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# $Id: Makefile.include.footer $
## @file
# VirtualBox Guest Additions kernel module Makefile, common parts.
#
# See Makefile.include.header for details of how to use this.
#
#
# Copyright (C) 2006-2019 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.
#
# override is required by the Debian guys
override MODULE = $(MOD_NAME)
OBJS = $(MOD_OBJS)
KBUILD_VERBOSE ?= 1
LINUX_VERBOSE = $(if $(KBUILD_VERBOSE),1,)
#
# Compiler options
#
ifndef INCL
INCL := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
ifndef KBUILD_EXTMOD
KBUILD_EXTMOD := $(shell pwd)
endif
INCL += $(MOD_INCL)
export INCL
endif
KFLAGS := -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE $(MOD_DEFS)
ifeq ($(BUILD_TYPE),debug)
# The -Wno-array-bounds is because of a bug in gcc 4.something, see
# https://sourceware.org/bugzilla/show_bug.cgi?id=10001
KFLAGS += -DDEBUG -DDEBUG_$(subst $(subst _, ,_),_,$(USERNAME)) -DDEBUG_USERNAME=$(subst $(subst _, ,_),_,$(USERNAME))
ifeq ($(shell expr $(KERN_VER) : '[23]\.'),0)
KFLAGS += -Werror -Wall -Wno-array-bounds
endif
endif
ifeq ($(KERN_VERSION), 24)
#
# 2.4
#
# Note: while 2.4 kernels could also do "proper" builds from kbuild, the make
# script needed to support it was somewhat different from 2.6. Since this
# script works and 2.4 is not a moving target we will not try do do things the
# "proper" way.
ifeq ($(BUILD_TARGET_ARCH),amd64)
KFLAGS += -mcmodel=kernel
endif
CFLAGS := -O2 -DVBOX_LINUX_2_4 $(MOD_CFLAGS) $(INCL) $(KFLAGS) $(MOD_EXTRA) $(KDEBUG)
MODULE_EXT := o
# 2.4 Module linking
$(MODULE).o: $(OBJS)
$(LD) -o $@ -r $(OBJS)
.PHONY: $(MODULE)
all: $(MODULE)
$(MODULE): $(MODULE).o
install: $(MODULE)
@mkdir -p $(MODULE_DIR); \
install -m 0644 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
PATH="$(PATH):/bin:/sbin" depmod -a; sync
clean:
for f in $(sort $(dir $(OBJS))); do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done
rm -rf .$(MOD_NAME)* .tmp_ver* $(MOD_NAME).* Modules.symvers modules.order
else # ! $(KERN_VERSION), 24
#
# 2.6 and later
#
MODULE_EXT := ko
$(MODULE)-y := $(OBJS)
# build defs
EXTRA_CFLAGS += $(MOD_CFLAGS) $(INCL) $(KFLAGS) $(MOD_EXTRA) $(KDEBUG)
.PHONY: $(MODULE)
all: $(MODULE)
obj-m += $(MODULE).o
JOBS := $(shell (getconf _NPROCESSORS_ONLN || grep -Ec '^processor|^CPU[0-9]' /proc/cpuinfo) 2>/dev/null)
ifeq ($(JOBS),0)
override JOBS := 1
endif
# OL/UEK: disable module signing for external modules -- we don't have any private key
$(MODULE):
$(MAKE) V=$(LINUX_VERBOSE) CONFIG_MODULE_SIG= -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) $(if $(JOBS),-j$(JOBS),) modules
install: $(MODULE)
$(MAKE) V=$(LINUX_VERBOSE) CONFIG_MODULE_SIG= -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) INSTALL_MOD_PATH=$(INSTALL_MOD_PATH) INSTALL_MOD_DIR=$(INSTALL_MOD_DIR) modules_install
modules_install: install
clean:
$(MAKE) V=$(LINUX_VERBOSE) CONFIG_MODULE_SIG= -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) clean
.PHONY: $(MODULE) install modules_install clean
endif
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