Makefile.libretro

# Makefile for PCSX ReARMed (libretro)

DEBUG ?= 0
WANT_ZLIB ?= 1

ifeq ($(platform),)
	platform = unix
	ifeq ($(shell uname -a),)
		platform = win
	else ifneq ($(findstring MINGW,$(shell uname -a)),)
		platform = win
	else ifneq ($(findstring Darwin,$(shell uname -a)),)
		platform = osx
	else ifneq ($(findstring win,$(shell uname -a)),)
		platform = win
	endif
endif

CC ?= gcc
CXX ?= g++
AS ?= as
CC_AS ?= $(CC)
CFLAGS ?=

TARGET_NAME := pcsx_rearmed
GIT_VERSION := " $(shell git rev-parse --short HEAD || echo unknown)"
ifneq ($(GIT_VERSION)," unknown")
	CFLAGS += -DGIT_VERSION=\"$(GIT_VERSION)\"
endif
ifneq ($(WANT_ZLIB),1)
LIBZ := -lz
endif
LIBPTHREAD := -lpthread
ifneq ($(findstring Haiku,$(shell uname -s)),)
LIBDL := -lroot -lnetwork
else
LIBDL := -ldl
endif
LIBM := -lm
MMAP_WIN32 = 0
EXTRA_LDFLAGS =

# Unix
ifeq ($(platform), unix)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
ifneq ($(findstring SunOS,$(shell uname -s)),)
	CC = gcc
endif
ifeq ($(ARCH), arm)
ifneq ($(findstring __thumb__,$(shell $(CC) -E -dD $(CFLAGS) include/arm_features.h)),)
	# must disable thumb as recompiler can't handle it
	CFLAGS += -marm
endif
endif

else ifeq ($(platform), linux-portable)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC -nostdlib
	EXTRA_LDFLAGS += -fPIC -nostdlib
	LIBZ :=
	LIBPTHREAD :=
	LIBDL :=
	LIBM :=
	NO_UNDEF_CHECK = 1

# OS X
else ifeq ($(platform), osx)
	USE_DYNAREC ?= 1
	TARGET := $(TARGET_NAME)_libretro.dylib
	fpic := -fPIC
	fpic += -mmacosx-version-min=10.1
ifeq ($(USE_DYNAREC),0)
	# Override
	TARGET := $(TARGET_NAME)_interpreter_libretro.dylib
endif

# iOS
else ifeq ($(platform),$(filter $(platform),ios-arm64))
	ARCH := arm64
	USE_DYNAREC = 0
	HAVE_NEON = 0
	BUILTIN_GPU = peops
	TARGET := $(TARGET_NAME)_libretro_ios.dylib

else ifneq (,$(findstring ios,$(platform)))
	ARCH := arm
	USE_DYNAREC ?= 1
	HAVE_NEON = 1
	BUILTIN_GPU = neon
	TARGET := $(TARGET_NAME)_libretro_ios.dylib
ifeq ($(USE_DYNAREC),0)
	# Override
	TARGET := $(TARGET_NAME)_interpreter_libretro_ios.dylib
endif
	fpic := -fPIC

	ifeq ($(IOSSDK),)
		IOSSDK := $(shell xcodebuild -version -sdk iphoneos Path)
	endif

	CC = clang -arch armv7 -isysroot $(IOSSDK)
	CXX = clang++ -arch armv7 -isysroot $(IOSSDK)
	CC_AS = perl ./tools/gas-preprocessor.pl $(CC)
	CFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon -marm
	ASFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon
	CFLAGS += -DIOS
ifeq ($(platform),ios9)
	CC     += -miphoneos-version-min=8.0
	CXX    += -miphoneos-version-min=8.0
	CC_AS  += -miphoneos-version-min=8.0
	CFLAGS += -miphoneos-version-min=8.0
else
	CC     += -miphoneos-version-min=5.0
	CXX    += -miphoneos-version-min=5.0
	CC_AS  += -miphoneos-version-min=5.0
	CFLAGS += -miphoneos-version-min=5.0
endif

