Commit | Line | Data |
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da6d8c04 DJ |
1 | /* Low level interface to ptrace, for the remote server for GDB. |
2 | Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
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. */ | |
21 | ||
22 | #include "server.h" | |
58caa3dc | 23 | #include "linux-low.h" |
da6d8c04 | 24 | |
58caa3dc | 25 | #include <sys/wait.h> |
da6d8c04 DJ |
26 | #include <stdio.h> |
27 | #include <sys/param.h> | |
28 | #include <sys/dir.h> | |
29 | #include <sys/ptrace.h> | |
30 | #include <sys/user.h> | |
31 | #include <signal.h> | |
32 | #include <sys/ioctl.h> | |
33 | #include <fcntl.h> | |
d07c63e7 | 34 | #include <string.h> |
0a30fbc4 DJ |
35 | #include <stdlib.h> |
36 | #include <unistd.h> | |
da6d8c04 | 37 | |
611cb4a5 DJ |
38 | static CORE_ADDR linux_bp_reinsert; |
39 | ||
40 | static void linux_resume (int step, int signal); | |
41 | ||
d844cde6 | 42 | #define PTRACE_ARG3_TYPE long |
c6ecbae5 | 43 | #define PTRACE_XFER_TYPE long |
da6d8c04 | 44 | |
58caa3dc DJ |
45 | #ifdef HAVE_LINUX_REGSETS |
46 | static int use_regsets_p = 1; | |
47 | #endif | |
48 | ||
da6d8c04 | 49 | extern int errno; |
c6ecbae5 | 50 | |
ce3a066d DJ |
51 | static int inferior_pid; |
52 | ||
611cb4a5 DJ |
53 | struct inferior_linux_data |
54 | { | |
55 | int pid; | |
56 | }; | |
57 | ||
da6d8c04 DJ |
58 | /* Start an inferior process and returns its pid. |
59 | ALLARGS is a vector of program-name and args. */ | |
60 | ||
ce3a066d DJ |
61 | static int |
62 | linux_create_inferior (char *program, char **allargs) | |
da6d8c04 | 63 | { |
611cb4a5 | 64 | struct inferior_linux_data *tdata; |
da6d8c04 DJ |
65 | int pid; |
66 | ||
67 | pid = fork (); | |
68 | if (pid < 0) | |
69 | perror_with_name ("fork"); | |
70 | ||
71 | if (pid == 0) | |
72 | { | |
73 | ptrace (PTRACE_TRACEME, 0, 0, 0); | |
74 | ||
75 | execv (program, allargs); | |
76 | ||
77 | fprintf (stderr, "Cannot exec %s: %s.\n", program, | |
d07c63e7 | 78 | strerror (errno)); |
da6d8c04 DJ |
79 | fflush (stderr); |
80 | _exit (0177); | |
81 | } | |
82 | ||
ce3a066d | 83 | add_inferior (pid); |
611cb4a5 DJ |
84 | tdata = (struct inferior_linux_data *) malloc (sizeof (*tdata)); |
85 | tdata->pid = pid; | |
86 | set_inferior_target_data (current_inferior, tdata); | |
87 | ||
ce3a066d DJ |
88 | /* FIXME remove */ |
89 | inferior_pid = pid; | |
90 | return 0; | |
da6d8c04 DJ |
91 | } |
92 | ||
93 | /* Attach to an inferior process. */ | |
94 | ||
ce3a066d DJ |
95 | static int |
96 | linux_attach (int pid) | |
da6d8c04 | 97 | { |
611cb4a5 DJ |
98 | struct inferior_linux_data *tdata; |
99 | ||
da6d8c04 DJ |
100 | if (ptrace (PTRACE_ATTACH, pid, 0, 0) != 0) |
101 | { | |
102 | fprintf (stderr, "Cannot attach to process %d: %s (%d)\n", pid, | |
103 | errno < sys_nerr ? sys_errlist[errno] : "unknown error", | |
104 | errno); | |
105 | fflush (stderr); | |
106 | _exit (0177); | |
107 | } | |
108 | ||
611cb4a5 DJ |
109 | add_inferior (pid); |
110 | tdata = (struct inferior_linux_data *) malloc (sizeof (*tdata)); | |
111 | tdata->pid = pid; | |
112 | set_inferior_target_data (current_inferior, tdata); | |
da6d8c04 DJ |
113 | return 0; |
114 | } | |
115 | ||
116 | /* Kill the inferior process. Make us have no inferior. */ | |
117 | ||
ce3a066d DJ |
118 | static void |
119 | linux_kill (void) | |
da6d8c04 DJ |
120 | { |
121 | if (inferior_pid == 0) | |
122 | return; | |
123 | ptrace (PTRACE_KILL, inferior_pid, 0, 0); | |
124 | wait (0); | |
ce3a066d | 125 | clear_inferiors (); |
da6d8c04 DJ |
126 | } |
127 | ||
128 | /* Return nonzero if the given thread is still alive. */ | |
ce3a066d DJ |
129 | static int |
130 | linux_thread_alive (int pid) | |
da6d8c04 DJ |
131 | { |
132 | return 1; | |
133 | } | |
134 | ||
611cb4a5 DJ |
135 | static int |
136 | linux_wait_for_one_inferior (struct inferior_info *child) | |
137 | { | |
138 | struct inferior_linux_data *child_data = inferior_target_data (child); | |
139 | int pid, wstat; | |
140 | ||
141 | while (1) | |
142 | { | |
143 | pid = waitpid (child_data->pid, &wstat, 0); | |
144 | ||
145 | if (pid != child_data->pid) | |
146 | perror_with_name ("wait"); | |
147 | ||
148 | /* If this target supports breakpoints, see if we hit one. */ | |
149 | if (the_low_target.stop_pc != NULL | |
150 | && WIFSTOPPED (wstat) | |
151 | && WSTOPSIG (wstat) == SIGTRAP) | |
152 | { | |
153 | CORE_ADDR stop_pc; | |
154 | ||
155 | if (linux_bp_reinsert != 0) | |
156 | { | |
157 | reinsert_breakpoint (linux_bp_reinsert); | |
158 | linux_bp_reinsert = 0; | |
159 | linux_resume (0, 0); | |
160 | continue; | |
161 | } | |
162 | ||
163 | fetch_inferior_registers (0); | |
164 | stop_pc = (*the_low_target.stop_pc) (); | |
165 | ||
166 | if (check_breakpoints (stop_pc) != 0) | |
167 | { | |
168 | if (the_low_target.set_pc != NULL) | |
169 | (*the_low_target.set_pc) (stop_pc); | |
170 | ||
171 | if (the_low_target.breakpoint_reinsert_addr == NULL) | |
172 | { | |
173 | linux_bp_reinsert = stop_pc; | |
174 | uninsert_breakpoint (stop_pc); | |
175 | linux_resume (1, 0); | |
176 | } | |
177 | else | |
178 | { | |
179 | reinsert_breakpoint_by_bp | |
180 | (stop_pc, (*the_low_target.breakpoint_reinsert_addr) ()); | |
181 | linux_resume (0, 0); | |
182 | } | |
183 | ||
184 | continue; | |
185 | } | |
186 | } | |
187 | ||
188 | return wstat; | |
189 | } | |
190 | /* NOTREACHED */ | |
191 | return 0; | |
192 | } | |
193 | ||
da6d8c04 DJ |
194 | /* Wait for process, returns status */ |
195 | ||
ce3a066d DJ |
196 | static unsigned char |
197 | linux_wait (char *status) | |
da6d8c04 | 198 | { |
e5f1222d | 199 | int w; |
da6d8c04 DJ |
200 | |
201 | enable_async_io (); | |
611cb4a5 | 202 | w = linux_wait_for_one_inferior (current_inferior); |
da6d8c04 | 203 | disable_async_io (); |
da6d8c04 DJ |
204 | |
205 | if (WIFEXITED (w)) | |
206 | { | |
207 | fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w)); | |
208 | *status = 'W'; | |
ce3a066d | 209 | clear_inferiors (); |
da6d8c04 DJ |
210 | return ((unsigned char) WEXITSTATUS (w)); |
211 | } | |
212 | else if (!WIFSTOPPED (w)) | |
213 | { | |
