When syscall() was asked to perform an unknown syscall, we printed a
message with debug() and then called abort(). Since, recently, the message
from debug() is not visible on the console.

So pass the message directly to abort(), to do the right thing with it.

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Commit 49497bdb added support for clock_gettime through syscall, because one
of the C++ libraries uses it this way. Turns out clock_getres can also be
reached the same way.

Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
Reviewed-by: Nadav Har'El <nyh@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Add copyright statement to the source files in the top-level directory (except the
trivial dummy-shlib.cc).

By the way, I don't think this code really belongs in the top-level directory.

Strangely, C++11's new std::chrono::system_clock::now() (which I wanted
to use in a test case) calls clock_gettime() not through the function,
but with the syscall() interface. So add support for that too.

This is only causing confusion; change all callers to add '\n' explicitly
and drop the optional argument.