[Bug exp/31671] New: [gdb/exp] Segmentation fault in value_type

["vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=31671

            Bug ID: 31671
           Summary: [gdb/exp] Segmentation fault in value_type
           Product: gdb
           Version: 13.1
            Status: NEW
          Severity: normal
          Priority: P2
         Component: exp
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

With a 13.2 based package, on SLE-11 using gcc 4.3.4, I run into:
...
(gdb) FAIL: gdb.objc/basicclass.exp: breakpoint in category method
continue
Continuing.

Breakpoint 5, -[BasicClass(Private) hiddenMethod] (self=0x605170, _cmd=0x601400
<_OBJC_SELECTOR_TABLE+32>) at
/usr/src/packages/BUILD/gdb-13.2/gdb/testsuite/gdb.objc/basicclass.m:62
62        return self;
(gdb) FAIL: gdb.objc/basicclass.exp: continue until category method
print [self printHi]


Fatal signal: Segmentation fault
----- Backtrace -----
0x4fffc2 gdb_internal_backtrace_1
        ../../gdb/bt-utils.c:122
0x4fffc2 _Z22gdb_internal_backtracev
        ../../gdb/bt-utils.c:168
0x6146d7 handle_fatal_signal
        ../../gdb/event-top.c:971
0x61475f handle_sigsegv
        ../../gdb/event-top.c:1044
0x151a6dc0f84f ???
0x8f2860 _Z10value_typePK5value
        ../../gdb/value.c:1111
0x683270 value_arg_coerce
        ../../gdb/infcall.c:184
0x683270
_Z27call_function_by_hand_dummyP5valueP4typeN3gdb10array_viewIS0_EEPFvPviES6_
        ../../gdb/infcall.c:1112
0x685c5e _Z21call_function_by_handP5valueP4typeN3gdb10array_viewIS0_EE
        ../../gdb/infcall.c:786
0x60e290 eval_op_objc_msgcall
        ../../gdb/eval.c:2176
0x60e290 _ZN4expr22objc_msgcall_operation8evaluateEP4typeP10expression6noside
        ../../gdb/eval.c:2253
0x61288e _ZN10expression8evaluateEP4type6noside
        ../../gdb/eval.c:101
0x77c8fc process_print_command_args
        ../../gdb/printcmd.c:1310
0x77d2cd print_command_1
        ../../gdb/printcmd.c:1323
0x533125 _Z8cmd_funcP16cmd_list_elementPKci
        ../../gdb/cli/cli-decode.c:2543
0x8a24a6 _Z15execute_commandPKci
        ../../gdb/top.c:690
0x615403 _Z15command_handlerPKc
        ../../gdb/event-top.c:628
0x6163cd _Z20command_line_handlerOSt10unique_ptrIcN3gdb13xfree_deleterIcEEE
        ../../gdb/event-top.c:864
0x61498b gdb_rl_callback_handler
        ../../gdb/event-top.c:256
0x92085f rl_callback_read_char
        ../../../readline/readline/callback.c:290
0x614b9d gdb_rl_callback_read_char_wrapper_noexcept
        ../../gdb/event-top.c:192
0x614d6f gdb_rl_callback_read_char_wrapper
        ../../gdb/event-top.c:231
0x6147ff stdin_event_handler
        ../../gdb/event-top.c:553
0xac559c gdb_wait_for_event
        ../../gdbsupport/event-loop.cc:694
0xac5d31 _Z16gdb_do_one_eventi
        ../../gdbsupport/event-loop.cc:264
0x6f26f9 start_event_loop
        ../../gdb/main.c:411
0x6f26f9 captured_command_loop
        ../../gdb/main.c:471
0x6f3f04 captured_main
        ../../gdb/main.c:1330
0x6f3f04 _Z8gdb_mainP18captured_main_args
        ../../gdb/main.c:1345
0x414c84 main
        ../../gdb/gdb.c:32
---------------------
A fatal error internal to GDB has been detected, further
debugging is not possible.  GDB will now terminate.

This is a bug, please report it.  For instructions, see:
<http://bugs.opensuse.org/>.
...

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