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# List of available make goals:
#
# all Default target, builds the project
# clean Clean up the project
# rebuild Rebuild the project
# debug_flash Builds the project and debug in flash
# debug_sram Builds the project and debug in sram
#
# doc Build the documentation
# cleandoc Clean up the documentation
# rebuilddoc Rebuild the documentation
#
# \file
#
# Copyright (c) 2011 - 2012 Atmel Corporation. All rights reserved.
#
# \asf_license_start
#
# \page License
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. The name of Atmel may not be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# 4. This software may only be redistributed and used in connection with an
# Atmel microcontroller product.
#
# THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
# EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# \asf_license_stop
#
# Include the config.mk file from the current working path, e.g., where the
# user called make.
include config.mk
# Tool to use to generate documentation from the source code
DOCGEN ?= doxygen
# Look for source files relative to the top-level source directory
VPATH := $(PRJ_PATH)
# Output target file
project_type := $(PROJECT_TYPE)
# Output target file
ifeq ($(project_type),flash)
target := $(TARGET_FLASH)
linker_script := $(PRJ_PATH)/$(LINKER_SCRIPT_FLASH)
debug_script := $(PRJ_PATH)/$(DEBUG_SCRIPT_FLASH)
else
target := $(TARGET_SRAM)
linker_script := $(PRJ_PATH)/$(LINKER_SCRIPT_SRAM)
debug_script := $(PRJ_PATH)/$(DEBUG_SCRIPT_SRAM)
endif
# Output project name (target name minus suffix)
project := $(basename $(target))
# Output target file (typically ELF or static library)
ifeq ($(suffix $(target)),.a)
target_type := lib
else
ifeq ($(suffix $(target)),.elf)
target_type := elf
else
$(error "Target type $(target_type) is not supported")
endif
endif
# Allow override of operating system detection. The user can add OS=Linux or
# OS=Windows on the command line to explicit set the host OS.
#
# This allows to work around broken uname utility on certain systems.
ifdef OS
ifeq ($(strip $(OS)), Linux)
os_type := Linux
endif
ifeq (Windows,$(findstring Windows,$(OS)))
os_type := windows32_64
endif
endif
#os_type ?= $(strip $(shell uname))
#ifeq ($(os_type),windows32)
#os := Windows
#else
#ifeq ($(os_type),windows64)
#os := Windows
#else
#ifeq ($(os_type),)
#os := Windows
#else
## Default to Linux style operating system. Both Cygwin and mingw are fully
## compatible (for this Makefile) with Linux.
#os := Linux
#endif
#endif
#endif
ifeq ($(os_type),windows32_64)
os := Windows
else
ifeq ($(os_type),Linux)
os := Linux
else
os := Linux
endif
endif
# Output documentation directory and configuration file.
docdir := ../doxygen/html
doccfg := ../doxygen/doxyfile.doxygen
CROSS ?= arm-none-eabi-
AR := $(CROSS)ar
AS := $(CROSS)as
CC := $(CROSS)gcc
CPP := $(CROSS)gcc -E
CXX := $(CROSS)g++
LD := $(CROSS)g++
NM := $(CROSS)nm
OBJCOPY := $(CROSS)objcopy
OBJDUMP := $(CROSS)objdump
SIZE := $(CROSS)size
GDB := $(CROSS)gdb
RM := cs-rm -f
ifeq ($(os),Windows)
#RMDIR := rmdir /S /Q
RMDIR := cs-rm -rf
else
RMDIR := rmdir -p --ignore-fail-on-non-empty
endif
# Strings for beautifying output
MSG_CLEAN_FILES = "RM *.o *.d"
MSG_CLEAN_DIRS = "RMDIR $(strip $(clean-dirs))"
MSG_CLEAN_DOC = "RMDIR $(docdir)"
MSG_MKDIR = "MKDIR $(dir $@)"
MSG_INFO = "INFO "
MSG_ARCHIVING = "AR $@"
MSG_ASSEMBLING = "AS $@"
MSG_BINARY_IMAGE = "OBJCOPY $@"
MSG_COMPILING = "CC $@"
MSG_COMPILING_CXX = "CXX $@"
MSG_EXTENDED_LISTING = "OBJDUMP $@"
MSG_IHEX_IMAGE = "OBJCOPY $@"
MSG_LINKING = "LN $@"
MSG_PREPROCESSING = "CPP $@"
MSG_SIZE = "SIZE $@"
MSG_SYMBOL_TABLE = "NM $@"
MSG_GENERATING_DOC = "DOXYGEN $(docdir)"
