Example #1
0
File: cmds.c Project: slewsys/ed
/*
 * copy_lines: Copy a range of lines to after given address. Return status.
 */
int
copy_lines (off_t from, off_t to, off_t after, ed_buffer_t *ed)
{
  ed_line_node_t *lp, *np;
  ed_undo_node_t *up = NULL;
  off_t ci[2];
  int split = (from <= after && after < to);
  int i;

  ci[0] = (split ? after : to) - from + 1;
  ci[1] = (split ? to - after : 0);
  for (i = 0; i < 2; ++i)
    {
      lp = get_line_node (i == 0 ? from : after + 1, ed);
      for (; ci[i]-- > 0; lp = lp->q_forw)
        {
          spl1 ();
          if (!(np = append_line_node (lp->len, lp->seek, after, ed)))
            {
              spl0 ();
              return ERR;
            }
          ed->state->dot = ++after;
          APPEND_UNDO_NODE (np, up, after, ed);
          ed->state->is_modified = 1;
          spl0 ();
        }
    }
  return 0;
}
Example #2
0
File: batt.c Project: abbrev/punix
/* batt_check() returns one of the following values:
 * 7: >4.6V  full
 * 6: >4.5V  ok
 * 5: >4.3V  medium
 * 4: >4.0V  low
 * 3: >3.7V  very low
 * 2: >3.4V  starving
 * 1: >3.2V  almost dead
 * 0: <=3.2V dead (calculator is reset?)
 */
int batt_check()
{
	int x = spl1();
	int i, j;
	BATTCHECK |= 0x09;
	
	for (i = 6; i >= 0; --i) {
		reinit();
		TRIGLEVEL = i << 7;
		for (j = 110; j >= 0; --j) {
			if (!(BATTSTAT & 0x04))
				goto quit;
		};
	};
quit:
	i = 6 - i;
	G.batt_level = i;
	BATTCHECK &= 0xf7;
	reinit();
	BATTCHECK &= 0xf6;
	WAITSTATE = ~0;
	
	showstatus();
	splx(x);
	return G.batt_level;
}
Example #3
0
File: cmds.c Project: slewsys/ed
/*
 * append_lines: Insert text from stdin to after given address; stop
 *   when either a single period is read or EOF. Return status.
 */
int
append_lines (off_t after, ed_buffer_t *ed)
{
  char *s;
  size_t len;
  ed_line_node_t *lp;
  ed_undo_node_t *up = NULL;
  int status;

  ed->state->input_is_binary = 0;
  for (ed->state->dot = after;;)
    {
      if (!ed->exec->global)
        {
          if (!(ed->input = get_stdin_line (&len, ed)))
            {
              /* Permit EOF (i.e., key stroke: CTL + D) at beginning of
                 line as alternative to `.' */
              status = feof (stdin) ? 0 : ERR;
              clearerr (stdin);
              return status;
            }
          if (*(ed->input + len - 1) != '\n')
            {
              ed->exec->err = _("End-of-file unexpected");
              clearerr (stdin);
              return ERR;
            }
          ++ed->exec->line_no;
        }
      else if (*ed->input == '\0')
        return 0;
      if (*ed->input == '.' && *(ed->input + 1) == '\n')
        {
          ++ed->input;
          return 0;
        }
      if (ed->exec->global)
        {
          for (s = ed->input; *s++ != '\n';)
            ;
          len = s - ed->input;
        }
      spl1 ();
      ed->state->is_binary |= ed->state->input_is_binary;
      if (after == ed->state->lines)
        ed->state->newline_appended = 0;
      if (!(ed->input = put_buffer_line (ed->input, len, ed)))
        {
          spl0 ();
          return ERR;
        }
      lp = get_line_node (ed->state->dot, ed);
      APPEND_UNDO_NODE (lp, up, ed->state->dot, ed);
      ed->state->is_empty = 0;
      ed->state->is_modified = 1;
      spl0 ();
    }
  /* NOTREACHED */
}
Example #4
0
int
parsendch(struct par_softc *sc, u_char ch)
{
	int error = 0;
	int s;
	
	/* if either offline, busy or out of paper, wait for that
	   condition to clear */
	s = spl1();
	while (!error
	       && (parsend_pending
		   || !(intio_get_sicilian_intr() & SICILIAN_STAT_PAR)))
	{
		/* wait a second, and try again */
		callout_reset(&intr_callout, hz, parintr, 0);
		partimeout_pending = 1;
		/* this is essentially a flipflop to have us wait for the
		   first character being transmitted when trying to transmit
		   the second, etc. */
		parsend_pending = 0;
		/* it's quite important that a parallel putc can be
		   interrupted, given the possibility to lock a printer
		   in an offline condition.. */
		if ((error = tsleep(parintr, PCATCH|(PZERO-1), "parsendch", 0))) {
#ifdef DEBUG
			if (pardebug & PDB_INTERRUPT)
				printf("parsendch interrupted, error = %d\n", error);
#endif
			if (partimeout_pending)
				callout_stop(&intr_callout);

			partimeout_pending = 0;
		}
	}

	if (!error) {
#ifdef DEBUG
		if (pardebug & PDB_INTERRUPT)
			printf("#%d", ch);
#endif
		bus_space_write_1(sc->sc_bst, sc->sc_bsh, PAR_DATA, ch);
		DELAY(1);	/* (DELAY(1) == 1us) > 0.5us */
		bus_space_write_1(sc->sc_bst, sc->sc_bsh, PAR_STROBE, 0);
		intio_set_sicilian_intr(intio_get_sicilian_intr() |
					 SICILIAN_INTR_PAR);
		DELAY(1);
		bus_space_write_1(sc->sc_bst, sc->sc_bsh, PAR_STROBE, 1);
		parsend_pending = 1;
	}
	
	splx(s);
	
