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f4b28491 | 1 | // systemtap translator/driver |
cf4a6df8 | 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" | |
12 | #include "staptree.h" | |
13 | #include "parse.h" | |
14 | #include "elaborate.h" | |
15 | #include "translate.h" | |
f4b28491 | 16 | #include "buildrun.h" |
dc38c0ae | 17 | #include "session.h" |
1b78aef5 DS |
18 | #include "hash.h" |
19 | #include "cache.h" | |
20 | #include "util.h" | |
c3a3c0c9 | 21 | #include "coveragedb.h" |
c0f9d4b0 | 22 | #include "git_version.h" |
2ed04863 | 23 | #include "rpm_finder.h" |
671ceda8 FCE |
24 | #include "task_finder.h" |
25 | ||
ce91eebd | 26 | #include "sys/sdt.h" |
2b066ec1 FCE |
27 | |
28 | #include <iostream> | |
29 | #include <fstream> | |
30 | #include <sstream> | |
f4b28491 | 31 | #include <cerrno> |
24cb178f | 32 | #include <cstdlib> |
e00f99a7 | 33 | #include <limits.h> |
2b066ec1 FCE |
34 | |
35 | extern "C" { | |
36 | #include <glob.h> | |
37 | #include <unistd.h> | |
49abf162 | 38 | #include <signal.h> |
f4b28491 | 39 | #include <sys/utsname.h> |
5ee1c56b | 40 | #include <sys/times.h> |
1d738eed | 41 | #include <sys/time.h> |
f59e98c4 | 42 | #include <sys/stat.h> |
f4b28491 | 43 | #include <time.h> |
f8949662 | 44 | #include <elfutils/libdwfl.h> |
5f0a03a6 | 45 | #include <getopt.h> |
28b768e1 | 46 | #include <unistd.h> |
2b066ec1 FCE |
47 | } |
48 | ||
49 | using namespace std; | |
50 | ||
8f222481 | 51 | #define PATH_TBD string("__TBD__") |
2b066ec1 | 52 | |
f4b28491 | 53 | void |
c0de7a8d | 54 | version () |
2b066ec1 | 55 | { |
d54d4661 | 56 | clog |
d04cf5ff | 57 | << "SystemTap translator/driver " |
c4a94c1a | 58 | << "(version " << VERSION << "/" << dwfl_version (NULL) |
2881ab63 | 59 | << " " << GIT_MESSAGE << ")" << endl |
c0d1b5a0 | 60 | << "Copyright (C) 2005-2010 Red Hat, Inc. and others" << endl |
f8949662 | 61 | << "This is free software; see the source for copying conditions." << endl; |
c0de7a8d FCE |
62 | } |
63 | ||
64 | void | |
277c1957 | 65 | usage (systemtap_session& s, int exitcode) |
c0de7a8d FCE |
66 | { |
67 | version (); | |
68 | clog | |
f4b28491 | 69 | << endl |
b2d5d95c | 70 | << "Usage: stap [options] FILE Run script in file." |
f4b28491 | 71 | << endl |
b2d5d95c | 72 | << " or: stap [options] - Run script on stdin." |
f4b28491 | 73 | << endl |
d54d4661 | 74 | << " or: stap [options] -e SCRIPT Run given script." |
f4b28491 | 75 | << endl |
16442b90 FCE |
76 | << " or: stap [options] -l PROBE List matching probes." |
77 | << endl | |
d4e35ac8 WH |
78 | << " or: stap [options] -L PROBE List matching probes and local variables." |
79 | << endl | |
f4b28491 | 80 | << endl |
c0de7a8d | 81 | << "Options:" << endl |
16442b90 | 82 | << " -- end of translator options, script options follow" << endl |
83b38ce6 | 83 | << " -h --help show help" << endl |
c0de7a8d | 84 | << " -V show version" << endl |
e0b4e89d FCE |
85 | << " -p NUM stop after pass NUM 1-5, instead of " << s.last_pass << endl |
86 | << " (parse, elaborate, translate, compile, run)" << endl | |
87 | << " -v add verbosity to all passes" << endl | |
88 | << " --vp {N}+ add per-pass verbosity ["; | |
89 | for (unsigned i=0; i<5; i++) | |
90 | clog << (s.perpass_verbose[i] <= 9 ? s.perpass_verbose[i] : 9); | |
91 | clog | |
92 | << "]" << endl | |
d5d7c2cc | 93 | << " -k keep temporary directory" << endl |
cbfbbf69 | 94 | << " -u unoptimized translation" << (s.unoptimized ? " [set]" : "") << endl |
a9e8f7e0 | 95 | << " -w suppress warnings" << (s.suppress_warnings ? " [set]" : "") << endl |
57a56e00 | 96 | << " -W turn warnings into errors" << (s.panic_warnings ? " [set]" : "") << endl |
377b8831 | 97 | << " -g guru mode" << (s.guru_mode ? " [set]" : "") << endl |
dff50e09 | 98 | << " -P prologue-searching for function probes" |
44f75386 | 99 | << (s.prologue_searching ? " [set]" : "") << endl |
6dfd08d7 | 100 | << " -b bulk (percpu file) mode" << (s.bulk_mode ? " [set]" : "") << endl |
e0b4e89d | 101 | << " -s NUM buffer size in megabytes, instead of " << s.buffer_size << endl |
f4b28491 FCE |
102 | << " -I DIR look in DIR for additional .stp script files"; |
103 | if (s.include_path.size() == 0) | |
0d49d7bc | 104 | clog << endl; |
f4b28491 | 105 | else |
24cb178f | 106 | clog << ", in addition to" << endl; |
f4b28491 | 107 | for (unsigned i=0; i<s.include_path.size(); i++) |
0d49d7bc FCE |
108 | clog << " " << s.include_path[i] << endl; |
109 | clog | |
ed10c639 | 110 | << " -D NM=VAL emit macro definition into generated C code" << endl |
1392896d | 111 | << " -B NM=VAL pass option to kbuild make" << endl |
24cb178f | 112 | << " -R DIR look in DIR for runtime, instead of" << endl |
b5e66ada FCE |
113 | << " " << s.runtime_path << endl |
114 | << " -r DIR cross-compile to kernel with given build tree; or else" << endl | |
115 | << " -r RELEASE cross-compile to kernel /lib/modules/RELEASE/build, instead of" << endl | |
116 | << " " << s.kernel_build_tree << endl | |
1392896d | 117 | << " -a ARCH cross-compile to given architecture, instead of " << s.architecture << endl |
b5e66ada FCE |
118 | << " -m MODULE set probe module name, instead of " << endl |
119 | << " " << s.module_name << endl | |
04ae1b09 | 120 | << " -o FILE send script output to file, instead of stdout. This supports" << endl |
54f1da8f | 121 | << " strftime(3) formats for FILE" << endl |
b5e66ada | 122 | << " -c CMD start the probes, run CMD, and exit when it finishes" << endl |
4c5ff1bb | 123 | << " -x PID sets target() to PID" << endl |
701c41be MH |
124 | << " -F run as on-file flight recorder with -o." << endl |
125 | << " run as on-memory flight recorder without -o." << endl | |
126 | << " -S size[,n] set maximum of the size and the number of files." << endl | |
a8368458 FCE |
127 | << " -d OBJECT add unwind/symbol data for OBJECT file"; |
128 | if (s.unwindsym_modules.size() == 0) | |
129 | clog << endl; | |
130 | else | |
131 | clog << ", in addition to" << endl; | |
1a0dbc5a FCE |
132 | { |
133 | vector<string> syms (s.unwindsym_modules.begin(), s.unwindsym_modules.end()); | |
134 | for (unsigned i=0; i<syms.size(); i++) | |
135 | clog << " " << syms[i] << endl; | |
136 | } | |
a8368458 | 137 | clog |
cbd6fc7b | 138 | << " -t collect probe timing information" << endl |
1c0b94ef | 139 | #ifdef HAVE_LIBSQLITE3 |
5f0a03a6 | 140 | << " -q generate information on tapset coverage" << endl |
1c0b94ef | 141 | #endif /* HAVE_LIBSQLITE3 */ |
2f54c4fe DB |
142 | << " --unprivileged" << endl |
143 | << " restrict usage to features available to unprivileged users" << endl | |
05ec91b4 | 144 | #if 0 /* PR6864: disable temporarily; should merge with -d somehow */ |
5f0a03a6 JK |
145 | << " --kelf make do with symbol table from vmlinux" << endl |
146 | << " --kmap[=FILE]" << endl | |
147 | << " make do with symbol table from nm listing" << endl | |
05ec91b4 FCE |
148 | #endif |
149 | // Formerly present --ignore-{vmlinux,dwarf} options are for testsuite use | |
150 | // only, and don't belong in the eyesight of a plain user. | |
3bd0d4df | 151 | << " --skip-badvars" << endl |
83b38ce6 | 152 | << " substitute zero for bad context $variables" << endl |
c3a3c0c9 | 153 | << endl |
d5d7c2cc | 154 | ; |
2b066ec1 | 155 | |
277c1957 | 156 | exit (exitcode); |
2b066ec1 FCE |
157 | } |
158 | ||
159 | ||
d0bfd2ac NT |
160 | static void uniq_list(list<string>& l) |
161 | { | |
162 | list<string> r; | |
163 | set<string> s; | |
164 | ||
165 | for (list<string>::iterator i = l.begin(); i != l.end(); ++i) { | |
166 | s.insert(*i); | |
167 | } | |
168 | ||
