Date: Sun, 16 Apr 2017 02:03:45 -0700 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Cc: FreeBSD Current <freebsd-current@freebsd.org>, FreeBSD Ports <freebsd-ports@freebsd.org> Subject: Re: FYI: amd64 built with WITH_LLD_IS_LD= vs. devel/libunwind : cannot preempt symbol (for various symbols) Message-ID: <66C3DDE1-D9DB-4FCD-9743-0A547FE14358@dsl-only.net> In-Reply-To: <37CB2849-A509-4C1D-AB93-A1FBFF70E959@dsl-only.net> References: <37CB2849-A509-4C1D-AB93-A1FBFF70E959@dsl-only.net>
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On 2017-Apr-16, at 1:10 AM, Mark Millard <markmi at dsl-only.net> wrote:
> Context: amd64 FreeBSD -r316952 as a VirtualBox guest
> that was built using WITH_LLD_IS_LD=3D . ports -r438577.
>=20
> x11/xorg-minimal indirectly gets to devel/libunwind and
> devel/libunwind fails to build from source:
>=20
>=20
> --- Lperf-simple ---
> libtool: link: cc -O2 -pipe -g -fstack-protector -fno-strict-aliasing =
-fexceptions -Wall -Wsign-compare -fstack-protector -o =
.libs/Lperf-simple Lperf-simple.o ../src/.libs/libunwind.so -lgcc =
-llzma -Wl,-rpath -Wl,/usr/local/lib
> /usr/bin/ld: error: ./Gperf-simple.c:195: cannot preempt symbol =
'_ULx86_64_init_local' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:219: cannot preempt symbol =
'_ULx86_64_init_local' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:252: cannot preempt symbol =
'_ULx86_64_local_addr_space' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:252: cannot preempt symbol =
'_ULx86_64_set_caching_policy' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:255: cannot preempt symbol =
'_ULx86_64_local_addr_space' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:255: cannot preempt symbol =
'_ULx86_64_set_caching_policy' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:258: cannot preempt symbol =
'_ULx86_64_local_addr_space' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:258: cannot preempt symbol =
'_ULx86_64_set_caching_policy' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:66: cannot preempt symbol =
'_ULx86_64_init_local' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-simple.c:73: cannot preempt symbol =
'_ULx86_64_step' defined in ../src/.libs/libunwind.so
> cc: error: linker command failed with exit code 1 (use -v to see =
invocation)
> *** [Lperf-simple] Error code 1
>=20
> make[2]: stopped in =
/usr/obj/portswork/usr/ports/devel/libunwind/work/libunwind-1.1/tests
> --- Lperf-trace ---
> libtool: link: cc -O2 -pipe -g -fstack-protector -fno-strict-aliasing =
-fexceptions -Wall -Wsign-compare -fstack-protector -o .libs/Lperf-trace =
Lperf-trace.o ../src/.libs/libunwind.so -lgcc -llzma -Wl,-rpath =
-Wl,/usr/local/lib
> --- Gperf-simple ---
> libtool: link: cc -O2 -pipe -g -fstack-protector -fno-strict-aliasing =
-fexceptions -Wall -Wsign-compare -fstack-protector -o =
.libs/Gperf-simple Gperf-simple.o ../src/.libs/libunwind-x86_64.so =
/usr/obj/portswork/usr/ports/devel/libunwind/work/libunwind-1.1/src/.libs/=
libunwind.so ../src/.libs/libunwind.so -lgcc -llzma -Wl,-rpath =
-Wl,/usr/local/lib
> --- Lperf-trace ---
> /usr/bin/ld: error: ./Gperf-trace.c:181: cannot preempt symbol =
'_ULx86_64_init_local' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-trace.c:205: cannot preempt symbol =
'_ULx86_64_init_local' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-trace.c:238: cannot preempt symbol =
'_ULx86_64_local_addr_space' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-trace.c:238: cannot preempt symbol =
'_ULx86_64_set_caching_policy' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-trace.c:241: cannot preempt symbol =
'_ULx86_64_local_addr_space' defined in ../src/.libs/libunwind.so
> --- Gperf-trace ---
> libtool: link: cc -O2 -pipe -g -fstack-protector -fno-strict-aliasing =
-fexceptions -Wall -Wsign-compare -fstack-protector -o .libs/Gperf-trace =
Gperf-trace.o ../src/.libs/libunwind-x86_64.so =
/usr/obj/portswork/usr/ports/devel/libunwind/work/libunwind-1.1/src/.libs/=
libunwind.so ../src/.libs/libunwind.so -lgcc -llzma -Wl,-rpath =
-Wl,/usr/local/lib
> --- Lperf-trace ---
> /usr/bin/ld: error: ./Gperf-trace.c:241: cannot preempt symbol =
'_ULx86_64_set_caching_policy' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-trace.c:244: cannot preempt symbol =
'_ULx86_64_local_addr_space' defined in ../src/.libs/libunwind.so
> /usr/bin/ld: error: ./Gperf-trace.c:244: cannot preempt symbol =
'_ULx86_64_set_caching_policy' defined in ../src/.libs/libunwind.so
> cc: error: linker command failed with exit code 1 (use -v to see =
invocation)
> *** [Lperf-trace] Error code 1
>=20
> make[2]: stopped in =
/usr/obj/portswork/usr/ports/devel/libunwind/work/libunwind-1.1/tests
> --- Gperf-simple ---
> /usr/bin/ld: error: Gperf-simple.c:195: cannot preempt symbol =
'_Ux86_64_init_local' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:219: cannot preempt symbol =
'_Ux86_64_init_local' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:252: cannot preempt symbol =
'_Ux86_64_local_addr_space' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:252: cannot preempt symbol =
'_Ux86_64_set_caching_policy' defined in =
../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:255: cannot preempt symbol =
'_Ux86_64_local_addr_space' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:255: cannot preempt symbol =
'_Ux86_64_set_caching_policy' defined in =
../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:258: cannot preempt symbol =
'_Ux86_64_local_addr_space' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:258: cannot preempt symbol =
'_Ux86_64_set_caching_policy' defined in =
../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:66: cannot preempt symbol =
'_Ux86_64_init_local' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-simple.c:73: cannot preempt symbol =
'_Ux86_64_step' defined in ../src/.libs/libunwind-x86_64.so
> --- Gperf-trace ---
> /usr/bin/ld: error: Gperf-trace.c:181: cannot preempt symbol =
'_Ux86_64_init_local' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:205: cannot preempt symbol =
'_Ux86_64_init_local' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:238: cannot preempt symbol =
'_Ux86_64_local_addr_space' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:238: cannot preempt symbol =
'_Ux86_64_set_caching_policy' defined in =
../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:241: cannot preempt symbol =
'_Ux86_64_local_addr_space' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:241: cannot preempt symbol =
'_Ux86_64_set_caching_policy' defined in =
../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:244: cannot preempt symbol =
'_Ux86_64_local_addr_space' defined in ../src/.libs/libunwind-x86_64.so
> /usr/bin/ld: error: Gperf-trace.c:244: cannot preempt symbol =
'_Ux86_64_set_caching_policy' defined in =
../src/.libs/libunwind-x86_64.so
> --- Gperf-simple ---
> cc: error: linker command failed with exit code 1 (use -v to see =
invocation)
> --- Gperf-trace ---
> cc: error: linker command failed with exit code 1 (use -v to see =
invocation)
> --- Gperf-simple ---
> *** [Gperf-simple] Error code 1
>=20
> make[2]: stopped in =
/usr/obj/portswork/usr/ports/devel/libunwind/work/libunwind-1.1/tests
> --- Gperf-trace ---
> *** [Gperf-trace] Error code 1
>=20
>=20
> I do have:
>=20
> # svnlite diff /usr/ports/Mk
> Index: /usr/ports/Mk/bsd.port.mk
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- /usr/ports/Mk/bsd.port.mk (revision 436747)
> +++ /usr/ports/Mk/bsd.port.mk (working copy)
> @@ -1646,7 +1646,11 @@
> STRIP_CMD=3D ${TRUE}
> .endif
> DEBUG_FLAGS?=3D -g
> +.if defined(ALLOW_OPTIMIZATIONS_FOR_WITH_DEBUG)
> +CFLAGS:=3D ${CFLAGS} ${DEBUG_FLAGS}
> +.else
> CFLAGS:=3D ${CFLAGS:N-O*:N-fno-strict*} ${DEBUG_FLAGS}
> +.endif
> .if defined(INSTALL_TARGET)
> INSTALL_TARGET:=3D ${INSTALL_TARGET:S/^install-strip$/install/g}
> .endif
>=20
> and use ALLOW_OPTIMIZATIONS_FOR_WITH_DEBUG=3D and WITH_DEBUG=3D :
>=20
> # more /etc/make.conf=20
> WANT_QT_VERBOSE_CONFIGURE=3D1
> #
> DEFAULT_VERSIONS+=3Dperl5=3D5.24
> WRKDIRPREFIX=3D/usr/obj/portswork
> #
> # =46rom a local /usr/ports/Mk/bsd.port.mk extension:
> ALLOW_OPTIMIZATIONS_FOR_WITH_DEBUG=3D
> #
> .if ${.CURDIR:M*/devel/*llvm*}
> #WITH_DEBUG=3D
> .elif ${.CURDIR:M*/www/webkit-qt5*}
> #WITH_DEBUG=3D
> .else
> WITH_DEBUG=3D
> .endif
> WITH_DEBUG_FILES=3D
> MALLOC_PRODUCTION=3D
I reverted my amd64 FreeBSD context to be based on
WITHOUT_LLD_IS_LD=3D and tried the above again.
devel/libunwind did not have the problem when
the system's ld was from the system binutils.
=3D=3D=3D
Mark Millard
markmi at dsl-only.net
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