Summary:
- failwith police: no more `failwith`. Instead, use `Logging.die`.
- Introduce the `SimpleLogging` module for dying from modules where `Logging`
cannot be used (usually because that would create a cyclic dependency).
- always log backtraces, and show backtraces on the console except for usage errors
- Also point out in the log file where the toplevel executions of infer happen
Reviewed By: jeremydubreil
Differential Revision: D5726362
fbshipit-source-id: d7a01fc
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:
Change the API of `Logging` wrt to writing to files and to the console (see
changes in logging.mli).
Write only to one log file: infer-out/log. Prefix each line with the kind of
warning and the PID of the process emitting it. Writing with `O_APPEND` is
atomic so the file should not get garbled by concurrent writes. To get the
output of a single process, find out which one interests you by looking at
infer-out/log, then `grep ^[<PID>] infer-out/log`.
Introduce 3 log levels for debug output and command-line options to set them
for various categories individually.
Change tons of `"\n"` to `"@\n"` so the `Format` module is aware of newlines
without us having to look through every character of every logged string for
`\n` characters.
Reviewed By: mbouaziz
Differential Revision: D5165317
fbshipit-source-id: 93c922f
Summary:
Try and enforce the following rules:
- stderr is for updating the user about progress or errors
- Introduce Logging.progress that outputs to stderr, but honours --quiet
- Logging.stderr is as before
- Logging.out now prints to stderr (or to log files as before if set up) and
not stdout. If some information should go on stdout then the user should be
able to rely on it (ie, it's not just some progress message). For now only
the summary of the errors is printed on stdout by default.
- Logging.err* functions are gone. If the error is user-visible, it should be
Logging.stderr, or `failwith`. If not, go to the same log file as other
output, which personally I find much more convenient than having to dig through
2 log files every time I'm looking for some output.
Reviewed By: jberdine
Differential Revision: D5095720
fbshipit-source-id: 68999c9
Summary: The procedure description is available when initializing the analysis summary, so it is simpler to use it than to rely on loading the data from the attributes.
Reviewed By: jvillard
Differential Revision: D5027049
fbshipit-source-id: 92cac5c
Summary: Stops Quandary errors from getting dropped on the floor when it runs alongside the other checkers.
Reviewed By: jeremydubreil
Differential Revision: D5010801
fbshipit-source-id: 2847f61
Summary: This actually fixes issues of infinite loop as the function `Specs.set_status` was saving the `Active` status in the summary from the specs table which could differ from the summary passed as argument to the checkers
Reviewed By: sblackshear
Differential Revision: D5025923
fbshipit-source-id: c23a6f9
Summary:
Ran the build with -w,-32 , delete code, repeat, until a fixpoint of no more warnings is reach.
Unfortunately we cannot fatal on w32 because ppx_compare can generate dead code (eg `compare_t` and only `compare` is used).
Reviewed By: mbouaziz
Differential Revision: D4945800
fbshipit-source-id: c95afb6
Summary:
`Location.dummy` is often used in a situation where we know the source file, but not the line/column.
Use `Location.none` for this instead.
Reviewed By: jeremydubreil
Differential Revision: D4991232
fbshipit-source-id: fc361a4
Summary: Now, all the summary access functions in the module `Specs` are of the form: `Specs.summary -> 'a`. This is a step toward making the analysis flow stateless.
Reviewed By: sblackshear
Differential Revision: D4976126
fbshipit-source-id: 28b6da1
Summary: The analysis logic was split between the treatment of the instructions and the definition of the domain, making the code more complicated that it should. This diff moves more of the logic into the domain definition and change to variable names to more descriptive ones
Reviewed By: sblackshear
Differential Revision: D4936414
fbshipit-source-id: ff59de7
Summary:
It is definitely useful to collect information about how long the analysis of every procedure takes. It allows to detect and focus on outliers when trying to improve performance. However, this kind of information could be collected using a standard logging mechanism and does not need to be stored within the analysis artifacts.
I intend to add some form of similar logging in the context of #16348004 once we can get every analysis procedure analyzed through the `Ondemand` module. In this case, it would be easy to have a single place to log how does the analysis of a procedure take.
