; $Id: bs3-first-common.mac 59932 2016-03-04 16:01:18Z vboxsync $
;; @file
; BS3Kit - First Object, common stuff.
;

;
; Copyright (C) 2007-2015 Oracle Corporation
;
; This file is part of VirtualBox Open Source Edition (OSE), as
; available from http://www.virtualbox.org. This file is free software;
; you can redistribute it and/or modify it under the terms of the GNU
; General Public License (GPL) as published by the Free Software
; Foundation, in version 2 as it comes in the "COPYING" file of the
; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
;
; The contents of this file may alternatively be used under the terms
; of the Common Development and Distribution License Version 1.0
; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
; VirtualBox OSE 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.
;


%include "bs3kit.mac"


;
;
; Define all the segments and their grouping, just to get that right once at
; the start of everything.
;
;

;
; 16-bit text
;
BS3_BEGIN_TEXT16
BS3_GLOBAL_DATA Bs3Text16_StartOfSegment, 0

; Entry point with eye-catcher.
GLOBALNAME start
global __ImageBase                      ; for MS compiler
__ImageBase:
    jmp     .after_eye_catcher
    db      10,13,'eye-catcher: BS3TEXT16',10,13
.after_eye_catcher:

%ifdef ASM_FORMAT_ELF
section BS3TEXT16_END   align=2 progbits alloc exec nowrite
%else
section BS3TEXT16_END   align=2 CLASS=BS3CODE16 PUBLIC USE16
%endif

BS3_GLOBAL_DATA Bs3Text16_EndOfSegment, 0

%ifndef ASM_FORMAT_ELF
GROUP CGROUP16 BS3TEXT16 BS3TEXT16_END
%endif


;
; 16-bit data
;
BS3_BEGIN_DATA16
BS3_GLOBAL_DATA Bs3Data16_StartOfSegment, 0
    db      10,13,'eye-catcher: BS3DATA16',10,13

ALIGNDATA(16)
BS3_GLOBAL_DATA Bs3Data16_Size, 4
    dd  BS3_DATA_NM(Bs3Data16_EndOfSegment) wrt BS3DATA16_GROUP
BS3_GLOBAL_DATA Bs3Data16Thru64Text32And64_TotalSize, 4
    dd  BS3_DATA_NM(Bs3Data64_EndOfSegment) wrt BS3DATA16_GROUP
BS3_GLOBAL_DATA Bs3TotalImageSize, 4
    dd  BS3_DATA_NM(Bs3Data64_EndOfSegment) wrt CGROUP16
BS3_GLOBAL_DATA Bs3Text16_Size, 2
    dd  BS3_DATA_NM(Bs3Text16_EndOfSegment) wrt CGROUP16

%ifdef ASM_FORMAT_ELF
section BS3DATA16CONST  align=2   progbits alloc noexec write
section BS3DATA16CONST2 align=2   progbits alloc noexec write
section BS3DATA16_DATA  align=2   progbits alloc noexec write
section BS3DATA16_END   align=2   progbits alloc noexec write
%else
section BS3DATA16CONST  align=2   CLASS=FAR_DATA PUBLIC USE16
section BS3DATA16CONST2 align=2   CLASS=FAR_DATA PUBLIC USE16
section BS3DATA16_DATA  align=2   CLASS=FAR_DATA PUBLIC USE16
section BS3DATA16_END   align=2   CLASS=FAR_DATA PUBLIC USE16
%endif

BS3_GLOBAL_DATA Bs3Data16_EndOfSegment, 0

%ifndef ASM_FORMAT_ELF
GROUP BS3DATA16_GROUP BS3DATA16 BS3DATA16_DATA BS3DATA16CONST BS3DATA16CONST2 BS3DATA16_END
%endif


;
; 32-bit text
;
BS3_BEGIN_TEXT32
BS3_GLOBAL_DATA Bs3Text32_StartOfSegment, 0
    db      10,13,'eye-catcher: BS3TEXT32',10,13

%ifdef ASM_FORMAT_ELF
section BS3TEXT32_END   align=1 progbits alloc exec nowrite
%else
section BS3TEXT32_END   align=1 CLASS=BS3CODE32 PUBLIC USE32 FLAT
%endif

BS3_GLOBAL_DATA Bs3Text32_EndOfSegment, 0


;
; 64-bit text
;
BS3_BEGIN_TEXT64
BS3_GLOBAL_DATA Bs3Text64_StartOfSegment, 0
    db      10,13,'eye-catcher: BS3TEXT64',10,13

%ifdef ASM_FORMAT_OMF
;section TEXT64 align=4 CLASS=CODE PUBLIC USE32
;section .text  align=4 CLASS=CODE PUBLIC USE32 - nasm doesn't do '.' at the start of segments in OMF mode. Not that this helps anyways...
;section .rdata align=4 CLASS=CODE PUBLIC USE32
;GROUP CODE64 TEXT64 _text _rdata
%endif

%ifdef ASM_FORMAT_ELF
section BS3TEXT64_END   align=1 progbits alloc exec nowrite
%else
section BS3TEXT64_END   align=1 CLASS=BS3CODE64 PUBLIC USE32 FLAT
%endif
BS3_GLOBAL_DATA Bs3Text64_EndOfSegment, 0


;
; 32-bit data
;
BS3_BEGIN_DATA32
BS3_GLOBAL_DATA Bs3Data32_StartOfSegment, 0
    db      10,13,'eye-catcher: BS3DATA32',10,13
%ifdef ASM_FORMAT_ELF
section BS3DATA32_END   align=16   progbits alloc noexec write
%else
section BS3DATA32CONST  align=16   CLASS=FAR_DATA PUBLIC USE32
section BS3DATA32CONST2 align=16   CLASS=FAR_DATA PUBLIC USE32
section BS3DATA32_DATA  align=16   CLASS=FAR_DATA PUBLIC USE32
section BS3DATA32_END   align=16   CLASS=FAR_DATA PUBLIC USE32
%endif
BS3_GLOBAL_DATA Bs3Data32_EndOfSegment, 0

%ifndef ASM_FORMAT_ELF
GROUP BS3DATA32_GROUP BS3DATA32 BS3DATA32_DATA BS3DATA32CONST BS3DATA32CONST2 BS3DATA32_END
%endif

;
; 64-bit data
;
BS3_BEGIN_DATA64
BS3_GLOBAL_DATA Bs3Data64_StartOfSegment, 0
    db      10,13,'eye-catcher: BS3DATA64',10,13
%ifdef ASM_FORMAT_ELF
section BS3DATA64_END   align=16   progbits alloc noexec write
%else
;section .data           align=8    CLASS=DATA PUBLIC USE32
;section .rdata          align=8    CLASS=DATA PUBLIC USE32
;section .xdata          align=8    CLASS=DATA PUBLIC USE32
;section .pdata          align=8    CLASS=DATA PUBLIC USE32
;section .bss            align=8    CLASS=DATA PUBLIC USE32
section BS3DATA64_END   align=16   CLASS=FAR_DATA PUBLIC USE32
%endif
BS3_GLOBAL_DATA Bs3Data64_EndOfSegment, 0

%ifndef ASM_FORMAT_ELF
;GROUP BS3DATA64_GROUP BS3DATA64 .data .rdata .xdata .pdata .bss BS3DATA64_END
GROUP BS3DATA64_GROUP BS3DATA64 BS3DATA64_END
%endif


;
; 16-bit accessible system data.
; No need to do anything here.
;
BS3_BEGIN_SYSTEM16


;
; Switch back to the 16-bit code segment.
;
BS3_BEGIN_TEXT16