* pa64solib.c, pa64solib.h: Remove files.

* Makefile.in (pa64solib_h): Remove variable
(pa64solib.o): Remove dependency.

1 files changed, 0 insertions, 1248 deletions

diff --git a/gdb/pa64solib.c b/gdb/pa64solib.c
deleted file mode 100644
index f0589e7..0000000
--- a/gdb/pa64solib.c
+++ /dev/null
@@ -1,1248 +0,0 @@
-/* Handle HP ELF shared libraries for GDB, the GNU Debugger.
-
-   Copyright 1999, 2000, 2001, 2002, 2003, 2004 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.
-
-   HP in their infinite stupidity choose not to use standard ELF dynamic
-   linker interfaces.  They also choose not to make their ELF dymamic
-   linker interfaces compatible with the SOM dynamic linker.  The
-   net result is we can not use either of the existing somsolib.c or
-   solib.c.  What a crock.
-
-   Even more disgusting.  This file depends on functions provided only
-   in certain PA64 libraries.  Thus this file is supposed to only be
-   used native.  When will HP ever learn that they need to provide the
-   same functionality in all their libraries!  */
-
-#include <dlfcn.h>
-#include <elf.h>
-#include <elf_hp.h>
-
-#include "defs.h"
-
-#include "frame.h"
-#include "bfd.h"
-#include "libhppa.h"
-#include "gdbcore.h"
-#include "symtab.h"
-#include "breakpoint.h"
-#include "symfile.h"
-#include "objfiles.h"
-#include "inferior.h"
-#include "gdb-stabs.h"
-#include "gdb_stat.h"
-#include "gdbcmd.h"
-#include "language.h"
-#include "regcache.h"
-#include "exec.h"
-#include "hppa-tdep.h"
-
-#include <fcntl.h>
-
-#ifndef O_BINARY
-#define O_BINARY 0
-#endif
-
-static CORE_ADDR bfd_lookup_symbol (bfd *, char *);
-/* This lives in hppa-tdep.c. */
-extern struct unwind_table_entry *find_unwind_entry (CORE_ADDR pc);
-
-/* These ought to be defined in some public interface, but aren't.  They
-   identify dynamic linker events.  */
-#define DLD_CB_LOAD     1
-#define DLD_CB_UNLOAD   0
-
-/* A structure to keep track of all the known shared objects.  */
-struct so_list
-  {
-    bfd *abfd;
-    char *name;
-    struct so_list *next;
-    struct objfile *objfile;
-    CORE_ADDR pa64_solib_desc_addr;
-    struct load_module_desc pa64_solib_desc;
-    struct section_table *sections;
-    struct section_table *sections_end;
-    int loaded;
-  };
-
-static struct so_list *so_list_head;
-
-/* This is the cumulative size in bytes of the symbol tables of all
-   shared objects on the so_list_head list.  (When we say size, here
-   we mean of the information before it is brought into memory and
-   potentially expanded by GDB.)  When adding a new shlib, this value
-   is compared against a threshold size, held by auto_solib_limit (in
-   megabytes).  If adding symbols for the new shlib would cause the
-   total size to exceed the threshold, then the new shlib's symbols
-   are not loaded. */
-static LONGEST pa64_solib_total_st_size;
-
-/* When the threshold is reached for any shlib, we refuse to add
-   symbols for subsequent shlibs, even if those shlibs' symbols would
-   be small enough to fit under the threshold.  Although this may
-   result in one, early large shlib preventing the loading of later,
-   smaller shlibs' symbols, it allows us to issue one informational
-   message.  The alternative, to issue a message for each shlib whose
-   symbols aren't loaded, could be a big annoyance where the threshold
-   is exceeded due to a very large number of shlibs. */
-static int pa64_solib_st_size_threshold_exceeded;
-
-/* When adding fields, be sure to clear them in _initialize_pa64_solib. */
-typedef struct
-  {
-    CORE_ADDR dld_flags_addr;
-    LONGEST dld_flags;
-    struct bfd_section *dyninfo_sect;
-    int have_read_dld_descriptor;
-    int is_valid;
-    CORE_ADDR load_map;
-    CORE_ADDR load_map_addr;
-    struct load_module_desc dld_desc;
-  }
-dld_cache_t;
-
-static dld_cache_t dld_cache;
-
-static void pa64_sharedlibrary_info_command (char *, int);
-
-static void pa64_solib_sharedlibrary_command (char *, int);
-
-static void *pa64_target_read_memory (void *, CORE_ADDR, size_t, int);
-
-static int read_dld_descriptor (struct target_ops *, int readsyms);
-
-static int read_dynamic_info (asection *, dld_cache_t *);
-
-static void add_to_solist (int, char *, int, struct load_module_desc *,
-			   CORE_ADDR, struct target_ops *);
-
-/* When examining the shared library for debugging information we have to
-   look for HP debug symbols, stabs and dwarf2 debug symbols.  */
-static char *pa64_debug_section_names[] = {
-  ".debug_header", ".debug_gntt", ".debug_lntt", ".debug_slt", ".debug_vt",
-  ".stabs", ".stabstr", ".debug_info", ".debug_abbrev", ".debug_aranges",
-  ".debug_macinfo", ".debug_line", ".debug_loc", ".debug_pubnames",
-  ".debug_str", NULL
-};
-
-/* Return a ballbark figure for the amount of memory GDB will need to
-   allocate to read in the debug symbols from FILENAME.  */
-static LONGEST
-pa64_solib_sizeof_symbol_table (char *filename)
-{
-  bfd *abfd;
-  int i;
-  int desc;
-  char *absolute_name;
-  LONGEST st_size = (LONGEST) 0;
-  asection *sect;
-
-  /* We believe that filename was handed to us by the dynamic linker, and
-     is therefore always an absolute path.  */
-  desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename,
-		O_RDONLY | O_BINARY, 0, &absolute_name);
-  if (desc < 0)
-    {
-      perror_with_name (filename);
-    }
-  filename = absolute_name;
-
-  abfd = bfd_fdopenr (filename, gnutarget, desc);
-  if (!abfd)
-    {
-      close (desc);
-      make_cleanup (xfree, filename);
-      error (_("\"%s\": can't open to read symbols: %s."), filename,
-	     bfd_errmsg (bfd_get_error ()));
-    }
-
-  if (!bfd_check_format (abfd, bfd_object))
-    {
-      bfd_close (abfd);
-      make_cleanup (xfree, filename);
-      error (_("\"%s\": can't read symbols: %s."), filename,
-	     bfd_errmsg (bfd_get_error ()));
-    }
-
-  /* Sum the sizes of the various sections that compose debug info. */
-  for (i = 0; pa64_debug_section_names[i] != NULL; i++)
-    {
-      asection *sect;
-
-      sect = bfd_get_section_by_name (abfd, pa64_debug_section_names[i]);
-      if (sect)
-	st_size += (LONGEST)bfd_section_size (abfd, sect);
-    }
-
-  bfd_close (abfd);
-  xfree (filename);
-
-  /* Unfortunately, just summing the sizes of various debug info
-     sections isn't a very accurate measurement of how much heap
-     space the debugger will need to hold them.  It also doesn't
-     account for space needed by linker (aka "minimal") symbols.
