ecd2ba2ece
* MISRA: Refactor many top level functions into a class All the checker operations were implemented as individual functions. In order to share data globals were used. By refactoring all these into class methods data can be shared between them without resorting to globals. This change is scope only. No functional change for any of the methods. Data is still shared via globals. * MISRA: Refactor non-option globals into MisraChecker class - Move all non-option global variables into the MisraChecker class - Allows data to be shared among the class methods without needing globals. - Move global VERIFY_EXPECTED to class variable verify_expected - Move global VERIFY_ACTUAL to class variable verify_actual - Move global VIOLATIONS to class variable violations - Move global suppressRules to class variable suppressedRules - Move global suppressions to class variable dumpfileSuppressions This refactoring is in anticipation of parsing and using the suppressions added into the dump file by cppcheck. Only variable naming and scope changed. No functional change for any of the methods. * MISRA: Restore original summary behavior Version 1.84 introduced a regression in the behavior of the rule summary output due to changes in the way multiple input files were handled. The intended behavior of the summary was to output the total number of violations after all files have been processed. Commit aa831ce9721c35a80a2b9aa173e169d2b88905be restored the input file handling behavior but left summary behavior such that a summary output was produced for each file that caused a violation instead of the total number of violations after all files were processed. Move the -verify logic up into the main loop so that the exit calls are in the top level and restore the original behavior of the summary output. * MISRA: Support per file rule suppressions Parse the suppressions list from cppcheck and extract MISRA rule strings from the suppressions class by matching for errorId strings that begin with 'MISRA' or 'misra'. Extract the MISRA rule from those strings by looking for a '_' or a '.' to separate rule numbers. Store the rule number, filename, line number, and symbol name from the suppression entry into a structure that allows for dictionary lookups by the rule number and then the filename. All the line number and symbol entries for that filename are are stored in list of tuples of (line number, symbol name). A rule entry that has a value of None for the filename is treated as a global suppression for all files. A filename entry that has None for the rule items list is treated as a suppression for the entire file. If the rule item list exist then it is searched for matching line numbers. Although symbol names are parsed and added int the list of rule items they are not used for rule matching. Symbol names can include regular expressions. Adding support for symbol names and regular expressions is left as a future feature. The existing global suppression method provided by the --suppress-rules option is supported. Those rules are added into the suppressions structure as if they were provided by the suppressions list as global suppressions. ie A rule with a None for the filename value.
Cppcheck
| Linux Build Status | Windows Build Status | Coverity Scan Build Status |
|---|---|---|
 |
 |
 |
Donations
If you find Cppcheck useful for you, feel free to make a donation.
About the name
The original name of this program was "C++check", but it was later changed to "Cppcheck".
Despite the name, Cppcheck is designed for both C and C++.
Manual
A manual is available online.
Compiling
Any C++11 compiler should work. For compilers with partial C++11 support it may work. If your compiler has the C++11 features that are available in Visual Studio 2013 / GCC 4.6 then it will work.
To build the GUI, you need Qt.
When building the command line tool, PCRE is optional. It is used if you build with rules.
There are multiple compilation choices:
- qmake - cross platform build tool
- cmake - cross platform build tool
- Windows: Visual Studio (VS 2010 and above)
- Windows: Qt Creator + mingw
- gnu make
- g++ 4.6 (or later)
- clang++
qmake
You can use the gui/gui.pro file to build the GUI.
cd gui
qmake
make
Visual Studio
Use the cppcheck.sln file. The file is configured for Visual Studio 2015, but the platform toolset can be changed easily to older or newer versions. The solution contains platform targets for both x86 and x64.
To compile with rules, select "Release-PCRE" or "Debug-PCRE" configuration. pcre.lib (pcre64.lib for x64 builds) and pcre.h are expected to be in /externals then.
Qt Creator + MinGW
The PCRE dll is needed to build the CLI. It can be downloaded here: http://software-download.name/pcre-library-windows/
GNU make
Simple, unoptimized build (no dependencies):
make
The recommended release build is:
make SRCDIR=build CFGDIR=cfg HAVE_RULES=yes CXXFLAGS="-O2 -DNDEBUG -Wall -Wno-sign-compare -Wno-unused-function"
Flags:
-
SRCDIR=build
Python is used to optimise cppcheck -
CFGDIR=cfg
Specify folder where .cfg files are found -
HAVE_RULES=yes
Enable rules (PCRE is required if this is used) -
CXXFLAGS="-O2 -DNDEBUG -Wall -Wno-sign-compare -Wno-unused-function"Enables most compiler optimizations, disables cppcheck-internal debugging code and enables basic compiler warnings.
g++ (for experts)
If you just want to build Cppcheck without dependencies then you can use this command:
g++ -o cppcheck -std=c++11 -Iexternals/simplecpp -Iexternals/tinyxml -Ilib cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml/*.cpp
If you want to use --rule and --rule-file then dependencies are needed:
g++ -o cppcheck -std=c++11 -lpcre -DHAVE_RULES -Ilib -Iexternals/simplecpp -Iexternals/tinyxml cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml/*.cpp
MinGW
mingw32-make LDFLAGS=-lshlwapi
Other Compiler/IDE
- Create a empty project file / makefile.
- Add all cpp files in the cppcheck cli and lib folders to the project file / makefile.
- Add all cpp files in the externals folders to the project file / makefile.
- Compile.
Cross compiling Win32 (CLI) version of Cppcheck in Linux
sudo apt-get install mingw32
make CXX=i586-mingw32msvc-g++ LDFLAGS="-lshlwapi" RDYNAMIC=""
mv cppcheck cppcheck.exe