diff options
Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm')
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm deleted file mode 100644 index 44ed6f7710..0000000000 --- a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.asm +++ /dev/null @@ -1,422 +0,0 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2010 - 2015, 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.
-;
-; Module Name:
-;
-; AsmFuncs.asm
-;
-; Abstract:
-;
-; Debug interrupt handle functions.
-;
-;------------------------------------------------------------------------------
-
-#include "DebugException.h"
-
-.686p
-.xmm
-.model flat,c
-
-;
-; InterruptProcess()
-;
-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 DD Exception1Handle - Exception0Handle
-CommonEntryAddr DD CommonEntry
-
-.code
-
-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
- mov eax, 32
- jmp dword ptr [CommonEntryAddr]
-
-CommonEntry:
-;
-; +---------------------+
-; + EFlags +
-; +---------------------+
-; + CS +
-; +---------------------+
-; + EIP +
-; +---------------------+
-; + Error Code +
-; +---------------------+
-; + EAX / Vector Number +
-; +---------------------+
-; + EBP +
-; +---------------------+ <-- EBP
-;
- cmp eax, DEBUG_EXCEPT_DOUBLE_FAULT
- je NoExtrPush
- cmp eax, DEBUG_EXCEPT_INVALID_TSS
- je NoExtrPush
- cmp eax, DEBUG_EXCEPT_SEG_NOT_PRESENT
- je NoExtrPush
- cmp eax, DEBUG_EXCEPT_STACK_FAULT
- je NoExtrPush
- cmp eax, DEBUG_EXCEPT_GP_FAULT
- je NoExtrPush
- cmp eax, DEBUG_EXCEPT_PAGE_FAULT
- je NoExtrPush
- cmp eax, DEBUG_EXCEPT_ALIGNMENT_CHECK
- je NoExtrPush
-
- push [esp]
- mov dword ptr [esp + 4], 0
-
-NoExtrPush:
-
- push ebp
- mov ebp, esp ; save esp in ebp
- ;
- ; Make stack 16-byte alignment to make sure save fxrstor later
- ;
- and esp, 0fffffff0h
- sub esp, 12
-
- ; store UINT32 Edi, Esi, Ebp, Ebx, Edx, Ecx, Eax;
- push dword ptr [ebp + 4] ; original eax
- push ebx
- push ecx
- push edx
- mov ebx, eax ; save vector in ebx
- mov eax, ebp
- add eax, 4 * 6
- push eax ; original ESP
- push dword ptr [ebp] ; EBP
- push esi
- push edi
-
- ;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
- ;; insure FXSAVE/FXRSTOR is enabled in CR4...
- ;; ... while we're at it, make sure DE is also enabled...
- mov eax, 1
- push ebx ; temporarily save value of ebx on stack
- cpuid ; use CPUID to determine if FXSAVE/FXRESTOR and
- ; DE are supported
- pop ebx ; retore value of ebx that was overwritten by CPUID
- mov eax, cr4
- push eax ; push cr4 firstly
- test edx, BIT24 ; Test for FXSAVE/FXRESTOR support
- jz @F
- or eax, BIT9 ; Set CR4.OSFXSR
-@@:
- test edx, BIT2 ; Test for Debugging Extensions support
- jz @F
- or eax, BIT3 ; Set CR4.DE
-@@:
- mov cr4, eax
- mov eax, cr3
- push eax
- mov eax, cr2
- push eax
- push 0 ; cr0 will not saved???
