1# Makefile to compile the helloworld app for esptool tests 2 3# Prefix for each cross compiler (can include a directory path) 4# These can be overriden via environment variables or on the make command line 5CROSS_8266 ?= xtensa-lx106-elf- 6CROSS_32 ?= xtensa-esp32-elf- 7CROSS_32S2 ?= xtensa-esp32s2-elf- 8CROSS_32S3 ?= xtensa-esp32s3-elf- 9CROSS_32C3 ?= riscv32-esp-elf- 10 11# Pass V=1 to see the commands being executed by make 12ifneq ("$(V)","1") 13Q = @ 14endif 15 16APP = hello_world 17SRCS = main.c 18 19BUILD_DIR = build 20 21APP_ELF_8266 = $(BUILD_DIR)/$(APP)_8266.elf 22APP_ELF_32 = $(BUILD_DIR)/$(APP)_32.elf 23APP_ELF_32S2 = $(BUILD_DIR)/$(APP)_32s2.elf 24APP_ELF_32S3_BETA_2 = $(BUILD_DIR)/$(APP)_32s3beta2.elf 25APP_ELF_32S3 = $(BUILD_DIR)/$(APP)_32s3.elf 26APP_ELF_32C3 = $(BUILD_DIR)/$(APP)_32c3.elf 27 28.PHONY: all clean 29 30all: $(APP_ELF_8266) $(APP_ELF_32) $(APP_ELF_32S2) 31 32$(BUILD_DIR): 33 $(Q) mkdir $@ 34 35CFLAGS = -std=c99 -Wall -Werror -Os \ 36 -mtext-section-literals -mlongcalls -nostdlib -fno-builtin -flto \ 37 -Wl,-static -g -ffunction-sections -Wl,--gc-sections -Iinclude -Lld 38CFLAGS_ESP32C3 = -std=c99 -Wall -Werror -Os \ 39 -march=rv32imc -msmall-data-limit=0 \ 40 -nostdlib -fno-builtin -flto \ 41 -Wl,-static -g -ffunction-sections -Wl,--gc-sections -Iinclude -Lld 42LDLIBS = -lgcc 43 44$(APP_ELF_8266): $(SRCS) $(SRCS_8266) $(BUILD_DIR) ld/app_8266.ld | Makefile 45 @echo " CC(8266) $^ -> $@" 46 $(Q) $(CROSS_8266)gcc $(CFLAGS) -DESP8266=1 -Tapp_8266.ld -Wl,-Map=$(@:.elf=.map) -o $@ $(filter %.c, $^) $(LDLIBS) 47 48$(APP_ELF_32): $(SRCS) $(BUILD_DIR) ld/app_32.ld | Makefile 49 @echo " CC(32) $^ -> $@" 50 $(Q) $(CROSS_32)gcc $(CFLAGS) -DESP32=1 -Tapp_32.ld -Wl,-Map=$(@:.elf=.map) -o $@ $(filter %.c, $^) $(LDLIBS) 51 52$(APP_ELF_32S2): $(SRCS) $(BUILD_DIR) ld/app_32s2.ld 53 @echo " CC(32S2) $^ -> $@" 54 $(Q) $(CROSS_32S2)gcc $(CFLAGS) -DESP32S2=1 -Tapp_32s2.ld -Wl,-Map=$(@:.elf=.map) -o $@ $(filter %.c, $^) $(LDLIBS) 55 56$(APP_ELF_32S3_BETA_2): $(SRCS) $(BUILD_DIR) ld/app_32s3_beta_2.ld 57 @echo " CC(32S3) $^ -> $@" 58 $(Q) $(CROSS_32S3)gcc $(CFLAGS) -DESP32S3=1 -Tapp_32s3.ld -Wl,-Map=$(@:.elf=.map) -o $@ $(filter %.c, $^) $(LDLIBS) 59 60$(APP_ELF_32S3): $(SRCS) $(BUILD_DIR) ld/app_32s3.ld 61 @echo " CC(32S3) $^ -> $@" 62 $(Q) $(CROSS_32S3)gcc $(CFLAGS) -DESP32S3=1 -Tapp_32s3.ld -Wl,-Map=$(@:.elf=.map) -o $@ $(filter %.c, $^) $(LDLIBS) 63 64$(APP_ELF_32C3): $(SRCS) $(BUILD_DIR) ld/app_32c3.ld 65 @echo " CC(32C3) $^ -> $@" 66 $(Q) $(CROSS_32C3)gcc $(CFLAGS_ESP32C3) -DESP32C3=1 -Tapp_32c3.ld -Wl,-Map=$(@:.elf=.map) -o $@ $(filter %.c, $^) $(LDLIBS) 67 68clean: 69 $(Q) rm -rf $(BUILD_DIR) 70