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Re: Process command lines for Cygwin processes no longer viewable in Windows task manager as of Cygwin 1.7.21
- From: Tom Honermann <thonermann at coverity dot com>
- To: <cygwin at cygwin dot com>
- Date: Thu, 25 Jul 2013 10:19:16 -0400
- Subject: Re: Process command lines for Cygwin processes no longer viewable in Windows task manager as of Cygwin 1.7.21
- References: <51F08F9D dot 6020606 at coverity dot com> <20130725082814 dot GA5124 at calimero dot vinschen dot de> <51F1265B dot 1040704 at cwilson dot fastmail dot fm>
On 07/25/2013 09:21 AM, Charles Wilson wrote:
On 7/25/2013 4:28 AM, Corinna Vinschen wrote:
On Jul 24 22:38, Tom Honermann wrote:
My suspicion that this started with 1.7.21 is based on Corinna's
comments in http://cygwin.com/ml/cygwin/2013-07/msg00343.html and
other anecdotal evidence of new problems occurring as of that
This is by design now as described in the aforementioned posting. If
you want to see the command line of a Cygwin application called by
another Cygwin application, see /proc/$pid/cmdline.
Would a patch to restore the previous operation based on a $CYGWIN
variable setting be acceptable?
I think this change should be reverted.
In my case, I need to be able to retrieve the command line for a Cygwin
process from a non-Cygwin process. Reading /proc/$pid/cmdline is not an
option in that case. I depend on the ability to, for example,
differentiate gcc processes that are running based on their command line
Note that strace is currently broken as well. Running it against a
$ strace make | grep "cmd line"
2532 163533 [main] make 6688 child_info_spawn::worker: pid 6688,
prog_arg /usr/bin/g++, cmd line (null))
2207 158021 [main] g++ 6688 child_info_spawn::worker: pid 2180,
prog_arg /usr/lib/gcc/i686-pc-cygwin/4.7.3/cc1plus.exe, cmd line (null))
1292 680192 [main] g++ 6688 child_info_spawn::worker: pid 3604,
cmd line (null))
1274 989508 [main] g++ 6688 child_info_spawn::worker: pid 6176,
prog_arg /usr/lib/gcc/i686-pc-cygwin/4.7.3/collect2.exe, cmd line (null))
2305 385952 [main] collect2 6176 child_info_spawn::worker: pid 6340,
Note that "cmd line" is now (null) in all cases.
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