crt1.S revision 1.1 1 /* Copyright (C) 2000-2013 Free Software Foundation, Inc.
2 This file was pretty much copied from newlib.
3
4 This file is part of GCC.
5
6 GCC is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 3, or (at your option) any
9 later version.
10
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 Under Section 7 of GPL version 3, you are granted additional
17 permissions described in the GCC Runtime Library Exception, version
18 3.1, as published by the Free Software Foundation.
19
20 You should have received a copy of the GNU General Public License and
21 a copy of the GCC Runtime Library Exception along with this program;
22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 <http://www.gnu.org/licenses/>. */
24
25
26 #ifdef MMU_SUPPORT
27 /* Section used for exception/timer interrupt stack area */
28 .section .data.vbr.stack,"aw"
29 .align 4
30 .global __ST_VBR
31 __ST_VBR:
32 .zero 1024 * 2 /* ; 2k for VBR handlers */
33 /* Label at the highest stack address where the stack grows from */
34 __timer_stack:
35 #endif /* MMU_SUPPORT */
36
37 /* ;----------------------------------------
38 Normal newlib crt1.S */
39
40 #ifdef __SH5__
41 .section .data,"aw"
42 .global ___data
43 ___data:
44
45 .section .rodata,"a"
46 .global ___rodata
47 ___rodata:
48
49 #define ICCR_BASE 0x01600000
50 #define OCCR_BASE 0x01e00000
51 #define MMUIR_BASE 0x00000000
52 #define MMUDR_BASE 0x00800000
53
54 #define PTE_ENABLED 1
55 #define PTE_DISABLED 0
56
57 #define PTE_SHARED (1 << 1)
58 #define PTE_NOT_SHARED 0
59
60 #define PTE_CB_UNCACHEABLE 0
61 #define PTE_CB_DEVICE 1
62 #define PTE_CB_CACHEABLE_WB 2
63 #define PTE_CB_CACHEABLE_WT 3
64
65 #define PTE_SZ_4KB (0 << 3)
66 #define PTE_SZ_64KB (1 << 3)
67 #define PTE_SZ_1MB (2 << 3)
68 #define PTE_SZ_512MB (3 << 3)
69
70 #define PTE_PRR (1 << 6)
71 #define PTE_PRX (1 << 7)
72 #define PTE_PRW (1 << 8)
73 #define PTE_PRU (1 << 9)
74
75 #define SR_MMU_BIT 31
76 #define SR_BL_BIT 28
77
78 #define ALIGN_4KB (0xfff)
79 #define ALIGN_1MB (0xfffff)
80 #define ALIGN_512MB (0x1fffffff)
81
82 #define DYNACON_BASE 0x0f000000
83 #define DM_CB_DLINK_BASE 0x0c000000
84 #define DM_DB_DLINK_BASE 0x0b000000
85
86 #define FEMI_AREA_0 0x00000000
87 #define FEMI_AREA_1 0x04000000
88 #define FEMI_AREA_2 0x05000000
89 #define FEMI_AREA_3 0x06000000
90 #define FEMI_AREA_4 0x07000000
91 #define FEMI_CB 0x08000000
92
93 #define EMI_BASE 0X80000000
94
95 #define DMA_BASE 0X0e000000
96
97 #define CPU_BASE 0X0d000000
98
99 #define PERIPH_BASE 0X09000000
100 #define DMAC_BASE 0x0e000000
101 #define INTC_BASE 0x0a000000
102 #define CPRC_BASE 0x0a010000
103 #define TMU_BASE 0x0a020000
104 #define SCIF_BASE 0x0a030000
105 #define RTC_BASE 0x0a040000
106
107
108
109 #define LOAD_CONST32(val, reg) \
110 movi ((val) >> 16) & 65535, reg; \
111 shori (val) & 65535, reg
112
113 #define LOAD_PTEH_VAL(sym, align, bits, scratch_reg, reg) \
114 LOAD_ADDR (sym, reg); \
115 LOAD_CONST32 ((align), scratch_reg); \
116 andc reg, scratch_reg, reg; \
117 LOAD_CONST32 ((bits), scratch_reg); \
118 or reg, scratch_reg, reg
119
120 #define LOAD_PTEL_VAL(sym, align, bits, scratch_reg, reg) \
121 LOAD_ADDR (sym, reg); \
122 LOAD_CONST32 ((align), scratch_reg); \
123 andc reg, scratch_reg, reg; \
124 LOAD_CONST32 ((bits), scratch_reg); \
125 or reg, scratch_reg, reg
126
127 #define SET_PTE(pte_addr_reg, pteh_val_reg, ptel_val_reg) \
128 putcfg pte_addr_reg, 0, r63; \
129 putcfg pte_addr_reg, 1, ptel_val_reg; \
130 putcfg pte_addr_reg, 0, pteh_val_reg
131
132 #if __SH5__ == 64
133 .section .text,"ax"
134 #define LOAD_ADDR(sym, reg) \
135 movi (sym >> 48) & 65535, reg; \
136 shori (sym >> 32) & 65535, reg; \
137 shori (sym >> 16) & 65535, reg; \
138 shori sym & 65535, reg
139 #else
140 .mode SHmedia
141 .section .text..SHmedia32,"ax"
142 #define LOAD_ADDR(sym, reg) \
143 movi (sym >> 16) & 65535, reg; \
144 shori sym & 65535, reg
145 #endif
146 .global start
147 start:
148 LOAD_ADDR (_stack, r15)
149
150 #ifdef MMU_SUPPORT
151 ! Set up the VM using the MMU and caches
152
153 ! .vm_ep is first instruction to execute
154 ! after VM initialization
155 pt/l .vm_ep, tr1
156
157 ! Configure instruction cache (ICCR)
158 movi 3, r2
159 movi 0, r3
160 LOAD_ADDR (ICCR_BASE, r1)
161 putcfg r1, 0, r2
162 putcfg r1, 1, r3
163
164 ! movi 7, r2 ! write through
165 ! Configure operand cache (OCCR)
166 LOAD_ADDR (OCCR_BASE, r1)
167 putcfg r1, 0, r2
168 putcfg r1, 1, r3
169
170 ! Disable all PTE translations
171 LOAD_ADDR (MMUIR_BASE, r1)
172 LOAD_ADDR (MMUDR_BASE, r2)
173 movi 64, r3
174 pt/l .disable_ptes_loop, tr0
175 .disable_ptes_loop:
176 putcfg r1, 0, r63
177 putcfg r2, 0, r63
178 addi r1, 16, r1
179 addi r2, 16, r2
180 addi r3, -1, r3
181 bgt r3, r63, tr0
182
183 LOAD_ADDR (MMUIR_BASE, r1)
184
185 ! FEMI instruction mappings
186 ! Area 0 - 1Mb cacheable at 0x00000000
187 ! Area 1 - None
