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8b39fe56 MK |
1 | /* Target-dependent code for UltraSPARC. |
2 | ||
61baf725 | 3 | Copyright (C) 2003-2017 Free Software Foundation, Inc. |
8b39fe56 MK |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
8b39fe56 MK |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
8b39fe56 MK |
19 | |
20 | #include "defs.h" | |
21 | #include "arch-utils.h" | |
02a71ae8 | 22 | #include "dwarf2-frame.h" |
8b39fe56 MK |
23 | #include "floatformat.h" |
24 | #include "frame.h" | |
25 | #include "frame-base.h" | |
26 | #include "frame-unwind.h" | |
27 | #include "gdbcore.h" | |
28 | #include "gdbtypes.h" | |
386c036b MK |
29 | #include "inferior.h" |
30 | #include "symtab.h" | |
31 | #include "objfiles.h" | |
8b39fe56 MK |
32 | #include "osabi.h" |
33 | #include "regcache.h" | |
34 | #include "target.h" | |
35 | #include "value.h" | |
36 | ||
8b39fe56 MK |
37 | #include "sparc64-tdep.h" |
38 | ||
b021a221 | 39 | /* This file implements the SPARC 64-bit ABI as defined by the |
8b39fe56 MK |
40 | section "Low-Level System Information" of the SPARC Compliance |
41 | Definition (SCD) 2.4.1, which is the 64-bit System V psABI for | |
42 | SPARC. */ | |
43 | ||
44 | /* Please use the sparc32_-prefix for 32-bit specific code, the | |
45 | sparc64_-prefix for 64-bit specific code and the sparc_-prefix for | |
46 | code can handle both. */ | |
8b39fe56 MK |
47 | \f |
48 | /* The functions on this page are intended to be used to classify | |
49 | function arguments. */ | |
50 | ||
8b39fe56 MK |
51 | /* Check whether TYPE is "Integral or Pointer". */ |
52 | ||
53 | static int | |
54 | sparc64_integral_or_pointer_p (const struct type *type) | |
55 | { | |
56 | switch (TYPE_CODE (type)) | |
57 | { | |
58 | case TYPE_CODE_INT: | |
59 | case TYPE_CODE_BOOL: | |
60 | case TYPE_CODE_CHAR: | |
61 | case TYPE_CODE_ENUM: | |
62 | case TYPE_CODE_RANGE: | |
63 | { | |
64 | int len = TYPE_LENGTH (type); | |
65 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); | |
66 | } | |
67 | return 1; | |
68 | case TYPE_CODE_PTR: | |
69 | case TYPE_CODE_REF: | |
70 | { | |
71 | int len = TYPE_LENGTH (type); | |
72 | gdb_assert (len == 8); | |
73 | } | |
74 | return 1; | |
75 | default: | |
76 | break; | |
77 | } | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
82 | /* Check whether TYPE is "Floating". */ | |
83 | ||
84 | static int | |
85 | sparc64_floating_p (const struct type *type) | |
86 | { | |
87 | switch (TYPE_CODE (type)) | |
88 | { | |
89 | case TYPE_CODE_FLT: | |
90 | { | |
91 | int len = TYPE_LENGTH (type); | |
92 | gdb_assert (len == 4 || len == 8 || len == 16); | |
93 | } | |
94 | return 1; | |
95 | default: | |
96 | break; | |
97 | } | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
fe10a582 DM |
102 | /* Check whether TYPE is "Complex Floating". */ |
103 | ||
104 | static int | |
105 | sparc64_complex_floating_p (const struct type *type) | |
106 | { | |
107 | switch (TYPE_CODE (type)) | |
108 | { | |
109 | case TYPE_CODE_COMPLEX: | |
110 | { | |
111 | int len = TYPE_LENGTH (type); | |
112 | gdb_assert (len == 8 || len == 16 || len == 32); | |
113 | } | |
114 | return 1; | |
115 | default: | |
116 | break; | |
117 | } | |
118 | ||
119 | return 0; | |
120 | } | |
121 | ||
0497f5b0 JB |
122 | /* Check whether TYPE is "Structure or Union". |
123 | ||
124 | In terms of Ada subprogram calls, arrays are treated the same as | |
125 | struct and union types. So this function also returns non-zero | |
126 | for array types. */ | |
8b39fe56 MK |
127 | |
128 | static int | |
129 | sparc64_structure_or_union_p (const struct type *type) | |
130 | { | |
131 | switch (TYPE_CODE (type)) | |
132 | { | |
133 | case TYPE_CODE_STRUCT: | |
134 | case TYPE_CODE_UNION: | |
0497f5b0 | 135 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
136 | return 1; |
137 | default: | |
138 | break; | |
139 | } | |
140 | ||
141 | return 0; | |
142 | } | |
fd936806 MK |
143 | \f |
144 | ||
209bd28e | 145 | /* Construct types for ISA-specific registers. */ |
fd936806 | 146 | |
209bd28e UW |
147 | static struct type * |
148 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
149 | { | |
150 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
fd936806 | 151 | |
209bd28e UW |
152 | if (!tdep->sparc64_pstate_type) |
153 | { | |
154 | struct type *type; | |
155 | ||
e9bb382b | 156 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 8); |
209bd28e UW |
157 | append_flags_type_flag (type, 0, "AG"); |
158 | append_flags_type_flag (type, 1, "IE"); | |
159 | append_flags_type_flag (type, 2, "PRIV"); | |
160 | append_flags_type_flag (type, 3, "AM"); | |
161 | append_flags_type_flag (type, 4, "PEF"); | |
162 | append_flags_type_flag (type, 5, "RED"); | |
163 | append_flags_type_flag (type, 8, "TLE"); | |
164 | append_flags_type_flag (type, 9, "CLE"); | |
165 | append_flags_type_flag (type, 10, "PID0"); | |
166 | append_flags_type_flag (type, 11, "PID1"); | |
167 | ||
168 | tdep->sparc64_pstate_type = type; | |
169 | } | |
fd936806 | 170 | |
209bd28e UW |
171 | return tdep->sparc64_pstate_type; |
172 | } | |
fd936806 | 173 | |
209bd28e UW |
174 | static struct type * |
175 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
176 | { | |
177 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
178 | ||
179 | if (!tdep->sparc64_fsr_type) | |
180 | { | |
181 | struct type *type; | |
182 | ||
e9bb382b | 183 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 8); |
209bd28e UW |
184 | append_flags_type_flag (type, 0, "NXA"); |
185 | append_flags_type_flag (type, 1, "DZA"); | |
186 | append_flags_type_flag (type, 2, "UFA"); | |
187 | append_flags_type_flag (type, 3, "OFA"); | |
188 | append_flags_type_flag (type, 4, "NVA"); | |
189 | append_flags_type_flag (type, 5, "NXC"); | |
190 | append_flags_type_flag (type, 6, "DZC"); | |
191 | append_flags_type_flag (type, 7, "UFC"); | |
192 | append_flags_type_flag (type, 8, "OFC"); | |
193 | append_flags_type_flag (type, 9, "NVC"); | |
194 | append_flags_type_flag (type, 22, "NS"); | |
195 | append_flags_type_flag (type, 23, "NXM"); | |
196 | append_flags_type_flag (type, 24, "DZM"); | |
197 | append_flags_type_flag (type, 25, "UFM"); | |
198 | append_flags_type_flag (type, 26, "OFM"); | |
199 | append_flags_type_flag (type, 27, "NVM"); | |
200 | ||
201 | tdep->sparc64_fsr_type = type; | |
202 | } | |
203 | ||
204 | return tdep->sparc64_fsr_type; | |
205 | } | |
206 | ||
207 | static struct type * | |
208 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 209 | { |
209bd28e UW |
210 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
211 | ||
212 | if (!tdep->sparc64_fprs_type) | |
213 | { | |
214 | struct type *type; | |
215 | ||
e9bb382b | 216 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 8); |
209bd28e UW |
217 | append_flags_type_flag (type, 0, "DL"); |
218 | append_flags_type_flag (type, 1, "DU"); | |
219 | append_flags_type_flag (type, 2, "FEF"); | |
220 | ||
221 | tdep->sparc64_fprs_type = type; | |
222 | } | |
223 | ||
224 | return tdep->sparc64_fprs_type; | |
fd936806 | 225 | } |
8b39fe56 | 226 | |
209bd28e | 227 | |
8b39fe56 | 228 | /* Register information. */ |
7a36499a IR |
229 | #define SPARC64_FPU_REGISTERS \ |
230 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
231 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
232 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
233 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
234 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \ | |
235 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62" | |
236 | #define SPARC64_CP0_REGISTERS \ | |
237 | "pc", "npc", \ | |
238 | /* FIXME: Give "state" a name until we start using register groups. */ \ | |
239 | "state", \ | |
240 | "fsr", \ | |
241 | "fprs", \ | |
242 | "y" | |
8b39fe56 | 243 | |
6707b003 | 244 | static const char *sparc64_register_names[] = |
8b39fe56 | 245 | { |
7a36499a IR |
246 | SPARC_CORE_REGISTERS, |
247 | SPARC64_FPU_REGISTERS, | |
248 | SPARC64_CP0_REGISTERS | |
8b39fe56 MK |
249 | }; |
250 | ||
251 | /* Total number of registers. */ | |
6707b003 | 252 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
253 | |
254 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
255 | registers as "psuedo" registers. */ | |
256 | ||
6707b003 | 257 | static const char *sparc64_pseudo_register_names[] = |
8b39fe56 | 258 | { |
6707b003 UW |
259 | "cwp", "pstate", "asi", "ccr", |
260 | ||
261 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
262 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
263 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
264 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
265 | ||
266 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
267 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
268 | }; |
269 | ||
270 | /* Total number of pseudo registers. */ | |
6707b003 | 271 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 | 272 | |
7a36499a IR |
273 | /* Return the name of pseudo register REGNUM. */ |
274 | ||
275 | static const char * | |
276 | sparc64_pseudo_register_name (struct gdbarch *gdbarch, int regnum) | |
277 | { | |
278 | regnum -= gdbarch_num_regs (gdbarch); | |
279 | ||
280 | if (regnum < SPARC64_NUM_PSEUDO_REGS) | |
281 | return sparc64_pseudo_register_names[regnum]; | |
282 | ||
283 | internal_error (__FILE__, __LINE__, | |
284 | _("sparc64_pseudo_register_name: bad register number %d"), | |
285 | regnum); | |
286 | } | |
287 | ||
8b39fe56 MK |
288 | /* Return the name of register REGNUM. */ |
289 | ||
290 | static const char * | |
d93859e2 | 291 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 | 292 | { |
7a36499a | 293 | if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) |
6707b003 | 294 | return sparc64_register_names[regnum]; |
8b39fe56 | 295 | |
7a36499a IR |
296 | return sparc64_pseudo_register_name (gdbarch, regnum); |
297 | } | |
298 | ||
299 | /* Return the GDB type object for the "standard" data type of data in | |
300 | pseudo register REGNUM. */ | |
301 | ||
302 | static struct type * | |
303 | sparc64_pseudo_register_type (struct gdbarch *gdbarch, int regnum) | |
304 | { | |
305 | regnum -= gdbarch_num_regs (gdbarch); | |
306 | ||
307 | if (regnum == SPARC64_CWP_REGNUM) | |
308 | return builtin_type (gdbarch)->builtin_int64; | |
309 | if (regnum == SPARC64_PSTATE_REGNUM) | |
310 | return sparc64_pstate_type (gdbarch); | |
311 | if (regnum == SPARC64_ASI_REGNUM) | |
312 | return builtin_type (gdbarch)->builtin_int64; | |
313 | if (regnum == SPARC64_CCR_REGNUM) | |
314 | return builtin_type (gdbarch)->builtin_int64; | |
315 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
316 | return builtin_type (gdbarch)->builtin_double; | |
317 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
318 | return builtin_type (gdbarch)->builtin_long_double; | |
8b39fe56 | 319 | |
7a36499a IR |
320 | internal_error (__FILE__, __LINE__, |
321 | _("sparc64_pseudo_register_type: bad register number %d"), | |
322 | regnum); | |
8b39fe56 MK |
323 | } |
324 | ||
325 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 326 | register REGNUM. */ |
8b39fe56 MK |
327 | |
328 | static struct type * | |
329 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
330 | { | |
6707b003 | 331 | /* Raw registers. */ |
6707b003 | 332 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) |
0dfff4cb | 333 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 334 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 335 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 336 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 337 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 338 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 339 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 340 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 341 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
342 | /* This raw register contains the contents of %cwp, %pstate, %asi |
343 | and %ccr as laid out in a %tstate register. */ | |
344 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 345 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 346 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 347 | return sparc64_fsr_type (gdbarch); |
6707b003 | 348 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 349 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
350 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
351 | reserved and always read as 0." */ | |
352 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 353 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
354 | |
355 | /* Pseudo registers. */ | |
7a36499a IR |
356 | if (regnum >= gdbarch_num_regs (gdbarch)) |
357 | return sparc64_pseudo_register_type (gdbarch, regnum); | |
6707b003 UW |
358 | |
359 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
360 | } |
361 | ||
05d1431c | 362 | static enum register_status |
8b39fe56 MK |
363 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
364 | struct regcache *regcache, | |
e1613aba | 365 | int regnum, gdb_byte *buf) |
8b39fe56 | 366 | { |
e17a4113 | 367 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
368 | enum register_status status; |
369 | ||
7a36499a | 370 | regnum -= gdbarch_num_regs (gdbarch); |
8b39fe56 MK |
371 | |
372 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
373 | { | |
374 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
05d1431c PA |
375 | status = regcache_raw_read (regcache, regnum, buf); |
376 | if (status == REG_VALID) | |
377 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
378 | return status; | |
8b39fe56 MK |
379 | } |
380 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
381 | { | |
382 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
05d1431c | 383 | return regcache_raw_read (regcache, regnum, buf); |
8b39fe56 MK |
384 | } |
385 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
386 | { | |
387 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c PA |
388 | |
389 | status = regcache_raw_read (regcache, regnum, buf); | |
390 | if (status == REG_VALID) | |
391 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
392 | if (status == REG_VALID) | |
393 | status = regcache_raw_read (regcache, regnum + 2, buf + 8); | |
394 | if (status == REG_VALID) | |
395 | status = regcache_raw_read (regcache, regnum + 3, buf + 12); | |
396 | ||
397 | return status; | |
8b39fe56 MK |
398 | } |
399 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
400 | { | |
401 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c PA |
402 | |
403 | status = regcache_raw_read (regcache, regnum, buf); | |
404 | if (status == REG_VALID) | |
405 | status = regcache_raw_read (regcache, regnum + 1, buf + 8); | |
406 | ||
