[Bug 690194] Re: /usr/lib/gcc/x86_64-linux-gnu/4.5/lto1 crashes with segmentation fault when both -fopenmp and -flto are used
Vladimir Kolesnikov
vladimir at free-sevastopol.com
Fri Jul 15 12:32:54 UTC 2011
With gcc-4.6 I see a different bug.
When compiling without -flto, ie
gcc test.c -o test -O1 -fopenmp -std=c99
everything is fine.
With -flto:
$ gcc test.c -o test -O1 -fopenmp -flto -std=c99
/tmp/cckxIhdE.ltrans0.ltrans.o: In function `main._omp_fn.0.2060.2020':
cckxIhdE.ltrans0.o:(.text+0x2): undefined reference to `omp_get_num_threads'
cckxIhdE.ltrans0.o:(.text+0x9): undefined reference to `omp_get_thread_num'
/tmp/cckxIhdE.ltrans0.ltrans.o: In function `main':
cckxIhdE.ltrans0.o:(.text+0x87): undefined reference to `GOMP_parallel_start'
cckxIhdE.ltrans0.o:(.text+0x8c): undefined reference to `GOMP_parallel_end'
collect2: ld returned 1 exit status
$ gcc test.c -o test -O1 -fopenmp -flto -std=c99 -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.1-4ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-multiarch --with-multiarch-defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-4ubuntu1)
COLLECT_GCC_OPTIONS='-o' 'test' '-O1' '-fopenmp' '-flto' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/cc1 -quiet -v -D_REENTRANT test.c -quiet -dumpbase test.c -mtune=generic -march=x86-64 -auxbase test -O1 -std=c99 -version -fopenmp -flto -fstack-protector -o /tmp/ccjn2A1G.s
GNU C (Ubuntu/Linaro 4.6.1-4ubuntu1) version 4.6.1 (x86_64-linux-gnu)
compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/include
/usr/local/include
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
GNU C (Ubuntu/Linaro 4.6.1-4ubuntu1) version 4.6.1 (x86_64-linux-gnu)
compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: f4dac7f0dc853914603e09c85c5ce51e
COLLECT_GCC_OPTIONS='-o' 'test' '-O1' '-fopenmp' '-flto' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread'
as --64 -o /tmp/ccLtmwIC.o /tmp/ccjn2A1G.s
COMPILER_PATH=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/
LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../:/lib/:/usr/lib/:/usr/lib/x86_64-linux-gnu/
Reading specs from /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/libgomp.spec
COLLECT_GCC_OPTIONS='-o' 'test' '-O1' '-fopenmp' '-flto' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/collect2 -plugin /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/liblto_plugin.so -plugin-opt=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/lto-wrapper -plugin-opt=-fresolution=/tmp/ccLuLary.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lpthread -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s -flto --build-id --no-add-needed --as-needed --eh-frame-hdr -m elf_x86_64 --hash-style=gnu -dynamic-linker /lib64/ld-linux-x86-64.so.2 -z relro -o test /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../crt1.o /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../crti.o /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/crtbegin.o -L/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1 -L/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../.. -L/usr/lib/x86_64-linux-gnu /tmp/ccLtmwIC.o -lgomp -lgcc --as-needed -lgcc_s --no-as-needed -lpthread -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/crtend.o /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../crtn.o
gcc @/tmp/ccoBOoSF.args
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.1-4ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-multiarch --with-multiarch-defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-4ubuntu1)
COLLECT_GCC_OPTIONS='-c' '-O1' '-fopenmp' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread' '-dumpdir' './' '-dumpbase' 'test.wpa' '-fltrans-output-list=/tmp/ccqnqk6J.ltrans.out' '-fwpa' '-fresolution=/tmp/ccLuLary.res' '-pthread'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/lto1 -quiet -dumpdir ./ -dumpbase test.wpa -mtune=generic -march=x86-64 -auxbase ccLtmwIC -O1 -std=c99 -version -fopenmp -fltrans-output-list=/tmp/ccqnqk6J.ltrans.out -fwpa -fresolution=/tmp/ccLuLary.res @/tmp/ccOuUCCK
GNU GIMPLE (Ubuntu/Linaro 4.6.1-4ubuntu1) version 4.6.1 (x86_64-linux-gnu)
compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU GIMPLE (Ubuntu/Linaro 4.6.1-4ubuntu1) version 4.6.1 (x86_64-linux-gnu)
compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
