OpenIndiana Distribution

If one calls gdb from the shell the 32bit gdb is ran and fails to load the binary to debug.

larcher@na75:> file demo 
demo:        ELF 64-bit LSB executable AMD64 Version 1, dynamically linked, not stripped

larcher@na75:> gdb demo
GNU gdb (GDB) 7.6.2
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying" 
and "show warranty" for details.
This GDB was configured as "i386-pc-solaris2.11".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /local/larcher/Workspace/dolfin-hpc/bench/fem/Assembler/demo...done.
(gdb) run
Starting program: /local/larcher/Workspace/dolfin-hpc/bench/fem/Assembler/demo 
procfs:3974 -- process not stopped.
procfs: ...giving up...
(gdb) q
A debugging session is active.

    Inferior 1 [process 23674] will be killed.

The 64bit gdb has to be called explicitely which may be confusing:

larcher@na75:> /usr/bin/amd64/gdb demo
GNU gdb (GDB) 7.6.2
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying" 
and "show warranty" for details.
This GDB was configured as "i386-pc-solaris2.11".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /local/larcher/Workspace/dolfin-hpc/bench/fem/Assembler/demo...done.
(gdb) run
Starting program: /local/larcher/Workspace/dolfin-hpc/bench/fem/Assembler/demo 
[Thread debugging using libthread_db enabled]
 PoissonP1
 Assembling (rank 0 ) matrix over cells (finished).
 Number of degrees of freedom: 16641
 Elapsed time: 0.26000000 seconds
 PoissonP2
 Assembling (rank 0 ) matrix over cells (finished).
 Number of degrees of freedom: 66049
 Elapsed time: 0.60000000 seconds
 PoissonP3
 Assembling (rank 0 ) matrix over cells (finished).
 Number of degrees of freedom: 148225
 Elapsed time: 1.07000000 seconds
...
...