如何写GCC自己的code发电机后端？ [英] How to write your own code generator backend for gcc?
问题描述
我创造我自己的（很简单）字节code语言和虚拟机来执行它。它工作正常，但现在我想使用gcc（或任何其他免费提供的编译器）从一个普通的C程序生成字节code这台机器。所以，问题是，我该如何修改或扩展的gcc，以便它可以输出自己的字节code？请注意，我不希望编译我的字节code机器code，我想编译的C code到（我自己）字节code。
I have created my very own (very simple) byte code language, and a virtual machine to execute it. It works fine, but now I'd like to use gcc (or any other freely available compiler) to generate byte code for this machine from a normal c program. So the question is, how do I modify or extend gcc so that it can output my own byte code? Note that I do NOT want to compile my byte code to machine code, I want to "compile" c-code to (my own) byte code.
我意识到这是一个潜在的大问题，它可能是最好的答案是去看看gcc的源$ C $ C。我只是需要一些帮助，如何让这个开始。我估计，必须有关于这个问题，可以描述的过程中添加自定义生成器gcc的一些文章或书籍，但我还没有使用Google所发现任何东西。
I realize that this is a potentially large question, and it is possible that the best answer is "go look at the gcc source code". I just need some help with how to get started with this. I figure that there must be some articles or books on this subject that could describe the process to add a custom generator to gcc, but I haven't found anything by googling.
推荐答案
这是艰苦的工作。
例如我还设计我自己的建筑与我自己的字节code和想要生成C / C ++ code。与GCC它。这是我的方式怎么做的：
For example I also design my own "architecture" with my own byte code and wanted to generate C/C++ code with GCC for it. This is the way how I make it:
- 在首先应该阅读有关href=\"http://gcc.gnu.org/onlinedocs/gcc/\" rel=\"nofollow\"> GCC的手动的
- 也不忘过阅读 GCC内幕。
- 阅读有关编译器很多东西。
- 另外，也要看看这个问题和答案在这里。
- 谷歌获取更多信息。
- 问问自己，如果你真的准备好了。
- 确保有一个很好的网吧机器......你会需要它。
- 启动机器dependet文件添加到GCC。
- 在跨主机目标的方式GCC编译
- 检查code结果的十六进制编辑器。
- 请更多的测试。
- 现在，有乐趣与自己的架构：D
- At first you should read everything about porting in the manual of GCC.
- Also not forget too read GCC Internals.
- Read many things about Compilers.
- Also look at this question and the answers here.
- Google for more information.
- Ask yourself if you are really ready.
- Be sure to have a very good cafe machine... you will need it.
- Start to add machine dependet files to gcc.
- Compile gcc in a cross host-target way.
- Check the code results in the Hex-Editor.
- Do more tests.
- Now have fun with your own architecture :D
当你完成，你可以使用C或C ++只是没OS-dependet库（您目前对你的架构没有运行OS），你现在应该（如果你需要的话）编译许多其他库与交叉编译器有一个良好的框架。
When you are finished you can use c or c++ only without os-dependet libraries (you have currently no running OS on your architecture) and you should now (if you need it) compile many other libraries with your cross compiler to have a good framework.
PS： LLVM （的锵）更容易端口...也许你想从那里开始？
PS: LLVM (Clang) is easier to port... maybe you want to start there?
这篇关于如何写GCC自己的code发电机后端？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
