Commit | Line | Data |
---|---|---|
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 | 17 | #define STRICT_ALIGN_SIZE (1 << CONFIG_DATA_SHIFT) |
d924cc3f | 18 | |
e19e4ab4 ME |
19 | ENTRY(_stext) |
20 | ||
c69cccc9 | 21 | PHDRS { |
af0f3e9e | 22 | text PT_LOAD FLAGS(7); /* RWX */ |
ec556271 | 23 | note PT_NOTE FLAGS(0); |
c69cccc9 SB |
24 | } |
25 | ||
cabb5587 SR |
26 | #ifdef CONFIG_PPC64 |
27 | OUTPUT_ARCH(powerpc:common64) | |
28 | jiffies = jiffies_64; | |
29 | #else | |
14cf11af PM |
30 | OUTPUT_ARCH(powerpc:common) |
31 | jiffies = jiffies_64 + 4; | |
cabb5587 | 32 | #endif |
14cf11af PM |
33 | SECTIONS |
34 | { | |
e8222502 | 35 | . = KERNELBASE; |
14cf11af | 36 | |
e8222502 BH |
37 | /* |
38 | * Text, read only data and other permanent read-only sections | |
39 | */ | |
40 | ||
57f26649 NP |
41 | _text = .; |
42 | _stext = .; | |
43 | ||
44 | /* | |
45 | * Head text. | |
46 | * This needs to be in its own output section to avoid ld placing | |
47 | * branch trampoline stubs randomly throughout the fixed sections, | |
48 | * which it will do (even if the branch comes from another section) | |
49 | * in order to optimize stub generation. | |
50 | */ | |
51 | .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { | |
52 | #ifdef CONFIG_PPC64 | |
53 | KEEP(*(.head.text.first_256B)); | |
54 | #ifdef CONFIG_PPC_BOOK3E | |
57f26649 NP |
55 | #else |
56 | KEEP(*(.head.text.real_vectors)); | |
57 | *(.head.text.real_trampolines); | |
58 | KEEP(*(.head.text.virt_vectors)); | |
59 | *(.head.text.virt_trampolines); | |
60 | # if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) | |
61 | KEEP(*(.head.data.fwnmi_page)); | |
57f26649 NP |
62 | # endif |
63 | #endif | |
57f26649 NP |
64 | #else /* !CONFIG_PPC64 */ |
65 | HEAD_TEXT | |
66 | #endif | |
af0f3e9e | 67 | } :text |
57f26649 | 68 | |
7aa5b018 NR |
69 | __head_end = .; |
70 | ||
dadc4a1b NP |
71 | #ifdef CONFIG_PPC64 |
72 | /* | |
a652758a | 73 | * ALIGN(0) overrides the default output section alignment because |
dadc4a1b NP |
74 | * this needs to start right after .head.text in order for fixed |
75 | * section placement to work. | |
76 | */ | |
a652758a | 77 | .text ALIGN(0) : AT(ADDR(.text) - LOAD_OFFSET) { |
951eedeb | 78 | #ifdef CONFIG_LD_HEAD_STUB_CATCH |
4c1d9bb0 | 79 | KEEP(*(.linker_stub_catch)); |
951eedeb NP |
80 | . = . ; |
81 | #endif | |
82 | ||
dadc4a1b | 83 | #else |
366234f6 | 84 | .text : AT(ADDR(.text) - LOAD_OFFSET) { |
748a7683 | 85 | ALIGN_FUNCTION(); |
dadc4a1b | 86 | #endif |
13beadd9 | 87 | /* careful! __ftr_alt_* sections need to be close to .text */ |
3ce47d95 | 88 | *(.text.hot .text.hot.* TEXT_MAIN .text.fixup .text.unlikely .text.unlikely.* .fixup __ftr_alt_* .ref.text); |
67361cf8 NR |
89 | #ifdef CONFIG_PPC64 |
90 | *(.tramp.ftrace.text); | |
91 | #endif | |
65538966 | 92 | NOINSTR_TEXT |
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 | |
a0591b60 | 119 | . = ALIGN(PAGE_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 | ||
