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5a0015d6 CZ |
1 | /* |
2 | * arch/xtensa/kernel/vmlinux.lds.S | |
3 | * | |
4 | * Xtensa linker script | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | * | |
2d1c645c | 10 | * Copyright (C) 2001 - 2008 Tensilica Inc. |
5a0015d6 CZ |
11 | * |
12 | * Chris Zankel <chris@zankel.net> | |
13 | * Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca> | |
14 | * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com> | |
15 | */ | |
16 | ||
17 | #include <asm-generic/vmlinux.lds.h> | |
cd3db323 TA |
18 | #include <asm/page.h> |
19 | #include <asm/thread_info.h> | |
5a0015d6 | 20 | |
e85e335f | 21 | #include <asm/vectors.h> |
367b8112 | 22 | #include <variant/core.h> |
fc862ee9 | 23 | |
5a0015d6 CZ |
24 | OUTPUT_ARCH(xtensa) |
25 | ENTRY(_start) | |
26 | ||
173d6681 | 27 | #ifdef __XTENSA_EB__ |
5a0015d6 CZ |
28 | jiffies = jiffies_64 + 4; |
29 | #else | |
30 | jiffies = jiffies_64; | |
31 | #endif | |
32 | ||
5a0015d6 CZ |
33 | /* Note: In the following macros, it would be nice to specify only the |
34 | vector name and section kind and construct "sym" and "section" using | |
35 | CPP concatenation, but that does not work reliably. Concatenating a | |
36 | string with "." produces an invalid token. CPP will not print a | |
37 | warning because it thinks this is an assembly file, but it leaves | |
38 | them as multiple tokens and there may or may not be whitespace | |
39 | between them. */ | |
40 | ||
41 | /* Macro for a relocation entry */ | |
42 | ||
43 | #define RELOCATE_ENTRY(sym, section) \ | |
44 | LONG(sym ## _start); \ | |
45 | LONG(sym ## _end); \ | |
46 | LONG(LOADADDR(section)) | |
47 | ||
f8f02ca7 MF |
48 | /* |
49 | * Macro to define a section for a vector. When CONFIG_VECTORS_OFFSET is | |
50 | * defined code for every vector is located with other init data. At startup | |
51 | * time head.S copies code for every vector to its final position according | |
52 | * to description recorded in the corresponding RELOCATE_ENTRY. | |
5a0015d6 CZ |
53 | */ |
54 | ||
b46dcfa3 | 55 | #ifdef CONFIG_VECTORS_OFFSET |
f8f02ca7 MF |
56 | #define SECTION_VECTOR(sym, section, addr, prevsec) \ |
57 | section addr : AT(((LOADADDR(prevsec) + SIZEOF(prevsec)) + 3) & ~ 3) \ | |
5a0015d6 CZ |
58 | { \ |
59 | . = ALIGN(4); \ | |
60 | sym ## _start = ABSOLUTE(.); \ | |
61 | *(section) \ | |
62 | sym ## _end = ABSOLUTE(.); \ | |
63 | } | |
b46dcfa3 MF |
64 | #else |
65 | #define SECTION_VECTOR(section, addr) \ | |
66 | . = addr; \ | |
67 | *(section) | |
68 | #endif | |
5a0015d6 CZ |
69 | |
70 | /* | |
71 | * Mapping of input sections to output sections when linking. | |
72 | */ | |
73 | ||
74 | SECTIONS | |
75 | { | |
173d6681 | 76 | . = KERNELOFFSET; |
5a0015d6 CZ |
77 | /* .text section */ |
78 | ||
79 | _text = .; | |
80 | _stext = .; | |
5a0015d6 CZ |
81 | |
82 | .text : | |
83 | { | |
0ebdcb4d TA |
84 | /* The HEAD_TEXT section must be the first section! */ |
85 | HEAD_TEXT | |
b46dcfa3 MF |
86 | |
87 | #ifndef CONFIG_VECTORS_OFFSET | |
88 | . = ALIGN(PAGE_SIZE); | |
89 | _vecbase = .; | |
90 | ||
91 | SECTION_VECTOR (.WindowVectors.text, WINDOW_VECTORS_VADDR) | |
92 | #if XCHAL_EXCM_LEVEL >= 2 | |
93 | SECTION_VECTOR (.Level2InterruptVector.text, INTLEVEL2_VECTOR_VADDR) | |
94 | #endif | |
95 | #if XCHAL_EXCM_LEVEL >= 3 | |
96 | SECTION_VECTOR (.Level3InterruptVector.text, INTLEVEL3_VECTOR_VADDR) | |
97 | #endif | |
98 | #if XCHAL_EXCM_LEVEL >= 4 | |
99 | SECTION_VECTOR (.Level4InterruptVector.text, INTLEVEL4_VECTOR_VADDR) | |
100 | #endif | |
101 | #if XCHAL_EXCM_LEVEL >= 5 | |
102 | SECTION_VECTOR (.Level5InterruptVector.text, INTLEVEL5_VECTOR_VADDR) | |
103 | #endif | |
104 | #if XCHAL_EXCM_LEVEL >= 6 | |
105 | SECTION_VECTOR (.Level6InterruptVector.text, INTLEVEL6_VECTOR_VADDR) | |
106 | #endif | |
b46dcfa3 | 107 | SECTION_VECTOR (.DebugInterruptVector.text, DEBUG_VECTOR_VADDR) |
b46dcfa3 | 108 | SECTION_VECTOR (.KernelExceptionVector.text, KERNEL_VECTOR_VADDR) |
b46dcfa3 | 109 | SECTION_VECTOR (.UserExceptionVector.text, USER_VECTOR_VADDR) |
b46dcfa3 MF |
110 | SECTION_VECTOR (.DoubleExceptionVector.text, DOUBLEEXC_VECTOR_VADDR) |
111 | #endif | |
112 | ||
f8f02ca7 MF |
113 | IRQENTRY_TEXT |
114 | SOFTIRQENTRY_TEXT | |
115 | ENTRY_TEXT | |
78f3cdfa | 116 | TEXT_TEXT |
f8f02ca7 MF |
117 | SCHED_TEXT |
118 | CPUIDLE_TEXT | |
119 | LOCK_TEXT | |
5a0015d6 CZ |
120 | |
121 | } | |
122 | _etext = .; | |
de4f6e5b | 123 | PROVIDE (etext = .); |
5a0015d6 CZ |
124 | |
125 | . = ALIGN(16); | |
126 | ||
127 | RODATA | |
128 | ||
129 | /* Relocation table */ | |
130 | ||
5a0015d6 CZ |
131 | .fixup : { *(.fixup) } |
132 | ||
cd3db323 | 133 | EXCEPTION_TABLE(16) |
4119ba21 | 134 | NOTES |
5a0015d6 CZ |
135 | /* Data section */ |
136 | ||
5e7b6ed8 | 137 | _sdata = .; |
cd3db323 | 138 | RW_DATA_SECTION(XCHAL_ICACHE_LINESIZE, PAGE_SIZE, THREAD_SIZE) |
5a0015d6 CZ |
139 | _edata = .; |
140 | ||
5a0015d6 CZ |
141 | /* Initialization code and data: */ |
142 | ||
cd3db323 | 143 | . = ALIGN(PAGE_SIZE); |
5a0015d6 | 144 | __init_begin = .; |
cd3db323 | 145 | INIT_TEXT_SECTION(PAGE_SIZE) |
5a0015d6 CZ |
146 | |
147 | .init.data : | |
148 | { | |
01ba2bdc | 149 | INIT_DATA |
5a0015d6 CZ |
150 | . = ALIGN(0x4); |
151 | __tagtable_begin = .; | |
152 | *(.taglist) | |
153 | __tagtable_end = .; | |
de4f6e5b CZ |
154 | |
155 | . = ALIGN(16); | |
156 | __boot_reloc_table_start = ABSOLUTE(.); | |
157 | ||
b46dcfa3 | 158 | #ifdef CONFIG_VECTORS_OFFSET |
de4f6e5b CZ |
159 | RELOCATE_ENTRY(_WindowVectors_text, |
160 | .WindowVectors.text); | |
2d1c645c MG |
161 | #if XCHAL_EXCM_LEVEL >= 2 |
162 | RELOCATE_ENTRY(_Level2InterruptVector_text, | |
163 | .Level2InterruptVector.text); | |
164 | #endif | |
165 | #if XCHAL_EXCM_LEVEL >= 3 | |
166 | RELOCATE_ENTRY(_Level3InterruptVector_text, | |
167 | .Level3InterruptVector.text); | |
168 | #endif | |
169 | #if XCHAL_EXCM_LEVEL >= 4 | |
170 | RELOCATE_ENTRY(_Level4InterruptVector_text, | |
171 | .Level4InterruptVector.text); | |
172 | #endif | |
173 | #if XCHAL_EXCM_LEVEL >= 5 | |
174 | RELOCATE_ENTRY(_Level5InterruptVector_text, | |
175 | .Level5InterruptVector.text); | |
176 | #endif | |
177 | #if XCHAL_EXCM_LEVEL >= 6 | |
178 | RELOCATE_ENTRY(_Level6InterruptVector_text, | |
179 | .Level6InterruptVector.text); | |
180 | #endif | |
de4f6e5b CZ |
181 | RELOCATE_ENTRY(_KernelExceptionVector_text, |
182 | .KernelExceptionVector.text); | |
183 | RELOCATE_ENTRY(_UserExceptionVector_text, | |
184 | .UserExceptionVector.text); | |
de4f6e5b CZ |
185 | RELOCATE_ENTRY(_DoubleExceptionVector_text, |
186 | .DoubleExceptionVector.text); | |
6d15d109 MG |
187 | RELOCATE_ENTRY(_DebugInterruptVector_text, |
188 | .DebugInterruptVector.text); | |
b46dcfa3 | 189 | #endif |
f615136c | 190 | #if defined(CONFIG_SMP) |
f615136c MF |
191 | RELOCATE_ENTRY(_SecondaryResetVector_text, |
192 | .SecondaryResetVector.text); | |
193 | #endif | |
194 | ||
de4f6e5b CZ |
195 | |
196 | __boot_reloc_table_end = ABSOLUTE(.) ; | |
5a0015d6 | 197 | |
cd3db323 TA |
198 | INIT_SETUP(XCHAL_ICACHE_LINESIZE) |
199 | INIT_CALLS | |
200 | CON_INITCALL | |
201 | SECURITY_INITCALL | |
202 | INIT_RAM_FS | |
5a0015d6 | 203 | } |
de4f6e5b | 204 | |
0415b00d | 205 | PERCPU_SECTION(XCHAL_ICACHE_LINESIZE) |
de4f6e5b | 206 | |
5a0015d6 CZ |
207 | /* We need this dummy segment here */ |
208 | ||
209 | . = ALIGN(4); | |
210 | .dummy : { LONG(0) } | |
211 | ||
b46dcfa3 | 212 | #ifdef CONFIG_VECTORS_OFFSET |
5a0015d6 CZ |
213 | /* The vectors are relocated to the real position at startup time */ |
214 | ||
215 | SECTION_VECTOR (_WindowVectors_text, | |
216 | .WindowVectors.text, | |
f8f02ca7 | 217 | WINDOW_VECTORS_VADDR, |
5a0015d6 | 218 | .dummy) |
5a0015d6 CZ |
219 | SECTION_VECTOR (_DebugInterruptVector_text, |
220 | .DebugInterruptVector.text, | |
e85e335f | 221 | DEBUG_VECTOR_VADDR, |
f8f02ca7 | 222 | .WindowVectors.text) |
2d1c645c MG |
223 | #undef LAST |
224 | #define LAST .DebugInterruptVector.text | |
225 | #if XCHAL_EXCM_LEVEL >= 2 | |
226 | SECTION_VECTOR (_Level2InterruptVector_text, | |
227 | .Level2InterruptVector.text, | |
e85e335f | 228 | INTLEVEL2_VECTOR_VADDR, |
f8f02ca7 | 229 | LAST) |
2d1c645c MG |
230 | # undef LAST |
231 | # define LAST .Level2InterruptVector.text | |
232 | #endif | |
233 | #if XCHAL_EXCM_LEVEL >= 3 | |
234 | SECTION_VECTOR (_Level3InterruptVector_text, | |
235 | .Level3InterruptVector.text, | |
e85e335f | 236 | INTLEVEL3_VECTOR_VADDR, |
f8f02ca7 | 237 | LAST) |
2d1c645c MG |
238 | # undef LAST |
239 | # define LAST .Level3InterruptVector.text | |
240 | #endif | |
241 | #if XCHAL_EXCM_LEVEL >= 4 | |
242 | SECTION_VECTOR (_Level4InterruptVector_text, | |
243 | .Level4InterruptVector.text, | |
e85e335f | 244 | INTLEVEL4_VECTOR_VADDR, |
f8f02ca7 | 245 | LAST) |
2d1c645c MG |
246 | # undef LAST |
247 | # define LAST .Level4InterruptVector.text | |
248 | #endif | |
249 | #if XCHAL_EXCM_LEVEL >= 5 | |
250 | SECTION_VECTOR (_Level5InterruptVector_text, | |
251 | .Level5InterruptVector.text, | |
e85e335f | 252 | INTLEVEL5_VECTOR_VADDR, |
f8f02ca7 | 253 | LAST) |
2d1c645c MG |
254 | # undef LAST |
255 | # define LAST .Level5InterruptVector.text | |
256 | #endif | |
257 | #if XCHAL_EXCM_LEVEL >= 6 | |
258 | SECTION_VECTOR (_Level6InterruptVector_text, | |
259 | .Level6InterruptVector.text, | |
e85e335f | 260 | INTLEVEL6_VECTOR_VADDR, |
f8f02ca7 | 261 | LAST) |
2d1c645c MG |
262 | # undef LAST |
263 | # define LAST .Level6InterruptVector.text | |
264 | #endif | |
5a0015d6 CZ |
265 | SECTION_VECTOR (_KernelExceptionVector_text, |
266 | .KernelExceptionVector.text, | |
e85e335f | 267 | KERNEL_VECTOR_VADDR, |
f8f02ca7 MF |
268 | LAST) |
269 | #undef LAST | |
5a0015d6 CZ |
270 | SECTION_VECTOR (_UserExceptionVector_text, |
271 | .UserExceptionVector.text, | |
e85e335f | 272 | USER_VECTOR_VADDR, |
f8f02ca7 | 273 | .KernelExceptionVector.text) |
5a0015d6 CZ |
274 | SECTION_VECTOR (_DoubleExceptionVector_text, |
275 | .DoubleExceptionVector.text, | |
e85e335f | 276 | DOUBLEEXC_VECTOR_VADDR, |
f8f02ca7 | 277 | .UserExceptionVector.text) |
5a0015d6 CZ |
278 | |
279 | . = (LOADADDR( .DoubleExceptionVector.text ) + SIZEOF( .DoubleExceptionVector.text ) + 3) & ~ 3; | |
f615136c | 280 | |
b46dcfa3 | 281 | #endif |
f615136c MF |
282 | #if defined(CONFIG_SMP) |
283 | ||
f615136c MF |
284 | SECTION_VECTOR (_SecondaryResetVector_text, |
285 | .SecondaryResetVector.text, | |
286 | RESET_VECTOR1_VADDR, | |
ab45fb14 | 287 | .DoubleExceptionVector.text) |
f615136c MF |
288 | |
289 | . = LOADADDR(.SecondaryResetVector.text)+SIZEOF(.SecondaryResetVector.text); | |
290 | ||
291 | #endif | |
292 | ||
cd3db323 | 293 | . = ALIGN(PAGE_SIZE); |
5a0015d6 CZ |
294 | |
295 | __init_end = .; | |
296 | ||
cd3db323 | 297 | BSS_SECTION(0, 8192, 0) |
de4f6e5b | 298 | |
5a0015d6 CZ |
299 | _end = .; |
300 | ||
de4f6e5b CZ |
301 | .xt.lit : { *(.xt.lit) } |
302 | .xt.prop : { *(.xt.prop) } | |
5a0015d6 CZ |
303 | |
304 | .debug 0 : { *(.debug) } | |
305 | .line 0 : { *(.line) } | |
306 | .debug_srcinfo 0 : { *(.debug_srcinfo) } | |
307 | .debug_sfnames 0 : { *(.debug_sfnames) } | |
308 | .debug_aranges 0 : { *(.debug_aranges) } | |
309 | .debug_pubnames 0 : { *(.debug_pubnames) } | |
310 | .debug_info 0 : { *(.debug_info) } | |
311 | .debug_abbrev 0 : { *(.debug_abbrev) } | |
312 | .debug_line 0 : { *(.debug_line) } | |
313 | .debug_frame 0 : { *(.debug_frame) } | |
314 | .debug_str 0 : { *(.debug_str) } | |
315 | .debug_loc 0 : { *(.debug_loc) } | |
316 | .debug_macinfo 0 : { *(.debug_macinfo) } | |
317 | .debug_weaknames 0 : { *(.debug_weaknames) } | |
318 | .debug_funcnames 0 : { *(.debug_funcnames) } | |
319 | .debug_typenames 0 : { *(.debug_typenames) } | |
320 | .debug_varnames 0 : { *(.debug_varnames) } | |
321 | ||
322 | .xt.insn 0 : | |
323 | { | |
324 | *(.xt.insn) | |
325 | *(.gnu.linkonce.x*) | |
326 | } | |
327 | ||
328 | .xt.lit 0 : | |
329 | { | |
330 | *(.xt.lit) | |
331 | *(.gnu.linkonce.p*) | |
332 | } | |
023bf6f1 TH |
333 | |
334 | /* Sections to be discarded */ | |
335 | DISCARDS | |
5a0015d6 | 336 | } |