Cross Reference: /vbox/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile

	Makefile revision 88e9d91abf9293ecc1c70e0bf40e42f1c3a0bdce
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews#
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# Makefile for the VirtualBox Linux Host Virtual Network Adapter Driver.
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# (For 2.6.x this file must be called 'Makefile'!)
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews#
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews#
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews#
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# Copyright (C) 2006-2007 Oracle Corporation
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews#
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# This file is part of VirtualBox Open Source Edition (OSE), as
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# available from http://www.virtualbox.org. This file is free software;
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# you can redistribute it and/or modify it under the terms of the GNU
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# General Public License (GPL) as published by the Free Software
bf8267aa453e5d2a735ed732a043b77a0b355b20Mark Andrews# Foundation, in version 2 as it comes in the "COPYING" file of the
dafcb997e390efa4423883dafd100c975c4095d6Mark Andrews# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
12178c86525332bb0ab66155feb61fbf32eca6acEvan Hunt# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
9c3531d72aeaad6c5f01efe6a1c82023e1379e4dDavid Lawrence#
44aae046c38e796e581110b7ecdf4478167d684dBob Halley
44aae046c38e796e581110b7ecdf4478167d684dBob Halley#
44aae046c38e796e581110b7ecdf4478167d684dBob Halley# First, figure out which architecture we're targeting and the build type.
44aae046c38e796e581110b7ecdf4478167d684dBob Halley# (We have to support basic cross building (ARCH=i386|x86_64).)
c2bc56dc65b4b103a5600565680eb5f33fa4c90bMark Andrews# While at it, warn about BUILD_* vars found to help with user problems.
51917258dbb23cfe6069ae1cf2b7fc5aefc1e0c2Bob Halley#
51917258dbb23cfe6069ae1cf2b7fc5aefc1e0c2Bob Halleyifeq ($(filter-out x86_64 amd64 AMD64,$(shell uname -m)),)
44aae046c38e796e581110b7ecdf4478167d684dBob Halley BUILD_TARGET_ARCH_DEF := amd64
12178c86525332bb0ab66155feb61fbf32eca6acEvan Huntelse
44aae046c38e796e581110b7ecdf4478167d684dBob Halley BUILD_TARGET_ARCH_DEF := x86
44aae046c38e796e581110b7ecdf4478167d684dBob Halleyendif
fd35453765c6494d077edca44f4d998af5fd4cfaDavid Lawrenceifneq ($(filter-out amd64 x86,$(BUILD_TARGET_ARCH)),)
0e40083fdd5445703bd30e46e5bfe7d047bced12Brian Wellington $(warning Ignoring unknown BUILD_TARGET_ARCH value '$(BUILD_TARGET_ARCH)'.)
08a768e82ad64ede97f640c88e02984b59122753Michael Graff BUILD_TARGET_ARCH :=
69f5e6b73b0f53cd6027894f0a92b149cbf36e88William Kingendif
08a768e82ad64ede97f640c88e02984b59122753Michael Graffifeq ($(BUILD_TARGET_ARCH),)
08a768e82ad64ede97f640c88e02984b59122753Michael Graff ifeq ($(ARCH),x86_64)
08a768e82ad64ede97f640c88e02984b59122753Michael Graff  BUILD_TARGET_ARCH := amd64
08a768e82ad64ede97f640c88e02984b59122753Michael Graff else
08a768e82ad64ede97f640c88e02984b59122753Michael Graff  ifeq ($(ARCH),i386)
08a768e82ad64ede97f640c88e02984b59122753Michael Graff   BUILD_TARGET_ARCH := x86
44aae046c38e796e581110b7ecdf4478167d684dBob Halley  else
69f5e6b73b0f53cd6027894f0a92b149cbf36e88William King   BUILD_TARGET_ARCH := $(BUILD_TARGET_ARCH_DEF)
69f5e6b73b0f53cd6027894f0a92b149cbf36e88William King  endif
f4cbe536b11da614fe05aeaeff41e324854cda7bMark Andrews endif
44aae046c38e796e581110b7ecdf4478167d684dBob Halleyelse
56b40c0185bcbd4a04422acc1211b5e2d2ba8a3eBob Halley ifneq ($(BUILD_TARGET_ARCH),$(BUILD_TARGET_ARCH_DEF))
56b40c0185bcbd4a04422acc1211b5e2d2ba8a3eBob Halley  $(warning Using BUILD_TARGET_ARCH='$(BUILD_TARGET_ARCH)' from the $(origin BUILD_TARGET_ARCH).)
44aae046c38e796e581110b7ecdf4478167d684dBob Halley endif
44aae046c38e796e581110b7ecdf4478167d684dBob Halleyendif
f4cbe536b11da614fe05aeaeff41e324854cda7bMark Andrews
9f7d51ee3290e2a064d71016a6bd555b47134a7cMark Andrewsifneq ($(filter-out release profile debug strict,$(BUILD_TYPE)),)
44aae046c38e796e581110b7ecdf4478167d684dBob Halley $(warning Ignoring unknown BUILD_TYPE value '$(BUILD_TYPE)'.)
f4cbe536b11da614fe05aeaeff41e324854cda7bMark Andrews BUILD_TYPE :=
f4cbe536b11da614fe05aeaeff41e324854cda7bMark Andrewsendif
44aae046c38e796e581110b7ecdf4478167d684dBob Halleyifeq ($(BUILD_TYPE),)
44aae046c38e796e581110b7ecdf4478167d684dBob Halley BUILD_TYPE := release
f4cbe536b11da614fe05aeaeff41e324854cda7bMark Andrewselse
44aae046c38e796e581110b7ecdf4478167d684dBob Halley ifneq ($(BUILD_TYPE),release)
44aae046c38e796e581110b7ecdf4478167d684dBob Halley  $(warning Using BUILD_TYPE='$(BUILD_TYPE)' from the $(origin BUILD_TYPE).)
44aae046c38e796e581110b7ecdf4478167d684dBob Halley endif
endif

