Summary:
Currently cfg nodes are written into dot files in whatever order they
appear in a hash table. This seems unnecessarily sensitive, so this
diff sorts the nodes.
Reviewed By: dulmarod
Differential Revision: D4232377
fbshipit-source-id: a907cc6
Summary: Add some basic command line API to run Infer using Buck genrules. Remains to fix issues with absolute vs relative paths and to see how to create these genrules on the fly for a given java or android library.
Reviewed By: sblackshear
Differential Revision: D4245622
fbshipit-source-id: 1cda4ee
Summary:
Clean up code related to --changed-files-index option:
1. Store DB.SourceFileSet.t in DB.changed_source_files_set
2. Refactor rest of the code to use it
3. Bunch of minor changes to make code more consise
Reviewed By: jberdine
Differential Revision: D4238736
fbshipit-source-id: 51e5684
Summary:
Implement heuristic to capture more of the user code:
In C++ there is a lot of interesting code in header files. On the other hand,
that code gets included in multiple places and we don't want to capture it by default (for performance reasons).
Right now we capture everything from source file + all symbols from headers that source file needs.
New heuristic will extend "capturing everything" to matching header files (ie. capture everything in X.h if source file is X.cpp)
Reviewed By: jberdine
Differential Revision: D4238008
fbshipit-source-id: 0528250
Summary:
Dealing with symbolic links in project root is tricky. To avoid it, always normalize all paths to sources with `realpath`.
Changes to tests are expected - infer started to resolve symbolic links which screws up with our testing mechanism.
Reviewed By: jberdine
Differential Revision: D4237587
fbshipit-source-id: fe1cb01
Summary:
Before, we were using a set domain of strings to model a boolean domain.
An explicit boolean domain makes it a bit clear what's going on.
There are two things to note here:
(1) This actually changed the semantics from the old set domain. The set domain wouldn't warn if the lock is held on only one side of a branch, which isn't what we want.
(2) We can't actually test this because the modeling for `Lock.lock()` etc doesn't work :(.
The reason is that the models (which do things like adding attributes for `Lock.lock`) are analyzed for Infer, but not for the checkers.
We'll have to add separate models for thread safety.
Reviewed By: peterogithub
Differential Revision: D4242487
fbshipit-source-id: 9fc599d
Summary: Add new integration test for compilation databse integration. Because new test needs another flags in infer invocation, I created one directory per test.
Reviewed By: jberdine
Differential Revision: D4231659
fbshipit-source-id: 81bb355
Summary:
In Java, we handle unknown code by propagating behavior from the parameters of the unknown function call to the return value (or constructed object, in the case of a constructor). But we do this in a somewhat silly way--generating a new summary with these semantics at each unknown call site. Instead, this diff introduces these two options as predefined behaviors and adds specialized code for them.
As a side effect of this approach, unknown functions are no longer counted as passthroughs. This is ok; the original behavior was less of a reasoned decision and more of an unintended consequence of the way we decided to handle unknown code.
This new approach ought to be more efficient than the old one, and as a virtuous side effect it will be easier to specify how to handle unknown code in other languages like C++.
Reviewed By: jeremydubreil
Differential Revision: D4205624
fbshipit-source-id: bf97445
Summary: Run all java tests with project-root at `infer/tests`. Do it to keep things consistent between clang and java tests
Reviewed By: sblackshear
Differential Revision: D4233236
fbshipit-source-id: c3f24fd
Summary:
Run all clang tests with project-root at `infer/tests`. I need it because we'll start resolving symbolic links
soon and some tests would lead outside of project root which means we'd start seeing absolute paths in recorded tests.
Diff that does same thing for java tests: D4233236
Reviewed By: jberdine
Differential Revision: D4233194
fbshipit-source-id: c261a2b
Summary:
Let's introduce some concepts. A "known unknown" function is one for which no Java code exists (e.g., `native`, `abstract`, and `interface methods`). An "unknown unknown" function is one for which Java code may or may not exist, but we don't have the code or we choose not to analyze it (e.g., non-modeled methods from the core Java or Android libraries).
