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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); |
87028b87 TT |
314 | gdb::unique_xmalloc_ptr<char> data |
315 | = target_fileio_read_stralloc (NULL, filename); | |
58afddc6 WP |
316 | if (data) |
317 | { | |
58afddc6 WP |
318 | adi_stat_t adi_stat = get_adi_info (pid); |
319 | char *line; | |
87028b87 | 320 | for (line = strtok (data.get (), "\n"); line; line = strtok (NULL, "\n")) |
58afddc6 WP |
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) | |
87028b87 | 330 | return true; |
58afddc6 WP |
331 | } |
332 | } | |
58afddc6 WP |
333 | } |
334 | else | |
335 | warning (_("unable to open /proc file '%s'"), filename); | |
336 | ||
337 | return false; | |
338 | } | |
339 | ||
340 | /* Read ADI version tag value for memory locations starting at "VADDR" | |
341 | for "SIZE" number of bytes. */ | |
342 | ||
343 | static int | |
344 | adi_read_versions (CORE_ADDR vaddr, size_t size, unsigned char *tags) | |
345 | { | |
346 | int fd = adi_tag_fd (); | |
347 | if (fd == -1) | |
348 | return -1; | |
349 | ||
350 | if (!adi_is_addr_mapped (vaddr, size)) | |
351 | { | |
352 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
654670a4 WP |
353 | error(_("Address at %s is not in ADI maps"), |
354 | paddress (target_gdbarch (), vaddr * ast.blksize)); | |
58afddc6 WP |
355 | } |
356 | ||
357 | int target_errno; | |
358 | return target_fileio_pread (fd, tags, size, vaddr, &target_errno); | |
359 | } | |
360 | ||
361 | /* Write ADI version tag for memory locations starting at "VADDR" for | |
362 | "SIZE" number of bytes to "TAGS". */ | |
363 | ||
364 | static int | |
365 | adi_write_versions (CORE_ADDR vaddr, size_t size, unsigned char *tags) | |
366 | { | |
367 | int fd = adi_tag_fd (); | |
368 | if (fd == -1) | |
369 | return -1; | |
370 | ||
371 | if (!adi_is_addr_mapped (vaddr, size)) | |
372 | { | |
373 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
654670a4 WP |
374 | error(_("Address at %s is not in ADI maps"), |
375 | paddress (target_gdbarch (), vaddr * ast.blksize)); | |
58afddc6 WP |
376 | } |
377 | ||
378 | int target_errno; | |
379 | return target_fileio_pwrite (fd, tags, size, vaddr, &target_errno); | |
380 | } | |
381 | ||
382 | /* Print ADI version tag value in "TAGS" for memory locations starting | |
383 | at "VADDR" with number of "CNT". */ | |
384 | ||
385 | static void | |
386 | adi_print_versions (CORE_ADDR vaddr, size_t cnt, unsigned char *tags) | |
387 | { | |
388 | int v_idx = 0; | |
389 | const int maxelts = 8; /* # of elements per line */ | |
390 | ||
391 | adi_stat_t adi_stat = get_adi_info (ptid_get_pid (inferior_ptid)); | |
392 | ||
393 | while (cnt > 0) | |
394 | { | |
395 | QUIT; | |
654670a4 WP |
396 | printf_filtered ("%s:\t", |
397 | paddress (target_gdbarch (), vaddr * adi_stat.blksize)); | |
58afddc6 WP |
398 | for (int i = maxelts; i > 0 && cnt > 0; i--, cnt--) |
399 | { | |
400 | if (tags[v_idx] == 0xff) /* no version tag */ | |
401 | printf_filtered ("-"); | |
402 | else | |
403 | printf_filtered ("%1X", tags[v_idx]); | |
404 | if (cnt > 1) | |
405 | printf_filtered (" "); | |
406 | ++v_idx; | |
407 | } | |
408 | printf_filtered ("\n"); | |
409 | gdb_flush (gdb_stdout); | |
410 | vaddr += maxelts; | |
411 | } | |
412 | } | |
413 | ||
414 | static void | |
415 | do_examine (CORE_ADDR start, int bcnt) | |
416 | { | |
417 | CORE_ADDR vaddr = adi_normalize_address (start); | |
418 | struct cleanup *cleanup; | |
419 | ||
420 | CORE_ADDR vstart = adi_align_address (vaddr); | |
421 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
422 | unsigned char *buf = (unsigned char *) xmalloc (cnt); | |
423 | cleanup = make_cleanup (xfree, buf); | |
424 | int read_cnt = adi_read_versions (vstart, cnt, buf); | |
425 | if (read_cnt == -1) | |
426 | error (_("No ADI information")); | |
427 | else if (read_cnt < cnt) | |
654670a4 | 428 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 WP |
429 | |
430 | adi_print_versions (vstart, cnt, buf); | |
431 | ||
432 | do_cleanups (cleanup); | |
433 | } | |
434 | ||
435 | static void | |
436 | do_assign (CORE_ADDR start, size_t bcnt, int version) | |
437 | { | |
438 | CORE_ADDR vaddr = adi_normalize_address (start); | |
439 | ||
440 | CORE_ADDR vstart = adi_align_address (vaddr); | |
441 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
442 | std::vector<unsigned char> buf (cnt, version); | |
443 | int set_cnt = adi_write_versions (vstart, cnt, buf.data ()); | |
444 | ||
445 | if (set_cnt == -1) | |
446 | error (_("No ADI information")); | |
447 | else if (set_cnt < cnt) | |
654670a4 | 448 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 WP |
449 | |
450 | } | |
451 | ||
452 | /* ADI examine version tag command. | |
453 | ||
454 | Command syntax: | |
455 | ||
456 | adi (examine|x)/count <addr> */ | |
457 | ||
458 | static void | |
459 | adi_examine_command (char *args, int from_tty) | |
460 | { | |
461 | /* make sure program is active and adi is available */ | |
462 | if (!target_has_execution) | |
463 | error (_("ADI command requires a live process/thread")); | |
464 | ||
465 | if (!adi_available ()) | |
466 | error (_("No ADI information")); | |
467 | ||
468 | pid_t pid = ptid_get_pid (inferior_ptid); | |
469 | sparc64_adi_info *proc = get_adi_info_proc (pid); | |
470 | int cnt = 1; | |
471 | char *p = args; | |
472 | if (p && *p == '/') | |
473 | { | |
474 | p++; | |
475 | cnt = get_number (&p); | |
476 | } | |
477 | ||
478 | CORE_ADDR next_address = 0; | |
479 | if (p != 0 && *p != 0) | |
480 | next_address = parse_and_eval_address (p); | |
481 | if (!cnt || !next_address) | |
482 | error (_("Usage: adi examine|x[/count] <addr>")); | |
483 | ||
484 | do_examine (next_address, cnt); | |
485 | } | |
486 | ||
487 | /* ADI assign version tag command. | |
488 | ||
489 | Command syntax: | |
490 | ||
491 | adi (assign|a)/count <addr> = <version> */ | |
492 | ||
493 | static void | |
494 | adi_assign_command (char *args, int from_tty) | |
495 | { | |
496 | /* make sure program is active and adi is available */ | |
497 | if (!target_has_execution) | |
498 | error (_("ADI command requires a live process/thread")); | |
499 | ||
500 | if (!adi_available ()) | |
501 | error (_("No ADI information")); | |
502 | ||
503 | char *exp = args; | |
504 | if (exp == 0) | |
505 | error_no_arg (_("Usage: adi assign|a[/count] <addr> = <version>")); | |
506 | ||
507 | char *q = (char *) strchr (exp, '='); | |
508 | if (q) | |
509 | *q++ = 0; | |
510 | else | |
511 | error (_("Usage: adi assign|a[/count] <addr> = <version>")); | |
512 | ||
513 | size_t cnt = 1; | |
514 | char *p = args; | |
515 | if (exp && *exp == '/') | |
516 | { | |
517 | p = exp + 1; | |
518 | cnt = get_number (&p); | |
519 | } | |
520 | ||
521 | CORE_ADDR next_address = 0; | |
522 | if (p != 0 && *p != 0) | |
523 | next_address = parse_and_eval_address (p); | |
524 | else | |
525 | error (_("Usage: adi assign|a[/count] <addr> = <version>")); | |
526 | ||
527 | int version = 0; | |
528 | if (q != NULL) /* parse version tag */ | |
529 | { | |
530 | adi_stat_t ast = get_adi_info (ptid_get_pid (inferior_ptid)); | |
531 | version = parse_and_eval_long (q); | |
532 | if (version < 0 || version > ast.max_version) | |
533 | error (_("Invalid ADI version tag %d"), version); | |
534 | } | |
535 | ||
536 | do_assign (next_address, cnt, version); | |
537 | } | |
538 | ||
539 | void | |
540 | _initialize_sparc64_adi_tdep (void) | |
541 | { | |
542 | ||
543 | add_prefix_cmd ("adi", class_support, info_adi_command, | |
544 | _("ADI version related commands."), | |
545 | &sparc64adilist, "adi ", 0, &cmdlist); | |
546 | add_cmd ("examine", class_support, adi_examine_command, | |
547 | _("Examine ADI versions."), &sparc64adilist); | |
548 | add_alias_cmd ("x", "examine", no_class, 1, &sparc64adilist); | |
549 | add_cmd ("assign", class_support, adi_assign_command, | |
550 | _("Assign ADI versions."), &sparc64adilist); | |
551 | ||
552 | } | |
553 | \f | |
554 | ||
8b39fe56 MK |
555 | /* The functions on this page are intended to be used to classify |
556 | function arguments. */ | |
557 | ||
8b39fe56 MK |
558 | /* Check whether TYPE is "Integral or Pointer". */ |
559 | ||
560 | static int | |
561 | sparc64_integral_or_pointer_p (const struct type *type) | |
562 | { | |
563 | switch (TYPE_CODE (type)) | |
564 | { | |
565 | case TYPE_CODE_INT: | |
566 | case TYPE_CODE_BOOL: | |
567 | case TYPE_CODE_CHAR: | |
568 | case TYPE_CODE_ENUM: | |
569 | case TYPE_CODE_RANGE: | |
570 | { | |
571 | int len = TYPE_LENGTH (type); | |
572 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); | |
573 | } | |
574 | return 1; | |
575 | case TYPE_CODE_PTR: | |
576 | case TYPE_CODE_REF: | |
aa006118 | 577 | case TYPE_CODE_RVALUE_REF: |
8b39fe56 MK |
578 | { |
579 | int len = TYPE_LENGTH (type); | |
580 | gdb_assert (len == 8); | |
581 | } | |
582 | return 1; | |
583 | default: | |
584 | break; | |
585 | } | |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
590 | /* Check whether TYPE is "Floating". */ | |
591 | ||
592 | static int | |
593 | sparc64_floating_p (const struct type *type) | |
594 | { | |
595 | switch (TYPE_CODE (type)) | |
596 | { | |
597 | case TYPE_CODE_FLT: | |
598 | { | |
599 | int len = TYPE_LENGTH (type); | |
600 | gdb_assert (len == 4 || len == 8 || len == 16); | |
601 | } | |
602 | return 1; | |
603 | default: | |
604 | break; | |
605 | } | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
fe10a582 DM |
610 | /* Check whether TYPE is "Complex Floating". */ |
611 | ||
612 | static int | |
613 | sparc64_complex_floating_p (const struct type *type) | |
614 | { | |
615 | switch (TYPE_CODE (type)) | |
616 | { | |
617 | case TYPE_CODE_COMPLEX: | |
618 | { | |
619 | int len = TYPE_LENGTH (type); | |
620 | gdb_assert (len == 8 || len == 16 || len == 32); | |
621 | } | |
622 | return 1; | |
623 | default: | |
624 | break; | |
625 | } | |
626 | ||
627 | return 0; | |
628 | } | |
629 | ||
0497f5b0 JB |
630 | /* Check whether TYPE is "Structure or Union". |
631 | ||
632 | In terms of Ada subprogram calls, arrays are treated the same as | |
633 | struct and union types. So this function also returns non-zero | |
634 | for array types. */ | |
8b39fe56 MK |
635 | |
636 | static int | |
637 | sparc64_structure_or_union_p (const struct type *type) | |
638 | { | |
639 | switch (TYPE_CODE (type)) | |
640 | { | |
641 | case TYPE_CODE_STRUCT: | |
642 | case TYPE_CODE_UNION: | |
0497f5b0 | 643 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
644 | return 1; |
645 | default: | |
646 | break; | |
647 | } | |
648 | ||
649 | return 0; | |
650 | } | |
fd936806 MK |
651 | \f |
652 | ||
209bd28e | 653 | /* Construct types for ISA-specific registers. */ |
fd936806 | 654 | |
209bd28e UW |
655 | static struct type * |
656 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
657 | { | |
658 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
fd936806 | 659 | |
209bd28e UW |
660 | if (!tdep->sparc64_pstate_type) |
661 | { | |
662 | struct type *type; | |
663 | ||
77b7c781 | 664 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 64); |
209bd28e UW |
665 | append_flags_type_flag (type, 0, "AG"); |
666 | append_flags_type_flag (type, 1, "IE"); | |
667 | append_flags_type_flag (type, 2, "PRIV"); | |
668 | append_flags_type_flag (type, 3, "AM"); | |
669 | append_flags_type_flag (type, 4, "PEF"); | |
670 | append_flags_type_flag (type, 5, "RED"); | |
671 | append_flags_type_flag (type, 8, "TLE"); | |
672 | append_flags_type_flag (type, 9, "CLE"); | |
673 | append_flags_type_flag (type, 10, "PID0"); | |
674 | append_flags_type_flag (type, 11, "PID1"); | |
675 | ||
676 | tdep->sparc64_pstate_type = type; | |
677 | } | |
fd936806 | 678 | |
209bd28e UW |
679 | return tdep->sparc64_pstate_type; |
680 | } | |
fd936806 | 681 | |
5badf10a IR |
682 | static struct type * |
683 | sparc64_ccr_type (struct gdbarch *gdbarch) | |
684 | { | |
685 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
686 | ||
687 | if (tdep->sparc64_ccr_type == NULL) | |
688 | { | |
689 | struct type *type; | |
690 | ||
77b7c781 | 691 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_ccr", 64); |
5badf10a IR |
692 | append_flags_type_flag (type, 0, "icc.c"); |
693 | append_flags_type_flag (type, 1, "icc.v"); | |
694 | append_flags_type_flag (type, 2, "icc.z"); | |
695 | append_flags_type_flag (type, 3, "icc.n"); | |
696 | append_flags_type_flag (type, 4, "xcc.c"); | |
697 | append_flags_type_flag (type, 5, "xcc.v"); | |
698 | append_flags_type_flag (type, 6, "xcc.z"); | |
699 | append_flags_type_flag (type, 7, "xcc.n"); | |
700 | ||
701 | tdep->sparc64_ccr_type = type; | |
702 | } | |
703 | ||
704 | return tdep->sparc64_ccr_type; | |
705 | } | |
706 | ||
209bd28e UW |
707 | static struct type * |
708 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
709 | { | |
710 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
711 | ||
712 | if (!tdep->sparc64_fsr_type) | |
713 | { | |
714 | struct type *type; | |
715 | ||
77b7c781 | 716 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 64); |
5badf10a IR |
717 | append_flags_type_flag (type, 0, "NXC"); |
718 | append_flags_type_flag (type, 1, "DZC"); | |
719 | append_flags_type_flag (type, 2, "UFC"); | |
720 | append_flags_type_flag (type, 3, "OFC"); | |
721 | append_flags_type_flag (type, 4, "NVC"); | |
722 | append_flags_type_flag (type, 5, "NXA"); | |
723 | append_flags_type_flag (type, 6, "DZA"); | |
724 | append_flags_type_flag (type, 7, "UFA"); | |
725 | append_flags_type_flag (type, 8, "OFA"); | |
726 | append_flags_type_flag (type, 9, "NVA"); | |
209bd28e UW |
727 | append_flags_type_flag (type, 22, "NS"); |
728 | append_flags_type_flag (type, 23, "NXM"); | |
729 | append_flags_type_flag (type, 24, "DZM"); | |
730 | append_flags_type_flag (type, 25, "UFM"); | |
731 | append_flags_type_flag (type, 26, "OFM"); | |
732 | append_flags_type_flag (type, 27, "NVM"); | |
733 | ||
734 | tdep->sparc64_fsr_type = type; | |
735 | } | |
736 | ||
737 | return tdep->sparc64_fsr_type; | |
738 | } | |
739 | ||
740 | static struct type * | |
741 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 742 | { |
209bd28e UW |
743 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
744 | ||
745 | if (!tdep->sparc64_fprs_type) | |
746 | { | |
747 | struct type *type; | |
748 | ||
77b7c781 | 749 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 64); |
209bd28e UW |
750 | append_flags_type_flag (type, 0, "DL"); |
751 | append_flags_type_flag (type, 1, "DU"); | |
752 | append_flags_type_flag (type, 2, "FEF"); | |
753 | ||
754 | tdep->sparc64_fprs_type = type; | |
755 | } | |
756 | ||
757 | return tdep->sparc64_fprs_type; | |
fd936806 | 758 | } |
8b39fe56 | 759 | |
209bd28e | 760 | |
8b39fe56 | 761 | /* Register information. */ |
7a36499a IR |
762 | #define SPARC64_FPU_REGISTERS \ |
763 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
764 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
765 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
766 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
767 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \ | |
768 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62" | |
769 | #define SPARC64_CP0_REGISTERS \ | |
770 | "pc", "npc", \ | |
771 | /* FIXME: Give "state" a name until we start using register groups. */ \ | |
772 | "state", \ | |
773 | "fsr", \ | |
774 | "fprs", \ | |
775 | "y" | |
8b39fe56 | 776 | |
3f7b46f2 IR |
777 | static const char *sparc64_fpu_register_names[] = { SPARC64_FPU_REGISTERS }; |
778 | static const char *sparc64_cp0_register_names[] = { SPARC64_CP0_REGISTERS }; | |
779 | ||
6707b003 | 780 | static const char *sparc64_register_names[] = |
8b39fe56 | 781 | { |
7a36499a IR |
782 | SPARC_CORE_REGISTERS, |
783 | SPARC64_FPU_REGISTERS, | |
784 | SPARC64_CP0_REGISTERS | |
8b39fe56 MK |
785 | }; |
786 | ||
787 | /* Total number of registers. */ | |
6707b003 | 788 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
789 | |
790 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
791 | registers as "psuedo" registers. */ | |
792 | ||
6707b003 | 793 | static const char *sparc64_pseudo_register_names[] = |
8b39fe56 | 794 | { |
6707b003 UW |
795 | "cwp", "pstate", "asi", "ccr", |
796 | ||
797 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
798 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
799 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
800 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
801 | ||
802 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
803 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
804 | }; |
805 | ||
806 | /* Total number of pseudo registers. */ | |
6707b003 | 807 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 | 808 | |
7a36499a IR |
809 | /* Return the name of pseudo register REGNUM. */ |
810 | ||
811 | static const char * | |
812 | sparc64_pseudo_register_name (struct gdbarch *gdbarch, int regnum) | |
813 | { | |
814 | regnum -= gdbarch_num_regs (gdbarch); | |
815 | ||
816 | if (regnum < SPARC64_NUM_PSEUDO_REGS) | |
817 | return sparc64_pseudo_register_names[regnum]; | |
818 | ||
819 | internal_error (__FILE__, __LINE__, | |
820 | _("sparc64_pseudo_register_name: bad register number %d"), | |
821 | regnum); | |
822 | } | |
823 | ||
8b39fe56 MK |
824 | /* Return the name of register REGNUM. */ |
825 | ||
826 | static const char * | |
d93859e2 | 827 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 | 828 | { |
3f7b46f2 IR |
829 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
830 | return tdesc_register_name (gdbarch, regnum); | |
831 | ||
7a36499a | 832 | if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) |
6707b003 | 833 | return sparc64_register_names[regnum]; |
8b39fe56 | 834 | |
