Commit | Line | Data |
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b4b4b794 KI |
1 | /* Remote debugging interface for M32R/SDI. |
2 | ||
32d0add0 | 3 | Copyright (C) 2003-2015 Free Software Foundation, Inc. |
b4b4b794 KI |
4 | |
5 | Contributed by Renesas Technology Co. | |
6 | Written by Kei Sakamoto <sakamoto.kei@renesas.com>. | |
7 | ||
8 | This file is part of GDB. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
b4b4b794 KI |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b4b4b794 KI |
22 | |
23 | #include "defs.h" | |
24 | #include "gdbcmd.h" | |
25 | #include "gdbcore.h" | |
26 | #include "inferior.h" | |
45741a9c | 27 | #include "infrun.h" |
b4b4b794 KI |
28 | #include "target.h" |
29 | #include "regcache.h" | |
e5ef4d75 | 30 | #include "gdbthread.h" |
b4b4b794 KI |
31 | #include <ctype.h> |
32 | #include <signal.h> | |
cbba9205 | 33 | #ifdef __MINGW32__ |
b467f580 | 34 | #include <winsock2.h> |
cbba9205 | 35 | #else |
b4b4b794 | 36 | #include <netinet/in.h> |
cbba9205 | 37 | #endif |
b4b4b794 KI |
38 | #include <sys/types.h> |
39 | #include <sys/time.h> | |
b4b4b794 | 40 | #include <time.h> |
cbb099e8 | 41 | #include "gdb_bfd.h" |
529480d0 | 42 | #include "cli/cli-utils.h" |
bd2e0e9e | 43 | #include "symfile.h" |
b4b4b794 KI |
44 | #include "serial.h" |
45 | ||
46 | /* Descriptor for I/O to remote machine. */ | |
47 | ||
48 | static struct serial *sdi_desc = NULL; | |
49 | ||
50 | #define SDI_TIMEOUT 30 | |
51 | ||
52 | ||
53 | #define SDIPORT 3232 | |
54 | ||
55 | static char chip_name[64]; | |
56 | ||
57 | static int step_mode; | |
58 | static unsigned long last_pc_addr = 0xffffffff; | |
59 | static unsigned char last_pc_addr_data[2]; | |
60 | ||
61 | static int mmu_on = 0; | |
62 | ||
63 | static int use_ib_breakpoints = 1; | |
64 | ||
65 | #define MAX_BREAKPOINTS 1024 | |
66 | static int max_ib_breakpoints; | |
67 | static unsigned long bp_address[MAX_BREAKPOINTS]; | |
68 | static unsigned char bp_data[MAX_BREAKPOINTS][4]; | |
b4b4b794 KI |
69 | |
70 | /* dbt -> nop */ | |
71 | static const unsigned char dbt_bp_entry[] = { | |
72 | 0x10, 0xe0, 0x70, 0x00 | |
73 | }; | |
74 | ||
75 | #define MAX_ACCESS_BREAKS 4 | |
76 | static int max_access_breaks; | |
77 | static unsigned long ab_address[MAX_ACCESS_BREAKS]; | |
78 | static unsigned int ab_type[MAX_ACCESS_BREAKS]; | |
79 | static unsigned int ab_size[MAX_ACCESS_BREAKS]; | |
80 | static CORE_ADDR hit_watchpoint_addr = 0; | |
81 | ||
82 | static int interrupted = 0; | |
83 | ||
84 | /* Forward data declarations */ | |
85 | extern struct target_ops m32r_ops; | |
86 | ||
e5ef4d75 PA |
87 | /* This is the ptid we use while we're connected to the remote. Its |
88 | value is arbitrary, as the target doesn't have a notion of | |
89 | processes or threads, but we need something non-null to place in | |
90 | inferior_ptid. */ | |
91 | static ptid_t remote_m32r_ptid; | |
b4b4b794 KI |
92 | |
93 | /* Commands */ | |
94 | #define SDI_OPEN 1 | |
95 | #define SDI_CLOSE 2 | |
96 | #define SDI_RELEASE 3 | |
97 | #define SDI_READ_CPU_REG 4 | |
98 | #define SDI_WRITE_CPU_REG 5 | |
99 | #define SDI_READ_MEMORY 6 | |
100 | #define SDI_WRITE_MEMORY 7 | |
101 | #define SDI_EXEC_CPU 8 | |
102 | #define SDI_STOP_CPU 9 | |
103 | #define SDI_WAIT_FOR_READY 10 | |
104 | #define SDI_GET_ATTR 11 | |
105 | #define SDI_SET_ATTR 12 | |
106 | #define SDI_STATUS 13 | |
107 | ||
108 | /* Attributes */ | |
109 | #define SDI_ATTR_NAME 1 | |
110 | #define SDI_ATTR_BRK 2 | |
111 | #define SDI_ATTR_ABRK 3 | |
112 | #define SDI_ATTR_CACHE 4 | |
113 | #define SDI_CACHE_TYPE_M32102 0 | |
114 | #define SDI_CACHE_TYPE_CHAOS 1 | |
115 | #define SDI_ATTR_MEM_ACCESS 5 | |
116 | #define SDI_MEM_ACCESS_DEBUG_DMA 0 | |
117 | #define SDI_MEM_ACCESS_MON_CODE 1 | |
118 | ||
119 | /* Registers */ | |
120 | #define SDI_REG_R0 0 | |
121 | #define SDI_REG_R1 1 | |
122 | #define SDI_REG_R2 2 | |
123 | #define SDI_REG_R3 3 | |
124 | #define SDI_REG_R4 4 | |
125 | #define SDI_REG_R5 5 | |
126 | #define SDI_REG_R6 6 | |
127 | #define SDI_REG_R7 7 | |
128 | #define SDI_REG_R8 8 | |
129 | #define SDI_REG_R9 9 | |
130 | #define SDI_REG_R10 10 | |
131 | #define SDI_REG_R11 11 | |
132 | #define SDI_REG_R12 12 | |
133 | #define SDI_REG_FP 13 | |
134 | #define SDI_REG_LR 14 | |
135 | #define SDI_REG_SP 15 | |
136 | #define SDI_REG_PSW 16 | |
137 | #define SDI_REG_CBR 17 | |
138 | #define SDI_REG_SPI 18 | |
139 | #define SDI_REG_SPU 19 | |
140 | #define SDI_REG_CR4 20 | |
141 | #define SDI_REG_EVB 21 | |
142 | #define SDI_REG_BPC 22 | |
143 | #define SDI_REG_CR7 23 | |
144 | #define SDI_REG_BBPSW 24 | |
145 | #define SDI_REG_CR9 25 | |
146 | #define SDI_REG_CR10 26 | |
147 | #define SDI_REG_CR11 27 | |
148 | #define SDI_REG_CR12 28 | |
149 | #define SDI_REG_WR 29 | |
150 | #define SDI_REG_BBPC 30 | |
151 | #define SDI_REG_PBP 31 | |
152 | #define SDI_REG_ACCH 32 | |
153 | #define SDI_REG_ACCL 33 | |
154 | #define SDI_REG_ACC1H 34 | |
155 | #define SDI_REG_ACC1L 35 | |
156 | ||
157 | ||
0df8b418 | 158 | /* Low level communication functions. */ |
b4b4b794 | 159 | |
0df8b418 | 160 | /* Check an ack packet from the target. */ |
b4b4b794 KI |
161 | static int |
162 | get_ack (void) | |
163 | { | |
164 | int c; | |
165 | ||
717eb1cf | 166 | if (!sdi_desc) |
b4b4b794 KI |
167 | return -1; |
168 | ||
169 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
170 | ||
171 | if (c < 0) | |
172 | return -1; | |
173 | ||
717eb1cf | 174 | if (c != '+') /* error */ |
b4b4b794 KI |
175 | return -1; |
176 | ||
177 | return 0; | |
178 | } | |
179 | ||
0df8b418 | 180 | /* Send data to the target and check an ack packet. */ |
b4b4b794 | 181 | static int |
a1583b1f | 182 | send_data (const void *buf, int len) |
b4b4b794 | 183 | { |
717eb1cf | 184 | if (!sdi_desc) |
b4b4b794 KI |
185 | return -1; |
186 | ||
187 | if (serial_write (sdi_desc, buf, len) != 0) | |
188 | return -1; | |
189 | ||
190 | if (get_ack () == -1) | |
191 | return -1; | |
192 | ||
193 | return len; | |
194 | } | |
195 | ||
0df8b418 | 196 | /* Receive data from the target. */ |
b4b4b794 KI |
197 | static int |
198 | recv_data (void *buf, int len) | |
199 | { | |
200 | int total = 0; | |
201 | int c; | |
202 | ||
717eb1cf | 203 | if (!sdi_desc) |
b4b4b794 KI |
204 | return -1; |
205 | ||
206 | while (total < len) | |
207 | { | |
208 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
209 | ||
210 | if (c < 0) | |
211 | return -1; | |
212 | ||
213 | ((unsigned char *) buf)[total++] = c; | |
214 | } | |
215 | ||
216 | return len; | |
217 | } | |
218 | ||
0df8b418 | 219 | /* Store unsigned long parameter on packet. */ |
b4b4b794 KI |
220 | static void |
221 | store_long_parameter (void *buf, long val) | |
222 | { | |
223 | val = htonl (val); | |
224 | memcpy (buf, &val, 4); | |
225 | } | |
226 | ||
e22f895c KI |
227 | static int |
228 | send_cmd (unsigned char cmd) | |
229 | { | |
230 | unsigned char buf[1]; | |
123f5f96 | 231 | |
e22f895c KI |
232 | buf[0] = cmd; |
233 | return send_data (buf, 1); | |
234 | } | |
235 | ||
236 | static int | |
237 | send_one_arg_cmd (unsigned char cmd, unsigned char arg1) | |
238 | { | |
239 | unsigned char buf[2]; | |
123f5f96 | 240 | |
e22f895c KI |
241 | buf[0] = cmd; |
242 | buf[1] = arg1; | |
243 | return send_data (buf, 2); | |
244 | } | |
245 | ||
246 | static int | |
247 | send_two_arg_cmd (unsigned char cmd, unsigned char arg1, unsigned long arg2) | |
248 | { | |
249 | unsigned char buf[6]; | |
123f5f96 | 250 | |
e22f895c KI |
251 | buf[0] = cmd; |
252 | buf[1] = arg1; | |
253 | store_long_parameter (buf + 2, arg2); | |
254 | return send_data (buf, 6); | |
255 | } | |
256 | ||
257 | static int | |
258 | send_three_arg_cmd (unsigned char cmd, unsigned long arg1, unsigned long arg2, | |
259 | unsigned long arg3) | |
260 | { | |
261 | unsigned char buf[13]; | |
123f5f96 | 262 | |
e22f895c KI |
263 | buf[0] = cmd; |
264 | store_long_parameter (buf + 1, arg1); | |
265 | store_long_parameter (buf + 5, arg2); | |
266 | store_long_parameter (buf + 9, arg3); | |
267 | return send_data (buf, 13); | |
268 | } | |
269 | ||
270 | static unsigned char | |
271 | recv_char_data (void) | |
272 | { | |
273 | unsigned char val; | |
123f5f96 | 274 | |
e22f895c KI |
275 | recv_data (&val, 1); |
276 | return val; | |
277 | } | |
278 | ||
279 | static unsigned long | |
280 | recv_long_data (void) | |
281 | { | |
282 | unsigned long val; | |
123f5f96 | 283 | |
e22f895c KI |
284 | recv_data (&val, 4); |
285 | return ntohl (val); | |
286 | } | |
287 | ||
288 | ||
0df8b418 | 289 | /* Check if MMU is on. */ |
b4b4b794 KI |
290 | static void |
291 | check_mmu_status (void) | |
292 | { | |
293 | unsigned long val; | |
b4b4b794 | 294 | |
0df8b418 | 295 | /* Read PC address. */ |
e22f895c | 296 | if (send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BPC) == -1) |
b4b4b794 | 297 | return; |
e22f895c | 298 | val = recv_long_data (); |
b4b4b794 KI |
299 | if ((val & 0xc0000000) == 0x80000000) |
300 | { | |
301 | mmu_on = 1; | |
302 | return; | |
303 | } | |
304 | ||
0df8b418 | 305 | /* Read EVB address. */ |
e22f895c | 306 | if (send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_EVB) == -1) |
b4b4b794 | 307 | return; |
e22f895c | 308 | val = recv_long_data (); |
b4b4b794 KI |
309 | if ((val & 0xc0000000) == 0x80000000) |
310 | { | |
311 | mmu_on = 1; | |
312 | return; | |
313 | } | |
314 | ||
315 | mmu_on = 0; | |
316 | } | |
317 | ||
318 | ||
319 | /* This is called not only when we first attach, but also when the | |
320 | user types "run" after having attached. */ | |
321 | static void | |
136d6dae VP |
322 | m32r_create_inferior (struct target_ops *ops, char *execfile, |
323 | char *args, char **env, int from_tty) | |
b4b4b794 KI |
324 | { |
325 | CORE_ADDR entry_pt; | |
326 | ||
327 | if (args && *args) | |
8a3fe4f8 | 328 | error (_("Cannot pass arguments to remote STDEBUG process")); |
b4b4b794 KI |
329 | |
330 | if (execfile == 0 || exec_bfd == 0) | |
8a3fe4f8 | 331 | error (_("No executable file specified")); |
b4b4b794 KI |
332 | |
333 | if (remote_debug) | |
334 | fprintf_unfiltered (gdb_stdlog, "m32r_create_inferior(%s,%s)\n", execfile, | |
335 | args); | |
336 | ||
337 | entry_pt = bfd_get_start_address (exec_bfd); | |
338 | ||
339 | /* The "process" (board) is already stopped awaiting our commands, and | |
340 | the program is already downloaded. We just set its PC and go. */ | |
341 | ||
88056fbb | 342 | clear_proceed_status (0); |
b4b4b794 KI |
343 | |
344 | /* Tell wait_for_inferior that we've started a new process. */ | |
345 | init_wait_for_inferior (); | |
346 | ||
347 | /* Set up the "saved terminal modes" of the inferior | |
348 | based on what modes we are starting it with. */ | |
349 | target_terminal_init (); | |
350 | ||
351 | /* Install inferior's terminal modes. */ | |
352 | target_terminal_inferior (); | |
353 | ||
fb14de7b | 354 | regcache_write_pc (get_current_regcache (), entry_pt); |
b4b4b794 KI |
355 | } |
356 | ||
357 | /* Open a connection to a remote debugger. | |
358 | NAME is the filename used for communication. */ | |
359 | ||
360 | static void | |
014f9477 | 361 | m32r_open (const char *args, int from_tty) |
b4b4b794 KI |
362 | { |
363 | struct hostent *host_ent; | |
364 | struct sockaddr_in server_addr; | |
365 | char *port_str, hostname[256]; | |
366 | int port; | |
b4b4b794 KI |
367 | int i, n; |
368 | int yes = 1; | |
369 | ||
370 | if (remote_debug) | |
371 | fprintf_unfiltered (gdb_stdlog, "m32r_open(%d)\n", from_tty); | |
372 | ||
373 | target_preopen (from_tty); | |
374 | ||
375 | push_target (&m32r_ops); | |
376 | ||
377 | if (args == NULL) | |
8c042590 | 378 | xsnprintf (hostname, sizeof (hostname), "localhost:%d", SDIPORT); |
b4b4b794 KI |
379 | else |
380 | { | |
381 | port_str = strchr (args, ':'); | |
382 | if (port_str == NULL) | |
8c042590 | 383 | xsnprintf (hostname, sizeof (hostname), "%s:%d", args, SDIPORT); |
b4b4b794 | 384 | else |
8c042590 | 385 | xsnprintf (hostname, sizeof (hostname), "%s", args); |
b4b4b794 KI |
386 | } |
387 | ||
388 | sdi_desc = serial_open (hostname); | |
389 | if (!sdi_desc) | |
8a3fe4f8 | 390 | error (_("Connection refused.")); |
b4b4b794 KI |
391 | |
392 | if (get_ack () == -1) | |
8a3fe4f8 | 393 | error (_("Cannot connect to SDI target.")); |
b4b4b794 | 394 | |
e22f895c | 395 | if (send_cmd (SDI_OPEN) == -1) |
8a3fe4f8 | 396 | error (_("Cannot connect to SDI target.")); |
b4b4b794 | 397 | |
0df8b418 | 398 | /* Get maximum number of ib breakpoints. */ |
e22f895c KI |
399 | send_one_arg_cmd (SDI_GET_ATTR, SDI_ATTR_BRK); |
400 | max_ib_breakpoints = recv_char_data (); | |
b4b4b794 KI |
401 | if (remote_debug) |
402 | printf_filtered ("Max IB Breakpoints = %d\n", max_ib_breakpoints); | |
403 | ||
0df8b418 | 404 | /* Initialize breakpoints. */ |
b4b4b794 KI |
405 | for (i = 0; i < MAX_BREAKPOINTS; i++) |
406 | bp_address[i] = 0xffffffff; | |
407 | ||
0df8b418 | 408 | /* Get maximum number of access breaks. */ |
e22f895c KI |
409 | send_one_arg_cmd (SDI_GET_ATTR, SDI_ATTR_ABRK); |
410 | max_access_breaks = recv_char_data (); | |
b4b4b794 KI |
411 | if (remote_debug) |
412 | printf_filtered ("Max Access Breaks = %d\n", max_access_breaks); | |
413 | ||
0df8b418 | 414 | /* Initialize access breask. */ |
b4b4b794 KI |
415 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) |
416 | ab_address[i] = 0x00000000; | |
417 | ||
418 | check_mmu_status (); | |
419 | ||
0df8b418 | 420 | /* Get the name of chip on target board. */ |
e22f895c | 421 | send_one_arg_cmd (SDI_GET_ATTR, SDI_ATTR_NAME); |
b4b4b794 KI |
422 | recv_data (chip_name, 64); |
423 | ||
424 | if (from_tty) | |
425 | printf_filtered ("Remote %s connected to %s\n", target_shortname, | |
426 | chip_name); | |
427 | } | |
428 | ||
0df8b418 | 429 | /* Close out all files and local state before this target loses control. */ |
b4b4b794 KI |
430 | |
431 | static void | |
de90e03d | 432 | m32r_close (struct target_ops *self) |
b4b4b794 | 433 | { |
b4b4b794 | 434 | if (remote_debug) |
460014f5 | 435 | fprintf_unfiltered (gdb_stdlog, "m32r_close()\n"); |
b4b4b794 KI |
436 | |
437 | if (sdi_desc) | |
438 | { | |
e22f895c | 439 | send_cmd (SDI_CLOSE); |
b4b4b794 KI |
440 | serial_close (sdi_desc); |
441 | sdi_desc = NULL; | |
442 | } | |
443 | ||
444 | inferior_ptid = null_ptid; | |
e5ef4d75 | 445 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
446 | return; |
447 | } | |
448 | ||
449 | /* Tell the remote machine to resume. */ | |
450 | ||
451 | static void | |
28439f5e | 452 | m32r_resume (struct target_ops *ops, |
2ea28649 | 453 | ptid_t ptid, int step, enum gdb_signal sig) |
b4b4b794 KI |
454 | { |
455 | unsigned long pc_addr, bp_addr, ab_addr; | |
e22f895c | 456 | int ib_breakpoints; |
b4b4b794 KI |
457 | unsigned char buf[13]; |
458 | int i; | |
459 | ||
460 | if (remote_debug) | |
461 | { | |
462 | if (step) | |
463 | fprintf_unfiltered (gdb_stdlog, "\nm32r_resume(step)\n"); | |
464 | else | |
465 | fprintf_unfiltered (gdb_stdlog, "\nm32r_resume(cont)\n"); | |
466 | } | |
467 | ||
468 | check_mmu_status (); | |
469 | ||
fb14de7b | 470 | pc_addr = regcache_read_pc (get_current_regcache ()); |
b4b4b794 KI |
471 | if (remote_debug) |
472 | fprintf_unfiltered (gdb_stdlog, "pc <= 0x%lx\n", pc_addr); | |
473 | ||
474 | /* At pc address there is a parallel instruction with +2 offset, | |
0df8b418 | 475 | so we have to make it a serial instruction or avoid it. */ |
b4b4b794 KI |
476 | if (pc_addr == last_pc_addr) |
477 | { | |
0df8b418 | 478 | /* Avoid a parallel nop. */ |
b4b4b794 KI |
479 | if (last_pc_addr_data[0] == 0xf0 && last_pc_addr_data[1] == 0x00) |
480 | { | |
481 | pc_addr += 2; | |
0df8b418 | 482 | /* Now we can forget this instruction. */ |
b4b4b794 KI |
483 | last_pc_addr = 0xffffffff; |
484 | } | |
0df8b418 | 485 | /* Clear a parallel bit. */ |
b4b4b794 KI |
486 | else |
487 | { | |
488 | buf[0] = SDI_WRITE_MEMORY; | |
f5656ead | 489 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 KI |
490 | store_long_parameter (buf + 1, pc_addr); |
491 | else | |
492 | store_long_parameter (buf + 1, pc_addr - 1); | |
493 | store_long_parameter (buf + 5, 1); | |
494 | buf[9] = last_pc_addr_data[0] & 0x7f; | |
495 | send_data (buf, 10); | |
496 | } | |
497 | } | |
498 | ||
0df8b418 | 499 | /* Set PC. */ |
e22f895c | 500 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_BPC, pc_addr); |
b4b4b794 | 501 | |
0df8b418 | 502 | /* step mode. */ |
b4b4b794 KI |
503 | step_mode = step; |
504 | if (step) | |
505 | { | |
0df8b418 | 506 | /* Set PBP. */ |
e22f895c | 507 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_PBP, pc_addr | 1); |
b4b4b794 KI |
508 | } |
509 | else | |
510 | { | |
0df8b418 | 511 | /* Unset PBP. */ |
e22f895c KI |
512 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_PBP, 0x00000000); |
513 | } | |
514 | ||
515 | if (use_ib_breakpoints) | |
516 | ib_breakpoints = max_ib_breakpoints; | |
517 | else | |
518 | ib_breakpoints = 0; | |
519 | ||
0df8b418 | 520 | /* Set ib breakpoints. */ |
e22f895c KI |
521 | for (i = 0; i < ib_breakpoints; i++) |
522 | { | |
523 | bp_addr = bp_address[i]; | |
b4b4b794 | 524 | |
e22f895c KI |
525 | if (bp_addr == 0xffffffff) |
526 | continue; | |
527 | ||
0df8b418 | 528 | /* Set PBP. */ |
f5656ead | 529 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
e22f895c KI |
530 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8000 + 4 * i, 4, |
531 | 0x00000006); | |
b4b4b794 | 532 | else |
e22f895c KI |
533 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8000 + 4 * i, 4, |
534 | 0x06000000); | |
535 | ||
536 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8080 + 4 * i, 4, bp_addr); | |
537 | } | |
538 | ||
0df8b418 | 539 | /* Set dbt breakpoints. */ |
e22f895c KI |
540 | for (i = ib_breakpoints; i < MAX_BREAKPOINTS; i++) |
541 | { | |
542 | bp_addr = bp_address[i]; | |
543 | ||
544 | if (bp_addr == 0xffffffff) | |
545 | continue; | |
546 | ||
547 | if (!mmu_on) | |
548 | bp_addr &= 0x7fffffff; | |
b4b4b794 | 549 | |
0df8b418 | 550 | /* Write DBT instruction. */ |
e22f895c | 551 | buf[0] = SDI_WRITE_MEMORY; |
492e5c6b | 552 | store_long_parameter (buf + 1, (bp_addr & 0xfffffffc)); |
e22f895c KI |
553 | store_long_parameter (buf + 5, 4); |
554 | if ((bp_addr & 2) == 0 && bp_addr != (pc_addr & 0xfffffffc)) | |
b4b4b794 | 555 | { |
f5656ead | 556 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 557 | { |
e22f895c KI |
558 | buf[9] = dbt_bp_entry[0]; |
559 | buf[10] = dbt_bp_entry[1]; | |
560 | buf[11] = dbt_bp_entry[2]; | |
561 | buf[12] = dbt_bp_entry[3]; | |
562 | } | |
563 | else | |
564 | { | |
565 | buf[9] = dbt_bp_entry[3]; | |
566 | buf[10] = dbt_bp_entry[2]; | |
567 | buf[11] = dbt_bp_entry[1]; | |
568 | buf[12] = dbt_bp_entry[0]; | |
b4b4b794 KI |
569 | } |
570 | } | |
e22f895c | 571 | else |
b4b4b794 | 572 | { |
f5656ead | 573 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 574 | { |
e22f895c | 575 | if ((bp_addr & 2) == 0) |
b4b4b794 | 576 | { |
e22f895c KI |
577 | buf[9] = dbt_bp_entry[0]; |
578 | buf[10] = dbt_bp_entry[1]; | |
579 | buf[11] = bp_data[i][2] & 0x7f; | |
580 | buf[12] = bp_data[i][3]; | |
b4b4b794 KI |
581 | } |
582 | else | |
583 | { | |
e22f895c KI |
584 | buf[9] = bp_data[i][0]; |
585 | buf[10] = bp_data[i][1]; | |
586 | buf[11] = dbt_bp_entry[0]; | |
587 | buf[12] = dbt_bp_entry[1]; | |
b4b4b794 KI |
588 | } |
589 | } | |
e22f895c | 590 | else |
b4b4b794 | 591 | { |
e22f895c | 592 | if ((bp_addr & 2) == 0) |
b4b4b794 | 593 | { |
e22f895c KI |
594 | buf[9] = bp_data[i][0]; |
595 | buf[10] = bp_data[i][1] & 0x7f; | |
596 | buf[11] = dbt_bp_entry[1]; | |
597 | buf[12] = dbt_bp_entry[0]; | |
b4b4b794 KI |
598 | } |
599 | else | |
600 | { | |
e22f895c KI |
601 | buf[9] = dbt_bp_entry[1]; |
602 | buf[10] = dbt_bp_entry[0]; | |
603 | buf[11] = bp_data[i][2]; | |
604 | buf[12] = bp_data[i][3]; | |
b4b4b794 | 605 | } |
e22f895c KI |
606 | } |
607 | } | |
608 | send_data (buf, 13); | |
609 | } | |
b4b4b794 | 610 | |
0df8b418 | 611 | /* Set access breaks. */ |
e22f895c KI |
612 | for (i = 0; i < max_access_breaks; i++) |
613 | { | |
614 | ab_addr = ab_address[i]; | |
b4b4b794 | 615 | |
e22f895c KI |
616 | if (ab_addr == 0x00000000) |
617 | continue; | |
b4b4b794 | 618 | |
0df8b418 | 619 | /* DBC register. */ |
f5656ead | 620 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
e22f895c KI |
621 | { |
622 | switch (ab_type[i]) | |
623 | { | |
624 | case 0: /* write watch */ | |
625 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
626 | 0x00000086); | |
627 | break; | |
628 | case 1: /* read watch */ | |
629 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
630 | 0x00000046); | |
631 | break; | |
632 | case 2: /* access watch */ | |
633 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
634 | 0x00000006); | |
635 | break; | |
636 | } | |
637 | } | |
638 | else | |
639 | { | |
640 | switch (ab_type[i]) | |
641 | { | |
642 | case 0: /* write watch */ | |
643 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
644 | 0x86000000); | |
645 | break; | |
646 | case 1: /* read watch */ | |
647 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
648 | 0x46000000); | |
649 | break; | |
650 | case 2: /* access watch */ | |
651 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, | |
652 | 0x06000000); | |
653 | break; | |
b4b4b794 KI |
654 | } |
655 | } | |
656 | ||
0df8b418 | 657 | /* DBAH register. */ |
e22f895c KI |
658 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8180 + 4 * i, 4, ab_addr); |
659 | ||
0df8b418 | 660 | /* DBAL register. */ |
e22f895c KI |
661 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8200 + 4 * i, 4, |
662 | 0xffffffff); | |
663 | ||
0df8b418 | 664 | /* DBD register. */ |
e22f895c KI |
665 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8280 + 4 * i, 4, |
666 | 0x00000000); | |
667 | ||
0df8b418 | 668 | /* DBDM register. */ |
e22f895c KI |
669 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8300 + 4 * i, 4, |
670 | 0x00000000); | |
b4b4b794 KI |
671 | } |
672 | ||
0df8b418 | 673 | /* Resume program. */ |
e22f895c | 674 | send_cmd (SDI_EXEC_CPU); |
b4b4b794 KI |
675 | |
676 | /* Without this, some commands which require an active target (such as kill) | |
677 | won't work. This variable serves (at least) double duty as both the pid | |
678 | of the target process (if it has such), and as a flag indicating that a | |
679 | target is active. These functions should be split out into seperate | |
680 | variables, especially since GDB will someday have a notion of debugging | |
681 | several processes. */ | |
e5ef4d75 PA |
682 | inferior_ptid = remote_m32r_ptid; |
683 | add_thread_silent (remote_m32r_ptid); | |
b4b4b794 KI |
684 | |
685 | return; | |
686 | } | |
687 | ||
688 | /* Wait until the remote machine stops, then return, | |
689 | storing status in STATUS just as `wait' would. */ | |
690 | ||
691 | static void | |
692 | gdb_cntrl_c (int signo) | |
693 | { | |
694 | if (remote_debug) | |
695 | fprintf_unfiltered (gdb_stdlog, "interrupt\n"); | |
696 | interrupted = 1; | |
697 | } | |
698 | ||
699 | static ptid_t | |
117de6a9 | 700 | m32r_wait (struct target_ops *ops, |
61439e34 | 701 | ptid_t ptid, struct target_waitstatus *status, int options) |
b4b4b794 KI |
702 | { |
703 | static RETSIGTYPE (*prev_sigint) (); | |
704 | unsigned long bp_addr, pc_addr; | |
e22f895c | 705 | int ib_breakpoints; |
b4b4b794 KI |
706 | long i; |
707 | unsigned char buf[13]; | |
b4b4b794 KI |
708 | int ret, c; |
709 | ||
710 | if (remote_debug) | |
711 | fprintf_unfiltered (gdb_stdlog, "m32r_wait()\n"); | |
712 | ||
713 | status->kind = TARGET_WAITKIND_EXITED; | |
a493e3e2 | 714 | status->value.sig = GDB_SIGNAL_0; |
b4b4b794 KI |
715 | |
716 | interrupted = 0; | |
717 | prev_sigint = signal (SIGINT, gdb_cntrl_c); | |
718 | ||
0df8b418 | 719 | /* Wait for ready. */ |
b4b4b794 KI |
720 | buf[0] = SDI_WAIT_FOR_READY; |
721 | if (serial_write (sdi_desc, buf, 1) != 0) | |
8a3fe4f8 | 722 | error (_("Remote connection closed")); |
b4b4b794 KI |
723 | |
724 | while (1) | |
725 | { | |
726 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
727 | if (c < 0) | |
8a3fe4f8 | 728 | error (_("Remote connection closed")); |
b4b4b794 | 729 | |
717eb1cf | 730 | if (c == '-') /* error */ |
b4b4b794 KI |
731 | { |
732 | status->kind = TARGET_WAITKIND_STOPPED; | |
a493e3e2 | 733 | status->value.sig = GDB_SIGNAL_HUP; |
b4b4b794 KI |
734 | return inferior_ptid; |
735 | } | |
736 | else if (c == '+') /* stopped */ | |
737 | break; | |
738 | ||
739 | if (interrupted) | |
740 | ret = serial_write (sdi_desc, "!", 1); /* packet to interrupt */ | |
741 | else | |
742 | ret = serial_write (sdi_desc, ".", 1); /* packet to wait */ | |
743 | if (ret != 0) | |
8a3fe4f8 | 744 | error (_("Remote connection closed")); |
b4b4b794 KI |
745 | } |
746 | ||
747 | status->kind = TARGET_WAITKIND_STOPPED; | |
748 | if (interrupted) | |
a493e3e2 | 749 | status->value.sig = GDB_SIGNAL_INT; |
b4b4b794 | 750 | else |
a493e3e2 | 751 | status->value.sig = GDB_SIGNAL_TRAP; |
b4b4b794 KI |
752 | |
753 | interrupted = 0; | |
754 | signal (SIGINT, prev_sigint); | |
755 | ||
756 | check_mmu_status (); | |
757 | ||
0df8b418 | 758 | /* Recover parallel bit. */ |
b4b4b794 KI |
759 | if (last_pc_addr != 0xffffffff) |
760 | { | |
761 | buf[0] = SDI_WRITE_MEMORY; | |
f5656ead | 762 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 KI |
763 | store_long_parameter (buf + 1, last_pc_addr); |
764 | else | |
765 | store_long_parameter (buf + 1, last_pc_addr - 1); | |
766 | store_long_parameter (buf + 5, 1); | |
767 | buf[9] = last_pc_addr_data[0]; | |
768 | send_data (buf, 10); | |
769 | last_pc_addr = 0xffffffff; | |
770 | } | |
771 | ||
e22f895c KI |
772 | if (use_ib_breakpoints) |
773 | ib_breakpoints = max_ib_breakpoints; | |
774 | else | |
775 | ib_breakpoints = 0; | |
b4b4b794 | 776 | |
0df8b418 | 777 | /* Set back pc by 2 if m32r is stopped with dbt. */ |
e22f895c KI |
778 | last_pc_addr = 0xffffffff; |
779 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BPC); | |
780 | pc_addr = recv_long_data () - 2; | |
781 | for (i = ib_breakpoints; i < MAX_BREAKPOINTS; i++) | |
782 | { | |
783 | if (pc_addr == bp_address[i]) | |
b4b4b794 | 784 | { |
e22f895c KI |
785 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_BPC, pc_addr); |
786 | ||
787 | /* If there is a parallel instruction with +2 offset at pc | |
0df8b418 | 788 | address, we have to take care of it later. */ |
e22f895c | 789 | if ((pc_addr & 0x2) != 0) |
b4b4b794 | 790 | { |
f5656ead | 791 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 792 | { |
e22f895c | 793 | if ((bp_data[i][2] & 0x80) != 0) |
b4b4b794 | 794 | { |
e22f895c KI |
795 | last_pc_addr = pc_addr; |
796 | last_pc_addr_data[0] = bp_data[i][2]; | |
797 | last_pc_addr_data[1] = bp_data[i][3]; | |
b4b4b794 | 798 | } |
e22f895c KI |
799 | } |
800 | else | |
801 | { | |
802 | if ((bp_data[i][1] & 0x80) != 0) | |
b4b4b794 | 803 | { |
e22f895c KI |
804 | last_pc_addr = pc_addr; |
805 | last_pc_addr_data[0] = bp_data[i][1]; | |
806 | last_pc_addr_data[1] = bp_data[i][0]; | |
b4b4b794 KI |
807 | } |
808 | } | |
b4b4b794 | 809 | } |
e22f895c | 810 | break; |
b4b4b794 | 811 | } |
e22f895c | 812 | } |
b4b4b794 | 813 | |
0df8b418 | 814 | /* Remove ib breakpoints. */ |
e22f895c KI |
815 | for (i = 0; i < ib_breakpoints; i++) |
816 | { | |
817 | if (bp_address[i] != 0xffffffff) | |
818 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8000 + 4 * i, 4, | |
819 | 0x00000000); | |
820 | } | |
0df8b418 | 821 | /* Remove dbt breakpoints. */ |
e22f895c KI |
822 | for (i = ib_breakpoints; i < MAX_BREAKPOINTS; i++) |
823 | { | |
824 | bp_addr = bp_address[i]; | |
825 | if (bp_addr != 0xffffffff) | |
b4b4b794 | 826 | { |
e22f895c KI |
827 | if (!mmu_on) |
828 | bp_addr &= 0x7fffffff; | |
492e5c6b | 829 | buf[0] = SDI_WRITE_MEMORY; |
e22f895c KI |
830 | store_long_parameter (buf + 1, bp_addr & 0xfffffffc); |
831 | store_long_parameter (buf + 5, 4); | |
832 | buf[9] = bp_data[i][0]; | |
833 | buf[10] = bp_data[i][1]; | |
834 | buf[11] = bp_data[i][2]; | |
835 | buf[12] = bp_data[i][3]; | |
836 | send_data (buf, 13); | |
b4b4b794 | 837 | } |
e22f895c | 838 | } |
b4b4b794 | 839 | |
0df8b418 | 840 | /* Remove access breaks. */ |
e22f895c KI |
841 | hit_watchpoint_addr = 0; |
842 | for (i = 0; i < max_access_breaks; i++) | |
843 | { | |
844 | if (ab_address[i] != 0x00000000) | |
b4b4b794 | 845 | { |
e22f895c KI |
846 | buf[0] = SDI_READ_MEMORY; |
847 | store_long_parameter (buf + 1, 0xffff8100 + 4 * i); | |
848 | store_long_parameter (buf + 5, 4); | |
849 | serial_write (sdi_desc, buf, 9); | |
850 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
851 | if (c != '-' && recv_data (buf, 4) != -1) | |
b4b4b794 | 852 | { |
f5656ead | 853 | if (gdbarch_byte_order (target_gdbarch ()) == BFD_ENDIAN_BIG) |
b4b4b794 | 854 | { |
e22f895c KI |
855 | if ((buf[3] & 0x1) == 0x1) |
856 | hit_watchpoint_addr = ab_address[i]; | |
857 | } | |
858 | else | |
859 | { | |
860 | if ((buf[0] & 0x1) == 0x1) | |
861 | hit_watchpoint_addr = ab_address[i]; | |
b4b4b794 | 862 | } |
b4b4b794 | 863 | } |
b4b4b794 | 864 | |
e22f895c KI |
865 | send_three_arg_cmd (SDI_WRITE_MEMORY, 0xffff8100 + 4 * i, 4, |
866 | 0x00000000); | |
867 | } | |
b4b4b794 | 868 | } |
e22f895c KI |
869 | |
870 | if (remote_debug) | |
871 | fprintf_unfiltered (gdb_stdlog, "pc => 0x%lx\n", pc_addr); | |
b4b4b794 KI |
872 | |
873 | return inferior_ptid; | |
874 | } | |
875 | ||
876 | /* Terminate the open connection to the remote debugger. | |
877 | Use this when you want to detach and do something else | |
