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 | ||
28e7fd62 | 4 | Copyright (C) 2006-2013 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" | |
25 | #include "gdb_assert.h" | |
26 | #include "inferior.h" | |
27 | #include "symtab.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcore.h" | |
30 | #include "target.h" | |
31 | #include "arch-utils.h" | |
32 | #include "regcache.h" | |
5f814c3b | 33 | #include "regset.h" |
27fd2f50 Q |
34 | #include "dis-asm.h" |
35 | #include "frame-unwind.h" | |
36 | #include "frame-base.h" | |
37 | #include "trad-frame.h" | |
38 | #include "dwarf2-frame.h" | |
39 | #include "score-tdep.h" | |
40 | ||
5f814c3b DL |
41 | #define G_FLD(_i,_ms,_ls) \ |
42 | ((unsigned)((_i) << (31 - (_ms))) >> (31 - (_ms) + (_ls))) | |
27fd2f50 Q |
43 | |
44 | typedef struct{ | |
c378eb4e MS |
45 | unsigned long long v; |
46 | unsigned long long raw; | |
47 | unsigned int len; | |
27fd2f50 Q |
48 | }inst_t; |
49 | ||
50 | struct score_frame_cache | |
51 | { | |
52 | CORE_ADDR base; | |
5e29c264 | 53 | CORE_ADDR fp; |
27fd2f50 Q |
54 | struct trad_frame_saved_reg *saved_regs; |
55 | }; | |
56 | ||
5f814c3b | 57 | static int target_mach = bfd_mach_score7; |
5e29c264 | 58 | |
27fd2f50 Q |
59 | static struct type * |
60 | score_register_type (struct gdbarch *gdbarch, int regnum) | |
61 | { | |
5f814c3b | 62 | gdb_assert (regnum >= 0 |
c378eb4e MS |
63 | && regnum < ((target_mach == bfd_mach_score7) |
64 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
df4df182 | 65 | return builtin_type (gdbarch)->builtin_uint32; |
27fd2f50 Q |
66 | } |
67 | ||
5f814c3b DL |
68 | static CORE_ADDR |
69 | score_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame) | |
70 | { | |
71 | return frame_unwind_register_unsigned (next_frame, SCORE_SP_REGNUM); | |
72 | } | |
73 | ||
27fd2f50 | 74 | static CORE_ADDR |
30244cd8 | 75 | score_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame) |
27fd2f50 | 76 | { |
30244cd8 | 77 | return frame_unwind_register_unsigned (next_frame, SCORE_PC_REGNUM); |
27fd2f50 Q |
78 | } |
79 | ||
5f814c3b DL |
80 | static const char * |
81 | score7_register_name (struct gdbarch *gdbarch, int regnum) | |
27fd2f50 | 82 | { |
5f814c3b DL |
83 | const char *score_register_names[] = { |
84 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
85 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
86 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
87 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
88 | ||
89 | "PSR", "COND", "ECR", "EXCPVEC", "CCR", | |
90 | "EPC", "EMA", "TLBLOCK", "TLBPT", "PEADDR", | |
91 | "TLBRPT", "PEVN", "PECTX", "LIMPFN", "LDMPFN", | |
92 | "PREV", "DREG", "PC", "DSAVE", "COUNTER", | |
93 | "LDCR", "STCR", "CEH", "CEL", | |
94 | }; | |
95 | ||
96 | gdb_assert (regnum >= 0 && regnum < SCORE7_NUM_REGS); | |
97 | return score_register_names[regnum]; | |
27fd2f50 Q |
98 | } |
99 | ||
100 | static const char * | |
5f814c3b | 101 | score3_register_name (struct gdbarch *gdbarch, int regnum) |
27fd2f50 Q |
102 | { |
103 | const char *score_register_names[] = { | |
104 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", | |
105 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", | |
106 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
107 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
108 | ||
5f814c3b DL |
109 | "PSR", "COND", "ECR", "EXCPVEC", "CCR", |
110 | "EPC", "EMA", "PREV", "DREG", "DSAVE", | |
111 | "COUNTER", "LDCR", "STCR", "CEH", "CEL", | |
112 | "", "", "PC", | |
27fd2f50 Q |
113 | }; |
114 | ||
5f814c3b | 115 | gdb_assert (regnum >= 0 && regnum < SCORE3_NUM_REGS); |
27fd2f50 Q |
116 | return score_register_names[regnum]; |
117 | } | |
118 | ||
5f814c3b | 119 | #if WITH_SIM |
27fd2f50 | 120 | static int |
e7faf938 | 121 | score_register_sim_regno (struct gdbarch *gdbarch, int regnum) |
27fd2f50 | 122 | { |
5f814c3b | 123 | gdb_assert (regnum >= 0 |
c378eb4e MS |
124 | && regnum < ((target_mach == bfd_mach_score7) |
125 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
27fd2f50 Q |
126 | return regnum; |
127 | } | |
5f814c3b | 128 | #endif |
27fd2f50 Q |
129 | |
130 | static int | |
131 | score_print_insn (bfd_vma memaddr, struct disassemble_info *info) | |
132 | { | |
f52cb1b8 | 133 | if (info->endian == BFD_ENDIAN_BIG) |
27fd2f50 Q |
134 | return print_insn_big_score (memaddr, info); |
135 | else | |
136 | return print_insn_little_score (memaddr, info); | |
137 | } | |
138 | ||
5f814c3b | 139 | static inst_t * |
e362b510 | 140 | score7_fetch_inst (struct gdbarch *gdbarch, CORE_ADDR addr, gdb_byte *memblock) |
5f814c3b DL |
141 | { |
142 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
143 | static inst_t inst = { 0, 0, 0 }; | |
e362b510 | 144 | gdb_byte buf[SCORE_INSTLEN] = { 0 }; |
5f814c3b DL |
145 | int big; |
146 | int ret; | |
147 | ||
148 | if (target_has_execution && memblock != NULL) | |
149 | { | |
150 | /* Fetch instruction from local MEMBLOCK. */ | |
151 | memcpy (buf, memblock, SCORE_INSTLEN); | |
152 | } | |
153 | else | |
154 | { | |
155 | /* Fetch instruction from target. */ | |
156 | ret = target_read_memory (addr & ~0x3, buf, SCORE_INSTLEN); | |
157 | if (ret) | |
158 | { | |
a73c6dcd | 159 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
160 | __FILE__, __LINE__); |
161 | return 0; | |
162 | } | |
163 | } | |
164 | ||
165 | inst.raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order); | |
166 | inst.len = (inst.raw & 0x80008000) ? 4 : 2; | |
167 | inst.v = ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF); | |
168 | big = (byte_order == BFD_ENDIAN_BIG); | |
169 | if (inst.len == 2) | |
170 | { | |
171 | if (big ^ ((addr & 0x2) == 2)) | |
172 | inst.v = G_FLD (inst.v, 29, 15); | |
173 | else | |
174 | inst.v = G_FLD (inst.v, 14, 0); | |
175 | } | |
176 | return &inst; | |
177 | } | |
178 | ||
179 | static inst_t * | |
180 | score3_adjust_pc_and_fetch_inst (CORE_ADDR *pcptr, int *lenptr, | |
181 | enum bfd_endian byte_order) | |
182 | { | |
183 | static inst_t inst = { 0, 0, 0 }; | |
184 | ||
185 | struct breakplace | |
186 | { | |
187 | int break_offset; | |
188 | int inst_len; | |
189 | }; | |
190 | /* raw table 1 (column 2, 3, 4) | |
191 | * 0 1 0 * # 2 | |
192 | * 0 1 1 0 # 3 | |
193 | 0 1 1 0 * # 6 | |
194 | table 2 (column 1, 2, 3) | |
195 | * 0 0 * * # 0, 4 | |
196 | 0 1 0 * * # 2 | |
197 | 1 1 0 * * # 6 | |
198 | */ | |
199 | ||
200 | static const struct breakplace bk_table[16] = | |
201 | { | |
202 | /* table 1 */ | |
203 | {0, 0}, | |
204 | {0, 0}, | |
205 | {0, 4}, | |
206 | {0, 6}, | |
207 | {0, 0}, | |
208 | {0, 0}, | |
209 | {-2, 6}, | |
210 | {0, 0}, | |
211 | /* table 2 */ | |
212 | {0, 2}, | |
213 | {0, 0}, | |
214 | {-2, 4}, | |
215 | {0, 0}, | |
216 | {0, 2}, | |
217 | {0, 0}, | |
218 | {-4, 6}, | |
219 | {0, 0} | |
220 | }; | |
221 | ||
222 | #define EXTRACT_LEN 2 | |
223 | CORE_ADDR adjust_pc = *pcptr & ~0x1; | |
5f814c3b DL |
224 | gdb_byte buf[5][EXTRACT_LEN] = |
225 | { | |
226 | {'\0', '\0'}, | |
227 | {'\0', '\0'}, | |
228 | {'\0', '\0'}, | |
229 | {'\0', '\0'}, | |
230 | {'\0', '\0'} | |
231 | }; | |
232 | int ret; | |
233 | unsigned int raw; | |
234 | unsigned int cbits = 0; | |
235 | int bk_index; | |
236 | int i, count; | |
237 | ||
238 | inst.v = 0; | |
239 | inst.raw = 0; | |
240 | inst.len = 0; | |
241 | ||
242 | adjust_pc -= 4; | |
243 | for (i = 0; i < 5; i++) | |
244 | { | |
245 | ret = target_read_memory (adjust_pc + 2 * i, buf[i], EXTRACT_LEN); | |
246 | if (ret != 0) | |
247 | { | |
248 | buf[i][0] = '\0'; | |
249 | buf[i][1] = '\0'; | |
250 | if (i == 2) | |
a73c6dcd | 251 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
252 | __FILE__, __LINE__); |
253 | } | |
254 | ||
255 | raw = extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order); | |
256 | cbits = (cbits << 1) | (raw >> 15); | |
257 | } | |
258 | adjust_pc += 4; | |
259 | ||
260 | if (cbits & 0x4) | |
261 | { | |
262 | /* table 1 */ | |
263 | cbits = (cbits >> 1) & 0x7; | |
264 | bk_index = cbits; | |
265 | } | |
266 | else | |
267 | { | |
268 | /* table 2 */ | |
269 | cbits = (cbits >> 2) & 0x7; | |
270 | bk_index = cbits + 8; | |
271 | } | |
272 | ||
273 | gdb_assert (!((bk_table[bk_index].break_offset == 0) | |
274 | && (bk_table[bk_index].inst_len == 0))); | |
275 | ||
276 | inst.len = bk_table[bk_index].inst_len; | |
277 | ||
278 | i = (bk_table[bk_index].break_offset + 4) / 2; | |
279 | count = inst.len / 2; | |
280 | for (; count > 0; i++, count--) | |
281 | { | |
282 | inst.raw = (inst.raw << 16) | |
283 | | extract_unsigned_integer (buf[i], EXTRACT_LEN, byte_order); | |
284 | } | |
285 | ||
286 | switch (inst.len) | |
287 | { | |
288 | case 2: | |
289 | inst.v = inst.raw & 0x7FFF; | |
290 | break; | |
291 | case 4: | |
292 | inst.v = ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF); | |
293 | break; | |
294 | case 6: | |
295 | inst.v = ((inst.raw >> 32 & 0x7FFF) << 30) | |
296 | | ((inst.raw >> 16 & 0x7FFF) << 15) | (inst.raw & 0x7FFF); | |
297 | break; | |
298 | } | |
299 | ||
300 | if (pcptr) | |
301 | *pcptr = adjust_pc + bk_table[bk_index].break_offset; | |
302 | if (lenptr) | |
303 | *lenptr = bk_table[bk_index].inst_len; | |
304 | ||
305 | #undef EXTRACT_LEN | |
306 | ||
307 | return &inst; | |
308 | } | |
309 | ||
27fd2f50 | 310 | static const gdb_byte * |
5f814c3b DL |
311 | score7_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, |
312 | int *lenptr) | |
27fd2f50 | 313 | { |
e17a4113 | 314 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
27fd2f50 Q |
315 | gdb_byte buf[SCORE_INSTLEN] = { 0 }; |
316 | int ret; | |
317 | unsigned int raw; | |
318 | ||
319 | if ((ret = target_read_memory (*pcptr & ~0x3, buf, SCORE_INSTLEN)) != 0) | |
320 | { | |
a73c6dcd | 321 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5e29c264 | 322 | __FILE__, __LINE__); |
27fd2f50 | 323 | } |
e17a4113 | 324 | raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order); |
27fd2f50 | 325 | |
e17a4113 | 326 | if (byte_order == BFD_ENDIAN_BIG) |
27fd2f50 Q |
327 | { |
328 | if (!(raw & 0x80008000)) | |
329 | { | |
330 | /* 16bits instruction. */ | |
331 | static gdb_byte big_breakpoint16[] = { 0x60, 0x02 }; | |
332 | *pcptr &= ~0x1; | |
333 | *lenptr = sizeof (big_breakpoint16); | |
334 | return big_breakpoint16; | |
335 | } | |
336 | else | |
337 | { | |
338 | /* 32bits instruction. */ | |
339 | static gdb_byte big_breakpoint32[] = { 0x80, 0x00, 0x80, 0x06 }; | |
340 | *pcptr &= ~0x3; | |
341 | *lenptr = sizeof (big_breakpoint32); | |
342 | return big_breakpoint32; | |
343 | } | |
344 | } | |
345 | else | |
346 | { | |
347 | if (!(raw & 0x80008000)) | |
348 | { | |
349 | /* 16bits instruction. */ | |
350 | static gdb_byte little_breakpoint16[] = { 0x02, 0x60 }; | |
351 | *pcptr &= ~0x1; | |
352 | *lenptr = sizeof (little_breakpoint16); | |
353 | return little_breakpoint16; | |
354 | } | |
355 | else | |
356 | { | |
357 | /* 32bits instruction. */ | |
358 | static gdb_byte little_breakpoint32[] = { 0x06, 0x80, 0x00, 0x80 }; | |
359 | *pcptr &= ~0x3; | |
360 | *lenptr = sizeof (little_breakpoint32); | |
361 | return little_breakpoint32; | |
362 | } | |
363 | } | |
364 | } | |
365 | ||
5f814c3b DL |
366 | static const gdb_byte * |
367 | score3_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, | |
368 | int *lenptr) | |
369 | { | |
370 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
371 | CORE_ADDR adjust_pc = *pcptr; | |
372 | int len; | |
373 | static gdb_byte score_break_insns[6][6] = { | |
374 | /* The following three instructions are big endian. */ | |
375 | { 0x00, 0x20 }, | |
376 | { 0x80, 0x00, 0x00, 0x06 }, | |
377 | { 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 }, | |
378 | /* The following three instructions are little endian. */ | |
379 | { 0x20, 0x00 }, | |
380 | { 0x00, 0x80, 0x06, 0x00 }, | |
381 | { 0x00, 0x80, 0x00, 0x80, 0x00, 0x00 }}; | |
382 | ||
383 | gdb_byte *p = NULL; | |
384 | int index = 0; | |
385 | ||
386 | score3_adjust_pc_and_fetch_inst (&adjust_pc, &len, byte_order); | |
387 | ||
388 | index = ((byte_order == BFD_ENDIAN_BIG) ? 0 : 3) + (len / 2 - 1); | |
389 | p = score_break_insns[index]; | |
390 | ||
391 | *pcptr = adjust_pc; | |
392 | *lenptr = len; | |
393 | ||
394 | return p; | |
395 | } | |
396 | ||
397 | static CORE_ADDR | |
398 | score_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr) | |
399 | { | |
400 | CORE_ADDR adjust_pc = bpaddr; | |
401 | ||
402 | if (target_mach == bfd_mach_score3) | |
403 | score3_adjust_pc_and_fetch_inst (&adjust_pc, NULL, | |
404 | gdbarch_byte_order (gdbarch)); | |
405 | else | |
406 | adjust_pc = align_down (adjust_pc, 2); | |
407 | ||
408 | return adjust_pc; | |
409 | } | |
410 | ||
27fd2f50 Q |
411 | static CORE_ADDR |
412 | score_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr) | |
413 | { | |
414 | return align_down (addr, 16); | |
415 | } | |
416 | ||
417 | static void | |
418 | score_xfer_register (struct regcache *regcache, int regnum, int length, | |
419 | enum bfd_endian endian, gdb_byte *readbuf, | |
420 | const gdb_byte *writebuf, int buf_offset) | |
421 | { | |
422 | int reg_offset = 0; | |
5f814c3b | 423 | gdb_assert (regnum >= 0 |
c378eb4e MS |
424 | && regnum < ((target_mach == bfd_mach_score7) |
425 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
27fd2f50 Q |
426 | |
427 | switch (endian) | |
428 | { | |
429 | case BFD_ENDIAN_BIG: | |
430 | reg_offset = SCORE_REGSIZE - length; | |
431 | break; | |
432 | case BFD_ENDIAN_LITTLE: | |
433 | reg_offset = 0; | |
434 | break; | |
435 | case BFD_ENDIAN_UNKNOWN: | |
436 | reg_offset = 0; | |
