1# -*- mode:python -*- 2 3# Copyright (c) 2004-2005 The Regents of The University of Michigan 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions are 8# met: redistributions of source code must retain the above copyright --- 13 unchanged lines hidden (view full) --- 22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28# 29# Authors: Steve Reinhardt |
30# Nathan Binkert |
31 32################################################### 33# 34# SCons top-level build description (SConstruct) file. 35# 36# While in this directory ('m5'), just type 'scons' to build the default 37# configuration (see below), or type 'scons build/<CONFIG>/<binary>' 38# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for --- 20 unchanged lines hidden (view full) --- 59# 60# You can use 'scons -H' to print scons options. If you're in this 61# 'm5' directory (or use -u or -C to tell scons where to find this 62# file), you can use 'scons -h' to print all the M5-specific build 63# options as well. 64# 65################################################### 66 |
67# Check for recent-enough Python and SCons versions. 68try: 69 # Really old versions of scons only take two options for the 70 # function, so check once without the revision and once with the 71 # revision, the first instance will fail for stuff other than 72 # 0.98, and the second will fail for 0.98.0 73 EnsureSConsVersion(0, 98) 74 EnsureSConsVersion(0, 98, 1) 75except SystemExit, e: 76 print """ 77For more details, see: 78 http://m5sim.org/wiki/index.php/Compiling_M5 79""" 80 raise 81 82# We ensure the python version early because we have stuff that 83# requires python 2.4 84try: 85 EnsurePythonVersion(2, 4) 86except SystemExit, e: 87 print """ 88You can use a non-default installation of the Python interpreter by 89either (1) rearranging your PATH so that scons finds the non-default 90'python' first or (2) explicitly invoking an alternative interpreter 91on the scons script. 92 93For more details, see: 94 http://m5sim.org/wiki/index.php/Using_a_non-default_Python_installation 95""" 96 raise 97 |
98import os 99import re |
100import subprocess 101import sys |
102 |
103from os import mkdir, environ 104from os.path import abspath, basename, dirname, expanduser, normpath 105from os.path import exists, isdir, isfile 106from os.path import join as joinpath, split as splitpath |
107 108import SCons 109 |
110def read_command(cmd): 111 """run the command cmd, read the results and return them 112 this is sorta like `cmd` in shell""" 113 from subprocess import Popen, PIPE, STDOUT 114 subp = Popen(cmd, shell=True, stdout=PIPE, stderr=STDOUT, close_fds=True) 115 return subp.communicate()[0] |
116 |
117# helper function: compare arrays or strings of version numbers. 118# E.g., compare_version((1,3,25), (1,4,1)') 119# returns -1, 0, 1 if v1 is <, ==, > v2 120def compare_versions(v1, v2): 121 def make_version_list(v): 122 if isinstance(v, (list,tuple)): 123 return v 124 elif isinstance(v, str): --- 7 unchanged lines hidden (view full) --- 132 for n1,n2 in zip(v1, v2): 133 if n1 < n2: return -1 134 if n1 > n2: return 1 135 # all corresponding values are equal... see if one has extra values 136 if len(v1) < len(v2): return -1 137 if len(v1) > len(v2): return 1 138 return 0 139 |
140# The absolute path to the current directory (where this file lives). 141ROOT = Dir('.').abspath 142 143# Path to the M5 source tree. 144SRCDIR = joinpath(ROOT, 'src') 145 146# tell python where to find m5 python code 147sys.path.append(joinpath(ROOT, 'src/python')) 148 |
149################################################### 150# Mercurial Stuff. 151# 1) Grab repository revision if we know it. 152# 2) Ensure that the style hook is in place. 153################################################### 154 155hg_info = "Unknown" 156try: 157 if not exists(ROOT) or not isdir(ROOT) or \ 158 not exists(joinpath(ROOT, ".hg")): 159 raise ValueError(".hg directory not found") 160 hg_info = read_command("cd %s; hg id -n -i -t -b" % ROOT).strip() 161except ImportError, e: 162 print "Mercurial not found" 163except ValueError, e: 164 print e 165except Exception, e: 166 print "Other mercurial exception: %s" % e 167 |
168def check_style_hook(ui): 169 ui.readconfig(joinpath(ROOT, '.hg', 'hgrc')) 170 style_hook = ui.config('hooks', 'pretxncommit.style', None) 171 172 if not style_hook: 173 print """\ 174You're missing the M5 style hook. 175Please install the hook so we can ensure that all code fits a common style. --- 12 unchanged lines hidden (view full) --- 188 189if ARGUMENTS.get('IGNORE_STYLE') != 'True' and isdir(joinpath(ROOT, '.hg')): 190 try: 191 from mercurial import ui 192 check_style_hook(ui.ui()) 193 except ImportError: 194 pass 195 |
196 |
197################################################### 198# 199# Figure out which configurations to set up based on the path(s) of 200# the target(s). 201# 202################################################### 203 204# Find default configuration & binary. |
205Default(environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug')) |
206 207# helper function: find last occurrence of element in list 208def rfind(l, elt, offs = -1): 209 for i in range(len(l)+offs, 0, -1): 210 if l[i] == elt: 211 return i 212 raise ValueError, "element not found" 213 214# Each target must have 'build' in the interior of the path; the 215# directory below this will determine the build parameters. For 216# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we 217# recognize that ALPHA_SE specifies the configuration because it 218# follow 'build' in the bulid path. 219 220# Generate absolute paths to targets so we can see where the build dir is 221if COMMAND_LINE_TARGETS: 222 # Ask SCons which directory it was invoked from 223 launch_dir = GetLaunchDir() 224 # Make targets relative to invocation directory |
225 abs_targets = [ normpath(joinpath(launch_dir, str(x))) for x in \ 226 COMMAND_LINE_TARGETS] |
227else: 228 # Default targets are relative to root of tree |
229 abs_targets = [ normpath(joinpath(ROOT, str(x))) for x in \ 230 DEFAULT_TARGETS] |
231 232 233# Generate a list of the unique build roots and configs that the 234# collected targets reference. |
235variant_paths = [] |
236build_root = None 237for t in abs_targets: 238 path_dirs = t.split('/') 239 try: 240 build_top = rfind(path_dirs, 'build', -2) 241 except: 242 print "Error: no non-leaf 'build' dir found on target path", t 243 Exit(1) 244 this_build_root = joinpath('/',*path_dirs[:build_top+1]) 245 if not build_root: 246 build_root = this_build_root 247 else: 248 if this_build_root != build_root: 249 print "Error: build targets not under same build root\n"\ 250 " %s\n %s" % (build_root, this_build_root) 251 Exit(1) |
252 variant_path = joinpath('/',*path_dirs[:build_top+2]) 253 if variant_path not in variant_paths: 254 variant_paths.append(variant_path) |
255 256# Make sure build_root exists (might not if this is the first build there) 257if not isdir(build_root): |
258 mkdir(build_root) |
259 260################################################### 261# 262# Set up the default build environment. This environment is copied 263# and modified according to each selected configuration. 264# 265################################################### 266 |
267env = Environment(ENV = environ, # inherit user's environment vars |
268 ROOT = ROOT, |
269 SRCDIR = SRCDIR, 270 HG_INFO = hg_info) |
271 272Export('env') 273 |
274env.SConsignFile(joinpath(build_root, "sconsign")) |
275 276# Default duplicate option is to use hard links, but this messes up 277# when you use emacs to edit a file in the target dir, as emacs moves 278# file to file~ then copies to file, breaking the link. Symbolic 279# (soft) links work better. 280env.SetOption('duplicate', 'soft-copy') 281 |
282# |
283# Set up global sticky variables... these are common to an entire build |
284# tree (not specific to a particular build like ALPHA_SE) 285# 286 |
287# Variable validators & converters for global sticky variables |
288def PathListMakeAbsolute(val): 289 if not val: 290 return val |
291 f = lambda p: abspath(expanduser(p)) |
292 return ':'.join(map(f, val.split(':'))) 293 294def PathListAllExist(key, val, env): 295 if not val: 296 return 297 paths = val.split(':') 298 for path in paths: 299 if not isdir(path): 300 raise SCons.Errors.UserError("Path does not exist: '%s'" % path) 301 |
302global_sticky_vars_file = joinpath(build_root, 'variables.global') |
303 |
304global_sticky_vars = Variables(global_sticky_vars_file, args=ARGUMENTS) |
305 |
306global_sticky_vars.AddVariables( 307 ('CC', 'C compiler', environ.get('CC', env['CC'])), 308 ('CXX', 'C++ compiler', environ.get('CXX', env['CXX'])), |
309 ('BATCH', 'Use batch pool for build and tests', False), 310 ('BATCH_CMD', 'Batch pool submission command name', 'qdo'), 311 ('EXTRAS', 'Add Extra directories to the compilation', '', 312 PathListAllExist, PathListMakeAbsolute) 313 ) 314 |
315# base help text 316help_text = ''' 317Usage: scons [scons options] [build options] [target(s)] 318 |
319Global sticky options: |
320''' 321 |
322help_text += global_sticky_vars.GenerateHelpText(env) |
323 |
324# Update env with values from ARGUMENTS & file global_sticky_vars_file 325global_sticky_vars.Update(env) |
326 |
327# Save sticky variable settings back to current variables file 328global_sticky_vars.Save(global_sticky_vars_file, env) |
329 |
330# Parse EXTRAS variable to build list of all directories where we're |
331# look for sources etc. This list is exported as base_dir_list. 332base_dir = joinpath(ROOT, 'src') 333if env['EXTRAS']: 334 extras_dir_list = env['EXTRAS'].split(':') 335else: 336 extras_dir_list = [] 337 338Export('base_dir') 339Export('extras_dir_list') 340 341# M5_PLY is used by isa_parser.py to find the PLY package. 342env.Append(ENV = { 'M5_PLY' : str(Dir('ext/ply')) }) |
343env['GCC'] = read_command(env['CXX'] + ' --version').find('g++') >= 0 344env['SUNCC'] = read_command(env['CXX'] + ' -V').find('Sun C++') >= 0 345env['ICC'] = read_command(env['CXX'] + ' -V').find('Intel') >= 0 |
346if env['GCC'] + env['SUNCC'] + env['ICC'] > 1: 347 print 'Error: How can we have two at the same time?' 348 Exit(1) 349 |
350# Set up default C++ compiler flags 351if env['GCC']: 352 env.Append(CCFLAGS='-pipe') 353 env.Append(CCFLAGS='-fno-strict-aliasing') 354 env.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef')) 355 env.Append(CXXFLAGS='-Wno-deprecated') 356elif env['ICC']: 357 pass #Fix me... add warning flags once we clean up icc warnings --- 25 unchanged lines hidden (view full) --- 383 384# Check for SWIG 385if not env.has_key('SWIG'): 386 print 'Error: SWIG utility not found.' 387 print ' Please install (see http://www.swig.org) and retry.' 388 Exit(1) 389 390# Check for appropriate SWIG version |
391swig_version = read_command('swig -version').split() |
392# First 3 words should be "SWIG Version x.y.z" 393if len(swig_version) < 3 or \ 394 swig_version[0] != 'SWIG' or swig_version[1] != 'Version': 395 print 'Error determining SWIG version.' 396 Exit(1) 397 398min_swig_version = '1.3.28' 399if compare_versions(swig_version[2], min_swig_version) < 0: --- 63 unchanged lines hidden (view full) --- 463# way so don't need to check the return code. 464conf.CheckLeading() 465 466# Check if we should compile a 64 bit binary on Mac OS X/Darwin 467try: 468 import platform 469 uname = platform.uname() 470 if uname[0] == 'Darwin' and compare_versions(uname[2], '9.0.0') >= 0: |
471 if int(read_command('sysctl -n hw.cpu64bit_capable')[0]): |
472 env.Append(CCFLAGS='-arch x86_64') 473 env.Append(CFLAGS='-arch x86_64') 474 env.Append(LINKFLAGS='-arch x86_64') 475 env.Append(ASFLAGS='-arch x86_64') 476except: 477 pass 478 479# Recent versions of scons substitute a "Null" object for Configure() --- 15 unchanged lines hidden (view full) --- 495 496 conf = NullConf(env) 497 498# Find Python include and library directories for embedding the 499# interpreter. For consistency, we will use the same Python 500# installation used to run scons (and thus this script). If you want 501# to link in an alternate version, see above for instructions on how 502# to invoke scons with a different copy of the Python interpreter. |
503from distutils import sysconfig |
504 |
505py_getvar = sysconfig.get_config_var |
506 |
507py_version = 'python' + py_getvar('VERSION') 508 509py_general_include = sysconfig.get_python_inc() 510py_platform_include = sysconfig.get_python_inc(plat_specific=True) 511py_includes = [ py_general_include ] 512if py_platform_include != py_general_include: 513 py_includes.append(py_platform_include) 514 515py_lib_path = [] 516# add the prefix/lib/pythonX.Y/config dir, but only if there is no 517# shared library in prefix/lib/. 518if not py_getvar('Py_ENABLE_SHARED'): 519 py_lib_path.append('-L' + py_getvar('LIBPL')) 520 521py_libs = [] 522for lib in py_getvar('LIBS').split() + py_getvar('SYSLIBS').split(): 523 if lib not in py_libs: 524 py_libs.append(lib) 525py_libs.append('-l' + py_version) 526 527env.Append(CPPPATH=py_includes) 528env.Append(LIBPATH=py_lib_path) 529#env.Append(LIBS=py_libs) 530 531# verify that this stuff works |
532if not conf.CheckHeader('Python.h', '<>'): |
533 print "Error: can't find Python.h header in", py_includes |
534 Exit(1) 535 |
536for lib in py_libs: 537 assert lib.startswith('-l') 538 lib = lib[2:] 539 if not conf.CheckLib(lib): 540 print "Error: can't find library %s required by python" % lib 541 Exit(1) |
542 543# On Solaris you need to use libsocket for socket ops 544if not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'): 545 if not conf.CheckLibWithHeader('socket', 'sys/socket.h', 'C++', 'accept(0,0,0);'): 546 print "Can't find library with socket calls (e.g. accept())" 547 Exit(1) 548 549# Check for zlib. If the check passes, libz will be automatically --- 5 unchanged lines hidden (view full) --- 555 Exit(1) 556 557# Check for <fenv.h> (C99 FP environment control) 558have_fenv = conf.CheckHeader('fenv.h', '<>') 559if not have_fenv: 560 print "Warning: Header file <fenv.h> not found." 561 print " This host has no IEEE FP rounding mode control." 562 |
563###################################################################### 564# |
565# Check for mysql. |
566# |
567mysql_config = WhereIs('mysql_config') |
568have_mysql = bool(mysql_config) |
569 570# Check MySQL version. 571if have_mysql: |
572 mysql_version = read_command(mysql_config + ' --version') |
573 min_mysql_version = '4.1' 574 if compare_versions(mysql_version, min_mysql_version) < 0: 575 print 'Warning: MySQL', min_mysql_version, 'or newer required.' 576 print ' Version', mysql_version, 'detected.' 577 have_mysql = False 578 579# Set up mysql_config commands. 580if have_mysql: 581 mysql_config_include = mysql_config + ' --include' 582 if os.system(mysql_config_include + ' > /dev/null') != 0: 583 # older mysql_config versions don't support --include, use 584 # --cflags instead 585 mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g' 586 # This seems to work in all versions 587 mysql_config_libs = mysql_config + ' --libs' 588 |
589###################################################################### 590# 591# Finish the configuration 592# |
593env = conf.Finish() 594 |
595###################################################################### 596# 597# Collect all non-global variables 598# 599 |
600# Define the universe of supported ISAs 601all_isa_list = [ ] 602Export('all_isa_list') 603 604# Define the universe of supported CPU models 605all_cpu_list = [ ] 606default_cpus = [ ] 607Export('all_cpu_list', 'default_cpus') 608 |
609# Sticky variables get saved in the variables file so they persist from |
610# one invocation to the next (unless overridden, in which case the new 611# value becomes sticky). |
612sticky_vars = Variables(args=ARGUMENTS) 613Export('sticky_vars') |
614 |
615# Non-sticky variables only apply to the current build. 616nonsticky_vars = Variables(args=ARGUMENTS) 617Export('nonsticky_vars') |
618 619# Walk the tree and execute all SConsopts scripts that wil add to the |
620# above variables |
621for bdir in [ base_dir ] + extras_dir_list: 622 for root, dirs, files in os.walk(bdir): 623 if 'SConsopts' in files: 624 print "Reading", joinpath(root, 'SConsopts') 625 SConscript(joinpath(root, 'SConsopts')) 626 627all_isa_list.sort() 628all_cpu_list.sort() 629default_cpus.sort() 630 |
631sticky_vars.AddVariables( 632 EnumVariable('TARGET_ISA', 'Target ISA', 'alpha', all_isa_list), 633 BoolVariable('FULL_SYSTEM', 'Full-system support', False), 634 ListVariable('CPU_MODELS', 'CPU models', default_cpus, all_cpu_list), 635 BoolVariable('NO_FAST_ALLOC', 'Disable fast object allocator', False), 636 BoolVariable('FAST_ALLOC_DEBUG', 'Enable fast object allocator debugging', 637 False), 638 BoolVariable('FAST_ALLOC_STATS', 'Enable fast object allocator statistics', 639 False), 640 BoolVariable('EFENCE', 'Link with Electric Fence malloc debugger', 641 False), 642 BoolVariable('SS_COMPATIBLE_FP', 643 'Make floating-point results compatible with SimpleScalar', 644 False), 645 BoolVariable('USE_SSE2', 646 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts', 647 False), 648 BoolVariable('USE_MYSQL', 'Use MySQL for stats output', have_mysql), 649 BoolVariable('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv), 650 BoolVariable('USE_CHECKER', 'Use checker for detailed CPU models', False), |
651 ) 652 |
653nonsticky_vars.AddVariables( 654 BoolVariable('update_ref', 'Update test reference outputs', False) |
655 ) 656 |
657# These variables get exported to #defines in config/*.hh (see src/SConscript). 658env.ExportVariables = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \ 659 'USE_MYSQL', 'NO_FAST_ALLOC', 'FAST_ALLOC_DEBUG', \ 660 'FAST_ALLOC_STATS', 'SS_COMPATIBLE_FP', \ 661 'USE_CHECKER', 'TARGET_ISA'] |
662 |
663################################################### 664# 665# Define a SCons builder for configuration flag headers. 666# 667################################################### 668 669# This function generates a config header file that #defines the |
670# variable symbol to the current variable setting (0 or 1). The source 671# operands are the name of the variable and a Value node containing the 672# value of the variable. |
673def build_config_file(target, source, env): |
674 (variable, value) = [s.get_contents() for s in source] |
675 f = file(str(target[0]), 'w') |
676 print >> f, '#define', variable, value |
677 f.close() 678 return None 679 680# Generate the message to be printed when building the config file. 681def build_config_file_string(target, source, env): |
682 (variable, value) = [s.get_contents() for s in source] 683 return "Defining %s as %s in %s." % (variable, value, target[0]) |
684 685# Combine the two functions into a scons Action object. 686config_action = Action(build_config_file, build_config_file_string) 687 688# The emitter munges the source & target node lists to reflect what 689# we're really doing. 690def config_emitter(target, source, env): |
691 # extract variable name from Builder arg 692 variable = str(target[0]) |
693 # True target is config header file |
694 target = joinpath('config', variable.lower() + '.hh') 695 val = env[variable] |
696 if isinstance(val, bool): 697 # Force value to 0/1 698 val = int(val) 699 elif isinstance(val, str): 700 val = '"' + val + '"' 701 |
702 # Sources are variable name & value (packaged in SCons Value nodes) 703 return ([target], [Value(variable), Value(val)]) |
704 705config_builder = Builder(emitter = config_emitter, action = config_action) 706 707env.Append(BUILDERS = { 'ConfigFile' : config_builder }) 708 |
709# libelf build is shared across all configs in the build root. 710env.SConscript('ext/libelf/SConscript', |
711 variant_dir = joinpath(build_root, 'libelf'), |
712 exports = 'env') 713 714# gzstream build is shared across all configs in the build root. 715env.SConscript('ext/gzstream/SConscript', |
716 variant_dir = joinpath(build_root, 'gzstream'), |
717 exports = 'env') 718 719################################################### 720# 721# This function is used to set up a directory with switching headers 722# 723################################################### 724 725env['ALL_ISA_LIST'] = all_isa_list |
726def make_switching_dir(dname, switch_headers, env): |
727 # Generate the header. target[0] is the full path of the output 728 # header to generate. 'source' is a dummy variable, since we get the 729 # list of ISAs from env['ALL_ISA_LIST']. 730 def gen_switch_hdr(target, source, env): 731 fname = str(target[0]) |
732 bname = basename(fname) |
733 f = open(fname, 'w') 734 f.write('#include "arch/isa_specific.hh"\n') 735 cond = '#if' 736 for isa in all_isa_list: 737 f.write('%s THE_ISA == %s_ISA\n#include "%s/%s/%s"\n' |
738 % (cond, isa.upper(), dname, isa, bname)) |
739 cond = '#elif' 740 f.write('#else\n#error "THE_ISA not set"\n#endif\n') 741 f.close() 742 return 0 743 744 # String to print when generating header 745 def gen_switch_hdr_string(target, source, env): 746 return "Generating switch header " + str(target[0]) --- 13 unchanged lines hidden (view full) --- 760# 761# Define build environments for selected configurations. 762# 763################################################### 764 765# rename base env 766base_env = env 767 |
768for variant_path in variant_paths: 769 print "Building in", variant_path |
770 771 # Make a copy of the build-root environment to use for this config. |
772 env = base_env.Clone() 773 env['BUILDDIR'] = variant_path |
774 |
775 # variant_dir is the tail component of build path, and is used to |
776 # determine the build parameters (e.g., 'ALPHA_SE') |
777 (build_root, variant_dir) = splitpath(variant_path) |
778 |
779 # Set env variables according to the build directory config. 780 sticky_vars.files = [] 781 # Variables for $BUILD_ROOT/$VARIANT_DIR are stored in 782 # $BUILD_ROOT/variables/$VARIANT_DIR so you can nuke 783 # $BUILD_ROOT/$VARIANT_DIR without losing your variables settings. 784 current_vars_file = joinpath(build_root, 'variables', variant_dir) 785 if isfile(current_vars_file): 786 sticky_vars.files.append(current_vars_file) 787 print "Using saved variables file %s" % current_vars_file |
788 else: |
789 # Build dir-specific variables file doesn't exist. |
790 791 # Make sure the directory is there so we can create it later |
792 opt_dir = dirname(current_vars_file) |
793 if not isdir(opt_dir): |
794 mkdir(opt_dir) |
795 |
796 # Get default build variables from source tree. Variables are 797 # normally determined by name of $VARIANT_DIR, but can be |
798 # overriden by 'default=' arg on command line. |
799 default_vars_file = joinpath('build_opts', 800 ARGUMENTS.get('default', variant_dir)) 801 if isfile(default_vars_file): 802 sticky_vars.files.append(default_vars_file) 803 print "Variables file %s not found,\n using defaults in %s" \ 804 % (current_vars_file, default_vars_file) |
805 else: |
806 print "Error: cannot find variables file %s or %s" \ 807 % (current_vars_file, default_vars_file) |
808 Exit(1) 809 |
810 # Apply current variable settings to env 811 sticky_vars.Update(env) 812 nonsticky_vars.Update(env) |
813 |
814 help_text += "\nSticky variables for %s:\n" % variant_dir \ 815 + sticky_vars.GenerateHelpText(env) \ 816 + "\nNon-sticky variables for %s:\n" % variant_dir \ 817 + nonsticky_vars.GenerateHelpText(env) |
818 |
819 # Process variable settings. |
820 821 if not have_fenv and env['USE_FENV']: 822 print "Warning: <fenv.h> not available; " \ |
823 "forcing USE_FENV to False in", variant_dir + "." |
824 env['USE_FENV'] = False 825 826 if not env['USE_FENV']: |
827 print "Warning: No IEEE FP rounding mode control in", variant_dir + "." |
828 print " FP results may deviate slightly from other platforms." 829 830 if env['EFENCE']: 831 env.Append(LIBS=['efence']) 832 833 if env['USE_MYSQL']: 834 if not have_mysql: 835 print "Warning: MySQL not available; " \ |
836 "forcing USE_MYSQL to False in", variant_dir + "." |
837 env['USE_MYSQL'] = False 838 else: |
839 print "Compiling in", variant_dir, "with MySQL support." |
840 env.ParseConfig(mysql_config_libs) 841 env.ParseConfig(mysql_config_include) 842 |
843 # Save sticky variable settings back to current variables file 844 sticky_vars.Save(current_vars_file, env) |
845 846 if env['USE_SSE2']: 847 env.Append(CCFLAGS='-msse2') 848 849 # The src/SConscript file sets up the build rules in 'env' according |
850 # to the configured variables. It returns a list of environments, |
851 # one for each variant build (debug, opt, etc.) |
852 envList = SConscript('src/SConscript', variant_dir = variant_path, |
853 exports = 'env') 854 855 # Set up the regression tests for each build. 856 for e in envList: 857 SConscript('tests/SConscript', |
858 variant_dir = joinpath(variant_path, 'tests', e.Label), |
859 exports = { 'env' : e }, duplicate = False) 860 861Help(help_text) 862 863 864################################################### 865# 866# Let SCons do its thing. At this point SCons will use the defined 867# build environments to build the requested targets. 868# 869################################################### 870 |