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android_system_core/init/Android.bp
T.J. Mercier ae4ce8ccc5 libprocessgroup: Remove cgroup.rc file 
The cgroup.rc file was introduced in 192aee782 ("libprocessgroup: Add
support for task profiles") back with the initial support for task
profiles. It was intended to optimize performance associated with cgroup
operations. However over time, supporting this file led to making
libprocessgroup code more complicated (such as the cgrouprc LLNDK
interface), and the file ended up getting mmaped into nearly every
process on Android even though only a handful of them actually use it.
Replacing this file with reading and parsing of cgroup information on
demand allows us to simplify and shrink libprocessgroup, and eliminates
thousands of unused mappings without negatively affecting boot time or
other performance metrics.

Bug: 349105928
Test: Verified with memcg v2 and MaxActivationDepth 1 on Cuttlefish, Raven, and Mokey
Change-Id: Ic3f01fdf7fda89a56ab80657e1cf4573156273e6
2024-10-03 17:01:34 +00:00

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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.
//
package {
default_applicable_licenses: ["system_core_init_license"],
}
// Added automatically by a large-scale-change
// See: http://go/android-license-faq
license {
name: "system_core_init_license",
visibility: [":__subpackages__"],
license_kinds: [
"SPDX-license-identifier-Apache-2.0",
],
license_text: [
"NOTICE",
],
}
init_common_sources = [
"action.cpp",
"action_manager.cpp",
"action_parser.cpp",
"capabilities.cpp",
"epoll.cpp",
"import_parser.cpp",
"interprocess_fifo.cpp",
"keychords.cpp",
"parser.cpp",
"property_type.cpp",
"rlimit_parser.cpp",
"service.cpp",
"service_list.cpp",
"service_parser.cpp",
"service_utils.cpp",
"subcontext.cpp",
"subcontext.proto",
"tokenizer.cpp",
"util.cpp",
]
init_device_sources = [
"apex_init_util.cpp",
"block_dev_initializer.cpp",
"bootchart.cpp",
"builtins.cpp",
"devices.cpp",
"firmware_handler.cpp",
"first_stage_console.cpp",
"first_stage_init.cpp",
"first_stage_mount.cpp",
"fscrypt_init_extensions.cpp",
"init.cpp",
"lmkd_service.cpp",
"modalias_handler.cpp",
"mount_handler.cpp",
"mount_namespace.cpp",
"persistent_properties.cpp",
"persistent_properties.proto",
"property_service.cpp",
"property_service.proto",
"reboot.cpp",
"reboot_utils.cpp",
"security.cpp",
"selabel.cpp",
"selinux.cpp",
"sigchld_handler.cpp",
"snapuserd_transition.cpp",
"switch_root.cpp",
"uevent_listener.cpp",
"ueventd.cpp",
"ueventd_parser.cpp",
]
soong_config_module_type {
name: "libinit_cc_defaults",
module_type: "cc_defaults",
config_namespace: "ANDROID",
bool_variables: [
"PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT",
"release_write_appcompat_override_system_properties",
],
properties: [
"cflags",
],
}
libinit_cc_defaults {
name: "init_defaults",
sanitize: {
misc_undefined: ["signed-integer-overflow"],
},
cflags: [
"-DALLOW_FIRST_STAGE_CONSOLE=0",
"-DALLOW_LOCAL_PROP_OVERRIDE=0",
"-DALLOW_PERMISSIVE_SELINUX=0",
"-DANDROID_BASE_UNIQUE_FD_DISABLE_IMPLICIT_CONVERSION",
"-DDUMP_ON_UMOUNT_FAILURE=0",
"-DINIT_FULL_SOURCES",
"-DINSTALL_DEBUG_POLICY_TO_SYSTEM_EXT=0",
"-DLOG_UEVENTS=0",
"-DREBOOT_BOOTLOADER_ON_PANIC=0",
"-DSHUTDOWN_ZERO_TIMEOUT=0",
"-DWORLD_WRITABLE_KMSG=0",
"-Wall",
"-Werror",
"-Wextra",
"-Wno-unused-parameter",
"-Wthread-safety",
],
product_variables: {
