Convert tree-sitter AST to CFG for C programs. AST -> CFG algorithm is based on Joern, specifically CfgCreator.scala.
Clone https://github.com/tree-sitter/tree-sitter-c.git in the project root.
Then run python main.py tests/data/example.c --print_ast --cfg --draw
Open issues: roadmap.md
File parse.sh runs Joern and tree-sitter side by side to compare performance. Use joern-install.sh to install Joern first.
Benchmark 1: long stupid file - 10,000 lines of x++.
Output 2022-06-15 19:44, v1.1.891 of Joern:
(tree-sitter-py38) benjis@AM:~/code/ts$ bash tests/vs-joern/parse.sh --joern tests/data/10000.c
executing /home/benjis/code/ts/tests/vs-joern/get_func_graph.scala with params=Map(filename -> tests/data/10000.c)
Compiling /home/benjis/code/ts/tests/vs-joern/get_func_graph.scala
creating workspace directory: /home/benjis/code/ts/workspace
Creating project `10000.c` for code at `tests/data/10000.c`
moving cpg.bin.zip to cpg.bin because it is already a database file
Creating working copy of CPG to be safe
Loading base CPG from: /home/benjis/code/ts/workspace/10000.c/cpg.bin.tmp
Code successfully imported. You can now query it using `cpg`.
For an overview of all imported code, type `workspace`.
Adding default overlays to base CPG
The graph has been modified. You may want to use the `save` command to persist changes to disk. All changes will also be saved collectively on exit
script finished successfully
Some(())
real 0m14.143s
user 0m44.302s
sys 0m1.260s
(tree-sitter-py38) benjis@AM:~/code/ts$ bash tests/vs-joern/parse.sh --tree-sitter tests/data/10000.c
real 0m1.503s
user 0m1.385s
sys 0m0.111sBenchmark 2: Linux kernel 5.18.4 Output 2022-06-15 21:51, v1.1.891 of Joern:
(tree-sitter-py38) benjis@AM:~/code/ts$ time python main.py linux-5.18.4 --cfg --file > output_treesitter.txt
real 9m47.570s
user 9m4.308s
sys 0m5.854s
(base) benjis@AM:~/code/ts$ time ./joern/joern-cli/joern --script ./tests/vs-joern/get_func_graph.scala --params filename=linux-5.18.4
executing /home/benjis/code/ts/tests/vs-joern/get_func_graph.scala with params=Map(filename -> linux-5.18.4)
�[34mCompiling /home/benjis/code/ts/tests/vs-joern/get_func_graph.scala�[39m
creating workspace directory: /home/benjis/code/ts/workspace
Creating project `linux-5.18.4` for code at `linux-5.18.4`
Killed
Error running shell command: List(/home/benjis/code/ts/joern/joern-cli/c2cpg.sh, linux-5.18.4, --output, /home/benjis/code/ts/workspace/linux-5.18.4/cpg.bin.zip)
Exception in thread "main" java.lang.AssertionError: script errored:
at io.joern.console.ScriptExecution.runScript(BridgeBase.scala:253)
at io.joern.console.ScriptExecution.runScript$(BridgeBase.scala:229)
at io.joern.joerncli.console.AmmoniteBridge$.runScript(AmmoniteBridge.scala:5)
at io.joern.console.BridgeBase.runAmmonite(BridgeBase.scala:164)
at io.joern.console.BridgeBase.runAmmonite$(BridgeBase.scala:146)
at io.joern.joerncli.console.AmmoniteBridge$.runAmmonite(AmmoniteBridge.scala:5)
at io.joern.joerncli.console.AmmoniteBridge$.delayedEndpoint$io$joern$joerncli$console$AmmoniteBridge$1(AmmoniteBridge.scala:7)
at io.joern.joerncli.console.AmmoniteBridge$delayedInit$body.apply(AmmoniteBridge.scala:5)
at scala.Function0.apply$mcV$sp(Function0.scala:39)
at scala.Function0.apply$mcV$sp$(Function0.scala:39)
at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:17)
at scala.App.$anonfun$main$1(App.scala:76)
at scala.App.$anonfun$main$1$adapted(App.scala:76)
at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:563)
at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:561)
at scala.collection.AbstractIterable.foreach(Iterable.scala:926)
at scala.App.main(App.scala:76)
at scala.App.main$(App.scala:74)
at io.joern.joerncli.console.AmmoniteBridge$.main(AmmoniteBridge.scala:5)
at io.joern.joerncli.console.AmmoniteBridge.main(AmmoniteBridge.scala)
Caused by: io.joern.console.ConsoleException: Error creating project for input path: `linux-5.18.4`
real 499m56.583s
user 1193m14.686s
sys 7m26.020s