Fix compile time warning messages.

10 files changed, 109 insertions, 669 deletions

diff --git a/sim/arm/ChangeLog b/sim/arm/ChangeLog
index db8d4df013d..3569741b59f 100644
--- a/sim/arm/ChangeLog
+++ b/sim/arm/ChangeLog
@@ -1,3 +1,14 @@
+2000-02-08  Nick Clifton  <nickc@cygnus.com>
+
+	* wrapper.c: Fix compile time warning messages.
+	* armcopro.c: Fix compile time warning messages.
+	* armdefs.h: Fix compile time warning messages.
+	* armemu.c: Fix compile time warning messages.
+	* armemu.h: Fix compile time warning messages.
+	* armos.c: Fix compile time warning messages.
+	* armsupp.c: Fix compile time warning messages.
+	* armvirt.c: Fix compile time warning messages.
+	
 2000-02-02  Bernd Schmidt  <bernds@cygnus.co.uk>
 
 	* *.[ch]: Use indent to make readable.
diff --git a/sim/arm/armcopro.c b/sim/arm/armcopro.c
index 6874ee1ceca..579446c1959 100644
--- a/sim/arm/armcopro.c
+++ b/sim/arm/armcopro.c
@@ -1,5 +1,5 @@
 /*  armcopro.c -- co-processor interface:  ARM6 Instruction Emulator.
-    Copyright (C) 1994 Advanced RISC Machines Ltd.
+    Copyright (C) 1994, 2000 Advanced RISC Machines Ltd.
  
     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
@@ -16,6 +16,7 @@
     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 
 #include "armdefs.h"
+#include "ansidecl.h"
 
 extern unsigned ARMul_CoProInit (ARMul_State * state);
 extern void ARMul_CoProExit (ARMul_State * state);
@@ -61,7 +62,7 @@ MMUInit (ARMul_State * state)
 }
 
 static unsigned
-MMUMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value)
+MMUMRC (ARMul_State * state ATTRIBUTE_UNUSED, unsigned type ATTRIBUTE_UNUSED, ARMword instr, ARMword * value)
 {
   int reg = BITS (16, 19) & 7;
 
@@ -73,7 +74,7 @@ MMUMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value)
 }
 
 static unsigned
-MMUMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value)
+MMUMCR (ARMul_State * state, unsigned type ATTRIBUTE_UNUSED, ARMword instr, ARMword value)
 {
   int reg = BITS (16, 19) & 7;
 
@@ -91,7 +92,7 @@ MMUMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value)
 
 
 static unsigned
-MMURead (ARMul_State * state, unsigned reg, ARMword * value)
+MMURead (ARMul_State * state ATTRIBUTE_UNUSED, unsigned reg, ARMword * value)
 {
   if (reg == 0)
     *value = 0x41440110;
@@ -131,7 +132,7 @@ I, C and F cyles) */
 static ARMword ValReg[16];
 
 static unsigned
-ValLDC (ARMul_State * state, unsigned type, ARMword instr, ARMword data)
+ValLDC (ARMul_State * state ATTRIBUTE_UNUSED, unsigned type, ARMword instr, ARMword data)
 {
   static unsigned words;
 
@@ -156,7 +157,7 @@ ValLDC (ARMul_State * state, unsigned type, ARMword instr, ARMword data)
 }
 
 static unsigned
-ValSTC (ARMul_State * state, unsigned type, ARMword instr, ARMword * data)
+ValSTC (ARMul_State * state ATTRIBUTE_UNUSED, unsigned type, ARMword instr, ARMword * data)
 {
   static unsigned words;
 
@@ -181,14 +182,14 @@ ValSTC (ARMul_State * state, unsigned type, ARMword instr, ARMword * data)
 }
 
 static unsigned
-ValMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value)
+ValMRC (ARMul_State * state ATTRIBUTE_UNUSED, unsigned type ATTRIBUTE_UNUSED, ARMword instr, ARMword * value)
 {
   *value = ValReg[BITS (16, 19)];
   return (ARMul_DONE);
 }
 
 static unsigned
-ValMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value)
+ValMCR (ARMul_State * state ATTRIBUTE_UNUSED, unsigned type ATTRIBUTE_UNUSED, ARMword instr, ARMword value)
 {
   ValReg[BITS (16, 19)] = value;
   return (ARMul_DONE);
@@ -392,19 +393,29 @@ ARMul_CoProDetach (ARMul_State * state, unsigned number)
 \***************************************************************************/
 
 static unsigned
-NoCoPro3R (ARMul_State * state, unsigned a, ARMword b)
+NoCoPro3R (ARMul_State * state ATTRIBUTE_UNUSED,
+	   unsigned a ATTRIBUTE_UNUSED,
+	   ARMword b ATTRIBUTE_UNUSED)
 {
   return (ARMul_CANT);
 }
 
 static unsigned
-NoCoPro4R (ARMul_State * state, unsigned a, ARMword b, ARMword c)
+NoCoPro4R (
+	   ARMul_State * state ATTRIBUTE_UNUSED,
+	   unsigned a ATTRIBUTE_UNUSED,
+	   ARMword b ATTRIBUTE_UNUSED,
+	   ARMword c ATTRIBUTE_UNUSED)
 {
   return (ARMul_CANT);
 }
 
 static unsigned
-NoCoPro4W (ARMul_State * state, unsigned a, ARMword b, ARMword * c)
+NoCoPro4W (
+	   ARMul_State * state ATTRIBUTE_UNUSED,
+	   unsigned a ATTRIBUTE_UNUSED,
+	   ARMword b ATTRIBUTE_UNUSED,
+	   ARMword * c ATTRIBUTE_UNUSED)
 {
   return (ARMul_CANT);
 }
diff --git a/sim/arm/armdefs.h b/sim/arm/armdefs.h
index 7b63a8ffc4e..bce638dfe4d 100644
--- a/sim/arm/armdefs.h
+++ b/sim/arm/armdefs.h
@@ -372,3 +372,9 @@ pascal void SpinCursor (short increment);	/* copied from CursorCtl.h */
 # define HOURGLASS           SpinCursor( 1 )
 # define HOURGLASS_RATE      1023	/* 2^n - 1 */
 #endif
+
+extern void ARMul_UndefInstr      (ARMul_State *, ARMword);
+extern void ARMul_FixCPSR         (ARMul_State *, ARMword, ARMword);
+extern void ARMul_FixSPSR         (ARMul_State *, ARMword, ARMword);
+extern void ARMul_ConsolePrint    (ARMul_State *, const char *, ...);
+extern void ARMul_SelectProcessor (ARMul_State *, unsigned);
diff --git a/sim/arm/armemu.c b/sim/arm/armemu.c
index bf0cb3b4f6b..83853f1599c 100644
--- a/sim/arm/armemu.c
+++ b/sim/arm/armemu.c
@@ -279,11 +279,11 @@ ARMul_Emulate26 (register ARMul_State * state)
 {
 #endif
   register ARMword instr,	/* the current instruction */
-    dest,			/* almost the DestBus */
+    dest = 0,			/* almost the DestBus */
     temp,			/* ubiquitous third hand */
-    pc;				/* the address of the current instruction */
+    pc = 0;			/* the address of the current instruction */
   ARMword lhs, rhs;		/* almost the ABus and BBus */
-  ARMword decoded, loaded;	/* instruction pipeline */
+  ARMword decoded = 0, loaded = 0;	/* instruction pipeline */
 
 /***************************************************************************\
 *                        Execute the next instruction                       *
@@ -2628,7 +2628,7 @@ ARMul_Emulate26 (register ARMul_State * state)
 #ifdef MODE32
 	      state->Reg[14] = pc + 4;	/* put PC into Link */
 #else
-	      state->Reg[14] = pc + 4 | ECC | ER15INT | EMODE;	/* put PC into Link */
+	      state->Reg[14] = (pc + 4) | ECC | ER15INT | EMODE;	/* put PC into Link */
 #endif
 	      state->Reg[15] = pc + 8 + POSBRANCH;
 	      FLUSHPIPE;
@@ -3742,7 +3742,7 @@ static unsigned
 Multiply64 (ARMul_State * state, ARMword instr, int msigned, int scc)
 {
   int nRdHi, nRdLo, nRs, nRm;	/* operand register numbers */
-  ARMword RdHi, RdLo, Rm;
+  ARMword RdHi = 0, RdLo = 0, Rm;
   int scount;			/* cycle count */
 
   nRdHi = BITS (16, 19);
@@ -3809,7 +3809,6 @@ Multiply64 (ARMul_State * state, ARMword instr, int msigned, int scc)
 
       state->Reg[nRdLo] = RdLo;
       state->Reg[nRdHi] = RdHi;
-
     }				/* else undefined result */
   else
     fprintf (stderr, "MULTIPLY64 - INVALID ARGUMENTS\n");
diff --git a/sim/arm/armemu.h b/sim/arm/armemu.h
index 47238a81477..b80c4ef2e70 100644
--- a/sim/arm/armemu.h
+++ b/sim/arm/armemu.h
@@ -170,8 +170,8 @@ extern ARMword isize;
                         ASSIGNV((state->Reg[15] & VBIT) != 0) ; \
                         } \
                      else { \
-                        state->Reg[15] = R15PC | (s) & (CCBITS | R15INTBITS | R15MODEBITS) ; \
-                        ARMul_R15Altered(state) ; \
+                        state->Reg[15] = R15PC | ((s) & (CCBITS | R15INTBITS | R15MODEBITS)) ; \
+                        ARMul_R15Altered (state) ; \
                         }
 #define SETABORT(i,m) state->Cpsr = ECC | EINT | (i) | (m)
 
diff --git a/sim/arm/armos.c b/sim/arm/armos.c
index 3095f57a5a0..67dd51c16a3 100644
--- a/sim/arm/armos.c
+++ b/sim/arm/armos.c
@@ -23,6 +23,7 @@ fun, and definign VAILDATE will define SWI 1 to enter SVC mode, and SWI
 0x11 to halt the emulator. */
 
 #include "config.h"
+#include "ansidecl.h"
 
 #include <time.h>
 #include <errno.h>
@@ -94,11 +95,6 @@ extern ARMword ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr);
 #endif
 #define UNIQUETEMPS 256
 
-#ifndef NOOS
-static void UnwindDataAbort (ARMul_State * state, ARMword addr);
-static void getstring (ARMul_State * state, ARMword from, char *to);
-#endif
-
 /***************************************************************************\
 *                          OS private Information                           *
 \***************************************************************************/
@@ -127,9 +123,9 @@ struct OSblock
 #define FIXCRLF(t,c) c
 #endif
 
-static ARMword softvectorcode[] = {	/* basic: swi tidyexception + event; mov pc, lr;
-					   ldmia r11,{r11,pc}; swi generateexception + event
-					 */
+static ARMword softvectorcode[] =
+{	/* basic: swi tidyexception + event; mov pc, lr;
+	   ldmia r11,{r11,pc}; swi generateexception  + event.  */
   0xef000090, 0xe1a0e00f, 0xe89b8800, 0xef000080,	/*Reset */
   0xef000091, 0xe1a0e00f, 0xe89b8800, 0xef000081,	/*Undef */
   0xef000092, 0xe1a0e00f, 0xe89b8800, 0xef000082,	/*SWI  */
@@ -137,8 +133,8 @@ static ARMword softvectorcode[] = {	/* basic: swi tidyexception + event; mov pc,
   0xef000094, 0xe1a0e00f, 0xe89b8800, 0xef000084,	/*Data abort */
   0xef000095, 0xe1a0e00f, 0xe89b8800, 0xef000085,	/*Address exception */
   0xef000096, 0xe1a0e00f, 0xe89b8800, 0xef000086, /*IRQ*/
-    0xef000097, 0xe1a0e00f, 0xe89b8800, 0xef000087, /*FIQ*/
-    0xef000098, 0xe1a0e00f, 0xe89b8800, 0xef000088,	/*Error */
+  0xef000097, 0xe1a0e00f, 0xe89b8800, 0xef000087, /*FIQ*/
+  0xef000098, 0xe1a0e00f, 0xe89b8800, 0xef000088,	/*Error */
   0xe1a0f00e			/* default handler */
 };
 
@@ -207,7 +203,7 @@ ARMul_OSInit (ARMul_State * state)
   ARMul_WriteWord (state, 4, FPENEWVECT (ARMul_ReadWord (state, i - 4)));	/* install new vector */
   ARMul_ConsolePrint (state, ", FPE");
 
-/* #endif /* ASIM */
+/* #endif  ASIM */
 #endif /* VALIDATE */
 #endif /* NOOS */
 
@@ -230,9 +226,6 @@ ARMword ARMul_OSLastErrorP (ARMul_State * state)
   return ((struct OSblock *) state->OSptr)->ErrorP;
 }
 
-#if 1				/* CYGNUS LOCAL */
-/* This is the cygnus way of doing it, which makes it simple to do our tests */
-
 static int translate_open_mode[] = {
   O_RDONLY,			/* "r"   */
   O_RDONLY + O_BINARY,		/* "rb"  */
@@ -283,7 +276,7 @@ SWIopen (ARMul_State * state, ARMword name, ARMword SWIflags)
   int flags;
   int i;
 
-  for (i = 0; dummy[i] = ARMul_ReadByte (state, name + i); i++)
+  for (i = 0; (dummy[i] = ARMul_ReadByte (state, name + i)); i++)
     ;
 
   /* Now we need to decode the Demon open mode */
@@ -314,7 +307,7 @@ SWIread (ARMul_State * state, ARMword f, ARMword ptr, ARMword len)
 
   if (local == NULL)
     {
-      fprintf (stderr, "sim: Unable to read 0x%x bytes - out of memory\n",
+      fprintf (stderr, "sim: Unable to read 0x%ulx bytes - out of memory\n",
 	       len);
       return;
     }
@@ -333,13 +326,13 @@ SWIwrite (ARMul_State * state, ARMword f, ARMword ptr, ARMword len)
 {
   struct OSblock *OSptr = (struct OSblock *) state->OSptr;
   int res;
-  int i;
+  ARMword i;
   char *local = malloc (len);
 
   if (local == NULL)
     {
-      fprintf (stderr, "sim: Unable to write 0x%x bytes - out of memory\n",
-	       len);
+      fprintf (stderr, "sim: Unable to write 0x%lx bytes - out of memory\n",
+	       (long) len);
       return;
     }
 
@@ -366,13 +359,9 @@ SWIflen (ARMul_State * state, ARMword fh)
     }
 
   addr = lseek (fh, 0, SEEK_CUR);
-  if (addr < 0)
-    state->Reg[0] = -1L;
-  else
-    {
-      state->Reg[0] = lseek (fh, 0L, SEEK_END);
-      (void) lseek (fh, addr, SEEK_SET);
-    }
+
+  state->Reg[0] = lseek (fh, 0L, SEEK_END);
+  (void) lseek (fh, addr, SEEK_SET);
 
   OSptr->ErrorNo = errno;
 }
@@ -385,9 +374,7 @@ SWIflen (ARMul_State * state, ARMword fh)
 unsigned
 ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
 {
-  ARMword addr, temp, fildes;
-  char buffer[BUFFERSIZE], *cptr;
-  FILE *fptr;
+  ARMword addr, temp;
   struct OSblock *OSptr = (struct OSblock *) state->OSptr;
 
   switch (number)
@@ -562,7 +549,7 @@ ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
 	  else
 	    state->Reg[0] = -1;
 	  state->Emulate = FALSE;
-	  return (TRUE);
+	  return TRUE;
 
 	case ADP_Stopped_ApplicationExit:
 	  state->Reg[0] = 0;
@@ -605,535 +592,6 @@ ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
     }
 }
 
-#else /* CYGNUS LOCAL: #if 1 */
-
-unsigned
-ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
-{
-#ifdef NOOS
-  return (FALSE);
-#else
-#ifdef VALIDATE
-  switch (number)
-    {
-    case 0x11:
-      state->Emulate = FALSE;
-      return (TRUE);
-    case 0x01:
-      if (ARM32BITMODE)
-	ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x13);
-      else
-	ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x3);
-      return (TRUE);
-    default:
-      return (FALSE);
-    }
-#else
-  ARMword addr, temp;
-  char buffer[BUFFERSIZE], *cptr;
-  FILE *fptr;
-  struct OSblock *OSptr = (struct OSblock *) state->OSptr;
-
-  switch (number)
-    {
-    case SWI_WriteC:
-      (void) fputc ((int) state->Reg[0], stderr);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_Write0:
-      addr = state->Reg[0];
-      while ((temp = ARMul_ReadByte (state, addr++)) != 0)
-	fputc ((char) temp, stderr);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_ReadC:
-      state->Reg[0] = (ARMword) fgetc (stdin);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_CLI:
-      addr = state->Reg[0];
-      getstring (state, state->Reg[0], buffer);
-      state->Reg[0] = (ARMword) system (buffer);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_GetEnv:
-      state->Reg[0] = ADDRCMDLINE;
-      if (state->MemSize)
-	state->Reg[1] = state->MemSize;
-      else
-	state->Reg[1] = ADDRUSERSTACK;
-
-      addr = state->Reg[0];
-      cptr = state->CommandLine;
-      if (cptr == NULL)
-	cptr = "\0";
-      do
-	{
-	  temp = (ARMword) * cptr++;
-	  ARMul_WriteByte (state, addr++, temp);
-	}
-      while (temp != 0);
-      return (TRUE);
-
-    case SWI_Exit:
-#ifdef ASIM
-      simkernel1_abort_run ();
-#else
-      state->Emulate = FALSE;
-#endif
-      return (TRUE);
-
-    case SWI_EnterOS:
-      if (ARM32BITMODE)
-	ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x13);
-      else
-	ARMul_SetCPSR (state, (ARMul_GetCPSR (state) & 0xffffffc0) | 0x3);
-      return (TRUE);
-
-    case SWI_GetErrno:
-      state->Reg[0] = OSptr->ErrorNo;
-      return (TRUE);
-
-    case SWI_Clock:
-      /* return muber of centi-seconds... */
-      state->Reg[0] =
-#ifdef CLOCKS_PER_SEC
-	(CLOCKS_PER_SEC >= 100)
-	? (ARMword) (clock () / (CLOCKS_PER_SEC / 100))
-	: (ARMword) ((clock () * 100) / CLOCKS_PER_SEC);
-#else
-	/* presume unix... clock() returns microseconds */
-	(ARMword) (clock () / 10000);
-#endif
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_Time:
-      state->Reg[0] = (ARMword) time (NULL);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_Remove:
-      getstring (state, state->Reg[0], buffer);
-      state->Reg[0] = unlink (buffer);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_Rename:
-      {
-	char buffer2[BUFFERSIZE];
-
-	getstring (state, state->Reg[0], buffer);
-	getstring (state, state->Reg[1], buffer2);
-	state->Reg[0] = rename (buffer, buffer2);
-	OSptr->ErrorNo = errno;
-	return (TRUE);
-      }
-
-    case SWI_Open:
-      {
-#if 0
-	/* It seems to me that these are in the wrong order
-	   sac@cygnus.com, so I've redone it to use the
-	   flags instead, with the functionality which was already
-	   there -- ahh, perhaps the TRUNC bit is in a different
-	   place on the original host ? */
-	static char *fmode[] = { "r", "rb", "r+", "r+b",
-	  "w", "wb", "w+", "w+b",
-	  "a", "ab", "a+", "a+b",
-	  "r", "r", "r", "r"
-	} /* last 4 are illegal */ ;
-#endif
-
-	unsigned type;
-
-	type = (unsigned) (state->Reg[1] & 3L);
-	getstring (state, state->Reg[0], buffer);
-	if (strcmp (buffer, ":tt") == 0 && (type == O_RDONLY))	/* opening tty "r" */
-	  fptr = stdin;
-	else if (strcmp (buffer, ":tt") == 0 && (type == O_WRONLY))	/* opening tty "w" */
-	  fptr = stderr;
-	else
-	  {
-	    switch (type)
-	      {
-	      case O_RDONLY:
-		fptr = fopen (buffer, "r");
-		break;
-	      case O_WRONLY:
-		fptr = fopen (buffer, "w");
-		break;
-	      case O_RDWR:
-		fptr = fopen (buffer, "rw");
-		break;
-	      }
-	  }
-
-	state->Reg[0] = 0;
-	if (fptr != NULL)
-	  {
-	    for (temp = 0; temp < FOPEN_MAX; temp++)
-	      if (OSptr->FileTable[temp] == NULL)
-		{
-		  OSptr->FileTable[temp] = fptr;
-		  OSptr->FileFlags[temp] = type & 1;	/* preserve the binary bit */
-		  state->Reg[0] = (ARMword) (temp + 1);
-		  break;
-		}
-	    if (state->Reg[0] == 0)
-	      OSptr->ErrorNo = EMFILE;	/* too many open files */
-	    else
-	      OSptr->ErrorNo = errno;
-	  }
-	else
-	  OSptr->ErrorNo = errno;
-	return (TRUE);
-      }
-
-    case SWI_Close:
-      temp = state->Reg[0];
-      if (temp == 0 || temp > FOPEN_MAX || OSptr->FileTable[temp - 1] == 0)
-	{
-	  OSptr->ErrorNo = EBADF;
-	  state->Reg[0] = -1L;
-	  return (TRUE);
-	}
-      temp--;
-      fptr = OSptr->FileTable[temp];
-      if (fptr == stdin || fptr == stderr)
-	state->Reg[0] = 0;
-      else
-	state->Reg[0] = fclose (fptr);
-      OSptr->FileTable[temp] = NULL;
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_Write:
-      {
-	unsigned size, upto, type;
-	char ch;
-
-	temp = state->Reg[0];
-	if (temp == 0 || temp > FOPEN_MAX || OSptr->FileTable[temp - 1] == 0)
-	  {
-	    OSptr->ErrorNo = EBADF;
-	    state->Reg[0] = -1L;
-	    return (TRUE);
-	  }
-	temp--;
-	fptr = OSptr->FileTable[temp];
-	type = OSptr->FileFlags[temp];
-	addr = state->Reg[1];
-	size = (unsigned) state->Reg[2];
-
-	if (type & READOP)
-	  fseek (fptr, 0L, SEEK_CUR);
-	OSptr->FileFlags[temp] = (type & BINARY) | WRITEOP;;
-	while (size > 0)
-	  {
-	    if (size >= BUFFERSIZE)
-	      upto = BUFFERSIZE;
-	    else
-	      upto = size;
-	    for (cptr = buffer; (cptr - buffer) < upto; cptr++)
-	      {
-		ch = (char) ARMul_ReadByte (state, (ARMword) addr++);
-		*cptr = FIXCRLF (type, ch);
-	      }
-	    temp = fwrite (buffer, 1, upto, fptr);
-	    if (temp < upto)
-	      {
-		state->Reg[0] = (ARMword) (size - temp);
-		OSptr->ErrorNo = errno;
-		return (TRUE);
-	      }
-	    size -= upto;
-	  }
-	state->Reg[0] = 0;
-	OSptr->ErrorNo = errno;
-	return (TRUE);
-      }
-
-    case SWI_Read:
-      {
-	unsigned size, upto, type;
-	char ch;
-
-	temp = state->Reg[0];
-	if (temp == 0 || temp > FOPEN_MAX || OSptr->FileTable[temp - 1] == 0)
-	  {
-	    OSptr->ErrorNo = EBADF;
-	    state->Reg[0] = -1L;
-	    return (TRUE);
-	  }
-	temp--;
-	fptr = OSptr->FileTable[temp];
-	addr = state->Reg[1];
-	size = (unsigned) state->Reg[2];
-	type = OSptr->FileFlags[temp];
-
-	if (type & WRITEOP)
-	  fseek (fptr, 0L, SEEK_CUR);
-	OSptr->FileFlags[temp] = (type & BINARY) | READOP;;
-	while (size > 0)
-	  {
-	    if (isatty_ (fptr))
-	      {
-		upto = (size >= BUFFERSIZE) ? BUFFERSIZE : size + 1;
-		if (fgets (buffer, upto, fptr) != 0)
-		  temp = strlen (buffer);
-		else
-		  temp = 0;
-		upto--;		/* 1 char used for terminating null */
-	      }
-	    else
-	      {
-		upto = (size >= BUFFERSIZE) ? BUFFERSIZE : size;
-		temp = fread (buffer, 1, upto, fptr);
-	      }
-	    for (cptr = buffer; (cptr - buffer) < temp; cptr++)
-	      {
-		ch = *cptr;
-		ARMul_WriteByte (state, (ARMword) addr++, FIXCRLF (type, ch));
-	      }
-	    if (temp < upto)
-	      {
-		state->Reg[0] = (ARMword) (size - temp);
-		OSptr->ErrorNo = errno;
-		return (TRUE);
-	      }
-	    size -= upto;
-	  }
-	state->Reg[0] = 0;
-	OSptr->ErrorNo = errno;
-	return (TRUE);
-      }
-
-    case SWI_Seek:
-      if (state->Reg[0] == 0 || state->Reg[0] > FOPEN_MAX
-	  || OSptr->FileTable[state->Reg[0] - 1] == 0)
-	{
-	  OSptr->ErrorNo = EBADF;
-	  state->Reg[0] = -1L;
-	  return (TRUE);
-	}
-      fptr = OSptr->FileTable[state->Reg[0] - 1];
-      state->Reg[0] = fseek (fptr, (long) state->Reg[1], SEEK_SET);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_Flen:
-      if (state->Reg[0] == 0 || state->Reg[0] > FOPEN_MAX
-	  || OSptr->FileTable[state->Reg[0] - 1] == 0)
-	{
-	  OSptr->ErrorNo = EBADF;
-	  state->Reg[0] = -1L;
-	  return (TRUE);
-	}
-      fptr = OSptr->FileTable[state->Reg[0] - 1];
-      addr = (ARMword) ftell (fptr);
-      if (fseek (fptr, 0L, SEEK_END) < 0)
-	state->Reg[0] = -1;
-      else
-	{
-	  state->Reg[0] = (ARMword) ftell (fptr);
-	  (void) fseek (fptr, addr, SEEK_SET);
-	}
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_IsTTY:
-      if (state->Reg[0] == 0 || state->Reg[0] > FOPEN_MAX
-	  || OSptr->FileTable[state->Reg[0] - 1] == 0)
-	{
-	  OSptr->ErrorNo = EBADF;
-	  state->Reg[0] = -1L;
-	  return (TRUE);
-	}
-      fptr = OSptr->FileTable[state->Reg[0] - 1];
-      state->Reg[0] = isatty_ (fptr);
-      OSptr->ErrorNo = errno;
-      return (TRUE);
-
-    case SWI_TmpNam:
-      {
-	ARMword size;
-
-	addr = state->Reg[0];
-	temp = state->Reg[1] & 0xff;
-	size = state->Reg[2];
-	if (OSptr->tempnames[temp] == NULL)
-	  {
-	    if ((OSptr->tempnames[temp] = malloc (L_tmpnam)) == NULL)
-	      {
-		state->Reg[0] = 0;
-		return (TRUE);
-	      }
-	    (void) tmpnam (OSptr->tempnames[temp]);
-	  }
-	cptr = OSptr->tempnames[temp];
-	if (strlen (cptr) > state->Reg[2])
-	  state->Reg[0] = 0;
-	else
-	  do
-	    {
-	      ARMul_WriteByte (state, addr++, *cptr);
-	    }
-	  while (*cptr++ != 0);
-	OSptr->ErrorNo = errno;
-	return (TRUE);
-      }
-
-    case SWI_InstallHandler:
-      {
-	ARMword handlerp = ADDRSOFHANDLERS + state->Reg[0] * 8;
-	ARMword oldr1 = ARMul_ReadWord (state, handlerp),
-	  oldr2 = ARMul_ReadWord (state, handlerp + 4);
-	ARMul_WriteWord (state, handlerp, state->Reg[1]);
-	ARMul_WriteWord (state, handlerp + 4, state->Reg[2]);
-	state->Reg[1] = oldr1;
-	state->Reg[2] = oldr2;
-	return (TRUE);
-      }
-
-    case SWI_GenerateError:
-      ARMul_Abort (state, ARMSWIV);
-      if (state->Emulate)
-	ARMul_SetR15 (state,
-		      ARMul_ReadWord (state, ADDRSOFTVECTORS + ARMErrorV));
-      return (TRUE);
-
-/* SWI's 0x9x unwind the state of the CPU after an abort of type x */
-
-    case 0x90:			/* Branch through zero */
-      {
-	ARMword oldpsr = ARMul_GetCPSR (state);
-	ARMul_SetCPSR (state, (oldpsr & 0xffffffc0) | 0x13);
-	ARMul_SetSPSR (state, SVC32MODE, oldpsr);
-	state->Reg[14] = 0;
-	goto TidyCommon;
-      }
-
-    case 0x98:			/* Error */
-      {
-	ARMword errorp = state->Reg[0], regp = state->Reg[1];
-	unsigned i;
-	ARMword errorpsr = ARMul_ReadWord (state, regp + 16 * 4);
-	for (i = 0; i < 15; i++)
-	  ARMul_SetReg (state, errorpsr, i,
-			ARMul_ReadWord (state, regp + i * 4L));
-	state->Reg[14] = ARMul_ReadWord (state, regp + 15 * 4L);
-	state->Reg[10] = errorp;
-	ARMul_SetSPSR (state, state->Mode, errorpsr);
-	OSptr->ErrorP = errorp;
-	goto TidyCommon;
-      }
-
-    case 0x94:			/* Data abort */
-      {
-	ARMword addr = state->Reg[14] - 8;
-	ARMword cpsr = ARMul_GetCPSR (state);
-	if (ARM26BITMODE)
-	  addr = addr & 0x3fffffc;
-	ARMul_SetCPSR (state, ARMul_GetSPSR (state, cpsr));
-	UnwindDataAbort (state, addr);
-	if (addr >= FPESTART && addr < FPEEND)
-	  {			/* in the FPE */
-	    ARMword sp, spsr;
-	    unsigned i;
-
-	    sp = state->Reg[13];
-	    state->Reg[13] += 64;	/* fix the aborting mode sp */
-	    state->Reg[14] = ARMul_ReadWord (state, sp + 60);	/* and its lr */
-	    spsr = ARMul_GetSPSR (state, state->Mode);
-	    state->Mode = ARMul_SwitchMode (state, state->Mode, spsr);
-	    for (i = 0; i < 15; i++)
-	      {
-		ARMul_SetReg (state, spsr, i, ARMul_ReadWord (state, sp));
-		sp += 4;
-	      }
-	    ARMul_SetCPSR (state, cpsr);
-	    state->Reg[14] = ARMul_ReadWord (state, sp) + 4;	/* botch it */
-	    ARMul_SetSPSR (state, state->Mode, spsr);
-	  }
-	else
-	  ARMul_SetCPSR (state, cpsr);
-
-	/* and fall through to correct r14 */
-      }
-    case 0x95:			/* Address Exception */
-      state->Reg[14] -= 4;
-    case 0x91:			/* Undefined instruction */
-    case 0x92:			/* SWI */
-    case 0x93:			/* Prefetch abort */
-    case 0x96:			/* IRQ */
-    case 0x97:			/* FIQ */
-      state->Reg[14] -= 4;
-    TidyCommon:
-      if (state->VectorCatch & (1 << (number - 0x90)))
-	{
-	  ARMul_SetR15 (state, state->Reg[14] + 8);	/* the 8 is the pipelining the the RDI will undo */
-	  ARMul_SetCPSR (state, ARMul_GetSPSR (state, ARMul_GetCPSR (state)));
-	  if (number == 0x90)
-	    state->EndCondition = 10;	/* Branch through Zero Error */
-	  else
-	    state->EndCondition = (unsigned) number - 0x8f;
-	  state->Emulate = FALSE;
-	}
-      else
-	{
-	  ARMword sp = state->Reg[13];
-	  ARMul_WriteWord (state, sp - 4, state->Reg[14]);
-	  ARMul_WriteWord (state, sp - 8, state->Reg[12]);
-	  ARMul_WriteWord (state, sp - 12, state->Reg[11]);
-	  ARMul_WriteWord (state, sp - 16, state->Reg[10]);
-	  state->Reg[13] = sp - 16;
-	  state->Reg[11] = ADDRSOFHANDLERS + 8 * (number - 0x90);
-	}
-      return (TRUE);
-
-/* SWI's 0x8x pass an abort of type x to the debugger if a handler returns */
-
-    case 0x80:
-    case 0x81:
-    case 0x82:
-    case 0x83:
-    case 0x84:
-    case 0x85:
-    case 0x86:
-    case 0x87:
-    case 0x88:
-      {
-	ARMword sp = state->Reg[13];
-	state->Reg[10] = ARMul_ReadWord (state, sp);
-	state->Reg[11] = ARMul_ReadWord (state, sp + 4);
-	state->Reg[12] = ARMul_ReadWord (state, sp + 8);
-	state->Reg[14] = ARMul_ReadWord (state, sp + 12);
-	state->Reg[13] = sp + 16;
-	ARMul_SetR15 (state, state->Reg[14] + 8);	/* the 8 is the pipelining the the RDI will undo */
-	ARMul_SetCPSR (state, ARMul_GetSPSR (state, ARMul_GetCPSR (state)));
-	if (number == 0x80)
-	  state->EndCondition = 10;	/* Branch through Zero Error */
-	else
-	  state->EndCondition = (unsigned) number - 0x7f;
-	state->Emulate = FALSE;
-	return (TRUE);
-      }
-
-    default:
-      state->Emulate = FALSE;
-      return (FALSE);
-    }
-#endif
-#endif
-}
-
-#endif /* CYGNUS LOCAL: #if 1 */
-
 #ifndef NOOS
 #ifndef ASIM
 
@@ -1145,64 +603,12 @@ ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
 \***************************************************************************/
 
 unsigned
-ARMul_OSException (ARMul_State * state, ARMword vector, ARMword pc)
+ARMul_OSException (ARMul_State * state ATTRIBUTE_UNUSED, ARMword vector ATTRIBUTE_UNUSED, ARMword pc ATTRIBUTE_UNUSED)
 {				/* don't use this here */
   return (FALSE);
 }
 
 #endif
 
-/***************************************************************************\
-*                            Unwind a data abort                            *
-\***************************************************************************/
-
-static void
-UnwindDataAbort (ARMul_State * state, ARMword addr)
-{
-  ARMword instr = ARMul_ReadWord (state, addr);
-  ARMword rn = BITS (16, 19);
-  ARMword itype = BITS (24, 27);
-  ARMword offset;
-  if (rn == 15)
-    return;
-  if (itype == 8 || itype == 9)
-    {
-      /* LDM or STM */
-      unsigned long regs = BITS (0, 15);
-      offset = 0;
-      if (!BIT (21))
-	return;			/* no wb */
-      for (; regs != 0; offset++)
-	regs ^= (regs & -regs);
-      if (offset == 0)
-	offset = 16;
-    }
-  else if (itype == 12 ||	/* post-indexed CPDT */
-	   (itype == 13 && BIT (21)))
-    {				/* pre_indexed CPDT with WB */
-      offset = BITS (0, 7);
-    }
-  else
-    return;
-
-  if (BIT (23))
-    state->Reg[rn] -= offset * 4;
-  else
-    state->Reg[rn] += offset * 4;
-}
-
-/***************************************************************************\
-*           Copy a string from the debuggee's memory to the host's          *
-\***************************************************************************/
-
-static void
-getstring (ARMul_State * state, ARMword from, char *to)
-{
-  do
-    {
-      *to = (char) ARMul_ReadByte (state, from++);
-    }
-  while (*to++ != '\0');
-}
 
 #endif /* NOOS */
diff --git a/sim/arm/armsupp.c b/sim/arm/armsupp.c
index 5ffdae9ad7b..154d520d216 100644
--- a/sim/arm/armsupp.c
+++ b/sim/arm/armsupp.c
@@ -17,6 +17,7 @@
 
 #include "armdefs.h"
 #include "armemu.h"
+#include "ansidecl.h"
 
 /***************************************************************************\
 *                    Definitions for the support routines                   *
@@ -33,10 +34,8 @@ void ARMul_SetR15 (ARMul_State * state, ARMword value);
 
 ARMword ARMul_GetCPSR (ARMul_State * state);
 void ARMul_SetCPSR (ARMul_State * state, ARMword value);
-void ARMul_FixCPSR (ARMul_State * state, ARMword instr, ARMword rhs);
 ARMword ARMul_GetSPSR (ARMul_State * state, ARMword mode);
 void ARMul_SetSPSR (ARMul_State * state, ARMword mode, ARMword value);
-void ARMul_FixSPSR (ARMul_State * state, ARMword instr, ARMword rhs);
 
 void ARMul_CPSRAltered (ARMul_State * state);
 void ARMul_R15Altered (ARMul_State * state);
@@ -62,7 +61,6 @@ void ARMul_STC (ARMul_State * state, ARMword instr, ARMword address);
 void ARMul_MCR (ARMul_State * state, ARMword instr, ARMword source);
 ARMword ARMul_MRC (ARMul_State * state, ARMword instr);
 void ARMul_CDP (ARMul_State * state, ARMword instr);
-void ARMul_UndefInstr (ARMul_State * state, ARMword instr);
 unsigned IntPending (ARMul_State * state);
 
 ARMword ARMul_Align (ARMul_State * state, ARMword address, ARMword data);
@@ -417,7 +415,7 @@ ARMul_SwitchMode (ARMul_State * state, ARMword oldmode, ARMword newmode)
 \***************************************************************************/
 
 static ARMword
-ModeToBank (ARMul_State * state, ARMword mode)
+ModeToBank (ARMul_State * state ATTRIBUTE_UNUSED, ARMword mode)
 {
   static ARMword bankofmode[] = { USERBANK, FIQBANK, IRQBANK, SVCBANK,
     DUMMYBANK, DUMMYBANK, DUMMYBANK, DUMMYBANK,
@@ -740,7 +738,7 @@ ARMul_CDP (ARMul_State * state, ARMword instr)
 \***************************************************************************/
 
 void
-ARMul_UndefInstr (ARMul_State * state, ARMword instr)
+ARMul_UndefInstr (ARMul_State * state, ARMword instr ATTRIBUTE_UNUSED)
 {
   ARMul_Abort (state, ARMul_UndefinedInstrV);
 }
@@ -778,9 +776,13 @@ IntPending (ARMul_State * state)
 \***************************************************************************/
 
 ARMword
-ARMul_Align (ARMul_State * state, ARMword address, ARMword data)
-{				/* this code assumes the address is really unaligned,
-				   as a shift by 32 is undefined in C */
+ARMul_Align (state, address, data)
+     ARMul_State * state ATTRIBUTE_UNUSED;
+     ARMword address;
+     ARMword data;
+{
+  /* This code assumes the address is really unaligned,
+     as a shift by 32 is undefined in C.  */
 
   address = (address & 3) << 3;	/* get the word address */
   return ((data >> address) | (data << (32 - address)));	/* rot right */
diff --git a/sim/arm/armvirt.c b/sim/arm/armvirt.c
index ffcebd24e3b..38f0083d2d8 100644
--- a/sim/arm/armvirt.c
+++ b/sim/arm/armvirt.c
@@ -25,6 +25,7 @@ defined to generate aborts. */
 
 #include "armopts.h"
 #include "armdefs.h"
+#include "ansidecl.h"
 
 #ifdef VALIDATE			/* for running the validate suite */
 #define TUBE 48 * 1024 * 1024	/* write a char on the screen */
@@ -462,7 +463,7 @@ ARMword ARMul_SwapByte (ARMul_State * state, ARMword address, ARMword data)
 \***************************************************************************/
 
 void
-ARMul_Icycles (ARMul_State * state, unsigned number, ARMword address)
+ARMul_Icycles (ARMul_State * state, unsigned number, ARMword address ATTRIBUTE_UNUSED)
 {
   state->NumIcycles += number;
   ARMul_CLEARABORT;
@@ -473,7 +474,7 @@ ARMul_Icycles (ARMul_State * state, unsigned number, ARMword address)
 \***************************************************************************/
 
 void
-ARMul_Ccycles (ARMul_State * state, unsigned number, ARMword address)
+ARMul_Ccycles (ARMul_State * state, unsigned number, ARMword address ATTRIBUTE_UNUSED)
 {
   state->NumCcycles += number;
   ARMul_CLEARABORT;
diff --git a/sim/arm/bag.c b/sim/arm/bag.c
index ae91ff18ee3..a09d749b002 100644
--- a/sim/arm/bag.c
+++ b/sim/arm/bag.c
@@ -25,6 +25,7 @@
 /********************************************************************/
 
 #include "bag.h"
+#include <stdlib.h>
 
 #define HASH_TABLE_SIZE 256
 #define hash(x) (((x)&0xff)^(((x)>>8)&0xff)^(((x)>>16)&0xff)^(((x)>>24)&0xff))
@@ -65,8 +66,8 @@ killwholelist (Hashentry * p)
     }
 }
 
-void
-removefromlist (Hashentry ** p, long first, long second)
+static void
+removefromlist (Hashentry ** p, long first)
 {
   Hashentry *q;
 
@@ -134,8 +135,8 @@ BAG_killpair_byfirst (long first)
 
   if (BAG_getsecond (first, &second) == NO_SUCH_PAIR)
     return NO_SUCH_PAIR;
-  removefromlist (&lookupbyfirst[hash (first)], first, second);
-  removefromlist (&lookupbysecond[hash (second)], first, second);
+  removefromlist (&lookupbyfirst[hash (first)], first);
+  removefromlist (&lookupbysecond[hash (second)], first);
   return NO_ERROR;
 }
 
@@ -146,8 +147,8 @@ BAG_killpair_bysecond (long second)
 
   if (BAG_getfirst (&first, second) == NO_SUCH_PAIR)
     return NO_SUCH_PAIR;
-  removefromlist (&lookupbyfirst[hash (first)], first, second);
-  removefromlist (&lookupbysecond[hash (second)], first, second);
+  removefromlist (&lookupbyfirst[hash (first)], first);
+  removefromlist (&lookupbysecond[hash (second)], first);
   return NO_ERROR;
 }
 
diff --git a/sim/arm/wrapper.c b/sim/arm/wrapper.c
index 8ac6f80428e..396c90d8c4f 100644
--- a/sim/arm/wrapper.c
+++ b/sim/arm/wrapper.c
@@ -23,6 +23,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <string.h>
 #include <bfd.h>
 #include <signal.h>
 #include "callback.h"
@@ -30,6 +31,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "armdefs.h"
 #include "armemu.h"
 #include "dbg_rdi.h"
+#include "ansidecl.h"
 
 host_callback *sim_callback;
 
@@ -106,14 +108,15 @@ ARMul_ConsolePrint (ARMul_State * state, const char *format, ...)
     }
 }
 
-ARMword ARMul_Debug (ARMul_State * state, ARMword pc, ARMword instr)
+ARMword
+ARMul_Debug (ARMul_State * state ATTRIBUTE_UNUSED, ARMword pc ATTRIBUTE_UNUSED, ARMword instr ATTRIBUTE_UNUSED)
 {
-
+  return 0;
 }
 
 int
 sim_write (sd, addr, buffer, size)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
      SIM_ADDR addr;
      unsigned char *buffer;
      int size;
@@ -129,7 +132,7 @@ sim_write (sd, addr, buffer, size)
 
 int
 sim_read (sd, addr, buffer, size)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
      SIM_ADDR addr;
      unsigned char *buffer;
      int size;
@@ -145,7 +148,7 @@ sim_read (sd, addr, buffer, size)
 
 int
 sim_trace (sd)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
 {  
   (*sim_callback->printf_filtered) (sim_callback,
 				    "This simulator does not support tracing\n");
@@ -154,7 +157,7 @@ sim_trace (sd)
 
 int
 sim_stop (sd)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
 {
   state->Emulate = STOP;
   stop_simulator = 1;
@@ -163,8 +166,9 @@ sim_stop (sd)
 
 void
 sim_resume (sd, step, siggnal)
-     SIM_DESC sd;
-     int step, siggnal;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
+     int step;
+     int siggnal ATTRIBUTE_UNUSED;
 {
   state->EndCondition = 0;
   stop_simulator = 0;
@@ -188,7 +192,7 @@ sim_resume (sd, step, siggnal)
 
 SIM_RC
 sim_create_inferior (sd, abfd, argv, env)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
      struct _bfd *abfd;
      char **argv;
      char **env;
@@ -247,7 +251,6 @@ sim_create_inferior (sd, abfd, argv, env)
 	{
 	  if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0)
 	    {
-	      unsigned long top_of_memory;
 	      char *end_of_num;
 
 	      /* Set up memory limit */
@@ -263,8 +266,8 @@ sim_create_inferior (sd, abfd, argv, env)
 
 void
 sim_info (sd, verbose)
-     SIM_DESC sd;
-     int verbose;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
+     int verbose ATTRIBUTE_UNUSED;
 {
 }
 
@@ -311,10 +314,10 @@ tomem (state, memory, val)
 
 int
 sim_store_register (sd, rn, memory, length)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
      int rn;
      unsigned char *memory;
-     int length;
+     int length ATTRIBUTE_UNUSED;
 {
   init ();
   ARMul_SetReg (state, state->Mode, rn, frommem (state, memory));
@@ -323,10 +326,10 @@ sim_store_register (sd, rn, memory, length)
 
 int
 sim_fetch_register (sd, rn, memory, length)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
      int rn;
      unsigned char *memory;
-     int length;
+     int length ATTRIBUTE_UNUSED;
 {
   ARMword regval;
 
@@ -404,8 +407,8 @@ sim_open (kind, ptr, abfd, argv)
 
 void
 sim_close (sd, quitting)
-     SIM_DESC sd;
-     int quitting;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
+     int quitting ATTRIBUTE_UNUSED;
 {
   /* nothing to do */
 }
@@ -415,7 +418,7 @@ sim_load (sd, prog, abfd, from_tty)
      SIM_DESC sd;
      char *prog;
      bfd *abfd;
-     int from_tty;
+     int from_tty ATTRIBUTE_UNUSED;
 {
   extern bfd *sim_load_file ();	/* ??? Don't know where this should live.  */
   bfd *prog_bfd;
@@ -432,7 +435,7 @@ sim_load (sd, prog, abfd, from_tty)
 
 void
 sim_stop_reason (sd, reason, sigrc)
-     SIM_DESC sd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
      enum sim_stop *reason;
      int *sigrc;
 {
@@ -458,8 +461,8 @@ sim_stop_reason (sd, reason, sigrc)
 
 void
 sim_do_command (sd, cmd)
-     SIM_DESC sd;
-     char *cmd;
+     SIM_DESC sd ATTRIBUTE_UNUSED;
+     char *cmd ATTRIBUTE_UNUSED;
 {  
   (*sim_callback->printf_filtered) (sim_callback,
 				    "This simulator does not accept any commands.\n");