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568787b95f
By default, windows.h exposes a large number of problematic define statements
which are UpperCamelCase, such as a define from `CreateWindow` to
`CreateWindow{A,W}`.
As many of these names are generic (e.g. CreateFile, CreateWindow), they can
mess up Gecko code that may legitimately have its own methods with the same
names.
The header also defines some traditional SCREAMING_SNAKE_CASE defines which
can mess up our code by conflicting with local values.
This patch adds a simple code generator which generates wrappers for these
defines, and uses them to wrap the windows.h wrapper using the `stl_wrappers`
mechanism, allowing us to use windows.h in more places.
Differential Revision: https://phabricator.services.mozilla.com/D10932
89 lines
3.3 KiB
Python
89 lines
3.3 KiB
Python
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# vim: set filetype=python:
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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with Files('**'):
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BUG_COMPONENT = ('Firefox Build System', 'General')
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with Files('mozunit/**'):
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BUG_COMPONENT = ('Testing', 'Python Test')
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DIST_INSTALL = False
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# For sanity's sake, we compile nsinstall without the wrapped system
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# headers, so that we can use it to set up the wrapped system headers.
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NoVisibilityFlags()
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CONFIGURE_SUBST_FILES += [
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'tests/src-simple/Makefile',
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]
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if CONFIG['HOST_OS_ARCH'] != 'WINNT':
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HOST_SOURCES += [
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'nsinstall.c',
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'pathsub.c',
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]
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HostProgram('nsinstall_real')
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PYTHON_UNITTEST_MANIFESTS += [
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'tests/python.ini',
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]
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if CONFIG['CC_TYPE'] in ('clang', 'gcc') and CONFIG['MOZ_OPTIMIZE']:
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CFLAGS += ['-O3']
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HOST_DEFINES = {
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'UNICODE': True,
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'_UNICODE': True,
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}
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include('stl-headers.mozbuild')
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if CONFIG['WRAP_STL_INCLUDES']:
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stl_compiler = None
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if CONFIG['CC_TYPE'] in ('clang', 'gcc'):
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stl_compiler = 'gcc'
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elif CONFIG['CC_TYPE'] in ('msvc', 'clang-cl'):
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stl_compiler = 'msvc'
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if stl_compiler:
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# Note that the 'stl_wrappers' folder is known to the build system as
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# containing generated files; if this is changed here then the code in
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# GeneratedFile.__init__ in python/mozbuild/mozbuild/frontend/data.py
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# might need to be updated accordingly as well.
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template_file = SRCDIR + '/%s-stl-wrapper.template.h' % stl_compiler
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output_dir = '../dist/stl_wrappers'
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# We have to use a sentinel file as the first file because the
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# file_generate action will create it for us, but we want to create all
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# the files in gen_wrappers()
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outputs = tuple(['stl.sentinel'] + ['%s/%s' % (output_dir, h) for h in stl_headers])
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GENERATED_FILES += [outputs]
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stl = GENERATED_FILES[outputs]
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stl.script = 'make-stl-wrappers.py:gen_wrappers'
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stl.flags = [output_dir, stl_compiler, template_file]
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stl.flags.extend(stl_headers)
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# Wrap <windows.h> to make it easier to use correctly
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# NOTE: If we aren't wrapping STL includes, we're building part of the browser
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# which won't need this wrapper, such as L10N. Just don't try to generate the
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# wrapper in that case.
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if CONFIG['OS_ARCH'] == 'WINNT':
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GENERATED_FILES += ['../dist/stl_wrappers/windows.h']
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windows_h = GENERATED_FILES['../dist/stl_wrappers/windows.h']
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windows_h.script = 'make-windows-h-wrapper.py:generate'
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windows_h.inputs = ['windows-h-constant.decls.h',
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'windows-h-unicode.decls.h',
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'windows-h-wrapper.template.h']
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windows_h.flags = [stl_compiler]
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if CONFIG['WRAP_SYSTEM_INCLUDES']:
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include('system-headers.mozbuild')
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output_dir = '../dist/system_wrappers'
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outputs = tuple(['system-header.sentinel'] + ['%s/%s' % (output_dir, h) for h in stl_headers + system_headers])
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GENERATED_FILES += [outputs]
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system = GENERATED_FILES[outputs]
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system.script = 'make-system-wrappers.py:gen_wrappers'
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system.flags = [output_dir]
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system.flags.extend(stl_headers)
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system.flags.extend(system_headers)
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