summaryrefslogtreecommitdiff
path: root/engine/SCons/Tool/MSCommon/vc.py
blob: a190b8e928708e3369d8d09177e500604132511d (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
#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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.
#

# TODO:
#   * supported arch for versions: for old versions of batch file without
#     argument, giving bogus argument cannot be detected, so we have to hardcode
#     this here
#   * print warning when msvc version specified but not found
#   * find out why warning do not print
#   * test on 64 bits XP +  VS 2005 (and VS 6 if possible)
#   * SDK
#   * Assembly
__revision__ = "src/engine/SCons/Tool/MSCommon/vc.py 4629 2010/01/17 22:23:21 scons"

__doc__ = """Module for Visual C/C++ detection and configuration.
"""
import SCons.compat

import os
import platform

import SCons.Warnings

import common

debug = common.debug

class VisualCException(Exception):
    pass

class UnsupportedVersion(VisualCException):
    pass

class UnsupportedArch(VisualCException):
    pass

class MissingConfiguration(VisualCException):
    pass

class NoVersionFound(VisualCException):
    pass

class BatchFileExecutionError(VisualCException):
    pass

# Dict to 'canonalize' the arch
_ARCH_TO_CANONICAL = {
    "x86": "x86",
    "amd64": "amd64",
    "i386": "x86",
    "emt64": "amd64",
    "x86_64": "amd64",
    "itanium": "ia64",
    "ia64": "ia64",
}

# Given a (host, target) tuple, return the argument for the bat file. Both host
# and targets should be canonalized.
_HOST_TARGET_ARCH_TO_BAT_ARCH = {
    ("x86", "x86"): "x86",
    ("x86", "amd64"): "x86_amd64",
    ("amd64", "amd64"): "amd64",
    ("amd64", "x86"): "x86",
    ("x86", "ia64"): "x86_ia64"
}

def get_host_target(env):
    host_platform = env.get('HOST_ARCH')
    if not host_platform:
        host_platform = platform.machine()
        # TODO(2.5):  the native Python platform.machine() function returns
        # '' on all Python versions before 2.6, after which it also uses
        # PROCESSOR_ARCHITECTURE.
        if not host_platform:
            host_platform = os.environ.get('PROCESSOR_ARCHITECTURE', '')
    target_platform = env.get('TARGET_ARCH')
    if not target_platform:
        target_platform = host_platform

    try:
        host = _ARCH_TO_CANONICAL[host_platform]
    except KeyError, e:
        msg = "Unrecognized host architecture %s"
        raise ValueError(msg % repr(host_platform))

    try:
        target = _ARCH_TO_CANONICAL[target_platform]
    except KeyError, e:
        raise ValueError("Unrecognized target architecture %s" % target_platform)

    return (host, target)

_VCVER = ["10.0", "9.0", "8.0", "7.1", "7.0", "6.0"]

_VCVER_TO_PRODUCT_DIR = {
        '10.0': [
            r'Microsoft\VisualStudio\10.0\Setup\VC\ProductDir'],
        '9.0': [
            r'Microsoft\VisualStudio\9.0\Setup\VC\ProductDir',
            r'Microsoft\VCExpress\9.0\Setup\VC\ProductDir'],
        '8.0': [
            r'Microsoft\VisualStudio\8.0\Setup\VC\ProductDir',
            r'Microsoft\VCExpress\8.0\Setup\VC\ProductDir'],
        '7.1': [
            r'Microsoft\VisualStudio\7.1\Setup\VC\ProductDir'],
        '7.0': [
            r'Microsoft\VisualStudio\7.0\Setup\VC\ProductDir'],
        '6.0': [
            r'Microsoft\VisualStudio\6.0\Setup\Microsoft Visual C++\ProductDir']
}

def msvc_version_to_maj_min(msvc_version):
    t = msvc_version.split(".")
    if not len(t) == 2:
        raise ValueError("Unrecognized version %s" % msvc_version)
    try:
        maj = int(t[0])
        min = int(t[1])
        return maj, min
    except ValueError, e:
        raise ValueError("Unrecognized version %s" % msvc_version)

def is_host_target_supported(host_target, msvc_version):
    """Return True if the given (host, target) tuple is supported given the
    msvc version.

