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8b39fe56 MK |
1 | /* Target-dependent code for UltraSPARC. |
2 | ||
213516ef | 3 | Copyright (C) 2003-2023 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 | { | |
b872057a | 169 | fileio_error target_errno; |
58afddc6 WP |
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; | |
82d23ca8 | 217 | if (target_auxv_search (AT_ADI_BLKSZ, &value) <= 0) |
58afddc6 | 218 | return false; |
654670a4 | 219 | proc->stat.blksize = value; |
82d23ca8 | 220 | target_auxv_search (AT_ADI_NBITS, &value); |
654670a4 | 221 | proc->stat.nbits = value; |
58afddc6 WP |
222 | proc->stat.max_version = (1 << proc->stat.nbits) - 2; |
223 | proc->stat.is_avail = true; | |
224 | ||
225 | return proc->stat.is_avail; | |
226 | } | |
227 | ||
228 | /* Normalize a versioned address - a VA with ADI bits (63-60) set. */ | |
229 | ||
230 | static CORE_ADDR | |
231 | adi_normalize_address (CORE_ADDR addr) | |
232 | { | |
e99b03dc | 233 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
234 | |
235 | if (ast.nbits) | |
654670a4 WP |
236 | { |
237 | /* Clear upper bits. */ | |
238 | addr &= ((uint64_t) -1) >> ast.nbits; | |
239 | ||
240 | /* Sign extend. */ | |
241 | CORE_ADDR signbit = (uint64_t) 1 << (64 - ast.nbits - 1); | |
242 | return (addr ^ signbit) - signbit; | |
243 | } | |
58afddc6 WP |
244 | return addr; |
245 | } | |
246 | ||
247 | /* Align a normalized address - a VA with bit 59 sign extended into | |
248 | ADI bits. */ | |
249 | ||
250 | static CORE_ADDR | |
251 | adi_align_address (CORE_ADDR naddr) | |
252 | { | |
e99b03dc | 253 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
254 | |
255 | return (naddr - (naddr % ast.blksize)) / ast.blksize; | |
256 | } | |
257 | ||
258 | /* Convert a byte count to count at a ratio of 1:adi_blksz. */ | |
259 | ||
260 | static int | |
261 | adi_convert_byte_count (CORE_ADDR naddr, int nbytes, CORE_ADDR locl) | |
262 | { | |
e99b03dc | 263 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
264 | |
265 | return ((naddr + nbytes + ast.blksize - 1) / ast.blksize) - locl; | |
266 | } | |
267 | ||
268 | /* The /proc/[pid]/adi/tags file, which allows gdb to get/set ADI | |
269 | version in a target process, maps linearly to the address space | |
270 | of the target process at a ratio of 1:adi_blksz. | |
271 | ||
272 | A read (or write) at offset K in the file returns (or modifies) | |
273 | the ADI version tag stored in the cacheline containing address | |
274 | K * adi_blksz, encoded as 1 version tag per byte. The allowed | |
275 | version tag values are between 0 and adi_stat.max_version. */ | |
276 | ||
277 | static int | |
278 | adi_tag_fd (void) | |
279 | { | |
e99b03dc | 280 | pid_t pid = inferior_ptid.pid (); |
58afddc6 WP |
281 | sparc64_adi_info *proc = get_adi_info_proc (pid); |
282 | ||
283 | if (proc->stat.tag_fd != 0) | |
284 | return proc->stat.tag_fd; | |
285 | ||
286 | char cl_name[MAX_PROC_NAME_SIZE]; | |
39b06c20 | 287 | snprintf (cl_name, sizeof(cl_name), "/proc/%ld/adi/tags", (long) pid); |
b872057a | 288 | fileio_error target_errno; |
58afddc6 | 289 | proc->stat.tag_fd = target_fileio_open (NULL, cl_name, O_RDWR|O_EXCL, |
dda83cd7 | 290 | false, 0, &target_errno); |
58afddc6 WP |
291 | return proc->stat.tag_fd; |
292 | } | |
293 | ||
294 | /* Check if an address set is ADI enabled, using /proc/[pid]/adi/maps | |
295 | which was exported by the kernel and contains the currently ADI | |
296 | mapped memory regions and their access permissions. */ | |
297 | ||
298 | static bool | |
299 | adi_is_addr_mapped (CORE_ADDR vaddr, size_t cnt) | |
300 | { | |
301 | char filename[MAX_PROC_NAME_SIZE]; | |
302 | size_t i = 0; | |
303 | ||
e99b03dc | 304 | pid_t pid = inferior_ptid.pid (); |
39b06c20 | 305 | snprintf (filename, sizeof filename, "/proc/%ld/adi/maps", (long) pid); |
87028b87 TT |
306 | gdb::unique_xmalloc_ptr<char> data |
307 | = target_fileio_read_stralloc (NULL, filename); | |
58afddc6 WP |
308 | if (data) |
309 | { | |
58afddc6 | 310 | adi_stat_t adi_stat = get_adi_info (pid); |
ca3a04f6 CB |
311 | char *saveptr; |
312 | for (char *line = strtok_r (data.get (), "\n", &saveptr); | |
313 | line; | |
314 | line = strtok_r (NULL, "\n", &saveptr)) | |
dda83cd7 SM |
315 | { |
316 | ULONGEST addr, endaddr; | |
58afddc6 | 317 | |
dda83cd7 | 318 | read_maps_entry (line, &addr, &endaddr); |
58afddc6 | 319 | |
dda83cd7 SM |
320 | while (((vaddr + i) * adi_stat.blksize) >= addr |
321 | && ((vaddr + i) * adi_stat.blksize) < endaddr) | |
322 | { | |
323 | if (++i == cnt) | |
87028b87 | 324 | return true; |
dda83cd7 SM |
325 | } |
326 | } | |
58afddc6 | 327 | } |
492325c4 SM |
328 | else |
329 | warning (_("unable to open /proc file '%s'"), filename); | |
58afddc6 WP |
330 | |
331 | return false; | |
332 | } | |
333 | ||
334 | /* Read ADI version tag value for memory locations starting at "VADDR" | |
335 | for "SIZE" number of bytes. */ | |
336 | ||
337 | static int | |
7f6743fd | 338 | adi_read_versions (CORE_ADDR vaddr, size_t size, gdb_byte *tags) |
58afddc6 WP |
339 | { |
340 | int fd = adi_tag_fd (); | |
341 | if (fd == -1) | |
342 | return -1; | |
343 | ||
344 | if (!adi_is_addr_mapped (vaddr, size)) | |
345 | { | |
e99b03dc | 346 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
654670a4 | 347 | error(_("Address at %s is not in ADI maps"), |
dda83cd7 | 348 | paddress (target_gdbarch (), vaddr * ast.blksize)); |
58afddc6 WP |
349 | } |
350 | ||
b872057a | 351 | fileio_error target_errno; |
58afddc6 WP |
352 | return target_fileio_pread (fd, tags, size, vaddr, &target_errno); |
353 | } | |
354 | ||
355 | /* Write ADI version tag for memory locations starting at "VADDR" for | |
356 | "SIZE" number of bytes to "TAGS". */ | |
357 | ||
358 | static int | |
359 | adi_write_versions (CORE_ADDR vaddr, size_t size, unsigned char *tags) | |
360 | { | |
361 | int fd = adi_tag_fd (); | |
362 | if (fd == -1) | |
363 | return -1; | |
364 | ||
365 | if (!adi_is_addr_mapped (vaddr, size)) | |
366 | { | |
e99b03dc | 367 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
654670a4 | 368 | error(_("Address at %s is not in ADI maps"), |
dda83cd7 | 369 | paddress (target_gdbarch (), vaddr * ast.blksize)); |
58afddc6 WP |
370 | } |
371 | ||
b872057a | 372 | fileio_error target_errno; |
58afddc6 WP |
373 | return target_fileio_pwrite (fd, tags, size, vaddr, &target_errno); |
374 | } | |
375 | ||
376 | /* Print ADI version tag value in "TAGS" for memory locations starting | |
377 | at "VADDR" with number of "CNT". */ | |
378 | ||
379 | static void | |
7f6743fd | 380 | adi_print_versions (CORE_ADDR vaddr, size_t cnt, gdb_byte *tags) |
58afddc6 WP |
381 | { |
382 | int v_idx = 0; | |
383 | const int maxelts = 8; /* # of elements per line */ | |
384 | ||
e99b03dc | 385 | adi_stat_t adi_stat = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
386 | |
387 | while (cnt > 0) | |
388 | { | |
389 | QUIT; | |
6cb06a8c TT |
390 | gdb_printf ("%s:\t", |
391 | paddress (target_gdbarch (), vaddr * adi_stat.blksize)); | |
58afddc6 | 392 | for (int i = maxelts; i > 0 && cnt > 0; i--, cnt--) |
dda83cd7 SM |
393 | { |
394 | if (tags[v_idx] == 0xff) /* no version tag */ | |
6cb06a8c | 395 | gdb_printf ("-"); |
dda83cd7 | 396 | else |
6cb06a8c | 397 | gdb_printf ("%1X", tags[v_idx]); |
58afddc6 | 398 | if (cnt > 1) |
6cb06a8c | 399 | gdb_printf (" "); |
dda83cd7 SM |
400 | ++v_idx; |
401 | } | |
6cb06a8c | 402 | gdb_printf ("\n"); |
58afddc6 WP |
403 | vaddr += maxelts; |
404 | } | |
405 | } | |
406 | ||
407 | static void | |
408 | do_examine (CORE_ADDR start, int bcnt) | |
409 | { | |
410 | CORE_ADDR vaddr = adi_normalize_address (start); | |
58afddc6 WP |
411 | |
412 | CORE_ADDR vstart = adi_align_address (vaddr); | |
413 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
7f6743fd TT |
414 | gdb::def_vector<gdb_byte> buf (cnt); |
415 | int read_cnt = adi_read_versions (vstart, cnt, buf.data ()); | |
58afddc6 WP |
416 | if (read_cnt == -1) |
417 | error (_("No ADI information")); | |
418 | else if (read_cnt < cnt) | |
654670a4 | 419 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 | 420 | |
7f6743fd | 421 | adi_print_versions (vstart, cnt, buf.data ()); |
58afddc6 WP |
422 | } |
423 | ||
424 | static void | |
425 | do_assign (CORE_ADDR start, size_t bcnt, int version) | |
426 | { | |
427 | CORE_ADDR vaddr = adi_normalize_address (start); | |
428 | ||
429 | CORE_ADDR vstart = adi_align_address (vaddr); | |
430 | int cnt = adi_convert_byte_count (vaddr, bcnt, vstart); | |
431 | std::vector<unsigned char> buf (cnt, version); | |
432 | int set_cnt = adi_write_versions (vstart, cnt, buf.data ()); | |
433 | ||
434 | if (set_cnt == -1) | |
435 | error (_("No ADI information")); | |
436 | else if (set_cnt < cnt) | |
654670a4 | 437 | error(_("No ADI information at %s"), paddress (target_gdbarch (), vaddr)); |
58afddc6 WP |
438 | |
439 | } | |
440 | ||
441 | /* ADI examine version tag command. | |
442 | ||
443 | Command syntax: | |
444 | ||
65e65158 | 445 | adi (examine|x)[/COUNT] [ADDR] */ |
58afddc6 WP |
446 | |
447 | static void | |
5fed81ff | 448 | adi_examine_command (const char *args, int from_tty) |
58afddc6 WP |
449 | { |
450 | /* make sure program is active and adi is available */ | |
55f6301a | 451 | if (!target_has_execution ()) |
58afddc6 WP |
452 | error (_("ADI command requires a live process/thread")); |
453 | ||
454 | if (!adi_available ()) | |
455 | error (_("No ADI information")); | |
456 | ||
58afddc6 | 457 | int cnt = 1; |
5fed81ff | 458 | const char *p = args; |
58afddc6 WP |
459 | if (p && *p == '/') |
460 | { | |
461 | p++; | |
462 | cnt = get_number (&p); | |
463 | } | |
464 | ||
465 | CORE_ADDR next_address = 0; | |
466 | if (p != 0 && *p != 0) | |
467 | next_address = parse_and_eval_address (p); | |
468 | if (!cnt || !next_address) | |
65e65158 | 469 | error (_("Usage: adi examine|x[/COUNT] [ADDR]")); |
58afddc6 WP |
470 | |
471 | do_examine (next_address, cnt); | |
472 | } | |
473 | ||
474 | /* ADI assign version tag command. | |
475 | ||
476 | Command syntax: | |
477 | ||
65e65158 | 478 | adi (assign|a)[/COUNT] ADDR = VERSION */ |
58afddc6 WP |
479 | |
480 | static void | |
5fed81ff | 481 | adi_assign_command (const char *args, int from_tty) |
58afddc6 | 482 | { |
65e65158 TT |
483 | static const char *adi_usage |
484 | = N_("Usage: adi assign|a[/COUNT] ADDR = VERSION"); | |
485 | ||
58afddc6 | 486 | /* make sure program is active and adi is available */ |
55f6301a | 487 | if (!target_has_execution ()) |
58afddc6 WP |
488 | error (_("ADI command requires a live process/thread")); |
489 | ||
490 | if (!adi_available ()) | |
491 | error (_("No ADI information")); | |
492 | ||
5fed81ff | 493 | const char *exp = args; |
58afddc6 | 494 | if (exp == 0) |
65e65158 | 495 | error_no_arg (_(adi_usage)); |
58afddc6 WP |
496 | |
497 | char *q = (char *) strchr (exp, '='); | |
498 | if (q) | |
499 | *q++ = 0; | |
500 | else | |
65e65158 | 501 | error ("%s", _(adi_usage)); |
58afddc6 WP |
502 | |
503 | size_t cnt = 1; | |
5fed81ff | 504 | const char *p = args; |
58afddc6 WP |
505 | if (exp && *exp == '/') |
506 | { | |
507 | p = exp + 1; | |
508 | cnt = get_number (&p); | |
509 | } | |
510 | ||
511 | CORE_ADDR next_address = 0; | |
512 | if (p != 0 && *p != 0) | |
513 | next_address = parse_and_eval_address (p); | |
514 | else | |
65e65158 | 515 | error ("%s", _(adi_usage)); |
58afddc6 WP |
516 | |
517 | int version = 0; | |
518 | if (q != NULL) /* parse version tag */ | |
519 | { | |
e99b03dc | 520 | adi_stat_t ast = get_adi_info (inferior_ptid.pid ()); |
58afddc6 WP |
521 | version = parse_and_eval_long (q); |
522 | if (version < 0 || version > ast.max_version) | |
dda83cd7 | 523 | error (_("Invalid ADI version tag %d"), version); |
58afddc6 WP |
524 | } |
525 | ||
526 | do_assign (next_address, cnt, version); | |
527 | } | |
528 | ||
6c265988 | 529 | void _initialize_sparc64_adi_tdep (); |
58afddc6 | 530 | void |
6c265988 | 531 | _initialize_sparc64_adi_tdep () |
58afddc6 | 532 | { |
0743fc83 TT |
533 | add_basic_prefix_cmd ("adi", class_support, |
534 | _("ADI version related commands."), | |
2f822da5 | 535 | &sparc64adilist, 0, &cmdlist); |
5e84b7ee SM |
536 | cmd_list_element *adi_examine_cmd |
537 | = add_cmd ("examine", class_support, adi_examine_command, | |
538 | _("Examine ADI versions."), &sparc64adilist); | |
539 | add_alias_cmd ("x", adi_examine_cmd, no_class, 1, &sparc64adilist); | |
58afddc6 | 540 | add_cmd ("assign", class_support, adi_assign_command, |
dda83cd7 | 541 | _("Assign ADI versions."), &sparc64adilist); |
58afddc6 WP |
542 | |
543 | } | |
544 | \f | |
545 | ||
8b39fe56 MK |
546 | /* The functions on this page are intended to be used to classify |
547 | function arguments. */ | |
548 | ||
8b39fe56 MK |
549 | /* Check whether TYPE is "Integral or Pointer". */ |
550 | ||
551 | static int | |
552 | sparc64_integral_or_pointer_p (const struct type *type) | |
553 | { | |
78134374 | 554 | switch (type->code ()) |
8b39fe56 MK |
555 | { |
556 | case TYPE_CODE_INT: | |
557 | case TYPE_CODE_BOOL: | |
558 | case TYPE_CODE_CHAR: | |
559 | case TYPE_CODE_ENUM: | |
560 | case TYPE_CODE_RANGE: | |
561 | { | |
df86565b | 562 | int len = type->length (); |
8b39fe56 MK |
563 | gdb_assert (len == 1 || len == 2 || len == 4 || len == 8); |
564 | } | |
565 | return 1; | |
566 | case TYPE_CODE_PTR: | |
567 | case TYPE_CODE_REF: | |
aa006118 | 568 | case TYPE_CODE_RVALUE_REF: |
8b39fe56 | 569 | { |
df86565b | 570 | int len = type->length (); |
8b39fe56 MK |
571 | gdb_assert (len == 8); |
572 | } | |
573 | return 1; | |
574 | default: | |
575 | break; | |
576 | } | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
581 | /* Check whether TYPE is "Floating". */ | |
582 | ||
583 | static int | |
584 | sparc64_floating_p (const struct type *type) | |
585 | { | |
78134374 | 586 | switch (type->code ()) |
8b39fe56 MK |
587 | { |
588 | case TYPE_CODE_FLT: | |
589 | { | |
df86565b | 590 | int len = type->length (); |
8b39fe56 MK |
591 | gdb_assert (len == 4 || len == 8 || len == 16); |
592 | } | |
593 | return 1; | |
594 | default: | |
595 | break; | |
596 | } | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
fe10a582 DM |
601 | /* Check whether TYPE is "Complex Floating". */ |
602 | ||
603 | static int | |
604 | sparc64_complex_floating_p (const struct type *type) | |
605 | { | |
78134374 | 606 | switch (type->code ()) |
fe10a582 DM |
607 | { |
608 | case TYPE_CODE_COMPLEX: | |
609 | { | |
df86565b | 610 | int len = type->length (); |
fe10a582 DM |
611 | gdb_assert (len == 8 || len == 16 || len == 32); |
612 | } | |
613 | return 1; | |
614 | default: | |
615 | break; | |
616 | } | |
617 | ||
618 | return 0; | |
619 | } | |
620 | ||
0497f5b0 JB |
621 | /* Check whether TYPE is "Structure or Union". |
622 | ||
623 | In terms of Ada subprogram calls, arrays are treated the same as | |
624 | struct and union types. So this function also returns non-zero | |
625 | for array types. */ | |
8b39fe56 MK |
626 | |
627 | static int | |
628 | sparc64_structure_or_union_p (const struct type *type) | |
629 | { | |
78134374 | 630 | switch (type->code ()) |
8b39fe56 MK |
631 | { |
632 | case TYPE_CODE_STRUCT: | |
633 | case TYPE_CODE_UNION: | |
0497f5b0 | 634 | case TYPE_CODE_ARRAY: |
8b39fe56 MK |
635 | return 1; |
636 | default: | |
637 | break; | |
638 | } | |
639 | ||
640 | return 0; | |
641 | } | |
fd936806 MK |
642 | \f |
643 | ||
209bd28e | 644 | /* Construct types for ISA-specific registers. */ |
fd936806 | 645 | |
209bd28e UW |
646 | static struct type * |
647 | sparc64_pstate_type (struct gdbarch *gdbarch) | |
648 | { | |
08106042 | 649 | sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch); |
fd936806 | 650 | |
209bd28e UW |
651 | if (!tdep->sparc64_pstate_type) |
652 | { | |
653 | struct type *type; | |
654 | ||
77b7c781 | 655 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_pstate", 64); |
209bd28e UW |
656 | append_flags_type_flag (type, 0, "AG"); |
657 | append_flags_type_flag (type, 1, "IE"); | |
658 | append_flags_type_flag (type, 2, "PRIV"); | |
659 | append_flags_type_flag (type, 3, "AM"); | |
660 | append_flags_type_flag (type, 4, "PEF"); | |
661 | append_flags_type_flag (type, 5, "RED"); | |
662 | append_flags_type_flag (type, 8, "TLE"); | |
663 | append_flags_type_flag (type, 9, "CLE"); | |
664 | append_flags_type_flag (type, 10, "PID0"); | |
665 | append_flags_type_flag (type, 11, "PID1"); | |
666 | ||
667 | tdep->sparc64_pstate_type = type; | |
668 | } | |
fd936806 | 669 | |
209bd28e UW |
670 | return tdep->sparc64_pstate_type; |
671 | } | |
fd936806 | 672 | |
5badf10a IR |
673 | static struct type * |
674 | sparc64_ccr_type (struct gdbarch *gdbarch) | |
675 | { | |
08106042 | 676 | sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch); |
5badf10a IR |
677 | |
678 | if (tdep->sparc64_ccr_type == NULL) | |
679 | { | |
680 | struct type *type; | |
681 | ||
77b7c781 | 682 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_ccr", 64); |
5badf10a IR |
683 | append_flags_type_flag (type, 0, "icc.c"); |
684 | append_flags_type_flag (type, 1, "icc.v"); | |
685 | append_flags_type_flag (type, 2, "icc.z"); | |
686 | append_flags_type_flag (type, 3, "icc.n"); | |
687 | append_flags_type_flag (type, 4, "xcc.c"); | |
688 | append_flags_type_flag (type, 5, "xcc.v"); | |
689 | append_flags_type_flag (type, 6, "xcc.z"); | |
690 | append_flags_type_flag (type, 7, "xcc.n"); | |
691 | ||
692 | tdep->sparc64_ccr_type = type; | |
693 | } | |
694 | ||
695 | return tdep->sparc64_ccr_type; | |
696 | } | |
697 | ||
209bd28e UW |
698 | static struct type * |
699 | sparc64_fsr_type (struct gdbarch *gdbarch) | |
700 | { | |
08106042 | 701 | sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch); |
209bd28e UW |
702 | |
703 | if (!tdep->sparc64_fsr_type) | |
704 | { | |
705 | struct type *type; | |
706 | ||
77b7c781 | 707 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fsr", 64); |
5badf10a IR |
708 | append_flags_type_flag (type, 0, "NXC"); |
709 | append_flags_type_flag (type, 1, "DZC"); | |
710 | append_flags_type_flag (type, 2, "UFC"); | |
711 | append_flags_type_flag (type, 3, "OFC"); | |
712 | append_flags_type_flag (type, 4, "NVC"); | |
713 | append_flags_type_flag (type, 5, "NXA"); | |
714 | append_flags_type_flag (type, 6, "DZA"); | |
715 | append_flags_type_flag (type, 7, "UFA"); | |
716 | append_flags_type_flag (type, 8, "OFA"); | |
717 | append_flags_type_flag (type, 9, "NVA"); | |
209bd28e UW |
718 | append_flags_type_flag (type, 22, "NS"); |
719 | append_flags_type_flag (type, 23, "NXM"); | |
720 | append_flags_type_flag (type, 24, "DZM"); | |
721 | append_flags_type_flag (type, 25, "UFM"); | |
722 | append_flags_type_flag (type, 26, "OFM"); | |
723 | append_flags_type_flag (type, 27, "NVM"); | |
724 | ||
725 | tdep->sparc64_fsr_type = type; | |
726 | } | |
727 | ||
728 | return tdep->sparc64_fsr_type; | |
729 | } | |
730 | ||
731 | static struct type * | |
732 | sparc64_fprs_type (struct gdbarch *gdbarch) | |
fd936806 | 733 | { |
08106042 | 734 | sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch); |
209bd28e UW |
735 | |
736 | if (!tdep->sparc64_fprs_type) | |
737 | { | |
738 | struct type *type; | |
739 | ||
77b7c781 | 740 | type = arch_flags_type (gdbarch, "builtin_type_sparc64_fprs", 64); |
209bd28e UW |
741 | append_flags_type_flag (type, 0, "DL"); |
742 | append_flags_type_flag (type, 1, "DU"); | |
743 | append_flags_type_flag (type, 2, "FEF"); | |
744 | ||
745 | tdep->sparc64_fprs_type = type; | |
746 | } | |
747 | ||
748 | return tdep->sparc64_fprs_type; | |
fd936806 | 749 | } |
8b39fe56 | 750 | |
209bd28e | 751 | |
8b39fe56 | 752 | /* Register information. */ |
7a36499a IR |
753 | #define SPARC64_FPU_REGISTERS \ |
754 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ | |
755 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
