Summary:
The Java models for resources are way to complex. The main issue I am facing with these models is that small changes in the analysis can affect the generation of the models in some weird ways. For instance, I get different specs for some of the models between my devserver and my devvm, which seems to be mostly related with the backend treatment of `instanceof`.
The objective here is to simplify the models as much as possible in order to:
1) make debugging regressions easier
2) get simpler specs and less modeled methods shipped in `models.jar`
Reviewed By: sblackshear
Differential Revision: D4536115
fbshipit-source-id: 577183a
Summary: The diff remove the no-op model for `Cursor.close()` by the frontend-based `Closeable` as resources mechanism where every call of the form `object.close()` removes the file attribute on `object` when `object` is of type `Closeable`.
Reviewed By: sblackshear
Differential Revision: D4519386
fbshipit-source-id: 83633d4
Summary: Those should be treated angelically during the analysis with the same end results
Reviewed By: sblackshear
Differential Revision: D4518930
fbshipit-source-id: ee5bae8
Summary: Not clear why we need to disable this case and in which case is Infer creating too many disjunctions.
Reviewed By: sblackshear
Differential Revision: D4509394
fbshipit-source-id: fbc106d
Summary:
Some classes may have deleted new operator for them. To fix it, run global `new` operator instead
```
struct X {
void* operator new(size_t) = delete;
};
X *p = new X; // compilation error
X *p = ::new X; // no compilation error
```
This change is following same strategy standard headers follow.
Reviewed By: jvillard
Differential Revision: D4500977
fbshipit-source-id: 20babfa
Summary:
Infer used to report null dereference when field was accessed later:
```
vector<int> v;
int& a = v[0]; // should be EMPTY_VECTOR_ACCESS here, but it wasn't reported
int b = a; // was NULL_DEREFERENCE here
```
To avoid this problem, model all accesses to vector as dereference of its internal `beginPtr` field.
Reviewed By: jberdine
Differential Revision: D4481942
fbshipit-source-id: 2142894
Summary:
Turns this was needed only because we want infer-out to be models/infer.
Passing `--buck` together with passing `-d models` to `javac` was achieving the
same thing in a more roundabout way.
Reviewed By: jeremydubreil
Differential Revision: D4423185
fbshipit-source-id: 7cafe3b
Summary:
Fixes issue with template argument deduction with enable_shared_from_this as argument
```
#include<memory>
template<class T>
void makeWeak(const std::shared_ptr<T>& x) {}
struct X : public std::enable_shared_from_this<X>{
};
void test() {
X x
makeWeak(x.shared_from_this()); // compilation failed here - it was unable to deduce template parameter of makeWeak
}
```
Reviewed By: jvillard
Differential Revision: D4414788
fbshipit-source-id: 4d19c53
Summary: Need to upgrade in order to specify some taint properties on a more recent `WebView` API.
Reviewed By: cristianoc
Differential Revision: D4382590
fbshipit-source-id: 0925742
Summary: Use the lazy dynamic dispatch by default in prod for the Java analysis
Reviewed By: sblackshear
Differential Revision: D4356872
fbshipit-source-id: 491e92e
Summary:
Turns out that swapping stdout and stderr using a temporary fd 3 was screwing
up with make's jobserver, who also uses fd 3!
Also, infer is partly to blame as it also calls `make`. Unsetting `MAKEFLAGS`
in infer tells `make` that the way infer calls `make` is independent from
parent `make` invocations.
Also, simplify the rules for direct tests and build system tests.
Reviewed By: jberdine
Differential Revision: D4328979
fbshipit-source-id: 96818e8
Summary:
In particular, the method for retrieving an element from the array, this should never be nil. Also added a model for count
similar to the one for NSString length.
Reviewed By: ddino
Differential Revision: D4306655
fbshipit-source-id: 0ecb25a
Summary: Our C++ model magic didn't work when instantiating smart pointers with volatile types. Fix it
Reviewed By: jvillard
Differential Revision: D4313271
fbshipit-source-id: 55ffb98
Summary: Using multicore introduces some flakiness when building the models. This leads to summries for the models that are not always the same after rebuidling from scratch.
Reviewed By: jberdine
Differential Revision: D4306468
fbshipit-source-id: 96933d6
Summary:
The way interfaces are dealt with led to a false positive,
where tryLock() works OK for a Lock but not for a ReentrantLock.
The solution is just to provide the model.
While I am at it I am adding some more standard tests for Lock and ReentrantLock, which were not present.
Reviewed By: sblackshear
Differential Revision: D4204551
fbshipit-source-id: 9b6de28
Summary: clang has very complicated logic what to translate based on `project_root` and filename. Add tests for different situations in regard of symbolic links in path/project_root
Reviewed By: jvillard
Differential Revision: D4168551
fbshipit-source-id: 586b364
Summary:
`install` will not do anything if the file didn't change, which should give
`make` more opportunities to not do work.
