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* [DWARF] Shrink AttributeSpec from 24 to 16 bytes.Benjamin Kramer2017-09-211-11/+10
| | | | | | | This is a bit ugly because we can't put Optional into a union. Hide all of that behind a set of accessors and make accesses safer using asserts. llvm-svn: 313884
* llvm-dwarfdump: implement --recurse-depth=<N>Adrian Prantl2017-09-205-21/+24
| | | | | | | | | | This patch implements the Darwin dwarfdump option --recurse-depth=<N>, which limits the recursion depth when selectively printing DIEs at an offset. Differential Revision: https://reviews.llvm.org/D38064 llvm-svn: 313778
* dwarfdump/symbolizer: Avoid loading unneeded CUs from a DWPDavid Blaikie2017-09-193-9/+11
| | | | | | | | When symbolizing large binaries, parsing every CU in a DWP file is a significant performance penalty. Instead, use the index to only load the CUs that are needed. llvm-svn: 313659
* dwarfdump: Delay parsing abbreviations until they're neededDavid Blaikie2017-09-192-10/+33
| | | | | | | | | | | This speeds up dumping specific DIEs by not parsing abbreviations for units that are not used. (this is also handy to have in eventually to speed up llvm-symbolizer for .dwp files, where parsing most of the DWP file can be avoided by using the index) llvm-svn: 313635
* llvm-dwarfdump: use more efficient API (NFC)Adrian Prantl2017-09-181-4/+4
| | | | llvm-svn: 313573
* Fix indentation.Adrian Prantl2017-09-181-1/+1
| | | | llvm-svn: 313568
* llvm-dwarfdump: add a --show-parents options when selectively dumping DIEs.Adrian Prantl2017-09-181-1/+16
| | | | llvm-svn: 313567
* llvm-dwarfdump: Sink the handling of ShowChildren into DWARFDie::dump(). NFC.Adrian Prantl2017-09-182-4/+3
| | | | llvm-svn: 313560
* [dwarfdump] Make .eh_frame an alias for .debug_frameJonas Devlieghere2017-09-182-11/+16
| | | | | | | | | | | | | | | | | | | | This patch makes the `.eh_frame` extension an alias for `.debug_frame`. Up till now it was only possible to dump the section using objdump, but not with dwarfdump. Since the two are essentially interchangeable, we dump whichever of the two is present. As a workaround, this patch also adds parsing for 3 currently unimplemented CFA instructions: `DW_CFA_def_cfa_expression`, `DW_CFA_expression`, and `DW_CFA_val_expression`. Because I lack the required knowledge, I just parse the fields without actually creating the instructions. Finally, this also fixes the typo in the `.debug_frame` section name which incorrectly contained a trailing `s`. Differential revision: https://reviews.llvm.org/D37852 llvm-svn: 313530
* llvm-dwarfdump: support a --show-children optionAdrian Prantl2017-09-161-2/+4
| | | | | | | This will print all children of a DIE when selectively printing only one DIE at a given offset. llvm-svn: 313464
* llvm-dwarfdump: Add support for -debug-types=<offset>.Adrian Prantl2017-09-161-12/+15
| | | | llvm-svn: 313463
* llvm-dwarfdump: Add support for -debug-info=<offset>.Adrian Prantl2017-09-151-45/+53
| | | | | | | | | This is the first of many commits that enable selectively dumping just one record from the debug info. This reapplies r313412 with some extra qualification to appease GCC and MSVC. llvm-svn: 313419
* Revert "llvm-dwarfdump: Add support for -debug-info=<offset>."Adrian Prantl2017-09-151-53/+45
| | | | | | This reverts commit r313412 because of a g++ incompatibility. llvm-svn: 313413
* llvm-dwarfdump: Add support for -debug-info=<offset>.Adrian Prantl2017-09-151-45/+53
| | | | | | | This is the first of many commits that enable selectively dumping just one record from the debug info. llvm-svn: 313412
* llvm-dwarfdump: Factor out the printing of the section header (NFC)Adrian Prantl2017-09-152-65/+68
| | | | llvm-svn: 313370
* [test] Fix TestDWARFDieRangeInfoIntersectsJonas Devlieghere2017-09-141-0/+2
| | | | | | Fixes heap buffer overflow triggered in DWARF verifier, detected by ASAN. llvm-svn: 313280
