1 | /** |
---|
2 | * @file linkcmds |
---|
3 | * |
---|
4 | * GBA BSP linker script |
---|
5 | */ |
---|
6 | /* |
---|
7 | * RTEMS GBA BSP |
---|
8 | * |
---|
9 | * Copyright (c) Jeff Frohwein |
---|
10 | * |
---|
11 | * Copyright (c) 2003 Jason Wilkins |
---|
12 | * |
---|
13 | * Copyright (c) 2004 Markku Puro <markku.puro@kopteri.net> |
---|
14 | * |
---|
15 | * The license and distribution terms for this file may be |
---|
16 | * found in the file LICENSE in this distribution or at |
---|
17 | * |
---|
18 | * http://www.rtems.com/license/LICENSE. |
---|
19 | * |
---|
20 | * $Id$ |
---|
21 | */ |
---|
22 | |
---|
23 | /***************************************************************************** |
---|
24 | * This Linker Script is based on work by Jeff Frohwein and Jason Wilkins |
---|
25 | ***************************************************************************** |
---|
26 | * Linker Script v1.3 by Jeff Frohwein |
---|
27 | * : |
---|
28 | * This file is released into the public domain |
---|
29 | * for commercial or non-commercial use with no |
---|
30 | * restrictions placed upon it. |
---|
31 | ***************************************************************************** |
---|
32 | * Copyright 2003, Jason Wilkins. This source code is free for any use except |
---|
33 | * that this copyright notice and the following disclaimers remain intact when |
---|
34 | * the source is distributed. There are absolutely no restrictions on use of |
---|
35 | * object code generated from this source, but the disclaimers remain in force. |
---|
36 | * |
---|
37 | * THIS CODE WAS NOT MADE IN ASSOCIATION WITH NINTENDO AND DOES NOT MAKE USE OF |
---|
38 | * ANY INTELLECTUAL PROPERTY CLAIMED BY NINTENDO. |
---|
39 | * |
---|
40 | * GAMEBOY ADVANCE IS A TRADEMARK OF NINTENDO. |
---|
41 | * |
---|
42 | * THIS CODE HAS BEEN PROVIDED "AS-IS" WITHOUT A WARRANTY OF ANY KIND, EITHER |
---|
43 | * EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO IMPLIED WARRANTIES OF |
---|
44 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE ENTIRE RISK AS TO THE |
---|
45 | * QUALITY OR PERFORMANCE OF THE CODE IS WITH YOU. |
---|
46 | * |
---|
47 | * IN NO EVENT, UNLESS AGREED TO IN WRITING, WILL ANY COPYRIGHT HOLDER, OR ANY |
---|
48 | * OTHER PARTY, BE HELD LIABLE FOR ANY DAMAGES RESULTING FROM THE USE OR |
---|
49 | * INABILITY TO USE THIS CODE. |
---|
50 | * |
---|
51 | *****************************************************************************/ |
---|
52 | /* @cond INCLUDE_ASM */ |
---|
53 | |
---|
54 | OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") |
---|
55 | OUTPUT_ARCH(arm) |
---|
56 | ENTRY(_start) |
---|
57 | |
---|
58 | /************************************************************************* |
---|
59 | The linker script MEMORY directive is not used here due to the fact |
---|
60 | that __ro_start is not always a fixed value. |
---|
61 | ************************************************************************* |
---|
62 | MEMORY |
---|
63 | { |
---|
64 | rom : ORIGIN = 0x08000000 , LENGTH = 96M |
---|
65 | iwram : ORIGIN = 0x03000000 , LENGTH = 32K |
---|
66 | ewram : ORIGIN = 0x02000000 , LENGTH = 256K |
---|
67 | sram : ORIGIN = 0x0E000000 , LENGTH = 64K |
---|
68 | } |
---|