    Parameters
    ----------
    host_target: tuple
        tuple of (canonalized) host-target, e.g. ("x86", "amd64") for cross
        compilation from 32 bits windows to 64 bits.
    msvc_version: str
        msvc version (major.minor, e.g. 10.0)

    Note
    ----
    This only check whether a given version *may* support the given (host,
    target), not that the toolchain is actually present on the machine.
    """
    # We assume that any Visual Studio version supports x86 as a target
    if host_target[1] != "x86":
        maj, min = msvc_version_to_maj_min(msvc_version)
        if maj < 8:
            return False

    return True

def find_vc_pdir(msvc_version):
    """Try to find the product directory for the given
    version.

    Note
    ----
    If for some reason the requested version could not be found, an
    exception which inherits from VisualCException will be raised."""
    root = 'Software\\'
    if common.is_win64():
        root = root + 'Wow6432Node\\'
    try:
        hkeys = _VCVER_TO_PRODUCT_DIR[msvc_version]
    except KeyError:
        debug("Unknown version of MSVC: %s" % msvc_version)
        raise UnsupportedVersion("Unknown version %s" % msvc_version)

    for key in hkeys:
        key = root + key
        try:
            comps = common.read_reg(key)
        except WindowsError, e:
            debug('find_vc_dir(): no VC registry key %s' % repr(key))
        else:
            debug('find_vc_dir(): found VC in registry: %s' % comps)
            if os.path.exists(comps):
                return comps
            else:
                debug('find_vc_dir(): reg says dir is %s, but it does not exist. (ignoring)'\
                          % comps)
                raise MissingConfiguration("registry dir %s not found on the filesystem" % comps)
    return None

def find_batch_file(msvc_version):
    pdir = find_vc_pdir(msvc_version)
    if pdir is None:
        raise NoVersionFound("No version of Visual Studio found")

    vernum = float(msvc_version)
    if 7 <= vernum < 8:
        pdir = os.path.join(pdir, os.pardir, "Common7", "Tools")
        batfilename = os.path.join(pdir, "vsvars32.bat")
    elif vernum < 7:
        pdir = os.path.join(pdir, "Bin")
        batfilename = os.path.join(pdir, "vcvars32.bat")
    else: # >= 8
        batfilename = os.path.join(pdir, "vcvarsall.bat")

    if os.path.exists(batfilename):
        return batfilename
    else:
        debug("Not found: %s" % batfilename)
        return None

__INSTALLED_VCS_RUN = None

def cached_get_installed_vcs():
    global __INSTALLED_VCS_RUN

    if __INSTALLED_VCS_RUN is None:
        ret = get_installed_vcs()
        __INSTALLED_VCS_RUN = ret

    return __INSTALLED_VCS_RUN

def get_installed_vcs():
    installed_versions = []
    for ver in _VCVER:
        debug('trying to find VC %s' % ver)
        try:
            if find_vc_pdir(ver):
                debug('found VC %s' % ver)
                installed_versions.append(ver)
            else:
                debug('find_vc_pdir return None for ver %s' % ver)
        except VisualCException, e:
            debug('did not find VC %s: caught exception %s' % (ver, str(e)))
    return installed_versions

def reset_installed_vcs():
    """Make it try again to find VC.  This is just for the tests."""
    __INSTALLED_VCS_RUN = None

def script_env(script, args=None):
    stdout = common.get_output(script, args)
    # Stupid batch files do not set return code: we take a look at the
    # beginning of the output for an error message instead
    olines = stdout.splitlines()
    if olines[0].startswith("The specified configuration type is missing"):
        raise BatchFileExecutionError("\n".join(olines[:2]))