437 | break; | |
438 | default: | |
a73c6dcd | 439 | error (_("Error: score_xfer_register in file:%s, line:%d!"), |
5e29c264 | 440 | __FILE__, __LINE__); |
27fd2f50 Q |
441 | } |
442 | ||
443 | if (readbuf != NULL) | |
444 | regcache_cooked_read_part (regcache, regnum, reg_offset, length, | |
445 | readbuf + buf_offset); | |
446 | if (writebuf != NULL) | |
447 | regcache_cooked_write_part (regcache, regnum, reg_offset, length, | |
448 | writebuf + buf_offset); | |
449 | } | |
450 | ||
451 | static enum return_value_convention | |
6a3a010b | 452 | score_return_value (struct gdbarch *gdbarch, struct value *function, |
5f814c3b | 453 | struct type *type, struct regcache *regcache, |
27fd2f50 Q |
454 | gdb_byte * readbuf, const gdb_byte * writebuf) |
455 | { | |
456 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
457 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
458 | || TYPE_CODE (type) == TYPE_CODE_ARRAY) | |
459 | return RETURN_VALUE_STRUCT_CONVENTION; | |
460 | else | |
461 | { | |
462 | int offset; | |
463 | int regnum; | |
464 | for (offset = 0, regnum = SCORE_A0_REGNUM; | |
465 | offset < TYPE_LENGTH (type); | |
466 | offset += SCORE_REGSIZE, regnum++) | |
467 | { | |
468 | int xfer = SCORE_REGSIZE; | |
c378eb4e | 469 | |
27fd2f50 Q |
470 | if (offset + xfer > TYPE_LENGTH (type)) |
471 | xfer = TYPE_LENGTH (type) - offset; | |
4c6b5505 | 472 | score_xfer_register (regcache, regnum, xfer, |
5f814c3b | 473 | gdbarch_byte_order(gdbarch), |
27fd2f50 Q |
474 | readbuf, writebuf, offset); |
475 | } | |
476 | return RETURN_VALUE_REGISTER_CONVENTION; | |
477 | } | |
478 | } | |
479 | ||
480 | static struct frame_id | |
94afd7a6 | 481 | score_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) |
27fd2f50 | 482 | { |
c378eb4e MS |
483 | return frame_id_build (get_frame_register_unsigned (this_frame, |
484 | SCORE_SP_REGNUM), | |
485 | get_frame_pc (this_frame)); | |
27fd2f50 Q |
486 | } |
487 | ||
488 | static int | |
489 | score_type_needs_double_align (struct type *type) | |
490 | { | |
491 | enum type_code typecode = TYPE_CODE (type); | |
492 | ||
5e29c264 Q |
493 | if ((typecode == TYPE_CODE_INT && TYPE_LENGTH (type) == 8) |
494 | || (typecode == TYPE_CODE_FLT && TYPE_LENGTH (type) == 8)) | |
27fd2f50 Q |
495 | return 1; |
496 | else if (typecode == TYPE_CODE_STRUCT || typecode == TYPE_CODE_UNION) | |
497 | { | |
498 | int i, n; | |
499 | ||
500 | n = TYPE_NFIELDS (type); | |
501 | for (i = 0; i < n; i++) | |
502 | if (score_type_needs_double_align (TYPE_FIELD_TYPE (type, i))) | |
503 | return 1; | |
504 | return 0; | |
505 | } | |
506 | return 0; | |
507 | } | |
508 | ||
509 | static CORE_ADDR | |
510 | score_push_dummy_call (struct gdbarch *gdbarch, struct value *function, | |
511 | struct regcache *regcache, CORE_ADDR bp_addr, | |
512 | int nargs, struct value **args, CORE_ADDR sp, | |
513 | int struct_return, CORE_ADDR struct_addr) | |
514 | { | |
e17a4113 | 515 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
27fd2f50 Q |
516 | int argnum; |
517 | int argreg; | |
518 | int arglen = 0; | |
519 | CORE_ADDR stack_offset = 0; | |
520 | CORE_ADDR addr = 0; | |
521 | ||
522 | /* Step 1, Save RA. */ | |
523 | regcache_cooked_write_unsigned (regcache, SCORE_RA_REGNUM, bp_addr); | |
524 | ||
525 | /* Step 2, Make space on the stack for the args. */ | |
526 | struct_addr = align_down (struct_addr, 16); | |
527 | sp = align_down (sp, 16); | |
528 | for (argnum = 0; argnum < nargs; argnum++) | |
529 | arglen += align_up (TYPE_LENGTH (value_type (args[argnum])), | |
530 | SCORE_REGSIZE); | |
531 | sp -= align_up (arglen, 16); | |
532 | ||
533 | argreg = SCORE_BEGIN_ARG_REGNUM; | |
534 | ||
5e29c264 Q |
535 | /* Step 3, Check if struct return then save the struct address to |
536 | r4 and increase the stack_offset by 4. */ | |
27fd2f50 Q |
537 | if (struct_return) |
538 | { | |
539 | regcache_cooked_write_unsigned (regcache, argreg++, struct_addr); | |
540 | stack_offset += SCORE_REGSIZE; | |
541 | } | |
542 | ||
543 | /* Step 4, Load arguments: | |
5e29c264 Q |
544 | If arg length is too long (> 4 bytes), then split the arg and |
545 | save every parts. */ | |
27fd2f50 Q |
546 | for (argnum = 0; argnum < nargs; argnum++) |
547 | { | |
548 | struct value *arg = args[argnum]; | |
549 | struct type *arg_type = check_typedef (value_type (arg)); | |
27fd2f50 Q |
550 | enum type_code typecode = TYPE_CODE (arg_type); |
551 | const gdb_byte *val = value_contents (arg); | |
552 | int downward_offset = 0; | |
1cfd2c3e JB |
553 | int odd_sized_struct_p; |
554 | int arg_last_part_p = 0; | |
27fd2f50 | 555 | |
1cfd2c3e JB |
556 | arglen = TYPE_LENGTH (arg_type); |
557 | odd_sized_struct_p = (arglen > SCORE_REGSIZE | |
5e29c264 | 558 | && arglen % SCORE_REGSIZE != 0); |
27fd2f50 Q |
559 | |
560 | /* If a arg should be aligned to 8 bytes (long long or double), | |
561 | the value should be put to even register numbers. */ | |
562 | if (score_type_needs_double_align (arg_type)) | |
563 | { | |
564 | if (argreg & 1) | |
565 | argreg++; | |
566 | } | |
567 | ||
568 | /* If sizeof a block < SCORE_REGSIZE, then Score GCC will chose | |
569 | the default "downward"/"upward" method: | |
570 | ||
571 | Example: | |
572 | ||
573 | struct struc | |
574 | { | |
575 | char a; char b; char c; | |
576 | } s = {'a', 'b', 'c'}; | |
577 | ||
578 | Big endian: s = {X, 'a', 'b', 'c'} | |
579 | Little endian: s = {'a', 'b', 'c', X} | |
580 | ||
581 | Where X is a hole. */ | |
582 | ||
5f814c3b | 583 | if (gdbarch_byte_order(gdbarch) == BFD_ENDIAN_BIG |
27fd2f50 Q |
584 | && (typecode == TYPE_CODE_STRUCT |
585 | || typecode == TYPE_CODE_UNION) | |
586 | && argreg > SCORE_LAST_ARG_REGNUM | |
587 | && arglen < SCORE_REGSIZE) | |
588 | downward_offset += (SCORE_REGSIZE - arglen); | |
589 | ||
590 | while (arglen > 0) | |
591 | { | |
592 | int partial_len = arglen < SCORE_REGSIZE ? arglen : SCORE_REGSIZE; | |
e17a4113 | 593 | ULONGEST regval = extract_unsigned_integer (val, partial_len, |
5f814c3b | 594 | byte_order); |
27fd2f50 Q |
595 | |
596 | /* The last part of a arg should shift left when | |
4c6b5505 | 597 | gdbarch_byte_order is BFD_ENDIAN_BIG. */ |
5f814c3b | 598 | if (byte_order == BFD_ENDIAN_BIG |
27fd2f50 Q |
599 | && arg_last_part_p == 1 |
600 | && (typecode == TYPE_CODE_STRUCT | |
601 | || typecode == TYPE_CODE_UNION)) | |
602 | regval <<= ((SCORE_REGSIZE - partial_len) * TARGET_CHAR_BIT); | |
603 | ||
604 | /* Always increase the stack_offset and save args to stack. */ | |
605 | addr = sp + stack_offset + downward_offset; | |
606 | write_memory (addr, val, partial_len); | |
607 | ||
608 | if (argreg <= SCORE_LAST_ARG_REGNUM) | |
609 | { | |
610 | regcache_cooked_write_unsigned (regcache, argreg++, regval); | |
611 | if (arglen > SCORE_REGSIZE && arglen < SCORE_REGSIZE * 2) | |
