Summary: The `--failures-allowed` was doing for the Clang frontend what `--keep-doing` was doing for the backend. This revision merges the two options to simplify the Infer CLI and our tests.
Reviewed By: jvillard
Differential Revision: D5474347
fbshipit-source-id: 09bcea4
Summary:
update-submodule: facebook-clang-plugins
Moving to a newer version of clang, see ffb5dd0114
Reviewed By: jvillard
Differential Revision: D5452529
fbshipit-source-id: 28bc215
Summary:
Better to bail early than have mysterious failures. These used to have the wrong error messages:
```
$ cd examples/android_hello/
$ infer -- ./gradlew rubbish
Capturing in gradle mode...
Running and capturing gradle compilation...
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Task 'rubbish' not found in root project 'android_hello'.
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Try:
10:46:56.730 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Run gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace.
Nothing to compile. Try running `./gradlew clean` first.
ERROR: (Unix.Exit_or_signal (Exit_non_zero 66))
$ cd -
$ infer --flavors --Xbuck --keep-going -- buck build //toto:toto
Capturing in buck mode...
moving files in buck-out to buck-out/.trash/buck-outwiiL6N
Not using buckd because watchman isn't installed.
BUILD FAILED: No build file at toto/BUCK when resolving target //toto:toto#infer.
Buck failed, but continuing the analysis because --keep-going was passed
Not using buckd because watchman isn't installed.
No build file at toto/BUCK when resolving target //toto:toto#infer.
Traceback (most recent call last):
File "/home/jul/infer/infer/bin/../lib/python/infer.py", line 186, in <module>
main()
File "/home/jul/infer/infer/bin/../lib/python/infer.py", line 168, in main
capture_exitcode = imported_module.gen_instance(args, cmd).capture()
File "/home/jul/infer/infer/lib/python/inferlib/capture/buck.py", line 89, in capture
return self.capture_with_flavors()
File "/home/jul/infer/infer/lib/python/inferlib/capture/buck.py", line 242, in capture_with_flavors
result_paths = self._get_analysis_result_paths()
File "/home/jul/infer/infer/lib/python/inferlib/capture/buck.py", line 148, in _get_analysis_result_paths
out = [x.split(None, 1)[1] for x in buck_output.strip().split('\n')]
IndexError: list index out of range
ERROR: (Unix.Exit_or_signal (Exit_non_zero 1))
$ cd infer/build_systems/ant/ && infer -- ant rubbish
Capturing in ant mode...
BUILD FAILED
Target "rubbish" does not exist in the project "null".
at org.apache.tools.ant.Project.tsort(Project.java:1929)
at org.apache.tools.ant.Project.topoSort(Project.java:1837)
at org.apache.tools.ant.Project.topoSort(Project.java:1800)
at org.apache.tools.ant.Project.executeTarget(Project.java:1376)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
at org.apache.tools.ant.Main.runBuild(Main.java:857)
at org.apache.tools.ant.Main.startAnt(Main.java:236)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:287)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:113)
Total time: 0 seconds
Nothing to compile. Try running `ant clean` first.
ERROR: (Unix.Exit_or_signal (Exit_non_zero 66))
```
Now we fail better, for instance:
```
$ infer --flavors --Xbuck --keep-going -- buck build //toto:toto
Capturing in buck mode...
moving files in buck-out to buck-out/.trash/buck-outHag8Ji
Not using buckd because watchman isn't installed.
BUILD FAILED: No build file at toto/BUCK when resolving target //toto:toto#infer.
Buck failed, but continuing the analysis because --keep-going was passed
Not using buckd because watchman isn't installed.
No build file at toto/BUCK when resolving target //toto:toto#infer.
ERROR: (Unix.Exit_or_signal (Exit_non_zero 70))
$ cd infer/build_systems/ant/ && infer -- ant rubbish
Capturing in ant mode...
BUILD FAILED
Target "rubbish" does not exist in the project "null".
at org.apache.tools.ant.Project.tsort(Project.java:1929)
at org.apache.tools.ant.Project.topoSort(Project.java:1837)
at org.apache.tools.ant.Project.topoSort(Project.java:1800)
at org.apache.tools.ant.Project.executeTarget(Project.java:1376)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
at org.apache.tools.ant.Main.runBuild(Main.java:857)
at org.apache.tools.ant.Main.startAnt(Main.java:236)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:287)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:113)
Total time: 0 seconds
ERROR: couldn't run compilation command `['ant', '-verbose', u'rubbish']`
ERROR: (Unix.Exit_or_signal (Exit_non_zero 1))
```
Reviewed By: jeremydubreil
Differential Revision: D5469607
fbshipit-source-id: a3eb05c
Summary:
The way we represented container writes before was pretty hacky: just use a dummy field for the name of the method that performs the container write.
This diff introduces a new access kind for container writes that is much more structured.
This will make it easier to soundly handle aliasing between containers and support container reads in the near future.
Reviewed By: da319
Differential Revision: D5465747
fbshipit-source-id: e021ec2
Summary: Using a dedicated abstract domain, like Quandary does, is more suitable for taint analysis.
Reviewed By: sblackshear
Differential Revision: D5473794
fbshipit-source-id: c917417
Summary: Because making a diff which breaks the tests because it silently fails to create the right posts for the models is notoriously hard to debug
Reviewed By: sblackshear
Differential Revision: D5471611
fbshipit-source-id: ef04539
Summary:
Both `stringWithUTF8String` and `stringWithString` implements copy semantics that copies the content of their parameter into a newly allocated buffer. We modeled this as pointer assignment in the past, which means that once we write
```
NSString* foo() {
char buf[...];
...
return [NSString stringWithUTF8String:buf];
}
```
We are going to get a spurious stack variable address escape report because local pointer `buf` is assigned to the newly created string and the string gets returned.
This diff tries to address the issue by heap-allocating a buffer and `memcpy` the contents in `stringWithUTF8String` and `stringWithString`. But this change will create another problem: the allocated buffer will be reported as leaked by the backend, while in reality those buffers won't actually be leaked as they are allocated in a region that will be periodically autoreleased. To suppress spurious memory leak FPs, I added another attribute `Awont_leak` that will suppress the leakage report on any expressions that get tagged with it.
Reviewed By: jeremydubreil
Differential Revision: D5403084
fbshipit-source-id: df6de7f
Summary: This gives us more expressive power when defining sources--we can use heuristics like "`foo(o)` only returns a source when `o` is not a constant".
Reviewed By: jvillard
Differential Revision: D5467935
fbshipit-source-id: f3d581d
Summary: This should make it faster to use embarassingly big regexps in AL.
Reviewed By: mbouaziz
Differential Revision: D5462938
fbshipit-source-id: 0431730
Summary:
Pretty basic: warn when we see an assignment instruction `x = ...` and `x` is not live in the post of the instruction.
Only enabled for Clang at the moment because linters already warn on this for Java. But we can enable it later if we want to (should be fully generic).
Reviewed By: jeremydubreil
Differential Revision: D5450439
fbshipit-source-id: 693514c
Summary:
oops_house
This was introduced when upgrading Core, as `Unix.readdir` became deprecated in
favour of `Unix.readdir_opt` but the exception-based logic was left unchanged.
Reviewed By: mbouaziz
Differential Revision: D5461353
fbshipit-source-id: c0994c3
Summary:
Phony dependencies are not good for incrementality. Retain the nice
factorization of code introduced by D5415318 but depend directly on the
relevant files instead of the phony target.
Reviewed By: mbouaziz
Differential Revision: D5461188
fbshipit-source-id: 069519b
Summary: Making it simple to add a new access type for "un-annotated interface call" in an upcoming diff.
Reviewed By: da319
Differential Revision: D5445914
fbshipit-source-id: f29e342
Summary: We get the wrong answer on most of them for now, but that is expected
Reviewed By: ngorogiannis
Differential Revision: D5429242
fbshipit-source-id: 4899079
Summary:
The previous version
- assumed that `infer` was in `PATH`
- would pick any old `infer` in `PATH` and not necessarily the right version
Reviewed By: mbouaziz
Differential Revision: D5433624
fbshipit-source-id: a59be3d
Summary: Long lists will be broken into lines rather than stretch out on a single line.
Reviewed By: jvillard
Differential Revision: D5424323
fbshipit-source-id: 115f16a
Summary:
This commit avoids precision loss on pruning.
// x -> [s$1, s$2]
if(x) { ... }
// x -> ?
before: x -> [min(0, s$1), max(0, s$2)]
because two x values, [0, 0] (true case) and [s$1, s$2] (false case), were joined after the if branch.
after: x -> [s$1, s$2]
Reviewed By: mbouaziz
Differential Revision: D5431009
fbshipit-source-id: 14a9efe
Summary:
Infer is only using clang's AST which means it can ignore flags passed to LLVM backend via `-mllvm` flag.
It will make it easier to maintain compatibility between different versions of clang/LLVM (ie. when flag is not available in LLVM used by infer)
Reviewed By: jvillard
Differential Revision: D5423685
fbshipit-source-id: a9de681
Summary: Changing .inferconfig can change the analysis results, so we want the cache to get invalidated when .inferconfig changes.
Reviewed By: jeremydubreil
Differential Revision: D5419734
fbshipit-source-id: 01ad874
Summary:
This just makes the warnings silent for now. We may improve the analysis to check if the null check on the captured fields are consistent with the annotation on the corresponding parameters.
Eradicate also has the same issue. I added a test to outline this. The biabduction analysis will also probably fail on the same of annotation lookup. We may want implement the proper fix at the level of `Annotation.field_has_annot`.
Reviewed By: sblackshear
Differential Revision: D5419243
fbshipit-source-id: 6460de8
Summary: This way, if infer crashes then the log files will be available for inspection, but if it succeeds we still get rid of the (non-deterministic) logs before Buck caches the results.
Reviewed By: sblackshear
Differential Revision: D5416032
fbshipit-source-id: 22e58be
Summary:
Fixes 2 issues with the build:
- The OCaml dependencies (Version.ml, atdgen-generated stuff, ...) would be generated twice when running `make -j test` from a clean tree, because `make` has no inter-Makefile visibility over common dependencies.
- We would run `atdgen` twice: once for the .ml, once for the .mli, even though one invocation is enough for both.
Add `make ocaml_clean` to nuke only the OCaml code (in particular because
rebuilding the C++ code in the plugin is slow when all I want to get rid of the
OCaml stuff).
Reviewed By: mbouaziz
Differential Revision: D5415318
fbshipit-source-id: 16f42c6
Summary:
First steps towards implementing diff analysis functionalities inside infer
itself. What works: run infer, checkout parent, re-run infer, checkout top
revision, compute the reportdiff (but no final surfacing on the console). Lots
of TODO still, inlined in the code.
Reviewed By: jberdine
Differential Revision: D5364226
fbshipit-source-id: 5b7f9a5
Summary:
Allowing the user to configure where to store the JSON report is asking for
trouble. In fact, some places in the code hardcoded "results.json" anyway.
Someone wanting to have results.json somewhere else can still copy report.json
once infer has run.
Reviewed By: jberdine
Differential Revision: D5415079
fbshipit-source-id: 9439cb6
Summary:
This reverts commit 7177bb6b8af1404fde408ead4750ef48ed9bdaff.
In practice, `extract_filepath` exhausts the call stack, leading to "RuntimeError: maximum recursion depth exceeded" exceptions. Perhaps a loop needs to be used instead.
Reviewed By: jvillard
Differential Revision: D5409892
fbshipit-source-id: 09ccccd
Summary: CFG nodes were not connected and some instructions ended up in wrong place. Fix those issues
Reviewed By: dulmarod
Differential Revision: D5406720
fbshipit-source-id: 2a70e1a
Summary: Introduce `Logging.die` to try and exit with consistent error codes depending on what failed.
Reviewed By: mbouaziz
Differential Revision: D5406642
fbshipit-source-id: 25d98fc
Summary: This will allow us to gradually get rid of the exceptions thrown during the analysis while detecting the regressions earlier
Reviewed By: jberdine, jvillard
Differential Revision: D5385154
fbshipit-source-id: 605e3f5
Summary:
Problem: The analyzer did not know that the value of `v.size()` is an alias of `v.infer_size`, so `v.infer_size` is not pruned by the if condition. As a result it raises a false alarm.
void safe_access(std::vector<int> v) {
if (v.size() >= 10) {
v[9] = 1; // error: BUFFER_OVERRUN Offset: [9, 9] Size: [5, 5]
}
}
void call_safe_access_Good() {
std::vector<int> v(5, 0);
safe_access(v);
}
Solution: Adding alias for return value to the abstract domain.
Now Inferbo can prune `v.infer_size` because it knows that the value of `v.size()` is an alias of `v.infer_size`. There is already an alias domain in Inferbo, so we added a specific room for the retrun value.
Reviewed By: jvillard, mbouaziz
Differential Revision: D5396988
fbshipit-source-id: 4a4702c
Summary:
1. Allow it to forward -version calls to javac (so that if the build system wants
to check the compiler version it doesn't end up with Infer's version)
2. Preserve empty arguments:
javac -bootclasspath "" -classpath a.jar ...
currently gives:
javac: invalid flag: a.jar
Closes https://github.com/facebook/infer/pull/688
Differential Revision: D5406058
Pulled By: jvillard
fbshipit-source-id: 7fa1bcf
Summary:
Conversion and reformat of infer source using ocamlformat
auto-formatting tool.
Current status:
- Because Reason does not handle docstrings, the output of the
conversion is not 'Warning 50'-clean, meaning that there are
docstrings with ambiguous placement. I'll need to manually fix
them just before landing.
Reviewed By: jvillard
Differential Revision: D5225546
fbshipit-source-id: 3bd2786
Summary:
Add support for converting without actually converting. To be used as
a landing pad for rebasing over the conversion.
Reviewed By: jvillard
Differential Revision: D5379967
fbshipit-source-id: 1bd932d
Summary: Adding to the Quandary tests, the list of tests that are already working for the bi-abduction based taint analysis.
Reviewed By: sblackshear
Differential Revision: D5395734
fbshipit-source-id: c4f2e79
Summary:
Error'ing when getting several subcommands on the command line only makes sense
when the user typed these options herself. This was causing a bug in the Gradle
integration, and possibly others (see GitHub issue).
Fixes#668
Reviewed By: jeremydubreil
Differential Revision: D5381850
fbshipit-source-id: f332377
Summary:
Fixes#683
Disclaimer: I don't know what XML namespaces/namespace prefixes are, but this seems to do the trick.
Reviewed By: mbouaziz
Differential Revision: D5381480
fbshipit-source-id: 3da16e7
Summary: This will allow to replace type vars into concrete types in expressions.
Reviewed By: jvillard, mbouaziz
Differential Revision: D5209276
fbshipit-source-id: c1650f8
Summary:
The thread safety domain manipulates access paths that are a variable
followed by a sequence of field or index accesses. Some expressions
from C++ code do not fit that form, such as cases where subtraction of
an offset from a pointer is used to obtain another pointer, whose
fields are then accessed. Previously the analyzer would crash on such
expressions. This diff partially treats them by introducing dummy
variables.
Reviewed By: da319
Differential Revision: D5343567
fbshipit-source-id: f73b520
Summary:
:
because otherwise people would believe they can use the internal representation of these std lib but it fails for our models.
Reviewed By: jvillard
Differential Revision: D5368671
fbshipit-source-id: 4e53d5a
Summary: So that it get rebuilt. Test is clang_compilation_db_relpath
Reviewed By: mbouaziz
Differential Revision: D5364561
fbshipit-source-id: 8cae984
Summary:
:
Get rid of model location in reports.
The goal is to avoid changing `issues.exp` whenever a model is updated.
Reviewed By: jvillard
Differential Revision: D5356608
fbshipit-source-id: 88ecaba
Summary: This could generate enormous amounts of logs on medium-sized projects (eg rocksdb) when running with `--stats`. Review other debug levels in inferbo as well.
Reviewed By: mbouaziz
Differential Revision: D5364139
fbshipit-source-id: 5c8d206
Summary:
In C++ it may happen that a procedure return 'variable' is an access
path that cannot be translated to Hil. For now just skip these instead
of crashing.
Reviewed By: mbouaziz
Differential Revision: D5356134
fbshipit-source-id: 977dfba
Summary:
They are expected to occur in C++ code, so don't fail on them. For now
just skip them, although a better treatment of dynamic dispatch may be
needed later.
Reviewed By: da319, mbouaziz
Differential Revision: D5292462
fbshipit-source-id: 4285514
Summary:
Indexing into a string literal expression would generate a fresh
variable on every application of a transformer. This violated
finiteness of the domain, and caused divergence.
Reviewed By: da319
Differential Revision: D5342951
fbshipit-source-id: e95e84e
Summary: It was passing the argument multiple times rather than once with all the accepted values
Reviewed By: jvillard
Differential Revision: D5338509
fbshipit-source-id: 22b86a5
Summary: This is useful when we only want to examine the html for some but not all source files.
Reviewed By: jvillard
Differential Revision: D5334786
fbshipit-source-id: 774c23c
Summary:
It instantiates fields of structures when a pointer to which is given
as a function parameter, e.g., `foo(&s);`.
Reviewed By: mbouaziz, jvillard
Differential Revision: D5337645
fbshipit-source-id: c06da29
Summary: Rename historical option to its new form, since the old form was no longer accepted by infer.
Reviewed By: martinoluca
Differential Revision: D5329033
fbshipit-source-id: 4fa9402
Summary:
We keep track of both `beginPtr` and `endPtr` but the modelling was mostly
about `beginPtr` as some sort of approximation I guess. This shouldn't change
much but will be useful later when doing more iterator stuff.
Reviewed By: mbouaziz
Differential Revision: D5255772
fbshipit-source-id: 0f6e3e8
Summary:
This will be needed to re-use the functions now in Driver.ml in other contexts
without always adding to infer.ml. For instance, this is used in a later diff
to do a diff-analysis orchestrator that needs to run the capture and analysis
several times.
Reviewed By: jberdine
Differential Revision: D5319862
fbshipit-source-id: caf9551
Summary: Needed in a later diff to be able to compute the set of changed files *during* an infer execution.
Reviewed By: jberdine
Differential Revision: D5319667
fbshipit-source-id: 226ec91
Summary: This seems to move in the right direction. Also, `const operator[]` did not do an `access_at`, which I fixed.
Reviewed By: mbouaziz
Differential Revision: D5320427
fbshipit-source-id: c31c5ea
Summary: Unknown library returns the unknown pointer as well as the top interval.
Reviewed By: mbouaziz, jvillard
Differential Revision: D5282669
fbshipit-source-id: 34c7e18
Summary:
Thanks to the logging introduced in D5293334 (or because of, depending on your liking of spam), I noticed that there lots of errors being logged of the form
Couldn't read multilink file '/home/jul/infer/infer/tests/codetoanalyze/cpp/errors/infer-out/attributes/d0/multilink.txt': /home/jul/infer/infer/tests/codetoanalyze/cpp/errors/infer-out/attributes/d0/multilink.txt: No such file or directory
I don't think it makes sense to care about multilink files except when `--merge` is specified.
Also introduced a .mli and self-documented a function.
Reviewed By: akotulski
Differential Revision: D5310129
fbshipit-source-id: c3a6276
Summary:
Once the fixed/preexisting/introduced sets have been computed, they endure
further filtering which may decide that more of them are equal. These bugs just
get dropped on the floor. Put these into preexisting as well instead, at least
in the case of the "skip_duplicated_types_on_filenames" filter.
Reviewed By: martinoluca
Differential Revision: D5274248
fbshipit-source-id: 99b3f3d
Summary:
This diff tries to achieve the followings: if we have the following C++ codes:
```
bool foo(int x, int y) {
return &x == &y;
}
```
We want the C++ frontend to emit Sil as if the input is written as
```
bool foo(int x, int y) {
if (&x == &y) return 1; else return 0;
}
```
This matches the behavior of our Java frontend.
The reason why we prefer an explicit branch is that it will force the backend to eagerly produce two different specs for `foo`. Without the explicit branch, for the above example the backend would produce one spec with `return = (&x == &y)` as the post condition, which is not ideal because (1) we don't want local variables to escape to the function summary, and (2) with the knowledge that no two local variables may alias each other, the backend could actually determines that `&x == &y` is always false, emitting a more precise postcondition `return = 0`. This is not possible if we do not eagerly resolve the comparison expression.
Reviewed By: akotulski
Differential Revision: D5260745
fbshipit-source-id: 6bbbf99
Summary:
:
There are throw wrapper functions like `std::__throw_bad_alloc()` defined in both libstdc++ (https://github.com/gcc-mirror/gcc/blob/master/libstdc%2B%2B-v3/include/bits/functexcept.h) and libc++ (e.g. 907c1196a7/include/new (L145)). Folly actually exports some of them as well (diffusion/FBS/browse/master/fbcode/folly/portability/BitsFunctexcept.h). The function body of those wrappers merely throws the corresponding exception. My understanding is that the primary purpose of the wrappers is to throw the exception if everything goes well and to fall back to something reasonable when exception is disabled (e.g. when `-fno-exceptions` is passed to the compiler).
The problem is that infer doesn't really understand what those functions do, and I've seen some false positives get reported as a result of it. So to remove those FPs we need to either model them or handle them specially. Modeling those wrappers by either whitelisting them or overriding the include files turns out to be difficult, as those wrappers are only declared but not defined in the STL headers. Their implementations are not available to Infer so whitelisting them does nothing, and if I provide custom implementations in the headers then normal compilation process will be disrupted because the linker would complain about duplicated implementation.
What I did here is to replace functions whose name matches one of the throw wrapper's name with a `BuiltinDecls.exit`. I have to admit that this is a bit hacky: initially I was trying to do something more general: replacing functions with `noreturn` attribute with `BuitinDecls.exit`. That did not work because, CMIIW, the current frontend only exports function attributes for functions with actual bodies, not declaration-only functions. I'd love to be informed if there are better ways to handle those wrappers.
Reviewed By: jeremydubreil
Differential Revision: D5266030
fbshipit-source-id: 4580227
Summary:
:
Do not store dummy `_` into the stack.
This makes debugging a lot easier
Reviewed By: skcho
Differential Revision: D5275941
fbshipit-source-id: ce329a5
Summary:
:
What is relevant for the Buck integration is not the list of bugs that we find in a single target, which is essentially identical to testing `infer -- javac ...`, but to make sure that we still find the issues that are involving several Buck targets, and later other things like the caching mechanism.
This should also make the tests faster.
Reviewed By: jberdine, jvillard
Differential Revision: D5250205
fbshipit-source-id: 7f66b68
Summary:
I changed the link, so that now it works.
Closes https://github.com/facebook/infer/pull/666
Differential Revision: D5256662
Pulled By: dulmarod
fbshipit-source-id: 5ae622d
Summary: This change introduces the a new argument that lets you restrict the results of a differential report to only certain files.
Reviewed By: mbouaziz
Differential Revision: D5236626
fbshipit-source-id: 52711e9
Summary: Looks much less confusing when C++ templates with `<stuff>` are involved.
Reviewed By: mbouaziz
Differential Revision: D5255551
fbshipit-source-id: f4a93e6
Summary:
After D5245416 I was taking a closer look and decided it's best to get rid of the `Interprocedural` module altogether.
Since jeremydubreil's refactoring to pass the summaries around everywhere, this module doesn't do much (it used to make sure the summary actually got stored to disk).
Client code is shorter and simpler without this module.
Reviewed By: mbouaziz
Differential Revision: D5255400
fbshipit-source-id: acd1c00
Summary:
Only one instance will win in the end so it's not useful to double register.
Log when that happens. Currently it happens in the Java tests on
`InferBuiltins` but I don't understand why so I left it alone.
Reviewed By: jberdine
Differential Revision: D5217928
fbshipit-source-id: dc7ccca
Summary:
This avoids race conditions when two processes or more try to lock a file for
writing. It could be that the process losing the race writes less than the
winner, then we get rubbish at the end of the file. Calling `ftruncate(2)` inside the critical section makes sure the
contents of the file are erased first. The harmful race was observed in
xcodebuild sometimes, as it can call infer on the same file several times in
parallel (!).
Reviewed By: jberdine
Differential Revision: D5209177
fbshipit-source-id: 744169c
Summary: I tested on Fresco and this reduced the number of calls to Prover.check_disequal by 30%.
Reviewed By: cristianoc
Differential Revision: D5237774
fbshipit-source-id: 377545e
Summary: The docs for this said that it stores the summary to disk, which is no longer true. `compute_summary` is more descriptive of what it actually does now.
Reviewed By: jberdine
Differential Revision: D5245416
fbshipit-source-id: f5138cd
Summary: We had a model for `Pools.SimplePool`, but were missing models for `Pools.Pool`. Since `SimplePool` and `SynchronizedPool` both extend `Pool`, modeling it should cover all of the cases.
Reviewed By: ngorogiannis
Differential Revision: D5236280
fbshipit-source-id: 9bbdb25
Summary:
When dealing with differential's comparisons, SourceFiles in reports may not exist anymore because of changes between revisions.
Disable user visible warnings if desired, through the labeled argument `~warn_on_error`
Reviewed By: jvillard
Differential Revision: D5217097
fbshipit-source-id: 7a1542b
Summary:
The ThreadSafety analysis currently reports on methods only if some
class in the file defining the method is annotated ThreadSafe, or
if it is called by some other such method call. Conflating files and
classes is a bit of a Javaism that seems to be unnecessary.
Reviewed By: sblackshear
Differential Revision: D5182319
fbshipit-source-id: aa77754
Summary: This will make merlin aware of the sources in src/unit/, which are compiled when running tests
Reviewed By: jvillard
Differential Revision: D5217193
fbshipit-source-id: 18bf01a
Summary: This makes it possible to see which tainted parameter can flow to a sink, which is quite useful.
Reviewed By: jeremydubreil
Differential Revision: D5213297
fbshipit-source-id: 1371b5a
Summary:
:
No longer use deprecated reporting function for the suggest nullable checker
Depends on D5205009
Reviewed By: grievejia
Differential Revision: D5205843
fbshipit-source-id: f6dd059
Summary:
Now that we can run several inter-procedural analyses at the same time, we should no longer use the function `Reporting.log_error_deprecated` as it logs the errors in the specs table. This specs table is normally used for caching and will be deprecated in favor of having a cache summaries for the callees in the `Ondemand` module (to avoid deserialising a callee more than once within the same process).
This revision just renames the reporting functions.
Reviewed By: sblackshear
Differential Revision: D5205009
fbshipit-source-id: b066549
Summary:
Read/write race errors should always show one trace for a read and one trace for a write.
We forget to pass the conflicting writes to the reporting function in one case, which prevented us from showing a well-formed trace.
Fixed it by making the `conflicts` parameter non-optional
Reviewed By: jberdine
Differential Revision: D5209332
fbshipit-source-id: 05da01a
Summary: Can be useful in case there is compilation issue with the models
Reviewed By: jvillard
Differential Revision: D5208830
fbshipit-source-id: f31d84f
Summary:
This messes up with the Buck cache: if infer recaptures a file with only trivial changes that shouldn't affect the capture Buck will still believe it has to reanalyze everything that depends on that file if there's non-deterministic data in infer's output.
Re-use the `--buck` flag used by the Java Buck integration for mostly the same purposes. Add a few special cases for the flavours integration (eg: keep capture data).
Change perf stats registration to take `Config.buck_cache_mode` into account instead of relying on each call site to handle that peculiarity correctly. Also, there's no need to create the perf stats directories before calling the registration function since it will do that too.
Reviewed By: jeremydubreil
Differential Revision: D5192311
fbshipit-source-id: 334ea6e
Summary:
It is not used, so one fewer thing to track inside Python.
Note that Python does pass `--buck` to OCaml infer to make it aware that it is
running from within Buck, and the OCaml code uses that flag to trim infer-out
to only what's strictly necessary (and especially to remove non-deterministic
output that would mess with Buck's cache).
Reviewed By: jberdine
Differential Revision: D5200043
fbshipit-source-id: 1c84442
Summary:
Mutating a formatter in `dup_formatter` had unintended consequences of
double-printing newlines. There's actually no need not to make a fresh copy,
which avoids this problem.
Also, don't warn if the log file is still a buffer at the end of execution as
that can happen in some error cases, eg:
```
$ infer -- build
ERROR: (Invalid_argument "Unsupported build command build")
```
Reviewed By: jberdine
Differential Revision: D5199664
fbshipit-source-id: fc2731d
Summary:
We were saving them in infer-out/clang/ but that's bad for Buck's cache as
these files have randomly-generated names.
Reviewed By: dulmarod
Differential Revision: D5191884
fbshipit-source-id: b3a478b
Summary: These can be useful in other checkers that have a notion of footprint.
Reviewed By: jvillard
Differential Revision: D5189193
fbshipit-source-id: c5bd91b
Summary: Also makes the error message for clang commands a bit nicer to the eye.
Reviewed By: mbouaziz
Differential Revision: D5191664
fbshipit-source-id: 801ec72
Summary:
It's easier to distinguish what's checked into infer and what comes from the
plugin this way.
Reviewed By: akotulski
Differential Revision: D5191581
fbshipit-source-id: 579311e
Summary:
This should help prevent new modules being created that do not `open! IStd`.
Documented this in CONTRIBUTING.md.
Reviewed By: jberdine
Differential Revision: D5183552
fbshipit-source-id: 0f0a8ce
Summary:
First step toward addressing bad traces that happen in examples like
```
void sourceMethod() {
Obj source = (Obj) InferTaint.inferSecretSource();
callSameSink(null, source); // index: 1
}
void callSameSink(Obj o1, Obj o2) {
callMySink1(o1); // flows via o1 ~= index 0, don't expand
callMySink2(o2); // flows via o2 ~= index 1, can expand
}
void callMySink1(Obj o) {
... // maybe interesting something happens here that doesn't happen in callMySink2
InferTaint.inferSensitiveSink(o); // flows via o ~= index 0, can expand
}
void callMySink2(Obj o) {
InferTaint.inferSensitiveSink(o); // flows via o ~= index 0, can expand
}
```
The issue is that when we recreate a trace to the sink starting from `sourceMethod`, we don't know which of the calls to `callMySink` to expand/include in the trace.
If we expand the call to `callMySink(o1)`, we'll get a bogus trace.
In this example that's not such a big deal, but imagine the case where the first call to `callMySink` is a different function that transitively calls the sink through some long and confusing path.
Remembering the index at which taint flows into each sink will let us choose which sinks are safe to expand.
This diff just adds indexes to the API; it's not actually propagating the index info or using it during expansion yet.
Reviewed By: jeremydubreil
Differential Revision: D5170563
fbshipit-source-id: ba4b096
Summary:
Change the API of `Logging` wrt to writing to files and to the console (see
changes in logging.mli).
Write only to one log file: infer-out/log. Prefix each line with the kind of
warning and the PID of the process emitting it. Writing with `O_APPEND` is
atomic so the file should not get garbled by concurrent writes. To get the
output of a single process, find out which one interests you by looking at
infer-out/log, then `grep ^[<PID>] infer-out/log`.
Introduce 3 log levels for debug output and command-line options to set them
for various categories individually.
Change tons of `"\n"` to `"@\n"` so the `Format` module is aware of newlines
without us having to look through every character of every logged string for
`\n` characters.
Reviewed By: mbouaziz
Differential Revision: D5165317
fbshipit-source-id: 93c922f
Summary:
This makes it clearer that something went wrong. Most `failwith` did not set
this prefix already, so I opted to append it automatically and remove it from
the few instances that added it manually.
Also add quotes around bad user arguments to lessen possible confusion.
Reviewed By: jberdine
Differential Revision: D5182272
fbshipit-source-id: 20e4769
Summary:
Introduce a new option `--no-report` (conversely `--report`) to stop reporting
after the analysis. This is useful to call sub-`infer-analyze` processes with
as they shouldn't compute "result.json" or report bugs to stderr. This bug
would only manifest itself when per-procedure parallelism disabled, which
explains why it was noticed only on Java.
Reviewed By: jberdine
Differential Revision: D5182110
fbshipit-source-id: a892470
Summary:
This is a refactoring diff to put the info into the abstract domain
to track when we have done steps which would invalidate "I think I have a proof".
Subsequent diffs will start manipulating ThumbsUpDomain
Reviewed By: sblackshear
Differential Revision: D5172181
fbshipit-source-id: 51ceba6
Summary:
The logic is not that simple and this will be needed in a later diff to create
the log file as early as possible.
Reviewed By: jberdine
Differential Revision: D5173128
fbshipit-source-id: 830f105
Summary: This also allows us to better test that the new commands will keep working.
Reviewed By: jeremydubreil
Differential Revision: D5172891
fbshipit-source-id: 169bd6f
Summary:
Spacetime profiling showed that this was allocating a lot more than it needs
to. Switching to a `Hashtbl` makes the memory overhead go away, and halves the
memory consumption of the whole frontend on some pathological files.
This also brings the file "clang_ast_main.ml" into the infer repo, renamed to
"ClangPointers.ml" (and given an mli). It's useful to have something like
"clang_ast_main.ml" checked into the facebook-clang-plugins repo to illustrate
how to use the OCaml AST visitor generated by atdgen, but it can be simplified
to be more pedagogical instead of being the visitor used in infer.
Reviewed By: jberdine
Differential Revision: D4884383
fbshipit-source-id: 88f324a
Summary: We were almost always using `~report_reachable:true`, and in the cases where we weren't it is fine to do so. In general, a sink could read any state from its parameters, so it makes sense to complain if anything reachable from them is tainted.
Reviewed By: mbouaziz
Differential Revision: D5169067
fbshipit-source-id: ea7d659
Summary:
This was a subtle one. The ranking function of `aux` is the cardinality of `m`..
But if `may_alias` is not reflexive, then `k_part` will be empty, `non_k_part` will be the same size, and we'll diverge.
Sneakily, `may_alias` is actually *not* reflexive because `is_subtype t1 t2` doesn't check for the equality of `t1` and `t2`.
That is confusing and should be fixed separately.
For now, just make sure `may_alias` is always reflexive and add an assertion that `k_part` is never empty.
Reviewed By: jeremydubreil
Differential Revision: D5177427
fbshipit-source-id: 0549d6a
Summary: Have found this useful in Quandary for fbcode, where we want to do this for folly due to its use of assembly (details in comments).
Reviewed By: mbouaziz
Differential Revision: D5167564
fbshipit-source-id: bf6d7e0
Summary:
Now `infer analyze` really has the same behaviour as `infer -- analyze`.
Previously it wouldn't create report.json or report.
Reviewed By: jeremydubreil
Differential Revision: D5172875
fbshipit-source-id: 8f9ddd1
Summary: Needed higher-up the stack, useful to have in the API in general.
Reviewed By: jberdine
Differential Revision: D5165153
fbshipit-source-id: 714aeea
Summary:
This will be needed higher up in the stack because the new `ProcessPool` module
will need to call into `Logging` to refresh the logging formatters to get the
right PID when writing to the log file.
+remove dead code `iter_parallel`
Reviewed By: jberdine
Differential Revision: D5165130
fbshipit-source-id: 95c949b
Summary:
I should not push debugging code to the repo
I should not push debugging code to the repo
I should not push debugging code to the repo
I should not push debugging code to the repo
I should not push debugging code to the repo
I should not push debugging code to the repo
...
Reviewed By: martinoluca
Differential Revision: D5164723
fbshipit-source-id: d944916
Summary:
For now, we just support clearing the taint on a return value.
Ideally, we would associate a kind with the sanitizer and only clear taint that matches that kind.
However, it's fairly complicated to make that work properly with footprint sources.
I have some ideas about how to do it with passthroughs instead, but let's just do the simple thing for now.
Reviewed By: jeremydubreil
Differential Revision: D5141906
fbshipit-source-id: a5b8b5e
Summary: Allow type variables in `Typ.desc`. It will be used to store template type arguments.
Reviewed By: jberdine
Differential Revision: D5154757
fbshipit-source-id: 55b8e81
Summary:
- model `exit` as `Bottom`
- model `fgetc` as returning `[-1; 255]` rather than `[-1; +oo]`
- reduced the number of model functions for simple models
Reviewed By: KihongHeo
Differential Revision: D5137485
fbshipit-source-id: 943eeeb
Summary:
1. `noexcept` was missing from `unique_ptr` constructors leading to compilation errors in some edge cases
2. In case `unique_ptr` specified custom deleter with custom `deleter::pointer`, there could be compilation errors due to invalid cast from `deleter::pointer` to `void*`. Add extra overload of `model_set` to prevent this issue
Reviewed By: jberdine
Differential Revision: D5147071
fbshipit-source-id: 2586701
Summary:
This is a minimal change to (poorly) recognize and model std::mutex
lock and unlock methods, and to surface all thread safety issues for
C++ based on the computed summaries with no filtering.
This ignores much of the Java analysis, including everything about the
Threads domain. The S/N is comically low at this point.
Reviewed By: sblackshear
Differential Revision: D5120485
fbshipit-source-id: 0f08caa
Summary:
ThreadSafety.may_alias crashed on C++ code because it assumed Java
field names.
Reviewed By: sblackshear
Differential Revision: D5147284
fbshipit-source-id: d10841f
Summary: The previous error message recommended annotating the method in question with `GuardedBy`, which doesn't actually work.
Reviewed By: jeremydubreil
Differential Revision: D5149661
fbshipit-source-id: d935aec
Summary:
This diff fixes unintentional bottoms in pointer arithmetic of inferbo.
The pointer arithmetic on addresses of variables (not array) just returns
the operand.
Reviewed By: jvillard
Differential Revision: D5060424
fbshipit-source-id: 495d8b8
Summary: Using Conjunction for thread join has known false negatives. Finer grained recording of threading information fixes this.
Reviewed By: sblackshear
Differential Revision: D5111161
fbshipit-source-id: aab483c
Summary:
All files that match the regular-expressions passed via `--skip-analysis-in-path` are just compiled.
With this change, you can also opt for not compiling those files at all, by passing the `--skip-analysis-in-path-skips-compilation` argument
Reviewed By: mbouaziz
Differential Revision: D5121583
fbshipit-source-id: 4e1325a
Summary:
A recent diff tried to replace `L.out "error message"; assert false` with
`failwith "error message"` but infer relies on the type of raised exceptions to
sometimes keep going. A more careful change will be needed but in the meantime
restore the old behaviour.
Reviewed By: jberdine
Differential Revision: D5112969
fbshipit-source-id: 713fe20
Summary:
Recently we changed the binaries we build and use but it wasn't obvious that
some of the old binaries disappeared. For instance, nothing short of `git clean
-xfd` would get rid of "infer/bin/InferPrint", which can lead to frustrating
attempts to make InferPrint not segfault.
Mitigate this in two ways:
- be more strict in the binaries we ignore in .gitignore, so InferPrint would should up in "git status"
- be less strict in the binaries we clean out with `make clean` so that
InferPrint et al. gets deleted by `make clean`
Reviewed By: jberdine
Differential Revision: D5120573
fbshipit-source-id: 44e7954
Summary: There were some leftover uses of the `Tracing` analyzer option. While I was at it, I also rename the `Config` option name.
Reviewed By: jberdine
Differential Revision: D5113489
fbshipit-source-id: 68d5cc8
Summary: The debug HTML for Quandary/thread-safety was still printing the SIL instructions, which is not very helpful. Print the HIL instructions instead.
Reviewed By: jeremydubreil
Differential Revision: D5112696
fbshipit-source-id: a0aa925
Summary:
Try and enforce the following rules:
- stderr is for updating the user about progress or errors
- Introduce Logging.progress that outputs to stderr, but honours --quiet
- Logging.stderr is as before
- Logging.out now prints to stderr (or to log files as before if set up) and
not stdout. If some information should go on stdout then the user should be
able to rely on it (ie, it's not just some progress message). For now only
the summary of the errors is printed on stdout by default.
- Logging.err* functions are gone. If the error is user-visible, it should be
Logging.stderr, or `failwith`. If not, go to the same log file as other
output, which personally I find much more convenient than having to dig through
2 log files every time I'm looking for some output.
Reviewed By: jberdine
Differential Revision: D5095720
fbshipit-source-id: 68999c9
Summary: This fixes a couple of false positives as objects of BufferedReader don't need to be closed if the wrapped reader resource gets closed correctly.
Reviewed By: sblackshear
Differential Revision: D5106596
fbshipit-source-id: 725fb80
Summary:
`infer analyze ...` (and `InferAnalyze` before it) was not actually running the
analysis in parallel, unlike `infer -- analyze`, which we want to deprecate.
Reviewed By: jberdine
Differential Revision: D5095676
fbshipit-source-id: ec28465
Summary: Gflags is a popular library used to create command line arguments. Flags shouldn't flow directly to `exec` etc.
Reviewed By: jvillard, mbouaziz
Differential Revision: D5058393
fbshipit-source-id: ab062f8
Summary: Useful to have Eradicate and Biabduction agree on how to inform that the analysis that some objects are not null.
Reviewed By: sblackshear
Differential Revision: D5075127
fbshipit-source-id: 9e56981
Summary: The Buck cache was not correctly invalidated when switching between the different analysis mode. This was causing the analysis results to be mixed up. This revision should fix this.
Reviewed By: sblackshear
Differential Revision: D5073606
fbshipit-source-id: eb14418
Summary: String are very important for taint analysis, have to make sure that we have the right models/the right behaviors for unknown code.
Reviewed By: jvillard
Differential Revision: D5054832
fbshipit-source-id: 7e7ee07
Summary:
Interestingly, this crashes the build in a vagrant vm:
```
[*ERROR**][2799] findlib: [WARNING] Interface ctl_parser_types.cmi occurs in several directories: ., clang
[*ERROR**][2799] File "clang/ComponentKit.ml", line 1:
[*ERROR**][2799] Error: The files ctl_parser_types.cmi and clang/cFrontend_checkers.cmi
[*ERROR**][2799] make inconsistent assumptions over interface Ctl_parser_types
[*ERROR**][2799] Command exited with code 2.
```
Reviewed By: mbouaziz
Differential Revision: D5070024
fbshipit-source-id: 01f83fc
Summary:
After:
```
$ infer run -- clang -c examples/hello.c
Capturing in make/cc mode...
Found 1 source file to analyze in /home/jul/infer/infer-out
Starting analysis...
legend:
"F" analyzing a file
"." analyzing a procedure
F.
Found 1 issue
examples/hello.c:14: error: NULL_DEREFERENCE
pointer `s` last assigned on line 13 could be null and is dereferenced at line 14, column 3
12. void test() {
13. int* s = NULL;
14. > *s = 42;
15. }
Summary of the reports
NULL_DEREFERENCE: 1
```
Before, legend and analysis run were separated by 2 lines, one is now before
and the other is in the log files only:
```
Capturing in make/cc mode...
Starting analysis...
legend:
"F" analyzing a file
"." analyzing a procedure
Found 1 (out of 1) source files to be analyzed in /home/jul/infer/infer-out
per-procedure parallelism jobs:4
F.
Found 1 issue
examples/hello.c:14: error: NULL_DEREFERENCE
pointer `s` last assigned on line 13 could be null and is dereferenced at line 14, column 3
12. void test() {
13. int* s = NULL;
14. > *s = 42;
15. }
Summary of the reports
NULL_DEREFERENCE: 1
```
Reviewed By: mbouaziz
Differential Revision: D5069590
fbshipit-source-id: 8843422
Summary:
Previously all knowledge of the dynamic length of such arrays was lost to infer:
```
void foo(int len) {
int a[len];
}
```
The translation of this program would make no reference to `len` (except as a
param of `foo`).
Translate this "initialization" using the existing `__set_array_length` infer
builtin, as:
```
# Declare local a[_]
n$0 = len;
__set_array_length(a, len);
```
update-submodule: facebook-clang-plugins
Reviewed By: mbouaziz
Differential Revision: D4969446
fbshipit-source-id: dff860f
Summary: There was no option to trigger this checker so it was not possible to enable it when not running the default list of checkers
Reviewed By: jberdine
Differential Revision: D5057088
fbshipit-source-id: 7af36f5
Summary:
This commit fixes a problem that the buffer overrun checker incorrectly
stops when a global variable (bottom) is involved in control flow.
In the new version, abstract memories return Top for unanalyzed abstract
variables.
Reviewed By: mbouaziz
Differential Revision: D5016447
fbshipit-source-id: 5132448
Summary: The issues that are not reported by default are all experimental issues from the biabduction analysis. In that case, it is easier to use a blacklist of errors to filter out so that the issues found by the checkers based on the AI framework can be reported by default without having to add them to the whitelist.
Reviewed By: jvillard
Differential Revision: D5051327
fbshipit-source-id: 2a93b11
Summary:
The code was pretty fragile, it's less fragile now. We should probably just
delete that and start outputting proper class/package info directly in the
report.json instead of reverse-engineering them.
Fixes#640
Reviewed By: jeremydubreil
Differential Revision: D4905973
fbshipit-source-id: 1590067
Summary:
An array has a static or dynamic length (number of elements), but it also has a
stride, determined by the type of the element: `sizeof(element_type)`. We don't
have a good `sizeof()` function available on SIL types, so record that stride
in the array type.
update-submodule: facebook-clang-plugins
Reviewed By: mbouaziz
Differential Revision: D4969697
fbshipit-source-id: 98e0670
Summary: In particular, the heuristics for propagating taint via unknown code needs to be aware of the frontend's trick of introducing dummy return variables.
Reviewed By: mbouaziz
Differential Revision: D5046345
fbshipit-source-id: da87665
Summary:
HIL had only been tested in Java, and it made some assumptions about what array expressions look like (the LHS is always resolvable to an access path) and assignments (the LHS is always an access path) that aren't true in C.
Fixed the code so we won't crash in this case.
Thanks to jeremydubreil for catching this.
Reviewed By: jeremydubreil
Differential Revision: D5047649
fbshipit-source-id: e8484f4
Summary:
There are two pointer-related operations you can do in C++ but not Java that we need to support in taint analysis:
(1) `*formal_ptr = ...` when `formal_ptr` is a formal that's a pointer type. Java doesn't have raw pointers, so we didn't need to handle this case.
(2) Passing by reference, which Java also doesn't have (everything is pass-by-value).
Reviewed By: mbouaziz
Differential Revision: D5041246
fbshipit-source-id: 4e8f962
Summary:
Introduce `infer-<command>` for each command, except for internal commands
(only `infer-clang` for now) which are not exported. Install these executables
(which are just symlinks to `infer`) on `make install`. The main executable
looks at the name it was invoked with to figure out if it should behave as a
particular command.
Get rid of `InferClang`, `InferAnalyze`, and `InferPrint`. As a bonus, we now
only need to build one executable: `infer`, which should be a few seconds
faster (less link time).
`InferAnalyze` is now `infer-analyze` and `InferPrint` is `infer-print`. To run
`InferClang`, use a symlink named `clang`, `clang++`, etc. to `infer`. There
are such symlinks available in "infer/lib/wrappers/" already.
I also noticed that the scripts in xcodebuild_wrappers/ don't seem useful
anymore, so use wrappers/ instead, as for `make`.
Reviewed By: mbouaziz
Differential Revision: D5036495
fbshipit-source-id: 4a90030
Summary:
`infer clang ...` was not being handled correctly and would error incorrectly.
Small fix before bigger change.
Reviewed By: mbouaziz
Differential Revision: D5036447
fbshipit-source-id: 87fcc40
Summary: It's useful to have all the options in a single man page for discoverability.
Reviewed By: mbouaziz
Differential Revision: D5028007
fbshipit-source-id: 37f8d2e
Summary:
Allows one to dump the manuals in various formats:
- plain: plain text
- pager: default, display the man page in all its glory inside a pager
- groff: the source code of the man page
- auto: pager or plain
Reviewed By: mbouaziz
Differential Revision: D5027636
fbshipit-source-id: 3b97edc
Summary:
Glorious, glorious man pages.
This changes a bunch of things that were hard to break up from the diff, so the
resulting diff is big.
Use `Cmdliner.Manpage` to format man pages (and also format a bit ourselves
since it is so stubborn).
As a bonus, introduce the following subcommands:
```
infer run ... # same as default mode with -- before
infer capture ... # -a capture
infer compile ... # -a compile
infer analyze ... # InferAnalyze
infer report ... # InferPrint
infer diff ... # this one is not new
infer clang ... # InferClang, not that you should use it
```
The man pages can still be improved a lot. Notable missing sections:
`ENVIRONMENT`, stuff about .inferconfig, some example usage, `DESCRIPTION`, ...
Reviewed By: jberdine
Differential Revision: D4921083
fbshipit-source-id: 9602230
Summary:
With this change, running the biabduction analysis with
infer -a infer -- ...
or with:
infer -a checkers --biabduction -- ...
take the same time and give the same list of results.
Reviewed By: sblackshear
Differential Revision: D5026676
fbshipit-source-id: ef23911
Summary: Same as D5026082, but allowing specification in JSON rather than harcoded in Infer.
Reviewed By: jeremydubreil
Differential Revision: D5030042
fbshipit-source-id: 8a6cfee
Summary:
In the case of the Buck integration for Java, the summary of the procedure may be found from the classpath even though the procedure description is not available.
Depends on D5027049
Reviewed By: jvillard
Differential Revision: D5027188
fbshipit-source-id: b1a6095
Summary: The procedure description is available when initializing the analysis summary, so it is simpler to use it than to rely on loading the data from the attributes.
Reviewed By: jvillard
Differential Revision: D5027049
fbshipit-source-id: 92cac5c
Summary: A lot of C++ library functions look like this, so it's important to have.
Reviewed By: mbouaziz
Differential Revision: D5026082
fbshipit-source-id: 6f421b6
Summary: Stops Quandary errors from getting dropped on the floor when it runs alongside the other checkers.
Reviewed By: jeremydubreil
Differential Revision: D5010801
fbshipit-source-id: 2847f61
Summary: Making sure simple passthroughs like the identity function work in C++.
Reviewed By: mbouaziz
Differential Revision: D5024031
fbshipit-source-id: ce48ead
Summary: This actually fixes issues of infinite loop as the function `Specs.set_status` was saving the `Active` status in the summary from the specs table which could differ from the summary passed as argument to the checkers
Reviewed By: sblackshear
Differential Revision: D5025923
fbshipit-source-id: c23a6f9
Summary:
Now,
infer -a infer -- ...
and
infer -a checkers --biabduction -- ...
will return the same list of errors
Reviewed By: sblackshear
Differential Revision: D5023223
fbshipit-source-id: f52ce5d
Summary:
Needed because this is how the Clang frontend translates returns of non-POD, non pointer values (I think)?
Will handle the more general case of pass by reference soon.
Reviewed By: jvillard
Differential Revision: D5017653
fbshipit-source-id: 1fbcea5
Summary:
Ran the build with -w,-32 , delete code, repeat, until a fixpoint of no more warnings is reach.
Unfortunately we cannot fatal on w32 because ppx_compare can generate dead code (eg `compare_t` and only `compare` is used).
Reviewed By: mbouaziz
Differential Revision: D4945800
fbshipit-source-id: c95afb6
Summary:
`[a, b] < [a, _]` and `[_, a] < [b, a]` are most probably false (it comes from size < size)
Mark definitely unsatisfied conditions as B1, others as B2+
Reviewed By: KihongHeo, jvillard
Differential Revision: D4962107
fbshipit-source-id: ba8f469
Summary:
The bufferoverrun checkers can now be run with:
infer -a checkers --bufferoverrun -- ...
Reviewed By: jeremydubreil
Differential Revision: D5010689
fbshipit-source-id: 2eaa396
Summary:
The Siof checkers can now be run with:
infer -a checkers --siof -- ...
and also runs by default using:
infer -a checkers -- ...
Reviewed By: jberdine
Differential Revision: D5009731
fbshipit-source-id: e0e2168
Summary: Pass the classpath infromation from the javac command line option file to allow the dection of errors accros Buck targets
Reviewed By: sblackshear
Differential Revision: D5018329
fbshipit-source-id: cf13198
Summary:
First step to be able to enable and disable the checkers to run in the following form:
> infer -a checkers --checker1 --checker2 --checker3 -- ...
and have a predefined list of checkers that are run by default with:
> infer -a checkers -- ...
Reviewed By: sblackshear
Differential Revision: D5007377
fbshipit-source-id: d7339ef
Summary:
While working on making the AI framework simpler to use, it become hard to change the shared API while keeping these unused checkers compiling, and even harder to keep their functionality since there is no tests for them.
Also, these checkers are not useful as proof of concept since using the AI framework is the preferred way to write new kinds of analysis now.
Reviewed By: sblackshear
Differential Revision: D4999387
fbshipit-source-id: 497284b
Summary:
Bufferoverrun-specific model for std::vector
Requires `--bufferoverrun` command line flag
Reviewed By: akotulski
Differential Revision: D4962136
fbshipit-source-id: f6b5f15
Summary:
This gives the option to run the biabduction analysis together with the other Clang-based checkers with the command:
infer -a checkers --biabduction -- ...
The filtering does not work yet because the filtering for the biabduction analysis matches the analyzer `Infer`, and does not filter much when the analyzer is `Checkers`, which is the case here.
Reviewed By: sblackshear
Differential Revision: D4773834
fbshipit-source-id: 16300cc
Summary:
`Location.dummy` is often used in a situation where we know the source file, but not the line/column.
Use `Location.none` for this instead.
Reviewed By: jeremydubreil
Differential Revision: D4991232
fbshipit-source-id: fc361a4
Summary:
Last step for converting thread-safety and quandary to HIL.
Push the logic for managing the id map and converting the instructions into a functor.
This way, client analyses can simply write HIL transfer functions and call the functor.
Reviewed By: jberdine
Differential Revision: D4989987
fbshipit-source-id: 485169e
Summary:
For now we just want to find bugs, let's do something smarter later (smash heap variables only when needed).
Depends on D4962107
Reviewed By: jvillard
Differential Revision: D4962121
fbshipit-source-id: 1b777a6
Summary:
Don't store redundant information in C++ template Type.Name.t.
New signature:
```
| CppClass (qual_name, template_args)
```
For example, for `std::shared_ptr<int>`, will look like this:
```
| CppClass (["std", "shared_ptr"], Template [int])
```
While it used to be:
```
| CppClass (["std", "shared_ptr<int>"], Template (["std", "shared_ptr"], [int]))
```
Reviewed By: jberdine, mbouaziz
Differential Revision: D4834512
fbshipit-source-id: cb1c570
Summary: The name of the source file was passed around everywhere but can also be accessed from the location associated to every node.
Reviewed By: sblackshear
Differential Revision: D4981848
fbshipit-source-id: 2ee592e
Summary: Now, all the summary access functions in the module `Specs` are of the form: `Specs.summary -> 'a`. This is a step toward making the analysis flow stateless.
Reviewed By: sblackshear
Differential Revision: D4976126
fbshipit-source-id: 28b6da1
Summary: This function is always used in the frontend where summaries don't exist yet
Reviewed By: akotulski
Differential Revision: D4979132
fbshipit-source-id: 8d49c52
Summary:
Before we understood ownership, we needed this to avoid a mountain of Builder-related FP's.
Now that we have fairly sophisticated understanding of ownership, we can kill this hack.
Reviewed By: jaegs
Differential Revision: D4940238
fbshipit-source-id: 8d86e57
Summary: Before, running any of these would crash with `Unsupported infer analyzer with Buck flavors:`
Reviewed By: jberdine
Differential Revision: D4970769
fbshipit-source-id: 76be6d5
Summary:
Add `volatile` and `restrict` type qualifiers. Change `Ast_expressions.create_*_type` functions
to always get optional type quals argument.
update-submodule: facebook-clang-plugins
Reviewed By: jberdine
Differential Revision: D4969634
fbshipit-source-id: 9a63bf7
Summary: This code only runs when Infer is running and is not reached when any other analyzer is used
Reviewed By: sblackshear
Differential Revision: D4973824
fbshipit-source-id: 700e24b
Summary: The Java frontend creates a single `tenv` file per `javac` invocation, but the code loading the `tenv` for a given Java procedure in the backend was not taking advantage of it. Also, with the lazy dynamic dispatch algorithm, the procedure name can be created on-demand and therefore defeat the approach to load the tenv by looking at the call graph to associate existing procedure names to the corresponding serialized tenv file. This diff should also fix this last point.
Reviewed By: sblackshear
Differential Revision: D4969254
fbshipit-source-id: 66ed318
Summary:
Title.
The way types are printed is completely valid, but little weird for some C++ programmers:
`int const` - same as `const int`
`int * const` - pointer is `const`, value under it is not
`int const *` - pointer is not `const`, but the value is
`int const * const` - both pointer and value are const
Reviewed By: jberdine
Differential Revision: D4962180
fbshipit-source-id: dcb02e3
Summary:
Modify the type of `Exp.Sizeof ...` to include the value that the expression
evaluates to according to the compiler, or None if it cannot be known
statically.
Use this information in inferbo.
Mostly unused in the BiAbduction checker for now, although it could be useful
there too.
update-submodule: facebook-clang-plugins
Reviewed By: mbouaziz
Differential Revision: D4953634
fbshipit-source-id: be0999d
Summary:
`libstdc++` includes `bits/unique_ptr.h` via `include "unique_ptr.h"` in `bits/locale_conv.h` which infer can't redirect to model headers. This leads to compilation issues.
To work around that, redirect include of `locale_conv.h` to include `unique_ptr` via `include <...>` before normal `locale_conv.h`.
Reviewed By: mbouaziz
Differential Revision: D4962314
fbshipit-source-id: d4b9830
Summary:
Bottom means unreachable, not unknown.
Replace Bottom by Top in:
- unknown procedure return value
- unknown constant
- closure, exceptions
- when there are more formals than actuals
Depends on D4961989
Reviewed By: KihongHeo
Differential Revision: D4962006
fbshipit-source-id: e2a153d
Summary:
- Use Logging for logging
- Add a few extra debug (not ON by default)
- No space before colon
Depends on D4961957
Reviewed By: KihongHeo
Differential Revision: D4961989
fbshipit-source-id: 7c8697d
Jeremy Dubreil
Sam Blackshear
Jia Chen
Dino Distefano
Martino Luca
Jules Villard
Mehdi Bouaziz
Sungkeun Cho
Kyriakos Nikolaos Gkorogiannis
Andrzej Kotulski
Dulma Churchill
Josh Berdine
Pavel Grafov
azhdar
Kihong Heo
Daiva Naudziuniene
Alexander Slesarev
Radu Grigore
Marco Concetto Rudilosso
Don Stewart
Peter O'Hearn
Ryan Rhee