Date: Sun, 12 Jun 2016 17:43:43 -0700 From: Mark Millard <markmi@dsl-only.net> To: freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Toolchain <freebsd-toolchain@freebsd.org>, FreeBSD Ports <freebsd-ports@freebsd.org>, gerald@FreeBSD.org Subject: Re: lang/gcc6 (as of /usr/ports -r416711) does not build on 11.0 -r301815 on an rpi2 [armv7-a, cortex-a7]: a.out uses VFP register arguments, . . . does not Message-ID: <497B54A1-A306-4264-AC8C-A57A7A53931E@dsl-only.net> In-Reply-To: <A35407A3-2A63-4B9C-AE2B-776159CC550A@dsl-only.net>
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Just a quick top-posted note: lang/gcc5 (as of /usr/ports -r416711) built fine, unlike the lang/gcc6 noted before/below. [I happened to try lang/gcc5 with the bootstrap configuration item disabled.] I may try lang/gcc6-devel to see what it does. === Mark Millard markmi at dsl-only.net On 2016-Jun-12, at 3:02 PM, Mark Millard <markmi at dsl-only.net> wrote: > On an rpi2: > >> # uname -apKU >> FreeBSD rpi2 11.0-ALPHA3 FreeBSD 11.0-ALPHA3 #0 r301815M: Sat Jun 11 23:43:48 PDT 2016 markmi@FreeBSDx64:/usr/obj/clang/arm.armv6/usr/src/sys/RPI2-NODBG ar >> m armv6 1100116 1100116 > > > with /usr/ports at -r416711. . . > > > For attempting to build lang/gcc6 with the bootstrap configuration item enabled: > >> configure:3735: /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/xgcc -B/usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/ -B/usr/local/armv6-por >> tbld-freebsd11.0/bin/ -B/usr/local/armv6-portbld-freebsd11.0/lib/ -isystem /usr/local/armv6-portbld-freebsd11.0/include -isystem /usr/local/armv6-portbld-freebs >> d11.0/sys-include -O2 -pipe -mcpu=cortex-a7 -DLIBICONV_PLUG -g -fno-strict-aliasing conftest.c >&5 >> /usr/local/bin/ld: error: a.out uses VFP register arguments, /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtbegin.o does not >> /usr/local/bin/ld: failed to merge target specific data of file /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtbegin.o >> /usr/local/bin/ld: error: a.out uses VFP register arguments, /tmp/ccC38Tl3.o does not >> /usr/local/bin/ld: failed to merge target specific data of file /tmp/ccC38Tl3.o >> /usr/local/bin/ld: error: a.out uses VFP register arguments, /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtend.o does not >> /usr/local/bin/ld: failed to merge target specific data of file /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtend.o >> collect2: error: ld returned 1 exit status >> configure:3739: $? = 1 >> configure:3776: result: >> configure: failed program was: >> | /* confdefs.h */ >> | #define PACKAGE_NAME "GNU Offloading and Multi Processing Runtime Library" >> | #define PACKAGE_TARNAME "libgomp" >> | #define PACKAGE_VERSION "1.0" >> | #define PACKAGE_STRING "GNU Offloading and Multi Processing Runtime Library 1.0" >> | #define PACKAGE_BUGREPORT "" >> | #define PACKAGE_URL "http://www.gnu.org/software/libgomp/" >> | #define PACKAGE "libgomp" >> | #define VERSION "1.0" >> | /* end confdefs.h. */ >> | >> | int >> | main () >> | { >> | >> | ; >> | return 0; >> | } >> configure:3782: error: in `/usr/obj/portswork/usr/ports/lang/gcc6/work/.build/armv6-portbld-freebsd11.0/libgomp': >> configure:3786: error: C compiler cannot create executables > > > > For attempting