[GHC] #9143: feature request: way to set actual program argv

[GHC]

#9143: feature request: way to set actual program argv
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        Reporter:  joeyhess          |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Runtime System    |                 Version:  7.8.2
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by joeyhess):

 This stackoverflow answer gives a way to do it without ghc changes and
 without needing unusual linker options:
 http://stackoverflow.com/questions/26657699/how-to-change-the-name-of-a
 -haskell-process-under-linux
 Still, that seems quite a hack, maybe linux/glibc-specific also?

 I continue to feel that, since changing the name displayed by ps for a
 program is easy to accomplish in most any other language, and many unix
 programs use the ability to do so, it should also be made reasonably easy
 to do in haskell.

 Often, a program will want to change argv[0] but not the thread name. For
 example, ssh will set the argv[0] to various things like "sshd: joey" but
 leaves the thread name "sshd". So, an interface to prctl should be kept
 separate from an interface to argv[0].

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9143#comment:4>
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