mirror of
https://github.com/GearsProgress/Poke_Transporter_GB.git
synced 2026-03-21 17:34:42 -05:00
9268cbd42e
This commit removes all references to things in the libstdc++ library to remove a decent chunk of bloat. This means every std::to_string() call, std::string and std::vector. (as well as iostream related stuff). I replaced those with my own versions ptgb::to_string() and ptgb::vector. Especially the latter is not exactly the same, but close enough. I also replaced operator new and delete with my own implementation to avoid pulling in everything related to exceptions from libstdc++ Another problem was the fact that libtonc uses siscanf, which pulls in everything related to the scanf family of functions and locale support. The worst part of that was that it included a 13KB "categories" symbol from libc_a-categories.o, which was pulled in because of the locale support integrated into newlibc's siscanf() function. To fix that, I created a custom, extremely restricted implementation of siscanf. libtonc only used this function to parse at most 2 integers from a string anyway.
205 lines
8.0 KiB
Makefile
205 lines
8.0 KiB
Makefile
# Build configuration (set to either 'debug' or 'release')
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BUILD_TYPE := debug
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#---------------------------------------------------------------------------------
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.SUFFIXES:
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(DEVKITARM)),)
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$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
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endif
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include $(DEVKITARM)/gba_rules
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#---------------------------------------------------------------------------------
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# the LIBGBA path is defined in gba_rules, but we have to define LIBTONC ourselves
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#---------------------------------------------------------------------------------
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LIBTONC := $(DEVKITPRO)/libtonc
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#---------------------------------------------------------------------------------
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# TARGET is the name of the output
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# BUILD is the directory where object files & intermediate files will be placed
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# SOURCES is a list of directories containing source code
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# INCLUDES is a list of directories containing extra header files
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# DATA is a list of directories containing binary data
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# GRAPHICS is a list of directories containing files to be processed by grit
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#
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# All directories are specified relative to the project directory where
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# the makefile is found
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#
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#---------------------------------------------------------------------------------
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TARGET := $(notdir $(CURDIR))_mb
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BUILD := build
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SOURCES := source
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INCLUDES := include
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DATA :=
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MUSIC := audio
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GRAPHICS := graphics
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#---------------------------------------------------------------------------------
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# options for code generation
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#---------------------------------------------------------------------------------
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ARCH := -mthumb -mthumb-interwork
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CFLAGS := -g -Wall -O2\
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-mcpu=arm7tdmi -mtune=arm7tdmi -masm-syntax-unified\
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$(ARCH)
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CFLAGS += $(INCLUDE) -ffunction-sections -fdata-sections -Os -Wall -mthumb -mcpu=arm7tdmi -mtune=arm7tdmi
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CXXFLAGS := $(CFLAGS) -g0 -fno-rtti -fno-exceptions -fdata-sections -ffunction-sections -std=c++20 -Wno-volatile -D_GLIBCXX_USE_CXX20_ABI=0
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ifeq ($(BUILD_TYPE), debug)
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CFLAGS += -g -DDEBUG
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CXXFLAGS += -g -DDEBUG
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else ifeq ($(BUILD_TYPE), release)
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endif
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ASFLAGS := -g $(ARCH)
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LDFLAGS = -Os -g $(ARCH) -Wl,-Map,$(notdir $*.map) -Wl,--gc-sections -mthumb -mcpu=arm7tdmi -mtune=arm7tdmi -Wl,-Map,output.map,--cref -nodefaultlibs
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CFLAGS += -flto
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LDFLAGS += -flto
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#---------------------------------------------------------------------------------
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# any extra libraries we wish to link with the project
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#---------------------------------------------------------------------------------
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LIBS := -lmm -ltonc -lgba -lc -lgcc -lsysbase
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#---------------------------------------------------------------------------------
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# list of directories containing libraries, this must be the top level containing
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# include and lib.
