CVS commit: src

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

Module Name:    src
Committed By:   kamil
Date:           Sun May 20 03:51:32 UTC 2018

Modified Files:
        src/sys/kern: sys_ptrace_common.c
        src/tests/lib/libc/sys: t_ptrace_wait.c

Log Message:
Fix and enable traceme_signal_nohandler2 in ATF ptrace(2) tests

traceme_signal_nohandler2 checks emitting SIGSTOP to a traced process
with the PT_CONTINUE operation.

The expected behavior is to simulate a behavior of receiving SIGSTOP,
generating SIGCHLD to its parent (in this case the debugger) and ability
to call wait(2)-like function receiving the stopped child event.

The previous behavior was unstopping the process and it has been adjusted
in the kernel code.

FreeBSD keeps unstopping a process for emitting SIGSTOP.
Linux handles this scenario in the same way as NetBSD now.

While there, implement the missing bits in the userland ATF test for
traceme_signal_nohandler2: receiving and validating 2nd SIGSTOP event and
continuing the process, followed by its normal termination.

Sponsored by <The NetBSD Foundation>


To generate a diff of this commit:
cvs rdiff -u -r1.40 -r1.41 src/sys/kern/sys_ptrace_common.c
cvs rdiff -u -r1.47 -r1.48 src/tests/lib/libc/sys/t_ptrace_wait.c

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