Summary:
The model for `getcwd` assumes the first argument should be non-null when in fact a NULL pointer is legitimate and results in allocation:
> As an extension to the POSIX.1-2001 standard, glibc's getcwd() allocates the buffer dynamically using mal‐
> loc(3) if buf is NULL. In this case, the allocated buffer has the length size unless size is zero, when buf
> is allocated as big as necessary. The caller should free(3) the returned buffer.
I suggest this glibc extension be used for the getcwd model to reduce false positives.
Pull Request resolved: https://github.com/facebook/infer/pull/925
Reviewed By: mbouaziz
Differential Revision: D9830450
Pulled By: jvillard
fbshipit-source-id: 95c4862b1
Summary:
Now we see which file/procedure/instruction is responsible for a crash in the
backend. Biabduction and eradicate not supported yet for the instruction-level
debug.
Reviewed By: mbouaziz, da319
Differential Revision: D9915666
fbshipit-source-id: 279472305
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: This fixes a flaky test where some issues would disappear and re-appear.
Reviewed By: da319
Differential Revision: D9027686
fbshipit-source-id: 5ac314096
Summary: Always read the attributes from the attributes DB instead of trying to read the attributes from the analysis summaries
Reviewed By: mbouaziz
Differential Revision: D9845085
fbshipit-source-id: aef48e6bf
Summary: No longer report inconsistencies with the annotations with subtyping when the super class is in an external packages since those warnings are not necessarily accurate or actionable.
Reviewed By: ezgicicek
Differential Revision: D9845098
fbshipit-source-id: 1f2bcd739
Summary: This allows Eradicate to detect more issues related to inconsistent annotations with sub-typing.
Reviewed By: ngorogiannis
Differential Revision: D9807306
fbshipit-source-id: 159d5d4e8
Summary: Display the errors report as red in the termninal, warnings as yellow, advice as blue and the like as green.
Reviewed By: mbouaziz
Differential Revision: D9828302
fbshipit-source-id: 30315eac2
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: Buck is allowing compiler commands with no source files and skipping them when using the in-memory complier mode. However, those commands are not skipped when using an external compiler. Simulating this behavior at the level of Infer.
Reviewed By: mbouaziz, ngorogiannis
Differential Revision: D9795043
fbshipit-source-id: e80cfa453
Summary: There may be several reasons why we think a method is on the UI thread. Choose to keep the shortest via join.
Reviewed By: jeremydubreil
Differential Revision: D9806944
fbshipit-source-id: 89d27456d
Summary:
Callsites of `Reporting.log_error/warning` always use `Exceptions.Checkers`, let's simplify the API.
Under the hood it still creates an exception, but this can be cleaned up later.
Reviewed By: jeremydubreil
Differential Revision: D9799860
fbshipit-source-id: 6492a60b4
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:
The constructor `` `Typ`` is never used to build values. Removing type
substitutions from Sil.ml had knock-on effect on Typ.ml etc., resulting in more
deleted code around type substitutions \o/
Reviewed By: mbouaziz
Differential Revision: D9769340
fbshipit-source-id: 509cbd284
Summary: Sometimes it's very confusing to see why infer believes a method is running on the UI thread. Make a trace out of all the relevant info.
Reviewed By: mbouaziz
Differential Revision: D9781212
fbshipit-source-id: 6d018e400
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:
It detaches the Summary module from BufferOverrunDomain.
Depends on D9194130
Reviewed By: jvillard
Differential Revision: D9194375
fbshipit-source-id: 30392b5ce
Summary: It simplifies instantiataion of `ret_alias`. While it got `ret_alias` values by iterating caller's and callee's memory, now it gets `ret_alias` by evaluating symbol paths included in location values.
Reviewed By: mbouaziz
Differential Revision: D9569606
fbshipit-source-id: a3326bb81
Summary: Now that the def file is stored in the issue type (hence in the issue desc), no need for it here any more.
Reviewed By: martinoluca
Differential Revision: D9654109
fbshipit-source-id: 0b3c413bf
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: This list is built once only, let's avoid exposing it.
Reviewed By: jeremydubreil
Differential Revision: D9654091
fbshipit-source-id: d92f91329
Summary:
Now that we got rid of dummy nodes used non-dummily (biabduction state, reporting), `pname` don't need to be an option anymore.
Let's save a boxing on all nodes.
Reviewed By: jeremydubreil
Differential Revision: D9654152
fbshipit-source-id: 83b00f239
Summary:
Using a dummy node here made the whole reporting wrong because it didn't fail getting a `node_key` when reporting issues from checkers not using the biabduction state.
Now that it's fixed, let's fail hard if someone ever tries again.
Reviewed By: jeremydubreil
Differential Revision: D9654137
fbshipit-source-id: c00273e53
Summary: No dummy node key, as a consequence the option `--skip-duplicated-types` will have no effect on issues with no node key, i.e. issues reported by non-biabduction non-eradicate checkers.
Reviewed By: martinoluca
Differential Revision: D9633564
fbshipit-source-id: 9ff8abf21
Summary: We had a special case for fixing false positives on constexpr implicitly captured by lambdas. However, we do not report dead stores on constexpr anymore, hence, do not need the special case anymore. Moreover, the special case was not only capturing constexpr in lambdas, but also any variables which type had `const` (see new test `capture_const_bad` which was not being reported before this diff)
Reviewed By: mbouaziz
Differential Revision: D9654848
fbshipit-source-id: 882fd2804
Summary:
It simplifies abstract memory instantiations of function calls. Now it instantiates callee memories by directly evaluating symbol paths, rather than constructing `subst_map`.
main changes are:
- no construction of `subst_map` and `trace_map`
- no symbol table in Inferbo's summary
- no `Symbol_not_found` exception (for when a required symbol was unavailable in `subst_map`)
Reviewed By: mbouaziz
Differential Revision: D9495597
fbshipit-source-id: 18cdcd6f7
Summary:
Separate and rename error reporting functions that use the biabduction state.
No checkers should call these functions.
Reviewed By: da319
Differential Revision: D9633579
fbshipit-source-id: 884fcee66
Summary: We report dead store false positives in template arguments when constexpr is used. To remove the false positives, with the expense of some false negatives, we do not report dead stores on constexpr anymore.
Reviewed By: mbouaziz
Differential Revision: D9608095
fbshipit-source-id: 91b0c71c4
Summary: When a typedef-ed structure is defined in another source file, `tenv` returns a structure with empty fields.
Reviewed By: mbouaziz
Differential Revision: D9629200
fbshipit-source-id: 8859803f9
Thomas M. DuBuisson
Jules Villard
dWiGhT
Julian Sutherland
Nikos Gorogiannis
Martin Trojer
Jeremy Dubreil
Mehdi Bouaziz
Dino Distefano
Sungkeun Cho
Daiva Naudziuniene
Martino Luca
Andrey Epin
Ezgi Çiçek