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| Subject: | Re: gdb 7.11.1-2 started within emacs fails |
| To: | The Cygwin Mailing List <cygwin AT cygwin DOT com> |
| References: | <d4a9e76c90c44c7cb0fa915a2589c0f6 AT vsrv060ex03 DOT ssd DOT fsi DOT com> <207e93bf-8f7e-57a3-1abc-cc645c79020c AT cornell DOT edu> <9bed0b67-2930-ee6b-8361-4bf4d9d7d542 AT dronecode DOT org DOT uk> <9fbef412-169a-48fd-362e-249e0b585481 AT cornell DOT edu> |
| From: | Jon Turney <jon DOT turney AT dronecode DOT org DOT uk> |
| Message-ID: | <934635e9-edcd-9668-76e1-b237efc918ff@dronecode.org.uk> |
| Date: | Thu, 12 Oct 2017 18:24:09 +0100 |
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On 11/10/2017 21:32, Ken Brown wrote: > On 10/11/2017 3:44 PM, Jon Turney wrote: >> On 27/09/2016 21:15, Ken Brown wrote: >>> 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) >> >> These problem seem not longer occur due to upstream changes in gdb 7.12. > > Everything seems fine on x86_64 and with M-x gud-gdb on x86. But when I > run M-x gdb on x86 (even with no file), gdb crashes. Thanks for testing. It seems this issue is known [1], so I made a gdb 7.12.1-2 with the work-around from there applied, which seems to fix M-x gdb on x86. [1] https://sourceware.org/bugzilla/show_bug.cgi?id=21078 -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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