# override is required by the Debian guys
override MODULE = vboxnetadp
OBJS   = \
    linux/VBoxNetAdp-linux.o \
    VBoxNetAdp.o
ifeq ($(BUILD_TARGET_ARCH),x86)
OBJS += math/gcc/divdi3.o \
    math/gcc/moddi3.o \
    math/gcc/qdivrem.o \
    math/gcc/udivdi3.o \
        math/gcc/divdi3.o \
    math/gcc/umoddi3.o
endif

ifneq ($(MAKECMDGOALS),clean)

ifeq ($(KERNELRELEASE),)

 #
 # building from this directory
 #

 # kernel base directory
 ifndef KERN_DIR
  # build for the current kernel, version check
  KERN_DIR := /lib/modules/$(shell uname -r)/build
  ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
   KERN_DIR := /usr/src/linux
   ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
    $(error Error: unable to find the sources of your current Linux kernel. \
               Specify KERN_DIR=<directory> and run Make again)
   endif
   $(warning Warning: using /usr/src/linux as the source directory of your \
                      Linux kernel. If this is not correct, specify \
              KERN_DIR=<directory> and run Make again.)
  endif
  # check if versions match -- works only for later 2.6 kernels
  VBOX_KERN_VER := $(shell $(MAKE) -sC $(KERN_DIR) --no-print-directory kernelrelease 2> /dev/null || true)
  ifneq ($(VBOX_KERN_VER),)
   ifneq ($(VBOX_KERN_VER),$(shell uname -r))
    $(error Error: /usr/src/linux (version $(VBOX_KERN_VER)) does not match \
                   the current kernel (version $(shell uname -r)))
   endif
  endif
 else
  # build for a dedicated kernel, no version check
  ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
   $(error Error: KERN_DIR does not point to a directory)
  endif
 endif

 # includes
 ifndef KERN_INCL
  KERN_INCL = $(KERN_DIR)/include
 endif
 ifneq ($(shell if test -d $(KERN_INCL); then echo yes; fi),yes)
  $(error Error: unable to find the include directory for your current Linux \
                 kernel. Specify KERN_INCL=<directory> and run Make again)
 endif

