riesebie@galadriel>pts/2 ~ $ LC_ALL=C gdb xterm
GNU gdb (GDB) 7.6.1 (Debian 7.6.1-1)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/xterm...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/xterm
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff63c3dfa in __GI__IO_file_doallocate (fp=0x1f2a600) at filedoalloc.c:111
111 filedoalloc.c: No such file or directory.
(gdb) bt
#0 0x00007ffff63c3dfa in __GI__IO_file_doallocate (fp=0x1f2a600) at filedoalloc.c:111
#1 0x00007ffff63d110c in __GI__IO_doallocbuf (fp=fp@entry=0x1f2a600) at genops.c:419
#2 0x00007ffff63d0394 in _IO_new_file_underflow (fp=0x1f2a600) at fileops.c:577
#3 0x00007ffff63d114e in __GI__IO_default_uflow (fp=0x1f2a600) at genops.c:436
#4 0x00007ffff63c5874 in __GI__IO_getline_info (fp=fp@entry=0x1f2a600,
buf=buf@entry=0x7fffff7ff130 "\220\006=\366\377\177", n=8191, delim=delim@entry=10,
extract_delim=extract_delim@entry=1, eof=eof@entry=0x0) at iogetline.c:69
#5 0x00007ffff63c5968 in __GI__IO_getline (fp=fp@entry=0x1f2a600,
buf=buf@entry=0x7fffff7ff130 "\220\006=\366\377\177", n=<optimized out>, delim=delim@entry=10,
extract_delim=extract_delim@entry=1) at iogetline.c:38
#6 0x00007ffff63c47bf in _IO_fgets (buf=0x7fffff7ff130 "\220\006=\366\377\177", n=<optimized out>, fp=0x1f2a600)
at iofgets.c:56
#7 0x00007ffff44de760 in ?? () from /usr/lib/x86_64-linux-gnu/libXcursor.so.1
#8 0x00007ffff44debdb in ?? () from /usr/lib/x86_64-linux-gnu/libXcursor.so.1
#9 0x00007ffff44dec32 in ?? () from /usr/lib/x86_64-linux-gnu/libXcursor.so.1
#10 0x00007ffff44dec32 in ?? () from /usr/lib/x86_64-linux-gnu/libXcursor.so.1
again and again ...
Elimar
--
Numeric stability is probably not all that
important when you're guessing;-)