Luajit:将字节码编译为对象格式 [英] Luajit: compiling bytecode into object format

问题描述

关于 -b 选项的Luajit手册说:

The Luajit manual about the -b option says:

从输出文件名的扩展名中自动检测到输出文件类型:

• c — C源文件，导出的字节码数据.
• h — C头文件，静态字节码数据.
• obj或o-目标文件，导出的字节码数据(特定于OS和体系结构).
• 原始或任何其他扩展名-原始字节码文件(便携式).

• c — C source file, exported bytecode data.
• h — C header file, static bytecode data.
• obj or o — Object file, exported bytecode data (OS- and architecture-specific).
• raw or any other extension — Raw bytecode file (portable).

将其编译为目标文件是什么意思?我知道它会生成一个文件，然后可以将其与从C或C ++代码生成的其他目标文件链接.

What does it mean to compile it to object file? I know it produces a file which then can be linked with other object files generated from C or C++ code.

但这如何工作?一个人将如何使用从其他C代码生成的目标文件?在哪种情况下您会这样做?

But how does this work? How would one use the generated object file from other C code? And in which situation would you do it?

推荐答案

它将模块的字节码嵌入到常量数组中.

It embeds the bytecode for a module into a constant array.

如果您随后从可执行文件或共享库中导出此数组，则require将能够在其中找到它(因此无需搜索.lua源文件.)

If you then export this array from the executable or a shared library, require will be able to find it there (and thus not need to search for the .lua source file.)

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