summaryrefslogtreecommitdiff
path: root/engine/SCons/Platform/win32.py
blob: 729348969571bea5b5eb424646eec4d0a08da5b6 (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
"""SCons.Platform.win32

Platform-specific initialization for Win32 systems.

There normally shouldn't be any need to import this module directly.  It
will usually be imported through the generic SCons.Platform.Platform()
selection method.
"""

#
# Copyright (c) 2001 - 2015 The SCons Foundation
#
# 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, sublicense, 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 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
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 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.
#

__revision__ = "src/engine/SCons/Platform/win32.py rel_2.3.5:3347:d31d5a4e74b6 2015/07/31 14:36:10 bdbaddog"

import os
import os.path
import sys
import tempfile

from SCons.Platform.posix import exitvalmap
from SCons.Platform import TempFileMunge
import SCons.Util

try:
    import msvcrt
    import win32api
    import win32con

    msvcrt.get_osfhandle
    win32api.SetHandleInformation
    win32con.HANDLE_FLAG_INHERIT
except ImportError:
    parallel_msg = \
        "you do not seem to have the pywin32 extensions installed;\n" + \
        "\tparallel (-j) builds may not work reliably with open Python files."
except AttributeError:
    parallel_msg = \
        "your pywin32 extensions do not support file handle operations;\n" + \
        "\tparallel (-j) builds may not work reliably with open Python files."
else:
    parallel_msg = None

    import builtins

    _builtin_file = builtins.file
    _builtin_open = builtins.open

    class _scons_file(_builtin_file):
        def __init__(self, *args, **kw):
            _builtin_file.__init__(self, *args, **kw)
            win32api.SetHandleInformation(msvcrt.get_osfhandle(self.fileno()),
                win32con.HANDLE_FLAG_INHERIT, 0)

    def _scons_open(*args, **kw):
        fp = _builtin_open(*args, **kw)
        win32api.SetHandleInformation(msvcrt.get_osfhandle(fp.fileno()),
                                      win32con.HANDLE_FLAG_INHERIT,
                                      0)
        return fp

    builtins.file = _scons_file
    builtins.open = _scons_open

try:
    import threading
    spawn_lock = threading.Lock()
    
    # This locked version of spawnve works around a Windows
    # MSVCRT bug, because its spawnve is not thread-safe.
    # Without this, python can randomly crash while using -jN.
    # See the python bug at http://bugs.python.org/issue6476
    # and SCons issue at
    # http://scons.tigris.org/issues/show_bug.cgi?id=2449
    def spawnve(mode, file, args, env):
        spawn_lock.acquire()
        try:
            if mode == os.P_WAIT:
                ret = os.spawnve(os.P_NOWAIT, file, args, env)
            else:
                ret = os.spawnve(mode, file, args, env)
        finally:
            spawn_lock.release()
        if mode == os.P_WAIT:
            pid, status = os.waitpid(ret, 0)
            ret = status >> 8
        return ret
except ImportError:
    # Use the unsafe method of spawnve.
    # Please, don't try to optimize this try-except block
    # away by assuming that the threading module is always present.
    # In the test test/option-j.py we intentionally call SCons with
    # a fake threading.py that raises an import exception right away,
    # simulating a non-existent package.
    def spawnve(mode, file, args, env):
        return os.spawnve(mode, file, args, env)
    
# The upshot of all this is that, if you are using Python 1.5.2,
# you had better have cmd or command.com in your PATH when you run
# scons.

def piped_spawn(sh, escape, cmd, args, env, stdout, stderr):
    # There is no direct way to do that in python. What we do
    # here should work for most cases:
    #   In case stdout (stderr) is not redirected to a file,
    #   we redirect it into a temporary file tmpFileStdout
    #   (tmpFileStderr) and copy the contents of this file
    #   to stdout (stderr) given in the argument
    if not sh:
        sys.stderr.write("scons: Could not find command interpreter, is it in your PATH?\n")
        return 127
    else:
        # one temporary file for stdout and stderr
        tmpFileStdout = os.path.normpath(tempfile.mktemp())
        tmpFileStderr = os.path.normpath(tempfile.mktemp())

        # check if output is redirected
        stdoutRedirected = 0
        stderrRedirected = 0
        for arg in args:
            # are there more possibilities to redirect stdout ?
            if (arg.find( ">", 0, 1 ) != -1 or
                arg.find( "1>", 0, 2 ) != -1):
                stdoutRedirected = 1
            # are there more possibilities to redirect stderr ?
            if arg.find( "2>", 0, 2 ) != -1:
                stderrRedirected = 1

