Michal Kubecek
8a9708499f
Since commit 0126be38d988 ("kbuild: announce removal of SUBDIRS if used")
in v5.0-rc1, using SUBDIRS when building out of tree modules produces
a deprecation warning. As M used to work since pretty much ever, use it
unconditionally.
151 lines
4.0 KiB
Makefile
151 lines
4.0 KiB
Makefile
#!/usr/bin/make -f
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##########################################################
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# Copyright (C) 1998-2015 VMware, Inc. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation version 2 and no later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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# for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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##########################################################
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####
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#### VMware kernel module Makefile to be distributed externally
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####
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####
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#### SRCROOT _must_ be a relative path.
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####
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SRCROOT = .
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#
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# open-vm-tools doesn't replicate shared source files for different modules;
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# instead, files are kept in shared locations. So define a few useful macros
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# to be able to handle both cases cleanly.
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#
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INCLUDE :=
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ifdef OVT_SOURCE_DIR
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AUTOCONF_DIR := $(OVT_SOURCE_DIR)/modules/linux/shared/autoconf
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VMLIB_PATH = $(OVT_SOURCE_DIR)/lib/$(1)
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INCLUDE += -I$(OVT_SOURCE_DIR)/modules/linux/shared
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INCLUDE += -I$(OVT_SOURCE_DIR)/lib/include
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else
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AUTOCONF_DIR := $(SRCROOT)/shared/autoconf
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INCLUDE += -I$(SRCROOT)/shared
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endif
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VM_UNAME = $(shell uname -r)
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# Header directory for the running kernel
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ifdef LINUXINCLUDE
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HEADER_DIR = $(LINUXINCLUDE)
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else
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HEADER_DIR = /lib/modules/$(VM_UNAME)/build/include
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endif
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BUILD_DIR = $(HEADER_DIR)/..
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DRIVER := vmnet
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PRODUCT := @@PRODUCT@@
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# Grep program
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GREP = /bin/grep
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vm_check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null \
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> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi)
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vm_check_file = $(shell if test -f $(1); then echo "yes"; else echo "no"; fi)
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ifndef VM_KBUILD
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VM_KBUILD := no
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ifeq ($(call vm_check_file,$(BUILD_DIR)/Makefile), yes)
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VM_KBUILD := yes
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endif
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export VM_KBUILD
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endif
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ifndef VM_KBUILD_SHOWN
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ifeq ($(VM_KBUILD), no)
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VM_DUMMY := $(shell echo >&2 "Using standalone build system.")
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else
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VM_DUMMY := $(shell echo >&2 "Using kernel build system.")
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endif
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VM_KBUILD_SHOWN := yes
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export VM_KBUILD_SHOWN
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endif
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ifneq ($(VM_KBUILD), no)
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VMCCVER := $(shell $(CC) -dumpversion)
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# If there is no version defined, we are in toplevel pass, not yet in kernel makefiles...
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ifeq ($(VERSION),)
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DRIVER_KO := $(DRIVER).ko
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.PHONY: $(DRIVER_KO)
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auto-build: $(DRIVER_KO)
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cp -f $< $(SRCROOT)/../$(DRIVER).o
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# $(DRIVER_KO) is a phony target, so compare file times explicitly
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$(DRIVER): $(DRIVER_KO)
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if [ $< -nt $@ ] || [ ! -e $@ ] ; then cp -f $< $@; fi
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# Pass gcc version down the chain, so we can detect if kernel attempts to use unapproved compiler
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VM_CCVER := $(VMCCVER)
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export VM_CCVER
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VM_CC := $(CC)
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export VM_CC
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MAKEOVERRIDES := $(filter-out CC=%,$(MAKEOVERRIDES))
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#
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# Define a setup target that gets built before the actual driver.
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# This target may not be used at all, but if it is then it will be defined
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# in Makefile.kernel
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#
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prebuild:: ;
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postbuild:: ;
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$(DRIVER_KO): prebuild
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$(MAKE) -C $(BUILD_DIR) M=$$PWD SRCROOT=$$PWD/$(SRCROOT) \
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MODULEBUILDDIR=$(MODULEBUILDDIR) modules
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$(MAKE) -C $$PWD SRCROOT=$$PWD/$(SRCROOT) \
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MODULEBUILDDIR=$(MODULEBUILDDIR) postbuild
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endif
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vm_check_build = $(shell if $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) \
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$(CPPFLAGS) $(CFLAGS) $(CFLAGS_KERNEL) $(LINUXINCLUDE) \
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$(EXTRA_CFLAGS) -Iinclude2/asm/mach-default \
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-DKBUILD_BASENAME=\"$(DRIVER)\" \
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-Werror -S -o /dev/null -xc $(1) \
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> /dev/null 2>&1; then echo "$(2)"; else echo "$(3)"; fi)
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CC_WARNINGS := -Wall -Wstrict-prototypes
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CC_OPTS := $(GLOBAL_DEFS) $(CC_WARNINGS) -DVMW_USING_KBUILD
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ifdef VMX86_DEVEL
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CC_OPTS += -DVMX86_DEVEL
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endif
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ifdef VMX86_DEBUG
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CC_OPTS += -DVMX86_DEBUG
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endif
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include $(SRCROOT)/Makefile.kernel
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else
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include $(SRCROOT)/Makefile.normal
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endif
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#.SILENT:
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