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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 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software Foundation, | |
20 | Inc., 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" | |
8e40d292 | 30 | #include "completer.h" |
0fda6bd2 JM |
31 | |
32 | #if defined (NEW_PROC_API) | |
33 | #define _STRUCTURED_PROC 1 | |
34 | #endif | |
35 | ||
36 | #include <stdio.h> | |
37 | #include <sys/types.h> | |
38 | #include <sys/procfs.h> | |
8dd72958 | 39 | #ifdef HAVE_SYS_PROC_H |
0fda6bd2 | 40 | #include <sys/proc.h> /* for struct proc */ |
8dd72958 | 41 | #endif |
6e8cb14a | 42 | #ifdef HAVE_SYS_USER_H |
0fda6bd2 | 43 | #include <sys/user.h> /* for struct user */ |
6e8cb14a | 44 | #endif |
0fda6bd2 JM |
45 | #include <fcntl.h> /* for O_RDWR etc. */ |
46 | #include <sys/wait.h> | |
47 | ||
48 | #include "proc-utils.h" | |
49 | ||
50 | /* Much of the information used in the /proc interface, particularly for | |
51 | printing status information, is kept as tables of structures of the | |
52 | following form. These tables can be used to map numeric values to | |
53 | their symbolic names and to a string that describes their specific use. */ | |
54 | ||
55 | struct trans { | |
56 | long value; /* The numeric value */ | |
57 | char *name; /* The equivalent symbolic value */ | |
58 | char *desc; /* Short description of value */ | |
59 | }; | |
60 | ||
103b3ef5 | 61 | static int procfs_trace = 0; |
0fda6bd2 JM |
62 | static FILE *procfs_file = NULL; |
63 | static char *procfs_filename = "procfs_trace"; | |
64 | ||
103b3ef5 MS |
65 | static void |
66 | prepare_to_trace (void) | |
67 | { | |
68 | if (procfs_trace) /* if procfs tracing turned on */ | |
69 | if (procfs_file == NULL) /* if output file not yet open */ | |
70 | if (procfs_filename != NULL) /* if output filename known */ | |
71 | procfs_file = fopen (procfs_filename, "a"); /* open output file */ | |
72 | } | |
73 | ||
0fda6bd2 | 74 | static void |
fba45db2 | 75 | set_procfs_trace_cmd (char *args, int from_tty, struct cmd_list_element *c) |
0fda6bd2 JM |
76 | { |
77 | #if 0 /* not sure what I might actually need to do here, if anything */ | |
78 | if (procfs_file) | |
79 | fflush (procfs_file); | |
80 | #endif | |
81 | } | |
82 | ||
83 | static void | |
fba45db2 | 84 | set_procfs_file_cmd (char *args, int from_tty, struct cmd_list_element *c) |
0fda6bd2 JM |
85 | { |
86 | /* Just changed the filename for procfs tracing. | |
87 | If a file was already open, close it. */ | |
88 | if (procfs_file) | |
89 | fclose (procfs_file); | |
90 | procfs_file = NULL; | |
91 | } | |
92 | ||
93 | ||
94 | #ifndef NEW_PROC_API | |
95 | ||
96 | static struct trans ioctl_table[] = { | |
97 | #ifdef PIOCACINFO /* irix */ | |
98 | { PIOCACINFO, "PIOCACINFO", "get process account info" }, | |
99 | #endif | |
100 | { PIOCACTION, "PIOCACTION", "get signal action structs" }, | |
101 | #ifdef PIOCARGUMENTS /* osf */ | |
102 | { PIOCARGUMENTS, "PIOCARGUMENTS", "command line args" }, | |
103 | #endif | |
104 | #ifdef PIOCAUXV /* solaris aux vectors */ | |
105 | { PIOCAUXV, "PIOCAUXV", "get aux vector" }, | |
106 | { PIOCNAUXV, "PIOCNAUXV", "get number of aux vector entries" }, | |
107 | #endif /* AUXV */ | |
108 | { PIOCCFAULT, "PIOCCFAULT", "clear current fault" }, | |
109 | { PIOCCRED, "PIOCCRED", "get process credentials" }, | |
110 | #ifdef PIOCENEVCTRS /* irix event counters */ | |
111 | { PIOCENEVCTRS, "PIOCENEVCTRS", "acquire and start event counters" }, | |
112 | { PIOCGETEVCTRL, "PIOCGETEVCTRL", "get control info of event counters" }, | |
113 | { PIOCGETEVCTRS, "PIOCGETEVCTRS", "dump event counters" }, | |
114 | { PIOCGETPREVCTRS, "PIOCGETPREVCTRS", "dump event counters & prusage info" }, | |
115 | { PIOCRELEVCTRS, "PIOCRELEVCTRS", "release/stop event counters" }, | |
