Summary:
The previous domain for SIOF was duplicating some work with the generic Trace
domain, and basically was a bit confused and confusing. A sink was a set of
global accesses, and a state contains a set of sinks. Then the checker has to
needlessly jump through hoops to normalize this set of sets of accesses into a
set of accesses.
The new domain has one sink = one access, as suggested by sblackshear. This simplifies
a few things, and makes the dedup logic much easier: just grab the first report
of the list of reports for a function.
We only report on the fake procedures generated to initialise a global, and the
filtering means that we keep only one report per global.
Reviewed By: sblackshear
Differential Revision: D5932138
fbshipit-source-id: acb7285
Summary:
With this change and the previous facebook-clang-plugins change, infer no
longer exhausts the biniou buffer when reading the serialized C++ AST.
update-submodule: facebook-clang-plugins
Reviewed By: mbouaziz
Differential Revision: D5891081
fbshipit-source-id: cf48eac
Summary:
We need to make sure that destructors of virtual base classes are called only once. Similarly to what clang does, we have two destructors for a class: a destructor wrapper and an inner destructor.
Destructor wrapper is called from outside, i.e., when variables go out of scope or when destructors of fields are being called.
Destructor wrappers have calls to inner destructors of all virtual base classes in the inheritance as their bodies.
Inner destructors have destructor bodies and calls to destructor wrappers of fields and inner destructors of non-virtual base classes.
Reviewed By: dulmarod
Differential Revision: D5834555
fbshipit-source-id: 51db238
Summary:
Simple instance of the problem: analyzing the following program times out.
```
#include <tuple>
void foo() {
std::tuple<std::tuple<int>> x;
}
```
Replacing `std::tuple<std::tuple<int>>` by `std::tuple<int>` makes the analysis
terminate.
In the AST, both tuple<tuple<int>> and tuple<int> have the same template
specialization type: "Pack" (which means we're supposed to go look into the
arguments of the template to get their values). This is not information enough
and that's the plugin fault.
On the backend side, this means that two types have the same Typ.Name.t, namely
"std::tuple<_>", so they collide in the tenv. The definition of
tuple<tuple<int>> is the one making it into the tenv. One of the fields of the
corresponding CxxRecord is of type "tuple<int>", which we see as the same
"tuple<_>", which causes the loop.
update-submodule: facebook-clang-plugins
Reviewed By: mbouaziz
Differential Revision: D5775840
fbshipit-source-id: 0528604
Summary: We inject destructor calls of base classes inside destructor bodies after the destructor calls of fields.
Reviewed By: dulmarod
Differential Revision: D5745499
fbshipit-source-id: 90745ec
Summary:
This allows the user to specify a different command to build the current version of the project vs to build the previous version of the project. Here's an example:
```
infer diff --gen-previous-build-command-script "echo clang -c hello.c" ... -- clang -c hello2.c
```
By default the two build commands are the same. If the script is to be used for both the current and the previous versions, then it's on the user to run it once first, eg:
```
infer diff --gen-previous-build-command-script "./myscript.sh previous" ... -- $(./myscript.sh current)
```
Reviewed By: martinoluca
Differential Revision: D5500989
fbshipit-source-id: 7374b44
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:
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:
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:
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:
Add support for Makefiles to the copyright linter. Makefiles are a bit
different than shell because they should start with the copyright notice
straight away (whereas shell starts with the #! stuff).
Reviewed By: mbouaziz
Differential Revision: D4786620
fbshipit-source-id: 504dc23
Summary:
It can be useful when debugging infer or the Makefiles themselves to see what
`make` is doing. Instead of editing Makefiles to remove `@` now you can `make
VERBOSE=1`.
This is just `git ls-files | grep -e Makefile -e '.*\.make' | xargs sed -e 's/^\t@/\t$(QUIET)/' -i`, and adding the definition of `QUIET` to Makefile.config.
Reviewed By: jeremydubreil
Differential Revision: D4779115
fbshipit-source-id: e6e4642
Summary:
Two issues in the previous code:
1. We'd just tack on `#compilation-database` so if there already are `#flavors`
in a Buck target then we get a malformed `#flavors#compilation-database`
instead of `#flavors,compilation-database`. There's already code to deal
with that for other flavors (`#infer-capture-all`), so extend and reuse that.
2. The code didn't work if there are spaces in target names (sigh). Harden the
code a bit so that it works. Unfortunately Buck doesn't escape spaces at all
in its `buck targets --show-output` output, so the parsing still relies on
there being no spaces in flavors to work correctly. Sample output:
```
$ buck targets --show-full-output //clang_compilation_database:Hel\ lo#compilation-database
Not using buckd because watchman isn't installed.
[+] PROCESSING BUCK FILES...0.1s [100%] 🐳 New buck daemon
//clang_compilation_database:Hel lo#compilation-database /home/jul/infer/infer/tests/build_systems/codetoanalyze/buck-out/gen/clang_compilation_database/__Hel lo#compilation-database.json
```
Also, some code in codetoanalyze/clang-compilation-database/ didn't compile, so
fix that.
Reviewed By: dulmarod
Differential Revision: D4714338
fbshipit-source-id: b8ae324
Summary:
We were including hex of empty string if mangled name was not empty (so for all C++ functions).
Instead, include hex of a source file only if it's not empty
Reviewed By: mbouaziz
Differential Revision: D4705388
fbshipit-source-id: 55b6587
Summary:
Procnames files are now reversed qualifier lists with `#` as separator (instead of `::` which needs to be escaped in bash).
Because of the mechanism that is used to obtain qualifiers, it also affects naming for ObjC classes.
Examples:
```
std::unique_ptr<int>::get -> get#unique_ptr<int>#std#__MANGLED,...__ // C++ method
folly::split -> split#folly#__MANGLED,..._ // function within namespace
NSNumber numberWithBool: -> numberWithBool:#NSNumber#class // ObjC method
```
Reviewed By: jvillard
Differential Revision: D4689701
fbshipit-source-id: c3acfc6
Summary: Some compilation databases give relatives paths for the `"file"` field. This is not ambiguous as there is also a `"dir"` field, so use that to make the path absolute when needed.
Reviewed By: dulmarod
Differential Revision: D4559145
fbshipit-source-id: be36a16
Summary:
This replaces the previous integration written in Python, which consisted in 1)
run the mvn command and parse its output to locate "directories containing
source files", 2) run on files named "*.java" in these directories. This meant
we had to run javac twice on each source file, and more importantly this
mechanism of finding source files was very fragile. In fact, I could not make
it work on several mvn projects I tried.
The new integration is based on parsing "pom.xml" to add an "infer-capture"
profile which instructs mvn to run `/path/to/infer` instead of `javac`. We also
add this profile to each maven submodule.
Users can specify an "infer-capture" profile themselves if the default one
doesn't work; in that case we don't inject our own "infer-capture" profile.
Reviewed By: jeremydubreil
Differential Revision: D4409613
fbshipit-source-id: d664274
Summary:
This makes it more obvious why infer would force a path to be absolute since we
base that decision on the resolved path. For instance:
```
$ mkdir foo
$ cd foo
$ ln -s ../examples goo
$ infer -- clang -c goo/hello.c
[...]
/home/jul/infer/examples/hello.c:14: error: NULL_DEREFERENCE
```
We see that the path is outside of the current directory clearly, whereas
before infer would report on "goo/hello.c".
Reviewed By: akotulski
Differential Revision: D4409579
fbshipit-source-id: 7172005
Summary: Our C++ model magic didn't work when instantiating smart pointers with volatile types. Fix it
Reviewed By: jvillard
Differential Revision: D4313271
fbshipit-source-id: 55ffb98
Summary: Globals that are constexpr-initializable do not participate in SIOF.
Reviewed By: sblackshear
Differential Revision: D4277216
fbshipit-source-id: fd601c8
Summary:
Whenever header file is in changed-files-index, it should be captured and analyzed on demand.
It was already being captured, but ondemand analysis wasn't triggered for code in header file. This diff does it.
Use hacky header->source mapping to go from header to source (cluster) and then analyze everything in that cluster (inlucing code coming from header)
Reviewed By: jberdine
Differential Revision: D4265495
fbshipit-source-id: 61606f4
Summary: When infer runs on preprocessed source, original files may not be around anymore. Don't crash infer when that happens.
Reviewed By: jvillard, jberdine
Differential Revision: D4258285
fbshipit-source-id: a19569c
Summary:
Currently cfg nodes are written into dot files in whatever order they
appear in a hash table. This seems unnecessarily sensitive, so this
diff sorts the nodes.
Reviewed By: dulmarod
Differential Revision: D4232377
fbshipit-source-id: a907cc6
Summary:
Implement heuristic to capture more of the user code:
In C++ there is a lot of interesting code in header files. On the other hand,
that code gets included in multiple places and we don't want to capture it by default (for performance reasons).
Right now we capture everything from source file + all symbols from headers that source file needs.
New heuristic will extend "capturing everything" to matching header files (ie. capture everything in X.h if source file is X.cpp)
Reviewed By: jberdine
Differential Revision: D4238008
fbshipit-source-id: 0528250
Summary:
Dealing with symbolic links in project root is tricky. To avoid it, always normalize all paths to sources with `realpath`.
Changes to tests are expected - infer started to resolve symbolic links which screws up with our testing mechanism.
Reviewed By: jberdine
Differential Revision: D4237587
fbshipit-source-id: fe1cb01
Summary:
Add test for compilation database and --changed-files-index option
Fix one bug that the test uncovered
Reviewed By: dulmarod
Differential Revision: D4198502
fbshipit-source-id: 9039c65
Summary: These are dangerous if you are trying to compare a type to a string, and they're also unsightly.
Reviewed By: jvillard
Differential Revision: D4189956
fbshipit-source-id: 14ce127
Summary: clang has very complicated logic what to translate based on `project_root` and filename. Add tests for different situations in regard of symbolic links in path/project_root
Reviewed By: jvillard
Differential Revision: D4168551
fbshipit-source-id: 586b364
Summary: Right now there is no test for compilation database integration. Add one
Reviewed By: jvillard
Differential Revision: D4118769
fbshipit-source-id: 5591de7
Summary: Make sure that infer ignores the .S file and still finds an issue in `hello.c`
Reviewed By: jvillard
Differential Revision: D4110622
fbshipit-source-id: 32f907e
Summary:
Use the output of `clang -###` to drive which commands to run. Attach the plugin to all commands starting with `-cc1`.
Benefits:
- support for compiling multiple files in one clang command, eg `infer -- clang -c file1.c file2.c`
- support for compile commands that do not target a `.o` file, eg `infer -- clang -S hello.c`
- support for `-cc1` compile commands
- more generally, run all commands that clang would run, and attach plugin in all compilation cases
Reviewed By: martinoluca
Differential Revision: D3366912
fbshipit-source-id: 98d5e3b
Summary:
When syntax highlighting the source excerpts that Infer prints on stdout, we
would crash if `pygments.lexers` did not find a suitable class given the name
of the source file. Instead, do not colorize when that's the case.
Reviewed By: martinoluca
Differential Revision: D3358115
fbshipit-source-id: ccb9b41
Summary:
- [python] decode strings coming from `os.*` commands
- [python] decode strings coming from the command-line
- [python] encode a few remaining unicodes into strings
- [java] replace lex/yacc parser for javac verbose output by regex-based matching to handle unicode in paths
- [make] random fix of `make test` to have `make clean test` work
- [integration tests] add e2e build integration tests for utf8 in the PWD
Closes#76
Reviewed By: martinoluca
Differential Revision: D3240809
fb-gh-sync-id: 8c2e1ed
fbshipit-source-id: 8c2e1ed
Summary:public
Simplifies the way to configure cmake to run infer's fake compiler commands.
Instead of `CC=/path/to/infer/infer/lib/capture/clang cmake .`, which is what
is advised on #25 and is now outdated because the paths to infer's clang has
changed since, simply run `infer -- cmake .`. The only caveat is that infer
tries to analyze the end result, and prints "No issues found". This could be
fixed later.
Reviewed By: jeremydubreil
Differential Revision: D3093162
fb-gh-sync-id: 99df50a
fbshipit-source-id: 99df50a
Summary:public
In Python 2, `shutil.rmtree()`, `os.walk()`, `os.path.join()`, etc. are not
happy when the locale cannot decode the filenames they have to deal with.
Decrease the likelihood of this happening by making the file names generated by
infer ascii-only.
Also ignore character decoding errors optimistically when reading the json
report file.
Add tests that we are able to run the analysis and report the bug on a function
with a utf8 name, and that we are able to remove the previous results
directory.
closes#287
Reviewed By: cristianoc
Differential Revision: D3058858
fb-gh-sync-id: b88cd35
shipit-source-id: b88cd35
Dulma Churchill
Jules Villard
Daiva Naudziuniene
Jia Chen
Mehdi Bouaziz
Andrzej Kotulski
Juergen Hoetzel
Cristiano Calcagno
Josh Berdine
Ryan Rhee
Sam Blackshear