Makefile for PSoC Creator projects in GNU ARM Eclipse
This is a Makefile suitable for PSoC Creator projects that uses build rules and GCC’s autodependency feature. By passing in command line arguments, this makefile will build a Release or Debug binary.
See the section at the bottom of the listing, titled Defaults, for other options.
NOTE This makefile is specialized for the CY8C4247LQI-BL483 variant. You should customize this for your board as necessary.
#########################################################################################################################################
# PSoC 4 Makefile
# - This makefile builds a PSoC Creator project with Debug and Release versions.
# - It will also flash the PSoC using J-Link. Haven't yet added this for the discovery version that uses an on-board JTAG programmer.
# - It uses GCC's autodependency feature to maintain a list of dependencies for each source file in the build directory -- this means
# it will recompile only the files that need to be recompiled, automatically.
# - The majority of the makefile is a defined variable that is evaluated with a set of parameters that can either be set at the bottom
# of this file or passed in via the command line. Evaluation happens at the end of the file, with defaults defined just before.
#########################################################################################################################################
# Use Bash
SHELL = /bin/sh
# Functions
find_includes_in_dir = $(shell find $(1) -name "*.h" | sed 's|/[^/]*$$||' | sort -u)
# -----------------------------------------------------------------------------
# Configuration Constants -- These are static and should not be discovered
# using the greedy 'find's in the Build Configuration Rule defined below.
# -----------------------------------------------------------------------------
CYDEVICE := CY8C4247LQI-BL483
CYDSN_DIR := PSoC_Creator_Project_Directory.cydsn
CYGENERATED_SOURCE := $(CYDSN_DIR)/Generated_Source/PSoC4
LDSCRIPTS := $(addprefix -T, $(CYGENERATED_SOURCE)/cm0gcc.ld)
ASM_SRC := $(CYGENERATED_SOURCE)/CyBootAsmGnu.s
# -----------------------------------------------------------------------------------------------
# J-Link Configuration
# -----------------------------------------------------------------------------------------------
JLINK_ROOT ?= /Applications/SEGGER/JLink
JLINKEXE := $(JLINK_ROOT)/JLinkExe
JLINKGDBSERVER := $(JLINK_ROOT)/JLinkGDBServer
JLINKDEVICE := CY8C4247xxx-BLxxx
JLINKGDBCMD := $(JLINKGDBSERVER) -if SWD -device $(JLINKDEVICE) >/tmp/jlink.log 2>&1
# ---------------------------------------------------------------------
# Toolchain Configuration
# ---------------------------------------------------------------------
BINUTILS_ROOT ?= /usr/local/gcc-arm-none-eabi-5_3-2016q1
TOOLCHAIN := arm-none-eabi
CC := $(BINUTILS_ROOT)/bin/$(TOOLCHAIN)-gcc
CXX := $(BINUTILS_ROOT)/bin/$(TOOLCHAIN)-g++
AS := $(BINUTILS_ROOT)/bin/$(TOOLCHAIN)-as
OBJCOPY := $(BINUTILS_ROOT)/bin/$(TOOLCHAIN)-objcopy
SIZE := $(BINUTILS_ROOT)/bin/$(TOOLCHAIN)-size
CYELFTOOL := $(CYDSN_DIR)/Export/CyElfTool.exe
WINE := /usr/local/bin/wine
C_STANDARD := -std=gnu11
CXX_STANDARD := -std=gnu++11
# -----------------------------------------------------------------------------------------------------------------
# Defined Symbols
# -----------------------------------------------------------------------------------------------------------------
DEFS :=
#-DSTM32F437xx -DUSE_HAL_DRIVER -DARM_MATH_CM4 -D__FPU_PRESENT=1U -DHSE_VALUE=25000000