Reviewed By: jberdine
Differential Revision: D4636755
fbshipit-source-id: 01f3bca
Summary:
Changes every checker to take a summary as parameter and return the updated summary to the next checker. Since several operations, like `Reporting.log_*` are modifying the summary in memory by loading them from the in-memory cache of summaries, we currently need to rely on `Specs.get_summary_unsafe` to return the updated version of the summary.
This diff allows to change the API of `Reporting` to take a summary as input and progressively remove all the calls `Specs.get_summary_unsafe` independently from adding the possibility to run several checkers at the same time. The final objective to have every checker just passing around the summary of the procedure being analyzed, and having the in-memory cache only use to store the summaries of the callees.
Reviewed By: sblackshear
Differential Revision: D4649252
fbshipit-source-id: 98f7ca7
Summary:
Add a new command-line option `--per-procedure-parallelism`, to change the granularity of parallelism of the analysis from file to procedure.
This is intended for `--reactive` mode where e.g. a single file is changed and the analysis currently uses just one core.
When the option is used, the Makefile mechanism is replaced by using forking instead.
The parent process does as little allocation as possible, to avoid taxing the kernel.
Caveats:
- Not active in Java, (issues with camlzip).
- Not active in checkers, yet.
Example use:
```
infer --reactive --changed-files-index index.txt --per-procedure-parallelism -- analyze
```
Reviewed By: jberdine
Differential Revision: D4634884
fbshipit-source-id: e358c18
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:
For writes of serialized data, write directly to the file instead of using a temporary one, and lock the file before writing.
Also added an `update` function to the API, to update an existing version of the data file instead of just replacing it with a new value.
Reviewed By: jberdine
Differential Revision: D4619958
fbshipit-source-id: 9642408
Summary: This seems to only be used for stats and for the concept of call rank that is not used right now
Reviewed By: cristianoc
Differential Revision: D4624681
fbshipit-source-id: 7406496
Summary:
With the ondemand analysis framework, the concept of timestamp was only being use to check if a procedure has already been analyzed. There was already a concept of "active" procedure for the procedure that were already being analyzed. This revision removes the concept of timestamp and merge it with the concept of analysis status.
This can be simplified further once the analysis always goes through `Ondemand.analyze`.
Reviewed By: cristianoc
Differential Revision: D4610371
fbshipit-source-id: 0fc516b
Summary: The function `Checkers.ST.store_summary` was only used in one place. This revision moves the functionality to the only place where this function was used, except the part swallowing `Sys_error` which may have the bad side-effect of making issues like race-conditions silent.
Reviewed By: cristianoc
Differential Revision: D4608790
fbshipit-source-id: b84c8ce
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: This is required to maintain a set of owned access paths in a subsequent diff.
Reviewed By: jberdine
Differential Revision: D4318859
fbshipit-source-id: bd1a9fa
Summary:
Use In_channel and Out_channel operations instead of those in Pervasives. Don't
use physical equality on values that aren't heap-allocated since it doesn't help
the compiler generate faster code and the semantics is unspecified. Also use
phys_equal for physical equality.
Reviewed By: sblackshear
Differential Revision: D4232459
fbshipit-source-id: 36fcfa8
Summary:
Utils contains definitions intended to be in the global namespace for
all of the infer code-base, as well as pretty-printing functions, and
assorted utility functions mostly for dealing with files and processes.
This diff changes the module opened into the global namespace to
IStd (Std conflict with extlib), and moves the pretty-printing
definitions from Utils to Pp.
Reviewed By: jvillard
Differential Revision: D4232457
fbshipit-source-id: 1e070e0
Summary: Noticed this when I was writing the documentation for the abstract interpretation framework and was curious about why `Ondemand.analyze_proc` needs the type environment. It turns out that the type environment is only used to transform/normalize Infer bi-abduction specs before storing them to disk, but this can be done elsewhere. Doing this normalization elsewhere simplifies the on-demand API, which is a win for all of its clients.
Reviewed By: cristianoc
Differential Revision: D4241279
fbshipit-source-id: 957b243
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: Refactoring to make thread safety checker interpocedural. This should not change funcitonality, and will only set things up for making the interprocedural part more serious.
Reviewed By: sblackshear
Differential Revision: D4124316
fbshipit-source-id: 6721953
Jeremy Dubreil
Jules Villard
Josh Berdine
Andrzej Kotulski
Sam Blackshear
Mehdi Bouaziz
Cristiano Calcagno
Kihong Heo
Peter O'Hearn