ReleaseEngineering/How To/Clang update
Intro
Clang packages use tooltool to deploy itself run time. The binaries are hosted on relengweb1.dmz.scl3.mozilla.com (use your LDAP account) and accessible from http://runtime-binaries.pvt.build.mozilla.org/tooltool/.
Clang build is made by http://hg.mozilla.org/mozilla-central/file/tip/build/unix/build-clang/build-clang.py script. You may want to use this script to discover the recent used version of clang.
Compilation
MacOS X builders have everything installed to build clang.
Linux64 (Centos 6.2) needs the following packages installed:
yum install make gcc gcc-c++ mercurial subversion patch \ http://puppetagain.pub.build.mozilla.org/data/repos/yum/releng/public/CentOS/6/x86_64/gcc473_0moz1-4.7.3-0moz1.x86_64.rpm \ http://puppetagain.pub.build.mozilla.org/data/repos/yum/releng/public/CentOS/6/x86_64/mozilla-python27-2.7.3-1.el6.x86_64.rpm
Linux32 (Centos 6.2) needs the following packages installed:
yum install make gcc gcc-c++ mercurial subversion patch \ http://puppetagain.pub.build.mozilla.org/data/repos/yum/releng/public/CentOS/6/i386/gcc473_0moz1-4.7.3-0moz1.i686.rpm \ http://puppetagain.pub.build.mozilla.org/data/repos/yum/releng/public/CentOS/6/i386/mozilla-python27-2.7.3-1.el6.i686.rpm
Alternatively you can use vagrant with the following vagrant VMs:
Passwords for root and vagrant users are "vagrant". You can create your vagrant VMs similar to this (in 64bit or 32bit directory):
vagrant up # ignore timeout warnings vagrant ssh # use "vagrant" as a password
Note: The current vagrant image doesn't have the gcc 4.7 and python 2.7 packages installed, you need to install them first using yum (see above).
You also need to install the argparse package. In order to do that, run the following commands:
sudo yum install python-setuptools sudo easy_install argparse
To build clang clone mozilla-central and run the build script:
hg clone https://hg.mozilla.org/mozilla-central cd mozilla-central/build/unix/build-clang # adjust revision in build-clang.py if needed time PATH=/tools/python27/bin:$PATH /tools/python27/bin/python2.7 build-clang.py -c clang-trunk.json # go and drink something
Once the build is finished you can find 2 not tracked files (hg st) in the current directory. clang.manifest should be attached to the bug and $SHA512 should be uploaded to the tooltool server (see below).
