import gdb-1999-12-21 snapshot

1 files changed, 575 insertions, 575 deletions

diff --git a/gdb/arm-xdep.c b/gdb/arm-xdep.c
index 3c253c5..64ca900 100644
--- a/gdb/arm-xdep.c
+++ b/gdb/arm-xdep.c
@@ -1,575 +1,575 @@
-/* Acorn Risc Machine host machine support.
-   Copyright (C) 1988, 1989, 1991 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.  */
-
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "opcode/arm.h"
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-#define N_TXTADDR(hdr) 0x8000
-#define N_DATADDR(hdr) (hdr.a_text + 0x8000)
-
-#include "gdbcore.h"
-
-#include <sys/user.h>		/* After a.out.h  */
-#include <sys/file.h>
-#include "gdb_stat.h"
-
-#include <errno.h>
-
-void
-fetch_inferior_registers (regno)
-     int regno;			/* Original value discarded */
-{
-  register unsigned int regaddr;
-  char buf[MAX_REGISTER_RAW_SIZE];
-  register int i;
-
-  struct user u;
-  unsigned int offset = (char *) &u.u_ar0 - (char *) &u;
-  offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0)
-    - KERNEL_U_ADDR;
-
-  registers_fetched ();
-
-  for (regno = 0; regno < 16; regno++)
-    {
-      regaddr = offset + regno * 4;
-      *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid,
-				 (PTRACE_ARG3_TYPE) regaddr, 0);
-      if (regno == PC_REGNUM)
-	*(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]);
-      supply_register (regno, buf);
-    }
-  *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid,
-			     (PTRACE_ARG3_TYPE) (offset + PC * 4), 0);
-  supply_register (PS_REGNUM, buf);	/* set virtual register ps same as pc */
-
-  /* read the floating point registers */
-  offset = (char *) &u.u_fp_regs - (char *) &u;
-  *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0);
-  supply_register (FPS_REGNUM, buf);
-  for (regno = 16; regno < 24; regno++)
-    {
-      regaddr = offset + 4 + 12 * (regno - 16);
-      for (i = 0; i < 12; i += sizeof (int))
-	 *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
-				      (PTRACE_ARG3_TYPE) (regaddr + i), 0);
-      supply_register (regno, buf);
-    }
-}
-
-/* Store our register values back into the inferior.
-   If REGNO is -1, do this for all registers.
-   Otherwise, REGNO specifies which register (so we can save time).  */
-
-void
-store_inferior_registers (regno)
-     int regno;
-{
-  register unsigned int regaddr;
-  char buf[80];
-
-  struct user u;
-  unsigned long value;
-  unsigned int offset = (char *) &u.u_ar0 - (char *) &u;
-  offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0)
-    - KERNEL_U_ADDR;
-
-  if (regno >= 0)
-    {
-      if (regno >= 16)
-	return;
-      regaddr = offset + 4 * regno;
-      errno = 0;
-      value = read_register (regno);
-      if (regno == PC_REGNUM)
-	value = SET_PC_PART (read_register (PS_REGNUM), value);
-      ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
-      if (errno != 0)
-	{
-	  sprintf (buf, "writing register number %d", regno);
-	  perror_with_name (buf);
-	}
-    }
-  else
-    for (regno = 0; regno < 15; regno++)
-      {
-	regaddr = offset + regno * 4;
-	errno = 0;
-	value = read_register (regno);
-	if (regno == PC_REGNUM)
-	  value = SET_PC_PART (read_register (PS_REGNUM), value);
-	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value);
-	if (errno != 0)
-	  {
-	    sprintf (buf, "writing all regs, number %d", regno);
-	    perror_with_name (buf);
-	  }
-      }
-}
-
-/* Work with core dump and executable files, for GDB. 
-   This code would be in corefile.c if it weren't machine-dependent. */
-
-/* Structure to describe the chain of shared libraries used
-   by the execfile.
-   e.g. prog shares Xt which shares X11 which shares c. */
-
-struct shared_library
-{
-  struct exec_header header;
-  char name[SHLIBLEN];
-  CORE_ADDR text_start;		/* CORE_ADDR of 1st byte of text, this file */
-  long data_offset;		/* offset of data section in file */
-  int chan;			/* file descriptor for the file */
-  struct shared_library *shares;	/* library this one shares */
-};
-static struct shared_library *shlib = 0;
-
-/* Hook for `exec_file_command' command to call.  */
-
-extern void (*exec_file_display_hook) ();
-
-static CORE_ADDR unshared_text_start;
-
-/* extended header from exec file (for shared library info) */
-
-static struct exec_header exec_header;
-
-void
-core_file_command (filename, from_tty)
-     char *filename;
-     int from_tty;
-{
-  int val;
-
-  /* Discard all vestiges of any previous core file
-     and mark data and stack spaces as empty.  */
-
-  if (corefile)
-    free (corefile);
-  corefile = 0;
-
-  if (corechan >= 0)
-    close (corechan);
-  corechan = -1;
-
-  data_start = 0;
-  data_end = 0;
-  stack_start = STACK_END_ADDR;
-  stack_end = STACK_END_ADDR;
-
-  /* Now, if a new core file was specified, open it and digest it.  */
-
-  if (filename)
-    {
-      filename = tilde_expand (filename);
-      make_cleanup (free, filename);
-
-      if (have_inferior_p ())
-	error ("To look at a core file, you must kill the program with \"kill\".");
-      corechan = open (filename, O_RDONLY, 0);
-      if (corechan < 0)
-	perror_with_name (filename);
-      /* 4.2-style (and perhaps also sysV-style) core dump file.  */
-      {
-	struct user u;
-
-	unsigned int reg_offset, fp_reg_offset;
-
-	val = myread (corechan, &u, sizeof u);
-	if (val < 0)
-	  perror_with_name ("Not a core file: reading upage");
-	if (val != sizeof u)
-	  error ("Not a core file: could only read %d bytes", val);
-
-	/* We are depending on exec_file_command having been called
-	   previously to set exec_data_start.  Since the executable
-	   and the core file share the same text segment, the address
-	   of the data segment will be the same in both.  */
-	data_start = exec_data_start;
-
-	data_end = data_start + NBPG * u.u_dsize;
-	stack_start = stack_end - NBPG * u.u_ssize;
-	data_offset = NBPG * UPAGES;
-	stack_offset = NBPG * (UPAGES + u.u_dsize);
-
-	/* Some machines put an absolute address in here and some put
-	   the offset in the upage of the regs.  */
-	reg_offset = (int) u.u_ar0;
-	if (reg_offset > NBPG * UPAGES)
-	  reg_offset -= KERNEL_U_ADDR;
-	fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u;
-
-	/* I don't know where to find this info.
-	   So, for now, mark it as not available.  */
-	N_SET_MAGIC (core_aouthdr, 0);
-
-	/* Read the register values out of the core file and store
-	   them where `read_register' will find them.  */
-
-	{
-	  register int regno;
-
-	  for (regno = 0; regno < NUM_REGS; regno++)
-	    {
-	      char buf[MAX_REGISTER_RAW_SIZE];
-
-	      if (regno < 16)
-		val = lseek (corechan, reg_offset + 4 * regno, 0);
-	      else if (regno < 24)
-		val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0);
-	      else if (regno == 24)
-		val = lseek (corechan, fp_reg_offset, 0);
-	      else if (regno == 25)
-		val = lseek (corechan, reg_offset + 4 * PC, 0);
-	      if (val < 0
-		  || (val = myread (corechan, buf, sizeof buf)) < 0)
-		{
-		  char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno))
-						  + 30);
-		  strcpy (buffer, "Reading register ");
-		  strcat (buffer, REGISTER_NAME (regno));
-
-		  perror_with_name (buffer);
-		}
-
-	      if (regno == PC_REGNUM)
-		*(int *) buf = GET_PC_PART (*(int *) buf);
-	      supply_register (regno, buf);
-	    }
-	}
-      }
-      if (filename[0] == '/')
-	corefile = savestring (filename, strlen (filename));
-      else
-	{
-	  corefile = concat (current_directory, "/", filename, NULL);
-	}
-
-      flush_cached_frames ();
-      select_frame (get_current_frame (), 0);
-      validate_files ();
-    }
-  else if (from_tty)
-    printf ("No core file now.\n");
-}
-
-#if 0
-/* Work with core dump and executable files, for GDB. 
-   This code would be in corefile.c if it weren't machine-dependent. */
-
-/* Structure to describe the chain of shared libraries used
-   by the execfile.
-   e.g. prog shares Xt which shares X11 which shares c. */
-
-struct shared_library
-{
-  struct exec_header header;
-  char name[SHLIBLEN];
-  CORE_ADDR text_start;		/* CORE_ADDR of 1st byte of text, this file */
-  long data_offset;		/* offset of data section in file */
-  int chan;			/* file descriptor for the file */
-  struct shared_library *shares;	/* library this one shares */
-};
-static struct shared_library *shlib = 0;
-
-/* Hook for `exec_file_command' command to call.  */
-
-extern void (*exec_file_display_hook) ();
-
-static CORE_ADDR unshared_text_start;
-
-/* extended header from exec file (for shared library info) */
-
-static struct exec_header exec_header;
-
-void
-exec_file_command (filename, from_tty)
-     char *filename;
-     int from_tty;
-{
-  int val;
-
-  /* Eliminate all traces of old exec file.
-     Mark text segment as empty.  */
-
-  if (execfile)
-    free (execfile);
-  execfile = 0;
-  data_start = 0;
-  data_end -= exec_data_start;
-  text_start = 0;
-  unshared_text_start = 0;
-  text_end = 0;
-  exec_data_start = 0;
-  exec_data_end = 0;
-  if (execchan >= 0)
-    close (execchan);
-  execchan = -1;
-  if (shlib)
-    {
-      close_shared_library (shlib);
-      shlib = 0;
-    }
-
-  /* Now open and digest the file the user requested, if any.  */
-
-  if (filename)
-    {
-      filename = tilde_expand (filename);
-      make_cleanup (free, filename);
-
-      execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0,
-			&execfile);
-      if (execchan < 0)
-	perror_with_name (filename);
-
-      {
-	struct stat st_exec;
-
-#ifdef HEADER_SEEK_FD
-	HEADER_SEEK_FD (execchan);
-#endif
-
-	val = myread (execchan, &exec_header, sizeof exec_header);
-	exec_aouthdr = exec_header.a_exec;
-
-	if (val < 0)
-	  perror_with_name (filename);
-
-	text_start = 0x8000;
-
-	/* Look for shared library if needed */
-	if (exec_header.a_exec.a_magic & MF_USES_SL)
-	  shlib = open_shared_library (exec_header.a_shlibname, text_start);
-
-	text_offset = N_TXTOFF (exec_aouthdr);
-	exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text;
-
-	if (shlib)
-	  {
-	    unshared_text_start = shared_text_end (shlib) & ~0x7fff;
-	    stack_start = shlib->header.a_exec.a_sldatabase;
-	    stack_end = STACK_END_ADDR;
-	  }
-	else
-	  unshared_text_start = 0x8000;
-	text_end = unshared_text_start + exec_aouthdr.a_text;
-
-	exec_data_start = unshared_text_start + exec_aouthdr.a_text;
-	exec_data_end = exec_data_start + exec_aouthdr.a_data;
-
-	data_start = exec_data_start;
-	data_end += exec_data_start;
-
-	fstat (execchan, &st_exec);
-	exec_mtime = st_exec.st_mtime;
-      }
-
-      validate_files ();
-    }
-  else if (from_tty)
-    printf ("No executable file now.\n");
-
-  /* Tell display code (if any) about the changed file name.  */
-  if (exec_file_display_hook)
-    (*exec_file_display_hook) (filename);
-}
-#endif
-
-#if 0
-/* Read from the program's memory (except for inferior processes).
-   This function is misnamed, since it only reads, never writes; and
-   since it will use the core file and/or executable file as necessary.
-
-   It should be extended to write as well as read, FIXME, for patching files.
-
-   Return 0 if address could be read, EIO if addresss out of bounds.  */
-
-int
-xfer_core_file (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  register int i;
-  register int val;
-  int xferchan;
-  char **xferfile;
-  int fileptr;
-  int returnval = 0;
-
-  while (len > 0)
-    {
-      xferfile = 0;
-      xferchan = 0;
-
-      /* Determine which file the next bunch of addresses reside in,
-         and where in the file.  Set the file's read/write pointer
-         to point at the proper place for the desired address
-         and set xferfile and xferchan for the correct file.
-
-         If desired address is nonexistent, leave them zero.
-
-         i is set to the number of bytes that can be handled
-         along with the next address.
-
-         We put the most likely tests first for efficiency.  */
-
-      /* Note that if there is no core file
-         data_start and data_end are equal.  */
-      if (memaddr >= data_start && memaddr < data_end)
-	{
-	  i = min (len, data_end - memaddr);
-	  fileptr = memaddr - data_start + data_offset;
-	  xferfile = &corefile;
-	  xferchan = corechan;
-	}
-      /* Note that if there is no core file
-         stack_start and stack_end define the shared library data.  */
-      else if (memaddr >= stack_start && memaddr < stack_end)
-	{
-	  if (corechan < 0)
-	    {
-	      struct shared_library *lib;
-	      for (lib = shlib; lib; lib = lib->shares)
-		if (memaddr >= lib->header.a_exec.a_sldatabase &&
-		    memaddr < lib->header.a_exec.a_sldatabase +
-		    lib->header.a_exec.a_data)
-		  break;
-	      if (lib)
-		{
-		  i = min (len, lib->header.a_exec.a_sldatabase +
-			   lib->header.a_exec.a_data - memaddr);
-		  fileptr = lib->data_offset + memaddr -
-		    lib->header.a_exec.a_sldatabase;
-		  xferfile = execfile;
-		  xferchan = lib->chan;
-		}
-	    }
-	  else
-	    {
-	      i = min (len, stack_end - memaddr);
-	      fileptr = memaddr - stack_start + stack_offset;
-	      xferfile = &corefile;
-	      xferchan = corechan;
-	    }
-	}
-      else if (corechan < 0
-	       && memaddr >= exec_data_start && memaddr < exec_data_end)
-	{
-	  i = min (len, exec_data_end - memaddr);
-	  fileptr = memaddr - exec_data_start + exec_data_offset;
-	  xferfile = &execfile;
-	  xferchan = execchan;
-	}
-      else if (memaddr >= text_start && memaddr < text_end)
-	{
-	  struct shared_library *lib;
-	  for (lib = shlib; lib; lib = lib->shares)
-	    if (memaddr >= lib->text_start &&
-		memaddr < lib->text_start + lib->header.a_exec.a_text)
-	      break;
-	  if (lib)
-	    {
-	      i = min (len, lib->header.a_exec.a_text +
-		       lib->text_start - memaddr);
-	      fileptr = memaddr - lib->text_start + text_offset;
-	      xferfile = &execfile;
-	      xferchan = lib->chan;
-	    }
-	  else
-	    {
-	      i = min (len, text_end - memaddr);
-	      fileptr = memaddr - unshared_text_start + text_offset;
-	      xferfile = &execfile;
-	      xferchan = execchan;
-	    }
-	}
-      else if (memaddr < text_start)
-	{
-	  i = min (len, text_start - memaddr);
-	}
-      else if (memaddr >= text_end
-	       && memaddr < (corechan >= 0 ? data_start : exec_data_start))
-	{
-	  i = min (len, data_start - memaddr);
-	}
-      else if (corechan >= 0
-	       && memaddr >= data_end && memaddr < stack_start)
-	{
-	  i = min (len, stack_start - memaddr);
-	}
-      else if (corechan < 0 && memaddr >= exec_data_end)
-	{
-	  i = min (len, -memaddr);
-	}
-      else if (memaddr >= stack_end && stack_end != 0)
-	{
-	  i = min (len, -memaddr);
-	}
-      else
-	{
-	  /* Address did not classify into one of the known ranges.
-	     This shouldn't happen; we catch the endpoints.  */
-	  internal_error ("Bad case logic in xfer_core_file.");
-	}
-
-      /* Now we know which file to use.
-         Set up its pointer and transfer the data.  */
-      if (xferfile)
-	{
-	  if (*xferfile == 0)
-	    if (xferfile == &execfile)
-	      error ("No program file to examine.");
-	    else
-	      error ("No core dump file or running program to examine.");
-	  val = lseek (xferchan, fileptr, 0);
-	  if (val < 0)
-	    perror_with_name (*xferfile);
-	  val = myread (xferchan, myaddr, i);
-	  if (val < 0)
-	    perror_with_name (*xferfile);
-	}
-      /* If this address is for nonexistent memory,
-         read zeros if reading, or do nothing if writing.
-         Actually, we never right.  */
-      else
-	{
-	  memset (myaddr, '\0', i);
-	  returnval = EIO;
-	}
-
-      memaddr += i;
-      myaddr += i;
-      len -= i;
-    }
-  return returnval;
-}
-#endif
+/* OBSOLETE /* Acorn Risc Machine host machine support. */
+/* OBSOLETE    Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc. */
+/* OBSOLETE  */
+/* OBSOLETE    This file is part of GDB. */
+/* OBSOLETE  */
+/* OBSOLETE    This program is free software; you can redistribute it and/or modify */
+/* OBSOLETE    it under the terms of the GNU General Public License as published by */
+/* OBSOLETE    the Free Software Foundation; either version 2 of the License, or */
+/* OBSOLETE    (at your option) any later version. */
+/* OBSOLETE  */
+/* OBSOLETE    This program is distributed in the hope that it will be useful, */
+/* OBSOLETE    but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* OBSOLETE    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the */
+/* OBSOLETE    GNU General Public License for more details. */
+/* OBSOLETE  */
+/* OBSOLETE    You should have received a copy of the GNU General Public License */
+/* OBSOLETE    along with this program; if not, write to the Free Software */
+/* OBSOLETE    Foundation, Inc., 59 Temple Place - Suite 330, */
+/* OBSOLETE    Boston, MA 02111-1307, USA.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE #include "defs.h" */
+/* OBSOLETE #include "frame.h" */
+/* OBSOLETE #include "inferior.h" */
+/* OBSOLETE #include "opcode/arm.h" */
+/* OBSOLETE  */
+/* OBSOLETE #include <sys/param.h> */
+/* OBSOLETE #include <sys/dir.h> */
+/* OBSOLETE #include <signal.h> */
+/* OBSOLETE #include <sys/ioctl.h> */
+/* OBSOLETE #include <sys/ptrace.h> */
+/* OBSOLETE #include <machine/reg.h> */
+/* OBSOLETE  */
+/* OBSOLETE #define N_TXTADDR(hdr) 0x8000 */
+/* OBSOLETE #define N_DATADDR(hdr) (hdr.a_text + 0x8000) */
+/* OBSOLETE  */
+/* OBSOLETE #include "gdbcore.h" */
+/* OBSOLETE  */
+/* OBSOLETE #include <sys/user.h>		/* After a.out.h  *x/ */
+/* OBSOLETE #include <sys/file.h> */
+/* OBSOLETE #include "gdb_stat.h" */
+/* OBSOLETE  */
+/* OBSOLETE #include <errno.h> */
+/* OBSOLETE  */
+/* OBSOLETE void */
+/* OBSOLETE fetch_inferior_registers (regno) */
+/* OBSOLETE      int regno;			/* Original value discarded *x/ */
+/* OBSOLETE { */
+/* OBSOLETE   register unsigned int regaddr; */
+/* OBSOLETE   char buf[MAX_REGISTER_RAW_SIZE]; */
+/* OBSOLETE   register int i; */
+/* OBSOLETE  */
+/* OBSOLETE   struct user u; */
+/* OBSOLETE   unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */
+/* OBSOLETE   offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */
+/* OBSOLETE     - KERNEL_U_ADDR; */
+/* OBSOLETE  */
+/* OBSOLETE   registers_fetched (); */
+/* OBSOLETE  */
+/* OBSOLETE   for (regno = 0; regno < 16; regno++) */
+/* OBSOLETE     { */
+/* OBSOLETE       regaddr = offset + regno * 4; */
+/* OBSOLETE       *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */
+/* OBSOLETE 				 (PTRACE_ARG3_TYPE) regaddr, 0); */
+/* OBSOLETE       if (regno == PC_REGNUM) */
+/* OBSOLETE 	*(int *) &buf[0] = GET_PC_PART (*(int *) &buf[0]); */
+/* OBSOLETE       supply_register (regno, buf); */
+/* OBSOLETE     } */
+/* OBSOLETE   *(int *) &buf[0] = ptrace (PT_READ_U, inferior_pid, */
+/* OBSOLETE 			     (PTRACE_ARG3_TYPE) (offset + PC * 4), 0); */
+/* OBSOLETE   supply_register (PS_REGNUM, buf);	/* set virtual register ps same as pc *x/ */
+/* OBSOLETE  */
+/* OBSOLETE   /* read the floating point registers *x/ */
+/* OBSOLETE   offset = (char *) &u.u_fp_regs - (char *) &u; */
+/* OBSOLETE   *(int *) buf = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0); */
+/* OBSOLETE   supply_register (FPS_REGNUM, buf); */
+/* OBSOLETE   for (regno = 16; regno < 24; regno++) */
+/* OBSOLETE     { */
+/* OBSOLETE       regaddr = offset + 4 + 12 * (regno - 16); */
+/* OBSOLETE       for (i = 0; i < 12; i += sizeof (int)) */
+/* OBSOLETE 	 *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid, */
+/* OBSOLETE 				      (PTRACE_ARG3_TYPE) (regaddr + i), 0); */
+/* OBSOLETE       supply_register (regno, buf); */
+/* OBSOLETE     } */
+/* OBSOLETE } */
+/* OBSOLETE  */
+/* OBSOLETE /* Store our register values back into the inferior. */
+/* OBSOLETE    If REGNO is -1, do this for all registers. */
+/* OBSOLETE    Otherwise, REGNO specifies which register (so we can save time).  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE void */
+/* OBSOLETE store_inferior_registers (regno) */
+/* OBSOLETE      int regno; */
+/* OBSOLETE { */
+/* OBSOLETE   register unsigned int regaddr; */
+/* OBSOLETE   char buf[80]; */
+/* OBSOLETE  */
+/* OBSOLETE   struct user u; */
+/* OBSOLETE   unsigned long value; */
+/* OBSOLETE   unsigned int offset = (char *) &u.u_ar0 - (char *) &u; */
+/* OBSOLETE   offset = ptrace (PT_READ_U, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) */
+/* OBSOLETE     - KERNEL_U_ADDR; */
+/* OBSOLETE  */
+/* OBSOLETE   if (regno >= 0) */
+/* OBSOLETE     { */
+/* OBSOLETE       if (regno >= 16) */
+/* OBSOLETE 	return; */
