error: stray ‘\342’ in program

最新推荐文章于 2024-11-20 23:19:09 发布
原创 最新推荐文章于 2024-11-20 23:19:09 发布 · 1.7w 阅读 · 5 ·
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本文解决了一种常见的编程问题，即程序中出现不明特殊字符导致的编译错误。通过使用Notepad++将文件编码从UTF-8转换为ANSI，可以有效解决此问题。

如果遇到下面的问题

error: stray ‘\342’ in program
error: stray ‘\200’ in program
error: stray ‘\235’ in program
error: stray ‘\342’ in program
error: stray ‘\200’ in program
error: stray ‘\230’ in program
error: stray ‘\342’ in program
error: stray ‘\200’ in program
error: stray ‘\231’ in program
error: stray ‘\342’ in program
error: stray ‘\200’ in program

有可能是存在中文字符，如果实在找不着字符，可以用notepad++打开 点格式，把文件转为ANSI编码

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/home/loongson/timer_module.c:10:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:10:1: error: stray ‘\240’ in program /home/loongson/timer_module.c: In function ‘my_timer_module_init’: /home/loongson/timer_module.c:11:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:11:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:11:27: error: expected ‘)’ before string constant /home/loongson/timer_module.c:12:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:12:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:13:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:14:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:15:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:16:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:17:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:18:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:19:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:20:1: error: stray ‘\240’ in program /home/loongson/timer_module.c: At top level: /home/loongson/timer_module.c:23:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:23:1: error: stray ‘\240’ in program /home/loongson/timer_module.c: In function ‘my_timer_module_exit’: /home/loongson/timer_module.c:24:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:24:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\302’ in program /home/loongson/timer_module.c:25:1: error: stray ‘\240’ in program /home/loongson/timer_module.c:25:27: error: expected ‘)’ before string constant make[2]: *** [/home/loongson/timer_module.o] Error 1 make[1]: *** [_module_/home/loongson] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.2.0-23-generic-pae' make: *** [all] Error 2
最新发布
12-03
```markdown ### 问题诊断 您遇到的大量错误： ``` error: stray ‘\302’ in program error: stray ‘\240’ in program ``` 这是典型的 **源码中包含不可见的 UTF-8 特殊字符（如全角空格、不间断空格 `U+00A0`）** 导致的编译失败。 > 🔴 原因：您复制粘贴的代码中混入了 **非 ASCII 字符**，例如： > - `\302\240` 是 UTF-8 编码下的 **NO-BREAK SPACE（不间断空格）** > - 这些字符在编辑器中看似“空格”，但 GCC 无法识别，报为“stray bytes” --- ### ✅ 解决方案 #### ✅ 第一步：删除旧文件，重新创建干净的源码 ```bash cd ~/kernel_timer_module rm -f timer_module.c Makefile nano timer_module.c ``` > ⚠️ 务必手动逐字输入以下代码，或使用安全渠道粘贴（见后文建议） --- #### ✅ 第二步：使用兼容 Linux 3.2 内核的正确代码（无特殊字符版本） ```c #include <linux/module.h> #include <linux/kernel.h> #include <linux/timer.h> #include <linux/jiffies.h> static struct timer_list my_timer; void my_timer_callback(unsigned long data) { printk(KERN_INFO "Kernel Timer Expired!\n"); } static int __init my_timer_module_init(void) { printk(KERN_INFO "Initializing Timer Module.\n"); init_timer(&my_timer); my_timer.function = my_timer_callback; my_timer.expires = jiffies + msecs_to_jiffies(3000); my_timer.data = 0; add_timer(&my_timer); return 0; } static void __exit my_timer_module_exit(void) { del_timer_sync(&my_timer); printk(KERN_INFO "Exiting Timer Module.\n"); } module_init(my_timer_module_init); module_exit(my_timer_module_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Your Name"); MODULE_DESCRIPTION("Timer module for kernel 3.2"); MODULE_VERSION("1.0"); ``` 📌 **保存时注意**： - 按 `Ctrl+O` → 回车确认 → `Ctrl+X` 退出 - 不要从网页/聊天窗口直接复制！极易带入隐藏字符！ --- #### ✅ 第三步：创建干净的 Makefile ```bash nano Makefile ``` 输入以下内容（注意缩进是 **Tab**，不是空格）： ```makefile obj-m += timer_module.o all: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules clean: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean install: sudo insmod timer_module.ko remove: sudo rmmod timer_module dmesg: dmesg | tail -10 ``` --- ### 🛡️ 如何避免“stray \302 \240”错误？ | 方法 | 说明 | |------|------| | **手动键入代码** | 最安全，杜绝隐藏字符 | | **使用纯文本模式粘贴** | 在 `nano` 中按 `Shift+Insert` 粘贴 | | **用 `cat > file.c` 输入** | 终端逐行输入，自动过滤格式 | | **检查文件是否干净** | 运行：<br>`od -c timer_module.c | grep -i c2`<br>若输出含 `\302` 则仍有问题 | --- ### ▶️ 编译与测试流程 ```bash make # 编译模块 sudo insmod timer_module.ko # 加载模块 dmesg | tail -5 # 查看日志（等待3秒） sudo rmmod timer_module # 卸载模块 dmesg | tail -2 # 验证退出信息 ``` 预期成功输出： ``` [ 123.456789] Initializing Timer Module. [ 126.456789] Kernel Timer Expired! [ 127.000001] Exiting Timer Module. ``` --- ### 💡 知识点 1. **`init_timer()` 与 `add_timer()`**：适用于 3.2 内核的老式定时器初始化方法。 2. **回调函数原型**：形如 `void func(unsigned long)`，通过 `.data` 传参。 3. **隐藏字符问题**：`\302\240` 是 UTF-8 的不间断空格，需避免复制引入。 ```
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