History log of /external/clang/test/Analysis/malloc-plist.c
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
87d948ecccffea9e9e37d0d053b246e2d6d6c47b 04-Mar-2016 Pirama Arumuga Nainar <pirama@google.com> Update aosp/master clang for rebase to r256229

http://b/26987366

Change-Id: I5d349c9843ea5c24d6e455956f8a446393b6873d
/external/clang/test/Analysis/malloc-plist.c
0e2c34f92f00628d48968dfea096d36381f494cb 23-Mar-2015 Stephen Hines <srhines@google.com> Update aosp/master clang for rebase to r230699.

Change-Id: I6a546ab3d4ae37119eebb735e102cca4f80ab520
/external/clang/test/Analysis/malloc-plist.c
048eeea6852043990c87e52938b53b5337bd098e 04-Jun-2013 Jordan Rose <jordan_rose@apple.com> [analyzer] Enable the new edge algorithm by default.

...but don't yet migrate over the existing plist tests. Some of these
would be trivial to migrate; others could use a bit of inspection first.
In any case, though, the new edge algorithm seems to have proven itself,
and we'd like more coverage (and more usage) of it going forwards.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183165 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
148d9223f02dba1ba6e40848d413daa3ffc09dfe 16-Apr-2013 Anna Zaks <ganna@apple.com> [analyzer] Improve the malloc checker stack hint message

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179580 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
7be2245487f9cd7d04f013db92280d9ccd323586 12-Apr-2013 Jordan Rose <jordan_rose@apple.com> [analyzer] Show "Returning from ..." note at caller's depth, not callee's.

Before:
1. Calling 'foo'
2. Doing something interesting
3. Returning from 'foo'
4. Some kind of error here

After:
1. Calling 'foo'
2. Doing something interesting
3. Returning from 'foo'
4. Some kind of error here

The location of the note is already in the caller, not the callee, so this
just brings the "depth" attribute in line with that.

This only affects plist diagnostic consumers (i.e. Xcode). It's necessary
for Xcode to associate the control flow arrows with the right stack frame.

<rdar://problem/13634363>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179351 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
8cf91f7efb4dcb238fe443915d9a30119ce5b70c 11-Apr-2013 Anna Zaks <ganna@apple.com> [analyzer] Address Jordan’s review of r179219

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179235 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
27d99dd714895564b526b786284a46b40f53be01 10-Apr-2013 Anna Zaks <ganna@apple.com> [analyzer] Cleanup leak warnings: do not print the names of variables from other functions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179219 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
68eb4c25e961d18f82b47a0a385f90d7af09bcc3 06-Apr-2013 Anna Zaks <ganna@apple.com> [analyzer] Shorten the malloc checker’s leak message

As per Ted’s suggestion!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178938 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
6dfb96045bebe00212d251da1dad4660cb8652ac 08-Jan-2013 Anna Zaks <ganna@apple.com> [analyzer] Only include uniqueling location as issue_hash when available

This makes us more optimistic when matching reports in a changing code
base. Addresses Jordan's feedback for r171825.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171884 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
97bfb558f69c09b01a5c1510f08dc91eb62329a7 08-Jan-2013 Anna Zaks <ganna@apple.com> [analyzer] Include the bug uniqueing location in the issue_hash.

The issue here is that if we have 2 leaks reported at the same line for
which we cannot print the corresponding region info, they will get
treated as the same by issue_hash+description. We need to AUGMENT the
issue_hash with the allocation info to differentiate the two issues.

Add the "hash" (offset from the beginning of a function) representing
allocation site to solve the issue.

We might want to generalize solution in the future when we decide to
track more than just the 2 locations from the diagnostics.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171825 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
c1c6a4981a4b50476d71c88f8dac81a1430885ed 08-Jan-2013 Anna Zaks <ganna@apple.com> [analyzer] Plist: change the type of issue_hash from int to string.

This gives more flexibility to what could be stored as issue_hash.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171824 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
63bc186d6ac0b44ba4ec6fccb5f471b05c79b666 15-Nov-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Report leaks at the closing brace of a function body.

This fixes a few cases where we'd emit path notes like this:

+---+
1| v
p = malloc(len);
^ |2
+---+

In general this should make path notes more consistent and more correct,
especially in cases where the leak happens on the false branch of an if
that jumps directly to the end of the function. There are a couple places
where the leak is reported farther away from the cause; these are usually
cases where there are several levels of nested braces before the end of
the function. This still matches our current behavior for when there /is/
a statement after all the braces, though.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168070 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
84c484545c5906ba55143e212b4a5275ab55889f 15-Nov-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Mark symbol values as dead in the environment.

This allows us to properly remove dead bindings at the end of the top-level
stack frame, using the ReturnStmt, if there is one, to keep the return value
live. This in turn removes the need for a check::EndPath callback in leak
checkers.

This does cause some changes in the path notes for leak checkers. Previously,
a leak would be reported at the location of the closing brace in a function.
Now, it gets reported at the last statement. This matches the way leaks are
currently reported for inlined functions, but is less than ideal for both.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168066 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
22505ef15e32db31a4f834a387cf73a913bc8f66 08-Sep-2012 Ted Kremenek <kremenek@apple.com> Fix bug in BugReporter::RemoveUneededCalls() where "prunable"
PathDiagnosticEventPieces were *always* pruned. Instead, they
are suppose to only be pruned if the entire call gets pruned.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163460 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
49f9434a4a69d56779aa37feb2d85e06e7289fce 08-Sep-2012 Ted Kremenek <kremenek@apple.com> This test does not require --exact-match from FileCheck.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163456 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
0187a1b8b9b2b7657de0ba8b0d4f67d30bec83e8 08-Sep-2012 Ted Kremenek <kremenek@apple.com> Attempt (again) to stabilize the order of the emission of diagnostics
of the analyzer by using the FullProfile() of a PathDiagnostic
for ordering them.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163455 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
a64fae162fd1ca9398f6f4ecb27648d965e01587 08-Jun-2012 Anna Zaks <ganna@apple.com> [analyzer] Add experimental "issue hash" to the plist diagnostic.

CmpRuns.py can be used to compare issues from different analyzer runs.
Since it uses the issue line number to unique 2 issues, adding a new
line to the beginning of a file makes all issues in the file reported as
new.

The hash will be an opaque value which could be used (along with the
function name) by CmpRuns to identify the same issues. This way, we only
fail to identify the same issue from two runs if the function it appears
in changes (not perfect, but much better than nothing).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158180 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
7453a72cd0dcc70f29006ba488b743f078072bc7 06-Jun-2012 Ted Kremenek <kremenek@apple.com> PlistDiagnostics: force the ranges for control-flow edges to be single locations, forcing
adjacent edges to have compatible ranges. This simplifies the layout logic for some clients.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158028 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
88feba05142651618aba0a0e57b0b98e026de336 10-May-2012 Anna Zaks <ganna@apple.com> [analyzer] Do not highlight the range of the statement in case of leak.

We report a leak at a point a leaked variable is no longer accessible.
The statement that happens to be at that point is not relevant to the
leak diagnostic and, thus, should not be highlighted.

radar://11178519

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156530 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
11abcecc8c919673237cf37384290a1ef1943976 02-May-2012 Ted Kremenek <kremenek@apple.com> Refine analyzer diagnostics by adding an expression "cone-of-influence" to reverse track interesting
values through interesting expressions. This allows us to map from interesting values in a caller
to interesting values in a caller, thus recovering some precision in diagnostics lost from IPA.

Fixes <rdar://problem/11327497>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155971 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
0b3ade86a1c60cf0c7b56aa238aff458eb7f5974 20-Apr-2012 Anna Zaks <ganna@apple.com> [analyzer] Run remove dead bindings right before leaving a function.

This is needed to ensure that we always report issues in the correct
function. For example, leaks are identified when we call remove dead
bindings. In order to make sure we report a callee's leak in the callee,
we have to run the operation in the callee's context.

This change required quite a bit of infrastructure work since:
- We used to only run remove dead bindings before a given statement;
here we need to run it after the last statement in the function. For
this, we added additional Program Point and special mode in the
SymbolReaper to remove all symbols in context lower than the current
one.
- The call exit operation turned into a sequence of nodes, which are
now guarded by CallExitBegin and CallExitEnd nodes for clarity and
convenience.

(Sorry for the long diff.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155244 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
07189521a15d9c088216b943649cb9fe231cbb57 04-Apr-2012 Ted Kremenek <kremenek@apple.com> Include the "issue context" (e.g. function or method) where a static analyzer issue occurred in the plist output.

Fixes <rdar://problem/11004527>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154030 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
3d7c44e01d568e5d5c0fac9c6ccb3f080157ba19 21-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] Malloc: Utter the name of the leaked variable.
Specifically, we use the last store of the leaked symbol in the leak diagnostic.
(No support for struct fields since the malloc checker doesn't track those
yet.)

+ Infrastructure to track the regions used in store evaluations.
This approach is more precise than iterating the store to
obtain the region bound to the symbol, which is used in RetainCount
checker. The region corresponds to what is uttered in the code in the
last store and we do not rely on the store implementation to support
this functionality.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153212 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
046c9e6d18b1ee8c77755336bf350cc4ca8545ca 21-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] Re-enable the test disabled by r152969.
(The fix was committed in r152982.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153210 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
393f98b5b7f7c950d2b0a7d84501b5dfd00ad780 18-Mar-2012 Jordy Rose <jediknil@belkadan.com> [analyzer] Mark a failed-realloc's result as an interesting symbol between the realloc call and the null check, so we get nicer path notes. Fixes a regression introduced by the diagnostic pruning added in r152361.