+/* OBSOLETE       regaddr = offset + 4 * regno; */
+/* OBSOLETE       errno = 0; */
+/* OBSOLETE       value = read_register (regno); */
+/* OBSOLETE       if (regno == PC_REGNUM) */
+/* OBSOLETE 	value = SET_PC_PART (read_register (PS_REGNUM), value); */
+/* OBSOLETE       ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */
+/* OBSOLETE       if (errno != 0) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  sprintf (buf, "writing register number %d", regno); */
+/* OBSOLETE 	  perror_with_name (buf); */
+/* OBSOLETE 	} */
+/* OBSOLETE     } */
+/* OBSOLETE   else */
+/* OBSOLETE     for (regno = 0; regno < 15; regno++) */
+/* OBSOLETE       { */
+/* OBSOLETE 	regaddr = offset + regno * 4; */
+/* OBSOLETE 	errno = 0; */
+/* OBSOLETE 	value = read_register (regno); */
+/* OBSOLETE 	if (regno == PC_REGNUM) */
+/* OBSOLETE 	  value = SET_PC_PART (read_register (PS_REGNUM), value); */
+/* OBSOLETE 	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, value); */
+/* OBSOLETE 	if (errno != 0) */
+/* OBSOLETE 	  { */
+/* OBSOLETE 	    sprintf (buf, "writing all regs, number %d", regno); */
+/* OBSOLETE 	    perror_with_name (buf); */
+/* OBSOLETE 	  } */
+/* OBSOLETE       } */
+/* OBSOLETE } */
+/* OBSOLETE  */
+/* OBSOLETE /* Work with core dump and executable files, for GDB.  */
+/* OBSOLETE    This code would be in corefile.c if it weren't machine-dependent. *x/ */
+/* OBSOLETE  */
+/* OBSOLETE /* Structure to describe the chain of shared libraries used */
+/* OBSOLETE    by the execfile. */
+/* OBSOLETE    e.g. prog shares Xt which shares X11 which shares c. *x/ */
+/* OBSOLETE  */
+/* OBSOLETE struct shared_library */
+/* OBSOLETE { */
+/* OBSOLETE   struct exec_header header; */
+/* OBSOLETE   char name[SHLIBLEN]; */
+/* OBSOLETE   CORE_ADDR text_start;		/* CORE_ADDR of 1st byte of text, this file *x/ */
+/* OBSOLETE   long data_offset;		/* offset of data section in file *x/ */
+/* OBSOLETE   int chan;			/* file descriptor for the file *x/ */
+/* OBSOLETE   struct shared_library *shares;	/* library this one shares *x/ */
+/* OBSOLETE }; */
+/* OBSOLETE static struct shared_library *shlib = 0; */
+/* OBSOLETE  */
+/* OBSOLETE /* Hook for `exec_file_command' command to call.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE extern void (*exec_file_display_hook) (); */
+/* OBSOLETE  */
+/* OBSOLETE static CORE_ADDR unshared_text_start; */
+/* OBSOLETE  */
+/* OBSOLETE /* extended header from exec file (for shared library info) *x/ */
+/* OBSOLETE  */
+/* OBSOLETE static struct exec_header exec_header; */
+/* OBSOLETE  */
+/* OBSOLETE void */
+/* OBSOLETE core_file_command (filename, from_tty) */
+/* OBSOLETE      char *filename; */
+/* OBSOLETE      int from_tty; */
+/* OBSOLETE { */
+/* OBSOLETE   int val; */
+/* OBSOLETE  */
+/* OBSOLETE   /* Discard all vestiges of any previous core file */
+/* OBSOLETE      and mark data and stack spaces as empty.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE   if (corefile) */
+/* OBSOLETE     free (corefile); */
+/* OBSOLETE   corefile = 0; */
+/* OBSOLETE  */
+/* OBSOLETE   if (corechan >= 0) */
+/* OBSOLETE     close (corechan); */
+/* OBSOLETE   corechan = -1; */
+/* OBSOLETE  */
+/* OBSOLETE   data_start = 0; */
+/* OBSOLETE   data_end = 0; */
+/* OBSOLETE   stack_start = STACK_END_ADDR; */
+/* OBSOLETE   stack_end = STACK_END_ADDR; */
+/* OBSOLETE  */
+/* OBSOLETE   /* Now, if a new core file was specified, open it and digest it.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE   if (filename) */
+/* OBSOLETE     { */
+/* OBSOLETE       filename = tilde_expand (filename); */
+/* OBSOLETE       make_cleanup (free, filename); */
+/* OBSOLETE  */
+/* OBSOLETE       if (have_inferior_p ()) */
+/* OBSOLETE 	error ("To look at a core file, you must kill the program with \"kill\"."); */
+/* OBSOLETE       corechan = open (filename, O_RDONLY, 0); */
+/* OBSOLETE       if (corechan < 0) */
+/* OBSOLETE 	perror_with_name (filename); */
+/* OBSOLETE       /* 4.2-style (and perhaps also sysV-style) core dump file.  *x/ */
+/* OBSOLETE       { */
+/* OBSOLETE 	struct user u; */
+/* OBSOLETE  */
+/* OBSOLETE 	unsigned int reg_offset, fp_reg_offset; */
+/* OBSOLETE  */
+/* OBSOLETE 	val = myread (corechan, &u, sizeof u); */
+/* OBSOLETE 	if (val < 0) */
+/* OBSOLETE 	  perror_with_name ("Not a core file: reading upage"); */
+/* OBSOLETE 	if (val != sizeof u) */
+/* OBSOLETE 	  error ("Not a core file: could only read %d bytes", val); */
+/* OBSOLETE  */
+/* OBSOLETE 	/* We are depending on exec_file_command having been called */
+/* OBSOLETE 	   previously to set exec_data_start.  Since the executable */
+/* OBSOLETE 	   and the core file share the same text segment, the address */
+/* OBSOLETE 	   of the data segment will be the same in both.  *x/ */
+/* OBSOLETE 	data_start = exec_data_start; */
+/* OBSOLETE  */
+/* OBSOLETE 	data_end = data_start + NBPG * u.u_dsize; */
+/* OBSOLETE 	stack_start = stack_end - NBPG * u.u_ssize; */
+/* OBSOLETE 	data_offset = NBPG * UPAGES; */
+/* OBSOLETE 	stack_offset = NBPG * (UPAGES + u.u_dsize); */
+/* OBSOLETE  */