407 | return status; | |
8b39fe56 MK |
408 | } |
409 | else if (regnum == SPARC64_CWP_REGNUM | |
410 | || regnum == SPARC64_PSTATE_REGNUM | |
411 | || regnum == SPARC64_ASI_REGNUM | |
412 | || regnum == SPARC64_CCR_REGNUM) | |
413 | { | |
414 | ULONGEST state; | |
415 | ||
05d1431c PA |
416 | status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); |
417 | if (status != REG_VALID) | |
418 | return status; | |
419 | ||
8b39fe56 MK |
420 | switch (regnum) |
421 | { | |
3567a8ea | 422 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
423 | state = (state >> 0) & ((1 << 5) - 1); |
424 | break; | |
3567a8ea | 425 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
426 | state = (state >> 8) & ((1 << 12) - 1); |
427 | break; | |
3567a8ea | 428 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
429 | state = (state >> 24) & ((1 << 8) - 1); |
430 | break; | |
3567a8ea | 431 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
432 | state = (state >> 32) & ((1 << 8) - 1); |
433 | break; | |
434 | } | |
e17a4113 | 435 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 436 | } |
05d1431c PA |
437 | |
438 | return REG_VALID; | |
8b39fe56 MK |
439 | } |
440 | ||
441 | static void | |
442 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
443 | struct regcache *regcache, | |
e1613aba | 444 | int regnum, const gdb_byte *buf) |
8b39fe56 | 445 | { |
e17a4113 | 446 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
7a36499a IR |
447 | |
448 | regnum -= gdbarch_num_regs (gdbarch); | |
8b39fe56 MK |
449 | |
450 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
451 | { | |
452 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
453 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 454 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
455 | } |
456 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
457 | { | |
458 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
459 | regcache_raw_write (regcache, regnum, buf); | |
460 | } | |
461 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
462 | { | |
463 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
464 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
465 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
466 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
467 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
468 | } |
469 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
470 | { | |
471 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
472 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 473 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 474 | } |
3567a8ea MK |
475 | else if (regnum == SPARC64_CWP_REGNUM |
476 | || regnum == SPARC64_PSTATE_REGNUM | |
477 | || regnum == SPARC64_ASI_REGNUM | |
478 | || regnum == SPARC64_CCR_REGNUM) | |
479 | { | |
480 | ULONGEST state, bits; | |
481 | ||
482 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 483 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
484 | switch (regnum) |
485 | { | |
486 | case SPARC64_CWP_REGNUM: | |
487 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
488 | break; | |
489 | case SPARC64_PSTATE_REGNUM: | |
490 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
491 | break; | |
492 | case SPARC64_ASI_REGNUM: | |
493 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
494 | break; | |
495 | case SPARC64_CCR_REGNUM: | |
496 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
497 | break; | |
498 | } | |
499 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
500 | } | |
8b39fe56 | 501 | } |
8b39fe56 MK |
502 | \f |
503 | ||
8b39fe56 MK |
504 | /* Return PC of first real instruction of the function starting at |
505 | START_PC. */ | |
506 | ||
507 | static CORE_ADDR | |
6093d2eb | 508 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
509 | { |
510 | struct symtab_and_line sal; | |
511 | CORE_ADDR func_start, func_end; | |
386c036b | 512 | struct sparc_frame_cache cache; |
8b39fe56 MK |
513 | |
514 | /* This is the preferred method, find the end of the prologue by | |
515 | using the debugging information. */ | |
516 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
517 | { | |
518 | sal = find_pc_line (func_start, 0); | |
519 | ||
520 | if (sal.end < func_end | |
521 | && start_pc <= sal.end) | |
522 | return sal.end; | |
523 | } | |
524 | ||
be8626e0 MD |
525 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
526 | &cache); | |
8b39fe56 MK |
527 | } |
528 | ||
529 | /* Normal frames. */ | |
530 | ||
386c036b | 531 | static struct sparc_frame_cache * |
236369e7 | 532 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 533 | { |
236369e7 | 534 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
535 | } |
536 | ||
537 | static void | |
236369e7 | 538 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
539 | struct frame_id *this_id) |
540 | { | |
386c036b | 541 | struct sparc_frame_cache *cache = |
236369e7 | 542 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
543 | |
544 | /* This marks the outermost frame. */ | |
545 | if (cache->base == 0) | |
546 | return; | |
547 | ||
548 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
549 | } | |
550 | ||
236369e7 JB |
551 | static struct value * |
552 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
553 | int regnum) | |
8b39fe56 | 554 | { |
e17a4113 | 555 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 556 | struct sparc_frame_cache *cache = |
236369e7 | 557 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
558 | |
559 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
560 | { | |
236369e7 | 561 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 562 | |
369c397b JB |
563 | regnum = |
564 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
565 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
566 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
567 | } |
568 | ||
f700a364 MK |
569 | /* Handle StackGhost. */ |
570 | { | |
e17a4113 | 571 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
572 | |
573 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
574 | { | |
236369e7 JB |
575 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
576 | ULONGEST i7; | |
577 | ||
578 | /* Read the value in from memory. */ | |
579 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
580 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
581 | } |
582 | } | |
583 | ||
369c397b | 584 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 585 | in the register save area. */ |
369c397b JB |
586 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
587 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 588 | { |
236369e7 | 589 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 590 | |
236369e7 | 591 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
592 | } |
593 | ||
369c397b JB |
594 | /* The previous frame's `out' registers may be accessible as the current |
595 | frame's `in' registers. */ | |
596 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
597 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
598 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
599 | ||
236369e7 | 600 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
601 | } |
602 | ||
603 | static const struct frame_unwind sparc64_frame_unwind = | |
604 | { | |
605 | NORMAL_FRAME, | |
8fbca658 | 606 | default_frame_unwind_stop_reason, |
8b39fe56 | 607 | sparc64_frame_this_id, |
236369e7 JB |
608 | sparc64_frame_prev_register, |
609 | NULL, | |
610 | default_frame_sniffer | |
8b39fe56 | 611 | }; |
8b39fe56 MK |
612 | \f |
613 | ||
614 | static CORE_ADDR | |
236369e7 | 615 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 616 | { |
386c036b | 617 | struct sparc_frame_cache *cache = |
236369e7 | 618 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 619 | |
5b2d44a0 | 620 | return cache->base; |
8b39fe56 MK |
621 | } |
622 | ||
623 | static const struct frame_base sparc64_frame_base = | |
624 | { | |
625 | &sparc64_frame_unwind, | |
626 | sparc64_frame_base_address, | |
627 | sparc64_frame_base_address, | |
628 | sparc64_frame_base_address | |
629 | }; | |
8b39fe56 MK |
630 | \f |
631 | /* Check whether TYPE must be 16-byte aligned. */ | |
632 | ||
633 | static int | |
634 | sparc64_16_byte_align_p (struct type *type) | |
635 | { | |
636 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) | |
637 | return 1; | |
638 | ||
639 | if (sparc64_structure_or_union_p (type)) | |
640 | { | |
641 | int i; | |
642 | ||
643 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
644 | { |
645 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
646 | ||
647 | if (sparc64_16_byte_align_p (subtype)) | |
648 | return 1; | |
649 | } | |
8b39fe56 MK |
650 | } |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
655 | /* Store floating fields of element ELEMENT of an "parameter array" | |
656 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
657 | apropriate registers of REGCACHE. This function can be called | |
658 | recursively and therefore handles floating types in addition to | |
659 | structures. */ | |
660 | ||
661 | static void | |
662 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 663 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 | 664 | { |
7a36499a | 665 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
fe10a582 DM |
666 | int len = TYPE_LENGTH (type); |
667 | ||
8b39fe56 MK |
668 | gdb_assert (element < 16); |
669 | ||
fe10a582 DM |
670 | if (sparc64_floating_p (type) |
671 | || (sparc64_complex_floating_p (type) && len <= 16)) | |
8b39fe56 | 672 | { |
8b39fe56 MK |
673 | int regnum; |
674 | ||
675 | if (len == 16) | |
676 | { | |
677 | gdb_assert (bitpos == 0); | |
678 | gdb_assert ((element % 2) == 0); | |
679 | ||
7a36499a | 680 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM + element / 2; |
8b39fe56 MK |
681 | regcache_cooked_write (regcache, regnum, valbuf); |
682 | } | |
683 | else if (len == 8) | |
684 | { | |
685 | gdb_assert (bitpos == 0 || bitpos == 64); | |
686 | ||
7a36499a IR |
687 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
688 | + element + bitpos / 64; | |
8b39fe56 MK |
689 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); |
690 | } | |
691 | else | |
692 | { | |
693 | gdb_assert (len == 4); | |
694 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
695 | ||
696 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
697 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
698 | } | |
699 | } | |
700 | else if (sparc64_structure_or_union_p (type)) | |
701 | { | |
702 | int i; | |
703 | ||
704 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
705 | { |
706 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
707 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
708 | ||
709 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
710 | element, subpos); | |
711 | } | |
200cc553 MK |
712 | |
713 | /* GCC has an interesting bug. If TYPE is a structure that has | |
714 | a single `float' member, GCC doesn't treat it as a structure | |
715 | at all, but rather as an ordinary `float' argument. This | |
716 | argument will be stored in %f1, as required by the psABI. | |
717 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
718 | be stored in %f0. This bug is present in GCC 3.3.2, but |
719 | probably in older releases to. To appease GCC, if a | |
720 | structure has only a single `float' member, we store its | |
721 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
722 | if (TYPE_NFIELDS (type) == 1) |
723 | { | |
724 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
725 | ||
726 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
727 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
728 | } | |
8b39fe56 MK |
729 | } |
730 | } | |
731 | ||
732 | /* Fetch floating fields from a variable of type TYPE from the | |
733 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
734 | in VALBUF. This function can be called recursively and therefore | |
735 | handles floating types in addition to structures. */ | |
736 | ||
737 | static void | |
738 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 739 | gdb_byte *valbuf, int bitpos) |
8b39fe56 | 740 | { |
7a36499a IR |
741 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
742 | ||
8b39fe56 MK |
743 | if (sparc64_floating_p (type)) |
744 | { | |
745 | int len = TYPE_LENGTH (type); | |
746 | int regnum; | |
747 | ||
748 | if (len == 16) | |
749 | { | |
750 | gdb_assert (bitpos == 0 || bitpos == 128); | |
751 | ||
7a36499a IR |
752 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
753 | + bitpos / 128; | |
8b39fe56 MK |
754 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
755 | } | |
756 | else if (len == 8) | |
757 | { | |
758 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
759 | ||
7a36499a | 760 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + bitpos / 64; |
8b39fe56 MK |
761 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
762 | } | |
763 | else | |
764 | { | |
765 | gdb_assert (len == 4); | |
766 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
767 | ||
768 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
769 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
770 | } | |
771 | } | |
772 | else if (sparc64_structure_or_union_p (type)) | |
773 | { | |
774 | int i; | |
775 | ||
776 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
777 | { |
778 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
779 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
780 | ||
781 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
782 | } | |
8b39fe56 MK |
783 | } |
784 | } | |
785 | ||
786 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
787 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
788 | ||
789 | static CORE_ADDR | |
790 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
791 | struct value **args, CORE_ADDR sp, | |
792 | int struct_return, CORE_ADDR struct_addr) | |
793 | { | |
df4df182 | 794 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
795 | /* Number of extended words in the "parameter array". */ |
796 | int num_elements = 0; | |
797 | int element = 0; | |
798 | int i; | |
799 | ||
800 | /* Take BIAS into account. */ | |
801 | sp += BIAS; | |
802 | ||
803 | /* First we calculate the number of extended words in the "parameter | |
804 | array". While doing so we also convert some of the arguments. */ | |
805 | ||
806 | if (struct_return) | |
807 | num_elements++; | |
808 | ||
809 | for (i = 0; i < nargs; i++) | |
810 | { | |
4991999e | 811 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
812 | int len = TYPE_LENGTH (type); |
813 | ||
fb57d452 MK |
814 | if (sparc64_structure_or_union_p (type) |
815 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 MK |
816 | { |
817 | /* Structure or Union arguments. */ | |
818 | if (len <= 16) | |
819 | { | |
820 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
821 | num_elements++; | |
822 | num_elements += ((len + 7) / 8); | |
823 | } | |
824 | else | |
825 | { | |
826 | /* The psABI says that "Structures or unions larger than | |
827 | sixteen bytes are copied by the caller and passed | |
828 | indirectly; the caller will pass the address of a | |
829 | correctly aligned structure value. This sixty-four | |
830 | bit address will occupy one word in the parameter | |
831 | array, and may be promoted to an %o register like any | |
832 | other pointer value." Allocate memory for these | |
833 | values on the stack. */ | |
834 | sp -= len; | |
835 | ||
836 | /* Use 16-byte alignment for these values. That's | |
837 | always correct, and wasting a few bytes shouldn't be | |
838 | a problem. */ | |
839 | sp &= ~0xf; | |
840 | ||
0fd88904 | 841 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
842 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
843 | num_elements++; | |
844 | } | |
845 | } | |
cdc7b32f | 846 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
847 | { |
848 | /* Floating arguments. */ | |
8b39fe56 MK |
849 | if (len == 16) |
850 | { | |
851 | /* The psABI says that "Each quad-precision parameter | |
852 | value will be assigned to two extended words in the | |
853 | parameter array. */ | |
854 | num_elements += 2; | |
855 | ||
856 | /* The psABI says that "Long doubles must be | |
857 | quad-aligned, and thus a hole might be introduced | |
858 | into the parameter array to force alignment." Skip | |
859 | an element if necessary. */ | |
49caec94 | 860 | if ((num_elements % 2) && sparc64_16_byte_align_p (type)) |
8b39fe56 MK |
861 | num_elements++; |
862 | } | |
863 | else | |
864 | num_elements++; | |
865 | } | |
866 | else | |
867 | { | |
868 | /* Integral and pointer arguments. */ | |
869 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
870 | ||
871 | /* The psABI says that "Each argument value of integral type | |
872 | smaller than an extended word will be widened by the | |
873 | caller to an extended word according to the signed-ness | |
874 | of the argument type." */ | |
875 | if (len < 8) | |
df4df182 UW |
876 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
877 | args[i]); | |
8b39fe56 MK |
878 | num_elements++; |
879 | } | |
880 | } | |
881 | ||
882 | /* Allocate the "parameter array". */ | |
883 | sp -= num_elements * 8; | |
884 | ||
885 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
886 | sp &= ~0xf; | |
887 | ||
888 | /* Now we store the arguments in to the "paramater array". Some | |
889 | Integer or Pointer arguments and Structure or Union arguments | |
890 | will be passed in %o registers. Some Floating arguments and | |
891 | floating members of structures are passed in floating-point | |
892 | registers. However, for functions with variable arguments, | |
893 | floating arguments are stored in an %0 register, and for | |
894 | functions without a prototype floating arguments are stored in | |
895 | both a floating-point and an %o registers, or a floating-point | |
896 | register and memory. To simplify the logic here we always pass | |
897 | arguments in memory, an %o register, and a floating-point | |
898 | register if appropriate. This should be no problem since the | |
899 | contents of any unused memory or registers in the "parameter | |
900 | array" are undefined. */ | |
901 | ||
902 | if (struct_return) | |
903 | { | |
904 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
905 | element++; | |
906 | } | |
907 | ||
908 | for (i = 0; i < nargs; i++) | |
909 | { | |
e1613aba | 910 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 911 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
912 | int len = TYPE_LENGTH (type); |
913 | int regnum = -1; | |
e1613aba | 914 | gdb_byte buf[16]; |
8b39fe56 | 915 | |
fb57d452 MK |
916 | if (sparc64_structure_or_union_p (type) |
917 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 | 918 | { |
49caec94 | 919 | /* Structure, Union or long double Complex arguments. */ |
8b39fe56 MK |
920 | gdb_assert (len <= 16); |
921 | memset (buf, 0, sizeof (buf)); | |
cfcb22a5 SM |
922 | memcpy (buf, valbuf, len); |
923 | valbuf = buf; | |
8b39fe56 MK |
924 | |
925 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
926 | element++; | |
927 | ||
928 | if (element < 6) | |
929 | { | |
930 | regnum = SPARC_O0_REGNUM + element; | |
931 | if (len > 8 && element < 5) | |
932 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
933 | } | |
934 | ||
935 | if (element < 16) | |
936 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
937 | } | |
49caec94 JM |
938 | else if (sparc64_complex_floating_p (type)) |
939 | { | |
940 | /* Float Complex or double Complex arguments. */ | |
941 | if (element < 16) | |
942 | { | |
7a36499a | 943 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + element; |
49caec94 JM |
944 | |
945 | if (len == 16) | |
946 | { | |
7a36499a | 947 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D30_REGNUM) |
49caec94 | 948 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
7a36499a | 949 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D10_REGNUM) |
49caec94 JM |
950 | regcache_cooked_write (regcache, |
951 | SPARC_O0_REGNUM + element + 1, | |
952 | valbuf + 8); | |
953 | } | |
954 | } | |
955 | } | |
956 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
957 | { |
958 | /* Floating arguments. */ | |
959 | if (len == 16) | |
960 | { | |
961 | if (element % 2) | |
962 | element++; | |
963 | if (element < 16) | |
7a36499a IR |
964 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
965 | + element / 2; | |
8b39fe56 MK |
966 | } |
967 | else if (len == 8) | |
968 | { | |
969 | if (element < 16) | |
7a36499a IR |
970 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
971 | + element; | |
8b39fe56 | 972 | } |
fe10a582 | 973 | else if (len == 4) |
8b39fe56 MK |
974 | { |
975 | /* The psABI says "Each single-precision parameter value | |
976 | will be assigned to one extended word in the | |
977 | parameter array, and right-justified within that | |
cdc7b32f | 978 | word; the left half (even float register) is |
8b39fe56 MK |
979 | undefined." Even though the psABI says that "the |
980 | left half is undefined", set it to zero here. */ | |
981 | memset (buf, 0, 4); | |
8ada74e3 MK |
982 | memcpy (buf + 4, valbuf, 4); |
983 | valbuf = buf; | |
8b39fe56 MK |
984 | len = 8; |
985 | if (element < 16) | |
7a36499a IR |
986 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
987 | + element; | |
8b39fe56 MK |
988 | } |
989 | } | |
990 | else | |
991 | { | |
992 | /* Integral and pointer arguments. */ | |
993 | gdb_assert (len == 8); | |
994 | if (element < 6) | |
995 | regnum = SPARC_O0_REGNUM + element; | |
996 | } | |
997 | ||
998 | if (regnum != -1) | |
999 | { | |
1000 | regcache_cooked_write (regcache, regnum, valbuf); | |
1001 | ||
1002 | /* If we're storing the value in a floating-point register, | |
1003 | also store it in the corresponding %0 register(s). */ | |
7a36499a IR |
1004 | if (regnum >= gdbarch_num_regs (gdbarch)) |
1005 | { | |
1006 | regnum -= gdbarch_num_regs (gdbarch); | |
1007 | ||
1008 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
1009 | { | |
1010 | gdb_assert (element < 6); | |
