SIG_ERR            79 arch/parisc/include/uapi/asm/signal.h #define SIG_ERR	((__sighandler_t)-1)	/* error return from signal */
SIG_ERR            26 include/uapi/asm-generic/signal-defs.h #define SIG_ERR	((__force __sighandler_t)-1)	/* error return from signal */