diff options
Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.S')
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.S | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.S b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.S deleted file mode 100644 index 30d279e80d..0000000000 --- a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/Ia32/AsmFuncs.S +++ /dev/null @@ -1,415 +0,0 @@ -#------------------------------------------------------------------------------
-#
-# Copyright (c) 2010 - 2018, 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.S
-#
-# Abstract:
-#
-# Debug interrupt handle functions.
-#
-#------------------------------------------------------------------------------
-
-#include "DebugException.h"
-
-ASM_GLOBAL ASM_PFX(InterruptProcess)
-ASM_GLOBAL ASM_PFX(Exception0Handle)
-ASM_GLOBAL ASM_PFX(ExceptionStubHeaderSize)
-ASM_GLOBAL ASM_PFX(TimerInterruptHandle)
-ASM_GLOBAL ASM_PFX(CommonEntry)
-
-.macro AGENT_HANDLER_SIGNATURE
- .byte 0x41, 0x47, 0x54, 0x48 # AGENT_HANDLER_SIGNATURE SIGNATURE_32('A','G','T','H')
-.endm
-
-.data
-
-ASM_PFX(ExceptionStubHeaderSize): .long ASM_PFX(Exception1Handle) - ASM_PFX(Exception0Handle)
-
-.text
-
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception0Handle):
- cli
- pushl %eax
- mov $0, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception1Handle):
- cli
- pushl %eax
- mov $1, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception2Handle):
- cli
- pushl %eax
- mov $2, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception3Handle):
- cli
- pushl %eax
- mov $3, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception4Handle):
- cli
- pushl %eax
- mov $4, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception5Handle):
- cli
- pushl %eax
- mov $5, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception6Handle):
- cli
- pushl %eax
- mov $6, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception7Handle):
- cli
- pushl %eax
- mov $7, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception8Handle):
- cli
- pushl %eax
- mov $8, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception9Handle):
- cli
- pushl %eax
- mov $9, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception10Handle):
- cli
- pushl %eax
- mov $10, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception11Handle):
- cli
- pushl %eax
- mov $11, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception12Handle):
- cli
- pushl %eax
- mov $12, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception13Handle):
- cli
- pushl %eax
- mov $13, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception14Handle):
- cli
- pushl %eax
- mov $14, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception15Handle):
- cli
- pushl %eax
- mov $15, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception16Handle):
- cli
- pushl %eax
- mov $16, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception17Handle):
- cli
- pushl %eax
- mov $17, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception18Handle):
- cli
- pushl %eax
- mov $18, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(Exception19Handle):
- cli
- pushl %eax
- mov $19, %eax
- jmp ASM_PFX(CommonEntry)
-AGENT_HANDLER_SIGNATURE
-ASM_PFX(TimerInterruptHandle):
- cli
- pushl %eax
- mov $32, %eax
- jmp ASM_PFX(CommonEntry)
-
-
-ASM_PFX(CommonEntry):
-
-#---------------------------------------;
-# _CommonEntry ;
-#----------------------------------------------------------------------------;
-# The follow algorithm is used for the common interrupt routine.
-# Entry from each interrupt with a push eax and eax=interrupt number
-#
-# +---------------------+
-# + EFlags +
-# +---------------------+
-# + CS +
-# +---------------------+
-# + EIP +
-# +---------------------+
-# + Error Code +
-# +---------------------+
-# + EAX / Vector Number +
-# +---------------------+
-# + EBP +
-# +---------------------+ <-- EBP
-#
-
-# We need to determine if any extra data was pushed by the exception
- cmpl $DEBUG_EXCEPT_DOUBLE_FAULT, %eax
- je NoExtrPush
- cmpl $DEBUG_EXCEPT_INVALID_TSS, %eax
- je NoExtrPush
- cmpl $DEBUG_EXCEPT_SEG_NOT_PRESENT, %eax
- je NoExtrPush
- cmpl $DEBUG_EXCEPT_STACK_FAULT, %eax
- je NoExtrPush
- cmpl $DEBUG_EXCEPT_GP_FAULT, %eax
- je NoExtrPush
- cmpl $DEBUG_EXCEPT_PAGE_FAULT, %eax
- je NoExtrPush
- cmpl $DEBUG_EXCEPT_ALIGNMENT_CHECK, %eax
- je NoExtrPush
-
- pushl (%esp)
- movl $0, 4(%esp)
-
-NoExtrPush:
-
- pushl %ebp
- movl %esp,%ebp
-
- #
- # Align stack to make sure that EFI_FX_SAVE_STATE_IA32 of EFI_SYSTEM_CONTEXT_IA32
- # is 16-byte aligned
- #
- andl $0xfffffff0,%esp
- subl $12,%esp
-
-## UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
- pushl 0x4(%ebp)
- pushl %ebx
- pushl %ecx
- pushl %edx
- mov %eax, %ebx # save vector in ebx
- leal 24(%ebp),%ecx
- pushl %ecx # save original ESP
- pushl (%ebp)
- pushl %esi
- pushl %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 $1, %eax
- pushl %ebx # temporarily save value of ebx on stack
- cpuid # use CPUID to determine if FXSAVE/FXRESTOR
- # and DE are supported
- popl %ebx # retore value of ebx that was overwritten
- # by CPUID
- movl %cr4, %eax
- pushl %eax # push cr4 firstly
- testl $BIT24, %edx # Test for FXSAVE/FXRESTOR support
- jz L1
- orl $BIT9, %eax # Set CR4.OSFXSR
-L1:
- testl $BIT2, %edx # Test for Debugging Extensions support
- jz L2
- orl $BIT3, %eax # Set CR4.DE
-L2:
- movl %eax, %cr4
- movl %cr3, %eax
- pushl %eax
- movl %cr2, %eax
- pushl %eax
- xorl %eax,%eax
- pushl %eax
- movl %cr0, %eax
- pushl %eax
-
-## UINT32 Gs, Fs, Es, Ds, Cs, Ss;
- movl %ss,%eax
- pushl %eax
- movzwl 16(%ebp), %eax
- pushl %eax
- movl %ds,%eax
- pushl %eax
- movl %es,%eax
- pushl %eax
- movl %fs,%eax
- pushl %eax
- movl %gs,%eax
- pushl %eax
-
-## UINT32 Eip;
- pushl 12(%ebp)
-
-## UINT32 Gdtr[2], Idtr[2];
- subl $8,%esp
- sidt (%esp)
- subl $8,%esp
- sgdt (%esp)
-
-## UINT32 Ldtr, Tr;
- xorl %eax,%eax
- strl %eax
- pushl %eax
- sldtl %eax
- pushl %eax
-
-## UINT32 EFlags;
- pushl 20(%ebp)
-
-## UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- movl %dr7, %eax
- pushl %eax
-## clear Dr7 while executing debugger itself
- xorl %eax,%eax
- movl %eax, %dr7
-
- movl %dr6, %eax
- pushl %eax
-## insure all status bits in dr6 are clear...
- xorl %eax,%eax
- movl %eax, %dr6
-
- movl %dr3, %eax
- pushl %eax
- movl %dr2, %eax
- pushl %eax
- movl %dr1, %eax
- pushl %eax
- movl %dr0, %eax
- pushl %eax
-
-## FX_SAVE_STATE_IA32 FxSaveState;
- subl $512,%esp
- movl %esp,%edi
- testl $BIT24, %edx # Test for FXSAVE/FXRESTOR support.
- # edx still contains result from CPUID above
- jz L3
- .byte 0x0f, 0xae, 0x07 # fxsave [edi]
-L3:
-
-## save the exception data
- pushl 8(%esp)
-
-## Clear Direction Flag
- cld
-
-## Prepare parameter and call C function
- pushl %esp
- pushl %ebx
- call ASM_PFX(InterruptProcess)
- addl $8,%esp
-
-## skip the exception data
- addl $4,%esp
-
-## FX_SAVE_STATE_IA32 FxSaveState;
- movl %esp,%esi
- movl $1, %eax
- cpuid # use CPUID to determine if FXSAVE/FXRESTOR
- # are supported
- testl $BIT24, %edx # Test for FXSAVE/FXRESTOR support
- jz L4
- .byte 0x0f, 0xae, 0x0e # fxrstor [esi]
-L4:
- addl $512,%esp
-
-## UINT32 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
- popl %eax
- movl %eax, %dr0
- popl %eax
- movl %eax, %dr1
- popl %eax
- movl %eax, %dr2
- popl %eax
- movl %eax, %dr3
-## skip restore of dr6. We cleared dr6 during the context save.
- addl $4,%esp
- popl %eax
- movl %eax, %dr7
-
-## UINT32 EFlags;
- popl 20(%ebp)
-
-## UINT32 Ldtr, Tr;
-## UINT32 Gdtr[2], Idtr[2];
-## Best not let anyone mess with these particular registers...
- addl $24,%esp
-
-## UINT32 Eip;
- pop 12(%ebp)
-
-## 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.
-##
- popl %gs
- popl %fs
- popl %es
- popl %ds
- popl 16(%ebp)
- popl %ss
-
-## UINT32 Cr0, Cr1, Cr2, Cr3, Cr4;
- popl %eax
- movl %eax, %cr0
- addl $4,%esp # not for Cr1
- popl %eax
- movl %eax, %cr2
- popl %eax
- movl %eax, %cr3
- popl %eax
- movl %eax, %cr4
-
-## UINT32 Edi, Esi, Ebp, Esp, Ebx, Edx, Ecx, Eax;
- popl %edi
- popl %esi
- addl $4,%esp # not for ebp
- addl $4,%esp # not for esp
- popl %edx
- popl %ecx
- popl %ebx
- popl %eax
-
- movl %ebp,%esp
- popl %ebp
- addl $8,%esp # skip eax
- iretl
-
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