-
-     Anecdotal evidence suggests that just summing the sizes of
-     debug-info-related sections understates the heap space needed
-     to represent it internally by about an order of magnitude.
-
-     Since it's not exactly brain surgery we're doing here, rather
-     than attempt to more accurately measure the size of a shlib's
-     symbol table in GDB's heap, we'll just apply a 10x fudge-
-     factor to the debug info sections' size-sum.  No, this doesn't
-     account for minimal symbols in non-debuggable shlibs.  But it
-     all roughly washes out in the end.  */
-  return st_size * (LONGEST) 10;
-}
-
-/* Add a shared library to the objfile list and load its symbols into
-   GDB's symbol table.  */
-static void
-pa64_solib_add_solib_objfile (struct so_list *so, char *name, int from_tty,
-			      CORE_ADDR text_addr)
-{
-  bfd *tmp_bfd;
-  asection *sec;
-  struct hppa_objfile_private *obj_private;
-  struct section_addr_info *section_addrs;
-  struct cleanup *my_cleanups;
-
-  /* We need the BFD so that we can look at its sections.  We open up the
-     file temporarily, then close it when we are done.  */
-  tmp_bfd = bfd_openr (name, gnutarget);
-  if (tmp_bfd == NULL)
-    {
-      perror_with_name (name);
-      return;
-    }
-
-  if (!bfd_check_format (tmp_bfd, bfd_object))
-    {
-      bfd_close (tmp_bfd);
-      error (_("\"%s\" is not an object file: %s"), name,
-	     bfd_errmsg (bfd_get_error ()));
-    }
-
-
-  /* Undo some braindamage from symfile.c.
-
-     First, symfile.c will subtract the VMA of the first .text section
-     in the shared library that it finds.  Undo that.  */
-  sec = bfd_get_section_by_name (tmp_bfd, ".text");
-  text_addr += bfd_section_vma (tmp_bfd, sec);
-
-  /* Now find the true lowest section in the shared library.  */
-  sec = NULL;
-  bfd_map_over_sections (tmp_bfd, find_lowest_section, &sec);
-
-  if (sec)
-    {
-      /* Subtract out the VMA of the lowest section.  */
-      text_addr -= bfd_section_vma (tmp_bfd, sec);
-
-      /* ??? Add back in the filepos of that lowest section. */
-      text_addr += sec->filepos;
-    }
-
-  section_addrs = alloc_section_addr_info (bfd_count_sections (tmp_bfd));
-  my_cleanups = make_cleanup (xfree, section_addrs);
-
-  /* We are done with the temporary bfd.  Get rid of it and make sure
-     nobody else can us it.  */
-  bfd_close (tmp_bfd);
-  tmp_bfd = NULL;
-
-  /* Now let the generic code load up symbols for this library.  */
-  section_addrs->other[0].addr = text_addr;
-  section_addrs->other[0].name = ".text";
-  so->objfile = symbol_file_add (name, from_tty, section_addrs, 0, OBJF_SHARED);
-  so->abfd = so->objfile->obfd;
-
-  /* Mark this as a shared library and save private data.  */
-  so->objfile->flags |= OBJF_SHARED;
-
-  obj_private = (struct hppa_objfile_private *)
-	        objfile_data (so->objfile, hppa_objfile_priv_data);
-  if (obj_private == NULL)
-    {
-      obj_private = (struct hppa_objfile_private *)
-	obstack_alloc (&so->objfile->objfile_obstack,
-		       sizeof (struct hppa_objfile_private));
-      set_objfile_data (so->objfile, hppa_objfile_priv_data, obj_private);
-      obj_private->unwind_info = NULL;
-      obj_private->so_info = NULL;
-    }
-
-  obj_private->so_info = so;
-  obj_private->dp = so->pa64_solib_desc.linkage_ptr;
-  do_cleanups (my_cleanups);
-}
-
-/* Load debugging information for a shared library.  TARGET may be
-   NULL if we are not attaching to a process or reading a core file.  */
-
-static void
-pa64_solib_load_symbols (struct so_list *so, char *name, int from_tty,
-			 CORE_ADDR text_addr, struct target_ops *target)
-{
-  struct section_table *p;
-  asection *sec;
-  int status;
-  char buf[4];
-  CORE_ADDR presumed_data_start;
-
-  if (text_addr == 0)
-    text_addr = so->pa64_solib_desc.text_base;
-
-  pa64_solib_add_solib_objfile (so, name, from_tty, text_addr);
-
-  /* Now we need to build a section table for this library since
-     we might be debugging a core file from a dynamically linked
-     executable in which the libraries were not privately mapped.  */
-  if (build_section_table (so->abfd,
-			   &so->sections,
-			   &so->sections_end))
-    {
-      error (_("Unable to build section table for shared library\n."));
-      return;
-    }
-
-  (so->objfile->section_offsets)->offsets[SECT_OFF_TEXT (so->objfile)]
-    = so->pa64_solib_desc.text_base;
-  (so->objfile->section_offsets)->offsets[SECT_OFF_DATA (so->objfile)]
-    = so->pa64_solib_desc.data_base;
-
-  /* Relocate all the sections based on where they got loaded.  */
-  for (p = so->sections; p < so->sections_end; p++)
-    {
-      if (p->the_bfd_section->flags & SEC_CODE)
-	{
-	  p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT (so->objfile));
-	  p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_TEXT (so->objfile));
-	}
-      else if (p->the_bfd_section->flags & SEC_DATA)
-	{
-	  p->addr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA (so->objfile));
-	  p->endaddr += ANOFFSET (so->objfile->section_offsets, SECT_OFF_DATA (so->objfile));
-	}
-    }
-
-  /* Now see if we need to map in the text and data for this shared
-     library (for example debugging a core file which does not use
-     private shared libraries.). 
-
-     Carefully peek at the first text address in the library.  If the
-     read succeeds, then the libraries were privately mapped and were
-     included in the core dump file.
-
-     If the peek failed, then the libraries were not privately mapped
-     and are not in the core file, we'll have to read them in ourselves.  */
-  status = target_read_memory (text_addr, buf, 4);
-  if (status != 0)
-    {
-      int new, old;
-      
-      new = so->sections_end - so->sections;
-
-      old = target_resize_to_sections (target, new);
-      
-      /* Copy over the old data before it gets clobbered.  */
-      memcpy ((char *) (target->to_sections + old),
-	      so->sections,
-	      ((sizeof (struct section_table)) * new));
-    }
-}
-
-
-/* Add symbols from shared libraries into the symtab list, unless the
-   size threshold specified by auto_solib_limit (in megabytes) would
-   be exceeded.  */
-
-void
-pa64_solib_add (char *arg_string, int from_tty, struct target_ops *target, int readsyms)
-{
-  struct minimal_symbol *msymbol;
-  CORE_ADDR addr;
-  asection *shlib_info;
-  int status;
-  unsigned int dld_flags;
-  char buf[4], *re_err;
-  int threshold_warning_given = 0;
-  int dll_index;
-  struct load_module_desc dll_desc;
-  char *dll_path;
-
-  /* First validate our arguments.  */
-  if ((re_err = re_comp (arg_string ? arg_string : ".")) != NULL)
-    {
-      error (_("Invalid regexp: %s"), re_err);
-    }
-
-  /* If we're debugging a core file, or have attached to a running
-     process, then pa64_solib_create_inferior_hook will not have been
-     called.
-
-     We need to first determine if we're dealing with a dynamically
-     linked executable.  If not, then return without an error or warning.
-
-     We also need to examine __dld_flags to determine if the shared
-     library list is valid and to determine if the libraries have been
-     privately mapped.  */
-  if (symfile_objfile == NULL)
-    return;
-
-  /* First see if the objfile was dynamically linked.  */
-  shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, ".dynamic");
-  if (!shlib_info)
-    return;
-
-  /* It's got a .dynamic section, make sure it's not empty.  */
-  if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0)
-    return;
-
-  /* Read in the load map pointer if we have not done so already.  */
-  if (! dld_cache.have_read_dld_descriptor)
-    if (! read_dld_descriptor (target, readsyms))
-      return;
-
-  /* If the libraries were not mapped private, warn the user.  */
-  if ((dld_cache.dld_flags & DT_HP_DEBUG_PRIVATE) == 0)
-    warning (_("\
-The shared libraries were not privately mapped; setting a\n\
-breakpoint in a shared library will not work until you rerun the program."));
-
-  /* For each shaerd library, add it to the shared library list.  */
-  for (dll_index = 1; ; dll_index++)
-    {
-      /* Read in the load module descriptor.  */
-      if (dlgetmodinfo (dll_index, &dll_desc, sizeof (dll_desc),
-			pa64_target_read_memory, 0, dld_cache.load_map)
-	  == 0)
-	return;
-
-      /* Get the name of the shared library.  */
-      dll_path = (char *)dlgetname (&dll_desc, sizeof (dll_desc),
-			    pa64_target_read_memory,
-			    0, dld_cache.load_map);
-
-      if (!dll_path)
-	error (_("pa64_solib_add, unable to read shared library path."));
-
-      add_to_solist (from_tty, dll_path, readsyms, &dll_desc, 0, target);
-    }
-}
-
-
-/* This hook gets called just before the first instruction in the
-   inferior process is executed.
-
-   This is our opportunity to set magic flags in the inferior so
-   that GDB can be notified when a shared library is mapped in and
-   to tell the dynamic linker that a private copy of the library is
-   needed (so GDB can set breakpoints in the library).
-
-   We need to set two flag bits in this routine.
-
-     DT_HP_DEBUG_PRIVATE to indicate that shared libraries should be
-     mapped private.
-
-     DT_HP_DEBUG_CALLBACK to indicate that we want the dynamic linker
-     to call the breakpoint routine for significant events.  */
-
-void
-pa64_solib_create_inferior_hook (void)
-{
-  struct minimal_symbol *msymbol;
-  unsigned int dld_flags, status;
-  asection *shlib_info, *interp_sect;
-  char buf[4];
-  struct objfile *objfile;
-  CORE_ADDR anaddr;
-
-  /* First, remove all the solib event breakpoints.  Their addresses
-     may have changed since the last time we ran the program.  */
-  remove_solib_event_breakpoints ();
-
-  if (symfile_objfile == NULL)
-    return;
-
-  /* First see if the objfile was dynamically linked.  */
-  shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, ".dynamic");
-  if (!shlib_info)
-    return;
-
-  /* It's got a .dynamic section, make sure it's not empty.  */
-  if (bfd_section_size (symfile_objfile->obfd, shlib_info) == 0)
-    return;
-
-  /* Read in the .dynamic section.  */
-  if (! read_dynamic_info (shlib_info, &dld_cache))
-    error (_("Unable to read the .dynamic section."));
-
-  /* Turn on the flags we care about.  */
-  dld_cache.dld_flags |= DT_HP_DEBUG_PRIVATE;
-  dld_cache.dld_flags |= DT_HP_DEBUG_CALLBACK;
-  status = target_write_memory (dld_cache.dld_flags_addr,
-				(char *) &dld_cache.dld_flags,
-				sizeof (dld_cache.dld_flags));
-  if (status != 0)
-    error (_("Unable to modify dynamic linker flags."));
-
-  /* Now we have to create a shared library breakpoint in the dynamic
-     linker.  This can be somewhat tricky since the symbol is inside
-     the dynamic linker (for which we do not have symbols or a base
-     load address!   Luckily I wrote this code for solib.c years ago.  */
-  interp_sect = bfd_get_section_by_name (exec_bfd, ".interp");
-  if (interp_sect)
-    {
-      unsigned int interp_sect_size;
-      char *buf;
-      CORE_ADDR load_addr;
-      bfd *tmp_bfd;
-      CORE_ADDR sym_addr = 0;
-
-      /* Read the contents of the .interp section into a local buffer;
-	 the contents specify the dynamic linker this program uses.  */
-      interp_sect_size = bfd_section_size (exec_bfd, interp_sect);
-      buf = alloca (interp_sect_size);
-      bfd_get_section_contents (exec_bfd, interp_sect,
-				buf, 0, interp_sect_size);
-
-      /* Now we need to figure out where the dynamic linker was
-	 loaded so that we can load its symbols and place a breakpoint
-	 in the dynamic linker itself.
-
-	 This address is stored on the stack.  However, I've been unable
-	 to find any magic formula to find it for Solaris (appears to
-	 be trivial on GNU/Linux).  Therefore, we have to try an alternate
-	 mechanism to find the dynamic linker's base address.  */
-      tmp_bfd = bfd_openr (buf, gnutarget);
-      if (tmp_bfd == NULL)
-	goto get_out;
-
-      /* Make sure the dynamic linker's really a useful object.  */
-      if (!bfd_check_format (tmp_bfd, bfd_object))
-	{
-	  warning (_("Unable to grok dynamic linker %s as an object file"), buf);
-	  bfd_close (tmp_bfd);
-	  goto get_out;
-	}
-
-      /* We find the dynamic linker's base address by examining the
-	 current pc (which point at the entry point for the dynamic
-	 linker) and subtracting the offset of the entry point. 
-
-	 Also note the breakpoint is the second instruction in the
-	 routine.  */
-      load_addr = read_pc () - tmp_bfd->start_address;
-      sym_addr = bfd_lookup_symbol (tmp_bfd, "__dld_break");
-      sym_addr = load_addr + sym_addr + 4;
-      
-      /* Create the shared library breakpoint.  */
-      {
-	struct breakpoint *b
-	  = create_solib_event_breakpoint (sym_addr);
-
-	/* The breakpoint is actually hard-coded into the dynamic linker,
-	   so we don't need to actually insert a breakpoint instruction
-	   there.  In fact, the dynamic linker's code is immutable, even to
-	   ttrace, so we shouldn't even try to do that.  For cases like
-	   this, we have "permanent" breakpoints.  */
-	make_breakpoint_permanent (b);
-      }
-
-      /* We're done with the temporary bfd.  */
-      bfd_close (tmp_bfd);
-    }
-
-get_out:
-  /* Wipe out all knowledge of old shared libraries since their
-     mapping can change from one exec to another!  */
-  while (so_list_head)
-    {
-      struct so_list *temp;
-
-      temp = so_list_head;
-      xfree (so_list_head);
-      so_list_head = temp->next;
-    }
-  clear_symtab_users ();
-}
-
-/* This operation removes the "hook" between GDB and the dynamic linker,
-   which causes the dld to notify GDB of shared library events.
-
-   After this operation completes, the dld will no longer notify GDB of
-   shared library events.  To resume notifications, GDB must call
-   pa64_solib_create_inferior_hook.
-
-   This operation does not remove any knowledge of shared libraries
-   of which GDB may already have been notified.  */
-
-void
-pa64_solib_remove_inferior_hook (int pid)
-{
-  /* Turn off the DT_HP_DEBUG_CALLBACK bit in the dynamic linker flags.  */
-  dld_cache.dld_flags &= ~DT_HP_DEBUG_CALLBACK;
-  target_write_memory (dld_cache.dld_flags_addr,
-		       (char *)&dld_cache.dld_flags,
-		       sizeof (dld_cache.dld_flags));
-}
-
-/* This function creates a breakpoint on the dynamic linker hook, which
-   is called when e.g., a shl_load or shl_unload call is made.  This
-   breakpoint will only trigger when a shl_load call is made.
-
-   If filename is NULL, then loads of any dll will be caught.  Else,
-   only loads of the file whose pathname is the string contained by
-   filename will be caught.
-
-   Undefined behaviour is guaranteed if this function is called before
-   pa64_solib_create_inferior_hook.  */
-
-void
-pa64_solib_create_catch_load_hook (int pid, int tempflag, char *filename,
-				   char *cond_string)
-{
-  create_solib_load_event_breakpoint ("", tempflag, filename, cond_string);
-}
-
-/* This function creates a breakpoint on the dynamic linker hook, which
-   is called when e.g., a shl_load or shl_unload call is made.  This
-   breakpoint will only trigger when a shl_unload call is made.
-
-   If filename is NULL, then unloads of any dll will be caught.  Else,
-   only unloads of the file whose pathname is the string contained by
-   filename will be caught.
-
-   Undefined behaviour is guaranteed if this function is called before
-   pa64_solib_create_inferior_hook.  */
-
-void
-pa64_solib_create_catch_unload_hook (int pid, int tempflag, char *filename,
-				     char *cond_string)
-{
-  create_solib_unload_event_breakpoint ("", tempflag, filename, cond_string);
-}
-
-/* Return nonzero if the dynamic linker has reproted that a library
-   has been loaded.  */
-
-int
-pa64_solib_have_load_event (int pid)
-{
-  CORE_ADDR event_kind;
-
-  event_kind = read_register (HPPA_ARG0_REGNUM);
-  return (event_kind == DLD_CB_LOAD);
-}
-
-/* Return nonzero if the dynamic linker has reproted that a library
-   has been unloaded.  */
-int
-pa64_solib_have_unload_event (int pid)
-{
-  CORE_ADDR event_kind;
-
-  event_kind = read_register (HPPA_ARG0_REGNUM);
-  return (event_kind == DLD_CB_UNLOAD);
-}
-
-/* Return a pointer to a string indicating the pathname of the most
-   recently loaded library.
-
-   The caller is reposible for copying the string before the inferior is
-   restarted.  */
-
-char *
-pa64_solib_loaded_library_pathname (int pid)
-{
-  static char dll_path[MAXPATHLEN];
-  CORE_ADDR  dll_path_addr = read_register (HPPA_ARG3_REGNUM);
-  read_memory_string (dll_path_addr, dll_path, MAXPATHLEN);
-  return dll_path;
-}
-
-/* Return a pointer to a string indicating the pathname of the most
-   recently unloaded library.
-
-   The caller is reposible for copying the string before the inferior is
-   restarted.  */
-
-char *
-pa64_solib_unloaded_library_pathname (int pid)
-{
-  static char dll_path[MAXPATHLEN];
-  CORE_ADDR dll_path_addr = read_register (HPPA_ARG3_REGNUM);
-  read_memory_string (dll_path_addr, dll_path, MAXPATHLEN);
-  return dll_path;
-}
-
-/* Return nonzero if PC is an address inside the dynamic linker.  */
-
-int
-pa64_solib_in_dynamic_linker (int pid, CORE_ADDR pc)
-{
-  asection *shlib_info;
-
-  if (symfile_objfile == NULL)
-    return 0;
-
-  if (!dld_cache.have_read_dld_descriptor)
-    if (!read_dld_descriptor (&current_target, auto_solib_add))
-      return 0;
-
-  return (pc >= dld_cache.dld_desc.text_base
-	  && pc < dld_cache.dld_desc.text_base + dld_cache.dld_desc.text_size);
-}
-
-
-/* Return the GOT value for the shared library in which ADDR belongs.  If
-   ADDR isn't in any known shared library, return zero.  */
-
-CORE_ADDR
-pa64_solib_get_got_by_pc (CORE_ADDR addr)
-{
-  struct so_list *so_list = so_list_head;
-  CORE_ADDR got_value = 0;
-
-  while (so_list)
-    {
-      if (so_list->pa64_solib_desc.text_base <= addr
-	  && ((so_list->pa64_solib_desc.text_base
-	       + so_list->pa64_solib_desc.text_size)
-	      > addr))
-	{
-	  got_value = so_list->pa64_solib_desc.linkage_ptr;
-	  break;
-	}
-      so_list = so_list->next;
-    }
-  return got_value;
-}
-
-/* Return the address of the handle of the shared library in which ADDR
-   belongs.  If ADDR isn't in any known shared library, return zero. 
-
-   This function is used in hppa_fix_call_dummy in hppa-tdep.c.  */
-
-CORE_ADDR
-pa64_solib_get_solib_by_pc (CORE_ADDR addr)
-{
-  struct so_list *so_list = so_list_head;
-  CORE_ADDR retval = 0;
-
-  while (so_list)
-    {
-      if (so_list->pa64_solib_desc.text_base <= addr
-	  && ((so_list->pa64_solib_desc.text_base
-	       + so_list->pa64_solib_desc.text_size)
-	      > addr))
-	{
-	  retval = so_list->pa64_solib_desc_addr;
-	  break;
-	}
-      so_list = so_list->next;
-    }
-  return retval;
-}
-
-/* Dump information about all the currently loaded shared libraries.  */
-
-static void
-pa64_sharedlibrary_info_command (char *ignore, int from_tty)
-{
-  struct so_list *so_list = so_list_head;
-
-  if (exec_bfd == NULL)
-    {
-      printf_unfiltered ("No executable file.\n");
-      return;
-    }
-
-  if (so_list == NULL)
-    {
-      printf_unfiltered ("No shared libraries loaded at this time.\n");
-      return;
-    }
-
-  printf_unfiltered ("Shared Object Libraries\n");
-  printf_unfiltered ("   %-19s%-19s%-19s%-19s\n",
-		     "  text start", "   text end",
-		     "  data start", "   data end");
-  while (so_list)
-    {
-      unsigned int flags;
-
-      printf_unfiltered ("%s", so_list->name);
-      if (so_list->objfile == NULL)
-	printf_unfiltered ("  (symbols not loaded)");
-      if (so_list->loaded == 0)
-	printf_unfiltered ("  (shared library unloaded)");
-      printf_unfiltered ("  %-18s",
-	hex_string_custom (so_list->pa64_solib_desc.linkage_ptr, 16));
-      printf_unfiltered ("\n");
-      printf_unfiltered ("%-18s",
-	hex_string_custom (so_list->pa64_solib_desc.text_base, 16));
-      printf_unfiltered (" %-18s",
-	hex_string_custom ((so_list->pa64_solib_desc.text_base
-			    + so_list->pa64_solib_desc.text_size), 16));
-      printf_unfiltered (" %-18s",
-	hex_string_custom (so_list->pa64_solib_desc.data_base, 16));
-      printf_unfiltered (" %-18s\n",
-	hex_string_custom ((so_list->pa64_solib_desc.data_base
-			    + so_list->pa64_solib_desc.data_size), 16));
-      so_list = so_list->next;
-    }
-}
-
-/* Load up one or more shared libraries as directed by the user.  */
-
-static void
-pa64_solib_sharedlibrary_command (char *args, int from_tty)
-{
-  dont_repeat ();
-  pa64_solib_add (args, from_tty, (struct target_ops *) 0, 1);
-}
-
-/* Return the name of the shared library containing ADDR or NULL if ADDR
-   is not contained in any known shared library.  */
-
-char *
-pa64_solib_address (CORE_ADDR addr)
-{
-  struct so_list *so = so_list_head;
-
-  while (so)
-    {
-      /* Is this address within this shlib's text range?  If so,
-	 return the shlib's name.  */
-      if (addr >= so->pa64_solib_desc.text_base
-	  && addr < (so->pa64_solib_desc.text_base
-		     | so->pa64_solib_desc.text_size))
-	return so->name;
-
-      /* Nope, keep looking... */
-      so = so->next;
-    }
-
-  /* No, we couldn't prove that the address is within a shlib. */
-  return NULL;
-}
-
-/* We are killing the inferior and restarting the program.  */
-
-void
-pa64_solib_restart (void)
-{
-  struct so_list *sl = so_list_head;
-
-  /* Before the shlib info vanishes, use it to disable any breakpoints
-     that may still be active in those shlibs.  */
-  disable_breakpoints_in_shlibs (0);
-
-  /* Discard all the shlib descriptors.  */
-  while (sl)
-    {
-      struct so_list *next_sl = sl->next;
-      xfree (sl);
-      sl = next_sl;
-    }
-  so_list_head = NULL;
-
-  pa64_solib_total_st_size = (LONGEST) 0;
-  pa64_solib_st_size_threshold_exceeded = 0;
-
-  dld_cache.is_valid = 0;
-  dld_cache.have_read_dld_descriptor = 0;
-  dld_cache.dld_flags_addr = 0;
-  dld_cache.load_map = 0;
-  dld_cache.load_map_addr = 0;
-  dld_cache.dld_desc.data_base = 0;
-  dld_cache.dld_flags = 0;
-  dld_cache.dyninfo_sect = 0;
-}
-
-void
-_initialize_pa64_solib (void)
-{
-  add_com ("sharedlibrary", class_files, pa64_solib_sharedlibrary_command,
-	   _("Load shared object library symbols for files matching REGEXP."));
-  add_info ("sharedlibrary", pa64_sharedlibrary_info_command,
-	    _("Status of loaded shared object libraries."));
-
-  add_setshow_boolean_cmd ("auto-solib-add", class_support,
-			   &auto_solib_add, _("\
-Set autoloading of shared library symbols."), _("\
-Show autoloading of shared library symbols."), _("\
-If \"on\", symbols from all shared object libraries will be loaded\n\
-automatically when the inferior begins execution, when the dynamic linker\n\
-informs gdb that a new library has been loaded, or when attaching to the\n\
-inferior.  Otherwise, symbols must be loaded manually, using `sharedlibrary'."),
-			   NULL,
-			   NULL, /* FIXME: i18n: */
-			   &setlist, &showlist);
-
-  add_setshow_zinteger_cmd ("auto-solib-limit", class_support,
-			    &auto_solib_limit, _("\
-Set threshold (in Mb) for autoloading shared library symbols."), _("\
-Show threshold (in Mb) for autoloading shared library symbols."), _("\
-When shared library autoloading is enabled, new libraries will be loaded\n\
-only until the total size of shared library symbols exceeds this\n\
-threshold in megabytes.  Is ignored when using `sharedlibrary'."),
-			    NULL,
-			    NULL, /* FIXME: i18n: */
-			    &setlist, &showlist);
-
-  /* ??rehrauer: On HP-UX, the kernel parameter MAXDSIZ limits how
-     much data space a process can use.  We ought to be reading
-     MAXDSIZ and setting auto_solib_limit to some large fraction of
-     that value.  If not that, we maybe ought to be setting it smaller
-     than the default for MAXDSIZ (that being 64Mb, I believe).
-     However, [1] this threshold is only crudely approximated rather
-     than actually measured, and [2] 50 Mbytes is too small for
-     debugging gdb itself.  Thus, the arbitrary 100 figure.  */
-  auto_solib_limit = 100;	/* Megabytes */
-
-  pa64_solib_restart ();
-}
-
-/* Get some HPUX-specific data from a shared lib.  */
-CORE_ADDR
-pa64_solib_thread_start_addr (struct so_list *so)
-{
-  return so->pa64_solib_desc.tls_start_addr;
-}
-
-/* Read the dynamic linker's internal shared library descriptor.
-
-   This must happen after dld starts running, so we can't do it in
-   read_dynamic_info.  Record the fact that we have loaded the
-   descriptor.  If the library is archive bound, then return zero, else
-   return nonzero.  */
-
-static int
-read_dld_descriptor (struct target_ops *target, int readsyms)
-{
-  char *dll_path;
-  asection *dyninfo_sect;
-
-  /* If necessary call read_dynamic_info to extract the contents of the
-     .dynamic section from the shared library.  */
-  if (!dld_cache.is_valid) 
-    {
-      if (symfile_objfile == NULL)
-	error (_("No object file symbols."));
-
-      dyninfo_sect = bfd_get_section_by_name (symfile_objfile->obfd, 
-					      ".dynamic");
-      if (!dyninfo_sect) 
-	{
-	  return 0;
-	}
-
-      if (!read_dynamic_info (dyninfo_sect, &dld_cache))
-	error (_("Unable to read in .dynamic section information."));
-    }
-
-  /* Read the load map pointer.  */
-  if (target_read_memory (dld_cache.load_map_addr,
-			  (char*) &dld_cache.load_map,
-			  sizeof(dld_cache.load_map))
-      != 0)
-    {
-      error (_("Error while reading in load map pointer."));
-    }
-
-  /* Read in the dld load module descriptor */
-  if (dlgetmodinfo (-1, 
-		    &dld_cache.dld_desc,
-		    sizeof(dld_cache.dld_desc), 
-		    pa64_target_read_memory, 
-		    0, 
-		    dld_cache.load_map)
-      == 0)
-    {
-      error (_("Error trying to get information about dynamic linker."));
-    }
-
-  /* Indicate that we have loaded the dld descriptor.  */
-  dld_cache.have_read_dld_descriptor = 1;
-
-  /* Add dld.sl to the list of known shared libraries so that we can
-     do unwind, etc. 
-
-     ?!? This may not be correct.  Consider of dld.sl contains symbols
-     which are also referenced/defined by the user program or some user
-     shared library.  We need to make absolutely sure that we do not
-     pollute the namespace from GDB's point of view.  */
-  dll_path = dlgetname (&dld_cache.dld_desc, 
-			sizeof(dld_cache.dld_desc), 
-			pa64_target_read_memory, 
-			0, 
-			dld_cache.load_map);
-  add_to_solist(0, dll_path, readsyms, &dld_cache.dld_desc, 0, target);
-  
-  return 1;
-}
-
-/* Read the .dynamic section and extract the information of interest,
-   which is stored in dld_cache.  The routine elf_locate_base in solib.c 
-   was used as a model for this.  */
-
-static int
-read_dynamic_info (asection *dyninfo_sect, dld_cache_t *dld_cache_p)
-{
-  char *buf;
-  char *bufend;
-  CORE_ADDR dyninfo_addr;
-  int dyninfo_sect_size;
-  CORE_ADDR entry_addr;
-
-  /* Read in .dynamic section, silently ignore errors.  */
-  dyninfo_addr = bfd_section_vma (symfile_objfile->obfd, dyninfo_sect);
-  dyninfo_sect_size = bfd_section_size (exec_bfd, dyninfo_sect);
-  buf = alloca (dyninfo_sect_size);
-  if (target_read_memory (dyninfo_addr, buf, dyninfo_sect_size))
-    return 0;
-
-  /* Scan the .dynamic section and record the items of interest. 
-     In particular, DT_HP_DLD_FLAGS */
-  for (bufend = buf + dyninfo_sect_size, entry_addr = dyninfo_addr;
-       buf < bufend;
-       buf += sizeof (Elf64_Dyn), entry_addr += sizeof (Elf64_Dyn))
-    {
-      Elf64_Dyn *x_dynp = (Elf64_Dyn*)buf;
-      Elf64_Sxword dyn_tag;
-      CORE_ADDR	dyn_ptr;
-      char *pbuf;
-
-      pbuf = alloca (TARGET_PTR_BIT / HOST_CHAR_BIT);
-      dyn_tag = bfd_h_get_64 (symfile_objfile->obfd, 
-			      (bfd_byte*) &x_dynp->d_tag);
-
-      /* We can't use a switch here because dyn_tag is 64 bits and HP's
-	 lame comiler does not handle 64bit items in switch statements.  */
-      if (dyn_tag == DT_NULL)
-	break;
-      else if (dyn_tag == DT_HP_DLD_FLAGS)
-	{
-	  /* Set dld_flags_addr and dld_flags in *dld_cache_p */
-	  dld_cache_p->dld_flags_addr = entry_addr + offsetof(Elf64_Dyn, d_un);
-	  if (target_read_memory (dld_cache_p->dld_flags_addr,
-	  			  (char*) &dld_cache_p->dld_flags, 
-				  sizeof(dld_cache_p->dld_flags))
-	      != 0)
-	    {
-	      error (_("Error while reading in .dynamic section of the program."));
-	    }
-	}
-      else if (dyn_tag == DT_HP_LOAD_MAP)
-	{
-	  /* Dld will place the address of the load map at load_map_addr
-	     after it starts running.  */
-	  if (target_read_memory (entry_addr + offsetof(Elf64_Dyn, 
-							d_un.d_ptr),
-				  (char*) &dld_cache_p->load_map_addr,
-				  sizeof(dld_cache_p->load_map_addr))
-	      != 0)
-	    {
-	      error (_("Error while reading in .dynamic section of the program."));
-	    }
-	}
-      else 
-	{
-	  /* tag is not of interest */
-	}
-    }
-
-  /* Record other information and set is_valid to 1. */
-  dld_cache_p->dyninfo_sect = dyninfo_sect;
-
-  /* Verify that we read in required info.  These fields are re-set to zero
-     in pa64_solib_restart.  */
-
-  if (dld_cache_p->dld_flags_addr != 0 && dld_cache_p->load_map_addr != 0) 
-    dld_cache_p->is_valid = 1;
-  else 
-    return 0;
-
-  return 1;
-}
-
-/* Wrapper for target_read_memory to make dlgetmodinfo happy.  */
-
-static void *
-pa64_target_read_memory (void *buffer, CORE_ADDR ptr, size_t bufsiz, int ident)
-{
-  if (target_read_memory (ptr, buffer, bufsiz) != 0)
-    return 0;
-  return buffer;
-}
-
-/* Called from handle_dynlink_load_event and pa64_solib_add to add
-   a shared library to so_list_head list and possibly to read in the
-   debug information for the library.  