# Don't use make's built-in rules and variables
MAKEFLAGS += -rR
# Don't print 'Entering directory ...'
MAKEFLAGS += --no-print-directory
# Function for reversing the order of a list
reverse = $(if $(1),$(call reverse,$(wordlist 2,$(words $(1)),$(1)))) $(firstword $(1))
# Hide command output by default, but allow the user to override this
# by adding V=1 on the command line.
#
# This is inspired by the Kbuild system used by the Linux kernel.
ifdef V
ifeq ("$(origin V)", "command line")
VERBOSE = $(V)
endif
endif
ifndef VERBOSE
VERBOSE = 0
endif
ifeq ($(VERBOSE), 1)
Q =
else
# Q = @
Q =
endif
arflags-gnu-y := $(ARFLAGS)
asflags-gnu-y := $(ASFLAGS)
cflags-gnu-y := $(CFLAGS)
cxxflags-gnu-y := $(CXXFLAGS)
cppflags-gnu-y := $(CPPFLAGS)
cpuflags-gnu-y :=
dbgflags-gnu-y := $(DBGFLAGS)
libflags-gnu-y := $(foreach LIB,$(LIBS),-l$(LIB))
ldflags-gnu-y := $(LDFLAGS)
flashflags-gnu-y :=
clean-files :=
clean-dirs :=
clean-files += $(wildcard $(target) $(project).map)
clean-files += $(wildcard $(project).hex $(project).bin)
clean-files += $(wildcard $(project).lss $(project).sym)
clean-files += $(wildcard $(build))
# Use pipes instead of temporary files for communication between processes
cflags-gnu-y += -pipe
asflags-gnu-y += -pipe
ldflags-gnu-y += -pipe
# Archiver flags.
arflags-gnu-y += rcs
# Always enable warnings. And be very careful about implicit
# declarations.
cflags-gnu-y += -Wall -Wstrict-prototypes -Wmissing-prototypes
cflags-gnu-y += -Werror-implicit-function-declaration
cxxflags-gnu-y += -Wall
# IAR doesn't allow arithmetic on void pointers, so warn about that.
cflags-gnu-y += -Wpointer-arith
cxxflags-gnu-y += -Wpointer-arith
# Preprocessor flags.
cppflags-gnu-y += $(foreach INC,$(addprefix $(PRJ_PATH)/,$(INC_PATH)),-I$(INC))
asflags-gnu-y += $(foreach INC,$(addprefix $(PRJ_PATH)/,$(INC_PATH)),'-Wa,-I$(INC)')
# CPU specific flags.
cpuflags-gnu-y += -mcpu=$(ARCH) -mthumb -D=__$(PART)__
# Dependency file flags.
depflags = -MD -MP -MQ $@
# Debug specific flags.
ifdef BUILD_DEBUG_LEVEL
dbgflags-gnu-y += -g$(BUILD_DEBUG_LEVEL)
else
dbgflags-gnu-y += -g3
endif
# Optimization specific flags.
ifdef BUILD_OPTIMIZATION
optflags-gnu-y = -O$(BUILD_OPTIMIZATION)
else
optflags-gnu-y = $(OPTIMIZATION)
