[all-commits] [llvm/llvm-project] ddf124: [Test] Disable Linux perf test under WSL (#137822)

[Michael Kruse via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ddf124984212718edc65a7a21d0c04eed4d8fcd9
      https://github.com/llvm/llvm-project/commit/ddf124984212718edc65a7a21d0c04eed4d8fcd9
  Author: Michael Kruse <llvm-project at meinersbur.de>
  Date:   2025-05-13 (Tue, 13 May 2025)

  Changed paths:
    M llvm/test/ExecutionEngine/JITLink/x86-64/ELF_perf.s
    M llvm/test/lit.cfg.py

  Log Message:
  -----------
  [Test] Disable Linux perf test under WSL (#137822)

Linux perf_events is not implemented in WSL1, skip the test that
requires it.

There is just a single test that requires perf_events. It fails under
WSL1 with:
```sh
env JITDUMPDIR=/home/meinersbur/build/llvm-project/release/test/ExecutionEngine/JITLink/x86-64/Output/ELF_perf.s.tmp /home/meinersbur/build/llvm-project/release/bin/llvm-jitlink -perf-support /home/meinersbur/build/llvm-project/release/test/ExecutionEngine/JITLink/x86-64/Output/ELF_perf.s.tmp/ELF_x86-64_perf.o
llvm-jitlink error: PerfState not initialized
```

WSL environment detection logic follows
https://github.com/scivision/detect-windows-subsystem-for-linux/blob/main/is_wsl.py

Also see WSL issue: https://github.com/microsoft/WSL/issues/4595



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