Re: [Patch] Support UTF-8 scripts

[Pavel Machek <pavel@suse.cz>]

On Po 19-09-05 09:18:33, "Martin v. Löwis" wrote:
> Pavel Machek wrote:
> > Why is binfmt_misc not enough for you?
> 
> For two reasons: for one, it has the overhead of yet another
> exec call. This is different from usages for, say, Java byte
> code or Python byte code, where the registered interpreter already
> is the eventual binary which has to be invoked anyway; for
> a binfmt_misc application, you need an additional wrapper
> which reinterprets the first line, and then invokes the eventual
> interpreter.

Who cares? exec is fast.

> The other reason is availability: as an author of an UTF-8
> script, you would have to communicate to your users that they
> need the right binfmt_misc wrapper installed (which they may
> have to build first). While installing additional stuff to
> run a single program is acceptable for large applications,
> it is likely not for script files. To make the feature useful
> in practice, it must be builtin.

This is distribution problem, not kernel problem. "/bin/ls should be
built into kernel, because otherwise you can't call /bin/ls from
script" is not an argument.

If UTF-8 compatibility is important, distros will get it right. If it
is not, you loose, but at least kernel is not messed up.

								Pavel
-- 
if you have sharp zaurus hardware you don't need... you know my address
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