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# libwolfssl Linux kernel module Makefile (wraps Kbuild-native makefile)
#
# Copyright (C) 2006-2022 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 libwolfssl.ko.signed
.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_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -Wno-declaration-after-statement -Wno-redundant-decls -DLIBWOLFSSL_GLOBAL_EXTRA_CFLAGS="\" $(KERNEL_EXTRA_CFLAGS)\""
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
ifeq "$(ENABLED_LINUXKM_PIE)" "yes"
WOLFCRYPT_PIE_FILES := linuxkm/pie_first.o $(filter wolfcrypt/src/%,$(WOLFSSL_OBJ_FILES)) linuxkm/pie_redirect_table.o linuxkm/pie_last.o
WOLFSSL_OBJ_FILES := $(WOLFCRYPT_PIE_FILES) $(filter-out $(WOLFCRYPT_PIE_FILES),$(WOLFSSL_OBJ_FILES))
endif
export WOLFSSL_CFLAGS WOLFSSL_ASFLAGS WOLFSSL_OBJ_FILES WOLFCRYPT_PIE_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 $(SRC_TOP)/Kbuild; fi
ifeq "$(ENABLED_LINUXKM_PIE)" "yes"
+$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) $(KBUILD_EXTRA_FLAGS) CC_FLAGS_FTRACE=
else
+$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(SRC_TOP) $(KBUILD_EXTRA_FLAGS)
endif
libwolfssl.ko.signed: libwolfssl.ko
@cd '$(KERNEL_ROOT)' || exit $$?; \
while read configline; do \
case "$$configline" in \
CONFIG_MODULE_SIG*=*) \
declare "$${configline%=*}"="$${configline#*=}" \
;; \
esac; \
done < .config || exit $$?; \
if [[ "$${CONFIG_MODULE_SIG}" = "y" && -n "$${CONFIG_MODULE_SIG_KEY}" && \
-n "$${CONFIG_MODULE_SIG_HASH}" && ( ! -f '$(MODULE_TOP)/$@' || \
'$(MODULE_TOP)/$<' -nt '$(MODULE_TOP)/$@' ) ]]; then \
CONFIG_MODULE_SIG_KEY="$${CONFIG_MODULE_SIG_KEY#\"}"; \
CONFIG_MODULE_SIG_KEY="$${CONFIG_MODULE_SIG_KEY%\"}"; \
CONFIG_MODULE_SIG_HASH="$${CONFIG_MODULE_SIG_HASH#\"}"; \
CONFIG_MODULE_SIG_HASH="$${CONFIG_MODULE_SIG_HASH%\"}"; \
cp -p '$(MODULE_TOP)/$<' '$(MODULE_TOP)/$@' || exit $$?; \
./scripts/sign-file "$${CONFIG_MODULE_SIG_HASH}" \
"$${CONFIG_MODULE_SIG_KEY}" \
"$${CONFIG_MODULE_SIG_KEY/%.pem/.x509}" \
'$(MODULE_TOP)/$@'; \
sign_file_exitval=$$?; \
if [[ $$sign_file_exitval != 0 ]]; then \
$(RM) -f '$(MODULE_TOP)/$@'; \
exit $$sign_file_exitval; \
fi; \
if [[ "$(quiet)" != "silent_" ]]; then \
echo " Module $@ signed by $${CONFIG_MODULE_SIG_KEY}."; \
fi \
fi
.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
# note, must supply $(MODULE_TOP) as the src value for clean so that Kbuild is included, else
# the top Makefile (which is not for the kernel build) would be included here.
clean:
+$(MAKE) -C $(KERNEL_ROOT) M=$(MODULE_TOP) src=$(MODULE_TOP) clean
.PHONY: check
check:
.PHONY: distclean
distclean: clean
.PHONY: dist
dist:
.PHONY: distdir
distdir:
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