import gdb-1999-07-07 post reformat

1 files changed, 497 insertions, 427 deletions

diff --git a/gdb/symm-nat.c b/gdb/symm-nat.c
index 56e1c67..d1ad863 100644
--- a/gdb/symm-nat.c
+++ b/gdb/symm-nat.c
@@ -1,21 +1,22 @@
 /* Sequent Symmetry host interface, for GDB when running under Unix.
    Copyright 1986, 1987, 1989, 1991, 1992, 1994 Free Software Foundation, Inc.
 
-This file is part of GDB.
+   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 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.
+   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.  */
+   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.  */
 
 /* FIXME, some 387-specific items of use taken from i387-tdep.c -- ought to be
    merged back in. */
@@ -52,8 +53,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "gdbcore.h"
 
 void
-store_inferior_registers(regno)
-int regno;
+store_inferior_registers (regno)
+     int regno;
 {
   struct pt_regset regs;
   int i;
@@ -63,32 +64,32 @@ int regno;
      might cause problems when calling functions in the inferior.
      At least fpu_control and fpa_pcr (probably more) should be added 
      to the registers array to solve this properly.  */
-  mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) &regs, 0);
-
-  regs.pr_eax = *(int *)&registers[REGISTER_BYTE(0)];
-  regs.pr_ebx = *(int *)&registers[REGISTER_BYTE(5)];
-  regs.pr_ecx = *(int *)&registers[REGISTER_BYTE(2)];
-  regs.pr_edx = *(int *)&registers[REGISTER_BYTE(1)];
-  regs.pr_esi = *(int *)&registers[REGISTER_BYTE(6)];
-  regs.pr_edi = *(int *)&registers[REGISTER_BYTE(7)];
-  regs.pr_esp = *(int *)&registers[REGISTER_BYTE(14)];
-  regs.pr_ebp = *(int *)&registers[REGISTER_BYTE(15)];
-  regs.pr_eip = *(int *)&registers[REGISTER_BYTE(16)];
-  regs.pr_flags = *(int *)&registers[REGISTER_BYTE(17)];
+  mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) & regs, 0);
+
+  regs.pr_eax = *(int *) &registers[REGISTER_BYTE (0)];
+  regs.pr_ebx = *(int *) &registers[REGISTER_BYTE (5)];
+  regs.pr_ecx = *(int *) &registers[REGISTER_BYTE (2)];
+  regs.pr_edx = *(int *) &registers[REGISTER_BYTE (1)];
+  regs.pr_esi = *(int *) &registers[REGISTER_BYTE (6)];
+  regs.pr_edi = *(int *) &registers[REGISTER_BYTE (7)];
+  regs.pr_esp = *(int *) &registers[REGISTER_BYTE (14)];
+  regs.pr_ebp = *(int *) &registers[REGISTER_BYTE (15)];
+  regs.pr_eip = *(int *) &registers[REGISTER_BYTE (16)];
+  regs.pr_flags = *(int *) &registers[REGISTER_BYTE (17)];
   for (i = 0; i < 31; i++)
     {
       regs.pr_fpa.fpa_regs[i] =
-	*(int *)&registers[REGISTER_BYTE(FP1_REGNUM+i)];
+	*(int *) &registers[REGISTER_BYTE (FP1_REGNUM + i)];
     }
-  memcpy (regs.pr_fpu.fpu_stack[0], &registers[REGISTER_BYTE(ST0_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[1], &registers[REGISTER_BYTE(ST1_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[2], &registers[REGISTER_BYTE(ST2_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[3], &registers[REGISTER_BYTE(ST3_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[4], &registers[REGISTER_BYTE(ST4_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[5], &registers[REGISTER_BYTE(ST5_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[6], &registers[REGISTER_BYTE(ST6_REGNUM)], 10);
-  memcpy (regs.pr_fpu.fpu_stack[7], &registers[REGISTER_BYTE(ST7_REGNUM)], 10);
-  mptrace (XPT_WREGS, inferior_pid, (PTRACE_ARG3_TYPE) &regs, 0);
+  memcpy (regs.pr_fpu.fpu_stack[0], &registers[REGISTER_BYTE (ST0_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[1], &registers[REGISTER_BYTE (ST1_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[2], &registers[REGISTER_BYTE (ST2_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[3], &registers[REGISTER_BYTE (ST3_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[4], &registers[REGISTER_BYTE (ST4_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[5], &registers[REGISTER_BYTE (ST5_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[6], &registers[REGISTER_BYTE (ST6_REGNUM)], 10);
+  memcpy (regs.pr_fpu.fpu_stack[7], &registers[REGISTER_BYTE (ST7_REGNUM)], 10);
+  mptrace (XPT_WREGS, inferior_pid, (PTRACE_ARG3_TYPE) & regs, 0);
 }
 
 void
@@ -100,240 +101,287 @@ fetch_inferior_registers (regno)
 
   registers_fetched ();
 
-  mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) &regs, 0);
-  *(int *)&registers[REGISTER_BYTE(EAX_REGNUM)] = regs.pr_eax;
-  *(int *)&registers[REGISTER_BYTE(EBX_REGNUM)] = regs.pr_ebx;
-  *(int *)&registers[REGISTER_BYTE(ECX_REGNUM)] = regs.pr_ecx;
-  *(int *)&registers[REGISTER_BYTE(EDX_REGNUM)] = regs.pr_edx;
-  *(int *)&registers[REGISTER_BYTE(ESI_REGNUM)] = regs.pr_esi;
-  *(int *)&registers[REGISTER_BYTE(EDI_REGNUM)] = regs.pr_edi;
-  *(int *)&registers[REGISTER_BYTE(EBP_REGNUM)] = regs.pr_ebp;
-  *(int *)&registers[REGISTER_BYTE(ESP_REGNUM)] = regs.pr_esp;
-  *(int *)&registers[REGISTER_BYTE(EIP_REGNUM)] = regs.pr_eip;
-  *(int *)&registers[REGISTER_BYTE(EFLAGS_REGNUM)] = regs.pr_flags;
+  mptrace (XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) & regs, 0);
+  *(int *) &registers[REGISTER_BYTE (EAX_REGNUM)] = regs.pr_eax;
+  *(int *) &registers[REGISTER_BYTE (EBX_REGNUM)] = regs.pr_ebx;
+  *(int *) &registers[REGISTER_BYTE (ECX_REGNUM)] = regs.pr_ecx;
+  *(int *) &registers[REGISTER_BYTE (EDX_REGNUM)] = regs.pr_edx;
+  *(int *) &registers[REGISTER_BYTE (ESI_REGNUM)] = regs.pr_esi;
+  *(int *) &registers[REGISTER_BYTE (EDI_REGNUM)] = regs.pr_edi;
+  *(int *) &registers[REGISTER_BYTE (EBP_REGNUM)] = regs.pr_ebp;
+  *(int *) &registers[REGISTER_BYTE (ESP_REGNUM)] = regs.pr_esp;
+  *(int *) &registers[REGISTER_BYTE (EIP_REGNUM)] = regs.pr_eip;
+  *(int *) &registers[REGISTER_BYTE (EFLAGS_REGNUM)] = regs.pr_flags;
   for (i = 0; i < FPA_NREGS; i++)
     {
-      *(int *)&registers[REGISTER_BYTE(FP1_REGNUM+i)] =
+      *(int *) &registers[REGISTER_BYTE (FP1_REGNUM + i)] =
 	regs.pr_fpa.fpa_regs[i];
     }
-  memcpy (&registers[REGISTER_BYTE(ST0_REGNUM)], regs.pr_fpu.fpu_stack[0], 10);
-  memcpy (&registers[REGISTER_BYTE(ST1_REGNUM)], regs.pr_fpu.fpu_stack[1], 10);
-  memcpy (&registers[REGISTER_BYTE(ST2_REGNUM)], regs.pr_fpu.fpu_stack[2], 10);
-  memcpy (&registers[REGISTER_BYTE(ST3_REGNUM)], regs.pr_fpu.fpu_stack[3], 10);
-  memcpy (&registers[REGISTER_BYTE(ST4_REGNUM)], regs.pr_fpu.fpu_stack[4], 10);
-  memcpy (&registers[REGISTER_BYTE(ST5_REGNUM)], regs.pr_fpu.fpu_stack[5], 10);
-  memcpy (&registers[REGISTER_BYTE(ST6_REGNUM)], regs.pr_fpu.fpu_stack[6], 10);
-  memcpy (&registers[REGISTER_BYTE(ST7_REGNUM)], regs.pr_fpu.fpu_stack[7], 10);
+  memcpy (&registers[REGISTER_BYTE (ST0_REGNUM)], regs.pr_fpu.fpu_stack[0], 10);
+  memcpy (&registers[REGISTER_BYTE (ST1_REGNUM)], regs.pr_fpu.fpu_stack[1], 10);
+  memcpy (&registers[REGISTER_BYTE (ST2_REGNUM)], regs.pr_fpu.fpu_stack[2], 10);
+  memcpy (&registers[REGISTER_BYTE (ST3_REGNUM)], regs.pr_fpu.fpu_stack[3], 10);
+  memcpy (&registers[REGISTER_BYTE (ST4_REGNUM)], regs.pr_fpu.fpu_stack[4], 10);
+  memcpy (&registers[REGISTER_BYTE (ST5_REGNUM)], regs.pr_fpu.fpu_stack[5], 10);
+  memcpy (&registers[REGISTER_BYTE (ST6_REGNUM)], regs.pr_fpu.fpu_stack[6], 10);
+  memcpy (&registers[REGISTER_BYTE (ST7_REGNUM)], regs.pr_fpu.fpu_stack[7], 10);
 }
 
