Summary: If seems that we were dropping succesful loaded classes for no reason
Reviewed By: sblackshear
Differential Revision: D4178079
fbshipit-source-id: 827c0b9
Summary:
Our patch to Javalib has been accepted, so we can parse programs with invokedynamic!
invokedynamic still crashes Sawja, but I have worked around this by replacing all invokedynamic's with invokestatic's before passing them to Sawja.
This means we can handle everything about invokedynamic except calling the correct function (I call a dummy function with the correct signature for now).
We can try to actually call the right method in the future.
Reviewed By: jvillard
Differential Revision: D4160384
fbshipit-source-id: a8ef4e1
Summary: When searching for cast errors, types that were not Java objects, e.g. arrays of primitive types were not taken into account, leading to incorrect class cast excpetion reports.
Reviewed By: sblackshear
Differential Revision: D4166184
fbshipit-source-id: 7157c95
Summary: Speed up capture on MacOS by caching results of realpath. Improvements to lint speed on MacOS will be sent later
Reviewed By: jvillard
Differential Revision: D4166902
fbshipit-source-id: 4d065bc
Summary:
This adds generic support for reporting error traces as usual infer issues
traces (instead of putting them in the textual description of the error) to
Trace.ml and SinkTrace.ml.
The siof checker is made to use these new traces, and gets an improved error
message mentioning the name of the problematic global as well, which requires a
slight API change in Pvar.re.
The support in Trace.ml is incomplete: passthroughs are ignored. This missing
feature will be needed by Quandary to migrate its error messages.
Reviewed By: sblackshear
Differential Revision: D4159542
fbshipit-source-id: 8c1101d
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:
- set SHELL to bash explicitly in Makefiles (Debian uses dash)
- avoid using system headers when using our own clang's headers in tests
- do not rely on the name of the object file to write the frontend debugging scripts. It turns out that `-o` is *not* always present in the arguments of `-cc1` functions so the `Option.get` could crash. Since we don't actually need to get the object file name, just a nice enough name, don't try to be smarter at guessing what object will be created and pick a different name built from the source name instead.
Reviewed By: akotulski
Differential Revision: D4159516
fbshipit-source-id: c7bc2b9
Summary:
There's not really a concept of callee here, so s/callee/callsite/, and "to"
suggests we get the callee whereas we update it, so s/to/with/.
Feel free to bikeshed further.
Reviewed By: sblackshear
Differential Revision: D4153426
fbshipit-source-id: 6ea762c
Summary:
It was defined in two places and I'm about to add a third, so let's share
instead.
Reviewed By: sblackshear
Differential Revision: D4153420
fbshipit-source-id: 3d2c519
Summary:
In some error conditions, it could happen that the log file directory
was created early in execution, and then deleted, causing the creation
of log files to then fail.
Reviewed By: sblackshear
Differential Revision: D4157986
fbshipit-source-id: 1548b08
Summary: If a procedure is both a source and a sink for the same value, and it's a sink first, you will get a false positive when applying the summary for the procedure.
Reviewed By: cristianoc
Differential Revision: D4145246
fbshipit-source-id: 97f0022
Summary:
This diff ports checkCopyright to Core, builds it separately from other
executables, and fixes the build command in the linter.
Reviewed By: jvillard
Differential Revision: D4148217
fbshipit-source-id: 8aefc98
Summary: Mark native methods as defined so that the analysis generates a summary for those methods. When analyzing Java projects compiled with Buck, the summaries for the dependencies methods of are retrieved from the classpath. In this case, having access to the summary is useful to access the attributes of a callee when the callee is part of a, previously analyzed, Buck target.
Reviewed By: sblackshear
Differential Revision: D4141362
fbshipit-source-id: 75888c8
Summary:
Only the python code passes --models, always does so, and only ever
passes Config.models_jar.
Reviewed By: jeremydubreil
Differential Revision: D4151094
fbshipit-source-id: 8f21c03
Summary:
Move code that initializes the InferAnalyze executable from
InferAnalyze.main to InferAnalyzeExe. This enables InferAnalyze.main to
be called from other executables without conflicts due to
initialization.
Reviewed By: jvillard
Differential Revision: D4137280
fbshipit-source-id: 3dd76db
Summary: Also use the executable as a default name prefix.
Reviewed By: akotulski, jvillard
Differential Revision: D4135539
fbshipit-source-id: 84ba011
Summary:
Analyses should handle methods whose code is unknown and methods whose summary is a no-op differently.
Previously, this was done correctly for some kinds of methods (e.g., native methods, which were recognized as unknown), but not for others (interface and abstract methods).
This diff makes sure we correctly treat all three kinds as unknown.
Reviewed By: jeremydubreil
Differential Revision: D4142697
fbshipit-source-id: c88cff3
Summary:
Location.nLOC was introducing a lot of complexity for little benefit (and edge cases were wrong anyway).
We can restore it in some simplified way if we find that we need it
Reviewed By: jeremydubreil
Differential Revision: D4139868
fbshipit-source-id: 4f8e033
Summary: This fixes the build when `./configure --disable-c-analyzers` is used.
Reviewed By: jberdine
Differential Revision: D4146818
fbshipit-source-id: bec4b48
Summary:
Fix potential performance problems in `CLocation` module
1. Don't call `Unix.stat` to compare files if it's enough to compare paths
2. Use C implementation of `realpath` and call it only when it's really necessary
This diff breaks `Location.nLOC` information for whole clang frontend, but it's going away soon anyway
Reviewed By: jvillard, jberdine
Differential Revision: D4132526
fbshipit-source-id: f01afe8
Summary: Having only place where the code runs the transformation of the Java bytecode into the JBir reporesentation allows to more easily start manipulating the JBir representation and the bytecode together and progressively move the translation based on bytecode instead of JBir.
Reviewed By: sblackshear
Differential Revision: D4137576
fbshipit-source-id: c483528
Summary:
Summaries are modified before saving from disk, for example the attributes of the postcondition can change.
I have observed flaky reports of the internal error NULL_TEST_AFTER_DEREFERENCE. Some attributes (e.g. assigned) are changed before saving, but the spec table in memory is not changed.
So in case:
1) the procedure is analyzed on-demand, then subsequent uses in the same process use the summary in memory with the unchanged attribute, and the issue is not reported.
2) the procedure is already on disk and loaded, then the loaded summary has the changed attributes, and the issue is reported.
Flakiness happens as because of parallelism, whether a procedure is analyzed already or whether it is analyzed on-demand, can change.
The normalization function can change the instrumentation of a symbolic heap because it uses the existing comparison functions, which ignore instrumentations.
So normalization can replace part of a symbolic heap with an identical one but where the instrumentation is different — this is what I have observed.
The diff uses a different comparison function where instrumentations are taken into account.
Reviewed By: jberdine
Differential Revision: D4140031
fbshipit-source-id: f4f119a
Summary:
Instead of the custom filtering done by `InferPrint --issues-tests`, use the
filtering done by `infer` and run without filtering for our e2e tests. We still
test the filtering for our build systems integration tests, and this diff
restores that behaviour for the ant test (hence the bugs removed from
ant/issues.exp).
Also add internal exceptions to most tests to get more signal out of them (eg,
knowing when we add assertion failures and the like).
Retire the old `--issues-tests` to limit the number of ways we do filtering.
Reviewed By: jeremydubreil
Differential Revision: D4131308
fbshipit-source-id: 35805cc
Summary:
curr_file is remnant of the past when we didn't have good location information
coming from Clang_ast_t location. But it was fixed ~1 year ago.
Reviewed By: jvillard
Differential Revision: D4139750
fbshipit-source-id: 4ce7235
Summary:
This will be useful to migrate the existing tests to using report.json to
output the list of bugs found by Infer. This will make the tests reflect what
happens in prod more faithfully: right now running with --issues-tests does its
own filtering starting from the specs.
Moreover, this will allow --issues-tests to support the Buck integration, where
the specs/ directory is not populated after a run (although I suppose we could
also copy them from buck-out/ for InferPrint's benefit).
Reviewed By: jeremydubreil
Differential Revision: D4130851
fbshipit-source-id: 0457fba
Summary:
This makes our python code work (instead of crashing) when the source file
should be found not from the current directory (or absolute path), eg with
`infer --project-root .. -- clang -c hello.c`.
Reviewed By: jeremydubreil
Differential Revision: D4130802
fbshipit-source-id: 001f72d
Summary:
If the project root contains ".." then it doesn't work as expected, eg
infer --project-root .. -- clang hello.c
doesn't report at all. Now it works.
Reviewed By: jeremydubreil
Differential Revision: D4125489
fbshipit-source-id: 06b10ad
Summary: These functions are also called when the summary is guaranteed to exist. Enforcing this within the API
Reviewed By: cristianoc
Differential Revision: D4126839
fbshipit-source-id: 305b484
Summary: For some reason, `Specs.is_active` was re-loading from the specs table the summary that should already be in scope.
Reviewed By: cristianoc
Differential Revision: D4124693
fbshipit-source-id: c0e9113
Summary:
The Quandary-style traces are too general for checkers like SIOF.
This diff adds a "suffix abstraction" of the trace for analyses that just care about sinks.
To show how to use it, we add it to SIOF.
Note: this diff converts the domain, but isn't actually doing the fancier reporting yet.
That will come in a future diff.
Reviewed By: jvillard
Differential Revision: D4124881
fbshipit-source-id: 5b9fd07
Summary: Right now there is no test for compilation database integration. Add one
Reviewed By: jvillard
Differential Revision: D4118769
fbshipit-source-id: 5591de7
Summary:
Our default strategy for handling unknown code is to propagate taint from the actuals to the return value.
But for commonly-used methods like `StringBuilder.append` (used every time you do `+` with a string in Java), this doesn't work.
The taint should be propagated to both the receiver and the return value in these cases.
I'm considering a solution where we always propagate taint to the receiver of unknown functions in the future, but I am concerned about the performance.
So let's stick with a few special string cases for now.
Reviewed By: cristianoc
Differential Revision: D4124355
fbshipit-source-id: 5b2a232
Summary: Other checkers are going to start using these, so they shouldn't live in the Quandary directory anymore
Reviewed By: jvillard
Differential Revision: D4124654
fbshipit-source-id: b1d5bdd
Summary: A must-have for reporting taint errors and any other interprocedural error where the trace is sufficiently complex.
Reviewed By: jvillard
Differential Revision: D4124072
fbshipit-source-id: 26b3b2b
Summary:
This diff adds a skeleton implementation of the capture and analysis
driver to infer.ml, and removes some unnecessary code from infer.py.
With this, individual capture and analysis modules can be added, or
moved from python.
Reviewed By: jvillard
Differential Revision: D4109547
fbshipit-source-id: 0dce2bf
Summary: Don't use a hardcoded string, and enable reports in --issues-tests.
Reviewed By: jvillard
Differential Revision: D4110731
fbshipit-source-id: 9922557
Summary:
ClusterMakefile need not depend on Sys.executable_name referring to
InferAnalyze, use Config.bin_dir instead.
Reviewed By: jvillard
Differential Revision: D4110730
fbshipit-source-id: c330bb3
Summary:
Child processes invoked in multicore mode get arguments using the usual
INFER_ARGS mechanism already, no need for a special case.
Reviewed By: jvillard
Differential Revision: D4110728
fbshipit-source-id: 0987216
Summary: Don't ignore errors coming from clang when there are exceptions raised by the frontend
Reviewed By: jvillard
Differential Revision: D4117375
fbshipit-source-id: f31d6cf
Summary:
The Quandary-style traces are too general for checkers like SIOF.
This diff adds a "suffix abstraction" of the trace for analyses that just care about sinks.
To show how to use it, we add it to SIOF.
Note: this diff converts the domain, but isn't actually doing the fancier reporting yet.
That will come in a future diff.
Reviewed By: jvillard
Differential Revision: D4117393
fbshipit-source-id: e473665
Summary: Other checkers are going to start using these, so they shouldn't live in the Quandary directory anymore
Reviewed By: jvillard
Differential Revision: D4117359
fbshipit-source-id: e3f151e
Summary: A must-have for reporting taint errors and any other interprocedural error where the trace is sufficiently complex.
Reviewed By: jvillard
Differential Revision: D4106352
fbshipit-source-id: b2677e6
Summary:
New version of clang plugin exports `-x` arg information as a part of
TranslationUnitDecl. Get it from there instead of reading it from
clang argv
Reviewed By: jvillard
Differential Revision: D4112652
fbshipit-source-id: 5c3af1f
Summary:
The build system may expect the assembly commands to run. The only issue with
assembly commands is that we shouldn't attach the plugin to them.
This diff also moves the logic of what to capture to the `Capture.capture`
function to be able to reuse code from Capture. This makes sense because the
Capture module is the one with the knowledge of what to actually capture or
not.
Reviewed By: akotulski
Differential Revision: D4096019
fbshipit-source-id: 7fc99e1
Summary: We want to skip readwrite locks for now, maybe report on their misuses later.
Reviewed By: sblackshear
Differential Revision: D4110998
fbshipit-source-id: 986f77e
Summary:
This diff moves the implementation that considers the default value of
--models to be Config.models_jar if it exists from analyze.py to ZipLib.
Reviewed By: cristianoc
Differential Revision: D4100421
fbshipit-source-id: 322fbcf
Summary:
Previously, we recorded direct sinks as sinks and transitive sinks as passthroughs. This makes it difficult to create an expanded interprocedural trace when recording an error because we can't distinguish between sinks (which we want to expand) and passthroughs (which we don't). This diff changes recording of sinks so that a sink is now the *last* function in a trace to call a sink. To find out what the original sink was, the summary for the transitive sink in the trace will now need to be (recursively) expanded until we bottom out in the original sink.
Will do the same for sources in a follow-up diff.
Reviewed By: cristianoc
Differential Revision: D4103759
fbshipit-source-id: 6f435f5
Summary:
This diff unifies the --specs-library and --zip-specs-library options,
delaying the point where their relative order gets lost to at least
after option parsing. This also moves the treatment of non-cached jar
libraries from Config to where they are used in ZipLib. The
implementation of expanding the cached jars is slightly simplified and
untangled from option parsing.
Reviewed By: jvillard
Differential Revision: D4100015
fbshipit-source-id: cf840a7
Summary: This is assumed everywhere, and so set it in `ClangWrapper` instead of `InferClang`
Reviewed By: jberdine
Differential Revision: D4095766
fbshipit-source-id: f77625e
Summary:
See code comment about `throw exn` being translated as `return exn`.
This problem was revealed by D4081279, which started grabbing access paths from exceptions.
Reviewed By: jvillard
Differential Revision: D4096391
fbshipit-source-id: 9d91513
Summary:
this makes frontends no longer depend on SymExec.ml. `ModelBuiltins` was split into two modules:
- `BuiltinDecl` with procnames for builtins (used to determine whether some function is a builtin)
- `BuiltinDefn` with implementations used by `SymExec`
- they both have similar type defined in `BUILTINS.S` which makes sure that new builtin gets added into both modules.
During the refactor I ran some scripts:
`BuiltinDecl.ml`:
let X = create_procname "X"
cat BuiltinDecl.ml | grep "create_procname" | tail -70 | awk ' { print $1,$2,$3,$4,"\42"$2"\42"} '
then manually confirm string match. Exceptions:
"__exit" -> "_exit"
"objc_cpp_throw" -> "__infer_objc_cpp_throw"
__objc_dictionary_literal
nsArray_arrayWithObjects
nsArray_arrayWithObjectsCount
`BuiltinDefn.ml`:
let X = Builtin.register BuiltinDecl.X execute_X
cat BuiltinDecl.ml | grep "create_procname" | tail -70 | awk ' { print $1,$2,$3,"Builtin.register BuiltinDecl."$2,"execute_"$2} '
then, fix all compilation problems
Reviewed By: jberdine
Differential Revision: D3951035
fbshipit-source-id: f059602
Summary: Doing `sychronized(A.class)` where `A` is an inner class was not previously recognized by the `GuardedBy` checker.
Reviewed By: peterogithub
Differential Revision: D4095094
fbshipit-source-id: c832f9e
Summary:
Now that it's possible to run clang wrapper as a function from another process,
Logging module cannot rely on `Config.current_exe` to determine which directory
it should write to.
Reviewed By: jeremydubreil
Differential Revision: D4095455
fbshipit-source-id: d989b06
Summary:
InferClang knows what to do if its name ends in ++. So it is not
necessary to pass whether or not the original clang executable ended in
++ to InferClang using the the INFER_XX environment variable. Instead,
create an InferClang++ symbolic link and make the clang wrapper call
either InferClang or InferClang++ as needed.
Reviewed By: jvillard
Differential Revision: D4078416
fbshipit-source-id: 3b5d5d0
Summary:
We issue a thread safety warning on a class not
marked ThreadSafe, when it has a super that is. This makes some sense. But,
it will be nice to remind that a super is so maeked, else the mesg could
seem out of context or surprising
Reviewed By: sblackshear
Differential Revision: D4075145
fbshipit-source-id: ebc2b83
Summary:
This diff revises the makefiles for java tests so that they are based on
the files actually produced and depended on, instead of the existing
imperative style. This is, I think, clearer and easier to modify, and
enables a little more parallelism.
Reviewed By: jvillard
Differential Revision: D4072560
fbshipit-source-id: c16d4bd
Summary: Now that InferClang is in ocaml there is nothing stopping us from exposing functionality of `InferClang` as a function in addition to binary
Reviewed By: jvillard
Differential Revision: D4081026
fbshipit-source-id: 86d500b
Summary:
Change command line options for dynamic dispatch to capture that the
alternatives are mutually exclusive.
Reviewed By: jeremydubreil
Differential Revision: D4074540
fbshipit-source-id: c329717
Summary: The lazy dynamic dispatch algorithm works by re-analyzing the generic methods with the more specialized types encountered during the symbolic execution. In order to do that, the analysis must access the procedure description of the method to reanalyze in order to run the analysis of the specialized procedure description on demand. This diff adds the procedure description on the summary as the summary are stored in the Buck cache and can easily be retrieved by procname.
Reviewed By: sblackshear
Differential Revision: D4077415
fbshipit-source-id: c2f1cc8
Summary:
- do a semantic analysis of each variable initializer to figure out if they need initialization
- add a flag to globals that is true when they are `constexpr`. In that case, no analysis is needed as the user + compile guarantee that it is a compile-time constant.
Reviewed By: sblackshear
Differential Revision: D4081273
fbshipit-source-id: 44dbe29
Summary:
Right now, taint gets lost if it flows into a constructor or procedure whose implementation is missing.
Since the core Java (e.g., String) and Android classes (e.g, Intent) are among these, this is bad.
We could handle this by writing a bunch of models instead, but that would be a lot of work (plus we may still miss cases).
Reviewed By: jvillard
Differential Revision: D4051591
fbshipit-source-id: 65851c8
Summary: For some reason, the frontend was always caching the name of the translated classes even when the `--dependencies` was not passed
Reviewed By: jberdine
Differential Revision: D4074225
fbshipit-source-id: 8aa2c79
Summary:
Merging the results directories of targets on buck projects involved creating symbolic links into buck-out.
The bulk of files are .attr files: one per procedure. Creating these links can be a bottleneck, and the merge phase can be slower than the analysis phases on projects with many procedures.
This diff introduces multilinks to speed up merge.
A multilink is a file `multilink.txt` containing a sequence of paths
```
path/to/file1.ext
path/to/file2.ext
...
```
A multilink file is a compact way to represent a link for each entry.
This diff creates a multilink file for each `attributes/dir` directory, instead of one symbolic link for each file.
Reviewed By: jberdine
Differential Revision: D4067428
fbshipit-source-id: 911f8a9
Summary: The frontend replaces global variables that are constant with their values as a quick hack to improve the precision of the analysis. This should apply to `constexpr` too.
Reviewed By: dulmarod
Differential Revision: D4058097
fbshipit-source-id: be4fea6
Summary: This diff simplifies the workflow of creating the procedure descriptions. Instead of creating the all procedure descriptions in a first step and translating the method bodies afterwards, it is simpler to translate to do the two in one step.
Reviewed By: cristianoc
Differential Revision: D4067674
fbshipit-source-id: be9e853
Summary: Doing like this makes it easier to keep the phony declarations in sync with the target definitions
Reviewed By: jvillard
Differential Revision: D4067679
fbshipit-source-id: 723bc0e
Summary: Fix the resolution of symbolic links. The previous version did not work if the path itself was not a symbolic link, but there was a symbolic link somewhere up in the path tree. For example: `path/to/file` where `file` is not a symbolic link, but `to` is a symbolic link.
Reviewed By: jberdine
Differential Revision: D4062947
fbshipit-source-id: 394221d
Summary: Creating a "fake" procedure description the methods that are called is no longer required by the backend. So this diff cleans up the creation of the procedure descriptions
Reviewed By: jberdine
Differential Revision: D4057185
fbshipit-source-id: b444756
Summary: This code is an old experiement and has never really be used in prod because it was creating false positive. Dealing static final fields should be done in the backend instead so that it can used by the different languages C, Objective C, C++ and Java.
Reviewed By: jberdine
Differential Revision: D4055292
fbshipit-source-id: f1dc715
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:
Also be more careful when escaping arguments and create a module for shared
functionality between the clang frontend and the buck compilation database.
Reviewed By: jberdine
Differential Revision: D4036627
fbshipit-source-id: c981184
Summary: Some arguments passed from infer.ml to infer.py were only used to pass further to infer.ml invocations. Those args should be passed by env variable anyway (???)
Reviewed By: jberdine
Differential Revision: D4048003
fbshipit-source-id: 6f5fbeb
Summary:
Fix an issue where, when `-reactive` mode is used, files captured in the first second are not considered modified, and are not analyzed. This happens because file timestamps are used, and the resolution is one second.
Change the front-ends to change the timestamp of the directory where artifacts are created, so that the timestamps are 1 second in the future.
Small reactive commands such as the following now analyze correctly:
rm -rf infer-out && infer --reactive -- clang -c test.c
Reviewed By: jberdine
Differential Revision: D4050689
fbshipit-source-id: 6271860
Summary:
Move compilation database into separate module which loads said database from json file.
It will allow to load database from json file without calling buck.
Reviewed By: dulmarod
Differential Revision: D4049255
fbshipit-source-id: b2fa29f
Summary:
The integration would not work if other arguments were passed to Buck via infer
using Xbuck.
Reviewed By: akotulski
Differential Revision: D4044371
fbshipit-source-id: 742b5b3
Summary:
Declared and defined procedure attributes are now saved in different files (hashed_name.decl.attr and hashname.attr).
We always try to load using the filename of defined procedure attributes first,
and fall back to loading the file for declared ones if it does not exist.
The logic for replacing an existing file stays the same, with one extra thing:
when a file for a defined attribute is written, the one for the declared one
is deleted if it exists.
At the end of a capture, either a declared or a defined file exist, but not both.
The reason for this change is that when captures of different subprojects are
merged together, it can happen that a link gets created to a declared attributes
file even though a defined one exists, so the body of the procedure will not be analyzed.
After this diff, both links will be created, and the defined one will be loaded
by the back-end.
Reviewed By: dulmarod
Differential Revision: D4037423
fbshipit-source-id: 74fb7e6
Summary: failing to resolve was making the Java analysis to report errors with absolute paths instead of relative paths.
Reviewed By: sblackshear
Differential Revision: D4032764
fbshipit-source-id: e316193
Summary:
Python isn't needed anymore to pass options between `infer` and `InferClang`.
However, it is still needed to set up `PATH` so that we pick up compilation
commands.
Reviewed By: jberdine
Differential Revision: D4008469
fbshipit-source-id: 05c5716
Summary: This avoids issues where the command-line may get too large.
Reviewed By: jberdine
Differential Revision: D4008328
fbshipit-source-id: c1558b9
Summary:
This also adds `-a compile` support to `InferClang`. This is needed for the
`xcodebuild` integration, which is hard to fold into the same binary as the
rest.
Reviewed By: jberdine
Differential Revision: D4008262
fbshipit-source-id: 0bbd53f
Summary:
Checker for the Static Initialization Order Fiasco pattern:
https://isocpp.org/wiki/faq/ctors#static-init-order
1. Collect all globals (transitively) accessed in any given procedure.
2. Once the interprocedural analysis has finished, look at globals accessed in
initializers that do not belong to the current translation unit.
Reviewed By: sblackshear
Differential Revision: D3780266
fbshipit-source-id: 1d07161
Summary:
Create dummy functions representing the initializers of global variables. This
is so we can implement checks in the backend that can look at the initializer
expressions of global variables. We try not to create these dummy functions
when the initializer is not present, although for some reason we sometimes end
up with empty initializers.
Also add source file info to global variables in the backend (Pvar.re).
Reviewed By: sblackshear
Differential Revision: D3780238
fbshipit-source-id: 2dca87e
Summary:
There's no reason for infer to be in lib/ anymore, move it to the same place as
the other binaries. Thus all binaries are in the same directory and Config.ml
can better know where things are.
Reviewed By: jberdine
Differential Revision: D4015958
fbshipit-source-id: c5e851f
Summary: `tput cols` spams the terminal when it finds `$TERM` confusing. Reimplement what we need, which is very little, in C.
Reviewed By: jberdine
Differential Revision: D3960620
fbshipit-source-id: afe357e
Summary:
Before, if I wrote code like
```
x = src()
sink(x)
sink(x)
```
we would report three times instead of two.
The first flow would be double-reported.
Reviewed By: jeremydubreil
Differential Revision: D4024678
fbshipit-source-id: fcd5b30
Summary: when a method has writes to a field outside of synchrnoization, issue an appropriate error message identifying the fields
Reviewed By: sblackshear
Differential Revision: D4015612
fbshipit-source-id: 4f697fc
Summary:
This diff adds a make target to generate interface files from
implementation files. These generated interface files can then be used
as a starting point for documenting and restricting the exposed module
interface. For example, to generate an interface for JavaTaintAnalysis.ml,
execute:
```
make -C infer/src M=quandary/JavaTaintAnalysis mli
```
Note that this relies on `ocamlc -i`, which for reason currently
produces syntactically ill-formed files.
Reviewed By: sblackshear, jvillard
Differential Revision: D3998175
fbshipit-source-id: f653737
Summary: Also make sure it's not dead code, so we don't break it again by accident.
Reviewed By: jeremydubreil
Differential Revision: D4015793
fbshipit-source-id: 017d862
Summary:
During the development/debugging of AST checks, it will be possible to emit dotty graphs with a representation of the evaluation of formulas.
The formulas, expressed using the notation of CTL (https://en.wikipedia.org/wiki/Computation_tree_logic) are represented in a graph alongside the current ast-node and their final evaluation result (green for true, red for false)
To get the dotty graph, run infer with the `--debug` flag
Reviewed By: ddino
Differential Revision: D3937787
fbshipit-source-id: 163e17d
Summary: Avoid polluting stdout and stderr for executables that are always supposed to log into files.
Reviewed By: dulmarod
Differential Revision: D4008888
fbshipit-source-id: 1366498
Summary: Nothing mutates those fields so there is no need to make them `mutable`
Reviewed By: cristianoc
Differential Revision: D4009166
fbshipit-source-id: b840a4b
Summary:
This fixes a perf issue on large files, where a copy of the type environment and control flow graph were loaded for each procedure analyzed in the file.
If the type environment or the control flow graph are big, and the file contains many procedures, this can cause a big memory overhead.
Reviewed By: jvillard
Differential Revision: D4008655
fbshipit-source-id: 11d07c1
Summary:
This changes executions of the former InferClang into a function call. In
particular, it can be called several times per execution.
The new InferClang must be called as if it was clang, and knows how to run
clang with our plugin to get the AST of the source file.
Reviewed By: akotulski
Differential Revision: D3981017
fbshipit-source-id: 7af6490
Summary:
This diff removes the unused support for reporting props, which enables
refactoring so that the 'base' directory has no dependencies, and the
'IR' directory depends only on 'base'.
Reviewed By: jvillard
Differential Revision: D3981352
fbshipit-source-id: 3700a23
Summary:
Color modules in dependency graph based on directory, and cluster
modules together into a subgraph if their directory is listed in the
`clusters` variable of infer/src/Makefile.
Reviewed By: akotulski
Differential Revision: D3979253
fbshipit-source-id: dffd76b
Summary: Introduce `--enable-ocamlopt-custom-cc` configure flag (disabled by default). Normally it doesn't have to be set. However, when cross-compiling infer itself for another platform it may have to be set.
Reviewed By: jberdine
Differential Revision: D3995032
fbshipit-source-id: ce2fd72
Summary: it seems to have no effect on analysis. As such it should be ok to add cg nodes for builtin model calls
Reviewed By: jberdine
Differential Revision: D3967399
fbshipit-source-id: 06c32e5
Summary:
This changes the algorithm for pure join to keep the constraints that,
after normalization, occur in both arguments. Previously pure join
would normalize, filter, and then union the constraints of the
arguments.
Reviewed By: sblackshear
Differential Revision: D3970394
fbshipit-source-id: 3dc1672
Summary:
This is needed for later: InferClang will no longer be started once for each
source file to be analysed. Instead, it will be called to analyse several files
at once, and will analyse them one by one. Thus, `clang_lang` and `source_file`
are moved to `cFrontend_config` as references.
The biggest change this entailed was the new logging infrastructure, which was
depending on `Config.source_file`. This diff moves the logic entirely to
`Logging`, and changes the API so that executables wishing to log into files
have to set it up using `Logging.set_log_file_identifier`. This can be called
several times during the execution, allowing to dynamically change the log file
(eg, when analysing several source files one by one!).
Reviewed By: jberdine
Differential Revision: D3944148
fbshipit-source-id: 6129090
Summary:
Let's start migrating some of our bash script to OCaml to make them easier to
maintain and extend.
For now replace just one script and put it in lib/clang_wrappers/ at compile
time, where the former script used to be. Further simplifications will come
later.
Reviewed By: jberdine
Differential Revision: D3929988
fbshipit-source-id: b2d8b37
Summary:
We were previously leaking the passthroughs of the callee into the caller.
We definitely don't want to do this since it could make the summaries higher up in the call stack explode.
If we need to know the passthroughs of a callee, we can always read them from the callee's summary.
Reviewed By: jeremydubreil
Differential Revision: D3972679
fbshipit-source-id: 5b5903f
Summary: That data was never used and removing it can simplify frontends quite a bit.
Reviewed By: jberdine
Differential Revision: D3967389
fbshipit-source-id: d65c3da
Summary: The code has not much to do with IR and should be part of backend/ directory.
Reviewed By: sblackshear
Differential Revision: D3950834
fbshipit-source-id: 315ea19
Summary:
Move most of common dependencies out of backend/ into base/
Diff doesn't change any code and hence files in base/ may still depend on
code outside of base/. There will be followup diff cleaning those up.
There are also files that maybe should be in common/ but haven't been moved there yet.
Reviewed By: jberdine
Differential Revision: D3950695
fbshipit-source-id: 00612b1
Summary:
Just adds a language agnostic option to skip the analysis of some files based on the path name. Can be used from the command line with:
infer infer --skip-analysis-in-path "some/path/" ...
or via the `.inferconfig` file:
{
"skip-analysis-in-path": [
"infer/demo/Resource.java"
]
}
Reviewed By: jberdine
Differential Revision: D3954809
fbshipit-source-id: d0d2b9f
Summary:
- Use the module types in cModule_types.ml instead of redefining them.
- A few occurrences of \n in formatted output replaced by @\n to let the
formatter know of line breaks (by no means complete, these were just a few I
came across while doing something else)
Reviewed By: jberdine
Differential Revision: D3944081
fbshipit-source-id: 4460427
Summary:
It's nice to be able to know how well the process we started did, although this
diff ignores it for now.
Reviewed By: dulmarod
Differential Revision: D3937902
fbshipit-source-id: 80bf20f
Summary:
In order to have only InferJava depend on JBasics, do not use
JBasics.java_lang_object in the IR or backend. Note that this implies
that the Java frontend should ideally translate JBasics.java_lang_object
to Typename.Java.java_lang_Object.
Reviewed By: jeremydubreil
Differential Revision: D3956468
fbshipit-source-id: def64dd
Summary:
This diff introduces a first version of a front-end checkers specification
language. The language is based on the CTL temporal logic that is interpreted
on trees. In this case the model for a formula is the AST of the program produced
by clang.
This diff introduce the language and translate most of the existing checks on
this new language. In other diff I will translate all the other checks.
Then I will generalize the framework to allow the developer to specify only
the CTL formula.
Reviewed By: martinoluca
Differential Revision: D3819211
fbshipit-source-id: f8e01eb
Summary:
Change implementation of NSArray and NSDictionary model builtins to use
the method return type instead of magicking up types from strings.
Reviewed By: jvillard
Differential Revision: D3919815
fbshipit-source-id: f07a993
Summary:
Change Sil.Call instruction to have only a single optional return
identifier, insted of a list. Essentially none of the code handled
multiple return identifiers. Also, add the type of the return
identitifier to Call instructions.
Reviewed By: sblackshear
Differential Revision: D3919358
fbshipit-source-id: d2d4f72
Summary:
Refactor Sil.struct_typ and associated operations into a separate
StructTyp module. This is possible now that Typ.Tstruct only carries a
type name instead of the definition directly, and is helpful to simplify
module dependencies.
Reviewed By: cristianoc
Differential Revision: D3919357
fbshipit-source-id: a37a656
Summary:
It is no longer necessary to keep the name of a struct within the
struct, as the name will just have been used to look it up.
Reviewed By: cristianoc
Differential Revision: D3919355
fbshipit-source-id: ab65168
Summary:
Pass the exe_env to checker cluster callbacks, and add it to the domain
extras for BoundedCallTree, and use the Exe_env instead of
AttributesTable to obtain the tenv.
Reviewed By: sblackshear
Differential Revision: D3921850
fbshipit-source-id: 9edf324
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:
The global reference `DB.current_source` is used internally in the module DB, by all the front-ends, and directly and indirectly by the back-end, including saving and restoring the state in case of on-demand procedure calls. In particular, it is heavily used in printing functions.
This diff cleans up the flow of information about what the current file is, making it explicit, and removes the reference.
Reviewed By: jberdine
Differential Revision: D3901247
fbshipit-source-id: ef596bd
Summary:
Create the log directory even if the parent results directory does not
exist. In particular, the python buck module will delete the results
directory after it is created the first time, so it needs to be
re-created or else there is nowhere for the log files.
Reviewed By: sblackshear
Differential Revision: D3896546
fbshipit-source-id: 834cf79
Summary:
Rename symbols in test files so they are not duplicated and files can be analyzed together without affecting analysis results.
Fix some compilation errors, where files could be analyzed but would fail direct compilation.
Add Makefile mimicking the same analysis parameters used for the existing tests.
Reviewed By: dulmarod
Differential Revision: D3869993
fbshipit-source-id: 6db1baf
Summary:
This diff removes the redundancy in the representation of types where
struct types could be represented either directly using Tstruct or
indirectly using Tvar to refer to the type environment. A consequence
is that it is much harder to construct large type values.
Reviewed By: sblackshear, cristianoc
Differential Revision: D3839753
fbshipit-source-id: cf04ea5
Summary:
Rename Typ.mk_struct to internal_mk_struct, and add Tenv.mk_struct that
ensures types are added to the environment under the right name.
Reviewed By: cristianoc
Differential Revision: D3791865
fbshipit-source-id: fd4b667
Summary:
The Typ.struct_typ.csu field is now redundant with the Csu.t in the
name: Typename.t field.
