platform_build_soong/cc/testing.go
Peter Collingbourne e5ba28648f build: Link the unwinder dynamically into platform and vendor binaries.
Instead of linking the unwinder statically into every binary, link it
dynamically, by exporting the symbols from libc.so. This has a number
of advantages:

- Reduces image size (system.img size decreases by 1.7MB on walleye-userdebug,
  and 1.2MB on crosshatch-userdebug).
- Allows us to easily change/upgrade the unwinder throughout the system,
  including vendor prebuilts.
- Allows code outside of libc++ to define custom personality routines.
  Previously, personality routines would call the unwinder routines in the
  local binary, which would cause problems with unwinders with global state
  (such as the libgcc unwinder) if the copy of the unwinder used for unwinding
  (normally libc++'s copy) were different from the copy linked against the
  personality routine.

Bug: 144430859
Change-Id: I3b2a4a3ee58c6777989f811e19a3aeb47c0945bd
2020-01-10 11:38:30 -08:00

326 lines
7 KiB
Go

// Copyright (C) 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 cc
import (
"android/soong/android"
)
func RegisterRequiredBuildComponentsForTest(ctx android.RegistrationContext) {
RegisterPrebuiltBuildComponents(ctx)
android.RegisterPrebuiltMutators(ctx)
RegisterCCBuildComponents(ctx)
RegisterLibraryBuildComponents(ctx)
ctx.RegisterModuleType("toolchain_library", ToolchainLibraryFactory)
ctx.RegisterModuleType("llndk_library", LlndkLibraryFactory)
ctx.RegisterModuleType("cc_object", ObjectFactory)
}
func GatherRequiredDepsForTest(os android.OsType) string {
ret := `
toolchain_library {
name: "libatomic",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libcompiler_rt-extras",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.builtins-arm-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.builtins-aarch64-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.builtins-i686-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.builtins-x86_64-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.fuzzer-arm-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.fuzzer-aarch64-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.fuzzer-i686-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.fuzzer-x86_64-android",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libclang_rt.fuzzer-x86_64",
vendor_available: true,
recovery_available: true,
src: "",
}
// Needed for sanitizer
cc_prebuilt_library_shared {
name: "libclang_rt.ubsan_standalone-aarch64-android",
vendor_available: true,
recovery_available: true,
srcs: [""],
}
toolchain_library {
name: "libgcc",
vendor_available: true,
recovery_available: true,
src: "",
}
toolchain_library {
name: "libgcc_stripped",
vendor_available: true,
recovery_available: true,
src: "",
}
cc_library {
name: "libc",
no_libcrt: true,
nocrt: true,
stl: "none",
system_shared_libs: [],
recovery_available: true,
}
llndk_library {
name: "libc",
symbol_file: "",
}
cc_library {
name: "libm",
no_libcrt: true,
nocrt: true,
stl: "none",
system_shared_libs: [],
recovery_available: true,
}
llndk_library {
name: "libm",
symbol_file: "",
}
cc_library {
name: "libdl",
no_libcrt: true,
nocrt: true,
stl: "none",
system_shared_libs: [],
recovery_available: true,
}
llndk_library {
name: "libdl",
symbol_file: "",
}
cc_library {
name: "libft2",
no_libcrt: true,
nocrt: true,
system_shared_libs: [],
recovery_available: true,
}
llndk_library {
name: "libft2",
symbol_file: "",
vendor_available: false,
}
cc_library {
name: "libc++_static",
no_libcrt: true,
nocrt: true,
system_shared_libs: [],
stl: "none",
vendor_available: true,
recovery_available: true,
}
cc_library {
name: "libc++",
no_libcrt: true,
nocrt: true,
system_shared_libs: [],
stl: "none",
vendor_available: true,
recovery_available: true,
vndk: {
enabled: true,
support_system_process: true,
},
}
cc_library {
name: "libc++demangle",
no_libcrt: true,
nocrt: true,
system_shared_libs: [],
stl: "none",
host_supported: false,
vendor_available: true,
recovery_available: true,
}
cc_library {
name: "libunwind_llvm",
no_libcrt: true,
nocrt: true,
system_shared_libs: [],
stl: "none",
vendor_available: true,
recovery_available: true,
}
cc_object {
name: "crtbegin_so",
recovery_available: true,
vendor_available: true,
stl: "none",
}
cc_object {
name: "crtbegin_dynamic",
recovery_available: true,
vendor_available: true,
}
cc_object {
name: "crtbegin_static",
recovery_available: true,
vendor_available: true,
}
cc_object {
name: "crtend_so",
recovery_available: true,
vendor_available: true,
stl: "none",
}
cc_object {
name: "crtend_android",
recovery_available: true,
vendor_available: true,
}
cc_library {
name: "libprotobuf-cpp-lite",
}
`
if os == android.Fuchsia {
ret += `
cc_library {
name: "libbioniccompat",
stl: "none",
}
cc_library {
name: "libcompiler_rt",
stl: "none",
}
`
}
return ret
}
func TestConfig(buildDir string, os android.OsType, env map[string]string,
bp string, fs map[string][]byte) android.Config {
// add some modules that are required by the compiler and/or linker
bp = bp + GatherRequiredDepsForTest(os)
mockFS := map[string][]byte{
"foo.c": nil,
"foo.lds": nil,
"bar.c": nil,
"baz.c": nil,
"baz.o": nil,
"a.proto": nil,
"b.aidl": nil,
"sub/c.aidl": nil,
"my_include": nil,
"foo.map.txt": nil,
"liba.so": nil,
}
for k, v := range fs {
mockFS[k] = v
}
var config android.Config
if os == android.Fuchsia {
config = android.TestArchConfigFuchsia(buildDir, env, bp, mockFS)
} else {
config = android.TestArchConfig(buildDir, env, bp, mockFS)
}
return config
}
func CreateTestContext() *android.TestContext {
ctx := android.NewTestArchContext()
ctx.RegisterModuleType("cc_binary", BinaryFactory)
ctx.RegisterModuleType("cc_binary_host", binaryHostFactory)
ctx.RegisterModuleType("cc_fuzz", FuzzFactory)
ctx.RegisterModuleType("cc_test", TestFactory)
ctx.RegisterModuleType("llndk_headers", llndkHeadersFactory)
ctx.RegisterModuleType("ndk_library", NdkLibraryFactory)
ctx.RegisterModuleType("vendor_public_library", vendorPublicLibraryFactory)
ctx.RegisterModuleType("filegroup", android.FileGroupFactory)
ctx.RegisterModuleType("vndk_prebuilt_shared", VndkPrebuiltSharedFactory)
ctx.RegisterModuleType("vndk_libraries_txt", VndkLibrariesTxtFactory)
RegisterRequiredBuildComponentsForTest(ctx)
ctx.PreArchMutators(android.RegisterDefaultsPreArchMutators)
ctx.RegisterSingletonType("vndk-snapshot", VndkSnapshotSingleton)
return ctx
}