gcc/libf2c/libF77/setsig.c

/* Set up the signal behavior.  */

#include <stdio.h>
#include "signal1.h"

#ifndef SIGIOT
#ifdef SIGABRT
#define SIGIOT SIGABRT
#endif
#endif

#include <stdlib.h>

extern void sig_die (char *, int);

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


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
}