* exec.c: Merge in RS6000 support from xcoffexec.c.

	(symfile.h, objfiles.h, xcoffsolib.h): Include.
	(vmap): New global variable.
	(exec_close): Close and free objects in vmap chain.
	(exec_file_command) [IBM6000_TARGET]: Set up initial vmap.
	(bfdsec_to_vmap, map_vmap): Moved here from xcoffexec.c.
	(exec_files_info): Print vmap information.
	* xcoffexec.c: Remove.
	* config/rs6000/rs6000.mt, config/rs6000/rs6000lynx.mt
	(TDEPFILES): Use exec.o instead of xcoffexec.o.
	* TODO: Remove pertinent items.

1 files changed, 0 insertions, 600 deletions

diff --git a/gdb/xcoffexec.c b/gdb/xcoffexec.c
index 35c8902..e69de29 100644
--- a/gdb/xcoffexec.c
+++ b/gdb/xcoffexec.c
@@ -1,600 +0,0 @@
-/* Execute AIXcoff files, for GDB.
-   Copyright 1988, 1989, 1991, 1992, 1994 Free Software Foundation, Inc.
-   Derived from exec.c.  Modified by IBM Corporation.
-   Donated by IBM Corporation and Cygnus Support.
-
-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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-/* xcoff-exec -	deal with executing XCOFF files.  */
-  
-#include "defs.h"
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <fcntl.h>
-#include <string.h>
-#include <ctype.h>
-#include <sys/stat.h>
-
-#include "frame.h"
-#include "inferior.h"
-#include "target.h"
-#include "gdbcmd.h"
-#include "gdbcore.h"
-#include "language.h"
-#include "symfile.h"
-#include "objfiles.h"
-
-#include "bfd.h"
-#include "xcoffsolib.h"
-
-/* Prototypes for local functions */
-
-static void
-file_command PARAMS ((char *, int));
-
-static void
-exec_close PARAMS ((int));
-
-struct vmap *
-map_vmap PARAMS ((bfd *, bfd *));
-
-struct section_table *exec_sections, *exec_sections_end;
-
-/* Whether to open exec and core files read-only or read-write.  */
-
-int write_files = 0;
-
-extern int info_verbose;
-
-bfd *exec_bfd;			/* needed by core.c	*/
-
-extern char *getenv();
-extern void add_syms_addr_command ();
-extern void symbol_file_command ();
-static void exec_files_info();
-
-struct vmap *vmap;		/* current vmap */
-
-extern struct target_ops exec_ops;
-
-/* exec_close -	done with exec file, clean up all resources. */
-
-static void
-exec_close (quitting)
-     int quitting;
-{
-  register struct vmap *vp, *nxt;
-  int need_symtab_cleanup = 0;
-  
-  for (nxt = vmap; nxt; )
-    {
-      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
-	bfd_close (vp->bfd);
-
-      /* 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?  */
-      free_named_symtabs (vp->name);
-      free (vp);
-    }
-  
-  vmap = 0;
-
-  /* exec_bfd was already closed (the exec file has a vmap entry).  */
-  exec_bfd = NULL;
-
-  if (exec_ops.to_sections)
-    {
-      /* Reflect to_sections freeing in current_target if it is
-	 the exec target. Otherwise target_xfer_memory (eventually
-	 called from clear_symtab_users) might access the freed
-	 exec_ops.to_sections via the copy in current_target.  */
-      if (current_target.to_sections == exec_ops.to_sections)
-	{
-	  current_target.to_sections = NULL;
-	  current_target.to_sections_end = NULL;
-	}
-
-      free (exec_ops.to_sections);
-      exec_ops.to_sections = NULL;
-      exec_ops.to_sections_end = NULL;
-    }
-
-  /* If we are quitting, we don't want to call breakpoint_re_set which may
-     output messages which would just be confusing in this context.  */
-  if (!quitting && need_symtab_cleanup)
-    clear_symtab_users ();
-}
-
-/*  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 (filename, from_tty)
-     char *filename;
-     int from_tty;
-{
-  target_preopen (from_tty);
-
-  /* Remove any previous exec file.  */
-  unpush_target (&exec_ops);
-
-  /* Now open and digest the file the user requested, if any. */
-
-  if (filename)
-    {
-      char *scratch_pathname;
-      int scratch_chan;
-      
-      filename = tilde_expand (filename);
-      make_cleanup (free, filename);
-      
-      scratch_chan = openp (getenv ("PATH"), 1, filename,
-			    write_files? O_RDWR: O_RDONLY, 0,
-			    &scratch_pathname);
-      if (scratch_chan < 0)
-	perror_with_name (filename);
-
-      exec_bfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan);
-      if (!exec_bfd)
-	error ("Could not open `%s' as an executable file: %s",
-	       scratch_pathname, bfd_errmsg(bfd_get_error ()));
-
-      /* make sure we have an object file */
-
-      if (!bfd_check_format (exec_bfd, bfd_object))
-	error ("\"%s\": not in executable format: %s.", scratch_pathname,
-	       bfd_errmsg (bfd_get_error ()));
-
-      /* setup initial vmap */
-
-      map_vmap (exec_bfd, 0);
-      if (!vmap)
-	error ("Can't find the file sections in `%s': %s", exec_bfd->filename,
-	       bfd_errmsg(bfd_get_error ()));
-
-      if (build_section_table (exec_bfd, &exec_ops.to_sections,
-			       &exec_ops.to_sections_end))
-	error ("Can't find the file sections in `%s': %s", exec_bfd->filename,
-	       bfd_errmsg (bfd_get_error ()));
-
-      /* make sure core, if present, matches */
-      validate_files ();
-
-      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
-    {
-      exec_close (0);		/* just in case	*/
-      if (from_tty)
-	printf_unfiltered ("No exec file now.\n");
-    }
-}
-
-/* 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);
-}
-
-/* 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;
-     char *table_pp_char;
-{
-  struct section_table **table_pp = (struct section_table **)table_pp_char;
-  flagword aflag;
-
-  aflag = bfd_get_section_flags (abfd, asect);
-  /* FIXME, we need to handle BSS segment here...it alloc's but doesn't load */
-  if (!(aflag & SEC_LOAD))
-    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)++;
-}
-
-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 (count == 0)
-    fatal ("aborting");	/* return 1? */
-  if (*start)
-    free (*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)
-    fatal ("aborting");
-  /* We could realloc the table, but it probably loses for most files.  */
-  return 0;
-}
-
-static void
-bfdsec_to_vmap(bf, sect, arg3) 
-     bfd *bf;
-     sec_ptr sect;
-     PTR arg3;
-{
-  struct vmap_and_bfd *vmap_bfd = (struct vmap_and_bfd *) arg3;
-  register struct vmap *vp;
-  vp = vmap_bfd->pvmap;
-
-  if ((bfd_get_section_flags (bf, sect) & SEC_LOAD) == 0)
-    return;
-
-  if (STREQ(bfd_section_name (bf, sect), ".text"))
-    {
-      vp->tstart = 0;
-      vp->tend = vp->tstart + bfd_section_size (bf, sect);
-
-      /* When it comes to this adjustment value, in contrast to our previous
-	 belief shared objects should behave the same as the main load segment.
