Commit Graph

346 Commits

Author SHA1 Message Date
George Rimar c1090da852 [llvm-objdump] - An attempt to fix BB after r337361.
Seems r337361 is the reason of the following ARM BB failures:
http://lab.llvm.org:8011/builders/clang-cmake-armv8-quick
http://lab.llvm.org:8011/builders/clang-cmake-armv8-full/builds/4633

Reason is unclear to me, other bots are OK.
If this will not help, I'll revert r337361.

llvm-svn: 337371
2018-07-18 09:25:36 +00:00
George Rimar e35e6448f9 [llvm-objdump] - Stop reporting bogus section IDs.
Imagine we have a file with few sections, and one of them is .foo
with index N != 0.

Problem is that when llvm-objdump is given a -section=.foo parameter
it lists .foo as a section at index 0. That makes impossible to write
test cases which needs to find the index of the particular section,
while ignoring dumping of others.

The patch fixes that.

Differential revision: https://reviews.llvm.org/D49372

llvm-svn: 337361
2018-07-18 08:34:35 +00:00
Paul Semel 0f9ca2d960 Revert "[llvm-objdump] Add -demangle (-C) option"
This reverts commit 3a44ccd156e0edd2e89226f8ed63928e227900bb.
This reverts commit d5cfc836bb5552e20507d3612d13ff66ff9e36a0.

llvm-svn: 336829
2018-07-11 18:09:52 +00:00
Paul Semel bcf55ab95a [llvm-objdump] Add -demangle (-C) option
Differential Revision: https://reviews.llvm.org/D49043

llvm-svn: 336816
2018-07-11 15:25:39 +00:00
Paul Semel 0dc92f6a74 [llvm-objdump] Add --archive-headers (-a) option
llvm-svn: 336357
2018-07-05 14:43:29 +00:00
Paul Semel d2af4d6f1b [llvm-objdump] Add --file-headers (-f) option
llvm-svn: 336284
2018-07-04 15:25:03 +00:00
Sterling Augustine bc78b62169 Handle absolute symbols as branch targets in disassembly.
https://reviews.llvm.org/D48554

llvm-svn: 335903
2018-06-28 18:57:13 +00:00
Fangrui Song 8513cd4c0e [llvm-objdump] Add -x --all-headers options
Reviewers: paulsemel, echristo

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D48622

llvm-svn: 335785
2018-06-27 20:45:11 +00:00
Paul Semel cb0f043cec [llvm-objdump] Add -R option
This option prints dynamic relocation entries of the given file

Differential Revision: https://reviews.llvm.org/D47493

llvm-svn: 334196
2018-06-07 13:30:55 +00:00
Daniel Cederman d72b9fd141 Implemented sane default for llvm-objdump's relocation Value format
Summary:
"Unknown" for platforms that were not manually added into the switch
did not make sense at all. Now it prints Target + addend for all
elf-machines that were not explicitly mentioned.

Addresses PR21059 and PR25124.

Original author: fedor.sergeev

Reviewers: jyknight, espindola, fedor.sergeev

Reviewed By: jyknight

Subscribers: eraman, dcederman, jfb, dschuff, aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D36464

llvm-svn: 333726
2018-06-01 05:31:58 +00:00
Sid Manning d9f2873511 Hexagon: Put relocations after instructions not packets.
Change relocation output so that relocation information follows
individual instructions rather than clustering them at the end
of packets.

This change required shifting block of code but the actual change
is in HexagonPrettyPrinter's PrintInst.

Differential Revision: https://reviews.llvm.org/D46728

llvm-svn: 332283
2018-05-14 19:46:08 +00:00
Adrian Prantl 4dfcc4a788 Remove @brief commands from doxygen comments, too.
This is a follow-up to r331272.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by
  for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done

https://reviews.llvm.org/D46290

llvm-svn: 331275
2018-05-01 16:10:38 +00:00
Sam Clegg 8c4b0ce2b1 [WebAssembly] objdump: Don't assume all relocations have symbols
Subscribers: jfb, dschuff, jgravelle-google, aheejin, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D46134

llvm-svn: 330959
2018-04-26 17:05:04 +00:00
Sam Clegg f676cdd515 [WebAssembly] Implement getRelocationValueString()
And use it in llvm-objdump.

Differential Revision: https://reviews.llvm.org/D46092

llvm-svn: 330957
2018-04-26 16:41:51 +00:00
Francis Visoiu Mistrih 1834682b97 [llvm-objdump] Print "..." instead of random data for virtual sections
When disassembling with -D, skip virtual sections by printing "..." for
each symbol.

