# Also see "include/mbedtls/config.h"

CFLAGS	?= -O2
WARNING_CFLAGS ?=  -Wall -W -Wdeclaration-after-statement
LDFLAGS ?=

# Check test environment. If ../library is available then Mbed TLS is used.
# Otherwise Mbed OS environment is used.
DIR_FOR_MBED_TLS_ENV=../library
ifneq "$(wildcard $(DIR_FOR_MBED_TLS_ENV) )" ""
	# Set include dirs for Mbed TLS test environment
	INCLUDE_DIRS=-I../include
else
	# Set include dirs for Mbed OS test environment
	INCLUDE_DIRS=-I../inc
	CFLAGS += "-DMBEDTLS_CONFIG_FILE=\"mbedtls/test_config.h\""
endif

LOCAL_CFLAGS = $(WARNING_CFLAGS) $(INCLUDE_DIRS) -D_FILE_OFFSET_BITS=64

LOCAL_LDFLAGS =

ifdef DEBUG
LOCAL_CFLAGS += -g3
endif

# MicroBlaze specific options:
# CFLAGS += -mno-xl-soft-mul -mxl-barrel-shift

# To compile on Plan9:
# CFLAGS += -D_BSD_EXTENSION

# if were running on Windows build for Windows
ifdef WINDOWS
WINDOWS_BUILD=1
else ifeq ($(shell uname -s),Darwin)
ifeq ($(AR),ar)
APPLE_BUILD ?= 1
endif
endif

# To compile as a shared library:
ifdef SHARED
# all code is position-indep with mingw, avoid warning about useless flag
ifndef WINDOWS_BUILD
LOCAL_CFLAGS += -fPIC -fpic
endif
endif

SOEXT_TLS=so.12
SOEXT_X509=so.0
SOEXT_CRYPTO=so.3

# Set AR_DASH= (empty string) to use an ar implementation that does not accept
# the - prefix for command line options (e.g. llvm-ar)
AR_DASH ?= -

ARFLAGS = $(AR_DASH)src
ifdef APPLE_BUILD
ifneq ($(APPLE_BUILD),0)
ARFLAGS = $(AR_DASH)Src
RLFLAGS = -no_warning_for_no_symbols -c
RL ?= ranlib
endif
endif

DLEXT ?= so
ifdef WINDOWS_BUILD
# Windows shared library extension:
DLEXT = dll
else ifdef APPLE_BUILD
ifneq ($(APPLE_BUILD),0)
# Mac OS X shared library extension:
DLEXT = dylib
endif
endif

VPATH = ../tinycrypt

OBJS_CRYPTO=	aes.o		aesni.o		arc4.o		\
		aria.o		asn1parse.o	asn1write.o	\
		base64.o	bignum.o	blowfish.o	\
		camellia.o	ccm.o		chacha20.o	\
		chachapoly.o	cipher.o	cipher_wrap.o	\
		cmac.o		ctr_drbg.o	des.o		\
		dhm.o		ecdh.o		ecdsa.o		\
		ecjpake.o	ecp.o				\
		ecp_curves.o	entropy.o	entropy_poll.o	\
		error.o		gcm.o		havege.o	\
		hkdf.o						\
		hmac_drbg.o	md.o		md2.o		\
		md4.o		md5.o				\
		memory_buffer_alloc.o		nist_kw.o	\
		oid.o		padlock.o	pem.o		\
		pk.o		pkcs12.o			\
		pkcs5.o		pkparse.o	pkwrite.o	\
		platform.o	platform_util.o	poly1305.o	\
		ripemd160.o	rsa_internal.o	rsa.o  		\
		sha1.o		sha256.o	sha512.o	\
		threading.o	timing.o	version.o	\
		version_features.o		xtea.o		\
		ecc.o		ecc_dh.o	ecc_dsa.o

OBJS_X509=	certs.o		pkcs11.o	x509.o

OBJS_TLS=	debug.o		net_sockets.o		\
		ssl_cache.o	ssl_ciphersuites.o	\
		ssl_cli.o	ssl_cookie.o		\
		ssl_srv.o	ssl_ticket.o		\
		ssl_tls.o

