Some of the procstat tests start a program "while1" and examine the process
using procstat, but did not wait properly for it to start (kill -0 will
succeed immediately after the child process has been created).
Instead, have "while1" write something when it starts, and use a fifo to
wait for that.
PR: 233587, 233588
Reviewed by: ngie
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D21519
Previous spellings of my name (NGie, Ngie) weren't my legal spelling. Use Enji
instead for clarity.
While here, remove "All Rights Reserved" from copyrights I "own".
MFC after: 1 week
These tests query a running process for information related to the -b,
-c, -e, and -f flags; the -f testcase is largely stubbed out, pending
additional work to determine a good, deterministic descriptor.
Core file test support is coming soon--it requires a bit more effort
due to the fact that:
- coredumps can be disabled (kern.coredump=0).
- corefiles can be put in different directories than the current
directory, or be named something other than `<prog>.core`
(`kern.corefile`).
MFC after: 2 months
Sponsored by: Dell EMC Isilon
