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* Revert r296215, "[PDB] General improvements to Stream library." and followings.NAKAMURA Takumi2017-02-251-17/+18
| | | | | | | | | | | | | | | | | 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
* [PDB] General improvements to Stream library.Zachary Turner2017-02-251-18/+17
| | | | | | | | | | | | | | | 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 Turner2017-02-251-1/+1
| | | | | | | | | | | | | | 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
* Don't assume little endian in StreamReader / StreamWriter.Zachary Turner2017-02-181-3/+3
| | | | | | | 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 Turner2017-02-163-2/+4
| | | | | | | | | | | | | | 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
* llvm-readobj: process FreeBSD core notesSaleem Abdulrasool2017-02-121-0/+30
| | | | | | | core files on FreeBSD have additional notes to capture state. Process those notes when dumping the notes. llvm-svn: 294909
* llvm-readobj: fix next note entry calculation and print unknown note typesKonstantin Zhuravlyov2017-02-021-1/+3
| | | | | | Differential Revision: https://reviews.llvm.org/D29131 llvm-svn: 293964
* Re-submit r293820: Return Error instead of bool from mergeTypeStreams().Rui Ueyama2017-02-021-1/+3
| | | | llvm-svn: 293847
* Fix llvm-readobj build error after r293569Vedant Kumar2017-01-301-1/+1
| | | | | | | Clang complains about an ambiguous call to printNumber() because it can't work out what size_t should convert to. I picked uint64_t. llvm-svn: 293573
* [WebAssembly] Add wasm support for llvm-readobjDerek Schuff2017-01-304-0/+99
| | | | | | | | | | | Create a WasmDumper subclass of ObjDumper to support Webassembly binary files. Patch by Sam Clegg Differential Revision: https://reviews.llvm.org/D27355 llvm-svn: 293569
* [AMDGPU] Bump up n_type for metadata v2Konstantin Zhuravlyov2017-01-251-1/+1
| | | | | | Differential Revision: https://reviews.llvm.org/D29115 llvm-svn: 293083
* Add LC_BUILD_VERSION load commandSteven Wu2017-01-231-1/+19
| | | | | | | | | | | | | | | | | | | Summary: Add a new load command LC_BUILD_VERSION. It is a generic version of LC_*_VERSION_MIN load_command used on Apple platforms. Instead of having a seperate load command for each platform, LC_BUILD_VERSION is recording platform info as an enum. It also records SDK version, min_os, and tools that used to build the binary. rdar://problem/29781291 Reviewers: enderby Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D29044 llvm-svn: 292824
* [ARM] Create objdump subtarget from build attrsSam Parker2017-01-181-1/+1
| | | | | | | | | | | Enable an ELFObjectFile to read the its arm build attributes to produce a target triple with a specific ARM architecture. llvm-objdump now uses this functionality to automatically produce a more accurate target. Differential Revision: https://reviews.llvm.org/D28769 llvm-svn: 292366
* Revert r291903 and r291898. Reason: they break check-lld on the bots.Ivan Krasin2017-01-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Summary: Revert [ARM] Fix ubig32_t read in ARMAttributeParser Now using support functions to read data instead of trying to perform casts. =========================================================== Revert [ARM] Enable objdump to construct triple for ARM Now that The ARMAttributeParser has been moved into the library, it has been modified so that it can parse the attributes without printing them and stores them in a map. ELFObjectFile now queries the attributes to fill out the architecture details of a provided triple for 'arm' and 'thumb' targets. llvm-objdump uses this new functionality. Subscribers: llvm-commits, samparker, aemerson, mgorny Differential Revision: https://reviews.llvm.org/D28683 llvm-svn: 291911
* [ARM] Enable objdump to construct triple for ARMSam Parker2017-01-131-1/+1
| | | | | | | | | | | | | Now that The ARMAttributeParser has been moved into the library, it has been modified so that it can parse the attributes without printing them and stores them in a map. ELFObjectFile now queries the attributes to fill out the architecture details of a provided triple for 'arm' and 'thumb' targets. llvm-objdump uses this new functionality. Differential Revision: https://reviews.llvm.org/D28281 llvm-svn: 291898
