I've seen the same kind of stack tract with our poll plugin. Olga
On Sun, Aug 1, 2010 at 4:37 AM, Finnbarr Murphy <[email protected]> wrote: > Plugins appear to have stopped working in the latest release of ksh93 > - at least on 64-bit Linux. > > Here is a very simple crude "HelloWorld" example of a plugin: > #include <stdio.h> > int > b_hello(int argc, char *argv[], void *extra) > { > if (argc != 2) { > fprintf(stderr,"Usage: hello arg\n"); > return(2); > } > printf("Hello %s\n", argv[1]); > return(0); > } > which is built as follows: > gcc -fPIC -g -c hello.c > gcc -shared -W1,-soname,libhello.so -o libhello.so hello.o > Works fine on ksh83 Version JM 93t+ 2010-03-05 and earlier > $ ./ksh > $ echo ${.sh.version} > Version JM 93t+ 2010-03-05 > $ builtin -f ./libhello.so hello > $ hello world > Hello there world > $ > but core dumps on later versions of ksh93 > $ /bin/ksh > $ echo ${.sh.version} > Version JM 93t+ 2010-06-21 > $ builtin -f ./libhello.so hello > Memory fault(coredump) > Program terminated with signal 11, Segmentation fault. > #0 dllplugin (lib=0x0, name=0x177c531 "./libhello.so", > ver=<value optimized out>, rel=20100528, flags=1, path=0x0, size=0) > at /usr/src/debug/ksh-20100621/src/lib/libdll/dllplug.c:82 > 82 if (!dllcheck(dll, dle->path, rel)) > Extensive work was recently done in libdll. New source code > files include dlllib.h, dllcheck.c, dllerror.c, dllplug.c. > Is there now a requirement to have a version number on a plugin? > Do plugins need to be build differently? > - Finnbarr > _______________________________________________ > ast-developers mailing list > [email protected] > https://mailman.research.att.com/mailman/listinfo/ast-developers > > -- , _ _ , { \/`o;====- Olga Kryzhanovska -====;o`\/ } .----'-/`-/ [email protected] \-`\-'----. `'-..-| / http://twitter.com/fleyta \ |-..-'` /\/\ Solaris/BSD//C/C++ programmer /\/\ `--` `--` _______________________________________________ ast-developers mailing list [email protected] https://mailman.research.att.com/mailman/listinfo/ast-developers
