[llvm-readobj] Add JSONScopedPrinter to llvm-readelf

Adds JSONScopedPrinter to llvm-readelf. It includes an empty
JSONELFDumper class which will be used to override any LLVMELFDumper
methods which u

[llvm-readobj] Add JSONScopedPrinter to llvm-readelf

Adds JSONScopedPrinter to llvm-readelf. It includes an empty
JSONELFDumper class which will be used to override any LLVMELFDumper
methods which utilize startLine() which JSONScopedPrinter cannot
provide.

This introduces a change where calls to llvm-readelf with non-ELF object
files that specify --elf-output-style=GNU will now print file summary
information where it previously didn't.

Fixes previous Windows test failure which occured due to JSON escaping
of '\' by not relying on LIT substitution.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D114225

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Revert "[llvm-readobj] Add JSONScopedPrinter to llvm-readelf"

This reverts commit 824eef231a853d7054d55010c16654f6f20e0394.
file-summary-json.test and pretty-print.test fails on Windows.

[llvm-readobj] Add JSONScopedPrinter to llvm-readelf

Adds JSONScopedPrinter to llvm-readelf. It includes an empty
JSONELFDumper class which will be used to override any LLVMELFDumper
methods whic

[llvm-readobj] Add JSONScopedPrinter to llvm-readelf

Adds JSONScopedPrinter to llvm-readelf. It includes an empty
JSONELFDumper class which will be used to override any LLVMELFDumper
methods which utilize startLine() which JSONScopedPrinter cannot
provide.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D114225

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[NFC] Trim trailing whitespace in *.rst

[llvm-readelf][docs] Add missing options and details to the help output and the command guide

This change is to keep the help text and command guide of llvm-readelf
in tandem.

- In the help text m

[llvm-readelf][docs] Add missing options and details to the help output and the command guide

This change is to keep the help text and command guide of llvm-readelf
in tandem.

- In the help text mention that --section-data, --section-relocations,
--section-symbols and --stack-sizes have no effect on GNU style
output; give the accepted values for --elf-output-style and update
the description of --gnu-hash-table to use the command guide
description.
- In the command guide add the missing options -a,
--dependant-libraries,--no-demangle, --wide and -W. Also update the
description of --symbols so it matches the help text.

Differential Revision: https://reviews.llvm.org/D111240

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[docs] Update llvm-readelf supported options after D105532

[docs] Fix :option:`--file-header` reference in llvm-readelf.rst after D105532

[llvm-readobj] Switch command line parsing from llvm::cl to OptTable

Users should generally observe no difference as long as they don't use
unintended option forms. Behavior changes:

* `-t=d` is re

[llvm-readobj] Switch command line parsing from llvm::cl to OptTable

Users should generally observe no difference as long as they don't use
unintended option forms. Behavior changes:

* `-t=d` is removed. Use `-t d` instead.
* `--demangle=false` and `--demangle=0` cannot be used. Omit the option or use `--no-demangle`. Other flag-style options don't have `--no-` forms.
* `--help-list` is removed. This is a `cl::` specific option.
* llvm-readobj now supports grouped short options as well.
* `--color` is removed. This is generally not useful (only apply to errors/warnings) but was inherited from Support.

Some adjustment to the canonical forms
(usually from GNU readelf; currently llvm-readobj has too many redundant aliases):

* --dyn-syms is canonical. --dyn-symbols is a hidden alias
* --file-header is canonical. --file-headers is a hidden alias
* --histogram is canonical. --elf-hash-histogram is a hidden alias
* --relocs is canonical. --relocations is a hidden alias
* --section-groups is canonical. --elf-section-groups is a hidden alias

OptTable avoids global option collision if we decide to support multiplexing for binary utilities.

* Most one-dash long options are still supported. `-dt, -sd, -st, -sr` are dropped due to their conflict with grouped short options.
* `--section-mapping=false` (D57365) is strange but is kept for now.
* Many `cl::opt` variables were unnecessarily external. I added `static` whenever appropriate.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D105532

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[llvm-readelf] Support dumping the BB address map section with --bb-addr-map.

This patch lets llvm-readelf dump the content of the BB address map
section in the following format:
```
Function {
At

[llvm-readelf] Support dumping the BB address map section with --bb-addr-map.

This patch lets llvm-readelf dump the content of the BB address map
section in the following format:
```
Function {
At: <address>
BB entries [
{
Offset: <offset>
Size: <size>
Metadata: <metadata>
},
...
]
}
...
```

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D95511

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[llvm-readelf] - Implement --section-details option.

--section-details/-t is a GNU readelf option that produce
an output that is an alternative to --sections.

Differential revision: https://reviews

[llvm-readelf] - Implement --section-details option.

--section-details/-t is a GNU readelf option that produce
an output that is an alternative to --sections.

Differential revision: https://reviews.llvm.org/D89304

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[llvm-readobj] Print error when executed with no input files

This patch changes llvm-readelf (and llvm-readobj for consistency)
behavior to print an error when executed with no input files.

Reading

[llvm-readobj] Print error when executed with no input files

This patch changes llvm-readelf (and llvm-readobj for consistency)
behavior to print an error when executed with no input files.

Reading from stdin can be achieved via a '-' for the input
object.

Fixes https://bugs.llvm.org/show_bug.cgi?id=46400

Differential Revision: https://reviews.llvm.org/D83704

Reviewed by: jhenderson, MaskRay, sbc, jyknight

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[llvm-readobj] set --elf-cg-profile as alias of --cg-profile

Summary: Rename --elf-cg-profile to --cg-profile and keep --elf-cg-profile as an alias of --cg-profile.

Reviewers: jhenderson, MaskRay,

[llvm-readobj] set --elf-cg-profile as alias of --cg-profile

Summary: Rename --elf-cg-profile to --cg-profile and keep --elf-cg-profile as an alias of --cg-profile.

Reviewers: jhenderson, MaskRay, espindola, hans

Reviewed By: jhenderson, MaskRay

Subscribers: emaste, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81855

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[llvm-readobj/llvm-readelf] Delete --arm-attributes (alias for --arch-specific)

D68110 added --arch-specific (supported by GNU readelf) and made
--arm-attributes an alias for it. The tests were late

[llvm-readobj/llvm-readelf] Delete --arm-attributes (alias for --arch-specific)

D68110 added --arch-specific (supported by GNU readelf) and made
--arm-attributes an alias for it. The tests were later migrated to use
--arch-specific.

Note, llvm-readelf --arch-specific currently just uses llvm-readobj
style output for ARM attributes. The readelf-style output is not
implemented.

Reviewed By: compnerd, kongyi, rupprecht

Differential Revision: https://reviews.llvm.org/D68196

llvm-svn: 373291

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[docs] Make --version text more correct

Follow-up to r371983. Referring to "this program" in the description of
the --version option in the documentation isn't exactly correct, because
the docs are

[docs] Make --version text more correct

Follow-up to r371983. Referring to "this program" in the description of
the --version option in the documentation isn't exactly correct, because
the docs are not part of the program, and so "this program" doesn't
really refer to anything. This patch brings the other users of this
terminology into line with the new updates to llvm-size and
llvm-strings.

Reviewed by: alexshap, MaskRay

Differential Revision: https://reviews.llvm.org/D67618

llvm-svn: 372107

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[docs][llvm-readelf][llvm-readobj] Improve --stack-sizes documentation

llvm-readobj's document was missing --stack-sizes entirely from its
document, so this patch adds it. It also adds a note to the

[docs][llvm-readelf][llvm-readobj] Improve --stack-sizes documentation

llvm-readobj's document was missing --stack-sizes entirely from its
document, so this patch adds it. It also adds a note to the llvm-readelf
description that the switch is only implemented for GNU style output
currently. For reference, --stack-sizes was added in r367942.

Reviewed by: MaskRay

Differential Revision: https://reviews.llvm.org/D67548

llvm-svn: 371862

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[llvm-readelf] Support dumping of stack sizes sections with readelf --stack-sizes

Reviewers: jhenderson, grimar, rupprecht

Differential Revision: https://reviews.llvm.org/D65313

llvm-svn: 367942

[docs][llvm-readobj][llvm-readelf] Improve wording

llvm-svn: 365335

[docs][llvm-readobj] Add a note to options that do nothing in GNU output

--section-data, --section-relocations and --section-symbols have no
effect for GNU style ouput. This patch changes the docs t

[docs][llvm-readobj] Add a note to options that do nothing in GNU output

--section-data, --section-relocations and --section-symbols have no
effect for GNU style ouput. This patch changes the docs to point this
out, as it has caught me out on a couple of occasions.

See also https://bugs.llvm.org/show_bug.cgi?id=42522.

llvm-svn: 365221

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[docs][llvm-readelf] Expand llvm-readelf documentation

Previously, the llvm-readelf documentation was essentially just a list
of differences to llvm-readobj. Since llvm-readelf is the more likely
go

[docs][llvm-readelf] Expand llvm-readelf documentation

Previously, the llvm-readelf documentation was essentially just a list
of differences to llvm-readobj. Since llvm-readelf is the more likely
goto tool for many people migrating to the LLVM toolchain, it seems like
it would be helpful to document all the switches in the llvm-readelf
document too. This change expands the options listed accordingly.
Additionally, they are unlikely to care what the differences are to
llvm-readobj, since they won't be familiar with the latter as there is
no GNU equivalent, so this change moves the "differences" section to
llvm-readobj's documentation.

Reviewed by: peter.smith

Differential Revision: https://reviews.llvm.org/D63826

llvm-svn: 364800

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