612 | arg_last_part_p = 1; | |
613 | } | |
614 | ||
615 | val += partial_len; | |
616 | arglen -= partial_len; | |
617 | stack_offset += align_up (partial_len, SCORE_REGSIZE); | |
618 | } | |
619 | } | |
620 | ||
621 | /* Step 5, Save SP. */ | |
622 | regcache_cooked_write_unsigned (regcache, SCORE_SP_REGNUM, sp); | |
623 | ||
624 | return sp; | |
625 | } | |
626 | ||
27fd2f50 | 627 | static CORE_ADDR |
5f814c3b | 628 | score7_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) |
27fd2f50 Q |
629 | { |
630 | CORE_ADDR cpc = pc; | |
631 | int iscan = 32, stack_sub = 0; | |
632 | while (iscan-- > 0) | |
633 | { | |
5f814c3b | 634 | inst_t *inst = score7_fetch_inst (gdbarch, cpc, NULL); |
27fd2f50 Q |
635 | if (!inst) |
636 | break; | |
5f814c3b | 637 | if ((inst->len == 4) && !stack_sub |
27fd2f50 Q |
638 | && (G_FLD (inst->v, 29, 25) == 0x1 |
639 | && G_FLD (inst->v, 24, 20) == 0x0)) | |
640 | { | |
641 | /* addi r0, offset */ | |
5f814c3b DL |
642 | stack_sub = cpc + SCORE_INSTLEN; |
643 | pc = cpc + SCORE_INSTLEN; | |
27fd2f50 | 644 | } |
5f814c3b DL |
645 | else if ((inst->len == 4) |
646 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
647 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
648 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
649 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
650 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
27fd2f50 Q |
651 | { |
652 | /* mv r2, r0 */ | |
653 | pc = cpc + SCORE_INSTLEN; | |
654 | break; | |
655 | } | |
5f814c3b DL |
656 | else if ((inst->len == 2) |
657 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
658 | && (G_FLD (inst->v, 11, 8) == 0x2) | |
659 | && (G_FLD (inst->v, 7, 4) == 0x0) | |
660 | && (G_FLD (inst->v, 3, 0) == 0x3)) | |
27fd2f50 Q |
661 | { |
662 | /* mv! r2, r0 */ | |
663 | pc = cpc + SCORE16_INSTLEN; | |
664 | break; | |
665 | } | |
5f814c3b | 666 | else if ((inst->len == 2) |
27fd2f50 Q |
667 | && ((G_FLD (inst->v, 14, 12) == 3) /* j15 form */ |
668 | || (G_FLD (inst->v, 14, 12) == 4) /* b15 form */ | |
669 | || (G_FLD (inst->v, 14, 12) == 0x0 | |
670 | && G_FLD (inst->v, 3, 0) == 0x4))) /* br! */ | |
671 | break; | |
5f814c3b | 672 | else if ((inst->len == 4) |
27fd2f50 Q |
673 | && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */ |
674 | || (G_FLD (inst->v, 29, 25) == 4) /* b32 form */ | |
675 | || (G_FLD (inst->v, 29, 25) == 0x0 | |
676 | && G_FLD (inst->v, 6, 1) == 0x4))) /* br */ | |
677 | break; | |
678 | ||
5f814c3b | 679 | cpc += (inst->len == 2) ? SCORE16_INSTLEN : SCORE_INSTLEN; |
27fd2f50 Q |
680 | } |
681 | return pc; | |
682 | } | |
683 | ||
5f814c3b DL |
684 | static CORE_ADDR |
685 | score3_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) | |
27fd2f50 | 686 | { |
5f814c3b DL |
687 | CORE_ADDR cpc = pc; |
688 | int iscan = 32, stack_sub = 0; | |
689 | while (iscan-- > 0) | |
690 | { | |
691 | inst_t *inst | |
c378eb4e MS |
692 | = score3_adjust_pc_and_fetch_inst (&cpc, NULL, |
693 | gdbarch_byte_order (gdbarch)); | |
27fd2f50 | 694 | |
5f814c3b DL |
695 | if (!inst) |
696 | break; | |
697 | if (inst->len == 4 && !stack_sub | |
698 | && (G_FLD (inst->v, 29, 25) == 0x1) | |
699 | && (G_FLD (inst->v, 19, 17) == 0x0) | |
700 | && (G_FLD (inst->v, 24, 20) == 0x0)) | |
701 | { | |
702 | /* addi r0, offset */ | |
703 | stack_sub = cpc + inst->len; | |
704 | pc = cpc + inst->len; | |
705 | } | |
706 | else if (inst->len == 4 | |
707 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
708 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
709 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
710 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
711 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
712 | { | |
713 | /* mv r2, r0 */ | |
714 | pc = cpc + inst->len; | |
715 | break; | |
716 | } | |
717 | else if ((inst->len == 2) | |
718 | && (G_FLD (inst->v, 14, 10) == 0x10) | |
719 | && (G_FLD (inst->v, 9, 5) == 0x2) | |
720 | && (G_FLD (inst->v, 4, 0) == 0x0)) | |
721 | { | |
722 | /* mv! r2, r0 */ | |
723 | pc = cpc + inst->len; | |
724 | break; | |
725 | } | |
726 | else if (inst->len == 2 | |
727 | && ((G_FLD (inst->v, 14, 12) == 3) /* b15 form */ | |
728 | || (G_FLD (inst->v, 14, 12) == 0x0 | |
729 | && G_FLD (inst->v, 11, 5) == 0x4))) /* br! */ | |
730 | break; | |
731 | else if (inst->len == 4 | |
732 | && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */ | |
733 | || (G_FLD (inst->v, 29, 25) == 4))) /* b32 form */ | |
734 | break; | |
735 | ||
736 | cpc += inst->len; | |
737 | } | |
738 | return pc; | |
739 | } | |
740 | ||
741 | static int | |
742 | score7_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc) | |
743 | { | |
744 | inst_t *inst = score7_fetch_inst (gdbarch, cur_pc, NULL); | |
745 | ||
746 | if (inst->v == 0x23) | |
747 | return 1; /* mv! r0, r2 */ | |
748 | else if (G_FLD (inst->v, 14, 12) == 0x2 | |
749 | && G_FLD (inst->v, 3, 0) == 0xa) | |
750 | return 1; /* pop! */ | |
27fd2f50 Q |
751 | else if (G_FLD (inst->v, 14, 12) == 0x0 |
752 | && G_FLD (inst->v, 7, 0) == 0x34) | |
753 | return 1; /* br! r3 */ | |
754 | else if (G_FLD (inst->v, 29, 15) == 0x2 | |
755 | && G_FLD (inst->v, 6, 1) == 0x2b) | |
756 | return 1; /* mv r0, r2 */ | |
757 | else if (G_FLD (inst->v, 29, 25) == 0x0 | |
758 | && G_FLD (inst->v, 6, 1) == 0x4 | |
759 | && G_FLD (inst->v, 19, 15) == 0x3) | |
760 | return 1; /* br r3 */ | |
761 | else | |
762 | return 0; | |
763 | } | |
764 | ||
5f814c3b DL |
765 | static int |
766 | score3_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc) | |
767 | { | |
768 | CORE_ADDR pc = cur_pc; | |
769 | inst_t *inst | |
c378eb4e MS |
770 | = score3_adjust_pc_and_fetch_inst (&pc, NULL, |
771 | gdbarch_byte_order (gdbarch)); | |
5f814c3b DL |
772 | |
773 | if (inst->len == 2 | |
774 | && (G_FLD (inst->v, 14, 10) == 0x10) | |
775 | && (G_FLD (inst->v, 9, 5) == 0x0) | |
776 | && (G_FLD (inst->v, 4, 0) == 0x2)) | |
777 | return 1; /* mv! r0, r2 */ | |
778 | else if (inst->len == 4 | |
779 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
780 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
781 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
782 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
783 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
784 | return 1; /* mv r0, r2 */ | |
785 | else if (inst->len == 2 | |
786 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
787 | && (G_FLD (inst->v, 11, 5) == 0x2)) | |
788 | return 1; /* pop! */ | |
789 | else if (inst->len == 2 | |
790 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
791 | && (G_FLD (inst->v, 11, 7) == 0x0) | |
792 | && (G_FLD (inst->v, 6, 5) == 0x2)) | |
793 | return 1; /* rpop! */ | |
794 | else if (inst->len == 2 | |
795 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
