the two GNU functions, should use const input pointer parameter. https://refspecs.linuxfoundation.org/LSB_1.3.0/gLSB/gLSB/baselib-sigorset.html https://refspecs.linuxfoundation.org/LSB_1.3.0/gLSB/gLSB/baselib-sigandset.html Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>