Commit Graph

442 Commits

Author SHA1 Message Date
Daniel Marjamäki da363c7d6f Fixed (FP ctuuninitvar for pointer dereferenced inside sizeof) 2019-09-12 13:29:52 +02:00
Paul Fultz II 2595b82634 Fix issue 9348: FP uninitvar for pointer passed to memcpy () 2019-09-10 19:40:08 +02:00
Sebastian 4a119640c5 : Add regression test ()
* : Add regression test

https://trac.cppcheck.net/ticket/8755
False negative: uninitvar not detected

* Fixed formatting (runastyle)
2019-09-09 17:20:03 +02:00
Paul Fultz II 1afd56e964 Fix issue 8785: ValueFlow: Track pointer alias
This fixes the issue by making `ProgramMemory` keep track of values based on the conditions.

It also removes the `deadpointer` check since it duplicates the `invalidLifetime` check.
2019-09-03 17:16:15 +02:00
Paul Fultz II 55a78f482b Fix issue 9293: false negative: uninitvar 2019-09-03 06:46:34 +02:00
Daniel Marjamäki 7d63bdee6f astyle formatting
[ci skip]
2019-09-02 06:59:07 +02:00
Ken-Patrick Lehrmann 7a75aa084b Fix crash in CheckUninitVar ()
http://cppcheck.osuosl.org:8000/ycmd
```
2019-08-30 23:21
ftp://ftp.se.debian.org/debian/pool/main/y/ycmd/ycmd_0+20181101+git600f54d.orig.tar.gz
cppcheck-options: -j1 --library=posix --library=gnu --library=qt --library=python --library=googletest --library=boost -D__GNUC__ --check-library --inconclusive --enable=style,information --platform=unix64 --template=daca2 -rp=temp temp
platform: Linux-4.15.0-58-generic-x86_64-with-Ubuntu-18.04-bionic
python: 2.7.15+
client-version: 1.1.31
cppcheck: head 1.88
count: Crash! 83
elapsed-time: -11.0 61.2
head results:
Checking temp/ycmd-0+20181101+git600f54d/ycmd/tests/clang/testdata/completion_fixit.cc: __GNUC__=1...

Program received signal SIGSEGV, Segmentation fault.
CheckUninitVar::valueFlowUninit (this=this@entry=0x7fffffffb350) at build/checkuninitvar.cpp:2376
2376	            if (!tok->variable())
   CheckUninitVar::valueFlowUninit (this=this@entry=0x7fffffffb350) at build/checkuninitvar.cpp:2376
   0x00005555556901ac in CheckUninitVar::runChecks (this=<optimized out>, tokenizer=0x7fffffffbcb0, settings=0x7fffffffcd10, errorLogger=<optimized out>) at lib/checkuninitvar.h:68
   0x00005555556a2210 in CppCheck::checkNormalTokens (this=this@entry=0x7fffffffcaf0, tokenizer=...) at build/cppcheck.cpp:730
   0x00005555556a6ee2 in CppCheck::checkFile (this=this@entry=0x7fffffffcaf0, filename="temp/ycmd-0+20181101+git600f54d/ycmd/tests/clang/testdata/completion_fixit.cc", cfgname="", fileStream=...) at build/cppcheck.cpp:540
   0x00005555556aad4c in CppCheck::check (this=this@entry=0x7fffffffcaf0, path="temp/ycmd-0+20181101+git600f54d/ycmd/tests/clang/testdata/completion_fixit.cc") at build/cppcheck.cpp:195
   0x00005555557ef167 in CppCheckExecutor::check_internal (this=this@entry=0x7fffffffd880, cppcheck=..., argv=argv@entry=0x7fffffffdc08) at cli/cppcheckexecutor.cpp:884
   0x00005555557efa9a in CppCheckExecutor::check (this=0x7fffffffd880, argc=17, argv=0x7fffffffdc08) at cli/cppcheckexecutor.cpp:198
   0x00005555555b1d1b in main (argc=17, argv=0x7fffffffdc08) at cli/main.cpp:95
```
2019-09-01 14:51:40 +02:00
Paul Fultz II 0b9e823fc8 Fix issue 9305: False positive uninitvar - struct initialized via function () 2019-08-30 18:32:45 +02:00
Paul Fultz II 2942be53f7 Add more tests for valueFlowUninit () 2019-08-30 08:41:17 +02:00
Paul Fultz II 03fe6795bf Fix issue 9302: FP uninitvar - struct accessed via pointer () 2019-08-29 08:38:50 +02:00
amai2012 1538248922 Fix syntax in test code example 2019-08-26 20:45:14 +02:00
Daniel Marjamäki 9d26be8380 Fixed (Improve check: Uninitialized variable not reported when used in array initialization) 2019-08-24 14:43:35 +02:00
Paul Fultz II 5c488b9519 Fix issue 9190: FP uninitvar for struct member ()
* Fix issue 9190: FP uninitvar for struct member

* Add more test cases

* Fix false negative
2019-08-24 11:27:47 +02:00
Daniel Marjamäki 35fb55d76c Fixed (Improve check: Uninitialized variable not reported when used in array initialization) 2019-08-24 08:01:55 +02:00
Paul Fultz II c0a8d628b9 Fix issue 6010: Uninitialized inner struct ()
* Fix issue 6010: Uninitialized inner struct

