How do I get a call's return value

[eleven110807]

 
Hi,
   I want to get the return value of a call from the eax register.But the call instruction is the last one of a basic block.
   How do I get it?

Thanks a lot;

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Best Regards~

Liang Shuhuan

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网易Lofter，专注兴趣，分享创作！

[Reid Kleckner]

The easiest way is to use drwrap:

http://dynamorio.org/docs/drwrap_8h.html 

Get the PC of the function you want to wrap and pass it to drwrap_wrap().

Reid

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