Debugger in 3.4.0

Wed Feb 28 16:01:21 GMT 2007

On Wednesday 28 February 2007, Vladimir Prus wrote:
> Leon,
> I'm afraid that due to large email volume here,  I forgot what
> are "the problems" you refer to, so cannot tell if they
> are likely to be caused by gdb 6.5. I generally suggest 6.6, but 6.5 should
> be usable too.
Thanks, Vladimir.

The most heavy problem I have is that each time I press "step" button or 
debugger stops at BP I receive the error message "Debugger reported the 
following error: Previous frame inner to this frame (corrupt stack?) ". Below 
is the debugger window output in "Show all" mode:

---------------------------------------------------------------------------

/opt/rtems/bin/powerpc-rtems-gdb /Development/Projects/testvw/debug/./src/testvw --interpreter=mi2 -quiet(gdb) set print static-members on
set print static-members on
^done
(gdb) set width 0
set width 0
^done
(gdb) set height 0
set height 0
^done
(gdb) set stop-on-solib-events 1
set stop-on-solib-events 1
^done
(gdb) handle SIG32 pass nostop noprint
handle SIG32 pass nostop noprint
Signal Stop	Print	Pass to program	Description
SIG32 No	No	Yes		Real-time event 32
^done
(gdb) handle SIG41 pass nostop noprint
handle SIG41 pass nostop noprint
Signal Stop	Print	Pass to program	Description
SIG41 No	No	Yes		Real-time event 41
^done
(gdb) handle SIG42 pass nostop noprint
handle SIG42 pass nostop noprint
Signal Stop	Print	Pass to program	Description
SIG42 No	No	Yes		Real-time event 42
^done
(gdb) handle SIG43 pass nostop noprint
handle SIG43 pass nostop noprint
Signal Stop	Print	Pass to program	Description
SIG43 No	No	Yes		Real-time event 43
^done
(gdb) set print asm-demangle on
set print asm-demangle on
^done
(gdb) set output-radix 10
set output-radix 10
Output radix now set to decimal 10, hex a, octal 12.
^done
(gdb) cd /Development/Projects/testvw/debug/./src
cd /Development/Projects/testvw/debug/./src
Working directory /Development/Projects/testvw/debug/src.
^done
(gdb) -break-insert /opt/rtems-4.7/rtems-src-4.7brunch/cpukit/libcsupport/src/open.c:103
No source file 
named /opt/rtems-4.7/rtems-src-4.7brunch/cpukit/libcsupport/src/open.c.
^done
(gdb) -break-insert /opt/rtems-4.7/rtems-src-4.7brunch/c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c:94
No source file 
named /opt/rtems-4.7/rtems-src-4.7brunch/c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c.
^done
(gdb) -break-insert /Development/Projects/testvw/src/testvw.cpp:19
No source file named /Development/Projects/testvw/src/testvw.cpp.
^done
(gdb) tty /dev/pts/12
tty /dev/pts/12
^done
(gdb) 
source /Development/Projects/testvw/src/.gdbinit
source /Development/Projects/testvw/src/.gdbinit
Setting up for Embedded Planet 8248e Motorola G2_LE chips with 
IMMR=0xff000000.
The target architecture is assumed to be rs6000:rs2
The target is assumed to be big endian
_Thread_Idle_body (ignored=0x0) 
at /opt/rtems/rtems-src/c/src/lib/libbsp/powerpc/FDR_8247/startup/bspstart.c:268
268	*/ }
warning: no shared library support for this OS / ABI
current endian: big (unchanged)
pvr: 0x80822014
PARTNUM:$1 = 0xc10
MASKNUM:$2 = 0x0
REV_NUM:$3 = 0xe1
Testing memory (8bit):	Success.
Testing memory (16bit):	Success.
Endianness (32-bit BE):	Success.
Loading section .text, size 0x43cb8 lma 0x10000
Loading section .gcc_except_table, size 0x230 lma 0x53cb8
Loading section .got2, size 0x4a0 lma 0x53ee8
Loading section .fixup, size 0x798 lma 0x54388
Loading section .data, size 0x1a08 lma 0x5a300
