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- Switch 4, 5, 6 to common ASM dispatcher as well.

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svn path=/trunk/; revision=23633
This commit is contained in:
Alex Ionescu 2006-08-21 02:32:08 +00:00
parent 4bb966cd9a
commit 162d423eff
2 changed files with 109 additions and 30 deletions
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3
reactos/include/ndk/asm.h
View file

@ -383,6 +383,9 @@ Author:
#define STATUS_ACCESS_VIOLATION 0xC0000005
#define STATUS_INVALID_SYSTEM_SERVICE 0xC000001C
#define STATUS_NO_CALLBACK_ACTIVE 0xC0000258
#define STATUS_ARRAY_BOUNDS_EXCEEDED 0xC000008C
#define STATUS_ILLEGAL_INSTRUCTION 0xC000001D
#define STATUS_BREAKPOINT 0x80000003
#define STATUS_SINGLE_STEP 0x80000004
#define STATUS_INTEGER_DIVIDE_BY_ZERO 0xC0000094
#define STATUS_INTEGER_OVERFLOW 0xC0000095

136
reactos/ntoskrnl/ke/i386/trap.s
View file

@ -770,7 +770,7 @@ _KiTrap0:
/* Check if the frame was from kernelmode */
test word ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
jz EnableInterrupts
jz SendException
/* Check the old mode */
cmp word ptr [ebp+KTRAP_FRAME_CS], KGDT_R3_CODE + RPL_MASK
@ -849,6 +849,7 @@ _KiTrap2:
call _KeBugCheckEx@20
.endfunc
.func KiTrap3
_KiTrap3:
/* Push error code */
push 0
@ -856,19 +857,47 @@ _KiTrap3:
/* Enter trap */
TRAP_PROLOG(3)
/* Call the C exception handler */
push 3
push ebp
call _KiTrapHandler
add esp, 8
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
jnz V86Int3
/* Check for v86 recovery */
cmp eax, 1
/* Check if the frame was from kernelmode */
test word ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
jz PrepInt3
/* Return to caller */
jne _Kei386EoiHelper@0
jmp _KiV86Complete
/* Check the old mode */
cmp word ptr [ebp+KTRAP_FRAME_CS], KGDT_R3_CODE + RPL_MASK
jne V86Int3
EnableInterrupts3:
/* Enable interrupts for user-mode */
sti
PrepInt3:
/* Prepare the exception */
mov esi, ecx
mov edi, edx
mov edx, eax
/* Setup EIP, NTSTATUS and parameter count, then dispatch */
mov ebx, [ebp+KTRAP_FRAME_EIP]
dec ebx
mov eax, STATUS_BREAKPOINT
mov ecx, 3
call _CommonDispatchException
V86Int3:
/* Check if this is a VDM process */
mov ebx, [fs:KPCR_CURRENT_THREAD]
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
jz EnableInterrupts3
/* We don't support VDM! */
int 3
.endfunc
.func KiTrap4
_KiTrap4:
/* Push error code */
push 0
@ -876,19 +905,39 @@ _KiTrap4:
/* Enter trap */
TRAP_PROLOG(4)
/* Call the C exception handler */
push 4
push ebp
call _KiTrapHandler
add esp, 8
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
jnz V86Int4
/* Check for v86 recovery */
cmp eax, 1
/* Check if the frame was from kernelmode */
test word ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
jz SendException4
/* Return to caller */
jne _Kei386EoiHelper@0
jmp _KiV86Complete
/* Check the old mode */
cmp word ptr [ebp+KTRAP_FRAME_CS], KGDT_R3_CODE + RPL_MASK
jne VdmCheck4
SendException4:
/* Re-enable interrupts for user-mode and send the exception */
sti
mov eax, STATUS_INTEGER_OVERFLOW
mov ebx, [ebp+KTRAP_FRAME_EIP]
dec ebx
jmp _DispatchNoParam
VdmCheck4:
/* Check if this is a VDM process */
mov ebx, [fs:KPCR_CURRENT_THREAD]
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
jz SendException4
/* We don't support this yet! */
V86Int4:
int 3
.endfunc
.func KiTrap5
_KiTrap5:
/* Push error code */
push 0
@ -896,18 +945,45 @@ _KiTrap5:
/* Enter trap */
TRAP_PROLOG(5)
/* Call the C exception handler */
/* Check for V86 */
test dword ptr [ebp+KTRAP_FRAME_EFLAGS], EFLAGS_V86_MASK
jnz V86Int5
/* Check if the frame was from kernelmode */
test word ptr [ebp+KTRAP_FRAME_CS], MODE_MASK
jnz CheckMode
/* It did, and this should never happen */
push 0
push 0
push 0
push 5
push ebp
call _KiTrapHandler
add esp, 8
push UNEXPECTED_KERNEL_MODE_TRAP
call _KeBugCheckEx@20
/* Check for v86 recovery */
cmp eax, 1
/* Check the old mode */
CheckMode:
cmp word ptr [ebp+KTRAP_FRAME_CS], KGDT_R3_CODE + RPL_MASK
jne VdmCheck5
/* Return to caller */
jne _Kei386EoiHelper@0
jmp _KiV86Complete
/* Re-enable interrupts for user-mode and send the exception */
SendException5:
sti
mov eax, STATUS_ARRAY_BOUNDS_EXCEEDED
mov ebx, [ebp+KTRAP_FRAME_EIP]
jmp _DispatchNoParam
VdmCheck5:
/* Check if this is a VDM process */
mov ebx, [fs:KPCR_CURRENT_THREAD]
mov ebx, [ebx+KTHREAD_APCSTATE_PROCESS]
cmp dword ptr [ebx+EPROCESS_VDM_OBJECTS], 0
jz SendException5
/* We don't support this yet! */
V86Int5:
int 3
.endfunc
_KiTrap6:
/* Push error code */