Date: Sat, 2 Aug 1997 09:37:29 -0700 (PDT) From: livio@csl.sri.com To: freebsd-gnats-submit@FreeBSD.ORG Subject: bin/4216: dlsym returns null Message-ID: <199708021637.JAA00709@hub.freebsd.org> Resent-Message-ID: <199708021640.JAA00801@hub.freebsd.org>
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>Number: 4216
>Category: bin
>Synopsis: dlsym returns null
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Aug 2 09:40:01 PDT 1997
>Last-Modified:
>Originator: livio ricciulli
>Organization:
sri International
>Release: 2.2-970422-RELENG2.2-970422-RELENG
>Environment:
FreeBSD hyacinth.csl.sri.com 2.2-970422-RELENG FreeBSD 2.2-970422-RELENG #0: Thu Apr 24 14:29:18 PDT 1997 gilham@hyacinth.csl.sri.com:/usr/src/sys/compile/HYACINTH i386
>Description:
dlsym returns null pointer on FreeBSD system while exact same function works on both Linux and SunOs.
>How-To-Repeat:
here is the culprit..
spawn_thread(thread,path)
int thread;
char *path;
{
char *error;
threadtable[thread].handle = dlopen (path, 1);
if (!threadtable[thread].handle) { fputs (dlerror(), stderr); exit(1); }
printf("Spawning thread %d with entry point %s\n",thread,threadtable[thread].argv[0]);
threadtable[thread].main_fun=dlsym(threadtable[thread].handle, threadtable[thread].argv[0]);
if ((error = dlerror()) != NULL) { fputs(error, stderr); exit(1); }
threadtable[thread].main_fun(threadtable[thread].argc, threadtable[thread].argv);
}
>Fix:
I do not know why this does not work..
>Audit-Trail:
>Unformatted:
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