- mov eax, cr0
- push eax
-
- xor ecx, ecx
- mov ecx, Ss
- push ecx
- mov ecx, Cs
- push ecx
- mov ecx, Ds
- push ecx
- mov ecx, Es
- push ecx
- mov ecx, Fs
- push ecx
- mov ecx, Gs
- push ecx
-
- ;; EIP
- mov ecx, [ebp + 4 * 3] ; EIP
- push ecx
-
- ;; UINT32 Gdtr[2], Idtr[2];
- sub esp, 8
- sidt fword ptr [esp]
- sub esp, 8
- sgdt fword ptr [esp]
-
- ;; UINT32 Ldtr, Tr;
- xor eax, eax
- str ax
- push eax
- sldt ax
- push eax
-
- ;; EFlags
- mov ecx, [ebp + 4 * 5]
- push ecx
-
- ;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- mov eax, dr7
- push eax
-
- ;; clear Dr7 while executing debugger itself
- xor eax, eax
- mov dr7, eax
-
- ;; Dr6
- mov eax, dr6
- push eax
-
- ;; insure all status bits in dr6 are clear...
- xor eax, eax
- mov dr6, eax
-
- mov eax, dr3
- push eax
- mov eax, dr2
- push eax
- mov eax, dr1
- push eax
- mov eax, dr0
- push eax
-
- ;; Clear Direction Flag
- cld
-
- ;; FX_SAVE_STATE_IA32 FxSaveState;
- sub esp, 512
- mov edi, esp
- ;; Clear the buffer
- xor eax, eax
- mov ecx, 128 ;= 512 / 4
- rep stosd
- mov edi, esp
-
- test edx, BIT24 ; Test for FXSAVE/FXRESTOR support.
- ; edx still contains result from CPUID above
- jz @F
- db 0fh, 0aeh, 00000111y ;fxsave [edi]
-@@:
-
- ;; save the exception data
- push dword ptr [ebp + 8]
-
- ; call the C interrupt process function
- push esp ; Structure
- push ebx ; vector
- call InterruptProcess
- add esp, 8
-
- ; skip the exception data
- add esp, 4
-
- ;; FX_SAVE_STATE_IA32 FxSaveState;
- mov esi, esp
- mov eax, 1
- cpuid ; use CPUID to determine if FXSAVE/FXRESTOR are supported
- test edx, BIT24 ; Test for FXSAVE/FXRESTOR support
- jz @F
- db 0fh, 0aeh, 00001110y ; fxrstor [esi]
-@@:
- add esp, 512
-
- ;; UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- pop eax
- mov dr0, eax
- pop eax
- mov dr1, eax
- pop eax
- mov dr2, eax
- pop eax
- mov dr3, eax
- ;; skip restore of dr6. We cleared dr6 during the context save.
- add esp, 4
- pop eax
- mov dr7, eax
-
- ;; set EFlags
- pop dword ptr [ebp + 4 * 5] ; set EFLAGS in stack
-
- ;; UINT32 Ldtr, Tr;
- ;; UINT32 Gdtr[2], Idtr[2];
- ;; Best not let anyone mess with these particular registers...
- add esp, 24
-
- ;; UINT32 Eip;
- pop dword ptr [ebp + 4 * 3] ; set EIP in stack
-
- ;; UINT32 Gs, Fs, Es, Ds, Cs, Ss;
- ;; NOTE - modified segment registers could hang the debugger... We
- ;; could attempt to insulate ourselves against this possibility,
- ;; but that poses risks as well.
- ;;
- pop gs
- pop fs
- pop es
- pop ds
- pop dword ptr [ebp + 4 * 4] ; set CS in stack
- pop ss
-
- ;; UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
- pop eax
- mov cr0, eax
- add esp, 4 ; skip for Cr1
- pop eax
- mov cr2, eax
- pop eax
- mov cr3, eax
- pop eax
- mov cr4, eax
-
- ;; restore general register
- pop edi
- pop esi
- pop dword ptr [ebp] ; save updated ebp
- pop dword ptr [ebp + 4] ; save updated esp
- pop edx
- pop ecx
- pop ebx
- pop eax
-
- mov esp, ebp
- pop ebp ; restore ebp maybe updated
- pop esp ; restore esp maybe updated
- sub esp, 4 * 3 ; restore interupt pushced stack
-
- iretd
-
-END
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