Commit | Line | Data |
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27fd2f50 Q |
1 | /* Target-dependent code for the S+core architecture, for GDB, |
2 | the GNU Debugger. | |
3 | ||
32d0add0 | 4 | Copyright (C) 2006-2015 Free Software Foundation, Inc. |
27fd2f50 Q |
5 | |
6 | Contributed by Qinwei (qinwei@sunnorth.com.cn) | |
7 | Contributed by Ching-Peng Lin (cplin@sunplus.com) | |
8 | ||
9 | This file is part of GDB. | |
10 | ||
11 | This program is free software; you can redistribute it and/or modify | |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
27fd2f50 Q |
14 | (at your option) any later version. |
15 | ||
16 | This program is distributed in the hope that it will be useful, | |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
27fd2f50 Q |
23 | |
24 | #include "defs.h" | |
27fd2f50 Q |
25 | #include "inferior.h" |
26 | #include "symtab.h" | |
27 | #include "objfiles.h" | |
28 | #include "gdbcore.h" | |
29 | #include "target.h" | |
30 | #include "arch-utils.h" | |
31 | #include "regcache.h" | |
5f814c3b | 32 | #include "regset.h" |
27fd2f50 Q |
33 | #include "dis-asm.h" |
34 | #include "frame-unwind.h" | |
35 | #include "frame-base.h" | |
36 | #include "trad-frame.h" | |
37 | #include "dwarf2-frame.h" | |
38 | #include "score-tdep.h" | |
39 | ||
5f814c3b DL |
40 | #define G_FLD(_i,_ms,_ls) \ |
41 | ((unsigned)((_i) << (31 - (_ms))) >> (31 - (_ms) + (_ls))) | |
27fd2f50 Q |
42 | |
43 | typedef struct{ | |
c378eb4e MS |
44 | unsigned long long v; |
45 | unsigned long long raw; | |
46 | unsigned int len; | |
27fd2f50 Q |
47 | }inst_t; |
48 | ||
49 | struct score_frame_cache | |
50 | { | |
51 | CORE_ADDR base; | |
5e29c264 | 52 | CORE_ADDR fp; |
27fd2f50 Q |
53 | struct trad_frame_saved_reg *saved_regs; |
54 | }; | |
55 | ||
5f814c3b | 56 | static int target_mach = bfd_mach_score7; |
5e29c264 | 57 | |
27fd2f50 Q |
58 | static struct type * |
59 | score_register_type (struct gdbarch *gdbarch, int regnum) | |
60 | { | |
5f814c3b | 61 | gdb_assert (regnum >= 0 |
c378eb4e MS |
62 | && regnum < ((target_mach == bfd_mach_score7) |
63 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
df4df182 | 64 | return builtin_type (gdbarch)->builtin_uint32; |
27fd2f50 Q |
65 | } |
66 | ||
5f814c3b DL |
67 | static CORE_ADDR |
68 | score_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame) | |
69 | { | |
70 | return frame_unwind_register_unsigned (next_frame, SCORE_SP_REGNUM); | |
71 | } | |
72 | ||
27fd2f50 | 73 | static CORE_ADDR |
30244cd8 | 74 | score_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame) |
27fd2f50 | 75 | { |
30244cd8 | 76 | return frame_unwind_register_unsigned (next_frame, SCORE_PC_REGNUM); |
27fd2f50 Q |
77 | } |
78 | ||
5f814c3b DL |
79 | static const char * |
80 | score7_register_name (struct gdbarch *gdbarch, int regnum) | |
27fd2f50 | 81 | { |
5f814c3b DL |
82 | const char *score_register_names[] = { |
83 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
84 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
85 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
86 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
87 | ||
88 | "PSR", "COND", "ECR", "EXCPVEC", "CCR", | |
89 | "EPC", "EMA", "TLBLOCK", "TLBPT", "PEADDR", | |
90 | "TLBRPT", "PEVN", "PECTX", "LIMPFN", "LDMPFN", | |
91 | "PREV", "DREG", "PC", "DSAVE", "COUNTER", | |
92 | "LDCR", "STCR", "CEH", "CEL", | |
93 | }; | |
94 | ||
95 | gdb_assert (regnum >= 0 && regnum < SCORE7_NUM_REGS); | |
96 | return score_register_names[regnum]; | |
27fd2f50 Q |
97 | } |
98 | ||
99 | static const char * | |
5f814c3b | 100 | score3_register_name (struct gdbarch *gdbarch, int regnum) |
27fd2f50 Q |
101 | { |
102 | const char *score_register_names[] = { | |
103 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
104 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
105 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
106 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
107 | ||
5f814c3b DL |
108 | "PSR", "COND", "ECR", "EXCPVEC", "CCR", |
109 | "EPC", "EMA", "PREV", "DREG", "DSAVE", | |
110 | "COUNTER", "LDCR", "STCR", "CEH", "CEL", | |
111 | "", "", "PC", | |
27fd2f50 Q |
112 | }; |
113 | ||
5f814c3b | 114 | gdb_assert (regnum >= 0 && regnum < SCORE3_NUM_REGS); |
27fd2f50 Q |
115 | return score_register_names[regnum]; |
116 | } | |
117 | ||
5f814c3b | 118 | #if WITH_SIM |
27fd2f50 | 119 | static int |
e7faf938 | 120 | score_register_sim_regno (struct gdbarch *gdbarch, int regnum) |
27fd2f50 | 121 | { |
5f814c3b | 122 | gdb_assert (regnum >= 0 |
c378eb4e MS |
123 | && regnum < ((target_mach == bfd_mach_score7) |
124 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
27fd2f50 Q |
125 | return regnum; |
126 | } | |
5f814c3b | 127 | #endif |
27fd2f50 Q |
128 | |
129 | static int | |
130 | score_print_insn (bfd_vma memaddr, struct disassemble_info *info) | |
131 | { | |
f52cb1b8 | 132 | if (info->endian == BFD_ENDIAN_BIG) |
27fd2f50 Q |
133 | return print_insn_big_score (memaddr, info); |
134 | else | |
135 | return print_insn_little_score (memaddr, info); | |
136 | } | |
137 | ||
5f814c3b | 138 | static inst_t * |
e362b510 | 139 | score7_fetch_inst (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *memblock) |
5f814c3b DL |
140 | { |
141 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
142 | static inst_t inst = { 0, 0, 0 }; | |
e362b510 | 143 | gdb_byte buf[SCORE_INSTLEN] = { 0 }; |
5f814c3b DL |
144 | int big; |
145 | int ret; | |
146 | ||
147 | if (target_has_execution && memblock != NULL) | |
148 | { | |
149 | /* Fetch instruction from local MEMBLOCK. */ | |
150 | memcpy (buf, memblock, SCORE_INSTLEN); | |
151 | } | |
152 | else | |
153 | { | |
154 | /* Fetch instruction from target. */ | |
155 | ret = target_read_memory (addr & ~0x3, buf, SCORE_INSTLEN); | |
156 | if (ret) | |
157 | { | |
a73c6dcd | 158 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
159 | __FILE__, __LINE__); |
160 | return 0; | |
161 | } | |
162 | } | |
163 | ||
164 | inst.raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order); | |
165 | inst.len = (inst.raw & 0x80008000) ? 4 : 2; | |
166 | inst.v = ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF); | |
167 | big = (byte_order == BFD_ENDIAN_BIG); | |
168 | if (inst.len == 2) | |
169 | { | |
170 | if (big ^ ((addr & 0x2) == 2)) | |
171 | inst.v = G_FLD (inst.v, 29, 15); | |
172 | else | |
173 | inst.v = G_FLD (inst.v, 14, 0); | |
174 | } | |
175 | return &inst; | |
176 | } | |
177 | ||
178 | static inst_t * | |
179 | score3_adjust_pc_and_fetch_inst (CORE_ADDR *pcptr, int *lenptr, | |
180 | enum bfd_endian byte_order) | |
181 | { | |
182 | static inst_t inst = { 0, 0, 0 }; | |
183 | ||
184 | struct breakplace | |
185 | { | |
186 | int break_offset; | |
187 | int inst_len; | |
188 | }; | |
189 | /* raw table 1 (column 2, 3, 4) | |
190 | * 0 1 0 * # 2 | |
