Makefile.libretro

# Makefile for PCSX ReARMed (libretro)

DEBUG ?= 0
WANT_ZLIB ?= 1
HAVE_CHD ?= 1
HAVE_PHYSICAL_CDROM ?= 1
USE_ASYNC_CDROM ?= 1
USE_LIBRETRO_VFS ?= 0
NDRC_THREAD ?= 1
GNU_LINKER ?= 1

# Dynarec options: lightrec, ari64
DYNAREC ?= lightrec

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
LD ?= ld
CFLAGS ?=

# early compiler overrides
ifeq ($(platform),ios-arm64)
	CC = cc -arch arm64 -isysroot $(IOSSDK)
	CXX = c++ -arch arm64 -isysroot $(IOSSDK)
else ifneq (,$(findstring ios,$(platform)))
	CC = cc -arch armv7 -isysroot $(IOSSDK)
	CXX = c++ -arch armv7 -isysroot $(IOSSDK)
else ifeq ($(platform), tvos-arm64)
	ifeq ($(IOSSDK),)
		IOSSDK := $(shell xcodebuild -version -sdk appletvos Path)
	endif
	CC = cc -arch arm64 -isysroot $(IOSSDK)
	CXX = c++ -arch arm64 -isysroot $(IOSSDK)
else ifeq ($(platform), osx)
   ifeq ($(CROSS_COMPILE),1)
	TARGET_RULE = -target $(LIBRETRO_APPLE_PLATFORM) -isysroot $(LIBRETRO_APPLE_ISYSROOT)
	CFLAGS   += $(TARGET_RULE)
	CXXFLAGS += $(TARGET_RULE)
	LDFLAGS  += $(TARGET_RULE)
   endif
else ifeq ($(platform), psl1ght)
  ifeq ($(strip $(PS3DEV)),)
  $(error "PS3DEV env var is not set")
  endif
  CC = $(PS3DEV)/ppu/bin/ppu-gcc$(EXE_EXT)
  AR = $(PS3DEV)/ppu/bin/ppu-ar$(EXE_EXT)
else ifeq ($(platform), psp1)
  CC = psp-gcc$(EXE_EXT)
  AR = psp-ar$(EXE_EXT)
  LD = psp-ld$(EXE_EXT)
else ifeq ($(platform), vita)
  CC = arm-vita-eabi-gcc$(EXE_EXT)
  AR = arm-vita-eabi-ar$(EXE_EXT)
  LD = arm-vita-eabi-ld$(EXE_EXT)
  OBJCOPY = arm-vita-eabi-objcopy$(EXE_EXT)
else ifeq ($(platform), ctr)
  ifneq ($(strip $(DEVKITPRO)),)
  DEVKITARM ?= $(DEVKITPRO)/devkitARM
  CTRULIB ?= $(DEVKITPRO)/libctru
  endif
  ifeq ($(strip $(DEVKITARM)),)
  $(error "DEVKITARM env var is not set")
  endif
  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)
  LD = $(DEVKITARM)/bin/arm-none-eabi-ld$(EXE_EXT)
  OBJCOPY = $(DEVKITARM)/bin/arm-none-eabi-objcopy$(EXE_EXT)
else ifeq ($(platform), libnx)
  export DEPSDIR := $(CURDIR)/
  ifeq ($(strip $(DEVKITPRO)),)
  $(error "DEVKITPRO env var is not set")
  endif
  include $(DEVKITPRO)/libnx/switch_rules
  SHELL := PATH=$(PATH) $(SHELL)
  LD = $(PREFIX)ld
else ifeq ($(platform), xenon)
  CC = xenon-gcc$(EXE_EXT)
  AR = xenon-ar$(EXE_EXT)
  LD = xenon-ld$(EXE_EXT)
else ifneq (,$(filter $(platform),ngc wii wiiu))
  ifeq ($(strip $(DEVKITPPC)),)
  $(error "DEVKITPPC env var is not set")
  endif
  CC  = $(DEVKITPPC)/bin/powerpc-eabi-gcc$(EXE_EXT)
  CXX = $(DEVKITPPC)/bin/powerpc-eabi-g++$(EXE_EXT)
  AR  = $(DEVKITPPC)/bin/powerpc-eabi-ar$(EXE_EXT)
  LD  = $(DEVKITPPC)/bin/powerpc-eabi-ld$(EXE_EXT)
else ifeq ($(platform), qnx)
  CC = qcc -Vgcc_ntoarmv7le
else ifeq ($(platform), miyoo)
  CC = /opt/miyoo/usr/bin/arm-linux-gcc
  CXX = /opt/miyoo/usr/bin/arm-linux-g++
endif
CC_AS ?= $(CC)

