Further expand the architecture-specific function: add CT_KERNEL_ARCH building.

arch/arm/functions

@@ -11,6 +11,4 @@ CT_DoArchValues() {
         uClibc,)    CT_TARGET_SYS=uclibc;;
         uClibc,y)   CT_TARGET_SYS=uclibcgnueabi;;
     esac
-
-    # The endianness option default value is OK
 }

arch/ia64/functions

@@ -3,8 +3,4 @@
 CT_DoArchValues() {
     # The architecture part of the tuple:
     CT_TARGET_ARCH="${CT_ARCH}"
-
-    # The system part of the tuple default value is OK.
-
-    # The endianness option default value is OK.
 }

arch/mips/functions

@@ -3,8 +3,4 @@
 CT_DoArchValues() {
     # The architecture part of the tuple:
     CT_TARGET_ARCH="${CT_ARCH}${target_endian_el}"
-
-    # The system part of the tuple default value is OK.
-
-    # The endianness option default value is OK.
 }

arch/x86/functions

@@ -17,7 +17,6 @@ CT_DoArchValues() {
         *)                            CT_TARGET_ARCH=i586;;
     esac
 
-    # The system part of the tuple default value is OK.
-
-    # The endianness option default value is OK.
+    # The kernel ARCH:
+    CT_KERNEL_ARCH=i386
 }

arch/x86_64/functions

@@ -3,8 +3,4 @@
 CT_DoArchValues() {
     # The architecture part of the tuple:
     CT_TARGET_ARCH="${CT_ARCH}"
-
-    # The system part of the tuple default value is OK.
-
-    # The endianness option default value is OK.
 }

docs/overview.txt

@@ -499,6 +499,14 @@ The "functions" file API:
        the architecture part of the target tuple.
        Eg.: "armeb" for big endian ARM
             "i386" for an i386
+   + the environment variable CT_KERNEL_ARCH
+     - optional
+     - contains:
+       the architecture name as understandable by the Linux kernel build
+       system.
+       Eg.: "arm" for an ARM
+            "powerpc" for a PowerPC
+            "i386" for an x86
    + provides:
      - the environment variable CT_TARGET_ARCH
      - optional

scripts/crosstool.sh

@@ -304,13 +304,6 @@ if [ -z "${CT_RESTART}" ]; then
     # Ha. cygwin host have an .exe suffix (extension) for executables.
     [ "${CT_KERNEL}" = "cygwin" ] && EXEEXT=".exe" || EXEEXT=""
 
-    # Transform the ARCH into a kernel-understandable ARCH
-    case "${CT_ARCH}" in
-        x86) CT_KERNEL_ARCH=i386;;
-        ppc) CT_KERNEL_ARCH=powerpc;;
-        *)   CT_KERNEL_ARCH="${CT_ARCH}";;
-    esac
-
     # Build up the TARGET_CFLAGS from user-provided options
     # Override with user-specified CFLAGS
     [ -n "${CT_ARCH_CPU}" ]  && CT_TARGET_CFLAGS="-mcpu=${CT_ARCH_CPU} ${CT_TARGET_CFLAGS}"

scripts/functions

@@ -506,6 +506,9 @@ CT_DoBuildTargetTuple() {
         uClibc) CT_TARGET_SYS=uclibc;;
     esac
 
+    # Transform the ARCH into a kernel-understandable ARCH
+    CT_KERNEL_ARCH="${CT_ARCH}"
+
     # Call the architecture specific settings
     CT_DoArchValues