* llvm-dwarfdump: support dumping static archives.Adrian Prantl2017-09-141-3/+0
| | | | llvm-svn: 313272
* [dwarfdump] Add DWARF verifiers for address rangesJonas Devlieghere2017-09-141-4/+135
| | | | | | | | | | | | | | | | This patch started as an attempt to rebase Greg's differential (D32821). The result is both quite similar and different at the same time. It adds the following checks: - Verify that all address ranges in a DIE are valid. - Verify that no ranges within the DIE overlap. - Verify that no ranges overlap with the ranges of a sibling. - Verify that children are completely contained in its (direct) parent's address range. (unless both are subprograms) Differential revision: https://reviews.llvm.org/D37696 llvm-svn: 313255
* Revert "[dwarfdump] Add DWARF verifiers for address ranges"Jonas Devlieghere2017-09-141-135/+4
| | | | | | This reverts commit r313250. llvm-svn: 313253
* [dwarfdump] Add DWARF verifiers for address rangesJonas Devlieghere2017-09-141-4/+135
| | | | | | | | | | | | | | | | This patch started as an attempt to rebase Greg's differential (D32821). The result is both quite similar and different at the same time. It adds the following checks: - Verify that all address ranges in a DIE are valid. - Verify that no ranges within the DIE overlap. - Verify that no ranges overlap with the ranges of a sibling. - Verify that children are completely contained in its (direct) parent's address range. (unless both are subprograms) Differential revision: https://reviews.llvm.org/D37696 llvm-svn: 313250
* llvm-dwarfdump: automatically dump both regular and .dwo variant of sectionsAdrian Prantl2017-09-131-74/+91
| | | | | | | | | | | | Since users typically don't really care about the .dwo / non.dwo distinction, this patch makes it so dwarfdump --debug-<info,...> dumps .debug_info and (if available) also .debug_info.dwo. This simplifies the command line interface (I've removed all dwo-specific dump options) and makes the tool friendlier to use. Differential Revision: https://reviews.llvm.org/D37771 llvm-svn: 313207
* llvm-dwarfdump: support dumping UUIDs of Mach-O binaries.Adrian Prantl2017-09-131-0/+28
| | | | | | | This is a feature supported by Darwin dwarfdump. UUIDs are used to associate executables with their .dSYM bundles. llvm-svn: 313165
* [dwarfdump] Rename Brief to Verbose in DIDumpOptionsJonas Devlieghere2017-09-135-28/+29
| | | | | | | | | | | This patches renames "brief" to "verbose" in de DIDumpOptions and inverts the logic to match the new behavior where brief is the default. Changing the default value uncovered some bugs related to the DIDumpOptions not being propagated and have been fixed as well. Differential revision: https://reviews.llvm.org/D37745 llvm-svn: 313139
* llvm-dwarfdump: Replace -debug-dump=sect option with individual options.Adrian Prantl2017-09-111-33/+33
| | | | | | | | | | | | | | | | | | | | | | As discussed on llvm-dev in http://lists.llvm.org/pipermail/llvm-dev/2017-September/117301.html this changes the command line interface of llvm-dwarfdump to match the one used by the dwarfdump utility shipping on macOS. In addition to being shorter to type this format also has the advantage of allowing more than one section to be specified at the same time. In a nutshell, with this change $ llvm-dwarfdump --debug-dump=info $ llvm-dwarfdump --debug-dump=apple-objc becomes $ dwarfdump --debug-info --apple-objc Differential Revision: https://reviews.llvm.org/D37714 llvm-svn: 312970
* [dwarfdump] Verify line table prologueJonas Devlieghere2017-09-081-0/+41
| | | | | | | | | | This patch adds prologue verification, which is already present in Apple's dwarfdump. It checks for invalid directory indices and warns about duplicate file paths. Differential revision: https://reviews.llvm.org/D37511 llvm-svn: 312782
* COFF: PDB: Allow multiple modules with the same name.Peter Collingbourne2017-09-071-18/+3
| | | | | | | | | | It is possible for two modules to have the same name if they are archive members with the same name, or if we are doing LTO (in which case all modules will have the name "lto.tmp"). Differential Revision: https://reviews.llvm.org/D37589 llvm-svn: 312744
* Remove dead code. NFCI.Peter Collingbourne2017-09-071-8/+0
| | | | llvm-svn: 312740
* [DebugInfo] - Fix for lld DWARF parsing of base address selection entries in ↵George Rimar2017-09-043-10/+26
| | | | | | | | | | | | | range lists. It solves issue of wrong section index evaluating for ranges when base address is used. Based on David Blaikie's patch D36097. Differential revision: https://reviews.llvm.org/D37214 llvm-svn: 312477
* [llvm-pdbutil] Support dumping CodeView from object files.Zachary Turner2017-09-013-5/+52
| | | | | | | | | | | | | | | | | | | | | | | | We have llvm-readobj for dumping CodeView from object files, and llvm-pdbutil has always been more focused on PDB. However, llvm-pdbutil has a lot of useful options for summarizing debug information in aggregate and presenting high level statistical views. Furthermore, it's arguably better as a testing tool since we don't have to write tests to conform to a state-machine like structure where you match multiple lines in succession, each depending on a previous match. llvm-pdbutil dumps much more concisely, so it's possible to use single-line matches in many cases where as with readobj tests you have to use multi-line matches with an implicit state machine. Because of this, I'm adding object file support to llvm-pdbutil. In fact, this mirrors the cvdump tool from Microsoft, which also supports both object files and pdb files. In the future we could perhaps rename this tool llvm-cvutil. In the meantime, this allows us to deep dive into object files the same way we already can with PDB files. llvm-svn: 312358
* [llvm-pdbutil] Print detailed S_UDT stats.Zachary Turner2017-08-311-1/+5
| | | | | | | | | | | | | | This adds a new command line option, -udt-stats, which breaks down the stats of S_UDT records. These are one of the biggest contributors to the size of /DEBUG:FASTLINK PDBs, so they need some additional tools to be able to analyze their usage. This option will dig into each S_UDT record and determine what kind of record it points to, and then break down the statistics by the target type. The goal here is to identify how our object files differ from MSVC object files in S_UDT records, so that we can output fewer of them and reach size parity. llvm-svn: 312276
* [dwarfdump] Pretty print location expressions and location listsReid Kleckner2017-08-296-81/+482
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Based on Fred's patch here: https://reviews.llvm.org/D6771 I can't seem to commandeer the old review, so I'm creating a new one. With that change the locations exrpessions are pretty printed inline in the DIE tree. The output looks like this for debug_loc entries: DW_AT_location [DW_FORM_data4] (0x00000000 0x0000000000000001 - 0x000000000000000b: DW_OP_consts +3 0x000000000000000b - 0x0000000000000012: DW_OP_consts +7 0x0000000000000012 - 0x000000000000001b: DW_OP_reg0 RAX, DW_OP_piece 0x4 0x000000000000001b - 0x0000000000000024: DW_OP_breg5 RDI+0) And like this for debug_loc.dwo entries: DW_AT_location [DW_FORM_sec_offset] (0x00000000 Addr idx 2 (w/ length 190): DW_OP_consts +0, DW_OP_stack_value Addr idx 3 (w/ length 23): DW_OP_reg0 RAX, DW_OP_piece 0x4) Simple locations without ranges are printed inline: DW_AT_location [DW_FORM_block1] (DW_OP_reg4 RSI, DW_OP_piece 0x4, DW_OP_bit_piece 0x20 0x0) The debug_loc(.dwo) dumping in changed accordingly to factor the code. Reviewers: dblaikie, aprantl, friss Subscribers: mgorny, javed.absar, hiraditya, llvm-commits, JDevlieghere Differential Revision: https://reviews.llvm.org/D37123 llvm-svn: 312042
* Revert "[llvm-dwarfdump] Print type names in DW_AT_type DIEs"Jonas Devlieghere2017-08-221-2/+1
| | | | | | This reverts commit r311492. llvm-svn: 311499
* [llvm-dwarfdump] Print type names in DW_AT_type DIEsJonas Devlieghere2017-08-221-1/+2
| | | | | | | This patch adds printing for DW_AT_type DIEs like it's currently already the case for DW_AT_specification DIEs. llvm-svn: 311492
* [PDB] Serialize records into a stack-allocated buffer.Zachary Turner2017-08-211-2/+1
| | | | | | | | | | | | We were using a std::vector<> and resizing to MaxRecordLength, which is ~64KB. We would then do this repeatedly often many times in a tight loop, which was causing measurable performance impact when linking PDBs. Patch by Alex Telishev Differential Revision: https://reviews.llvm.org/D36940 llvm-svn: 311375
* [lld/pdb] Speed up construction of publics & globals addr map.Zachary Turner2017-08-211-19/+21
| | | | | | | | | | | | | computeAddrMap function calls std::stable_sort with a comparison function that computes deserialized symbols every time its called. In the result deserializeAs<PublicSym32> is called 20-30 times per symbol. It's much faster to calculate it beforehand and pass a pointer to it to the comparison function. Patch by Alex Telishev Differential Revision: https://reviews.llvm.org/D36941 llvm-svn: 311373
* [llvm-pdbutil] Add support for dumping detailed module stats.Zachary Turner2017-08-211-0/+12
| | | | | | | | | | | | | | | This adds support for dumping a summary of module symbols and CodeView debug chunks. This option prints a table for each module of all of the symbols that occurred in the module and the number of times it occurred and total byte size. Then at the end it prints the totals for the entire file. Additionally, this patch adds the -jmc (just my code) option, which suppresses modules which are from external libraries or linker imports, so that you can focus only on the object files and libraries that originate from your own source code. llvm-svn: 311338
* Move helper classes into anonymous namespaces.Benjamin Kramer2017-08-202-2/+2
| | | | | | No functionality change intended. llvm-svn: 311288
* [llvm-dwarfdump] Hide .debug_str and DIE reference offsets in brief modeJonas Devlieghere2017-08-182-12/+13
| | | | | | | | | This patch hides the .debug_str offset and DIE reference offsets into the CU when llvm-dwarfdump is invoked with -brief. Differential Revision: https://reviews.llvm.org/D36835 llvm-svn: 311201
* Remove unused variable.Zachary Turner2017-08-171-1/+0
| | | | llvm-svn: 311119
* [llvm-pdbutil] Fix some dumping issues.Zachary Turner2017-08-171-1/+3
| | | | | | | | | | | | | | | | | When dumping, we were treating the S_INLINESITESYM as referring to a type record, when it actually refers to an id record. We had this correct in TypeIndexDiscovery, so our merging algorithm should be fine, but we had it wrong in the dumper, which means it would appear to work most of the time, unless the index was out of bounds in the type stream, when it would fail. Fixed this, and audited a few other cases to make them match the behavior in TypeIndexDiscovery. Also, I've now observed a new symbol record with kind 0x1168 which I have no clue what it is, so to avoid crashing we have to just print "Unknown Symbol Kind". llvm-svn: 311117
* Add a convenience overload of DWARFDie::dump() for debugging purposes.Adrian Prantl2017-08-161-0/+2
| | | | llvm-svn: 311026
* [llvm-dwarfdump] - Attemp to fix BB after r310915.George Rimar2017-08-151-1/+1
| | | | | | | Now MIPS one is unhappy: http://lab.llvm.org:8011/builders/llvm-mips-linux/builds/2221 llvm-svn: 310928
* [llvm-dwarfdump] - Refactor section name/uniqueness gathering.George Rimar2017-08-152-18/+20
| | | | | | | | | | | As was requested in D36313 thread, with this patch section names and uniqueness calculated once, and not every time when a range is dumped. Differential revision: https://reviews.llvm.org/D36740 llvm-svn: 310923
* [llvm-dwarfdump] - Print section name and index when dumping .debug_info rangesGeorge Rimar2017-08-153-19/+53
| | | | | | | | | Teaches llvm-dwarfdump to print section index and name of range when it dumps .debug_info. Differential revision: https://reviews.llvm.org/D36313 llvm-svn: 310915
* [LLD/PDB] Write actual records to the globals stream.Zachary Turner2017-08-115-15/+111
| | | | | | | | | | | | | | | | Previously we were writing an empty globals stream. Windows tools interpret this as "private symbols are not present in this PDB", even when they are, so we need to fix this. Regardless, without it we don't have information about global variables, so we need to fix it anyway. This patch does that. With this patch, the "lm" command in WinDbg correctly reports that we have private symbols available, but the "dv" command still refuses to display local variables. Differential Revision: https://reviews.llvm.org/D36535 llvm-svn: 310743
* [PDB] Fix an issue writing the publics stream.Zachary Turner2017-08-092-17/+11
| | | | | | | | | | | | | In the refactor to merge the publics and globals stream, a bug was introduced that wrote the wrong value for one of the fields of the PublicsStreamHeader. This caused debugging in WinDbg to break. We had no way of dumping any of these fields, so in addition to fixing the bug I've added dumping support for them along with a test that verifies the correct value is written. llvm-svn: 310439
* [PDB] Merge Global and Publics Builders.Zachary Turner2017-08-096-343/+326
| | | | | | | | | | | | | | | | | | | | | The publics stream and globals stream are very similar. They both contain a list of hash buckets that refer into a single shared stream, the symbol record stream. Because of the need for each builder to manage both an independent hash stream as well as a single shared record stream, making the two builders be independent entities is not the right design. This patch merges them into a single class, of which only a single instance is needed to create all 3 streams. PublicsStreamBuilder and GlobalsStreamBuilder are now merged into the single GSIStreamBuilder class, which writes all 3 streams at once. Note that this patch does not contain any functionality change. So we're still not yet writing any records to the globals stream. All we're doing is making it so that when we do start writing records to the globals, this refactor won't have to be part of that patch. Differential Revision: https://reviews.llvm.org/D36489 llvm-svn: 310438
* [PDB] Fix linking of function symbols and local variables.Zachary Turner2017-08-081-8/+39
| | | | | | | | | | | | | | | | | | | | | | | | The compiler outputs PROC32_ID symbols into the object files for functions, and these symbols have an embedded type index which, when copied to the PDB, refer to the IPI stream. However, the symbols themselves are also converted into regular symbols (e.g. S_GPROC32_ID -> S_GPROC32), and type indices in the regular symbol records refer to the TPI stream. So this patch applies two fixes to function records. 1. It converts ID symbols to the proper non-ID record type. 2. After remapping the type index from the object file's index space to the PDB file/IPI stream's index space, it then remaps that index to the TPI stream's index space by. Besides functions, during the remapping process we were also discarding symbol record types which we did not recognize. In particular, we were discarding S_BPREL32 records, which is what MSVC uses to describe local variables on the stack. So this patch fixes that as well by copying them to the PDB. Differential Revision: https://reviews.llvm.org/D36426 llvm-svn: 310394
* [DebugInfo][DWARF] Address paulr's comment on rL310253.Simon Dardis2017-08-071-1/+1
| | | | llvm-svn: 310267
* [DebugInfo][DWARF] Correct some usages of PRIx32 to PRIx64Simon Dardis2017-08-071-4/+4
| | | | | | | | | | | These lead to tests failing spuriously as the values after being rendered to a string were incorrect. Reviewers: clayborg Differential Revision: https://reviews.llvm.org/D36319 llvm-svn: 310262
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