        # redirect output of non-redirected streams to our tempfiles
        if stdoutRedirected == 0:
            args.append(">" + str(tmpFileStdout))
        if stderrRedirected == 0:
            args.append("2>" + str(tmpFileStderr))

        # actually do the spawn
        try:
            args = [sh, '/C', escape(' '.join(args)) ]
            ret = spawnve(os.P_WAIT, sh, args, env)
        except OSError, e:
            # catch any error
            try:
                ret = exitvalmap[e[0]]
            except KeyError:
                sys.stderr.write("scons: unknown OSError exception code %d - %s: %s\n" % (e[0], cmd, e[1]))
            if stderr is not None:
                stderr.write("scons: %s: %s\n" % (cmd, e[1]))
        # copy child output from tempfiles to our streams
        # and do clean up stuff
        if stdout is not None and stdoutRedirected == 0:
            try:
                stdout.write(open( tmpFileStdout, "r" ).read())
                os.remove( tmpFileStdout )
            except (IOError, OSError):
                pass

        if stderr is not None and stderrRedirected == 0:
            try:
                stderr.write(open( tmpFileStderr, "r" ).read())
                os.remove( tmpFileStderr )
            except (IOError, OSError):
                pass
        return ret

def exec_spawn(l, env):
    try:
        result = spawnve(os.P_WAIT, l[0], l, env)
    except OSError, e:
        try:
            result = exitvalmap[e[0]]
            sys.stderr.write("scons: %s: %s\n" % (l[0], e[1]))
        except KeyError:
            result = 127
            if len(l) > 2:
                if len(l[2]) < 1000:
                    command = ' '.join(l[0:3])
                else:
                    command = l[0]
            else:
                command = l[0]
            sys.stderr.write("scons: unknown OSError exception code %d - '%s': %s\n" % (e[0], command, e[1]))
    return result

def spawn(sh, escape, cmd, args, env):
    if not sh:
        sys.stderr.write("scons: Could not find command interpreter, is it in your PATH?\n")
        return 127
    return exec_spawn([sh, '/C', escape(' '.join(args))], env)

# Windows does not allow special characters in file names anyway, so no
# need for a complex escape function, we will just quote the arg, except
# that "cmd /c" requires that if an argument ends with a backslash it
# needs to be escaped so as not to interfere with closing double quote
# that we add.
def escape(x):
    if x[-1] == '\\':
        x = x + '\\'
    return '"' + x + '"'

# Get the windows system directory name
_system_root = None

def get_system_root():
    global _system_root
    if _system_root is not None:
        return _system_root

    # A resonable default if we can't read the registry
    val = os.environ.get('SystemRoot', "C:\\WINDOWS")

    if SCons.Util.can_read_reg:
        try:
            # Look for Windows NT system root
            k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
                                      'Software\\Microsoft\\Windows NT\\CurrentVersion')
            val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
        except SCons.Util.RegError:
            try:
                # Okay, try the Windows 9x system root
                k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
                                          'Software\\Microsoft\\Windows\\CurrentVersion')
                val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
            except KeyboardInterrupt:
                raise
            except:
                pass
    _system_root = val
    return val

# Get the location of the program files directory
def get_program_files_dir():
    # Now see if we can look in the registry...
    val = ''
    if SCons.Util.can_read_reg:
        try:
            # Look for Windows Program Files directory
            k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
                                      'Software\\Microsoft\\Windows\\CurrentVersion')
            val, tok = SCons.Util.RegQueryValueEx(k, 'ProgramFilesDir')
        except SCons.Util.RegError:
            val = ''
            pass

    if val == '':
        # A reasonable default if we can't read the registry
        # (Actually, it's pretty reasonable even if we can :-)
        val = os.path.join(os.path.dirname(get_system_root()),"Program Files")
        
    return val



# Determine which windows CPU were running on.
class ArchDefinition(object):
    """
    A class for defining architecture-specific settings and logic.
    """
    def __init__(self, arch, synonyms=[]):
        self.arch = arch
        self.synonyms = synonyms

SupportedArchitectureList = [
    ArchDefinition(
        'x86',
        ['i386', 'i486', 'i586', 'i686'],
    ),

    ArchDefinition(
        'x86_64',
        ['AMD64', 'amd64', 'em64t', 'EM64T', 'x86_64'],
    ),

    ArchDefinition(
        'ia64',
        ['IA64'],
    ),
]

SupportedArchitectureMap = {}
for a in SupportedArchitectureList:
    SupportedArchitectureMap[a.arch] = a
    for s in a.synonyms:
        SupportedArchitectureMap[s] = a

def get_architecture(arch=None):
    """Returns the definition for the specified architecture string.

