1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * This is the infamous ld script for the 32 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("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle")
12#else
13OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
14#endif
15OUTPUT_ARCH(powerpc:common)
16ENTRY(_start)
17
18SECTIONS
19{
20	PROVIDE(_vdso_datapage = . - 2 * PAGE_SIZE);
21	. = SIZEOF_HEADERS;
22
23	.hash          	: { *(.hash) }			:text
24	.gnu.hash      	: { *(.gnu.hash) }
25	.dynsym        	: { *(.dynsym) }
26	.dynstr        	: { *(.dynstr) }
27	.gnu.version   	: { *(.gnu.version) }
28	.gnu.version_d 	: { *(.gnu.version_d) }
29	.gnu.version_r 	: { *(.gnu.version_r) }
30
31	.note		: { *(.note.*) }		:text	:note
32
33	. = ALIGN(16);
34	.text		: {
35		*(.text .stub .text.* .gnu.linkonce.t.* __ftr_alt_*)
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#ifdef CONFIG_PPC64
57	. = ALIGN(8);
58	VDSO_fw_ftr_fixup_start = .;
59	__fw_ftr_fixup	: { *(__fw_ftr_fixup) }
60	VDSO_fw_ftr_fixup_end = .;
61#endif
62
63	/*
64	 * Other stuff is appended to the text segment:
65	 */
66	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
67	.rodata1	: { *(.rodata1) }
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	.fixup		: { *(.fixup) }
73
74	.dynamic	: { *(.dynamic) }		:text	:dynamic
75	.got		: { *(.got) }			:text
76	.plt		: { *(.plt) }
77
78	_end = .;
79	__end = .;
80	PROVIDE(end = .);
81
82	STABS_DEBUG
83	DWARF_DEBUG
84	ELF_DETAILS
85
86	/DISCARD/	: {
87		*(.note.GNU-stack)
88		*(.data .data.* .gnu.linkonce.d.* .sdata*)
89		*(.bss .sbss .dynbss .dynsbss)
90		*(.got1)
91	}
92}
93
94/*
95 * Very old versions of ld do not recognize this name token; use the constant.
96 */
97#define PT_GNU_EH_FRAME	0x6474e550
98
99/*
100 * We must supply the ELF program headers explicitly to get just one
101 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
102 */
103PHDRS
104{
105	text		PT_LOAD FILEHDR PHDRS FLAGS(5);	/* PF_R|PF_X */
106	dynamic		PT_DYNAMIC FLAGS(4);		/* PF_R */
107	note		PT_NOTE FLAGS(4);		/* PF_R */
108	eh_frame_hdr	PT_GNU_EH_FRAME;
109}
110
111/*
112 * This controls what symbols we export from the DSO.
113 */
114VERSION
115{
116	VDSO_VERSION_STRING {
117	global:
118		__kernel_get_syscall_map;
119		__kernel_gettimeofday;
120		__kernel_clock_gettime;
121		__kernel_clock_gettime64;
122		__kernel_clock_getres;
123		__kernel_time;
124		__kernel_get_tbfreq;
125		__kernel_sync_dicache;
126		__kernel_sigtramp32;
127		__kernel_sigtramp_rt32;
128#if defined(CONFIG_PPC64) || !defined(CONFIG_SMP)
129		__kernel_getcpu;
130#endif
131
132	local: *;
133	};
134}
135
136/*
137 * Make the sigreturn code visible to the kernel.
138 */
139VDSO_sigtramp32		= __kernel_sigtramp32;
140VDSO_sigtramp_rt32	= __kernel_sigtramp_rt32;
141