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 | { | |
d4703aef RR |
41 | . = 0; |
42 | reloc_start = .; | |
43 | ||
e8222502 | 44 | . = KERNELBASE; |
14cf11af | 45 | |
e8222502 BH |
46 | /* |
47 | * Text, read only data and other permanent read-only sections | |
48 | */ | |
49 | ||
50 | /* Text and gots */ | |
366234f6 | 51 | .text : AT(ADDR(.text) - LOAD_OFFSET) { |
748a7683 | 52 | ALIGN_FUNCTION(); |
e7039845 | 53 | HEAD_TEXT |
fd593d12 | 54 | _text = .; |
13beadd9 TA |
55 | /* careful! __ftr_alt_* sections need to be close to .text */ |
56 | *(.text .fixup __ftr_alt_* .ref.text) | |
e8222502 BH |
57 | SCHED_TEXT |
58 | LOCK_TEXT | |
59 | KPROBES_TEXT | |
6794c782 | 60 | IRQENTRY_TEXT |
14cf11af | 61 | |
e8222502 BH |
62 | #ifdef CONFIG_PPC32 |
63 | *(.got1) | |
64 | __got2_start = .; | |
65 | *(.got2) | |
66 | __got2_end = .; | |
67 | #endif /* CONFIG_PPC32 */ | |
68 | ||
c69cccc9 | 69 | } :kernel |
e8222502 | 70 | |
303996da SR |
71 | . = ALIGN(PAGE_SIZE); |
72 | _etext = .; | |
73 | PROVIDE32 (etext = .); | |
74 | ||
e8222502 BH |
75 | /* Read-only data */ |
76 | RODATA | |
77 | ||
62bef288 | 78 | EXCEPTION_TABLE(0) |
14cf11af | 79 | |
c69cccc9 SB |
80 | NOTES :kernel :notes |
81 | ||
82 | /* The dummy segment contents for the bug workaround mentioned above | |
83 | near PHDRS. */ | |
80c60bf9 | 84 | .dummy : AT(ADDR(.dummy) - LOAD_OFFSET) { |
e16459c6 MM |
85 | LONG(0) |
86 | LONG(0) | |
87 | LONG(0) | |
c69cccc9 | 88 | } :kernel :dummy |
8fb775ee | 89 | |
e8222502 BH |
90 | /* |
91 | * Init sections discarded at runtime | |
92 | */ | |
93 | . = ALIGN(PAGE_SIZE); | |
94 | __init_begin = .; | |
62bef288 | 95 | INIT_TEXT_SECTION(PAGE_SIZE) :kernel |
e8222502 BH |
96 | |
97 | /* .exit.text is discarded at runtime, not link time, | |
98 | * to deal with references from __bug_table | |
99 | */ | |
366234f6 | 100 | .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { |
01ba2bdc SR |
101 | EXIT_TEXT |
102 | } | |
e8222502 | 103 | |
366234f6 | 104 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { |
01ba2bdc | 105 | INIT_DATA |
e8222502 BH |
106 | __vtop_table_begin = .; |
107 | *(.vtop_fixup); | |
108 | __vtop_table_end = .; | |
109 | __ptov_table_begin = .; | |
110 | *(.ptov_fixup); | |
111 | __ptov_table_end = .; | |
c4e3ea25 SR |
112 | #ifdef CONFIG_PPC_ISERIES |
113 | __dt_strings_start = .; | |
114 | *(.dt_strings); | |
115 | __dt_strings_end = .; | |
116 | #endif | |
e8222502 BH |
117 | } |
118 | ||
366234f6 | 119 | .init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) { |
62bef288 | 120 | INIT_SETUP(16) |
e8222502 BH |
121 | } |
122 | ||
366234f6 | 123 | .initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET) { |
62bef288 TA |
124 | INIT_CALLS |
125 | } | |
e8222502 | 126 | |
366234f6 | 127 | .con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) { |
62bef288 | 128 | CON_INITCALL |
e8222502 BH |
129 | } |
130 | ||
131 | SECURITY_INIT | |
132 | ||
133 | . = ALIGN(8); | |
366234f6 | 134 | __ftr_fixup : AT(ADDR(__ftr_fixup) - LOAD_OFFSET) { |
cabb5587 SR |
135 | __start___ftr_fixup = .; |
136 | *(__ftr_fixup) | |
137 | __stop___ftr_fixup = .; | |
138 | } | |
2d1b2027 | 139 | . = ALIGN(8); |
7c03d653 BH |
140 | __mmu_ftr_fixup : AT(ADDR(__mmu_ftr_fixup) - LOAD_OFFSET) { |
141 | __start___mmu_ftr_fixup = .; | |
142 | *(__mmu_ftr_fixup) | |
143 | __stop___mmu_ftr_fixup = .; | |
144 | } | |
145 | . = ALIGN(8); | |
2d1b2027 KG |
146 | __lwsync_fixup : AT(ADDR(__lwsync_fixup) - LOAD_OFFSET) { |
147 | __start___lwsync_fixup = .; | |
148 | *(__lwsync_fixup) | |
149 | __stop___lwsync_fixup = .; | |
150 | } | |
3f639ee8 SR |
151 | #ifdef CONFIG_PPC64 |
152 | . = ALIGN(8); | |
366234f6 | 153 | __fw_ftr_fixup : AT(ADDR(__fw_ftr_fixup) - LOAD_OFFSET) { |
3f639ee8 SR |
154 | __start___fw_ftr_fixup = .; |
155 | *(__fw_ftr_fixup) | |
156 | __stop___fw_ftr_fixup = .; | |
157 | } | |
158 | #endif | |
366234f6 | 159 | .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { |
62bef288 | 160 | INIT_RAM_FS |
e8222502 | 161 | } |
62bef288 | 162 | |
19390c4d | 163 | PERCPU(PAGE_SIZE) |
14cf11af | 164 | |
e8222502 | 165 | . = ALIGN(8); |
366234f6 | 166 | .machine.desc : AT(ADDR(.machine.desc) - LOAD_OFFSET) { |
e8222502 BH |
167 | __machine_desc_start = . ; |
168 | *(.machine.desc) | |
169 | __machine_desc_end = . ; | |
170 | } | |
2a4b9c5a | 171 | #ifdef CONFIG_RELOCATABLE |
549e8152 PM |
172 | . = ALIGN(8); |
173 | .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) { *(.dynsym) } | |
174 | .dynstr : AT(ADDR(.dynstr) - LOAD_OFFSET) { *(.dynstr) } | |
175 | .dynamic : AT(ADDR(.dynamic) - LOAD_OFFSET) | |
176 | { | |
177 | __dynamic_start = .; | |
178 | *(.dynamic) | |
179 | } | |
180 | .hash : AT(ADDR(.hash) - LOAD_OFFSET) { *(.hash) } | |
181 | .interp : AT(ADDR(.interp) - LOAD_OFFSET) { *(.interp) } | |
182 | .rela.dyn : AT(ADDR(.rela.dyn) - LOAD_OFFSET) | |
183 | { | |
184 | __rela_dyn_start = .; | |
185 | *(.rela*) | |
186 | } | |
2a4b9c5a | 187 | #endif |
e8222502 BH |
188 | |
189 | /* freed after init ends here */ | |
190 | . = ALIGN(PAGE_SIZE); | |
191 | __init_end = .; | |
192 | ||
193 | /* | |
194 | * And now the various read/write data | |
195 | */ | |
196 | ||
197 | . = ALIGN(PAGE_SIZE); | |
198 | _sdata = .; | |
14cf11af | 199 | |
cabb5587 | 200 | #ifdef CONFIG_PPC32 |
366234f6 | 201 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
ca967258 | 202 | DATA_DATA |
e8222502 BH |
203 | *(.sdata) |
204 | *(.got.plt) *(.got) | |
205 | } | |
cabb5587 | 206 | #else |
366234f6 | 207 | .data : AT(ADDR(.data) - LOAD_OFFSET) { |
3ae0aa9f MD |
208 | DATA_DATA |
209 | *(.data.rel*) | |
210 | *(.toc1) | |
e8222502 BH |
211 | *(.branch_lt) |
212 | } | |
14cf11af | 213 | |
366234f6 | 214 | .opd : AT(ADDR(.opd) - LOAD_OFFSET) { |
e8222502 BH |
215 | *(.opd) |
216 | } | |
217 | ||
366234f6 | 218 | .got : AT(ADDR(.got) - LOAD_OFFSET) { |
e8222502 BH |
219 | __toc_start = .; |
220 | *(.got) | |
221 | *(.toc) | |
222 | } | |
cabb5587 | 223 | #endif |
14cf11af | 224 | |
e8222502 | 225 | /* The initial task and kernel stack */ |
2af7687f | 226 | INIT_TASK_DATA_SECTION(THREAD_SIZE) |
14cf11af | 227 | |
75b13483 | 228 | .data..page_aligned : AT(ADDR(.data..page_aligned) - LOAD_OFFSET) { |
62bef288 | 229 | PAGE_ALIGNED_DATA(PAGE_SIZE) |
e8222502 | 230 | } |
14cf11af | 231 | |
4af57b78 | 232 | .data..cacheline_aligned : AT(ADDR(.data..cacheline_aligned) - LOAD_OFFSET) { |
62bef288 | 233 | CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES) |
e8222502 | 234 | } |
14cf11af | 235 | |
54cb27a7 | 236 | .data..read_mostly : AT(ADDR(.data..read_mostly) - LOAD_OFFSET) { |
62bef288 | 237 | READ_MOSTLY_DATA(L1_CACHE_BYTES) |
bd67fcf9 TB |
238 | } |
239 | ||
5be2a213 | 240 | . = ALIGN(PAGE_SIZE); |
366234f6 | 241 | .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { |
62bef288 | 242 | NOSAVE_DATA |
e8222502 | 243 | } |
4a288563 | 244 | |
903444e4 ME |
245 | . = ALIGN(PAGE_SIZE); |
246 | _edata = .; | |
247 | PROVIDE32 (edata = .); | |
248 | ||
e8222502 BH |
249 | /* |
250 | * And finally the bss | |
251 | */ | |
252 | ||
62bef288 | 253 | BSS_SECTION(0, 0, 0) |
14cf11af | 254 | |
e8222502 BH |
255 | . = ALIGN(PAGE_SIZE); |
256 | _end = . ; | |
257 | PROVIDE32 (end = .); | |
023bf6f1 TH |
258 | |
259 | /* Sections to be discarded. */ | |
260 | DISCARDS | |
14cf11af | 261 | } |