# libwolfssl Linux kernel module Makefile (wraps Kbuild makefile)

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
ifdef KERNEL_OPT
    WOLFSSL_CFLAGS += $(KERNEL_OPT)
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)
	@echo Linux kernel module build succeeded.
	@echo Module is libwolfssl.ko in $(MODULE_TOP).

.PHONY: install
install:
	@echo Automatic Linux kernel module installation not yet supported.
	@echo Module is $(MODULE_TOP)/libwolfssl.ko
	@exit 1

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

.PHONY: dist
dist:

.PHONY: distdir
distdir: