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f4b28491 | 1 | // systemtap translator/driver |
4e78c716 | 2 | // Copyright (C) 2005-2014 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" |
b82d77b4 | 26 | #include "tapsets.h" |
05fb3e0c | 27 | #include "setupdwfl.h" |
85007c04 | 28 | |
52c2652f | 29 | #if ENABLE_NLS |
79bc39ab LB |
30 | #include <libintl.h> |
31 | #include <locale.h> | |
52c2652f | 32 | #endif |
79bc39ab | 33 | |
0f5d597d | 34 | #include "stap-probe.h" |
aa4d21c0 | 35 | |
24cb178f | 36 | #include <cstdlib> |
73267b89 | 37 | |
85007c04 DB |
38 | extern "C" { |
39 | #include <glob.h> | |
40 | #include <unistd.h> | |
41 | #include <signal.h> | |
42 | #include <sys/utsname.h> | |
43 | #include <sys/times.h> | |
44 | #include <sys/time.h> | |
45 | #include <sys/stat.h> | |
46 | #include <time.h> | |
47 | #include <unistd.h> | |
222e16ed | 48 | #include <wordexp.h> |
85007c04 DB |
49 | } |
50 | ||
51 | using namespace std; | |
52 | ||
40a50254 JS |
53 | static void |
54 | uniq_list(list<string>& l) | |
e2012a7a | 55 | { |
40a50254 JS |
56 | set<string> s; |
57 | list<string>::iterator i = l.begin(); | |
58 | while (i != l.end()) | |
59 | if (s.insert(*i).second) | |
60 | ++i; | |
61 | else | |
62 | i = l.erase(i); | |
85007c04 | 63 | } |
2dce8c42 | 64 | |
85007c04 DB |
65 | static void |
66 | printscript(systemtap_session& s, ostream& o) | |
67 | { | |
bba368c5 JL |
68 | if (s.dump_mode == systemtap_session::dump_matched_probes || |
69 | s.dump_mode == systemtap_session::dump_matched_probes_vars) | |
85007c04 DB |
70 | { |
71 | // We go through some heroic measures to produce clean output. | |
72 | // Record the alias and probe pointer as <name, set<derived_probe *> > | |
73 | map<string,set<derived_probe *> > probe_list; | |
6e683641 | 74 | |
85007c04 DB |
75 | // Pre-process the probe alias |
76 | for (unsigned i=0; i<s.probes.size(); i++) | |
77 | { | |
e19ebcf7 | 78 | assert_no_interrupts(); |
85007c04 DB |
79 | |
80 | derived_probe* p = s.probes[i]; | |
ede0102c JS |
81 | vector<probe*> chain; |
82 | p->collect_derivation_chain (chain); | |
83 | ||
8159bf55 | 84 | if (s.verbose > 2) { |
8159bf55 FCE |
85 | p->printsig(cerr); cerr << endl; |
86 | cerr << "chain[" << chain.size() << "]:" << endl; | |
87 | for (unsigned j=0; j<chain.size(); j++) | |
88 | { | |
89 | cerr << " [" << j << "]: " << endl; | |
90 | cerr << "\tlocations[" << chain[j]->locations.size() << "]:" << endl; | |
91 | for (unsigned k=0; k<chain[j]->locations.size(); k++) | |
92 | { | |
93 | cerr << "\t [" << k << "]: "; | |
94 | chain[j]->locations[k]->print(cerr); | |
95 | cerr << endl; | |
96 | } | |
97 | const probe_alias *a = chain[j]->get_alias(); | |
98 | if (a) | |
99 | { | |
100 | cerr << "\taliases[" << a->alias_names.size() << "]:" << endl; | |
101 | for (unsigned k=0; k<a->alias_names.size(); k++) | |
102 | { | |
103 | cerr << "\t [" << k << "]: "; | |
104 | a->alias_names[k]->print(cerr); | |
105 | cerr << endl; | |
106 | } | |
107 | } | |
108 | } | |
7977a734 | 109 | } |
eb55dce6 JS |
110 | |
111 | const string& pp = lex_cast(*p->script_location()); | |
112 | ||
113 | // PR16730: We should only list probes that can be traced back to the | |
114 | // user's spec, not any auxiliary probes in the tapsets. | |
ba48c27a AJ |
115 | // Also, do not want to the probes that are from the additional |
116 | // scripts (-E SCRIPT) to be listed. | |
1ee0d3ba JL |
117 | if (!s.is_primary_probe(p)) |
118 | continue; | |
85007c04 DB |
119 | |
120 | // Now duplicate-eliminate. An alias may have expanded to | |
121 | // several actual derived probe points, but we only want to | |
122 | // print the alias head name once. | |
123 | probe_list[pp].insert(p); | |
124 | } | |
125 | ||
126 | // print probe name and variables if there | |
127 | for (map<string, set<derived_probe *> >::iterator it=probe_list.begin(); it!=probe_list.end(); ++it) | |
128 | { | |
129 | o << it->first; // probe name or alias | |
130 | ||
131 | // Print the locals and arguments for -L mode only | |
bba368c5 | 132 | if (s.dump_mode == systemtap_session::dump_matched_probes_vars) |
85007c04 DB |
133 | { |
134 | map<string,unsigned> var_count; // format <"name:type",count> | |
135 | map<string,unsigned> arg_count; | |
136 | list<string> var_list; | |
137 | list<string> arg_list; | |
138 | // traverse set<derived_probe *> to collect all locals and arguments | |
139 | for (set<derived_probe *>::iterator ix=it->second.begin(); ix!=it->second.end(); ++ix) | |
140 | { | |
141 | derived_probe* p = *ix; | |
142 | // collect available locals of the probe | |
143 | for (unsigned j=0; j<p->locals.size(); j++) | |
144 | { | |
145 | stringstream tmps; | |
146 | vardecl* v = p->locals[j]; | |
147 | v->printsig (tmps); | |
148 | var_count[tmps.str()]++; | |
149 | var_list.push_back(tmps.str()); | |
150 | } | |
151 | // collect arguments of the probe if there | |
152 | list<string> arg_set; | |
153 | p->getargs(arg_set); | |
154 | for (list<string>::iterator ia=arg_set.begin(); ia!=arg_set.end(); ++ia) { | |
155 | arg_count[*ia]++; | |
156 | arg_list.push_back(*ia); | |
157 | } | |
158 | } | |
159 | ||
160 | uniq_list(arg_list); | |
161 | uniq_list(var_list); | |
162 | ||
163 | // print the set-intersection only | |
164 | for (list<string>::iterator ir=var_list.begin(); ir!=var_list.end(); ++ir) | |
165 | if (var_count.find(*ir)->second == it->second.size()) // print locals | |
166 | o << " " << *ir; | |
167 | for (list<string>::iterator ir=arg_list.begin(); ir!=arg_list.end(); ++ir) | |
168 | if (arg_count.find(*ir)->second == it->second.size()) // print arguments | |
169 | o << " " << *ir; | |
170 | } | |
171 | o << endl; | |
172 | } | |
173 | } | |
174 | else | |
2dce8c42 | 175 | { |
85007c04 | 176 | if (s.embeds.size() > 0) |
79bc39ab | 177 | o << _("# global embedded code") << endl; |
85007c04 DB |
178 | for (unsigned i=0; i<s.embeds.size(); i++) |
179 | { | |
e19ebcf7 | 180 | assert_no_interrupts(); |
85007c04 DB |
181 | embeddedcode* ec = s.embeds[i]; |
182 | ec->print (o); | |
183 | o << endl; | |
184 | } | |
2dce8c42 | 185 | |
85007c04 | 186 | if (s.globals.size() > 0) |
79bc39ab | 187 | o << _("# globals") << endl; |
85007c04 DB |
188 | for (unsigned i=0; i<s.globals.size(); i++) |
189 | { | |
e19ebcf7 | 190 | assert_no_interrupts(); |
85007c04 DB |
191 | vardecl* v = s.globals[i]; |
192 | v->printsig (o); | |
193 | if (s.verbose && v->init) | |
194 | { | |
195 | o << " = "; | |
196 | v->init->print(o); | |
197 | } | |
198 | o << endl; | |
199 | } | |
200 | ||
201 | if (s.functions.size() > 0) | |
79bc39ab | 202 | o << _("# functions") << endl; |
85007c04 DB |
203 | for (map<string,functiondecl*>::iterator it = s.functions.begin(); it != s.functions.end(); it++) |
204 | { | |
e19ebcf7 | 205 | assert_no_interrupts(); |
85007c04 DB |
206 | functiondecl* f = it->second; |
207 | f->printsig (o); | |
208 | o << endl; | |
209 | if (f->locals.size() > 0) | |
79bc39ab | 210 | o << _(" # locals") << endl; |
85007c04 DB |
211 | for (unsigned j=0; j<f->locals.size(); j++) |
212 | { | |
213 | vardecl* v = f->locals[j]; | |
214 | o << " "; | |
215 | v->printsig (o); | |
216 | o << endl; | |
217 | } | |
218 | if (s.verbose) | |
219 | { | |
220 | f->body->print (o); | |
221 | o << endl; | |
222 | } | |
223 | } | |
224 | ||
225 | if (s.probes.size() > 0) | |
79bc39ab | 226 | o << _("# probes") << endl; |
85007c04 DB |
227 | for (unsigned i=0; i<s.probes.size(); i++) |
228 | { | |
e19ebcf7 | 229 | assert_no_interrupts(); |
85007c04 DB |
230 | derived_probe* p = s.probes[i]; |
231 | p->printsig (o); | |
232 | o << endl; | |
233 | if (p->locals.size() > 0) | |
79bc39ab | 234 | o << _(" # locals") << endl; |
85007c04 DB |
235 | for (unsigned j=0; j<p->locals.size(); j++) |
236 | { | |
237 | vardecl* v = p->locals[j]; | |
238 | o << " "; | |
239 | v->printsig (o); | |
240 | o << endl; | |
241 | } | |
242 | if (s.verbose) | |
243 | { | |
244 | p->body->print (o); | |
245 | o << endl; | |
246 | } | |
247 | } | |
2dce8c42 | 248 | } |
85007c04 | 249 | } |
e2012a7a | 250 | |
e2012a7a | 251 | |
85007c04 DB |
252 | int pending_interrupts; |
253 | ||
254 | extern "C" | |
255 | void handle_interrupt (int sig) | |
256 | { | |
c9c8c406 JS |
257 | // This might be nice, but we don't know our current verbosity... |
258 | // clog << _F("Received signal %d", sig) << endl << flush; | |
878b2f3f CM |
259 | kill_stap_spawn(SIGTERM); |
260 | ||
85007c04 | 261 | pending_interrupts ++; |
536a1b69 FCE |
262 | // Absorb the first two signals. This used to be one, but when |
263 | // stap is run under sudo, and then interrupted, sudo relays a | |
264 | // redundant copy of the signal to stap, leading to an unclean shutdown. | |
265 | if (pending_interrupts > 2) // XXX: should be configurable? time-based? | |
85007c04 DB |
266 | { |
267 | char msg[] = "Too many interrupts received, exiting.\n"; | |
268 | int rc = write (2, msg, sizeof(msg)-1); | |
269 | if (rc) {/* Do nothing; we don't care if our last gasp went out. */ ;} | |
270 | _exit (1); | |
271 | } | |
272 | } | |
273 | ||
274 | ||
275 | void | |
276 | setup_signals (sighandler_t handler) | |
277 | { | |
278 | struct sigaction sa; | |
279 | ||
11c6c509 | 280 | memset(&sa, 0, sizeof(sa)); |
85007c04 DB |
281 | sa.sa_handler = handler; |
282 | sigemptyset (&sa.sa_mask); | |
283 | if (handler != SIG_IGN) | |
284 | { | |
285 | sigaddset (&sa.sa_mask, SIGHUP); | |
286 | sigaddset (&sa.sa_mask, SIGPIPE); | |
287 | sigaddset (&sa.sa_mask, SIGINT); | |
288 | sigaddset (&sa.sa_mask, SIGTERM); | |
5ed19be2 DB |
289 | sigaddset (&sa.sa_mask, SIGXFSZ); |
290 | sigaddset (&sa.sa_mask, SIGXCPU); | |
85007c04 DB |
291 | } |
292 | sa.sa_flags = SA_RESTART; | |
293 | ||
294 | sigaction (SIGHUP, &sa, NULL); | |
295 | sigaction (SIGPIPE, &sa, NULL); | |
296 | sigaction (SIGINT, &sa, NULL); | |
297 | sigaction (SIGTERM, &sa, NULL); | |
5ed19be2 DB |
298 | sigaction (SIGXFSZ, &sa, NULL); |
299 | sigaction (SIGXCPU, &sa, NULL); | |
e2012a7a | 300 | } |
6e683641 | 301 | |
85007c04 | 302 | |
3d0a328d JS |
303 | static void* |
304 | sdt_benchmark_thread(void* p) | |
305 | { | |
306 | unsigned long i = *(unsigned long*)p; | |
26d48584 | 307 | PROBE(stap, benchmark__thread__start); |
3d0a328d | 308 | while (i--) |
bc7f17fb | 309 | PROBE1(stap, benchmark, i); |
f8e839e8 | 310 | PROBE(stap, benchmark__thread__end); |
3d0a328d JS |
311 | return NULL; |
312 | } | |
313 | ||
314 | ||
315 | static int | |
316 | run_sdt_benchmark(systemtap_session& s) | |
317 | { | |
318 | unsigned long loops = s.benchmark_sdt_loops ?: 10000000; | |
319 | unsigned long threads = s.benchmark_sdt_threads ?: 1; | |
320 | ||
a7160c2b JS |
321 | if (s.verbose > 0) |
322 | clog << _F("Beginning SDT benchmark with %lu loops in %lu threads.", | |
323 | loops, threads) << endl; | |
3d0a328d JS |
324 | |
325 | struct tms tms_before, tms_after; | |
326 | struct timeval tv_before, tv_after; | |
327 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
328 | times (& tms_before); | |
329 | gettimeofday (&tv_before, NULL); | |
330 | ||
26d48584 | 331 | PROBE(stap, benchmark__start); |
bc7f17fb | 332 | |
3d0a328d JS |
333 | pthread_t pthreads[threads]; |
334 | for (unsigned long i = 0; i < threads; ++i) | |
335 | pthread_create(&pthreads[i], NULL, sdt_benchmark_thread, &loops); | |
336 | for (unsigned long i = 0; i < threads; ++i) | |
337 | pthread_join(pthreads[i], NULL); | |
338 | ||
f8e839e8 | 339 | PROBE(stap, benchmark__end); |
bc7f17fb | 340 | |
3d0a328d JS |
341 | times (& tms_after); |
342 | gettimeofday (&tv_after, NULL); | |
a7160c2b JS |
343 | if (s.verbose > 0) |
344 | clog << _F("Completed SDT benchmark in %ldusr/%ldsys/%ldreal ms.", | |
561d4ebd FCE |
345 | (long)(tms_after.tms_utime - tms_before.tms_utime) * 1000 / _sc_clk_tck, |
346 | (long)(tms_after.tms_stime - tms_before.tms_stime) * 1000 / _sc_clk_tck, | |
347 | (long)((tv_after.tv_sec - tv_before.tv_sec) * 1000 + | |
a7160c2b JS |
348 | ((long)tv_after.tv_usec - (long)tv_before.tv_usec) / 1000)) |
349 | << endl; | |
3d0a328d JS |
350 | |
351 | return EXIT_SUCCESS; | |
352 | } | |
353 | ||
354 | ||
44edbcd6 | 355 | // Compilation passes 0 through 4 |
85007c04 DB |
356 | static int |
357 | passes_0_4 (systemtap_session &s) | |
358 | { | |
359 | int rc = 0; | |
daa75206 | 360 | |
504d2b61 JS |
