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 | ||
618f726f | 4 | Copyright (C) 2006-2016 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 | ||
cd6c3b4f YQ |
309 | /* Implement the breakpoint_kind_from_pc gdbarch method. */ |
310 | ||
d19280ad YQ |
311 | static int |
312 | score7_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) | |
27fd2f50 | 313 | { |
27fd2f50 Q |
314 | int ret; |
315 | unsigned int raw; | |
d19280ad YQ |
316 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
317 | gdb_byte buf[SCORE_INSTLEN] = { 0 }; | |
27fd2f50 Q |
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!"), |
d19280ad | 322 | __FILE__, __LINE__); |
27fd2f50 | 323 | } |
e17a4113 | 324 | raw = extract_unsigned_integer (buf, SCORE_INSTLEN, byte_order); |
27fd2f50 | 325 | |
d19280ad | 326 | if (!(raw & 0x80008000)) |
27fd2f50 | 327 | { |
d19280ad YQ |
328 | /* 16bits instruction. */ |
329 | *pcptr &= ~0x1; | |
330 | return 2; | |
331 | } | |
332 | else | |
333 | { | |
334 | /* 32bits instruction. */ | |
335 | *pcptr &= ~0x3; | |
336 | return 4; | |
337 | } | |
338 | } | |
339 | ||
cd6c3b4f YQ |
340 | /* Implement the sw_breakpoint_from_kind gdbarch method. */ |
341 | ||
d19280ad YQ |
342 | static const gdb_byte * |
343 | score7_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size) | |
344 | { | |
345 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
346 | ||
347 | *size = kind; | |
348 | ||
349 | if (kind == 4) | |
350 | { | |
351 | static gdb_byte big_breakpoint32[] = { 0x80, 0x00, 0x80, 0x06 }; | |
352 | static gdb_byte little_breakpoint32[] = { 0x06, 0x80, 0x00, 0x80 }; | |
353 | ||
354 | if (byte_order == BFD_ENDIAN_BIG) | |
355 | return big_breakpoint32; | |
27fd2f50 | 356 | else |
d19280ad | 357 | return little_breakpoint32; |
27fd2f50 Q |
358 | } |
359 | else | |
360 | { | |
d19280ad YQ |
361 | static gdb_byte big_breakpoint16[] = { 0x60, 0x02 }; |
362 | static gdb_byte little_breakpoint16[] = { 0x02, 0x60 }; | |
363 | ||
364 | if (byte_order == BFD_ENDIAN_BIG) | |
365 | return big_breakpoint16; | |
27fd2f50 | 366 | else |
d19280ad | 367 | return little_breakpoint16; |
27fd2f50 Q |
368 | } |
369 | } | |
370 | ||
cd6c3b4f YQ |
371 | /* Implement the breakpoint_kind_from_pc gdbarch method. */ |
372 | ||
d19280ad YQ |
373 | static int |
374 | score3_breakpoint_kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) | |
5f814c3b DL |
375 | { |
376 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
5f814c3b | 377 | int len; |
d19280ad YQ |
378 | |
379 | score3_adjust_pc_and_fetch_inst (pcptr, &len, byte_order); | |
380 | ||
381 | return len; | |
382 | } | |
383 | ||
cd6c3b4f YQ |
384 | /* Implement the sw_breakpoint_from_kind gdbarch method. */ |
385 | ||
d19280ad YQ |
386 | static const gdb_byte * |
387 | score3_sw_breakpoint_from_kind (struct gdbarch *gdbarch, int kind, int *size) | |
388 | { | |
389 | int index = 0; | |
390 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
5f814c3b DL |
391 | static gdb_byte score_break_insns[6][6] = { |
392 | /* The following three instructions are big endian. */ | |
393 | { 0x00, 0x20 }, | |
394 | { 0x80, 0x00, 0x00, 0x06 }, | |
395 | { 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 }, | |
396 | /* The following three instructions are little endian. */ | |
397 | { 0x20, 0x00 }, | |
398 | { 0x00, 0x80, 0x06, 0x00 }, | |
399 | { 0x00, 0x80, 0x00, 0x80, 0x00, 0x00 }}; | |
400 | ||
d19280ad | 401 | *size = kind; |
5f814c3b | 402 | |
d19280ad YQ |
403 | index = ((byte_order == BFD_ENDIAN_BIG) ? 0 : 3) + (kind / 2 - 1); |
404 | return score_break_insns[index]; | |
5f814c3b DL |
405 | } |
406 | ||
407 | static CORE_ADDR | |
408 | score_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr) | |
409 | { | |
410 | CORE_ADDR adjust_pc = bpaddr; | |
411 | ||
412 | if (target_mach == bfd_mach_score3) | |
413 | score3_adjust_pc_and_fetch_inst (&adjust_pc, NULL, | |
414 | gdbarch_byte_order (gdbarch)); | |
415 | else | |
416 | adjust_pc = align_down (adjust_pc, 2); | |
417 | ||
418 | return adjust_pc; | |
419 | } | |
420 | ||
27fd2f50 Q |
421 | static CORE_ADDR |
422 | score_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr) | |
423 | { | |
424 | return align_down (addr, 16); | |
425 | } | |
426 | ||
427 | static void | |
428 | score_xfer_register (struct regcache *regcache, int regnum, int length, | |
429 | enum bfd_endian endian, gdb_byte *readbuf, | |
430 | const gdb_byte *writebuf, int buf_offset) | |
431 | { | |
432 | int reg_offset = 0; | |
5f814c3b | 433 | gdb_assert (regnum >= 0 |
c378eb4e MS |
434 | && regnum < ((target_mach == bfd_mach_score7) |
435 | ? SCORE7_NUM_REGS : SCORE3_NUM_REGS)); | |
27fd2f50 Q |
436 | |
437 | switch (endian) | |
438 | { | |
439 | case BFD_ENDIAN_BIG: | |
440 | reg_offset = SCORE_REGSIZE - length; | |
441 | break; | |
442 | case BFD_ENDIAN_LITTLE: | |
443 | reg_offset = 0; | |
444 | break; | |
445 | case BFD_ENDIAN_UNKNOWN: | |
446 | reg_offset = 0; | |
447 | break; | |
448 | default: | |
a73c6dcd | 449 | error (_("Error: score_xfer_register in file:%s, line:%d!"), |
5e29c264 | 450 | __FILE__, __LINE__); |
27fd2f50 Q |
451 | } |
452 | ||
453 | if (readbuf != NULL) | |
454 | regcache_cooked_read_part (regcache, regnum, reg_offset, length, | |
455 | readbuf + buf_offset); | |
456 | if (writebuf != NULL) | |
457 | regcache_cooked_write_part (regcache, regnum, reg_offset, length, | |
458 | writebuf + buf_offset); | |
459 | } | |
460 | ||
461 | static enum return_value_convention | |
6a3a010b | 462 | score_return_value (struct gdbarch *gdbarch, struct value *function, |
5f814c3b | 463 | struct type *type, struct regcache *regcache, |
27fd2f50 Q |
464 | gdb_byte * readbuf, const gdb_byte * writebuf) |
465 | { | |
466 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT | |
467 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
468 | || TYPE_CODE (type) == TYPE_CODE_ARRAY) | |
469 | return RETURN_VALUE_STRUCT_CONVENTION; | |
470 | else | |
471 | { | |
472 | int offset; | |
473 | int regnum; | |
474 | for (offset = 0, regnum = SCORE_A0_REGNUM; | |
475 | offset < TYPE_LENGTH (type); | |
476 | offset += SCORE_REGSIZE, regnum++) | |
477 | { | |
478 | int xfer = SCORE_REGSIZE; | |
c378eb4e | 479 | |
27fd2f50 Q |
480 | if (offset + xfer > TYPE_LENGTH (type)) |
481 | xfer = TYPE_LENGTH (type) - offset; | |
4c6b5505 | 482 | score_xfer_register (regcache, regnum, xfer, |
5f814c3b | 483 | gdbarch_byte_order(gdbarch), |
27fd2f50 Q |
484 | readbuf, writebuf, offset); |
485 | } | |
486 | return RETURN_VALUE_REGISTER_CONVENTION; | |
487 | } | |
488 | } | |
489 | ||
490 | static struct frame_id | |
94afd7a6 | 491 | score_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame) |
27fd2f50 | 492 | { |
c378eb4e MS |
493 | return frame_id_build (get_frame_register_unsigned (this_frame, |
494 | SCORE_SP_REGNUM), | |
495 | get_frame_pc (this_frame)); | |
27fd2f50 Q |
496 | } |
497 | ||
498 | static int | |
499 | score_type_needs_double_align (struct type *type) | |
500 | { | |
501 | enum type_code typecode = TYPE_CODE (type); | |
502 | ||
5e29c264 Q |
503 | if ((typecode == TYPE_CODE_INT && TYPE_LENGTH (type) == 8) |
504 | || (typecode == TYPE_CODE_FLT && TYPE_LENGTH (type) == 8)) | |
27fd2f50 Q |
505 | return 1; |
506 | else if (typecode == TYPE_CODE_STRUCT || typecode == TYPE_CODE_UNION) | |
507 | { | |
508 | int i, n; | |
509 | ||
510 | n = TYPE_NFIELDS (type); | |
511 | for (i = 0; i < n; i++) | |
512 | if (score_type_needs_double_align (TYPE_FIELD_TYPE (type, i))) | |
513 | return 1; | |
514 | return 0; | |
515 | } | |
516 | return 0; | |
517 | } | |
518 | ||
519 | static CORE_ADDR | |
520 | score_push_dummy_call (struct gdbarch *gdbarch, struct value *function, | |
521 | struct regcache *regcache, CORE_ADDR bp_addr, | |
522 | int nargs, struct value **args, CORE_ADDR sp, | |
523 | int struct_return, CORE_ADDR struct_addr) | |
524 | { | |
e17a4113 | 525 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
27fd2f50 Q |
526 | int argnum; |
527 | int argreg; | |
528 | int arglen = 0; | |
529 | CORE_ADDR stack_offset = 0; | |
530 | CORE_ADDR addr = 0; | |
531 | ||
532 | /* Step 1, Save RA. */ | |
533 | regcache_cooked_write_unsigned (regcache, SCORE_RA_REGNUM, bp_addr); | |
534 | ||
535 | /* Step 2, Make space on the stack for the args. */ | |
536 | struct_addr = align_down (struct_addr, 16); | |
537 | sp = align_down (sp, 16); | |
538 | for (argnum = 0; argnum < nargs; argnum++) | |
539 | arglen += align_up (TYPE_LENGTH (value_type (args[argnum])), | |
540 | SCORE_REGSIZE); | |
541 | sp -= align_up (arglen, 16); | |
542 | ||
543 | argreg = SCORE_BEGIN_ARG_REGNUM; | |
544 | ||
5e29c264 Q |
545 | /* Step 3, Check if struct return then save the struct address to |
546 | r4 and increase the stack_offset by 4. */ | |
27fd2f50 Q |
547 | if (struct_return) |
548 | { | |
549 | regcache_cooked_write_unsigned (regcache, argreg++, struct_addr); | |
550 | stack_offset += SCORE_REGSIZE; | |
551 | } | |
552 | ||
553 | /* Step 4, Load arguments: | |
5e29c264 Q |
554 | If arg length is too long (> 4 bytes), then split the arg and |
555 | save every parts. */ | |
27fd2f50 Q |
556 | for (argnum = 0; argnum < nargs; argnum++) |
557 | { | |
558 | struct value *arg = args[argnum]; | |
559 | struct type *arg_type = check_typedef (value_type (arg)); | |
27fd2f50 Q |
560 | enum type_code typecode = TYPE_CODE (arg_type); |
561 | const gdb_byte *val = value_contents (arg); | |
562 | int downward_offset = 0; | |
1cfd2c3e | 563 | int arg_last_part_p = 0; |
27fd2f50 | 564 | |
1cfd2c3e | 565 | arglen = TYPE_LENGTH (arg_type); |
27fd2f50 Q |
566 | |
567 | /* If a arg should be aligned to 8 bytes (long long or double), | |
568 | the value should be put to even register numbers. */ | |
569 | if (score_type_needs_double_align (arg_type)) | |
570 | { | |
571 | if (argreg & 1) | |
572 | argreg++; | |
573 | } | |
574 | ||
575 | /* If sizeof a block < SCORE_REGSIZE, then Score GCC will chose | |
576 | the default "downward"/"upward" method: | |
577 | ||
578 | Example: | |
579 | ||
580 | struct struc | |
581 | { | |
582 | char a; char b; char c; | |
583 | } s = {'a', 'b', 'c'}; | |
584 | ||
585 | Big endian: s = {X, 'a', 'b', 'c'} | |
586 | Little endian: s = {'a', 'b', 'c', X} | |
587 | ||
588 | Where X is a hole. */ | |
589 | ||
5f814c3b | 590 | if (gdbarch_byte_order(gdbarch) == BFD_ENDIAN_BIG |
27fd2f50 Q |
591 | && (typecode == TYPE_CODE_STRUCT |
592 | || typecode == TYPE_CODE_UNION) | |
593 | && argreg > SCORE_LAST_ARG_REGNUM | |
594 | && arglen < SCORE_REGSIZE) | |
595 | downward_offset += (SCORE_REGSIZE - arglen); | |
596 | ||
597 | while (arglen > 0) | |
598 | { | |
599 | int partial_len = arglen < SCORE_REGSIZE ? arglen : SCORE_REGSIZE; | |
e17a4113 | 600 | ULONGEST regval = extract_unsigned_integer (val, partial_len, |
5f814c3b | 601 | byte_order); |
27fd2f50 Q |
602 | |
603 | /* The last part of a arg should shift left when | |
4c6b5505 | 604 | gdbarch_byte_order is BFD_ENDIAN_BIG. */ |
5f814c3b | 605 | if (byte_order == BFD_ENDIAN_BIG |
27fd2f50 Q |
606 | && arg_last_part_p == 1 |
607 | && (typecode == TYPE_CODE_STRUCT | |
608 | || typecode == TYPE_CODE_UNION)) | |
609 | regval <<= ((SCORE_REGSIZE - partial_len) * TARGET_CHAR_BIT); | |
610 | ||
611 | /* Always increase the stack_offset and save args to stack. */ | |
612 | addr = sp + stack_offset + downward_offset; | |
613 | write_memory (addr, val, partial_len); | |
614 | ||
615 | if (argreg <= SCORE_LAST_ARG_REGNUM) | |
616 | { | |
617 | regcache_cooked_write_unsigned (regcache, argreg++, regval); | |
618 | if (arglen > SCORE_REGSIZE && arglen < SCORE_REGSIZE * 2) | |
619 | arg_last_part_p = 1; | |
620 | } | |
621 | ||
622 | val += partial_len; | |
623 | arglen -= partial_len; | |
624 | stack_offset += align_up (partial_len, SCORE_REGSIZE); | |
625 | } | |
626 | } | |
627 | ||
628 | /* Step 5, Save SP. */ | |
629 | regcache_cooked_write_unsigned (regcache, SCORE_SP_REGNUM, sp); | |
630 | ||
631 | return sp; | |
632 | } | |
633 | ||
27fd2f50 | 634 | static CORE_ADDR |
5f814c3b | 635 | score7_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) |
27fd2f50 Q |
636 | { |
637 | CORE_ADDR cpc = pc; | |
638 | int iscan = 32, stack_sub = 0; | |
639 | while (iscan-- > 0) | |
640 | { | |
5f814c3b | 641 | inst_t *inst = score7_fetch_inst (gdbarch, cpc, NULL); |
27fd2f50 Q |
642 | if (!inst) |
643 | break; | |
5f814c3b | 644 | if ((inst->len == 4) && !stack_sub |
27fd2f50 Q |
645 | && (G_FLD (inst->v, 29, 25) == 0x1 |
646 | && G_FLD (inst->v, 24, 20) == 0x0)) | |
647 | { | |
648 | /* addi r0, offset */ | |
5f814c3b DL |
649 | stack_sub = cpc + SCORE_INSTLEN; |
650 | pc = cpc + SCORE_INSTLEN; | |
27fd2f50 | 651 | } |
5f814c3b DL |
652 | else if ((inst->len == 4) |
653 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
654 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
655 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
656 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
657 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
27fd2f50 Q |
658 | { |
659 | /* mv r2, r0 */ | |
660 | pc = cpc + SCORE_INSTLEN; | |
661 | break; | |
662 | } | |
5f814c3b DL |
663 | else if ((inst->len == 2) |
664 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
665 | && (G_FLD (inst->v, 11, 8) == 0x2) | |
666 | && (G_FLD (inst->v, 7, 4) == 0x0) | |
667 | && (G_FLD (inst->v, 3, 0) == 0x3)) | |
27fd2f50 Q |
668 | { |
669 | /* mv! r2, r0 */ | |
670 | pc = cpc + SCORE16_INSTLEN; | |
671 | break; | |
672 | } | |
5f814c3b | 673 | else if ((inst->len == 2) |
27fd2f50 Q |
674 | && ((G_FLD (inst->v, 14, 12) == 3) /* j15 form */ |
675 | || (G_FLD (inst->v, 14, 12) == 4) /* b15 form */ | |
676 | || (G_FLD (inst->v, 14, 12) == 0x0 | |
677 | && G_FLD (inst->v, 3, 0) == 0x4))) /* br! */ | |
678 | break; | |
5f814c3b | 679 | else if ((inst->len == 4) |
27fd2f50 Q |
680 | && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */ |
681 | || (G_FLD (inst->v, 29, 25) == 4) /* b32 form */ | |
682 | || (G_FLD (inst->v, 29, 25) == 0x0 | |
683 | && G_FLD (inst->v, 6, 1) == 0x4))) /* br */ | |
684 | break; | |
685 | ||
5f814c3b | 686 | cpc += (inst->len == 2) ? SCORE16_INSTLEN : SCORE_INSTLEN; |
27fd2f50 Q |
687 | } |
688 | return pc; | |
689 | } | |
690 | ||
5f814c3b DL |
691 | static CORE_ADDR |
692 | score3_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) | |
27fd2f50 | 693 | { |
5f814c3b DL |
694 | CORE_ADDR cpc = pc; |
695 | int iscan = 32, stack_sub = 0; | |
696 | while (iscan-- > 0) | |
697 | { | |
698 | inst_t *inst | |
c378eb4e MS |
699 | = score3_adjust_pc_and_fetch_inst (&cpc, NULL, |
700 | gdbarch_byte_order (gdbarch)); | |
27fd2f50 | 701 | |
5f814c3b DL |
702 | if (!inst) |
703 | break; | |
704 | if (inst->len == 4 && !stack_sub | |
705 | && (G_FLD (inst->v, 29, 25) == 0x1) | |
706 | && (G_FLD (inst->v, 19, 17) == 0x0) | |
707 | && (G_FLD (inst->v, 24, 20) == 0x0)) | |
708 | { | |
709 | /* addi r0, offset */ | |
710 | stack_sub = cpc + inst->len; | |
711 | pc = cpc + inst->len; | |
712 | } | |
713 | else if (inst->len == 4 | |
714 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
715 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
716 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
717 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
718 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
719 | { | |
720 | /* mv r2, r0 */ | |
721 | pc = cpc + inst->len; | |
722 | break; | |
723 | } | |
724 | else if ((inst->len == 2) | |
725 | && (G_FLD (inst->v, 14, 10) == 0x10) | |
726 | && (G_FLD (inst->v, 9, 5) == 0x2) | |
727 | && (G_FLD (inst->v, 4, 0) == 0x0)) | |
728 | { | |
729 | /* mv! r2, r0 */ | |
730 | pc = cpc + inst->len; | |
731 | break; | |
732 | } | |
733 | else if (inst->len == 2 | |
734 | && ((G_FLD (inst->v, 14, 12) == 3) /* b15 form */ | |
735 | || (G_FLD (inst->v, 14, 12) == 0x0 | |
736 | && G_FLD (inst->v, 11, 5) == 0x4))) /* br! */ | |
737 | break; | |
738 | else if (inst->len == 4 | |
739 | && ((G_FLD (inst->v, 29, 25) == 2) /* j32 form */ | |
740 | || (G_FLD (inst->v, 29, 25) == 4))) /* b32 form */ | |
741 | break; | |
742 | ||
743 | cpc += inst->len; | |
744 | } | |
745 | return pc; | |
746 | } | |
747 | ||
c9cf6e20 MG |
748 | /* Implement the stack_frame_destroyed_p gdbarch method. */ |
749 | ||
5f814c3b | 750 | static int |
c9cf6e20 | 751 | score7_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc) |
5f814c3b DL |
752 | { |
753 | inst_t *inst = score7_fetch_inst (gdbarch, cur_pc, NULL); | |
754 | ||
755 | if (inst->v == 0x23) | |
756 | return 1; /* mv! r0, r2 */ | |
757 | else if (G_FLD (inst->v, 14, 12) == 0x2 | |
758 | && G_FLD (inst->v, 3, 0) == 0xa) | |
759 | return 1; /* pop! */ | |
27fd2f50 Q |
760 | else if (G_FLD (inst->v, 14, 12) == 0x0 |
761 | && G_FLD (inst->v, 7, 0) == 0x34) | |
762 | return 1; /* br! r3 */ | |
763 | else if (G_FLD (inst->v, 29, 15) == 0x2 | |
764 | && G_FLD (inst->v, 6, 1) == 0x2b) | |
765 | return 1; /* mv r0, r2 */ | |
766 | else if (G_FLD (inst->v, 29, 25) == 0x0 | |
767 | && G_FLD (inst->v, 6, 1) == 0x4 | |
768 | && G_FLD (inst->v, 19, 15) == 0x3) | |
769 | return 1; /* br r3 */ | |
770 | else | |
771 | return 0; | |
772 | } | |
773 | ||
c9cf6e20 MG |
774 | /* Implement the stack_frame_destroyed_p gdbarch method. */ |
775 | ||
5f814c3b | 776 | static int |
c9cf6e20 | 777 | score3_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR cur_pc) |
5f814c3b DL |
778 | { |
779 | CORE_ADDR pc = cur_pc; | |
780 | inst_t *inst | |
c378eb4e MS |
781 | = score3_adjust_pc_and_fetch_inst (&pc, NULL, |
782 | gdbarch_byte_order (gdbarch)); | |
5f814c3b DL |
783 | |
784 | if (inst->len == 2 | |
785 | && (G_FLD (inst->v, 14, 10) == 0x10) | |
786 | && (G_FLD (inst->v, 9, 5) == 0x0) | |
787 | && (G_FLD (inst->v, 4, 0) == 0x2)) | |
788 | return 1; /* mv! r0, r2 */ | |
789 | else if (inst->len == 4 | |
790 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
791 | && (G_FLD (inst->v, 24, 20) == 0x2) | |
792 | && (G_FLD (inst->v, 19, 15) == 0x0) | |
793 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
794 | && (G_FLD (inst->v, 9, 0) == 0x56)) | |
795 | return 1; /* mv r0, r2 */ | |
796 | else if (inst->len == 2 | |
797 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
798 | && (G_FLD (inst->v, 11, 5) == 0x2)) | |
799 | return 1; /* pop! */ | |
800 | else if (inst->len == 2 | |
801 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
802 | && (G_FLD (inst->v, 11, 7) == 0x0) | |
803 | && (G_FLD (inst->v, 6, 5) == 0x2)) | |
804 | return 1; /* rpop! */ | |
805 | else if (inst->len == 2 | |
806 | && (G_FLD (inst->v, 14, 12) == 0x0) | |
807 | && (G_FLD (inst->v, 11, 5) == 0x4) | |
808 | && (G_FLD (inst->v, 4, 0) == 0x3)) | |
809 | return 1; /* br! r3 */ | |
810 | else if (inst->len == 4 | |
811 | && (G_FLD (inst->v, 29, 25) == 0x0) | |
812 | && (G_FLD (inst->v, 24, 20) == 0x0) | |
813 | && (G_FLD (inst->v, 19, 15) == 0x3) | |
814 | && (G_FLD (inst->v, 14, 10) == 0xF) | |
815 | && (G_FLD (inst->v, 9, 0) == 0x8)) | |
816 | return 1; /* br r3 */ | |
817 | else | |
818 | return 0; | |
819 | } | |
820 | ||
e362b510 | 821 | static gdb_byte * |
5f814c3b DL |
822 | score7_malloc_and_get_memblock (CORE_ADDR addr, CORE_ADDR size) |
823 | { | |
824 | int ret; | |
e362b510 | 825 | gdb_byte *memblock = NULL; |
5f814c3b | 826 | |
d66ff635 | 827 | if (size == 0) |
5f814c3b DL |
828 | return NULL; |
829 | ||
224c3ddb | 830 | memblock = (gdb_byte *) xmalloc (size); |
5f814c3b DL |
831 | memset (memblock, 0, size); |
832 | ret = target_read_memory (addr & ~0x3, memblock, size); | |
833 | if (ret) | |
834 | { | |
a73c6dcd | 835 | error (_("Error: target_read_memory in file:%s, line:%d!"), |
5f814c3b DL |
836 | __FILE__, __LINE__); |
837 | return NULL; | |
838 | } | |
839 | return memblock; | |
840 | } | |
841 | ||
27fd2f50 | 842 | static void |
948f8e3d | 843 | score7_free_memblock (gdb_byte *memblock) |
5f814c3b DL |
844 | { |
845 | xfree (memblock); | |
846 | } | |
847 | ||
848 | static void | |
e362b510 | 849 | score7_adjust_memblock_ptr (gdb_byte **memblock, CORE_ADDR prev_pc, |
5f814c3b DL |
850 | CORE_ADDR cur_pc) |
851 | { | |
852 | if (prev_pc == -1) | |
853 | { | |
854 | /* First time call this function, do nothing. */ | |
855 | } | |
856 | else if (cur_pc - prev_pc == 2 && (cur_pc & 0x3) == 0) | |
857 | { | |
858 | /* First 16-bit instruction, then 32-bit instruction. */ | |
859 | *memblock += SCORE_INSTLEN; | |
860 | } | |
861 | else if (cur_pc - prev_pc == 4) | |
862 | { | |
863 | /* Is 32-bit instruction, increase MEMBLOCK by 4. */ | |
864 | *memblock += SCORE_INSTLEN; | |
865 | } | |
866 | } | |
867 | ||
868 | static void | |
869 | score7_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc, | |
94afd7a6 | 870 | struct frame_info *this_frame, |
27fd2f50 Q |
871 | struct score_frame_cache *this_cache) |
872 | { | |
94afd7a6 | 873 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
27fd2f50 | 874 | CORE_ADDR sp; |
5e29c264 | 875 | CORE_ADDR fp; |
27fd2f50 Q |
876 | CORE_ADDR cur_pc = startaddr; |
877 | ||
878 | int sp_offset = 0; | |
879 | int ra_offset = 0; | |
880 | int fp_offset = 0; | |
881 | int ra_offset_p = 0; | |
882 | int fp_offset_p = 0; | |
883 | int inst_len = 0; | |
884 | ||
e362b510 PA |
885 | gdb_byte *memblock = NULL; |
886 | gdb_byte *memblock_ptr = NULL; | |
5e29c264 Q |
887 | CORE_ADDR prev_pc = -1; |
888 | ||
889 | /* Allocate MEMBLOCK if PC - STARTADDR > 0. */ | |
890 | memblock_ptr = memblock = | |
5f814c3b | 891 | score7_malloc_and_get_memblock (startaddr, pc - startaddr); |
5e29c264 | 892 | |
94afd7a6 UW |
893 | sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM); |
894 | fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM); | |
27fd2f50 | 895 | |
5e29c264 | 896 | for (; cur_pc < pc; prev_pc = cur_pc, cur_pc += inst_len) |
27fd2f50 | 897 | { |
5e29c264 Q |
898 | inst_t *inst = NULL; |
899 | if (memblock != NULL) | |
900 | { | |
901 | /* Reading memory block from target succefully and got all | |
902 | the instructions(from STARTADDR to PC) needed. */ | |
5f814c3b DL |
903 | score7_adjust_memblock_ptr (&memblock, prev_pc, cur_pc); |
904 | inst = score7_fetch_inst (gdbarch, cur_pc, memblock); | |
5e29c264 Q |
905 | } |
906 | else | |
907 | { | |
908 | /* Otherwise, we fetch 4 bytes from target, and GDB also | |
909 | work correctly. */ | |
5f814c3b | 910 | inst = score7_fetch_inst (gdbarch, cur_pc, NULL); |
5e29c264 Q |
911 | } |
912 | ||
c378eb4e | 913 | /* FIXME: make a full-power prologue analyzer. */ |
5f814c3b | 914 | if (inst->len == 2) |
27fd2f50 Q |
915 | { |
916 | inst_len = SCORE16_INSTLEN; | |
917 | ||
918 | if (G_FLD (inst->v, 14, 12) == 0x2 | |
919 | && G_FLD (inst->v, 3, 0) == 0xe) | |
920 | { | |
921 | /* push! */ | |
922 | sp_offset += 4; | |
923 | ||
924 | if (G_FLD (inst->v, 11, 7) == 0x6 | |
925 | && ra_offset_p == 0) | |
926 | { | |
927 | /* push! r3, [r0] */ | |
928 | ra_offset = sp_offset; | |
929 | ra_offset_p = 1; | |
930 | } | |
931 | else if (G_FLD (inst->v, 11, 7) == 0x4 | |
932 | && fp_offset_p == 0) | |
933 | { | |
934 | /* push! r2, [r0] */ | |
935 | fp_offset = sp_offset; | |
936 | fp_offset_p = 1; | |
937 | } | |
938 | } | |
939 | else if (G_FLD (inst->v, 14, 12) == 0x2 | |
940 | && G_FLD (inst->v, 3, 0) == 0xa) | |
941 | { | |
942 | /* pop! */ | |
943 | sp_offset -= 4; | |
944 | } | |
945 | else if (G_FLD (inst->v, 14, 7) == 0xc1 | |
946 | && G_FLD (inst->v, 2, 0) == 0x0) | |
947 | { | |
948 | /* subei! r0, n */ | |
949 | sp_offset += (int) pow (2, G_FLD (inst->v, 6, 3)); | |
950 | } | |
951 | else if (G_FLD (inst->v, 14, 7) == 0xc0 | |
952 | && G_FLD (inst->v, 2, 0) == 0x0) | |
953 | { | |
954 | /* addei! r0, n */ | |
955 | sp_offset -= (int) pow (2, G_FLD (inst->v, 6, 3)); | |
956 | } | |
957 | } | |
958 | else | |
959 | { | |
960 | inst_len = SCORE_INSTLEN; | |
961 | ||
5f814c3b DL |
962 | if (G_FLD(inst->v, 29, 25) == 0x3 |
963 | && G_FLD(inst->v, 2, 0) == 0x4 | |
964 | && G_FLD(inst->v, 19, 15) == 0) | |
27fd2f50 | 965 | { |
5f814c3b DL |
966 | /* sw rD, [r0, offset]+ */ |
967 | sp_offset += SCORE_INSTLEN; | |
968 | ||
969 | if (G_FLD(inst->v, 24, 20) == 0x3) | |
970 | { | |
971 | /* rD = r3 */ | |
972 | if (ra_offset_p == 0) | |
973 | { | |
974 | ra_offset = sp_offset; | |
975 | ra_offset_p = 1; | |
976 | } | |
977 | } | |
978 | else if (G_FLD(inst->v, 24, 20) == 0x2) | |
979 | { | |
980 | /* rD = r2 */ | |
981 | if (fp_offset_p == 0) | |
982 | { | |
983 | fp_offset = sp_offset; | |
984 | fp_offset_p = 1; | |
985 | } | |
986 | } | |
27fd2f50 | 987 | } |
5f814c3b DL |
988 | else if (G_FLD(inst->v, 29, 25) == 0x14 |
989 | && G_FLD(inst->v, 19,15) == 0) | |
27fd2f50 | 990 | { |
5f814c3b DL |
991 | /* sw rD, [r0, offset] */ |
992 | if (G_FLD(inst->v, 24, 20) == 0x3) | |
993 | { | |
994 | /* rD = r3 */ | |
995 | ra_offset = sp_offset - G_FLD(inst->v, 14, 0); | |
996 | ra_offset_p = 1; | |
997 | } | |
998 | else if (G_FLD(inst->v, 24, 20) == 0x2) | |
999 | { | |
1000 | /* rD = r2 */ | |
1001 | fp_offset = sp_offset - G_FLD(inst->v, 14, 0); | |
1002 | fp_offset_p = 1; | |
1003 | } | |
27fd2f50 Q |
1004 | } |
1005 | else if (G_FLD (inst->v, 29, 15) == 0x1c60 | |
1006 | && G_FLD (inst->v, 2, 0) == 0x0) | |
1007 | { | |
1008 | /* lw r3, [r0]+, 4 */ | |
1009 | sp_offset -= SCORE_INSTLEN; | |
1010 | ra_offset_p = 1; | |
1011 | } | |
1012 | else if (G_FLD (inst->v, 29, 15) == 0x1c40 | |
1013 | && G_FLD (inst->v, 2, 0) == 0x0) | |
1014 | { | |
1015 | /* lw r2, [r0]+, 4 */ | |
1016 | sp_offset -= SCORE_INSTLEN; | |
1017 | fp_offset_p = 1; | |
1018 | } | |
1019 | ||
1020 | else if (G_FLD (inst->v, 29, 17) == 0x100 | |
1021 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1022 | { | |
1023 | /* addi r0, -offset */ | |
1024 | sp_offset += 65536 - G_FLD (inst->v, 16, 1); | |
1025 | } | |
1026 | else if (G_FLD (inst->v, 29, 17) == 0x110 | |
1027 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1028 | { | |
1029 | /* addi r2, offset */ | |
1030 | if (pc - cur_pc > 4) | |
1031 | { | |
1032 | unsigned int save_v = inst->v; | |
1033 | inst_t *inst2 = | |
5f814c3b | 1034 | score7_fetch_inst (gdbarch, cur_pc + SCORE_INSTLEN, NULL); |
27fd2f50 | 1035 | if (inst2->v == 0x23) |
5e29c264 Q |
1036 | { |
1037 | /* mv! r0, r2 */ | |
1038 | sp_offset -= G_FLD (save_v, 16, 1); | |
1039 | } | |
27fd2f50 Q |
1040 | } |
1041 | } | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | /* Save RA. */ | |
1046 | if (ra_offset_p == 1) | |
1047 | { | |
1048 | if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1) | |
1049 | this_cache->saved_regs[SCORE_PC_REGNUM].addr = | |
1050 | sp + sp_offset - ra_offset; | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | this_cache->saved_regs[SCORE_PC_REGNUM] = | |