878 | with your gdb. */ | |
879 | static void | |
52554a0e | 880 | m32r_detach (struct target_ops *ops, const char *args, int from_tty) |
b4b4b794 KI |
881 | { |
882 | if (remote_debug) | |
883 | fprintf_unfiltered (gdb_stdlog, "m32r_detach(%d)\n", from_tty); | |
884 | ||
a493e3e2 | 885 | m32r_resume (ops, inferior_ptid, 0, GDB_SIGNAL_0); |
b4b4b794 | 886 | |
0df8b418 | 887 | /* Calls m32r_close to do the real work. */ |
7fdc1521 | 888 | unpush_target (ops); |
b4b4b794 KI |
889 | if (from_tty) |
890 | fprintf_unfiltered (gdb_stdlog, "Ending remote %s debugging\n", | |
891 | target_shortname); | |
892 | } | |
893 | ||
0df8b418 | 894 | /* Return the id of register number REGNO. */ |
b4b4b794 KI |
895 | |
896 | static int | |
897 | get_reg_id (int regno) | |
898 | { | |
899 | switch (regno) | |
900 | { | |
901 | case 20: | |
902 | return SDI_REG_BBPC; | |
903 | case 21: | |
904 | return SDI_REG_BPC; | |
905 | case 22: | |
906 | return SDI_REG_ACCL; | |
907 | case 23: | |
908 | return SDI_REG_ACCH; | |
909 | case 24: | |
910 | return SDI_REG_EVB; | |
911 | } | |
912 | ||
913 | return regno; | |
914 | } | |
915 | ||
b4b4b794 KI |
916 | /* Fetch register REGNO, or all registers if REGNO is -1. |
917 | Returns errno value. */ | |
918 | static void | |
28439f5e PA |
919 | m32r_fetch_register (struct target_ops *ops, |
920 | struct regcache *regcache, int regno) | |
b4b4b794 | 921 | { |
e17a4113 UW |
922 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
923 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
b4b4b794 | 924 | unsigned long val, val2, regid; |
b4b4b794 KI |
925 | |
926 | if (regno == -1) | |
28439f5e PA |
927 | { |
928 | for (regno = 0; | |
929 | regno < gdbarch_num_regs (get_regcache_arch (regcache)); | |
930 | regno++) | |
931 | m32r_fetch_register (ops, regcache, regno); | |
932 | } | |
b4b4b794 KI |
933 | else |
934 | { | |
948f8e3d | 935 | gdb_byte buffer[MAX_REGISTER_SIZE]; |
b4b4b794 KI |
936 | |
937 | regid = get_reg_id (regno); | |
e22f895c KI |
938 | send_one_arg_cmd (SDI_READ_CPU_REG, regid); |
939 | val = recv_long_data (); | |
b4b4b794 KI |
940 | |
941 | if (regid == SDI_REG_PSW) | |
942 | { | |
e22f895c KI |
943 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BBPSW); |
944 | val2 = recv_long_data (); | |
3e41d55f | 945 | val = ((0x00cf & val2) << 8) | ((0xcf00 & val) >> 8); |
b4b4b794 KI |
946 | } |
947 | ||
948 | if (remote_debug) | |
949 | fprintf_unfiltered (gdb_stdlog, "m32r_fetch_register(%d,0x%08lx)\n", | |
950 | regno, val); | |
951 | ||
952 | /* We got the number the register holds, but gdb expects to see a | |
953 | value in the target byte ordering. */ | |
e17a4113 | 954 | store_unsigned_integer (buffer, 4, byte_order, val); |
56be3814 | 955 | regcache_raw_supply (regcache, regno, buffer); |
b4b4b794 KI |
956 | } |
957 | return; | |
958 | } | |
959 | ||
b4b4b794 KI |
960 | /* Store register REGNO, or all if REGNO == 0. |
961 | Return errno value. */ | |
962 | static void | |
28439f5e PA |
963 | m32r_store_register (struct target_ops *ops, |
964 | struct regcache *regcache, int regno) | |
b4b4b794 KI |
965 | { |
966 | int regid; | |
967 | ULONGEST regval, tmp; | |
b4b4b794 KI |
968 | |
969 | if (regno == -1) | |
28439f5e PA |
970 | { |
971 | for (regno = 0; | |
972 | regno < gdbarch_num_regs (get_regcache_arch (regcache)); | |
973 | regno++) | |
974 | m32r_store_register (ops, regcache, regno); | |
975 | } | |
b4b4b794 KI |
976 | else |
977 | { | |
56be3814 | 978 | regcache_cooked_read_unsigned (regcache, regno, ®val); |
b4b4b794 KI |
979 | regid = get_reg_id (regno); |
980 | ||
981 | if (regid == SDI_REG_PSW) | |
982 | { | |
983 | unsigned long psw, bbpsw; | |
984 | ||
e22f895c KI |
985 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_PSW); |
986 | psw = recv_long_data (); | |
b4b4b794 | 987 | |
e22f895c KI |
988 | send_one_arg_cmd (SDI_READ_CPU_REG, SDI_REG_BBPSW); |
989 | bbpsw = recv_long_data (); | |
b4b4b794 | 990 | |
3e41d55f | 991 | tmp = (0x00cf & psw) | ((0x00cf & regval) << 8); |
e22f895c | 992 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_PSW, tmp); |
b4b4b794 | 993 | |
3e41d55f | 994 | tmp = (0x0030 & bbpsw) | ((0xcf00 & regval) >> 8); |
e22f895c | 995 | send_two_arg_cmd (SDI_WRITE_CPU_REG, SDI_REG_BBPSW, tmp); |
b4b4b794 KI |
996 | } |
997 | else | |
998 | { | |
e22f895c | 999 | send_two_arg_cmd (SDI_WRITE_CPU_REG, regid, regval); |
b4b4b794 KI |
1000 | } |
1001 | ||
1002 | if (remote_debug) | |
1003 | fprintf_unfiltered (gdb_stdlog, "m32r_store_register(%d,0x%08lu)\n", | |
1004 | regno, (unsigned long) regval); | |
1005 | } | |
1006 | } | |
1007 | ||
1008 | /* Get ready to modify the registers array. On machines which store | |
1009 | individual registers, this doesn't need to do anything. On machines | |
1010 | which store all the registers in one fell swoop, this makes sure | |
1011 | that registers contains all the registers from the program being | |
1012 | debugged. */ | |
1013 | ||
1014 | static void | |
f32dbf8c | 1015 | m32r_prepare_to_store (struct target_ops *self, struct regcache *regcache) |
b4b4b794 | 1016 | { |
0df8b418 | 1017 | /* Do nothing, since we can store individual regs. */ |
b4b4b794 KI |
1018 | if (remote_debug) |
1019 | fprintf_unfiltered (gdb_stdlog, "m32r_prepare_to_store()\n"); | |
1020 | } | |
1021 | ||
1022 | static void | |
1023 | m32r_files_info (struct target_ops *target) | |
1024 | { | |
0d18d720 | 1025 | const char *file = "nothing"; |
b4b4b794 KI |
1026 | |
1027 | if (exec_bfd) | |
1028 | { | |
1029 | file = bfd_get_filename (exec_bfd); | |
1030 | printf_filtered ("\tAttached to %s running program %s\n", | |
1031 | chip_name, file); | |
1032 | } | |
1033 | } | |
1034 | ||
a1583b1f PA |
1035 | /* Helper for m32r_xfer_partial that handles memory transfers. |
1036 | Arguments are like target_xfer_partial. */ | |
1037 | ||
1038 | static enum target_xfer_status | |
1039 | m32r_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, | |
1040 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
b4b4b794 KI |
1041 | { |
1042 | unsigned long taddr; | |
1043 | unsigned char buf[0x2000]; | |
1044 | int ret, c; | |
1045 | ||
1046 | taddr = memaddr; | |
1047 | ||
1048 | if (!mmu_on) | |
1049 | { | |
1050 | if ((taddr & 0xa0000000) == 0x80000000) | |
1051 | taddr &= 0x7fffffff; | |
1052 | } | |
1053 | ||
1054 | if (remote_debug) | |
1055 | { | |
a1583b1f PA |
1056 | if (writebuf != NULL) |
1057 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory(%s,%s,write)\n", | |
1058 | paddress (target_gdbarch (), memaddr), | |
1059 | plongest (len)); | |
b4b4b794 | 1060 | else |
a1583b1f PA |
1061 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory(%s,%s,read)\n", |
1062 | paddress (target_gdbarch (), memaddr), | |
1063 | plongest (len)); | |
b4b4b794 KI |
1064 | } |
1065 | ||
a1583b1f | 1066 | if (writebuf != NULL) |
b4b4b794 KI |
1067 | { |
1068 | buf[0] = SDI_WRITE_MEMORY; | |
1069 | store_long_parameter (buf + 1, taddr); | |
1070 | store_long_parameter (buf + 5, len); | |
1071 | if (len < 0x1000) | |
1072 | { | |
a1583b1f | 1073 | memcpy (buf + 9, writebuf, len); |
b4b4b794 KI |
1074 | ret = send_data (buf, len + 9) - 9; |
1075 | } | |
1076 | else | |
1077 | { | |
1078 | if (serial_write (sdi_desc, buf, 9) != 0) | |
1079 | { | |
1080 | if (remote_debug) | |
1081 | fprintf_unfiltered (gdb_stdlog, | |
1082 | "m32r_xfer_memory() failed\n"); | |
96c4f946 | 1083 | return TARGET_XFER_EOF; |
b4b4b794 | 1084 | } |
a1583b1f | 1085 | ret = send_data (writebuf, len); |
b4b4b794 KI |
1086 | } |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | buf[0] = SDI_READ_MEMORY; | |
1091 | store_long_parameter (buf + 1, taddr); | |
1092 | store_long_parameter (buf + 5, len); | |
1093 | if (serial_write (sdi_desc, buf, 9) != 0) | |
1094 | { | |
1095 | if (remote_debug) | |
1096 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory() failed\n"); | |
96c4f946 | 1097 | return TARGET_XFER_EOF; |
b4b4b794 KI |
1098 | } |
1099 | ||
1100 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
1101 | if (c < 0 || c == '-') | |
1102 | { | |
1103 | if (remote_debug) | |
1104 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory() failed\n"); | |
96c4f946 | 1105 | return TARGET_XFER_EOF; |
b4b4b794 KI |
1106 | } |
1107 | ||
a1583b1f | 1108 | ret = recv_data (readbuf, len); |
b4b4b794 KI |
1109 | } |
1110 | ||
1111 | if (ret <= 0) | |
1112 | { | |
1113 | if (remote_debug) | |
1114 | fprintf_unfiltered (gdb_stdlog, "m32r_xfer_memory() fails\n"); | |
a1583b1f | 1115 | return TARGET_XFER_E_IO; |
b4b4b794 KI |
1116 | } |
1117 | ||
a1583b1f PA |
1118 | *xfered_len = ret; |
1119 | return TARGET_XFER_OK; | |
1120 | } | |
1121 | ||
1122 | /* Target to_xfer_partial implementation. */ | |
1123 | ||
1124 | static enum target_xfer_status | |
1125 | m32r_xfer_partial (struct target_ops *ops, enum target_object object, | |
1126 | const char *annex, gdb_byte *readbuf, | |
1127 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
1128 | ULONGEST *xfered_len) | |
1129 | { | |
1130 | switch (object) | |
1131 | { | |
1132 | case TARGET_OBJECT_MEMORY: | |
1133 | return m32r_xfer_memory (readbuf, writebuf, offset, len, xfered_len); | |
1134 | ||
1135 | default: | |
1136 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
1137 | readbuf, writebuf, offset, len, | |
1138 | xfered_len); | |
1139 | } | |
b4b4b794 KI |
1140 | } |
1141 | ||
1142 | static void | |
7d85a9c0 | 1143 | m32r_kill (struct target_ops *ops) |
b4b4b794 KI |
1144 | { |
1145 | if (remote_debug) | |
1146 | fprintf_unfiltered (gdb_stdlog, "m32r_kill()\n"); | |
1147 | ||
1148 | inferior_ptid = null_ptid; | |
e5ef4d75 | 1149 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
1150 | |
1151 | return; | |
1152 | } | |
1153 | ||
1154 | /* Clean up when a program exits. | |
1155 | ||
1156 | The program actually lives on in the remote processor's RAM, and may be | |
1157 | run again without a download. Don't leave it full of breakpoint | |
1158 | instructions. */ | |
1159 | ||
1160 | static void | |
136d6dae | 1161 | m32r_mourn_inferior (struct target_ops *ops) |
b4b4b794 KI |
1162 | { |
1163 | if (remote_debug) | |
1164 | fprintf_unfiltered (gdb_stdlog, "m32r_mourn_inferior()\n"); | |
1165 | ||
1166 | remove_breakpoints (); | |
1167 | generic_mourn_inferior (); | |
1168 | } | |
1169 | ||
1170 | static int | |
3db08215 MM |
1171 | m32r_insert_breakpoint (struct target_ops *ops, |
1172 | struct gdbarch *gdbarch, | |
a6d9a66e | 1173 | struct bp_target_info *bp_tgt) |
b4b4b794 | 1174 | { |
0d5ed153 | 1175 | CORE_ADDR addr = bp_tgt->placed_address = bp_tgt->reqstd_address; |
b4b4b794 KI |
1176 | int ib_breakpoints; |
1177 | unsigned char buf[13]; | |
1178 | int i, c; | |
1179 | ||
1180 | if (remote_debug) | |
ec20a626 | 1181 | fprintf_unfiltered (gdb_stdlog, "m32r_insert_breakpoint(%s,...)\n", |
5af949e3 | 1182 | paddress (gdbarch, addr)); |
b4b4b794 KI |
1183 | |
1184 | if (use_ib_breakpoints) | |
1185 | ib_breakpoints = max_ib_breakpoints; | |
1186 | else | |
1187 | ib_breakpoints = 0; | |
1188 | ||
1189 | for (i = 0; i < MAX_BREAKPOINTS; i++) | |
1190 | { | |
1191 | if (bp_address[i] == 0xffffffff) | |
1192 | { | |
1193 | bp_address[i] = addr; | |
1194 | if (i >= ib_breakpoints) | |
1195 | { | |
1196 | buf[0] = SDI_READ_MEMORY; | |
1197 | if (mmu_on) | |
1198 | store_long_parameter (buf + 1, addr & 0xfffffffc); | |
1199 | else | |
1200 | store_long_parameter (buf + 1, addr & 0x7ffffffc); | |
1201 | store_long_parameter (buf + 5, 4); | |
1202 | serial_write (sdi_desc, buf, 9); | |
1203 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
1204 | if (c != '-') | |
1205 | recv_data (bp_data[i], 4); | |
1206 | } | |
1207 | return 0; | |
1208 | } | |
1209 | } | |
1210 | ||
8a3fe4f8 | 1211 | error (_("Too many breakpoints")); |
b4b4b794 KI |
1212 | return 1; |
1213 | } | |
1214 | ||
1215 | static int | |
3db08215 MM |
1216 | m32r_remove_breakpoint (struct target_ops *ops, |
1217 | struct gdbarch *gdbarch, | |
a6d9a66e | 1218 | struct bp_target_info *bp_tgt) |
b4b4b794 | 1219 | { |
8181d85f | 1220 | CORE_ADDR addr = bp_tgt->placed_address; |
b4b4b794 KI |
1221 | int i; |
1222 | ||
1223 | if (remote_debug) | |
ec20a626 | 1224 | fprintf_unfiltered (gdb_stdlog, "m32r_remove_breakpoint(%s)\n", |
5af949e3 | 1225 | paddress (gdbarch, addr)); |
b4b4b794 KI |
1226 | |
1227 | for (i = 0; i < MAX_BREAKPOINTS; i++) | |
1228 | { | |
1229 | if (bp_address[i] == addr) | |
1230 | { | |
1231 | bp_address[i] = 0xffffffff; | |
1232 | break; | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | static void | |
9cbe5fff | 1240 | m32r_load (struct target_ops *self, const char *args, int from_tty) |
b4b4b794 | 1241 | { |
9cbe5fff | 1242 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
b4b4b794 KI |
1243 | asection *section; |
1244 | bfd *pbfd; | |
1245 | bfd_vma entry; | |
1246 | char *filename; | |
1247 | int quiet; | |
1248 | int nostart; | |
2b71414d | 1249 | struct timeval start_time, end_time; |
0df8b418 | 1250 | unsigned long data_count; /* Number of bytes transferred to memory. */ |
b4b4b794 KI |
1251 | static RETSIGTYPE (*prev_sigint) (); |
1252 | ||
0df8b418 | 1253 | /* for direct tcp connections, we can do a fast binary download. */ |
b4b4b794 KI |
1254 | quiet = 0; |
1255 | nostart = 0; | |
1256 | filename = NULL; | |
1257 | ||
1258 | while (*args != '\000') | |
1259 | { | |
9cbe5fff | 1260 | char *arg = extract_arg_const (&args); |
b4b4b794 | 1261 | |
9cbe5fff TT |
1262 | if (arg == NULL) |
1263 | break; | |
1264 | make_cleanup (xfree, arg); | |
b4b4b794 KI |
1265 | |
1266 | if (*arg != '-') | |
1267 | filename = arg; | |
1268 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
1269 | quiet = 1; | |
1270 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
1271 | nostart = 1; | |
1272 | else | |
8a3fe4f8 | 1273 | error (_("Unknown option `%s'"), arg); |
b4b4b794 KI |
1274 | } |
1275 | ||
1276 | if (!filename) | |
1277 | filename = get_exec_file (1); | |
1278 | ||
1c00ec6b | 1279 | pbfd = gdb_bfd_open (filename, gnutarget, -1); |
b4b4b794 | 1280 | if (pbfd == NULL) |
9cbe5fff TT |
1281 | perror_with_name (filename); |
1282 | make_cleanup_bfd_unref (pbfd); | |
b4b4b794 KI |
1283 | |
1284 | if (!bfd_check_format (pbfd, bfd_object)) | |
8a3fe4f8 | 1285 | error (_("\"%s\" is not an object file: %s"), filename, |
b4b4b794 KI |
1286 | bfd_errmsg (bfd_get_error ())); |
1287 | ||
2b71414d | 1288 | gettimeofday (&start_time, NULL); |
b4b4b794 KI |
1289 | data_count = 0; |
1290 | ||
1291 | interrupted = 0; | |
1292 | prev_sigint = signal (SIGINT, gdb_cntrl_c); | |
1293 | ||
1294 | for (section = pbfd->sections; section; section = section->next) | |
1295 | { | |
1296 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
1297 | { | |
1298 | bfd_vma section_address; | |
1299 | bfd_size_type section_size; | |
1300 | file_ptr fptr; | |
1301 | int n; | |
1302 | ||
1303 | section_address = bfd_section_lma (pbfd, section); | |
2c500098 | 1304 | section_size = bfd_get_section_size (section); |
b4b4b794 KI |
1305 | |
1306 | if (!mmu_on) | |
1307 | { | |
1308 | if ((section_address & 0xa0000000) == 0x80000000) | |
1309 | section_address &= 0x7fffffff; | |
1310 | } | |
1311 | ||
1312 | if (!quiet) | |
1313 | printf_filtered ("[Loading section %s at 0x%lx (%d bytes)]\n", | |
1314 | bfd_get_section_name (pbfd, section), | |
ec20a626 UW |
1315 | (unsigned long) section_address, |
1316 | (int) section_size); | |
b4b4b794 KI |
1317 | |
1318 | fptr = 0; | |
1319 | ||
1320 | data_count += section_size; | |
1321 | ||
1322 | n = 0; | |
1323 | while (section_size > 0) | |
1324 | { | |
1325 | char unsigned buf[0x1000 + 9]; | |
1326 | int count; | |
1327 | ||
1328 | count = min (section_size, 0x1000); | |
1329 | ||
1330 | buf[0] = SDI_WRITE_MEMORY; | |
1331 | store_long_parameter (buf + 1, section_address); | |
1332 | store_long_parameter (buf + 5, count); | |
1333 | ||
1334 | bfd_get_section_contents (pbfd, section, buf + 9, fptr, count); | |
1335 | if (send_data (buf, count + 9) <= 0) | |
8a3fe4f8 | 1336 | error (_("Error while downloading %s section."), |
b4b4b794 KI |
1337 | bfd_get_section_name (pbfd, section)); |
1338 | ||
1339 | if (!quiet) | |
1340 | { | |
1341 | printf_unfiltered ("."); | |
1342 | if (n++ > 60) | |
1343 | { | |
1344 | printf_unfiltered ("\n"); | |
1345 | n = 0; | |
1346 | } | |
1347 | gdb_flush (gdb_stdout); | |
1348 | } | |
1349 | ||
1350 | section_address += count; | |
1351 | fptr += count; | |
1352 | section_size -= count; | |
1353 | ||
1354 | if (interrupted) | |
1355 | break; | |
1356 | } | |
1357 | ||
1358 | if (!quiet && !interrupted) | |
1359 | { | |
1360 | printf_unfiltered ("done.\n"); | |
1361 | gdb_flush (gdb_stdout); | |
1362 | } | |
1363 | } | |
1364 | ||
1365 | if (interrupted) | |
1366 | { | |
1367 | printf_unfiltered ("Interrupted.\n"); | |
1368 | break; | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | interrupted = 0; | |
1373 | signal (SIGINT, prev_sigint); | |
1374 | ||
2b71414d | 1375 | gettimeofday (&end_time, NULL); |
b4b4b794 | 1376 | |
0df8b418 | 1377 | /* Make the PC point at the start address. */ |
b4b4b794 | 1378 | if (exec_bfd) |
fb14de7b UW |
1379 | regcache_write_pc (get_current_regcache (), |
1380 | bfd_get_start_address (exec_bfd)); | |
b4b4b794 | 1381 | |
0df8b418 | 1382 | inferior_ptid = null_ptid; /* No process now. */ |
e5ef4d75 | 1383 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
1384 | |
1385 | /* This is necessary because many things were based on the PC at the time | |
1386 | that we attached to the monitor, which is no longer valid now that we | |
1387 | have loaded new code (and just changed the PC). Another way to do this | |
1388 | might be to call normal_stop, except that the stack may not be valid, | |
0df8b418 | 1389 | and things would get horribly confused... */ |
b4b4b794 | 1390 | |
c1e56572 | 1391 | clear_symtab_users (0); |
b4b4b794 KI |
1392 | |
1393 | if (!nostart) | |
1394 | { | |
1395 | entry = bfd_get_start_address (pbfd); | |
1396 | ||
1397 | if (!quiet) | |
ec20a626 UW |
1398 | printf_unfiltered ("[Starting %s at 0x%lx]\n", filename, |
1399 | (unsigned long) entry); | |
b4b4b794 KI |
1400 | } |
1401 | ||
2b71414d DJ |
1402 | print_transfer_performance (gdb_stdout, data_count, 0, &start_time, |
1403 | &end_time); | |
b4b4b794 KI |
1404 | |
1405 | do_cleanups (old_chain); | |
1406 | } | |
1407 | ||
1408 | static void | |
1eab8a48 | 1409 | m32r_stop (struct target_ops *self, ptid_t ptid) |
b4b4b794 | 1410 | { |
b4b4b794 KI |
1411 | if (remote_debug) |
1412 | fprintf_unfiltered (gdb_stdlog, "m32r_stop()\n"); | |
1413 | ||
e22f895c | 1414 | send_cmd (SDI_STOP_CPU); |
b4b4b794 KI |
1415 | |
1416 | return; | |
1417 | } | |
1418 | ||
1419 | ||
37814c18 KI |
1420 | /* Tell whether this target can support a hardware breakpoint. CNT |
1421 | is the number of hardware breakpoints already installed. This | |
d92524f1 | 1422 | implements the target_can_use_hardware_watchpoint macro. */ |
b4b4b794 | 1423 | |
63807e1d | 1424 | static int |
5461485a TT |
1425 | m32r_can_use_hw_watchpoint (struct target_ops *self, |
1426 | int type, int cnt, int othertype) | |
b4b4b794 | 1427 | { |
37814c18 | 1428 | return sdi_desc != NULL && cnt < max_access_breaks; |
b4b4b794 KI |
1429 | } |
1430 | ||
1431 | /* Set a data watchpoint. ADDR and LEN should be obvious. TYPE is 0 | |
1432 | for a write watchpoint, 1 for a read watchpoint, or 2 for a read/write | |
0df8b418 | 1433 | watchpoint. */ |
b4b4b794 | 1434 | |
63807e1d | 1435 | static int |
7bb99c53 TT |
1436 | m32r_insert_watchpoint (struct target_ops *self, |
1437 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 1438 | struct expression *cond) |
b4b4b794 KI |
1439 | { |
1440 | int i; | |
1441 | ||
1442 | if (remote_debug) | |
ec20a626 | 1443 | fprintf_unfiltered (gdb_stdlog, "m32r_insert_watchpoint(%s,%d,%d)\n", |
f5656ead | 1444 | paddress (target_gdbarch (), addr), len, type); |
b4b4b794 KI |
1445 | |
1446 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) | |
1447 | { | |
1448 | if (ab_address[i] == 0x00000000) | |
1449 | { | |
1450 | ab_address[i] = addr; | |
1451 | ab_size[i] = len; | |
1452 | ab_type[i] = type; | |
1453 | return 0; | |
1454 | } | |
1455 | } | |
1456 | ||
8a3fe4f8 | 1457 | error (_("Too many watchpoints")); |
b4b4b794 KI |
1458 | return 1; |
1459 | } | |
1460 | ||
63807e1d | 1461 | static int |
11b5219a TT |
1462 | m32r_remove_watchpoint (struct target_ops *self, |
1463 | CORE_ADDR addr, int len, int type, | |
0cf6dd15 | 1464 | struct expression *cond) |
b4b4b794 KI |
1465 | { |
1466 | int i; | |
1467 | ||
1468 | if (remote_debug) | |
ec20a626 | 1469 | fprintf_unfiltered (gdb_stdlog, "m32r_remove_watchpoint(%s,%d,%d)\n", |
f5656ead | 1470 | paddress (target_gdbarch (), addr), len, type); |
b4b4b794 KI |
1471 | |
1472 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) | |
1473 | { | |
1474 | if (ab_address[i] == addr) | |
1475 | { | |
1476 | ab_address[i] = 0x00000000; | |
1477 | break; | |
1478 | } | |
1479 | } | |
1480 | ||
1481 | return 0; | |
1482 | } | |
1483 | ||
63807e1d | 1484 | static int |
4aa7a7f5 | 1485 | m32r_stopped_data_address (struct target_ops *target, CORE_ADDR *addr_p) |
b4b4b794 | 1486 | { |
4aa7a7f5 | 1487 | int rc = 0; |
123f5f96 | 1488 | |
4aa7a7f5 JJ |
1489 | if (hit_watchpoint_addr != 0x00000000) |
1490 | { | |
1491 | *addr_p = hit_watchpoint_addr; | |
1492 | rc = 1; | |
1493 | } | |
1494 | return rc; | |
b4b4b794 KI |
1495 | } |
1496 | ||
63807e1d | 1497 | static int |
6a109b6b | 1498 | m32r_stopped_by_watchpoint (struct target_ops *ops) |
b4b4b794 | 1499 | { |
4aa7a7f5 | 1500 | CORE_ADDR addr; |
123f5f96 | 1501 | |
4aa7a7f5 | 1502 | return m32r_stopped_data_address (¤t_target, &addr); |
b4b4b794 KI |
1503 | } |
1504 | ||
4d6c6261 PA |
1505 | /* Check to see if a thread is still alive. */ |
1506 | ||
1507 | static int | |
28439f5e | 1508 | m32r_thread_alive (struct target_ops *ops, ptid_t ptid) |
4d6c6261 PA |
1509 | { |
1510 | if (ptid_equal (ptid, remote_m32r_ptid)) | |
1511 | /* The main task is always alive. */ | |
1512 | return 1; | |
1513 | ||
1514 | return 0; | |
1515 | } | |
1516 | ||
1517 | /* Convert a thread ID to a string. Returns the string in a static | |
