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8b39fe56 MK |
1 | /* Target-dependent code for UltraSPARC. |
2 | ||
4a94e368 | 3 | Copyright (C) 2003-2022 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" | |
82ca8957 | 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" | |
8b39fe56 | 36 | #include "sparc64-tdep.h" |
159ed7d9 | 37 | #include <forward_list> |
8b39fe56 | 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. */ | |
8f86ae1a | 89 | struct adi_stat_t |
58afddc6 WP |
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 | ||
8f86ae1a | 111 | }; |
58afddc6 WP |
112 | |
113 | /* Per-process ADI stat info. */ | |
114 | ||
8f86ae1a | 115 | struct sparc64_adi_info |
58afddc6 WP |
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 | ||
8f86ae1a | 127 | }; |
58afddc6 WP |
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 (), | |
dda83cd7 SM |
138 | [&pid] (const sparc64_adi_info &info) |
139 | { | |
140 | return info.pid == pid; | |
141 | }); | |
58afddc6 WP |
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 | { | |
dda83cd7 SM |
178 | if ((*it).stat.tag_fd > 0) |
179 | target_fileio_close ((*it).stat.tag_fd, &target_errno); | |
58afddc6 | 180 | adi_proc_list.erase_after (pit); |
dda83cd7 | 181 | break; |
58afddc6 WP |
182 | } |
183 | else | |
184 | pit = it++; | |
185 | } | |
186 | ||
187 | } | |
188 | ||
58afddc6 WP |
189 | /* Read attributes of a maps entry in /proc/[pid]/adi/maps. */ |
190 | ||
191 | static void | |
192 | read_maps_entry (const char *line, | |
dda83cd7 | 193 | ULONGEST *addr, ULONGEST *endaddr) |
58afddc6 WP |
194 | { |
195 | const char *p = line; | |
196 | ||
197 | *addr = strtoulst (p, &p, 16); | |
198 | if (*p == '-') | |
199 | p++; | |
200 | ||
201 | *endaddr = strtoulst (p, &p, 16); | |
202 | } | |
203 | ||
204 | /* Check if ADI is available. */ | |
205 | ||
206 | static bool | |
207 | adi_available (void) | |
208 | { | |
e99b03dc | 209 | pid_t pid = inferior_ptid.pid (); |
58afddc6 | 210 | sparc64_adi_info *proc = get_adi_info_proc (pid); |
654670a4 | 211 | CORE_ADDR value; |
58afddc6 WP |
212 | |
213 | if (proc->stat.checked_avail) | |
214 | return proc->stat.is_avail; | |
215 | ||
216 | proc->stat.checked_avail = true; | |
328d42d8 SM |
217 | if (target_auxv_search (current_inferior ()->top_target (), |
218 | AT_ADI_BLKSZ, &value) <= 0) | |
58afddc6 | 219 | return false; |
654670a4 | 220 | proc->stat.blksize = value; |
328d42d8 SM |
221 | target_auxv_search (current_inferior ()->top_target (), |
222 | AT_ADI_NBITS, &value); | |
654670a4 | 223 | proc->stat.nbits = value; |
58afddc6 WP |
224 | proc->stat.max_version = (1 << proc->stat.nbits) - 2; |
225 | proc->stat.is_avail = true; | |
226 | ||
227 | return proc->stat.is_avail; | |
228 | } | |
229 | ||
230 | /* Normalize a versioned address - a VA with ADI bits (63-60) set. */ | |
231 | ||
232 | static CORE_ADDR | |
233 | adi_normalize_address (CORE_ADDR addr) | |
234 | { | |
e99b03dc | 235 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
236 | |
237 | if (ast.nbits) | |
654670a4 WP |
238 | { |
239 | /* Clear upper bits. */ | |
240 | addr &= ((uint64_t) -1) >> ast.nbits; | |
241 | ||
242 | /* Sign extend. */ | |
243 | CORE_ADDR signbit = (uint64_t) 1 << (64 - ast.nbits - 1); | |
244 | return (addr ^ signbit) - signbit; | |
245 | } | |
58afddc6 WP |
246 | return addr; |
247 | } | |
248 | ||
249 | /* Align a normalized address - a VA with bit 59 sign extended into | |
250 | ADI bits. */ | |
251 | ||
252 | static CORE_ADDR | |
253 | adi_align_address (CORE_ADDR naddr) | |
254 | { | |
e99b03dc | 255 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
256 | |
257 | return (naddr - (naddr % ast.blksize)) / ast.blksize; | |
258 | } | |
259 | ||
260 | /* Convert a byte count to count at a ratio of 1:adi_blksz. */ | |
261 | ||
262 | static int | |
263 | adi_convert_byte_count (CORE_ADDR naddr, int nbytes, CORE_ADDR locl) | |
264 | { | |
e99b03dc | 265 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
266 | |
267 | return ((naddr + nbytes + ast.blksize - 1) / ast.blksize) - locl; | |
268 | } | |
269 | ||
270 | /* The /proc/[pid]/adi/tags file, which allows gdb to get/set ADI | |
271 | version in a target process, maps linearly to the address space | |
272 | of the target process at a ratio of 1:adi_blksz. | |
273 | ||
274 | A read (or write) at offset K in the file returns (or modifies) | |
275 | the ADI version tag stored in the cacheline containing address | |
276 | K * adi_blksz, encoded as 1 version tag per byte. The allowed | |
277 | version tag values are between 0 and adi_stat.max_version. */ | |
278 | ||
279 | static int | |
280 | adi_tag_fd (void) | |
281 | { | |
e99b03dc | 282 | pid_t pid = inferior_ptid.pid (); |
58afddc6 WP |
283 | sparc64_adi_info *proc = get_adi_info_proc (pid); |
284 | ||
285 | if (proc->stat.tag_fd != 0) | |
286 | return proc->stat.tag_fd; | |
287 | ||
288 | char cl_name[MAX_PROC_NAME_SIZE]; | |
39b06c20 | 289 | snprintf (cl_name, sizeof(cl_name), "/proc/%ld/adi/tags", (long) pid); |
58afddc6 WP |
290 | int target_errno; |
291 | proc->stat.tag_fd = target_fileio_open (NULL, cl_name, O_RDWR|O_EXCL, | |
dda83cd7 | 292 | false, 0, &target_errno); |
58afddc6 WP |
293 | return proc->stat.tag_fd; |
294 | } | |
295 | ||
296 | /* Check if an address set is ADI enabled, using /proc/[pid]/adi/maps | |
297 | which was exported by the kernel and contains the currently ADI | |
298 | mapped memory regions and their access permissions. */ | |
299 | ||
300 | static bool | |
301 | adi_is_addr_mapped (CORE_ADDR vaddr, size_t cnt) | |
302 | { | |
303 | char filename[MAX_PROC_NAME_SIZE]; | |
304 | size_t i = 0; | |
305 | ||
e99b03dc | 306 | pid_t pid = inferior_ptid.pid (); |
39b06c20 | 307 | snprintf (filename, sizeof filename, "/proc/%ld/adi/maps", (long) pid); |
87028b87 TT |
308 | gdb::unique_xmalloc_ptr<char> data |
309 | = target_fileio_read_stralloc (NULL, filename); | |
58afddc6 WP |
310 | if (data) |
311 | { | |
58afddc6 | 312 | adi_stat_t adi_stat = get_adi_info (pid); |
ca3a04f6 CB |
313 | char *saveptr; |
314 | for (char *line = strtok_r (data.get (), "\n", &saveptr); | |
315 | line; | |
316 | line = strtok_r (NULL, "\n", &saveptr)) | |
dda83cd7 SM |
317 | { |
318 | ULONGEST addr, endaddr; | |
58afddc6 | 319 | |
dda83cd7 | 320 | read_maps_entry (line, &addr, &endaddr); |
58afddc6 | 321 | |
dda83cd7 SM |
322 | while (((vaddr + i) * adi_stat.blksize) >= addr |
323 | && ((vaddr + i) * adi_stat.blksize) < endaddr) | |
324 | { | |
325 | if (++i == cnt) | |
87028b87 | 326 | return true; |
dda83cd7 SM |
327 | } |
328 | } | |
58afddc6 | 329 | } |
492325c4 SM |
330 | else |
331 | warning (_("unable to open /proc file '%s'"), filename); | |
58afddc6 WP |
332 | |
333 | return false; | |
334 | } | |
335 | ||
336 | /* Read ADI version tag value for memory locations starting at "VADDR" | |
337 | for "SIZE" number of bytes. */ | |
338 | ||
339 | static int | |
7f6743fd | 340 | adi_read_versions (CORE_ADDR vaddr, size_t size, gdb_byte *tags) |
58afddc6 WP |
341 | { |
342 | int fd = adi_tag_fd (); | |
343 | if (fd == -1) | |
344 | return -1; | |
345 | ||
346 | if (!adi_is_addr_mapped (vaddr, size)) | |
347 | { | |
e99b03dc | 348 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
654670a4 | 349 | error(_("Address at %s is not in ADI maps"), |
dda83cd7 | 350 | paddress (target_gdbarch (), vaddr * ast.blksize)); |
58afddc6 WP |
351 | } |
352 | ||
353 | int target_errno; | |
354 | return target_fileio_pread (fd, tags, size, vaddr, &target_errno); | |
355 | } | |
356 | ||
357 | /* Write ADI version tag for memory locations starting at "VADDR" for | |
358 | "SIZE" number of bytes to "TAGS". */ | |
359 | ||
360 | static int | |
361 | adi_write_versions (CORE_ADDR vaddr, size_t size, unsigned char *tags) | |
362 | { | |
363 | int fd = adi_tag_fd (); | |
364 | if (fd == -1) | |
365 | return -1; | |
366 | ||
367 | if (!adi_is_addr_mapped (vaddr, size)) | |
368 | { | |
e99b03dc | 369 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
654670a4 | 370 | error(_("Address at %s is not in ADI maps"), |
dda83cd7 | 371 | paddress (target_gdbarch (), vaddr * ast.blksize)); |
58afddc6 WP |
372 | } |
373 | ||
374 | int target_errno; | |
375 | return target_fileio_pwrite (fd, tags, size, vaddr, &target_errno); | |
376 | } | |
377 | ||
378 | /* Print ADI version tag value in "TAGS" for memory locations starting | |
379 | at "VADDR" with number of "CNT". */ | |
380 | ||
381 | static void | |
7f6743fd | 382 | adi_print_versions (CORE_ADDR vaddr, size_t cnt, gdb_byte *tags) |
58afddc6 WP |
383 | { |
384 | int v_idx = 0; | |
385 | const int maxelts = 8; /* # of elements per line */ | |
386 | ||
e99b03dc | 387 | adi_stat_t adi_stat = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
388 | |
389 | while (cnt > 0) | |
390 | { | |
391 | QUIT; | |
6cb06a8c TT |
392 | gdb_printf ("%s:\t", |
393 | paddress (target_gdbarch (), vaddr * adi_stat.blksize)); | |
58afddc6 | 394 | for (int i = maxelts; i > 0 && cnt > 0; i--, cnt--) |
dda83cd7 SM |
395 | { |
396 | if (tags[v_idx] == 0xff) /* no version tag */ | |
6cb06a8c | 397 | gdb_printf ("-"); |
dda83cd7 | 398 | else |
6cb06a8c | 399 | gdb_printf ("%1X", tags[v_idx]); |
58afddc6 | 400 | if (cnt > 1) |
6cb06a8c | 401 | gdb_printf (" "); |
dda83cd7 SM |
402 | ++v_idx; |
403 | } | |
6cb06a8c | 404 | gdb_printf ("\n"); |
58afddc6 WP |
405 | vaddr += maxelts; |
406 | } | |
407 | } | |
408 | ||
409 | static void | |
410 | do_examine (CORE_ADDR start, int bcnt) | |
411 | { | |
412 | CORE_ADDR vaddr = adi_normalize_address (start); | |
58afddc6 WP |
413 | |
414 | CORE_ADDR vstart = adi_align_address (vaddr); | |
415 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
7f6743fd TT |
416 | gdb::def_vector<gdb_byte> buf (cnt); |
417 | int read_cnt = adi_read_versions (vstart, cnt, buf.data ()); | |
58afddc6 WP |
418 | if (read_cnt == -1) |
419 | error (_("No ADI information")); | |
420 | else if (read_cnt < cnt) | |
654670a4 | 421 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 | 422 | |
7f6743fd | 423 | adi_print_versions (vstart, cnt, buf.data ()); |
58afddc6 WP |
424 | } |
425 | ||
426 | static void | |
427 | do_assign (CORE_ADDR start, size_t bcnt, int version) | |
428 | { | |
429 | CORE_ADDR vaddr = adi_normalize_address (start); | |
430 | ||
431 | CORE_ADDR vstart = adi_align_address (vaddr); | |
432 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
433 | std::vector<unsigned char> buf (cnt, version); | |
434 | int set_cnt = adi_write_versions (vstart, cnt, buf.data ()); | |
435 | ||
436 | if (set_cnt == -1) | |
437 | error (_("No ADI information")); | |
438 | else if (set_cnt < cnt) | |
654670a4 | 439 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 WP |
440 | |
441 | } | |
442 | ||
443 | /* ADI examine version tag command. | |
444 | ||
445 | Command syntax: | |
446 | ||
65e65158 | 447 | adi (examine|x)[/COUNT] [ADDR] */ |
58afddc6 WP |
448 | |
449 | static void | |
5fed81ff | 450 | adi_examine_command (const char *args, int from_tty) |
58afddc6 WP |
451 | { |
452 | /* make sure program is active and adi is available */ | |
55f6301a | 453 | if (!target_has_execution ()) |
58afddc6 WP |
454 | error (_("ADI command requires a live process/thread")); |
455 | ||
456 | if (!adi_available ()) | |
457 | error (_("No ADI information")); | |
458 | ||
58afddc6 | 459 | int cnt = 1; |
5fed81ff | 460 | const char *p = args; |
58afddc6 WP |
461 | if (p && *p == '/') |
462 | { | |
463 | p++; | |
464 | cnt = get_number (&p); | |
465 | } | |
466 | ||
467 | CORE_ADDR next_address = 0; | |
468 | if (p != 0 && *p != 0) | |
469 | next_address = parse_and_eval_address (p); | |
470 | if (!cnt || !next_address) | |
65e65158 | 471 | error (_("Usage: adi examine|x[/COUNT] [ADDR]")); |
58afddc6 WP |
472 | |
473 | do_examine (next_address, cnt); | |
474 | } | |
475 | ||
476 | /* ADI assign version tag command. | |
477 | ||
478 | Command syntax: | |
479 | ||
65e65158 | 480 | adi (assign|a)[/COUNT] ADDR = VERSION */ |
58afddc6 WP |
481 | |
482 | static void | |
5fed81ff | 483 | adi_assign_command (const char *args, int from_tty) |
58afddc6 | 484 | { |
65e65158 TT |
485 | static const char *adi_usage |
486 | = N_("Usage: adi assign|a[/COUNT] ADDR = VERSION"); | |
487 | ||
58afddc6 | 488 | /* make sure program is active and adi is available */ |
55f6301a | 489 | if (!target_has_execution ()) |
58afddc6 WP |
490 | error (_("ADI command requires a live process/thread")); |
491 | ||
492 | if (!adi_available ()) | |
493 | error (_("No ADI information")); | |
494 | ||
5fed81ff | 495 | const char *exp = args; |
58afddc6 | 496 | if (exp == 0) |
65e65158 | 497 | error_no_arg (_(adi_usage)); |
58afddc6 WP |
498 | |
499 | char *q = (char *) strchr (exp, '='); | |
500 | if (q) | |
501 | *q++ = 0; | |
502 | else | |
65e65158 | 503 | error ("%s", _(adi_usage)); |
58afddc6 WP |
504 | |
505 | size_t cnt = 1; | |
5fed81ff | 506 | const char *p = args; |
58afddc6 WP |
507 | if (exp && *exp == '/') |
508 | { | |
509 | p = exp + 1; | |
510 | cnt = get_number (&p); | |
511 | } | |
512 | ||
513 | CORE_ADDR next_address = 0; | |
514 | if (p != 0 && *p != 0) | |
515 | next_address = parse_and_eval_address (p); | |
516 | else | |
65e65158 | 517 | error ("%s", _(adi_usage)); |
58afddc6 WP |
518 | |
519 | int version = 0; | |
520 | if (q != NULL) /* parse version tag */ | |
521 | { | |
e99b03dc | 522 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
523 | version = parse_and_eval_long (q); |
524 | if (version < 0 || version > ast.max_version) | |
dda83cd7 | 525 | error (_("Invalid ADI version tag %d"), version); |
58afddc6 WP |
526 | } |
527 | ||
528 | do_assign (next_address, cnt, version); | |
529 | } | |
530 | ||
6c265988 | 531 | void _initialize_sparc64_adi_tdep (); |
58afddc6 | 532 | void |
6c265988 | 533 | _initialize_sparc64_adi_tdep () |
58afddc6 | 534 | { |
0743fc83 TT |
535 | add_basic_prefix_cmd ("adi", class_support, |
536 | _("ADI version related commands."), | |
2f822da5 | 537 | &sparc64adilist, 0, &cmdlist); |
5e84b7ee SM |
538 | cmd_list_element *adi_examine_cmd |
539 | = add_cmd ("examine", class_support, adi_examine_command, | |
540 | _("Examine ADI versions."), &sparc64adilist); | |
541 | add_alias_cmd ("x", adi_examine_cmd, no_class, 1, &sparc64adilist); | |
58afddc6 | 542 | add_cmd ("assign", class_support, adi_assign_command, |
dda83cd7 | 543 | _("Assign ADI versions."), &sparc64adilist); |
58afddc6 WP |
544 | |
545 | } | |
546 | \f | |
547 | ||
8b39fe56 MK |
548 | /* The functions on this page are intended to be used to classify |
549 | function arguments. */ | |
550 | ||
8b39fe56 MK |
551 | /* Check whether TYPE is "Integral or Pointer". */ |
552 | ||
553 | static int | |
554 | sparc64_integral_or_pointer_p (const struct type *type) | |
555 | { | |
78134374 | 556 | switch (type->code ()) |
8b39fe56 MK |
557 | { |
558 | case TYPE_CODE_INT: | |
559 | case TYPE_CODE_BOOL: | |
560 | case TYPE_CODE_CHAR: | |
561 | case TYPE_CODE_ENUM: | |
562 | case TYPE_CODE_RANGE: | |
563 | { | |
564 | int len = TYPE_LENGTH (type); | |
565 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); | |
566 | } | |
567 | return 1; | |
568 | case TYPE_CODE_PTR: | |
569 | case TYPE_CODE_REF: | |
aa006118 | 570 | case TYPE_CODE_RVALUE_REF: |
8b39fe56 MK |
571 | { |
572 | int len = TYPE_LENGTH (type); | |
573 | gdb_assert (len == 8); | |
574 | } | |
575 | return 1; | |
576 | default: | |
577 | break; | |
578 | } | |
579 | ||
580 | return 0; | |
581 | } | |
582 | ||
583 | /* Check whether TYPE is "Floating". */ | |
584 | ||
585 | static int | |
586 | sparc64_floating_p (const struct type *type) | |
587 | { | |
78134374 | 588 | switch (type->code ()) |
8b39fe56 MK |
589 | { |
590 | case TYPE_CODE_FLT: | |
591 | { | |
592 | int len = TYPE_LENGTH (type); | |
593 | gdb_assert (len == 4 || len == 8 || len == 16); | |
594 | } | |
595 | return 1; | |
596 | default: | |
597 | break; | |
598 | } | |
599 | ||
600 | return 0; | |
601 | } | |
602 | ||
fe10a582 DM |
603 | /* Check whether TYPE is "Complex Floating". */ |
604 | ||
605 | static int | |
606 | sparc64_complex_floating_p (const struct type *type) | |
607 | { | |
78134374 | 608 | switch (type->code ()) |
fe10a582 DM |
609 | { |
610 | case TYPE_CODE_COMPLEX: | |
611 | { | |
612 | int len = TYPE_LENGTH (type); | |
613 | gdb_assert (len == 8 || len == 16 || len == 32); | |
614 | } | |
615 | return 1; | |
616 | default: | |
617 | break; | |
618 | } | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
0497f5b0 JB |
623 | /* Check whether TYPE is "Structure or Union". |
624 | ||
625 | In terms of Ada subprogram calls, arrays are treated the same as | |
626 | struct and union types. So this function also returns non-zero | |
627 | for array types. */ | |
8b39fe56 MK |
628 | |
629 | static int | |
630 | sparc64_structure_or_union_p (const struct type *type) | |
631 | { | |
78134374 | 632 | switch (type->code ()) |
8b39fe56 MK |
633 | { |
634 | case TYPE_CODE_STRUCT: | |
635 | case TYPE_CODE_UNION: | |
0497f5b0 | 636 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
637 | return 1; |
638 | default: | |
639 | break; | |
640 | } | |
641 | ||
642 | return 0; | |
643 | } | |
fd936806 MK |
644 | \f |
645 | ||
209bd28e | 646 | /* Construct types for ISA-specific registers. */ |
fd936806 | 647 | |
209bd28e UW |
648 | static struct type * |
649 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
650 | { | |
345bd07c | 651 | sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch); |
fd936806 | 652 | |
209bd28e UW |
653 | if (!tdep->sparc64_pstate_type) |
654 | { | |
655 | struct type *type; | |
656 | ||
77b7c781 | 657 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 64); |
209bd28e UW |
658 | append_flags_type_flag (type, 0, "AG"); |
659 | append_flags_type_flag (type, 1, "IE"); | |
660 | append_flags_type_flag (type, 2, "PRIV"); | |
661 | append_flags_type_flag (type, 3, "AM"); | |
662 | append_flags_type_flag (type, 4, "PEF"); | |
663 | append_flags_type_flag (type, 5, "RED"); | |
664 | append_flags_type_flag (type, 8, "TLE"); | |
665 | append_flags_type_flag (type, 9, "CLE"); | |
666 | append_flags_type_flag (type, 10, "PID0"); | |
667 | append_flags_type_flag (type, 11, "PID1"); | |
668 | ||
669 | tdep->sparc64_pstate_type = type; | |
670 | } | |
fd936806 | 671 | |
209bd28e UW |
672 | return tdep->sparc64_pstate_type; |
673 | } | |
fd936806 | 674 | |
5badf10a IR |
675 | static struct type * |
676 | sparc64_ccr_type (struct gdbarch *gdbarch) | |
677 | { | |
345bd07c | 678 | sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch); |
5badf10a IR |
679 | |
680 | if (tdep->sparc64_ccr_type == NULL) | |
681 | { | |
682 | struct type *type; | |
683 | ||
77b7c781 | 684 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_ccr", 64); |
5badf10a IR |
685 | append_flags_type_flag (type, 0, "icc.c"); |
686 | append_flags_type_flag (type, 1, "icc.v"); | |
687 | append_flags_type_flag (type, 2, "icc.z"); | |
688 | append_flags_type_flag (type, 3, "icc.n"); | |
689 | append_flags_type_flag (type, 4, "xcc.c"); | |
690 | append_flags_type_flag (type, 5, "xcc.v"); | |
691 | append_flags_type_flag (type, 6, "xcc.z"); | |
692 | append_flags_type_flag (type, 7, "xcc.n"); | |
693 | ||
694 | tdep->sparc64_ccr_type = type; | |
695 | } | |
696 | ||
697 | return tdep->sparc64_ccr_type; | |
698 | } | |
699 | ||
209bd28e UW |
700 | static struct type * |
701 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
702 | { | |
345bd07c | 703 | sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch); |
209bd28e UW |
704 | |
705 | if (!tdep->sparc64_fsr_type) | |
706 | { | |
707 | struct type *type; | |
708 | ||
77b7c781 | 709 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 64); |
5badf10a IR |
710 | append_flags_type_flag (type, 0, "NXC"); |
711 | append_flags_type_flag (type, 1, "DZC"); | |
712 | append_flags_type_flag (type, 2, "UFC"); | |
713 | append_flags_type_flag (type, 3, "OFC"); | |
714 | append_flags_type_flag (type, 4, "NVC"); | |
715 | append_flags_type_flag (type, 5, "NXA"); | |
716 | append_flags_type_flag (type, 6, "DZA"); | |
717 | append_flags_type_flag (type, 7, "UFA"); | |
718 | append_flags_type_flag (type, 8, "OFA"); | |
719 | append_flags_type_flag (type, 9, "NVA"); | |
209bd28e UW |
720 | append_flags_type_flag (type, 22, "NS"); |
721 | append_flags_type_flag (type, 23, "NXM"); | |
722 | append_flags_type_flag (type, 24, "DZM"); | |
723 | append_flags_type_flag (type, 25, "UFM"); | |
724 | append_flags_type_flag (type, 26, "OFM"); | |
725 | append_flags_type_flag (type, 27, "NVM"); | |
726 | ||
727 | tdep->sparc64_fsr_type = type; | |
728 | } | |
729 | ||
730 | return tdep->sparc64_fsr_type; | |
731 | } | |
732 | ||
733 | static struct type * | |
734 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 735 | { |
345bd07c | 736 | sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch); |
209bd28e UW |
737 | |
738 | if (!tdep->sparc64_fprs_type) | |
739 | { | |
740 | struct type *type; | |
741 | ||
77b7c781 | 742 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 64); |
209bd28e UW |
743 | append_flags_type_flag (type, 0, "DL"); |
744 | append_flags_type_flag (type, 1, "DU"); | |
745 | append_flags_type_flag (type, 2, "FEF"); | |
746 | ||
747 | tdep->sparc64_fprs_type = type; | |
748 | } | |
749 | ||
750 | return tdep->sparc64_fprs_type; | |
fd936806 | 751 | } |
8b39fe56 | 752 | |
209bd28e | 753 | |
8b39fe56 | 754 | /* Register information. */ |
7a36499a IR |
755 | #define SPARC64_FPU_REGISTERS \ |
756 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
757 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
758 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
759 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
760 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \ | |
761 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62" | |
762 | #define SPARC64_CP0_REGISTERS \ | |
763 | "pc", "npc", \ | |
764 | /* FIXME: Give "state" a name until we start using register groups. */ \ | |
765 | "state", \ | |
766 | "fsr", \ | |
767 | "fprs", \ | |
768 | "y" | |
8b39fe56 | 769 | |
27087b7f TT |
770 | static const char * const sparc64_fpu_register_names[] = { |
771 | SPARC64_FPU_REGISTERS | |
772 | }; | |
773 | static const char * const sparc64_cp0_register_names[] = { | |
774 | SPARC64_CP0_REGISTERS | |
775 | }; | |
3f7b46f2 | 776 | |
27087b7f | 777 | static const char * const sparc64_register_names[] = |
8b39fe56 | 778 | { |
7a36499a IR |
779 | SPARC_CORE_REGISTERS, |
780 | SPARC64_FPU_REGISTERS, | |
781 | SPARC64_CP0_REGISTERS | |
8b39fe56 MK |
782 | }; |
783 | ||
784 | /* Total number of registers. */ | |
6707b003 | 785 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
786 | |
787 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
788 | registers as "psuedo" registers. */ | |
789 | ||
27087b7f | 790 | static const char * const sparc64_pseudo_register_names[] = |
8b39fe56 | 791 | { |
6707b003 UW |
792 | "cwp", "pstate", "asi", "ccr", |
793 | ||
794 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
795 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
796 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
797 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
798 | ||
799 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
800 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
801 | }; |
802 | ||
803 | /* Total number of pseudo registers. */ | |
6707b003 | 804 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 | 805 | |
7a36499a IR |
806 | /* Return the name of pseudo register REGNUM. */ |
807 | ||
808 | static const char * | |
809 | sparc64_pseudo_register_name (struct gdbarch *gdbarch, int regnum) | |
810 | { | |
811 | regnum -= gdbarch_num_regs (gdbarch); | |
812 | ||
813 | if (regnum < SPARC64_NUM_PSEUDO_REGS) | |
814 | return sparc64_pseudo_register_names[regnum]; | |
815 | ||
816 | internal_error (__FILE__, __LINE__, | |
dda83cd7 SM |
817 | _("sparc64_pseudo_register_name: bad register number %d"), |
818 | regnum); | |
7a36499a IR |
819 | } |
820 | ||
8b39fe56 MK |
821 | /* Return the name of register REGNUM. */ |
822 | ||
823 | static const char * | |
d93859e2 | 824 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 | 825 | { |
3f7b46f2 IR |
826 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
827 | return tdesc_register_name (gdbarch, regnum); | |
828 | ||
7a36499a | 829 | if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) |
6707b003 | 830 | return sparc64_register_names[regnum]; |
8b39fe56 | 831 | |
7a36499a IR |
832 | return sparc64_pseudo_register_name (gdbarch, regnum); |
833 | } | |
834 | ||
835 | /* Return the GDB type object for the "standard" data type of data in | |
836 | pseudo register REGNUM. */ | |
837 | ||
838 | static struct type * | |
839 | sparc64_pseudo_register_type (struct gdbarch *gdbarch, int regnum) | |
840 | { | |
841 | regnum -= gdbarch_num_regs (gdbarch); | |
842 | ||
843 | if (regnum == SPARC64_CWP_REGNUM) | |
844 | return builtin_type (gdbarch)->builtin_int64; | |
845 | if (regnum == SPARC64_PSTATE_REGNUM) | |
846 | return sparc64_pstate_type (gdbarch); | |
847 | if (regnum == SPARC64_ASI_REGNUM) | |
848 | return builtin_type (gdbarch)->builtin_int64; | |
849 | if (regnum == SPARC64_CCR_REGNUM) | |
5badf10a | 850 | return sparc64_ccr_type (gdbarch); |
7a36499a IR |
851 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) |
852 | return builtin_type (gdbarch)->builtin_double; | |
853 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
854 | return builtin_type (gdbarch)->builtin_long_double; | |
8b39fe56 | 855 | |
7a36499a | 856 | internal_error (__FILE__, __LINE__, |
dda83cd7 SM |
857 | _("sparc64_pseudo_register_type: bad register number %d"), |
858 | regnum); | |
8b39fe56 MK |
859 | } |
860 | ||
861 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 862 | register REGNUM. */ |
8b39fe56 MK |
863 | |
864 | static struct type * | |
865 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
866 | { | |
3f7b46f2 IR |
867 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
868 | return tdesc_register_type (gdbarch, regnum); | |
869 | ||
6707b003 | 870 | /* Raw registers. */ |
6707b003 | 871 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) |
0dfff4cb | 872 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 873 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 874 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 875 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 876 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 877 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 878 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 879 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 880 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
881 | /* This raw register contains the contents of %cwp, %pstate, %asi |
882 | and %ccr as laid out in a %tstate register. */ | |
883 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 884 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 885 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 886 | return sparc64_fsr_type (gdbarch); |
6707b003 | 887 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 888 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
889 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
890 | reserved and always read as 0." */ | |
891 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 892 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
893 | |
894 | /* Pseudo registers. */ | |
7a36499a IR |
895 | if (regnum >= gdbarch_num_regs (gdbarch)) |
896 | return sparc64_pseudo_register_type (gdbarch, regnum); | |
6707b003 UW |
897 | |
898 | internal_error (__FILE__, __LINE__, _("invalid regnum")); | |
8b39fe56 MK |
899 | } |
900 | ||
05d1431c | 901 | static enum register_status |
8b39fe56 | 902 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
849d0ba8 | 903 | readable_regcache *regcache, |
e1613aba | 904 | int regnum, gdb_byte *buf) |
8b39fe56 | 905 | { |
e17a4113 | 906 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
907 | enum register_status status; |
908 | ||
7a36499a | 909 | regnum -= gdbarch_num_regs (gdbarch); |
8b39fe56 MK |
910 | |
911 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
912 | { | |
913 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
03f50fc8 | 914 | status = regcache->raw_read (regnum, buf); |
05d1431c | 915 | if (status == REG_VALID) |
03f50fc8 | 916 | status = regcache->raw_read (regnum + 1, buf + 4); |
05d1431c | 917 | return status; |
8b39fe56 MK |
918 | } |
919 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
920 | { | |
921 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
03f50fc8 | 922 | return regcache->raw_read (regnum, buf); |
8b39fe56 MK |
923 | } |
924 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
925 | { | |
926 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c | 927 | |
03f50fc8 | 928 | status = regcache->raw_read (regnum, buf); |
05d1431c | 929 | if (status == REG_VALID) |
03f50fc8 | 930 | status = regcache->raw_read (regnum + 1, buf + 4); |
05d1431c | 931 | if (status == REG_VALID) |
03f50fc8 | 932 | status = regcache->raw_read (regnum + 2, buf + 8); |
05d1431c | 933 | if (status == REG_VALID) |
03f50fc8 | 934 | status = regcache->raw_read (regnum + 3, buf + 12); |
05d1431c PA |
935 | |
936 | return status; | |
8b39fe56 MK |
937 | } |
938 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
939 | { | |
940 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c | 941 | |
03f50fc8 | 942 | status = regcache->raw_read (regnum, buf); |
05d1431c | 943 | if (status == REG_VALID) |
03f50fc8 | 944 | status = regcache->raw_read (regnum + 1, buf + 8); |
05d1431c PA |
945 | |
946 | return status; | |
8b39fe56 MK |
947 | } |
948 | else if (regnum == SPARC64_CWP_REGNUM | |
949 | || regnum == SPARC64_PSTATE_REGNUM | |
950 | || regnum == SPARC64_ASI_REGNUM | |
951 | || regnum == SPARC64_CCR_REGNUM) | |
952 | { | |
953 | ULONGEST state; | |
954 | ||
03f50fc8 | 955 | status = regcache->raw_read (SPARC64_STATE_REGNUM, &state); |
05d1431c PA |
956 | if (status != REG_VALID) |
957 | return status; | |
958 | ||
8b39fe56 MK |
959 | switch (regnum) |
960 | { | |
3567a8ea | 961 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
962 | state = (state >> 0) & ((1 << 5) - 1); |
963 | break; | |
3567a8ea | 964 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
965 | state = (state >> 8) & ((1 << 12) - 1); |
966 | break; | |
3567a8ea | 967 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
968 | state = (state >> 24) & ((1 << 8) - 1); |
969 | break; | |
3567a8ea | 970 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
971 | state = (state >> 32) & ((1 << 8) - 1); |
972 | break; | |
973 | } | |
e17a4113 | 974 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 975 | } |
05d1431c PA |
976 | |
977 | return REG_VALID; | |
8b39fe56 MK |
978 | } |
979 | ||
980 | static void | |
981 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
982 | struct regcache *regcache, | |
e1613aba | 983 | int regnum, const gdb_byte *buf) |
8b39fe56 | 984 | { |
e17a4113 | 985 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
7a36499a IR |
986 | |
987 | regnum -= gdbarch_num_regs (gdbarch); | |
8b39fe56 MK |
988 | |
989 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
990 | { | |
991 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
10eaee5f SM |
992 | regcache->raw_write (regnum, buf); |
993 | regcache->raw_write (regnum + 1, buf + 4); | |
8b39fe56 MK |
994 | } |
995 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
996 | { | |
997 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
10eaee5f | 998 | regcache->raw_write (regnum, buf); |
8b39fe56 MK |
999 | } |
1000 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
1001 | { | |
1002 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
10eaee5f SM |
1003 | regcache->raw_write (regnum, buf); |
1004 | regcache->raw_write (regnum + 1, buf + 4); | |
1005 | regcache->raw_write (regnum + 2, buf + 8); | |
1006 | regcache->raw_write (regnum + 3, buf + 12); | |
8b39fe56 MK |
1007 | } |
1008 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
1009 | { | |
1010 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
10eaee5f SM |
1011 | regcache->raw_write (regnum, buf); |
1012 | regcache->raw_write (regnum + 1, buf + 8); | |
8b39fe56 | 1013 | } |
3567a8ea MK |
1014 | else if (regnum == SPARC64_CWP_REGNUM |
1015 | || regnum == SPARC64_PSTATE_REGNUM | |
1016 | || regnum == SPARC64_ASI_REGNUM | |
1017 | || regnum == SPARC64_CCR_REGNUM) | |
1018 | { | |
1019 | ULONGEST state, bits; | |
1020 | ||
1021 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 1022 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
1023 | switch (regnum) |
1024 | { | |
1025 | case SPARC64_CWP_REGNUM: | |
1026 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
1027 | break; | |
1028 | case SPARC64_PSTATE_REGNUM: | |
1029 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
1030 | break; | |
1031 | case SPARC64_ASI_REGNUM: | |
1032 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
1033 | break; | |
1034 | case SPARC64_CCR_REGNUM: | |
1035 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
1036 | break; | |
1037 | } | |
1038 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
1039 | } | |
8b39fe56 | 1040 | } |
8b39fe56 MK |
1041 | \f |
1042 | ||
8b39fe56 MK |
1043 | /* Return PC of first real instruction of the function starting at |
1044 | START_PC. */ | |
1045 | ||
1046 | static CORE_ADDR | |
6093d2eb | 1047 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
1048 | { |
1049 | struct symtab_and_line sal; | |
1050 | CORE_ADDR func_start, func_end; | |
386c036b | 1051 | struct sparc_frame_cache cache; |
8b39fe56 MK |
1052 | |
1053 | /* This is the preferred method, find the end of the prologue by | |
1054 | using the debugging information. */ | |
1055 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
1056 | { | |
1057 | sal = find_pc_line (func_start, 0); | |
1058 | ||
1059 | if (sal.end < func_end | |
1060 | && start_pc <= sal.end) | |
1061 | return sal.end; | |
1062 | } | |
1063 | ||
be8626e0 MD |
1064 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
1065 | &cache); | |
8b39fe56 MK |
1066 | } |
1067 | ||
1068 | /* Normal frames. */ | |
1069 | ||
386c036b | 1070 | static struct sparc_frame_cache * |
236369e7 | 1071 | sparc64_frame_cache (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 1072 | { |
236369e7 | 1073 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1074 | } |
1075 | ||
1076 | static void | |
236369e7 | 1077 | sparc64_frame_this_id (struct frame_info *this_frame, void **this_cache, |
8b39fe56 MK |
1078 | struct frame_id *this_id) |
1079 | { | |
386c036b | 1080 | struct sparc_frame_cache *cache = |
236369e7 | 1081 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1082 | |
1083 | /* This marks the outermost frame. */ | |
1084 | if (cache->base == 0) | |
1085 | return; | |
1086 | ||
1087 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
1088 | } | |
1089 | ||
236369e7 JB |
1090 | static struct value * |
1091 | sparc64_frame_prev_register (struct frame_info *this_frame, void **this_cache, | |
1092 | int regnum) | |
8b39fe56 | 1093 | { |
e17a4113 | 1094 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 1095 | struct sparc_frame_cache *cache = |
236369e7 | 1096 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1097 | |
1098 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
1099 | { | |
236369e7 | 1100 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 1101 | |
369c397b JB |
1102 | regnum = |
1103 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
1104 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
1105 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
1106 | } |
1107 | ||
f700a364 MK |
1108 | /* Handle StackGhost. */ |
1109 | { | |
e17a4113 | 1110 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
1111 | |
1112 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
1113 | { | |
dda83cd7 SM |
1114 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
1115 | ULONGEST i7; | |
236369e7 | 1116 | |
dda83cd7 SM |
1117 | /* Read the value in from memory. */ |
1118 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
1119 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
1120 | } |
1121 | } | |
1122 | ||
369c397b | 1123 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 1124 | in the register save area. */ |
369c397b JB |
1125 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
1126 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 1127 | { |
236369e7 | 1128 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 1129 | |
236369e7 | 1130 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
1131 | } |
1132 | ||
369c397b JB |
1133 | /* The previous frame's `out' registers may be accessible as the current |
1134 | frame's `in' registers. */ | |
1135 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
1136 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
1137 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
1138 | ||
236369e7 | 1139 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
1140 | } |
1141 | ||
1142 | static const struct frame_unwind sparc64_frame_unwind = | |
1143 | { | |
a154d838 | 1144 | "sparc64 prologue", |
8b39fe56 | 1145 | NORMAL_FRAME, |
8fbca658 | 1146 | default_frame_unwind_stop_reason, |
8b39fe56 | 1147 | sparc64_frame_this_id, |
236369e7 JB |
1148 | sparc64_frame_prev_register, |
1149 | NULL, | |
1150 | default_frame_sniffer | |
8b39fe56 | 1151 | }; |
8b39fe56 MK |
1152 | \f |
1153 | ||
1154 | static CORE_ADDR | |
236369e7 | 1155 | sparc64_frame_base_address (struct frame_info *this_frame, void **this_cache) |
8b39fe56 | 1156 | { |
386c036b | 1157 | struct sparc_frame_cache *cache = |
236369e7 | 1158 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 1159 | |
5b2d44a0 | 1160 | return cache->base; |
8b39fe56 MK |
1161 | } |
1162 | ||
1163 | static const struct frame_base sparc64_frame_base = | |
1164 | { | |
1165 | &sparc64_frame_unwind, | |
1166 | sparc64_frame_base_address, | |
1167 | sparc64_frame_base_address, | |
1168 | sparc64_frame_base_address | |
1169 | }; | |
8b39fe56 MK |
1170 | \f |
1171 | /* Check whether TYPE must be 16-byte aligned. */ | |
1172 | ||
1173 | static int | |
1174 | sparc64_16_byte_align_p (struct type *type) | |
1175 | { | |
78134374 | 1176 | if (type->code () == TYPE_CODE_ARRAY) |
1933fd8e VM |
1177 | { |
1178 | struct type *t = check_typedef (TYPE_TARGET_TYPE (type)); | |
1179 | ||
1180 | if (sparc64_floating_p (t)) | |
dda83cd7 | 1181 | return 1; |
1933fd8e | 1182 | } |
8b39fe56 MK |
1183 | if (sparc64_floating_p (type) && TYPE_LENGTH (type) == 16) |
1184 | return 1; | |
1185 | ||
1186 | if (sparc64_structure_or_union_p (type)) | |
1187 | { | |
1188 | int i; | |
1189 | ||
1f704f76 | 1190 | for (i = 0; i < type->num_fields (); i++) |
60af1db2 | 1191 | { |
940da03e | 1192 | struct type *subtype = check_typedef (type->field (i).type ()); |
60af1db2 MK |
1193 | |
1194 | if (sparc64_16_byte_align_p (subtype)) | |
1195 | return 1; | |
1196 | } | |
8b39fe56 MK |
1197 | } |
1198 | ||
1199 | return 0; | |
1200 | } | |
1201 | ||
1202 | /* Store floating fields of element ELEMENT of an "parameter array" | |
1203 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
30baf67b | 1204 | appropriate registers of REGCACHE. This function can be called |
8b39fe56 MK |
