/* Set up the signal behavior. */ #include <stdio.h> #include "signal1.h" #ifndef SIGIOT #ifdef SIGABRT #define SIGIOT SIGABRT #endif #endif #ifndef KR_headers #undef VOID #include <stdlib.h> #endif #ifndef VOID #define VOID void #endif #ifdef __cplusplus extern "C" { #endif #ifdef KR_headers extern VOID sig_die(); #define Int /* int */ #else extern void sig_die(char*, int); #define Int int #endif static VOID sigfdie(Sigarg) { Use_Sigarg; sig_die("Floating Exception", 1); } static VOID sigidie(Sigarg) { Use_Sigarg; sig_die("IOT Trap", 1); } #ifdef SIGQUIT static VOID sigqdie(Sigarg) { Use_Sigarg; sig_die("Quit signal", 1); } #endif static VOID sigindie(Sigarg) { Use_Sigarg; sig_die("Interrupt", 0); } static VOID sigtdie(Sigarg) { Use_Sigarg; sig_die("Killed", 0); } #ifdef SIGTRAP static VOID sigtrdie(Sigarg) { Use_Sigarg; sig_die("Trace trap", 1); } #endif #ifdef __cplusplus } #endif void f_setsig() { signal1(SIGFPE, sigfdie); /* ignore underflow, enable overflow */ #ifdef SIGIOT signal1(SIGIOT, sigidie); #endif #ifdef SIGTRAP signal1(SIGTRAP, sigtrdie); #endif #ifdef SIGQUIT if(signal1(SIGQUIT,sigqdie) == SIG_IGN) signal1(SIGQUIT, SIG_IGN); #endif if(signal1(SIGINT, sigindie) == SIG_IGN) signal1(SIGINT, SIG_IGN); signal1(SIGTERM,sigtdie); #ifdef pdp11 ldfps(01200); /* detect overflow as an exception */ #endif }