Add support for Windows Message Compiler

We've only got one user of this currently, but since it needs the
location of the toolchain, and different flags based on 32 vs 64-bit,
it's easier just to add support than to get this into a genrule.

Test: Convert external/mdnsresponder to Soong, build
Change-Id: I6c19a82bc14f6ab556f6cc5f37164862ba5f9083

1 files changed, 31 insertions, 0 deletions

diff --git a/cc/gen.go b/cc/gen.go
index 7a22abdd..6c9579ed 100644
--- a/cc/gen.go
+++ b/cc/gen.go
@@ -54,6 +54,13 @@ var (
 			Deps:        blueprint.DepsGCC,
 		},
 		"aidlFlags", "outDir")
+
+	windmc = pctx.AndroidStaticRule("windmc",
+		blueprint.RuleParams{
+			Command:     "$windmcCmd -r$$(dirname $out) -h$$(dirname $out) $in",
+			CommandDeps: []string{"$windmcCmd"},
+		},
+		"windmcCmd")
 )
 
 func genYacc(ctx android.ModuleContext, yaccFile android.Path, outFile android.ModuleGenPath, yaccFlags string) (headerFile android.ModuleGenPath) {
@@ -100,6 +107,26 @@ func genLex(ctx android.ModuleContext, lexFile android.Path, outFile android.Mod
 	})
 }
 
+func genWinMsg(ctx android.ModuleContext, srcFile android.Path, flags builderFlags) (android.Path, android.Path) {
+	headerFile := android.GenPathWithExt(ctx, "windmc", srcFile, "h")
+	rcFile := android.GenPathWithExt(ctx, "windmc", srcFile, "rc")
+
+	windmcCmd := gccCmd(flags.toolchain, "windmc")
+
+	ctx.ModuleBuild(pctx, android.ModuleBuildParams{
+		Rule:           windmc,
+		Description:    "windmc " + srcFile.Rel(),
+		Output:         rcFile,
+		ImplicitOutput: headerFile,
+		Input:          srcFile,
+		Args: map[string]string{
+			"windmcCmd": windmcCmd,
+		},
+	})
+
+	return rcFile, headerFile
+}
+
 func genSources(ctx android.ModuleContext, srcFiles android.Paths,
 	buildFlags builderFlags) (android.Paths, android.Paths) {
 
@@ -137,6 +164,10 @@ func genSources(ctx android.ModuleContext, srcFiles android.Paths,
 			cppFile := rsGeneratedCppFile(ctx, srcFile)
 			rsFiles = append(rsFiles, srcFiles[i])
 			srcFiles[i] = cppFile
+		case ".mc":
+			rcFile, headerFile := genWinMsg(ctx, srcFile, buildFlags)
+			srcFiles[i] = rcFile
+			deps = append(deps, headerFile)
 		}
 	}