Commit | Line | Data |
---|---|---|
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 | ||
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 | |
275 | register REGNUM. */ | |
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 | ||
323 | static void | |
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); |
8b39fe56 MK |
329 | gdb_assert (regnum >= SPARC64_NUM_REGS); |
330 | ||
331 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
332 | { | |
333 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
334 | regcache_raw_read (regcache, regnum, buf); | |
e1613aba | 335 | regcache_raw_read (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
336 | } |
337 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
338 | { | |
339 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
340 | regcache_raw_read (regcache, regnum, buf); | |
341 | } | |
342 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
343 | { | |
344 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
345 | regcache_raw_read (regcache, regnum, buf); | |
e1613aba MK |
346 | regcache_raw_read (regcache, regnum + 1, buf + 4); |
347 | regcache_raw_read (regcache, regnum + 2, buf + 8); | |
348 | regcache_raw_read (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
349 | } |
350 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
351 | { | |
352 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
353 | regcache_raw_read (regcache, regnum, buf); | |
e1613aba | 354 | regcache_raw_read (regcache, regnum + 1, buf + 8); |
8b39fe56 MK |
355 | } |
356 | else if (regnum == SPARC64_CWP_REGNUM | |
357 | || regnum == SPARC64_PSTATE_REGNUM | |
358 | || regnum == SPARC64_ASI_REGNUM | |
359 | || regnum == SPARC64_CCR_REGNUM) | |
360 | { | |
361 | ULONGEST state; | |
362 | ||
363 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
364 | switch (regnum) | |
365 | { | |
3567a8ea | 366 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
367 | state = (state >> 0) & ((1 << 5) - 1); |
368 | break; | |
3567a8ea | 369 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
370 | state = (state >> 8) & ((1 << 12) - 1); |
371 | break; | |
3567a8ea | 372 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
373 | state = (state >> 24) & ((1 << 8) - 1); |
374 | break; | |
3567a8ea | 375 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
376 | state = (state >> 32) & ((1 << 8) - 1); |
377 | break; | |
378 | } | |
e17a4113 | 379 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 MK |
380 | } |
381 | } | |
382 | ||
383 | static void | |
384 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
385 | struct regcache *regcache, | |
e1613aba | 386 | int regnum, const gdb_byte *buf) |
8b39fe56 | 387 | { |
e17a4113 | 388 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
8b39fe56 MK |
389 | gdb_assert (regnum >= SPARC64_NUM_REGS); |
390 | ||
391 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
392 | { | |
393 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
394 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 395 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
396 | } |
397 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
398 | { | |
399 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
400 | regcache_raw_write (regcache, regnum, buf); | |
401 | } | |
402 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
403 | { | |
404 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
405 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
406 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
407 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
408 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
409 | } |
410 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
411 | { | |
412 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
413 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 414 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 415 | } |
3567a8ea MK |
416 | else if (regnum == SPARC64_CWP_REGNUM |
417 | || regnum == SPARC64_PSTATE_REGNUM | |
418 | || regnum == SPARC64_ASI_REGNUM | |
419 | || regnum == SPARC64_CCR_REGNUM) | |
420 | { | |
421 | ULONGEST state, bits; | |
422 | ||
423 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 424 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
425 | switch (regnum) |
426 | { | |
427 | case SPARC64_CWP_REGNUM: | |
428 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
429 | break; | |
430 | case SPARC64_PSTATE_REGNUM: | |
431 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
432 | break; | |
433 | case SPARC64_ASI_REGNUM: | |
434 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
435 | break; | |
436 | case SPARC64_CCR_REGNUM: | |
437 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
438 | break; | |
439 | } | |
440 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
441 | } | |
8b39fe56 | 442 | } |
8b39fe56 MK |
443 | \f |
444 | ||
8b39fe56 MK |
445 | /* Return PC of first real instruction of the function starting at |
446 | START_PC. */ | |
447 | ||
448 | static CORE_ADDR | |
6093d2eb | 449 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
450 | { |
451 | struct symtab_and_line sal; | |
452 | CORE_ADDR func_start, func_end; | |
386c036b | 453 | struct sparc_frame_cache cache; |
8b39fe56 MK |
454 | |
