nick hates software: gdb

• From: Nicholas Clark
  Date: 10:21 on 05 May 2005
  Subject: gdb
  
  #0  0xb73a1cef in raise () from /lib/tls/libc.so.6
  (gdb) Hangup detected on fd 0
  error detected on stdin
  
  Any sensible Unix program accepts commands on stdin and just fucking works.
  
  Gnu's Not Unix.
  
  Crap.
  
  Nicholas Clark
  
  

• From: Arthur Bergman
  Date: 11:34 on 05 May 2005
  Subject: Re: gdb
  
  lib/tls is a special deserving piece of hate in itself :-)
  
  On 5 May 2005, at 10:21, Nicholas Clark wrote:
  
  > #0  0xb73a1cef in raise () from /lib/tls/libc.so.6
  > (gdb) Hangup detected on fd 0
  > error detected on stdin
  >
  > Any sensible Unix program accepts commands on stdin and just fucking 
  > works.
  >
  > Gnu's Not Unix.
  >
  > Crap.
  >
  > Nicholas Clark
  
  
  

• From: Simon Wistow
  Date: 11:43 on 05 May 2005
  Subject: Re: gdb
  
  > Any sensible Unix program accepts commands on stdin and just fucking
  > works.
  
  And can you actually supply arguments to the program you're debugging 
  via the command line?
  
  as in
  
  	% gdb -q ./foo some args and a -f lag
  
  or am I missing something obvious?
  
  
  
  

• From: Nicholas Clark
  Date: 11:48 on 05 May 2005
  Subject: Re: gdb
  
  On Thu, May 05, 2005 at 11:43:31AM +0100, Simon Wistow wrote:
  > > Any sensible Unix program accepts commands on stdin and just fucking
  > > works.
  > 
  > And can you actually supply arguments to the program you're debugging 
  > via the command line?
  > 
  > as in
  > 
  > 	% gdb -q ./foo some args and a -f lag
  > 
  > or am I missing something obvious?
  
  It would be off topic to be helpful. However, I think a clue that in itself
  demonstrates some hatefulness might be acceptable:
  
  $ /bin/false >/dev/null; echo $?
  1
  $ /bin/false --help >/dev/null; echo $?
  0
  
  Nicholas Clark
  
  

• From: peter (Peter da Silva)
  Date: 13:13 on 05 May 2005
  Subject: Re: gdb
  
  > $ /bin/false >/dev/null; echo $?
  > 1
  > $ /bin/false --help >/dev/null; echo $?
  > 0
  
  That sound you heard was my brain exploding.
  
  
  

• From: Nicholas Clark
  Date: 11:14 on 28 Jun 2005
  Subject: gdb
  
  $ PERL_DESTRUCT_LEVEL=2 gdb --args  ./miniperl  -Ilib -MExporter -e0
  GNU gdb 6.1.1 [FreeBSD]
  Copyright 2004 Free Software Foundation, Inc.
  GDB is free software, covered by the GNU General Public License, and you are
  welcome to change it and/or distribute copies of it under certain conditions.
  Type "show copying" to see the conditions.
  There is absolutely no warranty for GDB.  Type "show warranty" for details.
  This GDB was configured as "i386-marcel-freebsd"...
  (gdb) r
  Starting program: /home/nick/Ponie/ponie01/perl/miniperl -Ilib -MExporter -e0
  Cannot find thread 2: Thread ID=1, generic error
  
  
  What? Where do you think it is? Where did you last see it? Have you looked
  behind the sofa?
  
  With tools like these, who needs bugs?
  
  Nicholas Clark
  
  

• From: Nicholas Clark
  Date: 16:52 on 27 Feb 2008
  Subject: gdb
  
  (gdb) p *(struct perl_memory_debug_header **) 0x100813c10
  $40 = (struct perl_memory_debug_header *) 0x100502060
  (gdb) watch *(struct perl_memory_debug_header **) 0x100813c10
  Hardware watchpoint 6: *(struct perl_memory_debug_header **) 4303436816
  (gdb) c
  Continuing.
  
  Breakpoint 1, Perl_safesysfree (where=0x1005020a0) at util.c:248
  248                     Perl_croak_nocontext("panic: bad free");
  (gdb) p *(struct perl_memory_debug_header **) 0x100813c10
  $41 = (struct perl_memory_debug_header *) 0x0
  
  
  Um. It changed. While you weren't watching. Dear gdb, did you nip out for
  a fag break when you were supposed to be on duty?
  
  Hatefully yours,
  
  Nicholas Clark
  
  
  

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