1205 | recursively and therefore handles floating types in addition to |
1206 | structures. */ | |
1207 | ||
1208 | static void | |
1209 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1210 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 | 1211 | { |
ac7936df | 1212 | struct gdbarch *gdbarch = regcache->arch (); |
fe10a582 DM |
1213 | int len = TYPE_LENGTH (type); |
1214 | ||
8b39fe56 MK |
1215 | gdb_assert (element < 16); |
1216 | ||
78134374 | 1217 | if (type->code () == TYPE_CODE_ARRAY) |
1933fd8e VM |
1218 | { |
1219 | gdb_byte buf[8]; | |
1220 | int regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
1221 | ||
1222 | valbuf += bitpos / 8; | |
1223 | if (len < 8) | |
dda83cd7 SM |
1224 | { |
1225 | memset (buf, 0, 8 - len); | |
1226 | memcpy (buf + 8 - len, valbuf, len); | |
1227 | valbuf = buf; | |
1228 | len = 8; | |
1229 | } | |
1933fd8e | 1230 | for (int n = 0; n < (len + 3) / 4; n++) |
dda83cd7 | 1231 | regcache->cooked_write (regnum + n, valbuf + n * 4); |
1933fd8e VM |
1232 | } |
1233 | else if (sparc64_floating_p (type) | |
fe10a582 | 1234 | || (sparc64_complex_floating_p (type) && len <= 16)) |
8b39fe56 | 1235 | { |
8b39fe56 MK |
1236 | int regnum; |
1237 | ||
1238 | if (len == 16) | |
1239 | { | |
1240 | gdb_assert (bitpos == 0); | |
1241 | gdb_assert ((element % 2) == 0); | |
1242 | ||
7a36499a | 1243 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM + element / 2; |
b66f5587 | 1244 | regcache->cooked_write (regnum, valbuf); |
8b39fe56 MK |
1245 | } |
1246 | else if (len == 8) | |
1247 | { | |
1248 | gdb_assert (bitpos == 0 || bitpos == 64); | |
1249 | ||
7a36499a | 1250 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
dda83cd7 | 1251 | + element + bitpos / 64; |
b66f5587 | 1252 | regcache->cooked_write (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1253 | } |
1254 | else | |
1255 | { | |
1256 | gdb_assert (len == 4); | |
1257 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
1258 | ||
1259 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
b66f5587 | 1260 | regcache->cooked_write (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1261 | } |
1262 | } | |
1263 | else if (sparc64_structure_or_union_p (type)) | |
1264 | { | |
1265 | int i; | |
1266 | ||
1f704f76 | 1267 | for (i = 0; i < type->num_fields (); i++) |
60af1db2 | 1268 | { |
940da03e | 1269 | struct type *subtype = check_typedef (type->field (i).type ()); |
b610c045 | 1270 | int subpos = bitpos + type->field (i).loc_bitpos (); |
60af1db2 MK |
1271 | |
1272 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
1273 | element, subpos); | |
1274 | } | |
200cc553 MK |
1275 | |
1276 | /* GCC has an interesting bug. If TYPE is a structure that has | |
dda83cd7 SM |
1277 | a single `float' member, GCC doesn't treat it as a structure |
1278 | at all, but rather as an ordinary `float' argument. This | |
1279 | argument will be stored in %f1, as required by the psABI. | |
1280 | However, as a member of a structure the psABI requires it to | |
1281 | be stored in %f0. This bug is present in GCC 3.3.2, but | |
1282 | probably in older releases to. To appease GCC, if a | |
1283 | structure has only a single `float' member, we store its | |
1284 | value in %f1 too (we already have stored in %f0). */ | |
1f704f76 | 1285 | if (type->num_fields () == 1) |
200cc553 | 1286 | { |
940da03e | 1287 | struct type *subtype = check_typedef (type->field (0).type ()); |
200cc553 MK |
1288 | |
1289 | if (sparc64_floating_p (subtype) && TYPE_LENGTH (subtype) == 4) | |
b66f5587 | 1290 | regcache->cooked_write (SPARC_F1_REGNUM, valbuf); |
200cc553 | 1291 | } |
8b39fe56 MK |
1292 | } |
1293 | } | |
1294 | ||
1295 | /* Fetch floating fields from a variable of type TYPE from the | |
1296 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
1297 | in VALBUF. This function can be called recursively and therefore | |
1298 | handles floating types in addition to structures. */ | |
1299 | ||
1300 | static void | |
1301 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1302 | gdb_byte *valbuf, int bitpos) |
8b39fe56 | 1303 | { |
ac7936df | 1304 | struct gdbarch *gdbarch = regcache->arch (); |
7a36499a | 1305 | |
78134374 | 1306 | if (type->code () == TYPE_CODE_ARRAY) |
1933fd8e VM |
1307 | { |
1308 | int len = TYPE_LENGTH (type); | |
1309 | int regnum = SPARC_F0_REGNUM + bitpos / 32; | |
1310 | ||
1311 | valbuf += bitpos / 8; | |
1312 | if (len < 4) | |
dda83cd7 SM |
1313 | { |
1314 | gdb_byte buf[4]; | |
1315 | regcache->cooked_read (regnum, buf); | |
1316 | memcpy (valbuf, buf + 4 - len, len); | |
1317 | } | |
1933fd8e | 1318 | else |
dda83cd7 SM |
1319 | for (int i = 0; i < (len + 3) / 4; i++) |
1320 | regcache->cooked_read (regnum + i, valbuf + i * 4); | |
1933fd8e VM |
1321 | } |
1322 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1323 | { |
1324 | int len = TYPE_LENGTH (type); | |
1325 | int regnum; | |
1326 | ||
1327 | if (len == 16) | |
1328 | { | |
1329 | gdb_assert (bitpos == 0 || bitpos == 128); | |
1330 | ||
7a36499a | 1331 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
dda83cd7 | 1332 | + bitpos / 128; |
dca08e1f | 1333 | regcache->cooked_read (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1334 | } |
1335 | else if (len == 8) | |
1336 | { | |
1337 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
1338 | ||
7a36499a | 1339 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + bitpos / 64; |
dca08e1f | 1340 | regcache->cooked_read (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1341 | } |
1342 | else | |
1343 | { | |
1344 | gdb_assert (len == 4); | |
1345 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
1346 | ||
1347 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
dca08e1f | 1348 | regcache->cooked_read (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1349 | } |
1350 | } | |
1351 | else if (sparc64_structure_or_union_p (type)) | |
1352 | { | |
1353 | int i; | |
1354 | ||
1f704f76 | 1355 | for (i = 0; i < type->num_fields (); i++) |
60af1db2 | 1356 | { |
940da03e | 1357 | struct type *subtype = check_typedef (type->field (i).type ()); |
b610c045 | 1358 | int subpos = bitpos + type->field (i).loc_bitpos (); |
60af1db2 MK |
1359 | |
1360 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
1361 | } | |
8b39fe56 MK |
1362 | } |
1363 | } | |
1364 | ||
1365 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
1366 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
1367 | ||
1368 | static CORE_ADDR | |
1369 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
1370 | struct value **args, CORE_ADDR sp, | |
cf84fa6b AH |
1371 | function_call_return_method return_method, |
1372 | CORE_ADDR struct_addr) | |
8b39fe56 | 1373 | { |
ac7936df | 1374 | struct gdbarch *gdbarch = regcache->arch (); |
8b39fe56 MK |
1375 | /* Number of extended words in the "parameter array". */ |
1376 | int num_elements = 0; | |
1377 | int element = 0; | |
1378 | int i; | |
1379 | ||
1380 | /* Take BIAS into account. */ | |
1381 | sp += BIAS; | |
1382 | ||
1383 | /* First we calculate the number of extended words in the "parameter | |
1384 | array". While doing so we also convert some of the arguments. */ | |
1385 | ||
cf84fa6b | 1386 | if (return_method == return_method_struct) |
8b39fe56 MK |
1387 | num_elements++; |
1388 | ||
1389 | for (i = 0; i < nargs; i++) | |
1390 | { | |
4991999e | 1391 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
1392 | int len = TYPE_LENGTH (type); |
1393 | ||
fb57d452 MK |
1394 | if (sparc64_structure_or_union_p (type) |
1395 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 MK |
1396 | { |
1397 | /* Structure or Union arguments. */ | |
1398 | if (len <= 16) | |
1399 | { | |
1400 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
1401 | num_elements++; | |
1402 | num_elements += ((len + 7) / 8); | |
1403 | } | |
1404 | else | |
1405 | { | |
1406 | /* The psABI says that "Structures or unions larger than | |
1407 | sixteen bytes are copied by the caller and passed | |
1408 | indirectly; the caller will pass the address of a | |
1409 | correctly aligned structure value. This sixty-four | |
1410 | bit address will occupy one word in the parameter | |
1411 | array, and may be promoted to an %o register like any | |
1412 | other pointer value." Allocate memory for these | |
1413 | values on the stack. */ | |
1414 | sp -= len; | |
1415 | ||
1416 | /* Use 16-byte alignment for these values. That's | |
dda83cd7 SM |
1417 | always correct, and wasting a few bytes shouldn't be |
1418 | a problem. */ | |
8b39fe56 MK |
1419 | sp &= ~0xf; |
1420 | ||
50888e42 | 1421 | write_memory (sp, value_contents (args[i]).data (), len); |
8b39fe56 MK |
1422 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
1423 | num_elements++; | |
1424 | } | |
1425 | } | |
cdc7b32f | 1426 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1427 | { |
1428 | /* Floating arguments. */ | |
8b39fe56 MK |
1429 | if (len == 16) |
1430 | { | |
1431 | /* The psABI says that "Each quad-precision parameter | |
dda83cd7 SM |
1432 | value will be assigned to two extended words in the |
1433 | parameter array. */ | |
8b39fe56 MK |
1434 | num_elements += 2; |
1435 | ||
1436 | /* The psABI says that "Long doubles must be | |
dda83cd7 SM |
1437 | quad-aligned, and thus a hole might be introduced |
1438 | into the parameter array to force alignment." Skip | |
1439 | an element if necessary. */ | |
49caec94 | 1440 | if ((num_elements % 2) && sparc64_16_byte_align_p (type)) |
8b39fe56 MK |
1441 | num_elements++; |
1442 | } | |
1443 | else | |
1444 | num_elements++; | |
1445 | } | |
1446 | else | |
1447 | { | |
1448 | /* Integral and pointer arguments. */ | |
1449 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1450 | ||
1451 | /* The psABI says that "Each argument value of integral type | |
1452 | smaller than an extended word will be widened by the | |
1453 | caller to an extended word according to the signed-ness | |
1454 | of the argument type." */ | |
1455 | if (len < 8) | |
df4df182 UW |
1456 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
1457 | args[i]); | |
8b39fe56 MK |
1458 | num_elements++; |
1459 | } | |
1460 | } | |
1461 | ||
1462 | /* Allocate the "parameter array". */ | |
1463 | sp -= num_elements * 8; | |
1464 | ||
1465 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
1466 | sp &= ~0xf; | |
1467 | ||
85102364 | 1468 | /* Now we store the arguments in to the "parameter array". Some |
8b39fe56 MK |
1469 | Integer or Pointer arguments and Structure or Union arguments |
1470 | will be passed in %o registers. Some Floating arguments and | |
1471 | floating members of structures are passed in floating-point | |
1472 | registers. However, for functions with variable arguments, | |
1473 | floating arguments are stored in an %0 register, and for | |
1474 | functions without a prototype floating arguments are stored in | |
1475 | both a floating-point and an %o registers, or a floating-point | |
1476 | register and memory. To simplify the logic here we always pass | |
1477 | arguments in memory, an %o register, and a floating-point | |
1478 | register if appropriate. This should be no problem since the | |
1479 | contents of any unused memory or registers in the "parameter | |
1480 | array" are undefined. */ | |
1481 | ||
cf84fa6b | 1482 | if (return_method == return_method_struct) |
8b39fe56 MK |
1483 | { |
1484 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
1485 | element++; | |
1486 | } | |
1487 | ||
1488 | for (i = 0; i < nargs; i++) | |
1489 | { | |
50888e42 | 1490 | const gdb_byte *valbuf = value_contents (args[i]).data (); |
4991999e | 1491 | struct type *type = value_type (args[i]); |
8b39fe56 MK |
1492 | int len = TYPE_LENGTH (type); |
1493 | int regnum = -1; | |
e1613aba | 1494 | gdb_byte buf[16]; |
8b39fe56 | 1495 | |
fb57d452 MK |
1496 | if (sparc64_structure_or_union_p (type) |
1497 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 | 1498 | { |
49caec94 | 1499 | /* Structure, Union or long double Complex arguments. */ |
8b39fe56 MK |
1500 | gdb_assert (len <= 16); |
1501 | memset (buf, 0, sizeof (buf)); | |
cfcb22a5 SM |
1502 | memcpy (buf, valbuf, len); |
1503 | valbuf = buf; | |
8b39fe56 MK |
1504 | |
1505 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
1506 | element++; | |
1507 | ||
1508 | if (element < 6) | |
1509 | { | |
1510 | regnum = SPARC_O0_REGNUM + element; | |
1511 | if (len > 8 && element < 5) | |
b66f5587 | 1512 | regcache->cooked_write (regnum + 1, valbuf + 8); |
8b39fe56 MK |
1513 | } |
1514 | ||
1515 | if (element < 16) | |
1516 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
1517 | } | |
49caec94 JM |
1518 | else if (sparc64_complex_floating_p (type)) |
1519 | { | |
1520 | /* Float Complex or double Complex arguments. */ | |
1521 | if (element < 16) | |
1522 | { | |
7a36499a | 1523 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + element; |
49caec94 JM |
1524 | |
1525 | if (len == 16) | |
1526 | { | |
7a36499a | 1527 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D30_REGNUM) |
b66f5587 | 1528 | regcache->cooked_write (regnum + 1, valbuf + 8); |
7a36499a | 1529 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D10_REGNUM) |
b66f5587 SM |
1530 | regcache->cooked_write (SPARC_O0_REGNUM + element + 1, |
1531 | valbuf + 8); | |
49caec94 JM |
1532 | } |
1533 | } | |
1534 | } | |
1535 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1536 | { |
1537 | /* Floating arguments. */ | |
1538 | if (len == 16) | |
1539 | { | |
1540 | if (element % 2) | |
1541 | element++; | |
1542 | if (element < 16) | |
7a36499a | 1543 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
dda83cd7 | 1544 | + element / 2; |
8b39fe56 MK |
1545 | } |
1546 | else if (len == 8) | |
1547 | { | |
1548 | if (element < 16) | |
7a36499a | 1549 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
dda83cd7 | 1550 | + element; |
8b39fe56 | 1551 | } |
fe10a582 | 1552 | else if (len == 4) |
8b39fe56 MK |
1553 | { |
1554 | /* The psABI says "Each single-precision parameter value | |
dda83cd7 SM |
1555 | will be assigned to one extended word in the |
1556 | parameter array, and right-justified within that | |
1557 | word; the left half (even float register) is | |
1558 | undefined." Even though the psABI says that "the | |
1559 | left half is undefined", set it to zero here. */ | |
8b39fe56 | 1560 | memset (buf, 0, 4); |
8ada74e3 MK |
1561 | memcpy (buf + 4, valbuf, 4); |
1562 | valbuf = buf; | |
8b39fe56 MK |
1563 | len = 8; |
1564 | if (element < 16) | |
7a36499a | 1565 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
dda83cd7 | 1566 | + element; |
8b39fe56 MK |
1567 | } |
1568 | } | |
1569 | else | |
1570 | { | |
1571 | /* Integral and pointer arguments. */ | |
1572 | gdb_assert (len == 8); | |
1573 | if (element < 6) | |
1574 | regnum = SPARC_O0_REGNUM + element; | |
1575 | } | |
1576 | ||
1577 | if (regnum != -1) | |
1578 | { | |
b66f5587 | 1579 | regcache->cooked_write (regnum, valbuf); |
8b39fe56 MK |
1580 | |
1581 | /* If we're storing the value in a floating-point register, | |
dda83cd7 | 1582 | also store it in the corresponding %0 register(s). */ |
7a36499a | 1583 | if (regnum >= gdbarch_num_regs (gdbarch)) |
dda83cd7 SM |
1584 | { |
1585 | regnum -= gdbarch_num_regs (gdbarch); | |
1586 | ||
1587 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
1588 | { | |
1589 | gdb_assert (element < 6); | |
1590 | regnum = SPARC_O0_REGNUM + element; | |
1591 | regcache->cooked_write (regnum, valbuf); | |
1592 | } | |
1593 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
1594 | { | |
1595 | gdb_assert (element < 5); | |
1596 | regnum = SPARC_O0_REGNUM + element; | |
1597 | regcache->cooked_write (regnum, valbuf); | |
1598 | regcache->cooked_write (regnum + 1, valbuf + 8); | |
1599 | } | |
1600 | } | |
8b39fe56 MK |
1601 | } |
1602 | ||
c4f2d4d7 | 1603 | /* Always store the argument in memory. */ |
8b39fe56 MK |
1604 | write_memory (sp + element * 8, valbuf, len); |
1605 | element += ((len + 7) / 8); | |
1606 | } | |
1607 | ||
1608 | gdb_assert (element == num_elements); | |
1609 | ||
1610 | /* Take BIAS into account. */ | |
1611 | sp -= BIAS; | |
1612 | return sp; | |
1613 | } | |
1614 | ||
49a45ecf JB |
1615 | static CORE_ADDR |
1616 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
1617 | { | |
1618 | /* The ABI requires 16-byte alignment. */ | |
1619 | return address & ~0xf; | |
1620 | } | |
1621 | ||
8b39fe56 | 1622 | static CORE_ADDR |
7d9b040b | 1623 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
1624 | struct regcache *regcache, CORE_ADDR bp_addr, |
1625 | int nargs, struct value **args, CORE_ADDR sp, | |
cf84fa6b AH |
1626 | function_call_return_method return_method, |
1627 | CORE_ADDR struct_addr) | |
8b39fe56 MK |
1628 | { |
1629 | /* Set return address. */ | |
1630 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
1631 | ||
1632 | /* Set up function arguments. */ | |
cf84fa6b AH |
1633 | sp = sparc64_store_arguments (regcache, nargs, args, sp, return_method, |
1634 | struct_addr); | |
8b39fe56 MK |
1635 | |
1636 | /* Allocate the register save area. */ | |
1637 | sp -= 16 * 8; | |
1638 | ||
1639 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 1640 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
1641 | |
1642 | /* Finally, update the stack pointer. */ | |
1643 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
1644 | ||
5b2d44a0 | 1645 | return sp + BIAS; |
8b39fe56 MK |
1646 | } |
1647 | \f | |
1648 | ||
1649 | /* Extract from an array REGBUF containing the (raw) register state, a | |
1650 | function return value of TYPE, and copy that into VALBUF. */ | |
1651 | ||
1652 | static void | |
1653 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1654 | gdb_byte *valbuf) |
8b39fe56 MK |
1655 | { |
1656 | int len = TYPE_LENGTH (type); | |
e1613aba | 1657 | gdb_byte buf[32]; |
8b39fe56 MK |
1658 | int i; |
1659 | ||
1660 | if (sparc64_structure_or_union_p (type)) | |
1661 | { | |
1662 | /* Structure or Union return values. */ | |
1663 | gdb_assert (len <= 32); | |
1664 | ||
1665 | for (i = 0; i < ((len + 7) / 8); i++) | |
dca08e1f | 1666 | regcache->cooked_read (SPARC_O0_REGNUM + i, buf + i * 8); |
78134374 | 1667 | if (type->code () != TYPE_CODE_UNION) |
8b39fe56 MK |
1668 | sparc64_extract_floating_fields (regcache, type, buf, 0); |
1669 | memcpy (valbuf, buf, len); | |
1670 | } | |
cdc7b32f | 1671 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1672 | { |
1673 | /* Floating return values. */ | |
1674 | for (i = 0; i < len / 4; i++) | |
dca08e1f | 1675 | regcache->cooked_read (SPARC_F0_REGNUM + i, buf + i * 4); |
8b39fe56 MK |
1676 | memcpy (valbuf, buf, len); |
1677 | } | |
78134374 | 1678 | else if (type->code () == TYPE_CODE_ARRAY) |
4bd87714 JB |
1679 | { |
1680 | /* Small arrays are returned the same way as small structures. */ | |
1681 | gdb_assert (len <= 32); | |
1682 | ||
1683 | for (i = 0; i < ((len + 7) / 8); i++) | |
dca08e1f | 1684 | regcache->cooked_read (SPARC_O0_REGNUM + i, buf + i * 8); |
4bd87714 JB |
1685 | memcpy (valbuf, buf, len); |
1686 | } | |
8b39fe56 MK |
1687 | else |
1688 | { | |
1689 | /* Integral and pointer return values. */ | |
1690 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1691 | ||
1692 | /* Just stripping off any unused bytes should preserve the | |
dda83cd7 | 1693 | signed-ness just fine. */ |
dca08e1f | 1694 | regcache->cooked_read (SPARC_O0_REGNUM, buf); |
8b39fe56 MK |
1695 | memcpy (valbuf, buf + 8 - len, len); |
1696 | } | |
1697 | } | |
1698 | ||
1699 | /* Write into the appropriate registers a function return value stored | |
1700 | in VALBUF of type TYPE. */ | |
1701 | ||
1702 | static void | |
1703 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1704 | const gdb_byte *valbuf) |
8b39fe56 MK |
1705 | { |
1706 | int len = TYPE_LENGTH (type); | |
e1613aba | 1707 | gdb_byte buf[16]; |
8b39fe56 MK |
1708 | int i; |
1709 | ||
1710 | if (sparc64_structure_or_union_p (type)) | |
1711 | { | |
1712 | /* Structure or Union return values. */ | |
1713 | gdb_assert (len <= 32); | |
1714 | ||
1715 | /* Simplify matters by storing the complete value (including | |
dda83cd7 SM |
1716 | floating members) into %o0 and %o1. Floating members are |
1717 | also store in the appropriate floating-point registers. */ | |
8b39fe56 MK |
1718 | memset (buf, 0, sizeof (buf)); |
1719 | memcpy (buf, valbuf, len); | |
1720 | for (i = 0; i < ((len + 7) / 8); i++) | |
b66f5587 | 1721 | regcache->cooked_write (SPARC_O0_REGNUM + i, buf + i * 8); |
78134374 | 1722 | if (type->code () != TYPE_CODE_UNION) |
8b39fe56 MK |
1723 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); |
1724 | } | |
fe10a582 | 1725 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1726 | { |
1727 | /* Floating return values. */ | |
1728 | memcpy (buf, valbuf, len); | |
1729 | for (i = 0; i < len / 4; i++) | |
b66f5587 | 1730 | regcache->cooked_write (SPARC_F0_REGNUM + i, buf + i * 4); |
8b39fe56 | 1731 | } |
78134374 | 1732 | else if (type->code () == TYPE_CODE_ARRAY) |
4bd87714 JB |
1733 | { |
1734 | /* Small arrays are returned the same way as small structures. */ | |
1735 | gdb_assert (len <= 32); | |
1736 | ||
1737 | memset (buf, 0, sizeof (buf)); | |
1738 | memcpy (buf, valbuf, len); | |
1739 | for (i = 0; i < ((len + 7) / 8); i++) | |
b66f5587 | 1740 | regcache->cooked_write (SPARC_O0_REGNUM + i, buf + i * 8); |
4bd87714 | 1741 | } |
8b39fe56 MK |
1742 | else |
1743 | { | |
1744 | /* Integral and pointer return values. */ | |
1745 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1746 | ||
1747 | /* ??? Do we need to do any sign-extension here? */ | |
1748 | memset (buf, 0, 8); | |
1749 | memcpy (buf + 8 - len, valbuf, len); | |
b66f5587 | 1750 | regcache->cooked_write (SPARC_O0_REGNUM, buf); |
8b39fe56 MK |
1751 | } |
1752 | } | |
1753 | ||
60af1db2 | 1754 | static enum return_value_convention |
6a3a010b | 1755 | sparc64_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
1756 | struct type *type, struct regcache *regcache, |
1757 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1758 | { |
60af1db2 MK |
1759 | if (TYPE_LENGTH (type) > 32) |
1760 | return RETURN_VALUE_STRUCT_CONVENTION; | |
1761 | ||
1762 | if (readbuf) | |
1763 | sparc64_extract_return_value (type, regcache, readbuf); | |
1764 | if (writebuf) | |
1765 | sparc64_store_return_value (type, regcache, writebuf); | |
1766 | ||
1767 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1768 | } |
8b39fe56 | 1769 | \f |
8b39fe56 | 1770 | |
02a71ae8 MK |
1771 | static void |
1772 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1773 | struct dwarf2_frame_state_reg *reg, |
4a4e5149 | 1774 | struct frame_info *this_frame) |
02a71ae8 MK |
1775 | { |
1776 | switch (regnum) | |
1777 | { | |
1778 | case SPARC_G0_REGNUM: | |
1779 | /* Since %g0 is always zero, there is no point in saving it, and | |
1780 | people will be inclined omit it from the CFI. Make sure we | |
1781 | don't warn about that. */ | |
1782 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1783 | break; | |
1784 | case SPARC_SP_REGNUM: | |
1785 | reg->how = DWARF2_FRAME_REG_CFA; | |
1786 | break; | |
1787 | case SPARC64_PC_REGNUM: | |
1788 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1789 | reg->loc.offset = 8; | |
1790 | break; | |
1791 | case SPARC64_NPC_REGNUM: | |
1792 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1793 | reg->loc.offset = 12; | |
1794 | break; | |
1795 | } | |
1796 | } | |
1797 | ||
58afddc6 WP |
1798 | /* sparc64_addr_bits_remove - remove useless address bits */ |
1799 | ||
1800 | static CORE_ADDR | |
1801 | sparc64_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr) | |
1802 | { | |
1803 | return adi_normalize_address (addr); | |
1804 | } | |
1805 | ||
8b39fe56 | 1806 | void |
386c036b | 1807 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1808 | { |
345bd07c | 1809 | sparc_gdbarch_tdep *tdep = (sparc_gdbarch_tdep *) gdbarch_tdep (gdbarch); |
8b39fe56 | 1810 | |
386c036b MK |
1811 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1812 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
3f7b46f2 IR |
1813 | tdep->fpu_register_names = sparc64_fpu_register_names; |
1814 | tdep->fpu_registers_num = ARRAY_SIZE (sparc64_fpu_register_names); | |
1815 | tdep->cp0_register_names = sparc64_cp0_register_names; | |
1816 | tdep->cp0_registers_num = ARRAY_SIZE (sparc64_cp0_register_names); | |
8b39fe56 | 1817 | |
386c036b | 1818 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1819 | set_gdbarch_long_bit (gdbarch, 64); |
1820 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1821 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 | 1822 | |
53375380 PA |
1823 | set_gdbarch_wchar_bit (gdbarch, 16); |
1824 | set_gdbarch_wchar_signed (gdbarch, 0); | |
1825 | ||
8b39fe56 MK |
1826 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); |
1827 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1828 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1829 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
3f7b46f2 IR |
1830 | set_tdesc_pseudo_register_name (gdbarch, sparc64_pseudo_register_name); |
1831 | set_tdesc_pseudo_register_type (gdbarch, sparc64_pseudo_register_type); | |
8b39fe56 MK |
1832 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); |
1833 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1834 | ||
1835 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1836 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1837 | |
1838 | /* Call dummy code. */ | |
49a45ecf | 1839 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1840 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1841 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1842 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1843 | ||
60af1db2 | 1844 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1845 | set_gdbarch_stabs_argument_has_addr |
1846 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1847 | |
1848 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
c9cf6e20 | 1849 | set_gdbarch_stack_frame_destroyed_p (gdbarch, sparc_stack_frame_destroyed_p); |
8b39fe56 | 1850 | |
02a71ae8 MK |
1851 | /* Hook in the DWARF CFI frame unwinder. */ |
1852 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1853 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1854 | StackGhost issues have been resolved. */ | |
1855 | ||
236369e7 | 1856 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1857 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
58afddc6 WP |
1858 | |
1859 | set_gdbarch_addr_bits_remove (gdbarch, sparc64_addr_bits_remove); | |
386c036b MK |
1860 | } |
1861 | \f | |
8b39fe56 | 1862 | |
386c036b | 1863 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1864 | |
386c036b MK |
1865 | #define TSTATE_CWP 0x000000000000001fULL |
1866 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1867 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1868 | |
386c036b | 1869 | #define PSR_S 0x00000080 |
39b06c20 | 1870 | #ifndef PSR_ICC |
386c036b | 1871 | #define PSR_ICC 0x00f00000 |
39b06c20 | 1872 | #endif |
386c036b | 1873 | #define PSR_VERS 0x0f000000 |
39b06c20 | 1874 | #ifndef PSR_IMPL |
386c036b | 1875 | #define PSR_IMPL 0xf0000000 |
39b06c20 | 1876 | #endif |
386c036b MK |
1877 | #define PSR_V8PLUS 0xff000000 |
1878 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1879 | |
3567a8ea | 1880 | void |
b4fd25c9 | 1881 | sparc64_supply_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1882 | struct regcache *regcache, |
1883 | int regnum, const void *gregs) | |
8b39fe56 | 1884 | { |
ac7936df | 1885 | struct gdbarch *gdbarch = regcache->arch (); |
e17a4113 UW |
1886 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
1887 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1888 | const gdb_byte *regs = (const gdb_byte *) gregs; |
22e74ef9 | 1889 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1890 | int i; |
1891 | ||
386c036b | 1892 | if (sparc32) |
8b39fe56 | 1893 | { |
386c036b MK |
1894 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1895 | { | |
b4fd25c9 | 1896 | int offset = gregmap->r_tstate_offset; |
386c036b | 1897 | ULONGEST tstate, psr; |
e1613aba | 1898 | gdb_byte buf[4]; |
386c036b | 1899 | |
e17a4113 | 1900 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1901 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1902 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1903 | store_unsigned_integer (buf, 4, byte_order, psr); |
73e1c03f | 1904 | regcache->raw_supply (SPARC32_PSR_REGNUM, buf); |
386c036b MK |
1905 | } |
1906 | ||
1907 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
73e1c03f SM |
1908 | regcache->raw_supply (SPARC32_PC_REGNUM, |
1909 | regs + gregmap->r_pc_offset + 4); | |
386c036b MK |
1910 | |
1911 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
73e1c03f SM |
1912 | regcache->raw_supply (SPARC32_NPC_REGNUM, |
1913 | regs + gregmap->r_npc_offset + 4); | |
8b39fe56 | 1914 | |
386c036b | 1915 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1916 | { |
b4fd25c9 | 1917 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
73e1c03f | 1918 | regcache->raw_supply (SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1919 | } |
1920 | } | |
1921 | else | |
1922 | { | |
386c036b | 1923 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
73e1c03f SM |
1924 | regcache->raw_supply (SPARC64_STATE_REGNUM, |
1925 | regs + gregmap->r_tstate_offset); | |
8b39fe56 | 1926 | |
386c036b | 1927 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
73e1c03f SM |
1928 | regcache->raw_supply (SPARC64_PC_REGNUM, |
1929 | regs + gregmap->r_pc_offset); | |
386c036b MK |
1930 | |
1931 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
73e1c03f SM |
1932 | regcache->raw_supply (SPARC64_NPC_REGNUM, |
1933 | regs + gregmap->r_npc_offset); | |
386c036b MK |
1934 | |
1935 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1936 | { |
e1613aba | 1937 | gdb_byte buf[8]; |
386c036b MK |
1938 | |
1939 | memset (buf, 0, 8); | |
b4fd25c9 AA |
1940 | memcpy (buf + 8 - gregmap->r_y_size, |
1941 | regs + gregmap->r_y_offset, gregmap->r_y_size); | |
73e1c03f | 1942 | regcache->raw_supply (SPARC64_Y_REGNUM, buf); |
3567a8ea | 1943 | } |
8b39fe56 | 1944 | |
386c036b | 1945 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
b4fd25c9 | 1946 | && gregmap->r_fprs_offset != -1) |
73e1c03f SM |
1947 | regcache->raw_supply (SPARC64_FPRS_REGNUM, |
1948 | regs + gregmap->r_fprs_offset); | |
386c036b MK |
1949 | } |
1950 | ||
1951 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
73e1c03f | 1952 | regcache->raw_supply (SPARC_G0_REGNUM, &zero); |
386c036b MK |
1953 | |
1954 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1955 | { | |
b4fd25c9 | 1956 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1957 | |
1958 | if (sparc32) | |
1959 | offset += 4; | |
1960 | ||
1961 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1962 | { |
3567a8ea | 1963 | if (regnum == i || regnum == -1) |
73e1c03f | 1964 | regcache->raw_supply (i, regs + offset); |
386c036b MK |
1965 | offset += 8; |
1966 | } | |
1967 | } | |
1968 | ||
1969 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1970 | { | |
1971 | /* Not all of the register set variants include Locals and | |
dda83cd7 | 1972 | Inputs. For those that don't, we read them off the stack. */ |
b4fd25c9 | 1973 | if (gregmap->r_l0_offset == -1) |
386c036b MK |
1974 | { |
1975 | ULONGEST sp; | |
1976 | ||
1977 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1978 | sparc_supply_rwindow (regcache, sp, regnum); | |
1979 | } | |
1980 | else | |
1981 | { | |
b4fd25c9 | 1982 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1983 | |
1984 | if (sparc32) | |
1985 | offset += 4; | |
1986 | ||
1987 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1988 | { |
386c036b | 1989 | if (regnum == i || regnum == -1) |
73e1c03f | 1990 | regcache->raw_supply (i, regs + offset); |
386c036b | 1991 | offset += 8; |
3567a8ea | 1992 | } |
8b39fe56 MK |
1993 | } |
1994 | } | |
1995 | } | |
1996 | ||
1997 | void | |
b4fd25c9 | 1998 | sparc64_collect_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1999 | const struct regcache *regcache, |
2000 | int regnum, void *gregs) | |
8b39fe56 | 2001 | { |
ac7936df | 2002 | struct gdbarch *gdbarch = regcache->arch (); |
e17a4113 UW |
2003 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
2004 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 2005 | gdb_byte *regs = (gdb_byte *) gregs; |
3567a8ea MK |
2006 | int i; |
2007 | ||
386c036b | 2008 | if (sparc32) |
8b39fe56 | 2009 | { |
386c036b MK |
2010 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
2011 | { | |
b4fd25c9 | 2012 | int offset = gregmap->r_tstate_offset; |
386c036b | 2013 | ULONGEST tstate, psr; |
e1613aba | 2014 | gdb_byte buf[8]; |
386c036b | 2015 | |
e17a4113 | 2016 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
34a79281 | 2017 | regcache->raw_collect (SPARC32_PSR_REGNUM, buf); |
e17a4113 | 2018 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
2019 | tstate |= (psr & PSR_ICC) << 12; |
2020 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
2021 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 2022 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
2023 | memcpy (regs + offset, buf, 8); |
2024 | } | |
8b39fe56 | 2025 | |
386c036b | 2026 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
34a79281 SM |
2027 | regcache->raw_collect (SPARC32_PC_REGNUM, |
2028 | regs + gregmap->r_pc_offset + 4); | |
386c036b MK |
2029 | |
2030 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
34a79281 SM |
2031 | regcache->raw_collect (SPARC32_NPC_REGNUM, |
2032 | regs + gregmap->r_npc_offset + 4); | |
386c036b MK |
2033 | |
2034 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 2035 | { |
b4fd25c9 | 2036 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
34a79281 | 2037 | regcache->raw_collect (SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
2038 | } |
2039 | } | |
2040 | else | |
2041 | { | |
386c036b | 2042 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
34a79281 SM |
2043 | regcache->raw_collect (SPARC64_STATE_REGNUM, |
2044 | regs + gregmap->r_tstate_offset); | |
386c036b MK |
2045 | |
2046 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
34a79281 SM |
2047 | regcache->raw_collect (SPARC64_PC_REGNUM, |
2048 | regs + gregmap->r_pc_offset); | |
3567a8ea | 2049 | |
386c036b | 2050 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
34a79281 SM |
2051 | regcache->raw_collect (SPARC64_NPC_REGNUM, |
2052 | regs + gregmap->r_npc_offset); | |
3567a8ea | 2053 | |
386c036b | 2054 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 2055 | { |
e1613aba | 2056 | gdb_byte buf[8]; |
386c036b | 2057 | |
34a79281 | 2058 | regcache->raw_collect (SPARC64_Y_REGNUM, buf); |
b4fd25c9 AA |
2059 | memcpy (regs + gregmap->r_y_offset, |
2060 | buf + 8 - gregmap->r_y_size, gregmap->r_y_size); | |
386c036b MK |
2061 | } |
2062 | ||
2063 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
b4fd25c9 | 2064 | && gregmap->r_fprs_offset != -1) |
34a79281 SM |
2065 | regcache->raw_collect (SPARC64_FPRS_REGNUM, |
2066 | regs + gregmap->r_fprs_offset); | |
386c036b MK |
2067 | |
2068 | } | |
2069 | ||
2070 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
2071 | { | |
b4fd25c9 | 2072 | int offset = gregmap->r_g1_offset; |
386c036b MK |
2073 | |
2074 | if (sparc32) | |
2075 | offset += 4; | |
2076 | ||
2077 | /* %g0 is always zero. */ | |
2078 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
2079 | { | |
2080 | if (regnum == i || regnum == -1) | |
34a79281 | 2081 | regcache->raw_collect (i, regs + offset); |
386c036b MK |
2082 | offset += 8; |
2083 | } | |
2084 | } | |
2085 | ||
2086 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
2087 | { | |
2088 | /* Not all of the register set variants include Locals and | |
dda83cd7 | 2089 | Inputs. For those that don't, we read them off the stack. */ |
b4fd25c9 | 2090 | if (gregmap->r_l0_offset != -1) |
386c036b | 2091 | { |
b4fd25c9 | 2092 | int offset = gregmap->r_l0_offset; |
386c036b MK |
2093 | |
2094 | if (sparc32) | |
2095 | offset += 4; | |
2096 | ||
2097 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 2098 | { |
386c036b | 2099 | if (regnum == i || regnum == -1) |
34a79281 | 2100 | regcache->raw_collect (i, regs + offset); |
386c036b | 2101 | offset += 8; |
3567a8ea MK |
2102 | } |
2103 | } | |
8b39fe56 MK |
2104 | } |
2105 | } | |
8b39fe56 | 2106 | |
386c036b | 2107 | void |
b4fd25c9 | 2108 | sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2109 | struct regcache *regcache, |
386c036b MK |
2110 | int regnum, const void *fpregs) |
2111 | { | |
ac7936df | 2112 | int sparc32 = (gdbarch_ptr_bit (regcache->arch ()) == 32); |
19ba03f4 | 2113 | const gdb_byte *regs = (const gdb_byte *) fpregs; |
386c036b MK |
2114 | int i; |
2115 | ||
2116 | for (i = 0; i < 32; i++) | |
2117 | { | |
2118 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
73e1c03f | 2119 | regcache->raw_supply (SPARC_F0_REGNUM + i, |
34a79281 | 2120 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
2121 | } |
2122 | ||
2123 | if (sparc32) | |
2124 | { | |
2125 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
73e1c03f | 2126 | regcache->raw_supply (SPARC32_FSR_REGNUM, |
b4fd25c9 | 2127 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2128 | } |
2129 | else | |
2130 | { | |
2131 | for (i = 0; i < 16; i++) | |
2132 | { | |
2133 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
73e1c03f SM |
2134 | regcache->raw_supply |
2135 | (SPARC64_F32_REGNUM + i, | |
2136 | regs + fpregmap->r_f0_offset + (32 * 4) + (i * 8)); | |
386c036b MK |
2137 | } |
2138 | ||
2139 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
73e1c03f SM |
2140 | regcache->raw_supply (SPARC64_FSR_REGNUM, |
2141 | regs + fpregmap->r_fsr_offset); | |
386c036b MK |
2142 | } |
2143 | } | |
8b39fe56 MK |
2144 | |
2145 | void | |
b4fd25c9 | 2146 | sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2147 | const struct regcache *regcache, |
386c036b | 2148 | int regnum, void *fpregs) |
8b39fe56 | 2149 | { |
ac7936df | 2150 | int sparc32 = (gdbarch_ptr_bit (regcache->arch ()) == 32); |
19ba03f4 | 2151 | gdb_byte *regs = (gdb_byte *) fpregs; |
386c036b MK |
2152 | int i; |
2153 | ||
2154 | for (i = 0; i < 32; i++) | |
2155 | { | |
2156 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
34a79281 SM |
2157 | regcache->raw_collect (SPARC_F0_REGNUM + i, |
2158 | regs + fpregmap->r_f0_offset + (i * 4)); | |
386c036b MK |
2159 | } |
2160 | ||
2161 | if (sparc32) | |
2162 | { | |
2163 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
34a79281 SM |
2164 | regcache->raw_collect (SPARC32_FSR_REGNUM, |
2165 | regs + fpregmap->r_fsr_offset); | |
386c036b MK |
2166 | } |
2167 | else | |
2168 | { | |
2169 | for (i = 0; i < 16; i++) | |
2170 | { | |
2171 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
34a79281 SM |
2172 | regcache->raw_collect (SPARC64_F32_REGNUM + i, |
2173 | (regs + fpregmap->r_f0_offset | |
2174 | + (32 * 4) + (i * 8))); | |
386c036b MK |
2175 | } |
2176 | ||
2177 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
34a79281 SM |
2178 | regcache->raw_collect (SPARC64_FSR_REGNUM, |
2179 | regs + fpregmap->r_fsr_offset); | |
386c036b | 2180 | } |
8b39fe56 | 2181 | } |
fd936806 | 2182 | |
b4fd25c9 | 2183 | const struct sparc_fpregmap sparc64_bsd_fpregmap = |
db75c717 DM |
2184 | { |
2185 | 0 * 8, /* %f0 */ | |
2186 | 32 * 8, /* %fsr */ | |
2187 | }; |