214 | fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w)); | |
ce3a066d | 215 | clear_inferiors (); |
da6d8c04 DJ |
216 | *status = 'X'; |
217 | return ((unsigned char) WTERMSIG (w)); | |
218 | } | |
219 | ||
220 | fetch_inferior_registers (0); | |
221 | ||
222 | *status = 'T'; | |
223 | return ((unsigned char) WSTOPSIG (w)); | |
224 | } | |
225 | ||
226 | /* Resume execution of the inferior process. | |
227 | If STEP is nonzero, single-step it. | |
228 | If SIGNAL is nonzero, give it that signal. */ | |
229 | ||
ce3a066d DJ |
230 | static void |
231 | linux_resume (int step, int signal) | |
da6d8c04 DJ |
232 | { |
233 | errno = 0; | |
234 | ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal); | |
235 | if (errno) | |
236 | perror_with_name ("ptrace"); | |
237 | } | |
238 | ||
c6ecbae5 DJ |
239 | |
240 | #ifdef HAVE_LINUX_USRREGS | |
241 | ||
0a30fbc4 | 242 | #define REGISTER_RAW_SIZE(regno) register_size((regno)) |
da6d8c04 DJ |
243 | |
244 | int | |
0a30fbc4 | 245 | register_addr (int regnum) |
da6d8c04 DJ |
246 | { |
247 | int addr; | |
248 | ||
2ec06d2e | 249 | if (regnum < 0 || regnum >= the_low_target.num_regs) |
da6d8c04 DJ |
250 | error ("Invalid register number %d.", regnum); |
251 | ||
2ec06d2e | 252 | addr = the_low_target.regmap[regnum]; |
da6d8c04 DJ |
253 | if (addr == -1) |
254 | addr = 0; | |
255 | ||
256 | return addr; | |
257 | } | |
258 | ||
58caa3dc | 259 | /* Fetch one register. */ |
da6d8c04 DJ |
260 | static void |
261 | fetch_register (int regno) | |
262 | { | |
263 | CORE_ADDR regaddr; | |
264 | register int i; | |
265 | ||
2ec06d2e | 266 | if (regno >= the_low_target.num_regs) |
0a30fbc4 | 267 | return; |
2ec06d2e | 268 | if ((*the_low_target.cannot_fetch_register) (regno)) |
0a30fbc4 | 269 | return; |
da6d8c04 | 270 | |
0a30fbc4 DJ |
271 | regaddr = register_addr (regno); |
272 | if (regaddr == -1) | |
273 | return; | |
da6d8c04 DJ |
274 | for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE)) |
275 | { | |
276 | errno = 0; | |
0a30fbc4 | 277 | *(PTRACE_XFER_TYPE *) (register_data (regno) + i) = |
da6d8c04 DJ |
278 | ptrace (PTRACE_PEEKUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, 0); |
279 | regaddr += sizeof (PTRACE_XFER_TYPE); | |
280 | if (errno != 0) | |
281 | { | |
282 | /* Warning, not error, in case we are attached; sometimes the | |
283 | kernel doesn't let us at the registers. */ | |
284 | char *err = strerror (errno); | |
285 | char *msg = alloca (strlen (err) + 128); | |
286 | sprintf (msg, "reading register %d: %s", regno, err); | |
287 | error (msg); | |
288 | goto error_exit; | |
289 | } | |
290 | } | |
291 | error_exit:; | |
292 | } | |
293 | ||
294 | /* Fetch all registers, or just one, from the child process. */ | |
58caa3dc DJ |
295 | static void |
296 | usr_fetch_inferior_registers (int regno) | |
da6d8c04 DJ |
297 | { |
298 | if (regno == -1 || regno == 0) | |
2ec06d2e | 299 | for (regno = 0; regno < the_low_target.num_regs; regno++) |
da6d8c04 DJ |
300 | fetch_register (regno); |
301 | else | |
302 | fetch_register (regno); | |