-
-   If load_module_desc_p is NULL, then the load module descriptor must
-   be read from the inferior process at the address load_module_desc_addr.  */
-
-static void
-add_to_solist (int from_tty, char *dll_path, int readsyms,
-	       struct load_module_desc *load_module_desc_p,
-	       CORE_ADDR load_module_desc_addr, struct target_ops *target)
-{
-  struct so_list *new_so, *so_list_tail;
-  int pa64_solib_st_size_threshhold_exceeded;
-  LONGEST st_size;
-
-  if (symfile_objfile == NULL)
-    return;
-
-  so_list_tail = so_list_head;
-  /* Find the end of the list of shared objects.  */
-  while (so_list_tail && so_list_tail->next)
-    {
-      if (strcmp (so_list_tail->name, dll_path) == 0)
-	return;
-      so_list_tail = so_list_tail->next;
-    }
-
-  if (so_list_tail && strcmp (so_list_tail->name, dll_path) == 0)
-    return;
-
-  /* Add the shared library to the so_list_head list */
-  new_so = (struct so_list *) xmalloc (sizeof (struct so_list));
-  memset ((char *)new_so, 0, sizeof (struct so_list));
-  if (so_list_head == NULL)
-    {
-      so_list_head = new_so;
-      so_list_tail = new_so;
-    }
-  else
-    {
-      so_list_tail->next = new_so;
-      so_list_tail = new_so;
-    }
-
-  /* Initialize the new_so */
-  if (load_module_desc_p)
-    {
-      new_so->pa64_solib_desc = *load_module_desc_p;
-    }
-  else
-    {
-      if (target_read_memory (load_module_desc_addr, 
-			      (char*) &new_so->pa64_solib_desc,
-			      sizeof(struct load_module_desc))
-	  != 0)
-      {
-	error (_("Error while reading in dynamic library %s"), dll_path);
-      }
-    }
-  
-  new_so->pa64_solib_desc_addr = load_module_desc_addr;
-  new_so->loaded = 1;
-  new_so->name = obsavestring (dll_path, strlen(dll_path),
-			       &symfile_objfile->objfile_obstack);
-
-  /* If we are not going to load the library, tell the user if we
-     haven't already and return.  */
-
-  st_size = pa64_solib_sizeof_symbol_table (dll_path);
-  pa64_solib_st_size_threshhold_exceeded =
-       !from_tty 
-    && readsyms
-    && (  (st_size + pa64_solib_total_st_size) 
-	> (auto_solib_limit * (LONGEST) (1024 * 1024)));
-  if (pa64_solib_st_size_threshhold_exceeded)
-    {
-      pa64_solib_add_solib_objfile (new_so, dll_path, from_tty, 1);
-      return;
-    } 
-
-  /* Now read in debug info. */
-  pa64_solib_total_st_size += st_size;
-
-  /* This fills in new_so->objfile, among others. */
-  pa64_solib_load_symbols (new_so, 
-			   dll_path,
-			   from_tty, 
-			   0,
-			   target);
-  return;
-}
-
-
-/*
-   LOCAL FUNCTION
-
-   bfd_lookup_symbol -- lookup the value for a specific symbol
-
-   SYNOPSIS
-
-   CORE_ADDR bfd_lookup_symbol (bfd *abfd, char *symname)
-
-   DESCRIPTION
-
-   An expensive way to lookup the value of a single symbol for
-   bfd's that are only temporary anyway.  This is used by the
-   shared library support to find the address of the debugger
-   interface structures in the shared library.
-
-   Note that 0 is specifically allowed as an error return (no
-   such symbol).
- */
-
-static CORE_ADDR
-bfd_lookup_symbol (bfd *abfd, char *symname)
-{
-  unsigned int storage_needed;
-  asymbol *sym;
-  asymbol **symbol_table;
-  unsigned int number_of_symbols;
-  unsigned int i;
-  struct cleanup *back_to;
-  CORE_ADDR symaddr = 0;
-
-  storage_needed = bfd_get_symtab_upper_bound (abfd);
-
-  if (storage_needed > 0)
-    {
-      symbol_table = (asymbol **) xmalloc (storage_needed);
-      back_to = make_cleanup (xfree, symbol_table);
-      number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
-
-      for (i = 0; i < number_of_symbols; i++)
-	{
-	  sym = *symbol_table++;
-	  if (strcmp (sym->name, symname) == 0)
-	    {
-	      /* Bfd symbols are section relative. */
-	      symaddr = sym->value + sym->section->vma;
-	      break;
-	    }
-	}
-      do_cleanups (back_to);
-    }
-  return (symaddr);
-}
-