mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 18:15:11 +00:00
221 lines
8.1 KiB
ArmAsm
221 lines
8.1 KiB
ArmAsm
/*
|
|
* FILE: ntoskrnl/ke/i386/trap.s
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PURPOSE: System Traps, Entrypoints and Exitpoints
|
|
* PROGRAMMER: Alex Ionescu (alex@relsoft.net)
|
|
* Timo Kreuzer (timo.kreuzer@reactos.org)
|
|
* NOTE: See asmmacro.S for the shared entry/exit code.
|
|
*/
|
|
|
|
/* INCLUDES ******************************************************************/
|
|
|
|
#include <asm.inc>
|
|
#include <ks386.inc>
|
|
#include <internal/i386/asmmacro.S>
|
|
|
|
MACRO(GENERATE_IDT_STUB, Vector)
|
|
idt _KiUnexpectedInterrupt&Vector, INT_32_DPL0
|
|
ENDM
|
|
|
|
MACRO(GENERATE_INT_HANDLER, Vector)
|
|
//.func KiUnexpectedInterrupt&Vector
|
|
_KiUnexpectedInterrupt&Vector:
|
|
/* This is a push instruction with 8bit operand. Since the instruction
|
|
sign extends the value to 32 bits, we need to offset it */
|
|
push (Vector - 128)
|
|
jmp _KiEndUnexpectedRange@0
|
|
//.endfunc
|
|
ENDM
|
|
|
|
/* GLOBALS *******************************************************************/
|
|
|
|
.data
|
|
ASSUME nothing
|
|
|
|
.align 16
|
|
|
|
PUBLIC _KiIdt
|
|
_KiIdt:
|
|
/* This is the Software Interrupt Table that we handle in this file: */
|
|
idt _KiTrap00, INT_32_DPL0 /* INT 00: Divide Error (#DE) */
|
|
idt _KiTrap01, INT_32_DPL0 /* INT 01: Debug Exception (#DB) */
|
|
idt _KiTrap02, INT_32_DPL0 /* INT 02: NMI Interrupt */
|
|
idt _KiTrap03, INT_32_DPL3 /* INT 03: Breakpoint Exception (#BP) */
|
|
idt _KiTrap04, INT_32_DPL3 /* INT 04: Overflow Exception (#OF) */
|
|
idt _KiTrap05, INT_32_DPL0 /* INT 05: BOUND Range Exceeded (#BR) */
|
|
idt _KiTrap06, INT_32_DPL0 /* INT 06: Invalid Opcode Code (#UD) */
|
|
idt _KiTrap07, INT_32_DPL0 /* INT 07: Device Not Available (#NM) */
|
|
idt _KiTrap08, INT_32_DPL0 /* INT 08: Double Fault Exception (#DF) */
|
|
idt _KiTrap09, INT_32_DPL0 /* INT 09: RESERVED */
|
|
idt _KiTrap0A, INT_32_DPL0 /* INT 0A: Invalid TSS Exception (#TS) */
|
|
idt _KiTrap0B, INT_32_DPL0 /* INT 0B: Segment Not Present (#NP) */
|
|
idt _KiTrap0C, INT_32_DPL0 /* INT 0C: Stack Fault Exception (#SS) */
|
|
idt _KiTrap0D, INT_32_DPL0 /* INT 0D: General Protection (#GP) */
|
|
idt _KiTrap0E, INT_32_DPL0 /* INT 0E: Page-Fault Exception (#PF) */
|
|
idt _KiTrap0F, INT_32_DPL0 /* INT 0F: RESERVED */
|
|
idt _KiTrap10, INT_32_DPL0 /* INT 10: x87 FPU Error (#MF) */
|
|
idt _KiTrap11, INT_32_DPL0 /* INT 11: Align Check Exception (#AC) */
|
|
idt _KiTrap0F, INT_32_DPL0 /* INT 12: Machine Check Exception (#MC)*/
|
|
idt _KiTrap0F, INT_32_DPL0 /* INT 13: SIMD FPU Exception (#XF) */
|
|
REPEAT 21
|
|
idt _KiTrap0F, INT_32_DPL0 /* INT 14-28: UNDEFINED INTERRUPTS */
|
|
ENDR
|
|
idt _KiRaiseSecurityCheckFailure, INT_32_DPL3
|
|
/* INT 29: Handler for __fastfail */
|
|