455 | /* This is the preferred method, find the end of the prologue by | |
456 | using the debugging information. */ | |
457 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
458 | { | |
459 | sal = find_pc_line (func_start, 0); | |
460 | ||
461 | if (sal.end < func_end | |
462 | && start_pc <= sal.end) | |
463 | return sal.end; | |
464 | } | |
465 | ||
be8626e0 MD |
466 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
467 | &cache); | |
8b39fe56 MK |
468 | } |
469 | ||
470 | /* Normal frames. */ | |
471 | ||
386c036b | 472 | static struct sparc_frame_cache * |
236369e7 | 473 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 474 | { |
236369e7 | 475 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
476 | } |
477 | ||
478 | static void | |
236369e7 | 479 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
480 | struct frame_id *this_id) |
481 | { | |
386c036b | 482 | struct sparc_frame_cache *cache = |
236369e7 | 483 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
484 | |
485 | /* This marks the outermost frame. */ | |
486 | if (cache->base == 0) | |
487 | return; | |
488 | ||
489 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
490 | } | |
491 | ||
236369e7 JB |
492 | static struct value * |
493 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
494 | int regnum) | |
8b39fe56 | 495 | { |
e17a4113 | 496 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 497 | struct sparc_frame_cache *cache = |
236369e7 | 498 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
499 | |
500 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
501 | { | |
236369e7 | 502 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 503 | |
236369e7 JB |
504 | regnum = cache->frameless_p ? SPARC_O7_REGNUM : SPARC_I7_REGNUM; |
505 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; | |
506 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
507 | } |
508 | ||
f700a364 MK |
509 | /* Handle StackGhost. */ |
510 | { | |
e17a4113 | 511 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
512 | |
513 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
514 | { | |
236369e7 JB |
515 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
516 | ULONGEST i7; | |
517 | ||
518 | /* Read the value in from memory. */ | |
519 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
520 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
521 | } |
522 | } | |
523 | ||
8b39fe56 MK |
524 | /* The previous frame's `local' and `in' registers have been saved |
525 | in the register save area. */ | |
526 | if (!cache->frameless_p | |
527 | && regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) | |
528 | { | |
236369e7 | 529 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 530 | |
236369e7 | 531 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
532 | } |
533 | ||
534 | /* The previous frame's `out' registers are accessable as the | |
535 | current frame's `in' registers. */ | |
536 | if (!cache->frameless_p | |
537 | && regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM) | |
538 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); | |
539 | ||
236369e7 | 540 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
541 | } |
542 | ||
543 | static const struct frame_unwind sparc64_frame_unwind = | |
544 | { | |
545 | NORMAL_FRAME, | |
546 | sparc64_frame_this_id, | |
236369e7 JB |
547 | sparc64_frame_prev_register, |
548 | NULL, | |
549 | default_frame_sniffer | |
8b39fe56 | 550 | }; |
8b39fe56 MK |
551 | \f |
552 | ||
553 | static CORE_ADDR | |
236369e7 | 554 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 555 | { |
386c036b | 556 | struct sparc_frame_cache *cache = |
236369e7 | 557 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 558 | |
5b2d44a0 | 559 | return cache->base; |
8b39fe56 MK |
560 | } |
561 | ||
562 | static const struct frame_base sparc64_frame_base = | |
563 | { | |
564 | &sparc64_frame_unwind, | |
565 | sparc64_frame_base_address, | |
566 | sparc64_frame_base_address, | |
567 | sparc64_frame_base_address | |
568 | }; | |
8b39fe56 MK |
569 | \f |
570 | /* Check whether TYPE must be 16-byte aligned. */ | |
571 | ||
572 | static int | |
573 | sparc64_16_byte_align_p (struct type *type) | |
574 | { | |
575 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) | |
576 | return 1; | |
577 | ||
578 | if (sparc64_structure_or_union_p (type)) | |
579 | { | |
580 | int i; | |
581 | ||
582 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
583 | { |
584 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
585 | ||
586 | if (sparc64_16_byte_align_p (subtype)) | |
587 | return 1; | |
588 | } | |
8b39fe56 MK |
589 | } |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
594 | /* Store floating fields of element ELEMENT of an "parameter array" | |
595 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
596 | apropriate registers of REGCACHE. This function can be called | |
597 | recursively and therefore handles floating types in addition to | |
598 | structures. */ | |
599 | ||
600 | static void | |
601 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 602 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 MK |
603 | { |
604 | gdb_assert (element < 16); | |
605 | ||
606 | if (sparc64_floating_p (type)) | |
607 | { | |
608 | int len = TYPE_LENGTH (type); | |
609 | int regnum; | |
610 | ||
611 | if (len == 16) | |
612 | { | |
613 | gdb_assert (bitpos == 0); | |
614 | gdb_assert ((element % 2) == 0); | |
615 | ||
616 | regnum = SPARC64_Q0_REGNUM + element / 2; | |
617 | regcache_cooked_write (regcache, regnum, valbuf); | |
618 | } | |
619 | else if (len == 8) | |
620 | { | |
621 | gdb_assert (bitpos == 0 || bitpos == 64); | |
622 | ||
623 | regnum = SPARC64_D0_REGNUM + element + bitpos / 64; | |
624 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
625 | } | |
626 | else | |
627 | { | |
628 | gdb_assert (len == 4); | |
629 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
630 | ||
631 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
632 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
633 | } | |
634 | } | |
635 | else if (sparc64_structure_or_union_p (type)) | |
636 | { | |
637 | int i; | |
638 | ||
639 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
640 | { |
641 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
642 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
643 | ||
644 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
645 | element, subpos); | |
646 | } | |
200cc553 MK |
647 | |
648 | /* GCC has an interesting bug. If TYPE is a structure that has | |
649 | a single `float' member, GCC doesn't treat it as a structure | |
650 | at all, but rather as an ordinary `float' argument. This | |
651 | argument will be stored in %f1, as required by the psABI. | |
652 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
653 | be stored in %f0. This bug is present in GCC 3.3.2, but |
654 | probably in older releases to. To appease GCC, if a | |
655 | structure has only a single `float' member, we store its | |
656 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
657 | if (TYPE_NFIELDS (type) == 1) |
658 | { | |
659 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
660 | ||
661 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
662 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
663 | } | |
8b39fe56 MK |
664 | } |
665 | } | |
666 | ||
667 | /* Fetch floating fields from a variable of type TYPE from the | |
668 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
669 | in VALBUF. This function can be called recursively and therefore | |
670 | handles floating types in addition to structures. */ | |
671 | ||
672 | static void | |
673 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 674 | gdb_byte *valbuf, int bitpos) |
8b39fe56 MK |
675 | { |
676 | if (sparc64_floating_p (type)) | |
677 | { | |
678 | int len = TYPE_LENGTH (type); | |
679 | int regnum; | |
680 | ||
681 | if (len == 16) | |
682 | { | |
683 | gdb_assert (bitpos == 0 || bitpos == 128); | |
684 | ||
685 | regnum = SPARC64_Q0_REGNUM + bitpos / 128; | |
686 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
687 | } | |
688 | else if (len == 8) | |
689 | { | |
690 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
691 | ||
692 | regnum = SPARC64_D0_REGNUM + bitpos / 64; | |
693 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
694 | } | |
695 | else | |
696 | { | |
697 | gdb_assert (len == 4); | |
698 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
699 | ||
700 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
701 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
702 | } | |
703 | } | |
704 | else if (sparc64_structure_or_union_p (type)) | |
705 | { | |
706 | int i; | |
707 | ||
708 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
709 | { |
710 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
711 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
712 | ||
713 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
714 | } | |
8b39fe56 MK |
715 | } |
716 | } | |
717 | ||
718 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
719 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
720 | ||
721 | static CORE_ADDR | |
722 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
723 | struct value **args, CORE_ADDR sp, | |
724 | int struct_return, CORE_ADDR struct_addr) | |
725 | { | |
df4df182 | 726 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
727 | /* Number of extended words in the "parameter array". */ |
728 | int num_elements = 0; | |
729 | int element = 0; | |
730 | int i; | |
731 | ||
732 | /* Take BIAS into account. */ | |
733 | sp += BIAS; | |
734 | ||
735 | /* First we calculate the number of extended words in the "parameter | |
736 | array". While doing so we also convert some of the arguments. */ | |
737 | ||
738 | if (struct_return) | |
739 | num_elements++; | |
740 | ||
741 | for (i = 0; i < nargs; i++) | |
742 | { | |
4991999e | 743 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
744 | int len = TYPE_LENGTH (type); |
745 | ||
746 | if (sparc64_structure_or_union_p (type)) | |
747 | { | |
748 | /* Structure or Union arguments. */ | |
749 | if (len <= 16) | |
750 | { | |
751 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
752 | num_elements++; | |
753 | num_elements += ((len + 7) / 8); | |
754 | } | |
755 | else | |
756 | { | |
757 | /* The psABI says that "Structures or unions larger than | |
758 | sixteen bytes are copied by the caller and passed | |
759 | indirectly; the caller will pass the address of a | |
760 | correctly aligned structure value. This sixty-four | |
