drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / kernel / vmlinux.lds.S
CommitLineData
1da177e4
LT
1/* ld script to make ARM Linux kernel
2 * taken from the i386 version by Russell King
3 * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
4 */
5
6#include <asm-generic/vmlinux.lds.h>
f0d5375e 7#include <asm/cache.h>
4f7a1812 8#include <asm/thread_info.h>
37d07b72 9#include <asm/memory.h>
f6430a93 10#include <asm/page.h>
1da177e4 11
5085f3ff 12#define PROC_INFO \
b8b9987f 13 . = ALIGN(4); \
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14 VMLINUX_SYMBOL(__proc_info_begin) = .; \
15 *(.proc.info.init) \
16 VMLINUX_SYMBOL(__proc_info_end) = .;
17
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WD
18#define IDMAP_TEXT \
19 ALIGN_FUNCTION(); \
20 VMLINUX_SYMBOL(__idmap_text_start) = .; \
21 *(.idmap.text) \
9e9a367c 22 VMLINUX_SYMBOL(__idmap_text_end) = .; \
0394e1f6 23 . = ALIGN(32); \
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CD
24 VMLINUX_SYMBOL(__hyp_idmap_text_start) = .; \
25 *(.hyp.idmap.text) \
26 VMLINUX_SYMBOL(__hyp_idmap_text_end) = .;
8903826d 27
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RK
28#ifdef CONFIG_HOTPLUG_CPU
29#define ARM_CPU_DISCARD(x)
30#define ARM_CPU_KEEP(x) x
31#else
32#define ARM_CPU_DISCARD(x) x
33#define ARM_CPU_KEEP(x)
34#endif
35
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SG
36#if (defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)) || \
37 defined(CONFIG_GENERIC_BUG)
a9ad21fe 38#define ARM_EXIT_KEEP(x) x
6760b109 39#define ARM_EXIT_DISCARD(x)
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40#else
41#define ARM_EXIT_KEEP(x)
6760b109 42#define ARM_EXIT_DISCARD(x) x
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43#endif
44
1da177e4
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45OUTPUT_ARCH(arm)
46ENTRY(stext)
37d07b72 47
1da177e4
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48#ifndef __ARMEB__
49jiffies = jiffies_64;
50#else
51jiffies = jiffies_64 + 4;
52#endif
37d07b72 53
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54SECTIONS
55{
39df8887 56 /*
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57 * XXX: The linker does not define how output sections are
58 * assigned to input sections when there are multiple statements
59 * matching the same input section name. There is no documented
60 * order of matching.
61 *
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62 * unwind exit sections must be discarded before the rest of the
63 * unwind sections get included.
64 */
65 /DISCARD/ : {
66 *(.ARM.exidx.exit.text)
67 *(.ARM.extab.exit.text)
68 ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text))
69 ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text))
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70 ARM_EXIT_DISCARD(EXIT_TEXT)
71 ARM_EXIT_DISCARD(EXIT_DATA)
72 EXIT_CALL
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73#ifndef CONFIG_HOTPLUG
74 *(.ARM.exidx.devexit.text)
75 *(.ARM.extab.devexit.text)
76#endif
77#ifndef CONFIG_MMU
78 *(.fixup)
79 *(__ex_table)
80#endif
81#ifndef CONFIG_SMP_ON_UP
82 *(.alt.smp.init)
83#endif
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84 *(.discard)
85 *(.discard.*)
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RK
86 }
87
37d07b72 88#ifdef CONFIG_XIP_KERNEL
9d4f13e5 89 . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
37d07b72 90#else
9d4f13e5 91 . = PAGE_OFFSET + TEXT_OFFSET;
37d07b72 92#endif
1604d79d 93 .head.text : {
e2f81844 94 _text = .;
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RK
95 HEAD_TEXT
96 }
3835d69a 97 .text : { /* Real text segment */
e2f81844 98 _stext = .; /* Text and read-only data */
