Debugging

This page contains a collection of guides on how to debug problems with NuttX.

• GDB with Python
  • Introduction
  • Usage
  • How to write a GDB python script
  • Requirements
    • irqinfo
      • Syntax
      • Example
• How to debug NuttX using QEMU and GDB
  • Compiling
  • Start QEMU
  • Start GDB to connect to QEMU
• gdbserver
  • Introduction
  • Usage
  • Log Example
  • Raw file Example
  • Coredump Example
  • Thread awarenes
  • How to add new architecture
• Debugging ELF Loadable Modules
  • 1. Get ELF Module Load Address
  • 2. Make the ELF Module Wait for You
  • 3. Start the Debugger
  • 4. Load Offset Symbols
  • 5. And Debug
  • An Easier Way?
• Task Trace
  • Task Trace User Guide
    • Installation
      • Install Trace Compass
      • NuttX kernel configuration
    • How to get trace data
      • Quick Guide
        • Getting the trace
        • Displaying the trace result
    • Trace command description
      • trace start
      • trace stop
      • trace cmd
      • trace dump
      • trace mode
      • trace syscall
      • trace irq
  • Task Trace Internals
    • Overview
      • NuttX kernel events collection
      • Filter logic (nuttx/sched/sched_note.c)
      • Noteram device driver (nuttx/drivers/note/noteram_driver.c)
      • Notectl device driver (nuttx/drivers/note/notectl_driver.c)
      • “trace” Built-In Application (apps/system/trace/trace.c)
    • Getting the system call events
      • FLAT build
      • PROTECTED/KERNEL build
• The Kernel Address Sanitizer (KASAN)
  • Overview
  • Support
    • Architectures
  • Usage
  • Implementation details
  • For developers
    • Ignoring accesses
• Core Dump
  • Overview
    • How to use
• Coresight - HW Assisted Tracing on ARM
  • Overview
  • Acronyms and Classification
  • Framework and implementation
• Stack Overflow Check
  • Overview
  • Support
  • Stack Overflow Software Check During Function Call
  • Stack Overflow Software Check During Context Switching
  • Stack Overflow Hardware Check
  • Stack Canary Check
• Run time stack statistics
  • Introduce
  • Configuration
  • Example
  • Implementation details
  • Notice
• Disabling the Stack Dump During Debugging
• Debugging / flashing NuttX on ARM with hardware debugger (JTAG/SWD)
  • What’s the problem?
  • Solution
    • Work-around
• Analyzing Cortex-M Hardfaults
  • Analyzing the Register Dump
  • Analyzing the Stack Dump
    • The Task Stack
    • The Interrupt Stack
    • Full Stack Analysis
  • Recovering State at the Time of the Hardfault
• ATM64 MTE extension
  • Introduction
  • Principle
  • Architectural Details
  • Usage