+#
+# DMBS Build System
+# Released into the public domain.
+#
+# dean [at] fourwalledcubicle [dot] com
+# www.fourwalledcubicle.com
+#
+
+DMBS_BUILD_MODULES += GCC
+DMBS_BUILD_TARGETS += size symbol-sizes all lib elf bin hex lss clean mostlyclean
+DMBS_BUILD_MANDATORY_VARS += TARGET ARCH MCU SRC
+DMBS_BUILD_OPTIONAL_VARS += BOARD OPTIMIZATION C_STANDARD CPP_STANDARD F_CPU C_FLAGS CPP_FLAGS ASM_FLAGS CC_FLAGS LD_FLAGS OBJDIR OBJECT_FILES DEBUG_TYPE DEBUG_LEVEL LINKER_RELAXATIONS COMPILER_PATH
+DMBS_BUILD_PROVIDED_VARS +=
+DMBS_BUILD_PROVIDED_MACROS +=
+
+# -----------------------------------------------------------------------------
+# DMBS GCC Compiler Buildsystem Makefile Module.
+# -----------------------------------------------------------------------------
+# DESCRIPTION:
+# Provides a set of targets to build a C, C++ and/or Assembly application
+# via the AVR-GCC compiler.
+# -----------------------------------------------------------------------------
+# TARGETS:
+#
+# size - List built application size
+# symbol-sizes - Print application symbols from the binary ELF
+# file as a list sorted by size in bytes
+# all - Build application and list size
+# lib - Build and archive source files into a library
+# elf - Build application ELF debug object file
+# bin - Build application BIN binary object file
+# hex - Build application HEX object file
+# lss - Build application LSS assembly listing file
+# clean - Remove all project intermediary and binary
+# output files
+# mostlyclean - Remove intermediary output files, but
+# preserve binaries
+# <filename>.s - Compile C/C++ source file into an assembly file
+# for manual code inspection
+#
+# MANDATORY PARAMETERS:
+#
+# TARGET - Application name
+# ARCH - Device architecture name
+# MCU - Microcontroller device model name
+# SRC - List of input source files (*.c, *.cpp, *.S)
+#
+# OPTIONAL PARAMETERS:
+#
+# OPTIMIZATION - Optimization level
+# C_STANDARD - C Language Standard to use
+# CPP_STANDARD - C++ Language Standard to use
+# F_CPU - Speed of the CPU, in Hz
+# C_FLAGS - Flags to pass to the C compiler only
+# CPP_FLAGS - Flags to pass to the C++ compiler only
+# ASM_FLAGS - Flags to pass to the assembler only
+# CC_FLAGS - Common flags to pass to the C/C++ compiler and
+# assembler
+# LD_FLAGS - Flags to pass to the linker
+# LINKER_RELAXATIONS - Enable or disable linker relaxations to
+# decrease binary size (note: can cause link
+# failures on systems with an unpatched binutils)
+# OBJDIR - Directory for the output object and dependency
+# files; if equal to ".", the output files will
+# be generated in the same folder as the sources
+# OBJECT_FILES - Extra object files to link in to the binaries
+# DEBUG_FORMAT - Format of the debugging information to
+# generate in the compiled object files
+# DEBUG_LEVEL - Level the debugging information to generate in
+# the compiled object files
+# COMPILER_PATH - Location of the GCC toolchain to use
+#
+# PROVIDED VARIABLES:
+#
+# (None)
+#
+# PROVIDED MACROS:
+#
+# (None)
+#
+# -----------------------------------------------------------------------------
+
+SHELL = /bin/sh
+
+ERROR_IF_UNSET ?= $(if $(filter undefined, $(origin $(strip $(1)))), $(error Makefile $(strip $(1)) value not set))
+ERROR_IF_EMPTY ?= $(if $(strip $($(strip $(1)))), , $(error Makefile $(strip $(1)) option cannot be blank))