756 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
757 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
758 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", \ | |
759 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62" | |
760 | #define SPARC64_CP0_REGISTERS \ | |
761 | "pc", "npc", \ | |
762 | /* FIXME: Give "state" a name until we start using register groups. */ \ | |
763 | "state", \ | |
764 | "fsr", \ | |
765 | "fprs", \ | |
766 | "y" | |
8b39fe56 | 767 | |
27087b7f TT |
768 | static const char * const sparc64_fpu_register_names[] = { |
769 | SPARC64_FPU_REGISTERS | |
770 | }; | |
771 | static const char * const sparc64_cp0_register_names[] = { | |
772 | SPARC64_CP0_REGISTERS | |
773 | }; | |
3f7b46f2 | 774 | |
27087b7f | 775 | static const char * const sparc64_register_names[] = |
8b39fe56 | 776 | { |
7a36499a IR |
777 | SPARC_CORE_REGISTERS, |
778 | SPARC64_FPU_REGISTERS, | |
779 | SPARC64_CP0_REGISTERS | |
8b39fe56 MK |
780 | }; |
781 | ||
782 | /* Total number of registers. */ | |
6707b003 | 783 | #define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_names) |
8b39fe56 MK |
784 | |
785 | /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating | |
786 | registers as "psuedo" registers. */ | |
787 | ||
27087b7f | 788 | static const char * const sparc64_pseudo_register_names[] = |
8b39fe56 | 789 | { |
6707b003 UW |
790 | "cwp", "pstate", "asi", "ccr", |
791 | ||
792 | "d0", "d2", "d4", "d6", "d8", "d10", "d12", "d14", | |
793 | "d16", "d18", "d20", "d22", "d24", "d26", "d28", "d30", | |
794 | "d32", "d34", "d36", "d38", "d40", "d42", "d44", "d46", | |
795 | "d48", "d50", "d52", "d54", "d56", "d58", "d60", "d62", | |
796 | ||
797 | "q0", "q4", "q8", "q12", "q16", "q20", "q24", "q28", | |
798 | "q32", "q36", "q40", "q44", "q48", "q52", "q56", "q60", | |
8b39fe56 MK |
799 | }; |
800 | ||
801 | /* Total number of pseudo registers. */ | |
6707b003 | 802 | #define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_names) |
8b39fe56 | 803 | |
7a36499a IR |
804 | /* Return the name of pseudo register REGNUM. */ |
805 | ||
806 | static const char * | |
807 | sparc64_pseudo_register_name (struct gdbarch *gdbarch, int regnum) | |
808 | { | |
809 | regnum -= gdbarch_num_regs (gdbarch); | |
810 | ||
9b9e61c7 AB |
811 | gdb_assert (regnum < SPARC64_NUM_PSEUDO_REGS); |
812 | return sparc64_pseudo_register_names[regnum]; | |
7a36499a IR |
813 | } |
814 | ||
8b39fe56 MK |
815 | /* Return the name of register REGNUM. */ |
816 | ||
817 | static const char * | |
d93859e2 | 818 | sparc64_register_name (struct gdbarch *gdbarch, int regnum) |
8b39fe56 | 819 | { |
3f7b46f2 IR |
820 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
821 | return tdesc_register_name (gdbarch, regnum); | |
822 | ||
7a36499a | 823 | if (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch)) |
6707b003 | 824 | return sparc64_register_names[regnum]; |
8b39fe56 | 825 | |
7a36499a IR |
826 | return sparc64_pseudo_register_name (gdbarch, regnum); |
827 | } | |
828 | ||
829 | /* Return the GDB type object for the "standard" data type of data in | |
830 | pseudo register REGNUM. */ | |
831 | ||
832 | static struct type * | |
833 | sparc64_pseudo_register_type (struct gdbarch *gdbarch, int regnum) | |
834 | { | |
835 | regnum -= gdbarch_num_regs (gdbarch); | |
836 | ||
837 | if (regnum == SPARC64_CWP_REGNUM) | |
838 | return builtin_type (gdbarch)->builtin_int64; | |
839 | if (regnum == SPARC64_PSTATE_REGNUM) | |
840 | return sparc64_pstate_type (gdbarch); | |
841 | if (regnum == SPARC64_ASI_REGNUM) | |
842 | return builtin_type (gdbarch)->builtin_int64; | |
843 | if (regnum == SPARC64_CCR_REGNUM) | |
5badf10a | 844 | return sparc64_ccr_type (gdbarch); |
7a36499a IR |
845 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D62_REGNUM) |
846 | return builtin_type (gdbarch)->builtin_double; | |
847 | if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
848 | return builtin_type (gdbarch)->builtin_long_double; | |
8b39fe56 | 849 | |
f34652de | 850 | internal_error (_("sparc64_pseudo_register_type: bad register number %d"), |
dda83cd7 | 851 | regnum); |
8b39fe56 MK |
852 | } |
853 | ||
854 | /* Return the GDB type object for the "standard" data type of data in | |
c378eb4e | 855 | register REGNUM. */ |
8b39fe56 MK |
856 | |
857 | static struct type * | |
858 | sparc64_register_type (struct gdbarch *gdbarch, int regnum) | |
859 | { | |
3f7b46f2 IR |
860 | if (tdesc_has_registers (gdbarch_target_desc (gdbarch))) |
861 | return tdesc_register_type (gdbarch, regnum); | |
862 | ||
6707b003 | 863 | /* Raw registers. */ |
6707b003 | 864 | if (regnum == SPARC_SP_REGNUM || regnum == SPARC_FP_REGNUM) |
0dfff4cb | 865 | return builtin_type (gdbarch)->builtin_data_ptr; |
6707b003 | 866 | if (regnum >= SPARC_G0_REGNUM && regnum <= SPARC_I7_REGNUM) |
df4df182 | 867 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 868 | if (regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM) |
0dfff4cb | 869 | return builtin_type (gdbarch)->builtin_float; |
6707b003 | 870 | if (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM) |
0dfff4cb | 871 | return builtin_type (gdbarch)->builtin_double; |
6707b003 | 872 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) |
0dfff4cb | 873 | return builtin_type (gdbarch)->builtin_func_ptr; |
6707b003 UW |
874 | /* This raw register contains the contents of %cwp, %pstate, %asi |
875 | and %ccr as laid out in a %tstate register. */ | |
876 | if (regnum == SPARC64_STATE_REGNUM) | |
df4df182 | 877 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 | 878 | if (regnum == SPARC64_FSR_REGNUM) |
209bd28e | 879 | return sparc64_fsr_type (gdbarch); |
6707b003 | 880 | if (regnum == SPARC64_FPRS_REGNUM) |
209bd28e | 881 | return sparc64_fprs_type (gdbarch); |
6707b003 UW |
882 | /* "Although Y is a 64-bit register, its high-order 32 bits are |
883 | reserved and always read as 0." */ | |
884 | if (regnum == SPARC64_Y_REGNUM) | |
df4df182 | 885 | return builtin_type (gdbarch)->builtin_int64; |
6707b003 UW |
886 | |
887 | /* Pseudo registers. */ | |
7a36499a IR |
888 | if (regnum >= gdbarch_num_regs (gdbarch)) |
889 | return sparc64_pseudo_register_type (gdbarch, regnum); | |
6707b003 | 890 | |
f34652de | 891 | internal_error (_("invalid regnum")); |
8b39fe56 MK |
892 | } |
893 | ||
05d1431c | 894 | static enum register_status |
8b39fe56 | 895 | sparc64_pseudo_register_read (struct gdbarch *gdbarch, |
849d0ba8 | 896 | readable_regcache *regcache, |
e1613aba | 897 | int regnum, gdb_byte *buf) |
8b39fe56 | 898 | { |
e17a4113 | 899 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
05d1431c PA |
900 | enum register_status status; |
901 | ||
7a36499a | 902 | regnum -= gdbarch_num_regs (gdbarch); |
8b39fe56 MK |
903 | |
904 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
905 | { | |
906 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
03f50fc8 | 907 | status = regcache->raw_read (regnum, buf); |
05d1431c | 908 | if (status == REG_VALID) |
03f50fc8 | 909 | status = regcache->raw_read (regnum + 1, buf + 4); |
05d1431c | 910 | return status; |
8b39fe56 MK |
911 | } |
912 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
913 | { | |
914 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
03f50fc8 | 915 | return regcache->raw_read (regnum, buf); |
8b39fe56 MK |
916 | } |
917 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
918 | { | |
919 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
05d1431c | 920 | |
03f50fc8 | 921 | status = regcache->raw_read (regnum, buf); |
05d1431c | 922 | if (status == REG_VALID) |
03f50fc8 | 923 | status = regcache->raw_read (regnum + 1, buf + 4); |
05d1431c | 924 | if (status == REG_VALID) |
03f50fc8 | 925 | status = regcache->raw_read (regnum + 2, buf + 8); |
05d1431c | 926 | if (status == REG_VALID) |
03f50fc8 | 927 | status = regcache->raw_read (regnum + 3, buf + 12); |
05d1431c PA |
928 | |
929 | return status; | |
8b39fe56 MK |
930 | } |
931 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
932 | { | |
933 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
05d1431c | 934 | |
03f50fc8 | 935 | status = regcache->raw_read (regnum, buf); |
05d1431c | 936 | if (status == REG_VALID) |
03f50fc8 | 937 | status = regcache->raw_read (regnum + 1, buf + 8); |
05d1431c PA |
938 | |
939 | return status; | |
8b39fe56 MK |
940 | } |
941 | else if (regnum == SPARC64_CWP_REGNUM | |
942 | || regnum == SPARC64_PSTATE_REGNUM | |
943 | || regnum == SPARC64_ASI_REGNUM | |
944 | || regnum == SPARC64_CCR_REGNUM) | |
945 | { | |
946 | ULONGEST state; | |
947 | ||
03f50fc8 | 948 | status = regcache->raw_read (SPARC64_STATE_REGNUM, &state); |
05d1431c PA |
949 | if (status != REG_VALID) |
950 | return status; | |
951 | ||
8b39fe56 MK |
952 | switch (regnum) |
953 | { | |
3567a8ea | 954 | case SPARC64_CWP_REGNUM: |
8b39fe56 MK |
955 | state = (state >> 0) & ((1 << 5) - 1); |
956 | break; | |
3567a8ea | 957 | case SPARC64_PSTATE_REGNUM: |
8b39fe56 MK |
958 | state = (state >> 8) & ((1 << 12) - 1); |
959 | break; | |
3567a8ea | 960 | case SPARC64_ASI_REGNUM: |
8b39fe56 MK |
961 | state = (state >> 24) & ((1 << 8) - 1); |
962 | break; | |
3567a8ea | 963 | case SPARC64_CCR_REGNUM: |
8b39fe56 MK |
964 | state = (state >> 32) & ((1 << 8) - 1); |
965 | break; | |
966 | } | |
e17a4113 | 967 | store_unsigned_integer (buf, 8, byte_order, state); |
8b39fe56 | 968 | } |
05d1431c PA |
969 | |
970 | return REG_VALID; | |
8b39fe56 MK |
971 | } |
972 | ||
973 | static void | |
974 | sparc64_pseudo_register_write (struct gdbarch *gdbarch, | |
975 | struct regcache *regcache, | |
e1613aba | 976 | int regnum, const gdb_byte *buf) |
8b39fe56 | 977 | { |
e17a4113 | 978 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
7a36499a IR |
979 | |
980 | regnum -= gdbarch_num_regs (gdbarch); | |
8b39fe56 MK |
981 | |
982 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D30_REGNUM) | |
983 | { | |
984 | regnum = SPARC_F0_REGNUM + 2 * (regnum - SPARC64_D0_REGNUM); | |
10eaee5f SM |
985 | regcache->raw_write (regnum, buf); |
986 | regcache->raw_write (regnum + 1, buf + 4); | |
8b39fe56 MK |
987 | } |
988 | else if (regnum >= SPARC64_D32_REGNUM && regnum <= SPARC64_D62_REGNUM) | |
989 | { | |
990 | regnum = SPARC64_F32_REGNUM + (regnum - SPARC64_D32_REGNUM); | |
10eaee5f | 991 | regcache->raw_write (regnum, buf); |
8b39fe56 MK |
992 | } |
993 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q28_REGNUM) | |
994 | { | |
995 | regnum = SPARC_F0_REGNUM + 4 * (regnum - SPARC64_Q0_REGNUM); | |
10eaee5f SM |
996 | regcache->raw_write (regnum, buf); |
997 | regcache->raw_write (regnum + 1, buf + 4); | |
998 | regcache->raw_write (regnum + 2, buf + 8); | |
999 | regcache->raw_write (regnum + 3, buf + 12); | |
8b39fe56 MK |
1000 | } |
1001 | else if (regnum >= SPARC64_Q32_REGNUM && regnum <= SPARC64_Q60_REGNUM) | |
1002 | { | |
1003 | regnum = SPARC64_F32_REGNUM + 2 * (regnum - SPARC64_Q32_REGNUM); | |
10eaee5f SM |
1004 | regcache->raw_write (regnum, buf); |
1005 | regcache->raw_write (regnum + 1, buf + 8); | |
8b39fe56 | 1006 | } |
3567a8ea MK |
1007 | else if (regnum == SPARC64_CWP_REGNUM |
1008 | || regnum == SPARC64_PSTATE_REGNUM | |
1009 | || regnum == SPARC64_ASI_REGNUM | |
1010 | || regnum == SPARC64_CCR_REGNUM) | |
1011 | { | |
1012 | ULONGEST state, bits; | |
1013 | ||
1014 | regcache_raw_read_unsigned (regcache, SPARC64_STATE_REGNUM, &state); | |
e17a4113 | 1015 | bits = extract_unsigned_integer (buf, 8, byte_order); |
3567a8ea MK |
1016 | switch (regnum) |
1017 | { | |
1018 | case SPARC64_CWP_REGNUM: | |
1019 | state |= ((bits & ((1 << 5) - 1)) << 0); | |
1020 | break; | |
1021 | case SPARC64_PSTATE_REGNUM: | |
1022 | state |= ((bits & ((1 << 12) - 1)) << 8); | |
1023 | break; | |
1024 | case SPARC64_ASI_REGNUM: | |
1025 | state |= ((bits & ((1 << 8) - 1)) << 24); | |
1026 | break; | |
1027 | case SPARC64_CCR_REGNUM: | |
1028 | state |= ((bits & ((1 << 8) - 1)) << 32); | |
1029 | break; | |
1030 | } | |
1031 | regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state); | |
1032 | } | |
8b39fe56 | 1033 | } |
8b39fe56 MK |
1034 | \f |
1035 | ||
8b39fe56 MK |
1036 | /* Return PC of first real instruction of the function starting at |
1037 | START_PC. */ | |
1038 | ||
1039 | static CORE_ADDR | |
6093d2eb | 1040 | sparc64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc) |
8b39fe56 MK |
1041 | { |
1042 | struct symtab_and_line sal; | |
1043 | CORE_ADDR func_start, func_end; | |
386c036b | 1044 | struct sparc_frame_cache cache; |
8b39fe56 MK |
1045 | |
1046 | /* This is the preferred method, find the end of the prologue by | |
1047 | using the debugging information. */ | |
1048 | if (find_pc_partial_function (start_pc, NULL, &func_start, &func_end)) | |
1049 | { | |
1050 | sal = find_pc_line (func_start, 0); | |
1051 | ||
1052 | if (sal.end < func_end | |
1053 | && start_pc <= sal.end) | |
1054 | return sal.end; | |
1055 | } | |
1056 | ||
be8626e0 MD |
1057 | return sparc_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffULL, |
1058 | &cache); | |
8b39fe56 MK |
1059 | } |
1060 | ||
1061 | /* Normal frames. */ | |
1062 | ||
386c036b | 1063 | static struct sparc_frame_cache * |
bd2b40ac | 1064 | sparc64_frame_cache (frame_info_ptr this_frame, void **this_cache) |
8b39fe56 | 1065 | { |
236369e7 | 1066 | return sparc_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1067 | } |
1068 | ||
1069 | static void | |
bd2b40ac | 1070 | sparc64_frame_this_id (frame_info_ptr this_frame, void **this_cache, |
8b39fe56 MK |
1071 | struct frame_id *this_id) |
1072 | { | |
386c036b | 1073 | struct sparc_frame_cache *cache = |
236369e7 | 1074 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1075 | |
1076 | /* This marks the outermost frame. */ | |
1077 | if (cache->base == 0) | |
1078 | return; | |
1079 | ||
1080 | (*this_id) = frame_id_build (cache->base, cache->pc); | |
1081 | } | |
1082 | ||
236369e7 | 1083 | static struct value * |
bd2b40ac | 1084 | sparc64_frame_prev_register (frame_info_ptr this_frame, void **this_cache, |
236369e7 | 1085 | int regnum) |
8b39fe56 | 1086 | { |
e17a4113 | 1087 | struct gdbarch *gdbarch = get_frame_arch (this_frame); |
386c036b | 1088 | struct sparc_frame_cache *cache = |
236369e7 | 1089 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 MK |
1090 | |
1091 | if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM) | |
1092 | { | |
236369e7 | 1093 | CORE_ADDR pc = (regnum == SPARC64_NPC_REGNUM) ? 4 : 0; |
8b39fe56 | 1094 | |
369c397b JB |
1095 | regnum = |
1096 | (cache->copied_regs_mask & 0x80) ? SPARC_I7_REGNUM : SPARC_O7_REGNUM; | |
236369e7 JB |
1097 | pc += get_frame_register_unsigned (this_frame, regnum) + 8; |
1098 | return frame_unwind_got_constant (this_frame, regnum, pc); | |
8b39fe56 MK |
1099 | } |
1100 | ||
f700a364 MK |
1101 | /* Handle StackGhost. */ |
1102 | { | |
e17a4113 | 1103 | ULONGEST wcookie = sparc_fetch_wcookie (gdbarch); |
f700a364 MK |
1104 | |
1105 | if (wcookie != 0 && !cache->frameless_p && regnum == SPARC_I7_REGNUM) | |
1106 | { | |
dda83cd7 SM |
1107 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
1108 | ULONGEST i7; | |
236369e7 | 1109 | |
dda83cd7 SM |
1110 | /* Read the value in from memory. */ |
1111 | i7 = get_frame_memory_unsigned (this_frame, addr, 8); | |
1112 | return frame_unwind_got_constant (this_frame, regnum, i7 ^ wcookie); | |
f700a364 MK |
1113 | } |
1114 | } | |
1115 | ||
369c397b | 1116 | /* The previous frame's `local' and `in' registers may have been saved |
8b39fe56 | 1117 | in the register save area. */ |
369c397b JB |
1118 | if (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM |
1119 | && (cache->saved_regs_mask & (1 << (regnum - SPARC_L0_REGNUM)))) | |
8b39fe56 | 1120 | { |
236369e7 | 1121 | CORE_ADDR addr = cache->base + (regnum - SPARC_L0_REGNUM) * 8; |
8b39fe56 | 1122 | |
236369e7 | 1123 | return frame_unwind_got_memory (this_frame, regnum, addr); |
8b39fe56 MK |
1124 | } |
1125 | ||
369c397b JB |
1126 | /* The previous frame's `out' registers may be accessible as the current |
1127 | frame's `in' registers. */ | |
1128 | if (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM | |
1129 | && (cache->copied_regs_mask & (1 << (regnum - SPARC_O0_REGNUM)))) | |
8b39fe56 MK |
1130 | regnum += (SPARC_I0_REGNUM - SPARC_O0_REGNUM); |
1131 | ||
236369e7 | 1132 | return frame_unwind_got_register (this_frame, regnum, regnum); |
8b39fe56 MK |
1133 | } |
1134 | ||
1135 | static const struct frame_unwind sparc64_frame_unwind = | |
1136 | { | |
a154d838 | 1137 | "sparc64 prologue", |
8b39fe56 | 1138 | NORMAL_FRAME, |
8fbca658 | 1139 | default_frame_unwind_stop_reason, |
8b39fe56 | 1140 | sparc64_frame_this_id, |
236369e7 JB |
1141 | sparc64_frame_prev_register, |
1142 | NULL, | |
1143 | default_frame_sniffer | |
8b39fe56 | 1144 | }; |
8b39fe56 MK |
1145 | \f |
1146 | ||
1147 | static CORE_ADDR | |
bd2b40ac | 1148 | sparc64_frame_base_address (frame_info_ptr this_frame, void **this_cache) |
8b39fe56 | 1149 | { |
386c036b | 1150 | struct sparc_frame_cache *cache = |
236369e7 | 1151 | sparc64_frame_cache (this_frame, this_cache); |
8b39fe56 | 1152 | |
5b2d44a0 | 1153 | return cache->base; |
8b39fe56 MK |
1154 | } |
1155 | ||
1156 | static const struct frame_base sparc64_frame_base = | |
1157 | { | |
1158 | &sparc64_frame_unwind, | |
1159 | sparc64_frame_base_address, | |
1160 | sparc64_frame_base_address, | |
1161 | sparc64_frame_base_address | |
1162 | }; | |
8b39fe56 MK |
1163 | \f |
1164 | /* Check whether TYPE must be 16-byte aligned. */ | |
1165 | ||
1166 | static int | |
1167 | sparc64_16_byte_align_p (struct type *type) | |
1168 | { | |
78134374 | 1169 | if (type->code () == TYPE_CODE_ARRAY) |
1933fd8e | 1170 | { |
27710edb | 1171 | struct type *t = check_typedef (type->target_type ()); |
1933fd8e VM |
1172 | |
1173 | if (sparc64_floating_p (t)) | |
dda83cd7 | 1174 | return 1; |
1933fd8e | 1175 | } |
df86565b | 1176 | if (sparc64_floating_p (type) && type->length () == 16) |
8b39fe56 MK |
1177 | return 1; |
1178 | ||
1179 | if (sparc64_structure_or_union_p (type)) | |
1180 | { | |
1181 | int i; | |
1182 | ||
1f704f76 | 1183 | for (i = 0; i < type->num_fields (); i++) |
60af1db2 | 1184 | { |
940da03e | 1185 | struct type *subtype = check_typedef (type->field (i).type ()); |
60af1db2 MK |
1186 | |
1187 | if (sparc64_16_byte_align_p (subtype)) | |
1188 | return 1; | |
1189 | } | |
8b39fe56 MK |
1190 | } |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | /* Store floating fields of element ELEMENT of an "parameter array" | |
1196 | that has type TYPE and is stored at BITPOS in VALBUF in the | |
30baf67b | 1197 | appropriate registers of REGCACHE. This function can be called |
8b39fe56 MK |
1198 | recursively and therefore handles floating types in addition to |
1199 | structures. */ | |
1200 | ||
1201 | static void | |
1202 | sparc64_store_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1203 | const gdb_byte *valbuf, int element, int bitpos) |
8b39fe56 | 1204 | { |
ac7936df | 1205 | struct gdbarch *gdbarch = regcache->arch (); |
df86565b | 1206 | int len = type->length (); |
fe10a582 | 1207 | |
8b39fe56 MK |
1208 | gdb_assert (element < 16); |
1209 | ||
78134374 | 1210 | if (type->code () == TYPE_CODE_ARRAY) |
1933fd8e VM |
1211 | { |
1212 | gdb_byte buf[8]; | |
1213 | int regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
1214 | ||
1215 | valbuf += bitpos / 8; | |
1216 | if (len < 8) | |
dda83cd7 SM |
1217 | { |
1218 | memset (buf, 0, 8 - len); | |
1219 | memcpy (buf + 8 - len, valbuf, len); | |
1220 | valbuf = buf; | |
1221 | len = 8; | |
1222 | } | |
1933fd8e | 1223 | for (int n = 0; n < (len + 3) / 4; n++) |
dda83cd7 | 1224 | regcache->cooked_write (regnum + n, valbuf + n * 4); |
1933fd8e VM |
1225 | } |
1226 | else if (sparc64_floating_p (type) | |
fe10a582 | 1227 | || (sparc64_complex_floating_p (type) && len <= 16)) |
8b39fe56 | 1228 | { |
8b39fe56 MK |
1229 | int regnum; |
1230 | ||
1231 | if (len == 16) | |
1232 | { | |
1233 | gdb_assert (bitpos == 0); | |
1234 | gdb_assert ((element % 2) == 0); | |
1235 | ||
7a36499a | 1236 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM + element / 2; |
b66f5587 | 1237 | regcache->cooked_write (regnum, valbuf); |
8b39fe56 MK |
1238 | } |
1239 | else if (len == 8) | |
1240 | { | |
1241 | gdb_assert (bitpos == 0 || bitpos == 64); | |
1242 | ||
7a36499a | 1243 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
dda83cd7 | 1244 | + element + bitpos / 64; |
b66f5587 | 1245 | regcache->cooked_write (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1246 | } |
1247 | else | |
1248 | { | |
1249 | gdb_assert (len == 4); | |
1250 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 128); | |
1251 | ||
1252 | regnum = SPARC_F0_REGNUM + element * 2 + bitpos / 32; | |
b66f5587 | 1253 | regcache->cooked_write (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1254 | } |
1255 | } | |
1256 | else if (sparc64_structure_or_union_p (type)) | |
1257 | { | |
1258 | int i; | |
1259 | ||
1f704f76 | 1260 | for (i = 0; i < type->num_fields (); i++) |
60af1db2 | 1261 | { |
940da03e | 1262 | struct type *subtype = check_typedef (type->field (i).type ()); |
b610c045 | 1263 | int subpos = bitpos + type->field (i).loc_bitpos (); |
60af1db2 MK |
1264 | |
1265 | sparc64_store_floating_fields (regcache, subtype, valbuf, | |
1266 | element, subpos); | |
1267 | } | |
200cc553 MK |
1268 | |
1269 | /* GCC has an interesting bug. If TYPE is a structure that has | |
dda83cd7 SM |
1270 | a single `float' member, GCC doesn't treat it as a structure |
1271 | at all, but rather as an ordinary `float' argument. This | |
1272 | argument will be stored in %f1, as required by the psABI. | |
1273 | However, as a member of a structure the psABI requires it to | |
1274 | be stored in %f0. This bug is present in GCC 3.3.2, but | |
1275 | probably in older releases to. To appease GCC, if a | |
1276 | structure has only a single `float' member, we store its | |
1277 | value in %f1 too (we already have stored in %f0). */ | |
1f704f76 | 1278 | if (type->num_fields () == 1) |
200cc553 | 1279 | { |
940da03e | 1280 | struct type *subtype = check_typedef (type->field (0).type ()); |
200cc553 | 1281 | |
df86565b | 1282 | if (sparc64_floating_p (subtype) && subtype->length () == 4) |
b66f5587 | 1283 | regcache->cooked_write (SPARC_F1_REGNUM, valbuf); |
200cc553 | 1284 | } |
8b39fe56 MK |
1285 | } |
1286 | } | |
1287 | ||
1288 | /* Fetch floating fields from a variable of type TYPE from the | |
1289 | appropriate registers for BITPOS in REGCACHE and store it at BITPOS | |
1290 | in VALBUF. This function can be called recursively and therefore | |
1291 | handles floating types in addition to structures. */ | |
1292 | ||
1293 | static void | |
1294 | sparc64_extract_floating_fields (struct regcache *regcache, struct type *type, | |
e1613aba | 1295 | gdb_byte *valbuf, int bitpos) |
8b39fe56 | 1296 | { |
ac7936df | 1297 | struct gdbarch *gdbarch = regcache->arch (); |
7a36499a | 1298 | |
78134374 | 1299 | if (type->code () == TYPE_CODE_ARRAY) |
1933fd8e | 1300 | { |
df86565b | 1301 | int len = type->length (); |
1933fd8e VM |
1302 | int regnum = SPARC_F0_REGNUM + bitpos / 32; |
1303 | ||
1304 | valbuf += bitpos / 8; | |
1305 | if (len < 4) | |
dda83cd7 SM |
1306 | { |
1307 | gdb_byte buf[4]; | |
1308 | regcache->cooked_read (regnum, buf); | |
1309 | memcpy (valbuf, buf + 4 - len, len); | |
1310 | } | |
1933fd8e | 1311 | else |
dda83cd7 SM |
1312 | for (int i = 0; i < (len + 3) / 4; i++) |
1313 | regcache->cooked_read (regnum + i, valbuf + i * 4); | |
1933fd8e VM |
1314 | } |
1315 | else if (sparc64_floating_p (type)) | |
8b39fe56 | 1316 | { |
df86565b | 1317 | int len = type->length (); |
8b39fe56 MK |
1318 | int regnum; |
1319 | ||
1320 | if (len == 16) | |
1321 | { | |
1322 | gdb_assert (bitpos == 0 || bitpos == 128); | |
1323 | ||
7a36499a | 1324 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
dda83cd7 | 1325 | + bitpos / 128; |
dca08e1f | 1326 | regcache->cooked_read (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1327 | } |
1328 | else if (len == 8) | |
1329 | { | |
1330 | gdb_assert (bitpos % 64 == 0 && bitpos >= 0 && bitpos < 256); | |
1331 | ||
7a36499a | 1332 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + bitpos / 64; |
dca08e1f | 1333 | regcache->cooked_read (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1334 | } |
1335 | else | |
1336 | { | |
1337 | gdb_assert (len == 4); | |
1338 | gdb_assert (bitpos % 32 == 0 && bitpos >= 0 && bitpos < 256); | |
1339 | ||
1340 | regnum = SPARC_F0_REGNUM + bitpos / 32; | |
dca08e1f | 1341 | regcache->cooked_read (regnum, valbuf + (bitpos / 8)); |
8b39fe56 MK |
1342 | } |
1343 | } | |
1344 | else if (sparc64_structure_or_union_p (type)) | |
1345 | { | |
1346 | int i; | |
1347 | ||
1f704f76 | 1348 | for (i = 0; i < type->num_fields (); i++) |
60af1db2 | 1349 | { |
940da03e | 1350 | struct type *subtype = check_typedef (type->field (i).type ()); |
b610c045 | 1351 | int subpos = bitpos + type->field (i).loc_bitpos (); |
60af1db2 MK |
1352 | |
1353 | sparc64_extract_floating_fields (regcache, subtype, valbuf, subpos); | |
1354 | } | |
8b39fe56 MK |
1355 | } |
1356 | } | |
1357 | ||
1358 | /* Store the NARGS arguments ARGS and STRUCT_ADDR (if STRUCT_RETURN is | |
1359 | non-zero) in REGCACHE and on the stack (starting from address SP). */ | |
1360 | ||
1361 | static CORE_ADDR | |
1362 | sparc64_store_arguments (struct regcache *regcache, int nargs, | |
1363 | struct value **args, CORE_ADDR sp, | |
cf84fa6b AH |
1364 | function_call_return_method return_method, |
1365 | CORE_ADDR struct_addr) | |
8b39fe56 | 1366 | { |
ac7936df | 1367 | struct gdbarch *gdbarch = regcache->arch (); |
8b39fe56 MK |
1368 | /* Number of extended words in the "parameter array". */ |
1369 | int num_elements = 0; | |
1370 | int element = 0; | |
1371 | int i; | |
1372 | ||
1373 | /* Take BIAS into account. */ | |
1374 | sp += BIAS; | |
1375 | ||
1376 | /* First we calculate the number of extended words in the "parameter | |
1377 | array". While doing so we also convert some of the arguments. */ | |
1378 | ||
cf84fa6b | 1379 | if (return_method == return_method_struct) |
8b39fe56 MK |
1380 | num_elements++; |
1381 | ||
1382 | for (i = 0; i < nargs; i++) | |
1383 | { | |
4991999e | 1384 | struct type *type = value_type (args[i]); |
df86565b | 1385 | int len = type->length (); |
8b39fe56 | 1386 | |
fb57d452 MK |
1387 | if (sparc64_structure_or_union_p (type) |
1388 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 MK |
1389 | { |
1390 | /* Structure or Union arguments. */ | |
1391 | if (len <= 16) | |
1392 | { | |
1393 | if (num_elements % 2 && sparc64_16_byte_align_p (type)) | |
1394 | num_elements++; | |
1395 | num_elements += ((len + 7) / 8); | |
1396 | } | |
1397 | else | |
1398 | { | |
1399 | /* The psABI says that "Structures or unions larger than | |
1400 | sixteen bytes are copied by the caller and passed | |
1401 | indirectly; the caller will pass the address of a | |
1402 | correctly aligned structure value. This sixty-four | |
1403 | bit address will occupy one word in the parameter | |
1404 | array, and may be promoted to an %o register like any | |
1405 | other pointer value." Allocate memory for these | |
1406 | values on the stack. */ | |
1407 | sp -= len; | |
1408 | ||
1409 | /* Use 16-byte alignment for these values. That's | |
dda83cd7 SM |
1410 | always correct, and wasting a few bytes shouldn't be |
1411 | a problem. */ | |
8b39fe56 MK |
1412 | sp &= ~0xf; |
1413 | ||
50888e42 | 1414 | write_memory (sp, value_contents (args[i]).data (), len); |
8b39fe56 MK |
1415 | args[i] = value_from_pointer (lookup_pointer_type (type), sp); |
1416 | num_elements++; | |
1417 | } | |
1418 | } | |
cdc7b32f | 1419 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1420 | { |
1421 | /* Floating arguments. */ | |
8b39fe56 MK |
1422 | if (len == 16) |
1423 | { | |
1424 | /* The psABI says that "Each quad-precision parameter | |
dda83cd7 SM |
1425 | value will be assigned to two extended words in the |
1426 | parameter array. */ | |
8b39fe56 MK |
1427 | num_elements += 2; |
1428 | ||
1429 | /* The psABI says that "Long doubles must be | |
dda83cd7 SM |
1430 | quad-aligned, and thus a hole might be introduced |
1431 | into the parameter array to force alignment." Skip | |
1432 | an element if necessary. */ | |
49caec94 | 1433 | if ((num_elements % 2) && sparc64_16_byte_align_p (type)) |
8b39fe56 MK |
1434 | num_elements++; |
1435 | } | |
1436 | else | |
1437 | num_elements++; | |
1438 | } | |
1439 | else | |
1440 | { | |
1441 | /* Integral and pointer arguments. */ | |
1442 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1443 | ||
1444 | /* The psABI says that "Each argument value of integral type | |
1445 | smaller than an extended word will be widened by the | |
1446 | caller to an extended word according to the signed-ness | |
1447 | of the argument type." */ | |
1448 | if (len < 8) | |
df4df182 UW |
1449 | args[i] = value_cast (builtin_type (gdbarch)->builtin_int64, |
1450 | args[i]); | |
8b39fe56 MK |
1451 | num_elements++; |
1452 | } | |
1453 | } | |
1454 | ||
1455 | /* Allocate the "parameter array". */ | |
1456 | sp -= num_elements * 8; | |
1457 | ||
1458 | /* The psABI says that "Every stack frame must be 16-byte aligned." */ | |
1459 | sp &= ~0xf; | |
1460 | ||
85102364 | 1461 | /* Now we store the arguments in to the "parameter array". Some |
8b39fe56 MK |
1462 | Integer or Pointer arguments and Structure or Union arguments |
1463 | will be passed in %o registers. Some Floating arguments and | |
1464 | floating members of structures are passed in floating-point | |
1465 | registers. However, for functions with variable arguments, | |
