Move cleanups.[ch] to common

This commit moves cleanups.[ch] into gdb/common/.  The only change to
the content of the files is that cleanups.c's include list was altered
to match its new location.

gdb/ChangeLog:

	* cleanups.h: Moved to...
	* common/cleanups.h: New file.
	* cleanups.c: Moved to...
	* common/cleanups.c: New file.  Include common-defs.h and
	cleanups.h.  Do not include defs.h.
	* Makefile.in (SFILES): Replace cleanups.c with common/cleanups.c.
	(HFILES_NO_SRCDIR): Replace cleanups.h with common/cleanups.h.
	(cleanups.o): New rule.

gdb/gdbserver/ChangeLog:

	* Makefile.in (SFILES): Add common/cleanups.c.
	(OBS): cleanups.o.
	(cleanups.o): New rule.

1 files changed, 0 insertions, 296 deletions

diff --git a/gdb/cleanups.c b/gdb/cleanups.c
deleted file mode 100644
index ddf8e5b..0000000
--- a/gdb/cleanups.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/* Cleanup routines for GDB, the GNU debugger.
-
-   Copyright (C) 1986-2014 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 3 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, see <http://www.gnu.org/licenses/>.  */
-
-#include "defs.h"
-
-/* The cleanup list records things that have to be undone
-   if an error happens (descriptors to be closed, memory to be freed, etc.)
-   Each link in the chain records a function to call and an
-   argument to give it.
-
-   Use make_cleanup to add an element to the cleanup chain.
-   Use do_cleanups to do all cleanup actions back to a given
-   point in the chain.  Use discard_cleanups to remove cleanups
-   from the chain back to a given point, not doing them.
-
-   If the argument is pointer to allocated memory, then you need
-   to additionally set the 'free_arg' member to a function that will
-   free that memory.  This function will be called both when the cleanup
-   is executed and when it's discarded.  */
-
-struct cleanup
-{
-  struct cleanup *next;
-  void (*function) (void *);
-  void (*free_arg) (void *);
-  void *arg;
-};
-
-/* Used to mark the end of a cleanup chain.
-   The value is chosen so that it:
-   - is non-NULL so that make_cleanup never returns NULL,
-   - causes a segv if dereferenced
-     [though this won't catch errors that a value of, say,
-     ((struct cleanup *) -1) will]
-   - displays as something useful when printed in gdb.
-   This is const for a bit of extra robustness.
-   It is initialized to coax gcc into putting it into .rodata.
-   All fields are initialized to survive -Wextra.  */
-static const struct cleanup sentinel_cleanup = { 0, 0, 0, 0 };
-
-/* Handy macro to use when referring to sentinel_cleanup.  */
-#define SENTINEL_CLEANUP ((struct cleanup *) &sentinel_cleanup)
-
-/* Chain of cleanup actions established with make_cleanup,
-   to be executed if an error happens.  */
-static struct cleanup *cleanup_chain = SENTINEL_CLEANUP;
-
-/* Chain of cleanup actions established with make_final_cleanup,
-   to be executed when gdb exits.  */
-static struct cleanup *final_cleanup_chain = SENTINEL_CLEANUP;
-
-/* Main worker routine to create a cleanup.
-   PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
-   FUNCTION is the function to call to perform the cleanup.
-   ARG is passed to FUNCTION when called.
-   FREE_ARG, if non-NULL, is called after the cleanup is performed.
-
-   The result is a pointer to the previous chain pointer
-   to be passed later to do_cleanups or discard_cleanups.  */
-
-static struct cleanup *
-make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function,
-		  void *arg,  void (*free_arg) (void *))
-{
-  struct cleanup *new
-    = (struct cleanup *) xmalloc (sizeof (struct cleanup));
-  struct cleanup *old_chain = *pmy_chain;
-
-  new->next = *pmy_chain;
-  new->function = function;
-  new->free_arg = free_arg;
-  new->arg = arg;
-  *pmy_chain = new;
-
-  gdb_assert (old_chain != NULL);
-  return old_chain;
-}
-
-/* Worker routine to create a cleanup without a destructor.
-   PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
-   FUNCTION is the function to call to perform the cleanup.
-   ARG is passed to FUNCTION when called.
-
-   The result is a pointer to the previous chain pointer
-   to be passed later to do_cleanups or discard_cleanups.  */
-
-static struct cleanup *
-make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function,
-		 void *arg)
-{
-  return make_my_cleanup2 (pmy_chain, function, arg, NULL);
-}
-
-/* Add a new cleanup to the cleanup_chain,
-   and return the previous chain pointer
-   to be passed later to do_cleanups or discard_cleanups.
-   Args are FUNCTION to clean up with, and ARG to pass to it.  */
-
-struct cleanup *
-make_cleanup (make_cleanup_ftype *function, void *arg)
-{
-  return make_my_cleanup (&cleanup_chain, function, arg);
-}
-
-/* Same as make_cleanup except also includes TDOR, a destructor to free ARG.
-   DTOR is invoked when the cleanup is performed or when it is discarded.  */
-
-struct cleanup *
-make_cleanup_dtor (make_cleanup_ftype *function, void *arg,
-		   void (*dtor) (void *))
-{
-  return make_my_cleanup2 (&cleanup_chain,
-			   function, arg, dtor);
-}
-
-/* Same as make_cleanup except the cleanup is added to final_cleanup_chain.  */
-
-struct cleanup *
-make_final_cleanup (make_cleanup_ftype *function, void *arg)
-{
-  return make_my_cleanup (&final_cleanup_chain, function, arg);
-}
-
-/* Worker routine to perform cleanups.
-   PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
-   OLD_CHAIN is the result of a "make" cleanup routine.
-   Cleanups are performed until we get back to the old end of the chain.  */
-
-static void
-do_my_cleanups (struct cleanup **pmy_chain,
-		struct cleanup *old_chain)
-{
-  struct cleanup *ptr;
-
-  while ((ptr = *pmy_chain) != old_chain)
-    {
-      *pmy_chain = ptr->next;	/* Do this first in case of recursion.  */
-      (*ptr->function) (ptr->arg);
-      if (ptr->free_arg)
-	(*ptr->free_arg) (ptr->arg);
-      xfree (ptr);
-    }
-}
-
-/* Return a value that can be passed to do_cleanups, do_final_cleanups to
-   indicate perform all cleanups.  */
-
-struct cleanup *
-all_cleanups (void)
-{
-  return SENTINEL_CLEANUP;
-}
-
-/* Discard cleanups and do the actions they describe
-   until we get back to the point OLD_CHAIN in the cleanup_chain.  */
-
-void
-do_cleanups (struct cleanup *old_chain)
-{
-  do_my_cleanups (&cleanup_chain, old_chain);
-}
-
-/* Discard cleanups and do the actions they describe
-   until we get back to the point OLD_CHAIN in the final_cleanup_chain.  */
-
-void
-do_final_cleanups (struct cleanup *old_chain)
-{
-  do_my_cleanups (&final_cleanup_chain, old_chain);
-}
-
-/* Main worker routine to discard cleanups.
-   PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
-   OLD_CHAIN is the result of a "make" cleanup routine.
-   Cleanups are discarded until we get back to the old end of the chain.  */
-
-static void
-discard_my_cleanups (struct cleanup **pmy_chain,
-		     struct cleanup *old_chain)
-{
-  struct cleanup *ptr;
-
-  while ((ptr = *pmy_chain) != old_chain)
-    {
-      *pmy_chain = ptr->next;
-      if (ptr->free_arg)
-	(*ptr->free_arg) (ptr->arg);
-      xfree (ptr);
-    }
-}
-
-/* Discard cleanups, not doing the actions they describe,
-   until we get back to the point OLD_CHAIN in the cleanup chain.  */
-
-void
-discard_cleanups (struct cleanup *old_chain)
-{
-  discard_my_cleanups (&cleanup_chain, old_chain);
-}
-
-/* Discard final cleanups, not doing the actions they describe,
-   until we get back to the point OLD_CHAIN in the final cleanup chain.  */
-
-void
-discard_final_cleanups (struct cleanup *old_chain)
-{
-  discard_my_cleanups (&final_cleanup_chain, old_chain);
-}
-
-/* Main worker routine to save cleanups.
-   PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
-   The chain is emptied and the result is a pointer to the old chain.  */
-
-static struct cleanup *
-save_my_cleanups (struct cleanup **pmy_chain)
-{
-  struct cleanup *old_chain = *pmy_chain;
-
-  *pmy_chain = SENTINEL_CLEANUP;
-  return old_chain;
-}
-
-/* Set the cleanup_chain to 0, and return the old cleanup_chain.  */
-
-struct cleanup *
-save_cleanups (void)
-{
-  return save_my_cleanups (&cleanup_chain);
-}
-
-/* Set the final_cleanup_chain to 0, and return the old
-   final_cleanup_chain.  */
-
-struct cleanup *
-save_final_cleanups (void)
-{
-  return save_my_cleanups (&final_cleanup_chain);
-}
-
-/* Main worker routine to save cleanups.
-   PMY_CHAIN is a pointer to either cleanup_chain or final_cleanup_chain.
-   The chain is restored from CHAIN.  */
-
-static void
-restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain)
-{
-  if (*pmy_chain != SENTINEL_CLEANUP)
-    internal_warning (__FILE__, __LINE__,
-		      _("restore_my_cleanups has found a stale cleanup"));
-
-  *pmy_chain = chain;
-}
-
-/* Restore the cleanup chain from a previously saved chain.  */
-
-void
-restore_cleanups (struct cleanup *chain)
-{
-  restore_my_cleanups (&cleanup_chain, chain);
-}
-
-/* Restore the final cleanup chain from a previously saved chain.  */
-
-void
-restore_final_cleanups (struct cleanup *chain)
-{
-  restore_my_cleanups (&final_cleanup_chain, chain);
-}
-
-/* Provide a known function that does nothing, to use as a base for
-   a possibly long chain of cleanups.  This is useful where we
-   use the cleanup chain for handling normal cleanups as well as dealing
-   with cleanups that need to be done as a result of a call to error().
-   In such cases, we may not be certain where the first cleanup is, unless
-   we have a do-nothing one to always use as the base.  */
-
-void
-null_cleanup (void *arg)
-{
-}