svn commit: r276645 - head/sys/conf
Ian Lepore
ian at FreeBSD.org
Sun Jan 4 00:12:31 UTC 2015
Author: ian
Date: Sun Jan 4 00:12:30 2015
New Revision: 276645
URL: https://svnweb.freebsd.org/changeset/base/276645
Log:
Don't allow clang to use fpu instructions or registers in kernel modules.
Submitted by: Keith White <kwhite at site.uottawa.ca>
Modified:
head/sys/conf/kmod.mk
Modified: head/sys/conf/kmod.mk
==============================================================================
--- head/sys/conf/kmod.mk Sat Jan 3 23:57:03 2015 (r276644)
+++ head/sys/conf/kmod.mk Sun Jan 4 00:12:30 2015 (r276645)
@@ -119,8 +119,10 @@ CFLAGS+= -fno-omit-frame-pointer -mno-om
.endif
# Temporary workaround for PR 196407, which contains the fascinating details.
+# Don't allow clang to use fpu instructions or registers in kernel modules.
.if ${MACHINE_CPUARCH} == arm
CFLAGS.clang+= -mllvm -arm-use-movt=0
+CFLAGS.clang+= -mfpu=none
.endif
.if ${MACHINE_CPUARCH} == powerpc
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