* Segmentation faults with g++ 4.0
@ 2004-12-12 23:12 James W. McKelvey
2004-12-12 23:21 ` Larry Hall
0 siblings, 1 reply; 4+ messages in thread
From: James W. McKelvey @ 2004-12-12 23:12 UTC (permalink / raw)
To: cygwin
[-- Attachment #1: Type: text/plain, Size: 536 bytes --]
I installed CYGWIN_NT-5.1 a few days ago and then built g++ from the latest
CVS. Simple programs like the one below will compile and link, but then get
segmentation faults in pthread_specific on execution:
#include <locale>
#include <iostream>
static const std::locale l;
//static std::ostream& o = std::cerr;
int main(const int,
const char * const * const)
{
return 0;
}
Is this a known bug? The c++ that comes with Cygwin is way too old to compile
my code; I need at least 3.4.
Details are in the attachment.
[-- Attachment #2: log2.bz2 --]
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* Re: Segmentation faults with g++ 4.0
2004-12-12 23:12 Segmentation faults with g++ 4.0 James W. McKelvey
@ 2004-12-12 23:21 ` Larry Hall
0 siblings, 0 replies; 4+ messages in thread
From: Larry Hall @ 2004-12-12 23:21 UTC (permalink / raw)
To: mckelvey, cygwin
At 06:10 PM 12/12/2004, you wrote:
>I installed CYGWIN_NT-5.1 a few days ago and then built g++ from the latest
>CVS. Simple programs like the one below will compile and link, but then get
>segmentation faults in pthread_specific on execution:
>
>#include <locale>
>#include <iostream>
>
>static const std::locale l;
>//static std::ostream& o = std::cerr;
>
>int main(const int,
> const char * const * const)
>{
> return 0;
>}
>
>Is this a known bug? The c++ that comes with Cygwin is way too old to compile
>my code; I need at least 3.4.
Rerun 'setup.exe', choose the "Exp" radio button above the package list,
and then click the "View" button until it shows "Partial". This will
give you a list of the packages that you have installed that have
"Experimental" versions available. "g++" and friends should be in that
list with a "3.4.1-1" version option. Cycle those packages you don't want
to change to "Keep". Leave "g++" and friend as is and click "Next" to
upgrade.
This is likely much easier than building your own version and tracking
down bugs in your configuration.
HTH,
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
838 Washington Street (508) 893-9889 - FAX
Holliston, MA 01746
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* Re: Segmentation faults with g++ 4.0
@ 2004-12-13 0:00 Danny Smith
2004-12-13 1:15 ` James W. McKelvey
0 siblings, 1 reply; 4+ messages in thread
From: Danny Smith @ 2004-12-13 0:00 UTC (permalink / raw)
To: Cygwin; +Cc: mckelvey
James W. McKelvey wrote:
> I installed CYGWIN_NT-5.1 a few days ago and then built g++ from the
latest
> CVS. Simple programs like the one below will compile and link, but
then get
> segmentation faults in pthread_specific on execution:
>
> #include <locale>
> #include <iostream>
>
> static const std::locale l;
> //static std::ostream& o = std::cerr;
>
> int main(const int,
> const char * const * const)
> {
> return 0;
> }
>
> Is this a known bug? The c++ that comes with Cygwin is way too old to
compile
> my code; I need at least 3.4.
>
GCC-4.0.0 (C++) is very broken on cygwin.
Have a look at test results, here:
http://gcc.gnu.org/ml/gcc-testresults/2004-12/msg00544.html
There is a problem with pthreads and the recently added weak-linkage
support for windows targets.
But I'm glad to see someone is keen enough to test the bleeding edge.
Care to submit a bug report?
http://gcc.gnu.org/bugzilla
Danny
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Segmentation faults with g++ 4.0
2004-12-13 0:00 Danny Smith
@ 2004-12-13 1:15 ` James W. McKelvey
0 siblings, 0 replies; 4+ messages in thread
From: James W. McKelvey @ 2004-12-13 1:15 UTC (permalink / raw)
To: Danny Smith, Danny Smith, Cygwin; +Cc: mckelvey
On Sunday 12 December 2004 15:57 pm, Danny Smith wrote:
> James W. McKelvey wrote:
> > I installed CYGWIN_NT-5.1 a few days ago and then built g++ from the
>
> latest
>
> > CVS. Simple programs like the one below will compile and link, but
>
> then get
>
> > segmentation faults in pthread_specific on execution:
> >
> > #include <locale>
> > #include <iostream>
> >
> > static const std::locale l;
> > //static std::ostream& o = std::cerr;
> >
> > int main(const int,
> > const char * const * const)
> > {
> > return 0;
> > }
> >
> > Is this a known bug? The c++ that comes with Cygwin is way too old to
>
> compile
>
> > my code; I need at least 3.4.
>
> GCC-4.0.0 (C++) is very broken on cygwin.
> Have a look at test results, here:
>
> http://gcc.gnu.org/ml/gcc-testresults/2004-12/msg00544.html
>
> There is a problem with pthreads and the recently added weak-linkage
> support for windows targets.
>
> But I'm glad to see someone is keen enough to test the bleeding edge.
> Care to submit a bug report?
>
> http://gcc.gnu.org/bugzilla
>
> Danny
Thanks, Danny, I'll submit a bug report to GNU. I would have done that
initially, except I'm pretty sure that pthread_getspecific is in a Cygwin
dll, not part of g++. Also, g++ 4.0 is pretty solid on Alpha and Sun, at
least for my code.
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end of thread, other threads:[~2004-12-13 1:15 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2004-12-12 23:12 Segmentation faults with g++ 4.0 James W. McKelvey
2004-12-12 23:21 ` Larry Hall
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2004-12-13 1:15 ` James W. McKelvey
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