idt _KiGetTickCount, INT_32_DPL3 /* INT 2A: Get Tick Count Handler */
|
|
idt _KiCallbackReturn, INT_32_DPL3 /* INT 2B: User-Mode Callback Return */
|
|
idt _KiRaiseAssertion, INT_32_DPL3 /* INT 2C: Debug Assertion Handler */
|
|
idt _KiDebugService, INT_32_DPL3 /* INT 2D: Debug Service Handler */
|
|
idt _KiSystemService, INT_32_DPL3 /* INT 2E: System Call Service Handler */
|
|
idt _KiTrap0F, INT_32_DPL0 /* INT 2F: RESERVED */
|
|
i = HEX(30)
|
|
REPEAT 208
|
|
GENERATE_IDT_STUB %i
|
|
i = i + 1
|
|
ENDR
|
|
|
|
PUBLIC _KiIdtDescriptor
|
|
_KiIdtDescriptor:
|
|
.short 0
|
|
.short HEX(7FF)
|
|
.long _KiIdt
|
|
|
|
PUBLIC _KiUnexpectedEntrySize
|
|
_KiUnexpectedEntrySize:
|
|
.long _KiUnexpectedInterrupt49 - _KiUnexpectedInterrupt48
|
|
|
|
/******************************************************************************/
|
|
.code
|
|
|
|
PUBLIC _KiStartUnexpectedRange@0
|
|
_KiStartUnexpectedRange@0:
|
|
i = HEX(30)
|
|
REPEAT 208
|
|
GENERATE_INT_HANDLER %i
|
|
i = i + 1
|
|
ENDR
|
|
|
|
TRAP_ENTRY KiTrap00, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap01, KI_PUSH_FAKE_ERROR_CODE
|
|
TASK_ENTRY KiTrap02, KI_NMI
|
|
TRAP_ENTRY KiTrap03, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap04, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap05, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap06, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap07, KI_PUSH_FAKE_ERROR_CODE
|
|
TASK_ENTRY KiTrap08, 0
|
|
TRAP_ENTRY KiTrap09, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap0A, 0
|
|
TRAP_ENTRY KiTrap0B, 0
|
|
TRAP_ENTRY KiTrap0C, 0
|
|
TRAP_ENTRY KiTrap0D, 0
|
|
TRAP_ENTRY KiTrap0E, 0
|
|
TRAP_ENTRY KiTrap0F, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap10, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap11, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiTrap13, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiRaiseSecurityCheckFailure, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiGetTickCount, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiCallbackReturn, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiRaiseAssertion, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiDebugService, KI_PUSH_FAKE_ERROR_CODE
|
|
TRAP_ENTRY KiUnexpectedInterruptTail, 0
|
|
|
|
ALIGN 4
|
|
EXTERN @KiInterruptTemplateHandler@8:PROC
|
|
PUBLIC _KiInterruptTemplate
|
|
_KiInterruptTemplate:
|
|
KiEnterTrap KI_PUSH_FAKE_ERROR_CODE
|
|
PUBLIC _KiInterruptTemplate2ndDispatch
|
|
_KiInterruptTemplate2ndDispatch:
|
|
mov edx, 0
|
|
PUBLIC _KiInterruptTemplateObject
|
|
_KiInterruptTemplateObject:
|
|
mov eax, offset @KiInterruptTemplateHandler@8
|
|
jmp eax
|
|
PUBLIC _KiInterruptTemplateDispatch
|
|
_KiInterruptTemplateDispatch:
|
|
|
|
EXTERN @KiSystemServiceHandler@8:PROC
|
|
PUBLIC _KiSystemService
|
|
.PROC _KiSystemService
|
|
FPO 0, 0, 0, 0, 1, FRAME_TRAP
|
|
KiEnterTrap (KI_PUSH_FAKE_ERROR_CODE OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
|
|
KiCallHandler @KiSystemServiceHandler@8
|
|
.ENDP
|
|
|
|
PUBLIC _KiFastCallEntry
|
|
.PROC _KiFastCallEntry
|
|
FPO 0, 0, 0, 0, 1, FRAME_TRAP
|
|
KiEnterTrap (KI_FAST_SYSTEM_CALL OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
|
|
KiCallHandler @KiSystemServiceHandler@8
|
|
.ENDP
|
|
|
|
PUBLIC _KiFastCallEntryWithSingleStep
|
|
.PROC _KiFastCallEntryWithSingleStep
|
|
FPO 0, 0, 0, 0, 1, FRAME_TRAP
|
|
KiEnterTrap (KI_FAST_SYSTEM_CALL OR KI_NONVOLATILES_ONLY OR KI_DONT_SAVE_SEGS)
|
|
or dword ptr [ecx + KTRAP_FRAME_EFLAGS], EFLAGS_TF
|
|
KiCallHandler @KiSystemServiceHandler@8
|
|
.ENDP
|
|
|
|
PUBLIC _KiEndUnexpectedRange@0
|
|
_KiEndUnexpectedRange@0:
|
|
add dword ptr[esp], 128
|
|
jmp _KiUnexpectedInterruptTail
|
|
|
|
|
|
/* EXIT CODE *****************************************************************/
|
|
|
|
KiTrapExitStub KiSystemCallReturn, (KI_RESTORE_EAX OR KI_RESTORE_EFLAGS OR KI_EXIT_JMP)
|
|
KiTrapExitStub KiSystemCallSysExitReturn, (KI_RESTORE_EAX OR KI_RESTORE_FS OR KI_RESTORE_EFLAGS OR KI_EXIT_SYSCALL)
|
|
KiTrapExitStub KiSystemCallTrapReturn, (KI_RESTORE_EAX OR KI_RESTORE_FS OR KI_EXIT_IRET)
|
|
|
|
KiTrapExitStub KiEditedTrapReturn, (KI_RESTORE_VOLATILES OR KI_RESTORE_EFLAGS OR KI_EDITED_FRAME OR KI_EXIT_RET)
|
|
KiTrapExitStub KiTrapReturn, (KI_RESTORE_VOLATILES OR KI_RESTORE_SEGMENTS OR KI_EXIT_IRET)
|
|
KiTrapExitStub KiTrapReturnNoSegments, (KI_RESTORE_VOLATILES OR KI_EXIT_IRET)
|
|
KiTrapExitStub KiTrapReturnNoSegmentsRet8,(KI_RESTORE_VOLATILES OR KI_RESTORE_EFLAGS OR KI_EXIT_RET8)
|
|
|
|
EXTERN _PsConvertToGuiThread@0:PROC
|
|
|
|
PUBLIC _KiConvertToGuiThread@0
|
|
_KiConvertToGuiThread@0:
|
|
|
|
/*
|
|
* Converting to a GUI thread safely updates ESP in-place as well as the
|
|
* current Thread->TrapFrame and EBP when KeSwitchKernelStack is called.
|
|
*
|
|
* However, PsConvertToGuiThread "helpfully" restores EBP to the original
|
|
* caller's value, since it is considered a nonvolatile register. As such,
|
|
* as soon as we're back after the conversion and we try to store the result
|
|
* which will probably be in some stack variable (EBP-based), we'll crash as
|
|
* we are touching the de-allocated non-expanded stack.
|
|
*
|
|
* Thus we need a way to update our EBP before EBP is touched, and the only
|
|
* way to guarantee this is to do the call itself in assembly, use the EAX
|
|
* register to store the result, fixup EBP, and then let the C code continue
|
|
* on its merry way.
|
|
*
|
|
*/
|
|
|
|
/* Save ebx */
|
|
push ebx
|
|
|
|
/* Calculate the stack frame offset in ebx */
|
|
mov ebx, ebp
|
|
sub ebx, esp
|
|
|
|
/* Call the worker function */
|
|
call _PsConvertToGuiThread@0
|
|
|
|
/* Adjust ebp to the new stack */
|
|
mov ebp, esp
|
|
add ebp, ebx
|
|
|
|
/* Restore ebx */
|
|
pop ebx
|
|
|
|
/* return to the caller */
|
|
ret
|
|
|
|
END
|