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title "NtCurTeb.asm"
;++
;
; Copyright (c) 1989 Microsoft Corporation
;
; Module Name:
;
; NtCurTeb.asm
;
; Abstract:
;
; Efficient NtCurrentTeb code.
;
; Author:
;
; Bryan Willman (bryanwi) 28 feb 90
;
; Environment:
;
; Revision History:
;
;--
.386p
.xlist
include ks386.inc
include callconv.inc ; calling convention macros
.list
page ,132
subttl "NtCurrentTeb"
IFDEF NTOS_KERNEL_RUNTIME
.PAGE SEGMENT DWORD PUBLIC 'CODE'
ELSE
_TEXT SEGMENT DWORD PUBLIC 'CODE'
ENDIF
ASSUME DS:FLAT, ES:FLAT, SS:NOTHING, FS:NOTHING, GS:NOTHING
;++
;
; PTEB
; NtCurrentTeb();
;
; Routine Description:
;
; This routine returns the address of the current TEB.
;
; Arguments:
;
; None
;
; Return Value:
;
; Address of TEB.
;
;--
cPublicProc _NtCurrentTeb ,0
cPublicFpo 0,0
;
; How this works in both user and kernel mode.
;
; In user mode, TEB.TIB.Self is flat address of containing structure.
; In kernel mode, PCR.TIB.Self is flat address of the TEB.
; Same offset both places, so fs:PcTeb is always the flat address
; of the TEB.
;
mov eax,fs:[PcTeb]
stdRET _NtCurrentTeb
stdENDP _NtCurrentTeb
IFDEF NTOS_KERNEL_RUNTIME
.PAGE ENDS
ELSE
_TEXT ENDS
ENDIF
end
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