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attach u/i oddity
- From: Doug Evans <dje at google dot com>
- To: gdb at sourceware dot org
- Date: Sun, 9 Oct 2011 14:36:16 -0700
- Subject: attach u/i oddity
I know why this happens, but as a user it's not intuitive: if gdb
could figure out the program (and arch) the first time, why can't it
the second time?
bash$ gdb
(gdb) attach 1234 # a 32 bit program: forever.x32
(gdb) detach
(gdb) attach 1235 # a 64 bit program: forever.x64
-->
Attaching to program: /home/dje/src/play/forever.x32, process 31621
warning: Selected architecture i386 is not compatible with reported
target architecture i386:x86-64
warning: Architecture rejected target-supplied description
Reading symbols from /usr/grte/v2/lib/ld-linux.so.2...(no debugging
symbols found)...done.
Loaded symbols for /usr/grte/v2/lib/ld-linux.so.2
0x46403fe0 in ?? ()
(gdb)
The user never specified forever.x32 as the program to debug, gdb was
being clever.
However, if it's going to be clever the first time, it's a bug (from
the user's perspective) to not be clever the second time too (IMO).
Comments?