    return common.parse_output(stdout)

def get_default_version(env):
    debug('get_default_version()')

    msvc_version = env.get('MSVC_VERSION')
    msvs_version = env.get('MSVS_VERSION')

    if msvs_version and not msvc_version:
        SCons.Warnings.warn(
                SCons.Warnings.DeprecatedWarning,
                "MSVS_VERSION is deprecated: please use MSVC_VERSION instead ")
        return msvs_version
    elif msvc_version and msvs_version:
        if not msvc_version == msvs_version:
            SCons.Warnings.warn(
                    SCons.Warnings.VisualVersionMismatch,
                    "Requested msvc version (%s) and msvs version (%s) do " \
                    "not match: please use MSVC_VERSION only to request a " \
                    "visual studio version, MSVS_VERSION is deprecated" \
                    % (msvc_version, msvs_version))
        return msvs_version
    if not msvc_version:
        installed_vcs = cached_get_installed_vcs()
        debug('installed_vcs:%s' % installed_vcs)
        if not installed_vcs:
            msg = 'No installed VCs'
            debug('msv %s\n' % repr(msg))
            SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, msg)
            return None
        msvc_version = installed_vcs[0]
        debug('msvc_setup_env: using default installed MSVC version %s\n' % repr(msvc_version))

    return msvc_version

def msvc_setup_env_once(env):
    try:
        has_run  = env["MSVC_SETUP_RUN"]
    except KeyError:
        has_run = False

    if not has_run:
        msvc_setup_env(env)
        env["MSVC_SETUP_RUN"] = True

def msvc_setup_env(env):
    debug('msvc_setup_env()')

    version = get_default_version(env)
    if version is None:
        warn_msg = "No version of Visual Studio compiler found - C/C++ " \
                   "compilers most likely not set correctly"
        SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
        return None
    debug('msvc_setup_env: using specified MSVC version %s\n' % repr(version))

    # XXX: we set-up both MSVS version for backward
    # compatibility with the msvs tool
    env['MSVC_VERSION'] = version
    env['MSVS_VERSION'] = version
    env['MSVS'] = {}

    try:
        script = find_batch_file(version)
    except VisualCException, e:
        msg = str(e)
        debug('Caught exception while looking for batch file (%s)' % msg)
        warn_msg = "VC version %s not installed.  " + \
                   "C/C++ compilers are most likely not set correctly.\n" + \
                   " Installed versions are: %s"
        warn_msg = warn_msg % (version, cached_get_installed_vcs())
        SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
        return None

    use_script = env.get('MSVC_USE_SCRIPT', True)
    if SCons.Util.is_String(use_script):
        debug('use_script 1 %s\n' % repr(use_script))
        d = script_env(use_script)
    elif use_script:
        host_platform, target_platform = get_host_target(env)
        host_target = (host_platform, target_platform)
        if not is_host_target_supported(host_target, version):
            warn_msg = "host, target = %s not supported for MSVC version %s" % \
                (host_target, version)
            SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
        arg = _HOST_TARGET_ARCH_TO_BAT_ARCH[host_target]
        debug('use_script 2 %s, args:%s\n' % (repr(script), arg))
        try:
            d = script_env(script, args=arg)
        except BatchFileExecutionError, e:
            msg = "MSVC error while executing %s with args %s (error was %s)" % \
                  (script, arg, str(e))
            raise SCons.Errors.UserError(msg)
    else:
        debug('MSVC_USE_SCRIPT set to False')
        warn_msg = "MSVC_USE_SCRIPT set to False, assuming environment " \
                   "set correctly."
        SCons.Warnings.warn(SCons.Warnings.VisualCMissingWarning, warn_msg)
        return None

    for k, v in d.items():
        env.PrependENVPath(k, v, delete_existing=True)

def msvc_exists(version=None):
    vcs = cached_get_installed_vcs()
    if version is None:
        return len(vcs) > 0
    return version in vcs