Create a bp2build converter for ndk_prebuilt_*_stl
This module type will be converted to a cc_prebuilt_* bazel target. It
will provide
1. a prebuilt (.a/.so) file
2. headers (as -isystem)
Test: added a bp2build unit test
Bug: 298088835
Change-Id: Ib58cc7f6fde8f4ca34516f6f18a4c048a02a049a
diff --git a/cc/ndk_prebuilt.go b/cc/ndk_prebuilt.go
index 842bdf6..c2382b3 100644
--- a/cc/ndk_prebuilt.go
+++ b/cc/ndk_prebuilt.go
@@ -15,9 +15,11 @@
package cc
import (
+ "path/filepath"
"strings"
"android/soong/android"
+ "android/soong/bazel"
)
func init() {
@@ -64,6 +66,7 @@
module.Properties.Sdk_version = StringPtr("minimum")
module.Properties.AlwaysSdk = true
module.stl.Properties.Stl = StringPtr("none")
+ module.bazelable = true
return module.Init()
}
@@ -84,6 +87,7 @@
module.Properties.AlwaysSdk = true
module.Properties.Sdk_version = StringPtr("current")
module.stl.Properties.Stl = StringPtr("none")
+ module.bazelable = true
return module.Init()
}
@@ -131,3 +135,81 @@
return lib
}
+
+var (
+ archToAbiDirMap = map[string]string{
+ "android_arm": "armeabi-v7a",
+ "android_arm64": "arm64-v8a",
+ "android_riscv64": "riscv64",
+ "android_x86": "x86",
+ "android_x86_64": "x86_64",
+ }
+)
+
+// stlSrcBp2build returns a bazel label for the checked-in .so/.a file
+// It contains a select statement for each ABI
+func stlSrcBp2build(ctx android.TopDownMutatorContext, c *Module) bazel.LabelAttribute {
+ libName := strings.TrimPrefix(c.Name(), "ndk_")
+ libExt := ".so" // TODO - b/201079053: Support windows
+ if ctx.ModuleType() == "ndk_prebuilt_static_stl" {
+ libExt = ".a"
+ }
+ src := bazel.LabelAttribute{}
+ for arch, abiDir := range archToAbiDirMap {
+ srcPath := filepath.Join(libDir, abiDir, libName+libExt)
+ src.SetSelectValue(
+ bazel.OsArchConfigurationAxis,
+ arch,
+ android.BazelLabelForModuleSrcSingle(ctx, srcPath),
+ )
+ }
+ return src
+}
+
+// stlIncludesBp2build returns the includes exported by the STL
+func stlIncludesBp2build(c *Module) bazel.StringListAttribute {
+ linker, _ := c.linker.(*ndkPrebuiltStlLinker)
+ includeDirs := append(
+ []string{},
+ linker.libraryDecorator.flagExporter.Properties.Export_include_dirs...,
+ )
+ includeDirs = append(
+ includeDirs,
+ linker.libraryDecorator.flagExporter.Properties.Export_system_include_dirs...,
+ )
+ return bazel.MakeStringListAttribute(android.FirstUniqueStrings(includeDirs))
+}
+
+func ndkPrebuiltStlBp2build(ctx android.TopDownMutatorContext, c *Module) {
+ if ctx.ModuleType() == "ndk_prebuilt_static_stl" {
+ ndkPrebuiltStaticStlBp2build(ctx, c)
+ } else {
+ ndkPrebuiltSharedStlBp2build(ctx, c)
+ }
+}
+
+func ndkPrebuiltStaticStlBp2build(ctx android.TopDownMutatorContext, c *Module) {
+ props := bazel.BazelTargetModuleProperties{
+ Rule_class: "cc_prebuilt_library_static",
+ Bzl_load_location: "//build/bazel/rules/cc:cc_prebuilt_library_static.bzl",
+ }
+ attrs := &bazelPrebuiltLibraryStaticAttributes{
+ Static_library: stlSrcBp2build(ctx, c),
+ Export_system_includes: stlIncludesBp2build(c), // The exports are always as system
+ }
+ // TODO: min_sdk_version
+ ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: c.Name()}, attrs)
+}
+
+func ndkPrebuiltSharedStlBp2build(ctx android.TopDownMutatorContext, c *Module) {
+ props := bazel.BazelTargetModuleProperties{
+ Rule_class: "cc_prebuilt_library_shared",
+ Bzl_load_location: "//build/bazel/rules/cc:cc_prebuilt_library_shared.bzl",
+ }
+ attrs := &bazelPrebuiltLibrarySharedAttributes{
+ Shared_library: stlSrcBp2build(ctx, c),
+ Export_system_includes: stlIncludesBp2build(c), // The exports are always as system
+ }
+ // TODO: min_sdk_version
+ ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: c.Name()}, attrs)
+}