315 lines
12 KiB
Python
Executable File
315 lines
12 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (c) 2012 Google Inc. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Utility functions for Windows builds.
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These functions are executed via gyp-win-tool when using the ninja generator.
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"""
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import os
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import re
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import shutil
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import subprocess
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import stat
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import string
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import sys
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BASE_DIR = os.path.dirname(os.path.abspath(__file__))
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# A regex matching an argument corresponding to the output filename passed to
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# link.exe.
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_LINK_EXE_OUT_ARG = re.compile('/OUT:(?P<out>.+)$', re.IGNORECASE)
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def main(args):
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executor = WinTool()
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exit_code = executor.Dispatch(args)
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if exit_code is not None:
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sys.exit(exit_code)
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class WinTool(object):
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"""This class performs all the Windows tooling steps. The methods can either
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be executed directly, or dispatched from an argument list."""
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def _UseSeparateMspdbsrv(self, env, args):
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"""Allows to use a unique instance of mspdbsrv.exe per linker instead of a
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shared one."""
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if len(args) < 1:
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raise Exception("Not enough arguments")
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if args[0] != 'link.exe':
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return
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# Use the output filename passed to the linker to generate an endpoint name
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# for mspdbsrv.exe.
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endpoint_name = None
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for arg in args:
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m = _LINK_EXE_OUT_ARG.match(arg)
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if m:
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endpoint_name = re.sub(r'\W+', '',
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'%s_%d' % (m.group('out'), os.getpid()))
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break
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if endpoint_name is None:
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return
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# Adds the appropriate environment variable. This will be read by link.exe
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# to know which instance of mspdbsrv.exe it should connect to (if it's
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# not set then the default endpoint is used).
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env['_MSPDBSRV_ENDPOINT_'] = endpoint_name
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def Dispatch(self, args):
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"""Dispatches a string command to a method."""
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if len(args) < 1:
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raise Exception("Not enough arguments")
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method = "Exec%s" % self._CommandifyName(args[0])
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return getattr(self, method)(*args[1:])
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def _CommandifyName(self, name_string):
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"""Transforms a tool name like recursive-mirror to RecursiveMirror."""
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return name_string.title().replace('-', '')
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def _GetEnv(self, arch):
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"""Gets the saved environment from a file for a given architecture."""
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# The environment is saved as an "environment block" (see CreateProcess
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# and msvs_emulation for details). We convert to a dict here.
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# Drop last 2 NULs, one for list terminator, one for trailing vs. separator.
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pairs = open(arch).read()[:-2].split('\0')
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kvs = [item.split('=', 1) for item in pairs]
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return dict(kvs)
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def ExecStamp(self, path):
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"""Simple stamp command."""
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open(path, 'w').close()
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def ExecRecursiveMirror(self, source, dest):
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"""Emulation of rm -rf out && cp -af in out."""
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if os.path.exists(dest):
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if os.path.isdir(dest):
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def _on_error(fn, path, excinfo):
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# The operation failed, possibly because the file is set to
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# read-only. If that's why, make it writable and try the op again.
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if not os.access(path, os.W_OK):
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os.chmod(path, stat.S_IWRITE)
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fn(path)
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shutil.rmtree(dest, onerror=_on_error)
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else:
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if not os.access(dest, os.W_OK):
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# Attempt to make the file writable before deleting it.
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os.chmod(dest, stat.S_IWRITE)
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os.unlink(dest)
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if os.path.isdir(source):
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shutil.copytree(source, dest)
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else:
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shutil.copy2(source, dest)
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def ExecLinkWrapper(self, arch, use_separate_mspdbsrv, *args):
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"""Filter diagnostic output from link that looks like:
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' Creating library ui.dll.lib and object ui.dll.exp'
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This happens when there are exports from the dll or exe.
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"""
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env = self._GetEnv(arch)
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if use_separate_mspdbsrv == 'True':
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self._UseSeparateMspdbsrv(env, args)
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link = subprocess.Popen([args[0].replace('/', '\\')] + list(args[1:]),
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shell=True,
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env=env,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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out, _ = link.communicate()
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for line in out.splitlines():
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if (not line.startswith(' Creating library ') and
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not line.startswith('Generating code') and
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not line.startswith('Finished generating code')):
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print line
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return link.returncode
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def ExecLinkWithManifests(self, arch, embed_manifest, out, ldcmd, resname,
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mt, rc, intermediate_manifest, *manifests):
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"""A wrapper for handling creating a manifest resource and then executing
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a link command."""
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# The 'normal' way to do manifests is to have link generate a manifest
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# based on gathering dependencies from the object files, then merge that
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# manifest with other manifests supplied as sources, convert the merged
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# manifest to a resource, and then *relink*, including the compiled
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# version of the manifest resource. This breaks incremental linking, and
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# is generally overly complicated. Instead, we merge all the manifests
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# provided (along with one that includes what would normally be in the
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# linker-generated one, see msvs_emulation.py), and include that into the
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# first and only link. We still tell link to generate a manifest, but we
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# only use that to assert that our simpler process did not miss anything.
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variables = {
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'python': sys.executable,
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'arch': arch,
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'out': out,
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'ldcmd': ldcmd,
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'resname': resname,
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'mt': mt,
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'rc': rc,
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'intermediate_manifest': intermediate_manifest,
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'manifests': ' '.join(manifests),
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}
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add_to_ld = ''
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if manifests:
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subprocess.check_call(
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'%(python)s gyp-win-tool manifest-wrapper %(arch)s %(mt)s -nologo '
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'-manifest %(manifests)s -out:%(out)s.manifest' % variables)
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if embed_manifest == 'True':
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subprocess.check_call(
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'%(python)s gyp-win-tool manifest-to-rc %(arch)s %(out)s.manifest'
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' %(out)s.manifest.rc %(resname)s' % variables)
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subprocess.check_call(
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'%(python)s gyp-win-tool rc-wrapper %(arch)s %(rc)s '
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'%(out)s.manifest.rc' % variables)
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add_to_ld = ' %(out)s.manifest.res' % variables
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subprocess.check_call(ldcmd + add_to_ld)
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# Run mt.exe on the theoretically complete manifest we generated, merging
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# it with the one the linker generated to confirm that the linker
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# generated one does not add anything. This is strictly unnecessary for
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# correctness, it's only to verify that e.g. /MANIFESTDEPENDENCY was not
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# used in a #pragma comment.
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if manifests:
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# Merge the intermediate one with ours to .assert.manifest, then check
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# that .assert.manifest is identical to ours.
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subprocess.check_call(
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'%(python)s gyp-win-tool manifest-wrapper %(arch)s %(mt)s -nologo '
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'-manifest %(out)s.manifest %(intermediate_manifest)s '
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'-out:%(out)s.assert.manifest' % variables)
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assert_manifest = '%(out)s.assert.manifest' % variables
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our_manifest = '%(out)s.manifest' % variables
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# Load and normalize the manifests. mt.exe sometimes removes whitespace,
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# and sometimes doesn't unfortunately.
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with open(our_manifest, 'rb') as our_f:
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with open(assert_manifest, 'rb') as assert_f:
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our_data = our_f.read().translate(None, string.whitespace)
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assert_data = assert_f.read().translate(None, string.whitespace)
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if our_data != assert_data:
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os.unlink(out)
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def dump(filename):
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sys.stderr.write('%s\n-----\n' % filename)
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with open(filename, 'rb') as f:
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sys.stderr.write(f.read() + '\n-----\n')
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dump(intermediate_manifest)
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dump(our_manifest)
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dump(assert_manifest)
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sys.stderr.write(
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'Linker generated manifest "%s" added to final manifest "%s" '
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'(result in "%s"). '
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'Were /MANIFEST switches used in #pragma statements? ' % (
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intermediate_manifest, our_manifest, assert_manifest))
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return 1
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def ExecManifestWrapper(self, arch, *args):
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"""Run manifest tool with environment set. Strip out undesirable warning
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(some XML blocks are recognized by the OS loader, but not the manifest
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tool)."""
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env = self._GetEnv(arch)
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popen = subprocess.Popen(args, shell=True, env=env,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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out, _ = popen.communicate()
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for line in out.splitlines():
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if line and 'manifest authoring warning 81010002' not in line:
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print line
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return popen.returncode
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def ExecManifestToRc(self, arch, *args):
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"""Creates a resource file pointing a SxS assembly manifest.
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|args| is tuple containing path to resource file, path to manifest file
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and resource name which can be "1" (for executables) or "2" (for DLLs)."""
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manifest_path, resource_path, resource_name = args
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with open(resource_path, 'wb') as output:
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output.write('#include <windows.h>\n%s RT_MANIFEST "%s"' % (
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resource_name,
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os.path.abspath(manifest_path).replace('\\', '/')))
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def ExecMidlWrapper(self, arch, outdir, tlb, h, dlldata, iid, proxy, idl,
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*flags):
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"""Filter noisy filenames output from MIDL compile step that isn't
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quietable via command line flags.
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"""
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args = ['midl', '/nologo'] + list(flags) + [
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'/out', outdir,
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'/tlb', tlb,
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'/h', h,
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'/dlldata', dlldata,
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'/iid', iid,
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'/proxy', proxy,
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idl]
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env = self._GetEnv(arch)
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popen = subprocess.Popen(args, shell=True, env=env,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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out, _ = popen.communicate()
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# Filter junk out of stdout, and write filtered versions. Output we want
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# to filter is pairs of lines that look like this:
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# Processing C:\Program Files (x86)\Microsoft SDKs\...\include\objidl.idl
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# objidl.idl
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lines = out.splitlines()
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prefixes = ('Processing ', '64 bit Processing ')
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processing = set(os.path.basename(x)
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for x in lines if x.startswith(prefixes))
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for line in lines:
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if not line.startswith(prefixes) and line not in processing:
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print line
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return popen.returncode
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def ExecAsmWrapper(self, arch, *args):
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"""Filter logo banner from invocations of asm.exe."""
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env = self._GetEnv(arch)
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popen = subprocess.Popen(args, shell=True, env=env,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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out, _ = popen.communicate()
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for line in out.splitlines():
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if (not line.startswith('Copyright (C) Microsoft Corporation') and
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not line.startswith('Microsoft (R) Macro Assembler') and
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not line.startswith(' Assembling: ') and
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line):
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print line
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return popen.returncode
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def ExecRcWrapper(self, arch, *args):
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"""Filter logo banner from invocations of rc.exe. Older versions of RC
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don't support the /nologo flag."""
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env = self._GetEnv(arch)
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popen = subprocess.Popen(args, shell=True, env=env,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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out, _ = popen.communicate()
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for line in out.splitlines():
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if (not line.startswith('Microsoft (R) Windows (R) Resource Compiler') and
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not line.startswith('Copyright (C) Microsoft Corporation') and
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line):
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print line
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return popen.returncode
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def ExecActionWrapper(self, arch, rspfile, *dir):
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"""Runs an action command line from a response file using the environment
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for |arch|. If |dir| is supplied, use that as the working directory."""
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env = self._GetEnv(arch)
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# TODO(scottmg): This is a temporary hack to get some specific variables
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# through to actions that are set after gyp-time. http://crbug.com/333738.
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for k, v in os.environ.iteritems():
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if k not in env:
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env[k] = v
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args = open(rspfile).read()
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dir = dir[0] if dir else None
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return subprocess.call(args, shell=True, env=env, cwd=dir)
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def ExecClCompile(self, project_dir, selected_files):
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"""Executed by msvs-ninja projects when the 'ClCompile' target is used to
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build selected C/C++ files."""
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project_dir = os.path.relpath(project_dir, BASE_DIR)
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selected_files = selected_files.split(';')
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ninja_targets = [os.path.join(project_dir, filename) + '^^'
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for filename in selected_files]
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cmd = ['ninja.exe']
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cmd.extend(ninja_targets)
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return subprocess.call(cmd, shell=True, cwd=BASE_DIR)
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if __name__ == '__main__':
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sys.exit(main(sys.argv[1:]))
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