mloop.in

这个是LINUX下的GDB调度工具的源码

# OBSOLETE # Simulator main loop for fr30. -*- C -*-
# OBSOLETE # Copyright (C) 1998, 1999 Free Software Foundation, Inc.
# OBSOLETE # Contributed by Cygnus Solutions.
# OBSOLETE #
# OBSOLETE # This file is part of the GNU Simulators.
# OBSOLETE #
# OBSOLETE # This program is free software; you can redistribute it and/or modify
# OBSOLETE # it under the terms of the GNU General Public License as published by
# OBSOLETE # the Free Software Foundation; either version 2, or (at your option)
# OBSOLETE # any later version.
# OBSOLETE #
# OBSOLETE # This program is distributed in the hope that it will be useful,
# OBSOLETE # but WITHOUT ANY WARRANTY; without even the implied warranty of
# OBSOLETE # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# OBSOLETE # GNU General Public License for more details.
# OBSOLETE #
# OBSOLETE # You should have received a copy of the GNU General Public License along
# OBSOLETE # with this program; if not, write to the Free Software Foundation, Inc.,
# OBSOLETE # 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# OBSOLETE 
# OBSOLETE # Syntax:
# OBSOLETE # /bin/sh mainloop.in command
# OBSOLETE #
# OBSOLETE # Command is one of:
# OBSOLETE #
# OBSOLETE # init
# OBSOLETE # support
# OBSOLETE # extract-{simple,scache,pbb}
# OBSOLETE # {full,fast}-exec-{simple,scache,pbb}
# OBSOLETE #
# OBSOLETE # A target need only provide a "full" version of one of simple,scache,pbb.
# OBSOLETE # If the target wants it can also provide a fast version of same.
# OBSOLETE # It can't provide more than this, however for illustration's sake the FR30
# OBSOLETE # port provides examples of all.
# OBSOLETE 
# OBSOLETE # ??? After a few more ports are done, revisit.
# OBSOLETE # Will eventually need to machine generate a lot of this.
# OBSOLETE 
# OBSOLETE case "x$1" in
# OBSOLETE 
# OBSOLETE xsupport)
# OBSOLETE 
# OBSOLETE cat <<EOF
# OBSOLETE 
# OBSOLETE static INLINE const IDESC *
# OBSOLETE extract (SIM_CPU *current_cpu, PCADDR pc, CGEN_INSN_INT insn, ARGBUF *abuf,
# OBSOLETE          int fast_p)
# OBSOLETE {
# OBSOLETE   const IDESC *id = @cpu@_decode (current_cpu, pc, insn, abuf);
# OBSOLETE   @cpu@_fill_argbuf (current_cpu, abuf, id, pc, fast_p);
# OBSOLETE   if (! fast_p)
# OBSOLETE     {
# OBSOLETE       int trace_p = PC_IN_TRACE_RANGE_P (current_cpu, pc);
# OBSOLETE       int profile_p = PC_IN_PROFILE_RANGE_P (current_cpu, pc);
# OBSOLETE       @cpu@_fill_argbuf_tp (current_cpu, abuf, trace_p, profile_p);
# OBSOLETE     }
# OBSOLETE   return id;
# OBSOLETE }
# OBSOLETE 
# OBSOLETE static INLINE SEM_PC
# OBSOLETE execute (SIM_CPU *current_cpu, SCACHE *sc, int fast_p)
# OBSOLETE {
# OBSOLETE   SEM_PC vpc;
# OBSOLETE 
# OBSOLETE   if (fast_p)
# OBSOLETE     {
# OBSOLETE #if ! WITH_SEM_SWITCH_FAST
# OBSOLETE #if WITH_SCACHE
# OBSOLETE       vpc = (*sc->argbuf.semantic.sem_fast) (current_cpu, sc);
# OBSOLETE #else
# OBSOLETE       vpc = (*sc->argbuf.semantic.sem_fast) (current_cpu, &sc->argbuf);
# OBSOLETE #endif
# OBSOLETE #else
# OBSOLETE       abort ();
# OBSOLETE #endif /* WITH_SEM_SWITCH_FAST */
# OBSOLETE     }
# OBSOLETE   else
# OBSOLETE     {
# OBSOLETE #if ! WITH_SEM_SWITCH_FULL
# OBSOLETE       ARGBUF *abuf = &sc->argbuf;
# OBSOLETE       const IDESC *idesc = abuf->idesc;
# OBSOLETE #if WITH_SCACHE_PBB
# OBSOLETE       int virtual_p = CGEN_ATTR_VALUE (NULL, idesc->attrs, CGEN_INSN_VIRTUAL);
# OBSOLETE #else
# OBSOLETE       int virtual_p = 0;
# OBSOLETE #endif
# OBSOLETE 
# OBSOLETE       if (! virtual_p)
# OBSOLETE 	{
# OBSOLETE 	  /* FIXME: call x-before */
# OBSOLETE 	  if (ARGBUF_PROFILE_P (abuf))
# OBSOLETE 	    PROFILE_COUNT_INSN (current_cpu, abuf->addr, idesc->num);
# OBSOLETE 	  /* FIXME: Later make cover macros: PROFILE_INSN_{INIT,FINI}.  */
# OBSOLETE 	  if (PROFILE_MODEL_P (current_cpu)
# OBSOLETE 	      && ARGBUF_PROFILE_P (abuf))
# OBSOLETE 	    @cpu@_model_insn_before (current_cpu, 1 /*first_p*/);
# OBSOLETE 	  TRACE_INSN_INIT (current_cpu, abuf, 1);
# OBSOLETE 	  TRACE_INSN (current_cpu, idesc->idata,
# OBSOLETE 		      (const struct argbuf *) abuf, abuf->addr);
# OBSOLETE 	}
# OBSOLETE #if WITH_SCACHE
# OBSOLETE       vpc = (*sc->argbuf.semantic.sem_full) (current_cpu, sc);
# OBSOLETE #else
# OBSOLETE       vpc = (*sc->argbuf.semantic.sem_full) (current_cpu, abuf);
# OBSOLETE #endif
# OBSOLETE       if (! virtual_p)
# OBSOLETE 	{
# OBSOLETE 	  /* FIXME: call x-after */
# OBSOLETE 	  if (PROFILE_MODEL_P (current_cpu)
# OBSOLETE 	      && ARGBUF_PROFILE_P (abuf))
# OBSOLETE 	    {
# OBSOLETE 	      int cycles;
# OBSOLETE 
# OBSOLETE 	      cycles = (*idesc->timing->model_fn) (current_cpu, sc);
# OBSOLETE 	      @cpu@_model_insn_after (current_cpu, 1 /*last_p*/, cycles);
# OBSOLETE 	    }
# OBSOLETE 	  TRACE_INSN_FINI (current_cpu, abuf, 1);
# OBSOLETE 	}
# OBSOLETE #else
# OBSOLETE       abort ();
# OBSOLETE #endif /* WITH_SEM_SWITCH_FULL */
# OBSOLETE     }
# OBSOLETE 
# OBSOLETE   return vpc;
# OBSOLETE }
# OBSOLETE 
# OBSOLETE EOF
# OBSOLETE 
# OBSOLETE ;;
# OBSOLETE 
# OBSOLETE xinit)
# OBSOLETE 
# OBSOLETE cat <<EOF
# OBSOLETE /*xxxinit*/
# OBSOLETE EOF
# OBSOLETE 
# OBSOLETE ;;
# OBSOLETE 
# OBSOLETE xextract-simple | xextract-scache)
# OBSOLETE 
# OBSOLETE # Inputs:  current_cpu, vpc, sc, FAST_P
# OBSOLETE # Outputs: sc filled in
# OBSOLETE 
# OBSOLETE cat <<EOF
# OBSOLETE {
# OBSOLETE   CGEN_INSN_INT insn = GETIMEMUHI (current_cpu, vpc);
# OBSOLETE   extract (current_cpu, vpc, insn, SEM_ARGBUF (sc), FAST_P);
# OBSOLETE }
# OBSOLETE EOF
# OBSOLETE 
# OBSOLETE ;;
# OBSOLETE 
# OBSOLETE xextract-pbb)
# OBSOLETE 
# OBSOLETE # Inputs:  current_cpu, pc, sc, max_insns, FAST_P
# OBSOLETE # Outputs: sc, pc
# OBSOLETE # sc must be left pointing past the last created entry.
# OBSOLETE # pc must be left pointing past the last created entry.
# OBSOLETE # If the pbb is terminated by a cti insn, SET_CTI_VPC(sc) must be called
# OBSOLETE # to record the vpc of the cti insn.
# OBSOLETE # SET_INSN_COUNT(n) must be called to record number of real insns.
# OBSOLETE 
# OBSOLETE cat <<EOF
# OBSOLETE {
# OBSOLETE   const IDESC *idesc;
# OBSOLETE   int icount = 0;
# OBSOLETE 
# OBSOLETE   while (max_insns > 0)
# OBSOLETE     {
# OBSOLETE       UHI insn = GETIMEMUHI (current_cpu, pc);
# OBSOLETE       idesc = extract (current_cpu, pc, insn, &sc->argbuf, FAST_P);
# OBSOLETE       ++sc;
# OBSOLETE       --max_insns;
# OBSOLETE       ++icount;
# OBSOLETE       pc += idesc->length;
# OBSOLETE       if (IDESC_CTI_P (idesc))
# OBSOLETE 	{
# OBSOLETE 	  SET_CTI_VPC (sc - 1);
# OBSOLETE 
# OBSOLETE 	  /* Delay slot? */
# OBSOLETE 	  /* ??? breakpoints in delay slots */
# OBSOLETE 	  if (CGEN_ATTR_VALUE (NULL, idesc->attrs, CGEN_INSN_DELAY_SLOT))
# OBSOLETE 	    {
# OBSOLETE 	      UHI insn = GETIMEMUHI (current_cpu, pc);
# OBSOLETE 	      idesc = extract (current_cpu, pc, insn, &sc->argbuf, FAST_P);
# OBSOLETE 	      if (CGEN_ATTR_VALUE (NULL, idesc->attrs, CGEN_INSN_NOT_IN_DELAY_SLOT))
# OBSOLETE 		{
# OBSOLETE 		  /* malformed program */
# OBSOLETE 		  sim_io_eprintf (CPU_STATE (current_cpu),
# OBSOLETE 				  "malformed program, \`%s' insn in delay slot\n",
# OBSOLETE 				  CGEN_INSN_NAME (idesc->idata));
# OBSOLETE 		}
# OBSOLETE 	      else
# OBSOLETE 		{
# OBSOLETE 		  ++sc;
# OBSOLETE 		  --max_insns;
# OBSOLETE 		  ++icount;
# OBSOLETE 		  pc += idesc->length;
# OBSOLETE 		}
# OBSOLETE 	    }
# OBSOLETE 	  break;
# OBSOLETE 	}
# OBSOLETE     }
# OBSOLETE 
# OBSOLETE  Finish:
# OBSOLETE   SET_INSN_COUNT (icount);
# OBSOLETE }
# OBSOLETE EOF
# OBSOLETE 
# OBSOLETE ;;
# OBSOLETE 
# OBSOLETE xfull-exec-* | xfast-exec-*)
# OBSOLETE 
# OBSOLETE # Inputs: current_cpu, sc, FAST_P
# OBSOLETE # Outputs: vpc
# OBSOLETE # vpc contains the address of the next insn to execute
# OBSOLETE 
# OBSOLETE cat <<EOF
# OBSOLETE {
# OBSOLETE #if (! FAST_P && WITH_SEM_SWITCH_FULL) || (FAST_P && WITH_SEM_SWITCH_FAST)
# OBSOLETE #define DEFINE_SWITCH
# OBSOLETE #include "sem-switch.c"
# OBSOLETE #else
# OBSOLETE   vpc = execute (current_cpu, vpc, FAST_P);
# OBSOLETE #endif
# OBSOLETE }
# OBSOLETE EOF
# OBSOLETE 
# OBSOLETE ;;
# OBSOLETE 
# OBSOLETE *)
# OBSOLETE   echo "Invalid argument to mainloop.in: $1" >&2
# OBSOLETE   exit 1
# OBSOLETE   ;;
# OBSOLETE 
# OBSOLETE esac