[PATCH] arch/microblaze: add new architecture

[David Holsgrove <david dot holsgrove at xilinx dot com>]

# HG changeset patch
# User David Holsgrove <david.holsgrove@xilinx.com>
# Date 1348113698 -36000
# Node ID 9c93e18b3d68b19303f37bf604c0ad907451872a
# Parent  06b663f297adb76149f089136a78e7d5999c63bd
arch/microblaze: add new architecture

Add Microblaze architecture support.

This depends on EXPERIMENTAL, as upstream projects do not yet
include full support to build a modern microblaze compiler.
This is in the process of being updated, but is not currently
publicly accessible.

Signed-off-by: "David Holsgrove" <david.holsgrove@xilinx.com>

diff -r 06b663f297ad -r 9c93e18b3d68 config/arch/microblaze.in
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config/arch/microblaze.in	Thu Sep 20 14:01:38 2012 +1000
@@ -0,0 +1,22 @@
+# MicroBlaze specific config options
+
+## depends on EXPERIMENTAL
+##
+## select ARCH_SUPPORT_ARCH
+## select ARCH_FLOAT_SW
+## select ARCH_SUPPORTS_BOTH_ENDIAN
+## select ARCH_DEFAULT_BE
+## select ARCH_SUPPORTS_BOTH_MMU
+## select ARCH_DEFAULT_HAS_MMU
+##
+## help The MicroBlaze architecture, as defined by:
+## help 	http://www.xilinx.com/
+## help 
+## help Upstream projects do not currently provide
+## help full support for the microblaze architecture
+## help and as such, this is marked as EXPERIMENTAL
+## help for CT-NG.
+## help 
+## help Support is being added for a modern gcc,
+## help binutils and gdb along with nptl threading
+## help in eglibc for microblaze.
diff -r 06b663f297ad -r 9c93e18b3d68 scripts/build/arch/microblaze.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/build/arch/microblaze.sh	Thu Sep 20 14:01:38 2012 +1000
@@ -0,0 +1,21 @@
+# Compute microblaze specific values
+
+CT_DoArchTupleValues () {
+    # The architecture part of the tuple:
+    CT_TARGET_ARCH="${CT_ARCH}${target_endian_el}"
+
+    # gcc ./configure flags
+    CT_ARCH_WITH_ARCH=
+    CT_ARCH_WITH_ABI=
+    CT_ARCH_WITH_CPU=
+    CT_ARCH_WITH_TUNE=
+    CT_ARCH_WITH_FPU=
+    CT_ARCH_WITH_FLOAT=
+
+    # CFLAGS
+    case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
+        y,) CT_ARCH_FLOAT_CFLAG="-mhard-float" ;;
+        ,y) CT_ARCH_FLOAT_CFLAG="-msoft-float" ;;
+    esac
+
+}

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