Initial creation of sourceware repository

1 files changed, 0 insertions, 799 deletions

diff --git a/gdb/exec.c b/gdb/exec.c
deleted file mode 100644
index c20e2fc..0000000
--- a/gdb/exec.c
+++ /dev/null
@@ -1,799 +0,0 @@
-/* Work with executable files, for GDB. 
-   Copyright 1988, 1989, 1991, 1992, 1993, 1994, 1997, 1998
-             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 "target.h"
-#include "gdbcmd.h"
-#include "language.h"
-#include "symfile.h"
-#include "objfiles.h"
-
-#ifdef USG
-#include <sys/types.h>
-#endif
-
-#include <fcntl.h>
-#include "gdb_string.h"
-
-#include "gdbcore.h"
-
-#include <ctype.h>
-#include "gdb_stat.h"
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-
-#include "xcoffsolib.h"
-
-struct vmap *map_vmap PARAMS ((bfd *, bfd *));
-
-void (*file_changed_hook) PARAMS ((char *));
-
-/* Prototypes for local functions */
-
-static void add_to_section_table PARAMS ((bfd *, sec_ptr, PTR));
-
-static void exec_close PARAMS ((int));
-
-static void file_command PARAMS ((char *, int));
-
-static void set_section_command PARAMS ((char *, int));
-
-static void exec_files_info PARAMS ((struct target_ops *));
-
-static void bfdsec_to_vmap PARAMS ((bfd *, sec_ptr, PTR));
-
-static int ignore PARAMS ((CORE_ADDR, char *));
-
-extern int info_verbose;
-
-/* The Binary File Descriptor handle for the executable file.  */
-
-bfd *exec_bfd = NULL;
-
-/* Whether to open exec and core files read-only or read-write.  */
-
-int write_files = 0;
-
-/* Text start and end addresses (KLUDGE) if needed */
-
-#ifndef NEED_TEXT_START_END
-#define NEED_TEXT_START_END (0)
-#endif
-CORE_ADDR text_start = 0;
-CORE_ADDR text_end   = 0;
-
-struct vmap *vmap;
-
-/* Forward decl */
-
-extern struct target_ops exec_ops;
-
-/* ARGSUSED */
-static void
-exec_close (quitting)
-     int quitting;
-{
-  int need_symtab_cleanup = 0;
-  struct vmap *vp, *nxt;
-  
-  for (nxt = vmap; nxt != NULL; )
-    {
-      vp = nxt;
-      nxt = vp->nxt;
-
-      /* if there is an objfile associated with this bfd,
-	 free_objfile() will do proper cleanup of objfile *and* bfd. */
-		   
-      if (vp->objfile)
-	{
-	  free_objfile (vp->objfile);
-	  need_symtab_cleanup = 1;
-	}
-      else if (vp->bfd != exec_bfd)
-	/* FIXME-leak: We should be freeing vp->name too, I think.  */
-	if (!bfd_close (vp->bfd))
-	  warning ("cannot close \"%s\": %s",
-		   vp->name, bfd_errmsg (bfd_get_error ()));
-
-      /* FIXME: This routine is #if 0'd in symfile.c.  What should we
-	 be doing here?  Should we just free everything in
-	 vp->objfile->symtabs?  Should free_objfile do that?
-	 FIXME-as-well: free_objfile already free'd vp->name, so it isn't
-	 valid here.  */
-      free_named_symtabs (vp->name);
-      free (vp);
-    }
-
-  vmap = NULL;
-
-  if (exec_bfd)
-    {
-      char *name = bfd_get_filename (exec_bfd);
-
-      if (!bfd_close (exec_bfd))
-	warning ("cannot close \"%s\": %s",
-		 name, bfd_errmsg (bfd_get_error ()));
-      free (name);
-      exec_bfd = NULL;
-    }
-
-  if (exec_ops.to_sections)
-    {
-      free ((PTR)exec_ops.to_sections);
-      exec_ops.to_sections = NULL;
-      exec_ops.to_sections_end = NULL;
-    }
-}
-
-/*  Process the first arg in ARGS as the new exec file.
-
-    This function is intended to be behave essentially the same
-    as exec_file_command, except that the latter will detect when
-    a target is being debugged, and will ask the user whether it
-    should be shut down first.  (If the answer is "no", then the
-    new file is ignored.)
-
-    This file is used by exec_file_command, to do the work of opening
-    and processing the exec file after any prompting has happened.
-
-    And, it is used by child_attach, when the attach command was
-    given a pid but not a exec pathname, and the attach command could
-    figure out the pathname from the pid.  (In this case, we shouldn't
-    ask the user whether the current target should be shut down --
-    we're supplying the exec pathname late for good reason.) */
-
-void
-exec_file_attach (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  char **argv;
-  char *filename;
-
-  /* Remove any previous exec file.  */
-  unpush_target (&exec_ops);
-
-  /* Now open and digest the file the user requested, if any.  */
-
-  if (args)
-    {
-      char *scratch_pathname;
-      int scratch_chan;
-      
-      /* Scan through the args and pick up the first non option arg
-	 as the filename.  */
-
-      argv = buildargv (args);
-      if (argv == NULL)
-	nomem (0);
-
-      make_cleanup ((make_cleanup_func) freeargv, (char *) argv);
-
-      for (; (*argv != NULL) && (**argv == '-'); argv++) {;}
-      if (*argv == NULL)
-	error ("no exec file name was specified");
-
-      filename = tilde_expand (*argv);
-      make_cleanup (free, filename);
-      
-      scratch_chan = openp (getenv ("PATH"), 1, filename, 
-			    write_files? O_RDWR|O_BINARY: O_RDONLY|O_BINARY, 0,
-			    &scratch_pathname);
-#if defined(__GO32__) || defined(_WIN32)
-      if (scratch_chan < 0)
-      {
-	char *exename = alloca (strlen (filename) + 5);
-	strcat (strcpy (exename, filename), ".exe");
-	scratch_chan = openp (getenv ("PATH"), 1, exename, write_files ?
-		O_RDWR|O_BINARY : O_RDONLY|O_BINARY, 0, &scratch_pathname);
-      }
-#endif
-      if (scratch_chan < 0)
-	perror_with_name (filename);
-      exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan);
-
-      if (!exec_bfd)
-	error ("\"%s\": could not open as an executable file: %s",
-	       scratch_pathname, bfd_errmsg (bfd_get_error ()));
-
-      /* At this point, scratch_pathname and exec_bfd->name both point to the
-	 same malloc'd string.  However exec_close() will attempt to free it
-	 via the exec_bfd->name pointer, so we need to make another copy and
-	 leave exec_bfd as the new owner of the original copy. */
-      scratch_pathname = strdup (scratch_pathname);
-      make_cleanup (free, scratch_pathname);
-      
-      if (!bfd_check_format (exec_bfd, bfd_object))
-	{
-	  /* Make sure to close exec_bfd, or else "run" might try to use
-	     it.  */
-	  exec_close (0);
-	  error ("\"%s\": not in executable format: %s",
-		 scratch_pathname, bfd_errmsg (bfd_get_error ()));
-	}
-
-      /* FIXME - This should only be run for RS6000, but the ifdef is a poor
-	 way to accomplish.  */
-#ifdef IBM6000_TARGET
-      /* Setup initial vmap. */