69 | *************************************************************************/ |
---|
70 | __gba_ewram_start = 0x02000000; |
---|
71 | __gba_ewram_end = 0x02040000; |
---|
72 | __gba_iwram_start = 0x03000000; |
---|
73 | __gba_iwram_end = 0x03008000; |
---|
74 | __gba_rom_start = 0x08000000; |
---|
75 | __gba_rom_end = 0x0E000000; |
---|
76 | __gba_sram_start = 0x0E000000; |
---|
77 | __gba_sram_end = 0x0E010000; |
---|
78 | |
---|
79 | __sp_irq_size = 0x2A0; |
---|
80 | _stack_size = 0xA00; |
---|
81 | __irq_vector = __gba_iwram_end - 0x0004; /* 0x03007FFC */ |
---|
82 | __sp_svc = __gba_iwram_end - 0x0020; /* 0x03007FE0 */ |
---|
83 | __sp_irq = __gba_iwram_end - 0x0060; /* 0x03007FA0 */ |
---|
84 | __sp_usr = __sp_irq - __sp_irq_size; /* 0x03007D00 */ |
---|
85 | __sp_limit = __sp_usr - _stack_size; /* 0x03007300 */ |
---|
86 | __heap_limit = DEFINED(__gba_multiboot) ? __gba_ewram_end : ( DEFINED(__gba_iwram_bss) ? __sp_limit : __gba_ewram_end ) ; |
---|
87 | |
---|
88 | |
---|
89 | SECTIONS |
---|
90 | { |
---|
91 | /*** read-only sections ***/ |
---|
92 | /************************************************************************* |
---|
93 | if 'multiboot' allocate prog in __gba_ewram_start (0x02000000-0x0207FFFF) |
---|
94 | else allocate prog in __gba_rom_start (0x08000000-0x0DFFFFFF) |
---|
95 | *************************************************************************/ |
---|
96 | __ro_start = DEFINED(__gba_multiboot) ? __gba_ewram_start : __gba_rom_start ; |
---|
97 | PROVIDE(__text_start__ = __ro_start ); |
---|
98 | .text __ro_start : |
---|
99 | { |
---|
100 | CREATE_OBJECT_SYMBOLS |
---|
101 | */start.o(.text) |
---|
102 | *(EXCLUDE_FILE(*.rodata.* *.ewram.o *.iwram.o) .text) |
---|
103 | *(.stub .text.* .gnu.linkonce.t*) |
---|
104 | |
---|
105 | /* |
---|
106 | * Special FreeBSD sysctl sections. |
---|
107 | */ |
---|
108 | . = ALIGN (16); |
---|
109 | __start_set_sysctl_set = .; |
---|
110 | *(set_sysctl_*); |
---|
111 | __stop_set_sysctl_set = ABSOLUTE(.); |
---|
112 | *(set_domain_*); |
---|
113 | *(set_pseudo_*); |
---|
114 | |
---|
115 | /* .gnu.warning sections are handled specially by elf32.em. */ |
---|
116 | *(.gnu.warning) |
---|
117 | *(.glue_7) |
---|
118 | *(.glue_7t) |
---|
119 | . = ALIGN(4); |
---|
120 | } =0xFF |
---|
121 | |
---|
122 | .init : |
---|
123 | { |
---|
124 | *(.init) |
---|
125 | . = ALIGN(4); |
---|
126 | } =0xFF |
---|
127 | |
---|
128 | .fini : |
---|
129 | { |
---|
130 | *(.fini) |
---|
131 | . = ALIGN(4); |
---|
132 | } =0xFF |
---|
133 | |
---|
134 | __rodata_start = . ; |
---|
135 | .rodata : |
---|
136 | { |
---|
137 | *(.rodata1) |
---|
138 | *(EXCLUDE_FILE(*.rodata.* *.ewram.o *.iwram.o) .rodata) |
---|
139 | *(.rodata.* .gnu.linkonce.r*) |
---|
140 | *(.roda) /* deprecated: for compatibility with objcopyroda */ |
---|
141 | SORT(CONSTRUCTORS) |
---|
142 | . = ALIGN(4); |
---|
143 | } =0xFF |
---|
144 | __rodata_end = . ; |
---|
145 | |
---|
146 | .eh_frame : |
---|
147 | { |
---|
148 | KEEP(*(.eh_frame)) |
---|
149 | . = ALIGN(4); |
---|
150 | } =0xFF |
---|
151 | |
---|
152 | .gcc_except_table : |
---|
153 | { |
---|
154 | *(.gcc_except_table*) |
---|
155 | . = ALIGN(4); |
---|
156 | } =0xFF |
---|
157 | |
---|
158 | .ctors : |
---|
159 | { |
---|
