Commit | Line | Data |
---|---|---|
ef53dae8 SR |
1 | /* |
2 | * Helper macros to support writing architecture specific | |
3 | * linker scripts. | |
4 | * | |
5 | * A minimal linker scripts has following content: | |
6 | * [This is a sample, architectures may have special requiriements] | |
7 | * | |
8 | * OUTPUT_FORMAT(...) | |
9 | * OUTPUT_ARCH(...) | |
10 | * ENTRY(...) | |
11 | * SECTIONS | |
12 | * { | |
13 | * . = START; | |
14 | * __init_begin = .; | |
7923f90f | 15 | * HEAD_TEXT_SECTION |
ef53dae8 SR |
16 | * INIT_TEXT_SECTION(PAGE_SIZE) |
17 | * INIT_DATA_SECTION(...) | |
0415b00d | 18 | * PERCPU_SECTION(CACHELINE_SIZE) |
ef53dae8 SR |
19 | * __init_end = .; |
20 | * | |
21 | * _stext = .; | |
22 | * TEXT_SECTION = 0 | |
23 | * _etext = .; | |
24 | * | |
25 | * _sdata = .; | |
26 | * RO_DATA_SECTION(PAGE_SIZE) | |
27 | * RW_DATA_SECTION(...) | |
28 | * _edata = .; | |
29 | * | |
30 | * EXCEPTION_TABLE(...) | |
31 | * NOTES | |
32 | * | |
04e448d9 | 33 | * BSS_SECTION(0, 0, 0) |
ef53dae8 SR |
34 | * _end = .; |
35 | * | |
ef53dae8 SR |
36 | * STABS_DEBUG |
37 | * DWARF_DEBUG | |
023bf6f1 TH |
38 | * |
39 | * DISCARDS // must be the last | |
ef53dae8 SR |
40 | * } |
41 | * | |
42 | * [__init_begin, __init_end] is the init section that may be freed after init | |
562c85ca YW |
43 | * // __init_begin and __init_end should be page aligned, so that we can |
44 | * // free the whole .init memory | |
ef53dae8 SR |
45 | * [_stext, _etext] is the text section |
46 | * [_sdata, _edata] is the data section | |
47 | * | |
48 | * Some of the included output section have their own set of constants. | |
49 | * Examples are: [__initramfs_start, __initramfs_end] for initramfs and | |
50 | * [__nosave_begin, __nosave_end] for the nosave data | |
51 | */ | |
c80d471a | 52 | |
1da177e4 LT |
53 | #ifndef LOAD_OFFSET |
54 | #define LOAD_OFFSET 0 | |
55 | #endif | |
56 | ||
b92021b0 | 57 | #include <linux/export.h> |
1da177e4 | 58 | |
6d30e3a8 SR |
59 | /* Align . to a 8 byte boundary equals to maximum function alignment. */ |
60 | #define ALIGN_FUNCTION() . = ALIGN(8) | |
61 | ||
07fca0e5 SR |
62 | /* |
63 | * Align to a 32 byte boundary equal to the | |
64 | * alignment gcc 4.5 uses for a struct | |
65 | */ | |
aab94339 DB |
66 | #define STRUCT_ALIGNMENT 32 |
67 | #define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT) | |
07fca0e5 | 68 | |
eb8f6890 SR |
69 | /* The actual configuration determine if the init/exit sections |
70 | * are handled as text/data or they can be discarded (which | |
71 | * often happens at runtime) | |
72 | */ | |
eb8f6890 SR |
73 | #ifdef CONFIG_HOTPLUG_CPU |
74 | #define CPU_KEEP(sec) *(.cpu##sec) | |
75 | #define CPU_DISCARD(sec) | |
76 | #else | |
77 | #define CPU_KEEP(sec) | |
78 | #define CPU_DISCARD(sec) *(.cpu##sec) | |
79 | #endif | |
80 | ||
1a3fb6d4 | 81 | #if defined(CONFIG_MEMORY_HOTPLUG) |
eb8f6890 SR |
82 | #define MEM_KEEP(sec) *(.mem##sec) |
83 | #define MEM_DISCARD(sec) | |
84 | #else | |
85 | #define MEM_KEEP(sec) | |
86 | #define MEM_DISCARD(sec) *(.mem##sec) | |
87 | #endif | |
88 | ||
8da3821b | 89 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
4b3b4c5e JR |
90 | #define MCOUNT_REC() . = ALIGN(8); \ |
91 | VMLINUX_SYMBOL(__start_mcount_loc) = .; \ | |
8da3821b SR |
92 | *(__mcount_loc) \ |
93 | VMLINUX_SYMBOL(__stop_mcount_loc) = .; | |
94 | #else | |
95 | #define MCOUNT_REC() | |
96 | #endif | |
eb8f6890 | 97 | |
2ed84eeb | 98 | #ifdef CONFIG_TRACE_BRANCH_PROFILING |
45b79749 SR |
99 | #define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \ |
100 | *(_ftrace_annotated_branch) \ | |
101 | VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .; | |
1f0d69a9 SR |
102 | #else |
103 | #define LIKELY_PROFILE() | |
104 | #endif | |
105 | ||
2bcd521a SR |
106 | #ifdef CONFIG_PROFILE_ALL_BRANCHES |
107 | #define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \ | |
108 | *(_ftrace_branch) \ | |
109 | VMLINUX_SYMBOL(__stop_branch_profile) = .; | |
110 | #else | |
111 | #define BRANCH_PROFILE() | |
112 | #endif | |
113 | ||
376e2424 | 114 | #ifdef CONFIG_KPROBES |
69902c71 VG |
115 | #define KPROBE_BLACKLIST() . = ALIGN(8); \ |
116 | VMLINUX_SYMBOL(__start_kprobe_blacklist) = .; \ | |
376e2424 MH |
117 | *(_kprobe_blacklist) \ |
118 | VMLINUX_SYMBOL(__stop_kprobe_blacklist) = .; | |
119 | #else | |
120 | #define KPROBE_BLACKLIST() | |
121 | #endif | |
122 | ||
5f77a88b | 123 | #ifdef CONFIG_EVENT_TRACING |
e4a9ea5e SR |
124 | #define FTRACE_EVENTS() . = ALIGN(8); \ |
125 | VMLINUX_SYMBOL(__start_ftrace_events) = .; \ | |
b77e38aa | 126 | *(_ftrace_events) \ |
0c564a53 SRRH |
127 | VMLINUX_SYMBOL(__stop_ftrace_events) = .; \ |
128 | VMLINUX_SYMBOL(__start_ftrace_enum_maps) = .; \ | |
129 | *(_ftrace_enum_map) \ | |
130 | VMLINUX_SYMBOL(__stop_ftrace_enum_maps) = .; | |
b77e38aa SR |
131 | #else |
132 | #define FTRACE_EVENTS() | |
133 | #endif | |
134 | ||
1ba28e02 LJ |
135 | #ifdef CONFIG_TRACING |
136 | #define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \ | |
137 | *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \ | |
138 | VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .; | |
102c9323 SRRH |
139 | #define TRACEPOINT_STR() VMLINUX_SYMBOL(__start___tracepoint_str) = .; \ |
140 | *(__tracepoint_str) /* Trace_printk fmt' pointer */ \ | |
141 | VMLINUX_SYMBOL(__stop___tracepoint_str) = .; | |
1ba28e02 LJ |
142 | #else |
143 | #define TRACE_PRINTKS() | |
102c9323 | 144 | #define TRACEPOINT_STR() |
1ba28e02 LJ |
145 | #endif |
146 | ||
bed1ffca | 147 | #ifdef CONFIG_FTRACE_SYSCALLS |
3d56e331 SR |
148 | #define TRACE_SYSCALLS() . = ALIGN(8); \ |
149 | VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ | |
bed1ffca FW |
150 | *(__syscalls_metadata) \ |
151 | VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; | |
152 | #else | |
153 | #define TRACE_SYSCALLS() | |
154 | #endif | |
155 | ||
470ca0de | 156 | #ifdef CONFIG_SERIAL_EARLYCON |
99492c39 | 157 | #define EARLYCON_TABLE() STRUCT_ALIGN(); \ |
470ca0de PH |
158 | VMLINUX_SYMBOL(__earlycon_table) = .; \ |
159 | *(__earlycon_table) \ | |
2eaa7909 | 160 | VMLINUX_SYMBOL(__earlycon_table_end) = .; |
470ca0de PH |
161 | #else |
162 | #define EARLYCON_TABLE() | |
163 | #endif | |
aab94339 | 164 | |
06309288 RH |
165 | #define ___OF_TABLE(cfg, name) _OF_TABLE_##cfg(name) |
166 | #define __OF_TABLE(cfg, name) ___OF_TABLE(cfg, name) | |
5ee02af1 | 167 | #define OF_TABLE(cfg, name) __OF_TABLE(IS_ENABLED(cfg), name) |
06309288 RH |
168 | #define _OF_TABLE_0(name) |
169 | #define _OF_TABLE_1(name) \ | |
f6e916b8 | 170 | . = ALIGN(8); \ |
06309288 RH |
171 | VMLINUX_SYMBOL(__##name##_of_table) = .; \ |
172 | *(__##name##_of_table) \ | |
173 | *(__##name##_of_table_end) | |
174 | ||
175 | #define CLKSRC_OF_TABLES() OF_TABLE(CONFIG_CLKSRC_OF, clksrc) | |
176 | #define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip) | |
177 | #define CLK_OF_TABLES() OF_TABLE(CONFIG_COMMON_CLK, clk) | |
1cd076bf | 178 | #define IOMMU_OF_TABLES() OF_TABLE(CONFIG_OF_IOMMU, iommu) |
06309288 RH |
179 | #define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem) |
180 | #define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method) | |
449e056c | 181 | #define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method) |
6c3ff8b1 | 182 | |
e647b532 MZ |
183 | #ifdef CONFIG_ACPI |
184 | #define ACPI_PROBE_TABLE(name) \ | |
185 | . = ALIGN(8); \ | |
186 | VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \ | |
187 | *(__##name##_acpi_probe_table) \ | |
188 | VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; | |
189 | #else | |
190 | #define ACPI_PROBE_TABLE(name) | |
191 | #endif | |
192 | ||
aab94339 DB |
193 | #define KERNEL_DTB() \ |
194 | STRUCT_ALIGN(); \ | |
195 | VMLINUX_SYMBOL(__dtb_start) = .; \ | |
196 | *(.dtb.init.rodata) \ | |
197 | VMLINUX_SYMBOL(__dtb_end) = .; | |
198 | ||
b67067f1 NP |
199 | /* |
200 | * .data section | |
201 | * -fdata-sections generates .data.identifier which needs to be pulled in | |
202 | * with .data, but don't want to pull in .data..stuff which has its own | |
203 | * requirements. Same for bss. | |
204 | */ | |
ca967258 | 205 | #define DATA_DATA \ |
b67067f1 | 206 | *(.data .data.[0-9a-zA-Z_]*) \ |
312b1485 | 207 | *(.ref.data) \ |
d356c0b6 | 208 | *(.data..shared_aligned) /* percpu related */ \ |
eb8f6890 SR |
209 | MEM_KEEP(init.data) \ |
210 | MEM_KEEP(exit.data) \ | |
7ccaba53 | 211 | *(.data.unlikely) \ |
65498646 | 212 | STRUCT_ALIGN(); \ |
97e1c18e | 213 | *(__tracepoints) \ |
e9d376f0 | 214 | /* implement dynamic printk debug */ \ |
d430d3d7 JB |
215 | . = ALIGN(8); \ |
216 | VMLINUX_SYMBOL(__start___jump_table) = .; \ | |
217 | *(__jump_table) \ | |
218 | VMLINUX_SYMBOL(__stop___jump_table) = .; \ | |
e9d376f0 JB |
219 | . = ALIGN(8); \ |
220 | VMLINUX_SYMBOL(__start___verbose) = .; \ | |
221 | *(__verbose) \ | |
222 | VMLINUX_SYMBOL(__stop___verbose) = .; \ | |
2bcd521a | 223 | LIKELY_PROFILE() \ |
b77e38aa | 224 | BRANCH_PROFILE() \ |