+/* OBSOLETE 	/* Some machines put an absolute address in here and some put */
+/* OBSOLETE 	   the offset in the upage of the regs.  *x/ */
+/* OBSOLETE 	reg_offset = (int) u.u_ar0; */
+/* OBSOLETE 	if (reg_offset > NBPG * UPAGES) */
+/* OBSOLETE 	  reg_offset -= KERNEL_U_ADDR; */
+/* OBSOLETE 	fp_reg_offset = (char *) &u.u_fp_regs - (char *) &u; */
+/* OBSOLETE  */
+/* OBSOLETE 	/* I don't know where to find this info. */
+/* OBSOLETE 	   So, for now, mark it as not available.  *x/ */
+/* OBSOLETE 	N_SET_MAGIC (core_aouthdr, 0); */
+/* OBSOLETE  */
+/* OBSOLETE 	/* Read the register values out of the core file and store */
+/* OBSOLETE 	   them where `read_register' will find them.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  register int regno; */
+/* OBSOLETE  */
+/* OBSOLETE 	  for (regno = 0; regno < NUM_REGS; regno++) */
+/* OBSOLETE 	    { */
+/* OBSOLETE 	      char buf[MAX_REGISTER_RAW_SIZE]; */
+/* OBSOLETE  */
+/* OBSOLETE 	      if (regno < 16) */
+/* OBSOLETE 		val = lseek (corechan, reg_offset + 4 * regno, 0); */
+/* OBSOLETE 	      else if (regno < 24) */
+/* OBSOLETE 		val = lseek (corechan, fp_reg_offset + 4 + 12 * (regno - 24), 0); */
+/* OBSOLETE 	      else if (regno == 24) */
+/* OBSOLETE 		val = lseek (corechan, fp_reg_offset, 0); */
+/* OBSOLETE 	      else if (regno == 25) */
+/* OBSOLETE 		val = lseek (corechan, reg_offset + 4 * PC, 0); */
+/* OBSOLETE 	      if (val < 0 */
+/* OBSOLETE 		  || (val = myread (corechan, buf, sizeof buf)) < 0) */
+/* OBSOLETE 		{ */
+/* OBSOLETE 		  char *buffer = (char *) alloca (strlen (REGISTER_NAME (regno)) */
+/* OBSOLETE 						  + 30); */
+/* OBSOLETE 		  strcpy (buffer, "Reading register "); */
+/* OBSOLETE 		  strcat (buffer, REGISTER_NAME (regno)); */
+/* OBSOLETE  */
+/* OBSOLETE 		  perror_with_name (buffer); */
+/* OBSOLETE 		} */
+/* OBSOLETE  */
+/* OBSOLETE 	      if (regno == PC_REGNUM) */
+/* OBSOLETE 		*(int *) buf = GET_PC_PART (*(int *) buf); */
+/* OBSOLETE 	      supply_register (regno, buf); */
+/* OBSOLETE 	    } */
+/* OBSOLETE 	} */
+/* OBSOLETE       } */
+/* OBSOLETE       if (filename[0] == '/') */
+/* OBSOLETE 	corefile = savestring (filename, strlen (filename)); */
+/* OBSOLETE       else */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  corefile = concat (current_directory, "/", filename, NULL); */
+/* OBSOLETE 	} */
+/* OBSOLETE  */
+/* OBSOLETE       flush_cached_frames (); */
+/* OBSOLETE       select_frame (get_current_frame (), 0); */
+/* OBSOLETE       validate_files (); */
+/* OBSOLETE     } */
+/* OBSOLETE   else if (from_tty) */
+/* OBSOLETE     printf ("No core file now.\n"); */
+/* OBSOLETE } */
+/* OBSOLETE  */
+/* OBSOLETE #if 0 */
+/* OBSOLETE /* Work with core dump and executable files, for GDB.  */
+/* OBSOLETE    This code would be in corefile.c if it weren't machine-dependent. *x/ */
+/* OBSOLETE  */
+/* OBSOLETE /* Structure to describe the chain of shared libraries used */
+/* OBSOLETE    by the execfile. */
+/* OBSOLETE    e.g. prog shares Xt which shares X11 which shares c. *x/ */
+/* OBSOLETE  */
+/* OBSOLETE struct shared_library */
+/* OBSOLETE { */
+/* OBSOLETE   struct exec_header header; */
+/* OBSOLETE   char name[SHLIBLEN]; */
+/* OBSOLETE   CORE_ADDR text_start;		/* CORE_ADDR of 1st byte of text, this file *x/ */
+/* OBSOLETE   long data_offset;		/* offset of data section in file *x/ */
+/* OBSOLETE   int chan;			/* file descriptor for the file *x/ */
+/* OBSOLETE   struct shared_library *shares;	/* library this one shares *x/ */
+/* OBSOLETE }; */
+/* OBSOLETE static struct shared_library *shlib = 0; */
+/* OBSOLETE  */
+/* OBSOLETE /* Hook for `exec_file_command' command to call.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE extern void (*exec_file_display_hook) (); */
+/* OBSOLETE  */
+/* OBSOLETE static CORE_ADDR unshared_text_start; */
+/* OBSOLETE  */
+/* OBSOLETE /* extended header from exec file (for shared library info) *x/ */
+/* OBSOLETE  */
+/* OBSOLETE static struct exec_header exec_header; */
+/* OBSOLETE  */
+/* OBSOLETE void */
+/* OBSOLETE exec_file_command (filename, from_tty) */
+/* OBSOLETE      char *filename; */
+/* OBSOLETE      int from_tty; */
+/* OBSOLETE { */
+/* OBSOLETE   int val; */
+/* OBSOLETE  */
+/* OBSOLETE   /* Eliminate all traces of old exec file. */
+/* OBSOLETE      Mark text segment as empty.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE   if (execfile) */
+/* OBSOLETE     free (execfile); */
+/* OBSOLETE   execfile = 0; */
+/* OBSOLETE   data_start = 0; */
+/* OBSOLETE   data_end -= exec_data_start; */
+/* OBSOLETE   text_start = 0; */
+/* OBSOLETE   unshared_text_start = 0; */
+/* OBSOLETE   text_end = 0; */
+/* OBSOLETE   exec_data_start = 0; */
+/* OBSOLETE   exec_data_end = 0; */
+/* OBSOLETE   if (execchan >= 0) */
+/* OBSOLETE     close (execchan); */
+/* OBSOLETE   execchan = -1; */
+/* OBSOLETE   if (shlib) */
+/* OBSOLETE     { */
+/* OBSOLETE       close_shared_library (shlib); */
+/* OBSOLETE       shlib = 0; */
+/* OBSOLETE     } */
+/* OBSOLETE  */
+/* OBSOLETE   /* Now open and digest the file the user requested, if any.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE   if (filename) */
+/* OBSOLETE     { */
+/* OBSOLETE       filename = tilde_expand (filename); */
+/* OBSOLETE       make_cleanup (free, filename); */
+/* OBSOLETE  */
+/* OBSOLETE       execchan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0, */
+/* OBSOLETE 			&execfile); */
+/* OBSOLETE       if (execchan < 0) */
+/* OBSOLETE 	perror_with_name (filename); */
+/* OBSOLETE  */
+/* OBSOLETE       { */
+/* OBSOLETE 	struct stat st_exec; */
+/* OBSOLETE  */
+/* OBSOLETE #ifdef HEADER_SEEK_FD */
+/* OBSOLETE 	HEADER_SEEK_FD (execchan); */
+/* OBSOLETE #endif */
+/* OBSOLETE  */
+/* OBSOLETE 	val = myread (execchan, &exec_header, sizeof exec_header); */
+/* OBSOLETE 	exec_aouthdr = exec_header.a_exec; */
+/* OBSOLETE  */
+/* OBSOLETE 	if (val < 0) */
+/* OBSOLETE 	  perror_with_name (filename); */
+/* OBSOLETE  */
+/* OBSOLETE 	text_start = 0x8000; */
+/* OBSOLETE  */
+/* OBSOLETE 	/* Look for shared library if needed *x/ */
+/* OBSOLETE 	if (exec_header.a_exec.a_magic & MF_USES_SL) */
+/* OBSOLETE 	  shlib = open_shared_library (exec_header.a_shlibname, text_start); */
+/* OBSOLETE  */
+/* OBSOLETE 	text_offset = N_TXTOFF (exec_aouthdr); */
+/* OBSOLETE 	exec_data_offset = N_TXTOFF (exec_aouthdr) + exec_aouthdr.a_text; */
+/* OBSOLETE  */
+/* OBSOLETE 	if (shlib) */
+/* OBSOLETE 	  { */
+/* OBSOLETE 	    unshared_text_start = shared_text_end (shlib) & ~0x7fff; */
+/* OBSOLETE 	    stack_start = shlib->header.a_exec.a_sldatabase; */
+/* OBSOLETE 	    stack_end = STACK_END_ADDR; */
+/* OBSOLETE 	  } */
+/* OBSOLETE 	else */
+/* OBSOLETE 	  unshared_text_start = 0x8000; */
+/* OBSOLETE 	text_end = unshared_text_start + exec_aouthdr.a_text; */
+/* OBSOLETE  */
+/* OBSOLETE 	exec_data_start = unshared_text_start + exec_aouthdr.a_text; */
+/* OBSOLETE 	exec_data_end = exec_data_start + exec_aouthdr.a_data; */
+/* OBSOLETE  */
+/* OBSOLETE 	data_start = exec_data_start; */
+/* OBSOLETE 	data_end += exec_data_start; */
+/* OBSOLETE  */
+/* OBSOLETE 	fstat (execchan, &st_exec); */
+/* OBSOLETE 	exec_mtime = st_exec.st_mtime; */
+/* OBSOLETE       } */
+/* OBSOLETE  */
+/* OBSOLETE       validate_files (); */
+/* OBSOLETE     } */
+/* OBSOLETE   else if (from_tty) */
+/* OBSOLETE     printf ("No executable file now.\n"); */
+/* OBSOLETE  */
+/* OBSOLETE   /* Tell display code (if any) about the changed file name.  *x/ */
+/* OBSOLETE   if (exec_file_display_hook) */
+/* OBSOLETE     (*exec_file_display_hook) (filename); */
+/* OBSOLETE } */
+/* OBSOLETE #endif */
+/* OBSOLETE  */
+/* OBSOLETE #if 0 */
+/* OBSOLETE /* Read from the program's memory (except for inferior processes). */
+/* OBSOLETE    This function is misnamed, since it only reads, never writes; and */
+/* OBSOLETE    since it will use the core file and/or executable file as necessary. */
+/* OBSOLETE  */
+/* OBSOLETE    It should be extended to write as well as read, FIXME, for patching files. */
+/* OBSOLETE  */
+/* OBSOLETE    Return 0 if address could be read, EIO if addresss out of bounds.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE int */
+/* OBSOLETE xfer_core_file (memaddr, myaddr, len) */
+/* OBSOLETE      CORE_ADDR memaddr; */
+/* OBSOLETE      char *myaddr; */
+/* OBSOLETE      int len; */
+/* OBSOLETE { */
+/* OBSOLETE   register int i; */
+/* OBSOLETE   register int val; */
+/* OBSOLETE   int xferchan; */
+/* OBSOLETE   char **xferfile; */
+/* OBSOLETE   int fileptr; */
+/* OBSOLETE   int returnval = 0; */
+/* OBSOLETE  */
+/* OBSOLETE   while (len > 0) */
+/* OBSOLETE     { */
+/* OBSOLETE       xferfile = 0; */
+/* OBSOLETE       xferchan = 0; */
+/* OBSOLETE  */
+/* OBSOLETE       /* Determine which file the next bunch of addresses reside in, */
+/* OBSOLETE          and where in the file.  Set the file's read/write pointer */
+/* OBSOLETE          to point at the proper place for the desired address */
+/* OBSOLETE          and set xferfile and xferchan for the correct file. */
+/* OBSOLETE  */
+/* OBSOLETE          If desired address is nonexistent, leave them zero. */
+/* OBSOLETE  */
+/* OBSOLETE          i is set to the number of bytes that can be handled */
+/* OBSOLETE          along with the next address. */
+/* OBSOLETE  */
+/* OBSOLETE          We put the most likely tests first for efficiency.  *x/ */
+/* OBSOLETE  */
+/* OBSOLETE       /* Note that if there is no core file */
+/* OBSOLETE          data_start and data_end are equal.  *x/ */
+/* OBSOLETE       if (memaddr >= data_start && memaddr < data_end) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, data_end - memaddr); */
+/* OBSOLETE 	  fileptr = memaddr - data_start + data_offset; */
+/* OBSOLETE 	  xferfile = &corefile; */
+/* OBSOLETE 	  xferchan = corechan; */
+/* OBSOLETE 	} */
+/* OBSOLETE       /* Note that if there is no core file */
+/* OBSOLETE          stack_start and stack_end define the shared library data.  *x/ */
+/* OBSOLETE       else if (memaddr >= stack_start && memaddr < stack_end) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  if (corechan < 0) */
+/* OBSOLETE 	    { */
+/* OBSOLETE 	      struct shared_library *lib; */
+/* OBSOLETE 	      for (lib = shlib; lib; lib = lib->shares) */
+/* OBSOLETE 		if (memaddr >= lib->header.a_exec.a_sldatabase && */
+/* OBSOLETE 		    memaddr < lib->header.a_exec.a_sldatabase + */
+/* OBSOLETE 		    lib->header.a_exec.a_data) */
+/* OBSOLETE 		  break; */
+/* OBSOLETE 	      if (lib) */
+/* OBSOLETE 		{ */
+/* OBSOLETE 		  i = min (len, lib->header.a_exec.a_sldatabase + */
+/* OBSOLETE 			   lib->header.a_exec.a_data - memaddr); */
+/* OBSOLETE 		  fileptr = lib->data_offset + memaddr - */
+/* OBSOLETE 		    lib->header.a_exec.a_sldatabase; */
+/* OBSOLETE 		  xferfile = execfile; */
+/* OBSOLETE 		  xferchan = lib->chan; */
+/* OBSOLETE 		} */
+/* OBSOLETE 	    } */
+/* OBSOLETE 	  else */
+/* OBSOLETE 	    { */
+/* OBSOLETE 	      i = min (len, stack_end - memaddr); */
+/* OBSOLETE 	      fileptr = memaddr - stack_start + stack_offset; */
+/* OBSOLETE 	      xferfile = &corefile; */
+/* OBSOLETE 	      xferchan = corechan; */
+/* OBSOLETE 	    } */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (corechan < 0 */
+/* OBSOLETE 	       && memaddr >= exec_data_start && memaddr < exec_data_end) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, exec_data_end - memaddr); */
+/* OBSOLETE 	  fileptr = memaddr - exec_data_start + exec_data_offset; */
+/* OBSOLETE 	  xferfile = &execfile; */
+/* OBSOLETE 	  xferchan = execchan; */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (memaddr >= text_start && memaddr < text_end) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  struct shared_library *lib; */
+/* OBSOLETE 	  for (lib = shlib; lib; lib = lib->shares) */
+/* OBSOLETE 	    if (memaddr >= lib->text_start && */
+/* OBSOLETE 		memaddr < lib->text_start + lib->header.a_exec.a_text) */
+/* OBSOLETE 	      break; */
+/* OBSOLETE 	  if (lib) */
+/* OBSOLETE 	    { */
+/* OBSOLETE 	      i = min (len, lib->header.a_exec.a_text + */
+/* OBSOLETE 		       lib->text_start - memaddr); */
+/* OBSOLETE 	      fileptr = memaddr - lib->text_start + text_offset; */
+/* OBSOLETE 	      xferfile = &execfile; */
+/* OBSOLETE 	      xferchan = lib->chan; */
+/* OBSOLETE 	    } */
+/* OBSOLETE 	  else */
+/* OBSOLETE 	    { */
+/* OBSOLETE 	      i = min (len, text_end - memaddr); */
+/* OBSOLETE 	      fileptr = memaddr - unshared_text_start + text_offset; */
+/* OBSOLETE 	      xferfile = &execfile; */
+/* OBSOLETE 	      xferchan = execchan; */
+/* OBSOLETE 	    } */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (memaddr < text_start) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, text_start - memaddr); */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (memaddr >= text_end */
+/* OBSOLETE 	       && memaddr < (corechan >= 0 ? data_start : exec_data_start)) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, data_start - memaddr); */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (corechan >= 0 */
+/* OBSOLETE 	       && memaddr >= data_end && memaddr < stack_start) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, stack_start - memaddr); */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (corechan < 0 && memaddr >= exec_data_end) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, -memaddr); */
+/* OBSOLETE 	} */
+/* OBSOLETE       else if (memaddr >= stack_end && stack_end != 0) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  i = min (len, -memaddr); */
+/* OBSOLETE 	} */
+/* OBSOLETE       else */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  /* Address did not classify into one of the known ranges. */
+/* OBSOLETE 	     This shouldn't happen; we catch the endpoints.  *x/ */
+/* OBSOLETE 	  internal_error ("Bad case logic in xfer_core_file."); */
+/* OBSOLETE 	} */
+/* OBSOLETE  */
+/* OBSOLETE       /* Now we know which file to use. */
+/* OBSOLETE          Set up its pointer and transfer the data.  *x/ */
+/* OBSOLETE       if (xferfile) */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  if (*xferfile == 0) */
+/* OBSOLETE 	    if (xferfile == &execfile) */
+/* OBSOLETE 	      error ("No program file to examine."); */
+/* OBSOLETE 	    else */
+/* OBSOLETE 	      error ("No core dump file or running program to examine."); */
+/* OBSOLETE 	  val = lseek (xferchan, fileptr, 0); */
+/* OBSOLETE 	  if (val < 0) */
+/* OBSOLETE 	    perror_with_name (*xferfile); */
+/* OBSOLETE 	  val = myread (xferchan, myaddr, i); */
+/* OBSOLETE 	  if (val < 0) */
+/* OBSOLETE 	    perror_with_name (*xferfile); */
+/* OBSOLETE 	} */
+/* OBSOLETE       /* If this address is for nonexistent memory, */
+/* OBSOLETE          read zeros if reading, or do nothing if writing. */
+/* OBSOLETE          Actually, we never right.  *x/ */
+/* OBSOLETE       else */
+/* OBSOLETE 	{ */
+/* OBSOLETE 	  memset (myaddr, '\0', i); */
+/* OBSOLETE 	  returnval = EIO; */
+/* OBSOLETE 	} */
+/* OBSOLETE  */
+/* OBSOLETE       memaddr += i; */
+/* OBSOLETE       myaddr += i; */
+/* OBSOLETE       len -= i; */
+/* OBSOLETE     } */
+/* OBSOLETE   return returnval; */
+/* OBSOLETE } */
+/* OBSOLETE #endif */