160 | /* gcc uses crtbegin.o to find the start of |
---|
161 | the constructors, so we make sure it is first. |
---|
162 | Because this is a wildcard, it doesn't matter |
---|
163 | if the user does not actually link against crtbegin.o; |
---|
164 | the linker won't look for a file to match a wildcard. |
---|
165 | The wildcard also means that it doesn't matter which |
---|
166 | directory crtbegin.o is in. |
---|
167 | */ |
---|
168 | KEEP(*crtbegin.o(.ctors)) |
---|
169 | /* We don't want to include the .ctor section from |
---|
170 | the crtend.o file until after the sorted ctors. |
---|
171 | The .ctor section from the crtend file contains the |
---|
172 | end of ctors marker and it must be last |
---|
173 | */ |
---|
174 | KEEP(*(EXCLUDE_FILE (*crtend.o) .ctors)) |
---|
175 | KEEP(*(SORT(.ctors.*))) |
---|
176 | KEEP(*(.ctors)) |
---|
177 | . = ALIGN(4); |
---|
178 | } =0xFF |
---|
179 | |
---|
180 | .dtors : |
---|
181 | { |
---|
182 | KEEP(*crtbegin.o(.dtors)) |
---|
183 | KEEP(*(EXCLUDE_FILE (*crtend.o ) .dtors)) |
---|
184 | KEEP(*(SORT(.dtors.*))) |
---|
185 | KEEP(*(.dtors)) |
---|
186 | . = ALIGN(4); |
---|
187 | } =0xFF |
---|
188 | |
---|
189 | .jcr : |
---|
190 | { |
---|
191 | *(.jcr) |
---|
192 | . = ALIGN(4); |
---|
193 | } =0xFF |
---|
194 | |
---|
195 | .ARM.extab : { |
---|
196 | *(.ARM.extab* .gnu.linkonce.armextab.*) |
---|
197 | } =0xff |
---|
198 | __exidx_start = .; |
---|
199 | .ARM.exidx : { |
---|
200 | *(.ARM.exidx* .gnu.linkonce.armexidx.*) |
---|
201 | } =0xff |
---|
202 | __exidx_end = .; |
---|
203 | .preinit_array : { |
---|
204 | PROVIDE_HIDDEN (__preinit_array_start = .); |
---|
205 | KEEP (*(.preinit_array)) |
---|
206 | PROVIDE_HIDDEN (__preinit_array_end = .); |
---|
207 | } =0xFF |
---|
208 | .init_array : { |
---|
209 | PROVIDE_HIDDEN (__init_array_start = .); |
---|
210 | KEEP (*(SORT(.init_array.*))) |
---|
211 | KEEP (*(.init_array)) |
---|
212 | PROVIDE_HIDDEN (__init_array_end = .); |
---|
213 | } =0xFF |
---|
214 | .fini_array : { |
---|
215 | PROVIDE_HIDDEN (__fini_array_start = .); |
---|
216 | KEEP (*(.fini_array)) |
---|
217 | KEEP (*(SORT(.fini_array.*))) |
---|
218 | PROVIDE_HIDDEN (__fini_array_end = .); |
---|
219 | } =0xFF |
---|
220 | |
---|
221 | /************************************************************************* |
---|
222 | calculate __ro_end |
---|
223 | *************************************************************************/ |
---|
224 | __ro_end = |
---|
225 | ADDR(.text) + |
---|
226 | SIZEOF(.text) + |
---|
227 | SIZEOF(.init) + |
---|
228 | SIZEOF(.fini) + |
---|
229 | SIZEOF(.rodata) + |
---|
230 | SIZEOF(.eh_frame) + |
---|
231 | SIZEOF(.gcc_except_table) + |
---|
232 | SIZEOF(.ctors) + |
---|
233 | SIZEOF(.dtors) + |
---|
234 | SIZEOF(.jcr) + |
---|
235 | SIZEOF(.ARM.extab) + |
---|
236 | SIZEOF(.ARM.exidx) + |
---|
237 | SIZEOF(.preinit_array) + |
---|
238 | SIZEOF(.init_array) + |
---|
239 | SIZEOF(.fini_array); |
---|
240 | PROVIDE(__text_end__ = __ro_end ); |
---|
241 | |
---|
242 | /*** IWRAM ***/ |
---|
243 | /************************************************************************* |
---|
244 | allocate iwram in __gba_iwram_start (0x03000000-0x03003FFF) |
---|
245 | *************************************************************************/ |
