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mkxp-z/libretro/Makefile

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Makefile
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# Configure flags are based on the ones from https://github.com/ruby/ruby.wasm
RUBY_VERSION ?= v3_3_7
LIBYAML_VERSION ?= 0.2.5
ZLIB_VERSION ?= 1.3.1
TARGET ?= wasm32-wasip1
WASI_SDK ?= /opt/wasi-sdk
WASM_OPT ?= wasm-opt
WASM2C ?= wasm2c
CTAGS ?= ctags
AUTORECONF ?= autoreconf
CURL ?= curl
GIT ?= git
ZIP ?= zip
SED ?= sed
GREP ?= grep
CC ?= cc
CXX ?= c++
LD ?= ld
AR ?= ar
RANLIB ?= ranlib
CFLAGS ?=
CXXFLAGS ?=
LDFLAGS ?=
WASI_CFLAGS ?= -Oz -DNDEBUG
WASI_CXXFLAGS ?= -Oz -DNDEBUG
WASI_LDFLAGS ?=
WASM_OPT_FLAGS ?= -Oz
BUILD_PREFIX := ${PWD}/build
OUTDIR := $(BUILD_PREFIX)/libretro-stage1
LIBDIR := $(BUILD_PREFIX)/lib
DOWNLOADS := $(BUILD_PREFIX)/downloads
RUBY := $(LIBDIR)/bin/ruby
CLONE := $(GIT) clone -q --depth 1
GITHUB := https://github.com
WASI_CC := $(WASI_SDK)/bin/clang
WASI_CXX := $(WASI_SDK)/bin/clang++
WASI_LD := $(WASI_SDK)/bin/clang
WASI_AR := $(WASI_SDK)/bin/llvm-ar
WASI_RANLIB := $(WASI_SDK)/bin/llvm-ranlib
NATIVE_TOOLCHAIN := CC=$(CC) CXX=$(CXX) LD=$(LD) AR=$(AR) RANLIB=$(RANLIB)
WASI_TOOLCHAIN := CC=$(WASI_CC) CXX=$(WASI_CXX) LD=$(WASI_LD) AR=$(WASI_AR) RANLIB=$(WASI_RANLIB)
all default: ruby-dist ruby-bindings
ruby-dist: $(OUTDIR)/mkxp-retro-dist.zip $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby.h $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_0.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_1.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_2.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_3.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_4.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_5.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_6.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_7.c
ruby-bindings: $(OUTDIR)/mkxp-sandbox-bindgen.cpp $(OUTDIR)/mkxp-sandbox-bindgen.h
clean: clean-ruby-dist clean-ruby-bindings
rm -rf $(LIBDIR)/*
rm -rf $(DOWNLOADS)/*
clean-ruby-dist:
rm -f $(OUTDIR)/mkxp-retro-dist.zip
rm -rf $(OUTDIR)/mkxp-retro-ruby
clean-ruby-bindings:
rm -f $(OUTDIR)/mkxp-sandbox-bindgen.cpp
rm -f $(OUTDIR)/mkxp-sandbox-bindgen.h
rm -f $(LIBDIR)/tags.c
rm -f $(LIBDIR)/tags
# Cross Ruby (targets WASI)
$(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby.h $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_0.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_1.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_2.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_3.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_4.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_5.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_6.c $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby_7.c &: $(LIBDIR)/mkxp-retro-dist/bin/ruby
mkdir -p $(OUTDIR)/mkxp-retro-ruby
$(WASM2C) $(LIBDIR)/mkxp-retro-dist/bin/ruby -n ruby --num-outputs=8 -o $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby.c
# Find all the function types declared using `FUNC_TYPE_DECL_EXTERN_T` and redeclare them as macros to fix the "initializer element is not constant" compilation error that occurs when using GCC versions earlier than 8.1.0
rm -f $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-func-types.h
for func_type in $$($(GREP) -r 'FUNC_TYPE_DECL_EXTERN_T *([^()]*)' $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h | $(GREP) -v '# *define' | $(SED) -e 's/FUNC_TYPE_DECL_EXTERN_T *( *\(.*\) *).*/\1/'); do \
echo "#define $$func_type \"$$(od -N 32 -x /dev/urandom | cut -b 9- | tr -d ' \n' | $(SED) -e 's/.\{2\}/\\x&/g')\"" >> $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-func-types.h; \
done
$(SED) -i 's/ *# *define * FUNC_TYPE_DECL_EXTERN_T *([^()]).*/#define FUNC_TYPE_DECL_EXTERN_T(x)/g' $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h
$(SED) -i 's/ *# *define * FUNC_TYPE_EXTERN_T *([^()]).*/#define FUNC_TYPE_EXTERN_T(x) const char _mkxp_unused_##x[]/g' $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h
$(SED) -i 's/ *# *define * FUNC_TYPE_T *([^()]).*/#define FUNC_TYPE_T(x) static const char _mkxp_unused_##x[]/g' $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h
$(SED) -i 's/__has_builtin *([^()]*)/0/g' $(OUTDIR)/mkxp-retro-ruby/mkxp-retro-ruby-impl.h
$(OUTDIR)/mkxp-retro-dist.zip: $(LIBDIR)/mkxp-retro-dist/bin/ruby $(RUBY)
rm -rf $(LIBDIR)/_mkxp-retro-dist
cp -r $(LIBDIR)/mkxp-retro-dist $(LIBDIR)/_mkxp-retro-dist
rm $(LIBDIR)/_mkxp-retro-dist/bin/ruby
rm $(LIBDIR)/_mkxp-retro-dist/lib/libruby-static.a
rm -r $(LIBDIR)/_mkxp-retro-dist/include
rm -r $(LIBDIR)/_mkxp-retro-dist/share
rm -r $(LIBDIR)/_mkxp-retro-dist/lib/ruby/gems
rm -r $(LIBDIR)/_mkxp-retro-dist/lib/ruby/$(shell $(RUBY) -e 'puts RUBY_VERSION.split(".")[..1].join(".")').0/bundler
rm -r $(LIBDIR)/_mkxp-retro-dist/lib/ruby/$(shell $(RUBY) -e 'puts RUBY_VERSION.split(".")[..1].join(".")').0/rdoc
rm -r $(LIBDIR)/_mkxp-retro-dist/lib/ruby/$(shell $(RUBY) -e 'puts RUBY_VERSION.split(".")[..1].join(".")').0/rubygems
echo '# This is a Ruby script that does nothing. We make Ruby load this file on startup just because Ruby needs to load a script on startup for some reason.' > $(LIBDIR)/_mkxp-retro-dist/bin/mkxp-z
rm -f $(OUTDIR)/mkxp-retro-dist.zip
cd $(LIBDIR)/_mkxp-retro-dist && $(ZIP) -r $(OUTDIR)/mkxp-retro-dist.zip *
rm -r $(LIBDIR)/_mkxp-retro-dist
$(LIBDIR)/mkxp-retro-dist/bin/ruby: $(DOWNLOADS)/crossruby/Makefile ruby-bindings.h
cd $(DOWNLOADS)/crossruby && $(MAKE) install DESTDIR=$(LIBDIR)
$(OUTDIR)/mkxp-sandbox-bindgen.cpp $(OUTDIR)/mkxp-sandbox-bindgen.h &: sandbox-bindgen.rb $(LIBDIR)/tags $(RUBY)
mkdir -p $(OUTDIR)
cd $(LIBDIR) && $(RUBY) ${PWD}/sandbox-bindgen.rb
mv $(LIBDIR)/mkxp-sandbox-bindgen.h $(OUTDIR)
mv $(LIBDIR)/mkxp-sandbox-bindgen.cpp $(OUTDIR)
$(LIBDIR)/tags: $(LIBDIR)/tags.c
$(CTAGS) --fields=kS --kinds-c=epx -o $(LIBDIR)/tags $(LIBDIR)/tags.c
$(LIBDIR)/tags.c: $(DOWNLOADS)/crossruby/.ext/include/$(TARGET)/ruby/config.h
mkdir -p $(LIBDIR)
echo '#include <ruby.h>' | $(WASI_CC) -E -I$(DOWNLOADS)/crossruby/include -I$(DOWNLOADS)/crossruby/.ext/include/$(TARGET) -o $(LIBDIR)/tags.c -
$(DOWNLOADS)/crossruby/Makefile $(DOWNLOADS)/crossruby/.ext/include/$(TARGET)/ruby/config.h &: $(DOWNLOADS)/crossruby/configure $(RUBY) $(LIBDIR)/usr/local/lib/libyaml.a $(LIBDIR)/usr/local/lib/libz.a
cd $(DOWNLOADS)/crossruby && ./configure \
--prefix=/mkxp-retro-dist \
--host $(TARGET) \
--build $(shell $(RUBY) -e 'puts(RbConfig::CONFIG["host"])') \
--with-static-linked-ext \
--with-ext=bigdecimal,cgi/escape,continuation,coverage,date,digest/bubblebabble,digest,digest/md5,digest/rmd160,digest/sha1,digest/sha2,etc,fcntl,fiber,json,json/generator,json/parser,nkf,objspace,pathname,psych,racc/cparse,rbconfig/sizeof,ripper,stringio,strscan,monitor,zlib \