# workaround wrong owner in libretro infra
GIT_VERSION1 := $(shell test -d /builds/libretro/pcsx_rearmed && git rev-parse --short HEAD 2>&1)
ifneq ($(findstring dubious ownership,$(GIT_VERSION1)),)
DUMMY := $(shell git config --global --add safe.directory /builds/libretro/pcsx_rearmed)
endif

TARGET_NAME := pcsx_rearmed
ARCH_DETECTED := $(shell $(CC) $(CFLAGS) -dumpmachine | awk -F- '{print $$1}')
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
# easiest way to prevent libretro-common from breaking on Haiku
HAVE_PHYSICAL_CDROM := 0
else
LIBDL := -ldl
endif
LIBM := -lm
MMAP_WIN32 = 0
EXTRA_LDFLAGS =

# select some defaults
ifneq (,$(findstring $(ARCH_DETECTED),arm aarch64))
	DYNAREC = ari64
ifneq (,$(shell $(CC) -E -dD $(CFLAGS) include/arm_features.h | grep 'define __thumb__'))
	# must disable thumb as ari64 can't handle it
	CFLAGS += -marm
endif
ifneq (,$(shell $(CC) -E -dD $(CFLAGS) include/arm_features.h | grep 'HAVE_NEON32'))
	BUILTIN_GPU = neon
endif
endif
ifneq (,$(filter $(ARCH_DETECTED),i686 x86_64 arm64 aarch64))
	BUILTIN_GPU = neon
endif

# platform specific options

# Unix
ifeq ($(platform), unix)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	THREAD_RENDERING = 1
ifeq ($(shell uname),Linux)
	LIGHTREC_CUSTOM_MAP := 1
endif

# ODROIDN2
else ifneq (,$(findstring CortexA73_G12B,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	ARCH = arm64
	BUILTIN_GPU = neon
	HAVE_NEON = 1
	DYNAREC = ari64
	CFLAGS += -fomit-frame-pointer -ffast-math -DARM
	CFLAGS += -march=armv8-a+crc -mcpu=cortex-a73 -mtune=cortex-a73.cortex-a53

# ALLWINNER H5
else ifneq (,$(findstring h5,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	ARCH = arm64
	BUILTIN_GPU = neon
	HAVE_NEON = 1
	DYNAREC = ari64
	CFLAGS += -fomit-frame-pointer -ffast-math -DARM
	CFLAGS += -march=armv8-a+crc -mcpu=cortex-a53 -mtune=cortex-a53

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
	LIGHTREC_CUSTOM_MAP := 1

# OS X
else ifeq ($(platform), osx)
	DYNAREC := 0
	TARGET := $(TARGET_NAME)_libretro.dylib
	fpic := -fPIC
   MACSOSVER = `sw_vers -productVersion | cut -d. -f 1`
   OSXVER = `sw_vers -productVersion | cut -d. -f 2`
   OSX_LT_MAVERICKS = `(( $(OSXVER) <= 9)) && echo "YES"`
   ifeq ($(OSX_LT_MAVERICKS),YES)
   	   fpic += -mmacosx-version-min=10.1
   endif
	CFLAGS  += $(ARCHFLAGS)
	CXXFLAGS  += $(ARCHFLAGS)
	LDFLAGS += $(ARCHFLAGS)
	HAVE_PHYSICAL_CDROM = 0
	FSECTIONS_LDFLAGS = -Wl,-dead_strip
	GNU_LINKER = 0

# iOS
else ifneq (,$(findstring ios,$(platform)))
	TARGET := $(TARGET_NAME)_libretro_ios.dylib
	MINVERSION :=
ifeq ($(DYNAREC),lightrec)
	# Override
	DYNAREC := 0
endif
	fpic := -fPIC

