Before diving into specific commands, you need to know how to explore what's available in your particular VxWorks image. Different builds may have different components included, so always start here:
: Inspects specific properties of kernel objects like semaphores, message queues, or tasks. Advanced Task Tracing
| Command | Description | |---------|-------------| | d <address> [,width] [,count] | Display memory (hex/ASCII) – e.g., d 0x1000, 4, 32 | | m <address> <value> | Modify memory byte (use mh for half-word, mw for word) | | fill <start> <end> <value> | Fill memory range with a byte value | | copy <src> <dst> <len> | Copy memory | | search <start> <end> <pattern> | Search memory for a byte pattern | | checkStack <taskId> | Check stack overflow/usage of a task | vxworks command cheat sheet
Interprets standard C expressions and function calls directly.
Best practice: consult BSP docs for device naming conventions; use symbol and object inspections to debug module load failures. Before diving into specific commands, you need to
memShow – Displays a summary of allocated and free memory blocks in the system partition.
: Prints the full absolute path of the current directory. Best practice: consult BSP docs for device naming
memset , , – Fills a block of memory with a specific byte value. Execution Control & Hooking
VxWorks is not Linux. You cannot grep , awk , or systemctl . But its real-time shell is one of the most powerful debugging environments in existence. You have direct, cycle-accurate control over memory, tasks, and devices.
