Summary:
Races on volatile fields are less concerning than races on non-volatile fields because at least the read/write won't result in garbage.
For now, let's de-prioritize these writes by ignoring them.
Reviewed By: peterogithub
Differential Revision: D4434023
fbshipit-source-id: 05043ba
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:
Also make sure we don't introduce deprecated options in our repo, eg when
calling infer from infer.
Reviewed By: jeremydubreil
Differential Revision: D4430379
fbshipit-source-id: 77ea7fd
Summary:
We only ever use very few of the possible `Arg.spec` constructors and,
crucially, all of them declare a function to pass argument values to. This is
needed for the next diff, which adds deprecation messages.
Reviewed By: jeremydubreil
Differential Revision: D4430217
fbshipit-source-id: c5ffe5f
Summary: Just cleanup; gives us slightly less test code to maintain.
Reviewed By: jeremydubreil
Differential Revision: D4429265
fbshipit-source-id: d43c308
Summary:
Make the html output available to checkers when -g is used on the command-line.
A checker needs to call a function to start and finish the processing of each node,
and add prints during the processing.
This diff illustrates the case for Eradicate, by adding printing of the pre-state
and post-states.
Reviewed By: sblackshear
Differential Revision: D4421379
fbshipit-source-id: 67501ba
Summary:
Turns this was needed only because we want infer-out to be models/infer.
Passing `--buck` together with passing `-d models` to `javac` was achieving the
same thing in a more roundabout way.
Reviewed By: jeremydubreil
Differential Revision: D4423185
fbshipit-source-id: 7cafe3b
Summary:
Previously, we would first compute which build command is at hand, based on the
first argument after "infer --", then do everything depending on that piece of
information. However, the build command alone is not enough to know in which
"build mode" we are operating. For instance, there are several build modes
corresponding to "buck" build commands.
This led to duplication of the logic (to retrieve which build mode we are in in
the various phases of an infer run), and some invariants that had to be
re-asserted at various points in the code, eg that the arguments are not empty.
This diff adds a `build_mode` type (renaming the previous `build_mode` to
`build_system`) that identifies the various integrations we support. We compute
the build mode at the start of infer, then pass the build mode around.
Also, move `run_javac` to a new `integration/Javac.ml` file given that it's a
bit large.
Reviewed By: jberdine
Differential Revision: D4415074
fbshipit-source-id: db854a0
Summary:
If an access path rooted in some parameter `p` is accessed outside of synchronizaton, but `p` is owned by the caller, then we should not warn.
We will implement this by separating writes into "conditional" (safe if a certain parameter is owned by the caller" and "unconditional" (safe only if the caller synchronizes appropriately).
This diff just introduces the map type for conditional writes and changes the transfer functions accordingly.
We'll actually use the map in a follow-up.
Reviewed By: peterogithub
Differential Revision: D4400987
fbshipit-source-id: d2b8af8
Summary: `Toplevel` name is confusing - in ocaml world it means interactive ocaml shell (we call that "interactive"). In infer it meant "Toplevel infer binary". We already call it "driver" to avoid confusion, let's rename the code as well.
Reviewed By: jvillard
Differential Revision: D4415111
fbshipit-source-id: 1002f27
Summary: This allows to modify the structure of the buck project under test with less risk of breaking the tests
Reviewed By: sblackshear
Differential Revision: D4411721
fbshipit-source-id: 6ee2cc5
Summary: This fixes compilation database integration with buck. Some directories from command don't exist (specifically ones that should hold `dep.tmp`). To workaround this problem, create those directories when invoking clang command
Reviewed By: jvillard, martinoluca
Differential Revision: D4403580
fbshipit-source-id: 57bcfc7
Summary:
Fixes issue with template argument deduction with enable_shared_from_this as argument
```
#include<memory>
template<class T>
void makeWeak(const std::shared_ptr<T>& x) {}
struct X : public std::enable_shared_from_this<X>{
};
void test() {
X x
makeWeak(x.shared_from_this()); // compilation failed here - it was unable to deduce template parameter of makeWeak
}
```
Reviewed By: jvillard
Differential Revision: D4414788
fbshipit-source-id: 4d19c53
Summary:
1. One call to `Core.Std.String.slice` was wrong and caused the program to crash, and
2. The crash was silently ignored because the error code of uncaught OCaml
exceptions was the same as `CheckCopyright.copyright_malformed_exit_code` (=2)
Address both issues. Also build CheckCopyright with debug options.
