85436fd413
setup is correct and provide meeaningful error messages when it's not. Also fix for building on Cygwin where python lib is in /bin and not /lib. --HG-- extra : convert_revision : 7a29ba17463de60c72b3d8b04e4c4f81fc64bf61
561 lines
21 KiB
Python
561 lines
21 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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# Python library imports
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import sys
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import os
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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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# Ironically, SCons 0.96 dies if you give EnsureSconsVersion a
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# 3-element version number.
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min_scons_version = (0,96,91)
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try:
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EnsureSConsVersion(*min_scons_version)
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except:
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print "Error checking current SCons version."
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print "SCons", ".".join(map(str,min_scons_version)), "or greater required."
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Exit(2)
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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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# Paths to the M5 and external source trees.
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SRCDIR = os.path.join(ROOT, 'src')
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# tell python where to find m5 python code
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sys.path.append(os.path.join(ROOT, 'src/python'))
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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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# 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(os.path.join(launch_dir, str(x))),
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BUILD_TARGETS)
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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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# helper function: compare dotted 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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# Convert dotted strings to lists
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v1 = map(int, v1.split('.'))
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v2 = map(int, v2.split('.'))
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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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# 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 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 = os.path.join('/',*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 = os.path.join('/',*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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###################################################
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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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env.SConsignFile(os.path.join(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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# M5_PLY is used by isa_parser.py to find the PLY package.
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env.Append(ENV = { 'M5_PLY' : Dir('ext/ply') })
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# Set up default C++ compiler flags
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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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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 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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env.Append(SWIGFLAGS=Split('-c++ -python -modern $_CPPINCFLAGS'))
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import SCons.Scanner
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swig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
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swig_scanner = SCons.Scanner.ClassicCPP("SwigScan", ".i", "CPPPATH",
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swig_inc_re)
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env.Append(SCANNERS = swig_scanner)
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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 = os.path.join(build_root, '.scons_config'),
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log_file = os.path.join(build_root, 'scons_config.log'))
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# Find Python include and library directories for embedding the
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# interpreter. For consistency, we will use the same Python
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# installation used to run scons (and thus this script). If you want
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# to link in an alternate version, see above for instructions on how
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# to invoke scons with a different copy of the Python interpreter.
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# Get brief Python version name (e.g., "python2.4") for locating
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# include & library files
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py_version_name = 'python' + sys.version[:3]
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# include path, e.g. /usr/local/include/python2.4
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py_header_path = os.path.join(sys.exec_prefix, 'include', py_version_name)
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env.Append(CPPPATH = py_header_path)
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# verify that it works
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if not conf.CheckHeader('Python.h', '<>'):
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print "Error: can't find Python.h header in", py_header_path
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Exit(1)
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# add library path too if it's not in the default place
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py_lib_path = None
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if sys.exec_prefix != '/usr':
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py_lib_path = os.path.join(sys.exec_prefix, 'lib')
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elif sys.platform == 'cygwin':
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# cygwin puts the .dll in /bin for some reason
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py_lib_path = '/bin'
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if py_lib_path:
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env.Append(LIBPATH = py_lib_path)
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print 'Adding', py_lib_path, 'to LIBPATH for', py_version_name
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if not conf.CheckLib(py_version_name):
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print "Error: can't find Python library", py_version_name
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Exit(1)
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# Check for zlib. If the check passes, libz will be automatically
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# added to the LIBS environment variable.
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if not conf.CheckLibWithHeader('z', 'zlib.h', 'C++'):
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print 'Error: did not find needed zlib compression library '\
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'and/or zlib.h header file.'
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print ' Please install zlib and try again.'
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Exit(1)
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# Check for <fenv.h> (C99 FP environment control)
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have_fenv = conf.CheckHeader('fenv.h', '<>')
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if not have_fenv:
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print "Warning: Header file <fenv.h> not found."
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print " This host has no IEEE FP rounding mode control."
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# Check for mysql.
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mysql_config = WhereIs('mysql_config')
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have_mysql = mysql_config != None
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# Check MySQL version.
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if have_mysql:
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mysql_version = os.popen(mysql_config + ' --version').read()
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min_mysql_version = '4.1'
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if compare_versions(mysql_version, min_mysql_version) < 0:
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print 'Warning: MySQL', min_mysql_version, 'or newer required.'
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print ' Version', mysql_version, 'detected.'
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have_mysql = False
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# Set up mysql_config commands.
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if have_mysql:
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mysql_config_include = mysql_config + ' --include'
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if os.system(mysql_config_include + ' > /dev/null') != 0:
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# older mysql_config versions don't support --include, use
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# --cflags instead
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mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
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# This seems to work in all versions
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mysql_config_libs = mysql_config + ' --libs'
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env = conf.Finish()
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# Define the universe of supported ISAs
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env['ALL_ISA_LIST'] = ['alpha', 'sparc', 'mips']
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# Define the universe of supported CPU models
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env['ALL_CPU_LIST'] = ['AtomicSimpleCPU', 'TimingSimpleCPU',
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'FullCPU', 'O3CPU',
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'OzoneCPU']
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# Sticky options get saved in the options file so they persist from
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# one invocation to the next (unless overridden, in which case the new
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# value becomes sticky).
