1# -*- mode:python -*-
2
3# Copyright (c) 2009 The Hewlett-Packard Development Company
4# Copyright (c) 2004-2005 The Regents of The University of Michigan
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions are
--- 144 unchanged lines hidden (view full) ---
153 if n1 > n2: return 1
154 # all corresponding values are equal... see if one has extra values
155 if len(v1) < len(v2): return -1
156 if len(v1) > len(v2): return 1
157 return 0
158
159########################################################################
160#
161# Set up the main build environment.
162#
163########################################################################
164use_vars = set([ 'AS', 'AR', 'CC', 'CXX', 'HOME', 'LD_LIBRARY_PATH', 'PATH',
165 'RANLIB' ])
166
167use_env = {}
168for key,val in os.environ.iteritems():
169 if key in use_vars or key.startswith("M5"):
170 use_env[key] = val
171
172main = Environment(ENV=use_env)
173main.root = Dir(".") # The current directory (where this file lives).
174main.srcdir = Dir("src") # The source directory
175
176########################################################################
177#
178# Mercurial Stuff.
179#
180# If the M5 directory is a mercurial repository, we should do some
181# extra things.
182#
183########################################################################
184
185hgdir = main.root.Dir(".hg")
186
187mercurial_style_message = """
188You're missing the M5 style hook.
189Please install the hook so we can ensure that all code fits a common style.
190
191All you'd need to do is add the following lines to your repository .hg/hgrc
192or your personal .hgrc
193----------------
194
195[extensions]
196style = %s/util/style.py
197
198[hooks]
199pretxncommit.style = python:style.check_whitespace
200""" % (main.root)
201
202mercurial_bin_not_found = """
203Mercurial binary cannot be found, unfortunately this means that we
204cannot easily determine the version of M5 that you are running and
205this makes error messages more difficult to collect. Please consider
206installing mercurial if you choose to post an error message
207"""
208
209mercurial_lib_not_found = """
210Mercurial libraries cannot be found, ignoring style hook
211If you are actually a M5 developer, please fix this and
212run the style hook. It is important.
213"""
214
215hg_info = "Unknown"
216if hgdir.exists():
217 # 1) Grab repository revision if we know it.
218 cmd = "hg id -n -i -t -b"
219 try:
220 hg_info = read_command(cmd, cwd=main.root.abspath).strip()
221 except OSError:
222 print mercurial_bin_not_found
223
224 # 2) Ensure that the style hook is in place.
225 try:
226 ui = None
227 if ARGUMENTS.get('IGNORE_STYLE') != 'True':
228 from mercurial import ui
--- 5 unchanged lines hidden (view full) ---
234 ui.readconfig(hgdir.File('hgrc').abspath)
235 style_hook = ui.config('hooks', 'pretxncommit.style', None)
236
237 if not style_hook:
238 print mercurial_style_message
239 sys.exit(1)
240else:
241 print ".hg directory not found"
242
243main['HG_INFO'] = hg_info
244
245###################################################
246#
247# Figure out which configurations to set up based on the path(s) of
248# the target(s).
249#
250###################################################
251
252# Find default configuration & binary.
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269if COMMAND_LINE_TARGETS:
270 # Ask SCons which directory it was invoked from
271 launch_dir = GetLaunchDir()
272 # Make targets relative to invocation directory
273 abs_targets = [ normpath(joinpath(launch_dir, str(x))) for x in \
274 COMMAND_LINE_TARGETS]
275else:
276 # Default targets are relative to root of tree
277 abs_targets = [ normpath(joinpath(main.root.abspath, str(x))) for x in \
278 DEFAULT_TARGETS]
279
280
281# Generate a list of the unique build roots and configs that the
282# collected targets reference.
283variant_paths = []
284build_root = None
285for t in abs_targets:
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300 variant_path = joinpath('/',*path_dirs[:build_top+2])
301 if variant_path not in variant_paths:
302 variant_paths.append(variant_path)
303
304# Make sure build_root exists (might not if this is the first build there)
305if not isdir(build_root):
306 mkdir(build_root)
307
308Export('main')
309
310main.SConsignFile(joinpath(build_root, "sconsign"))
311
312# Default duplicate option is to use hard links, but this messes up
313# when you use emacs to edit a file in the target dir, as emacs moves
314# file to file~ then copies to file, breaking the link. Symbolic
315# (soft) links work better.
316main.SetOption('duplicate', 'soft-copy')
317
318#
319# Set up global sticky variables... these are common to an entire build
320# tree (not specific to a particular build like ALPHA_SE)
321#
322
323# Variable validators & converters for global sticky variables
324def PathListMakeAbsolute(val):
--- 10 unchanged lines hidden (view full) ---
335 if not isdir(path):
336 raise SCons.Errors.UserError("Path does not exist: '%s'" % path)
337
338global_sticky_vars_file = joinpath(build_root, 'variables.global')
339
340global_sticky_vars = Variables(global_sticky_vars_file, args=ARGUMENTS)
341
342global_sticky_vars.AddVariables(
343 ('CC', 'C compiler', environ.get('CC', main['CC'])),
344 ('CXX', 'C++ compiler', environ.get('CXX', main['CXX'])),
345 ('BATCH', 'Use batch pool for build and tests', False),
346 ('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
347 ('EXTRAS', 'Add Extra directories to the compilation', '',
348 PathListAllExist, PathListMakeAbsolute)
349 )
350
351# base help text
352help_text = '''
353Usage: scons [scons options] [build options] [target(s)]
354
355Global sticky options:
356'''
357
358help_text += global_sticky_vars.GenerateHelpText(main)
359
360# Update main environment with values from ARGUMENTS & global_sticky_vars_file
361global_sticky_vars.Update(main)
362
363# Save sticky variable settings back to current variables file
364global_sticky_vars.Save(global_sticky_vars_file, main)
365
366# Parse EXTRAS variable to build list of all directories where we're
367# look for sources etc. This list is exported as base_dir_list.
368base_dir = main.srcdir.abspath
369if main['EXTRAS']:
370 extras_dir_list = main['EXTRAS'].split(':')
371else:
372 extras_dir_list = []
373
374Export('base_dir')
375Export('extras_dir_list')
376
377# the ext directory should be on the #includes path
378main.Append(CPPPATH=[Dir('ext')])
379
380# M5_PLY is used by isa_parser.py to find the PLY package.
381main.Append(ENV = { 'M5_PLY' : Dir('ext/ply').abspath })
382
383CXX_version = read_command([main['CXX'],'--version'], exception=False)
384CXX_V = read_command([main['CXX'],'-V'], exception=False)
385
386main['GCC'] = CXX_version and CXX_version.find('g++') >= 0
387main['SUNCC'] = CXX_V and CXX_V.find('Sun C++') >= 0
388main['ICC'] = CXX_V and CXX_V.find('Intel') >= 0
389if main['GCC'] + main['SUNCC'] + main['ICC'] > 1:
390 print 'Error: How can we have two at the same time?'
391 Exit(1)
392
393# Set up default C++ compiler flags
394if main['GCC']:
395 main.Append(CCFLAGS='-pipe')
396 main.Append(CCFLAGS='-fno-strict-aliasing')
397 main.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef'))
398 main.Append(CXXFLAGS='-Wno-deprecated')
399elif main['ICC']:
400 pass #Fix me... add warning flags once we clean up icc warnings
401elif main['SUNCC']:
402 main.Append(CCFLAGS='-Qoption ccfe')
403 main.Append(CCFLAGS='-features=gcc')
404 main.Append(CCFLAGS='-features=extensions')
405 main.Append(CCFLAGS='-library=stlport4')
406 main.Append(CCFLAGS='-xar')
407 #main.Append(CCFLAGS='-instances=semiexplicit')
408else:
409 print 'Error: Don\'t know what compiler options to use for your compiler.'
410 print ' Please fix SConstruct and src/SConscript and try again.'
411 Exit(1)
412
413# Do this after we save setting back, or else we'll tack on an
414# extra 'qdo' every time we run scons.
415if main['BATCH']:
416 main['CC'] = main['BATCH_CMD'] + ' ' + main['CC']
417 main['CXX'] = main['BATCH_CMD'] + ' ' + main['CXX']
418 main['AS'] = main['BATCH_CMD'] + ' ' + main['AS']
419 main['AR'] = main['BATCH_CMD'] + ' ' + main['AR']
420 main['RANLIB'] = main['BATCH_CMD'] + ' ' + main['RANLIB']
421
422if sys.platform == 'cygwin':
423 # cygwin has some header file issues...
424 main.Append(CCFLAGS=Split("-Wno-uninitialized"))
425
426# Check for SWIG
427if not main.has_key('SWIG'):
428 print 'Error: SWIG utility not found.'
429 print ' Please install (see http://www.swig.org) and retry.'
430 Exit(1)
431
432# Check for appropriate SWIG version
433swig_version = read_command(('swig', '-version'), exception='').split()
434# First 3 words should be "SWIG Version x.y.z"
435if len(swig_version) < 3 or \
--- 4 unchanged lines hidden (view full) ---
440min_swig_version = '1.3.28'
441if compare_versions(swig_version[2], min_swig_version) < 0:
442 print 'Error: SWIG version', min_swig_version, 'or newer required.'
443 print ' Installed version:', swig_version[2]
444 Exit(1)
445
446# Set up SWIG flags & scanner
447swig_flags=Split('-c++ -python -modern -templatereduce $_CPPINCFLAGS')
448main.Append(SWIGFLAGS=swig_flags)
449
450# filter out all existing swig scanners, they mess up the dependency
451# stuff for some reason
452scanners = []
453for scanner in main['SCANNERS']:
454 skeys = scanner.skeys
455 if skeys == '.i':
456 continue
457
458 if isinstance(skeys, (list, tuple)) and '.i' in skeys:
459 continue
460
461 scanners.append(scanner)
462
463# add the new swig scanner that we like better
464from SCons.Scanner import ClassicCPP as CPPScanner
465swig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
466scanners.append(CPPScanner("SwigScan", [ ".i" ], "CPPPATH", swig_inc_re))
467
468# replace the scanners list that has what we want
469main['SCANNERS'] = scanners
470
471# Add a custom Check function to the Configure context so that we can
472# figure out if the compiler adds leading underscores to global
473# variables. This is needed for the autogenerated asm files that we
474# use for embedding the python code.
475def CheckLeading(context):
476 context.Message("Checking for leading underscore in global variables...")
477 # 1) Define a global variable called x from asm so the C compiler
--- 13 unchanged lines hidden (view full) ---
491 int main() { return x; }
492 ''', extension=".c")
493 context.env.Append(LEADING_UNDERSCORE=ret)
494 context.Result(ret)
495 return ret
496
497# Platform-specific configuration. Note again that we assume that all
498# builds under a given build root run on the same host platform.
499conf = Configure(main,
500 conf_dir = joinpath(build_root, '.scons_config'),
501 log_file = joinpath(build_root, 'scons_config.log'),
502 custom_tests = { 'CheckLeading' : CheckLeading })
503
504# Check for leading underscores. Don't really need to worry either
505# way so don't need to check the return code.
506conf.CheckLeading()
507
508# Check if we should compile a 64 bit binary on Mac OS X/Darwin
509try:
510 import platform
511 uname = platform.uname()
512 if uname[0] == 'Darwin' and compare_versions(uname[2], '9.0.0') >= 0:
513 if int(read_command('sysctl -n hw.cpu64bit_capable')[0]):
514 main.Append(CCFLAGS='-arch x86_64')
515 main.Append(CFLAGS='-arch x86_64')
516 main.Append(LINKFLAGS='-arch x86_64')
517 main.Append(ASFLAGS='-arch x86_64')
518except:
519 pass
520
521# Recent versions of scons substitute a "Null" object for Configure()
522# when configuration isn't necessary, e.g., if the "--help" option is
523# present. Unfortuantely this Null object always returns false,
524# breaking all our configuration checks. We replace it with our own
525# more optimistic null object that returns True instead.
--- 4 unchanged lines hidden (view full) ---
530 class NullConf:
531 def __init__(self, env):
532 self.env = env
533 def Finish(self):
534 return self.env
535 def __getattr__(self, mname):
536 return NullCheck
537
538 conf = NullConf(main)
539
540# Find Python include and library directories for embedding the
541# interpreter. For consistency, we will use the same Python
542# installation used to run scons (and thus this script). If you want
543# to link in an alternate version, see above for instructions on how
544# to invoke scons with a different copy of the Python interpreter.
545from distutils import sysconfig
546
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563py_libs = []
564for lib in py_getvar('LIBS').split() + py_getvar('SYSLIBS').split():
565 assert lib.startswith('-l')
566 lib = lib[2:]
567 if lib not in py_libs:
568 py_libs.append(lib)
569py_libs.append(py_version)
570
571main.Append(CPPPATH=py_includes)
572main.Append(LIBPATH=py_lib_path)
573
574# verify that this stuff works
575if not conf.CheckHeader('Python.h', '<>'):
576 print "Error: can't find Python.h header in", py_includes
577 Exit(1)
578
579for lib in py_libs:
580 if not conf.CheckLib(lib):
--- 45 unchanged lines hidden (view full) ---
626 mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
627 # This seems to work in all versions
628 mysql_config_libs = mysql_config + ' --libs'
629
630######################################################################
631#
632# Finish the configuration
633#
634main = conf.Finish()
635
636######################################################################
637#
638# Collect all non-global variables
639#
640
641# Define the universe of supported ISAs
642all_isa_list = [ ]
643Export('all_isa_list')
644
645# Define the universe of supported CPU models
646all_cpu_list = [ ]
647default_cpus = [ ]
648Export('all_cpu_list', 'default_cpus')
--- 95 unchanged lines hidden (view full) ---
744 elif isinstance(val, str):
745 val = '"' + val + '"'
746
747 # Sources are variable name & value (packaged in SCons Value nodes)
748 return ([target], [Value(variable), Value(val)])
749
750config_builder = Builder(emitter = config_emitter, action = config_action)
751
752main.Append(BUILDERS = { 'ConfigFile' : config_builder })
753
754# libelf build is shared across all configs in the build root.
755main.SConscript('ext/libelf/SConscript',
756 variant_dir = joinpath(build_root, 'libelf'))
757
758# gzstream build is shared across all configs in the build root.
759main.SConscript('ext/gzstream/SConscript',
760 variant_dir = joinpath(build_root, 'gzstream'))
761
762###################################################
763#
764# This function is used to set up a directory with switching headers
765#
766###################################################
767
768main['ALL_ISA_LIST'] = all_isa_list
769def make_switching_dir(dname, switch_headers, env):
770 # Generate the header. target[0] is the full path of the output
771 # header to generate. 'source' is a dummy variable, since we get the
772 # list of ISAs from env['ALL_ISA_LIST'].
773 def gen_switch_hdr(target, source, env):
774 fname = str(target[0])
775 bname = basename(fname)
776 f = open(fname, 'w')
--- 23 unchanged lines hidden (view full) ---
800Export('make_switching_dir')
801
802###################################################
803#
804# Define build environments for selected configurations.
805#
806###################################################
807
808for variant_path in variant_paths:
809 print "Building in", variant_path
810
811 # Make a copy of the build-root environment to use for this config.
812 env = main.Clone()
813 env['BUILDDIR'] = variant_path
814
815 # variant_dir is the tail component of build path, and is used to
816 # determine the build parameters (e.g., 'ALPHA_SE')
817 (build_root, variant_dir) = splitpath(variant_path)
818
819 # Set env variables according to the build directory config.
820 sticky_vars.files = []
--- 81 unchanged lines hidden ---
2
3# Copyright (c) 2009 The Hewlett-Packard Development Company
4# Copyright (c) 2004-2005 The Regents of The University of Michigan
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions are
--- 144 unchanged lines hidden (view full) ---
153 if n1 > n2: return 1
154 # all corresponding values are equal... see if one has extra values
155 if len(v1) < len(v2): return -1
156 if len(v1) > len(v2): return 1
157 return 0
158
159########################################################################
160#
161# Set up the main build environment.
162#
163########################################################################
164use_vars = set([ 'AS', 'AR', 'CC', 'CXX', 'HOME', 'LD_LIBRARY_PATH', 'PATH',
165 'RANLIB' ])
166
167use_env = {}
168for key,val in os.environ.iteritems():
169 if key in use_vars or key.startswith("M5"):
170 use_env[key] = val
171
172main = Environment(ENV=use_env)
173main.root = Dir(".") # The current directory (where this file lives).
174main.srcdir = Dir("src") # The source directory
175
176########################################################################
177#
178# Mercurial Stuff.
179#
180# If the M5 directory is a mercurial repository, we should do some
181# extra things.
182#
183########################################################################
184
185hgdir = main.root.Dir(".hg")
186
187mercurial_style_message = """
188You're missing the M5 style hook.
189Please install the hook so we can ensure that all code fits a common style.
190
191All you'd need to do is add the following lines to your repository .hg/hgrc
192or your personal .hgrc
193----------------
194
195[extensions]
196style = %s/util/style.py
197
198[hooks]
199pretxncommit.style = python:style.check_whitespace
200""" % (main.root)
201
202mercurial_bin_not_found = """
203Mercurial binary cannot be found, unfortunately this means that we
204cannot easily determine the version of M5 that you are running and
205this makes error messages more difficult to collect. Please consider
206installing mercurial if you choose to post an error message
207"""
208
209mercurial_lib_not_found = """
210Mercurial libraries cannot be found, ignoring style hook
211If you are actually a M5 developer, please fix this and
212run the style hook. It is important.
213"""
214
215hg_info = "Unknown"
216if hgdir.exists():
217 # 1) Grab repository revision if we know it.
218 cmd = "hg id -n -i -t -b"
219 try:
220 hg_info = read_command(cmd, cwd=main.root.abspath).strip()
221 except OSError:
222 print mercurial_bin_not_found
223
224 # 2) Ensure that the style hook is in place.
225 try:
226 ui = None
227 if ARGUMENTS.get('IGNORE_STYLE') != 'True':
228 from mercurial import ui
--- 5 unchanged lines hidden (view full) ---
234 ui.readconfig(hgdir.File('hgrc').abspath)
235 style_hook = ui.config('hooks', 'pretxncommit.style', None)
236
237 if not style_hook:
238 print mercurial_style_message
239 sys.exit(1)
240else:
241 print ".hg directory not found"
242
243main['HG_INFO'] = hg_info
244
245###################################################
246#
247# Figure out which configurations to set up based on the path(s) of
248# the target(s).
249#
250###################################################
251
252# Find default configuration & binary.
--- 16 unchanged lines hidden (view full) ---
269if COMMAND_LINE_TARGETS:
270 # Ask SCons which directory it was invoked from
271 launch_dir = GetLaunchDir()
272 # Make targets relative to invocation directory
273 abs_targets = [ normpath(joinpath(launch_dir, str(x))) for x in \
274 COMMAND_LINE_TARGETS]
275else:
276 # Default targets are relative to root of tree
277 abs_targets = [ normpath(joinpath(main.root.abspath, str(x))) for x in \
278 DEFAULT_TARGETS]
279
280
281# Generate a list of the unique build roots and configs that the
282# collected targets reference.
283variant_paths = []
284build_root = None
285for t in abs_targets:
--- 14 unchanged lines hidden (view full) ---
300 variant_path = joinpath('/',*path_dirs[:build_top+2])
301 if variant_path not in variant_paths:
302 variant_paths.append(variant_path)
303
304# Make sure build_root exists (might not if this is the first build there)
305if not isdir(build_root):
306 mkdir(build_root)
307
308Export('main')
309
310main.SConsignFile(joinpath(build_root, "sconsign"))
311
312# Default duplicate option is to use hard links, but this messes up
313# when you use emacs to edit a file in the target dir, as emacs moves
314# file to file~ then copies to file, breaking the link. Symbolic
315# (soft) links work better.
316main.SetOption('duplicate', 'soft-copy')
317
318#
319# Set up global sticky variables... these are common to an entire build
320# tree (not specific to a particular build like ALPHA_SE)
321#
322
323# Variable validators & converters for global sticky variables
324def PathListMakeAbsolute(val):
--- 10 unchanged lines hidden (view full) ---
335 if not isdir(path):
336 raise SCons.Errors.UserError("Path does not exist: '%s'" % path)
337
338global_sticky_vars_file = joinpath(build_root, 'variables.global')
339
340global_sticky_vars = Variables(global_sticky_vars_file, args=ARGUMENTS)
341
342global_sticky_vars.AddVariables(
343 ('CC', 'C compiler', environ.get('CC', main['CC'])),
344 ('CXX', 'C++ compiler', environ.get('CXX', main['CXX'])),
345 ('BATCH', 'Use batch pool for build and tests', False),
346 ('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
347 ('EXTRAS', 'Add Extra directories to the compilation', '',
348 PathListAllExist, PathListMakeAbsolute)
349 )
350
351# base help text
352help_text = '''
353Usage: scons [scons options] [build options] [target(s)]
354
355Global sticky options:
356'''
357
358help_text += global_sticky_vars.GenerateHelpText(main)
359
360# Update main environment with values from ARGUMENTS & global_sticky_vars_file
361global_sticky_vars.Update(main)
362
363# Save sticky variable settings back to current variables file
364global_sticky_vars.Save(global_sticky_vars_file, main)
365
366# Parse EXTRAS variable to build list of all directories where we're
367# look for sources etc. This list is exported as base_dir_list.
368base_dir = main.srcdir.abspath
369if main['EXTRAS']:
370 extras_dir_list = main['EXTRAS'].split(':')
371else:
372 extras_dir_list = []
373
374Export('base_dir')
375Export('extras_dir_list')
376
377# the ext directory should be on the #includes path
378main.Append(CPPPATH=[Dir('ext')])
379
380# M5_PLY is used by isa_parser.py to find the PLY package.
381main.Append(ENV = { 'M5_PLY' : Dir('ext/ply').abspath })
382
383CXX_version = read_command([main['CXX'],'--version'], exception=False)
384CXX_V = read_command([main['CXX'],'-V'], exception=False)
385
386main['GCC'] = CXX_version and CXX_version.find('g++') >= 0
387main['SUNCC'] = CXX_V and CXX_V.find('Sun C++') >= 0
388main['ICC'] = CXX_V and CXX_V.find('Intel') >= 0
389if main['GCC'] + main['SUNCC'] + main['ICC'] > 1:
390 print 'Error: How can we have two at the same time?'
391 Exit(1)
392
393# Set up default C++ compiler flags
394if main['GCC']:
395 main.Append(CCFLAGS='-pipe')
396 main.Append(CCFLAGS='-fno-strict-aliasing')
397 main.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef'))
398 main.Append(CXXFLAGS='-Wno-deprecated')
399elif main['ICC']:
400 pass #Fix me... add warning flags once we clean up icc warnings
401elif main['SUNCC']:
402 main.Append(CCFLAGS='-Qoption ccfe')
403 main.Append(CCFLAGS='-features=gcc')
404 main.Append(CCFLAGS='-features=extensions')
405 main.Append(CCFLAGS='-library=stlport4')
406 main.Append(CCFLAGS='-xar')
407 #main.Append(CCFLAGS='-instances=semiexplicit')
408else:
409 print 'Error: Don\'t know what compiler options to use for your compiler.'
410 print ' Please fix SConstruct and src/SConscript and try again.'
411 Exit(1)
412
413# Do this after we save setting back, or else we'll tack on an
414# extra 'qdo' every time we run scons.
415if main['BATCH']:
416 main['CC'] = main['BATCH_CMD'] + ' ' + main['CC']
417 main['CXX'] = main['BATCH_CMD'] + ' ' + main['CXX']
418 main['AS'] = main['BATCH_CMD'] + ' ' + main['AS']
419 main['AR'] = main['BATCH_CMD'] + ' ' + main['AR']
420 main['RANLIB'] = main['BATCH_CMD'] + ' ' + main['RANLIB']
421
422if sys.platform == 'cygwin':
423 # cygwin has some header file issues...
424 main.Append(CCFLAGS=Split("-Wno-uninitialized"))
425
426# Check for SWIG
427if not main.has_key('SWIG'):
428 print 'Error: SWIG utility not found.'
429 print ' Please install (see http://www.swig.org) and retry.'
430 Exit(1)
431
432# Check for appropriate SWIG version
433swig_version = read_command(('swig', '-version'), exception='').split()
434# First 3 words should be "SWIG Version x.y.z"
435if len(swig_version) < 3 or \
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440min_swig_version = '1.3.28'
441if compare_versions(swig_version[2], min_swig_version) < 0:
442 print 'Error: SWIG version', min_swig_version, 'or newer required.'
443 print ' Installed version:', swig_version[2]
444 Exit(1)
445
446# Set up SWIG flags & scanner
447swig_flags=Split('-c++ -python -modern -templatereduce $_CPPINCFLAGS')
448main.Append(SWIGFLAGS=swig_flags)
449
450# filter out all existing swig scanners, they mess up the dependency
451# stuff for some reason
452scanners = []
453for scanner in main['SCANNERS']:
454 skeys = scanner.skeys
455 if skeys == '.i':
456 continue
457
458 if isinstance(skeys, (list, tuple)) and '.i' in skeys:
459 continue
460
461 scanners.append(scanner)
462
463# add the new swig scanner that we like better
464from SCons.Scanner import ClassicCPP as CPPScanner
465swig_inc_re = '^[ \t]*[%,#][ \t]*(?:include|import)[ \t]*(<|")([^>"]+)(>|")'
466scanners.append(CPPScanner("SwigScan", [ ".i" ], "CPPPATH", swig_inc_re))
467
468# replace the scanners list that has what we want
469main['SCANNERS'] = scanners
470
471# Add a custom Check function to the Configure context so that we can
472# figure out if the compiler adds leading underscores to global
473# variables. This is needed for the autogenerated asm files that we
474# use for embedding the python code.
475def CheckLeading(context):
476 context.Message("Checking for leading underscore in global variables...")
477 # 1) Define a global variable called x from asm so the C compiler
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491 int main() { return x; }
492 ''', extension=".c")
493 context.env.Append(LEADING_UNDERSCORE=ret)
494 context.Result(ret)
495 return ret
496
497# Platform-specific configuration. Note again that we assume that all
498# builds under a given build root run on the same host platform.
499conf = Configure(main,
500 conf_dir = joinpath(build_root, '.scons_config'),
501 log_file = joinpath(build_root, 'scons_config.log'),
502 custom_tests = { 'CheckLeading' : CheckLeading })
503
504# Check for leading underscores. Don't really need to worry either
505# way so don't need to check the return code.
506conf.CheckLeading()
507
508# Check if we should compile a 64 bit binary on Mac OS X/Darwin
509try:
510 import platform
511 uname = platform.uname()
512 if uname[0] == 'Darwin' and compare_versions(uname[2], '9.0.0') >= 0:
513 if int(read_command('sysctl -n hw.cpu64bit_capable')[0]):
514 main.Append(CCFLAGS='-arch x86_64')
515 main.Append(CFLAGS='-arch x86_64')
516 main.Append(LINKFLAGS='-arch x86_64')
517 main.Append(ASFLAGS='-arch x86_64')
518except:
519 pass
520
521# Recent versions of scons substitute a "Null" object for Configure()
522# when configuration isn't necessary, e.g., if the "--help" option is
523# present. Unfortuantely this Null object always returns false,
524# breaking all our configuration checks. We replace it with our own
525# more optimistic null object that returns True instead.
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530 class NullConf:
531 def __init__(self, env):
532 self.env = env
533 def Finish(self):
534 return self.env
535 def __getattr__(self, mname):
536 return NullCheck
537
538 conf = NullConf(main)
539
540# Find Python include and library directories for embedding the
541# interpreter. For consistency, we will use the same Python
542# installation used to run scons (and thus this script). If you want
543# to link in an alternate version, see above for instructions on how
544# to invoke scons with a different copy of the Python interpreter.
545from distutils import sysconfig
546
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563py_libs = []
564for lib in py_getvar('LIBS').split() + py_getvar('SYSLIBS').split():
565 assert lib.startswith('-l')
566 lib = lib[2:]
567 if lib not in py_libs:
568 py_libs.append(lib)
569py_libs.append(py_version)
570
571main.Append(CPPPATH=py_includes)
572main.Append(LIBPATH=py_lib_path)
573
574# verify that this stuff works
575if not conf.CheckHeader('Python.h', '<>'):
576 print "Error: can't find Python.h header in", py_includes
577 Exit(1)
578
579for lib in py_libs:
580 if not conf.CheckLib(lib):
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626 mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
627 # This seems to work in all versions
628 mysql_config_libs = mysql_config + ' --libs'
629
630######################################################################
631#
632# Finish the configuration
633#
634main = conf.Finish()
635
636######################################################################
637#
638# Collect all non-global variables
639#
640
641# Define the universe of supported ISAs
642all_isa_list = [ ]
643Export('all_isa_list')
644
645# Define the universe of supported CPU models
646all_cpu_list = [ ]
647default_cpus = [ ]
648Export('all_cpu_list', 'default_cpus')
--- 95 unchanged lines hidden (view full) ---
744 elif isinstance(val, str):
745 val = '"' + val + '"'
746
747 # Sources are variable name & value (packaged in SCons Value nodes)
748 return ([target], [Value(variable), Value(val)])
749
750config_builder = Builder(emitter = config_emitter, action = config_action)
751
752main.Append(BUILDERS = { 'ConfigFile' : config_builder })
753
754# libelf build is shared across all configs in the build root.
755main.SConscript('ext/libelf/SConscript',
756 variant_dir = joinpath(build_root, 'libelf'))
757
758# gzstream build is shared across all configs in the build root.
759main.SConscript('ext/gzstream/SConscript',
760 variant_dir = joinpath(build_root, 'gzstream'))
761
762###################################################
763#
764# This function is used to set up a directory with switching headers
765#
766###################################################
767
768main['ALL_ISA_LIST'] = all_isa_list
769def make_switching_dir(dname, switch_headers, env):
770 # Generate the header. target[0] is the full path of the output
771 # header to generate. 'source' is a dummy variable, since we get the
772 # list of ISAs from env['ALL_ISA_LIST'].
773 def gen_switch_hdr(target, source, env):
774 fname = str(target[0])
775 bname = basename(fname)
776 f = open(fname, 'w')
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800Export('make_switching_dir')
801
802###################################################
803#
804# Define build environments for selected configurations.
805#
806###################################################
807
808for variant_path in variant_paths:
809 print "Building in", variant_path
810
811 # Make a copy of the build-root environment to use for this config.
812 env = main.Clone()
813 env['BUILDDIR'] = variant_path
814
815 # variant_dir is the tail component of build path, and is used to
816 # determine the build parameters (e.g., 'ALPHA_SE')
817 (build_root, variant_dir) = splitpath(variant_path)
818
819 # Set env variables according to the build directory config.
820 sticky_vars.files = []
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