CVS commit: src/tests/lib/libc/sys

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

Module Name:    src
Committed By:   kamil
Date:           Sat Apr 28 19:00:26 UTC 2018

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

Log Message:
Enable traceme_raise1 in the ATF ptrace(2) tests

This test checks raise(SIGKILL). If we enter the kernel with this signal
we report a signaled child in a debugger, not stopped with an option to
make an action.

FreeBSD behaves differently and allows intercepting this event in a tracer.
Follow the Linux behavior.

If we really want to prevent raise(SIGKILL) from signaling the tracee, we
still can breakpoint raise(3) and alter the syscall arguments (or use
the PT_SYSCALL mode). If we are already in the kernel, SIGKILL always means
killing the process, whether or not traced and the source of SIGKILL.

This tests passes on NetBSD without kernel changes.

Sponsored by <The NetBSD Foundation>


To generate a diff of this commit:
cvs rdiff -u -r1.35 -r1.36 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.