CVS commit: src/sys

["Kamil Rytarowski" <kamil%netbsd.org@localhost>]

Module Name:    src
Committed By:   kamil
Date:           Fri Jan 13 23:00:35 UTC 2017

Modified Files:
        src/sys/kern: kern_fork.c sys_ptrace_common.c
        src/sys/sys: proc.h ptrace.h

Log Message:
Add support for PTRACE_VFORK_DONE and stub for PTRACE_VFORK in ptrace(2)

PTRACE_VFORK is supposed to be used to track vfork(2)-like events, when
parent gives birth to new process child and stops till it exits or calls
exec().
Currently PTRACE_VFORK is a stub.

PTRACE_VFORK_DONE is notification to notify a debugger that a parent has
resumed after vfork(2)-like action.
PTRACE_VFORK_DONE throws SIGTRAP with TRAP_CHLD.

Sponsored by <The NetBSD Foundation>


To generate a diff of this commit:
cvs rdiff -u -r1.198 -r1.199 src/sys/kern/kern_fork.c
cvs rdiff -u -r1.8 -r1.9 src/sys/kern/sys_ptrace_common.c
cvs rdiff -u -r1.335 -r1.336 src/sys/sys/proc.h
cvs rdiff -u -r1.52 -r1.53 src/sys/sys/ptrace.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.