Commit | Line | Data |
---|---|---|
c51e3a41 | 1 | #ifdef CONFIG_PPC64 |
e8222502 | 2 | #define PROVIDE32(x) PROVIDE(__unused__##x) |
c51e3a41 | 3 | #else |
e8222502 | 4 | #define PROVIDE32(x) PROVIDE(x) |
c51e3a41 | 5 | #endif |
4846c5de | 6 | #include <asm/page.h> |
14cf11af | 7 | #include <asm-generic/vmlinux.lds.h> |
bd67fcf9 | 8 | #include <asm/cache.h> |
62bef288 | 9 | #include <asm/thread_info.h> |
14cf11af | 10 | |
e19e4ab4 ME |
11 | ENTRY(_stext) |
12 | ||
c69cccc9 SB |
13 | PHDRS { |
14 | kernel PT_LOAD FLAGS(7); /* RWX */ | |
15 | notes PT_NOTE FLAGS(0); | |
16 | dummy PT_NOTE FLAGS(0); | |
17 | ||
18 | /* binutils < 2.18 has a bug that makes it misbehave when taking an | |
19 | ELF file with all segments at load address 0 as input. This | |
20 | happens when running "strip" on vmlinux, because of the AT() magic | |
21 | in this linker script. People using GCC >= 4.2 won't run into | |
22 | this problem, because the "build-id" support will put some data | |
23 | into the "notes" segment (at a non-zero load address). | |
24 | ||
25 | To work around this, we force some data into both the "dummy" | |
26 | segment and the kernel segment, so the dummy segment will get a | |
27 | non-zero load address. It's not enough to always create the | |
28 | "notes" segment, since if nothing gets assigned to it, its load | |
29 | address will be zero. */ | |
30 | } | |
31 | ||
cabb5587 SR |
32 | #ifdef CONFIG_PPC64 |
33 | OUTPUT_ARCH(powerpc:common64) | |
34 | jiffies = jiffies_64; | |
35 | #else | |
14cf11af PM |
36 | OUTPUT_ARCH(powerpc:common) |
37 | jiffies = jiffies_64 + 4; | |
cabb5587 | 38 | #endif |
14cf11af PM |
39 | SECTIONS |
40 | { | |
e8222502 | 41 | . = KERNELBASE; |
14cf11af | 42 | |
e8222502 BH |
43 | /* |
44 | * Text, read only data and other permanent read-only sections | |
45 | */ | |
46 | ||
57f26649 NP |
47 | _text = .; |
48 | _stext = .; | |
49 | ||
50 | /* | |
51 | * Head text. | |
52 | * This needs to be in its own output section to avoid ld placing | |
53 | * branch trampoline stubs randomly throughout the fixed sections, | |
54 | * which it will do (even if the branch comes from another section) | |
55 | * in order to optimize stub generation. | |
56 | */ | |
57 | .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { | |
58 | #ifdef CONFIG_PPC64 | |
59 | KEEP(*(.head.text.first_256B)); | |
60 | #ifdef CONFIG_PPC_BOOK3E | |
57f26649 NP |
61 | #else |
62 | KEEP(*(.head.text.real_vectors)); | |
63 | *(.head.text.real_trampolines); | |
64 | KEEP(*(.head.text.virt_vectors)); | |
65 | *(.head.text.virt_trampolines); | |
66 | # if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) | |
67 | KEEP(*(.head.data.fwnmi_page)); | |
57f26649 NP |
68 | # endif |
69 | #endif | |
57f26649 NP |
70 | #else /* !CONFIG_PPC64 */ |
71 | HEAD_TEXT | |
72 | #endif | |
73 | } :kernel | |
74 | ||
7aa5b018 NR |
75 | __head_end = .; |
76 | ||
dadc4a1b NP |
77 | #ifdef CONFIG_PPC64 |
78 | /* | |
79 | * BLOCK(0) overrides the default output section alignment because | |
80 | * this needs to start right after .head.text in order for fixed | |
81 | * section placement to work. | |
82 | */ | |
83 | .text BLOCK(0) : AT(ADDR(.text) - LOAD_OFFSET) { | |
951eedeb NP |
84 | #ifdef CONFIG_LD_HEAD_STUB_CATCH |
85 | *(.linker_stub_catch); | |
86 | . = . ; | |
87 | #endif | |
88 | ||
dadc4a1b | 89 | #else |
366234f6 | 90 | .text : AT(ADDR(.text) - LOAD_OFFSET) { |
748a7683 | 91 | ALIGN_FUNCTION(); |
dadc4a1b | 92 | #endif |
13beadd9 TA |
93 | /* careful! __ftr_alt_* sections need to be close to .text */ |
94 | *(.text .fixup __ftr_alt_* .ref.text) | |
e8222502 | 95 | SCHED_TEXT |
6727ad9e | 96 | CPUIDLE_TEXT |
e8222502 BH |
97 | LOCK_TEXT |
98 | KPROBES_TEXT | |
6794c782 | 99 | IRQENTRY_TEXT |
be7635e7 | 100 | SOFTIRQENTRY_TEXT |
e8c68825 NP |
101 | /* |
102 | * -Os builds call FP save/restore functions. The powerpc64 | |
103 | * linker generates those on demand in the .sfpr section. | |
104 | * .sfpr gets placed at the beginning of a group of input | |
105 | * sections, which can break start-of-text offset if it is | |
106 | * included with the main text sections, so put it by itself. | |
107 | */ | |
108 | *(.sfpr); | |
7de3b27b ME |
109 | MEM_KEEP(init.text) |
110 | MEM_KEEP(exit.text) | |
14cf11af | 111 | |
e8222502 BH |
112 | #ifdef CONFIG_PPC32 |
113 | *(.got1) | |
114 | __got2_start = .; | |
115 | *(.got2) | |
116 | __got2_end = .; | |
117 | #endif /* CONFIG_PPC32 */ | |
118 | ||
c69cccc9 | 119 | } :kernel |
e8222502 | 120 | |
303996da SR |
121 | . = ALIGN(PAGE_SIZE); |
122 | _etext = .; | |
123 | PROVIDE32 (etext = .); | |
124 | ||
e8222502 BH |
125 | /* Read-only data */ |
126 | RODATA | |
127 | ||
62bef288 | 128 | EXCEPTION_TABLE(0) |
14cf11af | 129 | |
c69cccc9 SB |
130 | NOTES :kernel :notes |
131 | ||
132 | /* The dummy segment contents for the bug workaround mentioned above | |
133 | near PHDRS. */ | |
80c60bf9 | 134 | .dummy : AT(ADDR(.dummy) - LOAD_OFFSET) { |
e16459c6 MM |
135 | LONG(0) |
136 | LONG(0) | |
137 | LONG(0) | |
c69cccc9 | 138 | } :kernel :dummy |
8fb775ee | 139 | |
e8222502 BH |
140 | /* |
141 | * Init sections discarded at runtime | |
142 | */ | |
143 | . = ALIGN(PAGE_SIZE); | |
144 | __init_begin = .; | |
62bef288 | 145 | INIT_TEXT_SECTION(PAGE_SIZE) :kernel |
e8222502 BH |
146 | |
147 | /* .exit.text is discarded at runtime, not link time, | |
148 | * to deal with references from __bug_table | |
149 | */ | |
366234f6 | 150 | .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { |
01ba2bdc SR |
151 | EXIT_TEXT |
152 | } | |
e8222502 | 153 | |
366234f6 | 154 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { |
01ba2bdc | 155 | INIT_DATA |
e8222502 BH |
156 | __vtop_table_begin = .; |
157 | *(.vtop_fixup); | |
158 | __vtop_table_end = .; | |
159 | __ptov_table_begin = .; | |
160 | *(.ptov_fixup); | |
161 | __ptov_table_end = .; | |
162 | } | |
163 | ||
366234f6 | 164 | .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { |
62bef288 | 165 | INIT_SETUP(16) |
e8222502 BH |
166 | } |
167 | ||
366234f6 | 168 | .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) { |
62bef288 TA |
169 | INIT_CALLS |
170 | } | |
e8222502 | 171 | |
366234f6 | 172 | .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) { |
62bef288 | 173 | CON_INITCALL |
e8222502 BH |
174 | } |
175 | ||
176 | SECURITY_INIT | |
177 | ||
178 | . = ALIGN(8); | |
366234f6 | 179 | __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) { |
cabb5587 SR |
180 | __start___ftr_fixup = .; |
181 | *(__ftr_fixup) | |
182 | __stop___ftr_fixup = .; | |
183 | } | |
2d1b2027 | 184 | . = ALIGN(8); |
7c03d653 BH |
185 | __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) { |
186 | __start___mmu_ftr_fixup = .; | |
187 | *(__mmu_ftr_fixup) | |
188 | __stop___mmu_ftr_fixup = .; | |
189 | } | |
190 | . = ALIGN(8); | |
2d1b2027 KG |
191 | __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) { |
192 | __start___lwsync_fixup = .; | |
193 | *(__lwsync_fixup) | |
194 | __stop___lwsync_fixup = .; | |
195 | } | |
3f639ee8 SR |
196 | #ifdef CONFIG_PPC64 |
197 | . = ALIGN(8); | |
366234f6 | 198 | __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) { |
3f639ee8 SR |
199 | __start___fw_ftr_fixup = .; |
200 | *(__fw_ftr_fixup) | |
201 | __stop___fw_ftr_fixup = .; | |
202 | } | |
203 | #endif | |
366234f6 | 204 | .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { |
62bef288 | 205 | INIT_RAM_FS |
e8222502 | 206 | } |
62bef288 | 207 | |
0415b00d | 208 | PERCPU_SECTION(L1_CACHE_BYTES) |
14cf11af | 209 | |
e8222502 | 210 | . = ALIGN(8); |
366234f6 | 211 | .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) { |
e8222502 BH |
212 | __machine_desc_start = . ; |
213 | *(.machine.desc) | |
214 | __machine_desc_end = . ; | |
215 | } | |
2a4b9c5a | 216 | #ifdef CONFIG_RELOCATABLE |
549e8152 | 217 | . = ALIGN(8); |
9c5f7d39 SP |
218 | .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) |
219 | { | |
27d11496 | 220 | #ifdef CONFIG_PPC32 |
9c5f7d39 SP |
221 | __dynamic_symtab = .; |
222 | #endif | |
223 | *(.dynsym) | |
224 | } | |
549e8152 PM |
225 | .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) } |
226 | .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET) | |
227 | { | |
228 | __dynamic_start = .; | |
229 | *(.dynamic) | |
230 | } | |
231 | .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) } | |
232 | .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) } | |
233 | .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET) | |
234 | { | |
235 | __rela_dyn_start = .; | |
236 | *(.rela*) | |
237 | } | |
2a4b9c5a | 238 | #endif |
4c812318 SR |
239 | /* .exit.data is discarded at runtime, not link time, |
240 | * to deal with references from .exit.text | |
241 | */ | |
242 | .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { | |
243 | EXIT_DATA | |
244 | } | |
e8222502 BH |
245 | |
246 | /* freed after init ends here */ | |
247 | . = ALIGN(PAGE_SIZE); | |
248 | __init_end = .; | |
249 | ||
250 | /* | |
251 | * And now the various read/write data | |
252 | */ | |
253 | ||
254 | . = ALIGN(PAGE_SIZE); | |
255 | _sdata = .; | |
14cf11af | 256 | |
cabb5587 | 257 | #ifdef CONFIG_PPC32 |
366234f6 | 258 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
ca967258 | 259 | DATA_DATA |
e8222502 BH |
260 | *(.sdata) |
261 | *(.got.plt) *(.got) | |
262 | } | |
cabb5587 | 263 | #else |
366234f6 | 264 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
3ae0aa9f MD |
265 | DATA_DATA |
266 | *(.data.rel*) | |
267 | *(.toc1) | |
e8222502 BH |
268 | *(.branch_lt) |
269 | } | |
14cf11af | 270 | |
366234f6 | 271 | .opd : AT(ADDR(.opd) - LOAD_OFFSET) { |
e8222502 BH |
272 | *(.opd) |
273 | } | |
274 | ||
5e95235c | 275 | . = ALIGN(256); |
366234f6 | 276 | .got : AT(ADDR(.got) - LOAD_OFFSET) { |
e8222502 | 277 | __toc_start = .; |
5ac47f7a AB |
278 | #ifndef CONFIG_RELOCATABLE |
279 | __prom_init_toc_start = .; | |
280 | arch/powerpc/kernel/prom_init.o*(.toc .got) | |
281 | __prom_init_toc_end = .; | |
282 | #endif | |
e8222502 BH |
283 | *(.got) |
284 | *(.toc) | |
285 | } | |
cabb5587 | 286 | #endif |
14cf11af | 287 | |
e8222502 | 288 | /* The initial task and kernel stack */ |
2af7687f | 289 | INIT_TASK_DATA_SECTION(THREAD_SIZE) |
14cf11af | 290 | |
75b13483 | 291 | .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) { |
62bef288 | 292 | PAGE_ALIGNED_DATA(PAGE_SIZE) |
e8222502 | 293 | } |
14cf11af | 294 | |
4af57b78 | 295 | .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) { |
62bef288 | 296 | CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES) |
e8222502 | 297 | } |
14cf11af | 298 | |
54cb27a7 | 299 | .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) { |
62bef288 | 300 | READ_MOSTLY_DATA(L1_CACHE_BYTES) |
bd67fcf9 TB |
301 | } |
302 | ||
5be2a213 | 303 | . = ALIGN(PAGE_SIZE); |
366234f6 | 304 | .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { |
62bef288 | 305 | NOSAVE_DATA |
e8222502 | 306 | } |
4a288563 | 307 | |
b5effd38 PZ |
308 | BUG_TABLE |
309 | ||
903444e4 ME |
310 | . = ALIGN(PAGE_SIZE); |
311 | _edata = .; | |
312 | PROVIDE32 (edata = .); | |
313 | ||
e8222502 BH |
314 | /* |
315 | * And finally the bss | |
316 | */ | |
317 | ||
62bef288 | 318 | BSS_SECTION(0, 0, 0) |
14cf11af | 319 | |
e8222502 BH |
320 | . = ALIGN(PAGE_SIZE); |
321 | _end = . ; | |
322 | PROVIDE32 (end = .); | |
023bf6f1 TH |
323 | |
324 | /* Sections to be discarded. */ | |
325 | DISCARDS | |
14cf11af | 326 | } |