	return error;
}
Example #5
0
File: cmds.c Project: slewsys/ed
/*
 * move_lines: Move a range of lines to after given address. Return status.
 */
int
move_lines (off_t from, off_t to, off_t after, ed_buffer_t *ed)
{
  ed_line_node_t *b1, *a1, *b2, *a2;
  off_t succ = INC_MOD (to, ed->state->lines);
  off_t prec = from - 1;
  int done = (after == from - 1 || after == to);

  spl1 ();
  if (done)
    {
      a2 = get_line_node (succ, ed);
      b2 = get_line_node (prec, ed);
      ed->state->dot = to;
    }
  else if (!append_undo_node (UMOV, prec, succ, ed)
           || !append_undo_node (UMOV, after,
                                 INC_MOD (after, ed->state->lines), ed))
    {
      spl0 ();
      return ERR;
    }
  else
    {
      a1 = get_line_node (succ, ed);
      if (from > after)
        {
          b1 = get_line_node (prec, ed);

          /* this get_line_node last! */
          b2 = get_line_node (after, ed);
        }
      else
        {
          b2 = get_line_node (after, ed);

          /* this get_line_node last! */
          b1 = get_line_node (prec, ed);
        }
      a2 = b2->q_forw;
      LINK_NODES (b2, b1->q_forw);
      LINK_NODES (a1->q_back, a2);
      LINK_NODES (b1, a1);
      ed->state->dot = after + (from > after ? to - from + 1 : 0);
    }
  if (ed->exec->global)
    delete_global_nodes (b2->q_forw, a2, ed);
  ed->state->is_modified = 1;
  spl0 ();
  return 0;
}
Example #6
0
File: glbl.c Project: slewsys/ed
/*
 * next_global_node: Pop node from top of global queue; return line
 *   node pointer.
 */
static ed_line_node_t *
next_global_node (ed_buffer_t *ed)
{
  ed_global_node_t *ap = ed->core->global_head->q_forw;
  ed_line_node_t *lp = ap->lp;

  if (ap != ed->core->global_head)
    {
      spl1 ();
      UNLINK_NODE (ap);
      free (ap);
      spl0 ();
    }
  return lp;
}
Example #7
0
int
parclose(dev_t dev, int flags, int mode, struct lwp *l)
{
	int unit = UNIT(dev);
	int s;
	struct par_softc *sc = device_lookup_private(&par_cd, unit);
	
	sc->sc_flags &= ~(PARF_OPEN|PARF_OWRITE);

	/* don't allow interrupts any longer */
	s = spl1();
	intio_set_sicilian_intr(intio_get_sicilian_intr() &
				~SICILIAN_INTR_PAR);
	splx(s);

	return (0);
}
Example #8
0
void
drsc_handler(void)
{
	struct siop_softc *sc = drsc_softc;

	siop_regmap_p rp;
	int istat;

	if (sc->sc_flags & SIOP_INTSOFF)
		return;		/* interrupts are not active */

	rp = sc->sc_siopp;
	istat = rp->siop_istat;

	if ((istat & (SIOP_ISTAT_SIP | SIOP_ISTAT_DIP)) == 0)
		return;

	/*
	 * save interrupt status, DMA status, and SCSI status 0
	 * (may need to deal with stacked interrupts?)
	 */
	sc->sc_sstat0 = rp->siop_sstat0;
	sc->sc_istat = istat;
	sc->sc_dstat = rp->siop_dstat;
	/*
	 * disable interrupts until the callback can process this
	 * interrupt.
	 */
#ifdef DRSC_NOCALLBACK
	(void)spl1();
	siopintr(sc);
#else
	rp->siop_sien = 0;
	rp->siop_dien = 0;
	sc->sc_flags |= SIOP_INTDEFER | SIOP_INTSOFF;
	single_inst_bclr_b(*draco_intpen, DRIRQ_SCSI);
#ifdef DEBUG
	if (*draco_intpen & DRIRQ_SCSI)
		printf("%s: intpen still 0x%x\n", sc->sc_dev.dv_xname,
		    *draco_intpen);
#endif
	add_sicallback((sifunc_t)siopintr, sc, NULL);
#endif
	return;
}
Example #9
0
File: glbl.c Project: slewsys/ed
/* mark_global_nodes: Add lines matching a pattern to global queue. */
int
mark_global_nodes (int want_match, ed_buffer_t *ed)
{
  regmatch_t rm[1];
  regex_t *re;
  ed_line_node_t *lp;
  off_t from = ed->exec->region->start;
  off_t to = ed->exec->region->end;
  off_t n = from ? to - from + 1 : 0;
  char dc = *ed->input;              /* pattern delimiting char */
  char *s;

  spl1 ();
  if (!(re = get_compiled_regex (dc, RE_SEARCH, ed)))
    {
      spl0 ();
      return ERR;
    }
  if (*ed->input == dc && *ed->input != '\n')
    ++ed->input;
  reset_global_queue (ed);
  spl0 ();
  lp = get_line_node (from, ed);
  for (; n; --n, lp = lp->q_forw)
    {
      if (!(s = get_buffer_line (lp, ed)))
        return ERR;
#ifdef REG_STARTEND
      rm->rm_so = 0;
      rm->rm_eo = lp->len;
      if ((!regexec (re, s, 0, rm, REG_STARTEND)) == want_match
          && !append_global_node (lp, ed))
#else
      if (ed->state->is_binary)
        NUL_TO_NEWLINE (s, lp->len);
      if (!regexec (re, s, 0, NULL, 0) == want_match
          && !append_global_node (lp, ed))
#endif  /* !REG_STARTEND */
        return ERR;
    }
  return 0;
}
Example #10
0
File: glbl.c Project: slewsys/ed
/*
 * append_global_node: Append node to end of global queue. Return node
 *   pointer.
 */
static ed_global_node_t *
append_global_node (const ed_line_node_t *lp, ed_buffer_t *ed)
{
  ed_global_node_t *gp;
  ed_global_node_t *tq = ed->core->global_head->q_back;

  spl1 ();
  if (!(gp = (ed_global_node_t *) malloc (ED_GLOBAL_NODE_T_SIZE)))
    {
      fprintf (stderr, "%s\n", strerror (errno));
      ed->exec->err = _("Memory exhausted");
      spl0 ();
      return NULL;
    }
  gp->lp = (ed_line_node_t *) lp;