 # module install dir, only for current kernel
 ifneq ($(filter install install_rpm,$(MAKECMDGOALS)),)
  ifndef MODULE_DIR
   MODULE_DIR_TST := /lib/modules/$(shell uname -r)
   ifeq ($(shell if test -d $(MODULE_DIR_TST); then echo yes; fi),yes)
    MODULE_DIR := $(MODULE_DIR_TST)/misc
   else
    $(error Unable to find the folder to install the support driver to)
   endif
  endif # MODULE_DIR unspecified
 endif

else # neq($(KERNELRELEASE),)

 #
 # building from kbuild (make -C <kernel_directory> M=`pwd`)
 #

endif # neq($(KERNELRELEASE),)

# debug - show guesses.
ifdef DEBUG
$(warning dbg: KERN_DIR     = $(KERN_DIR))
$(warning dbg: KERN_INCL    = $(KERN_INCL))
$(warning dbg: MODULE_DIR   = $(MODULE_DIR))
endif

KBUILD_VERBOSE ?= 1

#
# Compiler options
#
ifndef INCL
 INCL    := $(addprefix -I,$(KERN_INCL) $(EXTRA_INCL))
 ifndef KBUILD_EXTMOD
  KBUILD_EXTMOD := $(shell pwd)
 endif
 INCL    += $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
 export INCL
endif
KFLAGS   := -D__KERNEL__ -DMODULE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING
ifdef VBOX_REDHAT_KABI
 KFLAGS  += -DVBOX_REDHAT_KABI
endif
ifeq ($(BUILD_TARGET_ARCH),amd64)
 KFLAGS  += -DRT_ARCH_AMD64
else
 KFLAGS  += -DRT_ARCH_X86
endif
# must be consistent with Config.kmk!
KFLAGS  += -DVBOX_WITH_64_BITS_GUESTS
ifeq ($(BUILD_TYPE),debug)
 KFLAGS  += -DDEBUG -DDEBUG_$(USER) -g
 # IPRT_DEBUG_SEMS indicates thread wrt sems state via the comm field.
 #KFLAGS  += -DIPRT_DEBUG_SEMS
endif

# By default we use remap_pfn_range() kernel API to make kernel pages
# visible for userland. Unfortuately, it leads to situation that
# during debug session all structures on that page (such as PVM pointer)
# are not accessible to the debugger (see #3214).
# This code enables experimental support
# for vm_insert_page() kernel API, allowing to export kernel pages
# to the userland in more debugger-friendly way. Due to stability
# concerns, not enabled by default yet.
ifdef VBOX_USE_INSERT_PAGE
 KFLAGS  += -DVBOX_USE_INSERT_PAGE
endif

MODULE_EXT    := ko
$(MODULE)-y   := $(OBJS)

# build defs
EXTRA_CFLAGS  += $(INCL) $(KFLAGS) $(KDEBUG)

all: $(MODULE)

obj-m += $(MODULE).o

$(MODULE):
    $(MAKE) KBUILD_VERBOSE=$(KBUILD_VERBOSE) -C $(KERN_DIR) SUBDIRS=$(CURDIR) SRCROOT=$(CURDIR) modules

install: $(MODULE)
    @mkdir -p $(MODULE_DIR); \
    install -m 0664 -o root -g root $(MODULE).$(MODULE_EXT) $(MODULE_DIR); \
    PATH="$(PATH):/bin:/sbin" depmod -a; \
    rm -f /etc/vbox/module_not_compiled

install_rpm: $(MODULE)
    @mkdir -p $(MODULE_DIR); \
    install -m 0664 $(MODULE).$(MODULE_EXT) $(MODULE_DIR)

endif # eq($(MAKECMDGOALS),clean)

# important: Don't remove Module.symvers! DKMS does 'make clean' before building ...
clean:
    for f in . linux r0drv r0drv/linux VBox common/err common/string common/log generic math/gcc; \
        do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done
    rm -rf .vboxnetadp* .tmp_ver* vboxnetadp.* Modules.symvers modules.order