Differential D54599

libc/csu: Pass HWCAP flags to ifunc resolver functions
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Authored by sarah.walker2_arm.com on Jan 8 2026, 10:52 AM.

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rGdee5c2665452: libc/csu: Pass HWCAP flags to ifunc resolver functions
rG5eec3531204b: libc/csu: Pass HWCAP flags to ifunc resolver functions

Summary

Function arguments are based on Section 9.4.1 "GNU C Library IFUNC interface"
from "System V ABI for the Arm 64-bit Architecture (AArch64)", 2025Q1.
(https://github.com/ARM-software/abi-aa/releases/download/2025Q1/sysvabi64.pdf)

Sponsored by: Arm Ltd

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rG FreeBSD src repository

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Tests Not Applicable

Event Timeline

sarah.walker2_arm.com created this revision.Jan 8 2026, 10:52 AM

Herald added a reviewer: andrew. · View Herald TranscriptJan 8 2026, 10:52 AM

Herald added subscribers: emaste, imp. · View Herald Transcript

sarah.walker2_arm.com requested review of this revision.Jan 8 2026, 10:52 AM

Harbormaster completed remote builds in B69714: Diff 169314.Jan 8 2026, 10:52 AM

sarah.walker2_arm.com mentioned this in D54559: rtld-elf: Pass HWCAP flags to ifunc resolver functions.Jan 8 2026, 12:06 PM

andrew added inline comments.Jan 8 2026, 2:36 PM

lib/libc/csu/aarch64/reloc.c
63

Address style issues.

Harbormaster completed remote builds in B69761: Diff 169400.Jan 9 2026, 4:05 PM

andrew added inline comments.Jan 9 2026, 5:34 PM

lib/libc/csu/aarch64/reloc.c
63	The second arg is no longer const in the other places we define the function pointer type. (not sure if it should be or not as long as it's consistent)

Make ifunc_arg argument const.

Harbormaster completed remote builds in B69818: Diff 169510.Jan 12 2026, 9:43 AM

andrew accepted this revision.Jan 12 2026, 10:55 AM

This revision is now accepted and ready to land.Jan 12 2026, 10:55 AM

Closed by commit rG5eec3531204b: libc/csu: Pass HWCAP flags to ifunc resolver functions (authored by sarah.walker2_arm.com, committed by andrew). · Explain WhyJan 14 2026, 12:54 AM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG5eec3531204b: libc/csu: Pass HWCAP flags to ifunc resolver functions.

andrew added a commit: rGdee5c2665452: libc/csu: Pass HWCAP flags to ifunc resolver functions.Feb 9 2026, 4:29 PM

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lib/

libc/

csu/

aarch64/

31 lines

Diff 169592

lib/libc/csu/aarch64/reloc.c

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