Reviewed By: jeremydubreil
Differential Revision: D4161918
fbshipit-source-id: 9b9061a
Summary:
Config.analyze_models, set by the INFER_ANALYZE_MODELS environment
variable, is redundant with Config.models_mode.
Reviewed By: jvillard
Differential Revision: D4047338
fbshipit-source-id: 4522d65
Summary: The Infer builtins can be used in the e2e tests, but those tests should not depend on the Infer models to avoid cyclic dependencies. This diff separates the models and the Infer builtins in two directories so that the test can depend on the builtins without depending on the models
Reviewed By: sblackshear
Differential Revision: D3929478
fbshipit-source-id: 7d0ab79
Summary:
Given that mangling now respects `extern "C" {}` declarations, pnames of C function will have no mangling and we don't need to discard mangled part from procname.
Move `malloc` detection to `get_builtin_pname_opt` function (together with all others)
Reviewed By: dulmarod
Differential Revision: D3804402
fbshipit-source-id: 9ae9991
Summary:
1. models no longer need access to private fields (shared_ptr needed that)
2. create macro for __attribute__((deprecated("__infer_replace_with_deref_first_arg"))) and use it in models
Reviewed By: jberdine
Differential Revision: D3791113
fbshipit-source-id: 532dd33
Summary:
Follow strategy that was done to `std::shared_ptr` model and translate
`std::unique_ptr<T>` as raw pointer `T*`.
As a bonus, model `operator[]` of array overload as dereference
Reviewed By: jvillard
Differential Revision: D3785031
fbshipit-source-id: 2c5b0a4
Summary:
This reverts commit 7e3f8ffc84980ea5bcb4dae63a1588c07460c946.
Workaround is no longer needed since new clang we use has fix for this:
https://llvm.org/bugs/show_bug.cgi?id=28519
Reviewed By: dulmarod
Differential Revision: D3791083
fbshipit-source-id: ec339f1
Summary:
1. Add capability to clang frontend to replace some function calls with another SIL code based on `__deprecated__` attribute.
2. Given this capability, use those attributes for shared_ptr getters to generate `Sil.Load` instruction instead of method call
3. Add test that mimics shared_ptr model, but it doesn't have that much scary C++ templated code
Reviewed By: jvillard, jberdine
Differential Revision: D3729176
fbshipit-source-id: 2a330d5
Summary:
Make std::shared_ptr<T> translated as T* inside infer. This will make reporting better
since smart pointers are really pointers not structs - this form is much easier for the analyzer to understand.
This requires changes to the model of shared_ptr as well.
Reviewed By: jvillard
Differential Revision: D3587255
fbshipit-source-id: b86fb36
Summary:
So far infer had very fragile mechanism to detect smart pointers. It was looking for "std" and "(shared|unique)_ptr" inside name string.
This is easy to trick (like mystd::shared_ptr) and not something we want.
Instead, inside models create models inside infer_std_model namespace. Then just "export" that model into std namespace
via `using shared_ptr = infer_std_model<T>;`
Reviewed By: jvillard
Differential Revision: D3703827
fbshipit-source-id: 9640fc2
Summary:
a) An update to build-infer.sh to avoid downloading/building 4.02.3
ocaml compiler when it is already present.
b) Add the ifdef to avoid this error on glibc systems:
clang -c -w libc_basic.c -o libc_basic.o
libc_basic.c:692:12: error: unknown type name '__WAIT_STATUS'
pid_t wait(__WAIT_STATUS stat_loc) {
^
Closes https://github.com/facebook/infer/pull/429
Reviewed By: akotulski
Differential Revision: D3704604
Pulled By: jvillard
fbshipit-source-id: d557f1b
Summary:
Use Itanium mangling for C++ functions/methods instead of raw type name. This is a step towards removing expensive `ti_raw` field from `type_info`.
For virtual methods, use mangled name of the method from base class in order for dynamic dispatch to work.
Reviewed By: dulmarod
Differential Revision: D3556118
fbshipit-source-id: e45edb5
Summary:
When analyzing C model in C++, we were seeing some SKIP function triggered by generated constructors/operators= for C structs.
In C they weren't present, but in C++ compiler generates them for us. To avoid this (and future) problems
with models, translate all functions that are needed when computing the model
Reviewed By: dulmarod
Differential Revision: D3561873
fbshipit-source-id: f8ad2a0
Summary:
There is nice hook inside glog/logging.h for all CHECK_(GT|LT|GE|...) macros.
This simplifies AST significantly which makes infer way more happy:
cda16b3443/src/glog/logging.h.in (L722-L724)
Reviewed By: jberdine
Differential Revision: D3522110
fbshipit-source-id: 70c94cb
Jeremy Dubreil
Andrzej Kotulski
Jules Villard
Sam Blackshear
Josh Berdine
Dulma Churchill
Peter O'Hearn
Martino Luca
Raghavendra Prabhu