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# the LIBGBA path should remain in this list if you want to use maxmod
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#---------------------------------------------------------------------------------
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LIBDIRS := $(LIBGBA) $(LIBTONC)
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#---------------------------------------------------------------------------------
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# no real need to edit anything past this point unless you need to add additional
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# rules for different file extensions
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#---------------------------------------------------------------------------------
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ifneq ($(BUILD),$(notdir $(CURDIR)))
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#---------------------------------------------------------------------------------
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export OUTPUT := $(CURDIR)/$(TARGET)
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export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir)) \
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$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir))
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export DEPSDIR := $(CURDIR)/$(BUILD)
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CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
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CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
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SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
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PNGFILES := $(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.png)))
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BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
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#ifneq ($(strip $(MUSIC)),)
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# export AUDIOFILES := $(foreach dir,$(notdir $(wildcard $(MUSIC)/*.*)),$(CURDIR)/$(MUSIC)/$(dir))
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# BINFILES += soundbank.bin
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#endif
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#---------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(CPPFILES)),)
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#---------------------------------------------------------------------------------
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export LD := $(CC)
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#---------------------------------------------------------------------------------
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else
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#---------------------------------------------------------------------------------
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export LD := $(CXX)
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#---------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------
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export OFILES_BIN := $(addsuffix .o,$(BINFILES))
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export OFILES_SOURCES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
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export OFILES_GRAPHICS := $(PNGFILES:.png=.o)
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export OFILES := $(OFILES_BIN) $(OFILES_SOURCES) $(OFILES_GRAPHICS)
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export HFILES := $(addsuffix .h,$(subst .,_,$(BINFILES))) $(PNGFILES:.png=.h)
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export INCLUDE := $(foreach dir,$(INCLUDES),-iquote $(CURDIR)/$(dir)) \
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$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
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-I$(CURDIR)/$(BUILD)
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export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
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.PHONY: $(BUILD) clean
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#---------------------------------------------------------------------------------
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$(BUILD):
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@[ -d $@ ] || mkdir -p $@
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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@mkdir -p loader/data
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@cp $(TARGET).gba loader/data/multiboot_rom.bin
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@$(MAKE) -C loader
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#---------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@$(MAKE) -C loader clean
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@rm -fr $(BUILD) $(TARGET).elf $(TARGET).gba
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#---------------------------------------------------------------------------------
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else
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#---------------------------------------------------------------------------------
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# main targets
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#---------------------------------------------------------------------------------
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$(OUTPUT).gba : $(OUTPUT).elf
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$(OUTPUT).elf : $(OFILES)
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$(OFILES_SOURCES) : $(HFILES)
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#---------------------------------------------------------------------------------
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# The bin2o rule should be copied and modified
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# for each extension used in the data directories
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#---------------------------------------------------------------------------------
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#---------------------------------------------------------------------------------
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# rule to build soundbank from music files
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#---------------------------------------------------------------------------------
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#soundbank.bin soundbank.h : $(AUDIOFILES)
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#---------------------------------------------------------------------------------
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# @mmutil $^ -osoundbank.bin -hsoundbank.h
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#---------------------------------------------------------------------------------
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# This rule links in binary data with the .bin extension
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#---------------------------------------------------------------------------------
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%.bin.o %_bin.h : %.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@$(bin2o)
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#---------------------------------------------------------------------------------
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# This rule creates C source files using grit
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# grit takes an image file and a .grit describing how the file is to be processed
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# add additional rules like this for each image extension
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# you use in the graphics folders
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#---------------------------------------------------------------------------------
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%.c %.h: %.png %.grit
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#---------------------------------------------------------------------------------
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@echo "grit $(notdir $<)"
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@grit $< -ftc -o$*
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# make likes to delete intermediate files. This prevents it from deleting the
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# files generated by grit after building the GBA ROM.
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.SECONDARY:
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-include $(DEPSDIR)/*.d
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#---------------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------------
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