Commit | Line | Data |
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8b39fe56 MK |
1 | /* Target-dependent code for UltraSPARC. |
2 | ||
4c38e0a4 | 3 | Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
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 | ||
43 | /* This file implements the The SPARC 64-bit ABI as defined by the | |
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 | ||
106 | /* Check whether TYPE is "Structure or Union". */ | |
107 | ||
108 | static int | |
109 | sparc64_structure_or_union_p (const struct type *type) | |
110 | { | |
111 | switch (TYPE_CODE (type)) | |
112 | { | |
113 | case TYPE_CODE_STRUCT: | |
114 | case TYPE_CODE_UNION: | |
115 | return 1; | |
116 | default: | |
117 | break; | |
118 | } | |
119 | ||
120 | return 0; | |
121 | } | |
fd936806 MK |
122 | \f |
123 | ||
209bd28e | 124 | /* Construct types for ISA-specific registers. */ |
fd936806 | 125 | |
209bd28e UW |
126 | static struct type * |
127 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
128 | { | |
129 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
fd936806 | 130 | |
209bd28e UW |
131 | if (!tdep->sparc64_pstate_type) |
132 | { | |
133 | struct type *type; | |
134 | ||
e9bb382b | 135 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 8); |
209bd28e UW |
136 | append_flags_type_flag (type, 0, "AG"); |
137 | append_flags_type_flag (type, 1, "IE"); | |
138 | append_flags_type_flag (type, 2, "PRIV"); | |
139 | append_flags_type_flag (type, 3, "AM"); | |
140 | append_flags_type_flag (type, 4, "PEF"); | |
141 | append_flags_type_flag (type, 5, "RED"); | |
142 | append_flags_type_flag (type, 8, "TLE"); | |
143 | append_flags_type_flag (type, 9, "CLE"); | |
144 | append_flags_type_flag (type, 10, "PID0"); | |
145 | append_flags_type_flag (type, 11, "PID1"); | |
146 | ||
147 | tdep->sparc64_pstate_type = type; | |
148 | } | |
fd936806 | 149 | |
209bd28e UW |
150 | return tdep->sparc64_pstate_type; |
151 | } | |
fd936806 | 152 | |
209bd28e UW |
153 | static struct type * |
154 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
155 | { | |
156 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
157 | ||
158 | if (!tdep->sparc64_fsr_type) | |
159 | { | |
160 | struct type *type; | |
161 | ||
e9bb382b | 162 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 8); |
209bd28e UW |
163 | append_flags_type_flag (type, 0, "NXA"); |
164 | append_flags_type_flag (type, 1, "DZA"); | |
165 | append_flags_type_flag (type, 2, "UFA"); | |
166 | append_flags_type_flag (type, 3, "OFA"); | |
167 | append_flags_type_flag (type, 4, "NVA"); | |
168 | append_flags_type_flag (type, 5, "NXC"); | |
169 | append_flags_type_flag (type, 6, "DZC"); | |
170 | append_flags_type_flag (type, 7, "UFC"); | |
171 | append_flags_type_flag (type, 8, "OFC"); | |
172 | append_flags_type_flag (type, 9, "NVC"); | |
173 | append_flags_type_flag (type, 22, "NS"); | |
174 | append_flags_type_flag (type, 23, "NXM"); | |
175 | append_flags_type_flag (type, 24, "DZM"); | |
176 | append_flags_type_flag (type, 25, "UFM"); | |
177 | append_flags_type_flag (type, 26, "OFM"); | |
178 | append_flags_type_flag (type, 27, "NVM"); | |
179 | ||
180 | tdep->sparc64_fsr_type = type; | |
181 | } | |
182 | ||
183 | return tdep->sparc64_fsr_type; | |
184 | } | |
185 | ||
186 | static struct type * | |
187 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 188 | { |
209bd28e UW |
189 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
190 | ||
191 | if (!tdep->sparc64_fprs_type) | |
192 | { | |
193 | struct type *type; | |
194 | ||
e9bb382b | 195 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 8); |
209bd28e UW |
196 | append_flags_type_flag (type, 0, "DL"); |
197 | append_flags_type_flag (type, 1, "DU"); | |
198 | append_flags_type_flag (type, 2, "FEF"); | |
199 | ||
200 | tdep->sparc64_fprs_type = type; | |
201 | } | |
202 | ||
203 | return tdep->sparc64_fprs_type; | |
fd936806 | 204 | } |
8b39fe56 | 205 | |
209bd28e | 206 | |
8b39fe56 MK |
207 | /* Register information. */ |
208 | ||
6707b003 | 209 | static const char *sparc64_register_names[] = |
8b39fe56 | 210 | { |
6707b003 UW |
211 | "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", |
212 | "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", | |
213 | "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", | |
214 | "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", | |
215 | ||
216 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", | |
217 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", | |
218 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", | |
219 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", | |
220 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", | |
221 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", | |
222 | ||
223 | "pc", "npc", | |
8b39fe56 | 224 | |
6707b003 UW |
225 | /* FIXME: Give "state" a name until we start using register groups. */ |
226 | "state", | |
227 | "fsr", | |
228 | "fprs", | |
229 | "y", | |
8b39fe56 MK |
230 | }; |
231 | ||
232 | /* Total number of registers. */ | |
6707b003 | 233 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
234 | |
235 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
236 | registers as "psuedo" registers. */ | |
237 | ||
6707b003 | 238 | static const char *sparc64_pseudo_register_names[] = |
8b39fe56 | 239 | { |
6707b003 UW |
240 | "cwp", "pstate", "asi", "ccr", |
241 | ||
242 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
243 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
244 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
245 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
246 | ||
247 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
248 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
249 | }; |
250 | ||
251 | /* Total number of pseudo registers. */ | |
6707b003 | 252 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 MK |
253 | |
254 | /* Return the name of register REGNUM. */ | |
255 | ||
256 | static const char * | |
d93859e2 | 257 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 MK |
258 | { |
259 | if (regnum >= 0 && regnum < SPARC64_NUM_REGS) | |
6707b003 | 260 | return sparc64_register_names[regnum]; |
8b39fe56 MK |
261 | |
262 | if (regnum >= SPARC64_NUM_REGS | |
263 | && regnum < SPARC64_NUM_REGS + SPARC64_NUM_PSEUDO_REGS) | |
6707b003 | 264 | return sparc64_pseudo_register_names[regnum - SPARC64_NUM_REGS]; |
8b39fe56 MK |
265 | |
266 | return NULL; | |
267 | } | |
268 | ||
269 | /* Return the GDB type object for the "standard" data type of data in | |
270 | register REGNUM. */ | |
271 | ||
272 | static struct type * | |
273 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
274 | { | |
6707b003 UW |
275 | /* Raw registers. */ |
276 | ||
277 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) | |
0dfff4cb | 278 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 279 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 280 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 281 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 282 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 283 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 284 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 285 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 286 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
287 | /* This raw register contains the contents of %cwp, %pstate, %asi |
288 | and %ccr as laid out in a %tstate register. */ | |
289 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 290 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 291 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 292 | return sparc64_fsr_type (gdbarch); |
6707b003 | 293 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 294 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
295 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
296 | reserved and always read as 0." */ | |
297 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 298 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
299 | |
300 | /* Pseudo registers. */ | |
301 | ||
302 | if (regnum == SPARC64_CWP_REGNUM) | |
df4df182 | 303 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 304 | if (regnum == SPARC64_PSTATE_REGNUM) |
209bd28e | 305 | return sparc64_pstate_type (gdbarch); |
6707b003 | 306 | if (regnum == SPARC64_ASI_REGNUM) |
df4df182 | 307 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 308 | if (regnum == SPARC64_CCR_REGNUM) |
df4df182 | 309 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 310 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) |
0dfff4cb | 311 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 312 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) |
0dfff4cb | 313 | return builtin_type (gdbarch)->builtin_long_double; |
6707b003 UW |
314 | |
315 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
316 | } |
317 | ||
318 | static void | |
319 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, | |
320 | struct regcache *regcache, | |
e1613aba | 321 | int regnum, gdb_byte *buf) |
8b39fe56 | 322 | { |
e17a4113 | 323 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
8b39fe56 MK |
324 | gdb_assert (regnum >= SPARC64_NUM_REGS); |
325 | ||
326 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
327 | { | |
328 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
329 | regcache_raw_read (regcache, regnum, buf); | |
e1613aba | 330 | regcache_raw_read (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
331 | } |
332 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
333 | { | |
334 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
335 | regcache_raw_read (regcache, regnum, buf); | |
336 | } | |
337 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
338 | { | |
339 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
340 | regcache_raw_read (regcache, regnum, buf); | |
e1613aba MK |
341 | regcache_raw_read (regcache, regnum + 1, buf + 4); |
342 | regcache_raw_read (regcache, regnum + 2, buf + 8); | |
343 | regcache_raw_read (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
344 | } |
345 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
346 | { | |
347 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
348 | regcache_raw_read (regcache, regnum, buf); | |
e1613aba | 349 | regcache_raw_read (regcache, regnum + 1, buf + 8); |
8b39fe56 MK |
350 | } |
351 | else if (regnum == SPARC64_CWP_REGNUM | |
352 | || regnum == SPARC64_PSTATE_REGNUM | |
353 | || regnum == SPARC64_ASI_REGNUM | |
354 | || regnum == SPARC64_CCR_REGNUM) | |
355 | { | |
356 | ULONGEST state; | |
357 | ||
358 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
359 | switch (regnum) | |
360 | { | |
3567a8ea | 361 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
362 | state = (state >> 0) & ((1 << 5) - 1); |
363 | break; | |
3567a8ea | 364 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
365 | state = (state >> 8) & ((1 << 12) - 1); |
366 | break; | |
3567a8ea | 367 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
368 | state = (state >> 24) & ((1 << 8) - 1); |
369 | break; | |
3567a8ea | 370 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
371 | state = (state >> 32) & ((1 << 8) - 1); |
372 | break; | |
373 | } | |
e17a4113 | 374 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 MK |
375 | } |
376 | } | |
377 | ||
378 | static void | |
379 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
380 | struct regcache *regcache, | |
e1613aba | 381 | int regnum, const gdb_byte *buf) |
8b39fe56 | 382 | { |
e17a4113 | 383 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
8b39fe56 MK |
384 | gdb_assert (regnum >= SPARC64_NUM_REGS); |
385 | ||
386 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
387 | { | |
388 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
389 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 390 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
391 | } |
392 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
393 | { | |
394 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
395 | regcache_raw_write (regcache, regnum, buf); | |
396 | } | |
397 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
398 | { | |
399 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
400 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
401 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
402 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
403 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
404 | } |
405 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
406 | { | |
407 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