191 | * 0 1 1 0 # 3 | |
192 | 0 1 1 0 * # 6 | |
193 | table 2 (column 1, 2, 3) | |
194 | * 0 0 * * # 0, 4 | |
195 | 0 1 0 * * # 2 | |
196 | 1 1 0 * * # 6 | |
197 | */ | |
198 | ||
199 | static const struct breakplace bk_table[16] = | |
200 | { | |
201 | /* table 1 */ | |
202 | {0, 0}, | |
203 | {0, 0}, | |
204 | {0, 4}, | |
205 | {0, 6}, | |
206 | {0, 0}, | |
207 | {0, 0}, | |
208 | {-2, 6}, | |
209 | {0, 0}, | |
210 | /* table 2 */ | |
211 | {0, 2}, | |
212 | {0, 0}, | |
213 | {-2, 4}, | |
214 | {0, 0}, | |
215 | {0, 2}, | |
216 | {0, 0}, | |
217 | {-4, 6}, | |
218 | {0, 0} | |
219 | }; | |
220 | ||
221 | #define EXTRACT_LEN 2 | |
222 | CORE_ADDR adjust_pc = *pcptr & ~0x1; | |
5f814c3b DL |
223 | gdb_byte buf[5][EXTRACT_LEN] = |
224 | { | |
225 | {'\0', '\0'}, | |
226 | {'\0', '\0'}, | |
227 | {'\0', '\0'}, | |
228 | {'\0', '\0'}, | |
229 | {'\0', '\0'} | |
230 | }; | |
231 | int ret; | |
232 | unsigned int raw; | |
233 | unsigned int cbits = 0; | |
234 | int bk_index; | |
235 | int i, count; | |
236 | ||
237 | inst.v = 0; | |
238 | inst.raw = 0; | |
239 | inst.len = 0; | |
240 | ||
241 | adjust_pc -= 4; | |
242 | for (i = 0; i < 5; i++) | |
243 | { | |
244 | ret = target_read_memory (adjust_pc + 2 * i, buf[i], EXTRACT_LEN); | |
245 | if (ret != 0) | |
246 | { | |
247 | buf[i][0] = '\0'; | |
248 | buf[i][1] = '\0'; | |
249 | if (i == 2) | |
a73c6dcd | 250 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
251 | __FILE__, __LINE__); |
252 | } | |
253 | ||
254 | raw = extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order); | |
255 | cbits = (cbits << 1) | (raw >> 15); | |
256 | } | |
257 | adjust_pc += 4; | |
258 | ||
259 | if (cbits & 0x4) | |
260 | { | |
261 | /* table 1 */ | |
262 | cbits = (cbits >> 1) & 0x7; | |
263 | bk_index = cbits; | |
264 | } | |
265 | else | |
266 | { | |
267 | /* table 2 */ | |
268 | cbits = (cbits >> 2) & 0x7; | |
269 | bk_index = cbits + 8; | |
270 | } | |
271 | ||
272 | gdb_assert (!((bk_table[bk_index].break_offset == 0) | |
273 | && (bk_table[bk_index].inst_len == 0))); | |
274 | ||
275 | inst.len = bk_table[bk_index].inst_len; | |
276 | ||
277 | i = (bk_table[bk_index].break_offset + 4) / 2; | |
278 | count = inst.len / 2; | |
279 | for (; count > 0; i++, count--) | |
280 | { | |
281 | inst.raw = (inst.raw << 16) | |
282 | | extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order); | |
283 | } | |
284 | ||
285 | switch (inst.len) | |
286 | { | |
287 | case 2: | |
288 | inst.v = inst.raw & 0x7FFF; | |
289 | break; | |
290 | case 4: | |
291 | inst.v = ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF); | |
292 | break; | |
293 | case 6: | |
294 | inst.v = ((inst.raw >> 32 & 0x7FFF) << 30) | |
295 | | ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF); | |
296 | break; | |
297 | } | |
298 | ||
299 | if (pcptr) | |
300 | *pcptr = adjust_pc + bk_table[bk_index].break_offset; | |
301 | if (lenptr) | |
302 | *lenptr = bk_table[bk_index].inst_len; | |
303 | ||
304 | #undef EXTRACT_LEN | |
305 | ||
306 | return &inst; | |
307 | } | |
308 | ||
27fd2f50 | 309 | static const gdb_byte * |
5f814c3b DL |
310 | score7_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, |
311 | int *lenptr) | |
27fd2f50 | 312 | { |
e17a4113 | 313 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
27fd2f50 Q |
314 | gdb_byte buf[SCORE_INSTLEN] = { 0 }; |
315 | int ret; | |
316 | unsigned int raw; | |
317 | ||
318 | if ((ret = target_read_memory (*pcptr & ~0x3, buf, SCORE_INSTLEN)) != 0) | |
319 | { | |
a73c6dcd | 320 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5e29c264 | 321 | __FILE__, __LINE__); |
27fd2f50 | 322 | } |
e17a4113 | 323 | raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order); |
27fd2f50 | 324 | |
e17a4113 | 325 | if (byte_order == BFD_ENDIAN_BIG) |
27fd2f50 Q |
326 | { |
327 | if (!(raw & 0x80008000)) | |
328 | { | |
329 | /* 16bits instruction. */ | |
330 | static gdb_byte big_breakpoint16[] = { 0x60, 0x02 }; | |
331 | *pcptr &= ~0x1; | |
332 | *lenptr = sizeof (big_breakpoint16); | |
333 | return big_breakpoint16; | |
334 | } | |
335 | else | |
336 | { | |
337 | /* 32bits instruction. */ | |
338 | static gdb_byte big_breakpoint32[] = { 0x80, 0x00, 0x80, 0x06 }; | |
339 | *pcptr &= ~0x3; | |
340 | *lenptr = sizeof (big_breakpoint32); | |
341 | return big_breakpoint32; | |
342 | } | |
343 | } | |
344 | else | |
345 | { | |
346 | if (!(raw & 0x80008000)) | |
347 | { | |
348 | /* 16bits instruction. */ | |
349 | static gdb_byte little_breakpoint16[] = { 0x02, 0x60 }; | |
350 | *pcptr &= ~0x1; | |
351 | *lenptr = sizeof (little_breakpoint16); | |
352 | return little_breakpoint16; | |
353 | } | |
354 | else | |
355 | { | |
356 | /* 32bits instruction. */ | |
357 | static gdb_byte little_breakpoint32[] = { 0x06, 0x80, 0x00, 0x80 }; | |
358 | *pcptr &= ~0x3; | |
359 | *lenptr = sizeof (little_breakpoint32); | |
360 | return little_breakpoint32; | |
361 | } | |
362 | } | |
363 | } | |
364 | ||
5f814c3b DL |
365 | static const gdb_byte * |
366 | score3_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, | |
367 | int *lenptr) | |
368 | { | |
369 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
370 | CORE_ADDR adjust_pc = *pcptr; | |
371 | int len; | |
372 | static gdb_byte score_break_insns[6][6] = { | |
373 | /* The following three instructions are big endian. */ | |
374 | { 0x00, 0x20 }, | |
375 | { 0x80, 0x00, 0x00, 0x06 }, | |
376 | { 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 }, | |
377 | /* The following three instructions are little endian. */ | |
378 | { 0x20, 0x00 }, | |
379 | { 0x00, 0x80, 0x06, 0x00 }, | |
380 | { 0x00, 0x80, 0x00, 0x80, 0x00, 0x00 }}; | |
381 | ||
382 | gdb_byte *p = NULL; | |
383 | int index = 0; | |
384 | ||
385 | score3_adjust_pc_and_fetch_inst (&adjust_pc, &len, byte_order); | |
386 | ||
387 | index = ((byte_order == BFD_ENDIAN_BIG) ? 0 : 3) + (len / 2 - 1); | |
388 | p = score_break_insns[index]; | |
389 | ||
390 | *pcptr = adjust_pc; | |
391 | *lenptr = len; | |
392 | ||
393 | return p; | |
394 | } | |
395 | ||
396 | static CORE_ADDR | |
397 | score_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr) | |
398 | { | |
399 | CORE_ADDR adjust_pc = bpaddr; | |
400 | ||
401 | if (target_mach == bfd_mach_score3) | |
402 | score3_adjust_pc_and_fetch_inst (&adjust_pc, NULL, | |
403 | gdbarch_byte_order (gdbarch)); | |
404 | else | |
405 | adjust_pc = align_down (adjust_pc, 2); | |
406 | ||
407 | return adjust_pc; | |
408 | } | |
409 | ||
27fd2f50 Q |
410 | static CORE_ADDR |
411 | score_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr) | |
412 | { | |
413 | return align_down (addr, 16); | |
414 | } | |
415 | ||
416 | static void | |
417 | score_xfer_register (struct regcache *regcache, int regnum, int length, | |
418 | enum bfd_endian endian, gdb_byte *readbuf, | |
419 | const gdb_byte *writebuf, int buf_offset) | |
420 | { | |
421 | int reg_offset = 0; | |
5f814c3b | 422 | gdb_assert (regnum >= 0 |
c378eb4e MS |
423 | && regnum < ((target_mach == bfd_mach_score7) |
424 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
27fd2f50 Q |
425 | |
426 | switch (endian) | |
427 | { | |
428 | case BFD_ENDIAN_BIG: | |
429 | reg_offset = SCORE_REGSIZE - length; | |
430 | break; | |
431 | case BFD_ENDIAN_LITTLE: | |
432 | reg_offset = 0; | |
433 | break; | |
434 | case BFD_ENDIAN_UNKNOWN: | |
435 | reg_offset = 0; | |
436 | break; | |
437 | default: | |
a73c6dcd | 438 | error (_("Error: score_xfer_register in file:%s, line:%d!"), |
5e29c264 | 439 | __FILE__, __LINE__); |
27fd2f50 Q |
440 | } |
441 | ||
442 | if (readbuf != NULL) | |
443 | regcache_cooked_read_part (regcache, regnum, reg_offset, length, | |
444 | readbuf + buf_offset); | |
445 | if (writebuf != NULL) | |
446 | regcache_cooked_write_part (regcache, regnum, reg_offset, length, | |
447 | writebuf + buf_offset); | |
448 | } | |
449 | ||
450 | static enum return_value_convention | |
6a3a010b | 451 | score_return_value (struct gdbarch *gdbarch, struct value *function, |
5f814c3b | 452 | struct type *type, struct regcache *regcache, |
27fd2f50 Q |
453 | gdb_byte * readbuf, const gdb_byte * writebuf) |
454 | { | |
455 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
456 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
457 | || TYPE_CODE (type) == TYPE_CODE_ARRAY) | |
458 | return RETURN_VALUE_STRUCT_CONVENTION; | |
459 | else | |
460 | { | |
461 | int offset; | |
462 | int regnum; | |
463 | for (offset = 0, regnum = SCORE_A0_REGNUM; | |
464 | offset < TYPE_LENGTH (type); | |
465 | offset += SCORE_REGSIZE, regnum++) | |
466 | { | |
467 | int xfer = SCORE_REGSIZE; | |
c378eb4e | 468 | |
27fd2f50 Q |
469 | if (offset + xfer > TYPE_LENGTH (type)) |
470 | xfer = TYPE_LENGTH (type) - offset; | |
4c6b5505 | 471 | score_xfer_register (regcache, regnum, xfer, |
5f814c3b | 472 | gdbarch_byte_order(gdbarch), |
27fd2f50 Q |
473 | readbuf, writebuf, offset); |
474 | } | |
475 | return RETURN_VALUE_REGISTER_CONVENTION; | |
476 | } | |
477 | } | |
478 | ||
479 | static struct frame_id | |
94afd7a6 | 480 | score_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) |
27fd2f50 | 481 | { |
c378eb4e MS |
482 | return frame_id_build (get_frame_register_unsigned (this_frame, |
483 | SCORE_SP_REGNUM), | |
484 | get_frame_pc (this_frame)); | |
27fd2f50 Q |
485 | } |
486 | ||
487 | static int | |
488 | score_type_needs_double_align (struct type *type) | |
489 | { | |
490 | enum type_code typecode = TYPE_CODE (type); | |
491 | ||
5e29c264 Q |
492 | if ((typecode == TYPE_CODE_INT && TYPE_LENGTH (type) == 8) |
493 | || (typecode == TYPE_CODE_FLT && TYPE_LENGTH (type) == 8)) | |
27fd2f50 Q |
494 | return 1; |
495 | else if (typecode == TYPE_CODE_STRUCT || typecode == TYPE_CODE_UNION) | |
496 | { | |
497 | int i, n; | |
498 | ||
499 | n = TYPE_NFIELDS (type); | |
500 | for (i = 0; i < n; i++) | |
501 | if (score_type_needs_double_align (TYPE_FIELD_TYPE (type, i))) | |
502 | return 1; | |
503 | return 0; | |
504 | } | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static CORE_ADDR | |
509 | score_push_dummy_call (struct gdbarch *gdbarch, struct value *function, | |
510 | struct regcache *regcache, CORE_ADDR bp_addr, | |
511 | int nargs, struct value **args, CORE_ADDR sp, | |
512 | int struct_return, CORE_ADDR struct_addr) | |
513 | { | |
e17a4113 | 514 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
27fd2f50 Q |
515 | int argnum; |
516 | int argreg; | |
517 | int arglen = 0; | |
518 | CORE_ADDR stack_offset = 0; | |
519 | CORE_ADDR addr = 0; | |
520 | ||
521 | /* Step 1, Save RA. */ | |
522 | regcache_cooked_write_unsigned (regcache, SCORE_RA_REGNUM, bp_addr); | |
523 | ||
524 | /* Step 2, Make space on the stack for the args. */ | |
525 | struct_addr = align_down (struct_addr, 16); | |
526 | sp = align_down (sp, 16); | |
527 | for (argnum = 0; argnum < nargs; argnum++) | |
528 | arglen += align_up (TYPE_LENGTH (value_type (args[argnum])), | |
529 | SCORE_REGSIZE); | |
530 | sp -= align_up (arglen, 16); | |
531 | ||
532 | argreg = SCORE_BEGIN_ARG_REGNUM; | |
533 | ||
5e29c264 Q |
534 | /* Step 3, Check if struct return then save the struct address to |
535 | r4 and increase the stack_offset by 4. */ | |
27fd2f50 Q |
536 | if (struct_return) |
537 | { | |
538 | regcache_cooked_write_unsigned (regcache, argreg++, struct_addr); | |
539 | stack_offset += SCORE_REGSIZE; | |
540 | } | |
541 | ||
542 | /* Step 4, Load arguments: | |
5e29c264 Q |
543 | If arg length is too long (> 4 bytes), then split the arg and |
544 | save every parts. */ | |
27fd2f50 Q |
545 | for (argnum = 0; argnum < nargs; argnum++) |
546 | { | |
547 | struct value *arg = args[argnum]; | |
548 | struct type *arg_type = check_typedef (value_type (arg)); | |
27fd2f50 Q |
549 | enum type_code typecode = TYPE_CODE (arg_type); |
550 | const gdb_byte *val = value_contents (arg); | |
551 | int downward_offset = 0; | |
1cfd2c3e JB |
552 | int odd_sized_struct_p; |
553 | int arg_last_part_p = 0; | |
27fd2f50 | 554 | |
1cfd2c3e JB |
555 | arglen = TYPE_LENGTH (arg_type); |
556 | odd_sized_struct_p = (arglen > SCORE_REGSIZE | |
5e29c264 | 557 | && arglen % SCORE_REGSIZE != 0); |
27fd2f50 Q |
558 | |
559 | /* If a arg should be aligned to 8 bytes (long long or double), | |
560 | the value should be put to even register numbers. */ | |
561 | if (score_type_needs_double_align (arg_type)) | |
562 | { | |
563 | if (argreg & 1) | |
564 | argreg++; | |
565 | } | |
566 | ||
567 | /* If sizeof a block < SCORE_REGSIZE, then Score GCC will chose | |
568 | the default "downward"/"upward" method: | |
569 | ||
570 | Example: | |
571 | ||
572 | struct struc | |
573 | { | |
574 | char a; char b; char c; | |
575 | } s = {'a', 'b', 'c'}; | |
576 | ||
577 | Big endian: s = {X, 'a', 'b', 'c'} | |
578 | Little endian: s = {'a', 'b', 'c', X} | |
579 | ||
580 | Where X is a hole. */ | |
581 | ||
5f814c3b | 582 | if (gdbarch_byte_order(gdbarch) == BFD_ENDIAN_BIG |
27fd2f50 Q |
583 | && (typecode == TYPE_CODE_STRUCT |
584 | || typecode == TYPE_CODE_UNION) | |
585 | && argreg > SCORE_LAST_ARG_REGNUM | |
586 | && arglen < SCORE_REGSIZE) | |
587 | downward_offset += (SCORE_REGSIZE - arglen); | |
588 | ||
589 | while (arglen > 0) | |
590 | { | |
591 | int partial_len = arglen < SCORE_REGSIZE ? arglen : SCORE_REGSIZE; | |
e17a4113 | 592 | ULONGEST regval = extract_unsigned_integer (val, partial_len, |
5f814c3b | 593 | byte_order); |
27fd2f50 Q |
594 | |
595 | /* The last part of a arg should shift left when | |
4c6b5505 | 596 | gdbarch_byte_order is BFD_ENDIAN_BIG. */ |
5f814c3b | 597 | if (byte_order == BFD_ENDIAN_BIG |
27fd2f50 Q |
598 | && arg_last_part_p == 1 |
599 | && (typecode == TYPE_CODE_STRUCT | |
600 | || typecode == TYPE_CODE_UNION)) | |
601 | regval <<= ((SCORE_REGSIZE - partial_len) * TARGET_CHAR_BIT); | |
602 | ||
603 | /* Always increase the stack_offset and save args to stack. */ | |
604 | addr = sp + stack_offset + downward_offset; | |
605 | write_memory (addr, val, partial_len); | |
606 | ||
607 | if (argreg <= SCORE_LAST_ARG_REGNUM) | |
608 | { | |
609 | regcache_cooked_write_unsigned (regcache, argreg++, regval); | |
610 | if (arglen > SCORE_REGSIZE && arglen < SCORE_REGSIZE * 2) | |
611 | arg_last_part_p = 1; | |
612 | } | |
613 | ||
614 | val += partial_len; | |
615 | arglen -= partial_len; | |
616 | stack_offset += align_up (partial_len, SCORE_REGSIZE); | |
617 | } | |
618 | } | |
619 | ||
620 | /* Step 5, Save SP. */ | |
621 | regcache_cooked_write_unsigned (regcache, SCORE_SP_REGNUM, sp); | |
622 | ||
623 | return sp; | |
624 | } | |
625 | ||
27fd2f50 | 626 | static CORE_ADDR |
5f814c3b | 627 | score7_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) |
27fd2f50 Q |
628 | { |
629 | CORE_ADDR cpc = pc; | |
630 | int iscan = 32, stack_sub = 0; | |
631 | while (iscan-- > 0) | |
632 | { | |
5f814c3b | 633 | inst_t *inst = score7_fetch_inst (gdbarch, cpc, NULL); |
27fd2f50 Q |
634 | if (!inst) |
635 | break; | |
5f814c3b | 636 | if ((inst->len == 4) && !stack_sub |
27fd2f50 Q |
637 | && (G_FLD (inst->v, 29, 25) == 0x1 |
638 | && G_FLD (inst->v, 24, 20) == 0x0)) | |
639 | { | |
640 | /* addi r0, offset */ | |
5f814c3b DL |
641 | stack_sub = cpc + SCORE_INSTLEN; |
642 | pc = cpc + SCORE_INSTLEN; | |
27fd2f50 | 643 | } |
5f814c3b DL |
644 | else if ((inst->len == 4) |
645 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
646 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
647 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
648 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
649 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
27fd2f50 Q |
650 | { |
651 | /* mv r2, r0 */ | |
652 | pc = cpc + SCORE_INSTLEN; | |
653 | break; | |
654 | } | |
5f814c3b DL |
655 | else if ((inst->len == 2) |
656 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
657 | && (G_FLD (inst->v, 11, 8) == 0x2) | |
658 | && (G_FLD (inst->v, 7, 4) == 0x0) | |
659 | && (G_FLD (inst->v, 3, 0) == 0x3)) | |
27fd2f50 Q |
660 | { |
661 | /* mv! r2, r0 */ | |
662 | pc = cpc + SCORE16_INSTLEN; | |
663 | break; | |
664 | } | |
5f814c3b | 665 | else if ((inst->len == 2) |
27fd2f50 Q |
666 | && ((G_FLD (inst->v, 14, 12) == 3) /* j15 form */ |
667 | || (G_FLD (inst->v, 14, 12) == 4) /* b15 form */ | |
668 | || (G_FLD (inst->v, 14, 12) == 0x0 | |
669 | && G_FLD (inst->v, 3, 0) == 0x4))) /* br! */ | |
670 | break; | |
5f814c3b | 671 | else if ((inst->len == 4) |
27fd2f50 Q |
672 | && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */ |
673 | || (G_FLD (inst->v, 29, 25) == 4) /* b32 form */ | |
674 | || (G_FLD (inst->v, 29, 25) == 0x0 | |
675 | && G_FLD (inst->v, 6, 1) == 0x4))) /* br */ | |
676 | break; | |
677 | ||
5f814c3b | 678 | cpc += (inst->len == 2) ? SCORE16_INSTLEN : SCORE_INSTLEN; |
27fd2f50 Q |
679 | } |
680 | return pc; | |
681 | } | |
682 | ||
5f814c3b DL |
683 | static CORE_ADDR |
684 | score3_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) | |
27fd2f50 | 685 | { |
5f814c3b DL |
686 | CORE_ADDR cpc = pc; |
687 | int iscan = 32, stack_sub = 0; | |
688 | while (iscan-- > 0) | |
689 | { | |
690 | inst_t *inst | |
c378eb4e MS |
691 | = score3_adjust_pc_and_fetch_inst (&cpc, NULL, |
692 | gdbarch_byte_order (gdbarch)); | |
27fd2f50 | 693 | |
5f814c3b DL |
694 | if (!inst) |
695 | break; | |
696 | if (inst->len == 4 && !stack_sub | |
697 | && (G_FLD (inst->v, 29, 25) == 0x1) | |
698 | && (G_FLD (inst->v, 19, 17) == 0x0) | |
699 | && (G_FLD (inst->v, 24, 20) == 0x0)) | |
700 | { | |
701 | /* addi r0, offset */ | |
702 | stack_sub = cpc + inst->len; | |
703 | pc = cpc + inst->len; | |
704 | } | |
705 | else if (inst->len == 4 | |
706 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
707 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
708 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
709 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
710 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
711 | { | |
712 | /* mv r2, r0 */ | |
713 | pc = cpc + inst->len; | |
714 | break; | |
715 | } | |
716 | else if ((inst->len == 2) | |
717 | && (G_FLD (inst->v, 14, 10) == 0x10) | |
718 | && (G_FLD (inst->v, 9, 5) == 0x2) | |
719 | && (G_FLD (inst->v, 4, 0) == 0x0)) | |
720 | { | |
721 | /* mv! r2, r0 */ | |
722 | pc = cpc + inst->len; | |
723 | break; | |
724 | } | |
725 | else if (inst->len == 2 | |
726 | && ((G_FLD (inst->v, 14, 12) == 3) /* b15 form */ | |
727 | || (G_FLD (inst->v, 14, 12) == 0x0 | |
728 | && G_FLD (inst->v, 11, 5) == 0x4))) /* br! */ | |
729 | break; | |
730 | else if (inst->len == 4 | |
731 | && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */ | |
732 | || (G_FLD (inst->v, 29, 25) == 4))) /* b32 form */ | |
733 | break; | |
734 | ||
735 | cpc += inst->len; | |
736 | } | |
737 | return pc; | |
738 | } | |
739 | ||
c9cf6e20 MG |
740 | /* Implement the stack_frame_destroyed_p gdbarch method. */ |
741 | ||
5f814c3b | 742 | static int |
c9cf6e20 | 743 | score7_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc) |
5f814c3b DL |
744 | { |
745 | inst_t *inst = score7_fetch_inst (gdbarch, cur_pc, NULL); | |
746 | ||
747 | if (inst->v == 0x23) | |
748 | return 1; /* mv! r0, r2 */ | |
749 | else if (G_FLD (inst->v, 14, 12) == 0x2 | |
750 | && G_FLD (inst->v, 3, 0) == 0xa) | |
751 | return 1; /* pop! */ | |
27fd2f50 Q |
752 | else if (G_FLD (inst->v, 14, 12) == 0x0 |
753 | && G_FLD (inst->v, 7, 0) == 0x34) | |
754 | return 1; /* br! r3 */ | |
755 | else if (G_FLD (inst->v, 29, 15) == 0x2 | |
756 | && G_FLD (inst->v, 6, 1) == 0x2b) | |
757 | return 1; /* mv r0, r2 */ | |
758 | else if (G_FLD (inst->v, 29, 25) == 0x0 | |
759 | && G_FLD (inst->v, 6, 1) == 0x4 | |
760 | && G_FLD (inst->v, 19, 15) == 0x3) | |
761 | return 1; /* br r3 */ | |
762 | else | |
763 | return 0; | |
764 | } | |
765 | ||
c9cf6e20 MG |
766 | /* Implement the stack_frame_destroyed_p gdbarch method. */ |
767 | ||
5f814c3b | 768 | static int |
c9cf6e20 | 769 | score3_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc) |
5f814c3b DL |
770 | { |
771 | CORE_ADDR pc = cur_pc; | |
772 | inst_t *inst | |
c378eb4e MS |
773 | = score3_adjust_pc_and_fetch_inst (&pc, NULL, |
774 | gdbarch_byte_order (gdbarch)); | |
5f814c3b DL |
775 | |
776 | if (inst->len == 2 | |
777 | && (G_FLD (inst->v, 14, 10) == 0x10) | |
778 | && (G_FLD (inst->v, 9, 5) == 0x0) | |
779 | && (G_FLD (inst->v, 4, 0) == 0x2)) | |
780 | return 1; /* mv! r0, r2 */ | |
781 | else if (inst->len == 4 | |
782 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
783 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
784 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
785 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
786 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
787 | return 1; /* mv r0, r2 */ | |
788 | else if (inst->len == 2 | |
789 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
790 | && (G_FLD (inst->v, 11, 5) == 0x2)) | |
791 | return 1; /* pop! */ | |
792 | else if (inst->len == 2 | |
793 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
794 | && (G_FLD (inst->v, 11, 7) == 0x0) | |
795 | && (G_FLD (inst->v, 6, 5) == 0x2)) | |
796 | return 1; /* rpop! */ | |
797 | else if (inst->len == 2 | |
798 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
799 | && (G_FLD (inst->v, 11, 5) == 0x4) | |
800 | && (G_FLD (inst->v, 4, 0) == 0x3)) | |
801 | return 1; /* br! r3 */ | |
802 | else if (inst->len == 4 | |
803 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
804 | && (G_FLD (inst->v, 24, 20) == 0x0) | |
805 | && (G_FLD (inst->v, 19, 15) == 0x3) | |
806 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
807 | && (G_FLD (inst->v, 9, 0) == 0x8)) | |
808 | return 1; /* br r3 */ | |
809 | else | |
810 | return 0; | |
811 | } | |
812 | ||
e362b510 | 813 | static gdb_byte * |
5f814c3b DL |
814 | score7_malloc_and_get_memblock (CORE_ADDR addr, CORE_ADDR size) |
815 | { | |
816 | int ret; | |
e362b510 | 817 | gdb_byte *memblock = NULL; |
5f814c3b DL |
818 | |
819 | if (size < 0) | |
820 | { | |
a73c6dcd | 821 | error (_("Error: malloc size < 0 in file:%s, line:%d!"), |
5f814c3b DL |
822 | __FILE__, __LINE__); |
823 | return NULL; | |
824 | } | |
825 | else if (size == 0) | |
826 | return NULL; | |
827 | ||
224c3ddb | 828 | memblock = (gdb_byte *) xmalloc (size); |
5f814c3b DL |
829 | memset (memblock, 0, size); |
830 | ret = target_read_memory (addr & ~0x3, memblock, size); | |
831 | if (ret) | |
832 | { | |
a73c6dcd | 833 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
834 | __FILE__, __LINE__); |
835 | return NULL; | |
836 | } | |
837 | return memblock; | |
838 | } | |
839 | ||
27fd2f50 | 840 | static void |
948f8e3d | 841 | score7_free_memblock (gdb_byte *memblock) |
5f814c3b DL |
842 | { |
843 | xfree (memblock); | |
844 | } | |
845 | ||
846 | static void | |
e362b510 | 847 | score7_adjust_memblock_ptr (gdb_byte **memblock, CORE_ADDR prev_pc, |
5f814c3b DL |
848 | CORE_ADDR cur_pc) |
849 | { | |
850 | if (prev_pc == -1) | |
851 | { | |
852 | /* First time call this function, do nothing. */ | |
853 | } | |
854 | else if (cur_pc - prev_pc == 2 && (cur_pc & 0x3) == 0) | |
855 | { | |
856 | /* First 16-bit instruction, then 32-bit instruction. */ | |
857 | *memblock += SCORE_INSTLEN; | |
858 | } | |
859 | else if (cur_pc - prev_pc == 4) | |
860 | { | |
861 | /* Is 32-bit instruction, increase MEMBLOCK by 4. */ | |
862 | *memblock += SCORE_INSTLEN; | |
863 | } | |
864 | } | |
865 | ||
866 | static void | |
867 | score7_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc, | |
94afd7a6 | 868 | struct frame_info *this_frame, |
27fd2f50 Q |
869 | struct score_frame_cache *this_cache) |
870 | { | |
94afd7a6 | 871 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
27fd2f50 | 872 | CORE_ADDR sp; |
5e29c264 | 873 | CORE_ADDR fp; |
27fd2f50 Q |
874 | CORE_ADDR cur_pc = startaddr; |
875 | ||
876 | int sp_offset = 0; | |
877 | int ra_offset = 0; | |
878 | int fp_offset = 0; | |
879 | int ra_offset_p = 0; | |
880 | int fp_offset_p = 0; | |
881 | int inst_len = 0; | |
882 | ||
e362b510 PA |
883 | gdb_byte *memblock = NULL; |
884 | gdb_byte *memblock_ptr = NULL; | |
5e29c264 Q |
885 | CORE_ADDR prev_pc = -1; |
886 | ||
887 | /* Allocate MEMBLOCK if PC - STARTADDR > 0. */ | |
888 | memblock_ptr = memblock = | |
5f814c3b | 889 | score7_malloc_and_get_memblock (startaddr, pc - startaddr); |
5e29c264 | 890 | |
94afd7a6 UW |
891 | sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM); |
892 | fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM); | |
27fd2f50 | 893 | |
5e29c264 | 894 | for (; cur_pc < pc; prev_pc = cur_pc, cur_pc += inst_len) |
27fd2f50 | 895 | { |
5e29c264 Q |
896 | inst_t *inst = NULL; |
897 | if (memblock != NULL) | |
898 | { | |
899 | /* Reading memory block from target succefully and got all | |
900 | the instructions(from STARTADDR to PC) needed. */ | |
5f814c3b DL |
901 | score7_adjust_memblock_ptr (&memblock, prev_pc, cur_pc); |
902 | inst = score7_fetch_inst (gdbarch, cur_pc, memblock); | |
5e29c264 Q |
903 | } |
904 | else | |
905 | { | |
906 | /* Otherwise, we fetch 4 bytes from target, and GDB also | |
907 | work correctly. */ | |
5f814c3b | 908 | inst = score7_fetch_inst (gdbarch, cur_pc, NULL); |
5e29c264 Q |
909 | } |
910 | ||
c378eb4e | 911 | /* FIXME: make a full-power prologue analyzer. */ |
5f814c3b | 912 | if (inst->len == 2) |
27fd2f50 Q |
913 | { |
914 | inst_len = SCORE16_INSTLEN; | |
915 | ||
916 | if (G_FLD (inst->v, 14, 12) == 0x2 | |
917 | && G_FLD (inst->v, 3, 0) == 0xe) | |
918 | { | |
919 | /* push! */ | |
920 | sp_offset += 4; | |
921 | ||
922 | if (G_FLD (inst->v, 11, 7) == 0x6 | |
923 | && ra_offset_p == 0) | |
924 | { | |
925 | /* push! r3, [r0] */ | |
926 | ra_offset = sp_offset; | |
927 | ra_offset_p = 1; | |
928 | } | |
929 | else if (G_FLD (inst->v, 11, 7) == 0x4 | |
930 | && fp_offset_p == 0) | |
931 | { | |
932 | /* push! r2, [r0] */ | |
933 | fp_offset = sp_offset; | |
934 | fp_offset_p = 1; | |
935 | } | |
936 | } | |
937 | else if (G_FLD (inst->v, 14, 12) == 0x2 | |
938 | && G_FLD (inst->v, 3, 0) == 0xa) | |
939 | { | |
940 | /* pop! */ | |
941 | sp_offset -= 4; | |
942 | } | |
943 | else if (G_FLD (inst->v, 14, 7) == 0xc1 | |
944 | && G_FLD (inst->v, 2, 0) == 0x0) | |
945 | { | |
946 | /* subei! r0, n */ | |
947 | sp_offset += (int) pow (2, G_FLD (inst->v, 6, 3)); | |
948 | } | |
949 | else if (G_FLD (inst->v, 14, 7) == 0xc0 | |
950 | && G_FLD (inst->v, 2, 0) == 0x0) | |
951 | { | |
952 | /* addei! r0, n */ | |
953 | sp_offset -= (int) pow (2, G_FLD (inst->v, 6, 3)); | |
954 | } | |
955 | } | |
956 | else | |
957 | { | |
958 | inst_len = SCORE_INSTLEN; | |
959 | ||
5f814c3b DL |
960 | if (G_FLD(inst->v, 29, 25) == 0x3 |
961 | && G_FLD(inst->v, 2, 0) == 0x4 | |
962 | && G_FLD(inst->v, 19, 15) == 0) | |
27fd2f50 | 963 | { |
5f814c3b DL |
964 | /* sw rD, [r0, offset]+ */ |
965 | sp_offset += SCORE_INSTLEN; | |
966 | ||
967 | if (G_FLD(inst->v, 24, 20) == 0x3) | |
968 | { | |
969 | /* rD = r3 */ | |
970 | if (ra_offset_p == 0) | |
971 | { | |
972 | ra_offset = sp_offset; | |
973 | ra_offset_p = 1; | |
974 | } | |
975 | } | |
976 | else if (G_FLD(inst->v, 24, 20) == 0x2) | |
977 | { | |
978 | /* rD = r2 */ | |
979 | if (fp_offset_p == 0) | |
980 | { | |
981 | fp_offset = sp_offset; | |
982 | fp_offset_p = 1; | |
983 | } | |
984 | } | |
27fd2f50 | 985 | } |
5f814c3b DL |
986 | else if (G_FLD(inst->v, 29, 25) == 0x14 |
987 | && G_FLD(inst->v, 19,15) == 0) | |
27fd2f50 | 988 | { |
5f814c3b DL |
989 | /* sw rD, [r0, offset] */ |
990 | if (G_FLD(inst->v, 24, 20) == 0x3) | |
991 | { | |
992 | /* rD = r3 */ | |
993 | ra_offset = sp_offset - G_FLD(inst->v, 14, 0); | |
994 | ra_offset_p = 1; | |
995 | } | |
996 | else if (G_FLD(inst->v, 24, 20) == 0x2) | |
997 | { | |
998 | /* rD = r2 */ | |
999 | fp_offset = sp_offset - G_FLD(inst->v, 14, 0); | |
1000 | fp_offset_p = 1; | |
1001 | } | |
27fd2f50 Q |
1002 | } |
1003 | else if (G_FLD (inst->v, 29, 15) == 0x1c60 | |
1004 | && G_FLD (inst->v, 2, 0) == 0x0) | |
1005 | { | |
1006 | /* lw r3, [r0]+, 4 */ | |
1007 | sp_offset -= SCORE_INSTLEN; | |
1008 | ra_offset_p = 1; | |
1009 | } | |
1010 | else if (G_FLD (inst->v, 29, 15) == 0x1c40 | |
1011 | && G_FLD (inst->v, 2, 0) == 0x0) | |
1012 | { | |
1013 | /* lw r2, [r0]+, 4 */ | |
1014 | sp_offset -= SCORE_INSTLEN; | |
1015 | fp_offset_p = 1; | |
1016 | } | |
1017 | ||
1018 | else if (G_FLD (inst->v, 29, 17) == 0x100 | |
1019 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1020 | { | |
1021 | /* addi r0, -offset */ | |
1022 | sp_offset += 65536 - G_FLD (inst->v, 16, 1); | |
1023 | } | |
1024 | else if (G_FLD (inst->v, 29, 17) == 0x110 | |
1025 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1026 | { | |
1027 | /* addi r2, offset */ | |
1028 | if (pc - cur_pc > 4) | |
1029 | { | |
1030 | unsigned int save_v = inst->v; | |
1031 | inst_t *inst2 = | |
5f814c3b | 1032 | score7_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL); |
27fd2f50 | 1033 | if (inst2->v == 0x23) |
5e29c264 Q |
1034 | { |
1035 | /* mv! r0, r2 */ | |
1036 | sp_offset -= G_FLD (save_v, 16, 1); | |
1037 | } | |
27fd2f50 Q |
1038 | } |
1039 | } | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | /* Save RA. */ | |
1044 | if (ra_offset_p == 1) | |
1045 | { | |
1046 | if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1) | |
1047 | this_cache->saved_regs[SCORE_PC_REGNUM].addr = | |
1048 | sp + sp_offset - ra_offset; | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | this_cache->saved_regs[SCORE_PC_REGNUM] = | |
1053 | this_cache->saved_regs[SCORE_RA_REGNUM]; | |
1054 | } | |
1055 | ||
1056 | /* Save FP. */ | |
1057 | if (fp_offset_p == 1) | |
1058 | { | |
1059 | if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1) | |
1060 | this_cache->saved_regs[SCORE_FP_REGNUM].addr = | |
1061 | sp + sp_offset - fp_offset; | |
1062 | } | |
1063 | ||
5e29c264 Q |
1064 | /* Save SP and FP. */ |
1065 | this_cache->base = sp + sp_offset; | |
1066 | this_cache->fp = fp; | |
1067 | ||
1068 | /* Don't forget to free MEMBLOCK if we allocated it. */ | |
1069 | if (memblock_ptr != NULL) | |
5f814c3b DL |
1070 | score7_free_memblock (memblock_ptr); |
1071 | } | |
1072 | ||
1073 | static void | |
1074 | score3_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc, | |
1075 | struct frame_info *this_frame, | |
1076 | struct score_frame_cache *this_cache) | |
1077 | { | |
1078 | CORE_ADDR sp; | |
1079 | CORE_ADDR fp; | |
1080 | CORE_ADDR cur_pc = startaddr; | |
c378eb4e MS |
1081 | enum bfd_endian byte_order |
1082 | = gdbarch_byte_order (get_frame_arch (this_frame)); | |
5f814c3b DL |
1083 | |
1084 | int sp_offset = 0; | |
1085 | int ra_offset = 0; | |
1086 | int fp_offset = 0; | |
1087 | int ra_offset_p = 0; | |
1088 | int fp_offset_p = 0; | |
1089 | int inst_len = 0; | |
1090 | ||
1091 | CORE_ADDR prev_pc = -1; | |
1092 | ||
1093 | sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM); | |
1094 | fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM); | |
1095 | ||
1096 | for (; cur_pc < pc; prev_pc = cur_pc, cur_pc += inst_len) | |
1097 | { | |
1098 | inst_t *inst = NULL; | |
1099 | ||
1100 | inst = score3_adjust_pc_and_fetch_inst (&cur_pc, &inst_len, byte_order); | |
1101 | ||
c378eb4e | 1102 | /* FIXME: make a full-power prologue analyzer. */ |
5f814c3b DL |
1103 | if (inst->len == 2) |
1104 | { | |
1105 | if (G_FLD (inst->v, 14, 12) == 0x0 | |
1106 | && G_FLD (inst->v, 11, 7) == 0x0 | |
1107 | && G_FLD (inst->v, 6, 5) == 0x3) | |
1108 | { | |
1109 | /* push! */ | |
1110 | sp_offset += 4; | |
1111 | ||
1112 | if (G_FLD (inst->v, 4, 0) == 0x3 | |
1113 | && ra_offset_p == 0) | |
1114 | { | |
1115 | /* push! r3, [r0] */ | |
1116 | ra_offset = sp_offset; | |
1117 | ra_offset_p = 1; | |
1118 | } | |
1119 | else if (G_FLD (inst->v, 4, 0) == 0x2 | |
1120 | && fp_offset_p == 0) | |
1121 | { | |
1122 | /* push! r2, [r0] */ | |
1123 | fp_offset = sp_offset; | |
1124 | fp_offset_p = 1; | |
1125 | } | |
1126 | } | |
1127 | else if (G_FLD (inst->v, 14, 12) == 0x6 | |
1128 | && G_FLD (inst->v, 11, 10) == 0x3) | |
1129 | { | |
1130 | /* rpush! */ | |
1131 | int start_r = G_FLD (inst->v, 9, 5); | |
1132 | int cnt = G_FLD (inst->v, 4, 0); | |
1133 | ||
1134 | if ((ra_offset_p == 0) | |
1135 | && (start_r <= SCORE_RA_REGNUM) | |
1136 | && (SCORE_RA_REGNUM < start_r + cnt)) | |
1137 | { | |
1138 | /* rpush! contains r3 */ | |
1139 | ra_offset_p = 1; | |
1140 | ra_offset = sp_offset + 4 * (SCORE_RA_REGNUM - start_r) + 4; | |
1141 | } | |
1142 | ||
1143 | if ((fp_offset_p == 0) | |
1144 | && (start_r <= SCORE_FP_REGNUM) | |
1145 | && (SCORE_FP_REGNUM < start_r + cnt)) | |
1146 | { | |
1147 | /* rpush! contains r2 */ | |
1148 | fp_offset_p = 1; | |
1149 | fp_offset = sp_offset + 4 * (SCORE_FP_REGNUM - start_r) + 4; | |
1150 | } | |
1151 | ||
1152 | sp_offset += 4 * cnt; | |
1153 | } | |
1154 | else if (G_FLD (inst->v, 14, 12) == 0x0 | |
1155 | && G_FLD (inst->v, 11, 7) == 0x0 | |
1156 | && G_FLD (inst->v, 6, 5) == 0x2) | |
1157 | { | |
1158 | /* pop! */ | |
1159 | sp_offset -= 4; | |
1160 | } | |
1161 | else if (G_FLD (inst->v, 14, 12) == 0x6 | |
1162 | && G_FLD (inst->v, 11, 10) == 0x2) | |
1163 | { | |
1164 | /* rpop! */ | |
1165 | sp_offset -= 4 * G_FLD (inst->v, 4, 0); | |
1166 | } | |
1167 | else if (G_FLD (inst->v, 14, 12) == 0x5 | |
1168 | && G_FLD (inst->v, 11, 10) == 0x3 | |
1169 | && G_FLD (inst->v, 9, 6) == 0x0) | |
1170 | { | |
1171 | /* addi! r0, -offset */ | |
1172 | int imm = G_FLD (inst->v, 5, 0); | |
1173 | if (imm >> 5) | |
1174 | imm = -(0x3F - imm + 1); | |
1175 | sp_offset -= imm; | |
1176 | } | |
1177 | else if (G_FLD (inst->v, 14, 12) == 0x5 | |
1178 | && G_FLD (inst->v, 11, 10) == 0x3 | |
1179 | && G_FLD (inst->v, 9, 6) == 0x2) | |
1180 | { | |
1181 | /* addi! r2, offset */ | |
1182 | if (pc - cur_pc >= 2) | |
1183 | { | |
1184 | unsigned int save_v = inst->v; | |
1185 | inst_t *inst2; | |
1186 | ||
1187 | cur_pc += inst->len; | |
c378eb4e MS |
1188 | inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL, |
1189 | byte_order); | |
5f814c3b DL |
1190 | |
1191 | if (inst2->len == 2 | |
1192 | && G_FLD (inst2->v, 14, 10) == 0x10 | |
1193 | && G_FLD (inst2->v, 9, 5) == 0x0 | |
1194 | && G_FLD (inst2->v, 4, 0) == 0x2) | |
1195 | { | |
1196 | /* mv! r0, r2 */ | |
1197 | int imm = G_FLD (inst->v, 5, 0); | |
1198 | if (imm >> 5) | |
1199 | imm = -(0x3F - imm + 1); | |
1200 | sp_offset -= imm; | |
1201 | } | |
1202 | } | |
1203 | } | |
1204 | } | |
1205 | else if (inst->len == 4) | |
1206 | { | |
1207 | if (G_FLD (inst->v, 29, 25) == 0x3 | |
1208 | && G_FLD (inst->v, 2, 0) == 0x4 | |
1209 | && G_FLD (inst->v, 24, 20) == 0x3 | |
1210 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1211 | { | |
1212 | /* sw r3, [r0, offset]+ */ | |
1213 | sp_offset += inst->len; | |
1214 | if (ra_offset_p == 0) | |
1215 | { | |
1216 | ra_offset = sp_offset; | |
1217 | ra_offset_p = 1; | |
1218 | } | |
1219 | } | |
1220 | else if (G_FLD (inst->v, 29, 25) == 0x3 | |
1221 | && G_FLD (inst->v, 2, 0) == 0x4 | |
1222 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1223 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1224 | { | |
1225 | /* sw r2, [r0, offset]+ */ | |
1226 | sp_offset += inst->len; | |
1227 | if (fp_offset_p == 0) | |
1228 | { | |
1229 | fp_offset = sp_offset; | |
1230 | fp_offset_p = 1; | |
1231 | } | |
1232 | } | |
1233 | else if (G_FLD (inst->v, 29, 25) == 0x7 | |
1234 | && G_FLD (inst->v, 2, 0) == 0x0 | |
1235 | && G_FLD (inst->v, 24, 20) == 0x3 | |
1236 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1237 | { | |
1238 | /* lw r3, [r0]+, 4 */ | |
1239 | sp_offset -= inst->len; | |
1240 | ra_offset_p = 1; | |
1241 | } | |
1242 | else if (G_FLD (inst->v, 29, 25) == 0x7 | |
1243 | && G_FLD (inst->v, 2, 0) == 0x0 | |
1244 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1245 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1246 | { | |
1247 | /* lw r2, [r0]+, 4 */ | |
1248 | sp_offset -= inst->len; | |
1249 | fp_offset_p = 1; | |
1250 | } | |
1251 | else if (G_FLD (inst->v, 29, 25) == 0x1 | |
1252 | && G_FLD (inst->v, 19, 17) == 0x0 | |
1253 | && G_FLD (inst->v, 24, 20) == 0x0 | |
1254 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1255 | { | |
1256 | /* addi r0, -offset */ | |
1257 | int imm = G_FLD (inst->v, 16, 1); | |
1258 | if (imm >> 15) | |
1259 | imm = -(0xFFFF - imm + 1); | |
1260 | sp_offset -= imm; | |
1261 | } | |
1262 | else if (G_FLD (inst->v, 29, 25) == 0x1 | |
1263 | && G_FLD (inst->v, 19, 17) == 0x0 | |
1264 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1265 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1266 | { | |
1267 | /* addi r2, offset */ | |
1268 | if (pc - cur_pc >= 2) | |
1269 | { | |
1270 | unsigned int save_v = inst->v; | |
1271 | inst_t *inst2; | |
1272 | ||
1273 | cur_pc += inst->len; | |
c378eb4e MS |
1274 | inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL, |
1275 | byte_order); | |
5f814c3b DL |
1276 | |
1277 | if (inst2->len == 2 | |
1278 | && G_FLD (inst2->v, 14, 10) == 0x10 | |
1279 | && G_FLD (inst2->v, 9, 5) == 0x0 | |
1280 | && G_FLD (inst2->v, 4, 0) == 0x2) | |
1281 | { | |
1282 | /* mv! r0, r2 */ | |
1283 | int imm = G_FLD (inst->v, 16, 1); | |
1284 | if (imm >> 15) | |
1285 | imm = -(0xFFFF - imm + 1); | |
1286 | sp_offset -= imm; | |
1287 | } | |
1288 | } | |
1289 | } | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | /* Save RA. */ | |
1294 | if (ra_offset_p == 1) | |
1295 | { | |
1296 | if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1) | |
1297 | this_cache->saved_regs[SCORE_PC_REGNUM].addr = | |
1298 | sp + sp_offset - ra_offset; | |
1299 | } | |
1300 | else | |
1301 | { | |
1302 | this_cache->saved_regs[SCORE_PC_REGNUM] = | |
1303 | this_cache->saved_regs[SCORE_RA_REGNUM]; | |
1304 | } | |
1305 | ||
1306 | /* Save FP. */ | |
1307 | if (fp_offset_p == 1) | |
1308 | { | |
1309 | if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1) | |
1310 | this_cache->saved_regs[SCORE_FP_REGNUM].addr = | |
1311 | sp + sp_offset - fp_offset; | |
1312 | } | |
1313 | ||
1314 | /* Save SP and FP. */ | |
1315 | this_cache->base = sp + sp_offset; | |
1316 | this_cache->fp = fp; | |
27fd2f50 Q |
1317 | } |
1318 | ||
1319 | static struct score_frame_cache * | |
94afd7a6 | 1320 | score_make_prologue_cache (struct frame_info *this_frame, void **this_cache) |
27fd2f50 Q |
1321 | { |
1322 | struct score_frame_cache *cache; | |
1323 | ||
1324 | if ((*this_cache) != NULL) | |
19ba03f4 | 1325 | return (struct score_frame_cache *) (*this_cache); |
27fd2f50 Q |
1326 | |
1327 | cache = FRAME_OBSTACK_ZALLOC (struct score_frame_cache); | |
1328 | (*this_cache) = cache; | |
94afd7a6 | 1329 | cache->saved_regs = trad_frame_alloc_saved_regs (this_frame); |
27fd2f50 Q |
1330 | |
1331 | /* Analyze the prologue. */ | |
1332 | { | |
94afd7a6 | 1333 | const CORE_ADDR pc = get_frame_pc (this_frame); |
27fd2f50 Q |
1334 | CORE_ADDR start_addr; |
1335 | ||
1336 | find_pc_partial_function (pc, NULL, &start_addr, NULL); | |
1337 | if (start_addr == 0) | |
1338 | return cache; | |
5f814c3b DL |
1339 | |
1340 | if (target_mach == bfd_mach_score3) | |
19ba03f4 SM |
1341 | score3_analyze_prologue (start_addr, pc, this_frame, |
1342 | (struct score_frame_cache *) *this_cache); | |
5f814c3b | 1343 | else |
19ba03f4 SM |
1344 | score7_analyze_prologue (start_addr, pc, this_frame, |
1345 | (struct score_frame_cache *) *this_cache); | |
27fd2f50 Q |
1346 | } |
1347 | ||
1348 | /* Save SP. */ | |
1349 | trad_frame_set_value (cache->saved_regs, SCORE_SP_REGNUM, cache->base); | |
1350 | ||
19ba03f4 | 1351 | return (struct score_frame_cache *) (*this_cache); |
27fd2f50 Q |
1352 | } |
1353 | ||
1354 | static void | |
94afd7a6 | 1355 | score_prologue_this_id (struct frame_info *this_frame, void **this_cache, |
27fd2f50 Q |
1356 | struct frame_id *this_id) |
1357 | { | |
94afd7a6 | 1358 | struct score_frame_cache *info = score_make_prologue_cache (this_frame, |
27fd2f50 | 1359 | this_cache); |
94afd7a6 | 1360 | (*this_id) = frame_id_build (info->base, get_frame_func (this_frame)); |
27fd2f50 Q |
1361 | } |
1362 | ||
94afd7a6 UW |
1363 | static struct value * |
1364 | score_prologue_prev_register (struct frame_info *this_frame, | |
1365 | void **this_cache, int regnum) | |
27fd2f50 | 1366 | { |
94afd7a6 | 1367 | struct score_frame_cache *info = score_make_prologue_cache (this_frame, |
27fd2f50 | 1368 | this_cache); |
94afd7a6 | 1369 | return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum); |
27fd2f50 Q |
1370 | } |
1371 | ||
1372 | static const struct frame_unwind score_prologue_unwind = | |
1373 | { | |
1374 | NORMAL_FRAME, | |
8fbca658 | 1375 | default_frame_unwind_stop_reason, |
27fd2f50 | 1376 | score_prologue_this_id, |
94afd7a6 UW |
1377 | score_prologue_prev_register, |
1378 | NULL, | |
5f814c3b DL |
1379 | default_frame_sniffer, |
1380 | NULL | |
27fd2f50 Q |
1381 | }; |
1382 | ||
27fd2f50 | 1383 | static CORE_ADDR |
94afd7a6 | 1384 | score_prologue_frame_base_address (struct frame_info *this_frame, |
27fd2f50 Q |
1385 | void **this_cache) |
1386 | { | |
1387 | struct score_frame_cache *info = | |
94afd7a6 | 1388 | score_make_prologue_cache (this_frame, this_cache); |
5e29c264 | 1389 | return info->fp; |
27fd2f50 Q |
1390 | } |
1391 | ||
1392 | static const struct frame_base score_prologue_frame_base = | |
1393 | { | |
1394 | &score_prologue_unwind, | |
1395 | score_prologue_frame_base_address, | |
1396 | score_prologue_frame_base_address, | |
1397 | score_prologue_frame_base_address, | |
1398 | }; | |
1399 | ||
1400 | static const struct frame_base * | |
94afd7a6 | 1401 | score_prologue_frame_base_sniffer (struct frame_info *this_frame) |
27fd2f50 Q |
1402 | { |
1403 | return &score_prologue_frame_base; | |
1404 | } | |
1405 | ||
c5741217 AA |
1406 | /* Core file support. */ |
1407 | ||
1408 | static const struct regcache_map_entry score7_linux_gregmap[] = | |
1409 | { | |
1410 | /* FIXME: According to the current Linux kernel, r0 is preceded by | |
1411 | 9 rather than 7 words. */ | |
1412 | { 7, REGCACHE_MAP_SKIP, 4 }, | |
1413 | { 32, 0, 4 }, /* r0 ... r31 */ | |
1414 | { 1, 55, 4 }, /* CEL */ | |
1415 | { 1, 54, 4 }, /* CEH */ | |
1416 | { 1, 53, 4 }, /* sr0, i.e. cnt or COUNTER */ | |
1417 | { 1, 52, 4 }, /* sr1, i.e. lcr or LDCR */ | |
1418 | { 1, 51, 4 }, /* sr2, i.e. scr or STCR */ | |
1419 | { 1, 49, 4 }, /* PC (same slot as EPC) */ | |
1420 | { 1, 38, 4 }, /* EMA */ | |
1421 | { 1, 32, 4 }, /* PSR */ | |
1422 | { 1, 34, 4 }, /* ECR */ | |
1423 | { 1, 33, 4 }, /* COND */ | |
1424 | { 0 } | |
1425 | }; | |
1426 | ||
1427 | #define SCORE7_LINUX_EPC_OFFSET (44 * 4) | |
1428 | #define SCORE7_LINUX_SIZEOF_GREGSET (49 * 4) | |
5f814c3b DL |
1429 | |
1430 | static void | |
1431 | score7_linux_supply_gregset(const struct regset *regset, | |
c5741217 AA |
1432 | struct regcache *regcache, |
1433 | int regnum, const void *buf, | |
1434 | size_t size) | |
5f814c3b | 1435 | { |
c5741217 AA |
1436 | regcache_supply_regset (regset, regcache, regnum, buf, size); |
1437 | ||
1438 | /* Supply the EPC from the same slot as the PC. Note that the | |
1439 | collect function will store the PC in that slot. */ | |
1440 | if ((regnum == -1 || regnum == SCORE_EPC_REGNUM) | |
1441 | && size >= SCORE7_LINUX_EPC_OFFSET + 4) | |
1442 | regcache_raw_supply (regcache, SCORE_EPC_REGNUM, | |
1443 | (const gdb_byte *) buf | |
1444 | + SCORE7_LINUX_EPC_OFFSET); | |
5f814c3b DL |
1445 | } |
1446 | ||
8fea3224 AA |
1447 | static const struct regset score7_linux_gregset = |
1448 | { | |
c5741217 AA |
1449 | score7_linux_gregmap, |
1450 | score7_linux_supply_gregset, | |
1451 | regcache_collect_regset | |
8fea3224 AA |
1452 | }; |
1453 | ||
9845a0b5 | 1454 | /* Iterate over core file register note sections. */ |
5f814c3b | 1455 | |
9845a0b5 AA |
1456 | static void |
1457 | score7_linux_iterate_over_regset_sections (struct gdbarch *gdbarch, | |
1458 | iterate_over_regset_sections_cb *cb, | |
1459 | void *cb_data, | |
1460 | const struct regcache *regcache) | |
5f814c3b | 1461 | { |
9845a0b5 AA |
1462 | cb (".reg", SCORE7_LINUX_SIZEOF_GREGSET, &score7_linux_gregset, |
1463 | NULL, cb_data); | |
5f814c3b DL |
1464 | } |
1465 | ||
27fd2f50 Q |
1466 | static struct gdbarch * |
1467 | score_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) | |
1468 | { | |
1469 | struct gdbarch *gdbarch; | |
5f814c3b | 1470 | target_mach = info.bfd_arch_info->mach; |
27fd2f50 Q |
1471 | |
1472 | arches = gdbarch_list_lookup_by_info (arches, &info); | |
1473 | if (arches != NULL) | |
1474 | { | |
1475 | return (arches->gdbarch); | |
1476 | } | |
8fea3224 | 1477 | gdbarch = gdbarch_alloc (&info, NULL); |
27fd2f50 Q |
1478 | |
1479 | set_gdbarch_short_bit (gdbarch, 16); | |
1480 | set_gdbarch_int_bit (gdbarch, 32); | |
1481 | set_gdbarch_float_bit (gdbarch, 32); | |
1482 | set_gdbarch_double_bit (gdbarch, 64); | |
1483 | set_gdbarch_long_double_bit (gdbarch, 64); | |
5f814c3b | 1484 | #if WITH_SIM |
27fd2f50 | 1485 | set_gdbarch_register_sim_regno (gdbarch, score_register_sim_regno); |
5f814c3b | 1486 | #endif |
27fd2f50 Q |
1487 | set_gdbarch_pc_regnum (gdbarch, SCORE_PC_REGNUM); |
1488 | set_gdbarch_sp_regnum (gdbarch, SCORE_SP_REGNUM); | |
c378eb4e MS |
1489 | set_gdbarch_adjust_breakpoint_address (gdbarch, |
1490 | score_adjust_breakpoint_address); | |
27fd2f50 Q |
1491 | set_gdbarch_register_type (gdbarch, score_register_type); |
1492 | set_gdbarch_frame_align (gdbarch, score_frame_align); | |
1493 | set_gdbarch_inner_than (gdbarch, core_addr_lessthan); | |
30244cd8 | 1494 | set_gdbarch_unwind_sp (gdbarch, score_unwind_sp); |
5f814c3b | 1495 | set_gdbarch_unwind_pc (gdbarch, score_unwind_pc); |
27fd2f50 | 1496 | set_gdbarch_print_insn (gdbarch, score_print_insn); |
5f814c3b DL |
1497 | |
1498 | switch (target_mach) | |
1499 | { | |
1500 | case bfd_mach_score7: | |
1501 | set_gdbarch_breakpoint_from_pc (gdbarch, score7_breakpoint_from_pc); | |
1502 | set_gdbarch_skip_prologue (gdbarch, score7_skip_prologue); | |
c9cf6e20 MG |
1503 | set_gdbarch_stack_frame_destroyed_p (gdbarch, |
1504 | score7_stack_frame_destroyed_p); | |
5f814c3b DL |
1505 | set_gdbarch_register_name (gdbarch, score7_register_name); |
1506 | set_gdbarch_num_regs (gdbarch, SCORE7_NUM_REGS); | |
c378eb4e | 1507 | /* Core file support. */ |
9845a0b5 AA |
1508 | set_gdbarch_iterate_over_regset_sections |
1509 | (gdbarch, score7_linux_iterate_over_regset_sections); | |
5f814c3b DL |
1510 | break; |
1511 | ||
1512 | case bfd_mach_score3: | |
1513 | set_gdbarch_breakpoint_from_pc (gdbarch, score3_breakpoint_from_pc); | |
1514 | set_gdbarch_skip_prologue (gdbarch, score3_skip_prologue); | |
c9cf6e20 MG |
1515 | set_gdbarch_stack_frame_destroyed_p (gdbarch, |
1516 | score3_stack_frame_destroyed_p); | |
5f814c3b DL |
1517 | set_gdbarch_register_name (gdbarch, score3_register_name); |
1518 | set_gdbarch_num_regs (gdbarch, SCORE3_NUM_REGS); | |
1519 | break; | |
1520 | } | |
5e29c264 Q |
1521 | |
1522 | /* Watchpoint hooks. */ | |
1523 | set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1); | |
1524 | ||
1525 | /* Dummy frame hooks. */ | |
27fd2f50 | 1526 | set_gdbarch_return_value (gdbarch, score_return_value); |
5e29c264 | 1527 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
94afd7a6 | 1528 | set_gdbarch_dummy_id (gdbarch, score_dummy_id); |
27fd2f50 Q |
1529 | set_gdbarch_push_dummy_call (gdbarch, score_push_dummy_call); |
1530 | ||
5e29c264 | 1531 | /* Normal frame hooks. */ |
94afd7a6 | 1532 | dwarf2_append_unwinders (gdbarch); |
27fd2f50 | 1533 | frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer); |
94afd7a6 | 1534 | frame_unwind_append_unwinder (gdbarch, &score_prologue_unwind); |
27fd2f50 Q |
1535 | frame_base_append_sniffer (gdbarch, score_prologue_frame_base_sniffer); |
1536 | ||
1537 | return gdbarch; | |
1538 | } | |
1539 | ||
1540 | extern initialize_file_ftype _initialize_score_tdep; | |
1541 | ||
1542 | void | |
1543 | _initialize_score_tdep (void) | |
1544 | { | |
1545 | gdbarch_register (bfd_arch_score, score_gdbarch_init, NULL); | |
1546 | } |