+ERROR_IF_NONBOOL ?= $(if $(filter Y N, $($(strip $(1)))), , $(error Makefile $(strip $(1)) option must be Y or N))
+
+# Default values of optionally user-supplied variables
+COMPILER_PATH ?=
+OPTIMIZATION ?= s
+F_CPU ?=
+C_STANDARD ?= gnu99
+CPP_STANDARD ?= gnu++98
+C_FLAGS ?=
+CPP_FLAGS ?=
+ASM_FLAGS ?=
+CC_FLAGS ?=
+OBJDIR ?= obj
+OBJECT_FILES ?=
+DEBUG_FORMAT ?= dwarf-2
+DEBUG_LEVEL ?= 2
+LINKER_RELAXATIONS ?= Y
+
+# Sanity check user supplied values
+$(foreach MANDATORY_VAR, $(DMBS_BUILD_MANDATORY_VARS), $(call ERROR_IF_UNSET, $(MANDATORY_VAR)))
+$(call ERROR_IF_EMPTY, MCU)
+$(call ERROR_IF_EMPTY, TARGET)
+$(call ERROR_IF_EMPTY, ARCH)
+$(call ERROR_IF_EMPTY, OPTIMIZATION)
+$(call ERROR_IF_EMPTY, C_STANDARD)
+$(call ERROR_IF_EMPTY, CPP_STANDARD)
+$(call ERROR_IF_EMPTY, OBJDIR)
+$(call ERROR_IF_EMPTY, DEBUG_FORMAT)
+$(call ERROR_IF_EMPTY, DEBUG_LEVEL)
+$(call ERROR_IF_NONBOOL, LINKER_RELAXATIONS)
+
+# Determine the utility prefix to use for the selected architecture
+ifeq ($(ARCH), AVR8)
+ CROSS := $(COMPILER_PATH)avr
+else ifeq ($(ARCH), XMEGA)
+ CROSS := $(COMPILER_PATH)avr
+else ifeq ($(ARCH), UC3)
+ CROSS := $(COMPILER_PATH)avr32
+else
+ $(error Unsupported architecture "$(ARCH)")
+endif
+
+# Output Messages
+MSG_INFO_MESSAGE := ' [INFO] :'
+MSG_COMPILE_CMD := ' [GCC] :'
+MSG_ASSEMBLE_CMD := ' [GAS] :'
+MSG_NM_CMD := ' [NM] :'
+MSG_REMOVE_CMD := ' [RM] :'
+MSG_LINK_CMD := ' [LNK] :'
+MSG_ARCHIVE_CMD := ' [AR] :'
+MSG_SIZE_CMD := ' [SIZE] :'
+MSG_OBJCPY_CMD := ' [OBJCPY] :'
+MSG_OBJDMP_CMD := ' [OBJDMP] :'
+
+# Convert input source file list to differentiate them by type
+C_SOURCE := $(filter %.c, $(SRC))
+CPP_SOURCE := $(filter %.cpp, $(SRC))
+ASM_SOURCE := $(filter %.S, $(SRC))
+
+# Create a list of unknown source file types, if any are found throw an error
+UNKNOWN_SOURCE := $(filter-out $(C_SOURCE) $(CPP_SOURCE) $(ASM_SOURCE), $(SRC))
+ifneq ($(UNKNOWN_SOURCE),)
+ $(error Unknown input source file formats: $(UNKNOWN_SOURCE))
+endif
+
+# Convert input source filenames into a list of required output object files
+OBJECT_FILES += $(addsuffix .o, $(basename $(SRC)))
+
+# Check if an output object file directory was specified instead of the input file location
+ifneq ($(OBJDIR),.)
+ # Prefix all the object filenames with the output object file directory path
+ OBJECT_FILES := $(addprefix $(patsubst %/,%,$(OBJDIR))/, $(notdir $(OBJECT_FILES)))
+
+ # Check if any object file (without path) appears more than once in the object file list
+ ifneq ($(words $(sort $(OBJECT_FILES))), $(words $(OBJECT_FILES)))
+ $(error Cannot build with OBJDIR parameter set - one or more object file name is not unique)
+ endif
+
+ # Create the output object file directory if it does not exist and add it to the virtual path list
+ $(shell mkdir $(OBJDIR) 2> /dev/null)
+ VPATH += $(dir $(SRC))
+endif
+
+# Create a list of dependency files from the list of object files
+DEPENDENCY_FILES := $(OBJECT_FILES:%.o=%.d)
+
+# Create a list of common flags to pass to the compiler/linker/assembler
+BASE_CC_FLAGS := -pipe -g$(DEBUG_FORMAT) -g$(DEBUG_LEVEL)
+ifneq ($(findstring $(ARCH), AVR8 XMEGA),)
+ BASE_CC_FLAGS += -mmcu=$(MCU) -fshort-enums -fno-inline-small-functions -fpack-struct
+else ifneq ($(findstring $(ARCH), UC3),)
+ BASE_CC_FLAGS += -mpart=$(MCU:at32%=%) -masm-addr-pseudos
+endif
+BASE_CC_FLAGS += -Wall -fno-strict-aliasing -funsigned-char -funsigned-bitfields -ffunction-sections
+BASE_CC_FLAGS += -I.
