https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93384
Bug ID: 93384
Summary: Python 3.9.0a3 fails to build on ppc64le with GCC
10.0.1: redefined symbol cannot be used on reloc
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: vstinner at redhat dot com
Target Milestone: ---
Hi,
We are working on upgrading Python 3.8 to 3.9 in Fedora Rawhide. Two builds
ago, the build was fine on the 3 archs (x86-64, aarch64, ppc64), but when GCC
has been upgraded from GCC 9.2.1 to GCC 10.0.1, we started the get the
following error on ppc64le (and only on this arch, the two others are building
successfully):
/tmp/cc7LZ1xH.s: Assembler messages:
/tmp/cc7LZ1xH.s:91549: Error: redefined symbol cannot be used on reloc
/tmp/cc7LZ1xH.s:275099: Error: redefined symbol cannot be used on reloc
lto-wrapper: fatal error: gcc returned 1 exit status
compilation terminated.
/usr/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
Full build logs:
https://kojipkgs.fedoraproject.org//work/tasks/606/40790606/build.log
We build Python using LTO and PGO.
The first step of PGO (-fprofile-generate) went fine, but the second step
(-fprofile-use) is the one which failed.
GCC error message is unclear :-( I'm not sure if the error comes from the build
of a single .c file, or on the linking command creating libpython3.9.so from
all .o files.
A Python .c file is built with a command like (that's the second PGO step,
using -fprofile-use -fprofile-correction):
---
gcc
-pthread
-c
-Wno-unused-result
-Wsign-compare
-DDYNAMIC_ANNOTATIONS_ENABLED=1
-DNDEBUG
-O2
-g
-pipe
-Wall
-Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS
-fexceptions
-fstack-protector-strong
-grecord-gcc-switches
-m64
-mcpu=power8
-mtune=power8
-fasynchronous-unwind-tables
-fstack-clash-protection
-D_GNU_SOURCE
-fPIC
-fwrapv
-O2
-g
-pipe
-Wall
-Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS
-fexceptions
-fstack-protector-strong
-grecord-gcc-switches
-m64
-mcpu=power8
-mtune=power8
-fasynchronous-unwind-tables
-fstack-clash-protection
-D_GNU_SOURCE
-fPIC
-fwrapv
-O2
-g
-pipe
-Wall
-Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS
-fexceptions
-fstack-protector-strong
-grecord-gcc-switches
-m64
-mcpu=power8
-mtune=power8
-fasynchronous-unwind-tables
-fstack-clash-protection
-D_GNU_SOURCE
-fPIC
-fwrapv
-O2
-g
-pipe
-Wall
-Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS
-fexceptions
-fstack-protector-strong
-grecord-gcc-switches
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1
-m64
-mcpu=power8
-mtune=power8
-fasynchronous-unwind-tables
-fstack-clash-protection
-D_GNU_SOURCE
-fPIC
-fwrapv
-fno-semantic-interposition
-flto
-fuse-linker-plugin
-ffat-lto-objects
-flto-partition=none
-g
-std=c99
-Wextra
-Wno-unused-result
-Wno-unused-parameter
-Wno-missing-field-initializers
-Werror=implicit-function-declaration
-fvisibility=hidden
-O2
-g
-pipe
-Wall
-Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2
-Wp,-D_GLIBCXX_ASSERTIONS
-fexceptions
-fstack-protector-strong
-grecord-gcc-switches
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1
-m64
-mcpu=power8
-mtune=power8
-fasynchronous-unwind-tables
-fstack-clash-protection
-D_GNU_SOURCE
-fPIC
-fwrapv
-fno-semantic-interposition
-fprofile-use
-fprofile-correction
-I/builddir/build/BUILD/Python-3.9.0a2/Include/internal
-IObjects
-IInclude
-IPython
-I.
