Summary: They actually don't take very much time at all but it's good to know that they don't.
Reviewed By: mbouaziz
Differential Revision: D9832277
fbshipit-source-id: 7486fb40c
Summary:
This adds an option `--trace-events` that generates a Chrome trace event[1] to
quickly visualise the performance of infer.
Reviewed By: mbouaziz
Differential Revision: D9831599
fbshipit-source-id: 96a33c627
Summary:
Previously we wouldn't flush the formatter hence the error message would
generally not make it to the log file. Add the backtrace too, although only the
first few lines appear for some reason...
Reviewed By: ngorogiannis
Differential Revision: D9915499
fbshipit-source-id: 43cd9e36e
Summary:
First version of differential for costs, based on polynomial's degree's variation. The rule is very simple:
For a given polynomial that is available before and after a diff, `if degree_before > degree_after`, then the issue becomes `fixed`. Instead, `if degree_before < degree_after`, then the issue becomes `introduced`.
Reviewed By: ezgicicek
Differential Revision: D9810150
fbshipit-source-id: d08285926
Summary: This feature is not currently used and crashes when enabled.
Reviewed By: ngorogiannis
Differential Revision: D9805110
fbshipit-source-id: db405c79e
Summary:
For some unexplained reason, some of the functions registered in the Epilogues would sometimes be executed several times. I could not figure out why.
This diff fixes that, but also has more explainable benefits:
- Do not run epilogues registered in the parent in the children. Previously it
would do so, but probably only if the children registered some epilogue given
that `at_exit` must be called again once on the child (but the value of the ref
in `Pervasives` would not have been reset).
- Unified behaviour for early and late epilogues given that we now handle both of these directly
We already have all the control needed to run epilogues when needed: we know
when infer exits, and we know when children processes exit.
Reviewed By: mbouaziz
Differential Revision: D9752046
fbshipit-source-id: 13af40081
Summary:
Turn off by default until mature enough.
Also rename the dev-strict-mode test dir to highlight the dev part.
Reviewed By: mbouaziz
Differential Revision: D9775571
fbshipit-source-id: c3a41bbdf
Summary:
First step in writing an analyzer that is meant to run only on Android core library implementation.
This will, when finished, compute the library entrypoints that may lead to a strict mode violation.
The normal analyzer will use those to statically flag strict mode violations in app code.
Strict Mode is an Android debug mode, where doing certain things (like disk read/write or network activity) on the UI thread will raise an exception. We want to statically catch these, as well as indirect versions (the UI thread takes a lock and another thread holding that lock calls a method that would be a strict mode violation).
Reviewed By: mbouaziz
Differential Revision: D9634407
fbshipit-source-id: c30bcedb3
Summary:
- Let's call `IssueType.from_string` once only
- Use properly defined issue types for builtin linters
Reviewed By: martinoluca
Differential Revision: D9654105
fbshipit-source-id: 947b50a51
Summary:
Useful tips and tricks to debug infer's OCaml code. Also emit a developer
warning when the database is not initialised (since it's only expected to
happen when running infer from the toplevel).
Reviewed By: mbouaziz
Differential Revision: D9295782
fbshipit-source-id: 09b7b9a02
Summary:
To keep up with the times. Changes consist of new features and moving modules
around so shouldn't change anything on our side.
Depends on D9239803
The controller you requested could not be found.: facebook-clang-plugins
Reviewed By: da319
Differential Revision: D9239817
fbshipit-source-id: d02a2076a
Summary:
Because of the custom formatting we do on top of `Cmdliner.Manpage` in
`CommandLineOption`, the long `$(b,strings inside bold block)` would sometimes
end up split across several lines and then `Cmdliner` complains about the line
ending before having seen the closing parenthesis `)`.
Instead of allowing these long strings, remove then from the help message as
they don't seem very useful to me. Replace them with just a mention of
`--test-determinator` so all the options related to Test Determinator are easy
to look up.
Also change the relevant options from `CLOpt.mk_string` to `CLOpt.mk_path`
because they look like they are supposed to be paths.
Reviewed By: ddino
Differential Revision: D9133505
fbshipit-source-id: d82acf5bf
Summary:
Print the following for each source file to analyse in non-interactive mode:
```
path/to/source_file.c starting
[...]
path/to/source_file.c DONE in <time>
```
This should help diagnose when infer is stuck. It also logs this information to
the log file regardless of the form of the progress bar.
Also add a `--progress-bar-style` option to allow the user to force a
particular rendering: plain (as above), multiline (The Glorious One), or auto
(selection depends on whether infer is connected to a TTY on stdin *and*
stderr).
Reviewed By: mbouaziz
Differential Revision: D9120509
fbshipit-source-id: 4b43b7464
Summary:
It adds relational domains to Inferbo: octagon of Apron and polyhedra of Elina.
- Each Mem domain value includes one relational value containing relations among symbols. The relational values are modified by the `Prune` and `Store` commands.
- Each abstract value includes three symbols, which represent integer value, array offset, and array size of an abstract value.
The relational domain is deactivated by default. Use the `--bo-relational-domain {oct, poly}` option for the activation, though Inferbo with the relational domains does not work at this point because some modifications of Apron and Elina we made has not been applied to their opam repositories yet.
Reviewed By: jvillard
Differential Revision: D8874102
fbshipit-source-id: 08e5883cb
Summary:
`ANSITerminal` flushes after almost every operation. As a result, there is a
lot of flicker in the task bar. Going through `Format` instead reduces the
flicker.
Also erase end-of-lines when outputting logging stuff to the console. This makes sure the output is not garbled with stuff from the task bar.
Reviewed By: ngorogiannis
Differential Revision: D8931294
fbshipit-source-id: e89c87f84
Summary: This integration rolls out its own parallelisation using `Parmap` and its own error handling. Make it use `Tasks` instead.
Reviewed By: mbouaziz
Differential Revision: D8807109
fbshipit-source-id: ac09b3791
Summary:
It adds relational domains to Inferbo: octagon of Apron and polyhedra of Elina.
- Each `Mem` domain value includes one relational value containing relations among *symbols*. The relational values are modified by the `Prune` and `Store` commands.
- Each abstract value includes three *symbols*, which represent integer value, array offset, and array size of an abstract value.
The relational domain is deactivated by default, so this diff should not make any differences in CI.
Use `--bo-relational-domain {oct, poly}` for the activation, though Inferbo with the relational domains does not work at this point because some modifications of Apron and Elina we made has not been applied to their opam repositories yet.
Reviewed By: mbouaziz, jvillard
Differential Revision: D8478542
fbshipit-source-id: 510ff53
Summary:
When `--reanalyze` is passed, mark the summaries of procedures matching
`--procedures-filter` as needing to be analysed before running the analysis.
This allows one to, for instance, re-run the analysis in debug mode on only
some files or procedures. However, this won't work for the Java Buck
integration since the summaries are hidden away in buck-out.
Reviewed By: mbouaziz
Differential Revision: D8783668
fbshipit-source-id: 9032d83
Summary:
This allows to deduplicate some code related to walking the rows of the results
of a SQLite query. Give more meaningful names to the API while I'm at it.
Reviewed By: mbouaziz
Differential Revision: D8783332
fbshipit-source-id: 4aa6613
Summary: All the rows were wrapped in `Some` but that is not needed anywhere.
Reviewed By: mbouaziz
Differential Revision: D8783310
fbshipit-source-id: b020af3
Summary: Some values in Config.mli were in the wrong section. Also, use ocamldoc formatting for sections.
Reviewed By: mbouaziz
Differential Revision: D8783244
fbshipit-source-id: f9a0729
Summary:
Filtering on the SQLite side was done to be more efficient, but these are debug
options so it should be fine for them to be not very optimised.
Filtering on the OCaml side will allow us to re-use these filtering options for
other purposes, such as re-analysing certain procedures only.
Reviewed By: mbouaziz
Differential Revision: D8767691
fbshipit-source-id: e232660
Summary:
The captured/ directory is not guaranteed to exist when the capture was run without debug mode, but the analysis assumes it will be. So, this crashes infer:
```
infer -- clang -c examples/hello.c
infer -g
```
There's no need for `DB.Results_dir.init` to create infer-out and infer-out/specs/ since this is now done in `ResultsDir`.
Reviewed By: jeremydubreil
Differential Revision: D8732739
fbshipit-source-id: aaac902
Summary: Otherwise the dead code checker sometimes crashes with a not-totally-related error.
Reviewed By: mbouaziz
Differential Revision: D8732546
fbshipit-source-id: 65caabd
Summary: This prevents the task bar from scrolling the terminal in case the lines are not wide enough. Instead it will truncate the display to the terminal size. Also display only the most useful info when there is not much room.
Reviewed By: jeremydubreil
Differential Revision: D8590580
fbshipit-source-id: e12d5c9
Summary:
Previously we would block indefinitely waiting for that child to send us an
update. Now errors in the child are caught and the main process dies, taking
everyone down with it.
When a child dies, it sends a "Crash" message to the parent, unless it died
receiving a signal (like a segmentation fault, or an external signal). In that
case, the OCaml runtime won't get a chance to notice its death and send the
"Crash" message. Thus, always check if some child has died from under us as
well.
Reviewed By: mbouaziz
Differential Revision: D8577095
fbshipit-source-id: 519992b
Summary:
Replace the previous outputting of "." and "F" with an actual progress bar and
a multiline display of what procedure each process is currently busy analysing.
Observe:
```lang=text
Found 19 source files to analyze in /home/jul/code/openssl-1.1.0d/infer-out
7/19 [######################......................................] 36%
⊢ [ 1.14s] crypto/mem.c: CRYPTO_malloc
⊢ [ 1.68s] crypto/o_time.c: julian_adj
⊢ [ 0.50s] crypto/mem.c: CRYPTO_zalloc
⊢ [ 1.80s] crypto/o_str.c: OPENSSL_strlcpy
```
This works by setting up a worker pool (as before) that waits to receive jobs
(not as before: we used to fork for each new job). Unix pipes are used for
communication.
The new worker pool can be used to experiment with other concurrency models,
such as reviving per-procedure-parallelism, or making sure each procedure is
analysed only once.
Perf tests indicate that this version is no slower than the previous one,
either on laptops or devserver: about 3% worse user time but ~40% better system time.
This new version forks <jobs> processes whereas the previous version would
fork `O(number of source files)` times.
`infer -j 1` shows a progress bar that doesn't update timing info (because it
would need a second process to do that).
Reviewed By: mbouaziz
Differential Revision: D8517507
fbshipit-source-id: c8ca104
Summary: This makes more sense and avoids printing a pointless backtrace. Give the user some advice while we're at it.
Reviewed By: mbouaziz
Differential Revision: D8442711
fbshipit-source-id: 65a8939
Summary: It's been deprecated for a while now. Use `infer analyze` instead.
Reviewed By: dulmarod
Differential Revision: D8442682
fbshipit-source-id: 0b8c590
Summary:
`make doc` will use `jbuilder` (which in turn uses `odoc`) to generate the
documentation for infer's modules. This is useful to browse the APIs of infer
and gives a more discoverable place to host more general documentation about
infer's internals.
Besides the actual plumbing necessary to generate the docs, this diff also
- Moves the various infer/src/*/README.md to index.mld files that make it to the generated docs
- Fixes some doc comments that would anger `ocamldoc`
Closes#435
Reviewed By: mbouaziz
Differential Revision: D8314572
fbshipit-source-id: 4a5c70e
Summary:
It's useful to test that the bucket a given error is classified as doesn't
change over time without notice.
This records the bucket for *all* the tests, even though some never produce a
bucket. This is to be on the safe size instead of risking to forget adding the
bucket information when the test changes, or when copy/pasting from a test that
doesn't have buckets to one that does.
The implementation is pretty crude: it greps the beginning of the qualifier
string for a `[bucket]`.
Reviewed By: mbouaziz
Differential Revision: D8236393
fbshipit-source-id: b3b1eb9
Summary:
Change the license of the source code from BSD + PATENTS to MIT.
Change `checkCopyright` to reflect the new license and learn some new file
types.
Generated with:
```
git grep BSD | xargs -n 1 ./scripts/checkCopyright -i
```
Reviewed By: jeremydubreil, mbouaziz, jberdine
Differential Revision: D8071249
fbshipit-source-id: 97ca23a
Summary:
Moving away from C++ include-based models means that we cannot reliably detect
anymore whether a file includes <iostream> or not. In order not to be too
spammy, let's always assume standard streams are initialized for now when the
include models are off.
Recent versions of libstdc++ make these models redundant so there is hope that in a
bright future the analysis of std streams initialisation will work correctly without infer
having to have its own models anyway.
Reviewed By: mbouaziz
Differential Revision: D8043467
fbshipit-source-id: d118043
Summary: Prevent the analysis to default to absolute paths which would invalidate the cache.
Reviewed By: mbouaziz
Differential Revision: D6997490
fbshipit-source-id: 3c17658
Summary:
The reported location was always the start of the enclosing procedure, which is wrong in many ways.
A nice side-effect is that some code can then be eliminated and Ondemand.analyze used, avoiding getting the procdescs in the process.
Reviewed By: jeremydubreil
Differential Revision: D8056306
fbshipit-source-id: 67c2c8d
Summary:
Labels inside switch statements were causing havoc (see test), and the translation of switch statements in general could be improved to handle more cases.
It turns out that `case` (and `default`) statements are more or less fancy labels into the code. In other words, if you erase all the `case XXX:` and `default:` strings in the `switch` statement you get the real structure of the program, and `switch` just jumps straight to the first `case` directives (and to the second if the first one is not satisfied, etc. until all `case`/`default` have been considered).
This suggests an alternative implementation: translate the body of the `switch` and simply record the list of switch cases inside that body, along with where they point to. Then post-process this list to construct the control flow of the `switch`, which points into the control-flow of the `body`. In order not to modify every function in `CTrans` to propagate the current list of cases, I created an ugly `ref` inside `SwitchCase` instead (but it cannot be directly accessed and it's guaranteed to be well-parenthesised wrt nested switches by the `SwitchCase` API so it's not too bad).
[unrelated] Also make translation failures output more information about what exactly in the source code is causing the crash, and the ancestors in the AST that lead to the crash site.
Reviewed By: martinoluca
Differential Revision: D8011046
fbshipit-source-id: 8455090
Summary: When passing `--genrule-mode` option, Infer will remove the logs and the other kind of data that are not compatible with the Buck distributed cache.
Reviewed By: mbouaziz
Differential Revision: D7943346
fbshipit-source-id: 4e7ca4d
Summary: It seems that we don't need to rely on `make` anymore as the internal process manager is working fine on Buck Java projects.
Reviewed By: jvillard
Differential Revision: D7903639
fbshipit-source-id: 9b32f05
Summary:
This is an attempt to make things more consistent, and maybe save some work
from the `Format` module in case flambda doesn't have our backs.
Reviewed By: jberdine
Differential Revision: D7775496
fbshipit-source-id: 59a6314
Summary: Make errors stand out with colours. Also improve error messages around save states.
Reviewed By: mbouaziz
Differential Revision: D7928794
fbshipit-source-id: c81cfe2
Summary:
Make the starvation checker enabled by default.
Add a deadlock issue type, distinct to starvation, which will be kept for UI thread starvation.
Add checks so that checker will do nothing on non-Java code.
Reviewed By: mbouaziz, ddino
Differential Revision: D7908381
fbshipit-source-id: 889f373
Summary: Historically, this option was only used to parallelize the biabduction analysis, which is now run using the checkers framework.
Reviewed By: jvillard
Differential Revision: D7895118
fbshipit-source-id: 2a54bca
Summary:
One source of non-determinism is racing on procedure summaries when reporting. In particular, the summary of a method may be computed and stored by one thread, but another may be trying to report on it (eg, in cluster checkers).
One solution (at least until everything is in sqlite) is to have separate files just for the reports, a la linters. This diff improves the interface of LintIssues and generalises it ahead of using it in other analysers.
Reviewed By: jeremydubreil
Differential Revision: D7859973
fbshipit-source-id: 8672d3b
Summary:
Add warning 60 (unused module) to the list of fatal warnings. Whitelisting
modules at toplevel is tricky (see inline comments) but doable.
Reviewed By: mbouaziz
Differential Revision: D7790073
fbshipit-source-id: 6f591c4
Summary:
Add a `--source-files` option to `infer explore` to print information about the source files captured by infer.
More precisely, `infer explore --source-files` will print each row of the "source_files" table in the results database.
Option `--source-files-filter` can be used to filter output to file names matching an SQLite "LIKE" pattern.
Flags `--source-files-cfgs`, `--source-files-type-environment`, `--source-files-procedure-names` and `--source-files-freshly-captured` control which columns to print.
The printers for some existing types have been tweaked to improve the output.
Reviewed By: jvillard
Differential Revision: D7735535
fbshipit-source-id: 572389a
Summary: Random edits made while reading ZipLib.ml. They're really not interesting, sorry...
Reviewed By: sblackshear
Differential Revision: D7686159
fbshipit-source-id: 19ef1ce
Summary:
Given a difference between two files, return the relevant lines in the new file; a line is relevant when a change took place in it, or nearby. To generate a valid input for this parser, use unix-diff command with the following formatter arguments:
```
diff --unchanged-line-format="U" --old-line-format="O" --new-line-format="N" File1 File2
```
Reviewed By: ezgicicek
Differential Revision: D7385267
fbshipit-source-id: 0cc3143
Summary:
Upgrade ocamlformat, and base which needs to be done in sync in order to build
ocamlformat, and the other deps can come for the ride.
Reviewed By: jvillard
Differential Revision: D7663537
fbshipit-source-id: 3e90970
Summary:
We were using the "filename" as the key because it's (kinda) unique *and* human
readable, but with the `infer explore --procedures` interface we don't really
need the human readable part anymore, so we can just use the OCaml marshalling
of the pname as the key. The human-readable version (sans unique-fying hash) is
now another column in the table, used to match procedure names in
`--procedures-filter`.
Reviewed By: sblackshear
Differential Revision: D7639158
fbshipit-source-id: e714605
Summary:
Add a `--procedures` option to `infer explore` to print information about the
procedures captured by infer. More precisely, `infer explore --procedures` will
print each row of the "procedures" table in the results database. A new
`--procedures-filter` controls which procedures to print information about, and
there is one flag per column in the db too to print more or less options about
each procedure (in particular, we can now print attributes), with some defaults.
Reviewed By: sblackshear
Differential Revision: D7639062
fbshipit-source-id: 034a2b8
Summary:
It feels risky to me to swallow the `Sys_error` here since this could hide deeper issues with the deserialization of summaries.
This is only used with the Buck Integration for Java when extracting the summaries from the jar files.
Reviewed By: sblackshear
Differential Revision: D7490123
fbshipit-source-id: 68cd556
Summary:
This is unused, but the logic for keeping its value up to date was still alive
and kicking.
I don't know that making use of this flag would be easy: we could just use it
in `Ondemand.should_analyze`, but it would be unsound because a procedure might
need to be re-analysed becauese its dependencies have changed. Since there's
not code to deal with that currently I think it's best to remove it and
re-introduce it when we have some idea how to use it.
Reviewed By: sblackshear, jeremydubreil
Differential Revision: D7444179
fbshipit-source-id: 99a1ec5
Summary:
Utility function that's basically `Logging.progress` but with a more obvious
name for debugging.
The `[@deprecated ...]` ensures no uses gets landed, and the `[@warning "-32"]` ensures that it's not a compile error that there are no uses of this function.
Inspired by #716.
Reviewed By: mbouaziz
Differential Revision: D7443224
fbshipit-source-id: e94798f
Jules Villard
Martin Trojer
Nikos Gorogiannis
Martino Luca
Jeremy Dubreil
Julian Sutherland
Mehdi Bouaziz
Ezgi Çiçek
Josh Berdine
Sungkeun Cho
Dulma Churchill
Dino Distefano
Sam Blackshear
Frédéric Bour