18b144ea42
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10867 6f19259b-4bc3-4df7-8a09-765794883524
361 lines
8.0 KiB
ArmAsm
361 lines
8.0 KiB
ArmAsm
#------------------------------------------------------------------------------
|
|
#
|
|
# Copyright (c) 2010, 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)
|
|
|
|
.data
|
|
|
|
ASM_PFX(ExceptionStubHeaderSize): .word ASM_PFX(Exception1Handle) - ASM_PFX(Exception0Handle)
|
|
|
|
.text
|
|
|
|
ASM_PFX(Exception0Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $0, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception1Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $1, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception2Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $2, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception3Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $3, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception4Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $4, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception5Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $5, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception6Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $6, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception7Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $7, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception8Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $8, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception9Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $9, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception10Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $10, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception11Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $11, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception12Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $12, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception13Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $13, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception14Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $14, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception15Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $15, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception16Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $16, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception17Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $17, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception18Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $18, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
ASM_PFX(Exception19Handle):
|
|
cli
|
|
pushl %eax
|
|
mov $19, %eax
|
|
jmp ASM_PFX(CommonEntry)
|
|
|
|
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;
|
|
movl %cr4, %eax
|
|
orl $0x208,%eax
|
|
movl %eax, %cr4
|
|
pushl %eax
|
|
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
|
|
.byte 0x0f, 0xae, 0x07 # fxsave [edi]
|
|
|
|
## Clear Direction Flag
|
|
cld
|
|
|
|
## Prepare parameter and call C function
|
|
pushl %esp
|
|
pushl %ebx
|
|
call ASM_PFX(InterruptProcess)
|
|
addl $8,%esp
|
|
|
|
## FX_SAVE_STATE_IA32 FxSaveState;
|
|
movl %esp,%esi
|
|
.byte 0x0f, 0xae, 0x0e # fxrstor [esi]
|
|
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
|
|
|