On the Impact of Exception Handling Compatibility on Binary Instrumentation

On the Impact of Exception Handling Compatibility on Binary Instrumentation
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异常处理兼容性对二进制仪器的影响

DOI:
10.1145/3411502.3418428
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发表时间:
2020
期刊:
ACM FEAST
影响因子:
--
通讯作者:
Sekar, R.
Sekar, R.
中科院分区:
--
文献类型:
--
作者:
Priyadarshan, Soumyakant;Nguyen, Huan;Sekar, R.

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为了支持C++异常处理,编译器生成的元数据是有关代码布局的丰富信息来源。在Linux上,此元数据还用于支持堆栈跟踪、线程清理等功能。因此,Linux二进制文件也包含C代码的代码布局揭示元数据。即使是低级系统库中的手写汇编也包含在这样的元数据中。我们在本文中研究了这种元数据的含义,并表明它可以用来(A)提高反汇编的准确性,(B)与以前的研究相比,在功能边界识别方面获得显著更好的准确性,以及(C)作为对抗细粒度代码随机化的丰富信息来源。
To support C++ exception handling, compilers generate metadata that is a rich source of information about the code layout. On Linux, this metadata is also used to support stack tracing, thread cleanup and other functions. For this reason, Linux binaries contain code-layout-revealing metadata for C-code as well. Even hand-written assembly in low-level system libraries is covered by such metadata. We investigate the implications of this metadata in this paper, and show that it can be used to (a) improve accuracy of disassembly, (b) achieve significantly better accuracy at function boundary identification as compared to previous research, and (c) as a rich source of information for defeating fine-grained code randomization.
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