408 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 409 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 410 | } |
3567a8ea MK |
411 | else if (regnum == SPARC64_CWP_REGNUM |
412 | || regnum == SPARC64_PSTATE_REGNUM | |
413 | || regnum == SPARC64_ASI_REGNUM | |
414 | || regnum == SPARC64_CCR_REGNUM) | |
415 | { | |
416 | ULONGEST state, bits; | |
417 | ||
418 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 419 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
420 | switch (regnum) |
421 | { | |
422 | case SPARC64_CWP_REGNUM: | |
423 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
424 | break; | |
425 | case SPARC64_PSTATE_REGNUM: | |
426 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
427 | break; | |
428 | case SPARC64_ASI_REGNUM: | |
429 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
430 | break; | |
431 | case SPARC64_CCR_REGNUM: | |
432 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
433 | break; | |
434 | } | |
435 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
436 | } | |
8b39fe56 | 437 | } |
8b39fe56 MK |
438 | \f |
439 | ||
8b39fe56 MK |
440 | /* Return PC of first real instruction of the function starting at |
441 | START_PC. */ | |
442 | ||
443 | static CORE_ADDR | |
6093d2eb | 444 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
445 | { |
446 | struct symtab_and_line sal; | |
447 | CORE_ADDR func_start, func_end; | |
386c036b | 448 | struct sparc_frame_cache cache; |
8b39fe56 MK |
449 | |
450 | /* This is the preferred method, find the end of the prologue by | |
451 | using the debugging information. */ | |
452 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
453 | { | |
454 | sal = find_pc_line (func_start, 0); | |
455 | ||
456 | if (sal.end < func_end | |
457 | && start_pc <= sal.end) | |
458 | return sal.end; | |
459 | } | |
460 | ||
be8626e0 MD |
461 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
462 | &cache); | |
8b39fe56 MK |
463 | } |
464 | ||
465 | /* Normal frames. */ | |
466 | ||
386c036b | 467 | static struct sparc_frame_cache * |
236369e7 | 468 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 469 | { |
236369e7 | 470 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
471 | } |
472 | ||
473 | static void | |
236369e7 | 474 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
475 | struct frame_id *this_id) |
476 | { | |
386c036b | 477 | struct sparc_frame_cache *cache = |
236369e7 | 478 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
479 | |
480 | /* This marks the outermost frame. */ | |
481 | if (cache->base == 0) | |
482 | return; | |
483 | ||
484 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
485 | } | |
486 | ||
236369e7 JB |
487 | static struct value * |
488 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
489 | int regnum) | |
8b39fe56 | 490 | { |
e17a4113 | 491 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 492 | struct sparc_frame_cache *cache = |
236369e7 | 493 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
494 | |
495 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
496 | { | |
236369e7 | 497 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 498 | |
236369e7 JB |
499 | regnum = cache->frameless_p ? SPARC_O7_REGNUM : SPARC_I7_REGNUM; |
500 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; | |
501 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
502 | } |
503 | ||
f700a364 MK |
504 | /* Handle StackGhost. */ |
505 | { | |
e17a4113 | 506 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
507 | |
508 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
509 | { | |
236369e7 JB |
510 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
511 | ULONGEST i7; | |
512 | ||
513 | /* Read the value in from memory. */ | |
514 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
515 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
516 | } |
517 | } | |
518 | ||
8b39fe56 MK |
519 | /* The previous frame's `local' and `in' registers have been saved |
520 | in the register save area. */ | |
521 | if (!cache->frameless_p | |
522 | && regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) | |
523 | { | |
236369e7 | 524 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 525 | |
236369e7 | 526 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
527 | } |
528 | ||
529 | /* The previous frame's `out' registers are accessable as the | |
530 | current frame's `in' registers. */ | |
531 | if (!cache->frameless_p | |
532 | && regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) | |
533 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); | |
534 | ||
236369e7 | 535 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
536 | } |
537 | ||
538 | static const struct frame_unwind sparc64_frame_unwind = | |
539 | { | |
540 | NORMAL_FRAME, | |
541 | sparc64_frame_this_id, | |
236369e7 JB |
542 | sparc64_frame_prev_register, |
543 | NULL, | |
544 | default_frame_sniffer | |
8b39fe56 | 545 | }; |
8b39fe56 MK |
546 | \f |
547 | ||
548 | static CORE_ADDR | |
236369e7 | 549 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 550 | { |
386c036b | 551 | struct sparc_frame_cache *cache = |
236369e7 | 552 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 553 | |
5b2d44a0 | 554 | return cache->base; |
8b39fe56 MK |
555 | } |
556 | ||
557 | static const struct frame_base sparc64_frame_base = | |
558 | { | |
559 | &sparc64_frame_unwind, | |
560 | sparc64_frame_base_address, | |
561 | sparc64_frame_base_address, | |
562 | sparc64_frame_base_address | |
563 | }; | |
8b39fe56 MK |
564 | \f |
565 | /* Check whether TYPE must be 16-byte aligned. */ | |
566 | ||
567 | static int | |
568 | sparc64_16_byte_align_p (struct type *type) | |
569 | { | |
570 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) | |
571 | return 1; | |
572 | ||
573 | if (sparc64_structure_or_union_p (type)) | |
574 | { | |
575 | int i; | |
576 | ||
577 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
578 | { |
579 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
580 | ||
581 | if (sparc64_16_byte_align_p (subtype)) | |
582 | return 1; | |
583 | } | |
8b39fe56 MK |
584 | } |
585 | ||
586 | return 0; | |
587 | } | |
588 | ||
589 | /* Store floating fields of element ELEMENT of an "parameter array" | |
590 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
591 | apropriate registers of REGCACHE. This function can be called | |
592 | recursively and therefore handles floating types in addition to | |
593 | structures. */ | |
594 | ||
595 | static void | |
596 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 597 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 MK |
598 | { |
599 | gdb_assert (element < 16); | |
600 | ||
601 | if (sparc64_floating_p (type)) | |
602 | { | |
603 | int len = TYPE_LENGTH (type); | |
604 | int regnum; | |
605 | ||
606 | if (len == 16) | |
607 | { | |
608 | gdb_assert (bitpos == 0); | |
609 | gdb_assert ((element % 2) == 0); | |
610 | ||
611 | regnum = SPARC64_Q0_REGNUM + element / 2; | |
612 | regcache_cooked_write (regcache, regnum, valbuf); | |
613 | } | |
614 | else if (len == 8) | |
615 | { | |
616 | gdb_assert (bitpos == 0 || bitpos == 64); | |
617 | ||
618 | regnum = SPARC64_D0_REGNUM + element + bitpos / 64; | |
619 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
620 | } | |
621 | else | |
622 | { | |
623 | gdb_assert (len == 4); | |
624 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
625 | ||
626 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
627 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
628 | } | |
629 | } | |
630 | else if (sparc64_structure_or_union_p (type)) | |
631 | { | |
632 | int i; | |
633 | ||
634 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
635 | { |
636 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
637 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
638 | ||
639 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
640 | element, subpos); | |
641 | } | |
200cc553 MK |
642 | |
643 | /* GCC has an interesting bug. If TYPE is a structure that has | |
644 | a single `float' member, GCC doesn't treat it as a structure | |
645 | at all, but rather as an ordinary `float' argument. This | |
646 | argument will be stored in %f1, as required by the psABI. | |
647 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
648 | be stored in %f0. This bug is present in GCC 3.3.2, but |
649 | probably in older releases to. To appease GCC, if a | |
650 | structure has only a single `float' member, we store its | |
651 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
652 | if (TYPE_NFIELDS (type) == 1) |
653 | { | |
654 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
655 | ||
656 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
657 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
658 | } | |
8b39fe56 MK |
659 | } |
660 | } | |
661 | ||
662 | /* Fetch floating fields from a variable of type TYPE from the | |
663 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
664 | in VALBUF. This function can be called recursively and therefore | |
665 | handles floating types in addition to structures. */ | |
666 | ||
667 | static void | |
668 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 669 | gdb_byte *valbuf, int bitpos) |
8b39fe56 MK |
670 | { |
671 | if (sparc64_floating_p (type)) | |
672 | { | |
673 | int len = TYPE_LENGTH (type); | |
674 | int regnum; | |
675 | ||
676 | if (len == 16) | |
677 | { | |
678 | gdb_assert (bitpos == 0 || bitpos == 128); | |
679 | ||
680 | regnum = SPARC64_Q0_REGNUM + bitpos / 128; | |
681 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
682 | } | |
683 | else if (len == 8) | |
684 | { | |
685 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
686 | ||
687 | regnum = SPARC64_D0_REGNUM + bitpos / 64; | |
688 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
689 | } | |
690 | else | |
691 | { | |
692 | gdb_assert (len == 4); | |
693 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
694 | ||
695 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
696 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
697 | } | |
698 | } | |
699 | else if (sparc64_structure_or_union_p (type)) | |
700 | { | |
701 | int i; | |
702 | ||
703 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
704 | { |
705 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
706 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
707 | ||
708 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
709 | } | |
8b39fe56 MK |
710 | } |
711 | } | |
712 | ||
713 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
714 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
715 | ||
716 | static CORE_ADDR | |
717 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
718 | struct value **args, CORE_ADDR sp, | |
719 | int struct_return, CORE_ADDR struct_addr) | |
720 | { | |
df4df182 | 721 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
722 | /* Number of extended words in the "parameter array". */ |
723 | int num_elements = 0; | |
724 | int element = 0; | |
725 | int i; | |
726 | ||
727 | /* Take BIAS into account. */ | |
728 | sp += BIAS; | |
729 | ||
730 | /* First we calculate the number of extended words in the "parameter | |
731 | array". While doing so we also convert some of the arguments. */ | |
732 | ||
733 | if (struct_return) | |
734 | num_elements++; | |
735 | ||
736 | for (i = 0; i < nargs; i++) | |
737 | { | |
4991999e | 738 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
739 | int len = TYPE_LENGTH (type); |
740 | ||
741 | if (sparc64_structure_or_union_p (type)) | |
742 | { | |
743 | /* Structure or Union arguments. */ | |
744 | if (len <= 16) | |
745 | { | |
746 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
747 | num_elements++; | |
748 | num_elements += ((len + 7) / 8); | |
749 | } | |
750 | else | |
751 | { | |
752 | /* The psABI says that "Structures or unions larger than | |
753 | sixteen bytes are copied by the caller and passed | |
754 | indirectly; the caller will pass the address of a | |
755 | correctly aligned structure value. This sixty-four | |
756 | bit address will occupy one word in the parameter | |
757 | array, and may be promoted to an %o register like any | |
758 | other pointer value." Allocate memory for these | |
759 | values on the stack. */ | |
760 | sp -= len; | |
761 | ||
762 | /* Use 16-byte alignment for these values. That's | |
763 | always correct, and wasting a few bytes shouldn't be | |
764 | a problem. */ | |
765 | sp &= ~0xf; | |
766 | ||
0fd88904 | 767 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
768 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
769 | num_elements++; | |
770 | } | |
771 | } | |
772 | else if (sparc64_floating_p (type)) | |
773 | { | |
774 | /* Floating arguments. */ | |
775 | ||
776 | if (len == 16) | |
777 | { | |
778 | /* The psABI says that "Each quad-precision parameter | |
779 | value will be assigned to two extended words in the | |
780 | parameter array. */ | |
781 | num_elements += 2; | |
782 | ||
783 | /* The psABI says that "Long doubles must be | |
784 | quad-aligned, and thus a hole might be introduced | |
785 | into the parameter array to force alignment." Skip | |
786 | an element if necessary. */ | |
787 | if (num_elements % 2) | |
788 | num_elements++; | |
789 | } | |
790 | else | |
791 | num_elements++; | |
792 | } | |
793 | else | |
794 | { | |
795 | /* Integral and pointer arguments. */ | |
796 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
797 | ||
798 | /* The psABI says that "Each argument value of integral type | |
799 | smaller than an extended word will be widened by the | |
800 | caller to an extended word according to the signed-ness | |
801 | of the argument type." */ | |
802 | if (len < 8) | |
df4df182 UW |
803 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
804 | args[i]); | |
8b39fe56 MK |
805 | num_elements++; |
806 | } | |
807 | } | |
808 | ||
809 | /* Allocate the "parameter array". */ | |
810 | sp -= num_elements * 8; | |
811 | ||
812 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
813 | sp &= ~0xf; | |
814 | ||
815 | /* Now we store the arguments in to the "paramater array". Some | |
816 | Integer or Pointer arguments and Structure or Union arguments | |
817 | will be passed in %o registers. Some Floating arguments and | |
818 | floating members of structures are passed in floating-point | |
819 | registers. However, for functions with variable arguments, | |
820 | floating arguments are stored in an %0 register, and for | |
821 | functions without a prototype floating arguments are stored in | |
822 | both a floating-point and an %o registers, or a floating-point | |
823 | register and memory. To simplify the logic here we always pass | |
824 | arguments in memory, an %o register, and a floating-point | |
825 | register if appropriate. This should be no problem since the | |
826 | contents of any unused memory or registers in the "parameter | |
827 | array" are undefined. */ | |
828 | ||
829 | if (struct_return) | |
830 | { | |
831 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
832 | element++; | |
833 | } | |
834 | ||
835 | for (i = 0; i < nargs; i++) | |
836 | { | |
e1613aba | 837 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 838 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
839 | int len = TYPE_LENGTH (type); |
840 | int regnum = -1; | |
e1613aba | 841 | gdb_byte buf[16]; |
8b39fe56 MK |
842 | |
843 | if (sparc64_structure_or_union_p (type)) | |
844 | { | |
845 | /* Structure or Union arguments. */ | |
846 | gdb_assert (len <= 16); | |
847 | memset (buf, 0, sizeof (buf)); | |
848 | valbuf = memcpy (buf, valbuf, len); | |
849 | ||
850 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
851 | element++; | |
852 | ||
853 | if (element < 6) | |
854 | { | |
855 | regnum = SPARC_O0_REGNUM + element; | |
856 | if (len > 8 && element < 5) | |
857 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
858 | } | |
859 | ||
860 | if (element < 16) | |
861 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
862 | } | |
863 | else if (sparc64_floating_p (type)) | |
864 | { | |
865 | /* Floating arguments. */ | |
866 | if (len == 16) | |
867 | { | |
868 | if (element % 2) | |
869 | element++; | |
870 | if (element < 16) | |
871 | regnum = SPARC64_Q0_REGNUM + element / 2; | |
872 | } | |
873 | else if (len == 8) | |
874 | { | |
875 | if (element < 16) | |
876 | regnum = SPARC64_D0_REGNUM + element; | |
877 | } | |
878 | else | |
879 | { | |
880 | /* The psABI says "Each single-precision parameter value | |
881 | will be assigned to one extended word in the | |
882 | parameter array, and right-justified within that | |
883 | word; the left half (even floatregister) is | |
884 | undefined." Even though the psABI says that "the | |
885 | left half is undefined", set it to zero here. */ | |
886 | memset (buf, 0, 4); | |
8ada74e3 MK |
887 | memcpy (buf + 4, valbuf, 4); |
888 | valbuf = buf; | |
8b39fe56 MK |
889 | len = 8; |
890 | if (element < 16) | |
8ada74e3 | 891 | regnum = SPARC64_D0_REGNUM + element; |
8b39fe56 MK |
892 | } |
893 | } | |
894 | else | |
895 | { | |
896 | /* Integral and pointer arguments. */ | |
897 | gdb_assert (len == 8); | |
898 | if (element < 6) | |
899 | regnum = SPARC_O0_REGNUM + element; | |
900 | } | |
901 | ||
902 | if (regnum != -1) | |
903 | { | |
904 | regcache_cooked_write (regcache, regnum, valbuf); | |
905 | ||
906 | /* If we're storing the value in a floating-point register, | |
907 | also store it in the corresponding %0 register(s). */ | |
908 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
909 | { | |
910 | gdb_assert (element < 6); | |
911 | regnum = SPARC_O0_REGNUM + element; | |
912 | regcache_cooked_write (regcache, regnum, valbuf); | |
913 | } | |
914 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
915 | { | |
916 | gdb_assert (element < 6); | |
917 | regnum = SPARC_O0_REGNUM + element; | |
918 | regcache_cooked_write (regcache, regnum, valbuf); | |
d47079be | 919 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
8b39fe56 MK |
920 | } |
921 | } | |
922 | ||
c4f2d4d7 | 923 | /* Always store the argument in memory. */ |
8b39fe56 MK |
924 | write_memory (sp + element * 8, valbuf, len); |
925 | element += ((len + 7) / 8); | |
926 | } | |
927 | ||
928 | gdb_assert (element == num_elements); | |
929 | ||
930 | /* Take BIAS into account. */ | |
931 | sp -= BIAS; | |
932 | return sp; | |
933 | } | |
934 | ||
935 | static CORE_ADDR | |
7d9b040b | 936 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
937 | struct regcache *regcache, CORE_ADDR bp_addr, |
938 | int nargs, struct value **args, CORE_ADDR sp, | |
939 | int struct_return, CORE_ADDR struct_addr) | |
940 | { | |
941 | /* Set return address. */ | |
942 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
943 | ||
944 | /* Set up function arguments. */ | |
945 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
946 | struct_return, struct_addr); | |
