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kernel-doc: cleanup perl script
[linux-2.6-block.git] / include / asm-generic / vmlinux.lds.h
CommitLineData
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 = .;
15 * HEAD_SECTION
16 * INIT_TEXT_SECTION(PAGE_SIZE)
17 * INIT_DATA_SECTION(...)
18 * PERCPU(PAGE_SIZE)
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 *
33 * __bss_start = .;
34 * BSS_SECTION(0, 0)
35 * __bss_stop = .;
36 * _end = .;
37 *
38 * /DISCARD/ : {
39 * EXIT_TEXT
40 * EXIT_DATA
41 * *(.exitcall.exit)
42 * }
43 * STABS_DEBUG
44 * DWARF_DEBUG
45 * }
46 *
47 * [__init_begin, __init_end] is the init section that may be freed after init
48 * [_stext, _etext] is the text section
49 * [_sdata, _edata] is the data section
50 *
51 * Some of the included output section have their own set of constants.
52 * Examples are: [__initramfs_start, __initramfs_end] for initramfs and
53 * [__nosave_begin, __nosave_end] for the nosave data
54 */
55 #include <linux/section-names.h>
c80d471a 56
1da177e4
LT		 57#ifndef LOAD_OFFSET
58#define LOAD_OFFSET 0
59#endif
60
61#ifndef VMLINUX_SYMBOL
62#define VMLINUX_SYMBOL(_sym_) _sym_
63#endif
64
6d30e3a8
SR		 65/* Align . to a 8 byte boundary equals to maximum function alignment. */
66#define ALIGN_FUNCTION() . = ALIGN(8)
67
eb8f6890
SR		 68/* The actual configuration determine if the init/exit sections
69 * are handled as text/data or they can be discarded (which
70 * often happens at runtime)
71 */
72#ifdef CONFIG_HOTPLUG
73#define DEV_KEEP(sec) *(.dev##sec)
74#define DEV_DISCARD(sec)
75#else
76#define DEV_KEEP(sec)
77#define DEV_DISCARD(sec) *(.dev##sec)
78#endif
79
80#ifdef CONFIG_HOTPLUG_CPU
81#define CPU_KEEP(sec) *(.cpu##sec)
82#define CPU_DISCARD(sec)
83#else
84#define CPU_KEEP(sec)
85#define CPU_DISCARD(sec) *(.cpu##sec)
86#endif
87
1a3fb6d4 88#if defined(CONFIG_MEMORY_HOTPLUG)
eb8f6890
SR		 89#define MEM_KEEP(sec) *(.mem##sec)
90#define MEM_DISCARD(sec)
91#else
92#define MEM_KEEP(sec)
93#define MEM_DISCARD(sec) *(.mem##sec)
94#endif
95
8da3821b
SR		 96#ifdef CONFIG_FTRACE_MCOUNT_RECORD
97#define MCOUNT_REC() VMLINUX_SYMBOL(__start_mcount_loc) = .; \
98 *(__mcount_loc) \
99 VMLINUX_SYMBOL(__stop_mcount_loc) = .;
100#else
101#define MCOUNT_REC()
102#endif
eb8f6890 103
2ed84eeb 104#ifdef CONFIG_TRACE_BRANCH_PROFILING
45b79749
SR		 105#define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \
106 *(_ftrace_annotated_branch) \
107 VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .;
1f0d69a9
SR		 108#else
109#define LIKELY_PROFILE()
110#endif
111
2bcd521a
SR		 112#ifdef CONFIG_PROFILE_ALL_BRANCHES
113#define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \
114 *(_ftrace_branch) \
115 VMLINUX_SYMBOL(__stop_branch_profile) = .;
116#else
117#define BRANCH_PROFILE()
118#endif
119
b77e38aa
SR		 120#ifdef CONFIG_EVENT_TRACER
121#define FTRACE_EVENTS() VMLINUX_SYMBOL(__start_ftrace_events) = .; \
122 *(_ftrace_events) \
123 VMLINUX_SYMBOL(__stop_ftrace_events) = .;
124#else
125#define FTRACE_EVENTS()
126#endif
127
1ba28e02
LJ		 128#ifdef CONFIG_TRACING
129#define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \
130 *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \
131 VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .;
132#else
133#define TRACE_PRINTKS()
134#endif
135
bed1ffca
FW		 136#ifdef CONFIG_FTRACE_SYSCALLS
137#define TRACE_SYSCALLS() VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \
138 *(__syscalls_metadata) \
139 VMLINUX_SYMBOL(__stop_syscalls_metadata) = .;
140#else
141#define TRACE_SYSCALLS()
142#endif
143
ca967258
SR		 144/* .data section */
145#define DATA_DATA \
0e0d314e 146 *(.data) \
312b1485 147 *(.ref.data) \
eb8f6890
SR		 148 DEV_KEEP(init.data) \
149 DEV_KEEP(exit.data) \
150 CPU_KEEP(init.data) \
151 CPU_KEEP(exit.data) \
152 MEM_KEEP(init.data) \
153 MEM_KEEP(exit.data) \
8256e47c
MD		 154 . = ALIGN(8); \
155 VMLINUX_SYMBOL(__start___markers) = .; \
156 *(__markers) \
97e1c18e 157 VMLINUX_SYMBOL(__stop___markers) = .; \
7e066fb8 158 . = ALIGN(32); \
97e1c18e
MD		 159 VMLINUX_SYMBOL(__start___tracepoints) = .; \
160 *(__tracepoints) \
1f0d69a9 161 VMLINUX_SYMBOL(__stop___tracepoints) = .; \
e9d376f0
JB		 162 /* implement dynamic printk debug */ \
163 . = ALIGN(8); \
164 VMLINUX_SYMBOL(__start___verbose) = .; \
165 *(__verbose) \
166 VMLINUX_SYMBOL(__stop___verbose) = .; \
2bcd521a 167 LIKELY_PROFILE() \
b77e38aa 168 BRANCH_PROFILE() \
8a20d84d 169 TRACE_PRINTKS() \
bed1ffca
FW		 170 FTRACE_EVENTS() \
171 TRACE_SYSCALLS()
ca967258 172
ef53dae8
SR		 173/*
174 * Data section helpers
175 */
176#define NOSAVE_DATA \
177 . = ALIGN(PAGE_SIZE); \
178 VMLINUX_SYMBOL(__nosave_begin) = .; \
179 *(.data.nosave) \
180 . = ALIGN(PAGE_SIZE); \
181 VMLINUX_SYMBOL(__nosave_end) = .;
182
183#define PAGE_ALIGNED_DATA(page_align) \
184 . = ALIGN(page_align); \
185 *(.data.page_aligned)
186
187#define READ_MOSTLY_DATA(align) \
188 . = ALIGN(align); \
189 *(.data.read_mostly)
190
191#define CACHELINE_ALIGNED_DATA(align) \
192 . = ALIGN(align); \
193 *(.data.cacheline_aligned)
194
195#define INIT_TASK(align) \
196 . = ALIGN(align); \
197 *(.data.init_task)
198
199/*
200 * Read only Data
201 */
202#define RO_DATA_SECTION(align) \
4096b46f 203 . = ALIGN((align)); \
1da177e4 204 .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
6569580d 205 VMLINUX_SYMBOL(__start_rodata) = .; \
1da177e4
LT		 206 *(.rodata) *(.rodata.*) \
207 *(__vermagic) /* Kernel version magic */ \
8256e47c 208 *(__markers_strings) /* Markers: strings */ \
97e1c18e 209 *(__tracepoints_strings)/* Tracepoints: strings */ \
1da177e4
LT		 210 } \
211 \
212 .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \
213 *(.rodata1) \
214 } \
215 \
6360b1fb
JB		 216 BUG_TABLE \
217 \
1da177e4
LT		 218 /* PCI quirks */ \
219 .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
220 VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
221 *(.pci_fixup_early) \
222 VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
223 VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
224 *(.pci_fixup_header) \
225 VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
226 VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
227 *(.pci_fixup_final) \
228 VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
229 VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
230 *(.pci_fixup_enable) \
231 VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
1597cacb
AC		 232 VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
233 *(.pci_fixup_resume) \
234 VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
e1a2a51e
RW		 235 VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \
236 *(.pci_fixup_resume_early) \
237 VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \
238 VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \
239 *(.pci_fixup_suspend) \
240 VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \
1da177e4
LT		 241 } \
242 \
5658c769
DW		 243 /* Built-in firmware blobs */ \
244 .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \
245 VMLINUX_SYMBOL(__start_builtin_fw) = .; \
246 *(.builtin_fw) \
247 VMLINUX_SYMBOL(__end_builtin_fw) = .; \
248 } \
249 \
394b701c
MP		 250 /* RapidIO route ops */ \
251 .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \
252 VMLINUX_SYMBOL(__start_rio_route_ops) = .; \
253 *(.rio_route_ops) \
254 VMLINUX_SYMBOL(__end_rio_route_ops) = .; \
255 } \
256 \
63687a52
JB		 257 TRACEDATA \
258 \
1da177e4
LT		 259 /* Kernel symbol table: Normal symbols */ \
260 __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
261 VMLINUX_SYMBOL(__start___ksymtab) = .; \
262 *(__ksymtab) \
263 VMLINUX_SYMBOL(__stop___ksymtab) = .; \
264 } \
265 \
266 /* Kernel symbol table: GPL-only symbols */ \
267 __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
268 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
269 *(__ksymtab_gpl) \
270 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
271 } \
272 \
f71d20e9
AV		 273 /* Kernel symbol table: Normal unused symbols */ \
274 __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
275 VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
276 *(__ksymtab_unused) \
277 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
278 } \
279 \
280 /* Kernel symbol table: GPL-only unused symbols */ \
281 __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
282 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
283 *(__ksymtab_unused_gpl) \
284 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
285 } \
286 \
9f28bb7e
GKH		 287 /* Kernel symbol table: GPL-future-only symbols */ \
288 __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
289 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
290 *(__ksymtab_gpl_future) \
291 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
292 } \
293 \
1da177e4
LT		 294 /* Kernel symbol table: Normal symbols */ \
295 __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
296 VMLINUX_SYMBOL(__start___kcrctab) = .; \
297 *(__kcrctab) \
298 VMLINUX_SYMBOL(__stop___kcrctab) = .; \
299 } \
300 \
301 /* Kernel symbol table: GPL-only symbols */ \
302 __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
303 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
304 *(__kcrctab_gpl) \
305 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
306 } \
307 \
f71d20e9
AV		 308 /* Kernel symbol table: Normal unused symbols */ \
309 __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
310 VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
311 *(__kcrctab_unused) \
312 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
313 } \
314 \
315 /* Kernel symbol table: GPL-only unused symbols */ \
316 __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
317 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
318 *(__kcrctab_unused_gpl) \
319 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
320 } \
321 \
9f28bb7e
GKH		 322 /* Kernel symbol table: GPL-future-only symbols */ \
323 __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
324 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
325 *(__kcrctab_gpl_future) \
326 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
327 } \
328 \
1da177e4
LT		 329 /* Kernel symbol table: strings */ \
330 __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
331 *(__ksymtab_strings) \
332 } \
333 \
eb8f6890
SR		 334 /* __*init sections */ \
335 __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \
312b1485 336 *(.ref.rodata) \
8da3821b 337 MCOUNT_REC() \
eb8f6890
SR		 338 DEV_KEEP(init.rodata) \
339 DEV_KEEP(exit.rodata) \
340 CPU_KEEP(init.rodata) \
341 CPU_KEEP(exit.rodata) \
342 MEM_KEEP(init.rodata) \
343 MEM_KEEP(exit.rodata) \
344 } \
345 \
1da177e4
LT		 346 /* Built-in module parameters. */ \
347 __param : AT(ADDR(__param) - LOAD_OFFSET) { \
348 VMLINUX_SYMBOL(__start___param) = .; \
349 *(__param) \
350 VMLINUX_SYMBOL(__stop___param) = .; \
edeed305 351 . = ALIGN((align)); \
6569580d 352 VMLINUX_SYMBOL(__end_rodata) = .; \
7583ddfd 353 } \
4096b46f
SR		 354 . = ALIGN((align));
355
ef53dae8 356/* RODATA & RO_DATA provided for backward compatibility.
4096b46f 357 * All archs are supposed to use RO_DATA() */
ef53dae8
SR		 358#define RODATA RO_DATA_SECTION(4096)
359#define RO_DATA(align) RO_DATA_SECTION(align)
1da177e4
LT		 360
361#define SECURITY_INIT \
60bad7fa 362 .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
1da177e4
LT		 363 VMLINUX_SYMBOL(__security_initcall_start) = .; \
364 *(.security_initcall.init) \
365 VMLINUX_SYMBOL(__security_initcall_end) = .; \
366 }
367
7664709b
SR		 368/* .text section. Map to function alignment to avoid address changes
369 * during second ld run in second ld pass when generating System.map */
370#define TEXT_TEXT \
371 ALIGN_FUNCTION(); \
fb5e2b37 372 *(.text.hot) \
0e0d314e 373 *(.text) \
312b1485 374 *(.ref.text) \
eb8f6890
SR		 375 DEV_KEEP(init.text) \
376 DEV_KEEP(exit.text) \
377 CPU_KEEP(init.text) \
378 CPU_KEEP(exit.text) \
379 MEM_KEEP(init.text) \
fb5e2b37
JB		 380 MEM_KEEP(exit.text) \
381 *(.text.unlikely)
eb8f6890 382
7664709b 383
6d30e3a8
SR		 384/* sched.text is aling to function alignment to secure we have same
385 * address even at second ld pass when generating System.map */
1da177e4 386#define SCHED_TEXT \
6d30e3a8 387 ALIGN_FUNCTION(); \
1da177e4
LT		 388 VMLINUX_SYMBOL(__sched_text_start) = .; \
389 *(.sched.text) \
390 VMLINUX_SYMBOL(__sched_text_end) = .;
391
6d30e3a8
SR		 392/* spinlock.text is aling to function alignment to secure we have same
393 * address even at second ld pass when generating System.map */
1da177e4 394#define LOCK_TEXT \
6d30e3a8 395 ALIGN_FUNCTION(); \
1da177e4
LT		 396 VMLINUX_SYMBOL(__lock_text_start) = .; \
397 *(.spinlock.text) \
398 VMLINUX_SYMBOL(__lock_text_end) = .;
d0aaff97
PP		 399
400#define KPROBES_TEXT \
401 ALIGN_FUNCTION(); \
402 VMLINUX_SYMBOL(__kprobes_text_start) = .; \
403 *(.kprobes.text) \
404 VMLINUX_SYMBOL(__kprobes_text_end) = .;
a7d0c210 405
a0343e82
FW		 406#ifdef CONFIG_FUNCTION_GRAPH_TRACER
407#define IRQENTRY_TEXT \
408 ALIGN_FUNCTION(); \
409 VMLINUX_SYMBOL(__irqentry_text_start) = .; \
410 *(.irqentry.text) \
411 VMLINUX_SYMBOL(__irqentry_text_end) = .;
412#else
413#define IRQENTRY_TEXT
414#endif
415
37c514e3 416/* Section used for early init (in .S files) */
c80d471a 417#define HEAD_TEXT *(HEAD_TEXT_SECTION)
37c514e3 418
ef53dae8
SR		 419#define HEAD_SECTION \
420 .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) { \
421 HEAD_TEXT \
422 }
423
424/*
425 * Exception table
426 */
427#define EXCEPTION_TABLE(align) \
428 . = ALIGN(align); \
429 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \
430 VMLINUX_SYMBOL(__start___ex_table) = .; \
431 *(__ex_table) \
432 VMLINUX_SYMBOL(__stop___ex_table) = .; \
433 }
434
435/*
436 * Init task
437 */
438#define INIT_TASK_DATA(align) \
439 . = ALIGN(align); \
440 .data.init_task : { \
441 INIT_TASK \
442 }
443
01ba2bdc 444/* init and exit section handling */
eb8f6890
SR		 445#define INIT_DATA \
446 *(.init.data) \
447 DEV_DISCARD(init.data) \
eb8f6890 448 CPU_DISCARD(init.data) \
eb8f6890 449 MEM_DISCARD(init.data) \
fd6c3a8d
JB		 450 *(.init.rodata) \
451 DEV_DISCARD(init.rodata) \
452 CPU_DISCARD(init.rodata) \
e9d376f0 453 MEM_DISCARD(init.rodata)
eb8f6890
SR		 454
455#define INIT_TEXT \
456 *(.init.text) \
457 DEV_DISCARD(init.text) \
458 CPU_DISCARD(init.text) \
459 MEM_DISCARD(init.text)
460
461#define EXIT_DATA \
462 *(.exit.data) \
463 DEV_DISCARD(exit.data) \
464 DEV_DISCARD(exit.rodata) \
465 CPU_DISCARD(exit.data) \
466 CPU_DISCARD(exit.rodata) \
467 MEM_DISCARD(exit.data) \
468 MEM_DISCARD(exit.rodata)
01ba2bdc 469
eb8f6890
SR		 470#define EXIT_TEXT \
471 *(.exit.text) \
472 DEV_DISCARD(exit.text) \
473 CPU_DISCARD(exit.text) \
474 MEM_DISCARD(exit.text)
01ba2bdc 475
ef53dae8
SR		 476/*
477 * bss (Block Started by Symbol) - uninitialized data
478 * zeroed during startup
479 */
480#define SBSS \
481 .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \
482 *(.sbss) \
483 *(.scommon) \
484 }
485
486#define BSS(bss_align) \
487 . = ALIGN(bss_align); \
488 .bss : AT(ADDR(.bss) - LOAD_OFFSET) { \
489 VMLINUX_SYMBOL(__bss_start) = .; \
490 *(.bss.page_aligned) \
491 *(.dynbss) \
492 *(.bss) \
493 *(COMMON) \
494 VMLINUX_SYMBOL(__bss_stop) = .; \
495 }
496
497/*
498 * DWARF debug sections.
499 * Symbols in the DWARF debugging sections are relative to
500 * the beginning of the section so we begin them at 0.
501 */
a7d0c210
PBG		 502#define DWARF_DEBUG \
503 /* DWARF 1 */ \
504 .debug 0 : { *(.debug) } \
505 .line 0 : { *(.line) } \
506 /* GNU DWARF 1 extensions */ \
507 .debug_srcinfo 0 : { *(.debug_srcinfo) } \
508 .debug_sfnames 0 : { *(.debug_sfnames) } \
509 /* DWARF 1.1 and DWARF 2 */ \
510 .debug_aranges 0 : { *(.debug_aranges) } \
511 .debug_pubnames 0 : { *(.debug_pubnames) } \
512 /* DWARF 2 */ \
513 .debug_info 0 : { *(.debug_info \
514 .gnu.linkonce.wi.*) } \
515 .debug_abbrev 0 : { *(.debug_abbrev) } \
516 .debug_line 0 : { *(.debug_line) } \
517 .debug_frame 0 : { *(.debug_frame) } \
518 .debug_str 0 : { *(.debug_str) } \
519 .debug_loc 0 : { *(.debug_loc) } \
520 .debug_macinfo 0 : { *(.debug_macinfo) } \
521 /* SGI/MIPS DWARF 2 extensions */ \
522 .debug_weaknames 0 : { *(.debug_weaknames) } \
523 .debug_funcnames 0 : { *(.debug_funcnames) } \
524 .debug_typenames 0 : { *(.debug_typenames) } \
525 .debug_varnames 0 : { *(.debug_varnames) } \
526
527 /* Stabs debugging sections. */
528#define STABS_DEBUG \
529 .stab 0 : { *(.stab) } \
530 .stabstr 0 : { *(.stabstr) } \
531 .stab.excl 0 : { *(.stab.excl) } \
532 .stab.exclstr 0 : { *(.stab.exclstr) } \
533 .stab.index 0 : { *(.stab.index) } \
534 .stab.indexstr 0 : { *(.stab.indexstr) } \
535 .comment 0 : { *(.comment) }
9c9b8b38 536
6360b1fb 537#ifdef CONFIG_GENERIC_BUG
7664c5a1
JF		 538#define BUG_TABLE \
539 . = ALIGN(8); \
540 __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
c6de0026 541 VMLINUX_SYMBOL(__start___bug_table) = .; \
7664c5a1 542 *(__bug_table) \
c6de0026 543 VMLINUX_SYMBOL(__stop___bug_table) = .; \
7664c5a1 544 }
6360b1fb
JB		 545#else
546#define BUG_TABLE
547#endif
7664c5a1 548
63687a52
JB		 549#ifdef CONFIG_PM_TRACE
550#define TRACEDATA \
551 . = ALIGN(4); \
552 .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \
c6de0026 553 VMLINUX_SYMBOL(__tracedata_start) = .; \
63687a52 554 *(.tracedata) \
c6de0026 555 VMLINUX_SYMBOL(__tracedata_end) = .; \
63687a52
JB		 556 }
557#else
558#define TRACEDATA
559#endif
560
9c9b8b38 561#define NOTES \
cbe87121
RM		 562 .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
563 VMLINUX_SYMBOL(__start_notes) = .; \
564 *(.note.*) \
565 VMLINUX_SYMBOL(__stop_notes) = .; \
566 }
61ce1efe 567
ef53dae8
SR		 568#define INIT_SETUP(initsetup_align) \
569 . = ALIGN(initsetup_align); \
570 VMLINUX_SYMBOL(__setup_start) = .; \
571 *(.init.setup) \
572 VMLINUX_SYMBOL(__setup_end) = .;
573
61ce1efe 574#define INITCALLS \
c2147a50 575 *(.initcallearly.init) \
c6de0026 576 VMLINUX_SYMBOL(__early_initcall_end) = .; \
b3438f82
LT		 577 *(.initcall0.init) \
578 *(.initcall0s.init) \
61ce1efe 579 *(.initcall1.init) \
735a7ffb 580 *(.initcall1s.init) \
61ce1efe 581 *(.initcall2.init) \
735a7ffb 582 *(.initcall2s.init) \
61ce1efe 583 *(.initcall3.init) \
735a7ffb 584 *(.initcall3s.init) \
61ce1efe 585 *(.initcall4.init) \
735a7ffb 586 *(.initcall4s.init) \
61ce1efe 587 *(.initcall5.init) \
735a7ffb 588 *(.initcall5s.init) \
8d610dd5 589 *(.initcallrootfs.init) \
61ce1efe 590 *(.initcall6.init) \
735a7ffb
AM		 591 *(.initcall6s.init) \
592 *(.initcall7.init) \
593 *(.initcall7s.init)
61ce1efe 594
ef53dae8
SR		 595#define INIT_CALLS \
596 VMLINUX_SYMBOL(__initcall_start) = .; \
597 INITCALLS \
598 VMLINUX_SYMBOL(__initcall_end) = .;
599
600#define CON_INITCALL \
601 VMLINUX_SYMBOL(__con_initcall_start) = .; \
602 *(.con_initcall.init) \
603 VMLINUX_SYMBOL(__con_initcall_end) = .;
604
605#define SECURITY_INITCALL \
606 VMLINUX_SYMBOL(__security_initcall_start) = .; \
607 *(.security_initcall.init) \
608 VMLINUX_SYMBOL(__security_initcall_end) = .;
609
610#ifdef CONFIG_BLK_DEV_INITRD
611#define INIT_RAM_FS \
612 . = ALIGN(PAGE_SIZE); \
613 VMLINUX_SYMBOL(__initramfs_start) = .; \
614 *(.init.ramfs) \
615 VMLINUX_SYMBOL(__initramfs_end) = .;
616#else
617#define INITRAMFS
618#endif
619
3e5d8f97 620/**
6b7c38d5 621 * PERCPU_VADDR - define output section for percpu area
3e5d8f97
TH		 622 * @vaddr: explicit base address (optional)
623 * @phdr: destination PHDR (optional)
624 *
625 * Macro which expands to output section for percpu area. If @vaddr
626 * is not blank, it specifies explicit base address and all percpu
627 * symbols will be offset from the given address. If blank, @vaddr
628 * always equals @laddr + LOAD_OFFSET.
629 *
630 * @phdr defines the output PHDR to use if not blank. Be warned that
631 * output PHDR is sticky. If @phdr is specified, the next output
632 * section in the linker script will go there too. @phdr should have
633 * a leading colon.
634 *
3ac6cffe
TH		 635 * Note that this macros defines __per_cpu_load as an absolute symbol.
636 * If there is no need to put the percpu section at a predetermined
637 * address, use PERCPU().
3e5d8f97
TH		 638 */
639#define PERCPU_VADDR(vaddr, phdr) \
dba3d36b
IM		 640 VMLINUX_SYMBOL(__per_cpu_load) = .; \
641 .data.percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
6b7c38d5
TH		 642 - LOAD_OFFSET) { \
643 VMLINUX_SYMBOL(__per_cpu_start) = .; \
0bd74fa8 644 *(.data.percpu.first) \
63cc8c75 645 *(.data.percpu.page_aligned) \
5fb7dc37
FY		 646 *(.data.percpu) \
647 *(.data.percpu.shared_aligned) \
6b7c38d5
TH		 648 VMLINUX_SYMBOL(__per_cpu_end) = .; \
649 } phdr \
dba3d36b 650 . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data.percpu);
3e5d8f97
TH		 651
652/**
653 * PERCPU - define output section for percpu area, simple version
654 * @align: required alignment
655 *
656 * Align to @align and outputs output section for percpu area. This
657 * macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and
658 * __per_cpu_start will be identical.
3ac6cffe
TH		 659 *
660 * This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except
661 * that __per_cpu_load is defined as a relative symbol against
662 * .data.percpu which is required for relocatable x86_32
663 * configuration.
3e5d8f97 664 */
5fb7dc37
FY		 665#define PERCPU(align) \
666 . = ALIGN(align); \
3ac6cffe
TH		 667 .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \
668 VMLINUX_SYMBOL(__per_cpu_load) = .; \
669 VMLINUX_SYMBOL(__per_cpu_start) = .; \
670 *(.data.percpu.first) \
63cc8c75 671 *(.data.percpu.page_aligned) \
5fb7dc37
FY		 672 *(.data.percpu) \
673 *(.data.percpu.shared_aligned) \
3ac6cffe
TH		 674 VMLINUX_SYMBOL(__per_cpu_end) = .; \
675 }
ef53dae8
SR		 676
677
678/*
679 * Definition of the high level *_SECTION macros
680 * They will fit only a subset of the architectures
681 */
682
683
684/*
685 * Writeable data.
686 * All sections are combined in a single .data section.
687 * The sections following CONSTRUCTORS are arranged so their
688 * typical alignment matches.
689 * A cacheline is typical/always less than a PAGE_SIZE so
690 * the sections that has this restriction (or similar)
691 * is located before the ones requiring PAGE_SIZE alignment.
692 * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which
693 * matches the requirment of PAGE_ALIGNED_DATA.
694 *
695/* use 0 as page_align if page_aligned data is not used */
696#define RW_DATA_SECTION(cacheline, nosave, pagealigned, inittask) \
697 . = ALIGN(PAGE_SIZE); \
698 .data : AT(ADDR(.data) - LOAD_OFFSET) { \
699 INIT_TASK(inittask) \
700 CACHELINE_ALIGNED_DATA(cacheline) \
701 READ_MOSTLY_DATA(cacheline) \
702 DATA_DATA \
703 CONSTRUCTORS \
704 NOSAVE_DATA(nosave) \
705 PAGE_ALIGNED_DATA(pagealigned) \
706 }
707
708#define INIT_TEXT_SECTION(inittext_align) \
709 . = ALIGN(inittext_align); \
710 .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { \
711 VMLINUX_SYMBOL(_sinittext) = .; \
712 INIT_TEXT \
713 VMLINUX_SYMBOL(_einittext) = .; \
714 }
715
716#define INIT_DATA_SECTION(initsetup_align) \
717 .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { \
718 INIT_DATA \
719 INIT_SETUP(initsetup_align) \
720 INIT_CALLS \
721 CON_INITCALL \
722 SECURITY_INITCALL \
723 INIT_RAM_FS \
724 }
725
726#define BSS_SECTION(sbss_align, bss_align) \
727 SBSS \
728 BSS(bss_align) \
729 . = ALIGN(4); \
Linux 6.x block layer and io_uring tree(s)