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RetroArch/Makefile.retrofw
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LibretroAdmin 45dc0a99c3 input: Dingux rumble through evdev and the output writer; drop libShake 
libShake was used by one driver, sdl_dingux, for its vibration motor,
and linked on webOS for nothing. What it did there is a few evdev calls:
find the node that plays a periodic sine, upload a sine per motor, play
and stop it, set the gain. input/common/linux_ff.h does those with no
allocation (libShake scanned /dev/input with scandir and malloc'd a node
per entry) and none of its bugs (an open that failed was taken as
success).

The uploads and plays now go out from the shared output writer, as
udev's and XInput's rumble do, so a motor's driver never holds the
frame; the frontend's thread notes the strengths, both in one word, and
returns. A core asking the same strength each frame costs no call at
all. On MIPS (-O2, mips32) that path is 15 to 19 instructions with no
stack frame, where it was about 32 with a frame and four spills.

Every SDL Dingux target gets the motor now, not only the three that
built libShake; one without a motor finds none and has no rumble, as
before.

The output writer makes no syscall for a wake while one is still on its
way, which every driver on it gains from. xinput_rumble_test says a call
did not wait by the write not being done yet, not by a time a loaded
runner can overrun.

samples/input/dingux_rumble runs the real driver against a stand-in
/dev/input and SDL, with threads and without.
2026-10-28 08:02:03 +01:00

