doc: add arm64 toolchain names update instructions

The newer versions have an extra -none- in the name.

Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
Acked-by: Ruifeng Wang <ruifeng.wang@arm.com>

diff --git a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst
index f589b3b06ff8456ac88d267bafa98509da9b5ba8..d6dd6bb307b0694743b0275da47b82a8f9464ece 100644 (file)
--- a/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst
+++ b/doc/guides/linux_gsg/cross_build_dpdk_for_arm64.rst
@@ -130,6 +130,13 @@ However, the compiler/linker flags may be added to cross files under [properties
 Cross Compiling DPDK with GNU toolchain using Meson
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+.. note::
+
+   The names of GCC binaries in cross files differ from the downloaded ones,
+   which have an extra ``-none-`` in their name.
+   Please modify the cross file binaries accordingly
+   when using the downloaded cross compilers.
+
 To cross-compile DPDK on a desired target machine we can use the following
 command::
 
@@ -137,12 +144,13 @@ command::
    ninja -C cross-build
 
 For example if the target machine is aarch64 we can use the following
-command::
+command, provided the cross file has been modified accordingly::
 
    meson aarch64-build-gcc --cross-file config/arm/arm64_armv8_linux_gcc
    ninja -C aarch64-build-gcc
 
-If the target machine is aarch32 we can use the following command::
+If the target machine is aarch32 we can use the following command,
+provided the cross file has been modified accordingly::
 
    meson aarch32-build --cross-file config/arm/arm32_armv8_linux_gcc
    ninja -C aarch32-build