This patch also implements `MachOObjectFile::isSectionVirtual`.

Test case comes from:

```
.zerofill __DATA,__common,_data64unsigned,472,3
```

Differential Revision: https://reviews.llvm.org/D45824

llvm-svn: 330342
2018-04-19 17:02:57 +00:00
Rui Ueyama 197194b6c9 Define InitLLVM to do common initialization all at once.
We have a few functions that virtually all command wants to run on
process startup/shutdown. This patch adds InitLLVM class to do that
all at once, so that we don't need to copy-n-paste boilerplate code
to each llvm command's main() function.

Differential Revision: https://reviews.llvm.org/D45602

llvm-svn: 330046
2018-04-13 18:26:06 +00:00
Mandeep Singh Grang 8db564e033 [tools] Change std::sort to llvm::sort in response to r327219
Summary:
r327219 added wrappers to std::sort which randomly shuffle the container before sorting.
This will help in uncovering non-determinism caused due to undefined sorting
order of objects having the same key.

To make use of that infrastructure we need to invoke llvm::sort instead of std::sort.

Note: This patch is one of a series of patches to replace *all* std::sort to llvm::sort.
Refer the comments section in D44363 for a list of all the required patches.

Reviewers: JDevlieghere, zturner, echristo, dberris, friss

Reviewed By: echristo

Subscribers: gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D45141

llvm-svn: 328943
2018-04-01 21:24:53 +00:00
Tim Corringham 7116e8963d [AMDGPU] Improve disassembler error handling
Summary:
llvm-objdump now disassembles unrecognised opcodes as data, using
the .long directive. We treat unrecognised opcodes as being 32 bit
values, so move along 4 bytes rather than the single byte which
previously resulted in a cascade of bogus disassembly following an
unrecognised opcode.

While no solution can always disassemble code that contains
embedded data correctly this provides a significant improvement.

The disassembler will now cope with an arbitrary length section
as it no longer truncates it to a multiple of 4 bytes, and will
use the .byte directive for trailing bytes.

Subscribers: arsenm, kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D44685

llvm-svn: 328553
2018-03-26 17:06:33 +00:00
Rafael Auler b0e4b91660 [llvm-objdump] Support disassembling by symbol name
Summary:
Add a new option -df to llvm-objdump that takes function names
as arguments and instructs the disassembler to only dump those function
contents. Based on code originally written by Bill Nell.

Reviewers: espindola, JDevlieghere

Differential Revision: https://reviews.llvm.org/D44224

llvm-svn: 327164
2018-03-09 19:13:44 +00:00
Scott Linder 16c7bdaf32 [DebugInfo] Support DWARF v5 source code embedding extension
In DWARF v5 the Line Number Program Header is extensible, allowing values with
new content types. In this extension a content type is added,
DW_LNCT_LLVM_source, which contains the embedded source code of the file.

Add new optional attribute for !DIFile IR metadata called source which contains
source text. Use this to output the source to the DWARF line table of code
objects. Analogously extend METADATA_FILE in Bitcode and .file directive in ASM
to support optional source.

Teach llvm-dwarfdump and llvm-objdump about the new values. Update the output
format of llvm-dwarfdump to make room for the new attribute on file_names
entries, and support embedded sources for the -source option in llvm-objdump.

Differential Revision: https://reviews.llvm.org/D42765

llvm-svn: 325970
2018-02-23 23:01:06 +00:00
Alex Denisov a07169e3cb Fix typo
llvm-svn: 324123
2018-02-02 19:20:37 +00:00
Benjamin Kramer 3a13ed60ba Avoid int to string conversion in Twine or raw_ostream contexts.
Some output changes from uppercase hex to lowercase hex, no other functionality change intended.

llvm-svn: 321526
2017-12-28 16:58:54 +00:00
Dimitry Andric e4f5d01033 Fix more inconsistent line endings. NFC.
llvm-svn: 321016
2017-12-18 19:46:56 +00:00
Kevin Enderby 3fc9188fa8 Fix a crash in llvm-objdump when printing a bad x86_64 relocation in a Mach-O
file with a bad section number.

rdar://35207539

llvm-svn: 317373
2017-11-03 21:32:44 +00:00
Aaron Ballman ecf0e95267 Add llvm::for_each as a range-based extensions to <algorithm> and make use of it in some cases where it is a more clear alternative to std::for_each.
llvm-svn: 317356
2017-11-03 20:01:25 +00:00
Vlad Tsyrklevich de62046d68 Allow public Triple deduction from ObjectFiles.
Move logic that allows for Triple deduction from an ObjectFile object
out of llvm-objdump.cpp into a public factory, found in the ObjectFile
class.