265 lines
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Makefile
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#########################
## Toolchain variables ##
#########################
# Default toolchain directory
TOOLCHAIN_DIR=/opt/retrofw-toolchain
# All toolchain-related variables may be
# overridden via the command line
ifdef RETROFW_CC
CC = $(GCW0_CC)
else
CC = $(TOOLCHAIN_DIR)/usr/bin/mipsel-linux-gcc
endif
ifdef RETROFW_CXX
CXX = $(GCW0_CXX)
else
CXX = $(TOOLCHAIN_DIR)/usr/bin/mipsel-linux-g++
endif
ifdef RETROFW_STRIP
STRIP = $(GCW0_STRIP)
else
STRIP = $(TOOLCHAIN_DIR)/usr/bin/mipsel-linux-strip
endif
GCW0_SDL_CONFIG ?= $(TOOLCHAIN_DIR)/usr/mipsel-buildroot-linux-uclibc/sysroot/usr/bin/sdl-config
GCW0_FREETYPE_CONFIG ?= $(TOOLCHAIN_DIR)/usr/mipsel-buildroot-linux-uclibc/sysroot/usr/bin/freetype-config
#GCW0_MK_SQUASH_FS ?= $(TOOLCHAIN_DIR)/usr/bin/mksquashfs
GCW0_MK_SQUASH_FS ?= mksquashfs
GCW0_INC_DIR ?= $(TOOLCHAIN_DIR)/usr/mipsel-buildroot-linux-uclibc/sysroot/usr/include
GCW0_LIB_DIR ?= $(TOOLCHAIN_DIR)/usr/mipsel-buildroot-linux-uclibc/sysroot/usr/lib
#########################
#########################
PACKAGE_NAME = retroarch
RETROFW = 1
DEBUG ?= 0
DINGUX = 1
HAVE_SCREENSHOTS = 0
HAVE_REWIND = 1
HAVE_7ZIP = 1
HAVE_RZSTD = 1
HAVE_AL = 0
# ALSA freezes when switching back from menu
HAVE_ALSA = 0
HAVE_DSP_FILTER = 1
HAVE_VIDEO_FILTER = 1
HAVE_STATIC_VIDEO_FILTERS = 1
HAVE_STATIC_AUDIO_FILTERS = 1
HAVE_FILTERS_BUILTIN = 1
# the cleanroom crypto, keychain and TLS client (HAVE_OPENSSL linked a
# library no backend used)
HAVE_CRYPTO = 1
HAVE_KEYCHAIN = 1
HAVE_RETROSSL = 1
HAVE_C99 = 1
HAVE_CC = 1
HAVE_CC_RESAMPLER = 1
HAVE_CHD = 1
HAVE_RCHD = 1
HAVE_COMMAND = 0
HAVE_CXX = 1
HAVE_RMP3 = 1
HAVE_DYNAMIC = 1
HAVE_EGL = 0
HAVE_FREETYPE = 0
HAVE_GDI = 1
HAVE_GETADDRINFO = 0
HAVE_GETOPT_LONG = 1
HAVE_GLSL = 0
HAVE_HID = 0
HAVE_RMODTRACKER = 1
HAVE_IMAGEVIEWER = 0
HAVE_LANGEXTRA = 0
HAVE_LIBRETRODB = 1
HAVE_MENU = 1
HAVE_MENU_COMMON = 1
HAVE_GFX_WIDGETS = 0
HAVE_MMAP = 1
HAVE_OPENDINGUX_FBDEV = 0
HAVE_OPENGL = 0
HAVE_OPENGL1 = 0
HAVE_OPENGLES = 0
HAVE_OPENGLES3 = 0
HAVE_OPENGL_CORE = 0
HAVE_OPENSSL = 0
HAVE_OVERLAY = 0
HAVE_RBMP = 1
HAVE_RJPEG = 1
HAVE_RPILED = 0
HAVE_RPNG = 1
HAVE_RWEBP = 1
HAVE_RDDS = 1
HAVE_RUNAHEAD = 0
HAVE_SDL_DINGUX = 1
HAVE_SHADERPIPELINE = 0
HAVE_STB_IMAGE = 1
HAVE_RVORBIS = 1
HAVE_STDIN_CMD = 0
HAVE_THREADS = 1
HAVE_UDEV = 0
HAVE_RGUI = 1
HAVE_MATERIALUI = 0
HAVE_XMB = 0
HAVE_OZONE = 0
HAVE_CONFIGFILE = 1
HAVE_PATCH = 1
HAVE_XDELTA = 0 # disabled because <lzma.h> isn't available (or we haven't figured out how to install it)
HAVE_CHEATS = 1
HAVE_CHEEVOS = 0
HAVE_CORE_INFO_CACHE = 1
HAVE_OSS =1
OS = Linux
TARGET = retroarch
OPK_NAME = retroarch_retrofw.opk
OBJ :=
LINK := $(CXX)
DEF_FLAGS := -march=mips32 -mtune=mips32 -mhard-float -fomit-frame-pointer
DEF_FLAGS += -mplt -mno-shared
DEF_FLAGS += -ffunction-sections -fdata-sections
DEF_FLAGS += -I. -Ideps -DDINGUX=1 -DRETROFW=1 -MMD
DEF_FLAGS += -Wall -Wno-unused-variable -flto
DEF_FLAGS += -std=gnu99 -D_GNU_SOURCE
LIBS := -ldl -lrt -pthread