+BASE_CC_FLAGS += -DARCH=ARCH_$(ARCH)
+ifneq ($(F_CPU),)
+ BASE_CC_FLAGS += -DF_CPU=$(F_CPU)UL
+endif
+ifeq ($(LINKER_RELAXATIONS), Y)
+BASE_CC_FLAGS += -mrelax
+endif
+
+# Additional language specific compiler flags
+BASE_C_FLAGS := -x c -O$(OPTIMIZATION) -std=$(C_STANDARD) -Wstrict-prototypes
+BASE_CPP_FLAGS := -x c++ -O$(OPTIMIZATION) -std=$(CPP_STANDARD)
+BASE_ASM_FLAGS := -x assembler-with-cpp
+
+# Create a list of flags to pass to the linker
+BASE_LD_FLAGS := -lm -Wl,-Map=$(TARGET).map,--cref -Wl,--gc-sections
+ifeq ($(LINKER_RELAXATIONS), Y)
+ BASE_LD_FLAGS += -Wl,--relax
+endif
+ifneq ($(findstring $(ARCH), AVR8 XMEGA),)
+ BASE_LD_FLAGS += -mmcu=$(MCU)
+else ifneq ($(findstring $(ARCH), UC3),)
+ BASE_LD_FLAGS += -mpart=$(MCU:at32%=%) --rodata-writable --direct-data
+endif
+
+# Determine flags to pass to the size utility based on its reported features (only invoke if size target required)
+# and on an architecture where this non-standard patch is available
+ifneq ($(ARCH), UC3)
+size: SIZE_MCU_FLAG := $(shell $(CROSS)-size --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+size: SIZE_FORMAT_FLAG := $(shell $(CROSS)-size --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+endif
+
+# Pre-build informational target, to give compiler and project name information when building
+build_begin:
+ @echo $(MSG_INFO_MESSAGE) Begin compilation of project \"$(TARGET)\"...
+ @echo ""
+ @$(CROSS)-gcc --version
+
+# Post-build informational target, to project name information when building has completed
+build_end:
+ @echo $(MSG_INFO_MESSAGE) Finished building project \"$(TARGET)\".
+
+# Prints size information of a compiled application (FLASH, RAM and EEPROM usages)
+size: $(TARGET).elf
+ @echo $(MSG_SIZE_CMD) Determining size of \"$<\"
+ @echo ""
+ $(CROSS)-size $(SIZE_MCU_FLAG) $(SIZE_FORMAT_FLAG) $<
+
+# Prints size information on the symbols within a compiled application in decimal bytes
+symbol-sizes: $(TARGET).elf
+ @echo $(MSG_NM_CMD) Extracting \"$<\" symbols with decimal byte sizes
+ $(CROSS)-nm --size-sort --demangle --radix=d $<
+
+# Cleans intermediary build files, leaving only the compiled application files
+mostlyclean:
+ @echo $(MSG_REMOVE_CMD) Removing object files of \"$(TARGET)\"
+ rm -f $(OBJECT_FILES)
+ @echo $(MSG_REMOVE_CMD) Removing dependency files of \"$(TARGET)\"
+ rm -f $(DEPENDENCY_FILES)
+
+# Cleans all build files, leaving only the original source code
+clean: mostlyclean
+ @echo $(MSG_REMOVE_CMD) Removing output files of \"$(TARGET)\"
+ rm -f $(TARGET).elf $(TARGET).hex $(TARGET).bin $(TARGET).eep $(TARGET).map $(TARGET).lss $(TARGET).sym lib$(TARGET).a
+
+# Performs a complete build of the user application and prints size information afterwards
+all: build_begin elf hex bin lss sym size build_end
+
+# Helper targets, to build a specific type of output file without having to know the project target name
+lib: lib$(TARGET).a
+elf: $(TARGET).elf
+hex: $(TARGET).hex $(TARGET).eep
+bin: $(TARGET).bin
+lss: $(TARGET).lss
+sym: $(TARGET).sym
+
+# Default target to *create* the user application's specified source files; if this rule is executed by
+# make, the input source file doesn't exist and an error needs to be presented to the user
+$(SRC):
+ $(error Source file does not exist: $@)
+
+# Compiles an input C source file and generates an assembly listing for it
+%.s: %.c $(MAKEFILE_LIST)
+ @echo $(MSG_COMPILE_CMD) Generating assembly from C file \"$(notdir $<)\"
