Commit | Line | Data |
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c906108c | 1 | /* Memory-access and commands for remote VxWorks processes, for GDB. |
29e57380 | 2 | Copyright (C) 1990-95, 1997-98, 1999, 2001 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Wind River Systems and Cygnus Support. |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "frame.h" | |
24 | #include "inferior.h" | |
c906108c SS |
25 | #include "target.h" |
26 | #include "gdbcore.h" | |
27 | #include "command.h" | |
28 | #include "symtab.h" | |
29 | #include "complaints.h" | |
30 | #include "gdbcmd.h" | |
c5aa993b | 31 | #include "bfd.h" /* Required by objfiles.h. */ |
1adeb98a | 32 | #include "symfile.h" |
c906108c SS |
33 | #include "objfiles.h" |
34 | #include "gdb-stabs.h" | |
35 | ||
36 | #include "gdb_string.h" | |
37 | #include <errno.h> | |
38 | #include <signal.h> | |
39 | #include <fcntl.h> | |
40 | #include <sys/types.h> | |
41 | #include <sys/socket.h> | |
42 | #define malloc bogon_malloc /* Sun claims "char *malloc()" not void * */ | |
43 | #define free bogon_free /* Sun claims "int free()" not void */ | |
44 | #define realloc bogon_realloc /* Sun claims "char *realloc()", not void * */ | |
45 | #include <rpc/rpc.h> | |
46 | #undef malloc | |
47 | #undef free | |
48 | #undef realloc | |
49 | #include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */ | |
50 | #include <netdb.h> | |
51 | #include "vx-share/ptrace.h" | |
52 | #include "vx-share/xdr_ptrace.h" | |
53 | #include "vx-share/xdr_ld.h" | |
54 | #include "vx-share/xdr_rdb.h" | |
55 | #include "vx-share/dbgRpcLib.h" | |
56 | ||
57 | #include <symtab.h> | |
58 | ||
59 | /* Maximum number of bytes to transfer in a single | |
60 | PTRACE_{READ,WRITE}DATA request. */ | |
61 | #define VX_MEMXFER_MAX 4096 | |
62 | ||
63 | extern void vx_read_register (); | |
64 | extern void vx_write_register (); | |
65 | extern void symbol_file_command (); | |
c5aa993b | 66 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
c906108c SS |
67 | |
68 | static int net_step (); | |
69 | static int net_ptrace_clnt_call (); /* Forward decl */ | |
c5aa993b | 70 | static enum clnt_stat net_clnt_call (); /* Forward decl */ |
c906108c SS |
71 | |
72 | /* Target ops structure for accessing memory and such over the net */ | |
73 | ||
74 | static struct target_ops vx_ops; | |
75 | ||
76 | /* Target ops structure for accessing VxWorks child processes over the net */ | |
77 | ||
78 | static struct target_ops vx_run_ops; | |
79 | ||
80 | /* Saved name of target host and called function for "info files". | |
81 | Both malloc'd. */ | |
82 | ||
83 | static char *vx_host; | |
c5aa993b | 84 | static char *vx_running; /* Called function */ |
c906108c SS |
85 | |
86 | /* Nonzero means target that is being debugged remotely has a floating | |
87 | point processor. */ | |
88 | ||
89 | int target_has_fp; | |
90 | ||
91 | /* Default error message when the network is forking up. */ | |
92 | ||
93 | static const char rpcerr[] = "network target debugging: rpc error"; | |
94 | ||
c5aa993b | 95 | CLIENT *pClient; /* client used in net debugging */ |
c906108c SS |
96 | static int ptraceSock = RPC_ANYSOCK; |
97 | ||
c5aa993b | 98 | enum clnt_stat net_clnt_call (); |
c906108c SS |
99 | static void parse_args (); |
100 | ||
c5aa993b JM |
101 | static struct timeval rpcTimeout = |
102 | {10, 0}; | |
c906108c SS |
103 | |
104 | static char *skip_white_space (); | |
105 | static char *find_white_space (); | |
c5aa993b | 106 | |
c906108c SS |
107 | /* Tell the VxWorks target system to download a file. |
108 | The load addresses of the text, data, and bss segments are | |
109 | stored in *pTextAddr, *pDataAddr, and *pBssAddr (respectively). | |
110 | Returns 0 for success, -1 for failure. */ | |
111 | ||
112 | static int | |
fba45db2 KB |
113 | net_load (char *filename, CORE_ADDR *pTextAddr, CORE_ADDR *pDataAddr, |
114 | CORE_ADDR *pBssAddr) | |
c906108c SS |
115 | { |
116 | enum clnt_stat status; | |
117 | struct ldfile ldstruct; | |
118 | struct timeval load_timeout; | |
119 | ||
120 | memset ((char *) &ldstruct, '\0', sizeof (ldstruct)); | |
121 | ||
122 | /* We invoke clnt_call () here directly, instead of through | |
123 | net_clnt_call (), because we need to set a large timeout value. | |
124 | The load on the target side can take quite a while, easily | |
125 | more than 10 seconds. The user can kill this call by typing | |
126 | CTRL-C if there really is a problem with the load. | |
127 | ||
128 | Do not change the tv_sec value without checking -- select() imposes | |
129 | a limit of 10**8 on it for no good reason that I can see... */ | |
130 | ||
c5aa993b | 131 | load_timeout.tv_sec = 99999999; /* A large number, effectively inf. */ |
c906108c | 132 | load_timeout.tv_usec = 0; |
c5aa993b | 133 | |
c906108c SS |
134 | status = clnt_call (pClient, VX_LOAD, xdr_wrapstring, &filename, xdr_ldfile, |
135 | &ldstruct, load_timeout); | |
136 | ||
137 | if (status == RPC_SUCCESS) | |
138 | { | |
139 | if (*ldstruct.name == 0) /* load failed on VxWorks side */ | |
140 | return -1; | |
141 | *pTextAddr = ldstruct.txt_addr; | |
142 | *pDataAddr = ldstruct.data_addr; | |
143 | *pBssAddr = ldstruct.bss_addr; | |
144 | return 0; | |
145 | } | |
146 | else | |
147 | return -1; | |
148 | } | |
149 | ||
150 | /* returns 0 if successful, errno if RPC failed or VxWorks complains. */ | |
151 | ||
152 | static int | |
fba45db2 | 153 | net_break (int addr, u_long procnum) |
c906108c SS |
154 | { |
155 | enum clnt_stat status; | |
156 | int break_status; | |
c5aa993b JM |
157 | Rptrace ptrace_in; /* XXX This is stupid. It doesn't need to be a ptrace |
158 | structure. How about something smaller? */ | |
c906108c SS |
159 | |
160 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); | |
161 | break_status = 0; | |
162 | ||
163 | ptrace_in.addr = addr; | |
164 | ptrace_in.pid = inferior_pid; | |
165 | ||
166 | status = net_clnt_call (procnum, xdr_rptrace, &ptrace_in, xdr_int, | |
167 | &break_status); | |
168 | ||
169 | if (status != RPC_SUCCESS) | |
c5aa993b | 170 | return errno; |
c906108c SS |
171 | |
172 | if (break_status == -1) | |
173 | return ENOMEM; | |
c5aa993b | 174 | return break_status; /* probably (FIXME) zero */ |
c906108c SS |
175 | } |
176 | ||
177 | /* returns 0 if successful, errno otherwise */ | |
178 | ||
179 | static int | |
fba45db2 | 180 | vx_insert_breakpoint (int addr) |
c906108c SS |
181 | { |
182 | return net_break (addr, VX_BREAK_ADD); | |
183 | } | |
