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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" | |
3f7b46f2 | 34 | #include "target-descriptions.h" |
8b39fe56 MK |
35 | #include "target.h" |
36 | #include "value.h" | |
37 | ||
8b39fe56 MK |
38 | #include "sparc64-tdep.h" |
39 | ||
b021a221 | 40 | /* This file implements the SPARC 64-bit ABI as defined by the |
8b39fe56 MK |
41 | section "Low-Level System Information" of the SPARC Compliance |
42 | Definition (SCD) 2.4.1, which is the 64-bit System V psABI for | |
43 | SPARC. */ | |
44 | ||
45 | /* Please use the sparc32_-prefix for 32-bit specific code, the | |
46 | sparc64_-prefix for 64-bit specific code and the sparc_-prefix for | |
47 | code can handle both. */ | |
8b39fe56 MK |
48 | \f |
49 | /* The functions on this page are intended to be used to classify | |
50 | function arguments. */ | |
51 | ||
8b39fe56 MK |
52 | /* Check whether TYPE is "Integral or Pointer". */ |
53 | ||
54 | static int | |
55 | sparc64_integral_or_pointer_p (const struct type *type) | |
56 | { | |
57 | switch (TYPE_CODE (type)) | |
58 | { | |
59 | case TYPE_CODE_INT: | |
60 | case TYPE_CODE_BOOL: | |
61 | case TYPE_CODE_CHAR: | |
62 | case TYPE_CODE_ENUM: | |
63 | case TYPE_CODE_RANGE: | |
64 | { | |
65 | int len = TYPE_LENGTH (type); | |
66 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); | |
67 | } | |
68 | return 1; | |
69 | case TYPE_CODE_PTR: | |
70 | case TYPE_CODE_REF: | |
aa006118 | 71 | case TYPE_CODE_RVALUE_REF: |
8b39fe56 MK |
72 | { |
73 | int len = TYPE_LENGTH (type); | |
74 | gdb_assert (len == 8); | |
75 | } | |
76 | return 1; | |
77 | default: | |
78 | break; | |
79 | } | |
80 | ||
81 | return 0; | |
82 | } | |
83 | ||
84 | /* Check whether TYPE is "Floating". */ | |
85 | ||
86 | static int | |
87 | sparc64_floating_p (const struct type *type) | |
88 | { | |
89 | switch (TYPE_CODE (type)) | |
90 | { | |
91 | case TYPE_CODE_FLT: | |
92 | { | |
93 | int len = TYPE_LENGTH (type); | |
94 | gdb_assert (len == 4 || len == 8 || len == 16); | |
95 | } | |
96 | return 1; | |
97 | default: | |
98 | break; | |
99 | } | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
fe10a582 DM |
104 | /* Check whether TYPE is "Complex Floating". */ |
105 | ||
106 | static int | |
107 | sparc64_complex_floating_p (const struct type *type) | |
108 | { | |
109 | switch (TYPE_CODE (type)) | |
110 | { | |
111 | case TYPE_CODE_COMPLEX: | |
112 | { | |
113 | int len = TYPE_LENGTH (type); | |
114 | gdb_assert (len == 8 || len == 16 || len == 32); | |
115 | } | |
116 | return 1; | |
117 | default: | |
118 | break; | |
119 | } | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
0497f5b0 JB |
124 | /* Check whether TYPE is "Structure or Union". |
125 | ||
126 | In terms of Ada subprogram calls, arrays are treated the same as | |
127 | struct and union types. So this function also returns non-zero | |
128 | for array types. */ | |
8b39fe56 MK |
129 | |
130 | static int | |
131 | sparc64_structure_or_union_p (const struct type *type) | |
132 | { | |
133 | switch (TYPE_CODE (type)) | |
134 | { | |
135 | case TYPE_CODE_STRUCT: | |
136 | case TYPE_CODE_UNION: | |
0497f5b0 | 137 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
138 | return 1; |
139 | default: | |
140 | break; | |
141 | } | |
142 | ||
143 | return 0; | |
144 | } | |
fd936806 MK |
145 | \f |
146 | ||
209bd28e | 147 | /* Construct types for ISA-specific registers. */ |
fd936806 | 148 | |
209bd28e UW |
149 | static struct type * |
150 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
151 | { | |
152 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
fd936806 | 153 | |
209bd28e UW |
154 | if (!tdep->sparc64_pstate_type) |
155 | { | |
156 | struct type *type; | |
157 | ||
e9bb382b | 158 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 8); |
209bd28e UW |
159 | append_flags_type_flag (type, 0, "AG"); |
160 | append_flags_type_flag (type, 1, "IE"); | |
161 | append_flags_type_flag (type, 2, "PRIV"); | |
162 | append_flags_type_flag (type, 3, "AM"); | |
163 | append_flags_type_flag (type, 4, "PEF"); | |
164 | append_flags_type_flag (type, 5, "RED"); | |
165 | append_flags_type_flag (type, 8, "TLE"); | |
166 | append_flags_type_flag (type, 9, "CLE"); | |
167 | append_flags_type_flag (type, 10, "PID0"); | |
168 | append_flags_type_flag (type, 11, "PID1"); | |
169 | ||
170 | tdep->sparc64_pstate_type = type; | |
171 | } | |
fd936806 | 172 | |
209bd28e UW |
173 | return tdep->sparc64_pstate_type; |
174 | } | |
fd936806 | 175 | |
209bd28e UW |
176 | static struct type * |
177 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
178 | { | |
179 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
180 | ||
181 | if (!tdep->sparc64_fsr_type) | |
182 | { | |
183 | struct type *type; | |
184 | ||
e9bb382b | 185 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 8); |
209bd28e UW |
186 | append_flags_type_flag (type, 0, "NXA"); |
187 | append_flags_type_flag (type, 1, "DZA"); | |
188 | append_flags_type_flag (type, 2, "UFA"); | |
189 | append_flags_type_flag (type, 3, "OFA"); | |
190 | append_flags_type_flag (type, 4, "NVA"); | |
191 | append_flags_type_flag (type, 5, "NXC"); | |
192 | append_flags_type_flag (type, 6, "DZC"); | |
193 | append_flags_type_flag (type, 7, "UFC"); | |
194 | append_flags_type_flag (type, 8, "OFC"); | |
195 | append_flags_type_flag (type, 9, "NVC"); | |
196 | append_flags_type_flag (type, 22, "NS"); | |
197 | append_flags_type_flag (type, 23, "NXM"); | |
198 | append_flags_type_flag (type, 24, "DZM"); | |
199 | append_flags_type_flag (type, 25, "UFM"); | |
200 | append_flags_type_flag (type, 26, "OFM"); | |
201 | append_flags_type_flag (type, 27, "NVM"); | |
202 | ||
203 | tdep->sparc64_fsr_type = type; | |
204 | } | |
205 | ||
206 | return tdep->sparc64_fsr_type; | |
207 | } | |
208 | ||
209 | static struct type * | |
210 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 211 | { |
209bd28e UW |
212 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
213 | ||
214 | if (!tdep->sparc64_fprs_type) | |
215 | { | |
216 | struct type *type; | |
217 | ||
e9bb382b | 218 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 8); |
209bd28e UW |
219 | append_flags_type_flag (type, 0, "DL"); |
220 | append_flags_type_flag (type, 1, "DU"); | |
221 | append_flags_type_flag (type, 2, "FEF"); | |
222 | ||
223 | tdep->sparc64_fprs_type = type; | |
224 | } | |
225 | ||
226 | return tdep->sparc64_fprs_type; | |
fd936806 | 227 | } |
8b39fe56 | 228 | |
209bd28e | 229 | |
8b39fe56 | 230 | /* Register information. */ |
7a36499a IR |
231 | #define SPARC64_FPU_REGISTERS \ |
232 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
233 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
234 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
235 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
236 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \ | |
237 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62" | |
238 | #define SPARC64_CP0_REGISTERS \ | |
239 | "pc", "npc", \ | |
240 | /* FIXME: Give "state" a name until we start using register groups. */ \ | |
241 | "state", \ | |
242 | "fsr", \ | |
243 | "fprs", \ | |
244 | "y" | |
8b39fe56 | 245 | |
3f7b46f2 IR |
246 | static const char *sparc64_fpu_register_names[] = { SPARC64_FPU_REGISTERS }; |
247 | static const char *sparc64_cp0_register_names[] = { SPARC64_CP0_REGISTERS }; | |
