3 files changed, 39 insertions, 4 deletions
diff --git a/scripts/build/arch/arc.sh b/scripts/build/arch/arc.sh
new file mode 100644
index 0000000..2b48e4b
--- /dev/null
+++ b/scripts/build/arch/arc.sh
@@ -0,0 +1,34 @@
+# Compute ARC-specific values
+
+CT_DoArchTupleValues() {
+    # The architecture part of the tuple:
+    CT_TARGET_ARCH="${CT_ARCH}${CT_ARCH_SUFFIX:-${target_endian_eb}}"
+
+    # The system part of the tuple:
+    case "${CT_LIBC}" in
+        glibc)    CT_TARGET_SYS=gnu;;
+        uClibc)   CT_TARGET_SYS=uclibc;;
+    esac
+}
+
+CT_DoArchUClibcConfig() {
+    local cfg="${1}"
+
+    CT_DoArchUClibcSelectArch "${cfg}" "arc"
+}
+
+CT_DoArchUClibcCflags() {
+    local cfg="${1}"
+    local cflags="${2}"
+    local f
+
+    CT_KconfigDisableOption "CONFIG_ARC_HAS_ATOMICS" "${cfg}"
+
+    for f in ${cflags}; do
+        case "${f}" in
+            -matomic)
+                CT_KconfigEnableOption "CONFIG_ARC_HAS_ATOMICS" "${cfg}"
+                ;;
+        esac
+    done
+}
diff --git a/scripts/build/arch/arm.sh b/scripts/build/arch/arm.sh
index 7433c92..4873df1 100644
--- a/scripts/build/arch/arm.sh
+++ b/scripts/build/arch/arm.sh
@@ -96,6 +96,7 @@ CT_DoArchUClibcCflags() {
         case "${f}" in
             -mthumb)
                 CT_KconfigEnableOption "COMPILE_IN_THUMB_MODE" "${cfg}"
+                CT_KconfigDisableOption "UCLIBC_HAS_CONTEXT_FUNCS" "${cfg}"
                 ;;
             -marm)
                 CT_KconfigDisableOption "COMPILE_IN_THUMB_MODE" "${cfg}"
diff --git a/scripts/build/arch/powerpc.sh b/scripts/build/arch/powerpc.sh
index 52f3f8b..36a727a 100644
--- a/scripts/build/arch/powerpc.sh
+++ b/scripts/build/arch/powerpc.sh
@@ -12,18 +12,18 @@ CT_DoArchTupleValues () {
             ;;
         spe)
             case "${CT_LIBC}" in
-                none|newlib)    CT_TARGET_SYS="spe";;
+                none|newlib)    CT_TARGET_SYS="elfspe";;
                 *glibc)         CT_TARGET_SYS="gnuspe";;
                 uClibc)         CT_TARGET_SYS="uclibcgnuspe";;
             esac
             ;;
     esac
 
-    # Add extra flags for SPE if needed
+    # Add extra flags for SPE if needed. SPE is obsolete in GCC8.
     if [ "${CT_ARCH_powerpc_ABI_SPE}" = "y" ]; then
         CT_ARCH_TARGET_CFLAGS="-mabi=spe -mspe"
-        CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double"
-        CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double"
+        CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double --enable-obsolete"
+        CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double --enable-obsolete"
     fi
 }