-
-      map_vmap (exec_bfd, 0);
-      if (vmap == NULL)
-	{
-	  /* Make sure to close exec_bfd, or else "run" might try to use
-	     it.  */
-	  exec_close (0);
-	  error ("\"%s\": can't find the file sections: %s",
-		 scratch_pathname, bfd_errmsg (bfd_get_error ()));
-	}
-#endif /* IBM6000_TARGET */
-
-      if (build_section_table (exec_bfd, &exec_ops.to_sections,
-				&exec_ops.to_sections_end))
-	{
-	  /* Make sure to close exec_bfd, or else "run" might try to use
-	     it.  */
-	  exec_close (0);
-	  error ("\"%s\": can't find the file sections: %s", 
-		 scratch_pathname, bfd_errmsg (bfd_get_error ()));
-	}
-
-      /* text_end is sometimes used for where to put call dummies.  A
-	 few ports use these for other purposes too.  */
-      if (NEED_TEXT_START_END)
-	{
-	  struct section_table *p;
-	  
-	  /* Set text_start to the lowest address of the start of any
-	     readonly code section and set text_end to the highest
-	     address of the end of any readonly code section.  */
-	  /* FIXME: The comment above does not match the code.  The
-	     code checks for sections with are either code *or*
-	     readonly.  */
-	  text_start = ~(CORE_ADDR)0;
-	  text_end = (CORE_ADDR)0;
-	  for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++)
-	    if (bfd_get_section_flags (p->bfd, p->the_bfd_section)
-		& (SEC_CODE | SEC_READONLY))
-	      {
-		if (text_start > p->addr) 
-		  text_start = p->addr;
-		if (text_end < p->endaddr)
-		  text_end = p->endaddr;
-	      }
-	}
-
-      validate_files ();
-
-      set_gdbarch_from_file (exec_bfd);
-
-      push_target (&exec_ops);
-
-      /* Tell display code (if any) about the changed file name.  */
-      if (exec_file_display_hook)
-	(*exec_file_display_hook) (filename);
-    }
-  else if (from_tty)
-    printf_unfiltered ("No executable file now.\n");
-}
-
-/*  Process the first arg in ARGS as the new exec file.
-
-    Note that we have to explicitly ignore additional args, since we can
-    be called from file_command(), which also calls symbol_file_command()
-    which can take multiple args. */
-
-void
-exec_file_command (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  char **argv;
-  char *filename;
-
-  target_preopen (from_tty);
-
-  exec_file_attach (args, from_tty);
-}
-
-/* Set both the exec file and the symbol file, in one command.  
-   What a novelty.  Why did GDB go through four major releases before this
-   command was added?  */
-
-static void
-file_command (arg, from_tty)
-     char *arg;
-     int from_tty;
-{
-  /* FIXME, if we lose on reading the symbol file, we should revert
-     the exec file, but that's rough.  */
-  exec_file_command (arg, from_tty);
-  symbol_file_command (arg, from_tty);
-  if (file_changed_hook)
-    file_changed_hook (arg);
-}
-
-
-/* Locate all mappable sections of a BFD file. 
-   table_pp_char is a char * to get it through bfd_map_over_sections;
-   we cast it back to its proper type.  */
-
-static void
-add_to_section_table (abfd, asect, table_pp_char)
-     bfd *abfd;
-     sec_ptr asect;
-     PTR table_pp_char;
-{
-  struct section_table **table_pp = (struct section_table **)table_pp_char;