-	 This is the offset from the beginning of text section to the first
-	 real instruction. */
-
-      vp->tadj = sect->filepos - bfd_section_vma (bf, sect);
-    }
-  else if (STREQ(bfd_section_name (bf, sect), ".data"))
-    {
-      vp->dstart = 0;
-      vp->dend   = vp->dstart + bfd_section_size (bf, sect);
-    }
-  else if (STREQ(bfd_section_name(bf, sect), ".bss"))	/* FIXMEmgo */
-    printf_unfiltered ("bss section in exec! Don't know what the heck to do!\n");
-}
-
-/* Make a vmap for the BFD "bf", which might be a member of the archive
-   BFD "arch".  Return the new vmap.  */
-
-struct vmap *
-map_vmap (bf, arch)
-     bfd *bf;
-     bfd *arch;
-{
-  struct vmap_and_bfd vmap_bfd;
-  struct vmap *vp, **vpp;
-
-  vp = (PTR) xmalloc (sizeof (*vp));
-  memset (vp, '\0', sizeof (*vp));
-  vp->nxt = 0;
-  vp->bfd = bf;
-  vp->name = bfd_get_filename (arch ? arch : bf);
-  vp->member = arch ? bfd_get_filename (bf) : "";
-  
-  vmap_bfd.pbfd = arch;
-  vmap_bfd.pvmap = vp;
-  bfd_map_over_sections (bf, 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 exec 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));
-
-  if (len <= 0)
-    fatal ("aborting");
-
-  memend = memaddr + len;
-  xfer_fn = write? bfd_set_section_contents: bfd_get_section_contents;
-  nextsectaddr = memend;
-
-  for (p = target->to_sections; p < target->to_sections_end; p++)
-    {
-      if (p->addr <= memaddr)
-	if (p->endaddr >= memend)
-	  {
-	    /* 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 (p->endaddr <= memaddr)
-	  {
-	    /* 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 if (p->addr < nextsectaddr)
-	nextsectaddr = p->addr;
-    }
-
-  if (nextsectaddr >= memend)
-    return 0;				/* We can't help */
-  else
-    return - (nextsectaddr - memaddr);	/* Next boundary where we can help */
-}
-
-void
-print_section_info (t, abfd)
-  struct target_ops *t;
-  bfd *abfd;
-{
-  struct section_table *p;
-
-  /* FIXME-32x64: Need a version of print_address_numeric with field width.  */
-  printf_filtered ("\t`%s', ", bfd_get_filename(abfd));
-  wrap_here ("        ");
-  printf_filtered ("file type %s.\n", bfd_get_target(abfd));
-
-  for (p = t->to_sections; p < t->to_sections_end; p++) {
-    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;
-{
-  register struct vmap *vp = vmap;
-
-  print_section_info (t, exec_bfd);
-
-  if (!vp)
-    return;
-
-  printf_unfiltered ("\tMapping info for file `%s'.\n", vp->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; 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 ? ")" : "");
-}
-
-#ifdef DAMON
-/*  Damon's implementation of set_section_command! It is based on the sex member
-  (which is a section pointer from vmap) of vmap.
-  We will not have multiple vmap entries (one for each section), rather transmit
-  text and data base offsets and fix them at the same time. Elimination of sex
-  entry in vmap make this function obsolute, use the one from exec.c. 
-  Need further testing!!	FIXMEmgo.  */
-
-static void
-set_section_command(args, from_tty)
-char *args; 
-{
-	register struct vmap *vp = vmap;
-	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 (vp = vmap; vp; vp = vp->nxt) {
-		if (!strncmp(secname
-			     , bfd_section_name(vp->bfd, vp->sex), seclen)
-		    && bfd_section_name(vp->bfd, vp->sex)[seclen] == '\0') {
-			offset = secaddr - vp->tstart;
-			vp->tstart += offset;
-			vp->tend   += offset;
-			exec_files_info();
-			return;
-		}
-	} 
-
-	if (seclen >= sizeof(secprint))
-		seclen = sizeof(secprint) - 1;
-	strncpy(secprint, secname, seclen);
-	secprint[seclen] = '\0';
-	error("Section %s not found", secprint);
-}
-#else
-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);
-}
-
-#endif /* !DAMON */
-
-struct target_ops exec_ops = {
-	"exec", "Local exec file",
-	"Use an executable file as a target.\n\
-Specify the filename of the executable file.",
-	exec_file_command, exec_close, /* open, close */
-	find_default_attach, 0, 0, 0, /* attach, detach, resume, wait, */
-	0, 0, /* fetch_registers, store_registers, */
-	0, /* prepare_to_store */
-	xfer_memory, exec_files_info,
-	0, 0, /* insert_breakpoint, remove_breakpoint, */
-	0, 0, 0, 0, 0, /* terminal stuff */
-	0, 0, /* kill, load */
-	0, /* lookup sym */
-	find_default_create_inferior,
-	0, /* mourn_inferior */
-	0, /* can_run */
-	0, /* notice_signals */
-	file_stratum, 0, /* next */
-	0, 1, 0, 0, 0,	/* all mem, mem, stack, regs, exec */
-	0, 0,			/* section pointers */
-	OPS_MAGIC,		/* Always the last thing */
-};
-
-void
-_initialize_exec()
-{
-
-  add_com("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.");
-
-  add_com("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.");
-
-  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_target(&exec_ops);
-}