!183 [SPEC] Add support for libgccjit

From: @mmzzmm 
Reviewed-by: @eastb233 
Signed-off-by: @eastb233

gcc.spec

@@ -61,7 +61,7 @@
 Summary: Various compilers (C, C++, Objective-C, ...)
 Name: gcc
 Version: %{gcc_version}
-Release: 11
+Release: 12
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ with exceptions and LGPLv2+ and BSD
 URL: https://gcc.gnu.org
 
@@ -357,6 +357,21 @@ Requires: gcc = %{version}-%{release}
 %description gdb-plugin
 This package contains GCC plugin for GDB C expression evaluation.
 
+%package -n libgccjit
+Summary: Library for embedding GCC inside programs and libraries
+Requires: gcc = %{version}-%{release}
+
+%description -n libgccjit
+This package contains shared library with GCC JIT front-end.
+
+%package -n libgccjit-devel
+Summary: Support for embedding GCC inside programs and libraries
+BuildRequires: python3-sphinx
+Requires: libgccjit = %{version}-%{release}
+
+%description -n libgccjit-devel
+This package contains header files and documentation for GCC JIT front-end.
+
 %package -n libquadmath
 Summary: GCC __float128 shared support library
 
@@ -715,6 +730,41 @@ make %{?_smp_mflags} BOOT_CFLAGS="$OPT_FLAGS" bootstrap
 make %{?_smp_mflags} BOOT_CFLAGS="$OPT_FLAGS" BOOT_LDFLAGS="-pie -Wl,-z,relro,-z,now"
 %endif
 
+# Build libgccjit separately, so that normal compiler binaries aren't -fpic
+# unnecessarily.
+mkdir objlibgccjit
+cd objlibgccjit
+CC="$CC" CXX="$CXX" CFLAGS="$OPT_FLAGS" \
+	CXXFLAGS="`echo " $OPT_FLAGS " | sed 's/ -Wall / /g;s/ -fexceptions / /g' \
+		  | sed 's/ -Wformat-security / -Wformat -Wformat-security /'`" \
+	XCFLAGS="$OPT_FLAGS" TCFLAGS="$OPT_FLAGS" \
+	../../configure --disable-bootstrap --enable-host-shared \
+	--enable-languages=jit \
+%ifarch x86_64
+	--with-tune=generic \
+	--with-arch_32=x86-64 \
+	--disable-multilib
+%endif
+%ifarch aarch64
+	--with-multilib-list=lp64 \
+	--enable-bolt
+%endif
+%ifarch riscv64
+	--with-arch=rv64g --with-abi=lp64d \
+	--disable-libquadmath --disable-multilib
+%endif
+make %{?_smp_mflags} BOOT_CFLAGS="$OPT_FLAGS" all-gcc
+cp -a gcc/libgccjit.so* ../gcc/
+cd ../gcc/
+ln -sf xgcc %{gcc_target_platform}-gcc-%{gcc_major}
+cp -a Makefile{,.orig}
+sed -i -e '/^CHECK_TARGETS/s/$/ check-jit/' Makefile
+touch -r Makefile.orig Makefile
+rm Makefile.orig
+make jit.sphinx.html
+make jit.sphinx.install-html jit_htmldir=`pwd`/../../rpm.doc/libgccjit-devel/html
+cd ..
+
 # Make generated man pages even if Pod::Man is not new enough
 perl -pi -e 's/head3/head2/' ../contrib/texi2pod.pl
 for i in ../gcc/doc/*.texi; do
@@ -735,9 +785,9 @@ cd ../..
 cd ..
 mkdir -p rpm.doc/gfortran rpm.doc/objc rpm.doc/gdc rpm.doc/libphobos
 mkdir -p rpm.doc/go rpm.doc/libgo rpm.doc/libquadmath rpm.doc/libitm
-mkdir -p rpm.doc/changelogs/{gcc/cp,gcc/ada,libstdc++-v3,libobjc,libgomp,libcc1,libatomic,libsanitizer}
+mkdir -p rpm.doc/changelogs/{gcc/cp,gcc/ada,gcc/jit,libstdc++-v3,libobjc,libgomp,libcc1,libatomic,libsanitizer}
 
-for i in {gcc,gcc/cp,gcc/ada,libstdc++-v3,libobjc,libgomp,libcc1,libatomic,libsanitizer}/ChangeLog*; do
+for i in {gcc,gcc/cp,gcc/ada,gcc/jit,libstdc++-v3,libobjc,libgomp,libcc1,libatomic,libsanitizer}/ChangeLog*; do
 	cp -p $i rpm.doc/changelogs/$i
 done
 
@@ -988,6 +1038,12 @@ done
 touch -r hook.in %{buildroot}%{_datadir}/gdb/auto-load/%{_prefix}/%{_lib}/libstdc++*gdb.py
 popd
 
+rm -f $FULLEPATH/libgccjit.so
+cp -a objlibgccjit/gcc/libgccjit.so* %{buildroot}%{_prefix}/%{_lib}/
+cp -a ../gcc/jit/libgccjit*.h %{buildroot}%{_prefix}/include/
+/usr/bin/install -c -m 644 objlibgccjit/gcc/doc/libgccjit.info %{buildroot}/%{_infodir}/
+gzip -9 %{buildroot}/%{_infodir}/libgccjit.info
+
 pushd $FULLPATH
 if [ "%{_lib}" = "lib" ]; then
 %if %{build_objc}
@@ -1599,6 +1655,8 @@ end
 
 %ldconfig_scriptlets gdb-plugin
 
+%ldconfig_scriptlets -n libgccjit
+
 %ldconfig_scriptlets -n libgquadmath
 
 %ldconfig_scriptlets -n libitm
@@ -2568,6 +2626,17 @@ end
 %endif
 %endif
 
+%files -n libgccjit
+%{_prefix}/%{_lib}/libgccjit.so.*
+%doc rpm.doc/changelogs/gcc/jit/ChangeLog*
+
+%files -n libgccjit-devel
+%{_prefix}/%{_lib}/libgccjit.so
+%{_prefix}/include/libgccjit*.h
+%{_infodir}/libgccjit.info*
+%doc rpm.doc/libgccjit-devel/*
+%doc gcc/jit/docs/examples
+
 %files plugin-devel
 %dir %{_prefix}/lib/gcc
 %dir %{_prefix}/lib/gcc/%{gcc_target_platform}
@@ -2591,6 +2660,12 @@ end
 %doc rpm.doc/changelogs/libcc1/ChangeLog*
 
 %changelog
+* Fri Jul 08 2022 zhaomengmeng <zhaomengmeng@kylinos.cn> - 10.3.1-12
+- Type:SPEC
+- ID:NA
+- SUG:NA
+- DESC:Enable libgccjit
+
 * Fri May 6 2022 liyancheng <412998149@qq.com> - 10.3.1-11
 - Type:Sync
 - ID:NA