102c9323 SRRH |
225 | TRACE_PRINTKS() \ |
226 | TRACEPOINT_STR() | |
ca967258 | 227 | |
ef53dae8 SR |
228 | /* |
229 | * Data section helpers | |
230 | */ | |
231 | #define NOSAVE_DATA \ | |
232 | . = ALIGN(PAGE_SIZE); \ | |
233 | VMLINUX_SYMBOL(__nosave_begin) = .; \ | |
07b3bb1e | 234 | *(.data..nosave) \ |
ef53dae8 SR |
235 | . = ALIGN(PAGE_SIZE); \ |
236 | VMLINUX_SYMBOL(__nosave_end) = .; | |
237 | ||
238 | #define PAGE_ALIGNED_DATA(page_align) \ | |
239 | . = ALIGN(page_align); \ | |
75b13483 | 240 | *(.data..page_aligned) |
ef53dae8 SR |
241 | |
242 | #define READ_MOSTLY_DATA(align) \ | |
243 | . = ALIGN(align); \ | |
8369744f SL |
244 | *(.data..read_mostly) \ |
245 | . = ALIGN(align); | |
ef53dae8 SR |
246 | |
247 | #define CACHELINE_ALIGNED_DATA(align) \ | |
248 | . = ALIGN(align); \ | |
4af57b78 | 249 | *(.data..cacheline_aligned) |
ef53dae8 | 250 | |
39a449d9 | 251 | #define INIT_TASK_DATA(align) \ |
ef53dae8 | 252 | . = ALIGN(align); \ |
91ed140d BP |
253 | VMLINUX_SYMBOL(__start_init_task) = .; \ |
254 | *(.data..init_task) \ | |
255 | VMLINUX_SYMBOL(__end_init_task) = .; | |
ef53dae8 | 256 | |
32fb2fc5 HC |
257 | /* |
258 | * Allow architectures to handle ro_after_init data on their | |
259 | * own by defining an empty RO_AFTER_INIT_DATA. | |
260 | */ | |
261 | #ifndef RO_AFTER_INIT_DATA | |
262 | #define RO_AFTER_INIT_DATA *(.data..ro_after_init) | |
263 | #endif | |
264 | ||
ef53dae8 SR |
265 | /* |
266 | * Read only Data | |
267 | */ | |
268 | #define RO_DATA_SECTION(align) \ | |
4096b46f | 269 | . = ALIGN((align)); \ |
1da177e4 | 270 | .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ |
6569580d | 271 | VMLINUX_SYMBOL(__start_rodata) = .; \ |
1da177e4 | 272 | *(.rodata) *(.rodata.*) \ |
32fb2fc5 | 273 | RO_AFTER_INIT_DATA /* Read only after init */ \ |
1da177e4 | 274 | *(__vermagic) /* Kernel version magic */ \ |
65498646 MD |
275 | . = ALIGN(8); \ |
276 | VMLINUX_SYMBOL(__start___tracepoints_ptrs) = .; \ | |
277 | *(__tracepoints_ptrs) /* Tracepoints: pointer array */\ | |
278 | VMLINUX_SYMBOL(__stop___tracepoints_ptrs) = .; \ | |
97e1c18e | 279 | *(__tracepoints_strings)/* Tracepoints: strings */ \ |
1da177e4 LT |
280 | } \ |
281 | \ | |
282 | .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \ | |
283 | *(.rodata1) \ | |
284 | } \ | |
285 | \ | |
6360b1fb JB |
286 | BUG_TABLE \ |
287 | \ | |
1da177e4 LT |
288 | /* PCI quirks */ \ |
289 | .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ | |
290 | VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ | |
291 | *(.pci_fixup_early) \ | |
292 | VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \ | |
293 | VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \ | |
294 | *(.pci_fixup_header) \ | |
295 | VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \ | |
296 | VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \ | |
297 | *(.pci_fixup_final) \ | |
298 | VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \ | |
299 | VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \ | |
300 | *(.pci_fixup_enable) \ | |
301 | VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \ | |
1597cacb AC |
302 | VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \ |
303 | *(.pci_fixup_resume) \ | |
304 | VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \ | |
e1a2a51e RW |
305 | VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \ |
306 | *(.pci_fixup_resume_early) \ | |
307 | VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \ | |
308 | VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \ | |
309 | *(.pci_fixup_suspend) \ | |
310 | VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \ | |
7d2a01b8 AN |
311 | VMLINUX_SYMBOL(__start_pci_fixups_suspend_late) = .; \ |
312 | *(.pci_fixup_suspend_late) \ | |
313 | VMLINUX_SYMBOL(__end_pci_fixups_suspend_late) = .; \ | |
1da177e4 LT |
314 | } \ |
315 | \ | |
5658c769 DW |
316 | /* Built-in firmware blobs */ \ |
317 | .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \ | |
318 | VMLINUX_SYMBOL(__start_builtin_fw) = .; \ | |
319 | *(.builtin_fw) \ | |
320 | VMLINUX_SYMBOL(__end_builtin_fw) = .; \ | |
321 | } \ | |
322 | \ | |
63687a52 JB |
323 | TRACEDATA \ |
324 | \ | |
1da177e4 LT |
325 | /* Kernel symbol table: Normal symbols */ \ |
326 | __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ | |
327 | VMLINUX_SYMBOL(__start___ksymtab) = .; \ | |
b67067f1 | 328 | KEEP(*(SORT(___ksymtab+*))) \ |
1da177e4 LT |
329 | VMLINUX_SYMBOL(__stop___ksymtab) = .; \ |
