Add CPU feature detection using elf_aux_info#130901
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Jul 16, 2026
| #else // !HAVE_AUXV_HWCAP_H | ||
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| #if HAVE_SYSCTLBYNAME | ||
| #elif HAVE_SYSCTLBYNAME |
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Note that FreeBSD has sysctlbyname but it doesn't define those macOS style stringly names for ISAs, instead uses bitmask like Linux. Hence the order was important.
This was referenced Jul 17, 2026
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When running AOT smoke tests on freebsd-arm64, it was failing AOT apps with:
[6](https://github.com/am11/CrossRepoCITesting/actions/runs/29426499240/job/87390152366#step:5:336) Running /home/runner/work/CrossRepoCITesting/CrossRepoCITesting/runtime/artifacts/tests/coreclr/freebsd.arm64.Checked/nativeaot/SmokeTests/PInvoke/PInvoke/native/PInvoke... The current CPU is missing one or more of the following instruction sets: AdvSimd Abort trapIt's a net11.0 regression from #118101; now passing: https://github.com/am11/CrossRepoCITesting/actions/runs/29519372748/job/87692356810