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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* ld script to make s390 Linux kernel |
3 | * Written by Martin Schwidefsky (schwidefsky@de.ibm.com) | |
4 | */ | |
5 | ||
0778dc3a | 6 | #include <asm/thread_info.h> |
52480ee5 | 7 | #include <asm/page.h> |
0ccb32c9 HC |
8 | |
9 | /* | |
10 | * Put .bss..swapper_pg_dir as the first thing in .bss. This will | |
11 | * make sure it has 16k alignment. | |
12 | */ | |
13 | #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir) | |
14 | ||
d07a980c HC |
15 | /* Handle ro_after_init data on our own. */ |
16 | #define RO_AFTER_INIT_DATA | |
17 | ||
1da177e4 | 18 | #include <asm-generic/vmlinux.lds.h> |
d1b52a43 | 19 | #include <asm/vmlinux.lds.h> |
1da177e4 | 20 | |
1da177e4 LT |
21 | OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390") |
22 | OUTPUT_ARCH(s390:64-bit) | |
8282cd64 | 23 | ENTRY(startup_continue) |
1da177e4 | 24 | jiffies = jiffies_64; |
1da177e4 | 25 | |
ea29ee16 MS |
26 | PHDRS { |
27 | text PT_LOAD FLAGS(5); /* R_E */ | |
28 | data PT_LOAD FLAGS(7); /* RWE */ | |
29 | note PT_NOTE FLAGS(0); /* ___ */ | |
30 | } | |
31 | ||
1da177e4 LT |
32 | SECTIONS |
33 | { | |
183ab05f | 34 | . = 0x100000; |
e16af09d | 35 | .text : { |
24350fda VG |
36 | _stext = .; /* Start of text section */ |
37 | _text = .; /* Text and read-only data */ | |
2133bb8d TA |
38 | HEAD_TEXT |
39 | TEXT_TEXT | |
e16af09d | 40 | SCHED_TEXT |
6727ad9e | 41 | CPUIDLE_TEXT |
e16af09d SR |
42 | LOCK_TEXT |
43 | KPROBES_TEXT | |
88dbd203 | 44 | IRQENTRY_TEXT |
be7635e7 | 45 | SOFTIRQENTRY_TEXT |
94cbc0ea | 46 | *(.text.*_indirect_*) |
e16af09d SR |
47 | *(.fixup) |
48 | *(.gnu.warning) | |
24350fda VG |
49 | . = ALIGN(PAGE_SIZE); |
50 | _etext = .; /* End of text section */ | |
a817a61f | 51 | } :text = 0x0700 |
1da177e4 | 52 | |
ea29ee16 | 53 | NOTES :text :note |
ea29ee16 | 54 | |
7a2512b7 MS |
55 | .dummy : { *(.dummy) } :data |
56 | ||
56280b1b | 57 | RO_DATA_SECTION(PAGE_SIZE) |
1da177e4 | 58 | |
52480ee5 | 59 | . = ALIGN(PAGE_SIZE); |
dfcc3e6a | 60 | _sdata = .; /* Start of data section */ |
e16af09d | 61 | |
d07a980c HC |
62 | . = ALIGN(PAGE_SIZE); |
63 | __start_ro_after_init = .; | |
64 | .data..ro_after_init : { | |
65 | *(.data..ro_after_init) | |
57d15877 | 66 | JUMP_TABLE_DATA |
d07a980c HC |
67 | } |
68 | EXCEPTION_TABLE(16) | |
69 | . = ALIGN(PAGE_SIZE); | |
70 | __end_ro_after_init = .; | |
e16af09d | 71 | |
04a95f6d | 72 | RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE) |
bf9921a9 | 73 | BOOT_DATA_PRESERVED |
e16af09d | 74 | |
e16af09d SR |
75 | _edata = .; /* End of data section */ |
76 | ||
e16af09d | 77 | /* will be freed after init */ |
52480ee5 | 78 | . = ALIGN(PAGE_SIZE); /* Init code and data */ |
e16af09d | 79 | __init_begin = .; |
04a95f6d | 80 | |
57d7f939 MS |
81 | . = ALIGN(PAGE_SIZE); |
82 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { | |
1c21765c | 83 | _sinittext = .; |
57d7f939 MS |
84 | INIT_TEXT |
85 | . = ALIGN(PAGE_SIZE); | |
1c21765c | 86 | _einittext = .; |
57d7f939 | 87 | } |
04a95f6d | 88 | |
e16af09d SR |
89 | /* |
90 | * .exit.text is discarded at runtime, not link time, | |
91 | * to deal with references from __bug_table | |
92 | */ | |
93 | .exit.text : { | |
01ba2bdc | 94 | EXIT_TEXT |
e16af09d SR |
95 | } |
96 | ||
