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* Make IPDBSession::getGlobalScope a non-const methodAdrian McCarthy2017-06-221-3/+1
| | | | | | | | | | | | There doesn't seem to be a compelling reason why this method should be const other than it was possible with the DIA implementation. The native session is going to act as a symbol factory and cache. This could be acheived with mutable (and the existing const_cast), but it seems cleaner to accept that this method affects the state of the session. This change eliminates an existing const_cast. llvm-svn: 306041
* Don't include TestingSupport in LLVM_LINK_COMPONENTS.Zachary Turner2017-06-141-1/+2
| | | | | | | | Instead use target_link_libraries directly. Thanks to Juergen Ributzka for the suggestion, which fixes an issue when llvm is configured with no targets. llvm-svn: 305421
* [gtest] Create a shared include directory for gtest utilities.Zachary Turner2017-06-147-195/+148
| | | | | | | | | | | | | | | | | | | | | | | Many times unit tests for different libraries would like to use the same helper functions for checking common types of errors. This patch adds a common library with helpers for testing things in Support, and introduces helpers in here for integrating the llvm::Error and llvm::Expected<T> classes with gtest and gmock. Normally, we would just be able to write: EXPECT_THAT(someFunction(), succeeded()); but due to some quirks in llvm::Error's move semantics, gmock doesn't make this easy, so two macros EXPECT_THAT_ERROR() and EXPECT_THAT_EXPECTED() are introduced to gloss over the difficulties. Consider this an exception, and possibly only temporary as we look for ways to improve this. Differential Revision: https://reviews.llvm.org/D33059 llvm-svn: 305395
* [PDB] Fix use after free.Zachary Turner2017-06-031-35/+70
| | | | | | | | | | | | | | | | | | | | | | | Previously MappedBlockStream owned its own BumpPtrAllocator that it would allocate from when a read crossed a block boundary. This way it could still return the user a contiguous buffer of the requested size. However, It's not uncommon to open a stream, read some stuff, close it, and then save the information for later. After all, since the entire file is mapped into memory, the data should always be available as long as the file is open. Of course, the exception to this is when the data isn't *in* the file, but rather in some buffer that we temporarily allocated to present this contiguous view. And this buffer would get destroyed as soon as the strema was closed. The fix here is to force the user to specify the allocator, this way it can provide an allocator that has whatever lifetime it chooses. Differential Revision: https://reviews.llvm.org/D33858 llvm-svn: 304623
* Fix a bug in MappedBlockStream.Zachary Turner2017-05-251-26/+25
| | | | | | | | | | It was using the number of blocks of the entire PDB file as the number of blocks of each stream that was created. This was only an issue in the readLongestContiguousChunk function, which was never called prior. This bug surfaced when I updated an algorithm to use this function and the algorithm broke. llvm-svn: 303916
* [CodeView] Simplify the use of visiting type records & streams.Zachary Turner2017-05-171-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is often a lot of boilerplate code required to visit a type record or type stream. The #1 use case is that you have a sequence of bytes that represent one or more records, and you want to deserialize each one, switch on it, and call a callback with the deserialized record that the user can examine. Currently this requires at least 6 lines of code: codeview::TypeVisitorCallbackPipeline Pipeline; Pipeline.addCallbackToPipeline(Deserializer); Pipeline.addCallbackToPipeline(MyCallbacks); codeview::CVTypeVisitor Visitor(Pipeline); consumeError(Visitor.visitTypeRecord(Record)); With this patch, it becomes one line of code: consumeError(codeview::visitTypeRecord(Record, MyCallbacks)); This is done by having the deserialization happen internally inside of the visitTypeRecord function. Since this is occasionally not desirable, the function provides a 3rd parameter that can be used to change this behavior. Hopefully this can significantly reduce the barrier to entry to using the visitation infrastructure. Differential Revision: https://reviews.llvm.org/D33245 llvm-svn: 303271
* Delete dead function causing compilation failure.Zachary Turner2017-05-031-6/+0
