From ae4978977d3a2ca1e9493c1152aed35078fd846e Mon Sep 17 00:00:00 2001
From: Aditya Naik
Date: Tue, 20 Apr 2021 13:11:16 -0400
Subject: Cleanup and README

---
 Makefile | 143 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 Makefile

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..e8d9225
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,143 @@
+# Target also determines which file is being compiled
+TARGET = main
+PORT   = posix
+
+######################################
+# building variables
+######################################
+# debug build?
+DEBUG = 1
+# optimization
+OPT = -Og
+
+
+#######################################
+# paths
+#######################################
+# Build path
+BUILD_DIR = build
+
+######################################
+# source
+######################################
+# C sources for all ports
+C_SOURCES =  \
+lib/FreeRTOS/FreeRTOS/Source/tasks.c \
+lib/FreeRTOS/FreeRTOS/Source/list.c \
+lib/FreeRTOS/FreeRTOS/Source/queue.c \
+lib/FreeRTOS/FreeRTOS/Source/stream_buffer.c \
+lib/FreeRTOS/FreeRTOS/Source/timers.c \
+
+
+# set the main C source based on whether we're compiling the master or slave
+C_SOURCES+=$(addprefix src/, $(TARGET).c)
+
+#######################################
+# binaries
+#######################################
+
+# 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 = $(GCC_PATH)/$(PREFIX)gcc
+AS = $(GCC_PATH)/$(PREFIX)gcc -x assembler-with-cpp
+CP = $(GCC_PATH)/$(PREFIX)objcopy
+SZ = $(GCC_PATH)/$(PREFIX)size
+else
+CC = $(PREFIX)gcc
+AS = $(PREFIX)gcc -x assembler-with-cpp
+CP = $(PREFIX)objcopy
+SZ = $(PREFIX)size
+endif
+HEX = $(CP) -O ihex
+BIN = $(CP) -O binary -S
+
+#######################################
+# CFLAGS
+#######################################
+# macros for gcc
+# AS defines
+AS_DEFS = 
+
+# AS includes
+AS_INCLUDES = 
+
+# General C includes for all ports. Since CMSIS is being included, that means this is restricted to ARM ports
+C_INCLUDES =  \
+-Iinclude \
+-Ilib/cmsis \
+-Ilib/nanopb \
+-Ilib/FreeRTOS/FreeRTOS/Source/include/ \
+
+# Define the chip we're building for and include its makefile
+# Variables ASM_FILE, LDFLAGS, PREFIX will be defined in the included port makefile
+# Port-specific stream functions (ex. stream_i2c, stream_stdio) are included by the port makefile
+PORT_DIR = ports/$(PORT)
+include $(PORT_DIR)/makefile
+ASM_SOURCES=$(PORT_DIR)/$(ASM_FILE)
+
+# compile gcc flags
+ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
+
+CFLAGS = $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
+
+ifeq ($(DEBUG), 1)
+CFLAGS += -g -gdwarf-2
+endif
+
+# Generate dependency information
+CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)"
+
+#######################################
+# LDFLAGS
+#######################################
+
+# libraries
+LIBS = -lc -lm -lpthread -lrt
+LIBDIR = 
+
+# default action: build all
+all: $(BUILD_DIR)/$(TARGET).elf $(BUILD_DIR)/$(TARGET).hex $(BUILD_DIR)/$(TARGET).bin
+
+
+#######################################
+# build the application
+#######################################
+# list of objects
+OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
+vpath %.c $(sort $(dir $(C_SOURCES)))
+# list of ASM program objects
+OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES:.s=.o)))
+vpath %.s $(sort $(dir $(ASM_SOURCES)))
+
+$(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 $@
+
+$(BUILD_DIR)/$(TARGET).elf: $(OBJECTS) makefile
+	$(CC) $(OBJECTS) $(LDFLAGS) -o $@
+	$(SZ) $@
+
+$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
+	$(HEX) $< $@
+
+$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf | $(BUILD_DIR)
+	$(BIN) $< $@	
+
+$(BUILD_DIR):
+	mkdir $@		
+
+#######################################
+# clean up
+#######################################
+clean:
+	-rm -fR $(BUILD_DIR)/*
+
+#######################################
+# dependencies
+#######################################
+-include $(wildcard $(BUILD_DIR)/*.d)
+
+# *** EOF ***
-- 
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