74 lines
2.4 KiB
Markdown
74 lines
2.4 KiB
Markdown
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# RT-Thread for x86
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这是一份基础的RT-Thread针对x86的版本、移植，主要是能够在qemu中执行。以下说明主要针对Linux的环境，如果是Windows环境，请使用Env工具，同时请自行处理生成iso的方法。
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## 编译
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编译RT-Thread for x86版本，还需要一份支持newlib的工具链，可以通过以下地址获得：
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*[i386-unknown-elf_for_x86_64-pc-linux-gnu_latest.tar.bz2](http://117.143.63.254:9012/www/rt-smart/i386-unknown-elf_for_x86_64-pc-linux-gnu_latest.tar.bz2)
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下载后解压，然后在rtconfig.py中配置其中的EXEC_PATH变量
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```python
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if CROSS_TOOL == 'gcc':
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PLATFORM = 'gcc'
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EXEC_PATH = os.getenv('RTT_EXEC_PATH') or 'E:/Program Files/CodeSourcery/Sourcery_CodeBench_Lite_for_IA32_ELF/bin'
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```
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然后在x86 bsp目录下执行scons命令来编译：
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```bash
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scons
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```
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### 配置
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RT-Thread for x86的版本也支持menuconfig的配置方式，在Linux下可以使用`scons --menuconfig`的方式进行配置。
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因为menuconfig是一份字符界面的配置（Kconfig），在ubuntu下需要安装ncurses5的库
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```bash
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sudo apt install libncurses5-dev
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```
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## 运行
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在ubuntu下运行，请确保你安装了`qemu-system-i386`，`grub` 以及 `xorriso`软件包：
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```bash
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sudo apt install qemu-system-x86 grub-common xorriso
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```
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然后执行`./run.sh`命令可以使用qemu来模拟执行(它也会生成可启动的iso文件)
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```bash
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~/workspace/rt-thread/bsp/x86$ ./run.sh
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xorriso 1.4.8 : RockRidge filesystem manipulator, libburnia project.
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Drive current: -outdev 'stdio:bootable.iso'
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Media current: stdio file, overwriteable
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Media status : is blank
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Media summary: 0 sessions, 0 data blocks, 0 data, 135g free
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Added to ISO image: directory '/'='/tmp/grub.uLz91i'
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xorriso : UPDATE : 578 files added in 1 seconds
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Added to ISO image: directory '/'='/home/bernard/workspace/rt-thread/bsp/x86/root'
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xorriso : UPDATE : 582 files added in 1 seconds
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xorriso : NOTE : Copying to System Area: 512 bytes from file '/usr/lib/grub/i386-pc/boot_hybrid.img'
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ISO image produced: 6007 sectors
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Written to medium : 6007 sectors at LBA 0
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Writing to 'stdio:bootable.iso' completed successfully.
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\ | /
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- RT - Thread Operating System
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/ | \ 4.0.4 build Aug 22 2021
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2006 - 2021 Copyright by rt-thread team
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Floppy Inc : NEC765B controller Floppy Type : 2.88MB
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hello!
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msh />
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```
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在qemu下可以按Ctrl-A + X退出qemu。
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