value_from_register: Value not stored anywhere!

[Jon Ringle <jon dot ringle at comdial dot com>]

Hi,

I got this internal error in an arm gdb I built from cvs a couple weeks ago. I 
opened up the core file and here is the backtrace. I'm not sure what the 
problem is.

Jon

GNU gdb 5.3-22mdk (Mandrake Linux)
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This GDB was configured as "i586-mandrake-linux-gnu".
Core was generated by `/home/eringlej/gdb-cvs/gdb-6.0-arm-build/gdb/gdb -q -fullname -b 115200 vmlinux'.
Program terminated with signal 6, Aborted.
#0  0x400af481 in ?? ()
Setting up the environment for debugging gdb.
.gdbinit:5: Error in sourced command file:
No symbol table is loaded.  Use the "file" command.
(gdb) file gdb
Reading symbols from gdb...done.
(gdb) (gdb) b(gdb) bt(gdb) bt
#0  0x400af481 in ?? ()
#1  0x400b076b in ?? ()
#2  0x0811e839 in internal_vproblem (problem=0x8269a40, 
    file=0x81f965a "../../src/gdb/findvar.c", line=706, 
    fmt=0x81f9980 "value_from_register: Value not stored anywhere!", 
    ap=0xbfffe8ac "Ôõ\b\b\210Í+\b") at ../../src/gdb/utils.c:774
#3  0x0811e882 in internal_verror (file=0x81f965a "../../src/gdb/findvar.c", 
    line=706, fmt=0x81f9980 "value_from_register: Value not stored anywhere!", 
    ap=0xbfffe8ac "Ôõ\b\b\210Í+\b") at ../../src/gdb/utils.c:797
#4  0x0811e8ac in internal_error (file=0x81f965a "../../src/gdb/findvar.c", 
    line=706, 
    string=0x81f9980 "value_from_register: Value not stored anywhere!")
    at ../../src/gdb/utils.c:806
#5  0x0808f7f9 in value_from_register (type=0x853bcb4, regnum=0, 
    frame=0x82a6418) at ../../src/gdb/findvar.c:706
#6  0x0808f47e in read_var_value (var=0x8548834, frame=0x82a6418)
    at ../../src/gdb/findvar.c:556
#7  0x080c666d in print_frame_args (func=0x85487a4, fi=0x82a6418, num=-1, 
    stream=0x82b5a20) at ../../src/gdb/stack.c:351
#8  0x080c6828 in print_args_stub (args=0xbfffeb70)
    at ../../src/gdb/stack.c:406
#9  0x0811c1a1 in do_catch_errors (uiout=0x82a8be8, data=0xbfffeb38)
    at ../../src/gdb/top.c:497
#10 0x0811c044 in catcher (func=0x811c185 <do_catch_errors>, 
    func_uiout=0x82a8be8, func_args=0xbfffeb38, func_val=0xbfffeb44, 
    func_caught=0xbfffeb40, errstring=0x8208f80 "", mask=6)
    at ../../src/gdb/top.c:429
#11 0x0811c1dd in catch_errors (func=0x80c67a6 <print_args_stub>, 
    func_args=0xbfffeb70, errstring=0x8208f80 "", mask=6)
    at ../../src/gdb/top.c:509
#12 0x080c6f44 in print_frame (fi=0x82a6418, level=1, source=0, args=1, sal=
      {symtab = 0x8540f88, section = 0x0, line = 1383, pc = 268620312, end = 268620316}) at ../../src/gdb/stack.c:660
#13 0x080c6a3f in print_frame_info (fi=0x82a6418, level=1, source=0, args=1)
    at ../../src/gdb/stack.c:479
#14 0x080c7e21 in backtrace_command_1 (count_exp=0x0, show_locals=0, 
    from_tty=0) at ../../src/gdb/stack.c:1226
#15 0x080c8088 in backtrace_command (arg=0x0, from_tty=0)
    at ../../src/gdb/stack.c:1292
#16 0x08075ebb in do_cfunc (c=0x829b090, args=0x0, from_tty=0)
    at ../../src/gdb/cli/cli-decode.c:53
#17 0x08077e4a in cmd_func (cmd=0x829b090, args=0x0, from_tty=0)
    at ../../src/gdb/cli/cli-decode.c:1537
#18 0x0811c56e in execute_command (p=0x828b74d "", from_tty=1)
    at ../../src/gdb/top.c:716
#19 0x080cc8ee in command_handler (command=0x828b748 "where")
    at ../../src/gdb/event-top.c:500
#20 0x080cd0fa in command_line_handler (rl=0x84683a8 "`½D\b")
    at ../../src/gdb/event-top.c:793
#21 0x081d24d7 in rl_callback_read_char () at ../../src/readline/callback.c:123
#22 0x080cc027 in rl_callback_read_char_wrapper (client_data=0x0)
    at ../../src/gdb/event-top.c:166
#23 0x080cc7af in stdin_event_handler (error=0, client_data=0x0)
    at ../../src/gdb/event-top.c:416
#24 0x080cb71f in handle_file_event (event_file_desc=0)
    at ../../src/gdb/event-loop.c:721
#25 0x080cb03d in process_event () at ../../src/gdb/event-loop.c:334
#26 0x080cb089 in gdb_do_one_event (data=0x0) at ../../src/gdb/event-loop.c:371
#27 0x0811c1a1 in do_catch_errors (uiout=0x82a8be8, data=0xbffff018)
    at ../../src/gdb/top.c:497
#28 0x0811c044 in catcher (func=0x811c185 <do_catch_errors>, 
    func_uiout=0x82a8be8, func_args=0xbffff018, func_val=0xbffff024, 
    func_caught=0xbffff020, errstring=0x820a5c0 "", mask=6)
    at ../../src/gdb/top.c:429
#29 0x0811c1dd in catch_errors (func=0x80cb055 <gdb_do_one_event>, 
    func_args=0x0, errstring=0x820a5c0 "", mask=6) at ../../src/gdb/top.c:509
#30 0x080cb0bc in start_event_loop () at ../../src/gdb/event-loop.c:397
#31 0x080cc13e in cli_command_loop () at ../../src/gdb/event-top.c:198
#32 0x080ca985 in current_interp_command_loop () at ../../src/gdb/interps.c:279
#33 0x08073a27 in captured_command_loop (data=0x0) at ../../src/gdb/main.c:97
#34 0x0811c1a1 in do_catch_errors (uiout=0x82a8be8, data=0xbffff1d8)
    at ../../src/gdb/top.c:497
#35 0x0811c044 in catcher (func=0x811c185 <do_catch_errors>, 
    func_uiout=0x82a8be8, func_args=0xbffff1d8, func_val=0xbffff1e4, 
    func_caught=0xbffff1e0, errstring=0x81ed0cd "", mask=6)
    at ../../src/gdb/top.c:429
#36 0x0811c1dd in catch_errors (func=0x8073a1c <captured_command_loop>, 
    func_args=0x0, errstring=0x81ed0cd "", mask=6) at ../../src/gdb/top.c:509
#37 0x08074858 in captured_main (data=0xbffff4f0) at ../../src/gdb/main.c:811
#38 0x0811c1a1 in do_catch_errors (uiout=0x8268360, data=0xbffff4a8)
    at ../../src/gdb/top.c:497
#39 0x0811c044 in catcher (func=0x811c185 <do_catch_errors>, 
    func_uiout=0x8268360, func_args=0xbffff4a8, func_val=0xbffff4b4, 
    func_caught=0xbffff4b0, errstring=0x81ed0cd "", mask=6)
    at ../../src/gdb/top.c:429
#40 0x0811c1dd in catch_errors (func=0x8073a5c <captured_main>, 
    func_args=0xbffff4f0, errstring=0x81ed0cd "", mask=6)
    at ../../src/gdb/top.c:509
#41 0x08074882 in gdb_main (args=0xbffff4f0) at ../../src/gdb/main.c:820
#42 0x08073a15 in main (argc=6, argv=0xbffff554) at ../../src/gdb/gdb.c:35
#43 0x4009c7f7 in ?? ()
(gdb) quit