CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2017/10/14 04:17:09
Modified files:
sys/kern : sys_process.c
Log message:
Split sys_ptrace() by request type:
- control operations: trace_me, attach, detach, step, kill, continue.
Manipulate process relation/state or send a signal
- kernel-state get/set: thread list, event mask, trace state.
About the process and don't require target to be stopped, need copyin/out
- user-state get/set: memory, register, window cookie.
Often thread-specific, require target to be stopped, need copyin/out
sys_ptrace() changes to handle request checking, copyin/out to
kernel buffers with size check and zeroing, and dispatching to the
routines above for the real work. This simplfies the permission checks
and copyin/out handling and will simplify lock handling in the future.
Inspired in part by FreeBSD.
ok mpi@ visa@
