1991/0705/power/trap.c (diff list | history)

1991/0625/sys/src/9/power/trap.c:84,89 – 1991/0705/sys/src/9/power/trap.c:84,90 (short | long | prev | next)
1990/0227		user = ur->status&KUP; if(u) u->p->pc = ur->pc; /* BUG */
1991/0705
1990/0227		switch(ecode){ case CINT: if(u && u->p->state==Running){
1991/0625/sys/src/9/power/trap.c:142,149 – 1991/0705/sys/src/9/power/trap.c:143,150
1990/0722		}
1990/0227		Default: /* * This isn't good enough; can still deadlock because we may hold print's locks * in this processor.
1991/0705		* This isn't good enough; can still deadlock because we may * hold print's locks in this processor.
1990/0227		*/ if(user){ spllo();
1991/0625/sys/src/9/power/trap.c:150,156 – 1991/0705/sys/src/9/power/trap.c:151,157
1990/0227		if(ecode == FPEXC)
1990/1110		sprint(buf, "sys: fp: %s FCR31 %lux", fpexcname(x), x);
1990/0227		else
1990/1110		sprint(buf, "sys: trap: %s[%d]", excname[ecode], m->machno);
1991/0705		sprint(buf, "sys: %s pc=0x%lux", excname[ecode], ur->pc);
1991/0425
1990/0227		postnote(u->p, 1, buf, NDebug); }else{
1991/0625/sys/src/9/power/trap.c:163,170 – 1991/0705/sys/src/9/power/trap.c:164,177
1990/0227		exit(); } } if(user && u->nnote) notify(ur);
1991/0705		if(user) { if(u->p->procctl) procctl(u->p); if(u->nnote) notify(ur); }
1990/0227		splhi(); if(user && u && u->p->fpstate == FPinactive) {
1991/0314		restfpregs(&u->fpsave, u->fpsave.fpstatus);
1991/0625/sys/src/9/power/trap.c:383,388 – 1991/0705/sys/src/9/power/trap.c:390,402
1991/0503		u->svstatus = ur->status;
1990/0816		sp = ur->usp;
1990/0227		sp -= sizeof(Ureg);
1991/0705		if(waserror()){ pprint("suicide: trap in notify\n"); pexit("Suicide", 0); } validaddr((ulong)u->notify, 1, 0); validaddr(sp-ERRLEN-3*BY2WD, sizeof(Ureg)+ERRLEN-3*BY2WD, 0); poperror();
1990/0227		u->ureg = (void*)sp;
1991/0318		memmove((Ureg*)sp, ur, sizeof(Ureg));
1990/0227		sp -= ERRLEN;
1991/0625/sys/src/9/power/trap.c:442,449 – 1991/0705/sys/src/9/power/trap.c:456,464
1990/0227		Syscall sysdup, syserrstr, sysexec, sysexits, sysfork, sysforkpgrp;
1990/11211		Syscall sysfstat, sysfwstat, sysgetpid, sysmount, sysnoted;
1990/0227		Syscall sysnotify, sysopen, syspipe, sysr1, sysread, sysremove, sysseek;
1991/0606		Syscall syssleep, sysstat, syswait, syswrite, syswstat, sysalarm, syslkbrk_;
1991/0621		#define LKBRK_ 12
1991/0705		Syscall syssleep, sysstat, syswait, syswrite, syswstat, sysalarm, syssegbrk; Syscall syssegattach, syssegdetach, syssegfree, syssegflush;
1990/0227		Syscall *systab[]={ [SYSR1] sysr1,
1990/11211		[ERRSTR] syserrstr,
1991/0625/sys/src/9/power/trap.c:457,463 – 1991/0705/sys/src/9/power/trap.c:472,478
1990/0227		[FORK] sysfork, [FORKPGRP] sysforkpgrp, [FSTAT] sysfstat,
1991/0606		[LKBRK_] syslkbrk_,
1991/0705		[SEGBRK] syssegbrk,
1990/0227		[MOUNT] sysmount, [OPEN] sysopen, [READ] sysread,
1991/0625/sys/src/9/power/trap.c:475,480 – 1991/0705/sys/src/9/power/trap.c:490,499
1990/0227		[FWSTAT] sysfwstat, [NOTIFY] sysnotify, [NOTED] sysnoted,
1991/0705		[SEGATTACH] syssegattach, [SEGDETACH] syssegdetach, [SEGFREE] syssegfree, [SEGFLUSH] syssegflush,
1990/0227		}; long
1991/0625/sys/src/9/power/trap.c:502,507 – 1991/0705/sys/src/9/power/trap.c:521,530
1990/0227		ur->status &= ~CU1; } spllo();
1991/0705		if(u->p->procctl) procctl(u->p);
1990/0227		r1 = ur->r1; sp = ur->sp; u->nerrlab = 0;
1991/0625/sys/src/9/power/trap.c:527,532 – 1991/0705/sys/src/9/power/trap.c:550,559
1990/0511		}
1990/0227		ur->pc += 4; u->nerrlab = 0;
1991/0705		if(u->p->procctl) procctl(u->p);
1990/0227		splhi();
1990/03091		u->p->insyscall = 0;
1990/0227		if(r1 == NOTED) /* ugly hack */
1991/0625/sys/src/9/power/trap.c:535,540 – 1991/0705/sys/src/9/power/trap.c:562,568
1990/0227		ur->r1 = ret; notify(ur); }
1991/0705
1990/0227		return ret; }