Date: Sun, 4 Nov 2018 10:22:02 +0100 From: Dimitry Andric <dim@FreeBSD.org> To: Julian Elischer <julian@FreeBSD.ORG> Cc: Charlie Li <ml@vishwin.info>, Konstantin Belousov <kostikbel@gmail.com>, svn-src-head@freebsd.org, toolchain@freebsd.org, current@freebsd.org Subject: Re: svn commit: r339898 - head/lib/libc/amd64/sys Message-ID: <38169F22-F99D-4F47-9C21-A8C82D44E700@FreeBSD.org> In-Reply-To: <c4e42162-708b-4151-c6f6-a6c8b623c699@freebsd.org> References: <201810300011.w9U0BUui038857@repo.freebsd.org> <a2d14762-d6f9-4c3e-b3d3-efb7dcb2640f@vishwin.info> <20181101160406.GA60233__23941.7825396687$1541088368$gmane$org@spindle.one-eyed-alien.net> <ae15161f-0728-d208-12a2-08a22fcbc50b@vishwin.info> <fdda06af-d189-b9b0-d2d5-26bcf2c6395a@vishwin.info> <20181103152936.GQ5335@kib.kiev.ua> <f8be07cd-f5eb-989c-44f1-ddcd60841411@vishwin.info> <c4e42162-708b-4151-c6f6-a6c8b623c699@freebsd.org>
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[-- Attachment #1 --] On 4 Nov 2018, at 08:43, Julian Elischer <julian@FreeBSD.ORG> wrote: > > what's an ifunc? This is a GNU extension, an "indirect function". It allows you to provide multiple different implementations of the same function, for instance optimized for specific CPU types, and choose between them at dynamic link time (e.g. at run time). See the following for more information: https://sourceware.org/glibc/wiki/GNU_IFUNC https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-ifunc-function-attribute -Dimitry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.2 iF0EARECAB0WIQR6tGLSzjX8bUI5T82wXqMKLiCWowUCW966OgAKCRCwXqMKLiCW o+u8AJ9iSQOO+bA4097obCAXwlkQ7nkh9QCdEbl4GrpQAWjKlu3s3BTtrji9dqE= =0hnj -----END PGP SIGNATURE-----
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