 /* FIXME:  This should be merged with i387-tdep.c as well. */
 static
-print_fpu_status(ep)
-struct pt_regset ep;
+print_fpu_status (ep)
+     struct pt_regset ep;
 {
-    int i;
-    int bothstatus;
-    int top;
-    int fpreg;
-    unsigned char *p;
-    
-    printf_unfiltered("80387:");
-    if (ep.pr_fpu.fpu_ip == 0) {
-	printf_unfiltered(" not in use.\n");
-	return;
-    } else {
-	printf_unfiltered("\n");
+  int i;
+  int bothstatus;
+  int top;
+  int fpreg;
+  unsigned char *p;
+
+  printf_unfiltered ("80387:");
+  if (ep.pr_fpu.fpu_ip == 0)
+    {
+      printf_unfiltered (" not in use.\n");
+      return;
     }
-    if (ep.pr_fpu.fpu_status != 0) {
-	print_387_status_word (ep.pr_fpu.fpu_status);
+  else
+    {
+      printf_unfiltered ("\n");
+    }
+  if (ep.pr_fpu.fpu_status != 0)
+    {
+      print_387_status_word (ep.pr_fpu.fpu_status);
     }
-    print_387_control_word (ep.pr_fpu.fpu_control);
-    printf_unfiltered ("last exception: ");
-    printf_unfiltered ("opcode 0x%x; ", ep.pr_fpu.fpu_rsvd4);
-    printf_unfiltered ("pc 0x%x:0x%x; ", ep.pr_fpu.fpu_cs, ep.pr_fpu.fpu_ip);
-    printf_unfiltered ("operand 0x%x:0x%x\n", ep.pr_fpu.fpu_data_offset, ep.pr_fpu.fpu_op_sel);
-    
-    top = (ep.pr_fpu.fpu_status >> 11) & 7;
-    
-    printf_unfiltered ("regno  tag  msb              lsb  value\n");
-    for (fpreg = 7; fpreg >= 0; fpreg--) 
+  print_387_control_word (ep.pr_fpu.fpu_control);
+  printf_unfiltered ("last exception: ");
+  printf_unfiltered ("opcode 0x%x; ", ep.pr_fpu.fpu_rsvd4);
+  printf_unfiltered ("pc 0x%x:0x%x; ", ep.pr_fpu.fpu_cs, ep.pr_fpu.fpu_ip);
+  printf_unfiltered ("operand 0x%x:0x%x\n", ep.pr_fpu.fpu_data_offset, ep.pr_fpu.fpu_op_sel);
+
+  top = (ep.pr_fpu.fpu_status >> 11) & 7;
+
+  printf_unfiltered ("regno  tag  msb              lsb  value\n");
+  for (fpreg = 7; fpreg >= 0; fpreg--)
+    {
+      double val;
+
+      printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : "  ", fpreg);
+
+      switch ((ep.pr_fpu.fpu_tag >> (fpreg * 2)) & 3)
 	{
-	    double val;
-	    
-	    printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : "  ", fpreg);
-	    
-	    switch ((ep.pr_fpu.fpu_tag >> (fpreg * 2)) & 3) 
-		{
-		case 0: printf_unfiltered ("valid "); break;
-		case 1: printf_unfiltered ("zero  "); break;
-		case 2: printf_unfiltered ("trap  "); break;
-		case 3: printf_unfiltered ("empty "); break;
-		}
-	    for (i = 9; i >= 0; i--)
-		printf_unfiltered ("%02x", ep.pr_fpu.fpu_stack[fpreg][i]);
-	    
-	    i387_to_double ((char *)ep.pr_fpu.fpu_stack[fpreg], (char *)&val);
-	    printf_unfiltered ("  %g\n", val);
+	case 0:
+	  printf_unfiltered ("valid ");
+	  break;
+	case 1:
+	  printf_unfiltered ("zero  ");
+	  break;
+	case 2:
+	  printf_unfiltered ("trap  ");
+	  break;
+	case 3:
+	  printf_unfiltered ("empty ");
+	  break;
 	}
-    if (ep.pr_fpu.fpu_rsvd1)
-	warning ("rsvd1 is 0x%x\n", ep.pr_fpu.fpu_rsvd1);
-    if (ep.pr_fpu.fpu_rsvd2)
-	warning ("rsvd2 is 0x%x\n", ep.pr_fpu.fpu_rsvd2);
-    if (ep.pr_fpu.fpu_rsvd3)
-	warning ("rsvd3 is 0x%x\n", ep.pr_fpu.fpu_rsvd3);
-    if (ep.pr_fpu.fpu_rsvd5)
-	warning ("rsvd5 is 0x%x\n", ep.pr_fpu.fpu_rsvd5);
+      for (i = 9; i >= 0; i--)
+	printf_unfiltered ("%02x", ep.pr_fpu.fpu_stack[fpreg][i]);
+
+      i387_to_double ((char *) ep.pr_fpu.fpu_stack[fpreg], (char *) &val);
+      printf_unfiltered ("  %g\n", val);
+    }
+  if (ep.pr_fpu.fpu_rsvd1)
+    warning ("rsvd1 is 0x%x\n", ep.pr_fpu.fpu_rsvd1);
+  if (ep.pr_fpu.fpu_rsvd2)
+    warning ("rsvd2 is 0x%x\n", ep.pr_fpu.fpu_rsvd2);
+  if (ep.pr_fpu.fpu_rsvd3)
+    warning ("rsvd3 is 0x%x\n", ep.pr_fpu.fpu_rsvd3);
+  if (ep.pr_fpu.fpu_rsvd5)
+    warning ("rsvd5 is 0x%x\n", ep.pr_fpu.fpu_rsvd5);
 }
 
 
-print_1167_control_word(pcr)
-unsigned int pcr;
+print_1167_control_word (pcr)
+     unsigned int pcr;
 
 {
-    int pcr_tmp;
+  int pcr_tmp;
 
-    pcr_tmp = pcr & FPA_PCR_MODE;
-    printf_unfiltered("\tMODE= %#x; RND= %#x ", pcr_tmp, pcr_tmp & 12);
-    switch (pcr_tmp & 12) {
+  pcr_tmp = pcr & FPA_PCR_MODE;
+  printf_unfiltered ("\tMODE= %#x; RND= %#x ", pcr_tmp, pcr_tmp & 12);
+  switch (pcr_tmp & 12)
+    {
     case 0:
-	printf_unfiltered("RN (Nearest Value)");
-	break;
+      printf_unfiltered ("RN (Nearest Value)");
+      break;
     case 1:
-	printf_unfiltered("RZ (Zero)");
-	break;
+      printf_unfiltered ("RZ (Zero)");
+      break;
     case 2:
-	printf_unfiltered("RP (Positive Infinity)");
-	break;
+      printf_unfiltered ("RP (Positive Infinity)");
+      break;
     case 3:
-	printf_unfiltered("RM (Negative Infinity)");
-	break;
+      printf_unfiltered ("RM (Negative Infinity)");
+      break;
+    }
+  printf_unfiltered ("; IRND= %d ", pcr_tmp & 2);
+  if (0 == pcr_tmp & 2)
+    {
+      printf_unfiltered ("(same as RND)\n");
     }
-    printf_unfiltered("; IRND= %d ", pcr_tmp & 2);
-    if (0 == pcr_tmp & 2) {
-	printf_unfiltered("(same as RND)\n");
-    } else {
-	printf_unfiltered("(toward zero)\n");
+  else
+    {
+      printf_unfiltered ("(toward zero)\n");
     }
-    pcr_tmp = pcr & FPA_PCR_EM;
-    printf_unfiltered("\tEM= %#x", pcr_tmp);
-    if (pcr_tmp & FPA_PCR_EM_DM) printf_unfiltered(" DM");
-    if (pcr_tmp & FPA_PCR_EM_UOM) printf_unfiltered(" UOM");
-    if (pcr_tmp & FPA_PCR_EM_PM) printf_unfiltered(" PM");
-    if (pcr_tmp & FPA_PCR_EM_UM) printf_unfiltered(" UM");
-    if (pcr_tmp & FPA_PCR_EM_OM) printf_unfiltered(" OM");
-    if (pcr_tmp & FPA_PCR_EM_ZM) printf_unfiltered(" ZM");
-    if (pcr_tmp & FPA_PCR_EM_IM) printf_unfiltered(" IM");
-    printf_unfiltered("\n");
-    pcr_tmp = FPA_PCR_CC;
-    printf_unfiltered("\tCC= %#x", pcr_tmp);
-    if (pcr_tmp & FPA_PCR_20MHZ) printf_unfiltered(" 20MHZ");
-    if (pcr_tmp & FPA_PCR_CC_Z) printf_unfiltered(" Z");
-    if (pcr_tmp & FPA_PCR_CC_C2) printf_unfiltered(" C2");
-
-    /* Dynix defines FPA_PCR_CC_C0 to 0x100 and ptx defines
-       FPA_PCR_CC_C1 to 0x100.  Use whichever is defined and assume
-       the OS knows what it is doing.  */
+  pcr_tmp = pcr & FPA_PCR_EM;
+  printf_unfiltered ("\tEM= %#x", pcr_tmp);
+  if (pcr_tmp & FPA_PCR_EM_DM)
+    printf_unfiltered (" DM");
+  if (pcr_tmp & FPA_PCR_EM_UOM)
+    printf_unfiltered (" UOM");
+  if (pcr_tmp & FPA_PCR_EM_PM)
+    printf_unfiltered (" PM");
+  if (pcr_tmp & FPA_PCR_EM_UM)
+    printf_unfiltered (" UM");
+  if (pcr_tmp & FPA_PCR_EM_OM)
+    printf_unfiltered (" OM");
+  if (pcr_tmp & FPA_PCR_EM_ZM)
+    printf_unfiltered (" ZM");
+  if (pcr_tmp & FPA_PCR_EM_IM)
+    printf_unfiltered (" IM");
+  printf_unfiltered ("\n");
+  pcr_tmp = FPA_PCR_CC;
+  printf_unfiltered ("\tCC= %#x", pcr_tmp);
+  if (pcr_tmp & FPA_PCR_20MHZ)
+    printf_unfiltered (" 20MHZ");
+  if (pcr_tmp & FPA_PCR_CC_Z)
+    printf_unfiltered (" Z");
+  if (pcr_tmp & FPA_PCR_CC_C2)
+    printf_unfiltered (" C2");
+
+  /* Dynix defines FPA_PCR_CC_C0 to 0x100 and ptx defines
+     FPA_PCR_CC_C1 to 0x100.  Use whichever is defined and assume
+     the OS knows what it is doing.  */
 #ifdef FPA_PCR_CC_C1
-    if (pcr_tmp & FPA_PCR_CC_C1) printf_unfiltered(" C1");
+  if (pcr_tmp & FPA_PCR_CC_C1)
+    printf_unfiltered (" C1");
 #else
-    if (pcr_tmp & FPA_PCR_CC_C0) printf_unfiltered(" C0");
+  if (pcr_tmp & FPA_PCR_CC_C0)
+    printf_unfiltered (" C0");
 #endif
 
