xref: /linux/arch/arm64/kernel/vdso32/vdso.lds.S (revision 4f9786035f9e519db41375818e1d0b5f20da2f10)
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Adapted from arm64 version.
4 *
5 * GNU linker script for the VDSO library.
6 * Heavily based on the vDSO linker scripts for other archs.
7 *
8 * Copyright (C) 2012-2018 ARM Limited
9 */
10
11#include <linux/const.h>
12#include <asm/page.h>
13#include <asm/vdso.h>
14#include <asm-generic/vmlinux.lds.h>
15#include <vdso/datapage.h>
16
17OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
18OUTPUT_ARCH(arm)
19
20SECTIONS
21{
22	VDSO_VVAR_SYMS
23
24	. = SIZEOF_HEADERS;
25
26	.hash		: { *(.hash) }			:text
27	.gnu.hash	: { *(.gnu.hash) }
28	.dynsym		: { *(.dynsym) }
29	.dynstr		: { *(.dynstr) }
30	.gnu.version	: { *(.gnu.version) }
31	.gnu.version_d	: { *(.gnu.version_d) }
32	.gnu.version_r	: { *(.gnu.version_r) }
33
34	.note		: { *(.note.*) }		:text	:note
35
36	.dynamic	: { *(.dynamic) }		:text	:dynamic
37
38	.rodata		: {
39		*(.rodata*)
40		*(.got)
41		*(.got.plt)
42		*(.plt)
43		*(.rel.iplt)
44		*(.iplt)
45		*(.igot.plt)
46	}						:text
47
48	.text		: {
49		*(.text*)
50		*(.glue_7)
51		*(.glue_7t)
52		*(.vfp11_veneer)
53		*(.v4_bx)
54	}						:text	=0xe7f001f2
55
56	.rel.dyn	: { *(.rel*) }
57
58	.ARM.exidx : { *(.ARM.exidx*) }
59	DWARF_DEBUG
60	ELF_DETAILS
61	.ARM.attributes 0 : { *(.ARM.attributes) }
62
63	/DISCARD/	: {
64		*(.note.GNU-stack)
65		*(.data .data.* .gnu.linkonce.d.* .sdata*)
66		*(.bss .sbss .dynbss .dynsbss)
67	}
68}
69
70/*
71 * We must supply the ELF program headers explicitly to get just one
72 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
73 */
74PHDRS
75{
76	text		PT_LOAD		FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
77	dynamic		PT_DYNAMIC	FLAGS(4);		/* PF_R */
78	note		PT_NOTE		FLAGS(4);		/* PF_R */
79}
80
81VERSION
82{
83	LINUX_2.6 {
84	global:
85		__vdso_clock_gettime;
86		__vdso_gettimeofday;
87		__vdso_clock_getres;
88		__vdso_clock_gettime64;
89	local: *;
90	};
91}
92