330 | } \ | |
331 | \ | |
332 | /* Kernel symbol table: GPL-only symbols */ \ | |
333 | __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ | |
334 | VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ | |
b67067f1 | 335 | KEEP(*(SORT(___ksymtab_gpl+*))) \ |
1da177e4 LT |
336 | VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ |
337 | } \ | |
338 | \ | |
f71d20e9 AV |
339 | /* Kernel symbol table: Normal unused symbols */ \ |
340 | __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ | |
341 | VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ | |
b67067f1 | 342 | KEEP(*(SORT(___ksymtab_unused+*))) \ |
f71d20e9 AV |
343 | VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ |
344 | } \ | |
345 | \ | |
346 | /* Kernel symbol table: GPL-only unused symbols */ \ | |
347 | __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ | |
348 | VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ | |
b67067f1 | 349 | KEEP(*(SORT(___ksymtab_unused_gpl+*))) \ |
f71d20e9 AV |
350 | VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ |
351 | } \ | |
352 | \ | |
9f28bb7e GKH |
353 | /* Kernel symbol table: GPL-future-only symbols */ \ |
354 | __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ | |
355 | VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ | |
b67067f1 | 356 | KEEP(*(SORT(___ksymtab_gpl_future+*))) \ |
9f28bb7e GKH |
357 | VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ |
358 | } \ | |
359 | \ | |
1da177e4 LT |
360 | /* Kernel symbol table: Normal symbols */ \ |
361 | __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ | |
362 | VMLINUX_SYMBOL(__start___kcrctab) = .; \ | |
b67067f1 | 363 | KEEP(*(SORT(___kcrctab+*))) \ |
1da177e4 LT |
364 | VMLINUX_SYMBOL(__stop___kcrctab) = .; \ |
365 | } \ | |
366 | \ | |
367 | /* Kernel symbol table: GPL-only symbols */ \ | |
368 | __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ | |
369 | VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ | |
b67067f1 | 370 | KEEP(*(SORT(___kcrctab_gpl+*))) \ |
1da177e4 LT |
371 | VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ |
372 | } \ | |
373 | \ | |
f71d20e9 AV |
374 | /* Kernel symbol table: Normal unused symbols */ \ |
375 | __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ | |
376 | VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ | |
b67067f1 | 377 | KEEP(*(SORT(___kcrctab_unused+*))) \ |
f71d20e9 AV |
378 | VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ |
379 | } \ | |
380 | \ | |
381 | /* Kernel symbol table: GPL-only unused symbols */ \ | |
382 | __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ | |
383 | VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ | |
b67067f1 | 384 | KEEP(*(SORT(___kcrctab_unused_gpl+*))) \ |
f71d20e9 AV |
385 | VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ |
386 | } \ | |
387 | \ | |
9f28bb7e GKH |
388 | /* Kernel symbol table: GPL-future-only symbols */ \ |
389 | __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ | |
390 | VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ | |
b67067f1 | 391 | KEEP(*(SORT(___kcrctab_gpl_future+*))) \ |
9f28bb7e GKH |
392 | VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ |
393 | } \ | |
394 | \ | |
1da177e4 LT |
395 | /* Kernel symbol table: strings */ \ |
396 | __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ | |
b67067f1 | 397 | KEEP(*(__ksymtab_strings)) \ |
1da177e4 LT |
398 | } \ |
399 | \ | |
eb8f6890 SR |
400 | /* __*init sections */ \ |
401 | __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \ | |
312b1485 | 402 | *(.ref.rodata) \ |
eb8f6890 SR |
403 | MEM_KEEP(init.rodata) \ |
404 | MEM_KEEP(exit.rodata) \ | |
405 | } \ | |
406 | \ | |
1da177e4 LT |
407 | /* Built-in module parameters. */ \ |
408 | __param : AT(ADDR(__param) - LOAD_OFFSET) { \ | |
409 | VMLINUX_SYMBOL(__start___param) = .; \ | |
410 | *(__param) \ | |
411 | VMLINUX_SYMBOL(__stop___param) = .; \ | |
e94965ed DT |
412 | } \ |
413 | \ | |
414 | /* Built-in module versions. */ \ | |
415 | __modver : AT(ADDR(__modver) - LOAD_OFFSET) { \ | |
416 | VMLINUX_SYMBOL(__start___modver) = .; \ | |
417 | *(__modver) \ | |
418 | VMLINUX_SYMBOL(__stop___modver) = .; \ | |
edeed305 | 419 | . = ALIGN((align)); \ |
6569580d | 420 | VMLINUX_SYMBOL(__end_rodata) = .; \ |
7583ddfd | 421 | } \ |
4096b46f SR |
422 | . = ALIGN((align)); |
423 | ||
ef53dae8 | 424 | /* RODATA & RO_DATA provided for backward compatibility. |
4096b46f | 425 | * All archs are supposed to use RO_DATA() */ |