# ---------------------------------------------------------------------------------------------------------------------------------------
# Compiler & Linker Flags
# ---------------------------------------------------------------------------------------------------------------------------------------
# Flags sent to all tools in the Toolchain (except Assembler)
TOOLCHAIN_SETTINGS := -mcpu=cortex-m0 -march=armv6-m -mthumb
TOOLCHAIN_SETTINGS += -fmessage-length=0 -fsigned-char -ffunction-sections -fdata-sections -ffreestanding -fno-move-loop-invariants
# Assembler -- Required Flags
ASFLAGS += -mcpu=cortex-m0 -march=armv6-m -mthumb
ASFLAGS += $(addprefix -I, $(INC_DIRS))
# gcc flags
CFLAGS += $(TOOLCHAIN_SETTINGS) $(DEFS) $(addprefix -I, $(INC_DIRS))
CFLAGS += -Wall
CFLAGS += -Wextra
CFLAGS += -Wfatal-errors
CFLAGS += -Wpacked
CFLAGS += -Winline
CFLAGS += -Wfloat-equal
CFLAGS += -Wlogical-op
CFLAGS += -Wdisabled-optimization
CFLAGS += -Wno-unused-parameter
CFLAGS += -Wa,-alh=$(@:.o=.lst)
# C++ Compiler -- Required & Optimization Flags
CXXFLAGS += $(CFLAGS)
CXXFLAGS += -fabi-version=0
CXXFLAGS += -fno-rtti
CXXFLAGS += -fno-exceptions
CXXFLAGS += -fno-use-cxa-atexit
CXXFLAGS += -fno-threadsafe-statics
# C++ -- Warnings
CXXFLAGS += -Weffc++
CXXFLAGS += -Wfloat-equal
CXXFLAGS += -Wsign-promo
CXXFLAGS += -Wzero-as-null-pointer-constant
CXXFLAGS += -Woverloaded-virtual
CXXFLAGS += -Wsuggest-final-types
CXXFLAGS += -Wsuggest-final-methods
CXXFLAGS += -Wsuggest-override
CXXFLAGS += -Wsuggest-attribute=pure
CXXFLAGS += -Wsuggest-attribute=const
CXXFLAGS += -Wsuggest-attribute=noreturn
CXXFLAGS += -Wsuggest-attribute=format
CXXFLAGS += -Wmissing-format-attribute
CXXFLAGS += -Wold-style-cast
CXXFLAGS += -Wshadow
CXXFLAGS += -Wctor-dtor-privacy
CXXFLAGS += -Wstrict-null-sentinel
# Linker
LDFLAGS += $(TOOLCHAIN_SETTINGS) $(DEFS) -Xlinker --gc-sections --specs=nano.specs
# CyElfTool flags
CYFLAGS += --flash_row_size 128 --flash_size 131072
# -------------------------------------------------------------
# Build Type Modifiers
# -------------------------------------------------------------
# Debug
DEFS_DEBUG += -DDEBUG -DTRACE -DOS_USE_TRACE_ITM
CFLAGS_DEBUG += -ggdb -g3 -Og
LDFLAGS_DEBUG += --specs=rdimon.specs -Og
# Release
CFLAGS_RELEASE += -Os
LDFLAGS_RELEASE += --specs=nosys.specs
# -------------------------------------------------------------------------------
# J-Link Flash Command
# The following command string (between define/endef) flashes a code to a PSoC4
# The trick here is to define a multi-line variable in make and then export it
# to the subshell that will run JLinkExe
# -------------------------------------------------------------------------------
define JLINK_FLASH_PSoC4_CMD
speed 1000
if SWD
device $(JLINKDEVICE)
halt
r
erase
loadfile $(BUILD_DIR)/$(PRODUCT).hex
r
g
exit
endef
export JLINK_FLASH_PSoC4_CMD
#########################################################################################################################################
# RULE DEFINITIONS -- This section is generic
#########################################################################################################################################
# =======================================================================================================================================
# Build Configuration Rule
# - Generate build config using Product Root Directory ($1), Build Type ("Debug" or "Release") ($2)
# =======================================================================================================================================
define CONFIG_RULE
BUILD_DIR := $1/Build/$2
OBJ_DIR := $$(BUILD_DIR)/obj
INC_DIRS := $$(call find_includes_in_dir, $$(SRC_DIRS)) $(CYDSN_DIR)
HEADERS := $$(foreach dir, $$(SRC_DIRS), $$(shell find $$(dir) -name "*.h"))
C_SRC := $$(foreach dir, $$(SRC_DIRS), $$(shell find $$(dir) -name "*.c" -not -name "*main.c"))
