Summary: public
The context leaks were reported multiple times. If a leaks was found on method `f()` and `g()` calls `f()`, then the same leak was report both in `f()` and in `g()`.
Reviewed By: sblackshear
Differential Revision: D2598110
fb-gh-sync-id: ca90b57
Summary: public
Adding initial support for Buck for Cxx on the toplevel infer command.
If a `cxx_binary`/`cxx_library` builds with the command `buck build //targetName:target` then the analysis of Infer can be triggered through the `#infer` flavor.
This change configures buck to run Infer, whenever the `#infer` flavor gets passed: just run
`infer --use-flavors -- buck build //targetName:target#infer`
Please note that when using this feature (`--use-flavors`), the toplevel `infer` command has to be launched from the root of the buck project (which is where the `.buckconfig` file is located) and the `#infer` flavor must be passed on the target.
Reviewed By: jvillard
Differential Revision: D2508296
fb-gh-sync-id: 63c0dea
Summary: public
For instance:
cd examples/
infer -- gcc -c hello.c
gives:
Starting analysis (Infer version git-c66ed7b302c996f238b6ec20cfcf4f6193fcbd88)
Analysis done
hello.c:5: error: NULL_DEREFERENCE
pointer s last assigned on line 4 could be null and is dereferenced at line 5, column 3
3. void test() {
4. int *s = NULL;
5. > *s = 42;
6. }
Reviewed By: jeremydubreil
Differential Revision: D2600864
fb-gh-sync-id: 71e0bd4
Summary: public Translate classes and protocols on demand only.
This saves space in the tenv and time. The categories still cannot be translated on demand
because there is no pointer to them from the classes. Andrzej is fixing that.
We had to make cTypes_Decl and the modules for translating classes, protocols and categories mutually
recursive. Moreover, we had to reorder the method for adding classes to the tenv to receive a decl and
return a type.
Reviewed By: ddino
Differential Revision: D2595610
fb-gh-sync-id: ca76068
Summary: public
Add a `--html` options to inferTraceBugs to generate html reports.
Reviewed By: jeremydubreil
Differential Revision: D2595895
fb-gh-sync-id: adfa757
Summary: public
Extends the current activity leak checker to all sort of context leaks.
Reviewed By: sblackshear
Differential Revision: D2572548
fb-gh-sync-id: 9da18e4
Summary: public
The relative path was triggering a bug in ocamlbuild where it would try to
create ".." for some reason, which already exists. Hence `make -C infer clean
checkCopyright` would always fail for instance.
Reviewed By: jeremydubreil
Differential Revision: D2596307
fb-gh-sync-id: 0dd8d9f
Summary: public
The harness was created all the time but we do not report issues comming from the harness right now. The option:
infer --android-harness -- <build command>
Allows to create the harness
Reviewed By: sblackshear
Differential Revision: D2595211
fb-gh-sync-id: c7a6dc5
Summary: public
This allow to tell Infer to skip the translation of some files. This is especially useful to skip the translation of some generated files following the syntax:
> cat .inferconfig
{
"skip_translation": [
{
"language": "Java",
"source_contains": "_SHOULD_BE_SKIPPED_"
}
]
}
Reviewed By: cristianoc
Differential Revision: D2588095
fb-gh-sync-id: 3fda816
Summary: public
In C pre-increment/decrement returns rvalue, but in C++ it returns lvalue.
Make translation aware of the difference and treat these cases differently.
Reviewed By: ddino
Differential Revision: D2575136
fb-gh-sync-id: 952c095
Summary: public
Translating structs and C++ classes only on demand. This reduces the size of the tenv and
saves analysis time.
Reviewed By: ddino
Differential Revision: D2575008
fb-gh-sync-id: b29da2a
Summary: public
Update clang plugin version that has following changes:
1. Don't dump DeclContext as a part of BlockDecl
2. Add location information to C++ constructor initializers
This diff is making infer compatible with these changes by
1. Making infer compile
2. Reading location information from c++ constructor initializers so we don't miss update to line number
Reviewed By: dulmarod
Differential Revision: D2575066
fb-gh-sync-id: 6dc594a
Summary: public
Refactor translation of C++ method calls so that we get two parts:
1. Get Sil code for method address and this expression
2. Given method address, this expression and list of paramter statements, create Call instruction
This will allow us to share more code with C++ constructor calls that do (1) differently, but
(2) will be shared
Reviewed By: dulmarod
Differential Revision: D2570712
fb-gh-sync-id: 9c6c3e4
Summary: public
The option `-a compile` was previously doing the same thing as `-a capture`. This option is very useful to debug the integration with the build systems.
Reviewed By: jvillard
Differential Revision: D2554816
fb-gh-sync-id: 95f32c2
Summary: public
Remove spurious recursion between type and function declarations in the files
generated via `atdgen`. This speeds up the compilation time of `make clang` by
almost half (one-shot measurements: 59s -> 36s).
Silence warning 39 on this generated code to make compilation pass.
Reviewed By: akotulski
Differential Revision: D2570506
fb-gh-sync-id: 8edba22
Summary: public Add instructions how to use the docker image, a script to automatically
build and run the docker container, and base the docker image on the latest
release of infer instead of git, which saves compiling clang.
