Zack Buhman
511d99563d
From the GCC manual.
> GCC permits a C structure to have no members:
struct empty {
};
> The structure has size zero. In C++, empty structures are part of the
> language. G++ treats empty structures as if they had a single member of type
> char.
I was not aware of the different behavior in C++.
This fixes every maple example--most were broken for multiple reasons, including
this one.
This also enables SH4 caching. This includes linking code/data into the P1
area (previously this was not the case).
The maple examples (which indeed involve much use of DMA) require much work to
successfully work with the operand and copyback caches. The vibration example
currently is the most complete, though I should consider more on how I want to
structure maple response operand cache invalidation more generally.
177 lines
4.1 KiB
Makefile
177 lines
4.1 KiB
Makefile
MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
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DIR := $(dir $(MAKEFILE_PATH))
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LIB ?= .
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OPT ?= -Og
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DEBUG ?= -g -gdwarf-4
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GENERATED ?=
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AARCH = --isa=sh4 --little
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AFLAGS = --fatal-warnings
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CARCH = -m4-single-only -ml
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CFLAGS += -falign-functions=4 -ffunction-sections -fdata-sections -fshort-enums -ffreestanding -nostdlib
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CFLAGS += -Wall -Werror -Wfatal-errors
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CFLAGS += -Wno-error=narrowing -Wno-error=unused-variable -Wno-error=array-bounds= -Wno-array-bounds
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CFLAGS += -mfsca -funsafe-math-optimizations
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CFLAGS += -I$(dir $(MAKEFILE_PATH))
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DEPFLAGS = -MMD -E
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# --print-gc-sections
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LDFLAGS = --gc-sections --no-warn-rwx-segment --print-memory-usage --entry=_start --orphan-handling=error
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CXXFLAGS = -std=c++23 -fno-exceptions -fno-non-call-exceptions -fno-rtti -fno-threadsafe-statics
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TARGET = sh4-none-elf-
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CC = $(TARGET)gcc
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CXX = $(TARGET)g++
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AS = $(TARGET)as
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LD = $(TARGET)ld
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OBJCOPY = $(TARGET)objcopy
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OBJDUMP = $(TARGET)objdump
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LIBGCC = $(shell $(CC) -print-file-name=libgcc.a)
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define BUILD_BINARY_O
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$(OBJCOPY) \
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-I binary -O elf32-shl -B sh4 \
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--rename-section .data=.data.$(basename $@) \
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$< $@
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endef
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IP_OBJ = \
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systemid.o \
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toc.o \
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sg/sg_sec.o \
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sg/sg_arejp.o \
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sg/sg_areus.o \
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sg/sg_areec.o \
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sg/sg_are00.o \
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sg/sg_are01.o \
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sg/sg_are02.o \
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sg/sg_are03.o \
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sg/sg_are04.o \
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sg/sg_ini.o \
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sg/aip.o
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START_OBJ = \
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start.o \
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runtime.o \
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sh7091/cache.o
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%.bin.o: %.bin
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$(BUILD_BINARY_O)
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%.o: %.obj
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$(OBJCOPY) -g \
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--rename-section IP=.text.$* \
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$< $@
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%.o: %.s
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$(AS) $(AARCH) $(AFLAGS) $(DEBUG) $< -o $@
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%.c.d: | $(GENERATED)
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$(CC) $(CARCH) $(CFLAGS) $(OPT) $(DEBUG) $(DEPFLAGS) -c $(basename $@) -MF $@ -o /dev/null
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%.o: %.c %.c.d
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$(CC) $(CARCH) $(CFLAGS) $(OPT) $(DEBUG) -c $< -o $@
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%.cpp.d: | $(GENERATED)
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$(CXX) $(CARCH) $(CFLAGS) $(CXXFLAGS) $(OPT) $(DEBUG) $(DEPFLAGS) -c $(basename $@) -MF $@ -o /dev/null
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%.o: %.cpp %.cpp.d
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$(CXX) $(CARCH) $(CFLAGS) $(CXXFLAGS) $(OPT) $(DEBUG) -c $< -o $@
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%.elf:
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$(LD) $(LDFLAGS) -T $(LDSCRIPT) $^ -o $@
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%.bin: %.elf
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$(OBJCOPY) -O binary $< $@
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du -b $@
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ip.elf: $(IP_OBJ)
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$(LD) --orphan-handling=error --print-memory-usage -T $(LIB)/ip.lds $^ -o $@
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audio.pcm:
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sox \
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--rate 44100 \
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--encoding signed-integer \
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--bits 16 \
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--channels 2 \
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--endian little \
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--null \
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$@.raw \
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synth 1 sin 440 vol -10dB
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mv $@.raw $@
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1ST_READ.BIN: example/macaw_multipass.bin
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./scramble $< $@
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%.iso: 1ST_READ.BIN ip.bin
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mkisofs \
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-C 0,11702 \
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-sysid "SEGA SEGAKATANA" \
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-volid "SAMPLE_GAME_TITLE" \
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-volset "SAMPLE_GAME_TITLE" \
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-publisher "SEGA ENTERPRISES, LTD." \
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-preparer "CRI CD CRAFT VER.2.27" \
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-copyright "COPYRIGH.TXT" \
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-abstract "ABSTRACT.TXT" \
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-biblio "BIBLIOGR.TXT" \
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-sectype data \
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-G ip.bin \
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-o $@ \
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-graft-points \
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/=./1ST_READ.BIN \
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/=./COPYRIGH.TXT \
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/=./ABSTRACT.TXT \
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/=./BIBLIOGR.TXT
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%.cdi: %.iso
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./cdi4dc $< $@ >/dev/null
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%.data.o: %.data
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$(BUILD_BINARY_O)
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regs/%.csv: regs/%.ods
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libreoffice --headless -convert-to csv:"Text - txt - csv (StarCalc)":44,34,76,,,,true --outdir regs/ $<
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maple/maple_bus_commands.hpp: regs/maple_bus_commands.csv regs/gen/maple_bus_commands.py
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python regs/gen/maple_bus_commands.py $< > $@
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maple/maple_bus_bits.hpp: regs/maple_bus_bits.csv regs/gen/core_bits.py
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python regs/gen/core_bits.py $< > $@
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holly/core_bits.hpp: regs/core_bits.csv regs/gen/core_bits.py
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python regs/gen/core_bits.py $< > $@
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holly/holly.hpp: regs/holly.csv regs/gen/holly.py
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python regs/gen/holly.py $< > $@
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holly/ta_global_parameter.hpp: regs/global_parameter_format.csv regs/gen/ta_parameter_format.py
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python regs/gen/ta_parameter_format.py $< ta_global_parameter > $@
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holly/ta_vertex_parameter.hpp: regs/vertex_parameter_format.csv regs/gen/ta_parameter_format.py
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python regs/gen/ta_parameter_format.py $< ta_vertex_parameter > $@
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sh7091/sh7091.hpp: regs/sh7091.csv regs/gen/sh7091.py
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python regs/gen/sh7091.py $< > $@
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sh7091/sh7091_bits.hpp: regs/sh7091_bits.csv regs/gen/core_bits.py
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python regs/gen/core_bits.py $< > $@
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clean:
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find -P \
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-regextype posix-egrep \
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-regex '.*\.(iso|o|d|bin|elf|cue|gch)$$' \
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-exec rm {} \;
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.SUFFIXES:
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.INTERMEDIATE:
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.SECONDARY:
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.PHONY: all clean
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%: RCS/%,v
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%: RCS/%
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%: %,v
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%: s.%
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%: SCCS/s.%
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