]>
Commit | Line | Data |
---|---|---|
f4b28491 | 1 | // systemtap translator/driver |
e7a0bd52 | 2 | // Copyright (C) 2005-2009 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" |
2b066ec1 FCE |
23 | |
24 | #include <iostream> | |
25 | #include <fstream> | |
26 | #include <sstream> | |
f4b28491 | 27 | #include <cerrno> |
24cb178f | 28 | #include <cstdlib> |
e00f99a7 | 29 | #include <limits.h> |
2b066ec1 FCE |
30 | |
31 | extern "C" { | |
32 | #include <glob.h> | |
33 | #include <unistd.h> | |
49abf162 | 34 | #include <signal.h> |
f4b28491 | 35 | #include <sys/utsname.h> |
5ee1c56b | 36 | #include <sys/times.h> |
1d738eed | 37 | #include <sys/time.h> |
f59e98c4 | 38 | #include <sys/stat.h> |
f4b28491 | 39 | #include <time.h> |
f8949662 | 40 | #include <elfutils/libdwfl.h> |
5f0a03a6 | 41 | #include <getopt.h> |
2b066ec1 FCE |
42 | } |
43 | ||
44 | using namespace std; | |
45 | ||
46 | ||
f4b28491 | 47 | void |
c0de7a8d | 48 | version () |
2b066ec1 | 49 | { |
d54d4661 | 50 | clog |
d04cf5ff | 51 | << "SystemTap translator/driver " |
c4a94c1a | 52 | << "(version " << VERSION << "/" << dwfl_version (NULL) |
2881ab63 | 53 | << " " << GIT_MESSAGE << ")" << endl |
e7a0bd52 | 54 | << "Copyright (C) 2005-2009 Red Hat, Inc. and others" << endl |
f8949662 | 55 | << "This is free software; see the source for copying conditions." << endl; |
c0de7a8d FCE |
56 | } |
57 | ||
58 | void | |
277c1957 | 59 | usage (systemtap_session& s, int exitcode) |
c0de7a8d FCE |
60 | { |
61 | version (); | |
62 | clog | |
f4b28491 | 63 | << endl |
b2d5d95c | 64 | << "Usage: stap [options] FILE Run script in file." |
f4b28491 | 65 | << endl |
b2d5d95c | 66 | << " or: stap [options] - Run script on stdin." |
f4b28491 | 67 | << endl |
d54d4661 | 68 | << " or: stap [options] -e SCRIPT Run given script." |
f4b28491 | 69 | << endl |
16442b90 FCE |
70 | << " or: stap [options] -l PROBE List matching probes." |
71 | << endl | |
d4e35ac8 WH |
72 | << " or: stap [options] -L PROBE List matching probes and local variables." |
73 | << endl | |
f4b28491 | 74 | << endl |
c0de7a8d | 75 | << "Options:" << endl |
16442b90 | 76 | << " -- end of translator options, script options follow" << endl |
c0de7a8d FCE |
77 | << " -h show help" << endl |
78 | << " -V show version" << endl | |
e0b4e89d FCE |
79 | << " -p NUM stop after pass NUM 1-5, instead of " << s.last_pass << endl |
80 | << " (parse, elaborate, translate, compile, run)" << endl | |
81 | << " -v add verbosity to all passes" << endl | |
82 | << " --vp {N}+ add per-pass verbosity ["; | |
83 | for (unsigned i=0; i<5; i++) | |
84 | clog << (s.perpass_verbose[i] <= 9 ? s.perpass_verbose[i] : 9); | |
85 | clog | |
86 | << "]" << endl | |
d5d7c2cc | 87 | << " -k keep temporary directory" << endl |
cbfbbf69 | 88 | << " -u unoptimized translation" << (s.unoptimized ? " [set]" : "") << endl |
a9e8f7e0 | 89 | << " -w suppress warnings" << (s.suppress_warnings ? " [set]" : "") << endl |
377b8831 | 90 | << " -g guru mode" << (s.guru_mode ? " [set]" : "") << endl |
dff50e09 | 91 | << " -P prologue-searching for function probes" |
44f75386 | 92 | << (s.prologue_searching ? " [set]" : "") << endl |
6dfd08d7 | 93 | << " -b bulk (percpu file) mode" << (s.bulk_mode ? " [set]" : "") << endl |
e0b4e89d | 94 | << " -s NUM buffer size in megabytes, instead of " << s.buffer_size << endl |
f4b28491 FCE |
95 | << " -I DIR look in DIR for additional .stp script files"; |
96 | if (s.include_path.size() == 0) | |
0d49d7bc | 97 | clog << endl; |
f4b28491 | 98 | else |
24cb178f | 99 | clog << ", in addition to" << endl; |
f4b28491 | 100 | for (unsigned i=0; i<s.include_path.size(); i++) |
0d49d7bc FCE |
101 | clog << " " << s.include_path[i] << endl; |
102 | clog | |
ed10c639 | 103 | << " -D NM=VAL emit macro definition into generated C code" << endl |
24cb178f | 104 | << " -R DIR look in DIR for runtime, instead of" << endl |
b5e66ada FCE |
105 | << " " << s.runtime_path << endl |
106 | << " -r DIR cross-compile to kernel with given build tree; or else" << endl | |
107 | << " -r RELEASE cross-compile to kernel /lib/modules/RELEASE/build, instead of" << endl | |
108 | << " " << s.kernel_build_tree << endl | |
109 | << " -m MODULE set probe module name, instead of " << endl | |
110 | << " " << s.module_name << endl | |
04ae1b09 | 111 | << " -o FILE send script output to file, instead of stdout. This supports" << endl |
54f1da8f | 112 | << " strftime(3) formats for FILE" << endl |
b5e66ada | 113 | << " -c CMD start the probes, run CMD, and exit when it finishes" << endl |
4c5ff1bb | 114 | << " -x PID sets target() to PID" << endl |
701c41be MH |
115 | << " -F run as on-file flight recorder with -o." << endl |
116 | << " run as on-memory flight recorder without -o." << endl | |
117 | << " -S size[,n] set maximum of the size and the number of files." << endl | |
a8368458 FCE |
118 | << " -d OBJECT add unwind/symbol data for OBJECT file"; |
119 | if (s.unwindsym_modules.size() == 0) | |
120 | clog << endl; | |
121 | else | |
122 | clog << ", in addition to" << endl; | |
1a0dbc5a FCE |
123 | { |
124 | vector<string> syms (s.unwindsym_modules.begin(), s.unwindsym_modules.end()); | |
125 | for (unsigned i=0; i<syms.size(); i++) | |
126 | clog << " " << syms[i] << endl; | |
127 | } | |
a8368458 | 128 | clog |
cbd6fc7b | 129 | << " -t collect probe timing information" << endl |
1c0b94ef | 130 | #ifdef HAVE_LIBSQLITE3 |
5f0a03a6 | 131 | << " -q generate information on tapset coverage" << endl |
1c0b94ef | 132 | #endif /* HAVE_LIBSQLITE3 */ |
05ec91b4 | 133 | #if 0 /* PR6864: disable temporarily; should merge with -d somehow */ |
5f0a03a6 JK |
134 | << " --kelf make do with symbol table from vmlinux" << endl |
135 | << " --kmap[=FILE]" << endl | |
