Problems printing variables in sparc-rtems4.11-gdb 7.6

[Sebastian Huber]

On 2014-06-10 01:15, Joel Sherrill wrote:
> On 6/9/2014 5:57 AM, Daniel Hellstrom wrote:
>> >Hi,
>> >
>> >Have you seen a fix or update on this issue?
> I have gdb 7.7 on Centos 6.x built using the RSB and it handles
> your case fine. I don't recall seeing those type of messages
> from it.

With GDB 7.7.1 and GCC 4.8.3 it doesn't work for me:

GNU gdb (GDB) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=x86_64-unknown-linux-gnu 
--target=sparc-rtems4.11".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ticker.exe...done.
Connected to the simulator.
Breakpoint 1 at 0x2005b10: file 
/home/sh/rtems-4.11/c/src/../../cpukit/libcsupport/src/__assert.c, line 38.
Breakpoint 2 at 0x201c244: file 
/home/sh/rtems-4.11/c/src/../../cpukit/score/src/interr.c, line 39.
Breakpoint 3 at 0x2001160: file 
/home/sh/rtems-4.11/c/src/lib/libbsp/sparc/erc32/../../sparc/shared/start/start.S, 
line 379.
(gdb) b rtems_clock_tick
Breakpoint 4 at 0x2010ba4: file 
/home/sh/rtems-4.11/c/src/../../cpukit/rtems/src/clocktick.c, line 30.
(gdb) r
Starting program: 
/scratch/git-build/b-sis/sparc-rtems4.11/c/sis/testsuites/samples/ticker/ticker.exe 


Breakpoint 4, rtems_clock_tick () at 
/home/sh/rtems-4.11/c/src/../../cpukit/rtems/src/clocktick.c:30
30        _Thread_Disable_dispatch();
(gdb) where
#0  rtems_clock_tick () at 
/home/sh/rtems-4.11/c/src/../../cpukit/rtems/src/clocktick.c:30
#1  0x02002bf4 in Clock_isr (vector=<error reading variable: can't compute CFA 
for this frame>) at 
/home/sh/rtems-4.11/c/src/lib/libbsp/sparc/erc32/clock/../../../shared/clockdrv_shell.h:115
#2  0x020437a4 in dont_fix_pil2 () at 
/home/sh/rtems-4.11/c/src/lib/libbsp/sparc/erc32/../../sparc/shared/irq_asm.S:457
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

See also:

https://sourceware.org/bugzilla/show_bug.cgi?id=16215

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
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