116 | { PIOCSETEVCTRL, "PIOCSETEVCTRL", "set control info of event counters" }, | |
117 | { PIOCGETPTIMER, "PIOCGETPTIMER", "get process timers" }, | |
118 | #endif /* irix event counters */ | |
119 | { PIOCGENTRY, "PIOCGENTRY", "get traced syscall entry set" }, | |
6e8cb14a | 120 | #if defined (PIOCGETPR) |
0fda6bd2 | 121 | { PIOCGETPR, "PIOCGETPR", "read struct proc" }, |
6e8cb14a AC |
122 | #endif |
123 | #if defined (PIOCGETU) | |
0fda6bd2 | 124 | { PIOCGETU, "PIOCGETU", "read user area" }, |
6e8cb14a | 125 | #endif |
0fda6bd2 JM |
126 | #if defined (PIOCGETUTK) && (defined(KERNEL) || defined(SHOW_UTT)) /* osf */ |
127 | { PIOCGETUTK, "PIOCGETUTK", "get the utask struct" }, | |
128 | #endif | |
129 | { PIOCGEXIT, "PIOCGEXIT", "get traced syscall exit set" }, | |
130 | { PIOCGFAULT, "PIOCGFAULT", "get traced fault set" }, | |
131 | #ifdef PIOCGFPCR /* osf */ | |
132 | { PIOCGFPCR, "PIOCGFPCR", "get FP control register" }, | |
133 | { PIOCSFPCR, "PIOCSFPCR", "set FP conrtol register" }, | |
134 | #endif | |
135 | { PIOCGFPREG, "PIOCGFPREG", "get floating point registers" }, | |
136 | { PIOCGHOLD, "PIOCGHOLD", "get held signal set" }, | |
137 | { PIOCGREG, "PIOCGREG", "get general registers" }, | |
138 | { PIOCGROUPS, "PIOCGROUPS", "get supplementary groups" }, | |
139 | #ifdef PIOCGSPCACT /* osf */ | |
140 | { PIOCGSPCACT, "PIOCGSPCACT", "get special action" }, | |
141 | { PIOCSSPCACT, "PIOCSSPCACT", "set special action" }, | |
142 | #endif | |
143 | { PIOCGTRACE, "PIOCGTRACE", "get traced signal set" }, | |
144 | #ifdef PIOCGWATCH /* irix watchpoints */ | |
145 | { PIOCGWATCH, "PIOCGWATCH", "get watchpoint" }, | |
146 | { PIOCSWATCH, "PIOCSWATCH", "set watchpoint" }, | |
147 | { PIOCNWATCH, "PIOCNWATCH", "get number of watchpoints" }, | |
148 | #endif /* irix watchpoints */ | |
149 | #ifdef PIOCGWIN /* solaris sparc */ | |
150 | { PIOCGWIN, "PIOCGWIN", "get gwindows_t" }, | |
151 | #endif | |
152 | #ifdef PIOCGXREG /* solaris sparc extra regs */ | |
153 | { PIOCGXREGSIZE, "PIOCXREGSIZE", "get extra register state size" }, | |
154 | { PIOCGXREG, "PIOCGXREG", "get extra register state" }, | |
155 | { PIOCSXREG, "PIOCSXREG", "set extra register state" }, | |
156 | #endif /* XREG */ | |
157 | { PIOCKILL, "PIOCKILL", "send signal" }, | |
158 | #ifdef PIOCLDT /* solaris i386 */ | |
159 | { PIOCLDT, "PIOCLDT", "get LDT" }, | |
160 | { PIOCNLDT, "PIOCNLDT", "get number of LDT entries" }, | |
161 | #endif | |
162 | #ifdef PIOCLSTATUS /* solaris and unixware */ | |
163 | { PIOCLSTATUS, "PIOCLSTATUS", "get status of all lwps" }, | |
164 | { PIOCLUSAGE, "PIOCLUSAGE", "get resource usage of all lwps" }, | |
165 | { PIOCOPENLWP, "PIOCOPENLWP", "get lwp file descriptor" }, | |
166 | { PIOCLWPIDS, "PIOCLWPIDS", "get lwp identifiers" }, | |
167 | #endif /* LWP */ | |
168 | { PIOCMAP, "PIOCMAP", "get memory map information" }, | |
169 | { PIOCMAXSIG, "PIOCMAXSIG", "get max signal number" }, | |
170 | { PIOCNICE, "PIOCNICE", "set nice priority" }, | |
171 | { PIOCNMAP, "PIOCNMAP", "get number of memory mappings" }, | |
172 | { PIOCOPENM, "PIOCOPENM", "open mapped object for reading" }, | |
173 | #ifdef PIOCOPENMOBS /* osf */ | |
174 | { PIOCOPENMOBS, "PIOCOPENMOBS", "open mapped object" }, | |
175 | #endif | |
176 | #ifdef PIOCOPENPD /* solaris */ | |
177 | { PIOCOPENPD, "PIOCOPENPD", "get page data file descriptor" }, | |
178 | #endif | |
179 | { PIOCPSINFO, "PIOCPSINFO", "get ps(1) information" }, | |
180 | { PIOCRESET, "PIOCRESET", "reset process flags" }, | |
181 | { PIOCRFORK, "PIOCRFORK", "reset inherit-on-fork flag" }, | |
182 | { PIOCRRLC, "PIOCRRLC", "reset run-on-last-close flag" }, | |
183 | { PIOCRUN, "PIOCRUN", "make process runnable" }, | |
184 | #ifdef PIOCSAVECCNTRS /* irix */ | |
185 | { PIOCSAVECCNTRS, "PIOCSAVECCNTRS", "parent gets child cntrs" }, | |
