printf.c: 没有那个文件或目录
tarting program: /home/colin/e/square_sum
Breakpoint 1, main () at square_sum.c:8
8 printf("Enter two integers,or use 00 to exit:");
(gdb) s
__printf (format=0x80485d0 "Enter two integers,or use 00 to exit:")
at printf.c:28
28 printf.c: 没有那个文件或目录.
(gdb) break 7
Breakpoint 3 at 0xb7e634a0: file printf.c, line 7.
(gdb) r
(printf.c: 没有那个文件或目录. ) 不知道什么情况,求解释?