memory-analysis

Testing & Quality

Embedded memory analysis, optimization, and leak detection

QUICK START

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Source SKILL.md: https://github.com/a5c-ai/babysitter/blob/HEAD/library/specializations/embedded-systems/skills/memory-analysis/SKILL.md

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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

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