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Merge pull request #59 from Yakkhini/main
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Fix: Used but undeclared macro 'asm!'.
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chyyuu authored Jul 14, 2022
2 parents ca8f42e + a158acb commit 698d755
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78 changes: 50 additions & 28 deletions QA.md
Original file line number Diff line number Diff line change
@@ -1,25 +1,25 @@
# 常见问题解答

## Q0:GitHub classroom是啥?如何使用?
## Q0:GitHub classroom 是啥?如何使用?

### A:
### A

- [B站的GitHub Classroom 视频介绍](https://www.bilibili.com/video/BV12L41147r7?spm_id_from=333.337.search-card.all.click&vd_source=8e19ee6e49f598fda8c17e306d8b3726)
- [Youtube的GitHub Classroom视频介绍](https://www.youtube.com/playlist?list=PLIRjfNq867bewk3ZGV6Z7a16YDNRCpK3u)
- [github文档:使用 GitHub Classroom 教学](https://docs.github.com/cn/education/manage-coursework-with-github-classroom/get-started-with-github-classroom)
- [B 站的 GitHub Classroom 视频介绍](https://www.bilibili.com/video/BV12L41147r7?spm_id_from=333.337.search-card.all.click&vd_source=8e19ee6e49f598fda8c17e306d8b3726)
- [Youtube 的 GitHub Classroom 视频介绍](https://www.youtube.com/playlist?list=PLIRjfNq867bewk3ZGV6Z7a16YDNRCpK3u)
- [GitHub 文档:使用 GitHub Classroom 教学](https://docs.github.com/cn/education/manage-coursework-with-github-classroom/get-started-with-github-classroom)

## Q1:已经在classroom中建立了自己的仓库(例如 “LearningOS/lab0-0-setup-env-run-os1-chyyuu2022"),但是源仓库“LearningOS/rust-based-os-comp2022更新了,如何处理?
## Q1:已经在 classroom 中建立了自己的仓库(例如“LearningOS/lab0-0-setup-env-run-os1-chyyuu2022),但是源仓库“LearningOS/rust-based-os-comp2022更新了,如何处理?

### A:

**方法一:**

重新点击加入课程的链接,在页面下方会有一行字“We've configured the repository associated with this assignment (update)”,“update”是一个链接,点击update就可以把自己的仓库更新到与最新状态的repository template一致
重新点击加入课程的链接,在页面下方会有一行字“We've configured the repository associated with this assignment (update)”,“update”是一个链接,点击 update 就可以把自己的仓库更新到与最新状态的 repository template 一致

**方法二:**

在自己构建的仓库根目录下执行以下命令:
在自己构建的仓库根目录下执行以下命令

```makefile
git remote add upstream "https://github.com/LearningOS/rust-based-os-comp2022.git"
Expand All @@ -35,49 +35,71 @@ git push -f

向管理员“助教许善朴”申请删除已生成仓库,再点击 链接重新创建仓库。

## Q2:在classroom中建立了自己的仓库中,进行提交 `git push` 后,触发 CI后,出现 Annotations 错误“The job was not stared because recent account payments have failed or your spending limit needs to be increased. Please check the 'Billing & plans' section in your settings”,无法完成自动CI功能,比如 `Autograding` 等。
## Q2:在 classroom 中建立了自己的仓库中,进行提交 `git push` 后,触发 CI 后,出现 Annotations 错误“The job was not stared because recent account payments have failed or your spending limit needs to be increased. Please check the 'Billing & plans' section in your settings”,无法完成自动 CI 功能,比如 `Autograding` 等。

### A:
### A

**方法一:**

这是由于对用户的私有仓库进行CI 相关的github action是需要付费的。用户可通过给自己的github账户充值来解决https://docs.github.com/cn/billing/managing-billing-for-github-actions/about-billing-for-github-actions 给出了具体信息。
这是由于对用户的私有仓库进行 CI 相关的 GitHub Action 是需要付费的。用户可通过给自己的 github 账户充值来解决https://docs.github.com/cn/billing/managing-billing-for-github-actions/about-billing-for-github-actions 给出了具体信息。

**方法二:**

对用户的公开仓库进行CI github action是不需要付费的。在项目的 `Settings` -> `Change visibility` 将项目改成Public, 重新触发Action
目前设置了让用户具有修改自己的项目从private --> public的能力
对用户的公开仓库进行 CI GitHub Action 是不需要付费的。在项目的 `Settings` -> `Change visibility` 将项目改成 Public, 重新触发 Action
目前设置了让用户具有修改自己的项目从 private --> public 的能力
如果用户还是发现自己的权限不够,或看不到 `Settings` 这个选项,可以通过联系助教帮助来解决。

## Q3:我刚开始准备学习Rust,是Rust新手,我应该如何入门?
## Q3:我刚开始准备学习 Rust,是 Rust 新手,我应该如何入门?

### A:
### A

- [Rust 大佬给初学者的学习建议](https://github.com/rustlang-cn/Rustt/blob/main/Articles/%5B2022-04-02%5D%20Rust%20%E5%A4%A7%E4%BD%AC%E7%BB%99%E5%88%9D%E5%AD%A6%E8%80%85%E7%9A%84%E5%AD%A6%E4%B9%A0%E5%BB%BA%E8%AE%AE.md)
- [张汉东:学习 Rust 你需要一个认知框架](https://zhuanlan.zhihu.com/p/494001676)
- [Rust语言圣经(Rust Course)](https://course.rs/)
- [Rust速查表(cheatsheet)](https://cheats.rs/) 该项目不仅提供了基础的语法速查,还有执行顺序详解和编写时需要关注的注意事项。项目还包含了示例代码(EX)、书籍(BK)、标准(STD)等相关资料的扩展。
- [Rust 语言圣经(Rust Course](https://course.rs/)
- [Rust 速查表(cheatsheet)](https://cheats.rs/) 该项目不仅提供了基础的语法速查,还有执行顺序详解和编写时需要关注的注意事项。项目还包含了示例代码(EX)、书籍(BK)、标准(STD)等相关资料的扩展。

## Q4:我不熟悉GitHub和Git,有啥快速入门的资源吗?
## Q4:我不熟悉 GitHub 和 Git,有啥快速入门的资源吗?

### A:
### A

- [包括:从 0 开始学习 GitHub 系列1-7](https://jtxiao.com/main/categories/%E5%B7%A5%E5%85%B7/)
- [超级简单的Git入门](https://backlog.com/git-tutorial/cn/)
- [包括:从 0 开始学习 GitHub 系列 1-7](https://jtxiao.com/main/categories/%E5%B7%A5%E5%85%B7/)
- [超级简单的 Git 入门](https://backlog.com/git-tutorial/cn/)
- [git - 简明指南](https://rogerdudler.github.io/git-guide/index.zh.html)
- [中文git-tips](https://github.com/521xueweihan/git-tips)
- [中文 git-tips](https://github.com/521xueweihan/git-tips)
- [GitHub 官方制作的 Git 速查表](https://education.github.com/git-cheat-sheet-education.pdf)

## Q5:我不熟悉Linux的各种命令,有啥快速入门的资源吗?
## Q5:我不熟悉 Linux 的各种命令,有啥快速入门的资源吗?

### A:
### A

- [中文Linux命令(linux-command)搜索引擎](https://wangchujiang.com/linux-command/)随用随搜Linux命令,而且还支持中文搜索
- [中文 Linux 命令(linux-command)搜索引擎](https://wangchujiang.com/linux-command/)随用随搜 Linux 命令,而且还支持中文搜索
- [新版 Linux 命令百科全书》(英文)](https://github.com/tldr-pages/tldr)

## Q6:我碰到一些命令/应用(比如vim, curl)、操作(比如vscode)或语言用法(比如Makefile)等不知到哪里能快速查找,怎么办?
## Q6:我碰到一些命令/应用(比如 vim, curl、操作(比如 vscode)或语言用法(比如 Makefile)等不知到哪里能快速查找,怎么办?

### A:
### A

- [Rico's cheatsheets](https://devhints.io/) 开源、全面的速查表网站,涵盖了前端、后端、运维、IDE 多个方面,而且界面友好简洁支持在线查看
- [所有与命令行相关的cheatsheet](http://cheat.sh/):号称「你唯一需要的命令行相关速查表」
- [所有与命令行相关的 cheatsheet](http://cheat.sh/):号称「你唯一需要的命令行相关速查表」

## Q7:我可以正常 `make run`,但使用 `make test` 命令后,构件过程报了许多错(`asm!` not found in scope),Autograding 也无法通过,怎么办?

### A:

这是由于内置的 `ci-user/riscv` 代码有错误,在 Autograding 时远程的 `riscv` 依赖被替换,导致编译失败。

**方法一:**

替换内置的 riscv 至正常版本,直接删除本地 `ci-user/riscv` 文件夹,替换为 [ Yakkhini / rust-based-os-comp2022](https://github.com/Yakkhini/rust-based-os-comp2022/tree/main/ci-user) 同位置的修复版本 `/riscv`。

**方法二:**

删除 `ci-user/overwrite.py` 21 行以下部分的依赖替换脚本。

**方法三:**

替换你实验文件夹中 `Cargo.toml` 的 riscv 依赖网址为 `https://github.com/rcore-os/riscv`(修改了网址的大小写)或 `https://gitee.com/rcore-os/riscv`(改为 Gitee 源),使脚本中的替换匹配失效。

**方法四:**

如果你能看到这个 QA,说明相关 Pull request 已被 merge,可以按 QA1 中方法更新仓库。
8 changes: 4 additions & 4 deletions ci-user/riscv/src/asm.rs
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ macro_rules! instruction {
pub unsafe fn $fnname() {
match () {
#[cfg(all(riscv, feature = "inline-asm"))]
() => asm!($asm),
() => core::arch::asm!($asm),

#[cfg(all(riscv, not(feature = "inline-asm")))]
() => {
Expand Down Expand Up @@ -58,7 +58,7 @@ instruction!(
pub unsafe fn sfence_vma(asid: usize, addr: usize) {
match () {
#[cfg(all(riscv, feature = "inline-asm"))]
() => asm!("sfence.vma {0}, {1}", in(reg) asid, in(reg) addr),
() => core::arch::asm!("sfence.vma {0}, {1}", in(reg) asid, in(reg) addr),

#[cfg(all(riscv, not(feature = "inline-asm")))]
() => {
Expand Down Expand Up @@ -87,7 +87,7 @@ mod hypervisor_extension {
match () {
#[cfg(all(riscv, feature = "inline-asm"))]
// Since LLVM does not recognize the two registers, we assume they are placed in a0 and a1, correspondingly.
() => asm!($asm, in("x10") rs1, in("x11") rs2),
() => core::arch::asm!($asm, in("x10") rs1, in("x11") rs2),

#[cfg(all(riscv, not(feature = "inline-asm")))]
() => {
Expand All @@ -112,7 +112,7 @@ mod hypervisor_extension {
#[cfg(all(riscv, feature = "inline-asm"))]
() => {
let mut result : usize;
asm!($asm, inlateout("x10") rs1 => result);
core::arch::asm!($asm, inlateout("x10") rs1 => result);
return result;
}

Expand Down
2 changes: 1 addition & 1 deletion ci-user/riscv/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@
//! - Wrappers around assembly instructions like `WFI`.

#![no_std]
#![cfg_attr(feature = "inline-asm", feature(asm))]
#![cfg_attr(feature = "inline-asm", feature(asm_const))]
extern crate bare_metal;
#[macro_use]
extern crate bitflags;
Expand Down
12 changes: 6 additions & 6 deletions ci-user/riscv/src/register/macros.rs
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ macro_rules! read_csr {
#[cfg(all(riscv, feature = "inline-asm"))]
() => {
let r: usize;
asm!("csrrs {0}, {1}, x0", out(reg) r, const $csr_number);
core::arch::asm!("csrrs {0}, {1}, x0", out(reg) r, const $csr_number);
r
}

Expand Down Expand Up @@ -36,7 +36,7 @@ macro_rules! read_csr_rv32 {
#[cfg(all(riscv32, feature = "inline-asm"))]
() => {
let r: usize;
asm!("csrrs {0}, {1}, x0", out(reg) r, const $csr_number);
core::arch::asm!("csrrs {0}, {1}, x0", out(reg) r, const $csr_number);
r
}

Expand Down Expand Up @@ -102,7 +102,7 @@ macro_rules! write_csr {
unsafe fn _write(bits: usize) {
match () {
#[cfg(all(riscv, feature = "inline-asm"))]
() => asm!("csrrw x0, {1}, {0}", in(reg) bits, const $csr_number),
() => core::arch::asm!("csrrw x0, {1}, {0}", in(reg) bits, const $csr_number),

#[cfg(all(riscv, not(feature = "inline-asm")))]
() => {
Expand All @@ -128,7 +128,7 @@ macro_rules! write_csr_rv32 {
unsafe fn _write(bits: usize) {
match () {
#[cfg(all(riscv32, feature = "inline-asm"))]
() => asm!("csrrw x0, {1}, {0}", in(reg) bits, const $csr_number),
() => core::arch::asm!("csrrw x0, {1}, {0}", in(reg) bits, const $csr_number),

#[cfg(all(riscv32, not(feature = "inline-asm")))]
() => {
Expand Down Expand Up @@ -178,7 +178,7 @@ macro_rules! set {
unsafe fn _set(bits: usize) {
match () {
#[cfg(all(riscv, feature = "inline-asm"))]
() => asm!("csrrs x0, {1}, {0}", in(reg) bits, const $csr_number),
() => core::arch::asm!("csrrs x0, {1}, {0}", in(reg) bits, const $csr_number),

#[cfg(all(riscv, not(feature = "inline-asm")))]
() => {
Expand All @@ -204,7 +204,7 @@ macro_rules! clear {
unsafe fn _clear(bits: usize) {
match () {
#[cfg(all(riscv, feature = "inline-asm"))]
() => asm!("csrrc x0, {1}, {0}", in(reg) bits, const $csr_number),
() => core::arch::asm!("csrrc x0, {1}, {0}", in(reg) bits, const $csr_number),

#[cfg(all(riscv, not(feature = "inline-asm")))]
() => {
Expand Down

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