169 | for (list<string>::iterator i = l.begin(); i != l.end(); ++i) { | |
170 | if (s.find(*i) != s.end()) { | |
171 | s.erase(*i); | |
172 | r.push_back(*i); | |
173 | } | |
174 | } | |
175 | ||
176 | l.clear(); | |
177 | l.assign(r.begin(), r.end()); | |
178 | } | |
179 | ||
1b78aef5 DS |
180 | static void |
181 | printscript(systemtap_session& s, ostream& o) | |
182 | { | |
16442b90 | 183 | if (s.listing_mode) |
83d7fcdc | 184 | { |
16442b90 | 185 | // We go through some heroic measures to produce clean output. |
c39cdd55 WH |
186 | // Record the alias and probe pointer as <name, set<derived_probe *> > |
187 | map<string,set<derived_probe *> > probe_list; | |
83d7fcdc | 188 | |
c39cdd55 | 189 | // Pre-process the probe alias |
16442b90 | 190 | for (unsigned i=0; i<s.probes.size(); i++) |
9ba8c134 | 191 | { |
f76427a2 FCE |
192 | if (pending_interrupts) return; |
193 | ||
16442b90 FCE |
194 | derived_probe* p = s.probes[i]; |
195 | // NB: p->basest() is not so interesting; | |
196 | // p->almost_basest() doesn't quite work, so ... | |
197 | vector<probe*> chain; | |
198 | p->collect_derivation_chain (chain); | |
199 | probe* second = (chain.size()>1) ? chain[chain.size()-2] : chain[0]; | |
200 | ||
c72aa911 JS |
201 | #if 0 // dump everything about the derivation chain |
202 | p->printsig(cerr); cerr << endl; | |
203 | cerr << "chain[" << chain.size() << "]:" << endl; | |
204 | for (unsigned j=0; j<chain.size(); j++) | |
205 | { | |
206 | cerr << " [" << j << "]: " << endl; | |
207 | cerr << "\tlocations[" << chain[j]->locations.size() << "]:" << endl; | |
208 | for (unsigned k=0; k<chain[j]->locations.size(); k++) | |
209 | { | |
210 | cerr << "\t [" << k << "]: "; | |
211 | chain[j]->locations[k]->print(cerr); | |
212 | cerr << endl; | |
213 | } | |
214 | const probe_alias *a = chain[j]->get_alias(); | |
215 | if (a) | |
216 | { | |
217 | cerr << "\taliases[" << a->alias_names.size() << "]:" << endl; | |
218 | for (unsigned k=0; k<a->alias_names.size(); k++) | |
219 | { | |
220 | cerr << "\t [" << k << "]: "; | |
221 | a->alias_names[k]->print(cerr); | |
222 | cerr << endl; | |
223 | } | |
224 | } | |
225 | } | |
16442b90 FCE |
226 | #endif |
227 | ||
228 | stringstream tmps; | |
7fb2f650 FCE |
229 | const probe_alias *a = second->get_alias(); |
230 | if (a) | |
231 | { | |
232 | assert (a->alias_names.size() >= 1); | |
233 | a->alias_names[0]->print(tmps); // XXX: [0] is arbitrary; perhaps print all | |
dff50e09 | 234 | } |
7fb2f650 FCE |
235 | else |
236 | { | |
237 | assert (second->locations.size() >= 1); | |
238 | second->locations[0]->print(tmps); // XXX: [0] is less arbitrary here, but still ... | |
239 | } | |
240 | string pp = tmps.str(); | |
16442b90 FCE |
241 | |
242 | // Now duplicate-eliminate. An alias may have expanded to | |
243 | // several actual derived probe points, but we only want to | |
244 | // print the alias head name once. | |
c39cdd55 WH |
245 | probe_list[pp].insert(p); |
246 | } | |
247 | ||
248 | // print probe name and variables if there | |
249 | for (map<string, set<derived_probe *> >::iterator it=probe_list.begin(); it!=probe_list.end(); ++it) | |
250 | { | |
251 | o << it->first; // probe name or alias | |
252 | ||
253 | // Print the locals and arguments for -L mode only | |
254 | if (s.listing_mode_vars) | |
16442b90 | 255 | { |
d0bfd2ac NT |
256 | map<string,unsigned> var_count; // format <"name:type",count> |
257 | map<string,unsigned> arg_count; | |
258 | list<string> var_list; | |
259 | list<string> arg_list; | |
c39cdd55 WH |
260 | // traverse set<derived_probe *> to collect all locals and arguments |
261 | for (set<derived_probe *>::iterator ix=it->second.begin(); ix!=it->second.end(); ++ix) | |
8c39844b | 262 | { |
c39cdd55 WH |
263 | derived_probe* p = *ix; |
264 | // collect available locals of the probe | |
8c39844b JS |
265 | for (unsigned j=0; j<p->locals.size(); j++) |
266 | { | |
c39cdd55 | 267 | stringstream tmps; |
8c39844b | 268 | vardecl* v = p->locals[j]; |
c39cdd55 | 269 | v->printsig (tmps); |
d0bfd2ac NT |
270 | var_count[tmps.str()]++; |
271 | var_list.push_back(tmps.str()); | |
8c39844b | 272 | } |
c39cdd55 | 273 | // collect arguments of the probe if there |
d0bfd2ac | 274 | list<string> arg_set; |
c39cdd55 | 275 | p->getargs(arg_set); |
d0bfd2ac NT |
276 | for (list<string>::iterator ia=arg_set.begin(); ia!=arg_set.end(); ++ia) { |
277 | arg_count[*ia]++; | |
278 | arg_list.push_back(*ia); | |
279 | } | |
8c39844b | 280 | } |
d0bfd2ac NT |
281 | |
282 | uniq_list(arg_list); | |
283 | uniq_list(var_list); | |
284 | ||
c39cdd55 | 285 | // print the set-intersection only |
d0bfd2ac NT |
286 | for (list<string>::iterator ir=var_list.begin(); ir!=var_list.end(); ++ir) |
287 | if (var_count.find(*ir)->second == it->second.size()) // print locals | |
288 | o << " " << *ir; | |
289 | for (list<string>::iterator ir=arg_list.begin(); ir!=arg_list.end(); ++ir) | |
290 | if (arg_count.find(*ir)->second == it->second.size()) // print arguments | |
291 | o << " " << *ir; | |
16442b90 | 292 | } |
c39cdd55 | 293 | o << endl; |
9ba8c134 | 294 | } |
1b78aef5 | 295 | } |
16442b90 | 296 | else |
1b78aef5 | 297 | { |
16442b90 FCE |
298 | if (s.embeds.size() > 0) |
299 | o << "# global embedded code" << endl; | |
300 | for (unsigned i=0; i<s.embeds.size(); i++) | |
1b78aef5 | 301 | { |
f76427a2 | 302 | if (pending_interrupts) return; |
16442b90 FCE |
303 | embeddedcode* ec = s.embeds[i]; |
304 | ec->print (o); | |
305 | o << endl; | |
306 | } | |
dff50e09 | 307 | |
16442b90 FCE |
308 | if (s.globals.size() > 0) |
309 | o << "# globals" << endl; | |
310 | for (unsigned i=0; i<s.globals.size(); i++) | |
1b78aef5 | 311 | { |
f76427a2 | 312 | if (pending_interrupts) return; |
16442b90 FCE |
313 | vardecl* v = s.globals[i]; |
314 | v->printsig (o); | |
315 | if (s.verbose && v->init) | |
316 | { | |
317 | o << " = "; | |
318 | v->init->print(o); | |
319 | } | |
320 | o << endl; | |
321 | } | |
dff50e09 | 322 | |
16442b90 FCE |
323 | if (s.functions.size() > 0) |
324 | o << "# functions" << endl; | |
f76427a2 | 325 | for (map<string,functiondecl*>::iterator it = s.functions.begin(); it != s.functions.end(); it++) |
1b78aef5 | 326 | { |
f76427a2 FCE |
327 | if (pending_interrupts) return; |
328 | functiondecl* f = it->second; | |
16442b90 FCE |
329 | f->printsig (o); |
330 | o << endl; | |
331 | if (f->locals.size() > 0) | |
332 | o << " # locals" << endl; | |
333 | for (unsigned j=0; j<f->locals.size(); j++) | |
334 | { | |
335 | vardecl* v = f->locals[j]; | |
336 | o << " "; | |
337 | v->printsig (o); | |
338 | o << endl; | |
339 | } | |
340 | if (s.verbose) | |
341 | { | |
342 | f->body->print (o); | |
343 | o << endl; | |
344 | } | |
345 | } | |
dff50e09 | 346 | |
16442b90 FCE |
347 | if (s.probes.size() > 0) |
348 | o << "# probes" << endl; | |
349 | for (unsigned i=0; i<s.probes.size(); i++) | |
1b78aef5 | 350 | { |
f76427a2 | 351 | if (pending_interrupts) return; |
16442b90 FCE |
352 | derived_probe* p = s.probes[i]; |
353 | p->printsig (o); | |
354 | o << endl; | |
355 | if (p->locals.size() > 0) | |
356 | o << " # locals" << endl; | |
357 | for (unsigned j=0; j<p->locals.size(); j++) | |
358 | { | |
359 | vardecl* v = p->locals[j]; | |
360 | o << " "; | |
361 | v->printsig (o); | |
362 | o << endl; | |
363 | } | |
364 | if (s.verbose) | |
365 | { | |
366 | p->body->print (o); | |
367 | o << endl; | |
368 | } | |
369 | } | |
370 | } | |
277f2b79 | 371 | } |
1b78aef5 | 372 | |
49abf162 FCE |
373 | |
374 | int pending_interrupts; | |
375 | ||
376 | extern "C" | |
82737bef | 377 | void handle_interrupt (int sig) |
49abf162 | 378 | { |
4cc40e82 | 379 | kill_stap_spawn(sig); |
49abf162 | 380 | pending_interrupts ++; |
4cc40e82 | 381 | if (pending_interrupts > 1) // XXX: should be configurable? time-based? |
49abf162 FCE |
382 | { |
383 | char msg[] = "Too many interrupts received, exiting.\n"; | |
384 | int rc = write (2, msg, sizeof(msg)-1); | |
9ceec314 | 385 | if (rc) {/* Do nothing; we don't care if our last gasp went out. */ ;} |
49abf162 FCE |
386 | _exit (1); |
387 | } | |
388 | } | |
389 | ||
390 | ||
3972b443 DS |
391 | void |
392 | setup_signals (sighandler_t handler) | |
393 | { | |
394 | struct sigaction sa; | |
395 | ||
396 | sa.sa_handler = handler; | |
397 | sigemptyset (&sa.sa_mask); | |
398 | if (handler != SIG_IGN) | |
399 | { | |
400 | sigaddset (&sa.sa_mask, SIGHUP); | |
401 | sigaddset (&sa.sa_mask, SIGPIPE); | |
402 | sigaddset (&sa.sa_mask, SIGINT); | |
403 | sigaddset (&sa.sa_mask, SIGTERM); | |
404 | } | |
4cc40e82 | 405 | sa.sa_flags = SA_RESTART; |
3972b443 DS |
406 | |
407 | sigaction (SIGHUP, &sa, NULL); | |
408 | sigaction (SIGPIPE, &sa, NULL); | |
409 | sigaction (SIGINT, &sa, NULL); | |
410 | sigaction (SIGTERM, &sa, NULL); | |
411 | } | |
412 | ||
561079c8 FCE |
413 | void setup_kernel_release (systemtap_session &s, const char* kstr) |
414 | { | |
4d0a3330 KS |
415 | if (kstr[0] == '/') // fully specified path |
416 | { | |
417 | s.kernel_build_tree = kstr; | |
418 | string version_file_name = s.kernel_build_tree + "/include/config/kernel.release"; | |
419 | // The file include/config/kernel.release within the | |
420 | // build tree is used to pull out the version information | |
421 | ifstream version_file (version_file_name.c_str()); | |
422 | if (version_file.fail ()) | |
423 | { | |
424 | cerr << "Missing " << version_file_name << endl; | |
425 | exit(1); | |
426 | } | |
427 | else | |
428 | { | |
429 | char c; | |
430 | s.kernel_release = ""; | |
431 | while (version_file.get(c) && c != '\n') | |
432 | s.kernel_release.push_back(c); | |
433 | } | |
434 | } | |
435 | else | |
436 | { | |
437 | s.kernel_release = string (kstr); | |
438 | s.kernel_build_tree = "/lib/modules/" + s.kernel_release + "/build"; | |
439 | } | |
440 | } | |
3972b443 | 441 | |
561079c8 | 442 | |
6861e056 | 443 | int parse_kernel_config (systemtap_session &s) |
561079c8 FCE |
444 | { |
445 | // PR10702: pull config options | |
446 | string kernel_config_file = s.kernel_build_tree + "/.config"; | |
6861e056 CW |
447 | struct stat st; |
448 | int rc = stat(kernel_config_file.c_str(), &st); | |
449 | if (rc != 0) | |
450 | { | |
451 | clog << "Checking \"" << kernel_config_file << "\" failed: " << strerror(errno) << endl | |
452 | << "Ensure kernel development headers & makefiles are installed." << endl; | |
453 | return rc; | |
454 | } | |
455 | ||
561079c8 FCE |
456 | ifstream kcf (kernel_config_file.c_str()); |
457 | string line; | |
458 | while (getline (kcf, line)) | |
459 | { | |
60d98537 | 460 | if (!startswith(line, "CONFIG_")) continue; |
561079c8 FCE |
461 | size_t off = line.find('='); |
462 | if (off == string::npos) continue; | |
463 | string key = line.substr(0, off); | |
464 | string value = line.substr(off+1, string::npos); | |
465 | s.kernel_config[key] = value; | |
466 | } | |
467 | if (s.verbose > 2) | |
468 | clog << "Parsed kernel \"" << kernel_config_file << "\", number of tuples: " << s.kernel_config.size() << endl; | |
469 | ||
470 | kcf.close(); | |
6861e056 | 471 | return 0; |
561079c8 FCE |
472 | } |
473 | ||
28b768e1 MW |
474 | /* |
475 | * Returns a string describing memory resource usage. | |
476 | * Since it seems getrusage() doesn't maintain the mem related fields, | |
477 | * this routine parses /proc/self/statm to get the statistics. | |
478 | */ | |
479 | static string | |
480 | getmemusage () | |
481 | { | |
71b6e9b2 | 482 | static long sz = sysconf(_SC_PAGESIZE); |
28b768e1 MW |
483 | |
484 | long pages, kb; | |
485 | ostringstream oss; | |
486 | ifstream statm("/proc/self/statm"); | |
487 | statm >> pages; | |
488 | kb = pages * sz / 1024; | |
489 | oss << "using " << kb << "virt/"; | |
490 | statm >> pages; | |
491 | kb = pages * sz / 1024; | |
492 | oss << kb << "res/"; | |
493 | statm >> pages; | |
494 | kb = pages * sz / 1024; | |
495 | oss << kb << "shr kb, "; | |
496 | return oss.str(); | |
497 | } | |
498 | ||
2b066ec1 FCE |
499 | int |
500 | main (int argc, char * const argv []) | |
501 | { | |
2b066ec1 FCE |
502 | string cmdline_script; // -e PROGRAM |
503 | string script_file; // FILE | |
504 | bool have_script = false; | |
fc52ef5b | 505 | bool save_module = false; |
f4b28491 FCE |
506 | |
507 | // Initialize defaults | |
508 | systemtap_session s; | |
509 | struct utsname buf; | |
510 | (void) uname (& buf); | |
511 | s.kernel_release = string (buf.release); | |
b5e66ada FCE |
512 | s.kernel_build_tree = "/lib/modules/" + s.kernel_release + "/build"; |
513 | ||
d27e6fd5 FCE |
514 | // PR4186: Copy logic from coreutils uname (uname -i) to squash |
515 | // i?86->i386. Actually, copy logic from linux top-level Makefile | |
516 | // to squash uname -m -> $(SUBARCH). | |
517 | ||
518 | string machine = buf.machine; | |
519 | if (machine == "i486") machine = "i386"; | |
520 | else if (machine == "i586") machine = "i386"; | |
521 | else if (machine == "i686") machine = "i386"; | |
522 | else if (machine == "sun4u") machine = "sparc64"; | |
523 | else if (machine.substr(0,3) == "arm") machine = "arm"; | |
524 | else if (machine == "sa110") machine = "arm"; | |
525 | else if (machine == "s390x") machine = "s390"; | |
526 | else if (machine.substr(0,3) == "ppc") machine = "powerpc"; | |
527 | else if (machine.substr(0,4) == "mips") machine = "mips"; | |
528 | else if (machine.substr(0,3) == "sh2") machine = "sh"; | |
529 | else if (machine.substr(0,3) == "sh3") machine = "sh"; | |
530 | else if (machine.substr(0,3) == "sh4") machine = "sh"; | |
531 | ||
532 | s.architecture = machine; | |
e0b4e89d | 533 | for (unsigned i=0; i<5; i++) s.perpass_verbose[i]=0; |
a9e8f7e0 | 534 | s.timing = false; |
377b8831 | 535 | s.guru_mode = false; |
16d8de1b | 536 | s.bulk_mode = false; |
cbfbbf69 | 537 | s.unoptimized = false; |
a9e8f7e0 | 538 | s.suppress_warnings = false; |
57a56e00 | 539 | s.panic_warnings = false; |
16442b90 | 540 | s.listing_mode = false; |
8c39844b | 541 | s.listing_mode_vars = false; |
44f75386 FCE |
542 | |
543 | #ifdef ENABLE_PROLOGUES | |
544 | s.prologue_searching = true; | |
545 | #else | |
546 | s.prologue_searching = false; | |
547 | #endif | |
548 | ||
16d8de1b | 549 | s.buffer_size = 0; |
f4b28491 | 550 | s.last_pass = 5; |
aca66a36 JS |
551 | s.module_name = "stap_" + lex_cast(getpid()); |
552 | s.stapconf_name = "stapconf_" + lex_cast(getpid()) + ".h"; | |
08c68653 | 553 | s.output_file = ""; // -o FILE |
f4b28491 | 554 | s.keep_tmpdir = false; |
4c5ff1bb MH |
555 | s.cmd = ""; |
556 | s.target_pid = 0; | |
f1bad60c | 557 | s.symtab = false; |
1b78aef5 | 558 | s.use_cache = true; |
63d530ab | 559 | s.use_script_cache = true; |
d105f664 | 560 | s.poison_cache = false; |
c3a3c0c9 | 561 | s.tapset_compile_coverage = false; |
12dc24bc | 562 | s.need_uprobes = false; |
5f0a03a6 JK |
563 | s.consult_symtab = false; |
564 | s.ignore_vmlinux = false; | |
565 | s.ignore_dwarf = false; | |
2fa2a091 | 566 | s.load_only = false; |
28f569c2 | 567 | s.skip_badvars = false; |
2f54c4fe | 568 | s.unprivileged = false; |
c72dd3c7 | 569 | s.omit_werror = false; |
a0ace491 DB |
570 | bool client_options = false; |