188 ! Area 2 - 1Mb cacheable at 0x05000000
189 ! - 1Mb cacheable at 0x05100000
190 ! Area 3 - None
191 ! Area 4 - None
192
193 ! Map a 1Mb page for instructions at 0x00000000
194 LOAD_PTEH_VAL (FEMI_AREA_0, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
195 LOAD_PTEL_VAL (FEMI_AREA_0, ALIGN_1MB, PTE_CB_CACHEABLE_WB | PTE_SZ_1MB | PTE_PRX | PTE_PRU, r25, r3)
196 SET_PTE (r1, r2, r3)
197
198 ! Map a 1Mb page for instructions at 0x05000000
199 addi r1, 16, r1
200 LOAD_PTEH_VAL (FEMI_AREA_2, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
201 LOAD_PTEL_VAL (FEMI_AREA_2, ALIGN_1MB, PTE_CB_CACHEABLE_WB | PTE_SZ_1MB | PTE_PRX | PTE_PRU, r25, r3)
202 SET_PTE (r1, r2, r3)
203
204 ! Map a 1Mb page for instructions at 0x05100000
205 addi r1, 16, r1
206 LOAD_PTEH_VAL ((FEMI_AREA_2+0x100000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
207 LOAD_PTEL_VAL ((FEMI_AREA_2+0x100000), ALIGN_1MB, PTE_CB_CACHEABLE_WB | PTE_SZ_1MB | PTE_PRX | PTE_PRU, r25, r3)
208 SET_PTE (r1, r2, r3)
209
210 ! Map a 512M page for instructions at EMI base
211 addi r1, 16, r1
212 LOAD_PTEH_VAL (EMI_BASE, ALIGN_512MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
213 LOAD_PTEL_VAL (EMI_BASE, ALIGN_512MB, PTE_CB_CACHEABLE_WB | PTE_SZ_512MB | PTE_PRX | PTE_PRU, r25, r3)
214 SET_PTE (r1, r2, r3)
215
216 ! Map a 4K page for instructions at DM_DB_DLINK_BASE
217 addi r1, 16, r1
218 LOAD_PTEH_VAL (DM_DB_DLINK_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
219 LOAD_PTEL_VAL (DM_DB_DLINK_BASE, ALIGN_4KB, PTE_CB_CACHEABLE_WB | PTE_SZ_4KB | PTE_PRX | PTE_PRU, r25, r3)
220 SET_PTE (r1, r2, r3)
221
222 LOAD_ADDR (MMUDR_BASE, r1)
223
224 ! FEMI data mappings
225 ! Area 0 - 1Mb cacheable at 0x00000000
226 ! Area 1 - 1Mb device at 0x04000000
227 ! Area 2 - 1Mb cacheable at 0x05000000
228 ! - 1Mb cacheable at 0x05100000
229 ! Area 3 - None
230 ! Area 4 - None
231 ! CB - 1Mb device at 0x08000000
232
233 ! Map a 1Mb page for data at 0x00000000
234 LOAD_PTEH_VAL (FEMI_AREA_0, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
235 LOAD_PTEL_VAL (FEMI_AREA_0, ALIGN_1MB, PTE_CB_CACHEABLE_WB | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
236 SET_PTE (r1, r2, r3)
237
238 ! Map a 1Mb page for data at 0x04000000
239 addi r1, 16, r1
240 LOAD_PTEH_VAL (FEMI_AREA_1, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
241 LOAD_PTEL_VAL (FEMI_AREA_1, ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
242 SET_PTE (r1, r2, r3)
243
244 ! Map a 1Mb page for data at 0x05000000
245 addi r1, 16, r1
246 LOAD_PTEH_VAL (FEMI_AREA_2, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
247 LOAD_PTEL_VAL (FEMI_AREA_2, ALIGN_1MB, PTE_CB_CACHEABLE_WB | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
248 SET_PTE (r1, r2, r3)
249
250 ! Map a 1Mb page for data at 0x05100000
251 addi r1, 16, r1
252 LOAD_PTEH_VAL ((FEMI_AREA_2+0x100000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
253 LOAD_PTEL_VAL ((FEMI_AREA_2+0x100000), ALIGN_1MB, PTE_CB_CACHEABLE_WB | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
254 SET_PTE (r1, r2, r3)
255
256 ! Map a 4K page for registers at 0x08000000
257 addi r1, 16, r1
258 LOAD_PTEH_VAL (FEMI_CB, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
259 LOAD_PTEL_VAL (FEMI_CB, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
260 SET_PTE (r1, r2, r3)
261
262 ! Map a 512M page for data at EMI
263 addi r1, 16, r1
264 LOAD_PTEH_VAL (EMI_BASE, ALIGN_512MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
265 LOAD_PTEL_VAL (EMI_BASE, ALIGN_512MB, PTE_CB_CACHEABLE_WB | PTE_SZ_512MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
266 SET_PTE (r1, r2, r3)
267
268 ! Map a 4K page for DYNACON at DYNACON_BASE
269 addi r1, 16, r1
270 LOAD_PTEH_VAL (DYNACON_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
271 LOAD_PTEL_VAL (DYNACON_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
272 SET_PTE (r1, r2, r3)
273
274 ! Map a 4K page for instructions at DM_DB_DLINK_BASE
275 addi r1, 16, r1
276 LOAD_PTEH_VAL (DM_DB_DLINK_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
277 LOAD_PTEL_VAL (DM_DB_DLINK_BASE, ALIGN_4KB, PTE_CB_CACHEABLE_WB | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
278 SET_PTE (r1, r2, r3)
279
280 ! Map a 4K page for data at DM_DB_DLINK_BASE+0x1000
281 addi r1, 16, r1
282 LOAD_PTEH_VAL ((DM_DB_DLINK_BASE+0x1000), ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
283 LOAD_PTEL_VAL ((DM_DB_DLINK_BASE+0x1000), ALIGN_4KB, PTE_CB_UNCACHEABLE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
284 SET_PTE (r1, r2, r3)
285
286 ! Map a 4K page for stack DM_DB_DLINK_BASE+0x2000
287 addi r1, 16, r1
288 LOAD_PTEH_VAL ((DM_DB_DLINK_BASE+0x2000), ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
289 LOAD_PTEL_VAL ((DM_DB_DLINK_BASE+0x2000), ALIGN_4KB, PTE_CB_CACHEABLE_WB | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
290 SET_PTE (r1, r2, r3)
