bug-gnulib@gnu.org mirror (unofficial)
 help / color / mirror / Atom feed
* How to fix code blocks?
@ 2023-01-02 14:00 Marc Nieper-Wißkirchen
  2023-01-02 14:42 ` Bruno Haible
  0 siblings, 1 reply; 3+ messages in thread
From: Marc Nieper-Wißkirchen @ 2023-01-02 14:00 UTC (permalink / raw)
  To: bug-gnulib@gnu.org List

For purposes of dynamically calling code, I need the following layout
of the assembled code:

0x00: 16-byte header
0x10: entry point #1
0x20: entry point #2

I want to use the new align/skip instructions for this.  My code
generator currently looks like this:

        align (16)
header:
        skip (16)
entry1:
        jump label1
        align (16)
entry2:
       ...
label1:
       jump entry2 ; or some other code

However, with setup, GNU lightning often "optimizes" the block order
so that entry1 is no longer at the correct offset.  How can I reliably
prohibit this?  Putting skip (1) after the second align (16) seems to
help in my experiments.

Thanks,

Marc


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: How to fix code blocks?
  2023-01-02 14:00 How to fix code blocks? Marc Nieper-Wißkirchen
@ 2023-01-02 14:42 ` Bruno Haible
  2023-01-02 14:46   ` Marc Nieper-Wißkirchen
  0 siblings, 1 reply; 3+ messages in thread
From: Bruno Haible @ 2023-01-02 14:42 UTC (permalink / raw)
  To: bug-gnulib; +Cc: Marc Nieper-Wißkirchen

Hi Marc,

> For purposes of dynamically calling code, I need the following layout
> of the assembled code:
> 
> 0x00: 16-byte header
> 0x10: entry point #1
> 0x20: entry point #2

Happy new year. But this topic does not fit bug-gnulib. Maybe you sent it
to the wrong list?

Bruno





^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: How to fix code blocks?
  2023-01-02 14:42 ` Bruno Haible
@ 2023-01-02 14:46   ` Marc Nieper-Wißkirchen
  0 siblings, 0 replies; 3+ messages in thread
From: Marc Nieper-Wißkirchen @ 2023-01-02 14:46 UTC (permalink / raw)
  To: Bruno Haible; +Cc: bug-gnulib, Marc Nieper-Wißkirchen

Happy new year, Bruno!

Yes, sorry, wrong list! :)

Marc

Am Mo., 2. Jan. 2023 um 15:42 Uhr schrieb Bruno Haible <bruno@clisp.org>:
>
> Hi Marc,
>
> > For purposes of dynamically calling code, I need the following layout
> > of the assembled code:
> >
> > 0x00: 16-byte header
> > 0x10: entry point #1
> > 0x20: entry point #2
>
> Happy new year. But this topic does not fit bug-gnulib. Maybe you sent it
> to the wrong list?
>
> Bruno
>
>
>


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-01-02 14:47 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-01-02 14:00 How to fix code blocks? Marc Nieper-Wißkirchen
2023-01-02 14:42 ` Bruno Haible
2023-01-02 14:46   ` Marc Nieper-Wißkirchen

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).