Commit | Line | Data |
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8b39fe56 MK |
1 | /* Target-dependent code for UltraSPARC. |
2 | ||
7b6bb8da | 3 | Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
9b254dd1 | 4 | Free Software Foundation, Inc. |
8b39fe56 MK |
5 | |
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
8b39fe56 MK |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
8b39fe56 MK |
20 | |
21 | #include "defs.h" | |
22 | #include "arch-utils.h" | |
02a71ae8 | 23 | #include "dwarf2-frame.h" |
8b39fe56 MK |
24 | #include "floatformat.h" |
25 | #include "frame.h" | |
26 | #include "frame-base.h" | |
27 | #include "frame-unwind.h" | |
28 | #include "gdbcore.h" | |
29 | #include "gdbtypes.h" | |
386c036b MK |
30 | #include "inferior.h" |
31 | #include "symtab.h" | |
32 | #include "objfiles.h" | |
8b39fe56 MK |
33 | #include "osabi.h" |
34 | #include "regcache.h" | |
35 | #include "target.h" | |
36 | #include "value.h" | |
37 | ||
38 | #include "gdb_assert.h" | |
39 | #include "gdb_string.h" | |
40 | ||
41 | #include "sparc64-tdep.h" | |
42 | ||
b021a221 | 43 | /* This file implements the SPARC 64-bit ABI as defined by the |
8b39fe56 MK |
44 | section "Low-Level System Information" of the SPARC Compliance |
45 | Definition (SCD) 2.4.1, which is the 64-bit System V psABI for | |
46 | SPARC. */ | |
47 | ||
48 | /* Please use the sparc32_-prefix for 32-bit specific code, the | |
49 | sparc64_-prefix for 64-bit specific code and the sparc_-prefix for | |
50 | code can handle both. */ | |
8b39fe56 MK |
51 | \f |
52 | /* The functions on this page are intended to be used to classify | |
53 | function arguments. */ | |
54 | ||
8b39fe56 MK |
55 | /* Check whether TYPE is "Integral or Pointer". */ |
56 | ||
57 | static int | |
58 | sparc64_integral_or_pointer_p (const struct type *type) | |
59 | { | |
60 | switch (TYPE_CODE (type)) | |
61 | { | |
62 | case TYPE_CODE_INT: | |
63 | case TYPE_CODE_BOOL: | |
64 | case TYPE_CODE_CHAR: | |
65 | case TYPE_CODE_ENUM: | |
66 | case TYPE_CODE_RANGE: | |
67 | { | |
68 | int len = TYPE_LENGTH (type); | |
69 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); | |
70 | } | |
71 | return 1; | |
72 | case TYPE_CODE_PTR: | |
73 | case TYPE_CODE_REF: | |
74 | { | |
75 | int len = TYPE_LENGTH (type); | |
76 | gdb_assert (len == 8); | |
77 | } | |
78 | return 1; | |
79 | default: | |
80 | break; | |
81 | } | |
82 | ||
83 | return 0; | |
84 | } | |
85 | ||
86 | /* Check whether TYPE is "Floating". */ | |
87 | ||
88 | static int | |
89 | sparc64_floating_p (const struct type *type) | |
90 | { | |
91 | switch (TYPE_CODE (type)) | |
92 | { | |
93 | case TYPE_CODE_FLT: | |
94 | { | |
95 | int len = TYPE_LENGTH (type); | |
96 | gdb_assert (len == 4 || len == 8 || len == 16); | |
97 | } | |
98 | return 1; | |
99 | default: | |
100 | break; | |
101 | } | |
102 | ||
103 | return 0; | |
104 | } | |
105 | ||
0497f5b0 JB |
106 | /* Check whether TYPE is "Structure or Union". |
107 | ||
108 | In terms of Ada subprogram calls, arrays are treated the same as | |
109 | struct and union types. So this function also returns non-zero | |
110 | for array types. */ | |
8b39fe56 MK |
111 | |
112 | static int | |
113 | sparc64_structure_or_union_p (const struct type *type) | |
114 | { | |
115 | switch (TYPE_CODE (type)) | |
116 | { | |
117 | case TYPE_CODE_STRUCT: | |
118 | case TYPE_CODE_UNION: | |
0497f5b0 | 119 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
120 | return 1; |
121 | default: | |
122 | break; | |
123 | } | |
124 | ||
125 | return 0; | |
126 | } | |
fd936806 MK |
127 | \f |
128 | ||
209bd28e | 129 | /* Construct types for ISA-specific registers. */ |
fd936806 | 130 | |
209bd28e UW |
131 | static struct type * |
132 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
133 | { | |
134 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
fd936806 | 135 | |
209bd28e UW |
136 | if (!tdep->sparc64_pstate_type) |
137 | { | |
138 | struct type *type; | |
139 | ||
e9bb382b | 140 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 8); |
209bd28e UW |
141 | append_flags_type_flag (type, 0, "AG"); |
142 | append_flags_type_flag (type, 1, "IE"); | |
143 | append_flags_type_flag (type, 2, "PRIV"); | |
144 | append_flags_type_flag (type, 3, "AM"); | |
145 | append_flags_type_flag (type, 4, "PEF"); | |
146 | append_flags_type_flag (type, 5, "RED"); | |
147 | append_flags_type_flag (type, 8, "TLE"); | |
148 | append_flags_type_flag (type, 9, "CLE"); | |
149 | append_flags_type_flag (type, 10, "PID0"); | |
150 | append_flags_type_flag (type, 11, "PID1"); | |
151 | ||
152 | tdep->sparc64_pstate_type = type; | |
153 | } | |
fd936806 | 154 | |
209bd28e UW |
155 | return tdep->sparc64_pstate_type; |
156 | } | |
fd936806 | 157 | |
209bd28e UW |
158 | static struct type * |
159 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
160 | { | |
161 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
162 | ||
163 | if (!tdep->sparc64_fsr_type) | |
164 | { | |
165 | struct type *type; | |
166 | ||
e9bb382b | 167 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 8); |
209bd28e UW |
168 | append_flags_type_flag (type, 0, "NXA"); |
169 | append_flags_type_flag (type, 1, "DZA"); | |
170 | append_flags_type_flag (type, 2, "UFA"); | |
171 | append_flags_type_flag (type, 3, "OFA"); | |
172 | append_flags_type_flag (type, 4, "NVA"); | |
173 | append_flags_type_flag (type, 5, "NXC"); | |
174 | append_flags_type_flag (type, 6, "DZC"); | |
175 | append_flags_type_flag (type, 7, "UFC"); | |
176 | append_flags_type_flag (type, 8, "OFC"); | |
177 | append_flags_type_flag (type, 9, "NVC"); | |
178 | append_flags_type_flag (type, 22, "NS"); | |
179 | append_flags_type_flag (type, 23, "NXM"); | |
180 | append_flags_type_flag (type, 24, "DZM"); | |
181 | append_flags_type_flag (type, 25, "UFM"); | |
182 | append_flags_type_flag (type, 26, "OFM"); | |
183 | append_flags_type_flag (type, 27, "NVM"); | |
184 | ||
185 | tdep->sparc64_fsr_type = type; | |
186 | } | |
187 | ||
188 | return tdep->sparc64_fsr_type; | |
189 | } | |
190 | ||
191 | static struct type * | |
192 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 193 | { |
209bd28e UW |
194 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
195 | ||
196 | if (!tdep->sparc64_fprs_type) | |
197 | { | |
198 | struct type *type; | |
199 | ||
e9bb382b | 200 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 8); |
209bd28e UW |
201 | append_flags_type_flag (type, 0, "DL"); |
202 | append_flags_type_flag (type, 1, "DU"); | |
203 | append_flags_type_flag (type, 2, "FEF"); | |
204 | ||
205 | tdep->sparc64_fprs_type = type; | |
206 | } | |
207 | ||
208 | return tdep->sparc64_fprs_type; | |
fd936806 | 209 | } |
8b39fe56 | 210 | |
209bd28e | 211 | |
8b39fe56 MK |
212 | /* Register information. */ |
213 | ||
6707b003 | 214 | static const char *sparc64_register_names[] = |
8b39fe56 | 215 | { |
6707b003 UW |
216 | "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", |
217 | "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", | |
218 | "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", | |
219 | "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", | |
220 | ||
221 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", | |
222 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", | |
223 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", | |
224 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", | |
225 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", | |
226 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", | |
227 | ||
228 | "pc", "npc", | |
8b39fe56 | 229 | |
6707b003 UW |
230 | /* FIXME: Give "state" a name until we start using register groups. */ |
231 | "state", | |
232 | "fsr", | |
233 | "fprs", | |
234 | "y", | |
8b39fe56 MK |
235 | }; |
236 | ||
237 | /* Total number of registers. */ | |
6707b003 | 238 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
239 | |
240 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
241 | registers as "psuedo" registers. */ | |
242 | ||
6707b003 | 243 | static const char *sparc64_pseudo_register_names[] = |
8b39fe56 | 244 | { |
6707b003 UW |
245 | "cwp", "pstate", "asi", "ccr", |
246 | ||
247 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
248 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
249 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
250 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
251 | ||
252 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
253 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
254 | }; |
255 | ||
256 | /* Total number of pseudo registers. */ | |
6707b003 | 257 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 MK |
258 | |
259 | /* Return the name of register REGNUM. */ | |
260 | ||
261 | static const char * | |
d93859e2 | 262 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 MK |
263 | { |
264 | if (regnum >= 0 && regnum < SPARC64_NUM_REGS) | |
6707b003 | 265 | return sparc64_register_names[regnum]; |
8b39fe56 MK |
266 | |
267 | if (regnum >= SPARC64_NUM_REGS | |
268 | && regnum < SPARC64_NUM_REGS + SPARC64_NUM_PSEUDO_REGS) | |
6707b003 | 269 | return sparc64_pseudo_register_names[regnum - SPARC64_NUM_REGS]; |
8b39fe56 MK |
270 | |
271 | return NULL; | |
272 | } | |
273 | ||
274 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 275 | register REGNUM. */ |
8b39fe56 MK |
276 | |
277 | static struct type * | |
278 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
279 | { | |
6707b003 UW |
280 | /* Raw registers. */ |
281 | ||
282 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) | |
0dfff4cb | 283 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 284 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 285 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 286 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 287 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 288 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 289 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 290 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 291 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
292 | /* This raw register contains the contents of %cwp, %pstate, %asi |
293 | and %ccr as laid out in a %tstate register. */ | |
294 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 295 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 296 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 297 | return sparc64_fsr_type (gdbarch); |
6707b003 | 298 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 299 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
300 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
301 | reserved and always read as 0." */ | |
302 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 303 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
304 | |
305 | /* Pseudo registers. */ | |
306 | ||
307 | if (regnum == SPARC64_CWP_REGNUM) | |
df4df182 | 308 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 309 | if (regnum == SPARC64_PSTATE_REGNUM) |
209bd28e | 310 | return sparc64_pstate_type (gdbarch); |
6707b003 | 311 | if (regnum == SPARC64_ASI_REGNUM) |
df4df182 | 312 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 313 | if (regnum == SPARC64_CCR_REGNUM) |
df4df182 | 314 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 315 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) |
0dfff4cb | 316 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 317 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) |
0dfff4cb | 318 | return builtin_type (gdbarch)->builtin_long_double; |
6707b003 UW |
319 | |
320 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
321 | } |
322 | ||
05d1431c | 323 | static enum register_status |
8b39fe56 MK |
324 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
325 | struct regcache *regcache, | |
e1613aba | 326 | int regnum, gdb_byte *buf) |
8b39fe56 | 327 | { |
e17a4113 | 328 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
329 | enum register_status status; |
330 | ||
8b39fe56 MK |
331 | gdb_assert (regnum >= SPARC64_NUM_REGS); |
332 | ||
333 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
334 | { | |
335 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
05d1431c PA |
336 | status = regcache_raw_read (regcache, regnum, buf); |
337 | if (status == REG_VALID) | |
338 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
339 | return status; | |
8b39fe56 MK |
340 | } |
341 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
342 | { | |
343 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
05d1431c | 344 | return regcache_raw_read (regcache, regnum, buf); |
8b39fe56 MK |
345 | } |
346 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
347 | { | |
348 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c PA |
349 | |
350 | status = regcache_raw_read (regcache, regnum, buf); | |
351 | if (status == REG_VALID) | |
352 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
353 | if (status == REG_VALID) | |
354 | status = regcache_raw_read (regcache, regnum + 2, buf + 8); | |
355 | if (status == REG_VALID) | |
356 | status = regcache_raw_read (regcache, regnum + 3, buf + 12); | |
357 | ||
358 | return status; | |
8b39fe56 MK |
359 | } |
360 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
361 | { | |
362 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c PA |
363 | |
364 | status = regcache_raw_read (regcache, regnum, buf); | |
365 | if (status == REG_VALID) | |
366 | status = regcache_raw_read (regcache, regnum + 1, buf + 8); | |
367 | ||
368 | return status; | |
8b39fe56 MK |
369 | } |
370 | else if (regnum == SPARC64_CWP_REGNUM | |
371 | || regnum == SPARC64_PSTATE_REGNUM | |
372 | || regnum == SPARC64_ASI_REGNUM | |
373 | || regnum == SPARC64_CCR_REGNUM) | |
374 | { | |
375 | ULONGEST state; | |
376 | ||
05d1431c PA |
377 | status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); |
378 | if (status != REG_VALID) | |
379 | return status; | |
380 | ||
8b39fe56 MK |
381 | switch (regnum) |
382 | { | |
3567a8ea | 383 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
384 | state = (state >> 0) & ((1 << 5) - 1); |
385 | break; | |
3567a8ea | 386 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
387 | state = (state >> 8) & ((1 << 12) - 1); |
388 | break; | |
3567a8ea | 389 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
390 | state = (state >> 24) & ((1 << 8) - 1); |
391 | break; | |
3567a8ea | 392 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
393 | state = (state >> 32) & ((1 << 8) - 1); |
394 | break; | |
395 | } | |
e17a4113 | 396 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 397 | } |
05d1431c PA |
398 | |
399 | return REG_VALID; | |
8b39fe56 MK |
400 | } |
401 | ||
402 | static void | |
403 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
404 | struct regcache *regcache, | |
e1613aba | 405 | int regnum, const gdb_byte *buf) |
8b39fe56 | 406 | { |
e17a4113 | 407 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
8b39fe56 MK |
408 | gdb_assert (regnum >= SPARC64_NUM_REGS); |
409 | ||
410 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
411 | { | |
412 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
413 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 414 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
415 | } |
416 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
417 | { | |
418 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
419 | regcache_raw_write (regcache, regnum, buf); | |
420 | } | |
421 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
422 | { | |
423 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
424 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
425 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
426 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
427 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
428 | } |
429 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
430 | { | |
431 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
432 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 433 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 434 | } |
3567a8ea MK |
435 | else if (regnum == SPARC64_CWP_REGNUM |
436 | || regnum == SPARC64_PSTATE_REGNUM | |
437 | || regnum == SPARC64_ASI_REGNUM | |
438 | || regnum == SPARC64_CCR_REGNUM) | |
439 | { | |
440 | ULONGEST state, bits; | |
441 | ||
442 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 443 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
444 | switch (regnum) |
445 | { | |
446 | case SPARC64_CWP_REGNUM: | |
447 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
448 | break; | |
449 | case SPARC64_PSTATE_REGNUM: | |
450 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
451 | break; | |
452 | case SPARC64_ASI_REGNUM: | |
453 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
454 | break; | |
455 | case SPARC64_CCR_REGNUM: | |
456 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
457 | break; | |
458 | } | |
459 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
460 | } | |
8b39fe56 | 461 | } |
8b39fe56 MK |
462 | \f |
463 | ||
8b39fe56 MK |
464 | /* Return PC of first real instruction of the function starting at |
465 | START_PC. */ | |
466 | ||
467 | static CORE_ADDR | |
6093d2eb | 468 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
469 | { |
470 | struct symtab_and_line sal; | |
471 | CORE_ADDR func_start, func_end; | |
386c036b | 472 | struct sparc_frame_cache cache; |
8b39fe56 MK |
473 | |
474 | /* This is the preferred method, find the end of the prologue by | |
475 | using the debugging information. */ | |
476 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
477 | { | |
478 | sal = find_pc_line (func_start, 0); | |
479 | ||
480 | if (sal.end < func_end | |
481 | && start_pc <= sal.end) | |
482 | return sal.end; | |
483 | } | |
484 | ||
be8626e0 MD |
485 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
486 | &cache); | |
8b39fe56 MK |
487 | } |
488 | ||
489 | /* Normal frames. */ | |
490 | ||
386c036b | 491 | static struct sparc_frame_cache * |
236369e7 | 492 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 493 | { |
236369e7 | 494 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
495 | } |
496 | ||
497 | static void | |
236369e7 | 498 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
499 | struct frame_id *this_id) |
500 | { | |
386c036b | 501 | struct sparc_frame_cache *cache = |
236369e7 | 502 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
503 | |
504 | /* This marks the outermost frame. */ | |
505 | if (cache->base == 0) | |
506 | return; | |
507 | ||
508 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
509 | } | |
510 | ||
236369e7 JB |
511 | static struct value * |
512 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
513 | int regnum) | |
8b39fe56 | 514 | { |
e17a4113 | 515 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 516 | struct sparc_frame_cache *cache = |
236369e7 | 517 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
518 | |
519 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
520 | { | |
236369e7 | 521 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 522 | |
369c397b JB |
523 | regnum = |
524 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
525 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
526 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
527 | } |
528 | ||
f700a364 MK |
529 | /* Handle StackGhost. */ |
530 | { | |
e17a4113 | 531 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
532 | |
533 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
534 | { | |
236369e7 JB |
535 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
536 | ULONGEST i7; | |
537 | ||
538 | /* Read the value in from memory. */ | |
539 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
540 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
541 | } |
542 | } | |
543 | ||
369c397b | 544 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 545 | in the register save area. */ |
369c397b JB |
546 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
547 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 548 | { |
236369e7 | 549 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 550 | |
236369e7 | 551 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
552 | } |
553 | ||
369c397b JB |
554 | /* The previous frame's `out' registers may be accessible as the current |
555 | frame's `in' registers. */ | |
556 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
557 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
558 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
559 | ||
236369e7 | 560 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
561 | } |
562 | ||
563 | static const struct frame_unwind sparc64_frame_unwind = | |
564 | { | |
565 | NORMAL_FRAME, | |
8fbca658 | 566 | default_frame_unwind_stop_reason, |
8b39fe56 | 567 | sparc64_frame_this_id, |
236369e7 JB |
568 | sparc64_frame_prev_register, |
569 | NULL, | |
570 | default_frame_sniffer | |
8b39fe56 | 571 | }; |
8b39fe56 MK |
572 | \f |
573 | ||
574 | static CORE_ADDR | |
236369e7 | 575 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 576 | { |
386c036b | 577 | struct sparc_frame_cache *cache = |
236369e7 | 578 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 579 | |
5b2d44a0 | 580 | return cache->base; |
8b39fe56 MK |
581 | } |
582 | ||
583 | static const struct frame_base sparc64_frame_base = | |
584 | { | |
585 | &sparc64_frame_unwind, | |
586 | sparc64_frame_base_address, | |
587 | sparc64_frame_base_address, | |
588 | sparc64_frame_base_address | |
589 | }; | |
8b39fe56 MK |
590 | \f |
591 | /* Check whether TYPE must be 16-byte aligned. */ | |
592 | ||
593 | static int | |
594 | sparc64_16_byte_align_p (struct type *type) | |
595 | { | |
596 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) | |
597 | return 1; | |
598 | ||
599 | if (sparc64_structure_or_union_p (type)) | |
600 | { | |
601 | int i; | |
602 | ||
603 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
604 | { |
605 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
606 | ||
607 | if (sparc64_16_byte_align_p (subtype)) | |
608 | return 1; | |
609 | } | |
8b39fe56 MK |
610 | } |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | /* Store floating fields of element ELEMENT of an "parameter array" | |
616 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
617 | apropriate registers of REGCACHE. This function can be called | |
618 | recursively and therefore handles floating types in addition to | |
619 | structures. */ | |
620 | ||
621 | static void | |
622 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 623 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 MK |
624 | { |
625 | gdb_assert (element < 16); | |
626 | ||
627 | if (sparc64_floating_p (type)) | |
628 | { | |
629 | int len = TYPE_LENGTH (type); | |
630 | int regnum; | |
631 | ||
632 | if (len == 16) | |
633 | { | |
634 | gdb_assert (bitpos == 0); | |
635 | gdb_assert ((element % 2) == 0); | |
636 | ||
637 | regnum = SPARC64_Q0_REGNUM + element / 2; | |
638 | regcache_cooked_write (regcache, regnum, valbuf); | |
639 | } | |
640 | else if (len == 8) | |
641 | { | |
642 | gdb_assert (bitpos == 0 || bitpos == 64); | |
643 | ||
644 | regnum = SPARC64_D0_REGNUM + element + bitpos / 64; | |
645 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
646 | } | |
647 | else | |
648 | { | |
649 | gdb_assert (len == 4); | |
650 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
651 | ||
652 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
653 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
654 | } | |
655 | } | |
656 | else if (sparc64_structure_or_union_p (type)) | |
657 | { | |
658 | int i; | |
659 | ||
660 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
661 | { |
662 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
663 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
664 | ||
665 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
666 | element, subpos); | |
667 | } | |
200cc553 MK |
668 | |
669 | /* GCC has an interesting bug. If TYPE is a structure that has | |
670 | a single `float' member, GCC doesn't treat it as a structure | |
671 | at all, but rather as an ordinary `float' argument. This | |
672 | argument will be stored in %f1, as required by the psABI. | |
673 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
674 | be stored in %f0. This bug is present in GCC 3.3.2, but |
675 | probably in older releases to. To appease GCC, if a | |
676 | structure has only a single `float' member, we store its | |
677 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
678 | if (TYPE_NFIELDS (type) == 1) |
679 | { | |
680 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
681 | ||
682 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
683 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
684 | } | |
8b39fe56 MK |
685 | } |
686 | } | |
687 | ||
688 | /* Fetch floating fields from a variable of type TYPE from the | |
689 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
690 | in VALBUF. This function can be called recursively and therefore | |
691 | handles floating types in addition to structures. */ | |
692 | ||
693 | static void | |
694 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 695 | gdb_byte *valbuf, int bitpos) |
8b39fe56 MK |
696 | { |
697 | if (sparc64_floating_p (type)) | |
698 | { | |
699 | int len = TYPE_LENGTH (type); | |
700 | int regnum; | |
701 | ||
702 | if (len == 16) | |
703 | { | |
704 | gdb_assert (bitpos == 0 || bitpos == 128); | |
705 | ||
706 | regnum = SPARC64_Q0_REGNUM + bitpos / 128; | |
707 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
708 | } | |
709 | else if (len == 8) | |
710 | { | |
711 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
712 | ||
713 | regnum = SPARC64_D0_REGNUM + bitpos / 64; | |
714 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
715 | } | |
716 | else | |
717 | { | |
718 | gdb_assert (len == 4); | |
719 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
720 | ||
721 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
722 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
723 | } | |
724 | } | |
725 | else if (sparc64_structure_or_union_p (type)) | |
726 | { | |
727 | int i; | |
728 | ||
729 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
730 | { |
731 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
732 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
733 | ||
734 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
735 | } | |
8b39fe56 MK |
736 | } |
737 | } | |
738 | ||
739 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
740 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
741 | ||
742 | static CORE_ADDR | |
743 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
744 | struct value **args, CORE_ADDR sp, | |
745 | int struct_return, CORE_ADDR struct_addr) | |
746 | { | |
df4df182 | 747 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
748 | /* Number of extended words in the "parameter array". */ |
749 | int num_elements = 0; | |
750 | int element = 0; | |
751 | int i; | |
752 | ||
753 | /* Take BIAS into account. */ | |
754 | sp += BIAS; | |
755 | ||
756 | /* First we calculate the number of extended words in the "parameter | |
757 | array". While doing so we also convert some of the arguments. */ | |
758 | ||
759 | if (struct_return) | |
760 | num_elements++; | |
761 | ||
762 | for (i = 0; i < nargs; i++) | |
763 | { | |
4991999e | 764 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
765 | int len = TYPE_LENGTH (type); |
766 | ||
767 | if (sparc64_structure_or_union_p (type)) | |
768 | { | |
769 | /* Structure or Union arguments. */ | |
770 | if (len <= 16) | |
771 | { | |
772 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
773 | num_elements++; | |
774 | num_elements += ((len + 7) / 8); | |
775 | } | |
776 | else | |
777 | { | |
778 | /* The psABI says that "Structures or unions larger than | |
779 | sixteen bytes are copied by the caller and passed | |
780 | indirectly; the caller will pass the address of a | |
781 | correctly aligned structure value. This sixty-four | |
782 | bit address will occupy one word in the parameter | |
783 | array, and may be promoted to an %o register like any | |
784 | other pointer value." Allocate memory for these | |
785 | values on the stack. */ | |
786 | sp -= len; | |
787 | ||
788 | /* Use 16-byte alignment for these values. That's | |
789 | always correct, and wasting a few bytes shouldn't be | |
790 | a problem. */ | |
791 | sp &= ~0xf; | |
792 | ||
0fd88904 | 793 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
794 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
795 | num_elements++; | |
796 | } | |
797 | } | |
798 | else if (sparc64_floating_p (type)) | |
799 | { | |
800 | /* Floating arguments. */ | |
801 | ||
802 | if (len == 16) | |
803 | { | |
804 | /* The psABI says that "Each quad-precision parameter | |
805 | value will be assigned to two extended words in the | |
806 | parameter array. */ | |
807 | num_elements += 2; | |
808 | ||
809 | /* The psABI says that "Long doubles must be | |
810 | quad-aligned, and thus a hole might be introduced | |
811 | into the parameter array to force alignment." Skip | |
812 | an element if necessary. */ | |
813 | if (num_elements % 2) | |
814 | num_elements++; | |
815 | } | |
816 | else | |
817 | num_elements++; | |
818 | } | |
819 | else | |
820 | { | |
821 | /* Integral and pointer arguments. */ | |
822 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
823 | ||
824 | /* The psABI says that "Each argument value of integral type | |
825 | smaller than an extended word will be widened by the | |
826 | caller to an extended word according to the signed-ness | |
827 | of the argument type." */ | |
828 | if (len < 8) | |
df4df182 UW |
829 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
830 | args[i]); | |
8b39fe56 MK |
831 | num_elements++; |
832 | } | |
833 | } | |
834 | ||
835 | /* Allocate the "parameter array". */ | |
836 | sp -= num_elements * 8; | |
837 | ||
838 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
839 | sp &= ~0xf; | |
840 | ||
841 | /* Now we store the arguments in to the "paramater array". Some | |
842 | Integer or Pointer arguments and Structure or Union arguments | |
843 | will be passed in %o registers. Some Floating arguments and | |
844 | floating members of structures are passed in floating-point | |
845 | registers. However, for functions with variable arguments, | |
846 | floating arguments are stored in an %0 register, and for | |
847 | functions without a prototype floating arguments are stored in | |
848 | both a floating-point and an %o registers, or a floating-point | |
849 | register and memory. To simplify the logic here we always pass | |
850 | arguments in memory, an %o register, and a floating-point | |
851 | register if appropriate. This should be no problem since the | |
852 | contents of any unused memory or registers in the "parameter | |
853 | array" are undefined. */ | |
854 | ||
855 | if (struct_return) | |
856 | { | |
857 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
858 | element++; | |
859 | } | |
860 | ||
861 | for (i = 0; i < nargs; i++) | |
862 | { | |
e1613aba | 863 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 864 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
865 | int len = TYPE_LENGTH (type); |
866 | int regnum = -1; | |
e1613aba | 867 | gdb_byte buf[16]; |
8b39fe56 MK |
868 | |
869 | if (sparc64_structure_or_union_p (type)) | |
870 | { | |
871 | /* Structure or Union arguments. */ | |
872 | gdb_assert (len <= 16); | |
873 | memset (buf, 0, sizeof (buf)); | |
874 | valbuf = memcpy (buf, valbuf, len); | |
875 | ||
876 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
877 | element++; | |
878 | ||
879 | if (element < 6) | |
880 | { | |
881 | regnum = SPARC_O0_REGNUM + element; | |
882 | if (len > 8 && element < 5) | |
883 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
884 | } | |
885 | ||
886 | if (element < 16) | |
887 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
888 | } | |
889 | else if (sparc64_floating_p (type)) | |
890 | { | |
891 | /* Floating arguments. */ | |
892 | if (len == 16) | |
893 | { | |
894 | if (element % 2) | |
895 | element++; | |
896 | if (element < 16) | |
897 | regnum = SPARC64_Q0_REGNUM + element / 2; | |
898 | } | |
899 | else if (len == 8) | |
900 | { | |
901 | if (element < 16) | |
902 | regnum = SPARC64_D0_REGNUM + element; | |
903 | } | |
904 | else | |
905 | { | |
906 | /* The psABI says "Each single-precision parameter value | |
907 | will be assigned to one extended word in the | |
908 | parameter array, and right-justified within that | |
909 | word; the left half (even floatregister) is | |
910 | undefined." Even though the psABI says that "the | |
911 | left half is undefined", set it to zero here. */ | |
912 | memset (buf, 0, 4); | |
8ada74e3 MK |
913 | memcpy (buf + 4, valbuf, 4); |
914 | valbuf = buf; | |
8b39fe56 MK |
915 | len = 8; |
916 | if (element < 16) | |
8ada74e3 | 917 | regnum = SPARC64_D0_REGNUM + element; |
8b39fe56 MK |
918 | } |
919 | } | |
920 | else | |
921 | { | |
922 | /* Integral and pointer arguments. */ | |
923 | gdb_assert (len == 8); | |
924 | if (element < 6) | |
925 | regnum = SPARC_O0_REGNUM + element; | |
926 | } | |
927 | ||
928 | if (regnum != -1) | |
929 | { | |
930 | regcache_cooked_write (regcache, regnum, valbuf); | |
931 | ||
932 | /* If we're storing the value in a floating-point register, | |
933 | also store it in the corresponding %0 register(s). */ | |
934 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
935 | { | |
936 | gdb_assert (element < 6); | |
937 | regnum = SPARC_O0_REGNUM + element; | |
938 | regcache_cooked_write (regcache, regnum, valbuf); | |
939 | } | |
940 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
941 | { | |
942 | gdb_assert (element < 6); | |
943 | regnum = SPARC_O0_REGNUM + element; | |
944 | regcache_cooked_write (regcache, regnum, valbuf); | |
d47079be | 945 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
8b39fe56 MK |
946 | } |
947 | } | |
948 | ||
c4f2d4d7 | 949 | /* Always store the argument in memory. */ |
8b39fe56 MK |
950 | write_memory (sp + element * 8, valbuf, len); |
951 | element += ((len + 7) / 8); | |
952 | } | |
953 | ||
954 | gdb_assert (element == num_elements); | |
955 | ||
956 | /* Take BIAS into account. */ | |
957 | sp -= BIAS; | |
958 | return sp; | |
959 | } | |
960 | ||
49a45ecf JB |
961 | static CORE_ADDR |
962 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
963 | { | |
964 | /* The ABI requires 16-byte alignment. */ | |
965 | return address & ~0xf; | |
966 | } | |
967 | ||
8b39fe56 | 968 | static CORE_ADDR |
7d9b040b | 969 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
970 | struct regcache *regcache, CORE_ADDR bp_addr, |
971 | int nargs, struct value **args, CORE_ADDR sp, | |
972 | int struct_return, CORE_ADDR struct_addr) | |
973 | { | |
974 | /* Set return address. */ | |
975 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
976 | ||
977 | /* Set up function arguments. */ | |
978 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
979 | struct_return, struct_addr); | |
980 | ||
981 | /* Allocate the register save area. */ | |
982 | sp -= 16 * 8; | |
983 | ||
984 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 985 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
986 | |
987 | /* Finally, update the stack pointer. */ | |
988 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
989 | ||
5b2d44a0 | 990 | return sp + BIAS; |
8b39fe56 MK |
991 | } |
992 | \f | |
993 | ||
994 | /* Extract from an array REGBUF containing the (raw) register state, a | |
995 | function return value of TYPE, and copy that into VALBUF. */ | |
996 | ||
997 | static void | |
998 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 999 | gdb_byte *valbuf) |
8b39fe56 MK |
1000 | { |
1001 | int len = TYPE_LENGTH (type); | |
e1613aba | 1002 | gdb_byte buf[32]; |
8b39fe56 MK |
1003 | int i; |
1004 | ||
1005 | if (sparc64_structure_or_union_p (type)) | |
1006 | { | |
1007 | /* Structure or Union return values. */ | |
1008 | gdb_assert (len <= 32); | |
1009 | ||
1010 | for (i = 0; i < ((len + 7) / 8); i++) | |
1011 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1012 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
1013 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
1014 | memcpy (valbuf, buf, len); | |
1015 | } | |
1016 | else if (sparc64_floating_p (type)) | |
1017 | { | |
1018 | /* Floating return values. */ | |
1019 | for (i = 0; i < len / 4; i++) | |
1020 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1021 | memcpy (valbuf, buf, len); | |
1022 | } | |
4bd87714 JB |
1023 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1024 | { | |
1025 | /* Small arrays are returned the same way as small structures. */ | |
1026 | gdb_assert (len <= 32); | |
1027 | ||
1028 | for (i = 0; i < ((len + 7) / 8); i++) | |
1029 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1030 | memcpy (valbuf, buf, len); | |
1031 | } | |
8b39fe56 MK |
1032 | else |
1033 | { | |
1034 | /* Integral and pointer return values. */ | |
1035 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1036 | ||
1037 | /* Just stripping off any unused bytes should preserve the | |
1038 | signed-ness just fine. */ | |
1039 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1040 | memcpy (valbuf, buf + 8 - len, len); | |
1041 | } | |
1042 | } | |
1043 | ||
1044 | /* Write into the appropriate registers a function return value stored | |
1045 | in VALBUF of type TYPE. */ | |
1046 | ||
1047 | static void | |
1048 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1049 | const gdb_byte *valbuf) |
8b39fe56 MK |
1050 | { |
1051 | int len = TYPE_LENGTH (type); | |
e1613aba | 1052 | gdb_byte buf[16]; |
8b39fe56 MK |
1053 | int i; |
1054 | ||
1055 | if (sparc64_structure_or_union_p (type)) | |
1056 | { | |
1057 | /* Structure or Union return values. */ | |
1058 | gdb_assert (len <= 32); | |
1059 | ||
1060 | /* Simplify matters by storing the complete value (including | |
1061 | floating members) into %o0 and %o1. Floating members are | |
1062 | also store in the appropriate floating-point registers. */ | |
1063 | memset (buf, 0, sizeof (buf)); | |
1064 | memcpy (buf, valbuf, len); | |
1065 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1066 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1067 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1068 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1069 | } | |
1070 | else if (sparc64_floating_p (type)) | |
1071 | { | |
1072 | /* Floating return values. */ | |
1073 | memcpy (buf, valbuf, len); | |
1074 | for (i = 0; i < len / 4; i++) | |
1075 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1076 | } | |
4bd87714 JB |
1077 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1078 | { | |
1079 | /* Small arrays are returned the same way as small structures. */ | |
1080 | gdb_assert (len <= 32); | |
1081 | ||
1082 | memset (buf, 0, sizeof (buf)); | |
1083 | memcpy (buf, valbuf, len); | |
1084 | for (i = 0; i < ((len + 7) / 8); i++) | |
1085 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1086 | } | |
8b39fe56 MK |
1087 | else |
1088 | { | |
1089 | /* Integral and pointer return values. */ | |
1090 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1091 | ||
1092 | /* ??? Do we need to do any sign-extension here? */ | |
1093 | memset (buf, 0, 8); | |
1094 | memcpy (buf + 8 - len, valbuf, len); | |
1095 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1096 | } | |
1097 | } | |
1098 | ||
60af1db2 | 1099 | static enum return_value_convention |
c055b101 CV |
1100 | sparc64_return_value (struct gdbarch *gdbarch, struct type *func_type, |
1101 | struct type *type, struct regcache *regcache, | |
1102 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1103 | { |
60af1db2 MK |
1104 | if (TYPE_LENGTH (type) > 32) |
1105 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1106 | ||
1107 | if (readbuf) | |
1108 | sparc64_extract_return_value (type, regcache, readbuf); | |
1109 | if (writebuf) | |
1110 | sparc64_store_return_value (type, regcache, writebuf); | |
1111 | ||
1112 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1113 | } |
8b39fe56 | 1114 | \f |
8b39fe56 | 1115 | |
02a71ae8 MK |
1116 | static void |
1117 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1118 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1119 | struct frame_info *this_frame) |
02a71ae8 MK |
1120 | { |
1121 | switch (regnum) | |
1122 | { | |
1123 | case SPARC_G0_REGNUM: | |
1124 | /* Since %g0 is always zero, there is no point in saving it, and | |
1125 | people will be inclined omit it from the CFI. Make sure we | |
1126 | don't warn about that. */ | |
1127 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1128 | break; | |
1129 | case SPARC_SP_REGNUM: | |
1130 | reg->how = DWARF2_FRAME_REG_CFA; | |
1131 | break; | |
1132 | case SPARC64_PC_REGNUM: | |
1133 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1134 | reg->loc.offset = 8; | |
1135 | break; | |
1136 | case SPARC64_NPC_REGNUM: | |
1137 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1138 | reg->loc.offset = 12; | |
1139 | break; | |
1140 | } | |
1141 | } | |
1142 | ||
8b39fe56 | 1143 | void |
386c036b | 1144 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1145 | { |
386c036b | 1146 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1147 | |
386c036b MK |
1148 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1149 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
8b39fe56 | 1150 | |
386c036b | 1151 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1152 | set_gdbarch_long_bit (gdbarch, 64); |
1153 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1154 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 MK |
1155 | |
1156 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); | |
1157 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1158 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1159 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
1160 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); | |
1161 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1162 | ||
1163 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1164 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1165 | |
1166 | /* Call dummy code. */ | |
49a45ecf | 1167 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1168 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1169 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1170 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1171 | ||
60af1db2 | 1172 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1173 | set_gdbarch_stabs_argument_has_addr |
1174 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1175 | |
1176 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
1177 | ||
02a71ae8 MK |
1178 | /* Hook in the DWARF CFI frame unwinder. */ |
1179 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1180 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1181 | StackGhost issues have been resolved. */ | |
1182 | ||
236369e7 | 1183 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1184 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
386c036b MK |
1185 | } |
1186 | \f | |
8b39fe56 | 1187 | |
386c036b | 1188 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1189 | |
386c036b MK |
1190 | #define TSTATE_CWP 0x000000000000001fULL |
1191 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1192 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1193 | |
386c036b MK |
1194 | #define PSR_S 0x00000080 |
1195 | #define PSR_ICC 0x00f00000 | |
1196 | #define PSR_VERS 0x0f000000 | |
1197 | #define PSR_IMPL 0xf0000000 | |
1198 | #define PSR_V8PLUS 0xff000000 | |
1199 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1200 | |
3567a8ea | 1201 | void |
386c036b MK |
1202 | sparc64_supply_gregset (const struct sparc_gregset *gregset, |
1203 | struct regcache *regcache, | |
1204 | int regnum, const void *gregs) | |
8b39fe56 | 1205 | { |
e17a4113 UW |
1206 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1207 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1208 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
e1613aba | 1209 | const gdb_byte *regs = gregs; |
22e74ef9 | 1210 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1211 | int i; |
1212 | ||
386c036b | 1213 | if (sparc32) |
8b39fe56 | 1214 | { |
386c036b MK |
1215 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1216 | { | |
1217 | int offset = gregset->r_tstate_offset; | |
1218 | ULONGEST tstate, psr; | |
e1613aba | 1219 | gdb_byte buf[4]; |
386c036b | 1220 | |
e17a4113 | 1221 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1222 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1223 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1224 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1225 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1226 | } | |
1227 | ||
1228 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1229 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
1230 | regs + gregset->r_pc_offset + 4); | |
1231 | ||
1232 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1233 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
1234 | regs + gregset->r_npc_offset + 4); | |
8b39fe56 | 1235 | |
386c036b | 1236 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1237 | { |
386c036b MK |
1238 | int offset = gregset->r_y_offset + 8 - gregset->r_y_size; |
1239 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); | |
8b39fe56 MK |
1240 | } |
1241 | } | |
1242 | else | |
1243 | { | |
386c036b MK |
1244 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1245 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
1246 | regs + gregset->r_tstate_offset); | |
8b39fe56 | 1247 | |
386c036b MK |
1248 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1249 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
1250 | regs + gregset->r_pc_offset); | |
1251 | ||
1252 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1253 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
1254 | regs + gregset->r_npc_offset); | |
1255 | ||
1256 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1257 | { |
e1613aba | 1258 | gdb_byte buf[8]; |
386c036b MK |
1259 | |
1260 | memset (buf, 0, 8); | |
1261 | memcpy (buf + 8 - gregset->r_y_size, | |
1262 | regs + gregset->r_y_offset, gregset->r_y_size); | |
1263 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); | |
3567a8ea | 1264 | } |
8b39fe56 | 1265 | |
386c036b MK |
1266 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
1267 | && gregset->r_fprs_offset != -1) | |
1268 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, | |
1269 | regs + gregset->r_fprs_offset); | |
1270 | } | |
1271 | ||
1272 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
22e74ef9 | 1273 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero); |
386c036b MK |
1274 | |
1275 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1276 | { | |
1277 | int offset = gregset->r_g1_offset; | |
1278 | ||
1279 | if (sparc32) | |
1280 | offset += 4; | |
1281 | ||
1282 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1283 | { |
3567a8ea | 1284 | if (regnum == i || regnum == -1) |
386c036b MK |
1285 | regcache_raw_supply (regcache, i, regs + offset); |
1286 | offset += 8; | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1291 | { | |
1292 | /* Not all of the register set variants include Locals and | |
1293 | Inputs. For those that don't, we read them off the stack. */ | |
1294 | if (gregset->r_l0_offset == -1) | |
1295 | { | |
1296 | ULONGEST sp; | |
1297 | ||
1298 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1299 | sparc_supply_rwindow (regcache, sp, regnum); | |
1300 | } | |
1301 | else | |
1302 | { | |
1303 | int offset = gregset->r_l0_offset; | |
1304 | ||
1305 | if (sparc32) | |
1306 | offset += 4; | |
1307 | ||
1308 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1309 | { |
386c036b MK |
1310 | if (regnum == i || regnum == -1) |
1311 | regcache_raw_supply (regcache, i, regs + offset); | |
1312 | offset += 8; | |
3567a8ea | 1313 | } |
8b39fe56 MK |
1314 | } |
1315 | } | |
1316 | } | |
1317 | ||
1318 | void | |
386c036b MK |
1319 | sparc64_collect_gregset (const struct sparc_gregset *gregset, |
1320 | const struct regcache *regcache, | |
1321 | int regnum, void *gregs) | |
8b39fe56 | 1322 | { |
e17a4113 UW |
1323 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1324 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1325 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
e1613aba | 1326 | gdb_byte *regs = gregs; |
3567a8ea MK |
1327 | int i; |
1328 | ||
386c036b | 1329 | if (sparc32) |
8b39fe56 | 1330 | { |
386c036b MK |
1331 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1332 | { | |
1333 | int offset = gregset->r_tstate_offset; | |
1334 | ULONGEST tstate, psr; | |
e1613aba | 1335 | gdb_byte buf[8]; |
386c036b | 1336 | |
e17a4113 | 1337 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 1338 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 1339 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
1340 | tstate |= (psr & PSR_ICC) << 12; |
1341 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
1342 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 1343 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
1344 | memcpy (regs + offset, buf, 8); |
1345 | } | |
8b39fe56 | 1346 | |
386c036b MK |
1347 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
1348 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
1349 | regs + gregset->r_pc_offset + 4); | |
1350 | ||
1351 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1352 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
1353 | regs + gregset->r_npc_offset + 4); | |
1354 | ||
1355 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 1356 | { |
386c036b MK |
1357 | int offset = gregset->r_y_offset + 8 - gregset->r_y_size; |
1358 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); | |
8b39fe56 MK |
1359 | } |
1360 | } | |
1361 | else | |
1362 | { | |
386c036b MK |
1363 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1364 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
1365 | regs + gregset->r_tstate_offset); | |
1366 | ||
1367 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
1368 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
1369 | regs + gregset->r_pc_offset); | |
3567a8ea | 1370 | |
386c036b MK |
1371 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
1372 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
1373 | regs + gregset->r_npc_offset); | |
3567a8ea | 1374 | |
386c036b | 1375 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 1376 | { |
e1613aba | 1377 | gdb_byte buf[8]; |
386c036b MK |
1378 | |
1379 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
1380 | memcpy (regs + gregset->r_y_offset, | |
1381 | buf + 8 - gregset->r_y_size, gregset->r_y_size); | |
1382 | } | |
1383 | ||
1384 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
1385 | && gregset->r_fprs_offset != -1) | |
1386 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, | |
1387 | regs + gregset->r_fprs_offset); | |
1388 | ||
1389 | } | |
1390 | ||
1391 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1392 | { | |
1393 | int offset = gregset->r_g1_offset; | |
1394 | ||
1395 | if (sparc32) | |
1396 | offset += 4; | |
1397 | ||
1398 | /* %g0 is always zero. */ | |
1399 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
1400 | { | |
1401 | if (regnum == i || regnum == -1) | |
1402 | regcache_raw_collect (regcache, i, regs + offset); | |
1403 | offset += 8; | |
1404 | } | |
1405 | } | |
1406 | ||
1407 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1408 | { | |
1409 | /* Not all of the register set variants include Locals and | |
1410 | Inputs. For those that don't, we read them off the stack. */ | |
1411 | if (gregset->r_l0_offset != -1) | |
1412 | { | |
1413 | int offset = gregset->r_l0_offset; | |
1414 | ||
1415 | if (sparc32) | |
1416 | offset += 4; | |
1417 | ||
1418 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1419 | { |
386c036b MK |
1420 | if (regnum == i || regnum == -1) |
1421 | regcache_raw_collect (regcache, i, regs + offset); | |
1422 | offset += 8; | |
3567a8ea MK |
1423 | } |
1424 | } | |
8b39fe56 MK |
1425 | } |
1426 | } | |
8b39fe56 | 1427 | |
386c036b MK |
1428 | void |
1429 | sparc64_supply_fpregset (struct regcache *regcache, | |
1430 | int regnum, const void *fpregs) | |
1431 | { | |
e6d4f032 | 1432 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
e1613aba | 1433 | const gdb_byte *regs = fpregs; |
386c036b MK |
1434 | int i; |
1435 | ||
1436 | for (i = 0; i < 32; i++) | |
1437 | { | |
1438 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
1439 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); | |
1440 | } | |
1441 | ||
1442 | if (sparc32) | |
1443 | { | |
1444 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1445 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
1446 | regs + (32 * 4) + (16 * 8) + 4); | |
1447 | } | |
1448 | else | |
1449 | { | |
1450 | for (i = 0; i < 16; i++) | |
1451 | { | |
1452 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1453 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
1454 | regs + (32 * 4) + (i * 8)); | |
1455 | } | |
1456 | ||
1457 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1458 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
1459 | regs + (32 * 4) + (16 * 8)); | |
1460 | } | |
1461 | } | |
8b39fe56 MK |
1462 | |
1463 | void | |
386c036b MK |
1464 | sparc64_collect_fpregset (const struct regcache *regcache, |
1465 | int regnum, void *fpregs) | |
8b39fe56 | 1466 | { |
e6d4f032 | 1467 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
e1613aba | 1468 | gdb_byte *regs = fpregs; |
386c036b MK |
1469 | int i; |
1470 | ||
1471 | for (i = 0; i < 32; i++) | |
1472 | { | |
1473 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
1474 | regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); | |
1475 | } | |
1476 | ||
1477 | if (sparc32) | |
1478 | { | |
1479 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1480 | regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, | |
1481 | regs + (32 * 4) + (16 * 8) + 4); | |
1482 | } | |
1483 | else | |
1484 | { | |
1485 | for (i = 0; i < 16; i++) | |
1486 | { | |
1487 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1488 | regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, | |
1489 | regs + (32 * 4) + (i * 8)); | |
1490 | } | |
1491 | ||
1492 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1493 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
1494 | regs + (32 * 4) + (16 * 8)); | |
1495 | } | |
8b39fe56 | 1496 | } |
fd936806 | 1497 |