* [ARM] Moved ARMAttributeParser to SupportSam Parker2017-01-134-810/+1
| | | | | | | | | Moved ARMAttributeParser out of llvm-readobj and into the support library. Differential Revision: https://reviews.llvm.org/D28227 llvm-svn: 291896
* [CodeView] Finish decoupling TypeDatabase from TypeDumper.Zachary Turner2017-01-111-8/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously the type dumper itself was passed around to a lot of different places and manipulated in ways that were more appropriate on the type database. For example, the entire TypeDumper was passed into the symbol dumper, when all the symbol dumper wanted to do was lookup the name of a TypeIndex so it could print it. That's what the TypeDatabase is for -- mapping type indices to names. Another example is how if the user runs llvm-pdbdump with the option to dump symbols but not types, we still have to visit all types so that we can print minimal information about the type of a symbol, but just without dumping full symbol records. The way we did this before is by hacking it up so that we run everything through the type dumper with a null printer, so that the output goes to /dev/null. But really, we don't need to dump anything, all we want to do is build the type database. Since TypeDatabaseVisitor now exists independently of TypeDumper, we can do this. We just build a custom visitor callback pipeline that includes a database visitor but not a dumper. All the hackery around printers etc goes away. After this patch, we could probably even delete the entire CVTypeDumper class since really all it is at this point is a thin wrapper that hides the details of how to build a useful visitation pipeline. It's not a priority though, so CVTypeDumper remains for now. After this patch we will be able to easily plug in a different style of type dumper by only implementing the proper visitation methods to dump one-line output and then sticking it on the pipeline. Differential Revision: https://reviews.llvm.org/D28524 llvm-svn: 291724
* [CodeView/PDB] Rename a bunch of files.Zachary Turner2017-01-111-1/+1
| | | | | | | | | | | We were starting to get some name clashes between llvm-pdbdump and the common CodeView framework, so I took this opportunity to rename a bunch of files to more accurately describe their usage. This also helps in llvm-pdbdump to distinguish between different files and whether they are used for pretty dump mode or raw dump mode. llvm-svn: 291627
* llvm-readobj: ELF: Make DT tags machine awareHemant Kulkarni2016-12-271-13/+24
| | | | llvm-svn: 290623
* llvm-readobj: remove leading dash in '-a' option (ARMAttributesShort)Mehdi Amini2016-12-231-1/+1
| | | | | | cl::opt does not accept such option llvm-svn: 290465
* [ARM] Implement execute-only support in CodeGenPrakhar Bahuguna2016-12-151-0/+8
| | | | | | | | | | | | | | | | | | | | This implements execute-only support for ARM code generation, which prevents the compiler from generating data accesses to code sections. The following changes are involved: * Add the CodeGen option "-arm-execute-only" to the ARM code generator. * Add the clang flag "-mexecute-only" as well as the GCC-compatible alias "-mpure-code" to enable this option. * When enabled, literal pools are replaced with MOVW/MOVT instructions, with VMOV used in addition for floating-point literals. As the MOVT instruction is required, execute-only support is only available in Thumb mode for targets supporting ARMv8-M baseline or Thumb2. * Jump tables are placed in data sections when in execute-only mode. * The execute-only text section is assigned section ID 0, and is marked as unreadable with the SHF_ARM_PURECODE flag with symbol 'y'. This also overrides selection of ELF sections for globals. llvm-svn: 289784
* Attempt to fix llvm-readobj crash on ppc64 due to r289674Yaxun Liu2016-12-151-1/+1
| | | | llvm-svn: 289777
* AMDGPU: Emit runtime metadata version 2 as YAMLYaxun Liu2016-12-143-0/+42
| | | | | | Differential Revision: https://reviews.llvm.org/D25046 llvm-svn: 289674
* [llvm-readobj] - Teach readobj to print PT_OPENBSD_BOOTDATA headerGeorge Rimar2016-12-061-0/+1
| | | | | | | | | | | | | These are OpenBSD specific program headers. OpenBSD commit: https://github.com/openbsd/src/commit/d39116912b9536bd77326260dc5c6e593fd4ee24 It is required for fixing PR31288. Differential revision: https://reviews.llvm.org/D27456 llvm-svn: 288831
* llvm-readobj: Use hash tables to print dynamic symbols.Hemant Kulkarni2016-11-231-1/+108
| | | | | | | -symbols prints both .symtab and .dynsym symbols for GNU style in ELF. -dyn-symbols prints symbols looking up through hash tables. This helps validate hash tables. llvm-svn: 287786
* [ELF] Convert ELF.h to Expected<T>.Davide Italiano2016-11-161-12/+13
| | | | | | | | | | | | This has two advantages: 1) We slowly move away from ErrorOr to the new handling interface, in the hope of having an uniform error handling in LLVM, eventually. 2) We're starting to have *meaningful* error messages for invalid object ELF files, rather than a generic "parse error". At some point we should include also the offset to improve the quality of the diagnostic. llvm-svn: 287081
* Make the Error class constructor protectedMehdi Amini2016-11-111-1/+1
| | | | | | | | | This is forcing to use Error::success(), which is in a wide majority of cases a lot more readable. Differential Revision: https://reviews.llvm.org/D26481 llvm-svn: 286561
* [CodeView] Hook up CodeViewRecordIO to type serialization path.Zachary Turner2016-11-083-16/+14
| | | | | | | | | | | | Previously support had been added for using CodeViewRecordIO to read (deserialize) CodeView type records. This patch adds support for writing those same records. With this patch, reading and writing of CodeView type records finally uses a single codepath. Differential Revision: https://reviews.llvm.org/D26253 llvm-svn: 286304
* Remove the last use of report_fatal_error from ELF.h.Rafael Espindola2016-11-032-7/+7
| | | | llvm-svn: 285955
* Add error handling to getEntry.Rafael Espindola2016-11-032-9/+13
| | | | | | Issue found by inspection. llvm-svn: 285951
* Replace a report_fatal_error with an ErrorOr.Rafael Espindola2016-11-031-5/+5
| | | | llvm-svn: 285942
* Delete some dead code and add a missing "0x" prefix to a hex string inChandler Carruth2016-11-031-2/+1
| | | | | | | | | | | llvm-readobj. Another bug caught by PVS-Studio. It'd be nice to actually have a test for this, but I found it by inspection from PVS-Studio. llvm-svn: 285937
* Move a free function out of ELFFile.Rafael Espindola2016-11-031-8/+8
| | | | llvm-svn: 285920
* replace a report_fatal_error with a ErrorOr.Rafael Espindola2016-11-031-4/+4
| | | | llvm-svn: 285910
* Replace a report_fatal_error with an ErrorOr.Rafael Espindola2016-11-032-4/+5
| | | | llvm-svn: 285905
* Avoid a report_fatal_error in sections().Rafael Espindola2016-11-022-15/+15
| | | | | | | Have it return a ErrorOr<Range> and delete section_begin and section_end. llvm-svn: 285807
* [RISCV] Add RISC-V ELF definesAlex Bradbury2016-11-011-0/+1
| | | | | | | | | | Add the necessary definitions for RISC-V ELF files, including relocs. Also make necessary trivial change to ELFYaml, llvm-objdump, and llvm-readobj in order to work with RISC-V ELFs. Differential Revision: https://reviews.llvm.org/D23557 llvm-svn: 285708
* [CodeView] Refactor serialization to use StreamInterface.Zachary Turner2016-10-201-18/+29
| | | | | | | | | | | | | | | | | | | This was all using ArrayRef<>s before which presents a problem when you want to serialize to or deserialize from an actual PDB stream. An ArrayRef<> is really just a special case of what can be handled with StreamInterface though (e.g. by using a ByteStream), so changing this to use StreamInterface allows us to plug in a PDB stream and get all the record serialization and deserialization for free on a MappedBlockStream. Subsequent patches will try to remove TypeTableBuilder and TypeRecordBuilder in favor of class that operate on Streams as well, which should allow us to completely merge the reading and writing codepaths for both types and symbols. Differential Revision: https://reviews.llvm.org/D25831 llvm-svn: 284762
