| /* Special .init and .fini section support. |
| Copyright (C) 1997-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU Lesser General Public |
| License, the Free Software Foundation gives you unlimited |
| permission to link the compiled version of this file with other |
| programs, and to distribute those programs without any restriction |
| coming from the use of this file. (The Lesser General Public |
| License restrictions do apply in other respects; for example, they |
| cover modification of the file, and distribution when not linked |
| into another program.) |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* Define an ELF note identifying the operating-system ABI that the |
| executable was created for. The ELF note information identifies a |
| particular OS or coordinated development effort within which the |
| ELF header's e_machine value plus (for dynamically linked programs) |
| the PT_INTERP dynamic linker name and DT_NEEDED shared library |
| names fully identify the runtime environment required by an |
| executable. |
| |
| The general format of ELF notes is as follows. |
| Offsets and lengths are bytes or (parenthetical references) to the |
| values in other fields. |
| |
| offset length contents |
| 0 4 length of name |
| 4 4 length of data |
| 8 4 note type |
| 12 (0) vendor name |
| - null-terminated ASCII string, padded to 4-byte alignment |
| 12+(0) (4) note data, |
| |
| The GNU project and cooperating development efforts (including the |
| Linux community) use note type 1 and a vendor name string of "GNU" |
| for a note descriptor that indicates ABI requirements. The note data |
| is four 32-bit words. The first of these is an operating system |
| number (0=Linux, 1=Hurd, 2=Solaris, ...) and the remaining three |
| identify the earliest release of that OS that supports this ABI. |
| See abi-tags (top level) for details. */ |
| |
| #include <config.h> |
| #include <abi-tag.h> /* OS-specific ABI tag value */ |
| |
| /* The linker (GNU ld 2.8 and later) recognizes an allocated section whose |
| name begins with `.note' and creates a PT_NOTE program header entry |
| pointing at it. */ |
| |
| .section ".note.ABI-tag", "a" |
| .p2align 2 |
| .long 1f - 0f /* name length */ |
| .long 3f - 2f /* data length */ |
| .long 1 /* note type */ |
| 0: .asciz "GNU" /* vendor name */ |
| 1: .p2align 2 |
| 2: .long __ABI_TAG_OS /* note data: the ABI tag */ |
| .long __ABI_TAG_VERSION |
| 3: .p2align 2 /* pad out section */ |
