2019年麻省理工学院xv6(riscv) -from调试问题6.S081/6.828操作系统课程

Question

我正在尝试调试用户程序，但当我执行以下操作时：

open a terminal:make qemu-gdb
another terminal:
riscv64-unknown-elf-gdb 
file wc(or any other user programs)
it says:
(gdb) file wc
warning: A handler for the OS ABI "GNU/Linux" is not built into this configuration
of GDB. Attempting to continue with the default riscv settings.

warning: A handler for the OS ABI "GNU/Linux" is not built into this configuration
of GDB. Attempting to continue with the default riscv settings.

Reading symbols from wc...
(No debugging symbols found in wc)

我编辑了Makefile，并在CFLAGS和LDFLAGS中添加了-g，但就是不起作用。我想知道如何调试用户程序

如果你能回复并帮助我，我将不胜感激

ps:这是MakeFile和项目树

树：https://paste.ubuntu.com/p/s9JGY8d4Z9/生成文件：https://paste.ubuntu.com/p/Zp6HXcF4Vq/

Answer 1

我终于想通了：

文件命令后面应该跟有可执行文件的路径

因此，如树所示:如果我想调试wc，我应该输入：

file user/_wc

然后设置断点，然后继续

然后在qemu中运行wc