Welcome GCC 11 in form of its first development snapshot (directly after

GCC 10 has branched for its release).

For the next year or so this is going to see significant changes and
fluctuations in quality as new functionality and optimizations are
added, so use with care (and definitely not for production).  We'll
be following weekly snapshots.

lang/gcc11-devel/Makefile

@@ -0,0 +1,163 @@
+# Created by: Gerald Pfeifer <gerald@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	gcc
+PORTVERSION=	11.0.0.s20200503
+CATEGORIES=	lang
+MASTER_SITES=	GCC/snapshots/${DIST_VERSION}
+PKGNAMESUFFIX=	${SUFFIX}-devel
+DISTNAME=	gcc-${DIST_VERSION}
+
+MAINTAINER=	gerald@FreeBSD.org
+COMMENT=	GNU Compiler Collection 11
+
+LICENSE=	GPLv3 GPLv3RLE
+LICENSE_COMB=	multi
+
+ONLY_FOR_ARCHS=	aarch64 amd64 arm armv6 armv7 i386 powerpc powerpc64
+
+LIB_DEPENDS=	libgmp.so:math/gmp \
+		libmpfr.so:math/mpfr \
+		libmpc.so:math/mpc
+BUILD_DEPENDS+=	${LOCALBASE}/bin/as:devel/binutils
+RUN_DEPENDS+=	${LOCALBASE}/bin/as:devel/binutils
+.if defined(MAINTAINER_MODE)
+BUILD_DEPENDS+=	runtest:misc/dejagnu
+.endif
+
+USES=		compiler cpe gmake iconv libtool makeinfo perl5 tar:xz
+USE_BINUTILS=	yes
+USE_PERL5=	build
+
+CPE_VENDOR=	gnu
+CPE_VERSION=	${GCC_VERSION}
+
+# DIST_VERSION relates to downloads, GCC_VERSION and SUFFIX to names
+# of executables and directories once installed.  A PORTVERSION of
+# Y.2.1.s20140817 results in values of Y-20140817, Y.2.1, and Y
+# for these three.
+DIST_VERSION=	${PORTVERSION:C/([0-9]+).*\.s([0-9]+)/\1-\2/}
+GCC_VERSION=	${PORTVERSION:C/(.+)\.s[0-9]{8}/\1/}
+SUFFIX=		${PORTVERSION:C/([0-9]+).*/\1/}
+SSP_UNSAFE=	yes
+CFLAGS:=	${CFLAGS:N-mretpoline}
+CXXFLAGS:=	${CXXFLAGS:N-mretpoline}
+
+OPTIONS_DEFINE=		BOOTSTRAP GRAPHITE PLUGINS
+OPTIONS_DEFAULT=	BOOTSTRAP PLUGINS
+BOOTSTRAP_DESC=		Build using a full bootstrap
+GRAPHITE_DESC=		Support for Graphite loop optimizations
+
+.if exists(/usr/lib32/libc.so)
+OPTIONS_DEFINE_amd64+=		MULTILIB
+OPTIONS_DEFAULT_amd64+=	MULTILIB
+OPTIONS_DEFINE_powerpc64+=	MULTILIB
+OPTIONS_DEFAULT_powerpc64+=	MULTILIB
+MULTILIB_DESC=		Build support for 32-bit and 64-bit targets
+MULTILIB_CONFIGURE_ENABLE=	multilib
+.else
+CONFIGURE_ARGS+=	--disable-multilib
+.endif
+
+PLUGINS_CONFIGURE_ENABLE=	plugin
+
+.include <bsd.port.pre.mk>
+
+.if ${ARCH} == amd64
+CONFIGURE_TARGET=	x86_64-portbld-${OPSYS:tl}${OSREL}
+
+.elif ${ARCH} == powerpc64
+CONFIGURE_ENV+=	UNAME_m="powerpc64"
+. if defined(PPC_ABI) && ${PPC_ABI} == ELFv2
+CONFIGURE_ARGS+=	--with-abi=elfv2
+. else
+USE_GCC=	yes
+. endif
+.endif
+
+LANGUAGES:=	c,c++,objc,fortran
+TARGLIB=	${PREFIX}/lib/gcc${SUFFIX}
+TARGLIB32=	${PREFIX}/lib32	# The version information is added later
+LIBEXEC=	${PREFIX}/libexec/gcc${SUFFIX}
+GNU_CONFIGURE=	yes
+CONFIGURE_OUTSOURCE=	yes
+.if empty(PORT_OPTIONS:MBOOTSTRAP)
+CONFIGURE_ARGS+=--disable-bootstrap
+.else
+CONFIGURE_ARGS+=--with-build-config=bootstrap-debug
+ALL_TARGET=	bootstrap-lean
+.endif
+INSTALL_TARGET=	install-strip
+.if ${UID} != 0
+BINMODE=	755
+.endif
+CONFIGURE_ARGS+=--disable-nls \
+		--enable-gnu-indirect-function \
+		--libdir=${TARGLIB} \
+		--libexecdir=${LIBEXEC} \
+		--program-suffix=${SUFFIX} \
+		--with-as=${LOCALBASE}/bin/as \
+		--with-gmp=${LOCALBASE} \
+		--with-gxx-include-dir=${TARGLIB}/include/c++/ \
+		--with-ld=${LOCALBASE}/bin/ld \
+		${ICONV_CONFIGURE_ARG} \
+		--with-pkgversion="FreeBSD Ports Collection" \
+		--with-system-zlib
+MAKE_ARGS+=	MAKEINFOFLAGS="--no-split"
+USE_LDCONFIG=	${TARGLIB}
+PLIST_SUB+=	GCC_VERSION=${GCC_VERSION} \
+		GNU_HOST=${CONFIGURE_TARGET} \
+		SUFFIX=${SUFFIX}
+INFO=		gcc${SUFFIX}/cpp \
+		gcc${SUFFIX}/cppinternals \
+		gcc${SUFFIX}/gcc \
+		gcc${SUFFIX}/gccinstall \
+		gcc${SUFFIX}/gccint \
+		gcc${SUFFIX}/gfortran \
+		gcc${SUFFIX}/libgomp
+.if ${ARCH} == amd64 || ${ARCH} == i386
+INFO+=		gcc${SUFFIX}/libquadmath \
+		gcc${SUFFIX}/libitm
+.endif
+SUB_FILES=	pkg-message
+SUB_LIST+=	TARGLIB=${TARGLIB}
+
+.if ${PORT_OPTIONS:MGRAPHITE}
+LIB_DEPENDS+=	libisl.so:devel/isl
+CONFIGURE_ARGS+=--with-isl=${LOCALBASE}
+.endif
+
+CONFIGURE_ARGS+=--enable-languages=${LANGUAGES}
+
+pre-everything::
+	@${ECHO_MSG} "Making GCC ${PORTVERSION} for ${CONFIGURE_TARGET} [${LANGUAGES}]"
+
+pre-configure:
+	cd ${WRKSRC} ; contrib/gcc_update --touch
+	@${RM} ${WRKSRC}/gcc/*/*.info*
+
+.if defined(MAINTAINER_MODE)
+full-regression-test: build
+	cd ${TEST_WRKSRC}; ${MAKE_CMD} -sk check \
+	; ${WRKSRC}/contrib/test_summary
+.endif
+
+post-stage:
+	${RM} ${STAGEDIR}${PREFIX}/man/man7/*
+	${RM} -r ${STAGEDIR}${TARGLIB}/gcc/*/${GCC_VERSION}/include-fixed/
+	# Add target libraries and include files to packaging list.
+	${RM} ${WRKDIR}/PLIST.lib
+
+.if (${ARCH} == amd64 || ${ARCH} == powerpc64) && ${PORT_OPTIONS:MMULTILIB}
+	${MKDIR} ${STAGEDIR}${TARGLIB32}
+	${MV} ${STAGEDIR}${PREFIX}/lib/lib32 ${STAGEDIR}${TARGLIB32}/gcc${SUFFIX}
+.endif
+
+.for d in ${TARGLIB:S/^${PREFIX}\///} ${TARGLIB32:S/^${PREFIX}\///} ${LIBEXEC:S/^${PREFIX}\///}
+	cd ${STAGEDIR}${PREFIX} ; if [ -d $d ]; then \
+	    ${FIND} $d -type f -o -type l >>${WRKDIR}/PLIST.lib ;\
+	fi
+.endfor
+	cd ${WRKDIR} ; ${SED} -i -e "/PLIST.lib/ r PLIST.lib" ${TMPPLIST}
+
+.include <bsd.port.post.mk>

lang/gcc11-devel/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1588596235
+SHA256 (gcc-11-20200503.tar.xz) = 5dcf52a4b44b73d31039b105dab50204e6bf46c2ac17498afd1bb46504a465e8
+SIZE (gcc-11-20200503.tar.xz) = 71361416

lang/gcc11-devel/files/patch-arm-unwind-cxx-support

@@ -0,0 +1,106 @@
+--- UTC
+Index: gcc/ginclude/unwind-arm-common.h
+===================================================================
+--- gcc/ginclude/unwind-arm-common.h	(revision 219113)
++++ gcc/ginclude/unwind-arm-common.h	(working copy)
+@@ -82,7 +82,11 @@
+ 
+   struct _Unwind_Control_Block
+     {
++#ifdef __FreeBSD__
++      unsigned exception_class __attribute__((__mode__(__DI__)));
++#else
+       char exception_class[8];
++#endif
+       void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block *);
+       /* Unwinder cache, private fields for the unwinder's use */
+       struct
+@@ -181,7 +185,11 @@
+ 
+   /* Support functions for the PR.  */
+ #define _Unwind_Exception _Unwind_Control_Block
++#ifdef __FreeBSD__
++  typedef unsigned _Unwind_Exception_Class __attribute__((__mode__(__DI__)));
++#else
+   typedef char _Unwind_Exception_Class[8];
++#endif
+ 
+   void * _Unwind_GetLanguageSpecificData (_Unwind_Context *);
+   _Unwind_Ptr _Unwind_GetRegionStart (_Unwind_Context *);
+Index: libstdc++-v3/libsupc++/unwind-cxx.h
+===================================================================
+--- libstdc++-v3/libsupc++/unwind-cxx.h	(revision 219147)
++++ libstdc++-v3/libsupc++/unwind-cxx.h	(working copy)
+@@ -235,7 +235,7 @@
+   return reinterpret_cast<__cxa_dependent_exception *>(exc + 1) - 1;
+ }
+ 
+-#ifdef __ARM_EABI_UNWINDER__
++#if defined(__ARM_EABI_UNWINDER__) && !defined(__FreeBSD__)
+ static inline bool
+ __is_gxx_exception_class(_Unwind_Exception_Class c)
+ {
+@@ -309,13 +309,7 @@
+   c[6] = 'R';
+   c[7] = '\0';
+ }
+-
+-static inline void*
+-__gxx_caught_object(_Unwind_Exception* eo)
+-{
+-  return (void*)eo->barrier_cache.bitpattern[0];
+-}
+-#else // !__ARM_EABI_UNWINDER__
++#else // !__ARM_EABI_UNWINDER__ || __FreeBSD__
+ // This is the primary exception class we report -- "GNUCC++\0".
+ const _Unwind_Exception_Class __gxx_primary_exception_class
+ = ((((((((_Unwind_Exception_Class) 'G' 
+@@ -339,6 +333,16 @@
+     << 8 | (_Unwind_Exception_Class) '+')
+    << 8 | (_Unwind_Exception_Class) '\x01');
+ 
++const _Unwind_Exception_Class __gxx_forced_unwind_class
++= ((((((((_Unwind_Exception_Class) 'G'
++        << 8 | (_Unwind_Exception_Class) 'N')
++       << 8 | (_Unwind_Exception_Class) 'U')
++      << 8 | (_Unwind_Exception_Class) 'C')
++     << 8 | (_Unwind_Exception_Class) 'F')
++    << 8 | (_Unwind_Exception_Class) 'O')
++   << 8 | (_Unwind_Exception_Class) 'R')
++  << 8 | (_Unwind_Exception_Class) '\0');
++
+ static inline bool
+ __is_gxx_exception_class(_Unwind_Exception_Class c)
+ {
+@@ -346,6 +350,12 @@
+       || c == __gxx_dependent_exception_class;
+ }
+ 
++static inline bool
++__is_gxx_forced_unwind_class(_Unwind_Exception_Class c)
++{
++  return c ==  __gxx_forced_unwind_class;
++}
++
+ // Only checks for primary or dependent, but not that it is a C++ exception at
+ // all.
+ static inline bool
+@@ -357,7 +367,18 @@
+ #define __GXX_INIT_PRIMARY_EXCEPTION_CLASS(c) c = __gxx_primary_exception_class
+ #define __GXX_INIT_DEPENDENT_EXCEPTION_CLASS(c) \
+   c = __gxx_dependent_exception_class
++#define __GXX_INIT_FORCED_UNWIND_CLASS(c) c = __gxx_forced_unwind_class 
++#endif // __ARM_EABI_UNWINDER__ && !__FreeBSD__
+ 
++#ifdef __ARM_EABI_UNWINDER__
++static inline void*
++__gxx_caught_object(_Unwind_Exception* eo)
++{
++    return (void*)eo->barrier_cache.bitpattern[0];
++}
++
++#else // !__ARM_EABI_UNWINDER__
++
+ // GNU C++ personality routine, Version 0.
+ extern "C" _Unwind_Reason_Code __gxx_personality_v0
+      (int, _Unwind_Action, _Unwind_Exception_Class,

lang/gcc11-devel/files/patch-gets-no-more

@@ -0,0 +1,47 @@
+Disable the build/use of libssp/gets-chk since FreeBSD 12 and later
+do not feature gets() any longer.
+
+--- UTC
+Index: libssp/Makefile.am
+===================================================================
+--- libssp/Makefile.am	(revision 263319)
++++ libssp/Makefile.am	(working copy)
+@@ -42,7 +42,7 @@
+ nobase_libsubinclude_HEADERS = ssp/ssp.h ssp/string.h ssp/stdio.h ssp/unistd.h
+ 
+ libssp_la_SOURCES = \
+-	ssp.c gets-chk.c memcpy-chk.c memmove-chk.c mempcpy-chk.c \
++	ssp.c memcpy-chk.c memmove-chk.c mempcpy-chk.c \
+ 	memset-chk.c snprintf-chk.c sprintf-chk.c stpcpy-chk.c \
+ 	strcat-chk.c strcpy-chk.c strncat-chk.c strncpy-chk.c \
+ 	vsnprintf-chk.c vsprintf-chk.c
+Index: libssp/Makefile.in
+===================================================================
+--- libssp/Makefile.in	(revision 263319)
++++ libssp/Makefile.in	(working copy)
+@@ -108,7 +108,7 @@
+ am__installdirs = "$(DESTDIR)$(toolexeclibdir)" \
+ 	"$(DESTDIR)$(libsubincludedir)"
+ LTLIBRARIES = $(toolexeclib_LTLIBRARIES)
+-am_libssp_la_OBJECTS = ssp.lo gets-chk.lo memcpy-chk.lo memmove-chk.lo \
++am_libssp_la_OBJECTS = ssp.lo memcpy-chk.lo memmove-chk.lo \
+ 	mempcpy-chk.lo memset-chk.lo snprintf-chk.lo sprintf-chk.lo \
+ 	stpcpy-chk.lo strcat-chk.lo strcpy-chk.lo strncat-chk.lo \
+ 	strncpy-chk.lo vsnprintf-chk.lo vsprintf-chk.lo
+@@ -291,7 +291,7 @@
+ libsubincludedir = $(libdir)/gcc/$(target_noncanonical)/$(gcc_version)/include
+ nobase_libsubinclude_HEADERS = ssp/ssp.h ssp/string.h ssp/stdio.h ssp/unistd.h
+ libssp_la_SOURCES = \
+-	ssp.c gets-chk.c memcpy-chk.c memmove-chk.c mempcpy-chk.c \
++	ssp.c memcpy-chk.c memmove-chk.c mempcpy-chk.c \
+ 	memset-chk.c snprintf-chk.c sprintf-chk.c stpcpy-chk.c \
+ 	strcat-chk.c strcpy-chk.c strncat-chk.c strncpy-chk.c \
+ 	vsnprintf-chk.c vsprintf-chk.c
+@@ -452,7 +452,6 @@
+ distclean-compile:
+ 	-rm -f *.tab.c
+ 
+-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gets-chk.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/libssp_nonshared_la-ssp-local.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/memcpy-chk.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/memmove-chk.Plo@am__quote@

lang/gcc11-devel/files/patch-gfortran-libgcc

@@ -0,0 +1,70 @@
+GCC has two runtime libraries:  The static library libgcc.a (-lgcc) and
+the shared library libgcc_s.so (-lgcc_s).  Both implement many of the
+same functions but they also each have their unique functions.  When
+gcc links programs and libraries there are three possibilities:
+
+1. gcc -static-libgcc or gcc -static: -lgcc
+   => Just use libgcc.a.
+
+2. gcc -shared-libgcc: -lgcc_s -lgcc
+   => Link with libgcc_s first, so libgcc.a is only used for its unique
+      functions.
+
+3. gcc: -lgcc -Wl,--as-needed -lgcc_s -Wl,--no-as-needed
+   => Link with libgcc.a first so libgcc_s is only used for its unique
+      functions (_Unwind_* functions).
+
+Approach 3 is the default for gcc and it's also what clang and clang++ use;
+approach 2 is the default for gfortran, g++ and probably other front ends.
+
+This patch makes 3 the default for gfortran.  It significantly reduces
+the use of libgcc_s.  The _Unwind_* functions are also available in the
+old base system libgcc_s which means this reduces the need for
+-rpath /usr/local/lib/gccN in ports that depend on libraries built with
+gfortran.  Consider a dependency tree like this:
+
+  prog -> libA -> libgcc_s (old base system libgcc_s is fine)
+       -> libB -> libgcc_s (libB built with gfortran, needs new libgcc_s)
+
+Here prog needs to be linked with -rpath /usr/local/lib/gccN even if it's
+a normal C program compiled with clang.  Without -rpath it will fail to
+start because it loads old libgcc_s first as a dependency of libA and then
+it fails to load libB.  With this patch libB works with old base system
+libgcc_s or may not need libgcc_s at all, so prog does not need to be
+linked with -rpath.
+
+Upstream is unlikely accept a patch like this because libgfortran calls
+some _Unwind_* functions and so always needs libgcc_s.  Also because
+every Fortran program and library links to libgfortran it makes sense
+that option 2 above is the default.  On FreeBSD where clang and GCC
+compiled code can be mixed and where multiple libgcc_s may be installed,
+option 3 is just a lot easier to deal with.
+
+The bug that sparked this is PR 208120 (but note there's a lot of
+misleading information in that bug.  CMake is not actually doing
+anything wrong.)
+
+--- UTC
+--- gcc/fortran/gfortranspec.c.orig	2015-06-26 17:47:23 UTC
++++ gcc/fortran/gfortranspec.c
+@@ -404,7 +404,7 @@ For more information about these matters
+ 	}
+     }
+ 
+-#ifdef ENABLE_SHARED_LIBGCC
++#if 0
+   if (library)
+     {
+       unsigned int i;
+
+--- libgfortran/Makefile.in.orig	2019-02-22 14:22:13.000000000 +0000
++++ libgfortran/Makefile.in	2019-02-27 16:27:08.856408000 +0000
+@@ -625,7 +625,7 @@
+ 	$(LTLDFLAGS) $(LIBQUADLIB) ../libbacktrace/libbacktrace.la \
+ 	$(HWCAP_LDFLAGS) \
+ 	-lm $(extra_ldflags_libgfortran) \
+-	$(version_arg) -Wc,-shared-libgcc
++	$(version_arg)
+ 
+ libgfortran_la_DEPENDENCIES = $(version_dep) libgfortran.spec $(LIBQUADLIB_DEP)
+ cafexeclib_LTLIBRARIES = libcaf_single.la

lang/gcc11-devel/files/pkg-message.in

@@ -0,0 +1,13 @@
+[
+{ type: install
+  message: <<EOD
+To ensure binaries built with this toolchain find appropriate versions
+of the necessary run-time libraries, you may want to link using
+
+  -Wl,-rpath=%%TARGLIB%%
+
+For ports leveraging USE_GCC, USES=compiler, or USES=fortran this happens
+transparently.
+EOD
+}
+]

lang/gcc11-devel/pkg-descr

@@ -0,0 +1,7 @@
+GCC, the GNU Compiler Collection, supports a number of languages.
+This port installs the C, C++, and Fortran front ends as gcc11, g++11,
+and gfortran11, respectively.
+
+WWW: https://gcc.gnu.org
+
+Gerald Pfeifer <gerald@FreeBSD.org>

lang/gcc11-devel/pkg-plist

@@ -0,0 +1,35 @@
+bin/%%GNU_HOST%%-c++%%SUFFIX%%
+bin/%%GNU_HOST%%-g++%%SUFFIX%%
+bin/%%GNU_HOST%%-gcc%%SUFFIX%%
+bin/%%GNU_HOST%%-gcc-%%GCC_VERSION%%
+bin/%%GNU_HOST%%-gcc-ar%%SUFFIX%%
+bin/%%GNU_HOST%%-gcc-nm%%SUFFIX%%
+bin/%%GNU_HOST%%-gcc-ranlib%%SUFFIX%%
+bin/%%GNU_HOST%%-gfortran%%SUFFIX%%
+bin/c++%%SUFFIX%%
+bin/cpp%%SUFFIX%%
+bin/g++%%SUFFIX%%
+bin/gcc%%SUFFIX%%
+bin/gcc-ar%%SUFFIX%%
+bin/gcc-nm%%SUFFIX%%
+bin/gcc-ranlib%%SUFFIX%%
+bin/gcov%%SUFFIX%%
+bin/gcov-dump%%SUFFIX%%
+bin/gcov-tool%%SUFFIX%%
+bin/gfortran%%SUFFIX%%
+bin/lto-dump%%SUFFIX%%
+man/man1/cpp%%SUFFIX%%.1.gz
+man/man1/g++%%SUFFIX%%.1.gz
+man/man1/gcc%%SUFFIX%%.1.gz
+man/man1/gcov%%SUFFIX%%.1.gz
+man/man1/gcov-dump%%SUFFIX%%.1.gz
+man/man1/gcov-tool%%SUFFIX%%.1.gz
+man/man1/gfortran%%SUFFIX%%.1.gz
+man/man1/lto-dump%%SUFFIX%%.1.gz
+share/gcc-%%GCC_VERSION%%/python/libstdcxx/__init__.py
+share/gcc-%%GCC_VERSION%%/python/libstdcxx/v6/__init__.py
+share/gcc-%%GCC_VERSION%%/python/libstdcxx/v6/printers.py
+share/gcc-%%GCC_VERSION%%/python/libstdcxx/v6/xmethods.py
+@postexec if type ccache-update-links >/dev/null 2>&1; then ccache-update-links -v; fi
+@postunexec if type ccache-update-links >/dev/null 2>&1; then ccache-update-links -v; fi
+@comment Insert PLIST.lib here