]> git.openfabrics.org - ~shefty/rdma-dev.git/blob - include/asm-generic/vmlinux.lds.h
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[~shefty/rdma-dev.git] / include / asm-generic / vmlinux.lds.h
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(PAGE_SIZE)
19  *      __init_end = .;
20  *
21  *      _stext = .;
22  *      TEXT_SECTION = 0
23  *      _etext = .;
24  *
25  *      _sdata = .;
26  *      RO_DATA_SECTION(PAGE_SIZE)
27  *      RW_DATA_SECTION(...)
28  *      _edata = .;
29  *
30  *      EXCEPTION_TABLE(...)
31  *      NOTES
32  *
33  *      BSS_SECTION(0, 0, 0)
34  *      _end = .;
35  *
36  *      STABS_DEBUG
37  *      DWARF_DEBUG
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  * [_stext, _etext] is the text section
44  * [_sdata, _edata] is the data section
45  *
46  * Some of the included output section have their own set of constants.
47  * Examples are: [__initramfs_start, __initramfs_end] for initramfs and
48  *               [__nosave_begin, __nosave_end] for the nosave data
49  */
50
51 #ifndef LOAD_OFFSET
52 #define LOAD_OFFSET 0
53 #endif
54
55 #ifndef SYMBOL_PREFIX
56 #define VMLINUX_SYMBOL(sym) sym
57 #else
58 #define PASTE2(x,y) x##y
59 #define PASTE(x,y) PASTE2(x,y)
60 #define VMLINUX_SYMBOL(sym) PASTE(SYMBOL_PREFIX, sym)
61 #endif
62
63 /* Align . to a 8 byte boundary equals to maximum function alignment. */
64 #define ALIGN_FUNCTION()  . = ALIGN(8)
65
66 /*
67  * Align to a 32 byte boundary equal to the
68  * alignment gcc 4.5 uses for a struct
69  */
70 #define STRUCT_ALIGN() . = ALIGN(32)
71
72 /* The actual configuration determine if the init/exit sections
73  * are handled as text/data or they can be discarded (which
74  * often happens at runtime)
75  */
76 #ifdef CONFIG_HOTPLUG
77 #define DEV_KEEP(sec)    *(.dev##sec)
78 #define DEV_DISCARD(sec)
79 #else
80 #define DEV_KEEP(sec)
81 #define DEV_DISCARD(sec) *(.dev##sec)
82 #endif
83
84 #ifdef CONFIG_HOTPLUG_CPU
85 #define CPU_KEEP(sec)    *(.cpu##sec)
86 #define CPU_DISCARD(sec)
87 #else
88 #define CPU_KEEP(sec)
89 #define CPU_DISCARD(sec) *(.cpu##sec)
90 #endif
91
92 #if defined(CONFIG_MEMORY_HOTPLUG)
93 #define MEM_KEEP(sec)    *(.mem##sec)
94 #define MEM_DISCARD(sec)
95 #else
96 #define MEM_KEEP(sec)
97 #define MEM_DISCARD(sec) *(.mem##sec)
98 #endif
99
100 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
101 #define MCOUNT_REC()    . = ALIGN(8);                           \
102                         VMLINUX_SYMBOL(__start_mcount_loc) = .; \
103                         *(__mcount_loc)                         \
104                         VMLINUX_SYMBOL(__stop_mcount_loc) = .;
105 #else
106 #define MCOUNT_REC()
107 #endif
108
109 #ifdef CONFIG_TRACE_BRANCH_PROFILING
110 #define LIKELY_PROFILE()        VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \
111                                 *(_ftrace_annotated_branch)                           \
112                                 VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .;
113 #else
114 #define LIKELY_PROFILE()
115 #endif
116
117 #ifdef CONFIG_PROFILE_ALL_BRANCHES
118 #define BRANCH_PROFILE()        VMLINUX_SYMBOL(__start_branch_profile) = .;   \
119                                 *(_ftrace_branch)                             \
120                                 VMLINUX_SYMBOL(__stop_branch_profile) = .;
121 #else
122 #define BRANCH_PROFILE()
123 #endif
124
125 #ifdef CONFIG_EVENT_TRACING
126 #define FTRACE_EVENTS() VMLINUX_SYMBOL(__start_ftrace_events) = .;      \
127                         *(_ftrace_events)                               \
128                         VMLINUX_SYMBOL(__stop_ftrace_events) = .;
129 #else
130 #define FTRACE_EVENTS()
131 #endif
132
133 #ifdef CONFIG_TRACING
134 #define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .;      \
135                          *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \
136                          VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .;
137 #else
138 #define TRACE_PRINTKS()
139 #endif
140
141 #ifdef CONFIG_FTRACE_SYSCALLS
142 #define TRACE_SYSCALLS() VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \
143                          *(__syscalls_metadata)                         \
144                          VMLINUX_SYMBOL(__stop_syscalls_metadata) = .;
145 #else
146 #define TRACE_SYSCALLS()
147 #endif
148
149 /* .data section */
150 #define DATA_DATA                                                       \
151         *(.data)                                                        \
152         *(.ref.data)                                                    \
153         DEV_KEEP(init.data)                                             \
154         DEV_KEEP(exit.data)                                             \
155         CPU_KEEP(init.data)                                             \
156         CPU_KEEP(exit.data)                                             \
157         MEM_KEEP(init.data)                                             \
158         MEM_KEEP(exit.data)                                             \
159         . = ALIGN(32);                                                  \
160         VMLINUX_SYMBOL(__start___tracepoints) = .;                      \
161         *(__tracepoints)                                                \
162         VMLINUX_SYMBOL(__stop___tracepoints) = .;                       \
163         /* implement dynamic printk debug */                            \
164         . = ALIGN(8);                                                   \
165         VMLINUX_SYMBOL(__start___verbose) = .;                          \
166         *(__verbose)                                                    \
167         VMLINUX_SYMBOL(__stop___verbose) = .;                           \
168         LIKELY_PROFILE()                                                \
169         BRANCH_PROFILE()                                                \
170         TRACE_PRINTKS()                                                 \
171                                                                         \
172         STRUCT_ALIGN();                                                 \
173         FTRACE_EVENTS()                                                 \
174                                                                         \
175         STRUCT_ALIGN();                                                 \
176         TRACE_SYSCALLS()
177
178 /*
179  * Data section helpers
180  */
181 #define NOSAVE_DATA                                                     \
182         . = ALIGN(PAGE_SIZE);                                           \
183         VMLINUX_SYMBOL(__nosave_begin) = .;                             \
184         *(.data..nosave)                                                \
185         . = ALIGN(PAGE_SIZE);                                           \
186         VMLINUX_SYMBOL(__nosave_end) = .;
187
188 #define PAGE_ALIGNED_DATA(page_align)                                   \
189         . = ALIGN(page_align);                                          \
190         *(.data..page_aligned)
191
192 #define READ_MOSTLY_DATA(align)                                         \
193         . = ALIGN(align);                                               \
194         *(.data..read_mostly)
195
196 #define CACHELINE_ALIGNED_DATA(align)                                   \
197         . = ALIGN(align);                                               \
198         *(.data..cacheline_aligned)
199
200 #define INIT_TASK_DATA(align)                                           \
201         . = ALIGN(align);                                               \
202         *(.data..init_task)
203
204 /*
205  * Read only Data
206  */
207 #define RO_DATA_SECTION(align)                                          \
208         . = ALIGN((align));                                             \
209         .rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {           \
210                 VMLINUX_SYMBOL(__start_rodata) = .;                     \
211                 *(.rodata) *(.rodata.*)                                 \
212                 *(__vermagic)           /* Kernel version magic */      \
213                 *(__markers_strings)    /* Markers: strings */          \
214                 *(__tracepoints_strings)/* Tracepoints: strings */      \
215         }                                                               \
216                                                                         \
217         .rodata1          : AT(ADDR(.rodata1) - LOAD_OFFSET) {          \
218                 *(.rodata1)                                             \
219         }                                                               \
220                                                                         \
221         BUG_TABLE                                                       \
222                                                                         \
223         JUMP_TABLE                                                      \
224                                                                         \
225         /* PCI quirks */                                                \
226         .pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {        \
227                 VMLINUX_SYMBOL(__start_pci_fixups_early) = .;           \
228                 *(.pci_fixup_early)                                     \
229                 VMLINUX_SYMBOL(__end_pci_fixups_early) = .;             \
230                 VMLINUX_SYMBOL(__start_pci_fixups_header) = .;          \
231                 *(.pci_fixup_header)                                    \
232                 VMLINUX_SYMBOL(__end_pci_fixups_header) = .;            \
233                 VMLINUX_SYMBOL(__start_pci_fixups_final) = .;           \
234                 *(.pci_fixup_final)                                     \
235                 VMLINUX_SYMBOL(__end_pci_fixups_final) = .;             \
236                 VMLINUX_SYMBOL(__start_pci_fixups_enable) = .;          \
237                 *(.pci_fixup_enable)                                    \
238                 VMLINUX_SYMBOL(__end_pci_fixups_enable) = .;            \
239                 VMLINUX_SYMBOL(__start_pci_fixups_resume) = .;          \
240                 *(.pci_fixup_resume)                                    \
241                 VMLINUX_SYMBOL(__end_pci_fixups_resume) = .;            \
242                 VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .;    \
243                 *(.pci_fixup_resume_early)                              \
244                 VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .;      \
245                 VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .;         \
246                 *(.pci_fixup_suspend)                                   \
247                 VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .;           \
248         }                                                               \
249                                                                         \
250         /* Built-in firmware blobs */                                   \
251         .builtin_fw        : AT(ADDR(.builtin_fw) - LOAD_OFFSET) {      \
252                 VMLINUX_SYMBOL(__start_builtin_fw) = .;                 \
