Summary:
Now that the toplevel driver's cwd is passed through realpath, the
dance to preserve symlinks is redundant.
Reviewed By: jeremydubreil
Differential Revision: D4371055
fbshipit-source-id: c8aebaf
Summary:
For example: `infer --print-logs --stats -- clang -c hello.c`.
The option is not on by default.
This forwards all the output to log files to stdout or stderr as appropriate.
The multiplexing is very crude and can be improved later if needed if
stdout/err is too garbled by concurrent partial writes.
Reviewed By: jberdine
Differential Revision: D4365996
fbshipit-source-id: 7f2ab98
Summary:
Remove the need for a dummy initialization of log files.
The fact that we were not setting log files in some cases doesn't seem to be
relevant so I killed it. I observed no difference in output on simple clang and
javac examples. It will be easy to restore a better version of it in the next
diff if needed.
Also fix an fd leak: when opening new log files, previous ones were not being
flushed and closed (except at exit).
Reviewed By: jberdine
Differential Revision: D4365992
fbshipit-source-id: 940bc16
Summary:
There is not much to redirect except for an uninformative line before proper
logging files are set up. This is from before the current logging system, which
has builtin support for logging into custom files.
Reviewed By: jberdine
Differential Revision: D4365988
fbshipit-source-id: 044290a
Summary:
Instead of opening new log files each time with non-deterministic names, keep
appending to the same log files. This only removes the randomized part of the
names in the files. In particular, it keeps the name prefixes for, eg, clang
source files.
Also changed most "<executable>/<executable>-out.log" to simply "<executable>/out.log".
Reviewed By: jberdine
Differential Revision: D4365983
fbshipit-source-id: 46792dc
Summary: This more easily allow to switch between the different modes for handeling dynamic dispatch
Reviewed By: sblackshear
Differential Revision: D4367556
fbshipit-source-id: 795d2c4
Summary: 957b243 removed the last use of `Exe_env.get_tenv ~create:true`
Reviewed By: jeremydubreil
Differential Revision: D4364521
fbshipit-source-id: 819efee
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: Adding the information that a procedure has been modelled as part of the attributes, during the translation, instead of getting this information from where is the summary loaded from. This is more consistent with the use of the attributes in other parts of the analysis, but is also useful in the context of the lazy dynamic dispatch algorithm where the procedures, including the models, are cloned and reanalyzed with more specialized parameters. The information about whether a procedure is a model must persist when cloning the procedures.
Reviewed By: sblackshear
Differential Revision: D4356892
fbshipit-source-id: 40ff5ca
Summary:
When you try to log an error on a procedure P and a summary for P doesn't exist, the error gets quietly dropped on the floor.
But we should fail loudly instead, because this should only happen in the case of a user error.
Got burned by this today; I was trying to log an error on the *caller* of `Integer.parseInt`, but was accidentally logging it to `Integer.parseInt` itself instead.
Since no summary for that method exists, my error wasn't appearing.
Reviewed By: jvillard, jeremydubreil
Differential Revision: D4355546
fbshipit-source-id: db2a0e6
Summary:
Without this it's not always obvious which test fails. It also makes it easier
to mass-patch test failures from the CI jobs to replace expected outputs with
actual outputs (eg, when debugging osx frontend tests from linux).
Reviewed By: jberdine
Differential Revision: D4352205
fbshipit-source-id: 8887d7b
Summary:
The two concepts are not negation of each other. The type environment created by the different frontends is not guaranteed to contain a full view of the type hierarchy. In this case, there can be holes preventing Infer to prove that `t <: t'` if the type definition between `t` and `t'` is missing. There are now two functions:
# `is_known_subtype` when the subtyping relation can be proven
# `is_known_not_subtype` when it can be proven that there is no subtyping relation between two types
This diff is intended to make no functional changes but to add functionality to detect cast error angelically, i.e. assuming that the program is probably fine where there is not enough information to prove the cast error.
Reviewed By: jberdine
Differential Revision: D4345803
fbshipit-source-id: 39b79bc
Summary:
There's a lot of boilerplate work to be done when adding a new kind of source.
This diff tries to reduce the boilerplate by making a functor do all the work.
The functor:
(1) adds a notion of "footprint kind" to the source
(2) packages the source with a call site
Reviewed By: jvillard
Differential Revision: D4349224
fbshipit-source-id: 5e1701a
Summary:
The specialization of the methods based on the type of the arguments should only be performed when the type is an object type. This should in theory be always the case according to the Java semantics but the previous version of the code was relying on Infer to be correct all the way down the the method call:
Before this diff, the analysis on examples like this:
String foo(Object object) {
object.toString();
}
String bar() {
int[] array = {1, 2, 3};
foo(array);
}
This is a legit code that Infer is getting wrong because Java objects are translated as C objects instead of objects containing a C-style object. There may be other issues like this so it is safer to filter out the types when performing the substitution.
Reviewed By: jberdine
Differential Revision: D4345760
fbshipit-source-id: 1c74593
Summary:
We currently can only model the return values of functions as sources.
In order to model inputs of endpoints as sources, we need the capability to treat the formals of certain functions as sources too.
This diff adds that capability by adding a function for getting the tainted sources to the source module, then using that info in the analysis.
Reviewed By: jeremydubreil
Differential Revision: D4314738
fbshipit-source-id: dd7d423
Summary: Different analyses need different preanalyses to run. It doesn't make sense for all of the pre-analyses to be bundled together into one package.
Reviewed By: jvillard
Differential Revision: D4348243
fbshipit-source-id: 46a8ebd
Summary:
Adding #infer-capture-all et al. by hand is annoying and I always forget to do
it. Let infer figure that out.
Reviewed By: dulmarod
Differential Revision: D4339799
fbshipit-source-id: 55e52dc
Summary:
Seems like we cannot run 2 instances of Buck in parallel even when one uses
buck-out/ and the other buck-out/foo/.
Reviewed By: sblackshear
Differential Revision: D4347090
fbshipit-source-id: 7e65d2f
Summary: reactive capture spawns clang from within analysis. Time it takes to compile source code shouldn't be counted towards timout
Reviewed By: jvillard, cristianoc
Differential Revision: D4334037
fbshipit-source-id: 64f417d
Summary: Access to std::vector shouldn't be treated as SKIP. Implementation is simple enough to use one from std:: headers
Reviewed By: jvillard
Differential Revision: D4339577
fbshipit-source-id: d1fbbee
Summary: pattern matching we had before allowed many unintended functions to pass (such as `max_element`). Make matching much more strict
Reviewed By: jvillard
Differential Revision: D4313428
fbshipit-source-id: 189c522
Summary:
Previously, summaries worked by flattening the access tree representing the post of the procedure into (in essence) a list of functions from caller input traces to callee output traces.
This is inefficient in many ways, and is also much more complex than just using the original access tree as the summary.
One big inefficiency of the old way is this: calling `Trace.append` is slow, and we want to do it as few times as possible.
Under the old summary system, we would do it at most once for each "function" in the summary list.
Now, we'll do it at most once for each node in the access tree summary.
This will be a smaller number of calls, since each node can summarize many input/output relationships.
Reviewed By: jeremydubreil
Differential Revision: D4271579
fbshipit-source-id: 34e407a
Summary:
This commit avoids using the join operator for the widening
of the Map functor in ```abstractDomain.ml```
and ensures termination when ```ValueDomain``` is infinite
by using ```ValueDomain.widen```.
Closes https://github.com/facebook/infer/pull/535
Differential Revision: D4319797
Pulled By: sblackshear
fbshipit-source-id: 16f15e4
Summary: Don't warn on NotThreadSafe class, particularly when super is ThreadSafe
Reviewed By: sblackshear
Differential Revision: D4334417
fbshipit-source-id: 0df3b9d
Summary:
Most of the time code outside of project root is not interesting to the user - it's either system library or infer C++ model. Skip all of them.
Previous logic was doing something similar, but in more selective way.
I also need this change for D4313428
Reviewed By: jvillard
Differential Revision: D4339298
fbshipit-source-id: c7b5544
Summary:
This will simplify the InferPrint logic of checking what should/should-not be reported.
I will remove the issue names in Localise in a next diff.
Reviewed By: ddino
Differential Revision: D4334327
fbshipit-source-id: ebcfd6c
Summary:
This diff parses the build command args to directly handle the -version
option passed to java and javac, to make the integration with buck more
robust by ensuring that the version and no additional debug logging is
generated for `infer --debug -- javac -version`.
Reviewed By: jeremydubreil
Differential Revision: D4158011
fbshipit-source-id: e7d6b4d
Summary:
SuppressWarnings annotations are hardly used and add considerable
complexity due to requiring recompilation with an annotation processor.
Reviewed By: jvillard
Differential Revision: D4312193
fbshipit-source-id: c4fc07e
Summary:
This option is only useful if you want to treat casts angelically, but nothing else.
Since angelic is on by default and this option is off by default, it's basically useless.
Reviewed By: jeremydubreil
Differential Revision: D4334030
fbshipit-source-id: 3c0b0ed
Summary:
Most of the diff adds a way to run an existing test with different infer
options.
Also, do not run the Python script when capturing "analyze".
fixes https://github.com/facebook/infer/issues/518
Reviewed By: jberdine
Differential Revision: D4333762
fbshipit-source-id: 642acff
Summary:
Change the domain of SIOF to be based on sets of pvar * location instead of
single pvars. This allows us to group several accesses together. However, we
still get different trace elems for different instructions in a proc. We do two
things to get around this limitation and get a trace where all accesses within
the same proc are grouped together, instead of one trace for each access:
1. A post-processing phase at the end of the analysis of one proc collects all
the globals directly accessed in the proc into a single trace elem.
2. When creating the error trace, unpack this set into several trace elements
to see each access (at its correct location) separately in the trace.
This is a bit hacky and another way would be to extend the API of traces to
handle in-procedure accesses natively instead of shoe-horning them. However
since SIOF is the only one to use this, it introduces less boilerplate to do it
that way for now.
Also, a few .mlis for good measure.
Reviewed By: sblackshear
Differential Revision: D4299070
fbshipit-source-id: 3bbb5c2
Summary: These direct tests were still mostly relying on PHONY targets.
Reviewed By: jberdine
Differential Revision: D4326469
fbshipit-source-id: 37b2d0a
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:
The list of argument specs is a global ref inside `CommandLineOptions`, which
need to be reset to the empty list every time `parse` is called. Otherwise, we
get duplicated sections:
```
$ infer --help
Infer version v0.9.4-84d61cb
Copyright 2009 - present Facebook. All Rights Reserved.
Toplevel options
--inferconfig-home <dir> Path to the .inferconfig file
--project-root | -pr <dir> Specify the root directory of the project (default: /home/jul/infer)
Analysis (backend) options
Clang frontend options
Java frontend options
Toplevel options
[... the rest of the options -- without --inferconfig-home or --project-root,
with all the section headers again ...]
```
Reviewed By: jberdine
Differential Revision: D4333448
fbshipit-source-id: f91ea66
Summary:
The javac -classes_out option is used to set the results directory for
the buck build system integration.
Reviewed By: jeremydubreil
Differential Revision: D4162907
fbshipit-source-id: 75d0a6d
Summary:
We don't need to have separate `--` integration for compilation database. Instead use:
infer --compilation-db-files db.json <other_infer_options> // no -- anywhere!
Reviewed By: jberdine
Differential Revision: D4327570
fbshipit-source-id: caf0dc9
Summary:
This change is to support the development of CTL's DSL, where issues can be specified directly from the language, in the form of strings.
Severity is specified locally to the place where the check is defined
Reviewed By: ddino
Differential Revision: D4326594
fbshipit-source-id: 7b146ac
Summary:
If these collections don't encapsulate their state properly, there are bigger problems than thread safety issues :).
Plus, these warnings are less-than-actionable for non-Guava maintainers.
Reviewed By: peterogithub
Differential Revision: D4324277
fbshipit-source-id: cacfbf0
Summary:
Maintain an "ownership" set of access paths that hold locally allocated memory that has not escaped.
This memory is owned by the current procedure, so modifying it outside of synchronization is safe.
If an owned access path does escape to another procedure, we remove it from the ownership set.
Reviewed By: peterogithub
Differential Revision: D4320034
fbshipit-source-id: 64f9169
Summary: Turns out I forgot to close the fd returned by dup(2) so we were leaking a lot.
Reviewed By: jeremydubreil
Differential Revision: D4327389
fbshipit-source-id: 74574ac
Summary: This is required to maintain a set of owned access paths in a subsequent diff.
Reviewed By: jberdine
Differential Revision: D4318859
fbshipit-source-id: bd1a9fa
Summary:
This diff introduces place-holders strings in error messages and evaluates them
when an error needs to be reported.
Place-holders strings are of the form %name_of_helper_function%. They will be evaluated
using and helper function that gives a value.
For example if we need to display the name of a variable in the error message we will have:
".... %var_name%...."
then %var_name% will be evaluated in the ast node calling the appropriate
helper function and the results will replace %var_name% in the message.
Reviewed By: dulmarod
Differential Revision: D4313133
fbshipit-source-id: bf521ca
Summary:
We've had some issues with names like `arr$` appearing in error reports.
Any identifier name that contains $ cannot have come from source code because it is not a legal Java identifier.
This change should stop these reports because Errdesc.ml refuses to use temporary var names in error reports.
Reviewed By: jeremydubreil
Differential Revision: D4322305
fbshipit-source-id: 16237fe
Summary:
These checks were useful when developing Quandary, but do not fire anymore.
`AccessPath.raw_equal` is implicated as one of the top time-consuming functions in Quandary, so gating the assertion that calls it needlessly might save us some time.
Also minor cleanup: made the error messages a bit clearer and added an mli.
Reviewed By: jeremydubreil
Differential Revision: D4323653
fbshipit-source-id: 2a723b5
Summary:
The debug script wants to run InferClang on the file at hand, but that often
involves running a -cc1 command with InferClang, which is no longer supported.
This removes this functionality. The debug script now only dumps the AST to
biniou and its text representation.
Reviewed By: dulmarod
Differential Revision: D4319431
fbshipit-source-id: ef64912
Summary:
C stubs were causing issues with building:
- need OCaml stubs of the C stubs for byte compilation!
- brittle (to remain polite) support in ocamlbuild
Ctypes is awesome, use it instead.
Slight wrinkle on the previous statement:
- ioctl(2) is variable arguments, which is not officially supported by Ctypes but should work in our use-case
- I'm hardcoding the value of a C macro found in system headers
Reviewed By: jberdine
Differential Revision: D4319507
fbshipit-source-id: 352804a
Summary:
<ugly shameful hack>
Temporarily redirect stderr to /dev/null before calling `Javalib.get_class` so
as to avoid getting spammed with "Warning: unexpected attribute: Code" messages
when parsing Java files.
</ugly shameful hack>
I suspect that now that Javalib handles Java 8 this issue is more prevalent. An
issue/PR should be sent to Javalib too so that it's fixed upstream and we can
eventually remove the hack (t15039096).
Reviewed By: jberdine
Differential Revision: D4319466
fbshipit-source-id: af855ba
Summary:
This removes support for developing infer using Eclipse. If you use Eclipse,
consider using Atom/Emacs/vim instead, which have good OCaml/Reason support.
This allows us to get rid of a couple quirks:
- do not generated ocaml annots (this is very slow)
- move OCaml _build directory to infer/src/ where it makes more sense
Reviewed By: jberdine
Differential Revision: D4319480
fbshipit-source-id: 6f063fc
Summary: Allow backend to trigger compilation of extra files when it needs them. This will allow infer to capture less files initally and possibly speed up compilation
Reviewed By: cristianoc, jberdine
Differential Revision: D4231581
fbshipit-source-id: 181abea
Summary:
Before, the Interprocedural functor was a bit inflexible. You couldn't do custom postprocessing like normalizing the post state or coverting the post from an astate type to a summary type.
Now, you can do whatever you want by passing a custom `~compute_post` function.
Since `AbstractInterpreter.compute_post` can be used by clients who don't care to do anything custom, this doesn't create too much boilerplate.
Reviewed By: jvillard
Differential Revision: D4309877
fbshipit-source-id: 8d1d85d
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:
This is to prevent clang from changing AST to make it more performant and less readable.
Reported in https://github.com/facebook/infer/issues/522
+ unrelated `refmt` fix
Reviewed By: jvillard
Differential Revision: D4319731
fbshipit-source-id: 176dfcf
Summary: Rename the intermediate .exp.test files to .exp.test.noreplace so that they don't match the regexp used by `make test-replace`. Otherwise they can accidentally become .exp files that will show up in `git status`.
Reviewed By: cristianoc
Differential Revision: D4319436
fbshipit-source-id: df2ef21
Summary: lines end in '\n' so the last item in `lines.split('\n')` is always empty.
Reviewed By: jeremydubreil
Differential Revision: D4299036
fbshipit-source-id: b3cacbf
Summary:
Before the diff, the code was considering as Nullable any annotation ending with `...Nullable`, including `SuppressParameterNotNullable`.
Closes#533
Reviewed By: jberdine
Differential Revision: D4317356
fbshipit-source-id: 6091c0f
Summary: We're about to add another element to the abstract domain, and a 4-tuple is a bit too cumbersome to work with.
Reviewed By: jberdine
Differential Revision: D4315292
fbshipit-source-id: d04699f
Summary:
Substituting modules into Core.Std breaks the linking behavior of
module aliases, and so does including the module type of Core.Std in a
signature. So, for now, this diff exposes the broken functions in
Core's Gc, Signal, and Sys modules.
Reviewed By: cristianoc
Differential Revision: D4313140
fbshipit-source-id: d8fea00
Summary:
In checkers we use "let" clause to define formulas abbreviation.
This diff expands the use of such formula id when used.
This allows to evaluate the formula.
For example.
let f = f_def
let g = g_def
let h = f or g
will expand the use of f and g with their definition.
Reviewed By: martinoluca
Differential Revision: D4299542
fbshipit-source-id: 9d37dd0
Summary:
This diff adds basic support for parsing the arguments passed to the
build command directly from Config.
Reviewed By: dulmarod
Differential Revision: D4201480
fbshipit-source-id: bba6056
Summary:
Several Core functions silently wrap argument functions with catch-all
exception handlers that exit. This diff protects against these from
ever being used by deprecating them, which causes compilation failure if
they are used.
Reviewed By: jvillard
Differential Revision: D4271781
fbshipit-source-id: a096171
Summary:
Use In_channel and Out_channel operations instead of those in Pervasives. Don't
use physical equality on values that aren't heap-allocated since it doesn't help
the compiler generate faster code and the semantics is unspecified. Also use
phys_equal for physical equality.
Reviewed By: sblackshear
Differential Revision: D4232459
fbshipit-source-id: 36fcfa8
Summary:
Utils contains definitions intended to be in the global namespace for
all of the infer code-base, as well as pretty-printing functions, and
assorted utility functions mostly for dealing with files and processes.
This diff changes the module opened into the global namespace to
IStd (Std conflict with extlib), and moves the pretty-printing
definitions from Utils to Pp.
Reviewed By: jvillard
Differential Revision: D4232457
fbshipit-source-id: 1e070e0
Summary: Adding Buck `DEFS` macros for generating Infer genrules. The generated genrules can be used to run the analysis on any existing `java_library` targets.
Reviewed By: sblackshear
Differential Revision: D4291234
fbshipit-source-id: 6430e2e
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:
Make sl_file field strongly typed in the AST - store SourceFile.t instead of string. This will make it harder
to access raw string which shouldn't really be accessed before going through `SourceFile` module
Reviewed By: jvillard
Differential Revision: D4299468
fbshipit-source-id: e8ff87e
Summary:
The Java frontend translates exceptions by assigning them to the return value.
This leads to weird behavior when the return type of the function is void.
Already handled one case of this in Quandary (ignoring assignments of exceptions to return value), but was missing the case where null is assigned to the return value.
The frontend does this to "clear" the value of previously assigned exceptions.
Reviewed By: jeremydubreil
Differential Revision: D4294060
fbshipit-source-id: 6bef5ef
Summary:
We previously used `Procname.java_get_parameters` to compute the indices of parameters to taint, but this doesn't always work.
`java_get_parameters` omits the `this` param, which we may sometimes want to taint.
Use the actuals (already passed to `Sink.get`) instead
Reviewed By: jvillard
Differential Revision: D4285164
fbshipit-source-id: d462a0b
Josh Berdine
Jeremy Dubreil
Jules Villard
Sam Blackshear
Ryan Rhee
Andrzej Kotulski
Peter O'Hearn
Kihong Heo
Dulma Churchill
Martino Luca
Cristiano Calcagno
Dino Distefano