[llvm-objdump] Implement -Mreg-names-raw/-std options.

The --disassembler-options, or -M, are used to customize
the disassembler and affect its output.

The two implemented options allow selecting r

[llvm-objdump] Implement -Mreg-names-raw/-std options.

The --disassembler-options, or -M, are used to customize
the disassembler and affect its output.

The two implemented options allow selecting register names on ARM:
* With -Mreg-names-raw, the disassembler uses rNN for all registers.
* With -Mreg-names-std it prints sp, lr and pc for r13, r14 and r15,
which is the default behavior of llvm-objdump.

Differential Revision: https://reviews.llvm.org/D57680

llvm-svn: 354870

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[llvm-objdump] Add `Version References` dumper

Summary: Add symbol version dumper for [#30241](https://bugs.llvm.org/show_bug.cgi?id=30241)

Reviewers: jhenderson, MaskRay, kristina, emaste, grimar

[llvm-objdump] Add `Version References` dumper

Summary: Add symbol version dumper for [#30241](https://bugs.llvm.org/show_bug.cgi?id=30241)

Reviewers: jhenderson, MaskRay, kristina, emaste, grimar

Reviewed By: jhenderson, grimar

Subscribers: grimar, rupprecht, jakehehrlich, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D54697

llvm-svn: 354782

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Revert "Revert "[llvm-objdump] Allow short options without arguments to be grouped""

- Tests that use multiple short switches now test them grouped and ungrouped.

- Ensure the output of ungroup

Revert "Revert "[llvm-objdump] Allow short options without arguments to be grouped""

- Tests that use multiple short switches now test them grouped and ungrouped.

- Ensure the output of ungrouped and grouped variants is identical

Differential Revision: https://reviews.llvm.org/D57904

llvm-svn: 354375

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[yaml2obj] - Do not skip zeroes blocks if there are relocations against them.

This is for -D -reloc combination.

With this patch, we do not skip the zero bytes that have a relocation against
them w

[yaml2obj] - Do not skip zeroes blocks if there are relocations against them.

This is for -D -reloc combination.

With this patch, we do not skip the zero bytes that have a relocation against
them when -reloc is used. If -reloc is not used, then the behavior will be the same.

Differential revision: https://reviews.llvm.org/D58174

llvm-svn: 354319

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Revert "[llvm-objdump] Allow short options without arguments to be grouped"

Reverted due to failures on the llvm-hexagon-elf.

This reverts commit 77e1f27476c89f65eeb496d131065177e6417f23.

llvm-svn

Revert "[llvm-objdump] Allow short options without arguments to be grouped"

Reverted due to failures on the llvm-hexagon-elf.

This reverts commit 77e1f27476c89f65eeb496d131065177e6417f23.

llvm-svn: 354002

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[llvm-objdump] Allow short options without arguments to be grouped

Summary:

https://bugs.llvm.org/show_bug.cgi?id=31679

Reviewers: kristina, jhenderson, grimar, jakehehrlich, rupprecht

Subscriber

[llvm-objdump] Allow short options without arguments to be grouped

Summary:

https://bugs.llvm.org/show_bug.cgi?id=31679

Reviewers: kristina, jhenderson, grimar, jakehehrlich, rupprecht

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D57904

llvm-svn: 353998

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[llvm-objdump] - llvm-objdump can skip bytes at the end of a section.

Differential Revision: https://reviews.llvm.org/D57549

llvm-svn: 352900

[ELF] Return the section name when calling getSymbolName on a section symbol.

Summary:
Previously, llvm-nm would report symbols for .debug and .note sections as: '?' with an empty section name:

``

[ELF] Return the section name when calling getSymbolName on a section symbol.

Summary:
Previously, llvm-nm would report symbols for .debug and .note sections as: '?' with an empty section name:

```
00000000 ?
00000000 ?
...
```

With this patch the output more closely resembles GNU nm:
```
00000000 N .debug_abbrev
00000000 n .note.GNU-stack
...
```

This patch calls `getSectionName` for sections that belong to symbols of type `ELF::STT_SECTION`, which returns the name of the section from the section string table.

Reviewers: Bigcheese, davide, jhenderson

Reviewed By: davide, jhenderson

Subscribers: rupprecht, jhenderson, llvm-commits

Differential Revision: https://reviews.llvm.org/D57105

llvm-svn: 352785

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[llvm-objdump] - Restore a piece of code removed by mistake in r352366.

Seems when committed the r352366
("[llvm-objdump] - Print LMAs when dumping section headers.")
I resolved merge conflict incor

[llvm-objdump] - Restore a piece of code removed by mistake in r352366.

Seems when committed the r352366
("[llvm-objdump] - Print LMAs when dumping section headers.")
I resolved merge conflict incorrectly and removed this piece by mistake.

Bots did not catch this yet, seems they are slow today,
but the `X86/adjust-vma.test` test case fails locally for me without that.

llvm-svn: 352383

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[llvm-objdump] - Print LMAs when dumping section headers.

When --section-headers is used, GNU objdump prints both LMA and VMA for sections.
llvm-objdump does not do that what makes it's output be sl

[llvm-objdump] - Print LMAs when dumping section headers.

When --section-headers is used, GNU objdump prints both LMA and VMA for sections.
llvm-objdump does not do that what makes it's output be slightly inconsistent.

Patch teaches llvm-objdump to print LMA/VMA for ELF file formats.
The behavior for other formats remains unchanged.

Differential revision: https://reviews.llvm.org/D57146

llvm-svn: 352366

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[llvm-objdump] - Fix comment. NFC.

This was mentioned by James Henderson
in review for https://reviews.llvm.org/D57051.

llvm-svn: 352348

[llvm-objdump] - Implement the --adjust-vma option.

GNU objdump's help says: "--adjust-vma: Add OFFSET to all displayed section addresses"
In real life what it does is a bit more complicated
(and IM

[llvm-objdump] - Implement the --adjust-vma option.

GNU objdump's help says: "--adjust-vma: Add OFFSET to all displayed section addresses"
In real life what it does is a bit more complicated
(and IMO not always reasonable. For example, GNU objdump prints not only VMA, but also LMA
for sections. And with --adjust-vma it adjusts LMA, but only when a section has relocations.
llvm-objsump does not seem to support printing LMAs yet, but GNU's logic anyways does not
make sense for me here).

This patch tries to adjust VMA. I tried to implement a reasonable approach.
I am not adjusting sections that are not allocatable. As, for example, adjusting debug sections
VA's and rel[a] sections VA's should not make sense. This behavior seems to be GNU compatible.

Differential revision: https://reviews.llvm.org/D57051

llvm-svn: 352347

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[llvm-objdump] - Move common code to a new printRelocation() helper. NFC.

This extracts the common code for printing relocations into a new helper function.

llvm-svn: 351951

[llvm-objdump] - Move variable. NFC.

It was too far from the place where it is used.

llvm-svn: 351942

[llvm-objdump] - Split disassembleObject() into two methods. NFCI.

Currently, disassembleObject() is a ~550 lines length function.

This patch splits it into two, where first do all helper objects i

[llvm-objdump] - Split disassembleObject() into two methods. NFCI.

Currently, disassembleObject() is a ~550 lines length function.

This patch splits it into two, where first do all helper objects initializations
and calls the second which does all the rest job.
This is a straightforward split.

Differential revision: https://reviews.llvm.org/D57020

llvm-svn: 351940

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[llvm-objdump] - Introduce getRelocsMap() helper. NFCI.

Currently disassembleObject() is a ~550 lines length function.
This patch extracts the code that creates a section->their relocation
mapping i

[llvm-objdump] - Introduce getRelocsMap() helper. NFCI.

Currently disassembleObject() is a ~550 lines length function.
This patch extracts the code that creates a section->their relocation
mapping into a new helper function to simplify/reduce it a bit.

Differential revision: https://reviews.llvm.org/D57019

llvm-svn: 351824

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Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the ne

Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636

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Revert r351529 "[llvm-objdump][NFC] Improve readability."

msan errors in ELF/strip-all.s.

llvm-svn: 351556

Reland r351529 "[llvm-objdump][NFC] Improve readability."

`SectionSymbol*` is cast from `void*` to
`std::tuple<uint64_t, StringRef, uint8_t>` in AMDGPUSymbolizer, so it has to
*be* one, not *act lik

Reland r351529 "[llvm-objdump][NFC] Improve readability."

`SectionSymbol*` is cast from `void*` to
`std::tuple<uint64_t, StringRef, uint8_t>` in AMDGPUSymbolizer, so it has to
*be* one, not *act like* one.

llvm-svn: 351553

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[llvm-objdump] - Dump the archive headers when -all-headers is specified.

When -all-headers is given it is supposed to dump all headers,
but now it skips the archive headers for no reason.

The patc

[llvm-objdump] - Dump the archive headers when -all-headers is specified.

When -all-headers is given it is supposed to dump all headers,
but now it skips the archive headers for no reason.

The patch fixes that.

Differential revision: https://reviews.llvm.org/D56780

llvm-svn: 351547

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[llvm-objdump] - Move getRelocationValueString and dependenices out of the llvm-objdump.cpp

getRelocationValueString is a dispatcher function that calls the
corresponding ELF/COFF/Wasm/MachO impleme

[llvm-objdump] - Move getRelocationValueString and dependenices out of the llvm-objdump.cpp

getRelocationValueString is a dispatcher function that calls the
corresponding ELF/COFF/Wasm/MachO implementations
that currently live in the llvm-objdump.cpp file.

These implementations better be moved to ELFDump.cpp,
COFFDump.cpp and other corresponding files, to move platform specific
implementation out from the common logic.

The patch does that. Also, I had to move ToolSectionFilter helper
and SectionFilterIterator, SectionFilter to a header to make them
available across the objdump code.

Differential revision: https://reviews.llvm.org/D56842

llvm-svn: 351545

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[llvm-objdump] - Show aliases in -help.

Currently llvm-objdump is inconsistent.

When -help is specified it shows no aliases except two.
Aliases are shown with -help-hidden though.
GNU objdump also

[llvm-objdump] - Show aliases in -help.

Currently llvm-objdump is inconsistent.

When -help is specified it shows no aliases except two.
Aliases are shown with -help-hidden though.
GNU objdump also prints them by default.

This patch does a change to always show all aliases
when -help is given.

Differential revision: https://reviews.llvm.org/D56853

llvm-svn: 351542

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Revert r351529 "[llvm-objdump][NFC] Improve readability."

Breaks labels-branch.s

llvm-svn: 351534

[llvm-objdump][NFC] Improve readability.

Summary:
Introduce a `struct SectionSymbol` instead of
`tuple<uint64_t, StringRef, uint8>`.

Reviewers: jhenderson, davide

Subscribers: rupprecht, llvm-comm

[llvm-objdump][NFC] Improve readability.

Summary:
Introduce a `struct SectionSymbol` instead of
`tuple<uint64_t, StringRef, uint8>`.

Reviewers: jhenderson, davide

Subscribers: rupprecht, llvm-commits

Differential Revision: https://reviews.llvm.org/D56858

llvm-svn: 351529

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[WebAssembly] Fixed objdump not parsing function headers.

Summary:
objdump was interpreting the function header containing the locals
declaration as instructions. To parse these without injecting ta

[WebAssembly] Fixed objdump not parsing function headers.

Summary:
objdump was interpreting the function header containing the locals
declaration as instructions. To parse these without injecting target
specific code in objdump, MCDisassembler::onSymbolStart was added to
be implemented by the WebAssembly implemention.

WasmObjectFile now returns a code offset for the "address" of a symbol,
rather than the index. This is also more in-line with what other
targets do.

Also ensured that the AsmParser correctly puts each function
in its own segment to enable this test case.

Reviewers: sbc100, dschuff

Subscribers: jgravelle-google, aheejin, sunfish, rupprecht, llvm-commits

Differential Revision: https://reviews.llvm.org/D56684

llvm-svn: 351460

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