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f4b28491 | 1 | // systemtap translator/driver |
79bc39ab | 2 | // Copyright (C) 2005-2010 Red Hat Inc. |
f12b2552 | 3 | // Copyright (C) 2005 IBM Corp. |
77a5c1f9 | 4 | // Copyright (C) 2006 Intel Corporation. |
69c68955 FCE |
5 | // |
6 | // This file is part of systemtap, and is free software. You can | |
7 | // redistribute it and/or modify it under the terms of the GNU General | |
8 | // Public License (GPL); either version 2, or (at your option) any | |
9 | // later version. | |
2b066ec1 FCE |
10 | |
11 | #include "config.h" | |
85007c04 DB |
12 | #include "staptree.h" |
13 | #include "parse.h" | |
14 | #include "elaborate.h" | |
15 | #include "translate.h" | |
16 | #include "buildrun.h" | |
dc38c0ae | 17 | #include "session.h" |
85007c04 DB |
18 | #include "hash.h" |
19 | #include "cache.h" | |
20 | #include "util.h" | |
21 | #include "coveragedb.h" | |
22 | #include "rpm_finder.h" | |
23 | #include "task_finder.h" | |
24 | #include "csclient.h" | |
daa75206 | 25 | #include "remote.h" |
85007c04 | 26 | |
79bc39ab LB |
27 | #include <libintl.h> |
28 | #include <locale.h> | |
29 | #include "autosprintf.h" | |
30 | ||
0f5d597d | 31 | #include "stap-probe.h" |
aa4d21c0 | 32 | |
24cb178f | 33 | #include <cstdlib> |
73267b89 | 34 | |
85007c04 DB |
35 | extern "C" { |
36 | #include <glob.h> | |
37 | #include <unistd.h> | |
38 | #include <signal.h> | |
39 | #include <sys/utsname.h> | |
40 | #include <sys/times.h> | |
41 | #include <sys/time.h> | |
42 | #include <sys/stat.h> | |
43 | #include <time.h> | |
44 | #include <unistd.h> | |
45 | } | |
46 | ||
47 | using namespace std; | |
79bc39ab | 48 | using namespace gnu; |
85007c04 | 49 | |
40a50254 JS |
50 | static void |
51 | uniq_list(list<string>& l) | |
e2012a7a | 52 | { |
40a50254 JS |
53 | set<string> s; |
54 | list<string>::iterator i = l.begin(); | |
55 | while (i != l.end()) | |
56 | if (s.insert(*i).second) | |
57 | ++i; | |
58 | else | |
59 | i = l.erase(i); | |
85007c04 | 60 | } |
2dce8c42 | 61 | |
85007c04 DB |
62 | static void |
63 | printscript(systemtap_session& s, ostream& o) | |
64 | { | |
65 | if (s.listing_mode) | |
66 | { | |
67 | // We go through some heroic measures to produce clean output. | |
68 | // Record the alias and probe pointer as <name, set<derived_probe *> > | |
69 | map<string,set<derived_probe *> > probe_list; | |
6e683641 | 70 | |
85007c04 DB |
71 | // Pre-process the probe alias |
72 | for (unsigned i=0; i<s.probes.size(); i++) | |
73 | { | |
74 | if (pending_interrupts) return; | |
75 | ||
76 | derived_probe* p = s.probes[i]; | |
77 | // NB: p->basest() is not so interesting; | |
78 | // p->almost_basest() doesn't quite work, so ... | |
79 | vector<probe*> chain; | |
80 | p->collect_derivation_chain (chain); | |
81 | probe* second = (chain.size()>1) ? chain[chain.size()-2] : chain[0]; | |
82 | ||
7977a734 | 83 | if (s.verbose > 5) { |
85007c04 DB |
84 | p->printsig(cerr); cerr << endl; |
85 | cerr << "chain[" << chain.size() << "]:" << endl; | |
86 | for (unsigned j=0; j<chain.size(); j++) | |
87 | { | |
88 | cerr << " [" << j << "]: " << endl; | |
89 | cerr << "\tlocations[" << chain[j]->locations.size() << "]:" << endl; | |
90 | for (unsigned k=0; k<chain[j]->locations.size(); k++) | |
91 | { | |
92 | cerr << "\t [" << k << "]: "; | |
93 | chain[j]->locations[k]->print(cerr); | |
94 | cerr << endl; | |
95 | } | |
96 | const probe_alias *a = chain[j]->get_alias(); | |
97 | if (a) | |
98 | { | |
99 | cerr << "\taliases[" << a->alias_names.size() << "]:" << endl; | |
100 | for (unsigned k=0; k<a->alias_names.size(); k++) | |
101 | { | |
102 | cerr << "\t [" << k << "]: "; | |
103 | a->alias_names[k]->print(cerr); | |
104 | cerr << endl; | |
105 | } | |
106 | } | |
107 | } | |
7977a734 | 108 | } |
85007c04 DB |
109 | |
110 | stringstream tmps; | |
111 | const probe_alias *a = second->get_alias(); | |
112 | if (a) | |
113 | { | |
114 | assert (a->alias_names.size() >= 1); | |
115 | a->alias_names[0]->print(tmps); // XXX: [0] is arbitrary; perhaps print all | |
116 | } | |
117 | else | |
118 | { | |
119 | assert (second->locations.size() >= 1); | |
120 | second->locations[0]->print(tmps); // XXX: [0] is less arbitrary here, but still ... | |
121 | } | |
122 | string pp = tmps.str(); | |
123 | ||
124 | // Now duplicate-eliminate. An alias may have expanded to | |
125 | // several actual derived probe points, but we only want to | |
126 | // print the alias head name once. | |
127 | probe_list[pp].insert(p); | |
128 | } | |
129 | ||
130 | // print probe name and variables if there | |
131 | for (map<string, set<derived_probe *> >::iterator it=probe_list.begin(); it!=probe_list.end(); ++it) | |
132 | { | |
133 | o << it->first; // probe name or alias | |
134 | ||
135 | // Print the locals and arguments for -L mode only | |
136 | if (s.listing_mode_vars) | |
137 | { | |
138 | map<string,unsigned> var_count; // format <"name:type",count> | |
139 | map<string,unsigned> arg_count; | |
140 | list<string> var_list; | |
141 | list<string> arg_list; | |
142 | // traverse set<derived_probe *> to collect all locals and arguments | |
143 | for (set<derived_probe *>::iterator ix=it->second.begin(); ix!=it->second.end(); ++ix) | |
144 | { | |
145 | derived_probe* p = *ix; | |
146 | // collect available locals of the probe | |
147 | for (unsigned j=0; j<p->locals.size(); j++) | |
148 | { | |
149 | stringstream tmps; | |
150 | vardecl* v = p->locals[j]; | |
151 | v->printsig (tmps); | |
152 | var_count[tmps.str()]++; | |
153 | var_list.push_back(tmps.str()); | |
154 | } | |
155 | // collect arguments of the probe if there | |
156 | list<string> arg_set; | |
157 | p->getargs(arg_set); | |
158 | for (list<string>::iterator ia=arg_set.begin(); ia!=arg_set.end(); ++ia) { | |
159 | arg_count[*ia]++; | |
160 | arg_list.push_back(*ia); | |
161 | } | |
162 | } | |
163 | ||
164 | uniq_list(arg_list); | |
165 | uniq_list(var_list); | |
166 | ||
167 | // print the set-intersection only | |
168 | for (list<string>::iterator ir=var_list.begin(); ir!=var_list.end(); ++ir) | |
169 | if (var_count.find(*ir)->second == it->second.size()) // print locals | |
170 | o << " " << *ir; | |
171 | for (list<string>::iterator ir=arg_list.begin(); ir!=arg_list.end(); ++ir) | |
172 | if (arg_count.find(*ir)->second == it->second.size()) // print arguments | |
173 | o << " " << *ir; | |
174 | } | |
175 | o << endl; | |
176 | } | |
177 | } | |
178 | else | |
2dce8c42 | 179 | { |
85007c04 | 180 | if (s.embeds.size() > 0) |
79bc39ab | 181 | o << _("# global embedded code") << endl; |
85007c04 DB |
182 | for (unsigned i=0; i<s.embeds.size(); i++) |
183 | { | |
184 | if (pending_interrupts) return; | |
185 | embeddedcode* ec = s.embeds[i]; | |
186 | ec->print (o); | |
187 | o << endl; | |
188 | } | |
2dce8c42 | 189 | |
85007c04 | 190 | if (s.globals.size() > 0) |
79bc39ab | 191 | o << _("# globals") << endl; |
85007c04 DB |
192 | for (unsigned i=0; i<s.globals.size(); i++) |
193 | { | |
194 | if (pending_interrupts) return; | |
195 | vardecl* v = s.globals[i]; | |
196 | v->printsig (o); | |
197 | if (s.verbose && v->init) | |
198 | { | |
199 | o << " = "; | |
200 | v->init->print(o); | |
201 | } | |
202 | o << endl; | |
203 | } | |
204 | ||
205 | if (s.functions.size() > 0) | |
79bc39ab | 206 | o << _("# functions") << endl; |
85007c04 DB |
207 | for (map<string,functiondecl*>::iterator it = s.functions.begin(); it != s.functions.end(); it++) |
208 | { | |
209 | if (pending_interrupts) return; | |
210 | functiondecl* f = it->second; | |
211 | f->printsig (o); | |
212 | o << endl; | |
213 | if (f->locals.size() > 0) | |
79bc39ab | 214 | o << _(" # locals") << endl; |
85007c04 DB |
215 | for (unsigned j=0; j<f->locals.size(); j++) |
216 | { | |
217 | vardecl* v = f->locals[j]; | |
218 | o << " "; | |
219 | v->printsig (o); | |
220 | o << endl; | |
221 | } | |
222 | if (s.verbose) | |
223 | { | |
224 | f->body->print (o); | |
225 | o << endl; | |
226 | } | |
227 | } | |
228 | ||
229 | if (s.probes.size() > 0) | |
79bc39ab | 230 | o << _("# probes") << endl; |
85007c04 DB |
231 | for (unsigned i=0; i<s.probes.size(); i++) |
232 | { | |
233 | if (pending_interrupts) return; | |
234 | derived_probe* p = s.probes[i]; | |
235 | p->printsig (o); | |
236 | o << endl; | |
237 | if (p->locals.size() > 0) | |
79bc39ab | 238 | o << _(" # locals") << endl; |
85007c04 DB |
239 | for (unsigned j=0; j<p->locals.size(); j++) |
240 | { | |
241 | vardecl* v = p->locals[j]; | |
242 | o << " "; | |
243 | v->printsig (o); | |
244 | o << endl; | |
245 | } | |
246 | if (s.verbose) | |
247 | { | |
248 | p->body->print (o); | |
249 | o << endl; | |
250 | } | |
251 | } | |
2dce8c42 | 252 | } |
85007c04 | 253 | } |
e2012a7a | 254 | |
e2012a7a | 255 | |
85007c04 DB |
256 | int pending_interrupts; |
257 | ||
258 | extern "C" | |
259 | void handle_interrupt (int sig) | |
260 | { | |
261 | kill_stap_spawn(sig); | |
262 | pending_interrupts ++; | |
263 | if (pending_interrupts > 1) // XXX: should be configurable? time-based? | |
264 | { | |
265 | char msg[] = "Too many interrupts received, exiting.\n"; | |
