[resend] Allow use of MAP_TRYFIXED for better mmap()
speeddymon at yahoo.com
Fri Aug 29 17:48:58 CDT 2003
--- Todd Vierling <tv at pobox.com> wrote:
> On Thu, 28 Aug 2003, Alexandre Julliard wrote:
> : > I have a feeling we're just on different mental wavelengths here.
> : > MAP_TRYFIXED is not an optional feature. If the #define exists, the
> : > exists -- for the OS version used to compile, and all later versions.
> : You are still thinking only about source distributions. The problem is
> : when you want to ship a binary: the only way to build a binary that
> : works for everybody is to build it on an old OS version;
> Yes, that's right. This is not a problem, as 99% of Wine users on NetBSD
> are building from source. The very small remainder of prebuilt-binary
> can easily be told to ensure that the OS version is up-to-date (since there
> are security fixes that necessitate this anyway).
> : With a run-time check you don't have to sacrifice anything,
> You have to bend over backwards to do the runtime check, and you sacrifice
> *maintainability* with the extra normally-dead code added to Wine. I don't
> see a need to jump through extra hoops in this case.
Shouldnt something like this added to the loader work for a runtime check?
(note im not using proper function names or anything, just an example)
if (running_on_netbsd && version >= first_version_that_supports_MAP_TRYFIXED)
Im no expert on NetBSD but I would think a simple check like that would
suffice, and since it is in the loader, it would make it a runtime check, no?
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