303 | } | |
304 | ||
305 | /* Store our register values back into the inferior. | |
306 | If REGNO is -1, do this for all registers. | |
307 | Otherwise, REGNO specifies which register (so we can save time). */ | |
58caa3dc DJ |
308 | static void |
309 | usr_store_inferior_registers (int regno) | |
da6d8c04 DJ |
310 | { |
311 | CORE_ADDR regaddr; | |
312 | int i; | |
da6d8c04 DJ |
313 | |
314 | if (regno >= 0) | |
315 | { | |
2ec06d2e | 316 | if (regno >= the_low_target.num_regs) |
0a30fbc4 DJ |
317 | return; |
318 | ||
bc1e36ca | 319 | if ((*the_low_target.cannot_store_register) (regno) == 1) |
0a30fbc4 DJ |
320 | return; |
321 | ||
322 | regaddr = register_addr (regno); | |
323 | if (regaddr == -1) | |
da6d8c04 | 324 | return; |
da6d8c04 | 325 | errno = 0; |
c6ecbae5 | 326 | for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE)) |
da6d8c04 | 327 | { |
0a30fbc4 DJ |
328 | errno = 0; |
329 | ptrace (PTRACE_POKEUSER, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, | |
330 | *(int *) (register_data (regno) + i)); | |
da6d8c04 DJ |
331 | if (errno != 0) |
332 | { | |
bc1e36ca DJ |
333 | if ((*the_low_target.cannot_store_register) (regno) == 0) |
334 | { | |
335 | char *err = strerror (errno); | |
336 | char *msg = alloca (strlen (err) + 128); | |
337 | sprintf (msg, "writing register %d: %s", | |
338 | regno, err); | |
339 | error (msg); | |
340 | return; | |
341 | } | |
da6d8c04 | 342 | } |
0a30fbc4 | 343 | regaddr += sizeof (int); |
da6d8c04 | 344 | } |
da6d8c04 DJ |
345 | } |
346 | else | |
2ec06d2e | 347 | for (regno = 0; regno < the_low_target.num_regs; regno++) |
da6d8c04 DJ |
348 | store_inferior_registers (regno); |
349 | } | |
58caa3dc DJ |
350 | #endif /* HAVE_LINUX_USRREGS */ |
351 | ||
352 | ||
353 | ||
354 | #ifdef HAVE_LINUX_REGSETS | |
355 | ||
356 | static int | |
357 | regsets_fetch_inferior_registers (void) | |
358 | { | |
359 | struct regset_info *regset; | |
360 | ||
361 | regset = target_regsets; | |
362 | ||
363 | while (regset->size >= 0) | |
364 | { | |
365 | void *buf; | |
366 | int res; | |
367 | ||
368 | if (regset->size == 0) | |
369 | { | |
370 | regset ++; | |
371 | continue; | |
372 | } | |
373 | ||
374 | buf = malloc (regset->size); | |
375 | res = ptrace (regset->get_request, inferior_pid, 0, (int) buf); | |
376 | if (res < 0) | |
377 | { | |
378 | if (errno == EIO) | |
379 | { | |
380 | /* If we get EIO on the first regset, do not try regsets again. | |
381 | If we get EIO on a later regset, disable that regset. */ | |
382 | if (regset == target_regsets) | |
383 | { | |
384 | use_regsets_p = 0; | |
385 | return -1; | |
386 | } | |
387 | else | |
388 | { | |
389 | regset->size = 0; | |
390 | continue; | |
391 | } | |
392 | } | |
393 | else | |
394 | { | |
395 | perror ("Warning: ptrace(regsets_fetch_inferior_registers)"); | |
396 | } | |
397 | } | |
398 | regset->store_function (buf); | |
399 | regset ++; | |
400 | } | |
ce3a066d | 401 | return 0; |
58caa3dc DJ |
402 | } |
403 | ||
404 | static int | |
405 | regsets_store_inferior_registers (void) | |
406 | { | |
407 | struct regset_info *regset; | |
408 | ||
409 | regset = target_regsets; | |
410 | ||
411 | while (regset->size >= 0) | |
412 | { | |
413 | void *buf; | |
414 | int res; | |
415 | ||
416 | if (regset->size == 0) | |
417 | { | |
418 | regset ++; | |
419 | continue; | |
420 | } | |
421 | ||
422 | buf = malloc (regset->size); | |
423 | regset->fill_function (buf); | |
424 | res = ptrace (regset->set_request, inferior_pid, 0, (int) buf); | |
425 | if (res < 0) | |
426 | { | |
427 | if (errno == EIO) | |
428 | { | |
429 | /* If we get EIO on the first regset, do not try regsets again. | |
430 | If we get EIO on a later regset, disable that regset. */ | |
431 | if (regset == target_regsets) | |
432 | { | |
433 | use_regsets_p = 0; | |
434 | return -1; | |
435 | } | |
436 | else | |
437 | { | |
438 | regset->size = 0; | |
439 | continue; | |
440 | } | |
441 | } | |
442 | else | |
443 | { | |
ce3a066d | 444 | perror ("Warning: ptrace(regsets_store_inferior_registers)"); |
58caa3dc DJ |
445 | } |
446 | } | |
447 | regset ++; | |
448 | } | |
ce3a066d | 449 | return 0; |
58caa3dc DJ |
450 | } |
451 | ||
452 | #endif /* HAVE_LINUX_REGSETS */ | |
453 | ||
454 | ||
455 | void | |
ce3a066d | 456 | linux_fetch_registers (int regno) |
58caa3dc DJ |
457 | { |
458 | #ifdef HAVE_LINUX_REGSETS | |
459 | if (use_regsets_p) | |
460 | { | |
461 | if (regsets_fetch_inferior_registers () == 0) | |
462 | return; | |
463 | } | |
464 | #endif | |
465 | #ifdef HAVE_LINUX_USRREGS | |
466 | usr_fetch_inferior_registers (regno); | |
467 | #endif | |
468 | } | |
469 | ||
470 | void | |
ce3a066d | 471 | linux_store_registers (int regno) |
58caa3dc DJ |
472 | { |
473 | #ifdef HAVE_LINUX_REGSETS | |
474 | if (use_regsets_p) | |
475 | { | |
476 | if (regsets_store_inferior_registers () == 0) | |
477 | return; | |
478 | } | |
479 | #endif | |
480 | #ifdef HAVE_LINUX_USRREGS | |
481 | usr_store_inferior_registers (regno); | |
482 | #endif | |
483 | } | |
484 | ||
da6d8c04 | 485 | |
da6d8c04 DJ |
486 | /* Copy LEN bytes from inferior's memory starting at MEMADDR |
487 | to debugger memory starting at MYADDR. */ | |
488 | ||
ce3a066d DJ |
489 | static void |
490 | linux_read_memory (CORE_ADDR memaddr, char *myaddr, int len) | |
da6d8c04 DJ |
491 | { |
492 | register int i; | |
493 | /* Round starting address down to longword boundary. */ | |
494 | register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_XFER_TYPE); | |
495 | /* Round ending address up; get number of longwords that makes. */ | |
496 | register int count | |
497 | = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) | |
498 | / sizeof (PTRACE_XFER_TYPE); | |
499 | /* Allocate buffer of that many longwords. */ | |
500 | register PTRACE_XFER_TYPE *buffer | |
501 | = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE)); | |
502 | ||
503 | /* Read all the longwords */ | |
504 | for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE)) | |
505 | { | |
d844cde6 | 506 | buffer[i] = ptrace (PTRACE_PEEKTEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr, 0); |
da6d8c04 DJ |
507 | } |
508 | ||
509 | /* Copy appropriate bytes out of the buffer. */ | |
510 | memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)), len); | |
511 | } | |
512 | ||
513 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
514 | to inferior's memory at MEMADDR. | |
515 | On failure (cannot write the inferior) | |
516 | returns the value of errno. */ | |
517 | ||
ce3a066d | 518 | static int |
611cb4a5 | 519 | linux_write_memory (CORE_ADDR memaddr, const char *myaddr, int len) |
da6d8c04 DJ |
520 | { |
521 | register int i; | |
522 | /* Round starting address down to longword boundary. */ | |
523 | register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_XFER_TYPE); | |
524 | /* Round ending address up; get number of longwords that makes. */ | |
525 | register int count | |
526 | = (((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1) / sizeof (PTRACE_XFER_TYPE); | |
527 | /* Allocate buffer of that many longwords. */ | |
528 | register PTRACE_XFER_TYPE *buffer = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE)); | |
529 | extern int errno; | |
530 | ||
531 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
532 | ||
d844cde6 DJ |
533 | buffer[0] = ptrace (PTRACE_PEEKTEXT, inferior_pid, |
534 | (PTRACE_ARG3_TYPE) addr, 0); | |
da6d8c04 DJ |
535 | |
536 | if (count > 1) | |
537 | { | |
538 | buffer[count - 1] | |
539 | = ptrace (PTRACE_PEEKTEXT, inferior_pid, | |
d844cde6 DJ |
540 | (PTRACE_ARG3_TYPE) (addr + (count - 1) |
541 | * sizeof (PTRACE_XFER_TYPE)), | |
542 | 0); | |
da6d8c04 DJ |
543 | } |
544 | ||
545 | /* Copy data to be written over corresponding part of buffer */ | |
546 | ||
547 | memcpy ((char *) buffer + (memaddr & (sizeof (PTRACE_XFER_TYPE) - 1)), myaddr, len); | |
548 | ||
549 | /* Write the entire buffer. */ | |
550 | ||
551 | for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE)) | |
552 | { | |
553 | errno = 0; | |
d844cde6 | 554 | ptrace (PTRACE_POKETEXT, inferior_pid, (PTRACE_ARG3_TYPE) addr, buffer[i]); |
da6d8c04 DJ |
555 | if (errno) |
556 | return errno; | |
557 | } | |
558 | ||
559 | return 0; | |
560 | } | |
2f2893d9 DJ |
561 | |
562 | static void | |
563 | linux_look_up_symbols (void) | |
564 | { | |
565 | /* Don't need to look up any symbols yet. */ | |
566 | } | |
567 | ||
da6d8c04 | 568 | \f |
ce3a066d DJ |
569 | static struct target_ops linux_target_ops = { |
570 | linux_create_inferior, | |
571 | linux_attach, | |
572 | linux_kill, | |
573 | linux_thread_alive, | |
574 | linux_resume, | |
575 | linux_wait, | |
576 | linux_fetch_registers, | |
577 | linux_store_registers, | |
578 | linux_read_memory, | |
579 | linux_write_memory, | |
2f2893d9 | 580 | linux_look_up_symbols, |
ce3a066d DJ |
581 | }; |
582 | ||
da6d8c04 DJ |
583 | void |
584 | initialize_low (void) | |
585 | { | |
ce3a066d | 586 | set_target_ops (&linux_target_ops); |
611cb4a5 DJ |
587 | set_breakpoint_data (the_low_target.breakpoint, |
588 | the_low_target.breakpoint_len); | |
0a30fbc4 | 589 | init_registers (); |
da6d8c04 | 590 | } |