ef53dae8 SR |
426 | #define RODATA RO_DATA_SECTION(4096) |
427 | #define RO_DATA(align) RO_DATA_SECTION(align) | |
1da177e4 LT |
428 | |
429 | #define SECURITY_INIT \ | |
60bad7fa | 430 | .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ |
1da177e4 | 431 | VMLINUX_SYMBOL(__security_initcall_start) = .; \ |
b67067f1 | 432 | KEEP(*(.security_initcall.init)) \ |
1da177e4 LT |
433 | VMLINUX_SYMBOL(__security_initcall_end) = .; \ |
434 | } | |
435 | ||
7664709b SR |
436 | /* .text section. Map to function alignment to avoid address changes |
437 | * during second ld run in second ld pass when generating System.map */ | |
438 | #define TEXT_TEXT \ | |
439 | ALIGN_FUNCTION(); \ | |
b67067f1 | 440 | *(.text.hot .text .text.fixup .text.unlikely .text.*) \ |
312b1485 | 441 | *(.ref.text) \ |
eb8f6890 | 442 | MEM_KEEP(init.text) \ |
fb5e2b37 | 443 | MEM_KEEP(exit.text) \ |
eb8f6890 | 444 | |
7664709b | 445 | |
6d30e3a8 SR |
446 | /* sched.text is aling to function alignment to secure we have same |
447 | * address even at second ld pass when generating System.map */ | |
1da177e4 | 448 | #define SCHED_TEXT \ |
6d30e3a8 | 449 | ALIGN_FUNCTION(); \ |
1da177e4 LT |
450 | VMLINUX_SYMBOL(__sched_text_start) = .; \ |
451 | *(.sched.text) \ | |
452 | VMLINUX_SYMBOL(__sched_text_end) = .; | |
453 | ||
6d30e3a8 SR |
454 | /* spinlock.text is aling to function alignment to secure we have same |
455 | * address even at second ld pass when generating System.map */ | |
1da177e4 | 456 | #define LOCK_TEXT \ |
6d30e3a8 | 457 | ALIGN_FUNCTION(); \ |
1da177e4 LT |
458 | VMLINUX_SYMBOL(__lock_text_start) = .; \ |
459 | *(.spinlock.text) \ | |
460 | VMLINUX_SYMBOL(__lock_text_end) = .; | |
d0aaff97 PP |
461 | |
462 | #define KPROBES_TEXT \ | |
463 | ALIGN_FUNCTION(); \ | |
464 | VMLINUX_SYMBOL(__kprobes_text_start) = .; \ | |
465 | *(.kprobes.text) \ | |
466 | VMLINUX_SYMBOL(__kprobes_text_end) = .; | |
a7d0c210 | 467 | |
ea714547 JO |
468 | #define ENTRY_TEXT \ |
469 | ALIGN_FUNCTION(); \ | |
470 | VMLINUX_SYMBOL(__entry_text_start) = .; \ | |
471 | *(.entry.text) \ | |
472 | VMLINUX_SYMBOL(__entry_text_end) = .; | |
473 | ||
be7635e7 | 474 | #if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN) |
a0343e82 FW |
475 | #define IRQENTRY_TEXT \ |
476 | ALIGN_FUNCTION(); \ | |
477 | VMLINUX_SYMBOL(__irqentry_text_start) = .; \ | |
478 | *(.irqentry.text) \ | |
479 | VMLINUX_SYMBOL(__irqentry_text_end) = .; | |
480 | #else | |
481 | #define IRQENTRY_TEXT | |
482 | #endif | |
483 | ||
be7635e7 AP |
484 | #if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN) |
485 | #define SOFTIRQENTRY_TEXT \ | |
486 | ALIGN_FUNCTION(); \ | |
487 | VMLINUX_SYMBOL(__softirqentry_text_start) = .; \ | |
488 | *(.softirqentry.text) \ | |
489 | VMLINUX_SYMBOL(__softirqentry_text_end) = .; | |
490 | #else | |
491 | #define SOFTIRQENTRY_TEXT | |
492 | #endif | |
493 | ||
37c514e3 | 494 | /* Section used for early init (in .S files) */ |
7923f90f | 495 | #define HEAD_TEXT *(.head.text) |
37c514e3 | 496 | |
7923f90f | 497 | #define HEAD_TEXT_SECTION \ |
ef53dae8 SR |
498 | .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \ |
499 | HEAD_TEXT \ | |
500 | } | |
501 | ||
502 | /* | |
503 | * Exception table | |
504 | */ | |
505 | #define EXCEPTION_TABLE(align) \ | |
506 | . = ALIGN(align); \ | |
507 | __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \ | |
508 | VMLINUX_SYMBOL(__start___ex_table) = .; \ | |
509 | *(__ex_table) \ | |
510 | VMLINUX_SYMBOL(__stop___ex_table) = .; \ | |
511 | } | |
512 | ||
513 | /* | |
514 | * Init task | |
515 | */ | |
39a449d9 | 516 | #define INIT_TASK_DATA_SECTION(align) \ |
ef53dae8 | 517 | . = ALIGN(align); \ |
da5e37ef | 518 | .data..init_task : AT(ADDR(.data..init_task) - LOAD_OFFSET) { \ |
39a449d9 | 519 | INIT_TASK_DATA(align) \ |
ef53dae8 | 520 | } |
37c514e3 | 521 | |
b99b87f7 | 522 | #ifdef CONFIG_CONSTRUCTORS |
2a2325e6 HC |
523 | #define KERNEL_CTORS() . = ALIGN(8); \ |
524 | VMLINUX_SYMBOL(__ctors_start) = .; \ | |
b99b87f7 | 525 | *(.ctors) \ |
9ddf8252 | 526 | *(SORT(.init_array.*)) \ |
eb3057df | 527 | *(.init_array) \ |
b99b87f7 PO |
528 | VMLINUX_SYMBOL(__ctors_end) = .; |
529 | #else | |
530 | #define KERNEL_CTORS() | |
531 | #endif | |
532 | ||
01ba2bdc | 533 | /* init and exit section handling */ |
eb8f6890 | 534 | #define INIT_DATA \ |
b67067f1 | 535 | KEEP(*(SORT(___kentry+*))) \ |
eb8f6890 | 536 | *(.init.data) \ |
eb8f6890 | 537 | MEM_DISCARD(init.data) \ |
b99b87f7 | 538 | KERNEL_CTORS() \ |
4b3b4c5e | 539 | MCOUNT_REC() \ |
9fd49328 | 540 | *(.init.rodata) \ |
e4a9ea5e | 541 | FTRACE_EVENTS() \ |
3d56e331 | 542 | TRACE_SYSCALLS() \ |
376e2424 | 543 | KPROBE_BLACKLIST() \ |
aab94339 | 544 | MEM_DISCARD(init.rodata) \ |
f2f6c255 | 545 | CLK_OF_TABLES() \ |
f618c470 | 546 | RESERVEDMEM_OF_TABLES() \ |
ae278a93 | 547 | CLKSRC_OF_TABLES() \ |
1cd076bf | 548 | IOMMU_OF_TABLES() \ |
6c3ff8b1 | 549 | CPU_METHOD_OF_TABLES() \ |
449e056c | 550 | CPUIDLE_METHOD_OF_TABLES() \ |
f6e916b8 | 551 | KERNEL_DTB() \ |
b0b6abd3 | 552 | IRQCHIP_OF_MATCH_TABLE() \ |
46e589a3 | 553 | ACPI_PROBE_TABLE(irqchip) \ |
c625f76a | 554 | ACPI_PROBE_TABLE(clksrc) \ |
2eaa7909 | 555 | EARLYCON_TABLE() |
eb8f6890 SR |
556 | |
557 | #define INIT_TEXT \ | |
558 | *(.init.text) \ | |
e41f501d | 559 | *(.text.startup) \ |
eb8f6890 SR |
560 | MEM_DISCARD(init.text) |
561 | ||
562 | #define EXIT_DATA \ | |
563 | *(.exit.data) \ | |
e41f501d DV |
564 | *(.fini_array) \ |
565 | *(.dtors) \ | |
eb8f6890 SR |
566 | MEM_DISCARD(exit.data) \ |
567 | MEM_DISCARD(exit.rodata) | |
01ba2bdc | 568 | |
eb8f6890 SR |
569 | #define EXIT_TEXT \ |
570 | *(.exit.text) \ | |
e41f501d | 571 | *(.text.exit) \ |
eb8f6890 | 572 | MEM_DISCARD(exit.text) |
01ba2bdc | 573 | |
7923f90f SR |
574 | #define EXIT_CALL \ |
575 | *(.exitcall.exit) | |
576 | ||
ef53dae8 SR |
577 | /* |
578 | * bss (Block Started by Symbol) - uninitialized data | |
579 | * zeroed during startup | |
580 | */ | |
04e448d9 TA |
581 | #define SBSS(sbss_align) \ |
582 | . = ALIGN(sbss_align); \ | |
ef53dae8 SR |
583 | .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \ |
584 | *(.sbss) \ | |
585 | *(.scommon) \ | |
586 | } | |
587 | ||
c87728ca DD |
588 | /* |
589 | * Allow archectures to redefine BSS_FIRST_SECTIONS to add extra | |
590 | * sections to the front of bss. | |
591 | */ | |
592 | #ifndef BSS_FIRST_SECTIONS | |
593 | #define BSS_FIRST_SECTIONS | |
594 | #endif | |
595 | ||
ef53dae8 SR |
596 | #define BSS(bss_align) \ |
597 | . = ALIGN(bss_align); \ | |
598 | .bss : AT(ADDR(.bss) - LOAD_OFFSET) { \ | |
c87728ca | 599 | BSS_FIRST_SECTIONS \ |
7c74df07 | 600 | *(.bss..page_aligned) \ |
ef53dae8 | 601 | *(.dynbss) \ |
b67067f1 | 602 | *(.bss .bss.[0-9a-zA-Z_]*) \ |
ef53dae8 | 603 | *(COMMON) \ |
ef53dae8 SR |
604 | } |
605 | ||
606 | /* | |
607 | * DWARF debug sections. | |
608 | * Symbols in the DWARF debugging sections are relative to | |
609 | * the beginning of the section so we begin them at 0. | |
610 | */ | |
a7d0c210 PBG |
611 | #define DWARF_DEBUG \ |
612 | /* DWARF 1 */ \ | |
613 | .debug 0 : { *(.debug) } \ | |
614 | .line 0 : { *(.line) } \ | |
615 | /* GNU DWARF 1 extensions */ \ | |
616 | .debug_srcinfo 0 : { *(.debug_srcinfo) } \ | |
617 | .debug_sfnames 0 : { *(.debug_sfnames) } \ | |
618 | /* DWARF 1.1 and DWARF 2 */ \ | |
619 | .debug_aranges 0 : { *(.debug_aranges) } \ | |
620 | .debug_pubnames 0 : { *(.debug_pubnames) } \ | |
621 | /* DWARF 2 */ \ | |
622 | .debug_info 0 : { *(.debug_info \ | |
623 | .gnu.linkonce.wi.*) } \ | |
624 | .debug_abbrev 0 : { *(.debug_abbrev) } \ | |
625 | .debug_line 0 : { *(.debug_line) } \ | |
626 | .debug_frame 0 : { *(.debug_frame) } \ | |
627 | .debug_str 0 : { *(.debug_str) } \ | |
628 | .debug_loc 0 : { *(.debug_loc) } \ | |
629 | .debug_macinfo 0 : { *(.debug_macinfo) } \ | |
630 | /* SGI/MIPS DWARF 2 extensions */ \ | |
631 | .debug_weaknames 0 : { *(.debug_weaknames) } \ | |
632 | .debug_funcnames 0 : { *(.debug_funcnames) } \ | |
633 | .debug_typenames 0 : { *(.debug_typenames) } \ | |
634 | .debug_varnames 0 : { *(.debug_varnames) } \ | |
635 | ||
636 | /* Stabs debugging sections. */ | |
637 | #define STABS_DEBUG \ | |
638 | .stab 0 : { *(.stab) } \ | |
639 | .stabstr 0 : { *(.stabstr) } \ | |
640 | .stab.excl 0 : { *(.stab.excl) } \ | |
641 | .stab.exclstr 0 : { *(.stab.exclstr) } \ | |
642 | .stab.index 0 : { *(.stab.index) } \ | |
643 | .stab.indexstr 0 : { *(.stab.indexstr) } \ | |
644 | .comment 0 : { *(.comment) } | |
9c9b8b38 | 645 | |
6360b1fb | 646 | #ifdef CONFIG_GENERIC_BUG |
7664c5a1 JF |
647 | #define BUG_TABLE \ |
648 | . = ALIGN(8); \ | |
649 | __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \ | |
c6de0026 | 650 | VMLINUX_SYMBOL(__start___bug_table) = .; \ |
7664c5a1 | 651 | *(__bug_table) \ |
c6de0026 | 652 | VMLINUX_SYMBOL(__stop___bug_table) = .; \ |
7664c5a1 | 653 | } |
6360b1fb JB |
654 | #else |
655 | #define BUG_TABLE | |
656 | #endif | |
7664c5a1 | 657 | |
63687a52 JB |
658 | #ifdef CONFIG_PM_TRACE |
659 | #define TRACEDATA \ | |
660 | . = ALIGN(4); \ | |
661 | .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \ | |
c6de0026 | 662 | VMLINUX_SYMBOL(__tracedata_start) = .; \ |
63687a52 | 663 | *(.tracedata) \ |
c6de0026 | 664 | VMLINUX_SYMBOL(__tracedata_end) = .; \ |
63687a52 JB |
665 | } |
666 | #else | |
667 | #define TRACEDATA | |
668 | #endif | |
669 | ||
9c9b8b38 | 670 | #define NOTES \ |
cbe87121 RM |
671 | .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ |
672 | VMLINUX_SYMBOL(__start_notes) = .; \ | |
673 | *(.note.*) \ | |
674 | VMLINUX_SYMBOL(__stop_notes) = .; \ | |
675 | } | |
61ce1efe | 676 | |
ef53dae8 SR |
677 | #define INIT_SETUP(initsetup_align) \ |
678 | . = ALIGN(initsetup_align); \ | |
679 | VMLINUX_SYMBOL(__setup_start) = .; \ | |
680 | *(.init.setup) \ | |
681 | VMLINUX_SYMBOL(__setup_end) = .; | |
682 | ||
026cee00 PM |
683 | #define INIT_CALLS_LEVEL(level) \ |
684 | VMLINUX_SYMBOL(__initcall##level##_start) = .; \ | |
b67067f1 NP |
685 | KEEP(*(.initcall##level##.init)) \ |
686 | KEEP(*(.initcall##level##s.init)) \ | |
61ce1efe | 687 | |
ef53dae8 SR |
688 | #define INIT_CALLS \ |
689 | VMLINUX_SYMBOL(__initcall_start) = .; \ | |
b67067f1 | 690 | KEEP(*(.initcallearly.init)) \ |
026cee00 PM |
691 | INIT_CALLS_LEVEL(0) \ |
692 | INIT_CALLS_LEVEL(1) \ | |
693 | INIT_CALLS_LEVEL(2) \ | |
694 | INIT_CALLS_LEVEL(3) \ | |
695 | INIT_CALLS_LEVEL(4) \ | |
696 | INIT_CALLS_LEVEL(5) \ | |
697 | INIT_CALLS_LEVEL(rootfs) \ | |
698 | INIT_CALLS_LEVEL(6) \ | |
699 | INIT_CALLS_LEVEL(7) \ | |
ef53dae8 SR |
700 | VMLINUX_SYMBOL(__initcall_end) = .; |
701 | ||
702 | #define CON_INITCALL \ | |
703 | VMLINUX_SYMBOL(__con_initcall_start) = .; \ | |
b67067f1 | 704 | KEEP(*(.con_initcall.init)) \ |
ef53dae8 SR |
705 | VMLINUX_SYMBOL(__con_initcall_end) = .; |
706 | ||
707 | #define SECURITY_INITCALL \ | |
708 | VMLINUX_SYMBOL(__security_initcall_start) = .; \ | |
b67067f1 | 709 | KEEP(*(.security_initcall.init)) \ |
ef53dae8 SR |
710 | VMLINUX_SYMBOL(__security_initcall_end) = .; |
711 | ||
712 | #ifdef CONFIG_BLK_DEV_INITRD | |
713 | #define INIT_RAM_FS \ | |
d8826262 | 714 | . = ALIGN(4); \ |
ef53dae8 | 715 | VMLINUX_SYMBOL(__initramfs_start) = .; \ |
b67067f1 | 716 | KEEP(*(.init.ramfs)) \ |
ffe8018c | 717 | . = ALIGN(8); \ |
b67067f1 | 718 | KEEP(*(.init.ramfs.info)) |
ef53dae8 | 719 | #else |
eadfe219 | 720 | #define INIT_RAM_FS |
ef53dae8 SR |
721 | #endif |
722 | ||
023bf6f1 TH |
723 | /* |
724 | * Default discarded sections. | |
725 | * | |
726 | * Some archs want to discard exit text/data at runtime rather than | |
727 | * link time due to cross-section references such as alt instructions, | |
728 | * bug table, eh_frame, etc. DISCARDS must be the last of output | |
729 | * section definitions so that such archs put those in earlier section | |
730 | * definitions. | |
731 | */ | |
405d967d TH |
732 | #define DISCARDS \ |
733 | /DISCARD/ : { \ | |
734 | EXIT_TEXT \ | |
735 | EXIT_DATA \ | |
023bf6f1 | 736 | EXIT_CALL \ |
405d967d | 737 | *(.discard) \ |
c7f52cdc | 738 | *(.discard.*) \ |
405d967d TH |
739 | } |
740 | ||
6ea0c34d MF |
741 | /** |
742 | * PERCPU_INPUT - the percpu input sections | |
743 | * @cacheline: cacheline size | |
744 | * | |
745 | * The core percpu section names and core symbols which do not rely | |
746 | * directly upon load addresses. | |
747 | * | |
748 | * @cacheline is used to align subsections to avoid false cacheline | |
749 | * sharing between subsections for different purposes. | |
750 | */ | |
751 | #define PERCPU_INPUT(cacheline) \ | |
752 | VMLINUX_SYMBOL(__per_cpu_start) = .; \ | |
753 | *(.data..percpu..first) \ | |
754 | . = ALIGN(PAGE_SIZE); \ | |
755 | *(.data..percpu..page_aligned) \ | |
756 | . = ALIGN(cacheline); \ | |
330d2822 | 757 | *(.data..percpu..read_mostly) \ |
6ea0c34d MF |
758 | . = ALIGN(cacheline); \ |
759 | *(.data..percpu) \ | |
760 | *(.data..percpu..shared_aligned) \ | |
761 | VMLINUX_SYMBOL(__per_cpu_end) = .; | |
762 | ||
3e5d8f97 | 763 | /** |
6b7c38d5 | 764 | * PERCPU_VADDR - define output section for percpu area |
19df0c2f | 765 | * @cacheline: cacheline size |
3e5d8f97 TH |
766 | * @vaddr: explicit base address (optional) |
767 | * @phdr: destination PHDR (optional) | |
768 | * | |
19df0c2f TH |
769 | * Macro which expands to output section for percpu area. |
770 | * | |
771 | * @cacheline is used to align subsections to avoid false cacheline | |
772 | * sharing between subsections for different purposes. | |
773 | * | |
774 | * If @vaddr is not blank, it specifies explicit base address and all | |
775 | * percpu symbols will be offset from the given address. If blank, | |
776 | * @vaddr always equals @laddr + LOAD_OFFSET. | |
3e5d8f97 TH |
777 | * |
778 | * @phdr defines the output PHDR to use if not blank. Be warned that | |
779 | * output PHDR is sticky. If @phdr is specified, the next output | |
780 | * section in the linker script will go there too. @phdr should have | |
781 | * a leading colon. | |
782 | * | |
3ac6cffe TH |
783 | * Note that this macros defines __per_cpu_load as an absolute symbol. |
784 | * If there is no need to put the percpu section at a predetermined | |
0415b00d | 785 | * address, use PERCPU_SECTION. |
3e5d8f97 | 786 | */ |
19df0c2f | 787 | #define PERCPU_VADDR(cacheline, vaddr, phdr) \ |
dba3d36b | 788 | VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
3d9a854c | 789 | .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ |
6b7c38d5 | 790 | - LOAD_OFFSET) { \ |
6ea0c34d | 791 | PERCPU_INPUT(cacheline) \ |
6b7c38d5 | 792 | } phdr \ |
3d9a854c | 793 | . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); |
3e5d8f97 TH |
794 | |
795 | /** | |
0415b00d | 796 | * PERCPU_SECTION - define output section for percpu area, simple version |
19df0c2f | 797 | * @cacheline: cacheline size |
3e5d8f97 | 798 | * |
0415b00d TH |
799 | * Align to PAGE_SIZE and outputs output section for percpu area. This |
800 | * macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and | |
3e5d8f97 | 801 | * __per_cpu_start will be identical. |
3ac6cffe | 802 | * |
0415b00d | 803 | * This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,) |
19df0c2f TH |
804 | * except that __per_cpu_load is defined as a relative symbol against |
805 | * .data..percpu which is required for relocatable x86_32 configuration. | |
3e5d8f97 | 806 | */ |
0415b00d TH |
807 | #define PERCPU_SECTION(cacheline) \ |
808 | . = ALIGN(PAGE_SIZE); \ | |
3d9a854c | 809 | .data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \ |
3ac6cffe | 810 | VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
6ea0c34d | 811 | PERCPU_INPUT(cacheline) \ |
3ac6cffe | 812 | } |
ef53dae8 SR |
813 | |
814 | ||
815 | /* | |
816 | * Definition of the high level *_SECTION macros | |
817 | * They will fit only a subset of the architectures | |
818 | */ | |
819 | ||
820 | ||
821 | /* | |
822 | * Writeable data. | |
823 | * All sections are combined in a single .data section. | |
824 | * The sections following CONSTRUCTORS are arranged so their | |
825 | * typical alignment matches. | |
826 | * A cacheline is typical/always less than a PAGE_SIZE so | |
827 | * the sections that has this restriction (or similar) | |
828 | * is located before the ones requiring PAGE_SIZE alignment. | |
829 | * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which | |
25985edc | 830 | * matches the requirement of PAGE_ALIGNED_DATA. |
ef53dae8 | 831 | * |
7923f90f | 832 | * use 0 as page_align if page_aligned data is not used */ |
73f1d939 | 833 | #define RW_DATA_SECTION(cacheline, pagealigned, inittask) \ |
ef53dae8 SR |
834 | . = ALIGN(PAGE_SIZE); \ |
835 | .data : AT(ADDR(.data) - LOAD_OFFSET) { \ | |
39a449d9 | 836 | INIT_TASK_DATA(inittask) \ |
1b208622 TA |
837 | NOSAVE_DATA \ |
838 | PAGE_ALIGNED_DATA(pagealigned) \ | |
ef53dae8 SR |
839 | CACHELINE_ALIGNED_DATA(cacheline) \ |
840 | READ_MOSTLY_DATA(cacheline) \ | |
841 | DATA_DATA \ | |
842 | CONSTRUCTORS \ | |
ef53dae8 SR |
843 | } |
844 | ||
845 | #define INIT_TEXT_SECTION(inittext_align) \ | |
846 | . = ALIGN(inittext_align); \ | |
847 | .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { \ | |
848 | VMLINUX_SYMBOL(_sinittext) = .; \ | |
849 | INIT_TEXT \ | |
850 | VMLINUX_SYMBOL(_einittext) = .; \ | |
851 | } | |
852 | ||
853 | #define INIT_DATA_SECTION(initsetup_align) \ | |
854 | .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { \ | |
855 | INIT_DATA \ | |
856 | INIT_SETUP(initsetup_align) \ | |
857 | INIT_CALLS \ | |
858 | CON_INITCALL \ | |
859 | SECURITY_INITCALL \ | |
860 | INIT_RAM_FS \ | |
861 | } | |
862 | ||
04e448d9 TA |
863 | #define BSS_SECTION(sbss_align, bss_align, stop_align) \ |
864 | . = ALIGN(sbss_align); \ | |
865 | VMLINUX_SYMBOL(__bss_start) = .; \ | |
866 | SBSS(sbss_align) \ | |
ef53dae8 | 867 | BSS(bss_align) \ |
04e448d9 TA |
868 | . = ALIGN(stop_align); \ |
869 | VMLINUX_SYMBOL(__bss_stop) = .; |