llvm-project.git/llvm/lib/ObjectYAML/ELFYAML.cpp, branch users/mingmingl-llvm/samplefdo-profile-format Unnamed repository; edit this file 'description' to name the repository. [SHT_LLVM_BB_ADDR_MAP] Change the callsite feature to emit end of callsites. (#155041) 2025-08-25T17:17:29+00:00 Rahman Lavaee rahmanl@google.com 2025-08-25T17:17:29+00:00 a61ff1487b6696b9ab3bb7d9c2c1ea899eb7a4f0 This PR simply moves the callsite anchors from the beginning of callsites to their end. Emitting the end of callsites is more sensible as it allows breaking the basic block into subblocks which end with control transfer instructions. 
This PR simply moves the callsite anchors from the beginning of
callsites to their end.

Emitting the end of callsites is more sensible as it allows breaking the
basic block into subblocks which end with control transfer instructions.
 Reapply "Allow "[[FLAGS=<none>]]" value in the ELF Fileheader Flags field (#143845)" (#151094) 2025-07-31T21:11:06+00:00 Aakanksha Patil 41199349+aakanksha555@users.noreply.github.com 2025-07-31T21:11:06+00:00 d6c85fc9abd64a309a7c88c39ab12b1201e516de This fixes the issues with 0b054e2 This reverts commit b80ce054206db223ec8c3cd55fad510c97afbc9f. 
This fixes the issues with 0b054e2

This reverts commit b80ce054206db223ec8c3cd55fad510c97afbc9f.
 [elf] Add support for {SHT,PT}_GNU_SFRAME constants (#148803) 2025-07-16T07:12:15+00:00 Pavel Labath pavel@labath.sk 2025-07-16T07:12:15+00:00 d4a8a01cef1e417dd8c76fd2c5cde568122c27e3 Reference: https://sourceware.org/git/?p=gnu-gabi.git;a=blob;f=program-loading-and-dynamic-linking.txt;h=3357d865720285df2d29c4e8f92de49ddf1beb40;hb=refs/heads/master 
Reference:
https://sourceware.org/git/?p=gnu-gabi.git;a=blob;f=program-loading-and-dynamic-linking.txt;h=3357d865720285df2d29c4e8f92de49ddf1beb40;hb=refs/heads/master
 [SHT_LLVM_BB_ADDR_MAP] Remove support for versions 1 and 0 (SHT_LLVM_BB_ADDR_MAP_V0). (#146186) 2025-07-02T17:31:52+00:00 Rahman Lavaee rahmanl@google.com 2025-07-02T17:31:52+00:00 6b623a6622707ea47d84ab0069f766215a6fec44 Version 2 was added more than two years ago (https://github.com/llvm/llvm-project/commit/6015a045d768feab3bae9ad9c0c81e118df8b04a). So it should be safe to deprecate older versions. 
Version 2 was added more than two years ago
(https://github.com/llvm/llvm-project/commit/6015a045d768feab3bae9ad9c0c81e118df8b04a).
So it should be safe to deprecate older versions.
 [SHT_LLVM_BB_ADDR_MAP] Encode and decode callsite offsets in a newly-introduced SHT_LLVM_BB_ADDR_MAP version. (#144426) 2025-06-23T16:25:14+00:00 Rahman Lavaee rahmanl@google.com 2025-06-23T16:25:14+00:00 8d7a8fcc3ab9f6d4c4a7e4312876fe94ed3d6c4f Recently, we have been looking at some optimizations targeting individual calls. In particular, we plan to extend the address mapping technique to map to individual callsites. For example, in this piece of code for a basic blocks: ``` <BB>: 1200: lea 0x1(%rcx), %rdx 1204: callq foo 1209: cmpq 0x10, %rdx 120d: ja L1 ``` We want to emit 0x9 as the call site offset for `callq foo` (the offset from the block entry to right after the call), so that we know if a sampled address is before the call or after. This PR implements the decode/encode/emit capability. The Codegen change will be implemented in a later PR. 
Recently, we have been looking at some optimizations targeting
individual calls. In particular, we plan to extend the address mapping
technique to map to individual callsites. For example, in this piece of
code for a basic blocks:

```
<BB>:
1200:    lea 0x1(%rcx), %rdx
1204:    callq foo
1209:    cmpq 0x10, %rdx
120d:    ja  L1
```

We want to emit 0x9 as the call site offset for `callq foo` (the offset
from the block entry to right after the call), so that we know if a
sampled address is before the call or after.

This PR implements the decode/encode/emit capability. The Codegen change
will be implemented in a later PR.
 [AMDGPU] Initial support for gfx1250 target. (#144965) 2025-06-20T05:52:51+00:00 Stanislav Mekhanoshin rampitec@users.noreply.github.com 2025-06-20T05:52:51+00:00 69974658f079cec82a9fc13dd4993ab1e072c811 This is just a stub for now. 
This is just a stub for now.
 [SPARC] Add llvm-readobj support, update ELF reloc types and dynamic tags. (#137916) 2025-05-05T15:39:31+00:00 Alex Rønne Petersen alex@alexrp.com 2025-05-05T15:39:31+00:00 4418a8e5ef865bc5062a338697ddd44b14c8005d Values sourced from binutils. 
Values sourced from binutils.
 [AMDGPU] Replace gfx940 and gfx941 with gfx942 in llvm (#126763) 2025-02-19T09:20:48+00:00 Fabian Ritter fabian.ritter@amd.com 2025-02-19T09:20:48+00:00 8615f9aaffd4337a33ea979f010c4d6410ba6125 gfx940 and gfx941 are no longer supported. This is one of a series of PRs to remove them from the code base. This PR removes all non-documentation occurrences of gfx940/gfx941 from the llvm directory, and the remaining occurrences in clang. Documentation changes will follow. For SWDEV-512631 
gfx940 and gfx941 are no longer supported. This is one of a series of
PRs to remove them from the code base.

This PR removes all non-documentation occurrences of gfx940/gfx941 from
the llvm directory, and the remaining occurrences in clang.

Documentation changes will follow.

For SWDEV-512631
 [AArch64] Add support for SHF_AARCH64_PURECODE ELF section flag (1/3) (#125687) 2025-02-14T08:56:07+00:00 Csanád Hajdú csanad.hajdu@arm.com 2025-02-14T08:56:07+00:00 a190f15d2b84e873ee978d0e6f04bf36e8f17583 Add support for the new SHF_AARCH64_PURECODE ELF section flag: https://github.com/ARM-software/abi-aa/pull/304 The general implementation follows the existing one for ARM targets. Generating object files with the `SHF_AARCH64_PURECODE` flag set is enabled by the `+execute-only` target feature. Related PRs: * Clang: https://github.com/llvm/llvm-project/pull/125688 * LLD: https://github.com/llvm/llvm-project/pull/125689 
Add support for the new SHF_AARCH64_PURECODE ELF section flag:
https://github.com/ARM-software/abi-aa/pull/304

The general implementation follows the existing one for ARM targets.
Generating object files with the `SHF_AARCH64_PURECODE` flag set is
enabled by the `+execute-only` target feature.

Related PRs:
* Clang: https://github.com/llvm/llvm-project/pull/125688
* LLD: https://github.com/llvm/llvm-project/pull/125689
 [yaml2obj] Don't use uninitialized Type (#123274) 2025-01-23T20:22:16+00:00 Vitaly Buka vitalybuka@google.com 2025-01-23T20:22:16+00:00 c4ca87ee78fa4f1978e018e6e3a260ac9aea399d Alternative to #123137 With -DMACHINE=EM_NONE, machine specific sections, like SHT_ARM_EXIDX, will fall to parse and set `Type`. This triggers msan on ``` yaml2obj llvm-project/llvm/test/tools/yaml2obj/ELF/mips-abi-flags.yaml -DMACHINE=EM_NONE ``` 
Alternative to #123137

With -DMACHINE=EM_NONE, machine specific
sections, like SHT_ARM_EXIDX, will fall to parse
and set `Type`.

This triggers msan on
```
yaml2obj llvm-project/llvm/test/tools/yaml2obj/ELF/mips-abi-flags.yaml -DMACHINE=EM_NONE
```