我有一个C文件，我用-g选项编译，并将调试符号保存到另一个文件中，并剥离了可执行文件。当我尝试用set debug-file-directory /root/test调试此可执行文件时，我无法设置断点。我猜符号文件Map不起作用。有人能在这里给予一些输入吗？

#include <stdio.h>
void func1()
{
}

int main() {
FILE *fp;
fp  = fopen ("/tmp/abcdefg", "w");
func1();
}

用调试符号编译;

gcc -g file.c

已将两柴符号储存至相同目录中的不同档案。

strip --strip-debug a.out -o a.out.debug

剥离了可执行文件;

strip a.out

exe a.out和调试符号文件a.out.debug位于/root/test目录中。
正在启动gdb会话;

root@ubuntu:~/test# gdb a.out
GNU gdb (Ubuntu 8.1.1-0ubuntu1) 8.1.1
Copyright (C) 2018 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".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from a.out...(no debugging symbols found)...done.
(gdb) set debug-file-directory /root/test
(gdb) show debug-file-directory
The directory where separate debug symbols are searched for is "/root/test".
(gdb) b main
Function "main" not defined.
Make breakpoint pending on future shared library load? (y or [n]) n
(gdb) q
You have new mail in /var/mail/root