1055 | this_cache->saved_regs[SCORE_RA_REGNUM]; | |
1056 | } | |
1057 | ||
1058 | /* Save FP. */ | |
1059 | if (fp_offset_p == 1) | |
1060 | { | |
1061 | if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1) | |
1062 | this_cache->saved_regs[SCORE_FP_REGNUM].addr = | |
1063 | sp + sp_offset - fp_offset; | |
1064 | } | |
1065 | ||
5e29c264 Q |
1066 | /* Save SP and FP. */ |
1067 | this_cache->base = sp + sp_offset; | |
1068 | this_cache->fp = fp; | |
1069 | ||
1070 | /* Don't forget to free MEMBLOCK if we allocated it. */ | |
1071 | if (memblock_ptr != NULL) | |
5f814c3b DL |
1072 | score7_free_memblock (memblock_ptr); |
1073 | } | |
1074 | ||
1075 | static void | |
1076 | score3_analyze_prologue (CORE_ADDR startaddr, CORE_ADDR pc, | |
1077 | struct frame_info *this_frame, | |
1078 | struct score_frame_cache *this_cache) | |
1079 | { | |
1080 | CORE_ADDR sp; | |
1081 | CORE_ADDR fp; | |
1082 | CORE_ADDR cur_pc = startaddr; | |
c378eb4e MS |
1083 | enum bfd_endian byte_order |
1084 | = gdbarch_byte_order (get_frame_arch (this_frame)); | |
5f814c3b DL |
1085 | |
1086 | int sp_offset = 0; | |
1087 | int ra_offset = 0; | |
1088 | int fp_offset = 0; | |
1089 | int ra_offset_p = 0; | |
1090 | int fp_offset_p = 0; | |
1091 | int inst_len = 0; | |
1092 | ||
5f814c3b DL |
1093 | sp = get_frame_register_unsigned (this_frame, SCORE_SP_REGNUM); |
1094 | fp = get_frame_register_unsigned (this_frame, SCORE_FP_REGNUM); | |
1095 | ||
870f88f7 | 1096 | for (; cur_pc < pc; cur_pc += inst_len) |
5f814c3b DL |
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 | { | |
5f814c3b DL |
1184 | inst_t *inst2; |
1185 | ||
1186 | cur_pc += inst->len; | |
c378eb4e MS |
1187 | inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL, |
1188 | byte_order); | |
5f814c3b DL |
1189 | |
1190 | if (inst2->len == 2 | |
1191 | && G_FLD (inst2->v, 14, 10) == 0x10 | |
1192 | && G_FLD (inst2->v, 9, 5) == 0x0 | |
1193 | && G_FLD (inst2->v, 4, 0) == 0x2) | |
1194 | { | |
1195 | /* mv! r0, r2 */ | |
1196 | int imm = G_FLD (inst->v, 5, 0); | |
1197 | if (imm >> 5) | |
1198 | imm = -(0x3F - imm + 1); | |
1199 | sp_offset -= imm; | |
1200 | } | |
1201 | } | |
1202 | } | |
1203 | } | |
1204 | else if (inst->len == 4) | |
1205 | { | |
1206 | if (G_FLD (inst->v, 29, 25) == 0x3 | |
1207 | && G_FLD (inst->v, 2, 0) == 0x4 | |
1208 | && G_FLD (inst->v, 24, 20) == 0x3 | |
1209 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1210 | { | |
1211 | /* sw r3, [r0, offset]+ */ | |
1212 | sp_offset += inst->len; | |
1213 | if (ra_offset_p == 0) | |
1214 | { | |
1215 | ra_offset = sp_offset; | |
1216 | ra_offset_p = 1; | |
1217 | } | |
1218 | } | |
1219 | else if (G_FLD (inst->v, 29, 25) == 0x3 | |
1220 | && G_FLD (inst->v, 2, 0) == 0x4 | |
1221 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1222 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1223 | { | |
1224 | /* sw r2, [r0, offset]+ */ | |
1225 | sp_offset += inst->len; | |
1226 | if (fp_offset_p == 0) | |
1227 | { | |
1228 | fp_offset = sp_offset; | |
1229 | fp_offset_p = 1; | |
1230 | } | |
1231 | } | |
1232 | else if (G_FLD (inst->v, 29, 25) == 0x7 | |
1233 | && G_FLD (inst->v, 2, 0) == 0x0 | |
1234 | && G_FLD (inst->v, 24, 20) == 0x3 | |
1235 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1236 | { | |
1237 | /* lw r3, [r0]+, 4 */ | |
1238 | sp_offset -= inst->len; | |
1239 | ra_offset_p = 1; | |
1240 | } | |
1241 | else if (G_FLD (inst->v, 29, 25) == 0x7 | |
1242 | && G_FLD (inst->v, 2, 0) == 0x0 | |
1243 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1244 | && G_FLD (inst->v, 19, 15) == 0x0) | |
1245 | { | |
1246 | /* lw r2, [r0]+, 4 */ | |
1247 | sp_offset -= inst->len; | |
1248 | fp_offset_p = 1; | |
1249 | } | |
1250 | else if (G_FLD (inst->v, 29, 25) == 0x1 | |
1251 | && G_FLD (inst->v, 19, 17) == 0x0 | |
1252 | && G_FLD (inst->v, 24, 20) == 0x0 | |
1253 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1254 | { | |
1255 | /* addi r0, -offset */ | |
1256 | int imm = G_FLD (inst->v, 16, 1); | |
1257 | if (imm >> 15) | |
1258 | imm = -(0xFFFF - imm + 1); | |
1259 | sp_offset -= imm; | |
1260 | } | |
1261 | else if (G_FLD (inst->v, 29, 25) == 0x1 | |
1262 | && G_FLD (inst->v, 19, 17) == 0x0 | |
1263 | && G_FLD (inst->v, 24, 20) == 0x2 | |
1264 | && G_FLD (inst->v, 0, 0) == 0x0) | |
1265 | { | |
1266 | /* addi r2, offset */ | |
1267 | if (pc - cur_pc >= 2) | |
1268 | { | |
5f814c3b DL |
1269 | inst_t *inst2; |
1270 | ||
1271 | cur_pc += inst->len; | |
c378eb4e MS |
1272 | inst2 = score3_adjust_pc_and_fetch_inst (&cur_pc, NULL, |
1273 | byte_order); | |
5f814c3b DL |
1274 | |
1275 | if (inst2->len == 2 | |
1276 | && G_FLD (inst2->v, 14, 10) == 0x10 | |
1277 | && G_FLD (inst2->v, 9, 5) == 0x0 | |
1278 | && G_FLD (inst2->v, 4, 0) == 0x2) | |
1279 | { | |
1280 | /* mv! r0, r2 */ | |
1281 | int imm = G_FLD (inst->v, 16, 1); | |
1282 | if (imm >> 15) | |
1283 | imm = -(0xFFFF - imm + 1); | |
1284 | sp_offset -= imm; | |
1285 | } | |
1286 | } | |
1287 | } | |
1288 | } | |
1289 | } | |
1290 | ||
1291 | /* Save RA. */ | |
1292 | if (ra_offset_p == 1) | |
1293 | { | |
1294 | if (this_cache->saved_regs[SCORE_PC_REGNUM].addr == -1) | |
1295 | this_cache->saved_regs[SCORE_PC_REGNUM].addr = | |
1296 | sp + sp_offset - ra_offset; | |
1297 | } | |
1298 | else | |
1299 | { | |
1300 | this_cache->saved_regs[SCORE_PC_REGNUM] = | |
1301 | this_cache->saved_regs[SCORE_RA_REGNUM]; | |
1302 | } | |
1303 | ||
1304 | /* Save FP. */ | |
1305 | if (fp_offset_p == 1) | |
1306 | { | |
1307 | if (this_cache->saved_regs[SCORE_FP_REGNUM].addr == -1) | |
1308 | this_cache->saved_regs[SCORE_FP_REGNUM].addr = | |
1309 | sp + sp_offset - fp_offset; | |
1310 | } | |
1311 | ||
1312 | /* Save SP and FP. */ | |
1313 | this_cache->base = sp + sp_offset; | |
1314 | this_cache->fp = fp; | |
27fd2f50 Q |
1315 | } |
1316 | ||
1317 | static struct score_frame_cache * | |
94afd7a6 | 1318 | score_make_prologue_cache (struct frame_info *this_frame, void **this_cache) |
27fd2f50 Q |
1319 | { |
1320 | struct score_frame_cache *cache; | |
1321 | ||
1322 | if ((*this_cache) != NULL) | |
19ba03f4 | 1323 | return (struct score_frame_cache *) (*this_cache); |
27fd2f50 Q |
1324 | |
1325 | cache = FRAME_OBSTACK_ZALLOC (struct score_frame_cache); | |
1326 | (*this_cache) = cache; | |
94afd7a6 | 1327 | cache->saved_regs = trad_frame_alloc_saved_regs (this_frame); |
27fd2f50 Q |
1328 | |
1329 | /* Analyze the prologue. */ | |
1330 | { | |
94afd7a6 | 1331 | const CORE_ADDR pc = get_frame_pc (this_frame); |
27fd2f50 Q |
1332 | CORE_ADDR start_addr; |
1333 | ||
1334 | find_pc_partial_function (pc, NULL, &start_addr, NULL); | |
1335 | if (start_addr == 0) | |
1336 | return cache; | |
5f814c3b DL |
1337 | |
1338 | if (target_mach == bfd_mach_score3) | |
19ba03f4 SM |
1339 | score3_analyze_prologue (start_addr, pc, this_frame, |
1340 | (struct score_frame_cache *) *this_cache); | |
5f814c3b | 1341 | else |
19ba03f4 SM |
1342 | score7_analyze_prologue (start_addr, pc, this_frame, |
1343 | (struct score_frame_cache *) *this_cache); | |
27fd2f50 Q |
1344 | } |
1345 | ||
1346 | /* Save SP. */ | |
1347 | trad_frame_set_value (cache->saved_regs, SCORE_SP_REGNUM, cache->base); | |
1348 | ||
19ba03f4 | 1349 | return (struct score_frame_cache *) (*this_cache); |
27fd2f50 Q |
1350 | } |
1351 | ||
1352 | static void | |
94afd7a6 | 1353 | score_prologue_this_id (struct frame_info *this_frame, void **this_cache, |
27fd2f50 Q |
1354 | struct frame_id *this_id) |
1355 | { | |
94afd7a6 | 1356 | struct score_frame_cache *info = score_make_prologue_cache (this_frame, |
27fd2f50 | 1357 | this_cache); |
94afd7a6 | 1358 | (*this_id) = frame_id_build (info->base, get_frame_func (this_frame)); |
27fd2f50 Q |
1359 | } |
1360 | ||
94afd7a6 UW |
1361 | static struct value * |
1362 | score_prologue_prev_register (struct frame_info *this_frame, | |
1363 | void **this_cache, int regnum) | |
27fd2f50 | 1364 | { |
94afd7a6 | 1365 | struct score_frame_cache *info = score_make_prologue_cache (this_frame, |
27fd2f50 | 1366 | this_cache); |
94afd7a6 | 1367 | return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum); |
27fd2f50 Q |
1368 | } |
1369 | ||
1370 | static const struct frame_unwind score_prologue_unwind = | |
1371 | { | |
1372 | NORMAL_FRAME, | |
8fbca658 | 1373 | default_frame_unwind_stop_reason, |
27fd2f50 | 1374 | score_prologue_this_id, |
94afd7a6 UW |
1375 | score_prologue_prev_register, |
1376 | NULL, | |
5f814c3b DL |
1377 | default_frame_sniffer, |
1378 | NULL | |
27fd2f50 Q |
1379 | }; |
1380 | ||
27fd2f50 | 1381 | static CORE_ADDR |
94afd7a6 | 1382 | score_prologue_frame_base_address (struct frame_info *this_frame, |
27fd2f50 Q |
1383 | void **this_cache) |
1384 | { | |
1385 | struct score_frame_cache *info = | |
94afd7a6 | 1386 | score_make_prologue_cache (this_frame, this_cache); |
5e29c264 | 1387 | return info->fp; |
27fd2f50 Q |
1388 | } |
1389 | ||
1390 | static const struct frame_base score_prologue_frame_base = | |
1391 | { | |
1392 | &score_prologue_unwind, | |
1393 | score_prologue_frame_base_address, | |
1394 | score_prologue_frame_base_address, | |
1395 | score_prologue_frame_base_address, | |
1396 | }; | |
1397 | ||
1398 | static const struct frame_base * | |
94afd7a6 | 1399 | score_prologue_frame_base_sniffer (struct frame_info *this_frame) |
27fd2f50 Q |
1400 | { |
1401 | return &score_prologue_frame_base; | |
1402 | } | |
1403 | ||
c5741217 AA |
1404 | /* Core file support. */ |
1405 | ||
1406 | static const struct regcache_map_entry score7_linux_gregmap[] = | |
1407 | { | |
1408 | /* FIXME: According to the current Linux kernel, r0 is preceded by | |
1409 | 9 rather than 7 words. */ | |
1410 | { 7, REGCACHE_MAP_SKIP, 4 }, | |
1411 | { 32, 0, 4 }, /* r0 ... r31 */ | |
1412 | { 1, 55, 4 }, /* CEL */ | |
1413 | { 1, 54, 4 }, /* CEH */ | |
1414 | { 1, 53, 4 }, /* sr0, i.e. cnt or COUNTER */ | |
1415 | { 1, 52, 4 }, /* sr1, i.e. lcr or LDCR */ | |
1416 | { 1, 51, 4 }, /* sr2, i.e. scr or STCR */ | |
1417 | { 1, 49, 4 }, /* PC (same slot as EPC) */ | |
1418 | { 1, 38, 4 }, /* EMA */ | |
1419 | { 1, 32, 4 }, /* PSR */ | |
1420 | { 1, 34, 4 }, /* ECR */ | |
1421 | { 1, 33, 4 }, /* COND */ | |
1422 | { 0 } | |
1423 | }; | |
1424 | ||
1425 | #define SCORE7_LINUX_EPC_OFFSET (44 * 4) | |
1426 | #define SCORE7_LINUX_SIZEOF_GREGSET (49 * 4) | |
5f814c3b DL |
1427 | |
1428 | static void | |
1429 | score7_linux_supply_gregset(const struct regset *regset, | |
c5741217 AA |
1430 | struct regcache *regcache, |
1431 | int regnum, const void *buf, | |
1432 | size_t size) | |
5f814c3b | 1433 | { |
c5741217 AA |
1434 | regcache_supply_regset (regset, regcache, regnum, buf, size); |
