[Info-vax] Text processing examples with Fortran requested
glen herrmannsfeldt
gah at ugcs.caltech.edu
Wed Nov 18 20:40:53 EST 2009
Bob Koehler <koehler at eisner.nospam.encompasserve.org> wrote:
(snip, I wrote)
>> COMMON block names and subroutine/function names are both
>> external names. An initialized COMMON looks the same to the
>> linker as does a subroutine or functions (SD in the object module).
> That's system specific. And true on the IBM 360 I used, but not
> on VMS.
Yes that was a S/360 (and successor) comment. I presume VMS
object files don't have SD either. SD is Section Definition,
indicating the name of a CSECT (control section). Uninitialized
COMMON is CM, where initialized COMMON is SD. There are also
ones for ENTRY points and for external references.
-- glen
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