266 | int rc = write (2, msg, sizeof(msg)-1); | |
267 | if (rc) {/* Do nothing; we don't care if our last gasp went out. */ ;} | |
268 | _exit (1); | |
269 | } | |
270 | } | |
271 | ||
272 | ||
273 | void | |
274 | setup_signals (sighandler_t handler) | |
275 | { | |
276 | struct sigaction sa; | |
277 | ||
278 | sa.sa_handler = handler; | |
279 | sigemptyset (&sa.sa_mask); | |
280 | if (handler != SIG_IGN) | |
281 | { | |
282 | sigaddset (&sa.sa_mask, SIGHUP); | |
283 | sigaddset (&sa.sa_mask, SIGPIPE); | |
284 | sigaddset (&sa.sa_mask, SIGINT); | |
285 | sigaddset (&sa.sa_mask, SIGTERM); | |
286 | } | |
287 | sa.sa_flags = SA_RESTART; | |
288 | ||
289 | sigaction (SIGHUP, &sa, NULL); | |
290 | sigaction (SIGPIPE, &sa, NULL); | |
291 | sigaction (SIGINT, &sa, NULL); | |
292 | sigaction (SIGTERM, &sa, NULL); | |
e2012a7a | 293 | } |
6e683641 | 294 | |
85007c04 DB |
295 | int parse_kernel_config (systemtap_session &s) |
296 | { | |
297 | // PR10702: pull config options | |
298 | string kernel_config_file = s.kernel_build_tree + "/.config"; | |
299 | struct stat st; | |
300 | int rc = stat(kernel_config_file.c_str(), &st); | |
301 | if (rc != 0) | |
76c87907 | 302 | { |
c578b859 LB |
303 | clog << autosprintf(_("Checking \"%s\" failed with error: %s"), |
304 | kernel_config_file.c_str(), strerror(errno)) << endl; | |
79bc39ab | 305 | //clog << "Checking \"" << kernel_config_file << "\" failed: " << strerror(errno) << endl; |
76c87907 LB |
306 | find_devel_rpms(s, s.kernel_build_tree.c_str()); |
307 | missing_rpm_list_print(s,"-devel"); | |
85007c04 DB |
308 | return rc; |
309 | } | |
6861e056 | 310 | |
85007c04 DB |
311 | ifstream kcf (kernel_config_file.c_str()); |
312 | string line; | |
313 | while (getline (kcf, line)) | |
314 | { | |
315 | if (!startswith(line, "CONFIG_")) continue; | |
316 | size_t off = line.find('='); | |
317 | if (off == string::npos) continue; | |
318 | string key = line.substr(0, off); | |
319 | string value = line.substr(off+1, string::npos); | |
320 | s.kernel_config[key] = value; | |
321 | } | |
322 | if (s.verbose > 2) | |
c578b859 | 323 | clog << autosprintf( _("Parsed kernel \"%s\", "), kernel_config_file.c_str()) |
79bc39ab | 324 | << autosprintf(ngettext("containing %zu tuple", "containing %zu tuples", |
c578b859 | 325 | s.kernel_config.size()), s.kernel_config.size()) << endl; |
79bc39ab | 326 | //clog << "Parsed kernel \"" << kernel_config_file << "\", number of tuples: " << s.kernel_config.size() << endl; |
85007c04 DB |
327 | |
328 | kcf.close(); | |
329 | return 0; | |
330 | } | |
331 | ||
332 | ||
333 | int parse_kernel_exports (systemtap_session &s) | |
334 | { | |
335 | string kernel_exports_file = s.kernel_build_tree + "/Module.symvers"; | |
336 | struct stat st; | |
337 | int rc = stat(kernel_exports_file.c_str(), &st); | |
338 | if (rc != 0) | |
339 | { | |
c578b859 LB |
340 | clog << autosprintf( _("Checking \"%s\" failed with error: %s"), |
341 | kernel_exports_file.c_str(), strerror(errno)) << endl | |
79bc39ab LB |
342 | //clog << "Checking \"" << kernel_exports_file << "\" failed: " << strerror(errno) << endl |
343 | << _("Ensure kernel development headers & makefiles are installed.") << endl; | |
85007c04 DB |
344 | return rc; |
345 | } | |
346 | ||
347 | ifstream kef (kernel_exports_file.c_str()); | |
348 | string line; | |
349 | while (getline (kef, line)) | |
350 | { | |
351 | vector<string> tokens; | |
352 | tokenize (line, tokens, "\t"); | |
353 | if (tokens.size() == 4 && | |
354 | tokens[2] == "vmlinux" && | |
355 | tokens[3].substr(0,13) == string("EXPORT_SYMBOL")) | |
356 | s.kernel_exports.insert (tokens[1]); | |
357 | } | |
358 | if (s.verbose > 2) | |
79bc39ab | 359 | clog << autosprintf(_("Parsed kernel \"%s\", "),kernel_exports_file.c_str()) |
c578b859 LB |
360 | << autosprintf(ngettext("which contained one vmlinux export", "which contained %zu vmlinux exports", |
361 | s.kernel_exports.size()), s.kernel_exports.size()) << endl; | |
79bc39ab | 362 | //clog << "Parsed kernel \"" << kernel_exports_file << "\", number of vmlinux exports: " << s.kernel_exports.size() << endl; |
85007c04 DB |
363 | |
364 | kef.close(); | |
365 | return 0; | |
366 | } | |
367 | ||
368 | ||
369 | static void | |
370 | create_temp_dir (systemtap_session &s) | |
371 | { | |
372 | // Create a temporary directory to build within. | |
373 | // Be careful with this, as "tmpdir" is "rm -rf"'d at the end. | |
374 | const char* tmpdir_env = getenv("TMPDIR"); | |
375 | if (! tmpdir_env) | |
376 | tmpdir_env = "/tmp"; | |
377 | ||
378 | string stapdir = "/stapXXXXXX"; | |
379 | string tmpdirt = tmpdir_env + stapdir; | |
380 | mode_t mask = umask(0); | |
381 | const char *tmpdir_name = mkdtemp((char *)tmpdirt.c_str()); | |
382 | umask(mask); | |
383 | if (! tmpdir_name) | |
384 | { | |
385 | const char* e = strerror (errno); | |
79bc39ab LB |
386 | //we can't make the directory due to the error |
387 | cerr << autosprintf(_("ERROR: cannot create termporary directory (\" %s \"): %s"), tmpdirt.c_str(), e) << endl; | |
388 | //cerr << "ERROR: cannot create temporary directory (\"" << tmpdirt << "\"): " << e << endl; | |
85007c04 DB |
389 | exit (1); // die |
390 | } | |
391 | else | |
392 | s.tmpdir = tmpdir_name; | |
393 | ||
394 | if (s.verbose>1) | |
79bc39ab LB |
395 | clog << autosprintf(_("Created termorary directory \" %s \""), s.tmpdir.c_str()) << endl; |
396 | //clog << "Created temporary directory \"" << s.tmpdir << "\"" << endl; | |
85007c04 DB |
397 | } |
398 | ||
399 | static void | |
400 | remove_temp_dir (systemtap_session &s) | |
401 | { | |
402 | if (s.tmpdir != "") | |
403 | { | |
404 | if (s.keep_tmpdir) | |
405 | // NB: the format of this message needs to match the expectations | |
406 | // of stap-server-connect.c. | |
79bc39ab LB |
407 | clog << autosprintf(_("Keeping termorary directory \" %s \""), s.tmpdir.c_str()) << endl; |
408 | //clog << "Keeping temporary directory \"" << s.tmpdir << "\"" << endl; | |
85007c04 DB |
409 | else |
410 | { | |
411 | // Ignore signals while we're deleting the temporary directory. | |
412 | setup_signals (SIG_IGN); | |
413 | ||
414 | // Remove the temporary directory. | |
415 | string cleanupcmd = "rm -rf "; | |
416 | cleanupcmd += s.tmpdir; | |
417 | ||
418 | (void) stap_system (s.verbose, cleanupcmd); | |
419 | } | |
420 | } | |
421 | } | |
422 | ||
423 | static int | |
424 | passes_0_4 (systemtap_session &s) | |
425 | { | |
426 | int rc = 0; | |
daa75206 | 427 | |
85007c04 DB |
428 | // Create a temporary directory to build within. |
429 | // Be careful with this, as "s.tmpdir" is "rm -rf"'d at the end. | |
430 | create_temp_dir (s); | |
431 | ||
432 | // Perform passes 0 through 4 using a compile server? | |
433 | if (! s.specified_servers.empty ()) | |
434 | { | |
0d1534e8 | 435 | #if HAVE_NSS |
85007c04 DB |
436 | compile_server_client client (s); |
437 | return client.passes_0_4 (); | |
0d1534e8 | 438 | #else |
79bc39ab | 439 | cerr << _("WARNING: Without NSS, using a compile-server is not supported by this version of systemtap") << endl; |
0d1534e8 | 440 | #endif |
85007c04 DB |
441 | } |
442 | ||
443 | // PASS 0: setting up | |
444 | s.verbose = s.perpass_verbose[0]; | |
0f5d597d | 445 | PROBE1(stap, pass0__start, &s); |
85007c04 | 446 | |
79bc39ab | 447 | |
85007c04 DB |
448 | // For PR1477, we used to override $PATH and $LC_ALL and other stuff |
449 | // here. We seem to use complete pathnames in | |
450 | // buildrun.cxx/tapsets.cxx now, so this is not necessary. Further, | |
451 | // it interferes with util.cxx:find_executable(), used for $PATH | |
452 | // resolution. | |
453 | ||
454 | s.kernel_base_release.assign(s.kernel_release, 0, s.kernel_release.find('-')); | |
455 | ||
456 | // arguments parsed; get down to business | |
457 | if (s.verbose > 1) | |
458 | { | |
459 | s.version (); | |
79bc39ab LB |
460 | clog << autosprintf( _("Session arch: %s release: %s"), s.architecture.c_str(), s.kernel_release.c_str()) << endl; |
461 | //clog << "Session arch: " << s.architecture | |
462 | //<< " release: " << s.kernel_release | |
463 | //<< endl; | |
85007c04 DB |
464 | } |
465 | ||
466 | // Now that no further changes to s.kernel_build_tree can occur, let's use it. | |
79bc39ab LB |
467 | if (parse_kernel_config (s) != 0) |
468 | exit (1); | |
469 | ||
470 | if (parse_kernel_exports (s) != 0) | |
471 | exit (1); | |
85007c04 DB |
472 | |
473 | ||
474 | // Create the name of the C source file within the temporary | |
475 | // directory. | |
476 | s.translated_source = string(s.tmpdir) + "/" + s.module_name + ".c"; | |
477 | ||
478 | // Set up our handler to catch routine signals, to allow clean | |
479 | // and reasonably timely exit. | |
480 | setup_signals(&handle_interrupt); | |
481 | ||
0f5d597d | 482 | PROBE1(stap, pass0__end, &s); |
85007c04 DB |
483 | |
484 | struct tms tms_before; | |
485 | times (& tms_before); | |
486 | struct timeval tv_before; | |
487 | gettimeofday (&tv_before, NULL); | |
488 | ||
489 | // PASS 1a: PARSING USER SCRIPT | |
0f5d597d | 490 | PROBE1(stap, pass1a__start, &s); |