* Remove LLVM_NOEXCEPT and replace it with noexceptReid Kleckner2016-10-191-2/+2
| | | | | | | Now that we have dropped MSVC 2013, all supported compilers support noexcept and we can drop this portability macro. llvm-svn: 284672
* [llvm-readobj] - Teach readobj to print ↵George Rimar2016-10-181-0/+4
| | | | | | | | | | | | | | | | | | | | PT_OPENBSD_RANDOMIZE/PT_OPENBSD_WXNEEDED headers. These are OpenBSD specific program headers and currently we support them in LLD. Description of headers (just in case) available here: http://man.openbsd.org/OpenBSD-current/man5/elf.5 OpenBSD commits were: For PT_OPENBSD_RANDOMIZE: https://github.com/openbsd/src/commit/c494713c450d98da3f2e1451ee8c7fb675a7c461 For PT_OPENBSD_WXNEEDED: https://github.com/openbsd/src/commit/2a5a8fc7e30928c2cff57cfe5fb491c90d8478ad Differential revision: https://reviews.llvm.org/D25616 llvm-svn: 284471
* Turn cl::values() (for enum) from a vararg function to using C++ variadic ↵Mehdi Amini2016-10-081-1/+1
| | | | | | | | | | | | | | | template The core of the change is supposed to be NFC, however it also fixes what I believe was an undefined behavior when calling: va_start(ValueArgs, Desc); with Desc being a StringRef. Differential Revision: https://reviews.llvm.org/D25342 llvm-svn: 283671
* Refactor Symbol visitor code.Zachary Turner2016-10-071-2/+3
| | | | | | | | | | | | | Type visitor code had already been refactored previously to decouple the visitor and the visitor callback interface. This was necessary for having the flexibility to visit in different ways (for example, dumping to yaml, reading from yaml, dumping to ScopedPrinter, etc). This patch merely implements the same visitation pattern for symbol records that has already been implemented for type records. llvm-svn: 283609
* Refactor to use getSectionContentsAsArray.Rafael Espindola2016-10-061-1/+1
| | | | | | This centralizes quite a bit of error checking. llvm-svn: 283454
* Refactor duplicated typedefs. NFC.Rafael Espindola2016-10-061-29/+9
| | | | llvm-svn: 283453
* Use range loop. NFC.Rafael Espindola2016-10-061-8/+8
| | | | llvm-svn: 283447
* [Stackmap] Added callsite counts to emitted function information.Sanjoy Das2016-09-144-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: It was previously not possible for tools to use solely the stackmap information emitted to reconstruct the return addresses of callsites in the map, which is necessary to use the information to walk a stack. This patch adds per-function callsite counts when emitting the stackmap section in order to resolve the problem. Note that this slightly alters the stackmap format, so external tools parsing these maps will need to be updated. **Problem Details:** Records only store their offset from the beginning of the function they belong to. While these records and the functions are output in program order, it is not possible to determine where the end of one function's records are without the callsite count when processing the records to compute return addresses. Patch by Kavon Farvardin! Reviewers: atrick, ributzka, sanjoy Subscribers: nemanjai Differential Revision: https://reviews.llvm.org/D23487 llvm-svn: 281532
* [pdb] Write PDB TPI Stream from Yaml.Zachary Turner2016-09-091-3/+10
| | | | | | | | | | This writes the full sequence of type records described in Yaml to the TPI stream of the PDB file. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D24316 llvm-svn: 281063
* [llvm-readobj] - Teach readobj to print DT_AUXILIARY dynamic tag in human ↵George Rimar2016-09-021-0/+4
| | | | | | | | | | readable form. Previously DT_AUXILIARY was unknown, patch fixes that. Differential revision: https://reviews.llvm.org/D24138 llvm-svn: 280471
* Fix the MSVC 2013 build by using Elf_Word instead of making a local typedefReid Kleckner2016-08-311-6/+4
| | | | llvm-svn: 280304
* llvm-readobj: speculative fix for MSVCSaleem Abdulrasool2016-08-301-1/+1
| | | | | | Use the typedef rather than using to type alias the typename. llvm-svn: 280158
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