.SILENT:

.PHONY: all static shared clean

ifndef SHARED
all: static
else
all: shared static
endif

static: libmbedcrypto.a libmbedx509.a libmbedtls.a

shared: libmbedcrypto.$(DLEXT) libmbedx509.$(DLEXT) libmbedtls.$(DLEXT)

# tls
libmbedtls.a: $(OBJS_TLS)
	echo "  AR    $@"
	$(AR) $(ARFLAGS) $@ $(OBJS_TLS)
ifdef APPLE_BUILD
ifneq ($(APPLE_BUILD),0)
	echo "  RL    $@"
	$(RL) $(RLFLAGS) $@
endif
endif

libmbedtls.$(SOEXT_TLS): $(OBJS_TLS) libmbedx509.so
	echo "  LD    $@"
	$(CC) -shared -Wl,-soname,$@ -L. -lmbedcrypto -lmbedx509 $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_TLS)

libmbedtls.so: libmbedtls.$(SOEXT_TLS)
	echo "  LN    $@ -> $<"
	ln -sf $< $@

libmbedtls.dylib: $(OBJS_TLS) libmbedx509.dylib
	echo "  LD    $@"
	$(CC) -dynamiclib -L. -lmbedcrypto -lmbedx509 $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_TLS)

libmbedtls.dll: $(OBJS_TLS) libmbedx509.dll
	echo "  LD    $@"
	$(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_TLS) -lws2_32 -lwinmm -lgdi32 -L. -lmbedcrypto -lmbedx509 -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS)

# x509
libmbedx509.a: $(OBJS_X509)
	echo "  AR    $@"
	$(AR) $(ARFLAGS) $@ $(OBJS_X509)
ifdef APPLE_BUILD
ifneq ($(APPLE_BUILD),0)
	echo "  RL    $@"
	$(RL) $(RLFLAGS) $@
endif
endif

libmbedx509.$(SOEXT_X509): $(OBJS_X509) libmbedcrypto.so
	echo "  LD    $@"
	$(CC) -shared -Wl,-soname,$@ -L. -lmbedcrypto $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_X509)

libmbedx509.so: libmbedx509.$(SOEXT_X509)
	echo "  LN    $@ -> $<"
	ln -sf $< $@

libmbedx509.dylib: $(OBJS_X509) libmbedcrypto.dylib
	echo "  LD    $@"
	$(CC) -dynamiclib -L. -lmbedcrypto  $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_X509)

libmbedx509.dll: $(OBJS_X509) libmbedcrypto.dll
	echo "  LD    $@"
	$(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_X509) -lws2_32 -lwinmm -lgdi32 -L. -lmbedcrypto -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS)

# crypto
libmbedcrypto.a: $(OBJS_CRYPTO)
	echo "  AR    $@"
	$(AR) $(ARFLAGS) $@ $(OBJS_CRYPTO)
ifdef APPLE_BUILD
ifneq ($(APPLE_BUILD),0)
	echo "  RL    $@"
	$(RL) $(RLFLAGS) $@
endif
endif

libmbedcrypto.$(SOEXT_CRYPTO): $(OBJS_CRYPTO)
	echo "  LD    $@"
	$(CC) -shared -Wl,-soname,$@ $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_CRYPTO)

libmbedcrypto.so: libmbedcrypto.$(SOEXT_CRYPTO)
	echo "  LN    $@ -> $<"
	ln -sf $< $@

libmbedcrypto.dylib: $(OBJS_CRYPTO)
	echo "  LD    $@"
	$(CC) -dynamiclib $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS_CRYPTO)

libmbedcrypto.dll: $(OBJS_CRYPTO)
	echo "  LD    $@"
	$(CC) -shared -Wl,-soname,$@ -Wl,--out-implib,$@.a -o $@ $(OBJS_CRYPTO) -lws2_32 -lwinmm -lgdi32 -static-libgcc $(LOCAL_LDFLAGS) $(LDFLAGS)

.c.o:
	echo "  CC    $<"
	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) -c $<

clean:
ifndef WINDOWS
	rm -f *.o *.su libmbed*
else
	del /Q /F *.o *.su libmbed*
endif