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Date: Fri, 7 Feb 2014 19:23:11 +0400
From: Andrey Repin <anrdaemon@yandex.ru>
Reply-To: Andrey Repin <cygwin@cygwin.com>
Message-ID: <18810323152.20140207192311@mtu-net.ru>
To: Steven Bardwell <sbardwell@lbmsys.com>, cygwin@cygwin.com
Subject: Re: using spawn functions to avoid fork() errors -- FIXED
In-Reply-To: <029e01cf2409$2cbc7e90$86357bb0$@lbmsys.com>
References: <029e01cf2409$2cbc7e90$86357bb0$@lbmsys.com>
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Greetings, Steven Bardwell!

> I found  the problem that was causing the failure of child creation logic
> on the 64-bit install but not on the 32-bit version:

> in an effort to make the output from 'ps' more useful, my application was
> over-writing the contents of argv[1] in the main process. This trick works
> fine in many flavors of Unix (including Interix and Linux and 32-bit
> Cygwin).

CYGWIN=wincmdln
?

> However, in Cygwin 64-bit, it somehow corrupts things such that the
> child process created by fork() or spawnv() failed to load correctly. After
> removing that 'feature,' both spawnv() as well as the original fork() logic
> work without any problem.

Could still be NULL termination problem. If the strings you manipulating are
in UTF16, you need TWO \0 to terminate the string.


--
WBR,
Andrey Repin (anrdaemon@yandex.ru) 07.02.2014, <19:21>

Sorry for my terrible english...


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