This is the mail archive of the libstdc++@gcc.gnu.org mailing list for the libstdc++ project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [patch] Default to --enable-libstdcxx-time=auto


>> I get the
> > following testsuite regressions on Solaris 10/x86:
> >
> > FAIL: 30_threads/async/54297.cc (test for excess errors)
> > WARNING: 30_threads/async/54297.cc compilation failed to produce
> > executable FAIL: 30_threads/condition_variable_any/53830.cc (test
> > for excess errors) WARNING:
> > 30_threads/condition_variable_any/53830.cc compilation failed to
> > produ e executable FAIL: 30_threads/this_thread/3.cc (test for
> > excess errors) WARNING: 30_threads/this_thread/3.cc compilation
> > failed to produce executable FAIL: 30_threads/this_thread/4.cc
> > (test for excess errors) WARNING: 30_threads/this_thread/4.cc
> > compilation failed to produce executable FAIL:
> > 30_threads/thread/native_handle/cancel.cc (test for excess errors)
> > WARNING: 30_threads/thread/native_handle/cancel.cc compilation
> > failed to produc e executable
> >
> > All of them have the same root cause:
> >
> > Excess errors:
> > Undefined                       first referenced
> >  symbol                             in file
> > nanosleep                           /var/tmp//ccQhmiwd.o  (symbol
> > belongs to implicit dependency /lib/librt.so.1) ld: fatal: symbol
> > referencing errors. No output written to ./54297.exe collect2:
> > error: ld returned 1 exit status
> >
> > It seems that now every single C++ program needs to be linked with
> > -lrt, not only libstdc++.so.  This will also happen on Solaris 9
> > (bootstrap still running), while on Solaris 11 nanosleep and the
> > others were integrated into libc.so.1.

So you'll need conditional LDFLAGS for solaris 9 and 10 only?

> > Speaking of Solaris 9, there's another caveat: unlike Solaris 10
> > and up, CLOCK_MONOTONIC isn't defined, while the equivalent
> > non-standard CLOCK_HIGHRES is.  Instead of handling this in
> > libstdc++-v3/src/c++11/chrono.cc directly, I've chosen the following
> > route which allows libstdc++ to build on Solaris 9:
> >
> > 2013-05-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
> >
> > 	* config/os/solaris/solaris2.9/os_defines.h
> > [!CLOCK_MONOTONIC] (CLOCK_MONOTONIC): Define.
> 
> The Solaris 9 (i386-pc-solaris2.9) bootstrap has now completed
> successfully, so the patch above seems to be sound.  Ok for mainline?

This is ok.Thanks!

-benjamin


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]