-  flagword aflag;
-
-  aflag = bfd_get_section_flags (abfd, asect);
-  if (!(aflag & SEC_ALLOC))
-    return;
-  if (0 == bfd_section_size (abfd, asect))
-    return;
-  (*table_pp)->bfd = abfd;
-  (*table_pp)->the_bfd_section = asect;
-  (*table_pp)->addr = bfd_section_vma (abfd, asect);
-  (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect);
-  (*table_pp)++;
-}
-
-/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
-   Returns 0 if OK, 1 on error.  */
-
-int
-build_section_table (some_bfd, start, end)
-     bfd *some_bfd;
-     struct section_table **start, **end;
-{
-  unsigned count;
-
-  count = bfd_count_sections (some_bfd);
-  if (*start)
-    free ((PTR)*start);
-  *start = (struct section_table *) xmalloc (count * sizeof (**start));
-  *end = *start;
-  bfd_map_over_sections (some_bfd, add_to_section_table, (char *)end);
-  if (*end > *start + count)
-    abort();
-  /* We could realloc the table, but it probably loses for most files.  */
-  return 0;
-}
-
-static void
-bfdsec_to_vmap(abfd, sect, arg3) 
-     bfd *abfd;
-     sec_ptr sect;
-     PTR arg3;
-{
-  struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3;
-  struct vmap *vp;
-
-  vp = vmap_bfd->pvmap;
-
-  if ((bfd_get_section_flags (abfd, sect) & SEC_LOAD) == 0)
-    return;
-
-  if (STREQ (bfd_section_name (abfd, sect), ".text"))
-    {
-      vp->tstart = bfd_section_vma (abfd, sect);
-      vp->tend = vp->tstart + bfd_section_size (abfd, sect);
-      vp->tvma = bfd_section_vma (abfd, sect);
-      vp->toffs = sect->filepos;
-    }
-  else if (STREQ (bfd_section_name (abfd, sect), ".data"))
-    {
-      vp->dstart = bfd_section_vma (abfd, sect);
-      vp->dend = vp->dstart + bfd_section_size (abfd, sect);
-      vp->dvma = bfd_section_vma (abfd, sect);
-    }
-  /* Silently ignore other types of sections. (FIXME?)  */
-}
-
-/* Make a vmap for ABFD which might be a member of the archive ARCH.
-   Return the new vmap.  */
-
-struct vmap *
-map_vmap (abfd, arch)
-     bfd *abfd;
-     bfd *arch;
-{
-  struct vmap_and_bfd vmap_bfd;
-  struct vmap *vp, **vpp;
-
-  vp = (struct vmap *) xmalloc (sizeof (*vp));
-  memset ((char *) vp, '\0', sizeof (*vp));
-  vp->nxt = 0;
-  vp->bfd = abfd;
-  vp->name = bfd_get_filename (arch ? arch : abfd);
-  vp->member = arch ? bfd_get_filename (abfd) : "";
-  
-  vmap_bfd.pbfd = arch;
-  vmap_bfd.pvmap = vp;
-  bfd_map_over_sections (abfd, bfdsec_to_vmap, &vmap_bfd);
-
-  /* Find the end of the list and append. */
-  for (vpp = &vmap; *vpp; vpp = &(*vpp)->nxt)
-    ;
-  *vpp = vp;
-
-  return vp;
-}
-
-/* Read or write the exec file.
-
-   Args are address within a BFD file, address within gdb address-space,
-   length, and a flag indicating whether to read or write.
-
-   Result is a length:
-
-	0:    We cannot handle this address and length.
-	> 0:  We have handled N bytes starting at this address.
-	      (If N == length, we did it all.)  We might be able
-	      to handle more bytes beyond this length, but no
-	      promises.
-	< 0:  We cannot handle this address, but if somebody
-	      else handles (-N) bytes, we can start from there.
