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
9# notice, this list of conditions and the following disclaimer;
10# redistributions in binary form must reproduce the above copyright
11# notice, this list of conditions and the following disclaimer in the
12# documentation and/or other materials provided with the distribution;
13# neither the name of the copyright holders nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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
31###################################################
32#
33# SCons top-level build description (SConstruct) file.
34#
35# While in this directory ('m5'), just type 'scons' to build the default
36# configuration (see below), or type 'scons build/<CONFIG>/<binary>'
37# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for
38# the optimized full-system version).
39#
40# You can build M5 in a different directory as long as there is a
41# 'build/<CONFIG>' somewhere along the target path. The build system
42# expects that all configs under the same build directory are being
43# built for the same host system.
44#
45# Examples:
46#
47# The following two commands are equivalent. The '-u' option tells
48# scons to search up the directory tree for this SConstruct file.
49# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug
50# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug
51#
52# The following two commands are equivalent and demonstrate building
53# in a directory outside of the source tree. The '-C' option tells
54# scons to chdir to the specified directory to find this SConstruct
55# file.
56# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug
57# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug
58#
59# You can use 'scons -H' to print scons options. If you're in this
60# 'm5' directory (or use -u or -C to tell scons where to find this
61# file), you can use 'scons -h' to print all the M5-specific build
62# options as well.
63#
64###################################################
65
66# Python library imports
67import sys
68import os
69import subprocess
70from os.path import join as joinpath
71
72# Check for recent-enough Python and SCons versions. If your system's
73# default installation of Python is not recent enough, you can use a
74# non-default installation of the Python interpreter by either (1)
75# rearranging your PATH so that scons finds the non-default 'python'
76# first or (2) explicitly invoking an alternative interpreter on the
77# scons script, e.g., "/usr/local/bin/python2.4 `which scons` [args]".
78EnsurePythonVersion(2,4)
79
80# Ironically, SCons 0.96 dies if you give EnsureSconsVersion a
81# 3-element version number.
82min_scons_version = (0,96,91)
83try:
84 EnsureSConsVersion(*min_scons_version)
85except:
86 print "Error checking current SCons version."
87 print "SCons", ".".join(map(str,min_scons_version)), "or greater required."
88 Exit(2)
89
90
91# The absolute path to the current directory (where this file lives).
92ROOT = Dir('.').abspath
93
94# Path to the M5 source tree.
95SRCDIR = joinpath(ROOT, 'src')
96
97# tell python where to find m5 python code
98sys.path.append(joinpath(ROOT, 'src/python'))
99
100###################################################
101#
102# Figure out which configurations to set up based on the path(s) of
103# the target(s).
104#
105###################################################
106
107# Find default configuration & binary.
108Default(os.environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug'))
109
110# helper function: find last occurrence of element in list
111def rfind(l, elt, offs = -1):
112 for i in range(len(l)+offs, 0, -1):
113 if l[i] == elt:
114 return i
115 raise ValueError, "element not found"
116
117# helper function: compare dotted 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 # Convert dotted strings to lists
122 v1 = map(int, v1.split('.'))
123 v2 = map(int, v2.split('.'))
124 # Compare corresponding elements of lists
125 for n1,n2 in zip(v1, v2):
126 if n1 < n2: return -1
127 if n1 > n2: return 1
128 # all corresponding values are equal... see if one has extra values
129 if len(v1) < len(v2): return -1
130 if len(v1) > len(v2): return 1
131 return 0
132
133# Each target must have 'build' in the interior of the path; the
134# directory below this will determine the build parameters. For
135# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we
136# recognize that ALPHA_SE specifies the configuration because it
137# follow 'build' in the bulid path.
138
139# Generate absolute paths to targets so we can see where the build dir is
140if COMMAND_LINE_TARGETS:
141 # Ask SCons which directory it was invoked from
142 launch_dir = GetLaunchDir()
143 # Make targets relative to invocation directory
144 abs_targets = map(lambda x: os.path.normpath(joinpath(launch_dir, str(x))),
145 COMMAND_LINE_TARGETS)
146else:
147 # Default targets are relative to root of tree
148 abs_targets = map(lambda x: os.path.normpath(joinpath(ROOT, str(x))),
149 DEFAULT_TARGETS)
150
151
152# Generate a list of the unique build roots and configs that the
153# collected targets reference.
154build_paths = []
155build_root = None
156for t in abs_targets:
157 path_dirs = t.split('/')
158 try:
159 build_top = rfind(path_dirs, 'build', -2)
160 except:
161 print "Error: no non-leaf 'build' dir found on target path", t
162 Exit(1)
163 this_build_root = joinpath('/',*path_dirs[:build_top+1])
164 if not build_root:
165 build_root = this_build_root
166 else:
167 if this_build_root != build_root:
168 print "Error: build targets not under same build root\n"\
169 " %s\n %s" % (build_root, this_build_root)
170 Exit(1)
171 build_path = joinpath('/',*path_dirs[:build_top+2])
172 if build_path not in build_paths:
173 build_paths.append(build_path)
174
175###################################################
176#
177# Set up the default build environment. This environment is copied
178# and modified according to each selected configuration.
179#
180###################################################
181
182env = Environment(ENV = os.environ, # inherit user's environment vars
183 ROOT = ROOT,
184 SRCDIR = SRCDIR)
185
186#Parse CC/CXX early so that we use the correct compiler for
187# to test for dependencies/versions/libraries/includes
188if ARGUMENTS.get('CC', None):
189 env['CC'] = ARGUMENTS.get('CC')
190
191if ARGUMENTS.get('CXX', None):
192 env['CXX'] = ARGUMENTS.get('CXX')
193
194env.SConsignFile(joinpath(build_root,"sconsign"))
195
196# Default duplicate option is to use hard links, but this messes up
197# when you use emacs to edit a file in the target dir, as emacs moves
198# file to file~ then copies to file, breaking the link. Symbolic
199# (soft) links work better.
200env.SetOption('duplicate', 'soft-copy')
201
202# I waffle on this setting... it does avoid a few painful but
203# unnecessary builds, but it also seems to make trivial builds take
204# noticeably longer.
205if False:
206 env.TargetSignatures('content')
207
208# M5_PLY is used by isa_parser.py to find the PLY package.
209env.Append(ENV = { 'M5_PLY' : Dir('ext/ply') })
210env['GCC'] = False
211env['SUNCC'] = False
| 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
9# notice, this list of conditions and the following disclaimer;
10# redistributions in binary form must reproduce the above copyright
11# notice, this list of conditions and the following disclaimer in the
12# documentation and/or other materials provided with the distribution;
13# neither the name of the copyright holders nor the names of its
14# contributors may be used to endorse or promote products derived from
15# this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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
31###################################################
32#
33# SCons top-level build description (SConstruct) file.
34#
35# While in this directory ('m5'), just type 'scons' to build the default
36# configuration (see below), or type 'scons build/<CONFIG>/<binary>'
37# to build some other configuration (e.g., 'build/ALPHA_FS/m5.opt' for
38# the optimized full-system version).
39#
40# You can build M5 in a different directory as long as there is a
41# 'build/<CONFIG>' somewhere along the target path. The build system
42# expects that all configs under the same build directory are being
43# built for the same host system.
44#
45# Examples:
46#
47# The following two commands are equivalent. The '-u' option tells
48# scons to search up the directory tree for this SConstruct file.
49# % cd <path-to-src>/m5 ; scons build/ALPHA_FS/m5.debug
50# % cd <path-to-src>/m5/build/ALPHA_FS; scons -u m5.debug
51#
52# The following two commands are equivalent and demonstrate building
53# in a directory outside of the source tree. The '-C' option tells
54# scons to chdir to the specified directory to find this SConstruct
55# file.
56# % cd <path-to-src>/m5 ; scons /local/foo/build/ALPHA_FS/m5.debug
57# % cd /local/foo/build/ALPHA_FS; scons -C <path-to-src>/m5 m5.debug
58#
59# You can use 'scons -H' to print scons options. If you're in this
60# 'm5' directory (or use -u or -C to tell scons where to find this
61# file), you can use 'scons -h' to print all the M5-specific build
62# options as well.
63#
64###################################################
65
66# Python library imports
67import sys
68import os
69import subprocess
70from os.path import join as joinpath
71
72# Check for recent-enough Python and SCons versions. If your system's
73# default installation of Python is not recent enough, you can use a
74# non-default installation of the Python interpreter by either (1)
75# rearranging your PATH so that scons finds the non-default 'python'
76# first or (2) explicitly invoking an alternative interpreter on the
77# scons script, e.g., "/usr/local/bin/python2.4 `which scons` [args]".
78EnsurePythonVersion(2,4)
79
80# Ironically, SCons 0.96 dies if you give EnsureSconsVersion a
81# 3-element version number.
82min_scons_version = (0,96,91)
83try:
84 EnsureSConsVersion(*min_scons_version)
85except:
86 print "Error checking current SCons version."
87 print "SCons", ".".join(map(str,min_scons_version)), "or greater required."
88 Exit(2)
89
90
91# The absolute path to the current directory (where this file lives).
92ROOT = Dir('.').abspath
93
94# Path to the M5 source tree.
95SRCDIR = joinpath(ROOT, 'src')
96
97# tell python where to find m5 python code
98sys.path.append(joinpath(ROOT, 'src/python'))
99
100###################################################
101#
102# Figure out which configurations to set up based on the path(s) of
103# the target(s).
104#
105###################################################
106
107# Find default configuration & binary.
108Default(os.environ.get('M5_DEFAULT_BINARY', 'build/ALPHA_SE/m5.debug'))
109
110# helper function: find last occurrence of element in list
111def rfind(l, elt, offs = -1):
112 for i in range(len(l)+offs, 0, -1):
113 if l[i] == elt:
114 return i
115 raise ValueError, "element not found"
116
117# helper function: compare dotted 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 # Convert dotted strings to lists
122 v1 = map(int, v1.split('.'))
123 v2 = map(int, v2.split('.'))
124 # Compare corresponding elements of lists
125 for n1,n2 in zip(v1, v2):
126 if n1 < n2: return -1
127 if n1 > n2: return 1
128 # all corresponding values are equal... see if one has extra values
129 if len(v1) < len(v2): return -1
130 if len(v1) > len(v2): return 1
131 return 0
132
133# Each target must have 'build' in the interior of the path; the
134# directory below this will determine the build parameters. For
135# example, for target 'foo/bar/build/ALPHA_SE/arch/alpha/blah.do' we
136# recognize that ALPHA_SE specifies the configuration because it
137# follow 'build' in the bulid path.
138
139# Generate absolute paths to targets so we can see where the build dir is
140if COMMAND_LINE_TARGETS:
141 # Ask SCons which directory it was invoked from
142 launch_dir = GetLaunchDir()
143 # Make targets relative to invocation directory
144 abs_targets = map(lambda x: os.path.normpath(joinpath(launch_dir, str(x))),
145 COMMAND_LINE_TARGETS)
146else:
147 # Default targets are relative to root of tree
148 abs_targets = map(lambda x: os.path.normpath(joinpath(ROOT, str(x))),
149 DEFAULT_TARGETS)
150
151
152# Generate a list of the unique build roots and configs that the
153# collected targets reference.
154build_paths = []
155build_root = None
156for t in abs_targets:
157 path_dirs = t.split('/')
158 try:
159 build_top = rfind(path_dirs, 'build', -2)
160 except:
161 print "Error: no non-leaf 'build' dir found on target path", t
162 Exit(1)
163 this_build_root = joinpath('/',*path_dirs[:build_top+1])
164 if not build_root:
165 build_root = this_build_root
166 else:
167 if this_build_root != build_root:
168 print "Error: build targets not under same build root\n"\
169 " %s\n %s" % (build_root, this_build_root)
170 Exit(1)
171 build_path = joinpath('/',*path_dirs[:build_top+2])
172 if build_path not in build_paths:
173 build_paths.append(build_path)
174
175###################################################
176#
177# Set up the default build environment. This environment is copied
178# and modified according to each selected configuration.
179#
180###################################################
181
182env = Environment(ENV = os.environ, # inherit user's environment vars
183 ROOT = ROOT,
184 SRCDIR = SRCDIR)
185
186#Parse CC/CXX early so that we use the correct compiler for
187# to test for dependencies/versions/libraries/includes
188if ARGUMENTS.get('CC', None):
189 env['CC'] = ARGUMENTS.get('CC')
190
191if ARGUMENTS.get('CXX', None):
192 env['CXX'] = ARGUMENTS.get('CXX')
193
194env.SConsignFile(joinpath(build_root,"sconsign"))
195
196# Default duplicate option is to use hard links, but this messes up
197# when you use emacs to edit a file in the target dir, as emacs moves
198# file to file~ then copies to file, breaking the link. Symbolic
199# (soft) links work better.
200env.SetOption('duplicate', 'soft-copy')
201
202# I waffle on this setting... it does avoid a few painful but
203# unnecessary builds, but it also seems to make trivial builds take
204# noticeably longer.
205if False:
206 env.TargetSignatures('content')
207
208# M5_PLY is used by isa_parser.py to find the PLY package.
209env.Append(ENV = { 'M5_PLY' : Dir('ext/ply') })
210env['GCC'] = False
211env['SUNCC'] = False
|
238 Exit(1)
239
240if sys.platform == 'cygwin':
241 # cygwin has some header file issues...
242 env.Append(CCFLAGS=Split("-Wno-uninitialized"))
243env.Append(CPPPATH=[Dir('ext/dnet')])
244
245# Check for SWIG
246if not env.has_key('SWIG'):
247 print 'Error: SWIG utility not found.'
248 print ' Please install (see http://www.swig.org) and retry.'
249 Exit(1)
250
251# Check for appropriate SWIG version
252swig_version = os.popen('swig -version').read().split()
253# First 3 words should be "SWIG Version x.y.z"
254if swig_version[0] != 'SWIG' or swig_version[1] != 'Version':
255 print 'Error determining SWIG version.'
256 Exit(1)
257
258min_swig_version = '1.3.28'
259if compare_versions(swig_version[2], min_swig_version) < 0:
260 print 'Error: SWIG version', min_swig_version, 'or newer required.'
261 print ' Installed version:', swig_version[2]
262 Exit(1)
263
264# Set up SWIG flags & scanner
265env.Append(SWIGFLAGS=Split('-c++ -python -modern $_CPPINCFLAGS'))
266
267import SCons.Scanner
268
269swig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
270
271swig_scanner = SCons.Scanner.ClassicCPP("SwigScan", ".i", "CPPPATH",
272 swig_inc_re)
273
274env.Append(SCANNERS = swig_scanner)
275
276# Platform-specific configuration. Note again that we assume that all
277# builds under a given build root run on the same host platform.
278conf = Configure(env,
279 conf_dir = joinpath(build_root, '.scons_config'),
280 log_file = joinpath(build_root, 'scons_config.log'))
281
282# Find Python include and library directories for embedding the
283# interpreter. For consistency, we will use the same Python
284# installation used to run scons (and thus this script). If you want
285# to link in an alternate version, see above for instructions on how
286# to invoke scons with a different copy of the Python interpreter.
287
288# Get brief Python version name (e.g., "python2.4") for locating
289# include & library files
290py_version_name = 'python' + sys.version[:3]
291
292# include path, e.g. /usr/local/include/python2.4
293py_header_path = joinpath(sys.exec_prefix, 'include', py_version_name)
294env.Append(CPPPATH = py_header_path)
295# verify that it works
296if not conf.CheckHeader('Python.h', '<>'):
297 print "Error: can't find Python.h header in", py_header_path
298 Exit(1)
299
300# add library path too if it's not in the default place
301py_lib_path = None
302if sys.exec_prefix != '/usr':
303 py_lib_path = joinpath(sys.exec_prefix, 'lib')
304elif sys.platform == 'cygwin':
305 # cygwin puts the .dll in /bin for some reason
306 py_lib_path = '/bin'
307if py_lib_path:
308 env.Append(LIBPATH = py_lib_path)
309 print 'Adding', py_lib_path, 'to LIBPATH for', py_version_name
310if not conf.CheckLib(py_version_name):
311 print "Error: can't find Python library", py_version_name
312 Exit(1)
313
314# On Solaris you need to use libsocket for socket ops
315if not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'):
316 if not conf.CheckLibWithHeader('socket', 'sys/socket.h', 'C++', 'accept(0,0,0);'):
317 print "Can't find library with socket calls (e.g. accept())"
318 Exit(1)
319
320# Check for zlib. If the check passes, libz will be automatically
321# added to the LIBS environment variable.
322if not conf.CheckLibWithHeader('z', 'zlib.h', 'C++','zlibVersion();'):
323 print 'Error: did not find needed zlib compression library '\
324 'and/or zlib.h header file.'
325 print ' Please install zlib and try again.'
326 Exit(1)
327
328# Check for <fenv.h> (C99 FP environment control)
329have_fenv = conf.CheckHeader('fenv.h', '<>')
330if not have_fenv:
331 print "Warning: Header file <fenv.h> not found."
332 print " This host has no IEEE FP rounding mode control."
333
334# Check for mysql.
335mysql_config = WhereIs('mysql_config')
336have_mysql = mysql_config != None
337
338# Check MySQL version.
339if have_mysql:
340 mysql_version = os.popen(mysql_config + ' --version').read()
341 min_mysql_version = '4.1'
342 if compare_versions(mysql_version, min_mysql_version) < 0:
343 print 'Warning: MySQL', min_mysql_version, 'or newer required.'
344 print ' Version', mysql_version, 'detected.'
345 have_mysql = False
346
347# Set up mysql_config commands.
348if have_mysql:
349 mysql_config_include = mysql_config + ' --include'
350 if os.system(mysql_config_include + ' > /dev/null') != 0:
351 # older mysql_config versions don't support --include, use
352 # --cflags instead
353 mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
354 # This seems to work in all versions
355 mysql_config_libs = mysql_config + ' --libs'
356
357env = conf.Finish()
358
359# Define the universe of supported ISAs
360env['ALL_ISA_LIST'] = ['alpha', 'sparc', 'mips']
361
362# Define the universe of supported CPU models
363env['ALL_CPU_LIST'] = ['AtomicSimpleCPU', 'TimingSimpleCPU',
364 'O3CPU', 'OzoneCPU']
365
366if os.path.isdir(joinpath(SRCDIR, 'encumbered/cpu/full')):
367 env['ALL_CPU_LIST'] += ['FullCPU']
368
369# Sticky options get saved in the options file so they persist from
370# one invocation to the next (unless overridden, in which case the new
371# value becomes sticky).
372sticky_opts = Options(args=ARGUMENTS)
373sticky_opts.AddOptions(
374 EnumOption('TARGET_ISA', 'Target ISA', 'alpha', env['ALL_ISA_LIST']),
375 BoolOption('FULL_SYSTEM', 'Full-system support', False),
376 # There's a bug in scons 0.96.1 that causes ListOptions with list
377 # values (more than one value) not to be able to be restored from
378 # a saved option file. If this causes trouble then upgrade to
379 # scons 0.96.90 or later.
380 ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU,O3CPU',
381 env['ALL_CPU_LIST']),
382 BoolOption('ALPHA_TLASER',
383 'Model Alpha TurboLaser platform (vs. Tsunami)', False),
384 BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False),
385 BoolOption('EFENCE', 'Link with Electric Fence malloc debugger',
386 False),
387 BoolOption('SS_COMPATIBLE_FP',
388 'Make floating-point results compatible with SimpleScalar',
389 False),
390 BoolOption('USE_SSE2',
391 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts',
392 False),
393 BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql),
394 BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv),
395 BoolOption('USE_CHECKER', 'Use checker for detailed CPU models', False),
396 ('CC', 'C compiler', os.environ.get('CC', env['CC'])),
397 ('CXX', 'C++ compiler', os.environ.get('CXX', env['CXX'])),
398 BoolOption('BATCH', 'Use batch pool for build and tests', False),
399 ('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
400 ('PYTHONHOME',
401 'Override the default PYTHONHOME for this system (use with caution)',
402 '%s:%s' % (sys.prefix, sys.exec_prefix))
403 )
404
405# Non-sticky options only apply to the current build.
406nonsticky_opts = Options(args=ARGUMENTS)
407nonsticky_opts.AddOptions(
408 BoolOption('update_ref', 'Update test reference outputs', False)
409 )
410
411# These options get exported to #defines in config/*.hh (see src/SConscript).
412env.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \
413 'USE_MYSQL', 'NO_FAST_ALLOC', 'SS_COMPATIBLE_FP', \
414 'USE_CHECKER', 'PYTHONHOME', 'TARGET_ISA']
415
416# Define a handy 'no-op' action
417def no_action(target, source, env):
418 return 0
419
420env.NoAction = Action(no_action, None)
421
422###################################################
423#
424# Define a SCons builder for configuration flag headers.
425#
426###################################################
427
428# This function generates a config header file that #defines the
429# option symbol to the current option setting (0 or 1). The source
430# operands are the name of the option and a Value node containing the
431# value of the option.
432def build_config_file(target, source, env):
433 (option, value) = [s.get_contents() for s in source]
434 f = file(str(target[0]), 'w')
435 print >> f, '#define', option, value
436 f.close()
437 return None
438
439# Generate the message to be printed when building the config file.
440def build_config_file_string(target, source, env):
441 (option, value) = [s.get_contents() for s in source]
442 return "Defining %s as %s in %s." % (option, value, target[0])
443
444# Combine the two functions into a scons Action object.
445config_action = Action(build_config_file, build_config_file_string)
446
447# The emitter munges the source & target node lists to reflect what
448# we're really doing.
449def config_emitter(target, source, env):
450 # extract option name from Builder arg
451 option = str(target[0])
452 # True target is config header file
453 target = joinpath('config', option.lower() + '.hh')
454 val = env[option]
455 if isinstance(val, bool):
456 # Force value to 0/1
457 val = int(val)
458 elif isinstance(val, str):
459 val = '"' + val + '"'
460
461 # Sources are option name & value (packaged in SCons Value nodes)
462 return ([target], [Value(option), Value(val)])
463
464config_builder = Builder(emitter = config_emitter, action = config_action)
465
466env.Append(BUILDERS = { 'ConfigFile' : config_builder })
467
468###################################################
469#
470# Define a SCons builder for copying files. This is used by the
471# Python zipfile code in src/python/SConscript, but is placed up here
472# since it's potentially more generally applicable.
473#
474###################################################
475
476copy_builder = Builder(action = Copy("$TARGET", "$SOURCE"))
477
478env.Append(BUILDERS = { 'CopyFile' : copy_builder })
479
480###################################################
481#
482# Define a simple SCons builder to concatenate files.
483#
484# Used to append the Python zip archive to the executable.
485#
486###################################################
487
488concat_builder = Builder(action = Action(['cat $SOURCES > $TARGET',
489 'chmod +x $TARGET']))
490
491env.Append(BUILDERS = { 'Concat' : concat_builder })
492
493
494# base help text
495help_text = '''
496Usage: scons [scons options] [build options] [target(s)]
497
498'''
499
500# libelf build is shared across all configs in the build root.
501env.SConscript('ext/libelf/SConscript',
502 build_dir = joinpath(build_root, 'libelf'),
503 exports = 'env')
504
505###################################################
506#
507# This function is used to set up a directory with switching headers
508#
509###################################################
510
511def make_switching_dir(dirname, switch_headers, env):
512 # Generate the header. target[0] is the full path of the output
513 # header to generate. 'source' is a dummy variable, since we get the
514 # list of ISAs from env['ALL_ISA_LIST'].
515 def gen_switch_hdr(target, source, env):
516 fname = str(target[0])
517 basename = os.path.basename(fname)
518 f = open(fname, 'w')
519 f.write('#include "arch/isa_specific.hh"\n')
520 cond = '#if'
521 for isa in env['ALL_ISA_LIST']:
522 f.write('%s THE_ISA == %s_ISA\n#include "%s/%s/%s"\n'
523 % (cond, isa.upper(), dirname, isa, basename))
524 cond = '#elif'
525 f.write('#else\n#error "THE_ISA not set"\n#endif\n')
526 f.close()
527 return 0
528
529 # String to print when generating header
530 def gen_switch_hdr_string(target, source, env):
531 return "Generating switch header " + str(target[0])
532
533 # Build SCons Action object. 'varlist' specifies env vars that this
534 # action depends on; when env['ALL_ISA_LIST'] changes these actions
535 # should get re-executed.
536 switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string,
537 varlist=['ALL_ISA_LIST'])
538
539 # Instantiate actions for each header
540 for hdr in switch_headers:
541 env.Command(hdr, [], switch_hdr_action)
542
543env.make_switching_dir = make_switching_dir
544
545###################################################
546#
547# Define build environments for selected configurations.
548#
549###################################################
550
551# rename base env
552base_env = env
553
554for build_path in build_paths:
555 print "Building in", build_path
556 # build_dir is the tail component of build path, and is used to
557 # determine the build parameters (e.g., 'ALPHA_SE')
558 (build_root, build_dir) = os.path.split(build_path)
559 # Make a copy of the build-root environment to use for this config.
560 env = base_env.Copy()
561
562 # Set env options according to the build directory config.
563 sticky_opts.files = []
564 # Options for $BUILD_ROOT/$BUILD_DIR are stored in
565 # $BUILD_ROOT/options/$BUILD_DIR so you can nuke
566 # $BUILD_ROOT/$BUILD_DIR without losing your options settings.
567 current_opts_file = joinpath(build_root, 'options', build_dir)
568 if os.path.isfile(current_opts_file):
569 sticky_opts.files.append(current_opts_file)
570 print "Using saved options file %s" % current_opts_file
571 else:
572 # Build dir-specific options file doesn't exist.
573
574 # Make sure the directory is there so we can create it later
575 opt_dir = os.path.dirname(current_opts_file)
576 if not os.path.isdir(opt_dir):
577 os.mkdir(opt_dir)
578
579 # Get default build options from source tree. Options are
580 # normally determined by name of $BUILD_DIR, but can be
581 # overriden by 'default=' arg on command line.
582 default_opts_file = joinpath('build_opts',
583 ARGUMENTS.get('default', build_dir))
584 if os.path.isfile(default_opts_file):
585 sticky_opts.files.append(default_opts_file)
586 print "Options file %s not found,\n using defaults in %s" \
587 % (current_opts_file, default_opts_file)
588 else:
589 print "Error: cannot find options file %s or %s" \
590 % (current_opts_file, default_opts_file)
591 Exit(1)
592
593 # Apply current option settings to env
594 sticky_opts.Update(env)
595 nonsticky_opts.Update(env)
596
597 help_text += "Sticky options for %s:\n" % build_dir \
598 + sticky_opts.GenerateHelpText(env) \
599 + "\nNon-sticky options for %s:\n" % build_dir \
600 + nonsticky_opts.GenerateHelpText(env)
601
602 # Process option settings.
603
604 if not have_fenv and env['USE_FENV']:
605 print "Warning: <fenv.h> not available; " \
606 "forcing USE_FENV to False in", build_dir + "."
607 env['USE_FENV'] = False
608
609 if not env['USE_FENV']:
610 print "Warning: No IEEE FP rounding mode control in", build_dir + "."
611 print " FP results may deviate slightly from other platforms."
612
613 if env['EFENCE']:
614 env.Append(LIBS=['efence'])
615
616 if env['USE_MYSQL']:
617 if not have_mysql:
618 print "Warning: MySQL not available; " \
619 "forcing USE_MYSQL to False in", build_dir + "."
620 env['USE_MYSQL'] = False
621 else:
622 print "Compiling in", build_dir, "with MySQL support."
623 env.ParseConfig(mysql_config_libs)
624 env.ParseConfig(mysql_config_include)
625
626 # Save sticky option settings back to current options file
627 sticky_opts.Save(current_opts_file, env)
628
629 # Do this after we save setting back, or else we'll tack on an
630 # extra 'qdo' every time we run scons.
631 if env['BATCH']:
632 env['CC'] = env['BATCH_CMD'] + ' ' + env['CC']
633 env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX']
634
635 if env['USE_SSE2']:
636 env.Append(CCFLAGS='-msse2')
637
638 # The src/SConscript file sets up the build rules in 'env' according
639 # to the configured options. It returns a list of environments,
640 # one for each variant build (debug, opt, etc.)
641 envList = SConscript('src/SConscript', build_dir = build_path,
642 exports = 'env')
643
644 # Set up the regression tests for each build.
645 for e in envList:
646 SConscript('tests/SConscript',
647 build_dir = joinpath(build_path, 'tests', e.Label),
648 exports = { 'env' : e }, duplicate = False)
649
650Help(help_text)
651
652
653###################################################
654#
655# Let SCons do its thing. At this point SCons will use the defined
656# build environments to build the requested targets.
657#
658###################################################
659
| 244 Exit(1)
245
246if sys.platform == 'cygwin':
247 # cygwin has some header file issues...
248 env.Append(CCFLAGS=Split("-Wno-uninitialized"))
249env.Append(CPPPATH=[Dir('ext/dnet')])
250
251# Check for SWIG
252if not env.has_key('SWIG'):
253 print 'Error: SWIG utility not found.'
254 print ' Please install (see http://www.swig.org) and retry.'
255 Exit(1)
256
257# Check for appropriate SWIG version
258swig_version = os.popen('swig -version').read().split()
259# First 3 words should be "SWIG Version x.y.z"
260if swig_version[0] != 'SWIG' or swig_version[1] != 'Version':
261 print 'Error determining SWIG version.'
262 Exit(1)
263
264min_swig_version = '1.3.28'
265if compare_versions(swig_version[2], min_swig_version) < 0:
266 print 'Error: SWIG version', min_swig_version, 'or newer required.'
267 print ' Installed version:', swig_version[2]
268 Exit(1)
269
270# Set up SWIG flags & scanner
271env.Append(SWIGFLAGS=Split('-c++ -python -modern $_CPPINCFLAGS'))
272
273import SCons.Scanner
274
275swig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
276
277swig_scanner = SCons.Scanner.ClassicCPP("SwigScan", ".i", "CPPPATH",
278 swig_inc_re)
279
280env.Append(SCANNERS = swig_scanner)
281
282# Platform-specific configuration. Note again that we assume that all
283# builds under a given build root run on the same host platform.
284conf = Configure(env,
285 conf_dir = joinpath(build_root, '.scons_config'),
286 log_file = joinpath(build_root, 'scons_config.log'))
287
288# Find Python include and library directories for embedding the
289# interpreter. For consistency, we will use the same Python
290# installation used to run scons (and thus this script). If you want
291# to link in an alternate version, see above for instructions on how
292# to invoke scons with a different copy of the Python interpreter.
293
294# Get brief Python version name (e.g., "python2.4") for locating
295# include & library files
296py_version_name = 'python' + sys.version[:3]
297
298# include path, e.g. /usr/local/include/python2.4
299py_header_path = joinpath(sys.exec_prefix, 'include', py_version_name)
300env.Append(CPPPATH = py_header_path)
301# verify that it works
302if not conf.CheckHeader('Python.h', '<>'):
303 print "Error: can't find Python.h header in", py_header_path
304 Exit(1)
305
306# add library path too if it's not in the default place
307py_lib_path = None
308if sys.exec_prefix != '/usr':
309 py_lib_path = joinpath(sys.exec_prefix, 'lib')
310elif sys.platform == 'cygwin':
311 # cygwin puts the .dll in /bin for some reason
312 py_lib_path = '/bin'
313if py_lib_path:
314 env.Append(LIBPATH = py_lib_path)
315 print 'Adding', py_lib_path, 'to LIBPATH for', py_version_name
316if not conf.CheckLib(py_version_name):
317 print "Error: can't find Python library", py_version_name
318 Exit(1)
319
320# On Solaris you need to use libsocket for socket ops
321if not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'):
322 if not conf.CheckLibWithHeader('socket', 'sys/socket.h', 'C++', 'accept(0,0,0);'):
323 print "Can't find library with socket calls (e.g. accept())"
324 Exit(1)
325
326# Check for zlib. If the check passes, libz will be automatically
327# added to the LIBS environment variable.
328if not conf.CheckLibWithHeader('z', 'zlib.h', 'C++','zlibVersion();'):
329 print 'Error: did not find needed zlib compression library '\
330 'and/or zlib.h header file.'
331 print ' Please install zlib and try again.'
332 Exit(1)
333
334# Check for <fenv.h> (C99 FP environment control)
335have_fenv = conf.CheckHeader('fenv.h', '<>')
336if not have_fenv:
337 print "Warning: Header file <fenv.h> not found."
338 print " This host has no IEEE FP rounding mode control."
339
340# Check for mysql.
341mysql_config = WhereIs('mysql_config')
342have_mysql = mysql_config != None
343
344# Check MySQL version.
345if have_mysql:
346 mysql_version = os.popen(mysql_config + ' --version').read()
347 min_mysql_version = '4.1'
348 if compare_versions(mysql_version, min_mysql_version) < 0:
349 print 'Warning: MySQL', min_mysql_version, 'or newer required.'
350 print ' Version', mysql_version, 'detected.'
351 have_mysql = False
352
353# Set up mysql_config commands.
354if have_mysql:
355 mysql_config_include = mysql_config + ' --include'
356 if os.system(mysql_config_include + ' > /dev/null') != 0:
357 # older mysql_config versions don't support --include, use
358 # --cflags instead
359 mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
360 # This seems to work in all versions
361 mysql_config_libs = mysql_config + ' --libs'
362
363env = conf.Finish()
364
365# Define the universe of supported ISAs
366env['ALL_ISA_LIST'] = ['alpha', 'sparc', 'mips']
367
368# Define the universe of supported CPU models
369env['ALL_CPU_LIST'] = ['AtomicSimpleCPU', 'TimingSimpleCPU',
370 'O3CPU', 'OzoneCPU']
371
372if os.path.isdir(joinpath(SRCDIR, 'encumbered/cpu/full')):
373 env['ALL_CPU_LIST'] += ['FullCPU']
374
375# Sticky options get saved in the options file so they persist from
376# one invocation to the next (unless overridden, in which case the new
377# value becomes sticky).
378sticky_opts = Options(args=ARGUMENTS)
379sticky_opts.AddOptions(
380 EnumOption('TARGET_ISA', 'Target ISA', 'alpha', env['ALL_ISA_LIST']),
381 BoolOption('FULL_SYSTEM', 'Full-system support', False),
382 # There's a bug in scons 0.96.1 that causes ListOptions with list
383 # values (more than one value) not to be able to be restored from
384 # a saved option file. If this causes trouble then upgrade to
385 # scons 0.96.90 or later.
386 ListOption('CPU_MODELS', 'CPU models', 'AtomicSimpleCPU,TimingSimpleCPU,O3CPU',
387 env['ALL_CPU_LIST']),
388 BoolOption('ALPHA_TLASER',
389 'Model Alpha TurboLaser platform (vs. Tsunami)', False),
390 BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False),
391 BoolOption('EFENCE', 'Link with Electric Fence malloc debugger',
392 False),
393 BoolOption('SS_COMPATIBLE_FP',
394 'Make floating-point results compatible with SimpleScalar',
395 False),
396 BoolOption('USE_SSE2',
397 'Compile for SSE2 (-msse2) to get IEEE FP on x86 hosts',
398 False),
399 BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql),
400 BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv),
401 BoolOption('USE_CHECKER', 'Use checker for detailed CPU models', False),
402 ('CC', 'C compiler', os.environ.get('CC', env['CC'])),
403 ('CXX', 'C++ compiler', os.environ.get('CXX', env['CXX'])),
404 BoolOption('BATCH', 'Use batch pool for build and tests', False),
405 ('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
406 ('PYTHONHOME',
407 'Override the default PYTHONHOME for this system (use with caution)',
408 '%s:%s' % (sys.prefix, sys.exec_prefix))
409 )
410
411# Non-sticky options only apply to the current build.
412nonsticky_opts = Options(args=ARGUMENTS)
413nonsticky_opts.AddOptions(
414 BoolOption('update_ref', 'Update test reference outputs', False)
415 )
416
417# These options get exported to #defines in config/*.hh (see src/SConscript).
418env.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \
419 'USE_MYSQL', 'NO_FAST_ALLOC', 'SS_COMPATIBLE_FP', \
420 'USE_CHECKER', 'PYTHONHOME', 'TARGET_ISA']
421
422# Define a handy 'no-op' action
423def no_action(target, source, env):
424 return 0
425
426env.NoAction = Action(no_action, None)
427
428###################################################
429#
430# Define a SCons builder for configuration flag headers.
431#
432###################################################
433
434# This function generates a config header file that #defines the
435# option symbol to the current option setting (0 or 1). The source
436# operands are the name of the option and a Value node containing the
437# value of the option.
438def build_config_file(target, source, env):
439 (option, value) = [s.get_contents() for s in source]
440 f = file(str(target[0]), 'w')
441 print >> f, '#define', option, value
442 f.close()
443 return None
444
445# Generate the message to be printed when building the config file.
446def build_config_file_string(target, source, env):
447 (option, value) = [s.get_contents() for s in source]
448 return "Defining %s as %s in %s." % (option, value, target[0])
449
450# Combine the two functions into a scons Action object.
451config_action = Action(build_config_file, build_config_file_string)
452
453# The emitter munges the source & target node lists to reflect what
454# we're really doing.
455def config_emitter(target, source, env):
456 # extract option name from Builder arg
457 option = str(target[0])
458 # True target is config header file
459 target = joinpath('config', option.lower() + '.hh')
460 val = env[option]
461 if isinstance(val, bool):
462 # Force value to 0/1
463 val = int(val)
464 elif isinstance(val, str):
465 val = '"' + val + '"'
466
467 # Sources are option name & value (packaged in SCons Value nodes)
468 return ([target], [Value(option), Value(val)])
469
470config_builder = Builder(emitter = config_emitter, action = config_action)
471
472env.Append(BUILDERS = { 'ConfigFile' : config_builder })
473
474###################################################
475#
476# Define a SCons builder for copying files. This is used by the
477# Python zipfile code in src/python/SConscript, but is placed up here
478# since it's potentially more generally applicable.
479#
480###################################################
481
482copy_builder = Builder(action = Copy("$TARGET", "$SOURCE"))
483
484env.Append(BUILDERS = { 'CopyFile' : copy_builder })
485
486###################################################
487#
488# Define a simple SCons builder to concatenate files.
489#
490# Used to append the Python zip archive to the executable.
491#
492###################################################
493
494concat_builder = Builder(action = Action(['cat $SOURCES > $TARGET',
495 'chmod +x $TARGET']))
496
497env.Append(BUILDERS = { 'Concat' : concat_builder })
498
499
500# base help text
501help_text = '''
502Usage: scons [scons options] [build options] [target(s)]
503
504'''
505
506# libelf build is shared across all configs in the build root.
507env.SConscript('ext/libelf/SConscript',
508 build_dir = joinpath(build_root, 'libelf'),
509 exports = 'env')
510
511###################################################
512#
513# This function is used to set up a directory with switching headers
514#
515###################################################
516
517def make_switching_dir(dirname, switch_headers, env):
518 # Generate the header. target[0] is the full path of the output
519 # header to generate. 'source' is a dummy variable, since we get the
520 # list of ISAs from env['ALL_ISA_LIST'].
521 def gen_switch_hdr(target, source, env):
522 fname = str(target[0])
523 basename = os.path.basename(fname)
524 f = open(fname, 'w')
525 f.write('#include "arch/isa_specific.hh"\n')
526 cond = '#if'
527 for isa in env['ALL_ISA_LIST']:
528 f.write('%s THE_ISA == %s_ISA\n#include "%s/%s/%s"\n'
529 % (cond, isa.upper(), dirname, isa, basename))
530 cond = '#elif'
531 f.write('#else\n#error "THE_ISA not set"\n#endif\n')
532 f.close()
533 return 0
534
535 # String to print when generating header
536 def gen_switch_hdr_string(target, source, env):
537 return "Generating switch header " + str(target[0])
538
539 # Build SCons Action object. 'varlist' specifies env vars that this
540 # action depends on; when env['ALL_ISA_LIST'] changes these actions
541 # should get re-executed.
542 switch_hdr_action = Action(gen_switch_hdr, gen_switch_hdr_string,
543 varlist=['ALL_ISA_LIST'])
544
545 # Instantiate actions for each header
546 for hdr in switch_headers:
547 env.Command(hdr, [], switch_hdr_action)
548
549env.make_switching_dir = make_switching_dir
550
551###################################################
552#
553# Define build environments for selected configurations.
554#
555###################################################
556
557# rename base env
558base_env = env
559
560for build_path in build_paths:
561 print "Building in", build_path
562 # build_dir is the tail component of build path, and is used to
563 # determine the build parameters (e.g., 'ALPHA_SE')
564 (build_root, build_dir) = os.path.split(build_path)
565 # Make a copy of the build-root environment to use for this config.
566 env = base_env.Copy()
567
568 # Set env options according to the build directory config.
569 sticky_opts.files = []
570 # Options for $BUILD_ROOT/$BUILD_DIR are stored in
571 # $BUILD_ROOT/options/$BUILD_DIR so you can nuke
572 # $BUILD_ROOT/$BUILD_DIR without losing your options settings.
573 current_opts_file = joinpath(build_root, 'options', build_dir)
574 if os.path.isfile(current_opts_file):
575 sticky_opts.files.append(current_opts_file)
576 print "Using saved options file %s" % current_opts_file
577 else:
578 # Build dir-specific options file doesn't exist.
579
580 # Make sure the directory is there so we can create it later
581 opt_dir = os.path.dirname(current_opts_file)
582 if not os.path.isdir(opt_dir):
583 os.mkdir(opt_dir)
584
585 # Get default build options from source tree. Options are
586 # normally determined by name of $BUILD_DIR, but can be
587 # overriden by 'default=' arg on command line.
588 default_opts_file = joinpath('build_opts',
589 ARGUMENTS.get('default', build_dir))
590 if os.path.isfile(default_opts_file):
591 sticky_opts.files.append(default_opts_file)
592 print "Options file %s not found,\n using defaults in %s" \
593 % (current_opts_file, default_opts_file)
594 else:
595 print "Error: cannot find options file %s or %s" \
596 % (current_opts_file, default_opts_file)
597 Exit(1)
598
599 # Apply current option settings to env
600 sticky_opts.Update(env)
601 nonsticky_opts.Update(env)
602
603 help_text += "Sticky options for %s:\n" % build_dir \
604 + sticky_opts.GenerateHelpText(env) \
605 + "\nNon-sticky options for %s:\n" % build_dir \
606 + nonsticky_opts.GenerateHelpText(env)
607
608 # Process option settings.
609
610 if not have_fenv and env['USE_FENV']:
611 print "Warning: <fenv.h> not available; " \
612 "forcing USE_FENV to False in", build_dir + "."
613 env['USE_FENV'] = False
614
615 if not env['USE_FENV']:
616 print "Warning: No IEEE FP rounding mode control in", build_dir + "."
617 print " FP results may deviate slightly from other platforms."
618
619 if env['EFENCE']:
620 env.Append(LIBS=['efence'])
621
622 if env['USE_MYSQL']:
623 if not have_mysql:
624 print "Warning: MySQL not available; " \
625 "forcing USE_MYSQL to False in", build_dir + "."
626 env['USE_MYSQL'] = False
627 else:
628 print "Compiling in", build_dir, "with MySQL support."
629 env.ParseConfig(mysql_config_libs)
630 env.ParseConfig(mysql_config_include)
631
632 # Save sticky option settings back to current options file
633 sticky_opts.Save(current_opts_file, env)
634
635 # Do this after we save setting back, or else we'll tack on an
636 # extra 'qdo' every time we run scons.
637 if env['BATCH']:
638 env['CC'] = env['BATCH_CMD'] + ' ' + env['CC']
639 env['CXX'] = env['BATCH_CMD'] + ' ' + env['CXX']
640
641 if env['USE_SSE2']:
642 env.Append(CCFLAGS='-msse2')
643
644 # The src/SConscript file sets up the build rules in 'env' according
645 # to the configured options. It returns a list of environments,
646 # one for each variant build (debug, opt, etc.)
647 envList = SConscript('src/SConscript', build_dir = build_path,
648 exports = 'env')
649
650 # Set up the regression tests for each build.
651 for e in envList:
652 SConscript('tests/SConscript',
653 build_dir = joinpath(build_path, 'tests', e.Label),
654 exports = { 'env' : e }, duplicate = False)
655
656Help(help_text)
657
658
659###################################################
660#
661# Let SCons do its thing. At this point SCons will use the defined
662# build environments to build the requested targets.
663#
664###################################################
665
|