Underneath the Iceberg: Understanding and Mining the Underlying Errors of Error-Handling Code

EH-Digger is a bug detection tool for error-handling bugs. Manually constructing templates or error specifications requires much human effort and is difficult to accommodate the software evolution, while existing learning-based approaches are hard to learn real reasons of the error-handling code in many cases. The main reason of this limitation is that existing approaches only learn API calls near error-handling code snippets, instead of trying to understanding the underlying errors handled by these code snippets. Accordingly, we design EH-Digger, an automated tool to detect error-handling bugs by mining handling patterns of underlying errors.

• Tree-sitter 0.20.0
• Prefixspan 0.5.2
• numpy 1.12.1

• Download grammars for tree-sitter.

git clone https://github.com/tree-sitter/tree-sitter-c
git clone https://github.com/tree-sitter/tree-sitter-cpp

• Add the paths to these grammars to TreesitterInit.

Language.build_library(
  # Store the library in the `build` directory
  'build/my-languages.so',
  # Include one or more languages
  [
  Path1,
  Path2
  ]
)

• Run TreesitterInit.py.

sudo ./TreesitterInit.py

• EH-Digger requires the project to be structured as follow.

Working Dir
|
|----Test
|        |----project1
|        |----project2
|
|----TestResult
|        |----result1
|        |----return2

• Add the path of the Working Dir to Config.

workingDir = Working Dir

• Add the project name and corresponding error log patterns.

pInfoList = [[ProjectName, [Error Log Pattern],[Error Log Pattern],...]]

sudo ./EH-Digger.py

cat Working Dir/Test/ProjectName/Pattern
cat Working Dir/Test/ProjectName/Finded Bug