  /* APPEND_NODE is macro, so tq is mandatory! */
  APPEND_NODE (gp, tq);
  spl0 ();
  return gp;
}
Example #11
0
File: cmds.c Project: slewsys/ed
/*
 * join_lines: Replace a range of lines with the joined text of those lines.
 */
int
join_lines (off_t from, off_t to, ed_buffer_t *ed)
{
  static char *lj = NULL;       /* line join buffer */
  static size_t lj_size;        /* buffer size */

  ed_line_node_t *lp = get_line_node (from, ed);
  off_t n = from ? to - from + 1 : 0;
  size_t len = 0;
  char *s;

  for (; n; --n, lp = lp->q_forw)
    {
      if (!(s = get_buffer_line (lp, ed)))
        return ERR;
      REALLOC_THROW (lj, lj_size, len + lp->len, ERR, ed);
      memcpy (lj + len, s, lp->len);
      len += lp->len;
    }
  REALLOC_THROW (lj, lj_size, len + 2, ERR, ed);
  memcpy (lj + len++, "\n", 2);
  spl1 ();
  if (delete_lines (from, to, ed) < 0)
    {
      spl0 ();
      return ERR;
    }
  ed->state->dot = from - 1;
  if (!put_buffer_line (lj, len, ed)
      || !append_undo_node (UADD, ed->state->dot, ed->state->dot, ed))
    {
      spl0 ();
      return ERR;
    }
  ed->state->is_modified = 1;
  spl0 ();
  return 0;
}
Example #12
0
/*ARGSUSED*/
void
trap(struct frame *fp, int type, unsigned code, unsigned v)
{
	extern char fubail[], subail[];
	struct lwp *l;
	struct proc *p;
	struct pcb *pcb;
	void *onfault;
	ksiginfo_t ksi;
	int s;
	int rv;
	u_quad_t sticks = 0 /* XXX initialiser works around compiler bug */;
	static int panicking __diagused;

	curcpu()->ci_data.cpu_ntrap++;
	l = curlwp;
	p = l->l_proc;
	pcb = lwp_getpcb(l);

	KSI_INIT_TRAP(&ksi);
	ksi.ksi_trap = type & ~T_USER;

	if (USERMODE(fp->f_sr)) {
		type |= T_USER;
		sticks = p->p_sticks;
		l->l_md.md_regs = fp->f_regs;
		LWP_CACHE_CREDS(l, p);
	}
	switch (type) {

	default:
	dopanic:
		/*
		 * Let the kernel debugger see the trap frame that
		 * caused us to panic.  This is a convenience so
		 * one can see registers at the point of failure.
		 */
		s = splhigh();
		panicking = 1;
		printf("trap type %d, code = 0x%x, v = 0x%x\n", type, code, v);
		printf("%s program counter = 0x%x\n",
		    (type & T_USER) ? "user" : "kernel", fp->f_pc);
#ifdef KGDB
		/* If connected, step or cont returns 1 */
		if (kgdb_trap(type, (db_regs_t *)fp))
			goto kgdb_cont;
#endif
#ifdef DDB
		(void)kdb_trap(type, (db_regs_t *)fp);
#endif
#ifdef KGDB
	kgdb_cont:
#endif
		splx(s);
		if (panicstr) {
			printf("trap during panic!\n");
#ifdef DEBUG
			/* XXX should be a machine-dependent hook */
			printf("(press a key)\n"); (void)cngetc();
#endif
		}
		regdump((struct trapframe *)fp, 128);
		type &= ~T_USER;
		if ((u_int)type < trap_types)
			panic(trap_type[type]);
		panic("trap");

	case T_BUSERR:		/* kernel bus error */
		onfault = pcb->pcb_onfault;
		if (onfault == NULL)
			goto dopanic;
		rv = EFAULT;
		/* FALLTHROUGH */

	copyfault:
		/*
		 * If we have arranged to catch this fault in any of the
		 * copy to/from user space routines, set PC to return to
		 * indicated location and set flag informing buserror code
		 * that it may need to clean up stack frame.
		 */
		fp->f_stackadj = exframesize[fp->f_format];
		fp->f_format = fp->f_vector = 0;
		fp->f_pc = (int)onfault;
		fp->f_regs[D0] = rv;
		return;

	case T_BUSERR|T_USER:	/* bus error */
	case T_ADDRERR|T_USER:	/* address error */
		ksi.ksi_addr = (void *)v;
		ksi.ksi_signo = SIGBUS;
		ksi.ksi_code = (type == (T_BUSERR|T_USER)) ?
			BUS_OBJERR : BUS_ADRERR;
		break;

	case T_COPERR:		/* kernel coprocessor violation */
	case T_FMTERR|T_USER:	/* do all RTE errors come in as T_USER? */
	case T_FMTERR:		/* ...just in case... */
	/*
	 * The user has most likely trashed the RTE or FP state info
	 * in the stack frame of a signal handler.
	 */
		printf("pid %d: kernel %s exception\n", p->p_pid,
		       type==T_COPERR ? "coprocessor" : "format");
		type |= T_USER;

