Merging of projects/armv6, part 3

r238211:
Support TARGET_ARCH=armv6 and TARGET_ARCH=armv6eb

This adds a new TARGET_ARCH for building on ARM
processors that support the ARMv6K multiprocessor
extensions.  In particular, these processors have
better support for TLS and mutex operations.

This mostly touches a lot of Makefiles to extend
existing patterns for inferring CPUARCH from ARCH.
It also configures:
 * GCC to default to arm1176jz-s
 * GCC to predefine __FreeBSD_ARCH_armv6__
 * gas to default to ARM_ARCH_V6K
 * uname -p to return 'armv6'
 * make so that MACHINE_ARCH defaults to 'armv6'
It also changes a number of headers to use
the compiler __ARM_ARCH_XXX__ macros to configure
processor-specific support routines.

Submitted by:	Tim Kientzle <kientzle@freebsd.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/contrib/binutils/bfd/config.bfd b/contrib/binutils/bfd/config.bfd
index 2b790b7a..873993f 100755
--- a/contrib/binutils/bfd/config.bfd
+++ b/contrib/binutils/bfd/config.bfd
@@ -277,6 +277,14 @@ case "${targ}" in
     targ_defvec=bfd_elf32_bigarm_vec
     targ_selvecs=bfd_elf32_littlearm_vec
     ;;
+  armv6eb-*-freebsd*)
+    targ_defvec=bfd_elf32_bigarm_vec
+    targ_selvecs=bfd_elf32_littlearm_vec
+    ;;
+  armv6-*-freebsd*)
+    targ_defvec=bfd_elf32_littlearm_vec
+    targ_selvecs=bfd_elf32_bigarm_vec
+    ;;
   arm-*-elf | arm-*-freebsd* | arm*-*-linux-* | arm*-*-conix* | \
   arm*-*-uclinux* | arm-*-kfreebsd*-gnu | \
   arm*-*-eabi* )