xref: /linux/arch/riscv/kernel/vmlinux.lds.S (revision 4a1d8ababde685a77fd4fd61e58f973cbdf29f8c) 
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Regents of the University of California
4 * Copyright (C) 2017 SiFive
5 */
6
7#define RO_EXCEPTION_TABLE_ALIGN	4
8#define RUNTIME_DISCARD_EXIT
9
10#ifdef CONFIG_XIP_KERNEL
11#include "vmlinux-xip.lds.S"
12#else
13
14#include <asm/pgtable.h>
15#define LOAD_OFFSET KERNEL_LINK_ADDR
16
17#include <asm/vmlinux.lds.h>
18#include <asm/page.h>
19#include <asm/cache.h>
20#include <asm/thread_info.h>
21#include <asm/set_memory.h>
22#include "image-vars.h"
23
24#include <linux/sizes.h>
25OUTPUT_ARCH(riscv)
26ENTRY(_start)
27
28jiffies = jiffies_64;
29
30SECTIONS
31{
32	/* Beginning of code and text segment */
33	. = LOAD_OFFSET;
34	_start = .;
35	HEAD_TEXT_SECTION
36	. = ALIGN(PAGE_SIZE);
37
38	.text : {
39		_text = .;
40		_stext = .;
41		TEXT_TEXT
42		SCHED_TEXT
43		LOCK_TEXT
44		KPROBES_TEXT
45		ENTRY_TEXT
46		IRQENTRY_TEXT
47		SOFTIRQENTRY_TEXT
48		_etext = .;
49	}
50
51	. = ALIGN(SECTION_ALIGN);
52	__init_begin = .;
53	__init_text_begin = .;
54	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) ALIGN(SECTION_ALIGN) { \
55		_sinittext = .;						\
56		INIT_TEXT						\
57		_einittext = .;						\
58	}
59
60	. = ALIGN(8);
61	__soc_early_init_table : {
62		__soc_early_init_table_start = .;
63		KEEP(*(__soc_early_init_table))
64		__soc_early_init_table_end = .;
65	}
66	__soc_builtin_dtb_table : {
67		__soc_builtin_dtb_table_start = .;
68		KEEP(*(__soc_builtin_dtb_table))
69		__soc_builtin_dtb_table_end = .;
70	}
71	/* we have to discard exit text and such at runtime, not link time */
72	__exittext_begin = .;
73	.exit.text :
74	{
75		EXIT_TEXT
76	}
77	__exittext_end = .;
78
79	__init_text_end = .;
80	. = ALIGN(SECTION_ALIGN);
81#ifdef CONFIG_EFI
82	. = ALIGN(PECOFF_SECTION_ALIGNMENT);
83	__pecoff_text_end = .;
84#endif
85	/* Start of init data section */
86	__init_data_begin = .;
87	INIT_DATA_SECTION(16)
88
89	.init.pi : {
90		KEEP(*(.init.pi*))
91	}
92
93	.init.bss : {
94		KEEP(*(.init.bss*))	/* from the EFI stub */
95	}
96	.exit.data :
97	{
98		EXIT_DATA
99	}
100
101	RUNTIME_CONST_VARIABLES
102
103	PERCPU_SECTION(L1_CACHE_BYTES)
104
105	.rel.dyn : {
106		*(.rel.dyn*)
107	}
108
109	.rela.dyn : ALIGN(8) {
110		__rela_dyn_start = .;
111		*(.rela .rela*)
112		__rela_dyn_end = .;
113	}
114
115	__init_data_end = .;
116
117	. = ALIGN(8);
118	.alternative : {
119		__alt_start = .;
120		KEEP(*(.alternative))
121		__alt_end = .;
122	}
123	__init_end = .;
124
125	/* Start of data section */
126	_sdata = .;
127	RO_DATA(SECTION_ALIGN)
128	.srodata : {
129		*(.srodata*)
130	}
131
132	. = ALIGN(SECTION_ALIGN);
133	_data = .;
134
135	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
136	.sdata : {
137		__global_pointer$ = . + 0x800;
138		*(.sdata*)
139	}
140
141	.got : { *(.got*) }
142
143#ifdef CONFIG_RELOCATABLE
144	.data.rel : { *(.data.rel*) }
145	.plt : { *(.plt) }
146	.dynamic : { *(.dynamic) }
147	.dynsym : { *(.dynsym) }
148	.dynstr : { *(.dynstr) }
149	.hash : { *(.hash) }
150	.gnu.hash : { *(.gnu.hash) }
151#endif
152
153#ifdef CONFIG_EFI
154	.pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); }
155	__pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end);
156	__pecoff_data_raw_end = ABSOLUTE(.);
157#endif
158
159	/* End of data section */
160	_edata = .;
161
162	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
163
164#ifdef CONFIG_EFI
165	. = ALIGN(PECOFF_SECTION_ALIGNMENT);
166	__pecoff_data_virt_size = ABSOLUTE(. - __pecoff_text_end);
167	__pecoff_data_virt_end = ABSOLUTE(.);
168#endif
169	_end = .;
170
171	STABS_DEBUG
172	DWARF_DEBUG
173	ELF_DETAILS
174	.riscv.attributes 0 : { *(.riscv.attributes) }
175
176	DISCARDS
177}
178#endif /* CONFIG_XIP_KERNEL */
179