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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
c51e3a41 | 2 | #ifdef CONFIG_PPC64 |
e8222502 | 3 | #define PROVIDE32(x) PROVIDE(__unused__##x) |
c51e3a41 | 4 | #else |
e8222502 | 5 | #define PROVIDE32(x) PROVIDE(x) |
c51e3a41 | 6 | #endif |
5f69e388 BH |
7 | |
8 | #define BSS_FIRST_SECTIONS *(.bss.prominit) | |
441110a5 | 9 | #define EMITS_PT_NOTE |
4e9e559a | 10 | #define RO_EXCEPTION_TABLE_ALIGN 0 |
5f69e388 | 11 | |
4846c5de | 12 | #include <asm/page.h> |
14cf11af | 13 | #include <asm-generic/vmlinux.lds.h> |
bd67fcf9 | 14 | #include <asm/cache.h> |
62bef288 | 15 | #include <asm/thread_info.h> |
14cf11af | 16 | |
166d97d9 CL |
17 | #define STRICT_ALIGN_SIZE (1 << CONFIG_DATA_SHIFT) |
18 | #define ETEXT_ALIGN_SIZE (1 << CONFIG_ETEXT_SHIFT) | |
d924cc3f | 19 | |
e19e4ab4 ME |
20 | ENTRY(_stext) |
21 | ||
c69cccc9 | 22 | PHDRS { |
af0f3e9e | 23 | text PT_LOAD FLAGS(7); /* RWX */ |
ec556271 | 24 | note PT_NOTE FLAGS(0); |
c69cccc9 SB |
25 | } |
26 | ||
cabb5587 SR |
27 | #ifdef CONFIG_PPC64 |
28 | OUTPUT_ARCH(powerpc:common64) | |
29 | jiffies = jiffies_64; | |
30 | #else | |
14cf11af PM |
31 | OUTPUT_ARCH(powerpc:common) |
32 | jiffies = jiffies_64 + 4; | |
cabb5587 | 33 | #endif |
14cf11af PM |
34 | SECTIONS |
35 | { | |
e8222502 | 36 | . = KERNELBASE; |
14cf11af | 37 | |
e8222502 BH |
38 | /* |
39 | * Text, read only data and other permanent read-only sections | |
40 | */ | |
41 | ||
57f26649 NP |
42 | _text = .; |
43 | _stext = .; | |
44 | ||
45 | /* | |
46 | * Head text. | |
47 | * This needs to be in its own output section to avoid ld placing | |
48 | * branch trampoline stubs randomly throughout the fixed sections, | |
49 | * which it will do (even if the branch comes from another section) | |
50 | * in order to optimize stub generation. | |
51 | */ | |
52 | .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { | |
53 | #ifdef CONFIG_PPC64 | |
54 | KEEP(*(.head.text.first_256B)); | |
55 | #ifdef CONFIG_PPC_BOOK3E | |
57f26649 NP |
56 | #else |
57 | KEEP(*(.head.text.real_vectors)); | |
58 | *(.head.text.real_trampolines); | |
59 | KEEP(*(.head.text.virt_vectors)); | |
60 | *(.head.text.virt_trampolines); | |
61 | # if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) | |
62 | KEEP(*(.head.data.fwnmi_page)); | |
57f26649 NP |
63 | # endif |
64 | #endif | |
57f26649 NP |
65 | #else /* !CONFIG_PPC64 */ |
66 | HEAD_TEXT | |
67 | #endif | |
af0f3e9e | 68 | } :text |
57f26649 | 69 | |
7aa5b018 NR |
70 | __head_end = .; |
71 | ||
dadc4a1b NP |
72 | #ifdef CONFIG_PPC64 |
73 | /* | |
a652758a | 74 | * ALIGN(0) overrides the default output section alignment because |
dadc4a1b NP |
75 | * this needs to start right after .head.text in order for fixed |
76 | * section placement to work. | |
77 | */ | |
a652758a | 78 | .text ALIGN(0) : AT(ADDR(.text) - LOAD_OFFSET) { |
951eedeb | 79 | #ifdef CONFIG_LD_HEAD_STUB_CATCH |
4c1d9bb0 | 80 | KEEP(*(.linker_stub_catch)); |
951eedeb NP |
81 | . = . ; |
82 | #endif | |
83 | ||
dadc4a1b | 84 | #else |
366234f6 | 85 | .text : AT(ADDR(.text) - LOAD_OFFSET) { |
748a7683 | 86 | ALIGN_FUNCTION(); |
dadc4a1b | 87 | #endif |
13beadd9 | 88 | /* careful! __ftr_alt_* sections need to be close to .text */ |
4c1d9bb0 | 89 | *(.text.hot TEXT_MAIN .text.fixup .text.unlikely .fixup __ftr_alt_* .ref.text); |