Reviewed By: cristianoc
Differential Revision: D3791861
fbshipit-source-id: 5370885
Summary: Replace the struct_name: Mangled.t option field of Typ.struct_typ with name: Typename.t
Reviewed By: sblackshear
Differential Revision: D3791860
fbshipit-source-id: 3ee1d00
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:
When a project defines the same symbol in different files,
the results of the capture will be different depending on
the order in which files are captured.
In particular, if a procedure with the same name is defined in different files,
it will be associated with the last file being captured.
So the results can be different if the files are processed in different order.
In case of parallel capture, this has in effect a non-deterministic behaviour.
This diff defines a canonical file (alphabetically) when a procedure is multiply
defined, so that the procedure is associated to the same file whatever the order.
Reviewed By: jeremydubreil
Differential Revision: D3805002
fbshipit-source-id: 2c561f4
Summary:
There were overly complex and different ways of identifying C++/objC languages. Simplify and unify them.
How I came up with naming - there are two languages C and C++. You can apply "Objective-" extention to both of them.
We usually need to differentiate C and C++ (different AST) and whether it's extended (checks specific to ObjC)
Reviewed By: dulmarod
Differential Revision: D3804457
fbshipit-source-id: 685e40a
Summary:
ti_raw field tends to grow exponensially for template instantiations.
ASTexporter no longer gives this bit of information and infer needs to stop using it.
Reviewed By: jvillard
Differential Revision: D3798192
fbshipit-source-id: ba7cbb9
Summary:
We already have logic that deals with adding custom procnames in `function_deref_trans`. This diff simplifies `callExpr_trans` and removes
complex logic responsible for finding type of function.
There is no functional change intended (it will come in future diffs)
Reviewed By: dulmarod
Differential Revision: D3797839
fbshipit-source-id: 21fc13f
Summary:
Translate code coming from std::headers only when it's reachable from user code during translation.
This way, we reduce number of functions analyzer sees and decreases size of cfg/number of .attr files
Reviewed By: jvillard
Differential Revision: D3797550
fbshipit-source-id: 2a9eb4c
Summary:
This diff fixes two issues in the backend that were causing Bad_footprint
errors when abducing pointsto facts for expressions that start in an array
access and follow up with another structured access, eg `x[0].some_field`:
1. array accesses were assumed to come last in these expressions
2. the type of the root exp passed to the function that walks down the list of
offsets to apply to it was wrong in the case of arrays: it was always the
type of the whole expression instead of the root expr (eg the type of
`x[0].some_field` instead of the type of `x`).
Reviewed By: sblackshear, jeremydubreil
Differential Revision: D3800566
fbshipit-source-id: 0511604
Summary: This breaks a dependency to allow cFrontend_utils.ml to call into cLocation.ml.
Reviewed By: sblackshear
Differential Revision: D3779514
fbshipit-source-id: 6ca83d6
Summary: Fix pattern matching of the `parameters` field of `DeprecatedAttr`
Reviewed By: akotulski
Differential Revision: D3782788
fbshipit-source-id: df8dd40
Summary:
This simplifies the determination of whether the current process is the
originator of all the infer sub-processes.
Reviewed By: jvillard
Differential Revision: D3751324
fbshipit-source-id: 5e6dc6b
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: Make it possible to run infer code from within `ocaml`/`utop`. Integration is really basic, but we can extend it if we find it useful.
Reviewed By: jberdine
Differential Revision: D3736029
fbshipit-source-id: 4cebb7c
Summary: Python needs to know about the value of -l if the user passes it at the top level.
Reviewed By: martinoluca
Differential Revision: D3757614
fbshipit-source-id: fbd3c0f
Summary:
Infer doesn't go looking into field values when looking for unsigned
expressions, which could cause some unintended reports.
Reviewed By: sblackshear
Differential Revision: D3724232
fbshipit-source-id: 9c4cd97
Summary:
This was causing headaches as catching error code 2 may hide real issues.
While there, move crashcontext finalizer code to crashcontext.ml, and create a
.mli file for that module.
Reviewed By: jberdine
Differential Revision: D3742785
fbshipit-source-id: 3032451
Summary:
Make `infer -h` behave the same as `--help`, document it, and finally align the
`--help` and `--help-full` options with the other options in the help output
(they are added separately from the other options so this wasn't the case
before).
Reviewed By: jberdine
Differential Revision: D3741778
fbshipit-source-id: a0c81ba
Summary:
The error code was always 1, and was only enabled in crashcontext mode due to a
typo.
Reviewed By: sblackshear, lazaroclapp
Differential Revision: D3735661
fbshipit-source-id: c0bb0f5
Summary:
On wrong arguments (or on no arguments at all), `infer` would spew the error
message of `infer.py`, which makes no sense. Make the python code swallow error
messages and exit with a special code on errors coming from command line
parsing so that the OCaml side is in charge of printing usage messages.
Reviewed By: cristianoc
Differential Revision: D3731594
fbshipit-source-id: fe49cda
Summary:
This helps avoid some unintended reports where the actual is known to point to
a specific object before a call to a skipped function. This requires a change
in the plugin to export more info about const types.
Reviewed By: dulmarod
Differential Revision: D3711901
fbshipit-source-id: f5c903e
Summary:
Adding a new mode linters. Now if the analyzer is linters, we do the linters and don't translate,
then, if the analyzer is Infer, we do the translation and the backend and not the linters checks, and the
default is that we do capture, backend and lint checks.
Made the tests separated, which saves time and also shows that the linters mode works.
Reviewed By: jvillard
Differential Revision: D3723472
fbshipit-source-id: 9d828d8
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: With this approach, all the global consts will be inlined in the places where they are used.
Reviewed By: dulmarod
Differential Revision: D3703133
fbshipit-source-id: 3c19479
Summary:
- make sure former options of `./infer/lib/python/infer.py --help`, `./infer/lib/python/infer.py --help -- make`, ... all appear in `infer --help`
- add some options to config.ml and infer.ml to fix missing options
- have `infer --help` output help info for Toplevel + Backend + Clang + Java
- wrap help lines at 80 characters
Reviewed By: jberdine
Differential Revision: D3669865
fbshipit-source-id: 1ceff2d
Summary:
Refactor module Prop disentangling the various normalization functions, and moving them inside a new module Normalize.
There is quite a reshuffling of functions, including some dead code removal, but there should be no computational difference.
Reviewed By: jvillard
Differential Revision: D3696491
fbshipit-source-id: 68dd719
Summary:
Clean up the API to access component of propositions.
Use uniform naming for getting and setting components.
Reviewed By: jberdine
Differential Revision: D3696180
fbshipit-source-id: a8aedb0
Summary:
Add module `Core` in Prop to contain the implementation of a prop as a record. The record is private so that pattern matching is unchanged.
Added new function to set individual fields, enforcing that the type becomes exposed when constructing explicitly.
Added function unsafe_cast_to_normal to mark all the cases where a coercion to a normalized type is used.
This is purely a refactoring diff that only affects types, it should have no runtime consequence.
Reviewed By: jberdine
Differential Revision: D3691342
fbshipit-source-id: fa06e29
Summary:
Make necessary changes so that the clang frontend compiles with the
corresponding changes to the facebook clang plugins. Does not actually use the
extra qualifier information yet.
depends on D3684150
Reviewed By: akotulski
Differential Revision: D3684173
fbshipit-source-id: f715f75
Summary:
Attribute.remove was performing an ad hoc form of normalization on
atoms, replace with the standard normalization from Prop.
Reviewed By: cristianoc
Differential Revision: D3686041
fbshipit-source-id: b89e59e
Summary:
This diff lifts the Prop.Attribute module out of Prop. This required
moving several Prop functions that depend on Attribute
(find_arithmetic_problem, deallocate_stack_vars, find_equal_formal_path)
and adding numerous calls to Prop.normalize to fix normal/exposed
mismatches. Also note that the type of Prop.normalize is generalized to
allow calling it on normalized props.
Reviewed By: cristianoc
Differential Revision: D3684523
fbshipit-source-id: f37af8b
Summary:
Enable warning 23 (Useless record with clause), make fatal, and fix the
existing instance.
Reviewed By: sblackshear
Differential Revision: D3685950
fbshipit-source-id: 8ee415d
Summary:
Move the Sil.attribute type and associated types and operations to a new
PredSymb module.
Reviewed By: cristianoc
Differential Revision: D3683834
fbshipit-source-id: d3606a8
Summary:
Change the Aobjc_null attribute from a family of unary predicates, one
for each Pvar.t * Ident.fieldname list, to a single binary predicate.
This diff should not change behavior except for printing of Aobjc_null
attributes. Also, operations such as free variables, etc. should now
behave correctly with respect to variables occurring in the arguments of
Aobjc_null.
Reviewed By: cristianoc
Differential Revision: D3669392
fbshipit-source-id: fe4434a
Summary:
Add support for nary predicates, not just unary ones. Many operations
don't make much sense for nullary predicates, and are generally treated
as no-ops. The first argument is treated specially, as the "anchor" of
the predicate application. For example, adding or removing an attribute
uses the anchor to identify the atom to operate on. Also, abstraction
and normalization operations treat the anchor specially.
Reviewed By: cristianoc
Differential Revision: D3669391
fbshipit-source-id: 3d142ea
Summary:
There is no need to call exp_normalize on the sub-expressions of
arguments to atom_normalize, as it calls exp_normalize on its
sub-expressions.
Reviewed By: cristianoc
Differential Revision: D3669390
fbshipit-source-id: 468b6b1
Summary:
Simplify the (implementation and) interface of Prop by using the atom
type directly instead of a tuple type that duplicates the fields.
This change does not weaken the type guarantees, while reducing
redundancy between types thereby making future changes easier.
Reviewed By: cristianoc
Differential Revision: D3669388
fbshipit-source-id: 65f7493
Summary:
Change representation of pure predicate applications to distinguish
between positive and negative literals using the Apred and Anpred
constructors instead of a boolean field.
This representation is more compact, and is uniform with the treatment
of equalities and disequalities. Some code is simpler, but there isn't
much in it.
Reviewed By: cristianoc
Differential Revision: D3669387
fbshipit-source-id: 07cdea6
Summary:
Treat attributes as unary predicates in classical first-order logic.
This diff extends predicates with a polarity and uses classical 2-valued
semantics. This potentially changes the behavior of negating
attributes, which was not previously relied on.
Reviewed By: sblackshear
Differential Revision: D3669365
fbshipit-source-id: 2f26776
Summary:
Replace disequalities to Attribute expressions with predicate symbol
application pure atomic formulas.
This diff should preserve existing behavior, up to the comparison order
of attribute disequalities versus predicate applications.
Reviewed By: sblackshear
Differential Revision: D3647049
fbshipit-source-id: c39a901
Summary:
Cosmetic changes to comments to improve the results of the Reason
comment attachment logic.
These were found using `git grep -nH -e 'in[ ]*(\*'` although the
attachment logic seems ok if the associated `let` is on the same line.
Some others were found with `git grep -nH -e ')[ ]*(\*'` although the
attachment logic seems ok if the associated `(` is on the same line.
Reviewed By: jvillard
Differential Revision: D3654027
fbshipit-source-id: 122aa3b
Summary:
Make checks context-aware, to increase flexibility.
As an example application of this change, whenever an atomic property is accessed from within a synchronized block, skip reporting a `DIRECT_ATOMIC_PROPERTY_ACCESS` warning.
Reviewed By: jvillard
Differential Revision: D3648831
fbshipit-source-id: c033f45
Summary: Follow up D3579581. We forget about memory acquired in resources with assumption that developers use raii and free memory in destructors.
Reviewed By: jvillard
Differential Revision: D3614056
fbshipit-source-id: 08fa112
Summary:
This is needed on osx, where one of {`Sys.executable_name`, `Unix.readlink`}
does not behave the same as Linux.
Reviewed By: jberdine
Differential Revision: D3614254
fbshipit-source-id: a376636
Summary:
Previously, we would translate `throw` with `return`. However, `throw` in
ObjC/C++ is often used to mean "abort". We now translate `throw` the same as
`exit` to prune these paths.
Reviewed By: akotulski
Differential Revision: D3594156
fbshipit-source-id: 81083bb
Summary:
Minor stuff:
- GCCAst -> GCCAsm
- separate constants and mutable global state in cFrontend_config
- alphabetical ordering in cFrontend_config
Reviewed By: akotulski
Differential Revision: D3593858
fbshipit-source-id: 6f4d9c3
Summary:
No longer allow pointer types to be passed inside var_exp_typ. We used to accept both forms,
but it won't be possible any longer once shared_ptr becomes pointer type.
Reviewed By: dulmarod
Differential Revision: D3593003
fbshipit-source-id: a830914
Summary:
1. Attempt to simplify callExpr_trans by merging multiple if-else branches into one in `CTrans_utils.builtin_trans`. Not every special case works that way, so some of them are still there.
2. On top of that, make type of parameters in `CTrans_models` functions `Procname.t` instead `Procname.t option`. This triggered some more changes to `callExpr_trans`.
3. Semi-randomly reorder instructions in `callExpr_trans`
This is mainly an attempt to clean up the code so any suggestions how to make it better are welcome.
Reviewed By: jvillard
Differential Revision: D3586419
fbshipit-source-id: aef8580
Summary:
Python needs to know about these because it does different things depending on
whether these flags are passed or not.
Reviewed By: cristianoc
Differential Revision: D3593381
fbshipit-source-id: fe3194d
Summary:
Store more information inside Procname.objc_cpp type: replace mangling info
with "kind" info, which also contains mangling info when appropriate.
Reviewed By: akotulski
Differential Revision: D3580283
fbshipit-source-id: b1197ed
Summary: ClassTemplateSpecializationDecl now contains structures information about the specialization
Reviewed By: jvillard
Differential Revision: D3586446
fbshipit-source-id: d567a0b
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:
Class names fragile, easy to break and they introduce another level of indirection.
Since C++ translation doesn't need names, pass decl pointers everywhere.
Doing otherwise will most likely result in assert false.
Handling of class names in objc translation is more involving and it's left
for now. Later, objc can use same mechanism as C++.
Reviewed By: dulmarod
Differential Revision: D3570176
fbshipit-source-id: b957aba
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:
Generation of the module dependency graph was broken (all IR modules
were omitted) by the reason conversion.
Reviewed By: cristianoc
Differential Revision: D3541395
fbshipit-source-id: e5af125
Summary: Move Sil.dexp type and operations into separate DecompExp module.
