blob: b20409404c7dac724761f2e4df39d228f25b9026 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef LOAD_OFFSET
2#define LOAD_OFFSET 0
3#endif
4
5#ifndef VMLINUX_SYMBOL
6#define VMLINUX_SYMBOL(_sym_) _sym_
7#endif
8
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +00009/* Align . to a 8 byte boundary equals to maximum function alignment. */
10#define ALIGN_FUNCTION() . = ALIGN(8)
11
Sam Ravnborgeb8f6892008-01-20 20:07:28 +010012/* The actual configuration determine if the init/exit sections
13 * are handled as text/data or they can be discarded (which
14 * often happens at runtime)
15 */
16#ifdef CONFIG_HOTPLUG
17#define DEV_KEEP(sec) *(.dev##sec)
18#define DEV_DISCARD(sec)
19#else
20#define DEV_KEEP(sec)
21#define DEV_DISCARD(sec) *(.dev##sec)
22#endif
23
24#ifdef CONFIG_HOTPLUG_CPU
25#define CPU_KEEP(sec) *(.cpu##sec)
26#define CPU_DISCARD(sec)
27#else
28#define CPU_KEEP(sec)
29#define CPU_DISCARD(sec) *(.cpu##sec)
30#endif
31
Adrian Bunk1a3fb6d2008-01-24 22:20:18 +010032#if defined(CONFIG_MEMORY_HOTPLUG)
Sam Ravnborgeb8f6892008-01-20 20:07:28 +010033#define MEM_KEEP(sec) *(.mem##sec)
34#define MEM_DISCARD(sec)
35#else
36#define MEM_KEEP(sec)
37#define MEM_DISCARD(sec) *(.mem##sec)
38#endif
39
40
Sam Ravnborgca967252007-05-17 13:38:44 +020041/* .data section */
42#define DATA_DATA \
Sam Ravnborg0e0d3142007-05-17 20:14:48 +020043 *(.data) \
Mathieu Desnoyers8256e472007-10-18 23:41:06 -070044 *(.data.init.refok) \
Sam Ravnborg312b1482008-01-28 20:21:15 +010045 *(.ref.data) \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +010046 DEV_KEEP(init.data) \
47 DEV_KEEP(exit.data) \
48 CPU_KEEP(init.data) \
49 CPU_KEEP(exit.data) \
50 MEM_KEEP(init.data) \
51 MEM_KEEP(exit.data) \
Mathieu Desnoyers8256e472007-10-18 23:41:06 -070052 . = ALIGN(8); \
53 VMLINUX_SYMBOL(__start___markers) = .; \
54 *(__markers) \
55 VMLINUX_SYMBOL(__stop___markers) = .;
Sam Ravnborgca967252007-05-17 13:38:44 +020056
Sam Ravnborg4096b462007-05-29 21:29:00 +020057#define RO_DATA(align) \
58 . = ALIGN((align)); \
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \
Vivek Goyal65695802006-12-07 02:14:03 +010060 VMLINUX_SYMBOL(__start_rodata) = .; \
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 *(.rodata) *(.rodata.*) \
62 *(__vermagic) /* Kernel version magic */ \
Mathieu Desnoyers8256e472007-10-18 23:41:06 -070063 *(__markers_strings) /* Markers: strings */ \
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 } \
65 \
66 .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \
67 *(.rodata1) \
68 } \
69 \
Jan Beulich6360b1f2008-05-12 15:44:41 +020070 BUG_TABLE \
71 \
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 /* PCI quirks */ \
73 .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
74 VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
75 *(.pci_fixup_early) \
76 VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
77 VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
78 *(.pci_fixup_header) \
79 VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
80 VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
81 *(.pci_fixup_final) \
82 VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
83 VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
84 *(.pci_fixup_enable) \
85 VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
Alan Cox1597cac2006-12-04 15:14:45 -080086 VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
87 *(.pci_fixup_resume) \
88 VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 } \
90 \
David Woodhouse5658c762008-05-23 13:52:42 +010091 /* Built-in firmware blobs */ \
92 .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \
93 VMLINUX_SYMBOL(__start_builtin_fw) = .; \
94 *(.builtin_fw) \
95 VMLINUX_SYMBOL(__end_builtin_fw) = .; \
96 } \
97 \
Matt Porter394b7012005-11-07 01:00:15 -080098 /* RapidIO route ops */ \
99 .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \
100 VMLINUX_SYMBOL(__start_rio_route_ops) = .; \
101 *(.rio_route_ops) \
102 VMLINUX_SYMBOL(__end_rio_route_ops) = .; \
103 } \
104 \
Jan Beulich63687a52008-05-12 15:44:41 +0200105 TRACEDATA \
106 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 /* Kernel symbol table: Normal symbols */ \
108 __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
109 VMLINUX_SYMBOL(__start___ksymtab) = .; \
110 *(__ksymtab) \
111 VMLINUX_SYMBOL(__stop___ksymtab) = .; \
112 } \
113 \
114 /* Kernel symbol table: GPL-only symbols */ \
115 __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
116 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
117 *(__ksymtab_gpl) \
118 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
119 } \
120 \
Arjan van de Venf71d20e2006-06-28 04:26:45 -0700121 /* Kernel symbol table: Normal unused symbols */ \
122 __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
123 VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
124 *(__ksymtab_unused) \
125 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
126 } \
127 \
128 /* Kernel symbol table: GPL-only unused symbols */ \
129 __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
130 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
131 *(__ksymtab_unused_gpl) \
132 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
133 } \
134 \
Greg Kroah-Hartman9f28bb72006-03-20 13:17:13 -0800135 /* Kernel symbol table: GPL-future-only symbols */ \
136 __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
137 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
138 *(__ksymtab_gpl_future) \
139 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
140 } \
141 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 /* Kernel symbol table: Normal symbols */ \
143 __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
144 VMLINUX_SYMBOL(__start___kcrctab) = .; \
145 *(__kcrctab) \
146 VMLINUX_SYMBOL(__stop___kcrctab) = .; \
147 } \
148 \
149 /* Kernel symbol table: GPL-only symbols */ \
150 __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
151 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
152 *(__kcrctab_gpl) \
153 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
154 } \
155 \
Arjan van de Venf71d20e2006-06-28 04:26:45 -0700156 /* Kernel symbol table: Normal unused symbols */ \
157 __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
158 VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
159 *(__kcrctab_unused) \
160 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
161 } \
162 \
163 /* Kernel symbol table: GPL-only unused symbols */ \
164 __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
165 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
166 *(__kcrctab_unused_gpl) \
167 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
168 } \
169 \
Greg Kroah-Hartman9f28bb72006-03-20 13:17:13 -0800170 /* Kernel symbol table: GPL-future-only symbols */ \
171 __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
172 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
173 *(__kcrctab_gpl_future) \
174 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
175 } \
176 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 /* Kernel symbol table: strings */ \
178 __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
179 *(__ksymtab_strings) \
180 } \
181 \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100182 /* __*init sections */ \
183 __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \
Sam Ravnborg312b1482008-01-28 20:21:15 +0100184 *(.ref.rodata) \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100185 DEV_KEEP(init.rodata) \
186 DEV_KEEP(exit.rodata) \
187 CPU_KEEP(init.rodata) \
188 CPU_KEEP(exit.rodata) \
189 MEM_KEEP(init.rodata) \
190 MEM_KEEP(exit.rodata) \
191 } \
192 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 /* Built-in module parameters. */ \
194 __param : AT(ADDR(__param) - LOAD_OFFSET) { \
195 VMLINUX_SYMBOL(__start___param) = .; \
196 *(__param) \
197 VMLINUX_SYMBOL(__stop___param) = .; \
Arjan van de Venedeed302008-01-30 13:34:08 +0100198 . = ALIGN((align)); \
Vivek Goyal65695802006-12-07 02:14:03 +0100199 VMLINUX_SYMBOL(__end_rodata) = .; \
Marcelo Tosatti7583ddf2006-09-27 01:51:02 -0700200 } \
Sam Ravnborg4096b462007-05-29 21:29:00 +0200201 . = ALIGN((align));
202
203/* RODATA provided for backward compatibility.
204 * All archs are supposed to use RO_DATA() */
205#define RODATA RO_DATA(4096)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
207#define SECURITY_INIT \
Eric W. Biederman60bad7f2005-06-25 14:57:46 -0700208 .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 VMLINUX_SYMBOL(__security_initcall_start) = .; \
210 *(.security_initcall.init) \
211 VMLINUX_SYMBOL(__security_initcall_end) = .; \
212 }
213
Sam Ravnborg76647092007-05-13 00:31:33 +0200214/* .text section. Map to function alignment to avoid address changes
215 * during second ld run in second ld pass when generating System.map */
216#define TEXT_TEXT \
217 ALIGN_FUNCTION(); \
Sam Ravnborg0e0d3142007-05-17 20:14:48 +0200218 *(.text) \
Sam Ravnborg312b1482008-01-28 20:21:15 +0100219 *(.ref.text) \
Al Viro23ec23c2007-10-13 08:40:24 +0100220 *(.text.init.refok) \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100221 *(.exit.text.refok) \
222 DEV_KEEP(init.text) \
223 DEV_KEEP(exit.text) \
224 CPU_KEEP(init.text) \
225 CPU_KEEP(exit.text) \
226 MEM_KEEP(init.text) \
227 MEM_KEEP(exit.text)
228
Sam Ravnborg76647092007-05-13 00:31:33 +0200229
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000230/* sched.text is aling to function alignment to secure we have same
231 * address even at second ld pass when generating System.map */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232#define SCHED_TEXT \
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000233 ALIGN_FUNCTION(); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 VMLINUX_SYMBOL(__sched_text_start) = .; \
235 *(.sched.text) \
236 VMLINUX_SYMBOL(__sched_text_end) = .;
237
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000238/* spinlock.text is aling to function alignment to secure we have same
239 * address even at second ld pass when generating System.map */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240#define LOCK_TEXT \
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000241 ALIGN_FUNCTION(); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 VMLINUX_SYMBOL(__lock_text_start) = .; \
243 *(.spinlock.text) \
244 VMLINUX_SYMBOL(__lock_text_end) = .;
Prasanna S Panchamukhid0aaff92005-09-06 15:19:26 -0700245
246#define KPROBES_TEXT \
247 ALIGN_FUNCTION(); \
248 VMLINUX_SYMBOL(__kprobes_text_start) = .; \
249 *(.kprobes.text) \
250 VMLINUX_SYMBOL(__kprobes_text_end) = .;
Paolo 'Blaisorblade' Giarrussoa7d0c212005-09-10 19:44:54 +0200251
Sam Ravnborg37c514e2008-02-19 21:00:18 +0100252/* Section used for early init (in .S files) */
253#define HEAD_TEXT *(.head.text)
254
Sam Ravnborg01ba2bd2008-01-20 14:15:03 +0100255/* init and exit section handling */
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100256#define INIT_DATA \
257 *(.init.data) \
258 DEV_DISCARD(init.data) \
259 DEV_DISCARD(init.rodata) \
260 CPU_DISCARD(init.data) \
261 CPU_DISCARD(init.rodata) \
262 MEM_DISCARD(init.data) \
263 MEM_DISCARD(init.rodata)
Sam Ravnborg01ba2bd2008-01-20 14:15:03 +0100264
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100265#define INIT_TEXT \
266 *(.init.text) \
267 DEV_DISCARD(init.text) \
268 CPU_DISCARD(init.text) \
269 MEM_DISCARD(init.text)
270
271#define EXIT_DATA \
272 *(.exit.data) \
273 DEV_DISCARD(exit.data) \
274 DEV_DISCARD(exit.rodata) \
275 CPU_DISCARD(exit.data) \
276 CPU_DISCARD(exit.rodata) \
277 MEM_DISCARD(exit.data) \
278 MEM_DISCARD(exit.rodata)
279
280#define EXIT_TEXT \
281 *(.exit.text) \
282 DEV_DISCARD(exit.text) \
283 CPU_DISCARD(exit.text) \
284 MEM_DISCARD(exit.text)
Sam Ravnborg01ba2bd2008-01-20 14:15:03 +0100285
Paolo 'Blaisorblade' Giarrussoa7d0c212005-09-10 19:44:54 +0200286 /* DWARF debug sections.