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RK
99 __exception_text_start = .;
100 *(.exception.text)
101 __exception_text_end = .;
102 IRQENTRY_TEXT
103 TEXT_TEXT
104 SCHED_TEXT
105 LOCK_TEXT
106 KPROBES_TEXT
8903826d 107 IDMAP_TEXT
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RK
108#ifdef CONFIG_MMU
109 *(.fixup)
110#endif
111 *(.gnu.warning)
112 *(.glue_7)
113 *(.glue_7t)
114 . = ALIGN(4);
115 *(.got) /* Global offset table */
116 ARM_CPU_KEEP(PROC_INFO)
117 }
118
119 RO_DATA(PAGE_SIZE)
120
ee951c63
SB
121 . = ALIGN(4);
122 __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
123 __start___ex_table = .;
124#ifdef CONFIG_MMU
125 *(__ex_table)
126#endif
127 __stop___ex_table = .;
128 }
129
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RK
130#ifdef CONFIG_ARM_UNWIND
131 /*
132 * Stack unwinding tables
133 */
134 . = ALIGN(8);
135 .ARM.unwind_idx : {
136 __start_unwind_idx = .;
137 *(.ARM.exidx*)
138 __stop_unwind_idx = .;
139 }
140 .ARM.unwind_tab : {
141 __start_unwind_tab = .;
142 *(.ARM.extab*)
143 __stop_unwind_tab = .;
144 }
145#endif
146
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PM
147 NOTES
148
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RK
149 _etext = .; /* End of text and rodata section */
150
151#ifndef CONFIG_XIP_KERNEL
152 . = ALIGN(PAGE_SIZE);
153 __init_begin = .;
154#endif
0477cd42
RK
155 /*
156 * The vectors and stubs are relocatable code, and the
157 * only thing that matters is their relative offsets
158 */
159 __vectors_start = .;
160 .vectors 0 : AT(__vectors_start) {
161 *(.vectors)
162 }
163 . = __vectors_start + SIZEOF(.vectors);
164 __vectors_end = .;
165
166 __stubs_start = .;
167 .stubs 0x1000 : AT(__stubs_start) {
168 *(.stubs)
169 }
170 . = __stubs_start + SIZEOF(.stubs);
171 __stubs_end = .;
3835d69a 172
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173 INIT_TEXT_SECTION(8)
174 .exit.text : {
175 ARM_EXIT_KEEP(EXIT_TEXT)
176 }
177 .init.proc.info : {
5085f3ff 178 ARM_CPU_DISCARD(PROC_INFO)
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179 }
180 .init.arch.info : {
1da177e4 181 __arch_info_begin = .;
1604d79d 182 *(.arch.info.init)
1da177e4 183 __arch_info_end = .;
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RK
184 }
185 .init.tagtable : {
1da177e4 186 __tagtable_begin = .;
1604d79d 187 *(.taglist.init)
1da177e4 188 __tagtable_end = .;
1604d79d 189 }
f00ec48f 190#ifdef CONFIG_SMP_ON_UP
1604d79d 191 .init.smpalt : {
f00ec48f 192 __smpalt_begin = .;
1604d79d 193 *(.alt.smp.init)
f00ec48f 194 __smpalt_end = .;
1604d79d 195 }
f00ec48f 196#endif
1604d79d 197 .init.pv_table : {
dc21af99 198 __pv_table_begin = .;
1604d79d 199 *(.pv_table)
dc21af99 200 __pv_table_end = .;
1604d79d
RK
201 }
202 .init.data : {
203#ifndef CONFIG_XIP_KERNEL
204 INIT_DATA
205#endif
78d7530a 206 INIT_SETUP(16)
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207 INIT_CALLS
208 CON_INITCALL
209 SECURITY_INITCALL
210 INIT_RAM_FS
1604d79d 211 }
1da177e4 212#ifndef CONFIG_XIP_KERNEL
1604d79d 213 .exit.data : {
a9ad21fe 214 ARM_EXIT_KEEP(EXIT_DATA)
1da177e4 215 }
1604d79d 216#endif
1da177e4 217
9973290c 218#ifdef CONFIG_SMP
f0d5375e 219 PERCPU_SECTION(L1_CACHE_BYTES)
9973290c 220#endif
78d7530a 221
1da177e4
LT
222#ifdef CONFIG_XIP_KERNEL
223 __data_loc = ALIGN(4); /* location in binary */
9d4f13e5 224 . = PAGE_OFFSET + TEXT_OFFSET;
1da177e4 225#else
3835d69a 226 __init_end = .;
4f7a1812 227 . = ALIGN(THREAD_SIZE);
1da177e4
LT
228 __data_loc = .;
229#endif
230
231 .data : AT(__data_loc) {
37efe642 232 _data = .; /* address in memory */
8c7e6574 233 _sdata = .;
1da177e4
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234
235 /*
236 * first, the init task union, aligned
237 * to an 8192 byte boundary.
238 */
78d7530a 239 INIT_TASK_DATA(THREAD_SIZE)
1da177e4
LT
240
241#ifdef CONFIG_XIP_KERNEL
f6430a93 242 . = ALIGN(PAGE_SIZE);
1da177e4 243 __init_begin = .;
01ba2bdc 244 INIT_DATA
a9ad21fe 245 ARM_EXIT_KEEP(EXIT_DATA)
f6430a93 246 . = ALIGN(PAGE_SIZE);
1da177e4
LT
247 __init_end = .;
248#endif
249
78d7530a 250 NOSAVE_DATA
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WD
251 CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
252 READ_MOSTLY_DATA(L1_CACHE_BYTES)
1da177e4
LT
253
254 /*
255 * and the usual data section
256 */
ca967258 257 DATA_DATA
1da177e4
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258 CONSTRUCTORS
259
260 _edata = .;
261 }
e98ff7f6 262 _edata_loc = __data_loc + SIZEOF(.data);
1da177e4 263
bc581770
LW
264#ifdef CONFIG_HAVE_TCM
265 /*
266 * We align everything to a page boundary so we can
267 * free it after init has commenced and TCM contents have
268 * been copied to its destination.
269 */
270 .tcm_start : {
271 . = ALIGN(PAGE_SIZE);
272 __tcm_start = .;
273 __itcm_start = .;
274 }
275
276 /*
277 * Link these to the ITCM RAM
278 * Put VMA to the TCM address and LMA to the common RAM
279 * and we'll upload the contents from RAM to TCM and free
280 * the used RAM after that.
281 */
282 .text_itcm ITCM_OFFSET : AT(__itcm_start)
283 {
284 __sitcm_text = .;
285 *(.tcm.text)
286 *(.tcm.rodata)
287 . = ALIGN(4);
288 __eitcm_text = .;
289 }
290
291 /*
292 * Reset the dot pointer, this is needed to create the
293 * relative __dtcm_start below (to be used as extern in code).
294 */
295 . = ADDR(.tcm_start) + SIZEOF(.tcm_start) + SIZEOF(.text_itcm);
296
297 .dtcm_start : {
298 __dtcm_start = .;
299 }
300
301 /* TODO: add remainder of ITCM as well, that can be used for data! */
302 .data_dtcm DTCM_OFFSET : AT(__dtcm_start)
303 {
304 . = ALIGN(4);
305 __sdtcm_data = .;
306 *(.tcm.data)
307 . = ALIGN(4);
308 __edtcm_data = .;
309 }
310
311 /* Reset the dot pointer or the linker gets confused */
312 . = ADDR(.dtcm_start) + SIZEOF(.data_dtcm);
313
314 /* End marker for freeing TCM copy in linked object */
315 .tcm_end : AT(ADDR(.dtcm_start) + SIZEOF(.data_dtcm)){
316 . = ALIGN(PAGE_SIZE);
317 __tcm_end = .;
318 }
319#endif
320
78d7530a
NE
321 BSS_SECTION(0, 0, 0)
322 _end = .;
323
324 STABS_DEBUG
1da177e4
LT
325 .comment 0 : { *(.comment) }
326}
327
728f5c07
RK
328/*
329 * These must never be empty
330 * If you have to comment these two assert statements out, your
331 * binutils is too old (for other reasons as well)
332 */
1da177e4
LT
333ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
334ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
0394e1f6
MZ
335/*
336 * The HYP init code can't be more than a page long.
337 * The above comment applies as well.
338 */
339ASSERT(((__hyp_idmap_text_end - __hyp_idmap_text_start) <= PAGE_SIZE), "HYP init code too big")