Reviewed By: dulmarod
Differential Revision: D3548095
fbshipit-source-id: 5ab4360
Summary:
Move Sil.call_flags type and operations into separate CallFlags
module.
Reviewed By: dulmarod
Differential Revision: D3548086
fbshipit-source-id: 6d264e9
Summary: Move Sil.binop type and operations into separate Binop module.
Reviewed By: dulmarod
Differential Revision: D3548082
fbshipit-source-id: 356bee3
Summary: Move Sil.unop type and operations into separate Unop module.
Reviewed By: dulmarod
Differential Revision: D3548077
fbshipit-source-id: 49d3d83
Summary: Move Sil.const type and operations into separate Const module.
Reviewed By: dulmarod
Differential Revision: D3548073
fbshipit-source-id: 388d03e
Summary:
Remove recursion from strexp type and functions that is no longer
needed.
Reviewed By: dulmarod
Differential Revision: D3548070
fbshipit-source-id: c4999b7
Summary:
Remove recursion from dexp type and functions that is no longer
needed.
Reviewed By: dulmarod
Differential Revision: D3548068
fbshipit-source-id: 79de8b6
Summary:
Remove recursion from const type and functions that is no longer
needed.
Reviewed By: dulmarod
Differential Revision: D3548064
fbshipit-source-id: e123c24
Summary:
Move attribute values from const to exp. They are not constants, and
this reduces interdependence between Sil types.
Reviewed By: cristianoc
Differential Revision: D3548055
fbshipit-source-id: 31a9121
Summary: Use Prop.atom_negate in Rearrange instead of almost reimplementing it.
Reviewed By: sblackshear
Differential Revision: D3554171
fbshipit-source-id: 9baabc9
Summary:
The Aobjc_null attribute does not need a fully general exp. This diff
refines this to a possibly-empty path of fields starting from a pvar,
which reduces interdependence between Sil types.
Reviewed By: dulmarod
Differential Revision: D3548043
fbshipit-source-id: 49d16ab
Summary:
Move closure values from const to exp. They are not constants, and
this reduces interdependence between Sil types.
Reviewed By: sblackshear
Differential Revision: D3541364
fbshipit-source-id: 1a2f998
Summary:
Move exception values from const to exp. They are not constants, and
this reduces interdependence between Sil types.
Reviewed By: sblackshear
Differential Revision: D3541355
fbshipit-source-id: f22e0ba
Summary:
Move analyzer type and ops from Utils to Config, and simplify by
reducing interface. There are very few uses so no need to pollute
global namespace.
Reviewed By: sblackshear
Differential Revision: D3541047
fbshipit-source-id: 2be56af
Summary:
Backend has the same treatment for all Typ.Int types and so UnaryOperator
should be translated the same for all of them
Reviewed By: jvillard
Differential Revision: D3534277
fbshipit-source-id: 8569b65
Summary: Change length of Dsizeof from an exp to a dexp. This make a little progress toward reducing the types that must be mutually recursive with exp.
Reviewed By: sblackshear
Differential Revision: D3541337
fbshipit-source-id: 95d1f70
Summary:
Simplify config implementation to make it easier to define new
executables.
Reviewed By: martinoluca
Differential Revision: D3529213
fbshipit-source-id: 71324a2
Summary:
Document how to define new command line and config file options, and
slight cleanup.
Reviewed By: jvillard
Differential Revision: D3528952
fbshipit-source-id: 6bd7601
Summary:
Call infer with `--unsafe-malloc` or set `unsafe-malloc: true,` in .inferconfig to
have infer assume that `malloc()` never returns null.
closes#389
Reviewed By: jberdine
Differential Revision: D3522169
fbshipit-source-id: 6b88a16
Summary: `Config.abs_val` was always set to 2 instead of taking its value from the option.
Reviewed By: jberdine
Differential Revision: D3515024
fbshipit-source-id: fa27396
Summary:
Simplify DB initialization by removing some unit functions, since
Config values are now already initialized at module load time.
Reviewed By: akotulski
Differential Revision: D3522728
fbshipit-source-id: ac93d30
Summary:
Use resolve instead of filename_to_absolute, to resolve relative paths
in command line arguments with respect to the working directory infer
is initially invoked from, rather than the possibly-changed current
working directory of the child processes.
Also use initial instead of current working dir for default
project_root and results_dir
Reviewed By: martinoluca
Differential Revision: D3467571
fbshipit-source-id: fbb0f3f
Summary:
In InferPrint, ignore non-existent dirs when looking for specs. This
allows InferPrint to work when the results dir does not exist.
Reviewed By: sblackshear
Differential Revision: D3522757
fbshipit-source-id: 5ef905d
Summary:
Create log dir only if results_dir exists, otherwise, log to standard
output and error even in developer mode.
Reviewed By: sblackshear
Differential Revision: D3522737
fbshipit-source-id: e00571b
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
Summary:
This call was producing confusing false positives when deleted object was possible to be null.
Changing frontend to add that check is not trivial so I turned it off for now (we don't handle
destructors in other cases anyway)
Reviewed By: dulmarod
Differential Revision: D3509354
fbshipit-source-id: c23dc81
Summary: lambdaExpr now has more information, make infer compile with that new version
Reviewed By: dulmarod
Differential Revision: D3515291
fbshipit-source-id: d239bd3
Summary:
When clang instantiates template function with argument pack, it will
give the same name to all parameters coming from the pack. To avoid
name collisions, always add index of argument's position to mangled part
of the variable.
Seemingly unrelated changes are to make existing tests pass (don't use
simple variable name where it matters)
Reviewed By: dulmarod
Differential Revision: D3503608
fbshipit-source-id: 794093a
Summary:
InferPrint used to:
1. always print specs to stdout
2. not require --results-dir to be present
3. if invoked with .spec file, print just that file (that broke long time ago I think)
This diff fixes only (1) as this is most annoying and easiest part, but the rest should be fixed as well
Reviewed By: sblackshear
Differential Revision: D3504015
fbshipit-source-id: 469b46f
Summary: in text mode (`pp_stats`), we print it and so we probably should to the same for html
Reviewed By: jvillard, sblackshear
Differential Revision: D3497678
fbshipit-source-id: 3d47d2a
Summary: Those functions have simple enough implementations for infer to understand them
Reviewed By: jvillard
Differential Revision: D3463084
fbshipit-source-id: f84160f
Summary:
This diff changes the toplevel 'infer' executable from the current
python script to an OCaml binary. Currently this executable only parses
command line arguments, sets up environment variables, and invokes the
existing python script. This improves infer's command-line and
configuration interface, since passing arguments to the frontends or
backend no longer requires manually setting environment variables, and
arguments for the toplevel can now also be specified in .inferconfig.
Simplification and migration of functionality from the python script is
left for the future.
Reviewed By: martinoluca, jvillard
Differential Revision: D3450662
fbshipit-source-id: 1b52302
Jeremy Dubreil
Sam Blackshear
Dulma Churchill
Andrzej Kotulski
Dino Distefano
Jules Villard
Josh Berdine
Cristiano Calcagno
Peter O'Hearn
Yunxing Dai
Ryan Rhee
Martino Luca
Lázaro Clapp Jiménez Labora
Vaibhav Tulsyan
Zac Sweers
Daiva Naudziuniene