-I/builddir/build/BUILD/Python-3.9.0a2/Include
-fPIC
-DPy_BUILD_CORE
-o Python/Python-ast.o
/builddir/build/BUILD/Python-3.9.0a2/Python/Python-ast.c
---
Link libpython3.9.so:
---
gcc
-pthread
-shared
-Wl,-z,relro
-Wl,--as-needed
-Wl,-z,now
-g
-Wl,-z,relro
-Wl,--as-needed
-Wl,-z,now
-g
-Wl,-z,relro
-Wl,--as-needed
-Wl,-z,now
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld
-fno-semantic-interposition
-g
-flto
-fuse-linker-plugin
-ffat-lto-objects
-flto-partition=none
-g
-Wl,-z,relro
-Wl,--as-needed
-Wl,-z,now
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld
-fno-semantic-interposition
-g
-o libpython3.9.so
-lcrypt
-lpthread
-ldl
-lutil
-lm
-lm
Modules/getbuildinfo.o
Parser/acceler.o
Parser/grammar1.o
Parser/listnode.o
Parser/node.o
Parser/parser.o
Parser/token.o
Parser/myreadline.o
Parser/parsetok.o
Parser/tokenizer.o
Objects/abstract.o
Objects/accu.o
Objects/boolobject.o
Objects/bytes_methods.o
Objects/bytearrayobject.o
Objects/bytesobject.o
Objects/call.o
Objects/capsule.o
Objects/cellobject.o
Objects/classobject.o
Objects/codeobject.o
Objects/complexobject.o
Objects/descrobject.o
Objects/enumobject.o
Objects/exceptions.o
Objects/genobject.o
Objects/fileobject.o
Objects/floatobject.o
Objects/frameobject.o
Objects/funcobject.o
Objects/interpreteridobject.o
Objects/iterobject.o
Objects/listobject.o
Objects/longobject.o
Objects/dictobject.o
Objects/odictobject.o
Objects/memoryobject.o
Objects/methodobject.o
Objects/moduleobject.o
Objects/namespaceobject.o
Objects/object.o
Objects/obmalloc.o
Objects/picklebufobject.o
Objects/rangeobject.o
Objects/setobject.o
Objects/sliceobject.o
Objects/structseq.o
Objects/tupleobject.o
Objects/typeobject.o
Objects/unicodeobject.o
Objects/unicodectype.o
Objects/weakrefobject.o
Python/_warnings.o
Python/Python-ast.o
Python/asdl.o
Python/ast.o
Python/ast_opt.o
Python/ast_unparse.o
Python/bltinmodule.o
Python/ceval.o
Python/codecs.o
Python/compile.o
Python/context.o
Python/dynamic_annotations.o
Python/errors.o
Python/frozenmain.o
Python/future.o
Python/getargs.o
Python/getcompiler.o
Python/getcopyright.o
Python/getplatform.o
Python/getversion.o
Python/graminit.o
Python/hamt.o
Python/import.o
Python/importdl.o
Python/initconfig.o
Python/marshal.o
Python/modsupport.o
Python/mysnprintf.o
Python/mystrtoul.o
Python/pathconfig.o
Python/peephole.o
Python/preconfig.o
Python/pyarena.o
Python/pyctype.o
Python/pyfpe.o
Python/pyhash.o
Python/pylifecycle.o
Python/pymath.o
Python/pystate.o
Python/pythonrun.o
Python/pytime.o
Python/bootstrap_hash.o
Python/structmember.o
Python/symtable.o
Python/sysmodule.o
Python/thread.o
Python/traceback.o
Python/getopt.o
Python/pystrcmp.o
Python/pystrtod.o
Python/pystrhex.o
Python/dtoa.o
Python/formatter_unicode.o
Python/fileutils.o
Python/dynload_shlib.o
Python/pydtrace.o
Modules/config.o
Modules/getpath.o
Modules/main.o
Modules/gcmodule.o
Modules/posixmodule.o
Modules/errnomodule.o
Modules/pwdmodule.o
Modules/_sre.o
Modules/_codecsmodule.o
Modules/_weakref.o
Modules/_functoolsmodule.o
