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8b39fe56 MK |
1 | /* Target-dependent code for UltraSPARC. |
2 | ||
61baf725 | 3 | Copyright (C) 2003-2017 Free Software Foundation, Inc. |
8b39fe56 MK |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
8b39fe56 MK |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
8b39fe56 MK |
19 | |
20 | #include "defs.h" | |
21 | #include "arch-utils.h" | |
02a71ae8 | 22 | #include "dwarf2-frame.h" |
8b39fe56 MK |
23 | #include "frame.h" |
24 | #include "frame-base.h" | |
25 | #include "frame-unwind.h" | |
26 | #include "gdbcore.h" | |
27 | #include "gdbtypes.h" | |
386c036b MK |
28 | #include "inferior.h" |
29 | #include "symtab.h" | |
30 | #include "objfiles.h" | |
8b39fe56 MK |
31 | #include "osabi.h" |
32 | #include "regcache.h" | |
3f7b46f2 | 33 | #include "target-descriptions.h" |
8b39fe56 MK |
34 | #include "target.h" |
35 | #include "value.h" | |
36 | ||
8b39fe56 MK |
37 | #include "sparc64-tdep.h" |
38 | ||
b021a221 | 39 | /* This file implements the SPARC 64-bit ABI as defined by the |
8b39fe56 MK |
40 | section "Low-Level System Information" of the SPARC Compliance |
41 | Definition (SCD) 2.4.1, which is the 64-bit System V psABI for | |
42 | SPARC. */ | |
43 | ||
44 | /* Please use the sparc32_-prefix for 32-bit specific code, the | |
45 | sparc64_-prefix for 64-bit specific code and the sparc_-prefix for | |
46 | code can handle both. */ | |
8b39fe56 | 47 | \f |
58afddc6 WP |
48 | /* The M7 processor supports an Application Data Integrity (ADI) feature |
49 | that detects invalid data accesses. When software allocates memory and | |
50 | enables ADI on the allocated memory, it chooses a 4-bit version number, | |
51 | sets the version in the upper 4 bits of the 64-bit pointer to that data, | |
52 | and stores the 4-bit version in every cacheline of the object. Hardware | |
53 | saves the latter in spare bits in the cache and memory hierarchy. On each | |
54 | load and store, the processor compares the upper 4 VA (virtual address) bits | |
55 | to the cacheline's version. If there is a mismatch, the processor generates | |
56 | a version mismatch trap which can be either precise or disrupting. | |
57 | The trap is an error condition which the kernel delivers to the process | |
58 | as a SIGSEGV signal. | |
59 | ||
60 | The upper 4 bits of the VA represent a version and are not part of the | |
61 | true address. The processor clears these bits and sign extends bit 59 | |
62 | to generate the true address. | |
63 | ||
64 | Note that 32-bit applications cannot use ADI. */ | |
65 | ||
66 | ||
67 | #include <algorithm> | |
68 | #include "cli/cli-utils.h" | |
69 | #include "gdbcmd.h" | |
70 | #include "auxv.h" | |
71 | ||
72 | #define MAX_PROC_NAME_SIZE sizeof("/proc/99999/lwp/9999/adi/lstatus") | |
73 | ||
74 | /* ELF Auxiliary vectors */ | |
75 | #ifndef AT_ADI_BLKSZ | |
76 | #define AT_ADI_BLKSZ 34 | |
77 | #endif | |
78 | #ifndef AT_ADI_NBITS | |
79 | #define AT_ADI_NBITS 35 | |
80 | #endif | |
81 | #ifndef AT_ADI_UEONADI | |
82 | #define AT_ADI_UEONADI 36 | |
83 | #endif | |
84 | ||
85 | /* ADI command list. */ | |
86 | static struct cmd_list_element *sparc64adilist = NULL; | |
87 | ||
88 | /* ADI stat settings. */ | |
89 | typedef struct | |
90 | { | |
91 | /* The ADI block size. */ | |
92 | unsigned long blksize; | |
93 | ||
94 | /* Number of bits used for an ADI version tag which can be | |
654670a4 WP |
95 | used together with the shift value for an ADI version tag |
96 | to encode or extract the ADI version value in a pointer. */ | |
58afddc6 WP |
97 | unsigned long nbits; |
98 | ||
99 | /* The maximum ADI version tag value supported. */ | |
100 | int max_version; | |
101 | ||
102 | /* ADI version tag file. */ | |
103 | int tag_fd = 0; | |
104 | ||
105 | /* ADI availability check has been done. */ | |
106 | bool checked_avail = false; | |
107 | ||
108 | /* ADI is available. */ | |
109 | bool is_avail = false; | |
110 | ||
111 | } adi_stat_t; | |
112 | ||
113 | /* Per-process ADI stat info. */ | |
114 | ||
115 | typedef struct sparc64_adi_info | |
116 | { | |
117 | sparc64_adi_info (pid_t pid_) | |
118 | : pid (pid_) | |
119 | {} | |
120 | ||
121 | /* The process identifier. */ | |
122 | pid_t pid; | |
123 | ||
124 | /* The ADI stat. */ | |
125 | adi_stat_t stat = {}; | |
126 | ||
127 | } sparc64_adi_info; | |
128 | ||
129 | static std::forward_list<sparc64_adi_info> adi_proc_list; | |
130 | ||
131 | ||
132 | /* Get ADI info for process PID, creating one if it doesn't exist. */ | |
133 | ||
134 | static sparc64_adi_info * | |
135 | get_adi_info_proc (pid_t pid) | |
136 | { | |
137 | auto found = std::find_if (adi_proc_list.begin (), adi_proc_list.end (), | |
138 | [&pid] (const sparc64_adi_info &info) | |
139 | { | |
140 | return info.pid == pid; | |
141 | }); | |
142 | ||
143 | if (found == adi_proc_list.end ()) | |
144 | { | |
145 | adi_proc_list.emplace_front (pid); | |
146 | return &adi_proc_list.front (); | |
147 | } | |
148 | else | |
149 | { | |
150 | return &(*found); | |
151 | } | |
152 | } | |
153 | ||
154 | static adi_stat_t | |
155 | get_adi_info (pid_t pid) | |
156 | { | |
157 | sparc64_adi_info *proc; | |
158 | ||
159 | proc = get_adi_info_proc (pid); | |
160 | return proc->stat; | |
161 | } | |
162 | ||
163 | /* Is called when GDB is no longer debugging process PID. It | |
164 | deletes data structure that keeps track of the ADI stat. */ | |
165 | ||
166 | void | |
167 | sparc64_forget_process (pid_t pid) | |
168 | { | |
169 | int target_errno; | |
170 | ||
171 | for (auto pit = adi_proc_list.before_begin (), | |
172 | it = std::next (pit); | |
173 | it != adi_proc_list.end (); | |
174 | ) | |
175 | { | |
176 | if ((*it).pid == pid) | |
177 | { | |
178 | if ((*it).stat.tag_fd > 0) | |
179 | target_fileio_close ((*it).stat.tag_fd, &target_errno); | |
180 | adi_proc_list.erase_after (pit); | |
181 | break; | |
182 | } | |
183 | else | |
184 | pit = it++; | |
185 | } | |
186 | ||
187 | } | |
188 | ||
189 | static void | |
981a3fb3 | 190 | info_adi_command (const char *args, int from_tty) |
58afddc6 WP |
191 | { |
192 | printf_unfiltered ("\"adi\" must be followed by \"examine\" " | |
193 | "or \"assign\".\n"); | |
194 | help_list (sparc64adilist, "adi ", all_commands, gdb_stdout); | |
195 | } | |
196 | ||
197 | /* Read attributes of a maps entry in /proc/[pid]/adi/maps. */ | |
198 | ||
199 | static void | |
200 | read_maps_entry (const char *line, | |
201 | ULONGEST *addr, ULONGEST *endaddr) | |
202 | { | |
203 | const char *p = line; | |
204 | ||
205 | *addr = strtoulst (p, &p, 16); | |
206 | if (*p == '-') | |
207 | p++; | |
208 | ||
209 | *endaddr = strtoulst (p, &p, 16); | |
210 | } | |
211 | ||
212 | /* Check if ADI is available. */ | |
213 | ||
214 | static bool | |
215 | adi_available (void) | |
216 | { | |
217 | pid_t pid = ptid_get_pid (inferior_ptid); | |
218 | sparc64_adi_info *proc = get_adi_info_proc (pid); | |
654670a4 | 219 | CORE_ADDR value; |
58afddc6 WP |
220 | |
221 | if (proc->stat.checked_avail) | |
222 | return proc->stat.is_avail; | |
223 | ||
224 | proc->stat.checked_avail = true; | |
654670a4 | 225 | if (target_auxv_search (¤t_target, AT_ADI_BLKSZ, &value) <= 0) |
58afddc6 | 226 | return false; |
654670a4 WP |
227 | proc->stat.blksize = value; |
228 | target_auxv_search (¤t_target, AT_ADI_NBITS, &value); | |
229 | proc->stat.nbits = value; | |
58afddc6 WP |
230 | proc->stat.max_version = (1 << proc->stat.nbits) - 2; |
231 | proc->stat.is_avail = true; | |
232 | ||
233 | return proc->stat.is_avail; | |
234 | } | |
235 | ||
236 | /* Normalize a versioned address - a VA with ADI bits (63-60) set. */ | |
237 | ||
238 | static CORE_ADDR | |
239 | adi_normalize_address (CORE_ADDR addr) | |
240 | { | |
241 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
242 | ||
243 | if (ast.nbits) | |
654670a4 WP |
244 | { |
245 | /* Clear upper bits. */ | |
246 | addr &= ((uint64_t) -1) >> ast.nbits; | |
247 | ||
248 | /* Sign extend. */ | |
249 | CORE_ADDR signbit = (uint64_t) 1 << (64 - ast.nbits - 1); | |
250 | return (addr ^ signbit) - signbit; | |
251 | } | |
58afddc6 WP |
252 | return addr; |
253 | } | |
254 | ||
255 | /* Align a normalized address - a VA with bit 59 sign extended into | |
256 | ADI bits. */ | |
257 | ||
258 | static CORE_ADDR | |
259 | adi_align_address (CORE_ADDR naddr) | |
260 | { | |
261 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
262 | ||
263 | return (naddr - (naddr % ast.blksize)) / ast.blksize; | |
264 | } | |
265 | ||
266 | /* Convert a byte count to count at a ratio of 1:adi_blksz. */ | |
267 | ||
268 | static int | |
269 | adi_convert_byte_count (CORE_ADDR naddr, int nbytes, CORE_ADDR locl) | |
270 | { | |
271 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
272 | ||
273 | return ((naddr + nbytes + ast.blksize - 1) / ast.blksize) - locl; | |
274 | } | |
275 | ||
276 | /* The /proc/[pid]/adi/tags file, which allows gdb to get/set ADI | |
277 | version in a target process, maps linearly to the address space | |
278 | of the target process at a ratio of 1:adi_blksz. | |
279 | ||
280 | A read (or write) at offset K in the file returns (or modifies) | |
281 | the ADI version tag stored in the cacheline containing address | |
282 | K * adi_blksz, encoded as 1 version tag per byte. The allowed | |
283 | version tag values are between 0 and adi_stat.max_version. */ | |
284 | ||
285 | static int | |
286 | adi_tag_fd (void) | |
287 | { | |
288 | pid_t pid = ptid_get_pid (inferior_ptid); | |
289 | sparc64_adi_info *proc = get_adi_info_proc (pid); | |
290 | ||
291 | if (proc->stat.tag_fd != 0) | |
292 | return proc->stat.tag_fd; | |
293 | ||
294 | char cl_name[MAX_PROC_NAME_SIZE]; | |
39b06c20 | 295 | snprintf (cl_name, sizeof(cl_name), "/proc/%ld/adi/tags", (long) pid); |
58afddc6 WP |
296 | int target_errno; |
297 | proc->stat.tag_fd = target_fileio_open (NULL, cl_name, O_RDWR|O_EXCL, | |
298 | 0, &target_errno); | |
299 | return proc->stat.tag_fd; | |
300 | } | |
301 | ||
302 | /* Check if an address set is ADI enabled, using /proc/[pid]/adi/maps | |
