Add Rust support to Soong.
Adds support to Soong for building rust modules. This currently only
supports x86_64 device and x86 linux host targets. The functionality
is sufficient to build crosvm.
Bug: 136189233
Test: Test module builds.
Test: crosvm builds.
Change-Id: I6ea04615834a6d673578ab10ea1a2eb04259fe09
diff --git a/rust/compiler_test.go b/rust/compiler_test.go
new file mode 100644
index 0000000..5369096
--- /dev/null
+++ b/rust/compiler_test.go
@@ -0,0 +1,77 @@
+// Copyright 2019 The Android Open Source Project
+//
+// 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 rust
+
+import (
+ "strings"
+ "testing"
+)
+
+// Test that feature flags are being correctly generated.
+func TestFeaturesToFlags(t *testing.T) {
+ ctx := testRust(t, `
+ rust_library_host_dylib {
+ name: "libfoo",
+ srcs: ["foo.rs"],
+ crate_name: "foo",
+ features: [
+ "fizz",
+ "buzz"
+ ],
+ }`)
+
+ libfooDylib := ctx.ModuleForTests("libfoo", "linux_glibc_x86_64_dylib").Rule("rustc")
+
+ if !strings.Contains(libfooDylib.Args["rustcFlags"], "cfg 'feature=\"fizz\"'") ||
+ !strings.Contains(libfooDylib.Args["rustcFlags"], "cfg 'feature=\"buzz\"'") {
+ t.Fatalf("missing fizz and buzz feature flags for libfoo dylib, rustcFlags: %#v", libfooDylib.Args["rustcFlags"])
+ }
+}
+
+// Test that we reject multiple source files.
+func TestEnforceSingleSourceFile(t *testing.T) {
+
+ singleSrcError := "srcs can only contain one path for rust modules"
+
+ // Test libraries
+ testRustError(t, singleSrcError, `
+ rust_library_host {
+ name: "foo-bar-library",
+ srcs: ["foo.rs", "src/bar.rs"],
+ }`)
+
+ // Test binaries
+ testRustError(t, singleSrcError, `
+ rust_binary_host {
+ name: "foo-bar-binary",
+ srcs: ["foo.rs", "src/bar.rs"],
+ }`)
+
+ // Test proc_macros
+ testRustError(t, singleSrcError, `
+ rust_proc_macro {
+ name: "foo-bar-proc-macro",
+ srcs: ["foo.rs", "src/bar.rs"],
+ host_supported: true,
+ }`)
+
+ // Test prebuilts
+ testRustError(t, singleSrcError, `
+ rust_prebuilt_dylib {
+ name: "foo-bar-prebuilt",
+ srcs: ["liby.so", "libz.so"],
+ host_supported: true,
+ }`)
+}