Previously, Quandary handled both known unknowns and unknown unknowns by propagating taint from the parameters of the unknown function to its return value. It turns out that it is really expensive to do this for known unknown functions. D4142697 was the diff that starting handling known unknown functions in this way, and bisecting shows that it was the start of the recent performance problems for Quandary.
This diff essentially reverts D4142697 by handling known unknowns as skips instead. Pragmatically, doing the propagation trick for Java/Android library functions (e.g., `String` functions!) matters much more, so i'm not too worried about the missed behaviors from this. Ideally, we will go back to the old handling once performance has improved (have lots of ideas there). But I need this to unblock me in the meantime.
Reviewed By: jeremydubreil
Differential Revision: D4205507
fbshipit-source-id: 79cb9c8
Summary:
Useful for refactoring purposes, to provide a list of modules in
dependency order.
Reviewed By: jeremydubreil
Differential Revision: D4232363
fbshipit-source-id: 2adaaf5
Summary:
Implement heuristics to get from corresponding source files for header files.
We already had initial implementation for CaptureCompilationDatabase - moved it and extended it
to handle C/C++/objC/objC++
Reviewed By: jberdine
Differential Revision: D4231864
fbshipit-source-id: 4516287
Summary:
introduce `AttributesTable.load_defined_attributes` which will return proc attributes only if the procedure is defined. In order to not mess up
with existing caching, create another hashmap to store those procdescs.
We need to do that because with reactive capture we no longer can assume that all proc attributes are final before analysis starts
Reviewed By: jberdine
Differential Revision: D4231575
fbshipit-source-id: e795bcb
Summary: The default `android.jar` used to compile Android code is just a list of empty method stubs that is used for the type checking. In order to improve the type information, we used to redirect the bootclasspath to another `android.jar` that was containing the method bodies and all the fields including the private ones. Since we no longer need the types in the models and the types in the libraries to match, this is now dead code.
Reviewed By: jberdine
Differential Revision: D4230510
fbshipit-source-id: 93417f3
Summary:
This will help during the creation of new checkers, and will prevent errors like misspelling of AST node names.
It will also make it possible to fail immediately during the parsing of CTL inputs.
Reviewed By: ddino
Differential Revision: D4205434
fbshipit-source-id: ed8631a
Summary: Make backend know filenames of compilation database. It will allow it to compile extra files when needed
Reviewed By: cristianoc
Differential Revision: D4231521
fbshipit-source-id: c462448
Summary: Pure refactoring simplifying the code doing the case analysis for execturing the cast instruction.
Reviewed By: dulmarod
Differential Revision: D4215238
fbshipit-source-id: 9f0f163
Summary: Currently the thread safety checker neglects to analyze and files methods we don't want to report on. Like constructors and private methods, and classes where no superclass is marked ThreadSafe. For interprocedural analysis we want to analyze all these to get summaries, even if we don't report on them.
Reviewed By: jberdine
Differential Revision: D4226515
fbshipit-source-id: 7571573
Summary:
`abs_source_file_from_path` is dangerous because
1. It's not trying to make path relative to `project_root` - you can't compare two files created with two different methods
2. It's making relative paths relative to `getcwd` instead of `project_root` which is different from `from_string` function.
Also remove unused `DB.inode_equal`
Reviewed By: cristianoc
Differential Revision: D4204891
fbshipit-source-id: c4c2f99
Summary:
1. Always store cpp model source_file with relative path. This will make them cache friendly independent of infer location
2. Distinguish between "relative to project root" and "relative to infer models src"
3. Unify `source_file_from_path` used by java and C frontends into one function. There are no improvements to that logic yet
4. Move `is_cpp_model_file` to use `source_file` instead of `filename`
Reviewed By: jberdine
Differential Revision: D4204548
fbshipit-source-id: 6e21771
Josh Berdine
Jeremy Dubreil
Andrzej Kotulski
Sam Blackshear
Dulma Churchill
Dino Distefano
Martino Luca
Peter O'Hearn
Ryan Rhee