9a32a7e7 NP |
134 | . = ALIGN(8); |
135 | __uaccess_flush_fixup : AT(ADDR(__uaccess_flush_fixup) - LOAD_OFFSET) { | |
136 | __start___uaccess_flush_fixup = .; | |
137 | *(__uaccess_flush_fixup) | |
138 | __stop___uaccess_flush_fixup = .; | |
139 | } | |
140 | ||
f7964378 NP |
141 | . = ALIGN(8); |
142 | __entry_flush_fixup : AT(ADDR(__entry_flush_fixup) - LOAD_OFFSET) { | |
143 | __start___entry_flush_fixup = .; | |
144 | *(__entry_flush_fixup) | |
145 | __stop___entry_flush_fixup = .; | |
146 | } | |
147 | ||
a048a07d NP |
148 | . = ALIGN(8); |
149 | __stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) { | |
150 | __start___stf_exit_barrier_fixup = .; | |
151 | *(__stf_exit_barrier_fixup) | |
152 | __stop___stf_exit_barrier_fixup = .; | |
153 | } | |
154 | ||
aa8a5e00 ME |
155 | . = ALIGN(8); |
156 | __rfi_flush_fixup : AT(ADDR(__rfi_flush_fixup) - LOAD_OFFSET) { | |
157 | __start___rfi_flush_fixup = .; | |
158 | *(__rfi_flush_fixup) | |
159 | __stop___rfi_flush_fixup = .; | |
160 | } | |
179ab1cb | 161 | #endif /* CONFIG_PPC64 */ |
2eea7f06 | 162 | |
179ab1cb | 163 | #ifdef CONFIG_PPC_BARRIER_NOSPEC |
2eea7f06 MS |
164 | . = ALIGN(8); |
165 | __spec_barrier_fixup : AT(ADDR(__spec_barrier_fixup) - LOAD_OFFSET) { | |
166 | __start___barrier_nospec_fixup = .; | |
167 | *(__barrier_nospec_fixup) | |
168 | __stop___barrier_nospec_fixup = .; | |
169 | } | |
179ab1cb | 170 | #endif /* CONFIG_PPC_BARRIER_NOSPEC */ |
aa8a5e00 | 171 | |
76a5eaa3 DC |
172 | #ifdef CONFIG_PPC_FSL_BOOK3E |
173 | . = ALIGN(8); | |
174 | __spec_btb_flush_fixup : AT(ADDR(__spec_btb_flush_fixup) - LOAD_OFFSET) { | |
175 | __start__btb_flush_fixup = .; | |
176 | *(__btb_flush_fixup) | |
177 | __stop__btb_flush_fixup = .; | |
178 | } | |
179 | #endif | |
14cf11af | 180 | |
e8222502 BH |
181 | /* |
182 | * Init sections discarded at runtime | |
183 | */ | |
d924cc3f | 184 | . = ALIGN(STRICT_ALIGN_SIZE); |
e8222502 | 185 | __init_begin = .; |
67361cf8 NR |
186 | . = ALIGN(PAGE_SIZE); |
187 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { | |
188 | _sinittext = .; | |
189 | INIT_TEXT | |
2225a8dd AM |
190 | |
191 | /* | |
192 | *.init.text might be RO so we must ensure this section ends on | |
193 | * a page boundary. | |
194 | */ | |
195 | . = ALIGN(PAGE_SIZE); | |
67361cf8 NR |
196 | _einittext = .; |
197 | #ifdef CONFIG_PPC64 | |
198 | *(.tramp.ftrace.init); | |
199 | #endif | |
af0f3e9e | 200 | } :text |
e8222502 BH |
201 | |
202 | /* .exit.text is discarded at runtime, not link time, | |
203 | * to deal with references from __bug_table | |
204 | */ | |
366234f6 | 205 | .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { |
01ba2bdc SR |
206 | EXIT_TEXT |
207 | } | |
e8222502 | 208 | |
2225a8dd AM |
209 | . = ALIGN(PAGE_SIZE); |
210 | ||
fdcfeaba | 211 | INIT_DATA_SECTION(16) |
e8222502 | 212 | |
e8222502 | 213 | . = ALIGN(8); |
366234f6 | 214 | __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) { |
cabb5587 | 215 | __start___ftr_fixup = .; |
4c1d9bb0 | 216 | KEEP(*(__ftr_fixup)) |
cabb5587 SR |
217 | __stop___ftr_fixup = .; |
218 | } | |
2d1b2027 | 219 | . = ALIGN(8); |
7c03d653 BH |
220 | __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) { |
221 | __start___mmu_ftr_fixup = .; | |
4c1d9bb0 | 222 | KEEP(*(__mmu_ftr_fixup)) |
7c03d653 BH |
223 | __stop___mmu_ftr_fixup = .; |
224 | } | |
225 | . = ALIGN(8); | |
2d1b2027 KG |
226 | __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) { |
227 | __start___lwsync_fixup = .; | |
4c1d9bb0 | 228 | KEEP(*(__lwsync_fixup)) |
2d1b2027 KG |
229 | __stop___lwsync_fixup = .; |
230 | } | |
3f639ee8 SR |
231 | #ifdef CONFIG_PPC64 |
232 | . = ALIGN(8); | |
366234f6 | 233 | __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) { |
3f639ee8 | 234 | __start___fw_ftr_fixup = .; |
4c1d9bb0 | 235 | KEEP(*(__fw_ftr_fixup)) |
3f639ee8 SR |
236 | __stop___fw_ftr_fixup = .; |
237 | } | |
238 | #endif | |
62bef288 | 239 | |
0415b00d | 240 | PERCPU_SECTION(L1_CACHE_BYTES) |
14cf11af | 241 | |
e8222502 | 242 | . = ALIGN(8); |
366234f6 | 243 | .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) { |
e8222502 | 244 | __machine_desc_start = . ; |
4c1d9bb0 | 245 | KEEP(*(.machine.desc)) |
e8222502 BH |
246 | __machine_desc_end = . ; |
247 | } | |
2a4b9c5a | 248 | #ifdef CONFIG_RELOCATABLE |
549e8152 | 249 | . = ALIGN(8); |
9c5f7d39 SP |
250 | .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) |
251 | { | |
27d11496 | 252 | #ifdef CONFIG_PPC32 |
9c5f7d39 SP |
253 | __dynamic_symtab = .; |
254 | #endif | |
255 | *(.dynsym) | |
256 | } | |
549e8152 PM |
257 | .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) } |
258 | .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET) | |
259 | { | |
260 | __dynamic_start = .; | |
261 | *(.dynamic) | |
262 | } | |
263 | .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) } | |
ead98360 | 264 | .gnu.hash : AT(ADDR(.gnu.hash) - LOAD_OFFSET) { *(.gnu.hash) } |
549e8152 PM |
265 | .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) } |
266 | .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET) | |
267 | { | |
268 | __rela_dyn_start = .; | |
269 | *(.rela*) | |
270 | } | |
2a4b9c5a | 271 | #endif |
4c812318 SR |
272 | /* .exit.data is discarded at runtime, not link time, |
273 | * to deal with references from .exit.text | |
274 | */ | |
275 | .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { | |
276 | EXIT_DATA | |
277 | } | |
e8222502 BH |
278 | |
279 | /* freed after init ends here */ | |
280 | . = ALIGN(PAGE_SIZE); | |
281 | __init_end = .; | |
282 | ||
283 | /* | |
284 | * And now the various read/write data | |
285 | */ | |
286 | ||
287 | . = ALIGN(PAGE_SIZE); | |
288 | _sdata = .; | |
14cf11af | 289 | |
cabb5587 | 290 | #ifdef CONFIG_PPC32 |
366234f6 | 291 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
ca967258 | 292 | DATA_DATA |
beba24ac MM |
293 | #ifdef CONFIG_UBSAN |
294 | *(.data..Lubsan_data*) | |
295 | *(.data..Lubsan_type*) | |
296 | #endif | |
a1072607 | 297 | *(.data.rel*) |
4c1d9bb0 | 298 | *(SDATA_MAIN) |
83a092cf | 299 | *(.sdata2) |
e8222502 | 300 | *(.got.plt) *(.got) |
83a092cf | 301 | *(.plt) |
98ecc676 | 302 | *(.branch_lt) |
e8222502 | 303 | } |
cabb5587 | 304 | #else |
366234f6 | 305 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
3ae0aa9f | 306 | DATA_DATA |
d0a3ac54 KC |
307 | #ifdef CONFIG_UBSAN |
308 | *(.data..Lubsan_data*) | |
309 | *(.data..Lubsan_type*) | |
310 | #endif | |
3ae0aa9f MD |
311 | *(.data.rel*) |
312 | *(.toc1) | |
e8222502 BH |
313 | *(.branch_lt) |
314 | } | |
14cf11af | 315 | |
366234f6 | 316 | .opd : AT(ADDR(.opd) - LOAD_OFFSET) { |
5633e85b | 317 | __start_opd = .; |
4c1d9bb0 | 318 | KEEP(*(.opd)) |
5633e85b | 319 | __end_opd = .; |
e8222502 BH |
320 | } |
321 | ||
5e95235c | 322 | . = ALIGN(256); |
366234f6 | 323 | .got : AT(ADDR(.got) - LOAD_OFFSET) { |
e8222502 | 324 | __toc_start = .; |
5ac47f7a AB |
325 | #ifndef CONFIG_RELOCATABLE |
326 | __prom_init_toc_start = .; | |
327 | arch/powerpc/kernel/prom_init.o*(.toc .got) | |
328 | __prom_init_toc_end = .; | |
329 | #endif | |
e8222502 BH |
330 | *(.got) |
331 | *(.toc) | |
332 | } | |
cabb5587 | 333 | #endif |
14cf11af | 334 | |
e8222502 | 335 | /* The initial task and kernel stack */ |
63289e7d | 336 | INIT_TASK_DATA_SECTION(THREAD_ALIGN) |
14cf11af | 337 | |
75b13483 | 338 | .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) { |
62bef288 | 339 | PAGE_ALIGNED_DATA(PAGE_SIZE) |
e8222502 | 340 | } |
14cf11af | 341 | |
4af57b78 | 342 | .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) { |
62bef288 | 343 | CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES) |
e8222502 | 344 | } |
14cf11af | 345 | |
54cb27a7 | 346 | .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) { |
62bef288 | 347 | READ_MOSTLY_DATA(L1_CACHE_BYTES) |
bd67fcf9 TB |
348 | } |
349 | ||
5be2a213 | 350 | . = ALIGN(PAGE_SIZE); |
366234f6 | 351 | .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { |
62bef288 | 352 | NOSAVE_DATA |
e8222502 | 353 | } |
4a288563 | 354 | |
b5effd38 PZ |
355 | BUG_TABLE |
356 | ||
903444e4 ME |
357 | . = ALIGN(PAGE_SIZE); |
358 | _edata = .; | |
359 | PROVIDE32 (edata = .); | |
360 | ||
e8222502 BH |
361 | /* |
362 | * And finally the bss | |
363 | */ | |
364 | ||
62bef288 | 365 | BSS_SECTION(0, 0, 0) |
14cf11af | 366 | |
e8222502 BH |
367 | . = ALIGN(PAGE_SIZE); |
368 | _end = . ; | |
369 | PROVIDE32 (end = .); | |
023bf6f1 | 370 | |
83a092cf | 371 | STABS_DEBUG |
83a092cf | 372 | DWARF_DEBUG |
c604abc3 | 373 | ELF_DETAILS |
83a092cf | 374 | |
023bf6f1 | 375 | DISCARDS |
83a092cf NP |
376 | /DISCARD/ : { |
377 | *(*.EMB.apuinfo) | |
378 | *(.glink .iplt .plt .rela* .comment) | |
379 | *(.gnu.version*) | |
380 | *(.gnu.attributes) | |
381 | *(.eh_frame) | |
382 | } | |
14cf11af | 383 | } |