| # Copyright 2018 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import("//base/android/linker/config.gni") |
| import("//build/config/android/config.gni") |
| import("//build/config/android/linker_version_script.gni") |
| import("//build/config/compiler/compiler.gni") |
| import("//build/partitioned_shared_library.gni") |
| import("//chrome/android/modules/buildflags.gni") |
| import("//device/vr/buildflags/buildflags.gni") |
| |
| # TODO(cjgrant): Remove these variables once downstream stops using them. |
| bundle_library_suffix = "" |
| apk_pak_asset_type = "_apk" |
| |
| # This template contains all common configuration for native shared libraries, |
| # including libchrome, monochrome, standalone webview (also called monochrome), |
| # and libchromefortest (used by chrome_public_test_apk). |
| # |
| # Variables: |
| # is_monochrome: Optional. If set, the library is for use in monochrome. |
| # is_webview: If true, the library is for webview, and browser-specific |
| # config is skipped. |
| # module_descs: Optional. Descriptors of feature modules for which library |
| # targets should be auto-generated. The targets are called |
| # "${target_name}_<module name>" and can be depended on like shared_library |
| # targets. If enabled, the library targets create partitions containing the |
| # module's native code. Otherwise, they simply depend on the module's |
| # native_deps. See //chrome/android/modules/chrome_feature_modules.gni for |
| # the descriptor format. |
| template("chrome_common_shared_library") { |
| _is_monochrome = defined(invoker.is_monochrome) && invoker.is_monochrome |
| _is_webview = defined(invoker.is_webview) && invoker.is_webview |
| _export_java_symbols = _is_monochrome || _is_webview |
| _collect_inputs_only = |
| defined(invoker.collect_inputs_only) && invoker.collect_inputs_only |
| |
| # When _collect_inputs_only && !(!_is_webview && enable_vr). |
| not_needed(["_export_java_symbols"]) |
| |
| # Create a partitioned libraries if the build config supports it, and the |
| # invoker has supplied module descriptors. |
| _generate_partitions = defined(invoker.module_descs) && |
| use_native_partitions && !_collect_inputs_only |
| _module_descs = [] |
| if (defined(invoker.module_descs)) { |
| _module_descs = invoker.module_descs |
| } |
| |
| if (!_collect_inputs_only) { |
| _linker_script_target = "${target_name}_linker_script" |
| _linker_script = "$target_gen_dir/${target_name}_linker_script.txt" |
| |
| # Create a custom linker script based on JNI and feature module requirements. |
| generate_linker_version_script(_linker_script_target) { |
| linker_script = _linker_script |
| export_java_symbols = _export_java_symbols |
| export_feature_registrations = true |
| if (_generate_partitions) { |
| export_symbol_allowlist_files = [] |
| foreach(_module_desc, invoker.module_descs) { |
| if (defined(_module_desc.native_entrypoints)) { |
| export_symbol_allowlist_files += [ _module_desc.native_entrypoints ] |
| } |
| } |
| } |
| } |
| } |
| |
| if (_generate_partitions) { |
| _target_type = "partitioned_shared_library" |
| } else { |
| _target_type = "shared_library" |
| } |
| |
| target(_target_type, target_name) { |
| forward_variables_from(invoker, "*") |
| |
| if (!_is_webview) { |
| deps += [ "//chrome:chrome_android_core" ] |
| } |
| |
| configs += [ "//build/config/compiler:chrome_orderfile_config" ] |
| |
| # Use a dynamically-generated linker script. |
| configs -= [ "//build/config/android:hide_all_but_jni_onload" ] |
| if (!defined(ldflags)) { |
| ldflags = [] |
| } |
| if (_collect_inputs_only) { |
| metadata = { |
| } |
| ldflags += [ "--collect-inputs-only" ] |
| } else { |
| deps += [ ":$_linker_script_target" ] |
| inputs = [ "$_linker_script" ] |
| ldflags += [ "-Wl,--version-script=" + |
| rebase_path(_linker_script, root_build_dir) ] |
| } |
| |
| # Handle VR JNI registration and dependencies. |
| if (!_is_webview && enable_vr) { |
| if (_export_java_symbols) { |
| # NOTE: While this file is named *_monochrome.cc, it just contains an |
| # empty vr::RegisterJni() function that returns true. |
| sources += [ "../browser/android/vr/register_jni_monochrome.cc" ] |
| } else { |
| sources += [ "../browser/android/vr/register_jni.cc" ] |
| deps += [ |
| "//chrome/browser/android/vr:jni_registration($default_toolchain)", |
| ] |
| } |
| } |
| |
| if (_generate_partitions) { |
| partitions = [] |
| foreach(_module_desc, _module_descs) { |
| if (defined(_module_desc.native_deps)) { |
| partitions += [ _module_desc.name ] |
| deps += _module_desc.native_deps |
| } |
| } |
| } else if (_collect_inputs_only) { |
| foreach(_module_desc, _module_descs) { |
| if (defined(_module_desc.native_deps)) { |
| deps += _module_desc.native_deps |
| } |
| } |
| } |
| |
| # Compress relocations if needed. |
| if ((_is_monochrome || _is_webview || chromium_linker_supported) && |
| use_lld) { |
| configs += [ "//build/config/android:lld_pack_relocations" ] |
| } |
| |
| if ((_is_monochrome || _is_webview || chromium_linker_supported) && |
| target_cpu != "mipsel" && target_cpu != "mips64el") { |
| # By default, the static linker will create ELF executables with both |
| # SysV and GNU hash tables. Now that the chromium linker supports the GNU |
| # format, which is considerably smaller, ensure that the SysV one is |
| # never compiled in the final library (http://crbug.com/742525#c28). GNU |
| # hash support was added in Android M. Also not supported on MIPS |
| # architecture (http://crbug.com/811306). |
| ldflags += [ "-Wl,--hash-style=gnu" ] |
| } |
| |
| # See crbug.com/705088. |
| if (target_cpu == "arm" && is_asan) { |
| ldflags += [ "-Wl,--long-plt" ] |
| } |
| } |
| |
| if (!_generate_partitions && !_collect_inputs_only) { |
| # Make helper targets so that we always have module native targets no matter |
| # whether partitions are enabled. |
| foreach(_module_desc, _module_descs) { |
| if (defined(_module_desc.native_deps)) { |
| group("${target_name}_${_module_desc.name}") { |
| forward_variables_from(invoker, [ "testonly" ]) |
| deps = _module_desc.native_deps |
| } |
| } |
| } |
| } |
| } |