SourceLevelDebugPkg DebugAgentLib: Convert Ia32/AsmFuncs.asm

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/AsmFuncs.asm to Ia32/AsmFuncs.nasm.
And, manually update the wrong replacement with 0H.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>

diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.nasm b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.nasm
new file mode 100644 (file)
index 0000000..ac057a6
--- /dev/null
+++ b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.nasm
@@ -0,0 +1,419 @@
+;------------------------------------------------------------------------------\r
+;\r
+; Copyright (c) 2010 - 2015, 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
+; 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
+;\r
+; Module Name:\r
+;\r
+;   AsmFuncs.nasm\r
+;\r
+; Abstract:\r
+;\r
+;   Debug interrupt handle functions.\r
+;\r
+;------------------------------------------------------------------------------\r
+\r
+#include "DebugException.h"\r
+\r
+;\r
+; InterruptProcess()\r
+;\r
+extern ASM_PFX(InterruptProcess)\r
+\r
+global ASM_PFX(Exception0Handle)\r
+global ASM_PFX(TimerInterruptHandle)\r
+global ASM_PFX(ExceptionStubHeaderSize)\r
+\r
+%macro AGENT_HANDLER_SIGNATURE 0\r
+  db   0x41, 0x47, 0x54, 0x48       ; SIGNATURE_32('A','G','T','H')\r
+%endmacro\r
+\r
+SECTION .data\r
+\r
+ASM_PFX(ExceptionStubHeaderSize): DD Exception1Handle - ASM_PFX(Exception0Handle)\r
+CommonEntryAddr: DD CommonEntry\r
+\r
+SECTION .text\r
+\r
+AGENT_HANDLER_SIGNATURE\r
+ASM_PFX(Exception0Handle):\r
+    cli\r
+    push    eax\r
+    mov     eax, 0\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception1Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 1\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception2Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 2\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception3Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 3\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception4Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 4\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception5Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 5\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception6Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 6\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception7Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 7\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception8Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 8\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception9Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 9\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception10Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 10\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception11Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 11\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception12Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 12\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception13Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 13\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception14Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 14\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception15Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 15\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception16Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 16\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception17Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 17\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception18Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 18\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+Exception19Handle:\r
