Mesa (gallium-0.2): scons: Support MinGW32 cross compiler.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Tue Nov 18 11:00:34 UTC 2008
Module: Mesa
Branch: gallium-0.2
Commit: 6cf59e1293c5777ba5675e6315cbfad3211f9260
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=6cf59e1293c5777ba5675e6315cbfad3211f9260
Author: José Fonseca <jrfonseca at tungstengraphics.com>
Date: Tue Nov 18 19:13:32 2008 +0900
scons: Support MinGW32 cross compiler.
To build an alternative opengl32.dll with Gallium's software-rasterizer from a
debian-based distribution run:
sudo apt-get install mingw32
scons platform=windows toolchain=crossmingw machine=x86 winsys=gdi dri=no
---
common.py | 2 +
scons/crossmingw.py | 182 +++++++++++++++++++++++++++++++++++++
scons/gallium.py | 22 +++--
src/gallium/winsys/gdi/SConscript | 6 +
4 files changed, 202 insertions(+), 10 deletions(-)
diff --git a/common.py b/common.py
index cc2582f..d9e919e 100644
--- a/common.py
+++ b/common.py
@@ -60,6 +60,8 @@ def AddOptions(opts):
allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
opts.Add(EnumOption('platform', 'target platform', default_platform,
allowed_values=('linux', 'cell', 'windows', 'winddk', 'wince')))
+ opts.Add(EnumOption('toolchain', 'compiler toolchain', 'default',
+ allowed_values=('default', 'crossmingw')))
opts.Add(BoolOption('llvm', 'use LLVM', 'no'))
opts.Add(BoolOption('dri', 'build DRI drivers', default_dri))
diff --git a/scons/crossmingw.py b/scons/crossmingw.py
new file mode 100644
index 0000000..cf4887b
--- /dev/null
+++ b/scons/crossmingw.py
@@ -0,0 +1,182 @@
+"""SCons.Tool.gcc
+
+Tool-specific initialization for MinGW (http://www.mingw.org/)
+
+There normally shouldn't be any need to import this module directly.
+It will usually be imported through the generic SCons.Tool.Tool()
+selection method.
+
+See also http://www.scons.org/wiki/CrossCompilingMingw
+"""
+
+#
+# Copyright (c) 2001, 2002, 2003, 2004 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.
+#
+
+import os
+import os.path
+import string
+
+import SCons.Action
+import SCons.Builder
+import SCons.Tool
+import SCons.Util
+
+# This is what we search for to find mingw:
+prefixes = SCons.Util.Split("""
+ mingw32-
+ mingw32msvc-
+ i386-mingw32-
+ i486-mingw32-
+ i586-mingw32-
+ i686-mingw32-
+ i386-mingw32msvc-
+ i486-mingw32msvc-
+ i586-mingw32msvc-
+ i686-mingw32msvc-
+""")
+
+def find(env):
+ for prefix in prefixes:
+ # First search in the SCons path and then the OS path:
+ if env.WhereIs(prefix + 'gcc') or SCons.Util.WhereIs(prefix + 'gcc'):
+ return prefix
+
+ return ''
+
+def shlib_generator(target, source, env, for_signature):
+ cmd = SCons.Util.CLVar(['$SHLINK', '$SHLINKFLAGS'])
+
+ dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
+ if dll: cmd.extend(['-o', dll])
+
+ cmd.extend(['$SOURCES', '$_LIBDIRFLAGS', '$_LIBFLAGS'])
+
+ implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX')
+ if implib: cmd.append('-Wl,--out-implib,'+implib.get_string(for_signature))
+
+ def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
+ if def_target: cmd.append('-Wl,--output-def,'+def_target.get_string(for_signature))
+
+ return [cmd]
+
+def shlib_emitter(target, source, env):
+ dll = env.FindIxes(target, 'SHLIBPREFIX', 'SHLIBSUFFIX')
+ no_import_lib = env.get('no_import_lib', 0)
+
+ if not dll:
+ raise SCons.Errors.UserError, "A shared library should have exactly one target with the suffix: %s" % env.subst("$SHLIBSUFFIX")
+
+ if not no_import_lib and \
+ not env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX'):
+
+ # Append an import library to the list of targets.
+ target.append(env.ReplaceIxes(dll,
+ 'SHLIBPREFIX', 'SHLIBSUFFIX',
+ 'LIBPREFIX', 'LIBSUFFIX'))
+
+ # Append a def file target if there isn't already a def file target
+ # or a def file source. There is no option to disable def file
+ # target emitting, because I can't figure out why someone would ever
+ # want to turn it off.
+ def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
+ def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
+ if not def_source and not def_target:
+ target.append(env.ReplaceIxes(dll,
+ 'SHLIBPREFIX', 'SHLIBSUFFIX',
+ 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX'))
+
+ return (target, source)
+
+
+shlib_action = SCons.Action.Action(shlib_generator, generator=1)
+
+res_action = SCons.Action.Action('$RCCOM', '$RCCOMSTR')
+
+res_builder = SCons.Builder.Builder(action=res_action, suffix='.o',
+ source_scanner=SCons.Tool.SourceFileScanner)
+SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan)
+
+def generate(env):
+ mingw_prefix = find(env)
+
+ if mingw_prefix:
+ dir = os.path.dirname(env.WhereIs(mingw_prefix + 'gcc') or SCons.Util.WhereIs(mingw_prefix + 'gcc'))
+
+ # The mingw bin directory must be added to the path:
+ path = env['ENV'].get('PATH', [])
+ if not path:
+ path = []
+ if SCons.Util.is_String(path):
+ path = string.split(path, os.pathsep)
+
+ env['ENV']['PATH'] = string.join([dir] + path, os.pathsep)
+
+ # Most of mingw is the same as gcc and friends...
+ gnu_tools = ['gcc', 'g++', 'gnulink', 'ar', 'gas']
+ for tool in gnu_tools:
+ SCons.Tool.Tool(tool)(env)
+
+ #... but a few things differ:
+ env['CC'] = mingw_prefix + 'gcc'
+ env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
+ env['CXX'] = mingw_prefix + 'g++'
+ env['SHCXXFLAGS'] = SCons.Util.CLVar('$CXXFLAGS')
+ env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS -shared')
+ env['SHLINKCOM'] = shlib_action
+ env.Append(SHLIBEMITTER = [shlib_emitter])
+ env['LINK'] = mingw_prefix + 'g++'
+ env['AR'] = mingw_prefix + 'ar'
+ env['RANLIB'] = mingw_prefix + 'ranlib'
+ env['LINK'] = mingw_prefix + 'g++'
+ env['AS'] = mingw_prefix + 'as'
+ env['WIN32DEFPREFIX'] = ''
+ env['WIN32DEFSUFFIX'] = '.def'
+ env['SHOBJSUFFIX'] = '.o'
+ env['STATIC_AND_SHARED_OBJECTS_ARE_THE_SAME'] = 1
+
+ env['RC'] = mingw_prefix + 'windres'
+ env['RCFLAGS'] = SCons.Util.CLVar('')
+ env['RCCOM'] = '$RC $_CPPDEFFLAGS $_CPPINCFLAGS ${INCPREFIX}${SOURCE.dir} $RCFLAGS -i $SOURCE -o $TARGET'
+ env['BUILDERS']['RES'] = res_builder
+
+ # Some setting from the platform also have to be overridden:
+ env['OBJPREFIX'] = ''
+ env['OBJSUFFIX'] = '.o'
+ env['LIBPREFIX'] = 'lib'
+ env['LIBSUFFIX'] = '.a'
+ env['SHOBJPREFIX'] = '$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.AppendUnique(LIBS = ['iberty'])
+ env.AppendUnique(LINKFLAGS = ['-Wl,--enable-stdcall-fixup'])
+
+def exists(env):
+ return find(env)
diff --git a/scons/gallium.py b/scons/gallium.py
index c9d5368..f7ac5e5 100644
--- a/scons/gallium.py
+++ b/scons/gallium.py
@@ -170,22 +170,24 @@ def generate(env):
#if env.get('quiet', False):
# quietCommandLines(env)
+ # Toolchain
+ platform = env['platform']
+ if env['toolchain'] == 'default':
+ if platform == 'winddk':
+ env['toolchain'] == 'winddk'
+ elif platform == 'wince':
+ env.Tool('wcesdk')
+ env['toolchain'] == 'wcesdk'
+ env.Tool(env['toolchain'])
+
# shortcuts
debug = env['debug']
machine = env['machine']
platform = env['platform']
x86 = env['machine'] == 'x86'
ppc = env['machine'] == 'ppc'
- gcc = env['platform'] in ('linux', 'freebsd', 'darwin')
- msvc = env['platform'] in ('windows', 'winddk', 'wince')
-
- # Tool
- if platform == 'winddk':
- env.Tool('winddk')
- elif platform == 'wince':
- env.Tool('wcesdk')
- else:
- env.Tool('default')
+ gcc = env['platform'] in ('linux', 'freebsd', 'darwin') or env['toolchain'] == 'crossmingw'
+ msvc = env['platform'] in ('windows', 'winddk', 'wince') and env['toolchain'] != 'crossmingw'
# Put build output in a separate dir, which depends on the current
# configuration. See also http://www.scons.org/wiki/AdvancedBuildExample
diff --git a/src/gallium/winsys/gdi/SConscript b/src/gallium/winsys/gdi/SConscript
index 170fdf5..dce81ec 100644
--- a/src/gallium/winsys/gdi/SConscript
+++ b/src/gallium/winsys/gdi/SConscript
@@ -13,6 +13,12 @@ if env['platform'] == 'windows':
'#src/mesa/main',
])
+ env.Append(CPPDEFINES = [
+ '__GL_EXPORTS',
+ 'BUILD_GL32',
+ '_GNU_H_WINDOWS32_DEFINES',
+ ])
+
sources = [
'opengl32.def',
'wgl.c',
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