platform_system_core/init/Android.bp

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//
// Copyright (C) 2017 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.
//
cc_defaults {
name: "init_defaults",
cpp_std: "experimental",
sanitize: {
misc_undefined: ["signed-integer-overflow"],
},
cflags: [
"-DLOG_UEVENTS=0",
"-Wall",
"-Wextra",
"-Wno-unused-parameter",
"-Werror",
"-DALLOW_LOCAL_PROP_OVERRIDE=0",
"-DALLOW_PERMISSIVE_SELINUX=0",
"-DREBOOT_BOOTLOADER_ON_PANIC=0",
"-DWORLD_WRITABLE_KMSG=0",
"-DDUMP_ON_UMOUNT_FAILURE=0",
"-DSHUTDOWN_ZERO_TIMEOUT=0",
],
product_variables: {
debuggable: {
cppflags: [
"-UALLOW_LOCAL_PROP_OVERRIDE",
"-DALLOW_LOCAL_PROP_OVERRIDE=1",
"-UALLOW_PERMISSIVE_SELINUX",
"-DALLOW_PERMISSIVE_SELINUX=1",
"-UREBOOT_BOOTLOADER_ON_PANIC",
"-DREBOOT_BOOTLOADER_ON_PANIC=1",
"-UWORLD_WRITABLE_KMSG",
"-DWORLD_WRITABLE_KMSG=1",
"-UDUMP_ON_UMOUNT_FAILURE",
"-DDUMP_ON_UMOUNT_FAILURE=1",
],
},
eng: {
cppflags: [
"-USHUTDOWN_ZERO_TIMEOUT",
"-DSHUTDOWN_ZERO_TIMEOUT=1",
],
},
uml: {
cppflags: ["-DUSER_MODE_LINUX"],
},
},
static_libs: [
"libbootloader_message",
"libfs_mgr",
"libfec",
"libfec_rs",
"libhidl-gen-utils",
"libsquashfs_utils",
"liblogwrap",
"libext4_utils",
"libseccomp_policy",
"libcrypto_utils",
"libsparse",
"libprocessgroup",
"libavb",
"libkeyutils",
"libprotobuf-cpp-lite",
"libpropertyinfoserializer",
"libpropertyinfoparser",
],
shared_libs: [
"libcutils",
"libbase",
"libc",
"liblog",
"libcrypto",
"libc++",
"libdl",
"libz",
"libselinux",
],
}
cc_library_static {
name: "libinit",
defaults: ["init_defaults"],
srcs: [
"action.cpp",
"action_manager.cpp",
"action_parser.cpp",
"bootchart.cpp",
"builtins.cpp",
"capabilities.cpp",
"descriptors.cpp",
"devices.cpp",
"epoll.cpp",
"firmware_handler.cpp",
"import_parser.cpp",
"init.cpp",
"init_first_stage.cpp",
"keychords.cpp",
"log.cpp",
"parser.cpp",
"persistent_properties.cpp",
"persistent_properties.proto",
"property_service.cpp",
"property_type.cpp",
"reboot.cpp",
"security.cpp",
"selinux.cpp",
"service.cpp",
"sigchld_handler.cpp",
"subcontext.cpp",
"subcontext.proto",
"rlimit_parser.cpp",
"tokenizer.cpp",
"uevent_listener.cpp",
"ueventd.cpp",
"ueventd_parser.cpp",
"util.cpp",
"watchdogd.cpp",
],
whole_static_libs: ["libcap"],
header_libs: ["bootimg_headers"],
proto: {
type: "lite",
export_proto_headers: true,
},
}
/*
This is not yet ready, see the below TODOs for what is missing
cc_binary {
// TODO: Missing,
//LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
//LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_UNSTRIPPED)
name: "init",
defaults: ["init_defaults"],
required: [
"e2fsdroid",
"mke2fs",
"sload_f2fs",
"make_f2fs",
],
static_executable: true,
srcs: ["main.cpp"],
symlinks: [
"sbin/ueventd",
"sbin/watchdogd",
],
}
*/
// Tests
// ------------------------------------------------------------------------------
cc_test {
name: "init_tests",
defaults: ["init_defaults"],
srcs: [
"devices_test.cpp",
"init_test.cpp",
"keychords_test.cpp",
"persistent_properties_test.cpp",
"property_service_test.cpp",
"property_type_test.cpp",
init: introduce Result<T> for return values and error handling init tries to propagate error information up to build context before logging errors. This is a good thing, however too often init has the overly verbose paradigm for error handling, below: bool CalculateResult(const T& input, U* output, std::string* err) bool CalculateAndUseResult(const T& input, std::string* err) { U output; std::string calculate_result_err; if (!CalculateResult(input, &output, &calculate_result_err)) { *err = "CalculateResult " + input + " failed: " + calculate_result_err; return false; } UseResult(output); return true; } Even more common are functions that return only true/false but also require passing a std::string* err in order to see the error message. This change introduces a Result<T> that is use to either hold a successful return value of type T or to hold an error message as a std::string. If the functional only returns success or a failure with an error message, Result<Success> may be used. The classes Error and ErrnoError are used to indicate a failed Result<T>. A successful Result<T> is constructed implicitly from any type that can be implicitly converted to T or from the constructor arguments for T. This allows you to return a type T directly from a function that returns Result<T>. Error and ErrnoError are used to construct a Result<T> has failed. Each of these classes take an ostream as an input and are implicitly cast to a Result<T> containing that failure. ErrnoError() additionally appends ": " + strerror(errno) to the end of the failure string to aid in interacting with C APIs. The end result is that the above code snippet is turned into the much clearer example below: Result<U> CalculateResult(const T& input); Result<Success> CalculateAndUseResult(const T& input) { auto output = CalculateResult(input); if (!output) { return Error() << "CalculateResult " << input << " failed: " << output.error(); } UseResult(*output); return Success(); } This change also makes this conversion for some of the util.cpp functions that used the old paradigm. Test: boot bullhead, init unit tests Merged-In: I1e7d3a8820a79362245041251057fbeed2f7979b Change-Id: I1e7d3a8820a79362245041251057fbeed2f7979b
2017-08-03 21:54:07 +02:00
"result_test.cpp",
"rlimit_parser_test.cpp",
"service_test.cpp",
"subcontext_test.cpp",
"tokenizer_test.cpp",
"ueventd_parser_test.cpp",
"ueventd_test.cpp",
"util_test.cpp",
],
static_libs: ["libinit"],
test_suites: ["device-tests"],
}
cc_benchmark {
name: "init_benchmarks",
defaults: ["init_defaults"],
srcs: [
"subcontext_benchmark.cpp",
],
static_libs: ["libinit"],
}
// Host Verifier
// ------------------------------------------------------------------------------
genrule {
name: "generated_stub_builtin_function_map",
out: ["generated_stub_builtin_function_map.h"],
srcs: ["builtins.cpp"],
cmd: "sed -n '/Builtin-function-map start/{:a;n;/Builtin-function-map end/q;p;ba}' $(in) | sed -e 's/do_[^}]*/do_stub/g' > $(out)",
}
cc_binary {
name: "host_init_verifier",
host_supported: true,
cpp_std: "experimental",
cflags: [
"-Wall",
"-Wextra",
"-Wno-unused-parameter",
"-Werror",
],
static_libs: [
"libbase",
"libselinux",
],
whole_static_libs: ["libcap"],
shared_libs: [
"libprotobuf-cpp-lite",
"libhidl-gen-utils",
"libprocessgroup",
"liblog",
"libcutils",
],
srcs: [
"action.cpp",
"action_manager.cpp",
"action_parser.cpp",
"capabilities.cpp",
"descriptors.cpp",
"epoll.cpp",
"keychords.cpp",
"import_parser.cpp",
"host_import_parser.cpp",
"host_init_verifier.cpp",
"host_init_stubs.cpp",
"parser.cpp",
"rlimit_parser.cpp",
"tokenizer.cpp",
"service.cpp",
"subcontext.cpp",
"subcontext.proto",
"util.cpp",
],
proto: {
type: "lite",
},
generated_headers: [
"generated_stub_builtin_function_map",
"generated_android_ids"
],
target: {
android: {
enabled: false,
},
darwin: {
enabled: false,
},
},
}
subdirs = ["*"]