This should allow other tools in the future to use this logic without
reimplementation.

Patch by Mitch Phillips

Differential Revision: https://reviews.llvm.org/D37719

llvm-svn: 313605
2017-09-19 02:22:48 +00:00
Jonas Devlieghere c0a758d8ab [dwarfdump] Make .eh_frame an alias for .debug_frame
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
2017-09-18 14:15:57 +00:00
Vlad Tsyrklevich f162013e6e Remove unneccessary string copies from method invocations.
Summary:
Change string parameter 'File' to be passed by const-reference to
reduce copies.

Patch by Mitch Phillips

Reviewers: vlad.tsyrklevich

Reviewed By: vlad.tsyrklevich

Subscribers: Eugene.Zelenko, llvm-commits

Differential Revision: https://reviews.llvm.org/D37652

llvm-svn: 312994
2017-09-12 02:27:39 +00:00
Adrian Prantl 7bc1b28291 llvm-dwarfdump: Replace -debug-dump=sect option with individual options.
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
2017-09-11 22:59:45 +00:00
Simon Dardis 3886705689 [llvm-objdump] Use PRIx64 for output of ARM64_RELOC_ADDEND
llvm-svn: 310250
2017-08-07 12:29:38 +00:00
Rafael Espindola 9f92995781 Don't pass the code model to MC
I was surprised to see the code model being passed to MC. After all,
it assembles code, it doesn't create it.

The one place it is used is in the expansion of .cfi directives to
handle .eh_frame being more that 2gb away from the code.

As far as I can tell, gnu assembler doesn't even have an option to
enable this. Compiling a c file with gcc -mcmodel=large produces a
regular looking .eh_frame. This is probably because in practice linker
parse and recreate .eh_frames.

In llvm this is used because the JIT can place the code and .eh_frame
very far apart. Ideally we would fix the jit and delete this
option. This is hard.

Apart from confusion another problem with the current interface is
that most callers pass CodeModel::Default, which is bad since MC has
no way to map it to the target default if it actually needed to.

This patch then replaces the argument with a boolean with a default
value. The vast majority of users don't ever need to look at it. In
fact, only CodeGen and llvm-mc use it and llvm-mc just to enable more
testing.

llvm-svn: 309884
2017-08-02 20:32:26 +00:00
Rafael Espindola c398e67fed Use delegation instead of inheritance.
This changes DwarfContext to delegate to DwarfObject instead of having
pure virtual methods.

With this DwarfContextInMemory is replaced with an implementation of
DwarfObject that is local to a .cpp file.

llvm-svn: 308543
2017-07-19 22:27:28 +00:00
Martin Storsjo 8c0317da02 [llvm-objdump] Properly print MachO aarch64 addend relocations
Previously such relocations fell into the last case for local
symbols, using the relocation addend as symbol index, leading to
a crash.

Differential Revision: https://reviews.llvm.org/D35239

llvm-svn: 307927
2017-07-13 17:03:02 +00:00
Martin Storsjo fa5183b028 [llvm-objdump] Correctly distinguish between the MachO upper/lower16 relocations
All other code in MachODump.cpp uses the same comparison,
((r_length & 0x1) == 1), for distinguishing between the two,
while the code in llvm-objdump.cpp seemed to be incorrect.

Differential Revision: https://reviews.llvm.org/D35240

llvm-svn: 307882
2017-07-13 05:54:08 +00:00
Sam Clegg 4df5d76477 [WebAssembly] Add support for printing relocations with llvm-objdump
Differential Revision: https://reviews.llvm.org/D34658

llvm-svn: 306461
2017-06-27 20:40:53 +00:00
Adrian Prantl f4bc1f77b7 [DWARF] Introduce Dump Options
This commit introduces a structure that holds all the flags that
control the pretty printing of dwarf output.

Patch by Spyridoula Gravani!

Differential Revision: https://reviews.llvm.org/D33749

llvm-svn: 304446
2017-06-01 18:18:23 +00:00
Petr Hosek 86611a078f [llvm-objdump] Don't attempt to print lines beyond the end of file
This may trigger a segfault in llvm-objdump when the line number stored
in debug infromation points beyond the end of file; lines in LineBuffer
are stored in std::vector which is allocated in chunks, so even if the
debug info points beyond the end of the file, this doesn't necessarily
trigger the segfault unless the line number points beyond the allocated
space.

Differential Revision: https://reviews.llvm.org/D32466

llvm-svn: 301347
2017-04-25 18:56:33 +00:00
Kevin Enderby a8d256cb36 Add the rest of the error checking for Mach-O dyld compact bind entry errors
and test cases for each of the error checks.

To do this more plumbing was needed so that the segment indexes and
segment offsets can be checked.  Basically what was done was the SegInfo
from llvm-objdump’s MachODump.cpp was moved into libObject for Mach-O
objects as BindRebaseSegInfo and it is only created when an iterator for
bind or rebase entries are created.

This commit really only adds the error checking and test cases for the
bind table entires and the checking for the lazy bind and weak bind entries
are still to be fully done as well as the rebase entires.  Though some of
the plumbing for those are added with this commit.  Those other error
checks and test cases will be added in follow on commits.

Note, the two llvm_unreachable() calls should now actually be unreachable
with the error checks in place and would take a logic bug in the error
checking code to be reached if the segment indexes and segment
offsets are used from a checked bind entry.  Comments have been added
to the methods that require the arguments to have been checked
prior to calling.

llvm-svn: 298292
2017-03-20 19:46:55 +00:00
Konstantin Zhuravlyov f895b2019b llvm-objdump: handle line numbers and source options for amdgpu objects
Differential Revision: https://reviews.llvm.org/D30679

llvm-svn: 297193
2017-03-07 20:17:11 +00:00
Saleem Abdulrasool dea14b2902 llvm-objdump: make NoLeadingAddr work on more than just MachO
Support printing the disassembly without the address on all formats
rather than making it MachO specific.

Patch by Jeff Muizelaar!

llvm-svn: 294495
2017-02-08 18:11:31 +00:00
Sam Parker 5fba45ad11 Use dynamic symbols for ELF disassembly
Disassembly currently begins from addresses obtained from the objects
symbol table. For ELF, add the dynamic symbols to the list if no
static symbols are available so that we can more successfully
disassemble stripped binaries.

Differential Revision: https://reviews.llvm.org/D29632

llvm-svn: 294430
2017-02-08 09:44:18 +00:00
Sam Parker df7c6ef96f [ARM] Create objdump subtarget from build attrs
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
2017-01-18 13:52:12 +00:00
Ivan Krasin 1ed7896c1b Revert r291903 and r291898. Reason: they break check-lld on the bots.
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
2017-01-13 16:45:15 +00:00
Sam Parker 770ceb69ba [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.

Differential Revision: https://reviews.llvm.org/D28281

llvm-svn: 291898
2017-01-13 11:04:21 +00:00
Alexei Starovoitov 3b9efca8e8 [bpf] change llvm-objdump to print dec instead of hex
since bpf instruction stream is multiple of 8 change llvm-objdump
to print decimal instruction number instead of hex address, so that
users don't have to do this math manually to match kernel verifier output

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
llvm-svn: 289569
2016-12-13 19:07:08 +00:00
Derek Schuff 2c6f75ddc5 [WebAssembly] Add llvm-objdump support for wasm file format
This is the first part of an effort to add wasm binary
support across all llvm tools.

Patch by Sam Clegg

Differential Revision: https://reviews.llvm.org/D26172

llvm-svn: 288251
2016-11-30 16:49:11 +00:00
Kevin Enderby 7fa40c9f2b General clean up of error handling in llvm-objdump to remove its use of report_fatal_error().
No real functional change with this commit.

The problem with report_fatal_error() is it does not include the tool name
and the file name the for which the error message was generated.

Uses of report_fatal_error() were change to report_error() or error()
to get a better error and to make the code smaller and cleaner.

Also changed things like error(errorToErrorCode(SOrErr.takeError())) to
use report_error() with a file name and the llvm::Error (as well as the
ArchitectureName if available) so the error message is printed.

llvm-svn: 287163
2016-11-16 22:17:38 +00:00
Davide Italiano 6cf09265f9 [ELF] Convert ELF.h to Expected<T>.
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
2016-11-16 05:10:28 +00:00
Mehdi Amini 41af43092c Make the Error class constructor protected
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
2016-11-11 04:28:40 +00:00
Alex Bradbury 1524f62b97 [RISCV] Add RISC-V ELF defines
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
2016-11-01 16:59:37 +00:00