# PS3
else ifeq ($(platform), ps3)
	TARGET := $(TARGET_NAME)_libretro_ps3.a
	CC = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-gcc.exe
	AR = $(CELL_SDK)/host-win32/ppu/bin/ppu-lv2-ar.exe
	CFLAGS += -DBLARGG_BIG_ENDIAN=1 -D__ppc__

# sncps3
else ifeq ($(platform), sncps3)
	TARGET := $(TARGET_NAME)_libretro_ps3.a
	CC = $(CELL_SDK)/host-win32/sn/bin/ps3ppusnc.exe
	AR = $(CELL_SDK)/host-win32/sn/bin/ps3snarl.exe
	CFLAGS += -DBLARGG_BIG_ENDIAN=1 -D__ppc__

# Lightweight PS3 Homebrew SDK
else ifeq ($(platform), psl1ght)
	TARGET := $(TARGET_NAME)_libretro_psl1ght.a
	CC = $(PS3DEV)/ppu/bin/ppu-gcc$(EXE_EXT)
	AR = $(PS3DEV)/ppu/bin/ppu-ar$(EXE_EXT)
	CFLAGS += -DBLARGG_BIG_ENDIAN=1 -D__ppc__

# PSP
else ifeq ($(platform), psp1)
	TARGET := $(TARGET_NAME)_libretro_psp1.a
	CC = psp-gcc$(EXE_EXT)
	AR = psp-ar$(EXE_EXT)
	CFLAGS += -DPSP -G0

# Vita
else ifeq ($(platform), vita)
	TARGET := $(TARGET_NAME)_libretro_vita.a
	CC = arm-vita-eabi-gcc$(EXE_EXT)
	AR = arm-vita-eabi-ar$(EXE_EXT)
	CFLAGS += -DVITA
	CFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon -marm
	CFLAGS += -fsingle-precision-constant -mword-relocations -fno-unwind-tables
	CFLAGS += -fno-asynchronous-unwind-tables -ftree-vectorize -funroll-loops
	CFLAGS += -fno-optimize-sibling-calls
	CFLAGS += -I$(VITASDK)/include -Ifrontend/vita
	CFLAGS += -DNO_SOCKET -DNO_OS -DNO_DYLIB
	ASFLAGS += -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon

#	CFLAGS += -U__ARM_NEON__
	HAVE_NEON = 1
	BUILTIN_GPU = neon

	USE_DYNAREC = 1
	DRC_CACHE_BASE = 0

	ARCH = arm
	STATIC_LINKING = 1

# CTR(3DS)
else ifeq ($(platform), ctr)
	TARGET := $(TARGET_NAME)_libretro_ctr.a
	CC = $(DEVKITARM)/bin/arm-none-eabi-gcc$(EXE_EXT)
	CXX = $(DEVKITARM)/bin/arm-none-eabi-g++$(EXE_EXT)
	AR = $(DEVKITARM)/bin/arm-none-eabi-ar$(EXE_EXT)
	CFLAGS += -DARM11 -D_3DS -DNO_OS -DNO_DYLIB -DNO_SOCKET
	CFLAGS += -march=armv6k -mtune=mpcore -mfloat-abi=hard -marm -mfpu=vfp -mtp=soft
	CFLAGS += -Wall -mword-relocations
	CFLAGS += -fomit-frame-pointer -ffast-math
	CFLAGS += -Ifrontend/3ds
	CFLAGS += -Werror=implicit-function-declaration

#	CFLAGS += -DPCSX
#	BUILTIN_GPU = unai
	USE_DYNAREC = 1
	DRC_CACHE_BASE = 0
	ARCH = arm
	HAVE_NEON = 0

	STATIC_LINKING = 1

# Xbox 360
else ifeq ($(platform), xenon)
	TARGET := $(TARGET_NAME)_libretro_xenon360.a
	CC = xenon-gcc$(EXE_EXT)
	AR = xenon-ar$(EXE_EXT)
	CFLAGS += -D__LIBXENON__ -m32 -D__ppc__