-    switch (pcr_tmp)
-      {
-      case FPA_PCR_CC_Z:
-	printf_unfiltered(" (Equal)");
-	break;
+  switch (pcr_tmp)
+    {
+    case FPA_PCR_CC_Z:
+      printf_unfiltered (" (Equal)");
+      break;
 #ifdef FPA_PCR_CC_C1
-      case FPA_PCR_CC_C1:
+    case FPA_PCR_CC_C1:
 #else
-      case FPA_PCR_CC_C0:
+    case FPA_PCR_CC_C0:
 #endif
-	printf_unfiltered(" (Less than)");
-	break;
-      case 0:
-	printf_unfiltered(" (Greater than)");
-	break;
-      case FPA_PCR_CC_Z | 
+      printf_unfiltered (" (Less than)");
+      break;
+    case 0:
+      printf_unfiltered (" (Greater than)");
+      break;
+      case FPA_PCR_CC_Z |
 #ifdef FPA_PCR_CC_C1
 	FPA_PCR_CC_C1
 #else
 	FPA_PCR_CC_C0
 #endif
-	  | FPA_PCR_CC_C2:
-	printf_unfiltered(" (Unordered)");
-	break;
-      default:
-	printf_unfiltered(" (Undefined)");
-	break;
-      }
-    printf_unfiltered("\n");
-    pcr_tmp = pcr & FPA_PCR_AE;
-    printf_unfiltered("\tAE= %#x", pcr_tmp);
-    if (pcr_tmp & FPA_PCR_AE_DE) printf_unfiltered(" DE");
-    if (pcr_tmp & FPA_PCR_AE_UOE) printf_unfiltered(" UOE");
-    if (pcr_tmp & FPA_PCR_AE_PE) printf_unfiltered(" PE");
-    if (pcr_tmp & FPA_PCR_AE_UE) printf_unfiltered(" UE");
-    if (pcr_tmp & FPA_PCR_AE_OE) printf_unfiltered(" OE");
-    if (pcr_tmp & FPA_PCR_AE_ZE) printf_unfiltered(" ZE");
-    if (pcr_tmp & FPA_PCR_AE_EE) printf_unfiltered(" EE");
-    if (pcr_tmp & FPA_PCR_AE_IE) printf_unfiltered(" IE");
-    printf_unfiltered("\n");
+    | FPA_PCR_CC_C2:
+      printf_unfiltered (" (Unordered)");
+      break;
+    default:
+      printf_unfiltered (" (Undefined)");
+      break;
+    }
+  printf_unfiltered ("\n");
+  pcr_tmp = pcr & FPA_PCR_AE;
+  printf_unfiltered ("\tAE= %#x", pcr_tmp);
+  if (pcr_tmp & FPA_PCR_AE_DE)
+    printf_unfiltered (" DE");
+  if (pcr_tmp & FPA_PCR_AE_UOE)
+    printf_unfiltered (" UOE");
+  if (pcr_tmp & FPA_PCR_AE_PE)
+    printf_unfiltered (" PE");
+  if (pcr_tmp & FPA_PCR_AE_UE)
+    printf_unfiltered (" UE");
+  if (pcr_tmp & FPA_PCR_AE_OE)
+    printf_unfiltered (" OE");
+  if (pcr_tmp & FPA_PCR_AE_ZE)
+    printf_unfiltered (" ZE");
+  if (pcr_tmp & FPA_PCR_AE_EE)
+    printf_unfiltered (" EE");
+  if (pcr_tmp & FPA_PCR_AE_IE)
+    printf_unfiltered (" IE");
+  printf_unfiltered ("\n");
 }
 
-print_1167_regs(regs)
-long regs[FPA_NREGS];
+print_1167_regs (regs)
+     long regs[FPA_NREGS];
 
 {
-    int i;
-
-    union {
-	double	d;
-	long	l[2];
-    } xd;
-    union {
-	float	f;
-	long	l;
-    } xf;
-
-
-    for (i = 0; i < FPA_NREGS; i++) {
-	xf.l = regs[i];
-	printf_unfiltered("%%fp%d: raw= %#x, single= %f", i+1, regs[i], xf.f);
-	if (!(i & 1)) {
-	    printf_unfiltered("\n");
-	} else {
-	    xd.l[1] = regs[i];
-	    xd.l[0] = regs[i+1];
-	    printf_unfiltered(", double= %f\n", xd.d);
+  int i;
+
+  union
+    {
+      double d;
+      long l[2];
+    }
+  xd;
+  union
+    {
+      float f;
+      long l;
+    }
+  xf;
+
+
+  for (i = 0; i < FPA_NREGS; i++)
+    {
+      xf.l = regs[i];
+      printf_unfiltered ("%%fp%d: raw= %#x, single= %f", i + 1, regs[i], xf.f);
+      if (!(i & 1))
+	{
+	  printf_unfiltered ("\n");
+	}
+      else
+	{
+	  xd.l[1] = regs[i];
+	  xd.l[0] = regs[i + 1];
+	  printf_unfiltered (", double= %f\n", xd.d);
 	}
     }
 }
 
-print_fpa_status(ep)
-struct pt_regset ep;
+print_fpa_status (ep)
+     struct pt_regset ep;
 
 {
 
-    printf_unfiltered("WTL 1167:");
-    if (ep.pr_fpa.fpa_pcr !=0) {
-	printf_unfiltered("\n");
-	print_1167_control_word(ep.pr_fpa.fpa_pcr);
-	print_1167_regs(ep.pr_fpa.fpa_regs);
-    } else {
-	printf_unfiltered(" not in use.\n");
+  printf_unfiltered ("WTL 1167:");
+  if (ep.pr_fpa.fpa_pcr != 0)
+    {
+      printf_unfiltered ("\n");
+      print_1167_control_word (ep.pr_fpa.fpa_pcr);
+      print_1167_regs (ep.pr_fpa.fpa_regs);
+    }
+  else
+    {
+      printf_unfiltered (" not in use.\n");
     }
 }
 
-#if 0 /* disabled because it doesn't go through the target vector.  */
+#if 0				/* disabled because it doesn't go through the target vector.  */
 i386_float_info ()
 {
-  char ubuf[UPAGES*NBPG];
+  char ubuf[UPAGES * NBPG];
   struct pt_regset regset;
 
-  if (have_inferior_p())
+  if (have_inferior_p ())
     {
-      PTRACE_READ_REGS (inferior_pid, (PTRACE_ARG3_TYPE) &regset);
+      PTRACE_READ_REGS (inferior_pid, (PTRACE_ARG3_TYPE) & regset);
     }
   else
     {
@@ -342,7 +390,7 @@ i386_float_info ()
 	{
 	  perror ("seek on core file");
 	}
-      if (myread (corechan, ubuf, UPAGES*NBPG) < 0)
+      if (myread (corechan, ubuf, UPAGES * NBPG) < 0)
 	{
 	  perror ("read on core file");
 	}
@@ -350,20 +398,20 @@ i386_float_info ()
       regset.pr_fpu = ((struct user *) ubuf)->u_fpusave;
       regset.pr_fpa = ((struct user *) ubuf)->u_fpasave;
     }
-  print_fpu_status(regset);
-  print_fpa_status(regset);
+  print_fpu_status (regset);
+  print_fpa_status (regset);
 }
 #endif
 
 static volatile int got_sigchld;
 
-/*ARGSUSED*/
+/*ARGSUSED */
 /* This will eventually be more interesting. */
 void
-sigchld_handler(signo)
-	int signo;
+sigchld_handler (signo)
+     int signo;
 {
-	got_sigchld++;
+  got_sigchld++;
 }
 
 /*
@@ -384,7 +432,7 @@ sigchld_handler(signo)
  * Thanks to XPT_MPDEBUGGER, we have to mange child_wait().
  */
 int
-child_wait(pid, status)
+child_wait (pid, status)
      int pid;
      struct target_waitstatus *status;
 {
@@ -399,133 +447,145 @@ child_wait(pid, status)
   prstatus_t pstatus;
 #endif
 
-  do {
-    set_sigint_trap();	/* Causes SIGINT to be passed on to the
-			   attached process. */
-    save_errno = errno;
+  do
+    {
+      set_sigint_trap ();	/* Causes SIGINT to be passed on to the
+				   attached process. */
+      save_errno = errno;
 
-    got_sigchld = 0;
+      got_sigchld = 0;
 
-    sigemptyset(&set);
+      sigemptyset (&set);
 
-    while (got_sigchld == 0) {
-	    sigsuspend(&set);
-    }
-    
-    clear_sigint_trap();
+      while (got_sigchld == 0)
+	{
+	  sigsuspend (&set);
+	}
 
-    rv = mptrace(XPT_STOPSTAT, 0, (char *)&pt, 0);
-    if (-1 == rv) {
-	    printf("XPT_STOPSTAT: errno %d\n", errno); /* DEBUG */
-	    continue;
-    }
+      clear_sigint_trap ();
+
+      rv = mptrace (XPT_STOPSTAT, 0, (char *) &pt, 0);
+      if (-1 == rv)
+	{
+	  printf ("XPT_STOPSTAT: errno %d\n", errno);	/* DEBUG */
+	  continue;
+	}
 
-    pid = pt.ps_pid;
-
-    if (pid != inferior_pid) {
-	    /* NOTE: the mystery fork in csh/tcsh needs to be ignored.
-	     * We should not return new children for the initial run
-	     * of a process until it has done the exec.
-	     */
-	    /* inferior probably forked; send it on its way */
-	    rv = mptrace(XPT_UNDEBUG, pid, 0, 0);
-	    if (-1 == rv) {
-		    printf("child_wait: XPT_UNDEBUG: pid %d: %s\n", pid,
-			   safe_strerror(errno));
+      pid = pt.ps_pid;
+
+      if (pid != inferior_pid)
+	{
+	  /* NOTE: the mystery fork in csh/tcsh needs to be ignored.
+	   * We should not return new children for the initial run
+	   * of a process until it has done the exec.
+	   */
+	  /* inferior probably forked; send it on its way */
+	  rv = mptrace (XPT_UNDEBUG, pid, 0, 0);
+	  if (-1 == rv)
+	    {
+	      printf ("child_wait: XPT_UNDEBUG: pid %d: %s\n", pid,
+		      safe_strerror (errno));
 	    }
-	    continue;
-    }
-    /* FIXME: Do we deal with fork notification correctly?  */
-    switch (pt.ps_reason) {
-    case PTS_FORK:
-	/* multi proc: treat like PTS_EXEC */
-	    /*
-	     * Pretend this didn't happen, since gdb isn't set up
-	     * to deal with stops on fork.
-	     */
-	    rv = ptrace(PT_CONTSIG, pid, 1, 0);
-	    if (-1 == rv) {
-		    printf("PTS_FORK: PT_CONTSIG: error %d\n", errno);
+	  continue;
+	}
+      /* FIXME: Do we deal with fork notification correctly?  */
+      switch (pt.ps_reason)
+	{
+	case PTS_FORK:
+	  /* multi proc: treat like PTS_EXEC */
+	  /*
+	   * Pretend this didn't happen, since gdb isn't set up
+	   * to deal with stops on fork.
+	   */
+	  rv = ptrace (PT_CONTSIG, pid, 1, 0);
+	  if (-1 == rv)
+	    {
+	      printf ("PTS_FORK: PT_CONTSIG: error %d\n", errno);
 	    }
-	    continue;
-    case PTS_EXEC:
-	    /*
-	     * Pretend this is a SIGTRAP.
-	     */
-	    status->kind = TARGET_WAITKIND_STOPPED;
-	    status->value.sig = TARGET_SIGNAL_TRAP;
-	    break;
-    case PTS_EXIT:
-	    /*
-	     * Note: we stop before the exit actually occurs.  Extract
-	     * the exit code from the uarea.  If we're stopped in the
-	     * exit() system call, the exit code will be in
-	     * u.u_ap[0].  An exit due to an uncaught signal will have
-	     * something else in here, see the comment in the default:
-	     * case, below.  Finally,let the process exit.
-	     */
-	    if (death_by_signal)
-	      {
-		status->kind = TARGET_WAITKIND_SIGNALED;
-		status->value.sig = target_signal_from_host (death_by_signal);
-		death_by_signal = 0;
-		break;
-	      }
-	    xvaloff = (unsigned long)&u.u_ap[0] - (unsigned long)&u;
-	    errno = 0;
-	    rv = ptrace(PT_RUSER, pid, (char *)xvaloff, 0);
-	    status->kind = TARGET_WAITKIND_EXITED;
-	    status->value.integer = rv;
-	    /*
-	     * addr & data to mptrace() don't matter here, since
-	     * the process is already dead.
-	     */
-	    rv = mptrace(XPT_UNDEBUG, pid, 0, 0);
-	    if (-1 == rv) {
-		    printf("child_wait: PTS_EXIT: XPT_UNDEBUG: pid %d error %d\n", pid,
-			   errno);
+	  continue;
+	case PTS_EXEC:
+	  /*
+	   * Pretend this is a SIGTRAP.
+	   */
+	  status->kind = TARGET_WAITKIND_STOPPED;
+	  status->value.sig = TARGET_SIGNAL_TRAP;
+	  break;
+	case PTS_EXIT:
+	  /*
+	   * Note: we stop before the exit actually occurs.  Extract
+	   * the exit code from the uarea.  If we're stopped in the
+	   * exit() system call, the exit code will be in
+	   * u.u_ap[0].  An exit due to an uncaught signal will have
+	   * something else in here, see the comment in the default:
+	   * case, below.  Finally,let the process exit.
+	   */
+	  if (death_by_signal)
+	    {
+	      status->kind = TARGET_WAITKIND_SIGNALED;
+	      status->value.sig = target_signal_from_host (death_by_signal);
+	      death_by_signal = 0;
+	      break;
 	    }
-	    break;
-    case PTS_WATCHPT_HIT:
-	    fatal("PTS_WATCHPT_HIT\n");
-	    break;
-    default:
-	    /* stopped by signal */
-	    status->kind = TARGET_WAITKIND_STOPPED;
-	    status->value.sig = target_signal_from_host (pt.ps_reason);
-	    death_by_signal = 0;
-
-	    if (0 == (SIGNALS_DFL_SAFE & sigmask(pt.ps_reason))) {
-		    break;
+	  xvaloff = (unsigned long) &u.u_ap[0] - (unsigned long) &u;
+	  errno = 0;
+	  rv = ptrace (PT_RUSER, pid, (char *) xvaloff, 0);
+	  status->kind = TARGET_WAITKIND_EXITED;
+	  status->value.integer = rv;
+	  /*
+	   * addr & data to mptrace() don't matter here, since
+	   * the process is already dead.
+	   */
+	  rv = mptrace (XPT_UNDEBUG, pid, 0, 0);
+	  if (-1 == rv)
+	    {
+	      printf ("child_wait: PTS_EXIT: XPT_UNDEBUG: pid %d error %d\n", pid,
+		      errno);
+	    }
+	  break;
+	case PTS_WATCHPT_HIT:
+	  fatal ("PTS_WATCHPT_HIT\n");
+	  break;
+	default:
+	  /* stopped by signal */
+	  status->kind = TARGET_WAITKIND_STOPPED;
+	  status->value.sig = target_signal_from_host (pt.ps_reason);
+	  death_by_signal = 0;
+
+	  if (0 == (SIGNALS_DFL_SAFE & sigmask (pt.ps_reason)))
+	    {
+	      break;
 	    }
-	    /* else default action of signal is to die */
+	  /* else default action of signal is to die */
 #ifdef SVR4_SHARED_LIBS
-	    rv = ptrace(PT_GET_PRSTATUS, pid, (char *)&pstatus, 0);
-	    if (-1 == rv)
-		error("child_wait: signal %d PT_GET_PRSTATUS: %s\n",
-			pt.ps_reason, safe_strerror(errno));
-	    if (pstatus.pr_cursig != pt.ps_reason) {
-		printf("pstatus signal %d, pt signal %d\n",
-			pstatus.pr_cursig, pt.ps_reason);
+	  rv = ptrace (PT_GET_PRSTATUS, pid, (char *) &pstatus, 0);
+	  if (-1 == rv)
+	    error ("child_wait: signal %d PT_GET_PRSTATUS: %s\n",
+		   pt.ps_reason, safe_strerror (errno));
+	  if (pstatus.pr_cursig != pt.ps_reason)
+	    {
+	      printf ("pstatus signal %d, pt signal %d\n",
+		      pstatus.pr_cursig, pt.ps_reason);
 	    }
-	    sa_hand = (int)pstatus.pr_action.sa_handler;
+	  sa_hand = (int) pstatus.pr_action.sa_handler;
 #else
-	    saoff = (unsigned long)&u.u_sa[0] - (unsigned long)&u;
-	    saoff += sizeof(struct sigaction) * (pt.ps_reason - 1);
-	    errno = 0;
-	    sa_hand = ptrace(PT_RUSER, pid, (char *)saoff, 0);
-	    if (errno)
-		    error("child_wait: signal %d: RUSER: %s\n",
-			   pt.ps_reason, safe_strerror(errno));
+	  saoff = (unsigned long) &u.u_sa[0] - (unsigned long) &u;
+	  saoff += sizeof (struct sigaction) * (pt.ps_reason - 1);
+	  errno = 0;
+	  sa_hand = ptrace (PT_RUSER, pid, (char *) saoff, 0);
+	  if (errno)
+	    error ("child_wait: signal %d: RUSER: %s\n",
+		   pt.ps_reason, safe_strerror (errno));
 #endif
-	    if ((int)SIG_DFL == sa_hand) {
-		    /* we will be dying */
-		    death_by_signal = pt.ps_reason;
+	  if ((int) SIG_DFL == sa_hand)
+	    {
+	      /* we will be dying */
+	      death_by_signal = pt.ps_reason;
 	    }
-	    break;
-    }
+	  break;
+	}
 
-  } while (pid != inferior_pid); /* Some other child died or stopped */
+    }
+  while (pid != inferior_pid);	/* Some other child died or stopped */
 
   return pid;
 }
@@ -542,28 +602,30 @@ child_wait (pid, ourstatus)
   int save_errno;
   int status;
 
-  do {
-    pid = wait (&status);
-    save_errno = errno;
+  do
+    {
+      pid = wait (&status);
+      save_errno = errno;
 
-    if (pid == -1)
-      {
-	if (save_errno == EINTR)
-	  continue;
-	fprintf (stderr, "Child process unexpectedly missing: %s.\n",
-		 safe_strerror (save_errno));
-	ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
-	ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
-        return -1;
-      }
-  } while (pid != inferior_pid); /* Some other child died or stopped */
+      if (pid == -1)
+	{
+	  if (save_errno == EINTR)
+	    continue;
+	  fprintf (stderr, "Child process unexpectedly missing: %s.\n",
+		   safe_strerror (save_errno));
+	  ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
+	  ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
+	  return -1;
+	}
+    }
+  while (pid != inferior_pid);	/* Some other child died or stopped */
   store_waitstatus (ourstatus, status);
   return pid;
 }
 #endif /* ATTACH_DETACH */
+
 
 
-
 /* This function simply calls ptrace with the given arguments.  
    It exists so that all calls to ptrace are isolated in this 
    machine-dependent file. */
@@ -577,12 +639,12 @@ call_ptrace (request, pid, addr, data)
 }
 
 int
-call_mptrace(request, pid, addr, data)
-	int request, pid;
-	PTRACE_ARG3_TYPE addr;
-	int data;
+call_mptrace (request, pid, addr, data)
+     int request, pid;
+     PTRACE_ARG3_TYPE addr;
+     int data;
 {
-	return mptrace(request, pid, addr, data);
+  return mptrace (request, pid, addr, data);
 }
 
 #if defined (DEBUG_PTRACE)
@@ -604,10 +666,10 @@ kill_inferior ()
 
   kill (inferior_pid, SIGKILL);
 #ifdef ATTACH_DETACH
-  detach(SIGKILL);
+  detach (SIGKILL);
 #else /* ATTACH_DETACH */
-  ptrace(PT_KILL, inferior_pid, 0, 0);
-  wait((int *)NULL);
+  ptrace (PT_KILL, inferior_pid, 0, 0);
+  wait ((int *) NULL);
 #endif /* ATTACH_DETACH */
   target_mourn_inferior ();
 }
@@ -637,7 +699,7 @@ child_resume (pid, step, signal)
      instructions), so we don't have to worry about that here.  */
 
   if (step)
-    ptrace (PT_SSTEP,     pid, (PTRACE_ARG3_TYPE) 1, signal);
+    ptrace (PT_SSTEP, pid, (PTRACE_ARG3_TYPE) 1, signal);
   else
     ptrace (PT_CONTSIG, pid, (PTRACE_ARG3_TYPE) 1, signal);
 
@@ -651,32 +713,35 @@ int
 attach (pid)
      int pid;
 {
-	sigset_t set;
-	int rv;
+  sigset_t set;
+  int rv;
 
-	rv = mptrace(XPT_DEBUG, pid, 0, 0);
-	if (-1 == rv) {
-		error("mptrace(XPT_DEBUG): %s", safe_strerror(errno));
-	}
-	rv = mptrace(XPT_SIGNAL, pid, 0, SIGSTOP);
-	if (-1 == rv) {
-		error("mptrace(XPT_SIGNAL): %s", safe_strerror(errno));
-	}
-	attach_flag = 1;
-	return pid;
+  rv = mptrace (XPT_DEBUG, pid, 0, 0);
+  if (-1 == rv)
+    {
+      error ("mptrace(XPT_DEBUG): %s", safe_strerror (errno));
+    }
+  rv = mptrace (XPT_SIGNAL, pid, 0, SIGSTOP);
+  if (-1 == rv)
+    {
+      error ("mptrace(XPT_SIGNAL): %s", safe_strerror (errno));
+    }
+  attach_flag = 1;
+  return pid;
 }
 
 void
 detach (signo)
      int signo;
 {
-	int rv;
+  int rv;
 
-	rv = mptrace(XPT_UNDEBUG, inferior_pid, 1, signo);
-	if (-1 == rv) {
-		error("mptrace(XPT_UNDEBUG): %s", safe_strerror(errno));
-	}
-	attach_flag = 0;
+  rv = mptrace (XPT_UNDEBUG, inferior_pid, 1, signo);
+  if (-1 == rv)
+    {
+      error ("mptrace(XPT_UNDEBUG): %s", safe_strerror (errno));
+    }
+  attach_flag = 0;
 }
 
 #endif /* ATTACH_DETACH */
@@ -685,8 +750,8 @@ detach (signo)
 #ifndef PTRACE_XFER_TYPE
 #define PTRACE_XFER_TYPE int
 #endif
-
 
+
 /* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
    in the NEW_SUN_PTRACE case.
    It ought to be straightforward.  But it appears that writing did
@@ -696,7 +761,7 @@ detach (signo)
 /* Copy LEN bytes to or from inferior's memory starting at MEMADDR
    to debugger memory starting at MYADDR.   Copy to inferior if
    WRITE is nonzero.
-  
+
    Returns the length copied, which is either the LEN argument or zero.
    This xfer function does not do partial moves, since child_ops
    doesn't allow memory operations to cross below us in the target stack
@@ -708,28 +773,29 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
      char *myaddr;
      int len;
      int write;
-     struct target_ops *target;		/* ignored */
+     struct target_ops *target;	/* ignored */
 {
   register int i;
   /* Round starting address down to longword boundary.  */
-  register CORE_ADDR addr = memaddr & - sizeof (PTRACE_XFER_TYPE);
+  register CORE_ADDR addr = memaddr & -sizeof (PTRACE_XFER_TYPE);
   /* Round ending address up; get number of longwords that makes.  */
   register int count
-    = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1)
-      / sizeof (PTRACE_XFER_TYPE);
+  = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1)
+  / sizeof (PTRACE_XFER_TYPE);
   /* Allocate buffer of that many longwords.  */
   register PTRACE_XFER_TYPE *buffer
-    = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE));
+  = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE));
 
   if (write)
     {
       /* Fill start and end extra bytes of buffer with existing memory data.  */
 
-      if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE)) {
-	/* Need part of initial word -- fetch it.  */
-        buffer[0] = ptrace (PT_RTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr,
-			    0);
-      }
+      if (addr != memaddr || len < (int) sizeof (PTRACE_XFER_TYPE))
+	{
+	  /* Need part of initial word -- fetch it.  */
+	  buffer[0] = ptrace (PT_RTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr,
+			      0);
+	}
 
       if (count > 1)		/* FIXME, avoid if even boundary */
 	{
@@ -756,7 +822,7 @@ child_xfer_memory (memaddr, myaddr, len, write, target)
 	  if (errno)
 	    {
 	      /* Using the appropriate one (I or D) is necessary for
-		 Gould NP1, at least.  */
+	         Gould NP1, at least.  */
 	      errno = 0;
 	      ptrace (PT_WTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr,
 		      buffer[i]);
@@ -800,45 +866,49 @@ _initialize_symm_nat ()
  * Note that attach is not implemented in dynix 3, and not in ptx
  * until version 2.1 of the OS.
  */
-	int rv;
-	sigset_t set;
-	struct sigaction sact;
-
-	rv = mptrace(XPT_MPDEBUGGER, 0, 0, 0);
-	if (-1 == rv) {
-		fatal("_initialize_symm_nat(): mptrace(XPT_MPDEBUGGER): %s",
-		      safe_strerror(errno));
-	}
+  int rv;
+  sigset_t set;
+  struct sigaction sact;
 
-	/*
-	 * Under MPDEBUGGER, we get SIGCLHD when a traced process does
-	 * anything of interest.
-	 */
-
-	/*
-	 * Block SIGCHLD.  We leave it blocked all the time, and then
-	 * call sigsuspend() in child_wait() to wait for the child
-	 * to do something.  None of these ought to fail, but check anyway.
-	 */
-	sigemptyset(&set);
-	rv = sigaddset(&set, SIGCHLD);
-	if (-1 == rv) {
-		fatal("_initialize_symm_nat(): sigaddset(SIGCHLD): %s",
-		      safe_strerror(errno));
-	}
-	rv = sigprocmask(SIG_BLOCK, &set, (sigset_t *)NULL);
-	if (-1 == rv) {
-		fatal("_initialize_symm_nat(): sigprocmask(SIG_BLOCK): %s",
-		      safe_strerror(errno));
-	}
+  rv = mptrace (XPT_MPDEBUGGER, 0, 0, 0);
+  if (-1 == rv)
+    {
+      fatal ("_initialize_symm_nat(): mptrace(XPT_MPDEBUGGER): %s",
+	     safe_strerror (errno));
+    }
 
-	sact.sa_handler = sigchld_handler;
-	sigemptyset(&sact.sa_mask);
-	sact.sa_flags = SA_NOCLDWAIT; /* keep the zombies away */
-	rv = sigaction(SIGCHLD, &sact, (struct sigaction *)NULL);
-	if (-1 == rv) {
-		fatal("_initialize_symm_nat(): sigaction(SIGCHLD): %s",
-		      safe_strerror(errno));
-	}
+  /*
+   * Under MPDEBUGGER, we get SIGCLHD when a traced process does
+   * anything of interest.
+   */
+
+  /*
+   * Block SIGCHLD.  We leave it blocked all the time, and then
+   * call sigsuspend() in child_wait() to wait for the child
+   * to do something.  None of these ought to fail, but check anyway.
+   */
+  sigemptyset (&set);
+  rv = sigaddset (&set, SIGCHLD);
+  if (-1 == rv)
+    {
+      fatal ("_initialize_symm_nat(): sigaddset(SIGCHLD): %s",
+	     safe_strerror (errno));
+    }
+  rv = sigprocmask (SIG_BLOCK, &set, (sigset_t *) NULL);
+  if (-1 == rv)
+    {
+      fatal ("_initialize_symm_nat(): sigprocmask(SIG_BLOCK): %s",
+	     safe_strerror (errno));
+    }
+
+  sact.sa_handler = sigchld_handler;
+  sigemptyset (&sact.sa_mask);
+  sact.sa_flags = SA_NOCLDWAIT;	/* keep the zombies away */
+  rv = sigaction (SIGCHLD, &sact, (struct sigaction *) NULL);
+  if (-1 == rv)
+    {
+      fatal ("_initialize_symm_nat(): sigaction(SIGCHLD): %s",
+	     safe_strerror (errno));
+    }
 #endif
 }