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