walkero
/
cppcheck
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity
cppcheck/addons
History
Tim Blume b70e1df26c
fix crash while checking misra_9 when initializing a union with {{0,0}} (#5250) 
This fixes a crash with following error:
```
Traceback (most recent call last):
  File "/usr/local/share/Cppcheck/addons/runaddon.py", line 8, in <module>
    runpy.run_path(addon, run_name='__main__')
  File "<frozen runpy>", line 291, in run_path
  File "<frozen runpy>", line 98, in _run_module_code
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/local/share/Cppcheck/addons/misra.py", line 4737, in <module>
    main()
  File "/usr/local/share/Cppcheck/addons/misra.py", line 4679, in main
    checker.parseDump(item)
  File "/usr/local/share/Cppcheck/addons/misra.py", line 4335, in parseDump
    self.executeCheck(902, self.misra_9_2, cfg)
  File "/usr/local/share/Cppcheck/addons/misra.py", line 4246, in executeCheck
    check_function(*args)
  File "/usr/local/share/Cppcheck/addons/misra.py", line 2104, in misra_9_2
    misra_9.misra_9_x(self, data, 902)
  File "/usr/local/share/Cppcheck/addons/misra_9.py", line 414, in misra_9_x
    parser.parseInitializer(ed, eq.astOperand2)
  File "/usr/local/share/Cppcheck/addons/misra_9.py", line 320, in parseInitializer
    child = self.root.getChildByValueElement(self.ed)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'getChildByValueElement'
```

A minimal example and testcase is added. 
The extra check for nextChild seems to fix it, however i did not read
the whole codebase, so maybe this creates other issues.

---------

Co-authored-by: Tim Blume <tbl@sevenstax-intern.de>
 		2023-08-31 09:38:03 +02:00
..
doc Addons: Add README (#2047) 2019-07-28 07:51:03 +02:00
test fix crash while checking misra_9 when initializing a union with {{0,0}} (#5250) 2023-08-31 09:38:03 +02:00
README.md Remove CERT addon from open source Cppcheck. The plan is to provide complete CERT C checking in Cppcheck Premium during this year. 2022-03-23 20:30:43 +01:00
ROS_naming.json Feature/ros naming check (#1511) 2019-01-09 18:16:51 +01:00
__init__.py misra.py: Fix up and improve load rules parser. (#1895) 2019-06-17 21:17:29 +02:00
cppcheck.py Typos found by running "codespell" (#3463) 2021-09-20 19:51:38 +02:00
cppcheckdata.doxyfile Fix some typos in comments (found by codespell) 2016-11-27 11:40:42 +01:00
cppcheckdata.py Update cppcheckdata.py (#5149) 2023-06-15 20:42:58 +02:00
findcasts.py Dont require __main__ for an addon (#3363) 2021-08-12 20:17:51 +02:00
misc.py Addons: Reuse cppcheckdata.simpleMatch 2020-11-11 14:24:55 +01:00
misra.py Fix #11877 FP misra 10.4 On array member comparison (#5342) 2023-08-22 12:18:12 +02:00
misra_9.py fix crash while checking misra_9 when initializing a union with {{0,0}} (#5250) 2023-08-31 09:38:03 +02:00
naming.json Feature/ros naming check (#1511) 2019-01-09 18:16:51 +01:00
naming.py Ignore copy/move constructors for function naming checks (#4134) 2022-06-01 06:54:31 +02:00
namingng.py Ignore copy/move constructors for function naming checks (#4134) 2022-06-01 06:54:31 +02:00
runaddon.py Dont require __main__ for an addon (#3363) 2021-08-12 20:17:51 +02:00
threadsafety.py threadsafety.py: cleanup (#5132) 2023-06-08 19:58:11 +02:00
y2038.py y2038.py: some fixes for obsolete code in y2038.py (#5131) 2023-06-08 14:44:05 +02:00

README.md

Cppcheck addons

Addons are scripts that analyses Cppcheck dump files to check compatibility with secure coding standards and to locate various issues.

Supported addons

  • misra.py Used to verify compliance with MISRA C 2012 - a proprietary set of guidelines to avoid such questionable code, developed for embedded systems. Since this standard is proprietary, cppcheck does not display error text by specifying only the number of violated rules (for example, [c2012-21.3]). If you want to display full texts for violated rules, you will need to create a text file containing MISRA rules, which you will have to pass when calling the script with --rule-texts key. Some examples of rule texts files available in tests directory.
  • y2038.py Checks Linux system for year 2038 problem safety. This required modified environment. See complete description here.
  • threadsafety.py Analyse Cppcheck dump files to locate threadsafety issues like static local objects used by multiple threads.

Usage

Command line interface

cppcheck --addon=misc src/test.c

It is also possible to call scripts as follows:

cppcheck --dump --quiet src/test.c
python misc.py src/test.c.dump
python misra.py --rule-texts=~/misra_rules.txt src/test.c.dump

This allows you to add additional parameters when calling the script (for example, --rule-texts for misra.py). The full list of available parameters can be found by calling any script with the --help flag.

GUI

When using the graphical interface cppcheck-gui, the selection and configuration of addons is carried out on the tab Addons and tools in the project settings (Edit Project File):

Screenshot