		mutex_enter(p->p_lock);
		SIGACTION(p, SIGILL).sa_handler = SIG_DFL;
		sigdelset(&p->p_sigctx.ps_sigignore, SIGILL);
		sigdelset(&p->p_sigctx.ps_sigcatch, SIGILL);
		sigdelset(&l->l_sigmask, SIGILL);
		mutex_exit(p->p_lock);

		ksi.ksi_signo = SIGILL;
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was ILL_RESAD_FAULT */
		ksi.ksi_code = (type == T_COPERR) ?
			ILL_COPROC : ILL_ILLOPC;
		break;

	case T_COPERR|T_USER:	/* user coprocessor violation */
	/* What is a proper response here? */
		ksi.ksi_signo = SIGFPE;
		ksi.ksi_code = FPE_FLTINV;
		break;

	case T_FPERR|T_USER:	/* 68881 exceptions */
	/*
	 * We pass along the 68881 status register which locore stashed
	 * in code for us.
	 */
		ksi.ksi_signo = SIGFPE;
		ksi.ksi_code = fpsr2siginfocode(code);
		break;

#ifdef M68040
	case T_FPEMULI|T_USER:	/* unimplemented FP instruction */
	case T_FPEMULD|T_USER:	/* unimplemented FP data type */
		/* XXX need to FSAVE */
		printf("pid %d(%s): unimplemented FP %s at %x (EA %x)\n",
		       p->p_pid, p->p_comm,
		       fp->f_format == 2 ? "instruction" : "data type",
		       fp->f_pc, fp->f_fmt2.f_iaddr);
		/* XXX need to FRESTORE */
		ksi.ksi_signo = SIGFPE;
		ksi.ksi_code = FPE_FLTINV;
		break;
#endif

	case T_ILLINST|T_USER:	/* illegal instruction fault */
	case T_PRIVINST|T_USER:	/* privileged instruction fault */
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was ILL_PRIVIN_FAULT */
		ksi.ksi_signo = SIGILL;
		ksi.ksi_code = (type == (T_PRIVINST|T_USER)) ?
			ILL_PRVOPC : ILL_ILLOPC;
		break;

	case T_ZERODIV|T_USER:	/* Divide by zero */
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was FPE_INTDIV_TRAP */
		ksi.ksi_signo = SIGFPE;
		ksi.ksi_code = FPE_FLTDIV;
		break;

	case T_CHKINST|T_USER:	/* CHK instruction trap */
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was FPE_SUBRNG_TRAP */
		ksi.ksi_signo = SIGFPE;
		break;

	case T_TRAPVINST|T_USER:	/* TRAPV instruction trap */
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was FPE_INTOVF_TRAP */
		ksi.ksi_signo = SIGFPE;
		break;

	/*
	 * XXX: Trace traps are a nightmare.
	 *
	 *	HP-UX uses trap #1 for breakpoints,
	 *	NetBSD/m68k uses trap #2,
	 *	SUN 3.x uses trap #15,
	 *	DDB and KGDB uses trap #15 (for kernel breakpoints;
	 *	handled elsewhere).
	 *
	 * NetBSD and HP-UX traps both get mapped by locore.s into T_TRACE.
	 * SUN 3.x traps get passed through as T_TRAP15 and are not really
	 * supported yet.
	 *
	 * XXX: We should never get kernel-mode T_TRAP15
	 * XXX: because locore.s now gives them special treatment.
	 */
	case T_TRAP15:		/* kernel breakpoint */
#ifdef DEBUG
		printf("unexpected kernel trace trap, type = %d\n", type);
		printf("program counter = 0x%x\n", fp->f_pc);
#endif
		fp->f_sr &= ~PSL_T;
		return;

	case T_TRACE|T_USER:	/* user trace trap */
#ifdef COMPAT_SUNOS
		/*
		 * SunOS uses Trap #2 for a "CPU cache flush".
		 * Just flush the on-chip caches and return.
		 */
		if (p->p_emul == &emul_sunos) {
			ICIA();
			DCIU();
			return;
		}
#endif
		/* FALLTHROUGH */
	case T_TRACE:		/* tracing a trap instruction */
	case T_TRAP15|T_USER:	/* SUN user trace trap */
		fp->f_sr &= ~PSL_T;
		ksi.ksi_signo = SIGTRAP;
		break;

	case T_ASTFLT:		/* system async trap, cannot happen */
		goto dopanic;

	case T_ASTFLT|T_USER:	/* user async trap */
		astpending = 0;
		/*
		 * We check for software interrupts first.  This is because
		 * they are at a higher level than ASTs, and on a VAX would
		 * interrupt the AST.  We assume that if we are processing
		 * an AST that we must be at IPL0 so we don't bother to
		 * check.  Note that we ensure that we are at least at SIR
		 * IPL while processing the SIR.
		 */
		spl1();
		/* fall into... */

	case T_SSIR:		/* software interrupt */
	case T_SSIR|T_USER:
		/*
		 * If this was not an AST trap, we are all done.
		 */
		if (type != (T_ASTFLT|T_USER)) {
			curcpu()->ci_data.cpu_ntrap--;
			return;
		}
		spl0();
		if (l->l_pflag & LP_OWEUPC) {
			l->l_pflag &= ~LP_OWEUPC;
			ADDUPROF(l);
		}
		if (curcpu()->ci_want_resched)
			preempt();
		goto out;

	case T_MMUFLT:		/* kernel mode page fault */
		/*
		 * If we were doing profiling ticks or other user mode
		 * stuff from interrupt code, Just Say No.
		 */
		onfault = pcb->pcb_onfault;
		if (onfault == fubail || onfault == subail) {
			rv = EFAULT;
			goto copyfault;
		}
		/* fall into ... */

	case T_MMUFLT|T_USER:	/* page fault */
	    {
		vaddr_t va;
		struct vmspace *vm = p->p_vmspace;
		struct vm_map *map;
		vm_prot_t ftype;
		extern struct vm_map *kernel_map;

		onfault = pcb->pcb_onfault;

#ifdef DEBUG
		if ((mmudebug & MDB_WBFOLLOW) || MDB_ISPID(p->p_pid))
		printf("trap: T_MMUFLT pid=%d, code=%x, v=%x, pc=%x, sr=%x\n",
		       p->p_pid, code, v, fp->f_pc, fp->f_sr);
#endif
		/*
		 * It is only a kernel address space fault iff:
		 * 	1. (type & T_USER) == 0  and
		 * 	2. pcb_onfault not set or
		 *	3. pcb_onfault set but supervisor space data fault
		 * The last can occur during an exec() copyin where the
		 * argument space is lazy-allocated.
		 */
		if ((type & T_USER) == 0 && (onfault == NULL || KDFAULT(code)))
			map = kernel_map;
		else {
			map = vm ? &vm->vm_map : kernel_map;
		}

		if (WRFAULT(code))
			ftype = VM_PROT_WRITE;
		else
			ftype = VM_PROT_READ;

		va = trunc_page((vaddr_t)v);

		if (map == kernel_map && va == 0) {
			printf("trap: bad kernel %s access at 0x%x\n",
			    (ftype & VM_PROT_WRITE) ? "read/write" :
			    "read", v);
			goto dopanic;
		}

#ifdef DIAGNOSTIC
		if (interrupt_depth && !panicking) {
			printf("trap: calling uvm_fault() from interrupt!\n");
			goto dopanic;
		}
#endif
		
		pcb->pcb_onfault = NULL;
		rv = uvm_fault(map, va, ftype);
		pcb->pcb_onfault = onfault;
#ifdef DEBUG
		if (rv && MDB_ISPID(p->p_pid))
			printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
			    map, va, ftype, rv);
#endif
		/*
		 * If this was a stack access we keep track of the maximum
		 * accessed stack size.  Also, if vm_fault gets a protection
		 * failure it is due to accessing the stack region outside
		 * the current limit and we need to reflect that as an access
		 * error.
		 */
		if (rv == 0) {
			if (map != kernel_map && (void *)va >= vm->vm_maxsaddr)
				uvm_grow(p, va);

			if (type == T_MMUFLT) {
				if (ucas_ras_check(&fp->F_t)) {
					return;
				}
#ifdef M68040
				if (cputype == CPU_68040)
					(void) writeback(fp, 1);
#endif
				return;
			}
			goto out;
		}
		if (rv == EACCES) {
			ksi.ksi_code = SEGV_ACCERR;
			rv = EFAULT;
		} else
			ksi.ksi_code = SEGV_MAPERR;
		if (type == T_MMUFLT) {
			if (onfault)
				goto copyfault;
			printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
			    map, va, ftype, rv);
			printf("  type %x, code [mmu,,ssw]: %x\n",
			       type, code);
			goto dopanic;
		}
		ksi.ksi_addr = (void *)v;
		switch (rv) {
		case ENOMEM:
			printf("UVM: pid %d (%s), uid %d killed: out of swap\n",
			       p->p_pid, p->p_comm,
			       l->l_cred ?
			       kauth_cred_geteuid(l->l_cred) : -1);
			ksi.ksi_signo = SIGKILL;
			break;
		case EINVAL:
			ksi.ksi_signo = SIGBUS;
			ksi.ksi_code = BUS_ADRERR;
			break;
		case EACCES:
			ksi.ksi_signo = SIGSEGV;
			ksi.ksi_code = SEGV_ACCERR;
			break;
		default:
			ksi.ksi_signo = SIGSEGV;
			ksi.ksi_code = SEGV_MAPERR;
			break;
		}
		break;
	    }
	}
	trapsignal(l, &ksi);
	if ((type & T_USER) == 0)
		return;
out:
	userret(l, fp, sticks, v, 1);
}
Example #13
0
bool ASMu3Dmx::assembleL2matrices (SparseMatrix& A, StdVector& B,
                                   const IntegrandBase& integrand,
                                   bool continuous) const
{
  const int p1 = projBasis->order(0);
  const int p2 = projBasis->order(1);
  const int p3 = projBasis->order(2);

  // Get Gaussian quadrature points
  const int ng1 = continuous ? nGauss : p1 - 1;
  const int ng2 = continuous ? nGauss : p2 - 1;
  const int ng3 = continuous ? nGauss : p3 - 1;
  const double* xg = GaussQuadrature::getCoord(ng1);
  const double* yg = GaussQuadrature::getCoord(ng2);
  const double* zg = GaussQuadrature::getCoord(ng3);
  const double* wg = continuous ? GaussQuadrature::getWeight(nGauss) : nullptr;
  if (!xg || !yg || !zg) return false;
  if (continuous && !wg) return false;

  size_t nnod = this->getNoProjectionNodes();
  double dV = 0.0;
  Vectors phi(2);
  Matrices dNdu(2);
  Matrix sField, Xnod, Jac;
  std::vector<Go::BasisDerivs> spl1(2);
  std::vector<Go::BasisPts> spl0(2);


  // === Assembly loop over all elements in the patch ==========================
  LR::LRSplineVolume* geoVol;
  if (m_basis[geoBasis-1]->nBasisFunctions() == projBasis->nBasisFunctions())
    geoVol = m_basis[geoBasis-1].get();
  else
    geoVol = projBasis.get();

  for (const LR::Element* el1 : geoVol->getAllElements())
  {
    double uh = (el1->umin()+el1->umax())/2.0;
    double vh = (el1->vmin()+el1->vmax())/2.0;
    double wh = (el1->wmin()+el1->wmax())/2.0;
    std::vector<size_t> els;
    els.push_back(projBasis->getElementContaining(uh, vh, wh) + 1);
    els.push_back(m_basis[geoBasis-1]->getElementContaining(uh, vh, wh) + 1);

    if (continuous)
    {
      // Set up control point (nodal) coordinates for current element
      if (!this->getElementCoordinates(Xnod,els[1]))
        return false;
      else if ((dV = 0.25*this->getParametricVolume(els[1])) < 0.0)
        return false; // topology error (probably logic error)
    }

