[LoongArch] Parse LoongArch base ABI in ObjectYAML and llvm-readobj

LoongArch e_flags definition:
https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_e_flags_identifies_abi

[LoongArch] Parse LoongArch base ABI in ObjectYAML and llvm-readobj

LoongArch e_flags definition:
https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html#_e_flags_identifies_abi_type_and_version

Differential Revision: https://reviews.llvm.org/D130238

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[llvm-readobj][RISCV] Support dumping PT_RISCV_ATTRIBUTES

This patch drops the prefix `PT_RISCV_` when dumping `PT_RISCV_ATTRIBUTES`.

GNU readelf dumps it as `RISCV_ATTRIBUT`. Because GNU readelf u

[llvm-readobj][RISCV] Support dumping PT_RISCV_ATTRIBUTES

This patch drops the prefix `PT_RISCV_` when dumping `PT_RISCV_ATTRIBUTES`.

GNU readelf dumps it as `RISCV_ATTRIBUT`. Because GNU readelf uses
something like `%-14.14s` so only the first 14 bytes are printed.

Differential Revision: https://reviews.llvm.org/D128493

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[Propeller] Encode address offsets of basic blocks relative to the end of the previous basic blocks.

This is a resurrection of D106421 with the change that it keeps backward-compatibility. This mean

[Propeller] Encode address offsets of basic blocks relative to the end of the previous basic blocks.

This is a resurrection of D106421 with the change that it keeps backward-compatibility. This means decoding the previous version of `LLVM_BB_ADDR_MAP` will work. This is required as the profile mapping tool is not released with LLVM (AutoFDO). As suggested by @jhenderson we rename the original section type value to `SHT_LLVM_BB_ADDR_MAP_V0` and assign a new value to the `SHT_LLVM_BB_ADDR_MAP` section type. The new encoding adds a version byte to each function entry to specify the encoding version for that function. This patch also adds a feature byte to be used with more flexibility in the future. An use-case example for the feature field is encoding multi-section functions more concisely using a different format.

Conceptually, the new encoding emits basic block offsets and sizes as label differences between each two consecutive basic block begin and end label. When decoding, offsets must be aggregated along with basic block sizes to calculate the final offsets of basic blocks relative to the function address.

This encoding uses smaller values compared to the existing one (offsets relative to function symbol).
Smaller values tend to occupy fewer bytes in ULEB128 encoding. As a result, we get about 17% total reduction in the size of the bb-address-map section (from about 11MB to 9MB for the clang PGO binary).
The extra two bytes (version and feature fields) incur a small 3% size overhead to the `LLVM_BB_ADDR_MAP` section size.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D121346

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[llvm-readobj] Simplify startswith+drop_front pattern with consume_front. NFC

[llvm] Don't use Optional::hasValue (NFC)

[llvm] Use value_or instead of getValueOr (NFC)

Replace to_hexString by touhexstr [NFC]

LLVM had 2 methods to convert a number to an hexa string,
this remove one of them.

Differential Revision: https://reviews.llvm.org/D127958

[AMDGPU] Add gfx11 subtarget ELF definition

This is the first patch of a series to upstream support for the new
subtarget.

Contributors:
Jay Foad <[email protected]>
Konstantin Zhuravlyov <kzhuravl_

[AMDGPU] Add gfx11 subtarget ELF definition

This is the first patch of a series to upstream support for the new
subtarget.

Contributors:
Jay Foad <[email protected]>
Konstantin Zhuravlyov <[email protected]>

Patch 1/N for upstreaming AMDGPU gfx11 architectures.

Reviewed By: foad, kzhuravl, #amdgpu

Differential Revision: https://reviews.llvm.org/D124536

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[MTE] Add NT_ANDROID_TYPE_MEMTAG

This ELF note is aarch64 and Android-specific. It specifies to the
dynamic loader that specific work should be scheduled to enable MTE
protection of stack and heap r

[MTE] Add NT_ANDROID_TYPE_MEMTAG

This ELF note is aarch64 and Android-specific. It specifies to the
dynamic loader that specific work should be scheduled to enable MTE
protection of stack and heap regions.

Current synthesis of the ".note.android.memtag" ELF note is done in the
Android build system. We'd like to move that to the compiler, and this
is the first step.

Reviewed By: MaskRay, jhenderson

Differential Revision: https://reviews.llvm.org/D119381

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[AMDGPU] Add gfx1036 target

Differential Revision: https://reviews.llvm.org/D120846

[AMDGPU] Add gfx940 target

This is target definition only.

Differential Revision: https://reviews.llvm.org/D120688

Revert "Encode address offsets of basic blocks relative to the end of the previous basic blocks."

This reverts commit 029283c1c0d8d06fbf000f5682c56b8595a1101f.
The code in `ELFFile::decodeBBAddrMap`

Revert "Encode address offsets of basic blocks relative to the end of the previous basic blocks."

This reverts commit 029283c1c0d8d06fbf000f5682c56b8595a1101f.
The code in `ELFFile::decodeBBAddrMap` was not changed in the submitted patch.

Differential Revision: https://reviews.llvm.org/D120457

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[ELF] Use SHF_SUNW_NODISCARD instead of SHF_GNU_RETAIN on Solaris

Instead of the GNU extension `SHF_GNU_RETAIN`, Solaris provides equivalent
functionality with `SHF_SUNW_NODISCARD`. This patch imple

[ELF] Use SHF_SUNW_NODISCARD instead of SHF_GNU_RETAIN on Solaris

Instead of the GNU extension `SHF_GNU_RETAIN`, Solaris provides equivalent
functionality with `SHF_SUNW_NODISCARD`. This patch implements the necessary
support.

Tested on `sparcv9-sun-solaris2.11`, `amd64-pc-solaris2.11`, and
`x86_64-pc-linux-gnu`.

Differential Revision: https://reviews.llvm.org/D107955

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[MIPS] Recognize DT_MIPS_XHASH dynamic table tag

LLVM tools do not emit `DT_MIPS_XHASH` dynamic table tag. But now
`llvm-objdump` and `llvm-readelf` recognize this tag and print it.

Fixes https://g

[MIPS] Recognize DT_MIPS_XHASH dynamic table tag

LLVM tools do not emit `DT_MIPS_XHASH` dynamic table tag. But now
`llvm-objdump` and `llvm-readelf` recognize this tag and print it.

Fixes https://github.com/llvm/llvm-project/issues/53996

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Encode address offsets of basic blocks relative to the end of the previous basic blocks.

Conceptually, the new encoding emits the offsets and sizes as label differences between each two consecutive

Encode address offsets of basic blocks relative to the end of the previous basic blocks.

Conceptually, the new encoding emits the offsets and sizes as label differences between each two consecutive basic block begin and end label. When decoding, the offsets must be aggregated along with basic block sizes to calculate the final relative-to-function offsets of basic blocks.

This encoding uses smaller values compared to the existing one (offsets relative to function symbol).
Smaller values tend to occupy fewer bytes in ULEB128 encoding. As a result, we get about 25% reduction
in the size of the bb-address-map section (reduction from about 9MB to 7MB).

Reviewed By: tmsriram, jhenderson

Differential Revision: https://reviews.llvm.org/D106421

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[LoongArch 2/6] Add ELF machine flag and relocs for upcoming LoongArch target

This patch adds necessary definitions for LoongArch ELF files, including
relocation types. Also adds initial support to

[LoongArch 2/6] Add ELF machine flag and relocs for upcoming LoongArch target

This patch adds necessary definitions for LoongArch ELF files, including
relocation types. Also adds initial support to ELFYaml, llvm-objdump,
and llvm-readobj in order to work with LoongArch ELFs.

Differential revision: https://reviews.llvm.org/D115859

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AMDGPU {NFC}: Add code object v5 support and generate metadata for implicit kernel args

Summary:
Add code object v5 support (deafult is still v4)
Generate metadata for implicit kernel args for t

AMDGPU {NFC}: Add code object v5 support and generate metadata for implicit kernel args

Summary:
Add code object v5 support (deafult is still v4)
Generate metadata for implicit kernel args for the new ABI
Set the metadata version to be 1.2

Reviewers:
t-tye, b-sumner, arsenm, and bcahoon

Fixes:
SWDEV-307188, SWDEV-307189

Differential Revision:
https://reviews.llvm.org/D118272

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Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"

This reverts commit ef8206320769ad31422a803a0d6de6077fd231d2.

- It conflicts with the existing llvm::size in STLEx

Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"

This reverts commit ef8206320769ad31422a803a0d6de6077fd231d2.

- It conflicts with the existing llvm::size in STLExtras, which will now
never be called.
- Calling it without llvm:: breaks C++17 compat

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Rename llvm::array_lengthof into llvm::size to match std::size from C++17

As a conquence move llvm::array_lengthof from STLExtras.h to
STLForwardCompat.h (which is included by STLExtras.h so no buil

Rename llvm::array_lengthof into llvm::size to match std::size from C++17

As a conquence move llvm::array_lengthof from STLExtras.h to
STLForwardCompat.h (which is included by STLExtras.h so no build
breakage expected).

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Cleanup headers for BinaryFormat

A few header removal, some forward declarations. As usual, this can
break your build due to false dependencies, the most notable change are:

- "llvm/BinaryFormat/AM

Cleanup headers for BinaryFormat

A few header removal, some forward declarations. As usual, this can
break your build due to false dependencies, the most notable change are:

- "llvm/BinaryFormat/AMDGPUMetadataVerifier.h" no longer includes "llvm/BinaryFormat/MsgPackDocument.h"

The impact on generated preprocessed lines for LLVMBinaryFormat is
pretty nice:

$ clang++ -E -Iinclude -I../llvm/include ../llvm/lib/BinaryFormat/*.cpp -std=c++14 -fno-rtti -fno-exceptions | wc -l
before this patch: 705281
after this patch: 751456

Discourse thread on the topic: https://llvm.discourse.group/t/include-what-you-use-include-cleanup

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[llvm] Remove uses of `std::vector<bool>`

LLVM Programmer’s Manual strongly discourages the use of `std::vector<bool>` and suggests `llvm::BitVector` as a possible replacement.

This patch does just

[llvm] Remove uses of `std::vector<bool>`

LLVM Programmer’s Manual strongly discourages the use of `std::vector<bool>` and suggests `llvm::BitVector` as a possible replacement.

This patch does just that for llvm.

Reviewed By: dexonsmith

Differential Revision: https://reviews.llvm.org/D117121

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[RISCV] Add missing e_flag EF_RISCV_TSO

This flag was defined here https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc

Reviewed By: asb, MaskRay, jhenderson

Differentia

[RISCV] Add missing e_flag EF_RISCV_TSO

This flag was defined here https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc

Reviewed By: asb, MaskRay, jhenderson

Differential Revision: https://reviews.llvm.org/D111939

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[llvm-readobj] Check ELFType value first when checking for OpenBSD notes.

Checking ELFType == ELF::ET_CORE first skips string comparison for the
majority of cases.

Suggested by Fangrui Song in D114

[llvm-readobj] Check ELFType value first when checking for OpenBSD notes.

Checking ELFType == ELF::ET_CORE first skips string comparison for the
majority of cases.

Suggested by Fangrui Song in D114635 for a similar construct.

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[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.