Path: csiph.com!xmission!news.glorb.com!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: loadable builtins on HP-UX Date: Tue, 3 Nov 2015 18:25:40 -0500 Organization: ITS, Case Western Reserve University Lines: 31 Approved: bug-bash@gnu.org Message-ID: References: <20151103214551.GI27325@eeg.ccf.org> Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1446593177 16141 208.118.235.17 (3 Nov 2015 23:26:17 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: Greg Wooledge , bug-bash@gnu.org Envelope-to: bug-bash@gnu.org User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 In-Reply-To: <20151103214551.GI27325@eeg.ccf.org> X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.56394275.0137,ss=1,re=0.000,fgs=0, ip=40.133.190.206, so=2015-08-12 04:07:17, dmn=2011-05-27 18:58:46 X-Mirapoint-Loop-Id: 04044242a8965250c953eacee6652e6e X-Junkmail-Whitelist: YES (by domain whitelist at mpv3-2015.case.edu) X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020202.56394278.0004,ss=1,re=0.000,fgs=0, ip=40.133.190.206, so=2015-08-12 04:07:17, dmn=2011-05-27 18:58:46 X-Mirapoint-Loop-Id: a78d4e1354ddab7b13365a4a059949d6 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 129.22.103.194 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:11831 On 11/3/15 4:45 PM, Greg Wooledge wrote: > To the surprise of approximately zero people, loadable builtins don't > fully work on HP-UX. > > I'll spare you any results from 10.20 because it's totally unsupported > at this point. (It doesn't even use dlopen().) > > On HP-UX 11.11, things half work. This is with 4.4-beta, sitting in the > .../examples/loadables/ directory, after a "make all": > > bash-4.4# enable -f ./finfo finfo > bash: enable: cannot find finfo_struct in shared object ./finfo: Unresolved module for symbol: sh_optarg (data) from ./finfo > > bash-4.4# enable -f ./tty tty > bash-4.4# type -a tty > tty is a shell builtin > tty is /usr/bin/tty > bash-4.4# tty > /usr/lib/dld.sl: Unresolved symbol: reset_internal_getopt (code) from ./tty > /usr/lib/dld.sl: Unresolved symbol: reset_internal_getopt (code) from ./tty > ABORT instruction (core dumped) It looks like shared objects loaded by dlopen don't have access to the loading program's symbols. That might be an HP-specific option to dlopen. It might not, in which case you're out of luck. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/