1466 | floating arguments are stored in an %0 register, and for | |
1467 | functions without a prototype floating arguments are stored in | |
1468 | both a floating-point and an %o registers, or a floating-point | |
1469 | register and memory. To simplify the logic here we always pass | |
1470 | arguments in memory, an %o register, and a floating-point | |
1471 | register if appropriate. This should be no problem since the | |
1472 | contents of any unused memory or registers in the "parameter | |
1473 | array" are undefined. */ | |
1474 | ||
cf84fa6b | 1475 | if (return_method == return_method_struct) |
8b39fe56 MK |
1476 | { |
1477 | regcache_cooked_write_unsigned (regcache, SPARC_O0_REGNUM, struct_addr); | |
1478 | element++; | |
1479 | } | |
1480 | ||
1481 | for (i = 0; i < nargs; i++) | |
1482 | { | |
50888e42 | 1483 | const gdb_byte *valbuf = value_contents (args[i]).data (); |
4991999e | 1484 | struct type *type = value_type (args[i]); |
df86565b | 1485 | int len = type->length (); |
8b39fe56 | 1486 | int regnum = -1; |
e1613aba | 1487 | gdb_byte buf[16]; |
8b39fe56 | 1488 | |
fb57d452 MK |
1489 | if (sparc64_structure_or_union_p (type) |
1490 | || (sparc64_complex_floating_p (type) && len == 32)) | |
8b39fe56 | 1491 | { |
49caec94 | 1492 | /* Structure, Union or long double Complex arguments. */ |
8b39fe56 MK |
1493 | gdb_assert (len <= 16); |
1494 | memset (buf, 0, sizeof (buf)); | |
cfcb22a5 SM |
1495 | memcpy (buf, valbuf, len); |
1496 | valbuf = buf; | |
8b39fe56 MK |
1497 | |
1498 | if (element % 2 && sparc64_16_byte_align_p (type)) | |
1499 | element++; | |
1500 | ||
1501 | if (element < 6) | |
1502 | { | |
1503 | regnum = SPARC_O0_REGNUM + element; | |
1504 | if (len > 8 && element < 5) | |
b66f5587 | 1505 | regcache->cooked_write (regnum + 1, valbuf + 8); |
8b39fe56 MK |
1506 | } |
1507 | ||
1508 | if (element < 16) | |
1509 | sparc64_store_floating_fields (regcache, type, valbuf, element, 0); | |
1510 | } | |
49caec94 JM |
1511 | else if (sparc64_complex_floating_p (type)) |
1512 | { | |
1513 | /* Float Complex or double Complex arguments. */ | |
1514 | if (element < 16) | |
1515 | { | |
7a36499a | 1516 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM + element; |
49caec94 JM |
1517 | |
1518 | if (len == 16) | |
1519 | { | |
7a36499a | 1520 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D30_REGNUM) |
b66f5587 | 1521 | regcache->cooked_write (regnum + 1, valbuf + 8); |
7a36499a | 1522 | if (regnum < gdbarch_num_regs (gdbarch) + SPARC64_D10_REGNUM) |
b66f5587 SM |
1523 | regcache->cooked_write (SPARC_O0_REGNUM + element + 1, |
1524 | valbuf + 8); | |
49caec94 JM |
1525 | } |
1526 | } | |
1527 | } | |
1528 | else if (sparc64_floating_p (type)) | |
8b39fe56 MK |
1529 | { |
1530 | /* Floating arguments. */ | |
1531 | if (len == 16) | |
1532 | { | |
1533 | if (element % 2) | |
1534 | element++; | |
1535 | if (element < 16) | |
7a36499a | 1536 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_Q0_REGNUM |
dda83cd7 | 1537 | + element / 2; |
8b39fe56 MK |
1538 | } |
1539 | else if (len == 8) | |
1540 | { | |
1541 | if (element < 16) | |
7a36499a | 1542 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
dda83cd7 | 1543 | + element; |
8b39fe56 | 1544 | } |
fe10a582 | 1545 | else if (len == 4) |
8b39fe56 MK |
1546 | { |
1547 | /* The psABI says "Each single-precision parameter value | |
dda83cd7 SM |
1548 | will be assigned to one extended word in the |
1549 | parameter array, and right-justified within that | |
1550 | word; the left half (even float register) is | |
1551 | undefined." Even though the psABI says that "the | |
1552 | left half is undefined", set it to zero here. */ | |
8b39fe56 | 1553 | memset (buf, 0, 4); |
8ada74e3 MK |
1554 | memcpy (buf + 4, valbuf, 4); |
1555 | valbuf = buf; | |
8b39fe56 MK |
1556 | len = 8; |
1557 | if (element < 16) | |
7a36499a | 1558 | regnum = gdbarch_num_regs (gdbarch) + SPARC64_D0_REGNUM |
dda83cd7 | 1559 | + element; |
8b39fe56 MK |
1560 | } |
1561 | } | |
1562 | else | |
1563 | { | |
1564 | /* Integral and pointer arguments. */ | |
1565 | gdb_assert (len == 8); | |
1566 | if (element < 6) | |
1567 | regnum = SPARC_O0_REGNUM + element; | |
1568 | } | |
1569 | ||
1570 | if (regnum != -1) | |
1571 | { | |
b66f5587 | 1572 | regcache->cooked_write (regnum, valbuf); |
8b39fe56 MK |
1573 | |
1574 | /* If we're storing the value in a floating-point register, | |
dda83cd7 | 1575 | also store it in the corresponding %0 register(s). */ |
7a36499a | 1576 | if (regnum >= gdbarch_num_regs (gdbarch)) |
dda83cd7 SM |
1577 | { |
1578 | regnum -= gdbarch_num_regs (gdbarch); | |
1579 | ||
1580 | if (regnum >= SPARC64_D0_REGNUM && regnum <= SPARC64_D10_REGNUM) | |
1581 | { | |
1582 | gdb_assert (element < 6); | |
1583 | regnum = SPARC_O0_REGNUM + element; | |
1584 | regcache->cooked_write (regnum, valbuf); | |
1585 | } | |
1586 | else if (regnum >= SPARC64_Q0_REGNUM && regnum <= SPARC64_Q8_REGNUM) | |
1587 | { | |
1588 | gdb_assert (element < 5); | |
1589 | regnum = SPARC_O0_REGNUM + element; | |
1590 | regcache->cooked_write (regnum, valbuf); | |
1591 | regcache->cooked_write (regnum + 1, valbuf + 8); | |
1592 | } | |
1593 | } | |
8b39fe56 MK |
1594 | } |
1595 | ||
c4f2d4d7 | 1596 | /* Always store the argument in memory. */ |
8b39fe56 MK |
1597 | write_memory (sp + element * 8, valbuf, len); |
1598 | element += ((len + 7) / 8); | |
1599 | } | |
1600 | ||
1601 | gdb_assert (element == num_elements); | |
1602 | ||
1603 | /* Take BIAS into account. */ | |
1604 | sp -= BIAS; | |
1605 | return sp; | |
1606 | } | |
1607 | ||
49a45ecf JB |
1608 | static CORE_ADDR |
1609 | sparc64_frame_align (struct gdbarch *gdbarch, CORE_ADDR address) | |
1610 | { | |
1611 | /* The ABI requires 16-byte alignment. */ | |
1612 | return address & ~0xf; | |
1613 | } | |
1614 | ||
8b39fe56 | 1615 | static CORE_ADDR |
7d9b040b | 1616 | sparc64_push_dummy_call (struct gdbarch *gdbarch, struct value *function, |
8b39fe56 MK |
1617 | struct regcache *regcache, CORE_ADDR bp_addr, |
1618 | int nargs, struct value **args, CORE_ADDR sp, | |
cf84fa6b AH |
1619 | function_call_return_method return_method, |
1620 | CORE_ADDR struct_addr) | |
8b39fe56 MK |
1621 | { |
1622 | /* Set return address. */ | |
1623 | regcache_cooked_write_unsigned (regcache, SPARC_O7_REGNUM, bp_addr - 8); | |
1624 | ||
1625 | /* Set up function arguments. */ | |
cf84fa6b AH |
1626 | sp = sparc64_store_arguments (regcache, nargs, args, sp, return_method, |
1627 | struct_addr); | |
8b39fe56 MK |
1628 | |
1629 | /* Allocate the register save area. */ | |
1630 | sp -= 16 * 8; | |
1631 | ||
1632 | /* Stack should be 16-byte aligned at this point. */ | |
3567a8ea | 1633 | gdb_assert ((sp + BIAS) % 16 == 0); |
8b39fe56 MK |
1634 | |
1635 | /* Finally, update the stack pointer. */ | |
1636 | regcache_cooked_write_unsigned (regcache, SPARC_SP_REGNUM, sp); | |
1637 | ||
5b2d44a0 | 1638 | return sp + BIAS; |
8b39fe56 MK |
1639 | } |
1640 | \f | |
1641 | ||
1642 | /* Extract from an array REGBUF containing the (raw) register state, a | |
1643 | function return value of TYPE, and copy that into VALBUF. */ | |
1644 | ||
1645 | static void | |
1646 | sparc64_extract_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1647 | gdb_byte *valbuf) |
8b39fe56 | 1648 | { |
df86565b | 1649 | int len = type->length (); |
e1613aba | 1650 | gdb_byte buf[32]; |
8b39fe56 MK |
1651 | int i; |
1652 | ||
1653 | if (sparc64_structure_or_union_p (type)) | |
1654 | { | |
1655 | /* Structure or Union return values. */ | |
1656 | gdb_assert (len <= 32); | |
1657 | ||
1658 | for (i = 0; i < ((len + 7) / 8); i++) | |
dca08e1f | 1659 | regcache->cooked_read (SPARC_O0_REGNUM + i, buf + i * 8); |
78134374 | 1660 | if (type->code () != TYPE_CODE_UNION) |
8b39fe56 MK |
1661 | sparc64_extract_floating_fields (regcache, type, buf, 0); |
1662 | memcpy (valbuf, buf, len); | |
1663 | } | |
cdc7b32f | 1664 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1665 | { |
1666 | /* Floating return values. */ | |
1667 | for (i = 0; i < len / 4; i++) | |
dca08e1f | 1668 | regcache->cooked_read (SPARC_F0_REGNUM + i, buf + i * 4); |
8b39fe56 MK |
1669 | memcpy (valbuf, buf, len); |
1670 | } | |
78134374 | 1671 | else if (type->code () == TYPE_CODE_ARRAY) |
4bd87714 JB |
1672 | { |
1673 | /* Small arrays are returned the same way as small structures. */ | |
1674 | gdb_assert (len <= 32); | |
1675 | ||
1676 | for (i = 0; i < ((len + 7) / 8); i++) | |
dca08e1f | 1677 | regcache->cooked_read (SPARC_O0_REGNUM + i, buf + i * 8); |
4bd87714 JB |
1678 | memcpy (valbuf, buf, len); |
1679 | } | |
8b39fe56 MK |
1680 | else |
1681 | { | |
1682 | /* Integral and pointer return values. */ | |
1683 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1684 | ||
1685 | /* Just stripping off any unused bytes should preserve the | |
dda83cd7 | 1686 | signed-ness just fine. */ |
dca08e1f | 1687 | regcache->cooked_read (SPARC_O0_REGNUM, buf); |
8b39fe56 MK |
1688 | memcpy (valbuf, buf + 8 - len, len); |
1689 | } | |
1690 | } | |
1691 | ||
1692 | /* Write into the appropriate registers a function return value stored | |
1693 | in VALBUF of type TYPE. */ | |
1694 | ||
1695 | static void | |
1696 | sparc64_store_return_value (struct type *type, struct regcache *regcache, | |
e1613aba | 1697 | const gdb_byte *valbuf) |
8b39fe56 | 1698 | { |
df86565b | 1699 | int len = type->length (); |
e1613aba | 1700 | gdb_byte buf[16]; |
8b39fe56 MK |
1701 | int i; |
1702 | ||
1703 | if (sparc64_structure_or_union_p (type)) | |
1704 | { | |
1705 | /* Structure or Union return values. */ | |
1706 | gdb_assert (len <= 32); | |
1707 | ||
1708 | /* Simplify matters by storing the complete value (including | |
dda83cd7 SM |
1709 | floating members) into %o0 and %o1. Floating members are |
1710 | also store in the appropriate floating-point registers. */ | |
8b39fe56 MK |
1711 | memset (buf, 0, sizeof (buf)); |
1712 | memcpy (buf, valbuf, len); | |