CFLAGS :=
CXXFLAGS := -fno-exceptions -fno-rtti -std=c++11 -D__STDC_CONSTANT_MACROS
ASFLAGS :=
LDFLAGS := -Wl,--gc-sections
INCLUDE_DIRS = -I$(GCW0_INC_DIR)
LIBRARY_DIRS = -L$(GCW0_LIB_DIR)
DEFINES := -DRARCH_INTERNAL -D_FILE_OFFSET_BITS=64 -UHAVE_STATIC_DUMMY
DEFINES += -DHAVE_C99=1 -DHAVE_CXX=1
DEFINES += -DHAVE_GETOPT_LONG=1 -DHAVE_DYNAMIC=1
DEFINES += -DHAVE_FILTERS_BUILTIN
DEFINES += -DHAVE_OSS=1
SDL_DINGUX_CFLAGS := $(shell $(GCW0_SDL_CONFIG) --cflags)
SDL_DINGUX_LIBS := $(shell $(GCW0_SDL_CONFIG) --libs)
FREETYPE_CFLAGS := $(shell $(GCW0_FREETYPE_CONFIG) --cflags)
FREETYPE_LIBS := $(shell $(GCW0_FREETYPE_CONFIG) --libs)
MMAP_LIBS = -lc
OBJDIR_BASE := obj-unix
ifeq ($(DEBUG), 1)
OBJDIR := $(OBJDIR_BASE)/debug
DEF_FLAGS += -O0 -g -DDEBUG -D_DEBUG
else
OBJDIR := $(OBJDIR_BASE)/release
DEF_FLAGS += -O2 -DNDEBUG
endif
include Makefile.common
DEF_FLAGS += $(INCLUDE_DIRS)
LDFLAGS += $(CFLAGS) $(CXXFLAGS) $(DEF_FLAGS)
CFLAGS += $(DEF_FLAGS)
CXXFLAGS += $(DEF_FLAGS)
HEADERS = $(wildcard */*/*.h) $(wildcard */*.h) $(wildcard *.h)
ifneq ($(V),1)
Q := @
endif
RARCH_OBJ := $(addprefix $(OBJDIR)/,$(OBJ))
define DESKTOP_ENTRY
[Desktop Entry]
Name=RetroArch
Comment=Frontend for emulators, game engines
Exec=retroarch
Terminal=false
Type=Application
StartupNotify=true
Icon=retroarch
Categories=emulators;
X-OD-NeedsDownscaling=true
endef
export DESKTOP_ENTRY
all: $(TARGET) opk
define INFO
ASFLAGS: $(ASFLAGS)
CC: $(CC)
CFLAGS: $(CFLAGS)
CPPFLAGS: $(CPPFLAGS)
CXX: $(CXX)
CXXFLAGS: $(CXXFLAGS)
DEFINES: $(DEFINES)
LDFLAGS: $(LDFLAGS)
LIBRARY_DIRS: $(LIBRARY_DIRS)
LIBS: $(LIBS)
LINK: $(LINK)
OBJCFLAGS: $(OBJCFLAGS)
RARCH_OBJ: $(RARCH_OBJ)
endef
export INFO
info:
ifneq ($(V),1)
@echo "$$INFO"
endif
-include $(RARCH_OBJ:.o=.d)
SYMBOL_MAP := -Wl,-Map=output.map
$(TARGET): $(RARCH_OBJ)
@$(if $(Q), $(shell echo echo LD $@),)
$(Q)$(LINK) -o $@ $(RARCH_OBJ) $(LIBS) $(LDFLAGS) $(LIBRARY_DIRS)
$(OBJDIR)/%.o: %.c
@mkdir -p $(dir $@)
@$(if $(Q), $(shell echo echo CC $<),)
$(Q)$(CC) $(CPPFLAGS) $(CFLAGS) $(DEFINES) -c -o $@ $<
$(OBJDIR)/%.o: %.cpp
@mkdir -p $(dir $@)
@$(if $(Q), $(shell echo echo CXX $<),)
$(Q)$(CXX) $(CPPFLAGS) $(CXXFLAGS) $(DEFINES) -MMD -c -o $@ $<
$(OBJDIR)/%.o: %.m
@mkdir -p $(dir $@)
@$(if $(Q), $(shell echo echo OBJC $<),)
$(Q)$(CXX) $(OBJCFLAGS) $(DEFINES) -MMD -c -o $@ $<
$(OBJDIR)/%.o: %.S $(HEADERS)
@mkdir -p $(dir $@)
@$(if $(Q), $(shell echo echo AS $<),)
$(Q)$(CC) $(CFLAGS) $(ASFLAGS) $(DEFINES) -c -o $@ $<
clean:
@$(if $(Q), echo $@,)
$(Q)rm -rf $(OBJDIR_BASE)
$(Q)rm -f $(TARGET)
$(Q)rm -f *.d
$(Q)rm -rf $(OPK_NAME)
opk: $(TARGET)
echo "$$DESKTOP_ENTRY" > default.retrofw.desktop
rm -f $(OPK_NAME)
cp media/ico_src/icon32.png retroarch.png
chmod +x retroarch
chmod 777 retroarch
ifeq ($(STRIP_BIN),1)
$(STRIP) --strip-unneeded retroarch
endif
$(GCW0_MK_SQUASH_FS) retroarch default.retrofw.desktop retroarch.png $(OPK_NAME) -all-root -no-xattrs -noappend -no-exports
rm -f default.retrofw.desktop retroarch.png
.PHONY: all clean opk
print-%:
@echo '$*=$($*)'
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