Re: Lot of FAILs with gdb.base/structs.exp

[Franck Jullien <franck.jullien@gmail.com>]

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2013/2/13 Sergio Durigan Junior <sergiodj@redhat.com>:
> On Wednesday, February 13 2013, Franck Jullien wrote:
>
>>>> I'm working on OpenRISC GDB 7.5 port. [...]
>
> Ok, sorry, I should have noticed this earlier.  It's hard to help
> without seeing the actual patches, etc.  I looked at the OpenRISC
> website and noticed that they say "...there are still many regression
> failures [with the GDB 7.2 port], which remain to be investigated.", so
> it is really hard to say whether this regression you're seeing is your
> fault or not.
>
> I suggest you either (a) post what you're doing somewhere or (b) contact
> the toolchain development team from the OpenRISC project (best).
>
> Sorry for not being able to help more.
>
> --
> Sergio

The current OpenRISC GDB 7.5 port is here:
https://github.com/openrisc/or1k-src/tree/or1k/gdb

I ported the GDB 7.2 port hosted at opencores.org (the one you took a
look) to our new CGEN based toolchain.
So I part of the development team without knowing that much of GDB :)

Do you have any advice on the investigation method you'd use with a
program exiting like this ?:

.....
[Inferior 1 (process 42000) exited with code 0400]
test_struct.txt:20: Error in sourced command file:
The program being debugged exited while in a function called from GDB.
Evaluation of the expression containing the function
(fun1) will be abandoned.
(gdb) bt
No stack.
(gdb)


Franck.

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Opening log files in .
Test Run By franck on Tue Feb 12 23:53:23 2013
Target is or1k-unknown-elf
Host   is i686-pc-linux-gnu

		=== gdb tests ===

setting trap for SIGTERM to terminated
setting trap for SIGINT to interrupted by user
setting trap for SIGQUIT to interrupted by user
dirlist is /home/franck/openRISC/or1k-src/boards ../../../or1k-src/gdb/testsuite/boards/../boards /usr/local/share/dejagnu/baseboards
pushing config for build, name is centos
dirlist is /home/franck/openRISC/or1k-src/boards ../../../or1k-src/gdb/testsuite/boards/../boards /usr/local/share/dejagnu/baseboards
pushing config for host, name is centos
target list is  "or1k-elf-sim" 
Schedule of variations:
    or1k-elf-sim

target is or1k-elf-sim
Running target or1k-elf-sim
dirlist is /home/franck/openRISC/or1k-src/boards/centos ../../../or1k-src/gdb/testsuite/boards/../boards/centos /usr/local/share/dejagnu/baseboards/centos /home/franck/openRISC/or1k-src/boards ../../../or1k-src/gdb/testsuite/boards/../boards /usr/local/share/dejagnu/baseboards
Using /home/franck/openRISC/or1k-src/boards/or1k-elf-sim.exp as board description file for target.
Using /usr/local/share/dejagnu/config/sim.exp as generic interface file for target.
Using /usr/local/share/dejagnu/baseboards/basic-sim.exp as board description file for target.
Using simulator or1k-elf-run

Transforming gcc to or1k-elf-gcc
Using ../../../or1k-src/gdb/testsuite/config/sim.exp as tool-and-target-specific interface file.
pushing config for target, name is or1k-elf-sim
Running ../../../or1k-src/gdb/testsuite/gdb.base/structs.exp ...
get_compiler_info: gcc-4-8-0
options are debug additional_flags=-DtA=tc
source is ../../../or1k-src/gdb/testsuite/gdb.base/structs.c /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc executable debug additional_flags=-DtA=tc
doing compile
Executing on host: or1k-elf-gcc ../../../or1k-src/gdb/testsuite/gdb.base/structs.c  -DtA=tc -mnewlib -mboard=or1ksim -lboard-or1ksim -g  -lm   -o /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc    (timeout = 300)
spawn -ignore SIGHUP or1k-elf-gcc ../../../or1k-src/gdb/testsuite/gdb.base/structs.c -DtA=tc -mnewlib -mboard=or1ksim -lboard-or1ksim -g -lm -o /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc
pid is 21851 -21851
output is  status 0
Spawning /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../../gdb/gdb -nw -nx -data-directory /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../data-directory 
spawning command /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../../gdb/gdb -nw -nx -data-directory /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../data-directory  
spawn /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../../gdb/gdb -nw -nx -data-directory /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../data-directory
GNU gdb (GDB) 7.5.50.20121129-cvs
Copyright (C) 2012 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 "--host=i686-pc-linux-gnu --target=or1k-elf".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) GDB initialized.
set height 0
(gdb) set width 0
(gdb) dir
Reinitialize source path to empty? (y or n) y
Source directories searched: $cdir:$cwd
(gdb) dir ../../../or1k-src/gdb/testsuite/gdb.base
Source directories searched: /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../../../or1k-src/gdb/testsuite/gdb.base:$cdir:$cwd
(gdb) Dir set to ../../../or1k-src/gdb/testsuite/gdb.base
kill
The program is not being run.
(gdb) file /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc
Reading symbols from /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc...done.
(gdb) 		Loaded /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc into /home/franck/openRISC/bld-or1k-src/gdb/testsuite/../../gdb/gdb
target sim 
Seeding random generator with value 0x7b99444f
Connected to the simulator.
(gdb) Set target to sim
load
Loading section .vectors, size 0x2000 vma 0x0
Loading section .init, size 0x28 vma 0x2000
Loading section .text, size 0x312c vma 0x2028
Loading section .fini, size 0x1c vma 0x5154
Loading section .rodata, size 0x6 vma 0x5170
Loading section .eh_frame, size 0x4 vma 0x7178
Loading section .ctors, size 0x8 vma 0x717c
Loading section .dtors, size 0x8 vma 0x7184
Loading section .jcr, size 0x4 vma 0x718c
Loading section .data, size 0x668 vma 0x7190
Start address 0x100
Transfer rate: 180144 bits in <1 sec.
(gdb) set print sevenbit-strings
(gdb) PASS: gdb.base/structs.exp: set print sevenbit-strings
set print address off
(gdb) PASS: gdb.base/structs.exp: set print address off
set width 0
(gdb) PASS: gdb.base/structs.exp: set width 0
set print elements 300
(gdb) PASS: gdb.base/structs.exp: set print elements 300
delete breakpoints
(gdb) info breakpoints
No breakpoints or watchpoints.
(gdb) break main
Breakpoint 1: file ../../../or1k-src/gdb/testsuite/gdb.base/structs.c, line 405.
(gdb) target sim 
Connected to the simulator.
(gdb) Set target to sim
load
Loading section .vectors, size 0x2000 vma 0x0
Loading section .init, size 0x28 vma 0x2000
Loading section .text, size 0x312c vma 0x2028
Loading section .fini, size 0x1c vma 0x5154
Loading section .rodata, size 0x6 vma 0x5170
Loading section .eh_frame, size 0x4 vma 0x7178
Loading section .ctors, size 0x8 vma 0x717c
Loading section .dtors, size 0x8 vma 0x7184
Loading section .jcr, size 0x4 vma 0x718c
Loading section .data, size 0x668 vma 0x7190
Start address 0x100
Transfer rate: 180144 bits in <1 sec.
(gdb) run 
Starting program: /home/franck/openRISC/bld-or1k-src/gdb/testsuite/gdb.base/structs-tc 

Breakpoint 1, main () at ../../../or1k-src/gdb/testsuite/gdb.base/structs.c:405
405	  for (i = 0; i < 256; i++)
(gdb) info source
Current source file is ../../../or1k-src/gdb/testsuite/gdb.base/structs.c
Compilation directory is /home/franck/openRISC/bld-or1k-src/gdb/testsuite
Located in /home/franck/openRISC/or1k-src/gdb/testsuite/gdb.base/structs.c
Contains 457 lines.
Source language is c.
Compiled with DWARF 2 debugging format.
Does not include preprocessor macro info.
(gdb) debug format is DWARF 2
break 407
Breakpoint 2: file ../../../or1k-src/gdb/testsuite/gdb.base/structs.c, line 407.
(gdb) continue
Continuing.

Breakpoint 2, main () at ../../../or1k-src/gdb/testsuite/gdb.base/structs.c:407
407	  chartest[0].c = 0;  /* chartest-done */
(gdb) PASS: gdb.base/structs.exp: continue to breakpoint: chartest-done
p chartest
$1 = {{c = 0 '\000'}, {c = 1 '\001'}, {c = 2 '\002'}, {c = 3 '\003'}, {c = 4 '\004'}, {c = 5 '\005'}, {c = 6 '\006'}, {c = 7 '\a'}, {c = 8 '\b'}, {c = 9 '\t'}, {c = 10 '\n'}, {c = 11 '\v'}, {c = 12 '\f'}, {c = 13 '\r'}, {c = 14 '\016'}, {c = 15 '\017'}, {c = 16 '\020'}, {c = 17 '\021'}, {c = 18 '\022'}, {c = 19 '\023'}, {c = 20 '\024'}, {c = 21 '\025'}, {c = 22 '\026'}, {c = 23 '\027'}, {c = 24 '\030'}, {c = 25 '\031'}, {c = 26 '\032'}, {c = 27 '\033'}, {c = 28 '\034'}, {c = 29 '\035'}, {c = 30 '\036'}, {c = 31 '\037'}, {c = 32 ' '}, {c = 33 '!'}, {c = 34 '"'}, {c = 35 '#'}, {c = 36 '$'}, {c = 37 '%'}, {c = 38 '&'}, {c = 39 '\''}, {c = 40 '('}, {c = 41 ')'}, {c = 42 '*'}, {c = 43 '+'}, {c = 44 ','}, {c = 45 '-'}, {c = 46 '.'}, {c = 47 '/'}, {c = 48 '0'}, {c = 49 '1'}, {c = 50 '2'}, {c = 51 '3'}, {c = 52 '4'}, {c = 53 '5'}, {c = 54 '6'}, {c = 55 '7'}, {c = 56 '8'}, {c = 57 '9'}, {c = 58 ':'}, {c = 59 ';'}, {c = 60 '<'}, {c = 61 '='}, {c = 62 '>'}, {c = 63 '?'}, {c = 64 '@'}, {c = 65 'A'}, {c = 66 'B'}, {c = 67 'C'}, {c = 68 'D'}, {c = 69 'E'}, {c = 70 'F'}, {c = 71 'G'}, {c = 72 'H'}, {c = 73 'I'}, {c = 74 'J'}, {c = 75 'K'}, {c = 76 'L'}, {c = 77 'M'}, {c = 78 'N'}, {c = 79 'O'}, {c = 80 'P'}, {c = 81 'Q'}, {c = 82 'R'}, {c = 83 'S'}, {c = 84 'T'}, {c = 85 'U'}, {c = 86 'V'}, {c = 87 'W'}, {c = 88 'X'}, {c = 89 'Y'}, {c = 90 'Z'}, {c = 91 '['}, {c = 92 '\\'}, {c = 93 ']'}, {c = 94 '^'}, {c = 95 '_'}, {c = 96 '`'}, {c = 97 'a'}, {c = 98 'b'}, {c = 99 'c'}, {c = 100 'd'}, {c = 101 'e'}, {c = 102 'f'}, {c = 103 'g'}, {c = 104 'h'}, {c = 105 'i'}, {c = 106 'j'}, {c = 107 'k'}, {c = 108 'l'}, {c = 109 'm'}, {c = 110 'n'}, {c = 111 'o'}, {c = 112 'p'}, {c = 113 'q'}, {c = 114 'r'}, {c = 115 's'}, {c = 116 't'}, {c = 117 'u'}, {c = 118 'v'}, {c = 119 'w'}, {c = 120 'x'}, {c = 121 'y'}, {c = 122 'z'}, {c = 123 '{'}, {c = 124 '|'}, {c = 125 '}'}, {c = 126 '~'}, {c = 127 '\177'}, {c = -128 '\200'}, {c = -127 '\201'}, {c = -126 '\202'}, {c = -125 '\203'}, {c = -124 '\204'}, {c = -123 '\205'}, {c = -122 '\206'}, {c = -121 '\207'}, {c = -120 '\210'}, {c = -119 '\211'}, {c = -118 '\212'}, {c = -117 '\213'}, {c = -116 '\214'}, {c = -115 '\215'}, {c = -114 '\216'}, {c = -113 '\217'}, {c = -112 '\220'}, {c = -111 '\221'}, {c = -110 '\222'}, {c = -109 '\223'}, {c = -108 '\224'}, {c = -107 '\225'}, {c = -106 '\226'}, {c = -105 '\227'}, {c = -104 '\230'}, {c = -103 '\231'}, {c = -102 '\232'}, {c = -101 '\233'}, {c = -100 '\234'}, {c = -99 '\235'}, {c = -98 '\236'}, {c = -97 '\237'}, {c = -96 '\240'}, {c = -95 '\241'}, {c = -94 '\242'}, {c = -93 '\243'}, {c = -92 '\244'}, {c = -91 '\245'}, {c = -90 '\246'}, {c = -89 '\247'}, {c = -88 '\250'}, {c = -87 '\251'}, {c = -86 '\252'}, {c = -85 '\253'}, {c = -84 '\254'}, {c = -83 '\255'}, {c = -82 '\256'}, {c = -81 '\257'}, {c = -80 '\260'}, {c = -79 '\261'}, {c = -78 '\262'}, {c = -77 '\263'}, {c = -76 '\264'}, {c = -75 '\265'}, {c = -74 '\266'}, {c = -73 '\267'}, {c = -72 '\270'}, {c = -71 '\271'}, {c = -70 '\272'}, {c = -69 '\273'}, {c = -68 '\274'}, {c = -67 '\275'}, {c = -66 '\276'}, {c = -65 '\277'}, {c = -64 '\300'}, {c = -63 '\301'}, {c = -62 '\302'}, {c = -61 '\303'}, {c = -60 '\304'}, {c = -59 '\305'}, {c = -58 '\306'}, {c = -57 '\307'}, {c = -56 '\310'}, {c = -55 '\311'}, {c = -54 '\312'}, {c = -53 '\313'}, {c = -52 '\314'}, {c = -51 '\315'}, {c = -50 '\316'}, {c = -49 '\317'}, {c = -48 '\320'}, {c = -47 '\321'}, {c = -46 '\322'}, {c = -45 '\323'}, {c = -44 '\324'}, {c = -43 '\325'}, {c = -42 '\326'}, {c = -41 '\327'}, {c = -40 '\330'}, {c = -39 '\331'}, {c = -38 '\332'}, {c = -37 '\333'}, {c = -36 '\334'}, {c = -35 '\335'}, {c = -34 '\336'}, {c = -33 '\337'}, {c = -32 '\340'}, {c = -31 '\341'}, {c = -30 '\342'}, {c = -29 '\343'}, {c = -28 '\344'}, {c = -27 '\345'}, {c = -26 '\346'}, {c = -25 '\347'}, {c = -24 '\350'}, {c = -23 '\351'}, {c = -22 '\352'}, {c = -21 '\353'}, {c = -20 '\354'}, {c = -19 '\355'}, {c = -18 '\356'}, {c = -17 '\357'}, {c = -16 '\360'}, {c = -15 '\361'}, {c = -14 '\362'}, {c = -13 '\363'}, {c = -12 '\364'}, {c = -11 '\365'}, {c = -10 '\366'}, {c = -9 '\367'}, {c = -8 '\370'}, {c = -7 '\371'}, {c = -6 '\372'}, {c = -5 '\373'}, {c = -4 '\374'}, {c = -3 '\375'}, {c = -2 '\376'}, {c = -1 '\377'}}
(gdb) PASS: gdb.base/structs.exp: p chartest
ptype foo1
type = struct struct1 {
    tc a;
}
(gdb) PASS: gdb.base/structs.exp: ptype foo1; structs-tc
p/c fun1()
[Inferior 1 (process 42000) exited with code 0400]
The program being debugged exited while in a function called from GDB.
Evaluation of the expression containing the function
(fun1) will be abandoned.
(gdb) FAIL: gdb.base/structs.exp: p/c fun<n>(); call 1 structs-tc (the program exited)
call Fun1(foo1)
You can't do that without a process to debug.

.....