-static char sccsid[] = " dosig.c 4.1 82/05/12 ";
+static char sccsid[] = "@(#)dosig.c 4.2 83/07/31";
-#define FBSD
-/* Handle signal trapping from version 6 or version 7 compatability
- * mode programs.
+/*
+ * Handle signal trapping from version 6 or
+ * version 7 compatability mode programs.
* Art Wetzel November 1979
*/
+
#ifdef TRACE
#include <stdio.h>
#endif
#include <signal.h>
#include "defs.h"
+
unsigned int sigvals[NSIG+1];
+
/* actual catch point for all signals */
-#ifdef FBSD
-sigcatch(signum,faultcode,myaddr,stpc,stps) int signum;
-#else
-sigcatch(signum) int signum;
-#endif
+sigcatch(signum, faultcode, scp)
+ int signum, faultcode;
+ struct sigcontext *scp;
{
unsigned short *pcptr;
extern getregs();
return(0);
}
/* figure out the pc */
-#ifdef FBSD
- pcptr = (unsigned short *) &stpc;
-#else
- pcptr = (unsigned short *)((char *)&pcptr + 20);
-#endif
+ pcptr = (unsigned short *) &scp->sc_pc;
pc = (unsigned short *) *pcptr;
/* get the psl with condition codes */
- /* requires UNIX-32V patch to not clear out condition codes */
-#ifdef FBSD
- psl = 0x83c00000 | (stps & 017);
-#else
- psl = 0x83c00000 | (*(pcptr - 6) & 017);
-#endif
+ psl = 0x83c00000 | (scp->sc_ps & 017);
/* actually do the thing */
- if(sigvals[signum] != (unsigned int)SIG_DFL && (sigvals[signum] & (unsigned int)SIG_IGN) == 0)
+ if (sigvals[signum] != (unsigned int)SIG_DFL &&
+ (sigvals[signum] & (unsigned int)SIG_IGN) == 0)
dosig(signum, pc);
/* go back to compatability mode and the signal routine there */
+ sigsetmask(scp->sc_mask);
incompat++;
compat();
}
+
/* routine to set up pdp11 space for return from a signal */
-dosig(signum, from) {
+dosig(signum, from)
+ int signum, from;
+{
unsigned short *sp;
+
#ifdef TRACE
fprintf(stderr,"Caught sig %d from 0%o -> 0%o\n",signum,(pc-1),*(pc-1));
#endif
regs[6] = (unsigned short)(int)sp;
/* reset pc to signal catching routine */
pc = (unsigned short *)sigvals[signum];
+ signal(signum, SIG_DFL);
}