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

	CFLAGS += -DIOS
ifeq ($(platform),ios-arm64)
	ARCH := arm64
	BUILTIN_GPU = neon
	HAVE_NEON = 1
	DYNAREC = 0
else
	ARCH := arm
	HAVE_NEON = 1
	HAVE_NEON_ASM = 1
	BUILTIN_GPU = neon
	CFLAGS += -marm -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon
	ASFLAGS += -marm -mcpu=cortex-a8 -mtune=cortex-a8 -mfpu=neon
endif
	HAVE_PHYSICAL_CDROM = 0
	CC_AS = perl ./tools/gas-preprocessor.pl $(CC)
ifeq ($(platform),$(filter $(platform),ios9 ios-arm64))
	MINVERSION = -miphoneos-version-min=8.0
else
	MINVERSION = -miphoneos-version-min=5.0
endif
	CFLAGS += $(MINVERSION)
	FSECTIONS_LDFLAGS = -Wl,-dead_strip
	GNU_LINKER = 0

else ifeq ($(platform), tvos-arm64)
	TARGET := $(TARGET_NAME)_libretro_tvos.dylib
	MINVERSION :=
ifeq ($(DYNAREC),lightrec)
	# Override
	DYNAREC := 0
endif
	fpic := -fPIC

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

	CFLAGS += -DIOS -DTVOS
	ARCH := arm64
	BUILTIN_GPU = neon
	HAVE_NEON = 1
	DYNAREC = 0
	HAVE_PHYSICAL_CDROM = 0
	CC_AS = perl ./tools/gas-preprocessor.pl $(CC)
	MINVERSION = -mappletvos-version-min=11.0
	CFLAGS += $(MINVERSION)
	FSECTIONS_LDFLAGS = -Wl,-dead_strip
	GNU_LINKER = 0

# Nintendo Switch (libnx)
else ifeq ($(platform), libnx)
   TARGET := $(TARGET_NAME)_libretro_$(platform).a
   ARCH := arm64
   HAVE_VFS_FD = 0
   CFLAGS += -O3 -fomit-frame-pointer -ffast-math -I$(DEVKITPRO)/libnx/include/ -fPIE
   CFLAGS += -specs=$(DEVKITPRO)/libnx/switch.specs -DNO_DYLIB -D__arm64__ -D__ARM_NEON__
   CFLAGS += -D__SWITCH__ -DSWITCH -DHAVE_LIBNX
   CFLAGS += -DARM -D__aarch64__=1 -march=armv8-a -mtune=cortex-a57 -mtp=soft -DHAVE_INTTYPES -DLSB_FIRST -ffast-math -mcpu=cortex-a57+crc+fp+simd
   CFLAGS += -ftree-vectorize
   CFLAGS += -Ifrontend/switch
   NO_POSIX_MEMALIGN := 1
   NO_PTHREAD=1
   NO_MMAP := 1 # for psxmem
   LIBPTHREAD :=
   WANT_ZLIB = 0
   PARTIAL_LINKING = 1
   BUILTIN_GPU = neon
   HAVE_NEON = 1
   DYNAREC = ari64
   HAVE_PHYSICAL_CDROM = 0

# Lakka Switch (arm64)
else ifeq ($(platform), arm64)
   TARGET := $(TARGET_NAME)_libretro.so
   ARCH := arm64
   BUILTIN_GPU = neon
   HAVE_NEON = 1
   DYNAREC = ari64
   HAVE_PHYSICAL_CDROM = 0
   fpic := -fPIC
   CFLAGS := $(filter-out -O2, $(CFLAGS))
   CFLAGS += -O3 -ftree-vectorize

# Lightweight PS3 Homebrew SDK
else ifeq ($(platform), psl1ght)
	TARGET := $(TARGET_NAME)_libretro_psl1ght.a
	CFLAGS += -DBLARGG_BIG_ENDIAN=1 -D__ppc__
	CFLAGS += -DNO_DYLIB
	NO_UNDEF_CHECK := 1
	STATIC_LINKING := 1
	NO_MMAP := 1
	NO_PTHREAD := 1
	LIBPTHREAD :=
	LIBDL :=
	NEED_SYSCONF := 1
	HAVE_PHYSICAL_CDROM = 0
	USE_ASYNC_CDROM = 0

# PSP
else ifeq ($(platform), psp1)
	TARGET := $(TARGET_NAME)_libretro_psp1.a
	CFLAGS += -DPSP -G0
	HAVE_PHYSICAL_CDROM = 0

