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[deliverable/binutils-gdb.git] / gdb / proc-api.c
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0fda6bd2 1/* Machine independent support for SVR4 /proc (process file system) for GDB.
b6ba6518 2 Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
0fda6bd2
JM		 3 Written by Michael Snyder at Cygnus Solutions.
4 Based on work by Fred Fish, Stu Grossman, Geoff Noer, and others.
5
6This file is part of GDB.
7
8This program is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2 of the License, or
11(at your option) any later version.
12
13This program is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with this program; if not, write to the Free Software Foundation,
20Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21
22/*
23 * Pretty-print trace of api calls to the /proc api
24 * (ioctl or read/write calls).
25 *
26 */
27
28#include "defs.h"
29#include "gdbcmd.h"
30
31#if defined (NEW_PROC_API)
32#define _STRUCTURED_PROC 1
33#endif
34
35#include <stdio.h>
36#include <sys/types.h>
37#include <sys/procfs.h>
38#include <sys/proc.h> /* for struct proc */
6e8cb14a 39#ifdef HAVE_SYS_USER_H
0fda6bd2 40#include <sys/user.h> /* for struct user */
6e8cb14a 41#endif
0fda6bd2
JM		 42#include <fcntl.h> /* for O_RDWR etc. */
43#include <sys/wait.h>
44
45#include "proc-utils.h"
46
47/* Much of the information used in the /proc interface, particularly for
48 printing status information, is kept as tables of structures of the
49 following form. These tables can be used to map numeric values to
50 their symbolic names and to a string that describes their specific use. */
51
52struct trans {
53 long value; /* The numeric value */
54 char *name; /* The equivalent symbolic value */
55 char *desc; /* Short description of value */
56};
57
103b3ef5 58static int procfs_trace = 0;
0fda6bd2
JM		 59static FILE *procfs_file = NULL;
60static char *procfs_filename = "procfs_trace";
61
103b3ef5
MS		 62static void
63prepare_to_trace (void)
64{
65 if (procfs_trace) /* if procfs tracing turned on */
66 if (procfs_file == NULL) /* if output file not yet open */
67 if (procfs_filename != NULL) /* if output filename known */
68 procfs_file = fopen (procfs_filename, "a"); /* open output file */
69}
70
0fda6bd2 71static void
fba45db2 72set_procfs_trace_cmd (char *args, int from_tty, struct cmd_list_element *c)
0fda6bd2
JM		 73{
74#if 0 /* not sure what I might actually need to do here, if anything */
75 if (procfs_file)
76 fflush (procfs_file);
77#endif
78}
79
80static void
fba45db2 81set_procfs_file_cmd (char *args, int from_tty, struct cmd_list_element *c)
0fda6bd2
JM		 82{
83 /* Just changed the filename for procfs tracing.
84 If a file was already open, close it. */
85 if (procfs_file)
86 fclose (procfs_file);
87 procfs_file = NULL;
88}
89
90
91#ifndef NEW_PROC_API
92
93static struct trans ioctl_table[] = {
94#ifdef PIOCACINFO /* irix */
95 { PIOCACINFO, "PIOCACINFO", "get process account info" },
96#endif
97 { PIOCACTION, "PIOCACTION", "get signal action structs" },
98#ifdef PIOCARGUMENTS /* osf */
99 { PIOCARGUMENTS, "PIOCARGUMENTS", "command line args" },
100#endif
101#ifdef PIOCAUXV /* solaris aux vectors */
102 { PIOCAUXV, "PIOCAUXV", "get aux vector" },
103 { PIOCNAUXV, "PIOCNAUXV", "get number of aux vector entries" },
104#endif /* AUXV */
105 { PIOCCFAULT, "PIOCCFAULT", "clear current fault" },
106 { PIOCCRED, "PIOCCRED", "get process credentials" },
107#ifdef PIOCENEVCTRS /* irix event counters */
108 { PIOCENEVCTRS, "PIOCENEVCTRS", "acquire and start event counters" },
109 { PIOCGETEVCTRL, "PIOCGETEVCTRL", "get control info of event counters" },
110 { PIOCGETEVCTRS, "PIOCGETEVCTRS", "dump event counters" },
111 { PIOCGETPREVCTRS, "PIOCGETPREVCTRS", "dump event counters & prusage info" },
112 { PIOCRELEVCTRS, "PIOCRELEVCTRS", "release/stop event counters" },
113 { PIOCSETEVCTRL, "PIOCSETEVCTRL", "set control info of event counters" },
114 { PIOCGETPTIMER, "PIOCGETPTIMER", "get process timers" },
115#endif /* irix event counters */
116 { PIOCGENTRY, "PIOCGENTRY", "get traced syscall entry set" },
6e8cb14a 117#if defined (PIOCGETPR)
0fda6bd2 118 { PIOCGETPR, "PIOCGETPR", "read struct proc" },
6e8cb14a
AC		 119#endif
120#if defined (PIOCGETU)
0fda6bd2 121 { PIOCGETU, "PIOCGETU", "read user area" },
6e8cb14a 122#endif
0fda6bd2
JM		 123#if defined (PIOCGETUTK) && (defined(KERNEL) || defined(SHOW_UTT)) /* osf */
124 { PIOCGETUTK, "PIOCGETUTK", "get the utask struct" },
125#endif
126 { PIOCGEXIT, "PIOCGEXIT", "get traced syscall exit set" },
127 { PIOCGFAULT, "PIOCGFAULT", "get traced fault set" },
128#ifdef PIOCGFPCR /* osf */
129 { PIOCGFPCR, "PIOCGFPCR", "get FP control register" },
130 { PIOCSFPCR, "PIOCSFPCR", "set FP conrtol register" },
131#endif
132 { PIOCGFPREG, "PIOCGFPREG", "get floating point registers" },
133 { PIOCGHOLD, "PIOCGHOLD", "get held signal set" },
134 { PIOCGREG, "PIOCGREG", "get general registers" },
135 { PIOCGROUPS, "PIOCGROUPS", "get supplementary groups" },
136#ifdef PIOCGSPCACT /* osf */
137 { PIOCGSPCACT, "PIOCGSPCACT", "get special action" },
138 { PIOCSSPCACT, "PIOCSSPCACT", "set special action" },
139#endif
140 { PIOCGTRACE, "PIOCGTRACE", "get traced signal set" },
141#ifdef PIOCGWATCH /* irix watchpoints */
142 { PIOCGWATCH, "PIOCGWATCH", "get watchpoint" },
143 { PIOCSWATCH, "PIOCSWATCH", "set watchpoint" },
144 { PIOCNWATCH, "PIOCNWATCH", "get number of watchpoints" },
145#endif /* irix watchpoints */
146#ifdef PIOCGWIN /* solaris sparc */
147 { PIOCGWIN, "PIOCGWIN", "get gwindows_t" },
148#endif
149#ifdef PIOCGXREG /* solaris sparc extra regs */
150 { PIOCGXREGSIZE, "PIOCXREGSIZE", "get extra register state size" },
151 { PIOCGXREG, "PIOCGXREG", "get extra register state" },
152 { PIOCSXREG, "PIOCSXREG", "set extra register state" },
153#endif /* XREG */
154 { PIOCKILL, "PIOCKILL", "send signal" },
155#ifdef PIOCLDT /* solaris i386 */
156 { PIOCLDT, "PIOCLDT", "get LDT" },
157 { PIOCNLDT, "PIOCNLDT", "get number of LDT entries" },
158#endif
159#ifdef PIOCLSTATUS /* solaris and unixware */
160 { PIOCLSTATUS, "PIOCLSTATUS", "get status of all lwps" },
161 { PIOCLUSAGE, "PIOCLUSAGE", "get resource usage of all lwps" },
162 { PIOCOPENLWP, "PIOCOPENLWP", "get lwp file descriptor" },
163 { PIOCLWPIDS, "PIOCLWPIDS", "get lwp identifiers" },
164#endif /* LWP */
165 { PIOCMAP, "PIOCMAP", "get memory map information" },
166 { PIOCMAXSIG, "PIOCMAXSIG", "get max signal number" },
167 { PIOCNICE, "PIOCNICE", "set nice priority" },
168 { PIOCNMAP, "PIOCNMAP", "get number of memory mappings" },
169 { PIOCOPENM, "PIOCOPENM", "open mapped object for reading" },
170#ifdef PIOCOPENMOBS /* osf */
171 { PIOCOPENMOBS, "PIOCOPENMOBS", "open mapped object" },
172#endif
173#ifdef PIOCOPENPD /* solaris */
174 { PIOCOPENPD, "PIOCOPENPD", "get page data file descriptor" },
175#endif
176 { PIOCPSINFO, "PIOCPSINFO", "get ps(1) information" },
177 { PIOCRESET, "PIOCRESET", "reset process flags" },
178 { PIOCRFORK, "PIOCRFORK", "reset inherit-on-fork flag" },
179 { PIOCRRLC, "PIOCRRLC", "reset run-on-last-close flag" },
180 { PIOCRUN, "PIOCRUN", "make process runnable" },
181#ifdef PIOCSAVECCNTRS /* irix */
182 { PIOCSAVECCNTRS, "PIOCSAVECCNTRS", "parent gets child cntrs" },
183#endif
184 { PIOCSENTRY, "PIOCSENTRY", "set traced syscall entry set" },
185 { PIOCSET, "PIOCSET", "set process flags" },
186 { PIOCSEXIT, "PIOCSEXIT", "set traced syscall exit set" },
187 { PIOCSFAULT, "PIOCSFAULT", "set traced fault set" },
188 { PIOCSFORK, "PIOCSFORK", "set inherit-on-fork flag" },
189 { PIOCSFPREG, "PIOCSFPREG", "set floating point registers" },
190 { PIOCSHOLD, "PIOCSHOLD", "set held signal set" },
191 { PIOCSREG, "PIOCSREG", "set general registers" },
192 { PIOCSRLC, "PIOCSRLC", "set run-on-last-close flag" },
193 { PIOCSSIG, "PIOCSSIG", "set current signal" },
194 { PIOCSTATUS, "PIOCSTATUS", "get process status" },
195 { PIOCSTOP, "PIOCSTOP", "post stop request" },
196 { PIOCSTRACE, "PIOCSTRACE", "set traced signal set" },
197 { PIOCUNKILL, "PIOCUNKILL", "delete a signal" },
198#ifdef PIOCUSAGE /* solaris */
199 { PIOCUSAGE, "PIOCUSAGE", "get resource usage" },
200#endif
201 { PIOCWSTOP, "PIOCWSTOP", "wait for process to stop" },
202
203#ifdef PIOCNTHR /* osf threads */
204 { PIOCNTHR, "PIOCNTHR", "get thread count" },
205 { PIOCRTINH, "PIOCRTINH", "reset inherit-on-thread-creation" },
206 { PIOCSTINH, "PIOCSTINH", "set inherit-on-thread-creation" },
207 { PIOCTLIST, "PIOCTLIST", "get thread ids" },
208 { PIOCXPTH, "PIOCXPTH", "translate port to thread handle" },
209 { PIOCTRUN, "PIOCTRUN", "make thread runnable" },
210 { PIOCTSTATUS, "PIOCTSTATUS", "get thread status" },
211 { PIOCTSTOP, "PIOCTSTOP", "stop a thread" },
212 /* ... TGTRACE TSTRACE TSSIG TKILL TUNKILL TCFAULT TGFAULT TSFAULT
213 TGFPREG TSFPREG TGREG TSREG TACTION TTERM TABRUN TGENTRY TSENTRY
214 TGEXIT TSEXIT TSHOLD ... thread functions */
215#endif /* osf threads */
216 { -1, NULL, NULL }
217};
218
219int
fba45db2 220ioctl_with_trace (int fd, long opcode, void *ptr, char *file, int line)
0fda6bd2
JM		 221{
222 int i, ret, arg1;
223
103b3ef5
MS		 224 prepare_to_trace ();
225
0fda6bd2
JM		 226 if (procfs_trace)
227 {
0fda6bd2
JM		 228 for (i = 0; ioctl_table[i].name != NULL; i++)
229 if (ioctl_table[i].value == opcode)
230 break;
231
232 if (info_verbose)
233 fprintf (procfs_file ? procfs_file : stdout,
234 "%s:%d -- ", file, line);
235 switch (opcode) {
236 case PIOCSET:
237 arg1 = ptr ? *(long *) ptr : 0;
238 fprintf (procfs_file ? procfs_file : stdout,
239 "ioctl (PIOCSET, %s) %s\n",
240 arg1 == PR_FORK ? "PR_FORK" :
241 arg1 == PR_RLC ? "PR_RLC" :
242#ifdef PR_ASYNC
243 arg1 == PR_ASYNC ? "PR_ASYNC" :
244#endif
245 "<unknown flag>",
246 info_verbose ? ioctl_table[i].desc : "");
247 break;
248 case PIOCRESET:
249 arg1 = ptr ? *(long *) ptr : 0;
250 fprintf (procfs_file ? procfs_file : stdout,
251 "ioctl (PIOCRESET, %s) %s\n",
252 arg1 == PR_FORK ? "PR_FORK" :
253 arg1 == PR_RLC ? "PR_RLC" :
254#ifdef PR_ASYNC
255 arg1 == PR_ASYNC ? "PR_ASYNC" :
256#endif
257 "<unknown flag>",
258 info_verbose ? ioctl_table[i].desc : "");
259 break;
260 case PIOCSTRACE:
261 fprintf (procfs_file ? procfs_file : stdout,
262 "ioctl (PIOCSTRACE) ");
263 proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
264 (sigset_t *) ptr, 0);
265 break;
266 case PIOCSFAULT:
267 fprintf (procfs_file ? procfs_file : stdout,
268 "ioctl (%s) ",
269 opcode == PIOCSFAULT ? "PIOCSFAULT" : "PIOCGFAULT");
270 proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
271 (fltset_t *) ptr, 0);
272 break;
273 case PIOCSENTRY:
274 fprintf (procfs_file ? procfs_file : stdout,
275 "ioctl (%s) ",
276 opcode == PIOCSENTRY ? "PIOCSENTRY" : "PIOCGENTRY");
277 proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
278 (sysset_t *) ptr, 0);
279 break;
280 case PIOCSEXIT:
281 fprintf (procfs_file ? procfs_file : stdout,
282 "ioctl (%s) ",
283 opcode == PIOCSEXIT ? "PIOCSEXIT" : "PIOCGEXIT");
284 proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
285 (sysset_t *) ptr, 0);
286 break;
287 case PIOCSHOLD:
288 fprintf (procfs_file ? procfs_file : stdout,
289 "ioctl (%s) ",
290 opcode == PIOCSHOLD ? "PIOCSHOLD" : "PIOCGHOLD");
291 proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
292 (sigset_t *) ptr, 0);
293 break;
294 case PIOCSSIG:
295 fprintf (procfs_file ? procfs_file : stdout,
296 "ioctl (PIOCSSIG) ");
297 proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
298 ptr ? ((siginfo_t *) ptr)->si_signo : 0,
299 0);
300 fprintf (procfs_file ? procfs_file : stdout, "\n");
301 break;
302 case PIOCRUN:
303 fprintf (procfs_file ? procfs_file : stdout,
304 "ioctl (PIOCRUN) ");
305
306 arg1 = ptr ? *(long *) ptr : 0;
307 if (arg1 & PRCSIG)
308 fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
309 if (arg1 & PRCFAULT)
310 fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
311 if (arg1 & PRSTRACE)
312 fprintf (procfs_file ? procfs_file : stdout, "setTrace ");
313 if (arg1 & PRSHOLD)
314 fprintf (procfs_file ? procfs_file : stdout, "setHold ");
315 if (arg1 & PRSFAULT)
316 fprintf (procfs_file ? procfs_file : stdout, "setFlt ");
317 if (arg1 & PRSVADDR)
318 fprintf (procfs_file ? procfs_file : stdout, "setVaddr ");
319 if (arg1 & PRSTEP)
320 fprintf (procfs_file ? procfs_file : stdout, "step ");
321 if (arg1 & PRSABORT)
322 fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
323 if (arg1 & PRSTOP)
324 fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
325
326 fprintf (procfs_file ? procfs_file : stdout, "\n");
327 break;
328 case PIOCKILL:
329 fprintf (procfs_file ? procfs_file : stdout,
330 "ioctl (PIOCKILL) ");
331 proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
332 ptr ? *(long *) ptr : 0, 0);
333 fprintf (procfs_file ? procfs_file : stdout, "\n");
334 break;
335#ifdef PIOCSSPCACT
336 case PIOCSSPCACT:
337 fprintf (procfs_file ? procfs_file : stdout,
338 "ioctl (PIOCSSPCACT) ");
339 arg1 = ptr ? *(long *) ptr : 0;
340 if (arg1 & PRFS_STOPFORK)
341 fprintf (procfs_file ? procfs_file : stdout, "stopFork ");
342 if (arg1 & PRFS_STOPEXEC)
343 fprintf (procfs_file ? procfs_file : stdout, "stopExec ");
344 if (arg1 & PRFS_STOPTERM)
345 fprintf (procfs_file ? procfs_file : stdout, "stopTerm ");
346 if (arg1 & PRFS_STOPTCR)
347 fprintf (procfs_file ? procfs_file : stdout, "stopThreadCreate ");
348 if (arg1 & PRFS_STOPTTERM)
349 fprintf (procfs_file ? procfs_file : stdout, "stopThreadTerm ");
350 if (arg1 & PRFS_KOLC)
351 fprintf (procfs_file ? procfs_file : stdout, "killOnLastClose ");
352 fprintf (procfs_file ? procfs_file : stdout, "\n");
353 break;
354#endif /* PIOCSSPCACT */
355 default:
356 if (ioctl_table[i].name)
357 fprintf (procfs_file ? procfs_file : stdout,
358 "ioctl (%s) %s\n",
359 ioctl_table[i].name,
360 info_verbose ? ioctl_table[i].desc : "");
361 else
362 fprintf (procfs_file ? procfs_file : stdout,
363 "ioctl (<unknown %ld (0x%lx)) \n", opcode, opcode);
364 break;
365 }
366 if (procfs_file)
367 fflush (procfs_file);
368 }
103b3ef5 369 errno = 0;
0fda6bd2
JM		 370 ret = ioctl (fd, opcode, ptr);
371 if (procfs_trace && ret < 0)
372 {
373 fprintf (procfs_file ? procfs_file : stdout,
103b3ef5 374 "[ioctl (%s) FAILED! (%s)]\n",
0fda6bd2 375 ioctl_table[i].name != NULL ?
103b3ef5
MS		 376 ioctl_table[i].name : "<unknown>",
377 safe_strerror (errno));
0fda6bd2
JM		 378 if (procfs_file)
379 fflush (procfs_file);
380 }
381
382 return ret;
383}
384
385#else /* NEW_PROC_API */
386
387static struct trans rw_table[] = {
388#ifdef PCAGENT /* solaris */
389 { PCAGENT, "PCAGENT", "create agent lwp with regs from argument" },
390#endif
391 { PCCFAULT, "PCCFAULT", "clear current fault" },
392#ifdef PCCSIG /* solaris */
393 { PCCSIG, "PCCSIG", "clear current signal" },
394#endif
395 { PCDSTOP, "PCDSTOP", "post stop request" },
396 { PCKILL, "PCKILL", "post a signal" },
397 { PCNICE, "PCNICE", "set nice priority" },
398#ifdef PCREAD /* solaris */
399 { PCREAD, "PCREAD", "read from the address space" },
400 { PCWRITE, "PCWRITE", "write to the address space" },
401#endif
402#ifdef PCRESET /* unixware */
403 { PCRESET, "PCRESET", "unset modes" },
404#endif
405 { PCRUN, "PCRUN", "make process/lwp runnable" },
406#ifdef PCSASRS /* solaris 2.7 only */
407 { PCSASRS, "PCSASRS", "set ancillary state registers" },
408#endif
409#ifdef PCSCRED /* solaris */
410 { PCSCRED, "PCSCRED", "set process credentials" },
411#endif
412 { PCSENTRY, "PCSENTRY", "set traced syscall entry set" },
413 { PCSET, "PCSET", "set modes" },
414 { PCSEXIT, "PCSEXIT", "set traced syscall exit set" },
415 { PCSFAULT, "PCSFAULT", "set traced fault set" },
416 { PCSFPREG, "PCSFPREG", "set floating point registers" },
417 { PCSHOLD, "PCSHOLD", "set signal mask" },
418 { PCSREG, "PCSREG", "set general registers" },
419 { PCSSIG, "PCSSIG", "set current signal" },
420 { PCSTOP, "PCSTOP", "post stop request and wait" },
421 { PCSTRACE, "PCSTRACE", "set traced signal set" },
422#ifdef PCSVADDR /* solaris */
423 { PCSVADDR, "PCSVADDR", "set pc virtual address" },
424#endif
425#ifdef PCSXREG /* solaris sparc only */
426 { PCSXREG, "PCSXREG", "set extra registers" },
427#endif
428#ifdef PCTWSTOP /* solaris */
429 { PCTWSTOP, "PCTWSTOP", "wait for stop, with timeout arg" },
430#endif
431 { PCUNKILL, "PCUNKILL", "delete a pending signal" },
432#ifdef PCUNSET /* solaris */
433 { PCUNSET, "PCUNSET", "unset modes" },
434#endif
435#ifdef PCWATCH /* solaris */
436 { PCWATCH, "PCWATCH", "set/unset watched memory area" },
437#endif
438 { PCWSTOP, "PCWSTOP", "wait for process/lwp to stop, no timeout" },
439 { 0, NULL, NULL }
440};
441
442static off_t lseek_offset;
443
444int
fba45db2 445write_with_trace (int fd, void *varg, size_t len, char *file, int line)
0fda6bd2
JM		 446{
447 int i;
0fda6bd2 448 int ret;
103b3ef5 449 long *arg = (long *) varg;
0fda6bd2 450
103b3ef5 451 prepare_to_trace ();
0fda6bd2
JM		 452 if (procfs_trace)
453 {
103b3ef5 454 long opcode = arg[0];
0fda6bd2
JM		 455 for (i = 0; rw_table[i].name != NULL; i++)
456 if (rw_table[i].value == opcode)
457 break;
458
459 if (info_verbose)
460 fprintf (procfs_file ? procfs_file : stdout,
461 "%s:%d -- ", file, line);
462 switch (opcode) {
463 case PCSET:
464 fprintf (procfs_file ? procfs_file : stdout,
465 "write (PCSET, %s) %s\n",
466 arg[1] == PR_FORK ? "PR_FORK" :
467 arg[1] == PR_RLC ? "PR_RLC" :
468#ifdef PR_ASYNC
469 arg[1] == PR_ASYNC ? "PR_ASYNC" :
470#endif
471 "<unknown flag>",
472 info_verbose ? rw_table[i].desc : "");
473 break;
474#ifdef PCUNSET
475 case PCUNSET:
476#endif
477#ifdef PCRESET
478 case PCRESET:
479#endif
480 fprintf (procfs_file ? procfs_file : stdout,
481 "write (PCRESET, %s) %s\n",
482 arg[1] == PR_FORK ? "PR_FORK" :
483 arg[1] == PR_RLC ? "PR_RLC" :
484#ifdef PR_ASYNC
485 arg[1] == PR_ASYNC ? "PR_ASYNC" :
486#endif
487 "<unknown flag>",
488 info_verbose ? rw_table[i].desc : "");
489 break;
490 case PCSTRACE:
491 fprintf (procfs_file ? procfs_file : stdout,
492 "write (PCSTRACE) ");
493 proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
494 (sigset_t *) &arg[1], 0);
495 break;
496 case PCSFAULT:
497 fprintf (procfs_file ? procfs_file : stdout,
498 "write (PCSFAULT) ");
499 proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout,
500 (fltset_t *) &arg[1], 0);
501 break;
502 case PCSENTRY:
503 fprintf (procfs_file ? procfs_file : stdout,
504 "write (PCSENTRY) ");
505 proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
506 (sysset_t *) &arg[1], 0);
507 break;
508 case PCSEXIT:
509 fprintf (procfs_file ? procfs_file : stdout,
510 "write (PCSEXIT) ");
511 proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout,
512 (sysset_t *) &arg[1], 0);
513 break;
514 case PCSHOLD:
515 fprintf (procfs_file ? procfs_file : stdout,
516 "write (PCSHOLD) ");
517 proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout,
518 (sigset_t *) &arg[1], 0);
519 break;
520 case PCSSIG:
521 fprintf (procfs_file ? procfs_file : stdout,
522 "write (PCSSIG) ");
523 proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
524 arg[1] ? ((siginfo_t *) &arg[1])->si_signo
525 : 0,
526 0);
527 fprintf (procfs_file ? procfs_file : stdout, "\n");
528 break;
529 case PCRUN:
530 fprintf (procfs_file ? procfs_file : stdout,
531 "write (PCRUN) ");
532 if (arg[1] & PRCSIG)
533 fprintf (procfs_file ? procfs_file : stdout, "clearSig ");
534 if (arg[1] & PRCFAULT)
535 fprintf (procfs_file ? procfs_file : stdout, "clearFlt ");
536 if (arg[1] & PRSTEP)
537 fprintf (procfs_file ? procfs_file : stdout, "step ");
538 if (arg[1] & PRSABORT)
539 fprintf (procfs_file ? procfs_file : stdout, "syscallAbort ");
540 if (arg[1] & PRSTOP)
541 fprintf (procfs_file ? procfs_file : stdout, "stopReq ");
542
543 fprintf (procfs_file ? procfs_file : stdout, "\n");
544 break;
545 case PCKILL:
546 fprintf (procfs_file ? procfs_file : stdout,
547 "write (PCKILL) ");
548 proc_prettyfprint_signal (procfs_file ? procfs_file : stdout,
549 arg[1], 0);
550 fprintf (procfs_file ? procfs_file : stdout, "\n");
551 break;
552 default:
553 {
554 static unsigned char break_insn[] = BREAKPOINT;
555
556 if (len == sizeof (break_insn) &&
557 memcmp (arg, &break_insn, len) == 0)
558 fprintf (procfs_file ? procfs_file : stdout,
b943d152
MS		 559 "write (<breakpoint at 0x%08lx>) \n",
560 (unsigned long) lseek_offset);
0fda6bd2
JM		 561 else if (rw_table[i].name)
562 fprintf (procfs_file ? procfs_file : stdout,
563 "write (%s) %s\n",
564 rw_table[i].name,
565 info_verbose ? rw_table[i].desc : "");
566 else
567 {
568 if (lseek_offset != -1)
569 fprintf (procfs_file ? procfs_file : stdout,
b943d152
MS		 570 "write (<unknown>, %lud bytes at 0x%08lx) \n",
571 (unsigned long) len, (unsigned long) lseek_offset);
0fda6bd2
JM		 572 else
573 fprintf (procfs_file ? procfs_file : stdout,
b943d152
MS		 574 "write (<unknown>, %lud bytes) \n",
575 (unsigned long) len);
0fda6bd2
JM		 576 }
577 break;
578 }
579 }
580 if (procfs_file)
581 fflush (procfs_file);
582 }
103b3ef5 583 errno = 0;
b943d152 584 ret = write (fd, (void *) arg, len);
0fda6bd2
JM		 585 if (procfs_trace && ret != len)
586 {
587 fprintf (procfs_file ? procfs_file : stdout,
103b3ef5 588 "[write (%s) FAILED! (%s)]\n",
0fda6bd2 589 rw_table[i].name != NULL ?
103b3ef5
MS		 590 rw_table[i].name : "<unknown>",
591 safe_strerror (errno));
0fda6bd2
JM		 592 if (procfs_file)
593 fflush (procfs_file);
594 }
595
596 lseek_offset = -1;
597 return ret;
598}
599
600off_t
fba45db2 601lseek_with_trace (int fd, off_t offset, int whence, char *file, int line)
0fda6bd2
JM		 602{
603 off_t ret;
604
103b3ef5
MS		 605 prepare_to_trace ();
606 errno = 0;
0fda6bd2
JM		 607 ret = lseek (fd, offset, whence);
608 lseek_offset = ret;
103b3ef5 609 if (procfs_trace && (ret == -1 || errno != 0))
0fda6bd2 610 {
0fda6bd2 611 fprintf (procfs_file ? procfs_file : stdout,
103b3ef5
MS		 612 "[lseek (0x%08lx) FAILED! (%s)]\n",
613 (unsigned long) offset, safe_strerror (errno));
0fda6bd2
JM		 614 if (procfs_file)
615 fflush (procfs_file);
616 }
617
618 return ret;
619}
620
621#endif /* NEW_PROC_API */
622
623int
fba45db2 624open_with_trace (char *filename, int mode, char *file, int line)
0fda6bd2 625{
103b3ef5 626 int ret;
0fda6bd2 627
103b3ef5
MS		 628 prepare_to_trace ();
629 errno = 0;
630 ret = open (filename, mode);
0fda6bd2
JM		 631 if (procfs_trace)
632 {
0fda6bd2
JM		 633 if (info_verbose)
634 fprintf (procfs_file ? procfs_file : stdout,
635 "%s:%d -- ", file, line);
103b3ef5
MS		 636
637 if (errno)
638 {
639 fprintf (procfs_file ? procfs_file : stdout,
640 "[open FAILED! (%s) line %d]\\n",
641 safe_strerror (errno), line);
642 }
643 else
644 {
645 fprintf (procfs_file ? procfs_file : stdout,
646 "%d = open (%s, ", ret, filename);
647 if (mode == O_RDONLY)
648 fprintf (procfs_file ? procfs_file : stdout, "O_RDONLY) %d\n",
649 line);
650 else if (mode == O_WRONLY)
651 fprintf (procfs_file ? procfs_file : stdout, "O_WRONLY) %d\n",
652 line);
653 else if (mode == O_RDWR)
654 fprintf (procfs_file ? procfs_file : stdout, "O_RDWR) %d\n",
655 line);
656 }
0fda6bd2
JM		 657 if (procfs_file)
658 fflush (procfs_file);
659 }
660
661 return ret;
662}
663
664int
fba45db2 665close_with_trace (int fd, char *file, int line)
0fda6bd2 666{
103b3ef5 667 int ret;
0fda6bd2 668
103b3ef5
MS		 669 prepare_to_trace ();
670 errno = 0;
671 ret = close (fd);
0fda6bd2
JM		 672 if (procfs_trace)
673 {
0fda6bd2
JM		 674 if (info_verbose)
675 fprintf (procfs_file ? procfs_file : stdout,
676 "%s:%d -- ", file, line);
103b3ef5
MS		 677 if (errno)
678 fprintf (procfs_file ? procfs_file : stdout,
679 "[close FAILED! (%s)]\n", safe_strerror (errno));
680 else
681 fprintf (procfs_file ? procfs_file : stdout,
682 "%d = close (%d)\n", ret, fd);
0fda6bd2
JM		 683 if (procfs_file)
684 fflush (procfs_file);
685 }
686
687 return ret;
688}
689
103b3ef5 690pid_t
fba45db2 691wait_with_trace (int *wstat, char *file, int line)
0fda6bd2
JM		 692{
693 int ret, lstat = 0;
694
103b3ef5 695 prepare_to_trace ();
0fda6bd2
JM		 696 if (procfs_trace)
697 {
0fda6bd2
JM		 698 if (info_verbose)
699 fprintf (procfs_file ? procfs_file : stdout,
700 "%s:%d -- ", file, line);
701 fprintf (procfs_file ? procfs_file : stdout,
702 "wait (line %d) ", line);
703 if (procfs_file)
704 fflush (procfs_file);
705 }
103b3ef5 706 errno = 0;
0fda6bd2
JM		 707 ret = wait (&lstat);
708 if (procfs_trace)
709 {
103b3ef5
MS		 710 if (errno)
711 fprintf (procfs_file ? procfs_file : stdout,
712 "[wait FAILED! (%s)]\n", safe_strerror (errno));
713 else
714 fprintf (procfs_file ? procfs_file : stdout,
715 "returned pid %d, status 0x%x\n", ret, lstat);
0fda6bd2
JM		 716 if (procfs_file)
717 fflush (procfs_file);
718 }
719 if (wstat)
720 *wstat = lstat;
721
722 return ret;
723}
724
725void
fba45db2 726procfs_note (char *msg, char *file, int line)
0fda6bd2 727{
103b3ef5 728 prepare_to_trace ();
0fda6bd2
JM		 729 if (procfs_trace)
730 {
0fda6bd2
JM		 731 if (info_verbose)
732 fprintf (procfs_file ? procfs_file : stdout,
733 "%s:%d -- ", file, line);
734 fprintf (procfs_file ? procfs_file : stdout, msg);
735 if (procfs_file)
736 fflush (procfs_file);
737 }
738}
739
740void
fba45db2 741proc_prettyfprint_status (long flags, int why, int what, int thread)
0fda6bd2 742{
103b3ef5 743 prepare_to_trace ();
0fda6bd2
JM		 744 if (procfs_trace)
745 {
0fda6bd2
JM		 746 if (thread)
747 fprintf (procfs_file ? procfs_file : stdout,
748 "Thread %d: ", thread);
749
750 proc_prettyfprint_flags (procfs_file ? procfs_file : stdout,
751 flags, 0);
752
753 if (flags & (PR_STOPPED | PR_ISTOP))
754 proc_prettyfprint_why (procfs_file ? procfs_file : stdout,
755 why, what, 0);
756 if (procfs_file)
757 fflush (procfs_file);
758 }
759}
760
761
762void
fba45db2 763_initialize_proc_api (void)
0fda6bd2
JM		 764{
765 struct cmd_list_element *c;
766
767 c = add_set_cmd ("procfs-trace", no_class,
768 var_boolean, (char *) &procfs_trace,
103b3ef5 769 "Set tracing for /proc api calls.\n", &setlist);
0fda6bd2
JM		 770
771 add_show_from_set (c, &showlist);
772 c->function.sfunc = set_procfs_trace_cmd;
fa58ee11 773 c->completer = filename_completer;
0fda6bd2
JM		 774
775 c = add_set_cmd ("procfs-file", no_class, var_filename,
776 (char *) &procfs_filename,
777 "Set filename for /proc tracefile.\n", &setlist);
778
779 add_show_from_set (c, &showlist);
780 c->function.sfunc = set_procfs_file_cmd;
0fda6bd2 781}
GDB Binutils - Deliverables
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