COMPILER_PATH=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/
LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../:/lib/:/usr/lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../:/lib/:/usr/lib/:/usr/lib/x86_64-linux-gnu/
COLLECT_GCC_OPTIONS='-c' '-O1' '-fopenmp' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread' '-dumpdir' './' '-dumpbase' 'test.wpa' '-fltrans-output-list=/tmp/ccqnqk6J.ltrans.out' '-fwpa' '-fresolution=/tmp/ccLuLary.res' '-pthread'
gcc @/tmp/ccantxtx.args
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.1-4ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-multiarch --with-multiarch-defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-4ubuntu1)
COLLECT_GCC_OPTIONS='-c' '-O1' '-fopenmp' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread' '-dumpdir' './' '-dumpbase' 'test.ltrans0' '-fltrans' '-o' '/tmp/ccqnqk6J.ltrans0.ltrans.o' '-pthread'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/lto1 -quiet -dumpdir ./ -dumpbase test.ltrans0 -mtune=generic -march=x86-64 -auxbase-strip /tmp/ccqnqk6J.ltrans0.ltrans.o -O1 -std=c99 -version -fopenmp -fltrans @/tmp/cckb2oPN -o /tmp/cclzJJEJ.s
GNU GIMPLE (Ubuntu/Linaro 4.6.1-4ubuntu1) version 4.6.1 (x86_64-linux-gnu)
compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU GIMPLE (Ubuntu/Linaro 4.6.1-4ubuntu1) version 4.6.1 (x86_64-linux-gnu)
compiled by GNU C version 4.6.1, GMP version 5.0.1, MPFR version 3.0.1-p3, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
COLLECT_GCC_OPTIONS='-c' '-O1' '-fopenmp' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread' '-dumpdir' './' '-dumpbase' 'test.ltrans0' '-fltrans' '-o' '/tmp/ccqnqk6J.ltrans0.ltrans.o' '-pthread'
as --64 -o /tmp/ccqnqk6J.ltrans0.ltrans.o /tmp/cclzJJEJ.s
COMPILER_PATH=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/
LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../:/lib/:/usr/lib/:/usr/lib/x86_64-linux-gnu/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/:/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.6.1/../../../:/lib/:/usr/lib/:/usr/lib/x86_64-linux-gnu/
COLLECT_GCC_OPTIONS='-c' '-O1' '-fopenmp' '-std=c99' '-v' '-mtune=generic' '-march=x86-64' '-pthread' '-dumpdir' './' '-dumpbase' 'test.ltrans0' '-fltrans' '-o' '/tmp/ccqnqk6J.ltrans0.ltrans.o' '-pthread'
/tmp/ccqnqk6J.ltrans0.ltrans.o: In function `main._omp_fn.0.2060.2020':
ccqnqk6J.ltrans0.o:(.text+0x2): undefined reference to `omp_get_num_threads'
ccqnqk6J.ltrans0.o:(.text+0x9): undefined reference to `omp_get_thread_num'
/tmp/ccqnqk6J.ltrans0.ltrans.o: In function `main':
ccqnqk6J.ltrans0.o:(.text+0x87): undefined reference to `GOMP_parallel_start'
ccqnqk6J.ltrans0.o:(.text+0x8c): undefined reference to `GOMP_parallel_end'
collect2: ld returned 1 exit status
--
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to gcc-4.5 in Ubuntu.
https://bugs.launchpad.net/bugs/690194
Title:
/usr/lib/gcc/x86_64-linux-gnu/4.5/lto1 crashes with segmentation fault
when both -fopenmp and -flto are used
Status in “gcc-4.5” package in Ubuntu:
New
Status in “gcc-4.6” package in Ubuntu:
Incomplete
Bug description:
Binary package hint: gcc-4.5
$ lsb_release -rd
Description: Ubuntu 10.10
Release: 10.10
$ LC_ALL=C apt-cache policy gcc-4.5
gcc-4.5:
Installed: 4.5.1-7ubuntu2
Candidate: 4.5.1-7ubuntu2
Version table:
*** 4.5.1-7ubuntu2 0
500 http://ua.archive.ubuntu.com/ubuntu/ maverick/main amd64 Packages
100 /var/lib/dpkg/status
Test file will be attached.
$ gcc-4.5 test.c -o test -O1 -fopenmp -flto -std=c99
lto1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.5/README.Bugs> for instructions.
lto-wrapper: /usr/bin/gcc-4.5.real returned 1 exit status
collect2: lto-wrapper returned 1 exit status
The bug does not happen with -O0, or when either -flto or -fopenmp is
not used
Despite 'ulimit -c unlimited', core file is not generated.
---
Architecture: amd64
DistroRelease: Ubuntu 10.10
NonfreeKernelModules: fglrx
Package: gcc-4.5 4.5.1-7ubuntu2
PackageArchitecture: amd64
ProcEnviron:
LANGUAGE=ru_RU:ru
LANG=ru_RU.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.35-23.41-server 2.6.35.7
Tags: maverick
Uname: Linux 2.6.35-23-server x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare vboxusers
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gcc-4.5/+bug/690194/+subscriptions
More information about the foundations-bugs
mailing list