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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 */ |
4a5e3513 | 99 | CACHELINE_ALIGNED_DATA(32) |
de6a9520 | 100 | |
b85b82d9 SZ |
101 | #if !L1_DATA_A_LENGTH |
102 | . = ALIGN(32); | |
103 | *(.data_l1.cacheline_aligned) | |
bc6e0fa1 MF |
104 | *(.l1.data) |
105 | #endif | |
106 | #if !L1_DATA_B_LENGTH | |
107 | *(.l1.data.B) | |
b85b82d9 | 108 | #endif |
07aa7be5 | 109 | #if !L2_LENGTH |
262c3825 SZ |
110 | . = ALIGN(32); |
111 | *(.data_l2.cacheline_aligned) | |
112 | *(.l2.data) | |
113 | #endif | |
b85b82d9 | 114 | |
27d875f2 | 115 | DATA_DATA |
27d875f2 MF |
116 | CONSTRUCTORS |
117 | ||
4a5e3513 | 118 | INIT_TASK_DATA(THREAD_SIZE) |
b7627acc | 119 | |
de6a9520 MF |
120 | __edata = .; |
121 | } | |
1394f032 | 122 | |
b7627acc MF |
123 | /* The init section should be last, so when we free it, it goes into |
124 | * the general memory pool, and (hopefully) will decrease fragmentation | |
125 | * a tiny bit. The init section has a _requirement_ that it be | |
126 | * PAGE_SIZE aligned | |
127 | */ | |
128 | . = ALIGN(PAGE_SIZE); | |
de6a9520 | 129 | ___init_begin = .; |
27d875f2 | 130 | |
4a5e3513 TA |
131 | INIT_TEXT_SECTION(PAGE_SIZE) |
132 | . = ALIGN(16); | |
133 | INIT_DATA_SECTION(16) | |
46fa5eec | 134 | PERCPU(4) |
70f12567 MF |
135 | |
136 | /* we have to discard exit text and such at runtime, not link time, to | |
137 | * handle embedded cross-section references (alt instructions, bug | |
138 | * table, eh_frame, etc...) | |
139 | */ | |
140 | .exit.text : | |
141 | { | |
142 | EXIT_TEXT | |
143 | } | |
144 | .exit.data : | |
145 | { | |
146 | EXIT_DATA | |
147 | } | |
148 | ||
de6a9520 | 149 | __l1_lma_start = .; |
1394f032 | 150 | |
4a5e3513 | 151 | .text_l1 L1_CODE_START : AT(LOADADDR(.exit.data) + SIZEOF(.exit.data)) |
1394f032 BW |
152 | { |
153 | . = ALIGN(4); | |
de6a9520 | 154 | __stext_l1 = .; |
bc6e0fa1 | 155 | *(.l1.text) |
b8d0c778 RG |
156 | #ifdef CONFIG_SCHEDULE_L1 |
157 | SCHED_TEXT | |
158 | #endif | |
1394f032 | 159 | . = ALIGN(4); |
de6a9520 MF |
160 | __etext_l1 = .; |
161 | } | |
4636b301 | 162 | ASSERT (SIZEOF(.text_l1) <= L1_CODE_LENGTH, "L1 text overflow!") |
1394f032 | 163 | |
de6a9520 | 164 | .data_l1 L1_DATA_A_START : AT(LOADADDR(.text_l1) + SIZEOF(.text_l1)) |
1394f032 BW |
165 | { |
166 | . = ALIGN(4); | |
de6a9520 | 167 | __sdata_l1 = .; |
bc6e0fa1 | 168 | *(.l1.data) |
de6a9520 | 169 | __edata_l1 = .; |
1394f032 | 170 | |
1394f032 | 171 | . = ALIGN(32); |
bc6e0fa1 | 172 | *(.data_l1.cacheline_aligned) |
1394f032 | 173 | |
262c3825 SZ |
174 | . = ALIGN(4); |
175 | __sbss_l1 = .; | |
176 | *(.l1.bss) | |
1394f032 | 177 | . = ALIGN(4); |
de6a9520 MF |
178 | __ebss_l1 = .; |
179 | } | |
8d7ac69f | 180 | ASSERT (SIZEOF(.data_l1) <= L1_DATA_A_LENGTH, "L1 data A overflow!") |
de6a9520 MF |
181 | |
182 | .data_b_l1 L1_DATA_B_START : AT(LOADADDR(.data_l1) + SIZEOF(.data_l1)) | |
1394f032 BW |
183 | { |
184 | . = ALIGN(4); | |
185 | __sdata_b_l1 = .; | |
bc6e0fa1 | 186 | *(.l1.data.B) |
1394f032 BW |
187 | __edata_b_l1 = .; |
188 | ||
189 | . = ALIGN(4); | |
190 | __sbss_b_l1 = .; | |
bc6e0fa1 | 191 | *(.l1.bss.B) |
1394f032 BW |
192 | . = ALIGN(4); |
193 | __ebss_b_l1 = .; | |
de6a9520 | 194 | } |
4636b301 | 195 | ASSERT (SIZEOF(.data_b_l1) <= L1_DATA_B_LENGTH, "L1 data B overflow!") |
1394f032 | 196 | |
6f985294 | 197 | __l2_lma_start = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1); |
262c3825 SZ |
198 | |
199 | .text_data_l2 L2_START : AT(LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1)) | |
200 | { | |
201 | . = ALIGN(4); | |
202 | __stext_l2 = .; | |
07aa7be5 | 203 | *(.l2.text) |
262c3825 SZ |
204 | . = ALIGN(4); |
205 | __etext_l2 = .; | |
206 | ||
207 | . = ALIGN(4); | |
208 | __sdata_l2 = .; | |
07aa7be5 | 209 | *(.l2.data) |
262c3825 SZ |
210 | __edata_l2 = .; |
211 | ||
212 | . = ALIGN(32); | |
213 | *(.data_l2.cacheline_aligned) | |
214 | ||
215 | . = ALIGN(4); | |
216 | __sbss_l2 = .; | |
07aa7be5 | 217 | *(.l2.bss) |
262c3825 SZ |
218 | . = ALIGN(4); |
219 | __ebss_l2 = .; | |
220 | } | |
8d7ac69f | 221 | ASSERT (SIZEOF(.text_data_l2) <= L2_LENGTH, "L2 overflow!") |
6f985294 | 222 | |
36208059 MF |
223 | /* Force trailing alignment of our init section so that when we |
224 | * free our init memory, we don't leave behind a partial page. | |
225 | */ | |
6f985294 | 226 | . = LOADADDR(.text_data_l2) + SIZEOF(.text_data_l2); |
36208059 MF |
227 | . = ALIGN(PAGE_SIZE); |
228 | ___init_end = .; | |
229 | ||
b7627acc | 230 | __end =.; |
de6a9520 | 231 | |
c11b5776 MF |
232 | STABS_DEBUG |
233 | ||
234 | DWARF_DEBUG | |
235 | ||
023bf6f1 | 236 | DISCARDS |
1394f032 | 237 | } |