# $Id: Makefile.kmk 106710 2024-10-25 23:38:20Z vboxsync $
## @file
# Sub-Makefile for the VirtualBox Windows Guest Shared Folders FSD.
#

#
# Copyright (C) 2006-2024 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>.
#
# SPDX-License-Identifier: GPL-3.0-only
#

SUB_DEPTH = ../../../../../..
include $(KBUILD_PATH)/subheader.kmk

#
# VBoxSF
# Note! On X86 this is only used for windows 8 and later.
# Note! On X86 we must link against ntoskrnl.lib from the default WDK when /guard:cf is enabled,
#       or the linker barfs at loadcfg.obj not containing a large enough load config structure.
#
SYSMODS += VBoxSF
VBoxSF_TEMPLATE    = VBoxGuestR0Drv
VBoxSF_DEFS        = LOG_TO_BACKDOOR VBOX_WITH_HGCM IN_RING0
#VBoxSF_DEFS       += LOG_ENABLED

VBoxSF_SDKS        = ReorderCompilerIncs $(VBOX_WINDDK_GST_WLH)

VBoxSF_LDFLAGS.x86   = -Entry:DriverEntry@8
VBoxSF_LDFLAGS.amd64 = -Entry:DriverEntry
VBoxSF_LDFLAGS.arm64 = -Entry:DriverEntry
VBoxSF_SOURCES     = \
	vbsf.cpp \
	net.cpp \
	file.cpp \
	info.cpp \
	path.cpp \
	vbsfhlp.cpp \
	VBoxSF.rc
VBoxSF_SOURCES.x86 = \
	Win2kWorkarounds.c \
	Win2kWorkaroundsA.asm
VBoxSF_SOURCES.arm64 = \
	Arm64CopySupStub.cpp

if1of ($(KBUILD_TARGET_ARCH), amd64 x86)
 VBoxSF_LIBS = \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/rxce.lib \
 	$(VBoxSF_0_OUTDIR)/rdbsslib.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/copysup.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/hal.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/ksecdd.lib \
 	$(VBOX_LIB_VBGL_R0) \
 	$(VBOX_LIB_IPRT_GUEST_R0) # before ntoskrnl.lib
 ifneq ($(VBOX_VCC_CC_GUARD_CF),)
  VBoxSF_LIBS += \
  	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/ntoskrnl.lib \
  	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/BufferOverflowK.lib
 else
  VBoxSF_LIBS += \
  	$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/ntoskrnl.lib \
  	$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/BufferOverflowK.lib
 endif
else
 VBoxSF_LIBS = \
 	$(VBOX_LIB_VBGL_R0) \
 	$(VBOX_LIB_IPRT_GUEST_R0) \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/rxce.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/hal.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/ksecdd.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/ntoskrnl.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/BufferOverflowFastFailK.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.$(KBUILD_TARGET_ARCH))/libcntpr.lib
endif

if1of ($(KBUILD_TARGET_ARCH), amd64 x86)
 VBoxSF_CLEAN = \
 	$(VBoxSF_0_OUTDIR)/rdbsslib.lib
endif

VBoxSF_USES.win += vboximportchecker
VBoxSF_VBOX_IMPORT_CHECKER.win.x86 = w8/r0
VBoxSF_VBOX_IMPORT_CHECKER.win.amd64 = xp64/r0
#VBoxSF_VBOX_IMPORT_CHECKER.win.arm64 = w10-1709/r0 - The 10.0.26100.0 libs uses ExAllocatePool2 which was added in W10 2004.
## @todo win.arm64: support shared folders on windows 10 arm64.


