[patch][arm][FreeBSD] add support for armv7*-*-freebsd*

[Andreas Tobler <andreast-list@fgznet.ch>]

Hi all,

I'm going to commit this patch if no objections pop up.

We (FreeBSD folks) have added a new target tripplet for armv7*-*-freebsd*
To be able to build GCC we need the below changes.

Results will be posted to the usual place, once they completed....

While here I remove an obsolete define.

I'll post similar patches for gcc-7, gcc-6 and gcc-5 branches.
They differ a bit...

Please speak up if you do not agree.

TIA,
Andreas

2017-10-08  Andreas Tobler  <andreast@gcc.gnu.org>

	* config.gcc (armv7*-*-freebsd*): New target.
	(armv6*-*-freebsd*): Remove obsolete TARGET_FREEBSD_ARMv6 define.

Index: config.gcc
===================================================================
--- config.gcc	(revision 253528)
+++ config.gcc	(working copy)
@@ -1093,11 +1093,14 @@
  	case $target in
  	armv6*-*-freebsd*)
  	    target_cpu_cname="arm1176jzf-s"
-	    tm_defines="${tm_defines} TARGET_FREEBSD_ARMv6=1"
              if test $fbsd_major -ge 11; then
                 tm_defines="${tm_defines} TARGET_FREEBSD_ARM_HARD_FLOAT=1"
              fi
  	    ;;
+	armv7*-*-freebsd*)
+	    target_cpu_cname="generic-armv7-a"
+	    tm_defines="${tm_defines} TARGET_FREEBSD_ARM_HARD_FLOAT=1"
+	    ;;
  	*)
  	    target_cpu_cname="arm9"
  	    ;;