From: richard@inf.ed.ac.uk (Richard Tobin)
Subject: [TUHS] What did cc -2 do?
Date: Tue, 27 Jun 2017 14:54:06 +0100 (BST) [thread overview]
Message-ID: <20170627135406.21EAD137A42A@macaroni.inf.ed.ac.uk> (raw)
In-Reply-To: Random832's message of Sat, 24 Jun 2017 20:50:51 -0400
> Browsing the source for "cc" in v6 and v7, if invoked with -2 would
> replace crt0.o with crt2.o. If the -2 were followed by another character
> (probably intended to be -20), it would use crt20.o and use -l2 instead
> of -lc.
>
> These options seem to be undocumented, and I can't find any source code
> of these libraries or indication as to what the purpose was.
The "scc" man page for System V may be enlightening, as it mentions
similarly-named files:
NAME
scc - C compiler for stand-alone programs
SYNOPSIS
scc [ +[ lib ] ] [ option ] ... [ file ] ...
DESCRIPTION
Scc prepares the named files for stand-alone execution.
[...]
FILES
/lib/crt2.o execution start-off
/usr/lib/lib2.a stand-alone library
/usr/lib/lib2A.a +A configuration library
/usr/lib/lib2B.a +B configuration library
-- Richard
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.
next reply other threads:[~2017-06-27 13:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 13:54 Richard Tobin [this message]
2017-06-27 17:35 ` Random832
-- strict thread matches above, loose matches on Subject: below --
2017-06-25 0:50 Random832
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