bug#12163: 24.1; Can not input anything or showing none output when debugging c/c++ application.

[qq510371827]

I am running emacs 24.1 on windows7 32bit with mginw32.When debugging my

c/c++ application I can not give an iputting and can not see any

output. For example:

         ...          //  line 1

         ...          //  line 2

         fgets(s,255,stdin); //line 3

         ...         // line 4

         ...         //line 5

         i = 0; // line 6          Breakpoint is at this line.

Then i started debugging:

(gdb)r

After executing the above command, it stopped at line 6 and didn't

waitting for me to input values. I inputted values in input/output io

buffer but nothing happend.Then I executed "(gdb)n" command,the debug

toolbar icons became grey and i can not continue debugging my

application.I tried to debug another application and it showed none

output during the debugging. However, everything works like a charm in emacs 23.4 on windows7 with

mingw32(emacs 24.1 on ubuntu 12.04 is also works very well).That'all, thank you.

In GNU Emacs 24.1.1 (i386-mingw-nt6.1.7601)

 of 2012-06-10 on MARVIN

Windowing system distributor `Microsoft Corp.', version 6.1.7601

Configured using:

 `configure --with-gcc (4.6) --cflags

 -ID:/devel/emacs/libs/libXpm-3.5.8/include

 -ID:/devel/emacs/libs/libXpm-3.5.8/src

 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include

 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include

 -ID:/devel/emacs/libs/giflib-4.1.4-1/include

 -ID:/devel/emacs/libs/jpeg-6b-4/include

 -ID:/devel/emacs/libs/tiff-3.8.2-1/include

 -ID:/devel/emacs/libs/gnutls-3.0.9/include'

Important settings:

  value of $LC_ALL: nil

  value of $LC_COLLATE: nil

  value of $LC_CTYPE: nil

  value of $LC_MESSAGES: nil

  value of $LC_MONETARY: nil

  value of $LC_NUMERIC: nil

  value of $LC_TIME: nil

  value of $LANG: CHS

  value of $XMODIFIERS: nil

  locale-coding-system: cp936

  default enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:

  tooltip-mode: t

  mouse-wheel-mode: t

  tool-bar-mode: t

  menu-bar-mode: t

  file-name-shadow-mode: t

  global-font-lock-mode: t

  font-lock-mode: t

  blink-cursor-mode: t

  auto-composition-mode: t

  auto-encryption-mode: t

  auto-compression-mode: t

  line-number-mode: t

  transient-mark-mode: t

Recent input:

<help-echo> <help-echo> <help-echo> <help-echo> <drag-n-drop> 

<help-echo> <escape> x g d b <return> <return> b SPC 

1 8 <return> r <return> q <return> <help-echo> <escape> 

x r e p <tab> <down-mouse-1> <mouse-2>

Recent messages:

For information about GNU Emacs and the GNU system, type C-h C-a.

Target doesn't support non-stop mode.  Turning it off.

Switched to thread 1

Making completion list...

call-interactively: End of buffer [2 times]

Load-path shadows:

None found.

Features:

(shadow sort mail-extr emacsbug message format-spec rfc822 mml mml-sec

mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils

mailheader sendmail rfc2047 rfc2045 ietf-drums mail-utils help-mode view

gdb-mi bindat json gud easy-mmode comint ansi-color ring cc-mode

cc-fonts easymenu cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine

cc-vars cc-defs regexp-opt browse-url url-util url-parse auth-source

eieio byte-opt bytecomp byte-compile cconv macroexp assoc gnus-util

password-cache url-vars mm-util mail-prsvr time-date china-util tooltip

ediff-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table ls-lisp

w32-win w32-vars tool-bar dnd fontset image fringe lisp-mode register

page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock

font-lock syntax facemenu font-core frame cham georgian utf-8-lang

misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew

greek romanian slovak czech european ethiopic indian cyrillic chinese

case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs

button faces cus-face files text-properties overlay sha1 md5 base64

format env code-pages mule custom widget hashtable-print-readable

backquote make-network-process multi-tty emacs)