endif
# Always preprocess assembler files.
asflags-gnu-y += -x assembler-with-cpp
# Compile C files using the GNU99 standard.
cflags-gnu-y += -std=gnu99
# Compile C++ files using the GNU++98 standard.
cxxflags-gnu-y += -std=gnu++98
# Separate each function and data into its own separate section to allow
# garbage collection of unused sections.
cflags-gnu-y += -ffunction-sections -fdata-sections
cxxflags-gnu-y += -ffunction-sections -fdata-sections
# Various cflags.
cflags-gnu-y += -Wchar-subscripts -Wcomment -Wformat=2 -Wimplicit-int
cflags-gnu-y += -Wmain -Wparentheses
cflags-gnu-y += -Wsequence-point -Wreturn-type -Wswitch -Wtrigraphs -Wunused
cflags-gnu-y += -Wuninitialized -Wunknown-pragmas -Wfloat-equal -Wundef
cflags-gnu-y += -Wshadow -Wbad-function-cast -Wwrite-strings
cflags-gnu-y += -Wsign-compare -Waggregate-return
cflags-gnu-y += -Wmissing-declarations
cflags-gnu-y += -Wformat -Wmissing-format-attribute -Wno-deprecated-declarations
cflags-gnu-y += -Wpacked -Wredundant-decls -Wnested-externs -Winline -Wlong-long
cflags-gnu-y += -Wunreachable-code
cflags-gnu-y += -Wcast-align
cflags-gnu-y += --param max-inline-insns-single=500
# To reduce application size use only integer printf function.
cflags-gnu-y += -Dprintf=iprintf
# Garbage collect unreferred sections when linking.
ldflags-gnu-y += -Wl,--gc-sections
# Use the linker script if provided by the project.
ifneq ($(strip $(linker_script)),)
ldflags-gnu-y += -Wl,-T $(linker_script)
endif
# Output a link map file and a cross reference table
ldflags-gnu-y += -Wl,-Map=$(project).map,--cref
# Add library search paths relative to the top level directory.
ldflags-gnu-y += $(foreach _LIB_PATH,$(addprefix $(PRJ_PATH)/,$(LIB_PATH)),-L$(_LIB_PATH))
a_flags = $(cpuflags-gnu-y) $(depflags) $(cppflags-gnu-y) $(asflags-gnu-y) -D__ASSEMBLY__
c_flags = $(cpuflags-gnu-y) $(dbgflags-gnu-y) $(depflags) $(optflags-gnu-y) $(cppflags-gnu-y) $(cflags-gnu-y)
cxx_flags= $(cpuflags-gnu-y) $(dbgflags-gnu-y) $(depflags) $(optflags-gnu-y) $(cppflags-gnu-y) $(cxxflags-gnu-y)
l_flags = -Wl,--entry=Reset_Handler -Wl,--cref $(cpuflags-gnu-y) $(optflags-gnu-y) $(ldflags-gnu-y)
ar_flags = $(arflags-gnu-y)
# Source files list and part informations must already be included before
# running this makefile
# If a custom build directory is specified, use it -- force trailing / in directory name.
ifdef BUILD_DIR
build-dir := $(dir $(BUILD_DIR))$(if $(notdir $(BUILD_DIR)),$(notdir $(BUILD_DIR))/)
else
build-dir =
endif
# Create object files list from source files list.
obj-y := $(addprefix $(build-dir), $(addsuffix .o,$(basename $(CSRCS) $(ASSRCS))))
# Create dependency files list from source files list.
dep-files := $(wildcard $(foreach f,$(obj-y),$(basename $(f)).d))
clean-files += $(wildcard $(obj-y))
clean-files += $(dep-files)
clean-dirs += $(call reverse,$(sort $(wildcard $(dir $(obj-y)))))
.PHONY: all
# Default target.
.PHONY: all
ifeq ($(project_type),all)
all:
$(MAKE) all PROJECT_TYPE=flash
$(MAKE) all PROJECT_TYPE=sram
else
ifeq ($(target_type),lib)
all: $(target) $(project).lss $(project).sym
else
ifeq ($(target_type),elf)
all: $(target) $(project).lss $(project).sym $(project).hex $(project).bin
endif
endif
endif
# Default target.
.PHONY: os
os:
@echo OS '$(OS)'
@echo os type '$(os_type)'
@echo os '$(os)'
@echo '$(findstring Windows,$(OS))'
# Clean up the project.
.PHONY: clean
clean:
@$(if $(strip $(clean-files)),echo $(MSG_CLEAN_FILES))
$(if $(strip $(clean-files)),$(Q)$(RM) $(clean-files),)
@$(if $(strip $(clean-dirs)),echo $(MSG_CLEAN_DIRS))
# Remove created directories, and make sure we only remove existing
# directories, since recursive rmdir might help us a bit on the way.
ifeq ($(os),Windows)
$(Q)$(if $(strip $(clean-dirs)), \
$(RMDIR) $(strip $(subst /,\,$(clean-dirs))))
else
$(Q)$(if $(strip $(clean-dirs)), \
for directory in $(strip $(clean-dirs)); do \
if [ -d "$$directory" ]; then \
$(RMDIR) $$directory; \
fi \
done \
)
endif
# Rebuild the project.
.PHONY: rebuild
rebuild: clean all
# Debug the project in flash.
.PHONY: debug_flash
debug_flash: all
$(GDB) -x "$(PRJ_PATH)/$(DEBUG_SCRIPT_FLASH)" -ex "reset" -readnow -se $(TARGET_FLASH)
# Debug the project in sram.
.PHONY: debug_sram
debug_sram: all
$(GDB) -x "$(PRJ_PATH)/$(DEBUG_SCRIPT_SRAM)" -ex "reset" -readnow -se $(TARGET_SRAM)
.PHONY: objfiles
objfiles: $(obj-y)
# Create object files from C source files.
$(build-dir)%.o: %.c $(PRJ_PATH)/sam/utils/make/Makefile.in config.mk
@echo $(MSG_MKDIR)
ifeq ($(os),Windows)
-mkdir $(subst /,\,$(dir $@))
else
-mkdir -p $(dir $@)
endif
@echo $(MSG_COMPILING)
$(Q)$(CC) $(c_flags) -c $< -o $@
# Create object files from C++ source files.
$(build-dir)%.o: %.cpp $(PRJ_PATH)/sam/utils/make/Makefile.in config.mk
@echo $(MSG_MKDIR)
ifeq ($(os),Windows)
-mkdir $(subst /,\,$(dir $@))
else
-mkdir -p $(dir $@)
endif
@echo $(MSG_COMPILING_CXX)
$(Q)$(CXX) $(cxx_flags) -c $< -o $@
# Preprocess and assemble: create object files from assembler source files.
$(build-dir)%.o: %.S $(PRJ_PATH)/sam/utils/make/Makefile.in config.mk
@echo $(MSG_MKDIR)
ifeq ($(os),Windows)
-mkdir $(subst /,\,$(dir $@))
else
-mkdir -p $(dir $@)
endif
@echo $(MSG_ASSEMBLING)
$(Q)$(CC) $(a_flags) -c $< -o $@
# Include all dependency files to add depedency to all header files in use.
include $(dep-files)
ifeq ($(target_type),lib)
# Archive object files into an archive
$(target): $(PRJ_PATH)/sam/utils/make/Makefile.in config.mk $(obj-y)
@echo $(MSG_ARCHIVING)
$(Q)$(AR) $(ar_flags) $@ $(obj-y)
@echo $(MSG_SIZE)
$(Q)$(SIZE) -Bxt $@
else
ifeq ($(target_type),elf)
# Link the object files into an ELF file. Also make sure the target is rebuilt
# if the common Makefile.in or project config.mk is changed.
$(target): $(linker_script) $(PRJ_PATH)/sam/utils/make/Makefile.in config.mk $(obj-y)
@echo $(MSG_LINKING)
@echo $(Q)$(LD) $(l_flags) $(obj-y) $(libflags-gnu-y) -o $@
$(Q)$(LD) $(l_flags) $(obj-y) $(libflags-gnu-y) -o $@
@echo $(MSG_SIZE)
$(Q)$(SIZE) -Ax $@
$(Q)$(SIZE) -Bx $@
endif
endif
# Create extended function listing from target output file.
%.lss: $(target)
@echo $(MSG_EXTENDED_LISTING)
$(Q)$(OBJDUMP) -h -S $< > $@
# Create symbol table from target output file.
%.sym: $(target)
@echo $(MSG_SYMBOL_TABLE)
$(Q)$(NM) -n $< > $@
# Create Intel HEX image from ELF output file.
%.hex: $(target)
@echo $(MSG_IHEX_IMAGE)
$(Q)$(OBJCOPY) -O ihex $(flashflags-gnu-y) $< $@
# Create binary image from ELF output file.
%.bin: $(target)
@echo $(MSG_BINARY_IMAGE)
$(Q)$(OBJCOPY) -O binary $< $@
# Provide information about the detected host operating system.
.SECONDARY: info-os
info-os:
@echo $(MSG_INFO)$(os) build host detected
# Build Doxygen generated documentation.
.PHONY: doc
doc:
@echo $(MSG_GENERATING_DOC)
$(Q)cd $(dir $(doccfg)) && $(DOCGEN) $(notdir $(doccfg))
# Clean Doxygen generated documentation.
.PHONY: cleandoc
cleandoc:
@$(if $(wildcard $(docdir)),echo $(MSG_CLEAN_DOC))
$(Q)$(if $(wildcard $(docdir)),$(RM) --recursive $(docdir))
# Rebuild the Doxygen generated documentation.
.PHONY: rebuilddoc
rebuilddoc: cleandoc doc