Reviewed By: jberdine
Differential Revision: D4410306
fbshipit-source-id: d73b086
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:
`make byte` will populate infer/bin/ with bytecode version of each executable,
plus infer/bin/infer.byte (used to remember which of the native or byte
executables have been built most recently). `make infer` now also creates
infer/bin/infer.native, so that we're sure to replace the executables with
native/byte versions as appropriate.
This is to make debugging a tad easier:
make byte
ledit ocamldebug $(which infer) <infer args>
Whereas previously one had to:
make -C infer/src byte
ledit ocamldebug infer/_build/infer/backend/infer.byte <infer args>
Reviewed By: jberdine
Differential Revision: D4409476
fbshipit-source-id: ab5f57d
Summary:
Similar to marking classes ThreadConfined, we want to support marking fields as well.
The intended semantics are: don't warn on writes to the marked field outside of syncrhonization, but continue to warn on accesses to subfields.
Reviewed By: peterogithub
Differential Revision: D4406890
fbshipit-source-id: af8a114
Summary:
Currently, if we don't find `-d` or `-classes_out` on the command line then we
tell javac to redirect the compiled classes in some other directory, by default
the initial working directory. But we don't detect when these arguments are
hidden inside files (`foo` arguments on the javac command line) so the
heuristic was incomplete. Look inside these files to better tell whether we need
to make up an output directory or not.
Reviewed By: jeremydubreil
Differential Revision: D4397716
fbshipit-source-id: 30c5e4f
Summary: Deleting a couple of unused classes/Makefile cruft that was left around.
Reviewed By: jeremydubreil
Differential Revision: D4406007
fbshipit-source-id: 4b78494
Summary:
- Only generate one extra genrule for running infer. Remove all other java library rules currently being generated
- Generate infer genrule only if the `java_library` has `srcs`, otherwise there is nothing to analyze
- Use `SRCDIR` to avoid making a copy of the target sources as buck will just symlink them instead
- Added support for `android_library` rules as well
- Added support to generate both `infer` and `eradicate` genrules
Closes https://github.com/facebook/infer/pull/558
Reviewed By: sblackshear
Differential Revision: D4400365
Pulled By: jeremydubreil
fbshipit-source-id: 24750e2
Summary: This will be useful in upcoming changes to the thread-safety analysis as well.
Reviewed By: dkgi
Differential Revision: D4402146
fbshipit-source-id: c750127
Summary:
Sometimes we don't want to analyze but a message gets printed that there was
nothing to analyze and we exit with error, which is confusing.
Reviewed By: jberdine
Differential Revision: D4398120
fbshipit-source-id: 43ce3ab
Summary:
Add more debug output to be able to trace the calls to javac more easily
when --stats or --debug is passed to infer.
Reviewed By: sblackshear
Differential Revision: D4398100
fbshipit-source-id: 3012900
Summary:
This would fail before and works as expected now:
```
$ infer -- clang -c hello.c
$ cd infer-out/ && ln -s ../foo && cd ..
$ infer -- clang -c hello.c # crashes because it fails to delete infer-out/foo
```
Reviewed By: jberdine
Differential Revision: D4398763
fbshipit-source-id: 38465f8
Summary: Generalized the CppTrace into a Clang trace because we don't currently have separate checkers for Obj-C and Cpp. Happy to separate them later if there is a good reason
Reviewed By: akotulski
Differential Revision: D4394952
fbshipit-source-id: e288761
Summary:
Adding models that allow us to warn on unguarded accesses to subclasses of `Map`, but not on accesses of threadsafe containers like `ConcurrentMap`.
Lots more containers to model later, but stopping at `Map`s for now to make sure the approach looks ok.
Reviewed By: jvillard
Differential Revision: D4385306
fbshipit-source-id: d791eee
Summary:
One of the tests was failing without `make clean` because infer-out didn't get
deleted when rerunning the clang db test. This was because infer thinks it's in
`Analyze` mode when capturing clang db files.
