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 . function alignment. */
85 #define ALIGN_FUNCTION()  . = ALIGN(CONFIG_FUNCTION_ALIGNMENT)
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* .data.$__unnamed_* .data.$L*
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 #define STRUCT_ALIGNMENT 32
120 #define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT)
121 
122 /*
123  * The order of the sched class addresses are important, as they are
124  * used to determine the order of the priority of each sched class in
125  * relation to each other.
126  */
127 #define SCHED_DATA				\
128 	STRUCT_ALIGN();				\
129 	__sched_class_highest = .;		\
130 	*(__stop_sched_class)			\
131 	*(__dl_sched_class)			\
132 	*(__rt_sched_class)			\
133 	*(__fair_sched_class)			\
134 	*(__idle_sched_class)			\
135 	__sched_class_lowest = .;
136 
137 /* The actual configuration determine if the init/exit sections
138  * are handled as text/data or they can be discarded (which
139  * often happens at runtime)
140  */
141 #ifdef CONFIG_HOTPLUG_CPU
142 #define CPU_KEEP(sec)    *(.cpu##sec)
143 #define CPU_DISCARD(sec)
144 #else
145 #define CPU_KEEP(sec)
146 #define CPU_DISCARD(sec) *(.cpu##sec)
147 #endif
148 
149 #if defined(CONFIG_MEMORY_HOTPLUG)
150 #define MEM_KEEP(sec)    *(.mem##sec)
151 #define MEM_DISCARD(sec)
152 #else
153 #define MEM_KEEP(sec)
154 #define MEM_DISCARD(sec) *(.mem##sec)
155 #endif
156 
157 #ifndef CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE
158 #define KEEP_PATCHABLE		KEEP(*(__patchable_function_entries))
159 #define PATCHABLE_DISCARDS
160 #else
161 #define KEEP_PATCHABLE
162 #define PATCHABLE_DISCARDS	*(__patchable_function_entries)
163 #endif
164 
165 #ifndef CONFIG_ARCH_SUPPORTS_CFI_CLANG
166 /*
167  * Simply points to ftrace_stub, but with the proper protocol.
168  * Defined by the linker script in linux/vmlinux.lds.h
169  */
170 #define	FTRACE_STUB_HACK	ftrace_stub_graph = ftrace_stub;
171 #else
172 #define FTRACE_STUB_HACK
173 #endif
174 
175 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
176 /*
177  * The ftrace call sites are logged to a section whose name depends on the
178  * compiler option used. A given kernel image will only use one, AKA
179  * FTRACE_CALLSITE_SECTION. We capture all of them here to avoid header
180  * dependencies for FTRACE_CALLSITE_SECTION's definition.
181  *
182  * ftrace_ops_list_func will be defined as arch_ftrace_ops_list_func
183  * as some archs will have a different prototype for that function
184  * but ftrace_ops_list_func() will have a single prototype.
185  */
186 #define MCOUNT_REC()	. = ALIGN(8);				\
187 			__start_mcount_loc = .;			\
188 			KEEP(*(__mcount_loc))			\
189 			KEEP_PATCHABLE				\
190 			__stop_mcount_loc = .;			\
191 			FTRACE_STUB_HACK			\
192 			ftrace_ops_list_func = arch_ftrace_ops_list_func;
193 #else
194 # ifdef CONFIG_FUNCTION_TRACER
195 #  define MCOUNT_REC()	FTRACE_STUB_HACK			\
196 			ftrace_ops_list_func = arch_ftrace_ops_list_func;
197 # else
198 #  define MCOUNT_REC()
199 # endif
200 #endif
201 
202 #define BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_)	\
203 	_BEGIN_##_label_ = .;						\
204 	KEEP(*(_sec_))							\
205 	_END_##_label_ = .;
206 
207 #define BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_)	\
208 	_label_##_BEGIN_ = .;						\
209 	KEEP(*(_sec_))							\
210 	_label_##_END_ = .;
211 
212 #define BOUNDED_SECTION_BY(_sec_, _label_)				\
213 	BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, __start, __stop)
214 
215 #define BOUNDED_SECTION(_sec)	 BOUNDED_SECTION_BY(_sec, _sec)
216 
217 #define HEADERED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_, _HDR_) \
218 	_HDR_##_label_	= .;						\
219 	KEEP(*(.gnu.linkonce.##_sec_))					\
220 	BOUNDED_SECTION_PRE_LABEL(_sec_, _label_, _BEGIN_, _END_)
221 
222 #define HEADERED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_, _HDR_) \
223 	_label_##_HDR_ = .;						\
224 	KEEP(*(.gnu.linkonce.##_sec_))					\
225 	BOUNDED_SECTION_POST_LABEL(_sec_, _label_, _BEGIN_, _END_)
226 
227 #define HEADERED_SECTION_BY(_sec_, _label_)				\
228 	HEADERED_SECTION_PRE_LABEL(_sec_, _label_, __start, __stop)
229 
230 #define HEADERED_SECTION(_sec)	 HEADERED_SECTION_BY(_sec, _sec)
231 
232 #ifdef CONFIG_TRACE_BRANCH_PROFILING
233 #define LIKELY_PROFILE()						\
234 	BOUNDED_SECTION_BY(_ftrace_annotated_branch, _annotated_branch_profile)
235 #else
236 #define LIKELY_PROFILE()
237 #endif
238 
239 #ifdef CONFIG_PROFILE_ALL_BRANCHES
240 #define BRANCH_PROFILE()					\
241 	BOUNDED_SECTION_BY(_ftrace_branch, _branch_profile)
242 #else
243 #define BRANCH_PROFILE()
244 #endif
245 
246 #ifdef CONFIG_KPROBES
247 #define KPROBE_BLACKLIST()				\
248 	. = ALIGN(8);					\
249 	BOUNDED_SECTION(_kprobe_blacklist)
250 #else
251 #define KPROBE_BLACKLIST()
252 #endif
253 
254 #ifdef CONFIG_FUNCTION_ERROR_INJECTION
255 #define ERROR_INJECT_WHITELIST()			\
256 	STRUCT_ALIGN();					\
257 	BOUNDED_SECTION(_error_injection_whitelist)
258 #else
259 #define ERROR_INJECT_WHITELIST()
260 #endif
261 
262 #ifdef CONFIG_EVENT_TRACING
263 #define FTRACE_EVENTS()							\
264 	. = ALIGN(8);							\
265 	BOUNDED_SECTION(_ftrace_events)					\
266 	BOUNDED_SECTION_BY(_ftrace_eval_map, _ftrace_eval_maps)
267 #else
268 #define FTRACE_EVENTS()
269 #endif
270 
271 #ifdef CONFIG_TRACING
272 #define TRACE_PRINTKS()		BOUNDED_SECTION_BY(__trace_printk_fmt, ___trace_bprintk_fmt)
273 #define TRACEPOINT_STR()	BOUNDED_SECTION_BY(__tracepoint_str, ___tracepoint_str)
274 #else
275 #define TRACE_PRINTKS()
276 #define TRACEPOINT_STR()
277 #endif
278 
279 #ifdef CONFIG_FTRACE_SYSCALLS
280 #define TRACE_SYSCALLS()			\
281 	. = ALIGN(8);				\
282 	BOUNDED_SECTION_BY(__syscalls_metadata, _syscalls_metadata)
283 #else
284 #define TRACE_SYSCALLS()
285 #endif
286 
287 #ifdef CONFIG_BPF_EVENTS
288 #define BPF_RAW_TP() STRUCT_ALIGN();				\
289 	BOUNDED_SECTION_BY(__bpf_raw_tp_map, __bpf_raw_tp)
290 #else
291 #define BPF_RAW_TP()
292 #endif
293 
294 #ifdef CONFIG_SERIAL_EARLYCON
295 #define EARLYCON_TABLE()						\
296 	. = ALIGN(8);							\
297 	BOUNDED_SECTION_POST_LABEL(__earlycon_table, __earlycon_table, , _end)
298 #else
299 #define EARLYCON_TABLE()
300 #endif
301 
302 #ifdef CONFIG_SECURITY
303 #define LSM_TABLE()					\
304 	. = ALIGN(8);					\
305 	BOUNDED_SECTION_PRE_LABEL(.lsm_info.init, _lsm_info, __start, __end)
306 
307 #define EARLY_LSM_TABLE()						\
308 	. = ALIGN(8);							\
309 	BOUNDED_SECTION_PRE_LABEL(.early_lsm_info.init, _early_lsm_info, __start, __end)
310 #else
311 #define LSM_TABLE()
312 #define EARLY_LSM_TABLE()
313 #endif
314 
315 #define ___OF_TABLE(cfg, name)	_OF_TABLE_##cfg(name)
316 #define __OF_TABLE(cfg, name)	___OF_TABLE(cfg, name)
317 #define OF_TABLE(cfg, name)	__OF_TABLE(IS_ENABLED(cfg), name)
318 #define _OF_TABLE_0(name)
319 #define _OF_TABLE_1(name)						\
320 	. = ALIGN(8);							\
321 	__##name##_of_table = .;					\
322 	KEEP(*(__##name##_of_table))					\
323 	KEEP(*(__##name##_of_table_end))
324 
325 #define TIMER_OF_TABLES()	OF_TABLE(CONFIG_TIMER_OF, timer)
326 #define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip)
327 #define CLK_OF_TABLES()		OF_TABLE(CONFIG_COMMON_CLK, clk)
328 #define RESERVEDMEM_OF_TABLES()	OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem)
329 #define CPU_METHOD_OF_TABLES()	OF_TABLE(CONFIG_SMP, cpu_method)
330 #define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method)
331 
332 #ifdef CONFIG_ACPI
333 #define ACPI_PROBE_TABLE(name)						\
334 	. = ALIGN(8);							\
335 	BOUNDED_SECTION_POST_LABEL(__##name##_acpi_probe_table,		\
336 				   __##name##_acpi_probe_table,, _end)
337 #else
338 #define ACPI_PROBE_TABLE(name)
339 #endif
340 
341 #ifdef CONFIG_THERMAL
342 #define THERMAL_TABLE(name)						\
343 	. = ALIGN(8);							\
344 	BOUNDED_SECTION_POST_LABEL(__##name##_thermal_table,		\
345 				   __##name##_thermal_table,, _end)
346 #else
347 #define THERMAL_TABLE(name)
348 #endif
349 
350 #define KERNEL_DTB()							\
351 	STRUCT_ALIGN();							\
352 	__dtb_start = .;						\
353 	KEEP(*(.dtb.init.rodata))					\
354 	__dtb_end = .;
355 
356 /*
357  * .data section
358  */
359 #define DATA_DATA							\
360 	*(.xiptext)							\
361 	*(DATA_MAIN)							\
362 	*(.data..decrypted)						\
363 	*(.ref.data)							\
364 	*(.data..shared_aligned) /* percpu related */			\
365 	MEM_KEEP(init.data*)						\
366 	MEM_KEEP(exit.data*)						\
367 	*(.data.unlikely)						\
368 	__start_once = .;						\
369 	*(.data.once)							\
370 	__end_once = .;							\
371 	STRUCT_ALIGN();							\
372 	*(__tracepoints)						\
373 	/* implement dynamic printk debug */				\
374 	. = ALIGN(8);							\
375 	BOUNDED_SECTION_BY(__dyndbg_classes, ___dyndbg_classes)		\
376 	BOUNDED_SECTION_BY(__dyndbg, ___dyndbg)				\
377 	LIKELY_PROFILE()		       				\
378 	BRANCH_PROFILE()						\
379 	TRACE_PRINTKS()							\
380 	BPF_RAW_TP()							\
381 	TRACEPOINT_STR()
382 
383 /*
384  * Data section helpers
385  */
386 #define NOSAVE_DATA							\
387 	. = ALIGN(PAGE_SIZE);						\
388 	__nosave_begin = .;						\
389 	*(.data..nosave)						\
390 	. = ALIGN(PAGE_SIZE);						\
391 	__nosave_end = .;
392 
393 #define PAGE_ALIGNED_DATA(page_align)					\
394 	. = ALIGN(page_align);						\
395 	*(.data..page_aligned)						\
396 	. = ALIGN(page_align);
397 
398 #define READ_MOSTLY_DATA(align)						\
399 	. = ALIGN(align);						\
400 	*(.data..read_mostly)						\
401 	. = ALIGN(align);
402 
403 #define CACHELINE_ALIGNED_DATA(align)					\
404 	. = ALIGN(align);						\
405 	*(.data..cacheline_aligned)
406 
407 #define INIT_TASK_DATA(align)						\
408 	. = ALIGN(align);						\
409 	__start_init_task = .;						\
410 	init_thread_union = .;						\
411 	init_stack = .;							\
412 	KEEP(*(.data..init_task))					\
413 	KEEP(*(.data..init_thread_info))				\
414 	. = __start_init_task + THREAD_SIZE;				\
415 	__end_init_task = .;
416 
417 #define JUMP_TABLE_DATA							\
418 	. = ALIGN(8);							\
419 	BOUNDED_SECTION_BY(__jump_table, ___jump_table)
420 
421 #ifdef CONFIG_HAVE_STATIC_CALL_INLINE
422 #define STATIC_CALL_DATA						\
423 	. = ALIGN(8);							\
424 	BOUNDED_SECTION_BY(.static_call_sites, _static_call_sites)	\
425 	BOUNDED_SECTION_BY(.static_call_tramp_key, _static_call_tramp_key)
426 #else
427 #define STATIC_CALL_DATA
428 #endif
429 
430 /*
431  * Allow architectures to handle ro_after_init data on their
432  * own by defining an empty RO_AFTER_INIT_DATA.
433  */
434 #ifndef RO_AFTER_INIT_DATA
435 #define RO_AFTER_INIT_DATA						\
436 	. = ALIGN(8);							\
437 	__start_ro_after_init = .;					\
438 	*(.data..ro_after_init)						\
439 	JUMP_TABLE_DATA							\
440 	STATIC_CALL_DATA						\
441 	__end_ro_after_init = .;
442 #endif
443 
444 /*
445  * .kcfi_traps contains a list KCFI trap locations.
446  */
447 #ifndef KCFI_TRAPS
448 #ifdef CONFIG_ARCH_USES_CFI_TRAPS
449 #define KCFI_TRAPS							\
450 	__kcfi_traps : AT(ADDR(__kcfi_traps) - LOAD_OFFSET) {		\
451 		BOUNDED_SECTION_BY(.kcfi_traps, ___kcfi_traps)		\
452 	}
453 #else
454 #define KCFI_TRAPS
455 #endif
456 #endif
457 
458 /*
459  * Read only Data
460  */
461 #define RO_DATA(align)							\
462 	. = ALIGN((align));						\
463 	.rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {		\
464 		__start_rodata = .;					\
465 		*(.rodata) *(.rodata.*)					\
466 		SCHED_DATA						\
467 		RO_AFTER_INIT_DATA	/* Read only after init */	\
468 		. = ALIGN(8);						\
469 		BOUNDED_SECTION_BY(__tracepoints_ptrs, ___tracepoints_ptrs) \
470 		*(__tracepoints_strings)/* Tracepoints: strings */	\
471 	}								\
472 									\
473 	.rodata1          : AT(ADDR(.rodata1) - LOAD_OFFSET) {		\
474 		*(.rodata1)						\
475 	}								\
476 									\
477 	/* PCI quirks */						\
478 	.pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {	\
479 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_early,  _pci_fixups_early,  __start, __end) \
480 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_header, _pci_fixups_header, __start, __end) \
481 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_final,  _pci_fixups_final,  __start, __end) \
482 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_enable, _pci_fixups_enable, __start, __end) \
483 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_resume, _pci_fixups_resume, __start, __end) \
484 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_suspend, _pci_fixups_suspend, __start, __end) \
485 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_resume_early, _pci_fixups_resume_early, __start, __end) \
486 		BOUNDED_SECTION_PRE_LABEL(.pci_fixup_suspend_late, _pci_fixups_suspend_late, __start, __end) \
487 	}								\
488 									\
489 	FW_LOADER_BUILT_IN_DATA						\
490 	TRACEDATA							\
491 									\
492 	PRINTK_INDEX							\
493 									\
494 	/* Kernel symbol table: Normal symbols */			\
495 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
496 		__start___ksymtab = .;					\
497 		KEEP(*(SORT(___ksymtab+*)))				\
498 		__stop___ksymtab = .;					\
499 	}								\
500 									\
501 	/* Kernel symbol table: GPL-only symbols */			\
502 	__ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\
503 		__start___ksymtab_gpl = .;				\
504 		KEEP(*(SORT(___ksymtab_gpl+*)))				\
505 		__stop___ksymtab_gpl = .;				\
506 	}								\
507 									\
508 	/* Kernel symbol table: Normal symbols */			\
509 	__kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {		\
510 		__start___kcrctab = .;					\
511 		KEEP(*(SORT(___kcrctab+*)))				\
512 		__stop___kcrctab = .;					\
513 	}								\
514 									\
515 	/* Kernel symbol table: GPL-only symbols */			\
516 	__kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {	\
517 		__start___kcrctab_gpl = .;				\
518 		KEEP(*(SORT(___kcrctab_gpl+*)))				\
519 		__stop___kcrctab_gpl = .;				\
520 	}								\
521 									\
522 	/* Kernel symbol table: strings */				\
523         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\
524 		*(__ksymtab_strings)					\
525 	}								\
526 									\
527 	/* __*init sections */						\
528 	__init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) {		\
529 		*(.ref.rodata)						\
530 		MEM_KEEP(init.rodata)					\
531 		MEM_KEEP(exit.rodata)					\
532 	}								\
533 									\
534 	/* Built-in module parameters. */				\
535 	__param : AT(ADDR(__param) - LOAD_OFFSET) {			\
536 		BOUNDED_SECTION_BY(__param, ___param)			\
537 	}								\
538 									\
539 	/* Built-in module versions. */					\
540 	__modver : AT(ADDR(__modver) - LOAD_OFFSET) {			\
541 		BOUNDED_SECTION_BY(__modver, ___modver)			\
542 	}								\
543 									\
544 	KCFI_TRAPS							\
545 									\
546 	RO_EXCEPTION_TABLE						\
547 	NOTES								\
548 	BTF								\
549 									\
550 	. = ALIGN((align));						\
551 	__end_rodata = .;
552 
553 
554 /*
555  * Non-instrumentable text section
556  */
557 #define NOINSTR_TEXT							\
558 		ALIGN_FUNCTION();					\
559 		__noinstr_text_start = .;				\
560 		*(.noinstr.text)					\
561 		__cpuidle_text_start = .;				\
562 		*(.cpuidle.text)					\
563 		__cpuidle_text_end = .;					\
564 		__noinstr_text_end = .;
565 
566 /*
567  * .text section. Map to function alignment to avoid address changes
568  * during second ld run in second ld pass when generating System.map
569  *
570  * TEXT_MAIN here will match .text.fixup and .text.unlikely if dead
571  * code elimination is enabled, so these sections should be converted
572  * to use ".." first.
573  */
574 #define TEXT_TEXT							\
575 		ALIGN_FUNCTION();					\
576 		*(.text.hot .text.hot.*)				\
577 		*(TEXT_MAIN .text.fixup)				\
578 		*(.text.unlikely .text.unlikely.*)			\
579 		*(.text.unknown .text.unknown.*)			\
580 		NOINSTR_TEXT						\
581 		*(.text..refcount)					\
582 		*(.ref.text)						\
583 		*(.text.asan.* .text.tsan.*)				\
584 	MEM_KEEP(init.text*)						\
585 	MEM_KEEP(exit.text*)						\
586 
587 
588 /* sched.text is aling to function alignment to secure we have same
589  * address even at second ld pass when generating System.map */
590 #define SCHED_TEXT							\
591 		ALIGN_FUNCTION();					\
592 		__sched_text_start = .;					\
593 		*(.sched.text)						\
594 		__sched_text_end = .;
595 
596 /* spinlock.text is aling to function alignment to secure we have same
597  * address even at second ld pass when generating System.map */
598 #define LOCK_TEXT							\
599 		ALIGN_FUNCTION();					\
600 		__lock_text_start = .;					\
601 		*(.spinlock.text)					\
602 		__lock_text_end = .;
603 
604 #define KPROBES_TEXT							\
605 		ALIGN_FUNCTION();					\
606 		__kprobes_text_start = .;				\
607 		*(.kprobes.text)					\
608 		__kprobes_text_end = .;
609 
610 #define ENTRY_TEXT							\
611 		ALIGN_FUNCTION();					\
612 		__entry_text_start = .;					\
613 		*(.entry.text)						\
614 		__entry_text_end = .;
615 
616 #define IRQENTRY_TEXT							\
617 		ALIGN_FUNCTION();					\
618 		__irqentry_text_start = .;				\
619 		*(.irqentry.text)					\
620 		__irqentry_text_end = .;
621 
622 #define SOFTIRQENTRY_TEXT						\
623 		ALIGN_FUNCTION();					\
624 		__softirqentry_text_start = .;				\
625 		*(.softirqentry.text)					\
626 		__softirqentry_text_end = .;
627 
628 #define STATIC_CALL_TEXT						\
629 		ALIGN_FUNCTION();					\
630 		__static_call_text_start = .;				\
631 		*(.static_call.text)					\
632 		__static_call_text_end = .;
633 
634 /* Section used for early init (in .S files) */
635 #define HEAD_TEXT  KEEP(*(.head.text))
636 
637 #define HEAD_TEXT_SECTION							\
638 	.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {		\
639 		HEAD_TEXT						\
640 	}
641 
642 /*
643  * Exception table
644  */
645 #define EXCEPTION_TABLE(align)						\
646 	. = ALIGN(align);						\
647 	__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {		\
648 		BOUNDED_SECTION_BY(__ex_table, ___ex_table)		\
649 	}
650 
651 /*
652  * .BTF
653  */
654 #ifdef CONFIG_DEBUG_INFO_BTF
655 #define BTF								\
656 	.BTF : AT(ADDR(.BTF) - LOAD_OFFSET) {				\
657 		BOUNDED_SECTION_BY(.BTF, _BTF)				\
658 	}								\
659 	. = ALIGN(4);							\
660 	.BTF_ids : AT(ADDR(.BTF_ids) - LOAD_OFFSET) {			\
661 		*(.BTF_ids)						\
662 	}
663 #else
664 #define BTF
665 #endif
666 
667 /*
668  * Init task
669  */
670 #define INIT_TASK_DATA_SECTION(align)					\
671 	. = ALIGN(align);						\
672 	.data..init_task :  AT(ADDR(.data..init_task) - LOAD_OFFSET) {	\
673 		INIT_TASK_DATA(align)					\
674 	}
675 
676 #ifdef CONFIG_CONSTRUCTORS
677 #define KERNEL_CTORS()	. = ALIGN(8);			   \
678 			__ctors_start = .;		   \
679 			KEEP(*(SORT(.ctors.*)))		   \
680 			KEEP(*(.ctors))			   \
681 			KEEP(*(SORT(.init_array.*)))	   \
682 			KEEP(*(.init_array))		   \
683 			__ctors_end = .;
684 #else
685 #define KERNEL_CTORS()
686 #endif
687 
688 /* init and exit section handling */
689 #define INIT_DATA							\
690 	KEEP(*(SORT(___kentry+*)))					\
691 	*(.init.data init.data.*)					\
692 	MEM_DISCARD(init.data*)						\
693 	KERNEL_CTORS()							\
694 	MCOUNT_REC()							\
695 	*(.init.rodata .init.rodata.*)					\
696 	FTRACE_EVENTS()							\
697 	TRACE_SYSCALLS()						\
698 	KPROBE_BLACKLIST()						\
699 	ERROR_INJECT_WHITELIST()					\
700 	MEM_DISCARD(init.rodata)					\
701 	CLK_OF_TABLES()							\
702 	RESERVEDMEM_OF_TABLES()						\
703 	TIMER_OF_TABLES()						\
704 	CPU_METHOD_OF_TABLES()						\
705 	CPUIDLE_METHOD_OF_TABLES()					\
706 	KERNEL_DTB()							\
707 	IRQCHIP_OF_MATCH_TABLE()					\
708 	ACPI_PROBE_TABLE(irqchip)					\
709 	ACPI_PROBE_TABLE(timer)						\
710 	THERMAL_TABLE(governor)						\
711 	EARLYCON_TABLE()						\
712 	LSM_TABLE()							\
713 	EARLY_LSM_TABLE()						\
714 	KUNIT_TABLE()
715 
716 #define INIT_TEXT							\
717 	*(.init.text .init.text.*)					\
718 	*(.text.startup)						\
719 	MEM_DISCARD(init.text*)
720 
721 #define EXIT_DATA							\
722 	*(.exit.data .exit.data.*)					\
723 	*(.fini_array .fini_array.*)					\
724 	*(.dtors .dtors.*)						\
725 	MEM_DISCARD(exit.data*)						\
726 	MEM_DISCARD(exit.rodata*)
727 
728 #define EXIT_TEXT							\
729 	*(.exit.text)							\
730 	*(.text.exit)							\
731 	MEM_DISCARD(exit.text)
732 
733 #define EXIT_CALL							\
734 	*(.exitcall.exit)
735 
736 /*
737  * bss (Block Started by Symbol) - uninitialized data
738  * zeroed during startup
739  */
740 #define SBSS(sbss_align)						\
741 	. = ALIGN(sbss_align);						\
742 	.sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {				\
743 		*(.dynsbss)						\
744 		*(SBSS_MAIN)						\
745 		*(.scommon)						\
746 	}
747 
748 /*
749  * Allow archectures to redefine BSS_FIRST_SECTIONS to add extra
750  * sections to the front of bss.
751  */
752 #ifndef BSS_FIRST_SECTIONS
753 #define BSS_FIRST_SECTIONS
754 #endif
755 
756 #define BSS(bss_align)							\
757 	. = ALIGN(bss_align);						\
758 	.bss : AT(ADDR(.bss) - LOAD_OFFSET) {				\
759 		BSS_FIRST_SECTIONS					\
760 		. = ALIGN(PAGE_SIZE);					\
761 		*(.bss..page_aligned)					\
762 		. = ALIGN(PAGE_SIZE);					\
763 		*(.dynbss)						\
764 		*(BSS_MAIN)						\
765 		*(COMMON)						\
766 	}
767 
768 /*
769  * DWARF debug sections.
770  * Symbols in the DWARF debugging sections are relative to
771  * the beginning of the section so we begin them at 0.
772  */
773 #define DWARF_DEBUG							\
774 		/* DWARF 1 */						\
775 		.debug          0 : { *(.debug) }			\
776 		.line           0 : { *(.line) }			\
777 		/* GNU DWARF 1 extensions */				\
778 		.debug_srcinfo  0 : { *(.debug_srcinfo) }		\
779 		.debug_sfnames  0 : { *(.debug_sfnames) }		\
780 		/* DWARF 1.1 and DWARF 2 */				\
781 		.debug_aranges  0 : { *(.debug_aranges) }		\
782 		.debug_pubnames 0 : { *(.debug_pubnames) }		\
783 		/* DWARF 2 */						\
784 		.debug_info     0 : { *(.debug_info			\
785 				.gnu.linkonce.wi.*) }			\
786 		.debug_abbrev   0 : { *(.debug_abbrev) }		\
787 		.debug_line     0 : { *(.debug_line) }			\
788 		.debug_frame    0 : { *(.debug_frame) }			\
789 		.debug_str      0 : { *(.debug_str) }			\
790 		.debug_loc      0 : { *(.debug_loc) }			\
791 		.debug_macinfo  0 : { *(.debug_macinfo) }		\
792 		.debug_pubtypes 0 : { *(.debug_pubtypes) }		\
793 		/* DWARF 3 */						\
794 		.debug_ranges	0 : { *(.debug_ranges) }		\
795 		/* SGI/MIPS DWARF 2 extensions */			\
796 		.debug_weaknames 0 : { *(.debug_weaknames) }		\
797 		.debug_funcnames 0 : { *(.debug_funcnames) }		\
798 		.debug_typenames 0 : { *(.debug_typenames) }		\
799 		.debug_varnames  0 : { *(.debug_varnames) }		\
800 		/* GNU DWARF 2 extensions */				\
801 		.debug_gnu_pubnames 0 : { *(.debug_gnu_pubnames) }	\
802 		.debug_gnu_pubtypes 0 : { *(.debug_gnu_pubtypes) }	\
803 		/* DWARF 4 */						\
804 		.debug_types	0 : { *(.debug_types) }			\
805 		/* DWARF 5 */						\
806 		.debug_addr	0 : { *(.debug_addr) }			\
807 		.debug_line_str	0 : { *(.debug_line_str) }		\
808 		.debug_loclists	0 : { *(.debug_loclists) }		\
809 		.debug_macro	0 : { *(.debug_macro) }			\
810 		.debug_names	0 : { *(.debug_names) }			\
811 		.debug_rnglists	0 : { *(.debug_rnglists) }		\
812 		.debug_str_offsets	0 : { *(.debug_str_offsets) }
813 
814 /* Stabs debugging sections. */
815 #define STABS_DEBUG							\
816 		.stab 0 : { *(.stab) }					\
817 		.stabstr 0 : { *(.stabstr) }				\
818 		.stab.excl 0 : { *(.stab.excl) }			\
819 		.stab.exclstr 0 : { *(.stab.exclstr) }			\
820 		.stab.index 0 : { *(.stab.index) }			\
821 		.stab.indexstr 0 : { *(.stab.indexstr) }
822 
823 /* Required sections not related to debugging. */
824 #define ELF_DETAILS							\
825 		.comment 0 : { *(.comment) }				\
826 		.symtab 0 : { *(.symtab) }				\
827 		.strtab 0 : { *(.strtab) }				\
828 		.shstrtab 0 : { *(.shstrtab) }
829 
830 #ifdef CONFIG_GENERIC_BUG
831 #define BUG_TABLE							\
832 	. = ALIGN(8);							\
833 	__bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) {		\
834 		BOUNDED_SECTION_BY(__bug_table, ___bug_table)		\
835 	}
836 #else
837 #define BUG_TABLE
838 #endif
839 
840 #ifdef CONFIG_UNWINDER_ORC
841 #define ORC_UNWIND_TABLE						\
842 	. = ALIGN(4);							\
843 	.orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) {	\
844 		BOUNDED_SECTION_BY(.orc_unwind_ip, _orc_unwind_ip)	\
845 	}								\
846 	. = ALIGN(2);							\
847 	.orc_unwind : AT(ADDR(.orc_unwind) - LOAD_OFFSET) {		\
848 		BOUNDED_SECTION_BY(.orc_unwind, _orc_unwind)		\
849 	}								\
850 	text_size = _etext - _stext;					\
851 	. = ALIGN(4);							\
852 	.orc_lookup : AT(ADDR(.orc_lookup) - LOAD_OFFSET) {		\
853 		orc_lookup = .;						\
854 		. += (((text_size + LOOKUP_BLOCK_SIZE - 1) /		\
855 			LOOKUP_BLOCK_SIZE) + 1) * 4;			\
856 		orc_lookup_end = .;					\
857 	}
858 #else
859 #define ORC_UNWIND_TABLE
860 #endif
861 
862 /* Built-in firmware blobs */
863 #ifdef CONFIG_FW_LOADER
864 #define FW_LOADER_BUILT_IN_DATA						\
865 	.builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) ALIGN(8) {	\
866 		BOUNDED_SECTION_PRE_LABEL(.builtin_fw, _builtin_fw, __start, __end) \
867 	}
868 #else
869 #define FW_LOADER_BUILT_IN_DATA
870 #endif
871 
872 #ifdef CONFIG_PM_TRACE
873 #define TRACEDATA							\
874 	. = ALIGN(4);							\
875 	.tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {		\
876 		BOUNDED_SECTION_POST_LABEL(.tracedata, __tracedata, _start, _end) \
877 	}
878 #else
879 #define TRACEDATA
880 #endif
881 
882 #ifdef CONFIG_PRINTK_INDEX
883 #define PRINTK_INDEX							\
884 	.printk_index : AT(ADDR(.printk_index) - LOAD_OFFSET) {		\
885 		BOUNDED_SECTION_BY(.printk_index, _printk_index)	\
886 	}
887 #else
888 #define PRINTK_INDEX
889 #endif
890 
891 /*
892  * Discard .note.GNU-stack, which is emitted as PROGBITS by the compiler.
893  * Otherwise, the type of .notes section would become PROGBITS instead of NOTES.
894  *
895  * Also, discard .note.gnu.property, otherwise it forces the notes section to
896  * be 8-byte aligned which causes alignment mismatches with the kernel's custom
897  * 4-byte aligned notes.
898  */
899 #define NOTES								\
900 	/DISCARD/ : {							\
901 		*(.note.GNU-stack)					\
902 		*(.note.gnu.property)					\
903 	}								\
904 	.notes : AT(ADDR(.notes) - LOAD_OFFSET) {			\
905 		BOUNDED_SECTION_BY(.note.*, _notes)			\
906 	} NOTES_HEADERS							\
907 	NOTES_HEADERS_RESTORE
908 
909 #define INIT_SETUP(initsetup_align)					\
910 		. = ALIGN(initsetup_align);				\
911 		BOUNDED_SECTION_POST_LABEL(.init.setup, __setup, _start, _end)
912 
913 #define INIT_CALLS_LEVEL(level)						\
914 		__initcall##level##_start = .;				\
915 		KEEP(*(.initcall##level##.init))			\
916 		KEEP(*(.initcall##level##s.init))			\
917 
918 #define INIT_CALLS							\
919 		__initcall_start = .;					\
920 		KEEP(*(.initcallearly.init))				\
921 		INIT_CALLS_LEVEL(0)					\
922 		INIT_CALLS_LEVEL(1)					\
923 		INIT_CALLS_LEVEL(2)					\
924 		INIT_CALLS_LEVEL(3)					\
925 		INIT_CALLS_LEVEL(4)					\
926 		INIT_CALLS_LEVEL(5)					\
927 		INIT_CALLS_LEVEL(rootfs)				\
928 		INIT_CALLS_LEVEL(6)					\
929 		INIT_CALLS_LEVEL(7)					\
930 		__initcall_end = .;
931 
932 #define CON_INITCALL							\
933 	BOUNDED_SECTION_POST_LABEL(.con_initcall.init, __con_initcall, _start, _end)
934 
935 /* Alignment must be consistent with (kunit_suite *) in include/kunit/test.h */
936 #define KUNIT_TABLE()							\
937 		. = ALIGN(8);						\
938 		BOUNDED_SECTION_POST_LABEL(.kunit_test_suites, __kunit_suites, _start, _end)
939 
940 #ifdef CONFIG_BLK_DEV_INITRD
941 #define INIT_RAM_FS							\
942 	. = ALIGN(4);							\
943 	__initramfs_start = .;						\
944 	KEEP(*(.init.ramfs))						\
945 	. = ALIGN(8);							\
946 	KEEP(*(.init.ramfs.info))
947 #else
948 #define INIT_RAM_FS
949 #endif
950 
951 /*
952  * Memory encryption operates on a page basis. Since we need to clear
953  * the memory encryption mask for this section, it needs to be aligned
954  * on a page boundary and be a page-size multiple in length.
955  *
956  * Note: We use a separate section so that only this section gets
957  * decrypted to avoid exposing more than we wish.
958  */
959 #ifdef CONFIG_AMD_MEM_ENCRYPT
960 #define PERCPU_DECRYPTED_SECTION					\
961 	. = ALIGN(PAGE_SIZE);						\
962 	*(.data..percpu..decrypted)					\
963 	. = ALIGN(PAGE_SIZE);
964 #else
965 #define PERCPU_DECRYPTED_SECTION
966 #endif
967 
968 
969 /*
970  * Default discarded sections.
971  *
972  * Some archs want to discard exit text/data at runtime rather than
973  * link time due to cross-section references such as alt instructions,
974  * bug table, eh_frame, etc.  DISCARDS must be the last of output
975  * section definitions so that such archs put those in earlier section
976  * definitions.
977  */
978 #ifdef RUNTIME_DISCARD_EXIT
979 #define EXIT_DISCARDS
980 #else
981 #define EXIT_DISCARDS							\
982 	EXIT_TEXT							\
983 	EXIT_DATA
984 #endif
985 
986 /*
987  * Clang's -fprofile-arcs, -fsanitize=kernel-address, and
988  * -fsanitize=thread produce unwanted sections (.eh_frame
989  * and .init_array.*), but CONFIG_CONSTRUCTORS wants to
990  * keep any .init_array.* sections.
991  * https://bugs.llvm.org/show_bug.cgi?id=46478
992  */
993 #ifdef CONFIG_UNWIND_TABLES
994 #define DISCARD_EH_FRAME
995 #else
996 #define DISCARD_EH_FRAME	*(.eh_frame)
997 #endif
998 #if defined(CONFIG_GCOV_KERNEL) || defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KCSAN)
999 # ifdef CONFIG_CONSTRUCTORS
1000 #  define SANITIZER_DISCARDS						\
1001 	DISCARD_EH_FRAME
1002 # else
1003 #  define SANITIZER_DISCARDS						\
1004 	*(.init_array) *(.init_array.*)					\
1005 	DISCARD_EH_FRAME
1006 # endif
1007 #else
1008 # define SANITIZER_DISCARDS
1009 #endif
1010 
1011 #define COMMON_DISCARDS							\
1012 	SANITIZER_DISCARDS						\
1013 	PATCHABLE_DISCARDS						\
1014 	*(.discard)							\
1015 	*(.discard.*)							\
1016 	*(.modinfo)							\
1017 	/* ld.bfd warns about .gnu.version* even when not emitted */	\
1018 	*(.gnu.version*)						\
1019 
1020 #define DISCARDS							\
1021 	/DISCARD/ : {							\
1022 	EXIT_DISCARDS							\
1023 	EXIT_CALL							\
1024 	COMMON_DISCARDS							\
1025 	}
1026 
1027 /**
1028  * PERCPU_INPUT - the percpu input sections
1029  * @cacheline: cacheline size
1030  *
1031  * The core percpu section names and core symbols which do not rely
1032  * directly upon load addresses.
1033  *
1034  * @cacheline is used to align subsections to avoid false cacheline
1035  * sharing between subsections for different purposes.
1036  */
1037 #define PERCPU_INPUT(cacheline)						\
1038 	__per_cpu_start = .;						\
1039 	*(.data..percpu..first)						\
1040 	. = ALIGN(PAGE_SIZE);						\
1041 	*(.data..percpu..page_aligned)					\
1042 	. = ALIGN(cacheline);						\
1043 	*(.data..percpu..read_mostly)					\
1044 	. = ALIGN(cacheline);						\
1045 	*(.data..percpu)						\
1046 	*(.data..percpu..shared_aligned)				\
1047 	PERCPU_DECRYPTED_SECTION					\
1048 	__per_cpu_end = .;
1049 
1050 /**
1051  * PERCPU_VADDR - define output section for percpu area
1052  * @cacheline: cacheline size
1053  * @vaddr: explicit base address (optional)
1054  * @phdr: destination PHDR (optional)
1055  *
1056  * Macro which expands to output section for percpu area.
1057  *
1058  * @cacheline is used to align subsections to avoid false cacheline
1059  * sharing between subsections for different purposes.
1060  *
1061  * If @vaddr is not blank, it specifies explicit base address and all
1062  * percpu symbols will be offset from the given address.  If blank,
1063  * @vaddr always equals @laddr + LOAD_OFFSET.
1064  *
1065  * @phdr defines the output PHDR to use if not blank.  Be warned that
1066  * output PHDR is sticky.  If @phdr is specified, the next output
1067  * section in the linker script will go there too.  @phdr should have
1068  * a leading colon.
1069  *
1070  * Note that this macros defines __per_cpu_load as an absolute symbol.
1071  * If there is no need to put the percpu section at a predetermined
1072  * address, use PERCPU_SECTION.
1073  */
1074 #define PERCPU_VADDR(cacheline, vaddr, phdr)				\
1075 	__per_cpu_load = .;						\
1076 	.data..percpu vaddr : AT(__per_cpu_load - LOAD_OFFSET) {	\
1077 		PERCPU_INPUT(cacheline)					\
1078 	} phdr								\
1079 	. = __per_cpu_load + SIZEOF(.data..percpu);
1080 
1081 /**
1082  * PERCPU_SECTION - define output section for percpu area, simple version
1083  * @cacheline: cacheline size
1084  *
1085  * Align to PAGE_SIZE and outputs output section for percpu area.  This
1086  * macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and
1087  * __per_cpu_start will be identical.
1088  *
1089  * This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,)
1090  * except that __per_cpu_load is defined as a relative symbol against
1091  * .data..percpu which is required for relocatable x86_32 configuration.
1092  */
1093 #define PERCPU_SECTION(cacheline)					\
1094 	. = ALIGN(PAGE_SIZE);						\
1095 	.data..percpu	: AT(ADDR(.data..percpu) - LOAD_OFFSET) {	\
1096 		__per_cpu_load = .;					\
1097 		PERCPU_INPUT(cacheline)					\
1098 	}
1099 
1100 
1101 /*
1102  * Definition of the high level *_SECTION macros
1103  * They will fit only a subset of the architectures
1104  */
1105 
1106 
1107 /*
1108  * Writeable data.
1109  * All sections are combined in a single .data section.
1110  * The sections following CONSTRUCTORS are arranged so their
1111  * typical alignment matches.
1112  * A cacheline is typical/always less than a PAGE_SIZE so
1113  * the sections that has this restriction (or similar)
1114  * is located before the ones requiring PAGE_SIZE alignment.
1115  * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which
1116  * matches the requirement of PAGE_ALIGNED_DATA.
1117  *
1118  * use 0 as page_align if page_aligned data is not used */
1119 #define RW_DATA(cacheline, pagealigned, inittask)			\
1120 	. = ALIGN(PAGE_SIZE);						\
1121 	.data : AT(ADDR(.data) - LOAD_OFFSET) {				\
1122 		INIT_TASK_DATA(inittask)				\
1123 		NOSAVE_DATA						\
1124 		PAGE_ALIGNED_DATA(pagealigned)				\
1125 		CACHELINE_ALIGNED_DATA(cacheline)			\
1126 		READ_MOSTLY_DATA(cacheline)				\
1127 		DATA_DATA						\
1128 		CONSTRUCTORS						\
1129 	}								\
1130 	BUG_TABLE							\
1131 
1132 #define INIT_TEXT_SECTION(inittext_align)				\
1133 	. = ALIGN(inittext_align);					\
1134 	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {		\
1135 		_sinittext = .;						\
1136 		INIT_TEXT						\
1137 		_einittext = .;						\
1138 	}
1139 
1140 #define INIT_DATA_SECTION(initsetup_align)				\
1141 	.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {		\
1142 		INIT_DATA						\
1143 		INIT_SETUP(initsetup_align)				\
1144 		INIT_CALLS						\
1145 		CON_INITCALL						\
1146 		INIT_RAM_FS						\
1147 	}
1148 
1149 #define BSS_SECTION(sbss_align, bss_align, stop_align)			\
1150 	. = ALIGN(sbss_align);						\
1151 	__bss_start = .;						\
1152 	SBSS(sbss_align)						\
1153 	BSS(bss_align)							\
1154 	. = ALIGN(stop_align);						\
1155 	__bss_stop = .;
1156