Arm backend: Update gcc to 15.2

Signed-off-by: per.held@arm.com
Change-Id: I5c3e9388f3a6d87fd987811d7dc04e9ef85cb69d

Author: perheld

backends/arm/scripts/toolchain_utils.sh

@@ -22,20 +22,20 @@ source "${script_dir}/utils.sh"
 
 function gcc_select_toolchain() {
     if [[ "${ARCH}" == "x86_64" ]] ; then
-        toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi.tar.xz"
-        toolchain_dir="arm-gnu-toolchain-13.3.rel1-x86_64-arm-none-eabi"
-        toolchain_md5_checksum="0601a9588bc5b9c99ad2b56133b7f118"
+        toolchain_url="https://developer.arm.com/-/media/Files/downloads/gnu/15.2.rel1/binrel/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi.tar.xz"
+        toolchain_dir="arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi"
+        toolchain_md5_checksum="da62bef8821e7fc2a9b5d023871036e0"
         toolchain_archive="${toolchain_dir}.tar.xz"
     elif [[ "${ARCH}" == "aarch64" ]] || [[ "${ARCH}" == "arm64" ]] ; then
         if [[ "${OS}" == "Darwin" ]]; then
-            toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-darwin-arm64-arm-none-eabi.tar.xz"
-            toolchain_dir="arm-gnu-toolchain-13.3.rel1-darwin-arm64-arm-none-eabi"
-            toolchain_md5_checksum="f1c18320bb3121fa89dca11399273f4e"
+            toolchain_url="https://developer.arm.com/-/media/Files/downloads/gnu/15.2.rel1/binrel/arm-gnu-toolchain-15.2.rel1-darwin-arm64-arm-none-eabi.tar.xz"
+            toolchain_dir="arm-gnu-toolchain-15.2.rel1-darwin-arm64-arm-none-eabi"
+            toolchain_md5_checksum="e91fd6348ba0f3e5ec35eeba1ad7e2b8"
             toolchain_archive="${toolchain_dir}.tar.xz"
         elif [[ "${OS}" == "Linux" ]]; then
-            toolchain_url="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/13.3.rel1/binrel/arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi.tar.xz"
-            toolchain_dir="arm-gnu-toolchain-13.3.rel1-aarch64-arm-none-eabi"
-            toolchain_md5_checksum="303102d97b877ebbeb36b3158994b218"
+            toolchain_url="https://developer.arm.com/-/media/Files/downloads/gnu/15.2.rel1/binrel/arm-gnu-toolchain-15.2.rel1-aarch64-arm-none-eabi.tar.xz"
+            toolchain_dir="arm-gnu-toolchain-15.2.rel1-aarch64-arm-none-eabi"
+            toolchain_md5_checksum="458c5d9b362726c9ac20c96f1894ae13"
             toolchain_archive="${toolchain_dir}.tar.xz"
         fi
     else

third-party/CMakeLists.txt

@@ -147,6 +147,13 @@ set(FLATCC_INSTALL
     CACHE BOOL ""
 )
 add_subdirectory(flatcc)
+if(CMAKE_C_COMPILER_ID STREQUAL "GNU"
+   AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 15
+)
+  target_compile_options(
+    flatccrt PRIVATE -Wno-error=unterminated-string-initialization
+  )
+endif()
 # Unfortunately flatcc writes libs directly in to the source tree [1]. So to
 # ensure the target lib is created last, force flatcc_cli to build first.
 #