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makefile
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######################################
# building variables
######################################
# extra defined parameters users want to specify
EXTRA_C_DEFS ?=
DEBUG ?= no
######################################
# source
######################################
# C sources
C_SOURCES = \
src/mqtt/mqtt_client_conn.c \
src/mqtt/mqtt_packet.c \
src/mqtt/mqtt_util.c \
src/mqtt/mqtt_drbg.c \
src/mqtt/mqtt_auth.c \
src/tls/core/tls_util.c \
src/tls/core/tls_client.c \
src/tls/core/tls_handshake.c \
src/tls/core/tls_hkdf.c \
src/tls/core/tls_key_exchange.c \
src/tls/core/tls_key_schedule.c \
src/tls/core/tls_pkt_decode.c \
src/tls/core/tls_pkt_decode_ext.c \
src/tls/core/tls_pkt_encode.c \
src/tls/core/tls_pkt_encode_ext.c \
src/tls/core/tls_pkt_transmit.c \
src/tls/crypto/tls_ciphersuite.c \
src/tls/crypto/tls_encrypt.c \
src/tls/crypto/tls_hash.c \
src/tls/crypto/tls_asn1.c \
src/tls/crypto/tls_x509.c \
src/tls/crypto/tls_x509_ext.c \
src/tls/crypto/tls_certs.c \
src/tls/crypto/tls_rsa.c \
# ASM sources
ASM_SOURCES =
# macros for gcc
# AS defines
AS_DEFS =
# C defines
C_DEFS = $(foreach def, $(EXTRA_C_DEFS), $(addprefix -D, $(def)) )
# C includes
C_INCLUDES = -Iinclude \
BUILD_DIR_TOP=build
# include generated build script
include ./generate/auto/makefile
CODEGEN_SCRIPT_CMD ?= python3
#---------------------------------------------------------
# different files & paths for unit test, integration test
#---------------------------------------------------------
ifeq ($(MAKECMDGOALS), utest_helper) # if unit test is enabled
# TODO: complete unit test after completing integration tests.
BUILD_DIR=$(BUILD_DIR_TOP)/utest
TEST_ENTRY_SOURCES += $(addprefix tests/unit/, $(C_SOURCES:src/%.c=%_ut.c))
else
BUILD_DIR=$(BUILD_DIR_TOP)/itest
ifeq ($(MAKECMDGOALS), demo)
TEST_COMMON_SOURCES = tests/integration/pattern_generator.c \
generate/src/mqtt_generate.c
TEST_ENTRY_SOURCES += tests/integration/mqtt_pub_subs_test.c \
tests/integration/mqtt_connect_test.c \
tests/integration/mqtt_publish_test.c \
tests/integration/mqtt_subscribe_test.c \
tests/integration/rand.c
C_INCLUDES += -Itests/integration
endif #### end of demo
endif #### end of utest_helper
TEST_ENTRY_OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(TEST_ENTRY_SOURCES:.c=.o)))
TEST_COMMON_OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(TEST_COMMON_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(TEST_ENTRY_SOURCES)))
vpath %.c $(sort $(dir $(TEST_COMMON_SOURCES)))
#--------------------------------------------------------------------------------------
# The gcc compiler bin path can be either defined in make command via GCC_PATH variable
# (> make GCC_PATH=xxx) either it can be added to the PATH environment variable.
ifdef GCC_PATH
CC = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)gcc
AS = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)gcc -x assembler-with-cpp
CP = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)objcopy
SZ = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)size
AR = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)ar
CCOV = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)gcov
DUMP = $(GCC_PATH)/$(C_TOOLCHAIN_PREFIX)objdump
else
CC = $(C_TOOLCHAIN_PREFIX)gcc
AS = $(C_TOOLCHAIN_PREFIX)gcc -x assembler-with-cpp
CP = $(C_TOOLCHAIN_PREFIX)objcopy
SZ = $(C_TOOLCHAIN_PREFIX)size
AR = $(C_TOOLCHAIN_PREFIX)ar
CCOV = $(C_TOOLCHAIN_PREFIX)gcov
DUMP = $(C_TOOLCHAIN_PREFIX)objdump
endif
HEX = $(CP) -O ihex
BIN = $(CP) -O binary -S
# optimization
OPT = -Og
# compile gcc flags
ASFLAGS += $(CPU_ARCH_FLAGS) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
CFLAGS += $(CPU_ARCH_FLAGS) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections -Wint-to-pointer-cast
ifeq ($(DEBUG), yes)
CFLAGS += -g -gdwarf-2
endif
# Generate dependency information
CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
#######################################
# LDFLAGS
#######################################
# libraries
LIBS += -lc -lm $(EXTRA_LIBS)
LIBDIR =
# TODO: xxx.map should be platform-specific
LDFLAGS = $(CPU_ARCH_FLAGS) $(LD_SPECS_FILE) $(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$<.map,--cref -Wl,--gc-sections
ifeq ($(MAKECMDGOALS), utest_helper) # if unit test is enabled
CFLAGS += -coverage
LDFLAGS += -coverage
endif
#######################################
# build the application
#######################################
# collect C/assembly objects compiled for library (may be built by cross-compile toolchain)
C_ASM_OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
C_ASM_OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES:.s=.o)))
vpath %.s $(sort $(dir $(ASM_SOURCES)))
TARGET_LIB_NAME=libmqttclient.a
TARGET_LIB_PATH=$(BUILD_DIR)/$(TARGET_LIB_NAME)
# ----------------- Goals -------------------
gen_lib: $(BUILD_DIR) $(TARGET_LIB_PATH)
# for unit test, no need to build library and test images using cross-compiler
# TODO: for few integration tests, no need to build test images with cross-compiler
demo : $(TARGET_LIB_PATH) $(TEST_COMMON_OBJECTS) $(TEST_ENTRY_OBJECTS) \
$(foreach atest, $(TEST_ENTRY_OBJECTS), $(atest:.o=).elf $(atest:.o=).hex $(atest:.o=).text $(atest:.o=).bin)
utest_helper : $(C_ASM_OBJECTS) $(TEST_COMMON_OBJECTS) $(TEST_ENTRY_OBJECTS)
$(foreach atest, $(TEST_ENTRY_OBJECTS), $(CC) $(LDFLAGS) $(atest) $(atest:%_ut.o=%.o) $(TEST_COMMON_OBJECTS) -o $(atest:.o=.out);)
$(foreach atest, $(TEST_ENTRY_OBJECTS), $(atest:.o=.out);)
utest:
@make file_subst -C third_party;
@make utest_helper EXTRA_C_DEFS="MQTT_UNIT_TEST_MODE" DEBUG=$(DEBUG);
$(BUILD_DIR)/%.o: %.c makefile | $(BUILD_DIR)
$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
$(BUILD_DIR)/%.o: %.s makefile | $(BUILD_DIR)
$(AS) -c $(CFLAGS) $< -o $@
$(TARGET_LIB_PATH): $(C_ASM_OBJECTS)
$(AR) rcs $@ $^
@rm -rf $(BUILD_DIR_TOP)/$(TARGET_LIB_NAME);
@ln -s itest/$(TARGET_LIB_NAME) $(BUILD_DIR_TOP)/$(TARGET_LIB_NAME);
# --------- for generating executable test cases ---------
%.elf: %.o $(TEST_COMMON_OBJECTS) $(TARGET_LIB_PATH) $(THIRD_PARTY_LIBS_PATH)
$(CC) $^ $(LDFLAGS) -o $@
$(SZ) $@
%.hex: %.elf | $(BUILD_DIR)
$(HEX) $< $@
%.bin: %.elf | $(BUILD_DIR)
$(BIN) $< $@
%.text: %.elf | $(BUILD_DIR)
$(DUMP) -Dh $< > $@
$(BUILD_DIR):
@mkdir -p $@
#######################################
# clean up
#######################################
clean:
-rm -fR $(BUILD_DIR_TOP)
download_3party:
@make download_3party -C third_party
config:
@make config -C auto/codegen/script CODEGEN_SCRIPT_CMD="$(CODEGEN_SCRIPT_CMD)"
# optional function for those who use code navigation tools e.g. ctags
update_navigator:
@rm -rf ./tags; ctags -R ./generate ./include ./src ./tests/integration ./third_party
dbg_server:
@$(DBG_SERVER_CMD)
dbg_client:
@$(DBG_CLIENT_CMD)