ifeq ($(KBUILD_TARGET_ARCH),x86)
 #
 # This driver version is used for Windows 2000, XP, W2K3, Vista and 7.
 #
 SYSMODS.x86 += VBoxSFW2K
 VBoxSFW2K_EXTENDS     := VBoxSF
 VBoxSFW2K_SDKS         = ReorderCompilerIncs $(VBOX_WINDDK_GST_W2K3)
 VBoxSFW2K_LIBS         = \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.x86)/rxce.lib \
 	$(VBoxSFW2K_0_OUTDIR)/rdbsslib.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.x86)/copysup.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.x86)/hal.lib \
 	$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.x86)/ksecdd.lib \
 	\
 	$(VBOX_LIB_VBGL_R0) \
 	$(VBOX_LIB_IPRT_GUEST_R0) # before ntoskrnl.lib
 ifneq ($(VBOX_VCC_CC_GUARD_CF),)
  VBoxSFW2K_LIBS += \
  	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.x86)/ntoskrnl.lib \
  	$(PATH_SDK_$(VBOX_WINDDK_GST)_LIB.x86)/BufferOverflowK.lib
 else
  VBoxSFW2K_LIBS += \
  	$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.x86)/ntoskrnl.lib \
  	$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.x86)/BufferOverflowK.lib
 endif
 VBoxSFW2K_CLEAN = \
 	$(VBoxSFW2K_0_OUTDIR)/rdbsslib.lib
 VBoxSFW2K_USES.win += vboximportchecker
 VBoxSFW2K_VBOX_IMPORT_CHECKER.win.x86 = w2k/r0
endif


include $(FILE_KBUILD_SUB_FOOTER)

#
# rdbsslib.lib symbol editing for x86 and amd64.
#
ifeq ($(KBUILD_TARGET_ARCH),x86)
 $(call KB_FN_AUTO_CMD_DEPS,$(VBoxSF_0_OUTDIR)/rdbsslib.lib)

 $(VBoxSF_0_OUTDIR)/rdbsslib.lib: $$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib | $$(dir $$@) $(VBOX_EDIT_COFF_LIB)
	$(call KB_FN_AUTO_CMD_DEPS_COMMANDS)
	$(VBOX_EDIT_COFF_LIB) --input $(requote sh,$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib) --output "$@" \
		--select "write.obj" \
               --redefine-sym "__imp__CcFlushCache@16=_g_pfnWrFlushCache" \
               --redefine-sym "__imp__CcPurgeCacheSection@16=_g_pfnWrPurgeCacheSection" \
		--select "read.obj" \
               --redefine-sym "__imp__CcFlushCache@16=_g_pfnRdFlushCache"

 $(call KB_FN_AUTO_CMD_DEPS,$(VBoxSFW2K_0_OUTDIR)/rdbsslib.lib)
 $(VBoxSFW2K_0_OUTDIR)/rdbsslib.lib: $$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib | $$(dir $$@) $(VBOX_EDIT_COFF_LIB)
	$(call KB_FN_AUTO_CMD_DEPS_COMMANDS)
	$(VBOX_EDIT_COFF_LIB) --input $(requote sh,$(PATH_SDK_$(VBOX_WINDDK_GST_W2K3)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib) --output "$@" \
		--select "write.obj" \
               --redefine-sym "__imp__CcFlushCache@16=_g_pfnWrFlushCache" \
               --redefine-sym "__imp__CcPurgeCacheSection@16=_g_pfnWrPurgeCacheSection" \
		--select "read.obj" \
               --redefine-sym "__imp__CcFlushCache@16=_g_pfnRdFlushCache"

else ifeq ($(KBUILD_TARGET_ARCH),amd64)
 $(call KB_FN_AUTO_CMD_DEPS,$(VBoxSF_0_OUTDIR)/rdbsslib.lib)
 $(VBoxSF_0_OUTDIR)/rdbsslib.lib: $$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib | $$(dir $$@) $(VBOX_EDIT_COFF_LIB)
	$(call KB_FN_AUTO_CMD_DEPS_COMMANDS)
	$(VBOX_EDIT_COFF_LIB) --input $(requote sh,$(PATH_SDK_$(VBOX_WINDDK_GST_WLH)_LIB.$(KBUILD_TARGET_ARCH))/rdbsslib.lib) --output "$@" \
		--select "write.obj" \
               --redefine-sym "__imp_CcFlushCache=g_pfnWrFlushCache" \
               --redefine-sym "__imp_CcPurgeCacheSection=g_pfnWrPurgeCacheSection" \
		--select "read.obj" \
               --redefine-sym "__imp_CcFlushCache=g_pfnRdFlushCache"
endif # amd64