248 | ||
6707b003 | 249 | static const char *sparc64_register_names[] = |
8b39fe56 | 250 | { |
7a36499a IR |
251 | SPARC_CORE_REGISTERS, |
252 | SPARC64_FPU_REGISTERS, | |
253 | SPARC64_CP0_REGISTERS | |
8b39fe56 MK |
254 | }; |
255 | ||
256 | /* Total number of registers. */ | |
6707b003 | 257 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
258 | |
259 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
260 | registers as "psuedo" registers. */ | |
261 | ||
6707b003 | 262 | static const char *sparc64_pseudo_register_names[] = |
8b39fe56 | 263 | { |
6707b003 UW |
264 | "cwp", "pstate", "asi", "ccr", |
265 | ||
266 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
267 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
268 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
269 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
270 | ||
271 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
272 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
273 | }; |
274 | ||
275 | /* Total number of pseudo registers. */ | |
6707b003 | 276 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 | 277 | |
7a36499a IR |
278 | /* Return the name of pseudo register REGNUM. */ |
279 | ||
280 | static const char * | |
281 | sparc64_pseudo_register_name (struct gdbarch *gdbarch, int regnum) | |
282 | { | |
283 | regnum -= gdbarch_num_regs (gdbarch); | |
284 | ||
285 | if (regnum < SPARC64_NUM_PSEUDO_REGS) | |
286 | return sparc64_pseudo_register_names[regnum]; | |
287 | ||
288 | internal_error (__FILE__, __LINE__, | |
289 | _("sparc64_pseudo_register_name: bad register number %d"), | |
290 | regnum); | |
291 | } | |
292 | ||
8b39fe56 MK |
293 | /* Return the name of register REGNUM. */ |
294 | ||
295 | static const char * | |
d93859e2 | 296 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 | 297 | { |
3f7b46f2 IR |
298 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
299 | return tdesc_register_name (gdbarch, regnum); | |
300 | ||
7a36499a | 301 | if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) |
6707b003 | 302 | return sparc64_register_names[regnum]; |
8b39fe56 | 303 | |
7a36499a IR |
304 | return sparc64_pseudo_register_name (gdbarch, regnum); |
305 | } | |
306 | ||
307 | /* Return the GDB type object for the "standard" data type of data in | |
308 | pseudo register REGNUM. */ | |
309 | ||
310 | static struct type * | |
311 | sparc64_pseudo_register_type (struct gdbarch *gdbarch, int regnum) | |
312 | { | |
313 | regnum -= gdbarch_num_regs (gdbarch); | |
314 | ||
315 | if (regnum == SPARC64_CWP_REGNUM) | |
316 | return builtin_type (gdbarch)->builtin_int64; | |
317 | if (regnum == SPARC64_PSTATE_REGNUM) | |
318 | return sparc64_pstate_type (gdbarch); | |
319 | if (regnum == SPARC64_ASI_REGNUM) | |
320 | return builtin_type (gdbarch)->builtin_int64; | |
321 | if (regnum == SPARC64_CCR_REGNUM) | |
322 | return builtin_type (gdbarch)->builtin_int64; | |
323 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
324 | return builtin_type (gdbarch)->builtin_double; | |
325 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
326 | return builtin_type (gdbarch)->builtin_long_double; | |
8b39fe56 | 327 | |
7a36499a IR |
328 | internal_error (__FILE__, __LINE__, |
329 | _("sparc64_pseudo_register_type: bad register number %d"), | |
330 | regnum); | |
8b39fe56 MK |
331 | } |
332 | ||
333 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 334 | register REGNUM. */ |
8b39fe56 MK |
335 | |
336 | static struct type * | |
337 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
338 | { | |
3f7b46f2 IR |
339 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
340 | return tdesc_register_type (gdbarch, regnum); | |
341 | ||
6707b003 | 342 | /* Raw registers. */ |
6707b003 | 343 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) |
0dfff4cb | 344 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 345 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 346 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 347 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 348 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 349 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 350 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 351 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 352 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
353 | /* This raw register contains the contents of %cwp, %pstate, %asi |
354 | and %ccr as laid out in a %tstate register. */ | |
355 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 356 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 357 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 358 | return sparc64_fsr_type (gdbarch); |
6707b003 | 359 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 360 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
361 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
362 | reserved and always read as 0." */ | |
363 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 364 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
365 | |
366 | /* Pseudo registers. */ | |
7a36499a IR |
367 | if (regnum >= gdbarch_num_regs (gdbarch)) |
368 | return sparc64_pseudo_register_type (gdbarch, regnum); | |
6707b003 UW |
369 | |
370 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
371 | } |
372 | ||
05d1431c | 373 | static enum register_status |
8b39fe56 MK |
374 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
375 | struct regcache *regcache, | |
e1613aba | 376 | int regnum, gdb_byte *buf) |
8b39fe56 | 377 | { |
e17a4113 | 378 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
379 | enum register_status status; |
380 | ||
7a36499a | 381 | regnum -= gdbarch_num_regs (gdbarch); |
8b39fe56 MK |
382 | |
383 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
384 | { | |
385 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
05d1431c PA |
386 | status = regcache_raw_read (regcache, regnum, buf); |
387 | if (status == REG_VALID) | |
388 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
389 | return status; | |
8b39fe56 MK |
390 | } |
391 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
392 | { | |
393 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
05d1431c | 394 | return regcache_raw_read (regcache, regnum, buf); |
8b39fe56 MK |
395 | } |
396 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
397 | { | |
398 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c PA |
399 | |
400 | status = regcache_raw_read (regcache, regnum, buf); | |
401 | if (status == REG_VALID) | |
402 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
403 | if (status == REG_VALID) | |
404 | status = regcache_raw_read (regcache, regnum + 2, buf + 8); | |
405 | if (status == REG_VALID) | |
406 | status = regcache_raw_read (regcache, regnum + 3, buf + 12); | |
407 | ||
408 | return status; | |
8b39fe56 MK |
409 | } |
410 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
411 | { | |
412 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c PA |
413 | |
414 | status = regcache_raw_read (regcache, regnum, buf); | |
415 | if (status == REG_VALID) | |
416 | status = regcache_raw_read (regcache, regnum + 1, buf + 8); | |
417 | ||
418 | return status; | |
8b39fe56 MK |
419 | } |
420 | else if (regnum == SPARC64_CWP_REGNUM | |
421 | || regnum == SPARC64_PSTATE_REGNUM | |
422 | || regnum == SPARC64_ASI_REGNUM | |
423 | || regnum == SPARC64_CCR_REGNUM) | |
424 | { | |
425 | ULONGEST state; | |
426 | ||
05d1431c PA |
427 | status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); |
428 | if (status != REG_VALID) | |
429 | return status; | |
430 | ||
8b39fe56 MK |
431 | switch (regnum) |
432 | { | |
3567a8ea | 433 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
434 | state = (state >> 0) & ((1 << 5) - 1); |
435 | break; | |
3567a8ea | 436 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
437 | state = (state >> 8) & ((1 << 12) - 1); |
438 | break; | |
3567a8ea | 439 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
440 | state = (state >> 24) & ((1 << 8) - 1); |
441 | break; | |
3567a8ea | 442 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
443 | state = (state >> 32) & ((1 << 8) - 1); |
444 | break; | |
445 | } | |
e17a4113 | 446 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 447 | } |
05d1431c PA |
448 | |
449 | return REG_VALID; | |
8b39fe56 MK |
450 | } |
451 | ||
452 | static void | |
453 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
454 | struct regcache *regcache, | |
e1613aba | 455 | int regnum, const gdb_byte *buf) |
8b39fe56 | 456 | { |
e17a4113 | 457 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
7a36499a IR |
458 | |
459 | regnum -= gdbarch_num_regs (gdbarch); | |
8b39fe56 MK |
460 | |
461 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
462 | { | |
463 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
464 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 465 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
466 | } |
467 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
468 | { | |
469 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
470 | regcache_raw_write (regcache, regnum, buf); | |
471 | } | |
472 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
473 | { | |
474 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
475 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
476 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
477 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
478 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
479 | } |
480 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
481 | { | |
482 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
483 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 484 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 485 | } |
3567a8ea MK |
486 | else if (regnum == SPARC64_CWP_REGNUM |
487 | || regnum == SPARC64_PSTATE_REGNUM | |
488 | || regnum == SPARC64_ASI_REGNUM | |
489 | || regnum == SPARC64_CCR_REGNUM) | |
490 | { | |
491 | ULONGEST state, bits; | |
492 | ||
493 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 494 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
495 | switch (regnum) |
496 | { | |
497 | case SPARC64_CWP_REGNUM: | |
498 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
499 | break; | |
500 | case SPARC64_PSTATE_REGNUM: | |
501 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
502 | break; | |
503 | case SPARC64_ASI_REGNUM: | |
504 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
505 | break; | |
506 | case SPARC64_CCR_REGNUM: | |
507 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
508 | break; | |
509 | } | |
510 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
511 | } | |
8b39fe56 | 512 | } |
8b39fe56 MK |
513 | \f |
514 | ||
8b39fe56 MK |
515 | /* Return PC of first real instruction of the function starting at |
516 | START_PC. */ | |
517 | ||
518 | static CORE_ADDR | |
6093d2eb | 519 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
520 | { |
521 | struct symtab_and_line sal; | |
522 | CORE_ADDR func_start, func_end; | |
386c036b | 523 | struct sparc_frame_cache cache; |
8b39fe56 MK |
524 | |
525 | /* This is the preferred method, find the end of the prologue by | |
526 | using the debugging information. */ | |
527 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
528 | { | |
529 | sal = find_pc_line (func_start, 0); | |
530 | ||
531 | if (sal.end < func_end | |
532 | && start_pc <= sal.end) | |
533 | return sal.end; | |
534 | } | |
535 | ||
be8626e0 MD |
536 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
537 | &cache); | |
8b39fe56 MK |
538 | } |
539 | ||
540 | /* Normal frames. */ | |
541 | ||
386c036b | 542 | static struct sparc_frame_cache * |
236369e7 | 543 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 544 | { |
236369e7 | 545 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
546 | } |
547 | ||
548 | static void | |
236369e7 | 549 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
550 | struct frame_id *this_id) |
551 | { | |
386c036b | 552 | struct sparc_frame_cache *cache = |
236369e7 | 553 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
554 | |
555 | /* This marks the outermost frame. */ | |
556 | if (cache->base == 0) | |
557 | return; | |
558 | ||
559 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
560 | } | |
561 | ||
236369e7 JB |
562 | static struct value * |
563 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
564 | int regnum) | |
8b39fe56 | 565 | { |
e17a4113 | 566 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 567 | struct sparc_frame_cache *cache = |
236369e7 | 568 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
569 | |
570 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
571 | { | |
236369e7 | 572 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 573 | |
369c397b JB |
574 | regnum = |
575 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
576 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
577 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
578 | } |
579 | ||
f700a364 MK |
580 | /* Handle StackGhost. */ |
581 | { | |
e17a4113 | 582 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
583 | |
584 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
585 | { | |
236369e7 JB |
586 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
587 | ULONGEST i7; | |
588 | ||
589 | /* Read the value in from memory. */ | |
590 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
591 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
592 | } |
593 | } | |
594 | ||
369c397b | 595 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 596 | in the register save area. */ |
369c397b JB |
597 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
598 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 599 | { |
236369e7 | 600 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 601 | |
236369e7 | 602 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
603 | } |
604 | ||
369c397b JB |
605 | /* The previous frame's `out' registers may be accessible as the current |
606 | frame's `in' registers. */ | |
607 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
608 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
609 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
610 | ||
236369e7 | 611 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
612 | } |
613 | ||
614 | static const struct frame_unwind sparc64_frame_unwind = | |
615 | { | |
616 | NORMAL_FRAME, | |
8fbca658 | 617 | default_frame_unwind_stop_reason, |
8b39fe56 | 618 | sparc64_frame_this_id, |
236369e7 JB |
619 | sparc64_frame_prev_register, |
620 | NULL, | |
621 | default_frame_sniffer | |
8b39fe56 | 622 | }; |
8b39fe56 MK |
623 | \f |
624 | ||
625 | static CORE_ADDR | |
236369e7 | 626 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 627 | { |
