Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/build/landmines.py b/build/landmines.py
new file mode 100755
index 0000000..bd1fb28
--- /dev/null
+++ b/build/landmines.py
@@ -0,0 +1,139 @@
+#!/usr/bin/env python
+# Copyright 2014 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+This script runs every build as a hook. If it detects that the build should
+be clobbered, it will touch the file <build_dir>/.landmine_triggered. The
+various build scripts will then check for the presence of this file and clobber
+accordingly. The script will also emit the reasons for the clobber to stdout.
+
+A landmine is tripped when a builder checks out a different revision, and the
+diff between the new landmines and the old ones is non-null. At this point, the
+build is clobbered.
+"""
+
+import difflib
+import logging
+import optparse
+import os
+import sys
+import subprocess
+import time
+
+import landmine_utils
+
+
+SRC_DIR = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+
+
+def get_target_build_dir(build_tool, target):
+ """
+ Returns output directory absolute path dependent on build and targets.
+ Examples:
+ r'c:\b\build\slave\win\build\src\out\Release'
+ '/mnt/data/b/build/slave/linux/build/src/out/Debug'
+ '/b/build/slave/ios_rel_device/build/src/xcodebuild/Release-iphoneos'
+
+ Keep this function in sync with tools/build/scripts/slave/compile.py
+ """
+ ret = None
+ if build_tool == 'xcode':
+ ret = os.path.join(SRC_DIR, 'xcodebuild', target)
+ elif build_tool in ['make', 'ninja', 'ninja-ios']: # TODO: Remove ninja-ios.
+ ret = os.path.join(SRC_DIR, 'out', target)
+ elif build_tool in ['msvs', 'vs', 'ib']:
+ ret = os.path.join(SRC_DIR, 'build', target)
+ else:
+ raise NotImplementedError('Unexpected GYP_GENERATORS (%s)' % build_tool)
+ return os.path.abspath(ret)
+
+
+def set_up_landmines(target, new_landmines):
+ """Does the work of setting, planting, and triggering landmines."""
+ out_dir = get_target_build_dir(landmine_utils.builder(), target)
+
+ landmines_path = os.path.join(out_dir, '.landmines')
+ if not os.path.exists(out_dir):
+ return
+
+ if not os.path.exists(landmines_path):
+ print "Landmines tracker didn't exists."
+
+ # FIXME(machenbach): Clobber deletes the .landmines tracker. Difficult
+ # to know if we are right after a clobber or if it is first-time landmines
+ # deployment. Also, a landmine-triggered clobber right after a clobber is
+ # not possible. Different clobber methods for msvs, xcode and make all
+ # have different blacklists of files that are not deleted.
+ if os.path.exists(landmines_path):
+ triggered = os.path.join(out_dir, '.landmines_triggered')
+ with open(landmines_path, 'r') as f:
+ old_landmines = f.readlines()
+ if old_landmines != new_landmines:
+ old_date = time.ctime(os.stat(landmines_path).st_ctime)
+ diff = difflib.unified_diff(old_landmines, new_landmines,
+ fromfile='old_landmines', tofile='new_landmines',
+ fromfiledate=old_date, tofiledate=time.ctime(), n=0)
+
+ with open(triggered, 'w') as f:
+ f.writelines(diff)
+ print "Setting landmine: %s" % triggered
+ elif os.path.exists(triggered):
+ # Remove false triggered landmines.
+ os.remove(triggered)
+ print "Removing landmine: %s" % triggered
+ with open(landmines_path, 'w') as f:
+ f.writelines(new_landmines)
+
+
+def process_options():
+ """Returns a list of landmine emitting scripts."""
+ parser = optparse.OptionParser()
+ parser.add_option(
+ '-s', '--landmine-scripts', action='append',
+ default=[os.path.join(SRC_DIR, 'build', 'get_landmines.py')],
+ help='Path to the script which emits landmines to stdout. The target '
+ 'is passed to this script via option -t. Note that an extra '
+ 'script can be specified via an env var EXTRA_LANDMINES_SCRIPT.')
+ parser.add_option('-v', '--verbose', action='store_true',
+ default=('LANDMINES_VERBOSE' in os.environ),
+ help=('Emit some extra debugging information (default off). This option '
+ 'is also enabled by the presence of a LANDMINES_VERBOSE environment '
+ 'variable.'))
+
+ options, args = parser.parse_args()
+
+ if args:
+ parser.error('Unknown arguments %s' % args)
+
+ logging.basicConfig(
+ level=logging.DEBUG if options.verbose else logging.ERROR)
+
+ extra_script = os.environ.get('EXTRA_LANDMINES_SCRIPT')
+ if extra_script:
+ return options.landmine_scripts + [extra_script]
+ else:
+ return options.landmine_scripts
+
+
+def main():
+ landmine_scripts = process_options()
+
+ if landmine_utils.builder() in ('dump_dependency_json', 'eclipse'):
+ return 0
+
+ landmines = []
+ for s in landmine_scripts:
+ proc = subprocess.Popen([sys.executable, s], stdout=subprocess.PIPE)
+ output, _ = proc.communicate()
+ landmines.extend([('%s\n' % l.strip()) for l in output.splitlines()])
+
+ for target in ('Debug', 'Release'):
+ set_up_landmines(target, landmines)
+
+ return 0
+
+
+if __name__ == '__main__':
+ sys.exit(main())