947 | ||
948 | /* Allocate the register save area. */ | |
949 | sp -= 16 * 8; | |
950 | ||
951 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 952 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
953 | |
954 | /* Finally, update the stack pointer. */ | |
955 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
956 | ||
5b2d44a0 | 957 | return sp + BIAS; |
8b39fe56 MK |
958 | } |
959 | \f | |
960 | ||
961 | /* Extract from an array REGBUF containing the (raw) register state, a | |
962 | function return value of TYPE, and copy that into VALBUF. */ | |
963 | ||
964 | static void | |
965 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 966 | gdb_byte *valbuf) |
8b39fe56 MK |
967 | { |
968 | int len = TYPE_LENGTH (type); | |
e1613aba | 969 | gdb_byte buf[32]; |
8b39fe56 MK |
970 | int i; |
971 | ||
972 | if (sparc64_structure_or_union_p (type)) | |
973 | { | |
974 | /* Structure or Union return values. */ | |
975 | gdb_assert (len <= 32); | |
976 | ||
977 | for (i = 0; i < ((len + 7) / 8); i++) | |
978 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
979 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
980 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
981 | memcpy (valbuf, buf, len); | |
982 | } | |
983 | else if (sparc64_floating_p (type)) | |
984 | { | |
985 | /* Floating return values. */ | |
986 | for (i = 0; i < len / 4; i++) | |
987 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
988 | memcpy (valbuf, buf, len); | |
989 | } | |
4bd87714 JB |
990 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
991 | { | |
992 | /* Small arrays are returned the same way as small structures. */ | |
993 | gdb_assert (len <= 32); | |
994 | ||
995 | for (i = 0; i < ((len + 7) / 8); i++) | |
996 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
997 | memcpy (valbuf, buf, len); | |
998 | } | |
8b39fe56 MK |
999 | else |
1000 | { | |
1001 | /* Integral and pointer return values. */ | |
1002 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1003 | ||
1004 | /* Just stripping off any unused bytes should preserve the | |
1005 | signed-ness just fine. */ | |
1006 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1007 | memcpy (valbuf, buf + 8 - len, len); | |
1008 | } | |
1009 | } | |
1010 | ||
1011 | /* Write into the appropriate registers a function return value stored | |
1012 | in VALBUF of type TYPE. */ | |
1013 | ||
1014 | static void | |
1015 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1016 | const gdb_byte *valbuf) |
8b39fe56 MK |
1017 | { |
1018 | int len = TYPE_LENGTH (type); | |
e1613aba | 1019 | gdb_byte buf[16]; |
8b39fe56 MK |
1020 | int i; |
1021 | ||
1022 | if (sparc64_structure_or_union_p (type)) | |
1023 | { | |
1024 | /* Structure or Union return values. */ | |
1025 | gdb_assert (len <= 32); | |
1026 | ||
1027 | /* Simplify matters by storing the complete value (including | |
1028 | floating members) into %o0 and %o1. Floating members are | |
1029 | also store in the appropriate floating-point registers. */ | |
1030 | memset (buf, 0, sizeof (buf)); | |
1031 | memcpy (buf, valbuf, len); | |
1032 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1033 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1034 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1035 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1036 | } | |
1037 | else if (sparc64_floating_p (type)) | |
1038 | { | |
1039 | /* Floating return values. */ | |
1040 | memcpy (buf, valbuf, len); | |
1041 | for (i = 0; i < len / 4; i++) | |
1042 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1043 | } | |
4bd87714 JB |
1044 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1045 | { | |
1046 | /* Small arrays are returned the same way as small structures. */ | |
1047 | gdb_assert (len <= 32); | |
1048 | ||
1049 | memset (buf, 0, sizeof (buf)); | |
1050 | memcpy (buf, valbuf, len); | |
1051 | for (i = 0; i < ((len + 7) / 8); i++) | |
1052 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1053 | } | |
8b39fe56 MK |
1054 | else |
1055 | { | |
1056 | /* Integral and pointer return values. */ | |
1057 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1058 | ||
1059 | /* ??? Do we need to do any sign-extension here? */ | |
1060 | memset (buf, 0, 8); | |
1061 | memcpy (buf + 8 - len, valbuf, len); | |
1062 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1063 | } | |
1064 | } | |
1065 | ||
60af1db2 | 1066 | static enum return_value_convention |
c055b101 CV |
1067 | sparc64_return_value (struct gdbarch *gdbarch, struct type *func_type, |
1068 | struct type *type, struct regcache *regcache, | |
1069 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1070 | { |
60af1db2 MK |
1071 | if (TYPE_LENGTH (type) > 32) |
1072 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1073 | ||
1074 | if (readbuf) | |
1075 | sparc64_extract_return_value (type, regcache, readbuf); | |
1076 | if (writebuf) | |
1077 | sparc64_store_return_value (type, regcache, writebuf); | |
1078 | ||
1079 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1080 | } |
8b39fe56 | 1081 | \f |
8b39fe56 | 1082 | |
02a71ae8 MK |
1083 | static void |
1084 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1085 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1086 | struct frame_info *this_frame) |
02a71ae8 MK |
1087 | { |
1088 | switch (regnum) | |
1089 | { | |
1090 | case SPARC_G0_REGNUM: | |
1091 | /* Since %g0 is always zero, there is no point in saving it, and | |
1092 | people will be inclined omit it from the CFI. Make sure we | |
1093 | don't warn about that. */ | |
1094 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1095 | break; | |
1096 | case SPARC_SP_REGNUM: | |
1097 | reg->how = DWARF2_FRAME_REG_CFA; | |
1098 | break; | |
1099 | case SPARC64_PC_REGNUM: | |
1100 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1101 | reg->loc.offset = 8; | |
1102 | break; | |
1103 | case SPARC64_NPC_REGNUM: | |
1104 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1105 | reg->loc.offset = 12; | |
1106 | break; | |
1107 | } | |
1108 | } | |
1109 | ||
8b39fe56 | 1110 | void |
386c036b | 1111 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1112 | { |
386c036b | 1113 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1114 | |
386c036b MK |
1115 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1116 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
8b39fe56 | 1117 | |
386c036b | 1118 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1119 | set_gdbarch_long_bit (gdbarch, 64); |
1120 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1121 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 MK |
1122 | |
1123 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); | |
1124 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1125 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1126 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
1127 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); | |
1128 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1129 | ||
1130 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1131 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1132 | |
1133 | /* Call dummy code. */ | |
386c036b MK |
1134 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1135 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1136 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1137 | ||
60af1db2 | 1138 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1139 | set_gdbarch_stabs_argument_has_addr |
1140 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1141 | |
1142 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
1143 | ||
02a71ae8 MK |
1144 | /* Hook in the DWARF CFI frame unwinder. */ |
1145 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1146 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1147 | StackGhost issues have been resolved. */ | |
1148 | ||
236369e7 | 1149 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1150 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
386c036b MK |
1151 | } |
1152 | \f | |
8b39fe56 | 1153 | |
386c036b | 1154 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1155 | |
386c036b MK |
1156 | #define TSTATE_CWP 0x000000000000001fULL |
1157 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1158 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1159 | |
386c036b MK |
1160 | #define PSR_S 0x00000080 |
1161 | #define PSR_ICC 0x00f00000 | |
1162 | #define PSR_VERS 0x0f000000 | |
1163 | #define PSR_IMPL 0xf0000000 | |
1164 | #define PSR_V8PLUS 0xff000000 | |
1165 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1166 | |
3567a8ea | 1167 | void |
386c036b MK |
1168 | sparc64_supply_gregset (const struct sparc_gregset *gregset, |
1169 | struct regcache *regcache, | |
1170 | int regnum, const void *gregs) | |
8b39fe56 | 1171 | { |
e17a4113 UW |
1172 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1173 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1174 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
e1613aba | 1175 | const gdb_byte *regs = gregs; |
8b39fe56 MK |
1176 | int i; |
1177 | ||
386c036b | 1178 | if (sparc32) |
8b39fe56 | 1179 | { |
386c036b MK |
1180 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1181 | { | |
1182 | int offset = gregset->r_tstate_offset; | |
1183 | ULONGEST tstate, psr; | |
e1613aba | 1184 | gdb_byte buf[4]; |
386c036b | 1185 | |
e17a4113 | 1186 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1187 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1188 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1189 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1190 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1191 | } | |
1192 | ||
1193 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1194 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
1195 | regs + gregset->r_pc_offset + 4); | |
1196 | ||
1197 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1198 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
1199 | regs + gregset->r_npc_offset + 4); | |
8b39fe56 | 1200 | |
386c036b | 1201 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1202 | { |
386c036b MK |
1203 | int offset = gregset->r_y_offset + 8 - gregset->r_y_size; |
1204 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); | |
8b39fe56 MK |
1205 | } |
1206 | } | |
1207 | else | |
1208 | { | |
386c036b MK |
1209 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1210 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
1211 | regs + gregset->r_tstate_offset); | |
8b39fe56 | 1212 | |
386c036b MK |
1213 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1214 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
1215 | regs + gregset->r_pc_offset); | |
1216 | ||
1217 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1218 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
1219 | regs + gregset->r_npc_offset); | |
1220 | ||
1221 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1222 | { |
e1613aba | 1223 | gdb_byte buf[8]; |
386c036b MK |
1224 | |
1225 | memset (buf, 0, 8); | |
1226 | memcpy (buf + 8 - gregset->r_y_size, | |
1227 | regs + gregset->r_y_offset, gregset->r_y_size); | |
1228 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); | |
3567a8ea | 1229 | } |
8b39fe56 | 1230 | |
386c036b MK |
1231 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
1232 | && gregset->r_fprs_offset != -1) | |
1233 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, | |
1234 | regs + gregset->r_fprs_offset); | |
1235 | } | |
1236 | ||
1237 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
1238 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, NULL); | |
1239 | ||
1240 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1241 | { | |
1242 | int offset = gregset->r_g1_offset; | |
1243 | ||
1244 | if (sparc32) | |
1245 | offset += 4; | |
1246 | ||
1247 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1248 | { |
3567a8ea | 1249 | if (regnum == i || regnum == -1) |
386c036b MK |
1250 | regcache_raw_supply (regcache, i, regs + offset); |
1251 | offset += 8; | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1256 | { | |
1257 | /* Not all of the register set variants include Locals and | |
1258 | Inputs. For those that don't, we read them off the stack. */ | |
1259 | if (gregset->r_l0_offset == -1) | |
1260 | { | |
1261 | ULONGEST sp; | |
1262 | ||
1263 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1264 | sparc_supply_rwindow (regcache, sp, regnum); | |
1265 | } | |
1266 | else | |
1267 | { | |
1268 | int offset = gregset->r_l0_offset; | |
1269 | ||
1270 | if (sparc32) | |
1271 | offset += 4; | |
1272 | ||
1273 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1274 | { |
386c036b MK |
1275 | if (regnum == i || regnum == -1) |
1276 | regcache_raw_supply (regcache, i, regs + offset); | |
1277 | offset += 8; | |
3567a8ea | 1278 | } |
8b39fe56 MK |
1279 | } |
1280 | } | |
1281 | } | |
1282 | ||
1283 | void | |
386c036b MK |
1284 | sparc64_collect_gregset (const struct sparc_gregset *gregset, |
1285 | const struct regcache *regcache, | |
1286 | int regnum, void *gregs) | |
8b39fe56 | 1287 | { |
e17a4113 UW |
1288 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1289 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1290 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
e1613aba | 1291 | gdb_byte *regs = gregs; |
3567a8ea MK |
1292 | int i; |
1293 | ||
386c036b | 1294 | if (sparc32) |
8b39fe56 | 1295 | { |
386c036b MK |
1296 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1297 | { | |
1298 | int offset = gregset->r_tstate_offset; | |
1299 | ULONGEST tstate, psr; | |
e1613aba | 1300 | gdb_byte buf[8]; |
386c036b | 1301 | |
e17a4113 | 1302 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 1303 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 1304 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
1305 | tstate |= (psr & PSR_ICC) << 12; |
1306 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
1307 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 1308 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
1309 | memcpy (regs + offset, buf, 8); |
1310 | } | |
8b39fe56 | 1311 | |
386c036b MK |
1312 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
1313 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
1314 | regs + gregset->r_pc_offset + 4); | |
1315 | ||
1316 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1317 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
1318 | regs + gregset->r_npc_offset + 4); | |
1319 | ||
1320 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 1321 | { |
386c036b MK |
1322 | int offset = gregset->r_y_offset + 8 - gregset->r_y_size; |
1323 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); | |
8b39fe56 MK |
1324 | } |
1325 | } | |
1326 | else | |
1327 | { | |
386c036b MK |
1328 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1329 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
1330 | regs + gregset->r_tstate_offset); | |
1331 | ||
1332 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
1333 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
1334 | regs + gregset->r_pc_offset); | |
3567a8ea | 1335 | |
386c036b MK |
1336 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
1337 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
1338 | regs + gregset->r_npc_offset); | |
3567a8ea | 1339 | |
386c036b | 1340 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 1341 | { |
e1613aba | 1342 | gdb_byte buf[8]; |
386c036b MK |
1343 | |
1344 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
1345 | memcpy (regs + gregset->r_y_offset, | |
1346 | buf + 8 - gregset->r_y_size, gregset->r_y_size); | |
1347 | } | |
1348 | ||
1349 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
1350 | && gregset->r_fprs_offset != -1) | |
1351 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, | |
1352 | regs + gregset->r_fprs_offset); | |
1353 | ||
1354 | } | |
1355 | ||
1356 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1357 | { | |
1358 | int offset = gregset->r_g1_offset; | |
1359 | ||
1360 | if (sparc32) | |
1361 | offset += 4; | |
1362 | ||
1363 | /* %g0 is always zero. */ | |
1364 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
1365 | { | |
1366 | if (regnum == i || regnum == -1) | |
1367 | regcache_raw_collect (regcache, i, regs + offset); | |
1368 | offset += 8; | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1373 | { | |
1374 | /* Not all of the register set variants include Locals and | |
1375 | Inputs. For those that don't, we read them off the stack. */ | |
1376 | if (gregset->r_l0_offset != -1) | |
1377 | { | |
1378 | int offset = gregset->r_l0_offset; | |
1379 | ||
1380 | if (sparc32) | |
1381 | offset += 4; | |
1382 | ||
1383 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1384 | { |
386c036b MK |
1385 | if (regnum == i || regnum == -1) |
1386 | regcache_raw_collect (regcache, i, regs + offset); | |
1387 | offset += 8; | |
3567a8ea MK |
1388 | } |
1389 | } | |
8b39fe56 MK |
1390 | } |
1391 | } | |
8b39fe56 | 1392 | |
386c036b MK |
1393 | void |
1394 | sparc64_supply_fpregset (struct regcache *regcache, | |
1395 | int regnum, const void *fpregs) | |
1396 | { | |
e6d4f032 | 1397 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
e1613aba | 1398 | const gdb_byte *regs = fpregs; |
386c036b MK |
1399 | int i; |
1400 | ||
1401 | for (i = 0; i < 32; i++) | |
1402 | { | |
1403 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
1404 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); | |
1405 | } | |
1406 | ||
1407 | if (sparc32) | |
1408 | { | |
1409 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1410 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
1411 | regs + (32 * 4) + (16 * 8) + 4); | |
1412 | } | |
1413 | else | |
1414 | { | |
1415 | for (i = 0; i < 16; i++) | |
1416 | { | |
1417 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1418 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
1419 | regs + (32 * 4) + (i * 8)); | |
1420 | } | |
1421 | ||
1422 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1423 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
1424 | regs + (32 * 4) + (16 * 8)); | |
1425 | } | |
1426 | } | |
8b39fe56 MK |
1427 | |
1428 | void | |
386c036b MK |
1429 | sparc64_collect_fpregset (const struct regcache *regcache, |
1430 | int regnum, void *fpregs) | |
8b39fe56 | 1431 | { |
e6d4f032 | 1432 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
e1613aba | 1433 | 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_collect (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_collect (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_collect (regcache, SPARC64_F32_REGNUM + i, | |
1454 | regs + (32 * 4) + (i * 8)); | |
1455 | } | |
1456 | ||
1457 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1458 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
1459 | regs + (32 * 4) + (16 * 8)); | |
1460 | } | |
8b39fe56 | 1461 | } |
fd936806 | 1462 |