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sticky_opts = Options(args=ARGUMENTS)
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sticky_opts.AddOptions(
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EnumOption('TARGET_ISA', 'Target ISA', 'alpha', env['ALL_ISA_LIST']),
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BoolOption('FULL_SYSTEM', 'Full-system support', False),
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# There's a bug in scons 0.96.1 that causes ListOptions with list
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# values (more than one value) not to be able to be restored from
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# a saved option file. If this causes trouble then upgrade to
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# scons 0.96.90 or later.
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ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU',
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env['ALL_CPU_LIST']),
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BoolOption('ALPHA_TLASER',
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'Model Alpha TurboLaser platform (vs. Tsunami)', False),
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BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False),
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BoolOption('EFENCE', 'Link with Electric Fence malloc debugger',
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False),
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BoolOption('SS_COMPATIBLE_FP',
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'Make floating-point results compatible with SimpleScalar',
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False),
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BoolOption('USE_SSE2',
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'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts',
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False),
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BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql),
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BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv),
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BoolOption('USE_CHECKER', 'Use checker for detailed CPU models', False),
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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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BoolOption('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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)
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# Non-sticky options only apply to the current build.
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nonsticky_opts = Options(args=ARGUMENTS)
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nonsticky_opts.AddOptions(
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BoolOption('update_ref', 'Update test reference outputs', False)
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)
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# These options get exported to #defines in config/*.hh (see src/SConscript).
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env.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \
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'USE_MYSQL', 'NO_FAST_ALLOC', 'SS_COMPATIBLE_FP', \
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'USE_CHECKER']
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# Define a handy 'no-op' action
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def no_action(target, source, env):
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return 0
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env.NoAction = Action(no_action, None)
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###################################################
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#
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# Define a SCons builder for configuration flag headers.
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#
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###################################################
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# This function generates a config header file that #defines the
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# option symbol to the current option setting (0 or 1). The source
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# operands are the name of the option and a Value node containing the
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# value of the option.
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def build_config_file(target, source, env):
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(option, value) = [s.get_contents() for s in source]
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f = file(str(target[0]), 'w')
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print >> f, '#define', option, value
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f.close()
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return None
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# Generate the message to be printed when building the config file.
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def build_config_file_string(target, source, env):
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(option, value) = [s.get_contents() for s in source]
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return "Defining %s as %s in %s." % (option, value, target[0])
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# Combine the two functions into a scons Action object.
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config_action = Action(build_config_file, build_config_file_string)
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# The emitter munges the source & target node lists to reflect what
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# we're really doing.
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def config_emitter(target, source, env):
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# extract option name from Builder arg
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option = str(target[0])
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# True target is config header file
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target = os.path.join('config', option.lower() + '.hh')
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# Force value to 0/1 even if it's a Python bool
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val = int(eval(str(env[option])))
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# Sources are option name & value (packaged in SCons Value nodes)
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return ([target], [Value(option), Value(val)])
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config_builder = Builder(emitter = config_emitter, action = config_action)
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env.Append(BUILDERS = { 'ConfigFile' : config_builder })
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###################################################
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#
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# Define a SCons builder for copying files. This is used by the
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# Python zipfile code in src/python/SConscript, but is placed up here
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# since it's potentially more generally applicable.
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#
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###################################################
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copy_builder = Builder(action = Copy("$TARGET", "$SOURCE"))
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env.Append(BUILDERS = { 'CopyFile' : copy_builder })
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###################################################
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#
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# Define a simple SCons builder to concatenate files.
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#
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# Used to append the Python zip archive to the executable.
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#
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###################################################
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concat_builder = Builder(action = Action(['cat $SOURCES > $TARGET',
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'chmod +x $TARGET']))
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env.Append(BUILDERS = { 'Concat' : concat_builder })
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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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# libelf build is shared across all configs in the build root.
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env.SConscript('ext/libelf/SConscript',
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build_dir = os.path.join(build_root, 'libelf'),
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exports = 'env')
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###################################################
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#
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# Define build environments for selected configurations.
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#
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###################################################
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# rename base env
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base_env = env
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for build_path in build_paths:
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print "Building in", 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)
|
|
# Make a copy of the build-root environment to use for this config.
|
|
env = base_env.Copy()
|
|
|
|
# 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 = os.path.join(build_root, 'options', build_dir)
|
|
if os.path.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 os.path.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 = os.path.join('build_opts',
|
|
ARGUMENTS.get('default', build_dir))
|
|
if os.path.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 += "Sticky 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)
|
|
|
|
# Do this after we save setting back, or else we'll tack on an
|
|
# extra 'qdo' every time we run scons.
|
|
if env['BATCH']:
|
|
env['CC'] = env['BATCH_CMD'] + ' ' + env['CC']
|
|
env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX']
|
|
|
|
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 = os.path.join(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.
|
|
#
|
|
###################################################
|
|
|