184 | ||
185 | /* returns 0 if successful, errno otherwise */ | |
186 | ||
187 | static int | |
fba45db2 | 188 | vx_remove_breakpoint (int addr) |
c906108c SS |
189 | { |
190 | return net_break (addr, VX_BREAK_DELETE); | |
191 | } | |
192 | ||
193 | /* Start an inferior process and sets inferior_pid to its pid. | |
194 | EXEC_FILE is the file to run. | |
195 | ALLARGS is a string containing the arguments to the program. | |
196 | ENV is the environment vector to pass. | |
197 | Returns process id. Errors reported with error(). | |
198 | On VxWorks, we ignore exec_file. */ | |
c5aa993b | 199 | |
c906108c | 200 | static void |
fba45db2 | 201 | vx_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
202 | { |
203 | enum clnt_stat status; | |
204 | arg_array passArgs; | |
205 | TASK_START taskStart; | |
206 | ||
207 | memset ((char *) &passArgs, '\0', sizeof (passArgs)); | |
208 | memset ((char *) &taskStart, '\0', sizeof (taskStart)); | |
209 | ||
210 | /* parse arguments, put them in passArgs */ | |
211 | ||
212 | parse_args (args, &passArgs); | |
213 | ||
214 | if (passArgs.arg_array_len == 0) | |
215 | error ("You must specify a function name to run, and arguments if any"); | |
216 | ||
217 | status = net_clnt_call (PROCESS_START, xdr_arg_array, &passArgs, | |
218 | xdr_TASK_START, &taskStart); | |
219 | ||
220 | if ((status != RPC_SUCCESS) || (taskStart.status == -1)) | |
221 | error ("Can't create process on remote target machine"); | |
222 | ||
223 | /* Save the name of the running function */ | |
224 | vx_running = savestring (passArgs.arg_array_val[0], | |
225 | strlen (passArgs.arg_array_val[0])); | |
226 | ||
227 | push_target (&vx_run_ops); | |
228 | inferior_pid = taskStart.pid; | |
229 | ||
230 | /* We will get a trace trap after one instruction. | |
231 | Insert breakpoints and continue. */ | |
232 | ||
233 | init_wait_for_inferior (); | |
234 | ||
235 | /* Set up the "saved terminal modes" of the inferior | |
236 | based on what modes we are starting it with. */ | |
237 | target_terminal_init (); | |
238 | ||
239 | /* Install inferior's terminal modes. */ | |
240 | target_terminal_inferior (); | |
241 | ||
242 | stop_soon_quietly = 1; | |
243 | wait_for_inferior (); /* Get the task spawn event */ | |
244 | stop_soon_quietly = 0; | |
245 | ||
246 | /* insert_step_breakpoint (); FIXME, do we need this? */ | |
247 | proceed (-1, TARGET_SIGNAL_DEFAULT, 0); | |
248 | } | |
249 | ||
250 | /* Fill ARGSTRUCT in argc/argv form with the arguments from the | |
251 | argument string ARGSTRING. */ | |
252 | ||
253 | static void | |
fba45db2 | 254 | parse_args (register char *arg_string, arg_array *arg_struct) |
c906108c SS |
255 | { |
256 | register int arg_count = 0; /* number of arguments */ | |
257 | register int arg_index = 0; | |
258 | register char *p0; | |
c5aa993b | 259 | |
c906108c | 260 | memset ((char *) arg_struct, '\0', sizeof (arg_array)); |
c5aa993b | 261 | |
c906108c SS |
262 | /* first count how many arguments there are */ |
263 | ||
264 | p0 = arg_string; | |
265 | while (*p0 != '\0') | |
266 | { | |
267 | if (*(p0 = skip_white_space (p0)) == '\0') | |
268 | break; | |
269 | p0 = find_white_space (p0); | |
270 | arg_count++; | |
271 | } | |
272 | ||
273 | arg_struct->arg_array_len = arg_count; | |
274 | arg_struct->arg_array_val = (char **) xmalloc ((arg_count + 1) | |
275 | * sizeof (char *)); | |
276 | ||
277 | /* now copy argument strings into arg_struct. */ | |
278 | ||
279 | while (*(arg_string = skip_white_space (arg_string))) | |
280 | { | |
281 | p0 = find_white_space (arg_string); | |
282 | arg_struct->arg_array_val[arg_index++] = savestring (arg_string, | |
283 | p0 - arg_string); | |
284 | arg_string = p0; | |
285 | } | |
286 | ||
287 | arg_struct->arg_array_val[arg_count] = NULL; | |
288 | } | |
289 | ||
290 | /* Advance a string pointer across whitespace and return a pointer | |
291 | to the first non-white character. */ | |
292 | ||
293 | static char * | |
fba45db2 | 294 | skip_white_space (register char *p) |
c906108c SS |
295 | { |
296 | while (*p == ' ' || *p == '\t') | |
297 | p++; | |
298 | return p; | |
299 | } | |
c5aa993b | 300 | |
c906108c SS |
301 | /* Search for the first unquoted whitespace character in a string. |
302 | Returns a pointer to the character, or to the null terminator | |
303 | if no whitespace is found. */ | |
304 | ||
305 | static char * | |
fba45db2 | 306 | find_white_space (register char *p) |
c906108c SS |
307 | { |
308 | register int c; | |
309 | ||
310 | while ((c = *p) != ' ' && c != '\t' && c) | |
311 | { | |
312 | if (c == '\'' || c == '"') | |
313 | { | |
314 | while (*++p != c && *p) | |
315 | { | |
316 | if (*p == '\\') | |
317 | p++; | |
318 | } | |
319 | if (!*p) | |
320 | break; | |
321 | } | |
322 | p++; | |
323 | } | |
324 | return p; | |
325 | } | |
c5aa993b | 326 | |
c906108c SS |
327 | /* Poll the VxWorks target system for an event related |
328 | to the debugged task. | |
329 | Returns -1 if remote wait failed, task status otherwise. */ | |
330 | ||
331 | static int | |
fba45db2 | 332 | net_wait (RDB_EVENT *pEvent) |
c906108c | 333 | { |
c5aa993b JM |
334 | int pid; |
335 | enum clnt_stat status; | |
c906108c | 336 | |
c5aa993b | 337 | memset ((char *) pEvent, '\0', sizeof (RDB_EVENT)); |
c906108c | 338 | |
c5aa993b JM |
339 | pid = inferior_pid; |
340 | status = net_clnt_call (PROCESS_WAIT, xdr_int, &pid, xdr_RDB_EVENT, | |
341 | pEvent); | |
342 | ||
343 | /* return (status == RPC_SUCCESS)? pEvent->status: -1; */ | |
344 | if (status == RPC_SUCCESS) | |
345 | return ((pEvent->status) ? 1 : 0); | |
346 | else if (status == RPC_TIMEDOUT) | |
347 | return (1); | |
348 | else | |
349 | return (-1); | |
c906108c | 350 | } |
c5aa993b | 351 | |
c906108c SS |
352 | /* Suspend the remote task. |
353 | Returns -1 if suspend fails on target system, 0 otherwise. */ | |
354 | ||
355 | static int | |
fba45db2 | 356 | net_quit (void) |
c906108c SS |
357 | { |
358 | int pid; | |
359 | int quit_status; | |
360 | enum clnt_stat status; | |
361 | ||
362 | quit_status = 0; | |
363 | ||
364 | /* don't let rdbTask suspend itself by passing a pid of 0 */ | |
365 | ||
366 | if ((pid = inferior_pid) == 0) | |
367 | return -1; | |
368 | ||
369 | status = net_clnt_call (VX_TASK_SUSPEND, xdr_int, &pid, xdr_int, | |
370 | &quit_status); | |
371 | ||
c5aa993b | 372 | return (status == RPC_SUCCESS) ? quit_status : -1; |
c906108c SS |
373 | } |
374 | ||
375 | /* Read a register or registers from the remote system. */ | |
376 | ||
