Commit Graph

31 Commits

Author SHA1 Message Date
Georgii Rymar 3d90a61cf2 [llvm-readobj] - Remove Error.cpp,.h and drop dependencies in the code.
We have Error.cpp/.h which contains some code for working with error codes.
In fact we use Error/Expected<> almost everywhere already and we can get rid
of these files.

Note: a few places in the code used readobj specific error codes,
e.g. `return readobj_error::unknown_symbol`. But these codes are never really used,
i.e. the code checks the fact of a success/error call only.
So I've changes them to `return inconvertibleErrorCode()` for now.
It seems that these places probably should be converted to use `Error`/`Expected<>`.

Differential revision: https://reviews.llvm.org/D86772
2020-09-01 16:46:17 +03:00
Sean Fertile fd75ee9154 [Object][XCOFF] Add an XCOFF dumper for llvm-readobj.
Patch adds support for dumping of file headers with llvm-readobj. XCOFF
object files are added to test dumping a well formed file, and dumping
both negative timestamps and negative symbol counts, both of which are
allowed in the XCOFF definition.

Differential Revision: https://reviews.llvm.org/D60878

llvm-svn: 359878
2019-05-03 12:57:07 +00:00
Rui Ueyama 4fce28ca6e Add a missing dependency to fix build.
llvm-svn: 351458
2019-01-17 17:55:47 +00:00
Rafael Auler 86fb7bf2bc Reland "[DebugInfo] Support DWARF expressions in eh_frame"
Summary:
Original change was D43313 (r326932) and reverted by r326953 because it
broke an LLD test and a windows build. The LLD test was already fixed in
lld commit r326944 (thanks maskray). This is the original change with
the windows build fixed.

llvm-svn: 326970
2018-03-08 00:46:53 +00:00
Rui Ueyama 6aa8b3491f Revert r326932: [DebugInfo] Support DWARF expressions in eh_frame
This reverts commit rr326932 because it broke lld/test/ELF/eh-frame-hdr-augmentation.s.

llvm-svn: 326953
2018-03-07 22:29:48 +00:00
Rafael Auler 7fdf44440c [DebugInfo] Support DWARF expressions in eh_frame
This patch enhances DWARFDebugFrame with the capability of parsing and
printing DWARF expressions in CFI instructions. It also makes FDEs and
CIEs accessible to lib users, so they can process them in client tools
that rely on LLVM. To make it self-contained with a test case, it
teaches llvm-readobj to be able to dump EH frames and checks they are
correct in a unit test. The llvm-readobj code is Maksim Panchenko's work
(maksfb).

Reviewers: JDevlieghere, espindola

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D43313

llvm-svn: 326932
2018-03-07 19:19:51 +00:00
Shoaib Meenai 08bb38f7e7 [tools] Add option to install binutils symlinks
The LLVM tools can be used as a replacement for binutils, in which case
it's convenient to create symlinks with the binutils names. Add support
for these symlinks in the build system. As with any other llvm tool
symlinks, the user can limit the installed symlinks by only adding the
desired ones to `LLVM_TOOLCHAIN_TOOLS`.

Differential Revision: https://reviews.llvm.org/D39530

llvm-svn: 317272
2017-11-02 21:43:32 +00:00
Marek Sokolowski c2189b8311 [llvm-readobj] Teach readobj to dump .res files (WindowsResource).
This enables readobj to output Windows resource files (.res). This way,
we'll be able to test .res outputs without comparing them byte-by-byte
with "magic binary files" generated by MS toolchain.

Differential Revision: https://reviews.llvm.org/D38058

llvm-svn: 313790
2017-09-20 18:33:35 +00:00
Petr Hosek bf5155015c [llvm-readobj] Install llvm-readelf alias
Install an llvm-readelf symlink to llvm-readobj.
When invoked as *readelf*, default to -elf-output-style=GNU.

Patch by Roland McGrath

Differential Revision: https://reviews.llvm.org/D33869

llvm-svn: 308408
2017-07-19 02:09:37 +00:00
Zachary Turner 264b5d9e88 Move Object format code to lib/BinaryFormat.
This creates a new library called BinaryFormat that has all of
the headers from llvm/Support containing structure and layout
definitions for various types of binary formats like dwarf, coff,
elf, etc as well as the code for identifying a file from its
magic.

Differential Revision: https://reviews.llvm.org/D33843

llvm-svn: 304864
2017-06-07 03:48:56 +00:00
Zachary Turner 7b327d051b [pdb] Add the ability to resolve TypeServer PDBs.
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
2017-02-16 23:35:45 +00:00
Derek Schuff 6d76b7b455 [WebAssembly] Add wasm support for llvm-readobj
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
2017-01-30 23:30:52 +00:00
Sam Parker 34315eec58 [ARM] Moved ARMAttributeParser to Support
Moved ARMAttributeParser out of llvm-readobj and into the support
library.

Differential Revision: https://reviews.llvm.org/D28227

llvm-svn: 291896
2017-01-13 10:50:01 +00:00
Zachary Turner a3225b0451 [msf] Resubmit "Rename Msf -> MSF".
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
2016-07-29 20:56:36 +00:00
Zachary Turner 334aec4dd2 Revert "[msf] Rename Msf to MSF."
This reverts commit 4d1557ffac41e079bcb1abbcf04f512474dcd6fe.

llvm-svn: 277194
2016-07-29 18:38:47 +00:00
Zachary Turner a010f5cef0 [msf] Rename Msf to MSF.
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
2016-07-29 18:24:26 +00:00
Zachary Turner bac69d33d0 [msf] Create LLVMDebugInfoMsf
This provides a better layering of responsibilities among different
aspects of PDB writing code.  Some of the MSF related code was
contained in CodeView, and some was in PDB prior to this.  Further,
we were often saying PDB when we meant MSF, and the two are
actually independent of each other since in theory you can have
other types of data besides PDB data in an MSF.  So, this patch
separates the MSF specific code into its own library, with no
dependencies on anything else, and DebugInfoCodeView and
DebugInfoPDB take dependencies on DebugInfoMsf.

llvm-svn: 276458
2016-07-22 19:56:05 +00:00
Reid Kleckner 0b269748a6 [codeview] Add type stream merging prototype
Summary:
This code is intended to be used as part of LLD's PDB writing. Until
that exists, this is exposed via llvm-readobj for testing purposes.

Type stream merging uses the following algorithm:

- Begin with a new empty stream, and a new empty hash table that maps
  from type record contents to new type index.
- For each new type stream, maintain a map from source type index to
  destination type index.
- For each record, copy it and rewrite its type indices to be valid in
  the destination type stream.
- If the new type record is not already present in the destination
  stream hash table, append it to the destination type stream, assign it
  the next type index, and update the two hash tables.
- If the type record already exists in the destination stream, discard
  it and update the type index map to forward the source type index to
  the existing destination type index.

Reviewers: zturner, ruiu

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D20122

llvm-svn: 269521
2016-05-14 00:02:53 +00:00
Reid Kleckner 4a14bcac41 [codeview] Move dumper into lib/DebugInfo/CodeView
So that we can call it from llvm-pdbdump.

llvm-svn: 268580
2016-05-05 00:34:33 +00:00
Zachary Turner 88bb163f81 Move llvm-readobj/StreamWriter to Support.
We wish to re-use this from llvm-pdbdump, and it provides a nice
way to print structured data in scoped format that could prove
useful for many other dumping tools as well.  Moving to support
and changing name to ScopedPrinter to better reflect its purpose.

llvm-svn: 268342
2016-05-03 00:28:04 +00:00
Rui Ueyama 932108912d llvm-readobj: Dump more info for COFF import libraries.
This patch teaches llvm-readobj to print out COFF import file header fields.

llvm-svn: 246291
2015-08-28 10:27:50 +00:00
Rafael Espindola d8757a4b38 We don't need the targets to read objects.
llvm-svn: 240684
2015-06-25 20:20:19 +00:00
Saleem Abdulrasool e6971cab30 tools: initial implementation of WoA EH decoding
Add support to llvm-readobj to decode Windows ARM Exception Handling data.  This
uses the previously added datastructures to decode the information into a format
that can be used by tests.  This is a necessary step to add support for emitting
Windows on ARM exception handling information.

A fair amount of formatting inspiration is drawn from the Win64 EH printer as
well as the ARM EHABI printer.  This allows for a reasonably thorough look into
the encoded data.

llvm-svn: 210192
2014-06-04 15:47:15 +00:00
Saleem Abdulrasool e8839a755a tools: split out Win64EHDumper from COFFDumper
Move the implementation of the Win64 EH printer from the COFFDumper into its own
class.  This is in preparation for adding support to print ARM EH information.
The only real change here is in printUnwindInfo where we now lambda lift the
implicit this parameter for the resolveFunction.  Also setup the printing to
handle ARM.  This now has set the stage to introduce ARM EH printing.

llvm-svn: 209606
2014-05-25 20:26:45 +00:00
Saleem Abdulrasool 443264c51f build: sort llvm-readobj sources
Sort the source files.  NFC.

llvm-svn: 209587
2014-05-24 20:04:21 +00:00
Saleem Abdulrasool 15d16d809b tools: add support for decoding ARM attributes
Enhance the ARM specific parsing support in llvm-readobj to support attributes.
This allows for simpler tests to validate encoding of the build attributes as
specified in the ARM ELF specification.

llvm-svn: 200450
2014-01-30 04:46:33 +00:00
NAKAMURA Takumi b5c4b87690 [CMake] Update LLVM_LINK_COMPONENTS for each CMakeLists.txt.
llvm-svn: 196908
2013-12-10 11:13:32 +00:00
Rafael Espindola 28c2e33362 Don't link with the archive library programs that don't use it.
llvm-svn: 184081
2013-06-17 15:29:46 +00:00
Eric Christopher 9cad53cfec Implements low-level object file format specific output for COFF and
ELF with support for:

- File headers
- Section headers + data
- Relocations
- Symbols
- Unwind data (only COFF/Win64)

The output format follows a few rules:
- Values are almost always output one per line (as elf-dump/coff-dump already do). - Many values are translated to something readable (like enum names), with the raw value in parentheses.
- Hex numbers are output in uppercase, prefixed with "0x".
- Flags are sorted alphabetically.
- Lists and groups are always delimited.

Example output:
---------- snip ----------
Sections [
  Section {
    Index: 1
    Name: .text (5)
    Type: SHT_PROGBITS (0x1)
    Flags [ (0x6)
      SHF_ALLOC (0x2)
      SHF_EXECINSTR (0x4)
    ]
    Address: 0x0
    Offset: 0x40
    Size: 33
    Link: 0
    Info: 0
    AddressAlignment: 16
    EntrySize: 0
    Relocations [
      0x6 R_386_32 .rodata.str1.1 0x0
      0xB R_386_PC32 puts 0x0
      0x12 R_386_32 .rodata.str1.1 0x0
      0x17 R_386_PC32 puts 0x0
    ]
    SectionData (
      0000: 83EC04C7 04240000 0000E8FC FFFFFFC7  |.....$..........|
      0010: 04240600 0000E8FC FFFFFF31 C083C404  |.$.........1....|
      0020: C3                                   |.|
    )
  }
]
---------- snip ----------

Relocations and symbols can be output standalone or together with the section header as displayed in the example.
This feature set supports all tests in test/MC/COFF and test/MC/ELF (and I suspect all additional tests using elf-dump), making elf-dump and coff-dump deprecated.

Patch by Nico Rieck!

llvm-svn: 178679
2013-04-03 18:31:38 +00:00
Michael J. Spencer 6a8746b7e6 [llvm-readobj] Add ELF .dynamic table dumping.
llvm-svn: 175592
2013-02-20 02:37:12 +00:00
David Meyer 2fc34c5f84 [Object]
* Add begin_dynamic_table() / end_dynamic_table() private interface to ELFObjectFile.
* Add begin_libraries_needed() / end_libraries_needed() interface to ObjectFile, for grabbing the list of needed libraries for a shared object or dynamic executable.
* Implement this new interface completely for ELF, leave stubs for COFF and MachO.
* Add 'llvm-readobj' tool for dumping ObjectFile information.

llvm-svn: 151785
2012-03-01 01:36:50 +00:00