| backtrace(9), backtrace_packed(9), backtrace_user(9) | gather the PC and return addresses of a thread's kernel or user call stack |
| backtrace_pack(9), backtrace_unpack(9) | convert a backtrace to and from compact formats |
| copy(9), copyin(9), copyinstr(9), copyout(9), copystr(9) | kernel copy functions |
| fetch(9), fubyte(9), fuibyte(9), fuiword(9), fulong(9), fuulong(9), fuword(9) | fetch data from user-space |
| intro(9) | introduction to system kernel interfaces |
| store(9), subyte(9), suibyte(9), suiword(9), sulong(9), suulong(9), suword(9) | store data to user-space |
| style(9) | kernel source file style guide |