Commit Graph

377 Commits

Author SHA1 Message Date
George Rimar 8c1b73591f [llvm-readobj/llvm-readelf] - Eliminate the elf-groups.x86_64 precompiled binary from the inputs.
We do not need the elf-groups.x86_64. In one of the tests, it was
used for no solid reason, and for the second test case we can use
YAML input with SHT_GROUP sections.

The patch performs a cleanup of one of the test cases, removes another
one completely (since during the review was found out it actually
duplicates one of the existent tests) and removes the precompiled binary.

Differential revision: https://reviews.llvm.org/D63647

llvm-svn: 364167
2019-06-24 08:29:54 +00:00
George Rimar 0a32c07cd7 [llvm-readobj] - Inline a few yaml inputs into test cases.
There are some test that are splitted into main part + input yaml for no visible reason.
This patch inines the yaml part for the 3 test cases I found.

Differential revision: https://reviews.llvm.org/D63644

llvm-svn: 364049
2019-06-21 14:07:35 +00:00
James Henderson 9485b265e8 [binutils] Add response file option to help and docs
Many LLVM-based tools already support response files (i.e. files
containing a list of options, specified with '@'). This change simply
updates the documentation and help text for some of these tools to
include it. I haven't attempted to fix all tools, just a selection that
I am interested in.

I've taken the opportunity to add some tests for --help behaviour, where
they were missing. We could expand these tests, but I don't think that's
within scope of this patch.

This fixes https://bugs.llvm.org/show_bug.cgi?id=42233 and
https://bugs.llvm.org/show_bug.cgi?id=42236.

Reviewed by: grimar, MaskRay, jkorous

Differential Revision: https://reviews.llvm.org/D63597

llvm-svn: 364036
2019-06-21 11:49:20 +00:00
Yuanfang Chen 40a156b791 [llvm-readobj] Match GNU output for DT_RPATH and DT_RUNPATH when dumping dynamic symbol table.
Reviewers: jhenderson, grimar, MaskRay, rupprecht, espindola

Subscribers: emaste, nemanjai, arichardson, kbarton, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63347

llvm-svn: 363868
2019-06-19 19:31:07 +00:00
Fangrui Song 677423997d [llvm-readobj] Allow --hex-dump/--string-dump to dump multiple sections
1) `-x foo` currently dumps one `foo`. This change makes it dump all `foo`.
2) `-x foo -x foo` currently dumps `foo` twice. This change makes it dump `foo` once.
   In addition, if foo has section index 9, `-x foo -x 9` dumps `foo` once.
3) Give a warning instead of an error if `foo` does not exist.

The new behaviors match GNU readelf.

Also, print a new line as a separator between two section dumps.
GNU readelf uses two lines, but one seems good enough.

Reviewed By: grimar, jhenderson

Differential Revision: https://reviews.llvm.org/D63475

llvm-svn: 363683
2019-06-18 14:01:03 +00:00
Fangrui Song ac14f7b10c [lit] Delete empty lines at the end of lit.local.cfg NFC
llvm-svn: 363538
2019-06-17 09:51:07 +00:00
George Rimar 0aecabae14 Revert "Revert r363377: [yaml2obj] - Allow setting custom section types for implicit sections."
LLD test case will be fixed in a following commit.

Original commit message:

[yaml2obj] - Allow setting custom section types for implicit sections.

We were hardcoding the final section type for sections that
are usually implicit. The patch fixes that.

This also fixes a few issues in existent test cases and removes
one precompiled object.

Differential revision: https://reviews.llvm.org/D63267

llvm-svn: 363401
2019-06-14 14:25:34 +00:00
Rui Ueyama 9f4e21c69a Revert r363377: [yaml2obj] - Allow setting custom section types for implicit sections.
This reverts commit r363377 because lld's ELF/invalid/undefined-local-symbol-in-dso.test
test started failing after this commit.

llvm-svn: 363394
2019-06-14 13:57:25 +00:00
George Rimar 3b523c0a2e [yaml2obj] - Allow setting custom section types for implicit sections.
We were hardcoding the final section type for sections that
are usually implicit. The patch fixes that.

This also fixes a few issues in existent test cases and removes
one precompiled object.

Differential revision: https://reviews.llvm.org/D63267

llvm-svn: 363377
2019-06-14 12:16:59 +00:00
James Henderson f7cfabb45d [llvm-readobj] Don't abort printing of dynamic table if string reference is invalid
If dynamic table is missing, output "dynamic strtab not found'. If the index is
out of range, output "Invalid Offset<..>".

https://bugs.llvm.org/show_bug.cgi?id=40807

Reviewed by: jhenderson, grimar, MaskRay

Differential Revision: https://reviews.llvm.org/D63084

Patch by Yuanfang Chen.

llvm-svn: 363374
2019-06-14 12:02:01 +00:00
George Rimar d6df7ded6e [llvm-readobj] - Do not fail to dump the object which has wrong type of .shstrtab.
Imagine we have object that has .shstrtab with type != SHT_STRTAB.
In this case, we fail to dump the object, though GNU readelf dumps it without
any issues and warnings.

This patch fixes that. It adds a code to ELFDumper.cpp which is based on the implementation of getSectionName from the ELF.h:

https://github.com/llvm-mirror/llvm/blob/master/include/llvm/Object/ELF.h#L608
https://github.com/llvm-mirror/llvm/blob/master/include/llvm/Object/ELF.h#L431
https://github.com/llvm-mirror/llvm/blob/master/include/llvm/Object/ELF.h#L539

The difference is that all non critical errors are ommitted what allows us to
improve the dumping on a tool side. Also, this opens a road for a follow-up that
should allow us to dump the section headers, but drop the section names in case if .shstrtab is completely absent and/or broken.

Differential revision: https://reviews.llvm.org/D63266

llvm-svn: 363371
2019-06-14 11:56:10 +00:00
Jordan Rupprecht 565f1e2298 [llvm-readobj] Fix output interleaving issue caused by using multiple streams at the same time.
Summary:
Use llvm::fouts() as the default stream for outputing. No new stream
should be constructed to output at the same time.

https://bugs.llvm.org/show_bug.cgi?id=42140

Reviewers: jhenderson, grimar, MaskRay, phosek, rupprecht

Reviewed By: rupprecht

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63115

Patch by Yuanfang Chen!

llvm-svn: 363198
2019-06-12 20:16:22 +00:00
George Rimar fc7b911313 [llvm-readobj] - Do not use precompiled binary in elf-broken-dynsym-link.test
Now we can remove the "TODO" since https://bugs.llvm.org/show_bug.cgi?id=42216
was fixed.

llvm-svn: 363045
2019-06-11 10:28:15 +00:00
George Rimar dd4f253c4d [llvm-readobj/llvm-readelf] - Don't fail to dump the object if .dynsym has broken sh_link field.
This is https://bugs.llvm.org/show_bug.cgi?id=42215.

GNU readelf allows to dump the objects in that case,
but llvm-readobj/llvm-readelf reports an error and stops.

The patch fixes that.

Differential revision: https://reviews.llvm.org/D63074

llvm-svn: 362938
2019-06-10 14:23:46 +00:00
George Rimar 5da702308c [llvm-readobj] - Remove TODOs from gnu-hash-symbols.test and demangle.test test cases.
We can remove this TODOs now.

Differential revision: https://reviews.llvm.org/D62846

llvm-svn: 362614
2019-06-05 15:29:50 +00:00
Fangrui Song f090e6f7b6 [llvm-objdump/llvm-readobj/obj2yaml/yaml2obj] Support DT_PPC_GOT and DT_PPC_OPT
In glibc, DT_PPC_GOT indicates that PowerPC32 Secure PLT ABI is used.
I plan to use it in D62464.

DT_PPC_OPT currently indicates if a TLSDESC inspired TLS optimization is
enabled.

