Re: Add DragonFly BSD port
- From: Robin Hahling <robin.hahling@xxxxxxxxxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Sun, 05 Oct 2014 19:05:16 +0200
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On Friday 03 October 2014 14.04:42 Mike Pall wrote:
> Robin Hahling wrote:
> > As an attachment, you will find a patch that adds DragonFly BSD support.
> > The patch is from John Marino and has been in use for quite some time now
> > in official DragonFly BSD packages without any user reporting issues.
> I'm pretty sure the code doesn't work in the general case with a
> fragmented memory map. It attempts to do a linear scan, but it
> only performs a single retry.
>
> Please refactor this to use the already existing code for mmap()
> allocation hinting. This already includes a special case for a
> near-exhaustive linear scan.
You can find attached a new patch which uses the existing code for mmap.
As a simple test, I ran the scimark test[1]. Please, feel free to ask if I
need to do more exhaustive testing.
> > However, it seems to me that an adjustment should be made to
> > src/lj_gdbjit.c and src/jit/bcsave.lua. "dragonfly" should be need in
> > map_os in the latter and I'm not sure about .eosabit in the former.
>
> You can find out by looking at the header of any binary on the
> target OS.
DragonFly actually uses UNIX/SYS V. and thus the version number for this is 0.
I thus changed the sources to make it clear even though the default case is 0.
Cheers,
Robin
[1]: http://luajit.org/download/scimark.lua
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