Makefile

# FIX_LIBSTDCXX=1 builds the _compat variant: it ships a private libstdc++.so.6
# via rpath, immune to other hmods replacing the system copy (~225KB more).
ifdef FIX_LIBSTDCXX
MOD_ID   := options_menu_compat
MOD_NAME := Options Menu (compat)
VARIANT  := compat
else
MOD_ID   := options_menu
MOD_NAME := Options Menu
VARIANT  := plain
endif
MOD_CREATOR  := CompCom, DefKorns
MOD_CATEGORY := Options Menu
BINARIES     := mod/etc/options_menu/options mod/etc/options_menu/optiond mod/etc/options_menu/mod_uninstall/mod_uninstall mod/etc/options_menu/save_manager/save_manager mod/bin/standby_watchdog mod/etc/options_menu/scripts/gen_splash mod/etc/options_menu/scripts/ChangeCombo mod/etc/options_menu/scripts/downloader

CXX = g++
STRIP = strip
ifdef CROSS_PREFIX
PKG_CONFIG_LIBDIR = /usr/lib/arm-linux-gnueabihf/pkgconfig
SDL_CFLAGS = -I/usr/include/arm-linux-gnueabihf $(shell PKG_CONFIG_LIBDIR=$(PKG_CONFIG_LIBDIR) pkg-config --cflags sdl2 SDL2_ttf libpng)
SDL_LIBS = $(shell PKG_CONFIG_LIBDIR=$(PKG_CONFIG_LIBDIR) pkg-config --libs sdl2 SDL2_ttf libpng)
PNG_LIBS = $(shell PKG_CONFIG_LIBDIR=$(PKG_CONFIG_LIBDIR) pkg-config --libs libpng)
LDFLAGS = -Wl,--allow-shlib-undefined
VENDORED_LIBS = mod/etc/options_menu/lib/libSDL2_ttf-2.0.so.0 mod/etc/options_menu/lib/libfreetype.so.6
ifdef FIX_LIBSTDCXX
VENDORED_LIBS += mod/etc/options_menu/lib/libstdc++.so.6
STDCXX_RPATH = -Wl,-rpath,/etc/options_menu/lib
STDCXX_RPATH_ORIGIN = -Wl,-rpath,'$$ORIGIN/lib'
endif
else
SDL_CFLAGS = $(shell sdl2-config --cflags) $(shell pkg-config --cflags SDL2_ttf)
SDL_LIBS = $(shell sdl2-config --libs) $(shell pkg-config --libs SDL2_ttf) -lpng
PNG_LIBS = -lpng
LDFLAGS =
VENDORED_LIBS =
endif
CXXFLAGS = -std=c++14 -Os $(SDL_CFLAGS) -DMOD_VERSION=\"v$(MOD_VER)\"
LDLIBS = $(SDL_LIBS)
SOURCES = src/main.cpp src/back_stack.cpp src/command.cpp src/download_screen.cpp src/localization.cpp src/framework/badge.cpp src/framework/dialog.cpp src/framework/sdl_context.cpp src/framework/texture.cpp src/framework/controller.cpp src/framework/powerwatch.cpp src/framework/draw_helpers.cpp src/framework/utf8.cpp src/framework/font8x8_lookup.cpp src/framework/uitheme.cpp src/framework/list_jump.cpp src/framework/text_layout.cpp
OBJECTS = $(SOURCES:.cpp=.o)
ALL_OBJECTS = $(OBJECTS) src/daemon.o src/mod_uninstall.o src/save_manager.o src/standby_watchdog.o src/gen_splash.o src/change_combo.o

MOD_DEPS := $(BINARIES) $(VENDORED_LIBS)
ifndef FIX_LIBSTDCXX
# a prior compat build leaves this behind in mod/
MOD_DEPS += no-private-libstdcxx
endif

# built into the toolchain image from Noto Sans JP (see its README), not tracked
FONT_LATIN := mod/etc/options_menu/fonts/NotoSansJP-Latin-subset.ttf
MOD_DEPS += $(FONT_LATIN)

all: hmod

compile: $(BINARIES) $(VENDORED_LIBS)

# relink everything when switching variant (different rpaths) or version (MOD_VERSION)
.build-flags: FORCE
	@[ "$$(cat $@ 2>/dev/null)" = "$(VARIANT) $(MOD_VER)" ] || echo "$(VARIANT) $(MOD_VER)" > $@

$(ALL_OBJECTS): .build-flags

no-private-libstdcxx:
	rm -f mod/etc/options_menu/lib/libstdc++.so.6

# SDL2_ttf/freetype aren't on the console's own rootfs; shipped as
# mod/etc/options_menu/lib/*.so and found via rpath instead.
mod/etc/options_menu/options: $(OBJECTS)
	$(CROSS_PREFIX)$(CXX) $(OBJECTS) $(LDLIBS) $(LDFLAGS) -Wl,-rpath,'$$ORIGIN/lib' -o $@
	$(CROSS_PREFIX)$(STRIP) $@

mod/etc/options_menu/lib:
	mkdir -p $@

# always copied, so a new image can't leave a stale font behind
$(FONT_LATIN): FORCE
	cp /opt/options-menu/fonts/NotoSansJP-Latin-subset.ttf $@

# built from source in the toolchain image, copied in each build
mod/etc/options_menu/lib/libSDL2_ttf-2.0.so.0: | mod/etc/options_menu/lib
	cp /usr/lib/arm-linux-gnueabihf/libSDL2_ttf-2.0.so.0 $@

mod/etc/options_menu/lib/libfreetype.so.6: | mod/etc/options_menu/lib
	cp /usr/lib/arm-linux-gnueabihf/libfreetype.so.6 $@

mod/etc/options_menu/lib/libstdc++.so.6: | mod/etc/options_menu/lib
	cp $$($(CROSS_PREFIX)$(CXX) -print-file-name=libstdc++.so.6) $@
	$(CROSS_PREFIX)$(STRIP) --strip-unneeded $@

mod/etc/options_menu/optiond: src/daemon.o src/framework/controller.o
	$(CROSS_PREFIX)$(CXX) $(LDFLAGS) $^ $(STDCXX_RPATH_ORIGIN) -o $@
	$(CROSS_PREFIX)$(STRIP) $@

mod/etc/options_menu/mod_uninstall/mod_uninstall: src/mod_uninstall.o src/localization.o $(filter src/framework/%,$(OBJECTS))
	$(CROSS_PREFIX)$(CXX) $^ $(LDLIBS) $(LDFLAGS) -Wl,-rpath,/etc/options_menu/lib -o $@
	$(CROSS_PREFIX)$(STRIP) $@
	upx --lzma $@

mod/etc/options_menu/save_manager/save_manager: src/save_manager.o src/localization.o $(filter src/framework/%,$(OBJECTS))
	$(CROSS_PREFIX)$(CXX) $^ $(LDLIBS) $(LDFLAGS) -Wl,-rpath,/etc/options_menu/lib -o $@
	$(CROSS_PREFIX)$(STRIP) $@
	upx --lzma $@

mod/bin/standby_watchdog: src/standby_watchdog.o src/framework/controller.o src/framework/powerwatch.o
	$(CROSS_PREFIX)$(CXX) $(LDFLAGS) $^ $(STDCXX_RPATH) -o $@
	$(CROSS_PREFIX)$(STRIP) $@
	upx --lzma $@

mod/etc/options_menu/scripts/gen_splash: src/gen_splash.o src/localization.o src/framework/utf8.o src/framework/font8x8_lookup.o src/framework/uitheme.o
	$(CROSS_PREFIX)$(CXX) $^ $(PNG_LIBS) $(LDFLAGS) $(STDCXX_RPATH) -o $@
	$(CROSS_PREFIX)$(STRIP) $@

mod/etc/options_menu/scripts/ChangeCombo: src/change_combo.o src/framework/controller.o src/localization.o
	$(CROSS_PREFIX)$(CXX) $^ $(LDFLAGS) $(STDCXX_RPATH) -o $@
	$(CROSS_PREFIX)$(STRIP) $@
	upx --lzma $@

# plain C against the toolchain's static curl: no libstdc++, same in both variants
CC = gcc
CURL_PREFIX = /opt/curl-static
CFLAGS = -std=gnu99 -O2 -Wall -I$(CURL_PREFIX)/include
CURL_LDLIBS = $(shell $(CURL_PREFIX)/bin/curl-config --static-libs)

src/cacert.pem:
	curl -fL -o $@ https://curl.se/ca/cacert.pem

# built from inside src/ so the symbols are _binary_cacert_pem_*
src/ca_bundle.o: src/cacert.pem
	cd src && $(CROSS_PREFIX)ld -r -b binary -o ca_bundle.o cacert.pem

mod/etc/options_menu/scripts/downloader: src/downloader.o src/ca_bundle.o
	$(CROSS_PREFIX)$(CC) $^ $(CURL_LDLIBS) -o $@
	$(CROSS_PREFIX)$(STRIP) $@
	upx --lzma $@

%.o: %.c
	$(CROSS_PREFIX)$(CC) $(CFLAGS) -c $< -o $@

%.o: %.cpp
	$(CROSS_PREFIX)$(CXX) $(CXXFLAGS) -c $< -o $@

clean:
	find . -name "*.o" -type f -not -path "./vendor/*" -delete
	rm -f $(BINARIES) .build-flags
	rm -rf mod/etc/options_menu/lib out/

include vendor/hmod-build/hmod.mk

.PHONY: all compile clean no-private-libstdcxx