85007c04 DB |
491 | |
492 | struct stat user_file_stat; | |
493 | int user_file_stat_rc = -1; | |
494 | ||
495 | if (s.script_file == "-") | |
496 | { | |
497 | s.user_file = parse (s, cin, s.guru_mode); | |
498 | user_file_stat_rc = fstat (STDIN_FILENO, & user_file_stat); | |
499 | } | |
500 | else if (s.script_file != "") | |
501 | { | |
502 | s.user_file = parse (s, s.script_file, s.guru_mode); | |
503 | user_file_stat_rc = stat (s.script_file.c_str(), & user_file_stat); | |
504 | } | |
505 | else | |
506 | { | |
507 | istringstream ii (s.cmdline_script); | |
508 | s.user_file = parse (s, ii, s.guru_mode); | |
509 | } | |
510 | if (s.user_file == 0) | |
79bc39ab LB |
511 | // syntax errors already printed |
512 | rc ++; | |
85007c04 DB |
513 | |
514 | // Construct arch / kernel-versioning search path | |
515 | vector<string> version_suffixes; | |
516 | string kvr = s.kernel_release; | |
517 | const string& arch = s.architecture; | |
518 | // add full kernel-version-release (2.6.NN-FOOBAR) + arch | |
519 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
520 | version_suffixes.push_back ("/" + kvr); | |
521 | // add kernel version (2.6.NN) + arch | |
522 | if (kvr != s.kernel_base_release) { | |
523 | kvr = s.kernel_base_release; | |
524 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
525 | version_suffixes.push_back ("/" + kvr); | |
526 | } | |
527 | // add kernel family (2.6) + arch | |
528 | string::size_type dot1_index = kvr.find ('.'); | |
529 | string::size_type dot2_index = kvr.rfind ('.'); | |
530 | while (dot2_index > dot1_index && dot2_index != string::npos) { | |
531 | kvr.erase(dot2_index); | |
532 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
533 | version_suffixes.push_back ("/" + kvr); | |
534 | dot2_index = kvr.rfind ('.'); | |
535 | } | |
536 | // add architecture search path | |
537 | version_suffixes.push_back("/" + arch); | |
538 | // add empty string as last element | |
539 | version_suffixes.push_back (""); | |
540 | ||
541 | // PASS 1b: PARSING LIBRARY SCRIPTS | |
0f5d597d | 542 | PROBE1(stap, pass1b__start, &s); |
85007c04 | 543 | |
ad7c8e43 FCE |
544 | set<pair<dev_t, ino_t> > seen_library_files; |
545 | ||
85007c04 DB |
546 | for (unsigned i=0; i<s.include_path.size(); i++) |
547 | { | |
548 | // now iterate upon it | |
549 | for (unsigned k=0; k<version_suffixes.size(); k++) | |
550 | { | |
551 | glob_t globbuf; | |
552 | string dir = s.include_path[i] + version_suffixes[k] + "/*.stp"; | |
553 | int r = glob(dir.c_str (), 0, NULL, & globbuf); | |
554 | if (r == GLOB_NOSPACE || r == GLOB_ABORTED) | |
79bc39ab LB |
555 | rc ++; |
556 | // GLOB_NOMATCH is acceptable | |
85007c04 | 557 | |
ad7c8e43 | 558 | unsigned prev_s_library_files = s.library_files.size(); |
85007c04 DB |
559 | |
560 | for (unsigned j=0; j<globbuf.gl_pathc; j++) | |
561 | { | |
562 | if (pending_interrupts) | |
563 | break; | |
564 | ||
85007c04 DB |
565 | struct stat tapset_file_stat; |
566 | int stat_rc = stat (globbuf.gl_pathv[j], & tapset_file_stat); | |
567 | if (stat_rc == 0 && user_file_stat_rc == 0 && | |
568 | user_file_stat.st_dev == tapset_file_stat.st_dev && | |
569 | user_file_stat.st_ino == tapset_file_stat.st_ino) | |
570 | { | |
79bc39ab LB |
571 | cerr |
572 | << autosprintf(_("usage error: tapset file '%s' cannot be run directly as a session script."), | |
573 | globbuf.gl_pathv[j]) << endl; | |
574 | //cerr << "usage error: tapset file '" << globbuf.gl_pathv[j] | |
575 | // << "' cannot be run directly as a session script." << endl; | |
85007c04 DB |
576 | rc ++; |
577 | } | |
578 | ||
ad7c8e43 FCE |
579 | // PR11949: duplicate-eliminate tapset files |
580 | if (stat_rc == 0) | |
581 | { | |
582 | pair<dev_t,ino_t> here = make_pair(tapset_file_stat.st_dev, | |
583 | tapset_file_stat.st_ino); | |
584 | if (seen_library_files.find(here) != seen_library_files.end()) | |
585 | continue; | |
586 | seen_library_files.insert (here); | |
587 | } | |
588 | ||
589 | // XXX: privilege only for /usr/share/systemtap? | |
590 | stapfile* f = parse (s, globbuf.gl_pathv[j], true); | |
591 | if (f == 0 && !s.suppress_warnings) | |
592 | s.print_warning("tapset '" + string(globbuf.gl_pathv[j]) | |
593 | + "' has errors, and will be skipped."); | |
594 | else | |
595 | s.library_files.push_back (f); | |
85007c04 DB |
596 | } |
597 | ||
ad7c8e43 FCE |
598 | unsigned next_s_library_files = s.library_files.size(); |
599 | if (s.verbose>1 && globbuf.gl_pathc > 0) | |
79bc39ab LB |
600 | // search a directory, report a number of found with number of processed |
601 | clog << autosprintf(_("Searched: \" %s \", found: %zu, processed: %u"), | |
c578b859 | 602 | dir.c_str(), globbuf.gl_pathc, (next_s_library_files-prev_s_library_files)) << endl; |
79bc39ab LB |
603 | //clog << "Searched \"" << dir << "\"," |
604 | // << " found " << globbuf.gl_pathc | |
605 | // << " processed " << (next_s_library_files-prev_s_library_files) << endl; | |
ad7c8e43 | 606 | |
85007c04 DB |
607 | globfree (& globbuf); |
608 | } | |
609 | } | |
610 | if (s.num_errors()) | |
79bc39ab | 611 | rc ++; |
85007c04 DB |
612 | |
613 | if (rc == 0 && s.last_pass == 1) | |
614 | { | |
79bc39ab | 615 | cout << _("# parse tree dump") << endl; |
85007c04 DB |
616 | s.user_file->print (cout); |
617 | cout << endl; | |
618 | if (s.verbose) | |
619 | for (unsigned i=0; i<s.library_files.size(); i++) | |
620 | { | |
621 | s.library_files[i]->print (cout); | |
622 | cout << endl; | |
623 | } | |
624 | } | |
625 | ||
626 | struct tms tms_after; | |
627 | times (& tms_after); | |
628 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
629 | struct timeval tv_after; | |
630 | gettimeofday (&tv_after, NULL); | |
631 | ||
632 | #define TIMESPRINT "in " << \ | |
633 | (tms_after.tms_cutime + tms_after.tms_utime \ | |
634 | - tms_before.tms_cutime - tms_before.tms_utime) * 1000 / (_sc_clk_tck) << "usr/" \ | |
635 | << (tms_after.tms_cstime + tms_after.tms_stime \ | |
636 | - tms_before.tms_cstime - tms_before.tms_stime) * 1000 / (_sc_clk_tck) << "sys/" \ | |
637 | << ((tv_after.tv_sec - tv_before.tv_sec) * 1000 + \ | |
638 | ((long)tv_after.tv_usec - (long)tv_before.tv_usec) / 1000) << "real ms." | |
639 | ||
640 | // syntax errors, if any, are already printed | |
641 | if (s.verbose) | |
642 | { | |
643 | clog << "Pass 1: parsed user script and " | |
644 | << s.library_files.size() | |
645 | << " library script(s) " | |
646 | << getmemusage() | |
647 | << TIMESPRINT | |
648 | << endl; | |
649 | } | |
650 | ||
651 | if (rc && !s.listing_mode) | |
79bc39ab LB |
652 | cerr << _("Pass 1: parse failed. Try again with another '--vp 1' option.") << endl; |
653 | //cerr << "Pass 1: parse failed. " | |
654 | // << "Try again with another '--vp 1' option." | |
655 | // << endl; | |
85007c04 | 656 | |
0f5d597d | 657 | PROBE1(stap, pass1__end, &s); |
85007c04 DB |
658 | |
659 | if (rc || s.last_pass == 1 || pending_interrupts) return rc; | |
660 | ||
661 | times (& tms_before); | |
662 | gettimeofday (&tv_before, NULL); | |
663 | ||
664 | // PASS 2: ELABORATION | |
665 | s.verbose = s.perpass_verbose[1]; | |
0f5d597d | 666 | PROBE1(stap, pass2__start, &s); |
85007c04 DB |
667 | rc = semantic_pass (s); |
668 | ||
669 | if (s.listing_mode || (rc == 0 && s.last_pass == 2)) | |
670 | printscript(s, cout); | |
671 | ||
672 | times (& tms_after); | |
673 | gettimeofday (&tv_after, NULL); | |
674 | ||
675 | if (s.verbose) clog << "Pass 2: analyzed script: " | |
676 | << s.probes.size() << " probe(s), " | |
677 | << s.functions.size() << " function(s), " | |
678 | << s.embeds.size() << " embed(s), " | |
679 | << s.globals.size() << " global(s) " | |
680 | << getmemusage() | |
681 | << TIMESPRINT | |
682 | << endl; | |
683 | ||
79bc39ab LB |
684 | if (rc && !s.listing_mode) |
685 | cerr << _("Pass 2: analysis failed. Try agaain with another '--vp 01' option.") << endl; | |
686 | //cerr << "Pass 2: analysis failed. " | |
687 | // << "Try again with another '--vp 01' option." | |
688 | // << endl; | |
85007c04 DB |
689 | |
690 | /* Print out list of missing files. XXX should be "if (rc)" ? */ | |
76c87907 | 691 | missing_rpm_list_print(s,"-debuginfo"); |
85007c04 | 692 | |
0f5d597d | 693 | PROBE1(stap, pass2__end, &s); |
85007c04 DB |
694 | |
695 | if (rc || s.listing_mode || s.last_pass == 2 || pending_interrupts) return rc; | |
696 | ||
d13bcfd8 JS |
697 | rc = prepare_translate_pass (s); |
698 | if (rc || pending_interrupts) return rc; | |
699 | ||
85007c04 DB |
700 | // Generate hash. There isn't any point in generating the hash |
701 | // if last_pass is 2, since we'll quit before using it. | |
702 | if (s.use_script_cache) | |
703 | { | |
704 | ostringstream o; | |
705 | unsigned saved_verbose; | |
706 | ||
707 | { | |
708 | // Make sure we're in verbose mode, so that printscript() | |
709 | // will output function/probe bodies. | |
710 | saved_verbose = s.verbose; | |
711 | s.verbose = 3; | |
712 | printscript(s, o); // Print script to 'o' | |
713 | s.verbose = saved_verbose; | |
714 | } | |
715 | ||
716 | // Generate hash | |
717 | find_script_hash (s, o.str()); | |
718 | ||
