Agent skill

memory-analysis

Embedded memory analysis, optimization, and leak detection

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/a5c-ai/babysitter/tree/main/library/specializations/embedded-systems/skills/memory-analysis

SKILL.md

Memory Analysis Skill

Overview

This skill provides comprehensive memory analysis capabilities for embedded systems, including linker map analysis, stack usage estimation, heap fragmentation detection, and memory optimization strategies.

Capabilities

Linker Map Analysis

  • Map file parsing and interpretation
  • Symbol size analysis
  • Section size breakdown
  • Memory region utilization
  • Unused symbol detection
  • Cross-reference analysis

Stack Analysis

  • Static stack usage analysis
  • Call graph generation
  • Worst-case stack depth calculation
  • Per-function stack usage
  • Interrupt stack analysis
  • Stack overflow detection strategies

Heap Analysis

  • Heap fragmentation analysis
  • Allocation pattern analysis
  • Memory pool sizing
  • Leak detection strategies
  • Peak usage tracking
  • Block size distribution

Memory Optimization

  • Section placement optimization
  • Flash vs RAM trade-offs
  • Const correctness enforcement
  • String pooling strategies
  • Data structure packing
  • Alignment optimization

Memory Protection

  • MPU region configuration
  • Stack guard implementation
  • Buffer overflow protection
  • Memory isolation strategies

Tooling Integration

  • GCC map file analysis
  • ARM Compiler map files
  • Puncover integration
  • Static analysis integration
  • objdump/readelf usage

Target Processes

  • memory-architecture-planning.js - Memory layout design
  • code-size-optimization.js - Size reduction strategies
  • execution-speed-profiling.js - Memory access optimization
  • bootloader-implementation.js - Multi-image memory layout

Dependencies

  • Linker map file parsers
  • Stack analysis tools (Puncover, GCC stack analysis)
  • objdump, readelf, nm utilities

Usage Context

This skill is invoked when tasks require:

  • Memory usage optimization
  • Stack size determination
  • Heap configuration design
  • Memory leak investigation
  • Code size reduction

Analysis Outputs

Map File Summary

Section          Size      Used      Free   Usage
.text          128 KB    98.5 KB   29.5 KB  76.9%
.rodata         32 KB    24.2 KB    7.8 KB  75.6%
.data            8 KB     2.1 KB    5.9 KB  26.2%
.bss            16 KB    12.4 KB    3.6 KB  77.5%

Stack Analysis

Function             Stack   Depth   Total
main                   64       1      64
process_data          128       2     192
parse_message         256       3     448
handle_packet          96       4     544

Configuration

yaml
memory_analysis:
  map_file: build/firmware.map
  stack_analysis: enabled
  heap_tracking: enabled
  warning_threshold: 85  # percent
  tools:
    - puncover
    - gcc-stack-analyzer

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