3 // Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License as
7 // published by the Free Software Foundation; either version 3, or (at
8 // your option) any later version.
10 // This library is distributed in the hope that it will be useful, but
11 // WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with this library; see the file COPYING3. If not see
17 // <http://www.gnu.org/licenses/>.
20 // Benjamin Kosnik <bkoz@redhat.com>
22 #include "testsuite_abi.h"
33 symbol::init(string& data)
35 const char delim = ':';
36 const char version_delim = '@';
37 const string::size_type npos = string::npos;
38 string::size_type n = 0;
41 if (data.find("FUNC") == 0)
42 type = symbol::function;
43 else if (data.find("OBJECT") == 0)
44 type = symbol::object;
46 n = data.find_first_of(delim);
48 data.erase(data.begin(), data.begin() + n + 1);
50 // Iff object, get size info.
51 if (type == symbol::object)
53 n = data.find_first_of(delim);
56 string objectsize(data.begin(), data.begin() + n);
57 istringstream iss(objectsize);
62 data.erase(data.begin(), data.begin() + n + 1);
66 // Set the name and raw_name.
67 raw_name = string(data.begin(), data.end());
68 n = data.find_first_of(version_delim);
71 // Found version string.
72 name = string(data.begin(), data.begin() + n);
73 n = data.find_last_of(version_delim);
74 data.erase(data.begin(), data.begin() + n + 1);
81 // No versioning info.
82 name = string(data.begin(), data.end());
83 version_status = symbol::none;
86 // Set the demangled name.
87 demangled_name = demangle(name);
93 const char tab = '\t';
96 if (demangled_name != name)
97 cout << demangled_name << endl;
100 switch (version_status)
109 vers = "incompatible";
112 vers = "unversioned";
117 cout << "version status: " << vers << endl;
119 if (version_name.size()
120 && (version_status == compatible || version_status == incompatible))
121 cout << version_name << endl;
127 type_string = "function";
130 type_string = "object";
133 type_string = "uncategorized";
136 type_string = "<default>";
138 cout << "type: " << type_string << endl;
141 cout << "type size: " << size << endl;
143 string status_string;
147 status_string = "added";
150 status_string = "subtracted";
153 status_string = "undesignated";
156 status_string = "<default>";
158 cout << "status: " << status_string << endl;
165 check_version(symbol& test, bool added)
167 // Construct list of compatible versions.
168 typedef std::vector<std::string> compat_list;
169 static compat_list known_versions;
170 if (known_versions.empty())
172 // NB: First version here must be the default version for this
173 // version of DT_SONAME.
174 known_versions.push_back("GLIBCXX_3.4");
175 known_versions.push_back("GLIBCXX_3.4.1");
176 known_versions.push_back("GLIBCXX_3.4.2");
177 known_versions.push_back("GLIBCXX_3.4.3");
178 known_versions.push_back("GLIBCXX_3.4.4");
179 known_versions.push_back("GLIBCXX_3.4.5");
180 known_versions.push_back("GLIBCXX_3.4.6");
181 known_versions.push_back("GLIBCXX_3.4.7");
182 known_versions.push_back("GLIBCXX_3.4.8");
183 known_versions.push_back("GLIBCXX_3.4.9");
184 known_versions.push_back("GLIBCXX_3.4.10");
185 known_versions.push_back("GLIBCXX_3.4.11");
186 known_versions.push_back("GLIBCXX_3.4.12");
187 known_versions.push_back("GLIBCXX_3.4.13");
188 known_versions.push_back("GLIBCXX_3.4.14");
189 known_versions.push_back("GLIBCXX_LDBL_3.4");
190 known_versions.push_back("GLIBCXX_LDBL_3.4.7");
191 known_versions.push_back("GLIBCXX_LDBL_3.4.10");
192 known_versions.push_back("CXXABI_1.3");
193 known_versions.push_back("CXXABI_1.3.1");
194 known_versions.push_back("CXXABI_1.3.2");
195 known_versions.push_back("CXXABI_1.3.3");
196 known_versions.push_back("CXXABI_1.3.4");
197 known_versions.push_back("CXXABI_LDBL_1.3");
199 compat_list::iterator begin = known_versions.begin();
200 compat_list::iterator end = known_versions.end();
202 // Check for compatible version.