+ $(CROSS)-gcc -S $(BASE_CC_FLAGS) $(BASE_C_FLAGS) $(CC_FLAGS) $(C_FLAGS) $< -o $@
+
+# Compiles an input C++ source file and generates an assembly listing for it
+%.s: %.cpp $(MAKEFILE_LIST)
+ @echo $(MSG_COMPILE_CMD) Generating assembly from C++ file \"$(notdir $<)\"
+ $(CROSS)-gcc -S $(BASE_CC_FLAGS) $(BASE_CPP_FLAGS) $(CC_FLAGS) $(CPP_FLAGS) $< -o $@
+
+# Compiles an input C source file and generates a linkable object file for it
+$(OBJDIR)/%.o: %.c $(MAKEFILE_LIST)
+ @echo $(MSG_COMPILE_CMD) Compiling C file \"$(notdir $<)\"
+ $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_C_FLAGS) $(CC_FLAGS) $(C_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@
+
+# Compiles an input C++ source file and generates a linkable object file for it
+$(OBJDIR)/%.o: %.cpp $(MAKEFILE_LIST)
+ @echo $(MSG_COMPILE_CMD) Compiling C++ file \"$(notdir $<)\"
+ $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_CPP_FLAGS) $(CC_FLAGS) $(CPP_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@
+
+# Assembles an input ASM source file and generates a linkable object file for it
+$(OBJDIR)/%.o: %.S $(MAKEFILE_LIST)
+ @echo $(MSG_ASSEMBLE_CMD) Assembling \"$(notdir $<)\"
+ $(CROSS)-gcc -c $(BASE_CC_FLAGS) $(BASE_ASM_FLAGS) $(CC_FLAGS) $(ASM_FLAGS) -MMD -MP -MF $(@:%.o=%.d) $< -o $@
+
+# Generates a library archive file from the user application, which can be linked into other applications
+.PRECIOUS : $(OBJECT_FILES)
+.SECONDARY : %.a
+%.a: $(OBJECT_FILES)
+ @echo $(MSG_ARCHIVE_CMD) Archiving object files into \"$@\"
+ $(CROSS)-ar rcs $@ $(OBJECT_FILES)
+
+# Generates an ELF debug file from the user application, which can be further processed for FLASH and EEPROM data
+# files, or used for programming and debugging directly
+.PRECIOUS : $(OBJECT_FILES)
+.SECONDARY : %.elf
+%.elf: $(OBJECT_FILES)
+ @echo $(MSG_LINK_CMD) Linking object files into \"$@\"
+ $(CROSS)-gcc $^ -o $@ $(BASE_LD_FLAGS) $(LD_FLAGS)
+
+# Extracts out the loadable FLASH memory data from the project ELF file, and creates an Intel HEX format file of it
+%.hex: %.elf
+ @echo $(MSG_OBJCPY_CMD) Extracting HEX file data from \"$<\"
+ $(CROSS)-objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature $< $@
+
+# Extracts out the loadable FLASH memory data from the project ELF file, and creates an Binary format file of it
+%.bin: %.elf
+ @echo $(MSG_OBJCPY_CMD) Extracting BIN file data from \"$<\"
+ $(CROSS)-objcopy -O binary -R .eeprom -R .fuse -R .lock -R .signature $< $@
+
+# Extracts out the loadable EEPROM memory data from the project ELF file, and creates an Intel HEX format file of it
+%.eep: %.elf
+ @echo $(MSG_OBJCPY_CMD) Extracting EEP file data from \"$<\"
+ $(CROSS)-objcopy -O ihex -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 --no-change-warnings $< $@ || exit 0
+
+# Creates an assembly listing file from an input project ELF file, containing interleaved assembly and source data
+%.lss: %.elf
+ @echo $(MSG_OBJDMP_CMD) Extracting LSS file data from \"$<\"
+ $(CROSS)-objdump -h -d -S -z $< > $@
+
+# Creates a symbol file listing the loadable and discarded symbols from an input project ELF file
+%.sym: %.elf
+ @echo $(MSG_NM_CMD) Extracting SYM file data from \"$<\"
+ $(CROSS)-nm -n $< > $@
+
+# Include build dependency files
+-include $(DEPENDENCY_FILES)
+
+# Phony build targets for this module
+.PHONY: build_begin build_end $(DMBS_BUILD_TARGETS)
projects / pub / USBasp.git / commitdiff