debuggable: {
cppflags: [
"-UALLOW_FIRST_STAGE_CONSOLE",
"-DALLOW_FIRST_STAGE_CONSOLE=1",
"-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"],
},
},
soong_config_variables: {
PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT: {
cflags: [
"-UINSTALL_DEBUG_POLICY_TO_SYSTEM_EXT",
"-DINSTALL_DEBUG_POLICY_TO_SYSTEM_EXT=1",
],
},
release_write_appcompat_override_system_properties: {
cflags: ["-DWRITE_APPCOMPAT_OVERRIDE_SYSTEM_PROPERTIES"],
},
},
static_libs: [
"libavb",
"libavf_cc_flags",
"libbootloader_message",
"liblmkd_utils",
"liblz4",
"libzstd",
"libmodprobe",
"libprocinfo",
"libprotobuf-cpp-lite",
"libpropertyinfoserializer",
"libpropertyinfoparser",
"libsnapshot_cow",
"libsnapshot_init",
"libxml2",
"lib_apex_manifest_proto_lite",
"update_metadata-protos",
],
shared_libs: [
"libbase",
"libcutils",
"libdl",
"libext4_utils",
"libfs_mgr",
"libgsi",
"liblog",
"liblogwrap",
"liblp",
"libprocessgroup",
"libprocessgroup_setup",
"libselinux",
"libunwindstack",
"libutils",
"libvendorsupport",
],
header_libs: ["bionic_libc_platform_headers"],
bootstrap: true,
visibility: [":__subpackages__"],
}
cc_library_headers {
name: "libinit_headers",
export_include_dirs: ["."],
visibility: [":__subpackages__"],
}
cc_defaults {
name: "libinit_defaults",
recovery_available: true,
defaults: [
"init_defaults",
"selinux_policy_version",
],
srcs: init_common_sources + init_device_sources,
export_include_dirs: ["."],
generated_sources: [
"apex-info-list",
],
whole_static_libs: [
"libcap",
],
header_libs: ["bootimg_headers"],
proto: {
type: "lite",
export_proto_headers: true,
},
target: {
recovery: {
cflags: ["-DRECOVERY"],
exclude_static_libs: [
"libxml2",
],
exclude_generated_sources: [
"apex-info-list",
],
exclude_shared_libs: [
"libbinder",
"libutils",
],
},
},
}
cc_library_static {
name: "libinit",
defaults: ["libinit_defaults"],
}
cc_library_static {
name: "libinit.microdroid",
defaults: [
"avf_build_flags_cc",
"libinit_defaults",
],
recovery_available: false,
cflags: ["-DMICRODROID=1"],
}
phony {
name: "init",
required: [
"init_second_stage",
],
}
cc_defaults {
name: "init_second_stage_defaults",
recovery_available: true,
stem: "init",
defaults: ["init_defaults"],
srcs: ["main.cpp"],
symlinks: ["ueventd"],
}
cc_binary {
name: "init_second_stage",
defaults: ["init_second_stage_defaults"],
static_libs: ["libinit"],
visibility: ["//visibility:any_system_partition"],
target: {
platform: {
required: [
"init.rc",
"ueventd.rc",
"e2fsdroid",
"extra_free_kbytes",
"make_f2fs",
"mke2fs",
"sload_f2fs",
],
},
recovery: {
cflags: ["-DRECOVERY"],
exclude_static_libs: [
"libxml2",
],
exclude_shared_libs: [
"libbinder",
"libutils",
],
required: [
"init_recovery.rc",
"ueventd.rc.recovery",
"e2fsdroid.recovery",
"make_f2fs.recovery",
"mke2fs.recovery",
"sload_f2fs.recovery",
],
},
},
}
cc_binary {
name: "init_second_stage.microdroid",
defaults: [
"avf_build_flags_cc",
"init_second_stage_defaults",
],
recovery_available: false,
static_libs: ["libinit.microdroid"],
cflags: ["-DMICRODROID=1"],
no_full_install: true,
visibility: ["//packages/modules/Virtualization/build/microdroid"],
}
soong_config_module_type {
name: "init_first_stage_cc_defaults",
module_type: "cc_defaults",
config_namespace: "ANDROID",
bool_variables: ["BOARD_USES_RECOVERY_AS_BOOT"],
properties: ["no_full_install"],
}
// Do not install init_first_stage even with mma if we're system-as-root.
