10080 smatch Makefile changes for usr/src/cmd

@@ -20,10 +20,11 @@
 #
 #
 # Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
 # Copyright 2012 Milan Jurik. All rights reserved.
 # Copyright 2016 Toomas Soome <tsoome@me.com>
+# Copyright (c) 2018, Joyent, Inc.
 #
 
 PROG = svc.startd
 OBJS = \
         contract.o \

@@ -70,10 +71,13 @@
 CERRWARN += -_gcc=-Wno-parentheses
 CERRWARN += -_gcc=-Wno-unused-label
 CERRWARN += -_gcc=-Wno-switch
 CERRWARN += -_gcc=-Wno-uninitialized
 
+# these look like real bugs here, but ...
+SMOFF += impossible_mask,signed_integer_overflow_check
+
 $(OBJS) := CPPFLAGS += -D_FILE_OFFSET_BITS=64 -D_REENTRANT
 
 proc.o := CPPFLAGS += -D_REENTRANT
 
 %.o:    ../common/%.c