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112 lines
3.5 KiB
Makefile
112 lines
3.5 KiB
Makefile
# Repeat "all" target here, to make sure it is the first target
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# Currently disabled, so only arm7.bin gets build
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#all:
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# Files in this list will be optimisied for speed, otherwise they will be optimised for space
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OPTLIST := actor.cpp ds_main.cpp osystem_ds.cpp blitters.cpp fmopl.cpp rate.cpp isomap.cpp image.cpp gfx.cpp sprite.cpp actor_path.cpp actor_walk.cpp
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#OPTLIST :=
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# Compiler options for files which should be optimised for speed
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OPT_SPEED := -O3
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# Compiler options for files which should be optimised for space
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OPT_SIZE := -Os -mthumb
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#-mthumb -fno-gcse -fno-schedule-insns2
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OBJS := $(DATA_OBJS) $(LIBCARTRESET_OBJS) $(PORT_OBJS) $(COMPRESSOR_OBJS) $(FAT_OBJS)
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# TODO: Handle files in OPTLIST.
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# For this, the list should be made explicit. So, replace actor.cpp by path/to/actor.cpp --
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# in fact, there are several actor.cpp files, and right now all are "optimized", but
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# I think Neil only had the SAGA one in mind. Same for gfx.cpp
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#############################################################################
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#############################################################################
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#############################################################################
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#ndsdir = $(srcdir)/backends/platform/ds
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ndsdir = backends/platform/ds
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#############################################################################
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#
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# ARM7 rules.
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# For ARM7 files, we need different compiler flags, which leads to the
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# extra rules for .o files below
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#
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#############################################################################
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$(ndsdir)/arm7/arm7.bin: $(ndsdir)/arm7/arm7.elf
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$(ndsdir)/arm7/arm7.elf: \
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$(ndsdir)/arm7/source/libcartreset/cartreset.o \
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$(ndsdir)/arm7/source/main.o
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# HACK/FIXME: C compiler, for cartreset.c -- we should switch this to use CXX
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# as soon as possible.
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CC := $(DEVKITARM)/bin/arm-eabi-gcc
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# HACK/TODO: Pointer to objcopy. This should really be set by configure
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OBJCOPY := $(DEVKITARM)/bin/arm-eabi-objcopy
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#
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# Set various flags
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#
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ARM7_ARCH := -mthumb-interwork
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# note: arm9tdmi isn't the correct CPU arch, but anything newer and LD
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# *insists* it has a FPU or VFP, and it won't take no for an answer!
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ARM7_CFLAGS := -g -Wall -O2\
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-mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer\
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-ffast-math \
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$(ARM7_ARCH) \
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-I$(srcdir)/$(ndsdir)/arm7/source/libcartreset \
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-I$(srcdir)/$(ndsdir)/commoninclude \
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-I$(DEVKITPRO)/libnds/include \
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-I$(DEVKITPRO)/libnds/include/nds \
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-DARM7
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ARM7_CXXFLAGS := $(ARM7_CFLAGS) -fno-exceptions -fno-rtti
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ARM7_LDFLAGS := -g $(ARM7_ARCH) -mno-fpu
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# HACK/FIXME: Define a custom build rule for cartreset.c.
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# We do this because it is a .c file, not a .cpp file and so is outside our
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# regular build system anyway. But this is *bad*. It should be changed into a
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# .cpp file and this rule be removed.
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%.o: %.c
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$(MKDIR) $(*D)/$(DEPDIR)
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$(CC) -Wp,-MMD,"$(*D)/$(DEPDIR)/$(*F).d",-MQ,"$@",-MP $(CXXFLAGS) $(CPPFLAGS) -c $(<) -o $*.o
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# Set custom build flags for cartreset.o
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$(ndsdir)/arm7/source/libcartreset/cartreset.o: CXXFLAGS=$(ARM7_CFLAGS)
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$(ndsdir)/arm7/source/libcartreset/cartreset.o: CPPFLAGS=
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# Set custom build flags for main.o
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$(ndsdir)/arm7/source/main.o: CXXFLAGS=$(ARM7_CXXFLAGS)
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$(ndsdir)/arm7/source/main.o: CPPFLAGS=
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# Rule for creating ARM7 .bin files from .elf files
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%.bin: %.elf
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@echo ------
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@echo Building $@...
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$(OBJCOPY) -O binary $< $@
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# Rule for creating ARM7 .elf files by linking .o files together with a special linker script
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%.elf:
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@echo ------
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@echo Building $@...
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$(CXX) $(ARM7_LDFLAGS) -specs=ds_arm7.specs $+ -L/opt/devkitPro/libnds/lib -lnds7 -o $@
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