/usr/share/dpdk/mk/rte.bsdmodule.mk is in dpdk-dev 2.2.0-0ubuntu7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##### if sourced from kernel Kbuild system
ifneq ($(KERNELRELEASE),)
override EXTRA_CFLAGS = $(MODULE_CFLAGS) $(EXTRA_KERNEL_CFLAGS)
obj-m += $(MODULE).o
ifneq ($(MODULE),$(notdir $(SRCS-y:%.c=%)))
$(MODULE)-objs += $(notdir $(SRCS-y:%.c=%.o))
endif
##### if launched from rte build system
else
include $(RTE_SDK)/mk/internal/rte.install-pre.mk
include $(RTE_SDK)/mk/internal/rte.clean-pre.mk
include $(RTE_SDK)/mk/internal/rte.build-pre.mk
include $(RTE_SDK)/mk/internal/rte.depdirs-pre.mk
# DPDK uses a more up-to-date gcc, so clear the override here.
unexport CC
override CFLAGS = $(MODULE_CFLAGS)
# VPATH contains at least SRCDIR
VPATH += $(SRCDIR)
_BUILD = $(MODULE).ko
_INSTALL = $(INSTALL-FILES-y) $(SYMLINK-FILES-y) \
$(RTE_OUTPUT)/kmod/$(MODULE).ko
_CLEAN = doclean
SRCS_LINKS = $(addsuffix _link,$(SRCS-y))
compare = $(strip $(subst $(1),,$(2)) $(subst $(2),,$(1)))
.PHONY: all
all: install
.PHONY: install
install: build _postinstall
_postinstall: build
.PHONY: build
build: _postbuild
# Link all sources in build directory
%_link: FORCE
$(if $(call compare,$(notdir $*),$*),\
$(Q)if [ ! -f $(notdir $(*)) ]; then ln -nfs $(SRCDIR)/$(*) . ; fi,\
$(Q)if [ ! -f $(notdir $(*)) ]; then ln -nfs $(SRCDIR)/$(*) . ; fi)
# build module
$(MODULE).ko: $(SRCS_LINKS)
$(Q)if [ ! -f $(notdir Makefile) ]; then ln -nfs $(SRCDIR)/Makefile . ; fi
$(Q)if [ ! -f $(notdir BSDmakefile) ]; then ln -nfs $(SRCDIR)/BSDmakefile . ; fi
$(Q)MAKEFLAGS= $(BSDMAKE)
# install module in $(RTE_OUTPUT)/kmod
$(RTE_OUTPUT)/kmod/$(MODULE).ko: $(MODULE).ko
$(Q)echo INSTALL-MODULE $(MODULE).ko
$(Q)[ -d $(RTE_OUTPUT)/kmod ] || mkdir -p $(RTE_OUTPUT)/kmod
$(Q)cp -f $(MODULE).ko $(RTE_OUTPUT)/kmod
# install module
modules_install:
$(Q)MAKEFLAGS= $(BSDMAKE) install
.PHONY: clean
clean: _postclean
# do a make clean and remove links
.PHONY: doclean
doclean:
$(Q)if [ ! -f $(notdir Makefile) ]; then ln -nfs $(SRCDIR)/Makefile . ; fi
$(Q)$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR) clean
$(Q)$(foreach FILE,$(SRCS-y) $(SRCS-n) $(SRCS-),\
if [ -h $(notdir $(FILE)) ]; then rm -f $(notdir $(FILE)) ; fi ;)
$(Q)if [ -h $(notdir Makefile) ]; then rm -f $(notdir Makefile) ; fi
$(Q)rm -f $(_BUILD_TARGETS) $(_INSTALL_TARGETS) $(_CLEAN_TARGETS) \
$(INSTALL-FILES-all)
include $(RTE_SDK)/mk/internal/rte.install-post.mk
include $(RTE_SDK)/mk/internal/rte.clean-post.mk
include $(RTE_SDK)/mk/internal/rte.build-post.mk
include $(RTE_SDK)/mk/internal/rte.depdirs-post.mk
.PHONY: FORCE
FORCE:
endif
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