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- # libwolfssl Linux kernel module Makefile (wraps Kbuild-native makefile)
- #
- # Copyright (C) 2006-2024 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=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 "$(ENABLED_LINUXKM_BENCHMARKS)" "yes"
- WOLFSSL_OBJ_FILES+=wolfcrypt/benchmark/benchmark.o
- endif
- ifeq "$(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
- ifneq "$(host_triplet)" "$(build_triplet)"
- CROSS_COMPILE := 'CROSS_COMPILE=$(host_triplet)-'
- endif
- OVERRIDE_PATHS :=
- ifdef CC
- ifneq "$(CC)" "cc"
- OVERRIDE_PATHS := $(OVERRIDE_PATHS) 'CC=$(CC)'
- endif
- endif
- ifdef AS
- ifneq "$(AS)" "as"
- OVERRIDE_PATHS := $(OVERRIDE_PATHS) 'AS=$(AS)'
- endif
- endif
- ifdef LD
- ifneq "$(LD)" "ld"
- OVERRIDE_PATHS := $(OVERRIDE_PATHS) 'LD=$(LD)'
- endif
- endif
- 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
- # after commit 9a0ebe5011 (6.10), sources must be in $(obj). work around this by making links to all needed sources:
- @mkdir -p '$(MODULE_TOP)/linuxkm'
- @test '$(MODULE_TOP)/module_hooks.c' -ef '$(MODULE_TOP)/linuxkm/module_hooks.c' || cp --no-dereference --symbolic-link --no-clobber '$(MODULE_TOP)'/*.[ch] '$(MODULE_TOP)/linuxkm/'
- @test '$(SRC_TOP)/wolfcrypt/src/wc_port.c' -ef '$(MODULE_TOP)/wolfcrypt/src/wc_port.c' || cp --no-dereference --symbolic-link --no-clobber --recursive '$(SRC_TOP)/wolfcrypt' '$(MODULE_TOP)/'
- @test '$(SRC_TOP)/src/wolfio.c' -ef '$(MODULE_TOP)/src/wolfio.c' || cp --no-dereference --symbolic-link --no-clobber --recursive '$(SRC_TOP)/src' '$(MODULE_TOP)/'
- ifeq "$(ENABLED_LINUXKM_PIE)" "yes"
- +$(MAKE) ARCH='$(KERNEL_ARCH)' $(OVERRIDE_PATHS) $(CROSS_COMPILE) -C '$(KERNEL_ROOT)' M='$(MODULE_TOP)' $(KBUILD_EXTRA_FLAGS) CC_FLAGS_FTRACE=
- else
- +$(MAKE) ARCH='$(KERNEL_ARCH)' $(OVERRIDE_PATHS) $(CROSS_COMPILE) -C '$(KERNEL_ROOT)' M='$(MODULE_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:
- $(RM) -rf '$(MODULE_TOP)/linuxkm'
- $(RM) -rf '$(MODULE_TOP)/wolfcrypt'
- $(RM) -rf '$(MODULE_TOP)/src'
- +$(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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