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License: BSD 2-Clause "Simplified" License
《从头写一个RISC-V OS》课程配套的资源
License: BSD 2-Clause "Simplified" License
Hi,
我正在尝试使用Rust实现RVOS。在实现第13章抢占式多任务的时候,在task_yield()
中调用r_mhartid()
导致 illegal instruction ,通过调试发现是csrr $0, mhartid
这条指令导致的异常。 应该是与csrr
这个指令有关,因为在测试csrw
的时候也不行。
我的代码在这:https://github.com/RobotHuang/rvos-rust/blob/master/os/src/sched.rs#L145
Thanks
Hi there!
關於外部中斷,我有一些疑惑,還望各位指教,在介紹第 11 章的外部中斷時,提到了我們可以對 PLIC 設置外部中斷做到 UART 輸入的功能,針對這個地方,我有兩點疑問:
mini-riscv-os
上,但是我發現即使不在 OS 開機時也能使用 UART 輸入,想請問我是不是遺漏了什麼重要觀念IRQ = 10
的情況呢?謝謝。
Distributor ID: Ubuntu
Description: Ubuntu 22.04.4 LTS
Release: 22.04
Codename: jammy
GNU Make 4.3
Built for x86_64-pc-linux-gnu
Copyright (C) 1988-2020 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.
Makefile:1: *** missing separator. Stop.
I found that the Makefile files in all folders under asm do not use standard universal syntax, like this:
../build.mk
There may be some versions that can support such writing, but there is no doubt that it is not supported on my system. I tried updating make, but it did not work. The general and correct writing should be as follows:
include ../build.mk
After making the changes it started working without a doubt
Correspondingly, I have sent a PR, I believe it will work well on any make version
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