Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 19 May 2019 18:11:42 -0700
From:      Mark Millard <marklmi@yahoo.com>
To:        Dimitry Andric <dim@FreeBSD.org>
Cc:        FreeBSD Toolchain <freebsd-toolchain@freebsd.org>, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>
Subject:   Re: FYI: Unable to build -r501994 ports' devel/llvm60 on clang 8 based powerpc64 system: "BFD (GNU Binutils) 2.32 assertion fail elflink.c:2935"
Message-ID:  <21426EE8-7B54-4FFC-AEC7-898BD3185413@yahoo.com>
In-Reply-To: <F31CDFCD-64B3-41E6-B33C-015F28FA98D6@FreeBSD.org>
References:  <0743B28F-3F61-401F-BD61-B69C4B207559@yahoo.com> <F31CDFCD-64B3-41E6-B33C-015F28FA98D6@FreeBSD.org>

next in thread | previous in thread | raw e-mail | index | archive | help


On 2019-May-19, at 11:06, Dimitry Andric <dim at FreeBSD.org> wrote:

> On 19 May 2019, at 16:56, Mark Millard via freebsd-toolchain =
<freebsd-toolchain at freebsd.org> wrote:
>> This was in a poudriere bulk build on a head -r347549 based powerpc64
>> system with system clang 8 for cc and c++ and base/binutils
>> for the likes of ld. (The system has the llvm libunwind patches
>> for powerpc64 so throwing c++ exceptions work.)
>>=20
>> [4397/4552] : && /usr/bin/c++ -fPIC -O2 -pipe -DNDEBUG =
-fstack-protector-strong -isystem /usr/local/include =
-fno-strict-aliasing  -DNDEBUG -isystem /usr/local/include -fPIC =
-fvisibility-inlines-hidden -Werror=3Ddate-time =
-Werror=3Dunguarded-availability-new -std=3Dc++11 -Wall -W =
-Wno-unused-parameter -Wwrite-strings -Wcast-qual =
-Wmissing-field-initializers -pedantic -Wno-long-long =
-Wcovered-switch-default -Wnon-virtual-dtor -Wdelete-non-virtual-dtor =
-Wstring-conversion -fcolor-diagnostics -ffunction-sections =
-fdata-sections -O2 -pipe -DNDEBUG -fstack-protector-strong -isystem =
/usr/local/include -fno-strict-aliasing  -DNDEBUG -isystem =
/usr/local/include  -fstack-protector-strong   -Wl,-z,origin  -Wl,-O3 =
-Wl,--gc-sections  =
-Wl,--version-script,/wrkdirs/usr/ports/devel/llvm60/work/.build/tools/lto=
/LTO.exports -shared -Wl,-soname,libLTO.so.6 -o lib/libLTO.so.6.0.1 =
tools/lto/CMakeFiles/LTO.dir/LTODisassembler.cpp.o =
tools/lto/CMakeFiles/LTO.dir/lto.cpp.o -L/usr/local/lib =
-Wl,-rpath,"\$ORIGIN/../
>> lib:/usr/local/lib" lib/libLLVM-6.0.so && :
>> FAILED: lib/libLTO.so.6.0.1
>> : && /usr/bin/c++ -fPIC -O2 -pipe -DNDEBUG -fstack-protector-strong =
-isystem /usr/local/include -fno-strict-aliasing  -DNDEBUG -isystem =
/usr/local/include -fPIC -fvisibility-inlines-hidden -Werror=3Ddate-time =
-Werror=3Dunguarded-availability-new -std=3Dc++11 -Wall -W =
-Wno-unused-parameter -Wwrite-strings -Wcast-qual =
-Wmissing-field-initializers -pedantic -Wno-long-long =
-Wcovered-switch-default -Wnon-virtual-dtor -Wdelete-non-virtual-dtor =
-Wstring-conversion -fcolor-diagnostics -ffunction-sections =
-fdata-sections -O2 -pipe -DNDEBUG -fstack-protector-strong -isystem =
/usr/local/include -fno-strict-aliasing  -DNDEBUG -isystem =
/usr/local/include  -fstack-protector-strong   -Wl,-z,origin  -Wl,-O3 =
-Wl,--gc-sections  =
-Wl,--version-script,/wrkdirs/usr/ports/devel/llvm60/work/.build/tools/lto=
/LTO.exports -shared -Wl,-soname,libLTO.so.6 -o lib/libLTO.so.6.0.1 =
tools/lto/CMakeFiles/LTO.dir/LTODisassembler.cpp.o =
tools/lto/CMakeFiles/LTO.dir/lto.cpp.o -L/usr/local/lib =
-Wl,-rpath,"\$ORIGIN/../lib:/usr/loc
>> al/lib" lib/libLLVM-6.0.so && :
>> /usr/bin/powerpc64-unknown-freebsd13.0-ld: BFD (GNU Binutils) 2.32 =
assertion fail elflink.c:2935
>> /usr/bin/powerpc64-unknown-freebsd13.0-ld: BFD (GNU Binutils) 2.32 =
assertion fail elflink.c:2935
>=20
> See <https://bugs.freebsd.org/237068>.  I think this is a BFD ld bug,
> but I still haven't been able to come up with a small test case.  Any
> help appreciated. :-)

(Also noted in bugzilla comment #13:)

The following 2 link commands, producing and
using an vastly-smaller lib/libLLVM-6.0.so
reproduce the messages:

"/usr/bin/powerpc64-unknown-freebsd13.0-ld" \
"-Bshareable" \
"-o" "lib/libLLVM-6.0.so" \
"/usr/lib/crtbeginS.o" \
"--version-script" =
"/wrkdirs/usr/ports/devel/llvm60/work/.build/./lib/tools/llvm-shlib/simple=
_version_script.map" \
"--whole-archive" \
"lib/libLLVMCore.a" \
"--no-whole-archive" \
"-lm"

/usr/bin/powerpc64-unknown-freebsd13.0-ld \
"-Bshareable" \
"-o" "lib/libLTO.so.6.0.1" \
"lib/libLLVM-6.0.so"

It looks like lib/libLLVMCore.a would be next for
making it smaller.


=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?21426EE8-7B54-4FFC-AEC7-898BD3185413>