Summary:
There was a race in serialization code where a reader could try to deserialize a partially overwritten value.
Here we use a `file.lock` to synchronize the writers, while the readers are not synchronized.
The atomic `rename` is used to move `file.lock` to `file` and make it available to readers.
Since `rename` is atomic, readers should see possibly stale, but not corrupted, data.
Reviewed By: sblackshear
Differential Revision: D4689664
fbshipit-source-id: dc5b546
Summary:
Read template arguments from the AST and if argument is a type, translate it into Sil type. Then, save this information into procname.
There is one ugly change - linters now may populate tenv (it's not saved anytwhere though)
Reviewed By: dulmarod
Differential Revision: D4635508
fbshipit-source-id: e806ca7
Summary:
When both an unprotected write and a read/write race emanate from the same line,
undoubtedly because of interprocedurality, strip the read/write report (for now).
Perhaps report the info in more succinct form later, but keep to one report/line.
Reviewed By: sblackshear
Differential Revision: D4685102
fbshipit-source-id: 291cf20
Summary:
There was a bug where we allowed ourselves to project local variables from the callee summary into an access path in the caller.
We should only be able to project callee variables that are in the footprint.
Reviewed By: jeremydubreil
Differential Revision: D4684868
fbshipit-source-id: 53a2b9d
Summary: This cleans up the domain/transfer functions, and it also means that we can now track reads that occur under synchronization.
Reviewed By: peterogithub
Differential Revision: D4674243
fbshipit-source-id: 8e13656
Summary: I noticed we don't have `T` or `S` to denote timeouts in debug mode anymore. Today I saw it's still in `--stats` mode. Bring this feature back to `--debug` as well.
Reviewed By: cristianoc
Differential Revision: D4681669
fbshipit-source-id: 16ef19b
Summary:
When parsing .inferconfig and the env var, allow all modes of infer. This
allows people to provide default values for options in .inferconfig. This
requires subcommands' options to be all distinct, but that's already the case.
Reviewed By: jberdine
Differential Revision: D4674672
fbshipit-source-id: 992b454
Summary:
Updated version of the plugin exports some missing `VarDecls`. To make sure it doesn't break again,
add a test that didn't work before.
Reviewed By: dulmarod
Differential Revision: D4674123
fbshipit-source-id: 0c1677a
Summary:
Provide proper constructor functions for all Typenames following `Typename.Java` module.
Always use those constructor functions.
Reviewed By: jeremydubreil
Differential Revision: D4673943
fbshipit-source-id: 81625c2
Summary: This allows to run the analysis of every procedure on-demand separately from the cluster callbacks
Reviewed By: sblackshear
Differential Revision: D4664936
fbshipit-source-id: d218328
Summary: On Java Buck projects, InferPrint was loading all the specs files from all the jars in the classpath. This was affecting the performance a lot when the analysis was reporting a lot of issues.
Reviewed By: cristianoc
Differential Revision: D4673226
fbshipit-source-id: 6927836
Summary:
It used to be string which:
1. Doesn't have enough information for parametric models
2. Doesn't have good type
Changing this blows up in clang frontend, but I think it's for the better
Reviewed By: jberdine
Differential Revision: D4667633
fbshipit-source-id: 9f61bf1
Summary:
Eradicate detects circular field initializations (e.g. a field initialized with itself)
by checking in the typestate at the end of the constructor whether the origin
of the field is a field name in the current class.
This has the problem that the following initialization pattern is not recognized as correct:
C(C x) { this.field = x.field }
To fix the issue, the origin information for field accesses x.f is extended
with the origin information of the inner object x.
Circularities are detected if the origin of x is "this".
Reviewed By: jberdine
Differential Revision: D4672472
fbshipit-source-id: 9277bdd
Summary:
Turns out that we were special-casing the `Infer Driver` case for no particular
reason and that was preventing `infer --diff --help` from working as expected.
Reviewed By: martinoluca
Differential Revision: D4666988
fbshipit-source-id: 0868d4b
Summary: `CContext.curr_class` contained information about a class for a method as a string, while it's better to use pointer for this.
Reviewed By: jvillard
Differential Revision: D4666613
fbshipit-source-id: 1c0735b
Summary: Previously, we wouldn't report races where the write was under synchronization.
Reviewed By: peterogithub
Differential Revision: D4658850
fbshipit-source-id: e9f4c41
Summary: I encountered cases where the class name part of the method name was passed as `(None, "package.Class")` instead of `("package", "Class")` and therefore incorrectly failing some inequality checks
Reviewed By: sblackshear
Differential Revision: D4662617
fbshipit-source-id: 98ee3e3
Summary: We had our own mechanism for saving `./configure` flags, which does not work if flags contain whitespace. It turns out that `./config.stats --config` is a thing though.
Reviewed By: mbouaziz
Differential Revision: D4642422
fbshipit-source-id: ae075ca
Summary:
Given two analysis results, it's now possible to compare them with the following command:
infer --diff --report-current reportA.json --report-previous reportB.json --file-renamings file_renamings.json
this command will then generate 3 files in `infer-out/differential/{introduced, fixed, preexisting}.json`, whose meaning is the following:
- `introduced.json` has all issues in `current` that are not in `previous`
- `fixed.json` has all issues in `previous` that are not in `current`
- `preexisting.json` has all issues that are in both `current` and `previous`
The json files generated can then be used to categorise results coming from incremental analyses of a codebase.
Reviewed By: jvillard
Differential Revision: D4482517
fbshipit-source-id: 1f7df3e
Summary: Make backend aware of some template instantiation arguments for template classes.
Reviewed By: jberdine
Differential Revision: D4421338
fbshipit-source-id: f7d72b4
Summary:
In order to be able to report races like
```
synchronized write() {
this.f = ...
}
read() {
return this.f;
}
```
, we need to track writes that happen inside of synchronization as well as writes that happen outside of synchronization.
This diff takes a step toward making that possible by defining an "AccessDomain" mapping a precondition for the safety of a write ( {Safe, SafeIf i, Unsafe} =~ {true, owned(i), false} ) to a set of writes that are safe if the precondition will hold.
We're not actually tracking safe writes yet, but this domain will make it easy to do so.
This also lets us kill the conditional writes/unconditional writes combo, which was a bit clumsy
Reviewed By: peterogithub
Differential Revision: D4620153
fbshipit-source-id: 2d9c5ef
Summary:
Make sure `inferTraceBugs` works with non-ascii characters. Harden the code a
bit more on the way.
Fixes#592
Reviewed By: mbouaziz
Differential Revision: D4659016
fbshipit-source-id: 79f7a80
Summary:
* Makes running Android example simpler - APG 2.2.0 automatically downloads dependencies so long as the user has previously accepted the Android SDK License.
* APG 2.2.0 requires Gradle 2.14 or newer, so updated to latest.
* Added `buildOptions.abortOnError false` so the build doesn't report any lint issues - the sample is designed to show Infer working, not Android lint.
Closes https://github.com/facebook/infer/pull/595
Reviewed By: dulmarod
Differential Revision: D4642707
Pulled By: jvillard
fbshipit-source-id: a2b2e02
Summary: Not priting it results in staring terminal not priting anything for a long time. Just to realize `make` just started to build clang.
Reviewed By: martinoluca, jvillard
Differential Revision: D4642791
fbshipit-source-id: 177a228
Summary: The implementation of `touch_start_file` was not updating the timestamp when the file exists.
Reviewed By: jvillard
Differential Revision: D4657708
fbshipit-source-id: 0a88ebc
Summary: I accidentally save a summary with the wrong procedure name, which was affecting the analysis in some weird way. This makes this case no longer possible
Reviewed By: cristianoc
Differential Revision: D4654002
fbshipit-source-id: 9fcbe4e
Summary: This function was actually doing the same as `Idenv.create`.
Reviewed By: cristianoc
Differential Revision: D4654241
fbshipit-source-id: 87c098b
Daniel Wagner-Hall
Andrzej Kotulski
Dino Distefano
Cristiano Calcagno
Jeremy Dubreil
Dulma Churchill
Peter O'Hearn
Sam Blackshear
Jules Villard
Matthew Haughton
Martino Luca
Ben Hudson