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View Code? Open in Web Editor NEWA research project concerned with implementing Joern for analysis of binaries.
License: GNU General Public License v3.0
A research project concerned with implementing Joern for analysis of binaries.
License: GNU General Public License v3.0
For source code, storing the id of the corresponding function in each node has shown to be helpful in creating queries with good performance. We need this for the step 'functionToAPISymbols' in particular, that is used for similar function detection using 'bjoern-tools'.
I commented out the destructors for BjoernFunctionNode and BjoernInstructionNode as they seem to corrupt memory. This issue had gone unnoticed because the destructor of the base class wasn't virtual, and hence, the destructors were never called.
Looking up nodes by their address to determine edge destinations when writing CSVs is an idea that is fundamentally flawed as
(1) Functions and their entry basic blocks have the same address
(2) Basic blocks have the same address as their first instruction
In contrast, the BjoernNodes are actually unique, so I'm going to lookup by BjoernNode instead.
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