LLVM仪器 [英] LLVM instrumentation

问题描述

最近，我正在用LLVM做一些研究.

Recently, I am doing some research with LLVM.

首先，我想向工具.bc文件写入一个通行证.

At first, I want to write a pass to instrument .bc file.

因此，它将记录我的.bc文件基本块的执行路径.

Thus, it will record the execution path of the basic block of my .bc file.

然后，我想将此.bc文件命名为.exe文件.请给我您的建议，如果您有一些使用LLVM的示例，请告诉我.

Then, I want to term this .bc file into .exe file. Please give me your suggestions and if you have some examples for instrumentation of LLVM, please show me.

推荐答案

LLVM已经内置了许多检测工具.在源代码树的lib/Transforms/Instrumentation目录中查看.

LLVM already comes with a number of instrumentation tools built-in. Take a look in the lib/Transforms/Instrumentation directory in the source tree.

最著名的通行证之一是 Address Sanitizer ，这是一种基于工具的内存错误探测器(有点像Valgrind，但速度要快得多). Address Sanitizer具有运行时组件+插入工具的LLVM传递；通行证居住在lib/Transforms/Instrumentation/AddressSanitizer.cpp中.在此页上 .

One of the best known passes is Address Sanitizer, an instrumentation-based memory error detector (kinda like Valgrind, but significantly faster). Address Sanitizer has a runtime component + a LLVM pass that inserts instrumentation; the pass lives in lib/Transforms/Instrumentation/AddressSanitizer.cpp. There's some description of how it works on this page.

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