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From: "William M. (Mike) Miller" <william.m.miller@gmail.com>
Date: Wed, 19 Oct 2016 11:29:56 -0400
Message-ID: <CAH5rLZU9808GtL8KeaZYrYS0zrORyJXE4+jyiBNmFoSccd-z3g@mail.gmail.com>
Subject: Re: gdb 7.11.1-2 started within emacs fails
To: cygwin@cygwin.com
Content-Type: text/plain; charset=UTF-8

On Thu, Sep 29, 2016 at 11:21 AM, Rockefeller, Harry
<Harry.Rockefeller@flightsafety.com> wrote:
>
>>-----Original Message-----
>>From: cygwin-owner@cygwin.com [mailto:cygwin->owner@cygwin.com] On Behalf Of Ken Brown
>>Sent: Tuesday, September 27, 2016 3:16 PM
>>To: cygwin@cygwin.com
>>Subject: Re: gdb 7.11.1-2 started within emacs fails
>
>>On 9/27/2016 2:47 PM, Rockefeller, Harry wrote:
>>> Using program foo:
>>>       program foo
>>>       e = 1.0
>>>       stop
>>>       end
>>>
>>> $ /usr/bin/gfortran    -g foo.f -o foo
>>>
>>> Emacs version info: GNU Emacs 25.1.1 (i686-pc-cygwin, GTK+ Version
>>> 3.18.9) of 2016-09-17
>>>
>>> Inside emacs I ran M-x gud-gdb and got ... GNU gdb (GDB) (Cygwin
>>> 7.11.1-2) 7.11.1 ...
>>> (gdb) b 1
>>> Breakpoint 1 at 0x4011d6: file foo.f, line 1.
>>> (gdb) r
>>> Starting program: /cygdrive/c/Users/harryr/foo.exe [New Thread
>>> 6296.0x22ac] [New Thread 6296.0x24d4]
>>> readline: readline_callback_read_char() called with no handler!
>>> Debugger aborted (core dumped)
>>>
>>> Foo written in C++ also fails with the same message.
>>> Running gdb foo in bash gives the expected result:
>>> gdb stops at first executable line prompting for next gdb command.
>>I can confirm that this happens also with gdb-7.11.1-1 but not gdb-7.10.1-1.  (I tested on x86_64, since gdb-7.10.1-1 is broken on x86.)
>>It also fails with M-x gdb instead of M-x gud-gdb, but with a different error message:
>>Failed to resume program execution (ContinueDebugEvent failed, error 87)
>>Ken
>
> I tried using 'ddd' instead of emacs and gdb aborts with the same readline ... message above.

Any progress on the above issue? I recently updated my gdb and am
running into the same problem.

-- 
William M. (Mike) Miller | Edison Design Group
william.m.miller@gmail.com

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