Move toolchain and global variables into separate package

Move all of the configuration into a cc/config package

Change-Id: If56fc7242062ed1ce3cb297f78a1e0ef7537373c
diff --git a/cc/config/x86_windows_host.go b/cc/config/x86_windows_host.go
new file mode 100644
index 0000000..125d02d
--- /dev/null
+++ b/cc/config/x86_windows_host.go
@@ -0,0 +1,218 @@
+// Copyright 2015 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"strings"
+
+	"android/soong/android"
+)
+
+var (
+	windowsCflags = []string{
+		"-fno-exceptions", // from build/core/combo/select.mk
+		"-Wno-multichar",  // from build/core/combo/select.mk
+
+		"-DUSE_MINGW",
+		"-DWIN32_LEAN_AND_MEAN",
+		"-Wno-unused-parameter",
+
+		// Workaround differences in inttypes.h between host and target.
+		//See bug 12708004.
+		"-D__STDC_FORMAT_MACROS",
+		"-D__STDC_CONSTANT_MACROS",
+
+		// Use C99-compliant printf functions (%zd).
+		"-D__USE_MINGW_ANSI_STDIO=1",
+		// Admit to using >= Vista. Both are needed because of <_mingw.h>.
+		"-D_WIN32_WINNT=0x0600",
+		"-DWINVER=0x0600",
+		// Get 64-bit off_t and related functions.
+		"-D_FILE_OFFSET_BITS=64",
+
+		"--sysroot ${WindowsGccRoot}/${WindowsGccTriple}",
+
+		// HOST_RELEASE_CFLAGS
+		"-O2", // from build/core/combo/select.mk
+		"-g",  // from build/core/combo/select.mk
+		"-fno-strict-aliasing", // from build/core/combo/select.mk
+	}
+
+	windowsIncludeFlags = []string{
+		"-isystem ${WindowsGccRoot}/${WindowsGccTriple}/include",
+		"-isystem ${WindowsGccRoot}/lib/gcc/${WindowsGccTriple}/4.8.3/include",
+	}
+
+	windowsLdflags = []string{
+		"--enable-stdcall-fixup",
+	}
+
+	windowsX86Cflags = []string{
+		"-m32",
+	}
+
+	windowsX8664Cflags = []string{
+		"-m64",
+	}
+
+	windowsX86Ldflags = []string{
+		"-m32",
+		"-L${WindowsGccRoot}/${WindowsGccTriple}/lib32",
+	}
+
+	windowsX8664Ldflags = []string{
+		"-m64",
+		"-L${WindowsGccRoot}/${WindowsGccTriple}/lib64",
+	}
+
+	windowsAvailableLibraries = addPrefix([]string{
+		"gdi32",
+		"imagehlp",
+		"ole32",
+		"psapi",
+		"userenv",
+		"uuid",
+		"ws2_32",
+	}, "-l")
+)
+
+const (
+	windowsGccVersion = "4.8"
+)
+
+func init() {
+	pctx.StaticVariable("WindowsGccVersion", windowsGccVersion)
+
+	pctx.SourcePathVariable("WindowsGccRoot",
+		"prebuilts/gcc/${HostPrebuiltTag}/host/x86_64-w64-mingw32-${WindowsGccVersion}")
+
+	pctx.StaticVariable("WindowsGccTriple", "x86_64-w64-mingw32")
+
+	pctx.StaticVariable("WindowsCflags", strings.Join(windowsCflags, " "))
+	pctx.StaticVariable("WindowsLdflags", strings.Join(windowsLdflags, " "))
+
+	pctx.StaticVariable("WindowsX86Cflags", strings.Join(windowsX86Cflags, " "))
+	pctx.StaticVariable("WindowsX8664Cflags", strings.Join(windowsX8664Cflags, " "))
+	pctx.StaticVariable("WindowsX86Ldflags", strings.Join(windowsX86Ldflags, " "))
+	pctx.StaticVariable("WindowsX8664Ldflags", strings.Join(windowsX8664Ldflags, " "))
+
+	pctx.StaticVariable("WindowsIncludeFlags", strings.Join(windowsIncludeFlags, " "))
+}
+
+type toolchainWindows struct {
+	cFlags, ldFlags string
+}
+
+type toolchainWindowsX86 struct {
+	toolchain32Bit
+	toolchainWindows
+}
+
+type toolchainWindowsX8664 struct {
+	toolchain64Bit
+	toolchainWindows
+}
+
+func (t *toolchainWindowsX86) Name() string {
+	return "x86"
+}
+
+func (t *toolchainWindowsX8664) Name() string {
+	return "x86_64"
+}
+
+func (t *toolchainWindows) GccRoot() string {
+	return "${config.WindowsGccRoot}"
+}
+
+func (t *toolchainWindows) GccTriple() string {
+	return "${config.WindowsGccTriple}"
+}
+
+func (t *toolchainWindows) GccVersion() string {
+	return windowsGccVersion
+}
+
+func (t *toolchainWindowsX86) Cflags() string {
+	return "${config.WindowsCflags} ${config.WindowsX86Cflags}"
+}
+
+func (t *toolchainWindowsX8664) Cflags() string {
+	return "${config.WindowsCflags} ${config.WindowsX8664Cflags}"
+}
+
+func (t *toolchainWindows) Cppflags() string {
+	return ""
+}
+
+func (t *toolchainWindowsX86) Ldflags() string {
+	return "${config.WindowsLdflags} ${config.WindowsX86Ldflags}"
+}
+
+func (t *toolchainWindowsX8664) Ldflags() string {
+	return "${config.WindowsLdflags} ${config.WindowsX8664Ldflags}"
+}
+
+func (t *toolchainWindows) IncludeFlags() string {
+	return "${config.WindowsIncludeFlags}"
+}
+
+func (t *toolchainWindows) ClangSupported() bool {
+	return false
+}
+
+func (t *toolchainWindows) ClangTriple() string {
+	panic("Clang is not supported under mingw")
+}
+
+func (t *toolchainWindows) ClangCflags() string {
+	panic("Clang is not supported under mingw")
+}
+
+func (t *toolchainWindows) ClangCppflags() string {
+	panic("Clang is not supported under mingw")
+}
+
+func (t *toolchainWindows) ClangLdflags() string {
+	panic("Clang is not supported under mingw")
+}
+
+func (t *toolchainWindows) ShlibSuffix() string {
+	return ".dll"
+}
+
+func (t *toolchainWindows) ExecutableSuffix() string {
+	return ".exe"
+}
+
+func (t *toolchainWindows) AvailableLibraries() []string {
+	return windowsAvailableLibraries
+}
+
+var toolchainWindowsX86Singleton Toolchain = &toolchainWindowsX86{}
+var toolchainWindowsX8664Singleton Toolchain = &toolchainWindowsX8664{}
+
+func windowsX86ToolchainFactory(arch android.Arch) Toolchain {
+	return toolchainWindowsX86Singleton
+}
+
+func windowsX8664ToolchainFactory(arch android.Arch) Toolchain {
+	return toolchainWindowsX8664Singleton
+}
+
+func init() {
+	registerToolchainFactory(android.Windows, android.X86, windowsX86ToolchainFactory)
+	registerToolchainFactory(android.Windows, android.X86_64, windowsX8664ToolchainFactory)
+}