Reviewed By: grimar, jhenderson, rupprecht

Differential Revision: https://reviews.llvm.org/D62851

llvm-svn: 362569
2019-06-05 01:36:48 +00:00
Peter Smith 49d7221f71 [AArch64][ELF][llvm-readobj] Add support for BTI and PAC dynamic tags
ELF for the 64-bit Arm Architecture defines two processor-specific dynamic
tags:
DT_AARCH64_BTI_PLT 0x70000001, d_val
DT_AARCH64_PAC_PLT 0x70000003, d_val

These presence of these tags indicate that PLT sequences have been
protected using Branch Target Identification and Pointer Authentication
respectively. The presence of both indicates that the PLT sequences have
been protected with both Branch Target Identification and Pointer
Authentication.

This patch adds the tags and tests for llvm-readobj and yaml2obj.

As some of the processor specific dynamic tags overlap, this patch splits
them up, keeping their original default value if they were not previously
mentioned explicitly in a switch case.

Differential Revision: https://reviews.llvm.org/D62596

llvm-svn: 362493
2019-06-04 11:44:33 +00:00
Peter Smith 580c6d31c0 [AARCH64][ELF][llvm-readobj] Support for AArch64 .note.gnu.property
ELF for the 64-bit Arm Architecture defines a processor specific property
type GNU_PROPERTY_AARCH64_FEATURE_1_AND as GNU_PROPERTY_LOPROC. This
property works in a similar way to the existing X86 processor specific
property GNU_PROPERTY_GNU_X86_FEATURE_1_AND.

Two feature bits are defined for GNU_PROPERTY_AARCH64_FEATURE_1_AND:
- GNU_PROPERTY_AARCH64_FEATURE_1_BTI 0x1
- GNU_PROPERTY_AARCH64_FEATURE_1_PAC 0x2

This patch defines the property, feature bits and implements support for
printing in llvm-readobj.

Differential Revision: https://reviews.llvm.org/D62595

llvm-svn: 362490
2019-06-04 11:28:22 +00:00
Owen Reynolds 5d5078e341 [llvm-ar] Reapply Fix relative thin archive path handling
Includes a fix for an introduced build failure due to a post c++11 use of std::mismatch. 

This fixes some thin archive relative path issues, paths are shortened where possible and paths are output correctly when using the display table command.

Differential Revision: https://reviews.llvm.org/D59491

llvm-svn: 362484
2019-06-04 10:13:03 +00:00
Dmitri Gribenko 857de979a7 Revert "[llvm-ar] Fix relative thin archive path handling"
This reverts commit r362407.  It broke compilation of
llvm/lib/Object/ArchiveWriter.cpp:

error: type 'llvm::sys::path::const_iterator' does not provide a call
operator

llvm-svn: 362413
2019-06-03 16:21:37 +00:00
Owen Reynolds fade9cbed7 [llvm-ar] Fix relative thin archive path handling
This fixes some thin archive relative path issues, paths are shortened where possible and paths are output correctly when using the display table command.

Differential Revision: https://reviews.llvm.org/D59491

llvm-svn: 362407
2019-06-03 15:26:07 +00:00
George Rimar ab93e6e0fe [llvm-readobj] - Convert gnu-sections.test to use YAML.
gnu-sections.test currently use relocs.obj.elf-x86_64 and
relocs.obj.elf-i386 precompiled objects as an inputs.

These inputs actually initially were introduced to test the
dump of relocations and have almost nothing common with dumping
sections.

Patch converts the test to use yaml2obj. That allows to remove
relocs.obj.elf-i386 binary.
(relocs.obj.elf-x86_64 is still used by another test and can't be removed atm).

Differential revision: https://reviews.llvm.org/D62659

llvm-svn: 362377
2019-06-03 09:58:41 +00:00
George Rimar 1115a199aa [llvm-readobj/llvm-readelf] - Remove gnu-relocations.test completely.
rL362089 introduced a set of yaml based reloc-types-*.test test cases
(instead of huge reloc-types.test that used a lot of precompiled binaries)
These test cases checks LLVM-styled dumping of the relocations.

gnu-relocations.test was a test case to check GNU styled relocations dumping.
It did that only for elf-x86 and elf-x86_64 targets. It did not test all of the
relocations though.

Now, after rL362089, it does not make sence to keep it.
This patch updates reloc-types-elf-i386.test and reloc-types-elf-x64.test tests
with llvm-readelf calls to check GNU styled output in one place.
It removes gnu-relocations.test completely.

One of intentions of doing this is also to get rid of relocs.obj.elf-i386 and
relocs.obj.elf-x86_64 precompiled objects completely (they are used in other tests still).

Differential revision: https://reviews.llvm.org/D62655

llvm-svn: 362374
2019-06-03 09:52:32 +00:00
George Rimar 60d88e0e90 [llvm-readobj] - Remove excessive `dynamic.test`
dynamic.test is a test that checks dumping of
dynamic tags. It uses precompiled objects as inputs
and it is completely excessive nowadays:

Now we have elf-dynamic-tags-machine-specific.test
and elf-dynamic-tags.test. 
(https://github.com/llvm-mirror/llvm/blob/master/test/tools/llvm-readobj/elf-dynamic-tags-machine-specific.test)
(https://github.com/llvm-mirror/llvm/blob/master/test/tools/llvm-readobj/elf-dynamic-tags.test)

First is used to check target specific tags and second tests the common flags.
These tests use YAML, which is much better than using precompiled binaries.

Note that new reviews tend to update the YAML based
tests to add new tags, e.g. see D62596.

With this patch it became possible to remove
dynamic-table-so.aarch64 binary from the inputs folder.
(other binaries are still used in other tests).

Differential revision: https://reviews.llvm.org/D62728

llvm-svn: 362224
2019-05-31 13:16:21 +00:00
George Rimar 31e6d8feea [llvm-readobj] - Rewrite reloc-types.test to use YAML. NFCI.
This change rewrites and splits reloc-types.test
to use yaml2obj instead of precompiled binaries.
That allowed to remove 7 precompiled objects from the inputs.

I took the existent objects, used obj2yaml on them, simplified the result and
used yaml2obj in the test case with the result.

Notes:
* I converted, but did not remove relocs.obj.elf-i386, relocs.obj.elf-x86_64 or relocs.obj.elf-mips objects
because found they are used in other tests. 
* I was unable to convert relocs.obj.elf-ppc64, because obj2yaml hangs on this file for me.
* I was unable to convert relocs.obj.macho-arm, relocs.obj.macho-i386 and relocs.obj.macho-x86_64
because the output produced by obj2yaml does not seem to be correct.
* Because of the above I did not remove the script for creating all
of those objects: test\tools\llvm-readobj\Inputs\relocs.py

Differential revision: https://reviews.llvm.org/D62594

llvm-svn: 362089
2019-05-30 12:39:05 +00:00
George Rimar c372f41c18 [llvm-readobj/llvm-readelf] - Implement GNU style dumper of the SHT_GNU_verdef section.
It was not implemented yet, we had only LLVM style dumper implemented.
Section description is here: https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/symversion.html

Differential revision: https://reviews.llvm.org/D62520

llvm-svn: 362082
2019-05-30 10:36:52 +00:00
George Rimar e3406c42a4 [llvm-readobj/llvm-readelf] - Implement GNU style dumper of the SHT_GNU_verneed section.
It was not implemented yet, we had only LLVM style dumper implemented.
Section description is here: https://refspecs.linuxfoundation.org/LSB_2.0.1/LSB-Core/LSB-Core/symverrqmts.html

Differential revision: https://reviews.llvm.org/D62516

llvm-svn: 362080
2019-05-30 10:14:41 +00:00
George Rimar 5b363c14d7 [llvm-readobj] - Repair the test case.
I forgot to change the test tag in r361932.
Now it is fixed.

llvm-svn: 361945
2019-05-29 11:01:07 +00:00
George Rimar 8ac7b2d07b [llvm-readelf] - Allow dumping of the .dynamic section even if there is no PT_DYNAMIC header.
It is now possible after D61937 was landed and was discussed
in it's review comments. It is not consistent with GNU, which
does not output .dynamic section content in this case for
no visible reason.

Differential revision: https://reviews.llvm.org/D62179

llvm-svn: 361943
2019-05-29 10:31:46 +00:00
George Rimar 65dde1e0db [llvm-readobj/llvm-readelf] - Simplify the elf-versioninfo.test test case.
This removes 2 precompiled objects from the test case and replaces
them with a single YAML. That allowed to simplify and clean up the test,
remove excessive checks.

Differential revision: https://reviews.llvm.org/D62529

llvm-svn: 361932
2019-05-29 08:28:47 +00:00
Fangrui Song ed6fa44f23 [llvm-readobj] -u: don't crash when dumping SHT_ARM_EXIDX if .symtab doesn't exist
Reviewed By: kongyi

Differential Revision: https://reviews.llvm.org/D62567

llvm-svn: 361929
2019-05-29 06:18:34 +00:00
Hans Wennborg 5b86163f62 Fix some llvm-readelf tests after r361633
They were failing on 32-bit Windows. In the cases where I've changed
test expectations, I've checked that they match the output of GNU
readelf.

llvm-svn: 361807
2019-05-28 11:24:20 +00:00
Simon Atanasyan 8362cbe13b [llvm-readobj] Implement GNU-style output for dynamic table
GNU readelf tool prints slightly different dynamic table "header" and
surrounds dynamic tag names by brackets. This patch implements the same
formatting for GNU-style output of the `llvm-readobj`.

LLVM
```
DynamicSection [ (13 entries)
  Tag        Type                 Name/Value
  0x00000006 SYMTAB               0x168
  ...
]
```

GNU
```
Dynamic section at offset 0x1d0 contains 13 entries:
  Tag        Type                 Name/Value
  0x00000006 (SYMTAB)             0x168
  ...
```

Differential Revision: https://reviews.llvm.org/D62256

llvm-svn: 361633
2019-05-24 12:22:53 +00:00
George Rimar 33bee053c3 Revert r361630 "[llvm-readelf] - Allow dumping of the .dynamic section even if there is no PT_DYNAMIC header."
It broke BB:
http://lab.llvm.org:8011/builders/ppc64le-lld-multistage-test/builds/3748

llvm-svn: 361631
2019-05-24 11:24:42 +00:00
George Rimar f835fcf412 [llvm-readelf] - Allow dumping of the .dynamic section even if there is no PT_DYNAMIC header.
It is now possible after D61937 was landed and was discussed
in it's review comments. It is not consistent with GNU, which
does not output .dynamic section content in this case for
no visible reason.

Differential revision: https://reviews.llvm.org/D62179

llvm-svn: 361630
2019-05-24 11:12:50 +00:00
Simon Atanasyan e4f01ec50c [llvm-readobj][mips] Align GOT columns headers properly in 64-bit case
llvm-svn: 361626
2019-05-24 10:26:48 +00:00
George Rimar 72f821d3de [llvm-readelf] - Rework how we parse the .dynamic section.
This is a result of what I found during my work on https://bugs.llvm.org/show_bug.cgi?id=41679.

Previously LLVM readelf took the information about .dynamic section
from its PT_DYNAMIC segment only. GNU tools have a bit different logic.
They also use the information from the .dynamic section header if it is available.
This patch changes the code to improve the compatibility with the GNU Binutils.

Differential revision: https://reviews.llvm.org/D61937

llvm-svn: 361165
2019-05-20 15:41:48 +00:00
Don Hinton f6eac2dd3b [CommandLine] Enable Grouping for short options by default. Part 4 of 5
Summary:
This change enables `cl::Grouping` for short options --
options with names of a single character.  This is consistent with GNU
getopt behavior.

Reviewers: rnk, MaskRay

Reviewed By: MaskRay

Subscribers: thopre, cfe-commits, MaskRay, rupprecht, hiraditya, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D61270

llvm-svn: 359917
2019-05-03 18:56:25 +00:00
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
Fangrui Song 6afcdcf9ab [llvm-readobj] Change -t to --symbols in tests. NFC
-t is --symbols in llvm-readobj but --section-details (unimplemented) in readelf.
The confusing option should not be used since we aim for improving
compatibility.

Keep just one llvm-readobj -t use case in test/tools/llvm-readobj/symbols.test

llvm-svn: 359661
2019-05-01 09:28:24 +00:00
Fangrui Song 26676c82e8 Fix test/tools/llvm-readobj/mips-plt.test
llvm-svn: 359657
2019-05-01 06:46:34 +00:00
Fangrui Song 97c17e83f8 [llvm-readobj] llvm-readobj --elf-output-style=GNU => llvm-readelf. NFC
The latter is much more common.

A dedicated --elf-output-style=GNU test demonstrating it is the same as
llvm-readelf is sufficient.

llvm-svn: 359652
2019-05-01 05:55:22 +00:00
Fangrui Song e29e30b139 [llvm-readobj] Change -long-option to --long-option in tests. NFC
We use both -long-option and --long-option in tests. Switch to --long-option for consistency.

In the "llvm-readelf" mode, -long-option is discouraged as it conflicts with grouped short options and it is not accepted by GNU readelf.

While updating the tests, change llvm-readobj -s to llvm-readobj -S to reduce confusion ("s" is --section-headers in llvm-readobj but --symbols in llvm-readelf).

llvm-svn: 359649
2019-05-01 05:27:20 +00:00
Dan Gohman 3b5b9d0e72 [WebAssembly] Support EXPLICIT_NAME symbols in llvm-readobj
Teach llvm-readobj about WASM_SYMBOL_EXPLICIT_NAME.

Differential Revision: https://reviews.llvm.org/D61323

Reviewer: sbc100
llvm-svn: 359602
2019-04-30 19:30:24 +00:00
Fangrui Song 763a2e1f36 [llvm-nm][llvm-readelf] Avoid single-dash -long-option in tests
llvm-svn: 359383
2019-04-27 16:12:14 +00:00
Nico Weber 23cb79ff93 llvm-cvtres: Make new dupe resource error a bit friendlier
For well-known type IDs, include the name of the type.

To not duplicate the ID->name map, make llvm-readobj call this new
function as well.  It has slightly different output, so this also
requires updating a few tests.

Differential Revision: https://reviews.llvm.org/D61086

llvm-svn: 359153
2019-04-24 23:26:30 +00:00
Eugene Leviant 4918738c07 [llvm-readelf] Correctly dump symbols whose section id is SHN_XINDEX
Differential revision: https://reviews.llvm.org/D60614

llvm-svn: 358396
2019-04-15 11:21:47 +00:00
Stephen Tozer 19bb1d5739 [llvm-readobj] Reapply: Improve error message for --string-dump
This is a resubmission of a previous patch that caused test failures,
with the fixes for the relevant tests included.

Fixes bug 40630: https://bugs.llvm.org/show_bug.cgi?id=40630

This patch changes the error message when the section specified by
--string-dump cannot be found by including the name of the section in
the error message and changing the prefix text to not imply that the
file itself was invalid. As part of this change some uses of
std::error_code have been replaced with the llvm Error class to better
encapsulate the error info (rather than passing File strings around),
and the WithColor class replaces string literal error prefixes.

llvm-svn: 358395
2019-04-15 11:17:48 +00:00
Xing GUO 8ab7414580 [llvm-readobj] Should declare `ListScope` for `verneed` entries.
Summary: YAML mappings require keys to be unique. See: https://yaml.org/spec/1.2/spec.html#id2764652

Reviewers: jhenderson, grimar, rupprecht, espindola, ruiu

Reviewed By: ruiu

Subscribers: ruiu, emaste, arichardson, MaskRay, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60438

llvm-svn: 358078
2019-04-10 12:47:21 +00:00
Stephen Tozer bbeca849d7 Revert "[llvm-readobj] Improve error message for --string-dump"
This reverts commit 681b0798db.

Reverted due to causing build failures: llvm-svn: 357772

llvm-svn: 357774
2019-04-05 16:32:25 +00:00