExecuteJMP (
       return EFI_UNSUPPORTED;
     }
 
+    EbcDebuggerHookJMPStart (VmPtr);
     if ((Operand & JMP_M_RELATIVE) != 0) {
       VmPtr->Ip += (UINTN) Addr + Size;
     } else {
       VmPtr->Ip = (VMIP) Addr;
     }
+    EbcDebuggerHookJMPEnd (VmPtr);
+
   }
 
   return EFI_SUCCESS;
@@ -2129,7 +2145,9 @@ ExecuteJMP8 (
   //
   if ((Opcode & CONDITION_M_CONDITIONAL) != 0) {
     if (CompareSet != ConditionFlag) {
+      EbcDebuggerHookJMP8Start (VmPtr);
       VmPtr->Ip += 2;
+      EbcDebuggerHookJMP8End (VmPtr);
       return EFI_SUCCESS;
     }
   }
@@ -2141,7 +2159,9 @@ ExecuteJMP8 (
   //
   // Want to check for offset == -2 and then raise an exception?
   //
+  EbcDebuggerHookJMP8Start (VmPtr);
   VmPtr->Ip += (Offset * 2) + 2;
+  EbcDebuggerHookJMP8End (VmPtr);
   return EFI_SUCCESS;
 }
 
@@ -2966,6 +2986,13 @@ ExecuteCALL (
   //
   Opcode    = GETOPCODE (VmPtr);
   Operands  = GETOPERANDS (VmPtr);
+
+  if (Operands & OPERAND_M_NATIVE_CALL) {
+    EbcDebuggerHookCALLEXStart (VmPtr);
+  } else {
+    EbcDebuggerHookCALLStart (VmPtr);
+  }
+
   //
   // Assign these as well to avoid compiler warnings
   //
@@ -3067,6 +3094,12 @@ ExecuteCALL (
     }
   }
 
+  if (Operands & OPERAND_M_NATIVE_CALL) {
+    EbcDebuggerHookCALLEXEnd (VmPtr);
+  } else {
+    EbcDebuggerHookCALLEnd (VmPtr);
+  }
+
   return EFI_SUCCESS;
 }
 
@@ -3087,6 +3120,9 @@ ExecuteRET (
   IN VM_CONTEXT *VmPtr
   )
 {
+
+  EbcDebuggerHookRETStart (VmPtr);
+
   //
   // If we're at the top of the stack, then simply set the done
   // flag and return
@@ -3114,6 +3150,9 @@ ExecuteRET (
     VmPtr->Gpr[0] += 8;
   }
 
+
+  EbcDebuggerHookRETEnd (VmPtr);
+
   return EFI_SUCCESS;
 }
 
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcInt.c b/MdeModulePkg/Universal/EbcDxe/EbcInt.c
index 549e0dd8dc1c..6fd2aaf5af27 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcInt.c
+++ b/MdeModulePkg/Universal/EbcDxe/EbcInt.c
@@ -16,6 +16,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "EbcInt.h"
 #include "EbcExecute.h"
+#include "EbcDebuggerHook.h"
 
 //
 // We'll keep track of all thunks we create in a linked list. Each
@@ -497,6 +498,8 @@ InitializeEbcDriver (
     InitEbcVmTestProtocol (&ImageHandle);
   DEBUG_CODE_END ();
 
+  EbcDebuggerHookInit (ImageHandle, EbcDebugProtocol);
+
   return EFI_SUCCESS;
 
 ErrorExit:
@@ -1094,6 +1097,9 @@ EbcUnloadImage (
   // Now free up the image list element
   //
   FreePool (ImageList);
+
+  EbcDebuggerHookEbcUnloadImage (ImageHandle);
+
   return EFI_SUCCESS;
 }
 
diff --git a/MdeModulePkg/Universal/EbcDxe/Ia32/EbcSupport.c b/MdeModulePkg/Universal/EbcDxe/Ia32/EbcSupport.c
index bddfbf630d73..8e660b93ad64 100644
--- a/MdeModulePkg/Universal/EbcDxe/Ia32/EbcSupport.c
+++ b/MdeModulePkg/Universal/EbcDxe/Ia32/EbcSupport.c
@@ -15,6 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "EbcInt.h"
 #include "EbcExecute.h"
+#include "EbcDebuggerHook.h"
 
 //
 // NOTE: This is the stack size allocated for the interpreter
@@ -332,10 +333,11 @@ EbcInterpret (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookEbcInterpret (&VmContext);
   EbcExecute (&VmContext);
 