796 | && (G_FLD (inst->v, 11, 5) == 0x4) | |
797 | && (G_FLD (inst->v, 4, 0) == 0x3)) | |
798 | return 1; /* br! r3 */ | |
799 | else if (inst->len == 4 | |
800 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
801 | && (G_FLD (inst->v, 24, 20) == 0x0) | |
802 | && (G_FLD (inst->v, 19, 15) == 0x3) | |
803 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
804 | && (G_FLD (inst->v, 9, 0) == 0x8)) | |
805 | return 1; /* br r3 */ | |
806 | else | |
807 | return 0; | |
808 | } | |
809 | ||
e362b510 | 810 | static gdb_byte * |
5f814c3b DL |
811 | score7_malloc_and_get_memblock (CORE_ADDR addr, CORE_ADDR size) |
812 | { | |
813 | int ret; | |
e362b510 | 814 | gdb_byte *memblock = NULL; |
5f814c3b DL |
815 | |
816 | if (size < 0) | |
817 | { | |
a73c6dcd | 818 | error (_("Error: malloc size < 0 in file:%s, line:%d!"), |
5f814c3b DL |
819 | __FILE__, __LINE__); |
820 | return NULL; | |
821 | } | |
822 | else if (size == 0) | |
823 | return NULL; | |
824 | ||
e362b510 | 825 | memblock = xmalloc (size); |
5f814c3b DL |
826 | memset (memblock, 0, size); |
827 | ret = target_read_memory (addr & ~0x3, memblock, size); | |
828 | if (ret) | |
829 | { | |
a73c6dcd | 830 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
831 | __FILE__, __LINE__); |
832 | return NULL; | |
833 | } | |
834 | return memblock; | |
835 | } | |
836 | ||
27fd2f50 | 837 | static void |
948f8e3d | 838 | score7_free_memblock (gdb_byte *memblock) |
5f814c3b DL |
839 | { |
840 | xfree (memblock); | |
841 | } | |
842 | ||
843 | static void | |
e362b510 | 844 | score7_adjust_memblock_ptr (gdb_byte **memblock, CORE_ADDR prev_pc, |
5f814c3b DL |
845 | CORE_ADDR cur_pc) |
846 | { | |
847 | if (prev_pc == -1) | |
848 | { | |
849 | /* First time call this function, do nothing. */ | |
850 | } | |
851 | else if (cur_pc - prev_pc == 2 && (cur_pc & 0x3) == 0) | |
852 | { | |
853 | /* First 16-bit instruction, then 32-bit instruction. */ | |
854 | *memblock += SCORE_INSTLEN; | |
855 | } | |
856 | else if (cur_pc - prev_pc == 4) | |
857 | { | |
858 | /* Is 32-bit instruction, increase MEMBLOCK by 4. */ | |
859 | *memblock += SCORE_INSTLEN; | |
860 | } | |
861 | } | |
862 | ||
863 | static void | |
864 | score7_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc, | |
94afd7a6 | 865 | struct frame_info *this_frame, |
27fd2f50 Q |
866 | struct score_frame_cache *this_cache) |
867 | { | |
94afd7a6 | 868 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
27fd2f50 | 869 | CORE_ADDR sp; |
5e29c264 | 870 | CORE_ADDR fp; |
27fd2f50 Q |
871 | CORE_ADDR cur_pc = startaddr; |
872 | ||
873 | int sp_offset = 0; | |
874 | int ra_offset = 0; | |
875 | int fp_offset = 0; | |
876 | int ra_offset_p = 0; | |
877 | int fp_offset_p = 0; | |
878 | int inst_len = 0; | |
879 | ||
e362b510 PA |
880 | gdb_byte *memblock = NULL; |
881 | gdb_byte *memblock_ptr = NULL; | |
5e29c264 Q |
882 | CORE_ADDR prev_pc = -1; |
883 | ||
884 | /* Allocate MEMBLOCK if PC - STARTADDR > 0. */ | |
885 | memblock_ptr = memblock = | |
5f814c3b | 886 | score7_malloc_and_get_memblock (startaddr, pc - startaddr); |
5e29c264 | 887 | |
94afd7a6 UW |
888 | sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM); |
889 | fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM); | |
27fd2f50 | 890 | |
5e29c264 | 891 | for (; cur_pc < pc; prev_pc = cur_pc, cur_pc += inst_len) |
27fd2f50 | 892 | { |
5e29c264 Q |
893 | inst_t *inst = NULL; |
894 | if (memblock != NULL) | |
895 | { | |
896 | /* Reading memory block from target succefully and got all | |
897 | the instructions(from STARTADDR to PC) needed. */ | |
5f814c3b DL |
898 | score7_adjust_memblock_ptr (&memblock, prev_pc, cur_pc); |
899 | inst = score7_fetch_inst (gdbarch, cur_pc, memblock); | |
5e29c264 Q |
900 | } |
901 | else | |
902 | { | |
903 | /* Otherwise, we fetch 4 bytes from target, and GDB also | |
904 | work correctly. */ | |
5f814c3b | 905 | inst = score7_fetch_inst (gdbarch, cur_pc, NULL); |
5e29c264 Q |
906 | } |
907 | ||
c378eb4e | 908 | /* FIXME: make a full-power prologue analyzer. */ |
5f814c3b | 909 | if (inst->len == 2) |
27fd2f50 Q |
910 | { |
911 | inst_len = SCORE16_INSTLEN; | |
912 | ||
913 | if (G_FLD (inst->v, 14, 12) == 0x2 | |
914 | && G_FLD (inst->v, 3, 0) == 0xe) | |
915 | { | |
916 | /* push! */ | |
917 | sp_offset += 4; | |
918 | ||
919 | if (G_FLD (inst->v, 11, 7) == 0x6 | |
920 | && ra_offset_p == 0) | |
921 | { | |
922 | /* push! r3, [r0] */ | |
923 | ra_offset = sp_offset; | |
924 | ra_offset_p = 1; | |
925 | } | |
926 | else if (G_FLD (inst->v, 11, 7) == 0x4 | |
927 | && fp_offset_p == 0) | |
928 | { | |
929 | /* push! r2, [r0] */ | |
930 | fp_offset = sp_offset; | |
931 | fp_offset_p = 1; | |
932 | } | |
933 | } | |
934 | else if (G_FLD (inst->v, 14, 12) == 0x2 | |
935 | && G_FLD (inst->v, 3, 0) == 0xa) | |
936 | { | |
937 | /* pop! */ | |
938 | sp_offset -= 4; | |
939 | } | |
940 | else if (G_FLD (inst->v, 14, 7) == 0xc1 | |
941 | && G_FLD (inst->v, 2, 0) == 0x0) | |
942 | { | |
943 | /* subei! r0, n */ | |
944 | sp_offset += (int) pow (2, G_FLD (inst->v, 6, 3)); | |
945 | } | |
946 | else if (G_FLD (inst->v, 14, 7) == 0xc0 | |
947 | && G_FLD (inst->v, 2, 0) == 0x0) | |
948 | { | |
949 | /* addei! r0, n */ | |
950 | sp_offset -= (int) pow (2, G_FLD (inst->v, 6, 3)); | |
951 | } | |
952 | } | |
953 | else | |
954 | { | |
955 | inst_len = SCORE_INSTLEN; | |
956 | ||
5f814c3b DL |
957 | if (G_FLD(inst->v, 29, 25) == 0x3 |
958 | && G_FLD(inst->v, 2, 0) == 0x4 | |
959 | && G_FLD(inst->v, 19, 15) == 0) | |
27fd2f50 | 960 | { |
5f814c3b DL |
961 | /* sw rD, [r0, offset]+ */ |
962 | sp_offset += SCORE_INSTLEN; | |
963 | ||
964 | if (G_FLD(inst->v, 24, 20) == 0x3) | |
965 | { | |
966 | /* rD = r3 */ | |
967 | if (ra_offset_p == 0) | |
968 | { | |
969 | ra_offset = sp_offset; | |
970 | ra_offset_p = 1; | |
971 | } | |
972 | } | |
973 | else if (G_FLD(inst->v, 24, 20) == 0x2) | |
974 | { | |
975 | /* rD = r2 */ | |
976 | if (fp_offset_p == 0) | |
977 | { | |
978 | fp_offset = sp_offset; | |
979 | fp_offset_p = 1; | |
980 | } | |
981 | } | |
27fd2f50 | 982 | } |
5f814c3b DL |
983 | else if (G_FLD(inst->v, 29, 25) == 0x14 |
984 | && G_FLD(inst->v, 19,15) == 0) | |
27fd2f50 | 985 | { |
5f814c3b DL |
986 | /* sw rD, [r0, offset] */ |
987 | if (G_FLD(inst->v, 24, 20) == 0x3) | |
988 | { | |
989 | /* rD = r3 */ | |
990 | ra_offset = sp_offset - G_FLD(inst->v, 14, 0); | |
991 | ra_offset_p = 1; | |
992 | } | |
993 | else if (G_FLD(inst->v, 24, 20) == 0x2) | |
994 | { | |
995 | /* rD = r2 */ | |
996 | fp_offset = sp_offset - G_FLD(inst->v, 14, 0); | |
997 | fp_offset_p = 1; | |
998 | } | |
27fd2f50 Q |
999 | } |
1000 | else if (G_FLD (inst->v, 29, 15) == 0x1c60 | |
1001 | && G_FLD (inst->v, 2, 0) == 0x0) | |
1002 | { | |
1003 | /* lw r3, [r0]+, 4 */ | |
1004 | sp_offset -= SCORE_INSTLEN; | |
1005 | ra_offset_p = 1; | |
1006 | } | |
1007 | else if (G_FLD (inst->v, 29, 15) == 0x1c40 | |
1008 | && G_FLD (inst->v, 2, 0) == 0x0) | |
1009 | { | |
1010 | /* lw r2, [r0]+, 4 */ | |
1011 | sp_offset -= SCORE_INSTLEN; | |
1012 | fp_offset_p = 1; | |
1013 | } | |
1014 | ||
1015 | else if (G_FLD (inst->v, 29, 17) == 0x100 | |
1016 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1017 | { | |
1018 | /* addi r0, -offset */ | |
1019 | sp_offset += 65536 - G_FLD (inst->v, 16, 1); | |
1020 | } | |
1021 | else if (G_FLD (inst->v, 29, 17) == 0x110 | |
1022 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1023 | { | |
1024 | /* addi r2, offset */ | |
1025 | if (pc - cur_pc > 4) | |
1026 | { | |
1027 | unsigned int save_v = inst->v; | |
1028 | inst_t *inst2 = | |
5f814c3b | 1029 | score7_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL); |
27fd2f50 | 1030 | if (inst2->v == 0x23) |
5e29c264 Q |
1031 | { |
1032 | /* mv! r0, r2 */ | |
1033 | sp_offset -= G_FLD (save_v, 16, 1); | |
1034 | } | |
27fd2f50 Q |
1035 | } |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | /* Save RA. */ | |
1041 | if (ra_offset_p == 1) | |
1042 | { | |
1043 | if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1) | |
1044 | this_cache->saved_regs[SCORE_PC_REGNUM].addr = | |
1045 | sp + sp_offset - ra_offset; | |
1046 | } | |
1047 | else | |
1048 | { | |
1049 | this_cache->saved_regs[SCORE_PC_REGNUM] = | |
1050 | this_cache->saved_regs[SCORE_RA_REGNUM]; | |
1051 | } | |
1052 | ||
1053 | /* Save FP. */ | |
1054 | if (fp_offset_p == 1) | |
1055 | { | |
1056 | if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1) | |
1057 | this_cache->saved_regs[SCORE_FP_REGNUM].addr = | |
1058 | sp + sp_offset - fp_offset; | |
1059 | } | |
1060 | ||
5e29c264 Q |
1061 | /* Save SP and FP. */ |
1062 | this_cache->base = sp + sp_offset; | |
1063 | this_cache->fp = fp; | |
1064 | ||
1065 | /* Don't forget to free MEMBLOCK if we allocated it. */ | |
1066 | if (memblock_ptr != NULL) | |
5f814c3b DL |
1067 | score7_free_memblock (memblock_ptr); |
1068 | } | |
1069 | ||
1070 | static void | |
1071 | score3_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc, | |
1072 | struct frame_info *this_frame, | |
1073 | struct score_frame_cache *this_cache) | |
1074 | { | |
1075 | CORE_ADDR sp; | |
1076 | CORE_ADDR fp; | |
1077 | CORE_ADDR cur_pc = startaddr; | |
c378eb4e MS |
1078 | enum bfd_endian byte_order |
1079 | = gdbarch_byte_order (get_frame_arch (this_frame)); | |
5f814c3b DL |
1080 | |
1081 | int sp_offset = 0; | |
1082 | int ra_offset = 0; | |
1083 | int fp_offset = 0; | |
1084 | int ra_offset_p = 0; | |
1085 | int fp_offset_p = 0; | |
1086 | int inst_len = 0; | |
1087 | ||
1088 | CORE_ADDR prev_pc = -1; | |
1089 | ||
1090 | sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM); | |
1091 | fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM); | |
1092 | ||
1093 | for (; cur_pc < pc; prev_pc = cur_pc, cur_pc += inst_len) | |
1094 | { | |
1095 | inst_t *inst = NULL; | |
1096 | ||
1097 | inst = score3_adjust_pc_and_fetch_inst (&cur_pc, &inst_len, byte_order); | |
1098 | ||
c378eb4e | 1099 | /* FIXME: make a full-power prologue analyzer. */ |
5f814c3b DL |
1100 | if (inst->len == 2) |
1101 | { | |
1102 | if (G_FLD (inst->v, 14, 12) == 0x0 | |
1103 | && G_FLD (inst->v, 11, 7) == 0x0 | |
1104 | && G_FLD (inst->v, 6, 5) == 0x3) | |
1105 | { | |
1106 | /* push! */ | |
1107 | sp_offset += 4; | |
1108 | ||
1109 | if (G_FLD (inst->v, 4, 0) == 0x3 | |
1110 | && ra_offset_p == 0) | |
1111 | { | |
1112 | /* push! r3, [r0] */ | |
1113 | ra_offset = sp_offset; | |
1114 | ra_offset_p = 1; | |
1115 | } | |
1116 | else if (G_FLD (inst->v, 4, 0) == 0x2 | |
1117 | && fp_offset_p == 0) | |
1118 | { | |
1119 | /* push! r2, [r0] */ | |
1120 | fp_offset = sp_offset; | |
1121 | fp_offset_p = 1; | |
1122 | } | |
1123 | } | |
1124 | else if (G_FLD (inst->v, 14, 12) == 0x6 | |
1125 | && G_FLD (inst->v, 11, 10) == 0x3) | |
1126 | { | |
1127 | /* rpush! */ | |
1128 | int start_r = G_FLD (inst->v, 9, 5); | |
1129 | int cnt = G_FLD (inst->v, 4, 0); | |
1130 | ||
1131 | if ((ra_offset_p == 0) | |
1132 | && (start_r <= SCORE_RA_REGNUM) | |
1133 | && (SCORE_RA_REGNUM < start_r + cnt)) | |
1134 | { | |
1135 | /* rpush! contains r3 */ | |
1136 | ra_offset_p = 1; | |
1137 | ra_offset = sp_offset + 4 * (SCORE_RA_REGNUM - start_r) + 4; | |
1138 | } | |
1139 | ||
1140 | if ((fp_offset_p == 0) | |
1141 | && (start_r <= SCORE_FP_REGNUM) | |
1142 | && (SCORE_FP_REGNUM < start_r + cnt)) | |
1143 | { | |
1144 | /* rpush! contains r2 */ | |
1145 | fp_offset_p = 1; | |
1146 | fp_offset = sp_offset + 4 * (SCORE_FP_REGNUM - start_r) + 4; | |
1147 | } | |
1148 | ||
1149 | sp_offset += 4 * cnt; | |
1150 | } | |
1151 | else if (G_FLD (inst->v, 14, 12) == 0x0 | |
1152 | && G_FLD (inst->v, 11, 7) == 0x0 | |
1153 | && G_FLD (inst->v, 6, 5) == 0x2) | |
1154 | { | |
1155 | /* pop! */ | |
1156 | sp_offset -= 4; | |
1157 | } | |
1158 | else if (G_FLD (inst->v, 14, 12) == 0x6 | |
1159 | && G_FLD (inst->v, 11, 10) == 0x2) | |
1160 | { | |
1161 | /* rpop! */ | |
1162 | sp_offset -= 4 * G_FLD (inst->v, 4, 0); | |
1163 | } | |
1164 | else if (G_FLD (inst->v, 14, 12) == 0x5 | |
1165 | && G_FLD (inst->v, 11, 10) == 0x3 | |
1166 | && G_FLD (inst->v, 9, 6) == 0x0) | |
1167 | { | |
1168 | /* addi! r0, -offset */ | |
1169 | int imm = G_FLD (inst->v, 5, 0); | |
1170 | if (imm >> 5) | |
1171 | imm = -(0x3F - imm + 1); | |
1172 | sp_offset -= imm; | |
1173 | } | |
1174 | else if (G_FLD (inst->v, 14, 12) == 0x5 | |
1175 | && G_FLD (inst->v, 11, 10) == 0x3 | |
1176 | && G_FLD (inst->v, 9, 6) == 0x2) | |
1177 | { | |
1178 | /* addi! r2, offset */ | |
1179 | if (pc - cur_pc >= 2) | |
1180 | { | |
1181 | unsigned int save_v = inst->v; | |
1182 | inst_t *inst2; | |
1183 | ||
1184 | cur_pc += inst->len; | |
c378eb4e MS |
1185 | inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL, |
1186 | byte_order); | |
5f814c3b DL |
1187 | |
1188 | if (inst2->len == 2 | |
1189 | && G_FLD (inst2->v, 14, 10) == 0x10 | |
1190 | && G_FLD (inst2->v, 9, 5) == 0x0 | |
1191 | && G_FLD (inst2->v, 4, 0) == 0x2) | |
1192 | { | |
1193 | /* mv! r0, r2 */ | |
1194 | int imm = G_FLD (inst->v, 5, 0); | |
1195 | if (imm >> 5) | |
1196 | imm = -(0x3F - imm + 1); | |
1197 | sp_offset -= imm; | |
1198 | } | |
1199 | } | |
1200 | } | |
1201 | } | |
1202 | else if (inst->len == 4) | |
1203 | { | |
1204 | if (G_FLD (inst->v, 29, 25) == 0x3 | |
1205 | && G_FLD (inst->v, 2, 0) == 0x4 | |
1206 | && G_FLD (inst->v, 24, 20) == 0x3 | |
1207 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1208 | { | |
1209 | /* sw r3, [r0, offset]+ */ | |
1210 | sp_offset += inst->len; | |
1211 | if (ra_offset_p == 0) | |
1212 | { | |
1213 | ra_offset = sp_offset; | |
