Initial creation of sourceware repository

1 files changed, 0 insertions, 1028 deletions

diff --git a/gdb/d10v-tdep.c b/gdb/d10v-tdep.c
deleted file mode 100644
index f4b52f6..0000000
--- a/gdb/d10v-tdep.c
+++ /dev/null
@@ -1,1028 +0,0 @@
-/* Target-dependent code for Mitsubishi D10V, for GDB.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
-
-/*  Contributed by Martin Hunt, hunt@cygnus.com */
-
-#include "defs.h"
-#include "frame.h"
-#include "obstack.h"
-#include "symtab.h"
-#include "gdbtypes.h"
-#include "gdbcmd.h"
-#include "gdbcore.h"
-#include "gdb_string.h"
-#include "value.h"
-#include "inferior.h"
-#include "dis-asm.h"  
-#include "symfile.h"
-#include "objfiles.h"
-
-void d10v_frame_find_saved_regs PARAMS ((struct frame_info *fi,
-					 struct frame_saved_regs *fsr));
-
-int
-d10v_frame_chain_valid (chain, frame)
-     CORE_ADDR chain;
-     struct frame_info *frame;      /* not used here */
-{
-  return ((chain) != 0 && (frame) != 0 && (frame)->pc > IMEM_START);
-}
-
-
-/* Should we use EXTRACT_STRUCT_VALUE_ADDRESS instead of
-   EXTRACT_RETURN_VALUE?  GCC_P is true if compiled with gcc
-   and TYPE is the type (which is known to be struct, union or array).
-
-   The d10v returns anything less than 8 bytes in size in
-   registers. */
-
-int
-d10v_use_struct_convention (gcc_p, type)
-     int gcc_p;
-     struct type *type;
-{
-  return (TYPE_LENGTH (type) > 8);
-}
-
-
-/* Discard from the stack the innermost frame, restoring all saved
-   registers.  */
-
-void
-d10v_pop_frame (frame)
-     struct frame_info *frame;
-{
-  CORE_ADDR fp;
-  int regnum;
-  struct frame_saved_regs fsr;
-  char raw_buffer[8];
-
-  fp = FRAME_FP (frame);
-  /* fill out fsr with the address of where each */
-  /* register was stored in the frame */
-  get_frame_saved_regs (frame, &fsr);
-  
-  /* now update the current registers with the old values */
-  for (regnum = A0_REGNUM; regnum < A0_REGNUM+2 ; regnum++)
-    {
-      if (fsr.regs[regnum])
-	{
-	  read_memory (fsr.regs[regnum], raw_buffer,  REGISTER_RAW_SIZE(regnum));
-	  write_register_bytes (REGISTER_BYTE (regnum), raw_buffer,  REGISTER_RAW_SIZE(regnum));
-	}
-    }
-  for (regnum = 0; regnum < SP_REGNUM; regnum++)
-    {
-      if (fsr.regs[regnum])
-	{
-	  write_register (regnum, read_memory_unsigned_integer (fsr.regs[regnum], REGISTER_RAW_SIZE(regnum)));
-	}
-    }
-  if (fsr.regs[PSW_REGNUM])
-    {
-      write_register (PSW_REGNUM, read_memory_unsigned_integer (fsr.regs[PSW_REGNUM], REGISTER_RAW_SIZE(PSW_REGNUM)));
-    }
-
-  write_register (PC_REGNUM, read_register (LR_REGNUM));
-  write_register (SP_REGNUM, fp + frame->size);
-  target_store_registers (-1);
-  flush_cached_frames ();
-}
-
-static int 
-check_prologue (op)
-     unsigned short op;
-{
-  /* st  rn, @-sp */
-  if ((op & 0x7E1F) == 0x6C1F)
-    return 1;
-
-  /* st2w  rn, @-sp */
-  if ((op & 0x7E3F) == 0x6E1F)
-    return 1;
-
-  /* subi  sp, n */
-  if ((op & 0x7FE1) == 0x01E1)
-    return 1;
-
-  /* mv  r11, sp */
-  if (op == 0x417E)
-    return 1;
-
-  /* nop */
-  if (op == 0x5E00)
-    return 1;
-
-  /* st  rn, @sp */
-  if ((op & 0x7E1F) == 0x681E)
-    return 1;
-
-  /* st2w  rn, @sp */
- if ((op & 0x7E3F) == 0x3A1E)
-   return 1;
-
-  return 0;
-}
-
-CORE_ADDR
-d10v_skip_prologue (pc)
-     CORE_ADDR pc;
-{
-  unsigned long op;
-  unsigned short op1, op2;
-  CORE_ADDR func_addr, func_end;
-  struct symtab_and_line sal;
-
-  /* If we have line debugging information, then the end of the */
-  /* prologue should the first assembly instruction of  the first source line */
-  if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
-    {
-      sal = find_pc_line (func_addr, 0);
-      if ( sal.end && sal.end < func_end)
-	return sal.end;
-    }
-  
-  if (target_read_memory (pc, (char *)&op, 4))
-    return pc;			/* Can't access it -- assume no prologue. */
-
-  while (1)
-    {
-      op = (unsigned long)read_memory_integer (pc, 4);
-      if ((op & 0xC0000000) == 0xC0000000)
-	{
-	  /* long instruction */
-	  if ( ((op & 0x3FFF0000) != 0x01FF0000) &&   /* add3 sp,sp,n */
-	       ((op & 0x3F0F0000) != 0x340F0000) &&   /* st  rn, @(offset,sp) */
- 	       ((op & 0x3F1F0000) != 0x350F0000))     /* st2w  rn, @(offset,sp) */
-	    break;
-	}
-      else
-	{
-	  /* short instructions */
-	  if ((op & 0xC0000000) == 0x80000000)
-	    {
-	      op2 = (op & 0x3FFF8000) >> 15;
-	      op1 = op & 0x7FFF;
-	    } 
-	  else 
-	    {
-	      op1 = (op & 0x3FFF8000) >> 15;
-	      op2 = op & 0x7FFF;
-	    }
-	  if (check_prologue(op1))
-	    {
-	      if (!check_prologue(op2))
-		{
-		  /* if the previous opcode was really part of the prologue */
-		  /* and not just a NOP, then we want to break after both instructions */
-		  if (op1 != 0x5E00)
-		    pc += 4;
-		  break;
-		}
-	    }
-	  else
-	    break;
-	}
-      pc += 4;
-    }
-  return pc;
-}
-
-/* Given a GDB frame, determine the address of the calling function's frame.
-   This will be used to create a new GDB frame struct, and then
-   INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame.
-*/
-
-CORE_ADDR
-d10v_frame_chain (frame)
-     struct frame_info *frame;
-{
-  struct frame_saved_regs fsr;
-
-  d10v_frame_find_saved_regs (frame, &fsr);
-
-  if (frame->return_pc == IMEM_START || inside_entry_file(frame->return_pc))
-    return (CORE_ADDR)0;
-
-  if (!fsr.regs[FP_REGNUM])
-    {
-      if (!fsr.regs[SP_REGNUM] || fsr.regs[SP_REGNUM] == STACK_START)
-	return (CORE_ADDR)0;
-      
-      return fsr.regs[SP_REGNUM];
-    }
-
-  if (!read_memory_unsigned_integer(fsr.regs[FP_REGNUM], REGISTER_RAW_SIZE(FP_REGNUM)))
-    return (CORE_ADDR)0;
-
-  return D10V_MAKE_DADDR (read_memory_unsigned_integer (fsr.regs[FP_REGNUM], REGISTER_RAW_SIZE (FP_REGNUM)));
-}  
-
-static int next_addr, uses_frame;
-
-static int 
-prologue_find_regs (op, fsr, addr)
-     unsigned short op;
-     struct frame_saved_regs *fsr;
-     CORE_ADDR addr;
-{
-  int n;
-
-  /* st  rn, @-sp */
-  if ((op & 0x7E1F) == 0x6C1F)
-    {
-      n = (op & 0x1E0) >> 5;
-      next_addr -= 2;
-      fsr->regs[n] = next_addr;
-      return 1;
-    }
-
-  /* st2w  rn, @-sp */
-  else if ((op & 0x7E3F) == 0x6E1F)
-    {
-      n = (op & 0x1E0) >> 5;
-      next_addr -= 4;
-      fsr->regs[n] = next_addr;
-      fsr->regs[n+1] = next_addr+2;
-      return 1;
-    }
-
-  /* subi  sp, n */
-  if ((op & 0x7FE1) == 0x01E1)
-    {
-      n = (op & 0x1E) >> 1;
-      if (n == 0)
-	n = 16;
-      next_addr -= n;
-      return 1;
-    }
-
-  /* mv  r11, sp */
-  if (op == 0x417E)
-    {
-      uses_frame = 1;
-      return 1;
-    }
-
-  /* nop */
-  if (op == 0x5E00)
-    return 1;
-
-  /* st  rn, @sp */
-  if ((op & 0x7E1F) == 0x681E)
-    {
-      n = (op & 0x1E0) >> 5;
-      fsr->regs[n] = next_addr;
-      return 1;
-    }
-
-  /* st2w  rn, @sp */
-  if ((op & 0x7E3F) == 0x3A1E)
-    {
-      n = (op & 0x1E0) >> 5;
-      fsr->regs[n] = next_addr;
-      fsr->regs[n+1] = next_addr+2;
-      return 1;
-    }
-
-  return 0;
-}
-
-/* Put here the code to store, into a struct frame_saved_regs, the
-   addresses of the saved registers of frame described by FRAME_INFO.
-   This includes special registers such as pc and fp saved in special
-   ways in the stack frame.  sp is even more special: the address we
-   return for it IS the sp for the next frame. */
-void
-d10v_frame_find_saved_regs (fi, fsr)
-     struct frame_info *fi;
-     struct frame_saved_regs *fsr;
-{
-  CORE_ADDR fp, pc;
-  unsigned long op;
-  unsigned short op1, op2;
-  int i;
-
-  fp = fi->frame;
-  memset (fsr, 0, sizeof (*fsr));
-  next_addr = 0;
-
-  pc = get_pc_function_start (fi->pc);
-
-  uses_frame = 0;
-  while (1)
-    {
-      op = (unsigned long)read_memory_integer (pc, 4);
-      if ((op & 0xC0000000) == 0xC0000000)
-	{
-	  /* long instruction */
-	  if ((op & 0x3FFF0000) == 0x01FF0000)
-	    {
-	      /* add3 sp,sp,n */
-	      short n = op & 0xFFFF;
-	      next_addr += n;
-	    }
-	  else if ((op & 0x3F0F0000) == 0x340F0000)
-	    {
-	      /* st  rn, @(offset,sp) */
-	      short offset = op & 0xFFFF;
-	      short n = (op >> 20) & 0xF;
-	      fsr->regs[n] = next_addr + offset;
-	    }
-	  else if ((op & 0x3F1F0000) == 0x350F0000)
-	    {
-	      /* st2w  rn, @(offset,sp) */
-	      short offset = op & 0xFFFF;
-	      short n = (op >> 20) & 0xF;
-	      fsr->regs[n] = next_addr + offset;
-	      fsr->regs[n+1] = next_addr + offset + 2;
-	    }
-	  else
-	    break;
-	}
-      else
-	{
-	  /* short instructions */
-	  if ((op & 0xC0000000) == 0x80000000)
-	    {
-	      op2 = (op & 0x3FFF8000) >> 15;
-	      op1 = op & 0x7FFF;
-	    } 
-	  else 
-	    {
-	      op1 = (op & 0x3FFF8000) >> 15;
-	      op2 = op & 0x7FFF;
-	    }
-	  if (!prologue_find_regs(op1,fsr,pc) || !prologue_find_regs(op2,fsr,pc))
-	    break;
-	}
-      pc += 4;
-    }
-  
-  fi->size = -next_addr;
-
-  if (!(fp & 0xffff))
-    fp = D10V_MAKE_DADDR (read_register(SP_REGNUM));
-
-  for (i=0; i<NUM_REGS-1; i++)
-    if (fsr->regs[i])
-      {
-	fsr->regs[i] = fp - (next_addr - fsr->regs[i]); 
-      }
-
-  if (fsr->regs[LR_REGNUM])
-    {
-      CORE_ADDR return_pc = read_memory_unsigned_integer (fsr->regs[LR_REGNUM], REGISTER_RAW_SIZE (LR_REGNUM));
-      fi->return_pc = D10V_MAKE_IADDR (return_pc);
-    }
-  else
-    {
-      fi->return_pc = D10V_MAKE_IADDR (read_register(LR_REGNUM));
-    }
-  
-  /* th SP is not normally (ever?) saved, but check anyway */
-  if (!fsr->regs[SP_REGNUM])
-    {
-      /* if the FP was saved, that means the current FP is valid, */
-      /* otherwise, it isn't being used, so we use the SP instead */
-      if (uses_frame)
-	fsr->regs[SP_REGNUM] = read_register(FP_REGNUM) + fi->size;
-      else
-	{
-	  fsr->regs[SP_REGNUM] = fp + fi->size;
-	  fi->frameless = 1;
-	  fsr->regs[FP_REGNUM] = 0;
-	}
-    }
-}
-
-void
-d10v_init_extra_frame_info (fromleaf, fi)
-     int fromleaf;
-     struct frame_info *fi;
-{
-  fi->frameless = 0;
-  fi->size = 0;
-  fi->return_pc = 0;
-
-  /* The call dummy doesn't save any registers on the stack, so we can
-     return now.  */
-  if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
-    {
-      return;
-    }
-  else
-    {
-      struct frame_saved_regs dummy;
-      d10v_frame_find_saved_regs (fi, &dummy);
-    }
-}
-
-static void
-show_regs (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  int a;
-  printf_filtered ("PC=%04x (0x%x) PSW=%04x RPT_S=%04x RPT_E=%04x RPT_C=%04x\n",
-                   read_register (PC_REGNUM), D10V_MAKE_IADDR (read_register (PC_REGNUM)),
-                   read_register (PSW_REGNUM),
-                   read_register (24),
-                   read_register (25),
-                   read_register (23));
-  printf_filtered ("R0-R7  %04x %04x %04x %04x %04x %04x %04x %04x\n",
-                   read_register (0),
-                   read_register (1),
-                   read_register (2),
-                   read_register (3),
-                   read_register (4),
-                   read_register (5),
-                   read_register (6),
-                   read_register (7));
-  printf_filtered ("R8-R15 %04x %04x %04x %04x %04x %04x %04x %04x\n",
-                   read_register (8), 
-                   read_register (9),
-                   read_register (10),
-                   read_register (11),
-                   read_register (12),
-                   read_register (13),
-                   read_register (14),
-                   read_register (15));
-  printf_filtered ("IMAP0 %04x    IMAP1 %04x    DMAP %04x\n",
-                   read_register (IMAP0_REGNUM),
-                   read_register (IMAP1_REGNUM),
-                   read_register (DMAP_REGNUM));
-  printf_filtered ("A0-A1");
-  for (a = A0_REGNUM; a <= A0_REGNUM + 1; a++)
-    {
-      char num[MAX_REGISTER_RAW_SIZE];
-      int i;
-      printf_filtered ("  ");
-      read_register_gen (a, (char *)&num);
-      for (i = 0; i < MAX_REGISTER_RAW_SIZE; i++)
-	{
-	  printf_filtered ("%02x", (num[i] & 0xff));
-	}
-    }
-  printf_filtered ("\n");
-}
-
-CORE_ADDR
-d10v_read_pc (pid)
-     int pid;
-{
-  int save_pid;
-  CORE_ADDR pc;
-  CORE_ADDR retval;
-
-  save_pid = inferior_pid;
-  inferior_pid = pid;
-  pc = (int) read_register (PC_REGNUM);
-  inferior_pid = save_pid;
-  retval = D10V_MAKE_IADDR (pc);
-  return retval;
-}
-
-void
-d10v_write_pc (val, pid)
-     CORE_ADDR val;
-     int pid;
-{
-  int save_pid;
-
-  save_pid = inferior_pid;
-  inferior_pid = pid;
-  write_register (PC_REGNUM, D10V_CONVERT_IADDR_TO_RAW (val));
-  inferior_pid = save_pid;
-}
-
-CORE_ADDR
-d10v_read_sp ()
-{
-  return (D10V_MAKE_DADDR (read_register (SP_REGNUM)));
-}
-
-void
-d10v_write_sp (val)
-     CORE_ADDR val;
-{
-  write_register (SP_REGNUM, D10V_CONVERT_DADDR_TO_RAW (val));
-}
-
-void
-d10v_write_fp (val)
-     CORE_ADDR val;
-{
-  write_register (FP_REGNUM, D10V_CONVERT_DADDR_TO_RAW (val));
-}
-
-CORE_ADDR
-d10v_read_fp ()
-{
-  return (D10V_MAKE_DADDR (read_register(FP_REGNUM)));
-}
-
-/* Function: push_return_address (pc)
-   Set up the return address for the inferior function call.
-   Needed for targets where we don't actually execute a JSR/BSR instruction */
- 
-CORE_ADDR
-d10v_push_return_address (pc, sp)
-     CORE_ADDR pc;
-     CORE_ADDR sp;
-{
-  write_register (LR_REGNUM, D10V_CONVERT_IADDR_TO_RAW (CALL_DUMMY_ADDRESS ()));
-  return sp;
-}
- 
-
-CORE_ADDR
-d10v_push_arguments (nargs, args, sp, struct_return, struct_addr)
-     int nargs;
-     value_ptr *args;
-     CORE_ADDR sp;
-     int struct_return;
-     CORE_ADDR struct_addr;
-{
-  int i;
-  int regnum = ARG1_REGNUM;
-  
-  /* Fill in registers and arg lists */
-  for (i = 0; i < nargs; i++)
-    {
-      value_ptr arg = args[i];
-      struct type *type = check_typedef (VALUE_TYPE (arg));
-      char *contents = VALUE_CONTENTS (arg);
-      int len = TYPE_LENGTH (type);
-      /* printf ("push: type=%d len=%d\n", type->code, len); */
-      if (TYPE_CODE (type) == TYPE_CODE_PTR)
-	{
-	  /* pointers require special handling - first convert and
-	     then store */
-	  long val = extract_signed_integer (contents, len);
-	  len = 2;
-	  if (TYPE_TARGET_TYPE (type)
-	      && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
-	    {
-	      /* function pointer */
-	      val = D10V_CONVERT_IADDR_TO_RAW (val);
-	    }
-	  else if (D10V_IADDR_P (val))
-	    {
-	      /* also function pointer! */
-	      val = D10V_CONVERT_DADDR_TO_RAW (val);
-	    }
-	  else
-	    {
-	      /* data pointer */
-	      val &= 0xFFFF;
-	    }
-	  if (regnum <= ARGN_REGNUM)
-	    write_register (regnum++, val & 0xffff);
-	  else
-	    {
-	      char ptr[2];
-	      sp -= 2;
-	      store_address (ptr, val & 0xffff, 2);
-	      write_memory (sp, ptr, 2);
-	    }
-	}
-      else
-	{
-	  int aligned_regnum = (regnum + 1) & ~1;
-	  if (len <= 2 && regnum <= ARGN_REGNUM)
-	    /* fits in a single register, do not align */
-	    {
-	      long val = extract_unsigned_integer (contents, len);
-	      write_register (regnum++, val);
-	    }
-	  else if (len <= (ARGN_REGNUM - aligned_regnum + 1) * 2)
-	    /* value fits in remaining registers, store keeping left
-               aligned */
-	    {
-	      int b;
-	      regnum = aligned_regnum;
-	      for (b = 0; b < (len & ~1); b += 2)
-		{
-		  long val = extract_unsigned_integer (&contents[b], 2);
-		  write_register (regnum++, val);
-		}
-	      if (b < len)
-		{
-		  long val = extract_unsigned_integer (&contents[b], 1);
-		  write_register (regnum++, (val << 8));
-		}
-	    }
-	  else
-	    {
-	      /* arg goes straight on stack */
-	      regnum = ARGN_REGNUM + 1;
-	      sp = (sp - len) & ~1;
-	      write_memory (sp, contents, len);
-	    }
-	}
-    }
-  return sp;
-}
-
-
-/* Given a return value in `regbuf' with a type `valtype', 
-   extract and copy its value into `valbuf'.  */
-
-void
-d10v_extract_return_value (type, regbuf, valbuf)
-     struct type *type;
-     char regbuf[REGISTER_BYTES];
-     char *valbuf;
-{
-  int len;
-  /*    printf("RET: TYPE=%d len=%d r%d=0x%x\n",type->code, TYPE_LENGTH (type), RET1_REGNUM - R0_REGNUM, (int) extract_unsigned_integer (regbuf + REGISTER_BYTE(RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM)));  */
-  if (TYPE_CODE (type) == TYPE_CODE_PTR
-      && TYPE_TARGET_TYPE (type)
-      && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
-    {
-      /* pointer to function */
-      int num;
-      short snum;
-      snum = extract_address (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
-      store_address ( valbuf, 4, D10V_MAKE_IADDR(snum));
-    }
-  else if (TYPE_CODE(type) == TYPE_CODE_PTR)
-    {
-      /* pointer to data */
-      int num;
-      short snum;
-      snum = extract_address (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
-      store_address ( valbuf, 4, D10V_MAKE_DADDR(snum));
-    }
-  else
-    {
-      len = TYPE_LENGTH (type);
-      if (len == 1)
-	{
-	  unsigned short c = extract_unsigned_integer (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
-	  store_unsigned_integer (valbuf, 1, c);
-	}
-      else if ((len & 1) == 0)
-	memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM), len);
-      else
-	{
-	  /* For return values of odd size, the first byte is in the
-             least significant part of the first register.  The
-             remaining bytes in remaining registers. Interestingly,
-             when such values are passed in, the last byte is in the
-             most significant byte of that same register - wierd. */
-	  memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM) + 1, len);
-	}
-    }
-}
-
-/* The following code implements access to, and display of, the D10V's
-   instruction trace buffer.  The buffer consists of 64K or more
-   4-byte words of data, of which each words includes an 8-bit count,
-   an 8-bit segment number, and a 16-bit instruction address.
-
-   In theory, the trace buffer is continuously capturing instruction
-   data that the CPU presents on its "debug bus", but in practice, the
-   ROMified GDB stub only enables tracing when it continues or steps
-   the program, and stops tracing when the program stops; so it
-   actually works for GDB to read the buffer counter out of memory and
-   then read each trace word.  The counter records where the tracing
-   stops, but there is no record of where it started, so we remember
-   the PC when we resumed and then search backwards in the trace
-   buffer for a word that includes that address.  This is not perfect,
-   because you will miss trace data if the resumption PC is the target
-   of a branch.  (The value of the buffer counter is semi-random, any
-   trace data from a previous program stop is gone.)  */
-
-/* The address of the last word recorded in the trace buffer.  */
-
-#define DBBC_ADDR (0xd80000)
-
-/* The base of the trace buffer, at least for the "Board_0".  */
-
-#define TRACE_BUFFER_BASE (0xf40000)
-
-static void trace_command PARAMS ((char *, int));
-
-static void untrace_command PARAMS ((char *, int));
-
-static void trace_info PARAMS ((char *, int));
-
-static void tdisassemble_command PARAMS ((char *, int));
-
-static void display_trace PARAMS ((int, int));
-
-/* True when instruction traces are being collected.  */
-
-static int tracing;
-
-/* Remembered PC.  */
-
-static CORE_ADDR last_pc;
-
-/* True when trace output should be displayed whenever program stops.  */
-
-static int trace_display;
-
-/* True when trace listing should include source lines.  */
-
-static int default_trace_show_source = 1;
-
-struct trace_buffer {
-  int size;
-  short *counts;
-  CORE_ADDR *addrs;
-} trace_data;
-
-static void
-trace_command (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  /* Clear the host-side trace buffer, allocating space if needed.  */
-  trace_data.size = 0;
-  if (trace_data.counts == NULL)
-    trace_data.counts = (short *) xmalloc (65536 * sizeof(short));
-  if (trace_data.addrs == NULL)
-    trace_data.addrs = (CORE_ADDR *) xmalloc (65536 * sizeof(CORE_ADDR));
-
-  tracing = 1;
-
-  printf_filtered ("Tracing is now on.\n");
-}
-
-static void
-untrace_command (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  tracing = 0;
-
-  printf_filtered ("Tracing is now off.\n");
-}
-
-static void
-trace_info (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  int i;
-
-  if (trace_data.size)
-    {
-      printf_filtered ("%d entries in trace buffer:\n", trace_data.size);
-
-      for (i = 0; i < trace_data.size; ++i)
-	{
-	  printf_filtered ("%d: %d instruction%s at 0x%x\n",
-			   i, trace_data.counts[i],
-			   (trace_data.counts[i] == 1 ? "" : "s"),
-			   trace_data.addrs[i]);
-	}
-    }
-  else
-    printf_filtered ("No entries in trace buffer.\n");
-
-  printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off"));
-}
-
-/* Print the instruction at address MEMADDR in debugged memory,
-   on STREAM.  Returns length of the instruction, in bytes.  */
-
-static int
-print_insn (memaddr, stream)
-     CORE_ADDR memaddr;
-     GDB_FILE *stream;
-{
-  /* If there's no disassembler, something is very wrong.  */
-  if (tm_print_insn == NULL)
-    abort ();
-
-  if (TARGET_BYTE_ORDER == BIG_ENDIAN)
-    tm_print_insn_info.endian = BFD_ENDIAN_BIG;
-  else
-    tm_print_insn_info.endian = BFD_ENDIAN_LITTLE;
-  return (*tm_print_insn) (memaddr, &tm_print_insn_info);
-}
-
-void
-d10v_eva_prepare_to_trace ()
-{
-  if (!tracing)
-    return;
-
-  last_pc = read_register (PC_REGNUM);
-}
-
-/* Collect trace data from the target board and format it into a form
-   more useful for display.  */
-
-void
-d10v_eva_get_trace_data ()
-{
-  int count, i, j, oldsize;
-  int trace_addr, trace_seg, trace_cnt, next_cnt;
-  unsigned int last_trace, trace_word, next_word;
-  unsigned int *tmpspace;
-
-  if (!tracing)
-    return;
-
-  tmpspace = xmalloc (65536 * sizeof(unsigned int));
-
-  last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2;
-
-  /* Collect buffer contents from the target, stopping when we reach
-     the word recorded when execution resumed.  */
-
-  count = 0;
-  while (last_trace > 0)
-    {
-      QUIT;
-      trace_word =
-	read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4);
-      trace_addr = trace_word & 0xffff;
-      last_trace -= 4;
-      /* Ignore an apparently nonsensical entry.  */
-      if (trace_addr == 0xffd5)
-	continue;
-      tmpspace[count++] = trace_word;
-      if (trace_addr == last_pc)
-	break;
-      if (count > 65535)
-	break;
-    }
-
-  /* Move the data to the host-side trace buffer, adjusting counts to
-     include the last instruction executed and transforming the address
-     into something that GDB likes.  */
-
-  for (i = 0; i < count; ++i)
-    {
-      trace_word = tmpspace[i];
-      next_word = ((i == 0) ? 0 : tmpspace[i - 1]);
-      trace_addr = trace_word & 0xffff;
-      next_cnt = (next_word >> 24) & 0xff;
-      j = trace_data.size + count - i - 1;
-      trace_data.addrs[j] = (trace_addr << 2) + 0x1000000;
-      trace_data.counts[j] = next_cnt + 1;
-    }
-
-  oldsize = trace_data.size;
-  trace_data.size += count;
-
-  free (tmpspace);
-
-  if (trace_display)
-    display_trace (oldsize, trace_data.size);
-}
-
-static void
-tdisassemble_command (arg, from_tty)
-     char *arg;
-     int from_tty;
-{
-  int i, count;
-  CORE_ADDR low, high;