761 | bit address will occupy one word in the parameter | |
762 | array, and may be promoted to an %o register like any | |
763 | other pointer value." Allocate memory for these | |
764 | values on the stack. */ | |
765 | sp -= len; | |
766 | ||
767 | /* Use 16-byte alignment for these values. That's | |
768 | always correct, and wasting a few bytes shouldn't be | |
769 | a problem. */ | |
770 | sp &= ~0xf; | |
771 | ||
0fd88904 | 772 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
773 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
774 | num_elements++; | |
775 | } | |
776 | } | |
777 | else if (sparc64_floating_p (type)) | |
778 | { | |
779 | /* Floating arguments. */ | |
780 | ||
781 | if (len == 16) | |
782 | { | |
783 | /* The psABI says that "Each quad-precision parameter | |
784 | value will be assigned to two extended words in the | |
785 | parameter array. */ | |
786 | num_elements += 2; | |
787 | ||
788 | /* The psABI says that "Long doubles must be | |
789 | quad-aligned, and thus a hole might be introduced | |
790 | into the parameter array to force alignment." Skip | |
791 | an element if necessary. */ | |
792 | if (num_elements % 2) | |
793 | num_elements++; | |
794 | } | |
795 | else | |
796 | num_elements++; | |
797 | } | |
798 | else | |
799 | { | |
800 | /* Integral and pointer arguments. */ | |
801 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
802 | ||
803 | /* The psABI says that "Each argument value of integral type | |
804 | smaller than an extended word will be widened by the | |
805 | caller to an extended word according to the signed-ness | |
806 | of the argument type." */ | |
807 | if (len < 8) | |
df4df182 UW |
808 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
809 | args[i]); | |
8b39fe56 MK |
810 | num_elements++; |
811 | } | |
812 | } | |
813 | ||
814 | /* Allocate the "parameter array". */ | |
815 | sp -= num_elements * 8; | |
816 | ||
817 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
818 | sp &= ~0xf; | |
819 | ||
820 | /* Now we store the arguments in to the "paramater array". Some | |
821 | Integer or Pointer arguments and Structure or Union arguments | |
822 | will be passed in %o registers. Some Floating arguments and | |
823 | floating members of structures are passed in floating-point | |
824 | registers. However, for functions with variable arguments, | |
825 | floating arguments are stored in an %0 register, and for | |
826 | functions without a prototype floating arguments are stored in | |
827 | both a floating-point and an %o registers, or a floating-point | |
828 | register and memory. To simplify the logic here we always pass | |
829 | arguments in memory, an %o register, and a floating-point | |
830 | register if appropriate. This should be no problem since the | |
831 | contents of any unused memory or registers in the "parameter | |
832 | array" are undefined. */ | |
833 | ||
834 | if (struct_return) | |
835 | { | |
836 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
837 | element++; | |
838 | } | |
839 | ||
840 | for (i = 0; i < nargs; i++) | |
841 | { | |
e1613aba | 842 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 843 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
844 | int len = TYPE_LENGTH (type); |
845 | int regnum = -1; | |
e1613aba | 846 | gdb_byte buf[16]; |
8b39fe56 MK |
847 | |
848 | if (sparc64_structure_or_union_p (type)) | |
849 | { | |
850 | /* Structure or Union arguments. */ | |
851 | gdb_assert (len <= 16); | |
852 | memset (buf, 0, sizeof (buf)); | |
853 | valbuf = memcpy (buf, valbuf, len); | |
854 | ||
855 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
856 | element++; | |
857 | ||
858 | if (element < 6) | |
859 | { | |
860 | regnum = SPARC_O0_REGNUM + element; | |
861 | if (len > 8 && element < 5) | |
862 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
863 | } | |
864 | ||
865 | if (element < 16) | |
866 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
867 | } | |
868 | else if (sparc64_floating_p (type)) | |
869 | { | |
870 | /* Floating arguments. */ | |
871 | if (len == 16) | |
872 | { | |
873 | if (element % 2) | |
874 | element++; | |
875 | if (element < 16) | |
876 | regnum = SPARC64_Q0_REGNUM + element / 2; | |
877 | } | |
878 | else if (len == 8) | |
879 | { | |
880 | if (element < 16) | |
881 | regnum = SPARC64_D0_REGNUM + element; | |
882 | } | |
883 | else | |
884 | { | |
885 | /* The psABI says "Each single-precision parameter value | |
886 | will be assigned to one extended word in the | |
887 | parameter array, and right-justified within that | |
888 | word; the left half (even floatregister) is | |
889 | undefined." Even though the psABI says that "the | |
890 | left half is undefined", set it to zero here. */ | |
891 | memset (buf, 0, 4); | |
8ada74e3 MK |
892 | memcpy (buf + 4, valbuf, 4); |
893 | valbuf = buf; | |
8b39fe56 MK |
894 | len = 8; |
895 | if (element < 16) | |
8ada74e3 | 896 | regnum = SPARC64_D0_REGNUM + element; |
8b39fe56 MK |
897 | } |
898 | } | |
899 | else | |
900 | { | |
901 | /* Integral and pointer arguments. */ | |
902 | gdb_assert (len == 8); | |
903 | if (element < 6) | |
904 | regnum = SPARC_O0_REGNUM + element; | |
905 | } | |
906 | ||
907 | if (regnum != -1) | |
908 | { | |
909 | regcache_cooked_write (regcache, regnum, valbuf); | |
910 | ||
911 | /* If we're storing the value in a floating-point register, | |
912 | also store it in the corresponding %0 register(s). */ | |
913 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
914 | { | |
915 | gdb_assert (element < 6); | |
916 | regnum = SPARC_O0_REGNUM + element; | |
917 | regcache_cooked_write (regcache, regnum, valbuf); | |
918 | } | |
919 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
920 | { | |
921 | gdb_assert (element < 6); | |
922 | regnum = SPARC_O0_REGNUM + element; | |
923 | regcache_cooked_write (regcache, regnum, valbuf); | |
d47079be | 924 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
8b39fe56 MK |
925 | } |
926 | } | |
927 | ||
c4f2d4d7 | 928 | /* Always store the argument in memory. */ |
8b39fe56 MK |
929 | write_memory (sp + element * 8, valbuf, len); |
930 | element += ((len + 7) / 8); | |
931 | } | |
932 | ||
933 | gdb_assert (element == num_elements); | |
934 | ||
935 | /* Take BIAS into account. */ | |
936 | sp -= BIAS; | |
937 | return sp; | |
938 | } | |
939 | ||
940 | static CORE_ADDR | |
7d9b040b | 941 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
942 | struct regcache *regcache, CORE_ADDR bp_addr, |
943 | int nargs, struct value **args, CORE_ADDR sp, | |
944 | int struct_return, CORE_ADDR struct_addr) | |
945 | { | |
946 | /* Set return address. */ | |
947 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
948 | ||
949 | /* Set up function arguments. */ | |
950 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
951 | struct_return, struct_addr); | |
952 | ||
953 | /* Allocate the register save area. */ | |
954 | sp -= 16 * 8; | |
955 | ||
956 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 957 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
958 | |
959 | /* Finally, update the stack pointer. */ | |
960 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
961 | ||
5b2d44a0 | 962 | return sp + BIAS; |
8b39fe56 MK |
963 | } |
964 | \f | |
965 | ||
966 | /* Extract from an array REGBUF containing the (raw) register state, a | |
967 | function return value of TYPE, and copy that into VALBUF. */ | |
968 | ||
969 | static void | |
970 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 971 | gdb_byte *valbuf) |
8b39fe56 MK |
972 | { |
973 | int len = TYPE_LENGTH (type); | |
e1613aba | 974 | gdb_byte buf[32]; |
8b39fe56 MK |
975 | int i; |
976 | ||
977 | if (sparc64_structure_or_union_p (type)) | |
978 | { | |
979 | /* Structure or Union return values. */ | |
980 | gdb_assert (len <= 32); | |
981 | ||
982 | for (i = 0; i < ((len + 7) / 8); i++) | |
983 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
984 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
985 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
986 | memcpy (valbuf, buf, len); | |
987 | } | |
988 | else if (sparc64_floating_p (type)) | |
989 | { | |
990 | /* Floating return values. */ | |
991 | for (i = 0; i < len / 4; i++) | |
992 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
993 | memcpy (valbuf, buf, len); | |
994 | } | |
4bd87714 JB |
995 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
996 | { | |
997 | /* Small arrays are returned the same way as small structures. */ | |
998 | gdb_assert (len <= 32); | |
999 | ||
1000 | for (i = 0; i < ((len + 7) / 8); i++) | |
1001 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1002 | memcpy (valbuf, buf, len); | |
1003 | } | |
8b39fe56 MK |
1004 | else |
1005 | { | |
1006 | /* Integral and pointer return values. */ | |
1007 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1008 | ||
1009 | /* Just stripping off any unused bytes should preserve the | |
1010 | signed-ness just fine. */ | |
1011 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1012 | memcpy (valbuf, buf + 8 - len, len); | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | /* Write into the appropriate registers a function return value stored | |
1017 | in VALBUF of type TYPE. */ | |
1018 | ||
1019 | static void | |
1020 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1021 | const gdb_byte *valbuf) |
8b39fe56 MK |
1022 | { |
1023 | int len = TYPE_LENGTH (type); | |
e1613aba | 1024 | gdb_byte buf[16]; |
8b39fe56 MK |
1025 | int i; |
1026 | ||
1027 | if (sparc64_structure_or_union_p (type)) | |
1028 | { | |
1029 | /* Structure or Union return values. */ | |
1030 | gdb_assert (len <= 32); | |
1031 | ||
1032 | /* Simplify matters by storing the complete value (including | |
1033 | floating members) into %o0 and %o1. Floating members are | |
1034 | also store in the appropriate floating-point registers. */ | |
1035 | memset (buf, 0, sizeof (buf)); | |
1036 | memcpy (buf, valbuf, len); | |
1037 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1038 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1039 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1040 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1041 | } | |
1042 | else if (sparc64_floating_p (type)) | |
1043 | { | |
1044 | /* Floating return values. */ | |
1045 | memcpy (buf, valbuf, len); | |
1046 | for (i = 0; i < len / 4; i++) | |
1047 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1048 | } | |
4bd87714 JB |
1049 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1050 | { | |
1051 | /* Small arrays are returned the same way as small structures. */ | |
1052 | gdb_assert (len <= 32); | |
1053 | ||
1054 | memset (buf, 0, sizeof (buf)); | |
1055 | memcpy (buf, valbuf, len); | |
1056 | for (i = 0; i < ((len + 7) / 8); i++) | |
1057 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1058 | } | |
8b39fe56 MK |
1059 | else |
1060 | { | |
1061 | /* Integral and pointer return values. */ | |
1062 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1063 | ||
1064 | /* ??? Do we need to do any sign-extension here? */ | |
1065 | memset (buf, 0, 8); | |
1066 | memcpy (buf + 8 - len, valbuf, len); | |
1067 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1068 | } | |
1069 | } | |
1070 | ||
60af1db2 | 1071 | static enum return_value_convention |
c055b101 CV |
1072 | sparc64_return_value (struct gdbarch *gdbarch, struct type *func_type, |
1073 | struct type *type, struct regcache *regcache, | |
1074 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1075 | { |
60af1db2 MK |
1076 | if (TYPE_LENGTH (type) > 32) |
1077 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1078 | ||
1079 | if (readbuf) | |
1080 | sparc64_extract_return_value (type, regcache, readbuf); | |
1081 | if (writebuf) | |
1082 | sparc64_store_return_value (type, regcache, writebuf); | |
1083 | ||
1084 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1085 | } |
8b39fe56 | 1086 | \f |
8b39fe56 | 1087 | |
02a71ae8 MK |
1088 | static void |
1089 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1090 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1091 | struct frame_info *this_frame) |
02a71ae8 MK |
1092 | { |
1093 | switch (regnum) | |
1094 | { | |
1095 | case SPARC_G0_REGNUM: | |
1096 | /* Since %g0 is always zero, there is no point in saving it, and | |
1097 | people will be inclined omit it from the CFI. Make sure we | |
1098 | don't warn about that. */ | |
1099 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1100 | break; | |
1101 | case SPARC_SP_REGNUM: | |
1102 | reg->how = DWARF2_FRAME_REG_CFA; | |
1103 | break; | |
1104 | case SPARC64_PC_REGNUM: | |
1105 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1106 | reg->loc.offset = 8; | |
1107 | break; | |
1108 | case SPARC64_NPC_REGNUM: | |
1109 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1110 | reg->loc.offset = 12; | |
1111 | break; | |
1112 | } | |
1113 | } | |
1114 | ||
8b39fe56 | 1115 | void |
386c036b | 1116 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1117 | { |
386c036b | 1118 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1119 | |
386c036b MK |
1120 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1121 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
8b39fe56 | 1122 | |
386c036b | 1123 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1124 | set_gdbarch_long_bit (gdbarch, 64); |
1125 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1126 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 MK |
1127 | |
1128 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); | |
1129 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1130 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1131 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
1132 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); | |
1133 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1134 | ||
1135 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1136 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1137 | |
1138 | /* Call dummy code. */ | |
386c036b MK |
1139 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1140 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1141 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1142 | ||
60af1db2 | 1143 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1144 | set_gdbarch_stabs_argument_has_addr |
1145 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1146 | |
1147 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
1148 | ||
02a71ae8 MK |
1149 | /* Hook in the DWARF CFI frame unwinder. */ |
1150 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1151 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1152 | StackGhost issues have been resolved. */ | |
1153 | ||
236369e7 | 1154 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1155 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
386c036b MK |
1156 | } |
1157 | \f | |
8b39fe56 | 1158 | |
386c036b | 1159 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1160 | |
386c036b MK |
1161 | #define TSTATE_CWP 0x000000000000001fULL |
1162 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1163 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1164 | |
386c036b MK |
1165 | #define PSR_S 0x00000080 |
1166 | #define PSR_ICC 0x00f00000 | |
1167 | #define PSR_VERS 0x0f000000 | |
1168 | #define PSR_IMPL 0xf0000000 | |
1169 | #define PSR_V8PLUS 0xff000000 | |
1170 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1171 | |
3567a8ea | 1172 | void |
386c036b MK |
1173 | sparc64_supply_gregset (const struct sparc_gregset *gregset, |
1174 | struct regcache *regcache, | |
1175 | int regnum, const void *gregs) | |
8b39fe56 | 1176 | { |
e17a4113 UW |
1177 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1178 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1179 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
e1613aba | 1180 | const gdb_byte *regs = gregs; |
8b39fe56 MK |
1181 | int i; |
1182 | ||
386c036b | 1183 | if (sparc32) |
8b39fe56 | 1184 | { |
386c036b MK |
1185 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1186 | { | |
1187 | int offset = gregset->r_tstate_offset; | |
1188 | ULONGEST tstate, psr; | |
e1613aba | 1189 | gdb_byte buf[4]; |
386c036b | 1190 | |
e17a4113 | 1191 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1192 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1193 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1194 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1195 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1196 | } | |
1197 | ||
1198 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1199 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
1200 | regs + gregset->r_pc_offset + 4); | |
1201 | ||
1202 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1203 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
1204 | regs + gregset->r_npc_offset + 4); | |
8b39fe56 | 1205 | |
386c036b | 1206 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1207 | { |
386c036b MK |
1208 | int offset = gregset->r_y_offset + 8 - gregset->r_y_size; |
1209 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); | |
8b39fe56 MK |
1210 | } |
1211 | } | |
1212 | else | |
1213 | { | |
386c036b MK |
1214 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1215 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
1216 | regs + gregset->r_tstate_offset); | |
8b39fe56 | 1217 | |
386c036b MK |
1218 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1219 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
1220 | regs + gregset->r_pc_offset); | |
1221 | ||
1222 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1223 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
1224 | regs + gregset->r_npc_offset); | |
1225 | ||
1226 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1227 | { |
e1613aba | 1228 | gdb_byte buf[8]; |
386c036b MK |
1229 | |
1230 | memset (buf, 0, 8); | |
1231 | memcpy (buf + 8 - gregset->r_y_size, | |
1232 | regs + gregset->r_y_offset, gregset->r_y_size); | |
1233 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); | |
3567a8ea | 1234 | } |
8b39fe56 | 1235 | |
386c036b MK |
1236 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
1237 | && gregset->r_fprs_offset != -1) | |
1238 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, | |
1239 | regs + gregset->r_fprs_offset); | |
1240 | } | |
1241 | ||
1242 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
1243 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, NULL); | |
1244 | ||
1245 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1246 | { | |
1247 | int offset = gregset->r_g1_offset; | |
1248 | ||
1249 | if (sparc32) | |
1250 | offset += 4; | |
1251 | ||
1252 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1253 | { |
3567a8ea | 1254 | if (regnum == i || regnum == -1) |
386c036b MK |
1255 | regcache_raw_supply (regcache, i, regs + offset); |
1256 | offset += 8; | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1261 | { | |
1262 | /* Not all of the register set variants include Locals and | |
1263 | Inputs. For those that don't, we read them off the stack. */ | |
1264 | if (gregset->r_l0_offset == -1) | |
1265 | { | |
1266 | ULONGEST sp; | |
1267 | ||
1268 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1269 | sparc_supply_rwindow (regcache, sp, regnum); | |
1270 | } | |
1271 | else | |
1272 | { | |
1273 | int offset = gregset->r_l0_offset; | |
1274 | ||
1275 | if (sparc32) | |
1276 | offset += 4; | |
1277 | ||
1278 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1279 | { |
386c036b MK |
1280 | if (regnum == i || regnum == -1) |
1281 | regcache_raw_supply (regcache, i, regs + offset); | |
1282 | offset += 8; | |
3567a8ea | 1283 | } |
8b39fe56 MK |
1284 | } |
1285 | } | |
1286 | } | |
1287 | ||
1288 | void | |
386c036b MK |
1289 | sparc64_collect_gregset (const struct sparc_gregset *gregset, |
1290 | const struct regcache *regcache, | |
1291 | int regnum, void *gregs) | |
8b39fe56 | 1292 | { |
e17a4113 UW |
1293 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1294 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1295 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
e1613aba | 1296 | gdb_byte *regs = gregs; |
3567a8ea MK |
1297 | int i; |
1298 | ||
386c036b | 1299 | if (sparc32) |
8b39fe56 | 1300 | { |
386c036b MK |
1301 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1302 | { | |
1303 | int offset = gregset->r_tstate_offset; | |
1304 | ULONGEST tstate, psr; | |
e1613aba | 1305 | gdb_byte buf[8]; |
386c036b | 1306 | |
e17a4113 | 1307 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 1308 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 1309 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
1310 | tstate |= (psr & PSR_ICC) << 12; |
1311 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
1312 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 1313 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
1314 | memcpy (regs + offset, buf, 8); |
1315 | } | |
8b39fe56 | 1316 | |
386c036b MK |
1317 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
1318 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
1319 | regs + gregset->r_pc_offset + 4); | |
1320 | ||
1321 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1322 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
1323 | regs + gregset->r_npc_offset + 4); | |
1324 | ||
1325 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 1326 | { |
386c036b MK |
1327 | int offset = gregset->r_y_offset + 8 - gregset->r_y_size; |
1328 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); | |
8b39fe56 MK |
1329 | } |
1330 | } | |
1331 | else | |
1332 | { | |
386c036b MK |
1333 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1334 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
1335 | regs + gregset->r_tstate_offset); | |
1336 | ||
1337 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
1338 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
1339 | regs + gregset->r_pc_offset); | |
3567a8ea | 1340 | |
386c036b MK |
1341 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
1342 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
1343 | regs + gregset->r_npc_offset); | |
3567a8ea | 1344 | |
386c036b | 1345 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 1346 | { |
e1613aba | 1347 | gdb_byte buf[8]; |
386c036b MK |
1348 | |
1349 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
1350 | memcpy (regs + gregset->r_y_offset, | |
1351 | buf + 8 - gregset->r_y_size, gregset->r_y_size); | |
1352 | } | |
1353 | ||
1354 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
1355 | && gregset->r_fprs_offset != -1) | |
1356 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, | |
1357 | regs + gregset->r_fprs_offset); | |
1358 | ||
1359 | } | |
1360 | ||
1361 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1362 | { | |
1363 | int offset = gregset->r_g1_offset; | |
1364 | ||
1365 | if (sparc32) | |
1366 | offset += 4; | |
1367 | ||
1368 | /* %g0 is always zero. */ | |
1369 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
1370 | { | |
1371 | if (regnum == i || regnum == -1) | |
1372 | regcache_raw_collect (regcache, i, regs + offset); | |
1373 | offset += 8; | |
1374 | } | |
1375 | } | |
1376 | ||
1377 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1378 | { | |
1379 | /* Not all of the register set variants include Locals and | |
1380 | Inputs. For those that don't, we read them off the stack. */ | |
1381 | if (gregset->r_l0_offset != -1) | |
1382 | { | |
1383 | int offset = gregset->r_l0_offset; | |
1384 | ||
1385 | if (sparc32) | |
1386 | offset += 4; | |
1387 | ||
1388 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1389 | { |
386c036b MK |
1390 | if (regnum == i || regnum == -1) |
1391 | regcache_raw_collect (regcache, i, regs + offset); | |
1392 | offset += 8; | |
3567a8ea MK |
1393 | } |
1394 | } | |
8b39fe56 MK |
1395 | } |
1396 | } | |
8b39fe56 | 1397 | |
386c036b MK |
1398 | void |
1399 | sparc64_supply_fpregset (struct regcache *regcache, | |
1400 | int regnum, const void *fpregs) | |
1401 | { | |
e6d4f032 | 1402 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
e1613aba | 1403 | const gdb_byte *regs = fpregs; |
386c036b MK |
1404 | int i; |
1405 | ||
1406 | for (i = 0; i < 32; i++) | |
1407 | { | |
1408 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
1409 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); | |
1410 | } | |
1411 | ||
1412 | if (sparc32) | |
1413 | { | |
1414 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1415 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
1416 | regs + (32 * 4) + (16 * 8) + 4); | |
1417 | } | |
1418 | else | |
1419 | { | |
1420 | for (i = 0; i < 16; i++) | |
1421 | { | |
1422 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1423 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
1424 | regs + (32 * 4) + (i * 8)); | |
1425 | } | |
1426 | ||
1427 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1428 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
1429 | regs + (32 * 4) + (16 * 8)); | |
1430 | } | |
1431 | } | |
8b39fe56 MK |
1432 | |
1433 | void | |
386c036b MK |
1434 | sparc64_collect_fpregset (const struct regcache *regcache, |
1435 | int regnum, void *fpregs) | |
8b39fe56 | 1436 | { |
e6d4f032 | 1437 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
e1613aba | 1438 | gdb_byte *regs = fpregs; |
386c036b MK |
1439 | int i; |
1440 | ||
1441 | for (i = 0; i < 32; i++) | |
1442 | { | |
1443 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
1444 | regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, regs + (i * 4)); | |
1445 | } | |
1446 | ||
1447 | if (sparc32) | |
1448 | { | |
1449 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
1450 | regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, | |
1451 | regs + (32 * 4) + (16 * 8) + 4); | |
1452 | } | |
1453 | else | |
1454 | { | |
1455 | for (i = 0; i < 16; i++) | |
1456 | { | |
1457 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
1458 | regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, | |
1459 | regs + (32 * 4) + (i * 8)); | |
1460 | } | |
1461 | ||
1462 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
1463 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
1464 | regs + (32 * 4) + (16 * 8)); | |
1465 | } | |
8b39fe56 | 1466 | } |
fd936806 | 1467 |