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-rw-r--r--arch/arm/vdso/vdso.lds.S87
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1/*
2 * Adapted from arm64 version.
3 *
4 * GNU linker script for the VDSO library.
5 *
6 * Copyright (C) 2012 ARM Limited
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 *
20 * Author: Will Deacon <will.deacon@arm.com>
21 * Heavily based on the vDSO linker scripts for other archs.
22 */
23
24#include <linux/const.h>
25#include <asm/page.h>
26#include <asm/vdso.h>
27
28OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
29OUTPUT_ARCH(arm)
30
31SECTIONS
32{
33 PROVIDE(_start = .);
34
35 . = SIZEOF_HEADERS;
36
37 .hash : { *(.hash) } :text
38 .gnu.hash : { *(.gnu.hash) }
39 .dynsym : { *(.dynsym) }
40 .dynstr : { *(.dynstr) }
41 .gnu.version : { *(.gnu.version) }
42 .gnu.version_d : { *(.gnu.version_d) }
43 .gnu.version_r : { *(.gnu.version_r) }
44
45 .note : { *(.note.*) } :text :note
46
47
48 .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
49 .eh_frame : { KEEP (*(.eh_frame)) } :text
50
51 .dynamic : { *(.dynamic) } :text :dynamic
52
53 .rodata : { *(.rodata*) } :text
54
55 .text : { *(.text*) } :text =0xe7f001f2
56
57 .got : { *(.got) }
58 .rel.plt : { *(.rel.plt) }
59
60 /DISCARD/ : {
61 *(.note.GNU-stack)
62 *(.data .data.* .gnu.linkonce.d.* .sdata*)
63 *(.bss .sbss .dynbss .dynsbss)
64 }
65}
66
67/*
68 * We must supply the ELF program headers explicitly to get just one
69 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
70 */
71PHDRS
72{
73 text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
74 dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
75 note PT_NOTE FLAGS(4); /* PF_R */
76 eh_frame_hdr PT_GNU_EH_FRAME;
77}
78
79VERSION
80{
81 LINUX_2.6 {
82 global:
83 __vdso_clock_gettime;
84 __vdso_gettimeofday;
85 local: *;
86 };
87}