svn commit: r297356 - head/share/mk

[Warner Losh]

Author: imp
Date: Mon Mar 28 17:32:31 2016
New Revision: 297356
URL: https://svnweb.freebsd.org/changeset/base/297356

Log:
  Support simple soft floating point abi for CPUTYPE in arm. Complex
  types to follow.

Modified:
  head/share/mk/bsd.cpu.mk

Modified: head/share/mk/bsd.cpu.mk
==============================================================================
--- head/share/mk/bsd.cpu.mk	Mon Mar 28 16:48:28 2016	(r297355)
+++ head/share/mk/bsd.cpu.mk	Mon Mar 28 17:32:31 2016	(r297356)
@@ -108,21 +108,24 @@ _CPUCFLAGS = -march=${CPUTYPE}
 #XXX: gcc doesn't seem to like -mcpu=xscale, and dies while rebuilding itself
 #_CPUCFLAGS = -mcpu=xscale
 _CPUCFLAGS = -march=armv5te -D__XSCALE__
-. elif ${CPUTYPE} == "armv6"
+.  elif ${CPUTYPE:M*soft*} != ""
+_CPUCFLAGS = -mfloat-abi=softfp
+.  elif ${CPUTYPE} == "armv6"
+# Not sure we still need ARM_ARCH_6=1 here.
 _CPUCFLAGS = -march=${CPUTYPE} -DARM_ARCH_6=1
-. elif ${CPUTYPE} == "cortexa"
+.  elif ${CPUTYPE} == "cortexa"
 _CPUCFLAGS = -march=armv7 -DARM_ARCH_6=1 -mfpu=vfp
-. elif ${CPUTYPE:Marmv[4567]*} != ""
+.  elif ${CPUTYPE:Marmv[4567]*} != ""
 # Handle all the armvX types that FreeBSD runs:
 #	armv4, armv4t, armv5, armv5te, armv6, armv6t2, armv7, armv7-a, armv7ve
 # they require -march=. All the others require -mcpu=.
 _CPUCFLAGS = -march=${CPUTYPE}
-. else
+.  else
 # Common values for FreeBSD
-# arm:
+# arm: (any arm v4 or v5 processor you are targetting)
 #	arm920t, arm926ej-s, marvell-pj4, fa526, fa626,
 #	fa606te, fa626te, fa726te
-# armv6:
+# armv6: (any arm v7 or v8 processor you are targetting and the arm1176jzf-s)
 # 	arm1176jzf-s, generic-armv7-a, cortex-a5, cortex-a7, cortex-a8,
 #	cortex-a9, cortex-a12, cortex-a15, cortex-a17, cortex-a53, cortex-a57,
 #	cortex-a72, exynos-m1