Groups > comp.os.os2.programmer.misc > #1530

Re: CPU Type field in LX header

From	David Parsons <dwparsons@t-online.de>
Newsgroups	comp.os.os2.programmer.misc
Subject	Re: CPU Type field in LX header
Date	2016-10-23 18:20 +0200
Organization	A noiseless patient Spider
Message-ID	<nuio0m$cse$1@dont-email.me> (permalink)
References	<nug59g$g0d$1@dont-email.me> <nui51o$td2$1@solani.org>

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I have version 10 of that spec from 1996 and that is what it seems like to me.
I have read lots of switches for the various linkers we have and found nothing 
to imply that any of them use the -march setting.

It looks as though I am out of luck unless anyone knows of another way to tell 
how an exe or dll was compiled.

Dave P.

On 23-10-16 12:56, Lars Erdmann wrote:
> I am fairly sure that the linker is supposed to correctly set this field.
> But I would not be surprised if any linker ever written for OS/2 just ignores to
> properly set this field.
>
> Additionally the LX spec only defines these values for CPU type:
>
>      01H - 80286 or upwardly compatible CPU is required to execute this module.
>      02H - 80386 or upwardly compatible CPU is required to execute this module.
>      03H - 80486 or upwardly compatible CPU is required to execute this module.
>
> That said, a 16-bit OS/2 linker will likely set this field to 01h whereas a
> 32-bit OS/2 linker will set it to 02h just to indicate that a
> 32-bit CPU is needed as a 16-bit CPU is not enough for OS/2 >= version 2.0.
>
> Anything higher than a 486 is therefore undefined in the standard.
> I don't think you can rely on anything set in this field.
>
>
> Lars
>

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Thread

CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-22 18:49 +0200
  Re: CPU Type field in LX header "Doug Bissett" <dougb007!SPAM@telus.net> - 2016-10-22 17:32 +0000
    Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-23 18:35 +0200
      Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-24 11:20 +0200
      Re: CPU Type field in LX header "Doug Bissett" <dougb007!SPAM@telus.net> - 2016-10-25 16:50 +0000
        Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-26 17:37 +0200
          Re: CPU Type field in LX header "Doug Bissett" <dougb007!SPAM@telus.net> - 2016-10-26 19:15 +0000
            Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-29 15:41 +0200
              Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-29 11:43 -0700
                Re: CPU Type field in LX header "Steven Levine" <steve53@nomail.earthlink.net> - 2016-11-09 19:36 -0600
                Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-11-10 08:52 -0800
                Re: CPU Type field in LX header "Steven Levine" <steve53@nomail.earthlink.net> - 2016-11-11 10:41 -0600
                Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-11-11 17:04 -0800
              Re: CPU Type field in LX header "Doug Bissett" <dougb007!SPAM@telus.net> - 2016-10-29 22:22 +0000
                Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-11-01 17:47 +0100
                Re: CPU Type field in LX header "Doug Bissett" <dougb007!SPAM@telus.net> - 2016-11-01 19:18 +0000
  Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-22 10:48 -0700
    Re: CPU Type field in LX header Marcel Mueller <news.5.maazl@spamgourmet.org> - 2016-10-22 21:58 +0200
      Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-22 23:47 +0200
        Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-22 20:05 -0700
          Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-23 11:08 +0200
            Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-23 10:33 -0700
              Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-24 12:36 +0200
                Re: CPU Type field in LX header Peter Flass <peter_flass@yahoo.com> - 2016-10-25 16:53 -0400
                Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-27 10:49 +0200
                Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-28 21:14 -0700
                Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-31 14:14 +0100
                Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-31 07:59 -0700
                Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-11-01 14:46 +0100
                Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-28 21:07 -0700
      Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-22 20:00 -0700
        Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-23 10:46 +0200
          Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-23 10:58 -0700
            Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-24 13:04 +0200
              Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-28 21:28 -0700
                Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-31 14:49 +0100
            Re: CPU Type field in LX header "A.D. Fundum" <what.ever@neverm.ind> - 2016-10-24 13:24 +0200
    Re: CPU Type field in LX header Paul Smedley <paul@smedley.id.au> - 2016-10-23 11:49 +1030
      Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-22 20:11 -0700
        Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-23 11:09 -0700
          Re: CPU Type field in LX header "Steven Levine" <steve53@nomail.earthlink.net> - 2016-10-26 15:44 -0500
            Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-28 20:56 -0700
              Re: CPU Type field in LX header "Steven Levine" <steve53@nomail.earthlink.net> - 2016-11-09 19:38 -0600
        Re: CPU Type field in LX header Paul Smedley <paul@smedley.id.au> - 2016-10-27 19:30 +1030
          Re: CPU Type field in LX header Paul Smedley <paul@smedley.id.au> - 2016-10-29 11:39 +1030
            Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-28 20:54 -0700
    Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-23 18:45 +0200
      Re: CPU Type field in LX header Marcel Mueller <news.5.maazl@spamgourmet.org> - 2016-10-23 19:32 +0200
      Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-23 11:06 -0700
    Re: CPU Type field in LX header "Steven Levine" <steve53@nomail.earthlink.net> - 2016-10-26 13:44 -0500
      Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-29 14:37 +0200
        Re: CPU Type field in LX header Paul Smedley <paul@smedley.id.au> - 2016-10-30 12:13 +1030
          Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-30 08:57 +0100
        Re: CPU Type field in LX header "Steven Levine" <steve53@nomail.earthlink.net> - 2016-11-09 19:54 -0600
          Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-11-12 14:48 +0100
  Re: CPU Type field in LX header Dave Yeo <dave.r.yeo@gmail.com> - 2016-10-22 11:02 -0700
  Re: CPU Type field in LX header Marcel Mueller <news.5.maazl@spamgourmet.org> - 2016-10-22 21:54 +0200
  Re: CPU Type field in LX header Lars Erdmann <lars.erdmann@arcor.de> - 2016-10-23 12:56 +0200
    Re: CPU Type field in LX header David Parsons <dwparsons@t-online.de> - 2016-10-23 18:20 +0200
      Re: CPU Type field in LX header Peter Flass <peter_flass@yahoo.com> - 2016-10-23 15:11 -0400

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