7a36499a IR |
835 | return sparc64_pseudo_register_name (gdbarch, regnum); |
836 | } | |
837 | ||
838 | /* Return the GDB type object for the "standard" data type of data in | |
839 | pseudo register REGNUM. */ | |
840 | ||
841 | static struct type * | |
842 | sparc64_pseudo_register_type (struct gdbarch *gdbarch, int regnum) | |
843 | { | |
844 | regnum -= gdbarch_num_regs (gdbarch); | |
845 | ||
846 | if (regnum == SPARC64_CWP_REGNUM) | |
847 | return builtin_type (gdbarch)->builtin_int64; | |
848 | if (regnum == SPARC64_PSTATE_REGNUM) | |
849 | return sparc64_pstate_type (gdbarch); | |
850 | if (regnum == SPARC64_ASI_REGNUM) | |
851 | return builtin_type (gdbarch)->builtin_int64; | |
852 | if (regnum == SPARC64_CCR_REGNUM) | |
5badf10a | 853 | return sparc64_ccr_type (gdbarch); |
7a36499a IR |
854 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) |
855 | return builtin_type (gdbarch)->builtin_double; | |
856 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
857 | return builtin_type (gdbarch)->builtin_long_double; | |
8b39fe56 | 858 | |
7a36499a IR |
859 | internal_error (__FILE__, __LINE__, |
860 | _("sparc64_pseudo_register_type: bad register number %d"), | |
861 | regnum); | |
8b39fe56 MK |
862 | } |
863 | ||
864 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 865 | register REGNUM. */ |
8b39fe56 MK |
866 | |
867 | static struct type * | |
868 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
869 | { | |
3f7b46f2 IR |
870 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
871 | return tdesc_register_type (gdbarch, regnum); | |
872 | ||
6707b003 | 873 | /* Raw registers. */ |
6707b003 | 874 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) |
0dfff4cb | 875 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 876 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 877 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 878 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 879 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 880 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 881 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 882 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 883 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
884 | /* This raw register contains the contents of %cwp, %pstate, %asi |
885 | and %ccr as laid out in a %tstate register. */ | |
886 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 887 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 888 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 889 | return sparc64_fsr_type (gdbarch); |
6707b003 | 890 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 891 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
892 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
893 | reserved and always read as 0." */ | |
894 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 895 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
896 | |
897 | /* Pseudo registers. */ | |
7a36499a IR |
898 | if (regnum >= gdbarch_num_regs (gdbarch)) |
899 | return sparc64_pseudo_register_type (gdbarch, regnum); | |
6707b003 UW |
900 | |
901 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
902 | } |
903 | ||
05d1431c | 904 | static enum register_status |
8b39fe56 MK |
905 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
906 | struct regcache *regcache, | |
e1613aba | 907 | int regnum, gdb_byte *buf) |
8b39fe56 | 908 | { |
e17a4113 | 909 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
910 | enum register_status status; |
911 | ||
7a36499a | 912 | regnum -= gdbarch_num_regs (gdbarch); |
8b39fe56 MK |
913 | |
914 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
915 | { | |
916 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
05d1431c PA |
917 | status = regcache_raw_read (regcache, regnum, buf); |
918 | if (status == REG_VALID) | |
919 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
920 | return status; | |
8b39fe56 MK |
921 | } |
922 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
923 | { | |
924 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
05d1431c | 925 | return regcache_raw_read (regcache, regnum, buf); |
8b39fe56 MK |
926 | } |
927 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
928 | { | |
929 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c PA |
930 | |
931 | status = regcache_raw_read (regcache, regnum, buf); | |
932 | if (status == REG_VALID) | |
933 | status = regcache_raw_read (regcache, regnum + 1, buf + 4); | |
934 | if (status == REG_VALID) | |
935 | status = regcache_raw_read (regcache, regnum + 2, buf + 8); | |
936 | if (status == REG_VALID) | |
937 | status = regcache_raw_read (regcache, regnum + 3, buf + 12); | |
938 | ||
939 | return status; | |
8b39fe56 MK |
940 | } |
941 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
942 | { | |
943 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c PA |
944 | |
945 | status = regcache_raw_read (regcache, regnum, buf); | |
946 | if (status == REG_VALID) | |
947 | status = regcache_raw_read (regcache, regnum + 1, buf + 8); | |
948 | ||
949 | return status; | |
8b39fe56 MK |
950 | } |
951 | else if (regnum == SPARC64_CWP_REGNUM | |
952 | || regnum == SPARC64_PSTATE_REGNUM | |
953 | || regnum == SPARC64_ASI_REGNUM | |
954 | || regnum == SPARC64_CCR_REGNUM) | |
955 | { | |
956 | ULONGEST state; | |
957 | ||
05d1431c PA |
958 | status = regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); |
959 | if (status != REG_VALID) | |
960 | return status; | |
961 | ||
8b39fe56 MK |
962 | switch (regnum) |
963 | { | |
3567a8ea | 964 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
965 | state = (state >> 0) & ((1 << 5) - 1); |
966 | break; | |
3567a8ea | 967 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
968 | state = (state >> 8) & ((1 << 12) - 1); |
969 | break; | |
3567a8ea | 970 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
971 | state = (state >> 24) & ((1 << 8) - 1); |
972 | break; | |
3567a8ea | 973 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
974 | state = (state >> 32) & ((1 << 8) - 1); |
975 | break; | |
976 | } | |
e17a4113 | 977 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 978 | } |
05d1431c PA |
979 | |
980 | return REG_VALID; | |
8b39fe56 MK |
981 | } |
982 | ||
983 | static void | |
984 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
985 | struct regcache *regcache, | |
e1613aba | 986 | int regnum, const gdb_byte *buf) |
8b39fe56 | 987 | { |
e17a4113 | 988 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
7a36499a IR |
989 | |
990 | regnum -= gdbarch_num_regs (gdbarch); | |
8b39fe56 MK |
991 | |
992 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
993 | { | |
994 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
995 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 996 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
8b39fe56 MK |
997 | } |
998 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
999 | { | |
1000 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
1001 | regcache_raw_write (regcache, regnum, buf); | |
1002 | } | |
1003 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
1004 | { | |
1005 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
1006 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba MK |
1007 | regcache_raw_write (regcache, regnum + 1, buf + 4); |
1008 | regcache_raw_write (regcache, regnum + 2, buf + 8); | |
1009 | regcache_raw_write (regcache, regnum + 3, buf + 12); | |
8b39fe56 MK |
1010 | } |
1011 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
1012 | { | |
1013 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
1014 | regcache_raw_write (regcache, regnum, buf); | |
e1613aba | 1015 | regcache_raw_write (regcache, regnum + 1, buf + 8); |
8b39fe56 | 1016 | } |
3567a8ea MK |
1017 | else if (regnum == SPARC64_CWP_REGNUM |
1018 | || regnum == SPARC64_PSTATE_REGNUM | |
1019 | || regnum == SPARC64_ASI_REGNUM | |
1020 | || regnum == SPARC64_CCR_REGNUM) | |
1021 | { | |
1022 | ULONGEST state, bits; | |
1023 | ||
1024 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 1025 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
1026 | switch (regnum) |
1027 | { | |
1028 | case SPARC64_CWP_REGNUM: | |
1029 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
1030 | break; | |
1031 | case SPARC64_PSTATE_REGNUM: | |
1032 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
1033 | break; | |
1034 | case SPARC64_ASI_REGNUM: | |
1035 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
1036 | break; | |
1037 | case SPARC64_CCR_REGNUM: | |
1038 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
1039 | break; | |
1040 | } | |
1041 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
1042 | } | |
8b39fe56 | 1043 | } |
8b39fe56 MK |
1044 | \f |
1045 | ||
8b39fe56 MK |
1046 | /* Return PC of first real instruction of the function starting at |
