[src/trunk]: src/sys/arch/mips/conf gcc does not pass floating point options ...

[macallan <macallan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a72769c6b4a3
branches:  trunk
changeset: 343647:a72769c6b4a3
user:      macallan <macallan%NetBSD.org@localhost>
date:      Thu Feb 18 20:50:44 2016 +0000

description:
gcc does not pass floating point options to the assembler
by default, because it is afraid that the stricter tests
will break userland code. The new binutils is pickier about
this. Gcc 5.x fixes the issue so for now, set explicitly
the assembler soft-float flags when we build the kernel.
see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64569

diffstat:

 sys/arch/mips/conf/Makefile.mips |  14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diffs (28 lines):

diff -r 99c687e64cda -r a72769c6b4a3 sys/arch/mips/conf/Makefile.mips
--- a/sys/arch/mips/conf/Makefile.mips  Thu Feb 18 20:33:40 2016 +0000
+++ b/sys/arch/mips/conf/Makefile.mips  Thu Feb 18 20:50:44 2016 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.mips,v 1.62 2015/08/24 14:04:24 uebayasi Exp $
+#      $NetBSD: Makefile.mips,v 1.63 2016/02/18 20:50:44 macallan Exp $
 
 # Makefile for NetBSD
 #
@@ -46,6 +46,18 @@
 CPPFLAGS+=     -D${MACHINE}
 DEFGP?=                -G 0
 GP?=           ${DEFGP}
+
+# XXX
+# gcc does not pass floating point options to the assembler
+# by default, because it is afraid that the stricter tests
+# will break userland code. The new binutils is pickier about
+# this. Gcc 5.x fixes the issue so for now, set explicitly
+# the assembler soft-float flags when we build the kernel.
+# see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64569
+
+CFLAGS+=       -Wa,-msoft-float
+COPTS.mips_fpu.c+=     -Wa,-mhard-float
+
 CFLAGS+=       ${GP} -mno-abicalls -msoft-float -ffixed-24
 .if defined(LP64) && ${LP64} == "yes"
 .if ${MACHINE_ARCH} == "mips64eb" || ${MACHINE_ARCH} == "mips64el"