Changes between Version 14 and Version 15 of WebKitGTK/SpeedUpBuild

Timestamp:

Feb 11, 2015, 8:35:04 AM (10 years ago)

Author:

clopez@igalia.com

Comment:

--

WebKitGTK/SpeedUpBuild

@@ -291 +291 @@
 }}}
 
- * Make sure you integrate it seamlessly with ccache by defining the CCACHE_PREFIX variable:
-{{{
-#!sh
-$ export CCACHE_PREFIX=icecc
-}}}
-
- * Make sure you have your PATH properly configured:
-{{{
-#!sh
-$ export PATH=/usr/lib/ccache:$PATH
-}}}
-
- * You can increase the number of jobs setting the MAKE variable:
-{{{
-#!sh
-$ export MAKE="make -j12"
-}}}
 
  * You may want to restart the service after setting all the configuration appropriately:
@@ -326 +309 @@
 $ Tools/Scripts/build-webkit --gtk
 }}}
+
+
+=== icecc + ccache ===
+
+So far, this only works well when using as compiler GCC, with clangs gives problems.
+
+To use icecc and ccache together the steps are:
+
+1. Export the CCACHE_PREFIX variable:
+{{{
+#!sh
+$ export CCACHE_PREFIX=icecc
+}}}
+2. Set as first dir of your PATH the ccache dir.
+{{{
+#!sh
+$ export PATH="/usr/lib/ccache:${PATH}"
+}}}
+
+
+=== Tips for using icecc ===
+
+ * Increase the number of parallel jobs to the double or triple of your number of cores:
+{{{
+#!sh
+$ export NUMBER_OF_PROCESSORS="$(( $(nproc) * 3 ))"
+}}}
+
+ * To ensure that the slaves are going to use the exact same compiler version than your machine, send your toolchain to the build slaves:
+{{{
+#!sh
+export ICECC_VERSION="$(pwd)/$(icecc --build-native|tee /dev/stderr|grep creating|awk '{print $2}')"
+}}}
+
+
+=== using icecc with clang ===
+
+This are the steps to use icecc with clang (without ccache because it don't works so far)
+
+1. If you were using GCC previously, then start with a clean build.
+{{{
+#!sh
+rm -fr WebKitBuild/Release
+}}}
+2. Ensure that you have installed the symlinks to clang on the icecc dir
+{{{
+#!sh
+cd /usr/lib/icecc/bin
+sudo ln -s $(which icecc) clang
+sudo ln -s $(which icecc) clang++
+}}}
+3. Export the CC and CXX environment variables accordingly:
+{{{
+#!sh
+export CC=clang
+export CXX=clang++
+}}}
+4. Build a tgz with your clang toolchain:
+{{{
+#!sh
+export ICECC_VERSION="$(pwd)/$(/usr/lib/icecc/icecc-create-env --clang /usr/bin/clang /usr/lib/icecc/compilerwrapper|tee /dev/stderr|grep creating|awk '{print $2}')"
+}}}
+5. Export your PATH to include the icecc dir as first:
+{{{
+#!sh
+export PATH="/usr/lib/icecc/bin:${PATH}"
+}}}
+6. Ensure that the icecc daemon is running and start the compilation as usual.
+{{{
+#!sh
+Tools/Scripts/build-webkit --gtk
+}}}
+
 
 === icecc troubleshooting ===