Based on auditing all the signals and source trees for Hurd and
Linux...
SIGSYS - This is not used for a bad system call (ENOSYS is used
for that). This is used by SECCOMP and some cases where an invalid
sub-function was requested.
SIGSTKFLT - Note it used to be a coprocessor stack fault but is now
obsolete and available for general user use.
SIGLOST - Hurd only now; note that its original purpose as an NFS
lock lost signal is obsolete.
SIGPWR - Note this is for power lost *and* power restored, and is
more a user-mode signal than a kernel-generated signal.
projects / thirdparty / glibc.git / commit
