SConstruct revision 2635
17586SAli.Saidi@arm.com# -*- mode:python -*- 27586SAli.Saidi@arm.com 37586SAli.Saidi@arm.com# Copyright (c) 2004-2005 The Regents of The University of Michigan 47586SAli.Saidi@arm.com# All rights reserved. 57586SAli.Saidi@arm.com# 67586SAli.Saidi@arm.com# Redistribution and use in source and binary forms, with or without 77586SAli.Saidi@arm.com# modification, are permitted provided that the following conditions are 87586SAli.Saidi@arm.com# met: redistributions of source code must retain the above copyright 97586SAli.Saidi@arm.com# notice, this list of conditions and the following disclaimer; 107586SAli.Saidi@arm.com# redistributions in binary form must reproduce the above copyright 117586SAli.Saidi@arm.com# notice, this list of conditions and the following disclaimer in the 127586SAli.Saidi@arm.com# documentation and/or other materials provided with the distribution; 137905SBrad.Beckmann@amd.com# neither the name of the copyright holders nor the names of its 145323Sgblack@eecs.umich.edu# contributors may be used to endorse or promote products derived from 152934Sktlim@umich.edu# this software without specific prior written permission. 162934Sktlim@umich.edu# 172934Sktlim@umich.edu# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 182934Sktlim@umich.edu# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 192934Sktlim@umich.edu# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 202934Sktlim@umich.edu# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 212934Sktlim@umich.edu# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 222934Sktlim@umich.edu# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 232934Sktlim@umich.edu# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 242934Sktlim@umich.edu# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 252934Sktlim@umich.edu# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 262934Sktlim@umich.edu# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 272934Sktlim@umich.edu# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 282934Sktlim@umich.edu 292934Sktlim@umich.edu################################################### 302934Sktlim@umich.edu# 312934Sktlim@umich.edu# SCons top-level build description (SConstruct) file. 322934Sktlim@umich.edu# 332934Sktlim@umich.edu# While in this directory ('m5'), just type 'scons' to build the default 342934Sktlim@umich.edu# configuration (see below), or type 'scons build/<CONFIG>/<binary>' 352934Sktlim@umich.edu# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for 362934Sktlim@umich.edu# the optimized full-system version). 372934Sktlim@umich.edu# 382934Sktlim@umich.edu# You can build M5 in a different directory as long as there is a 392934Sktlim@umich.edu# 'build/<CONFIG>' somewhere along the target path. The build system 402934Sktlim@umich.edu# expdects that all configs under the same build directory are being 412934Sktlim@umich.edu# built for the same host system. 422934Sktlim@umich.edu# 432995Ssaidi@eecs.umich.edu# Examples: 442934Sktlim@umich.edu# These two commands are equivalent. The '-u' option tells scons to 452934Sktlim@umich.edu# search up the directory tree for this SConstruct file. 462934Sktlim@umich.edu# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug 472934Sktlim@umich.edu# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug 482934Sktlim@umich.edu# These two commands are equivalent and demonstrate building in a 492934Sktlim@umich.edu# directory outside of the source tree. The '-C' option tells scons 502934Sktlim@umich.edu# to chdir to the specified directory to find this SConstruct file. 512934Sktlim@umich.edu# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug 526122SSteve.Reinhardt@amd.com# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug 536122SSteve.Reinhardt@amd.com# 546122SSteve.Reinhardt@amd.com# You can use 'scons -H' to print scons options. If you're in this 556122SSteve.Reinhardt@amd.com# 'm5' directory (or use -u or -C to tell scons where to find this 566122SSteve.Reinhardt@amd.com# file), you can use 'scons -h' to print all the M5-specific build 574520Ssaidi@eecs.umich.edu# options as well. 584520Ssaidi@eecs.umich.edu# 594982Ssaidi@eecs.umich.edu################################################### 604520Ssaidi@eecs.umich.edu 614520Ssaidi@eecs.umich.edu# Python library imports 622934Sktlim@umich.eduimport sys 632934Sktlim@umich.eduimport os 643005Sstever@eecs.umich.edu 653005Sstever@eecs.umich.edu# Check for recent-enough Python and SCons versions 663304Sstever@eecs.umich.eduEnsurePythonVersion(2,3) 672995Ssaidi@eecs.umich.eduEnsureSConsVersion(0,96,91) 682934Sktlim@umich.edu 696122SSteve.Reinhardt@amd.com# The absolute path to the current directory (where this file lives). 704965Ssaidi@eecs.umich.eduROOT = Dir('.').abspath 715266Sksewell@umich.edu 722934Sktlim@umich.edu# Paths to the M5 and external source trees. 732934Sktlim@umich.eduSRCDIR = os.path.join(ROOT, 'src') 742934Sktlim@umich.edu 752934Sktlim@umich.edu# tell python where to find m5 python code 762934Sktlim@umich.edusys.path.append(os.path.join(ROOT, 'src/python')) 772995Ssaidi@eecs.umich.edu 782934Sktlim@umich.edu################################################### 792934Sktlim@umich.edu# 802934Sktlim@umich.edu# Figure out which configurations to set up based on the path(s) of 812934Sktlim@umich.edu# the target(s). 822934Sktlim@umich.edu# 832995Ssaidi@eecs.umich.edu################################################### 842934Sktlim@umich.edu 852934Sktlim@umich.edu# Find default configuration & binary. 862953Sktlim@umich.eduDefault(os.environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug')) 875478Snate@binkert.org 882934Sktlim@umich.edu# Ask SCons which directory it was invoked from. 893449Shsul@eecs.umich.edulaunch_dir = GetLaunchDir() 902934Sktlim@umich.edu 912934Sktlim@umich.edu# Make targets relative to invocation directory 922934Sktlim@umich.eduabs_targets = map(lambda x: os.path.normpath(os.path.join(launch_dir, str(x))), 932934Sktlim@umich.edu BUILD_TARGETS) 942934Sktlim@umich.edu 957014SBrad.Beckmann@amd.com# helper function: find last occurrence of element in list 966765SBrad.Beckmann@amd.comdef rfind(l, elt, offs = -1): 976765SBrad.Beckmann@amd.com for i in range(len(l)+offs, 0, -1): 986765SBrad.Beckmann@amd.com if l[i] == elt: 996765SBrad.Beckmann@amd.com return i 1006765SBrad.Beckmann@amd.com raise ValueError, "element not found" 1017014SBrad.Beckmann@amd.com 1027014SBrad.Beckmann@amd.com# Each target must have 'build' in the interior of the path; the 1036765SBrad.Beckmann@amd.com# directory below this will determine the build parameters. For 1046765SBrad.Beckmann@amd.com# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we 1056765SBrad.Beckmann@amd.com# recognize that ALPHA_SE specifies the configuration because it 1066765SBrad.Beckmann@amd.com# follow 'build' in the bulid path. 1076765SBrad.Beckmann@amd.com 1086765SBrad.Beckmann@amd.com# Generate a list of the unique build roots and configs that the 1096765SBrad.Beckmann@amd.com# collected targets reference. 