No code change, only move code from signal.c to
ppc/signal.c, except adding includes and
exporting setup_frame() and setup_rt_frame().
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-20-laurent@vivier.eu>