--with-libyaml-dir=$(LIBDIR)/usr/local \
--with-zlib-dir=$(LIBDIR)/usr/local \
--with-baseruby=$(RUBY) \
WASMOPT=$(WASM_OPT) \
WASI_SDK_PATH=$(WASI_SDK) \
$(WASI_TOOLCHAIN) \
LDFLAGS='-Wl,--export-dynamic,--stack-first,-z,stack-size=16777216 $(WASI_LDFLAGS)' \
XCFLAGS='-DWASM_SETJMP_STACK_BUFFER_SIZE=24576 -DWASM_FIBER_STACK_BUFFER_SIZE=24576 -DWASM_SCAN_STACK_BUFFER_SIZE=24576' \
cppflags='$(WASI_CXXFLAGS)' \
optflags='$(WASI_CFLAGS) -fno-fast-math' \
wasmoptflags='$(WASM_OPT_FLAGS) --pass-arg=asyncify-ignore-imports' \
$(shell $(RUBY) -e 'puts "ac_cv_func_dlopen=no" if RUBY_VERSION.split(".")[..1].join(".").to_f < 3.3') \
--disable-rubygems \
--disable-install-doc
$(DOWNLOADS)/crossruby/configure: $(DOWNLOADS)/crossruby/configure.ac $(RUBY)
cd $(DOWNLOADS)/crossruby && $(RUBY) tool/downloader.rb -d tool -e gnu config.guess config.sub
cd $(DOWNLOADS)/crossruby && $(AUTORECONF) -i
$(DOWNLOADS)/crossruby/configure.ac: $(DOWNLOADS)/ruby-12995.patch
mkdir -p $(DOWNLOADS)
$(CLONE) $(GITHUB)/ruby/ruby $(DOWNLOADS)/crossruby -b $(RUBY_VERSION)
cd $(DOWNLOADS)/crossruby && $(GIT) apply $(DOWNLOADS)/ruby-12995.patch
cd $(DOWNLOADS)/crossruby && $(GIT) apply ${PWD}/ruby-compat.patch
echo '#include "${PWD}/ruby-bindings.h"' >> $(DOWNLOADS)/crossruby/gc.c
$(DOWNLOADS)/ruby-12995.patch:
mkdir -p $(DOWNLOADS)
$(CURL) -Lo $(DOWNLOADS)/ruby-12995.patch $(GITHUB)/ruby/ruby/pull/12995.diff
# Base Ruby (targets the build machine)
$(RUBY): $(DOWNLOADS)/baseruby/Makefile
cd $(DOWNLOADS)/baseruby && $(MAKE) install
if ! $(RUBY) -e 'exit 1 if RUBY_VERSION.split(".")[..1].join(".").to_f < 3.2'; then echo -e '\e[91m[ERROR] Ruby version must be at least 3.2 because earlier versions do not have WebAssembly support\e[0m'; rm $(RUBY); exit 1; fi;
$(DOWNLOADS)/baseruby/Makefile: $(DOWNLOADS)/baseruby/configure
cd $(DOWNLOADS)/baseruby && ./configure --prefix=$(LIBDIR) $(NATIVE_TOOLCHAIN) LDFLAGS='$(LDFLAGS)' XCFLAGS='$(CFLAGS)' cppflags='$(CXXFLAGS)' --disable-install-doc
$(DOWNLOADS)/baseruby/configure: $(DOWNLOADS)/baseruby/configure.ac
cd $(DOWNLOADS)/baseruby && $(AUTORECONF) -i
$(DOWNLOADS)/baseruby/configure.ac:
mkdir -p $(DOWNLOADS)
$(CLONE) $(GITHUB)/ruby/ruby $(DOWNLOADS)/baseruby -b $(RUBY_VERSION)
# libyaml
$(LIBDIR)/usr/local/lib/libyaml.a: $(DOWNLOADS)/libyaml/Makefile
cd $(DOWNLOADS)/libyaml && $(MAKE) install DESTDIR=$(LIBDIR)
$(DOWNLOADS)/libyaml/Makefile: $(DOWNLOADS)/libyaml/configure
cd $(DOWNLOADS)/libyaml && ./configure --host $(TARGET) $(WASI_TOOLCHAIN) CFLAGS='$(WASI_CFLAGS)' CXXFLAGS='$(WASI_CXXFLAGS)' LDFLAGS='$(WASI_LDFLAGS)'
$(DOWNLOADS)/libyaml/configure: $(DOWNLOADS)/libyaml/configure.ac
cd $(DOWNLOADS)/libyaml && $(AUTORECONF) -i
$(DOWNLOADS)/libyaml/configure.ac:
mkdir -p $(DOWNLOADS)
$(CLONE) $(GITHUB)/yaml/libyaml $(DOWNLOADS)/libyaml -b $(LIBYAML_VERSION)
# zlib
$(LIBDIR)/usr/local/lib/libz.a: $(DOWNLOADS)/zlib/Makefile
cd $(DOWNLOADS)/zlib && $(MAKE) install DESTDIR=$(LIBDIR)
$(DOWNLOADS)/zlib/Makefile: $(DOWNLOADS)/zlib/configure
cd $(DOWNLOADS)/zlib && CHOST=linux $(WASI_TOOLCHAIN) CFLAGS='$(WASI_CFLAGS)' CXXFLAGS='$(WASI_CXXFLAGS)' LDFLAGS='$(WASI_LDFLAGS)' ./configure --static
$(DOWNLOADS)/zlib/configure:
mkdir -p $(DOWNLOADS)
$(CLONE) $(GITHUB)/madler/zlib $(DOWNLOADS)/zlib -b v$(ZLIB_VERSION)
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