| | | | llvm-svn: 302057
* [llvm-readobj] Update readobj to re-use parsing code.Zachary Turner2017-05-032-6/+25
| | | | | | | | | | llvm-readobj hand rolls some CodeView parsing code for string tables, so this patch updates it to re-use some of the newly introduced parsing code in LLVMDebugInfoCodeView. Differential Revision: https://reviews.llvm.org/D32772 llvm-svn: 302052
* Resubmit r301986 and r301987 "Add codeview::StringTable"Zachary Turner2017-05-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | This was reverted due to a "missing" file, but in reality what happened was that I renamed a file, and then due to a merge conflict both the old file and the new file got added to the repository. This led to an unused cpp file being in the repo and not referenced by any CMakeLists.txt but #including a .h file that wasn't in the repo. In an even more unfortunate coincidence, CMake didn't report the unused cpp file because it was in a subdirectory of the folder with the CMakeLists.txt, and not in the same directory as any CMakeLists.txt. The presence of the unused file was then breaking certain tools that determine file lists by globbing rather than by what's specified in CMakeLists.txt In any case, the fix is to just remove the unused file from the patch set. llvm-svn: 302042
* Revert r301986 (and subsequent r301987).Daniel Jasper2017-05-031-2/+2
| | | | | | | | | The patch is failing to add StringTableStreamBuilder.h, but that isn't even discovered because the corresponding StringTableStreamBuilder.cpp isn't added to any CMakeLists.txt file and thus never built. I think this patch is just incomplete. llvm-svn: 302002
* Make codeview::StringTable.Zachary Turner2017-05-021-2/+2
| | | | | | | | | | | | | | | | | | | | Previously we had knowledge of how to serialize and deserialize a string table inside of DebugInfo/PDB, but the string table that it serializes contains a piece that is actually considered CodeView and can appear outside of a PDB. We already have logic in llvm-readobj and MCCodeView to read and write this format, so it doesn't make sense to duplicate the logic in DebugInfoPDB as well. This patch makes codeview::StringTable (for writing) and codeview::StringTableRef (for reading), updates DebugInfoPDB to use these classes for its own writing, and updates llvm-readobj to additionally use StringTableRef for reading. It's a bit more difficult to get MCCodeView to use this for writing, but it's a logical next step. llvm-svn: 301986
* Rename pdb::StringTable -> pdb::PDBStringTable.Zachary Turner2017-05-021-4/+4
| | | | | | | | With the forthcoming codeview::StringTable which a pdb::StringTable would hold an instance of as one member, this ambiguity becomes confusing. Rename to PDBStringTable to avoid this. llvm-svn: 301948
* [llvm-pdbdump] More advanced class definition dumping.Zachary Turner2017-04-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Previously the dumping of class definitions was very primitive, and it made it hard to do more than the most trivial of output formats when dumping. As such, we would only dump one line for each field, and then dump non-layout items like nested types and enums. With this patch, we do a complete analysis of the object hierarchy including aggregate types, bases, virtual bases, vftable analysis, etc. The only immediately visible effects of this are that a) we can now dump a line for the vfptr where before we would treat that as padding, and b) we now don't treat virtual bases that come at the end of a class as padding since we have a more detailed analysis of the class's storage usage. In subsequent patches, we should be able to use this analysis to display a complete graphical view of a class's layout including recursing arbitrarily deep into an object's base class / aggregate member hierarchy. llvm-svn: 300133
* [Support] Move Stream library from MSF -> Support.Zachary Turner2017-03-025-721/+10
| | | | | | | | | | After several smaller patches to get most of the core improvements finished up, this patch is a straight move and header fixup of the source. Differential Revision: https://reviews.llvm.org/D30266 llvm-svn: 296810
* Re-enable BinaryStreamTest.StreamReaderObject.Zachary Turner2017-03-011-10/+18
| | | | | | | This was failing because I was using memcmp to compare two objects that included padding bytes, which were uninitialized. llvm-svn: 296681