1214 | ra_offset_p = 1; | |
1215 | } | |
1216 | } | |
1217 | else if (G_FLD (inst->v, 29, 25) == 0x3 | |
1218 | && G_FLD (inst->v, 2, 0) == 0x4 | |
1219 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1220 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1221 | { | |
1222 | /* sw r2, [r0, offset]+ */ | |
1223 | sp_offset += inst->len; | |
1224 | if (fp_offset_p == 0) | |
1225 | { | |
1226 | fp_offset = sp_offset; | |
1227 | fp_offset_p = 1; | |
1228 | } | |
1229 | } | |
1230 | else if (G_FLD (inst->v, 29, 25) == 0x7 | |
1231 | && G_FLD (inst->v, 2, 0) == 0x0 | |
1232 | && G_FLD (inst->v, 24, 20) == 0x3 | |
1233 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1234 | { | |
1235 | /* lw r3, [r0]+, 4 */ | |
1236 | sp_offset -= inst->len; | |
1237 | ra_offset_p = 1; | |
1238 | } | |
1239 | else if (G_FLD (inst->v, 29, 25) == 0x7 | |
1240 | && G_FLD (inst->v, 2, 0) == 0x0 | |
1241 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1242 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1243 | { | |
1244 | /* lw r2, [r0]+, 4 */ | |
1245 | sp_offset -= inst->len; | |
1246 | fp_offset_p = 1; | |
1247 | } | |
1248 | else if (G_FLD (inst->v, 29, 25) == 0x1 | |
1249 | && G_FLD (inst->v, 19, 17) == 0x0 | |
1250 | && G_FLD (inst->v, 24, 20) == 0x0 | |
1251 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1252 | { | |
1253 | /* addi r0, -offset */ | |
1254 | int imm = G_FLD (inst->v, 16, 1); | |
1255 | if (imm >> 15) | |
1256 | imm = -(0xFFFF - imm + 1); | |
1257 | sp_offset -= imm; | |
1258 | } | |
1259 | else if (G_FLD (inst->v, 29, 25) == 0x1 | |
1260 | && G_FLD (inst->v, 19, 17) == 0x0 | |
1261 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1262 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1263 | { | |
1264 | /* addi r2, offset */ | |
1265 | if (pc - cur_pc >= 2) | |
1266 | { | |
1267 | unsigned int save_v = inst->v; | |
1268 | inst_t *inst2; | |
1269 | ||
1270 | cur_pc += inst->len; | |
c378eb4e MS |
1271 | inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL, |
1272 | byte_order); | |
5f814c3b DL |
1273 | |
1274 | if (inst2->len == 2 | |
1275 | && G_FLD (inst2->v, 14, 10) == 0x10 | |
1276 | && G_FLD (inst2->v, 9, 5) == 0x0 | |
1277 | && G_FLD (inst2->v, 4, 0) == 0x2) | |
1278 | { | |
1279 | /* mv! r0, r2 */ | |
1280 | int imm = G_FLD (inst->v, 16, 1); | |
1281 | if (imm >> 15) | |
1282 | imm = -(0xFFFF - imm + 1); | |
1283 | sp_offset -= imm; | |
1284 | } | |
1285 | } | |
1286 | } | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | /* Save RA. */ | |
1291 | if (ra_offset_p == 1) | |
1292 | { | |
1293 | if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1) | |
1294 | this_cache->saved_regs[SCORE_PC_REGNUM].addr = | |
1295 | sp + sp_offset - ra_offset; | |
1296 | } | |
1297 | else | |
1298 | { | |
1299 | this_cache->saved_regs[SCORE_PC_REGNUM] = | |
1300 | this_cache->saved_regs[SCORE_RA_REGNUM]; | |
1301 | } | |
1302 | ||
1303 | /* Save FP. */ | |
1304 | if (fp_offset_p == 1) | |
1305 | { | |
1306 | if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1) | |
1307 | this_cache->saved_regs[SCORE_FP_REGNUM].addr = | |
1308 | sp + sp_offset - fp_offset; | |
1309 | } | |
1310 | ||
1311 | /* Save SP and FP. */ | |
1312 | this_cache->base = sp + sp_offset; | |
1313 | this_cache->fp = fp; | |
27fd2f50 Q |
1314 | } |
1315 | ||
1316 | static struct score_frame_cache * | |
94afd7a6 | 1317 | score_make_prologue_cache (struct frame_info *this_frame, void **this_cache) |
27fd2f50 Q |
1318 | { |
1319 | struct score_frame_cache *cache; | |
1320 | ||
1321 | if ((*this_cache) != NULL) | |
1322 | return (*this_cache); | |
1323 | ||
1324 | cache = FRAME_OBSTACK_ZALLOC (struct score_frame_cache); | |
1325 | (*this_cache) = cache; | |
94afd7a6 | 1326 | cache->saved_regs = trad_frame_alloc_saved_regs (this_frame); |
27fd2f50 Q |
1327 | |
1328 | /* Analyze the prologue. */ | |
1329 | { | |
94afd7a6 | 1330 | const CORE_ADDR pc = get_frame_pc (this_frame); |
27fd2f50 Q |
1331 | CORE_ADDR start_addr; |
1332 | ||
1333 | find_pc_partial_function (pc, NULL, &start_addr, NULL); | |
1334 | if (start_addr == 0) | |
1335 | return cache; | |
5f814c3b DL |
1336 | |
1337 | if (target_mach == bfd_mach_score3) | |
1338 | score3_analyze_prologue (start_addr, pc, this_frame, *this_cache); | |
1339 | else | |
1340 | score7_analyze_prologue (start_addr, pc, this_frame, *this_cache); | |
27fd2f50 Q |
1341 | } |
1342 | ||
1343 | /* Save SP. */ | |
1344 | trad_frame_set_value (cache->saved_regs, SCORE_SP_REGNUM, cache->base); | |
1345 | ||
1346 | return (*this_cache); | |
1347 | } | |
1348 | ||
1349 | static void | |
94afd7a6 | 1350 | score_prologue_this_id (struct frame_info *this_frame, void **this_cache, |
27fd2f50 Q |
1351 | struct frame_id *this_id) |
1352 | { | |
94afd7a6 | 1353 | struct score_frame_cache *info = score_make_prologue_cache (this_frame, |
27fd2f50 | 1354 | this_cache); |
94afd7a6 | 1355 | (*this_id) = frame_id_build (info->base, get_frame_func (this_frame)); |
27fd2f50 Q |
1356 | } |
1357 | ||
94afd7a6 UW |
1358 | static struct value * |
1359 | score_prologue_prev_register (struct frame_info *this_frame, | |
1360 | void **this_cache, int regnum) | |
27fd2f50 | 1361 | { |
94afd7a6 | 1362 | struct score_frame_cache *info = score_make_prologue_cache (this_frame, |
27fd2f50 | 1363 | this_cache); |
94afd7a6 | 1364 | return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum); |
27fd2f50 Q |
1365 | } |
1366 | ||
1367 | static const struct frame_unwind score_prologue_unwind = | |
1368 | { | |
1369 | NORMAL_FRAME, | |
8fbca658 | 1370 | default_frame_unwind_stop_reason, |
27fd2f50 | 1371 | score_prologue_this_id, |
94afd7a6 UW |
1372 | score_prologue_prev_register, |
1373 | NULL, | |
5f814c3b DL |
1374 | default_frame_sniffer, |
1375 | NULL | |
27fd2f50 Q |
1376 | }; |
1377 | ||
27fd2f50 | 1378 | static CORE_ADDR |
94afd7a6 | 1379 | score_prologue_frame_base_address (struct frame_info *this_frame, |
27fd2f50 Q |
1380 | void **this_cache) |
1381 | { | |
1382 | struct score_frame_cache *info = | |
94afd7a6 | 1383 | score_make_prologue_cache (this_frame, this_cache); |
5e29c264 | 1384 | return info->fp; |
27fd2f50 Q |
1385 | } |
1386 | ||
1387 | static const struct frame_base score_prologue_frame_base = | |
1388 | { | |
1389 | &score_prologue_unwind, | |
1390 | score_prologue_frame_base_address, | |
1391 | score_prologue_frame_base_address, | |
1392 | score_prologue_frame_base_address, | |
1393 | }; | |
1394 | ||
1395 | static const struct frame_base * | |
94afd7a6 | 1396 | score_prologue_frame_base_sniffer (struct frame_info *this_frame) |
27fd2f50 Q |
1397 | { |
1398 | return &score_prologue_frame_base; | |
1399 | } | |
1400 | ||
5f814c3b DL |
1401 | /* Core file support (dirty hack) |
1402 | ||
c378eb4e | 1403 | The core file MUST be generated by GNU/Linux on S+core. */ |
