基于STM32动态加载

Question

在STM32上实现.o文件的动态加载，可以在程序运行中载入.o文件

Answer 1

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要基于STM32实现.o文件的动态加载，你需要遵循几个步骤。首先，确保你已经将所有必要的库添加到了你的项目中。然后，按照下面的步骤进行操作：

1. 创建一个包含.o文件的目录。

2. 在main.c中创建一个函数来处理.o文件的动态加载。

3. 使用arm-none-eabi-gcc编译器来编译.o文件。

4. 编译完成后，使用ld工具来连接.o文件。

5. 最后，使用load.o命令来加载.o文件。

以下是详细的代码示例：

#include <stdio.h>
#include <string.h>

void load_o_file(char *file_path) {
    // 将.o文件路径转换为相对路径
    char rel_path[256];
    strcpy(rel_path, "/path/to/your/o/file");
    
    // 调用arm-none-eabi-gcc编译.o文件
    int ret = arm-none-eabi-gcc -o o_file.o -nostdlib -L /usr/lib -lstdc++ -lm -I/usr/include ./src/main.c $rel_path;
    if (ret != 0) {
        perror("Error compiling .o file");
        exit(1);
    }
    
    // 调用arm-none-eabi-ld连接.o文件
    ret = arm-none-eabi-ld -o o_file o_file.o -Bstatic -Wl,-z,relro -T /usr/lib/ld-linux-aarch64.so.3 -shared -nostartfiles -nostdinc -nostdlib -Wl,--whole-archive -Wl,--no-whole-archive -Wl,--no-as-needed -Wl,--no-as-needed -Wl,--no-preload -Wl,--no-preload -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined -Wl,--no-undefined 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