1713 | for (i = 0; i < ((len + 7) / 8); i++) | |
b66f5587 | 1714 | regcache->cooked_write (SPARC_O0_REGNUM + i, buf + i * 8); |
78134374 | 1715 | if (type->code () != TYPE_CODE_UNION) |
8b39fe56 MK |
1716 | sparc64_store_floating_fields (regcache, type, buf, 0, 0); |
1717 | } | |
fe10a582 | 1718 | else if (sparc64_floating_p (type) || sparc64_complex_floating_p (type)) |
8b39fe56 MK |
1719 | { |
1720 | /* Floating return values. */ | |
1721 | memcpy (buf, valbuf, len); | |
1722 | for (i = 0; i < len / 4; i++) | |
b66f5587 | 1723 | regcache->cooked_write (SPARC_F0_REGNUM + i, buf + i * 4); |
8b39fe56 | 1724 | } |
78134374 | 1725 | else if (type->code () == TYPE_CODE_ARRAY) |
4bd87714 JB |
1726 | { |
1727 | /* Small arrays are returned the same way as small structures. */ | |
1728 | gdb_assert (len <= 32); | |
1729 | ||
1730 | memset (buf, 0, sizeof (buf)); | |
1731 | memcpy (buf, valbuf, len); | |
1732 | for (i = 0; i < ((len + 7) / 8); i++) | |
b66f5587 | 1733 | regcache->cooked_write (SPARC_O0_REGNUM + i, buf + i * 8); |
4bd87714 | 1734 | } |
8b39fe56 MK |
1735 | else |
1736 | { | |
1737 | /* Integral and pointer return values. */ | |
1738 | gdb_assert (sparc64_integral_or_pointer_p (type)); | |
1739 | ||
1740 | /* ??? Do we need to do any sign-extension here? */ | |
1741 | memset (buf, 0, 8); | |
1742 | memcpy (buf + 8 - len, valbuf, len); | |
b66f5587 | 1743 | regcache->cooked_write (SPARC_O0_REGNUM, buf); |
8b39fe56 MK |
1744 | } |
1745 | } | |
1746 | ||
60af1db2 | 1747 | static enum return_value_convention |
6a3a010b | 1748 | sparc64_return_value (struct gdbarch *gdbarch, struct value *function, |
c055b101 CV |
1749 | struct type *type, struct regcache *regcache, |
1750 | gdb_byte *readbuf, const gdb_byte *writebuf) | |
8b39fe56 | 1751 | { |
df86565b | 1752 | if (type->length () > 32) |
60af1db2 MK |
1753 | return RETURN_VALUE_STRUCT_CONVENTION; |
1754 | ||
1755 | if (readbuf) | |
1756 | sparc64_extract_return_value (type, regcache, readbuf); | |
1757 | if (writebuf) | |
1758 | sparc64_store_return_value (type, regcache, writebuf); | |
1759 | ||
1760 | return RETURN_VALUE_REGISTER_CONVENTION; | |
8b39fe56 | 1761 | } |
8b39fe56 | 1762 | \f |
8b39fe56 | 1763 | |
02a71ae8 MK |
1764 | static void |
1765 | sparc64_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum, | |
aff37fc1 | 1766 | struct dwarf2_frame_state_reg *reg, |
bd2b40ac | 1767 | frame_info_ptr this_frame) |
02a71ae8 MK |
1768 | { |
1769 | switch (regnum) | |
1770 | { | |
1771 | case SPARC_G0_REGNUM: | |
1772 | /* Since %g0 is always zero, there is no point in saving it, and | |
1773 | people will be inclined omit it from the CFI. Make sure we | |
1774 | don't warn about that. */ | |
1775 | reg->how = DWARF2_FRAME_REG_SAME_VALUE; | |
1776 | break; | |
1777 | case SPARC_SP_REGNUM: | |
1778 | reg->how = DWARF2_FRAME_REG_CFA; | |
1779 | break; | |
1780 | case SPARC64_PC_REGNUM: | |
1781 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1782 | reg->loc.offset = 8; | |
1783 | break; | |
1784 | case SPARC64_NPC_REGNUM: | |
1785 | reg->how = DWARF2_FRAME_REG_RA_OFFSET; | |
1786 | reg->loc.offset = 12; | |
1787 | break; | |
1788 | } | |
1789 | } | |
1790 | ||
58afddc6 WP |
1791 | /* sparc64_addr_bits_remove - remove useless address bits */ |
1792 | ||
1793 | static CORE_ADDR | |
1794 | sparc64_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr) | |
1795 | { | |
1796 | return adi_normalize_address (addr); | |
1797 | } | |
1798 | ||
8b39fe56 | 1799 | void |
386c036b | 1800 | sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) |
8b39fe56 | 1801 | { |
08106042 | 1802 | sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch); |
8b39fe56 | 1803 | |
386c036b MK |
1804 | tdep->pc_regnum = SPARC64_PC_REGNUM; |
1805 | tdep->npc_regnum = SPARC64_NPC_REGNUM; | |
3f7b46f2 IR |
1806 | tdep->fpu_register_names = sparc64_fpu_register_names; |
1807 | tdep->fpu_registers_num = ARRAY_SIZE (sparc64_fpu_register_names); | |
1808 | tdep->cp0_register_names = sparc64_cp0_register_names; | |
1809 | tdep->cp0_registers_num = ARRAY_SIZE (sparc64_cp0_register_names); | |
8b39fe56 | 1810 | |
386c036b | 1811 | /* This is what all the fuss is about. */ |
8b39fe56 MK |
1812 | set_gdbarch_long_bit (gdbarch, 64); |
1813 | set_gdbarch_long_long_bit (gdbarch, 64); | |
1814 | set_gdbarch_ptr_bit (gdbarch, 64); | |
8b39fe56 | 1815 | |
53375380 PA |
1816 | set_gdbarch_wchar_bit (gdbarch, 16); |
1817 | set_gdbarch_wchar_signed (gdbarch, 0); | |
1818 | ||
8b39fe56 MK |
1819 | set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS); |
1820 | set_gdbarch_register_name (gdbarch, sparc64_register_name); | |
1821 | set_gdbarch_register_type (gdbarch, sparc64_register_type); | |
1822 | set_gdbarch_num_pseudo_regs (gdbarch, SPARC64_NUM_PSEUDO_REGS); | |
3f7b46f2 IR |
1823 | set_tdesc_pseudo_register_name (gdbarch, sparc64_pseudo_register_name); |
1824 | set_tdesc_pseudo_register_type (gdbarch, sparc64_pseudo_register_type); | |
8b39fe56 MK |
1825 | set_gdbarch_pseudo_register_read (gdbarch, sparc64_pseudo_register_read); |
1826 | set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write); | |
1827 | ||
1828 | /* Register numbers of various important registers. */ | |
8b39fe56 | 1829 | set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */ |
8b39fe56 MK |
1830 | |
1831 | /* Call dummy code. */ | |
49a45ecf | 1832 | set_gdbarch_frame_align (gdbarch, sparc64_frame_align); |
386c036b MK |
1833 | set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT); |
1834 | set_gdbarch_push_dummy_code (gdbarch, NULL); | |
8b39fe56 MK |
1835 | set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call); |
1836 | ||
60af1db2 | 1837 | set_gdbarch_return_value (gdbarch, sparc64_return_value); |
386c036b MK |
1838 | set_gdbarch_stabs_argument_has_addr |
1839 | (gdbarch, default_stabs_argument_has_addr); | |
8b39fe56 MK |
1840 | |
1841 | set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue); | |
c9cf6e20 | 1842 | set_gdbarch_stack_frame_destroyed_p (gdbarch, sparc_stack_frame_destroyed_p); |
8b39fe56 | 1843 | |
02a71ae8 MK |
1844 | /* Hook in the DWARF CFI frame unwinder. */ |
1845 | dwarf2_frame_set_init_reg (gdbarch, sparc64_dwarf2_frame_init_reg); | |
1846 | /* FIXME: kettenis/20050423: Don't enable the unwinder until the | |
1847 | StackGhost issues have been resolved. */ | |
1848 | ||
236369e7 | 1849 | frame_unwind_append_unwinder (gdbarch, &sparc64_frame_unwind); |
8b39fe56 | 1850 | frame_base_set_default (gdbarch, &sparc64_frame_base); |
58afddc6 WP |
1851 | |
1852 | set_gdbarch_addr_bits_remove (gdbarch, sparc64_addr_bits_remove); | |
386c036b MK |
1853 | } |
1854 | \f | |
8b39fe56 | 1855 | |
386c036b | 1856 | /* Helper functions for dealing with register sets. */ |
8b39fe56 | 1857 | |
386c036b MK |
1858 | #define TSTATE_CWP 0x000000000000001fULL |
1859 | #define TSTATE_ICC 0x0000000f00000000ULL | |
1860 | #define TSTATE_XCC 0x000000f000000000ULL | |
8b39fe56 | 1861 | |
386c036b | 1862 | #define PSR_S 0x00000080 |
39b06c20 | 1863 | #ifndef PSR_ICC |
386c036b | 1864 | #define PSR_ICC 0x00f00000 |
39b06c20 | 1865 | #endif |
386c036b | 1866 | #define PSR_VERS 0x0f000000 |
39b06c20 | 1867 | #ifndef PSR_IMPL |
386c036b | 1868 | #define PSR_IMPL 0xf0000000 |
39b06c20 | 1869 | #endif |
386c036b MK |
1870 | #define PSR_V8PLUS 0xff000000 |
1871 | #define PSR_XCC 0x000f0000 | |
8b39fe56 | 1872 | |
3567a8ea | 1873 | void |
b4fd25c9 | 1874 | sparc64_supply_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1875 | struct regcache *regcache, |
1876 | int regnum, const void *gregs) | |
8b39fe56 | 1877 | { |
ac7936df | 1878 | struct gdbarch *gdbarch = regcache->arch (); |
e17a4113 UW |
1879 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
1880 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1881 | const gdb_byte *regs = (const gdb_byte *) gregs; |
22e74ef9 | 1882 | gdb_byte zero[8] = { 0 }; |
8b39fe56 MK |
1883 | int i; |
1884 | ||
386c036b | 1885 | if (sparc32) |
8b39fe56 | 1886 | { |
386c036b MK |
1887 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
1888 | { | |
b4fd25c9 | 1889 | int offset = gregmap->r_tstate_offset; |
386c036b | 1890 | ULONGEST tstate, psr; |
e1613aba | 1891 | gdb_byte buf[4]; |
386c036b | 1892 | |
e17a4113 | 1893 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
386c036b MK |
1894 | psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12) |
1895 | | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS); | |
e17a4113 | 1896 | store_unsigned_integer (buf, 4, byte_order, psr); |
73e1c03f | 1897 | regcache->raw_supply (SPARC32_PSR_REGNUM, buf); |
386c036b MK |
1898 | } |
1899 | ||
1900 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) | |
73e1c03f SM |
1901 | regcache->raw_supply (SPARC32_PC_REGNUM, |
1902 | regs + gregmap->r_pc_offset + 4); | |
386c036b MK |
1903 | |
1904 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
73e1c03f SM |
1905 | regcache->raw_supply (SPARC32_NPC_REGNUM, |
1906 | regs + gregmap->r_npc_offset + 4); | |
8b39fe56 | 1907 | |
386c036b | 1908 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) |
8b39fe56 | 1909 | { |
b4fd25c9 | 1910 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
73e1c03f | 1911 | regcache->raw_supply (SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
1912 | } |
1913 | } | |
1914 | else | |
1915 | { | |
386c036b | 1916 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
73e1c03f SM |
1917 | regcache->raw_supply (SPARC64_STATE_REGNUM, |
1918 | regs + gregmap->r_tstate_offset); | |
8b39fe56 | 1919 | |
386c036b | 1920 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) |
73e1c03f SM |
1921 | regcache->raw_supply (SPARC64_PC_REGNUM, |
1922 | regs + gregmap->r_pc_offset); | |
386c036b MK |
1923 | |
1924 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) | |
73e1c03f SM |
1925 | regcache->raw_supply (SPARC64_NPC_REGNUM, |
1926 | regs + gregmap->r_npc_offset); | |
386c036b MK |
1927 | |
1928 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) | |
3567a8ea | 1929 | { |
e1613aba | 1930 | gdb_byte buf[8]; |
386c036b MK |
1931 | |
1932 | memset (buf, 0, 8); | |
b4fd25c9 AA |
1933 | memcpy (buf + 8 - gregmap->r_y_size, |
1934 | regs + gregmap->r_y_offset, gregmap->r_y_size); | |
73e1c03f | 1935 | regcache->raw_supply (SPARC64_Y_REGNUM, buf); |
3567a8ea | 1936 | } |
8b39fe56 | 1937 | |
386c036b | 1938 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) |
b4fd25c9 | 1939 | && gregmap->r_fprs_offset != -1) |
73e1c03f SM |
1940 | regcache->raw_supply (SPARC64_FPRS_REGNUM, |
1941 | regs + gregmap->r_fprs_offset); | |
386c036b MK |
1942 | } |
1943 | ||
1944 | if (regnum == SPARC_G0_REGNUM || regnum == -1) | |
73e1c03f | 1945 | regcache->raw_supply (SPARC_G0_REGNUM, &zero); |
386c036b MK |
1946 | |
1947 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
1948 | { | |
b4fd25c9 | 1949 | int offset = gregmap->r_g1_offset; |
386c036b MK |
1950 | |
1951 | if (sparc32) | |
1952 | offset += 4; | |
1953 | ||
1954 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
8b39fe56 | 1955 | { |
3567a8ea | 1956 | if (regnum == i || regnum == -1) |
73e1c03f | 1957 | regcache->raw_supply (i, regs + offset); |
386c036b MK |
1958 | offset += 8; |
1959 | } | |
1960 | } | |
1961 | ||
1962 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
1963 | { | |
1964 | /* Not all of the register set variants include Locals and | |
dda83cd7 | 1965 | Inputs. For those that don't, we read them off the stack. */ |
b4fd25c9 | 1966 | if (gregmap->r_l0_offset == -1) |
386c036b MK |
1967 | { |
1968 | ULONGEST sp; | |
1969 | ||
1970 | regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp); | |
1971 | sparc_supply_rwindow (regcache, sp, regnum); | |
1972 | } | |
1973 | else | |
1974 | { | |
b4fd25c9 | 1975 | int offset = gregmap->r_l0_offset; |
386c036b MK |
1976 | |
1977 | if (sparc32) | |
1978 | offset += 4; | |
1979 | ||
1980 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 1981 | { |
386c036b | 1982 | if (regnum == i || regnum == -1) |
73e1c03f | 1983 | regcache->raw_supply (i, regs + offset); |
386c036b | 1984 | offset += 8; |
3567a8ea | 1985 | } |
8b39fe56 MK |
1986 | } |
1987 | } | |
1988 | } | |
1989 | ||
1990 | void | |
b4fd25c9 | 1991 | sparc64_collect_gregset (const struct sparc_gregmap *gregmap, |
386c036b MK |
1992 | const struct regcache *regcache, |
1993 | int regnum, void *gregs) | |
8b39fe56 | 1994 | { |
ac7936df | 1995 | struct gdbarch *gdbarch = regcache->arch (); |
e17a4113 UW |
1996 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
1997 | int sparc32 = (gdbarch_ptr_bit (gdbarch) == 32); | |
19ba03f4 | 1998 | gdb_byte *regs = (gdb_byte *) gregs; |
3567a8ea MK |
1999 | int i; |
2000 | ||
386c036b | 2001 | if (sparc32) |
8b39fe56 | 2002 | { |
386c036b MK |
2003 | if (regnum == SPARC32_PSR_REGNUM || regnum == -1) |
2004 | { | |
b4fd25c9 | 2005 | int offset = gregmap->r_tstate_offset; |
386c036b | 2006 | ULONGEST tstate, psr; |
e1613aba | 2007 | gdb_byte buf[8]; |
386c036b | 2008 | |
e17a4113 | 2009 | tstate = extract_unsigned_integer (regs + offset, 8, byte_order); |
34a79281 | 2010 | regcache->raw_collect (SPARC32_PSR_REGNUM, buf); |
e17a4113 | 2011 | psr = extract_unsigned_integer (buf, 4, byte_order); |
386c036b MK |
2012 | tstate |= (psr & PSR_ICC) << 12; |
2013 | if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS) | |
2014 | tstate |= (psr & PSR_XCC) << 20; | |
e17a4113 | 2015 | store_unsigned_integer (buf, 8, byte_order, tstate); |
386c036b MK |
2016 | memcpy (regs + offset, buf, 8); |
2017 | } | |
8b39fe56 | 2018 | |
386c036b | 2019 | if (regnum == SPARC32_PC_REGNUM || regnum == -1) |
34a79281 SM |
2020 | regcache->raw_collect (SPARC32_PC_REGNUM, |
2021 | regs + gregmap->r_pc_offset + 4); | |
386c036b MK |
2022 | |
2023 | if (regnum == SPARC32_NPC_REGNUM || regnum == -1) | |
34a79281 SM |
2024 | regcache->raw_collect (SPARC32_NPC_REGNUM, |
2025 | regs + gregmap->r_npc_offset + 4); | |
386c036b MK |
2026 | |
2027 | if (regnum == SPARC32_Y_REGNUM || regnum == -1) | |
8b39fe56 | 2028 | { |
b4fd25c9 | 2029 | int offset = gregmap->r_y_offset + 8 - gregmap->r_y_size; |
34a79281 | 2030 | regcache->raw_collect (SPARC32_Y_REGNUM, regs + offset); |
8b39fe56 MK |
2031 | } |
2032 | } | |
2033 | else | |
2034 | { | |
386c036b | 2035 | if (regnum == SPARC64_STATE_REGNUM || regnum == -1) |
34a79281 SM |
2036 | regcache->raw_collect (SPARC64_STATE_REGNUM, |
2037 | regs + gregmap->r_tstate_offset); | |
386c036b MK |
2038 | |
2039 | if (regnum == SPARC64_PC_REGNUM || regnum == -1) | |
34a79281 SM |
2040 | regcache->raw_collect (SPARC64_PC_REGNUM, |
2041 | regs + gregmap->r_pc_offset); | |
3567a8ea | 2042 | |
386c036b | 2043 | if (regnum == SPARC64_NPC_REGNUM || regnum == -1) |
34a79281 SM |
2044 | regcache->raw_collect (SPARC64_NPC_REGNUM, |
2045 | regs + gregmap->r_npc_offset); | |
3567a8ea | 2046 | |
386c036b | 2047 | if (regnum == SPARC64_Y_REGNUM || regnum == -1) |
3567a8ea | 2048 | { |
e1613aba | 2049 | gdb_byte buf[8]; |
386c036b | 2050 | |
34a79281 | 2051 | regcache->raw_collect (SPARC64_Y_REGNUM, buf); |
b4fd25c9 AA |
2052 | memcpy (regs + gregmap->r_y_offset, |
2053 | buf + 8 - gregmap->r_y_size, gregmap->r_y_size); | |
386c036b MK |
2054 | } |
2055 | ||
2056 | if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1) | |
b4fd25c9 | 2057 | && gregmap->r_fprs_offset != -1) |
34a79281 SM |
2058 | regcache->raw_collect (SPARC64_FPRS_REGNUM, |
2059 | regs + gregmap->r_fprs_offset); | |
386c036b MK |
2060 | |
2061 | } | |
2062 | ||
2063 | if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1) | |
2064 | { | |
b4fd25c9 | 2065 | int offset = gregmap->r_g1_offset; |
386c036b MK |
2066 | |
2067 | if (sparc32) | |
2068 | offset += 4; | |
2069 | ||
2070 | /* %g0 is always zero. */ | |
2071 | for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++) | |
2072 | { | |
2073 | if (regnum == i || regnum == -1) | |
34a79281 | 2074 | regcache->raw_collect (i, regs + offset); |
386c036b MK |
2075 | offset += 8; |
2076 | } | |
2077 | } | |
2078 | ||
2079 | if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1) | |
2080 | { | |
2081 | /* Not all of the register set variants include Locals and | |
dda83cd7 | 2082 | Inputs. For those that don't, we read them off the stack. */ |
b4fd25c9 | 2083 | if (gregmap->r_l0_offset != -1) |
386c036b | 2084 | { |
b4fd25c9 | 2085 | int offset = gregmap->r_l0_offset; |
386c036b MK |
2086 | |
2087 | if (sparc32) | |
2088 | offset += 4; | |
2089 | ||
2090 | for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++) | |
3567a8ea | 2091 | { |
386c036b | 2092 | if (regnum == i || regnum == -1) |
34a79281 | 2093 | regcache->raw_collect (i, regs + offset); |
386c036b | 2094 | offset += 8; |
3567a8ea MK |
2095 | } |
2096 | } | |
8b39fe56 MK |
2097 | } |
2098 | } | |
8b39fe56 | 2099 | |
386c036b | 2100 | void |
b4fd25c9 | 2101 | sparc64_supply_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2102 | struct regcache *regcache, |
386c036b MK |
2103 | int regnum, const void *fpregs) |
2104 | { | |
ac7936df | 2105 | int sparc32 = (gdbarch_ptr_bit (regcache->arch ()) == 32); |
19ba03f4 | 2106 | const gdb_byte *regs = (const gdb_byte *) fpregs; |
386c036b MK |
2107 | int i; |
2108 | ||
2109 | for (i = 0; i < 32; i++) | |
2110 | { | |
2111 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
73e1c03f | 2112 | regcache->raw_supply (SPARC_F0_REGNUM + i, |
34a79281 | 2113 | regs + fpregmap->r_f0_offset + (i * 4)); |
386c036b MK |
2114 | } |
2115 | ||
2116 | if (sparc32) | |
2117 | { | |
2118 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
73e1c03f | 2119 | regcache->raw_supply (SPARC32_FSR_REGNUM, |
b4fd25c9 | 2120 | regs + fpregmap->r_fsr_offset); |
386c036b MK |
2121 | } |
2122 | else | |
2123 | { | |
2124 | for (i = 0; i < 16; i++) | |
2125 | { | |
2126 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
73e1c03f SM |
2127 | regcache->raw_supply |
2128 | (SPARC64_F32_REGNUM + i, | |
2129 | regs + fpregmap->r_f0_offset + (32 * 4) + (i * 8)); | |
386c036b MK |
2130 | } |
2131 | ||
2132 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
73e1c03f SM |
2133 | regcache->raw_supply (SPARC64_FSR_REGNUM, |
2134 | regs + fpregmap->r_fsr_offset); | |
386c036b MK |
2135 | } |
2136 | } | |
8b39fe56 MK |
2137 | |
2138 | void | |
b4fd25c9 | 2139 | sparc64_collect_fpregset (const struct sparc_fpregmap *fpregmap, |
db75c717 | 2140 | const struct regcache *regcache, |
386c036b | 2141 | int regnum, void *fpregs) |
8b39fe56 | 2142 | { |
ac7936df | 2143 | int sparc32 = (gdbarch_ptr_bit (regcache->arch ()) == 32); |
19ba03f4 | 2144 | gdb_byte *regs = (gdb_byte *) fpregs; |
386c036b MK |
2145 | int i; |
2146 | ||
2147 | for (i = 0; i < 32; i++) | |
2148 | { | |
2149 | if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1) | |
34a79281 SM |
2150 | regcache->raw_collect (SPARC_F0_REGNUM + i, |
2151 | regs + fpregmap->r_f0_offset + (i * 4)); | |
386c036b MK |
2152 | } |
2153 | ||
2154 | if (sparc32) | |
2155 | { | |
2156 | if (regnum == SPARC32_FSR_REGNUM || regnum == -1) | |
34a79281 SM |
2157 | regcache->raw_collect (SPARC32_FSR_REGNUM, |
2158 | regs + fpregmap->r_fsr_offset); | |
386c036b MK |
2159 | } |
2160 | else | |
2161 | { | |
2162 | for (i = 0; i < 16; i++) | |
2163 | { | |
2164 | if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1) | |
34a79281 SM |
2165 | regcache->raw_collect (SPARC64_F32_REGNUM + i, |
2166 | (regs + fpregmap->r_f0_offset | |
2167 | + (32 * 4) + (i * 8))); | |
386c036b MK |
2168 | } |
2169 | ||
2170 | if (regnum == SPARC64_FSR_REGNUM || regnum == -1) | |
34a79281 SM |
2171 | regcache->raw_collect (SPARC64_FSR_REGNUM, |
2172 | regs + fpregmap->r_fsr_offset); | |
386c036b | 2173 | } |
8b39fe56 | 2174 | } |
fd936806 | 2175 | |
b4fd25c9 | 2176 | const struct sparc_fpregmap sparc64_bsd_fpregmap = |
db75c717 DM |
2177 | { |
2178 | 0 * 8, /* %f0 */ | |
2179 | 32 * 8, /* %fsr */ | |
2180 | }; |