# Nintendo Game Cube
else ifeq ($(platform), ngc)
	TARGET := $(TARGET_NAME)_libretro_ngc.a
	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
	CFLAGS += -DGEKKO -DHW_DOL -mrvl -mcpu=750 -meabi -mhard-float -DBLARGG_BIG_ENDIAN=1 -D__ppc__

# Nintendo Wii
else ifeq ($(platform), wii)
	TARGET := libretro_$(TARGET_NAME)_wii.a
	CC = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
	AR = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
	CFLAGS += -DGEKKO -DHW_RVL -mrvl -mcpu=750 -meabi -mhard-float -DBLARGG_BIG_ENDIAN=1 -D__ppc__

# QNX
else ifeq ($(platform), qnx)
	TARGET := $(TARGET_NAME)_libretro_qnx.so
	fpic := -fPIC
	CC = qcc -Vgcc_ntoarmv7le
	CC_AS = $(CC)
	HAVE_NEON = 1
	USE_DYNAREC = 1
	DRC_CACHE_BASE = 0
	BUILTIN_GPU = neon
	ARCH = arm
	CFLAGS += -D__BLACKBERRY_QNX__ -marm -mcpu=cortex-a9 -mtune=cortex-a9 -mfpu=neon -mfloat-abi=softfp
	ASFLAGS += -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=softfp
	MAIN_LDLIBS += -lsocket
	LIBPTHREAD :=
	LIBDL :=
	LIBM :=

#Raspberry Pi 2
else ifeq ($(platform), rpi2)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -marm -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard
	ASFLAGS += -mcpu=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard
	HAVE_NEON = 1
	ARCH = arm
	BUILTIN_GPU = neon
	USE_DYNAREC = 1

#Raspberry Pi 3
else ifeq ($(platform), rpi3)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -marm -mcpu=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	ASFLAGS += -mcpu=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	HAVE_NEON = 1
	ARCH = arm
	BUILTIN_GPU = neon
	USE_DYNAREC = 1

# Classic Platforms ####################
# Platform affix = classic_<ISA>_<µARCH>
# Help at https://modmyclassic.com/comp

# (armv7 a7, hard point, neon based) ### 
# NESC, SNESC, C64 mini 
else ifeq ($(platform), classic_armv7_a7)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -Ofast \
	-flto=4 -fwhole-program -fuse-linker-plugin \
	-fdata-sections -ffunction-sections -Wl,--gc-sections \
	-fno-stack-protector -fno-ident -fomit-frame-pointer \
	-falign-functions=1 -falign-jumps=1 -falign-loops=1 \
	-fno-unwind-tables -fno-asynchronous-unwind-tables -fno-unroll-loops \
	-fmerge-all-constants -fno-math-errno \
	-marm -mtune=cortex-a7 -mfpu=neon-vfpv4 -mfloat-abi=hard
	CXXFLAGS += $(CFLAGS)
	CPPFLAGS += $(CFLAGS)
	ASFLAGS += $(CFLAGS)
	HAVE_NEON = 1
	ARCH = arm
	BUILTIN_GPU = neon
	USE_DYNAREC = 1
	ifeq ($(shell echo `$(CC) -dumpversion` "< 4.9" | bc -l), 1)
		CFLAGS += -march=armv7-a
	else
		CFLAGS += -march=armv7ve
		# If gcc is 5.0 or later
		ifeq ($(shell echo `$(CC) -dumpversion` ">= 5" | bc -l), 1)
			LDFLAGS += -static-libgcc -static-libstdc++
		endif
	endif
	
# (armv8 a35, hard point, neon based) ###
# PlayStation Classic
else ifeq ($(platform), classic_armv8_a35)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -Ofast \
	-flto=4 -fwhole-program -fuse-linker-plugin \
	-fdata-sections -ffunction-sections -Wl,--gc-sections \
	-fno-stack-protector -fno-ident -fomit-frame-pointer \
	-falign-functions=1 -falign-jumps=1 -falign-loops=1 \
	-fno-unwind-tables -fno-asynchronous-unwind-tables -fno-unroll-loops \
	-fmerge-all-constants -fno-math-errno \
	-marm -mtune=cortex-a35 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	CXXFLAGS += $(CFLAGS)
	CPPFLAGS += $(CFLAGS)
	ASFLAGS += $(CFLAGS)
	HAVE_NEON = 1
	ARCH = arm
	BUILTIN_GPU = neon
	USE_DYNAREC = 1
	CFLAGS += -march=armv8-a
	LDFLAGS += -static-libgcc -static-libstdc++
	