-  char *space_index;
-
-  if (!arg)
-    {
-      low = 0;
-      high = trace_data.size;
-    }
-  else if (!(space_index = (char *) strchr (arg, ' ')))
-    {
-      low = parse_and_eval_address (arg);
-      high = low + 5;
-    }
-  else
-    {
-      /* Two arguments.  */
-      *space_index = '\0';
-      low = parse_and_eval_address (arg);
-      high = parse_and_eval_address (space_index + 1);
-      if (high < low)
-	high = low;
-    }
-
-  printf_filtered ("Dump of trace from %d to %d:\n", low, high);
-
-  display_trace (low, high);
-
-  printf_filtered ("End of trace dump.\n");
-  gdb_flush (gdb_stdout);
-}
-
-static void
-display_trace (low, high)
-     int low, high;
-{
-  int i, count, trace_show_source, first, suppress;
-  CORE_ADDR next_address;
-
-  trace_show_source = default_trace_show_source;
-  if (!have_full_symbols () && !have_partial_symbols())
-    {
-      trace_show_source = 0;
-      printf_filtered ("No symbol table is loaded.  Use the \"file\" command.\n");
-      printf_filtered ("Trace will not display any source.\n");
-    }
-
-  first = 1;
-  suppress = 0;
-  for (i = low; i < high; ++i)
-    {
-      next_address = trace_data.addrs[i];
-      count = trace_data.counts[i]; 
-      while (count-- > 0)
-	{
-	  QUIT;
-	  if (trace_show_source)
-	    {
-	      struct symtab_and_line sal, sal_prev;
-
-	      sal_prev = find_pc_line (next_address - 4, 0);
-	      sal = find_pc_line (next_address, 0);
-
-	      if (sal.symtab)
-		{
-		  if (first || sal.line != sal_prev.line)
-		    print_source_lines (sal.symtab, sal.line, sal.line + 1, 0);
-		  suppress = 0;
-		}
-	      else
-		{
-		  if (!suppress)
-		    /* FIXME-32x64--assumes sal.pc fits in long.  */
-		    printf_filtered ("No source file for address %s.\n",
-				     local_hex_string((unsigned long) sal.pc));
-		  suppress = 1;
-		}
-	    }
-	  first = 0;
-	  print_address (next_address, gdb_stdout);
-	  printf_filtered (":");
-	  printf_filtered ("\t");
-	  wrap_here ("    ");
-	  next_address = next_address + print_insn (next_address, gdb_stdout);
-	  printf_filtered ("\n");
-	  gdb_flush (gdb_stdout);
-	}
-    }
-}
-
-extern void (*target_resume_hook) PARAMS ((void));
-extern void (*target_wait_loop_hook) PARAMS ((void));
-
-void
-_initialize_d10v_tdep ()
-{
-  tm_print_insn = print_insn_d10v;
-
-  target_resume_hook = d10v_eva_prepare_to_trace;
-  target_wait_loop_hook = d10v_eva_get_trace_data;
-
-  add_com ("regs", class_vars, show_regs, "Print all registers");
-
-  add_com ("trace", class_support, trace_command,
-	   "Enable tracing of instruction execution.");
-
-  add_com ("untrace", class_support, untrace_command,
-	   "Disable tracing of instruction execution.");
-
-  add_com ("tdisassemble", class_vars, tdisassemble_command,
-	   "Disassemble the trace buffer.\n\
-Two optional arguments specify a range of trace buffer entries\n\
-as reported by info trace (NOT addresses!).");
-
-  add_info ("trace", trace_info,
-	    "Display info about the trace data buffer.");
-
-  add_show_from_set (add_set_cmd ("tracedisplay", no_class,
-				  var_integer, (char *)&trace_display,
-				  "Set automatic display of trace.\n", &setlist),
-		     &showlist);
-  add_show_from_set (add_set_cmd ("tracesource", no_class,
-				  var_integer, (char *)&default_trace_show_source,
-				  "Set display of source code with trace.\n", &setlist),
-		     &showlist);
-
-}