287 Symbols in the DWARF debugging sections are relative to
288 the beginning of the section so we begin them at 0. */
289#define DWARF_DEBUG \
290 /* DWARF 1 */ \
291 .debug 0 : { *(.debug) } \
292 .line 0 : { *(.line) } \
293 /* GNU DWARF 1 extensions */ \
294 .debug_srcinfo 0 : { *(.debug_srcinfo) } \
295 .debug_sfnames 0 : { *(.debug_sfnames) } \
296 /* DWARF 1.1 and DWARF 2 */ \
297 .debug_aranges 0 : { *(.debug_aranges) } \
298 .debug_pubnames 0 : { *(.debug_pubnames) } \
299 /* DWARF 2 */ \
300 .debug_info 0 : { *(.debug_info \
301 .gnu.linkonce.wi.*) } \
302 .debug_abbrev 0 : { *(.debug_abbrev) } \
303 .debug_line 0 : { *(.debug_line) } \
304 .debug_frame 0 : { *(.debug_frame) } \
305 .debug_str 0 : { *(.debug_str) } \
306 .debug_loc 0 : { *(.debug_loc) } \
307 .debug_macinfo 0 : { *(.debug_macinfo) } \
308 /* SGI/MIPS DWARF 2 extensions */ \
309 .debug_weaknames 0 : { *(.debug_weaknames) } \
310 .debug_funcnames 0 : { *(.debug_funcnames) } \
311 .debug_typenames 0 : { *(.debug_typenames) } \
312 .debug_varnames 0 : { *(.debug_varnames) } \
313
314 /* Stabs debugging sections. */
315#define STABS_DEBUG \
316 .stab 0 : { *(.stab) } \
317 .stabstr 0 : { *(.stabstr) } \
318 .stab.excl 0 : { *(.stab.excl) } \
319 .stab.exclstr 0 : { *(.stab.exclstr) } \
320 .stab.index 0 : { *(.stab.index) } \
321 .stab.indexstr 0 : { *(.stab.indexstr) } \
322 .comment 0 : { *(.comment) }
Jeremy Fitzhardinge9c9b8b32006-09-25 23:32:26 -0700323
Jan Beulich6360b1f2008-05-12 15:44:41 +0200324#ifdef CONFIG_GENERIC_BUG
Jeremy Fitzhardinge7664c5a2006-12-08 02:36:19 -0800325#define BUG_TABLE \
326 . = ALIGN(8); \
327 __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
328 __start___bug_table = .; \
329 *(__bug_table) \
330 __stop___bug_table = .; \
331 }
Jan Beulich6360b1f2008-05-12 15:44:41 +0200332#else
333#define BUG_TABLE
334#endif
Jeremy Fitzhardinge7664c5a2006-12-08 02:36:19 -0800335
Jan Beulich63687a52008-05-12 15:44:41 +0200336#ifdef CONFIG_PM_TRACE
337#define TRACEDATA \
338 . = ALIGN(4); \
339 .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \
340 __tracedata_start = .; \
341 *(.tracedata) \
342 __tracedata_end = .; \
343 }
344#else
345#define TRACEDATA
346#endif
347
Jeremy Fitzhardinge9c9b8b32006-09-25 23:32:26 -0700348#define NOTES \
Roland McGrathcbe87122007-07-19 01:48:36 -0700349 .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
350 VMLINUX_SYMBOL(__start_notes) = .; \
351 *(.note.*) \
352 VMLINUX_SYMBOL(__stop_notes) = .; \
353 }
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700354
355#define INITCALLS \
Linus Torvaldsb3438f82006-11-20 11:47:18 -0800356 *(.initcall0.init) \
357 *(.initcall0s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700358 *(.initcall1.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700359 *(.initcall1s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700360 *(.initcall2.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700361 *(.initcall2s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700362 *(.initcall3.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700363 *(.initcall3s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700364 *(.initcall4.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700365 *(.initcall4s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700366 *(.initcall5.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700367 *(.initcall5s.init) \
Linus Torvalds8d610dd2006-12-11 12:12:04 -0800368 *(.initcallrootfs.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700369 *(.initcall6.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700370 *(.initcall6s.init) \
371 *(.initcall7.init) \
372 *(.initcall7s.init)
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700373
Fenghua Yu5fb7dc32007-07-19 01:48:12 -0700374#define PERCPU(align) \
375 . = ALIGN(align); \
376 __per_cpu_start = .; \
377 .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \
378 *(.data.percpu) \
379 *(.data.percpu.shared_aligned) \
380 } \
381 __per_cpu_end = .;