# libwolfssl Linux kernel module Makefile (wraps Kbuild-native makefile)
#
# Copyright (C) 2006-2021 wolfSSL Inc.
#
# This file is part of wolfSSL.
#
# wolfSSL is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# wolfSSL is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
#/

SHELL=/bin/bash

all: libwolfssl.ko

.PHONY: libwolfssl.ko

ifndef MODULE_TOP
    MODULE_TOP=$(CURDIR)
endif

ifndef SRC_TOP
    SRC_TOP=$(shell dirname $(MODULE_TOP))
endif

WOLFSSL_CFLAGS=-DHAVE_CONFIG_H -I$(SRC_TOP) -DBUILDING_WOLFSSL $(AM_CFLAGS) $(CFLAGS) -Wno-declaration-after-statement -Wno-redundant-decls -ffreestanding
ifdef KERNEL_EXTRA_CFLAGS
    WOLFSSL_CFLAGS += $(KERNEL_EXTRA_CFLAGS)
endif

WOLFSSL_ASFLAGS=-DHAVE_CONFIG_H -I$(SRC_TOP) -DBUILDING_WOLFSSL $(AM_CCASFLAGS) $(CCASFLAGS)

WOLFSSL_OBJ_FILES=$(patsubst %.lo, %.o, $(patsubst src/src_libwolfssl_la-%, src/%, $(patsubst src/libwolfssl_la-%, src/%, $(patsubst wolfcrypt/src/src_libwolfssl_la-%, wolfcrypt/src/%, $(src_libwolfssl_la_OBJECTS)))))

ifeq "$(ENABLED_CRYPT_TESTS)" "yes"
    WOLFSSL_OBJ_FILES+=wolfcrypt/test/test.o
else
    WOLFSSL_CFLAGS+=-DNO_CRYPT_TEST
endif

export WOLFSSL_CFLAGS WOLFSSL_ASFLAGS WOLFSSL_OBJ_FILES

libwolfssl.ko:
	@if test -z "$(KERNEL_ROOT)"; then echo '$$KERNEL_ROOT is unset' >&2; exit 1; fi
	@if test -z "$(AM_CFLAGS)$(CFLAGS)"; then echo '$$AM_CFLAGS and $$CFLAGS are both unset.' >&2; exit 1; fi
	@if test -z "$(src_libwolfssl_la_OBJECTS)"; then echo '$$src_libwolfssl_la_OBJECTS is unset.' >&2; exit 1; fi
	@mkdir -p linuxkm src wolfcrypt/src wolfcrypt/test
	@if test ! -h $(SRC_TOP)/Kbuild; then ln -s $(MODULE_TOP)/Kbuild $(SRC_TOP)/Kbuild; fi
	+make -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP)

.PHONY: install modules_install
install modules_install:
	+make -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) INSTALL_MOD_DIR=wolfssl modules_install

.PHONY: clean
clean:
	+make -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) clean

.PHONY: dist
dist:

.PHONY: distdir
distdir:
