summaryrefslogtreecommitdiffstats
path: root/scons/gallium.py
blob: a6d69fd16d5342cee065173a25975c2b9c8f7dd0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
"""gallium

Frontend-tool for Gallium3D architecture.

"""

#
# Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
# All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sub license, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice (including the
# next paragraph) shall be included in all copies or substantial portions
# of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
# IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#


import os
import os.path
import re

import SCons.Action
import SCons.Builder
import SCons.Scanner

import fixes


def quietCommandLines(env):
    # Quiet command lines
    # See also http://www.scons.org/wiki/HidingCommandLinesInOutput
    env['ASCOMSTR'] = "  Assembling $SOURCE ..."
    env['ASPPCOMSTR'] = "  Assembling $SOURCE ..."
    env['CCCOMSTR'] = "  Compiling $SOURCE ..."
    env['SHCCCOMSTR'] = "  Compiling $SOURCE ..."
    env['CXXCOMSTR'] = "  Compiling $SOURCE ..."
    env['SHCXXCOMSTR'] = "  Compiling $SOURCE ..."
    env['ARCOMSTR'] = "  Archiving $TARGET ..."
    env['RANLIBCOMSTR'] = "  Indexing $TARGET ..."
    env['LINKCOMSTR'] = "  Linking $TARGET ..."
    env['SHLINKCOMSTR'] = "  Linking $TARGET ..."
    env['LDMODULECOMSTR'] = "  Linking $TARGET ..."
    env['SWIGCOMSTR'] = "  Generating $TARGET ..."


def createConvenienceLibBuilder(env):
    """This is a utility function that creates the ConvenienceLibrary
    Builder in an Environment if it is not there already.

    If it is already there, we return the existing one.

    Based on the stock StaticLibrary and SharedLibrary builders.
    """

    try:
        convenience_lib = env['BUILDERS']['ConvenienceLibrary']
    except KeyError:
        action_list = [ SCons.Action.Action("$ARCOM", "$ARCOMSTR") ]
        if env.Detect('ranlib'):
            ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")
            action_list.append(ranlib_action)

        convenience_lib = SCons.Builder.Builder(action = action_list,
                                  emitter = '$LIBEMITTER',
                                  prefix = '$LIBPREFIX',
                                  suffix = '$LIBSUFFIX',
                                  src_suffix = '$SHOBJSUFFIX',
                                  src_builder = 'SharedObject')
        env['BUILDERS']['ConvenienceLibrary'] = convenience_lib

    return convenience_lib


# TODO: handle import statements with multiple modules
# TODO: handle from import statements
import_re = re.compile(r'^import\s+(\S+)$', re.M)

def python_scan(node, env, path):
    # http://www.scons.org/doc/0.98.5/HTML/scons-user/c2781.html#AEN2789
    contents = node.get_contents()
    source_dir = node.get_dir()
    imports = import_re.findall(contents)
    results = []
    for imp in imports:
        for dir in path:
            file = os.path.join(str(dir), imp.replace('.', os.sep) + '.py')
            if os.path.exists(file):
                results.append(env.File(file))
                break
            file = os.path.join(str(dir), imp.replace('.', os.sep), '__init__.py')
            if os.path.exists(file):
                results.append(env.File(file))
                break
    return results

python_scanner = SCons.Scanner.Scanner(function = python_scan, skeys = ['.py'])


def code_generate(env, script, target, source, command):
    """Method to simplify code generation via python scripts.

    http://www.scons.org/wiki/UsingCodeGenerators
    http://www.scons.org/doc/0.98.5/HTML/scons-user/c2768.html
    """

    # We're generating code using Python scripts, so we have to be
    # careful with our scons elements.  This entry represents
    # the generator file *in the source directory*.
    script_src = env.File(script).srcnode()

    # This command creates generated code *in the build directory*.
    command = command.replace('$SCRIPT', script_src.path)
    code = env.Command(target, source, command)

    # Explicitly mark that the generated code depends on the generator,
    # and on implicitly imported python modules
    path = (script_src.get_dir(),)
    deps = [script_src]
    deps += script_src.get_implicit_deps(env, python_scanner, path)
    env.Depends(code, deps)

    # Running the Python script causes .pyc files to be generated in the
    # source directory.  When we clean up, they should go too. So add side
    # effects for .pyc files
    for dep in deps:
        pyc = env.File(str(dep) + 'c')
        env.SideEffect(pyc, code)

    return code


def createCodeGenerateMethod(env):
    env.Append(SCANNERS = python_scanner)
    env.AddMethod(code_generate, 'CodeGenerate')


def symlink(target, source, env):
    target = str(target[0])
    source = str(source[0])
    if os.path.islink(target) or os.path.exists(target):
        os.remove(target)
    os.symlink(os.path.basename(source), target)

def install_shared_library(env, source, version = ()):
    source = str(source[0])
    version = tuple(map(str, version))
    target_dir =  os.path.join(env.Dir('#.').srcnode().abspath, env['build'], 'lib')
    target_name = '.'.join((str(source),) + version)
    last = env.InstallAs(os.path.join(target_dir, target_name), source)
    while len(version):
        version = version[:-1]
        target_name = '.'.join((str(source),) + version)
        action = SCons.Action.Action(symlink, "$TARGET -> $SOURCE")
        last = env.Command(os.path.join(target_dir, target_name), last, action) 

def createInstallMethods(env):
    env.AddMethod(install_shared_library, 'InstallSharedLibrary')


def num_jobs():
    try:
        return int(os.environ['NUMBER_OF_PROCESSORS'])
    except (ValueError, KeyError):
        pass

    try:
        return os.sysconf('SC_NPROCESSORS_ONLN')
    except (ValueError, OSError, AttributeError):
        pass

    try:
        return int(os.popen2("sysctl -n hw.ncpu")[1].read())
    except ValueError:
        pass

    return 1


def generate(env):
    """Common environment generation code"""

    if env.get('quiet', True):
        quietCommandLines(env)

    # Toolchain
    platform = env['platform']
    if env['toolchain'] == 'default':
        if platform == 'winddk':
            env['toolchain'] = 'winddk'
        elif platform == 'wince':
            env['toolchain'] = 'wcesdk'
    env.Tool(env['toolchain'])

    env['gcc'] = 'gcc' in os.path.basename(env['CC']).split('-')
    env['msvc'] = env['CC'] == 'cl'

    # shortcuts
    debug = env['debug']
    machine = env['machine']
    platform = env['platform']
    x86 = env['machine'] == 'x86'
    ppc = env['machine'] == 'ppc'
    gcc = env['gcc']
    msvc = env['msvc']

    # Put build output in a separate dir, which depends on the current
    # configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
    build_topdir = 'build'
    build_subdir = env['platform']
    if env['llvm']:
        build_subdir += "-llvm"
    if env['machine'] != 'generic':
        build_subdir += '-' + env['machine']
    if env['debug']:
        build_subdir += "-debug"
    if env['profile']:
        build_subdir += "-profile"
    build_dir = os.path.join(build_topdir, build_subdir)
    # Place the .sconsign file in the build dir too, to avoid issues with
    # different scons versions building the same source file
    env['build'] = build_dir
    env.SConsignFile(os.path.join(build_dir, '.sconsign'))
    env.CacheDir('build/cache')

    # Parallel build
    if env.GetOption('num_jobs') <= 1:
        env.SetOption('num_jobs', num_jobs())

    # C preprocessor options
    cppdefines = []
    if debug:
        cppdefines += ['DEBUG']
    else:
        cppdefines += ['NDEBUG']
    if env['profile']:
        cppdefines += ['PROFILE']
    if platform == 'windows':
        cppdefines += [
            'WIN32',
            '_WINDOWS',
            #'_UNICODE',
            #'UNICODE',
            ('_WIN32_WINNT', '0x0501'), # minimum required OS version
            ('WINVER', '0x0501'),
            # http://msdn2.microsoft.com/en-us/library/6dwk3a1z.aspx,
            'WIN32_LEAN_AND_MEAN',
        ]
        if msvc and env['toolchain'] != 'winddk':
            cppdefines += [
                'VC_EXTRALEAN',
                '_USE_MATH_DEFINES',
                '_CRT_SECURE_NO_WARNINGS',
                '_CRT_SECURE_NO_DEPRECATE',
                '_SCL_SECURE_NO_WARNINGS',
                '_SCL_SECURE_NO_DEPRECATE',
            ]
        if debug:
            cppdefines += ['_DEBUG']
    if env['toolchain'] == 'winddk':
        # Mimic WINDDK's builtin flags. See also:
        # - WINDDK's bin/makefile.new i386mk.inc for more info.
        # - buildchk_wxp_x86.log files, generated by the WINDDK's build
        # - http://alter.org.ua/docs/nt_kernel/vc8_proj/
        if machine == 'x86':
            cppdefines += ['_X86_', 'i386']
        if machine == 'x86_64':
            cppdefines += ['_AMD64_', 'AMD64']
    if platform == 'winddk':
        cppdefines += [
            'STD_CALL',
            ('CONDITION_HANDLING', '1'),
            ('NT_INST', '0'),
            ('WIN32', '100'),
            ('_NT1X_', '100'),
            ('WINNT', '1'),
            ('_WIN32_WINNT', '0x0501'), # minimum required OS version
            ('WINVER', '0x0501'),
            ('_WIN32_IE', '0x0603'),
            ('WIN32_LEAN_AND_MEAN', '1'),
            ('DEVL', '1'),
            ('__BUILDMACHINE__', 'WinDDK'),
            ('FPO', '0'),
        ]
        if debug:
            cppdefines += [('DBG', 1)]
    if platform == 'wince':
        cppdefines += [
            '_CRT_SECURE_NO_DEPRECATE',
            '_USE_32BIT_TIME_T',
            'UNICODE',
            '_UNICODE',
            ('UNDER_CE', '600'),
            ('_WIN32_WCE', '0x600'),
            'WINCEOEM',
            'WINCEINTERNAL',
            'WIN32',
            'STRICT',
            'x86',
            '_X86_',
            'INTERNATIONAL',
            ('INTLMSG_CODEPAGE', '1252'),
        ]
    if platform == 'windows':
        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_USER']
    if platform == 'winddk':
        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_DISPLAY']
    if platform == 'wince':
        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE']
        cppdefines += ['PIPE_SUBSYSTEM_WINDOWS_CE_OGL']
    env.Append(CPPDEFINES = cppdefines)

    # C compiler options
    cflags = [] # C
    cxxflags = [] # C++
    ccflags = [] # C & C++
    if gcc:
        if debug:
            ccflags += ['-O0', '-g3']
        elif env['CCVERSION'].startswith('4.2.'):
            # gcc 4.2.x optimizer is broken
            print "warning: gcc 4.2.x optimizer is broken -- disabling optimizations"
            ccflags += ['-O0', '-g3']
        else:
            ccflags += ['-O3', '-g3']
        if env['profile']:
            # See http://code.google.com/p/jrfonseca/wiki/Gprof2Dot#Which_options_should_I_pass_to_gcc_when_compiling_for_profiling?
            ccflags += [
                '-fno-omit-frame-pointer',
                '-fno-optimize-sibling-calls',
            ]
        if env['machine'] == 'x86':
            ccflags += [
                '-m32',
                #'-march=pentium4',
                #'-mfpmath=sse',
            ]
            if platform != 'windows':
                # XXX: -mstackrealign causes stack corruption on MinGW. Ditto
                # for -mincoming-stack-boundary=2.  Still enable it on other
                # platforms for now, but we can't rely on it for cross platform
                # code. We have to use __attribute__((force_align_arg_pointer))
                # instead.
                ccflags += [
                    '-mmmx', '-msse', '-msse2', # enable SIMD intrinsics
                    '-mstackrealign', # ensure stack is aligned
                ]
        if env['machine'] == 'x86_64':
            ccflags += ['-m64']
        # See also:
        # - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
        ccflags += [
            '-Wall',
            '-Wmissing-field-initializers',
            '-Wpointer-arith',
            '-Wno-long-long',
            '-ffast-math',
            '-fmessage-length=0', # be nice to Eclipse
        ]
        cflags += [
            '-Werror=declaration-after-statement',
            '-Wmissing-prototypes',
            '-std=gnu99',
        ]
    if msvc:
        # See also:
        # - http://msdn.microsoft.com/en-us/library/19z1t1wy.aspx
        # - cl /?
        if debug:
            ccflags += [
              '/Od', # disable optimizations
              '/Oi', # enable intrinsic functions
              '/Oy-', # disable frame pointer omission
              '/GL-', # disable whole program optimization
            ]
        else:
            ccflags += [
                '/O2', # optimize for speed
                #'/fp:fast', # fast floating point 
            ]
        if env['profile']:
            ccflags += [
                '/Gh', # enable _penter hook function
                '/GH', # enable _pexit hook function
            ]
        ccflags += [
            '/W3', # warning level
            #'/Wp64', # enable 64 bit porting warnings
        ]
        if env['machine'] == 'x86':
            ccflags += [
                #'/QIfist', # Suppress _ftol
                #'/arch:SSE2', # use the SSE2 instructions
            ]
        if platform == 'windows':
            ccflags += [
                # TODO
            ]
        if platform == 'winddk':
            ccflags += [
                '/Zl', # omit default library name in .OBJ
                '/Zp8', # 8bytes struct member alignment
                '/Gy', # separate functions for linker
                '/Gm-', # disable minimal rebuild
                '/WX', # treat warnings as errors
                '/Gz', # __stdcall Calling convention
                '/GX-', # disable C++ EH
                '/GR-', # disable C++ RTTI
                '/GF', # enable read-only string pooling
                '/G6', # optimize for PPro, P-II, P-III
                '/Ze', # enable extensions
                '/Gi-', # disable incremental compilation
                '/QIfdiv-', # disable Pentium FDIV fix
                '/hotpatch', # prepares an image for hotpatching.
                #'/Z7', #enable old-style debug info
            ]
        if platform == 'wince':
            # See also C:\WINCE600\public\common\oak\misc\makefile.def
            ccflags += [
                '/Zl', # omit default library name in .OBJ
                '/GF', # enable read-only string pooling
                '/GR-', # disable C++ RTTI
                '/GS', # enable security checks
                # Allow disabling language conformance to maintain backward compat
                #'/Zc:wchar_t-', # don't force wchar_t as native type, instead of typedef
                #'/Zc:forScope-', # don't enforce Standard C++ for scoping rules
                #'/wd4867',
                #'/wd4430',
                #'/MT',
                #'/U_MT',
            ]
        # Automatic pdb generation
        # See http://scons.tigris.org/issues/show_bug.cgi?id=1656
        env.EnsureSConsVersion(0, 98, 0)
        env['PDB'] = '${TARGET.base}.pdb'
    env.Append(CCFLAGS = ccflags)
    env.Append(CFLAGS = cflags)
    env.Append(CXXFLAGS = cxxflags)

    if env['platform'] == 'windows' and msvc:
        # Choose the appropriate MSVC CRT
        # http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
        if env['debug']:
            env.Append(CCFLAGS = ['/MTd'])
            env.Append(SHCCFLAGS = ['/LDd'])
        else:
            env.Append(CCFLAGS = ['/MT'])
            env.Append(SHCCFLAGS = ['/LD'])
    
    # Assembler options
    if gcc:
        if env['machine'] == 'x86':
            env.Append(ASFLAGS = ['-m32'])
        if env['machine'] == 'x86_64':
            env.Append(ASFLAGS = ['-m64'])

    # Linker options
    linkflags = []
    shlinkflags = []
    if gcc:
        if env['machine'] == 'x86':
            linkflags += ['-m32']
        if env['machine'] == 'x86_64':
            linkflags += ['-m64']
        shlinkflags += [
            '-Wl,-Bsymbolic',
        ]
        # Handle circular dependencies in the libraries
        env['_LIBFLAGS'] = '-Wl,--start-group ' + env['_LIBFLAGS'] + ' -Wl,--end-group'
    if platform == 'windows' and msvc:
        # See also:
        # - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
        linkflags += [
            '/fixed:no',
            '/incremental:no',
        ]
    if platform == 'winddk':
        linkflags += [
            '/merge:_PAGE=PAGE',
            '/merge:_TEXT=.text',
            '/section:INIT,d',
            '/opt:ref',
            '/opt:icf',
            '/ignore:4198,4010,4037,4039,4065,4070,4078,4087,4089,4221',
            '/incremental:no',
            '/fullbuild',
            '/release',
            '/nodefaultlib',
            '/wx',
            '/debug',
            '/debugtype:cv',
            '/version:5.1',
            '/osversion:5.1',
            '/functionpadmin:5',
            '/safeseh',
            '/pdbcompress',
            '/stack:0x40000,0x1000',
            '/driver',
            '/align:0x80',
            '/subsystem:native,5.01',
            '/base:0x10000',

            '/entry:DrvEnableDriver',
        ]
        if env['debug'] or env['profile']:
            linkflags += [
                '/MAP', # http://msdn.microsoft.com/en-us/library/k7xkk3e2.aspx
            ]
    if platform == 'wince':
        linkflags += [
            '/nodefaultlib',
            #'/incremental:no',
            #'/fullbuild',
            '/entry:_DllMainCRTStartup',
        ]
    env.Append(LINKFLAGS = linkflags)
    env.Append(SHLINKFLAGS = shlinkflags)

    # Default libs
    env.Append(LIBS = [])

    # Custom builders and methods
    createConvenienceLibBuilder(env)
    createCodeGenerateMethod(env)
    createInstallMethods(env)

    # for debugging
    #print env.Dump()


def exists(env):
    return 1