blob: dd2cc8122ad85a55110f4743c3aeff1421a5ea5e [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 \
Matt Porter394b7012005-11-07 01:00:15 -080091 /* RapidIO route ops */ \
92 .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \
93 VMLINUX_SYMBOL(__start_rio_route_ops) = .; \
94 *(.rio_route_ops) \
95 VMLINUX_SYMBOL(__end_rio_route_ops) = .; \
96 } \
97 \
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 /* Kernel symbol table: Normal symbols */ \
99 __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
100 VMLINUX_SYMBOL(__start___ksymtab) = .; \
101 *(__ksymtab) \
102 VMLINUX_SYMBOL(__stop___ksymtab) = .; \
103 } \
104 \
105 /* Kernel symbol table: GPL-only symbols */ \
106 __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
107 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
108 *(__ksymtab_gpl) \
109 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
110 } \
111 \
Arjan van de Venf71d20e2006-06-28 04:26:45 -0700112 /* Kernel symbol table: Normal unused symbols */ \
113 __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
114 VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
115 *(__ksymtab_unused) \
116 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
117 } \
118 \
119 /* Kernel symbol table: GPL-only unused symbols */ \
120 __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
121 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
122 *(__ksymtab_unused_gpl) \
123 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
124 } \
125 \
Greg Kroah-Hartman9f28bb72006-03-20 13:17:13 -0800126 /* Kernel symbol table: GPL-future-only symbols */ \
127 __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
128 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
129 *(__ksymtab_gpl_future) \
130 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
131 } \
132 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 /* Kernel symbol table: Normal symbols */ \
134 __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \
135 VMLINUX_SYMBOL(__start___kcrctab) = .; \
136 *(__kcrctab) \
137 VMLINUX_SYMBOL(__stop___kcrctab) = .; \
138 } \
139 \
140 /* Kernel symbol table: GPL-only symbols */ \
141 __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \
142 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \
143 *(__kcrctab_gpl) \
144 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \
145 } \
146 \
Arjan van de Venf71d20e2006-06-28 04:26:45 -0700147 /* Kernel symbol table: Normal unused symbols */ \
148 __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \
149 VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \
150 *(__kcrctab_unused) \
151 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \
152 } \
153 \
154 /* Kernel symbol table: GPL-only unused symbols */ \
155 __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
156 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \
157 *(__kcrctab_unused_gpl) \
158 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \
159 } \
160 \
Greg Kroah-Hartman9f28bb72006-03-20 13:17:13 -0800161 /* Kernel symbol table: GPL-future-only symbols */ \
162 __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
163 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \
164 *(__kcrctab_gpl_future) \
165 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \
166 } \
167 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 /* Kernel symbol table: strings */ \
169 __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
170 *(__ksymtab_strings) \
171 } \
172 \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100173 /* __*init sections */ \
174 __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \
Sam Ravnborg312b1482008-01-28 20:21:15 +0100175 *(.ref.rodata) \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100176 DEV_KEEP(init.rodata) \
177 DEV_KEEP(exit.rodata) \
178 CPU_KEEP(init.rodata) \
179 CPU_KEEP(exit.rodata) \
180 MEM_KEEP(init.rodata) \
181 MEM_KEEP(exit.rodata) \
182 } \
183 \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 /* Built-in module parameters. */ \
185 __param : AT(ADDR(__param) - LOAD_OFFSET) { \
186 VMLINUX_SYMBOL(__start___param) = .; \
187 *(__param) \
188 VMLINUX_SYMBOL(__stop___param) = .; \
Arjan van de Venedeed302008-01-30 13:34:08 +0100189 . = ALIGN((align)); \
Vivek Goyal65695802006-12-07 02:14:03 +0100190 VMLINUX_SYMBOL(__end_rodata) = .; \
Marcelo Tosatti7583ddf2006-09-27 01:51:02 -0700191 } \
Sam Ravnborg4096b462007-05-29 21:29:00 +0200192 . = ALIGN((align));
193
194/* RODATA provided for backward compatibility.
195 * All archs are supposed to use RO_DATA() */
196#define RODATA RO_DATA(4096)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
198#define SECURITY_INIT \
Eric W. Biederman60bad7f2005-06-25 14:57:46 -0700199 .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 VMLINUX_SYMBOL(__security_initcall_start) = .; \
201 *(.security_initcall.init) \
202 VMLINUX_SYMBOL(__security_initcall_end) = .; \
203 }
204
Sam Ravnborg76647092007-05-13 00:31:33 +0200205/* .text section. Map to function alignment to avoid address changes
206 * during second ld run in second ld pass when generating System.map */
207#define TEXT_TEXT \
208 ALIGN_FUNCTION(); \
Sam Ravnborg0e0d3142007-05-17 20:14:48 +0200209 *(.text) \
Sam Ravnborg312b1482008-01-28 20:21:15 +0100210 *(.ref.text) \
Al Viro23ec23c2007-10-13 08:40:24 +0100211 *(.text.init.refok) \
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100212 *(.exit.text.refok) \
213 DEV_KEEP(init.text) \
214 DEV_KEEP(exit.text) \
215 CPU_KEEP(init.text) \
216 CPU_KEEP(exit.text) \
217 MEM_KEEP(init.text) \
218 MEM_KEEP(exit.text)
219
Sam Ravnborg76647092007-05-13 00:31:33 +0200220
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000221/* sched.text is aling to function alignment to secure we have same
222 * address even at second ld pass when generating System.map */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223#define SCHED_TEXT \
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000224 ALIGN_FUNCTION(); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 VMLINUX_SYMBOL(__sched_text_start) = .; \
226 *(.sched.text) \
227 VMLINUX_SYMBOL(__sched_text_end) = .;
228
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000229/* spinlock.text is aling to function alignment to secure we have same
230 * address even at second ld pass when generating System.map */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231#define LOCK_TEXT \
Sam Ravnborg6d30e3a2005-07-14 20:15:44 +0000232 ALIGN_FUNCTION(); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 VMLINUX_SYMBOL(__lock_text_start) = .; \
234 *(.spinlock.text) \
235 VMLINUX_SYMBOL(__lock_text_end) = .;
Prasanna S Panchamukhid0aaff92005-09-06 15:19:26 -0700236
237#define KPROBES_TEXT \
238 ALIGN_FUNCTION(); \
239 VMLINUX_SYMBOL(__kprobes_text_start) = .; \
240 *(.kprobes.text) \
241 VMLINUX_SYMBOL(__kprobes_text_end) = .;
Paolo 'Blaisorblade' Giarrussoa7d0c212005-09-10 19:44:54 +0200242
Sam Ravnborg37c514e2008-02-19 21:00:18 +0100243/* Section used for early init (in .S files) */
244#define HEAD_TEXT *(.head.text)
245
Sam Ravnborg01ba2bd2008-01-20 14:15:03 +0100246/* init and exit section handling */
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100247#define INIT_DATA \
248 *(.init.data) \
249 DEV_DISCARD(init.data) \
250 DEV_DISCARD(init.rodata) \
251 CPU_DISCARD(init.data) \
252 CPU_DISCARD(init.rodata) \
253 MEM_DISCARD(init.data) \
254 MEM_DISCARD(init.rodata)
Sam Ravnborg01ba2bd2008-01-20 14:15:03 +0100255
Sam Ravnborgeb8f6892008-01-20 20:07:28 +0100256#define INIT_TEXT \
257 *(.init.text) \
258 DEV_DISCARD(init.text) \
259 CPU_DISCARD(init.text) \
260 MEM_DISCARD(init.text)
261
262#define EXIT_DATA \
263 *(.exit.data) \
264 DEV_DISCARD(exit.data) \
265 DEV_DISCARD(exit.rodata) \
266 CPU_DISCARD(exit.data) \
267 CPU_DISCARD(exit.rodata) \
268 MEM_DISCARD(exit.data) \
269 MEM_DISCARD(exit.rodata)
270
271#define EXIT_TEXT \
272 *(.exit.text) \
273 DEV_DISCARD(exit.text) \
274 CPU_DISCARD(exit.text) \
275 MEM_DISCARD(exit.text)
Sam Ravnborg01ba2bd2008-01-20 14:15:03 +0100276
Paolo 'Blaisorblade' Giarrussoa7d0c212005-09-10 19:44:54 +0200277 /* DWARF debug sections.
