Date: Fri, 21 Sep 2018 11:11:02 -0700 From: Cy Schubert <Cy.Schubert@cschubert.com> To: Ed Maste <emaste@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r338861 - head/lib/libc Message-ID: <201809211811.w8LIB3Oq071100@slippy.cwsent.com> In-Reply-To: Message from Ed Maste <emaste@FreeBSD.org> of "Fri, 21 Sep 2018 17:49:37 -0000." <201809211749.w8LHnbap091466@repo.freebsd.org>
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In message <201809211749.w8LHnbap091466@repo.freebsd.org>, Ed Maste writes: > Author: emaste > Date: Fri Sep 21 17:49:37 2018 > New Revision: 338861 > URL: https://svnweb.freebsd.org/changeset/base/338861 > > Log: > libc: require ifunc-capable linker for amd64/i386 > > We expect to introduce optimized libc routines in the near future, > which requires use of a linker that supports ifuncs. > > Approved by: re (gjb, kib) > Sponsored by: The FreeBSD Foundation > > Modified: > head/lib/libc/Makefile > > Modified: head/lib/libc/Makefile > ============================================================================= > = > --- head/lib/libc/Makefile Fri Sep 21 17:44:05 2018 (r338860) > +++ head/lib/libc/Makefile Fri Sep 21 17:49:37 2018 (r338861) > @@ -21,6 +21,11 @@ LIBC_ARCH=${MACHINE_ARCH} > LIBC_ARCH=${MACHINE_CPUARCH} > .endif > > +.if (${LIBC_ARCH} == amd64 || ${LIBC_ARCH} == i386) && \ > + defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mifunc} == "" > +.error ${LIBC_ARCH} libc requires linker ifunc support > +.endif > + > # All library objects contain FreeBSD revision strings by default; they may > be > # excluded as a space-saving measure. To produce a library that does > # not contain these strings, add -DSTRIP_FBSDID (see <sys/cdefs.h>) to CFLAG > S > Should this require bumping __FreeBSD_version? -- Cheers, Cy Schubert <Cy.Schubert@cschubert.com> FreeBSD UNIX: <cy@FreeBSD.org> Web: http://www.FreeBSD.org The need of the many outweighs the greed of the few.
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