303 | which was exported by the kernel and contains the currently ADI | |
304 | mapped memory regions and their access permissions. */ | |
305 | ||
306 | static bool | |
307 | adi_is_addr_mapped (CORE_ADDR vaddr, size_t cnt) | |
308 | { | |
309 | char filename[MAX_PROC_NAME_SIZE]; | |
310 | size_t i = 0; | |
311 | ||
312 | pid_t pid = ptid_get_pid (inferior_ptid); | |
39b06c20 | 313 | snprintf (filename, sizeof filename, "/proc/%ld/adi/maps", (long) pid); |
58afddc6 WP |
314 | char *data = target_fileio_read_stralloc (NULL, filename); |
315 | if (data) | |
316 | { | |
317 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
318 | adi_stat_t adi_stat = get_adi_info (pid); | |
319 | char *line; | |
320 | for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n")) | |
321 | { | |
322 | ULONGEST addr, endaddr; | |
323 | ||
324 | read_maps_entry (line, &addr, &endaddr); | |
325 | ||
326 | while (((vaddr + i) * adi_stat.blksize) >= addr | |
327 | && ((vaddr + i) * adi_stat.blksize) < endaddr) | |
328 | { | |
329 | if (++i == cnt) | |
330 | { | |
331 | do_cleanups (cleanup); | |
332 | return true; | |
333 | } | |
334 | } | |
335 | } | |
336 | do_cleanups (cleanup); | |
337 | } | |
338 | else | |
339 | warning (_("unable to open /proc file '%s'"), filename); | |
340 | ||
341 | return false; | |
342 | } | |
343 | ||
344 | /* Read ADI version tag value for memory locations starting at "VADDR" | |
345 | for "SIZE" number of bytes. */ | |
346 | ||
347 | static int | |
348 | adi_read_versions (CORE_ADDR vaddr, size_t size, unsigned char *tags) | |
349 | { | |
350 | int fd = adi_tag_fd (); | |
351 | if (fd == -1) | |
352 | return -1; | |
353 | ||
354 | if (!adi_is_addr_mapped (vaddr, size)) | |
355 | { | |
356 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
654670a4 WP |
357 | error(_("Address at %s is not in ADI maps"), |
358 | paddress (target_gdbarch (), vaddr * ast.blksize)); | |
58afddc6 WP |
359 | } |
360 | ||
361 | int target_errno; | |
362 | return target_fileio_pread (fd, tags, size, vaddr, &target_errno); | |
363 | } | |
364 | ||
365 | /* Write ADI version tag for memory locations starting at "VADDR" for | |
366 | "SIZE" number of bytes to "TAGS". */ | |
367 | ||
368 | static int | |
369 | adi_write_versions (CORE_ADDR vaddr, size_t size, unsigned char *tags) | |
370 | { | |
371 | int fd = adi_tag_fd (); | |
372 | if (fd == -1) | |
373 | return -1; | |
374 | ||
375 | if (!adi_is_addr_mapped (vaddr, size)) | |
376 | { | |
377 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
654670a4 WP |
378 | error(_("Address at %s is not in ADI maps"), |
379 | paddress (target_gdbarch (), vaddr * ast.blksize)); | |
58afddc6 WP |
380 | } |
381 | ||
382 | int target_errno; | |
383 | return target_fileio_pwrite (fd, tags, size, vaddr, &target_errno); | |
384 | } | |
385 | ||
386 | /* Print ADI version tag value in "TAGS" for memory locations starting | |
387 | at "VADDR" with number of "CNT". */ | |
388 | ||
389 | static void | |
390 | adi_print_versions (CORE_ADDR vaddr, size_t cnt, unsigned char *tags) | |
391 | { | |
392 | int v_idx = 0; | |
393 | const int maxelts = 8; /* # of elements per line */ | |
394 | ||
395 | adi_stat_t adi_stat = get_adi_info (ptid_get_pid (inferior_ptid)); | |
396 | ||
397 | while (cnt > 0) | |
398 | { | |
399 | QUIT; | |
654670a4 WP |
400 | printf_filtered ("%s:\t", |
401 | paddress (target_gdbarch (), vaddr * adi_stat.blksize)); | |
58afddc6 WP |
402 | for (int i = maxelts; i > 0 && cnt > 0; i--, cnt--) |
403 | { | |
404 | if (tags[v_idx] == 0xff) /* no version tag */ | |
405 | printf_filtered ("-"); | |
406 | else | |
407 | printf_filtered ("%1X", tags[v_idx]); | |
408 | if (cnt > 1) | |
409 | printf_filtered (" "); | |
410 | ++v_idx; | |
411 | } | |
412 | printf_filtered ("\n"); | |
413 | gdb_flush (gdb_stdout); | |
414 | vaddr += maxelts; | |
415 | } | |
416 | } | |
417 | ||
418 | static void | |
419 | do_examine (CORE_ADDR start, int bcnt) | |
420 | { | |
421 | CORE_ADDR vaddr = adi_normalize_address (start); | |
422 | struct cleanup *cleanup; | |
423 | ||
424 | CORE_ADDR vstart = adi_align_address (vaddr); | |
425 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
426 | unsigned char *buf = (unsigned char *) xmalloc (cnt); | |
427 | cleanup = make_cleanup (xfree, buf); | |
428 | int read_cnt = adi_read_versions (vstart, cnt, buf); | |
429 | if (read_cnt == -1) | |
430 | error (_("No ADI information")); | |
431 | else if (read_cnt < cnt) | |
654670a4 | 432 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 WP |
433 | |
434 | adi_print_versions (vstart, cnt, buf); | |
435 | ||
436 | do_cleanups (cleanup); | |
437 | } | |
438 | ||
439 | static void | |
440 | do_assign (CORE_ADDR start, size_t bcnt, int version) | |
441 | { | |
442 | CORE_ADDR vaddr = adi_normalize_address (start); | |
443 | ||
444 | CORE_ADDR vstart = adi_align_address (vaddr); | |
445 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
446 | std::vector<unsigned char> buf (cnt, version); | |
447 | int set_cnt = adi_write_versions (vstart, cnt, buf.data ()); | |
448 | ||
449 | if (set_cnt == -1) | |
450 | error (_("No ADI information")); | |
451 | else if (set_cnt < cnt) | |
654670a4 | 452 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 WP |
453 | |
454 | } | |
455 | ||
456 | /* ADI examine version tag command. | |
457 | ||
458 | Command syntax: | |
459 | ||
460 | adi (examine|x)/count <addr> */ | |
461 | ||
462 | static void | |
463 | adi_examine_command (char *args, int from_tty) | |
464 | { | |
465 | /* make sure program is active and adi is available */ | |
466 | if (!target_has_execution) | |
467 | error (_("ADI command requires a live process/thread")); | |
468 | ||
469 | if (!adi_available ()) | |
470 | error (_("No ADI information")); | |
471 | ||
472 | pid_t pid = ptid_get_pid (inferior_ptid); | |
473 | sparc64_adi_info *proc = get_adi_info_proc (pid); | |
474 | int cnt = 1; | |
475 | char *p = args; | |
476 | if (p && *p == '/') | |
477 | { | |
478 | p++; | |
479 | cnt = get_number (&p); | |
480 | } | |
481 | ||
482 | CORE_ADDR next_address = 0; | |
483 | if (p != 0 && *p != 0) | |
484 | next_address = parse_and_eval_address (p); | |
485 | if (!cnt || !next_address) | |
486 | error (_("Usage: adi examine|x[/count] <addr>")); | |
487 | ||
488 | do_examine (next_address, cnt); | |
489 | } | |
490 | ||
491 | /* ADI assign version tag command. | |
492 | ||
493 | Command syntax: | |
494 | ||
495 | adi (assign|a)/count <addr> = <version> */ | |
496 | ||
497 | static void | |
498 | adi_assign_command (char *args, int from_tty) | |
499 | { | |
500 | /* make sure program is active and adi is available */ | |
501 | if (!target_has_execution) | |
502 | error (_("ADI command requires a live process/thread")); | |
503 | ||
504 | if (!adi_available ()) | |
505 | error (_("No ADI information")); | |
506 | ||
507 | char *exp = args; | |
508 | if (exp == 0) | |
509 | error_no_arg (_("Usage: adi assign|a[/count] <addr> = <version>")); | |
510 | ||
511 | char *q = (char *) strchr (exp, '='); | |
512 | if (q) | |
513 | *q++ = 0; | |
514 | else | |
515 | error (_("Usage: adi assign|a[/count] <addr> = <version>")); | |
516 | ||
517 | size_t cnt = 1; | |
518 | char *p = args; | |
519 | if (exp && *exp == '/') | |
520 | { | |
521 | p = exp + 1; | |
522 | cnt = get_number (&p); | |
523 | } | |
524 | ||
525 | CORE_ADDR next_address = 0; | |
526 | if (p != 0 && *p != 0) | |
527 | next_address = parse_and_eval_address (p); | |
528 | else | |
529 | error (_("Usage: adi assign|a[/count] <addr> = <version>")); | |
530 | ||
531 | int version = 0; | |
532 | if (q != NULL) /* parse version tag */ | |
533 | { | |
534 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
535 | version = parse_and_eval_long (q); | |
536 | if (version < 0 || version > ast.max_version) | |
537 | error (_("Invalid ADI version tag %d"), version); | |
538 | } | |
539 | ||
540 | do_assign (next_address, cnt, version); | |
541 | } | |
542 | ||
543 | void | |
544 | _initialize_sparc64_adi_tdep (void) | |
545 | { | |
546 | ||
547 | add_prefix_cmd ("adi", class_support, info_adi_command, | |
548 | _("ADI version related commands."), | |
549 | &sparc64adilist, "adi ", 0, &cmdlist); | |
550 | add_cmd ("examine", class_support, adi_examine_command, | |
551 | _("Examine ADI versions."), &sparc64adilist); | |
552 | add_alias_cmd ("x", "examine", no_class, 1, &sparc64adilist); | |
553 | add_cmd ("assign", class_support, adi_assign_command, | |
554 | _("Assign ADI versions."), &sparc64adilist); | |
555 | ||
556 | } | |
557 | \f | |
558 | ||
8b39fe56 MK |
559 | /* The functions on this page are intended to be used to classify |
560 | function arguments. */ | |
561 | ||
8b39fe56 MK |
562 | /* Check whether TYPE is "Integral or Pointer". */ |
563 | ||
564 | static int | |
565 | sparc64_integral_or_pointer_p (const struct type *type) | |
566 | { | |
567 | switch (TYPE_CODE (type)) | |
568 | { | |
569 | case TYPE_CODE_INT: | |
570 | case TYPE_CODE_BOOL: | |
571 | case TYPE_CODE_CHAR: | |
572 | case TYPE_CODE_ENUM: | |
573 | case TYPE_CODE_RANGE: | |
574 | { | |
575 | int len = TYPE_LENGTH (type); | |
576 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); | |
577 | } | |
578 | return 1; | |
579 | case TYPE_CODE_PTR: | |
580 | case TYPE_CODE_REF: | |
aa006118 | 581 | case TYPE_CODE_RVALUE_REF: |
8b39fe56 MK |
582 | { |
583 | int len = TYPE_LENGTH (type); | |
584 | gdb_assert (len == 8); | |
585 | } | |
586 | return 1; | |
587 | default: | |
588 | break; | |
589 | } | |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
594 | /* Check whether TYPE is "Floating". */ | |
595 | ||
596 | static int | |
597 | sparc64_floating_p (const struct type *type) | |
598 | { | |
599 | switch (TYPE_CODE (type)) | |
600 | { | |
601 | case TYPE_CODE_FLT: | |
602 | { | |
603 | int len = TYPE_LENGTH (type); | |
604 | gdb_assert (len == 4 || len == 8 || len == 16); | |
605 | } | |
606 | return 1; | |
607 | default: | |
608 | break; | |
609 | } | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
fe10a582 DM |
614 | /* Check whether TYPE is "Complex Floating". */ |
615 | ||
616 | static int | |
617 | sparc64_complex_floating_p (const struct type *type) | |
618 | { | |
619 | switch (TYPE_CODE (type)) | |
620 | { | |
621 | case TYPE_CODE_COMPLEX: | |
622 | { | |
623 | int len = TYPE_LENGTH (type); | |
624 | gdb_assert (len == 8 || len == 16 || len == 32); | |
625 | } | |
626 | return 1; | |
627 | default: | |
628 | break; | |
629 | } | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
0497f5b0 JB |
634 | /* Check whether TYPE is "Structure or Union". |
635 | ||
636 | In terms of Ada subprogram calls, arrays are treated the same as | |
637 | struct and union types. So this function also returns non-zero | |
638 | for array types. */ | |
8b39fe56 MK |
639 | |
640 | static int | |
641 | sparc64_structure_or_union_p (const struct type *type) | |
642 | { | |
643 | switch (TYPE_CODE (type)) | |
644 | { | |
645 | case TYPE_CODE_STRUCT: | |
646 | case TYPE_CODE_UNION: | |
0497f5b0 | 647 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
648 | return 1; |
649 | default: | |
650 | break; | |
651 | } | |
652 | ||
653 | return 0; | |
654 | } | |
fd936806 MK |
655 | \f |
656 | ||
209bd28e | 657 | /* Construct types for ISA-specific registers. */ |
fd936806 | 658 | |
209bd28e UW |
659 | static struct type * |
660 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
661 | { | |
662 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
fd936806 | 663 | |
209bd28e UW |
664 | if (!tdep->sparc64_pstate_type) |
665 | { | |
666 | struct type *type; | |
667 | ||
77b7c781 | 668 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 64); |
209bd28e UW |
669 | append_flags_type_flag (type, 0, "AG"); |
670 | append_flags_type_flag (type, 1, "IE"); | |
671 | append_flags_type_flag (type, 2, "PRIV"); | |
672 | append_flags_type_flag (type, 3, "AM"); | |
673 | append_flags_type_flag (type, 4, "PEF"); | |
674 | append_flags_type_flag (type, 5, "RED"); | |
675 | append_flags_type_flag (type, 8, "TLE"); | |
676 | append_flags_type_flag (type, 9, "CLE"); | |
677 | append_flags_type_flag (type, 10, "PID0"); | |
678 | append_flags_type_flag (type, 11, "PID1"); | |
679 | ||
680 | tdep->sparc64_pstate_type = type; | |
681 | } | |
fd936806 | 682 | |
209bd28e UW |
683 | return tdep->sparc64_pstate_type; |
684 | } | |
fd936806 | 685 | |
5badf10a IR |
686 | static struct type * |
687 | sparc64_ccr_type (struct gdbarch *gdbarch) | |
688 | { | |
689 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
690 | ||
691 | if (tdep->sparc64_ccr_type == NULL) | |
692 | { | |
693 | struct type *type; | |
694 | ||
77b7c781 | 695 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_ccr", 64); |
5badf10a IR |
696 | append_flags_type_flag (type, 0, "icc.c"); |
697 | append_flags_type_flag (type, 1, "icc.v"); | |
698 | append_flags_type_flag (type, 2, "icc.z"); | |
699 | append_flags_type_flag (type, 3, "icc.n"); | |
700 | append_flags_type_flag (type, 4, "xcc.c"); | |
701 | append_flags_type_flag (type, 5, "xcc.v"); | |
702 | append_flags_type_flag (type, 6, "xcc.z"); | |
703 | append_flags_type_flag (type, 7, "xcc.n"); | |
704 | ||
705 | tdep->sparc64_ccr_type = type; | |
706 | } | |
707 | ||
708 | return tdep->sparc64_ccr_type; | |
709 | } | |
710 | ||
209bd28e UW |
711 | static struct type * |
712 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
713 | { | |
714 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
715 | ||
716 | if (!tdep->sparc64_fsr_type) | |
717 | { | |
718 | struct type *type; | |
719 | ||
77b7c781 | 720 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 64); |
5badf10a IR |
721 | append_flags_type_flag (type, 0, "NXC"); |
722 | append_flags_type_flag (type, 1, "DZC"); | |
723 | append_flags_type_flag (type, 2, "UFC"); | |
724 | append_flags_type_flag (type, 3, "OFC"); | |
725 | append_flags_type_flag (type, 4, "NVC"); | |
726 | append_flags_type_flag (type, 5, "NXA"); | |
727 | append_flags_type_flag (type, 6, "DZA"); | |
728 | append_flags_type_flag (type, 7, "UFA"); | |
729 | append_flags_type_flag (type, 8, "OFA"); | |
730 | append_flags_type_flag (type, 9, "NVA"); | |
209bd28e UW |
731 | append_flags_type_flag (type, 22, "NS"); |
732 | append_flags_type_flag (type, 23, "NXM"); | |
733 | append_flags_type_flag (type, 24, "DZM"); | |
734 | append_flags_type_flag (type, 25, "UFM"); | |
735 | append_flags_type_flag (type, 26, "OFM"); | |
736 | append_flags_type_flag (type, 27, "NVM"); | |
737 | ||
738 | tdep->sparc64_fsr_type = type; | |
739 | } | |
740 | ||
741 | return tdep->sparc64_fsr_type; | |
742 | } | |
743 | ||
744 | static struct type * | |
745 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 746 | { |
209bd28e UW |
747 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
748 | ||
749 | if (!tdep->sparc64_fprs_type) | |
750 | { | |
751 | struct type *type; | |
752 | ||
77b7c781 | 753 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 64); |
209bd28e UW |
754 | append_flags_type_flag (type, 0, "DL"); |
755 | append_flags_type_flag (type, 1, "DU"); | |
756 | append_flags_type_flag (type, 2, "FEF"); | |
757 | ||
758 | tdep->sparc64_fprs_type = type; | |
759 | } | |
760 | ||
761 | return tdep->sparc64_fprs_type; | |
fd936806 | 762 | } |
8b39fe56 | 763 | |
209bd28e | 764 | |
8b39fe56 | 765 | /* Register information. */ |
7a36499a IR |
766 | #define SPARC64_FPU_REGISTERS \ |
767 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
768 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
769 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
770 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
771 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \ | |
772 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62" | |
773 | #define SPARC64_CP0_REGISTERS \ | |
774 | "pc", "npc", \ | |
775 | /* FIXME: Give "state" a name until we start using register groups. */ \ | |
776 | "state", \ | |
777 | "fsr", \ | |
778 | "fprs", \ | |
779 | "y" | |
8b39fe56 | 780 | |
3f7b46f2 IR |
781 | static const char *sparc64_fpu_register_names[] = { SPARC64_FPU_REGISTERS }; |
782 | static const char *sparc64_cp0_register_names[] = { SPARC64_CP0_REGISTERS }; | |
783 | ||
6707b003 | 784 | static const char *sparc64_register_names[] = |
8b39fe56 | 785 | { |
7a36499a IR |
786 | SPARC_CORE_REGISTERS, |
787 | SPARC64_FPU_REGISTERS, | |
788 | SPARC64_CP0_REGISTERS | |
8b39fe56 MK |
789 | }; |
790 | ||
791 | /* Total number of registers. */ | |
6707b003 | 792 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
793 | |
794 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
795 | registers as "psuedo" registers. */ | |
796 | ||
6707b003 | 797 | static const char *sparc64_pseudo_register_names[] = |
8b39fe56 | 798 | { |
6707b003 UW |
799 | "cwp", "pstate", "asi", "ccr", |
800 | ||
801 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
802 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
803 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
804 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
805 | ||
806 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
807 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
808 | }; |
809 | ||
810 | /* Total number of pseudo registers. */ | |
6707b003 | 811 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 | 812 | |
7a36499a IR |
813 | /* Return the name of pseudo register REGNUM. */ |
814 | ||
815 | static const char * | |
816 | sparc64_pseudo_register_name (struct gdbarch *gdbarch, int regnum) | |
817 | { | |
818 | regnum -= gdbarch_num_regs (gdbarch); | |
819 | ||
820 | if (regnum < SPARC64_NUM_PSEUDO_REGS) | |
821 | return sparc64_pseudo_register_names[regnum]; | |
822 | ||
823 | internal_error (__FILE__, __LINE__, | |
824 | _("sparc64_pseudo_register_name: bad register number %d"), | |
825 | regnum); | |
826 | } | |
827 | ||
8b39fe56 MK |
828 | /* Return the name of register REGNUM. */ |
829 | ||
830 | static const char * | |
d93859e2 | 831 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 | 832 | { |
3f7b46f2 IR |
833 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
834 | return tdesc_register_name (gdbarch, regnum); | |
835 | ||
7a36499a | 836 | if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) |
6707b003 | 837 | return sparc64_register_names[regnum]; |
8b39fe56 | 838 | |
7a36499a IR |
839 | return sparc64_pseudo_register_name (gdbarch, regnum); |
840 | } | |
841 | ||
842 | /* Return the GDB type object for the "standard" data type of data in | |
843 | pseudo register REGNUM. */ | |
844 | ||
845 | static struct type * | |
846 | sparc64_pseudo_register_type (struct gdbarch *gdbarch, int regnum) | |
847 | { | |
848 | regnum -= gdbarch_num_regs (gdbarch); | |
849 | ||
850 | if (regnum == SPARC64_CWP_REGNUM) | |
851 | return builtin_type (gdbarch)->builtin_int64; | |
852 | if (regnum == SPARC64_PSTATE_REGNUM) | |
853 | return sparc64_pstate_type (gdbarch); | |
854 | if (regnum == SPARC64_ASI_REGNUM) | |
855 | return builtin_type (gdbarch)->builtin_int64; | |
856 | if (regnum == SPARC64_CCR_REGNUM) | |
5badf10a | 857 | return sparc64_ccr_type (gdbarch); |
7a36499a IR |
858 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) |
859 | return builtin_type (gdbarch)->builtin_double; | |
860 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
861 | return builtin_type (gdbarch)->builtin_long_double; | |
8b39fe56 | 862 | |
7a36499a IR |
863 | internal_error (__FILE__, __LINE__, |
864 | _("sparc64_pseudo_register_type: bad register number %d"), | |
865 | regnum); | |
8b39fe56 MK |
866 | } |
867 | ||
868 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 869 | register REGNUM. */ |
8b39fe56 MK |
870 | |
871 | static struct type * | |
872 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
873 | { | |
3f7b46f2 IR |
874 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
875 | return tdesc_register_type (gdbarch, regnum); | |
876 | ||
6707b003 | 877 | /* Raw registers. */ |
6707b003 | 878 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) |
0dfff4cb | 879 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 880 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 881 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 882 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 883 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 884 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 885 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 886 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 887 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
888 | /* This raw register contains the contents of %cwp, %pstate, %asi |
889 | and %ccr as laid out in a %tstate register. */ | |
890 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 891 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 892 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 893 | return sparc64_fsr_type (gdbarch); |
6707b003 | 894 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 895 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
896 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
897 | reserved and always read as 0." */ | |
898 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 899 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
900 | |
901 | /* Pseudo registers. */ | |
7a36499a IR |
902 | if (regnum >= gdbarch_num_regs (gdbarch)) |
903 | return sparc64_pseudo_register_type (gdbarch, regnum); | |
6707b003 UW |
904 | |
905 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
906 | } |
907 | ||
05d1431c | 908 | static enum register_status |
8b39fe56 MK |
909 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
910 | struct regcache *regcache, | |
e1613aba | 911 | int regnum, gdb_byte *buf) |
8b39fe56 | 912 | { |
e17a4113 | 913 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
914 | enum register_status status; |
915 | ||
7a36499a | 916 | regnum -= gdbarch_num_regs (gdbarch); |
8b39fe56 MK |
917 | |
918 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
919 | { | |
920 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
05d1431c PA |
921 | status = regcache_raw_read (regcache, regnum, buf); |
922 | if (status == REG_VALID) | |
923 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
924 | return status; | |
8b39fe56 MK |
925 | } |
926 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
927 | { | |
928 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
05d1431c | 929 | return regcache_raw_read (regcache, regnum, buf); |
8b39fe56 MK |
930 | } |
931 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
932 | { | |
933 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c PA |
934 | |
935 | status = regcache_raw_read (regcache, regnum, buf); | |
936 | if (status == REG_VALID) | |
937 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
938 | if (status == REG_VALID) | |
939 | status = regcache_raw_read (regcache, regnum + 2, buf + 8); | |
940 | if (status == REG_VALID) | |
941 | status = regcache_raw_read (regcache, regnum + 3, buf + 12); | |
942 | ||
943 | return status; | |
8b39fe56 MK |
944 | } |
945 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
946 | { | |
947 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c PA |
948 | |
949 | status = regcache_raw_read (regcache, regnum, buf); | |
950 | if (status == REG_VALID) | |
951 | status = regcache_raw_read (regcache, regnum + 1, buf + 8); | |
952 | ||
953 | return status; | |
8b39fe56 MK |
954 | } |
955 | else if (regnum == SPARC64_CWP_REGNUM | |
956 | || regnum == SPARC64_PSTATE_REGNUM | |
957 | || regnum == SPARC64_ASI_REGNUM | |
958 | || regnum == SPARC64_CCR_REGNUM) | |
959 | { | |
960 | ULONGEST state; | |
961 | ||
05d1431c PA |
962 | status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); |
963 | if (status != REG_VALID) | |
964 | return status; | |
965 | ||
8b39fe56 MK |
966 | switch (regnum) |
967 | { | |
3567a8ea | 968 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
969 | state = (state >> 0) & ((1 << 5) - 1); |
970 | break; | |
3567a8ea | 971 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
972 | state = (state >> 8) & ((1 << 12) - 1); |
973 | break; | |
3567a8ea | 974 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
975 | state = (state >> 24) & ((1 << 8) - 1); |
976 | break; | |
3567a8ea | 977 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
978 | state = (state >> 32) & ((1 << 8) - 1); |
979 | break; | |
980 | } | |
e17a4113 | 981 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 982 | } |
05d1431c PA |
983 | |
984 | return REG_VALID; | |
8b39fe56 MK |
985 | } |
986 | ||
987 | static void | |
988 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
989 | struct regcache *regcache, | |
e1613aba | 990 | int regnum, const gdb_byte *buf) |
8b39fe56 | 991 | { |
e17a4113 | 992 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
7a36499a IR |
993 | |
994 | regnum -= gdbarch_num_regs (gdbarch); | |
8b39fe56 MK |
995 | |
996 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
997 | { | |
998 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
999 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 1000 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
1001 | } |
1002 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
1003 | { | |
1004 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
1005 | regcache_raw_write (regcache, regnum, buf); | |
1006 | } | |
1007 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
1008 | { | |
1009 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
1010 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
1011 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
1012 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
1013 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
1014 | } |
1015 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
1016 | { | |
1017 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
1018 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 1019 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 1020 | } |
3567a8ea MK |
1021 | else if (regnum == SPARC64_CWP_REGNUM |
1022 | || regnum == SPARC64_PSTATE_REGNUM | |
1023 | || regnum == SPARC64_ASI_REGNUM | |
1024 | || regnum == SPARC64_CCR_REGNUM) | |
1025 | { | |
1026 | ULONGEST state, bits; | |
1027 | ||
1028 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 1029 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
1030 | switch (regnum) |
1031 | { | |
1032 | case SPARC64_CWP_REGNUM: | |
1033 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
1034 | break; | |
1035 | case SPARC64_PSTATE_REGNUM: | |
1036 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
1037 | break; | |
1038 | case SPARC64_ASI_REGNUM: | |
1039 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
1040 | break; | |
1041 | case SPARC64_CCR_REGNUM: | |
1042 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
1043 | break; | |
1044 | } | |
1045 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
1046 | } | |
8b39fe56 | 1047 | } |
8b39fe56 MK |
1048 | \f |
1049 | ||
8b39fe56 MK |
1050 | /* Return PC of first real instruction of the function starting at |
1051 | START_PC. */ | |
1052 | ||
1053 | static CORE_ADDR | |
6093d2eb | 1054 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
1055 | { |
1056 | struct symtab_and_line sal; | |
1057 | CORE_ADDR func_start, func_end; | |
386c036b | 1058 | struct sparc_frame_cache cache; |
8b39fe56 MK |
1059 | |
1060 | /* This is the preferred method, find the end of the prologue by | |
1061 | using the debugging information. */ | |
1062 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
1063 | { | |
1064 | sal = find_pc_line (func_start, 0); | |
1065 | ||
1066 | if (sal.end < func_end | |
1067 | && start_pc <= sal.end) | |
1068 | return sal.end; | |
1069 | } | |
1070 | ||
be8626e0 MD |
1071 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
1072 | &cache); | |
8b39fe56 MK |
1073 | } |
1074 | ||
1075 | /* Normal frames. */ | |
1076 | ||
386c036b | 1077 | static struct sparc_frame_cache * |
236369e7 | 1078 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 1079 | { |
236369e7 | 1080 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1081 | } |
1082 | ||
1083 | static void | |
236369e7 | 1084 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
1085 | struct frame_id *this_id) |
1086 | { | |
386c036b | 1087 | struct sparc_frame_cache *cache = |
236369e7 | 1088 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1089 | |
1090 | /* This marks the outermost frame. */ | |
1091 | if (cache->base == 0) | |
1092 | return; | |
1093 | ||
1094 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
1095 | } | |
1096 | ||
236369e7 JB |
1097 | static struct value * |
1098 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
1099 | int regnum) | |
8b39fe56 | 1100 | { |
e17a4113 | 1101 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 1102 | struct sparc_frame_cache *cache = |
236369e7 | 1103 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1104 | |
1105 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
1106 | { | |
236369e7 | 1107 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 1108 | |
369c397b JB |
1109 | regnum = |
1110 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
1111 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
1112 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
1113 | } |
1114 | ||
f700a364 MK |
1115 | /* Handle StackGhost. */ |
1116 | { | |
e17a4113 | 1117 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
1118 | |
1119 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
1120 | { | |
236369e7 JB |
1121 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
1122 | ULONGEST i7; | |
1123 | ||
1124 | /* Read the value in from memory. */ | |
1125 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
1126 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
1127 | } |
1128 | } | |
1129 | ||
369c397b | 1130 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 1131 | in the register save area. */ |
369c397b JB |
1132 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
1133 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 1134 | { |
236369e7 | 1135 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 1136 | |
236369e7 | 1137 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
1138 | } |
1139 | ||
369c397b JB |
1140 | /* The previous frame's `out' registers may be accessible as the current |
1141 | frame's `in' registers. */ | |
1142 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
1143 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
1144 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
1145 | ||
236369e7 | 1146 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
1147 | } |
1148 | ||
1149 | static const struct frame_unwind sparc64_frame_unwind = | |
1150 | { | |
1151 | NORMAL_FRAME, | |
8fbca658 | 1152 | default_frame_unwind_stop_reason, |
8b39fe56 | 1153 | sparc64_frame_this_id, |
236369e7 JB |
1154 | sparc64_frame_prev_register, |
1155 | NULL, | |
1156 | default_frame_sniffer | |
8b39fe56 | 1157 | }; |
8b39fe56 MK |
1158 | \f |
1159 | ||
1160 | static CORE_ADDR | |
236369e7 | 1161 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 1162 | { |
386c036b | 1163 | struct sparc_frame_cache *cache = |
236369e7 | 1164 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 1165 | |
5b2d44a0 | 1166 | return cache->base; |
8b39fe56 MK |
1167 | } |
1168 | ||
1169 | static const struct frame_base sparc64_frame_base = | |
1170 | { | |
1171 | &sparc64_frame_unwind, | |
1172 | sparc64_frame_base_address, | |
1173 | sparc64_frame_base_address, | |
1174 | sparc64_frame_base_address | |
1175 | }; | |
8b39fe56 MK |
1176 | \f |
1177 | /* Check whether TYPE must be 16-byte aligned. */ | |
1178 | ||
1179 | static int | |
1180 | sparc64_16_byte_align_p (struct type *type) | |
1181 | { | |
1933fd8e VM |
1182 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1183 | { | |
1184 | struct type *t = check_typedef (TYPE_TARGET_TYPE (type)); | |
1185 | ||
1186 | if (sparc64_floating_p (t)) | |
1187 | return 1; | |
1188 | } | |
8b39fe56 MK |
1189 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) |
1190 | return 1; | |
1191 | ||
1192 | if (sparc64_structure_or_union_p (type)) | |
1193 | { | |
1194 | int i; | |
1195 | ||
1196 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
1197 | { |
1198 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
1199 | ||
1200 | if (sparc64_16_byte_align_p (subtype)) | |
1201 | return 1; | |
1202 | } | |
8b39fe56 MK |
1203 | } |
1204 | ||
1205 | return 0; | |
1206 | } | |
1207 | ||
1208 | /* Store floating fields of element ELEMENT of an "parameter array" | |
1209 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
1210 | apropriate registers of REGCACHE. This function can be called | |
1211 | recursively and therefore handles floating types in addition to | |
1212 | structures. */ | |
1213 | ||
1214 | static void | |
1215 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1216 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 | 1217 | { |
7a36499a | 1218 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
fe10a582 DM |
1219 | int len = TYPE_LENGTH (type); |
1220 | ||
8b39fe56 MK |
1221 | gdb_assert (element < 16); |
1222 | ||
1933fd8e VM |
1223 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1224 | { | |
1225 | gdb_byte buf[8]; | |
1226 | int regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
1227 | ||
1228 | valbuf += bitpos / 8; | |
1229 | if (len < 8) | |
1230 | { | |
1231 | memset (buf, 0, 8 - len); | |
1232 | memcpy (buf + 8 - len, valbuf, len); | |
1233 | valbuf = buf; | |
1234 | len = 8; | |
1235 | } | |
1236 | for (int n = 0; n < (len + 3) / 4; n++) | |
1237 | regcache_cooked_write (regcache, regnum + n, valbuf + n * 4); | |
1238 | } | |
1239 | else if (sparc64_floating_p (type) | |
fe10a582 | 1240 | || (sparc64_complex_floating_p (type) && len <= 16)) |
8b39fe56 | 1241 | { |
8b39fe56 MK |
1242 | int regnum; |
1243 | ||
1244 | if (len == 16) | |
1245 | { | |
1246 | gdb_assert (bitpos == 0); | |
1247 | gdb_assert ((element % 2) == 0); | |
1248 | ||
7a36499a | 1249 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM + element / 2; |
8b39fe56 MK |
1250 | regcache_cooked_write (regcache, regnum, valbuf); |
1251 | } | |
1252 | else if (len == 8) | |
1253 | { | |
1254 | gdb_assert (bitpos == 0 || bitpos == 64); | |
1255 | ||
7a36499a IR |
1256 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
1257 | + element + bitpos / 64; | |
8b39fe56 MK |
1258 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); |
1259 | } | |
1260 | else | |
1261 | { | |
1262 | gdb_assert (len == 4); | |
1263 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
1264 | ||
1265 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
1266 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
1267 | } | |
1268 | } | |
1269 | else if (sparc64_structure_or_union_p (type)) | |
1270 | { | |
1271 | int i; | |
1272 | ||
1273 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
1274 | { |
1275 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
1276 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
1277 | ||
1278 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
1279 | element, subpos); | |
1280 | } | |
200cc553 MK |
1281 | |
1282 | /* GCC has an interesting bug. If TYPE is a structure that has | |
1283 | a single `float' member, GCC doesn't treat it as a structure | |
1284 | at all, but rather as an ordinary `float' argument. This | |
1285 | argument will be stored in %f1, as required by the psABI. | |
1286 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
1287 | be stored in %f0. This bug is present in GCC 3.3.2, but |
1288 | probably in older releases to. To appease GCC, if a | |
1289 | structure has only a single `float' member, we store its | |
1290 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
1291 | if (TYPE_NFIELDS (type) == 1) |
1292 | { | |
1293 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
1294 | ||
1295 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
1296 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
1297 | } | |
8b39fe56 MK |
1298 | } |
1299 | } | |
1300 | ||
1301 | /* Fetch floating fields from a variable of type TYPE from the | |
1302 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
1303 | in VALBUF. This function can be called recursively and therefore | |
1304 | handles floating types in addition to structures. */ | |
1305 | ||
1306 | static void | |
1307 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1308 | gdb_byte *valbuf, int bitpos) |
8b39fe56 | 1309 | { |
7a36499a IR |
1310 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1311 | ||
1933fd8e VM |
1312 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1313 | { | |
1314 | int len = TYPE_LENGTH (type); | |
1315 | int regnum = SPARC_F0_REGNUM + bitpos / 32; | |
1316 | ||
1317 | valbuf += bitpos / 8; | |
1318 | if (len < 4) | |
1319 | { | |
1320 | gdb_byte buf[4]; | |
1321 | regcache_cooked_read (regcache, regnum, buf); | |
1322 | memcpy (valbuf, buf + 4 - len, len); | |
1323 | } | |
1324 | else | |
1325 | for (int i = 0; i < (len + 3) / 4; i++) | |
1326 | regcache_cooked_read (regcache, regnum + i, valbuf + i * 4); | |
1327 | } | |
1328 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1329 | { |
1330 | int len = TYPE_LENGTH (type); | |
1331 | int regnum; | |
1332 | ||
1333 | if (len == 16) | |
1334 | { | |
1335 | gdb_assert (bitpos == 0 || bitpos == 128); | |
1336 | ||
7a36499a IR |
1337 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
1338 | + bitpos / 128; | |
8b39fe56 MK |
1339 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
1340 | } | |
1341 | else if (len == 8) | |
1342 | { | |
1343 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
1344 | ||
7a36499a | 1345 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + bitpos / 64; |
8b39fe56 MK |
1346 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
1347 | } | |
1348 | else | |
1349 | { | |
1350 | gdb_assert (len == 4); | |
1351 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
1352 | ||
1353 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
1354 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
1355 | } | |
1356 | } | |
1357 | else if (sparc64_structure_or_union_p (type)) | |
1358 | { | |
1359 | int i; | |
1360 | ||
1361 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
1362 | { |
1363 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
1364 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
1365 | ||
1366 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
1367 | } | |
8b39fe56 MK |
1368 | } |
1369 | } | |
1370 | ||
1371 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
1372 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
1373 | ||
1374 | static CORE_ADDR | |
1375 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
1376 | struct value **args, CORE_ADDR sp, | |
1377 | int struct_return, CORE_ADDR struct_addr) | |
1378 | { | |
df4df182 | 1379 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
1380 | /* Number of extended words in the "parameter array". */ |
1381 | int num_elements = 0; | |
1382 | int element = 0; | |
1383 | int i; | |
1384 | ||
1385 | /* Take BIAS into account. */ | |
1386 | sp += BIAS; | |
1387 | ||
1388 | /* First we calculate the number of extended words in the "parameter | |
1389 | array". While doing so we also convert some of the arguments. */ | |
1390 | ||
1391 | if (struct_return) | |
1392 | num_elements++; | |
1393 | ||
1394 | for (i = 0; i < nargs; i++) | |
1395 | { | |
4991999e | 1396 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
1397 | int len = TYPE_LENGTH (type); |
1398 | ||
fb57d452 MK |
1399 | if (sparc64_structure_or_union_p (type) |
1400 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 MK |
1401 | { |
1402 | /* Structure or Union arguments. */ | |
1403 | if (len <= 16) | |
1404 | { | |
1405 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
1406 | num_elements++; | |
1407 | num_elements += ((len + 7) / 8); | |
1408 | } | |
1409 | else | |
1410 | { | |
1411 | /* The psABI says that "Structures or unions larger than | |
1412 | sixteen bytes are copied by the caller and passed | |
1413 | indirectly; the caller will pass the address of a | |
1414 | correctly aligned structure value. This sixty-four | |
1415 | bit address will occupy one word in the parameter | |
1416 | array, and may be promoted to an %o register like any | |
1417 | other pointer value." Allocate memory for these | |
1418 | values on the stack. */ | |
1419 | sp -= len; | |
1420 | ||
1421 | /* Use 16-byte alignment for these values. That's | |
1422 | always correct, and wasting a few bytes shouldn't be | |
1423 | a problem. */ | |
1424 | sp &= ~0xf; | |
1425 | ||
0fd88904 | 1426 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
1427 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
1428 | num_elements++; | |
1429 | } | |
1430 | } | |
cdc7b32f | 1431 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1432 | { |
1433 | /* Floating arguments. */ | |
8b39fe56 MK |
1434 | if (len == 16) |
1435 | { | |
1436 | /* The psABI says that "Each quad-precision parameter | |
1437 | value will be assigned to two extended words in the | |
1438 | parameter array. */ | |
1439 | num_elements += 2; | |
1440 | ||
1441 | /* The psABI says that "Long doubles must be | |
1442 | quad-aligned, and thus a hole might be introduced | |
1443 | into the parameter array to force alignment." Skip | |
1444 | an element if necessary. */ | |
49caec94 | 1445 | if ((num_elements % 2) && sparc64_16_byte_align_p (type)) |
8b39fe56 MK |
1446 | num_elements++; |
1447 | } | |
1448 | else | |
1449 | num_elements++; | |
1450 | } | |
1451 | else | |
1452 | { | |
1453 | /* Integral and pointer arguments. */ | |
1454 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1455 | ||
1456 | /* The psABI says that "Each argument value of integral type | |
1457 | smaller than an extended word will be widened by the | |
1458 | caller to an extended word according to the signed-ness | |
1459 | of the argument type." */ | |
1460 | if (len < 8) | |
df4df182 UW |
1461 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
1462 | args[i]); | |
8b39fe56 MK |
1463 | num_elements++; |
1464 | } | |
1465 | } | |
1466 | ||
1467 | /* Allocate the "parameter array". */ | |
1468 | sp -= num_elements * 8; | |
1469 | ||
1470 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
1471 | sp &= ~0xf; | |
1472 | ||
1473 | /* Now we store the arguments in to the "paramater array". Some | |
1474 | Integer or Pointer arguments and Structure or Union arguments | |
1475 | will be passed in %o registers. Some Floating arguments and | |
1476 | floating members of structures are passed in floating-point | |
1477 | registers. However, for functions with variable arguments, | |
1478 | floating arguments are stored in an %0 register, and for | |
1479 | functions without a prototype floating arguments are stored in | |
1480 | both a floating-point and an %o registers, or a floating-point | |
1481 | register and memory. To simplify the logic here we always pass | |
1482 | arguments in memory, an %o register, and a floating-point | |
1483 | register if appropriate. This should be no problem since the | |
1484 | contents of any unused memory or registers in the "parameter | |
1485 | array" are undefined. */ | |
1486 | ||
1487 | if (struct_return) | |
1488 | { | |
1489 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
1490 | element++; | |
1491 | } | |
1492 | ||
1493 | for (i = 0; i < nargs; i++) | |
1494 | { | |
e1613aba | 1495 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 1496 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
1497 | int len = TYPE_LENGTH (type); |
1498 | int regnum = -1; | |
e1613aba | 1499 | gdb_byte buf[16]; |
8b39fe56 | 1500 | |
fb57d452 MK |
1501 | if (sparc64_structure_or_union_p (type) |
1502 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 | 1503 | { |
49caec94 | 1504 | /* Structure, Union or long double Complex arguments. */ |
8b39fe56 MK |
1505 | gdb_assert (len <= 16); |
1506 | memset (buf, 0, sizeof (buf)); | |
cfcb22a5 SM |
1507 | memcpy (buf, valbuf, len); |
1508 | valbuf = buf; | |
8b39fe56 MK |
1509 | |
1510 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
1511 | element++; | |
1512 | ||
1513 | if (element < 6) | |
1514 | { | |
1515 | regnum = SPARC_O0_REGNUM + element; | |
1516 | if (len > 8 && element < 5) | |
1517 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
1518 | } | |
1519 | ||
1520 | if (element < 16) | |
1521 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
1522 | } | |
49caec94 JM |
1523 | else if (sparc64_complex_floating_p (type)) |
1524 | { | |
1525 | /* Float Complex or double Complex arguments. */ | |
1526 | if (element < 16) | |
1527 | { | |
7a36499a | 1528 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + element; |
49caec94 JM |
1529 | |
1530 | if (len == 16) | |
1531 | { | |
7a36499a | 1532 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D30_REGNUM) |
49caec94 | 1533 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
7a36499a | 1534 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D10_REGNUM) |
49caec94 JM |
1535 | regcache_cooked_write (regcache, |
1536 | SPARC_O0_REGNUM + element + 1, | |
1537 | valbuf + 8); | |
1538 | } | |
1539 | } | |
1540 | } | |
1541 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1542 | { |
1543 | /* Floating arguments. */ | |
1544 | if (len == 16) | |
1545 | { | |
1546 | if (element % 2) | |
1547 | element++; | |
1548 | if (element < 16) | |
7a36499a IR |
1549 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
1550 | + element / 2; | |
8b39fe56 MK |
1551 | } |
1552 | else if (len == 8) | |
1553 | { | |
1554 | if (element < 16) | |
7a36499a IR |
1555 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
1556 | + element; | |
8b39fe56 | 1557 | } |
fe10a582 | 1558 | else if (len == 4) |
8b39fe56 MK |
1559 | { |
1560 | /* The psABI says "Each single-precision parameter value | |
1561 | will be assigned to one extended word in the | |
1562 | parameter array, and right-justified within that | |
cdc7b32f | 1563 | word; the left half (even float register) is |
8b39fe56 MK |
1564 | undefined." Even though the psABI says that "the |
1565 | left half is undefined", set it to zero here. */ | |
1566 | memset (buf, 0, 4); | |
8ada74e3 MK |
1567 | memcpy (buf + 4, valbuf, 4); |
1568 | valbuf = buf; | |
8b39fe56 MK |
1569 | len = 8; |
1570 | if (element < 16) | |
7a36499a IR |
1571 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
1572 | + element; | |
8b39fe56 MK |
1573 | } |
1574 | } | |
1575 | else | |
1576 | { | |
1577 | /* Integral and pointer arguments. */ | |
1578 | gdb_assert (len == 8); | |
1579 | if (element < 6) | |
1580 | regnum = SPARC_O0_REGNUM + element; | |
1581 | } | |
1582 | ||
1583 | if (regnum != -1) | |
1584 | { | |
1585 | regcache_cooked_write (regcache, regnum, valbuf); | |
1586 | ||
1587 | /* If we're storing the value in a floating-point register, | |
1588 | also store it in the corresponding %0 register(s). */ | |
7a36499a IR |
1589 | if (regnum >= gdbarch_num_regs (gdbarch)) |
1590 | { | |
1591 | regnum -= gdbarch_num_regs (gdbarch); | |
1592 | ||
1593 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
1594 | { | |
1595 | gdb_assert (element < 6); | |
1596 | regnum = SPARC_O0_REGNUM + element; | |
1597 | regcache_cooked_write (regcache, regnum, valbuf); | |
1598 | } | |
1599 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
1600 | { | |
1601 | gdb_assert (element < 5); | |
1602 | regnum = SPARC_O0_REGNUM + element; | |
1603 | regcache_cooked_write (regcache, regnum, valbuf); | |
1604 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
1605 | } | |
1606 | } | |
8b39fe56 MK |
1607 | } |
1608 | ||
c4f2d4d7 | 1609 | /* Always store the argument in memory. */ |
8b39fe56 MK |
1610 | write_memory (sp + element * 8, valbuf, len); |
1611 | element += ((len + 7) / 8); | |
1612 | } | |
1613 | ||
1614 | gdb_assert (element == num_elements); | |
1615 | ||
1616 | /* Take BIAS into account. */ | |
1617 | sp -= BIAS; | |
1618 | return sp; | |
1619 | } | |
1620 | ||
49a45ecf JB |
1621 | static CORE_ADDR |
1622 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
1623 | { | |
1624 | /* The ABI requires 16-byte alignment. */ | |
1625 | return address & ~0xf; | |
1626 | } | |
1627 | ||
8b39fe56 | 1628 | static CORE_ADDR |
7d9b040b | 1629 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
1630 | struct regcache *regcache, CORE_ADDR bp_addr, |
1631 | int nargs, struct value **args, CORE_ADDR sp, | |
1632 | int struct_return, CORE_ADDR struct_addr) | |
1633 | { | |
1634 | /* Set return address. */ | |
1635 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
1636 | ||
1637 | /* Set up function arguments. */ | |
1638 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
1639 | struct_return, struct_addr); | |
1640 | ||
1641 | /* Allocate the register save area. */ | |
1642 | sp -= 16 * 8; | |
1643 | ||
1644 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 1645 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
1646 | |
1647 | /* Finally, update the stack pointer. */ | |
1648 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
1649 | ||
5b2d44a0 | 1650 | return sp + BIAS; |
8b39fe56 MK |
1651 | } |
1652 | \f | |
1653 | ||
1654 | /* Extract from an array REGBUF containing the (raw) register state, a | |
1655 | function return value of TYPE, and copy that into VALBUF. */ | |
1656 | ||
1657 | static void | |
1658 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1659 | gdb_byte *valbuf) |
8b39fe56 MK |
1660 | { |
1661 | int len = TYPE_LENGTH (type); | |
e1613aba | 1662 | gdb_byte buf[32]; |
8b39fe56 MK |
1663 | int i; |
1664 | ||
1665 | if (sparc64_structure_or_union_p (type)) | |
1666 | { | |
1667 | /* Structure or Union return values. */ | |
1668 | gdb_assert (len <= 32); | |
1669 | ||
1670 | for (i = 0; i < ((len + 7) / 8); i++) | |
1671 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1672 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
1673 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
1674 | memcpy (valbuf, buf, len); | |
1675 | } | |
cdc7b32f | 1676 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1677 | { |
1678 | /* Floating return values. */ | |
1679 | for (i = 0; i < len / 4; i++) | |
1680 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1681 | memcpy (valbuf, buf, len); | |
1682 | } | |
4bd87714 JB |
1683 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1684 | { | |
1685 | /* Small arrays are returned the same way as small structures. */ | |
1686 | gdb_assert (len <= 32); | |
1687 | ||
1688 | for (i = 0; i < ((len + 7) / 8); i++) | |
1689 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1690 | memcpy (valbuf, buf, len); | |
1691 | } | |
8b39fe56 MK |
1692 | else |
1693 | { | |
1694 | /* Integral and pointer return values. */ | |
1695 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1696 | ||
1697 | /* Just stripping off any unused bytes should preserve the | |
1698 | signed-ness just fine. */ | |
1699 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1700 | memcpy (valbuf, buf + 8 - len, len); | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | /* Write into the appropriate registers a function return value stored | |
1705 | in VALBUF of type TYPE. */ | |
1706 | ||
1707 | static void | |
1708 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1709 | const gdb_byte *valbuf) |
8b39fe56 MK |
1710 | { |
1711 | int len = TYPE_LENGTH (type); | |
e1613aba | 1712 | gdb_byte buf[16]; |
8b39fe56 MK |
1713 | int i; |
1714 | ||
1715 | if (sparc64_structure_or_union_p (type)) | |
1716 | { | |
1717 | /* Structure or Union return values. */ | |
1718 | gdb_assert (len <= 32); | |
1719 | ||
1720 | /* Simplify matters by storing the complete value (including | |
1721 | floating members) into %o0 and %o1. Floating members are | |
1722 | also store in the appropriate floating-point registers. */ | |
1723 | memset (buf, 0, sizeof (buf)); | |
1724 | memcpy (buf, valbuf, len); | |
1725 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1726 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1727 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1728 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1729 | } | |
fe10a582 | 1730 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1731 | { |
1732 | /* Floating return values. */ | |
1733 | memcpy (buf, valbuf, len); | |
1734 | for (i = 0; i < len / 4; i++) | |
1735 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1736 | } | |
4bd87714 JB |
1737 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1738 | { | |
1739 | /* Small arrays are returned the same way as small structures. */ | |
1740 | gdb_assert (len <= 32); | |
1741 | ||
1742 | memset (buf, 0, sizeof (buf)); | |
1743 | memcpy (buf, valbuf, len); | |
1744 | for (i = 0; i < ((len + 7) / 8); i++) | |
1745 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1746 | } | |
8b39fe56 MK |
1747 | else |
1748 | { | |
1749 | /* Integral and pointer return values. */ | |
1750 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1751 | ||
1752 | /* ??? Do we need to do any sign-extension here? */ | |
1753 | memset (buf, 0, 8); | |
1754 | memcpy (buf + 8 - len, valbuf, len); | |
1755 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1756 | } | |
1757 | } | |
1758 | ||
60af1db2 | 1759 | static enum return_value_convention |
6a3a010b | 1760 | sparc64_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
1761 | struct type *type, struct regcache *regcache, |
1762 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1763 | { |
60af1db2 MK |
1764 | if (TYPE_LENGTH (type) > 32) |
1765 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1766 | ||
1767 | if (readbuf) | |
1768 | sparc64_extract_return_value (type, regcache, readbuf); | |
1769 | if (writebuf) | |
1770 | sparc64_store_return_value (type, regcache, writebuf); | |
1771 | ||
1772 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1773 | } |
8b39fe56 | 1774 | \f |
8b39fe56 | 1775 | |
02a71ae8 MK |
1776 | static void |
1777 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1778 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1779 | struct frame_info *this_frame) |
02a71ae8 MK |
1780 | { |
1781 | switch (regnum) | |
1782 | { | |
1783 | case SPARC_G0_REGNUM: | |
1784 | /* Since %g0 is always zero, there is no point in saving it, and | |
1785 | people will be inclined omit it from the CFI. Make sure we | |
1786 | don't warn about that. */ | |
1787 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1788 | break; | |
1789 | case SPARC_SP_REGNUM: | |
1790 | reg->how = DWARF2_FRAME_REG_CFA; | |
1791 | break; | |
1792 | case SPARC64_PC_REGNUM: | |
1793 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1794 | reg->loc.offset = 8; | |
1795 | break; | |
1796 | case SPARC64_NPC_REGNUM: | |
1797 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1798 | reg->loc.offset = 12; | |
1799 | break; | |
1800 | } | |
1801 | } | |
1802 | ||
58afddc6 WP |
1803 | /* sparc64_addr_bits_remove - remove useless address bits */ |
1804 | ||
1805 | static CORE_ADDR | |
1806 | sparc64_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr) | |
1807 | { | |
1808 | return adi_normalize_address (addr); | |
1809 | } | |
1810 | ||
8b39fe56 | 1811 | void |
386c036b | 1812 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1813 | { |
386c036b | 1814 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1815 | |
386c036b MK |
1816 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1817 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
3f7b46f2 IR |
1818 | tdep->fpu_register_names = sparc64_fpu_register_names; |
1819 | tdep->fpu_registers_num = ARRAY_SIZE (sparc64_fpu_register_names); | |
1820 | tdep->cp0_register_names = sparc64_cp0_register_names; | |
1821 | tdep->cp0_registers_num = ARRAY_SIZE (sparc64_cp0_register_names); | |
8b39fe56 | 1822 | |
386c036b | 1823 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1824 | set_gdbarch_long_bit (gdbarch, 64); |
1825 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1826 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 | 1827 | |
53375380 PA |
1828 | set_gdbarch_wchar_bit (gdbarch, 16); |
1829 | set_gdbarch_wchar_signed (gdbarch, 0); | |
1830 | ||
8b39fe56 MK |
1831 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); |
1832 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1833 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1834 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
3f7b46f2 IR |
1835 | set_tdesc_pseudo_register_name (gdbarch, sparc64_pseudo_register_name); |
1836 | set_tdesc_pseudo_register_type (gdbarch, sparc64_pseudo_register_type); | |
8b39fe56 MK |
1837 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); |
1838 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1839 | ||
1840 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1841 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1842 | |
1843 | /* Call dummy code. */ | |
49a45ecf | 1844 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1845 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1846 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1847 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1848 | ||
60af1db2 | 1849 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1850 | set_gdbarch_stabs_argument_has_addr |
1851 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1852 | |
1853 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
c9cf6e20 | 1854 | set_gdbarch_stack_frame_destroyed_p (gdbarch, sparc_stack_frame_destroyed_p); |
8b39fe56 | 1855 | |
02a71ae8 MK |
1856 | /* Hook in the DWARF CFI frame unwinder. */ |
1857 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1858 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1859 | StackGhost issues have been resolved. */ | |
1860 | ||
236369e7 | 1861 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1862 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
58afddc6 WP |
1863 | |
1864 | set_gdbarch_addr_bits_remove (gdbarch, sparc64_addr_bits_remove); | |
386c036b MK |
1865 | } |
1866 | \f | |
8b39fe56 | 1867 | |
386c036b | 1868 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1869 | |
386c036b MK |
1870 | #define TSTATE_CWP 0x000000000000001fULL |
1871 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1872 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1873 | |
386c036b | 1874 | #define PSR_S 0x00000080 |
39b06c20 | 1875 | #ifndef PSR_ICC |
386c036b | 1876 | #define PSR_ICC 0x00f00000 |
39b06c20 | 1877 | #endif |
386c036b | 1878 | #define PSR_VERS 0x0f000000 |
39b06c20 | 1879 | #ifndef PSR_IMPL |
386c036b | 1880 | #define PSR_IMPL 0xf0000000 |
39b06c20 | 1881 | #endif |
386c036b MK |
1882 | #define PSR_V8PLUS 0xff000000 |
1883 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1884 | |
3567a8ea | 1885 | void |
b4fd25c9 | 1886 | sparc64_supply_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1887 | struct regcache *regcache, |
1888 | int regnum, const void *gregs) | |
8b39fe56 | 1889 | { |
e17a4113 UW |
1890 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1891 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1892 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1893 | const gdb_byte *regs = (const gdb_byte *) gregs; |
22e74ef9 | 1894 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1895 | int i; |
1896 | ||
386c036b | 1897 | if (sparc32) |
8b39fe56 | 1898 | { |
386c036b MK |
1899 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1900 | { | |
b4fd25c9 | 1901 | int offset = gregmap->r_tstate_offset; |
386c036b | 1902 | ULONGEST tstate, psr; |
e1613aba | 1903 | gdb_byte buf[4]; |
386c036b | 1904 | |
e17a4113 | 1905 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1906 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1907 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1908 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1909 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1910 | } | |
1911 | ||
1912 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1913 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 1914 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
1915 | |
1916 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1917 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 1918 | regs + gregmap->r_npc_offset + 4); |
8b39fe56 | 1919 | |
386c036b | 1920 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1921 | { |
b4fd25c9 | 1922 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 1923 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1924 | } |
1925 | } | |
1926 | else | |
1927 | { | |
386c036b MK |
1928 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1929 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 1930 | regs + gregmap->r_tstate_offset); |
8b39fe56 | 1931 | |
386c036b MK |
1932 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1933 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 1934 | regs + gregmap->r_pc_offset); |
386c036b MK |
1935 | |
1936 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1937 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 1938 | regs + gregmap->r_npc_offset); |
386c036b MK |
1939 | |
1940 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1941 | { |
e1613aba | 1942 | gdb_byte buf[8]; |
386c036b MK |
1943 | |
1944 | memset (buf, 0, 8); | |
b4fd25c9 AA |
1945 | memcpy (buf + 8 - gregmap->r_y_size, |
1946 | regs + gregmap->r_y_offset, gregmap->r_y_size); | |
386c036b | 1947 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); |
3567a8ea | 1948 | } |
8b39fe56 | 1949 | |
386c036b | 1950 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
b4fd25c9 | 1951 | && gregmap->r_fprs_offset != -1) |
386c036b | 1952 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 1953 | regs + gregmap->r_fprs_offset); |
386c036b MK |
1954 | } |
1955 | ||
1956 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
22e74ef9 | 1957 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero); |
386c036b MK |
1958 | |
1959 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1960 | { | |
b4fd25c9 | 1961 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1962 | |
1963 | if (sparc32) | |
1964 | offset += 4; | |
1965 | ||
1966 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1967 | { |
3567a8ea | 1968 | if (regnum == i || regnum == -1) |
386c036b MK |
1969 | regcache_raw_supply (regcache, i, regs + offset); |
1970 | offset += 8; | |
1971 | } | |
1972 | } | |
1973 | ||
1974 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1975 | { | |
1976 | /* Not all of the register set variants include Locals and | |
1977 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 1978 | if (gregmap->r_l0_offset == -1) |
386c036b MK |
1979 | { |
1980 | ULONGEST sp; | |
1981 | ||
1982 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1983 | sparc_supply_rwindow (regcache, sp, regnum); | |
1984 | } | |
1985 | else | |
1986 | { | |
b4fd25c9 | 1987 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1988 | |
1989 | if (sparc32) | |
1990 | offset += 4; | |
1991 | ||
1992 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1993 | { |
386c036b MK |
1994 | if (regnum == i || regnum == -1) |
1995 | regcache_raw_supply (regcache, i, regs + offset); | |
1996 | offset += 8; | |
3567a8ea | 1997 | } |
8b39fe56 MK |
1998 | } |
1999 | } | |
2000 | } | |
2001 | ||
2002 | void | |
b4fd25c9 | 2003 | sparc64_collect_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
2004 | const struct regcache *regcache, |
2005 | int regnum, void *gregs) | |
8b39fe56 | 2006 | { |
e17a4113 UW |
2007 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
2008 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
2009 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 2010 | gdb_byte *regs = (gdb_byte *) gregs; |
3567a8ea MK |
2011 | int i; |
2012 | ||
386c036b | 2013 | if (sparc32) |
8b39fe56 | 2014 | { |
386c036b MK |
2015 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
2016 | { | |
b4fd25c9 | 2017 | int offset = gregmap->r_tstate_offset; |
386c036b | 2018 | ULONGEST tstate, psr; |
e1613aba | 2019 | gdb_byte buf[8]; |
386c036b | 2020 | |
e17a4113 | 2021 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 2022 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 2023 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
2024 | tstate |= (psr & PSR_ICC) << 12; |
2025 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
2026 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 2027 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
2028 | memcpy (regs + offset, buf, 8); |
2029 | } | |
8b39fe56 | 2030 | |
386c036b MK |
2031 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
2032 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 2033 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
2034 | |
2035 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
2036 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 2037 | regs + gregmap->r_npc_offset + 4); |
386c036b MK |
2038 | |
2039 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 2040 | { |
b4fd25c9 | 2041 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 2042 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
2043 | } |
2044 | } | |
2045 | else | |
2046 | { | |
386c036b MK |
2047 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
2048 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 2049 | regs + gregmap->r_tstate_offset); |
386c036b MK |
2050 | |
2051 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
2052 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 2053 | regs + gregmap->r_pc_offset); |
3567a8ea | 2054 | |
386c036b MK |
2055 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
2056 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 2057 | regs + gregmap->r_npc_offset); |
3567a8ea | 2058 | |
386c036b | 2059 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 2060 | { |
e1613aba | 2061 | gdb_byte buf[8]; |
386c036b MK |
2062 | |
2063 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
b4fd25c9 AA |
2064 | memcpy (regs + gregmap->r_y_offset, |
2065 | buf + 8 - gregmap->r_y_size, gregmap->r_y_size); | |
386c036b MK |
2066 | } |
2067 | ||
2068 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
b4fd25c9 | 2069 | && gregmap->r_fprs_offset != -1) |
386c036b | 2070 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 2071 | regs + gregmap->r_fprs_offset); |
386c036b MK |
2072 | |
2073 | } | |
2074 | ||
2075 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
2076 | { | |
b4fd25c9 | 2077 | int offset = gregmap->r_g1_offset; |
386c036b MK |
2078 | |
2079 | if (sparc32) | |
2080 | offset += 4; | |
2081 | ||
2082 | /* %g0 is always zero. */ | |
2083 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
2084 | { | |
2085 | if (regnum == i || regnum == -1) | |
2086 | regcache_raw_collect (regcache, i, regs + offset); | |
2087 | offset += 8; | |
2088 | } | |
2089 | } | |
2090 | ||
2091 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
2092 | { | |
2093 | /* Not all of the register set variants include Locals and | |
2094 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 2095 | if (gregmap->r_l0_offset != -1) |
386c036b | 2096 | { |
b4fd25c9 | 2097 | int offset = gregmap->r_l0_offset; |
386c036b MK |
2098 | |
2099 | if (sparc32) | |
2100 | offset += 4; | |
2101 | ||
2102 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 2103 | { |
386c036b MK |
2104 | if (regnum == i || regnum == -1) |
2105 | regcache_raw_collect (regcache, i, regs + offset); | |
2106 | offset += 8; | |
3567a8ea MK |
2107 | } |
2108 | } | |
8b39fe56 MK |
2109 | } |
2110 | } | |
8b39fe56 | 2111 | |
386c036b | 2112 | void |
b4fd25c9 | 2113 | sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2114 | struct regcache *regcache, |
386c036b MK |
2115 | int regnum, const void *fpregs) |
2116 | { | |
e6d4f032 | 2117 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 2118 | const gdb_byte *regs = (const gdb_byte *) fpregs; |
386c036b MK |
2119 | int i; |
2120 | ||
2121 | for (i = 0; i < 32; i++) | |
2122 | { | |
2123 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 2124 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 2125 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
2126 | } |
2127 | ||
2128 | if (sparc32) | |
2129 | { | |
2130 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
2131 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 2132 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2133 | } |
2134 | else | |
2135 | { | |
2136 | for (i = 0; i < 16; i++) | |
2137 | { | |
2138 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
2139 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 2140 | (regs + fpregmap->r_f0_offset |
db75c717 | 2141 | + (32 * 4) + (i * 8))); |
386c036b MK |
2142 | } |
2143 | ||
2144 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
2145 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 2146 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2147 | } |
2148 | } | |
8b39fe56 MK |
2149 | |
2150 | void | |
b4fd25c9 | 2151 | sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2152 | const struct regcache *regcache, |
386c036b | 2153 | int regnum, void *fpregs) |
8b39fe56 | 2154 | { |
e6d4f032 | 2155 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 2156 | gdb_byte *regs = (gdb_byte *) fpregs; |
386c036b MK |
2157 | int i; |
2158 | ||
2159 | for (i = 0; i < 32; i++) | |
2160 | { | |
2161 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 2162 | regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 2163 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
2164 | } |
2165 | ||
2166 | if (sparc32) | |
2167 | { | |
2168 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
2169 | regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 2170 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2171 | } |
2172 | else | |
2173 | { | |
2174 | for (i = 0; i < 16; i++) | |
2175 | { | |
2176 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
2177 | regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 2178 | (regs + fpregmap->r_f0_offset |
db75c717 | 2179 | + (32 * 4) + (i * 8))); |
386c036b MK |
2180 | } |
2181 | ||
2182 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
2183 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 2184 | regs + fpregmap->r_fsr_offset); |
386c036b | 2185 | } |
8b39fe56 | 2186 | } |
fd936806 | 2187 | |
b4fd25c9 | 2188 | const struct sparc_fpregmap sparc64_bsd_fpregmap = |
db75c717 DM |
2189 | { |
2190 | 0 * 8, /* %f0 */ | |
2191 | 32 * 8, /* %fsr */ | |
2192 | }; |