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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_TEXT_SECTION
16  *	INIT_TEXT_SECTION(PAGE_SIZE)
17  *	INIT_DATA_SECTION(...)
18  *	PERCPU_SECTION(CACHELINE_SIZE)
19  *	__init_end = .;
20  *
21  *	_stext = .;
22  *	TEXT_SECTION = 0
23  *	_etext = .;
24  *
25  *      _sdata = .;
26  *	RO_DATA(PAGE_SIZE)
27  *	RW_DATA(...)
28  *	_edata = .;
29  *
30  *	EXCEPTION_TABLE(...)
31  *
32  *	BSS_SECTION(0, 0, 0)
33  *	_end = .;
34  *
35  *	STABS_DEBUG
36  *	DWARF_DEBUG
37  *	ELF_DETAILS
38  *
39  *	DISCARDS		// must be the last
40  * }
41  *
42  * [__init_begin, __init_end] is the init section that may be freed after init
43  * 	// __init_begin and __init_end should be page aligned, so that we can
44  *	// free the whole .init memory
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  */
52 
53 #ifndef LOAD_OFFSET
54 #define LOAD_OFFSET 0
55 #endif
56 
57 /*
58  * Only some architectures want to have the .notes segment visible in
59  * a separate PT_NOTE ELF Program Header. When this happens, it needs
60  * to be visible in both the kernel text's PT_LOAD and the PT_NOTE
61  * Program Headers. In this case, though, the PT_LOAD needs to be made
62  * the default again so that all the following sections don't also end
63  * up in the PT_NOTE Program Header.
64  */
65 #ifdef EMITS_PT_NOTE
66 #define NOTES_HEADERS		:text :note
67 #define NOTES_HEADERS_RESTORE	__restore_ph : { *(.__restore_ph) } :text
68 #else
69 #define NOTES_HEADERS
70 #define NOTES_HEADERS_RESTORE
71 #endif
72 
73 /*
74  * Some architectures have non-executable read-only exception tables.
75  * They can be added to the RO_DATA segment by specifying their desired
76  * alignment.
77  */
78 #ifdef RO_EXCEPTION_TABLE_ALIGN
79 #define RO_EXCEPTION_TABLE	EXCEPTION_TABLE(RO_EXCEPTION_TABLE_ALIGN)
80 #else
81 #define RO_EXCEPTION_TABLE
82 #endif
83 
84 /* Align . to a 8 byte boundary equals to maximum function alignment. */
85 #define ALIGN_FUNCTION()  . = ALIGN(8)
86 
87 /*
88  * LD_DEAD_CODE_DATA_ELIMINATION option enables -fdata-sections, which
89  * generates .data.identifier sections, which need to be pulled in with
90  * .data. We don't want to pull in .data..other sections, which Linux
91  * has defined. Same for text and bss.
92  *
93  * With LTO_CLANG, the linker also splits sections by default, so we need
94  * these macros to combine the sections during the final link.
95  *
96  * RODATA_MAIN is not used because existing code already defines .rodata.x
97  * sections to be brought in with rodata.
98  */
99 #if defined(CONFIG_LD_DEAD_CODE_DATA_ELIMINATION) || defined(CONFIG_LTO_CLANG)
100 #define TEXT_MAIN .text .text.[0-9a-zA-Z_]*
101 #define DATA_MAIN .data .data.[0-9a-zA-Z_]* .data..L* .data..compoundliteral*
102 #define SDATA_MAIN .sdata .sdata.[0-9a-zA-Z_]*
103 #define RODATA_MAIN .rodata .rodata.[0-9a-zA-Z_]* .rodata..L*
104 #define BSS_MAIN .bss .bss.[0-9a-zA-Z_]* .bss..compoundliteral*
105 #define SBSS_MAIN .sbss .sbss.[0-9a-zA-Z_]*
106 #else
107 #define TEXT_MAIN .text
108 #define DATA_MAIN .data
109 #define SDATA_MAIN .sdata
110 #define RODATA_MAIN .rodata
111 #define BSS_MAIN .bss
112 #define SBSS_MAIN .sbss
113 #endif
114 
115 /*
116  * GCC 4.5 and later have a 32 bytes section alignment for structures.
117  * Except GCC 4.9, that feels the need to align on 64 bytes.
118  */
119 #if __GNUC__ == 4 && __GNUC_MINOR__ == 9
120 #define STRUCT_ALIGNMENT 64
121 #else
122 #define STRUCT_ALIGNMENT 32
123 #endif
124 #define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT)
125 
126 /*
127  * The order of the sched class addresses are important, as they are
128  * used to determine the order of the priority of each sched class in
129  * relation to each other.
130  */
131 #define SCHED_DATA				\
132 	STRUCT_ALIGN();				\
133 	__begin_sched_classes = .;		\
134 	*(__idle_sched_class)			\
135 	*(__fair_sched_class)			\
136 	*(__rt_sched_class)			\
137 	*(__dl_sched_class)			\
138 	*(__stop_sched_class)			\
139 	__end_sched_classes = .;
140 
141 /* The actual configuration determine if the init/exit sections
142  * are handled as text/data or they can be discarded (which
143  * often happens at runtime)
144  */
145 #ifdef CONFIG_HOTPLUG_CPU
146 #define CPU_KEEP(sec)    *(.cpu##sec)
147 #define CPU_DISCARD(sec)
148 #else
149 #define CPU_KEEP(sec)
150 #define CPU_DISCARD(sec) *(.cpu##sec)
151 #endif
152 
153 #if defined(CONFIG_MEMORY_HOTPLUG)
154 #define MEM_KEEP(sec)    *(.mem##sec)
155 #define MEM_DISCARD(sec)
156 #else
157 #define MEM_KEEP(sec)
158 #define MEM_DISCARD(sec) *(.mem##sec)
159 #endif
160 
161 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
162 /*
163  * The ftrace call sites are logged to a section whose name depends on the
164  * compiler option used. A given kernel image will only use one, AKA
165  * FTRACE_CALLSITE_SECTION. We capture all of them here to avoid header
166  * dependencies for FTRACE_CALLSITE_SECTION's definition.
167  *
168  * Need to also make ftrace_stub_graph point to ftrace_stub
169  * so that the same stub location may have different protocols
170  * and not mess up with C verifiers.
171  */
172 #define MCOUNT_REC()	. = ALIGN(8);				\
173 			__start_mcount_loc = .;			\
174 			KEEP(*(__mcount_loc))			\
175 			KEEP(*(__patchable_function_entries))	\
176 			__stop_mcount_loc = .;			\
177 			ftrace_stub_graph = ftrace_stub;
178 #else
179 # ifdef CONFIG_FUNCTION_TRACER
180 #  define MCOUNT_REC()	ftrace_stub_graph = ftrace_stub;
181 # else
182 #  define MCOUNT_REC()
183 # endif
184 #endif
185 
186 #ifdef CONFIG_TRACE_BRANCH_PROFILING
187 #define LIKELY_PROFILE()	__start_annotated_branch_profile = .;	\
188 				KEEP(*(_ftrace_annotated_branch))	\
189 				__stop_annotated_branch_profile = .;
190 #else
191 #define LIKELY_PROFILE()
192 #endif
193 
194 #ifdef CONFIG_PROFILE_ALL_BRANCHES
195 #define BRANCH_PROFILE()	__start_branch_profile = .;		\
196 				KEEP(*(_ftrace_branch))			\
197 				__stop_branch_profile = .;
198 #else
199 #define BRANCH_PROFILE()
200 #endif
201 
202 #ifdef CONFIG_KPROBES
203 #define KPROBE_BLACKLIST()	. = ALIGN(8);				      \
204 				__start_kprobe_blacklist = .;		      \
205 				KEEP(*(_kprobe_blacklist))		      \
206 				__stop_kprobe_blacklist = .;
207 #else
208 #define KPROBE_BLACKLIST()
209 #endif
210 
211 #ifdef CONFIG_FUNCTION_ERROR_INJECTION
212 #define ERROR_INJECT_WHITELIST()	STRUCT_ALIGN();			      \
213 			__start_error_injection_whitelist = .;		      \
214 			KEEP(*(_error_injection_whitelist))		      \
215 			__stop_error_injection_whitelist = .;
216 #else
217 #define ERROR_INJECT_WHITELIST()
218 #endif
219 
220 #ifdef CONFIG_EVENT_TRACING
221 #define FTRACE_EVENTS()	. = ALIGN(8);					\
222 			__start_ftrace_events = .;			\
223 			KEEP(*(_ftrace_events))				\
224 			__stop_ftrace_events = .;			\
225 			__start_ftrace_eval_maps = .;			\
226 			KEEP(*(_ftrace_eval_map))			\
227 			__stop_ftrace_eval_maps = .;
228 #else
229 #define FTRACE_EVENTS()
230 #endif
231 
232 #ifdef CONFIG_TRACING
233 #define TRACE_PRINTKS()	 __start___trace_bprintk_fmt = .;      \
234 			 KEEP(*(__trace_printk_fmt)) /* Trace_printk fmt' pointer */ \
235 			 __stop___trace_bprintk_fmt = .;
236 #define TRACEPOINT_STR() __start___tracepoint_str = .;	\
237 			 KEEP(*(__tracepoint_str)) /* Trace_printk fmt' pointer */ \
238 			 __stop___tracepoint_str = .;
239 #else
240 #define TRACE_PRINTKS()
241 #define TRACEPOINT_STR()
242 #endif
243 
244 #ifdef CONFIG_FTRACE_SYSCALLS
245 #define TRACE_SYSCALLS() . = ALIGN(8);					\
246 			 __start_syscalls_metadata = .;			\
247 			 KEEP(*(__syscalls_metadata))			\
248 			 __stop_syscalls_metadata = .;
249 #else
250 #define TRACE_SYSCALLS()
251 #endif
252 
253 #ifdef CONFIG_BPF_EVENTS
254 #define BPF_RAW_TP() STRUCT_ALIGN();					\
255 			 __start__bpf_raw_tp = .;			\
256 			 KEEP(*(__bpf_raw_tp_map))			\
257 			 __stop__bpf_raw_tp = .;
258 #else
259 #define BPF_RAW_TP()
260 #endif
261 
262 #ifdef CONFIG_SERIAL_EARLYCON
263 #define EARLYCON_TABLE() . = ALIGN(8);				\
264 			 __earlycon_table = .;			\
265 			 KEEP(*(__earlycon_table))		\
266 			 __earlycon_table_end = .;
267 #else
268 #define EARLYCON_TABLE()
269 #endif
270 
271 #ifdef CONFIG_SECURITY
272 #define LSM_TABLE()	. = ALIGN(8);					\
273 			__start_lsm_info = .;				\
274 			KEEP(*(.lsm_info.init))				\
275 			__end_lsm_info = .;
276 #define EARLY_LSM_TABLE()	. = ALIGN(8);				\
277 			__start_early_lsm_info = .;			\
278 			KEEP(*(.early_lsm_info.init))			\
279 			__end_early_lsm_info = .;
280 #else
281 #define LSM_TABLE()
282 #define EARLY_LSM_TABLE()
283 #endif
284 
285 #define ___OF_TABLE(cfg, name)	_OF_TABLE_##cfg(name)
286 #define __OF_TABLE(cfg, name)	___OF_TABLE(cfg, name)
287 #define OF_TABLE(cfg, name)	__OF_TABLE(IS_ENABLED(cfg), name)
288 #define _OF_TABLE_0(name)
289 #define _OF_TABLE_1(name)						\
290 	. = ALIGN(8);							\
291 	__##name##_of_table = .;					\
292 	KEEP(*(__##name##_of_table))					\
293 	KEEP(*(__##name##_of_table_end))
294 
295 #define TIMER_OF_TABLES()	OF_TABLE(CONFIG_TIMER_OF, timer)
296 #define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip)
297 #define CLK_OF_TABLES()		OF_TABLE(CONFIG_COMMON_CLK, clk)
298 #define RESERVEDMEM_OF_TABLES()	OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem)
299 #define CPU_METHOD_OF_TABLES()	OF_TABLE(CONFIG_SMP, cpu_method)
300 #define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method)
301 
302 #ifdef CONFIG_ACPI
303 #define ACPI_PROBE_TABLE(name)						\
304 	. = ALIGN(8);							\
305 	__##name##_acpi_probe_table = .;				\
306 	KEEP(*(__##name##_acpi_probe_table))				\
307 	__##name##_acpi_probe_table_end = .;
308 #else
309 #define ACPI_PROBE_TABLE(name)
310 #endif
311 
312 #ifdef CONFIG_THERMAL
313 #define THERMAL_TABLE(name)						\
314 	. = ALIGN(8);							\
315 	__##name##_thermal_table = .;					\
316 	KEEP(*(__##name##_thermal_table))				\
317 	__##name##_thermal_table_end = .;
318 #else
319 #define THERMAL_TABLE(name)
320 #endif
321 
322 #define KERNEL_DTB()							\
323 	STRUCT_ALIGN();							\
324 	__dtb_start = .;						\
325 	KEEP(*(.dtb.init.rodata))					\
326 	__dtb_end = .;
327 
328 /*
329  * .data section
330  */
331 #define DATA_DATA							\
332 	*(.xiptext)							\
333 	*(DATA_MAIN)							\
334 	*(.data..decrypted)						\
335 	*(.ref.data)							\
336 	*(.data..shared_aligned) /* percpu related */			\
337 	MEM_KEEP(init.data*)						\
338 	MEM_KEEP(exit.data*)						\
339 	*(.data.unlikely)						\
340 	__start_once = .;						\
341 	*(.data.once)							\
342 	__end_once = .;							\
343 	STRUCT_ALIGN();							\
344 	*(__tracepoints)						\
345 	*(__vendor_hooks)						\
346 	/* implement dynamic printk debug */				\
347 	. = ALIGN(8);							\
348 	__start___dyndbg = .;						\
349 	KEEP(*(__dyndbg))						\
350 	__stop___dyndbg = .;						\
351 	LIKELY_PROFILE()		       				\
352 	BRANCH_PROFILE()						\
353 	TRACE_PRINTKS()							\
354 	BPF_RAW_TP()							\
355 	TRACEPOINT_STR()
356 
357 /*
358  * Data section helpers
359  */
360 #define NOSAVE_DATA							\
361 	. = ALIGN(PAGE_SIZE);						\
362 	__nosave_begin = .;						\
363 	*(.data..nosave)						\
364 	. = ALIGN(PAGE_SIZE);						\
365 	__nosave_end = .;
366 
367 #define PAGE_ALIGNED_DATA(page_align)					\
368 	. = ALIGN(page_align);						\
369 	*(.data..page_aligned)						\
370 	. = ALIGN(page_align);
371 
372 #define READ_MOSTLY_DATA(align)						\
373 	. = ALIGN(align);						\
374 	*(.data..read_mostly)						\
375 	. = ALIGN(align);
376 
377 #define CACHELINE_ALIGNED_DATA(align)					\
378 	. = ALIGN(align);						\
379 	*(.data..cacheline_aligned)
380 
381 #define INIT_TASK_DATA(align)						\
382 	. = ALIGN(align);						\
383 	__start_init_task = .;						\
384 	init_thread_union = .;						\
385 	init_stack = .;							\
386 	KEEP(*(.data..init_task))					\
387 	KEEP(*(.data..init_thread_info))				\
388 	. = __start_init_task + THREAD_SIZE;				\
389 	__end_init_task = .;
390 
391 #define JUMP_TABLE_DATA							\
392 	. = ALIGN(8);							\
393 	__start___jump_table = .;					\
394 	KEEP(*(__jump_table))						\
395 	__stop___jump_table = .;
396 
397 #define STATIC_CALL_DATA						\
398 	. = ALIGN(8);							\
399 	__start_static_call_sites = .;					\
400 	KEEP(*(.static_call_sites))					\
401 	__stop_static_call_sites = .;					\
402 	__start_static_call_tramp_key = .;				\
403 	KEEP(*(.static_call_tramp_key))					\
404 	__stop_static_call_tramp_key = .;
405 
406 /*
407  * Allow architectures to handle ro_after_init data on their
408  * own by defining an empty RO_AFTER_INIT_DATA.
409  */
410 #ifndef RO_AFTER_INIT_DATA
411 #define RO_AFTER_INIT_DATA						\
412 	. = ALIGN(8);							\
413 	__start_ro_after_init = .;					\
414 	*(.data..ro_after_init .data.rel.ro.*)				\
415 	JUMP_TABLE_DATA							\
416 	STATIC_CALL_DATA						\
417 	__end_ro_after_init = .;
418 #endif
419 
420 /*
421  * Read only Data
422  */
423 #define RO_DATA(align)							\
424 	. = ALIGN((align));						\
425 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
426 		__start_rodata = .;					\
427 		*(.rodata) *(.rodata.*)					\
428 		SCHED_DATA						\
429 		RO_AFTER_INIT_DATA	/* Read only after init */	\
430 		. = ALIGN(8);						\
431 		__start___tracepoints_ptrs = .;				\
432 		KEEP(*(__tracepoints_ptrs)) /* Tracepoints: pointer array */ \
433 		__stop___tracepoints_ptrs = .;				\
434 		*(__tracepoints_strings)/* Tracepoints: strings */	\
435 	}								\
436 									\
437 	.rodata1          : AT(ADDR(.rodata1) - LOAD_OFFSET) {		\
438 		*(.rodata1)						\
439 	}								\
440 									\
441 	/* PCI quirks */						\
442 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
443 		__start_pci_fixups_early = .;				\
444 		KEEP(*(.pci_fixup_early))				\
445 		__end_pci_fixups_early = .;				\
446 		__start_pci_fixups_header = .;				\
447 		KEEP(*(.pci_fixup_header))				\
448 		__end_pci_fixups_header = .;				\
449 		__start_pci_fixups_final = .;				\
450 		KEEP(*(.pci_fixup_final))				\
451 		__end_pci_fixups_final = .;				\
452 		__start_pci_fixups_enable = .;				\
453 		KEEP(*(.pci_fixup_enable))				\
454 		__end_pci_fixups_enable = .;				\
455 		__start_pci_fixups_resume = .;				\
456 		KEEP(*(.pci_fixup_resume))				\
457 		__end_pci_fixups_resume = .;				\
458 		__start_pci_fixups_resume_early = .;			\
459 		KEEP(*(.pci_fixup_resume_early))			\
460 		__end_pci_fixups_resume_early = .;			\
461 		__start_pci_fixups_suspend = .;				\
462 		KEEP(*(.pci_fixup_suspend))				\
463 		__end_pci_fixups_suspend = .;				\
464 		__start_pci_fixups_suspend_late = .;			\
465 		KEEP(*(.pci_fixup_suspend_late))			\
466 		__end_pci_fixups_suspend_late = .;			\
467 	}								\
468 									\
469 	/* Built-in firmware blobs */					\
470 	.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) ALIGN(8) {	\
471 		__start_builtin_fw = .;					\
472 		KEEP(*(.builtin_fw))					\
473 		__end_builtin_fw = .;					\
474 	}								\
475 									\
476 	TRACEDATA							\
477 									\
478 	/* Kernel symbol table: Normal symbols */			\
479 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
480 		__start___ksymtab = .;					\
481 		KEEP(*(SORT(___ksymtab+*)))				\
482 		__stop___ksymtab = .;					\
483 	}								\
484 									\
485 	/* Kernel symbol table: GPL-only symbols */			\
486 	__ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\
487 		__start___ksymtab_gpl = .;				\
488 		KEEP(*(SORT(___ksymtab_gpl+*)))				\
489 		__stop___ksymtab_gpl = .;				\
490 	}								\
491 									\
492 	/* Kernel symbol table: Normal unused symbols */		\
493 	__ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {	\
494 		__start___ksymtab_unused = .;				\
495 		KEEP(*(SORT(___ksymtab_unused+*)))			\
496 		__stop___ksymtab_unused = .;				\
497 	}								\
498 									\
499 	/* Kernel symbol table: GPL-only unused symbols */		\
500 	__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
501 		__start___ksymtab_unused_gpl = .;			\
502 		KEEP(*(SORT(___ksymtab_unused_gpl+*)))			\
503 		__stop___ksymtab_unused_gpl = .;			\
504 	}								\
505 									\
506 	/* Kernel symbol table: GPL-future-only symbols */		\
507 	__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
508 		__start___ksymtab_gpl_future = .;			\
509 		KEEP(*(SORT(___ksymtab_gpl_future+*)))			\
510 		__stop___ksymtab_gpl_future = .;			\
511 	}								\
512 									\
513 	/* Kernel symbol table: Normal symbols */			\
514 	__kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {		\
515 		__start___kcrctab = .;					\
516 		KEEP(*(SORT(___kcrctab+*)))				\
517 		__stop___kcrctab = .;					\
518 	}								\
519 									\
520 	/* Kernel symbol table: GPL-only symbols */			\
521 	__kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {	\
522 		__start___kcrctab_gpl = .;				\
523 		KEEP(*(SORT(___kcrctab_gpl+*)))				\
524 		__stop___kcrctab_gpl = .;				\
525 	}								\
526 									\
527 	/* Kernel symbol table: Normal unused symbols */		\
528 	__kcrctab_unused  : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) {	\
529 		__start___kcrctab_unused = .;				\
530 		KEEP(*(SORT(___kcrctab_unused+*)))			\
531 		__stop___kcrctab_unused = .;				\
532 	}								\
533 									\
534 	/* Kernel symbol table: GPL-only unused symbols */		\
535 	__kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
536 		__start___kcrctab_unused_gpl = .;			\
537 		KEEP(*(SORT(___kcrctab_unused_gpl+*)))			\
538 		__stop___kcrctab_unused_gpl = .;			\
539 	}								\
540 									\
541 	/* Kernel symbol table: GPL-future-only symbols */		\
542 	__kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
543 		__start___kcrctab_gpl_future = .;			\
544 		KEEP(*(SORT(___kcrctab_gpl_future+*)))			\
545 		__stop___kcrctab_gpl_future = .;			\
546 	}								\
547 									\
548 	/* Kernel symbol table: strings */				\
549         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\
550 		*(__ksymtab_strings)					\
551 	}								\
552 									\
553 	/* __*init sections */						\
554 	__init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) {		\
555 		*(.ref.rodata)						\
556 		MEM_KEEP(init.rodata)					\
557 		MEM_KEEP(exit.rodata)					\
558 	}								\
559 									\
560 	/* Built-in module parameters. */				\
561 	__param : AT(ADDR(__param) - LOAD_OFFSET) {			\
562 		__start___param = .;					\
563 		KEEP(*(__param))					\
564 		__stop___param = .;					\
565 	}								\
566 									\
567 	/* Built-in module versions. */					\
568 	__modver : AT(ADDR(__modver) - LOAD_OFFSET) {			\
569 		__start___modver = .;					\
570 		KEEP(*(__modver))					\
571 		__stop___modver = .;					\
572 	}								\
573 									\
574 	RO_EXCEPTION_TABLE						\
575 	NOTES								\
576 	BTF								\
577 									\
578 	. = ALIGN((align));						\
579 	__end_rodata = .;
580 
581 
582 /*
583  * .text..L.cfi.jumptable.* contain Control-Flow Integrity (CFI)
584  * jump table entries.
585  */
586 #ifdef CONFIG_CFI_CLANG
587 #define TEXT_CFI_JT							\
588 		. = ALIGN(PMD_SIZE);					\
589 		__cfi_jt_start = .;					\
590 		*(.text..L.cfi.jumptable .text..L.cfi.jumptable.*)	\
591 		. = ALIGN(PMD_SIZE);					\
592 		__cfi_jt_end = .;
593 #else
594 #define TEXT_CFI_JT
595 #endif
596 
597 /*
598  * Non-instrumentable text section
599  */
600 #define NOINSTR_TEXT							\
601 		ALIGN_FUNCTION();					\
602 		__noinstr_text_start = .;				\
603 		*(.noinstr.text)					\
604 		__noinstr_text_end = .;
605 
606 /*
607  * .text section. Map to function alignment to avoid address changes
608  * during second ld run in second ld pass when generating System.map
609  *
610  * TEXT_MAIN here will match .text.fixup and .text.unlikely if dead
611  * code elimination is enabled, so these sections should be converted
612  * to use ".." first.
613  */
614 #define TEXT_TEXT							\
615 		ALIGN_FUNCTION();					\
616 		*(.text.hot .text.hot.*)				\
617 		*(TEXT_MAIN .text.fixup)				\
618 		*(.text.unlikely .text.unlikely.*)			\
619 		*(.text.unknown .text.unknown.*)			\
620 		NOINSTR_TEXT						\
621 		*(.text..refcount)					\
622 		*(.ref.text)						\
623 		*(.text.asan.* .text.tsan.*)				\
624 		TEXT_CFI_JT						\
625 	MEM_KEEP(init.text*)						\
626 	MEM_KEEP(exit.text*)						\
627 
628 
629 /* sched.text is aling to function alignment to secure we have same
630  * address even at second ld pass when generating System.map */
631 #define SCHED_TEXT							\
632 		ALIGN_FUNCTION();					\
633 		__sched_text_start = .;					\
634 		*(.sched.text)						\
635 		__sched_text_end = .;
636 
637 /* spinlock.text is aling to function alignment to secure we have same
638  * address even at second ld pass when generating System.map */
639 #define LOCK_TEXT							\
640 		ALIGN_FUNCTION();					\
641 		__lock_text_start = .;					\
642 		*(.spinlock.text)					\
643 		__lock_text_end = .;
644 
645 #define CPUIDLE_TEXT							\
646 		ALIGN_FUNCTION();					\
647 		__cpuidle_text_start = .;				\
648 		*(.cpuidle.text)					\
649 		__cpuidle_text_end = .;
650 
651 #define KPROBES_TEXT							\
652 		ALIGN_FUNCTION();					\
653 		__kprobes_text_start = .;				\
654 		*(.kprobes.text)					\
655 		__kprobes_text_end = .;
656 
657 #define ENTRY_TEXT							\
658 		ALIGN_FUNCTION();					\
659 		__entry_text_start = .;					\
660 		*(.entry.text)						\
661 		__entry_text_end = .;
662 
663 #define IRQENTRY_TEXT							\
664 		ALIGN_FUNCTION();					\
665 		__irqentry_text_start = .;				\
666 		*(.irqentry.text)					\
667 		__irqentry_text_end = .;
668 
669 #define SOFTIRQENTRY_TEXT						\
670 		ALIGN_FUNCTION();					\
671 		__softirqentry_text_start = .;				\
672 		*(.softirqentry.text)					\
673 		__softirqentry_text_end = .;
674 
675 #define STATIC_CALL_TEXT						\
676 		ALIGN_FUNCTION();					\
677 		__static_call_text_start = .;				\
678 		*(.static_call.text)					\
679 		__static_call_text_end = .;
680 
681 /* Section used for early init (in .S files) */
682 #define HEAD_TEXT  KEEP(*(.head.text))
683 
684 #define HEAD_TEXT_SECTION							\
685 	.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {		\
686 		HEAD_TEXT						\
687 	}
688 
689 /*
690  * Exception table
691  */
692 #define EXCEPTION_TABLE(align)						\
693 	. = ALIGN(align);						\
694 	__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {		\
695 		__start___ex_table = .;					\
696 		KEEP(*(__ex_table))					\
697 		__stop___ex_table = .;					\
698 	}
699 
700 /*
701  * .BTF
702  */
703 #ifdef CONFIG_DEBUG_INFO_BTF
704 #define BTF								\
705 	.BTF : AT(ADDR(.BTF) - LOAD_OFFSET) {				\
706 		__start_BTF = .;					\
707 		KEEP(*(.BTF))						\
708 		__stop_BTF = .;						\
709 	}								\
710 	. = ALIGN(4);							\
711 	.BTF_ids : AT(ADDR(.BTF_ids) - LOAD_OFFSET) {			\
712 		*(.BTF_ids)						\
713 	}
714 #else
715 #define BTF
716 #endif
717 
718 /*
719  * Init task
720  */
721 #define INIT_TASK_DATA_SECTION(align)					\
722 	. = ALIGN(align);						\
723 	.data..init_task :  AT(ADDR(.data..init_task) - LOAD_OFFSET) {	\
724 		INIT_TASK_DATA(align)					\
725 	}
726 
727 #ifdef CONFIG_CONSTRUCTORS
728 #define KERNEL_CTORS()	. = ALIGN(8);			   \
729 			__ctors_start = .;		   \
730 			KEEP(*(SORT(.ctors.*)))		   \
731 			KEEP(*(.ctors))			   \
732 			KEEP(*(SORT(.init_array.*)))	   \
733 			KEEP(*(.init_array))		   \
734 			__ctors_end = .;
735 #else
736 #define KERNEL_CTORS()
737 #endif
738 
739 /* init and exit section handling */
740 #define INIT_DATA							\
741 	KEEP(*(SORT(___kentry+*)))					\
742 	*(.init.data init.data.*)					\
743 	MEM_DISCARD(init.data*)						\
744 	KERNEL_CTORS()							\
745 	MCOUNT_REC()							\
746 	*(.init.rodata .init.rodata.*)					\
747 	FTRACE_EVENTS()							\
748 	TRACE_SYSCALLS()						\
749 	KPROBE_BLACKLIST()						\
750 	ERROR_INJECT_WHITELIST()					\
751 	MEM_DISCARD(init.rodata)					\
752 	CLK_OF_TABLES()							\
753 	RESERVEDMEM_OF_TABLES()						\
754 	TIMER_OF_TABLES()						\
755 	CPU_METHOD_OF_TABLES()						\
756 	CPUIDLE_METHOD_OF_TABLES()					\
757 	KERNEL_DTB()							\
758 	IRQCHIP_OF_MATCH_TABLE()					\
759 	ACPI_PROBE_TABLE(irqchip)					\
760 	ACPI_PROBE_TABLE(timer)						\
761 	THERMAL_TABLE(governor)						\
762 	EARLYCON_TABLE()						\
763 	LSM_TABLE()							\
764 	EARLY_LSM_TABLE()						\
765 	KUNIT_TABLE()
766 
767 #define INIT_TEXT							\
768 	*(.init.text .init.text.*)					\
769 	*(.text.startup)						\
770 	MEM_DISCARD(init.text*)
771 
772 #define EXIT_DATA							\
773 	*(.exit.data .exit.data.*)					\
774 	*(.fini_array .fini_array.*)					\
775 	*(.dtors .dtors.*)						\
776 	MEM_DISCARD(exit.data*)						\
777 	MEM_DISCARD(exit.rodata*)
778 
779 #define EXIT_TEXT							\
780 	*(.exit.text)							\
781 	*(.text.exit)							\
782 	MEM_DISCARD(exit.text)
783 
784 #define EXIT_CALL							\
785 	*(.exitcall.exit)
786 
787 /*
788  * bss (Block Started by Symbol) - uninitialized data
789  * zeroed during startup
790  */
791 #define SBSS(sbss_align)						\
792 	. = ALIGN(sbss_align);						\
793 	.sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {				\
794 		*(.dynsbss)						\
795 		*(SBSS_MAIN)						\
796 		*(.scommon)						\
797 	}
798 
799 /*
800  * Allow archectures to redefine BSS_FIRST_SECTIONS to add extra
801  * sections to the front of bss.
802  */
803 #ifndef BSS_FIRST_SECTIONS
804 #define BSS_FIRST_SECTIONS
805 #endif
806 
807 #define BSS(bss_align)							\
808 	. = ALIGN(bss_align);						\
809 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {				\
810 		BSS_FIRST_SECTIONS					\
811 		. = ALIGN(PAGE_SIZE);					\
812 		*(.bss..page_aligned)					\
813 		. = ALIGN(PAGE_SIZE);					\
814 		*(.dynbss)						\
815 		*(BSS_MAIN)						\
816 		*(COMMON)						\
817 	}
818 
819 /*
820  * DWARF debug sections.
821  * Symbols in the DWARF debugging sections are relative to
822  * the beginning of the section so we begin them at 0.
823  */
824 #define DWARF_DEBUG							\
825 		/* DWARF 1 */						\
826 		.debug          0 : { *(.debug) }			\
827 		.line           0 : { *(.line) }			\
828 		/* GNU DWARF 1 extensions */				\
829 		.debug_srcinfo  0 : { *(.debug_srcinfo) }		\
830 		.debug_sfnames  0 : { *(.debug_sfnames) }		\
831 		/* DWARF 1.1 and DWARF 2 */				\
832 		.debug_aranges  0 : { *(.debug_aranges) }		\
833 		.debug_pubnames 0 : { *(.debug_pubnames) }		\
834 		/* DWARF 2 */						\
835 		.debug_info     0 : { *(.debug_info			\
836 				.gnu.linkonce.wi.*) }			\
837 		.debug_abbrev   0 : { *(.debug_abbrev) }		\
838 		.debug_line     0 : { *(.debug_line) }			\
839 		.debug_frame    0 : { *(.debug_frame) }			\
840 		.debug_str      0 : { *(.debug_str) }			\
841 		.debug_loc      0 : { *(.debug_loc) }			\
842 		.debug_macinfo  0 : { *(.debug_macinfo) }		\
843 		.debug_pubtypes 0 : { *(.debug_pubtypes) }		\
844 		/* DWARF 3 */						\
845 		.debug_ranges	0 : { *(.debug_ranges) }		\
846 		/* SGI/MIPS DWARF 2 extensions */			\
847 		.debug_weaknames 0 : { *(.debug_weaknames) }		\
848 		.debug_funcnames 0 : { *(.debug_funcnames) }		\
849 		.debug_typenames 0 : { *(.debug_typenames) }		\
850 		.debug_varnames  0 : { *(.debug_varnames) }		\
851 		/* GNU DWARF 2 extensions */				\
852 		.debug_gnu_pubnames 0 : { *(.debug_gnu_pubnames) }	\
853 		.debug_gnu_pubtypes 0 : { *(.debug_gnu_pubtypes) }	\
854 		/* DWARF 4 */						\
855 		.debug_types	0 : { *(.debug_types) }			\
856 		/* DWARF 5 */						\
857 		.debug_addr	0 : { *(.debug_addr) }			\
858 		.debug_line_str	0 : { *(.debug_line_str) }		\
859 		.debug_loclists	0 : { *(.debug_loclists) }		\
860 		.debug_macro	0 : { *(.debug_macro) }			\
861 		.debug_names	0 : { *(.debug_names) }			\
862 		.debug_rnglists	0 : { *(.debug_rnglists) }		\
863 		.debug_str_offsets	0 : { *(.debug_str_offsets) }
864 
865 /* Stabs debugging sections. */
866 #define STABS_DEBUG							\
867 		.stab 0 : { *(.stab) }					\
868 		.stabstr 0 : { *(.stabstr) }				\
869 		.stab.excl 0 : { *(.stab.excl) }			\
870 		.stab.exclstr 0 : { *(.stab.exclstr) }			\
871 		.stab.index 0 : { *(.stab.index) }			\
872 		.stab.indexstr 0 : { *(.stab.indexstr) }
873 
874 /* Required sections not related to debugging. */
875 #define ELF_DETAILS							\
876 		.comment 0 : { *(.comment) }				\
877 		.symtab 0 : { *(.symtab) }				\
878 		.strtab 0 : { *(.strtab) }				\
879 		.shstrtab 0 : { *(.shstrtab) }
880 
881 #ifdef CONFIG_GENERIC_BUG
882 #define BUG_TABLE							\
883 	. = ALIGN(8);							\
884 	__bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) {		\
885 		__start___bug_table = .;				\
886 		KEEP(*(__bug_table))					\
887 		__stop___bug_table = .;					\
888 	}
889 #else
890 #define BUG_TABLE
891 #endif
892 
893 #ifdef CONFIG_UNWINDER_ORC
894 #define ORC_UNWIND_TABLE						\
895 	. = ALIGN(4);							\
896 	.orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) {	\
897 		__start_orc_unwind_ip = .;				\
898 		KEEP(*(.orc_unwind_ip))					\
899 		__stop_orc_unwind_ip = .;				\
900 	}								\
901 	. = ALIGN(2);							\
902 	.orc_unwind : AT(ADDR(.orc_unwind) - LOAD_OFFSET) {		\
903 		__start_orc_unwind = .;					\
904 		KEEP(*(.orc_unwind))					\
905 		__stop_orc_unwind = .;					\
906 	}								\
907 	. = ALIGN(4);							\
908 	.orc_lookup : AT(ADDR(.orc_lookup) - LOAD_OFFSET) {		\
909 		orc_lookup = .;						\
910 		. += (((SIZEOF(.text) + LOOKUP_BLOCK_SIZE - 1) /	\
911 			LOOKUP_BLOCK_SIZE) + 1) * 4;			\
912 		orc_lookup_end = .;					\
913 	}
914 #else
915 #define ORC_UNWIND_TABLE
916 #endif
917 
918 #ifdef CONFIG_PM_TRACE
919 #define TRACEDATA							\
920 	. = ALIGN(4);							\
921 	.tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {		\
922 		__tracedata_start = .;					\
923 		KEEP(*(.tracedata))					\
924 		__tracedata_end = .;					\
925 	}
926 #else
927 #define TRACEDATA
928 #endif
929 
930 #define NOTES								\
931 	.notes : AT(ADDR(.notes) - LOAD_OFFSET) {			\
932 		__start_notes = .;					\
933 		KEEP(*(.note.*))					\
934 		__stop_notes = .;					\
935 	} NOTES_HEADERS							\
936 	NOTES_HEADERS_RESTORE
937 
938 #define INIT_SETUP(initsetup_align)					\
939 		. = ALIGN(initsetup_align);				\
940 		__setup_start = .;					\
941 		KEEP(*(.init.setup))					\
942 		__setup_end = .;
943 
944 #define INIT_CALLS_LEVEL(level)						\
945 		__initcall##level##_start = .;				\
946 		KEEP(*(.initcall##level##.init))			\
947 		KEEP(*(.initcall##level##s.init))			\
948 
949 #define INIT_CALLS							\
950 		__initcall_start = .;					\
951 		KEEP(*(.initcallearly.init))				\
952 		INIT_CALLS_LEVEL(0)					\
953 		INIT_CALLS_LEVEL(1)					\
954 		INIT_CALLS_LEVEL(2)					\
955 		INIT_CALLS_LEVEL(3)					\
956 		INIT_CALLS_LEVEL(4)					\
957 		INIT_CALLS_LEVEL(5)					\
958 		INIT_CALLS_LEVEL(rootfs)				\
959 		INIT_CALLS_LEVEL(6)					\
960 		INIT_CALLS_LEVEL(7)					\
961 		__initcall_end = .;
962 
963 #define CON_INITCALL							\
964 		__con_initcall_start = .;				\
965 		KEEP(*(.con_initcall.init))				\
966 		__con_initcall_end = .;
967 
968 /* Alignment must be consistent with (kunit_suite *) in include/kunit/test.h */
969 #define KUNIT_TABLE()							\
970 		. = ALIGN(8);						\
971 		__kunit_suites_start = .;				\
972 		KEEP(*(.kunit_test_suites))				\
973 		__kunit_suites_end = .;
974 
975 #ifdef CONFIG_BLK_DEV_INITRD
976 #define INIT_RAM_FS							\
977 	. = ALIGN(4);							\
978 	__initramfs_start = .;						\
979 	KEEP(*(.init.ramfs))						\
980 	. = ALIGN(8);							\
981 	KEEP(*(.init.ramfs.info))
982 #else
983 #define INIT_RAM_FS
984 #endif
985 
986 /*
987  * Memory encryption operates on a page basis. Since we need to clear
988  * the memory encryption mask for this section, it needs to be aligned
989  * on a page boundary and be a page-size multiple in length.
990  *
991  * Note: We use a separate section so that only this section gets
992  * decrypted to avoid exposing more than we wish.
993  */
994 #ifdef CONFIG_AMD_MEM_ENCRYPT
995 #define PERCPU_DECRYPTED_SECTION					\
996 	. = ALIGN(PAGE_SIZE);						\
997 	*(.data..percpu..decrypted)					\
998 	. = ALIGN(PAGE_SIZE);
999 #else
1000 #define PERCPU_DECRYPTED_SECTION
1001 #endif
1002 
1003 
1004 /*
1005  * Default discarded sections.
1006  *
1007  * Some archs want to discard exit text/data at runtime rather than
1008  * link time due to cross-section references such as alt instructions,
1009  * bug table, eh_frame, etc.  DISCARDS must be the last of output
1010  * section definitions so that such archs put those in earlier section
1011  * definitions.
1012  */
1013 #ifdef RUNTIME_DISCARD_EXIT
1014 #define EXIT_DISCARDS
1015 #else
1016 #define EXIT_DISCARDS							\
1017 	EXIT_TEXT							\
1018 	EXIT_DATA
1019 #endif
1020 
1021 /*
1022  * Clang's -fprofile-arcs, -fsanitize=kernel-address, and
1023  * -fsanitize=thread produce unwanted sections (.eh_frame
1024  * and .init_array.*), but CONFIG_CONSTRUCTORS wants to
1025  * keep any .init_array.* sections.
1026  * https://bugs.llvm.org/show_bug.cgi?id=46478
1027  */
1028 #if defined(CONFIG_GCOV_KERNEL) || defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KCSAN) || \
1029 	defined(CONFIG_CFI_CLANG)
1030 # ifdef CONFIG_CONSTRUCTORS
1031 #  define SANITIZER_DISCARDS						\
1032 	*(.eh_frame)
1033 # else
1034 #  define SANITIZER_DISCARDS						\
1035 	*(.init_array) *(.init_array.*)					\
1036 	*(.eh_frame)
1037 # endif
1038 #else
1039 # define SANITIZER_DISCARDS
1040 #endif
1041 
1042 #define COMMON_DISCARDS							\
1043 	SANITIZER_DISCARDS						\
1044 	*(.discard)							\
1045 	*(.discard.*)							\
1046 	*(.modinfo)							\
1047 	/* ld.bfd warns about .gnu.version* even when not emitted */	\
1048 	*(.gnu.version*)						\
1049 
1050 #define DISCARDS							\
1051 	/DISCARD/ : {							\
1052 	EXIT_DISCARDS							\
1053 	EXIT_CALL							\
1054 	COMMON_DISCARDS							\
1055 	}
1056 
1057 /**
1058  * PERCPU_INPUT - the percpu input sections
1059  * @cacheline: cacheline size
1060  *
1061  * The core percpu section names and core symbols which do not rely
1062  * directly upon load addresses.
1063  *
1064  * @cacheline is used to align subsections to avoid false cacheline
1065  * sharing between subsections for different purposes.
1066  */
1067 #define PERCPU_INPUT(cacheline)						\
1068 	__per_cpu_start = .;						\
1069 	*(.data..percpu..first)						\
1070 	. = ALIGN(PAGE_SIZE);						\
1071 	*(.data..percpu..page_aligned)					\
1072 	. = ALIGN(cacheline);						\
1073 	*(.data..percpu..read_mostly)					\
1074 	. = ALIGN(cacheline);						\
1075 	*(.data..percpu)						\
1076 	*(.data..percpu..shared_aligned)				\
1077 	PERCPU_DECRYPTED_SECTION					\
1078 	__per_cpu_end = .;
1079 
1080 /**
1081  * PERCPU_VADDR - define output section for percpu area
1082  * @cacheline: cacheline size
1083  * @vaddr: explicit base address (optional)
1084  * @phdr: destination PHDR (optional)
1085  *
1086  * Macro which expands to output section for percpu area.
1087  *
1088  * @cacheline is used to align subsections to avoid false cacheline
1089  * sharing between subsections for different purposes.
1090  *
1091  * If @vaddr is not blank, it specifies explicit base address and all
1092  * percpu symbols will be offset from the given address.  If blank,
1093  * @vaddr always equals @laddr + LOAD_OFFSET.
1094  *
1095  * @phdr defines the output PHDR to use if not blank.  Be warned that
1096  * output PHDR is sticky.  If @phdr is specified, the next output
1097  * section in the linker script will go there too.  @phdr should have
1098  * a leading colon.
1099  *
1100  * Note that this macros defines __per_cpu_load as an absolute symbol.
1101  * If there is no need to put the percpu section at a predetermined
1102  * address, use PERCPU_SECTION.
1103  */
1104 #define PERCPU_VADDR(cacheline, vaddr, phdr)				\
1105 	__per_cpu_load = .;						\
1106 	.data..percpu vaddr : AT(__per_cpu_load - LOAD_OFFSET) {	\
1107 		PERCPU_INPUT(cacheline)					\
1108 	} phdr								\
1109 	. = __per_cpu_load + SIZEOF(.data..percpu);
1110 
1111 /**
1112  * PERCPU_SECTION - define output section for percpu area, simple version
1113  * @cacheline: cacheline size
1114  *
1115  * Align to PAGE_SIZE and outputs output section for percpu area.  This
1116  * macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and
1117  * __per_cpu_start will be identical.
1118  *
1119  * This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,)
1120  * except that __per_cpu_load is defined as a relative symbol against
1121  * .data..percpu which is required for relocatable x86_32 configuration.
1122  */
1123 #define PERCPU_SECTION(cacheline)					\
1124 	. = ALIGN(PAGE_SIZE);						\
1125 	.data..percpu	: AT(ADDR(.data..percpu) - LOAD_OFFSET) {	\
1126 		__per_cpu_load = .;					\
1127 		PERCPU_INPUT(cacheline)					\
1128 	}
1129 
1130 
1131 /*
1132  * Definition of the high level *_SECTION macros
1133  * They will fit only a subset of the architectures
1134  */
1135 
1136 
1137 /*
1138  * Writeable data.
1139  * All sections are combined in a single .data section.
1140  * The sections following CONSTRUCTORS are arranged so their
1141  * typical alignment matches.
1142  * A cacheline is typical/always less than a PAGE_SIZE so
1143  * the sections that has this restriction (or similar)
1144  * is located before the ones requiring PAGE_SIZE alignment.
1145  * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which
1146  * matches the requirement of PAGE_ALIGNED_DATA.
1147  *
1148  * use 0 as page_align if page_aligned data is not used */
1149 #define RW_DATA(cacheline, pagealigned, inittask)			\
1150 	. = ALIGN(PAGE_SIZE);						\
1151 	.data : AT(ADDR(.data) - LOAD_OFFSET) {				\
1152 		INIT_TASK_DATA(inittask)				\
1153 		NOSAVE_DATA						\
1154 		PAGE_ALIGNED_DATA(pagealigned)				\
1155 		CACHELINE_ALIGNED_DATA(cacheline)			\
1156 		READ_MOSTLY_DATA(cacheline)				\
1157 		DATA_DATA						\
1158 		CONSTRUCTORS						\
1159 	}								\
1160 	BUG_TABLE							\
1161 
1162 #define INIT_TEXT_SECTION(inittext_align)				\
1163 	. = ALIGN(inittext_align);					\
1164 	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {		\
1165 		_sinittext = .;						\
1166 		INIT_TEXT						\
1167 		_einittext = .;						\
1168 	}
1169 
1170 #define INIT_DATA_SECTION(initsetup_align)				\
1171 	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {		\
1172 		INIT_DATA						\
1173 		INIT_SETUP(initsetup_align)				\
1174 		INIT_CALLS						\
1175 		CON_INITCALL						\
1176 		INIT_RAM_FS						\
1177 	}
1178 
1179 #define BSS_SECTION(sbss_align, bss_align, stop_align)			\
1180 	. = ALIGN(sbss_align);						\
1181 	__bss_start = .;						\
1182 	SBSS(sbss_align)						\
1183 	BSS(bss_align)							\
1184 	. = ALIGN(stop_align);						\
1185 	__bss_stop = .;
1186