to build lang/gcc6 with the bootstrap configuraiton item disabled similar ld reports are generated: > >> /usr/local/bin/ld: error: a.out uses VFP register arguments, /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtbegin.o does not >> /usr/local/bin/ld: failed to merge target specific data of file /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtbegin.o >> /usr/local/bin/ld: error: a.out uses VFP register arguments, /tmp/cco9nucg.o does not >> /usr/local/bin/ld: failed to merge target specific data of file /tmp/cco9nucg.o >> /usr/local/bin/ld: error: a.out uses VFP register arguments, /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtend.o does not >> /usr/local/bin/ld: failed to merge target specific data of file /usr/obj/portswork/usr/ports/lang/gcc6/work/.build/./gcc/crtend.o >> collect2: error: ld returned 1 exit status >> configure:3003: $? = 1 >> configure:3040: result: >> configure: failed program was: >> | /* confdefs.h */ >> | #define PACKAGE_NAME "package-unused" >> | #define PACKAGE_TARNAME "libbacktrace" >> | #define PACKAGE_VERSION "version-unused" >> | #define PACKAGE_STRING "package-unused version-unused" >> | #define PACKAGE_BUGREPORT "" >> | #define PACKAGE_URL "" >> | /* end confdefs.h. */ >> | >> | int >> | main () >> | { >> | >> | ; >> | return 0; >> | } >> configure:3046: error: in `/usr/obj/portswork/usr/ports/lang/gcc6/work/.build/armv6-portbld-freebsd11.0/libbacktrace': >> configure:3050: error: C compiler cannot create executables > > > Context details. . . > > As for the in-use make.conf (not the one used for the system build): > >> # more /etc/make.conf >> DEFAULT_VERSIONS+=perl5=5.22 >> WRKDIRPREFIX=/usr/obj/portswork >> WITH_DEBUG= >> WITH_DEBUG_FILES= >> MALLOC_PRODUCTION= >> # >> #system clang 3.8 (gcc6 rejects -march=armv7a): >> #CFLAGS+= -march=armv7-a -mcpu=cortex-a7 >> #CXXFLAGS+= -march=armv7-a -mcpu=cortex-a7 >> #CPPFLAGS+= -march=armv7-a -mcpu=cortex-a7 >> # >> #lang/gcc6's xgcc stage considers the above conflicting so use just: >> CFLAGS+= -mcpu=cortex-a7 >> CXXFLAGS+= -mcpu=cortex-a7 >> CPPFLAGS+= -mcpu=cortex-a7 > > > The armv6 11.0 -r301815 system was cross built from amd64, built using src.conf: > >> # more ~/src.configs/src.conf.rpi2-clang-bootstrap.amd64-host >> TO_TYPE=armv6 >> # >> KERNCONF=RPI2-NODBG >> TARGET=arm >> .if ${.MAKE.LEVEL} == 0 >> TARGET_ARCH=${TO_TYPE} >> .export TARGET_ARCH >> .endif >> # >> WITH_CROSS_COMPILER= >> WITHOUT_SYSTEM_COMPILER= >> # >> #CPUTYPE=soft >> WITH_LIBSOFT= >> WITH_LIBCPLUSPLUS= >> WITH_BINUTILS_BOOTSTRAP= >> WITH_CLANG_BOOTSTRAP= >> WITH_CLANG= >> WITH_CLANG_IS_CC= >> WITH_CLANG_FULL= >> WITH_CLANG_EXTRAS= >> WITH_LLDB= >> # >> WITH_BOOT= >> WITHOUT_LIB32= >> # >> WITHOUT_ELFTOOLCHAIN_BOOTSTRAP= >> WITHOUT_GCC_BOOTSTRAP= >> WITHOUT_GCC= >> WITHOUT_GCC_IS_CC= >> WITHOUT_GNUCXX= >> # >> NO_WERROR= >> #WERROR= >> MALLOC_PRODUCTION= >> # >> WITH_DEBUG_FILES= >> # >> XCFLAGS+= -march=armv7-a -mcpu=cortex-a7 >> XCXXFLAGS+= -march=armv7-a -mcpu=cortex-a7 >> # There is no XCPPFLAGS but XCPP ets XCFLAGS content. > > and with the make.conf for the system build being empty: > >> # more ~/src.configs/make.conf >> # > > > === > Mark Millard > markmi at dsl-only.nethelp
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