Re: ddd 3.3.10 source code display bug

[Arnaud Desitter]

Hi,

Try to set LANG=C in the environment before starting ddd.
Most probably, this is a problem with Motif.

Regards,

----- Original Message ----- 
From: "Richard Dengler" <RDengler@t-online.de>
Newsgroups: gmane.comp.debugging.ddd.bugs
Sent: Tuesday, December 14, 2004 6:46 PM
Subject: ddd 3.3.10 source code display bug


> Hi!
>
> There is a problem with ddd 3.3.8-104 and ddd 3.3.10, in that it truncates
> the source code display at the first occurrence of a non-ascii character, 
> e.g.
> a character from the set "äÄüÜöÖß", even if the character is in a comment.
> (Was already reported reported by Del Merritt, whom I contacted. A year or 
> so ago).
>
> This occurs at least under SuSE9.1/KDE.
> The behaviour is so annoying because it does not even look like bug,
> it more feels like a feature  :-).
>
> Changeing the source code is not an option in my case, because many people 
> are
> involved, and the non-ascii characters also appear in the names of the 
> people
> (in the file header!) and, again and again, in other comments or strings.
>
>
> A simple workaround for me was to replace all non-ascii characters
> in SourceView::read_indented() with a question-mark
>
>        const int ch(text[t++]);
>        *pos_ptr++ = isascii(ch) ? ch : '?';
>
> (in the while loop near the end of the function).
> I did not find out where problem with the display of the characters is.
>
>
> Actually, to see the non-ascii characters diplayed properly in the source 
> code
> window is fairly irrelevant, if it is only is possibly to get along with 
> the debugging
> (there is no substitute for the ddd).
> The ddd-logfile follows below (but seems to be rather irrelevant in this 
> case).
>
> Thank you for the great work.
>
> Regards
> Richard  Dengler
>
> ----------------------------------------
>
> GNU DDD 3.3.8 (i386-suse-linux-gnu)
> Copyright (C) 1995-1999 Technische Universität Braunschweig, Germany.
> Copyright (C) 1999-2001 Universität Passau, Germany.
> Copyright (C) 2001 Universität des Saarlandes, Germany.
>
> Compiled with GCC 3.3.3 (SuSE Linux), GNU libc 2.3
> Requires X11R6, Xt11R6, Motif 2.2.2 (Motif Version 2.2.2)
> Includes XPM 3.4.11, Athena Panner (7000002L), DDD core
> Built 2004-04-06 by Autobuild <abuild@e33.suse.de>.
> $  ddd tst
> +  /bin/sh -c 'exec gdb -q -fullname '\''tst'\'''
> #  Hello, world!
> #  Opening session "107a3696c8000110285168200000027210027"...
> #  Enabling core dumps...
> #  Enabling core dumps...done.
> #  Running GDB (pid 22175, tty /dev/pts/48)...
> #  Current language: C/C++
> #  Searching "vsllib/ddd.vsl"...
> #  Trying "/home/rid/.ddd/vsllib/ddd.vsl"
> #  Trying "/usr/share/ddd-3.3.8/vsllib/ddd.vsl"
> #  Searching "vsllib/ddd.vsl"..."/usr/share/ddd-3.3.8/vsllib/ddd.vsl".
> <- "Using host libthread_db library \"/lib/tls/libthread_db.so.1\".\n"
>   "(gdb) "
> -> "set prompt (gdb) \n"
> #  Creating 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/"...
> #  Creating 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/"...done.
> #  Copying "/home/rid/.ddd/init" to 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/init"...
> #  Copying "/home/rid/.ddd/init" to 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/init"...done.
> #  Copying "/home/rid/.ddd/history" to 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/history"...
> #  Copying "/home/rid/.ddd/history" to 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/history"...done.
> #  Saving session in 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/init"...
> #  Searching "ddd/Ddd"...
> #  Trying "/home/rid/.ddd/ddd/Ddd"
> #  Trying "/usr/share/ddd-3.3.8/ddd/Ddd"
> #  Searching "ddd/Ddd"..."/usr/share/ddd-3.3.8/ddd/Ddd".
> #  Saving session in 
> "/home/rid/.ddd/sessions/107a3696c8000110285168200000027210027/init"...done.
