1991/1218/gnot/trap.c (diff list | history)

1991/12171/sys/src/9/gnot/trap.c:40,52 – 1991/1218/sys/src/9/gnot/trap.c:40,52 (short | long | prev | next)
1990/03091		"illegal instruction", "zero divide", "chk, chk2 instruction",
1991/12171		"fp: trapcc or cp:trapcc instruction",
1991/1218		"trapcc instruction",
1990/03091		"privilege violation", "trace", "line 1010 emulator", "line 1111 emulator", "reserved",
1991/12171		"fp: or cp: coprocessor protocol violation",
1991/1218		"coprocessor protocol violation",
1990/03091		"format error", "uninitialized interrupt", "unassigned 0x40",
1991/12171/sys/src/9/gnot/trap.c:68,79 – 1991/1218/sys/src/9/gnot/trap.c:68,79
1990/03091		};
1991/12171		char *fptrapname[]={ [49-49] "fp: inexact result", [50-49] "fp: divide by zero", [51-49] "fp: underflow", [52-49] "fp: operand error", [53-49] "fp: overflow", [54-49] "fp: signaling NaN",
1991/1218		[49-49] "inexact result", [50-49] "divide by zero", [51-49] "underflow", [52-49] "operand error", [53-49] "overflow", [54-49] "signaling NaN",
1991/12171		};
1990/03091		char*
1991/12171/sys/src/9/gnot/trap.c:87,96 – 1991/1218/sys/src/9/gnot/trap.c:87,99
1991/1113		/* special case, and pc will be o.k. */ if(vo==4 && *(ushort*)pc==0x4848) return "breakpoint";
1990/03091		return trapname[vo];
1991/1218		sprint(buf, "trap: %s", trapname[vo]); return buf;
1991/1113		}
1991/12171		if(49<=vo && vo<=54) return fptrapname[vo-49];
1991/1218		if(49<=vo && vo<=54){ sprint(buf, "fp: %s", fptrapname[vo-49]); return buf; }
1990/03091		sprint(buf, "offset 0x%ux", vo<<2); return buf; }
1991/12171/sys/src/9/gnot/trap.c:108,114 – 1991/1218/sys/src/9/gnot/trap.c:111,117
1991/1112		u->dbgreg = ur; }
1990/03091		if(user){
1991/1113		sprint(buf, "sys: %s pc=0x%lux", excname(ur->vo, ur->pc), ur->pc);
1991/1218		sprint(buf, "sys: %s", excname(ur->vo, ur->pc));
1990/03091		postnote(u->p, 1, buf, NDebug); }else{
1991/1113		print("kernel trap %s pc=0x%lux\n", excname(ur->vo, ur->pc), ur->pc);
1991/12171/sys/src/9/gnot/trap.c:156,162 – 1991/1218/sys/src/9/gnot/trap.c:159,167
1990/03091		void notify(Ureg *ur) {
1991/1218		int l;
1991/1114		ulong s, sp;
1991/1218		Note *n;
1990/03091
1991/1112		if(u->p->procctl) procctl(u->p);
1991/12171/sys/src/9/gnot/trap.c:166,177 – 1991/1218/sys/src/9/gnot/trap.c:171,189
1991/1114		s = spllo();
1991/1216		qlock(&u->p->debug);
1991/0727		u->p->notepending = 0;
1990/03091		if(u->note[0].flag!=NUser && (u->notified || u->notify==0)){
1991/1218		n = &u->note[0]; if(strncmp(n->msg, "sys:", 4) == 0){ l = strlen(n->msg); if(l > ERRLEN-15) /* " pc=0x12345678\0" */ l = ERRLEN-15; sprint(n->msg+l, " pc=0x%.8lux", ur->pc); } if(n->flag!=NUser && (u->notified || u->notify==0)){
1990/03091		if(u->note[0].flag == NDebug) pprint("suicide: %s\n", u->note[0].msg);
1991/1218		pprint("suicide: %s\n", n->msg);
1990/03091		Die:
1991/1216		qunlock(&u->p->debug);
1990/03091		pexit(u->note[0].msg, u->note[0].flag!=NDebug);
1991/1218		pexit(n->msg, n->flag!=NDebug);
1990/03091		} if(!u->notified){ if(!u->notify)