Roland McGrath | c76f0b0 | 2007-09-27 07:31:33 +0000 | [diff] [blame] | 1 | /* Conversion functions for notes. |
Roland McGrath | 315ebd5 | 2009-01-05 00:10:11 -0800 | [diff] [blame^] | 2 | Copyright (C) 2007, 2009 Red Hat, Inc. |
Roland McGrath | c76f0b0 | 2007-09-27 07:31:33 +0000 | [diff] [blame] | 3 | This file is part of Red Hat elfutils. |
| 4 | |
| 5 | Red Hat elfutils is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by the |
| 7 | Free Software Foundation; version 2 of the License. |
| 8 | |
| 9 | Red Hat elfutils is distributed in the hope that it will be useful, but |
| 10 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License along |
| 15 | with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 16 | Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 17 | |
| 18 | In addition, as a special exception, Red Hat, Inc. gives You the |
| 19 | additional right to link the code of Red Hat elfutils with code licensed |
| 20 | under any Open Source Initiative certified open source license |
| 21 | (http://www.opensource.org/licenses/index.php) which requires the |
| 22 | distribution of source code with any binary distribution and to |
| 23 | distribute linked combinations of the two. Non-GPL Code permitted under |
| 24 | this exception must only link to the code of Red Hat elfutils through |
| 25 | those well defined interfaces identified in the file named EXCEPTION |
| 26 | found in the source code files (the "Approved Interfaces"). The files |
| 27 | of Non-GPL Code may instantiate templates or use macros or inline |
| 28 | functions from the Approved Interfaces without causing the resulting |
| 29 | work to be covered by the GNU General Public License. Only Red Hat, |
| 30 | Inc. may make changes or additions to the list of Approved Interfaces. |
| 31 | Red Hat's grant of this exception is conditioned upon your not adding |
| 32 | any new exceptions. If you wish to add a new Approved Interface or |
| 33 | exception, please contact Red Hat. You must obey the GNU General Public |
| 34 | License in all respects for all of the Red Hat elfutils code and other |
| 35 | code used in conjunction with Red Hat elfutils except the Non-GPL Code |
| 36 | covered by this exception. If you modify this file, you may extend this |
| 37 | exception to your version of the file, but you are not obligated to do |
| 38 | so. If you do not wish to provide this exception without modification, |
| 39 | you must delete this exception statement from your version and license |
| 40 | this file solely under the GPL without exception. |
| 41 | |
| 42 | Red Hat elfutils is an included package of the Open Invention Network. |
| 43 | An included package of the Open Invention Network is a package for which |
| 44 | Open Invention Network licensees cross-license their patents. No patent |
| 45 | license is granted, either expressly or impliedly, by designation as an |
| 46 | included package. Should you wish to participate in the Open Invention |
| 47 | Network licensing program, please visit www.openinventionnetwork.com |
| 48 | <http://www.openinventionnetwork.com>. */ |
| 49 | |
| 50 | static void |
| 51 | elf_cvt_note (void *dest, const void *src, size_t len, int encode) |
| 52 | { |
| 53 | assert (sizeof (Elf32_Nhdr) == sizeof (Elf64_Nhdr)); |
| 54 | |
Roland McGrath | 315ebd5 | 2009-01-05 00:10:11 -0800 | [diff] [blame^] | 55 | while (len >= sizeof (Elf32_Nhdr)) |
Roland McGrath | c76f0b0 | 2007-09-27 07:31:33 +0000 | [diff] [blame] | 56 | { |
| 57 | (1 ? Elf32_cvt_Nhdr : Elf64_cvt_Nhdr) (dest, src, sizeof (Elf32_Nhdr), |
| 58 | encode); |
| 59 | const Elf32_Nhdr *n = encode ? src : dest; |
| 60 | Elf32_Word namesz = NOTE_ALIGN (n->n_namesz); |
| 61 | Elf32_Word descsz = NOTE_ALIGN (n->n_descsz); |
| 62 | |
| 63 | len -= sizeof *n; |
| 64 | src += sizeof *n; |
| 65 | dest += sizeof *n; |
| 66 | |
| 67 | if (namesz > len) |
| 68 | break; |
| 69 | len -= namesz; |
| 70 | if (descsz > len) |
| 71 | break; |
| 72 | len -= descsz; |
| 73 | |
| 74 | if (src != dest) |
| 75 | memcpy (dest, src, namesz + descsz); |
| 76 | |
| 77 | src += namesz + descsz; |
| 78 | dest += namesz + descsz; |
| 79 | } |
| 80 | } |