67361cf8 NR |
90 | #ifdef CONFIG_PPC64 |
91 | *(.tramp.ftrace.text); | |
92 | #endif | |
e8222502 | 93 | SCHED_TEXT |
6727ad9e | 94 | CPUIDLE_TEXT |
e8222502 BH |
95 | LOCK_TEXT |
96 | KPROBES_TEXT | |
6794c782 | 97 | IRQENTRY_TEXT |
be7635e7 | 98 | SOFTIRQENTRY_TEXT |
e8c68825 NP |
99 | /* |
100 | * -Os builds call FP save/restore functions. The powerpc64 | |
101 | * linker generates those on demand in the .sfpr section. | |
102 | * .sfpr gets placed at the beginning of a group of input | |
103 | * sections, which can break start-of-text offset if it is | |
104 | * included with the main text sections, so put it by itself. | |
105 | */ | |
106 | *(.sfpr); | |
7de3b27b ME |
107 | MEM_KEEP(init.text) |
108 | MEM_KEEP(exit.text) | |
14cf11af | 109 | |
e8222502 BH |
110 | #ifdef CONFIG_PPC32 |
111 | *(.got1) | |
112 | __got2_start = .; | |
113 | *(.got2) | |
114 | __got2_end = .; | |
115 | #endif /* CONFIG_PPC32 */ | |
116 | ||
af0f3e9e | 117 | } :text |
e8222502 | 118 | |
166d97d9 | 119 | . = ALIGN(ETEXT_ALIGN_SIZE); |
303996da SR |
120 | _etext = .; |
121 | PROVIDE32 (etext = .); | |
122 | ||
e8222502 | 123 | /* Read-only data */ |
d924cc3f | 124 | RO_DATA(PAGE_SIZE) |
e8222502 | 125 | |
aa8a5e00 | 126 | #ifdef CONFIG_PPC64 |
a048a07d NP |
127 | . = ALIGN(8); |
128 | __stf_entry_barrier_fixup : AT(ADDR(__stf_entry_barrier_fixup) - LOAD_OFFSET) { | |
129 | __start___stf_entry_barrier_fixup = .; | |
130 | *(__stf_entry_barrier_fixup) | |
131 | __stop___stf_entry_barrier_fixup = .; | |
132 | } | |
133 | ||
134 | . = ALIGN(8); | |
135 | __stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) { | |
136 | __start___stf_exit_barrier_fixup = .; | |
137 | *(__stf_exit_barrier_fixup) | |
138 | __stop___stf_exit_barrier_fixup = .; | |
139 | } | |
140 | ||
aa8a5e00 ME |
141 | . = ALIGN(8); |
142 | __rfi_flush_fixup : AT(ADDR(__rfi_flush_fixup) - LOAD_OFFSET) { | |
143 | __start___rfi_flush_fixup = .; | |
144 | *(__rfi_flush_fixup) | |
145 | __stop___rfi_flush_fixup = .; | |
146 | } | |
179ab1cb | 147 | #endif /* CONFIG_PPC64 */ |
2eea7f06 | 148 | |
179ab1cb | 149 | #ifdef CONFIG_PPC_BARRIER_NOSPEC |
2eea7f06 MS |
150 | . = ALIGN(8); |
151 | __spec_barrier_fixup : AT(ADDR(__spec_barrier_fixup) - LOAD_OFFSET) { | |
152 | __start___barrier_nospec_fixup = .; | |
153 | *(__barrier_nospec_fixup) | |
154 | __stop___barrier_nospec_fixup = .; | |
155 | } | |
179ab1cb | 156 | #endif /* CONFIG_PPC_BARRIER_NOSPEC */ |
aa8a5e00 | 157 | |
76a5eaa3 DC |
158 | #ifdef CONFIG_PPC_FSL_BOOK3E |
159 | . = ALIGN(8); | |
160 | __spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) { | |
161 | __start__btb_flush_fixup = .; | |
162 | *(__btb_flush_fixup) | |
163 | __stop__btb_flush_fixup = .; | |
164 | } | |
165 | #endif | |
14cf11af | 166 | |
e8222502 BH |
167 | /* |
168 | * Init sections discarded at runtime | |
169 | */ | |
d924cc3f | 170 | . = ALIGN(STRICT_ALIGN_SIZE); |
e8222502 | 171 | __init_begin = .; |
67361cf8 NR |
172 | . = ALIGN(PAGE_SIZE); |
173 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { | |
174 | _sinittext = .; | |
175 | INIT_TEXT | |
176 | _einittext = .; | |
177 | #ifdef CONFIG_PPC64 | |
178 | *(.tramp.ftrace.init); | |
179 | #endif | |
af0f3e9e | 180 | } :text |
e8222502 BH |
181 | |
182 | /* .exit.text is discarded at runtime, not link time, | |
183 | * to deal with references from __bug_table | |
184 | */ | |
366234f6 | 185 | .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { |
01ba2bdc SR |
186 | EXIT_TEXT |
187 | } | |
e8222502 | 188 | |
366234f6 | 189 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { |
01ba2bdc | 190 | INIT_DATA |
e8222502 BH |
191 | } |
192 | ||
366234f6 | 193 | .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { |
62bef288 | 194 | INIT_SETUP(16) |
e8222502 BH |
195 | } |
196 | ||
366234f6 | 197 | .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) { |
62bef288 TA |
198 | INIT_CALLS |
199 | } | |
e8222502 | 200 | |
366234f6 | 201 | .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) { |
62bef288 | 202 | CON_INITCALL |
e8222502 BH |
203 | } |
204 | ||
e8222502 | 205 | . = ALIGN(8); |
366234f6 | 206 | __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) { |
cabb5587 | 207 | __start___ftr_fixup = .; |
4c1d9bb0 | 208 | KEEP(*(__ftr_fixup)) |
cabb5587 SR |
209 | __stop___ftr_fixup = .; |
210 | } | |
2d1b2027 | 211 | . = ALIGN(8); |
7c03d653 BH |
212 | __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) { |
213 | __start___mmu_ftr_fixup = .; | |
4c1d9bb0 | 214 | KEEP(*(__mmu_ftr_fixup)) |
7c03d653 BH |
215 | __stop___mmu_ftr_fixup = .; |
216 | } | |
217 | . = ALIGN(8); | |
2d1b2027 KG |
218 | __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) { |
219 | __start___lwsync_fixup = .; | |
4c1d9bb0 | 220 | KEEP(*(__lwsync_fixup)) |
2d1b2027 KG |
221 | __stop___lwsync_fixup = .; |
222 | } | |
3f639ee8 SR |
223 | #ifdef CONFIG_PPC64 |
224 | . = ALIGN(8); | |
366234f6 | 225 | __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) { |
3f639ee8 | 226 | __start___fw_ftr_fixup = .; |
4c1d9bb0 | 227 | KEEP(*(__fw_ftr_fixup)) |
3f639ee8 SR |
228 | __stop___fw_ftr_fixup = .; |
229 | } | |
230 | #endif | |
366234f6 | 231 | .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { |
62bef288 | 232 | INIT_RAM_FS |
e8222502 | 233 | } |
62bef288 | 234 | |
0415b00d | 235 | PERCPU_SECTION(L1_CACHE_BYTES) |
14cf11af | 236 | |
e8222502 | 237 | . = ALIGN(8); |
366234f6 | 238 | .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) { |
e8222502 | 239 | __machine_desc_start = . ; |
4c1d9bb0 | 240 | KEEP(*(.machine.desc)) |
e8222502 BH |
241 | __machine_desc_end = . ; |
242 | } | |
2a4b9c5a | 243 | #ifdef CONFIG_RELOCATABLE |
549e8152 | 244 | . = ALIGN(8); |
9c5f7d39 SP |
245 | .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) |
246 | { | |
27d11496 | 247 | #ifdef CONFIG_PPC32 |
9c5f7d39 SP |
248 | __dynamic_symtab = .; |
249 | #endif | |
250 | *(.dynsym) | |
251 | } | |
549e8152 PM |
252 | .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) } |
253 | .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET) | |
254 | { | |
255 | __dynamic_start = .; | |
256 | *(.dynamic) | |
257 | } | |
258 | .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) } | |
259 | .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) } | |
260 | .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET) | |
261 | { | |
262 | __rela_dyn_start = .; | |
263 | *(.rela*) | |
264 | } | |
2a4b9c5a | 265 | #endif |
4c812318 SR |
266 | /* .exit.data is discarded at runtime, not link time, |
267 | * to deal with references from .exit.text | |
268 | */ | |
269 | .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { | |
270 | EXIT_DATA | |
271 | } | |
