385fe692cc
By setting vendor_available, the following may become true:
* a prebuilt library from this release may be used at runtime by
in a later releasse (by vendor code compiled against this release).
so this library shouldn't depend on runtime state that may change
in the future.
* this library may be loaded twice into a single process (potentially
an old version and a newer version). The symbols will be isolated
using linker namespaces, but this may break assumptions about 1
library in 1 process (your singletons will run twice).
Background:
This means that these modules may be built and installed twice --
once for the system partition and once for the vendor partition. The
system version will build just like today, and will be used by the
framework components on /system. The vendor version will build
against a reduced set of exports and libraries -- similar to, but
separate from, the NDK. This means that all your dependencies must
also mark vendor_available.
At runtime, /system binaries will load libraries from /system/lib*,
while /vendor binaries will load libraries from /vendor/lib*. There
are some exceptions in both directions -- bionic(libc,etc) and liblog
are always loaded from /system. And SP-HALs (OpenGL, etc) may load
/vendor code into /system processes, but the dependencies of those
libraries will load from /vendor until it reaches a library that's
always on /system. In the SP-HAL case, if both framework and vendor
libraries depend on a library of the same name, both versions will be
loaded, but they will be isolated from each other.
It's possible to compile differently -- reducing your source files,
exporting different include directories, etc. For details see:
https://android-review.googlesource.com/368372
None of this is enabled unless the device opts into the system/vendor
split with BOARD_VNDK_VERSION := current.
Bug: 36426473
Bug: 36079834
Test: m -j libcutils
Test: attempt to compile with BOARD_VNDK_VERSION := current
Test: (sanity) boot internal marlin
(cherry picked from commit 9610c548a8)
Merged-In: I76f9b28ef08a26d84d1365881e00696cc1dcfe5d
Change-Id: I76f9b28ef08a26d84d1365881e00696cc1dcfe5d
160 lines
3.9 KiB
Text
160 lines
3.9 KiB
Text
//
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// Copyright (C) 2008 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// some files must not be compiled when building against Mingw
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// they correspond to features not used by our host development tools
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// which are also hard or even impossible to port to native Win32
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libcutils_nonwindows_sources = [
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"android_get_control_file.cpp",
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"fs.c",
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"multiuser.c",
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"socket_inaddr_any_server_unix.c",
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"socket_local_client_unix.c",
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"socket_local_server_unix.c",
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"socket_network_client_unix.c",
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"sockets_unix.cpp",
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"str_parms.c",
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]
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cc_library_headers {
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name: "libcutils_headers",
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vendor_available: true,
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host_supported: true,
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export_include_dirs: ["include"],
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target: {
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vendor: {
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export_include_dirs: ["include_vndk"],
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},
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linux_bionic: {
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enabled: true,
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},
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windows: {
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enabled: true,
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},
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},
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}
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cc_library {
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name: "libcutils",
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vendor_available: true,
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host_supported: true,
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srcs: [
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"config_utils.c",
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"fs_config.c",
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"canned_fs_config.c",
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"hashmap.c",
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"iosched_policy.c",
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"load_file.c",
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"native_handle.c",
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"open_memstream.c",
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"record_stream.c",
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"sched_policy.cpp",
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"sockets.cpp",
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"strdup16to8.c",
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"strdup8to16.c",
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"strlcpy.c",
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"threads.c",
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],
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target: {
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host: {
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srcs: ["dlmalloc_stubs.c"],
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},
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linux_bionic: {
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enabled: true,
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exclude_srcs: ["dlmalloc_stubs.c"],
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},
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not_windows: {
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srcs: libcutils_nonwindows_sources + [
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"ashmem-host.c",
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"trace-host.c",
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],
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},
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windows: {
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srcs: [
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"socket_inaddr_any_server_windows.c",
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"socket_network_client_windows.c",
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"sockets_windows.cpp",
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],
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enabled: true,
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shared: {
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enabled: false,
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},
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},
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android: {
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srcs: libcutils_nonwindows_sources + [
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"android_reboot.c",
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"ashmem-dev.c",
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"klog.cpp",
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"partition_utils.c",
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"properties.cpp",
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"qtaguid.c",
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"trace-dev.c",
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"uevent.c",
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],
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sanitize: {
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misc_undefined: ["integer"],
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},
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},
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android_arm: {
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srcs: ["arch-arm/memset32.S"],
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},
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android_arm64: {
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srcs: ["arch-arm64/android_memset.S"],
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},
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android_mips: {
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srcs: ["arch-mips/android_memset.c"],
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},
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android_mips64: {
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srcs: ["arch-mips/android_memset.c"],
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},
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android_x86: {
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srcs: [
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"arch-x86/android_memset16.S",
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"arch-x86/android_memset32.S",
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],
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},
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android_x86_64: {
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srcs: [
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"arch-x86_64/android_memset16.S",
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"arch-x86_64/android_memset32.S",
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],
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},
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},
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shared_libs: ["liblog"],
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header_libs: [
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"libcutils_headers",
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"libutils_headers",
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],
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export_header_lib_headers: ["libcutils_headers"],
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cflags: [
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"-Werror",
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"-Wall",
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"-Wextra",
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],
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clang: true,
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}
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subdirs = ["tests"]
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