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# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
KERNELRELEASE ?= $(shell uname -r)
KERNELDIR ?= /lib/modules/$(KERNELRELEASE)/build
PREFIX ?= /usr
DESTDIR ?=
SRCDIR ?= $(PREFIX)/src
DKMSDIR ?= $(SRCDIR)/wireguard
DEPMOD ?= depmod
PWD := $(shell pwd)
all: module
debug: module-debug
ifneq ($(V),1)
MAKEFLAGS += --no-print-directory
endif
WIREGUARD_VERSION = $(patsubst v%,%,$(shell GIT_CEILING_DIRECTORIES="$(PWD)/../.." git describe --dirty 2>/dev/null))
module:
@$(MAKE) -C $(KERNELDIR) M=$(PWD) WIREGUARD_VERSION="$(WIREGUARD_VERSION)" modules
module-debug:
@$(MAKE) -C $(KERNELDIR) M=$(PWD) V=1 CONFIG_WIREGUARD_DEBUG=y WIREGUARD_VERSION="$(WIREGUARD_VERSION)" modules
clean:
@$(MAKE) -C $(KERNELDIR) M=$(PWD) clean
module-install:
@$(MAKE) -C $(KERNELDIR) M=$(PWD) WIREGUARD_VERSION="$(WIREGUARD_VERSION)" modules_install
$(DEPMOD) -a $(KERNELRELEASE)
install: module-install
rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) $(filter $(subst *,%,$2),$d))
DKMS_SOURCES := version.h Makefile Kbuild Kconfig dkms.conf $(filter-out version.h wireguard.mod.c tests/%,$(call rwildcard,,*.c *.h *.S *.pl *.include))
dkms-install: $(DKMS_SOURCES)
@$(foreach f,$(DKMS_SOURCES),install -v -m0644 -D $(f) $(DESTDIR)$(DKMSDIR)/$(f);)
style:
$(KERNELDIR)/scripts/checkpatch.pl -f --max-line-length=4000 --codespell --color=always $(filter-out wireguard.mod.c,$(wildcard *.c)) $(wildcard *.h) $(wildcard selftest/*.c)
check: clean
scan-build --html-title=wireguard-linux-compat -maxloop 100 --view --keep-going $(MAKE) module CONFIG_WIREGUARD_DEBUG=y C=2 CF="-D__CHECK_ENDIAN__"
coccicheck: clean
@$(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_WIREGUARD_DEBUG=y coccicheck MODE=report
cloc:
@cloc --skip-uniqueness --by-file --extract-with="$$(readlink -f ../kernel-tree-scripts/filter-compat-defines.sh) >FILE< > \$$(basename >FILE<)" $(filter-out wireguard.mod.c,$(wildcard *.c)) $(wildcard *.h)
-include tests/debug.mk
.PHONY: all module module-debug module-install install dkms-install clean cloc check style
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