    If no string is specified, the system default is returned (as defined
    by the PROCESSOR_ARCHITEW6432 or PROCESSOR_ARCHITECTURE environment
    variables).
    """
    if arch is None:
        arch = os.environ.get('PROCESSOR_ARCHITEW6432')
        if not arch:
            arch = os.environ.get('PROCESSOR_ARCHITECTURE')
    return SupportedArchitectureMap.get(arch, ArchDefinition('', ['']))

def generate(env):
    # Attempt to find cmd.exe (for WinNT/2k/XP) or
    # command.com for Win9x
    cmd_interp = ''
    # First see if we can look in the registry...
    if SCons.Util.can_read_reg:
        try:
            # Look for Windows NT system root
            k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
                                          'Software\\Microsoft\\Windows NT\\CurrentVersion')
            val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
            cmd_interp = os.path.join(val, 'System32\\cmd.exe')
        except SCons.Util.RegError:
            try:
                # Okay, try the Windows 9x system root
                k=SCons.Util.RegOpenKeyEx(SCons.Util.hkey_mod.HKEY_LOCAL_MACHINE,
                                              'Software\\Microsoft\\Windows\\CurrentVersion')
                val, tok = SCons.Util.RegQueryValueEx(k, 'SystemRoot')
                cmd_interp = os.path.join(val, 'command.com')
            except KeyboardInterrupt:
                raise
            except:
                pass

    # For the special case of not having access to the registry, we
    # use a temporary path and pathext to attempt to find the command
    # interpreter.  If we fail, we try to find the interpreter through
    # the env's PATH.  The problem with that is that it might not
    # contain an ENV and a PATH.
    if not cmd_interp:
        systemroot = get_system_root()
        tmp_path = systemroot + os.pathsep + \
                   os.path.join(systemroot,'System32')
        tmp_pathext = '.com;.exe;.bat;.cmd'
        if 'PATHEXT' in os.environ:
            tmp_pathext = os.environ['PATHEXT'] 
        cmd_interp = SCons.Util.WhereIs('cmd', tmp_path, tmp_pathext)
        if not cmd_interp:
            cmd_interp = SCons.Util.WhereIs('command', tmp_path, tmp_pathext)

    if not cmd_interp:
        cmd_interp = env.Detect('cmd')
        if not cmd_interp:
            cmd_interp = env.Detect('command')

    
    if 'ENV' not in env:
        env['ENV']        = {}

    # Import things from the external environment to the construction
    # environment's ENV.  This is a potential slippery slope, because we
    # *don't* want to make builds dependent on the user's environment by
    # default.  We're doing this for SystemRoot, though, because it's
    # needed for anything that uses sockets, and seldom changes, and
    # for SystemDrive because it's related.
    #
    # Weigh the impact carefully before adding other variables to this list.
    import_env = [ 'SystemDrive', 'SystemRoot', 'TEMP', 'TMP' ]
    for var in import_env:
        v = os.environ.get(var)
        if v:
            env['ENV'][var] = v

    if 'COMSPEC' not in env['ENV']:
        v = os.environ.get("COMSPEC")
        if v:
            env['ENV']['COMSPEC'] = v

    env.AppendENVPath('PATH', get_system_root() + '\System32')

    env['ENV']['PATHEXT'] = '.COM;.EXE;.BAT;.CMD'
    env['OBJPREFIX']      = ''
    env['OBJSUFFIX']      = '.obj'
    env['SHOBJPREFIX']    = '$OBJPREFIX'
    env['SHOBJSUFFIX']    = '$OBJSUFFIX'
    env['PROGPREFIX']     = ''
    env['PROGSUFFIX']     = '.exe'
    env['LIBPREFIX']      = ''
    env['LIBSUFFIX']      = '.lib'
    env['SHLIBPREFIX']    = ''
    env['SHLIBSUFFIX']    = '.dll'
    env['LIBPREFIXES']    = [ '$LIBPREFIX' ]
    env['LIBSUFFIXES']    = [ '$LIBSUFFIX' ]
    env['PSPAWN']         = piped_spawn
    env['SPAWN']          = spawn
    env['SHELL']          = cmd_interp
    env['TEMPFILE']       = TempFileMunge
    env['TEMPFILEPREFIX'] = '@'
    env['MAXLINELENGTH']  = 2048
    env['ESCAPE']         = escape
    
    env['HOST_OS']        = 'win32'
    env['HOST_ARCH']      = get_architecture().arch
    

# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4: