[9fans] Finding the object suffix

[9fans] Finding the object suffix

[Nils M Holm]

I am currently writing an rc script that needs to know the
object suffix of the architecture it is running on. Would
the following code reliably return this suffix, or is there
a better way?

grep '^O=.$' /$objtype/mkfile | sed -e 's/O=//'

Thanks,

Nils.

-- 
Nils M Holm <nmh@t3x.org> -- http://www.t3x.org/nmh/

Re: [9fans] Finding the object suffix

[David Presotto]

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first of all, $objtype is the target to compile for, not the type 
of the local cpu.  You at least need to look at $cputype.

The following would do it with one less process:
	sed -n 's/^O=(.*)/\1/p' /$cputype/mkfile

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From: Nils M Holm <nmh@t3x.org>
To: 9fans@cse.psu.edu
Subject: [9fans] Finding the object suffix
Date: Thu, 25 Mar 2004 11:53:55 +0100
Message-ID: <2004032510535500-74837@Symmetry.UUCP>


I am currently writing an rc script that needs to know the
object suffix of the architecture it is running on. Would
the following code reliably return this suffix, or is there
a better way?

grep '^O=.$' /$objtype/mkfile | sed -e 's/O=//'

Thanks,

Nils.

-- 
Nils M Holm <nmh@t3x.org> -- http://www.t3x.org/nmh/

Re: [9fans] Finding the object suffix

[Nils M Holm]

On 2004-03-25, David Presotto wrote:
> first of all, $objtype is the target to compile for, not the type 
> of the local cpu.  You at least need to look at $cputype.

I see. I think my explanation was a bit fuzzy, so I will try
again. My script runs a compiler that compiles to C. It then
has to invoke the proper C compiler and loader to create a
program that can be run in the window the compiler was started
in. I currently use

$O^c -Dplan9 $file.c
$O^l $file.$O

where $O is the object suffix found. I want the compiler driver
to make a good guess on $O, so that the resulting code can run
on both terminals and CPU servers (of course not at the same time
in case the CPU types differ).

> The following would do it with one less process:
> 	sed -n 's/^O=(.*)/\1/p' /$cputype/mkfile

Yes, thanks.

Nils.

-- 
Nils M Holm <nmh@t3x.org> -- http://www.t3x.org/nmh/