571 | string client_options_disallowed; | |
2f54c4fe | 572 | |
4c797c5e | 573 | // Location of our signing certificate. |
2f54c4fe DB |
574 | // If we're root, use the database in SYSCONFDIR, otherwise |
575 | // use the one in our $HOME directory. */ | |
576 | if (getuid() == 0) | |
577 | s.cert_db_path = SYSCONFDIR "/systemtap/ssl/server"; | |
578 | else | |
579 | s.cert_db_path = getenv("HOME") + string ("/.systemtap/ssl/server"); | |
24cb178f FCE |
580 | |
581 | const char* s_p = getenv ("SYSTEMTAP_TAPSET"); | |
dff50e09 | 582 | if (s_p != NULL) |
ec819dc3 | 583 | { |
24cb178f | 584 | s.include_path.push_back (s_p); |
ec819dc3 | 585 | } |
24cb178f | 586 | else |
ec819dc3 | 587 | { |
24cb178f | 588 | s.include_path.push_back (string(PKGDATADIR) + "/tapset"); |
ec819dc3 | 589 | } |
24cb178f FCE |
590 | |
591 | const char* s_r = getenv ("SYSTEMTAP_RUNTIME"); | |
592 | if (s_r != NULL) | |
593 | s.runtime_path = s_r; | |
594 | else | |
595 | s.runtime_path = string(PKGDATADIR) + "/runtime"; | |
f4b28491 | 596 | |
1b78aef5 DS |
597 | const char* s_d = getenv ("SYSTEMTAP_DIR"); |
598 | if (s_d != NULL) | |
599 | s.data_path = s_d; | |
600 | else | |
601 | s.data_path = get_home_directory() + string("/.systemtap"); | |
602 | if (create_dir(s.data_path.c_str()) == 1) | |
603 | { | |
604 | const char* e = strerror (errno); | |
f4d5049b FCE |
605 | if (! s.suppress_warnings) |
606 | cerr << "Warning: failed to create systemtap data directory (\"" | |
607 | << s.data_path << "\"): " << e | |
608 | << ", disabling cache support." << endl; | |
63d530ab | 609 | s.use_cache = s.use_script_cache = false; |
1b78aef5 DS |
610 | } |
611 | ||
612 | if (s.use_cache) | |
613 | { | |
614 | s.cache_path = s.data_path + "/cache"; | |
615 | if (create_dir(s.cache_path.c_str()) == 1) | |
616 | { | |
617 | const char* e = strerror (errno); | |
f4d5049b FCE |
618 | if (! s.suppress_warnings) |
619 | cerr << "Warning: failed to create cache directory (\"" | |
620 | << s.cache_path << "\"): " << e | |
621 | << ", disabling cache support." << endl; | |
63d530ab | 622 | s.use_cache = s.use_script_cache = false; |
1b78aef5 DS |
623 | } |
624 | } | |
625 | ||
36b66efa DB |
626 | // Location of our signing certificate. |
627 | // If we're root, use the database in SYSCONFDIR, otherwise | |
628 | // use the one in s.data_path. */ | |
629 | if (geteuid() == 0) | |
630 | s.cert_db_path = SYSCONFDIR "/systemtap/ssl/server"; | |
631 | else | |
632 | s.cert_db_path = s.data_path + "/ssl/server"; | |
633 | ||
c3a3c0c9 WC |
634 | const char* s_tc = getenv ("SYSTEMTAP_COVERAGE"); |
635 | if (s_tc != NULL) | |
636 | s.tapset_compile_coverage = true; | |
637 | ||
755cdd9b KS |
638 | const char* s_kr = getenv ("SYSTEMTAP_RELEASE"); |
639 | if (s_kr != NULL) { | |
4d0a3330 | 640 | setup_kernel_release(s, s_kr); |
755cdd9b KS |
641 | } |
642 | ||
2b066ec1 FCE |
643 | while (true) |
644 | { | |
5f0a03a6 | 645 | int long_opt; |
877bbb20 | 646 | char * num_endptr; |
5f0a03a6 JK |
647 | #define LONG_OPT_KELF 1 |
648 | #define LONG_OPT_KMAP 2 | |
649 | #define LONG_OPT_IGNORE_VMLINUX 3 | |
650 | #define LONG_OPT_IGNORE_DWARF 4 | |
e0b4e89d | 651 | #define LONG_OPT_VERBOSE_PASS 5 |
3bd0d4df | 652 | #define LONG_OPT_SKIP_BADVARS 6 |
4c797c5e | 653 | #define LONG_OPT_UNPRIVILEGED 7 |
c72dd3c7 PP |
654 | #define LONG_OPT_OMIT_WERROR 8 |
655 | #define LONG_OPT_CLIENT_OPTIONS 9 | |
83b38ce6 | 656 | #define LONG_OPT_HELP 10 |
d105f664 JS |
657 | #define LONG_OPT_DISABLE_CACHE 11 |
658 | #define LONG_OPT_POISON_CACHE 12 | |
659 | #define LONG_OPT_CLEAN_CACHE 13 | |
a9e8f7e0 | 660 | // NB: also see find_hash(), usage(), switch stmt below, stap.1 man page |
5f0a03a6 JK |
661 | static struct option long_options[] = { |
662 | { "kelf", 0, &long_opt, LONG_OPT_KELF }, | |
663 | { "kmap", 2, &long_opt, LONG_OPT_KMAP }, | |
664 | { "ignore-vmlinux", 0, &long_opt, LONG_OPT_IGNORE_VMLINUX }, | |
665 | { "ignore-dwarf", 0, &long_opt, LONG_OPT_IGNORE_DWARF }, | |
3bd0d4df | 666 | { "skip-badvars", 0, &long_opt, LONG_OPT_SKIP_BADVARS }, |
e0b4e89d | 667 | { "vp", 1, &long_opt, LONG_OPT_VERBOSE_PASS }, |
2f54c4fe | 668 | { "unprivileged", 0, &long_opt, LONG_OPT_UNPRIVILEGED }, |
c72dd3c7 PP |
669 | #define OWE5 "tter" |
670 | #define OWE1 "uild-" | |
671 | #define OWE6 "fu-kb" | |
672 | #define OWE2 "i-kno" | |
673 | #define OWE4 "st" | |
674 | #define OWE3 "w-be" | |
675 | { OWE4 OWE6 OWE1 OWE2 OWE3 OWE5, 0, &long_opt, LONG_OPT_OMIT_WERROR }, | |
a0ace491 | 676 | { "client-options", 0, &long_opt, LONG_OPT_CLIENT_OPTIONS }, |
83b38ce6 | 677 | { "help", 0, &long_opt, LONG_OPT_HELP }, |
d105f664 JS |
678 | { "disable-cache", 0, &long_opt, LONG_OPT_DISABLE_CACHE }, |
679 | { "poison-cache", 0, &long_opt, LONG_OPT_POISON_CACHE }, | |
680 | { "clean-cache", 0, &long_opt, LONG_OPT_CLEAN_CACHE }, | |
5f0a03a6 JK |
681 | { NULL, 0, NULL, 0 } |
682 | }; | |
57a56e00 | 683 | int grc = getopt_long (argc, argv, "hVvtp:I:e:o:R:r:a:m:kgPc:x:D:bs:uqwl:d:L:FS:B:W", |
1392896d | 684 | long_options, NULL); |
2b066ec1 FCE |
685 | if (grc < 0) |
686 | break; | |
687 | switch (grc) | |
688 | { | |
c0de7a8d FCE |
689 | case 'V': |
690 | version (); | |
691 | exit (0); | |
692 | ||
bd2b1e68 | 693 | case 'v': |
e0b4e89d FCE |
694 | for (unsigned i=0; i<5; i++) |
695 | s.perpass_verbose[i] ++; | |
bd2b1e68 GH |
696 | break; |
697 | ||
4b17d6af | 698 | case 't': |
a9e8f7e0 FCE |
699 | s.timing = true; |
700 | break; | |
701 | ||
702 | case 'w': | |
703 | s.suppress_warnings = true; | |
4b17d6af WC |
704 | break; |
705 | ||
57a56e00 FCE |
706 | case 'W': |
707 | s.panic_warnings = true; | |
708 | break; | |
709 | ||
2b066ec1 | 710 | case 'p': |
877bbb20 SW |
711 | s.last_pass = (int)strtoul(optarg, &num_endptr, 10); |
712 | if (*num_endptr != '\0' || s.last_pass < 1 || s.last_pass > 5) | |
2b066ec1 | 713 | { |
277c1957 | 714 | cerr << "Invalid pass number (should be 1-5)." << endl; |
83b38ce6 | 715 | exit (1); |
2b066ec1 | 716 | } |
8afee8bb DB |
717 | if (s.listing_mode && s.last_pass != 2) |
718 | { | |
719 | cerr << "Listing (-l) mode implies pass 2." << endl; | |
83b38ce6 | 720 | exit (1); |
8afee8bb | 721 | } |
2b066ec1 FCE |
722 | break; |
723 | ||
724 | case 'I': | |
a0ace491 DB |
725 | if (client_options) |
726 | client_options_disallowed += client_options_disallowed.empty () ? "-I" : ", -I"; | |
f4b28491 | 727 | s.include_path.push_back (string (optarg)); |
2b066ec1 FCE |
728 | break; |
729 | ||
a8368458 | 730 | case 'd': |
f6ac00e8 MW |
731 | { |
732 | // At runtime user module names are resolved through their | |
733 | // canonical (absolute) path. | |
734 | const char *mpath = canonicalize_file_name (optarg); | |
735 | if (mpath == NULL) // Must be a kernel module name | |
736 | mpath = optarg; | |
737 | s.unwindsym_modules.insert (string (mpath)); | |
738 | // PR10228: trigger task-finder logic early if -d /USER-MODULE/ | |
739 | // given. | |
740 | if (mpath[0] == '/') | |
741 | enable_task_finder (s); | |
742 | break; | |
743 | } | |
a8368458 | 744 | |
2b066ec1 FCE |
745 | case 'e': |
746 | if (have_script) | |
277c1957 DS |
747 | { |
748 | cerr << "Only one script can be given on the command line." | |
749 | << endl; | |
83b38ce6 | 750 | exit (1); |
277c1957 | 751 | } |
2b066ec1 FCE |
752 | cmdline_script = string (optarg); |
753 | have_script = true; | |
754 | break; | |
755 | ||
756 | case 'o': | |
c0d1b5a0 | 757 | // NB: client_options not a problem, since pass 1-4 does not use output_file. |
08c68653 | 758 | s.output_file = string (optarg); |
2b066ec1 FCE |
759 | break; |
760 | ||
f4b28491 | 761 | case 'R': |
83b38ce6 | 762 | if (client_options) { cerr << "ERROR: -R invalid with --client-options" << endl; exit(1); } |
f4b28491 FCE |
763 | s.runtime_path = string (optarg); |
764 | break; | |
765 | ||
766 | case 'm': | |
a0ace491 DB |
767 | if (client_options) |
768 | client_options_disallowed += client_options_disallowed.empty () ? "-m" : ", -m"; | |
f4b28491 | 769 | s.module_name = string (optarg); |
fc52ef5b | 770 | save_module = true; |
c0d1b5a0 | 771 | // XXX: convert to assert_regexp_match() |
3b942fed | 772 | { |
3b942fed DS |
773 | // If the module name ends with '.ko', chop it off since |
774 | // modutils doesn't like modules named 'foo.ko.ko'. | |
60d98537 | 775 | if (endswith(s.module_name, ".ko")) |
3b942fed | 776 | { |
60d98537 | 777 | s.module_name.erase(s.module_name.size() - 3); |
3b942fed DS |
778 | cerr << "Truncating module name to '" << s.module_name |
779 | << "'" << endl; | |
780 | } | |
781 | ||
782 | // Make sure an empty module name wasn't specified (-m "") | |
60d98537 | 783 | if (s.module_name.empty()) |
3b942fed DS |
784 | { |
785 | cerr << "Module name cannot be empty." << endl; | |
83b38ce6 | 786 | exit(1); |
3b942fed DS |
787 | } |
788 | ||
789 | // Make sure the module name is only composed of the | |
790 | // following chars: [_a-zA-Z0-9] | |
791 | const string identchars("_" "abcdefghijklmnopqrstuvwxyz" | |
792 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "0123456789"); | |
793 | if (s.module_name.find_first_not_of(identchars) != string::npos) | |
794 | { | |
795 | cerr << "Invalid module name (must only be composed of" | |
796 | " characters [_a-zA-Z0-9])." << endl; | |
83b38ce6 | 797 | exit(1); |
3b942fed | 798 | } |
98aab489 DS |
799 | |
800 | // Make sure module name isn't too long. | |
801 | if (s.module_name.size() >= (MODULE_NAME_LEN - 1)) | |
802 | { | |
803 | s.module_name.resize(MODULE_NAME_LEN - 1); | |
804 | cerr << "Truncating module name to '" << s.module_name | |
805 | << "'" << endl; | |
806 | } | |
3b942fed DS |
807 | } |
808 | ||
63d530ab | 809 | s.use_script_cache = false; |
f4b28491 FCE |
810 | break; |
811 | ||
812 | case 'r': | |
c0d1b5a0 | 813 | if (client_options) // NB: no paths! |
cc9e5488 | 814 | assert_regexp_match("-r parameter from client", optarg, "^[a-z0-9_.-]+$"); |
4d0a3330 | 815 | setup_kernel_release(s, optarg); |
f4b28491 FCE |
816 | break; |
817 | ||
1392896d | 818 | case 'a': |
c0d1b5a0 FCE |
819 | assert_regexp_match("-a parameter", optarg, "^[a-z0-9_-]+$"); |
820 | s.architecture = string(optarg); | |
1392896d FCE |
821 | break; |
822 | ||
f4b28491 FCE |
823 | case 'k': |
824 | s.keep_tmpdir = true; | |
63d530ab | 825 | s.use_script_cache = false; /* User wants to keep a usable build tree. */ |
f4b28491 FCE |
826 | break; |
827 | ||
377b8831 FCE |
828 | case 'g': |
829 | s.guru_mode = true; | |
830 | break; | |
831 | ||
44f75386 FCE |
832 | case 'P': |
833 | s.prologue_searching = true; | |
834 | break; | |
835 | ||
16d8de1b TZ |
836 | case 'b': |
837 | s.bulk_mode = true; | |
16d8de1b TZ |
838 | break; |
839 | ||
cbfbbf69 FCE |
840 | case 'u': |
841 | s.unoptimized = true; | |
842 | break; | |
843 | ||
16d8de1b | 844 | case 's': |
5d8d4509 SW |
845 | s.buffer_size = (int) strtoul (optarg, &num_endptr, 10); |
846 | if (*num_endptr != '\0' || s.buffer_size < 1 || s.buffer_size > 4095) | |
16d8de1b | 847 | { |
453b58ed | 848 | cerr << "Invalid buffer size (should be 1-4095)." << endl; |
83b38ce6 | 849 | exit(1); |
16d8de1b TZ |
850 | } |
851 | break; | |
852 | ||
4c5ff1bb MH |
853 | case 'c': |
854 | s.cmd = string (optarg); | |
855 | break; | |
856 | ||
857 | case 'x': | |
c897e941 SW |
858 | s.target_pid = (int) strtoul(optarg, &num_endptr, 10); |
859 | if (*num_endptr != '\0') | |
860 | { | |
861 | cerr << "Invalid target process ID number." << endl; | |
83b38ce6 | 862 | exit (1); |
c897e941 | 863 | } |
4c5ff1bb MH |
864 | break; |
865 | ||
ed10c639 | 866 | case 'D': |
c8408b45 | 867 | assert_regexp_match ("-D parameter", optarg, "^[a-z_][a-z_0-9]*(=-?[a-z_0-9]+)?$"); |
a0ace491 DB |
868 | if (client_options) |
869 | client_options_disallowed += client_options_disallowed.empty () ? "-D" : ", -D"; | |
ed10c639 FCE |
870 | s.macros.push_back (string (optarg)); |
871 | break; | |
872 | ||
701c41be | 873 | case 'S': |
c0d1b5a0 | 874 | assert_regexp_match ("-S parameter", optarg, "^[0-9]+(,[0-9]+)?$"); |
701c41be MH |
875 | s.size_option = string (optarg); |
876 | break; | |
877 | ||
c3a3c0c9 | 878 | case 'q': |
83b38ce6 | 879 | if (client_options) { cerr << "ERROR: -q invalid with --client-options" << endl; exit(1); } |
c3a3c0c9 WC |
880 | s.tapset_compile_coverage = true; |
881 | break; | |
882 | ||
2b066ec1 | 883 | case 'h': |
277c1957 DS |
884 | usage (s, 0); |
885 | break; | |
886 | ||
d4e35ac8 | 887 | case 'L': |
8c39844b | 888 | s.listing_mode_vars = true; |
1044139f | 889 | s.unoptimized = true; // This causes retention of variables for listing_mode |
d4e35ac8 | 890 | |
16442b90 | 891 | case 'l': |
4bd48e4b | 892 | s.suppress_warnings = true; |
16442b90 FCE |
893 | s.listing_mode = true; |
894 | s.last_pass = 2; | |
895 | if (have_script) | |
896 | { | |
897 | cerr << "Only one script can be given on the command line." | |
898 | << endl; | |
83b38ce6 | 899 | exit (1); |
16442b90 FCE |
900 | } |
901 | cmdline_script = string("probe ") + string(optarg) + " {}"; | |
902 | have_script = true; | |
903 | break; | |
904 | ||
2fa2a091 NT |
905 | case 'F': |
906 | s.load_only = true; | |
907 | break; | |
908 | ||
1392896d | 909 | case 'B': |
83b38ce6 | 910 | if (client_options) { cerr << "ERROR: -B invalid with --client-options" << endl; exit(1); } |
c0d1b5a0 | 911 | s.kbuildflags.push_back (string (optarg)); |
1392896d FCE |
912 | break; |
913 | ||
5f0a03a6 JK |
914 | case 0: |
915 | switch (long_opt) | |
916 | { | |
917 | case LONG_OPT_KELF: | |
918 | s.consult_symtab = true; | |
919 | break; | |
920 | case LONG_OPT_KMAP: | |
921 | // Leave s.consult_symtab unset for now, to ease error checking. | |
922 | if (!s.kernel_symtab_path.empty()) | |
923 | { | |
924 | cerr << "You can't specify multiple --kmap options." << endl; | |
83b38ce6 | 925 | exit(1); |
5f0a03a6 JK |
926 | } |
927 | if (optarg) | |
928 | s.kernel_symtab_path = optarg; | |
929 | else | |
5f0a03a6 JK |
930 | s.kernel_symtab_path = PATH_TBD; |
931 | break; | |
932 | case LONG_OPT_IGNORE_VMLINUX: | |
933 | s.ignore_vmlinux = true; | |
934 | break; | |
935 | case LONG_OPT_IGNORE_DWARF: | |
936 | s.ignore_dwarf = true; | |
937 | break; | |
e0b4e89d FCE |
938 | case LONG_OPT_VERBOSE_PASS: |
939 | { | |
940 | bool ok = true; | |
941 | if (strlen(optarg) < 1 || strlen(optarg) > 5) | |
942 | ok = false; | |
943 | if (ok) | |
b688229d | 944 | for (unsigned i=0; i<strlen(optarg); i++) |
e0b4e89d FCE |
945 | if (isdigit (optarg[i])) |
946 | s.perpass_verbose[i] += optarg[i]-'0'; | |
947 | else | |
948 | ok = false; | |
949 | ||
950 | if (! ok) | |
951 | { | |
952 | cerr << "Invalid --vp argument: it takes 1 to 5 digits." << endl; | |
83b38ce6 | 953 | exit (1); |
e0b4e89d FCE |
954 | } |
955 | // NB: we don't do this: s.last_pass = strlen(optarg); | |
956 | break; | |
957 | } | |
3bd0d4df RA |
958 | case LONG_OPT_SKIP_BADVARS: |
959 | s.skip_badvars = true; | |
960 | break; | |
2f54c4fe DB |
961 | case LONG_OPT_UNPRIVILEGED: |
962 | s.unprivileged = true; | |
cf4a6df8 FCE |
963 | /* NB: for server security, it is essential that once this flag is |
964 | set, no future flag be able to unset it. */ | |
2f54c4fe | 965 | break; |