278 Symbols in the DWARF debugging sections are relative to
279 the beginning of the section so we begin them at 0. */
280#define DWARF_DEBUG \
281 /* DWARF 1 */ \
282 .debug 0 : { *(.debug) } \
283 .line 0 : { *(.line) } \
284 /* GNU DWARF 1 extensions */ \
285 .debug_srcinfo 0 : { *(.debug_srcinfo) } \
286 .debug_sfnames 0 : { *(.debug_sfnames) } \
287 /* DWARF 1.1 and DWARF 2 */ \
288 .debug_aranges 0 : { *(.debug_aranges) } \
289 .debug_pubnames 0 : { *(.debug_pubnames) } \
290 /* DWARF 2 */ \
291 .debug_info 0 : { *(.debug_info \
292 .gnu.linkonce.wi.*) } \
293 .debug_abbrev 0 : { *(.debug_abbrev) } \
294 .debug_line 0 : { *(.debug_line) } \
295 .debug_frame 0 : { *(.debug_frame) } \
296 .debug_str 0 : { *(.debug_str) } \
297 .debug_loc 0 : { *(.debug_loc) } \
298 .debug_macinfo 0 : { *(.debug_macinfo) } \
299 /* SGI/MIPS DWARF 2 extensions */ \
300 .debug_weaknames 0 : { *(.debug_weaknames) } \
301 .debug_funcnames 0 : { *(.debug_funcnames) } \
302 .debug_typenames 0 : { *(.debug_typenames) } \
303 .debug_varnames 0 : { *(.debug_varnames) } \
304
305 /* Stabs debugging sections. */
306#define STABS_DEBUG \
307 .stab 0 : { *(.stab) } \
308 .stabstr 0 : { *(.stabstr) } \
309 .stab.excl 0 : { *(.stab.excl) } \
310 .stab.exclstr 0 : { *(.stab.exclstr) } \
311 .stab.index 0 : { *(.stab.index) } \
312 .stab.indexstr 0 : { *(.stab.indexstr) } \
313 .comment 0 : { *(.comment) }
Jeremy Fitzhardinge9c9b8b32006-09-25 23:32:26 -0700314
Jan Beulich6360b1f2008-05-12 15:44:41 +0200315#ifdef CONFIG_GENERIC_BUG
Jeremy Fitzhardinge7664c5a2006-12-08 02:36:19 -0800316#define BUG_TABLE \
317 . = ALIGN(8); \
318 __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
319 __start___bug_table = .; \
320 *(__bug_table) \
321 __stop___bug_table = .; \
322 }
Jan Beulich6360b1f2008-05-12 15:44:41 +0200323#else
324#define BUG_TABLE
325#endif
Jeremy Fitzhardinge7664c5a2006-12-08 02:36:19 -0800326
Jeremy Fitzhardinge9c9b8b32006-09-25 23:32:26 -0700327#define NOTES \
Roland McGrathcbe87122007-07-19 01:48:36 -0700328 .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \
329 VMLINUX_SYMBOL(__start_notes) = .; \
330 *(.note.*) \
331 VMLINUX_SYMBOL(__stop_notes) = .; \
332 }
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700333
334#define INITCALLS \
Linus Torvaldsb3438f82006-11-20 11:47:18 -0800335 *(.initcall0.init) \
336 *(.initcall0s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700337 *(.initcall1.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700338 *(.initcall1s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700339 *(.initcall2.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700340 *(.initcall2s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700341 *(.initcall3.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700342 *(.initcall3s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700343 *(.initcall4.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700344 *(.initcall4s.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700345 *(.initcall5.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700346 *(.initcall5s.init) \
Linus Torvalds8d610dd2006-12-11 12:12:04 -0800347 *(.initcallrootfs.init) \
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700348 *(.initcall6.init) \
Andrew Morton735a7ff2006-10-27 11:42:37 -0700349 *(.initcall6s.init) \
350 *(.initcall7.init) \
351 *(.initcall7s.init)
Andrew Morton61ce1ef2006-10-27 11:41:44 -0700352
Fenghua Yu5fb7dc32007-07-19 01:48:12 -0700353#define PERCPU(align) \
354 . = ALIGN(align); \
355 __per_cpu_start = .; \
356 .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \
357 *(.data.percpu) \
358 *(.data.percpu.shared_aligned) \
359 } \
360 __per_cpu_end = .;