Perror_printf
Perror_printf(P, errfmt, addr, strerror(err));
Perror_printf(P, incfmt, sig, info);
Perror_printf(P, msgfmt, addr);
Perror_printf(P, "core file may be corrupt -- data for mapping "
extern void Perror_printf(struct ps_prochandle *P, const char *format, ...);