1047 | START_PC. */ | |
1048 | ||
1049 | static CORE_ADDR | |
6093d2eb | 1050 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
1051 | { |
1052 | struct symtab_and_line sal; | |
1053 | CORE_ADDR func_start, func_end; | |
386c036b | 1054 | struct sparc_frame_cache cache; |
8b39fe56 MK |
1055 | |
1056 | /* This is the preferred method, find the end of the prologue by | |
1057 | using the debugging information. */ | |
1058 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
1059 | { | |
1060 | sal = find_pc_line (func_start, 0); | |
1061 | ||
1062 | if (sal.end < func_end | |
1063 | && start_pc <= sal.end) | |
1064 | return sal.end; | |
1065 | } | |
1066 | ||
be8626e0 MD |
1067 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
1068 | &cache); | |
8b39fe56 MK |
1069 | } |
1070 | ||
1071 | /* Normal frames. */ | |
1072 | ||
386c036b | 1073 | static struct sparc_frame_cache * |
236369e7 | 1074 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 1075 | { |
236369e7 | 1076 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1077 | } |
1078 | ||
1079 | static void | |
236369e7 | 1080 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
1081 | struct frame_id *this_id) |
1082 | { | |
386c036b | 1083 | struct sparc_frame_cache *cache = |
236369e7 | 1084 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1085 | |
1086 | /* This marks the outermost frame. */ | |
1087 | if (cache->base == 0) | |
1088 | return; | |
1089 | ||
1090 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
1091 | } | |
1092 | ||
236369e7 JB |
1093 | static struct value * |
1094 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
1095 | int regnum) | |
8b39fe56 | 1096 | { |
e17a4113 | 1097 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 1098 | struct sparc_frame_cache *cache = |
236369e7 | 1099 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1100 | |
1101 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
1102 | { | |
236369e7 | 1103 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 1104 | |
369c397b JB |
1105 | regnum = |
1106 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
1107 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
1108 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
1109 | } |
1110 | ||
f700a364 MK |
1111 | /* Handle StackGhost. */ |
1112 | { | |
e17a4113 | 1113 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
1114 | |
1115 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
1116 | { | |
236369e7 JB |
1117 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
1118 | ULONGEST i7; | |
1119 | ||
1120 | /* Read the value in from memory. */ | |
1121 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
1122 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
1123 | } |
1124 | } | |
1125 | ||
369c397b | 1126 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 1127 | in the register save area. */ |
369c397b JB |
1128 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
1129 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 1130 | { |
236369e7 | 1131 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 1132 | |
236369e7 | 1133 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
1134 | } |
1135 | ||
369c397b JB |
1136 | /* The previous frame's `out' registers may be accessible as the current |
1137 | frame's `in' registers. */ | |
1138 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
1139 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
1140 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
1141 | ||
236369e7 | 1142 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
1143 | } |
1144 | ||
1145 | static const struct frame_unwind sparc64_frame_unwind = | |
1146 | { | |
1147 | NORMAL_FRAME, | |
8fbca658 | 1148 | default_frame_unwind_stop_reason, |
8b39fe56 | 1149 | sparc64_frame_this_id, |
236369e7 JB |
1150 | sparc64_frame_prev_register, |
1151 | NULL, | |
1152 | default_frame_sniffer | |
8b39fe56 | 1153 | }; |
8b39fe56 MK |
1154 | \f |
1155 | ||
1156 | static CORE_ADDR | |
236369e7 | 1157 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 1158 | { |
386c036b | 1159 | struct sparc_frame_cache *cache = |
236369e7 | 1160 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 1161 | |
5b2d44a0 | 1162 | return cache->base; |
8b39fe56 MK |
1163 | } |
1164 | ||
1165 | static const struct frame_base sparc64_frame_base = | |
1166 | { | |
1167 | &sparc64_frame_unwind, | |
1168 | sparc64_frame_base_address, | |
1169 | sparc64_frame_base_address, | |
1170 | sparc64_frame_base_address | |
1171 | }; | |
8b39fe56 MK |
1172 | \f |
1173 | /* Check whether TYPE must be 16-byte aligned. */ | |
1174 | ||
1175 | static int | |
1176 | sparc64_16_byte_align_p (struct type *type) | |
1177 | { | |
1933fd8e VM |
1178 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1179 | { | |
1180 | struct type *t = check_typedef (TYPE_TARGET_TYPE (type)); | |
1181 | ||
1182 | if (sparc64_floating_p (t)) | |
1183 | return 1; | |
1184 | } | |
8b39fe56 MK |
1185 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) |
1186 | return 1; | |
1187 | ||
1188 | if (sparc64_structure_or_union_p (type)) | |
1189 | { | |
1190 | int i; | |
1191 | ||
1192 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
1193 | { |
1194 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
1195 | ||
1196 | if (sparc64_16_byte_align_p (subtype)) | |
1197 | return 1; | |
1198 | } | |
8b39fe56 MK |
1199 | } |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
1204 | /* Store floating fields of element ELEMENT of an "parameter array" | |
1205 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
1206 | apropriate registers of REGCACHE. This function can be called | |
1207 | recursively and therefore handles floating types in addition to | |
1208 | structures. */ | |
1209 | ||
1210 | static void | |
1211 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1212 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 | 1213 | { |
7a36499a | 1214 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
fe10a582 DM |
1215 | int len = TYPE_LENGTH (type); |
1216 | ||
8b39fe56 MK |
1217 | gdb_assert (element < 16); |
1218 | ||
1933fd8e VM |
1219 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1220 | { | |
1221 | gdb_byte buf[8]; | |
1222 | int regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
1223 | ||
1224 | valbuf += bitpos / 8; | |
1225 | if (len < 8) | |
1226 | { | |
1227 | memset (buf, 0, 8 - len); | |
1228 | memcpy (buf + 8 - len, valbuf, len); | |
1229 | valbuf = buf; | |
1230 | len = 8; | |
1231 | } | |
1232 | for (int n = 0; n < (len + 3) / 4; n++) | |
1233 | regcache_cooked_write (regcache, regnum + n, valbuf + n * 4); | |
1234 | } | |
1235 | else if (sparc64_floating_p (type) | |
fe10a582 | 1236 | || (sparc64_complex_floating_p (type) && len <= 16)) |
8b39fe56 | 1237 | { |
8b39fe56 MK |
1238 | int regnum; |
1239 | ||
1240 | if (len == 16) | |
1241 | { | |
1242 | gdb_assert (bitpos == 0); | |
1243 | gdb_assert ((element % 2) == 0); | |
1244 | ||
7a36499a | 1245 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM + element / 2; |
8b39fe56 MK |
1246 | regcache_cooked_write (regcache, regnum, valbuf); |
1247 | } | |
1248 | else if (len == 8) | |
1249 | { | |
1250 | gdb_assert (bitpos == 0 || bitpos == 64); | |
1251 | ||
7a36499a IR |
1252 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
1253 | + element + bitpos / 64; | |
8b39fe56 MK |
1254 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); |
1255 | } | |
1256 | else | |
1257 | { | |
1258 | gdb_assert (len == 4); | |
1259 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
1260 | ||
1261 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
1262 | regcache_cooked_write (regcache, regnum, valbuf + (bitpos / 8)); | |
1263 | } | |
1264 | } | |
1265 | else if (sparc64_structure_or_union_p (type)) | |
1266 | { | |
1267 | int i; | |
1268 | ||
1269 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
1270 | { |
1271 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
1272 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
1273 | ||
1274 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
1275 | element, subpos); | |
1276 | } | |
200cc553 MK |
1277 | |
1278 | /* GCC has an interesting bug. If TYPE is a structure that has | |
1279 | a single `float' member, GCC doesn't treat it as a structure | |
1280 | at all, but rather as an ordinary `float' argument. This | |
1281 | argument will be stored in %f1, as required by the psABI. | |
1282 | However, as a member of a structure the psABI requires it to | |
5154b0cd MK |
1283 | be stored in %f0. This bug is present in GCC 3.3.2, but |
1284 | probably in older releases to. To appease GCC, if a | |
1285 | structure has only a single `float' member, we store its | |
1286 | value in %f1 too (we already have stored in %f0). */ | |
200cc553 MK |
1287 | if (TYPE_NFIELDS (type) == 1) |
1288 | { | |
