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Date: Fri, 24 Oct 2014 07:57:23 -0600
From: Eric Blake <eblake AT redhat DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: Why can't run.exe execute a shebang script directly?
References: <1414155946 DOT 62587 DOT YahooMailNeo AT web162803 DOT mail DOT bf1 DOT yahoo DOT com> <20141024135339 DOT GM20607 AT calimero DOT vinschen DOT de>
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On 10/24/2014 07:53 AM, Corinna Vinschen wrote:
> On Oct 24 06:05, John Wiersba wrote:
>> I would have thought cygwin1.dll contains the code necessary to do this,=
 like the linux kernel does.  Can it be added to the dll or does it have to=
 be added to each executable individually, such as bash.exe, run.exe, etc.?
>>
>>   bash$ /bin/run ./try
>>   run FATAL: Could not start D:\ftp\try
>=20
> run.exe doesn't start the executable via a Cygwin function, but via a
> Windows call.  There's no chance for the DLL to handle shebangs.

Of course, if you wanted to be nice, you could write a patch to run.exe
that teaches it to read() the contents of a file that it is about to
execute, and if it starts with a shebang, run the interpreter directly
instead of handing things off to the Windows call (and maybe make this
mode optional, requiring a command line option to turn on?).  This is
open source, after all.

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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