253                 *(.builtin_fw)                                          \
254                 VMLINUX_SYMBOL(__end_builtin_fw) = .;                   \
255         }                                                               \
256                                                                         \
257         /* RapidIO route ops */                                         \
258         .rio_ops        : AT(ADDR(.rio_ops) - LOAD_OFFSET) {            \
259                 VMLINUX_SYMBOL(__start_rio_switch_ops) = .;             \
260                 *(.rio_switch_ops)                                      \
261                 VMLINUX_SYMBOL(__end_rio_switch_ops) = .;               \
262         }                                                               \
263                                                                         \
264         TRACEDATA                                                       \
265                                                                         \
266         /* Kernel symbol table: Normal symbols */                       \
267         __ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {         \
268                 VMLINUX_SYMBOL(__start___ksymtab) = .;                  \
269                 *(__ksymtab)                                            \
270                 VMLINUX_SYMBOL(__stop___ksymtab) = .;                   \
271         }                                                               \
272                                                                         \
273         /* Kernel symbol table: GPL-only symbols */                     \
274         __ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {     \
275                 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .;              \
276                 *(__ksymtab_gpl)                                        \
277                 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;               \
278         }                                                               \
279                                                                         \
280         /* Kernel symbol table: Normal unused symbols */                \
281         __ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {  \
282                 VMLINUX_SYMBOL(__start___ksymtab_unused) = .;           \
283                 *(__ksymtab_unused)                                     \
284                 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .;            \
285         }                                                               \
286                                                                         \
287         /* Kernel symbol table: GPL-only unused symbols */              \
288         __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
289                 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .;       \
290                 *(__ksymtab_unused_gpl)                                 \
291                 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .;        \
292         }                                                               \
293                                                                         \
294         /* Kernel symbol table: GPL-future-only symbols */              \
295         __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
296                 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .;       \
297                 *(__ksymtab_gpl_future)                                 \
298                 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .;        \
299         }                                                               \
300                                                                         \
301         /* Kernel symbol table: Normal symbols */                       \
302         __kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {         \
303                 VMLINUX_SYMBOL(__start___kcrctab) = .;                  \
304                 *(__kcrctab)                                            \
305                 VMLINUX_SYMBOL(__stop___kcrctab) = .;                   \
306         }                                                               \
307                                                                         \
308         /* Kernel symbol table: GPL-only symbols */                     \
309         __kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {     \
310                 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .;              \
311                 *(__kcrctab_gpl)                                        \
312                 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .;               \
313         }                                                               \
314                                                                         \
315         /* Kernel symbol table: Normal unused symbols */                \
316         __kcrctab_unused  : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) {  \
317                 VMLINUX_SYMBOL(__start___kcrctab_unused) = .;           \
318                 *(__kcrctab_unused)                                     \
319                 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .;            \
320         }                                                               \
321                                                                         \
322         /* Kernel symbol table: GPL-only unused symbols */              \
323         __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
324                 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .;       \
325                 *(__kcrctab_unused_gpl)                                 \
326                 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .;        \
327         }                                                               \
328                                                                         \
329         /* Kernel symbol table: GPL-future-only symbols */              \
330         __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
331                 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .;       \
332                 *(__kcrctab_gpl_future)                                 \
333                 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .;        \
334         }                                                               \
335                                                                         \
336         /* Kernel symbol table: strings */                              \
337         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
338                 *(__ksymtab_strings)                                    \
339         }                                                               \
340                                                                         \
341         /* __*init sections */                                          \
342         __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) {         \
343                 *(.ref.rodata)                                          \
344                 DEV_KEEP(init.rodata)                                   \
345                 DEV_KEEP(exit.rodata)                                   \
346                 CPU_KEEP(init.rodata)                                   \
347                 CPU_KEEP(exit.rodata)                                   \
348                 MEM_KEEP(init.rodata)                                   \
349                 MEM_KEEP(exit.rodata)                                   \
350         }                                                               \
351                                                                         \
352         /* Built-in module parameters. */                               \
353         __param : AT(ADDR(__param) - LOAD_OFFSET) {                     \
354                 VMLINUX_SYMBOL(__start___param) = .;                    \
355                 *(__param)                                              \
356                 VMLINUX_SYMBOL(__stop___param) = .;                     \
357                 . = ALIGN((align));                                     \
358                 VMLINUX_SYMBOL(__end_rodata) = .;                       \
359         }                                                               \
360         . = ALIGN((align));
361
362 /* RODATA & RO_DATA provided for backward compatibility.
363  * All archs are supposed to use RO_DATA() */
364 #define RODATA          RO_DATA_SECTION(4096)
365 #define RO_DATA(align)  RO_DATA_SECTION(align)
366
367 #define SECURITY_INIT                                                   \
368         .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
369                 VMLINUX_SYMBOL(__security_initcall_start) = .;          \
370                 *(.security_initcall.init)                              \
371                 VMLINUX_SYMBOL(__security_initcall_end) = .;            \
372         }
373
374 /* .text section. Map to function alignment to avoid address changes
375  * during second ld run in second ld pass when generating System.map */
376 #define TEXT_TEXT                                                       \
377                 ALIGN_FUNCTION();                                       \
378                 *(.text.hot)                                            \
379                 *(.text)                                                \
380                 *(.ref.text)                                            \
381         DEV_KEEP(init.text)                                             \
382         DEV_KEEP(exit.text)                                             \
383         CPU_KEEP(init.text)                                             \
384         CPU_KEEP(exit.text)                                             \
385         MEM_KEEP(init.text)                                             \
386         MEM_KEEP(exit.text)                                             \
387                 *(.text.unlikely)
388
389
390 /* sched.text is aling to function alignment to secure we have same
391  * address even at second ld pass when generating System.map */
392 #define SCHED_TEXT                                                      \
393                 ALIGN_FUNCTION();                                       \
394                 VMLINUX_SYMBOL(__sched_text_start) = .;                 \
395                 *(.sched.text)                                          \
396                 VMLINUX_SYMBOL(__sched_text_end) = .;
397
398 /* spinlock.text is aling to function alignment to secure we have same
399  * address even at second ld pass when generating System.map */
400 #define LOCK_TEXT                                                       \
401                 ALIGN_FUNCTION();                                       \
402                 VMLINUX_SYMBOL(__lock_text_start) = .;                  \
403                 *(.spinlock.text)                                       \
404                 VMLINUX_SYMBOL(__lock_text_end) = .;
405
406 #define KPROBES_TEXT                                                    \
407                 ALIGN_FUNCTION();                                       \
408                 VMLINUX_SYMBOL(__kprobes_text_start) = .;               \
409                 *(.kprobes.text)                                        \
410                 VMLINUX_SYMBOL(__kprobes_text_end) = .;
411
412 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
413 #define IRQENTRY_TEXT                                                   \
414                 ALIGN_FUNCTION();                                       \
415                 VMLINUX_SYMBOL(__irqentry_text_start) = .;              \
416                 *(.irqentry.text)                                       \
417                 VMLINUX_SYMBOL(__irqentry_text_end) = .;
418 #else
419 #define IRQENTRY_TEXT
420 #endif
421
422 /* Section used for early init (in .S files) */
423 #define HEAD_TEXT  *(.head.text)
424
425 #define HEAD_TEXT_SECTION                                                       \
426         .head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {               \
427                 HEAD_TEXT                                               \
428         }
429
430 /*
431  * Exception table
432  */
433 #define EXCEPTION_TABLE(align)                                          \
434         . = ALIGN(align);                                               \
435         __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {               \
436                 VMLINUX_SYMBOL(__start___ex_table) = .;                 \
437                 *(__ex_table)                                           \
438                 VMLINUX_SYMBOL(__stop___ex_table) = .;                  \
439         }
440
441 /*
442  * Init task
443  */
444 #define INIT_TASK_DATA_SECTION(align)                                   \
445         . = ALIGN(align);                                               \
446         .data..init_task :  AT(ADDR(.data..init_task) - LOAD_OFFSET) {  \
447                 INIT_TASK_DATA(align)                                   \
448         }
449
450 #ifdef CONFIG_CONSTRUCTORS
451 #define KERNEL_CTORS()  . = ALIGN(8);                      \
452                         VMLINUX_SYMBOL(__ctors_start) = .; \
453                         *(.ctors)                          \
454                         VMLINUX_SYMBOL(__ctors_end) = .;
455 #else
456 #define KERNEL_CTORS()
457 #endif
458
459 /* init and exit section handling */
460 #define INIT_DATA                                                       \
461         *(.init.data)                                                   \
462         DEV_DISCARD(init.data)                                          \
463         CPU_DISCARD(init.data)                                          \
464         MEM_DISCARD(init.data)                                          \
465         KERNEL_CTORS()                                                  \
466         *(.init.rodata)                                                 \
467         MCOUNT_REC()                                                    \
468         DEV_DISCARD(init.rodata)                                        \
469         CPU_DISCARD(init.rodata)                                        \
470         MEM_DISCARD(init.rodata)
471
472 #define INIT_TEXT                                                       \
473         *(.init.text)                                                   \
474         DEV_DISCARD(init.text)                                          \
475         CPU_DISCARD(init.text)                                          \
476         MEM_DISCARD(init.text)
477
478 #define EXIT_DATA                                                       \
479         *(.exit.data)                                                   \
480         DEV_DISCARD(exit.data)                                          \
481         DEV_DISCARD(exit.rodata)                                        \
482         CPU_DISCARD(exit.data)                                          \
483         CPU_DISCARD(exit.rodata)                                        \
484         MEM_DISCARD(exit.data)                                          \
485         MEM_DISCARD(exit.rodata)
486
487 #define EXIT_TEXT                                                       \
488         *(.exit.text)                                                   \
489         DEV_DISCARD(exit.text)                                          \
490         CPU_DISCARD(exit.text)                                          \
491         MEM_DISCARD(exit.text)
492
493 #define EXIT_CALL                                                       \
494         *(.exitcall.exit)
495
496 /*
497  * bss (Block Started by Symbol) - uninitialized data
498  * zeroed during startup
499  */
500 #define SBSS(sbss_align)                                                \
501         . = ALIGN(sbss_align);                                          \
502         .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {                         \
503                 *(.sbss)                                                \
504                 *(.scommon)                                             \
505         }
506
507 #define BSS(bss_align)                                                  \
508         . = ALIGN(bss_align);                                           \
509         .bss : AT(ADDR(.bss) - LOAD_OFFSET) {                           \
510                 *(.bss..page_aligned)                                   \
511                 *(.dynbss)                                              \
512                 *(.bss)                                                 \
513                 *(COMMON)                                               \
514         }
515
516 /*
517  * DWARF debug sections.
518  * Symbols in the DWARF debugging sections are relative to
519  * the beginning of the section so we begin them at 0.
520  */
521 #define DWARF_DEBUG                                                     \
522                 /* DWARF 1 */                                           \
523                 .debug          0 : { *(.debug) }                       \
524                 .line           0 : { *(.line) }                        \
525                 /* GNU DWARF 1 extensions */                            \
526                 .debug_srcinfo  0 : { *(.debug_srcinfo) }               \
527                 .debug_sfnames  0 : { *(.debug_sfnames) }               \
528                 /* DWARF 1.1 and DWARF 2 */                             \
529                 .debug_aranges  0 : { *(.debug_aranges) }               \
530                 .debug_pubnames 0 : { *(.debug_pubnames) }              \
531                 /* DWARF 2 */                                           \
532                 .debug_info     0 : { *(.debug_info                     \
533                                 .gnu.linkonce.wi.*) }                   \
534                 .debug_abbrev   0 : { *(.debug_abbrev) }                \
535                 .debug_line     0 : { *(.debug_line) }                  \
536                 .debug_frame    0 : { *(.debug_frame) }                 \
537                 .debug_str      0 : { *(.debug_str) }                   \
538                 .debug_loc      0 : { *(.debug_loc) }                   \
539                 .debug_macinfo  0 : { *(.debug_macinfo) }               \
540                 /* SGI/MIPS DWARF 2 extensions */                       \
541                 .debug_weaknames 0 : { *(.debug_weaknames) }            \
542                 .debug_funcnames 0 : { *(.debug_funcnames) }            \
543                 .debug_typenames 0 : { *(.debug_typenames) }            \
544                 .debug_varnames  0 : { *(.debug_varnames) }             \
545
546                 /* Stabs debugging sections.  */
547 #define STABS_DEBUG                                                     \
548                 .stab 0 : { *(.stab) }                                  \
549                 .stabstr 0 : { *(.stabstr) }                            \
550                 .stab.excl 0 : { *(.stab.excl) }                        \
551                 .stab.exclstr 0 : { *(.stab.exclstr) }                  \
552                 .stab.index 0 : { *(.stab.index) }                      \
553                 .stab.indexstr 0 : { *(.stab.indexstr) }                \
554                 .comment 0 : { *(.comment) }
555
556 #ifdef CONFIG_GENERIC_BUG
557 #define BUG_TABLE                                                       \
558         . = ALIGN(8);                                                   \
559         __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) {             \
560                 VMLINUX_SYMBOL(__start___bug_table) = .;                \
561                 *(__bug_table)                                          \
562                 VMLINUX_SYMBOL(__stop___bug_table) = .;                 \
563         }
564 #else
565 #define BUG_TABLE
566 #endif
567
568 #define JUMP_TABLE                                                      \
569         . = ALIGN(8);                                                   \
570         __jump_table : AT(ADDR(__jump_table) - LOAD_OFFSET) {           \
571                 VMLINUX_SYMBOL(__start___jump_table) = .;               \
572                 *(__jump_table)                                         \
573                 VMLINUX_SYMBOL(__stop___jump_table) = .;                \
574         }
575
576 #ifdef CONFIG_PM_TRACE
577 #define TRACEDATA                                                       \
578         . = ALIGN(4);                                                   \
579         .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {               \
580                 VMLINUX_SYMBOL(__tracedata_start) = .;                  \
581                 *(.tracedata)                                           \
582                 VMLINUX_SYMBOL(__tracedata_end) = .;                    \
583         }
584 #else
585 #define TRACEDATA
586 #endif
587
588 #define NOTES                                                           \
589         .notes : AT(ADDR(.notes) - LOAD_OFFSET) {                       \
590                 VMLINUX_SYMBOL(__start_notes) = .;                      \
591                 *(.note.*)                                              \
592                 VMLINUX_SYMBOL(__stop_notes) = .;                       \
593         }
594
595 #define INIT_SETUP(initsetup_align)                                     \
596                 . = ALIGN(initsetup_align);                             \
597                 VMLINUX_SYMBOL(__setup_start) = .;                      \
598                 *(.init.setup)                                          \
599                 VMLINUX_SYMBOL(__setup_end) = .;
600
601 #define INITCALLS                                                       \
602         *(.initcallearly.init)                                          \
603         VMLINUX_SYMBOL(__early_initcall_end) = .;                       \
604         *(.initcall0.init)                                              \
605         *(.initcall0s.init)                                             \
606         *(.initcall1.init)                                              \
607         *(.initcall1s.init)                                             \
608         *(.initcall2.init)                                              \
609         *(.initcall2s.init)                                             \
610         *(.initcall3.init)                                              \
611         *(.initcall3s.init)                                             \
612         *(.initcall4.init)                                              \
613         *(.initcall4s.init)                                             \
614         *(.initcall5.init)                                              \
615         *(.initcall5s.init)                                             \
616         *(.initcallrootfs.init)                                         \
617         *(.initcall6.init)                                              \
618         *(.initcall6s.init)                                             \
619         *(.initcall7.init)                                              \
620         *(.initcall7s.init)
621
622 #define INIT_CALLS                                                      \
623                 VMLINUX_SYMBOL(__initcall_start) = .;                   \
624                 INITCALLS                                               \
625                 VMLINUX_SYMBOL(__initcall_end) = .;
626
627 #define CON_INITCALL                                                    \
628                 VMLINUX_SYMBOL(__con_initcall_start) = .;               \
629                 *(.con_initcall.init)                                   \
630                 VMLINUX_SYMBOL(__con_initcall_end) = .;
631
632 #define SECURITY_INITCALL                                               \
633                 VMLINUX_SYMBOL(__security_initcall_start) = .;          \
634                 *(.security_initcall.init)                              \
635                 VMLINUX_SYMBOL(__security_initcall_end) = .;
636
637 #ifdef CONFIG_BLK_DEV_INITRD
638 #define INIT_RAM_FS                                                     \
639         . = ALIGN(PAGE_SIZE);                                           \
640         VMLINUX_SYMBOL(__initramfs_start) = .;                          \
641         *(.init.ramfs)                                                  \
642         VMLINUX_SYMBOL(__initramfs_end) = .;
643 #else
644 #define INIT_RAM_FS
645 #endif
646
647 /*
648  * Default discarded sections.
649  *
650  * Some archs want to discard exit text/data at runtime rather than
651  * link time due to cross-section references such as alt instructions,
652  * bug table, eh_frame, etc.  DISCARDS must be the last of output
653  * section definitions so that such archs put those in earlier section
654  * definitions.
655  */
656 #define DISCARDS                                                        \
657         /DISCARD/ : {                                                   \
658         EXIT_TEXT                                                       \
659         EXIT_DATA                                                       \
660         EXIT_CALL                                                       \
661         *(.discard)                                                     \
662         *(.discard.*)                                                   \
663         }
664
665 /**
666  * PERCPU_VADDR - define output section for percpu area
667  * @vaddr: explicit base address (optional)
668  * @phdr: destination PHDR (optional)
669  *
670  * Macro which expands to output section for percpu area.  If @vaddr
671  * is not blank, it specifies explicit base address and all percpu
672  * symbols will be offset from the given address.  If blank, @vaddr
673  * always equals @laddr + LOAD_OFFSET.
674  *
675  * @phdr defines the output PHDR to use if not blank.  Be warned that
676  * output PHDR is sticky.  If @phdr is specified, the next output
677  * section in the linker script will go there too.  @phdr should have
678  * a leading colon.
679  *
680  * Note that this macros defines __per_cpu_load as an absolute symbol.
681  * If there is no need to put the percpu section at a predetermined
682  * address, use PERCPU().
683  */
684 #define PERCPU_VADDR(vaddr, phdr)                                       \
685         VMLINUX_SYMBOL(__per_cpu_load) = .;                             \
686         .data..percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load)         \
687                                 - LOAD_OFFSET) {                        \
688                 VMLINUX_SYMBOL(__per_cpu_start) = .;                    \
689                 *(.data..percpu..first)                                 \
690                 . = ALIGN(PAGE_SIZE);                                   \
691                 *(.data..percpu..page_aligned)                          \
692                 *(.data..percpu..readmostly)                            \
693                 *(.data..percpu)                                        \
694                 *(.data..percpu..shared_aligned)                        \
695                 VMLINUX_SYMBOL(__per_cpu_end) = .;                      \
696         } phdr                                                          \
697         . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data..percpu);
698
699 /**
700  * PERCPU - define output section for percpu area, simple version
701  * @align: required alignment
702  *
703  * Align to @align and outputs output section for percpu area.  This
704  * macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and
705  * __per_cpu_start will be identical.
706  *
707  * This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except
708  * that __per_cpu_load is defined as a relative symbol against
709  * .data..percpu which is required for relocatable x86_32
710  * configuration.
711  */
712 #define PERCPU(align)                                                   \
713         . = ALIGN(align);                                               \
714         .data..percpu   : AT(ADDR(.data..percpu) - LOAD_OFFSET) {       \
715                 VMLINUX_SYMBOL(__per_cpu_load) = .;                     \
716                 VMLINUX_SYMBOL(__per_cpu_start) = .;                    \
717                 *(.data..percpu..first)                                 \
718                 . = ALIGN(PAGE_SIZE);                                   \
719                 *(.data..percpu..page_aligned)                          \
720                 *(.data..percpu..readmostly)                            \
721                 *(.data..percpu)                                        \
722                 *(.data..percpu..shared_aligned)                        \
723                 VMLINUX_SYMBOL(__per_cpu_end) = .;                      \
724         }
725
726
727 /*
728  * Definition of the high level *_SECTION macros
729  * They will fit only a subset of the architectures
730  */
731
732
733 /*
734  * Writeable data.
735  * All sections are combined in a single .data section.
736  * The sections following CONSTRUCTORS are arranged so their
737  * typical alignment matches.
738  * A cacheline is typical/always less than a PAGE_SIZE so
739  * the sections that has this restriction (or similar)
740  * is located before the ones requiring PAGE_SIZE alignment.
741  * NOSAVE_DATA starts and ends with a PAGE_SIZE alignment which
742  * matches the requirment of PAGE_ALIGNED_DATA.
743  *
744  * use 0 as page_align if page_aligned data is not used */
745 #define RW_DATA_SECTION(cacheline, pagealigned, inittask)               \
746         . = ALIGN(PAGE_SIZE);                                           \
747         .data : AT(ADDR(.data) - LOAD_OFFSET) {                         \
748                 INIT_TASK_DATA(inittask)                                \
749                 NOSAVE_DATA                                             \
750                 PAGE_ALIGNED_DATA(pagealigned)                          \
751                 CACHELINE_ALIGNED_DATA(cacheline)                       \
752                 READ_MOSTLY_DATA(cacheline)                             \
753                 DATA_DATA                                               \
754                 CONSTRUCTORS                                            \
755         }
756
757 #define INIT_TEXT_SECTION(inittext_align)                               \
758         . = ALIGN(inittext_align);                                      \
759         .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {               \
760                 VMLINUX_SYMBOL(_sinittext) = .;                         \
761                 INIT_TEXT                                               \
762                 VMLINUX_SYMBOL(_einittext) = .;                         \
763         }
764
765 #define INIT_DATA_SECTION(initsetup_align)                              \
766         .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {               \
767                 INIT_DATA                                               \
768                 INIT_SETUP(initsetup_align)                             \
769                 INIT_CALLS                                              \
770                 CON_INITCALL                                            \
771                 SECURITY_INITCALL                                       \
772                 INIT_RAM_FS                                             \
773         }
774
775 #define BSS_SECTION(sbss_align, bss_align, stop_align)                  \
776         . = ALIGN(sbss_align);                                          \
777         VMLINUX_SYMBOL(__bss_start) = .;                                \
778         SBSS(sbss_align)                                                \
779         BSS(bss_align)                                                  \
780         . = ALIGN(stop_align);                                          \
781         VMLINUX_SYMBOL(__bss_stop) = .;