SConstruct revision 6157
1955SN/A# -*- mode:python -*- 2955SN/A 35871Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company 41762SN/A# Copyright (c) 2004-2005 The Regents of The University of Michigan 5955SN/A# All rights reserved. 6955SN/A# 7955SN/A# Redistribution and use in source and binary forms, with or without 8955SN/A# modification, are permitted provided that the following conditions are 9955SN/A# met: redistributions of source code must retain the above copyright 10955SN/A# notice, this list of conditions and the following disclaimer; 11955SN/A# redistributions in binary form must reproduce the above copyright 12955SN/A# notice, this list of conditions and the following disclaimer in the 13955SN/A# documentation and/or other materials provided with the distribution; 14955SN/A# neither the name of the copyright holders nor the names of its 15955SN/A# contributors may be used to endorse or promote products derived from 16955SN/A# this software without specific prior written permission. 17955SN/A# 18955SN/A# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19955SN/A# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20955SN/A# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21955SN/A# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22955SN/A# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23955SN/A# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24955SN/A# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25955SN/A# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26955SN/A# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27955SN/A# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28955SN/A# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 292665Ssaidi@eecs.umich.edu# 302665Ssaidi@eecs.umich.edu# Authors: Steve Reinhardt 315863Snate@binkert.org# Nathan Binkert 32955SN/A 33955SN/A################################################### 34955SN/A# 35955SN/A# SCons top-level build description (SConstruct) file. 36955SN/A# 372632Sstever@eecs.umich.edu# While in this directory ('m5'), just type 'scons' to build the default 382632Sstever@eecs.umich.edu# configuration (see below), or type 'scons build/<CONFIG>/<binary>' 392632Sstever@eecs.umich.edu# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for 402632Sstever@eecs.umich.edu# the optimized full-system version). 41955SN/A# 422632Sstever@eecs.umich.edu# You can build M5 in a different directory as long as there is a 432632Sstever@eecs.umich.edu# 'build/<CONFIG>' somewhere along the target path. The build system 442761Sstever@eecs.umich.edu# expects that all configs under the same build directory are being 452632Sstever@eecs.umich.edu# built for the same host system. 462632Sstever@eecs.umich.edu# 472632Sstever@eecs.umich.edu# Examples: 482761Sstever@eecs.umich.edu# 492761Sstever@eecs.umich.edu# The following two commands are equivalent. The '-u' option tells 502761Sstever@eecs.umich.edu# scons to search up the directory tree for this SConstruct file. 512632Sstever@eecs.umich.edu# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug 522632Sstever@eecs.umich.edu# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug 532761Sstever@eecs.umich.edu# 542761Sstever@eecs.umich.edu# The following two commands are equivalent and demonstrate building 552761Sstever@eecs.umich.edu# in a directory outside of the source tree. The '-C' option tells 562761Sstever@eecs.umich.edu# scons to chdir to the specified directory to find this SConstruct 572761Sstever@eecs.umich.edu# file. 582632Sstever@eecs.umich.edu# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug 592632Sstever@eecs.umich.edu# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug 602632Sstever@eecs.umich.edu# 612632Sstever@eecs.umich.edu# You can use 'scons -H' to print scons options. If you're in this 622632Sstever@eecs.umich.edu# 'm5' directory (or use -u or -C to tell scons where to find this 632632Sstever@eecs.umich.edu# file), you can use 'scons -h' to print all the M5-specific build 642632Sstever@eecs.umich.edu# options as well. 65955SN/A# 66955SN/A################################################### 67955SN/A 685863Snate@binkert.org# Check for recent-enough Python and SCons versions. 695863Snate@binkert.orgtry: 705863Snate@binkert.org # Really old versions of scons only take two options for the 715863Snate@binkert.org # function, so check once without the revision and once with the 725863Snate@binkert.org # revision, the first instance will fail for stuff other than 735863Snate@binkert.org # 0.98, and the second will fail for 0.98.0 745863Snate@binkert.org EnsureSConsVersion(0, 98) 755863Snate@binkert.org EnsureSConsVersion(0, 98, 1) 765863Snate@binkert.orgexcept SystemExit, e: 775863Snate@binkert.org print """ 785863Snate@binkert.orgFor more details, see: 795863Snate@binkert.org http://m5sim.org/wiki/index.php/Compiling_M5 805863Snate@binkert.org""" 815863Snate@binkert.org raise 825863Snate@binkert.org 835863Snate@binkert.org# We ensure the python version early because we have stuff that 845863Snate@binkert.org# requires python 2.4 855863Snate@binkert.orgtry: 865863Snate@binkert.org EnsurePythonVersion(2, 4) 875863Snate@binkert.orgexcept SystemExit, e: 885863Snate@binkert.org print """ 895863Snate@binkert.orgYou can use a non-default installation of the Python interpreter by 905863Snate@binkert.orgeither (1) rearranging your PATH so that scons finds the non-default 915863Snate@binkert.org'python' first or (2) explicitly invoking an alternative interpreter 925863Snate@binkert.orgon the scons script. 935863Snate@binkert.org 945863Snate@binkert.orgFor more details, see: 955863Snate@binkert.org http://m5sim.org/wiki/index.php/Using_a_non-default_Python_installation 965863Snate@binkert.org""" 975863Snate@binkert.org raise 985863Snate@binkert.org 996654Snate@binkert.orgimport os 100955SN/Aimport re 1015396Ssaidi@eecs.umich.eduimport subprocess 1025863Snate@binkert.orgimport sys 1035863Snate@binkert.org 1044202Sbinkertn@umich.edufrom os import mkdir, environ 1055863Snate@binkert.orgfrom os.path import abspath, basename, dirname, expanduser, normpath 1065863Snate@binkert.orgfrom os.path import exists, isdir, isfile 1075863Snate@binkert.orgfrom os.path import join as joinpath, split as splitpath 1085863Snate@binkert.org 109955SN/Aimport SCons 1106654Snate@binkert.orgimport SCons.Node 1115273Sstever@gmail.com 1125871Snate@binkert.orgdef read_command(cmd, **kwargs): 1135273Sstever@gmail.com """run the command cmd, read the results and return them 1146655Snate@binkert.org this is sorta like `cmd` in shell""" 1156655Snate@binkert.org from subprocess import Popen, PIPE, STDOUT 1166655Snate@binkert.org 1176655Snate@binkert.org if isinstance(cmd, str): 1186655Snate@binkert.org cmd = cmd.split() 1196655Snate@binkert.org 1205871Snate@binkert.org no_exception = 'exception' in kwargs 1216654Snate@binkert.org exception = kwargs.pop('exception', None) 1225396Ssaidi@eecs.umich.edu 1235871Snate@binkert.org kwargs.setdefault('shell', False) 1245871Snate@binkert.org kwargs.setdefault('stdout', PIPE) 1256121Snate@binkert.org kwargs.setdefault('stderr', STDOUT) 1265871Snate@binkert.org kwargs.setdefault('close_fds', True) 1275871Snate@binkert.org try: 1286003Snate@binkert.org subp = Popen(cmd, **kwargs) 1296655Snate@binkert.org except Exception, e: 130955SN/A if no_exception: 1315871Snate@binkert.org return exception 1325871Snate@binkert.org raise 1335871Snate@binkert.org 1345871Snate@binkert.org return subp.communicate()[0] 135955SN/A 1366121Snate@binkert.org# helper function: compare arrays or strings of version numbers. 1376121Snate@binkert.org# E.g., compare_version((1,3,25), (1,4,1)') 1386121Snate@binkert.org# returns -1, 0, 1 if v1 is <, ==, > v2 1391533SN/Adef compare_versions(v1, v2): 1406655Snate@binkert.org def make_version_list(v): 1416655Snate@binkert.org if isinstance(v, (list,tuple)): 1426655Snate@binkert.org return v 1436655Snate@binkert.org elif isinstance(v, str): 1445871Snate@binkert.org return map(lambda x: int(re.match('\d+', x).group()), v.split('.')) 1455871Snate@binkert.org else: 1465863Snate@binkert.org raise TypeError 1475871Snate@binkert.org 1485871Snate@binkert.org v1 = make_version_list(v1) 1495871Snate@binkert.org v2 = make_version_list(v2) 1505871Snate@binkert.org # Compare corresponding elements of lists 1515871Snate@binkert.org for n1,n2 in zip(v1, v2): 1525863Snate@binkert.org if n1 < n2: return -1 1536121Snate@binkert.org if n1 > n2: return 1 1545863Snate@binkert.org # all corresponding values are equal... see if one has extra values 1555871Snate@binkert.org if len(v1) < len(v2): return -1 1564678Snate@binkert.org if len(v1) > len(v2): return 1 1574678Snate@binkert.org return 0 1584678Snate@binkert.org 1594678Snate@binkert.org######################################################################## 1604678Snate@binkert.org# 1614678Snate@binkert.org# Set up the main build environment. 1624678Snate@binkert.org# 1634678Snate@binkert.org######################################################################## 1644678Snate@binkert.orguse_vars = set([ 'AS', 'AR', 'CC', 'CXX', 'HOME', 'LD_LIBRARY_PATH', 'PATH', 1654678Snate@binkert.org 'RANLIB' ]) 1664678Snate@binkert.org 1674678Snate@binkert.orguse_env = {} 1686121Snate@binkert.orgfor key,val in os.environ.iteritems(): 1694678Snate@binkert.org if key in use_vars or key.startswith("M5"): 1705871Snate@binkert.org use_env[key] = val 1715871Snate@binkert.org 1725871Snate@binkert.orgmain = Environment(ENV=use_env) 1735871Snate@binkert.orgmain.root = Dir(".") # The current directory (where this file lives). 1745871Snate@binkert.orgmain.srcdir = Dir("src") # The source directory 1755871Snate@binkert.org 1765871Snate@binkert.org######################################################################## 1775871Snate@binkert.org# 1785871Snate@binkert.org# Mercurial Stuff. 1795871Snate@binkert.org# 1805871Snate@binkert.org# If the M5 directory is a mercurial repository, we should do some 1815871Snate@binkert.org# extra things. 1825871Snate@binkert.org# 1835990Ssaidi@eecs.umich.edu######################################################################## 1845871Snate@binkert.org 1855871Snate@binkert.orghgdir = main.root.Dir(".hg") 1865871Snate@binkert.org 1874678Snate@binkert.orgmercurial_style_message = """ 1886654Snate@binkert.orgYou're missing the M5 style hook. 1895871Snate@binkert.orgPlease install the hook so we can ensure that all code fits a common style. 1905871Snate@binkert.org 1915871Snate@binkert.orgAll you'd need to do is add the following lines to your repository .hg/hgrc 1925871Snate@binkert.orgor your personal .hgrc 1935871Snate@binkert.org---------------- 1945871Snate@binkert.org 1955871Snate@binkert.org[extensions] 1965871Snate@binkert.orgstyle = %s/util/style.py 1975871Snate@binkert.org 1984678Snate@binkert.org[hooks] 1995871Snate@binkert.orgpretxncommit.style = python:style.check_whitespace 2004678Snate@binkert.org""" % (main.root) 2015871Snate@binkert.org 2025871Snate@binkert.orgmercurial_bin_not_found = """ 2035871Snate@binkert.orgMercurial binary cannot be found, unfortunately this means that we 2045871Snate@binkert.orgcannot easily determine the version of M5 that you are running and 2055871Snate@binkert.orgthis makes error messages more difficult to collect. Please consider 2065871Snate@binkert.orginstalling mercurial if you choose to post an error message 2075871Snate@binkert.org""" 2085871Snate@binkert.org 2095871Snate@binkert.orgmercurial_lib_not_found = """ 2106121Snate@binkert.orgMercurial libraries cannot be found, ignoring style hook 2116121Snate@binkert.orgIf you are actually a M5 developer, please fix this and 2125863Snate@binkert.orgrun the style hook. It is important. 213955SN/A""" 214955SN/A 2152632Sstever@eecs.umich.eduhg_info = "Unknown" 2162632Sstever@eecs.umich.eduif hgdir.exists(): 217955SN/A # 1) Grab repository revision if we know it. 218955SN/A cmd = "hg id -n -i -t -b" 219955SN/A try: 220955SN/A hg_info = read_command(cmd, cwd=main.root.abspath).strip() 2215863Snate@binkert.org except OSError: 222955SN/A print mercurial_bin_not_found 2232632Sstever@eecs.umich.edu 2242632Sstever@eecs.umich.edu # 2) Ensure that the style hook is in place. 2252632Sstever@eecs.umich.edu try: 2262632Sstever@eecs.umich.edu ui = None 2272632Sstever@eecs.umich.edu if ARGUMENTS.get('IGNORE_STYLE') != 'True': 2282632Sstever@eecs.umich.edu from mercurial import ui 2292632Sstever@eecs.umich.edu ui = ui.ui() 2302632Sstever@eecs.umich.edu except ImportError: 2312632Sstever@eecs.umich.edu print mercurial_lib_not_found 2322632Sstever@eecs.umich.edu 2332632Sstever@eecs.umich.edu if ui is not None: 2342632Sstever@eecs.umich.edu ui.readconfig(hgdir.File('hgrc').abspath) 2352632Sstever@eecs.umich.edu style_hook = ui.config('hooks', 'pretxncommit.style', None) 2363718Sstever@eecs.umich.edu 2373718Sstever@eecs.umich.edu if not style_hook: 2383718Sstever@eecs.umich.edu print mercurial_style_message 2393718Sstever@eecs.umich.edu sys.exit(1) 2403718Sstever@eecs.umich.eduelse: 2415863Snate@binkert.org print ".hg directory not found" 2425863Snate@binkert.org 2433718Sstever@eecs.umich.edumain['HG_INFO'] = hg_info 2443718Sstever@eecs.umich.edu 2456121Snate@binkert.org################################################### 2465863Snate@binkert.org# 2473718Sstever@eecs.umich.edu# Figure out which configurations to set up based on the path(s) of 2483718Sstever@eecs.umich.edu# the target(s). 2492634Sstever@eecs.umich.edu# 2502634Sstever@eecs.umich.edu################################################### 2515863Snate@binkert.org 2522638Sstever@eecs.umich.edu# Find default configuration & binary. 2532632Sstever@eecs.umich.eduDefault(environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug')) 2542632Sstever@eecs.umich.edu 2552632Sstever@eecs.umich.edu# helper function: find last occurrence of element in list 2562632Sstever@eecs.umich.edudef rfind(l, elt, offs = -1): 2572632Sstever@eecs.umich.edu for i in range(len(l)+offs, 0, -1): 2582632Sstever@eecs.umich.edu if l[i] == elt: 2591858SN/A return i 2603716Sstever@eecs.umich.edu raise ValueError, "element not found" 2612638Sstever@eecs.umich.edu 2622638Sstever@eecs.umich.edu# Each target must have 'build' in the interior of the path; the 2632638Sstever@eecs.umich.edu# directory below this will determine the build parameters. For 2642638Sstever@eecs.umich.edu# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we 2652638Sstever@eecs.umich.edu# recognize that ALPHA_SE specifies the configuration because it 2662638Sstever@eecs.umich.edu# follow 'build' in the bulid path. 2672638Sstever@eecs.umich.edu 2685863Snate@binkert.org# Generate absolute paths to targets so we can see where the build dir is 2695863Snate@binkert.orgif COMMAND_LINE_TARGETS: 2705863Snate@binkert.org # Ask SCons which directory it was invoked from 271955SN/A launch_dir = GetLaunchDir() 2725341Sstever@gmail.com # Make targets relative to invocation directory 2735341Sstever@gmail.com abs_targets = [ normpath(joinpath(launch_dir, str(x))) for x in \ 2745863Snate@binkert.org COMMAND_LINE_TARGETS] 2755341Sstever@gmail.comelse: 2766121Snate@binkert.org # Default targets are relative to root of tree 2774494Ssaidi@eecs.umich.edu abs_targets = [ normpath(joinpath(main.root.abspath, str(x))) for x in \ 2786121Snate@binkert.org DEFAULT_TARGETS] 2791105SN/A 2802667Sstever@eecs.umich.edu 2812667Sstever@eecs.umich.edu# Generate a list of the unique build roots and configs that the 2822667Sstever@eecs.umich.edu# collected targets reference. 2832667Sstever@eecs.umich.eduvariant_paths = [] 2846121Snate@binkert.orgbuild_root = None 2852667Sstever@eecs.umich.edufor t in abs_targets: 2865341Sstever@gmail.com path_dirs = t.split('/') 2875863Snate@binkert.org try: 2885341Sstever@gmail.com build_top = rfind(path_dirs, 'build', -2) 2895341Sstever@gmail.com except: 2905341Sstever@gmail.com print "Error: no non-leaf 'build' dir found on target path", t 2915863Snate@binkert.org Exit(1) 2925341Sstever@gmail.com this_build_root = joinpath('/',*path_dirs[:build_top+1]) 2935341Sstever@gmail.com if not build_root: 2945341Sstever@gmail.com build_root = this_build_root 2955863Snate@binkert.org else: 2965341Sstever@gmail.com if this_build_root != build_root: 2975341Sstever@gmail.com print "Error: build targets not under same build root\n"\ 2985341Sstever@gmail.com " %s\n %s" % (build_root, this_build_root) 2995341Sstever@gmail.com Exit(1) 3005341Sstever@gmail.com variant_path = joinpath('/',*path_dirs[:build_top+2]) 3015341Sstever@gmail.com if variant_path not in variant_paths: 3025341Sstever@gmail.com variant_paths.append(variant_path) 3035341Sstever@gmail.com 3045341Sstever@gmail.com# Make sure build_root exists (might not if this is the first build there) 3055341Sstever@gmail.comif not isdir(build_root): 3065863Snate@binkert.org mkdir(build_root) 3075341Sstever@gmail.com 3085863Snate@binkert.orgExport('main') 3095341Sstever@gmail.com 3105863Snate@binkert.orgmain.SConsignFile(joinpath(build_root, "sconsign")) 3116121Snate@binkert.org 3126121Snate@binkert.org# Default duplicate option is to use hard links, but this messes up 3135397Ssaidi@eecs.umich.edu# when you use emacs to edit a file in the target dir, as emacs moves 3145397Ssaidi@eecs.umich.edu# file to file~ then copies to file, breaking the link. Symbolic 3155341Sstever@gmail.com# (soft) links work better. 3166168Snate@binkert.orgmain.SetOption('duplicate', 'soft-copy') 3176168Snate@binkert.org 3186168Snate@binkert.org# 3195341Sstever@gmail.com# Set up global sticky variables... these are common to an entire build 3205341Sstever@gmail.com# tree (not specific to a particular build like ALPHA_SE) 3215341Sstever@gmail.com# 3225341Sstever@gmail.com 3235341Sstever@gmail.com# Variable validators & converters for global sticky variables 3245863Snate@binkert.orgdef PathListMakeAbsolute(val): 3255341Sstever@gmail.com if not val: 3265341Sstever@gmail.com return val 3276121Snate@binkert.org f = lambda p: abspath(expanduser(p)) 3286121Snate@binkert.org return ':'.join(map(f, val.split(':'))) 3295341Sstever@gmail.com 3306814Sgblack@eecs.umich.edudef PathListAllExist(key, val, env): 3316814Sgblack@eecs.umich.edu if not val: 3325863Snate@binkert.org return 3336121Snate@binkert.org paths = val.split(':') 3345341Sstever@gmail.com for path in paths: 3355863Snate@binkert.org if not isdir(path): 3365341Sstever@gmail.com raise SCons.Errors.UserError("Path does not exist: '%s'" % path) 3376121Snate@binkert.org 3386121Snate@binkert.orgglobal_sticky_vars_file = joinpath(build_root, 'variables.global') 3396121Snate@binkert.org 3405742Snate@binkert.orgglobal_sticky_vars = Variables(global_sticky_vars_file, args=ARGUMENTS) 3415742Snate@binkert.org 3425341Sstever@gmail.comglobal_sticky_vars.AddVariables( 3435742Snate@binkert.org ('CC', 'C compiler', environ.get('CC', main['CC'])), 3445742Snate@binkert.org ('CXX', 'C++ compiler', environ.get('CXX', main['CXX'])), 3455341Sstever@gmail.com ('BATCH', 'Use batch pool for build and tests', False), 3466017Snate@binkert.org ('BATCH_CMD', 'Batch pool submission command name', 'qdo'), 3476121Snate@binkert.org ('EXTRAS', 'Add Extra directories to the compilation', '', 3486017Snate@binkert.org PathListAllExist, PathListMakeAbsolute) 3496654Snate@binkert.org ) 3506654Snate@binkert.org 3515871Snate@binkert.org# base help text 3526121Snate@binkert.orghelp_text = ''' 3536121Snate@binkert.orgUsage: scons [scons options] [build options] [target(s)] 3546121Snate@binkert.org 3556121Snate@binkert.orgGlobal sticky options: 3563940Ssaidi@eecs.umich.edu''' 3573918Ssaidi@eecs.umich.edu 3583918Ssaidi@eecs.umich.eduhelp_text += global_sticky_vars.GenerateHelpText(main) 3591858SN/A 3606121Snate@binkert.org# Update main environment with values from ARGUMENTS & global_sticky_vars_file 3616121Snate@binkert.orgglobal_sticky_vars.Update(main) 3626121Snate@binkert.org 3636143Snate@binkert.org# Save sticky variable settings back to current variables file 3646121Snate@binkert.orgglobal_sticky_vars.Save(global_sticky_vars_file, main) 3656121Snate@binkert.org 3663940Ssaidi@eecs.umich.edu# Parse EXTRAS variable to build list of all directories where we're 3676121Snate@binkert.org# look for sources etc. This list is exported as base_dir_list. 3686121Snate@binkert.orgbase_dir = main.srcdir.abspath 3696121Snate@binkert.orgif main['EXTRAS']: 3706121Snate@binkert.org extras_dir_list = main['EXTRAS'].split(':') 3716121Snate@binkert.orgelse: 3726121Snate@binkert.org extras_dir_list = [] 3736121Snate@binkert.org 3743918Ssaidi@eecs.umich.eduExport('base_dir') 3753918Ssaidi@eecs.umich.eduExport('extras_dir_list') 3763940Ssaidi@eecs.umich.edu 3773918Ssaidi@eecs.umich.edu# the ext directory should be on the #includes path 3783918Ssaidi@eecs.umich.edumain.Append(CPPPATH=[Dir('ext')]) 3796157Snate@binkert.org 3806157Snate@binkert.org# M5_PLY is used by isa_parser.py to find the PLY package. 3816157Snate@binkert.orgmain.Append(ENV = { 'M5_PLY' : Dir('ext/ply').abspath }) 3826157Snate@binkert.org 3835397Ssaidi@eecs.umich.eduCXX_version = read_command([main['CXX'],'--version'], exception=False) 3845397Ssaidi@eecs.umich.eduCXX_V = read_command([main['CXX'],'-V'], exception=False) 3856121Snate@binkert.org 3866121Snate@binkert.orgmain['GCC'] = CXX_version and CXX_version.find('g++') >= 0 3876121Snate@binkert.orgmain['SUNCC'] = CXX_V and CXX_V.find('Sun C++') >= 0 3886121Snate@binkert.orgmain['ICC'] = CXX_V and CXX_V.find('Intel') >= 0 3896121Snate@binkert.orgif main['GCC'] + main['SUNCC'] + main['ICC'] > 1: 3906121Snate@binkert.org print 'Error: How can we have two at the same time?' 3915397Ssaidi@eecs.umich.edu Exit(1) 3921851SN/A 3931851SN/A# Set up default C++ compiler flags 3946655Snate@binkert.orgif main['GCC']: 395955SN/A main.Append(CCFLAGS='-pipe') 3963053Sstever@eecs.umich.edu main.Append(CCFLAGS='-fno-strict-aliasing') 3976121Snate@binkert.org main.Append(CCFLAGS=['-Wall', '-Wno-sign-compare', '-Wundef']) 3983053Sstever@eecs.umich.edu main.Append(CXXFLAGS='-Wno-deprecated') 3993053Sstever@eecs.umich.eduelif main['ICC']: 4003053Sstever@eecs.umich.edu pass #Fix me... add warning flags once we clean up icc warnings 4013053Sstever@eecs.umich.eduelif main['SUNCC']: 4023053Sstever@eecs.umich.edu main.Append(CCFLAGS='-Qoption ccfe') 4036654Snate@binkert.org main.Append(CCFLAGS='-features=gcc') 4043053Sstever@eecs.umich.edu main.Append(CCFLAGS='-features=extensions') 4054742Sstever@eecs.umich.edu main.Append(CCFLAGS='-library=stlport4') 4064742Sstever@eecs.umich.edu main.Append(CCFLAGS='-xar') 4073053Sstever@eecs.umich.edu #main.Append(CCFLAGS='-instances=semiexplicit') 4083053Sstever@eecs.umich.eduelse: 4093053Sstever@eecs.umich.edu print 'Error: Don\'t know what compiler options to use for your compiler.' 4103053Sstever@eecs.umich.edu print ' Please fix SConstruct and src/SConscript and try again.' 4116654Snate@binkert.org Exit(1) 4123053Sstever@eecs.umich.edu 4133053Sstever@eecs.umich.edu# Set up common yacc/bison flags (needed for Ruby) 4143053Sstever@eecs.umich.edumain['YACCFLAGS'] = '-d' 4153053Sstever@eecs.umich.edumain['YACCHXXFILESUFFIX'] = '.hh' 4162667Sstever@eecs.umich.edu 4174554Sbinkertn@umich.edu# Do this after we save setting back, or else we'll tack on an 4186121Snate@binkert.org# extra 'qdo' every time we run scons. 4192667Sstever@eecs.umich.eduif main['BATCH']: 4204554Sbinkertn@umich.edu main['CC'] = main['BATCH_CMD'] + ' ' + main['CC'] 4214554Sbinkertn@umich.edu main['CXX'] = main['BATCH_CMD'] + ' ' + main['CXX'] 4224554Sbinkertn@umich.edu main['AS'] = main['BATCH_CMD'] + ' ' + main['AS'] 4236121Snate@binkert.org main['AR'] = main['BATCH_CMD'] + ' ' + main['AR'] 4244554Sbinkertn@umich.edu main['RANLIB'] = main['BATCH_CMD'] + ' ' + main['RANLIB'] 4254554Sbinkertn@umich.edu 4264554Sbinkertn@umich.eduif sys.platform == 'cygwin': 4274781Snate@binkert.org # cygwin has some header file issues... 4284554Sbinkertn@umich.edu main.Append(CCFLAGS=Split("-Wno-uninitialized")) 4294554Sbinkertn@umich.edu 4302667Sstever@eecs.umich.edu# Check for SWIG 4314554Sbinkertn@umich.eduif not main.has_key('SWIG'): 4324554Sbinkertn@umich.edu print 'Error: SWIG utility not found.' 4334554Sbinkertn@umich.edu print ' Please install (see http://www.swig.org) and retry.' 4344554Sbinkertn@umich.edu Exit(1) 4352667Sstever@eecs.umich.edu 4364554Sbinkertn@umich.edu# Check for appropriate SWIG version 4372667Sstever@eecs.umich.eduswig_version = read_command(('swig', '-version'), exception='').split() 4384554Sbinkertn@umich.edu# First 3 words should be "SWIG Version x.y.z" 4396121Snate@binkert.orgif len(swig_version) < 3 or \ 4402667Sstever@eecs.umich.edu swig_version[0] != 'SWIG' or swig_version[1] != 'Version': 4415522Snate@binkert.org print 'Error determining SWIG version.' 4425522Snate@binkert.org Exit(1) 4435522Snate@binkert.org 4445522Snate@binkert.orgmin_swig_version = '1.3.28' 4455522Snate@binkert.orgif compare_versions(swig_version[2], min_swig_version) < 0: 4465522Snate@binkert.org print 'Error: SWIG version', min_swig_version, 'or newer required.' 4475522Snate@binkert.org print ' Installed version:', swig_version[2] 4485522Snate@binkert.org Exit(1) 4495522Snate@binkert.org 4505522Snate@binkert.org# Set up SWIG flags & scanner 4515522Snate@binkert.orgswig_flags=Split('-c++ -python -modern -templatereduce $_CPPINCFLAGS') 4525522Snate@binkert.orgmain.Append(SWIGFLAGS=swig_flags) 4535522Snate@binkert.org 4545522Snate@binkert.org# filter out all existing swig scanners, they mess up the dependency 4555522Snate@binkert.org# stuff for some reason 4565522Snate@binkert.orgscanners = [] 4575522Snate@binkert.orgfor scanner in main['SCANNERS']: 4585522Snate@binkert.org skeys = scanner.skeys 4595522Snate@binkert.org if skeys == '.i': 4605522Snate@binkert.org continue 4615522Snate@binkert.org 4625522Snate@binkert.org if isinstance(skeys, (list, tuple)) and '.i' in skeys: 4635522Snate@binkert.org continue 4645522Snate@binkert.org 4655522Snate@binkert.org scanners.append(scanner) 4665522Snate@binkert.org 4672638Sstever@eecs.umich.edu# add the new swig scanner that we like better 4682638Sstever@eecs.umich.edufrom SCons.Scanner import ClassicCPP as CPPScanner 4696121Snate@binkert.orgswig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")' 4703716Sstever@eecs.umich.eduscanners.append(CPPScanner("SwigScan", [ ".i" ], "CPPPATH", swig_inc_re)) 4715522Snate@binkert.org 4725522Snate@binkert.org# replace the scanners list that has what we want 4735522Snate@binkert.orgmain['SCANNERS'] = scanners 4745522Snate@binkert.org 4755522Snate@binkert.org# Add a custom Check function to the Configure context so that we can 4765522Snate@binkert.org# figure out if the compiler adds leading underscores to global 4771858SN/A# variables. This is needed for the autogenerated asm files that we 4785227Ssaidi@eecs.umich.edu# use for embedding the python code. 4795227Ssaidi@eecs.umich.edudef CheckLeading(context): 4805227Ssaidi@eecs.umich.edu context.Message("Checking for leading underscore in global variables...") 4815227Ssaidi@eecs.umich.edu # 1) Define a global variable called x from asm so the C compiler 4826654Snate@binkert.org # won't change the symbol at all. 4836654Snate@binkert.org # 2) Declare that variable. 4846121Snate@binkert.org # 3) Use the variable 4856121Snate@binkert.org # 4866121Snate@binkert.org # If the compiler prepends an underscore, this will successfully 4876121Snate@binkert.org # link because the external symbol 'x' will be called '_x' which 4885227Ssaidi@eecs.umich.edu # was defined by the asm statement. If the compiler does not 4895227Ssaidi@eecs.umich.edu # prepend an underscore, this will not successfully link because 4905227Ssaidi@eecs.umich.edu # '_x' will have been defined by assembly, while the C portion of 4915204Sstever@gmail.com # the code will be trying to use 'x' 4925204Sstever@gmail.com ret = context.TryLink(''' 4935204Sstever@gmail.com asm(".globl _x; _x: .byte 0"); 4945204Sstever@gmail.com extern int x; 4955204Sstever@gmail.com int main() { return x; } 4965204Sstever@gmail.com ''', extension=".c") 4975204Sstever@gmail.com context.env.Append(LEADING_UNDERSCORE=ret) 4985204Sstever@gmail.com context.Result(ret) 4995204Sstever@gmail.com return ret 5005204Sstever@gmail.com 5015204Sstever@gmail.com# Platform-specific configuration. Note again that we assume that all 5025204Sstever@gmail.com# builds under a given build root run on the same host platform. 5035204Sstever@gmail.comconf = Configure(main, 5045204Sstever@gmail.com conf_dir = joinpath(build_root, '.scons_config'), 5055204Sstever@gmail.com log_file = joinpath(build_root, 'scons_config.log'), 5065204Sstever@gmail.com custom_tests = { 'CheckLeading' : CheckLeading }) 5075204Sstever@gmail.com 5086121Snate@binkert.org# Check for leading underscores. Don't really need to worry either 5095204Sstever@gmail.com# way so don't need to check the return code. 5103118Sstever@eecs.umich.educonf.CheckLeading() 5113118Sstever@eecs.umich.edu 5123118Sstever@eecs.umich.edu# Check if we should compile a 64 bit binary on Mac OS X/Darwin 5133118Sstever@eecs.umich.edutry: 5143118Sstever@eecs.umich.edu import platform 5155863Snate@binkert.org uname = platform.uname() 5163118Sstever@eecs.umich.edu if uname[0] == 'Darwin' and compare_versions(uname[2], '9.0.0') >= 0: 5175863Snate@binkert.org if int(read_command('sysctl -n hw.cpu64bit_capable')[0]): 5183118Sstever@eecs.umich.edu main.Append(CCFLAGS='-arch x86_64') 5195863Snate@binkert.org main.Append(CFLAGS='-arch x86_64') 5205863Snate@binkert.org main.Append(LINKFLAGS='-arch x86_64') 5215863Snate@binkert.org main.Append(ASFLAGS='-arch x86_64') 5225863Snate@binkert.orgexcept: 5235863Snate@binkert.org pass 5245863Snate@binkert.org 5255863Snate@binkert.org# Recent versions of scons substitute a "Null" object for Configure() 5265863Snate@binkert.org# when configuration isn't necessary, e.g., if the "--help" option is 5276003Snate@binkert.org# present. Unfortuantely this Null object always returns false, 5285863Snate@binkert.org# breaking all our configuration checks. We replace it with our own 5295863Snate@binkert.org# more optimistic null object that returns True instead. 5305863Snate@binkert.orgif not conf: 5316120Snate@binkert.org def NullCheck(*args, **kwargs): 5325863Snate@binkert.org return True 5335863Snate@binkert.org 5345863Snate@binkert.org class NullConf: 5356120Snate@binkert.org def __init__(self, env): 5366120Snate@binkert.org self.env = env 5375863Snate@binkert.org def Finish(self): 5385863Snate@binkert.org return self.env 5396120Snate@binkert.org def __getattr__(self, mname): 5405863Snate@binkert.org return NullCheck 5416121Snate@binkert.org 5426121Snate@binkert.org conf = NullConf(main) 5435863Snate@binkert.org 5445863Snate@binkert.org# Find Python include and library directories for embedding the 5453118Sstever@eecs.umich.edu# interpreter. For consistency, we will use the same Python 5465863Snate@binkert.org# installation used to run scons (and thus this script). If you want 5473118Sstever@eecs.umich.edu# to link in an alternate version, see above for instructions on how 5483118Sstever@eecs.umich.edu# to invoke scons with a different copy of the Python interpreter. 5495863Snate@binkert.orgfrom distutils import sysconfig 5505863Snate@binkert.org 5515863Snate@binkert.orgpy_getvar = sysconfig.get_config_var 5525863Snate@binkert.org 5533118Sstever@eecs.umich.edupy_version = 'python' + py_getvar('VERSION') 5543483Ssaidi@eecs.umich.edu 5553494Ssaidi@eecs.umich.edupy_general_include = sysconfig.get_python_inc() 5563494Ssaidi@eecs.umich.edupy_platform_include = sysconfig.get_python_inc(plat_specific=True) 5573483Ssaidi@eecs.umich.edupy_includes = [ py_general_include ] 5583483Ssaidi@eecs.umich.eduif py_platform_include != py_general_include: 5593483Ssaidi@eecs.umich.edu py_includes.append(py_platform_include) 5603053Sstever@eecs.umich.edu 5613053Sstever@eecs.umich.edupy_lib_path = [ py_getvar('LIBDIR') ] 5623918Ssaidi@eecs.umich.edu# add the prefix/lib/pythonX.Y/config dir, but only if there is no 5633053Sstever@eecs.umich.edu# shared library in prefix/lib/. 5643053Sstever@eecs.umich.eduif not py_getvar('Py_ENABLE_SHARED'): 5653053Sstever@eecs.umich.edu py_lib_path.append(py_getvar('LIBPL')) 5663053Sstever@eecs.umich.edu 5673053Sstever@eecs.umich.edupy_libs = [] 5681858SN/Afor lib in py_getvar('LIBS').split() + py_getvar('SYSLIBS').split(): 5691858SN/A assert lib.startswith('-l') 5701858SN/A lib = lib[2:] 5711858SN/A if lib not in py_libs: 5721858SN/A py_libs.append(lib) 5731858SN/Apy_libs.append(py_version) 5745863Snate@binkert.org 5755863Snate@binkert.orgmain.Append(CPPPATH=py_includes) 5761859SN/Amain.Append(LIBPATH=py_lib_path) 5775863Snate@binkert.org 5781858SN/A# verify that this stuff works 5795863Snate@binkert.orgif not conf.CheckHeader('Python.h', '<>'): 5801858SN/A print "Error: can't find Python.h header in", py_includes 5811859SN/A Exit(1) 5821859SN/A 5836654Snate@binkert.orgfor lib in py_libs: 5843053Sstever@eecs.umich.edu if not conf.CheckLib(lib): 5856654Snate@binkert.org print "Error: can't find library %s required by python" % lib 5863053Sstever@eecs.umich.edu Exit(1) 5873053Sstever@eecs.umich.edu 5881859SN/A# On Solaris you need to use libsocket for socket ops 5891859SN/Aif not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'): 5901859SN/A if not conf.CheckLibWithHeader('socket', 'sys/socket.h', 'C++', 'accept(0,0,0);'): 5911859SN/A print "Can't find library with socket calls (e.g. accept())" 5921859SN/A Exit(1) 5931859SN/A 5941859SN/A# Check for zlib. If the check passes, libz will be automatically 5951859SN/A# added to the LIBS environment variable. 5961862SN/Aif not conf.CheckLibWithHeader('z', 'zlib.h', 'C++','zlibVersion();'): 5971859SN/A print 'Error: did not find needed zlib compression library '\ 5981859SN/A 'and/or zlib.h header file.' 5991859SN/A print ' Please install zlib and try again.' 6005863Snate@binkert.org Exit(1) 6015863Snate@binkert.org 6025863Snate@binkert.org# Check for <fenv.h> (C99 FP environment control) 6035863Snate@binkert.orghave_fenv = conf.CheckHeader('fenv.h', '<>') 6046121Snate@binkert.orgif not have_fenv: 6051858SN/A print "Warning: Header file <fenv.h> not found." 6065863Snate@binkert.org print " This host has no IEEE FP rounding mode control." 6075863Snate@binkert.org 6085863Snate@binkert.org###################################################################### 6095863Snate@binkert.org# 6105863Snate@binkert.org# Check for mysql. 6112139SN/A# 6124202Sbinkertn@umich.edumysql_config = WhereIs('mysql_config') 6134202Sbinkertn@umich.eduhave_mysql = bool(mysql_config) 6142139SN/A 6152155SN/A# Check MySQL version. 6164202Sbinkertn@umich.eduif have_mysql: 6174202Sbinkertn@umich.edu mysql_version = read_command(mysql_config + ' --version') 6184202Sbinkertn@umich.edu min_mysql_version = '4.1' 6192155SN/A if compare_versions(mysql_version, min_mysql_version) < 0: 6205863Snate@binkert.org print 'Warning: MySQL', min_mysql_version, 'or newer required.' 6211869SN/A print ' Version', mysql_version, 'detected.' 6221869SN/A have_mysql = False 6235863Snate@binkert.org 6245863Snate@binkert.org# Set up mysql_config commands. 6254202Sbinkertn@umich.eduif have_mysql: 6266108Snate@binkert.org mysql_config_include = mysql_config + ' --include' 6276108Snate@binkert.org if os.system(mysql_config_include + ' > /dev/null') != 0: 6286108Snate@binkert.org # older mysql_config versions don't support --include, use 6296108Snate@binkert.org # --cflags instead 6305863Snate@binkert.org mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g' 6315863Snate@binkert.org # This seems to work in all versions 6325863Snate@binkert.org mysql_config_libs = mysql_config + ' --libs' 6334202Sbinkertn@umich.edu 6344202Sbinkertn@umich.edu###################################################################### 6355863Snate@binkert.org# 6365742Snate@binkert.org# Finish the configuration 6375742Snate@binkert.org# 6385341Sstever@gmail.commain = conf.Finish() 6395342Sstever@gmail.com 6405342Sstever@gmail.com###################################################################### 6414202Sbinkertn@umich.edu# 6424202Sbinkertn@umich.edu# Collect all non-global variables 6434202Sbinkertn@umich.edu# 6444202Sbinkertn@umich.edu 6454202Sbinkertn@umich.edu# Define the universe of supported ISAs 6465863Snate@binkert.orgall_isa_list = [ ] 6475863Snate@binkert.orgExport('all_isa_list') 6485863Snate@binkert.org 6495863Snate@binkert.org# Define the universe of supported CPU models 6505863Snate@binkert.orgall_cpu_list = [ ] 6515863Snate@binkert.orgdefault_cpus = [ ] 6525863Snate@binkert.orgExport('all_cpu_list', 'default_cpus') 6535863Snate@binkert.org 6545863Snate@binkert.org# Sticky variables get saved in the variables file so they persist from 6555863Snate@binkert.org# one invocation to the next (unless overridden, in which case the new 6565863Snate@binkert.org# value becomes sticky). 6575863Snate@binkert.orgsticky_vars = Variables(args=ARGUMENTS) 6585863Snate@binkert.orgExport('sticky_vars') 6595863Snate@binkert.org 6605863Snate@binkert.org# Sticky variables that should be exported 6615863Snate@binkert.orgexport_vars = [] 6625863Snate@binkert.orgExport('export_vars') 6635863Snate@binkert.org 6645863Snate@binkert.org# Non-sticky variables only apply to the current build. 6655863Snate@binkert.orgnonsticky_vars = Variables(args=ARGUMENTS) 6665952Ssaidi@eecs.umich.eduExport('nonsticky_vars') 6671869SN/A 6681858SN/A# Walk the tree and execute all SConsopts scripts that wil add to the 6695863Snate@binkert.org# above variables 6705863Snate@binkert.orgfor bdir in [ base_dir ] + extras_dir_list: 6711869SN/A for root, dirs, files in os.walk(bdir): 6721858SN/A if 'SConsopts' in files: 6735863Snate@binkert.org print "Reading", joinpath(root, 'SConsopts') 6746108Snate@binkert.org SConscript(joinpath(root, 'SConsopts')) 6756108Snate@binkert.org 6766108Snate@binkert.orgall_isa_list.sort() 6771858SN/Aall_cpu_list.sort() 678955SN/Adefault_cpus.sort() 679955SN/A 6801869SN/Asticky_vars.AddVariables( 6811869SN/A EnumVariable('TARGET_ISA', 'Target ISA', 'alpha', all_isa_list), 6821869SN/A BoolVariable('FULL_SYSTEM', 'Full-system support', False), 6831869SN/A ListVariable('CPU_MODELS', 'CPU models', default_cpus, all_cpu_list), 6841869SN/A BoolVariable('NO_FAST_ALLOC', 'Disable fast object allocator', False), 6855863Snate@binkert.org BoolVariable('FAST_ALLOC_DEBUG', 'Enable fast object allocator debugging', 6865863Snate@binkert.org False), 6875863Snate@binkert.org BoolVariable('FAST_ALLOC_STATS', 'Enable fast object allocator statistics', 6881869SN/A False), 6895863Snate@binkert.org BoolVariable('EFENCE', 'Link with Electric Fence malloc debugger', 6901869SN/A False), 6915863Snate@binkert.org BoolVariable('SS_COMPATIBLE_FP', 6921869SN/A 'Make floating-point results compatible with SimpleScalar', 6931869SN/A False), 6941869SN/A BoolVariable('USE_SSE2', 6951869SN/A 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts', 6961869SN/A False), 6975863Snate@binkert.org BoolVariable('USE_MYSQL', 'Use MySQL for stats output', have_mysql), 6985863Snate@binkert.org BoolVariable('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv), 6991869SN/A BoolVariable('USE_CHECKER', 'Use checker for detailed CPU models', False), 7001869SN/A BoolVariable('CP_ANNOTATE', 'Enable critical path annotation capability', False), 7011869SN/A ) 7021869SN/A 7031869SN/Anonsticky_vars.AddVariables( 7041869SN/A BoolVariable('update_ref', 'Update test reference outputs', False) 7051869SN/A ) 7065863Snate@binkert.org 7075863Snate@binkert.org# These variables get exported to #defines in config/*.hh (see src/SConscript). 7081869SN/Aexport_vars += ['FULL_SYSTEM', 'USE_FENV', 'USE_MYSQL', 7095863Snate@binkert.org 'NO_FAST_ALLOC', 'FAST_ALLOC_DEBUG', 'FAST_ALLOC_STATS', 7105863Snate@binkert.org 'SS_COMPATIBLE_FP', 'USE_CHECKER', 'TARGET_ISA', 'CP_ANNOTATE'] 7113356Sbinkertn@umich.edu 7123356Sbinkertn@umich.edu################################################### 7133356Sbinkertn@umich.edu# 7143356Sbinkertn@umich.edu# Define a SCons builder for configuration flag headers. 7153356Sbinkertn@umich.edu# 7164781Snate@binkert.org################################################### 7175863Snate@binkert.org 7185863Snate@binkert.org# This function generates a config header file that #defines the 7191869SN/A# variable symbol to the current variable setting (0 or 1). The source 7201869SN/A# operands are the name of the variable and a Value node containing the 7211869SN/A# value of the variable. 7226121Snate@binkert.orgdef build_config_file(target, source, env): 7231869SN/A (variable, value) = [s.get_contents() for s in source] 7242638Sstever@eecs.umich.edu f = file(str(target[0]), 'w') 7256121Snate@binkert.org print >> f, '#define', variable, value 7266121Snate@binkert.org f.close() 7272638Sstever@eecs.umich.edu return None 7285749Scws3k@cs.virginia.edu 7296121Snate@binkert.org# Generate the message to be printed when building the config file. 7306121Snate@binkert.orgdef build_config_file_string(target, source, env): 7315749Scws3k@cs.virginia.edu (variable, value) = [s.get_contents() for s in source] 7321869SN/A return "Defining %s as %s in %s." % (variable, value, target[0]) 7331869SN/A 7343546Sgblack@eecs.umich.edu# Combine the two functions into a scons Action object. 7353546Sgblack@eecs.umich.educonfig_action = Action(build_config_file, build_config_file_string) 7363546Sgblack@eecs.umich.edu 7373546Sgblack@eecs.umich.edu# The emitter munges the source & target node lists to reflect what 7386121Snate@binkert.org# we're really doing. 7395863Snate@binkert.orgdef config_emitter(target, source, env): 7403546Sgblack@eecs.umich.edu # extract variable name from Builder arg 7413546Sgblack@eecs.umich.edu variable = str(target[0]) 7423546Sgblack@eecs.umich.edu # True target is config header file 7433546Sgblack@eecs.umich.edu target = joinpath('config', variable.lower() + '.hh') 7444781Snate@binkert.org val = env[variable] 7454781Snate@binkert.org if isinstance(val, bool): 7466658Snate@binkert.org # Force value to 0/1 7476658Snate@binkert.org val = int(val) 7484781Snate@binkert.org elif isinstance(val, str): 7493546Sgblack@eecs.umich.edu val = '"' + val + '"' 7503546Sgblack@eecs.umich.edu 7513546Sgblack@eecs.umich.edu # Sources are variable name & value (packaged in SCons Value nodes) 7524781Snate@binkert.org return ([target], [Value(variable), Value(val)]) 7533546Sgblack@eecs.umich.edu 7543546Sgblack@eecs.umich.educonfig_builder = Builder(emitter = config_emitter, action = config_action) 7553546Sgblack@eecs.umich.edu 7563546Sgblack@eecs.umich.edumain.Append(BUILDERS = { 'ConfigFile' : config_builder }) 7573546Sgblack@eecs.umich.edu 7583546Sgblack@eecs.umich.edu# libelf build is shared across all configs in the build root. 7593546Sgblack@eecs.umich.edumain.SConscript('ext/libelf/SConscript', 7603546Sgblack@eecs.umich.edu variant_dir = joinpath(build_root, 'libelf')) 7613546Sgblack@eecs.umich.edu 7623546Sgblack@eecs.umich.edu# gzstream build is shared across all configs in the build root. 7634202Sbinkertn@umich.edumain.SConscript('ext/gzstream/SConscript', 7643546Sgblack@eecs.umich.edu variant_dir = joinpath(build_root, 'gzstream')) 7653546Sgblack@eecs.umich.edu 7663546Sgblack@eecs.umich.edu################################################### 767955SN/A# 768955SN/A# This function is used to set up a directory with switching headers 769955SN/A# 770955SN/A################################################### 7715863Snate@binkert.org 7725863Snate@binkert.orgmain['ALL_ISA_LIST'] = all_isa_list 7735343Sstever@gmail.comdef make_switching_dir(dname, switch_headers, env): 7745343Sstever@gmail.com # Generate the header. target[0] is the full path of the output 7756121Snate@binkert.org # header to generate. 'source' is a dummy variable, since we get the 7765863Snate@binkert.org # list of ISAs from env['ALL_ISA_LIST']. 7774773Snate@binkert.org def gen_switch_hdr(target, source, env): 7785863Snate@binkert.org fname = str(target[0]) 7792632Sstever@eecs.umich.edu bname = basename(fname) 7805863Snate@binkert.org f = open(fname, 'w') 7812023SN/A f.write('#include "arch/isa_specific.hh"\n') 7825863Snate@binkert.org cond = '#if' 7835863Snate@binkert.org for isa in all_isa_list: 7845863Snate@binkert.org f.write('%s THE_ISA == %s_ISA\n#include "%s/%s/%s"\n' 7855863Snate@binkert.org % (cond, isa.upper(), dname, isa, bname)) 7865863Snate@binkert.org cond = '#elif' 7875863Snate@binkert.org f.write('#else\n#error "THE_ISA not set"\n#endif\n') 7885863Snate@binkert.org f.close() 7895863Snate@binkert.org return 0 7905863Snate@binkert.org 7912632Sstever@eecs.umich.edu # String to print when generating header 7925863Snate@binkert.org def gen_switch_hdr_string(target, source, env): 7932023SN/A return "Generating switch header " + str(target[0]) 7942632Sstever@eecs.umich.edu 7955863Snate@binkert.org # Build SCons Action object. 'varlist' specifies env vars that this 7965342Sstever@gmail.com # action depends on; when env['ALL_ISA_LIST'] changes these actions 7975863Snate@binkert.org # should get re-executed. 7982632Sstever@eecs.umich.edu switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string, 7995863Snate@binkert.org varlist=['ALL_ISA_LIST']) 8005863Snate@binkert.org 8012632Sstever@eecs.umich.edu # Instantiate actions for each header 8025863Snate@binkert.org for hdr in switch_headers: 8035863Snate@binkert.org env.Command(hdr, [], switch_hdr_action) 8045863Snate@binkert.orgExport('make_switching_dir') 8055863Snate@binkert.org 8065863Snate@binkert.org################################################### 8075863Snate@binkert.org# 8082632Sstever@eecs.umich.edu# Define build environments for selected configurations. 8095863Snate@binkert.org# 8105863Snate@binkert.org################################################### 8112632Sstever@eecs.umich.edu 8121888SN/Afor variant_path in variant_paths: 8135863Snate@binkert.org print "Building in", variant_path 8145863Snate@binkert.org 8155863Snate@binkert.org # Make a copy of the build-root environment to use for this config. 8161858SN/A env = main.Clone() 8175863Snate@binkert.org env['BUILDDIR'] = variant_path 8185863Snate@binkert.org 8195863Snate@binkert.org # variant_dir is the tail component of build path, and is used to 8205863Snate@binkert.org # determine the build parameters (e.g., 'ALPHA_SE') 8212598SN/A (build_root, variant_dir) = splitpath(variant_path) 8225863Snate@binkert.org 8231858SN/A # Set env variables according to the build directory config. 8241858SN/A sticky_vars.files = [] 8251858SN/A # Variables for $BUILD_ROOT/$VARIANT_DIR are stored in 8265863Snate@binkert.org # $BUILD_ROOT/variables/$VARIANT_DIR so you can nuke 8271858SN/A # $BUILD_ROOT/$VARIANT_DIR without losing your variables settings. 8281858SN/A current_vars_file = joinpath(build_root, 'variables', variant_dir) 8291858SN/A if isfile(current_vars_file): 8305863Snate@binkert.org sticky_vars.files.append(current_vars_file) 8311871SN/A print "Using saved variables file %s" % current_vars_file 8321858SN/A else: 8331858SN/A # Build dir-specific variables file doesn't exist. 8341858SN/A 8351858SN/A # Make sure the directory is there so we can create it later 8361858SN/A opt_dir = dirname(current_vars_file) 8371858SN/A if not isdir(opt_dir): 8381858SN/A mkdir(opt_dir) 8395863Snate@binkert.org 8401858SN/A # Get default build variables from source tree. Variables are 8411858SN/A # normally determined by name of $VARIANT_DIR, but can be 8425863Snate@binkert.org # overriden by 'default=' arg on command line. 8431859SN/A default_vars_file = joinpath('build_opts', 8441859SN/A ARGUMENTS.get('default', variant_dir)) 8451869SN/A if isfile(default_vars_file): 8465863Snate@binkert.org sticky_vars.files.append(default_vars_file) 8475863Snate@binkert.org print "Variables file %s not found,\n using defaults in %s" \ 8481869SN/A % (current_vars_file, default_vars_file) 8491965SN/A else: 8501965SN/A print "Error: cannot find variables file %s or %s" \ 8511965SN/A % (current_vars_file, default_vars_file) 8522761Sstever@eecs.umich.edu Exit(1) 8535863Snate@binkert.org 8541869SN/A # Apply current variable settings to env 8555863Snate@binkert.org sticky_vars.Update(env) 8562667Sstever@eecs.umich.edu nonsticky_vars.Update(env) 8571869SN/A 8581869SN/A help_text += "\nSticky variables for %s:\n" % variant_dir \ 8592929Sktlim@umich.edu + sticky_vars.GenerateHelpText(env) \ 8602929Sktlim@umich.edu + "\nNon-sticky variables for %s:\n" % variant_dir \ 8615863Snate@binkert.org + nonsticky_vars.GenerateHelpText(env) 8622929Sktlim@umich.edu 863955SN/A # Process variable settings. 8642598SN/A 865 if not have_fenv and env['USE_FENV']: 866 print "Warning: <fenv.h> not available; " \ 867 "forcing USE_FENV to False in", variant_dir + "." 868 env['USE_FENV'] = False 869 870 if not env['USE_FENV']: 871 print "Warning: No IEEE FP rounding mode control in", variant_dir + "." 872 print " FP results may deviate slightly from other platforms." 873 874 if env['EFENCE']: 875 env.Append(LIBS=['efence']) 876 877 if env['USE_MYSQL']: 878 if not have_mysql: 879 print "Warning: MySQL not available; " \ 880 "forcing USE_MYSQL to False in", variant_dir + "." 881 env['USE_MYSQL'] = False 882 else: 883 print "Compiling in", variant_dir, "with MySQL support." 884 env.ParseConfig(mysql_config_libs) 885 env.ParseConfig(mysql_config_include) 886 887 # Save sticky variable settings back to current variables file 888 sticky_vars.Save(current_vars_file, env) 889 890 if env['USE_SSE2']: 891 env.Append(CCFLAGS='-msse2') 892 893 # The src/SConscript file sets up the build rules in 'env' according 894 # to the configured variables. It returns a list of environments, 895 # one for each variant build (debug, opt, etc.) 896 envList = SConscript('src/SConscript', variant_dir = variant_path, 897 exports = 'env') 898 899 # Set up the regression tests for each build. 900 for e in envList: 901 SConscript('tests/SConscript', 902 variant_dir = joinpath(variant_path, 'tests', e.Label), 903 exports = { 'env' : e }, duplicate = False) 904 905Help(help_text) 906