CVS commit: src/sys/kern

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

Module Name:    src
Committed By:   kamil
Date:           Mon May 28 13:12:54 UTC 2018

Modified Files:
        src/sys/kern: kern_sig.c

Log Message:
Enhance the signal routing of a trapsignal under a debugger

Stop resetting signal masks for crash signals under a debugger.

If we set a trap (either software or hardware one) in the code, we don't
want to see reset of signal handlers in a traced child as a knock-on effect
in the original code.

Maintain the vfork(2) + ptrace(2) special case functional.

No regressions are observed in ATF ptrace(2) and kernel/t_trapsignal tests.

Sponsored by <The NetBSD Foundation>


To generate a diff of this commit:
cvs rdiff -u -r1.347 -r1.348 src/sys/kern/kern_sig.c

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