e8222502 BH |
272 | |
273 | /* freed after init ends here */ | |
274 | . = ALIGN(PAGE_SIZE); | |
275 | __init_end = .; | |
276 | ||
277 | /* | |
278 | * And now the various read/write data | |
279 | */ | |
280 | ||
281 | . = ALIGN(PAGE_SIZE); | |
282 | _sdata = .; | |
14cf11af | 283 | |
cabb5587 | 284 | #ifdef CONFIG_PPC32 |
366234f6 | 285 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
ca967258 | 286 | DATA_DATA |
beba24ac MM |
287 | #ifdef CONFIG_UBSAN |
288 | *(.data..Lubsan_data*) | |
289 | *(.data..Lubsan_type*) | |
290 | #endif | |
a1072607 | 291 | *(.data.rel*) |
4c1d9bb0 | 292 | *(SDATA_MAIN) |
83a092cf | 293 | *(.sdata2) |
e8222502 | 294 | *(.got.plt) *(.got) |
83a092cf | 295 | *(.plt) |
98ecc676 | 296 | *(.branch_lt) |
e8222502 | 297 | } |
cabb5587 | 298 | #else |
366234f6 | 299 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
3ae0aa9f MD |
300 | DATA_DATA |
301 | *(.data.rel*) | |
302 | *(.toc1) | |
e8222502 BH |
303 | *(.branch_lt) |
304 | } | |
14cf11af | 305 | |
cb0cc635 NR |
306 | #ifdef CONFIG_DEBUG_INFO_BTF |
307 | .BTF : AT(ADDR(.BTF) - LOAD_OFFSET) { | |
308 | *(.BTF) | |
309 | } | |
310 | #endif | |
311 | ||
366234f6 | 312 | .opd : AT(ADDR(.opd) - LOAD_OFFSET) { |
5633e85b | 313 | __start_opd = .; |
4c1d9bb0 | 314 | KEEP(*(.opd)) |
5633e85b | 315 | __end_opd = .; |
e8222502 BH |
316 | } |
317 | ||
5e95235c | 318 | . = ALIGN(256); |
366234f6 | 319 | .got : AT(ADDR(.got) - LOAD_OFFSET) { |
e8222502 | 320 | __toc_start = .; |
5ac47f7a AB |
321 | #ifndef CONFIG_RELOCATABLE |
322 | __prom_init_toc_start = .; | |
323 | arch/powerpc/kernel/prom_init.o*(.toc .got) | |
324 | __prom_init_toc_end = .; | |
325 | #endif | |
e8222502 BH |
326 | *(.got) |
327 | *(.toc) | |
328 | } | |
cabb5587 | 329 | #endif |
14cf11af | 330 | |
e8222502 | 331 | /* The initial task and kernel stack */ |
63289e7d | 332 | INIT_TASK_DATA_SECTION(THREAD_ALIGN) |
14cf11af | 333 | |
75b13483 | 334 | .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) { |
62bef288 | 335 | PAGE_ALIGNED_DATA(PAGE_SIZE) |
e8222502 | 336 | } |
14cf11af | 337 | |
4af57b78 | 338 | .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) { |
62bef288 | 339 | CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES) |
e8222502 | 340 | } |
14cf11af | 341 | |
54cb27a7 | 342 | .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) { |
62bef288 | 343 | READ_MOSTLY_DATA(L1_CACHE_BYTES) |
bd67fcf9 TB |
344 | } |
345 | ||
5be2a213 | 346 | . = ALIGN(PAGE_SIZE); |
366234f6 | 347 | .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { |
62bef288 | 348 | NOSAVE_DATA |
e8222502 | 349 | } |
4a288563 | 350 | |
b5effd38 PZ |
351 | BUG_TABLE |
352 | ||
903444e4 ME |
353 | . = ALIGN(PAGE_SIZE); |
354 | _edata = .; | |
355 | PROVIDE32 (edata = .); | |
356 | ||
e8222502 BH |
357 | /* |
358 | * And finally the bss | |
359 | */ | |
360 | ||
62bef288 | 361 | BSS_SECTION(0, 0, 0) |
14cf11af | 362 | |
e8222502 BH |
363 | . = ALIGN(PAGE_SIZE); |
364 | _end = . ; | |
365 | PROVIDE32 (end = .); | |
023bf6f1 | 366 | |
83a092cf NP |
367 | STABS_DEBUG |
368 | ||
369 | DWARF_DEBUG | |
370 | ||
023bf6f1 | 371 | DISCARDS |
83a092cf NP |
372 | /DISCARD/ : { |
373 | *(*.EMB.apuinfo) | |
374 | *(.glink .iplt .plt .rela* .comment) | |
375 | *(.gnu.version*) | |
376 | *(.gnu.attributes) | |
377 | *(.eh_frame) | |
378 | } | |
14cf11af | 379 | } |