Use libabigail to track NDK ABIs.
The local diffing behavior is currently flagged off so we can land
this in stages.
Test: pytest cc
Test: treehugger
Test: development/tools/update_ndk_abi.sh
Test: m ndk
Bug: http://b/156513478
Change-Id: Iccb314411bc74ea3ddfea8b85b0539709295f65a
diff --git a/cc/ndk_abi.go b/cc/ndk_abi.go
new file mode 100644
index 0000000..b9b57af
--- /dev/null
+++ b/cc/ndk_abi.go
@@ -0,0 +1,102 @@
+// Copyright 2021 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 cc
+
+import (
+ "android/soong/android"
+)
+
+func init() {
+ android.RegisterSingletonType("ndk_abi_dump", NdkAbiDumpSingleton)
+ android.RegisterSingletonType("ndk_abi_diff", NdkAbiDiffSingleton)
+}
+
+func getNdkAbiDumpInstallBase(ctx android.PathContext) android.OutputPath {
+ return android.PathForOutput(ctx).Join(ctx, "abi-dumps/ndk")
+}
+
+func getNdkAbiDumpTimestampFile(ctx android.PathContext) android.OutputPath {
+ return android.PathForOutput(ctx, "ndk_abi_dump.timestamp")
+}
+
+func NdkAbiDumpSingleton() android.Singleton {
+ return &ndkAbiDumpSingleton{}
+}
+
+type ndkAbiDumpSingleton struct{}
+
+func (n *ndkAbiDumpSingleton) GenerateBuildActions(ctx android.SingletonContext) {
+ var depPaths android.Paths
+ ctx.VisitAllModules(func(module android.Module) {
+ if !module.Enabled() {
+ return
+ }
+
+ if m, ok := module.(*Module); ok {
+ if installer, ok := m.installer.(*stubDecorator); ok {
+ if canDumpAbi(m) {
+ depPaths = append(depPaths, installer.abiDumpPath)
+ }
+ }
+ }
+ })
+
+ // `m dump-ndk-abi` will dump the NDK ABI.
+ // `development/tools/ndk/update_ndk_abi.sh` will dump the NDK ABI and
+ // update the golden copies in prebuilts/abi-dumps/ndk.
+ ctx.Build(pctx, android.BuildParams{
+ Rule: android.Touch,
+ Output: getNdkAbiDumpTimestampFile(ctx),
+ Implicits: depPaths,
+ })
+
+ ctx.Phony("dump-ndk-abi", getNdkAbiDumpTimestampFile(ctx))
+}
+
+func getNdkAbiDiffTimestampFile(ctx android.PathContext) android.WritablePath {
+ return android.PathForOutput(ctx, "ndk_abi_diff.timestamp")
+}
+
+func NdkAbiDiffSingleton() android.Singleton {
+ return &ndkAbiDiffSingleton{}
+}
+
+type ndkAbiDiffSingleton struct{}
+
+func (n *ndkAbiDiffSingleton) GenerateBuildActions(ctx android.SingletonContext) {
+ var depPaths android.Paths
+ ctx.VisitAllModules(func(module android.Module) {
+ if m, ok := module.(android.Module); ok && !m.Enabled() {
+ return
+ }
+
+ if m, ok := module.(*Module); ok {
+ if installer, ok := m.installer.(*stubDecorator); ok {
+ depPaths = append(depPaths, installer.abiDiffPaths...)
+ }
+ }
+ })
+
+ depPaths = append(depPaths, getNdkAbiDumpTimestampFile(ctx))
+
+ // `m diff-ndk-abi` will diff the NDK ABI.
+ ctx.Build(pctx, android.BuildParams{
+ Rule: android.Touch,
+ Output: getNdkAbiDiffTimestampFile(ctx),
+ Implicits: depPaths,
+ })
+
+ ctx.Phony("diff-ndk-abi", getNdkAbiDiffTimestampFile(ctx))
+}