# HG changeset patch
# User Sam Ravnborg <sam@ravnborg.org>
# Date 1301847720 -7200
# Node ID c131e30363ee2407eade43306d49475dc72e5c9c
# Parent  e915ac8a4224835185858e5553dbfab366edc094
arch/sparc: add absic support

Add support for building SPARC targeted toolchain.
With this patch I have built a working sparc V8 (32 toolchain).

Testing shows that not all gcc versions works well:
4.4.1            OK  (kernel builds and the final kernel can boot)
4.4.2            Not tested
4.4.3            Not tested
4.4.4            BAD (Kernel can build but fails during boot)
4.4.5            BAD (Kernel can build but fails during boot)
4.5.1            BAD (Build fails with a spill related ICE - http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35664)
4.5.2            OK  (kernel builds and boots)

I have successfully been using the 4.5.2 version for a few months.

This patch does not add support for the LEON variant.
That may come later.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
[yann.morin.1998@anciens.enib.fr: for 32-bit, default CT_TARGET_ARCH is OK]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

diff -r e915ac8a4224 -r c131e30363ee config/arch/sparc.in
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/config/arch/sparc.in	Sun Apr 03 18:22:00 2011 +0200
@@ -0,0 +1,13 @@
+# SPARC specific config options
+
+config ARCH_sparc
+    select ARCH_SUPPORTS_32
+    select ARCH_SUPPORTS_64
+    select ARCH_DEFAULT_32
+    select ARCH_USE_MMU
+    select ARCH_SUPPORT_CPU
+    select ARCH_SUPPORT_TUNE
+    help
+      The SUN SPARC architecture, as defined by:
+        32 bit: http://www.sparc.org/standards/V8.pdf
+        64 bit: http://www.sparc.org/standards/SPARCV9.pdf
diff -r e915ac8a4224 -r c131e30363ee scripts/build/arch/sparc.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/scripts/build/arch/sparc.sh	Sun Apr 03 18:22:00 2011 +0200
@@ -0,0 +1,8 @@
+# Compute sparc-specific values
+CT_DoArchTupleValues() {
+    # That's the only thing to override
+    if [ "${CT_ARCH_64}" = "y" ]; then
+        CT_TARGET_ARCH="${CT_ARCH}64"
+    fi
+
+}