877 lines
32 KiB
Python
877 lines
32 KiB
Python
# -*- mode:python -*-
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# Copyright (c) 2004-2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Steve Reinhardt
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###################################################
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#
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# SCons top-level build description (SConstruct) file.
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#
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# While in this directory ('m5'), just type 'scons' to build the default
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# configuration (see below), or type 'scons build/<CONFIG>/<binary>'
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# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for
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# the optimized full-system version).
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#
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# You can build M5 in a different directory as long as there is a
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# 'build/<CONFIG>' somewhere along the target path. The build system
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# expects that all configs under the same build directory are being
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# built for the same host system.
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#
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# Examples:
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#
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# The following two commands are equivalent. The '-u' option tells
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# scons to search up the directory tree for this SConstruct file.
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# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug
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# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug
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#
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# The following two commands are equivalent and demonstrate building
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# in a directory outside of the source tree. The '-C' option tells
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# scons to chdir to the specified directory to find this SConstruct
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# file.
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# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug
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# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug
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#
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# You can use 'scons -H' to print scons options. If you're in this
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# 'm5' directory (or use -u or -C to tell scons where to find this
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# file), you can use 'scons -h' to print all the M5-specific build
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# options as well.
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#
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###################################################
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import sys
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import os
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import re
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from os.path import isdir, isfile, join as joinpath
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import SCons
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# Check for recent-enough Python and SCons versions. If your system's
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# default installation of Python is not recent enough, you can use a
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# non-default installation of the Python interpreter by either (1)
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# rearranging your PATH so that scons finds the non-default 'python'
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# first or (2) explicitly invoking an alternative interpreter on the
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# scons script, e.g., "/usr/local/bin/python2.4 `which scons` [args]".
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EnsurePythonVersion(2,4)
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# Import subprocess after we check the version since it doesn't exist in
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# Python < 2.4.
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import subprocess
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# helper function: compare arrays or strings of version numbers.
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# E.g., compare_version((1,3,25), (1,4,1)')
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# returns -1, 0, 1 if v1 is <, ==, > v2
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def compare_versions(v1, v2):
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def make_version_list(v):
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if isinstance(v, (list,tuple)):
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return v
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elif isinstance(v, str):
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return map(lambda x: int(re.match('\d+', x).group()), v.split('.'))
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else:
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raise TypeError
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v1 = make_version_list(v1)
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v2 = make_version_list(v2)
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# Compare corresponding elements of lists
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for n1,n2 in zip(v1, v2):
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if n1 < n2: return -1
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if n1 > n2: return 1
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# all corresponding values are equal... see if one has extra values
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if len(v1) < len(v2): return -1
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if len(v1) > len(v2): return 1
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return 0
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# SCons version numbers need special processing because they can have
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# charecters and an release date embedded in them. This function does
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# the magic to extract them in a similar way to the SCons internal function
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# function does and then checks that the current version is not contained in
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# a list of version tuples (bad_ver_strs)
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def CheckSCons(bad_ver_strs):
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def scons_ver(v):
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num_parts = v.split(' ')[0].split('.')
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major = int(num_parts[0])
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minor = int(re.match('\d+', num_parts[1]).group())
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rev = 0
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rdate = 0
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if len(num_parts) > 2:
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try: rev = int(re.match('\d+', num_parts[2]).group())
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except: pass
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rev_parts = num_parts[2].split('d')
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if len(rev_parts) > 1:
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rdate = int(re.match('\d+', rev_parts[1]).group())
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return (major, minor, rev, rdate)
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sc_ver = scons_ver(SCons.__version__)
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for bad_ver in bad_ver_strs:
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bv = (scons_ver(bad_ver[0]), scons_ver(bad_ver[1]))
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if compare_versions(sc_ver, bv[0]) != -1 and\
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compare_versions(sc_ver, bv[1]) != 1:
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print "The version of SCons that you have installed: ", SCons.__version__
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print "has a bug that prevents it from working correctly with M5."
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print "Please install a version NOT contained within the following",
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print "ranges (inclusive):"
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for bad_ver in bad_ver_strs:
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print " %s - %s" % bad_ver
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Exit(2)
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CheckSCons((
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# We need a version that is 0.96.91 or newer
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('0.0.0', '0.96.90'),
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))
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# The absolute path to the current directory (where this file lives).
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ROOT = Dir('.').abspath
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# Path to the M5 source tree.
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SRCDIR = joinpath(ROOT, 'src')
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# tell python where to find m5 python code
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sys.path.append(joinpath(ROOT, 'src/python'))
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def check_style_hook(ui):
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ui.readconfig(joinpath(ROOT, '.hg', 'hgrc'))
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style_hook = ui.config('hooks', 'pretxncommit.style', None)
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if not style_hook:
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print """\
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You're missing the M5 style hook.
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Please install the hook so we can ensure that all code fits a common style.
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All you'd need to do is add the following lines to your repository .hg/hgrc
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or your personal .hgrc
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----------------
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[extensions]
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style = %s/util/style.py
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[hooks]
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pretxncommit.style = python:style.check_whitespace
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""" % (ROOT)
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sys.exit(1)
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if ARGUMENTS.get('IGNORE_STYLE') != 'True' and isdir(joinpath(ROOT, '.hg')):
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try:
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from mercurial import ui
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check_style_hook(ui.ui())
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except ImportError:
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pass
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###################################################
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#
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# Figure out which configurations to set up based on the path(s) of
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# the target(s).
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#
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###################################################
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# Find default configuration & binary.
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Default(os.environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug'))
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# helper function: find last occurrence of element in list
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def rfind(l, elt, offs = -1):
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for i in range(len(l)+offs, 0, -1):
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if l[i] == elt:
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return i
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raise ValueError, "element not found"
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# Each target must have 'build' in the interior of the path; the
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# directory below this will determine the build parameters. For
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# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we
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# recognize that ALPHA_SE specifies the configuration because it
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# follow 'build' in the bulid path.
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# Generate absolute paths to targets so we can see where the build dir is
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if COMMAND_LINE_TARGETS:
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# Ask SCons which directory it was invoked from
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launch_dir = GetLaunchDir()
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# Make targets relative to invocation directory
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abs_targets = map(lambda x: os.path.normpath(joinpath(launch_dir, str(x))),
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COMMAND_LINE_TARGETS)
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else:
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# Default targets are relative to root of tree
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abs_targets = map(lambda x: os.path.normpath(joinpath(ROOT, str(x))),
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DEFAULT_TARGETS)
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# Generate a list of the unique build roots and configs that the
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# collected targets reference.
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build_paths = []
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build_root = None
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for t in abs_targets:
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path_dirs = t.split('/')
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try:
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build_top = rfind(path_dirs, 'build', -2)
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except:
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print "Error: no non-leaf 'build' dir found on target path", t
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Exit(1)
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this_build_root = joinpath('/',*path_dirs[:build_top+1])
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if not build_root:
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build_root = this_build_root
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else:
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if this_build_root != build_root:
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print "Error: build targets not under same build root\n"\
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" %s\n %s" % (build_root, this_build_root)
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Exit(1)
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build_path = joinpath('/',*path_dirs[:build_top+2])
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if build_path not in build_paths:
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build_paths.append(build_path)
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# Make sure build_root exists (might not if this is the first build there)
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if not isdir(build_root):
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os.mkdir(build_root)
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###################################################
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#
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# Set up the default build environment. This environment is copied
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# and modified according to each selected configuration.
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#
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###################################################
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env = Environment(ENV = os.environ, # inherit user's environment vars
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ROOT = ROOT,
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SRCDIR = SRCDIR)
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Export('env')
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env.SConsignFile(joinpath(build_root,"sconsign"))
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# Default duplicate option is to use hard links, but this messes up
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# when you use emacs to edit a file in the target dir, as emacs moves
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# file to file~ then copies to file, breaking the link. Symbolic
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# (soft) links work better.
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env.SetOption('duplicate', 'soft-copy')
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# I waffle on this setting... it does avoid a few painful but
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# unnecessary builds, but it also seems to make trivial builds take
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# noticeably longer.
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if False:
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env.TargetSignatures('content')
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#
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# Set up global sticky options... these are common to an entire build
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# tree (not specific to a particular build like ALPHA_SE)
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#
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# Option validators & converters for global sticky options
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def PathListMakeAbsolute(val):
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if not val:
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return val
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f = lambda p: os.path.abspath(os.path.expanduser(p))
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return ':'.join(map(f, val.split(':')))
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def PathListAllExist(key, val, env):
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if not val:
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return
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paths = val.split(':')
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for path in paths:
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if not isdir(path):
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raise SCons.Errors.UserError("Path does not exist: '%s'" % path)
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global_sticky_opts_file = joinpath(build_root, 'options.global')
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global_sticky_opts = Options(global_sticky_opts_file, args=ARGUMENTS)
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global_sticky_opts.AddOptions(
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('CC', 'C compiler', os.environ.get('CC', env['CC'])),
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('CXX', 'C++ compiler', os.environ.get('CXX', env['CXX'])),
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('BATCH', 'Use batch pool for build and tests', False),
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('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
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('EXTRAS', 'Add Extra directories to the compilation', '',
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PathListAllExist, PathListMakeAbsolute)
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)
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# base help text
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help_text = '''
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Usage: scons [scons options] [build options] [target(s)]
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'''
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help_text += "Global sticky options:\n" \
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+ global_sticky_opts.GenerateHelpText(env)
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# Update env with values from ARGUMENTS & file global_sticky_opts_file
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global_sticky_opts.Update(env)
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# Save sticky option settings back to current options file
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global_sticky_opts.Save(global_sticky_opts_file, env)
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# Parse EXTRAS option to build list of all directories where we're
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# look for sources etc. This list is exported as base_dir_list.
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base_dir_list = [joinpath(ROOT, 'src')]
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if env['EXTRAS']:
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base_dir_list += env['EXTRAS'].split(':')
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Export('base_dir_list')
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# M5_PLY is used by isa_parser.py to find the PLY package.
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env.Append(ENV = { 'M5_PLY' : str(Dir('ext/ply')) })
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env['GCC'] = subprocess.Popen(env['CXX'] + ' --version', shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
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close_fds=True).communicate()[0].find('g++') >= 0
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env['SUNCC'] = subprocess.Popen(env['CXX'] + ' -V', shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
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close_fds=True).communicate()[0].find('Sun C++') >= 0
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env['ICC'] = subprocess.Popen(env['CXX'] + ' -V', shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
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close_fds=True).communicate()[0].find('Intel') >= 0
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if env['GCC'] + env['SUNCC'] + env['ICC'] > 1:
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print 'Error: How can we have two at the same time?'
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Exit(1)
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# Set up default C++ compiler flags
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if env['GCC']:
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env.Append(CCFLAGS='-pipe')
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env.Append(CCFLAGS='-fno-strict-aliasing')
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env.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef'))
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env.Append(CXXFLAGS='-Wno-deprecated')
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elif env['ICC']:
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pass #Fix me... add warning flags once we clean up icc warnings
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elif env['SUNCC']:
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env.Append(CCFLAGS='-Qoption ccfe')
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env.Append(CCFLAGS='-features=gcc')
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env.Append(CCFLAGS='-features=extensions')
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env.Append(CCFLAGS='-library=stlport4')
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env.Append(CCFLAGS='-xar')
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# env.Append(CCFLAGS='-instances=semiexplicit')
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else:
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print 'Error: Don\'t know what compiler options to use for your compiler.'
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print ' Please fix SConstruct and src/SConscript and try again.'
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Exit(1)
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# Do this after we save setting back, or else we'll tack on an
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# extra 'qdo' every time we run scons.
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if env['BATCH']:
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env['CC'] = env['BATCH_CMD'] + ' ' + env['CC']
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env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX']
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env['AS'] = env['BATCH_CMD'] + ' ' + env['AS']
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env['AR'] = env['BATCH_CMD'] + ' ' + env['AR']
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env['RANLIB'] = env['BATCH_CMD'] + ' ' + env['RANLIB']
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if sys.platform == 'cygwin':
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# cygwin has some header file issues...
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env.Append(CCFLAGS=Split("-Wno-uninitialized"))
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env.Append(CPPPATH=[Dir('ext/dnet')])
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# Check for SWIG
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if not env.has_key('SWIG'):
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print 'Error: SWIG utility not found.'
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print ' Please install (see http://www.swig.org) and retry.'
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Exit(1)
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# Check for appropriate SWIG version
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swig_version = os.popen('swig -version').read().split()
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# First 3 words should be "SWIG Version x.y.z"
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if len(swig_version) < 3 or \
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swig_version[0] != 'SWIG' or swig_version[1] != 'Version':
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print 'Error determining SWIG version.'
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Exit(1)
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min_swig_version = '1.3.28'
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if compare_versions(swig_version[2], min_swig_version) < 0:
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print 'Error: SWIG version', min_swig_version, 'or newer required.'
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print ' Installed version:', swig_version[2]
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Exit(1)
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# Set up SWIG flags & scanner
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swig_flags=Split('-c++ -python -modern -templatereduce $_CPPINCFLAGS')
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env.Append(SWIGFLAGS=swig_flags)
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# filter out all existing swig scanners, they mess up the dependency
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# stuff for some reason
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scanners = []
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for scanner in env['SCANNERS']:
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skeys = scanner.skeys
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if skeys == '.i':
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continue
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if isinstance(skeys, (list, tuple)) and '.i' in skeys:
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continue
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scanners.append(scanner)
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# add the new swig scanner that we like better
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from SCons.Scanner import ClassicCPP as CPPScanner
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swig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
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scanners.append(CPPScanner("SwigScan", [ ".i" ], "CPPPATH", swig_inc_re))
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# replace the scanners list that has what we want
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env['SCANNERS'] = scanners
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# Add a custom Check function to the Configure context so that we can
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# figure out if the compiler adds leading underscores to global
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# variables. This is needed for the autogenerated asm files that we
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# use for embedding the python code.
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def CheckLeading(context):
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context.Message("Checking for leading underscore in global variables...")
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# 1) Define a global variable called x from asm so the C compiler
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# won't change the symbol at all.
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# 2) Declare that variable.
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# 3) Use the variable
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#
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# If the compiler prepends an underscore, this will successfully
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# link because the external symbol 'x' will be called '_x' which
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# was defined by the asm statement. If the compiler does not
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# prepend an underscore, this will not successfully link because
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# '_x' will have been defined by assembly, while the C portion of
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# the code will be trying to use 'x'
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ret = context.TryLink('''
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asm(".globl _x; _x: .byte 0");
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extern int x;
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int main() { return x; }
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''', extension=".c")
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context.env.Append(LEADING_UNDERSCORE=ret)
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context.Result(ret)
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return ret
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# Platform-specific configuration. Note again that we assume that all
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# builds under a given build root run on the same host platform.
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conf = Configure(env,
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conf_dir = joinpath(build_root, '.scons_config'),
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log_file = joinpath(build_root, 'scons_config.log'),
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custom_tests = { 'CheckLeading' : CheckLeading })
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|
|
# Check for leading underscores. Don't really need to worry either
|
|
# way so don't need to check the return code.
|
|
conf.CheckLeading()
|
|
|
|
# Check if we should compile a 64 bit binary on Mac OS X/Darwin
|
|
try:
|
|
import platform
|
|
uname = platform.uname()
|
|
if uname[0] == 'Darwin' and compare_versions(uname[2], '9.0.0') >= 0:
|
|
if int(subprocess.Popen('sysctl -n hw.cpu64bit_capable', shell=True,
|
|
stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
|
|
close_fds=True).communicate()[0][0]):
|
|
env.Append(CCFLAGS='-arch x86_64')
|
|
env.Append(CFLAGS='-arch x86_64')
|
|
env.Append(LINKFLAGS='-arch x86_64')
|
|
env.Append(ASFLAGS='-arch x86_64')
|
|
except:
|
|
pass
|
|
|
|
# Recent versions of scons substitute a "Null" object for Configure()
|
|
# when configuration isn't necessary, e.g., if the "--help" option is
|
|
# present. Unfortuantely this Null object always returns false,
|
|
# breaking all our configuration checks. We replace it with our own
|
|
# more optimistic null object that returns True instead.
|
|
if not conf:
|
|
def NullCheck(*args, **kwargs):
|
|
return True
|
|
|
|
class NullConf:
|
|
def __init__(self, env):
|
|
self.env = env
|
|
def Finish(self):
|
|
return self.env
|
|
def __getattr__(self, mname):
|
|
return NullCheck
|
|
|
|
conf = NullConf(env)
|
|
|
|
# Find Python include and library directories for embedding the
|
|
# interpreter. For consistency, we will use the same Python
|
|
# installation used to run scons (and thus this script). If you want
|
|
# to link in an alternate version, see above for instructions on how
|
|
# to invoke scons with a different copy of the Python interpreter.
|
|
|
|
# Get brief Python version name (e.g., "python2.4") for locating
|
|
# include & library files
|
|
py_version_name = 'python' + sys.version[:3]
|
|
|
|
# include path, e.g. /usr/local/include/python2.4
|
|
py_header_path = joinpath(sys.exec_prefix, 'include', py_version_name)
|
|
env.Append(CPPPATH = py_header_path)
|
|
# verify that it works
|
|
if not conf.CheckHeader('Python.h', '<>'):
|
|
print "Error: can't find Python.h header in", py_header_path
|
|
Exit(1)
|
|
|
|
# add library path too if it's not in the default place
|
|
py_lib_path = None
|
|
if sys.exec_prefix != '/usr':
|
|
py_lib_path = joinpath(sys.exec_prefix, 'lib')
|
|
elif sys.platform == 'cygwin':
|
|
# cygwin puts the .dll in /bin for some reason
|
|
py_lib_path = '/bin'
|
|
if py_lib_path:
|
|
env.Append(LIBPATH = py_lib_path)
|
|
print 'Adding', py_lib_path, 'to LIBPATH for', py_version_name
|
|
if not conf.CheckLib(py_version_name):
|
|
print "Error: can't find Python library", py_version_name
|
|
Exit(1)
|
|
|
|
# On Solaris you need to use libsocket for socket ops
|
|
if not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'):
|
|
if not conf.CheckLibWithHeader('socket', 'sys/socket.h', 'C++', 'accept(0,0,0);'):
|
|
print "Can't find library with socket calls (e.g. accept())"
|
|
Exit(1)
|
|
|
|
# Check for zlib. If the check passes, libz will be automatically
|
|
# added to the LIBS environment variable.
|
|
if not conf.CheckLibWithHeader('z', 'zlib.h', 'C++','zlibVersion();'):
|
|
print 'Error: did not find needed zlib compression library '\
|
|
'and/or zlib.h header file.'
|
|
print ' Please install zlib and try again.'
|
|
Exit(1)
|
|
|
|
# Check for <fenv.h> (C99 FP environment control)
|
|
have_fenv = conf.CheckHeader('fenv.h', '<>')
|
|
if not have_fenv:
|
|
print "Warning: Header file <fenv.h> not found."
|
|
print " This host has no IEEE FP rounding mode control."
|
|
|
|
# Check for mysql.
|
|
mysql_config = WhereIs('mysql_config')
|
|
have_mysql = mysql_config != None
|
|
|
|
# Check MySQL version.
|
|
if have_mysql:
|
|
mysql_version = os.popen(mysql_config + ' --version').read()
|
|
min_mysql_version = '4.1'
|
|
if compare_versions(mysql_version, min_mysql_version) < 0:
|
|
print 'Warning: MySQL', min_mysql_version, 'or newer required.'
|
|
print ' Version', mysql_version, 'detected.'
|
|
have_mysql = False
|
|
|
|
# Set up mysql_config commands.
|
|
if have_mysql:
|
|
mysql_config_include = mysql_config + ' --include'
|
|
if os.system(mysql_config_include + ' > /dev/null') != 0:
|
|
# older mysql_config versions don't support --include, use
|
|
# --cflags instead
|
|
mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
|
|
# This seems to work in all versions
|
|
mysql_config_libs = mysql_config + ' --libs'
|
|
|
|
env = conf.Finish()
|
|
|
|
# Define the universe of supported ISAs
|
|
all_isa_list = [ ]
|
|
Export('all_isa_list')
|
|
|
|
# Define the universe of supported CPU models
|
|
all_cpu_list = [ ]
|
|
default_cpus = [ ]
|
|
Export('all_cpu_list', 'default_cpus')
|
|
|
|
# Sticky options get saved in the options file so they persist from
|
|
# one invocation to the next (unless overridden, in which case the new
|
|
# value becomes sticky).
|
|
sticky_opts = Options(args=ARGUMENTS)
|
|
Export('sticky_opts')
|
|
|
|
# Non-sticky options only apply to the current build.
|
|
nonsticky_opts = Options(args=ARGUMENTS)
|
|
Export('nonsticky_opts')
|
|
|
|
# Walk the tree and execute all SConsopts scripts that wil add to the
|
|
# above options
|
|
for base_dir in base_dir_list:
|
|
for root, dirs, files in os.walk(base_dir):
|
|
if 'SConsopts' in files:
|
|
print "Reading", joinpath(root, 'SConsopts')
|
|
SConscript(joinpath(root, 'SConsopts'))
|
|
|
|
all_isa_list.sort()
|
|
all_cpu_list.sort()
|
|
default_cpus.sort()
|
|
|
|
sticky_opts.AddOptions(
|
|
EnumOption('TARGET_ISA', 'Target ISA', 'alpha', all_isa_list),
|
|
BoolOption('FULL_SYSTEM', 'Full-system support', False),
|
|
# There's a bug in scons 0.96.1 that causes ListOptions with list
|
|
# values (more than one value) not to be able to be restored from
|
|
# a saved option file. If this causes trouble then upgrade to
|
|
# scons 0.96.90 or later.
|
|
ListOption('CPU_MODELS', 'CPU models', default_cpus, all_cpu_list),
|
|
BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False),
|
|
BoolOption('FAST_ALLOC_DEBUG', 'Enable fast object allocator debugging',
|
|
False),
|
|
BoolOption('FAST_ALLOC_STATS', 'Enable fast object allocator statistics',
|
|
False),
|
|
BoolOption('EFENCE', 'Link with Electric Fence malloc debugger',
|
|
False),
|
|
BoolOption('SS_COMPATIBLE_FP',
|
|
'Make floating-point results compatible with SimpleScalar',
|
|
False),
|
|
BoolOption('USE_SSE2',
|
|
'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts',
|
|
False),
|
|
BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql),
|
|
BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv),
|
|
BoolOption('USE_CHECKER', 'Use checker for detailed CPU models', False),
|
|
)
|
|
|
|
nonsticky_opts.AddOptions(
|
|
BoolOption('update_ref', 'Update test reference outputs', False)
|
|
)
|
|
|
|
# These options get exported to #defines in config/*.hh (see src/SConscript).
|
|
env.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \
|
|
'USE_MYSQL', 'NO_FAST_ALLOC', 'FAST_ALLOC_DEBUG', \
|
|
'FAST_ALLOC_STATS', 'SS_COMPATIBLE_FP', \
|
|
'USE_CHECKER', 'TARGET_ISA']
|
|
|
|
# Define a handy 'no-op' action
|
|
def no_action(target, source, env):
|
|
return 0
|
|
|
|
env.NoAction = Action(no_action, None)
|
|
|
|
###################################################
|
|
#
|
|
# Define a SCons builder for configuration flag headers.
|
|
#
|
|
###################################################
|
|
|
|
# This function generates a config header file that #defines the
|
|
# option symbol to the current option setting (0 or 1). The source
|
|
# operands are the name of the option and a Value node containing the
|
|
# value of the option.
|
|
def build_config_file(target, source, env):
|
|
(option, value) = [s.get_contents() for s in source]
|
|
f = file(str(target[0]), 'w')
|
|
print >> f, '#define', option, value
|
|
f.close()
|
|
return None
|
|
|
|
# Generate the message to be printed when building the config file.
|
|
def build_config_file_string(target, source, env):
|
|
(option, value) = [s.get_contents() for s in source]
|
|
return "Defining %s as %s in %s." % (option, value, target[0])
|
|
|
|
# Combine the two functions into a scons Action object.
|
|
config_action = Action(build_config_file, build_config_file_string)
|
|
|
|
# The emitter munges the source & target node lists to reflect what
|
|
# we're really doing.
|
|
def config_emitter(target, source, env):
|
|
# extract option name from Builder arg
|
|
option = str(target[0])
|
|
# True target is config header file
|
|
target = joinpath('config', option.lower() + '.hh')
|
|
val = env[option]
|
|
if isinstance(val, bool):
|
|
# Force value to 0/1
|
|
val = int(val)
|
|
elif isinstance(val, str):
|
|
val = '"' + val + '"'
|
|
|
|
# Sources are option name & value (packaged in SCons Value nodes)
|
|
return ([target], [Value(option), Value(val)])
|
|
|
|
config_builder = Builder(emitter = config_emitter, action = config_action)
|
|
|
|
env.Append(BUILDERS = { 'ConfigFile' : config_builder })
|
|
|
|
###################################################
|
|
#
|
|
# Define a SCons builder for copying files. This is used by the
|
|
# Python zipfile code in src/python/SConscript, but is placed up here
|
|
# since it's potentially more generally applicable.
|
|
#
|
|
###################################################
|
|
|
|
copy_builder = Builder(action = Copy("$TARGET", "$SOURCE"))
|
|
|
|
env.Append(BUILDERS = { 'CopyFile' : copy_builder })
|
|
|
|
###################################################
|
|
#
|
|
# Define a simple SCons builder to concatenate files.
|
|
#
|
|
# Used to append the Python zip archive to the executable.
|
|
#
|
|
###################################################
|
|
|
|
concat_builder = Builder(action = Action(['cat $SOURCES > $TARGET',
|
|
'chmod +x $TARGET']))
|
|
|
|
env.Append(BUILDERS = { 'Concat' : concat_builder })
|
|
|
|
|
|
# libelf build is shared across all configs in the build root.
|
|
env.SConscript('ext/libelf/SConscript',
|
|
build_dir = joinpath(build_root, 'libelf'),
|
|
exports = 'env')
|
|
|
|
###################################################
|
|
#
|
|
# This function is used to set up a directory with switching headers
|
|
#
|
|
###################################################
|
|
|
|
env['ALL_ISA_LIST'] = all_isa_list
|
|
def make_switching_dir(dirname, switch_headers, env):
|
|
# Generate the header. target[0] is the full path of the output
|
|
# header to generate. 'source' is a dummy variable, since we get the
|
|
# list of ISAs from env['ALL_ISA_LIST'].
|
|
def gen_switch_hdr(target, source, env):
|
|
fname = str(target[0])
|
|
basename = os.path.basename(fname)
|
|
f = open(fname, 'w')
|
|
f.write('#include "arch/isa_specific.hh"\n')
|
|
cond = '#if'
|
|
for isa in all_isa_list:
|
|
f.write('%s THE_ISA == %s_ISA\n#include "%s/%s/%s"\n'
|
|
% (cond, isa.upper(), dirname, isa, basename))
|
|
cond = '#elif'
|
|
f.write('#else\n#error "THE_ISA not set"\n#endif\n')
|
|
f.close()
|
|
return 0
|
|
|
|
# String to print when generating header
|
|
def gen_switch_hdr_string(target, source, env):
|
|
return "Generating switch header " + str(target[0])
|
|
|
|
# Build SCons Action object. 'varlist' specifies env vars that this
|
|
# action depends on; when env['ALL_ISA_LIST'] changes these actions
|
|
# should get re-executed.
|
|
switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string,
|
|
varlist=['ALL_ISA_LIST'])
|
|
|
|
# Instantiate actions for each header
|
|
for hdr in switch_headers:
|
|
env.Command(hdr, [], switch_hdr_action)
|
|
Export('make_switching_dir')
|
|
|
|
###################################################
|
|
#
|
|
# Define build environments for selected configurations.
|
|
#
|
|
###################################################
|
|
|
|
# rename base env
|
|
base_env = env
|
|
|
|
for build_path in build_paths:
|
|
print "Building in", build_path
|
|
|
|
# Make a copy of the build-root environment to use for this config.
|
|
env = base_env.Copy()
|
|
env['BUILDDIR'] = build_path
|
|
|
|
# build_dir is the tail component of build path, and is used to
|
|
# determine the build parameters (e.g., 'ALPHA_SE')
|
|
(build_root, build_dir) = os.path.split(build_path)
|
|
|
|
# Set env options according to the build directory config.
|
|
sticky_opts.files = []
|
|
# Options for $BUILD_ROOT/$BUILD_DIR are stored in
|
|
# $BUILD_ROOT/options/$BUILD_DIR so you can nuke
|
|
# $BUILD_ROOT/$BUILD_DIR without losing your options settings.
|
|
current_opts_file = joinpath(build_root, 'options', build_dir)
|
|
if isfile(current_opts_file):
|
|
sticky_opts.files.append(current_opts_file)
|
|
print "Using saved options file %s" % current_opts_file
|
|
else:
|
|
# Build dir-specific options file doesn't exist.
|
|
|
|
# Make sure the directory is there so we can create it later
|
|
opt_dir = os.path.dirname(current_opts_file)
|
|
if not isdir(opt_dir):
|
|
os.mkdir(opt_dir)
|
|
|
|
# Get default build options from source tree. Options are
|
|
# normally determined by name of $BUILD_DIR, but can be
|
|
# overriden by 'default=' arg on command line.
|
|
default_opts_file = joinpath('build_opts',
|
|
ARGUMENTS.get('default', build_dir))
|
|
if isfile(default_opts_file):
|
|
sticky_opts.files.append(default_opts_file)
|
|
print "Options file %s not found,\n using defaults in %s" \
|
|
% (current_opts_file, default_opts_file)
|
|
else:
|
|
print "Error: cannot find options file %s or %s" \
|
|
% (current_opts_file, default_opts_file)
|
|
Exit(1)
|
|
|
|
# Apply current option settings to env
|
|
sticky_opts.Update(env)
|
|
nonsticky_opts.Update(env)
|
|
|
|
help_text += "\nSticky options for %s:\n" % build_dir \
|
|
+ sticky_opts.GenerateHelpText(env) \
|
|
+ "\nNon-sticky options for %s:\n" % build_dir \
|
|
+ nonsticky_opts.GenerateHelpText(env)
|
|
|
|
# Process option settings.
|
|
|
|
if not have_fenv and env['USE_FENV']:
|
|
print "Warning: <fenv.h> not available; " \
|
|
"forcing USE_FENV to False in", build_dir + "."
|
|
env['USE_FENV'] = False
|
|
|
|
if not env['USE_FENV']:
|
|
print "Warning: No IEEE FP rounding mode control in", build_dir + "."
|
|
print " FP results may deviate slightly from other platforms."
|
|
|
|
if env['EFENCE']:
|
|
env.Append(LIBS=['efence'])
|
|
|
|
if env['USE_MYSQL']:
|
|
if not have_mysql:
|
|
print "Warning: MySQL not available; " \
|
|
"forcing USE_MYSQL to False in", build_dir + "."
|
|
env['USE_MYSQL'] = False
|
|
else:
|
|
print "Compiling in", build_dir, "with MySQL support."
|
|
env.ParseConfig(mysql_config_libs)
|
|
env.ParseConfig(mysql_config_include)
|
|
|
|
# Save sticky option settings back to current options file
|
|
sticky_opts.Save(current_opts_file, env)
|
|
|
|
if env['USE_SSE2']:
|
|
env.Append(CCFLAGS='-msse2')
|
|
|
|
# The src/SConscript file sets up the build rules in 'env' according
|
|
# to the configured options. It returns a list of environments,
|
|
# one for each variant build (debug, opt, etc.)
|
|
envList = SConscript('src/SConscript', build_dir = build_path,
|
|
exports = 'env')
|
|
|
|
# Set up the regression tests for each build.
|
|
for e in envList:
|
|
SConscript('tests/SConscript',
|
|
build_dir = joinpath(build_path, 'tests', e.Label),
|
|
exports = { 'env' : e }, duplicate = False)
|
|
|
|
Help(help_text)
|
|
|
|
|
|
###################################################
|
|
#
|
|
# Let SCons do its thing. At this point SCons will use the defined
|
|
# build environments to build the requested targets.
|
|
#
|
|
###################################################
|
|
|