* Show to root variable that is unitialized

* Warn on pointer dereferences
2019-08-23 06:23:20 +02:00
Paul Fultz II 1f747d0b14 Add regression test for 9281 () 2019-08-19 09:09:07 +02:00
Paul Fultz II ee7fe3aaa1 Fix FP: Unitialized variable when using a pointer
This fixes the FP in cases like this:

```cpp
void f() {
    bool b;
    bool * x = &b;
    if (x != nullptr)
        x = 1;
}
```

It tracks the indirection of the uninit value in valueflow.
2019-08-17 07:36:41 +02:00
Paul Fultz II 3aef0c9bd3 Fix issue 8715: regression uninitvar not detected () 2019-08-16 07:48:54 +02:00
Paul Fultz II af214e8212 Fix issue 8825: ValueFlow: uninitialized struct member ()
* Pass uninit value across pointers

* Add more testing
2019-08-15 10:44:55 +02:00
Daniel Marjamäki e11dcc609b Fixed (Function array is seen as Uninitialized) 2019-07-24 18:20:23 +02:00
Rikard Falkeborn 06337cedf5 Run more tests on full token list ()
Since all checks are run on the full token list and not the simplified
one, run the tests on the full token list as well.
2019-07-22 10:26:55 +02:00
Daniel Marjamäki 7ca35d181b uninitStructMember: Fixed FP shown in daca@home 2019-06-02 20:19:53 +02:00
Daniel Marjamäki b9ac77a31b Uninitialized variables: Fixed false positive 2019-03-09 11:30:45 +01:00
Sebastian c8003d47e2
checkuninitvar.cpp: Use argument direction "out" info from library cfg ()
CheckUninitVar::isMemberVariableAssignment uses argument direction "out"
now also to check for assignment when the member variable is handed over
to a function by reference.
testuninitvar.cpp: Improve tests, use a test library configuration.
2019-03-08 18:42:24 +01:00
Daniel Marjamäki 8a3b73ffdb Do not write extra uninitvar warnings 2019-03-02 13:17:15 +01:00
Daniel Marjamäki e27a7a585f Fix uninitvar false positive when taking address of variable 2019-02-27 18:44:30 +01:00
Daniel Marjamäki 80143725dd Fixed (False positive uninitvar related to casting) 2019-02-27 17:58:25 +01:00
Daniel Marjamäki b248075aae Comment bailout
[ci skip]
2019-02-26 19:28:11 +01:00
Daniel Marjamäki 9e93e89a4d UninitVar: Fix false positives when there is possible cast 2019-02-26 19:26:46 +01:00
Daniel Marjamäki 6ca1aba4a7 UninitVar: Fix --experimental-fast issues 2019-02-10 19:00:01 +01:00
Daniel Marjamäki bd7790fd8c Update copyright year 2019-02-09 07:24:06 +01:00
Daniel Marjamäki 8dd641b8be Use OVERRIDE in test 2019-01-12 15:45:25 +01:00
Daniel Marjamäki c8901e9bab CTU: Find paths better 2018-12-30 16:23:25 +01:00
Daniel Marjamäki 271763e680 CTU: Refactoring 2018-12-25 21:11:23 +01:00
Daniel Marjamäki 0f63874c62 Take back the whole program analysis for null pointers and uninitialized variables 2018-12-18 07:56:33 +01:00
Simon Martin 915acac0b8 Ticket : Skip static member variables in CheckUninitVar. () 2018-09-22 16:52:34 +02:00
Daniel Marjamäki fc97a5b11c Uninitalized variables: Fixed false positive 2018-08-15 18:04:36 +02:00
IOBYTE ce50df8047 Fix override warnings. () 2018-05-15 16:37:40 +02:00
Daniel Marjamäki 26e36a1d6b Fix FP uninitvar when stream bool operator is used 2018-04-18 16:13:24 +02:00
Daniel Marjamäki c84628c28a Fixed (False positive: serialization class overloads operator) 2018-04-17 14:23:04 +02:00
Daniel Marjamäki 58066b1f0c Remove whole program analysis from 'uninitialized variables' and 'null pointer dereference' checkers. I think this logic can more or less be added in ValueFlow instead and then all ValueFlow checkers should get whole program analysis. 2018-02-06 14:56:17 +01:00
Daniel Marjamäki dbc6771a0b Uninitialized variables: Fix FP for unknown macro like 'list_for_each' 2018-02-04 22:30:08 +01:00
Daniel Marjamäki d47b7726fa Uninitialized variables: Fix potential false positives in subfunction if there is early return or conditional writes 2018-02-04 09:40:57 +01:00
Daniel Marjamäki 9109956c8c UninitVar: Improve whole program analysis, used isVariableUsage() 2018-01-25 21:49:21 +01:00
Daniel Marjamäki f73da16e94 Revert "UninitVar: Better checking in whole program analysis"
This reverts commit b2bdc2687b.
2018-01-25 17:05:57 +01:00
Daniel Marjamäki b2bdc2687b UninitVar: Better checking in whole program analysis 2018-01-25 15:56:46 +01:00
Daniel Marjamäki ce60b326f4 Whole program analysis: Improved handling of nested calls 2018-01-24 22:53:14 +01:00
Daniel Marjamäki 100887429d Uninitialized variables: Whole program analysis for function calls 2018-01-15 15:54:09 +01:00
Daniel Marjamäki c4caee6b18 Updated copyright year 2018-01-14 15:37:52 +01:00
Daniel Marjamäki 255b788d4d Fixed (Improve check: allocated but not initialized (condition)) 2018-01-02 23:20:46 +01:00