+    cli\r
+    push    eax\r
+    mov     eax, 19\r
+    jmp     dword [CommonEntryAddr]\r
+AGENT_HANDLER_SIGNATURE\r
+ASM_PFX(TimerInterruptHandle):\r
+    cli\r
+    push    eax\r
+    mov     eax, 32\r
+    jmp     dword [CommonEntryAddr]\r
+\r
+CommonEntry:\r
+;\r
+; +---------------------+\r
+; +    EFlags           +\r
+; +---------------------+\r
+; +    CS               +\r
+; +---------------------+\r
+; +    EIP              +\r
+; +---------------------+\r
+; +    Error Code       +\r
+; +---------------------+\r
+; + EAX / Vector Number +\r
+; +---------------------+\r
+; +    EBP              +\r
+; +---------------------+ <-- EBP\r
+;\r
+    cmp     eax, DEBUG_EXCEPT_DOUBLE_FAULT\r
+    je      NoExtrPush\r
+    cmp     eax, DEBUG_EXCEPT_INVALID_TSS\r
+    je      NoExtrPush\r
+    cmp     eax, DEBUG_EXCEPT_SEG_NOT_PRESENT\r
+    je      NoExtrPush\r
+    cmp     eax, DEBUG_EXCEPT_STACK_FAULT\r
+    je      NoExtrPush\r
+    cmp     eax, DEBUG_EXCEPT_GP_FAULT\r
+    je      NoExtrPush\r
+    cmp     eax, DEBUG_EXCEPT_PAGE_FAULT\r
+    je      NoExtrPush\r
+    cmp     eax, DEBUG_EXCEPT_ALIGNMENT_CHECK\r
+    je      NoExtrPush\r
+\r
+    push    dword [esp]\r
+    mov     dword [esp + 4], 0\r
+\r
+NoExtrPush:\r
+\r
+    push    ebp\r
+    mov     ebp, esp        ; save esp in ebp\r
+    ;\r
+    ; Make stack 16-byte alignment to make sure save fxrstor later\r
+    ;\r
+    and     esp, 0xfffffff0\r
+    sub     esp, 12\r
+\r
+    ; store UINT32  Edi, Esi, Ebp, Ebx, Edx, Ecx, Eax;\r
+    push    dword [ebp + 4]  ; original eax\r
+    push    ebx\r
+    push    ecx\r
+    push    edx\r
+    mov     ebx, eax         ; save vector in ebx\r
+    mov     eax, ebp\r
+    add     eax, 4 * 6\r
+    push    eax              ; original ESP\r
+    push    dword [ebp]  ; EBP\r
+    push    esi\r
+    push    edi\r
+\r
+    ;; UINT32  Cr0, Cr1, Cr2, Cr3, Cr4;\r
+    ;; insure FXSAVE/FXRSTOR is enabled in CR4...\r
+    ;; ... while we're at it, make sure DE is also enabled...\r
+    mov     eax, 1\r
+    push    ebx         ; temporarily save value of ebx on stack\r
+    cpuid               ; use CPUID to determine if FXSAVE/FXRESTOR and\r
+                        ; DE are supported\r
+    pop     ebx         ; retore value of ebx that was overwritten by CPUID\r
+    mov     eax, cr4\r
+    push    eax         ; push cr4 firstly\r
+    test    edx, BIT24  ; Test for FXSAVE/FXRESTOR support\r
+    jz      .0\r
+    or      eax, BIT9   ; Set CR4.OSFXSR\r
+.0:\r
+    test    edx, BIT2   ; Test for Debugging Extensions support\r
+    jz      .1\r
+    or      eax, BIT3   ; Set CR4.DE\r
+.1:\r
+    mov     cr4, eax\r
+    mov     eax, cr3\r
+    push    eax\r
+    mov     eax, cr2\r
+    push    eax\r
+    push    0         ; cr0 will not saved???\r
+    mov     eax, cr0\r
+    push    eax\r
+\r
+    xor     ecx, ecx\r
+    mov     ecx, Ss\r
+    push    ecx\r
+    mov     ecx, Cs\r
+    push    ecx\r
+    mov     ecx, Ds\r
+    push    ecx\r
+    mov     ecx, Es\r
+    push    ecx\r
+    mov     ecx, Fs\r
+    push    ecx\r
+    mov     ecx, Gs\r
+    push    ecx\r
+\r
+    ;; EIP\r
+    mov     ecx, [ebp + 4 * 3] ; EIP\r
+    push    ecx\r
+\r
+    ;; UINT32  Gdtr[2], Idtr[2];\r
+    sub  esp, 8\r
+    sidt [esp]\r
+    sub  esp, 8\r
+    sgdt [esp]\r
+\r
+    ;; UINT32  Ldtr, Tr;\r
+    xor  eax, eax\r
+    str  ax\r
+    push eax\r
+    sldt ax\r
+    push eax\r
+\r