136 | << " make do with symbol table from nm listing" << endl | |
05ec91b4 FCE |
137 | #endif |
138 | // Formerly present --ignore-{vmlinux,dwarf} options are for testsuite use | |
139 | // only, and don't belong in the eyesight of a plain user. | |
3bd0d4df RA |
140 | << " --skip-badvars" << endl |
141 | << " overlook context of bad $ variables" << endl | |
c3a3c0c9 | 142 | << endl |
d5d7c2cc | 143 | ; |
2b066ec1 | 144 | |
277c1957 | 145 | exit (exitcode); |
2b066ec1 FCE |
146 | } |
147 | ||
148 | ||
1b78aef5 DS |
149 | static void |
150 | printscript(systemtap_session& s, ostream& o) | |
151 | { | |
16442b90 | 152 | if (s.listing_mode) |
83d7fcdc | 153 | { |
16442b90 FCE |
154 | // We go through some heroic measures to produce clean output. |
155 | set<string> seen; | |
83d7fcdc | 156 | |
16442b90 | 157 | for (unsigned i=0; i<s.probes.size(); i++) |
9ba8c134 | 158 | { |
f76427a2 FCE |
159 | if (pending_interrupts) return; |
160 | ||
16442b90 FCE |
161 | derived_probe* p = s.probes[i]; |
162 | // NB: p->basest() is not so interesting; | |
163 | // p->almost_basest() doesn't quite work, so ... | |
164 | vector<probe*> chain; | |
165 | p->collect_derivation_chain (chain); | |
166 | probe* second = (chain.size()>1) ? chain[chain.size()-2] : chain[0]; | |
167 | ||
168 | #if 0 | |
169 | cerr << "\tchain[" << chain.size() << "]:" << endl; | |
170 | for (unsigned i=0; i<chain.size(); i++) | |
171 | { cerr << "\t"; chain[i]->printsig(cerr); cerr << endl; } | |
172 | #endif | |
173 | ||
174 | stringstream tmps; | |
7fb2f650 FCE |
175 | const probe_alias *a = second->get_alias(); |
176 | if (a) | |
177 | { | |
178 | assert (a->alias_names.size() >= 1); | |
179 | a->alias_names[0]->print(tmps); // XXX: [0] is arbitrary; perhaps print all | |
dff50e09 | 180 | } |
7fb2f650 FCE |
181 | else |
182 | { | |
183 | assert (second->locations.size() >= 1); | |
184 | second->locations[0]->print(tmps); // XXX: [0] is less arbitrary here, but still ... | |
185 | } | |
186 | string pp = tmps.str(); | |
16442b90 FCE |
187 | |
188 | // Now duplicate-eliminate. An alias may have expanded to | |
189 | // several actual derived probe points, but we only want to | |
190 | // print the alias head name once. | |
191 | if (seen.find (pp) == seen.end()) | |
192 | { | |
d4e35ac8 | 193 | o << pp; |
223f5b6b | 194 | // Print the locals for -L mode only |
e2086848 | 195 | if (s.unoptimized) { |
223f5b6b JS |
196 | for (unsigned j=0; j<p->locals.size(); j++) |
197 | { | |
198 | o << " "; | |
199 | vardecl* v = p->locals[j]; | |
200 | v->printsig (o); | |
201 | } | |
e2086848 WH |
202 | // Print arguments of probe if there |
203 | p->printargs(o); | |
204 | } | |
223f5b6b | 205 | o << endl; |
16442b90 FCE |
206 | seen.insert (pp); |
207 | } | |
9ba8c134 | 208 | } |
1b78aef5 | 209 | } |
16442b90 | 210 | else |
1b78aef5 | 211 | { |
16442b90 FCE |
212 | if (s.embeds.size() > 0) |
213 | o << "# global embedded code" << endl; | |
214 | for (unsigned i=0; i<s.embeds.size(); i++) | |
1b78aef5 | 215 | { |
f76427a2 | 216 | if (pending_interrupts) return; |
16442b90 FCE |
217 | embeddedcode* ec = s.embeds[i]; |
218 | ec->print (o); | |
219 | o << endl; | |
220 | } | |
dff50e09 | 221 | |
16442b90 FCE |
222 | if (s.globals.size() > 0) |
223 | o << "# globals" << endl; | |
224 | for (unsigned i=0; i<s.globals.size(); i++) | |
1b78aef5 | 225 | { |
f76427a2 | 226 | if (pending_interrupts) return; |
16442b90 FCE |
227 | vardecl* v = s.globals[i]; |
228 | v->printsig (o); | |
229 | if (s.verbose && v->init) | |
230 | { | |
231 | o << " = "; | |
232 | v->init->print(o); | |
233 | } | |
234 | o << endl; | |
235 | } | |
dff50e09 | 236 | |
16442b90 FCE |
237 | if (s.functions.size() > 0) |
238 | o << "# functions" << endl; | |
f76427a2 | 239 | for (map<string,functiondecl*>::iterator it = s.functions.begin(); it != s.functions.end(); it++) |
1b78aef5 | 240 | { |
f76427a2 FCE |
241 | if (pending_interrupts) return; |
242 | functiondecl* f = it->second; | |
16442b90 FCE |
243 | f->printsig (o); |
244 | o << endl; | |
245 | if (f->locals.size() > 0) | |
246 | o << " # locals" << endl; | |
247 | for (unsigned j=0; j<f->locals.size(); j++) | |
248 | { | |
249 | vardecl* v = f->locals[j]; | |
250 | o << " "; | |
251 | v->printsig (o); | |
252 | o << endl; | |
253 | } | |
254 | if (s.verbose) | |
255 | { | |
256 | f->body->print (o); | |
257 | o << endl; | |
258 | } | |
259 | } | |
dff50e09 | 260 | |
16442b90 FCE |
261 | if (s.probes.size() > 0) |
262 | o << "# probes" << endl; | |
263 | for (unsigned i=0; i<s.probes.size(); i++) | |
1b78aef5 | 264 | { |
f76427a2 | 265 | if (pending_interrupts) return; |
16442b90 FCE |
266 | derived_probe* p = s.probes[i]; |
267 | p->printsig (o); | |
268 | o << endl; | |
269 | if (p->locals.size() > 0) | |
270 | o << " # locals" << endl; | |
271 | for (unsigned j=0; j<p->locals.size(); j++) | |
272 | { | |
273 | vardecl* v = p->locals[j]; | |
274 | o << " "; | |
275 | v->printsig (o); | |
276 | o << endl; | |
277 | } | |
278 | if (s.verbose) | |
279 | { | |
280 | p->body->print (o); | |
281 | o << endl; | |
282 | } | |
283 | } | |
284 | } | |
277f2b79 | 285 | } |
1b78aef5 | 286 | |
49abf162 FCE |
287 | |
288 | int pending_interrupts; | |
289 | ||
290 | extern "C" | |
82737bef | 291 | void handle_interrupt (int sig) |
49abf162 | 292 | { |
4cc40e82 | 293 | kill_stap_spawn(sig); |
49abf162 | 294 | pending_interrupts ++; |
4cc40e82 | 295 | if (pending_interrupts > 1) // XXX: should be configurable? time-based? |
49abf162 FCE |
296 | { |
297 | char msg[] = "Too many interrupts received, exiting.\n"; | |
298 | int rc = write (2, msg, sizeof(msg)-1); | |
9ceec314 | 299 | if (rc) {/* Do nothing; we don't care if our last gasp went out. */ ;} |
49abf162 FCE |
300 | _exit (1); |