Reviewed By: akotulski
Differential Revision: D4397731
fbshipit-source-id: 26f423a
Summary:
This error message is confusing when the user is not actually running
InferPrint, eg `infer foo`: `Load Error: file foo: arguments must be .specs
files`.
With this diff, we don't get any error for `infer foo`, which is not great
either and will need to be addressed (do we support all the python arguments in
OCaml now too and are able to turn on argument parsing errors in OCaml land?).
Reviewed By: jberdine
Differential Revision: D4397765
fbshipit-source-id: e7ca48f
Summary:
If we don't delete infer-out then it gets polluted with files from previous
versions of infer resulting in segfaults during `make test`.
Reviewed By: cristianoc
Differential Revision: D4397723
fbshipit-source-id: 1211d40
Summary:
Module CFrontend_utils is a container for two modules: Ast_utils and General_utils.
Instead of opening CFrontend_utils in several places, it is now split into two separate modules CAst_utils and CGeneral_utils, which are now accessed directly.
Reviewed By: jberdine
Differential Revision: D4392710
fbshipit-source-id: ea756a2
Summary:
Change Utils.filename_to_relative to return None in case the filename
is not under root, rather than returning the filename unchanged.
Reviewed By: akotulski
Differential Revision: D4391075
fbshipit-source-id: bf753af
Summary:
The cmake test removes the _build dirs, and the utf8_in_pwd test
rsyncs them.
Reviewed By: akotulski
Differential Revision: D4375554
fbshipit-source-id: 3fa088c
Summary: Need to upgrade in order to specify some taint properties on a more recent `WebView` API.
Reviewed By: cristianoc
Differential Revision: D4382590
fbshipit-source-id: 0925742
Summary:
This diff allows to use the linters written in DSL to check for bugs.
Now new checkers can be written directly in the DSL.
The diff also remove some weirdness and simplify the CTL semantics.
For example no need to unwrap a node when evaluating the IN operator.
Also no need to distinguish anymore between stmt and decl in the
semantics of EX and EF.
Moreover, the diff de-couple hard-coded checkers (eg checks on component kit)
from those checkers parsed in the .al files.
Reviewed By: martinoluca
Differential Revision: D4375207
fbshipit-source-id: 9ac2d47
Summary: These methods should only be called from other methods that also run on the UI thread, and they should not be starting new threads.
Reviewed By: peterogithub
Differential Revision: D4383133
fbshipit-source-id: 6cb2e40
Summary: The logic for filtering reports based on their buckets lives in InferPrint, so this code isn't doing anything.
Reviewed By: jvillard
Differential Revision: D4379966
fbshipit-source-id: 5a69304
Summary:
A domain should not definite its initial state, since distinct users of the domain may want to choose different initial values.
For example, one user might want to bind all of the formals to some special values, and one user might want the initial domain to be an empty map
This diff makes this distinction clear in the types by (a) requiring the initial state to be passed to the abstract interpreter and (b) lifting the requirement that abstract domains define `initial`.
Reviewed By: jberdine
Differential Revision: D4359629
fbshipit-source-id: cbcee28
Summary:
Force clients to specify the path relative to which relative paths
should be made absolute.
Reviewed By: akotulski
Differential Revision: D4370262
fbshipit-source-id: 36a2807
Summary:
Now that the toplevel driver's cwd is passed through realpath, the
dance to preserve symlinks is redundant.
Reviewed By: jeremydubreil
Differential Revision: D4371055
fbshipit-source-id: c8aebaf
Summary:
For example: `infer --print-logs --stats -- clang -c hello.c`.
The option is not on by default.
This forwards all the output to log files to stdout or stderr as appropriate.
The multiplexing is very crude and can be improved later if needed if
stdout/err is too garbled by concurrent partial writes.
Reviewed By: jberdine
Differential Revision: D4365996
fbshipit-source-id: 7f2ab98
Summary:
Remove the need for a dummy initialization of log files.
The fact that we were not setting log files in some cases doesn't seem to be
relevant so I killed it. I observed no difference in output on simple clang and
javac examples. It will be easy to restore a better version of it in the next
diff if needed.
Also fix an fd leak: when opening new log files, previous ones were not being
flushed and closed (except at exit).
