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authorKim Kibum <kb0929.kim@samsung.com>2012-05-21 17:41:56 +0900
committerKim Kibum <kb0929.kim@samsung.com>2012-05-21 17:41:56 +0900
commita976579f1c63224c75f12832f4466996b9b9f901 (patch)
tree301978d3724e6aa9c28e30739e60ac984055230d /libdw/libdw_alloc.c
parent2924cc08916c97ace431cd8936a3525d42dbcaa8 (diff)
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diff --git a/libdw/libdw_alloc.c b/libdw/libdw_alloc.c
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+/* Memory handling for libdw.
+ Copyright (C) 2003, 2004, 2006 Red Hat, Inc.
+ This file is part of Red Hat elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+ Red Hat elfutils 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; version 2 of the License.
+
+ Red Hat elfutils 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 Red Hat elfutils; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+ In addition, as a special exception, Red Hat, Inc. gives You the
+ additional right to link the code of Red Hat elfutils with code licensed
+ under any Open Source Initiative certified open source license
+ (http://www.opensource.org/licenses/index.php) which requires the
+ distribution of source code with any binary distribution and to
+ distribute linked combinations of the two. Non-GPL Code permitted under
+ this exception must only link to the code of Red Hat elfutils through
+ those well defined interfaces identified in the file named EXCEPTION
+ found in the source code files (the "Approved Interfaces"). The files
+ of Non-GPL Code may instantiate templates or use macros or inline
+ functions from the Approved Interfaces without causing the resulting
+ work to be covered by the GNU General Public License. Only Red Hat,
+ Inc. may make changes or additions to the list of Approved Interfaces.
+ Red Hat's grant of this exception is conditioned upon your not adding
+ any new exceptions. If you wish to add a new Approved Interface or
+ exception, please contact Red Hat. You must obey the GNU General Public
+ License in all respects for all of the Red Hat elfutils code and other
+ code used in conjunction with Red Hat elfutils except the Non-GPL Code
+ covered by this exception. If you modify this file, you may extend this
+ exception to your version of the file, but you are not obligated to do
+ so. If you do not wish to provide this exception without modification,
+ you must delete this exception statement from your version and license
+ this file solely under the GPL without exception.
+
+ Red Hat elfutils is an included package of the Open Invention Network.
+ An included package of the Open Invention Network is a package for which
+ Open Invention Network licensees cross-license their patents. No patent
+ license is granted, either expressly or impliedly, by designation as an
+ included package. Should you wish to participate in the Open Invention
+ Network licensing program, please visit www.openinventionnetwork.com
+ <http://www.openinventionnetwork.com>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <error.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/param.h>
+#include "libdwP.h"
+
+
+void *
+__libdw_allocate (Dwarf *dbg, size_t minsize, size_t align)
+{
+ size_t size = MAX (dbg->mem_default_size,
+ (align - 1 +
+ 2 * minsize + offsetof (struct libdw_memblock, mem)));
+ struct libdw_memblock *newp = malloc (size);
+ if (newp == NULL)
+ dbg->oom_handler ();
+
+ uintptr_t result = ((uintptr_t) newp->mem + align - 1) & ~(align - 1);
+
+ newp->size = size - offsetof (struct libdw_memblock, mem);
+ newp->remaining = (uintptr_t) newp + size - (result + minsize);
+
+ newp->prev = dbg->mem_tail;
+ dbg->mem_tail = newp;
+
+ return (void *) result;
+}
+
+
+Dwarf_OOM
+dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler)
+{
+ Dwarf_OOM old = dbg->oom_handler;
+ dbg->oom_handler = handler;
+ return old;
+}
+
+
+void
+__attribute ((noreturn, visibility ("hidden")))
+__libdw_oom (void)
+{
+ while (1)
+ error (EXIT_FAILURE, ENOMEM, "libdw");
+}