arm-linux-gdb show "Don't know how to run"

arm-linux-gdb show "Don't know how to run"

[Τ¶«É½]

1. I have install gdb5.3 as follow:
   ./configure --target=arm-linux
   make
   make install

2. I wrote a simply program "hello.c":
   arm-linux-gcc -g -o hello hello.c

3. When i used the arm-linux-gdb to debug, it showed:
   
#arm-linux-gdb hello
GNU gdb 5.3
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General
Public License, and you are
welcome to change it and/or distribute copies of
it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type
"show warranty" for details.
This GDB was configured as
"--host=i686-pc-linux-gnu --target=arm-linux"...
(gdb) run
Starting program:
/friendly-arm/root/examples/hello/hello
Don't know how to run.  Try "help target".


Who can help me? Thank you!

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