# Vita
else ifeq ($(platform), vita)
	TARGET := $(TARGET_NAME)_libretro_vita.a
	CFLAGS += -DVITA
	CFLAGS += -mcpu=cortex-a9 -mtune=cortex-a9 -mfpu=neon -marm
	CFLAGS += -fsingle-precision-constant -mword-relocations -fno-unwind-tables
	CFLAGS += -fno-asynchronous-unwind-tables -ftree-vectorize
	#CFLAGS += -funroll-loops # ~280K bloat
	CFLAGS += -fno-optimize-sibling-calls # broken arm->thumb tailcalls?
	CFLAGS += -I$(VITASDK)/include -Ifrontend/vita
	CFLAGS += -DNO_DYLIB
	CFLAGS_LAST += -O3
	ASFLAGS += -mcpu=cortex-a9 -mtune=cortex-a9 -mfpu=neon

	HAVE_NEON = 1
	HAVE_NEON_ASM = 1
	BUILTIN_GPU = neon

	DYNAREC = ari64
	ARCH = arm
	PARTIAL_LINKING = 1
	NO_MMAP := 1
	NO_POSIX_MEMALIGN := 1
	NDRC_THREAD := 0 # can't write to tc from thread
	HAVE_PHYSICAL_CDROM = 0
	EXTRA_EXTERN_SYMS += _newlib_vm_size_user

# CTR(3DS)
else ifeq ($(platform), ctr)
	ifeq ($(strip $(CTRULIB)),)
 	$(error "CTRULIB env var is not set")
	endif
	TARGET := $(TARGET_NAME)_libretro_ctr.a
	CFLAGS += -DARM11 -D_3DS -D__3DS__
	CFLAGS += -DGPU_UNAI_USE_FLOATMATH -DGPU_UNAI_USE_FLOAT_DIV_MULTINV
	CFLAGS += -march=armv6k -mtune=mpcore -mfloat-abi=hard -marm -mfpu=vfp -mtp=soft
	CFLAGS += -mword-relocations
	CFLAGS += -fomit-frame-pointer
	CFLAGS_LAST += -O3
	# CFLAGS += -funroll-loops # ~500K of bloat
	CFLAGS += -Ifrontend/3ds -I$(CTRULIB)/include
	CFLAGS += -Werror=implicit-function-declaration
	CFLAGS += -Wno-format
	CFLAGS += -DHAVE_UNISTD_H
	CFLAGS += -DZ7_DECL_Int32_AS_long
	CFLAGS += -DUSE_CTRULIB_2
	CFLAGS += -DNO_DYLIB

	OBJS += deps/arm-mem/memcpymove-v6l.o
	OBJS += deps/arm-mem/memset-v6l.o
	OBJS += frontend/3ds/utils.o

	BUILTIN_GPU = unai
	THREAD_RENDERING = 1
	DYNAREC = ari64
	ARCH = arm
	HAVE_NEON = 0
	PARTIAL_LINKING = 1
	WANT_ZLIB = 0
	NO_POSIX_MEMALIGN := 1
	NO_MMAP := 1 # for psxmem
	HAVE_PHYSICAL_CDROM = 0

# Xbox 360
else ifeq ($(platform), xenon)
	TARGET := $(TARGET_NAME)_libretro_xenon360.a
	CFLAGS += -D__LIBXENON__ -m32 -D__ppc__
	HAVE_PHYSICAL_CDROM = 0

# Nintendo GC/Wii/WiiU
else ifneq (,$(filter $(platform),ngc wii wiiu))
	TARGET := $(TARGET_NAME)_libretro_$(platform).a
	ifeq ($(platform), ngc)
		CFLAGS += -DHW_DOL -mogc
		NEED_SYSCONF := 1
	else ifeq ($(platform), wii)
		CFLAGS += -DHW_RVL -mrvl
		NEED_SYSCONF := 1
	else ifeq ($(platform), wiiu)
		# -mwup was removed in newer devkitPPC versions
		CFLAGS += -DHW_WUP
		CFLAGS += -I frontend/wiiu
		CFLAGS += -DZ7_DECL_Int32_AS_long
		CFLAGS += -Wno-format
		LIGHTREC_CUSTOM_MAP := 1
		LIGHTREC_CUSTOM_MAP_OBJ := libpcsxcore/lightrec/mem_wiiu.o
		LIGHTREC_CODE_INV := 1
	endif
	ARCH = powerpc
	BUILTIN_GPU = peops
	CFLAGS += -D__ppc__ -D__powerpc__
	CFLAGS += -DGEKKO -mcpu=750 -meabi -mhard-float
	CFLAGS += -DNO_DYLIB
	STATIC_LINKING := 1
	THREAD_RENDERING := 0
	NO_PTHREAD := 1
	NO_MMAP := 1
	NO_POSIX_MEMALIGN := 1
	LIBDL :=
	LIBPTHREAD :=
	LIBRT :=
	HAVE_PHYSICAL_CDROM = 0
	USE_ASYNC_CDROM = 0

