[Bug c++/36288] New: OpenMP-C++: segmentation fault in basic string constructors

[Bug c++/36288] New: OpenMP-C++: segmentation fault in basic string constructors

[hailijuan at gmail dot com]

the testcase b.cc is attached to show the problem. the error just happened with
-m64. 

-bash-3.00$ /import/dr3/s10/gcc-4.2/bin/g++ b.cc -m64 -fopenmp
-bash-3.00$ export LD_LIBRARY_PATH=/import/dr3/s10/gcc-4.2/lib/sparcv9
-bash-3.00$ ./a.out
Segmentation Fault (core dumped)

-bash-3.00$ dbx a.out
(dbx) run
Running: a.out
(process id 12660)
Reading libc_psr.so.1
t@1 (l@1) signal SEGV (no mapping at the fault address) in _memcpy at
0xffffffff7dc00ee0
0xffffffff7dc00ee0: _memcpy+0x0660:     stda     %f32, [%o0] 0xf0

dbx: internal error: signal SIGSEGV (no mapping at the fault address)
dbx's coredump will appear in /tmp
Abort (core dumped)

-bash-3.00$ /import/dr3/s10/gcc-4.2/bin/g++ -v
Using built-in specs.
Target: sparc-sun-solaris2.10
Configured with: /import/dr2/starlex/1/gcc-4.2-20070228/configure
--prefix=/import/dr3/s10/gcc-4.2 --enable-languages=c,c++,fortran
--enable-rpath --with-mpfr=/import/dr3/s10/gcc-4.2
--with-gmp=/import/dr3/s10/gcc-4.2
Thread model: posix
gcc version 4.2.0 20070228 (prerelease)


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           Summary: OpenMP-C++: segmentation fault in basic string
                    constructors
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hailijuan at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288

[Bug c++/36288] OpenMP-C++: segmentation fault in basic string constructors

[hailijuan at gmail dot com]

------- Comment #1 from hailijuan at gmail dot com  2008-05-21 08:41 -------
Created an attachment (id=15660)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15660&action=view)
C++ OpenMP program.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288

[Bug c++/36288] OpenMP-C++: segmentation fault in basic string constructors

[pinskia at gcc dot gnu dot org]

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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Severity|major                       |normal


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288

[Bug c++/36288] OpenMP-C++: segmentation fault in basic string constructors

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2008-05-28 07:51 -------
Hmm, I don't think this is a bug as the assignment of the string is not going
to be atomic so you could get a partial assignment of a.astr happening.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288

[Bug middle-end/36288] OpenMP-C++: segmentation fault in basic string constructors

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2008-05-28 07:53 -------
Is there a reason why you think this is well defined code?


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c++                         |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288

[Bug middle-end/36288] OpenMP-C++: segmentation fault in basic string constructors

[hailijuan at gmail dot com]

------- Comment #4 from hailijuan at gmail dot com  2008-05-28 08:54 -------
Subject: Re:  OpenMP-C++: segmentation fault in basic string constructors

no. thanks for your comments. i have correct the testcase. the error
is gone with gcc-4.2. thanks again.

2008/5/28 pinskia at gcc dot gnu dot org <gcc-bugzilla@gcc.gnu.org>:
>
>
> ------- Comment #3 from pinskia at gcc dot gnu dot org  2008-05-28 07:53 -------
> Is there a reason why you think this is well defined code?
>
>
> --
>
> pinskia at gcc dot gnu dot org changed:
>
>           What    |Removed                     |Added
> ----------------------------------------------------------------------------
>          Component|c++                         |middle-end
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288
>
> ------- You are receiving this mail because: -------
> You reported the bug, or are watching the reporter.
>


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36288