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
Jules Villard
Jia Chen
Sungkeun Cho
Pavel Grafov
Josh Berdine
Dulma Churchill
azhdar
Jeremy Dubreil
Mehdi Bouaziz
Andrzej Kotulski
Kihong Heo
Martino Luca