Misra C Analysis

MISRA C Static Analysis Skill

Overview

This skill provides MISRA C compliance checking and static analysis integration for safety-critical embedded software development, ensuring code quality and standard compliance.

Capabilities

MISRA C:2012 Compliance

• Full rule set checking
• Mandatory rules enforcement
• Required rules verification
• Advisory rules analysis
• Directive compliance checking

Static Analysis Integration

• PC-lint/PC-lint Plus integration
• Cppcheck configuration and usage
• Coverity static analysis
• Polyspace integration
• LDRA integration
• Parasoft C/C++test

Violation Management

• Violation categorization
• Severity classification
• Suppression management
• False positive tracking
• Trend analysis

Deviation Handling

• Deviation record generation
• Justification documentation
• Risk assessment documentation
• Approval workflow support
• Traceability maintenance

Additional Standards

• CERT C guideline checking
• CWE weakness detection
• AUTOSAR C++14 (where applicable)
• IEC 61508 coding standards
• DO-178C coding standards

Reporting

• Compliance reports generation
• Trend and metrics dashboards
• CI/CD integration reports
• Certification documentation

Target Processes

• misra-c-compliance.js - MISRA C compliance checking
• functional-safety-certification.js - Safety standard compliance
• device-driver-development.js - Driver code quality

Dependencies

• Static analysis tools (PC-lint, Cppcheck, Coverity, Polyspace)
• MISRA C:2012 guidelines document
• Rule configuration files

Usage Context

This skill is invoked when tasks require:

• MISRA C compliance checking
• Static analysis configuration
• Deviation documentation
• Coding standard enforcement
• Safety certification support

Rule Categories

Mandatory Rules (143 rules)

Must always be followed; no deviations permitted.

Required Rules (32 rules)

Must be followed unless formally deviated with documented justification.

Advisory Rules (39 rules)

Should be followed; deviations need documentation but less formal.

Directives (16 directives)

Guidelines that cannot be fully verified by static analysis.

Configuration Example

PC-lint Configuration (au-misra3.lnt)

// MISRA C:2012 configuration
+e9*, +e1*, +e2*, +e3*
-append(9001,[MISRA 2012 Rule 1.1, required])
-append(9002,[MISRA 2012 Rule 1.2, advisory])

Cppcheck MISRA Configuration

<misra>
  <rule number="1.1" severity="error"/>
  <rule number="1.2" severity="warning"/>
  <suppress rule="15.5" file="legacy/*.c"/>
</misra>

Deviation Record Template

## Deviation Record DR-001

**Rule**: MISRA C:2012 Rule X.Y
**Location**: file.c, line 123
**Justification**: [Technical reason for deviation]
**Risk Assessment**: [Impact and mitigation]
**Approval**: [Approver name and date]