Re: [kde-freebsd] [KDE/Mac] [CODE] Multithreaded SIGSEGV signal handling, please examine
Hi, Am 25.09.2011 um 01:37 schrieb Michael Pyne: [...] With that said I don't think the code uses as many POSIX options as the rest of KSharedDataCache (e.g. process-shared mutexes as unimplemented on Mac OS X) but I wanted to give a chance for you guys to test the prototype code beforehand and let me know if there's problems. You'll want to compile with something like this: $CXX -O2 -o sigcatcher -lrt -pthread sigcatcher.cpp Here is the first issue: librt doesn't exist here (Mac OS X 10.5 Leopard). However, the code compiles without the -lrt. $ g++ -O2 -o sigcatcher -pthread sigcatcher.cpp $ g++ --version i686-apple-darwin9-g++-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5493) Make sure optimization is enabled to ensure volatile is used where it's needed. Assuming everything works right you should get output like: $ ./sigcatcher Hello, World! Got a result of 1 Exited thread $ The next problem is, that sem_init(..) isn't implemented here. $ ./sigcatcher Error: sem_init: Function not implemented $ It seems that only named semaphores are implemented. I've changed this part of your code to use sem_open(..) instead [see attachment] and then I get the expected result: sigcatcher-sem_open.cpp Description: Binary data $ g++ -O2 -o sigcatcher-sem_open -pthread sigcatcher-sem_open.cpp $ ./sigcatcher-sem_open Hello, World! Got a result of 1 Exited thread $ bye, Jonas If you want to see the signal handler in action there's a couple of lines you can uncomment (just grep for uncomment to find where). Obviously any other feedback on possible issues is appreciated as well, but basically I'd like to catch any portability issues early this time instead of after-the-fact. Please CC me on any replies as I'm not subscribed. Regards, - Michael Pynesigcatcher.cpp___ kde-...@kde.org List Information: https://mail.kde.org/mailman/listinfo/kde-mac KDE/Mac Information: http://techbase.kde.org/index.php?title=Projects/KDE_on_Mac_OS_X ___ kde-freebsd mailing list kde-freebsd@kde.org https://mail.kde.org/mailman/listinfo/kde-freebsd See also http://freebsd.kde.org/ for latest information
Re: [kde-freebsd] [KDE/Mac] [CODE] Multithreaded SIGSEGV signal handling, please examine
On Sep 25, 2011, at 8:34 AM, Jonas Bähr wrote: Hi, Am 25.09.2011 um 01:37 schrieb Michael Pyne: [...] With that said I don't think the code uses as many POSIX options as the rest of KSharedDataCache (e.g. process-shared mutexes as unimplemented on Mac OS X) but I wanted to give a chance for you guys to test the prototype code beforehand and let me know if there's problems. You'll want to compile with something like this: $CXX -O2 -o sigcatcher -lrt -pthread sigcatcher.cpp Here is the first issue: librt doesn't exist here (Mac OS X 10.5 Leopard). However, the code compiles without the -lrt. $ g++ -O2 -o sigcatcher -pthread sigcatcher.cpp $ g++ --version i686-apple-darwin9-g++-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5493) Make sure optimization is enabled to ensure volatile is used where it's needed. Assuming everything works right you should get output like: $ ./sigcatcher Hello, World! Got a result of 1 Exited thread $ The next problem is, that sem_init(..) isn't implemented here. $ ./sigcatcher Error: sem_init: Function not implemented $ It seems that only named semaphores are implemented. I've changed this part of your code to use sem_open(..) instead [see attachment] and then I get the expected result: sigcatcher-sem_open.cpp $ g++ -O2 -o sigcatcher-sem_open -pthread sigcatcher-sem_open.cpp $ ./sigcatcher-sem_open Hello, World! Got a result of 1 Exited thread $ Same results as Jonas on Lion. i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00) Kurt ___ kde-freebsd mailing list kde-freebsd@kde.org https://mail.kde.org/mailman/listinfo/kde-freebsd See also http://freebsd.kde.org/ for latest information
Re: [kde-freebsd] [KDE/Mac] [CODE] Multithreaded SIGSEGV signal handling, please examine
On Sunday, September 25, 2011 14:34:49 you wrote: The next problem is, that sem_init(..) isn't implemented here. $ ./sigcatcher Error: sem_init: Function not implemented $ It seems that only named semaphores are implemented. I've changed this part of your code to use sem_open(..) instead [see attachment] and then I get the expected result: For the application in question named synchronization primitives are non- ideal. Does Mac OS X support a plain pthread_mutex? If so that would work fine (and probably even the Qt primitives will work OK). Also, could you test whether a SIGSEGV is actually caught and handled correctly? My email last night was wishy-washy about that but the sigsetjmp/siglongjmp stuff is closer to hocus-pocus than most programs are likely to get and it would be nice to know if that works or not. Regards, - Michael Pyne signature.asc Description: This is a digitally signed message part. ___ kde-freebsd mailing list kde-freebsd@kde.org https://mail.kde.org/mailman/listinfo/kde-freebsd See also http://freebsd.kde.org/ for latest information
Re: [kde-freebsd] ports/156901: [patch] devel/cmake breaks with CC containing spaces
On Sat, Sep 24, 2011 at 7:47 PM, Dominic Fandrey kamik...@bsdforen.de wrote: No problem. Knowing where I stand makes it a lot easier for me, so thanks for telling me! thank you for the work you have done so far, quite a big one! we'll let you know when there is time for this -- Alberto Villa, FreeBSD committer avi...@freebsd.org http://people.FreeBSD.org/~avilla ___ kde-freebsd mailing list kde-freebsd@kde.org https://mail.kde.org/mailman/listinfo/kde-freebsd See also http://freebsd.kde.org/ for latest information
