153 154######################################################################## 155# 156# Trace Flags 157# 158all_flags = {} 159trace_flags = [] 160def TraceFlag(name, desc=''): 161 if name in all_flags: 162 raise AttributeError, "Flag %s already specified" % name 163 flag = (name, (), desc) 164 trace_flags.append(flag) 165 all_flags[name] = () 166 167def CompoundFlag(name, flags, desc=''): 168 if name in all_flags: 169 raise AttributeError, "Flag %s already specified" % name 170 171 compound = tuple(flags) 172 for flag in compound: 173 if flag not in all_flags: 174 raise AttributeError, "Trace flag %s not found" % flag 175 if all_flags[flag]: 176 raise AttributeError, \ 177 "Compound flag can't point to another compound flag" 178 179 flag = (name, compound, desc) 180 trace_flags.append(flag) 181 all_flags[name] = compound 182 183Export('TraceFlag') 184Export('CompoundFlag') 185 186######################################################################## 187# 188# Set some compiler variables 189# 190 191# Include file paths are rooted in this directory. SCons will 192# automatically expand '.' to refer to both the source directory and 193# the corresponding build directory to pick up generated include 194# files. 195env.Append(CPPPATH=Dir('.')) 196 197# Add a flag defining what THE_ISA should be for all compilation 198env.Append(CPPDEFINES=[('THE_ISA','%s_ISA' % env['TARGET_ISA'].upper())]) 199 200######################################################################## 201# 202# Walk the tree and execute all SConscripts in subdirectories 203# 204 205for base_dir in base_dir_list: 206 here = Dir('.').srcnode().abspath 207 for root, dirs, files in os.walk(base_dir, topdown=True): 208 if root == here: 209 # we don't want to recurse back into this SConscript 210 continue 211 212 if 'SConscript' in files: 213 build_dir = joinpath(env['BUILDDIR'], root[len(base_dir) + 1:]) 214 SConscript(joinpath(root, 'SConscript'), build_dir=build_dir) 215 216for opt in env.ExportOptions: 217 env.ConfigFile(opt) 218 219######################################################################## 220# 221# Prevent any SimObjects from being added after this point, they 222# should all have been added in the SConscripts above 223# 224class DictImporter(object): 225 '''This importer takes a dictionary of arbitrary module names that 226 map to arbitrary filenames.''' 227 def __init__(self, modules): 228 self.modules = modules 229 self.installed = set() 230 231 def __del__(self): 232 self.unload() 233 234 def unload(self): 235 import sys 236 for module in self.installed: 237 del sys.modules[module] 238 self.installed = set() 239 240 def find_module(self, fullname, path): 241 if fullname == '__scons': 242 return self 243 244 if fullname == 'm5.objects': 245 return self 246 247 if fullname.startswith('m5.internal'): 248 return None 249 250 if fullname in self.modules and exists(self.modules[fullname]): 251 return self 252 253 return None 254 255 def load_module(self, fullname): 256 mod = imp.new_module(fullname) 257 sys.modules[fullname] = mod 258 self.installed.add(fullname) 259 260 mod.__loader__ = self 261 if fullname == 'm5.objects': 262 mod.__path__ = fullname.split('.') 263 return mod 264 265 if fullname == '__scons': 266 mod.__dict__['m5_build_env'] = build_env 267 return mod 268 269 srcfile = self.modules[fullname] 270 if basename(srcfile) == '__init__.py': 271 mod.__path__ = fullname.split('.') 272 mod.__file__ = srcfile 273 274 exec file(srcfile, 'r') in mod.__dict__ 275 276 return mod 277 278py_modules = {} 279for source in py_sources: 280 py_modules[source.modpath] = source.snode.abspath 281 282# install the python importer so we can grab stuff from the source 283# tree itself. We can't have SimObjects added after this point or 284# else we won't know about them for the rest of the stuff. 285sim_objects_fixed = True 286importer = DictImporter(py_modules) 287sys.meta_path[0:0] = [ importer ] 288 289import m5 290 291# import all sim objects so we can populate the all_objects list 292# make sure that we're working with a list, then let's sort it 293sim_objects = list(sim_object_modfiles) 294sim_objects.sort() 295for simobj in sim_objects: 296 exec('from m5.objects import %s' % simobj) 297 298# we need to unload all of the currently imported modules so that they 299# will be re-imported the next time the sconscript is run 300importer.unload() 301sys.meta_path.remove(importer) 302 303sim_objects = m5.SimObject.allClasses 304all_enums = m5.params.allEnums 305 306all_params = {} 307for name,obj in sim_objects.iteritems(): 308 for param in obj._params.local.values(): 309 if not hasattr(param, 'swig_decl'): 310 continue 311 pname = param.ptype_str 312 if pname not in all_params: 313 all_params[pname] = param 314 315######################################################################## 316# 317# calculate extra dependencies 318# 319module_depends = ["m5", "m5.SimObject", "m5.params"] 320depends = [ File(py_modules[dep]) for dep in module_depends ] 321 322######################################################################## 323# 324# Commands for the basic automatically generated python files 325# 326 327# Generate Python file containing a dict specifying the current 328# build_env flags. 329def makeDefinesPyFile(target, source, env): 330 f = file(str(target[0]), 'w') 331 print >>f, "m5_build_env = ", source[0] 332 f.close() 333 334# Generate python file containing info about the M5 source code 335def makeInfoPyFile(target, source, env): 336 f = file(str(target[0]), 'w') 337 for src in source: 338 data = ''.join(file(src.srcnode().abspath, 'r').xreadlines()) 339 print >>f, "%s = %s" % (src, repr(data)) 340 f.close() 341 342# Generate the __init__.py file for m5.objects 343def makeObjectsInitFile(target, source, env): 344 f = file(str(target[0]), 'w') 345 print >>f, 'from params import *' 346 print >>f, 'from m5.SimObject import *' 347 for module in source: 348 print >>f, 'from %s import *' % module.get_contents() 349 f.close() 350 351# Generate a file with all of the compile options in it 352env.Command('python/m5/defines.py', Value(build_env), makeDefinesPyFile) 353PySource('m5', 'python/m5/defines.py') 354 355# Generate a file that wraps the basic top level files 356env.Command('python/m5/info.py', 357 [ '#/AUTHORS', '#/LICENSE', '#/README', '#/RELEASE_NOTES' ], 358 makeInfoPyFile) 359PySource('m5', 'python/m5/info.py') 360 361# Generate an __init__.py file for the objects package 362env.Command('python/m5/objects/__init__.py', 363 [ Value(o) for o in sort_list(sim_object_modfiles) ], 364 makeObjectsInitFile) 365PySource('m5.objects', 'python/m5/objects/__init__.py') 366 367######################################################################## 368# 369# Create all of the SimObject param headers and enum headers 370# 371 372def createSimObjectParam(target, source, env): 373 assert len(target) == 1 and len(source) == 1 374 375 hh_file = file(target[0].abspath, 'w') 376 name = str(source[0].get_contents()) 377 obj = sim_objects[name] 378 379 print >>hh_file, obj.cxx_decl() 380 381def createSwigParam(target, source, env): 382 assert len(target) == 1 and len(source) == 1 383 384 i_file = file(target[0].abspath, 'w') 385 name = str(source[0].get_contents()) 386 param = all_params[name] 387 388 for line in param.swig_decl(): 389 print >>i_file, line 390 391def createEnumStrings(target, source, env): 392 assert len(target) == 1 and len(source) == 1 393 394 cc_file = file(target[0].abspath, 'w') 395 name = str(source[0].get_contents()) 396 obj = all_enums[name] 397 398 print >>cc_file, obj.cxx_def() 399 cc_file.close() 400 401def createEnumParam(target, source, env): 402 assert len(target) == 1 and len(source) == 1 403 404 hh_file = file(target[0].abspath, 'w') 405 name = str(source[0].get_contents()) 406 obj = all_enums[name] 407 408 print >>hh_file, obj.cxx_decl() 409 410# Generate all of the SimObject param struct header files 411params_hh_files = [] 412for name,simobj in sim_objects.iteritems(): 413 extra_deps = [ File(py_modules[simobj.__module__]) ] 414 415 hh_file = File('params/%s.hh' % name) 416 params_hh_files.append(hh_file) 417 env.Command(hh_file, Value(name), createSimObjectParam) 418 env.Depends(hh_file, depends + extra_deps) 419 420# Generate any parameter header files needed 421params_i_files = [] 422for name,param in all_params.iteritems(): 423 if isinstance(param, m5.params.VectorParamDesc): 424 ext = 'vptype' 425 else: 426 ext = 'ptype' 427 428 i_file = File('params/%s_%s.i' % (name, ext)) 429 params_i_files.append(i_file) 430 env.Command(i_file, Value(name), createSwigParam) 431 env.Depends(i_file, depends) 432 433# Generate all enum header files 434for name,enum in all_enums.iteritems(): 435 extra_deps = [ File(py_modules[enum.__module__]) ] 436 437 cc_file = File('enums/%s.cc' % name) 438 env.Command(cc_file, Value(name), createEnumStrings) 439 env.Depends(cc_file, depends + extra_deps) 440 Source(cc_file) 441 442 hh_file = File('enums/%s.hh' % name) 443 env.Command(hh_file, Value(name), createEnumParam) 444 env.Depends(hh_file, depends + extra_deps) 445 446# Build the big monolithic swigged params module (wraps all SimObject 447# param structs and enum structs) 448def buildParams(target, source, env): 449 names = [ s.get_contents() for s in source ] 450 objs = [ sim_objects[name] for name in names ] 451 out = file(target[0].abspath, 'w') 452 453 ordered_objs = [] 454 obj_seen = set() 455 def order_obj(obj): 456 name = str(obj) 457 if name in obj_seen: 458 return 459 460 obj_seen.add(name) 461 if str(obj) != 'SimObject': 462 order_obj(obj.__bases__[0]) 463 464 ordered_objs.append(obj) 465 466 for obj in objs: 467 order_obj(obj) 468 469 enums = set() 470 predecls = [] 471 pd_seen = set() 472 473 def add_pds(*pds): 474 for pd in pds: 475 if pd not in pd_seen: 476 predecls.append(pd) 477 pd_seen.add(pd) 478 479 for obj in ordered_objs: 480 params = obj._params.local.values() 481 for param in params: 482 ptype = param.ptype 483 if issubclass(ptype, m5.params.Enum): 484 if ptype not in enums: 485 enums.add(ptype) 486 pds = param.swig_predecls() 487 if isinstance(pds, (list, tuple)): 488 add_pds(*pds) 489 else: 490 add_pds(pds) 491 492 print >>out, '%module params' 493 494 print >>out, '%{' 495 for obj in ordered_objs: 496 print >>out, '#include "params/%s.hh"' % obj 497 print >>out, '%}' 498 499 for pd in predecls: 500 print >>out, pd 501 502 enums = list(enums) 503 enums.sort() 504 for enum in enums: 505 print >>out, '%%include "enums/%s.hh"' % enum.__name__ 506 print >>out 507 508 for obj in ordered_objs: 509 if obj.swig_objdecls: 510 for decl in obj.swig_objdecls: 511 print >>out, decl 512 continue 513 514 code = '' 515 base = obj.get_base() 516 517 code += '// stop swig from creating/wrapping default ctor/dtor\n' 518 code += '%%nodefault %s;\n' % obj.cxx_class 519 code += 'class %s ' % obj.cxx_class 520 if base: 521 code += ': public %s' % base 522 code += ' {};\n' 523 524 klass = obj.cxx_class; 525 if hasattr(obj, 'cxx_namespace'): 526 new_code = 'namespace %s {\n' % obj.cxx_namespace 527 new_code += code 528 new_code += '}\n' 529 code = new_code 530 klass = '%s::%s' % (obj.cxx_namespace, klass) 531 532 print >>out, code 533 534 print >>out, '%%include "src/sim/sim_object_params.hh"' % obj 535 for obj in ordered_objs: 536 print >>out, '%%include "params/%s.hh"' % obj 537 538params_file = File('params/params.i') 539names = sort_list(sim_objects.keys()) 540env.Command(params_file, [ Value(v) for v in names ], buildParams) 541env.Depends(params_file, params_hh_files + params_i_files + depends) 542SwigSource('m5.objects', params_file) 543 544# Build all swig modules 545swig_modules = [] 546cc_swig_sources = [] 547for source,package in swig_sources: 548 filename = str(source) 549 assert filename.endswith('.i') 550 551 base = '.'.join(filename.split('.')