    // Compute parameter values of the Gauss points over this element
    RealArray gpar[3], unstrGpar[3];
    this->getGaussPointParameters(gpar[0],0,ng1,els[1],xg);
    this->getGaussPointParameters(gpar[1],1,ng2,els[1],yg);
    this->getGaussPointParameters(gpar[2],2,ng3,els[1],zg);

    // convert to unstructred mesh representation
    expandTensorGrid(gpar, unstrGpar);

    // Evaluate the secondary solution at all integration points
    if (!this->evalSolution(sField,integrand,unstrGpar))
      return false;

    // set up basis function size (for extractBasis subroutine)
    const LR::Element* elm = projBasis->getElement(els[0]-1);
    phi[0].resize(elm->nBasisFunctions());
    phi[1].resize(el1->nBasisFunctions());
    IntVec lmnpc;
    if (projBasis != m_basis[0]) {
      lmnpc.reserve(phi[0].size());
      for (const LR::Basisfunction* f : elm->support())
        lmnpc.push_back(f->getId());
    }
    const IntVec& mnpc = projBasis == m_basis[0] ? MNPC[els[1]-1] : lmnpc;

    // --- Integration loop over all Gauss points in each direction ----------
    Matrix eA(phi[0].size(), phi[0].size());
    Vectors eB(sField.rows(), Vector(phi[0].size()));
    int ip = 0;
    for (int k = 0; k < ng3; k++)
      for (int j = 0; j < ng2; j++)
        for (int i = 0; i < ng1; i++, ip++)
        {
          if (continuous)
          {
            projBasis->computeBasis(gpar[0][i], gpar[1][j], gpar[2][k],
                                    spl1[0], els[0]-1);
            SplineUtils::extractBasis(spl1[0],phi[0],dNdu[0]);
            m_basis[geoBasis-1]->computeBasis(gpar[0][i], gpar[1][j], gpar[2][k],
                                              spl1[1], els[1]-1);
            SplineUtils::extractBasis(spl1[1], phi[1], dNdu[1]);
          }
          else
          {
            projBasis->computeBasis(gpar[0][i], gpar[1][j], gpar[2][k],
                                    spl0[0], els[0]-1);
            phi[0] = spl0[0].basisValues;
          }

          // Compute the Jacobian inverse and derivatives
          double dJw = 1.0;
          if (continuous)
          {
            dJw = dV*wg[i]*wg[j]*wg[k]*utl::Jacobian(Jac,dNdu[1],Xnod,dNdu[1],false);
            if (dJw == 0.0) continue; // skip singular points
          }

          // Integrate the mass matrix
          eA.outer_product(phi[0], phi[0], true, dJw);

          // Integrate the rhs vector B
          for (size_t r = 1; r <= sField.rows(); r++)
            eB[r-1].add(phi[0],sField(r,ip+1)*dJw);
        }

    for (size_t i = 0; i < eA.rows(); ++i) {
      for (size_t j = 0; j < eA.cols(); ++j)
        A(mnpc[i]+1, mnpc[j]+1) += eA(i+1,j+1);

      int jp = mnpc[i]+1;
      for (size_t r = 0; r < sField.rows(); r++, jp += nnod)
        B(jp) += eB[r](1+i);
    }
  }

  return true;
}
Example #14
0
/*ARGSUSED*/
void
trap(struct frame *fp, int type, u_int code, u_int v)
{
	extern char fubail[], subail[];
	struct lwp *l;
	struct proc *p;
	ksiginfo_t ksi;
	int s;
	u_quad_t sticks;

	uvmexp.traps++;
	l = curlwp;

	KSI_INIT_TRAP(&ksi);
	ksi.ksi_trap = type & ~T_USER;

	p = l->l_proc;

	if (USERMODE(fp->f_sr)) {
		type |= T_USER;
		sticks = p->p_sticks;
		l->l_md.md_regs = fp->f_regs;
		LWP_CACHE_CREDS(l, p);
	} else
		sticks = 0;

#ifdef DIAGNOSTIC
	if (l->l_addr == NULL)
		panic("trap: type 0x%x, code 0x%x, v 0x%x -- no pcb",
			type, code, v);
#endif

	switch (type) {
	default:
	dopanic:
		printf("trap type %d, code = 0x%x, v = 0x%x\n", type, code, v);
		printf("%s program counter = 0x%x\n",
		    (type & T_USER) ? "user" : "kernel", fp->f_pc);
		/*
		 * Let the kernel debugger see the trap frame that
		 * caused us to panic.  This is a convenience so
		 * one can see registers at the point of failure.
		 */
		s = splhigh();
#ifdef KGDB
		/* If connected, step or cont returns 1 */
		if (kgdb_trap(type, (db_regs_t *)fp))
			goto kgdb_cont;
#endif
#ifdef DDB
		(void)kdb_trap(type, (db_regs_t *)fp);
#endif
#ifdef KGDB
	kgdb_cont:
#endif
		splx(s);
		if (panicstr) {
			printf("trap during panic!\n");
#ifdef DEBUG
			/* XXX should be a machine-dependent hook */
			printf("(press a key)\n"); (void)cngetc();
#endif
		}
		regdump((struct trapframe *)fp, 128);
		type &= ~T_USER;
		if ((u_int)type < trap_types)
			panic(trap_type[type]);
		panic("trap");