1106893SBrad.Beckmann@amd.combuild_paths = [] 1116893SBrad.Beckmann@amd.combuild_roots = [] 1126893SBrad.Beckmann@amd.comfor t in abs_targets: 1136893SBrad.Beckmann@amd.com path_dirs = t.split('/') 1146893SBrad.Beckmann@amd.com try: 1156893SBrad.Beckmann@amd.com build_top = rfind(path_dirs, 'build', -2) 1167014SBrad.Beckmann@amd.com except: 1176893SBrad.Beckmann@amd.com print "Error: no non-leaf 'build' dir found on target path", t 1186765SBrad.Beckmann@amd.com Exit(1) 1196765SBrad.Beckmann@amd.com build_root = os.path.join('/',*path_dirs[:build_top+1]) 1206765SBrad.Beckmann@amd.com if build_root not in build_roots: 1216765SBrad.Beckmann@amd.com build_roots.append(build_root) 1226765SBrad.Beckmann@amd.com build_path = os.path.join('/',*path_dirs[:build_top+2]) 1236765SBrad.Beckmann@amd.com if build_path not in build_paths: 1246765SBrad.Beckmann@amd.com build_paths.append(build_path) 1256765SBrad.Beckmann@amd.com 1266765SBrad.Beckmann@amd.com################################################### 1276893SBrad.Beckmann@amd.com# 1287633SBrad.Beckmann@amd.com# Set up the default build environment. This environment is copied 1297633SBrad.Beckmann@amd.com# and modified according to each selected configuration. 1306893SBrad.Beckmann@amd.com# 1317633SBrad.Beckmann@amd.com################################################### 1326765SBrad.Beckmann@amd.com 1336765SBrad.Beckmann@amd.comenv = Environment(ENV = os.environ, # inherit user's environment vars 1346765SBrad.Beckmann@amd.com ROOT = ROOT, 1356765SBrad.Beckmann@amd.com SRCDIR = SRCDIR) 1366765SBrad.Beckmann@amd.com 1376765SBrad.Beckmann@amd.comenv.SConsignFile("sconsign") 1386765SBrad.Beckmann@amd.com 1396765SBrad.Beckmann@amd.com# I waffle on this setting... it does avoid a few painful but 1406765SBrad.Beckmann@amd.com# unnecessary builds, but it also seems to make trivial builds take 1416765SBrad.Beckmann@amd.com# noticeably longer. 1426765SBrad.Beckmann@amd.comif False: 1436765SBrad.Beckmann@amd.com env.TargetSignatures('content') 1446765SBrad.Beckmann@amd.com 1453584Ssaidi@eecs.umich.edu# M5_PLY is used by isa_parser.py to find the PLY package. 1464486Sbinkertn@umich.eduenv.Append(ENV = { 'M5_PLY' : Dir('ext/ply') }) 1474486Sbinkertn@umich.edu 1484486Sbinkertn@umich.edu# Set up default C++ compiler flags 1494486Sbinkertn@umich.eduenv.Append(CCFLAGS='-pipe') 1504486Sbinkertn@umich.eduenv.Append(CCFLAGS='-fno-strict-aliasing') 1514486Sbinkertn@umich.eduenv.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef')) 1524486Sbinkertn@umich.eduif sys.platform == 'cygwin': 1533584Ssaidi@eecs.umich.edu # cygwin has some header file issues... 1543584Ssaidi@eecs.umich.edu env.Append(CCFLAGS=Split("-Wno-uninitialized")) 1553584Ssaidi@eecs.umich.eduenv.Append(CPPPATH=[Dir('ext/dnet')]) 1563584Ssaidi@eecs.umich.edu 1573584Ssaidi@eecs.umich.edu# Default libraries 1583743Sgblack@eecs.umich.eduenv.Append(LIBS=['z']) 1596122SSteve.Reinhardt@amd.com 1604972Ssaidi@eecs.umich.edu# Platform-specific configuration 1613743Sgblack@eecs.umich.educonf = Configure(env) 1624104Ssaidi@eecs.umich.edu 1633743Sgblack@eecs.umich.edu# Check for <fenv.h> (C99 FP environment control) 1643823Ssaidi@eecs.umich.eduhave_fenv = conf.CheckHeader('fenv.h', '<>') 1653814Ssaidi@eecs.umich.eduif not have_fenv: 1663743Sgblack@eecs.umich.edu print "Warning: Header file <fenv.h> not found." 1673743Sgblack@eecs.umich.edu print " This host has no IEEE FP rounding mode control." 1683584Ssaidi@eecs.umich.edu 1693814Ssaidi@eecs.umich.edu# Check for mysql. 1703584Ssaidi@eecs.umich.edumysql_config = WhereIs('mysql_config') 1713745Sgblack@eecs.umich.eduhave_mysql = mysql_config != None 1723745Sgblack@eecs.umich.edu 1733745Sgblack@eecs.umich.edu# Check MySQL version. 1743584Ssaidi@eecs.umich.eduif have_mysql: 1753898Ssaidi@eecs.umich.edu mysql_version = os.popen(mysql_config + ' --version').read() 1763898Ssaidi@eecs.umich.edu mysql_version = mysql_version.split('.') 1773898Ssaidi@eecs.umich.edu mysql_major = int(mysql_version[0]) 1784103Ssaidi@eecs.umich.edu mysql_minor = int(mysql_version[1]) 1794103Ssaidi@eecs.umich.edu # This version check is probably overly conservative, but it deals 1804103Ssaidi@eecs.umich.edu # with the versions we have installed. 1813745Sgblack@eecs.umich.edu if mysql_major < 4 or (mysql_major == 4 and mysql_minor < 1): 1823745Sgblack@eecs.umich.edu print "Warning: MySQL v4.1 or newer required." 1833745Sgblack@eecs.umich.edu have_mysql = False 1843584Ssaidi@eecs.umich.edu 1853584Ssaidi@eecs.umich.edu# Set up mysql_config commands. 1863584Ssaidi@eecs.umich.eduif have_mysql: 1877586SAli.Saidi@arm.com mysql_config_include = mysql_config + ' --include' 1887586SAli.Saidi@arm.com if os.system(mysql_config_include + ' > /dev/null') != 0: 1897586SAli.Saidi@arm.com # older mysql_config versions don't support --include, use 1907586SAli.Saidi@arm.com # --cflags instead 1917586SAli.Saidi@arm.com mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g' 1927586SAli.Saidi@arm.com # This seems to work in all versions 1937586SAli.Saidi@arm.com mysql_config_libs = mysql_config + ' --libs' 1947586SAli.Saidi@arm.com 1957586SAli.Saidi@arm.comenv = conf.Finish() 1967586SAli.Saidi@arm.com 1977586SAli.Saidi@arm.com# Define the universe of supported ISAs 1987586SAli.Saidi@arm.comenv['ALL_ISA_LIST'] = ['alpha', 'sparc', 'mips'] 1997586SAli.Saidi@arm.com 2007586SAli.Saidi@arm.com# Define the universe of supported CPU models 2017586SAli.Saidi@arm.comenv['ALL_CPU_LIST'] = ['AtomicSimpleCPU', 'TimingSimpleCPU', 2027586SAli.Saidi@arm.com 'FastCPU', 'FullCPU', 'AlphaFullCPU'] 2037586SAli.Saidi@arm.com 2047730SAli.Saidi@ARM.com# Sticky options get saved in the options file so they persist from 2057730SAli.Saidi@ARM.com# one invocation to the next (unless overridden, in which case the new 2067586SAli.Saidi@arm.com# value becomes sticky). 2077586SAli.Saidi@arm.comsticky_opts = Options(args=ARGUMENTS) 2087586SAli.Saidi@arm.comsticky_opts.AddOptions( 2097730SAli.Saidi@ARM.com EnumOption('TARGET_ISA', 'Target ISA', 'alpha', env['ALL_ISA_LIST']), 2107586SAli.Saidi@arm.com BoolOption('FULL_SYSTEM', 'Full-system support', False), 2117586SAli.Saidi@arm.com # There's a bug in scons 0.96.1 that causes ListOptions with list 2127586SAli.Saidi@arm.com # values (more than one value) not to be able to be restored from 2137750SAli.Saidi@ARM.com # a saved option file. If this causes trouble then upgrade to 2147750SAli.Saidi@ARM.com # scons 0.96.90 or later. 2157750SAli.Saidi@ARM.com ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU', 2167750SAli.Saidi@ARM.com env['ALL_CPU_LIST']), 2177750SAli.Saidi@ARM.com BoolOption('ALPHA_TLASER', 2187750SAli.Saidi@ARM.com 'Model Alpha TurboLaser platform (vs. Tsunami)', False), 2197750SAli.Saidi@ARM.com BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False), 2207750SAli.Saidi@ARM.com BoolOption('EFENCE', 'Link with Electric Fence malloc debugger', 2217750SAli.Saidi@ARM.com False), 2227750SAli.Saidi@ARM.com BoolOption('SS_COMPATIBLE_FP', 2237586SAli.Saidi@arm.com 'Make floating-point results compatible with SimpleScalar', 2247586SAli.Saidi@arm.com False), 2257586SAli.Saidi@arm.com BoolOption('USE_SSE2', 2267586SAli.Saidi@arm.com 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts', 2277586SAli.Saidi@arm.com False), 2287586SAli.Saidi@arm.com BoolOption('STATS_BINNING', 'Bin statistics by CPU mode', have_mysql), 2297586SAli.Saidi@arm.com BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql), 2307586SAli.Saidi@arm.com BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv), 2317586SAli.Saidi@arm.com ('CC', 'C compiler', os.environ.get('CC', env['CC'])), 2327586SAli.Saidi@arm.com ('CXX', 'C++ compiler', os.environ.get('CXX', env['CXX'])), 2337586SAli.Saidi@arm.com BoolOption('BATCH', 'Use batch pool for build and tests', False), 2347586SAli.Saidi@arm.com ('BATCH_CMD', 'Batch pool submission command name', 'qdo') 2357586SAli.Saidi@arm.com ) 2367586SAli.Saidi@arm.com 2377586SAli.Saidi@arm.com# Non-sticky options only apply to the current build. 2387586SAli.Saidi@arm.comnonsticky_opts = Options(args=ARGUMENTS) 2397586SAli.Saidi@arm.comnonsticky_opts.AddOptions( 2407586SAli.Saidi@arm.com BoolOption('update_ref', 'Update test reference outputs', False) 2417730SAli.Saidi@ARM.com ) 2427730SAli.Saidi@ARM.com 2437730SAli.Saidi@ARM.com# These options get exported to #defines in config/*.hh (see m5/SConscript). 2447730SAli.Saidi@ARM.comenv.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \ 2457586SAli.Saidi@arm.com 'USE_MYSQL', 'NO_FAST_ALLOC', 'SS_COMPATIBLE_FP', \ 2467586SAli.Saidi@arm.com 'STATS_BINNING'] 2477586SAli.Saidi@arm.com 2487586SAli.Saidi@arm.com# Define a handy 'no-op' action 2495222Sksewell@umich.edudef no_action(target, source, env): 2505222Sksewell@umich.edu return 0 2515222Sksewell@umich.edu 2525222Sksewell@umich.eduenv.NoAction = Action(no_action, None) 2535222Sksewell@umich.edu 2545222Sksewell@umich.edu################################################### 2555222Sksewell@umich.edu# 2565222Sksewell@umich.edu# Define a SCons builder for configuration flag headers. 2575222Sksewell@umich.edu# 2585222Sksewell@umich.edu################################################### 2595222Sksewell@umich.edu 2605222Sksewell@umich.edu# This function generates a config header file that #defines the 2616122SSteve.Reinhardt@amd.com# option symbol to the current option setting (0 or 1). The source 2625222Sksewell@umich.edu# operands are the name of the option and a Value node containing the 2635222Sksewell@umich.edu# value of the option. 2645222Sksewell@umich.edudef build_config_file(target, source, env): 2655222Sksewell@umich.edu (option, value) = [s.get_contents() for s in source] 2665222Sksewell@umich.edu f = file(str(target[0]), 'w') 2675222Sksewell@umich.edu print >> f, '#define', option, value 2685222Sksewell@umich.edu f.close() 2695222Sksewell@umich.edu return None 2705222Sksewell@umich.edu 2715222Sksewell@umich.edu# Generate the message to be printed when building the config file. 2725222Sksewell@umich.edudef build_config_file_string(target, source, env): 2735222Sksewell@umich.edu (option, value) = [s.get_contents() for s in source] 2745222Sksewell@umich.edu return "Defining %s as %s in %s." % (option, value, target[0]) 2755222Sksewell@umich.edu 2765222Sksewell@umich.edu# Combine the two functions into a scons Action object. 2775222Sksewell@umich.educonfig_action = Action(build_config_file, build_config_file_string) 2785222Sksewell@umich.edu 2795478Snate@binkert.org# The emitter munges the source & target node lists to reflect what 2805222Sksewell@umich.edu# we're really doing. 2815222Sksewell@umich.edudef config_emitter(target, source, env): 2825222Sksewell@umich.edu # extract option name from Builder arg 2835222Sksewell@umich.edu option = str(target[0]) 2845222Sksewell@umich.edu # True target is config header file 2855222Sksewell@umich.edu target = os.path.join('config', option.lower() + '.hh') 2865323Sgblack@eecs.umich.edu # Force value to 0/1 even if it's a Python bool 2875357Sgblack@eecs.umich.edu val = int(eval(str(env[option]))) 2885323Sgblack@eecs.umich.edu # Sources are option name & value (packaged in SCons Value nodes) 2895323Sgblack@eecs.umich.edu return ([target], [Value(option), Value(val)]) 2907905SBrad.Beckmann@amd.com 2917905SBrad.Beckmann@amd.comconfig_builder = Builder(emitter = config_emitter, action = config_action) 2927905SBrad.Beckmann@amd.com 2937905SBrad.Beckmann@amd.comenv.Append(BUILDERS = { 'ConfigFile' : config_builder }) 2947905SBrad.Beckmann@amd.com 2957905SBrad.Beckmann@amd.com# base help text 2967905SBrad.Beckmann@amd.comhelp_text = ''' 2977905SBrad.Beckmann@amd.comUsage: scons [scons options] [build options] [target(s)] 2987905SBrad.Beckmann@amd.com 2997905SBrad.Beckmann@amd.com''' 3007905SBrad.Beckmann@amd.com 3017905SBrad.Beckmann@amd.com################################################### 3027905SBrad.Beckmann@amd.com# 3037905SBrad.Beckmann@amd.com# Define build environments for selected configurations. 3047905SBrad.Beckmann@amd.com# 3057905SBrad.Beckmann@amd.com################################################### 3067905SBrad.Beckmann@amd.com 3077905SBrad.Beckmann@amd.com# rename base env 3087905SBrad.Beckmann@amd.combase_env = env 3097905SBrad.Beckmann@amd.com 3107905SBrad.Beckmann@amd.com# Spme things (just libelf currently) are shared across all configs in 3117905SBrad.Beckmann@amd.com# a "build root". Need to define how to build these just once for 3127905SBrad.Beckmann@amd.com# each referenced root. 3137905SBrad.Beckmann@amd.combuild_root_env = {} 3147905SBrad.Beckmann@amd.comfor build_root in build_roots: 3157905SBrad.Beckmann@amd.com env = base_env.Copy() 3167905SBrad.Beckmann@amd.com env.SConscript('ext/libelf/SConscript', 3177905SBrad.Beckmann@amd.com build_dir = os.path.join(build_root, 'libelf'), 3185613Sgblack@eecs.umich.edu exports = 'env') 3195613Sgblack@eecs.umich.edu build_root_env[build_root] = env 3205613Sgblack@eecs.umich.edu 3215133Sgblack@eecs.umich.edufor build_path in build_paths: 3225133Sgblack@eecs.umich.edu print "Building in", build_path 3235133Sgblack@eecs.umich.edu # build_dir is the tail component of build path, and is used to 3245133Sgblack@eecs.umich.edu # determine the build parameters (e.g., 'ALPHA_SE') 3255133Sgblack@eecs.umich.edu (build_root, build_dir) = os.path.split(build_path) 3266802Sgblack@eecs.umich.edu # Make a copy of the build-root environment to use for this config. 3276802Sgblack@eecs.umich.edu env = build_root_env[build_root].Copy() 3285133Sgblack@eecs.umich.edu 3295450Sgblack@eecs.umich.edu # Set env options according to the build directory config. 3305613Sgblack@eecs.umich.edu sticky_opts.files = [] 3315613Sgblack@eecs.umich.edu # Options for $BUILD_ROOT/$BUILD_DIR are stored in 3325638Sgblack@eecs.umich.edu # $BUILD_ROOT/options/$BUILD_DIR so you can nuke 3337905SBrad.Beckmann@amd.com # $BUILD_ROOT/$BUILD_DIR without losing your options settings. 3347905SBrad.Beckmann@amd.com current_opts_file = os.path.join(build_root, 'options', build_dir) 3357905SBrad.Beckmann@amd.com if os.path.isfile(current_opts_file): 3367905SBrad.Beckmann@amd.com sticky_opts.files.append(current_opts_file) 3377937SBrad.Beckmann@amd.com print "Using saved options file %s" % current_opts_file 3387937SBrad.Beckmann@amd.com else: 3397937SBrad.Beckmann@amd.com # Build dir-specific options file doesn't exist. 3407905SBrad.Beckmann@amd.com 3417905SBrad.Beckmann@amd.com # Make sure the directory is there so we can create it later 3425613Sgblack@eecs.umich.edu opt_dir = os.path.dirname(current_opts_file) 3435613Sgblack@eecs.umich.edu if not os.path.isdir(opt_dir): 3445613Sgblack@eecs.umich.edu os.mkdir(opt_dir) 3455841Sgblack@eecs.umich.edu 3465841Sgblack@eecs.umich.edu # Get default build options from source tree. Options are 3475841Sgblack@eecs.umich.edu # normally determined by name of $BUILD_DIR, but can be 3485841Sgblack@eecs.umich.edu # overriden by 'default=' arg on command line. 3495841Sgblack@eecs.umich.edu default_opts_file = os.path.join('build_opts', 3505841Sgblack@eecs.umich.edu ARGUMENTS.get('default', build_dir)) 3515841Sgblack@eecs.umich.edu if os.path.isfile(default_opts_file): 3525615Sgblack@eecs.umich.edu sticky_opts.files.append(default_opts_file) 3535615Sgblack@eecs.umich.edu print "Options file %s not found,\n using defaults in %s" \ 3545615Sgblack@eecs.umich.edu % (current_opts_file, default_opts_file) 3555615Sgblack@eecs.umich.edu else: 3565641Sgblack@eecs.umich.edu print "Error: cannot find options file %s or %s" \ 3576135Sgblack@eecs.umich.edu % (current_opts_file, default_opts_file) 3586135Sgblack@eecs.umich.edu Exit(1) 3596135Sgblack@eecs.umich.edu 3606135Sgblack@eecs.umich.edu # Apply current option settings to env 3616135Sgblack@eecs.umich.edu sticky_opts.Update(env) 3626135Sgblack@eecs.umich.edu nonsticky_opts.Update(env) 3636135Sgblack@eecs.umich.edu 3645644Sgblack@eecs.umich.edu help_text += "Sticky options for %s:\n" % build_dir \ 3656135Sgblack@eecs.umich.edu + sticky_opts.GenerateHelpText(env) \ 3665644Sgblack@eecs.umich.edu + "\nNon-sticky options for %s:\n" % build_dir \ 3675644Sgblack@eecs.umich.edu + nonsticky_opts.GenerateHelpText(env) 3685644Sgblack@eecs.umich.edu 3696135Sgblack@eecs.umich.edu # Process option settings. 3705644Sgblack@eecs.umich.edu 3715644Sgblack@eecs.umich.edu if not have_fenv and env['USE_FENV']: 3725644Sgblack@eecs.umich.edu print "Warning: <fenv.h> not available; " \ 3735843Sgblack@eecs.umich.edu "forcing USE_FENV to False in", build_dir + "." 3745843Sgblack@eecs.umich.edu env['USE_FENV'] = False 3755843Sgblack@eecs.umich.edu 3765843Sgblack@eecs.umich.edu if not env['USE_FENV']: 3775843Sgblack@eecs.umich.edu print "Warning: No IEEE FP rounding mode control in", build_dir + "." 3785843Sgblack@eecs.umich.edu print " FP results may deviate slightly from other platforms." 3795843Sgblack@eecs.umich.edu 3805843Sgblack@eecs.umich.edu if env['EFENCE']: 3815843Sgblack@eecs.umich.edu env.Append(LIBS=['efence']) 3825843Sgblack@eecs.umich.edu 3835843Sgblack@eecs.umich.edu if env['USE_MYSQL']: 3846044Sgblack@eecs.umich.edu if not have_mysql: 3855843Sgblack@eecs.umich.edu print "Warning: MySQL not available; " \ 3866074Sgblack@eecs.umich.edu "forcing USE_MYSQL to False in", build_dir + "." 3876135Sgblack@eecs.umich.edu env['USE_MYSQL'] = False 3886135Sgblack@eecs.umich.edu else: 3896135Sgblack@eecs.umich.edu print "Compiling in", build_dir, "with MySQL support." 3906135Sgblack@eecs.umich.edu env.ParseConfig(mysql_config_libs) 3916135Sgblack@eecs.umich.edu env.ParseConfig(mysql_config_include) 3926135Sgblack@eecs.umich.edu 3936135Sgblack@eecs.umich.edu # Save sticky option settings back to current options file 3946135Sgblack@eecs.umich.edu sticky_opts.Save(current_opts_file, env) 3956135Sgblack@eecs.umich.edu 3966135Sgblack@eecs.umich.edu # Do this after we save setting back, or else we'll tack on an 3976135Sgblack@eecs.umich.edu # extra 'qdo' every time we run scons. 3986135Sgblack@eecs.umich.edu if env['BATCH']: 3996135Sgblack@eecs.umich.edu env['CC'] = env['BATCH_CMD'] + ' ' + env['CC'] 4006135Sgblack@eecs.umich.edu env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX'] 4016135Sgblack@eecs.umich.edu 4026135Sgblack@eecs.umich.edu if env['USE_SSE2']: 4036135Sgblack@eecs.umich.edu env.Append(CCFLAGS='-msse2') 4046135Sgblack@eecs.umich.edu 4056135Sgblack@eecs.umich.edu # The m5/SConscript file sets up the build rules in 'env' according 4066135Sgblack@eecs.umich.edu # to the configured options. It returns a list of environments, 4076135Sgblack@eecs.umich.edu # one for each variant build (debug, opt, etc.) 4086135Sgblack@eecs.umich.edu envList = SConscript('src/SConscript', build_dir = build_path, 4096135Sgblack@eecs.umich.edu exports = 'env', duplicate = False) 4105641Sgblack@eecs.umich.edu 4117925Sgblack@eecs.umich.edu # Set up the regression tests for each build. 4127925Sgblack@eecs.umich.edu# for e in envList: 4137925Sgblack@eecs.umich.edu# SConscript('m5-test/SConscript', 4147925Sgblack@eecs.umich.edu# build_dir = os.path.join(build_dir, 'test', e.Label), 4157925Sgblack@eecs.umich.edu# exports = { 'env' : e }, duplicate = False) 4167925Sgblack@eecs.umich.edu 4177925Sgblack@eecs.umich.eduHelp(help_text) 4187925Sgblack@eecs.umich.edu 4197925Sgblack@eecs.umich.edu################################################### 4207925Sgblack@eecs.umich.edu# 4217925Sgblack@eecs.umich.edu# Let SCons do its thing. At this point SCons will use the defined 4227925Sgblack@eecs.umich.edu# build environments to build the requested targets. 4237925Sgblack@eecs.umich.edu# 4247925Sgblack@eecs.umich.edu################################################### 4257925Sgblack@eecs.umich.edu 4267925Sgblack@eecs.umich.edu