5f814c3b DL |
1404 | |
1405 | static void | |
1406 | score7_linux_supply_gregset(const struct regset *regset, | |
1407 | struct regcache *regcache, | |
1408 | int regnum, const void *gregs_buf, size_t len) | |
1409 | { | |
c378eb4e MS |
1410 | int regno; |
1411 | elf_gregset_t *gregs; | |
5f814c3b | 1412 | |
c378eb4e MS |
1413 | gdb_assert (regset != NULL); |
1414 | gdb_assert ((regcache != NULL) && (gregs_buf != NULL)); | |
5f814c3b | 1415 | |
c378eb4e | 1416 | gregs = (elf_gregset_t *) gregs_buf; |
5f814c3b | 1417 | |
c378eb4e MS |
1418 | for (regno = 0; regno < 32; regno++) |
1419 | if (regnum == -1 || regnum == regno) | |
1420 | regcache_raw_supply (regcache, regno, gregs->regs + regno); | |
5f814c3b | 1421 | |
c378eb4e MS |
1422 | { |
1423 | struct sreg { | |
1424 | int regnum; | |
1425 | void *buf; | |
1426 | } sregs [] = { | |
1427 | { 55, &(gregs->cel) }, /* CEL */ | |
1428 | { 54, &(gregs->ceh) }, /* CEH */ | |
1429 | { 53, &(gregs->sr0) }, /* sr0, i.e. cnt or COUNTER */ | |
1430 | { 52, &(gregs->sr1) }, /* sr1, i.e. lcr or LDCR */ | |
1431 | { 51, &(gregs->sr1) }, /* sr2, i.e. scr or STCR */ | |
1432 | ||
1433 | /* Exception occured at this address, exactly the PC we want */ | |
1434 | { 49, &(gregs->cp0_epc) }, /* PC */ | |
1435 | ||
1436 | { 38, &(gregs->cp0_ema) }, /* EMA */ | |
1437 | { 37, &(gregs->cp0_epc) }, /* EPC */ | |
1438 | { 34, &(gregs->cp0_ecr) }, /* ECR */ | |
1439 | { 33, &(gregs->cp0_condition) }, /* COND */ | |
1440 | { 32, &(gregs->cp0_psr) }, /* PSR */ | |
1441 | }; | |
1442 | ||
1443 | for (regno = 0; regno < sizeof(sregs)/sizeof(sregs[0]); regno++) | |
1444 | if (regnum == -1 || regnum == sregs[regno].regnum) | |
1445 | regcache_raw_supply (regcache, | |
1446 | sregs[regno].regnum, sregs[regno].buf); | |
1447 | } | |
5f814c3b DL |
1448 | } |
1449 | ||
1450 | /* Return the appropriate register set from the core section identified | |
c378eb4e | 1451 | by SECT_NAME and SECT_SIZE. */ |
5f814c3b DL |
1452 | |
1453 | static const struct regset * | |
1454 | score7_linux_regset_from_core_section(struct gdbarch *gdbarch, | |
1455 | const char *sect_name, size_t sect_size) | |
1456 | { | |
c378eb4e | 1457 | struct gdbarch_tdep *tdep; |
5f814c3b | 1458 | |
c378eb4e MS |
1459 | gdb_assert (gdbarch != NULL); |
1460 | gdb_assert (sect_name != NULL); | |
5f814c3b | 1461 | |
c378eb4e | 1462 | tdep = gdbarch_tdep (gdbarch); |
5f814c3b | 1463 | |
c378eb4e | 1464 | if (strcmp(sect_name, ".reg") == 0 && sect_size == sizeof(elf_gregset_t)) |
5f814c3b | 1465 | { |
c378eb4e MS |
1466 | if (tdep->gregset == NULL) |
1467 | tdep->gregset = regset_alloc (gdbarch, | |
1468 | score7_linux_supply_gregset, NULL); | |
1469 | return tdep->gregset; | |
5f814c3b DL |
1470 | } |
1471 | ||
c378eb4e | 1472 | return NULL; |
5f814c3b DL |
1473 | } |
1474 | ||
27fd2f50 Q |
1475 | static struct gdbarch * |
1476 | score_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) | |
1477 | { | |
1478 | struct gdbarch *gdbarch; | |
5f814c3b DL |
1479 | struct gdbarch_tdep *tdep; |
1480 | target_mach = info.bfd_arch_info->mach; | |
27fd2f50 Q |
1481 | |
1482 | arches = gdbarch_list_lookup_by_info (arches, &info); | |
1483 | if (arches != NULL) | |
1484 | { | |
1485 | return (arches->gdbarch); | |
1486 | } | |
5f814c3b DL |
1487 | tdep = xcalloc(1, sizeof(struct gdbarch_tdep)); |
1488 | gdbarch = gdbarch_alloc (&info, tdep); | |
27fd2f50 Q |
1489 | |
1490 | set_gdbarch_short_bit (gdbarch, 16); | |
1491 | set_gdbarch_int_bit (gdbarch, 32); | |
1492 | set_gdbarch_float_bit (gdbarch, 32); | |
1493 | set_gdbarch_double_bit (gdbarch, 64); | |
1494 | set_gdbarch_long_double_bit (gdbarch, 64); | |
5f814c3b | 1495 | #if WITH_SIM |
27fd2f50 | 1496 | set_gdbarch_register_sim_regno (gdbarch, score_register_sim_regno); |
5f814c3b | 1497 | #endif |
27fd2f50 Q |
1498 | set_gdbarch_pc_regnum (gdbarch, SCORE_PC_REGNUM); |
1499 | set_gdbarch_sp_regnum (gdbarch, SCORE_SP_REGNUM); | |
c378eb4e MS |
1500 | set_gdbarch_adjust_breakpoint_address (gdbarch, |
1501 | score_adjust_breakpoint_address); | |
27fd2f50 Q |
1502 | set_gdbarch_register_type (gdbarch, score_register_type); |
1503 | set_gdbarch_frame_align (gdbarch, score_frame_align); | |
1504 | set_gdbarch_inner_than (gdbarch, core_addr_lessthan); | |
30244cd8 | 1505 | set_gdbarch_unwind_sp (gdbarch, score_unwind_sp); |
5f814c3b | 1506 | set_gdbarch_unwind_pc (gdbarch, score_unwind_pc); |
27fd2f50 | 1507 | set_gdbarch_print_insn (gdbarch, score_print_insn); |
5f814c3b DL |
1508 | |
1509 | switch (target_mach) | |
1510 | { | |
1511 | case bfd_mach_score7: | |
1512 | set_gdbarch_breakpoint_from_pc (gdbarch, score7_breakpoint_from_pc); | |
1513 | set_gdbarch_skip_prologue (gdbarch, score7_skip_prologue); | |
c378eb4e MS |
1514 | set_gdbarch_in_function_epilogue_p (gdbarch, |
1515 | score7_in_function_epilogue_p); | |
5f814c3b DL |
1516 | set_gdbarch_register_name (gdbarch, score7_register_name); |
1517 | set_gdbarch_num_regs (gdbarch, SCORE7_NUM_REGS); | |
c378eb4e MS |
1518 | /* Core file support. */ |
1519 | set_gdbarch_regset_from_core_section (gdbarch, | |
1520 | score7_linux_regset_from_core_section); | |
5f814c3b DL |
1521 | break; |
1522 | ||
1523 | case bfd_mach_score3: | |
1524 | set_gdbarch_breakpoint_from_pc (gdbarch, score3_breakpoint_from_pc); | |
1525 | set_gdbarch_skip_prologue (gdbarch, score3_skip_prologue); | |
c378eb4e MS |
1526 | set_gdbarch_in_function_epilogue_p (gdbarch, |
1527 | score3_in_function_epilogue_p); | |
5f814c3b DL |
1528 | set_gdbarch_register_name (gdbarch, score3_register_name); |
1529 | set_gdbarch_num_regs (gdbarch, SCORE3_NUM_REGS); | |
1530 | break; | |
1531 | } | |
5e29c264 Q |
1532 | |
1533 | /* Watchpoint hooks. */ | |
1534 | set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1); | |
1535 | ||
1536 | /* Dummy frame hooks. */ | |
27fd2f50 | 1537 | set_gdbarch_return_value (gdbarch, score_return_value); |
5e29c264 | 1538 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
94afd7a6 | 1539 | set_gdbarch_dummy_id (gdbarch, score_dummy_id); |
27fd2f50 Q |
1540 | set_gdbarch_push_dummy_call (gdbarch, score_push_dummy_call); |
1541 | ||
5e29c264 | 1542 | /* Normal frame hooks. */ |
94afd7a6 | 1543 | dwarf2_append_unwinders (gdbarch); |
27fd2f50 | 1544 | frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer); |
94afd7a6 | 1545 | frame_unwind_append_unwinder (gdbarch, &score_prologue_unwind); |
27fd2f50 Q |
1546 | frame_base_append_sniffer (gdbarch, score_prologue_frame_base_sniffer); |
1547 | ||
1548 | return gdbarch; | |
1549 | } | |
1550 | ||
1551 | extern initialize_file_ftype _initialize_score_tdep; | |
1552 | ||
1553 | void | |
1554 | _initialize_score_tdep (void) | |
1555 | { | |
1556 | gdbarch_register (bfd_arch_score, score_gdbarch_init, NULL); | |
1557 | } |