X64 Unwind Information I've had a fairly large number of e-mails with various people both inside & outside Microsoft explaining the AMD64 unwind data. I generally push them at the ABI documentation (which I've linked to inthisentry). But the ABI documentation really requires a complete rea...
Analyzing a first binary version of a program and unwind information associated with the first binary version of the program, performing optimization on the first binary version of the program to produce a second binary version of the program based at least in part on the results of the ...
Analyzing a first binary version of a program and unwind information associated with the first binary version of the program, performing optimization on the first binary version of the program to produce a second binary version of the program based at least in part on the results of the ...
When the debugger is examining the call stack, it may display the message "Stack unwind information not available. Following frames may be wrong." This warning indicates that the debugger is not certain that the frames in the call stack listed after this message are correct. ...
在DWARF6.4 Call Frame Information一节详细的描述了调用栈帧的定义。 2.1 Call Frame Table 抽象的说,整个栈帧计算机制的核心是一张大表: 可以使用readelf -wF xxx命令来查看通过elf文件中的.eh_frame解析出来的这张表: $ readelf -wF a.out...
每个 FDE 引用一个 Common Information Entry(CIE), CIE 保存共用的操作指令集合用于共享,所以多个 FDE 可以引用相同的 CIE。这些设计节省空间的同时,也增加了 unwind 需要的操作,当需要寻找某个 pc 对应的 CFA(Canonical Frame Address) 计算规则时,在找到 FDE 时可能会需要逐行计算直到找到 pc 所在的“行”。
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The developer,Mystical Bits, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see thedeveloper’s privacy policy. Data Not Linked to You The following data may be collected but it is not linked to your identity: ...
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DW_TAG_variable- Represents function variaable information DW_AT_location- describe the location of an object whose location changes over the object’s lifetime 2.2 DWARF Expressions 是调试器计算对象位置的表达式: All DWARF operations are encoded as a stream of opcodes that are each followed by ...