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Diffstat (limited to 'include/asm-generic/vmlinux.lds.h')
-rw-r--r--include/asm-generic/vmlinux.lds.h95
1 files changed, 46 insertions, 49 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index bd297a20ab98..db22d136ad08 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -15,7 +15,7 @@
15 * HEAD_TEXT_SECTION 15 * HEAD_TEXT_SECTION
16 * INIT_TEXT_SECTION(PAGE_SIZE) 16 * INIT_TEXT_SECTION(PAGE_SIZE)
17 * INIT_DATA_SECTION(...) 17 * INIT_DATA_SECTION(...)
18 * PERCPU(CACHELINE_SIZE, PAGE_SIZE) 18 * PERCPU_SECTION(CACHELINE_SIZE)
19 * __init_end = .; 19 * __init_end = .;
20 * 20 *
21 * _stext = .; 21 * _stext = .;
@@ -170,6 +170,10 @@
170 STRUCT_ALIGN(); \ 170 STRUCT_ALIGN(); \
171 *(__tracepoints) \ 171 *(__tracepoints) \
172 /* implement dynamic printk debug */ \ 172 /* implement dynamic printk debug */ \
173 . = ALIGN(8); \
174 VMLINUX_SYMBOL(__start___jump_table) = .; \
175 *(__jump_table) \
176 VMLINUX_SYMBOL(__stop___jump_table) = .; \
173 . = ALIGN(8); \ 177 . = ALIGN(8); \
174 VMLINUX_SYMBOL(__start___verbose) = .; \ 178 VMLINUX_SYMBOL(__start___verbose) = .; \
175 *(__verbose) \ 179 *(__verbose) \
@@ -228,8 +232,6 @@
228 \ 232 \
229 BUG_TABLE \ 233 BUG_TABLE \
230 \ 234 \
231 JUMP_TABLE \
232 \
233 /* PCI quirks */ \ 235 /* PCI quirks */ \
234 .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ 236 .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
235 VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ 237 VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
@@ -274,70 +276,70 @@
274 /* Kernel symbol table: Normal symbols */ \ 276 /* Kernel symbol table: Normal symbols */ \
275 __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ 277 __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
276 VMLINUX_SYMBOL(__start___ksymtab) = .; \ 278 VMLINUX_SYMBOL(__start___ksymtab) = .; \
277 *(__ksymtab) \ 279 *(SORT(___ksymtab+*)) \
278 VMLINUX_SYMBOL(__stop___ksymtab) = .; \ 280 VMLINUX_SYMBOL(__stop___ksymtab) = .; \
279 } \ 281 } \
280 \ 282 \
281 /* Kernel symbol table: GPL-only symbols */ \ 283 /* Kernel symbol table: GPL-only symbols */ \
282 __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ 284 __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
283 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ 285 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
284 *(__ksymtab_gpl) \ 286 *(SORT(___ksymtab_gpl+*)) \
285 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ 287 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
286 } \ 288 } \
287 \ 289 \
288 /* Kernel symbol table: Normal unused symbols */ \ 290 /* Kernel symbol table: Normal unused symbols */ \
289 __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ 291 __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
290 VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ 292 VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
291 *(__ksymtab_unused) \ 293 *(SORT(___ksymtab_unused+*)) \
292 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ 294 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
293 } \ 295 } \
294 \ 296 \
295 /* Kernel symbol table: GPL-only unused symbols */ \ 297 /* Kernel symbol table: GPL-only unused symbols */ \
296 __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ 298 __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
297 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ 299 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
298 *(__ksymtab_unused_gpl) \ 300 *(SORT(___ksymtab_unused_gpl+*)) \
299 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ 301 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
300 } \ 302 } \
301 \ 303 \
302 /* Kernel symbol table: GPL-future-only symbols */ \ 304 /* Kernel symbol table: GPL-future-only symbols */ \
303 __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ 305 __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
304 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ 306 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
305 *(__ksymtab_gpl_future) \ 307 *(SORT(___ksymtab_gpl_future+*)) \
306 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ 308 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
307 } \ 309 } \
308 \ 310 \
309 /* Kernel symbol table: Normal symbols */ \ 311 /* Kernel symbol table: Normal symbols */ \
310 __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ 312 __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
311 VMLINUX_SYMBOL(__start___kcrctab) = .; \ 313 VMLINUX_SYMBOL(__start___kcrctab) = .; \
312 *(__kcrctab) \ 314 *(SORT(___kcrctab+*)) \
313 VMLINUX_SYMBOL(__stop___kcrctab) = .; \ 315 VMLINUX_SYMBOL(__stop___kcrctab) = .; \
314 } \ 316 } \
315 \ 317 \
316 /* Kernel symbol table: GPL-only symbols */ \ 318 /* Kernel symbol table: GPL-only symbols */ \
317 __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ 319 __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
318 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ 320 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
319 *(__kcrctab_gpl) \ 321 *(SORT(___kcrctab_gpl+*)) \
320 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ 322 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
321 } \ 323 } \
322 \ 324 \
323 /* Kernel symbol table: Normal unused symbols */ \ 325 /* Kernel symbol table: Normal unused symbols */ \
324 __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ 326 __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
325 VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ 327 VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
326 *(__kcrctab_unused) \ 328 *(SORT(___kcrctab_unused+*)) \
327 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ 329 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
328 } \ 330 } \
329 \ 331 \
330 /* Kernel symbol table: GPL-only unused symbols */ \ 332 /* Kernel symbol table: GPL-only unused symbols */ \
331 __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ 333 __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
332 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ 334 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
333 *(__kcrctab_unused_gpl) \ 335 *(SORT(___kcrctab_unused_gpl+*)) \
334 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ 336 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
335 } \ 337 } \
336 \ 338 \
337 /* Kernel symbol table: GPL-future-only symbols */ \ 339 /* Kernel symbol table: GPL-future-only symbols */ \
338 __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ 340 __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
339 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ 341 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
340 *(__kcrctab_gpl_future) \ 342 *(SORT(___kcrctab_gpl_future+*)) \
341 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ 343 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
342 } \ 344 } \
343 \ 345 \
@@ -589,14 +591,6 @@
589#define BUG_TABLE 591#define BUG_TABLE
590#endif 592#endif
591 593
592#define JUMP_TABLE \
593 . = ALIGN(8); \
594 __jump_table : AT(ADDR(__jump_table) - LOAD_OFFSET) { \
595 VMLINUX_SYMBOL(__start___jump_table) = .; \
596 *(__jump_table) \
597 VMLINUX_SYMBOL(__stop___jump_table) = .; \
598 }
599
600#ifdef CONFIG_PM_TRACE 594#ifdef CONFIG_PM_TRACE
601#define TRACEDATA \ 595#define TRACEDATA \
602 . = ALIGN(4); \ 596 . = ALIGN(4); \
@@ -688,6 +682,28 @@
688 } 682 }
689 683
690/** 684/**
685 * PERCPU_INPUT - the percpu input sections
686 * @cacheline: cacheline size
687 *
688 * The core percpu section names and core symbols which do not rely
689 * directly upon load addresses.
690 *
691 * @cacheline is used to align subsections to avoid false cacheline
692 * sharing between subsections for different purposes.
693 */
694#define PERCPU_INPUT(cacheline) \
695 VMLINUX_SYMBOL(__per_cpu_start) = .; \
696 *(.data..percpu..first) \
697 . = ALIGN(PAGE_SIZE); \
698 *(.data..percpu..page_aligned) \
699 . = ALIGN(cacheline); \
700 *(.data..percpu..readmostly) \
701 . = ALIGN(cacheline); \
702 *(.data..percpu) \
703 *(.data..percpu..shared_aligned) \
704 VMLINUX_SYMBOL(__per_cpu_end) = .;
705
706/**
691 * PERCPU_VADDR - define output section for percpu area 707 * PERCPU_VADDR - define output section for percpu area
692 * @cacheline: cacheline size 708 * @cacheline: cacheline size
693 * @vaddr: explicit base address (optional) 709 * @vaddr: explicit base address (optional)
@@ -709,52 +725,33 @@
709 * 725 *
710 * Note that this macros defines __per_cpu_load as an absolute symbol. 726 * Note that this macros defines __per_cpu_load as an absolute symbol.
711 * If there is no need to put the percpu section at a predetermined 727 * If there is no need to put the percpu section at a predetermined
712 * address, use PERCPU(). 728 * address, use PERCPU_SECTION.
713 */ 729 */
714#define PERCPU_VADDR(cacheline, vaddr, phdr) \ 730#define PERCPU_VADDR(cacheline, vaddr, phdr) \
715 VMLINUX_SYMBOL(__per_cpu_load) = .; \ 731 VMLINUX_SYMBOL(__per_cpu_load) = .; \
716 .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ 732 .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \
717 - LOAD_OFFSET) { \ 733 - LOAD_OFFSET) { \
718 VMLINUX_SYMBOL(__per_cpu_start) = .; \ 734 PERCPU_INPUT(cacheline) \
719 *(.data..percpu..first) \
720 . = ALIGN(PAGE_SIZE); \
721 *(.data..percpu..page_aligned) \
722 . = ALIGN(cacheline); \
723 *(.data..percpu..readmostly) \
724 . = ALIGN(cacheline); \
725 *(.data..percpu) \
726 *(.data..percpu..shared_aligned) \
727 VMLINUX_SYMBOL(__per_cpu_end) = .; \
728 } phdr \ 735 } phdr \
729 . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu); 736 . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
730 737
731/** 738/**
732 * PERCPU - define output section for percpu area, simple version 739 * PERCPU_SECTION - define output section for percpu area, simple version
733 * @cacheline: cacheline size 740 * @cacheline: cacheline size
734 * @align: required alignment
735 * 741 *
736 * Align to @align and outputs output section for percpu area. This macro 742 * Align to PAGE_SIZE and outputs output section for percpu area. This
737 * doesn't manipulate @vaddr or @phdr and __per_cpu_load and 743 * macro doesn't manipulate @vaddr or @phdr and __per_cpu_load and
738 * __per_cpu_start will be identical. 744 * __per_cpu_start will be identical.
739 * 745 *
740 * This macro is equivalent to ALIGN(@align); PERCPU_VADDR(@cacheline,,) 746 * This macro is equivalent to ALIGN(PAGE_SIZE); PERCPU_VADDR(@cacheline,,)
741 * except that __per_cpu_load is defined as a relative symbol against 747 * except that __per_cpu_load is defined as a relative symbol against
742 * .data..percpu which is required for relocatable x86_32 configuration. 748 * .data..percpu which is required for relocatable x86_32 configuration.
743 */ 749 */
744#define PERCPU(cacheline, align) \ 750#define PERCPU_SECTION(cacheline) \
745 . = ALIGN(align); \ 751 . = ALIGN(PAGE_SIZE); \
746 .data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \ 752 .data..percpu : AT(ADDR(.data..percpu) - LOAD_OFFSET) { \
747 VMLINUX_SYMBOL(__per_cpu_load) = .; \ 753 VMLINUX_SYMBOL(__per_cpu_load) = .; \
748 VMLINUX_SYMBOL(__per_cpu_start) = .; \ 754 PERCPU_INPUT(cacheline) \
749 *(.data..percpu..first) \
750 . = ALIGN(PAGE_SIZE); \
751 *(.data..percpu..page_aligned) \
752 . = ALIGN(cacheline); \
753 *(.data..percpu..readmostly) \
754 . = ALIGN(cacheline); \
755 *(.data..percpu) \
756 *(.data..percpu..shared_aligned) \
757 VMLINUX_SYMBOL(__per_cpu_end) = .; \
758 } 755 }
759 756
760 757
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-02 10:23:56 -0500