+    ;; EFlags\r
+    mov     ecx, [ebp + 4 * 5]\r
+    push    ecx\r
+\r
+    ;; UINT32  Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;\r
+    mov     eax, dr7\r
+    push    eax\r
+\r
+    ;; clear Dr7 while executing debugger itself\r
+    xor     eax, eax\r
+    mov     dr7, eax\r
+\r
+    ;; Dr6\r
+    mov     eax, dr6\r
+    push    eax\r
+\r
+    ;; insure all status bits in dr6 are clear...\r
+    xor     eax, eax\r
+    mov     dr6, eax\r
+\r
+    mov     eax, dr3\r
+    push    eax\r
+    mov     eax, dr2\r
+    push    eax\r
+    mov     eax, dr1\r
+    push    eax\r
+    mov     eax, dr0\r
+    push    eax\r
+\r
+    ;; Clear Direction Flag\r
+    cld\r
+\r
+    ;; FX_SAVE_STATE_IA32 FxSaveState;\r
+    sub     esp, 512\r
+    mov     edi, esp\r
+    ;; Clear the buffer\r
+    xor     eax, eax\r
+    mov     ecx, 128 ;= 512 / 4\r
+    rep     stosd\r
+    mov     edi, esp\r
+\r
+    test    edx, BIT24  ; Test for FXSAVE/FXRESTOR support.\r
+                        ; edx still contains result from CPUID above\r
+    jz      .2\r
+    db 0xf, 0xae, 00000111y ;fxsave [edi]\r
+.2:\r
+\r
+    ;; save the exception data\r
+    push    dword [ebp + 8]\r
+\r
+    ; call the C interrupt process function\r
+    push    esp     ; Structure\r
+    push    ebx     ; vector\r
+    call    ASM_PFX(InterruptProcess)\r
+    add     esp, 8\r
+\r
+    ; skip the exception data\r
+    add     esp, 4\r
+\r
+    ;; FX_SAVE_STATE_IA32 FxSaveState;\r
+    mov     esi, esp\r
+    mov     eax, 1\r
+    cpuid               ; use CPUID to determine if FXSAVE/FXRESTOR are supported\r
+    test    edx, BIT24  ; Test for FXSAVE/FXRESTOR support\r
+    jz      .3\r
+    db 0xf, 0xae, 00001110y ; fxrstor [esi]\r
+.3:\r
+    add esp, 512\r
+\r
+    ;; UINT32  Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;\r
+    pop     eax\r
+    mov     dr0, eax\r
+    pop     eax\r
+    mov     dr1, eax\r
+    pop     eax\r
+    mov     dr2, eax\r
+    pop     eax\r
+    mov     dr3, eax\r
+    ;; skip restore of dr6.  We cleared dr6 during the context save.\r
+    add     esp, 4\r
+    pop     eax\r
+    mov     dr7, eax\r
+\r
+    ;; set EFlags\r
+    pop     dword [ebp + 4 * 5]  ; set EFLAGS in stack\r
+\r
+    ;; UINT32  Ldtr, Tr;\r
+    ;; UINT32  Gdtr[2], Idtr[2];\r
+    ;; Best not let anyone mess with these particular registers...\r
+    add     esp, 24\r
+\r
+    ;; UINT32  Eip;\r
+    pop     dword [ebp + 4 * 3]   ; set EIP in stack\r
+\r
+    ;; UINT32  Gs, Fs, Es, Ds, Cs, Ss;\r
+    ;; NOTE - modified segment registers could hang the debugger...  We\r
+    ;;        could attempt to insulate ourselves against this possibility,\r
+    ;;        but that poses risks as well.\r
+    ;;\r
+    pop     gs\r
+    pop     fs\r
+    pop     es\r
+    pop     ds\r
+    pop     dword [ebp + 4 * 4]    ; set CS in stack\r
+    pop     ss\r
+\r
+    ;; UINT32  Cr0, Cr1, Cr2, Cr3, Cr4;\r
+    pop     eax\r
+    mov     cr0, eax\r
+    add     esp, 4    ; skip for Cr1\r
+    pop     eax\r
+    mov     cr2, eax\r
+    pop     eax\r
+    mov     cr3, eax\r
+    pop     eax\r
+    mov     cr4, eax\r
+\r
+    ;; restore general register\r
+    pop     edi\r
+    pop     esi\r
+    pop     dword [ebp]         ; save updated ebp\r
+    pop     dword [ebp + 4]     ; save updated esp\r
+    pop     edx\r
+    pop     ecx\r
+    pop     ebx\r
+    pop     eax\r
+\r
+    mov     esp, ebp\r
+    pop     ebp         ; restore ebp maybe updated\r
+    pop     esp         ; restore esp maybe updated\r
+    sub     esp, 4 * 3  ; restore interupt pushced stack\r
+\r
+    iretd\r
+\r