c72dd3c7 PP |
966 | case LONG_OPT_OMIT_WERROR: |
967 | s.omit_werror = true; | |
968 | break; | |
a0ace491 DB |
969 | case LONG_OPT_CLIENT_OPTIONS: |
970 | client_options = true; | |
3c070417 | 971 | break; |
83b38ce6 FCE |
972 | case LONG_OPT_HELP: |
973 | usage (s, 0); | |
974 | break; | |
d105f664 JS |
975 | |
976 | // The caching options should not be available to server clients | |
977 | case LONG_OPT_DISABLE_CACHE: | |
978 | if (client_options) { | |
979 | cerr << "ERROR: --disable-cache is invalid with --client-options" << endl; | |
980 | exit(1); | |
981 | } | |
982 | s.use_cache = s.use_script_cache = false; | |
983 | break; | |
984 | case LONG_OPT_POISON_CACHE: | |
985 | if (client_options) { | |
986 | cerr << "ERROR: --poison-cache is invalid with --client-options" << endl; | |
987 | exit(1); | |
988 | } | |
989 | s.poison_cache = true; | |
990 | break; | |
991 | case LONG_OPT_CLEAN_CACHE: | |
992 | if (client_options) { | |
993 | cerr << "ERROR: --clean-cache is invalid with --client-options" << endl; | |
994 | exit(1); | |
995 | } | |
996 | clean_cache(s); | |
997 | exit(0); | |
998 | ||
5f0a03a6 | 999 | default: |
83b38ce6 | 1000 | exit(1); |
5f0a03a6 JK |
1001 | } |
1002 | break; | |
1003 | ||
2b066ec1 | 1004 | default: |
83b38ce6 | 1005 | exit(1); |
277c1957 | 1006 | break; |
2b066ec1 FCE |
1007 | } |
1008 | } | |
1009 | ||
8f222481 | 1010 | // Check for options conflicts. |
75c2a31d | 1011 | |
cf4a6df8 FCE |
1012 | if (client_options && s.last_pass > 4) |
1013 | { | |
1014 | s.last_pass = 4; /* Quietly downgrade. Server passed through -p5 naively. */ | |
1015 | } | |
a0ace491 DB |
1016 | if (client_options && s.unprivileged && ! client_options_disallowed.empty ()) |
1017 | { | |
1018 | cerr << "You can't specify " << client_options_disallowed << " when --unprivileged is specified." << endl; | |
1019 | usage (s, 1); | |
1020 | } | |
75c2a31d FCE |
1021 | if ((s.cmd != "") && (s.target_pid)) |
1022 | { | |
1023 | cerr << "You can't specify -c and -x options together." << endl; | |
1024 | usage (s, 1); | |
1025 | } | |
1026 | if (s.unprivileged && s.guru_mode) | |
1027 | { | |
1028 | cerr << "You can't specify -g and --unprivileged together." << endl; | |
1029 | usage (s, 1); | |
1030 | } | |
1031 | if (!s.kernel_symtab_path.empty()) | |
1032 | { | |
1033 | if (s.consult_symtab) | |
1034 | { | |
1035 | cerr << "You can't specify --kelf and --kmap together." << endl; | |
1036 | usage (s, 1); | |
1037 | } | |
1038 | s.consult_symtab = true; | |
1039 | if (s.kernel_symtab_path == PATH_TBD) | |
1040 | s.kernel_symtab_path = string("/boot/System.map-") + s.kernel_release; | |
1041 | } | |
b5e66ada FCE |
1042 | // Warn in case the target kernel release doesn't match the running one. |
1043 | if (s.last_pass > 4 && | |
1044 | (string(buf.release) != s.kernel_release || | |
d27e6fd5 | 1045 | machine != s.architecture)) // NB: squashed ARCH by PR4186 logic |
b5e66ada FCE |
1046 | { |
1047 | if(! s.suppress_warnings) | |
1048 | cerr << "WARNING: kernel release/architecture mismatch with host forces last-pass 4." << endl; | |
1049 | s.last_pass = 4; | |
1050 | } | |
ea3f75ae | 1051 | |
2b066ec1 FCE |
1052 | for (int i = optind; i < argc; i++) |
1053 | { | |
1054 | if (! have_script) | |
1055 | { | |
1056 | script_file = string (argv[i]); | |
1057 | have_script = true; | |
1058 | } | |
1059 | else | |
f4b28491 | 1060 | s.args.push_back (string (argv[i])); |
2b066ec1 FCE |
1061 | } |
1062 | ||
1063 | // need a user file | |
83b38ce6 | 1064 | // NB: this is also triggered if stap is invoked with no arguments at all |
2b066ec1 | 1065 | if (! have_script) |
277c1957 DS |
1066 | { |
1067 | cerr << "A script must be specified." << endl; | |
1068 | usage(s, 1); | |
1069 | } | |
f4b28491 | 1070 | |
a929fd0f Z |
1071 | // translate path of runtime to absolute path |
1072 | if (s.runtime_path[0] != '/') | |
1073 | { | |
1074 | char cwd[PATH_MAX]; | |
1075 | if (getcwd(cwd, sizeof(cwd))) | |
1076 | { | |
1077 | s.runtime_path = string(cwd) + "/" + s.runtime_path; | |
1078 | } | |
1079 | } | |
1080 | ||
f4b28491 | 1081 | int rc = 0; |
c31df222 FCE |
1082 | |
1083 | // PASS 0: setting up | |
1084 | s.verbose = s.perpass_verbose[0]; | |
ce91eebd KS |
1085 | STAP_PROBE1(stap, pass0__start, &s); |
1086 | ||
2b066ec1 | 1087 | |
d0a7f5a9 FCE |
1088 | // For PR1477, we used to override $PATH and $LC_ALL and other stuff |
1089 | // here. We seem to use complete pathnames in | |
1090 | // buildrun.cxx/tapsets.cxx now, so this is not necessary. Further, | |
1091 | // it interferes with util.cxx:find_executable(), used for $PATH | |
1092 | // resolution. | |
861c2f28 | 1093 | |
197a4d62 JS |
1094 | s.kernel_base_release.assign(s.kernel_release, 0, s.kernel_release.find('-')); |
1095 | ||
2b066ec1 | 1096 | // arguments parsed; get down to business |
72d18b98 | 1097 | if (s.verbose > 1) |
c0e526f0 FCE |
1098 | { |
1099 | version (); | |
1100 | clog << "Session arch: " << s.architecture | |
1101 | << " release: " << s.kernel_release | |
1102 | << endl; | |
1103 | } | |
2b066ec1 | 1104 | |
f4b28491 FCE |
1105 | // Create a temporary directory to build within. |
1106 | // Be careful with this, as "s.tmpdir" is "rm -rf"'d at the end. | |
1107 | { | |
c72dc86c | 1108 | const char* tmpdir_env = getenv("TMPDIR"); |
ea8ea02c FCE |
1109 | if (! tmpdir_env) |
1110 | tmpdir_env = "/tmp"; | |
dff50e09 | 1111 | |
ea8ea02c FCE |
1112 | string stapdir = "/stapXXXXXX"; |
1113 | string tmpdirt = tmpdir_env + stapdir; | |
533af4f0 | 1114 | mode_t mask = umask(0); |
ea8ea02c | 1115 | const char* tmpdir = mkdtemp((char *)tmpdirt.c_str()); |
533af4f0 | 1116 | umask(mask); |
f4b28491 FCE |
1117 | if (! tmpdir) |
1118 | { | |
1119 | const char* e = strerror (errno); | |
ea8ea02c FCE |
1120 | cerr << "ERROR: cannot create temporary directory (\"" << tmpdirt << "\"): " << e << endl; |
1121 | exit (1); // die | |
f4b28491 FCE |
1122 | } |
1123 | else | |
1124 | s.tmpdir = tmpdir; | |
0d49d7bc | 1125 | |
b0ee93c4 | 1126 | if (s.verbose>1) |
0d49d7bc | 1127 | clog << "Created temporary directory \"" << s.tmpdir << "\"" << endl; |
f4b28491 | 1128 | } |
2b066ec1 | 1129 | |
561079c8 | 1130 | // Now that no further changes to s.kernel_build_tree can occur, let's use it. |
6861e056 CW |
1131 | if (parse_kernel_config (s) != 0) |
1132 | { | |
1133 | exit (1); | |
1134 | } | |
1135 | ||
561079c8 | 1136 | |
1b78aef5 DS |
1137 | // Create the name of the C source file within the temporary |
1138 | // directory. | |
1139 | s.translated_source = string(s.tmpdir) + "/" + s.module_name + ".c"; | |
1140 | ||
dff50e09 | 1141 | // Set up our handler to catch routine signals, to allow clean |
49abf162 | 1142 | // and reasonably timely exit. |
3972b443 | 1143 | setup_signals(&handle_interrupt); |
49abf162 | 1144 | |
ce91eebd KS |
1145 | STAP_PROBE1(stap, pass0__end, &s); |
1146 | ||
5ee1c56b FCE |
1147 | struct tms tms_before; |
1148 | times (& tms_before); | |
1d738eed FCE |
1149 | struct timeval tv_before; |
1150 | gettimeofday (&tv_before, NULL); | |
2b066ec1 FCE |
1151 | |
1152 | // PASS 1a: PARSING USER SCRIPT | |
ce91eebd | 1153 | STAP_PROBE1(stap, pass1a__start, &s); |
f59e98c4 FCE |
1154 | |
1155 | struct stat user_file_stat; | |
1156 | int user_file_stat_rc = -1; | |
1157 | ||
69c68955 | 1158 | if (script_file == "-") |
129be0ac FCE |
1159 | { |
1160 | s.user_file = parser::parse (s, cin, s.guru_mode); | |
1161 | user_file_stat_rc = fstat (STDIN_FILENO, & user_file_stat); | |
1162 | } | |
69c68955 | 1163 | else if (script_file != "") |
f59e98c4 FCE |
1164 | { |
1165 | s.user_file = parser::parse (s, script_file, s.guru_mode); | |
1166 | user_file_stat_rc = stat (script_file.c_str(), & user_file_stat); | |
1167 | } | |
2b066ec1 FCE |
1168 | else |
1169 | { | |
1170 | istringstream ii (cmdline_script); | |
177a8ead | 1171 | s.user_file = parser::parse (s, ii, s.guru_mode); |
2b066ec1 FCE |
1172 | } |
1173 | if (s.user_file == 0) | |
1174 | // syntax errors already printed | |
1175 | rc ++; | |
377b8831 | 1176 | |
5519d363 | 1177 | // Construct arch / kernel-versioning search path |
377b8831 | 1178 | vector<string> version_suffixes; |
6f9f33e2 | 1179 | string kvr = s.kernel_release; |
5519d363 KS |
1180 | const string& arch = s.architecture; |
1181 | // add full kernel-version-release (2.6.NN-FOOBAR) + arch | |
1182 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
377b8831 | 1183 | version_suffixes.push_back ("/" + kvr); |
5519d363 | 1184 | // add kernel version (2.6.NN) + arch |
197a4d62 JS |
1185 | if (kvr != s.kernel_base_release) { |
1186 | kvr = s.kernel_base_release; | |
6f9f33e2 JS |
1187 | version_suffixes.push_back ("/" + kvr + "/" + arch); |
1188 | version_suffixes.push_back ("/" + kvr); | |
5519d363 KS |
1189 | } |
1190 | // add kernel family (2.6) + arch | |
6f9f33e2 JS |
1191 | string::size_type dot1_index = kvr.find ('.'); |
1192 | string::size_type dot2_index = kvr.rfind ('.'); | |
1193 | while (dot2_index > dot1_index && dot2_index != string::npos) { | |
1194 | kvr.erase(dot2_index); | |
1195 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
1196 | version_suffixes.push_back ("/" + kvr); | |
1197 | dot2_index = kvr.rfind ('.'); | |
5519d363 KS |
1198 | } |
1199 | // add architecture search path | |
1200 | version_suffixes.push_back("/" + arch); | |
377b8831 FCE |
1201 | // add empty string as last element |
1202 | version_suffixes.push_back (""); | |
2b066ec1 FCE |
1203 | |
1204 | // PASS 1b: PARSING LIBRARY SCRIPTS | |
ce91eebd KS |
1205 | STAP_PROBE1(stap, pass1b__start, &s); |
1206 | ||
f4b28491 | 1207 | for (unsigned i=0; i<s.include_path.size(); i++) |
2b066ec1 | 1208 | { |
377b8831 FCE |
1209 | // now iterate upon it |
1210 | for (unsigned k=0; k<version_suffixes.size(); k++) | |
2b066ec1 | 1211 | { |
377b8831 FCE |
1212 | glob_t globbuf; |
1213 | string dir = s.include_path[i] + version_suffixes[k] + "/*.stp"; | |
1214 | int r = glob(dir.c_str (), 0, NULL, & globbuf); | |
1215 | if (r == GLOB_NOSPACE || r == GLOB_ABORTED) | |
2b066ec1 | 1216 | rc ++; |
377b8831 FCE |
1217 | // GLOB_NOMATCH is acceptable |
1218 | ||
c4a94c1a | 1219 | if (s.verbose>1 && globbuf.gl_pathc > 0) |
561079c8 | 1220 | clog << "Searched \"" << dir << "\", " |
c4a94c1a | 1221 | << "found " << globbuf.gl_pathc << endl; |
2b066ec1 | 1222 | |
377b8831 FCE |
1223 | for (unsigned j=0; j<globbuf.gl_pathc; j++) |
1224 | { | |
49abf162 FCE |
1225 | if (pending_interrupts) |
1226 | break; | |
1227 | ||
1228 | // XXX: privilege only for /usr/share/systemtap? | |
177a8ead | 1229 | stapfile* f = parser::parse (s, globbuf.gl_pathv[j], true); |
377b8831 FCE |
1230 | if (f == 0) |
1231 | rc ++; | |
1232 | else | |
24cb178f | 1233 | s.library_files.push_back (f); |
f59e98c4 FCE |
1234 | |
1235 | struct stat tapset_file_stat; | |
1236 | int stat_rc = stat (globbuf.gl_pathv[j], & tapset_file_stat); | |
1237 | if (stat_rc == 0 && user_file_stat_rc == 0 && | |
1238 | user_file_stat.st_dev == tapset_file_stat.st_dev && | |
1239 | user_file_stat.st_ino == tapset_file_stat.st_ino) | |
1240 | { | |
129be0ac FCE |
1241 | clog << "usage error: tapset file '" << globbuf.gl_pathv[j] |
1242 | << "' cannot be run directly as a session script." << endl; | |
f59e98c4 FCE |
1243 | rc ++; |
1244 | } | |
1245 | ||
377b8831 | 1246 | } |
d54d4661 | 1247 | |
377b8831 FCE |
1248 | globfree (& globbuf); |
1249 | } | |
2b066ec1 FCE |
1250 | } |
1251 | ||
f4b28491 | 1252 | if (rc == 0 && s.last_pass == 1) |
2b066ec1 | 1253 | { |
f4b28491 FCE |
1254 | cout << "# parse tree dump" << endl; |
1255 | s.user_file->print (cout); | |
1256 | cout << endl; | |
ae56fddd FCE |
1257 | if (s.verbose) |
1258 | for (unsigned i=0; i<s.library_files.size(); i++) | |
1259 | { | |
1260 | s.library_files[i]->print (cout); | |
1261 | cout << endl; | |
1262 | } | |
2b066ec1 FCE |
1263 | } |
1264 | ||
5ee1c56b FCE |
1265 | struct tms tms_after; |
1266 | times (& tms_after); | |
1267 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
1d738eed FCE |
1268 | struct timeval tv_after; |
1269 | gettimeofday (&tv_after, NULL); | |
5ee1c56b | 1270 | |
28b768e1 | 1271 | #define TIMESPRINT "in " << \ |
5ee1c56b | 1272 | (tms_after.tms_cutime + tms_after.tms_utime \ |
1d738eed | 1273 | - tms_before.tms_cutime - tms_before.tms_utime) * 1000 / (_sc_clk_tck) << "usr/" \ |
5ee1c56b | 1274 | << (tms_after.tms_cstime + tms_after.tms_stime \ |
1d738eed FCE |
1275 | - tms_before.tms_cstime - tms_before.tms_stime) * 1000 / (_sc_clk_tck) << "sys/" \ |
1276 | << ((tv_after.tv_sec - tv_before.tv_sec) * 1000 + \ | |
1277 | ((long)tv_after.tv_usec - (long)tv_before.tv_usec) / 1000) << "real ms." | |
5ee1c56b | 1278 | |
eaf134e7 | 1279 | // syntax errors, if any, are already printed |
5ee1c56b FCE |
1280 | if (s.verbose) |
1281 | { | |
1282 | clog << "Pass 1: parsed user script and " | |
1283 | << s.library_files.size() | |
28b768e1 MW |
1284 | << " library script(s) " |
1285 | << getmemusage() | |
5ee1c56b FCE |
1286 | << TIMESPRINT |
1287 | << endl; | |
1288 | } | |
0d49d7bc | 1289 | |
708ce1f3 | 1290 | if (rc && !s.listing_mode) |
2cfb0e46 | 1291 | cerr << "Pass 1: parse failed. " |
c3157bcd | 1292 | << "Try again with another '--vp 1' option." |
2cfb0e46 FCE |
1293 | << endl; |
1294 | ||
ce91eebd KS |
1295 | STAP_PROBE1(stap, pass1__end, &s); |
1296 | ||
49abf162 | 1297 | if (rc || s.last_pass == 1 || pending_interrupts) goto cleanup; |
f4b28491 | 1298 | |
5ee1c56b | 1299 | times (& tms_before); |
1d738eed | 1300 | gettimeofday (&tv_before, NULL); |
5ee1c56b | 1301 | |
2b066ec1 | 1302 | // PASS 2: ELABORATION |
e0b4e89d | 1303 | s.verbose = s.perpass_verbose[1]; |
ce91eebd | 1304 | STAP_PROBE1(stap, pass2__start, &s); |
0d49d7bc | 1305 | rc = semantic_pass (s); |
f4b28491 | 1306 | |
16442b90 | 1307 | if (s.listing_mode || (rc == 0 && s.last_pass == 2)) |
1b78aef5 | 1308 | printscript(s, cout); |
2b066ec1 | 1309 | |
5ee1c56b | 1310 | times (& tms_after); |
1d738eed FCE |
1311 | gettimeofday (&tv_after, NULL); |
1312 | ||
b0ee93c4 | 1313 | if (s.verbose) clog << "Pass 2: analyzed script: " |
0d49d7bc FCE |
1314 | << s.probes.size() << " probe(s), " |
1315 | << s.functions.size() << " function(s), " | |
b20febf3 | 1316 | << s.embeds.size() << " embed(s), " |
28b768e1 MW |
1317 | << s.globals.size() << " global(s) " |
1318 | << getmemusage() | |
5ee1c56b FCE |
1319 | << TIMESPRINT |
1320 | << endl; | |
0d49d7bc | 1321 | |
708ce1f3 | 1322 | if (rc && !s.listing_mode) |
377b8831 | 1323 | cerr << "Pass 2: analysis failed. " |
c3157bcd | 1324 | << "Try again with another '--vp 01' option." |
2cfb0e46 | 1325 | << endl; |
6b067d7d JS |
1326 | |
1327 | /* Print out list of missing files. XXX should be "if (rc)" ? */ | |
1328 | missing_rpm_list_print(s); | |
1329 | ||
1330 | STAP_PROBE1(stap, pass2__end, &s); | |
1331 | ||
1332 | if (rc || s.listing_mode || s.last_pass == 2 || pending_interrupts) goto cleanup; | |
1333 | ||
1b78aef5 DS |
1334 | // Generate hash. There isn't any point in generating the hash |
1335 | // if last_pass is 2, since we'll quit before using it. | |
6b067d7d | 1336 | if (s.use_script_cache) |
1b78aef5 DS |
1337 | { |