1289 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, 0)); | |
1290 | ||
1291 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
1292 | regcache_cooked_write (regcache, SPARC_F1_REGNUM, valbuf); | |
1293 | } | |
8b39fe56 MK |
1294 | } |
1295 | } | |
1296 | ||
1297 | /* Fetch floating fields from a variable of type TYPE from the | |
1298 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
1299 | in VALBUF. This function can be called recursively and therefore | |
1300 | handles floating types in addition to structures. */ | |
1301 | ||
1302 | static void | |
1303 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1304 | gdb_byte *valbuf, int bitpos) |
8b39fe56 | 1305 | { |
7a36499a IR |
1306 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1307 | ||
1933fd8e VM |
1308 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1309 | { | |
1310 | int len = TYPE_LENGTH (type); | |
1311 | int regnum = SPARC_F0_REGNUM + bitpos / 32; | |
1312 | ||
1313 | valbuf += bitpos / 8; | |
1314 | if (len < 4) | |
1315 | { | |
1316 | gdb_byte buf[4]; | |
1317 | regcache_cooked_read (regcache, regnum, buf); | |
1318 | memcpy (valbuf, buf + 4 - len, len); | |
1319 | } | |
1320 | else | |
1321 | for (int i = 0; i < (len + 3) / 4; i++) | |
1322 | regcache_cooked_read (regcache, regnum + i, valbuf + i * 4); | |
1323 | } | |
1324 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1325 | { |
1326 | int len = TYPE_LENGTH (type); | |
1327 | int regnum; | |
1328 | ||
1329 | if (len == 16) | |
1330 | { | |
1331 | gdb_assert (bitpos == 0 || bitpos == 128); | |
1332 | ||
7a36499a IR |
1333 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
1334 | + bitpos / 128; | |
8b39fe56 MK |
1335 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
1336 | } | |
1337 | else if (len == 8) | |
1338 | { | |
1339 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
1340 | ||
7a36499a | 1341 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + bitpos / 64; |
8b39fe56 MK |
1342 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); |
1343 | } | |
1344 | else | |
1345 | { | |
1346 | gdb_assert (len == 4); | |
1347 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
1348 | ||
1349 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
1350 | regcache_cooked_read (regcache, regnum, valbuf + (bitpos / 8)); | |
1351 | } | |
1352 | } | |
1353 | else if (sparc64_structure_or_union_p (type)) | |
1354 | { | |
1355 | int i; | |
1356 | ||
1357 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
60af1db2 MK |
1358 | { |
1359 | struct type *subtype = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
1360 | int subpos = bitpos + TYPE_FIELD_BITPOS (type, i); | |
1361 | ||
1362 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
1363 | } | |
8b39fe56 MK |
1364 | } |
1365 | } | |
1366 | ||
1367 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
1368 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
1369 | ||
1370 | static CORE_ADDR | |
1371 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
1372 | struct value **args, CORE_ADDR sp, | |
1373 | int struct_return, CORE_ADDR struct_addr) | |
1374 | { | |
df4df182 | 1375 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
8b39fe56 MK |
1376 | /* Number of extended words in the "parameter array". */ |
1377 | int num_elements = 0; | |
1378 | int element = 0; | |
1379 | int i; | |
1380 | ||
1381 | /* Take BIAS into account. */ | |
1382 | sp += BIAS; | |
1383 | ||
1384 | /* First we calculate the number of extended words in the "parameter | |
1385 | array". While doing so we also convert some of the arguments. */ | |
1386 | ||
1387 | if (struct_return) | |
1388 | num_elements++; | |
1389 | ||
1390 | for (i = 0; i < nargs; i++) | |
1391 | { | |
4991999e | 1392 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
1393 | int len = TYPE_LENGTH (type); |
1394 | ||
fb57d452 MK |
1395 | if (sparc64_structure_or_union_p (type) |
1396 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 MK |
1397 | { |
1398 | /* Structure or Union arguments. */ | |
1399 | if (len <= 16) | |
1400 | { | |
1401 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
1402 | num_elements++; | |
1403 | num_elements += ((len + 7) / 8); | |
1404 | } | |
1405 | else | |
1406 | { | |
1407 | /* The psABI says that "Structures or unions larger than | |
1408 | sixteen bytes are copied by the caller and passed | |
1409 | indirectly; the caller will pass the address of a | |
1410 | correctly aligned structure value. This sixty-four | |
1411 | bit address will occupy one word in the parameter | |
1412 | array, and may be promoted to an %o register like any | |
1413 | other pointer value." Allocate memory for these | |
1414 | values on the stack. */ | |
1415 | sp -= len; | |
1416 | ||
1417 | /* Use 16-byte alignment for these values. That's | |
1418 | always correct, and wasting a few bytes shouldn't be | |
1419 | a problem. */ | |
1420 | sp &= ~0xf; | |
1421 | ||
0fd88904 | 1422 | write_memory (sp, value_contents (args[i]), len); |
8b39fe56 MK |
1423 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
1424 | num_elements++; | |
1425 | } | |
1426 | } | |
cdc7b32f | 1427 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1428 | { |
1429 | /* Floating arguments. */ | |
8b39fe56 MK |
1430 | if (len == 16) |
1431 | { | |
1432 | /* The psABI says that "Each quad-precision parameter | |
1433 | value will be assigned to two extended words in the | |
1434 | parameter array. */ | |
1435 | num_elements += 2; | |
1436 | ||
1437 | /* The psABI says that "Long doubles must be | |
1438 | quad-aligned, and thus a hole might be introduced | |
1439 | into the parameter array to force alignment." Skip | |
1440 | an element if necessary. */ | |
49caec94 | 1441 | if ((num_elements % 2) && sparc64_16_byte_align_p (type)) |
8b39fe56 MK |
1442 | num_elements++; |
1443 | } | |
1444 | else | |
1445 | num_elements++; | |
1446 | } | |
1447 | else | |
1448 | { | |
1449 | /* Integral and pointer arguments. */ | |
1450 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1451 | ||
1452 | /* The psABI says that "Each argument value of integral type | |
1453 | smaller than an extended word will be widened by the | |
1454 | caller to an extended word according to the signed-ness | |
1455 | of the argument type." */ | |
1456 | if (len < 8) | |
df4df182 UW |
1457 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
1458 | args[i]); | |
8b39fe56 MK |
1459 | num_elements++; |
1460 | } | |
1461 | } | |
1462 | ||
1463 | /* Allocate the "parameter array". */ | |
1464 | sp -= num_elements * 8; | |
1465 | ||
1466 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
1467 | sp &= ~0xf; | |
1468 | ||
1469 | /* Now we store the arguments in to the "paramater array". Some | |
1470 | Integer or Pointer arguments and Structure or Union arguments | |
1471 | will be passed in %o registers. Some Floating arguments and | |
1472 | floating members of structures are passed in floating-point | |
1473 | registers. However, for functions with variable arguments, | |
1474 | floating arguments are stored in an %0 register, and for | |
1475 | functions without a prototype floating arguments are stored in | |
1476 | both a floating-point and an %o registers, or a floating-point | |
1477 | register and memory. To simplify the logic here we always pass | |
1478 | arguments in memory, an %o register, and a floating-point | |
1479 | register if appropriate. This should be no problem since the | |
1480 | contents of any unused memory or registers in the "parameter | |
1481 | array" are undefined. */ | |
1482 | ||
1483 | if (struct_return) | |
1484 | { | |
1485 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
1486 | element++; | |
1487 | } | |
1488 | ||
1489 | for (i = 0; i < nargs; i++) | |
1490 | { | |
e1613aba | 1491 | const gdb_byte *valbuf = value_contents (args[i]); |
4991999e | 1492 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
1493 | int len = TYPE_LENGTH (type); |
1494 | int regnum = -1; | |
e1613aba | 1495 | gdb_byte buf[16]; |
8b39fe56 | 1496 | |
fb57d452 MK |
1497 | if (sparc64_structure_or_union_p (type) |
1498 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 | 1499 | { |
49caec94 | 1500 | /* Structure, Union or long double Complex arguments. */ |
8b39fe56 MK |
1501 | gdb_assert (len <= 16); |
1502 | memset (buf, 0, sizeof (buf)); | |
cfcb22a5 SM |
1503 | memcpy (buf, valbuf, len); |
1504 | valbuf = buf; | |
8b39fe56 MK |
1505 | |
1506 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
1507 | element++; | |
1508 | ||
1509 | if (element < 6) | |
1510 | { | |
1511 | regnum = SPARC_O0_REGNUM + element; | |
1512 | if (len > 8 && element < 5) | |
1513 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
1514 | } | |
1515 | ||
1516 | if (element < 16) | |
1517 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
1518 | } | |
49caec94 JM |
1519 | else if (sparc64_complex_floating_p (type)) |
1520 | { | |
1521 | /* Float Complex or double Complex arguments. */ | |
1522 | if (element < 16) | |
1523 | { | |
7a36499a | 1524 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + element; |
49caec94 JM |
1525 | |
1526 | if (len == 16) | |
1527 | { | |
7a36499a | 1528 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D30_REGNUM) |
49caec94 | 1529 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); |
7a36499a | 1530 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D10_REGNUM) |
49caec94 JM |
1531 | regcache_cooked_write (regcache, |
1532 | SPARC_O0_REGNUM + element + 1, | |
1533 | valbuf + 8); | |
1534 | } | |
1535 | } | |
1536 | } | |
1537 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1538 | { |
1539 | /* Floating arguments. */ | |
1540 | if (len == 16) | |
1541 | { | |
1542 | if (element % 2) | |
1543 | element++; | |
1544 | if (element < 16) | |
7a36499a IR |
1545 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
1546 | + element / 2; | |
8b39fe56 MK |
1547 | } |
1548 | else if (len == 8) | |
1549 | { | |
1550 | if (element < 16) | |
7a36499a IR |
1551 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
1552 | + element; | |
8b39fe56 | 1553 | } |
fe10a582 | 1554 | else if (len == 4) |
8b39fe56 MK |
1555 | { |
1556 | /* The psABI says "Each single-precision parameter value | |
1557 | will be assigned to one extended word in the | |
1558 | parameter array, and right-justified within that | |
cdc7b32f | 1559 | word; the left half (even float register) is |
8b39fe56 MK |
1560 | undefined." Even though the psABI says that "the |
1561 | left half is undefined", set it to zero here. */ | |
1562 | memset (buf, 0, 4); | |
8ada74e3 MK |
1563 | memcpy (buf + 4, valbuf, 4); |
1564 | valbuf = buf; | |
8b39fe56 MK |
1565 | len = 8; |
1566 | if (element < 16) | |
7a36499a IR |
1567 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
1568 | + element; | |
8b39fe56 MK |
1569 | } |
1570 | } | |
1571 | else | |
1572 | { | |
1573 | /* Integral and pointer arguments. */ | |
1574 | gdb_assert (len == 8); | |
1575 | if (element < 6) | |
1576 | regnum = SPARC_O0_REGNUM + element; | |
1577 | } | |
1578 | ||
1579 | if (regnum != -1) | |
1580 | { | |
1581 | regcache_cooked_write (regcache, regnum, valbuf); | |
1582 | ||
1583 | /* If we're storing the value in a floating-point register, | |
1584 | also store it in the corresponding %0 register(s). */ | |
7a36499a IR |
1585 | if (regnum >= gdbarch_num_regs (gdbarch)) |
1586 | { | |
1587 | regnum -= gdbarch_num_regs (gdbarch); | |
1588 | ||
1589 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
1590 | { | |
1591 | gdb_assert (element < 6); | |
1592 | regnum = SPARC_O0_REGNUM + element; | |
1593 | regcache_cooked_write (regcache, regnum, valbuf); | |
1594 | } | |
1595 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
1596 | { | |
1597 | gdb_assert (element < 5); | |
1598 | regnum = SPARC_O0_REGNUM + element; | |
1599 | regcache_cooked_write (regcache, regnum, valbuf); | |
1600 | regcache_cooked_write (regcache, regnum + 1, valbuf + 8); | |
1601 | } | |
1602 | } | |
8b39fe56 MK |
1603 | } |
1604 | ||
c4f2d4d7 | 1605 | /* Always store the argument in memory. */ |
8b39fe56 MK |
1606 | write_memory (sp + element * 8, valbuf, len); |
1607 | element += ((len + 7) / 8); | |
1608 | } | |
1609 | ||
1610 | gdb_assert (element == num_elements); | |
1611 | ||
1612 | /* Take BIAS into account. */ | |
1613 | sp -= BIAS; | |
1614 | return sp; | |
1615 | } | |
1616 | ||
49a45ecf JB |
1617 | static CORE_ADDR |
1618 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
1619 | { | |
1620 | /* The ABI requires 16-byte alignment. */ | |
1621 | return address & ~0xf; | |
1622 | } | |
1623 | ||
8b39fe56 | 1624 | static CORE_ADDR |
7d9b040b | 1625 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
1626 | struct regcache *regcache, CORE_ADDR bp_addr, |
1627 | int nargs, struct value **args, CORE_ADDR sp, | |
1628 | int struct_return, CORE_ADDR struct_addr) | |
1629 | { | |
1630 | /* Set return address. */ | |
1631 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
1632 | ||
1633 | /* Set up function arguments. */ | |
1634 | sp = sparc64_store_arguments (regcache, nargs, args, sp, | |
1635 | struct_return, struct_addr); | |
1636 | ||
1637 | /* Allocate the register save area. */ | |
1638 | sp -= 16 * 8; | |
1639 | ||
1640 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 1641 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
1642 | |
1643 | /* Finally, update the stack pointer. */ | |
1644 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
1645 | ||
5b2d44a0 | 1646 | return sp + BIAS; |
8b39fe56 MK |
1647 | } |
1648 | \f | |
1649 | ||
1650 | /* Extract from an array REGBUF containing the (raw) register state, a | |
1651 | function return value of TYPE, and copy that into VALBUF. */ | |
1652 | ||
1653 | static void | |
1654 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1655 | gdb_byte *valbuf) |
8b39fe56 MK |
1656 | { |
1657 | int len = TYPE_LENGTH (type); | |
e1613aba | 1658 | gdb_byte buf[32]; |
8b39fe56 MK |
1659 | int i; |
1660 | ||
1661 | if (sparc64_structure_or_union_p (type)) | |
1662 | { | |
1663 | /* Structure or Union return values. */ | |
1664 | gdb_assert (len <= 32); | |
1665 | ||
1666 | for (i = 0; i < ((len + 7) / 8); i++) | |
1667 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1668 | if (TYPE_CODE (type) != TYPE_CODE_UNION) | |
1669 | sparc64_extract_floating_fields (regcache, type, buf, 0); | |
1670 | memcpy (valbuf, buf, len); | |
1671 | } | |
cdc7b32f | 1672 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1673 | { |
1674 | /* Floating return values. */ | |
1675 | for (i = 0; i < len / 4; i++) | |
1676 | regcache_cooked_read (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1677 | memcpy (valbuf, buf, len); | |
1678 | } | |
4bd87714 JB |
1679 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1680 | { | |
1681 | /* Small arrays are returned the same way as small structures. */ | |
1682 | gdb_assert (len <= 32); | |
1683 | ||
1684 | for (i = 0; i < ((len + 7) / 8); i++) | |
1685 | regcache_cooked_read (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1686 | memcpy (valbuf, buf, len); | |
1687 | } | |
8b39fe56 MK |
1688 | else |
1689 | { | |
1690 | /* Integral and pointer return values. */ | |
1691 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1692 | ||
1693 | /* Just stripping off any unused bytes should preserve the | |
1694 | signed-ness just fine. */ | |
1695 | regcache_cooked_read (regcache, SPARC_O0_REGNUM, buf); | |
1696 | memcpy (valbuf, buf + 8 - len, len); | |
1697 | } | |
1698 | } | |
1699 | ||
1700 | /* Write into the appropriate registers a function return value stored | |
1701 | in VALBUF of type TYPE. */ | |
1702 | ||
1703 | static void | |
1704 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1705 | const gdb_byte *valbuf) |
8b39fe56 MK |
1706 | { |
1707 | int len = TYPE_LENGTH (type); | |
e1613aba | 1708 | gdb_byte buf[16]; |
8b39fe56 MK |
1709 | int i; |
1710 | ||
1711 | if (sparc64_structure_or_union_p (type)) | |
1712 | { | |
1713 | /* Structure or Union return values. */ | |
1714 | gdb_assert (len <= 32); | |
1715 | ||
1716 | /* Simplify matters by storing the complete value (including | |
1717 | floating members) into %o0 and %o1. Floating members are | |
1718 | also store in the appropriate floating-point registers. */ | |
1719 | memset (buf, 0, sizeof (buf)); | |
1720 | memcpy (buf, valbuf, len); | |
1721 | for (i = 0; i < ((len + 7) / 8); i++) | |
60af1db2 | 1722 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); |
8b39fe56 MK |
1723 | if (TYPE_CODE (type) != TYPE_CODE_UNION) |
1724 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); | |
1725 | } | |
fe10a582 | 1726 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1727 | { |
1728 | /* Floating return values. */ | |
1729 | memcpy (buf, valbuf, len); | |
1730 | for (i = 0; i < len / 4; i++) | |
1731 | regcache_cooked_write (regcache, SPARC_F0_REGNUM + i, buf + i * 4); | |
1732 | } | |
4bd87714 JB |
1733 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY) |
1734 | { | |
1735 | /* Small arrays are returned the same way as small structures. */ | |
1736 | gdb_assert (len <= 32); | |
1737 | ||
1738 | memset (buf, 0, sizeof (buf)); | |
1739 | memcpy (buf, valbuf, len); | |
1740 | for (i = 0; i < ((len + 7) / 8); i++) | |
1741 | regcache_cooked_write (regcache, SPARC_O0_REGNUM + i, buf + i * 8); | |
1742 | } | |
8b39fe56 MK |
1743 | else |
1744 | { | |
1745 | /* Integral and pointer return values. */ | |
1746 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1747 | ||
1748 | /* ??? Do we need to do any sign-extension here? */ | |
1749 | memset (buf, 0, 8); | |
1750 | memcpy (buf + 8 - len, valbuf, len); | |
1751 | regcache_cooked_write (regcache, SPARC_O0_REGNUM, buf); | |
1752 | } | |
1753 | } | |
1754 | ||
60af1db2 | 1755 | static enum return_value_convention |
6a3a010b | 1756 | sparc64_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
1757 | struct type *type, struct regcache *regcache, |
1758 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1759 | { |
60af1db2 MK |
1760 | if (TYPE_LENGTH (type) > 32) |
1761 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1762 | ||
1763 | if (readbuf) | |
1764 | sparc64_extract_return_value (type, regcache, readbuf); | |
1765 | if (writebuf) | |
1766 | sparc64_store_return_value (type, regcache, writebuf); | |
1767 | ||
1768 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1769 | } |
8b39fe56 | 1770 | \f |
8b39fe56 | 1771 | |
02a71ae8 MK |
1772 | static void |
1773 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1774 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1775 | struct frame_info *this_frame) |
02a71ae8 MK |
1776 | { |
1777 | switch (regnum) | |
1778 | { | |
1779 | case SPARC_G0_REGNUM: | |
1780 | /* Since %g0 is always zero, there is no point in saving it, and | |
1781 | people will be inclined omit it from the CFI. Make sure we | |
1782 | don't warn about that. */ | |
1783 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1784 | break; | |
1785 | case SPARC_SP_REGNUM: | |
1786 | reg->how = DWARF2_FRAME_REG_CFA; | |
1787 | break; | |
1788 | case SPARC64_PC_REGNUM: | |
1789 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1790 | reg->loc.offset = 8; | |
1791 | break; | |
1792 | case SPARC64_NPC_REGNUM: | |
1793 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1794 | reg->loc.offset = 12; | |
1795 | break; | |
1796 | } | |
1797 | } | |
1798 | ||
58afddc6 WP |
1799 | /* sparc64_addr_bits_remove - remove useless address bits */ |
1800 | ||
1801 | static CORE_ADDR | |
1802 | sparc64_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr) | |
1803 | { | |
1804 | return adi_normalize_address (addr); | |
1805 | } | |
1806 | ||
8b39fe56 | 1807 | void |
386c036b | 1808 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1809 | { |
386c036b | 1810 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
8b39fe56 | 1811 | |
386c036b MK |
1812 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1813 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
3f7b46f2 IR |
1814 | tdep->fpu_register_names = sparc64_fpu_register_names; |
1815 | tdep->fpu_registers_num = ARRAY_SIZE (sparc64_fpu_register_names); | |
1816 | tdep->cp0_register_names = sparc64_cp0_register_names; | |
1817 | tdep->cp0_registers_num = ARRAY_SIZE (sparc64_cp0_register_names); | |
8b39fe56 | 1818 | |
386c036b | 1819 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1820 | set_gdbarch_long_bit (gdbarch, 64); |
1821 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1822 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 | 1823 | |
53375380 PA |
1824 | set_gdbarch_wchar_bit (gdbarch, 16); |
1825 | set_gdbarch_wchar_signed (gdbarch, 0); | |
1826 | ||
8b39fe56 MK |
1827 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); |
1828 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1829 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1830 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
3f7b46f2 IR |
1831 | set_tdesc_pseudo_register_name (gdbarch, sparc64_pseudo_register_name); |
1832 | set_tdesc_pseudo_register_type (gdbarch, sparc64_pseudo_register_type); | |
8b39fe56 MK |
1833 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); |
1834 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1835 | ||
1836 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1837 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1838 | |
1839 | /* Call dummy code. */ | |
49a45ecf | 1840 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1841 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1842 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1843 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1844 | ||
60af1db2 | 1845 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1846 | set_gdbarch_stabs_argument_has_addr |
1847 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1848 | |
1849 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
c9cf6e20 | 1850 | set_gdbarch_stack_frame_destroyed_p (gdbarch, sparc_stack_frame_destroyed_p); |
8b39fe56 | 1851 | |
02a71ae8 MK |
1852 | /* Hook in the DWARF CFI frame unwinder. */ |
1853 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1854 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1855 | StackGhost issues have been resolved. */ | |
1856 | ||
236369e7 | 1857 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1858 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
58afddc6 WP |
1859 | |
1860 | set_gdbarch_addr_bits_remove (gdbarch, sparc64_addr_bits_remove); | |
386c036b MK |
1861 | } |
1862 | \f | |
8b39fe56 | 1863 | |
386c036b | 1864 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1865 | |
386c036b MK |
1866 | #define TSTATE_CWP 0x000000000000001fULL |
1867 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1868 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1869 | |
386c036b | 1870 | #define PSR_S 0x00000080 |
39b06c20 | 1871 | #ifndef PSR_ICC |
386c036b | 1872 | #define PSR_ICC 0x00f00000 |
39b06c20 | 1873 | #endif |
386c036b | 1874 | #define PSR_VERS 0x0f000000 |
39b06c20 | 1875 | #ifndef PSR_IMPL |
386c036b | 1876 | #define PSR_IMPL 0xf0000000 |
39b06c20 | 1877 | #endif |
386c036b MK |
1878 | #define PSR_V8PLUS 0xff000000 |
1879 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1880 | |
3567a8ea | 1881 | void |
b4fd25c9 | 1882 | sparc64_supply_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1883 | struct regcache *regcache, |
1884 | int regnum, const void *gregs) | |
8b39fe56 | 1885 | { |
e17a4113 UW |
1886 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1887 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
1888 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1889 | const gdb_byte *regs = (const gdb_byte *) gregs; |
22e74ef9 | 1890 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1891 | int i; |
1892 | ||
386c036b | 1893 | if (sparc32) |
8b39fe56 | 1894 | { |
386c036b MK |
1895 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1896 | { | |
b4fd25c9 | 1897 | int offset = gregmap->r_tstate_offset; |
386c036b | 1898 | ULONGEST tstate, psr; |
e1613aba | 1899 | gdb_byte buf[4]; |
386c036b | 1900 | |
e17a4113 | 1901 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1902 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1903 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1904 | store_unsigned_integer (buf, 4, byte_order, psr); |
386c036b MK |
1905 | regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf); |
1906 | } | |
1907 | ||
1908 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
1909 | regcache_raw_supply (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 1910 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
1911 | |
1912 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
1913 | regcache_raw_supply (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 1914 | regs + gregmap->r_npc_offset + 4); |
8b39fe56 | 1915 | |
386c036b | 1916 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1917 | { |
b4fd25c9 | 1918 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 1919 | regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1920 | } |
1921 | } | |
1922 | else | |
1923 | { | |
386c036b MK |
1924 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
1925 | regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 1926 | regs + gregmap->r_tstate_offset); |
8b39fe56 | 1927 | |
386c036b MK |
1928 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
1929 | regcache_raw_supply (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 1930 | regs + gregmap->r_pc_offset); |
386c036b MK |
1931 | |
1932 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
1933 | regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 1934 | regs + gregmap->r_npc_offset); |
386c036b MK |
1935 | |
1936 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1937 | { |
e1613aba | 1938 | gdb_byte buf[8]; |
386c036b MK |
1939 | |
1940 | memset (buf, 0, 8); | |
b4fd25c9 AA |
1941 | memcpy (buf + 8 - gregmap->r_y_size, |
1942 | regs + gregmap->r_y_offset, gregmap->r_y_size); | |
386c036b | 1943 | regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf); |
3567a8ea | 1944 | } |
8b39fe56 | 1945 | |
386c036b | 1946 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
b4fd25c9 | 1947 | && gregmap->r_fprs_offset != -1) |
386c036b | 1948 | regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 1949 | regs + gregmap->r_fprs_offset); |
386c036b MK |
1950 | } |
1951 | ||
1952 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
22e74ef9 | 1953 | regcache_raw_supply (regcache, SPARC_G0_REGNUM, &zero); |
386c036b MK |
1954 | |
1955 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1956 | { | |
b4fd25c9 | 1957 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1958 | |
1959 | if (sparc32) | |
1960 | offset += 4; | |
1961 | ||
1962 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1963 | { |
3567a8ea | 1964 | if (regnum == i || regnum == -1) |
386c036b MK |
1965 | regcache_raw_supply (regcache, i, regs + offset); |
1966 | offset += 8; | |
1967 | } | |
1968 | } | |
1969 | ||
1970 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1971 | { | |
1972 | /* Not all of the register set variants include Locals and | |
1973 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 1974 | if (gregmap->r_l0_offset == -1) |
386c036b MK |
1975 | { |
1976 | ULONGEST sp; | |
1977 | ||
1978 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1979 | sparc_supply_rwindow (regcache, sp, regnum); | |
1980 | } | |
1981 | else | |
1982 | { | |
b4fd25c9 | 1983 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1984 | |
1985 | if (sparc32) | |
1986 | offset += 4; | |
1987 | ||
1988 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1989 | { |
386c036b MK |
1990 | if (regnum == i || regnum == -1) |
1991 | regcache_raw_supply (regcache, i, regs + offset); | |
1992 | offset += 8; | |
3567a8ea | 1993 | } |
8b39fe56 MK |
1994 | } |
1995 | } | |
1996 | } | |
1997 | ||
1998 | void | |
b4fd25c9 | 1999 | sparc64_collect_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
2000 | const struct regcache *regcache, |
2001 | int regnum, void *gregs) | |
8b39fe56 | 2002 | { |
e17a4113 UW |
2003 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
2004 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
2005 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 2006 | gdb_byte *regs = (gdb_byte *) gregs; |
3567a8ea MK |
2007 | int i; |
2008 | ||
386c036b | 2009 | if (sparc32) |
8b39fe56 | 2010 | { |
386c036b MK |
2011 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
2012 | { | |
b4fd25c9 | 2013 | int offset = gregmap->r_tstate_offset; |
386c036b | 2014 | ULONGEST tstate, psr; |
e1613aba | 2015 | gdb_byte buf[8]; |
386c036b | 2016 | |
e17a4113 | 2017 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b | 2018 | regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf); |
e17a4113 | 2019 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
2020 | tstate |= (psr & PSR_ICC) << 12; |
2021 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
2022 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 2023 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
2024 | memcpy (regs + offset, buf, 8); |
2025 | } | |
8b39fe56 | 2026 | |
386c036b MK |
2027 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
2028 | regcache_raw_collect (regcache, SPARC32_PC_REGNUM, | |
b4fd25c9 | 2029 | regs + gregmap->r_pc_offset + 4); |
386c036b MK |
2030 | |
2031 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
2032 | regcache_raw_collect (regcache, SPARC32_NPC_REGNUM, | |
b4fd25c9 | 2033 | regs + gregmap->r_npc_offset + 4); |
386c036b MK |
2034 | |
2035 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 2036 | { |
b4fd25c9 | 2037 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
386c036b | 2038 | regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
2039 | } |
2040 | } | |
2041 | else | |
2042 | { | |
386c036b MK |
2043 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
2044 | regcache_raw_collect (regcache, SPARC64_STATE_REGNUM, | |
b4fd25c9 | 2045 | regs + gregmap->r_tstate_offset); |
386c036b MK |
2046 | |
2047 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
2048 | regcache_raw_collect (regcache, SPARC64_PC_REGNUM, | |
b4fd25c9 | 2049 | regs + gregmap->r_pc_offset); |
3567a8ea | 2050 | |
386c036b MK |
2051 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
2052 | regcache_raw_collect (regcache, SPARC64_NPC_REGNUM, | |
b4fd25c9 | 2053 | regs + gregmap->r_npc_offset); |
3567a8ea | 2054 | |
386c036b | 2055 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 2056 | { |
e1613aba | 2057 | gdb_byte buf[8]; |
386c036b MK |
2058 | |
2059 | regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf); | |
b4fd25c9 AA |
2060 | memcpy (regs + gregmap->r_y_offset, |
2061 | buf + 8 - gregmap->r_y_size, gregmap->r_y_size); | |
386c036b MK |
2062 | } |
2063 | ||
2064 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
b4fd25c9 | 2065 | && gregmap->r_fprs_offset != -1) |
386c036b | 2066 | regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM, |
b4fd25c9 | 2067 | regs + gregmap->r_fprs_offset); |
386c036b MK |
2068 | |
2069 | } | |
2070 | ||
2071 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
2072 | { | |
b4fd25c9 | 2073 | int offset = gregmap->r_g1_offset; |
386c036b MK |
2074 | |
2075 | if (sparc32) | |
2076 | offset += 4; | |
2077 | ||
2078 | /* %g0 is always zero. */ | |
2079 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
2080 | { | |
2081 | if (regnum == i || regnum == -1) | |
2082 | regcache_raw_collect (regcache, i, regs + offset); | |
2083 | offset += 8; | |
2084 | } | |
2085 | } | |
2086 | ||
2087 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
2088 | { | |
2089 | /* Not all of the register set variants include Locals and | |
2090 | Inputs. For those that don't, we read them off the stack. */ | |
b4fd25c9 | 2091 | if (gregmap->r_l0_offset != -1) |
386c036b | 2092 | { |
b4fd25c9 | 2093 | int offset = gregmap->r_l0_offset; |
386c036b MK |
2094 | |
2095 | if (sparc32) | |
2096 | offset += 4; | |
2097 | ||
2098 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 2099 | { |
386c036b MK |
2100 | if (regnum == i || regnum == -1) |
2101 | regcache_raw_collect (regcache, i, regs + offset); | |
2102 | offset += 8; | |
3567a8ea MK |
2103 | } |
2104 | } | |
8b39fe56 MK |
2105 | } |
2106 | } | |
8b39fe56 | 2107 | |
386c036b | 2108 | void |
b4fd25c9 | 2109 | sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2110 | struct regcache *regcache, |
386c036b MK |
2111 | int regnum, const void *fpregs) |
2112 | { | |
e6d4f032 | 2113 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 2114 | const gdb_byte *regs = (const gdb_byte *) fpregs; |
386c036b MK |
2115 | int i; |
2116 | ||
2117 | for (i = 0; i < 32; i++) | |
2118 | { | |
2119 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 2120 | regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 2121 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
2122 | } |
2123 | ||
2124 | if (sparc32) | |
2125 | { | |
2126 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
2127 | regcache_raw_supply (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 2128 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2129 | } |
2130 | else | |
2131 | { | |
2132 | for (i = 0; i < 16; i++) | |
2133 | { | |
2134 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
2135 | regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 2136 | (regs + fpregmap->r_f0_offset |
db75c717 | 2137 | + (32 * 4) + (i * 8))); |
386c036b MK |
2138 | } |
2139 | ||
2140 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
2141 | regcache_raw_supply (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 2142 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2143 | } |
2144 | } | |
8b39fe56 MK |
2145 | |
2146 | void | |
b4fd25c9 | 2147 | sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2148 | const struct regcache *regcache, |
386c036b | 2149 | int regnum, void *fpregs) |
8b39fe56 | 2150 | { |
e6d4f032 | 2151 | int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32); |
19ba03f4 | 2152 | gdb_byte *regs = (gdb_byte *) fpregs; |
386c036b MK |
2153 | int i; |
2154 | ||
2155 | for (i = 0; i < 32; i++) | |
2156 | { | |
2157 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
db75c717 | 2158 | regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, |
b4fd25c9 | 2159 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
2160 | } |
2161 | ||
2162 | if (sparc32) | |
2163 | { | |
2164 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
2165 | regcache_raw_collect (regcache, SPARC32_FSR_REGNUM, | |
b4fd25c9 | 2166 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2167 | } |
2168 | else | |
2169 | { | |
2170 | for (i = 0; i < 16; i++) | |
2171 | { | |
2172 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
2173 | regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i, | |
b4fd25c9 | 2174 | (regs + fpregmap->r_f0_offset |
db75c717 | 2175 | + (32 * 4) + (i * 8))); |
386c036b MK |
2176 | } |
2177 | ||
2178 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
2179 | regcache_raw_collect (regcache, SPARC64_FSR_REGNUM, | |
b4fd25c9 | 2180 | regs + fpregmap->r_fsr_offset); |
386c036b | 2181 | } |
8b39fe56 | 2182 | } |
fd936806 | 2183 | |
b4fd25c9 | 2184 | const struct sparc_fpregmap sparc64_bsd_fpregmap = |
db75c717 DM |
2185 | { |
2186 | 0 * 8, /* %f0 */ | |
2187 | 32 * 8, /* %fsr */ | |
2188 | }; |