301 | } | |
302 | } | |
303 | ||
304 | ||
3972b443 DS |
305 | void |
306 | setup_signals (sighandler_t handler) | |
307 | { | |
308 | struct sigaction sa; | |
309 | ||
310 | sa.sa_handler = handler; | |
311 | sigemptyset (&sa.sa_mask); | |
312 | if (handler != SIG_IGN) | |
313 | { | |
314 | sigaddset (&sa.sa_mask, SIGHUP); | |
315 | sigaddset (&sa.sa_mask, SIGPIPE); | |
316 | sigaddset (&sa.sa_mask, SIGINT); | |
317 | sigaddset (&sa.sa_mask, SIGTERM); | |
318 | } | |
4cc40e82 | 319 | sa.sa_flags = SA_RESTART; |
3972b443 DS |
320 | |
321 | sigaction (SIGHUP, &sa, NULL); | |
322 | sigaction (SIGPIPE, &sa, NULL); | |
323 | sigaction (SIGINT, &sa, NULL); | |
324 | sigaction (SIGTERM, &sa, NULL); | |
325 | } | |
326 | ||
4d0a3330 KS |
327 | void |
328 | setup_kernel_release (systemtap_session &s, const char* kstr) { | |
329 | if (kstr[0] == '/') // fully specified path | |
330 | { | |
331 | s.kernel_build_tree = kstr; | |
332 | string version_file_name = s.kernel_build_tree + "/include/config/kernel.release"; | |
333 | // The file include/config/kernel.release within the | |
334 | // build tree is used to pull out the version information | |
335 | ifstream version_file (version_file_name.c_str()); | |
336 | if (version_file.fail ()) | |
337 | { | |
338 | cerr << "Missing " << version_file_name << endl; | |
339 | exit(1); | |
340 | } | |
341 | else | |
342 | { | |
343 | char c; | |
344 | s.kernel_release = ""; | |
345 | while (version_file.get(c) && c != '\n') | |
346 | s.kernel_release.push_back(c); | |
347 | } | |
348 | } | |
349 | else | |
350 | { | |
351 | s.kernel_release = string (kstr); | |
352 | s.kernel_build_tree = "/lib/modules/" + s.kernel_release + "/build"; | |
353 | } | |
354 | } | |
3972b443 | 355 | |
2b066ec1 FCE |
356 | int |
357 | main (int argc, char * const argv []) | |
358 | { | |
2b066ec1 FCE |
359 | string cmdline_script; // -e PROGRAM |
360 | string script_file; // FILE | |
361 | bool have_script = false; | |
fc52ef5b | 362 | bool save_module = false; |
f4b28491 FCE |
363 | |
364 | // Initialize defaults | |
365 | systemtap_session s; | |
366 | struct utsname buf; | |
367 | (void) uname (& buf); | |
368 | s.kernel_release = string (buf.release); | |
b5e66ada FCE |
369 | s.kernel_build_tree = "/lib/modules/" + s.kernel_release + "/build"; |
370 | ||
44ce8ed5 | 371 | s.architecture = string (buf.machine); |
e0b4e89d | 372 | for (unsigned i=0; i<5; i++) s.perpass_verbose[i]=0; |
a9e8f7e0 | 373 | s.timing = false; |
377b8831 | 374 | s.guru_mode = false; |
16d8de1b | 375 | s.bulk_mode = false; |
cbfbbf69 | 376 | s.unoptimized = false; |
a9e8f7e0 | 377 | s.suppress_warnings = false; |
16442b90 | 378 | s.listing_mode = false; |
44f75386 FCE |
379 | |
380 | #ifdef ENABLE_PROLOGUES | |
381 | s.prologue_searching = true; | |
382 | #else | |
383 | s.prologue_searching = false; | |
384 | #endif | |
385 | ||
16d8de1b | 386 | s.buffer_size = 0; |
f4b28491 | 387 | s.last_pass = 5; |
ae24723e | 388 | s.module_name = "stap_" + stringify(getpid()); |
de0db58a | 389 | s.stapconf_name = "stapconf_" + stringify(getpid()) + ".h"; |
08c68653 | 390 | s.output_file = ""; // -o FILE |
f4b28491 | 391 | s.keep_tmpdir = false; |
4c5ff1bb MH |
392 | s.cmd = ""; |
393 | s.target_pid = 0; | |
f272aacc | 394 | s.merge=true; |
47dd066d | 395 | s.perfmon=0; |
f1bad60c | 396 | s.symtab = false; |
1b78aef5 | 397 | s.use_cache = true; |
c3a3c0c9 | 398 | s.tapset_compile_coverage = false; |
12dc24bc | 399 | s.need_uprobes = false; |
5f0a03a6 JK |
400 | s.consult_symtab = false; |
401 | s.ignore_vmlinux = false; | |
402 | s.ignore_dwarf = false; | |
2fa2a091 | 403 | s.load_only = false; |
28f569c2 | 404 | s.skip_badvars = false; |
24cb178f | 405 | |
2035bcd4 DB |
406 | // Location of our signing certificate. |
407 | // If we're root, use the database in SYSCONFDIR, otherwise | |
408 | // use the one in our $HOME directory. */ | |
409 | if (geteuid() == 0) | |
410 | s.cert_db_path = SYSCONFDIR "/systemtap/ssl/server"; | |
411 | else | |
412 | s.cert_db_path = getenv("HOME") + string ("/.systemtap/ssl/server"); | |
413 | ||
24cb178f | 414 | const char* s_p = getenv ("SYSTEMTAP_TAPSET"); |
dff50e09 | 415 | if (s_p != NULL) |
ec819dc3 | 416 | { |
24cb178f | 417 | s.include_path.push_back (s_p); |
ec819dc3 | 418 | } |
24cb178f | 419 | else |
ec819dc3 | 420 | { |
24cb178f | 421 | s.include_path.push_back (string(PKGDATADIR) + "/tapset"); |
ec819dc3 | 422 | } |
24cb178f FCE |
423 | |
424 | const char* s_r = getenv ("SYSTEMTAP_RUNTIME"); | |
425 | if (s_r != NULL) | |
426 | s.runtime_path = s_r; | |
427 | else | |
428 | s.runtime_path = string(PKGDATADIR) + "/runtime"; | |
f4b28491 | 429 | |
1b78aef5 DS |
430 | const char* s_d = getenv ("SYSTEMTAP_DIR"); |
431 | if (s_d != NULL) | |
432 | s.data_path = s_d; | |
433 | else | |
434 | s.data_path = get_home_directory() + string("/.systemtap"); | |
435 | if (create_dir(s.data_path.c_str()) == 1) | |
436 | { | |
437 | const char* e = strerror (errno); | |
f4d5049b FCE |
438 | if (! s.suppress_warnings) |
439 | cerr << "Warning: failed to create systemtap data directory (\"" | |
440 | << s.data_path << "\"): " << e | |
441 | << ", disabling cache support." << endl; | |
1b78aef5 DS |
442 | s.use_cache = false; |
443 | } | |
444 | ||
445 | if (s.use_cache) | |
446 | { | |
447 | s.cache_path = s.data_path + "/cache"; | |
448 | if (create_dir(s.cache_path.c_str()) == 1) | |
449 | { | |
450 | const char* e = strerror (errno); | |
f4d5049b FCE |
451 | if (! s.suppress_warnings) |
452 | cerr << "Warning: failed to create cache directory (\"" | |
453 | << s.cache_path << "\"): " << e | |
454 | << ", disabling cache support." << endl; | |
1b78aef5 DS |
455 | s.use_cache = false; |
456 | } | |
457 | } | |
458 | ||
c3a3c0c9 WC |
459 | const char* s_tc = getenv ("SYSTEMTAP_COVERAGE"); |
460 | if (s_tc != NULL) | |
461 | s.tapset_compile_coverage = true; | |
462 | ||
755cdd9b KS |
463 | const char* s_kr = getenv ("SYSTEMTAP_RELEASE"); |
464 | if (s_kr != NULL) { | |
4d0a3330 | 465 | setup_kernel_release(s, s_kr); |
755cdd9b KS |
466 | } |
467 | ||
468 | ||
2b066ec1 FCE |
469 | while (true) |
470 | { | |
5f0a03a6 JK |
471 | int long_opt; |
472 | #define LONG_OPT_KELF 1 | |
473 | #define LONG_OPT_KMAP 2 | |
474 | #define LONG_OPT_IGNORE_VMLINUX 3 | |
475 | #define LONG_OPT_IGNORE_DWARF 4 | |
e0b4e89d | 476 | #define LONG_OPT_VERBOSE_PASS 5 |
3bd0d4df | 477 | #define LONG_OPT_SKIP_BADVARS 6 |
a9e8f7e0 | 478 | // NB: also see find_hash(), usage(), switch stmt below, stap.1 man page |
5f0a03a6 JK |
479 | static struct option long_options[] = { |
480 | { "kelf", 0, &long_opt, LONG_OPT_KELF }, | |
481 | { "kmap", 2, &long_opt, LONG_OPT_KMAP }, | |
482 | { "ignore-vmlinux", 0, &long_opt, LONG_OPT_IGNORE_VMLINUX }, | |
483 | { "ignore-dwarf", 0, &long_opt, LONG_OPT_IGNORE_DWARF }, | |
3bd0d4df | 484 | { "skip-badvars", 0, &long_opt, LONG_OPT_SKIP_BADVARS }, |
e0b4e89d | 485 | { "vp", 1, &long_opt, LONG_OPT_VERBOSE_PASS }, |
5f0a03a6 JK |
486 | { NULL, 0, NULL, 0 } |
487 | }; | |
701c41be | 488 | int grc = getopt_long (argc, argv, "hVMvtp:I:e:o:R:r:m:kgPc:x:D:bs:uqwl:d:L:FS:", |
5f0a03a6 | 489 | long_options, NULL); |
2b066ec1 FCE |
490 | if (grc < 0) |
491 | break; | |
492 | switch (grc) | |
493 | { | |
c0de7a8d FCE |
494 | case 'V': |
495 | version (); | |
496 | exit (0); | |
497 | ||
f272aacc LG |
498 | case 'M': |
499 | s.merge = false; | |
500 | break; | |
501 | ||
bd2b1e68 | 502 | case 'v': |
e0b4e89d FCE |
503 | for (unsigned i=0; i<5; i++) |
504 | s.perpass_verbose[i] ++; | |
bd2b1e68 GH |
505 | break; |
506 | ||
4b17d6af | 507 | case 't': |
a9e8f7e0 FCE |
508 | s.timing = true; |
509 | break; | |
510 | ||
511 | case 'w': | |
512 | s.suppress_warnings = true; | |
4b17d6af WC |
513 | break; |
514 | ||
2b066ec1 | 515 | case 'p': |
16442b90 FCE |
516 | if (s.listing_mode) |
517 | { | |
518 | cerr << "Listing (-l) mode implies pass 2." << endl; | |
519 | usage (s, 1); | |
520 | } | |
f4b28491 FCE |
521 | s.last_pass = atoi (optarg); |
522 | if (s.last_pass < 1 || s.last_pass > 5) | |
2b066ec1 | 523 | { |
277c1957 DS |
524 | cerr << "Invalid pass number (should be 1-5)." << endl; |
525 | usage (s, 1); | |
2b066ec1 FCE |
526 | } |
527 | break; | |
528 | ||
529 | case 'I': | |
f4b28491 | 530 | s.include_path.push_back (string (optarg)); |
2b066ec1 FCE |
531 | break; |
532 | ||
a8368458 | 533 | case 'd': |
1a0dbc5a | 534 | s.unwindsym_modules.insert (string (optarg)); |
a8368458 FCE |
535 | break; |
536 | ||
2b066ec1 FCE |
537 | case 'e': |
538 | if (have_script) | |
277c1957 DS |
539 | { |
540 | cerr << "Only one script can be given on the command line." | |
541 | << endl; | |
542 | usage (s, 1); | |
543 | } | |
2b066ec1 FCE |
544 | cmdline_script = string (optarg); |
545 | have_script = true; | |
546 | break; | |
547 | ||
548 | case 'o': | |
08c68653 | 549 | s.output_file = string (optarg); |
2b066ec1 FCE |
550 | break; |
551 | ||
f4b28491 FCE |
552 | case 'R': |
553 | s.runtime_path = string (optarg); | |
554 | break; | |
555 | ||
556 | case 'm': | |
557 | s.module_name = string (optarg); | |
fc52ef5b | 558 | save_module = true; |
3b942fed DS |
559 | { |
560 | string::size_type len = s.module_name.length(); | |
561 | ||
562 | // If the module name ends with '.ko', chop it off since | |
563 | // modutils doesn't like modules named 'foo.ko.ko'. | |
564 | if (len > 3 && s.module_name.substr(len - 3, 3) == ".ko") | |
565 | { | |
566 | s.module_name.erase(len - 3); | |
567 | len -= 3; | |
568 | cerr << "Truncating module name to '" << s.module_name | |
569 | << "'" << endl; | |
570 | } | |
571 | ||
572 | // Make sure an empty module name wasn't specified (-m "") | |
573 | if (len == 0) | |
574 | { | |
575 | cerr << "Module name cannot be empty." << endl; | |
576 | usage (s, 1); | |
577 | } | |
578 | ||
579 | // Make sure the module name is only composed of the | |
580 | // following chars: [_a-zA-Z0-9] | |
581 | const string identchars("_" "abcdefghijklmnopqrstuvwxyz" | |
582 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "0123456789"); | |
583 | if (s.module_name.find_first_not_of(identchars) != string::npos) | |
584 | { | |
585 | cerr << "Invalid module name (must only be composed of" | |
586 | " characters [_a-zA-Z0-9])." << endl; | |
587 | usage (s, 1); | |
588 | } | |
98aab489 DS |
589 | |
590 | // Make sure module name isn't too long. | |
591 | if (s.module_name.size() >= (MODULE_NAME_LEN - 1)) | |
592 | { | |
593 | s.module_name.resize(MODULE_NAME_LEN - 1); | |
594 | cerr << "Truncating module name to '" << s.module_name | |
595 | << "'" << endl; | |
596 | } | |
3b942fed DS |
597 | } |
598 | ||
1b78aef5 | 599 | s.use_cache = false; |
f4b28491 FCE |
600 | break; |
601 | ||
602 | case 'r': | |
4d0a3330 | 603 | setup_kernel_release(s, optarg); |
f4b28491 FCE |
604 | break; |
605 | ||
606 | case 'k': | |
607 | s.keep_tmpdir = true; | |
f53a92f9 | 608 | s.use_cache = false; /* User wants to keep a usable build tree. */ |
f4b28491 FCE |
609 | break; |
610 | ||
377b8831 FCE |
611 | case 'g': |
612 | s.guru_mode = true; | |
613 | break; | |
614 | ||
44f75386 FCE |
615 | case 'P': |
616 | s.prologue_searching = true; | |
617 | break; | |
618 | ||
16d8de1b TZ |
619 | case 'b': |
620 | s.bulk_mode = true; | |
16d8de1b TZ |
621 | break; |
622 | ||
cbfbbf69 FCE |
623 | case 'u': |
624 | s.unoptimized = true; | |
625 | break; | |
626 | ||
16d8de1b TZ |
627 | case 's': |
628 | s.buffer_size = atoi (optarg); | |
453b58ed | 629 | if (s.buffer_size < 1 || s.buffer_size > 4095) |
16d8de1b | 630 | { |
453b58ed | 631 | cerr << "Invalid buffer size (should be 1-4095)." << endl; |
277c1957 | 632 | usage (s, 1); |
16d8de1b TZ |
633 | } |
634 | break; | |
635 | ||
4c5ff1bb MH |
636 | case 'c': |
637 | s.cmd = string (optarg); | |
638 | break; | |
639 | ||
640 | case 'x': | |
641 | s.target_pid = atoi(optarg); | |
642 | break; | |
643 | ||
ed10c639 FCE |
644 | case 'D': |
645 | s.macros.push_back (string (optarg)); | |
646 | break; | |
647 | ||
701c41be MH |
648 | case 'S': |
649 | s.size_option = string (optarg); | |
650 | break; | |
651 | ||
c3a3c0c9 WC |
652 | case 'q': |
653 | s.tapset_compile_coverage = true; | |
654 | break; | |
655 | ||
2b066ec1 | 656 | case 'h': |
277c1957 DS |
657 | usage (s, 0); |
658 | break; | |
659 | ||
d4e35ac8 | 660 | case 'L': |
1044139f | 661 | s.unoptimized = true; // This causes retention of variables for listing_mode |
d4e35ac8 | 662 | |
16442b90 | 663 | case 'l': |
4bd48e4b | 664 | s.suppress_warnings = true; |
16442b90 FCE |
665 | s.listing_mode = true; |
666 | s.last_pass = 2; | |
667 | if (have_script) | |
668 | { | |
669 | cerr << "Only one script can be given on the command line." | |
670 | << endl; | |
671 | usage (s, 1); | |
672 | } | |
673 | cmdline_script = string("probe ") + string(optarg) + " {}"; | |
674 | have_script = true; | |
675 | break; | |
676 | ||
2fa2a091 NT |
677 | case 'F': |
678 | s.load_only = true; | |
679 | break; | |
680 | ||
5f0a03a6 JK |
681 | case 0: |
682 | switch (long_opt) | |
683 | { | |
684 | case LONG_OPT_KELF: | |
685 | s.consult_symtab = true; | |
686 | break; | |
687 | case LONG_OPT_KMAP: | |
688 | // Leave s.consult_symtab unset for now, to ease error checking. | |
689 | if (!s.kernel_symtab_path.empty()) | |
690 | { | |
691 | cerr << "You can't specify multiple --kmap options." << endl; | |
692 | usage(s, 1); | |
693 | } | |
694 | if (optarg) | |
695 | s.kernel_symtab_path = optarg; | |
696 | else | |
697 | #define PATH_TBD string("__TBD__") | |
698 | s.kernel_symtab_path = PATH_TBD; | |
699 | break; | |
700 | case LONG_OPT_IGNORE_VMLINUX: | |
701 | s.ignore_vmlinux = true; | |
702 | break; | |
703 | case LONG_OPT_IGNORE_DWARF: | |
704 | s.ignore_dwarf = true; | |
705 | break; | |
e0b4e89d FCE |
706 | case LONG_OPT_VERBOSE_PASS: |
707 | { | |
708 | bool ok = true; | |
709 | if (strlen(optarg) < 1 || strlen(optarg) > 5) | |
710 | ok = false; | |
711 | if (ok) | |
b688229d | 712 | for (unsigned i=0; i<strlen(optarg); i++) |
e0b4e89d FCE |
713 | if (isdigit (optarg[i])) |
714 | s.perpass_verbose[i] += optarg[i]-'0'; | |
715 | else | |
716 | ok = false; | |
717 | ||
718 | if (! ok) | |
719 | { | |
720 | cerr << "Invalid --vp argument: it takes 1 to 5 digits." << endl; | |
721 | usage (s, 1); | |
722 | } | |
723 | // NB: we don't do this: s.last_pass = strlen(optarg); | |
724 | break; | |
725 | } | |
3bd0d4df RA |
726 | case LONG_OPT_SKIP_BADVARS: |
727 | s.skip_badvars = true; | |
728 | break; | |
5f0a03a6 JK |
729 | default: |
730 | cerr << "Internal error parsing command arguments." << endl; | |
731 | usage(s, 1); | |
732 | } | |
733 | break; | |
734 | ||
2b066ec1 | 735 | default: |
277c1957 DS |
736 | usage (s, 1); |
737 | break; | |
2b066ec1 FCE |
738 | } |
739 | } | |
740 | ||
f272aacc LG |
741 | if(!s.bulk_mode && !s.merge) |
742 | { | |
743 | cerr << "-M option is valid only for bulk (relayfs) mode." <<endl; | |
277c1957 | 744 | usage (s, 1); |
f272aacc LG |
745 | } |
746 | ||
747 | if(!s.output_file.empty() && s.bulk_mode && !s.merge) | |
748 | { | |
749 | cerr << "You can't specify -M, -b and -o options together." <<endl; | |
277c1957 | 750 | usage (s, 1); |
f272aacc LG |
751 | } |
752 | ||
54dec22d DS |
753 | if((s.cmd != "") && (s.target_pid)) |
754 | { | |
755 | cerr << "You can't specify -c and -x options together." <<endl; | |
756 | usage (s, 1); | |
757 | } | |
758 | ||
5f0a03a6 JK |
759 | if (!s.kernel_symtab_path.empty()) |
760 | { | |
761 | if (s.consult_symtab) | |
762 | { | |
763 | cerr << "You can't specify --kelf and --kmap together." << endl; | |
764 | usage (s, 1); | |
765 | } | |
766 | s.consult_symtab = true; | |
767 | if (s.kernel_symtab_path == PATH_TBD) | |
768 | s.kernel_symtab_path = string("/boot/System.map-") + s.kernel_release; | |
769 | } | |
770 | ||
b5e66ada FCE |
771 | // Warn in case the target kernel release doesn't match the running one. |
772 | if (s.last_pass > 4 && | |
773 | (string(buf.release) != s.kernel_release || | |
774 | string(buf.machine) != s.architecture)) | |
775 | { | |
776 | if(! s.suppress_warnings) | |
777 | cerr << "WARNING: kernel release/architecture mismatch with host forces last-pass 4." << endl; | |
778 | s.last_pass = 4; | |
779 | } | |
ea3f75ae | 780 | |
2b066ec1 FCE |
781 | for (int i = optind; i < argc; i++) |
782 | { | |
783 | if (! have_script) | |
784 | { | |
785 | script_file = string (argv[i]); | |
786 | have_script = true; | |
787 | } | |
788 | else | |
f4b28491 | 789 | s.args.push_back (string (argv[i])); |
2b066ec1 FCE |
790 | } |
791 | ||
792 | // need a user file | |
793 | if (! have_script) | |
277c1957 DS |
794 | { |
795 | cerr << "A script must be specified." << endl; | |
796 | usage(s, 1); | |
797 | } | |
f4b28491 | 798 | |
a929fd0f Z |
799 | // translate path of runtime to absolute path |
800 | if (s.runtime_path[0] != '/') | |
801 | { | |
802 | char cwd[PATH_MAX]; | |
803 | if (getcwd(cwd, sizeof(cwd))) | |
804 | { | |
805 | s.runtime_path = string(cwd) + "/" + s.runtime_path; | |
806 | } | |
807 | } | |
808 | ||
f4b28491 | 809 | int rc = 0; |
c31df222 FCE |
810 | |
811 | // PASS 0: setting up | |
812 | s.verbose = s.perpass_verbose[0]; | |
2b066ec1 | 813 | |
d0a7f5a9 FCE |
814 | // For PR1477, we used to override $PATH and $LC_ALL and other stuff |
815 | // here. We seem to use complete pathnames in | |
816 | // buildrun.cxx/tapsets.cxx now, so this is not necessary. Further, | |
817 | // it interferes with util.cxx:find_executable(), used for $PATH | |
818 | // resolution. | |
861c2f28 | 819 | |
197a4d62 JS |
820 | s.kernel_base_release.assign(s.kernel_release, 0, s.kernel_release.find('-')); |
821 | ||
2b066ec1 | 822 | // arguments parsed; get down to business |
72d18b98 | 823 | if (s.verbose > 1) |
c0e526f0 FCE |
824 | { |
825 | version (); | |
826 | clog << "Session arch: " << s.architecture | |
827 | << " release: " << s.kernel_release | |
828 | << endl; | |
829 | } | |
2b066ec1 | 830 | |
f4b28491 FCE |
831 | // Create a temporary directory to build within. |
832 | // Be careful with this, as "s.tmpdir" is "rm -rf"'d at the end. | |
833 | { | |
c72dc86c | 834 | const char* tmpdir_env = getenv("TMPDIR"); |
ea8ea02c FCE |
835 | if (! tmpdir_env) |
836 | tmpdir_env = "/tmp"; | |
dff50e09 | 837 | |
ea8ea02c FCE |
838 | string stapdir = "/stapXXXXXX"; |
839 | string tmpdirt = tmpdir_env + stapdir; | |
533af4f0 | 840 | mode_t mask = umask(0); |
ea8ea02c | 841 | const char* tmpdir = mkdtemp((char *)tmpdirt.c_str()); |
533af4f0 | 842 | umask(mask); |
f4b28491 FCE |
843 | if (! tmpdir) |
844 | { | |
845 | const char* e = strerror (errno); | |
ea8ea02c FCE |
846 | cerr << "ERROR: cannot create temporary directory (\"" << tmpdirt << "\"): " << e << endl; |
847 | exit (1); // die | |
f4b28491 FCE |
848 | } |
849 | else | |
850 | s.tmpdir = tmpdir; | |
0d49d7bc | 851 | |
b0ee93c4 | 852 | if (s.verbose>1) |
0d49d7bc | 853 | clog << "Created temporary directory \"" << s.tmpdir << "\"" << endl; |
f4b28491 | 854 | } |
2b066ec1 | 855 | |
1b78aef5 DS |
856 | // Create the name of the C source file within the temporary |
857 | // directory. | |
858 | s.translated_source = string(s.tmpdir) + "/" + s.module_name + ".c"; | |
859 | ||
dff50e09 | 860 | // Set up our handler to catch routine signals, to allow clean |
49abf162 | 861 | // and reasonably timely exit. |
3972b443 | 862 | setup_signals(&handle_interrupt); |
49abf162 | 863 | |
5ee1c56b FCE |
864 | struct tms tms_before; |
865 | times (& tms_before); | |
1d738eed FCE |
866 | struct timeval tv_before; |
867 | gettimeofday (&tv_before, NULL); | |
2b066ec1 FCE |
868 | |
869 | // PASS 1a: PARSING USER SCRIPT | |
f59e98c4 FCE |
870 | |
871 | struct stat user_file_stat; | |
872 | int user_file_stat_rc = -1; | |
873 | ||
69c68955 | 874 | if (script_file == "-") |
129be0ac FCE |
875 | { |
876 | s.user_file = parser::parse (s, cin, s.guru_mode); | |
877 | user_file_stat_rc = fstat (STDIN_FILENO, & user_file_stat); | |
878 | } | |
69c68955 | 879 | else if (script_file != "") |
f59e98c4 FCE |
880 | { |
881 | s.user_file = parser::parse (s, script_file, s.guru_mode); | |
882 | user_file_stat_rc = stat (script_file.c_str(), & user_file_stat); | |
883 | } | |
2b066ec1 FCE |
884 | else |
885 | { | |
886 | istringstream ii (cmdline_script); | |
177a8ead | 887 | s.user_file = parser::parse (s, ii, s.guru_mode); |
2b066ec1 FCE |
888 | } |
889 | if (s.user_file == 0) | |
890 | // syntax errors already printed | |
891 | rc ++; | |
377b8831 | 892 | |
5519d363 | 893 | // Construct arch / kernel-versioning search path |
377b8831 | 894 | vector<string> version_suffixes; |
6f9f33e2 | 895 | string kvr = s.kernel_release; |
5519d363 KS |
896 | const string& arch = s.architecture; |
897 | // add full kernel-version-release (2.6.NN-FOOBAR) + arch | |
898 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
377b8831 | 899 | version_suffixes.push_back ("/" + kvr); |
5519d363 | 900 | // add kernel version (2.6.NN) + arch |
197a4d62 JS |
901 | if (kvr != s.kernel_base_release) { |
902 | kvr = s.kernel_base_release; | |
6f9f33e2 JS |
903 | version_suffixes.push_back ("/" + kvr + "/" + arch); |
904 | version_suffixes.push_back ("/" + kvr); | |
5519d363 KS |
905 | } |
906 | // add kernel family (2.6) + arch | |
6f9f33e2 JS |
907 | string::size_type dot1_index = kvr.find ('.'); |
908 | string::size_type dot2_index = kvr.rfind ('.'); | |
909 | while (dot2_index > dot1_index && dot2_index != string::npos) { | |
910 | kvr.erase(dot2_index); | |
911 | version_suffixes.push_back ("/" + kvr + "/" + arch); | |
912 | version_suffixes.push_back ("/" + kvr); | |
913 | dot2_index = kvr.rfind ('.'); | |
5519d363 KS |
914 | } |
915 | // add architecture search path | |
916 | version_suffixes.push_back("/" + arch); | |
377b8831 FCE |
917 | // add empty string as last element |
918 | version_suffixes.push_back (""); | |
2b066ec1 FCE |
919 | |
920 | // PASS 1b: PARSING LIBRARY SCRIPTS | |
f4b28491 | 921 | for (unsigned i=0; i<s.include_path.size(); i++) |
2b066ec1 | 922 | { |
377b8831 FCE |
923 | // now iterate upon it |
924 | for (unsigned k=0; k<version_suffixes.size(); k++) | |
2b066ec1 | 925 | { |
377b8831 FCE |
926 | glob_t globbuf; |
927 | string dir = s.include_path[i] + version_suffixes[k] + "/*.stp"; | |
928 | int r = glob(dir.c_str (), 0, NULL, & globbuf); | |
929 | if (r == GLOB_NOSPACE || r == GLOB_ABORTED) | |
2b066ec1 | 930 | rc ++; |
377b8831 FCE |
931 | // GLOB_NOMATCH is acceptable |
932 | ||
c4a94c1a | 933 | if (s.verbose>1 && globbuf.gl_pathc > 0) |
377b8831 | 934 | clog << "Searched '" << dir << "', " |
c4a94c1a | 935 | << "found " << globbuf.gl_pathc << endl; |
2b066ec1 | 936 | |
377b8831 FCE |
937 | for (unsigned j=0; j<globbuf.gl_pathc; j++) |
938 | { | |
49abf162 FCE |
939 | if (pending_interrupts) |
940 | break; | |
941 | ||
942 | // XXX: privilege only for /usr/share/systemtap? | |
177a8ead | 943 | stapfile* f = parser::parse (s, globbuf.gl_pathv[j], true); |
377b8831 FCE |
944 | if (f == 0) |
945 | rc ++; | |
946 | else | |
24cb178f | 947 | s.library_files.push_back (f); |
f59e98c4 FCE |
948 | |
949 | struct stat tapset_file_stat; | |
950 | int stat_rc = stat (globbuf.gl_pathv[j], & tapset_file_stat); | |
951 | if (stat_rc == 0 && user_file_stat_rc == 0 && | |
952 | user_file_stat.st_dev == tapset_file_stat.st_dev && | |
953 | user_file_stat.st_ino == tapset_file_stat.st_ino) | |
954 | { | |
129be0ac FCE |
955 | clog << "usage error: tapset file '" << globbuf.gl_pathv[j] |
956 | << "' cannot be run directly as a session script." << endl; | |
f59e98c4 FCE |
957 | rc ++; |
958 | } | |
959 | ||
377b8831 | 960 | } |
d54d4661 | 961 | |
377b8831 FCE |
962 | globfree (& globbuf); |
963 | } | |
2b066ec1 FCE |
964 | } |
965 | ||
f4b28491 | 966 | if (rc == 0 && s.last_pass == 1) |
2b066ec1 | 967 | { |
f4b28491 FCE |
968 | cout << "# parse tree dump" << endl; |
969 | s.user_file->print (cout); | |
970 | cout << endl; | |
ae56fddd FCE |
971 | if (s.verbose) |
972 | for (unsigned i=0; i<s.library_files.size(); i++) | |
973 | { | |
974 | s.library_files[i]->print (cout); | |
975 | cout << endl; | |
976 | } | |
2b066ec1 FCE |
977 | } |
978 | ||
5ee1c56b FCE |
979 | struct tms tms_after; |
980 | times (& tms_after); | |
981 | unsigned _sc_clk_tck = sysconf (_SC_CLK_TCK); | |
1d738eed FCE |
982 | struct timeval tv_after; |
983 | gettimeofday (&tv_after, NULL); | |
5ee1c56b FCE |
984 | |
985 | #define TIMESPRINT \ | |
986 | (tms_after.tms_cutime + tms_after.tms_utime \ | |
1d738eed | 987 | - tms_before.tms_cutime - tms_before.tms_utime) * 1000 / (_sc_clk_tck) << "usr/" \ |
5ee1c56b | 988 | << (tms_after.tms_cstime + tms_after.tms_stime \ |
1d738eed FCE |
989 | - tms_before.tms_cstime - tms_before.tms_stime) * 1000 / (_sc_clk_tck) << "sys/" \ |
990 | << ((tv_after.tv_sec - tv_before.tv_sec) * 1000 + \ | |
991 | ((long)tv_after.tv_usec - (long)tv_before.tv_usec) / 1000) << "real ms." | |
5ee1c56b | 992 | |
eaf134e7 | 993 | // syntax errors, if any, are already printed |
5ee1c56b FCE |
994 | if (s.verbose) |
995 | { | |
996 | clog << "Pass 1: parsed user script and " | |
997 | << s.library_files.size() | |
998 | << " library script(s) in " | |
999 | << TIMESPRINT | |
1000 | << endl; | |
1001 | } | |
0d49d7bc | 1002 | |
708ce1f3 | 1003 | if (rc && !s.listing_mode) |
2cfb0e46 | 1004 | cerr << "Pass 1: parse failed. " |
c3157bcd | 1005 | << "Try again with another '--vp 1' option." |
2cfb0e46 FCE |
1006 | << endl; |
1007 | ||
49abf162 | 1008 | if (rc || s.last_pass == 1 || pending_interrupts) goto cleanup; |
f4b28491 | 1009 | |
5ee1c56b | 1010 | times (& tms_before); |
1d738eed | 1011 | gettimeofday (&tv_before, NULL); |
5ee1c56b | 1012 | |
2b066ec1 | 1013 | // PASS 2: ELABORATION |
e0b4e89d | 1014 | s.verbose = s.perpass_verbose[1]; |
0d49d7bc | 1015 | rc = semantic_pass (s); |
f4b28491 | 1016 | |
16442b90 | 1017 | if (s.listing_mode || (rc == 0 && s.last_pass == 2)) |
1b78aef5 | 1018 | printscript(s, cout); |
2b066ec1 | 1019 | |
5ee1c56b | 1020 | times (& tms_after); |
1d738eed FCE |
1021 | gettimeofday (&tv_after, NULL); |
1022 | ||
b0ee93c4 | 1023 | if (s.verbose) clog << "Pass 2: analyzed script: " |
0d49d7bc FCE |
1024 | << s.probes.size() << " probe(s), " |
1025 | << s.functions.size() << " function(s), " | |
b20febf3 | 1026 | << s.embeds.size() << " embed(s), " |
5ee1c56b FCE |
1027 | << s.globals.size() << " global(s) in " |
1028 | << TIMESPRINT | |
1029 | << endl; | |
0d49d7bc | 1030 | |
708ce1f3 | 1031 | if (rc && !s.listing_mode) |
377b8831 | 1032 | cerr << "Pass 2: analysis failed. " |
c3157bcd | 1033 | << "Try again with another '--vp 01' option." |
2cfb0e46 | 1034 | << endl; |
1b78aef5 DS |
1035 | // Generate hash. There isn't any point in generating the hash |
1036 | // if last_pass is 2, since we'll quit before using it. | |
1037 | else if (s.last_pass != 2 && s.use_cache) | |
1038 | { | |
1039 | ostringstream o; | |
1040 | unsigned saved_verbose; | |
1b78aef5 | 1041 | |
9abec538 FCE |
1042 | { |
1043 | // Make sure we're in verbose mode, so that printscript() | |
1044 | // will output function/probe bodies. | |
1045 | saved_verbose = s.verbose; | |
1046 | s.verbose = 3; | |
1047 | printscript(s, o); // Print script to 'o' | |
1048 | s.verbose = saved_verbose; | |
1049 | } | |
1b78aef5 DS |
1050 | |
1051 | // Generate hash | |
1052 | find_hash (s, o.str()); | |
1053 | ||
1054 | // See if we can use cached source/module. | |
1055 | if (get_from_cache(s)) | |
1056 | { | |
db3a383b JK |
1057 | // If our last pass isn't 5, we're done (since passes 3 and |
1058 | // 4 just generate what we just pulled out of the cache). | |
49abf162 | 1059 | if (s.last_pass < 5 || pending_interrupts) goto cleanup; |
1b78aef5 | 1060 | |
db3a383b JK |
1061 | // Short-circuit to pass 5. |
1062 | goto pass_5; | |
1b78aef5 DS |
1063 | } |
1064 | } | |
377b8831 | 1065 | |
16442b90 | 1066 | if (rc || s.listing_mode || s.last_pass == 2 || pending_interrupts) goto cleanup; |
f4b28491 | 1067 | |
2b066ec1 | 1068 | // PASS 3: TRANSLATION |
e0b4e89d | 1069 | s.verbose = s.perpass_verbose[2]; |
5ee1c56b | 1070 | times (& tms_before); |
1d738eed FCE |
1071 | gettimeofday (&tv_before, NULL); |
1072 | ||
0d49d7bc | 1073 | rc = translate_pass (s); |
f4b28491 FCE |
1074 | |
1075 | if (rc == 0 && s.last_pass == 3) | |
1076 | { | |
1077 | ifstream i (s.translated_source.c_str()); | |
1078 | cout << i.rdbuf(); | |
1079 | } | |
0d49d7bc | 1080 | |
5ee1c56b | 1081 | times (& tms_after); |
1d738eed | 1082 | gettimeofday (&tv_after, NULL); |
5ee1c56b | 1083 | |
0d49d7bc FCE |
1084 | if (s.verbose) clog << "Pass 3: translated to C into \"" |
1085 | << s.translated_source | |
5ee1c56b FCE |
1086 | << "\" in " |
1087 | << TIMESPRINT | |
1088 | << endl; | |
0d49d7bc | 1089 | |
377b8831 | 1090 | if (rc) |
2cfb0e46 | 1091 | cerr << "Pass 3: translation failed. " |
