Re: Debian Linux

Jack wrote: > Andreas Breitfeld <abreitfe@de.ibm.com> wrote in message > news:<blbgln$13do$1@gazette.almaden.ibm.com>... >> Cindy Lichtenauer wrote: >> >> > Anyone have any successful experience with Informix on Debian Linux? >> > >> > Will IDS 9.4 run on it? >> >> Yes, but for Debian 3.0r1 you need a patched libpthread.so for IDS 9.4. >> >> Andreas >> >> ------------ >> Build a patched libpthread.so (see attached >> libifxpthread-glibc225.patch) using following steps as user root: >> # cp libifxpthread-glibc225.patch /tmp >> Install kernel headers (Debian 3.0r1 official binary CD #6): >> # apt-cdrom >> # apt-get install kernel-headers >> compile glibc sources (Debian 3.0r1 official source CD #1): >> # apt-cdrom >> # mkdir source >> # cd source >> # apt-get --compile source glibc>> Patch the glibc sources: >> # cd glibc-2.2.5/glibc-2.2.5/linuxthreads >> # cat /tmp/libifxpthread-glibc225.patch | patch -b>> Compile libpthread.so: >> # cd ../../i386-linux/obj >> # make >> Install libifxpthread.so.4: >> # export INFORMIXDIR=/opt/informix (example, IDS 9.40 directory) >> # cp linuxthreads/libpthread.so $INFORMIXDIR/lib/libifxpthread.so.4 >> # chown informix:informix $INFORMIXDIR/lib/libifxpthread.so.4 >> # chmod 755 $INFORMIXDIR/lib/libifxpthread.so.4 >> # ln -s $INFORMIXDIR/lib/libifxpthread.so.4 /var/lib/libpthread.so.0>> Check oninit for right path to libpthread.so.0: >> # ldd $INFORMIXDIR/bin/oninit >> libpthread.so.0 => /var/lib/libpthread.so.0 >> >> -- > > hello, > > Could you point me to a place where this lib or patch exist? Thanks. > Regards, > Jack Obviously the attached file was removed by some News archives. Following is the text of libifxpthread-glibc225.patch (please take care because line wraps): --- ./internals.h.ori Wed Apr 23 15:09:34 2003 +++ ./internals.h Wed Apr 23 15:18:39 2003 @@ -267,6 +267,15 @@ extern char *__pthread_initial_thread_bos; +/* lowest bottom of stack of any other thread ever allocated + This is used for checking stack pointer between this value + and __pthread_initial_thread_bos to check other threads + before checking initial threads stack. This enables switching + the stack of the initial thread (in user level multithreading) + and make thread_self() working correctly. see also internals.h */ + +extern char *__pthread_other_threads_lowest_bos; + /* Indicate whether at least one thread has a user-defined stack (if 1), or all threads have stacks supplied by LinuxThreads (if 0). */ @@ -382,16 +391,27 @@ return THREAD_SELF; #else char *sp = CURRENT_STACK_FRAME; - if (sp >= __pthread_initial_thread_bos) - return &__pthread_initial_thread; - else if (sp >= __pthread_manager_thread_bos - && sp < __pthread_manager_thread_tos) + if (sp >= __pthread_manager_thread_bos + && sp < __pthread_manager_thread_tos) return &__pthread_manager_thread; - else if (__pthread_nonstandard_stacks) - return __pthread_find_self(); - else #ifdef _STACK_GROWS_DOWN - return (pthread_descr)(((unsigned long)sp | (STACK_SIZE-1))+1) - 1; + else + { + if(__pthread_nonstandard_stacks) + { + pthread_descr pd; + if( (pd = __pthread_find_self()) != NULL ) + return pd; + } + else + { + if( __pthread_other_threads_lowest_bos != NULL && + sp < __pthread_initial_thread_bos && + sp >= __pthread_other_threads_lowest_bos ) + return (pthread_descr)(((unsigned long)sp | (STACK_SIZE-1))+1) - 1; + } + } + return &__pthread_initial_thread; #else return (pthread_descr)((unsigned long)sp &~ (STACK_SIZE-1)); #endif --- ./pthread.c.ori Wed Apr 23 15:19:18 2003 +++ ./pthread.c Wed Apr 23 15:22:55 2003 @@ -168,6 +168,15 @@ char *__pthread_initial_thread_bos; +/* lowest bottom of stack of any other thread ever allocated + This is used for checking stack pointer between this value + and __pthread_initial_thread_bos to check other threads + before checking initial threads stack. This enables switching + the stack of the initial thread (in user level multithreading) + and make thread_self() working correctly. see also internals.h */ + +char *__pthread_other_threads_lowest_bos = NULL; + /* File descriptor for sending requests to the thread manager. */ /* Initially -1, meaning that the thread manager is not running. */ @@ -717,8 +726,12 @@ /* __pthread_handles[0] is the initial thread, __pthread_handles[1] is the manager threads handled specially in thread_self(), so start at 2 */ h = __pthread_handles + 2; - while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom)) h++; - return h->h_descr; + while (! (sp <= (char *) h->h_descr && sp >= h->h_bottom && + h < (__pthread_handles + PTHREAD_THREADS_MAX) )) h++; + if( h < (__pthread_handles + PTHREAD_THREADS_MAX) ) + return h->h_descr; + else + return NULL; } #else --- ./manager.c.ori Wed Apr 23 15:24:25 2003 +++ ./manager.c Wed Apr 23 15:27:56 2003 @@ -487,6 +487,10 @@ return -1; } + if( __pthread_other_threads_lowest_bos == NULL || + __pthread_other_threads_lowest_bos > new_thread_bottom ) + __pthread_other_threads_lowest_bos = new_thread_bottom; + /* We manage to get a stack. Protect the guard area pages if necessary. */ guardaddr = map_addr;