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)
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	}		      	      			:text
36	PROVIDE(__etext = .);
37	PROVIDE(_etext = .);
38	PROVIDE(etext = .);
39
40	. = ALIGN(8);
41	VDSO_ftr_fixup_start = .;
42	__ftr_fixup	: { *(__ftr_fixup) }
43	VDSO_ftr_fixup_end = .;
44
45	. = ALIGN(8);
46	VDSO_mmu_ftr_fixup_start = .;
47	__mmu_ftr_fixup	: { *(__mmu_ftr_fixup) }
48	VDSO_mmu_ftr_fixup_end = .;
49
50	. = ALIGN(8);
51	VDSO_lwsync_fixup_start = .;
52	__lwsync_fixup	: { *(__lwsync_fixup) }
53	VDSO_lwsync_fixup_end = .;
54
55#ifdef CONFIG_PPC64
56	. = ALIGN(8);
57	VDSO_fw_ftr_fixup_start = .;
58	__fw_ftr_fixup	: { *(__fw_ftr_fixup) }
59	VDSO_fw_ftr_fixup_end = .;
60#endif
61
62	/*
63	 * Other stuff is appended to the text segment:
64	 */
65	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
66	.rodata1	: { *(.rodata1) }
67
68	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
69	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
70	.gcc_except_table : { *(.gcc_except_table) }
71	.fixup		: { *(.fixup) }
72
73	.dynamic	: { *(.dynamic) }		:text	:dynamic
74	.got		: { *(.got) }			:text
75	.plt		: { *(.plt) }
76
77	_end = .;
78	__end = .;
79	PROVIDE(end = .);
80
81	DWARF_DEBUG
82	ELF_DETAILS
83
84	/DISCARD/	: {
85		*(.note.GNU-stack)
86		*(*.EMB.apuinfo)
87		*(.branch_lt)
88		*(.data .data.* .gnu.linkonce.d.* .sdata*)
89		*(.bss .sbss .dynbss .dynsbss)
90		*(.got1 .glink .iplt .rela*)
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