有ASM编译器吗？ [英] Are there any ASM compilers?

问题描述

我知道ASM通常是通过汇编程序运行的，并且导致最终二进制文件或多或少的一对一映射，但这不是我要考虑的。

I know ASM is generaly run through an assembler and result in a more or less one to one mapping to the final binary but that's not what I'm thinking of.

是否有人开发了一种将ASM（或目标文件）视为一种可以在其上进行全部优化的编译语言的工具？虽然这样的工具可能在其中并不特别有用自我，它可以做一些事情，例如从封闭的源静态库中进行函数内联。

Does anyone make a tool that treats ASM (or object files) as a complied language that it can perform the full gamut of optimizations on? While such a tool might not be particularly useful in and of it's self, it could do things like function inlining from closed source static libraries.

推荐答案

虽然我同意 travelboy的答案，因为任何这样的汇编汇编语言都不再是汇编语言，我有提到有重新编译器和JIT，它们的源语言是机器语言（甚至不是汇编语言）。

while I agree with travelboy's answer in that any such 'compiled assembly' language wouldn't be assembly anymore, I have to mention that there are 'recompilers', and JITs whose source language is machine language (not even assembly).

这些程序需要一堆可执行代码，通常已经加载了并准备执行并对其进行转换，从而认识到变化构造体的完整性，并用更好，更快，更安全或更不同的版本替换即可。

These programs take a bunch of executable code, typically already loaded and ready to execute, and transform it, recognizing a varyiety of constructs and replacing with different versions, which can be better, faster, safer or just different.

qemu是一个例子。它是CPU模拟器的原始形式，它通过从给定的CPU二进制文件重新编译到另一个CPU中以执行代码来工作（二进制翻译）。但是，当两个CPU都相同时，它也可以工作，在这种情况下，转换允许特权代码通过突围硬件仿真器而在VM环境中执行。

qemu is an example of this. In it's original form is a CPU emulator that works by recompiling from a given CPU binary into a different CPU for execution (Binary Translation). But it can also work when both CPUs are the same, in this case the transformation allows privileged code to execute in a VM environment by 'breaking out' to the hardware emulator.

非常有趣的示例是HP Dynamo（旧Ars Technica文章），该研究软件通过重新编译HP PA-8000二进制文件实现了意外的加速。

A very interesting example is HP Dynamo (old Ars Technica article), a research software that achieved unexpected speedups by recompiling HP PA-8000 binaries.

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