1011 | regnum = SPARC_O0_REGNUM + element; | |
1012 | regcache_cooked_write (regcache, regnum, valbuf); | |
1013 | } | |
1014 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
1015 | { | |
1016 | gdb_assert (element < 5); | |
1017 | regnum = SPARC_O0_REGNUM + element; | |
1018 | regcache_cooked_write (regcache, regnum, valbuf); | |
1019 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
1020 | } | |
1021 | } | |
8b39fe56 MK |
1022 | } |
1023 | ||
c4f2d4d7 | 1024 | /* Always store the argument in memory. */ |
8b39fe56 MK |
1025 | write_memory (sp + element * 8, valbuf, len); |
1026 | element += ((len + 7) / 8); | |
1027 | } | |
1028 | ||
1029 | gdb_assert (element == num_elements); | |
1030 | ||
1031 | /* Take BIAS into account. */ | |
1032 | sp -= BIAS; | |
1033 | return sp; | |
1034 | } | |
1035 | ||
49a45ecf JB |
1036 | static CORE_ADDR |
1037 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
1038 | { | |
1039 | /* The ABI requires 16-byte alignment. */ | |
1040 | return address & ~0xf; | |
1041 | } | |
1042 | ||
8b39fe56 | 1043 | static CORE_ADDR |
7d9b040b | 1044 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
1045 | struct regcache *regcache, CORE_ADDR bp_addr, |
1046 | int nargs, struct value **args, CORE_ADDR sp, | |
1047 | int struct_return, CORE_ADDR struct_addr) | |
1048 | { | |
1049 | /* Set return address. */ | |
1050 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
1051 | ||
1052 | /* Set up function arguments. */ | |
1053 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
1054 | struct_return, struct_addr); | |
1055 | ||
1056 | /* Allocate the register save area. */ | |
1057 | sp -= 16 * 8; | |
1058 | ||
1059 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 1060 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
1061 | |
1062 | /* Finally, update the stack pointer. */ | |
1063 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
1064 | ||
5b2d44a0 | 1065 | return sp + BIAS; |
8b39fe56 MK |
1066 | } |
1067 | \f | |
1068 | ||
1069 | /* Extract from an array REGBUF containing the (raw) register state, a | |
1070 | function return value of TYPE, and copy that into VALBUF. */ | |
1071 | ||
1072 | static void | |
1073 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1074 | gdb_byte *valbuf) |
8b39fe56 MK |
1075 | { |
1076 | int len = TYPE_LENGTH (type); | |
e1613aba | 1077 | gdb_byte buf[32]; |
8b39fe56 MK |
1078 | int i; |
1079 | ||
1080 | if (sparc64_structure_or_union_p (type)) | |
1081 | { | |
1082 | /* Structure or Union return values. */ | |
1083 | gdb_assert (len <= 32); | |
1084 | ||
1085 | for (i = 0; i < ((len + 7) / 8); i++) | |
1086 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1087 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
1088 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
1089 | memcpy (valbuf, buf, len); | |
1090 | } | |
cdc7b32f | 1091 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1092 | { |
1093 | /* Floating return values. */ | |
1094 | for (i = 0; i < len / 4; i++) | |
1095 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1096 | memcpy (valbuf, buf, len); | |
1097 | } | |
4bd87714 JB |
1098 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1099 | { | |
1100 | /* Small arrays are returned the same way as small structures. */ | |
1101 | gdb_assert (len <= 32); | |
1102 | ||
1103 | for (i = 0; i < ((len + 7) / 8); i++) | |
1104 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1105 | memcpy (valbuf, buf, len); | |
1106 | } | |
8b39fe56 MK |
1107 | else |
1108 | { | |
1109 | /* Integral and pointer return values. */ | |
1110 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1111 | ||
1112 | /* Just stripping off any unused bytes should preserve the | |
1113 | signed-ness just fine. */ | |
1114 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1115 | memcpy (valbuf, buf + 8 - len, len); | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | /* Write into the appropriate registers a function return value stored | |
1120 | in VALBUF of type TYPE. */ | |
1121 | ||
1122 | static void | |
1123 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1124 | const gdb_byte *valbuf) |
8b39fe56 MK |
1125 | { |
1126 | int len = TYPE_LENGTH (type); | |
e1613aba | 1127 | gdb_byte buf[16]; |
8b39fe56 MK |
1128 | int i; |
1129 | ||
1130 | if (sparc64_structure_or_union_p (type)) | |
1131 | { | |
1132 | /* Structure or Union return values. */ | |
1133 | gdb_assert (len <= 32); | |
1134 | ||
1135 | /* Simplify matters by storing the complete value (including | |
1136 | floating members) into %o0 and %o1. Floating members are | |
1137 | also store in the appropriate floating-point registers. */ | |
1138 | memset (buf, 0, sizeof (buf)); | |
1139 | memcpy (buf, valbuf, len); | |
1140 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1141 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1142 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1143 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1144 | } | |
fe10a582 | 1145 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1146 | { |
1147 | /* Floating return values. */ | |
1148 | memcpy (buf, valbuf, len); | |
1149 | for (i = 0; i < len / 4; i++) | |
1150 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1151 | } | |
4bd87714 JB |
1152 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1153 | { | |
1154 | /* Small arrays are returned the same way as small structures. */ | |
1155 | gdb_assert (len <= 32); | |
1156 | ||
1157 | memset (buf, 0, sizeof (buf)); | |
1158 | memcpy (buf, valbuf, len); | |
1159 | for (i = 0; i < ((len + 7) / 8); i++) | |
1160 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1161 | } | |
8b39fe56 MK |
1162 | else |
1163 | { | |
1164 | /* Integral and pointer return values. */ | |
1165 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1166 | ||
1167 | /* ??? Do we need to do any sign-extension here? */ | |
1168 | memset (buf, 0, 8); | |
1169 | memcpy (buf + 8 - len, valbuf, len); | |
1170 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1171 | } | |
1172 | } | |
1173 | ||
60af1db2 | 1174 | static enum return_value_convention |
6a3a010b | 1175 | sparc64_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
1176 | struct type *type, struct regcache *regcache, |
1177 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1178 | { |
60af1db2 MK |
1179 | if (TYPE_LENGTH (type) > 32) |
1180 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1181 | ||
1182 | if (readbuf) | |
1183 | sparc64_extract_return_value (type, regcache, readbuf); | |
1184 | if (writebuf) | |
1185 | sparc64_store_return_value (type, regcache, writebuf); | |
1186 | ||
1187 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1188 | } |
8b39fe56 | 1189 | \f |
8b39fe56 | 1190 | |
02a71ae8 MK |
1191 | static void |
1192 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1193 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1194 | struct frame_info *this_frame) |
02a71ae8 MK |
1195 | { |
1196 | switch (regnum) | |
1197 | { | |
1198 | case SPARC_G0_REGNUM: | |
1199 | /* Since %g0 is always zero, there is no point in saving it, and | |
1200 | people will be inclined omit it from the CFI. Make sure we | |
1201 | don't warn about that. */ | |
1202 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1203 | break; | |
1204 | case SPARC_SP_REGNUM: | |
1205 | reg->how = DWARF2_FRAME_REG_CFA; | |
1206 | break; | |
1207 | case SPARC64_PC_REGNUM: | |
1208 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1209 | reg->loc.offset = 8; | |
1210 | break; | |
1211 | case SPARC64_NPC_REGNUM: | |
1212 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1213 | reg->loc.offset = 12; | |
1214 | break; | |
1215 | } | |
1216 | } | |
1217 | ||
8b39fe56 | 1218 | void |
386c036b | 1219 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1220 | { |
386c036b | 1221 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1222 | |
386c036b MK |
1223 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1224 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
8b39fe56 | 1225 | |
386c036b | 1226 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1227 | set_gdbarch_long_bit (gdbarch, 64); |
1228 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1229 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 MK |
1230 | |
1231 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); | |
1232 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1233 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1234 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
1235 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); | |
1236 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1237 | ||
1238 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1239 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1240 | |
1241 | /* Call dummy code. */ | |
49a45ecf | 1242 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1243 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1244 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1245 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1246 | ||
60af1db2 | 1247 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1248 | set_gdbarch_stabs_argument_has_addr |
1249 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1250 | |
1251 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
c9cf6e20 | 1252 | set_gdbarch_stack_frame_destroyed_p (gdbarch, sparc_stack_frame_destroyed_p); |
8b39fe56 | 1253 | |
02a71ae8 MK |
1254 | /* Hook in the DWARF CFI frame unwinder. */ |
1255 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1256 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1257 | StackGhost issues have been resolved. */ | |
1258 | ||
236369e7 | 1259 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1260 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
386c036b MK |
1261 | } |
1262 | \f | |
8b39fe56 | 1263 | |
386c036b | 1264 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1265 | |
386c036b MK |
1266 | #define TSTATE_CWP 0x000000000000001fULL |
1267 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1268 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1269 | |
386c036b MK |
1270 | #define PSR_S 0x00000080 |
1271 | #define PSR_ICC 0x00f00000 | |
1272 | #define PSR_VERS 0x0f000000 | |
1273 | #define PSR_IMPL 0xf0000000 | |
1274 | #define PSR_V8PLUS 0xff000000 | |
1275 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1276 | |
3567a8ea | 1277 | void |
b4fd25c9 | 1278 | sparc64_supply_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1279 | struct regcache *regcache, |
1280 | int regnum, const void *gregs) | |
8b39fe56 | 1281 | { |
e17a4113 UW |
1282 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1283 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1284 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1285 | const gdb_byte *regs = (const gdb_byte *) gregs; |
22e74ef9 | 1286 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1287 | int i; |
1288 | ||
386c036b | 1289 | if (sparc32) |
8b39fe56 | 1290 | { |
386c036b MK |
1291 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1292 | { | |
b4fd25c9 | 1293 | int offset = gregmap->r_tstate_offset; |
386c036b | 1294 | ULONGEST tstate, psr; |
e1613aba | 1295 | gdb_byte buf[4]; |
386c036b | 1296 | |
e17a4113 | 1297 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1298 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1299 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1300 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1301 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1302 | } | |
1303 | ||
1304 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1305 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 1306 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
1307 | |
1308 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1309 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 1310 | regs + gregmap->r_npc_offset + 4); |
8b39fe56 | 1311 | |
386c036b | 1312 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1313 | { |
b4fd25c9 | 1314 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 1315 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1316 | } |
1317 | } | |
1318 | else | |
1319 | { | |
386c036b MK |
1320 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1321 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 1322 | regs + gregmap->r_tstate_offset); |
8b39fe56 | 1323 | |
386c036b MK |
1324 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1325 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 1326 | regs + gregmap->r_pc_offset); |
386c036b MK |
1327 | |
1328 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1329 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 1330 | regs + gregmap->r_npc_offset); |
386c036b MK |
1331 | |
1332 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1333 | { |
e1613aba | 1334 | gdb_byte buf[8]; |
386c036b MK |
1335 | |
1336 | memset (buf, 0, 8); | |
b4fd25c9 AA |
1337 | memcpy (buf + 8 - gregmap->r_y_size, |
1338 | regs + gregmap->r_y_offset, gregmap->r_y_size); | |
386c036b | 1339 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); |
3567a8ea | 1340 | } |
8b39fe56 | 1341 | |
386c036b | 1342 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
b4fd25c9 | 1343 | && gregmap->r_fprs_offset != -1) |
386c036b | 1344 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 1345 | regs + gregmap->r_fprs_offset); |
386c036b MK |
1346 | } |
1347 | ||
1348 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
22e74ef9 | 1349 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero); |
386c036b MK |
1350 | |
1351 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1352 | { | |
b4fd25c9 | 1353 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1354 | |
1355 | if (sparc32) | |
1356 | offset += 4; | |
1357 | ||
1358 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1359 | { |
3567a8ea | 1360 | if (regnum == i || regnum == -1) |
386c036b MK |
1361 | regcache_raw_supply (regcache, i, regs + offset); |
1362 | offset += 8; | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1367 | { | |
1368 | /* Not all of the register set variants include Locals and | |
1369 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 1370 | if (gregmap->r_l0_offset == -1) |
386c036b MK |
1371 | { |
1372 | ULONGEST sp; | |
1373 | ||
1374 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1375 | sparc_supply_rwindow (regcache, sp, regnum); | |
1376 | } | |
1377 | else | |
1378 | { | |
b4fd25c9 | 1379 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1380 | |
1381 | if (sparc32) | |
1382 | offset += 4; | |
1383 | ||
1384 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1385 | { |
386c036b MK |
1386 | if (regnum == i || regnum == -1) |
1387 | regcache_raw_supply (regcache, i, regs + offset); | |
1388 | offset += 8; | |
3567a8ea | 1389 | } |
8b39fe56 MK |
1390 | } |
1391 | } | |
1392 | } | |
1393 | ||
1394 | void | |
b4fd25c9 | 1395 | sparc64_collect_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1396 | const struct regcache *regcache, |
1397 | int regnum, void *gregs) | |
8b39fe56 | 1398 | { |
e17a4113 UW |
1399 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1400 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1401 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1402 | gdb_byte *regs = (gdb_byte *) gregs; |
3567a8ea MK |
1403 | int i; |
1404 | ||
386c036b | 1405 | if (sparc32) |
8b39fe56 | 1406 | { |
386c036b MK |
1407 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1408 | { | |
b4fd25c9 | 1409 | int offset = gregmap->r_tstate_offset; |
386c036b | 1410 | ULONGEST tstate, psr; |
e1613aba | 1411 | gdb_byte buf[8]; |
386c036b | 1412 | |
e17a4113 | 1413 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 1414 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 1415 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
1416 | tstate |= (psr & PSR_ICC) << 12; |
1417 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
1418 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 1419 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
1420 | memcpy (regs + offset, buf, 8); |
1421 | } | |
8b39fe56 | 1422 | |
386c036b MK |
1423 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
1424 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 1425 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
1426 | |
1427 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1428 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 1429 | regs + gregmap->r_npc_offset + 4); |
386c036b MK |
1430 | |
1431 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 1432 | { |
b4fd25c9 | 1433 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 1434 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1435 | } |
1436 | } | |
1437 | else | |
1438 | { | |
386c036b MK |
1439 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1440 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 1441 | regs + gregmap->r_tstate_offset); |
386c036b MK |
1442 | |
1443 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
1444 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 1445 | regs + gregmap->r_pc_offset); |
3567a8ea | 1446 | |
386c036b MK |
1447 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
1448 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 1449 | regs + gregmap->r_npc_offset); |
3567a8ea | 1450 | |
386c036b | 1451 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 1452 | { |
e1613aba | 1453 | gdb_byte buf[8]; |
386c036b MK |
1454 | |
1455 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
b4fd25c9 AA |
1456 | memcpy (regs + gregmap->r_y_offset, |
1457 | buf + 8 - gregmap->r_y_size, gregmap->r_y_size); | |
386c036b MK |
1458 | } |
1459 | ||
1460 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
b4fd25c9 | 1461 | && gregmap->r_fprs_offset != -1) |
386c036b | 1462 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 1463 | regs + gregmap->r_fprs_offset); |
386c036b MK |
1464 | |
1465 | } | |
1466 | ||
1467 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1468 | { | |
b4fd25c9 | 1469 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1470 | |
1471 | if (sparc32) | |
1472 | offset += 4; | |
1473 | ||
1474 | /* %g0 is always zero. */ | |
1475 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
1476 | { | |
1477 | if (regnum == i || regnum == -1) | |
1478 | regcache_raw_collect (regcache, i, regs + offset); | |
1479 | offset += 8; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1484 | { | |
1485 | /* Not all of the register set variants include Locals and | |
1486 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 1487 | if (gregmap->r_l0_offset != -1) |
386c036b | 1488 | { |
b4fd25c9 | 1489 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1490 | |
1491 | if (sparc32) | |
1492 | offset += 4; | |
1493 | ||
1494 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1495 | { |
386c036b MK |
1496 | if (regnum == i || regnum == -1) |
1497 | regcache_raw_collect (regcache, i, regs + offset); | |
1498 | offset += 8; | |
3567a8ea MK |
1499 | } |
1500 | } | |
8b39fe56 MK |
1501 | } |
1502 | } | |
8b39fe56 | 1503 | |
386c036b | 1504 | void |
b4fd25c9 | 1505 | sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 1506 | struct regcache *regcache, |
386c036b MK |
1507 | int regnum, const void *fpregs) |
1508 | { | |
e6d4f032 | 1509 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 1510 | const gdb_byte *regs = (const gdb_byte *) fpregs; |
386c036b MK |
1511 | int i; |
1512 | ||
1513 | for (i = 0; i < 32; i++) | |
1514 | { | |
1515 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 1516 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 1517 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
1518 | } |
1519 | ||
1520 | if (sparc32) | |
1521 | { | |
1522 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1523 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 1524 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
1525 | } |
1526 | else | |
1527 | { | |
1528 | for (i = 0; i < 16; i++) | |
1529 | { | |
1530 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1531 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 1532 | (regs + fpregmap->r_f0_offset |
db75c717 | 1533 | + (32 * 4) + (i * 8))); |
386c036b MK |
1534 | } |
1535 | ||
1536 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1537 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 1538 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
1539 | } |
1540 | } | |
8b39fe56 MK |
1541 | |
1542 | void | |
b4fd25c9 | 1543 | sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 1544 | const struct regcache *regcache, |
386c036b | 1545 | int regnum, void *fpregs) |
8b39fe56 | 1546 | { |
e6d4f032 | 1547 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 1548 | gdb_byte *regs = (gdb_byte *) fpregs; |
386c036b MK |
1549 | int i; |
1550 | ||
1551 | for (i = 0; i < 32; i++) | |
1552 | { | |
1553 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 1554 | regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 1555 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
1556 | } |
1557 | ||
1558 | if (sparc32) | |
1559 | { | |
1560 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1561 | regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 1562 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
1563 | } |
1564 | else | |
1565 | { | |
1566 | for (i = 0; i < 16; i++) | |
1567 | { | |
1568 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1569 | regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 1570 | (regs + fpregmap->r_f0_offset |
db75c717 | 1571 | + (32 * 4) + (i * 8))); |
386c036b MK |
1572 | } |
1573 | ||
1574 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1575 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 1576 | regs + fpregmap->r_fsr_offset); |
386c036b | 1577 | } |
8b39fe56 | 1578 | } |
fd936806 | 1579 | |
b4fd25c9 | 1580 | const struct sparc_fpregmap sparc64_bsd_fpregmap = |
db75c717 DM |
1581 | { |
1582 | 0 * 8, /* %f0 */ | |
1583 | 32 * 8, /* %fsr */ | |
1584 | }; |