Code examples for opening windows for various purposes in very few bytes
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DEBUG=false
CFLAGS := -fno-plt -O1 -std=gnu11 -nostartfiles -Wall -Wextra
CFLAGS += -fno-stack-protector -fno-stack-check -fno-unwind-tables -fno-asynchronous-unwind-tables -fomit-frame-pointer
CFLAGS += -no-pie -fno-pic -fno-PIE -fno-PIC -march=core2 -ffunction-sections -fdata-sections
ifeq ($(DEBUG),false)
CFLAGS += -nostdlib
else
CFLAGS += -DDEBUG=true
endif
.PHONY: clean checkgccversion noelfver
all : checkgccversion gtk-opengl xlib-opengl sdl2-opengl
noelfver:
make -C noelfver
checkgccversion :
ifneq ($(shell expr `gcc -dumpversion`),8.3.0)
$(error GCC version must be 8.3.0)
endif
packer : vondehi/vondehi.asm
cd vondehi; nasm -fbin -o vondehi vondehi.asm
shader.h : shader.frag Makefile
mono ./shader_minifier.exe --preserve-externals shader.frag -o shader.h
gtk-opengl.elf : gtk-opengl.c shader.h Makefile
gcc -o $@ $< `pkg-config --cflags gtk+-3.0` -lGL -lgtk-3 -lgdk-3 -lgobject-2.0 $(CFLAGS)
xlib-opengl.elf : xlib-opengl.c shader.h Makefile
gcc -o $@ $< -lX11 -lGL -lXrandr $(CFLAGS)
sdl2-opengl.elf : sdl2-opengl.c shader.h Makefile
gcc -o $@ $< -lSDL2 -lGL $(CFLAGS)
gtk-opengl : gtk-opengl_opt.elf.packed
mv $< $@
xlib-opengl : xlib-opengl_opt.elf.packed
mv $< $@
sdl2-opengl : sdl2-opengl_opt.elf.packed
mv $< $@
index.html.inc : index.html
cat index.html | xxd -i > index.html.inc
echo ", 0" >> index.html.inc
#all the rest of these rules just takes a compiled elf file and generates a packed version of it with vondehi
%_opt.elf : %.elf Makefile noelfver
cp $< $@
strip $@
strip -R .note -R .comment -R .eh_frame -R .eh_frame_hdr -R .note.gnu.build-id -R .got -R .got.plt -R .gnu.version -R .shstrtab -R .gnu.version_r -R .gnu.hash $@
./noelfver/noelfver $@ > $@.nover
mv $@.nover $@
#remove section header
./Section-Header-Stripper/section-stripper.py $@
#clear out useless bits
sed -i 's/_edata/\x00\x00\x00\x00\x00\x00/g' $@;
sed -i 's/__bss_start/\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00/g' $@;
sed -i 's/_end/\x00\x00\x00\x00/g' $@;
sed -i 's/GLIBC_2\.2\.5/\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00/g' $@;
chmod +x $@
%.xz : % Makefile
-rm $@
lzma --format=lzma -9 --extreme --lzma1=preset=9,lc=0,lp=0,pb=0,nice=40,depth=32,dict=16384 --keep --stdout $< > $@
%.packed : %.xz packer Makefile
cat ./vondehi/vondehi $< > $@
chmod +x $@
wc -c $@
clean :
-rm *.elf shader.h gtk-opengl xlib-opengl sdl2-opengl