#######################################

# ARM
else ifneq (,$(findstring armv,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	HAVE_NEON = 0
	DRC_CACHE_BASE = 0
	BUILTIN_GPU = peops
	ifneq (,$(findstring cortexa8,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a8
		ASFLAGS += -mcpu=cortex-a8
	else ifneq (,$(findstring cortexa7,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a7
		ASFLAGS += -mcpu=cortex-a7
		LIBZ :=
	else ifneq (,$(findstring cortexa9,$(platform)))
		CFLAGS += -marm -mcpu=cortex-a9
		ASFLAGS += -mcpu=cortex-a9
	endif
	CFLAGS += -marm
	ifneq (,$(findstring neon,$(platform)))
		CFLAGS += -mfpu=neon
		ASFLAGS += -mfpu=neon
		HAVE_NEON = 1
		BUILTIN_GPU = neon
	endif
	ifneq (,$(findstring softfloat,$(platform)))
		CFLAGS += -mfloat-abi=softfp
		ASFLAGS += -mfloat-abi=softfp
	else ifneq (,$(findstring hardfloat,$(platform)))
		CFLAGS += -mfloat-abi=hard
		ASFLAGS += -mfloat-abi=hard
	endif
	ARCH = arm
	USE_DYNAREC = 1

# Windows
else
	TARGET := $(TARGET_NAME)_libretro.dll
	BUILTIN_GPU = peops
	PLATFORM = libretro
	MAIN_LDFLAGS += -static-libgcc -static-libstdc++ -s
	CFLAGS += -D__WIN32__ -DNO_DYLIB
	MMAP_WIN32=1
	MAIN_LDLIBS += -lws2_32
	LIBPTHREAD :=
	LIBDL :=
	LIBM :=
endif

CFLAGS += $(fpic)
MAIN_LDFLAGS += -shared
MAIN_LDLIBS += $(LIBPTHREAD) $(LIBM) $(LIBDL) $(LIBZ)

# enable large file support if available
ifeq ($(shell $(CC) -E -dD $(CFLAGS) include/arm_features.h | grep __SIZEOF_LONG__ | awk '{print $$3}'),4)
CFLAGS += -D_FILE_OFFSET_BITS=64
endif

# try to autodetect stuff for the lazy
ifndef ARCH
ARCH = $(shell $(CC) -dumpmachine | awk -F- '{print $$1}')
endif
ifndef HAVE_NEON
HAVE_NEON = $(shell $(CC) -E -dD - < /dev/null 2> /dev/null | grep -q __ARM_NEON__ && echo 1 || echo 0)
endif
ifeq ($(NO_UNDEF_CHECK)$(shell ld -v 2> /dev/null | awk '{print $$1}'),GNU)
MAIN_LDFLAGS += -Wl,--no-undefined
endif

TARGET ?= libretro.so
PLATFORM = libretro
BUILTIN_GPU ?= peops
SOUND_DRIVERS = libretro
PLUGINS =
NO_CONFIG_MAK = yes

# what does this do
#libretro_all: all
#ifeq ($(platform),ios)
#ifeq ($(USE_DYNAREC),1)
#	make -f Makefile.libretro USE_DYNAREC=0 platform=$(platform) clean
#	make -f Makefile.libretro USE_DYNAREC=0 platform=$(platform)
#endif
#endif

include Makefile

# no special AS needed for gpu_neon
plugins/gpu_neon/psx_gpu/psx_gpu_arm_neon.o: plugins/gpu_neon/psx_gpu/psx_gpu_arm_neon.S
	$(CC) $(CFLAGS) -c $^ -o $@