-
-    The same routine is used to handle both core and exec files;
-    we just tail-call it with more arguments to select between them.  */
-
-int
-xfer_memory (memaddr, myaddr, len, write, target)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-     int write;
-     struct target_ops *target;
-{
-  boolean res;
-  struct section_table *p;
-  CORE_ADDR nextsectaddr, memend;
-  boolean (*xfer_fn) PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
-  asection *section;
-
-  if (len <= 0)
-    abort();
-
-  if (overlay_debugging)
-    {
-      section = find_pc_overlay (memaddr);
-      if (pc_in_unmapped_range (memaddr, section))
-	memaddr = overlay_mapped_address (memaddr, section);
-    }
-
-  memend = memaddr + len;
-  xfer_fn = write ? bfd_set_section_contents : bfd_get_section_contents;
-  nextsectaddr = memend;
-
-#if 0 /* Stu's implementation */
-/* If a section has been specified, try to use it.  Note that we cannot use the
-   specified section directly.  This is because it usually comes from the
-   symbol file, which may be different from the exec or core file.  Instead, we
-   have to lookup the specified section by name in the bfd associated with
-   to_sections.  */
-
-  if (target_memory_bfd_section)
-    {
-      asection *s;
-      bfd *abfd;
-      asection *target_section;
-      bfd *target_bfd;
-
-      s = target_memory_bfd_section;
-      abfd = s->owner;
-
-      target_bfd = target->to_sections->bfd;
-      target_section = bfd_get_section_by_name (target_bfd, bfd_section_name (abfd, s));
-
-      if (target_section)
-	{
-	  bfd_vma sec_addr;
-	  bfd_size_type sec_size;
-
-	  sec_addr = bfd_section_vma (target_bfd, target_section);
-	  sec_size = target_section->_raw_size;
-
-	  /* Make sure the requested memory starts inside the section.  */
-
-	  if (memaddr >= sec_addr
-	      && memaddr < sec_addr + sec_size)
-	    {
-	      /* Cut back length in case request overflows the end of the section. */
-	      len = min (len, sec_addr + sec_size - memaddr);
-
-	      res = xfer_fn (target_bfd, target_section, myaddr, memaddr - sec_addr, len);
-
-	      return res ? len : 0;
-	    }
-	}
-    }
-#endif /* 0, Stu's implementation */
-  for (p = target->to_sections; p < target->to_sections_end; p++)
-    {
-      if (overlay_debugging && section && p->the_bfd_section &&
-	  strcmp (section->name, p->the_bfd_section->name) != 0)
-	continue;	/* not the section we need */
-      if (memaddr >= p->addr)
- 	if (memend <= p->endaddr)
-	  {
-	    /* Entire transfer is within this section.  */
-	    res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
-			   memaddr - p->addr, len);
-	    return (res != 0) ? len : 0;
-	  }
-	else if (memaddr >= p->endaddr)
-	  {
-	    /* This section ends before the transfer starts.  */
-	    continue;
-	  }
-	else 
-	  {
-	    /* This section overlaps the transfer.  Just do half.  */
-	    len = p->endaddr - memaddr;
-	    res = xfer_fn (p->bfd, p->the_bfd_section, myaddr,
-			   memaddr - p->addr, len);
-	    return (res != 0) ? len : 0;
-	  }
-      else
-	nextsectaddr = min (nextsectaddr, p->addr);
-    }
-
-  if (nextsectaddr >= memend)
-    return 0;				/* We can't help */
-  else
-    return - (nextsectaddr - memaddr);	/* Next boundary where we can help */
-}
-
-#ifdef FIXME
-#ifdef REG_STACK_SEGMENT
-/* MOVE TO BFD... */
-    /* Pyramids and AM29000s have an extra segment in the virtual address space
-       for the (control) stack of register-window frames.  The AM29000 folk
-       call it the "register stack" rather than the "memory stack".  */
-    else if (memaddr >= reg_stack_start && memaddr < reg_stack_end)
-      {
-	i = min (len, reg_stack_end - memaddr);
-	fileptr = memaddr - reg_stack_start + reg_stack_offset;
-	wanna_xfer = coredata;
-      }
-#endif				/* REG_STACK_SEGMENT */
-#endif /* FIXME */
-
-void
-print_section_info (t, abfd)