361 | // If we don't know the release, there's no hope either locally or on a server. |
362 | if (s.kernel_release.empty()) | |
363 | { | |
364 | if (s.kernel_build_tree.empty()) | |
365 | cerr << _("ERROR: kernel release isn't specified") << endl; | |
366 | else | |
46a1a151 JS |
367 | cerr << _F("ERROR: kernel release isn't found in \"%s\"", |
368 | s.kernel_build_tree.c_str()) << endl; | |
504d2b61 JS |
369 | return 1; |
370 | } | |
371 | ||
85007c04 DB |
372 | // Perform passes 0 through 4 using a compile server? |
373 | if (! s.specified_servers.empty ()) | |
374 | { | |
0d1534e8 | 375 | #if HAVE_NSS |
85007c04 | 376 | compile_server_client client (s); |
4e78c716 | 377 | return client.passes_0_4 (); |
0d1534e8 | 378 | #else |
4e78c716 DB |
379 | s.print_warning(_("Without NSS, using a compile-server is not supported by this version of systemtap")); |
380 | ||
3e1ec884 DB |
381 | // This cannot be an attempt to use a server after a local compile failed |
382 | // since --use-server-on-error is locked to 'no' if we don't have | |
383 | // NSS. | |
384 | assert (! s.try_server ()); | |
4e78c716 | 385 | s.print_warning(_("Ignoring --use-server")); |
0d1534e8 | 386 | #endif |
85007c04 DB |
387 | } |
388 | ||
389 | // PASS 0: setting up | |
390 | s.verbose = s.perpass_verbose[0]; | |
0f5d597d | 391 | PROBE1(stap, pass0__start, &s); |
85007c04 | 392 | |
85007c04 DB |
393 | // For PR1477, we used to override $PATH and $LC_ALL and other stuff |
394 | // here. We seem to use complete pathnames in | |
395 | // buildrun.cxx/tapsets.cxx now, so this is not necessary. Further, | |
396 | // it interferes with util.cxx:find_executable(), used for $PATH | |
397 | // resolution. | |
398 | ||
399 | s.kernel_base_release.assign(s.kernel_release, 0, s.kernel_release.find('-')); | |
400 | ||
05fb3e0c WF |
401 | // Update various paths to include the sysroot, if provided. |
402 | if (!s.sysroot.empty()) | |
403 | { | |
404 | if (s.update_release_sysroot && !s.sysroot.empty()) | |
405 | s.kernel_build_tree = s.sysroot + s.kernel_build_tree; | |
406 | debuginfo_path_insert_sysroot(s.sysroot); | |
407 | } | |
408 | ||
85007c04 | 409 | // Now that no further changes to s.kernel_build_tree can occur, let's use it. |
d0923e36 NMA |
410 | if (s.runtime_mode == systemtap_session::kernel_runtime) { |
411 | if ((rc = s.parse_kernel_config ()) != 0 | |
412 | || (rc = s.parse_kernel_exports ()) != 0 | |
413 | || (rc = s.parse_kernel_functions ()) != 0) | |
414 | { | |
415 | // Try again with a server | |
416 | s.set_try_server (); | |
417 | return rc; | |
418 | } | |
419 | } | |
85007c04 DB |
420 | |
421 | // Create the name of the C source file within the temporary | |
a4b9c3b3 FCE |
422 | // directory. Note the _src prefix, explained in |
423 | // buildrun.cxx:compile_pass() | |
424 | s.translated_source = string(s.tmpdir) + "/" + s.module_name + "_src.c"; | |
85007c04 | 425 | |
0f5d597d | 426 | PROBE1(stap, pass0__end, &s); |
85007c04 DB |
427 | |
428 | struct tms tms_before; | |
429 | times (& tms_before); | |
430 | struct timeval tv_before; | |
431 | gettimeofday (&tv_before, NULL); | |
432 | ||
e7c60c35 | 433 | // PASS 1a: PARSING LIBRARY SCRIPTS |
0f5d597d | 434 | PROBE1(stap, pass1a__start, &s); |
85007c04 | 435 | |
e7c60c35 SM |
436 | // We need to handle the library scripts first because this pass |
437 | // gathers information on .stpm files that might be needed to | |
438 | // parse the user script. | |
439 | ||
440 | // We need to first ascertain the status of the user script, though. | |
85007c04 DB |
441 | struct stat user_file_stat; |
442 | int user_file_stat_rc = -1; | |
443 | ||
444 | if (s.script_file == "-") | |
445 | { | |
85007c04 DB |
446 | user_file_stat_rc = fstat (STDIN_FILENO, & user_file_stat); |
447 | } | |
448 | else if (s.script_file != "") | |
449 | { | |
85007c04 DB |
450 | user_file_stat_rc = stat (s.script_file.c_str(), & user_file_stat); |
451 | } | |
e7c60c35 | 452 | // otherwise, rc is 0 for a command line script |
f705da87 | 453 | |
85007c04 | 454 | vector<string> version_suffixes; |
f705da87 JS |
455 | if (s.runtime_mode == systemtap_session::kernel_runtime) |
456 | { | |
457 | // Construct kernel-versioning search path | |
458 | string kvr = s.kernel_release; | |
459 | ||
460 | // add full kernel-version-release (2.6.NN-FOOBAR) | |
461 | version_suffixes.push_back ("/" + kvr); | |
462 | ||
463 | // add kernel version (2.6.NN) | |
464 | if (kvr != s.kernel_base_release) | |
465 | { | |
466 | kvr = s.kernel_base_release; | |
467 | version_suffixes.push_back ("/" + kvr); | |
468 | } | |
469 | ||
470 | // add kernel family (2.6) | |
471 | string::size_type dot1_index = kvr.find ('.'); | |
472 | string::size_type dot2_index = kvr.rfind ('.'); | |
473 | while (dot2_index > dot1_index && dot2_index != string::npos) | |
474 | { | |
475 | kvr.erase(dot2_index); | |
476 | version_suffixes.push_back ("/" + kvr); | |
477 | dot2_index = kvr.rfind ('.'); | |
478 | } | |
479 | } | |
480 | ||
85007c04 DB |
481 | // add empty string as last element |
482 | version_suffixes.push_back (""); | |
483 | ||
f705da87 JS |
484 | // Add arch variants of every path, just before each |
485 | const string& arch = s.architecture; | |
486 | for (unsigned i=0; i<version_suffixes.size(); i+=2) | |
487 | version_suffixes.insert(version_suffixes.begin() + i, | |
488 | version_suffixes[i] + "/" + arch); | |
489 | ||
490 | // Add runtime variants of every path, before everything else | |
491 | string runtime_prefix; | |
492 | if (s.runtime_mode == systemtap_session::kernel_runtime) | |
493 | runtime_prefix = "/linux"; | |
494 | else if (s.runtime_mode == systemtap_session::dyninst_runtime) | |
495 | runtime_prefix = "/dyninst"; | |
496 | if (!runtime_prefix.empty()) | |
497 | for (unsigned i=0; i<version_suffixes.size(); i+=2) | |
498 | version_suffixes.insert(version_suffixes.begin() + i/2, | |
499 | runtime_prefix + version_suffixes[i]); | |
85007c04 | 500 | |
fe410f52 SM |
501 | // First, parse .stpm files on the include path. We need to have the |
502 | // resulting macro definitions available for parsing library files, | |
