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Re: Problem on Cygwin with gdb: segy input can't be tty


Larry,

Yes, I can type cat and enter text and it is returned to me. How can I try cat with suresamp? You lost me there. Thanks for looking at this.

Don

Larry Hall wrote:

At 12:59 PM 6/5/2004, you wrote:



In trying to debug code with gdb, any program taking stdin on the command line complains that tty (keyboard) is already taken by gdb, so it can't use tty. Is there a way that you can get the input data into the program other than stdin; or force it in with stdin?

Example of problem:
---
$ gdb suresamp
GNU gdb 2003-09-20-cvs (cygwin-special)
Copyright ...
.
.
(gdb) r < /home/work/tape01-1.su
Starting program: /usr/local/cwp/bin/suresamp.exe < /home/work/tape01-1.su

/usr/local/cwp/bin/suresamp: fgettr.c: segy input can't be tty

Program exited with code 01.
(gdb)
---

suresamp (and other programs that use stdin) works fine when not in debug (gdb) mode (because gdb isn't using tty).

This may be a cygwin only issue, as it works on a linux sun box.





I tried this with 'cat', not specifying a file, and found I could type in
and see my input echoed back fine (just like outside 'gdb'). Does that reproduce for you? Does trying that with 'suresamp.exe' give you different
results?



--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
838 Washington Street (508) 893-9889 - FAX
Holliston, MA 01746







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