SConstruct revision 5863
1955SN/A# -*- mode:python -*- 2955SN/A 31762SN/A# Copyright (c) 2004-2005 The Regents of The University of Michigan 4955SN/A# All rights reserved. 5955SN/A# 6955SN/A# Redistribution and use in source and binary forms, with or without 7955SN/A# modification, are permitted provided that the following conditions are 8955SN/A# met: redistributions of source code must retain the above copyright 9955SN/A# notice, this list of conditions and the following disclaimer; 10955SN/A# redistributions in binary form must reproduce the above copyright 11955SN/A# notice, this list of conditions and the following disclaimer in the 12955SN/A# documentation and/or other materials provided with the distribution; 13955SN/A# neither the name of the copyright holders nor the names of its 14955SN/A# contributors may be used to endorse or promote products derived from 15955SN/A# this software without specific prior written permission. 16955SN/A# 17955SN/A# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18955SN/A# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19955SN/A# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20955SN/A# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21955SN/A# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22955SN/A# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23955SN/A# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24955SN/A# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25955SN/A# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26955SN/A# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27955SN/A# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 282665Ssaidi@eecs.umich.edu# 292665Ssaidi@eecs.umich.edu# Authors: Steve Reinhardt 305863Snate@binkert.org# Nathan Binkert 31955SN/A 32955SN/A################################################### 33955SN/A# 34955SN/A# SCons top-level build description (SConstruct) file. 35955SN/A# 362632Sstever@eecs.umich.edu# While in this directory ('m5'), just type 'scons' to build the default 372632Sstever@eecs.umich.edu# configuration (see below), or type 'scons build/<CONFIG>/<binary>' 382632Sstever@eecs.umich.edu# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for 392632Sstever@eecs.umich.edu# the optimized full-system version). 40955SN/A# 412632Sstever@eecs.umich.edu# You can build M5 in a different directory as long as there is a 422632Sstever@eecs.umich.edu# 'build/<CONFIG>' somewhere along the target path. The build system 432761Sstever@eecs.umich.edu# expects that all configs under the same build directory are being 442632Sstever@eecs.umich.edu# built for the same host system. 452632Sstever@eecs.umich.edu# 462632Sstever@eecs.umich.edu# Examples: 472761Sstever@eecs.umich.edu# 482761Sstever@eecs.umich.edu# The following two commands are equivalent. The '-u' option tells 492761Sstever@eecs.umich.edu# scons to search up the directory tree for this SConstruct file. 502632Sstever@eecs.umich.edu# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug 512632Sstever@eecs.umich.edu# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug 522761Sstever@eecs.umich.edu# 532761Sstever@eecs.umich.edu# The following two commands are equivalent and demonstrate building 542761Sstever@eecs.umich.edu# in a directory outside of the source tree. The '-C' option tells 552761Sstever@eecs.umich.edu# scons to chdir to the specified directory to find this SConstruct 562761Sstever@eecs.umich.edu# file. 572632Sstever@eecs.umich.edu# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug 582632Sstever@eecs.umich.edu# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug 592632Sstever@eecs.umich.edu# 602632Sstever@eecs.umich.edu# You can use 'scons -H' to print scons options. If you're in this 612632Sstever@eecs.umich.edu# 'm5' directory (or use -u or -C to tell scons where to find this 622632Sstever@eecs.umich.edu# file), you can use 'scons -h' to print all the M5-specific build 632632Sstever@eecs.umich.edu# options as well. 64955SN/A# 65955SN/A################################################### 66955SN/A 675863Snate@binkert.org# Check for recent-enough Python and SCons versions. 685863Snate@binkert.orgtry: 695863Snate@binkert.org # Really old versions of scons only take two options for the 705863Snate@binkert.org # function, so check once without the revision and once with the 715863Snate@binkert.org # revision, the first instance will fail for stuff other than 725863Snate@binkert.org # 0.98, and the second will fail for 0.98.0 735863Snate@binkert.org EnsureSConsVersion(0, 98) 745863Snate@binkert.org EnsureSConsVersion(0, 98, 1) 755863Snate@binkert.orgexcept SystemExit, e: 765863Snate@binkert.org print """ 775863Snate@binkert.orgFor more details, see: 785863Snate@binkert.org http://m5sim.org/wiki/index.php/Compiling_M5 795863Snate@binkert.org""" 805863Snate@binkert.org raise 815863Snate@binkert.org 825863Snate@binkert.org# We ensure the python version early because we have stuff that 835863Snate@binkert.org# requires python 2.4 845863Snate@binkert.orgtry: 855863Snate@binkert.org EnsurePythonVersion(2, 4) 865863Snate@binkert.orgexcept SystemExit, e: 875863Snate@binkert.org print """ 885863Snate@binkert.orgYou can use a non-default installation of the Python interpreter by 895863Snate@binkert.orgeither (1) rearranging your PATH so that scons finds the non-default 905863Snate@binkert.org'python' first or (2) explicitly invoking an alternative interpreter 915863Snate@binkert.orgon the scons script. 925863Snate@binkert.org 935863Snate@binkert.orgFor more details, see: 945863Snate@binkert.org http://m5sim.org/wiki/index.php/Using_a_non-default_Python_installation 955863Snate@binkert.org""" 965863Snate@binkert.org raise 975863Snate@binkert.org 98955SN/Aimport os 995396Ssaidi@eecs.umich.eduimport re 1005863Snate@binkert.orgimport subprocess 1015863Snate@binkert.orgimport sys 1024202Sbinkertn@umich.edu 1035863Snate@binkert.orgfrom os import mkdir, environ 1045863Snate@binkert.orgfrom os.path import abspath, basename, dirname, expanduser, normpath 1055863Snate@binkert.orgfrom os.path import exists, isdir, isfile 1065863Snate@binkert.orgfrom os.path import join as joinpath, split as splitpath 107955SN/A 1085273Sstever@gmail.comimport SCons 1095273Sstever@gmail.com 1105863Snate@binkert.orgdef read_command(cmd): 1115863Snate@binkert.org """run the command cmd, read the results and return them 1125863Snate@binkert.org this is sorta like `cmd` in shell""" 1135863Snate@binkert.org from subprocess import Popen, PIPE, STDOUT 1145863Snate@binkert.org subp = Popen(cmd, shell=True, stdout=PIPE, stderr=STDOUT, close_fds=True) 1155863Snate@binkert.org return subp.communicate()[0] 1165227Ssaidi@eecs.umich.edu 1175396Ssaidi@eecs.umich.edu# helper function: compare arrays or strings of version numbers. 1185396Ssaidi@eecs.umich.edu# E.g., compare_version((1,3,25), (1,4,1)') 1195396Ssaidi@eecs.umich.edu# returns -1, 0, 1 if v1 is <, ==, > v2 1205396Ssaidi@eecs.umich.edudef compare_versions(v1, v2): 1215396Ssaidi@eecs.umich.edu def make_version_list(v): 1225396Ssaidi@eecs.umich.edu if isinstance(v, (list,tuple)): 1235396Ssaidi@eecs.umich.edu return v 1245396Ssaidi@eecs.umich.edu elif isinstance(v, str): 1255588Ssaidi@eecs.umich.edu return map(lambda x: int(re.match('\d+', x).group()), v.split('.')) 1265396Ssaidi@eecs.umich.edu else: 1275396Ssaidi@eecs.umich.edu raise TypeError 1285396Ssaidi@eecs.umich.edu 1295396Ssaidi@eecs.umich.edu v1 = make_version_list(v1) 1305396Ssaidi@eecs.umich.edu v2 = make_version_list(v2) 1315396Ssaidi@eecs.umich.edu # Compare corresponding elements of lists 1325396Ssaidi@eecs.umich.edu for n1,n2 in zip(v1, v2): 1335396Ssaidi@eecs.umich.edu if n1 < n2: return -1 1345396Ssaidi@eecs.umich.edu if n1 > n2: return 1 1355396Ssaidi@eecs.umich.edu # all corresponding values are equal... see if one has extra values 1365396Ssaidi@eecs.umich.edu if len(v1) < len(v2): return -1 1375396Ssaidi@eecs.umich.edu if len(v1) > len(v2): return 1 1385396Ssaidi@eecs.umich.edu return 0 1395396Ssaidi@eecs.umich.edu 140955SN/A# The absolute path to the current directory (where this file lives). 141955SN/AROOT = Dir('.').abspath 142955SN/A 1433717Sstever@eecs.umich.edu# Path to the M5 source tree. 1443716Sstever@eecs.umich.eduSRCDIR = joinpath(ROOT, 'src') 145955SN/A 1461533SN/A# tell python where to find m5 python code 1473716Sstever@eecs.umich.edusys.path.append(joinpath(ROOT, 'src/python')) 1481533SN/A 1495863Snate@binkert.org################################################### 1505863Snate@binkert.org# Mercurial Stuff. 1515863Snate@binkert.org# 1) Grab repository revision if we know it. 1525863Snate@binkert.org# 2) Ensure that the style hook is in place. 1535863Snate@binkert.org################################################### 1545863Snate@binkert.org 1555863Snate@binkert.orghg_info = "Unknown" 1565863Snate@binkert.orgtry: 1575863Snate@binkert.org if not exists(ROOT) or not isdir(ROOT) or \ 1585863Snate@binkert.org not exists(joinpath(ROOT, ".hg")): 1595863Snate@binkert.org raise ValueError(".hg directory not found") 1605863Snate@binkert.org hg_info = read_command("cd %s; hg id -n -i -t -b" % ROOT).strip() 1615863Snate@binkert.orgexcept ImportError, e: 1625863Snate@binkert.org print "Mercurial not found" 1635863Snate@binkert.orgexcept ValueError, e: 1645863Snate@binkert.org print e 1655863Snate@binkert.orgexcept Exception, e: 1665863Snate@binkert.org print "Other mercurial exception: %s" % e 1675863Snate@binkert.org 1684678Snate@binkert.orgdef check_style_hook(ui): 1694678Snate@binkert.org ui.readconfig(joinpath(ROOT, '.hg', 'hgrc')) 1704678Snate@binkert.org style_hook = ui.config('hooks', 'pretxncommit.style', None) 1714678Snate@binkert.org 1724678Snate@binkert.org if not style_hook: 1734678Snate@binkert.org print """\ 1744678Snate@binkert.orgYou're missing the M5 style hook. 1754678Snate@binkert.orgPlease install the hook so we can ensure that all code fits a common style. 1764678Snate@binkert.org 1774678Snate@binkert.orgAll you'd need to do is add the following lines to your repository .hg/hgrc 1784678Snate@binkert.orgor your personal .hgrc 1794678Snate@binkert.org---------------- 1804678Snate@binkert.org 1814678Snate@binkert.org[extensions] 1824678Snate@binkert.orgstyle = %s/util/style.py 1834678Snate@binkert.org 1844678Snate@binkert.org[hooks] 1854678Snate@binkert.orgpretxncommit.style = python:style.check_whitespace 1864678Snate@binkert.org""" % (ROOT) 1874678Snate@binkert.org sys.exit(1) 1884678Snate@binkert.org 1894973Ssaidi@eecs.umich.eduif ARGUMENTS.get('IGNORE_STYLE') != 'True' and isdir(joinpath(ROOT, '.hg')): 1904678Snate@binkert.org try: 1914678Snate@binkert.org from mercurial import ui 1924678Snate@binkert.org check_style_hook(ui.ui()) 1934678Snate@binkert.org except ImportError: 1944678Snate@binkert.org pass 1954678Snate@binkert.org 1965863Snate@binkert.org 197955SN/A################################################### 198955SN/A# 1992632Sstever@eecs.umich.edu# Figure out which configurations to set up based on the path(s) of 2002632Sstever@eecs.umich.edu# the target(s). 201955SN/A# 202955SN/A################################################### 203955SN/A 204955SN/A# Find default configuration & binary. 2055863Snate@binkert.orgDefault(environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug')) 206955SN/A 2072632Sstever@eecs.umich.edu# helper function: find last occurrence of element in list 2082632Sstever@eecs.umich.edudef rfind(l, elt, offs = -1): 2092632Sstever@eecs.umich.edu for i in range(len(l)+offs, 0, -1): 2102632Sstever@eecs.umich.edu if l[i] == elt: 2112632Sstever@eecs.umich.edu return i 2122632Sstever@eecs.umich.edu raise ValueError, "element not found" 2132632Sstever@eecs.umich.edu 2142632Sstever@eecs.umich.edu# Each target must have 'build' in the interior of the path; the 2152632Sstever@eecs.umich.edu# directory below this will determine the build parameters. For 2162632Sstever@eecs.umich.edu# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we 2172632Sstever@eecs.umich.edu# recognize that ALPHA_SE specifies the configuration because it 2182632Sstever@eecs.umich.edu# follow 'build' in the bulid path. 2192632Sstever@eecs.umich.edu 2203718Sstever@eecs.umich.edu# Generate absolute paths to targets so we can see where the build dir is 2213718Sstever@eecs.umich.eduif COMMAND_LINE_TARGETS: 2223718Sstever@eecs.umich.edu # Ask SCons which directory it was invoked from 2233718Sstever@eecs.umich.edu launch_dir = GetLaunchDir() 2243718Sstever@eecs.umich.edu # Make targets relative to invocation directory 2255863Snate@binkert.org abs_targets = [ normpath(joinpath(launch_dir, str(x))) for x in \ 2265863Snate@binkert.org COMMAND_LINE_TARGETS] 2273718Sstever@eecs.umich.eduelse: 2283718Sstever@eecs.umich.edu # Default targets are relative to root of tree 2295863Snate@binkert.org abs_targets = [ normpath(joinpath(ROOT, str(x))) for x in \ 2305863Snate@binkert.org DEFAULT_TARGETS] 2313718Sstever@eecs.umich.edu 2323718Sstever@eecs.umich.edu 2332634Sstever@eecs.umich.edu# Generate a list of the unique build roots and configs that the 2342634Sstever@eecs.umich.edu# collected targets reference. 2355863Snate@binkert.orgvariant_paths = [] 2362638Sstever@eecs.umich.edubuild_root = None 2372632Sstever@eecs.umich.edufor t in abs_targets: 2382632Sstever@eecs.umich.edu path_dirs = t.split('/') 2392632Sstever@eecs.umich.edu try: 2402632Sstever@eecs.umich.edu build_top = rfind(path_dirs, 'build', -2) 2412632Sstever@eecs.umich.edu except: 2422632Sstever@eecs.umich.edu print "Error: no non-leaf 'build' dir found on target path", t 2431858SN/A Exit(1) 2443716Sstever@eecs.umich.edu this_build_root = joinpath('/',*path_dirs[:build_top+1]) 2452638Sstever@eecs.umich.edu if not build_root: 2462638Sstever@eecs.umich.edu build_root = this_build_root 2472638Sstever@eecs.umich.edu else: 2482638Sstever@eecs.umich.edu if this_build_root != build_root: 2492638Sstever@eecs.umich.edu print "Error: build targets not under same build root\n"\ 2502638Sstever@eecs.umich.edu " %s\n %s" % (build_root, this_build_root) 2512638Sstever@eecs.umich.edu Exit(1) 2525863Snate@binkert.org variant_path = joinpath('/',*path_dirs[:build_top+2]) 2535863Snate@binkert.org if variant_path not in variant_paths: 2545863Snate@binkert.org variant_paths.append(variant_path) 255955SN/A 2565341Sstever@gmail.com# Make sure build_root exists (might not if this is the first build there) 2575341Sstever@gmail.comif not isdir(build_root): 2585863Snate@binkert.org mkdir(build_root) 2595341Sstever@gmail.com 260955SN/A################################################### 261955SN/A# 262955SN/A# Set up the default build environment. This environment is copied 263955SN/A# and modified according to each selected configuration. 264955SN/A# 265955SN/A################################################### 266955SN/A 2675863Snate@binkert.orgenv = Environment(ENV = environ, # inherit user's environment vars 2681858SN/A ROOT = ROOT, 2695863Snate@binkert.org SRCDIR = SRCDIR, 2705863Snate@binkert.org HG_INFO = hg_info) 271955SN/A 2724494Ssaidi@eecs.umich.eduExport('env') 2734494Ssaidi@eecs.umich.edu 2745863Snate@binkert.orgenv.SConsignFile(joinpath(build_root, "sconsign")) 2751105SN/A 2762667Sstever@eecs.umich.edu# Default duplicate option is to use hard links, but this messes up 2772667Sstever@eecs.umich.edu# when you use emacs to edit a file in the target dir, as emacs moves 2782667Sstever@eecs.umich.edu# file to file~ then copies to file, breaking the link. Symbolic 2792667Sstever@eecs.umich.edu# (soft) links work better. 2802667Sstever@eecs.umich.eduenv.SetOption('duplicate', 'soft-copy') 2812667Sstever@eecs.umich.edu 2825341Sstever@gmail.com# 2835863Snate@binkert.org# Set up global sticky variables... these are common to an entire build 2845341Sstever@gmail.com# tree (not specific to a particular build like ALPHA_SE) 2855341Sstever@gmail.com# 2865341Sstever@gmail.com 2875863Snate@binkert.org# Variable validators & converters for global sticky variables 2885341Sstever@gmail.comdef PathListMakeAbsolute(val): 2895341Sstever@gmail.com if not val: 2905341Sstever@gmail.com return val 2915863Snate@binkert.org f = lambda p: abspath(expanduser(p)) 2925341Sstever@gmail.com return ':'.join(map(f, val.split(':'))) 2935341Sstever@gmail.com 2945341Sstever@gmail.comdef PathListAllExist(key, val, env): 2955341Sstever@gmail.com if not val: 2965341Sstever@gmail.com return 2975341Sstever@gmail.com paths = val.split(':') 2985341Sstever@gmail.com for path in paths: 2995341Sstever@gmail.com if not isdir(path): 3005341Sstever@gmail.com raise SCons.Errors.UserError("Path does not exist: '%s'" % path) 3015341Sstever@gmail.com 3025863Snate@binkert.orgglobal_sticky_vars_file = joinpath(build_root, 'variables.global') 3035341Sstever@gmail.com 3045863Snate@binkert.orgglobal_sticky_vars = Variables(global_sticky_vars_file, args=ARGUMENTS) 3055341Sstever@gmail.com 3065863Snate@binkert.orgglobal_sticky_vars.AddVariables( 3075863Snate@binkert.org ('CC', 'C compiler', environ.get('CC', env['CC'])), 3085863Snate@binkert.org ('CXX', 'C++ compiler', environ.get('CXX', env['CXX'])), 3095397Ssaidi@eecs.umich.edu ('BATCH', 'Use batch pool for build and tests', False), 3105397Ssaidi@eecs.umich.edu ('BATCH_CMD', 'Batch pool submission command name', 'qdo'), 3115341Sstever@gmail.com ('EXTRAS', 'Add Extra directories to the compilation', '', 3125341Sstever@gmail.com PathListAllExist, PathListMakeAbsolute) 3135341Sstever@gmail.com ) 3145341Sstever@gmail.com 3155341Sstever@gmail.com# base help text 3165341Sstever@gmail.comhelp_text = ''' 3175341Sstever@gmail.comUsage: scons [scons options] [build options] [target(s)] 3185341Sstever@gmail.com 3195863Snate@binkert.orgGlobal sticky options: 3205341Sstever@gmail.com''' 3215341Sstever@gmail.com 3225863Snate@binkert.orghelp_text += global_sticky_vars.GenerateHelpText(env) 3235341Sstever@gmail.com 3245863Snate@binkert.org# Update env with values from ARGUMENTS & file global_sticky_vars_file 3255863Snate@binkert.orgglobal_sticky_vars.Update(env) 3265341Sstever@gmail.com 3275863Snate@binkert.org# Save sticky variable settings back to current variables file 3285863Snate@binkert.orgglobal_sticky_vars.Save(global_sticky_vars_file, env) 3295341Sstever@gmail.com 3305863Snate@binkert.org# Parse EXTRAS variable to build list of all directories where we're 3315341Sstever@gmail.com# look for sources etc. This list is exported as base_dir_list. 3325742Snate@binkert.orgbase_dir = joinpath(ROOT, 'src') 3335341Sstever@gmail.comif env['EXTRAS']: 3345742Snate@binkert.org extras_dir_list = env['EXTRAS'].split(':') 3355742Snate@binkert.orgelse: 3365742Snate@binkert.org extras_dir_list = [] 3375341Sstever@gmail.com 3385742Snate@binkert.orgExport('base_dir') 3395742Snate@binkert.orgExport('extras_dir_list') 3405341Sstever@gmail.com 3412632Sstever@eecs.umich.edu# M5_PLY is used by isa_parser.py to find the PLY package. 3425199Sstever@gmail.comenv.Append(ENV = { 'M5_PLY' : str(Dir('ext/ply')) }) 3435863Snate@binkert.orgenv['GCC'] = read_command(env['CXX'] + ' --version').find('g++') >= 0 3445863Snate@binkert.orgenv['SUNCC'] = read_command(env['CXX'] + ' -V').find('Sun C++') >= 0 3455863Snate@binkert.orgenv['ICC'] = read_command(env['CXX'] + ' -V').find('Intel') >= 0 3463942Ssaidi@eecs.umich.eduif env['GCC'] + env['SUNCC'] + env['ICC'] > 1: 3473940Ssaidi@eecs.umich.edu print 'Error: How can we have two at the same time?' 3483918Ssaidi@eecs.umich.edu Exit(1) 3493918Ssaidi@eecs.umich.edu 3501858SN/A# Set up default C++ compiler flags 3513918Ssaidi@eecs.umich.eduif env['GCC']: 3523918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-pipe') 3533918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-fno-strict-aliasing') 3543918Ssaidi@eecs.umich.edu env.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef')) 3555571Snate@binkert.org env.Append(CXXFLAGS='-Wno-deprecated') 3563940Ssaidi@eecs.umich.eduelif env['ICC']: 3573940Ssaidi@eecs.umich.edu pass #Fix me... add warning flags once we clean up icc warnings 3583918Ssaidi@eecs.umich.eduelif env['SUNCC']: 3593918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-Qoption ccfe') 3603918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-features=gcc') 3613918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-features=extensions') 3623918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-library=stlport4') 3633918Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-xar') 3643918Ssaidi@eecs.umich.edu# env.Append(CCFLAGS='-instances=semiexplicit') 3653918Ssaidi@eecs.umich.eduelse: 3663918Ssaidi@eecs.umich.edu print 'Error: Don\'t know what compiler options to use for your compiler.' 3673940Ssaidi@eecs.umich.edu print ' Please fix SConstruct and src/SConscript and try again.' 3683918Ssaidi@eecs.umich.edu Exit(1) 3693918Ssaidi@eecs.umich.edu 3705397Ssaidi@eecs.umich.edu# Do this after we save setting back, or else we'll tack on an 3715397Ssaidi@eecs.umich.edu# extra 'qdo' every time we run scons. 3725397Ssaidi@eecs.umich.eduif env['BATCH']: 3735708Ssaidi@eecs.umich.edu env['CC'] = env['BATCH_CMD'] + ' ' + env['CC'] 3745708Ssaidi@eecs.umich.edu env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX'] 3755708Ssaidi@eecs.umich.edu env['AS'] = env['BATCH_CMD'] + ' ' + env['AS'] 3765708Ssaidi@eecs.umich.edu env['AR'] = env['BATCH_CMD'] + ' ' + env['AR'] 3775708Ssaidi@eecs.umich.edu env['RANLIB'] = env['BATCH_CMD'] + ' ' + env['RANLIB'] 3785397Ssaidi@eecs.umich.edu 3791851SN/Aif sys.platform == 'cygwin': 3801851SN/A # cygwin has some header file issues... 3811858SN/A env.Append(CCFLAGS=Split("-Wno-uninitialized")) 3825200Sstever@gmail.comenv.Append(CPPPATH=[Dir('ext/dnet')]) 383955SN/A 3843053Sstever@eecs.umich.edu# Check for SWIG 3853053Sstever@eecs.umich.eduif not env.has_key('SWIG'): 3863053Sstever@eecs.umich.edu print 'Error: SWIG utility not found.' 3873053Sstever@eecs.umich.edu print ' Please install (see http://www.swig.org) and retry.' 3883053Sstever@eecs.umich.edu Exit(1) 3893053Sstever@eecs.umich.edu 3903053Sstever@eecs.umich.edu# Check for appropriate SWIG version 3915863Snate@binkert.orgswig_version = read_command('swig -version').split() 3923053Sstever@eecs.umich.edu# First 3 words should be "SWIG Version x.y.z" 3934742Sstever@eecs.umich.eduif len(swig_version) < 3 or \ 3944742Sstever@eecs.umich.edu swig_version[0] != 'SWIG' or swig_version[1] != 'Version': 3953053Sstever@eecs.umich.edu print 'Error determining SWIG version.' 3963053Sstever@eecs.umich.edu Exit(1) 3973053Sstever@eecs.umich.edu 3983053Sstever@eecs.umich.edumin_swig_version = '1.3.28' 3993053Sstever@eecs.umich.eduif compare_versions(swig_version[2], min_swig_version) < 0: 4003053Sstever@eecs.umich.edu print 'Error: SWIG version', min_swig_version, 'or newer required.' 4013053Sstever@eecs.umich.edu print ' Installed version:', swig_version[2] 4023053Sstever@eecs.umich.edu Exit(1) 4033053Sstever@eecs.umich.edu 4042667Sstever@eecs.umich.edu# Set up SWIG flags & scanner 4054554Sbinkertn@umich.eduswig_flags=Split('-c++ -python -modern -templatereduce $_CPPINCFLAGS') 4064554Sbinkertn@umich.eduenv.Append(SWIGFLAGS=swig_flags) 4072667Sstever@eecs.umich.edu 4084554Sbinkertn@umich.edu# filter out all existing swig scanners, they mess up the dependency 4094554Sbinkertn@umich.edu# stuff for some reason 4104554Sbinkertn@umich.eduscanners = [] 4114554Sbinkertn@umich.edufor scanner in env['SCANNERS']: 4124554Sbinkertn@umich.edu skeys = scanner.skeys 4134554Sbinkertn@umich.edu if skeys == '.i': 4144554Sbinkertn@umich.edu continue 4154781Snate@binkert.org 4164554Sbinkertn@umich.edu if isinstance(skeys, (list, tuple)) and '.i' in skeys: 4174554Sbinkertn@umich.edu continue 4182667Sstever@eecs.umich.edu 4194554Sbinkertn@umich.edu scanners.append(scanner) 4204554Sbinkertn@umich.edu 4214554Sbinkertn@umich.edu# add the new swig scanner that we like better 4224554Sbinkertn@umich.edufrom SCons.Scanner import ClassicCPP as CPPScanner 4232667Sstever@eecs.umich.eduswig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")' 4244554Sbinkertn@umich.eduscanners.append(CPPScanner("SwigScan", [ ".i" ], "CPPPATH", swig_inc_re)) 4252667Sstever@eecs.umich.edu 4264554Sbinkertn@umich.edu# replace the scanners list that has what we want 4274554Sbinkertn@umich.eduenv['SCANNERS'] = scanners 4282667Sstever@eecs.umich.edu 4295522Snate@binkert.org# Add a custom Check function to the Configure context so that we can 4305522Snate@binkert.org# figure out if the compiler adds leading underscores to global 4315522Snate@binkert.org# variables. This is needed for the autogenerated asm files that we 4325522Snate@binkert.org# use for embedding the python code. 4335522Snate@binkert.orgdef CheckLeading(context): 4345522Snate@binkert.org context.Message("Checking for leading underscore in global variables...") 4355522Snate@binkert.org # 1) Define a global variable called x from asm so the C compiler 4365522Snate@binkert.org # won't change the symbol at all. 4375522Snate@binkert.org # 2) Declare that variable. 4385522Snate@binkert.org # 3) Use the variable 4395522Snate@binkert.org # 4405522Snate@binkert.org # If the compiler prepends an underscore, this will successfully 4415522Snate@binkert.org # link because the external symbol 'x' will be called '_x' which 4425522Snate@binkert.org # was defined by the asm statement. If the compiler does not 4435522Snate@binkert.org # prepend an underscore, this will not successfully link because 4445522Snate@binkert.org # '_x' will have been defined by assembly, while the C portion of 4455522Snate@binkert.org # the code will be trying to use 'x' 4465522Snate@binkert.org ret = context.TryLink(''' 4475522Snate@binkert.org asm(".globl _x; _x: .byte 0"); 4485522Snate@binkert.org extern int x; 4495522Snate@binkert.org int main() { return x; } 4505522Snate@binkert.org ''', extension=".c") 4515522Snate@binkert.org context.env.Append(LEADING_UNDERSCORE=ret) 4525522Snate@binkert.org context.Result(ret) 4535522Snate@binkert.org return ret 4545522Snate@binkert.org 4552638Sstever@eecs.umich.edu# Platform-specific configuration. Note again that we assume that all 4562638Sstever@eecs.umich.edu# builds under a given build root run on the same host platform. 4572638Sstever@eecs.umich.educonf = Configure(env, 4583716Sstever@eecs.umich.edu conf_dir = joinpath(build_root, '.scons_config'), 4595522Snate@binkert.org log_file = joinpath(build_root, 'scons_config.log'), 4605522Snate@binkert.org custom_tests = { 'CheckLeading' : CheckLeading }) 4615522Snate@binkert.org 4625522Snate@binkert.org# Check for leading underscores. Don't really need to worry either 4635522Snate@binkert.org# way so don't need to check the return code. 4645522Snate@binkert.orgconf.CheckLeading() 4651858SN/A 4665227Ssaidi@eecs.umich.edu# Check if we should compile a 64 bit binary on Mac OS X/Darwin 4675227Ssaidi@eecs.umich.edutry: 4685227Ssaidi@eecs.umich.edu import platform 4695227Ssaidi@eecs.umich.edu uname = platform.uname() 4705227Ssaidi@eecs.umich.edu if uname[0] == 'Darwin' and compare_versions(uname[2], '9.0.0') >= 0: 4715863Snate@binkert.org if int(read_command('sysctl -n hw.cpu64bit_capable')[0]): 4725227Ssaidi@eecs.umich.edu env.Append(CCFLAGS='-arch x86_64') 4735227Ssaidi@eecs.umich.edu env.Append(CFLAGS='-arch x86_64') 4745227Ssaidi@eecs.umich.edu env.Append(LINKFLAGS='-arch x86_64') 4755227Ssaidi@eecs.umich.edu env.Append(ASFLAGS='-arch x86_64') 4765227Ssaidi@eecs.umich.eduexcept: 4775227Ssaidi@eecs.umich.edu pass 4785227Ssaidi@eecs.umich.edu 4795204Sstever@gmail.com# Recent versions of scons substitute a "Null" object for Configure() 4805204Sstever@gmail.com# when configuration isn't necessary, e.g., if the "--help" option is 4815204Sstever@gmail.com# present. Unfortuantely this Null object always returns false, 4825204Sstever@gmail.com# breaking all our configuration checks. We replace it with our own 4835204Sstever@gmail.com# more optimistic null object that returns True instead. 4845204Sstever@gmail.comif not conf: 4855204Sstever@gmail.com def NullCheck(*args, **kwargs): 4865204Sstever@gmail.com return True 4875204Sstever@gmail.com 4885204Sstever@gmail.com class NullConf: 4895204Sstever@gmail.com def __init__(self, env): 4905204Sstever@gmail.com self.env = env 4915204Sstever@gmail.com def Finish(self): 4925204Sstever@gmail.com return self.env 4935204Sstever@gmail.com def __getattr__(self, mname): 4945204Sstever@gmail.com return NullCheck 4955204Sstever@gmail.com 4965204Sstever@gmail.com conf = NullConf(env) 4975204Sstever@gmail.com 4983118Sstever@eecs.umich.edu# Find Python include and library directories for embedding the 4993118Sstever@eecs.umich.edu# interpreter. For consistency, we will use the same Python 5003118Sstever@eecs.umich.edu# installation used to run scons (and thus this script). If you want 5013118Sstever@eecs.umich.edu# to link in an alternate version, see above for instructions on how 5023118Sstever@eecs.umich.edu# to invoke scons with a different copy of the Python interpreter. 5035863Snate@binkert.orgfrom distutils import sysconfig 5043118Sstever@eecs.umich.edu 5055863Snate@binkert.orgpy_getvar = sysconfig.get_config_var 5063118Sstever@eecs.umich.edu 5075863Snate@binkert.orgpy_version = 'python' + py_getvar('VERSION') 5085863Snate@binkert.org 5095863Snate@binkert.orgpy_general_include = sysconfig.get_python_inc() 5105863Snate@binkert.orgpy_platform_include = sysconfig.get_python_inc(plat_specific=True) 5115863Snate@binkert.orgpy_includes = [ py_general_include ] 5125863Snate@binkert.orgif py_platform_include != py_general_include: 5135863Snate@binkert.org py_includes.append(py_platform_include) 5145863Snate@binkert.org 5155863Snate@binkert.orgpy_lib_path = [] 5165863Snate@binkert.org# add the prefix/lib/pythonX.Y/config dir, but only if there is no 5175863Snate@binkert.org# shared library in prefix/lib/. 5185863Snate@binkert.orgif not py_getvar('Py_ENABLE_SHARED'): 5195863Snate@binkert.org py_lib_path.append('-L' + py_getvar('LIBPL')) 5205863Snate@binkert.org 5215863Snate@binkert.orgpy_libs = [] 5225863Snate@binkert.orgfor lib in py_getvar('LIBS').split() + py_getvar('SYSLIBS').split(): 5235863Snate@binkert.org if lib not in py_libs: 5245863Snate@binkert.org py_libs.append(lib) 5255863Snate@binkert.orgpy_libs.append('-l' + py_version) 5265863Snate@binkert.org 5275863Snate@binkert.orgenv.Append(CPPPATH=py_includes) 5285863Snate@binkert.orgenv.Append(LIBPATH=py_lib_path) 5295863Snate@binkert.org#env.Append(LIBS=py_libs) 5305863Snate@binkert.org 5315863Snate@binkert.org# verify that this stuff works 5323118Sstever@eecs.umich.eduif not conf.CheckHeader('Python.h', '<>'): 5335863Snate@binkert.org print "Error: can't find Python.h header in", py_includes 5343118Sstever@eecs.umich.edu Exit(1) 5353118Sstever@eecs.umich.edu 5365863Snate@binkert.orgfor lib in py_libs: 5375863Snate@binkert.org assert lib.startswith('-l') 5385863Snate@binkert.org lib = lib[2:] 5395863Snate@binkert.org if not conf.CheckLib(lib): 5405863Snate@binkert.org print "Error: can't find library %s required by python" % lib 5415863Snate@binkert.org Exit(1) 5423118Sstever@eecs.umich.edu 5433483Ssaidi@eecs.umich.edu# On Solaris you need to use libsocket for socket ops 5443494Ssaidi@eecs.umich.eduif not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'): 5453494Ssaidi@eecs.umich.edu if not conf.CheckLibWithHeader('socket', 'sys/socket.h', 'C++', 'accept(0,0,0);'): 5463483Ssaidi@eecs.umich.edu print "Can't find library with socket calls (e.g. accept())" 5473483Ssaidi@eecs.umich.edu Exit(1) 5483483Ssaidi@eecs.umich.edu 5493053Sstever@eecs.umich.edu# Check for zlib. If the check passes, libz will be automatically 5503053Sstever@eecs.umich.edu# added to the LIBS environment variable. 5513918Ssaidi@eecs.umich.eduif not conf.CheckLibWithHeader('z', 'zlib.h', 'C++','zlibVersion();'): 5523053Sstever@eecs.umich.edu print 'Error: did not find needed zlib compression library '\ 5533053Sstever@eecs.umich.edu 'and/or zlib.h header file.' 5543053Sstever@eecs.umich.edu print ' Please install zlib and try again.' 5553053Sstever@eecs.umich.edu Exit(1) 5563053Sstever@eecs.umich.edu 5571858SN/A# Check for <fenv.h> (C99 FP environment control) 5581858SN/Ahave_fenv = conf.CheckHeader('fenv.h', '<>') 5591858SN/Aif not have_fenv: 5601858SN/A print "Warning: Header file <fenv.h> not found." 5611858SN/A print " This host has no IEEE FP rounding mode control." 5621858SN/A 5635863Snate@binkert.org###################################################################### 5645863Snate@binkert.org# 5651859SN/A# Check for mysql. 5665863Snate@binkert.org# 5671858SN/Amysql_config = WhereIs('mysql_config') 5685863Snate@binkert.orghave_mysql = bool(mysql_config) 5691858SN/A 5701859SN/A# Check MySQL version. 5711859SN/Aif have_mysql: 5725863Snate@binkert.org mysql_version = read_command(mysql_config + ' --version') 5733053Sstever@eecs.umich.edu min_mysql_version = '4.1' 5743053Sstever@eecs.umich.edu if compare_versions(mysql_version, min_mysql_version) < 0: 5753053Sstever@eecs.umich.edu print 'Warning: MySQL', min_mysql_version, 'or newer required.' 5763053Sstever@eecs.umich.edu print ' Version', mysql_version, 'detected.' 5771859SN/A have_mysql = False 5781859SN/A 5791859SN/A# Set up mysql_config commands. 5801859SN/Aif have_mysql: 5811859SN/A mysql_config_include = mysql_config + ' --include' 5821859SN/A if os.system(mysql_config_include + ' > /dev/null') != 0: 5831859SN/A # older mysql_config versions don't support --include, use 5841859SN/A # --cflags instead 5851862SN/A mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g' 5861859SN/A # This seems to work in all versions 5871859SN/A mysql_config_libs = mysql_config + ' --libs' 5881859SN/A 5895863Snate@binkert.org###################################################################### 5905863Snate@binkert.org# 5915863Snate@binkert.org# Finish the configuration 5925863Snate@binkert.org# 5931858SN/Aenv = conf.Finish() 5941858SN/A 5955863Snate@binkert.org###################################################################### 5965863Snate@binkert.org# 5975863Snate@binkert.org# Collect all non-global variables 5985863Snate@binkert.org# 5995863Snate@binkert.org 6002139SN/A# Define the universe of supported ISAs 6014202Sbinkertn@umich.eduall_isa_list = [ ] 6024202Sbinkertn@umich.eduExport('all_isa_list') 6032139SN/A 6042155SN/A# Define the universe of supported CPU models 6054202Sbinkertn@umich.eduall_cpu_list = [ ] 6064202Sbinkertn@umich.edudefault_cpus = [ ] 6074202Sbinkertn@umich.eduExport('all_cpu_list', 'default_cpus') 6082155SN/A 6095863Snate@binkert.org# Sticky variables get saved in the variables file so they persist from 6101869SN/A# one invocation to the next (unless overridden, in which case the new 6111869SN/A# value becomes sticky). 6125863Snate@binkert.orgsticky_vars = Variables(args=ARGUMENTS) 6135863Snate@binkert.orgExport('sticky_vars') 6144202Sbinkertn@umich.edu 6155863Snate@binkert.org# Non-sticky variables only apply to the current build. 6165863Snate@binkert.orgnonsticky_vars = Variables(args=ARGUMENTS) 6175863Snate@binkert.orgExport('nonsticky_vars') 6184202Sbinkertn@umich.edu 6194202Sbinkertn@umich.edu# Walk the tree and execute all SConsopts scripts that wil add to the 6205863Snate@binkert.org# above variables 6215742Snate@binkert.orgfor bdir in [ base_dir ] + extras_dir_list: 6225742Snate@binkert.org for root, dirs, files in os.walk(bdir): 6235341Sstever@gmail.com if 'SConsopts' in files: 6245342Sstever@gmail.com print "Reading", joinpath(root, 'SConsopts') 6255342Sstever@gmail.com SConscript(joinpath(root, 'SConsopts')) 6264202Sbinkertn@umich.edu 6274202Sbinkertn@umich.eduall_isa_list.sort() 6284202Sbinkertn@umich.eduall_cpu_list.sort() 6294202Sbinkertn@umich.edudefault_cpus.sort() 6304202Sbinkertn@umich.edu 6315863Snate@binkert.orgsticky_vars.AddVariables( 6325863Snate@binkert.org EnumVariable('TARGET_ISA', 'Target ISA', 'alpha', all_isa_list), 6335863Snate@binkert.org BoolVariable('FULL_SYSTEM', 'Full-system support', False), 6345863Snate@binkert.org ListVariable('CPU_MODELS', 'CPU models', default_cpus, all_cpu_list), 6355863Snate@binkert.org BoolVariable('NO_FAST_ALLOC', 'Disable fast object allocator', False), 6365863Snate@binkert.org BoolVariable('FAST_ALLOC_DEBUG', 'Enable fast object allocator debugging', 6375863Snate@binkert.org False), 6385863Snate@binkert.org BoolVariable('FAST_ALLOC_STATS', 'Enable fast object allocator statistics', 6395863Snate@binkert.org False), 6405863Snate@binkert.org BoolVariable('EFENCE', 'Link with Electric Fence malloc debugger', 6415863Snate@binkert.org False), 6425863Snate@binkert.org BoolVariable('SS_COMPATIBLE_FP', 6435863Snate@binkert.org 'Make floating-point results compatible with SimpleScalar', 6445863Snate@binkert.org False), 6455863Snate@binkert.org BoolVariable('USE_SSE2', 6465863Snate@binkert.org 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts', 6475863Snate@binkert.org False), 6485863Snate@binkert.org BoolVariable('USE_MYSQL', 'Use MySQL for stats output', have_mysql), 6495863Snate@binkert.org BoolVariable('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv), 6505863Snate@binkert.org BoolVariable('USE_CHECKER', 'Use checker for detailed CPU models', False), 6511869SN/A ) 6521858SN/A 6535863Snate@binkert.orgnonsticky_vars.AddVariables( 6545863Snate@binkert.org BoolVariable('update_ref', 'Update test reference outputs', False) 6551869SN/A ) 6561858SN/A 6575863Snate@binkert.org# These variables get exported to #defines in config/*.hh (see src/SConscript). 6585863Snate@binkert.orgenv.ExportVariables = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \ 6595863Snate@binkert.org 'USE_MYSQL', 'NO_FAST_ALLOC', 'FAST_ALLOC_DEBUG', \ 6605863Snate@binkert.org 'FAST_ALLOC_STATS', 'SS_COMPATIBLE_FP', \ 6615863Snate@binkert.org 'USE_CHECKER', 'TARGET_ISA'] 6621858SN/A 663955SN/A################################################### 664955SN/A# 6651869SN/A# Define a SCons builder for configuration flag headers. 6661869SN/A# 6671869SN/A################################################### 6681869SN/A 6691869SN/A# This function generates a config header file that #defines the 6705863Snate@binkert.org# variable symbol to the current variable setting (0 or 1). The source 6715863Snate@binkert.org# operands are the name of the variable and a Value node containing the 6725863Snate@binkert.org# value of the variable. 6731869SN/Adef build_config_file(target, source, env): 6745863Snate@binkert.org (variable, value) = [s.get_contents() for s in source] 6751869SN/A f = file(str(target[0]), 'w') 6765863Snate@binkert.org print >> f, '#define', variable, value 6771869SN/A f.close() 6781869SN/A return None 6791869SN/A 6801869SN/A# Generate the message to be printed when building the config file. 6811869SN/Adef build_config_file_string(target, source, env): 6825863Snate@binkert.org (variable, value) = [s.get_contents() for s in source] 6835863Snate@binkert.org return "Defining %s as %s in %s." % (variable, value, target[0]) 6841869SN/A 6851869SN/A# Combine the two functions into a scons Action object. 6861869SN/Aconfig_action = Action(build_config_file, build_config_file_string) 6871869SN/A 6881869SN/A# The emitter munges the source & target node lists to reflect what 6891869SN/A# we're really doing. 6901869SN/Adef config_emitter(target, source, env): 6915863Snate@binkert.org # extract variable name from Builder arg 6925863Snate@binkert.org variable = str(target[0]) 6931869SN/A # True target is config header file 6945863Snate@binkert.org target = joinpath('config', variable.lower() + '.hh') 6955863Snate@binkert.org val = env[variable] 6963356Sbinkertn@umich.edu if isinstance(val, bool): 6973356Sbinkertn@umich.edu # Force value to 0/1 6983356Sbinkertn@umich.edu val = int(val) 6993356Sbinkertn@umich.edu elif isinstance(val, str): 7003356Sbinkertn@umich.edu val = '"' + val + '"' 7014781Snate@binkert.org 7025863Snate@binkert.org # Sources are variable name & value (packaged in SCons Value nodes) 7035863Snate@binkert.org return ([target], [Value(variable), Value(val)]) 7041869SN/A 7051869SN/Aconfig_builder = Builder(emitter = config_emitter, action = config_action) 7061869SN/A 7071869SN/Aenv.Append(BUILDERS = { 'ConfigFile' : config_builder }) 7081869SN/A 7092638Sstever@eecs.umich.edu# libelf build is shared across all configs in the build root. 7102638Sstever@eecs.umich.eduenv.SConscript('ext/libelf/SConscript', 7115863Snate@binkert.org variant_dir = joinpath(build_root, 'libelf'), 7122638Sstever@eecs.umich.edu exports = 'env') 7132638Sstever@eecs.umich.edu 7145749Scws3k@cs.virginia.edu# gzstream build is shared across all configs in the build root. 7155749Scws3k@cs.virginia.eduenv.SConscript('ext/gzstream/SConscript', 7165863Snate@binkert.org variant_dir = joinpath(build_root, 'gzstream'), 7175749Scws3k@cs.virginia.edu exports = 'env') 7185749Scws3k@cs.virginia.edu 7191869SN/A################################################### 7201869SN/A# 7213546Sgblack@eecs.umich.edu# This function is used to set up a directory with switching headers 7223546Sgblack@eecs.umich.edu# 7233546Sgblack@eecs.umich.edu################################################### 7243546Sgblack@eecs.umich.edu 7254202Sbinkertn@umich.eduenv['ALL_ISA_LIST'] = all_isa_list 7265863Snate@binkert.orgdef make_switching_dir(dname, switch_headers, env): 7273546Sgblack@eecs.umich.edu # Generate the header. target[0] is the full path of the output 7283546Sgblack@eecs.umich.edu # header to generate. 'source' is a dummy variable, since we get the 7293546Sgblack@eecs.umich.edu # list of ISAs from env['ALL_ISA_LIST']. 7303546Sgblack@eecs.umich.edu def gen_switch_hdr(target, source, env): 7314781Snate@binkert.org fname = str(target[0]) 7325863Snate@binkert.org bname = basename(fname) 7334781Snate@binkert.org f = open(fname, 'w') 7344781Snate@binkert.org f.write('#include "arch/isa_specific.hh"\n') 7354781Snate@binkert.org cond = '#if' 7364781Snate@binkert.org for isa in all_isa_list: 7374781Snate@binkert.org f.write('%s THE_ISA == %s_ISA\n#include "%s/%s/%s"\n' 7385863Snate@binkert.org % (cond, isa.upper(), dname, isa, bname)) 7394781Snate@binkert.org cond = '#elif' 7404781Snate@binkert.org f.write('#else\n#error "THE_ISA not set"\n#endif\n') 7414781Snate@binkert.org f.close() 7424781Snate@binkert.org return 0 7433546Sgblack@eecs.umich.edu 7443546Sgblack@eecs.umich.edu # String to print when generating header 7453546Sgblack@eecs.umich.edu def gen_switch_hdr_string(target, source, env): 7464781Snate@binkert.org return "Generating switch header " + str(target[0]) 7473546Sgblack@eecs.umich.edu 7483546Sgblack@eecs.umich.edu # Build SCons Action object. 'varlist' specifies env vars that this 7493546Sgblack@eecs.umich.edu # action depends on; when env['ALL_ISA_LIST'] changes these actions 7503546Sgblack@eecs.umich.edu # should get re-executed. 7513546Sgblack@eecs.umich.edu switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string, 7523546Sgblack@eecs.umich.edu varlist=['ALL_ISA_LIST']) 7533546Sgblack@eecs.umich.edu 7543546Sgblack@eecs.umich.edu # Instantiate actions for each header 7553546Sgblack@eecs.umich.edu for hdr in switch_headers: 7563546Sgblack@eecs.umich.edu env.Command(hdr, [], switch_hdr_action) 7574202Sbinkertn@umich.eduExport('make_switching_dir') 7583546Sgblack@eecs.umich.edu 7593546Sgblack@eecs.umich.edu################################################### 7603546Sgblack@eecs.umich.edu# 761955SN/A# Define build environments for selected configurations. 762955SN/A# 763955SN/A################################################### 764955SN/A 7651858SN/A# rename base env 7661858SN/Abase_env = env 7671858SN/A 7685863Snate@binkert.orgfor variant_path in variant_paths: 7695863Snate@binkert.org print "Building in", variant_path 7705343Sstever@gmail.com 7715343Sstever@gmail.com # Make a copy of the build-root environment to use for this config. 7725863Snate@binkert.org env = base_env.Clone() 7735863Snate@binkert.org env['BUILDDIR'] = variant_path 7744773Snate@binkert.org 7755863Snate@binkert.org # variant_dir is the tail component of build path, and is used to 7762632Sstever@eecs.umich.edu # determine the build parameters (e.g., 'ALPHA_SE') 7775863Snate@binkert.org (build_root, variant_dir) = splitpath(variant_path) 7782023SN/A 7795863Snate@binkert.org # Set env variables according to the build directory config. 7805863Snate@binkert.org sticky_vars.files = [] 7815863Snate@binkert.org # Variables for $BUILD_ROOT/$VARIANT_DIR are stored in 7825863Snate@binkert.org # $BUILD_ROOT/variables/$VARIANT_DIR so you can nuke 7835863Snate@binkert.org # $BUILD_ROOT/$VARIANT_DIR without losing your variables settings. 7845863Snate@binkert.org current_vars_file = joinpath(build_root, 'variables', variant_dir) 7855863Snate@binkert.org if isfile(current_vars_file): 7865863Snate@binkert.org sticky_vars.files.append(current_vars_file) 7875863Snate@binkert.org print "Using saved variables file %s" % current_vars_file 7882632Sstever@eecs.umich.edu else: 7895863Snate@binkert.org # Build dir-specific variables file doesn't exist. 7902023SN/A 7912632Sstever@eecs.umich.edu # Make sure the directory is there so we can create it later 7925863Snate@binkert.org opt_dir = dirname(current_vars_file) 7935342Sstever@gmail.com if not isdir(opt_dir): 7945863Snate@binkert.org mkdir(opt_dir) 7952632Sstever@eecs.umich.edu 7965863Snate@binkert.org # Get default build variables from source tree. Variables are 7975863Snate@binkert.org # normally determined by name of $VARIANT_DIR, but can be 7982632Sstever@eecs.umich.edu # overriden by 'default=' arg on command line. 7995863Snate@binkert.org default_vars_file = joinpath('build_opts', 8005863Snate@binkert.org ARGUMENTS.get('default', variant_dir)) 8015863Snate@binkert.org if isfile(default_vars_file): 8025863Snate@binkert.org sticky_vars.files.append(default_vars_file) 8035863Snate@binkert.org print "Variables file %s not found,\n using defaults in %s" \ 8045863Snate@binkert.org % (current_vars_file, default_vars_file) 8052632Sstever@eecs.umich.edu else: 8065863Snate@binkert.org print "Error: cannot find variables file %s or %s" \ 8075863Snate@binkert.org % (current_vars_file, default_vars_file) 8082632Sstever@eecs.umich.edu Exit(1) 8091888SN/A 8105863Snate@binkert.org # Apply current variable settings to env 8115863Snate@binkert.org sticky_vars.Update(env) 8125863Snate@binkert.org nonsticky_vars.Update(env) 8131858SN/A 8145863Snate@binkert.org help_text += "\nSticky variables for %s:\n" % variant_dir \ 8155863Snate@binkert.org + sticky_vars.GenerateHelpText(env) \ 8165863Snate@binkert.org + "\nNon-sticky variables for %s:\n" % variant_dir \ 8175863Snate@binkert.org + nonsticky_vars.GenerateHelpText(env) 8182598SN/A 8195863Snate@binkert.org # Process variable settings. 8201858SN/A 8211858SN/A if not have_fenv and env['USE_FENV']: 8221858SN/A print "Warning: <fenv.h> not available; " \ 8235863Snate@binkert.org "forcing USE_FENV to False in", variant_dir + "." 8241858SN/A env['USE_FENV'] = False 8251858SN/A 8261858SN/A if not env['USE_FENV']: 8275863Snate@binkert.org print "Warning: No IEEE FP rounding mode control in", variant_dir + "." 8281871SN/A print " FP results may deviate slightly from other platforms." 8291858SN/A 8301858SN/A if env['EFENCE']: 8311858SN/A env.Append(LIBS=['efence']) 8321858SN/A 8331858SN/A if env['USE_MYSQL']: 8341858SN/A if not have_mysql: 8351858SN/A print "Warning: MySQL not available; " \ 8365863Snate@binkert.org "forcing USE_MYSQL to False in", variant_dir + "." 8371858SN/A env['USE_MYSQL'] = False 8381858SN/A else: 8395863Snate@binkert.org print "Compiling in", variant_dir, "with MySQL support." 8401859SN/A env.ParseConfig(mysql_config_libs) 8411859SN/A env.ParseConfig(mysql_config_include) 8421869SN/A 8435863Snate@binkert.org # Save sticky variable settings back to current variables file 8445863Snate@binkert.org sticky_vars.Save(current_vars_file, env) 8451869SN/A 8461965SN/A if env['USE_SSE2']: 8471965SN/A env.Append(CCFLAGS='-msse2') 8481965SN/A 8492761Sstever@eecs.umich.edu # The src/SConscript file sets up the build rules in 'env' according 8505863Snate@binkert.org # to the configured variables. It returns a list of environments, 8511869SN/A # one for each variant build (debug, opt, etc.) 8525863Snate@binkert.org envList = SConscript('src/SConscript', variant_dir = variant_path, 8532667Sstever@eecs.umich.edu exports = 'env') 8541869SN/A 8551869SN/A # Set up the regression tests for each build. 8562929Sktlim@umich.edu for e in envList: 8572929Sktlim@umich.edu SConscript('tests/SConscript', 8585863Snate@binkert.org variant_dir = joinpath(variant_path, 'tests', e.Label), 8592929Sktlim@umich.edu exports = { 'env' : e }, duplicate = False) 860955SN/A 8612598SN/AHelp(help_text) 8622598SN/A 8633546Sgblack@eecs.umich.edu 864955SN/A################################################### 865955SN/A# 866955SN/A# Let SCons do its thing. At this point SCons will use the defined 8671530SN/A# build environments to build the requested targets. 868955SN/A# 869955SN/A################################################### 870955SN/A 871