503 | // but since .stpm files can consist only of '@define' constructs, | |
504 | // we can parse each one without reference to the others. | |
505 | set<pair<dev_t, ino_t> > seen_library_macro_files; | |
43179f10 | 506 | set<string> seen_library_macro_files_names; |
fe410f52 | 507 | |
f7a557ae SM |
508 | for (unsigned i=0; i<s.include_path.size(); i++) |
509 | { | |
510 | // now iterate upon it | |
511 | for (unsigned k=0; k<version_suffixes.size(); k++) | |
512 | { | |
513 | glob_t globbuf; | |
514 | string dir = s.include_path[i] + version_suffixes[k] + "/*.stpm"; | |
515 | int r = glob(dir.c_str (), 0, NULL, & globbuf); | |
516 | if (r == GLOB_NOSPACE || r == GLOB_ABORTED) | |
517 | rc ++; | |
518 | // GLOB_NOMATCH is acceptable | |
519 | ||
fe410f52 SM |
520 | unsigned prev_s_library_files = s.library_files.size(); |
521 | ||
f7a557ae SM |
522 | for (unsigned j=0; j<globbuf.gl_pathc; j++) |
523 | { | |
fe410f52 | 524 | assert_no_interrupts(); |
f7a557ae | 525 | |
fe410f52 SM |
526 | struct stat tapset_file_stat; |
527 | int stat_rc = stat (globbuf.gl_pathv[j], & tapset_file_stat); | |
528 | if (stat_rc == 0 && user_file_stat_rc == 0 && | |
529 | user_file_stat.st_dev == tapset_file_stat.st_dev && | |
530 | user_file_stat.st_ino == tapset_file_stat.st_ino) | |
531 | { | |
532 | cerr | |
533 | << _F("usage error: macro tapset file '%s' cannot be run directly as a session script.", | |
534 | globbuf.gl_pathv[j]) << endl; | |
535 | rc ++; | |
f7a557ae SM |
536 | } |
537 | ||
fe410f52 SM |
538 | // PR11949: duplicate-eliminate tapset files |
539 | if (stat_rc == 0) | |
540 | { | |
541 | pair<dev_t,ino_t> here = make_pair(tapset_file_stat.st_dev, | |
542 | tapset_file_stat.st_ino); | |
43179f10 FCE |
543 | if (seen_library_macro_files.find(here) != seen_library_macro_files.end()) { |
544 | if (s.verbose>2) | |
545 | clog << _F("Skipping tapset \"%s\", duplicate inode.", globbuf.gl_pathv[j]) << endl; | |
546 | continue; | |
547 | } | |
fe410f52 SM |
548 | seen_library_macro_files.insert (here); |
549 | } | |
f7a557ae | 550 | |
43179f10 FCE |
551 | // PR12443: duplicate-eliminate harder |
552 | string full_path = globbuf.gl_pathv[j]; | |
553 | string tapset_base = s.include_path[i]; // not dir; it has arch suffixes too | |
554 | if (full_path.size() > tapset_base.size()) { | |
555 | string tail_part = full_path.substr(tapset_base.size()); | |
556 | if (seen_library_macro_files_names.find (tail_part) != seen_library_macro_files_names.end()) { | |
557 | if (s.verbose>2) | |
558 | clog << _F("Skipping tapset \"%s\", duplicate name.", globbuf.gl_pathv[j]) << endl; | |
559 | continue; | |
560 | } | |
561 | seen_library_macro_files_names.insert (tail_part); | |
562 | } | |
563 | ||
564 | if (s.verbose>2) | |
565 | clog << _F("Processing tapset \"%s\"", globbuf.gl_pathv[j]) << endl; | |
566 | ||
f8405ea5 | 567 | stapfile* f = parse_library_macros (s, globbuf.gl_pathv[j]); |
fe410f52 | 568 | if (f == 0) |
6522229f | 569 | s.print_warning(_F("macro tapset \"%s\" has errors, and will be skipped.", string(globbuf.gl_pathv[j]).c_str())); |
fe410f52 SM |
570 | else |
571 | s.library_files.push_back (f); | |
f7a557ae SM |
572 | } |
573 | ||
fe410f52 | 574 | unsigned next_s_library_files = s.library_files.size(); |
f7a557ae | 575 | if (s.verbose>1 && globbuf.gl_pathc > 0) |
fe410f52 | 576 | //TRANSLATORS: Searching through directories, 'processed' means 'examined so far' |
c687e307 | 577 | clog << _F("Searched for library macro files: \"%s\", found: %zu, processed: %u", |
fe410f52 SM |
578 | dir.c_str(), globbuf.gl_pathc, |
579 | (next_s_library_files-prev_s_library_files)) << endl; | |
f7a557ae SM |
580 | |
581 | globfree (&globbuf); | |
582 | } | |
583 | } | |
584 | ||
585 | // Next, gather and parse the library files. | |
ad7c8e43 | 586 | set<pair<dev_t, ino_t> > seen_library_files; |
43179f10 | 587 | set<string> seen_library_files_names; |
ad7c8e43 | 588 | |
85007c04 DB |
589 | for (unsigned i=0; i<s.include_path.size(); i++) |
590 | { | |
f8405ea5 JS |
591 | unsigned tapset_flags = pf_guru | pf_squash_errors; |
592 | ||
593 | // The first path is special, as it's the builtin tapset. | |
594 | // Allow all features no matter what s.compatible says. | |
595 | if (i == 0) | |
596 | tapset_flags |= pf_no_compatible; | |
597 | ||
85007c04 DB |
598 | // now iterate upon it |
599 | for (unsigned k=0; k<version_suffixes.size(); k++) | |
600 | { | |
601 | glob_t globbuf; | |
602 | string dir = s.include_path[i] + version_suffixes[k] + "/*.stp"; | |
603 | int r = glob(dir.c_str (), 0, NULL, & globbuf); | |
604 | if (r == GLOB_NOSPACE || r == GLOB_ABORTED) | |
3e1ec884 | 605 | rc ++; |
44edbcd6 | 606 | // GLOB_NOMATCH is acceptable |
85007c04 | 607 | |
ad7c8e43 | 608 | unsigned prev_s_library_files = s.library_files.size(); |
85007c04 DB |
609 | |
610 | for (unsigned j=0; j<globbuf.gl_pathc; j++) | |
611 | { | |
e19ebcf7 | 612 | assert_no_interrupts(); |
85007c04 | 613 | |
85007c04 DB |
614 | struct stat tapset_file_stat; |
615 | int stat_rc = stat (globbuf.gl_pathv[j], & tapset_file_stat); | |
616 | if (stat_rc == 0 && user_file_stat_rc == 0 && | |
617 | user_file_stat.st_dev == tapset_file_stat.st_dev && | |
618 | user_file_stat.st_ino == tapset_file_stat.st_ino) | |
619 | { | |
79bc39ab | 620 | cerr |
46a1a151 JS |
621 | << _F("usage error: tapset file '%s' cannot be run directly as a session script.", |
622 | globbuf.gl_pathv[j]) << endl; | |
85007c04 DB |
623 | rc ++; |
624 | } | |
625 | ||
ad7c8e43 FCE |
626 | // PR11949: duplicate-eliminate tapset files |
627 | if (stat_rc == 0) | |
628 | { | |
629 | pair<dev_t,ino_t> here = make_pair(tapset_file_stat.st_dev, | |
630 | tapset_file_stat.st_ino); | |
43179f10 FCE |
631 | if (seen_library_files.find(here) != seen_library_files.end()) { |
632 | if (s.verbose>2) | |
633 | clog << _F("Skipping tapset \"%s\", duplicate inode.", globbuf.gl_pathv[j]) << endl; | |
634 | continue; | |
635 | } | |
ad7c8e43 FCE |
636 | seen_library_files.insert (here); |
637 | } | |
638 | ||
43179f10 FCE |
639 | // PR12443: duplicate-eliminate harder |
640 | string full_path = globbuf.gl_pathv[j]; | |
641 | string tapset_base = s.include_path[i]; // not dir; it has arch suffixes too | |
642 | if (full_path.size() > tapset_base.size()) { | |
643 | string tail_part = full_path.substr(tapset_base.size()); | |
644 | if (seen_library_files_names.find (tail_part) != seen_library_files_names.end()) { | |
645 | if (s.verbose>2) | |
646 | clog << _F("Skipping tapset \"%s\", duplicate name.", globbuf.gl_pathv[j]) << endl; | |
647 | continue; | |
648 | } | |
649 | seen_library_files_names.insert (tail_part); | |
650 | } | |
651 | ||
652 | if (s.verbose>2) | |
653 | clog << _F("Processing tapset \"%s\"", globbuf.gl_pathv[j]) << endl; | |
654 | ||
a16ea97d FCE |
655 | // NB: we don't need to restrict privilege only for /usr/share/systemtap, i.e., |
656 | // excluding user-specified $XDG_DATA_DIRS. That's because stapdev gets | |
657 | // root-equivalent privileges anyway; stapsys and stapusr use a remote compilation | |
658 | // with a trusted environment, where client-side $XDG_DATA_DIRS are not passed. | |
659 | ||
f8405ea5 | 660 | stapfile* f = parse (s, globbuf.gl_pathv[j], tapset_flags); |
2713ea24 | 661 | if (f == 0) |
6522229f | 662 | s.print_warning(_F("tapset \"%s\" has errors, and will be skipped", string(globbuf.gl_pathv[j]).c_str())); |
ad7c8e43 FCE |
663 | else |
664 | s.library_files.push_back (f); | |
85007c04 DB |
665 | } |
666 | ||
ad7c8e43 FCE |
667 | unsigned next_s_library_files = s.library_files.size(); |
668 | if (s.verbose>1 && globbuf.gl_pathc > 0) | |
ce0f6648 | 669 | //TRANSLATORS: Searching through directories, 'processed' means 'examined so far' |
c687e307 | 670 | clog << _F("Searched: \"%s\", found: %zu, processed: %u", |
46a1a151 JS |
671 | dir.c_str(), globbuf.gl_pathc, |
672 | (next_s_library_files-prev_s_library_files)) << endl; | |
ad7c8e43 | 673 | |
85007c04 DB |
674 | globfree (& globbuf); |
675 | } | |
676 | } | |
677 | if (s.num_errors()) | |
3e1ec884 | 678 | rc ++; |
85007c04 | 679 | |
e7c60c35 SM |
680 | // PASS 1b: PARSING USER SCRIPT |
681 | PROBE1(stap, pass1b__start, &s); | |
682 | ||
bba368c5 JL |
683 | // Only try to parse a user script if the user provided one, or if we have to |
684 | // make one (as is the case for listing mode). Otherwise, s.user_script | |
685 | // remains NULL. | |
686 | if (!s.script_file.empty() || | |
687 | !s.cmdline_script.empty() || | |
688 | s.dump_mode == systemtap_session::dump_matched_probes || | |
689 | s.dump_mode == systemtap_session::dump_matched_probes_vars) | |
e7c60c35 | 690 | { |
f8405ea5 | 691 | unsigned user_flags = s.guru_mode ? pf_guru : 0; |
bba368c5 JL |
692 | if (s.script_file == "-") |
693 | { | |
ba48c27a | 694 | s.user_files.push_back (parse (s, "<input>", cin, user_flags)); |
bba368c5 JL |
695 | } |
696 | else if (s.script_file != "") | |
697 | { | |
ba48c27a | 698 | s.user_files.push_back (parse (s, s.script_file, user_flags)); |
bba368c5 JL |
699 | } |
700 | else if (s.cmdline_script != "") | |
701 | { | |
702 | istringstream ii (s.cmdline_script); | |
ba48c27a | 703 | s.user_files.push_back(parse (s, "<input>", ii, user_flags)); |
bba368c5 JL |
704 | } |
705 | else // listing mode | |
706 | { | |
707 | istringstream ii ("probe " + s.dump_matched_pattern + " {}"); | |
ba48c27a | 708 | s.user_files.push_back (parse (s, "<input>", ii, user_flags)); |
bba368c5 | 709 | } |
ba48c27a AJ |
710 | |
711 | // parses the additional script(s) (-E script). does so even if in listing | |
712 | // mode, incase there is something special in the additional script(s), | |
713 | // like a macro or alias. give them a unique name to differentiate the | |
714 | // scripts that were inputted. | |
715 | unsigned count = 1; | |
716 | for (vector<string>::iterator script = s.additional_scripts.begin(); script != s.additional_scripts.end(); script++) | |
717 | { | |
718 | string input_name = "<input" + lex_cast(count) + ">"; | |
719 | istringstream ii (*script); | |
720 | s.user_files.push_back(parse (s, input_name, ii, user_flags)); | |
721 | count ++; | |
722 | } | |
723 | ||
724 | for(vector<stapfile*>::iterator it = s.user_files.begin(); it != s.user_files.end(); it++) | |
bba368c5 | 725 | { |
ba48c27a AJ |
726 | if (!(*it)) |
727 | { | |
728 | // Syntax errors already printed. | |
729 | rc ++; | |
730 | } | |
bba368c5 | 731 | } |
e7c60c35 SM |
732 | } |
733 | ||
7d66cd75 | 734 | // Dump a list of probe aliases picked up, if requested |
bba368c5 | 735 | if (s.dump_mode == systemtap_session::dump_probe_aliases) |
7d66cd75 JL |
736 | { |
737 | set<string> aliases; | |
738 | vector<stapfile*>::const_iterator file; | |
739 | for (file = s.library_files.begin(); | |
740 | file != s.library_files.end(); ++file) | |
741 | { | |
742 | vector<probe_alias*>::const_iterator alias; | |
743 | for (alias = (*file)->aliases.begin(); | |
744 | alias != (*file)->aliases.end(); ++alias) | |
745 | { | |
746 | stringstream ss; | |
747 | (*alias)->printsig(ss); | |
748 | string str = ss.str(); | |
749 | if (!s.verbose && startswith(str, "_")) | |
750 | continue; | |
751 | aliases.insert(str); | |
752 | } | |
753 | } | |
754 | ||
755 | set<string>::iterator alias; | |
756 | for (alias = aliases.begin(); | |
757 | alias != aliases.end(); ++alias) | |
758 | { | |
759 | cout << *alias << endl; | |
760 | } | |
761 | } | |
762 | // Dump the parse tree if this is the last pass | |
763 | else if (rc == 0 && s.last_pass == 1) | |
4c263acb SM |
764 | { |
765 | cout << _("# parse tree dump") << endl; | |
ba48c27a AJ |
766 | for (vector<stapfile*>::iterator it = s.user_files.begin(); it != s.user_files.end(); it++) |
767 | (*it)->print (cout); | |
4c263acb SM |
768 | cout << endl; |
769 | if (s.verbose) | |
770 | for (unsigned i=0; i<s.library_files.size(); i++) | |
771 | { | |
772 | s.library_files[i]->print (cout); | |
773 | cout << endl; | |
774 | } | |
775 | } | |
776 | ||
85007c04 DB |
777 | struct tms tms_after; |
778 | times (& tms_after); | |
779 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
780 | struct timeval tv_after; | |
781 | gettimeofday (&tv_after, NULL); | |
782 | ||
783 | #define TIMESPRINT "in " << \ | |
784 | (tms_after.tms_cutime + tms_after.tms_utime \ | |
785 | - tms_before.tms_cutime - tms_before.tms_utime) * 1000 / (_sc_clk_tck) << "usr/" \ | |
786 | << (tms_after.tms_cstime + tms_after.tms_stime \ | |
787 | - tms_before.tms_cstime - tms_before.tms_stime) * 1000 / (_sc_clk_tck) << "sys/" \ | |
788 | << ((tv_after.tv_sec - tv_before.tv_sec) * 1000 + \ | |
789 | ((long)tv_after.tv_usec - (long)tv_before.tv_usec) / 1000) << "real ms." | |
790 | ||
791 | // syntax errors, if any, are already printed | |
792 | if (s.verbose) | |
793 | { | |
e7c60c35 | 794 | // XXX also include a count of helper macro files loaded (.stpm)? |
85007c04 DB |
795 | clog << "Pass 1: parsed user script and " |
796 | << s.library_files.size() | |
797 | << " library script(s) " | |
798 | << getmemusage() | |
799 | << TIMESPRINT | |
800 | << endl; | |
801 | } | |
802 | ||
bba368c5 | 803 | if (rc && !s.dump_mode) |
1f35f4db | 804 | cerr << _("Pass 1: parse failed. [man error::pass1]") << endl; |
85007c04 | 805 | |
0f5d597d | 806 | PROBE1(stap, pass1__end, &s); |
85007c04 | 807 | |
e19ebcf7 | 808 | assert_no_interrupts(); |
bba368c5 JL |
809 | if (rc || s.last_pass == 1 || |
810 | s.dump_mode == systemtap_session::dump_probe_aliases) | |
811 | return rc; | |
85007c04 DB |
812 | |
813 | times (& tms_before); | |
814 | gettimeofday (&tv_before, NULL); | |
815 | ||
816 | // PASS 2: ELABORATION | |
817 | s.verbose = s.perpass_verbose[1]; | |
0f5d597d | 818 | PROBE1(stap, pass2__start, &s); |
85007c04 DB |
819 | rc = semantic_pass (s); |
820 | ||
b82d77b4 | 821 | // Dump a list of known probe point types, if requested. |
bba368c5 | 822 | if (s.dump_mode == systemtap_session::dump_probe_types) |
b82d77b4 | 823 | s.pattern_root->dump (s); |
eb9ea966 | 824 | // Dump a list of functions we picked up, if requested. |
bba368c5 | 825 | else if (s.dump_mode == systemtap_session::dump_functions) |
eb9ea966 JL |
826 | { |
827 | map<string,functiondecl*>::const_iterator func; | |
828 | for (func = s.functions.begin(); | |
829 | func != s.functions.end(); ++func) | |
830 | { | |
831 | functiondecl& curfunc = *func->second; | |
832 | if (curfunc.synthetic) | |
833 | continue; | |
834 | if (!s.verbose && startswith(curfunc.name, "_")) | |
835 | continue; | |
836 | curfunc.printsigtags(cout, s.verbose>0 /* all_tags */ ); | |
837 | cout << endl; | |
838 | } | |
839 | } | |
840 | // Dump the whole script if requested, or if we stop at 2 | |
bba368c5 JL |
841 | else if (s.dump_mode == systemtap_session::dump_matched_probes || |
842 | s.dump_mode == systemtap_session::dump_matched_probes_vars || | |
843 | (rc == 0 && s.last_pass == 2)) | |
85007c04 DB |
844 | printscript(s, cout); |
845 | ||
846 | times (& tms_after); | |
847 | gettimeofday (&tv_after, NULL); | |
848 | ||
849 | if (s.verbose) clog << "Pass 2: analyzed script: " | |
850 | << s.probes.size() << " probe(s), " | |
851 | << s.functions.size() << " function(s), " | |
852 | << s.embeds.size() << " embed(s), " | |
853 | << s.globals.size() << " global(s) " | |
854 | << getmemusage() | |
855 | << TIMESPRINT | |
856 | << endl; | |
857 | ||
bba368c5 | 858 | if (rc && !s.dump_mode && !s.try_server ()) |
1f35f4db | 859 | cerr << _("Pass 2: analysis failed. [man error::pass2]") << endl; |
85007c04 | 860 | |
0f5d597d | 861 | PROBE1(stap, pass2__end, &s); |
85007c04 | 862 | |
e19ebcf7 | 863 | assert_no_interrupts(); |
bba368c5 JL |
864 | // NB: none of the dump modes need to go beyond pass-2. If this changes, break |
865 | // into individual modes here. | |
866 | if (rc || s.last_pass == 2 || s.dump_mode) | |
867 | return rc; | |
85007c04 | 868 | |
d13bcfd8 | 869 | rc = prepare_translate_pass (s); |
e19ebcf7 | 870 | assert_no_interrupts(); |
985892de | 871 | if (rc) return rc; |
d13bcfd8 | 872 | |
85007c04 DB |
873 | // Generate hash. There isn't any point in generating the hash |
874 | // if last_pass is 2, since we'll quit before using it. | |
875 | if (s.use_script_cache) | |
876 | { | |
877 | ostringstream o; | |
878 | unsigned saved_verbose; | |
879 | ||
880 | { | |
881 | // Make sure we're in verbose mode, so that printscript() | |
882 | // will output function/probe bodies. | |
883 | saved_verbose = s.verbose; | |
884 | s.verbose = 3; | |
885 | printscript(s, o); // Print script to 'o' | |
886 | s.verbose = saved_verbose; | |
887 | } | |
888 | ||
889 | // Generate hash | |
890 | find_script_hash (s, o.str()); | |
891 | ||
892 | // See if we can use cached source/module. | |
893 | if (get_script_from_cache(s)) | |
894 | { | |
7d26ee02 JS |
895 | // We may still need to build uprobes, if it's not also cached. |
896 | if (s.need_uprobes) | |
897 | rc = uprobes_pass(s); | |
898 | ||
85007c04 DB |
899 | // If our last pass isn't 5, we're done (since passes 3 and |
900 | // 4 just generate what we just pulled out of the cache). | |
e19ebcf7 | 901 | assert_no_interrupts(); |
985892de | 902 | if (rc || s.last_pass < 5) return rc; |
85007c04 DB |
903 | |
904 | // Short-circuit to pass 5. | |
905 | return 0; | |
906 | } | |
907 | } | |
908 | ||
909 | // PASS 3: TRANSLATION | |
910 | s.verbose = s.perpass_verbose[2]; | |
911 | times (& tms_before); | |
912 | gettimeofday (&tv_before, NULL); | |
0f5d597d | 913 | PROBE1(stap, pass3__start, &s); |
85007c04 DB |
914 | |
915 | rc = translate_pass (s); | |
3e1ec884 | 916 | if (! rc && s.last_pass == 3) |
85007c04 DB |
917 | { |
918 | ifstream i (s.translated_source.c_str()); | |
919 | cout << i.rdbuf(); | |
920 | } | |
921 | ||
922 | times (& tms_after); | |
923 | gettimeofday (&tv_after, NULL); | |
924 | ||
79bc39ab LB |
925 | if (s.verbose) |
926 | clog << "Pass 3: translated to C into \"" | |
927 | << s.translated_source | |
928 | << "\" " | |
929 | << getmemusage() | |
930 | << TIMESPRINT | |
85007c04 DB |
931 | << endl; |
932 | ||
44edbcd6 | 933 | if (rc && ! s.try_server ()) |
1f35f4db | 934 | cerr << _("Pass 3: translation failed. [man error::pass3]") << endl; |
79bc39ab | 935 | |
0f5d597d | 936 | PROBE1(stap, pass3__end, &s); |
85007c04 | 937 | |
e19ebcf7 | 938 | assert_no_interrupts(); |
985892de | 939 | if (rc || s.last_pass == 3) return rc; |
85007c04 DB |
940 | |
941 | // PASS 4: COMPILATION | |
942 | s.verbose = s.perpass_verbose[3]; | |
943 | times (& tms_before); | |
944 | gettimeofday (&tv_before, NULL); | |
0f5d597d | 945 | PROBE1(stap, pass4__start, &s); |
85007c04 DB |
946 | |
947 | if (s.use_cache) | |
948 | { | |
949 | find_stapconf_hash(s); | |
950 | get_stapconf_from_cache(s); | |
951 | } | |
952 | rc = compile_pass (s); | |
3e1ec884 | 953 | if (! rc && s.last_pass == 4) |
85007c04 | 954 | { |
4441e344 | 955 | cout << ((s.hash_path == "") ? s.module_filename() : s.hash_path); |
85007c04 DB |
956 | cout << endl; |
957 | } | |
958 | ||
959 | times (& tms_after); | |
960 | gettimeofday (&tv_after, NULL); | |
961 | ||
962 | if (s.verbose) clog << "Pass 4: compiled C into \"" | |
4441e344 | 963 | << s.module_filename() |
85007c04 DB |
964 | << "\" " |
965 | << TIMESPRINT | |
966 | << endl; | |
967 | ||
44edbcd6 | 968 | if (rc && ! s.try_server ()) |
1f35f4db | 969 | cerr << _("Pass 4: compilation failed. [man error::pass4]") << endl; |
be4b2eed | 970 | |
85007c04 DB |
971 | else |
972 | { | |
973 | // Update cache. Cache cleaning is kicked off at the beginning of this function. | |
974 | if (s.use_script_cache) | |
975 | add_script_to_cache(s); | |
ac3af990 | 976 | if (s.use_cache && !s.runtime_usermode_p()) |
85007c04 DB |
977 | add_stapconf_to_cache(s); |
978 | ||
979 | // We may need to save the module in $CWD if the cache was | |
980 | // inaccessible for some reason. | |
981 | if (! s.use_script_cache && s.last_pass == 4) | |
982 | s.save_module = true; | |
983 | ||
984 | // Copy module to the current directory. | |
985 | if (s.save_module && !pending_interrupts) | |
986 | { | |
4441e344 JS |
987 | string module_src_path = s.tmpdir + "/" + s.module_filename(); |
988 | string module_dest_path = s.module_filename(); | |
85007c04 DB |
989 | copy_file(module_src_path, module_dest_path, s.verbose > 1); |
990 | } | |
50f92d4e SH |
991 | |
992 | // Copy uprobes module to the current directory. | |
91ea0ce6 | 993 | if (s.save_uprobes && !s.uprobes_path.empty() && !pending_interrupts) |
50f92d4e SH |
994 | { |
995 | rc = create_dir("uprobes"); | |
996 | if (! rc) | |
997 | copy_file(s.uprobes_path, "uprobes/uprobes.ko", s.verbose > 1); | |
998 | } | |
85007c04 DB |
999 | } |
1000 | ||
0f5d597d | 1001 | PROBE1(stap, pass4__end, &s); |
85007c04 DB |
1002 | |
1003 | return rc; | |
1004 | } | |
1005 | ||
1006 | static int | |
ebff2ed0 | 1007 | pass_5 (systemtap_session &s, vector<remote*> targets) |
85007c04 DB |
1008 | { |
1009 | // PASS 5: RUN | |
1010 | s.verbose = s.perpass_verbose[4]; | |
1011 | struct tms tms_before; | |
1012 | times (& tms_before); | |
1013 | struct timeval tv_before; | |
1014 | gettimeofday (&tv_before, NULL); | |
1015 | // NB: this message is a judgement call. The other passes don't emit | |
1016 | // a "hello, I'm starting" message, but then the others aren't interactive | |
1017 | // and don't take an indefinite amount of time. | |
0f5d597d | 1018 | PROBE1(stap, pass5__start, &s); |
79bc39ab | 1019 | if (s.verbose) clog << _("Pass 5: starting run.") << endl; |
4f244435 | 1020 | int rc = remote::run(targets); |
85007c04 DB |
1021 | struct tms tms_after; |
1022 | times (& tms_after); | |
1023 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
1024 | struct timeval tv_after; | |
1025 | gettimeofday (&tv_after, NULL); | |
1026 | if (s.verbose) clog << "Pass 5: run completed " | |
1027 | << TIMESPRINT | |
1028 | << endl; | |
1029 | ||
1030 | if (rc) | |
1f35f4db | 1031 | cerr << _("Pass 5: run failed. [man error::pass5]") << endl; |
85007c04 DB |
1032 | else |
1033 | // Interrupting pass-5 to quit is normal, so we want an EXIT_SUCCESS below. | |
1034 | pending_interrupts = 0; | |
1035 | ||
0f5d597d | 1036 | PROBE1(stap, pass5__end, &s); |
85007c04 DB |
1037 | |
1038 | return rc; | |
1039 | } | |
1040 | ||
1041 | static void | |
1042 | cleanup (systemtap_session &s, int rc) | |
1043 | { | |
1044 | // PASS 6: cleaning up | |
0f5d597d | 1045 | PROBE1(stap, pass6__start, &s); |
85007c04 | 1046 | |
ebff2ed0 JS |
1047 | for (systemtap_session::session_map_t::iterator it = s.subsessions.begin(); |
1048 | it != s.subsessions.end(); ++it) | |
1049 | cleanup (*it->second, rc); | |
1050 | ||
85007c04 DB |
1051 | // update the database information |
1052 | if (!rc && s.tapset_compile_coverage && !pending_interrupts) { | |
1053 | #ifdef HAVE_LIBSQLITE3 | |
1054 | update_coverage_db(s); | |
1055 | #else | |
79bc39ab | 1056 | cerr << _("Coverage database not available without libsqlite3") << endl; |
85007c04 DB |
1057 | #endif |
1058 | } | |
1059 | ||
678b7381 | 1060 | s.report_suppression(); |
9e1a2390 | 1061 | |
0f5d597d | 1062 | PROBE1(stap, pass6__end, &s); |
85007c04 DB |
1063 | } |
1064 | ||
44edbcd6 JS |
1065 | static int |
1066 | passes_0_4_again_with_server (systemtap_session &s) | |
1067 | { | |
1068 | // Not a server and not already using a server. | |
1069 | assert (! s.client_options); | |
1070 | assert (s.specified_servers.empty ()); | |
1071 | ||
1072 | // Specify default server(s). | |
1073 | s.specified_servers.push_back (""); | |
1074 | ||
b96901b7 CM |
1075 | // Reset the previous temporary directory and start fresh |
1076 | s.reset_tmp_dir(); | |
44edbcd6 JS |
1077 | |
1078 | // Try to compile again, using the server | |
b5f561be | 1079 | clog << _("Attempting compilation using a compile server") |
44edbcd6 | 1080 | << endl; |
b96901b7 | 1081 | |
44edbcd6 JS |
1082 | int rc = passes_0_4 (s); |
1083 | return rc; | |
1084 | } | |
1085 | ||
85007c04 DB |
1086 | int |
1087 | main (int argc, char * const argv []) | |
1088 | { | |
1089 | // Initialize defaults. | |
b96901b7 | 1090 | try { |
891043f0 | 1091 | systemtap_session s; |
52c2652f | 1092 | #if ENABLE_NLS |
891043f0 CM |
1093 | setlocale (LC_ALL, ""); |
1094 | bindtextdomain (PACKAGE, LOCALEDIR); | |
1095 | textdomain (PACKAGE); | |
52c2652f | 1096 | #endif |
891043f0 CM |
1097 | |
1098 | // Set up our handler to catch routine signals, to allow clean | |
1099 | // and reasonably timely exit. | |
1100 | setup_signals(&handle_interrupt); | |
1101 | ||
1102 | // PR13520: Parse $SYSTEMTAP_DIR/rc for extra options | |
1103 | string rc_file = s.data_path + "/rc"; | |
1104 | ifstream rcf (rc_file.c_str()); | |
1105 | string rcline; | |
1106 | wordexp_t words; | |
1107 | memset (& words, 0, sizeof(words)); | |
1108 | int rc = 0; | |
1109 | int linecount = 0; | |
1110 | while (getline (rcf, rcline)) | |
1111 | { | |
1112 | rc = wordexp (rcline.c_str(), & words, WRDE_NOCMD|WRDE_UNDEF| | |
1113 | (linecount > 0 ? WRDE_APPEND : 0)); | |
1114 | // NB: WRDE_APPEND automagically reallocates words.* as more options are added. | |
1115 | linecount ++; | |
1116 | if (rc) break; | |
1117 | } | |
1118 | int extended_argc = words.we_wordc + argc; | |
1119 | char **extended_argv = (char**) calloc (extended_argc + 1, sizeof(char*)); | |
1120 | if (rc || !extended_argv) | |
1121 | { | |
1122 | clog << _F("Error processing extra options in %s", rc_file.c_str()); | |
e2d0f787 | 1123 | return EXIT_FAILURE; |
891043f0 CM |
1124 | } |
1125 | // Copy over the arguments *by reference*, first the ones from the rc file. | |
1126 | char **p = & extended_argv[0]; | |
1127 | *p++ = argv[0]; | |
1128 | for (unsigned i=0; i<words.we_wordc; i++) *p++ = words.we_wordv[i]; | |
1129 | for (int j=1; j<argc; j++) *p++ = argv[j]; | |
1130 | *p++ = NULL; | |
1131 | ||
1132 | // Process the command line. | |
1133 | rc = s.parse_cmdline (extended_argc, extended_argv); | |
1134 | if (rc != 0) | |
e2d0f787 | 1135 | return rc; |
891043f0 CM |
1136 | |
1137 | if (words.we_wordc > 0 && s.verbose > 1) | |
1138 | clog << _F("Extra options in %s: %d\n", rc_file.c_str(), (int)words.we_wordc); | |
1139 | ||
1140 | // Check for options conflicts. Exits if errors are detected. | |
1141 | s.check_options (extended_argc, extended_argv); | |
1142 | ||
1143 | // We don't need these strings any more. | |
1144 | wordfree (& words); | |
1145 | free (extended_argv); | |
1146 | ||
1147 | // arguments parsed; get down to business | |
1148 | if (s.verbose > 1) | |
1149 | s.version (); | |
1150 | ||
1151 | // Need to send the verbose message here, rather than in the session ctor, since | |
1152 | // we didn't know if verbose was set. | |
1153 | if (rc == 0 && s.verbose>1) | |
1154 | clog << _F("Created temporary directory \"%s\"", s.tmpdir.c_str()) << endl; | |
1155 | ||
3d0a328d JS |
1156 | // Run the benchmark and quit right away. |
1157 | if (s.benchmark_sdt_loops || s.benchmark_sdt_threads) | |
1158 | return run_sdt_benchmark(s); | |
1159 | ||
891043f0 CM |
1160 | // Prepare connections for each specified remote target. |
1161 | vector<remote*> targets; | |
1162 | bool fake_remote=false; | |
1163 | if (s.remote_uris.empty()) | |
1164 | { | |
1165 | fake_remote=true; | |
1166 | s.remote_uris.push_back("direct:"); | |
1167 | } | |
1168 | for (unsigned i = 0; rc == 0 && i < s.remote_uris.size(); ++i) | |
1169 | { | |
1170 | // PR13354: pass remote id#/url only in non --remote=HOST cases | |
1171 | remote *target = remote::create(s, s.remote_uris[i], | |
1172 | fake_remote ? -1 : (int)i); | |
1173 | if (target) | |
1174 | targets.push_back(target); | |
1175 | else | |
1176 | rc = 1; | |
1177 | } | |
3a97e514 | 1178 | |
891043f0 CM |
1179 | // Discover and loop over each unique session created by the remote targets. |
1180 | set<systemtap_session*> sessions; | |
1181 | for (unsigned i = 0; i < targets.size(); ++i) | |
1182 | sessions.insert(targets[i]->get_session()); | |
1183 | for (set<systemtap_session*>::iterator it = sessions.begin(); | |
1184 | rc == 0 && !pending_interrupts && it != sessions.end(); ++it) | |
1185 | { | |
1186 | systemtap_session& ss = **it; | |
1187 | if (ss.verbose > 1) | |
1188 | clog << _F("Session arch: %s release: %s", | |
1189 | ss.architecture.c_str(), ss.kernel_release.c_str()) << endl; | |
85007c04 | 1190 | |
c4fd15b4 | 1191 | #if HAVE_NSS |
891043f0 CM |
1192 | // If requested, query server status. This is independent of other tasks. |
1193 | query_server_status (ss); | |
85007c04 | 1194 | |
891043f0 CM |
1195 | // If requested, manage trust of servers. This is independent of other tasks. |
1196 | manage_server_trust (ss); | |
c4fd15b4 | 1197 | #endif |
ebff2ed0 | 1198 | |
bba368c5 JL |
1199 | // Run the passes only if a script has been specified or if we're |
1200 | // dumping something. The requirement for a script has already been | |
1201 | // checked in systemtap_session::check_options. | |
1202 | if (ss.have_script || ss.dump_mode) | |
891043f0 CM |
1203 | { |
1204 | // Run passes 0-4 for each unique session, | |
1205 | // either locally or using a compile-server. | |
1206 | ss.init_try_server (); | |
1207 | if ((rc = passes_0_4 (ss))) | |
1208 | { | |
1209 | // Compilation failed. | |
1210 | // Try again using a server if appropriate. | |
1211 | if (ss.try_server ()) | |
1212 | rc = passes_0_4_again_with_server (ss); | |
1213 | } | |
4e78c716 DB |
1214 | if (rc || s.perpass_verbose[0] >= 1) |
1215 | s.explain_auto_options (); | |
891043f0 | 1216 | } |
891043f0 | 1217 | } |
3a97e514 | 1218 | |
891043f0 CM |
1219 | // Run pass 5, if requested |
1220 | if (rc == 0 && s.have_script && s.last_pass >= 5 && ! pending_interrupts) | |
1221 | rc = pass_5 (s, targets); | |
85007c04 | 1222 | |
891043f0 CM |
1223 | // Pass 6. Cleanup |
1224 | for (unsigned i = 0; i < targets.size(); ++i) | |
1225 | delete targets[i]; | |
1226 | cleanup (s, rc); | |
b96901b7 | 1227 | |
e19ebcf7 | 1228 | assert_no_interrupts(); |
985892de | 1229 | return (rc) ? EXIT_FAILURE : EXIT_SUCCESS; |
b96901b7 | 1230 | } |
8d4072eb | 1231 | catch (const interrupt_exception& e) { |
985892de | 1232 | // User entered ctrl-c, exit quietly. |
e2d0f787 JS |
1233 | return EXIT_FAILURE; |
1234 | } | |
1235 | catch (const exit_exception& e) { | |
1236 | // Exiting for any quiet reason. | |
1237 | return e.rc; | |
985892de | 1238 | } |
29375627 JL |
1239 | catch (const exception &e) { |
1240 | // Some other uncaught exception. | |
985892de | 1241 | cerr << e.what() << endl; |
e2d0f787 | 1242 | return EXIT_FAILURE; |
985892de CM |
1243 | } |
1244 | catch (...) { | |
1245 | // Catch all other unknown exceptions. | |
1246 | cerr << _("ERROR: caught unknown exception!") << endl; | |
e2d0f787 | 1247 | return EXIT_FAILURE; |
b96901b7 | 1248 | } |
85007c04 DB |
1249 | } |
1250 | ||
1251 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |