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1/* SPDX-License-Identifier: GPL-2.0 */
2#include <asm-generic/vmlinux.lds.h>
3
4#ifdef CONFIG_HOTPLUG_CPU
5#define ARM_CPU_DISCARD(x)
6#define ARM_CPU_KEEP(x) x
7#else
8#define ARM_CPU_DISCARD(x) x
9#define ARM_CPU_KEEP(x)
10#endif
11
12#if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
13 defined(CONFIG_GENERIC_BUG) || defined(CONFIG_JUMP_LABEL)
14#define ARM_EXIT_KEEP(x) x
15#define ARM_EXIT_DISCARD(x)
16#else
17#define ARM_EXIT_KEEP(x)
18#define ARM_EXIT_DISCARD(x) x
19#endif
20
21#ifdef CONFIG_MMU
22#define ARM_MMU_KEEP(x) x
23#define ARM_MMU_DISCARD(x)
24#else
25#define ARM_MMU_KEEP(x)
26#define ARM_MMU_DISCARD(x) x
27#endif
28
29/*
30 * ld.lld does not support NOCROSSREFS:
31 * https://github.com/ClangBuiltLinux/linux/issues/1609
32 */
33#ifdef CONFIG_LD_IS_LLD
34#define NOCROSSREFS
35#endif
36
37/* Set start/end symbol names to the LMA for the section */
38#define ARM_LMA(sym, section) \
39 sym##_start = LOADADDR(section); \
40 sym##_end = LOADADDR(section) + SIZEOF(section)
41
42#define PROC_INFO \
43 . = ALIGN(4); \
44 __proc_info_begin = .; \
45 *(.proc.info.init) \
46 __proc_info_end = .;
47
48#define IDMAP_TEXT \
49 ALIGN_FUNCTION(); \
50 __idmap_text_start = .; \
51 *(.idmap.text) \
52 __idmap_text_end = .; \
53
54#define ARM_DISCARD \
55 *(.ARM.exidx.exit.text) \
56 *(.ARM.extab.exit.text) \
57 *(.ARM.exidx.text.exit) \
58 *(.ARM.extab.text.exit) \
59 ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text)) \
60 ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text)) \
61 ARM_EXIT_DISCARD(EXIT_TEXT) \
62 ARM_EXIT_DISCARD(EXIT_DATA) \
63 EXIT_CALL \
64 ARM_MMU_DISCARD(*(.text.fixup)) \
65 ARM_MMU_DISCARD(*(__ex_table)) \
66 COMMON_DISCARDS
67
68/*
69 * Sections that should stay zero sized, which is safer to explicitly
70 * check instead of blindly discarding.
71 */
72#define ARM_ASSERTS \
73 .plt : { \
74 *(.iplt) *(.rel.iplt) *(.iplt) *(.igot.plt) \
75 } \
76 ASSERT(SIZEOF(.plt) == 0, \
77 "Unexpected run-time procedure linkages detected!")
78
79#define ARM_DETAILS \
80 ELF_DETAILS \
81 .ARM.attributes 0 : { *(.ARM.attributes) }
82
83#define ARM_STUBS_TEXT \
84 *(.gnu.warning) \
85 *(.glue_7) \
86 *(.glue_7t) \
87 *(.vfp11_veneer) \
88 *(.v4_bx)
89
90#define ARM_TEXT \
91 IDMAP_TEXT \
92 __entry_text_start = .; \
93 *(.entry.text) \
94 __entry_text_end = .; \
95 IRQENTRY_TEXT \
96 SOFTIRQENTRY_TEXT \
97 TEXT_TEXT \
98 SCHED_TEXT \
99 CPUIDLE_TEXT \
100 LOCK_TEXT \
101 KPROBES_TEXT \
102 ARM_STUBS_TEXT \
103 . = ALIGN(4); \
104 *(.got) /* Global offset table */ \
105 ARM_CPU_KEEP(PROC_INFO)
106
107/* Stack unwinding tables */
108#define ARM_UNWIND_SECTIONS \
109 . = ALIGN(8); \
110 .ARM.unwind_idx : { \
111 __start_unwind_idx = .; \
112 *(.ARM.exidx*) \
113 __stop_unwind_idx = .; \
114 } \
115 .ARM.unwind_tab : { \
116 __start_unwind_tab = .; \
117 *(.ARM.extab*) \
118 __stop_unwind_tab = .; \
119 }
120
121/*
122 * The vectors and stubs are relocatable code, and the
123 * only thing that matters is their relative offsets
124 */
125#define ARM_VECTORS \
126 __vectors_lma = .; \
127 OVERLAY 0xffff0000 : NOCROSSREFS AT(__vectors_lma) { \
128 .vectors { \
129 *(.vectors) \
130 } \
131 .vectors.bhb.loop8 { \
132 *(.vectors.bhb.loop8) \
133 } \
134 .vectors.bhb.bpiall { \
135 *(.vectors.bhb.bpiall) \
136 } \
137 } \
138 ARM_LMA(__vectors, .vectors); \
139 ARM_LMA(__vectors_bhb_loop8, .vectors.bhb.loop8); \
140 ARM_LMA(__vectors_bhb_bpiall, .vectors.bhb.bpiall); \
141 . = __vectors_lma + SIZEOF(.vectors) + \
142 SIZEOF(.vectors.bhb.loop8) + \
143 SIZEOF(.vectors.bhb.bpiall); \
144 \
145 __stubs_lma = .; \
146 .stubs ADDR(.vectors) + 0x1000 : AT(__stubs_lma) { \
147 *(.stubs) \
148 } \
149 ARM_LMA(__stubs, .stubs); \
150 . = __stubs_lma + SIZEOF(.stubs); \
151 \
152 PROVIDE(vector_fiq_offset = vector_fiq - ADDR(.vectors));
153
154#define ARM_TCM \
155 __itcm_start = ALIGN(4); \
156 .text_itcm ITCM_OFFSET : AT(__itcm_start - LOAD_OFFSET) { \
157 __sitcm_text = .; \
158 *(.tcm.text) \
159 *(.tcm.rodata) \
160 . = ALIGN(4); \
161 __eitcm_text = .; \
162 } \
163 . = __itcm_start + SIZEOF(.text_itcm); \
164 \
165 __dtcm_start = .; \
166 .data_dtcm DTCM_OFFSET : AT(__dtcm_start - LOAD_OFFSET) { \
167 __sdtcm_data = .; \
168 *(.tcm.data) \
169 . = ALIGN(4); \
170 __edtcm_data = .; \
171 } \
172 . = __dtcm_start + SIZEOF(.data_dtcm);