// Otherwise, it will overwrite the symlink.
init_first_stage_cc_defaults {
name: "init_first_stage_defaults",
soong_config_variables: {
BOARD_USES_RECOVERY_AS_BOOT: {
no_full_install: true,
},
},
stem: "init",
srcs: [
"block_dev_initializer.cpp",
"devices.cpp",
"first_stage_console.cpp",
"first_stage_init.cpp",
"first_stage_main.cpp",
"first_stage_mount.cpp",
"reboot_utils.cpp",
"selabel.cpp",
"service_utils.cpp",
"snapuserd_transition.cpp",
"switch_root.cpp",
"uevent_listener.cpp",
"util.cpp",
],
static_libs: [
"libfs_avb",
"libavf_cc_flags",
"libfs_mgr",
"libfec",
"libfec_rs",
"libsquashfs_utils",
"libcrypto_utils",
"libavb",
"liblp",
"libcutils",
"libbase",
"liblog",
"libcrypto_static",
"libselinux",
"libcap",
"libgsi",
"liblzma",
"libunwindstack_no_dex",
"libmodprobe",
"libext2_uuid",
"libprotobuf-cpp-lite",
"libsnapshot_cow",
"liblz4",
"libzstd",
"libsnapshot_init",
"update_metadata-protos",
"libprocinfo",
],
static_executable: true,
system_shared_libs: [],
cflags: [
"-Wall",
"-Wextra",
"-Wno-unused-parameter",
"-Werror",
"-DALLOW_FIRST_STAGE_CONSOLE=0",
"-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",
"-DLOG_UEVENTS=0",
"-DSEPOLICY_VERSION=30", // TODO(jiyong): externalize the version number
],
product_variables: {
debuggable: {
cflags: [
"-UALLOW_FIRST_STAGE_CONSOLE",
"-DALLOW_FIRST_STAGE_CONSOLE=1",
"-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: {
cflags: [
"-USHUTDOWN_ZERO_TIMEOUT",
"-DSHUTDOWN_ZERO_TIMEOUT=1",
],
},
},
sanitize: {
misc_undefined: ["signed-integer-overflow"],
// First stage init is weird: it may start without stdout/stderr, and no /proc.
hwaddress: false,
memtag_stack: false,
},
// Install adb_debug.prop into debug ramdisk.
// This allows adb root on a user build, when debug ramdisk is used.
