gdb greeting后,list命令后显示No symbol table is loaded. Use the "fil

ballball2

gdb greeting后,list命令后显示No symbol table is loaded.  Use the "file" command.
然后我又file greeting和run后,显示:
(gdb) file hello
Reading symbols from /root/code/hello...(no debugging symbols found)...done.
(gdb) run
Starting program: /root/code/hello
Reading symbols from shared object read from target memory...(no debugging symbols found)...done.
Loaded system supplied DSO at 0xf4c000
(no debugging symbols found)
(no debugging symbols found)
hello!

我知道怎么解决?帮帮我

ballball2

不好意思
编译时候一定要:gcc -o filename -g filename.c

ballball2

又有新问题料,无法执行next
(gdb) watch string2[size-i]
Hardware watchpoint 3: string2[size - i]
(gdb) next
warning: Could not remove hardware watchpoint 3.
Warning:
Could not insert hardware watchpoint 3.
Could not insert hardware breakpoints:
You may have requested too many hardware breakpoints/watchpoints.