Page MenuHomeFreeBSD

modules: bzero the modspecific_t
ClosedPublic

Authored by khng on Jul 1 2023, 7:47 PM.
Tags
None
Referenced Files
Unknown Object (File)
Sun, Oct 12, 2:43 PM
Unknown Object (File)
Sun, Oct 12, 2:42 PM
Unknown Object (File)
Sun, Oct 12, 3:35 AM
Unknown Object (File)
Sun, Oct 12, 3:35 AM
Unknown Object (File)
Sun, Oct 12, 3:35 AM
Unknown Object (File)
Sat, Oct 11, 5:38 PM
Unknown Object (File)
Tue, Sep 30, 9:16 AM
Unknown Object (File)
Sep 11 2025, 3:02 PM
Subscribers

Details

Summary

Per https://reviews.llvm.org/D68115, only the first field is
zero-initialized, meanwhile other fields are undef.

The pattern can be observed on clang as well, that when
-ftrivial-auto-var-init=pattern is specified 0xaa is filled for
non-active fields, otherwise they are zero-initialized.
Technically both are acceptable when using clang. However it
would be good to simply bzero the modspecific_t in such case to
strict to the standard.

MFC with: 2cab2d43b83bddd44ecc1f267afb5e2725975ac7
MFC after: 1 day
Sponsored by: Juniper Networks, Inc.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable