platform_build_soong/cc/genrule.go

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// Copyright 2017 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"
"android/soong/genrule"
)
func init() {
android.RegisterModuleType("cc_genrule", genRuleFactory)
}
type GenruleExtraProperties struct {
Vendor_available *bool
Recovery_available *bool
Add support for versioned stubs. A cc_library or cc_library_shared can be configured to have stubs variants of the lib. cc_library_shared { name: "libfoo", srcs: ["foo.cpp"], stubs: { symbol_file: "foo.map.txt", versions: ["1", "2", "3"], }, } then, stubs variants of libfoo for version 1, 2, and 3 are created from foo.map.txt. Each version has the symbols from the map file where each symbol is annotated with the version that the symbol was introduced via the 'introduced=<ver>' syntax. The versions don't need to be in sync with the platform versions (e.g., P for 28). The versions are local to the library. For another library or executable to use the versioned stubs lib, use the new 'name#ver' syntax to specify the version: cc_binary { name: "test", .... shared_libs: ["libFoo#2"], } Internally, a new mutator 'version' is applied to all cc.Module objects. By default, a variant named 'impl' is created for the non-stub version. If the versions property is set, additional variations are created per a version with the mutable property BuildStubs set as true, which lets the compiler and the linker to build a stubs lib from the symbol file instead from the source files. This feature will be used to enforce stable interfaces among APEXs. When a lib foo in an APEX is depending on a lib bar in another APEX, then bar should have stable interface (in C lang) and foo should be depending on one of the stubs libs of bar. Only libraries in the same APEX as foo can link against non-stub version of it. Bug: 112672359 Test: m (cc_test added) Change-Id: I2488be0b9d7b7b8d7761234dc1c9c0e3add8601c
2018-10-15 21:25:07 +08:00
// This genrule is for recovery variant
InRecovery bool `blueprint:"mutated"`
}
// cc_genrule is a genrule that can depend on other cc_* objects.
// The cmd may be run multiple times, once for each of the different arch/etc
// variations.
func genRuleFactory() android.Module {
module := genrule.NewGenRule()
module.Extra = &GenruleExtraProperties{}
module.AddProperties(module.Extra)
android.InitAndroidArchModule(module, android.HostAndDeviceSupported, android.MultilibBoth)
android.InitApexModule(module)
return module
}