	case T_BUSERR:		/* Kernel bus error */
		if (!l->l_addr->u_pcb.pcb_onfault)
			goto dopanic;
		/*
		 * If we have arranged to catch this fault in any of the
		 * copy to/from user space routines, set PC to return to
		 * indicated location and set flag informing buserror code
		 * that it may need to clean up stack frame.
		 */
copyfault:
		fp->f_stackadj = exframesize[fp->f_format];
		fp->f_format = fp->f_vector = 0;
		fp->f_pc = (int)l->l_addr->u_pcb.pcb_onfault;
		return;

	case T_BUSERR|T_USER:	/* Bus error */
	case T_ADDRERR|T_USER:	/* Address error */
		ksi.ksi_addr = (void *)v;
		ksi.ksi_signo = SIGBUS;
		ksi.ksi_code = (type == (T_BUSERR|T_USER)) ?
			BUS_OBJERR : BUS_ADRERR;
		break;

	case T_ILLINST|T_USER:	/* Illegal instruction fault */
	case T_PRIVINST|T_USER:	/* Privileged instruction fault */
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was ILL_PRIVIN_FAULT */
		ksi.ksi_signo = SIGILL;
		ksi.ksi_code = (type == (T_PRIVINST|T_USER)) ?
			ILL_PRVOPC : ILL_ILLOPC;
		break;
	/*
	 * divde by zero, CHK/TRAPV inst 
	 */
	case T_ZERODIV|T_USER:		/* Divide by zero trap */
		ksi.ksi_code = FPE_FLTDIV;
	case T_CHKINST|T_USER:		/* CHK instruction trap */
	case T_TRAPVINST|T_USER:	/* TRAPV instruction trap */
		ksi.ksi_addr = (void *)(int)fp->f_format;
		ksi.ksi_signo = SIGFPE;
		break;

	/* 
	 * User coprocessor violation
	 */
	case T_COPERR|T_USER:
	/* XXX What is a proper response here? */
		ksi.ksi_signo = SIGFPE;
		ksi.ksi_code = FPE_FLTINV;
		break;
	/* 
	 * 6888x exceptions 
	 */
	case T_FPERR|T_USER:
		/*
		 * We pass along the 68881 status register which locore
		 * stashed in code for us.  Note that there is a
		 * possibility that the bit pattern of this register
		 * will conflict with one of the FPE_* codes defined
		 * in signal.h.  Fortunately for us, the only such
		 * codes we use are all in the range 1-7 and the low
		 * 3 bits of the status register are defined as 0 so
		 * there is no clash.
		 */
		ksi.ksi_signo = SIGFPE;
		ksi.ksi_addr = (void *)code;
		break;

	/*
	 * FPU faults in supervisor mode.
	 */
	case T_ILLINST:	/* fnop generates this, apparently. */
	case T_FPEMULI:
	case T_FPEMULD: {
		extern label_t *nofault;

		if (nofault)	/* If we're probing. */
			longjmp(nofault);
		if (type == T_ILLINST)
			printf("Kernel Illegal Instruction trap.\n");
		else
			printf("Kernel FPU trap.\n");
		goto dopanic;
	}

	/*
	 * Unimplemented FPU instructions/datatypes.
	 */
	case T_FPEMULI|T_USER:
	case T_FPEMULD|T_USER:
#ifdef FPU_EMULATE
		if (fpu_emulate(fp, &l->l_addr->u_pcb.pcb_fpregs,
			&ksi) == 0)
			; /* XXX - Deal with tracing? (fp->f_sr & PSL_T) */
#else
		uprintf("pid %d killed: no floating point support.\n",
			p->p_pid);
		ksi.ksi_signo = SIGILL;
		ksi.ksi_code = ILL_ILLOPC;
#endif
		break;

	case T_COPERR:		/* Kernel coprocessor violation */
	case T_FMTERR:		/* Kernel format error */
	case T_FMTERR|T_USER:	/* User format error */
		/*
		 * The user has most likely trashed the RTE or FP state info
		 * in the stack frame of a signal handler.
		 */
		printf("pid %d: kernel %s exception\n", p->p_pid,
		    type==T_COPERR ? "coprocessor" : "format");
		type |= T_USER;
		mutex_enter(p->p_lock);
		SIGACTION(p, SIGILL).sa_handler = SIG_DFL;
		sigdelset(&p->p_sigctx.ps_sigignore, SIGILL);
		sigdelset(&p->p_sigctx.ps_sigcatch, SIGILL);
		sigdelset(&l->l_sigmask, SIGILL);
		mutex_exit(p->p_lock);
		ksi.ksi_signo = SIGILL;
		ksi.ksi_addr = (void *)(int)fp->f_format;
				/* XXX was ILL_RESAD_FAULT */
		ksi.ksi_code = (type == T_COPERR) ?
			ILL_COPROC : ILL_ILLOPC;
		break;

	/*
	 * XXX: Trace traps are a nightmare.
	 *
	 *	HP-UX uses trap #1 for breakpoints,
	 *	NetBSD/m68k uses trap #2,
	 *	SUN 3.x uses trap #15,
	 *	DDB and KGDB uses trap #15 (for kernel breakpoints;
	 *	handled elsewhere).
	 *
	 * NetBSD and HP-UX traps both get mapped by locore.s into T_TRACE.
	 * SUN 3.x traps get passed through as T_TRAP15 and are not really
	 * supported yet.
	 *
	 * XXX: We should never get kernel-mode T_TRAP15 because
	 * XXX: locore.s now gives it special treatment.
	 */
	case T_TRAP15:		/* SUN trace trap */
#ifdef DEBUG
		printf("unexpected kernel trace trap, type = %d\n", type);
		printf("program counter = 0x%x\n", fp->f_pc);
#endif
		fp->f_sr &= ~PSL_T;
		ksi.ksi_signo = SIGTRAP;
		break;