# QNX
else ifeq ($(platform), qnx)
	TARGET := $(TARGET_NAME)_libretro_qnx.so
	fpic := -fPIC
	HAVE_NEON = 1
	HAVE_NEON_ASM = 1
	DYNAREC = ari64
	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 :=
	HAVE_PHYSICAL_CDROM = 0

#Raspberry Pi 1
else ifeq ($(platform), rpi1)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -marm -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard
	ASFLAGS += -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard
	HAVE_NEON = 0
	ARCH = arm
	BUILTIN_GPU = unai
	DYNAREC = ari64

#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
	HAVE_NEON_ASM = 1
	ARCH = arm
	BUILTIN_GPU = neon
	DYNAREC = ari64

#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
	HAVE_NEON_ASM = 1
	ARCH = arm
	BUILTIN_GPU = neon
	DYNAREC = ari64

#Raspberry Pi 3 with a 64bit GNU/Linux OS
else ifeq ($(platform), rpi3_64)
	TARGET := $(TARGET_NAME)_libretro.so
	ARCH := arm64
	BUILTIN_GPU = neon
	HAVE_NEON = 1
	DYNAREC = ari64
	fpic := -fPIC
	CFLAGS += -march=armv8-a+crc+simd -mtune=cortex-a53 -ftree-vectorize

#Raspberry Pi 4 with a 32bit GNU/Linux OS
else ifeq ($(platform), rpi4)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -marm -mcpu=cortex-a72 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	ASFLAGS += -mcpu=cortex-a72 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	HAVE_NEON = 1
	HAVE_NEON_ASM = 1
	ARCH = arm
	BUILTIN_GPU = neon
	DYNAREC = ari64

#Raspberry Pi 4 with a 64bit GNU/Linux OS
else ifeq ($(platform), rpi4_64)
        TARGET := $(TARGET_NAME)_libretro.so
        ARCH := arm64
        BUILTIN_GPU = neon
        HAVE_NEON = 1
        DYNAREC = ari64
        fpic := -fPIC
        CFLAGS += -march=armv8-a+crc+simd -mtune=cortex-a72 -ftree-vectorize

# 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=auto -fuse-linker-plugin \
	-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 += $(CFLAGS)
	HAVE_NEON = 1
	HAVE_NEON_ASM = 1
	ARCH = arm
	BUILTIN_GPU = neon
	DYNAREC = ari64
	ifeq ($(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 \
	-fmerge-all-constants -fno-math-errno \
	-fno-stack-protector -fomit-frame-pointer \
	-marm -mcpu=cortex-a35 -mtune=cortex-a35 -mfpu=neon-fp-armv8 -mfloat-abi=hard
	HAVE_NEON = 1
	HAVE_NEON_ASM = 1
	ARCH = arm
	BUILTIN_GPU = neon
	DYNAREC = ari64
	LDFLAGS += -static-libgcc -static-libstdc++ -fPIC

#######################################

# ARM
else ifneq (,$(findstring armv,$(platform)))
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	HAVE_NEON = 0
	BUILTIN_GPU = peops
	ifneq (,$(findstring cortexa8,$(platform)))
		CFLAGS += -mcpu=cortex-a8
		ASFLAGS += -mcpu=cortex-a8
	else ifneq (,$(findstring cortexa7,$(platform)))
		CFLAGS += -mcpu=cortex-a7
		ASFLAGS += -mcpu=cortex-a7
		LIBZ :=
	else ifneq (,$(findstring cortexa9,$(platform)))
		CFLAGS += -mcpu=cortex-a9
		ASFLAGS += -mcpu=cortex-a9
	endif
	CFLAGS += -marm
	ifneq (,$(findstring neon,$(platform)))
		CFLAGS += -mfpu=neon
		ASFLAGS += -mfpu=neon
		HAVE_NEON = 1
		HAVE_NEON_ASM = 1
		BUILTIN_GPU = neon
	endif
	ifneq (,$(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
	DYNAREC = ari64

else ifeq ($(platform), miyoo)
	TARGET := $(TARGET_NAME)_libretro.so
	fpic := -fPIC
	CFLAGS += -mcpu=arm926ej-s -fsingle-precision-constant
	CFLAGS += -DGPU_UNAI_USE_INT_DIV_MULTINV -D_MIYOO
	ARCH = arm
	BUILTIN_GPU = unai
	DYNAREC = ari64
	HAVE_NEON = 0

# Emscripten
else ifeq ($(platform), emscripten)
   TARGET  := $(TARGET_NAME)_libretro_$(platform).bc
   pthread ?= 0
   fpic    := -fPIC
   NO_MMAP = 1
   # we can use -lz for emscripten's built-in zlib port
   WANT_ZLIB=0
   CFLAGS += -DNO_DYLIB -DNO_SOCKET
   CFLAGS += -msimd128 -ftree-vectorize
   # when compiling with pthreads...
   ifneq ($(pthread), 0)
      # use -lpthread
      LIBPTHREAD := -lpthread
      NO_PTHREAD=0
      # but we don't want to include libretro-common's rthread object files here
      USE_RTHREADS=0
      USE_ASYNC_CDROM=0
      # so we disable some uses of threads within pcsx_rearmed.
      # is this a good solution? I don't know!
   else
      LIBPTHREAD :=
      USE_RTHREADS=0
      USE_ASYNC_CDROM=0
      NO_PTHREAD=1
   endif
   DYNAREC =
   STATIC_LINKING = 1
   HAVE_PHYSICAL_CDROM = 0

# Windows
else
	TARGET := $(TARGET_NAME)_libretro.dll
	PLATFORM = libretro
	MAIN_LDFLAGS += -static-libgcc -static-libstdc++
ifneq ($(DEBUG),1)
	MAIN_LDFLAGS += -s
endif
	CFLAGS += -D__WIN32__ -DNO_DYLIB
	MMAP_WIN32=1
	NO_PTHREAD=1
	MAIN_LDLIBS += -lws2_32
	LIBPTHREAD :=
	LIBDL :=
	LIBM :=
	USE_LIBRETRO_VFS = 1
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 = $(ARCH_DETECTED)
endif
ifndef HAVE_NEON_ASM
# asm for 32bit only
HAVE_NEON_ASM = $(shell $(CC) -E -dD $(CFLAGS) include/arm_features.h | grep -q HAVE_NEON32 && echo 1 || echo 0)
endif
ifeq ($(NO_UNDEF_CHECK)$(shell $(LD) -v 2> /dev/null | awk '{print $$1}'),GNU)
 ifeq (,$(findstring $(platform),win32))
 MAIN_LDFLAGS += -Wl,-version-script=frontend/libretro-version-script
 endif
MAIN_LDFLAGS += -Wl,--no-undefined
endif
ifdef ALLOW_LIGHTREC_ON_ARM
CFLAGS += -DALLOW_LIGHTREC_ON_ARM
endif
ifeq ($(BUILTIN_GPU),neon)
ifneq (,$(findstring $(ARCH),x86 i686))
	CFLAGS_GPU_NEON ?= -msse2 # required
endif
ifeq ($(ARCH),x86_64)
	CFLAGS_GPU_NEON ?= -mssse3 # optional, for more perf
endif
CFLAGS += $(CFLAGS_GPU_NEON)
endif

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

$(info TARGET:      $(TARGET))
$(info platform:    $(platform))
$(info ARCH:        $(ARCH))
$(info DYNAREC:     $(DYNAREC))
$(info BUILTIN_GPU: $(BUILTIN_GPU))
$(info CC:          $(CC) : $(shell $(CC) --version | head -1))
$(info CFLAGS:      $(CFLAGS))
$(info MAIN_LDLIBS: $(MAIN_LDLIBS))
$(info )

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 $@