1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * This is the infamous ld script for the 64 bits vdso
4 * library
5 */
6
7#include <asm/page.h>
8#include <asm/vdso.h>
9
10OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
11OUTPUT_ARCH(s390:64-bit)
12ENTRY(_start)
13
14SECTIONS
15{
16	PROVIDE(_vdso_data = . - __VVAR_PAGES * PAGE_SIZE);
17#ifdef CONFIG_TIME_NS
18	PROVIDE(_timens_data = _vdso_data + PAGE_SIZE);
19#endif
20	. = VDSO_LBASE + 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.*)
35	} :text
36	PROVIDE(__etext = .);
37	PROVIDE(_etext = .);
38	PROVIDE(etext = .);
39
40	/*
41	 * Other stuff is appended to the text segment:
42	 */
43	.rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
44	.rodata1	: { *(.rodata1) }
45
46	.dynamic	: { *(.dynamic) }		:text	:dynamic
47
48	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
49	.eh_frame	: { KEEP (*(.eh_frame)) }	:text
50	.gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
51
52	.rela.dyn ALIGN(8) : { *(.rela.dyn) }
53	.got ALIGN(8)	: { *(.got .toc) }
54	.got.plt ALIGN(8) : { *(.got.plt) }
55
56	_end = .;
57	PROVIDE(end = .);
58
59	/*
60	 * Stabs debugging sections are here too.
61	 */
62	.stab	       0 : { *(.stab) }
63	.stabstr       0 : { *(.stabstr) }
64	.stab.excl     0 : { *(.stab.excl) }
65	.stab.exclstr  0 : { *(.stab.exclstr) }
66	.stab.index    0 : { *(.stab.index) }
67	.stab.indexstr 0 : { *(.stab.indexstr) }
68	.comment       0 : { *(.comment) }
69
70	/*
71	 * DWARF debug sections.
72	 * Symbols in the DWARF debugging sections are relative to the
73	 * beginning of the section so we begin them at 0.
74	 */
75	/* DWARF 1 */
76	.debug		0 : { *(.debug) }
77	.line		0 : { *(.line) }
78	/* GNU DWARF 1 extensions */
79	.debug_srcinfo	0 : { *(.debug_srcinfo) }
80	.debug_sfnames	0 : { *(.debug_sfnames) }
81	/* DWARF 1.1 and DWARF 2 */
82	.debug_aranges	0 : { *(.debug_aranges) }
83	.debug_pubnames 0 : { *(.debug_pubnames) }
84	/* DWARF 2 */
85	.debug_info	0 : { *(.debug_info .gnu.linkonce.wi.*) }
86	.debug_abbrev	0 : { *(.debug_abbrev) }
87	.debug_line	0 : { *(.debug_line) }
88	.debug_frame	0 : { *(.debug_frame) }
89	.debug_str	0 : { *(.debug_str) }
90	.debug_loc	0 : { *(.debug_loc) }
91	.debug_macinfo	0 : { *(.debug_macinfo) }
92	/* SGI/MIPS DWARF 2 extensions */
93	.debug_weaknames 0 : { *(.debug_weaknames) }
94	.debug_funcnames 0 : { *(.debug_funcnames) }
95	.debug_typenames 0 : { *(.debug_typenames) }
96	.debug_varnames  0 : { *(.debug_varnames) }
97	/* DWARF 3 */
98	.debug_pubtypes 0 : { *(.debug_pubtypes) }
99	.debug_ranges	0 : { *(.debug_ranges) }
100	.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
101
102	/DISCARD/	: {
103		*(.note.GNU-stack)
104		*(.branch_lt)
105		*(.data .data.* .gnu.linkonce.d.* .sdata*)
106		*(.bss .sbss .dynbss .dynsbss)
107	}
108}
109
110/*
111 * Very old versions of ld do not recognize this name token; use the constant.
112 */
113#define PT_GNU_EH_FRAME	0x6474e550
114
115/*
116 * We must supply the ELF program headers explicitly to get just one
117 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
118 */
119PHDRS
120{
121	text		PT_LOAD FILEHDR PHDRS FLAGS(5);	/* PF_R|PF_X */
122	dynamic		PT_DYNAMIC FLAGS(4);		/* PF_R */
123	note		PT_NOTE FLAGS(4);		/* PF_R */
124	eh_frame_hdr	PT_GNU_EH_FRAME;
125}
126
127/*
128 * This controls what symbols we export from the DSO.
129 */
130VERSION
131{
132	VDSO_VERSION_STRING {
133	global:
134		/*
135		 * Has to be there for the kernel to find
136		 */
137		__kernel_gettimeofday;
138		__kernel_clock_gettime;
139		__kernel_clock_getres;
140		__kernel_getcpu;
141		__kernel_restart_syscall;
142		__kernel_rt_sigreturn;
143		__kernel_sigreturn;
144	local: *;
145	};
146}
147