mirror of
https://github.com/reactos/reactos.git
synced 2025-06-23 12:20:17 +00:00
005f75bd61
RtlpBreakWithStatusInstruction is just a label for KD. On machines that have register calling conventions (basically all except x86), the `Status` parameter for `DbgBreakPointWithStatus` is stored in the first argument register. https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-dbgbreakpointwithstatus On the x64 platform, `DbgBreakPointWithStatus` only uses the ECX register and leaves EAX untouched. Verified on Windows.
68 lines
1.5 KiB
ArmAsm
68 lines
1.5 KiB
ArmAsm
/*
|
|
* COPYRIGHT: See COPYING in the top level directory
|
|
* PROJECT: ReactOS Run-Time Library
|
|
* PURPOSE: Debug Routines
|
|
* FILE: lib/rtl/amd64/debug_asm.S
|
|
* PROGRAMER: Timo Kreuzer (timo.kreuzer@reactos.org)
|
|
*/
|
|
|
|
#include <asm.inc>
|
|
|
|
/* FUNCTIONS ***************************************************************/
|
|
|
|
.code64
|
|
|
|
PUBLIC DbgUserBreakPoint
|
|
DbgUserBreakPoint:
|
|
PUBLIC DbgBreakPoint
|
|
.PROC DbgBreakPoint
|
|
.endprolog
|
|
int 3
|
|
ret
|
|
.ENDP
|
|
|
|
PUBLIC RtlpBreakWithStatusInstruction
|
|
RtlpBreakWithStatusInstruction:
|
|
PUBLIC DbgBreakPointWithStatus
|
|
.PROC DbgBreakPointWithStatus
|
|
.endprolog
|
|
int 3
|
|
ret
|
|
.ENDP
|
|
|
|
PUBLIC DebugService2
|
|
DebugService2:
|
|
|
|
/* Pass the service number in eax */
|
|
mov rax, r8
|
|
int HEX(2D)
|
|
int 3
|
|
ret
|
|
|
|
|
|
/******************************************************************************
|
|
* NTSTATUS NTAPI DebugService(
|
|
* IN ULONG Service, // <rcx> = [rsp + 8]
|
|
* IN PVOID Buffer, // <rdx> = [rsp + 16]
|
|
* IN ULONG Length, // <r8> = [rsp + 24]
|
|
* IN PVOID Argument1, // <r9> = [rsp + 32]
|
|
* IN PVOID Argument2); // [rsp + 40]
|
|
*/
|
|
PUBLIC DebugService
|
|
DebugService:
|
|
|
|
/* Prepare registers for interrupt */
|
|
mov eax, ecx // Service
|
|
mov rcx, rdx // Buffer
|
|
mov edx, r8d // Length
|
|
mov r8, r9 // Argument1
|
|
mov r9, [rsp + 40] // Argument2
|
|
|
|
/* Call the Interrupt */
|
|
int HEX(2D)
|
|
int 3
|
|
|
|
/* Return */
|
|
ret
|
|
|
|
END
|