386c036b | 628 | struct sparc_frame_cache *cache = |
236369e7 | 629 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 630 | |
5b2d44a0 | 631 | return cache->base; |
8b39fe56 MK |
632 | } |
633 | ||
634 | static const struct frame_base sparc64_frame_base = | |
635 | { | |
636 | &sparc64_frame_unwind, | |
637 | sparc64_frame_base_address, | |
638 | sparc64_frame_base_address, | |
639 | sparc64_frame_base_address | |
640 | }; | |
8b39fe56 MK |
641 | \f |
642 | /* Check whether TYPE must be 16-byte aligned. */ | |
643 | ||
644 | static int | |
645 | sparc64_16_byte_align_p (struct type *type) | |
646 | { | |
647 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) | |
648 | return 1; | |
649 | ||
650 | if (sparc64_structure_or_union_p (type)) | |
651 | { | |
652 | int i; | |
653 | ||
654 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
655 | { |
656 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
657 | ||
658 | if (sparc64_16_byte_align_p (subtype)) | |
659 | return 1; | |
660 | } | |
8b39fe56 MK |
661 | } |
662 | ||
663 | return 0; | |
664 | } | |
665 | ||
666 | /* Store floating fields of element ELEMENT of an "parameter array" | |
667 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
668 | apropriate registers of REGCACHE. This function can be called | |
669 | recursively and therefore handles floating types in addition to | |
670 | structures. */ | |
671 | ||
672 | static void | |
673 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 674 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 | 675 | { |
7a36499a | 676 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
fe10a582 DM |
677 | int len = TYPE_LENGTH (type); |
678 | ||
8b39fe56 MK |
679 | gdb_assert (element < 16); |
680 | ||
fe10a582 DM |
681 | if (sparc64_floating_p (type) |
682 | || (sparc64_complex_floating_p (type) && len <= 16)) | |
8b39fe56 | 683 | { |
8b39fe56 MK |
684 | int regnum; |
685 | ||
686 | if (len == 16) | |
687 | { | |
688 | gdb_assert (bitpos == 0); | |
689 | gdb_assert ((element % 2) == 0); | |
690 | ||
7a36499a | 691 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM + element / 2; |
8b39fe56 MK |
692 | regcache_cooked_write (regcache, regnum, valbuf); |
693 | } | |
694 | else if (len == 8) | |
695 | { | |
696 | gdb_assert (bitpos == 0 || bitpos == 64); | |
697 | ||
7a36499a IR |
698 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
699 | + element + bitpos / 64; | |
8b39fe56 MK |
700 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); |
701 | } | |
702 | else | |
703 | { | |
704 | gdb_assert (len == 4); | |
705 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
706 | ||
707 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
708 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
709 | } | |
710 | } | |
711 | else if (sparc64_structure_or_union_p (type)) | |
712 | { | |
713 | int i; | |
714 | ||
715 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
716 | { |
717 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
718 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
719 | ||
720 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
721 | element, subpos); | |
722 | } | |
200cc553 MK |
723 | |
724 | /* GCC has an interesting bug. If TYPE is a structure that has | |
725 | a single `float' member, GCC doesn't treat it as a structure | |
726 | at all, but rather as an ordinary `float' argument. This | |
727 | argument will be stored in %f1, as required by the psABI. | |
728 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
729 | be stored in %f0. This bug is present in GCC 3.3.2, but |
730 | probably in older releases to. To appease GCC, if a | |
731 | structure has only a single `float' member, we store its | |
732 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
733 | if (TYPE_NFIELDS (type) == 1) |
734 | { | |
735 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
736 | ||
737 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
738 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
739 | } | |
8b39fe56 MK |
740 | } |
741 | } | |
742 | ||
743 | /* Fetch floating fields from a variable of type TYPE from the | |
744 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
745 | in VALBUF. This function can be called recursively and therefore | |
746 | handles floating types in addition to structures. */ | |
747 | ||
748 | static void | |
749 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 750 | gdb_byte *valbuf, int bitpos) |
8b39fe56 | 751 | { |
7a36499a IR |
752 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
753 | ||
8b39fe56 MK |
754 | if (sparc64_floating_p (type)) |
755 | { | |
756 | int len = TYPE_LENGTH (type); | |
757 | int regnum; | |
758 | ||
759 | if (len == 16) | |
760 | { | |
761 | gdb_assert (bitpos == 0 || bitpos == 128); | |
762 | ||
7a36499a IR |
763 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
764 | + bitpos / 128; | |
8b39fe56 MK |
765 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
766 | } | |
767 | else if (len == 8) | |
768 | { | |
769 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
770 | ||
7a36499a | 771 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + bitpos / 64; |
8b39fe56 MK |
772 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
773 | } | |
774 | else | |
775 | { | |
776 | gdb_assert (len == 4); | |
777 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
778 | ||
779 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
780 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
781 | } | |
782 | } | |
783 | else if (sparc64_structure_or_union_p (type)) | |
784 | { | |
785 | int i; | |
786 | ||
787 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
788 | { |
789 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
790 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
791 | ||
792 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
793 | } | |
8b39fe56 MK |
794 | } |
795 | } | |
796 | ||
797 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
798 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
799 | ||
800 | static CORE_ADDR | |
801 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
802 | struct value **args, CORE_ADDR sp, | |
803 | int struct_return, CORE_ADDR struct_addr) | |
804 | { | |
df4df182 | 805 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
806 | /* Number of extended words in the "parameter array". */ |
807 | int num_elements = 0; | |
808 | int element = 0; | |
809 | int i; | |
810 | ||
811 | /* Take BIAS into account. */ | |
812 | sp += BIAS; | |
813 | ||
814 | /* First we calculate the number of extended words in the "parameter | |
815 | array". While doing so we also convert some of the arguments. */ | |
816 | ||
817 | if (struct_return) | |
818 | num_elements++; | |
819 | ||
820 | for (i = 0; i < nargs; i++) | |
821 | { | |
4991999e | 822 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
823 | int len = TYPE_LENGTH (type); |
824 | ||
fb57d452 MK |
825 | if (sparc64_structure_or_union_p (type) |
826 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 MK |
827 | { |
828 | /* Structure or Union arguments. */ | |
829 | if (len <= 16) | |
830 | { | |
831 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
832 | num_elements++; | |
833 | num_elements += ((len + 7) / 8); | |
834 | } | |
835 | else | |
836 | { | |
837 | /* The psABI says that "Structures or unions larger than | |
838 | sixteen bytes are copied by the caller and passed | |
839 | indirectly; the caller will pass the address of a | |
840 | correctly aligned structure value. This sixty-four | |
841 | bit address will occupy one word in the parameter | |
842 | array, and may be promoted to an %o register like any | |
843 | other pointer value." Allocate memory for these | |
844 | values on the stack. */ | |
845 | sp -= len; | |
846 | ||
847 | /* Use 16-byte alignment for these values. That's | |
848 | always correct, and wasting a few bytes shouldn't be | |
849 | a problem. */ | |
850 | sp &= ~0xf; | |
851 | ||
0fd88904 | 852 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
853 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
854 | num_elements++; | |
855 | } | |
856 | } | |
cdc7b32f | 857 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
858 | { |
859 | /* Floating arguments. */ | |
8b39fe56 MK |
860 | if (len == 16) |
861 | { | |
862 | /* The psABI says that "Each quad-precision parameter | |
863 | value will be assigned to two extended words in the | |
864 | parameter array. */ | |
865 | num_elements += 2; | |
866 | ||
867 | /* The psABI says that "Long doubles must be | |
868 | quad-aligned, and thus a hole might be introduced | |
869 | into the parameter array to force alignment." Skip | |
870 | an element if necessary. */ | |
49caec94 | 871 | if ((num_elements % 2) && sparc64_16_byte_align_p (type)) |
8b39fe56 MK |
872 | num_elements++; |
873 | } | |
874 | else | |
875 | num_elements++; | |
876 | } | |
877 | else | |
878 | { | |
879 | /* Integral and pointer arguments. */ | |
880 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
881 | ||
882 | /* The psABI says that "Each argument value of integral type | |
883 | smaller than an extended word will be widened by the | |
884 | caller to an extended word according to the signed-ness | |
885 | of the argument type." */ | |
886 | if (len < 8) | |
df4df182 UW |
887 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
888 | args[i]); | |
8b39fe56 MK |
889 | num_elements++; |
890 | } | |
891 | } | |
892 | ||
893 | /* Allocate the "parameter array". */ | |
894 | sp -= num_elements * 8; | |
895 | ||
896 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
897 | sp &= ~0xf; | |
898 | ||
899 | /* Now we store the arguments in to the "paramater array". Some | |
900 | Integer or Pointer arguments and Structure or Union arguments | |
901 | will be passed in %o registers. Some Floating arguments and | |
902 | floating members of structures are passed in floating-point | |
903 | registers. However, for functions with variable arguments, | |
904 | floating arguments are stored in an %0 register, and for | |
905 | functions without a prototype floating arguments are stored in | |
906 | both a floating-point and an %o registers, or a floating-point | |
907 | register and memory. To simplify the logic here we always pass | |
908 | arguments in memory, an %o register, and a floating-point | |
909 | register if appropriate. This should be no problem since the | |
910 | contents of any unused memory or registers in the "parameter | |
911 | array" are undefined. */ | |
912 | ||
913 | if (struct_return) | |
914 | { | |
915 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
916 | element++; | |
917 | } | |
918 | ||
919 | for (i = 0; i < nargs; i++) | |
920 | { | |
e1613aba | 921 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 922 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
923 | int len = TYPE_LENGTH (type); |
924 | int regnum = -1; | |
e1613aba | 925 | gdb_byte buf[16]; |
8b39fe56 | 926 | |
fb57d452 MK |
927 | if (sparc64_structure_or_union_p (type) |
928 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 | 929 | { |
49caec94 | 930 | /* Structure, Union or long double Complex arguments. */ |
8b39fe56 MK |
931 | gdb_assert (len <= 16); |
932 | memset (buf, 0, sizeof (buf)); | |
cfcb22a5 SM |
933 | memcpy (buf, valbuf, len); |
934 | valbuf = buf; | |
8b39fe56 MK |
935 | |
936 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
937 | element++; | |
938 | ||
939 | if (element < 6) | |
940 | { | |
941 | regnum = SPARC_O0_REGNUM + element; | |
942 | if (len > 8 && element < 5) | |
943 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
944 | } | |
945 | ||
946 | if (element < 16) | |
947 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
948 | } | |
49caec94 JM |
949 | else if (sparc64_complex_floating_p (type)) |
950 | { | |
951 | /* Float Complex or double Complex arguments. */ | |
952 | if (element < 16) | |
953 | { | |
7a36499a | 954 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + element; |
49caec94 JM |
955 | |
956 | if (len == 16) | |
957 | { | |
7a36499a | 958 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D30_REGNUM) |
49caec94 | 959 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
7a36499a | 960 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D10_REGNUM) |
49caec94 JM |
961 | regcache_cooked_write (regcache, |
962 | SPARC_O0_REGNUM + element + 1, | |
963 | valbuf + 8); | |
964 | } | |
965 | } | |
966 | } | |
967 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
968 | { |
969 | /* Floating arguments. */ | |
970 | if (len == 16) | |
971 | { | |
972 | if (element % 2) | |
973 | element++; | |
974 | if (element < 16) | |
7a36499a IR |
975 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
976 | + element / 2; | |
8b39fe56 MK |
977 | } |
978 | else if (len == 8) | |
979 | { | |
980 | if (element < 16) | |
7a36499a IR |
981 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
982 | + element; | |
8b39fe56 | 983 | } |
fe10a582 | 984 | else if (len == 4) |
8b39fe56 MK |
985 | { |
986 | /* The psABI says "Each single-precision parameter value | |
987 | will be assigned to one extended word in the | |
988 | parameter array, and right-justified within that | |
cdc7b32f | 989 | word; the left half (even float register) is |
8b39fe56 MK |
990 | undefined." Even though the psABI says that "the |
991 | left half is undefined", set it to zero here. */ | |
992 | memset (buf, 0, 4); | |
8ada74e3 MK |
993 | memcpy (buf + 4, valbuf, 4); |
994 | valbuf = buf; | |
8b39fe56 MK |
995 | len = 8; |
996 | if (element < 16) | |
7a36499a IR |
997 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
998 | + element; | |
8b39fe56 MK |
999 | } |
1000 | } | |
1001 | else | |
1002 | { | |
1003 | /* Integral and pointer arguments. */ | |
1004 | gdb_assert (len == 8); | |
1005 | if (element < 6) | |
1006 | regnum = SPARC_O0_REGNUM + element; | |
1007 | } | |
1008 | ||
1009 | if (regnum != -1) | |
1010 | { | |
1011 | regcache_cooked_write (regcache, regnum, valbuf); | |
1012 | ||
1013 | /* If we're storing the value in a floating-point register, | |
1014 | also store it in the corresponding %0 register(s). */ | |
7a36499a IR |
1015 | if (regnum >= gdbarch_num_regs (gdbarch)) |
1016 | { | |
1017 | regnum -= gdbarch_num_regs (gdbarch); | |
1018 | ||
1019 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
1020 | { | |
1021 | gdb_assert (element < 6); | |
1022 | regnum = SPARC_O0_REGNUM + element; | |
1023 | regcache_cooked_write (regcache, regnum, valbuf); | |
1024 | } | |
1025 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
1026 | { | |
1027 | gdb_assert (element < 5); | |
1028 | regnum = SPARC_O0_REGNUM + element; | |
1029 | regcache_cooked_write (regcache, regnum, valbuf); | |
1030 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
1031 | } | |
1032 | } | |
8b39fe56 MK |
1033 | } |
1034 | ||
c4f2d4d7 | 1035 | /* Always store the argument in memory. */ |
8b39fe56 MK |
1036 | write_memory (sp + element * 8, valbuf, len); |
1037 | element += ((len + 7) / 8); | |
1038 | } | |
1039 | ||
1040 | gdb_assert (element == num_elements); | |
1041 | ||
1042 | /* Take BIAS into account. */ | |
1043 | sp -= BIAS; | |
1044 | return sp; | |
1045 | } | |
1046 | ||
49a45ecf JB |
1047 | static CORE_ADDR |
1048 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
1049 | { | |
1050 | /* The ABI requires 16-byte alignment. */ | |
1051 | return address & ~0xf; | |
1052 | } | |
1053 | ||
8b39fe56 | 1054 | static CORE_ADDR |
7d9b040b | 1055 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
1056 | struct regcache *regcache, CORE_ADDR bp_addr, |
1057 | int nargs, struct value **args, CORE_ADDR sp, | |
1058 | int struct_return, CORE_ADDR struct_addr) | |
1059 | { | |
1060 | /* Set return address. */ | |
1061 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
1062 | ||
1063 | /* Set up function arguments. */ | |
1064 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
1065 | struct_return, struct_addr); | |
1066 | ||
1067 | /* Allocate the register save area. */ | |
1068 | sp -= 16 * 8; | |
1069 | ||
1070 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 1071 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
1072 | |
1073 | /* Finally, update the stack pointer. */ | |
1074 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
1075 | ||
5b2d44a0 | 1076 | return sp + BIAS; |
8b39fe56 MK |
1077 | } |
1078 | \f | |
1079 | ||
1080 | /* Extract from an array REGBUF containing the (raw) register state, a | |
1081 | function return value of TYPE, and copy that into VALBUF. */ | |
1082 | ||
1083 | static void | |
1084 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1085 | gdb_byte *valbuf) |
8b39fe56 MK |
1086 | { |
1087 | int len = TYPE_LENGTH (type); | |
e1613aba | 1088 | gdb_byte buf[32]; |
8b39fe56 MK |
1089 | int i; |
1090 | ||
1091 | if (sparc64_structure_or_union_p (type)) | |
1092 | { | |
1093 | /* Structure or Union return values. */ | |
1094 | gdb_assert (len <= 32); | |
1095 | ||
1096 | for (i = 0; i < ((len + 7) / 8); i++) | |
1097 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1098 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
1099 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
1100 | memcpy (valbuf, buf, len); | |
1101 | } | |
cdc7b32f | 1102 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1103 | { |
1104 | /* Floating return values. */ | |
1105 | for (i = 0; i < len / 4; i++) | |
1106 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1107 | memcpy (valbuf, buf, len); | |
1108 | } | |
4bd87714 JB |
1109 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1110 | { | |
1111 | /* Small arrays are returned the same way as small structures. */ | |
1112 | gdb_assert (len <= 32); | |
1113 | ||
1114 | for (i = 0; i < ((len + 7) / 8); i++) | |
1115 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1116 | memcpy (valbuf, buf, len); | |
1117 | } | |
8b39fe56 MK |
1118 | else |
1119 | { | |
1120 | /* Integral and pointer return values. */ | |
1121 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1122 | ||
1123 | /* Just stripping off any unused bytes should preserve the | |
1124 | signed-ness just fine. */ | |
1125 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1126 | memcpy (valbuf, buf + 8 - len, len); | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | /* Write into the appropriate registers a function return value stored | |
1131 | in VALBUF of type TYPE. */ | |
1132 | ||
1133 | static void | |
1134 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1135 | const gdb_byte *valbuf) |
8b39fe56 MK |
1136 | { |
1137 | int len = TYPE_LENGTH (type); | |
e1613aba | 1138 | gdb_byte buf[16]; |
8b39fe56 MK |
1139 | int i; |
1140 | ||
1141 | if (sparc64_structure_or_union_p (type)) | |
1142 | { | |
1143 | /* Structure or Union return values. */ | |
1144 | gdb_assert (len <= 32); | |
1145 | ||
1146 | /* Simplify matters by storing the complete value (including | |
1147 | floating members) into %o0 and %o1. Floating members are | |
1148 | also store in the appropriate floating-point registers. */ | |
1149 | memset (buf, 0, sizeof (buf)); | |
1150 | memcpy (buf, valbuf, len); | |
1151 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1152 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1153 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1154 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1155 | } | |
fe10a582 | 1156 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1157 | { |
1158 | /* Floating return values. */ | |
1159 | memcpy (buf, valbuf, len); | |
1160 | for (i = 0; i < len / 4; i++) | |
1161 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1162 | } | |
4bd87714 JB |
1163 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1164 | { | |
1165 | /* Small arrays are returned the same way as small structures. */ | |
1166 | gdb_assert (len <= 32); | |
1167 | ||
1168 | memset (buf, 0, sizeof (buf)); | |
1169 | memcpy (buf, valbuf, len); | |
1170 | for (i = 0; i < ((len + 7) / 8); i++) | |
1171 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1172 | } | |
8b39fe56 MK |
1173 | else |
1174 | { | |
1175 | /* Integral and pointer return values. */ | |
1176 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1177 | ||
1178 | /* ??? Do we need to do any sign-extension here? */ | |
1179 | memset (buf, 0, 8); | |
1180 | memcpy (buf + 8 - len, valbuf, len); | |
1181 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1182 | } | |
1183 | } | |
1184 | ||
60af1db2 | 1185 | static enum return_value_convention |
6a3a010b | 1186 | sparc64_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
1187 | struct type *type, struct regcache *regcache, |
1188 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1189 | { |
60af1db2 MK |
1190 | if (TYPE_LENGTH (type) > 32) |
1191 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1192 | ||
1193 | if (readbuf) | |
1194 | sparc64_extract_return_value (type, regcache, readbuf); | |
1195 | if (writebuf) | |
1196 | sparc64_store_return_value (type, regcache, writebuf); | |
1197 | ||
1198 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1199 | } |
8b39fe56 | 1200 | \f |
8b39fe56 | 1201 | |
02a71ae8 MK |
1202 | static void |
1203 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1204 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1205 | struct frame_info *this_frame) |
02a71ae8 MK |
1206 | { |
1207 | switch (regnum) | |
1208 | { | |
1209 | case SPARC_G0_REGNUM: | |
1210 | /* Since %g0 is always zero, there is no point in saving it, and | |
1211 | people will be inclined omit it from the CFI. Make sure we | |
1212 | don't warn about that. */ | |
1213 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1214 | break; | |
1215 | case SPARC_SP_REGNUM: | |
1216 | reg->how = DWARF2_FRAME_REG_CFA; | |
1217 | break; | |
1218 | case SPARC64_PC_REGNUM: | |
1219 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1220 | reg->loc.offset = 8; | |
1221 | break; | |
1222 | case SPARC64_NPC_REGNUM: | |
1223 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1224 | reg->loc.offset = 12; | |
1225 | break; | |
1226 | } | |
1227 | } | |
1228 | ||
8b39fe56 | 1229 | void |
386c036b | 1230 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1231 | { |
386c036b | 1232 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1233 | |
386c036b MK |
1234 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1235 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
3f7b46f2 IR |
1236 | tdep->fpu_register_names = sparc64_fpu_register_names; |
1237 | tdep->fpu_registers_num = ARRAY_SIZE (sparc64_fpu_register_names); | |
1238 | tdep->cp0_register_names = sparc64_cp0_register_names; | |
1239 | tdep->cp0_registers_num = ARRAY_SIZE (sparc64_cp0_register_names); | |
8b39fe56 | 1240 | |
386c036b | 1241 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1242 | set_gdbarch_long_bit (gdbarch, 64); |
1243 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1244 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 MK |
1245 | |
1246 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); | |
1247 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1248 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1249 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
3f7b46f2 IR |
1250 | set_tdesc_pseudo_register_name (gdbarch, sparc64_pseudo_register_name); |
1251 | set_tdesc_pseudo_register_type (gdbarch, sparc64_pseudo_register_type); | |
8b39fe56 MK |
1252 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); |
1253 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1254 | ||
1255 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1256 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1257 | |
1258 | /* Call dummy code. */ | |
49a45ecf | 1259 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1260 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1261 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1262 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1263 | ||
60af1db2 | 1264 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1265 | set_gdbarch_stabs_argument_has_addr |
1266 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1267 | |
1268 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
c9cf6e20 | 1269 | set_gdbarch_stack_frame_destroyed_p (gdbarch, sparc_stack_frame_destroyed_p); |
8b39fe56 | 1270 | |
02a71ae8 MK |
1271 | /* Hook in the DWARF CFI frame unwinder. */ |
1272 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1273 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1274 | StackGhost issues have been resolved. */ | |
1275 | ||
236369e7 | 1276 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1277 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
386c036b MK |
1278 | } |
1279 | \f | |
8b39fe56 | 1280 | |
386c036b | 1281 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1282 | |
386c036b MK |
1283 | #define TSTATE_CWP 0x000000000000001fULL |
1284 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1285 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1286 | |
386c036b MK |
1287 | #define PSR_S 0x00000080 |
1288 | #define PSR_ICC 0x00f00000 | |
1289 | #define PSR_VERS 0x0f000000 | |
1290 | #define PSR_IMPL 0xf0000000 | |
1291 | #define PSR_V8PLUS 0xff000000 | |
1292 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1293 | |
3567a8ea | 1294 | void |
b4fd25c9 | 1295 | sparc64_supply_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1296 | struct regcache *regcache, |
1297 | int regnum, const void *gregs) | |
8b39fe56 | 1298 | { |
e17a4113 UW |
1299 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1300 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1301 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1302 | const gdb_byte *regs = (const gdb_byte *) gregs; |
22e74ef9 | 1303 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1304 | int i; |
1305 | ||
386c036b | 1306 | if (sparc32) |
8b39fe56 | 1307 | { |
386c036b MK |
1308 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1309 | { | |
b4fd25c9 | 1310 | int offset = gregmap->r_tstate_offset; |
386c036b | 1311 | ULONGEST tstate, psr; |
e1613aba | 1312 | gdb_byte buf[4]; |
386c036b | 1313 | |
e17a4113 | 1314 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1315 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1316 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1317 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1318 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1319 | } | |
1320 | ||
1321 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1322 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 1323 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
1324 | |
1325 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1326 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 1327 | regs + gregmap->r_npc_offset + 4); |
8b39fe56 | 1328 | |
386c036b | 1329 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1330 | { |
b4fd25c9 | 1331 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 1332 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1333 | } |
1334 | } | |
1335 | else | |
1336 | { | |
386c036b MK |
1337 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1338 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 1339 | regs + gregmap->r_tstate_offset); |
8b39fe56 | 1340 | |
386c036b MK |
1341 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1342 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 1343 | regs + gregmap->r_pc_offset); |
386c036b MK |
1344 | |
1345 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1346 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 1347 | regs + gregmap->r_npc_offset); |
386c036b MK |
1348 | |
1349 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1350 | { |
e1613aba | 1351 | gdb_byte buf[8]; |
386c036b MK |
1352 | |
1353 | memset (buf, 0, 8); | |
b4fd25c9 AA |
1354 | memcpy (buf + 8 - gregmap->r_y_size, |
1355 | regs + gregmap->r_y_offset, gregmap->r_y_size); | |
386c036b | 1356 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); |
3567a8ea | 1357 | } |
8b39fe56 | 1358 | |
386c036b | 1359 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
b4fd25c9 | 1360 | && gregmap->r_fprs_offset != -1) |
386c036b | 1361 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 1362 | regs + gregmap->r_fprs_offset); |
386c036b MK |
1363 | } |
1364 | ||
1365 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
22e74ef9 | 1366 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero); |
386c036b MK |
1367 | |
1368 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1369 | { | |
b4fd25c9 | 1370 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1371 | |
1372 | if (sparc32) | |
1373 | offset += 4; | |
1374 | ||
1375 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1376 | { |
3567a8ea | 1377 | if (regnum == i || regnum == -1) |
386c036b MK |
1378 | regcache_raw_supply (regcache, i, regs + offset); |
1379 | offset += 8; | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1384 | { | |
1385 | /* Not all of the register set variants include Locals and | |
1386 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 1387 | if (gregmap->r_l0_offset == -1) |
386c036b MK |
1388 | { |
1389 | ULONGEST sp; | |
1390 | ||
1391 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1392 | sparc_supply_rwindow (regcache, sp, regnum); | |
1393 | } | |
1394 | else | |
1395 | { | |
b4fd25c9 | 1396 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1397 | |
1398 | if (sparc32) | |
1399 | offset += 4; | |
1400 | ||
1401 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1402 | { |
386c036b MK |
1403 | if (regnum == i || regnum == -1) |
1404 | regcache_raw_supply (regcache, i, regs + offset); | |
1405 | offset += 8; | |
3567a8ea | 1406 | } |
8b39fe56 MK |
1407 | } |
1408 | } | |
1409 | } | |
1410 | ||
1411 | void | |
b4fd25c9 | 1412 | sparc64_collect_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1413 | const struct regcache *regcache, |
1414 | int regnum, void *gregs) | |
8b39fe56 | 1415 | { |
e17a4113 UW |
1416 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1417 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1418 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1419 | gdb_byte *regs = (gdb_byte *) gregs; |
3567a8ea MK |
1420 | int i; |
1421 | ||
386c036b | 1422 | if (sparc32) |
8b39fe56 | 1423 | { |
386c036b MK |
1424 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1425 | { | |
b4fd25c9 | 1426 | int offset = gregmap->r_tstate_offset; |
386c036b | 1427 | ULONGEST tstate, psr; |
e1613aba | 1428 | gdb_byte buf[8]; |
386c036b | 1429 | |
e17a4113 | 1430 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 1431 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 1432 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
1433 | tstate |= (psr & PSR_ICC) << 12; |
1434 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
1435 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 1436 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
1437 | memcpy (regs + offset, buf, 8); |
1438 | } | |
8b39fe56 | 1439 | |
386c036b MK |
1440 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
1441 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 1442 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
1443 | |
1444 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1445 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 1446 | regs + gregmap->r_npc_offset + 4); |
386c036b MK |
1447 | |
1448 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 1449 | { |
b4fd25c9 | 1450 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 1451 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1452 | } |
1453 | } | |
1454 | else | |
1455 | { | |
386c036b MK |
1456 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1457 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 1458 | regs + gregmap->r_tstate_offset); |
386c036b MK |
1459 | |
1460 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
1461 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 1462 | regs + gregmap->r_pc_offset); |
3567a8ea | 1463 | |
386c036b MK |
1464 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
1465 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 1466 | regs + gregmap->r_npc_offset); |
3567a8ea | 1467 | |
386c036b | 1468 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 1469 | { |
e1613aba | 1470 | gdb_byte buf[8]; |
386c036b MK |
1471 | |
1472 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
b4fd25c9 AA |
1473 | memcpy (regs + gregmap->r_y_offset, |
1474 | buf + 8 - gregmap->r_y_size, gregmap->r_y_size); | |
386c036b MK |
1475 | } |
1476 | ||
1477 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
b4fd25c9 | 1478 | && gregmap->r_fprs_offset != -1) |
386c036b | 1479 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 1480 | regs + gregmap->r_fprs_offset); |
386c036b MK |
1481 | |
1482 | } | |
1483 | ||
1484 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1485 | { | |
b4fd25c9 | 1486 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1487 | |
1488 | if (sparc32) | |
1489 | offset += 4; | |
1490 | ||
1491 | /* %g0 is always zero. */ | |
1492 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
1493 | { | |
1494 | if (regnum == i || regnum == -1) | |
1495 | regcache_raw_collect (regcache, i, regs + offset); | |
1496 | offset += 8; | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1501 | { | |
1502 | /* Not all of the register set variants include Locals and | |
1503 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 1504 | if (gregmap->r_l0_offset != -1) |
386c036b | 1505 | { |
b4fd25c9 | 1506 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1507 | |
1508 | if (sparc32) | |
1509 | offset += 4; | |
1510 | ||
1511 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1512 | { |
386c036b MK |
1513 | if (regnum == i || regnum == -1) |
1514 | regcache_raw_collect (regcache, i, regs + offset); | |
1515 | offset += 8; | |
3567a8ea MK |
1516 | } |
1517 | } | |
8b39fe56 MK |
1518 | } |
1519 | } | |
8b39fe56 | 1520 | |
386c036b | 1521 | void |
b4fd25c9 | 1522 | sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 1523 | struct regcache *regcache, |
386c036b MK |
1524 | int regnum, const void *fpregs) |
1525 | { | |
e6d4f032 | 1526 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 1527 | const gdb_byte *regs = (const gdb_byte *) fpregs; |
386c036b MK |
1528 | int i; |
1529 | ||
1530 | for (i = 0; i < 32; i++) | |
1531 | { | |
1532 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 1533 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 1534 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
1535 | } |
1536 | ||
1537 | if (sparc32) | |
1538 | { | |
1539 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1540 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 1541 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
1542 | } |
1543 | else | |
1544 | { | |
1545 | for (i = 0; i < 16; i++) | |
1546 | { | |
1547 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1548 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 1549 | (regs + fpregmap->r_f0_offset |
db75c717 | 1550 | + (32 * 4) + (i * 8))); |
386c036b MK |
1551 | } |
1552 | ||
1553 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1554 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 1555 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
1556 | } |
1557 | } | |
8b39fe56 MK |
1558 | |
1559 | void | |
b4fd25c9 | 1560 | sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 1561 | const struct regcache *regcache, |
386c036b | 1562 | int regnum, void *fpregs) |
8b39fe56 | 1563 | { |
e6d4f032 | 1564 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 1565 | gdb_byte *regs = (gdb_byte *) fpregs; |
386c036b MK |
1566 | int i; |
1567 | ||
1568 | for (i = 0; i < 32; i++) | |
1569 | { | |
1570 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 1571 | regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 1572 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
1573 | } |
1574 | ||
1575 | if (sparc32) | |
1576 | { | |
1577 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1578 | regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 1579 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
1580 | } |
1581 | else | |
1582 | { | |
1583 | for (i = 0; i < 16; i++) | |
1584 | { | |
1585 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1586 | regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 1587 | (regs + fpregmap->r_f0_offset |
db75c717 | 1588 | + (32 * 4) + (i * 8))); |
386c036b MK |
1589 | } |
1590 | ||
1591 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1592 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 1593 | regs + fpregmap->r_fsr_offset); |
386c036b | 1594 | } |
8b39fe56 | 1595 | } |
fd936806 | 1596 | |
b4fd25c9 | 1597 | const struct sparc_fpregmap sparc64_bsd_fpregmap = |
db75c717 DM |
1598 | { |
1599 | 0 * 8, /* %f0 */ | |
1600 | 32 * 8, /* %fsr */ | |
1601 | }; |