c3157bcd | 1092 | << "Try again with another '--vp 001' option." |
2cfb0e46 | 1093 | << endl; |
377b8831 | 1094 | |
49abf162 | 1095 | if (rc || s.last_pass == 3 || pending_interrupts) goto cleanup; |
d54d4661 | 1096 | |
f4b28491 | 1097 | // PASS 4: COMPILATION |
e0b4e89d | 1098 | s.verbose = s.perpass_verbose[3]; |
5ee1c56b | 1099 | times (& tms_before); |
1d738eed | 1100 | gettimeofday (&tv_before, NULL); |
0d49d7bc | 1101 | rc = compile_pass (s); |
9abec538 FCE |
1102 | |
1103 | if (rc == 0 && s.last_pass == 4) | |
422dc4e1 FCE |
1104 | { |
1105 | cout << ((s.hash_path == "") ? (s.module_name + string(".ko")) : s.hash_path); | |
1106 | cout << endl; | |
1107 | } | |
9abec538 | 1108 | |
5ee1c56b | 1109 | times (& tms_after); |
1d738eed | 1110 | gettimeofday (&tv_after, NULL); |
5ee1c56b FCE |
1111 | |
1112 | if (s.verbose) clog << "Pass 4: compiled C into \"" | |
1113 | << s.module_name << ".ko" | |
1114 | << "\" in " | |
1115 | << TIMESPRINT | |
1116 | << endl; | |
f4b28491 | 1117 | |
eaf134e7 FCE |
1118 | if (rc) |
1119 | cerr << "Pass 4: compilation failed. " | |
c3157bcd | 1120 | << "Try again with another '--vp 0001' option." |
2cfb0e46 | 1121 | << endl; |
fc52ef5b | 1122 | else |
1b78aef5 | 1123 | { |
06c7e057 | 1124 | // Update cache. Cache cleaning is kicked off at the end of this function. |
fc52ef5b | 1125 | if (s.use_cache) |
f4d5049b | 1126 | add_to_cache(s); |
fc52ef5b | 1127 | |
f4d5049b FCE |
1128 | // We may need to save the module in $CWD if the cache was |
1129 | // inaccessible for some reason. | |
1130 | if (! s.use_cache && s.last_pass == 4) | |
1131 | save_module = true; | |
1132 | ||
fc52ef5b | 1133 | // Copy module to the current directory. |
49abf162 | 1134 | if (save_module && !pending_interrupts) |
fc52ef5b DS |
1135 | { |
1136 | string module_src_path = s.tmpdir + "/" + s.module_name + ".ko"; | |
1137 | string module_dest_path = s.module_name + ".ko"; | |
1138 | ||
1139 | if (s.verbose > 1) | |
1140 | clog << "Copying " << module_src_path << " to " | |
1141 | << module_dest_path << endl; | |
1142 | if (copy_file(module_src_path.c_str(), module_dest_path.c_str()) != 0) | |
1143 | cerr << "Copy failed (\"" << module_src_path << "\" to \"" | |
1144 | << module_dest_path << "\"): " << strerror(errno) << endl; | |
2035bcd4 DB |
1145 | |
1146 | #if HAVE_NSS | |
1147 | // Save the signature as well. | |
1148 | assert (! s.cert_db_path.empty()); | |
1149 | module_src_path += ".sgn"; | |
1150 | module_dest_path += ".sgn"; | |
1151 | ||
1152 | if (s.verbose > 1) | |
1153 | clog << "Copying " << module_src_path << " to " | |
1154 | << module_dest_path << endl; | |
1155 | if (copy_file(module_src_path.c_str(), module_dest_path.c_str()) != 0) | |
1156 | cerr << "Copy failed (\"" << module_src_path << "\" to \"" | |
1157 | << module_dest_path << "\"): " << strerror(errno) << endl; | |
1158 | #endif | |
fc52ef5b | 1159 | } |
1b78aef5 | 1160 | } |
eaf134e7 | 1161 | |
49abf162 | 1162 | if (rc || s.last_pass == 4 || pending_interrupts) goto cleanup; |
f4b28491 | 1163 | |
9abec538 | 1164 | |
0d49d7bc | 1165 | // PASS 5: RUN |
1b78aef5 | 1166 | pass_5: |
e0b4e89d | 1167 | s.verbose = s.perpass_verbose[4]; |
5ee1c56b | 1168 | times (& tms_before); |
1d738eed | 1169 | gettimeofday (&tv_before, NULL); |
03d569d3 FCE |
1170 | // NB: this message is a judgement call. The other passes don't emit |
1171 | // a "hello, I'm starting" message, but then the others aren't interactive | |
1172 | // and don't take an indefinite amount of time. | |
1173 | if (s.verbose) clog << "Pass 5: starting run." << endl; | |
0d49d7bc | 1174 | rc = run_pass (s); |
5ee1c56b | 1175 | times (& tms_after); |
1d738eed | 1176 | gettimeofday (&tv_after, NULL); |
5ee1c56b FCE |
1177 | if (s.verbose) clog << "Pass 5: run completed in " |
1178 | << TIMESPRINT | |
1179 | << endl; | |
f4b28491 | 1180 | |
eaf134e7 FCE |
1181 | if (rc) |
1182 | cerr << "Pass 5: run failed. " | |
c3157bcd | 1183 | << "Try again with another '--vp 00001' option." |
2cfb0e46 | 1184 | << endl; |
eaf134e7 | 1185 | |
0d49d7bc | 1186 | // if (rc) goto cleanup; |
2b066ec1 | 1187 | |
c31df222 | 1188 | // PASS 6: cleaning up |
0d49d7bc | 1189 | cleanup: |
c3a3c0c9 WC |
1190 | |
1191 | // update the database information | |
49abf162 | 1192 | if (!rc && s.tapset_compile_coverage && !pending_interrupts) { |
1c0b94ef | 1193 | #ifdef HAVE_LIBSQLITE3 |
c3a3c0c9 | 1194 | update_coverage_db(s); |
1c0b94ef FCE |
1195 | #else |
1196 | cerr << "Coverage database not available without libsqlite3" << endl; | |
1197 | #endif | |
c3a3c0c9 WC |
1198 | } |
1199 | ||
f4b28491 FCE |
1200 | // Clean up temporary directory. Obviously, be careful with this. |
1201 | if (s.tmpdir == "") | |
1202 | ; // do nothing | |
1203 | else | |
1204 | { | |
1205 | if (s.keep_tmpdir) | |
0d49d7bc | 1206 | clog << "Keeping temporary directory \"" << s.tmpdir << "\"" << endl; |
f4b28491 FCE |
1207 | else |
1208 | { | |
3972b443 DS |
1209 | // Ignore signals while we're deleting the temporary directory. |
1210 | setup_signals (SIG_IGN); | |
1211 | ||
1212 | // Remove the temporary directory. | |
ce3187ac | 1213 | string cleanupcmd = "rm -rf "; |
f4b28491 | 1214 | cleanupcmd += s.tmpdir; |
b0ee93c4 | 1215 | if (s.verbose>1) clog << "Running " << cleanupcmd << endl; |
4cc40e82 | 1216 | int status = stap_system (cleanupcmd.c_str()); |
b0ee93c4 | 1217 | if (status != 0 && s.verbose>1) |
d54d4661 | 1218 | clog << "Cleanup command failed, status: " << status << endl; |
f4b28491 FCE |
1219 | } |
1220 | } | |
2b066ec1 | 1221 | |
49abf162 | 1222 | return (rc||pending_interrupts) ? EXIT_FAILURE : EXIT_SUCCESS; |
2b066ec1 | 1223 | } |
73267b89 JS |
1224 | |
1225 | /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */ |