RetroArch/Makefile.libnx
pstef 6bfb7862e7 Make -ffast-math exclusive to sinc_resampler.c
-ffast-math was added in ff14092d8d with a comment that it "helps SINC
resampler to auto-vectorize". The flag is an alias for "-fno-math-errno
-funsafe-math-optimizations -ffp-contract=fast -fno-honor-infinities
-fno-honor-nans". The last two of those cause compiler complaints
because while the flag was meant for this file, it's shared across the
codebase that includes statements that operate on infinities and NaNs.

GCC 13.3 with -fopt-info-vec reports 18 vectorizations for `-O3
-ffast-math`, 17 for `-O3 -fno-math-errno -funsafe-math-optimizations
-ffp-contract=fast` and also 17 for plain `-O3`. So using the subset of
-ffast-math without the offending flags buys nothing and loses 1
vectorization.

Both GCC and Clang provide the "fast-math" pragma directive, which I add
to this one file that benefits from it, under the condition that it's
supported. -ffast-math is removed from most of the makefiles.
2025-05-02 17:26:19 +00:00

278 lines
8.6 KiB
Makefile

include version.all
#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITPRO)),)
$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=<path to>/devkitpro")
endif
TOPDIR ?= $(CURDIR)
include $(DEVKITPRO)/libnx/switch_rules
TARGET := retroarch_switch
DEBUG ?= 0
WHOLE_ARCHIVE_LINK = 0
GRIFFIN_BUILD = 0
OBJ :=
DEFINES := -D__SWITCH__=1 -U__linux__ -U__linux -DGLM_FORCE_PURE=1 -DRARCH_CONSOLE -DRARCH_INTERNAL -DGLOBAL_CONFIG_DIR='"/switch"' -DHAVE_STB_VORBIS
HAVE_DR_MP3 = 1
HAVE_TRANSLATE = 1
HAVE_SCREENSHOTS = 1
HAVE_REWIND = 1
HAVE_AUDIOMIXER = 1
HAVE_CC_RESAMPLER = 1
HAVE_MENU_COMMON = 1
HAVE_RTGA = 1
HAVE_RPNG = 1
HAVE_RJPEG = 1
HAVE_RBMP = 1
HAVE_RWAV = 1
HAVE_7ZIP = 1
HAVE_ZLIB = 1
HAVE_BUILTINZLIB = 1
HAVE_LIBRETRODB = 1
HAVE_DSP_FILTER = 1
HAVE_VIDEO_FILTER = 1
HAVE_STATIC_VIDEO_FILTERS = 1
HAVE_STATIC_AUDIO_FILTERS = 1
HAVE_STATIC_CORES = 1
HAVE_FILTERS_BUILTIN = 1
HAVE_MENU = 1
HAVE_CONFIGFILE = 1
HAVE_PATCH = 1
HAVE_CHEATS = 1
HAVE_RUNAHEAD = 1
HAVE_NETWORKING = 1
HAVE_IFINFO = 1
HAVE_NETPLAYDISCOVERY = 1
HAVE_STB_FONT = 1
HAVE_CHEEVOS = 1
HAVE_CHD = 1
HAVE_STB_VORBIS = 1
HAVE_IBXM = 1
HAVE_CORE_INFO_CACHE = 1
# RetroArch libnx useful flags
HAVE_THREADS = 1
HAVE_PTHREADS = 1
HAVE_FREETYPE = 0
HAVE_SWITCH = 1
HAVE_LIBNX = 1
HAVE_OPENGL = 1
HAVE_LANGEXTRA = 1
HAVE_GFX_WIDGETS = 1
ifeq ($(HAVE_OPENGL), 1)
HAVE_EGL = 1
HAVE_SHADERPIPELINE = 1
HAVE_RGUI = 1
HAVE_MATERIALUI = 1
HAVE_XMB = 1
HAVE_OZONE = 1
HAVE_OVERLAY = 1
HAVE_GLSL = 1
else
HAVE_RGUI = 1
HAVE_MATERIALUI = 0
HAVE_XMB = 0
HAVE_OZONE = 0
endif
include Makefile.common
BLACKLIST :=
OBJ := $(filter-out $(BLACKLIST),$(OBJ))
#---------------------------------------------------------------------------------
# TARGET is the name of the output
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# DATA is a list of directories containing data files
# INCLUDES is a list of directories containing header files
# EXEFS_SRC is the optional input directory containing data copied into exefs, if anything this normally should only contain "main.npdm".
# ROMFS is the directory containing data to be added to RomFS, relative to the Makefile (Optional)
#
# NO_ICON: if set to anything, do not use icon.
# NO_NACP: if set to anything, no .nacp file is generated.
# APP_TITLE is the name of the app stored in the .nacp file (Optional)
# APP_AUTHOR is the author of the app stored in the .nacp file (Optional)
# APP_VERSION is the version of the app stored in the .nacp file (Optional)
# APP_TITLEID is the titleID of the app stored in the .nacp file (Optional)
# ICON is the filename of the icon (.jpg), relative to the project folder.
# If not set, it attempts to use one of the following (in this order):
# - <Project name>.jpg
# - icon.jpg
# - <libnx folder>/default_icon.jpg
#---------------------------------------------------------------------------------
BUILD := build
SOURCES := $(CURDIR)/source
DATA := data
INCLUDES := include
EXEFS_SRC := exefs_src
#ROMFS := switch/romfs
APP_TITLE := RetroArch
APP_VERSION := $(RARCH_VERSION)
APP_AUTHOR := libretro Team
APP_ICON := pkg/libnx/retroarch.jpg
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -march=armv8-a -mtune=cortex-a57 -mtp=soft -fPIE -mcpu=cortex-a57+crc+fp+simd
CFLAGS := -g -Wall -O3 -fcommon -ffunction-sections \
$(ARCH) $(DEFINES) $(INCLUDE_DIRS) -I$(LIBNX)/include -I$(PORTLIBS)/include/ -include $(LIBNX)/include/switch.h #$(shell $(PORTLIBS)/bin/freetype-config --cflags)
CFLAGS += $(INCLUDE) -DSWITCH=1 -DHAVE_LIBNX=1 -DNXLINK=1 -DHAVE_SHADERPIPELINE -DHAVE_ONLINE_UPDATER -DHAVE_UPDATE_ASSETS -DHAVE_UPDATE_CORES -DHAVE_UPDATE_CORE_INFO -DHAVE_STB_FONT #-DHAVE_FREETYPE
ifeq ($(HAVE_FILTERS_BUILTIN), 1)
CFLAGS += -DHAVE_FILTERS_BUILTIN
endif
ifeq ($(strip $(HAVE_STATIC_DUMMY)),1)
CFLAGS += -DHAVE_STATIC_DUMMY=1
endif
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=$(DEVKITPRO)/libnx/switch.specs $(ARCH) -Wl,--allow-multiple-definition -Wl,-Map,$(notdir $*.map)
# add things from Makefile.common
CFLAGS += $(DEF_FLAGS)
LIBS := -lswresample -lavformat -lavcodec -lavutil -lswscale -lstdc++ -lbz2 -lpng -lz -lnx -lvpx -lopus -llzma -lm
ifeq ($(HAVE_OPENGL), 1)
LIBS := -lEGL -lglapi -ldrm_nouveau $(LIBS)
endif
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(PORTLIBS) $(LIBNX)
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export OUTPUT := $(TARGET)
export TOPDIR := $(CURDIR)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
$(foreach dir,$(DATA),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
export OFILES := $(OBJ)
ifeq ($(strip $(HAVE_STATIC_DUMMY)),)
OFILES += libretro_libnx.a
endif
export HFILES_BIN := $(addsuffix .h,$(subst .,_,$(BINFILES)))
export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
export BUILD_EXEFS_SRC := $(TOPDIR)/$(EXEFS_SRC)
ifeq ($(strip $(ICON)),)
icons := $(wildcard *.jpg)
ifneq (,$(findstring $(TARGET).jpg,$(icons)))
export APP_ICON := $(TOPDIR)/$(TARGET).jpg
else
ifneq (,$(findstring icon.jpg,$(icons)))
export APP_ICON := $(TOPDIR)/icon.jpg
endif
endif
else
export APP_ICON := $(TOPDIR)/$(ICON)
endif
ifeq ($(strip $(NO_ICON)),)
export NROFLAGS += --icon=$(APP_ICON)
endif
ifeq ($(strip $(NO_NACP)),)
export NROFLAGS += --nacp=$(CURDIR)/$(TARGET).nacp
endif
ifneq ($(APP_TITLEID),)
export NACPFLAGS += --titleid=$(APP_TITLEID)
endif
ifneq ($(ROMFS),)
export NROFLAGS += --romfsdir=$(CURDIR)/$(ROMFS)
endif
DEPENDS_TMP := $(OFILES:.o=.d)
DEPENDS := $(filter-out libretro_libnx.a,$(DEPENDS_TMP))
.PHONY: clean all
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
all : $(OUTPUT).pfs0 $(OUTPUT).nro
$(OUTPUT).pfs0 : $(OUTPUT).nso
$(OUTPUT).nso : $(OUTPUT).elf
ifeq ($(strip $(NO_NACP)),)
$(OUTPUT).nro : $(OUTPUT).elf $(OUTPUT).nacp
else
$(OUTPUT).nro : $(OUTPUT).elf
endif
$(OUTPUT).elf : $(OBJ)
clean:
rm -f $(DEPENDS) $(OBJ) $(OUTPUT).pfs0 $(OUTPUT).nro $(OUTPUT).elf
#---------------------------------------------------------------------------------
# you need a rule like this for each extension you use as binary data
#---------------------------------------------------------------------------------
%.bin.o %_bin.h : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------