1338 | ostringstream o; | |
1339 | unsigned saved_verbose; | |
1b78aef5 | 1340 | |
9abec538 FCE |
1341 | { |
1342 | // Make sure we're in verbose mode, so that printscript() | |
1343 | // will output function/probe bodies. | |
1344 | saved_verbose = s.verbose; | |
1345 | s.verbose = 3; | |
1346 | printscript(s, o); // Print script to 'o' | |
1347 | s.verbose = saved_verbose; | |
1348 | } | |
1b78aef5 DS |
1349 | |
1350 | // Generate hash | |
9b3c54b2 | 1351 | find_script_hash (s, o.str()); |
1b78aef5 DS |
1352 | |
1353 | // See if we can use cached source/module. | |
9b3c54b2 | 1354 | if (get_script_from_cache(s)) |
1b78aef5 | 1355 | { |
db3a383b JK |
1356 | // If our last pass isn't 5, we're done (since passes 3 and |
1357 | // 4 just generate what we just pulled out of the cache). | |
49abf162 | 1358 | if (s.last_pass < 5 || pending_interrupts) goto cleanup; |
1b78aef5 | 1359 | |
db3a383b JK |
1360 | // Short-circuit to pass 5. |
1361 | goto pass_5; | |
1b78aef5 DS |
1362 | } |
1363 | } | |
377b8831 | 1364 | |
2b066ec1 | 1365 | // PASS 3: TRANSLATION |
e0b4e89d | 1366 | s.verbose = s.perpass_verbose[2]; |
5ee1c56b | 1367 | times (& tms_before); |
1d738eed | 1368 | gettimeofday (&tv_before, NULL); |
ce91eebd | 1369 | STAP_PROBE1(stap, pass3__start, &s); |
1d738eed | 1370 | |
0d49d7bc | 1371 | rc = translate_pass (s); |
f4b28491 FCE |
1372 | |
1373 | if (rc == 0 && s.last_pass == 3) | |
1374 | { | |
1375 | ifstream i (s.translated_source.c_str()); | |
1376 | cout << i.rdbuf(); | |
1377 | } | |
0d49d7bc | 1378 | |
5ee1c56b | 1379 | times (& tms_after); |
1d738eed | 1380 | gettimeofday (&tv_after, NULL); |
5ee1c56b | 1381 | |
0d49d7bc FCE |
1382 | if (s.verbose) clog << "Pass 3: translated to C into \"" |
1383 | << s.translated_source | |
28b768e1 MW |
1384 | << "\" " |
1385 | << getmemusage() | |
5ee1c56b FCE |
1386 | << TIMESPRINT |
1387 | << endl; | |
0d49d7bc | 1388 | |
377b8831 | 1389 | if (rc) |
2cfb0e46 | 1390 | cerr << "Pass 3: translation failed. " |
c3157bcd | 1391 | << "Try again with another '--vp 001' option." |
2cfb0e46 | 1392 | << endl; |
377b8831 | 1393 | |
ce91eebd KS |
1394 | STAP_PROBE1(stap, pass3__end, &s); |
1395 | ||
49abf162 | 1396 | if (rc || s.last_pass == 3 || pending_interrupts) goto cleanup; |
d54d4661 | 1397 | |
f4b28491 | 1398 | // PASS 4: COMPILATION |
e0b4e89d | 1399 | s.verbose = s.perpass_verbose[3]; |
5ee1c56b | 1400 | times (& tms_before); |
1d738eed | 1401 | gettimeofday (&tv_before, NULL); |
ce91eebd | 1402 | STAP_PROBE1(stap, pass4__start, &s); |
9b3c54b2 JS |
1403 | |
1404 | if (s.use_cache) | |
1405 | { | |
1406 | find_stapconf_hash(s); | |
1407 | get_stapconf_from_cache(s); | |
1408 | } | |
0d49d7bc | 1409 | rc = compile_pass (s); |
9abec538 FCE |
1410 | |
1411 | if (rc == 0 && s.last_pass == 4) | |
422dc4e1 FCE |
1412 | { |
1413 | cout << ((s.hash_path == "") ? (s.module_name + string(".ko")) : s.hash_path); | |
1414 | cout << endl; | |
1415 | } | |
9abec538 | 1416 | |
5ee1c56b | 1417 | times (& tms_after); |
1d738eed | 1418 | gettimeofday (&tv_after, NULL); |
5ee1c56b FCE |
1419 | |
1420 | if (s.verbose) clog << "Pass 4: compiled C into \"" | |
1421 | << s.module_name << ".ko" | |
28b768e1 | 1422 | << "\" " |
5ee1c56b FCE |
1423 | << TIMESPRINT |
1424 | << endl; | |
f4b28491 | 1425 | |
eaf134e7 FCE |
1426 | if (rc) |
1427 | cerr << "Pass 4: compilation failed. " | |
c3157bcd | 1428 | << "Try again with another '--vp 0001' option." |
2cfb0e46 | 1429 | << endl; |
fc52ef5b | 1430 | else |
1b78aef5 | 1431 | { |
72bfb1fd | 1432 | // Update cache. Cache cleaning is kicked off at the beginning of this function. |
63d530ab | 1433 | if (s.use_script_cache) |
9b3c54b2 JS |
1434 | add_script_to_cache(s); |
1435 | if (s.use_cache) | |
1436 | add_stapconf_to_cache(s); | |
fc52ef5b | 1437 | |
f4d5049b FCE |
1438 | // We may need to save the module in $CWD if the cache was |
1439 | // inaccessible for some reason. | |
63d530ab | 1440 | if (! s.use_script_cache && s.last_pass == 4) |
f4d5049b | 1441 | save_module = true; |
e16dc041 | 1442 | |
fc52ef5b | 1443 | // Copy module to the current directory. |
49abf162 | 1444 | if (save_module && !pending_interrupts) |
fc52ef5b DS |
1445 | { |
1446 | string module_src_path = s.tmpdir + "/" + s.module_name + ".ko"; | |
1447 | string module_dest_path = s.module_name + ".ko"; | |
e16dc041 | 1448 | copy_file(module_src_path, module_dest_path, s.verbose > 1); |
fc52ef5b | 1449 | } |
1b78aef5 | 1450 | } |
eaf134e7 | 1451 | |
ce91eebd KS |
1452 | STAP_PROBE1(stap, pass4__end, &s); |
1453 | ||
49abf162 | 1454 | if (rc || s.last_pass == 4 || pending_interrupts) goto cleanup; |
f4b28491 | 1455 | |
9abec538 | 1456 | |
0d49d7bc | 1457 | // PASS 5: RUN |
1b78aef5 | 1458 | pass_5: |
e0b4e89d | 1459 | s.verbose = s.perpass_verbose[4]; |
5ee1c56b | 1460 | times (& tms_before); |
1d738eed | 1461 | gettimeofday (&tv_before, NULL); |
03d569d3 FCE |
1462 | // NB: this message is a judgement call. The other passes don't emit |
1463 | // a "hello, I'm starting" message, but then the others aren't interactive | |
1464 | // and don't take an indefinite amount of time. | |
ce91eebd | 1465 | STAP_PROBE1(stap, pass5__start, &s); |
03d569d3 | 1466 | if (s.verbose) clog << "Pass 5: starting run." << endl; |
0d49d7bc | 1467 | rc = run_pass (s); |
5ee1c56b | 1468 | times (& tms_after); |
1d738eed | 1469 | gettimeofday (&tv_after, NULL); |
28b768e1 | 1470 | if (s.verbose) clog << "Pass 5: run completed " |
5ee1c56b FCE |
1471 | << TIMESPRINT |
1472 | << endl; | |
f4b28491 | 1473 | |
eaf134e7 FCE |
1474 | if (rc) |
1475 | cerr << "Pass 5: run failed. " | |
c3157bcd | 1476 | << "Try again with another '--vp 00001' option." |
2cfb0e46 | 1477 | << endl; |
eaf134e7 | 1478 | |
0d49d7bc | 1479 | // if (rc) goto cleanup; |
2b066ec1 | 1480 | |
ce91eebd KS |
1481 | STAP_PROBE1(stap, pass5__end, &s); |
1482 | ||
c31df222 | 1483 | // PASS 6: cleaning up |
0d49d7bc | 1484 | cleanup: |
c3a3c0c9 | 1485 | |
ce91eebd KS |
1486 | STAP_PROBE1(stap, pass6__start, &s); |
1487 | ||
c3a3c0c9 | 1488 | // update the database information |
49abf162 | 1489 | if (!rc && s.tapset_compile_coverage && !pending_interrupts) { |
1c0b94ef | 1490 | #ifdef HAVE_LIBSQLITE3 |
c3a3c0c9 | 1491 | update_coverage_db(s); |
1c0b94ef FCE |
1492 | #else |
1493 | cerr << "Coverage database not available without libsqlite3" << endl; | |
1494 | #endif | |
c3a3c0c9 WC |
1495 | } |
1496 | ||
f4b28491 FCE |
1497 | // Clean up temporary directory. Obviously, be careful with this. |
1498 | if (s.tmpdir == "") | |
1499 | ; // do nothing | |
1500 | else | |
1501 | { | |
1502 | if (s.keep_tmpdir) | |
cf4a6df8 FCE |
1503 | // NB: the format of this message needs to match the expectations |
1504 | // of stap-server-connect.c. | |
0d49d7bc | 1505 | clog << "Keeping temporary directory \"" << s.tmpdir << "\"" << endl; |
f4b28491 FCE |
1506 | else |
1507 | { | |
3972b443 DS |
1508 | // Ignore signals while we're deleting the temporary directory. |
1509 | setup_signals (SIG_IGN); | |
1510 | ||
1511 | // Remove the temporary directory. | |
ce3187ac | 1512 | string cleanupcmd = "rm -rf "; |
f4b28491 | 1513 | cleanupcmd += s.tmpdir; |
36ef6d6a FCE |
1514 | |
1515 | (void) stap_system (s.verbose, cleanupcmd); | |
f4b28491 FCE |
1516 | } |
1517 | } | |
2b066ec1 | 1518 | |
ce91eebd KS |
1519 | STAP_PROBE1(stap, pass6__end, &s); |
1520 | ||
49abf162 | 1521 | return (rc||pending_interrupts) ? EXIT_FAILURE : EXIT_SUCCESS; |
2b066ec1 | 1522 | } |
73267b89 JS |
1523 | |
1524 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ | |
6861e056 | 1525 |