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therubyracer/ext/v8/upstream/scons/engine/SCons/Tool/MSCommon/vc.py
Charles Lowell 205c52c5bf import v8 source 
move v8 src to google dir

moving v8 source into main extension

move google upstream source dir into v8 ext dir

include v8 library in generated bundle

prep for 0.4.7

roll the upstream build into the main extension build

Documentation was confusing the gem packager.

simplify build instructions with bundled v8.

Only install scons and build v8 if it has not been built already.

Missing CVS.py from the scons library due to ignore patterns.

Don't need libv8 anymore, only python 2.5 which is required to build it.
2010-02-04 13:41:54 -06:00

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#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# TODO:
# * supported arch for versions: for old versions of batch file without
# argument, giving bogus argument cannot be detected, so we have to hardcode
# this here
# * print warning when msvc version specified but not found
# * find out why warning do not print
# * test on 64 bits XP + VS 2005 (and VS 6 if possible)
# * SDK
# * Assembly
__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py 4629 2010/01/17 22:23:21 scons"
__doc__ = """Module for Visual C/C++ detection and configuration.
"""
import SCons.compat
import os
import platform
import SCons.Warnings
import common
debug = common.debug
class VisualCException(Exception):
pass
class UnsupportedVersion(VisualCException):
pass
class UnsupportedArch(VisualCException):
pass
class MissingConfiguration(VisualCException):
pass
class NoVersionFound(VisualCException):
pass
class BatchFileExecutionError(VisualCException):
pass
# Dict to 'canonalize' the arch
_ARCH_TO_CANONICAL = {
"x86": "x86",
"amd64": "amd64",
"i386": "x86",
"emt64": "amd64",
"x86_64": "amd64",
"itanium": "ia64",
"ia64": "ia64",
}
# Given a (host, target) tuple, return the argument for the bat file. Both host
# and targets should be canonalized.
_HOST_TARGET_ARCH_TO_BAT_ARCH = {
("x86", "x86"): "x86",
("x86", "amd64"): "x86_amd64",
("amd64", "amd64"): "amd64",
("amd64", "x86"): "x86",
("x86", "ia64"): "x86_ia64"
}
def get_host_target(env):
host_platform = env.get('HOST_ARCH')
if not host_platform:
host_platform = platform.machine()
# TODO(2.5): the native Python platform.machine() function returns
# '' on all Python versions before 2.6, after which it also uses
# PROCESSOR_ARCHITECTURE.
if not host_platform:
host_platform = os.environ.get('PROCESSOR_ARCHITECTURE', '')
target_platform = env.get('TARGET_ARCH')
if not target_platform:
target_platform = host_platform
try:
host = _ARCH_TO_CANONICAL[host_platform]
except KeyError, e:
msg = "Unrecognized host architecture %s"
raise ValueError(msg % repr(host_platform))
try:
target = _ARCH_TO_CANONICAL[target_platform]
except KeyError, e:
raise ValueError("Unrecognized target architecture %s" % target_platform)
return (host, target)
_VCVER = ["10.0", "9.0", "8.0", "7.1", "7.0", "6.0"]
_VCVER_TO_PRODUCT_DIR = {
'10.0': [
r'Microsoft\VisualStudio\10.0\Setup\VC\ProductDir'],
'9.0': [
r'Microsoft\VisualStudio\9.0\Setup\VC\ProductDir',
r'Microsoft\VCExpress\9.0\Setup\VC\ProductDir'],
'8.0': [
r'Microsoft\VisualStudio\8.0\Setup\VC\ProductDir',
r'Microsoft\VCExpress\8.0\Setup\VC\ProductDir'],
'7.1': [
r'Microsoft\VisualStudio\7.1\Setup\VC\ProductDir'],
'7.0': [
r'Microsoft\VisualStudio\7.0\Setup\VC\ProductDir'],
'6.0': [
r'Microsoft\VisualStudio\6.0\Setup\Microsoft Visual C++\ProductDir']
}
def msvc_version_to_maj_min(msvc_version):
t = msvc_version.split(".")
if not len(t) == 2:
raise ValueError("Unrecognized version %s" % msvc_version)
try:
maj = int(t[0])
min = int(t[1])
return maj, min
except ValueError, e:
raise ValueError("Unrecognized version %s" % msvc_version)
def is_host_target_supported(host_target, msvc_version):
"""Return True if the given (host, target) tuple is supported given the
msvc version.
Parameters
----------
host_target: tuple
tuple of (canonalized) host-target, e.g. ("x86", "amd64") for cross
compilation from 32 bits windows to 64 bits.
msvc_version: str
msvc version (major.minor, e.g. 10.0)
Note
----
This only check whether a given version *may* support the given (host,
target), not that the toolchain is actually present on the machine.
"""
# We assume that any Visual Studio version supports x86 as a target
if host_target[1] != "x86":
maj, min = msvc_version_to_maj_min(msvc_version)
if maj < 8:
return False
return True
def find_vc_pdir(msvc_version):
"""Try to find the product directory for the given
version.
Note
----
If for some reason the requested version could not be found, an
exception which inherits from VisualCException will be raised."""
root = 'Software\\'
if common.is_win64():
root = root + 'Wow6432Node\\'
try:
hkeys = _VCVER_TO_PRODUCT_DIR[msvc_version]
except KeyError:
debug("Unknown version of MSVC: %s" % msvc_version)
raise UnsupportedVersion("Unknown version %s" % msvc_version)
for key in hkeys:
key = root + key
try:
comps = common.read_reg(key)
except WindowsError, e:
debug('find_vc_dir(): no VC registry key %s' % repr(key))
else:
debug('find_vc_dir(): found VC in registry: %s' % comps)
if os.path.exists(comps):
return comps
else:
debug('find_vc_dir(): reg says dir is %s, but it does not exist. (ignoring)'\
% comps)
raise MissingConfiguration("registry dir %s not found on the filesystem" % comps)
return None
def find_batch_file(msvc_version):
pdir = find_vc_pdir(msvc_version)
if pdir is None:
raise NoVersionFound("No version of Visual Studio found")
vernum = float(msvc_version)
if 7 <= vernum < 8:
pdir = os.path.join(pdir, os.pardir, "Common7", "Tools")
batfilename = os.path.join(pdir, "vsvars32.bat")
elif vernum < 7:
pdir = os.path.join(pdir, "Bin")
batfilename = os.path.join(pdir, "vcvars32.bat")
else: # >= 8
batfilename = os.path.join(pdir, "vcvarsall.bat")
if os.path.exists(batfilename):
return batfilename
else:
debug("Not found: %s" % batfilename)
return None
__INSTALLED_VCS_RUN = None
def cached_get_installed_vcs():
global __INSTALLED_VCS_RUN
if __INSTALLED_VCS_RUN is None:
ret = get_installed_vcs()
__INSTALLED_VCS_RUN = ret
return __INSTALLED_VCS_RUN
def get_installed_vcs():
installed_versions = []
for ver in _VCVER:
debug('trying to find VC %s' % ver)
try:
if find_vc_pdir(ver):
debug('found VC %s' % ver)
installed_versions.append(ver)
else:
debug('find_vc_pdir return None for ver %s' % ver)
except VisualCException, e:
debug('did not find VC %s: caught exception %s' % (ver, str(e)))
return installed_versions
def reset_installed_vcs():
"""Make it try again to find VC. This is just for the tests."""
__INSTALLED_VCS_RUN = None
def script_env(script, args=None):
stdout = common.get_output(script, args)
# Stupid batch files do not set return code: we take a look at the
# beginning of the output for an error message instead
olines = stdout.splitlines()
if olines[0].startswith("The specified configuration type is missing"):
raise BatchFileExecutionError("\n".join(olines[:2]))
return common.parse_output(stdout)
def get_default_version(env):
debug('get_default_version()')
msvc_version = env.get('MSVC_VERSION')
msvs_version = env.get('MSVS_VERSION')
if msvs_version and not msvc_version:
SCons.Warnings.warn(
SCons.Warnings.DeprecatedWarning,
"MSVS_VERSION is deprecated: please use MSVC_VERSION instead ")
return msvs_version
elif msvc_version and msvs_version:
if not msvc_version == msvs_version:
SCons.Warnings.warn(
SCons.Warnings.VisualVersionMismatch,
"Requested msvc version (%s) and msvs version (%s) do " \
"not match: please use MSVC_VERSION only to request a " \
"visual studio version, MSVS_VERSION is deprecated" \
% (msvc_version, msvs_version))
return msvs_version
if not msvc_version:
installed_vcs = cached_get_installed_vcs()
debug('installed_vcs:%s' % installed_vcs)
if not installed_vcs:
msg = 'No installed VCs'
debug('msv %s\n' % repr(msg))
SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, msg)
return None
msvc_version = installed_vcs[0]
debug('msvc_setup_env: using default installed MSVC version %s\n' % repr(msvc_version))
return msvc_version
def msvc_setup_env_once(env):
try:
has_run = env["MSVC_SETUP_RUN"]
except KeyError:
has_run = False
if not has_run:
msvc_setup_env(env)
env["MSVC_SETUP_RUN"] = True
def msvc_setup_env(env):
debug('msvc_setup_env()')
version = get_default_version(env)
if version is None:
warn_msg = "No version of Visual Studio compiler found - C/C++ " \
"compilers most likely not set correctly"
SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
return None
debug('msvc_setup_env: using specified MSVC version %s\n' % repr(version))
# XXX: we set-up both MSVS version for backward
# compatibility with the msvs tool
env['MSVC_VERSION'] = version
env['MSVS_VERSION'] = version
env['MSVS'] = {}
try:
script = find_batch_file(version)
except VisualCException, e:
msg = str(e)
debug('Caught exception while looking for batch file (%s)' % msg)
warn_msg = "VC version %s not installed. " + \
"C/C++ compilers are most likely not set correctly.\n" + \
" Installed versions are: %s"
warn_msg = warn_msg % (version, cached_get_installed_vcs())
SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
return None
use_script = env.get('MSVC_USE_SCRIPT', True)
if SCons.Util.is_String(use_script):
debug('use_script 1 %s\n' % repr(use_script))
d = script_env(use_script)
elif use_script:
host_platform, target_platform = get_host_target(env)
host_target = (host_platform, target_platform)
if not is_host_target_supported(host_target, version):
warn_msg = "host, target = %s not supported for MSVC version %s" % \
(host_target, version)
SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
arg = _HOST_TARGET_ARCH_TO_BAT_ARCH[host_target]
debug('use_script 2 %s, args:%s\n' % (repr(script), arg))
try:
d = script_env(script, args=arg)
except BatchFileExecutionError, e:
msg = "MSVC error while executing %s with args %s (error was %s)" % \
(script, arg, str(e))
raise SCons.Errors.UserError(msg)
else:
debug('MSVC_USE_SCRIPT set to False')
warn_msg = "MSVC_USE_SCRIPT set to False, assuming environment " \
"set correctly."
SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
return None
for k, v in d.items():
env.PrependENVPath(k, v, delete_existing=True)
def msvc_exists(version=None):
vcs = cached_get_installed_vcs()
if version is None:
return len(vcs) > 0
return version in vcs
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