a4e69245 HC |
97 | .exit.data : { |
98 | EXIT_DATA | |
99 | } | |
100 | ||
686140a1 VG |
101 | /* |
102 | * struct alt_inst entries. From the header (alternative.h): | |
103 | * "Alternative instructions for different CPU types or capabilities" | |
104 | * Think locking instructions on spinlocks. | |
105 | * Note, that it is a part of __init region. | |
106 | */ | |
107 | . = ALIGN(8); | |
108 | .altinstructions : { | |
109 | __alt_instructions = .; | |
110 | *(.altinstructions) | |
111 | __alt_instructions_end = .; | |
112 | } | |
113 | ||
114 | /* | |
115 | * And here are the replacement instructions. The linker sticks | |
116 | * them as binary blobs. The .altinstructions has enough data to | |
117 | * get the address and the length of them to patch the kernel safely. | |
118 | * Note, that it is a part of __init region. | |
119 | */ | |
120 | .altinstr_replacement : { | |
121 | *(.altinstr_replacement) | |
122 | } | |
123 | ||
f19fbd5e MS |
124 | /* |
125 | * Table with the patch locations to undo expolines | |
126 | */ | |
127 | .nospec_call_table : { | |
128 | __nospec_call_start = . ; | |
129 | *(.s390_indirect*) | |
130 | __nospec_call_end = . ; | |
131 | } | |
132 | .nospec_return_table : { | |
133 | __nospec_return_start = . ; | |
134 | *(.s390_return*) | |
135 | __nospec_return_end = . ; | |
136 | } | |
137 | ||
d1b52a43 VG |
138 | BOOT_DATA |
139 | ||
92e6ecf3 CB |
140 | /* early.c uses stsi, which requires page aligned data. */ |
141 | . = ALIGN(PAGE_SIZE); | |
04a95f6d | 142 | INIT_DATA_SECTION(0x100) |
e16af09d | 143 | |
0415b00d | 144 | PERCPU_SECTION(0x100) |
805bc0bc GS |
145 | |
146 | .dynsym ALIGN(8) : { | |
147 | __dynsym_start = .; | |
148 | *(.dynsym) | |
149 | __dynsym_end = .; | |
150 | } | |
151 | .rela.dyn ALIGN(8) : { | |
152 | __rela_dyn_start = .; | |
153 | *(.rela*) | |
154 | __rela_dyn_end = .; | |
155 | } | |
156 | ||
52480ee5 | 157 | . = ALIGN(PAGE_SIZE); |
e16af09d SR |
158 | __init_end = .; /* freed after init ends here */ |
159 | ||
0ccb32c9 | 160 | BSS_SECTION(PAGE_SIZE, 4 * PAGE_SIZE, PAGE_SIZE) |
e16af09d SR |
161 | |
162 | _end = . ; | |
163 | ||
369f91c3 VG |
164 | /* |
165 | * uncompressed image info used by the decompressor | |
166 | * it should match struct vmlinux_info | |
167 | */ | |
5a2e1853 | 168 | .vmlinux.info 0 (INFO) : { |
d1b52a43 VG |
169 | QUAD(_stext) /* default_lma */ |
170 | QUAD(startup_continue) /* entry */ | |
171 | QUAD(__bss_start - _stext) /* image_size */ | |
172 | QUAD(__bss_stop - __bss_start) /* bss_size */ | |
173 | QUAD(__boot_data_start) /* bootdata_off */ | |
174 | QUAD(__boot_data_end - __boot_data_start) /* bootdata_size */ | |
bf9921a9 GS |
175 | QUAD(__boot_data_preserved_start) /* bootdata_preserved_off */ |
176 | QUAD(__boot_data_preserved_end - | |
177 | __boot_data_preserved_start) /* bootdata_preserved_size */ | |
805bc0bc GS |
178 | QUAD(__dynsym_start) /* dynsym_start */ |
179 | QUAD(__rela_dyn_start) /* rela_dyn_start */ | |
180 | QUAD(__rela_dyn_end) /* rela_dyn_end */ | |
5a2e1853 | 181 | } :NONE |
369f91c3 | 182 | |
e16af09d SR |
183 | /* Debugging sections. */ |
184 | STABS_DEBUG | |
185 | DWARF_DEBUG | |
023bf6f1 TH |
186 | |
187 | /* Sections to be discarded */ | |
188 | DISCARDS | |
bc3703f2 HB |
189 | /DISCARD/ : { |
190 | *(.eh_frame) | |
191 | } | |
1da177e4 | 192 | } |