July 2004 - chuck-dev - lists.cs.princeton.edu

bugs + features
by Ge Wang 04 Aug '04

04 Aug '04

For now, we are using SourceForge for our bug and feature tracking. Our web/dev/CVS will remain at cs.princeton.edu. To add bug / feature idea http://chuck.sf.net/ you will need to be an SF member (sign up at their main page). also, send me your SF id and we will add you as a dev. (if you don't want to do SourceForge, post/send the bugs and someone can add it if necessary) Also feel free to continue posting bugs/ideas here. If you have questions, please let us know! Thank you! Best, Ge!

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segfault - retry
by Ge Wang 29 Jul '04

29 Jul '04

I made a small, stupid change to chuck_instr.cpp (where it is crashing on gain), doing the same thing in a slightly different way. this may fool -O3 into generating the right code. Niklas, smoerk, Matthew please recompile with -O2 or -O3 and see if it still crashes. changes are in CVS. Best, Ge!

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autoconf & friends?
by Niklas Werner 29 Jul '04

29 Jul '04

Hi, just a thought (from seeing the makefile, and that each object has its own target inserted manually). Have you considered converting chuck to autoconf & friends? Those tools really do make the build/maintenance process easier, although the initial learning curve is considerably steep... Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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segfaults galore
by Niklas Werner 29 Jul '04

29 Jul '04

Hi all, I tried to run chuck (cvs from just an hour ago) in --loop mode. I can then add shreds, but if I try to remove one, chuck crashes: chuck --srate44100 --loop [chuck](VM): sporking incoming shred: 1... [chuck](VM): sporking incoming shred: 2... Segmentation fault the commands leading to this were: nick@detritus ~/build/chuck_dev/examples $ chuck + moe.ck nick@detritus ~/build/chuck_dev/examples $ chuck + larry.ck nick@detritus ~/build/chuck_dev/examples $ chuck - 2 (gdb) r --srate44100 --loop Starting program: /usr/bin/chuck --srate44100 --loop warning: Unable to find dynamic linker breakpoint function. GDB will be unable to debug shared library initializers and track explicitly loaded dynamic code. Program received signal SIG32, Real-time event 32. 0x0fc292f4 in pthread_getconcurrency () from /lib/libpthread.so.0 (gdb) c Continuing. Program received signal SIG32, Real-time event 32. 0x0fc292f4 in pthread_getconcurrency () from /lib/libpthread.so.0 (gdb) c Continuing. [chuck](VM): sporking incoming shred: 1... [chuck](VM): sporking incoming shred: 2... Program received signal SIGSEGV, Segmentation fault. 0x0fef277c in mallopt () from /lib/libc.so.6 (gdb) bt #0 0x0fef277c in mallopt () from /lib/libc.so.6 #1 0x0ffbc5ec in ?? () from /lib/libc.so.6 (gdb) hmmm, is there a double call to free() going on or anything similar? (Oh, and gentoo on Powerbook Aluminium) Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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Intro + question
by Bert Schiettecatte 27 Jul '04

27 Jul '04

Hi all, I'm new to the chuck list. I'm Bert Schiettecatte, and I'm a researcher in musical interfaces currently working in Belgium at the university of Brussels. I was at CCRMA a few years ago for a master of arts in music, science and tech. where some of you might have spotted me. Anyway, I have a question: I'd like to try to port chuck to a TI hardware DSP platform.. Any suggestions on how to do it? Thanks, bert

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coding suggestions
by Niklas Werner 26 Jul '04

26 Jul '04

Hi all, I'd like to suggest the following: use GNU getopt() for the command line options (--optionArgument is just greatly confusing: --option Argument is so much nicer, and you get rid of all the else if() in chuck_main. (plus I can offer my help in converting chuck_main to getopt(), if you want me to go ahead) Your next_power_2() function seems to waste loads of cycles, although this doesn't really matter, as it is only used at startup, but wouldn't that be a nice feature for the language anyway? Try: /* Thanks to music-dsp mailing-list */ inline unsigned nextPowerOfTwo (unsigned n) { unsigned prevN; for (prevN = n; n &= n-1; prevN = n) ; return (prevN * 2); } much faster... Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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post from niklas
by Ge Wang 26 Jul '04

26 Jul '04

redirected from chuck list... More info: nick@detritus ~ $ ldd /usr/bin/chuck libasound.so.2 => /usr/lib/libasound.so.2 (0x0e910000) libstdc++.so.6 => /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.4.1/libstdc++.so.6 (0x00cb0000) libdl.so.2 => /lib/libdl.so.2 (0x0fdd0000) libm.so.6 => /lib/libm.so.6 (0x0fdf0000) libc.so.6 => /lib/libc.so.6 (0x0fe80000) libpthread.so.0 => /lib/libpthread.so.0 (0x0fc20000) libgcc_s.so.1 => /usr/lib/gcc-lib/powerpc-unknown-linux-gnu/3.4.1/libgcc_s.so.1 (0x0fa10000) /lib/ld.so.1 => /lib/ld.so.1 (0x0ffd0000) attached strace log. from the same commands. Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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Re: [chuck-dev] gain ugen segmentation fault
by Ge Wang 12 Jul '04

12 Jul '04

Let's move this back to chuck-dev... Ge! On Jul 12, 2004, at 1:22 AM, n++k wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Yes, sorry about that, you need to type 'c <enter>' a few times before > getting > to the real crash. > > /wrote Niklas Werner <bergtroll(a)gmx.li> [Mon, 12 Jul 2004 15:03:25 > +1200] > > |On Mon, 12 Jul 2004 15:25, Matthew Shanley wrote: > |> Sorry for the delay, I had to go out of town for the weekend. > | > |> Program received signal SIG32, Real-time event 32. > |> 0x402f79f4 in pthread_getconcurrency () from /lib/libpthread.so.0 > |> > |> > |> Is this helpful? > |not really. > |You might want to type "where" or "bt" after the crash, as Nicolas > already > |wrote... This shows the whole trace of the function calls leading to > the > |crash. > | > |I can run your example without worries on my gentoo machine, btw. > (ppc) > | > |random ideas: > |- recent compiler upgrade and glibc not re-emerged? > |- different compiler used for alsa/kernel and chuck? > | > |(c++ can be very bitchy about different binary interfaces...) > | > |Cheers, > | > |Niklas > |-- > |Computer Music PhD-student > |University of Waikato > |Hamilton > |New Zealand > |_______________________________________________ > |chuck mailing list > |chuck(a)lists.cs.princeton.edu > |https://lists.cs.princeton.edu/mailman/listinfo/chuck > | > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.4 (GNU/Linux) > > iD8DBQFA8iAtFNuIde4eJFQRAu/XAKC/9LTm+TKVyFsE/1HMDiUC68WCIwCgn/rd > sp97NCpPS6Rxrv4few1OWoU= > =+4sk > -----END PGP SIGNATURE----- > _______________________________________________ > chuck mailing list > chuck(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck

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compile error gcc-3.4.1
by Niklas Werner 12 Jul '04

12 Jul '04

Hi => all, I can't get chuck to compile using gcc-3.4.1: Reading specs from /usr/lib/gcc/powerpc-unknown-linux-gnu/3.4.1/specs Configured with: /var/tmp/portage/gcc-3.4.1/work/gcc-3.4.1/configure --prefix=/usr --bindir=/usr/powerpc-unknown-linux-gnu/gcc-bin/3.4 --includedir=/usr/lib/gcc/powerpc-unknown-linux-gnu/3.4.1/include --datadir=/usr/share/gcc-data/powerpc-unknown-linux-gnu/3.4 --mandir=/usr/share/gcc-data/powerpc-unknown-linux-gnu/3.4/man --infodir=/usr/share/gcc-data/powerpc-unknown-linux-gnu/3.4/info --enable-shared --host=powerpc-unknown-linux-gnu --target=powerpc-unknown-linux-gnu --with-system-zlib --enable-languages=c,c++,f77 --enable-threads=posix --enable-long-long --disable-checking --disable-libunwind-exceptions --enable-cstdio=stdio --enable-version-specific-runtime-libs --with-gxx-include-dir=/usr/lib/gcc/powerpc-unknown-linux-gnu/3.4.1/include/g++-v3 --with-local-prefix=/usr/local --disable-werror --enable-shared --enable-nls --without-included-gettext --disable-multilib --enable-__cxa_atexit --enable-clocale=gnu Thread model: posix gcc version 3.4.1 (Gentoo Linux 3.4.1, ssp-3.4-2, pie-8.7.6.3) error as follows: gcc -D__LINUX_ALSA__ -O3 -g -c chuck_instr.cpp chuck_instr.cpp: In member function `virtual void Chuck_Instr_Lt_single::execute(Chuck_VM*, Chuck_VM_Shred*)': chuck_instr.cpp:1337: error: ISO C++ forbids cast to non-reference type used as lvalue and so on for lines 1337, 1365, 1379, 1392, 1406, 1420, 1434, 1448, 1462, 1475, 1489 sorry, my (almost non.existing) c++-knowledge doesn't suffice to debug this. compiler bug or real standard violation? gcc-3.3.4 compiles it cleanly, but it uses another libstdc++ ... Cheers, Niklas -- Computer Music PhD-student University of Waikato Hamilton New Zealand

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read only CVS access
by Ge Wang 12 Jul '04

12 Jul '04

you can access the chuck current dev repository in read-only mode: make sure your CVS_RSH environment variable is set to ssh cvs -d :ext:anon-chuck@cvs.cs.princeton.edu:/cvs checkout chuck_dev if you get prompted for password, just hit enter this should checkout chuck_dev into the current directory. src/ ckx/ - current chuck DLL's (including for GLucK, which Phil has been working on) examples/ notes/ - release notes the version number for the files are not accurate, we reset the thing a couple of times, but other stuff should be alright to go. let me know if you run into issues! Best, Ge!

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