为什么使用core debug时， where 命令输出为乱码？？

xueyan

Using host libthread_db library "/lib/tls/libthread_db.so.1".
Core was generated by `./temp'.
Program terminated with signal 6, Aborted.
#0  0x40047947 in ?? ()
(gdb) file temp
Reading symbols from /home/mtlab/temp...done.
(gdb) where
#0  0x40047947 in ?? ()
#1  0x4014cff4 in ?? ()
#2  0x401516c0 in ?? ()
#3  0xbffff8d8 in ?? ()
#4  0x400490c9 in ?? ()
#5  0x00000006 in ?? ()
#6  0xbffff84c in ?? ()
#7  0x00000000 in ?? ()
(gdb)

xueyan

知道了, gdb temp -c core