---|
246 | __load_start_iwram = __ro_end; |
---|
247 | . = __gba_iwram_start ; |
---|
248 | __iwram_start = . ; |
---|
249 | PROVIDE(__iwram_start__ = . ); |
---|
250 | .iwram : AT(__load_start_iwram) |
---|
251 | { |
---|
252 | /* put irq_vector_table in stat of iwram */ |
---|
253 | CREATE_OBJECT_SYMBOLS |
---|
254 | _irq_vector_table = .; |
---|
255 | PROVIDE(irq_vector_table = .); |
---|
256 | . += 4; |
---|
257 | . = ALIGN(16 * 4); |
---|
258 | PROVIDE(irq_vector_table_end = .); |
---|
259 | _irq_vector_table_end = .; |
---|
260 | *(.iwram .iwram.*) |
---|
261 | *.iwram.o (.text .rodata .data) |
---|
262 | . = ALIGN(4); |
---|
263 | } =0xFF |
---|
264 | __iwram_end = . ; |
---|
265 | PROVIDE(__iwram_end__ = . ); |
---|
266 | __load_stop_iwram = __load_start_iwram + SIZEOF(.iwram); |
---|
267 | |
---|
268 | _irq_vector_table_size = _irq_vector_table_end - _irq_vector_table; |
---|
269 | PROVIDE(_irq_max_vector = _irq_vector_table_size / 4 ); |
---|
270 | |
---|
271 | |
---|
272 | /*** EWRAM ***/ |
---|
273 | /************************************************************************* |
---|
274 | if 'multiboot' allocate prog+ewram in __gba_ewram |
---|
275 | else allocate only ewram in __gba_ewram_start |
---|
276 | *************************************************************************/ |
---|
277 | . = DEFINED(__gba_multiboot) ? __load_stop_iwram : __gba_ewram_start ; |
---|
278 | __load_start_ewram = __load_stop_iwram; |
---|
279 | __ewram_start = . ; |
---|
280 | PROVIDE(__ewram_start__ = . ); |
---|
281 | .ewram : AT(__load_start_ewram) |
---|
282 | { |
---|
283 | *(.ewram .ewram.*) |
---|
284 | *.ewram.o (.text .rodata .data) |
---|
285 | . = ALIGN(4); |
---|
286 | } =0xFF |
---|
287 | __ewram_end = . ; |
---|
288 | PROVIDE(__ewram_end__ = . ); |
---|
289 | __load_stop_ewram = __load_start_ewram + SIZEOF(.ewram) ; |
---|
290 | |
---|
291 | /************************************************************************* |
---|
292 | if 'multiboot' allocate prog+ewram+data+bss in __gba_ewram |
---|
293 | else if 'iwram_data' allocate data in __gba_iwram |
---|
294 | else allocate data in __gba_ewram |
---|
295 | *************************************************************************/ |
---|
296 | . = DEFINED(__gba_multiboot) ? __load_stop_ewram : (DEFINED(__gba_iwram_data) ? __iwram_end : __ewram_end) ; |
---|
297 | __load_start_data = __load_stop_ewram; |
---|
298 | __data_start = . ; |
---|
299 | PROVIDE(__data_start__ = . ); |
---|
300 | .data : AT(__load_start_data) |
---|
301 | { |
---|
302 | *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) |
---|
303 | *(EXCLUDE_FILE(*.rodata.* *.ewram.o *.iwram.o) .data) |
---|
304 | *(.data.* .gnu.linkonce.d.*) |
---|
305 | *(.data1) |
---|
306 | *(.tdata .tdata.* .gnu.linkonce.td.*) |
---|
307 | *(.sdata .sdata.* .gnu.linkonce.s.*) |
---|
308 | . = ALIGN(4); |
---|
309 | } =0xFF |
---|
310 | __data_end = . ; |
---|
311 | PROVIDE(__data_end__ = . ); |
---|
312 | __load_stop_data = __load_start_data + SIZEOF(.data); |
---|
313 | |
---|
314 | /*** BSS ***/ |
---|
315 | /************************************************************************* |
---|
316 | if 'multiboot' allocate prog+ewram+data+bss in __gba_ewram |
---|
317 | else if 'iwram_data' and 'iwram_bss' allocate iwram+data+bss in __gba_iwram |
---|
318 | else if !'iwram_data' and 'iwram_bss' allocate iwram+bss in __gba_iwram |
---|
319 | else allocate data+ewram+bss in __gba_ewram |
---|
320 | *************************************************************************/ |
---|
321 | . = DEFINED(__gba_multiboot) ? __load_stop_data : ( DEFINED(__gba_iwram_data) ? (DEFINED(__gba_iwram_bss) ? __data_end : __ewram_end) : (DEFINED(__gba_iwram_bss) ? __iwram_end : __data_end) ) ; |
---|
322 | __bss_start = . ; |
---|
323 | PROVIDE(__bss_start__ = . ); |
---|
324 | .bss : |
---|
325 | { |
---|
326 | *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) |
---|
327 | *(.tbss .tbss.* .gnu.linkonce.tb.*) |
---|
328 | *(.tcommon) |
---|
329 | *(.sbss .sbss.* .gnu.linkonce.sb.*) |
---|
330 | *(.scommon) |
---|
331 | *(.bss .bss.* .gnu.linkonce.b*) |
---|
332 | *(COMMON) |
---|
333 | . = ALIGN(4); |
---|
334 | } |
---|
335 | __bss_end = . ; |
---|
336 | PROVIDE(__bss_end__ = . ); |
---|
337 | PROVIDE(_bss_end__ = . ); |
---|
338 | |
---|
339 | PROVIDE(_end = . ); |
---|
340 | PROVIDE(__end__ = _end); |
---|
341 | PROVIDE(end = _end); |
---|
342 | |
---|
343 | |
---|
344 | /*** debugging info ***/ |
---|
345 | /* Stabs debugging sections. */ |
---|
346 | .stab 0 : { *(.stab) } |
---|
347 | .stabstr 0 : { *(.stabstr) } |
---|
348 | .stab.excl 0 : { *(.stab.excl) } |
---|
349 | .stab.exclstr 0 : { *(.stab.exclstr) } |
---|
350 | .stab.index 0 : { *(.stab.index) } |
---|
351 | .stab.indexstr 0 : { *(.stab.indexstr) } |
---|
352 | /* DWARF debug sections. |
---|
353 | Symbols in the DWARF debugging sections are relative to the beginning |
---|
354 | of the section so we begin them at 0. */ |
---|
355 | /* DWARF 1 */ |
---|
356 | .debug 0 : { *(.debug) } |
---|
357 | .line 0 : { *(.line) } |
---|
358 | /* GNU DWARF 1 extensions */ |
---|
359 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
---|
360 | .debug_sfnames 0 : { *(.debug_sfnames) } |
---|
361 | /* DWARF 1.1 and DWARF 2 */ |
---|
362 | .debug_aranges 0 : { *(.debug_aranges) } |
---|
363 | .debug_pubnames 0 : { *(.debug_pubnames) } |
---|
364 | /* DWARF 2 */ |
---|
365 | .debug_info 0 : { *(.debug_info) } |
---|
366 | .debug_abbrev 0 : { *(.debug_abbrev) } |
---|
367 | .debug_line 0 : { *(.debug_line) } |
---|
368 | .debug_frame 0 : { *(.debug_frame) } |
---|
369 | .debug_str 0 : { *(.debug_str) } |
---|
370 | .debug_loc 0 : { *(.debug_loc) } |
---|
371 | .debug_macinfo 0 : { *(.debug_macinfo) } |
---|
372 | .comment 0 : { *(.comment) } |
---|
373 | /* SGI/MIPS DWARF 2 extensions */ |
---|
374 | .debug_weaknames 0 : { *(.debug_weaknames) } |
---|
375 | .debug_funcnames 0 : { *(.debug_funcnames) } |
---|
376 | .debug_typenames 0 : { *(.debug_typenames) } |
---|
377 | .debug_varnames 0 : { *(.debug_varnames) } |
---|
378 | /* DWARF 3 */ |
---|
379 | .debug_pubtypes 0 : { *(.debug_pubtypes) } |
---|
380 | .debug_ranges 0 : { *(.debug_ranges) } |
---|
381 | .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) } |
---|
382 | .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) } |
---|
383 | /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) } |
---|
384 | } |
---|
385 | /* @endcond */ |
---|