platform_system_core/base/Android.bp

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//
// Copyright (C) 2015 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: "libbase_cflags_defaults",
cflags: [
"-Wall",
"-Werror",
"-Wextra",
],
target: {
android: {
cflags: [
"-D_FILE_OFFSET_BITS=64",
],
},
},
}
cc_library_headers {
name: "libbase_headers",
vendor_available: true,
ramdisk_available: true,
recovery_available: true,
host_supported: true,
native_bridge_supported: true,
export_include_dirs: ["include"],
target: {
linux_bionic: {
enabled: true,
},
windows: {
enabled: true,
},
},
apex_available: [
"//apex_available:anyapex",
"//apex_available:platform",
],
min_sdk_version: "29",
}
cc_defaults {
name: "libbase_defaults",
defaults: ["libbase_cflags_defaults"],
srcs: [
"abi_compatibility.cpp",
"chrono_utils.cpp",
"cmsg.cpp",
"file.cpp",
"liblog_symbols.cpp",
"logging.cpp",
"mapped_file.cpp",
"parsebool.cpp",
"parsenetaddress.cpp",
"process.cpp",
"properties.cpp",
"stringprintf.cpp",
"strings.cpp",
"threads.cpp",
"test_utils.cpp",
],
cppflags: ["-Wexit-time-destructors"],
shared_libs: ["liblog"],
target: {
android: {
sanitize: {
misc_undefined: ["integer"],
},
},
linux: {
srcs: [
"errors_unix.cpp",
],
},
darwin: {
srcs: [
"errors_unix.cpp",
],
},
linux_bionic: {
enabled: true,
},
windows: {
srcs: [
"errors_windows.cpp",
"utf8.cpp",
],
exclude_srcs: [
"cmsg.cpp",
],
enabled: true,
},
},
}
cc_library {
name: "libbase",
defaults: ["libbase_defaults"],
vendor_available: true,
ramdisk_available: true,
recovery_available: true,
host_supported: true,
native_bridge_supported: true,
vndk: {
enabled: true,
support_system_process: true,
},
header_libs: [
"libbase_headers",
],
export_header_lib_headers: ["libbase_headers"],
static_libs: ["fmtlib"],
whole_static_libs: ["fmtlib"],
export_static_lib_headers: ["fmtlib"],
apex_available: [
"//apex_available:anyapex",
"//apex_available:platform",
],
min_sdk_version: "29",
}
cc_library_static {
name: "libbase_ndk",
defaults: ["libbase_defaults"],
sdk_version: "current",
stl: "c++_static",
export_include_dirs: ["include"],
static_libs: ["fmtlib_ndk"],
whole_static_libs: ["fmtlib_ndk"],
export_static_lib_headers: ["fmtlib_ndk"],
}
// Tests
// ------------------------------------------------------------------------------
cc_test {
name: "libbase_test",
defaults: ["libbase_cflags_defaults"],
host_supported: true,
srcs: [
"cmsg_test.cpp",
"endian_test.cpp",
"errors_test.cpp",
"expected_test.cpp",
"file_test.cpp",
base: reimagine line splitting in logger.cpp Previously, we would split messages by line and call the logger function for each line. We would hold a lock during this, to ensure that multiple threads would not interleave their messages. There are a few problems with this approach: 1) Using a lock is not efficient and is not fork safe 2) With APEX, there is one lock per instance of libbase, so we must move the lock to a location where all instances can access it, or perform the line splitting in a way that does not require the lock. To solve these issues, we reimagine line splitting. 1) We move the lock out of the LogMessage::~LogMessage() and make it the logger's responsibility to split lines, giving the logger the option to lock or not. 2) We do not need any locks at all for StderrLogger. Instead, we generate a single string that contains all of the lines with their appropriate log header. A single write() call is used to output this at once. 3) Logd handles log messages with newlines correctly, however it only accepts up to a maximum size of log message. Therefore we separate the incoming log message into chunks, delimited by new lines, up to that maximum size, and send each of those to logd. Note that this is the strategy used in android.util.Log.printlns(). This should solve a majority of use cases, since the maximum size that logd accepts is nearly 4K, while remaining lock free. If interleaving messages absolutely must be avoided, a lock can still be used given 1) above. Bug: 65062446 Bug: 153824050 Test: logging, particularly multi-line stack traces, show correctly Test: existing and new unit tests Change-Id: Id0cb5669bee7f912da1e17f7010f0ee4c93be1e3
2020-04-17 22:05:11 +02:00
"logging_splitters_test.cpp",
"logging_test.cpp",
"macros_test.cpp",
"mapped_file_test.cpp",
"no_destructor_test.cpp",
"parsedouble_test.cpp",
"parsebool_test.cpp",
"parseint_test.cpp",
"parsenetaddress_test.cpp",
"process_test.cpp",
"properties_test.cpp",
"result_test.cpp",
"scopeguard_test.cpp",
"stringprintf_test.cpp",
"strings_test.cpp",
"test_main.cpp",
"test_utils_test.cpp",
],
target: {
android: {
sanitize: {
misc_undefined: ["integer"],
},
},
linux: {
srcs: ["chrono_utils_test.cpp"],
},
windows: {
srcs: ["utf8_test.cpp"],
cflags: ["-Wno-unused-parameter"],
enabled: true,
},
},
local_include_dirs: ["."],
shared_libs: ["libbase"],
compile_multilib: "both",
multilib: {
lib32: {
suffix: "32",
},
lib64: {
suffix: "64",
},
},
test_suites: ["device-tests"],
}
cc_test {
name: "libbase_tidy_test",
defaults: ["libbase_cflags_defaults"],
host_supported: true,
tidy: true,
tidy_checks_as_errors: ["bugprone-use-after-move"],
srcs: [
"tidy/unique_fd_test.cpp",
"tidy/unique_fd_test2.cpp",
],
shared_libs: ["libbase"],
test_suites: ["device_tests"],
}
cc_benchmark {
name: "libbase_benchmark",
defaults: ["libbase_cflags_defaults"],
srcs: ["format_benchmark.cpp"],
shared_libs: ["libbase"],
compile_multilib: "both",
multilib: {
lib32: {
suffix: "32",
},
lib64: {
suffix: "64",
},
},
}