1435 | ||
1436 | /* Supply the EPC from the same slot as the PC. Note that the | |
1437 | collect function will store the PC in that slot. */ | |
1438 | if ((regnum == -1 || regnum == SCORE_EPC_REGNUM) | |
1439 | && size >= SCORE7_LINUX_EPC_OFFSET + 4) | |
1440 | regcache_raw_supply (regcache, SCORE_EPC_REGNUM, | |
1441 | (const gdb_byte *) buf | |
1442 | + SCORE7_LINUX_EPC_OFFSET); | |
5f814c3b DL |
1443 | } |
1444 | ||
8fea3224 AA |
1445 | static const struct regset score7_linux_gregset = |
1446 | { | |
c5741217 AA |
1447 | score7_linux_gregmap, |
1448 | score7_linux_supply_gregset, | |
1449 | regcache_collect_regset | |
8fea3224 AA |
1450 | }; |
1451 | ||
9845a0b5 | 1452 | /* Iterate over core file register note sections. */ |
5f814c3b | 1453 | |
9845a0b5 AA |
1454 | static void |
1455 | score7_linux_iterate_over_regset_sections (struct gdbarch *gdbarch, | |
1456 | iterate_over_regset_sections_cb *cb, | |
1457 | void *cb_data, | |
1458 | const struct regcache *regcache) | |
5f814c3b | 1459 | { |
9845a0b5 AA |
1460 | cb (".reg", SCORE7_LINUX_SIZEOF_GREGSET, &score7_linux_gregset, |
1461 | NULL, cb_data); | |
5f814c3b DL |
1462 | } |
1463 | ||
27fd2f50 Q |
1464 | static struct gdbarch * |
1465 | score_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) | |
1466 | { | |
1467 | struct gdbarch *gdbarch; | |
5f814c3b | 1468 | target_mach = info.bfd_arch_info->mach; |
27fd2f50 Q |
1469 | |
1470 | arches = gdbarch_list_lookup_by_info (arches, &info); | |
1471 | if (arches != NULL) | |
1472 | { | |
1473 | return (arches->gdbarch); | |
1474 | } | |
8fea3224 | 1475 | gdbarch = gdbarch_alloc (&info, NULL); |
27fd2f50 Q |
1476 | |
1477 | set_gdbarch_short_bit (gdbarch, 16); | |
1478 | set_gdbarch_int_bit (gdbarch, 32); | |
1479 | set_gdbarch_float_bit (gdbarch, 32); | |
1480 | set_gdbarch_double_bit (gdbarch, 64); | |
1481 | set_gdbarch_long_double_bit (gdbarch, 64); | |
5f814c3b | 1482 | #if WITH_SIM |
27fd2f50 | 1483 | set_gdbarch_register_sim_regno (gdbarch, score_register_sim_regno); |
5f814c3b | 1484 | #endif |
27fd2f50 Q |
1485 | set_gdbarch_pc_regnum (gdbarch, SCORE_PC_REGNUM); |
1486 | set_gdbarch_sp_regnum (gdbarch, SCORE_SP_REGNUM); | |
c378eb4e MS |
1487 | set_gdbarch_adjust_breakpoint_address (gdbarch, |
1488 | score_adjust_breakpoint_address); | |
27fd2f50 Q |
1489 | set_gdbarch_register_type (gdbarch, score_register_type); |
1490 | set_gdbarch_frame_align (gdbarch, score_frame_align); | |
1491 | set_gdbarch_inner_than (gdbarch, core_addr_lessthan); | |
30244cd8 | 1492 | set_gdbarch_unwind_sp (gdbarch, score_unwind_sp); |
5f814c3b | 1493 | set_gdbarch_unwind_pc (gdbarch, score_unwind_pc); |
27fd2f50 | 1494 | set_gdbarch_print_insn (gdbarch, score_print_insn); |
5f814c3b DL |
1495 | |
1496 | switch (target_mach) | |
1497 | { | |
1498 | case bfd_mach_score7: | |
04180708 YQ |
1499 | set_gdbarch_breakpoint_kind_from_pc (gdbarch, |
1500 | score7_breakpoint_kind_from_pc); | |
1501 | set_gdbarch_sw_breakpoint_from_kind (gdbarch, | |
1502 | score7_sw_breakpoint_from_kind); | |
5f814c3b | 1503 | set_gdbarch_skip_prologue (gdbarch, score7_skip_prologue); |
c9cf6e20 MG |
1504 | set_gdbarch_stack_frame_destroyed_p (gdbarch, |
1505 | score7_stack_frame_destroyed_p); | |
5f814c3b DL |
1506 | set_gdbarch_register_name (gdbarch, score7_register_name); |
1507 | set_gdbarch_num_regs (gdbarch, SCORE7_NUM_REGS); | |
c378eb4e | 1508 | /* Core file support. */ |
9845a0b5 AA |
1509 | set_gdbarch_iterate_over_regset_sections |
1510 | (gdbarch, score7_linux_iterate_over_regset_sections); | |
5f814c3b DL |
1511 | break; |
1512 | ||
1513 | case bfd_mach_score3: | |
04180708 YQ |
1514 | set_gdbarch_breakpoint_kind_from_pc (gdbarch, |
1515 | score3_breakpoint_kind_from_pc); | |
1516 | set_gdbarch_sw_breakpoint_from_kind (gdbarch, | |
1517 | score3_sw_breakpoint_from_kind); | |
5f814c3b | 1518 | set_gdbarch_skip_prologue (gdbarch, score3_skip_prologue); |
c9cf6e20 MG |
1519 | set_gdbarch_stack_frame_destroyed_p (gdbarch, |
1520 | score3_stack_frame_destroyed_p); | |
5f814c3b DL |
1521 | set_gdbarch_register_name (gdbarch, score3_register_name); |
1522 | set_gdbarch_num_regs (gdbarch, SCORE3_NUM_REGS); | |
1523 | break; | |
1524 | } | |
5e29c264 Q |
1525 | |
1526 | /* Watchpoint hooks. */ | |
1527 | set_gdbarch_have_nonsteppable_watchpoint (gdbarch, 1); | |
1528 | ||
1529 | /* Dummy frame hooks. */ | |
27fd2f50 | 1530 | set_gdbarch_return_value (gdbarch, score_return_value); |
5e29c264 | 1531 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
94afd7a6 | 1532 | set_gdbarch_dummy_id (gdbarch, score_dummy_id); |
27fd2f50 Q |
1533 | set_gdbarch_push_dummy_call (gdbarch, score_push_dummy_call); |
1534 | ||
5e29c264 | 1535 | /* Normal frame hooks. */ |
94afd7a6 | 1536 | dwarf2_append_unwinders (gdbarch); |
27fd2f50 | 1537 | frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer); |
94afd7a6 | 1538 | frame_unwind_append_unwinder (gdbarch, &score_prologue_unwind); |
27fd2f50 Q |
1539 | frame_base_append_sniffer (gdbarch, score_prologue_frame_base_sniffer); |
1540 | ||
1541 | return gdbarch; | |
1542 | } | |
1543 | ||
1544 | extern initialize_file_ftype _initialize_score_tdep; | |
1545 | ||
1546 | void | |
1547 | _initialize_score_tdep (void) | |
1548 | { | |
1549 | gdbarch_register (bfd_arch_score, score_gdbarch_init, NULL); | |
1550 | } |