SConstruct revision 2665
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 30955SN/A 31955SN/A################################################### 32955SN/A# 33955SN/A# SCons top-level build description (SConstruct) file. 34955SN/A# 352632Sstever@eecs.umich.edu# While in this directory ('m5'), just type 'scons' to build the default 362632Sstever@eecs.umich.edu# configuration (see below), or type 'scons build/<CONFIG>/<binary>' 372632Sstever@eecs.umich.edu# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for 382632Sstever@eecs.umich.edu# the optimized full-system version). 39955SN/A# 402632Sstever@eecs.umich.edu# You can build M5 in a different directory as long as there is a 412632Sstever@eecs.umich.edu# 'build/<CONFIG>' somewhere along the target path. The build system 422632Sstever@eecs.umich.edu# expdects that all configs under the same build directory are being 432632Sstever@eecs.umich.edu# built for the same host system. 442632Sstever@eecs.umich.edu# 452632Sstever@eecs.umich.edu# Examples: 462632Sstever@eecs.umich.edu# These two commands are equivalent. The '-u' option tells scons to 472632Sstever@eecs.umich.edu# search up the directory tree for this SConstruct file. 482632Sstever@eecs.umich.edu# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug 492632Sstever@eecs.umich.edu# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug 502632Sstever@eecs.umich.edu# These two commands are equivalent and demonstrate building in a 512632Sstever@eecs.umich.edu# directory outside of the source tree. The '-C' option tells scons 522632Sstever@eecs.umich.edu# to chdir to the specified directory to find this SConstruct file. 532632Sstever@eecs.umich.edu# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug 542632Sstever@eecs.umich.edu# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug 552632Sstever@eecs.umich.edu# 562632Sstever@eecs.umich.edu# You can use 'scons -H' to print scons options. If you're in this 572632Sstever@eecs.umich.edu# 'm5' directory (or use -u or -C to tell scons where to find this 582632Sstever@eecs.umich.edu# file), you can use 'scons -h' to print all the M5-specific build 592632Sstever@eecs.umich.edu# options as well. 60955SN/A# 61955SN/A################################################### 62955SN/A 63955SN/A# Python library imports 64955SN/Aimport sys 65955SN/Aimport os 66955SN/A 672656Sstever@eecs.umich.edu# Check for recent-enough Python and SCons versions. If your system's 682656Sstever@eecs.umich.edu# default installation of Python is not recent enough, you can use a 692656Sstever@eecs.umich.edu# non-default installation of the Python interpreter by either (1) 702656Sstever@eecs.umich.edu# rearranging your PATH so that scons finds the non-default 'python' 712656Sstever@eecs.umich.edu# first or (2) explicitly invoking an alternative interpreter on the 722656Sstever@eecs.umich.edu# scons script, e.g., "/usr/local/bin/python2.4 `which scons` [args]". 732656Sstever@eecs.umich.eduEnsurePythonVersion(2,4) 742653Sstever@eecs.umich.edu 752653Sstever@eecs.umich.edu# Ironically, SCons 0.96 dies if you give EnsureSconsVersion a 762653Sstever@eecs.umich.edu# 3-element version number. 772653Sstever@eecs.umich.edumin_scons_version = (0,96,91) 782653Sstever@eecs.umich.edutry: 792653Sstever@eecs.umich.edu EnsureSConsVersion(*min_scons_version) 802653Sstever@eecs.umich.eduexcept: 812653Sstever@eecs.umich.edu print "Error checking current SCons version." 822653Sstever@eecs.umich.edu print "SCons", ".".join(map(str,min_scons_version)), "or greater required." 832653Sstever@eecs.umich.edu Exit(2) 842653Sstever@eecs.umich.edu 851852SN/A 86955SN/A# The absolute path to the current directory (where this file lives). 87955SN/AROOT = Dir('.').abspath 88955SN/A 892632Sstever@eecs.umich.edu# Paths to the M5 and external source trees. 902632Sstever@eecs.umich.eduSRCDIR = os.path.join(ROOT, 'src') 91955SN/A 921533SN/A# tell python where to find m5 python code 932632Sstever@eecs.umich.edusys.path.append(os.path.join(ROOT, 'src/python')) 941533SN/A 95955SN/A################################################### 96955SN/A# 972632Sstever@eecs.umich.edu# Figure out which configurations to set up based on the path(s) of 982632Sstever@eecs.umich.edu# the target(s). 99955SN/A# 100955SN/A################################################### 101955SN/A 102955SN/A# Find default configuration & binary. 1032632Sstever@eecs.umich.eduDefault(os.environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug')) 104955SN/A 1052632Sstever@eecs.umich.edu# Ask SCons which directory it was invoked from. 106955SN/Alaunch_dir = GetLaunchDir() 107955SN/A 1082632Sstever@eecs.umich.edu# Make targets relative to invocation directory 1092632Sstever@eecs.umich.eduabs_targets = map(lambda x: os.path.normpath(os.path.join(launch_dir, str(x))), 1102632Sstever@eecs.umich.edu BUILD_TARGETS) 1112632Sstever@eecs.umich.edu 1122632Sstever@eecs.umich.edu# helper function: find last occurrence of element in list 1132632Sstever@eecs.umich.edudef rfind(l, elt, offs = -1): 1142632Sstever@eecs.umich.edu for i in range(len(l)+offs, 0, -1): 1152632Sstever@eecs.umich.edu if l[i] == elt: 1162632Sstever@eecs.umich.edu return i 1172632Sstever@eecs.umich.edu raise ValueError, "element not found" 1182632Sstever@eecs.umich.edu 1192632Sstever@eecs.umich.edu# Each target must have 'build' in the interior of the path; the 1202632Sstever@eecs.umich.edu# directory below this will determine the build parameters. For 1212632Sstever@eecs.umich.edu# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we 1222632Sstever@eecs.umich.edu# recognize that ALPHA_SE specifies the configuration because it 1232632Sstever@eecs.umich.edu# follow 'build' in the bulid path. 1242632Sstever@eecs.umich.edu 1252634Sstever@eecs.umich.edu# Generate a list of the unique build roots and configs that the 1262634Sstever@eecs.umich.edu# collected targets reference. 1272632Sstever@eecs.umich.edubuild_paths = [] 1282638Sstever@eecs.umich.edubuild_root = None 1292632Sstever@eecs.umich.edufor t in abs_targets: 1302632Sstever@eecs.umich.edu path_dirs = t.split('/') 1312632Sstever@eecs.umich.edu try: 1322632Sstever@eecs.umich.edu build_top = rfind(path_dirs, 'build', -2) 1332632Sstever@eecs.umich.edu except: 1342632Sstever@eecs.umich.edu print "Error: no non-leaf 'build' dir found on target path", t 1351858SN/A Exit(1) 1362638Sstever@eecs.umich.edu this_build_root = os.path.join('/',*path_dirs[:build_top+1]) 1372638Sstever@eecs.umich.edu if not build_root: 1382638Sstever@eecs.umich.edu build_root = this_build_root 1392638Sstever@eecs.umich.edu else: 1402638Sstever@eecs.umich.edu if this_build_root != build_root: 1412638Sstever@eecs.umich.edu print "Error: build targets not under same build root\n"\ 1422638Sstever@eecs.umich.edu " %s\n %s" % (build_root, this_build_root) 1432638Sstever@eecs.umich.edu Exit(1) 1442634Sstever@eecs.umich.edu build_path = os.path.join('/',*path_dirs[:build_top+2]) 1452634Sstever@eecs.umich.edu if build_path not in build_paths: 1462634Sstever@eecs.umich.edu build_paths.append(build_path) 147955SN/A 148955SN/A################################################### 149955SN/A# 150955SN/A# Set up the default build environment. This environment is copied 151955SN/A# and modified according to each selected configuration. 152955SN/A# 153955SN/A################################################### 154955SN/A 1551858SN/Aenv = Environment(ENV = os.environ, # inherit user's environment vars 1561858SN/A ROOT = ROOT, 1572632Sstever@eecs.umich.edu SRCDIR = SRCDIR) 158955SN/A 1591858SN/Aenv.SConsignFile("sconsign") 1601105SN/A 1611869SN/A# I waffle on this setting... it does avoid a few painful but 1621869SN/A# unnecessary builds, but it also seems to make trivial builds take 1631869SN/A# noticeably longer. 1641869SN/Aif False: 1651869SN/A env.TargetSignatures('content') 1661065SN/A 1672632Sstever@eecs.umich.edu# M5_PLY is used by isa_parser.py to find the PLY package. 1682632Sstever@eecs.umich.eduenv.Append(ENV = { 'M5_PLY' : Dir('ext/ply') }) 169955SN/A 1701858SN/A# Set up default C++ compiler flags 1711858SN/Aenv.Append(CCFLAGS='-pipe') 1721858SN/Aenv.Append(CCFLAGS='-fno-strict-aliasing') 1731858SN/Aenv.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef')) 1741851SN/Aif sys.platform == 'cygwin': 1751851SN/A # cygwin has some header file issues... 1761858SN/A env.Append(CCFLAGS=Split("-Wno-uninitialized")) 1772632Sstever@eecs.umich.eduenv.Append(CPPPATH=[Dir('ext/dnet')]) 178955SN/A 1792656Sstever@eecs.umich.edu# Find Python include and library directories for embedding the 1802656Sstever@eecs.umich.edu# interpreter. For consistency, we will use the same Python 1812656Sstever@eecs.umich.edu# installation used to run scons (and thus this script). If you want 1822656Sstever@eecs.umich.edu# to link in an alternate version, see above for instructions on how 1832656Sstever@eecs.umich.edu# to invoke scons with a different copy of the Python interpreter. 1842656Sstever@eecs.umich.edu 1852656Sstever@eecs.umich.edu# Get brief Python version name (e.g., "python2.4") for locating 1862656Sstever@eecs.umich.edu# include & library files 1872656Sstever@eecs.umich.edupy_version_name = 'python' + sys.version[:3] 1882656Sstever@eecs.umich.edu 1892656Sstever@eecs.umich.edu# include path, e.g. /usr/local/include/python2.4 1902656Sstever@eecs.umich.eduenv.Append(CPPPATH = os.path.join(sys.exec_prefix, 'include', py_version_name)) 1912656Sstever@eecs.umich.eduenv.Append(LIBS = py_version_name) 1922656Sstever@eecs.umich.edu# add library path too if it's not in the default place 1932656Sstever@eecs.umich.eduif sys.exec_prefix != '/usr': 1942656Sstever@eecs.umich.edu env.Append(LIBPATH = os.path.join(sys.exec_prefix, 'lib')) 1952655Sstever@eecs.umich.edu 1962655Sstever@eecs.umich.edu# Other default libraries 1971858SN/Aenv.Append(LIBS=['z']) 1981858SN/A 1992638Sstever@eecs.umich.edu# Platform-specific configuration. Note again that we assume that all 2002638Sstever@eecs.umich.edu# builds under a given build root run on the same host platform. 2012638Sstever@eecs.umich.educonf = Configure(env, 2022638Sstever@eecs.umich.edu conf_dir = os.path.join(build_root, '.scons_config'), 2032638Sstever@eecs.umich.edu log_file = os.path.join(build_root, 'scons_config.log')) 2041858SN/A 2051858SN/A# Check for <fenv.h> (C99 FP environment control) 2061858SN/Ahave_fenv = conf.CheckHeader('fenv.h', '<>') 2071858SN/Aif not have_fenv: 2081858SN/A print "Warning: Header file <fenv.h> not found." 2091858SN/A print " This host has no IEEE FP rounding mode control." 2101858SN/A 2111859SN/A# Check for mysql. 2121858SN/Amysql_config = WhereIs('mysql_config') 2131858SN/Ahave_mysql = mysql_config != None 2141858SN/A 2151859SN/A# Check MySQL version. 2161859SN/Aif have_mysql: 2171862SN/A mysql_version = os.popen(mysql_config + ' --version').read() 2181862SN/A mysql_version = mysql_version.split('.') 2191862SN/A mysql_major = int(mysql_version[0]) 2201862SN/A mysql_minor = int(mysql_version[1]) 2211859SN/A # This version check is probably overly conservative, but it deals 2221859SN/A # with the versions we have installed. 2231963SN/A if mysql_major < 4 or (mysql_major == 4 and mysql_minor < 1): 2241963SN/A print "Warning: MySQL v4.1 or newer required." 2251859SN/A have_mysql = False 2261859SN/A 2271859SN/A# Set up mysql_config commands. 2281859SN/Aif have_mysql: 2291859SN/A mysql_config_include = mysql_config + ' --include' 2301859SN/A if os.system(mysql_config_include + ' > /dev/null') != 0: 2311859SN/A # older mysql_config versions don't support --include, use 2321859SN/A # --cflags instead 2331862SN/A mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g' 2341859SN/A # This seems to work in all versions 2351859SN/A mysql_config_libs = mysql_config + ' --libs' 2361859SN/A 2371858SN/Aenv = conf.Finish() 2381858SN/A 2392139SN/A# Define the universe of supported ISAs 2402139SN/Aenv['ALL_ISA_LIST'] = ['alpha', 'sparc', 'mips'] 2412139SN/A 2422155SN/A# Define the universe of supported CPU models 2432623SN/Aenv['ALL_CPU_LIST'] = ['AtomicSimpleCPU', 'TimingSimpleCPU', 2442637Sstever@eecs.umich.edu 'FullCPU', 'AlphaFullCPU'] 2452155SN/A 2461869SN/A# Sticky options get saved in the options file so they persist from 2471869SN/A# one invocation to the next (unless overridden, in which case the new 2481869SN/A# value becomes sticky). 2491869SN/Asticky_opts = Options(args=ARGUMENTS) 2501869SN/Asticky_opts.AddOptions( 2512139SN/A EnumOption('TARGET_ISA', 'Target ISA', 'alpha', env['ALL_ISA_LIST']), 2521869SN/A BoolOption('FULL_SYSTEM', 'Full-system support', False), 2532508SN/A # There's a bug in scons 0.96.1 that causes ListOptions with list 2542508SN/A # values (more than one value) not to be able to be restored from 2552508SN/A # a saved option file. If this causes trouble then upgrade to 2562508SN/A # scons 0.96.90 or later. 2572635Sstever@eecs.umich.edu ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU', 2582635Sstever@eecs.umich.edu env['ALL_CPU_LIST']), 2591869SN/A BoolOption('ALPHA_TLASER', 2601869SN/A 'Model Alpha TurboLaser platform (vs. Tsunami)', False), 2611869SN/A BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False), 2621869SN/A BoolOption('EFENCE', 'Link with Electric Fence malloc debugger', 2631869SN/A False), 2641869SN/A BoolOption('SS_COMPATIBLE_FP', 2651869SN/A 'Make floating-point results compatible with SimpleScalar', 2661869SN/A False), 2671965SN/A BoolOption('USE_SSE2', 2681965SN/A 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts', 2691965SN/A False), 2701869SN/A BoolOption('STATS_BINNING', 'Bin statistics by CPU mode', have_mysql), 2711869SN/A BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql), 2721869SN/A BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv), 2731869SN/A ('CC', 'C compiler', os.environ.get('CC', env['CC'])), 2741884SN/A ('CXX', 'C++ compiler', os.environ.get('CXX', env['CXX'])), 2751884SN/A BoolOption('BATCH', 'Use batch pool for build and tests', False), 2761884SN/A ('BATCH_CMD', 'Batch pool submission command name', 'qdo') 2771869SN/A ) 2781858SN/A 2791869SN/A# Non-sticky options only apply to the current build. 2801869SN/Anonsticky_opts = Options(args=ARGUMENTS) 2811869SN/Anonsticky_opts.AddOptions( 2821869SN/A BoolOption('update_ref', 'Update test reference outputs', False) 2831869SN/A ) 2841858SN/A 2851869SN/A# These options get exported to #defines in config/*.hh (see m5/SConscript). 2861869SN/Aenv.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \ 2871869SN/A 'USE_MYSQL', 'NO_FAST_ALLOC', 'SS_COMPATIBLE_FP', \ 2881869SN/A 'STATS_BINNING'] 2891869SN/A 2901869SN/A# Define a handy 'no-op' action 2911869SN/Adef no_action(target, source, env): 2921869SN/A return 0 2931869SN/A 2941869SN/Aenv.NoAction = Action(no_action, None) 2951858SN/A 296955SN/A################################################### 297955SN/A# 2981869SN/A# Define a SCons builder for configuration flag headers. 2991869SN/A# 3001869SN/A################################################### 3011869SN/A 3021869SN/A# This function generates a config header file that #defines the 3031869SN/A# option symbol to the current option setting (0 or 1). The source 3041869SN/A# operands are the name of the option and a Value node containing the 3051869SN/A# value of the option. 3061869SN/Adef build_config_file(target, source, env): 3071869SN/A (option, value) = [s.get_contents() for s in source] 3081869SN/A f = file(str(target[0]), 'w') 3091869SN/A print >> f, '#define', option, value 3101869SN/A f.close() 3111869SN/A return None 3121869SN/A 3131869SN/A# Generate the message to be printed when building the config file. 3141869SN/Adef build_config_file_string(target, source, env): 3151869SN/A (option, value) = [s.get_contents() for s in source] 3161869SN/A return "Defining %s as %s in %s." % (option, value, target[0]) 3171869SN/A 3181869SN/A# Combine the two functions into a scons Action object. 3191869SN/Aconfig_action = Action(build_config_file, build_config_file_string) 3201869SN/A 3211869SN/A# The emitter munges the source & target node lists to reflect what 3221869SN/A# we're really doing. 3231869SN/Adef config_emitter(target, source, env): 3241869SN/A # extract option name from Builder arg 3251869SN/A option = str(target[0]) 3261869SN/A # True target is config header file 3271869SN/A target = os.path.join('config', option.lower() + '.hh') 3281869SN/A # Force value to 0/1 even if it's a Python bool 3291869SN/A val = int(eval(str(env[option]))) 3301869SN/A # Sources are option name & value (packaged in SCons Value nodes) 3311869SN/A return ([target], [Value(option), Value(val)]) 3321869SN/A 3331869SN/Aconfig_builder = Builder(emitter = config_emitter, action = config_action) 3341869SN/A 3351869SN/Aenv.Append(BUILDERS = { 'ConfigFile' : config_builder }) 3361869SN/A 3372655Sstever@eecs.umich.edu################################################### 3382655Sstever@eecs.umich.edu# 3392655Sstever@eecs.umich.edu# Define a SCons builder for copying files. This is used by the 3402655Sstever@eecs.umich.edu# Python zipfile code in src/python/SConscript, but is placed up here 3412655Sstever@eecs.umich.edu# since it's potentially more generally applicable. 3422655Sstever@eecs.umich.edu# 3432655Sstever@eecs.umich.edu################################################### 3442655Sstever@eecs.umich.edu 3452655Sstever@eecs.umich.educopy_builder = Builder(action = Copy("$TARGET", "$SOURCE")) 3462655Sstever@eecs.umich.edu 3472655Sstever@eecs.umich.eduenv.Append(BUILDERS = { 'CopyFile' : copy_builder }) 3482655Sstever@eecs.umich.edu 3492655Sstever@eecs.umich.edu################################################### 3502655Sstever@eecs.umich.edu# 3512655Sstever@eecs.umich.edu# Define a simple SCons builder to concatenate files. 3522655Sstever@eecs.umich.edu# 3532655Sstever@eecs.umich.edu# Used to append the Python zip archive to the executable. 3542655Sstever@eecs.umich.edu# 3552655Sstever@eecs.umich.edu################################################### 3562655Sstever@eecs.umich.edu 3572655Sstever@eecs.umich.educoncat_builder = Builder(action = Action(['cat $SOURCES > $TARGET', 3582655Sstever@eecs.umich.edu 'chmod +x $TARGET'])) 3592655Sstever@eecs.umich.edu 3602655Sstever@eecs.umich.eduenv.Append(BUILDERS = { 'Concat' : concat_builder }) 3612655Sstever@eecs.umich.edu 3622655Sstever@eecs.umich.edu 3632634Sstever@eecs.umich.edu# base help text 3642634Sstever@eecs.umich.eduhelp_text = ''' 3652634Sstever@eecs.umich.eduUsage: scons [scons options] [build options] [target(s)] 3662634Sstever@eecs.umich.edu 3672634Sstever@eecs.umich.edu''' 3682634Sstever@eecs.umich.edu 3692638Sstever@eecs.umich.edu# libelf build is shared across all configs in the build root. 3702638Sstever@eecs.umich.eduenv.SConscript('ext/libelf/SConscript', 3712638Sstever@eecs.umich.edu build_dir = os.path.join(build_root, 'libelf'), 3722638Sstever@eecs.umich.edu exports = 'env') 3732638Sstever@eecs.umich.edu 3741869SN/A################################################### 3751869SN/A# 376955SN/A# Define build environments for selected configurations. 377955SN/A# 378955SN/A################################################### 379955SN/A 3801858SN/A# rename base env 3811858SN/Abase_env = env 3821858SN/A 3832632Sstever@eecs.umich.edufor build_path in build_paths: 3842632Sstever@eecs.umich.edu print "Building in", build_path 3852632Sstever@eecs.umich.edu # build_dir is the tail component of build path, and is used to 3862632Sstever@eecs.umich.edu # determine the build parameters (e.g., 'ALPHA_SE') 3872632Sstever@eecs.umich.edu (build_root, build_dir) = os.path.split(build_path) 3882634Sstever@eecs.umich.edu # Make a copy of the build-root environment to use for this config. 3892638Sstever@eecs.umich.edu env = base_env.Copy() 3902023SN/A 3912632Sstever@eecs.umich.edu # Set env options according to the build directory config. 3922632Sstever@eecs.umich.edu sticky_opts.files = [] 3932632Sstever@eecs.umich.edu # Options for $BUILD_ROOT/$BUILD_DIR are stored in 3942632Sstever@eecs.umich.edu # $BUILD_ROOT/options/$BUILD_DIR so you can nuke 3952632Sstever@eecs.umich.edu # $BUILD_ROOT/$BUILD_DIR without losing your options settings. 3962632Sstever@eecs.umich.edu current_opts_file = os.path.join(build_root, 'options', build_dir) 3972632Sstever@eecs.umich.edu if os.path.isfile(current_opts_file): 3982632Sstever@eecs.umich.edu sticky_opts.files.append(current_opts_file) 3992632Sstever@eecs.umich.edu print "Using saved options file %s" % current_opts_file 4002632Sstever@eecs.umich.edu else: 4012632Sstever@eecs.umich.edu # Build dir-specific options file doesn't exist. 4022023SN/A 4032632Sstever@eecs.umich.edu # Make sure the directory is there so we can create it later 4042632Sstever@eecs.umich.edu opt_dir = os.path.dirname(current_opts_file) 4051889SN/A if not os.path.isdir(opt_dir): 4061889SN/A os.mkdir(opt_dir) 4072632Sstever@eecs.umich.edu 4082632Sstever@eecs.umich.edu # Get default build options from source tree. Options are 4092632Sstever@eecs.umich.edu # normally determined by name of $BUILD_DIR, but can be 4102632Sstever@eecs.umich.edu # overriden by 'default=' arg on command line. 4112632Sstever@eecs.umich.edu default_opts_file = os.path.join('build_opts', 4122632Sstever@eecs.umich.edu ARGUMENTS.get('default', build_dir)) 4132632Sstever@eecs.umich.edu if os.path.isfile(default_opts_file): 4142632Sstever@eecs.umich.edu sticky_opts.files.append(default_opts_file) 4152632Sstever@eecs.umich.edu print "Options file %s not found,\n using defaults in %s" \ 4162632Sstever@eecs.umich.edu % (current_opts_file, default_opts_file) 4172632Sstever@eecs.umich.edu else: 4182632Sstever@eecs.umich.edu print "Error: cannot find options file %s or %s" \ 4192632Sstever@eecs.umich.edu % (current_opts_file, default_opts_file) 4202632Sstever@eecs.umich.edu Exit(1) 4211888SN/A 4221888SN/A # Apply current option settings to env 4231869SN/A sticky_opts.Update(env) 4241869SN/A nonsticky_opts.Update(env) 4251858SN/A 4262598SN/A help_text += "Sticky options for %s:\n" % build_dir \ 4272598SN/A + sticky_opts.GenerateHelpText(env) \ 4282598SN/A + "\nNon-sticky options for %s:\n" % build_dir \ 4292598SN/A + nonsticky_opts.GenerateHelpText(env) 4302598SN/A 4311858SN/A # Process option settings. 4321858SN/A 4331858SN/A if not have_fenv and env['USE_FENV']: 4341858SN/A print "Warning: <fenv.h> not available; " \ 4351858SN/A "forcing USE_FENV to False in", build_dir + "." 4361858SN/A env['USE_FENV'] = False 4371858SN/A 4381858SN/A if not env['USE_FENV']: 4391858SN/A print "Warning: No IEEE FP rounding mode control in", build_dir + "." 4401871SN/A print " FP results may deviate slightly from other platforms." 4411858SN/A 4421858SN/A if env['EFENCE']: 4431858SN/A env.Append(LIBS=['efence']) 4441858SN/A 4451858SN/A if env['USE_MYSQL']: 4461858SN/A if not have_mysql: 4471858SN/A print "Warning: MySQL not available; " \ 4481858SN/A "forcing USE_MYSQL to False in", build_dir + "." 4491858SN/A env['USE_MYSQL'] = False 4501858SN/A else: 4511858SN/A print "Compiling in", build_dir, "with MySQL support." 4521859SN/A env.ParseConfig(mysql_config_libs) 4531859SN/A env.ParseConfig(mysql_config_include) 4541869SN/A 4551888SN/A # Save sticky option settings back to current options file 4562632Sstever@eecs.umich.edu sticky_opts.Save(current_opts_file, env) 4571869SN/A 4581884SN/A # Do this after we save setting back, or else we'll tack on an 4591884SN/A # extra 'qdo' every time we run scons. 4601884SN/A if env['BATCH']: 4611884SN/A env['CC'] = env['BATCH_CMD'] + ' ' + env['CC'] 4621884SN/A env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX'] 4631884SN/A 4641965SN/A if env['USE_SSE2']: 4651965SN/A env.Append(CCFLAGS='-msse2') 4661965SN/A 467955SN/A # The m5/SConscript file sets up the build rules in 'env' according 4681869SN/A # to the configured options. It returns a list of environments, 4691869SN/A # one for each variant build (debug, opt, etc.) 4702632Sstever@eecs.umich.edu envList = SConscript('src/SConscript', build_dir = build_path, 4711869SN/A exports = 'env', duplicate = False) 4721869SN/A 4731869SN/A # Set up the regression tests for each build. 4742632Sstever@eecs.umich.edu# for e in envList: 4752632Sstever@eecs.umich.edu# SConscript('m5-test/SConscript', 4762632Sstever@eecs.umich.edu# build_dir = os.path.join(build_dir, 'test', e.Label), 4772632Sstever@eecs.umich.edu# exports = { 'env' : e }, duplicate = False) 478955SN/A 4792598SN/AHelp(help_text) 4802598SN/A 481955SN/A################################################### 482955SN/A# 483955SN/A# Let SCons do its thing. At this point SCons will use the defined 4841530SN/A# build environments to build the requested targets. 485955SN/A# 486955SN/A################################################### 487955SN/A 488