This is accomplished by calling markInteresting /during/ path diagnostic generation, and as such relies on deterministic ordering of BugReporterVisitors -- namely, that BugReporterVisitors are run in /reverse/ order from how they are added. (Right now that's a consequence of storing visitors in an ImmutableList, where new items are added to the front.) It's a little hacky, but it works for now.

I think this is the best we can do without storing the relation between the old and new symbols, and that would be a hit whether or not there ends up being an error.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153010 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
9c20b75ad622456cb4811a21f436cfe4543cc1d1 17-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] This test is breaking windows bots, make it darwin-specific.

(The plist output does not match the one we expect, specifically we do
not detect that the interesting symbol is returned by a call.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152969 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
fbd58743fa6c793b84ed60a0e2325335a53da6c4 17-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] Shorten the stack hint diagnostic.

Do not display the standard "Returning from 'foo'", when a stack hint is
available.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152964 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
56a938ff85a444eb3d30d2634d92ce5b1f6fae56 17-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] Create symbol-aware stack hints (building upon r152837).

The symbol-aware stack hint combines the checker-provided message
with the information about how the symbol was passed to the callee: as
a parameter or a return value.

For malloc, the generated messages look like this :
"Returning from 'foo'; released memory via 1st parameter"
"Returning from 'foo'; allocated memory via 1st parameter"
"Returning from 'foo'; allocated memory returned"
"Returning from 'foo'; reallocation of 1st parameter failed"


(We are yet to handle cases when the symbol is a field in a struct or
an array element.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152962 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
11e35b62c1966f0796fd12ed37a4ec2279aea505 15-Mar-2012 Ted Kremenek <kremenek@apple.com> Include full plist output in FileCheck test.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152858 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
368a0d565f078666ca5bfb7fe08d04648688e4bc 15-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] Allow checkers to supply call stack diagnostic hints for the
BugVisitor DiagnosticPieces.

When checkers create a DiagnosticPieceEvent, they can supply an extra
string, which will be concatenated with the call exit message for every
call on the stack between the diagnostic event and the final bug report.
(This is a simple version, which could be/will be further enhanced.)

For example, this is used in Malloc checker to produce the ",
which allocated memory" in the following example:

static char *malloc_wrapper() { // 2. Entered call from 'use'
return malloc(12); // 3. Memory is allocated
}

void use() {
char *v;
v = malloc_wrapper(); // 1. Calling 'malloc_wrappers'
// 4. Returning from 'malloc_wrapper', which allocated memory
} // 5. Memory is never released; potential
memory leak

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152837 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
fc544e3d52c43746b1b273f38ec7d65461f0064a 13-Mar-2012 Anna Zaks <ganna@apple.com> [analyzer] Call enter/exit diagnostic should refer to caller/callee,
respectively.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152676 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
76aadc346c3a4c363238a1e1232f324c3355d9e0 09-Mar-2012 Ted Kremenek <kremenek@apple.com> [analyzer] Implement basic path diagnostic pruning based on "interesting" symbols and regions.
Essentially, a bug centers around a story for various symbols and regions. We should only include
the path diagnostic events that relate to those symbols and regions.

The pruning is done by associating a set of interesting symbols and regions with a BugReporter, which
can be modified at BugReport creation or by BugReporterVisitors.

This patch reduces the diagnostics emitted in several of our test cases. I've vetted these as
having desired behavior. The only regression is a missing null check diagnostic for the return
value of realloc() in test/Analysis/malloc-plist.c. This will require some investigation to fix,
and I have added a FIXME to the test case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152361 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
bb2a6864f111e13f7905725963649c60c60bf18b 20-Feb-2012 Anna Zaks <ganna@apple.com> [analyzer] Turn on by default the Malloc Checker and a couple of CString
checks:

- unix.Malloc - Checks for memory leaks, double free, use-after-free.
- unix.cstring.NullArg - Checks for null pointers passed as arguments to
CString functions + evaluates CString functions.
- unix.cstring.BadSizeArg - Checks for common anti-patterns in
strncat size argument.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150988 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
febdc324faaf1678a4f41497fd691efe54e145c9 16-Feb-2012 Anna Zaks <ganna@apple.com> [analyzer] Malloc Checker: Clean up bug naming:
- Rename the category "Logic Error" -> "Memory Error".
- Shorten all the messages.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150733 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
fe571608b925079227d053a459eca86f7408e5c6 16-Feb-2012 Anna Zaks <ganna@apple.com> [analyzer] Malloc Checker: Make the diagnostic visitor handle the case
of failing realloc. + Minor cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150732 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c
5a0917d1367115d5fddfe7551f8634759217b54b 16-Feb-2012 Anna Zaks <ganna@apple.com> [analyzer] Diagnostics: Ensure that the default end of diagnostic path
piece can always be generated.

The default end of diagnostic path piece was failing to generate on a
BlockEdge that was outgoing from a basic block without a terminator,
resulting in a very simple diagnostic being rendered (ex: no path
highlighting or custom visitors). Reuse another function, which is
essentially doing the same thing and correct it not to fail when a block
has no terminator.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150659 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/malloc-plist.c