Added a new script to do chroot bootstrapping.
This script is used to bootstrap-build the host compiler and then all
host packages, including all toolchain for all boards.
Bootstrapping the chroot is a mandatory step before we roll out any
compiler changes. Currently we have no script to formalize this process.
The basic idea of this script is to populate a user-provided gcc tree
onto a local branch in chromeos/src/third_party/gcc git and then
modify the active ebuild file to pick up this specific gcc tree.
The usage of this script -
Usage: bootstrap_compiler.py [options]
Options:
-h, --help show this help message and exit
-c CHROMEOS_ROOT, --chromeos_root=CHROMEOS_ROOT
ChromeOs root dir.
-b BRANCH, --branch=BRANCH
The branch to test against. This branch must be a
local branch inside "src/third_party/gcc". Notice,
this must not be used with "--gcc".
-g GCC_DIR, --gcc_dir=GCC_DIR
Use a local gcc tree to do bootstrapping. Notice, this
must not be used with "--branch".
--fixperm Fix the (notorious) permission error while trying to
bootstrap the chroot. Note this takes an extra 10-15
minutes and is only needed once per chromiumos tree.
--setup_gcc_ebuild_file_only
Setup gcc ebuild file to pick up the branch (--branch)
or user gcc source (--gcc_dir) and exit. Keep chroot
as is.
--reset_gcc_ebuild_file
Reset the modification that is done by this
script.Note, when this script is running, it will
modify the active gcc ebuild file. Use this option to
reset (what this script has done) and exit.
Change-Id: Iab07d60c3ccb2e1b8feda9df0fb13d5474a50cbe
Reviewed-on: https://gerrit-int.chromium.org/34165
Reviewed-by: Luis Lozano <llozano@chromium.org>
Commit-Queue: Han Shen <shenhan@google.com>
Tested-by: Han Shen <shenhan@google.com>
2 files changed