> <- "(gdb) "
> -> "set height 0\n"
> <- "(gdb) "
> -> "set width 0\n"
> <- "(gdb) "
> -> "set annotate 1\n"
> <- "(gdb) "
> -> " set verbose off\n"
> <- "(gdb) "
> -> "info line\n"
> <- "No line number information available.\n"
>   "(gdb) "
> -> "list\n"
> <- "22\t\t}\n"
>   "23\t\n"
>   "24\t};\n"
>   "25\t\n"
>   "26\t\n"
>
> "27\t/*******************************************************************************\r\n"
>
> "28\t*******************************************************************************/\r\n"
>   "29\tint main(int argc, const char* argv[])\n"
>   "30\t{\n"
>   "31\t\tCThread thread(\"\");\n"
>   "(gdb) "
> -> "info line\n"
> <- "Line 31 of \"main.cpp\" starts at address 0x8048b49 <main+29> and ends 
> at 0x8048b5e <main+50>.\n"
>   "\032\032/home/rid/tst2/main.cpp:31:782:beg:0x8048b49\n"
>   "(gdb) "
> -> "output 4711\n"
> <- "4711(gdb) "
> -> "show language\n"
> <- "The current source language is \"auto; currently c++\".\n"
>   "(gdb) "
> -> "show version\n"
> <- "GNU gdb 6.3\n"
>   "Copyright 2004 Free Software Foundation, Inc.\n"
>   "GDB is free software, covered by the GNU General Public License, and 
> you are\n"
>   "welcome to change it and/or distribute copies of it under certain 
> conditions.\n"
>   "Type \"show copying\" to see the conditions.\n"
>   "There is absolutely no warranty for GDB.  Type \"show warranty\" for 
> details.\n"
>   "This GDB was configured as \"i686-pc-linux-gnu\".\n"
>   "(gdb) "
> -> "pwd\n"
> <- "Working directory /home/rid/tst2.\n"
>   "(gdb) "
> -> "info breakpoints\n"
> <- "No breakpoints or watchpoints.\n"
>   "(gdb) "
> -> "show history filename\n"
> <- "The filename in which to record the command history is 
> \"/home/rid/tst2/.gdb_history\".\n"
>   "(gdb) "
> -> "show history size\n"
> <- "The size of the command history is 1000.\n"
>   "(gdb) "
> #  Reading file "/home/rid/tst2/main.cpp"...
> #  Reading file "/home/rid/tst2/main.cpp"...done.
> #  File "/home/rid/tst2/main.cpp" 42 lines, 1109 characters
> #  Setting buttons...
> #  Setting buttons...done.
> -> "info source\n"
> <- "Current source file is main.cpp\n"
>   "Compilation directory is /home/rid/tst2\n"
>   "Located in /home/rid/tst2/main.cpp\n"
>   "Contains 42 lines.\n"
>   "Source language is c++.\n"
>   "Compiled with DWARF 2 debugging format.\n"
>   "Does not include preprocessor macro info.\n"
>   "(gdb) "
> -> "info files\n"
> <- "Symbols from \"/home/rid/tst2/tst\".\n"
>   "Local exec file:\n"
>   "\t`/home/rid/tst2/tst\', file type elf32-i386.\n"
>   "\tEntry point: 0x8048a70\n"
>   "\t0x08048154 - 0x08048167 is .interp\n"
>   "\t0x08048168 - 0x08048188 is .note.ABI-tag\n"
>   "\t0x08048188 - 0x080481a0 is .note.SuSE\n"
>   "\t0x080481a0 - 0x0804826c is .hash\n"
>   "\t0x0804826c - 0x0804846c is .dynsym\n"
>   "\t0x0804846c - 0x08048704 is .dynstr\n"
>   "\t0x08048704 - 0x08048744 is .gnu.version\n"
>   "\t0x08048744 - 0x080487e4 is .gnu.version_r\n"
>   "\t0x080487e4 - 0x08048814 is .rel.dyn\n"
>   "\t0x08048814 - 0x080488cc is .rel.plt\n"
>   "\t0x080488cc - 0x080488e3 is .init\n"