* Disable BinaryStreamTest.StreamReaderObject.Zachary Turner2017-03-011-1/+1
| | | | llvm-svn: 296672
* [PDB] Fix and re-enable BinaryStreamArray test.Zachary Turner2017-03-011-36/+38
| | | | | | | | | | | This was due to the test stream choosing an arbitrary partition index for introducing the discontinuity rather than choosing an index that would be correctly aligned for the type of data. Also added an assertion into FixedStreamArray so that this will be caught on all bots in the future, and not just the UBSan bot. llvm-svn: 296661
* [PDB] Re-add BinaryStreamTest.Zachary Turner2017-03-012-0/+701
| | | | | | | | This re-adds all the binary stream tests. This was reverted due to some misaligned reads. For now the offending test is disabled while I investigate. llvm-svn: 296643
* Remove unittests/DebugInfo/PDB/BinaryStreamTest.cpp (from r296555)Vedant Kumar2017-03-012-701/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It breaks the ToT UBSan bots: /Users/vk/Desktop/llvm/include/llvm/DebugInfo/MSF/BinaryStreamArray.h:246:12: runtime error: reference binding to misaligned address 0x7f925540939a for type 'const int', which requires 4 byte alignment 0x7f925540939a: note: pointer points here 05 00 00 00 01 00 00 00 02 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 70 98 50 06 01 00 ^ 0 DebugInfoPDBTests 0x0000000106263cbd llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 45 1 DebugInfoPDBTests 0x00000001062628ff llvm::sys::RunSignalHandlers() + 159 2 DebugInfoPDBTests 0x0000000106264593 SignalHandler(int) + 179 3 libsystem_platform.dylib 0x0000000107bb3fba _sigtramp + 26 4 libsystem_pthread.dylib 0x0000000107bd82c8 _pthread_keys + 9720 5 libsystem_c.dylib 0x0000000107947f83 abort + 127 6 libclang_rt.ubsan_osx_dynamic.dylib 0x0000000106bb5fc2 __sanitizer::Abort() + 66 7 DebugInfoPDBTests 0x000000010613f880 llvm::FixedStreamArrayIterator<int>::operator+=(long) + 0 8 DebugInfoPDBTests 0x000000010613f615 llvm::FixedStreamArrayIterator<int>::operator*() const + 37 9 DebugInfoPDBTests 0x000000010613f3cb std::__1::enable_if<__is_forward_iterator<llvm::FixedStreamArrayIterator<int> >::value, void>::type std::__1::vector<int, std::__1::allocator<int> >::__construct_at_end<llvm::FixedStreamArrayIterator<int> >(llvm::FixedStreamArrayIterator<int>, llvm::FixedStreamArrayIterator<int>, unsigned long) + 251 10 DebugInfoPDBTests 0x000000010613f292 std::__1::vector<int, std::__1::allocator<int> >::vector<llvm::FixedStreamArrayIterator<int> >(llvm::FixedStreamArrayIterator<int>, std::__1::enable_if<(__is_forward_iterator<llvm::FixedStreamArrayIterator<int> >::value) && (is_constructible<int, std::__1::iterator_traits<llvm::FixedStreamArrayIterator<int> >::reference>::value), llvm::FixedStreamArrayIterator<int> >::type) + 226 11 DebugInfoPDBTests 0x000000010613ddb7 std::__1::vector<int, std::__1::allocator<int> >::vector<llvm::FixedStreamArrayIterator<int> >(llvm::FixedStreamArrayIterator<int>, std::__1::enable_if<(__is_forward_iterator<llvm::FixedStreamArrayIterator<int> >::value) && (is_constructible<int, std::__1::iterator_traits<llvm::FixedStreamArrayIterator<int> >::reference>::value), llvm::FixedStreamArrayIterator<int> >::type) + 87 12 DebugInfoPDBTests 0x000000010613d4af (anonymous namespace)::BinaryStreamTest_StreamReaderIntegerArray_Test::TestBody() + 1279 13 DebugInfoPDBTests 0x00000001062780f3 testing::Test::Run() + 179 14 DebugInfoPDBTests 0x0000000106279594 testing::TestInfo::Run() + 308 15 DebugInfoPDBTests 0x000000010627a6a3 testing::TestCase::Run() + 307 16 DebugInfoPDBTests 0x00000001062849d4 testing::internal::UnitTestImpl::RunAllTests() + 756 17 DebugInfoPDBTests 0x0000000106284558 testing::UnitTest::Run() + 152 18 DebugInfoPDBTests 0x0000000106266fa5 main + 117 19 libdyld.dylib 0x00000001078506a5 start + 1 zsh: abort ./unittests/DebugInfo/PDB/DebugInfoPDBTests llvm-svn: 296641
* [PDB] Remove use of std error codes.Zachary Turner2017-03-011-7/+6
| | | | | | | | | | I already created a BinaryStreamError class for this purpose, so update the code to use that on the remaining occurrences of errc values. This should also address the issue which led to r296583. llvm-svn: 296640
* (Rewroking r296581) PDB/BinaryStreamTest.cpp: Appease mingw to avoid ↵NAKAMURA Takumi2017-03-011-3/+4
| | | | | | | | | | | | std::errc::no_buffer_space. Unfortunately, mingw's libstdc++ doesn't provide winsock2 errors. That said, we should avoid raising OS-oriented error code in our code. For now, I suggest to define custom error from std::error_category. See also; https://reviews.llvm.org/D20592 llvm-svn: 296583
* Revert r296581, "PDB/BinaryStreamTest.cpp: Appease mingw to avoid ↵NAKAMURA Takumi2017-03-011-3/+3
| | | | | | | | std::errc::no_buffer_space." Wrong commit -- I have unstaged changes. llvm-svn: 296582
* PDB/BinaryStreamTest.cpp: Appease mingw to avoid std::errc::no_buffer_space.NAKAMURA Takumi2017-03-011-3/+3
| | | | | | | | | | Unfortunately, mingw's libstdc++ doesn't provide winsock2 errors. That said, we should avoid raising OS-oriented error code in our code. For now, I suggest to define custom error from std::error_category. See also; https://reviews.llvm.org/D20592 llvm-svn: 296581
* Move constexpr arrays out of class definition.Zachary Turner2017-03-011-3/+4
| | | | | | GCC Linker doesn't seem to like this. llvm-svn: 296560
* Fix signed / unsigned comparison warning.Zachary Turner2017-03-011-1/+1
| | | | llvm-svn: 296557
* [PDB] Add an additional test for BinaryStreamRef.Zachary Turner2017-03-011-2/+58
| | | | | | | | | | | A bug was uncovered where if you have a StreamRef whose ViewOffset is > 0, then when you call readLongestContiguousChunk it will succeed even when it shouldn't, and it always return you a buffer that was taken as if the ViewOffset was 0. Fixed this bug and added a test for it. llvm-svn: 296556
* [PDB] Add tests for BinaryStream.Zachary Turner2017-03-012-0/+644
| | | | llvm-svn: 296555
* [PDB] Add BinaryStreamError.Zachary Turner2017-02-281-6/+6
| | | | | | | This migrates the stream code away from MSFError to using its own custom Error class. llvm-svn: 296494
* [PDB] Make streams carry their own endianness.Zachary Turner2017-02-283-10/+15
| | | | | | | | | | | | | Before the endianness was specified on each call to read or write of the StreamReader / StreamWriter, but in practice it's extremely rare for streams to have data encoded in multiple different endiannesses, so we should optimize for the 99% use case. This makes the code cleaner and more general, but otherwise has NFC. llvm-svn: 296415
* [PDB] Partial resubmit of r296215, which improved PDB Stream Library.Zachary Turner2017-02-273-39/+40
| | | | | | | | | | | | | | | | | This was reverted because it was breaking some builds, and because of incorrect error code usage. Since the CL was large and contained many different things, I'm resubmitting it in pieces. This portion is NFC, and consists of: 1) Renaming classes to follow a consistent naming convention. 2) Fixing the const-ness of the interface methods. 3) Adding detailed doxygen comments. 4) Fixing a few instances of passing `const BinaryStream& X`. These are now passed as `BinaryStreamRef X`. llvm-svn: 296394
* Revert r296215, "[PDB] General improvements to Stream library." and followings.NAKAMURA Takumi2017-02-255-812/+48
| | | | | | | | | | | | | | | | | r296215, "[PDB] General improvements to Stream library." r296217, "Disable BinaryStreamTest.StreamReaderObject temporarily." r296220, "Re-enable BinaryStreamTest.StreamReaderObject." r296244, "[PDB] Disable some tests that are breaking bots." r296249, "Add static_cast to silence -Wc++11-narrowing." std::errc::no_buffer_space should be used for OS-oriented errors for socket transmission. (Seek discussions around llvm/xray.) I could substitute s/no_buffer_space/others/g, but I revert whole them ATM. Could we define and use LLVM errors there? llvm-svn: 296258
* Add static_cast to silence -Wc++11-narrowing.Daniel Jasper2017-02-251-1/+1
| | | | llvm-svn: 296249
* [PDB] Disable some tests that are breaking bots.Zachary Turner2017-02-251-3/+3
| | | | | | | | This has to do with big endian, but I can't fix it until Monday. The code itself is fine, just the tests are wrong. Disabling 3 tests for now. llvm-svn: 296244
* Re-enable BinaryStreamTest.StreamReaderObject.Zachary Turner2017-02-252-34/+28
| | | | | | | I had an invalid pointer / size calculation that was causing a stack smash. Should be fixed now. llvm-svn: 296220
* Disable BinaryStreamTest.StreamReaderObject temporarily.Zachary Turner2017-02-251-33/+33
| | | | | | This is crashing on some bots, so I need some time to investigate. llvm-svn: 296217
* [PDB] General improvements to Stream library.Zachary Turner2017-02-255-48/+818
| | | | | | | | | | | | | | | This adds various new functionality and cleanup surrounding the use of the Stream library. Major changes include: * Renaming of all classes for more consistency / meaningfulness * Addition of some new methods for reading multiple values at once. * Full suite of unit tests for reader / writer functionality. * Full set of doxygen comments for all classes. * Streams now store their own endianness. * Fixed some bugs in a few of the classes that were discovered by the unit tests. llvm-svn: 296215
* [PDB] Rename Stream related source files.Zachary Turner2017-02-253-11/+11
| | | | | | | | | | | | | | This is part of a larger effort to get the Stream code moved up to Support. I don't want to do it in one large patch, in part because the changes are so big that it will treat everything as file deletions and add, losing history in the process. Aside from that though, it's just a good idea in general to make small changes. So this change only changes the names of the Stream related source files, and applies necessary source fix ups. llvm-svn: 296211
* Fix unit tests after r296049.Adrian McCarthy2017-02-241-1/+1
| | | | llvm-svn: 296055
* Don't assume little endian in StreamReader / StreamWriter.Zachary Turner2017-02-181-6/+6
| | | | | | | In an effort to generalize this so it can be used by more than just PDB code, we shouldn't assume little endian. llvm-svn: 295525
* [pdb] Add the ability to resolve TypeServer PDBs.Zachary Turner2017-02-162-0/+176
| | | | | | | | | | | | | | Some PDBs or object files can contain references to other PDBs where the real type information lives. When this happens, all type indices in the original PDB are meaningless because their records are not there. With this patch we add the ability to pull type info from those secondary PDBs. Differential Revision: https://reviews.llvm.org/D29973 llvm-svn: 295382
* Fix for r293104, which renamed a directory.Adrian McCarthy2017-01-252-3/+3
| | | | llvm-svn: 293105
* [pdb] Write the Named Stream mapping to Yaml and binary.Zachary Turner2017-01-201-1/+1
| | | | | | Differential Revision: https://reviews.llvm.org/D28919 llvm-svn: 292665
* [PDB] Rename some files to be more intuitive.Zachary Turner2017-01-202-8/+8
| | | | llvm-svn: 292663
* [pdb] Add HashTable data structure.Zachary Turner2017-01-192-0/+168
| | | | | | | | | | | | | | | | This was being parsed / serialized ad-hoc inside the code for a specific PDB stream. But this data structure is used in multiple ways / places within the PDB format. To be able to re-use it we need to raise this code out and make it more generic. In doing so, a number of bugs are fixed in the original implementation, and support is added for growing the hash table and deleting items from the hash table, which had either been omitted or incorrect implemented in the initial version. Differential Revision: https://reviews.llvm.org/D28715 llvm-svn: 292535
* PDB: Add a class to create the /names stream contents.Rui Ueyama2017-01-152-0/+55
| | | | | | | | | | This patch adds a new class NameHashTableBuilder which creates /names streams. This patch contains a test to confirm that a stream created by NameHashTableBuilder can be read by NameHashTable reader class. Differential Revision: https://reviews.llvm.org/D28707 llvm-svn: 292040
* [PDB] Validate superblock addressesDavid Majnemer2016-12-181-0/+1
| | | | | | | - Validate the address of the block map. - Validate the address of the free block map. llvm-svn: 290053
* [pdb] Fix unit test compilation.Zachary Turner2016-09-142-15/+23
| | | | llvm-svn: 281560
* [msf] Resubmit "Rename Msf -> MSF".Zachary Turner2016-07-293-57/+57
| | | | | | | | | | | | | Previously this change was submitted from a Windows machine, so changes made to the case of filenames and directory names did not survive the commit, and as a result the CMake source file names and the on-disk file names did not match on case-sensitive file systems. I'm resubmitting this patch from a Linux system, which hopefully allows the case changes to make it through unfettered. llvm-svn: 277213
* Revert "[msf] Rename Msf to MSF."Zachary Turner2016-07-293-57/+57
| | | | | | This reverts commit 4d1557ffac41e079bcb1abbcf04f512474dcd6fe. llvm-svn: 277194
* [msf] Rename Msf to MSF.Zachary Turner2016-07-293-57/+57
| | | | | | | | In a previous patch, it was suggested to use all caps instead of rolling caps for initialisms, so this patch changes everything to do this. llvm-svn: 277190
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