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# Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
Import('env')
if not env.Dir('$CHROME_SRC_DIR/v8').exists():
Return()
# Grab the -j flag from the outer environment, if available.
try:
cpus = env.GetOption('num_jobs')
cpu_flag = ' -j%d' % cpus
except AttributeError:
cpu_flag = ''
# The v8 build script wants a 'debug'/'release' string to tell it whether
# to build optimized. Convert our build flags into that form.
mode = 'release'
if env['TARGET_DEBUG']:
mode = 'debug'
env = env.Clone(
V8_MODE = mode,
V8_MODE_DIR = '$V8_DIR/obj/$V8_MODE',
V8_SCONS_COM = '$PYTHON $SCONS $SCONSFLAGS mode=$V8_MODE',
SCONS='$CHROME_SRC_DIR/third_party/scons/scons.py',
SCONSFLAGS = ('-Q '
'-C $OBJ_ROOT/v8 '
'-Y $CHROME_SRC_DIR/v8 '
'--warn=no-deprecated '
'--warn=no-no-parallel-support' + cpu_flag),
)
# Rather than build v8 with our own commands, we just shell out to v8's
# own SCons-based build, since their build system is complicated.
# This SConscript just declares dependencies on the outputs of that build.
#
# Arrange to make sure the build directory exists, since the subsidiary
# SCons we invoke will chdir there of its own accord.
if not os.path.exists(env.Dir('$OBJ_ROOT/v8').abspath):
Mkdir(env.Dir('$OBJ_ROOT/v8').abspath)
# v8 builds all outputs "foo" instead as "foo_g" in debug mode.
binsuffix = ''
if env['TARGET_DEBUG']:
binsuffix = '_g'
v8_scons_targets_off = [
'$V8_DIR/shell%s${PROGSUFFIX}' % binsuffix,
'$V8_DIR/${LIBPREFIX}v8%s${LIBSUFFIX}' % binsuffix,
'$V8_MODE_DIR/mksnapshot${PROGSUFFIX}',
'$V8_MODE_DIR/libraries${OBJSUFFIX}',
'$V8_MODE_DIR/snapshot-empty${OBJSUFFIX}',
]
v8_scons_targets_on = [
'$V8_MODE_DIR/libraries-empty${OBJSUFFIX}',
'$V8_MODE_DIR/snapshot${OBJSUFFIX}',
]
if env['PLATFORM'] == 'win32':
v8_scons_targets_off.extend([
env.File('$V8_DIR/vc80.pdb')
])
v8 = env.Command(v8_scons_targets_off + v8_scons_targets_on,
[],
['$V8_SCONS_COM snapshot=off sample=shell',
'$V8_SCONS_COM snapshot=on ${TARGETS[-%d:].abspath}'
% len(v8_scons_targets_on)])
env.AlwaysBuild(v8)
# Tell our SCons invocation to *not* delete v8.lib and the other targets
# before building them, so the subsidiary v8 SCons call doesn't always
# rebuild them (thereby causing us to always rebuild their dependents).
env.Precious(v8)
env.Install('$TARGET_ROOT', v8[0])
env.Install('$LIBS_DIR', v8[1])
env.Install('$V8_DIR', '$V8_MODE_DIR/snapshot-empty${OBJSUFFIX}')
# To satisfy tests expecting the following .exe name.
if env['PLATFORM'] == 'win32':
# TODO(evanm): this may be necessary on other platforms(?)
i = env.InstallAs('$TARGET_ROOT/v8_shell_sample${PROGSUFFIX}', v8[0])
env.ChromeStaticLibrary('v8_snapshot',
['$V8_MODE_DIR/libraries-empty${OBJSUFFIX}',
'$V8_MODE_DIR/snapshot${OBJSUFFIX}'])
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