Reviewed By: cristianoc
Differential Revision: D2564909
fb-gh-sync-id: 5c8ea96
Summary: public
Update plugin. Change:
- ConstrutorExpr exports decl_ref of ConstructorDecl instead of just pointer to the declaration
Reviewed By: dulmarod
Differential Revision: D2569978
fb-gh-sync-id: ebc687f
Summary: public This diff fixes incorrect mangling of captured variables in blocks. Because they are formals,
they shouldn't be mangled, but this case was not taken into account. This caused an assert false in the
example infer/tests/codetoanalyze/objc/frontend/block/block.m which wasn't caught before because there
wasn't an endtoend test for it.
Reviewed By: akotulski
Differential Revision: D2560379
fb-gh-sync-id: db500b6
Summary: public
Adds incomplete translation of constructor bodies. Treat constructors as
methods with something 'extra'.
We still don't translate initializer lists, just pass the information to cTrans
where it's ignored
Reviewed By: dulmarod
Differential Revision: D2550214
fb-gh-sync-id: 102c13a
Summary: public anonymous types have file:line in its name.
Since file is relative path, type name can have '/' in its name.
This is very fragile since we might create file wiht typename in its name (for example for methods).
Replacing '/' with '_' should make frontend more resilient to failure.
Translation of anonymous structs is still pretty fragile (due to relative path in its name),
but at least it doesn't crash frontend
Reviewed By: dulmarod
Differential Revision: D2559936
fb-gh-sync-id: 647fd7f
Summary: public
Just some refactoring and renaming of Makefile variables.
Reviewed By: jeremydubreil
Differential Revision: D2555766
fb-gh-sync-id: 5b7d4ff
Summary: public Refactoring Printfargs checker a bit to
make it callable from symbolic executor, then calling it.
Reviewed By: jeremydubreil
Differential Revision: D2361286
fb-gh-sync-id: 4b73855
Summary: public
modules are better for namespacing.
How I made this diff:
1. moved list_* functions from utils.ml{,i} to iList.ml{,i}
2. shell commands:
grep '^val ' infer/src/backend/iList.mli | cut -f 2 -d ' ' | tr '\n' ' '
# gives a list of former list_ functions that IList implements, fed into the loops below:
LISTNAMES=" compare equal append combine exists filter flatten flatten_options find fold_left fold_left2 for_all for_all2 hd iter iter2 length fold_right map mem nth partition rev rev_append rev_map sort split stable_sort tl drop_first drop_last rev_with_acc remove_duplicates remove_irrelevant_duplicates merge_sorted_nodup intersect mem_assoc assoc map2 to_string"
# replace " list_*" function calls with IList.* ones
for i in $LISTNAMES; do find . -name '*.ml' -exec sed -i -e "s/ list_$i\b/ IList.$i/g" \{\} \; ; done
# replace (list_* functions with (IList.* ones
for i in $LISTNAMES; do find . -name '*.ml' -exec sed -i -e "s/(list_$i\b/(IList.$i/g" \{\} \; ; done
# ditto with [
for i in $LISTNAMES; do find . -name '*.ml' -exec sed -i -e "s/\[list_$i\b/[IList.$i/g" \{\} \; ; done
3. Then fix up the rest by hand. In particular, stuff that called Utils.list_*
explicitely, and stuff that used the "Fail" exception that has moved to
IList. (may revisit this in the future)
Reviewed By: jeremydubreil, cristianoc
Differential Revision: D2550241
fb-gh-sync-id: cd64b10
Summary: public
C++ assignment operation result is lvalue, while in C it was rvalue.
This leads to different AST produced by clang for then same code!
Use language information from clang (`-x` flag) to distinguish these cases.
More specifically, let's look at following code:
int r;
int f = (r = 3);
// type of (r = 3) expression:
// C/objC -> int rvalue
// C++/objC++ -> int lvalue
Existing code did extra dereference because it was rvalue in C and there was no cast afterwards
in C++ there will be extra LValueToRvalue cast when neccesary so we don't have to do extra dereference manually
Reference:
http://en.cppreference.com/w/c/language/value_category (search for 'assignment and compound assignment operators')
NOTE: AST output doesn't change when something is hidden behind `extern "C"`, so we should use global language information
Reviewed By: ddino
Differential Revision: D2549866
fb-gh-sync-id: b193b11
Summary: public Two cases were not handled properly so far:
1. Declaration of a reference variable missed reference bit in type
2. Parameters to a function expecting T& had type T.
The way to distinguish reference types from value types is to look
whether parameter is type 'T rvalue' or type 'T lvalue' (xvalue probably as well)
Unfortunately, we can't just say 'T lvalue' = 'T&' because it would break
a lot of things in our frontend.
However, we know that when parameter to a function call has type 'T lvalue', it has to be 'T&' type.
Same applies when init_expression type is lvalue.
So, the solution is to add wrapper function that looks at results of `instruction` function and
expected expression type. Then if it's lvalue, wrap the type in reference.
Do this wrapping magic only when we know that lvalue mean reference type.
The rest of the changes is to make frontend tests pass - since we use different fields
in the AST, some of them were incorrectly set before and no one noticed.
Reviewed By: cristianoc
Differential Revision: D2549991
fb-gh-sync-id: 067f5d5
jrm
martinoluca
Jules Villard
Cristiano Calcagno
Dulma Rodriguez
Peter O'Hearn
Sam Blackshear
Andrzej Kotulski