Path: utzoo!mnetor!uunet!husc6!hao!ames!ucbcad!ucbvax!XX.LCS.MIT.EDU!JDM
From: JDM@XX.LCS.MIT.EDU (Joshua D. Marantz)
Newsgroups: comp.os.vms
Subject: VAX C 2.2, VMS 4.6, VAXCRTL.EXE, and malloc()
Message-ID: <12360314439.37.JDM@XX.LCS.MIT.EDU>
Date: 21 Dec 87 20:35:05 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 19

We recently upgraded our OS to VMS 4.6, but left our c compiler at 2.2.
Programs linked under 4.4 exhibit the following behaviour from malloc().

If there is no more memory available (not so strange on a microvax with
a small disk), the routine signals %SYSTEM-F-RADRMOD, reserved addressing
fault.  If I relink using the V4.6 linkable library (VAXCRTL.OLB), malloc
returns NULL as advertised.

Is VMS no longer upward compatible?  Is this related to our old compiler
with the new operating system?  Shouldn't I be able to run (& sell) programs
linked on the previous (or 2nd previous) version of operating system
and compiler?

Or is this a bug in VAX C 2.2?

Thanks,
-Joshua Marantz
Viewlogic Systems, Inc.
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