Minor enhancement to build process notes for ARM platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166769 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/HowToBuildOnARM.rst b/docs/HowToBuildOnARM.rst
index 6f9ac4a..d786a7d 100644
--- a/docs/HowToBuildOnARM.rst
+++ b/docs/HowToBuildOnARM.rst
@@ -27,8 +27,21 @@
#. If you want to run ``make
check-all`` after building LLVM/Clang, to avoid false alarms (eg, ARCMT
- failure) please use the following configuration:
+ failure) please use at least the following configuration:
.. code-block:: bash
- $ ../$LLVM_SRC_DIR/configure --with-abi=aapcs
+ $ ../$LLVM_SRC_DIR/configure --with-abi=aapcs-vfp
+
+#. The most popular linaro/ubuntu OS's for ARM boards, eg, the
+ Pandaboard, have become hard-float platforms. The following set
+ of configuration options appears to be a good choice for this
+ platform:
+
+ .. code-block:: bash
+
+ ./configure --build=armv7l-unknown-linux-gnueabihf
+ --host=armv7l-unknown-linux-gnueabihf
+ --target=armv7l-unknown-linux-gnueabihf --with-cpu=cortex-a9
+ --with-float=hard --with-abi=aapcs-vfp --with-fpu=neon
+ --enable-targets=arm --disable-optimized --enable-assertions