377 | void | |
fba45db2 | 378 | net_read_registers (char *reg_buf, int len, u_long procnum) |
c906108c SS |
379 | { |
380 | int status; | |
381 | Rptrace ptrace_in; | |
382 | Ptrace_return ptrace_out; | |
383 | C_bytes out_data; | |
384 | char message[100]; | |
385 | ||
386 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); | |
387 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
388 | ||
389 | /* Initialize RPC input argument structure. */ | |
390 | ||
391 | ptrace_in.pid = inferior_pid; | |
392 | ptrace_in.info.ttype = NOINFO; | |
393 | ||
394 | /* Initialize RPC return value structure. */ | |
395 | ||
396 | out_data.bytes = reg_buf; | |
397 | out_data.len = len; | |
c5aa993b | 398 | ptrace_out.info.more_data = (caddr_t) & out_data; |
c906108c SS |
399 | |
400 | /* Call RPC; take an error exit if appropriate. */ | |
401 | ||
402 | status = net_ptrace_clnt_call (procnum, &ptrace_in, &ptrace_out); | |
403 | if (status) | |
404 | error (rpcerr); | |
405 | if (ptrace_out.status == -1) | |
406 | { | |
407 | errno = ptrace_out.errno_num; | |
408 | sprintf (message, "reading %s registers", (procnum == PTRACE_GETREGS) | |
c5aa993b JM |
409 | ? "general-purpose" |
410 | : "floating-point"); | |
c906108c SS |
411 | perror_with_name (message); |
412 | } | |
413 | } | |
414 | ||
415 | /* Write register values to a VxWorks target. REG_BUF points to a buffer | |
416 | containing the raw register values, LEN is the length of REG_BUF in | |
417 | bytes, and PROCNUM is the RPC procedure number (PTRACE_SETREGS or | |
418 | PTRACE_SETFPREGS). An error exit is taken if the RPC call fails or | |
419 | if an error status is returned by the remote debug server. This is | |
420 | a utility routine used by vx_write_register (). */ | |
421 | ||
422 | void | |
fba45db2 | 423 | net_write_registers (char *reg_buf, int len, u_long procnum) |
c906108c SS |
424 | { |
425 | int status; | |
426 | Rptrace ptrace_in; | |
427 | Ptrace_return ptrace_out; | |
428 | C_bytes in_data; | |
429 | char message[100]; | |
430 | ||
431 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); | |
432 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
433 | ||
434 | /* Initialize RPC input argument structure. */ | |
435 | ||
436 | in_data.bytes = reg_buf; | |
437 | in_data.len = len; | |
438 | ||
439 | ptrace_in.pid = inferior_pid; | |
440 | ptrace_in.info.ttype = DATA; | |
c5aa993b | 441 | ptrace_in.info.more_data = (caddr_t) & in_data; |
c906108c SS |
442 | |
443 | /* Call RPC; take an error exit if appropriate. */ | |
444 | ||
445 | status = net_ptrace_clnt_call (procnum, &ptrace_in, &ptrace_out); | |
446 | if (status) | |
447 | error (rpcerr); | |
448 | if (ptrace_out.status == -1) | |
449 | { | |
450 | errno = ptrace_out.errno_num; | |
451 | sprintf (message, "writing %s registers", (procnum == PTRACE_SETREGS) | |
c5aa993b JM |
452 | ? "general-purpose" |
453 | : "floating-point"); | |
c906108c SS |
454 | perror_with_name (message); |
455 | } | |
456 | } | |
457 | ||
458 | /* Prepare to store registers. Since we will store all of them, | |
459 | read out their current values now. */ | |
460 | ||
461 | static void | |
fba45db2 | 462 | vx_prepare_to_store (void) |
c906108c SS |
463 | { |
464 | /* Fetch all registers, if any of them are not yet fetched. */ | |
465 | read_register_bytes (0, NULL, REGISTER_BYTES); | |
466 | } | |
467 | ||
468 | /* Copy LEN bytes to or from remote inferior's memory starting at MEMADDR | |
469 | to debugger memory starting at MYADDR. WRITE is true if writing to the | |
832c69cf | 470 | inferior. TARGET is unused. |
c906108c SS |
471 | Result is the number of bytes written or read (zero if error). The |
472 | protocol allows us to return a negative count, indicating that we can't | |
473 | handle the current address but can handle one N bytes further, but | |
474 | vxworks doesn't give us that information. */ | |
475 | ||
476 | static int | |
832c69cf | 477 | vx_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 C |
478 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, |
479 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c SS |
480 | { |
481 | int status; | |
482 | Rptrace ptrace_in; | |
483 | Ptrace_return ptrace_out; | |
484 | C_bytes data; | |
485 | enum ptracereq request; | |
486 | int nleft, nxfer; | |
487 | ||
488 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); | |
489 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
490 | ||
c5aa993b | 491 | ptrace_in.pid = inferior_pid; /* XXX pid unnecessary for READDATA */ |
c906108c | 492 | ptrace_in.addr = (int) memaddr; /* Where from */ |
c5aa993b | 493 | ptrace_in.data = len; /* How many bytes */ |
c906108c SS |
494 | |
495 | if (write) | |
496 | { | |
c5aa993b JM |
497 | ptrace_in.info.ttype = DATA; |
498 | ptrace_in.info.more_data = (caddr_t) & data; | |
c906108c SS |
499 | |
500 | data.bytes = (caddr_t) myaddr; /* Where from */ | |
c5aa993b | 501 | data.len = len; /* How many bytes (again, for XDR) */ |
c906108c SS |
502 | request = PTRACE_WRITEDATA; |
503 | } | |
504 | else | |
505 | { | |
c5aa993b | 506 | ptrace_out.info.more_data = (caddr_t) & data; |
c906108c SS |
507 | request = PTRACE_READDATA; |
508 | } | |
509 | /* Loop until the entire request has been satisfied, transferring | |
510 | at most VX_MEMXFER_MAX bytes per iteration. Break from the loop | |
511 | if an error status is returned by the remote debug server. */ | |
512 | ||
513 | nleft = len; | |
514 | status = 0; | |
515 | ||
516 | while (nleft > 0 && status == 0) | |
517 | { | |
518 | nxfer = min (nleft, VX_MEMXFER_MAX); | |
519 | ||
520 | ptrace_in.addr = (int) memaddr; | |
521 | ptrace_in.data = nxfer; | |
522 | data.bytes = (caddr_t) myaddr; | |
523 | data.len = nxfer; | |
524 | ||
525 | /* Request a block from the remote debug server; if RPC fails, | |
526 | report an error and return to debugger command level. */ | |
527 | ||
528 | if (net_ptrace_clnt_call (request, &ptrace_in, &ptrace_out)) | |
c5aa993b | 529 | error (rpcerr); |
c906108c SS |
530 | |
531 | status = ptrace_out.status; | |
532 | if (status == 0) | |
c5aa993b JM |
533 | { |
534 | memaddr += nxfer; | |
535 | myaddr += nxfer; | |
536 | nleft -= nxfer; | |
537 | } | |
c906108c | 538 | else |
c5aa993b JM |
539 | { |
540 | /* A target-side error has ocurred. Set errno to the error | |
541 | code chosen by the target so that a later perror () will | |
542 | say something meaningful. */ | |
c906108c | 543 | |
c5aa993b JM |
544 | errno = ptrace_out.errno_num; |
545 | } | |
c906108c SS |
546 | } |
547 | ||
548 | /* Return the number of bytes transferred. */ | |
549 | ||
550 | return (len - nleft); | |
551 | } | |
552 | ||
553 | static void | |
fba45db2 | 554 | vx_files_info (void) |
c906108c SS |
555 | { |
556 | printf_unfiltered ("\tAttached to host `%s'", vx_host); | |
c5aa993b | 557 | printf_unfiltered (", which has %sfloating point", target_has_fp ? "" : "no "); |
c906108c SS |
558 | printf_unfiltered (".\n"); |
559 | } | |
560 | ||
561 | static void | |
fba45db2 | 562 | vx_run_files_info (void) |
c906108c | 563 | { |
c5aa993b | 564 | printf_unfiltered ("\tRunning %s VxWorks process %s", |
c906108c SS |
565 | vx_running ? "child" : "attached", |
566 | local_hex_string (inferior_pid)); | |
567 | if (vx_running) | |
568 | printf_unfiltered (", function `%s'", vx_running); | |
c5aa993b | 569 | printf_unfiltered (".\n"); |
c906108c SS |
570 | } |
571 | ||
572 | static void | |
fba45db2 | 573 | vx_resume (int pid, int step, enum target_signal siggnal) |
c906108c SS |
574 | { |
575 | int status; | |
576 | Rptrace ptrace_in; | |
577 | Ptrace_return ptrace_out; | |
578 | CORE_ADDR cont_addr; | |
579 | ||
580 | if (pid == -1) | |
581 | pid = inferior_pid; | |
582 | ||
583 | if (siggnal != 0 && siggnal != stop_signal) | |
584 | error ("Cannot send signals to VxWorks processes"); | |
585 | ||
586 | /* Set CONT_ADDR to the address at which we are continuing, | |
587 | or to 1 if we are continuing from where the program stopped. | |
588 | This conforms to traditional ptrace () usage, but at the same | |
589 | time has special meaning for the VxWorks remote debug server. | |
590 | If the address is not 1, the server knows that the target | |
591 | program is jumping to a new address, which requires special | |
592 | handling if there is a breakpoint at the new address. */ | |
593 | ||
594 | cont_addr = read_register (PC_REGNUM); | |
595 | if (cont_addr == stop_pc) | |
596 | cont_addr = 1; | |
597 | ||
598 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); | |
599 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
600 | ||
601 | ptrace_in.pid = pid; | |
c5aa993b | 602 | ptrace_in.addr = cont_addr; /* Target side insists on this, or it panics. */ |
c906108c SS |
603 | |
604 | if (step) | |
c5aa993b | 605 | status = net_step (); |
c906108c SS |
606 | else |
607 | status = net_ptrace_clnt_call (PTRACE_CONT, &ptrace_in, &ptrace_out); | |
608 | ||
609 | if (status) | |
610 | error (rpcerr); | |
611 | if (ptrace_out.status == -1) | |
612 | { | |
613 | errno = ptrace_out.errno_num; | |
614 | perror_with_name ("Resuming remote process"); | |
615 | } | |
616 | } | |
617 | ||
618 | static void | |
fba45db2 | 619 | vx_mourn_inferior (void) |
c906108c SS |
620 | { |
621 | pop_target (); /* Pop back to no-child state */ | |
622 | generic_mourn_inferior (); | |
623 | } | |
c906108c | 624 | \f |
c5aa993b | 625 | |
a14ed312 | 626 | static void vx_add_symbols (char *, int, CORE_ADDR, CORE_ADDR, CORE_ADDR); |
c906108c | 627 | |
c5aa993b JM |
628 | struct find_sect_args |
629 | { | |
630 | CORE_ADDR text_start; | |
631 | CORE_ADDR data_start; | |
632 | CORE_ADDR bss_start; | |
633 | }; | |
c906108c | 634 | |
a14ed312 | 635 | static void find_sect (bfd *, asection *, void *); |
c906108c SS |
636 | |
637 | static void | |
fba45db2 | 638 | find_sect (bfd *abfd, asection *sect, PTR obj) |
c906108c | 639 | { |
c5aa993b | 640 | struct find_sect_args *args = (struct find_sect_args *) obj; |
c906108c SS |
641 | |
642 | if (bfd_get_section_flags (abfd, sect) & (SEC_CODE & SEC_READONLY)) | |
643 | args->text_start = bfd_get_section_vma (abfd, sect); | |
644 | else if (bfd_get_section_flags (abfd, sect) & SEC_ALLOC) | |
645 | { | |
646 | if (bfd_get_section_flags (abfd, sect) & SEC_LOAD) | |
647 | { | |
648 | /* Exclude .ctor and .dtor sections which have SEC_CODE set but not | |
649 | SEC_DATA. */ | |
650 | if (bfd_get_section_flags (abfd, sect) & SEC_DATA) | |
651 | args->data_start = bfd_get_section_vma (abfd, sect); | |
652 | } | |
653 | else | |
654 | args->bss_start = bfd_get_section_vma (abfd, sect); | |
655 | } | |
656 | } | |
657 | ||
658 | static void | |
fba45db2 KB |
659 | vx_add_symbols (char *name, int from_tty, CORE_ADDR text_addr, |
660 | CORE_ADDR data_addr, CORE_ADDR bss_addr) | |
c906108c SS |
661 | { |
662 | struct section_offsets *offs; | |
663 | struct objfile *objfile; | |
664 | struct find_sect_args ss; | |
665 | ||
666 | /* It might be nice to suppress the breakpoint_re_set which happens here | |
667 | because we are going to do one again after the objfile_relocate. */ | |
2df3850c | 668 | objfile = symbol_file_add (name, from_tty, NULL, 0, 0); |
c906108c SS |
669 | |
670 | /* This is a (slightly cheesy) way of superceding the old symbols. A less | |
671 | cheesy way would be to find the objfile with the same name and | |
672 | free_objfile it. */ | |
673 | objfile_to_front (objfile); | |
674 | ||
d4f3574e SS |
675 | offs = (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS); |
676 | memcpy (offs, objfile->section_offsets, SIZEOF_SECTION_OFFSETS); | |
c906108c SS |
677 | |
678 | ss.text_start = 0; | |
679 | ss.data_start = 0; | |
680 | ss.bss_start = 0; | |
681 | bfd_map_over_sections (objfile->obfd, find_sect, &ss); | |
682 | ||
683 | /* Both COFF and b.out frontends use these SECT_OFF_* values. */ | |
f0a58b0b EZ |
684 | offs->offsets[SECT_OFF_TEXT (objfile)] = text_addr - ss.text_start; |
685 | offs->offsets[SECT_OFF_DATA (objfile)] = data_addr - ss.data_start; | |
686 | offs->offsets[SECT_OFF_BSS (objfile)] = bss_addr - ss.bss_start; | |
c906108c SS |
687 | objfile_relocate (objfile, offs); |
688 | } | |
689 | ||
690 | /* This function allows the addition of incrementally linked object files. */ | |
691 | ||
692 | static void | |
fba45db2 | 693 | vx_load_command (char *arg_string, int from_tty) |
c906108c SS |
694 | { |
695 | CORE_ADDR text_addr; | |
696 | CORE_ADDR data_addr; | |
697 | CORE_ADDR bss_addr; | |
698 | ||
699 | if (arg_string == 0) | |
700 | error ("The load command takes a file name"); | |
701 | ||
702 | arg_string = tilde_expand (arg_string); | |
b8c9b27d | 703 | make_cleanup (xfree, arg_string); |
c906108c SS |
704 | |
705 | dont_repeat (); | |
706 | ||
707 | /* Refuse to load the module if a debugged task is running. Doing so | |
708 | can have a number of unpleasant consequences to the running task. */ | |
709 | ||
710 | if (inferior_pid != 0 && target_has_execution) | |
711 | { | |
712 | if (query ("You may not load a module while the target task is running.\n\ | |
713 | Kill the target task? ")) | |
c5aa993b | 714 | target_kill (); |
c906108c | 715 | else |
8e1a459b | 716 | error ("Load canceled."); |
c906108c SS |
717 | } |
718 | ||
719 | QUIT; | |
720 | immediate_quit++; | |
721 | if (net_load (arg_string, &text_addr, &data_addr, &bss_addr) == -1) | |
722 | error ("Load failed on target machine"); | |
723 | immediate_quit--; | |
724 | ||
725 | vx_add_symbols (arg_string, from_tty, text_addr, data_addr, bss_addr); | |
726 | ||
727 | /* Getting new symbols may change our opinion about what is | |
728 | frameless. */ | |
729 | reinit_frame_cache (); | |
730 | } | |
731 | ||
732 | /* Single step the target program at the source or machine level. | |
733 | Takes an error exit if rpc fails. | |
734 | Returns -1 if remote single-step operation fails, else 0. */ | |
735 | ||
736 | static int | |
fba45db2 | 737 | net_step (void) |
c906108c SS |
738 | { |
739 | enum clnt_stat status; | |
740 | int step_status; | |
741 | SOURCE_STEP source_step; | |
742 | ||
743 | source_step.taskId = inferior_pid; | |
744 | ||
745 | if (step_range_end) | |
746 | { | |
747 | source_step.startAddr = step_range_start; | |
748 | source_step.endAddr = step_range_end; | |
749 | } | |
750 | else | |
751 | { | |
752 | source_step.startAddr = 0; | |
753 | source_step.endAddr = 0; | |
754 | } | |
755 | ||
756 | status = net_clnt_call (VX_SOURCE_STEP, xdr_SOURCE_STEP, &source_step, | |
757 | xdr_int, &step_status); | |
758 | ||
759 | if (status == RPC_SUCCESS) | |
760 | return step_status; | |
c5aa993b | 761 | else |
c906108c SS |
762 | error (rpcerr); |
763 | } | |
764 | ||
765 | /* Emulate ptrace using RPC calls to the VxWorks target system. | |
766 | Returns nonzero (-1) if RPC status to VxWorks is bad, 0 otherwise. */ | |
767 | ||
768 | static int | |
fba45db2 KB |
769 | net_ptrace_clnt_call (enum ptracereq request, Rptrace *pPtraceIn, |
770 | Ptrace_return *pPtraceOut) | |
c906108c SS |
771 | { |
772 | enum clnt_stat status; | |
773 | ||
774 | status = net_clnt_call (request, xdr_rptrace, pPtraceIn, xdr_ptrace_return, | |
775 | pPtraceOut); | |
776 | ||
777 | if (status != RPC_SUCCESS) | |
c5aa993b | 778 | return -1; |
c906108c SS |
779 | |
780 | return 0; | |
781 | } | |
782 | ||
783 | /* Query the target for the name of the file from which VxWorks was | |
784 | booted. pBootFile is the address of a pointer to the buffer to | |
785 | receive the file name; if the pointer pointed to by pBootFile is | |
786 | NULL, memory for the buffer will be allocated by XDR. | |
787 | Returns -1 if rpc failed, 0 otherwise. */ | |
788 | ||
789 | static int | |
fba45db2 | 790 | net_get_boot_file (char **pBootFile) |
c906108c SS |
791 | { |
792 | enum clnt_stat status; | |
793 | ||
794 | status = net_clnt_call (VX_BOOT_FILE_INQ, xdr_void, (char *) 0, | |
795 | xdr_wrapstring, pBootFile); | |
796 | return (status == RPC_SUCCESS) ? 0 : -1; | |
797 | } | |
798 | ||
832c69cf KB |
799 | /* Fetch a list of loaded object modules from the VxWorks target |
800 | and store in PLOADTABLE. | |
c906108c SS |
801 | Returns -1 if rpc failed, 0 otherwise |
802 | There's no way to check if the returned loadTable is correct. | |
803 | VxWorks doesn't check it. */ | |
804 | ||
805 | static int | |
832c69cf | 806 | net_get_symbols (ldtabl *pLoadTable) |
c906108c SS |
807 | { |
808 | enum clnt_stat status; | |
809 | ||
810 | memset ((char *) pLoadTable, '\0', sizeof (struct ldtabl)); | |
811 | ||
812 | status = net_clnt_call (VX_STATE_INQ, xdr_void, 0, xdr_ldtabl, pLoadTable); | |
813 | return (status == RPC_SUCCESS) ? 0 : -1; | |
814 | } | |
815 | ||
816 | /* Look up a symbol in the VxWorks target's symbol table. | |
817 | Returns status of symbol read on target side (0=success, -1=fail) | |
818 | Returns -1 and complain()s if rpc fails. */ | |
819 | ||
820 | struct complaint cant_contact_target = | |
c5aa993b | 821 | {"Lost contact with VxWorks target", 0, 0}; |
c906108c SS |
822 | |
823 | static int | |
fba45db2 KB |
824 | vx_lookup_symbol (char *name, /* symbol name */ |
825 | CORE_ADDR *pAddr) | |
c906108c SS |
826 | { |
827 | enum clnt_stat status; | |
828 | SYMBOL_ADDR symbolAddr; | |
829 | ||
830 | *pAddr = 0; | |
831 | memset ((char *) &symbolAddr, '\0', sizeof (symbolAddr)); | |
832 | ||
833 | status = net_clnt_call (VX_SYMBOL_INQ, xdr_wrapstring, &name, | |
834 | xdr_SYMBOL_ADDR, &symbolAddr); | |
835 | if (status != RPC_SUCCESS) | |
836 | { | |
837 | complain (&cant_contact_target); | |
838 | return -1; | |
839 | } | |
840 | ||
841 | *pAddr = symbolAddr.addr; | |
842 | return symbolAddr.status; | |
843 | } | |
844 | ||
845 | /* Check to see if the VxWorks target has a floating point coprocessor. | |
846 | Returns 1 if target has floating point processor, 0 otherwise. | |
847 | Calls error() if rpc fails. */ | |
848 | ||
849 | static int | |
fba45db2 | 850 | net_check_for_fp (void) |
c906108c SS |
851 | { |
852 | enum clnt_stat status; | |
c5aa993b | 853 | bool_t fp = 0; /* true if fp processor is present on target board */ |
c906108c SS |
854 | |
855 | status = net_clnt_call (VX_FP_INQUIRE, xdr_void, 0, xdr_bool, &fp); | |
856 | if (status != RPC_SUCCESS) | |
857 | error (rpcerr); | |
858 | ||
c5aa993b | 859 | return (int) fp; |
c906108c SS |
860 | } |
861 | ||
862 | /* Establish an RPC connection with the VxWorks target system. | |
863 | Calls error () if unable to establish connection. */ | |
864 | ||
865 | static void | |
fba45db2 | 866 | net_connect (char *host) |
c906108c SS |
867 | { |
868 | struct sockaddr_in destAddr; | |
869 | struct hostent *destHost; | |
870 | unsigned long addr; | |
871 | ||
872 | /* Get the internet address for the given host. Allow a numeric | |
873 | IP address or a hostname. */ | |
874 | ||
875 | addr = inet_addr (host); | |
876 | if (addr == -1) | |
877 | { | |
878 | destHost = (struct hostent *) gethostbyname (host); | |
879 | if (destHost == NULL) | |
880 | /* FIXME: Probably should include hostname here in quotes. | |
881 | For example if the user types "target vxworks vx960 " it should | |
882 | say "Invalid host `vx960 '." not just "Invalid hostname". */ | |
883 | error ("Invalid hostname. Couldn't find remote host address."); | |
c5aa993b | 884 | addr = *(unsigned long *) destHost->h_addr; |
c906108c SS |
885 | } |
886 | ||
887 | memset (&destAddr, '\0', sizeof (destAddr)); | |
888 | ||
889 | destAddr.sin_addr.s_addr = addr; | |
c5aa993b JM |
890 | destAddr.sin_family = AF_INET; |
891 | destAddr.sin_port = 0; /* set to actual port that remote | |
892 | ptrace is listening on. */ | |
c906108c SS |
893 | |
894 | /* Create a tcp client transport on which to issue | |
895 | calls to the remote ptrace server. */ | |
896 | ||
897 | ptraceSock = RPC_ANYSOCK; | |
898 | pClient = clnttcp_create (&destAddr, RDBPROG, RDBVERS, &ptraceSock, 0, 0); | |
899 | /* FIXME, here is where we deal with different version numbers of the | |
900 | proto */ | |
901 | ||
902 | if (pClient == NULL) | |
903 | { | |
904 | clnt_pcreateerror ("\tnet_connect"); | |
905 | error ("Couldn't connect to remote target."); | |
906 | } | |
907 | } | |
908 | \f | |
909 | /* Sleep for the specified number of milliseconds | |
910 | * (assumed to be less than 1000). | |
911 | * If select () is interrupted, returns immediately; | |
912 | * takes an error exit if select () fails for some other reason. | |
913 | */ | |
914 | ||
915 | static void | |
fba45db2 | 916 | sleep_ms (long ms) |
c906108c SS |
917 | { |
918 | struct timeval select_timeout; | |
919 | int status; | |
920 | ||
921 | select_timeout.tv_sec = 0; | |
922 | select_timeout.tv_usec = ms * 1000; | |
923 | ||
924 | status = select (0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0, | |
925 | &select_timeout); | |
926 | ||
927 | if (status < 0 && errno != EINTR) | |
928 | perror_with_name ("select"); | |
929 | } | |
930 | ||
931 | static int | |
fba45db2 | 932 | vx_wait (int pid_to_wait_for, struct target_waitstatus *status) |
c906108c SS |
933 | { |
934 | register int pid; | |
935 | RDB_EVENT rdbEvent; | |
936 | int quit_failed; | |
937 | ||
938 | do | |
939 | { | |
940 | /* If CTRL-C is hit during this loop, | |
c5aa993b | 941 | suspend the inferior process. */ |
c906108c SS |
942 | |
943 | quit_failed = 0; | |
944 | if (quit_flag) | |
945 | { | |
946 | quit_failed = (net_quit () == -1); | |
947 | quit_flag = 0; | |
948 | } | |
949 | ||
950 | /* If a net_quit () or net_wait () call has failed, | |
c5aa993b JM |
951 | allow the user to break the connection with the target. |
952 | We can't simply error () out of this loop, since the | |
953 | data structures representing the state of the inferior | |
954 | are in an inconsistent state. */ | |
c906108c SS |
955 | |
956 | if (quit_failed || net_wait (&rdbEvent) == -1) | |
957 | { | |
958 | terminal_ours (); | |
959 | if (query ("Can't %s. Disconnect from target system? ", | |
960 | (quit_failed) ? "suspend remote task" | |
c5aa993b | 961 | : "get status of remote task")) |
c906108c | 962 | { |
c5aa993b | 963 | target_mourn_inferior (); |
c906108c SS |
964 | error ("Use the \"target\" command to reconnect."); |
965 | } | |
966 | else | |
967 | { | |
968 | terminal_inferior (); | |
969 | continue; | |
970 | } | |
971 | } | |
c5aa993b | 972 | |
c906108c SS |
973 | pid = rdbEvent.taskId; |
974 | if (pid == 0) | |
975 | { | |
976 | sleep_ms (200); /* FIXME Don't kill the network too badly */ | |
977 | } | |
978 | else if (pid != inferior_pid) | |
8e65ff28 AC |
979 | internal_error (__FILE__, __LINE__, |
980 | "Bad pid for debugged task: %s\n", | |
96baa820 | 981 | local_hex_string ((unsigned long) pid)); |
c5aa993b JM |
982 | } |
983 | while (pid == 0); | |
c906108c SS |
984 | |
985 | /* The mostly likely kind. */ | |
986 | status->kind = TARGET_WAITKIND_STOPPED; | |
987 | ||
988 | switch (rdbEvent.eventType) | |
989 | { | |
990 | case EVENT_EXIT: | |
991 | status->kind = TARGET_WAITKIND_EXITED; | |
992 | /* FIXME is it possible to distinguish between a | |
c5aa993b | 993 | normal vs abnormal exit in VxWorks? */ |
c906108c SS |
994 | status->value.integer = 0; |
995 | break; | |
996 | ||
997 | case EVENT_START: | |
998 | /* Task was just started. */ | |
999 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1000 | break; | |
1001 | ||
1002 | case EVENT_STOP: | |
1003 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1004 | /* XXX was it stopped by a signal? act accordingly */ | |
1005 | break; | |
1006 | ||
1007 | case EVENT_BREAK: /* Breakpoint was hit. */ | |
1008 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1009 | break; | |
1010 | ||
c5aa993b | 1011 | case EVENT_SUSPEND: /* Task was suspended, probably by ^C. */ |
c906108c SS |
1012 | status->value.sig = TARGET_SIGNAL_INT; |
1013 | break; | |
1014 | ||
c5aa993b | 1015 | case EVENT_BUS_ERR: /* Task made evil nasty reference. */ |
c906108c SS |
1016 | status->value.sig = TARGET_SIGNAL_BUS; |
1017 | break; | |
1018 | ||
1019 | case EVENT_ZERO_DIV: /* Division by zero */ | |
1020 | status->value.sig = TARGET_SIGNAL_FPE; | |
1021 | break; | |
1022 | ||
1023 | case EVENT_SIGNAL: | |
1024 | #ifdef I80960 | |
1025 | status->value.sig = i960_fault_to_signal (rdbEvent.sigType); | |
1026 | #else | |
1027 | /* Back in the old days, before enum target_signal, this code used | |
c5aa993b JM |
1028 | to add NSIG to the signal number and claim that PRINT_RANDOM_SIGNAL |
1029 | would take care of it. But PRINT_RANDOM_SIGNAL has never been | |
1030 | defined except on the i960, so I don't really know what we are | |
1031 | supposed to do on other architectures. */ | |
c906108c SS |
1032 | status->value.sig = TARGET_SIGNAL_UNKNOWN; |
1033 | #endif | |
1034 | break; | |
c5aa993b | 1035 | } /* switch */ |
c906108c SS |
1036 | return pid; |
1037 | } | |
1038 | \f | |
1039 | static int | |
fba45db2 | 1040 | symbol_stub (char *arg) |
c906108c | 1041 | { |
1adeb98a | 1042 | symbol_file_add_main (arg, 0); |
c906108c SS |
1043 | return 1; |
1044 | } | |
1045 | ||
1046 | static int | |
fba45db2 | 1047 | add_symbol_stub (char *arg) |
c906108c | 1048 | { |
c5aa993b | 1049 | struct ldfile *pLoadFile = (struct ldfile *) arg; |
c906108c | 1050 | |
c5aa993b | 1051 | printf_unfiltered ("\t%s: ", pLoadFile->name); |
c906108c SS |
1052 | vx_add_symbols (pLoadFile->name, 0, pLoadFile->txt_addr, |
1053 | pLoadFile->data_addr, pLoadFile->bss_addr); | |
1054 | printf_unfiltered ("ok\n"); | |
1055 | return 1; | |
1056 | } | |
1057 | /* Target command for VxWorks target systems. | |
1058 | ||
1059 | Used in vxgdb. Takes the name of a remote target machine | |
1060 | running vxWorks and connects to it to initialize remote network | |
1061 | debugging. */ | |
1062 | ||
1063 | static void | |
fba45db2 | 1064 | vx_open (char *args, int from_tty) |
c906108c SS |
1065 | { |
1066 | extern int close (); | |
1067 | char *bootFile; | |
1068 | extern char *source_path; | |
1069 | struct ldtabl loadTable; | |
1070 | struct ldfile *pLoadFile; | |
1071 | int i; | |
1072 | extern CLIENT *pClient; | |
1073 | int symbols_added = 0; | |
1074 | ||
1075 | if (!args) | |
1076 | error_no_arg ("target machine name"); | |
1077 | ||
1078 | target_preopen (from_tty); | |
c5aa993b | 1079 | |
c906108c SS |
1080 | unpush_target (&vx_ops); |
1081 | printf_unfiltered ("Attaching remote machine across net...\n"); | |
1082 | gdb_flush (gdb_stdout); | |
1083 | ||
1084 | /* Allow the user to kill the connect attempt by typing ^C. | |
1085 | Wait until the call to target_has_fp () completes before | |
1086 | disallowing an immediate quit, since even if net_connect () | |
1087 | is successful, the remote debug server might be hung. */ | |
1088 | ||
1089 | immediate_quit++; | |
1090 | ||
1091 | net_connect (args); | |
1092 | target_has_fp = net_check_for_fp (); | |
1093 | printf_filtered ("Connected to %s.\n", args); | |
1094 | ||
1095 | immediate_quit--; | |
1096 | ||
1097 | push_target (&vx_ops); | |
1098 | ||
1099 | /* Save a copy of the target host's name. */ | |
1100 | vx_host = savestring (args, strlen (args)); | |
1101 | ||
1102 | /* Find out the name of the file from which the target was booted | |
1103 | and load its symbol table. */ | |
1104 | ||
1105 | printf_filtered ("Looking in Unix path for all loaded modules:\n"); | |
1106 | bootFile = NULL; | |
1107 | if (!net_get_boot_file (&bootFile)) | |
1108 | { | |
1109 | if (*bootFile) | |
1110 | { | |
1111 | printf_filtered ("\t%s: ", bootFile); | |
1112 | /* This assumes that the kernel is never relocated. Hope that is an | |
1113 | accurate assumption. */ | |
1114 | if (catch_errors | |
1115 | (symbol_stub, | |
1116 | bootFile, | |
1117 | "Error while reading symbols from boot file:\n", | |
1118 | RETURN_MASK_ALL)) | |
1119 | puts_filtered ("ok\n"); | |
1120 | } | |
1121 | else if (from_tty) | |
1122 | printf_unfiltered ("VxWorks kernel symbols not loaded.\n"); | |
1123 | } | |
1124 | else | |
1125 | error ("Can't retrieve boot file name from target machine."); | |
1126 | ||
1127 | clnt_freeres (pClient, xdr_wrapstring, &bootFile); | |
1128 | ||
1129 | if (net_get_symbols (&loadTable) != 0) | |
1130 | error ("Can't read loaded modules from target machine"); | |
1131 | ||
c5aa993b | 1132 | i = 0 - 1; |
c906108c SS |
1133 | while (++i < loadTable.tbl_size) |
1134 | { | |
c5aa993b JM |
1135 | QUIT; /* FIXME, avoids clnt_freeres below: mem leak */ |
1136 | pLoadFile = &loadTable.tbl_ent[i]; | |
c906108c | 1137 | #ifdef WRS_ORIG |
c5aa993b JM |
1138 | { |
1139 | register int desc; | |
1140 | struct cleanup *old_chain; | |
1141 | char *fullname = NULL; | |
1142 | ||
1143 | desc = openp (source_path, 0, pLoadFile->name, O_RDONLY, 0, &fullname); | |
1144 | if (desc < 0) | |
1145 | perror_with_name (pLoadFile->name); | |
1146 | old_chain = make_cleanup (close, desc); | |
1147 | add_file_at_addr (fullname, desc, pLoadFile->txt_addr, pLoadFile->data_addr, | |
1148 | pLoadFile->bss_addr); | |
1149 | do_cleanups (old_chain); | |
1150 | } | |
c906108c SS |
1151 | #else |
1152 | /* FIXME: Is there something better to search than the PATH? (probably | |
c5aa993b JM |
1153 | not the source path, since source might be in different directories |
1154 | than objects. */ | |
c906108c | 1155 | |
c5aa993b | 1156 | if (catch_errors (add_symbol_stub, (char *) pLoadFile, (char *) 0, |
c906108c SS |
1157 | RETURN_MASK_ALL)) |
1158 | symbols_added = 1; | |
1159 | #endif | |
1160 | } | |
1161 | printf_filtered ("Done.\n"); | |
1162 | ||
1163 | clnt_freeres (pClient, xdr_ldtabl, &loadTable); | |
1164 | ||
1165 | /* Getting new symbols may change our opinion about what is | |
1166 | frameless. */ | |
1167 | if (symbols_added) | |
1168 | reinit_frame_cache (); | |
1169 | } | |
1170 | \f | |
1171 | /* Takes a task started up outside of gdb and ``attaches'' to it. | |
1172 | This stops it cold in its tracks and allows us to start tracing it. */ | |
1173 | ||
1174 | static void | |
fba45db2 | 1175 | vx_attach (char *args, int from_tty) |
c906108c SS |
1176 | { |
1177 | unsigned long pid; | |
1178 | char *cptr = 0; | |
1179 | Rptrace ptrace_in; | |
1180 | Ptrace_return ptrace_out; | |
1181 | int status; | |
1182 | ||
1183 | if (!args) | |
1184 | error_no_arg ("process-id to attach"); | |
1185 | ||
1186 | pid = strtoul (args, &cptr, 0); | |
1187 | if ((cptr == args) || (*cptr != '\0')) | |
1188 | error ("Invalid process-id -- give a single number in decimal or 0xhex"); | |
1189 | ||
1190 | if (from_tty) | |
1191 | printf_unfiltered ("Attaching pid %s.\n", | |
c5aa993b | 1192 | local_hex_string ((unsigned long) pid)); |
c906108c | 1193 | |
c5aa993b JM |
1194 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); |
1195 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
c906108c SS |
1196 | ptrace_in.pid = pid; |
1197 | ||
1198 | status = net_ptrace_clnt_call (PTRACE_ATTACH, &ptrace_in, &ptrace_out); | |
1199 | if (status == -1) | |
1200 | error (rpcerr); | |
1201 | if (ptrace_out.status == -1) | |
1202 | { | |
1203 | errno = ptrace_out.errno_num; | |
1204 | perror_with_name ("Attaching remote process"); | |
1205 | } | |
1206 | ||
1207 | /* It worked... */ | |
1208 | ||
1209 | inferior_pid = pid; | |
1210 | push_target (&vx_run_ops); | |
1211 | ||
1212 | if (vx_running) | |
b8c9b27d | 1213 | xfree (vx_running); |
c906108c SS |
1214 | vx_running = 0; |
1215 | } | |
1216 | ||
1217 | /* detach_command -- | |
1218 | takes a program previously attached to and detaches it. | |
1219 | The program resumes execution and will no longer stop | |
1220 | on signals, etc. We better not have left any breakpoints | |
1221 | in the program or it'll die when it hits one. For this | |
1222 | to work, it may be necessary for the process to have been | |
1223 | previously attached. It *might* work if the program was | |
1224 | started via the normal ptrace (PTRACE_TRACEME). */ | |
1225 | ||
1226 | static void | |
fba45db2 | 1227 | vx_detach (char *args, int from_tty) |
c906108c SS |
1228 | { |
1229 | Rptrace ptrace_in; | |
1230 | Ptrace_return ptrace_out; | |
1231 | int signal = 0; | |
1232 | int status; | |
1233 | ||
1234 | if (args) | |
1235 | error ("Argument given to VxWorks \"detach\"."); | |
1236 | ||
1237 | if (from_tty) | |
c5aa993b JM |
1238 | printf_unfiltered ("Detaching pid %s.\n", |
1239 | local_hex_string ((unsigned long) inferior_pid)); | |
c906108c | 1240 | |
c5aa993b | 1241 | if (args) /* FIXME, should be possible to leave suspended */ |
c906108c | 1242 | signal = atoi (args); |
c5aa993b JM |
1243 | |
1244 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); | |
1245 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
c906108c SS |
1246 | ptrace_in.pid = inferior_pid; |
1247 | ||
1248 | status = net_ptrace_clnt_call (PTRACE_DETACH, &ptrace_in, &ptrace_out); | |
1249 | if (status == -1) | |
1250 | error (rpcerr); | |
1251 | if (ptrace_out.status == -1) | |
1252 | { | |
1253 | errno = ptrace_out.errno_num; | |
1254 | perror_with_name ("Detaching VxWorks process"); | |
1255 | } | |
1256 | ||
1257 | inferior_pid = 0; | |
c5aa993b | 1258 | pop_target (); /* go back to non-executing VxWorks connection */ |
c906108c SS |
1259 | } |
1260 | ||
1261 | /* vx_kill -- takes a running task and wipes it out. */ | |
1262 | ||
1263 | static void | |
fba45db2 | 1264 | vx_kill (void) |
c906108c SS |
1265 | { |
1266 | Rptrace ptrace_in; | |
1267 | Ptrace_return ptrace_out; | |
1268 | int status; | |
1269 | ||
c5aa993b | 1270 | printf_unfiltered ("Killing pid %s.\n", local_hex_string ((unsigned long) inferior_pid)); |
c906108c | 1271 | |
c5aa993b JM |
1272 | memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in)); |
1273 | memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out)); | |
c906108c SS |
1274 | ptrace_in.pid = inferior_pid; |
1275 | ||
1276 | status = net_ptrace_clnt_call (PTRACE_KILL, &ptrace_in, &ptrace_out); | |
1277 | if (status == -1) | |
1278 | warning (rpcerr); | |
1279 | else if (ptrace_out.status == -1) | |
1280 | { | |
1281 | errno = ptrace_out.errno_num; | |
1282 | perror_with_name ("Killing VxWorks process"); | |
1283 | } | |
1284 | ||
1285 | /* If it gives good status, the process is *gone*, no events remain. | |
1286 | If the kill failed, assume the process is gone anyhow. */ | |
1287 | inferior_pid = 0; | |
c5aa993b | 1288 | pop_target (); /* go back to non-executing VxWorks connection */ |
c906108c SS |
1289 | } |
1290 | ||
1291 | /* Clean up from the VxWorks process target as it goes away. */ | |
1292 | ||
1293 | static void | |
fba45db2 | 1294 | vx_proc_close (int quitting) |
c906108c SS |
1295 | { |
1296 | inferior_pid = 0; /* No longer have a process. */ | |
1297 | if (vx_running) | |
b8c9b27d | 1298 | xfree (vx_running); |
c906108c SS |
1299 | vx_running = 0; |
1300 | } | |
1301 | \f | |
1302 | /* Make an RPC call to the VxWorks target. | |
1303 | Returns RPC status. */ | |
1304 | ||
1305 | static enum clnt_stat | |
fba45db2 KB |
1306 | net_clnt_call (enum ptracereq procNum, xdrproc_t inProc, char *in, |
1307 | xdrproc_t outProc, char *out) | |
c906108c SS |
1308 | { |
1309 | enum clnt_stat status; | |
c5aa993b | 1310 | |
c906108c SS |
1311 | status = clnt_call (pClient, procNum, inProc, in, outProc, out, rpcTimeout); |
1312 | ||
1313 | if (status != RPC_SUCCESS) | |
c5aa993b | 1314 | clnt_perrno (status); |
c906108c SS |
1315 | |
1316 | return status; | |
1317 | } | |
1318 | ||
1319 | /* Clean up before losing control. */ | |
1320 | ||
1321 | static void | |
fba45db2 | 1322 | vx_close (int quitting) |
c906108c SS |
1323 | { |
1324 | if (pClient) | |
1325 | clnt_destroy (pClient); /* The net connection */ | |
1326 | pClient = 0; | |
1327 | ||
1328 | if (vx_host) | |
b8c9b27d | 1329 | xfree (vx_host); /* The hostname */ |
c906108c SS |
1330 | vx_host = 0; |
1331 | } | |
1332 | ||
1333 | /* A vxprocess target should be started via "run" not "target". */ | |
c5aa993b | 1334 | /*ARGSUSED */ |
c906108c | 1335 | static void |
fba45db2 | 1336 | vx_proc_open (char *name, int from_tty) |
c906108c SS |
1337 | { |
1338 | error ("Use the \"run\" command to start a VxWorks process."); | |
1339 | } | |
1340 | ||
1341 | static void | |
fba45db2 | 1342 | init_vx_ops (void) |
c906108c SS |
1343 | { |
1344 | vx_ops.to_shortname = "vxworks"; | |
1345 | vx_ops.to_longname = "VxWorks target memory via RPC over TCP/IP"; | |
1346 | vx_ops.to_doc = "Use VxWorks target memory. \n\ | |
1347 | Specify the name of the machine to connect to."; | |
1348 | vx_ops.to_open = vx_open; | |
1349 | vx_ops.to_close = vx_close; | |
1350 | vx_ops.to_attach = vx_attach; | |
1351 | vx_ops.to_xfer_memory = vx_xfer_memory; | |
1352 | vx_ops.to_files_info = vx_files_info; | |
1353 | vx_ops.to_load = vx_load_command; | |
1354 | vx_ops.to_lookup_symbol = vx_lookup_symbol; | |
1355 | vx_ops.to_create_inferior = vx_create_inferior; | |
1356 | vx_ops.to_stratum = core_stratum; | |
1357 | vx_ops.to_has_all_memory = 1; | |
1358 | vx_ops.to_has_memory = 1; | |
c5aa993b | 1359 | vx_ops.to_magic = OPS_MAGIC; /* Always the last thing */ |
c906108c SS |
1360 | }; |
1361 | ||
1362 | static void | |
fba45db2 | 1363 | init_vx_run_ops (void) |
c906108c SS |
1364 | { |
1365 | vx_run_ops.to_shortname = "vxprocess"; | |
1366 | vx_run_ops.to_longname = "VxWorks process"; | |
1367 | vx_run_ops.to_doc = "VxWorks process; started by the \"run\" command."; | |
1368 | vx_run_ops.to_open = vx_proc_open; | |
1369 | vx_run_ops.to_close = vx_proc_close; | |
1370 | vx_run_ops.to_detach = vx_detach; | |
1371 | vx_run_ops.to_resume = vx_resume; | |
1372 | vx_run_ops.to_wait = vx_wait; | |
1373 | vx_run_ops.to_fetch_registers = vx_read_register; | |
1374 | vx_run_ops.to_store_registers = vx_write_register; | |
1375 | vx_run_ops.to_prepare_to_store = vx_prepare_to_store; | |
1376 | vx_run_ops.to_xfer_memory = vx_xfer_memory; | |
1377 | vx_run_ops.to_files_info = vx_run_files_info; | |
1378 | vx_run_ops.to_insert_breakpoint = vx_insert_breakpoint; | |
1379 | vx_run_ops.to_remove_breakpoint = vx_remove_breakpoint; | |
1380 | vx_run_ops.to_kill = vx_kill; | |
1381 | vx_run_ops.to_load = vx_load_command; | |
1382 | vx_run_ops.to_lookup_symbol = vx_lookup_symbol; | |
c5aa993b | 1383 | vx_run_ops.to_mourn_inferior = vx_mourn_inferior; |
c906108c SS |
1384 | vx_run_ops.to_stratum = process_stratum; |
1385 | vx_run_ops.to_has_memory = 1; | |
1386 | vx_run_ops.to_has_stack = 1; | |
1387 | vx_run_ops.to_has_registers = 1; | |
c5aa993b JM |
1388 | vx_run_ops.to_has_execution = 1; |
1389 | vx_run_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1390 | } |
1391 | \f | |
1392 | void | |
fba45db2 | 1393 | _initialize_vx (void) |
c906108c SS |
1394 | { |
1395 | init_vx_ops (); | |
1396 | add_target (&vx_ops); | |
1397 | init_vx_run_ops (); | |
1398 | add_target (&vx_run_ops); | |
1399 | ||
1400 | add_show_from_set | |
1401 | (add_set_cmd ("vxworks-timeout", class_support, var_uinteger, | |
1402 | (char *) &rpcTimeout.tv_sec, | |
1403 | "Set seconds to wait for rpc calls to return.\n\ | |
1404 | Set the number of seconds to wait for rpc calls to return.", &setlist), | |
1405 | &showlist); | |
1406 | } |