291
292 ! Map a 1M page for DM_CB_BASE2 at DM_CB_DLINK
293 ! 0x0c000000 - 0x0c0fffff
294 addi r1, 16, r1
295 LOAD_PTEH_VAL (DM_CB_DLINK_BASE, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
296 LOAD_PTEL_VAL (DM_CB_DLINK_BASE, ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
297 SET_PTE (r1, r2, r3)
298
299 ! Map a 1M page for DM_CB_BASE2 at DM_CB_DLINK
300 ! 0x0c100000 - 0x0c1fffff
301 addi r1, 16, r1
302 LOAD_PTEH_VAL ((DM_CB_DLINK_BASE+0x100000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
303 LOAD_PTEL_VAL ((DM_CB_DLINK_BASE+0x100000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
304 SET_PTE (r1, r2, r3)
305
306 ! Map a 1M page for DM_CB_BASE2 at DM_CB_DLINK
307 ! 0x0c200000 - 0x0c2fffff
308 addi r1, 16, r1
309 LOAD_PTEH_VAL ((DM_CB_DLINK_BASE+0x200000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
310 LOAD_PTEL_VAL ((DM_CB_DLINK_BASE+0x200000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
311 SET_PTE (r1, r2, r3)
312
313 ! Map a 1M page for DM_CB_BASE2 at DM_CB_DLINK
314 ! 0x0c400000 - 0x0c4fffff
315 addi r1, 16, r1
316 LOAD_PTEH_VAL ((DM_CB_DLINK_BASE+0x400000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
317 LOAD_PTEL_VAL ((DM_CB_DLINK_BASE+0x400000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
318 SET_PTE (r1, r2, r3)
319
320 ! Map a 1M page for DM_CB_BASE2 at DM_CB_DLINK
321 ! 0x0c800000 - 0x0c8fffff
322 addi r1, 16, r1
323 LOAD_PTEH_VAL ((DM_CB_DLINK_BASE+0x800000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
324 LOAD_PTEL_VAL ((DM_CB_DLINK_BASE+0x800000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
325 SET_PTE (r1, r2, r3)
326
327 ! Map a 4K page for DMA control registers
328 addi r1, 16, r1
329 LOAD_PTEH_VAL (DMA_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
330 LOAD_PTEL_VAL (DMA_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
331 SET_PTE (r1, r2, r3)
332
333 ! Map lots of 4K pages for peripherals
334
335 ! /* peripheral */
336 addi r1, 16, r1
337 LOAD_PTEH_VAL (PERIPH_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
338 LOAD_PTEL_VAL (PERIPH_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
339 SET_PTE (r1, r2, r3)
340 ! /* dmac */
341 addi r1, 16, r1
342 LOAD_PTEH_VAL (DMAC_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
343 LOAD_PTEL_VAL (DMAC_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
344 SET_PTE (r1, r2, r3)
345 ! /* intc */
346 addi r1, 16, r1
347 LOAD_PTEH_VAL (INTC_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
348 LOAD_PTEL_VAL (INTC_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
349 SET_PTE (r1, r2, r3)
350 ! /* rtc */
351 addi r1, 16, r1
352 LOAD_PTEH_VAL (RTC_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
353 LOAD_PTEL_VAL (RTC_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
354 SET_PTE (r1, r2, r3)
355 ! /* dmac */
356 addi r1, 16, r1
357 LOAD_PTEH_VAL (TMU_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
358 LOAD_PTEL_VAL (TMU_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
359 SET_PTE (r1, r2, r3)
360 ! /* scif */
361 addi r1, 16, r1
362 LOAD_PTEH_VAL (SCIF_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
363 LOAD_PTEL_VAL (SCIF_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
364 SET_PTE (r1, r2, r3)
365 ! /* cprc */
366 addi r1, 16, r1
367 LOAD_PTEH_VAL (CPRC_BASE, ALIGN_4KB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
368 LOAD_PTEL_VAL (CPRC_BASE, ALIGN_4KB, PTE_CB_DEVICE | PTE_SZ_4KB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
369 SET_PTE (r1, r2, r3)
370
371 ! Map CPU WPC registers
372 addi r1, 16, r1
373 LOAD_PTEH_VAL (CPU_BASE, ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
374 LOAD_PTEL_VAL (CPU_BASE, ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
375 SET_PTE (r1, r2, r3)
376 addi r1, 16, r1
377
378 LOAD_PTEH_VAL ((CPU_BASE+0x100000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
379 LOAD_PTEL_VAL ((CPU_BASE+0x100000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
380 SET_PTE (r1, r2, r3)
381
382 addi r1, 16, r1
383 LOAD_PTEH_VAL ((CPU_BASE+0x200000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
384 LOAD_PTEL_VAL ((CPU_BASE+0x200000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
385 SET_PTE (r1, r2, r3)
386
387 addi r1, 16, r1
388 LOAD_PTEH_VAL ((CPU_BASE+0x400000), ALIGN_1MB, PTE_ENABLED | PTE_NOT_SHARED, r25, r2)
389 LOAD_PTEL_VAL ((CPU_BASE+0x400000), ALIGN_1MB, PTE_CB_DEVICE | PTE_SZ_1MB | PTE_PRR | PTE_PRW | PTE_PRU, r25, r3)
390 SET_PTE (r1, r2, r3)
391
392 ! Switch over to virtual addressing and enabled cache
393 getcon sr, r1
394 movi 1, r2
395 shlli r2, SR_BL_BIT, r2
396 or r1, r2, r1
397 putcon r1, ssr
398 getcon sr, r1
399 movi 1, r2
400 shlli r2, SR_MMU_BIT, r2
401 or r1, r2, r1
402 putcon r1, ssr
403 gettr tr1, r1
404 putcon r1, spc
405 synco
406 rte
407
408 ! VM entry point. From now on, we are in VM mode.