Modules/_operator.o
Modules/_collectionsmodule.o
Modules/_abc.o
Modules/itertoolsmodule.o
Modules/atexitmodule.o
Modules/signalmodule.o
Modules/_stat.o
Modules/timemodule.o
Modules/_threadmodule.o
Modules/_localemodule.o
Modules/_iomodule.o
Modules/iobase.o
Modules/fileio.o
Modules/bytesio.o
Modules/bufferedio.o
Modules/textio.o
Modules/stringio.o
Modules/faulthandler.o
Modules/_tracemalloc.o
Modules/hashtable.o
Modules/symtablemodule.o
Modules/xxsubtype.o
Python/frozen.o
---
Python configure options:
---
./configure
--build=ppc64le-redhat-linux-gnu
--host=ppc64le-redhat-linux-gnu
--program-prefix=
--disable-dependency-tracking
--prefix=/usr
--exec-prefix=/usr
--bindir=/usr/bin
--sbindir=/usr/sbin
--sysconfdir=/etc
--datadir=/usr/share
--includedir=/usr/include
--libdir=/usr/lib64
--libexecdir=/usr/libexec
--localstatedir=/var
--sharedstatedir=/var/lib
--mandir=/usr/share/man
--infodir=/usr/share/info
--enable-ipv6
--enable-shared
--with-computed-gotos=yes
--with-dbmliborder=gdbm:ndbm:bdb
--with-system-expat
--with-system-ffi
--enable-loadable-sqlite-extensions
--with-dtrace
--with-lto
--with-ssl-default-suites=openssl
--with-valgrind
--without-ensurepip
--enable-optimizations
---
I found the error message in GNU gas assembler:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=gas/write.c;h=5d9a2394224d0c36129cc70f0d5755c7014ff9bb;hb=HEAD#l1169
The error message is quite old, it has been added in 2008:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=76d1293995586b060a2dc642a72c877db7092580;hp=b96e292732664fd8c63970ca11c3a9ac92f60ff9
--
Fedora builds of python39:
https://koschei.fedoraproject.org/package/python39
Build 40639489 is green, build 40790556 is red. One interesting difference is
GCC 9.2.1 upgraded to GCC 10.0.1.
All differences (Dependency changes from previous build):
glibc-devel
2.30.9000-29.fc32
2.30.9000-30.fc32
1
redhat-rpm-config
146-1.fc32
148-1.fc32
1
gcc-c++
9.2.1-1.fc32.3
10.0.1-0.3.fc32
1
glibc-all-langpacks
2.30.9000-29.fc32
2.30.9000-30.fc32
1
sqlite-devel
3.30.1-2.fc32
3.30.1-3.fc32
1
glibc-common
2.30.9000-29.fc32
2.30.9000-30.fc32
2
perl-Exporter
5.73-440.fc31
5.74-1.fc32
2
gcc
9.2.1-1.fc32.3
10.0.1-0.3.fc32
2
annobin
8.92-1.fc32
9.01-1.fc32
2
sqlite
3.30.1-2.fc32
3.30.1-3.fc32
2
libxcrypt-devel
4.4.10-2.fc32
4.4.11-1.fc32
2
libstdc++-devel
9.2.1-1.fc32.3
10.0.1-0.3.fc32
2
libgcc
9.2.1-1.fc32.3
10.0.1-0.3.fc32
2
glibc
2.30.9000-29.fc32
2.30.9000-30.fc32
2
sqlite-libs
3.30.1-2.fc32
3.30.1-3.fc32
2
libxcrypt
4.4.10-2.fc32
4.4.11-1.fc32
2
glibc-headers
2.30.9000-29.fc32
2.30.9000-30.fc32
2
libstdc++
9.2.1-1.fc32.3
10.0.1-0.3.fc32
2
fontconfig-devel
2.13.92-3.fc32
2.13.92-4.fc32
3
cpp
9.2.1-1.fc32.3
10.0.1-0.3.fc32
3
tzdata
2019c-1.fc32
2019c-2.fc32
3
kernel-headers
5.5.0-0.rc6.git0.1....
5.5.0-0.rc7.git0.1....
3
libgomp
9.2.1-1.fc32.3
10.0.1-0.3.fc32
3
fontconfig
2.13.92-3.fc32
2.13.92-4.fc32
3
glibc-minimal-langpack
2.30.9000-29.fc32
2.30.9000-30.fc32
3
libtool-ltdl
2.4.6-31.fc31
2.4.6-32.fc32
