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Subject: Debugging sub-processes with gdb
From: ht AT inf DOT ed DOT ac DOT uk (Henry S. Thompson)
Date: Wed, 14 May 2014 16:10:36 +0100
Message-ID: <f5boaz0e6qb.fsf@troutbeck.inf.ed.ac.uk>
User-Agent: Gnus/5.101 (Gnus v5.10.10) XEmacs/21.5-b33 (linux)
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I'm trying to debug a problem with xemacs that involves the child
process forked when you execute M-x shell.

None of the mechanisms in the gdb documentation for choosing to step
into the child process (instead of the parent) after a fork() seem to
work for me.  That is, in particular, setting follow-for-mode to child
still leaves me in the parent after stepping over a fork().

Setting detach-on-fork to 'off' also seems to have no effect.

Have I misunderstood something, or does this aspect of gdb just not
work under cygwin (x86_64, 1.7.29-2)?

Thanks,

ht
-- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 650-4587, e-mail: ht AT inf DOT ed DOT ac DOT uk
                       URL: http://www.ltg.ed.ac.uk/~ht/
 [mail from me _always_ has a .sig like this -- mail without it is forged spam]

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