1518 | buffer. */ | |
1519 | ||
1520 | static char * | |
117de6a9 | 1521 | m32r_pid_to_str (struct target_ops *ops, ptid_t ptid) |
4d6c6261 PA |
1522 | { |
1523 | static char buf[64]; | |
1524 | ||
1525 | if (ptid_equal (remote_m32r_ptid, ptid)) | |
1526 | { | |
1527 | xsnprintf (buf, sizeof buf, "Thread <main>"); | |
1528 | return buf; | |
1529 | } | |
1530 | ||
1531 | return normal_pid_to_str (ptid); | |
1532 | } | |
b4b4b794 KI |
1533 | |
1534 | static void | |
1535 | sdireset_command (char *args, int from_tty) | |
1536 | { | |
b4b4b794 KI |
1537 | if (remote_debug) |
1538 | fprintf_unfiltered (gdb_stdlog, "m32r_sdireset()\n"); | |
1539 | ||
e22f895c | 1540 | send_cmd (SDI_OPEN); |
b4b4b794 KI |
1541 | |
1542 | inferior_ptid = null_ptid; | |
e5ef4d75 | 1543 | delete_thread_silent (remote_m32r_ptid); |
b4b4b794 KI |
1544 | } |
1545 | ||
1546 | ||
1547 | static void | |
1548 | sdistatus_command (char *args, int from_tty) | |
1549 | { | |
1550 | unsigned char buf[4096]; | |
1551 | int i, c; | |
1552 | ||
1553 | if (remote_debug) | |
1554 | fprintf_unfiltered (gdb_stdlog, "m32r_sdireset()\n"); | |
1555 | ||
1556 | if (!sdi_desc) | |
1557 | return; | |
1558 | ||
e22f895c | 1559 | send_cmd (SDI_STATUS); |
b4b4b794 KI |
1560 | for (i = 0; i < 4096; i++) |
1561 | { | |
1562 | c = serial_readchar (sdi_desc, SDI_TIMEOUT); | |
1563 | if (c < 0) | |
717eb1cf | 1564 | return; |
b4b4b794 KI |
1565 | buf[i] = c; |
1566 | if (c == 0) | |
717eb1cf AC |
1567 | break; |
1568 | } | |
b4b4b794 KI |
1569 | |
1570 | printf_filtered ("%s", buf); | |
1571 | } | |
1572 | ||
1573 | ||
1574 | static void | |
1575 | debug_chaos_command (char *args, int from_tty) | |
1576 | { | |
1577 | unsigned char buf[3]; | |
1578 | ||
1579 | buf[0] = SDI_SET_ATTR; | |
1580 | buf[1] = SDI_ATTR_CACHE; | |
1581 | buf[2] = SDI_CACHE_TYPE_CHAOS; | |
1582 | send_data (buf, 3); | |
1583 | } | |
1584 | ||
1585 | ||
1586 | static void | |
1587 | use_debug_dma_command (char *args, int from_tty) | |
1588 | { | |
1589 | unsigned char buf[3]; | |
1590 | ||
1591 | buf[0] = SDI_SET_ATTR; | |
1592 | buf[1] = SDI_ATTR_MEM_ACCESS; | |
1593 | buf[2] = SDI_MEM_ACCESS_DEBUG_DMA; | |
1594 | send_data (buf, 3); | |
1595 | } | |
1596 | ||
1597 | static void | |
1598 | use_mon_code_command (char *args, int from_tty) | |
1599 | { | |
1600 | unsigned char buf[3]; | |
1601 | ||
1602 | buf[0] = SDI_SET_ATTR; | |
1603 | buf[1] = SDI_ATTR_MEM_ACCESS; | |
1604 | buf[2] = SDI_MEM_ACCESS_MON_CODE; | |
1605 | send_data (buf, 3); | |
1606 | } | |
1607 | ||
1608 | ||
1609 | static void | |
1610 | use_ib_breakpoints_command (char *args, int from_tty) | |
1611 | { | |
1612 | use_ib_breakpoints = 1; | |
1613 | } | |
1614 | ||
1615 | static void | |
1616 | use_dbt_breakpoints_command (char *args, int from_tty) | |
1617 | { | |
1618 | use_ib_breakpoints = 0; | |
1619 | } | |
1620 | ||
c35b1492 PA |
1621 | static int |
1622 | m32r_return_one (struct target_ops *target) | |
1623 | { | |
1624 | return 1; | |
1625 | } | |
b4b4b794 | 1626 | |
aeaec162 TT |
1627 | /* Implementation of the to_has_execution method. */ |
1628 | ||
1629 | static int | |
1630 | m32r_has_execution (struct target_ops *target, ptid_t the_ptid) | |
1631 | { | |
1632 | return 1; | |
1633 | } | |
1634 | ||
0df8b418 | 1635 | /* Define the target subroutine names. */ |
b4b4b794 KI |
1636 | |
1637 | struct target_ops m32r_ops; | |
1638 | ||
1639 | static void | |
1640 | init_m32r_ops (void) | |
1641 | { | |
1642 | m32r_ops.to_shortname = "m32rsdi"; | |
1643 | m32r_ops.to_longname = "Remote M32R debugging over SDI interface"; | |
1644 | m32r_ops.to_doc = "Use an M32R board using SDI debugging protocol."; | |
1645 | m32r_ops.to_open = m32r_open; | |
1646 | m32r_ops.to_close = m32r_close; | |
1647 | m32r_ops.to_detach = m32r_detach; | |
1648 | m32r_ops.to_resume = m32r_resume; | |
1649 | m32r_ops.to_wait = m32r_wait; | |
1650 | m32r_ops.to_fetch_registers = m32r_fetch_register; | |
1651 | m32r_ops.to_store_registers = m32r_store_register; | |
1652 | m32r_ops.to_prepare_to_store = m32r_prepare_to_store; | |
a1583b1f | 1653 | m32r_ops.to_xfer_partial = m32r_xfer_partial; |
b4b4b794 KI |
1654 | m32r_ops.to_files_info = m32r_files_info; |
1655 | m32r_ops.to_insert_breakpoint = m32r_insert_breakpoint; | |
1656 | m32r_ops.to_remove_breakpoint = m32r_remove_breakpoint; | |
37814c18 KI |
1657 | m32r_ops.to_can_use_hw_breakpoint = m32r_can_use_hw_watchpoint; |
1658 | m32r_ops.to_insert_watchpoint = m32r_insert_watchpoint; | |
1659 | m32r_ops.to_remove_watchpoint = m32r_remove_watchpoint; | |
1660 | m32r_ops.to_stopped_by_watchpoint = m32r_stopped_by_watchpoint; | |
1661 | m32r_ops.to_stopped_data_address = m32r_stopped_data_address; | |
b4b4b794 KI |
1662 | m32r_ops.to_kill = m32r_kill; |
1663 | m32r_ops.to_load = m32r_load; | |
1664 | m32r_ops.to_create_inferior = m32r_create_inferior; | |
1665 | m32r_ops.to_mourn_inferior = m32r_mourn_inferior; | |
1666 | m32r_ops.to_stop = m32r_stop; | |
49d03eab | 1667 | m32r_ops.to_log_command = serial_log_command; |
4d6c6261 PA |
1668 | m32r_ops.to_thread_alive = m32r_thread_alive; |
1669 | m32r_ops.to_pid_to_str = m32r_pid_to_str; | |
b4b4b794 | 1670 | m32r_ops.to_stratum = process_stratum; |
c35b1492 PA |
1671 | m32r_ops.to_has_all_memory = m32r_return_one; |
1672 | m32r_ops.to_has_memory = m32r_return_one; | |
1673 | m32r_ops.to_has_stack = m32r_return_one; | |
1674 | m32r_ops.to_has_registers = m32r_return_one; | |
aeaec162 | 1675 | m32r_ops.to_has_execution = m32r_has_execution; |
b4b4b794 KI |
1676 | m32r_ops.to_magic = OPS_MAGIC; |
1677 | }; | |
1678 | ||
1679 | ||
1680 | extern initialize_file_ftype _initialize_remote_m32r; | |
1681 | ||
1682 | void | |
1683 | _initialize_remote_m32r (void) | |
1684 | { | |
1685 | int i; | |
1686 | ||
1687 | init_m32r_ops (); | |
1688 | ||
0df8b418 | 1689 | /* Initialize breakpoints. */ |
b4b4b794 KI |
1690 | for (i = 0; i < MAX_BREAKPOINTS; i++) |
1691 | bp_address[i] = 0xffffffff; | |
1692 | ||
0df8b418 | 1693 | /* Initialize access breaks. */ |
b4b4b794 KI |
1694 | for (i = 0; i < MAX_ACCESS_BREAKS; i++) |
1695 | ab_address[i] = 0x00000000; | |
1696 | ||
1697 | add_target (&m32r_ops); | |
1698 | ||
1699 | add_com ("sdireset", class_obscure, sdireset_command, | |
1bedd215 | 1700 | _("Reset SDI connection.")); |
b4b4b794 KI |
1701 | |
1702 | add_com ("sdistatus", class_obscure, sdistatus_command, | |
1bedd215 | 1703 | _("Show status of SDI connection.")); |
b4b4b794 KI |
1704 | |
1705 | add_com ("debug_chaos", class_obscure, debug_chaos_command, | |
1bedd215 | 1706 | _("Debug M32R/Chaos.")); |
b4b4b794 KI |
1707 | |
1708 | add_com ("use_debug_dma", class_obscure, use_debug_dma_command, | |
1bedd215 | 1709 | _("Use debug DMA mem access.")); |
b4b4b794 | 1710 | add_com ("use_mon_code", class_obscure, use_mon_code_command, |
1bedd215 | 1711 | _("Use mon code mem access.")); |
b4b4b794 KI |
1712 | |
1713 | add_com ("use_ib_break", class_obscure, use_ib_breakpoints_command, | |
1bedd215 | 1714 | _("Set breakpoints by IB break.")); |
b4b4b794 | 1715 | add_com ("use_dbt_break", class_obscure, use_dbt_breakpoints_command, |
1bedd215 | 1716 | _("Set breakpoints by dbt.")); |
e5ef4d75 PA |
1717 | |
1718 | /* Yes, 42000 is arbitrary. The only sense out of it, is that it | |
1719 | isn't 0. */ | |
1720 | remote_m32r_ptid = ptid_build (42000, 0, 42000); | |
b4b4b794 | 1721 | } |