>   "\t0x080488e4 - 0x08048a64 is .plt\n"
>   "\t0x08048a70 - 0x08049484 is .text\n"
>   "\t0x08049484 - 0x0804949e is .fini\n"
>   "\t0x080494a0 - 0x0804952e is .rodata\n"
>   "\t0x08049530 - 0x080495ac is .eh_frame_hdr\n"
>   "\t0x0804a5c0 - 0x0804a64c is .data\n"
>   "\t0x0804a64c - 0x0804a834 is .eh_frame\n"
>   "\t0x0804a834 - 0x0804a844 is .gcc_except_table\n"
>   "\t0x0804a844 - 0x0804a92c is .dynamic\n"
>   "\t0x0804a92c - 0x0804a934 is .ctors\n"
>   "\t0x0804a934 - 0x0804a93c is .dtors\n"
>   "\t0x0804a93c - 0x0804a940 is .jcr\n"
>   "\t0x0804a940 - 0x0804a9b8 is .got\n"
>   "\t0x0804a9b8 - 0x0804a9bc is .bss\n"
>   "(gdb) "
> -> "info program\n"
> <- "The program being debugged is not being run.\n"
>   "(gdb) "
> -> "set confirm off\n"
> <- "(gdb) "
> -> "source /tmp/dddmjE6EO\n"
> <- "The target architecture is set automatically (currently i386)\n"
>   "The target endianness is set automatically (currently little endian)\n"
>   "/tmp/dddmjE6EO:59: Error in sourced command file:\n"
>   "Undefined item: \"`ISO-8859-1\'\".\n"
>   "(gdb) "
> -> "info breakpoints\n"
> <- "No breakpoints or watchpoints.\n"
>   "(gdb) "
> -> "# reset\n"
> <- "(gdb) "
> -> "info breakpoints\n"
> <- "No breakpoints or watchpoints.\n"
>   "(gdb) "
> -> "display\n"
> <- "(gdb) "
> -> "info display\n"
> <- "There are no auto-display expressions now.\n"
>   "(gdb) "
> -> "set environment TERM dumb\n"
> <- "(gdb) "
> -> "info files\n"
> <- "Symbols from \"/home/rid/tst2/tst\".\n"
>   "Local exec file:\n"
>   "\t`/home/rid/tst2/tst\', file type elf32-i386.\n"
>   "\tEntry point: 0x8048a70\n"
>   "\t0x08048154 - 0x08048167 is .interp\n"
>   "\t0x08048168 - 0x08048188 is .note.ABI-tag\n"
>   "\t0x08048188 - 0x080481a0 is .note.SuSE\n"
>   "\t0x080481a0 - 0x0804826c is .hash\n"
>   "\t0x0804826c - 0x0804846c is .dynsym\n"
>   "\t0x0804846c - 0x08048704 is .dynstr\n"
>   "\t0x08048704 - 0x08048744 is .gnu.version\n"
>   "\t0x08048744 - 0x080487e4 is .gnu.version_r\n"
>   "\t0x080487e4 - 0x08048814 is .rel.dyn\n"
>   "\t0x08048814 - 0x080488cc is .rel.plt\n"
>   "\t0x080488cc - 0x080488e3 is .init\n"
>   "\t0x080488e4 - 0x08048a64 is .plt\n"
>   "\t0x08048a70 - 0x08049484 is .text\n"
>   "\t0x08049484 - 0x0804949e is .fini\n"
>   "\t0x080494a0 - 0x0804952e is .rodata\n"
>   "\t0x08049530 - 0x080495ac is .eh_frame_hdr\n"
>   "\t0x0804a5c0 - 0x0804a64c is .data\n"
>   "\t0x0804a64c - 0x0804a834 is .eh_frame\n"
>   "\t0x0804a834 - 0x0804a844 is .gcc_except_table\n"
>   "\t0x0804a844 - 0x0804a92c is .dynamic\n"
>   "\t0x0804a92c - 0x0804a934 is .ctors\n"
>   "\t0x0804a934 - 0x0804a93c is .dtors\n"
>   "\t0x0804a93c - 0x0804a940 is .jcr\n"
>   "\t0x0804a940 - 0x0804a9b8 is .got\n"
>   "\t0x0804a9b8 - 0x0804a9bc is .bss\n"
>   "(gdb) "
> -> "info program\n"
> <- "The program being debugged is not being run.\n"
>   "(gdb) "
> -> "set auto-solib-add on\n"
> <- "(gdb) "
> -> "set backtrace past-main off\n"
> <- "(gdb) "
> -> "set coerce-float-to-double on\n"
> <- "(gdb) "
> -> "set confirm on\n"
> <- "(gdb) "
> -> "set editing on\n"
> <- "(gdb) "
> -> "set exec-done-display off\n"
> <- "(gdb) "
> -> "set history expansion off\n"
> <- "(gdb) "
> -> "set history save off\n"
> <- "(gdb) "
> -> "set logging overwrite off\n"
> <- "(gdb) "
> -> "set logging redirect off\n"
> <- "(gdb) "
> -> "set opaque-type-resolution on\n"
> <- "(gdb) "
> -> "set overload-resolution on\n"
> <- "(gdb) "
> -> "set pagination on\n"
> <- "(gdb) "
> -> "set print address on\n"
> <- "(gdb) "
> -> "set print array off\n"
> <- "(gdb) "
> -> "set print asm-demangle off\n"
> <- "(gdb) "
> -> "set print demangle on\n"
> <- "(gdb) "
> -> "set print null-stop off\n"
> <- "(gdb) "
> -> "set print object off\n"
> <- "(gdb) "
> -> "set print pascal_static-members on\n"
> <- "(gdb) "
> -> "set print pretty off\n"
> <- "(gdb) "
> -> "set print sevenbit-strings off\n"
> <- "(gdb) "
> -> "set print static-members on\n"
> <- "(gdb) "
> -> "set print symbol-filename off\n"
> <- "(gdb) "
> -> "set print union on\n"
> <- "(gdb) "
> -> "set print vtbl off\n"
> <- "(gdb) "
> -> "set remotebreak off\n"
> <- "(gdb) "
> -> "set remotecache off\n"
> <- "(gdb) "
> -> "set step-mode off\n"
> <- "(gdb) "
> -> "set symbol-reloading off\n"
> <- "(gdb) "
> -> "set trust-readonly-sections off\n"
> <- "(gdb) "
> -> "set unwindonsignal off\n"
> <- "(gdb) "
> -> "set verbose off\n"
> <- "(gdb) "
> -> "set write off\n"
> <- "(gdb) "
> -> "set can-use-hw-watchpoints 1\n"
> <- "(gdb) "
> -> "set debug arch 0\n"
> <- "(gdb) "
> -> "set debug event 0\n"
> <- "(gdb) "
> -> "set debug expression 0\n"
> <- "(gdb) "
> -> "set debug frame 0\n"
> <- "(gdb) "
> -> "set debug lin-lwp 0\n"
> <- "(gdb) "
> -> "set debug overload 0\n"
> <- "(gdb) "
> -> "set debug remote 0\n"
> <- "(gdb) "
> -> "set debug serial 0\n"
> <- "(gdb) "
> -> "set debug target 0\n"
> <- "(gdb) "
> -> "set debugvarobj 0\n"
> <- "(gdb) "
> -> "set stop-on-solib-events 0\n"
> <- "(gdb) "
> -> "set architecture auto\n"
> <- "The target architecture is set automatically (currently i386)\n"
>   "(gdb) "
> -> "set endian auto\n"
> <- "The target endianness is set automatically (currently little 
> endian)\n"
>   "(gdb) "
> -> "set demangle-style auto\n"
> <- "(gdb) "
> -> "set language auto\n"
> <- "(gdb) "
> -> "set disassembly-flavor att\n"
> <- "(gdb) "
> -> "set follow-fork-mode parent\n"
> <- "(gdb) "
> -> "set check range auto\n"
> <- "(gdb) "
> -> "set check type auto\n"
> <- "(gdb) "
> -> "set annotate 1\n"
> <- "(gdb) "
> -> "set backtrace limit 0\n"
> <- "(gdb) "
> -> "set breakpoint pending auto\n"
> <- "(gdb) "
> -> "set case-sensitive auto\n"
> <- "(gdb) "
> -> "set charset `ISO-8859-1\'\n"
> <- "Undefined item: \"`ISO-8859-1\'\".\n"
>   "(gdb) "
> -> "set complaints 0\n"
> <- "(gdb) "
> -> "set cp-abi auto\" (currently \"gnu-v3\"\n"
> <- "Could not find \"auto\" (currently \"gnu-v3\"\" in ABI list\n"
>   "(gdb) "
> -> "set debug-file-directory /usr/lib/debug\n"
> <- "(gdb) "
> -> "set download-write-size 0d512\n"
> <- "(gdb) "
> -> "set gnutarget auto\n"
> <- "(gdb) "
> -> "set height 0\n"
> <- "(gdb) "
> -> "set history filename 
> /home/smau/src/SMU-Startup/MainStartup/.gdb_history\n"
> <- "(gdb) "
> -> "set history size 0d1000\n"
> <- "(gdb) "
> -> "set host-charset ISO-8859-1\n"
> <- "(gdb) "
> -> "set input-radix 0d10\n"
> <- "Input radix now set to decimal 10, hex a, octal 12.\n"
>   "(gdb) "
> -> "set listsize 0d10\n"
> <- "(gdb) "
> -> "set logging file gdb.txt\n"
> <- "(gdb) "
> -> "set max-user-call-depth 0d1024\n"
> <- "(gdb) "
> -> "set os \n"
> <- "(gdb) "
> -> "set output-radix 0d10\n"
> <- "Output radix now set to decimal 10, hex a, octal 12.\n"
>   "(gdb) "
> -> "set print elements 0d200\n"
> <- "(gdb) "
> -> "set print max-symbolic-offset 0\n"
> <- "(gdb) "
> -> "set print repeats 0d10\n"
> <- "(gdb) "
> -> "set prompt (gdb) \n"
> <- "(gdb) "
> -> "set remote hardware-breakpoint-limit 0d4294967295\n"
> <- "(gdb) "
> -> "set remote hardware-watchpoint-limit 0d4294967295\n"
> <- "(gdb) "
> -> "set remote memory-read-packet-size 0\n"
> <- "(gdb) "
> -> "set remote memory-write-packet-size 0\n"
> <- "(gdb) "
> -> "set remote system-call-allowed not allowed\n"
> <- "Illegal argument for \"set remote system-call-allowed\" command\n"
>   "(gdb) "
> -> "set remoteaddresssize 0d32\n"
> <- "(gdb) "
> -> "set remotebaud 0d4294967295\n"
> <- "(gdb) "
> -> "set remotelogbase ascii\n"
> <- "(gdb) "
> -> "set remotetimeout 0d2\n"
> <- "(gdb) "
> -> "set solib-search-path \n"
> <- "(gdb) "
> -> "set struct-convention default\n"
> <- "(gdb) "
> -> "set target-charset ISO-8859-1\n"
> <- "(gdb) "
> -> "set tui active-border-mode bold-standout\n"
> <- "No symbol \"tui\" in current context.\n"
>   "(gdb) "
> -> "set tui border-kind acs\n"
> <- "No symbol \"tui\" in current context.\n"
>   "(gdb) "
> -> "set tui border-mode normal\n"
> <- "No symbol \"tui\" in current context.\n"
>   "(gdb) "
> -> "set watchdog 0\n"
> <- "(gdb) "
> -> "set width 0\n"
> <- "(gdb) "
> -> "set confirm off\n"
> <- "(gdb) "
> -> "define session\n"
> <- ">"
> -> "br main\n"
> <- ">"
> -> "echo ddd-22174-1102851682: run\\n"
>   "\n"
> <- ">"
> -> "end\n"
> <- "(gdb) "
> -> "define pss\n"
> <- ">"
> -> "printf \"STL-String =%s|%d>\\n"
>   "\", $arg0.c_str(), $arg0.size()\n"
> <- ">"
> -> "end\n"
> <- "(gdb) "
> -> "define pqs\n"
> <- ">"
> -> "set $i = 0\n"
> <- ">"
> -> "set $unicode = $arg0.d->unicode\n"
> <- ">"
> -> "printf \"QString =\"\n"
> <- ">"
> -> "while $i < $arg0.d->len\n"
> <- " >"
> -> "set $c = $unicode[$i++].ucs\n"
> <- " >"
> -> "if $c < 32\n"
> <- "  >"
> -> "printf \"\\\\0%o\", $c\n"
> <- "  >"
> -> "else\n"
> <- "  >"
> -> "if $c <= 127\n"
> <- "   >"
> -> "printf \"%c\", $c\n"
> <- "   >"
> -> "else\n"
> <- "   >"
> -> "printf \"\\\\0%o\", $c\n"
> <- "   >"
> -> "end\n"
> <- "  >"
> -> "end\n"
> <- " >"
> -> "end\n"
> <- ">"
> -> "printf \"|%d>\\n"
>   "\", $arg0.d->len\n"
> <- ">"
> -> "end\n"
> <- "(gdb) "
> -> "define br\n"
> <- ">"
> -> "br\n"
> <- ">"
> -> "end\n"
> <- "(gdb) "
> -> "define addsourcepath\n"
> <- ">"
> -> "dir /home/smau/src/SMU/SMU-Database\n"
> <- ">"
> -> "end\n"
> <- "(gdb) "
> -> "set confirm on\n"
> <- "(gdb) "
> #  Opening session "107a3696c8000110285168200000027210027"...done.
> #  Welcome to DDD 3.3.8 "Cinnamon" (i386-suse-linux-gnu)
> -> "help detach\n"
> <- "Detach a process or file previously attached.\n"
>   "If a process, it is no longer traced, and it continues its execution. 
> If\n"
>   "you were debugging a file, the file is closed and gdb no longer 
> accesses it.\n"
>   "(gdb) "
> -> "help run\n"
> <- "Start debugged program.  You may specify arguments to give it.\n"
>   "Args may include \"*\", or \"[...]\"; they are expanded using 
> \"sh\".\n"
>   "Input and output redirection with \">\", \"<\", or \">>\" are also 
> allowed.\n"
>   "\n"
>   "With no arguments, uses arguments last specified (with \"run\" or \"set 
> args\").\n"
>   "To cancel previous arguments and run with no arguments,\n"
>   "use \"set args\" without arguments.\n"
>   "(gdb) "
> -> "help step\n"
> <- "Step program until it reaches a different source line.\n"
>   "Argument N means do this N times (or till program stops for another 
> reason).\n"
>   "(gdb) "
> -> "help stepi\n"
> <- "Step one instruction exactly.\n"
>   "Argument N means do this N times (or till program stops for another 
> reason).\n"
>   "(gdb) "
> -> "help next\n"
> <- "Step program, proceeding through subroutine calls.\n"
>   "Like the \"step\" command as long as subroutine calls do not happen;\n"
>   "when they do, the call is treated as one instruction.\n"
>   "Argument N means do this N times (or till program stops for another 
> reason).\n"
>   "(gdb) "
> -> "help nexti\n"
> <- "Step one instruction, but proceed through subroutine calls.\n"
>   "Argument N means do this N times (or till program stops for another 
> reason).\n"
>   "(gdb) "
> -> "help until\n"
> <- "Execute until the program reaches a source line greater than the 
> current\n"
>   "or a specified location (same args as break command) within the current 
> frame.\n"
>   "(gdb) "
> -> "help finish\n"
> <- "Execute until selected stack frame returns.\n"
>   "Upon return, the value returned is printed and put in the value 
> history.\n"
>   "(gdb) "
> -> "help cont\n"
> <- "Continue program being debugged, after signal or breakpoint.\n"
>   "If proceeding from breakpoint, a number N may be used as an 
> argument,\n"
>   "which means to set the ignore count of that breakpoint to N - 1 (so 
> that\n"
>   "the breakpoint won\'t break until the Nth time it is reached).\n"
>   "(gdb) "
> -> "help signal\n"
> <- "Continue program giving it signal specified by the argument.\n"
>   "An argument of \"0\" means continue program without giving it a 
> signal.\n"
>   "(gdb) "
> -> "help kill\n"
> <- "Kill execution of program being debugged.\n"
>   "(gdb) "
> -> "help up\n"
> <- "Select and print stack frame that called this one.\n"
>   "An argument says how many frames up to go.\n"
>   "(gdb) "
> -> "help down\n"
> <- "Select and print stack frame called by this one.\n"
>   "An argument says how many frames down to go.\n"
>   "(gdb) "
> -> "help br\n"
> <- "User-defined.\n"
> <- "(gdb) "
> -> "quit\n"
> #  Running GDB (pid 22175, tty /dev/pts/48)...Exit 0.
> #  Saving options in "/home/rid/.ddd/init"...
> #  Saving options in "/home/rid/.ddd/init"...done.
> #  Deleting session "107a3696c8000110285168200000027210027"...
> #  Current session is [none].
> #  Deleting session "107a3696c8000110285168200000027210027"...done.
> #  Saving history in "/home/rid/.ddd/history"...
> #  Saving history in "/home/rid/.ddd/history"...done.
> #  Thanks for using DDD 3.3.8!