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|
; $Id: bootsector2-common-traprec.mac $
;; @file
; Boot sector 2 - Trap Records.
;
; @note Don't forget to cinldue bootsector2-common-traprec-end.mac!
;
;
; Copyright (C) 2007-2023 Oracle and/or its affiliates.
;
; This file is part of VirtualBox base platform packages, as
; available from https://www.virtualbox.org.
;
; This program is free software; you can redistribute it and/or
; modify it under the terms of the GNU General Public License
; as published by the Free Software Foundation, in version 3 of the
; License.
;
; This program is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, see <https://www.gnu.org/licenses>.
;
; The contents of this file may alternatively be used under the terms
; of the Common Development and Distribution License Version 1.0
; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
; in the VirtualBox distribution, in which case the provisions of the
; CDDL are applicable instead of those of the GPL.
;
; You may elect to license modified versions of this file under the
; terms and conditions of either the GPL or the CDDL or both.
;
; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
;
%ifndef ___bootsector2_common_traprec_mac___
%define ___bootsector2_common_traprec_mac___
;*******************************************************************************
;* Header Files *
;*******************************************************************************
%include "iprt/x86.mac"
;*******************************************************************************
;* Defined Constants And Macros *
;*******************************************************************************
;;
; The base address for the records (only important for 64-bit code
; loaded above 4GB).
; We use 0 by default so we don't create too complex expressions for YASM.
%ifndef BS2_TRAP_RECS_BASE
%define BS2_TRAP_RECS_BASE 0
%endif
;;
; Macro to emit an trapping instruction.
;
; @param 1 The trap number (X86_XCPT_XXX).
; @param 2 The error code, 0 if none.
; @param 3+ The instruction.
;
; @sa BS2_TRAP_BRANCH_INSTR
;
%macro BS2_TRAP_INSTR 3+,
[section .traprecs]
istruc BS2TRAPREC
at BS2TRAPREC.offWhere, dd (%%trapinstr - BS2_TRAP_RECS_BASE)
at BS2TRAPREC.offResumeAddend, db (%%resume - %%trapinstr)
at BS2TRAPREC.u8TrapNo, db %1
at BS2TRAPREC.u16ErrCd, dw %2
iend
__SECT__
%if %1 != X86_XCPT_BP
%%trapinstr:
%3
%else
%3
%%trapinstr:
%endif
call TMPL_NM_CMN(TestFailedMissingTrap_ %+ %1)
%%resume:
%endmacro
;;
; Macro to emit an trapping instruction.
;
; @param 1 The trap number (X86_XCPT_XXX).
; @param 2 The error code, 0 if none.
; @param 3 The name of the branch label.
; @param 4+ The instruction.
;
%macro BS2_TRAP_BRANCH_INSTR 4+,
[section .traprecs]
istruc BS2TRAPREC
at BS2TRAPREC.offWhere, dd (%%trapinstr - BS2_TRAP_RECS_BASE)
at BS2TRAPREC.offResumeAddend, db (%%resume - %%trapinstr)
at BS2TRAPREC.u8TrapNo, db %1
at BS2TRAPREC.u16ErrCd, dw %2
iend
__SECT__
%%trapinstr:
%4
%3:
call TMPL_NM_CMN(TestFailedMissingTrap_ %+ %1)
%%resume:
%endmacro
;;
; Sets up the trap records section.
; @internal
%macro BS2_TRAP_RECS_BEGIN 0,
[section .traprecs] ; Declared in bootsector2-common-init-code.mac
dq 0ffffffffeeeeeeeeh
g_aTrapRecs:
__SECT__
%endmacro
;;
; Terminates the trap records section.
; @internal
%macro BS2_TRAP_RECS_END 0,
[section .traprecs]
g_aTrapRecsEnd:
dq 0ddddddddcccccccch
__SECT__
%endmacro
;;
; Macro for installing the trap records.
;
; This must be invoked prior to the traps.
;
; @uses Stack
;
%macro BS2_TRAP_RECS_INSTALL 0,
push sAX
push sDX
push sCX
mov sAX, NAME(g_aTrapRecs)
mov edx, NAME(g_aTrapRecsEnd) - NAME(g_aTrapRecs)
shr edx, BS2TRAPREC_SIZE_SHIFT
mov sCX, BS2_TRAP_RECS_BASE
call TMPL_NM_CMN(TestInstallTrapRecs)
pop sAX
pop sDX
pop sCX
%endmacro
;;
; Macro for uninstalling the trap records.
;
; @uses Stack
;
%macro BS2_TRAP_RECS_UNINSTALL 0,
push sAX
push sDX
push sCX
xor sAX, sAX
xor edx, edx
xor sCX, sCX
call TMPL_NM_CMN(TestInstallTrapRecs)
pop sAX
pop sDX
pop sCX
%endmacro
;
; Setup the trap record segment.
;
BS2_TRAP_RECS_BEGIN
BEGINCODELOW
;
; Instantiate code templates.
;
%ifdef BS2_INC_CMN_R86
%define TMPL_RM
%include "bootsector2-common-traprec-template.mac"
%endif
%ifdef BS2_INC_CMN_P16
%define TMPL_PE16
%include "bootsector2-common-traprec-template.mac"
%endif
%ifdef BS2_INC_CMN_P32
%define TMPL_PE32
%include "bootsector2-common-traprec-template.mac"
%endif
%ifdef BS2_INC_LM64
%define TMPL_LM64
%include "bootsector2-common-traprec-template.mac"
%endif
BEGINCODELOW
%endif
|
