1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * This is the infamous ld script for the 64 bits vdso
4 * library
5 */
6#include <asm/vdso.h>
7#include <asm/page.h>
8#include <asm-generic/vmlinux.lds.h>
9
10#ifdef __LITTLE_ENDIAN__
11OUTPUT_FORMAT("elf64-powerpcle", "elf64-powerpcle", "elf64-powerpcle")
12#else
13OUTPUT_FORMAT("elf64-powerpc", "elf64-powerpc", "elf64-powerpc")
14#endif
15OUTPUT_ARCH(powerpc:common64)
16
17SECTIONS
18{
19	PROVIDE(_vdso_datapage = . - 2 * PAGE_SIZE);
20	. = SIZEOF_HEADERS;
21
22	.hash		: { *(.hash) }			:text
23	.gnu.hash	: { *(.gnu.hash) }
24	.dynsym		: { *(.dynsym) }
25	.dynstr		: { *(.dynstr) }
26	.gnu.version	: { *(.gnu.version) }
27	.gnu.version_d	: { *(.gnu.version_d) }
28	.gnu.version_r	: { *(.gnu.version_r) }
29
30	.note		: { *(.note.*) }		:text	:note
31
32	. = ALIGN(16);
33	.text		: {
34		*(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*)
35		*(.sfpr .glink)
36	}						:text
37	PROVIDE(__etext = .);
38	PROVIDE(_etext = .);
39	PROVIDE(etext = .);
40
41	. = ALIGN(8);
42	VDSO_ftr_fixup_start = .;
43	__ftr_fixup	: { *(__ftr_fixup) }
44	VDSO_ftr_fixup_end = .;
45
46	. = ALIGN(8);
47	VDSO_mmu_ftr_fixup_start = .;
48	__mmu_ftr_fixup	: { *(__mmu_ftr_fixup) }
49	VDSO_mmu_ftr_fixup_end = .;
50
51	. = ALIGN(8);
52	VDSO_lwsync_fixup_start = .;
53	__lwsync_fixup	: { *(__lwsync_fixup) }
54	VDSO_lwsync_fixup_end = .;
55
56	. = ALIGN(8);
57	VDSO_fw_ftr_fixup_start = .;
58	__fw_ftr_fixup	: { *(__fw_ftr_fixup) }
59	VDSO_fw_ftr_fixup_end = .;
60
61	/*
62	 * Other stuff is appended to the text segment:
63	 */
64	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
65	.rodata1	: { *(.rodata1) }
66
67	.dynamic	: { *(.dynamic) }		:text	:dynamic
68
69	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
70	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
71	.gcc_except_table : { *(.gcc_except_table) }
72	.rela.dyn ALIGN(8) : { *(.rela.dyn) }
73
74	.got ALIGN(8)	: { *(.got .toc) }
75
76	_end = .;
77	PROVIDE(end = .);
78
79	DWARF_DEBUG
80	ELF_DETAILS
81
82	/DISCARD/	: {
83		*(.note.GNU-stack)
84		*(.branch_lt)
85		*(.data .data.* .gnu.linkonce.d.* .sdata*)
86		*(.bss .sbss .dynbss .dynsbss)
87		*(.opd)
88	}
89}
90
91/*
92 * Very old versions of ld do not recognize this name token; use the constant.
93 */
94#define PT_GNU_EH_FRAME	0x6474e550
95
96/*
97 * We must supply the ELF program headers explicitly to get just one
98 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
99 */
100PHDRS
101{
102	text		PT_LOAD FILEHDR PHDRS FLAGS(5);	/* PF_R|PF_X */
103	dynamic		PT_DYNAMIC FLAGS(4);		/* PF_R */
104	note		PT_NOTE FLAGS(4);		/* PF_R */
105	eh_frame_hdr	PT_GNU_EH_FRAME;
106}
107
108/*
109 * This controls what symbols we export from the DSO.
110 */
111VERSION
112{
113	VDSO_VERSION_STRING {
114	global:
115		__kernel_get_syscall_map;
116		__kernel_gettimeofday;
117		__kernel_clock_gettime;
118		__kernel_clock_getres;
119		__kernel_get_tbfreq;
120		__kernel_sync_dicache;
121		__kernel_sigtramp_rt64;
122		__kernel_getcpu;
123		__kernel_time;
124
125	local: *;
126	};
127}
128
129/*
130 * Make the sigreturn code visible to the kernel.
131 */
132VDSO_sigtramp_rt64	= __kernel_start_sigtramp_rt64;
133