cmake: arm64: Bail out if the old SDK is used

After the ARM/ARM64 split the SDK 0.12.4 is needed to be able to compile
the ARM64 arch code. Bail out if an old SDK is detected at compile time.

Also change the minimal supported Zephyr SDK to v0.12, as agreed in
Toolchain WG.  Main reason is added compiler architectures and important
inclusion of fixes, for example qemu and arm fixes for veneers (TFM)

Signed-off-by: Carlo Caione <[email protected]>

Author: carlocaione

cmake/verify-toolchain.cmake

@@ -16,7 +16,11 @@
 # FORMAT=json: Print the output as a json formatted string, useful for Python
 
 # This is the minimum required Zephyr-SDK version which supports CMake package
-set(TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION 0.11.3)
+if("${ARCH}" STREQUAL "arm64")
+  set(TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION 0.12.4)
+else()
+  set(TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION 0.12)
+endif()
 
 # Set internal variables if set in environment.
 if(NOT DEFINED ZEPHYR_TOOLCHAIN_VARIANT)
@@ -67,12 +71,12 @@ if(("zephyr" STREQUAL ${ZEPHYR_TOOLCHAIN_VARIANT}) OR
     # To support Zephyr SDK tools (DTC, and other tools) with 3rd party toolchains
     # then we keep track of current toolchain variant.
     set(ZEPHYR_CURRENT_TOOLCHAIN_VARIANT ${ZEPHYR_TOOLCHAIN_VARIANT})
-    find_package(Zephyr-sdk ${TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION} QUIET HINTS $ENV{ZEPHYR_SDK_INSTALL_DIR})
+    find_package(Zephyr-sdk ${TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION} REQUIRED QUIET HINTS $ENV{ZEPHYR_SDK_INSTALL_DIR})
     if(DEFINED ZEPHYR_CURRENT_TOOLCHAIN_VARIANT)
       set(ZEPHYR_TOOLCHAIN_VARIANT ${ZEPHYR_CURRENT_TOOLCHAIN_VARIANT})
     endif()
   else()
-    find_package(Zephyr-sdk ${TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION} QUIET PATHS
+    find_package(Zephyr-sdk ${TOOLCHAIN_ZEPHYR_MINIMUM_REQUIRED_VERSION} REQUIRED QUIET PATHS
                  /usr
 		 /usr/local
 		 /opt