LD_PRELOAD without shell

hel1os has asked for the wisdom of the Perl Monks concerning the following question:

Hello I use some command-line soft, running it with IPC::Open2

$pid = open2($co, $ci, "./progname", "--option1", "--option2", "$param
+");
[download]

It's necessary to start it without shell(i need real PID) But I need to preload some lib. Adding "LD_PRELOAD" to "./progname" don't work without using another form of open, which run shell:

$pid = open2($co, $ci, "LD_PRELOAD=./blah.so ./progname --option1 --op
+tion2 $param");
[download]

Is there a way to preload lib without running shell?

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Re: LD_PRELOAD without shell by Corion (Patriarch) on Apr 22, 2013 at 11:35 UTC
Have you looked at %ENV? In what way did it fail to work? As an alternative, have you tried `LD_PRELOAD=./blah.so exec ./progname --option1 --option2` [download] ... to keep the "real" PID?	[reply] [d/l]
Re^2: LD_PRELOAD without shell by hel1os (Initiate) on Apr 22, 2013 at 12:37 UTC
is %ENV global for perl and another progs running from it? but exec works fine, thanks	[reply]
Re^3: LD_PRELOAD without shell by Corion (Patriarch) on Apr 22, 2013 at 12:43 UTC
From the linked documentation: Setting a value in ENV changes the environment for any child processes you subsequently fork() off. I'm sure it could be less specific on `fork()`, but the part about "any child processes" is still true.	[reply] [d/l]