203 if (test.version_name.size())
205 compat_list::iterator it1 = find(begin, end, test.version_name);
206 compat_list::iterator it2 = find(begin, end, test.name);
208 test.version_status = symbol::compatible;
210 test.version_status = symbol::incompatible;
212 // Check that added symbols aren't added in the base version.
213 if (added && test.version_name == known_versions[0])
214 test.version_status = symbol::incompatible;
216 // Check that long double compatibility symbols demangled as
217 // __float128 are put into some _LDBL_ version name.
218 if (added && test.demangled_name.find("__float128") != std::string::npos)
220 // Has to be in _LDBL_ version name.
221 if (test.version_name.find("_LDBL_") == std::string::npos)
222 test.version_status = symbol::incompatible;
225 // Check for weak label.
226 if (it1 == end && it2 == end)
227 test.version_status = symbol::incompatible;
232 // version as compatible
239 // New version labels are ok. The rest are not.
240 compat_list::iterator it2 = find(begin, end, test.name);
242 test.version_status = symbol::compatible;
244 test.version_status = symbol::incompatible;
247 return test.version_status == symbol::compatible;
251 check_compatible(symbol& lhs, symbol& rhs, bool verbose)
254 const char tab = '\t';
256 // Check to see if symbol_objects are compatible.
257 if (lhs.type != rhs.type)
261 cout << tab << "incompatible types" << endl;
264 if (lhs.name != rhs.name)
268 cout << tab << "incompatible names" << endl;
271 if (lhs.size != rhs.size)
276 cout << tab << "incompatible sizes" << endl;
277 cout << tab << lhs.size << endl;
278 cout << tab << rhs.size << endl;
282 if (lhs.version_name != rhs.version_name
283 && !check_version(lhs) && !check_version(rhs))
288 cout << tab << "incompatible versions" << endl;
289 cout << tab << lhs.version_name << endl;
290 cout << tab << rhs.version_name << endl;
302 has_symbol(const string& name, const symbols& s) throw()
303 { return s.find(name) != s.end(); }
306 get_symbol(const string& name, const symbols& s)
308 symbols::const_iterator i = s.find(name);
316 os << "get_symbol failed for symbol " << name;
317 __throw_logic_error(os.str().c_str());
322 examine_symbol(const char* name, const char* file)
326 symbols s = create_symbols(file);
327 const symbol& sym = get_symbol(name, s);
331 { __throw_exception_again; }
335 compare_symbols(const char* baseline_file, const char* test_file,
338 // Input both lists of symbols into container.
339 symbols baseline = create_symbols(baseline_file);
340 symbols test = create_symbols(test_file);
342 // Sanity check results.
343 if (!baseline.size() || !test.size())
345 cerr << "Problems parsing the list of exported symbols." << endl;
349 // Check to see if any long double compatibility symbols are produced.
350 bool ld_version_found(false);
351 symbols::iterator li(test.begin());
352 while (!ld_version_found && li != test.end())
354 if (li->second.version_name.find("_LDBL_") != std::string::npos)
355 ld_version_found = true;
360 // Assuming all baseline names and test names are both unique w/ no
363 // The names added to missing_names are baseline names not found in
365 // -> symbols that have been deleted.
367 // The names added to added_names are test names not in
369 // -> symbols that have been added.
370 typedef std::vector<std::string> symbol_names;
371 symbol_names shared_names;
372 symbol_names missing_names;
373 symbol_names added_names;
374 for (li = test.begin(); li != test.end(); ++li)
375 added_names.push_back(li->first);
377 for (symbols::iterator i = baseline.begin(); i != baseline.end(); ++i)
379 string name(i->first);
380 symbol_names::iterator end = added_names.end();
381 symbol_names::iterator it = find(added_names.begin(), end, name);
385 shared_names.push_back(name);
386 added_names.erase(it);
390 // Iff no test long double compatibility symbols at all and the symbol
391 // missing is a baseline long double compatibility symbol, skip.
392 string version_name(i->second.version_name);
393 bool base_ld(version_name.find("_LDBL_") != std::string::npos);
394 if (!base_ld || base_ld && ld_version_found)
395 missing_names.push_back(name);
399 // Fill out list of incompatible symbols.
400 typedef pair<symbol, symbol> symbol_pair;
401 vector<symbol_pair> incompatible;
403 // Check missing names for compatibility.
404 for (size_t j = 0; j < missing_names.size(); ++j)
406 symbol& sbase = baseline[missing_names[j]];
407 sbase.status = symbol::subtracted;
408 incompatible.push_back(symbol_pair(sbase, sbase));
411 // Check shared names for compatibility.
412 const symbol_names::size_type shared_size = shared_names.size();
413 for (size_t k = 0; k < shared_size; ++k)
415 symbol& sbase = baseline[shared_names[k]];
416 symbol& stest = test[shared_names[k]];
417 stest.status = symbol::existing;
418 if (!check_compatible(sbase, stest))
419 incompatible.push_back(symbol_pair(sbase, stest));
422 // Check added names for compatibility.
423 const symbol_names::size_type added_size = added_names.size();
424 for (size_t l = 0; l < added_size; ++l)
426 symbol& stest = test[added_names[l]];
427 stest.status = symbol::added;
428 if (!check_version(stest, true))
429 incompatible.push_back(symbol_pair(stest, stest));
433 if (verbose && added_names.size())
435 cout << endl << added_names.size() << " added symbols " << endl;
436 for (size_t j = 0; j < added_names.size() ; ++j)
439 test[added_names[j]].print();
443 if (verbose && missing_names.size())
445 cout << endl << missing_names.size() << " missing symbols " << endl;
446 for (size_t j = 0; j < missing_names.size() ; ++j)
449 baseline[missing_names[j]].print();
453 if (verbose && incompatible.size())
455 cout << endl << incompatible.size() << " incompatible symbols " << endl;
456 for (size_t j = 0; j < incompatible.size() ; ++j)
458 // First, print index.
461 // Second, report name.
462 symbol& sbase = incompatible[j].first;
463 symbol& stest = incompatible[j].second;
466 // Second, report reason or reasons incompatible.
467 check_compatible(sbase, stest, true);
471 cout << "\n\t\t=== libstdc++-v3 check-abi Summary ===" << endl;
473 cout << "# of added symbols:\t\t " << added_names.size() << endl;
474 cout << "# of missing symbols:\t\t " << missing_names.size() << endl;
475 cout << "# of incompatible symbols:\t " << incompatible.size() << endl;
477 cout << "using: " << baseline_file << endl;
479 return !(missing_names.size() || incompatible.size());
484 create_symbols(const char* file)
490 // Organize file data into an associated container (symbols) of symbol
491 // objects mapped to mangled names without versioning
495 while (getline(ifs, line).good())
506 os << "create_symbols failed for file " << file;
507 __throw_runtime_error(os.str().c_str());
514 demangle(const std::string& mangled)
517 if (mangled[0] != '_' || mangled[1] != 'Z')
519 // This is not a mangled symbol, thus has "C" linkage.
520 name = mangled.c_str();
524 // Use __cxa_demangle to demangle.
526 name = abi::__cxa_demangle(mangled.c_str(), 0, 0, &status);
532 name = "error code = 0: success";
535 name = "error code = -1: memory allocation failure";
538 name = "error code = -2: invalid mangled name";
541 name = "error code = -3: invalid arguments";
544 name = "error code unknown - who knows what happened";