186 | #endif | |
187 | { PIOCSENTRY, "PIOCSENTRY", "set traced syscall entry set" }, | |
188 | { PIOCSET, "PIOCSET", "set process flags" }, | |
189 | { PIOCSEXIT, "PIOCSEXIT", "set traced syscall exit set" }, | |
190 | { PIOCSFAULT, "PIOCSFAULT", "set traced fault set" }, | |
191 | { PIOCSFORK, "PIOCSFORK", "set inherit-on-fork flag" }, | |
192 | { PIOCSFPREG, "PIOCSFPREG", "set floating point registers" }, | |
193 | { PIOCSHOLD, "PIOCSHOLD", "set held signal set" }, | |
194 | { PIOCSREG, "PIOCSREG", "set general registers" }, | |
195 | { PIOCSRLC, "PIOCSRLC", "set run-on-last-close flag" }, | |
196 | { PIOCSSIG, "PIOCSSIG", "set current signal" }, | |
197 | { PIOCSTATUS, "PIOCSTATUS", "get process status" }, | |
198 | { PIOCSTOP, "PIOCSTOP", "post stop request" }, | |
199 | { PIOCSTRACE, "PIOCSTRACE", "set traced signal set" }, | |
200 | { PIOCUNKILL, "PIOCUNKILL", "delete a signal" }, | |
201 | #ifdef PIOCUSAGE /* solaris */ | |
202 | { PIOCUSAGE, "PIOCUSAGE", "get resource usage" }, | |
203 | #endif | |
204 | { PIOCWSTOP, "PIOCWSTOP", "wait for process to stop" }, | |
205 | ||
206 | #ifdef PIOCNTHR /* osf threads */ | |
207 | { PIOCNTHR, "PIOCNTHR", "get thread count" }, | |
208 | { PIOCRTINH, "PIOCRTINH", "reset inherit-on-thread-creation" }, | |
209 | { PIOCSTINH, "PIOCSTINH", "set inherit-on-thread-creation" }, | |
210 | { PIOCTLIST, "PIOCTLIST", "get thread ids" }, | |
211 | { PIOCXPTH, "PIOCXPTH", "translate port to thread handle" }, | |
212 | { PIOCTRUN, "PIOCTRUN", "make thread runnable" }, | |
213 | { PIOCTSTATUS, "PIOCTSTATUS", "get thread status" }, | |
214 | { PIOCTSTOP, "PIOCTSTOP", "stop a thread" }, | |
215 | /* ... TGTRACE TSTRACE TSSIG TKILL TUNKILL TCFAULT TGFAULT TSFAULT | |
216 | TGFPREG TSFPREG TGREG TSREG TACTION TTERM TABRUN TGENTRY TSENTRY | |
217 | TGEXIT TSEXIT TSHOLD ... thread functions */ | |
218 | #endif /* osf threads */ | |
219 | { -1, NULL, NULL } | |
220 | }; | |
221 | ||
222 | int | |
fba45db2 | 223 | ioctl_with_trace (int fd, long opcode, void *ptr, char *file, int line) |
0fda6bd2 | 224 | { |
8e40d292 EZ |
225 | int i = 0; |
226 | int ret; | |
227 | int arg1; | |
0fda6bd2 | 228 | |
103b3ef5 MS |
229 | prepare_to_trace (); |
230 | ||
0fda6bd2 JM |
231 | if (procfs_trace) |
232 | { | |
0fda6bd2 JM |
233 | for (i = 0; ioctl_table[i].name != NULL; i++) |
234 | if (ioctl_table[i].value == opcode) | |
235 | break; | |
236 | ||
237 | if (info_verbose) | |
238 | fprintf (procfs_file ? procfs_file : stdout, | |
239 | "%s:%d -- ", file, line); | |
240 | switch (opcode) { | |
241 | case PIOCSET: | |
242 | arg1 = ptr ? *(long *) ptr : 0; | |
243 | fprintf (procfs_file ? procfs_file : stdout, | |
244 | "ioctl (PIOCSET, %s) %s\n", | |
245 | arg1 == PR_FORK ? "PR_FORK" : | |
246 | arg1 == PR_RLC ? "PR_RLC" : | |
247 | #ifdef PR_ASYNC | |
248 | arg1 == PR_ASYNC ? "PR_ASYNC" : | |
249 | #endif | |
250 | "<unknown flag>", | |
251 | info_verbose ? ioctl_table[i].desc : ""); | |
252 | break; | |
253 | case PIOCRESET: | |
254 | arg1 = ptr ? *(long *) ptr : 0; | |
255 | fprintf (procfs_file ? procfs_file : stdout, | |
256 | "ioctl (PIOCRESET, %s) %s\n", | |
257 | arg1 == PR_FORK ? "PR_FORK" : | |
258 | arg1 == PR_RLC ? "PR_RLC" : | |
259 | #ifdef PR_ASYNC | |
260 | arg1 == PR_ASYNC ? "PR_ASYNC" : | |
261 | #endif | |
262 | "<unknown flag>", | |
263 | info_verbose ? ioctl_table[i].desc : ""); | |
264 | break; | |
265 | case PIOCSTRACE: | |
266 | fprintf (procfs_file ? procfs_file : stdout, | |
267 | "ioctl (PIOCSTRACE) "); | |
268 | proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout, | |
269 | (sigset_t *) ptr, 0); | |
270 | break; | |
271 | case PIOCSFAULT: | |
272 | fprintf (procfs_file ? procfs_file : stdout, | |
273 | "ioctl (%s) ", | |
274 | opcode == PIOCSFAULT ? "PIOCSFAULT" : "PIOCGFAULT"); | |
275 | proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout, | |
276 | (fltset_t *) ptr, 0); | |
277 | break; | |
278 | case PIOCSENTRY: | |
279 | fprintf (procfs_file ? procfs_file : stdout, | |
280 | "ioctl (%s) ", | |
281 | opcode == PIOCSENTRY ? "PIOCSENTRY" : "PIOCGENTRY"); | |
282 | proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout, | |
283 | (sysset_t *) ptr, 0); | |
284 | break; | |
285 | case PIOCSEXIT: | |
286 | fprintf (procfs_file ? procfs_file : stdout, | |
287 | "ioctl (%s) ", | |
288 | opcode == PIOCSEXIT ? "PIOCSEXIT" : "PIOCGEXIT"); | |
289 | proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout, | |
290 | (sysset_t *) ptr, 0); | |
291 | break; | |
292 | case PIOCSHOLD: | |
293 | fprintf (procfs_file ? procfs_file : stdout, | |
294 | "ioctl (%s) ", | |
295 | opcode == PIOCSHOLD ? "PIOCSHOLD" : "PIOCGHOLD"); | |
296 | proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout, | |
297 | (sigset_t *) ptr, 0); | |
298 | break; | |
299 | case PIOCSSIG: | |
300 | fprintf (procfs_file ? procfs_file : stdout, | |
301 | "ioctl (PIOCSSIG) "); | |
302 | proc_prettyfprint_signal (procfs_file ? procfs_file : stdout, | |
303 | ptr ? ((siginfo_t *) ptr)->si_signo : 0, | |
304 | 0); | |
305 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
306 | break; | |
307 | case PIOCRUN: | |
308 | fprintf (procfs_file ? procfs_file : stdout, | |
309 | "ioctl (PIOCRUN) "); | |
310 | ||
311 | arg1 = ptr ? *(long *) ptr : 0; | |
312 | if (arg1 & PRCSIG) | |
313 | fprintf (procfs_file ? procfs_file : stdout, "clearSig "); | |
314 | if (arg1 & PRCFAULT) | |
315 | fprintf (procfs_file ? procfs_file : stdout, "clearFlt "); | |
316 | if (arg1 & PRSTRACE) | |
317 | fprintf (procfs_file ? procfs_file : stdout, "setTrace "); | |
318 | if (arg1 & PRSHOLD) | |
319 | fprintf (procfs_file ? procfs_file : stdout, "setHold "); | |
320 | if (arg1 & PRSFAULT) | |
321 | fprintf (procfs_file ? procfs_file : stdout, "setFlt "); | |
322 | if (arg1 & PRSVADDR) | |
323 | fprintf (procfs_file ? procfs_file : stdout, "setVaddr "); | |
324 | if (arg1 & PRSTEP) | |
325 | fprintf (procfs_file ? procfs_file : stdout, "step "); | |
326 | if (arg1 & PRSABORT) | |
327 | fprintf (procfs_file ? procfs_file : stdout, "syscallAbort "); | |
328 | if (arg1 & PRSTOP) | |
329 | fprintf (procfs_file ? procfs_file : stdout, "stopReq "); | |
330 | ||
331 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
332 | break; | |
333 | case PIOCKILL: | |
334 | fprintf (procfs_file ? procfs_file : stdout, | |
335 | "ioctl (PIOCKILL) "); | |
336 | proc_prettyfprint_signal (procfs_file ? procfs_file : stdout, | |
337 | ptr ? *(long *) ptr : 0, 0); | |
338 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
339 | break; | |
340 | #ifdef PIOCSSPCACT | |
341 | case PIOCSSPCACT: | |
342 | fprintf (procfs_file ? procfs_file : stdout, | |
343 | "ioctl (PIOCSSPCACT) "); | |
344 | arg1 = ptr ? *(long *) ptr : 0; | |
345 | if (arg1 & PRFS_STOPFORK) | |
346 | fprintf (procfs_file ? procfs_file : stdout, "stopFork "); | |
347 | if (arg1 & PRFS_STOPEXEC) | |
348 | fprintf (procfs_file ? procfs_file : stdout, "stopExec "); | |
349 | if (arg1 & PRFS_STOPTERM) | |
350 | fprintf (procfs_file ? procfs_file : stdout, "stopTerm "); | |
351 | if (arg1 & PRFS_STOPTCR) | |
352 | fprintf (procfs_file ? procfs_file : stdout, "stopThreadCreate "); | |
353 | if (arg1 & PRFS_STOPTTERM) | |
354 | fprintf (procfs_file ? procfs_file : stdout, "stopThreadTerm "); | |
355 | if (arg1 & PRFS_KOLC) | |
356 | fprintf (procfs_file ? procfs_file : stdout, "killOnLastClose "); | |
357 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
358 | break; | |
359 | #endif /* PIOCSSPCACT */ | |
360 | default: | |
361 | if (ioctl_table[i].name) | |
362 | fprintf (procfs_file ? procfs_file : stdout, | |
363 | "ioctl (%s) %s\n", | |
364 | ioctl_table[i].name, | |
365 | info_verbose ? ioctl_table[i].desc : ""); | |
366 | else | |
367 | fprintf (procfs_file ? procfs_file : stdout, | |
368 | "ioctl (<unknown %ld (0x%lx)) \n", opcode, opcode); | |
369 | break; | |
370 | } | |
371 | if (procfs_file) | |
372 | fflush (procfs_file); | |
373 | } | |
103b3ef5 | 374 | errno = 0; |
0fda6bd2 JM |
375 | ret = ioctl (fd, opcode, ptr); |
376 | if (procfs_trace && ret < 0) | |
377 | { | |
378 | fprintf (procfs_file ? procfs_file : stdout, | |
103b3ef5 | 379 | "[ioctl (%s) FAILED! (%s)]\n", |
0fda6bd2 | 380 | ioctl_table[i].name != NULL ? |
103b3ef5 MS |
381 | ioctl_table[i].name : "<unknown>", |
382 | safe_strerror (errno)); | |
0fda6bd2 JM |
383 | if (procfs_file) |
384 | fflush (procfs_file); | |
385 | } | |
386 | ||
387 | return ret; | |
388 | } | |
389 | ||
390 | #else /* NEW_PROC_API */ | |
391 | ||
392 | static struct trans rw_table[] = { | |
393 | #ifdef PCAGENT /* solaris */ | |
394 | { PCAGENT, "PCAGENT", "create agent lwp with regs from argument" }, | |
395 | #endif | |
396 | { PCCFAULT, "PCCFAULT", "clear current fault" }, | |
397 | #ifdef PCCSIG /* solaris */ | |
398 | { PCCSIG, "PCCSIG", "clear current signal" }, | |
399 | #endif | |
400 | { PCDSTOP, "PCDSTOP", "post stop request" }, | |
401 | { PCKILL, "PCKILL", "post a signal" }, | |
402 | { PCNICE, "PCNICE", "set nice priority" }, | |
403 | #ifdef PCREAD /* solaris */ | |
404 | { PCREAD, "PCREAD", "read from the address space" }, | |
405 | { PCWRITE, "PCWRITE", "write to the address space" }, | |
406 | #endif | |
407 | #ifdef PCRESET /* unixware */ | |
408 | { PCRESET, "PCRESET", "unset modes" }, | |
409 | #endif | |
410 | { PCRUN, "PCRUN", "make process/lwp runnable" }, | |
411 | #ifdef PCSASRS /* solaris 2.7 only */ | |
412 | { PCSASRS, "PCSASRS", "set ancillary state registers" }, | |
413 | #endif | |
414 | #ifdef PCSCRED /* solaris */ | |
415 | { PCSCRED, "PCSCRED", "set process credentials" }, | |
416 | #endif | |
417 | { PCSENTRY, "PCSENTRY", "set traced syscall entry set" }, | |
418 | { PCSET, "PCSET", "set modes" }, | |
419 | { PCSEXIT, "PCSEXIT", "set traced syscall exit set" }, | |
420 | { PCSFAULT, "PCSFAULT", "set traced fault set" }, | |
421 | { PCSFPREG, "PCSFPREG", "set floating point registers" }, | |
422 | { PCSHOLD, "PCSHOLD", "set signal mask" }, | |
423 | { PCSREG, "PCSREG", "set general registers" }, | |
424 | { PCSSIG, "PCSSIG", "set current signal" }, | |
425 | { PCSTOP, "PCSTOP", "post stop request and wait" }, | |
426 | { PCSTRACE, "PCSTRACE", "set traced signal set" }, | |
427 | #ifdef PCSVADDR /* solaris */ | |
428 | { PCSVADDR, "PCSVADDR", "set pc virtual address" }, | |
429 | #endif | |
430 | #ifdef PCSXREG /* solaris sparc only */ | |
431 | { PCSXREG, "PCSXREG", "set extra registers" }, | |
432 | #endif | |
433 | #ifdef PCTWSTOP /* solaris */ | |
434 | { PCTWSTOP, "PCTWSTOP", "wait for stop, with timeout arg" }, | |
435 | #endif | |
436 | { PCUNKILL, "PCUNKILL", "delete a pending signal" }, | |
437 | #ifdef PCUNSET /* solaris */ | |
438 | { PCUNSET, "PCUNSET", "unset modes" }, | |
439 | #endif | |
440 | #ifdef PCWATCH /* solaris */ | |
441 | { PCWATCH, "PCWATCH", "set/unset watched memory area" }, | |
442 | #endif | |
443 | { PCWSTOP, "PCWSTOP", "wait for process/lwp to stop, no timeout" }, | |
444 | { 0, NULL, NULL } | |
445 | }; | |
446 | ||
447 | static off_t lseek_offset; | |
448 | ||
449 | int | |
fba45db2 | 450 | write_with_trace (int fd, void *varg, size_t len, char *file, int line) |
0fda6bd2 JM |
451 | { |
452 | int i; | |
0fda6bd2 | 453 | int ret; |
37de36c6 | 454 | procfs_ctl_t *arg = (procfs_ctl_t *) varg; |
0fda6bd2 | 455 | |
103b3ef5 | 456 | prepare_to_trace (); |
0fda6bd2 JM |
457 | if (procfs_trace) |
458 | { | |
37de36c6 | 459 | procfs_ctl_t opcode = arg[0]; |
0fda6bd2 JM |
460 | for (i = 0; rw_table[i].name != NULL; i++) |
461 | if (rw_table[i].value == opcode) | |
462 | break; | |
463 | ||
464 | if (info_verbose) | |
465 | fprintf (procfs_file ? procfs_file : stdout, | |
466 | "%s:%d -- ", file, line); | |
467 | switch (opcode) { | |
468 | case PCSET: | |
469 | fprintf (procfs_file ? procfs_file : stdout, | |
470 | "write (PCSET, %s) %s\n", | |
471 | arg[1] == PR_FORK ? "PR_FORK" : | |
472 | arg[1] == PR_RLC ? "PR_RLC" : | |
473 | #ifdef PR_ASYNC | |
474 | arg[1] == PR_ASYNC ? "PR_ASYNC" : | |
475 | #endif | |
476 | "<unknown flag>", | |
477 | info_verbose ? rw_table[i].desc : ""); | |
478 | break; | |
479 | #ifdef PCUNSET | |
480 | case PCUNSET: | |
481 | #endif | |
482 | #ifdef PCRESET | |
37de36c6 | 483 | #if PCRESET != PCUNSET |
0fda6bd2 | 484 | case PCRESET: |
37de36c6 | 485 | #endif |
0fda6bd2 JM |
486 | #endif |
487 | fprintf (procfs_file ? procfs_file : stdout, | |
488 | "write (PCRESET, %s) %s\n", | |
489 | arg[1] == PR_FORK ? "PR_FORK" : | |
490 | arg[1] == PR_RLC ? "PR_RLC" : | |
491 | #ifdef PR_ASYNC | |
492 | arg[1] == PR_ASYNC ? "PR_ASYNC" : | |
493 | #endif | |
494 | "<unknown flag>", | |
495 | info_verbose ? rw_table[i].desc : ""); | |
496 | break; | |
497 | case PCSTRACE: | |
498 | fprintf (procfs_file ? procfs_file : stdout, | |
499 | "write (PCSTRACE) "); | |
500 | proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout, | |
501 | (sigset_t *) &arg[1], 0); | |
502 | break; | |
503 | case PCSFAULT: | |
504 | fprintf (procfs_file ? procfs_file : stdout, | |
505 | "write (PCSFAULT) "); | |
506 | proc_prettyfprint_faultset (procfs_file ? procfs_file : stdout, | |
507 | (fltset_t *) &arg[1], 0); | |
508 | break; | |
509 | case PCSENTRY: | |
510 | fprintf (procfs_file ? procfs_file : stdout, | |
511 | "write (PCSENTRY) "); | |
512 | proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout, | |
513 | (sysset_t *) &arg[1], 0); | |
514 | break; | |
515 | case PCSEXIT: | |
516 | fprintf (procfs_file ? procfs_file : stdout, | |
517 | "write (PCSEXIT) "); | |
518 | proc_prettyfprint_syscalls (procfs_file ? procfs_file : stdout, | |
519 | (sysset_t *) &arg[1], 0); | |
520 | break; | |
521 | case PCSHOLD: | |
522 | fprintf (procfs_file ? procfs_file : stdout, | |
523 | "write (PCSHOLD) "); | |
524 | proc_prettyfprint_signalset (procfs_file ? procfs_file : stdout, | |
525 | (sigset_t *) &arg[1], 0); | |
526 | break; | |
527 | case PCSSIG: | |
528 | fprintf (procfs_file ? procfs_file : stdout, | |
529 | "write (PCSSIG) "); | |
530 | proc_prettyfprint_signal (procfs_file ? procfs_file : stdout, | |
531 | arg[1] ? ((siginfo_t *) &arg[1])->si_signo | |
532 | : 0, | |
533 | 0); | |
534 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
535 | break; | |
536 | case PCRUN: | |
537 | fprintf (procfs_file ? procfs_file : stdout, | |
538 | "write (PCRUN) "); | |
539 | if (arg[1] & PRCSIG) | |
540 | fprintf (procfs_file ? procfs_file : stdout, "clearSig "); | |
541 | if (arg[1] & PRCFAULT) | |
542 | fprintf (procfs_file ? procfs_file : stdout, "clearFlt "); | |
543 | if (arg[1] & PRSTEP) | |
544 | fprintf (procfs_file ? procfs_file : stdout, "step "); | |
545 | if (arg[1] & PRSABORT) | |
546 | fprintf (procfs_file ? procfs_file : stdout, "syscallAbort "); | |
547 | if (arg[1] & PRSTOP) | |
548 | fprintf (procfs_file ? procfs_file : stdout, "stopReq "); | |
549 | ||
550 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
551 | break; | |
552 | case PCKILL: | |
553 | fprintf (procfs_file ? procfs_file : stdout, | |
554 | "write (PCKILL) "); | |
555 | proc_prettyfprint_signal (procfs_file ? procfs_file : stdout, | |
556 | arg[1], 0); | |
557 | fprintf (procfs_file ? procfs_file : stdout, "\n"); | |
558 | break; | |
559 | default: | |
560 | { | |
37de36c6 | 561 | #ifdef BREAKPOINT |
0fda6bd2 JM |
562 | static unsigned char break_insn[] = BREAKPOINT; |
563 | ||
564 | if (len == sizeof (break_insn) && | |
565 | memcmp (arg, &break_insn, len) == 0) | |
566 | fprintf (procfs_file ? procfs_file : stdout, | |
b943d152 MS |
567 | "write (<breakpoint at 0x%08lx>) \n", |
568 | (unsigned long) lseek_offset); | |
37de36c6 KB |
569 | else |
570 | #endif | |
571 | if (rw_table[i].name) | |
0fda6bd2 JM |
572 | fprintf (procfs_file ? procfs_file : stdout, |
573 | "write (%s) %s\n", | |
574 | rw_table[i].name, | |
575 | info_verbose ? rw_table[i].desc : ""); | |
576 | else | |
577 | { | |
578 | if (lseek_offset != -1) | |
579 | fprintf (procfs_file ? procfs_file : stdout, | |
b943d152 MS |
580 | "write (<unknown>, %lud bytes at 0x%08lx) \n", |
581 | (unsigned long) len, (unsigned long) lseek_offset); | |
0fda6bd2 JM |
582 | else |
583 | fprintf (procfs_file ? procfs_file : stdout, | |
b943d152 MS |
584 | "write (<unknown>, %lud bytes) \n", |
585 | (unsigned long) len); | |
0fda6bd2 JM |
586 | } |
587 | break; | |
588 | } | |
589 | } | |
590 | if (procfs_file) | |
591 | fflush (procfs_file); | |
592 | } | |
103b3ef5 | 593 | errno = 0; |
b943d152 | 594 | ret = write (fd, (void *) arg, len); |
0fda6bd2 JM |
595 | if (procfs_trace && ret != len) |
596 | { | |
597 | fprintf (procfs_file ? procfs_file : stdout, | |
103b3ef5 | 598 | "[write (%s) FAILED! (%s)]\n", |
0fda6bd2 | 599 | rw_table[i].name != NULL ? |
103b3ef5 MS |
600 | rw_table[i].name : "<unknown>", |
601 | safe_strerror (errno)); | |
0fda6bd2 JM |
602 | if (procfs_file) |
603 | fflush (procfs_file); | |
604 | } | |
605 | ||
606 | lseek_offset = -1; | |
607 | return ret; | |
608 | } | |
609 | ||
610 | off_t | |
fba45db2 | 611 | lseek_with_trace (int fd, off_t offset, int whence, char *file, int line) |
0fda6bd2 JM |
612 | { |
613 | off_t ret; | |
614 | ||
103b3ef5 MS |
615 | prepare_to_trace (); |
616 | errno = 0; | |
0fda6bd2 JM |
617 | ret = lseek (fd, offset, whence); |
618 | lseek_offset = ret; | |
103b3ef5 | 619 | if (procfs_trace && (ret == -1 || errno != 0)) |
0fda6bd2 | 620 | { |
0fda6bd2 | 621 | fprintf (procfs_file ? procfs_file : stdout, |
103b3ef5 MS |
622 | "[lseek (0x%08lx) FAILED! (%s)]\n", |
623 | (unsigned long) offset, safe_strerror (errno)); | |
0fda6bd2 JM |
624 | if (procfs_file) |
625 | fflush (procfs_file); | |
626 | } | |
627 | ||
628 | return ret; | |
629 | } | |
630 | ||
631 | #endif /* NEW_PROC_API */ | |
632 | ||
633 | int | |
fba45db2 | 634 | open_with_trace (char *filename, int mode, char *file, int line) |
0fda6bd2 | 635 | { |
103b3ef5 | 636 | int ret; |
0fda6bd2 | 637 | |
103b3ef5 MS |
638 | prepare_to_trace (); |
639 | errno = 0; | |
640 | ret = open (filename, mode); | |
0fda6bd2 JM |
641 | if (procfs_trace) |
642 | { | |
0fda6bd2 JM |
643 | if (info_verbose) |
644 | fprintf (procfs_file ? procfs_file : stdout, | |
645 | "%s:%d -- ", file, line); | |
103b3ef5 MS |
646 | |
647 | if (errno) | |
648 | { | |
649 | fprintf (procfs_file ? procfs_file : stdout, | |
650 | "[open FAILED! (%s) line %d]\\n", | |
651 | safe_strerror (errno), line); | |
652 | } | |
653 | else | |
654 | { | |
655 | fprintf (procfs_file ? procfs_file : stdout, | |
656 | "%d = open (%s, ", ret, filename); | |
657 | if (mode == O_RDONLY) | |
658 | fprintf (procfs_file ? procfs_file : stdout, "O_RDONLY) %d\n", | |
659 | line); | |
660 | else if (mode == O_WRONLY) | |
661 | fprintf (procfs_file ? procfs_file : stdout, "O_WRONLY) %d\n", | |
662 | line); | |
663 | else if (mode == O_RDWR) | |
664 | fprintf (procfs_file ? procfs_file : stdout, "O_RDWR) %d\n", | |
665 | line); | |
666 | } | |
0fda6bd2 JM |
667 | if (procfs_file) |
668 | fflush (procfs_file); | |
669 | } | |
670 | ||
671 | return ret; | |
672 | } | |
673 | ||
674 | int | |
fba45db2 | 675 | close_with_trace (int fd, char *file, int line) |
0fda6bd2 | 676 | { |
103b3ef5 | 677 | int ret; |
0fda6bd2 | 678 | |
103b3ef5 MS |
679 | prepare_to_trace (); |
680 | errno = 0; | |
681 | ret = close (fd); | |
0fda6bd2 JM |
682 | if (procfs_trace) |
683 | { | |
0fda6bd2 JM |
684 | if (info_verbose) |
685 | fprintf (procfs_file ? procfs_file : stdout, | |
686 | "%s:%d -- ", file, line); | |
103b3ef5 MS |
687 | if (errno) |
688 | fprintf (procfs_file ? procfs_file : stdout, | |
689 | "[close FAILED! (%s)]\n", safe_strerror (errno)); | |
690 | else | |
691 | fprintf (procfs_file ? procfs_file : stdout, | |
692 | "%d = close (%d)\n", ret, fd); | |
0fda6bd2 JM |
693 | if (procfs_file) |
694 | fflush (procfs_file); | |
695 | } | |
696 | ||
697 | return ret; | |
698 | } | |
699 | ||
103b3ef5 | 700 | pid_t |
fba45db2 | 701 | wait_with_trace (int *wstat, char *file, int line) |
0fda6bd2 JM |
702 | { |
703 | int ret, lstat = 0; | |
704 | ||
103b3ef5 | 705 | prepare_to_trace (); |
0fda6bd2 JM |
706 | if (procfs_trace) |
707 | { | |
0fda6bd2 JM |
708 | if (info_verbose) |
709 | fprintf (procfs_file ? procfs_file : stdout, | |
710 | "%s:%d -- ", file, line); | |
711 | fprintf (procfs_file ? procfs_file : stdout, | |
712 | "wait (line %d) ", line); | |
713 | if (procfs_file) | |
714 | fflush (procfs_file); | |
715 | } | |
103b3ef5 | 716 | errno = 0; |
0fda6bd2 JM |
717 | ret = wait (&lstat); |
718 | if (procfs_trace) | |
719 | { | |
103b3ef5 MS |
720 | if (errno) |
721 | fprintf (procfs_file ? procfs_file : stdout, | |
722 | "[wait FAILED! (%s)]\n", safe_strerror (errno)); | |
723 | else | |
724 | fprintf (procfs_file ? procfs_file : stdout, | |
725 | "returned pid %d, status 0x%x\n", ret, lstat); | |
0fda6bd2 JM |
726 | if (procfs_file) |
727 | fflush (procfs_file); | |
728 | } | |
729 | if (wstat) | |
730 | *wstat = lstat; | |
731 | ||
732 | return ret; | |
733 | } | |
734 | ||
735 | void | |
fba45db2 | 736 | procfs_note (char *msg, char *file, int line) |
0fda6bd2 | 737 | { |
103b3ef5 | 738 | prepare_to_trace (); |
0fda6bd2 JM |
739 | if (procfs_trace) |
740 | { | |
0fda6bd2 JM |
741 | if (info_verbose) |
742 | fprintf (procfs_file ? procfs_file : stdout, | |
743 | "%s:%d -- ", file, line); | |
744 | fprintf (procfs_file ? procfs_file : stdout, msg); | |
745 | if (procfs_file) | |
746 | fflush (procfs_file); | |
747 | } | |
748 | } | |
749 | ||
750 | void | |
fba45db2 | 751 | proc_prettyfprint_status (long flags, int why, int what, int thread) |
0fda6bd2 | 752 | { |
103b3ef5 | 753 | prepare_to_trace (); |
0fda6bd2 JM |
754 | if (procfs_trace) |
755 | { | |
0fda6bd2 JM |
756 | if (thread) |
757 | fprintf (procfs_file ? procfs_file : stdout, | |
758 | "Thread %d: ", thread); | |
759 | ||
760 | proc_prettyfprint_flags (procfs_file ? procfs_file : stdout, | |
761 | flags, 0); | |
762 | ||
763 | if (flags & (PR_STOPPED | PR_ISTOP)) | |
764 | proc_prettyfprint_why (procfs_file ? procfs_file : stdout, | |
765 | why, what, 0); | |
766 | if (procfs_file) | |
767 | fflush (procfs_file); | |
768 | } | |
769 | } | |
770 | ||
771 | ||
772 | void | |
fba45db2 | 773 | _initialize_proc_api (void) |
0fda6bd2 JM |
774 | { |
775 | struct cmd_list_element *c; | |
776 | ||
777 | c = add_set_cmd ("procfs-trace", no_class, | |
778 | var_boolean, (char *) &procfs_trace, | |
103b3ef5 | 779 | "Set tracing for /proc api calls.\n", &setlist); |
0fda6bd2 JM |
780 | |
781 | add_show_from_set (c, &showlist); | |
9f60d481 | 782 | set_cmd_sfunc (c, set_procfs_trace_cmd); |
5ba2abeb | 783 | set_cmd_completer (c, filename_completer); |
0fda6bd2 JM |
784 | |
785 | c = add_set_cmd ("procfs-file", no_class, var_filename, | |
786 | (char *) &procfs_filename, | |
787 | "Set filename for /proc tracefile.\n", &setlist); | |
788 | ||
789 | add_show_from_set (c, &showlist); | |
9f60d481 | 790 | set_cmd_sfunc (c, set_procfs_file_cmd); |
0fda6bd2 | 791 | } |