required: ["adb_debug.prop"],
ramdisk: true,
install_in_root: true,
}
cc_binary {
name: "init_first_stage",
defaults: ["init_first_stage_defaults"],
}
cc_binary {
name: "init_first_stage.microdroid",
defaults: [
"avf_build_flags_cc",
"init_first_stage_defaults",
],
cflags: ["-DMICRODROID=1"],
no_full_install: true,
}
phony {
name: "init_system",
required: ["init_second_stage"],
}
// Tests
// ------------------------------------------------------------------------------
cc_test {
// Note: This is NOT a CTS test. See b/320800872
name: "CtsInitTestCases",
defaults: ["init_defaults"],
require_root: true,
compile_multilib: "first",
srcs: [
"devices_test.cpp",
"epoll_test.cpp",
"firmware_handler_test.cpp",
"init_test.cpp",
"interprocess_fifo_test.cpp",
"keychords_test.cpp",
"oneshot_on_test.cpp",
"persistent_properties_test.cpp",
"property_service_test.cpp",
"property_type_test.cpp",
"reboot_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: [
"libgmock",
"libinit",
],
test_suites: [
"device-tests",
],
}
cc_benchmark {
name: "init_benchmarks",
defaults: ["init_defaults"],
srcs: [
"subcontext_benchmark.cpp",
],
static_libs: ["libinit"],
}
cc_defaults {
name: "libinit_test_utils_libraries_defaults",
shared_libs: [
"libbase",
"libcutils",
"libselinux",
"liblog",
"libprocessgroup",
"libprotobuf-cpp-lite",
],
static_libs: [
"libfs_mgr",
"libhidl-gen-utils",
],
}
cc_library_static {
name: "libinit_test_utils",
defaults: ["libinit_test_utils_libraries_defaults"],
cflags: [
"-Wall",
"-Wextra",
"-Wno-unused-parameter",
"-Werror",
],
srcs: init_common_sources + [
"test_utils/service_utils.cpp",
],
whole_static_libs: [
"libcap",
],
export_include_dirs: ["test_utils/include"], // for tests
header_libs: ["bionic_libc_platform_headers"],
product_variables: {
shipping_api_level: {
cflags: ["-DBUILD_SHIPPING_API_LEVEL=%s"],
},
},
}
// Host Verifier
// ------------------------------------------------------------------------------
genrule {
name: "generated_stub_builtin_function_map",
tool_files: ["host_builtin_map.py"],
out: ["generated_stub_builtin_function_map.h"],
srcs: [
"builtins.cpp",
"check_builtins.cpp",
],
cmd: "$(location host_builtin_map.py) --builtins $(location builtins.cpp) --check_builtins $(location check_builtins.cpp) > $(out)",
}
cc_defaults {
name: "init_host_defaults",
host_supported: true,
cflags: [
"-Wall",
"-Wextra",
"-Wno-unused-parameter",
"-Werror",
],
static_libs: [
"libbase",
"libselinux",
"libpropertyinfoserializer",
"libpropertyinfoparser",
],
whole_static_libs: ["libcap"],
shared_libs: [
"libcutils",
"liblog",
"libprocessgroup",
"libprotobuf-cpp-lite",
],
proto: {
type: "lite",
},
target: {
android: {
enabled: false,
},
darwin: {
enabled: false,
},
},
product_variables: {
shipping_api_level: {
cflags: ["-DBUILD_SHIPPING_API_LEVEL=%s"],
},
},
}
cc_binary {
name: "host_init_verifier",
defaults: ["init_host_defaults"],
srcs: [
"check_builtins.cpp",
"host_import_parser.cpp",
"host_init_verifier.cpp",
"interface_utils.cpp",
] + init_common_sources,
generated_headers: [
"generated_android_ids",
"generated_stub_builtin_function_map",
],
shared_libs: [
"libhidl-gen-utils",
"libhidlmetadata",
],
}
genrule {
name: "noop_builtin_function_map",
tool_files: ["host_builtin_map.py"],
out: ["noop_builtin_function_map.h"],
srcs: [
"builtins.cpp",
"noop_builtins.cpp",
],
cmd: "$(location host_builtin_map.py) --builtins $(location builtins.cpp) --check_builtins $(location noop_builtins.cpp) > $(out)",
}
cc_library_host_static {
name: "libinit_host",
defaults: ["init_host_defaults"],
srcs: [
"noop_builtins.cpp",
] + init_common_sources,
export_include_dirs: ["."],
generated_headers: [
"noop_builtin_function_map",
],
proto: {
export_proto_headers: true,
},
visibility: [
// host_apex_verifier performs a subset of init.rc validation
"//system/apex/tools",
],
}
sh_binary {
name: "extra_free_kbytes",
src: "extra_free_kbytes.sh",
filename_from_src: true,
}
phony {
name: "init_vendor",
required: select(soong_config_variable("ANDROID", "BOARD_USES_RECOVERY_AS_BOOT"), {
true: [],
default: ["init_first_stage"],
}),
}
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