Start address 0x10000, load size 288040
Transfer rate: 119129 bits/sec, 508 bytes/write.
^done
(gdb) -break-insert /Development/Projects/testvw/src/main.cpp:179
During symbol reading, Location list used without specifying the CU base 
address..
^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x0001043c",func="main_task",file="/Development/Projects/testvw/src/main.cpp",fullname="/Development/Projects/testvw/src/main.cpp",line="179",times="0"}
(gdb) -break-condition 1 
^done
(gdb) -break-after 1 0
^done
(gdb) -break-enable 1
^done
(gdb) -break-insert /Development/Projects/testvw/src/main.cpp:178
^done,bkpt={number="2",type="breakpoint",disp="keep",enabled="y",addr="0x0001043c",func="main_task",file="/Development/Projects/testvw/src/main.cpp",fullname="/Development/Projects/testvw/src/main.cpp",line="178",times="0"}
(gdb) -break-condition 2 
^done
(gdb) -break-after 2 0
^done
(gdb) -break-enable 2
^done
(gdb) -break-delete 1
^done
(gdb) -break-delete 2
^done
(gdb) -break-insert /Development/Projects/testvw/src/main.cpp:181
^done,bkpt={number="3",type="breakpoint",disp="keep",enabled="y",addr="0x0001045c",func="main_task",file="/Development/Projects/testvw/src/main.cpp",fullname="/Development/Projects/testvw/src/main.cpp",line="181",times="0"}
(gdb) -break-condition 3 
^done
(gdb) -break-after 3 0
^done
(gdb) -break-enable 3
^done
(gdb) -exec-continue
^running
Current language: auto; currently c++
*stopped,reason="breakpoint-hit",bkptno="3",thread-id="0",frame={addr="0x0001045c",func="main_task",args=[],file="/Development/Projects/testvw/src/main.cpp",fullname="/Development/Projects/testvw/src/main.cpp",line="181"}
(gdb) -file-list-exec-source-file
^done,line="181",file="/Development/Projects/testvw/src/main.cpp",fullname="/Development/Projects/testvw/src/main.cpp"
(gdb) -break-list
^done,BreakpointTable={nr_rows="1",nr_cols="6",hdr=[{width="3",alignment="-1",col_name="number",colhdr="Num"},
{width="14",alignment="-1",col_name="type",colhdr="Type"},
{width="4",alignment="-1",col_name="disp",colhdr="Disp"},
{width="3",alignment="-1",col_name="enabled",colhdr="Enb"},
{width="10",alignment="-1",col_name="addr",colhdr="Address"},
{width="40",alignment="2",col_name="what",colhdr="What"}],body=[bkpt={number="3",type="breakpoint",disp="keep",enabled="y",addr="0x0001045c",func="main_task",file="/Development/Projects/testvw/src/main.cpp",fullname="/Development/Projects/testvw/src/main.cpp",line="181",times="1"}]}
(gdb) -stack-list-arguments 0 0 0
^done,stack-args=[frame={level="0",args=[]}]
(gdb) -stack-list-locals 0
^done,locals=[]
(gdb) -thread-list-ids
warning: RMT ERROR : failed to get remote thread list.
^done,thread-ids={},number-of-threads="0"
(gdb) info frame
info frame
Stack level 0, frame at 0x465670:
 pc = 0x1045c in main_task (/Development/Projects/testvw/src/main.cpp:181); 
saved pc 0x3a81c
 called by frame at 0x465698
 source language c++.
 Arglist at 0x465638, args: 
 Locals at 0x465638, Previous frame's sp is 0x465670
 Saved registers:
 r28 at 0x465660, r29 at 0x465664, r30 at 0x465668, r31 at 0x46566c, pc at 
0x465674, lr at 0x465674
^done
(gdb) -stack-info-depth 6
Previous frame inner to this frame (corrupt stack?)
^error,msg="Previous frame inner to this frame (corrupt stack?)"
(gdb) -var-update *
^done,changelist=[]

---------------------------------------------------------------------------

Plane gdb and DDD do not issue any error messages and work fine.

Any ideas how to avoid this? I am ready for tests...:-))

-- 
Leon 