409 .vm_ep:
410
411 ! Install the trap handler, by seeding vbr with the
412 ! correct value, and by assigning sr.bl = 0.
413
414 LOAD_ADDR (vbr_start, r1)
415 putcon r1, vbr
416 movi ~(1<<28), r1
417 getcon sr, r2
418 and r1, r2, r2
419 putcon r2, sr
420 #endif /* MMU_SUPPORT */
421
422 pt/l .Lzero_bss_loop, tr0
423 pt/l _init, tr5
424 pt/l ___setup_argv_and_call_main, tr6
425 pt/l _exit, tr7
426
427 ! zero out bss
428 LOAD_ADDR (_edata, r0)
429 LOAD_ADDR (_end, r1)
430 .Lzero_bss_loop:
431 stx.q r0, r63, r63
432 addi r0, 8, r0
433 bgt/l r1, r0, tr0
434
435 LOAD_ADDR (___data, r26)
436 LOAD_ADDR (___rodata, r27)
437
438 #ifdef __SH_FPU_ANY__
439 getcon sr, r0
440 ! enable the FP unit, by resetting SR.FD
441 ! also zero out SR.FR, SR.SZ and SR.PR, as mandated by the ABI
442 movi 0, r1
443 shori 0xf000, r1
444 andc r0, r1, r0
445 putcon r0, sr
446 #if __SH5__ == 32
447 pt/l ___set_fpscr, tr0
448 movi 0, r4
449 blink tr0, r18
450 #endif
451 #endif
452
453 ! arrange for exit to call fini
454 pt/l _atexit, tr1
455 LOAD_ADDR (_fini, r2)
456 blink tr1, r18
457
458 ! call init
459 blink tr5, r18
460
461 ! call the mainline
462 blink tr6, r18
463
464 ! call exit
465 blink tr7, r18
466 ! We should never return from _exit but in case we do we would enter the
467 ! the following tight loop. This avoids executing any data that might follow.
468 limbo:
469 pt/l limbo, tr0
470 blink tr0, r63
471
472 #ifdef MMU_SUPPORT
473 ! All these traps are handled in the same place.
474 .balign 256
475 vbr_start:
476 pt/l handler, tr0 ! tr0 trashed.
477 blink tr0, r63
478 .balign 256
479 vbr_100:
480 pt/l handler, tr0 ! tr0 trashed.
481 blink tr0, r63
482 vbr_100_end:
483 .balign 256
484 vbr_200:
485 pt/l handler, tr0 ! tr0 trashed.
486 blink tr0, r63
487 .balign 256
488 vbr_300:
489 pt/l handler, tr0 ! tr0 trashed.
490 blink tr0, r63
491 .balign 256
492 vbr_400: ! Should be at vbr+0x400
493 handler:
494 /* If the trap handler is there call it */
495 LOAD_ADDR (__superh_trap_handler, r2)
496 pta chandler,tr2
497 beq r2, r63, tr2 /* If zero, ie not present branch around to chandler */
498 /* Now call the trap handler with as much of the context unchanged as possible.
499 Move trapping address into R18 to make it look like the trap point */
500 getcon spc, r18
501 pt/l __superh_trap_handler, tr0
502 blink tr0, r7
503 chandler:
504 getcon spc, r62
505 getcon expevt, r2
506 pt/l _exit, tr0
507 blink tr0, r63
508
509 /* Simulated trap handler */
510 .section .text..SHmedia32,"ax"
511 gcc2_compiled.:
512 .section .debug_abbrev
513 .Ldebug_abbrev0:
514 .section .text..SHmedia32
515 .Ltext0:
516 .section .debug_info
517 .Ldebug_info0:
518 .section .debug_line
519 .Ldebug_line0:
520 .section .text..SHmedia32,"ax"
521 .align 5
522 .global __superh_trap_handler
523 .type __superh_trap_handler,@function
524 __superh_trap_handler:
525 .LFB1:
526 ptabs r18, tr0
527 addi.l r15, -8, r15
528 st.l r15, 4, r14
529 addi.l r15, -8, r15
530 add.l r15, r63, r14
531 st.l r14, 0, r2
532 ptabs r7, tr0
533 addi.l r14, 8, r14
534 add.l r14, r63, r15
535 ld.l r15, 4, r14
536 addi.l r15, 8, r15
537 blink tr0, r63
538 .LFE1:
539 .Lfe1:
540 .size __superh_trap_handler,.Lfe1-__superh_trap_handler
541
542 .section .text..SHmedia32
543 .Letext0:
544
545 .section .debug_info
546 .ualong 0xa7
547 .uaword 0x2
548 .ualong .Ldebug_abbrev0
549 .byte 0x4
550 .byte 0x1
551 .ualong .Ldebug_line0
552 .ualong .Letext0
553 .ualong .Ltext0
554 .string "trap_handler.c"
555
556 .string "xxxxxxxxxxxxxxxxxxxxxxxxxxxx"
557
558 .string "GNU C 2.97-sh5-010522"
559
560 .byte 0x1
561 .byte 0x2
562 .ualong 0x9a
563 .byte 0x1
564 .string "_superh_trap_handler"
565
566 .byte 0x1
567 .byte 0x2
568 .byte 0x1
569 .ualong .LFB1
570 .ualong .LFE1
571 .byte 0x1
572 .byte 0x5e
573 .byte 0x3
574 .string "trap_reason"
575
576 .byte 0x1
577 .byte 0x1
578 .ualong 0x9a
579 .byte 0x2
580 .byte 0x91
581 .byte 0x0
582 .byte 0x0
583 .byte 0x4
584 .string "unsigned int"
585
586 .byte 0x4
587 .byte 0x7
588 .byte 0x0
589
590 .section .debug_abbrev
591 .byte 0x1
592 .byte 0x11
593 .byte 0x1
594 .byte 0x10
595 .byte 0x6
596 .byte 0x12
597 .byte 0x1
598 .byte 0x11
599 .byte 0x1
600 .byte 0x3
601 .byte 0x8
602 .byte 0x1b
603 .byte 0x8
604 .byte 0x25
605 .byte 0x8
606 .byte 0x13
607 .byte 0xb
608 .byte 0,0
609 .byte 0x2
610 .byte 0x2e
611 .byte 0x1
612 .byte 0x1
613 .byte 0x13
614 .byte 0x3f
615 .byte 0xc
616 .byte 0x3
617 .byte 0x8
618 .byte 0x3a
619 .byte 0xb
620 .byte 0x3b
621 .byte 0xb
622 .byte 0x27
623 .byte 0xc
624 .byte 0x11
625 .byte 0x1
626 .byte 0x12
627 .byte 0x1
628 .byte 0x40
629 .byte 0xa
630 .byte 0,0
631 .byte 0x3
632 .byte 0x5
633 .byte 0x0
634 .byte 0x3
635 .byte 0x8
636 .byte 0x3a
637 .byte 0xb
638 .byte 0x3b
639 .byte 0xb
640 .byte 0x49
641 .byte 0x13
642 .byte 0x2
643 .byte 0xa
644 .byte 0,0
645 .byte 0x4
646 .byte 0x24
647 .byte 0x0
648 .byte 0x3
649 .byte 0x8
650 .byte 0xb
651 .byte 0xb
652 .byte 0x3e
653 .byte 0xb
654 .byte 0,0
655 .byte 0
656
657 .section .debug_pubnames
658 .ualong 0x27
659 .uaword 0x2
660 .ualong .Ldebug_info0
661 .ualong 0xab
662 .ualong 0x5b
663 .string "_superh_trap_handler"
664
665 .ualong 0x0
666
667 .section .debug_aranges
668 .ualong 0x1c
669 .uaword 0x2
670 .ualong .Ldebug_info0
671 .byte 0x4
672 .byte 0x0
673 .uaword 0x0,0
674 .ualong .Ltext0
675 .ualong .Letext0-.Ltext0
676 .ualong 0x0
677 .ualong 0x0
678 .ident "GCC: (GNU) 2.97-sh5-010522"
679 #endif /* MMU_SUPPORT */
680 #else /* ! __SH5__ */
681
682 ! make a place to keep any previous value of the vbr register
683 ! this will only have a value if it has been set by redboot (for example)
684 .section .bss
685 old_vbr:
686 .long 0
687 #ifdef PROFILE
688 profiling_enabled:
689 .long 0
690 #endif
691
692
693 .section .text
694 .global start
695 .import ___rtos_profiler_start_timer
696 .weak ___rtos_profiler_start_timer
697 start:
698 mov.l stack_k,r15
699
700 #if defined (__SH3__) || (defined (__SH_FPU_ANY__) && ! defined (__SH2A__)) || defined (__SH4_NOFPU__)
701 #define VBR_SETUP
702 ! before zeroing the bss ...
703 ! if the vbr is already set to vbr_start then the program has been restarted
704 ! (i.e. it is not the first time the program has been run since reset)
705 ! reset the vbr to its old value before old_vbr (in bss) is wiped
706 ! this ensures that the later code does not create a circular vbr chain
707 stc vbr, r1
708 mov.l vbr_start_k, r2
709 cmp/eq r1, r2
710 bf 0f
711 ! reset the old vbr value
712 mov.l old_vbr_k, r1
713 mov.l @r1, r2
714 ldc r2, vbr
715 0:
716 #endif /* VBR_SETUP */
717
718 ! zero out bss
719 mov.l edata_k,r0
720 mov.l end_k,r1
721 mov #0,r2
722 start_l:
723 mov.l r2,@r0
724 add #4,r0
725 cmp/ge r0,r1
726 bt start_l
727
728 #if defined (__SH_FPU_ANY__)
729 mov.l set_fpscr_k, r1
730 mov #4,r4
731 jsr @r1
732 shll16 r4 ! Set DN bit (flush denormal inputs to zero)
733 lds r3,fpscr ! Switch to default precision
734 #endif /* defined (__SH_FPU_ANY__) */
735
736 #ifdef VBR_SETUP
737 ! save the existing contents of the vbr
738 ! there will only be a prior value when using something like redboot
739 ! otherwise it will be zero
740 stc vbr, r1
741 mov.l old_vbr_k, r2
742 mov.l r1, @r2
743 ! setup vbr
744 mov.l vbr_start_k, r1
745 ldc r1,vbr
746 #endif /* VBR_SETUP */
747
748 ! if an rtos is exporting a timer start fn,
749 ! then pick up an SR which does not enable ints
750 ! (the rtos will take care of this)
751 mov.l rtos_start_fn, r0
752 mov.l sr_initial_bare, r1
753 tst r0, r0
754 bt set_sr
755
756 mov.l sr_initial_rtos, r1
757
758 set_sr:
759 ! Set status register (sr)
760 ldc r1, sr
761
762 ! arrange for exit to call fini
763 mov.l atexit_k,r0
764 mov.l fini_k,r4
765 jsr @r0
766 nop
767
768 #ifdef PROFILE
769 ! arrange for exit to call _mcleanup (via stop_profiling)
770 mova stop_profiling,r0
771 mov.l atexit_k,r1
772 jsr @r1
773 mov r0, r4
774
775 ! Call profiler startup code
776 mov.l monstartup_k, r0
777 mov.l start_k, r4
778 mov.l etext_k, r5
779 jsr @r0
780 nop
781
782 ! enable profiling trap
783 ! until now any trap 33s will have been ignored
784 ! This means that all library functions called before this point
785 ! (directly or indirectly) may have the profiling trap at the start.
786 ! Therefore, only mcount itself may not have the extra header.
787 mov.l profiling_enabled_k2, r0
788 mov #1, r1
789 mov.l r1, @r0
790 #endif /* PROFILE */
791
792 ! call init
793 mov.l init_k,r0
794 jsr @r0
795 nop
796
797 ! call the mainline
798 mov.l main_k,r0
799 jsr @r0
800 nop
801
802 ! call exit
803 mov r0,r4
804 mov.l exit_k,r0
805 jsr @r0
806 nop
807
808 .balign 4
809 #ifdef PROFILE
810 stop_profiling:
811 # stop mcount counting
812 mov.l profiling_enabled_k2, r0
813 mov #0, r1
814 mov.l r1, @r0
815
816 # call mcleanup
817 mov.l mcleanup_k, r0
818 jmp @r0
819 nop
820
821 .balign 4
822 mcleanup_k:
823 .long __mcleanup
824 monstartup_k:
825 .long ___monstartup
826 profiling_enabled_k2:
827 .long profiling_enabled
828 start_k:
829 .long _start
830 etext_k:
831 .long __etext
832 #endif /* PROFILE */
833
834 .align 2
835 #if defined (__SH_FPU_ANY__)
836 set_fpscr_k:
837 .long ___set_fpscr
838 #endif /* defined (__SH_FPU_ANY__) */
839
840 stack_k:
841 .long _stack
842 edata_k:
843 .long _edata
844 end_k:
845 .long _end
846 main_k:
847 .long ___setup_argv_and_call_main
848 exit_k:
849 .long _exit
850 atexit_k:
851 .long _atexit
852 init_k:
853 .long _init
854 fini_k:
855 .long _fini
856 #ifdef VBR_SETUP
857 old_vbr_k:
858 .long old_vbr
859 vbr_start_k:
860 .long vbr_start
861 #endif /* VBR_SETUP */
862
863 sr_initial_rtos:
864 ! Privileged mode RB 1 BL 0. Keep BL 0 to allow default trap handlers to work.
865 ! Whether profiling or not, keep interrupts masked,
866 ! the RTOS will enable these if required.
867 .long 0x600000f1
868
869 rtos_start_fn:
870 .long ___rtos_profiler_start_timer
871
872 #ifdef PROFILE
873 sr_initial_bare:
874 ! Privileged mode RB 1 BL 0. Keep BL 0 to allow default trap handlers to work.
875 ! For bare machine, we need to enable interrupts to get profiling working
876 .long 0x60000001
877 #else
878
879 sr_initial_bare:
880 ! Privileged mode RB 1 BL 0. Keep BL 0 to allow default trap handlers to work.
881 ! Keep interrupts disabled - the application will enable as required.
882 .long 0x600000f1
883 #endif
884
885 ! supplied for backward compatibility only, in case of linking
886 ! code whose main() was compiled with an older version of GCC.
887 .global ___main
888 ___main:
889 rts
890 nop
891 #ifdef VBR_SETUP
892 ! Exception handlers
893 .section .text.vbr, "ax"
894 vbr_start:
895
896 .org 0x100
897 vbr_100:
898 #ifdef PROFILE
899 ! Note on register usage.
900 ! we use r0..r3 as scratch in this code. If we are here due to a trapa for profiling
901 ! then this is OK as we are just before executing any function code.
902 ! The other r4..r7 we save explicityl on the stack
903 ! Remaining registers are saved by normal ABI conventions and we assert we do not
904 ! use floating point registers.
905 mov.l expevt_k1, r1
906 mov.l @r1, r1
907 mov.l event_mask, r0
908 and r0,r1
909 mov.l trapcode_k, r2
910 cmp/eq r1,r2
911 bt 1f
912 bra handler_100 ! if not a trapa, go to default handler
913 nop
914 1:
915 mov.l trapa_k, r0
916 mov.l @r0, r0
917 shlr2 r0 ! trapa code is shifted by 2.
918 cmp/eq #33, r0
919 bt 2f
920 bra handler_100
921 nop
922 2:
923
924 ! If here then it looks like we have trap #33
925 ! Now we need to call mcount with the following convention
926 ! Save and restore r4..r7
927 mov.l r4,@-r15
928 mov.l r5,@-r15
929 mov.l r6,@-r15
930 mov.l r7,@-r15
931 sts.l pr,@-r15
932
933 ! r4 is frompc.
934 ! r5 is selfpc
935 ! r0 is the branch back address.
936 ! The code sequence emitted by gcc for the profiling trap is
937 ! .align 2
938 ! trapa #33
939 ! .align 2
940 ! .long lab Where lab is planted by the compiler. This is the address
941 ! of a datum that needs to be incremented.
942 sts pr, r4 ! frompc
943 stc spc, r5 ! selfpc
944 mov #2, r2
945 not r2, r2 ! pattern to align to 4
946 and r2, r5 ! r5 now has aligned address
947 ! add #4, r5 ! r5 now has address of address
948 mov r5, r2 ! Remember it.
949 ! mov.l @r5, r5 ! r5 has value of lable (lab in above example)
950 add #8, r2
951 ldc r2, spc ! our return address avoiding address word
952
953 ! only call mcount if profiling is enabled
954 mov.l profiling_enabled_k, r0
955 mov.l @r0, r0
956 cmp/eq #0, r0
957 bt 3f
958 ! call mcount
959 mov.l mcount_k, r2
960 jsr @r2
961 nop
962 3:
963 lds.l @r15+,pr
964 mov.l @r15+,r7
965 mov.l @r15+,r6
966 mov.l @r15+,r5
967 mov.l @r15+,r4
968 rte
969 nop
970 .balign 4
971 event_mask:
972 .long 0xfff
973 trapcode_k:
974 .long 0x160
975 expevt_k1:
976 .long 0xff000024 ! Address of expevt
977 trapa_k:
978 .long 0xff000020
979 mcount_k:
980 .long __call_mcount
981 profiling_enabled_k:
982 .long profiling_enabled
983 #endif
984 ! Non profiling case.
985 handler_100:
986 mov.l 2f, r0 ! load the old vbr setting (if any)
987 mov.l @r0, r0
988 cmp/eq #0, r0
989 bf 1f
990 ! no previous vbr - jump to own generic handler
991 bra handler
992 nop
993 1: ! there was a previous handler - chain them
994 add #0x7f, r0 ! 0x7f
995 add #0x7f, r0 ! 0xfe
996 add #0x2, r0 ! add 0x100 without corrupting another register
997 jmp @r0
998 nop
999 .balign 4
1000 2:
1001 .long old_vbr
1002
1003 .org 0x400
1004 vbr_400: ! Should be at vbr+0x400
1005 mov.l 2f, r0 ! load the old vbr setting (if any)
1006 mov.l @r0, r0
1007 cmp/eq #0, r0
1008 ! no previous vbr - jump to own generic handler
1009 bt handler
1010 ! there was a previous handler - chain them
1011 rotcr r0
1012 rotcr r0
1013 add #0x7f, r0 ! 0x1fc
1014 add #0x7f, r0 ! 0x3f8
1015 add #0x02, r0 ! 0x400
1016 rotcl r0
1017 rotcl r0 ! Add 0x400 without corrupting another register
1018 jmp @r0
1019 nop
1020 .balign 4
1021 2:
1022 .long old_vbr
1023 handler:
1024 /* If the trap handler is there call it */
1025 mov.l superh_trap_handler_k, r0
1026 cmp/eq #0, r0 ! True if zero.
1027 bf 3f
1028 bra chandler
1029 nop
1030 3:
1031 ! Here handler available, call it.
1032 /* Now call the trap handler with as much of the context unchanged as possible.
1033 Move trapping address into PR to make it look like the trap point */
1034 stc spc, r1
1035 lds r1, pr
1036 mov.l expevt_k, r4
1037 mov.l @r4, r4 ! r4 is value of expevt, first parameter.
1038 mov r1, r5 ! Remember trapping pc.
1039 mov r1, r6 ! Remember trapping pc.
1040 mov.l chandler_k, r1
1041 mov.l superh_trap_handler_k, r2
1042 ! jmp to trap handler to avoid disturbing pr.
1043 jmp @r2
1044 nop
1045
1046 .org 0x600
1047 vbr_600:
1048 #ifdef PROFILE
1049 ! Should be at vbr+0x600
1050 ! Now we are in the land of interrupts so need to save more state.
1051 ! Save register state
1052 mov.l interrupt_stack_k, r15 ! r15 has been saved to sgr.
1053 mov.l r0,@-r15
1054 mov.l r1,@-r15
1055 mov.l r2,@-r15
1056 mov.l r3,@-r15
1057 mov.l r4,@-r15
1058 mov.l r5,@-r15
1059 mov.l r6,@-r15
1060 mov.l r7,@-r15
1061 sts.l pr,@-r15
1062 sts.l mach,@-r15
1063 sts.l macl,@-r15
1064 #if defined(__SH_FPU_ANY__)
1065 ! Save fpul and fpscr, save fr0-fr7 in 64 bit mode
1066 ! and set the pervading precision for the timer_handler
1067 mov #0,r0
1068 sts.l fpul,@-r15
1069 sts.l fpscr,@-r15
1070 lds r0,fpscr ! Clear fpscr
1071 fmov fr0,@-r15
1072 fmov fr1,@-r15
1073 fmov fr2,@-r15
1074 fmov fr3,@-r15
1075 mov.l pervading_precision_k,r0
1076 fmov fr4,@-r15
1077 fmov fr5,@-r15
1078 mov.l @r0,r0
1079 fmov fr6,@-r15
1080 fmov fr7,@-r15
1081 lds r0,fpscr
1082 #endif /* __SH_FPU_ANY__ */
1083 ! Pass interrupted pc to timer_handler as first parameter (r4).
1084 stc spc, r4
1085 mov.l timer_handler_k, r0
1086 jsr @r0
1087 nop
1088 #if defined(__SH_FPU_ANY__)
1089 mov #0,r0
1090 lds r0,fpscr ! Clear the fpscr
1091 fmov @r15+,fr7
1092 fmov @r15+,fr6
1093 fmov @r15+,fr5
1094 fmov @r15+,fr4
1095 fmov @r15+,fr3
1096 fmov @r15+,fr2
1097 fmov @r15+,fr1
1098 fmov @r15+,fr0
1099 lds.l @r15+,fpscr
1100 lds.l @r15+,fpul
1101 #endif /* __SH_FPU_ANY__ */
1102 lds.l @r15+,macl
1103 lds.l @r15+,mach
1104 lds.l @r15+,pr
1105 mov.l @r15+,r7
1106 mov.l @r15+,r6
1107 mov.l @r15+,r5
1108 mov.l @r15+,r4
1109 mov.l @r15+,r3
1110 mov.l @r15+,r2
1111 mov.l @r15+,r1
1112 mov.l @r15+,r0
1113 stc sgr, r15 ! Restore r15, destroyed by this sequence.
1114 rte
1115 nop
1116 #if defined(__SH_FPU_ANY__)
1117 .balign 4
1118 pervading_precision_k:
1119 #define CONCAT1(A,B) A##B
1120 #define CONCAT(A,B) CONCAT1(A,B)
1121 .long CONCAT(__USER_LABEL_PREFIX__,__fpscr_values)+4
1122 #endif
1123 #else
1124 mov.l 2f, r0 ! Load the old vbr setting (if any).
1125 mov.l @r0, r0
1126 cmp/eq #0, r0
1127 ! no previous vbr - jump to own handler
1128 bt chandler
1129 ! there was a previous handler - chain them
1130 rotcr r0
1131 rotcr r0
1132 add #0x7f, r0 ! 0x1fc
1133 add #0x7f, r0 ! 0x3f8
1134 add #0x7f, r0 ! 0x5f4
1135 add #0x03, r0 ! 0x600
1136 rotcl r0
1137 rotcl r0 ! Add 0x600 without corrupting another register
1138 jmp @r0
1139 nop
1140 .balign 4
1141 2:
1142 .long old_vbr
1143 #endif /* PROFILE code */
1144 chandler:
1145 mov.l expevt_k, r4
1146 mov.l @r4, r4 ! r4 is value of expevt hence making this the return code
1147 mov.l handler_exit_k,r0
1148 jsr @r0
1149 nop
1150 ! We should never return from _exit but in case we do we would enter the
1151 ! the following tight loop
1152 limbo:
1153 bra limbo
1154 nop
1155 .balign 4
1156 #ifdef PROFILE
1157 interrupt_stack_k:
1158 .long __timer_stack ! The high end of the stack
1159 timer_handler_k:
1160 .long __profil_counter
1161 #endif
1162 expevt_k:
1163 .long 0xff000024 ! Address of expevt
1164 chandler_k:
1165 .long chandler
1166 superh_trap_handler_k:
1167 .long __superh_trap_handler
1168 handler_exit_k:
1169 .long _exit
1170 .align 2
1171 ! Simulated compile of trap handler.
1172 .section .debug_abbrev,"",@progbits
1173 .Ldebug_abbrev0:
1174 .section .debug_info,"",@progbits
1175 .Ldebug_info0:
1176 .section .debug_line,"",@progbits
1177 .Ldebug_line0:
1178 .text
1179 .Ltext0:
1180 .align 5
1181 .type __superh_trap_handler,@function
1182 __superh_trap_handler:
1183 .LFB1:
1184 mov.l r14,@-r15
1185 .LCFI0:
1186 add #-4,r15
1187 .LCFI1:
1188 mov r15,r14
1189 .LCFI2:
1190 mov.l r4,@r14
1191 lds r1, pr
1192 add #4,r14
1193 mov r14,r15
1194 mov.l @r15+,r14
1195 rts
1196 nop
1197 .LFE1:
1198 .Lfe1:
1199 .size __superh_trap_handler,.Lfe1-__superh_trap_handler
1200 .section .debug_frame,"",@progbits
1201 .Lframe0:
1202 .ualong .LECIE0-.LSCIE0
1203 .LSCIE0:
1204 .ualong 0xffffffff
1205 .byte 0x1
1206 .string ""
1207 .uleb128 0x1
1208 .sleb128 -4
1209 .byte 0x11
1210 .byte 0xc
1211 .uleb128 0xf
1212 .uleb128 0x0
1213 .align 2
1214 .LECIE0:
1215 .LSFDE0:
1216 .ualong .LEFDE0-.LASFDE0
1217 .LASFDE0:
1218 .ualong .Lframe0
1219 .ualong .LFB1
1220 .ualong .LFE1-.LFB1
1221 .byte 0x4
1222 .ualong .LCFI0-.LFB1
1223 .byte 0xe
1224 .uleb128 0x4
1225 .byte 0x4
1226 .ualong .LCFI1-.LCFI0
1227 .byte 0xe
1228 .uleb128 0x8
1229 .byte 0x8e
1230 .uleb128 0x1
1231 .byte 0x4
1232 .ualong .LCFI2-.LCFI1
1233 .byte 0xd
1234 .uleb128 0xe
1235 .align 2
1236 .LEFDE0:
1237 .text
1238 .Letext0:
1239 .section .debug_info
1240 .ualong 0xb3
1241 .uaword 0x2
1242 .ualong .Ldebug_abbrev0
1243 .byte 0x4
1244 .uleb128 0x1
1245 .ualong .Ldebug_line0
1246 .ualong .Letext0
1247 .ualong .Ltext0
1248 .string "trap_handler.c"
1249 .string "xxxxxxxxxxxxxxxxxxxxxxxxxxxx"
1250 .string "GNU C 3.2 20020529 (experimental)"
1251 .byte 0x1
1252 .uleb128 0x2
1253 .ualong 0xa6
1254 .byte 0x1
1255 .string "_superh_trap_handler"
1256 .byte 0x1
1257 .byte 0x2
1258 .byte 0x1
1259 .ualong .LFB1
1260 .ualong .LFE1
1261 .byte 0x1
1262 .byte 0x5e
1263 .uleb128 0x3
1264 .string "trap_reason"
1265 .byte 0x1
1266 .byte 0x1
1267 .ualong 0xa6
1268 .byte 0x2
1269 .byte 0x91
1270 .sleb128 0
1271 .byte 0x0
1272 .uleb128 0x4
1273 .string "unsigned int"
1274 .byte 0x4
1275 .byte 0x7
1276 .byte 0x0
1277 .section .debug_abbrev
1278 .uleb128 0x1
1279 .uleb128 0x11
1280 .byte 0x1
1281 .uleb128 0x10
1282 .uleb128 0x6
1283 .uleb128 0x12
1284 .uleb128 0x1
1285 .uleb128 0x11
1286 .uleb128 0x1
1287 .uleb128 0x3
1288 .uleb128 0x8
1289 .uleb128 0x1b
1290 .uleb128 0x8
1291 .uleb128 0x25
1292 .uleb128 0x8
1293 .uleb128 0x13
1294 .uleb128 0xb
1295 .byte 0x0
1296 .byte 0x0
1297 .uleb128 0x2
1298 .uleb128 0x2e
1299 .byte 0x1
1300 .uleb128 0x1
1301 .uleb128 0x13
1302 .uleb128 0x3f
1303 .uleb128 0xc
1304 .uleb128 0x3
1305 .uleb128 0x8
1306 .uleb128 0x3a
1307 .uleb128 0xb
1308 .uleb128 0x3b
1309 .uleb128 0xb
1310 .uleb128 0x27
1311 .uleb128 0xc
1312 .uleb128 0x11
1313 .uleb128 0x1
1314 .uleb128 0x12
1315 .uleb128 0x1
1316 .uleb128 0x40
1317 .uleb128 0xa
1318 .byte 0x0
1319 .byte 0x0
1320 .uleb128 0x3
1321 .uleb128 0x5
1322 .byte 0x0
1323 .uleb128 0x3
1324 .uleb128 0x8
1325 .uleb128 0x3a
1326 .uleb128 0xb
1327 .uleb128 0x3b
1328 .uleb128 0xb
1329 .uleb128 0x49
1330 .uleb128 0x13
1331 .uleb128 0x2
1332 .uleb128 0xa
1333 .byte 0x0
1334 .byte 0x0
1335 .uleb128 0x4
1336 .uleb128 0x24
1337 .byte 0x0
1338 .uleb128 0x3
1339 .uleb128 0x8
1340 .uleb128 0xb
1341 .uleb128 0xb
1342 .uleb128 0x3e
1343 .uleb128 0xb
1344 .byte 0x0
1345 .byte 0x0
1346 .byte 0x0
1347 .section .debug_pubnames,"",@progbits
1348 .ualong 0x27
1349 .uaword 0x2
1350 .ualong .Ldebug_info0
1351 .ualong 0xb7
1352 .ualong 0x67
1353 .string "_superh_trap_handler"
1354 .ualong 0x0
1355 .section .debug_aranges,"",@progbits
1356 .ualong 0x1c
1357 .uaword 0x2
1358 .ualong .Ldebug_info0
1359 .byte 0x4
1360 .byte 0x0
1361 .uaword 0x0
1362 .uaword 0x0
1363 .ualong .Ltext0
1364 .ualong .Letext0-.Ltext0
1365 .ualong 0x0
1366 .ualong 0x0
1367 #endif /* VBR_SETUP */
1368 #endif /* ! __SH5__ */
1369