| File | Function |
|---|---|
| services/system/ker/kertrace.h | Trace Macros |
| services/system/ker/externs.h | Trace Global Variables |
| services/system/ker/ker_trace.c | ker_trace_event() kernel call and support routines |
| services/system/ker/nano_trace.c | add_trace_event() gear and event handlers |
| services/system/ker/ker_call_table.c | Kernel Call Trampolines |
Here is a fairly old document, but it is still relevent...