Date: Fri, 21 Sep 2018 17:49:37 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r338861 - head/lib/libc Message-ID: <201809211749.w8LHnbap091466@repo.freebsd.org>
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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 CFLAGS
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