[:-1]) 552 module = basename(base) 553 cc_file = base + '_wrap.cc' 554 py_file = base + '.py' 555 556 env.Command([cc_file, py_file], source, 557 '$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} ' 558 '-o ${TARGETS[0]} $SOURCES') 559 env.Depends(py_file, source) 560 env.Depends(cc_file, source) 561 562 swig_modules.append(Value(module)) 563 cc_swig_sources.append(File(cc_file)) 564 PySource(package, py_file) 565 566# Generate the main swig init file 567def makeSwigInit(target, source, env): 568 f = file(str(target[0]), 'w') 569 print >>f, 'extern "C" {' 570 for module in source: 571 print >>f, ' void init_%s();' % module.get_contents() 572 print >>f, '}' 573 print >>f, 'void initSwig() {' 574 for module in source: 575 print >>f, ' init_%s();' % module.get_contents() 576 print >>f, '}' 577 f.close() 578 579env.Command('python/swig/init.cc', swig_modules, makeSwigInit) 580Source('python/swig/init.cc') 581 582# Generate traceflags.py 583def traceFlagsPy(target, source, env): 584 assert(len(target) == 1) 585 586 f = file(str(target[0]), 'w') 587 588 allFlags = [] 589 for s in source: 590 val = eval(s.get_contents()) 591 allFlags.append(val) 592 593 print >>f, 'baseFlags = [' 594 for flag, compound, desc in allFlags: 595 if not compound: 596 print >>f, " '%s'," % flag 597 print >>f, " ]" 598 print >>f 599 600 print >>f, 'compoundFlags = [' 601 print >>f, " 'All'," 602 for flag, compound, desc in allFlags: 603 if compound: 604 print >>f, " '%s'," % flag 605 print >>f, " ]" 606 print >>f 607 608 print >>f, "allFlags = frozenset(baseFlags + compoundFlags)" 609 print >>f 610 611 print >>f, 'compoundFlagMap = {' 612 all = tuple([flag for flag,compound,desc in allFlags if not compound]) 613 print >>f, " 'All' : %s," % (all, ) 614 for flag, compound, desc in allFlags: 615 if compound: 616 print >>f, " '%s' : %s," % (flag, compound) 617 print >>f, " }" 618 print >>f 619 620 print >>f, 'flagDescriptions = {' 621 print >>f, " 'All' : 'All flags'," 622 for flag, compound, desc in allFlags: 623 print >>f, " '%s' : '%s'," % (flag, desc) 624 print >>f, " }" 625 626 f.close() 627 628def traceFlagsCC(target, source, env): 629 assert(len(target) == 1) 630 631 f = file(str(target[0]), 'w') 632 633 allFlags = [] 634 for s in source: 635 val = eval(s.get_contents()) 636 allFlags.append(val) 637 638 # file header 639 print >>f, ''' 640/* 641 * DO NOT EDIT THIS FILE! Automatically generated 642 */ 643 644#include "base/traceflags.hh" 645 646using namespace Trace; 647 648const char *Trace::flagStrings[] = 649{''' 650 651 # The string array is used by SimpleEnumParam to map the strings 652 # provided by the user to enum values. 653 for flag, compound, desc in allFlags: 654 if not compound: 655 print >>f, ' "%s",' % flag 656 657 print >>f, ' "All",' 658 for flag, compound, desc in allFlags: 659 if compound: 660 print >>f, ' "%s",' % flag 661 662 print >>f, '};' 663 print >>f 664 print >>f, 'const int Trace::numFlagStrings = %d;' % (len(allFlags) + 1) 665 print >>f 666 667 # 668 # Now define the individual compound flag arrays. There is an array 669 # for each compound flag listing the component base flags. 670 # 671 all = tuple([flag for flag,compound,desc in allFlags if not compound]) 672 print >>f, 'static const Flags AllMap[] = {' 673 for flag, compound, desc in allFlags: 674 if not compound: 675 print >>f, " %s," % flag 676 print >>f, '};' 677 print >>f 678 679 for flag, compound, desc in allFlags: 680 if not compound: 681 continue 682 print >>f, 'static const Flags %sMap[] = {' % flag 683 for flag in compound: 684 print >>f, " %s," % flag 685 print >>f, " (Flags)-1" 686 print >>f, '};' 687 print >>f 688 689 # 690 # Finally the compoundFlags[] array maps the compound flags 691 # to their individual arrays/ 692 # 693 print >>f, 'const Flags *Trace::compoundFlags[] =' 694 print >>f, '{' 695 print >>f, ' AllMap,' 696 for flag, compound, desc in allFlags: 697 if compound: 698 print >>f, ' %sMap,' % flag 699 # file trailer 700 print >>f, '};' 701 702 f.close() 703 704def traceFlagsHH(target, source, env): 705 assert(len(target) == 1) 706 707 f = file(str(target[0]), 'w') 708 709 allFlags = [] 710 for s in source: 711 val = eval(s.get_contents()) 712 allFlags.append(val) 713 714 # file header boilerplate 715 print >>f, ''' 716/* 717 * DO NOT EDIT THIS FILE! 718 * 719 * Automatically generated from traceflags.py 720 */ 721 722#ifndef __BASE_TRACE_FLAGS_HH__ 723#define __BASE_TRACE_FLAGS_HH__ 724 725namespace Trace { 726 727enum Flags {''' 728 729 # Generate the enum. Base flags come first, then compound flags. 730 idx = 0 731 for flag, compound, desc in allFlags: 732 if not compound: 733 print >>f, ' %s = %d,' % (flag, idx) 734 idx += 1 735 736 numBaseFlags = idx 737 print >>f, ' NumFlags = %d,' % idx 738 739 # put a comment in here to separate base from compound flags 740 print >>f, ''' 741// The remaining enum values are *not* valid indices for Trace::flags. 742// They are "compound" flags, which correspond to sets of base 743// flags, and are used by changeFlag.''' 744 745 print >>f, ' All = %d,' % idx 746 idx += 1 747 for flag, compound, desc in allFlags: 748 if compound: 749 print >>f, ' %s = %d,' % (flag, idx) 750 idx += 1 751 752 numCompoundFlags = idx - numBaseFlags 753 print >>f, ' NumCompoundFlags = %d' % numCompoundFlags 754 755 # trailer boilerplate 756 print >>f, '''\ 757}; // enum Flags 758 759// Array of strings for SimpleEnumParam 760extern const char *flagStrings[]; 761extern const int numFlagStrings; 762 763// Array of arraay pointers: for each compound flag, gives the list of 764// base flags to set. Inidividual flag arrays are terminated by -1. 765extern const Flags *compoundFlags[]; 766 767/* namespace Trace */ } 768 769#endif // __BASE_TRACE_FLAGS_HH__ 770''' 771 772 f.close() 773 774flags = [ Value(f) for f in trace_flags ] 775env.Command('base/traceflags.py', flags, traceFlagsPy) 776PySource('m5', 'base/traceflags.py') 777 778env.Command('base/traceflags.hh', flags, traceFlagsHH) 779env.Command('base/traceflags.cc', flags, traceFlagsCC) 780Source('base/traceflags.cc') 781 782# Generate program_info.cc 783def programInfo(target, source, env): 784 def gen_file(target, rev, node, date): 785 pi_stats = file(target, 'w') 786 print >>pi_stats, 'const char *hgRev = "%s:%s";' % (rev, node) 787 print >>pi_stats, 'const char *hgDate = "%s";' % date 788 pi_stats.close() 789 790 target = str(target[0]) 791 scons_dir = str(source[0].get_contents()) 792 try: 793 import mercurial.demandimport, mercurial.hg, mercurial.ui 794 import mercurial.util, mercurial.node 795 if not exists(scons_dir) or not isdir(scons_dir) or \ 796 not exists(joinpath(scons_dir, ".hg")): 797 raise ValueError 798 repo = mercurial.hg.repository(mercurial.ui.ui(), scons_dir) 799 rev = mercurial.node.nullrev + repo.changelog.count() 800 changenode = repo.changelog.node(rev) 801 changes = repo.changelog.read(changenode) 802 date = mercurial.util.datestr(changes[2]) 803 804 gen_file(target, rev, mercurial.node.hex(changenode), date) 805 806 mercurial.demandimport.disable() 807 except ImportError: 808 gen_file(target, "Unknown", "Unknown", "Unknown") 809 810 except: 811 print "in except" 812 gen_file(target, "Unknown", "Unknown", "Unknown") 813 mercurial.demandimport.disable() 814 815env.Command('base/program_info.cc', 816 Value(str(SCons.Node.FS.default_fs.SConstruct_dir)), 817 programInfo) 818 819# embed python files. All .py files that have been indicated by a 820# PySource() call in a SConscript need to be embedded into the M5 821# library. To do that, we compile the file to byte code, marshal the 822# byte code, compress it, and then generate an assembly file that 823# inserts the result into the data section with symbols indicating the 824# beginning, and end (and with the size at the end) 825py_sources_tnodes = {} 826for pysource in py_sources: 827 py_sources_tnodes[pysource.tnode] = pysource 828 829def objectifyPyFile(target, source, env): 830 '''Action function to compile a .py into a code object, marshal 831 it, compress it, and stick it into an asm file so the code appears 832 as just bytes with a label in the data section''' 833 834 src = file(str(source[0]), 'r').read() 835 dst = file(str(target[0]), 'w') 836 837 pysource = py_sources_tnodes[source[0]] 838 compiled = compile(src, pysource.snode.path, 'exec') 839 marshalled = marshal.dumps(compiled) 840 compressed = zlib.compress(marshalled) 841 data = compressed 842 843 # Some C/C++ compilers prepend an underscore to global symbol 844 # names, so if they're going to do that, we need to prepend that 845 # leading underscore to globals in the assembly file. 846 if env['LEADING_UNDERSCORE']: 847 sym = '_' + pysource.symname 848 else: 849 sym = pysource.symname 850 851 step = 16 852 print >>dst, ".data" 853 print >>dst, ".globl %s_beg" % sym 854 print >>dst, ".globl %s_end" % sym 855 print >>dst, "%s_beg:" % sym 856 for i in xrange(0, len(data), step): 857 x = array.array('B', data[i:i+step]) 858 print >>dst, ".byte", ','.join([str(d) for d in x]) 859 print >>dst, "%s_end:" % sym 860 print >>dst, ".long %d" % len(marshalled) 861 862for source in py_sources: 863 env.Command(source.assembly, source.tnode, objectifyPyFile) 864 Source(source.assembly) 865 866# Generate init_python.cc which creates a bunch of EmbeddedPyModule 867# structs that describe the embedded python code. One such struct 868# contains information about the importer that python uses to get at 869# the embedded files, and then there's a list of all of the rest that 870# the importer uses to load the rest on demand. 871py_sources_symbols = {} 872for pysource in py_sources: 873 py_sources_symbols[pysource.symname] = pysource 874def pythonInit(target, source, env): 875 dst = file(str(target[0]), 'w') 876 877 def dump_mod(sym, endchar=','): 878 pysource = py_sources_symbols[sym] 879 print >>dst, ' { "%s",' % pysource.arcname 880 print >>dst, ' "%s",' % pysource.modpath 881 print >>dst, ' %s_beg, %s_end,' % (sym, sym) 882 print >>dst, ' %s_end - %s_beg,' % (sym, sym) 883 print >>dst, ' *(int *)%s_end }%s' % (sym, endchar) 884 885 print >>dst, '#include "sim/init.hh"' 886 887 for sym in source: 888 sym = sym.get_contents() 889 print >>dst, "extern const char %s_beg[], %s_end[];" % (sym, sym) 890 891 print >>dst, "const EmbeddedPyModule embeddedPyImporter = " 892 dump_mod("PyEMB_importer", endchar=';'); 893 print >>dst 894 895 print >>dst, "const EmbeddedPyModule embeddedPyModules[] = {" 896 for i,sym in enumerate(source): 897 sym = sym.get_contents() 898 if sym == "PyEMB_importer": 899 # Skip the importer since we've already exported it 900 continue 901 dump_mod(sym) 902 print >>dst, " { 0, 0, 0, 0, 0, 0 }" 903 print >>dst, "};" 904 905symbols = [Value(s.symname) for s in py_sources] 906env.Command('sim/init_python.cc', symbols, pythonInit) 907Source('sim/init_python.cc') 908 909######################################################################## 910# 911# Define binaries. Each different build type (debug, opt, etc.) gets 912# a slightly different build environment. 913# 914 915# List of constructed environments to pass back to SConstruct 916envList = [] 917 918# This function adds the specified sources to the given build 919# environment, and returns a list of all the corresponding SCons 920# Object nodes (including an extra one for date.cc). We explicitly 921# add the Object nodes so we can set up special dependencies for 922# date.cc. 923def make_objs(sources, env): 924 objs = [env.Object(s) for s in sources] 925 926 # make date.cc depend on all other objects so it always gets 927 # recompiled whenever anything else does 928 date_obj = env.Object('base/date.cc') 929 930 # Make the generation of program_info.cc dependend on all 931 # the other cc files and the compiling of program_info.cc 932 # dependent on all the objects but program_info.o 933 pinfo_obj = env.Object('base/program_info.cc') 934 env.Depends('base/program_info.cc', sources) 935 env.Depends(date_obj, objs) 936 env.Depends(pinfo_obj, objs) 937 objs.extend([date_obj,pinfo_obj]) 938 return objs 939 940# Function to create a new build environment as clone of current 941# environment 'env' with modified object suffix and optional stripped 942# binary. Additional keyword arguments are appended to corresponding 943# build environment vars. 944def makeEnv(label, objsfx, strip = False, **kwargs): 945 newEnv = env.Copy(OBJSUFFIX=objsfx) 946 newEnv.Label = label 947 newEnv.Append(**kwargs) 948 949 swig_env = newEnv.Copy() 950 if env['GCC']: 951 swig_env.Append(CCFLAGS='-Wno-uninitialized') 952 swig_env.Append(CCFLAGS='-Wno-sign-compare') 953 swig_env.Append(CCFLAGS='-Wno-parentheses') 954 swig_objs = [ swig_env.Object(s) for s in cc_swig_sources ] 955 956 # First make a library of everything but main() so other programs can 957 # link against m5. 958 # 959 # SCons doesn't know to append a library suffix when there is a '.' in the 960 # name. Use '_' instead. 961 962 m5lib = newEnv.Library('m5_' + label, 963 make_objs(cc_lib_sources, newEnv) + swig_objs) 964
| 167 168######################################################################## 169# 170# Trace Flags 171# 172all_flags = {} 173trace_flags = [] 174def TraceFlag(name, desc=''): 175 if name in all_flags: 176 raise AttributeError, "Flag %s already specified" % name 177 flag = (name, (), desc) 178 trace_flags.append(flag) 179 all_flags[name] = () 180 181def CompoundFlag(name, flags, desc=''): 182 if name in all_flags: 183 raise AttributeError, "Flag %s already specified" % name 184 185 compound = tuple(flags) 186 for flag in compound: 187 if flag not in all_flags: 188 raise AttributeError, "Trace flag %s not found" % flag 189 if all_flags[flag]: 190 raise AttributeError, \ 191 "Compound flag can't point to another compound flag" 192 193 flag = (name, compound, desc) 194 trace_flags.append(flag) 195 all_flags[name] = compound 196 197Export('TraceFlag') 198Export('CompoundFlag') 199 200######################################################################## 201# 202# Set some compiler variables 203# 204 205# Include file paths are rooted in this directory. SCons will 206# automatically expand '.' to refer to both the source directory and 207# the corresponding build directory to pick up generated include 208# files. 209env.Append(CPPPATH=Dir('.')) 210 211# Add a flag defining what THE_ISA should be for all compilation 212env.Append(CPPDEFINES=[('THE_ISA','%s_ISA' % env['TARGET_ISA'].upper())]) 213 214######################################################################## 215# 216# Walk the tree and execute all SConscripts in subdirectories 217# 218 219for base_dir in base_dir_list: 220 here = Dir('.').srcnode().abspath 221 for root, dirs, files in os.walk(base_dir, topdown=True): 222 if root == here: 223 # we don't want to recurse back into this SConscript 224 continue 225 226 if 'SConscript' in files: 227 build_dir = joinpath(env['BUILDDIR'], root[len(base_dir) + 1:]) 228 SConscript(joinpath(root, 'SConscript'), build_dir=build_dir) 229 230for opt in env.ExportOptions: 231 env.ConfigFile(opt) 232 233######################################################################## 234# 235# Prevent any SimObjects from being added after this point, they 236# should all have been added in the SConscripts above 237# 238class DictImporter(object): 239 '''This importer takes a dictionary of arbitrary module names that 240 map to arbitrary filenames.''' 241 def __init__(self, modules): 242 self.modules = modules 243 self.installed = set() 244 245 def __del__(self): 246 self.unload() 247 248 def unload(self): 249 import sys 250 for module in self.installed: 251 del sys.modules[module] 252 self.installed = set() 253 254 def find_module(self, fullname, path): 255 if fullname == '__scons': 256 return self 257 258 if fullname == 'm5.objects': 259 return self 260 261 if fullname.startswith('m5.internal'): 262 return None 263 264 if fullname in self.modules and exists(self.modules[fullname]): 265 return self 266 267 return None 268 269 def load_module(self, fullname): 270 mod = imp.new_module(fullname) 271 sys.modules[fullname] = mod 272 self.installed.add(fullname) 273 274 mod.__loader__ = self 275 if fullname == 'm5.objects': 276 mod.__path__ = fullname.split('.') 277 return mod 278 279 if fullname == '__scons': 280 mod.__dict__['m5_build_env'] = build_env 281 return mod 282 283 srcfile = self.modules[fullname] 284 if basename(srcfile) == '__init__.py': 285 mod.__path__ = fullname.split('.') 286 mod.__file__ = srcfile 287 288 exec file(srcfile, 'r') in mod.__dict__ 289 290 return mod 291 292py_modules = {} 293for source in py_sources: 294 py_modules[source.modpath] = source.snode.abspath 295 296# install the python importer so we can grab stuff from the source 297# tree itself. We can't have SimObjects added after this point or 298# else we won't know about them for the rest of the stuff. 299sim_objects_fixed = True 300importer = DictImporter(py_modules) 301sys.meta_path[0:0] = [ importer ] 302 303import m5 304 305# import all sim objects so we can populate the all_objects list 306# make sure that we're working with a list, then let's sort it 307sim_objects = list(sim_object_modfiles) 308sim_objects.sort() 309for simobj in sim_objects: 310 exec('from m5.objects import %s' % simobj) 311 312# we need to unload all of the currently imported modules so that they 313# will be re-imported the next time the sconscript is run 314importer.unload() 315sys.meta_path.remove(importer) 316 317sim_objects = m5.SimObject.allClasses 318all_enums = m5.params.allEnums 319 320all_params = {} 321for name,obj in sim_objects.iteritems(): 322 for param in obj._params.local.values(): 323 if not hasattr(param, 'swig_decl'): 324 continue 325 pname = param.ptype_str 326 if pname not in all_params: 327 all_params[pname] = param 328 329######################################################################## 330# 331# calculate extra dependencies 332# 333module_depends = ["m5", "m5.SimObject", "m5.params"] 334depends = [ File(py_modules[dep]) for dep in module_depends ] 335 336######################################################################## 337# 338# Commands for the basic automatically generated python files 339# 340 341# Generate Python file containing a dict specifying the current 342# build_env flags. 343def makeDefinesPyFile(target, source, env): 344 f = file(str(target[0]), 'w') 345 print >>f, "m5_build_env = ", source[0] 346 f.close() 347 348# Generate python file containing info about the M5 source code 349def makeInfoPyFile(target, source, env): 350 f = file(str(target[0]), 'w') 351 for src in source: 352 data = ''.join(file(src.srcnode().abspath, 'r').xreadlines()) 353 print >>f, "%s = %s" % (src, repr(data)) 354 f.close() 355 356# Generate the __init__.py file for m5.objects 357def makeObjectsInitFile(target, source, env): 358 f = file(str(target[0]), 'w') 359 print >>f, 'from params import *' 360 print >>f, 'from m5.SimObject import *' 361 for module in source: 362 print >>f, 'from %s import *' % module.get_contents() 363 f.close() 364 365# Generate a file with all of the compile options in it 366env.Command('python/m5/defines.py', Value(build_env), makeDefinesPyFile) 367PySource('m5', 'python/m5/defines.py') 368 369# Generate a file that wraps the basic top level files 370env.Command('python/m5/info.py', 371 [ '#/AUTHORS', '#/LICENSE', '#/README', '#/RELEASE_NOTES' ], 372 makeInfoPyFile) 373PySource('m5', 'python/m5/info.py') 374 375# Generate an __init__.py file for the objects package 376env.Command('python/m5/objects/__init__.py', 377 [ Value(o) for o in sort_list(sim_object_modfiles) ], 378 makeObjectsInitFile) 379PySource('m5.objects', 'python/m5/objects/__init__.py') 380 381######################################################################## 382# 383# Create all of the SimObject param headers and enum headers 384# 385 386def createSimObjectParam(target, source, env): 387 assert len(target) == 1 and len(source) == 1 388 389 hh_file = file(target[0].abspath, 'w') 390 name = str(source[0].get_contents()) 391 obj = sim_objects[name] 392 393 print >>hh_file, obj.cxx_decl() 394 395def createSwigParam(target, source, env): 396 assert len(target) == 1 and len(source) == 1 397 398 i_file = file(target[0].abspath, 'w') 399 name = str(source[0].get_contents()) 400 param = all_params[name] 401 402 for line in param.swig_decl(): 403 print >>i_file, line 404 405def createEnumStrings(target, source, env): 406 assert len(target) == 1 and len(source) == 1 407 408 cc_file = file(target[0].abspath, 'w') 409 name = str(source[0].get_contents()) 410 obj = all_enums[name] 411 412 print >>cc_file, obj.cxx_def() 413 cc_file.close() 414 415def createEnumParam(target, source, env): 416 assert len(target) == 1 and len(source) == 1 417 418 hh_file = file(target[0].abspath, 'w') 419 name = str(source[0].get_contents()) 420 obj = all_enums[name] 421 422 print >>hh_file, obj.cxx_decl() 423 424# Generate all of the SimObject param struct header files 425params_hh_files = [] 426for name,simobj in sim_objects.iteritems(): 427 extra_deps = [ File(py_modules[simobj.__module__]) ] 428 429 hh_file = File('params/%s.hh' % name) 430 params_hh_files.append(hh_file) 431 env.Command(hh_file, Value(name), createSimObjectParam) 432 env.Depends(hh_file, depends + extra_deps) 433 434# Generate any parameter header files needed 435params_i_files = [] 436for name,param in all_params.iteritems(): 437 if isinstance(param, m5.params.VectorParamDesc): 438 ext = 'vptype' 439 else: 440 ext = 'ptype' 441 442 i_file = File('params/%s_%s.i' % (name, ext)) 443 params_i_files.append(i_file) 444 env.Command(i_file, Value(name), createSwigParam) 445 env.Depends(i_file, depends) 446 447# Generate all enum header files 448for name,enum in all_enums.iteritems(): 449 extra_deps = [ File(py_modules[enum.__module__]) ] 450 451 cc_file = File('enums/%s.cc' % name) 452 env.Command(cc_file, Value(name), createEnumStrings) 453 env.Depends(cc_file, depends + extra_deps) 454 Source(cc_file) 455 456 hh_file = File('enums/%s.hh' % name) 457 env.Command(hh_file, Value(name), createEnumParam) 458 env.Depends(hh_file, depends + extra_deps) 459 460# Build the big monolithic swigged params module (wraps all SimObject 461# param structs and enum structs) 462def buildParams(target, source, env): 463 names = [ s.get_contents() for s in source ] 464 objs = [ sim_objects[name] for name in names ] 465 out = file(target[0].abspath, 'w') 466 467 ordered_objs = [] 468 obj_seen = set() 469 def order_obj(obj): 470 name = str(obj) 471 if name in obj_seen: 472 return 473 474 obj_seen.add(name) 475 if str(obj) != 'SimObject': 476 order_obj(obj.__bases__[0]) 477 478 ordered_objs.append(obj) 479 480 for obj in objs: 481 order_obj(obj) 482 483 enums = set() 484 predecls = [] 485 pd_seen = set() 486 487 def add_pds(*pds): 488 for pd in pds: 489 if pd not in pd_seen: 490 predecls.append(pd) 491 pd_seen.add(pd) 492 493 for obj in ordered_objs: 494 params = obj._params.local.values() 495 for param in params: 496 ptype = param.ptype 497 if issubclass(ptype, m5.params.Enum): 498 if ptype not in enums: 499 enums.add(ptype) 500 pds = param.swig_predecls() 501 if isinstance(pds, (list, tuple)): 502 add_pds(*pds) 503 else: 504 add_pds(pds) 505 506 print >>out, '%module params' 507 508 print >>out, '%{' 509 for obj in ordered_objs: 510 print >>out, '#include "params/%s.hh"' % obj 511 print >>out, '%}' 512 513 for pd in predecls: 514 print >>out, pd 515 516 enums = list(enums) 517 enums.sort() 518 for enum in enums: 519 print >>out, '%%include "enums/%s.hh"' % enum.__name__ 520 print >>out 521 522 for obj in ordered_objs: 523 if obj.swig_objdecls: 524 for decl in obj.swig_objdecls: 525 print >>out, decl 526 continue 527 528 code = '' 529 base = obj.get_base() 530 531 code += '// stop swig from creating/wrapping default ctor/dtor\n' 532 code += '%%nodefault %s;\n' % obj.cxx_class 533 code += 'class %s ' % obj.cxx_class 534 if base: 535 code += ': public %s' % base 536 code += ' {};\n' 537 538 klass = obj.cxx_class; 539 if hasattr(obj, 'cxx_namespace'): 540 new_code = 'namespace %s {\n' % obj.cxx_namespace 541 new_code += code 542 new_code += '}\n' 543 code = new_code 544 klass = '%s::%s' % (obj.cxx_namespace, klass) 545 546 print >>out, code 547 548 print >>out, '%%include "src/sim/sim_object_params.hh"' % obj 549 for obj in ordered_objs: 550 print >>out, '%%include "params/%s.hh"' % obj 551 552params_file = File('params/params.i') 553names = sort_list(sim_objects.keys()) 554env.Command(params_file, [ Value(v) for v in names ], buildParams) 555env.Depends(params_file, params_hh_files + params_i_files + depends) 556SwigSource('m5.objects', params_file) 557 558# Build all swig modules 559swig_modules = [] 560cc_swig_sources = [] 561for source,package in swig_sources: 562 filename = str(source) 563 assert filename.endswith('.i') 564 565 base = '.'.join(filename.split('.')[:-1]) 566 module = basename(base) 567 cc_file = base + '_wrap.cc' 568 py_file = base + '.py' 569 570 env.Command([cc_file, py_file], source, 571 '$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} ' 572 '-o ${TARGETS[0]} $SOURCES') 573 env.Depends(py_file, source) 574 env.Depends(cc_file, source) 575 576 swig_modules.append(Value(module)) 577 cc_swig_sources.append(File(cc_file)) 578 PySource(package, py_file) 579 580# Generate the main swig init file 581def makeSwigInit(target, source, env): 582 f = file(str(target[0]), 'w') 583 print >>f, 'extern "C" {' 584 for module in source: 585 print >>f, ' void init_%s();' % module.get_contents() 586 print >>f, '}' 587 print >>f, 'void initSwig() {' 588 for module in source: 589 print >>f, ' init_%s();' % module.get_contents() 590 print >>f, '}' 591 f.close() 592 593env.Command('python/swig/init.cc', swig_modules, makeSwigInit) 594Source('python/swig/init.cc') 595 596# Generate traceflags.py 597def traceFlagsPy(target, source, env): 598 assert(len(target) == 1) 599 600 f = file(str(target[0]), 'w') 601 602 allFlags = [] 603 for s in source: 604 val = eval(s.get_contents()) 605 allFlags.append(val) 606 607 print >>f, 'baseFlags = [' 608 for flag, compound, desc in allFlags: 609 if not compound: 610 print >>f, " '%s'," % flag 611 print >>f, " ]" 612 print >>f 613 614 print >>f, 'compoundFlags = [' 615 print >>f, " 'All'," 616 for flag, compound, desc in allFlags: 617 if compound: 618 print >>f, " '%s'," % flag 619 print >>f, " ]" 620 print >>f 621 622 print >>f, "allFlags = frozenset(baseFlags + compoundFlags)" 623 print >>f 624 625 print >>f, 'compoundFlagMap = {' 626 all = tuple([flag for flag,compound,desc in allFlags if not compound]) 627 print >>f, " 'All' : %s," % (all, ) 628 for flag, compound, desc in allFlags: 629 if compound: 630 print >>f, " '%s' : %s," % (flag, compound) 631 print >>f, " }" 632 print >>f 633 634 print >>f, 'flagDescriptions = {' 635 print >>f, " 'All' : 'All flags'," 636 for flag, compound, desc in allFlags: 637 print >>f, " '%s' : '%s'," % (flag, desc) 638 print >>f, " }" 639 640 f.close() 641 642def traceFlagsCC(target, source, env): 643 assert(len(target) == 1) 644 645 f = file(str(target[0]), 'w') 646 647 allFlags = [] 648 for s in source: 649 val = eval(s.get_contents()) 650 allFlags.append(val) 651 652 # file header 653 print >>f, ''' 654/* 655 * DO NOT EDIT THIS FILE! Automatically generated 656 */ 657 658#include "base/traceflags.hh" 659 660using namespace Trace; 661 662const char *Trace::flagStrings[] = 663{''' 664 665 # The string array is used by SimpleEnumParam to map the strings 666 # provided by the user to enum values. 667 for flag, compound, desc in allFlags: 668 if not compound: 669 print >>f, ' "%s",' % flag 670 671 print >>f, ' "All",' 672 for flag, compound, desc in allFlags: 673 if compound: 674 print >>f, ' "%s",' % flag 675 676 print >>f, '};' 677 print >>f 678 print >>f, 'const int Trace::numFlagStrings = %d;' % (len(allFlags) + 1) 679 print >>f 680 681 # 682 # Now define the individual compound flag arrays. There is an array 683 # for each compound flag listing the component base flags. 684 # 685 all = tuple([flag for flag,compound,desc in allFlags if not compound]) 686 print >>f, 'static const Flags AllMap[] = {' 687 for flag, compound, desc in allFlags: 688 if not compound: 689 print >>f, " %s," % flag 690 print >>f, '};' 691 print >>f 692 693 for flag, compound, desc in allFlags: 694 if not compound: 695 continue 696 print >>f, 'static const Flags %sMap[] = {' % flag 697 for flag in compound: 698 print >>f, " %s," % flag 699 print >>f, " (Flags)-1" 700 print >>f, '};' 701 print >>f 702 703 # 704 # Finally the compoundFlags[] array maps the compound flags 705 # to their individual arrays/ 706 # 707 print >>f, 'const Flags *Trace::compoundFlags[] =' 708 print >>f, '{' 709 print >>f, ' AllMap,' 710 for flag, compound, desc in allFlags: 711 if compound: 712 print >>f, ' %sMap,' % flag 713 # file trailer 714 print >>f, '};' 715 716 f.close() 717 718def traceFlagsHH(target, source, env): 719 assert(len(target) == 1) 720 721 f = file(str(target[0]), 'w') 722 723 allFlags = [] 724 for s in source: 725 val = eval(s.get_contents()) 726 allFlags.append(val) 727 728 # file header boilerplate 729 print >>f, ''' 730/* 731 * DO NOT EDIT THIS FILE! 732 * 733 * Automatically generated from traceflags.py 734 */ 735 736#ifndef __BASE_TRACE_FLAGS_HH__ 737#define __BASE_TRACE_FLAGS_HH__ 738 739namespace Trace { 740 741enum Flags {''' 742 743 # Generate the enum. Base flags come first, then compound flags. 744 idx = 0 745 for flag, compound, desc in allFlags: 746 if not compound: 747 print >>f, ' %s = %d,' % (flag, idx) 748 idx += 1 749 750 numBaseFlags = idx 751 print >>f, ' NumFlags = %d,' % idx 752 753 # put a comment in here to separate base from compound flags 754 print >>f, ''' 755// The remaining enum values are *not* valid indices for Trace::flags. 756// They are "compound" flags, which correspond to sets of base 757// flags, and are used by changeFlag.''' 758 759 print >>f, ' All = %d,' % idx 760 idx += 1 761 for flag, compound, desc in allFlags: 762 if compound: 763 print >>f, ' %s = %d,' % (flag, idx) 764 idx += 1 765 766 numCompoundFlags = idx - numBaseFlags 767 print >>f, ' NumCompoundFlags = %d' % numCompoundFlags 768 769 # trailer boilerplate 770 print >>f, '''\ 771}; // enum Flags 772 773// Array of strings for SimpleEnumParam 774extern const char *flagStrings[]; 775extern const int numFlagStrings; 776 777// Array of arraay pointers: for each compound flag, gives the list of 778// base flags to set. Inidividual flag arrays are terminated by -1. 779extern const Flags *compoundFlags[]; 780 781/* namespace Trace */ } 782 783#endif // __BASE_TRACE_FLAGS_HH__ 784''' 785 786 f.close() 787 788flags = [ Value(f) for f in trace_flags ] 789env.Command('base/traceflags.py', flags, traceFlagsPy) 790PySource('m5', 'base/traceflags.py') 791 792env.Command('base/traceflags.hh', flags, traceFlagsHH) 793env.Command('base/traceflags.cc', flags, traceFlagsCC) 794Source('base/traceflags.cc') 795 796# Generate program_info.cc 797def programInfo(target, source, env): 798 def gen_file(target, rev, node, date): 799 pi_stats = file(target, 'w') 800 print >>pi_stats, 'const char *hgRev = "%s:%s";' % (rev, node) 801 print >>pi_stats, 'const char *hgDate = "%s";' % date 802 pi_stats.close() 803 804 target = str(target[0]) 805 scons_dir = str(source[0].get_contents()) 806 try: 807 import mercurial.demandimport, mercurial.hg, mercurial.ui 808 import mercurial.util, mercurial.node 809 if not exists(scons_dir) or not isdir(scons_dir) or \ 810 not exists(joinpath(scons_dir, ".hg")): 811 raise ValueError 812 repo = mercurial.hg.repository(mercurial.ui.ui(), scons_dir) 813 rev = mercurial.node.nullrev + repo.changelog.count() 814 changenode = repo.changelog.node(rev) 815 changes = repo.changelog.read(changenode) 816 date = mercurial.util.datestr(changes[2]) 817 818 gen_file(target, rev, mercurial.node.hex(changenode), date) 819 820 mercurial.demandimport.disable() 821 except ImportError: 822 gen_file(target, "Unknown", "Unknown", "Unknown") 823 824 except: 825 print "in except" 826 gen_file(target, "Unknown", "Unknown", "Unknown") 827 mercurial.demandimport.disable() 828 829env.Command('base/program_info.cc', 830 Value(str(SCons.Node.FS.default_fs.SConstruct_dir)), 831 programInfo) 832 833# embed python files. All .py files that have been indicated by a 834# PySource() call in a SConscript need to be embedded into the M5 835# library. To do that, we compile the file to byte code, marshal the 836# byte code, compress it, and then generate an assembly file that 837# inserts the result into the data section with symbols indicating the 838# beginning, and end (and with the size at the end) 839py_sources_tnodes = {} 840for pysource in py_sources: 841 py_sources_tnodes[pysource.tnode] = pysource 842 843def objectifyPyFile(target, source, env): 844 '''Action function to compile a .py into a code object, marshal 845 it, compress it, and stick it into an asm file so the code appears 846 as just bytes with a label in the data section''' 847 848 src = file(str(source[0]), 'r').read() 849 dst = file(str(target[0]), 'w') 850 851 pysource = py_sources_tnodes[source[0]] 852 compiled = compile(src, pysource.snode.path, 'exec') 853 marshalled = marshal.dumps(compiled) 854 compressed = zlib.compress(marshalled) 855 data = compressed 856 857 # Some C/C++ compilers prepend an underscore to global symbol 858 # names, so if they're going to do that, we need to prepend that 859 # leading underscore to globals in the assembly file. 860 if env['LEADING_UNDERSCORE']: 861 sym = '_' + pysource.symname 862 else: 863 sym = pysource.symname 864 865 step = 16 866 print >>dst, ".data" 867 print >>dst, ".globl %s_beg" % sym 868 print >>dst, ".globl %s_end" % sym 869 print >>dst, "%s_beg:" % sym 870 for i in xrange(0, len(data), step): 871 x = array.array('B', data[i:i+step]) 872 print >>dst, ".byte", ','.join([str(d) for d in x]) 873 print >>dst, "%s_end:" % sym 874 print >>dst, ".long %d" % len(marshalled) 875 876for source in py_sources: 877 env.Command(source.assembly, source.tnode, objectifyPyFile) 878 Source(source.assembly) 879 880# Generate init_python.cc which creates a bunch of EmbeddedPyModule 881# structs that describe the embedded python code. One such struct 882# contains information about the importer that python uses to get at 883# the embedded files, and then there's a list of all of the rest that 884# the importer uses to load the rest on demand. 885py_sources_symbols = {} 886for pysource in py_sources: 887 py_sources_symbols[pysource.symname] = pysource 888def pythonInit(target, source, env): 889 dst = file(str(target[0]), 'w') 890 891 def dump_mod(sym, endchar=','): 892 pysource = py_sources_symbols[sym] 893 print >>dst, ' { "%s",' % pysource.arcname 894 print >>dst, ' "%s",' % pysource.modpath 895 print >>dst, ' %s_beg, %s_end,' % (sym, sym) 896 print >>dst, ' %s_end - %s_beg,' % (sym, sym) 897 print >>dst, ' *(int *)%s_end }%s' % (sym, endchar) 898 899 print >>dst, '#include "sim/init.hh"' 900 901 for sym in source: 902 sym = sym.get_contents() 903 print >>dst, "extern const char %s_beg[], %s_end[];" % (sym, sym) 904 905 print >>dst, "const EmbeddedPyModule embeddedPyImporter = " 906 dump_mod("PyEMB_importer", endchar=';'); 907 print >>dst 908 909 print >>dst, "const EmbeddedPyModule embeddedPyModules[] = {" 910 for i,sym in enumerate(source): 911 sym = sym.get_contents() 912 if sym == "PyEMB_importer": 913 # Skip the importer since we've already exported it 914 continue 915 dump_mod(sym) 916 print >>dst, " { 0, 0, 0, 0, 0, 0 }" 917 print >>dst, "};" 918 919symbols = [Value(s.symname) for s in py_sources] 920env.Command('sim/init_python.cc', symbols, pythonInit) 921Source('sim/init_python.cc') 922 923######################################################################## 924# 925# Define binaries. Each different build type (debug, opt, etc.) gets 926# a slightly different build environment. 927# 928 929# List of constructed environments to pass back to SConstruct 930envList = [] 931 932# This function adds the specified sources to the given build 933# environment, and returns a list of all the corresponding SCons 934# Object nodes (including an extra one for date.cc). We explicitly 935# add the Object nodes so we can set up special dependencies for 936# date.cc. 937def make_objs(sources, env): 938 objs = [env.Object(s) for s in sources] 939 940 # make date.cc depend on all other objects so it always gets 941 # recompiled whenever anything else does 942 date_obj = env.Object('base/date.cc') 943 944 # Make the generation of program_info.cc dependend on all 945 # the other cc files and the compiling of program_info.cc 946 # dependent on all the objects but program_info.o 947 pinfo_obj = env.Object('base/program_info.cc') 948 env.Depends('base/program_info.cc', sources) 949 env.Depends(date_obj, objs) 950 env.Depends(pinfo_obj, objs) 951 objs.extend([date_obj,pinfo_obj]) 952 return objs 953 954# Function to create a new build environment as clone of current 955# environment 'env' with modified object suffix and optional stripped 956# binary. Additional keyword arguments are appended to corresponding 957# build environment vars. 958def makeEnv(label, objsfx, strip = False, **kwargs): 959 newEnv = env.Copy(OBJSUFFIX=objsfx) 960 newEnv.Label = label 961 newEnv.Append(**kwargs) 962 963 swig_env = newEnv.Copy() 964 if env['GCC']: 965 swig_env.Append(CCFLAGS='-Wno-uninitialized') 966 swig_env.Append(CCFLAGS='-Wno-sign-compare') 967 swig_env.Append(CCFLAGS='-Wno-parentheses') 968 swig_objs = [ swig_env.Object(s) for s in cc_swig_sources ] 969 970 # First make a library of everything but main() so other programs can 971 # link against m5. 972 # 973 # SCons doesn't know to append a library suffix when there is a '.' in the 974 # name. Use '_' instead. 975 976 m5lib = newEnv.Library('m5_' + label, 977 make_objs(cc_lib_sources, newEnv) + swig_objs) 978
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