On Wed, 22 Mar 2006 07:53:24 -0500, john stephens <[EMAIL PROTECTED]> wrote: >A couple of questions. What is the purpose of the pre-link steps and under >what conditions (if any) are they required / optional?
Prelink is used to process side decks when you do DLL work. . What I gave you was a cutdown of our standard job and the prelinker is in there because if we turned the DLL options on it would be necessary. More or less. Don't worry about it. You may be able to get away without prelinking. Suck it and see. However if you have problems better put the prelink step back in. > >I would prefer to have the stub program be in assembler. Can I assume that >standard rules apply (ie. loading parm list at R1 and BALR R14,R15 or BASSM >R14,R15)? > You **CAN'T** write the wrapper in Assembler. This is because of Language Environment constraints. <immensely simplifed> Basically under LE you have "proper" LE programs and ordinary OS linkage programs. The LE programs have extra register conventions - I think R11 has to point to a control block or summat Roughly: LE programs are COBOL or C or PL/I OS programs are assembler LE programs can call LE programs LE programs can call ordinary OS programs OS programs can **not** call LE programs (without risking disaster) "CALL" here refers to COBOL CALL, C function call, and most legal ways of transferring control in batch Therefore the call COBOL MAINLINE -> COBOL WRAPPER -> C function Is Ok but the call COBOL MAINLINE -> OS assembler wrapper -> C function is not </immensely simplified> There are many qualifications to the above but basically you had better make it a COBOL wrapper if you want it to work. If you insist on assembler I can't help. You can do DLLs in OS batch as well but as I said that is a different process, we can go into it if you want. I suggest that if you do this you isolate DLLs in one load library and keep ordinary load modules in another and don't mix them. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