   //
-  // Return the value in R[7] unless there was an error
+  // Return the value in Gpr[7] unless there was an error
   //
   ReturnEBCStack(StackIndex);
   return (UINT64) VmContext.Gpr[7];
@@ -432,10 +434,11 @@ ExecuteEbcImageEntryPoint (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookExecuteEbcImageEntryPoint (&VmContext);
   EbcExecute (&VmContext);
 
   //
-  // Return the value in R[7] unless there was an error
+  // Return the value in Gpr[7] unless there was an error
   //
   ReturnEBCStack(StackIndex);
   return (UINT64) VmContext.Gpr[7];
diff --git a/MdeModulePkg/Universal/EbcDxe/Ipf/EbcSupport.c b/MdeModulePkg/Universal/EbcDxe/Ipf/EbcSupport.c
index 23b6c1bd8472..95837cb67865 100644
--- a/MdeModulePkg/Universal/EbcDxe/Ipf/EbcSupport.c
+++ b/MdeModulePkg/Universal/EbcDxe/Ipf/EbcSupport.c
@@ -16,6 +16,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include "EbcInt.h"
 #include "EbcExecute.h"
 #include "EbcSupport.h"
+#include "EbcDebuggerHook.h"
 
 /**
   Given raw bytes of Itanium based code, format them into a bundle and
@@ -214,12 +215,15 @@ EbcInterpret (
   PushU64 (&VmContext, 0);
   PushU64 (&VmContext, 0xDEADBEEFDEADBEEF);
   VmContext.StackRetAddr = (UINT64) VmContext.Gpr[0];
+
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookEbcInterpret (&VmContext);
   EbcExecute (&VmContext);
+
   //
-  // Return the value in R[7] unless there was an error
+  // Return the value in Gpr[7] unless there was an error
   //
   ReturnEBCStack(StackIndex);
   return (UINT64) VmContext.Gpr[7];
@@ -334,10 +338,11 @@ ExecuteEbcImageEntryPoint (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookExecuteEbcImageEntryPoint (&VmContext);
   EbcExecute (&VmContext);
 
   //
-  // Return the value in R[7] unless there was an error
+  // Return the value in Gpr[7] unless there was an error
   //
   ReturnEBCStack(StackIndex);
   return (UINT64) VmContext.Gpr[7];
diff --git a/MdeModulePkg/Universal/EbcDxe/X64/EbcSupport.c b/MdeModulePkg/Universal/EbcDxe/X64/EbcSupport.c
index bdde5e41fad8..4325e2e52710 100644
--- a/MdeModulePkg/Universal/EbcDxe/X64/EbcSupport.c
+++ b/MdeModulePkg/Universal/EbcDxe/X64/EbcSupport.c
@@ -15,6 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 
 #include "EbcInt.h"
 #include "EbcExecute.h"
+#include "EbcDebuggerHook.h"
 
 //
 // NOTE: This is the stack size allocated for the interpreter
@@ -278,10 +279,11 @@ EbcInterpret (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookEbcInterpret (&VmContext);
   EbcExecute (&VmContext);
 
   //
-  // Return the value in R[7] unless there was an error
+  // Return the value in Gpr[7] unless there was an error
   //
   ReturnEBCStack(StackIndex);
   return (UINT64) VmContext.Gpr[7];
@@ -389,10 +391,11 @@ ExecuteEbcImageEntryPoint (
   //
   // Begin executing the EBC code
   //
+  EbcDebuggerHookExecuteEbcImageEntryPoint (&VmContext);
   EbcExecute (&VmContext);
 
   //
-  // Return the value in R[7] unless there was an error
+  // Return the value in Gpr[7] unless there was an error
   //
   ReturnEBCStack(StackIndex);
   return (UINT64) VmContext.Gpr[7];
-- 
2.9.3.windows.2



  reply	other threads:[~2016-11-16 13:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-16 13:24 [PATCH v4 0/3] MdeModulePkg/EbcDxe: add EBC Debugger Pete Batard
2016-11-16 13:24 ` Pete Batard [this message]
2016-11-16 13:24 ` [PATCH v4 2/3] " Pete Batard
2016-11-16 13:24 ` [PATCH v4 3/3] MdeModulePkg/EbcDxe: reorganize EBC header definitions Pete Batard
2016-11-17  2:32 ` [PATCH v4 0/3] MdeModulePkg/EbcDxe: add EBC Debugger Yao, Jiewen

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