Reviewed By: jberdine
Differential Revision: D4365992
fbshipit-source-id: 940bc16
Summary:
There is not much to redirect except for an uninformative line before proper
logging files are set up. This is from before the current logging system, which
has builtin support for logging into custom files.
Reviewed By: jberdine
Differential Revision: D4365988
fbshipit-source-id: 044290a
Summary:
Instead of opening new log files each time with non-deterministic names, keep
appending to the same log files. This only removes the randomized part of the
names in the files. In particular, it keeps the name prefixes for, eg, clang
source files.
Also changed most "<executable>/<executable>-out.log" to simply "<executable>/out.log".
Reviewed By: jberdine
Differential Revision: D4365983
fbshipit-source-id: 46792dc
Summary: This more easily allow to switch between the different modes for handeling dynamic dispatch
Reviewed By: sblackshear
Differential Revision: D4367556
fbshipit-source-id: 795d2c4
Summary: 957b243 removed the last use of `Exe_env.get_tenv ~create:true`
Reviewed By: jeremydubreil
Differential Revision: D4364521
fbshipit-source-id: 819efee
Summary: Use the lazy dynamic dispatch by default in prod for the Java analysis
Reviewed By: sblackshear
Differential Revision: D4356872
fbshipit-source-id: 491e92e
Summary: Adding the information that a procedure has been modelled as part of the attributes, during the translation, instead of getting this information from where is the summary loaded from. This is more consistent with the use of the attributes in other parts of the analysis, but is also useful in the context of the lazy dynamic dispatch algorithm where the procedures, including the models, are cloned and reanalyzed with more specialized parameters. The information about whether a procedure is a model must persist when cloning the procedures.
Reviewed By: sblackshear
Differential Revision: D4356892
fbshipit-source-id: 40ff5ca
Summary:
When you try to log an error on a procedure P and a summary for P doesn't exist, the error gets quietly dropped on the floor.
But we should fail loudly instead, because this should only happen in the case of a user error.
Got burned by this today; I was trying to log an error on the *caller* of `Integer.parseInt`, but was accidentally logging it to `Integer.parseInt` itself instead.
Since no summary for that method exists, my error wasn't appearing.
Reviewed By: jvillard, jeremydubreil
Differential Revision: D4355546
fbshipit-source-id: db2a0e6
Summary:
Without this it's not always obvious which test fails. It also makes it easier
to mass-patch test failures from the CI jobs to replace expected outputs with
actual outputs (eg, when debugging osx frontend tests from linux).
Reviewed By: jberdine
Differential Revision: D4352205
fbshipit-source-id: 8887d7b
Summary:
The two concepts are not negation of each other. The type environment created by the different frontends is not guaranteed to contain a full view of the type hierarchy. In this case, there can be holes preventing Infer to prove that `t <: t'` if the type definition between `t` and `t'` is missing. There are now two functions:
# `is_known_subtype` when the subtyping relation can be proven
# `is_known_not_subtype` when it can be proven that there is no subtyping relation between two types
This diff is intended to make no functional changes but to add functionality to detect cast error angelically, i.e. assuming that the program is probably fine where there is not enough information to prove the cast error.
Reviewed By: jberdine
Differential Revision: D4345803
fbshipit-source-id: 39b79bc
Summary:
There's a lot of boilerplate work to be done when adding a new kind of source.
This diff tries to reduce the boilerplate by making a functor do all the work.
The functor:
(1) adds a notion of "footprint kind" to the source
(2) packages the source with a call site
Reviewed By: jvillard
Differential Revision: D4349224
fbshipit-source-id: 5e1701a
Summary:
The specialization of the methods based on the type of the arguments should only be performed when the type is an object type. This should in theory be always the case according to the Java semantics but the previous version of the code was relying on Infer to be correct all the way down the the method call:
Before this diff, the analysis on examples like this:
String foo(Object object) {
object.toString();
}
String bar() {
int[] array = {1, 2, 3};
foo(array);
}
This is a legit code that Infer is getting wrong because Java objects are translated as C objects instead of objects containing a C-style object. There may be other issues like this so it is safer to filter out the types when performing the substitution.
Reviewed By: jberdine
Differential Revision: D4345760
fbshipit-source-id: 1c74593
Summary:
We currently can only model the return values of functions as sources.
In order to model inputs of endpoints as sources, we need the capability to treat the formals of certain functions as sources too.
This diff adds that capability by adding a function for getting the tainted sources to the source module, then using that info in the analysis.
Reviewed By: jeremydubreil
Differential Revision: D4314738
fbshipit-source-id: dd7d423
Summary: Different analyses need different preanalyses to run. It doesn't make sense for all of the pre-analyses to be bundled together into one package.
Reviewed By: jvillard
Differential Revision: D4348243
fbshipit-source-id: 46a8ebd
Summary:
Adding #infer-capture-all et al. by hand is annoying and I always forget to do
it. Let infer figure that out.
Reviewed By: dulmarod
Differential Revision: D4339799
fbshipit-source-id: 55e52dc
Summary:
Seems like we cannot run 2 instances of Buck in parallel even when one uses
buck-out/ and the other buck-out/foo/.
Reviewed By: sblackshear
Differential Revision: D4347090
fbshipit-source-id: 7e65d2f
Summary: reactive capture spawns clang from within analysis. Time it takes to compile source code shouldn't be counted towards timout
Reviewed By: jvillard, cristianoc
Differential Revision: D4334037
fbshipit-source-id: 64f417d
Summary: Access to std::vector shouldn't be treated as SKIP. Implementation is simple enough to use one from std:: headers
Reviewed By: jvillard
Differential Revision: D4339577
fbshipit-source-id: d1fbbee
Summary: pattern matching we had before allowed many unintended functions to pass (such as `max_element`). Make matching much more strict
Reviewed By: jvillard
Differential Revision: D4313428
fbshipit-source-id: 189c522
Summary:
Previously, summaries worked by flattening the access tree representing the post of the procedure into (in essence) a list of functions from caller input traces to callee output traces.
This is inefficient in many ways, and is also much more complex than just using the original access tree as the summary.
One big inefficiency of the old way is this: calling `Trace.append` is slow, and we want to do it as few times as possible.
Under the old summary system, we would do it at most once for each "function" in the summary list.
Now, we'll do it at most once for each node in the access tree summary.
This will be a smaller number of calls, since each node can summarize many input/output relationships.
Reviewed By: jeremydubreil
Differential Revision: D4271579
fbshipit-source-id: 34e407a
Summary:
This commit avoids using the join operator for the widening
of the Map functor in ```abstractDomain.ml```
and ensures termination when ```ValueDomain``` is infinite
by using ```ValueDomain.widen```.
Closes https://github.com/facebook/infer/pull/535
Differential Revision: D4319797
Pulled By: sblackshear
fbshipit-source-id: 16f15e4
Summary: Don't warn on NotThreadSafe class, particularly when super is ThreadSafe
Reviewed By: sblackshear
Differential Revision: D4334417
fbshipit-source-id: 0df3b9d
Summary:
Most of the time code outside of project root is not interesting to the user - it's either system library or infer C++ model. Skip all of them.
Previous logic was doing something similar, but in more selective way.
I also need this change for D4313428
Reviewed By: jvillard
Differential Revision: D4339298
fbshipit-source-id: c7b5544
Summary:
This will simplify the InferPrint logic of checking what should/should-not be reported.
I will remove the issue names in Localise in a next diff.
Reviewed By: ddino
Differential Revision: D4334327
fbshipit-source-id: ebcfd6c
Summary:
This diff parses the build command args to directly handle the -version
option passed to java and javac, to make the integration with buck more
robust by ensuring that the version and no additional debug logging is
generated for `infer --debug -- javac -version`.
Reviewed By: jeremydubreil
Differential Revision: D4158011
fbshipit-source-id: e7d6b4d
Summary:
SuppressWarnings annotations are hardly used and add considerable
complexity due to requiring recompilation with an annotation processor.
Reviewed By: jvillard
Differential Revision: D4312193
fbshipit-source-id: c4fc07e
Summary:
This option is only useful if you want to treat casts angelically, but nothing else.
Since angelic is on by default and this option is off by default, it's basically useless.
Reviewed By: jeremydubreil
Differential Revision: D4334030
fbshipit-source-id: 3c0b0ed
Summary:
Most of the diff adds a way to run an existing test with different infer
options.
Also, do not run the Python script when capturing "analyze".
fixes https://github.com/facebook/infer/issues/518
Reviewed By: jberdine
Differential Revision: D4333762
fbshipit-source-id: 642acff
Summary:
Change the domain of SIOF to be based on sets of pvar * location instead of
single pvars. This allows us to group several accesses together. However, we
still get different trace elems for different instructions in a proc. We do two
things to get around this limitation and get a trace where all accesses within
the same proc are grouped together, instead of one trace for each access:
1. A post-processing phase at the end of the analysis of one proc collects all
the globals directly accessed in the proc into a single trace elem.
2. When creating the error trace, unpack this set into several trace elements
to see each access (at its correct location) separately in the trace.
This is a bit hacky and another way would be to extend the API of traces to
handle in-procedure accesses natively instead of shoe-horning them. However
since SIOF is the only one to use this, it introduces less boilerplate to do it
that way for now.
Also, a few .mlis for good measure.
Reviewed By: sblackshear
Differential Revision: D4299070
fbshipit-source-id: 3bbb5c2
Summary: These direct tests were still mostly relying on PHONY targets.
Reviewed By: jberdine
Differential Revision: D4326469
fbshipit-source-id: 37b2d0a
Summary:
Turns out that swapping stdout and stderr using a temporary fd 3 was screwing
up with make's jobserver, who also uses fd 3!
Also, infer is partly to blame as it also calls `make`. Unsetting `MAKEFLAGS`
in infer tells `make` that the way infer calls `make` is independent from
parent `make` invocations.
Also, simplify the rules for direct tests and build system tests.
Reviewed By: jberdine
Differential Revision: D4328979
fbshipit-source-id: 96818e8
Summary:
The list of argument specs is a global ref inside `CommandLineOptions`, which
need to be reset to the empty list every time `parse` is called. Otherwise, we
get duplicated sections:
```
$ infer --help
Infer version v0.9.4-84d61cb
Copyright 2009 - present Facebook. All Rights Reserved.
Toplevel options
--inferconfig-home <dir> Path to the .inferconfig file
--project-root | -pr <dir> Specify the root directory of the project (default: /home/jul/infer)
Analysis (backend) options
Clang frontend options
Java frontend options
Toplevel options
[... the rest of the options -- without --inferconfig-home or --project-root,
with all the section headers again ...]
```
Reviewed By: jberdine
Differential Revision: D4333448
fbshipit-source-id: f91ea66
Summary:
The javac -classes_out option is used to set the results directory for
the buck build system integration.
Reviewed By: jeremydubreil
Differential Revision: D4162907
fbshipit-source-id: 75d0a6d
Summary:
We don't need to have separate `--` integration for compilation database. Instead use:
infer --compilation-db-files db.json <other_infer_options> // no -- anywhere!
Reviewed By: jberdine
Differential Revision: D4327570
fbshipit-source-id: caf0dc9
Summary:
This change is to support the development of CTL's DSL, where issues can be specified directly from the language, in the form of strings.
Severity is specified locally to the place where the check is defined
Reviewed By: ddino
Differential Revision: D4326594
fbshipit-source-id: 7b146ac
Summary:
If these collections don't encapsulate their state properly, there are bigger problems than thread safety issues :).
Plus, these warnings are less-than-actionable for non-Guava maintainers.
Reviewed By: peterogithub
Differential Revision: D4324277
fbshipit-source-id: cacfbf0
Summary:
Maintain an "ownership" set of access paths that hold locally allocated memory that has not escaped.
This memory is owned by the current procedure, so modifying it outside of synchronization is safe.
If an owned access path does escape to another procedure, we remove it from the ownership set.
Reviewed By: peterogithub
Differential Revision: D4320034
fbshipit-source-id: 64f9169
Sam Blackshear
Jules Villard
Jeremy Dubreil
Cristiano Calcagno
Andrzej Kotulski
Gautam Korlam
Josh Berdine
Dino Distefano
Peter O'Hearn
Ryan Rhee
Kihong Heo
Dulma Churchill
Martino Luca