	case T_TRACE|T_USER:	/* user trace trap */
#ifdef COMPAT_SUNOS
		/*
		 * SunOS uses Trap #2 for a "CPU cache flush".
		 * Just flush the on-chip caches and return.
		 */
		if (p->p_emul == &emul_sunos) {
			ICIA();
			DCIU();
			return;
		}
#endif
		/* FALLTHROUGH */
	case T_TRACE:		/* tracing a trap instruction */
	case T_TRAP15|T_USER:	/* SUN user trace trap */
		fp->f_sr &= ~PSL_T;
		ksi.ksi_signo = SIGTRAP;
		break;

	case T_ASTFLT:		/* System async trap, cannot happen */
		goto dopanic;

	case T_ASTFLT|T_USER:	/* User async trap. */
		astpending = 0;
		/*
		 * We check for software interrupts first.  This is because
		 * they are at a higher level than ASTs, and on a VAX would
		 * interrupt the AST.  We assume that if we are processing
		 * an AST that we must be at IPL0 so we don't bother to
		 * check.  Note that we ensure that we are at least at SIR
		 * IPL while processing the SIR.
		 */
		spl1();
		/* fall into... */

	case T_SSIR:		/* Software interrupt */
	case T_SSIR|T_USER:
		/*
		 * If this was not an AST trap, we are all done.
		 */
		if (type != (T_ASTFLT|T_USER)) {
			uvmexp.traps--;
			return;
		}
		spl0();
		if (l->l_pflag & LP_OWEUPC) {
			l->l_pflag &= ~LP_OWEUPC;
			ADDUPROF(l);
		}
		if (curcpu()->ci_want_resched)
			preempt();
		goto out;

	case T_MMUFLT:		/* Kernel mode page fault */
		/*
		 * If we were doing profiling ticks or other user mode
		 * stuff from interrupt code, Just Say No.
		 */
		if (l->l_addr->u_pcb.pcb_onfault == fubail ||
		    l->l_addr->u_pcb.pcb_onfault == subail)
			goto copyfault;
		/* fall into... */

	case T_MMUFLT|T_USER:	/* page fault */
	    {
		vaddr_t va;
		struct vmspace *vm = p->p_vmspace;
		struct vm_map *map;
		int rv;
		vm_prot_t ftype;
		extern struct vm_map *kernel_map;

#ifdef DEBUG
		if ((mmudebug & MDB_WBFOLLOW) || MDB_ISPID(p->p_pid))
		printf("trap: T_MMUFLT pid=%d, code=%x, v=%x, pc=%x, sr=%x\n",
			p->p_pid, code, v, fp->f_pc, fp->f_sr);
#endif
		/*
		 * It is only a kernel address space fault iff:
		 *	1. (type & T_USER) == 0 and
		 *	2. pcb_onfault not set or
		 *	3. pcb_onfault set but supervisor data fault
		 * The last can occur during an exec() copyin where the
		 * argument space is lazy-allocated.
		 */
		if (type == T_MMUFLT &&
		    (!l->l_addr->u_pcb.pcb_onfault || KDFAULT(code)))
			map = kernel_map;
		else {
			map = vm ? &vm->vm_map : kernel_map;
			if ((l->l_flag & LW_SA)
			    && (~l->l_pflag & LP_SA_NOBLOCK)) {
				l->l_savp->savp_faultaddr = (vaddr_t)v;
				l->l_pflag |= LP_SA_PAGEFAULT;
			}
		}
		if (WRFAULT(code))
			ftype = VM_PROT_WRITE;
		else
			ftype = VM_PROT_READ;
		va = trunc_page((vaddr_t)v);
#ifdef DEBUG
		if (map == kernel_map && va == 0) {
			printf("trap: bad kernel access at %x\n", v);
			goto dopanic;
		}
#endif
		rv = uvm_fault(map, va, ftype);
#ifdef DEBUG
		if (rv && MDB_ISPID(p->p_pid))
			printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
			    map, va, ftype, rv);
#endif
		/*
		 * If this was a stack access, we keep track of the maximum
		 * accessed stack size.  Also, if vm_fault gets a protection
		 * failure, it is due to accessing the stack region outside
		 * the current limit and we need to reflect that as an access
		 * error.
		 */
		if (rv == 0) {
			if (map != kernel_map && (void *)va >= vm->vm_maxsaddr)
				uvm_grow(p, va);

			if (type == T_MMUFLT) {
#if defined(M68040)
				if (mmutype == MMU_68040)
					(void)writeback(fp, 1);
#endif
				return;
			}
			l->l_pflag &= ~LP_SA_PAGEFAULT;
			goto out;
		}
		if (rv == EACCES) {
			ksi.ksi_code = SEGV_ACCERR;
			rv = EFAULT;
		} else
			ksi.ksi_code = SEGV_MAPERR;
		if (type == T_MMUFLT) {
			if (l->l_addr->u_pcb.pcb_onfault)
				goto copyfault;
			printf("uvm_fault(%p, 0x%lx, 0x%x) -> 0x%x\n",
			    map, va, ftype, rv);
			printf("  type %x, code [mmu,,ssw]: %x\n",
				type, code);
			goto dopanic;
		}
		l->l_pflag &= ~LP_SA_PAGEFAULT;
		ksi.ksi_addr = (void *)v;
		if (rv == ENOMEM) {
			printf("UVM: pid %d (%s), uid %d killed: out of swap\n",
			       p->p_pid, p->p_comm,
			       l->l_cred ?
			       kauth_cred_geteuid(l->l_cred) : -1);
			ksi.ksi_signo = SIGKILL;
		} else {
			ksi.ksi_signo = SIGSEGV;
		}
		break;
	    }
	}
	if (ksi.ksi_signo)
		trapsignal(l, &ksi);
	if ((type & T_USER) == 0)
		return;
out:
	userret(l, fp, sticks, v, 1); 
}