CXX_SRC := $$(foreach dir, $$(SRC_DIRS), $$(shell find $$(dir) -name "*.cpp"))
CYLIBS := $$(shell find $$(CYDSN_DIR)/Export -name "*.a")
OBJECTS := $$(addprefix $$(OBJ_DIR)/, $$(C_SRC:.c=.o) $$(CXX_SRC:.cpp=.o) $$(ASM_SRC:.s=.o))
AUTODEPS := $$(OBJECTS:.o=.d)
DIRS := $$(BUILD_DIR) $$(sort $$(dir $$(OBJECTS)))
ifeq ($2, Release)
DEFS += $$(DEFS_RELEASE)
CFLAGS += $$(CFLAGS_RELEASE)
LDFLAGS += $$(LDFLAGS_RELEASE)
else
DEFS += $$(DEFS_DEBUG)
CFLAGS += $$(CFLAGS_DEBUG)
LDFLAGS += $$(LDFLAGS_DEBUG)
endif
endef
# =======================================================================================================================================
# End CONFIG_RULE
# =======================================================================================================================================
# =======================================================================================================================================
# Build Target Rule
# - Generate build config using Product Name ($1), Product Root Directory ($2), Build Type ("Debug" or "Release") ($3)
# =======================================================================================================================================
define BUILD_TARGET_RULE
$(eval $(call CONFIG_RULE,$2,$3))
all : $$(BUILD_DIR)/$1.hex
# Tool Invocations
%.hex : %.elf
@echo 'Invoking: CyElfTool.exe'
@WINEDEBUG=-all $$(WINE) $$(CYELFTOOL) -C $$(<) $$(CYFLAGS)
@WINEDEBUG=-all $$(WINE) $$(CYELFTOOL) -S $$(<)
@echo 'Finished building: $$@'
@echo ' '
@echo 'Invoking: Cross ARM GNU Print Size'
$$(SIZE) --format=berkeley $$<
@echo 'Finished building: $$@'
@echo ' '
$$(BUILD_DIR)/$1.elf : $$(OBJECTS) | $$(BUILD_DIR)
@echo 'Building $$(@)'
@echo 'Invoking: Cross ARM C++ Linker'
@touch cycodeshareexport.ld cycodeshareimport.ld
$$(CXX) \
-Xlinker -Map=$$(patsubst %.elf,%.map,$$(@)) \
$$(LDFLAGS) \
$$(LDSCRIPTS) \
-o $$(@) $$(OBJECTS) $$(CYLIBS)
@rm cycodeshareexport.ld cycodeshareimport.ld
@echo 'Finished building: $$@'
@echo ' '
$$(OBJECTS) : | $$(DIRS)
$$(DIRS) :
@echo Creating $$(@)
@mkdir -p $$(@)
$$(OBJ_DIR)/%.o : %.c
@echo Compiling $$(<F)
@$$(CC) $$(C_STANDARD) $$(CFLAGS) -c -MMD -MP $$< -o $$(@)
$$(OBJ_DIR)/%.o : %.cpp
@echo Compiling $$(<F)
@$$(CXX) $$(CXX_STANDARD) $$(CXXFLAGS) -c -MMD -MP $$< -o $$(@)
$$(OBJ_DIR)/%.o : %.s
@echo Assembling $$(<F)
@$$(AS) $$(ASFLAGS) $$< -o $$(@)
flashit : $$(BUILD_DIR)/$1.hex
@echo "$$$$JLINK_FLASH_PSoC4_CMD" | $$(JLINKEXE)
$$(BUILD_DIR)/.gdbinit : $$(BUILD_DIR)
@rm -f $$(@)
@echo "shell $$(JLINKGDBCMD)&" >> $$(@)
@echo "target remote :2331" >> $$(@)
@echo "monitor reset" >> $$(@)
clean :
@echo 'Cleaning build directory...'
rm -rf $$(PRODUCT_DIR)/Build
@echo 'Finished cleaning.'
@echo ' '
.PHONY : clean all
# include by auto dependencies
-include $$(AUTODEPS)
endef
# =======================================================================================================================================
# End BUILD_TARGET_RULE
# =======================================================================================================================================
#########################################################################################################################################
#########################################################################################################################################
# Build Type
ifeq ($(build), Release)
BUILD_TYPE := Release
else
BUILD_TYPE := Debug
endif
# Defaults
PRODUCT ?= Product_Name
PRODUCT_DIR ?= .
BUILD_TYPE ?= Debug
SRC_DIRS ?= $(CYGENERATED_SOURCE) src
# Evaluate Rules Defined Above
$(eval $(call BUILD_TARGET_RULE,$(PRODUCT),$(PRODUCT_DIR),$(BUILD_TYPE)))