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1394f032 BW |
1 | /* |
2 | * File: arch/blackfin/kernel/vmlinux.lds.S | |
3 | * Based on: none - original work | |
4 | * Author: | |
5 | * | |
6 | * Created: Tue Sep 21 2004 | |
7 | * Description: Master linker script for blackfin architecture | |
8 | * | |
9 | * Modified: | |
de6a9520 | 10 | * Copyright 2004-2007 Analog Devices Inc. |
1394f032 BW |
11 | * |
12 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, see the file COPYING, or write | |
26 | * to the Free Software Foundation, Inc., | |
27 | * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
28 | */ | |
29 | ||
30 | #define VMLINUX_SYMBOL(_sym_) _##_sym_ | |
31 | ||
32 | #include <asm-generic/vmlinux.lds.h> | |
33 | #include <asm/mem_map.h> | |
520473b0 | 34 | #include <asm/page.h> |
0fa63ad7 | 35 | #include <asm/thread_info.h> |
1394f032 | 36 | |
1394f032 BW |
37 | OUTPUT_FORMAT("elf32-bfin") |
38 | ENTRY(__start) | |
39 | _jiffies = _jiffies_64; | |
40 | ||
1394f032 BW |
41 | SECTIONS |
42 | { | |
43 | . = CONFIG_BOOT_LOAD; | |
b7627acc MF |
44 | /* Neither the text, ro_data or bss section need to be aligned |
45 | * So pack them back to back | |
46 | */ | |
1394f032 BW |
47 | .text : |
48 | { | |
de6a9520 MF |
49 | __text = .; |
50 | _text = .; | |
51 | __stext = .; | |
7664709b | 52 | TEXT_TEXT |
b8d0c778 | 53 | #ifndef CONFIG_SCHEDULE_L1 |
1394f032 | 54 | SCHED_TEXT |
b8d0c778 | 55 | #endif |
de6a9520 | 56 | LOCK_TEXT |
1ee76d7e | 57 | IRQENTRY_TEXT |
27d875f2 MF |
58 | KPROBES_TEXT |
59 | *(.text.*) | |
de6a9520 MF |
60 | *(.fixup) |
61 | ||
bc6e0fa1 MF |
62 | #if !L1_CODE_LENGTH |
63 | *(.l1.text) | |
64 | #endif | |
65 | ||
1394f032 | 66 | . = ALIGN(16); |
de6a9520 | 67 | ___start___ex_table = .; |
1394f032 | 68 | *(__ex_table) |
de6a9520 | 69 | ___stop___ex_table = .; |
1394f032 | 70 | |
1394f032 | 71 | __etext = .; |
de6a9520 MF |
72 | } |
73 | ||
6f985294 BS |
74 | NOTES |
75 | ||
b7627acc MF |
76 | /* Just in case the first read only is a 32-bit access */ |
77 | RO_DATA(4) | |
78 | ||
79 | .bss : | |
80 | { | |
81 | . = ALIGN(4); | |
82 | ___bss_start = .; | |
83 | *(.bss .bss.*) | |
84 | *(COMMON) | |
bc6e0fa1 MF |
85 | #if !L1_DATA_A_LENGTH |
86 | *(.l1.bss) | |
87 | #endif | |
88 | #if !L1_DATA_B_LENGTH | |
89 | *(.l1.bss.B) | |
90 | #endif | |
13752046 | 91 | . = ALIGN(4); |
b7627acc MF |
92 | ___bss_stop = .; |
93 | } | |
de6a9520 MF |
94 | |
95 | .data : | |
96 | { | |
97 | __sdata = .; | |
b7627acc | 98 | /* This gets done first, so the glob doesn't suck it in */ |
de6a9520 MF |
99 | . = ALIGN(32); |
100 | *(.data.cacheline_aligned) | |
101 | ||
b85b82d9 SZ |
102 | #if !L1_DATA_A_LENGTH |
103 | . = ALIGN(32); | |
104 | *(.data_l1.cacheline_aligned) | |
bc6e0fa1 MF |
105 | *(.l1.data) |
106 | #endif | |
107 | #if !L1_DATA_B_LENGTH | |
108 | *(.l1.data.B) | |
b85b82d9 | 109 | #endif |
07aa7be5 | 110 | #if !L2_LENGTH |
262c3825 SZ |
111 | . = ALIGN(32); |
112 | *(.data_l2.cacheline_aligned) | |
113 | *(.l2.data) | |
114 | #endif | |
b85b82d9 | 115 | |
27d875f2 | 116 | DATA_DATA |
27d875f2 MF |
117 | CONSTRUCTORS |
118 | ||
b7627acc MF |
119 | /* make sure the init_task is aligned to the |
120 | * kernel thread size so we can locate the kernel | |
121 | * stack properly and quickly. | |
122 | */ | |
0fa63ad7 | 123 | . = ALIGN(THREAD_SIZE); |
b7627acc MF |
124 | *(.init_task.data) |
125 | ||
de6a9520 MF |
126 | __edata = .; |
127 | } | |
1394f032 | 128 | |
b7627acc MF |
129 | /* The init section should be last, so when we free it, it goes into |
130 | * the general memory pool, and (hopefully) will decrease fragmentation | |
131 | * a tiny bit. The init section has a _requirement_ that it be | |
132 | * PAGE_SIZE aligned | |
133 | */ | |
134 | . = ALIGN(PAGE_SIZE); | |
de6a9520 | 135 | ___init_begin = .; |
27d875f2 MF |
136 | |
137 | .init.text : | |
1394f032 | 138 | { |
0fa63ad7 | 139 | . = ALIGN(PAGE_SIZE); |
1394f032 | 140 | __sinittext = .; |
01ba2bdc | 141 | INIT_TEXT |
1394f032 | 142 | __einittext = .; |
27d875f2 MF |
143 | } |
144 | .init.data : | |
145 | { | |
146 | . = ALIGN(16); | |
01ba2bdc | 147 | INIT_DATA |
27d875f2 MF |
148 | } |
149 | .init.setup : | |
150 | { | |
1394f032 BW |
151 | . = ALIGN(16); |
152 | ___setup_start = .; | |
153 | *(.init.setup) | |
154 | ___setup_end = .; | |
27d875f2 MF |
155 | } |
156 | .initcall.init : | |
157 | { | |
1394f032 BW |
158 | ___initcall_start = .; |
159 | INITCALLS | |
160 | ___initcall_end = .; | |
27d875f2 MF |
161 | } |
162 | .con_initcall.init : | |
163 | { | |
1394f032 BW |
164 | ___con_initcall_start = .; |
165 | *(.con_initcall.init) | |
166 | ___con_initcall_end = .; | |
27d875f2 | 167 | } |
46fa5eec | 168 | PERCPU(4) |
27d875f2 | 169 | SECURITY_INIT |
70f12567 MF |
170 | |
171 | /* we have to discard exit text and such at runtime, not link time, to | |
172 | * handle embedded cross-section references (alt instructions, bug | |
173 | * table, eh_frame, etc...) | |
174 | */ | |
175 | .exit.text : | |
176 | { | |
177 | EXIT_TEXT | |
178 | } | |
179 | .exit.data : | |
180 | { | |
181 | EXIT_DATA | |
182 | } | |
183 | ||
27d875f2 MF |
184 | .init.ramfs : |
185 | { | |
1394f032 BW |
186 | . = ALIGN(4); |
187 | ___initramfs_start = .; | |
188 | *(.init.ramfs) | |
6f985294 | 189 | . = ALIGN(4); |
1394f032 | 190 | ___initramfs_end = .; |
de6a9520 | 191 | } |
1394f032 | 192 | |
de6a9520 | 193 | __l1_lma_start = .; |
1394f032 | 194 | |
27d875f2 | 195 | .text_l1 L1_CODE_START : AT(LOADADDR(.init.ramfs) + SIZEOF(.init.ramfs)) |
1394f032 BW |
196 | { |
197 | . = ALIGN(4); | |
de6a9520 | 198 | __stext_l1 = .; |
bc6e0fa1 | 199 | *(.l1.text) |
b8d0c778 RG |
200 | #ifdef CONFIG_SCHEDULE_L1 |
201 | SCHED_TEXT | |
202 | #endif | |
1394f032 | 203 | . = ALIGN(4); |
de6a9520 MF |
204 | __etext_l1 = .; |
205 | } | |
4636b301 | 206 | ASSERT (SIZEOF(.text_l1) <= L1_CODE_LENGTH, "L1 text overflow!") |
1394f032 | 207 | |
de6a9520 | 208 | .data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1)) |
1394f032 BW |
209 | { |
210 | . = ALIGN(4); | |
de6a9520 | 211 | __sdata_l1 = .; |
bc6e0fa1 | 212 | *(.l1.data) |
de6a9520 | 213 | __edata_l1 = .; |
1394f032 | 214 | |
1394f032 | 215 | . = ALIGN(32); |
bc6e0fa1 | 216 | *(.data_l1.cacheline_aligned) |
1394f032 | 217 | |
262c3825 SZ |
218 | . = ALIGN(4); |
219 | __sbss_l1 = .; | |
220 | *(.l1.bss) | |
1394f032 | 221 | . = ALIGN(4); |
de6a9520 MF |
222 | __ebss_l1 = .; |
223 | } | |
8d7ac69f | 224 | ASSERT (SIZEOF(.data_l1) <= L1_DATA_A_LENGTH, "L1 data A overflow!") |
de6a9520 MF |
225 | |
226 | .data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1)) | |
1394f032 BW |
227 | { |
228 | . = ALIGN(4); | |
229 | __sdata_b_l1 = .; | |
bc6e0fa1 | 230 | *(.l1.data.B) |
1394f032 BW |
231 | __edata_b_l1 = .; |
232 | ||
233 | . = ALIGN(4); | |
234 | __sbss_b_l1 = .; | |
bc6e0fa1 | 235 | *(.l1.bss.B) |
1394f032 BW |
236 | . = ALIGN(4); |
237 | __ebss_b_l1 = .; | |
de6a9520 | 238 | } |
4636b301 | 239 | ASSERT (SIZEOF(.data_b_l1) <= L1_DATA_B_LENGTH, "L1 data B overflow!") |
1394f032 | 240 | |
6f985294 | 241 | __l2_lma_start = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1); |
262c3825 SZ |
242 | |
243 | .text_data_l2 L2_START : AT(LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1)) | |
244 | { | |
245 | . = ALIGN(4); | |
246 | __stext_l2 = .; | |
07aa7be5 | 247 | *(.l2.text) |
262c3825 SZ |
248 | . = ALIGN(4); |
249 | __etext_l2 = .; | |
250 | ||
251 | . = ALIGN(4); | |
252 | __sdata_l2 = .; | |
07aa7be5 | 253 | *(.l2.data) |
262c3825 SZ |
254 | __edata_l2 = .; |
255 | ||
256 | . = ALIGN(32); | |
257 | *(.data_l2.cacheline_aligned) | |
258 | ||
259 | . = ALIGN(4); | |
260 | __sbss_l2 = .; | |
07aa7be5 | 261 | *(.l2.bss) |
262c3825 SZ |
262 | . = ALIGN(4); |
263 | __ebss_l2 = .; | |
264 | } | |
8d7ac69f | 265 | ASSERT (SIZEOF(.text_data_l2) <= L2_LENGTH, "L2 overflow!") |
6f985294 | 266 | |
36208059 MF |
267 | /* Force trailing alignment of our init section so that when we |
268 | * free our init memory, we don't leave behind a partial page. | |
269 | */ | |
6f985294 | 270 | . = LOADADDR(.text_data_l2) + SIZEOF(.text_data_l2); |
36208059 MF |
271 | . = ALIGN(PAGE_SIZE); |
272 | ___init_end = .; | |
273 | ||
b7627acc | 274 | __end =.; |
de6a9520 | 275 | |
c11b5776 MF |
276 | STABS_DEBUG |
277 | ||
278 | DWARF_DEBUG | |
279 | ||
023bf6f1 | 280 | DISCARDS |
1394f032 | 281 | } |