719 | // See if we can use cached source/module. | |
720 | if (get_script_from_cache(s)) | |
721 | { | |
722 | // If our last pass isn't 5, we're done (since passes 3 and | |
723 | // 4 just generate what we just pulled out of the cache). | |
724 | if (s.last_pass < 5 || pending_interrupts) return rc; | |
725 | ||
726 | // Short-circuit to pass 5. | |
727 | return 0; | |
728 | } | |
729 | } | |
730 | ||
731 | // PASS 3: TRANSLATION | |
732 | s.verbose = s.perpass_verbose[2]; | |
733 | times (& tms_before); | |
734 | gettimeofday (&tv_before, NULL); | |
0f5d597d | 735 | PROBE1(stap, pass3__start, &s); |
85007c04 DB |
736 | |
737 | rc = translate_pass (s); | |
79bc39ab LB |
738 | |
739 | if (rc == 0 && s.last_pass == 3) | |
85007c04 DB |
740 | { |
741 | ifstream i (s.translated_source.c_str()); | |
742 | cout << i.rdbuf(); | |
743 | } | |
744 | ||
745 | times (& tms_after); | |
746 | gettimeofday (&tv_after, NULL); | |
747 | ||
79bc39ab LB |
748 | if (s.verbose) |
749 | clog << "Pass 3: translated to C into \"" | |
750 | << s.translated_source | |
751 | << "\" " | |
752 | << getmemusage() | |
753 | << TIMESPRINT | |
85007c04 DB |
754 | << endl; |
755 | ||
79bc39ab LB |
756 | if (rc) |
757 | cerr << _("Pass 3: translation failed. Try again with another '--vp 001' option.") << endl; | |
758 | //cerr << "Pass 3: translation failed. " | |
759 | // << "Try again with another '--vp 001' option." | |
760 | // << endl; | |
761 | ||
0f5d597d | 762 | PROBE1(stap, pass3__end, &s); |
85007c04 DB |
763 | |
764 | if (rc || s.last_pass == 3 || pending_interrupts) return rc; | |
765 | ||
766 | // PASS 4: COMPILATION | |
767 | s.verbose = s.perpass_verbose[3]; | |
768 | times (& tms_before); | |
769 | gettimeofday (&tv_before, NULL); | |
0f5d597d | 770 | PROBE1(stap, pass4__start, &s); |
85007c04 DB |
771 | |
772 | if (s.use_cache) | |
773 | { | |
774 | find_stapconf_hash(s); | |
775 | get_stapconf_from_cache(s); | |
776 | } | |
777 | rc = compile_pass (s); | |
79bc39ab LB |
778 | |
779 | if (rc == 0 && s.last_pass == 4) | |
85007c04 DB |
780 | { |
781 | cout << ((s.hash_path == "") ? (s.module_name + string(".ko")) : s.hash_path); | |
782 | cout << endl; | |
783 | } | |
784 | ||
785 | times (& tms_after); | |
786 | gettimeofday (&tv_after, NULL); | |
787 | ||
788 | if (s.verbose) clog << "Pass 4: compiled C into \"" | |
789 | << s.module_name << ".ko" | |
790 | << "\" " | |
791 | << TIMESPRINT | |
792 | << endl; | |
793 | ||
79bc39ab LB |
794 | if (rc) |
795 | cerr << _("Pass 4: compilation failed. Try again with another '--vp 0001' option.") << endl; | |
796 | //cerr << "Pass 4: compilation failed. " | |
797 | // << "Try again with another '--vp 0001' option." | |
798 | // << endl; | |
85007c04 DB |
799 | else |
800 | { | |
801 | // Update cache. Cache cleaning is kicked off at the beginning of this function. | |
802 | if (s.use_script_cache) | |
803 | add_script_to_cache(s); | |
804 | if (s.use_cache) | |
805 | add_stapconf_to_cache(s); | |
806 | ||
807 | // We may need to save the module in $CWD if the cache was | |
808 | // inaccessible for some reason. | |
809 | if (! s.use_script_cache && s.last_pass == 4) | |
810 | s.save_module = true; | |
811 | ||
812 | // Copy module to the current directory. | |
813 | if (s.save_module && !pending_interrupts) | |
814 | { | |
815 | string module_src_path = s.tmpdir + "/" + s.module_name + ".ko"; | |
816 | string module_dest_path = s.module_name + ".ko"; | |
817 | copy_file(module_src_path, module_dest_path, s.verbose > 1); | |
818 | } | |
819 | } | |
820 | ||
0f5d597d | 821 | PROBE1(stap, pass4__end, &s); |
85007c04 DB |
822 | |
823 | return rc; | |
824 | } | |
825 | ||
826 | static int | |
ebff2ed0 | 827 | pass_5 (systemtap_session &s, vector<remote*> targets) |
85007c04 DB |
828 | { |
829 | // PASS 5: RUN | |
830 | s.verbose = s.perpass_verbose[4]; | |
831 | struct tms tms_before; | |
832 | times (& tms_before); | |
833 | struct timeval tv_before; | |
834 | gettimeofday (&tv_before, NULL); | |
835 | // NB: this message is a judgement call. The other passes don't emit | |
836 | // a "hello, I'm starting" message, but then the others aren't interactive | |
837 | // and don't take an indefinite amount of time. | |
0f5d597d | 838 | PROBE1(stap, pass5__start, &s); |
79bc39ab | 839 | if (s.verbose) clog << _("Pass 5: starting run.") << endl; |
94a8b578 | 840 | int rc = 0; // XXX with multiple targets, need to deal with partial failure |
ebff2ed0 JS |
841 | for (unsigned i = 0; i < targets.size() && !pending_interrupts; ++i) |
842 | rc |= targets[i]->start(); | |
843 | for (unsigned i = 0; i < targets.size(); ++i) | |
844 | rc |= targets[i]->finish(); | |
85007c04 DB |
845 | struct tms tms_after; |
846 | times (& tms_after); | |
847 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
848 | struct timeval tv_after; | |
849 | gettimeofday (&tv_after, NULL); | |
850 | if (s.verbose) clog << "Pass 5: run completed " | |
851 | << TIMESPRINT | |
852 | << endl; | |
853 | ||
854 | if (rc) | |
79bc39ab LB |
855 | cerr << _("Pass 5: run failed. Try again with another '--vp 00001' option.") << endl; |
856 | //cerr << "Pass 5: run failed. " | |
857 | // << "Try again with another '--vp 00001' option." | |
858 | // << endl; | |
85007c04 DB |
859 | else |
860 | // Interrupting pass-5 to quit is normal, so we want an EXIT_SUCCESS below. | |
861 | pending_interrupts = 0; | |
862 | ||
0f5d597d | 863 | PROBE1(stap, pass5__end, &s); |
85007c04 DB |
864 | |
865 | return rc; | |
866 | } | |
867 | ||
868 | static void | |
869 | cleanup (systemtap_session &s, int rc) | |
870 | { | |
871 | // PASS 6: cleaning up | |
0f5d597d | 872 | PROBE1(stap, pass6__start, &s); |
85007c04 | 873 | |
ebff2ed0 JS |
874 | for (systemtap_session::session_map_t::iterator it = s.subsessions.begin(); |
875 | it != s.subsessions.end(); ++it) | |
876 | cleanup (*it->second, rc); | |
877 | ||
85007c04 DB |
878 | // update the database information |
879 | if (!rc && s.tapset_compile_coverage && !pending_interrupts) { | |
880 | #ifdef HAVE_LIBSQLITE3 | |
881 | update_coverage_db(s); | |
882 | #else | |
79bc39ab | 883 | cerr << _("Coverage database not available without libsqlite3") << endl; |
85007c04 DB |
884 | #endif |
885 | } | |
886 | ||
887 | // Clean up temporary directory. Obviously, be careful with this. | |
888 | remove_temp_dir (s); | |
889 | ||
0f5d597d | 890 | PROBE1(stap, pass6__end, &s); |
85007c04 DB |
891 | } |
892 | ||
893 | int | |
894 | main (int argc, char * const argv []) | |
895 | { | |
896 | // Initialize defaults. | |
897 | systemtap_session s; | |
898 | ||
79bc39ab LB |
899 | setlocale (LC_ALL, ""); |
900 | bindtextdomain (PACKAGE, LOCALEDIR); | |
901 | textdomain (PACKAGE); | |
902 | ||
85007c04 DB |
903 | // Process the command line. |
904 | int rc = s.parse_cmdline (argc, argv); | |
905 | if (rc != 0) | |
906 | exit (rc); | |
907 | ||
908 | // Check for options conflicts. Exits if errors are detected. | |
909 | s.check_options (argc, argv); | |
910 | ||
911 | // If requested, query server status. This is independent of other tasks. | |
912 | query_server_status (s); | |
913 | ||
c77af0d0 DB |
914 | // If requested, manage trust of servers. This is independent of other tasks. |
915 | manage_server_trust (s); | |
916 | ||
85007c04 DB |
917 | // Run the passes only if a script has been specified. The requirement for |
918 | // a script has already been checked in systemtap_session::check_options. | |
919 | if (s.have_script) | |
920 | { | |
ebff2ed0 JS |
921 | vector<remote*> targets; |
922 | if (s.remote_uris.empty()) | |
923 | { | |
924 | remote* target = remote::create(s, "direct"); | |
925 | if (target) | |
926 | targets.push_back(target); | |
927 | else | |
928 | rc = 1; | |
929 | } | |
daa75206 | 930 | else |
ebff2ed0 JS |
931 | for (unsigned i = 0; i < s.remote_uris.size(); ++i) |
932 | { | |
933 | remote *target = remote::create(s, s.remote_uris[i]); | |
934 | if (target) | |
935 | targets.push_back(target); | |
936 | else | |
937 | { | |
938 | rc = 1; | |
939 | break; | |
940 | } | |
941 | } | |
942 | ||
943 | // Run passes 0-4 for each unique session, | |
944 | // either locally or using a compile-server. | |
daa75206 | 945 | if (rc == 0) |
ebff2ed0 JS |
946 | { |
947 | set<systemtap_session*> sessions; | |
948 | for (unsigned i = 0; i < targets.size(); ++i) | |
949 | sessions.insert(targets[i]->get_session()); | |
950 | for (set<systemtap_session*>::iterator it = sessions.begin(); | |
951 | it != sessions.end(); ++it) | |
79bc39ab LB |
952 | if ((rc = passes_0_4 (**it))) |
953 | break; | |
ebff2ed0 | 954 | } |
85007c04 DB |
955 | |
956 | // Run pass 5, if requested | |
957 | if (rc == 0 && s.last_pass >= 5 && ! pending_interrupts) | |
ebff2ed0 JS |
958 | rc = pass_5 (s, targets); |
959 | ||
960 | for (unsigned i = 0; i < targets.size(); ++i) | |
961 | delete targets[i]; | |
85007c04 DB |
962 | } |
963 | ||
964 | // Pass 6. Cleanup | |
965 | cleanup (s, rc); | |
966 | ||
967 | return (rc||pending_interrupts) ? EXIT_FAILURE : EXIT_SUCCESS; | |
968 | } | |
969 | ||
970 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |