tree b81f0552d30d52629acb95510bd80bcc77c4ab1f
parent 2678c90f7d98a962badfe4bb736a26fb21485c7e
author Greg Hackmann <ghackmann@google.com> 1456778133 -0800
committer Elliott Hughes <enh@google.com> 1459812809 -0700

Add SysV signal handling

Implement the legacy SysV signal handling functions sighold(),
sigignore(), sigpause(), sigrelse(), and sigset() in terms of the newer
POSIX signal APIs.  As of POSIX 2013 the SysV signal APIs are deprecated
but still required.

Change-Id: I4ca40e3d706605a7d1a30dc76c78b2b24586387d
Signed-off-by: Greg Hackmann <ghackmann@google.com>