From 8cc26df4a60ec3a3b7f9d58ccefc12a1a5b6e199 Mon Sep 17 00:00:00 2001
From: Jeff Fan <jeff.fan@intel.com>
Date: Fri, 22 Nov 2013 06:30:01 +0000
Subject: 1. DebugAgentLib will install reserved vector table to persist
 vectors. 2. Update PeCoffExtraActionLib to detect if debug agent initialized
 or not by checking each IDT entry instead of whole IDT table.

Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14886 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm  | 27 ++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm')

diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm
index c80a33ba6c..9b219fc07d 100644
--- a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm
+++ b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm
@@ -32,6 +32,10 @@ InterruptProcess                 PROTO   C
 
 public    Exception0Handle, TimerInterruptHandle, ExceptionStubHeaderSize
 
+AGENT_HANDLER_SIGNATURE  MACRO
+  db   41h, 47h, 54h, 48h       ; SIGNATURE_32('A','G','T','H')
+ENDM
+
 .data
 
 ExceptionStubHeaderSize   DW    Exception1Handle - Exception0Handle
@@ -39,108 +43,127 @@ CommonEntryAddr           DD    CommonEntry
 
 .code
 
-db   41h, 47h, 54h, 48h  ; AGENT_HANDLER_SIGNATURE     SIGNATURE_32('A','G','T','H')
+AGENT_HANDLER_SIGNATURE
 Exception0Handle:
     cli
     push    eax
     mov     eax, 0
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception1Handle:
     cli
     push    eax
     mov     eax, 1
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception2Handle:
     cli
     push    eax
     mov     eax, 2
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception3Handle:
     cli
     push    eax
     mov     eax, 3
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception4Handle:
     cli
     push    eax
     mov     eax, 4
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception5Handle:
     cli
     push    eax
     mov     eax, 5
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception6Handle:
     cli
     push    eax
     mov     eax, 6
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception7Handle:
     cli
     push    eax
     mov     eax, 7
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception8Handle:
     cli
     push    eax
     mov     eax, 8
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception9Handle:
     cli
     push    eax
     mov     eax, 9
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception10Handle:
     cli
     push    eax
     mov     eax, 10
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception11Handle:
     cli
     push    eax
     mov     eax, 11
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception12Handle:
     cli
     push    eax
     mov     eax, 12
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception13Handle:
     cli
     push    eax
     mov     eax, 13
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception14Handle:
     cli
     push    eax
     mov     eax, 14
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception15Handle:
     cli
     push    eax
     mov     eax, 15
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception16Handle:
     cli
     push    eax
     mov     eax, 16
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception17Handle:
     cli
     push    eax
     mov     eax, 17
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception18Handle:
     cli
     push    eax
     mov     eax, 18
     jmp     dword ptr [CommonEntryAddr]
+AGENT_HANDLER_SIGNATURE
 Exception19Handle:
     cli
     push    eax
     mov     eax, 19
     jmp     dword ptr [CommonEntryAddr]
-
+AGENT_HANDLER_SIGNATURE
 TimerInterruptHandle:
     cli
     push    eax
-- 
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