-  struct target_ops *t;
-  bfd *abfd;
-{
-  struct section_table *p;
-
-  printf_filtered ("\t`%s', ", bfd_get_filename(abfd));
-  wrap_here ("        ");
-  printf_filtered ("file type %s.\n", bfd_get_target(abfd));
-  if (abfd == exec_bfd)
-    {
-      printf_filtered ("\tEntry point: ");
-      print_address_numeric (bfd_get_start_address (abfd), 1, gdb_stdout);
-      printf_filtered ("\n");
-    }
-  for (p = t->to_sections; p < t->to_sections_end; p++)
-    {
-      /* FIXME-32x64 need a print_address_numeric with field width */
-      printf_filtered ("\t%s", local_hex_string_custom ((unsigned long) p->addr, "08l"));
-      printf_filtered (" - %s", local_hex_string_custom ((unsigned long) p->endaddr, "08l"));
-      if (info_verbose)
-	printf_filtered (" @ %s",
-			 local_hex_string_custom ((unsigned long) p->the_bfd_section->filepos, "08l"));
-      printf_filtered (" is %s", bfd_section_name (p->bfd, p->the_bfd_section));
-      if (p->bfd != abfd)
-	{
-	  printf_filtered (" in %s", bfd_get_filename (p->bfd));
-	}
-      printf_filtered ("\n");
-    }
-}
-
-static void
-exec_files_info (t)
-     struct target_ops *t;
-{
-  print_section_info (t, exec_bfd);
-
-  if (vmap)
-    {
-      struct vmap *vp;
-
-      printf_unfiltered ("\tMapping info for file `%s'.\n", vmap->name);
-      printf_unfiltered ("\t  %8.8s   %8.8s   %8.8s   %8.8s %8.8s %s\n",
-		       "tstart", "tend", "dstart", "dend", "section",
-		       "file(member)");
-
-    for (vp = vmap; vp; vp = vp->nxt)
-      printf_unfiltered ("\t0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x %s%s%s%s\n",
-			 vp->tstart, vp->tend, vp->dstart, vp->dend, vp->name,
-			 *vp->member ? "(" : "", vp->member,
-			 *vp->member ? ")" : "");
-    }
-}
-
-static void
-set_section_command (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  struct section_table *p;
-  char *secname;
-  unsigned seclen;
-  unsigned long secaddr;
-  char secprint[100];
-  long offset;
-
-  if (args == 0)
-    error ("Must specify section name and its virtual address");
-
-  /* Parse out section name */
-  for (secname = args; !isspace(*args); args++) ;
-  seclen = args - secname;
-
-  /* Parse out new virtual address */
-  secaddr = parse_and_eval_address (args);
-
-  for (p = exec_ops.to_sections; p < exec_ops.to_sections_end; p++) {
-    if (!strncmp (secname, bfd_section_name (exec_bfd, p->the_bfd_section), seclen)
-	&& bfd_section_name (exec_bfd, p->the_bfd_section)[seclen] == '\0') {
-      offset = secaddr - p->addr;
-      p->addr += offset;
-      p->endaddr += offset;
-      if (from_tty)
-	exec_files_info(&exec_ops);
-      return;
-    }
-  } 
-  if (seclen >= sizeof (secprint))
-    seclen = sizeof (secprint) - 1;
-  strncpy (secprint, secname, seclen);
-  secprint[seclen] = '\0';
-  error ("Section %s not found", secprint);
-}
-
-/* If mourn is being called in all the right places, this could be say
-   `gdb internal error' (since generic_mourn calls breakpoint_init_inferior).  */
-
-static int
-ignore (addr, contents)
-     CORE_ADDR addr;
-     char *contents;
-{
-  return 0;
-}
-
-struct target_ops exec_ops = {
-  "exec",			/* to_shortname */
-  "Local exec file",		/* to_longname */
-  "Use an executable file as a target.\n\
-Specify the filename of the executable file.", /* to_doc */
-  exec_file_command,		/* to_open */
-  exec_close,			/* to_close */
-  find_default_attach,		/* to_attach */
-  NULL,                         /* to_post_attach */
-  find_default_require_attach,	/* to_require_attach */
-  0,				/* to_detach */
-  find_default_require_detach,	/* to_require_detach */
-  0,				/* to_resume */
-  0,				/* to_wait */
-  NULL,                         /* to_post_wait */
-  0,				/* to_fetch_registers */
-  0,				/* to_store_registers */
-  0,				/* to_prepare_to_store */
-  xfer_memory,			/* to_xfer_memory */
-  exec_files_info,		/* to_files_info */
-  ignore,			/* to_insert_breakpoint */
-  ignore,			/* to_remove_breakpoint */
-  0,				/* to_terminal_init */
-  0,				/* to_terminal_inferior */
-  0,				/* to_terminal_ours_for_output */
-  0,				/* to_terminal_ours */
-  0,				/* to_terminal_info */
-  0,				/* to_kill */
-  0,				/* to_load */
-  0,				/* to_lookup_symbol */
-  find_default_create_inferior,	/* to_create_inferior */
-  NULL,                         /* to_post_startup_inferior */
-  NULL,                         /* to_acknowledge_created_inferior */
-  find_default_clone_and_follow_inferior,     /* to_clone_and_follow_inferior */
-  NULL,                         /* to_post_follow_inferior_by_clone */
-  NULL,                         /* to_insert_fork_catchpoint */
-  NULL,                         /* to_remove_fork_catchpoint */
-  NULL,                         /* to_insert_vfork_catchpoint */
-  NULL,                         /* to_remove_vfork_catchpoint */
-  NULL,                         /* to_has_forked */
-  NULL,                         /* to_has_vforked */
-  NULL,                         /* to_can_follow_vfork_prior_to_exec */
-  NULL,                         /* to_post_follow_vfork */
-  NULL,                         /* to_insert_exec_catchpoint */
-  NULL,                         /* to_remove_exec_catchpoint */
-  NULL,                         /* to_has_execd */
-  NULL,                         /* to_reported_exec_events_per_exec_call */
-  NULL,                         /* to_has_syscall_event */
-  NULL,                         /* to_has_exited */
-  0,				/* to_mourn_inferior */
-  0,				/* to_can_run */
-  0,				/* to_notice_signals */
-  0,				/* to_thread_alive */
-  0,				/* to_stop */
-  NULL,                         /* to_enable_exception_callback */
-  NULL,                         /* to_get_current_exception_event */
-  NULL,                         /* to_pid_to_exec_file */
-  NULL,                         /* to_core_file_to_sym_file */
-  file_stratum,			/* to_stratum */
-  0,				/* to_next */
-  0,				/* to_has_all_memory */
-  1,				/* to_has_memory */
-  0,				/* to_has_stack */
-  0,				/* to_has_registers */
-  0,				/* to_has_execution */
-  0,				/* to_sections */
-  0,				/* to_sections_end */
-  OPS_MAGIC,			/* to_magic */
-};
-
-void
-_initialize_exec()
-{
-  struct cmd_list_element *c;
-
-  if (!dbx_commands)
-    {
-      c = add_cmd ("file", class_files, file_command,
-		   "Use FILE as program to be debugged.\n\
-It is read for its symbols, for getting the contents of pure memory,\n\
-and it is the program executed when you use the `run' command.\n\
-If FILE cannot be found as specified, your execution directory path\n\
-($PATH) is searched for a command of that name.\n\
-No arg means to have no executable file and no symbols.", &cmdlist);
-      c->completer = filename_completer;
-    }
-
-  c = add_cmd ("exec-file", class_files, exec_file_command,
-	   "Use FILE as program for getting contents of pure memory.\n\
-If FILE cannot be found as specified, your execution directory path\n\
-is searched for a command of that name.\n\
-No arg means have no executable file.", &cmdlist);
-  c->completer = filename_completer;
-
-  add_com ("section", class_files, set_section_command,
-   "Change the base address of section SECTION of the exec file to ADDR.\n\
-This can be used if the exec file does not contain section addresses,\n\
-(such as in the a.out format), or when the addresses specified in the\n\
-file itself are wrong.  Each section must be changed separately.  The\n\
-``info files'' command lists all the sections and their addresses.");
-
-  add_show_from_set
-    (add_set_cmd ("write", class_support, var_boolean, (char *)&write_files,
-		  "Set writing into executable and core files.",
-		  &setlist),
-     &showlist);
-  
-  add_target (&exec_ops);
-}