| # Copyright (c) 2013 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("//build/config/allocator.gni") |
| import("//build/config/c++/c++.gni") |
| import("//build/config/chrome_build.gni") |
| import("//build/config/chromecast_build.gni") |
| import("//build/config/crypto.gni") |
| import("//build/config/dcheck_always_on.gni") |
| import("//build/config/features.gni") |
| |
| # Subprojects need to override arguments in {mac,ios}_sdk_overrides.gni in their |
| # .gn config, but those arguments are only used on macOS. Including |
| # mac_sdk_overrides.gni insures that this doesn't trigger an unused argument |
| # warning. |
| import("//build/config/ios/ios_sdk_overrides.gni") |
| import("//build/config/mac/mac_sdk_overrides.gni") |
| |
| import("//build/config/pch.gni") |
| import("//build/config/sanitizers/sanitizers.gni") |
| import("//build/config/ui.gni") |
| import("//build/toolchain/goma.gni") |
| |
| declare_args() { |
| # When set (the default) enables C++ iterator debugging in debug builds. |
| # Iterator debugging is always off in release builds (technically, this flag |
| # affects the "debug" config, which is always available but applied by |
| # default only in debug builds). |
| # |
| # Iterator debugging is generally useful for catching bugs. But it can |
| # introduce extra locking to check the state of an iterator against the state |
| # of the current object. For iterator- and thread-heavy code, this can |
| # significantly slow execution - two orders of magnitude slowdown has been |
| # seen (crbug.com/903553) and iterator debugging also slows builds by making |
| # generation of snapshot_blob.bin take ~40-60 s longer. Therefore this |
| # defaults to off. |
| enable_iterator_debugging = false |
| } |
| |
| # ============================================== |
| # PLEASE DO NOT ADD MORE THINGS TO THIS LIST |
| # ============================================== |
| # |
| # Legacy feature defines applied to all targets. |
| # |
| # These are applied to every single compile in the build and most of them are |
| # only relevant to a few files. This bloats command lines and causes |
| # unnecessary recompiles when flags are flipped. |
| # |
| # To pass defines to source code from the build, use the buildflag system which |
| # will write headers containing the defines you need. This isolates the define |
| # and means its definition can participate in the build graph, only recompiling |
| # things when it actually changes. |
| # |
| # See //build/buildflag_header.gni for instructions on generating headers. |
| # |
| # This will also allow you to scope your build flag to a BUILD.gn file (or a |
| # .gni file if you need it from more than one place) rather than making global |
| # flags. See //build/config/BUILDCONFIG.gn for advice on where to define |
| # build flags. |
| config("feature_flags") { |
| defines = [] |
| if (dcheck_always_on) { |
| defines += [ "DCHECK_ALWAYS_ON=1" ] |
| if (dcheck_is_configurable) { |
| defines += [ "DCHECK_IS_CONFIGURABLE" ] |
| } |
| } |
| if (use_udev) { |
| # TODO(brettw) should probably be "=1". |
| defines += [ "USE_UDEV" ] |
| } |
| if (use_aura) { |
| defines += [ "USE_AURA=1" ] |
| } |
| if (use_glib) { |
| defines += [ "USE_GLIB=1" ] |
| } |
| if (use_nss_certs) { |
| defines += [ "USE_NSS_CERTS=1" ] |
| } |
| if (use_ozone && !is_android) { |
| # Note that some Chrome OS builds unconditionally set |use_ozone| to true, |
| # but they also build some targets with the Android toolchain. This ensures |
| # that Android targets still build with USE_OZONE=0 in such cases. |
| # |
| # TODO(crbug.com/837032): Maybe this can be cleaned up if we can avoid |
| # setting use_ozone globally. |
| defines += [ "USE_OZONE=1" ] |
| } |
| if (use_x11) { |
| defines += [ "USE_X11=1" ] |
| } |
| if (use_allocator != "tcmalloc") { |
| defines += [ "NO_TCMALLOC" ] |
| } |
| if (is_asan || is_hwasan || is_lsan || is_tsan || is_msan) { |
| defines += [ |
| "MEMORY_TOOL_REPLACES_ALLOCATOR", |
| "MEMORY_SANITIZER_INITIAL_SIZE", |
| ] |
| } |
| if (is_asan) { |
| defines += [ "ADDRESS_SANITIZER" ] |
| } |
| if (is_lsan) { |
| defines += [ "LEAK_SANITIZER" ] |
| } |
| if (is_tsan) { |
| defines += [ |
| "THREAD_SANITIZER", |
| "DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL=1", |
| "WTF_USE_DYNAMIC_ANNOTATIONS_NOIMPL=1", |
| ] |
| } |
| if (is_msan) { |
| defines += [ "MEMORY_SANITIZER" ] |
| } |
| if (is_ubsan || is_ubsan_null || is_ubsan_vptr || is_ubsan_security) { |
| defines += [ "UNDEFINED_SANITIZER" ] |
| } |
| if (safe_browsing_mode == 1) { |
| defines += [ "FULL_SAFE_BROWSING" ] |
| defines += [ "SAFE_BROWSING_CSD" ] |
| defines += [ "SAFE_BROWSING_DB_LOCAL" ] |
| } else if (safe_browsing_mode == 2) { |
| defines += [ "SAFE_BROWSING_DB_REMOTE" ] |
| } else if (safe_browsing_mode == 3) { |
| defines += [ "SAFE_BROWSING_DB_LOCAL" ] |
| } |
| if (is_official_build) { |
| defines += [ "OFFICIAL_BUILD" ] |
| } |
| if (is_chrome_branded) { |
| defines += [ "GOOGLE_CHROME_BUILD" ] |
| } else { |
| defines += [ "CHROMIUM_BUILD" ] |
| } |
| |
| # ============================================== |
| # PLEASE DO NOT ADD MORE THINGS TO THIS LIST |
| # ============================================== |
| # |
| # See the comment at the top. |
| } |
| |
| # Debug/release ---------------------------------------------------------------- |
| |
| config("debug") { |
| defines = [ |
| "_DEBUG", |
| "DYNAMIC_ANNOTATIONS_ENABLED=1", |
| "WTF_USE_DYNAMIC_ANNOTATIONS=1", |
| ] |
| |
| if (is_nacl) { |
| defines += [ "DYNAMIC_ANNOTATIONS_PREFIX=NACL_" ] |
| } |
| |
| if (is_win) { |
| if (!enable_iterator_debugging) { |
| # Iterator debugging is enabled by default by the compiler on debug |
| # builds, and we have to tell it to turn it off. |
| defines += [ "_HAS_ITERATOR_DEBUGGING=0" ] |
| } |
| } else if (is_linux && current_cpu == "x64" && enable_iterator_debugging) { |
| # Enable libstdc++ debugging facilities to help catch problems early, see |
| # http://crbug.com/65151 . |
| # TODO(phajdan.jr): Should we enable this for all of POSIX? |
| defines += [ "_GLIBCXX_DEBUG=1" ] |
| } |
| } |
| |
| config("release") { |
| defines = [ "NDEBUG" ] |
| |
| # Sanitizers. |
| if (is_tsan) { |
| defines += [ |
| "DYNAMIC_ANNOTATIONS_ENABLED=1", |
| "WTF_USE_DYNAMIC_ANNOTATIONS=1", |
| ] |
| } else { |
| defines += [ "NVALGRIND" ] |
| if (!is_nacl) { |
| # NaCl always enables dynamic annotations. Currently this value is set to |
| # 1 for all .nexes. |
| defines += [ "DYNAMIC_ANNOTATIONS_ENABLED=0" ] |
| } |
| } |
| |
| if (is_ios) { |
| # Disable NSAssert and GTMDevAssert (from Google Toolbox for Mac). This |
| # follows XCode's default behavior for Release builds. |
| defines += [ "NS_BLOCK_ASSERTIONS=1" ] |
| } |
| } |
| |
| # Default libraries ------------------------------------------------------------ |
| |
| # This config defines the default libraries applied to all targets. |
| config("default_libs") { |
| if (is_win) { |
| # TODO(brettw) this list of defaults should probably be smaller, and |
| # instead the targets that use the less common ones (e.g. wininet or |
| # winspool) should include those explicitly. |
| libs = [ |
| "advapi32.lib", |
| "comdlg32.lib", |
| "dbghelp.lib", |
| "dnsapi.lib", |
| "gdi32.lib", |
| "msimg32.lib", |
| "odbc32.lib", |
| "odbccp32.lib", |
| "oleaut32.lib", |
| "shell32.lib", |
| "shlwapi.lib", |
| "user32.lib", |
| "usp10.lib", |
| "uuid.lib", |
| "version.lib", |
| "wininet.lib", |
| "winmm.lib", |
| "winspool.lib", |
| "ws2_32.lib", |
| |
| # Please don't add more stuff here. We should actually be making this |
| # list smaller, since all common things should be covered. If you need |
| # some extra libraries, please just add a libs = [ "foo.lib" ] to your |
| # target that needs it. |
| ] |
| if (current_os == "winuwp") { |
| # These libraries are needed for Windows UWP (i.e. store apps). |
| libs += [ |
| "dloadhelper.lib", |
| "WindowsApp.lib", |
| ] |
| } else { |
| # These libraries are not compatible with Windows UWP (i.e. store apps.) |
| libs += [ |
| "delayimp.lib", |
| "kernel32.lib", |
| "ole32.lib", |
| ] |
| } |
| } else if (is_android) { |
| libs = [ |
| "dl", |
| "m", |
| ] |
| } else if (is_mac) { |
| # Targets should choose to explicitly link frameworks they require. Since |
| # linking can have run-time side effects, nothing should be listed here. |
| libs = [] |
| } else if (is_ios) { |
| # The libraries listed here will be specified for both the target and the |
| # host. Only the common ones should be listed here. |
| libs = [ |
| "CoreFoundation.framework", |
| "CoreGraphics.framework", |
| "CoreText.framework", |
| "Foundation.framework", |
| ] |
| } else if (is_linux) { |
| libs = [ |
| "dl", |
| "pthread", |
| "rt", |
| ] |
| } |
| } |
| |
| group("common_deps") { |
| visibility = [ |
| ":executable_deps", |
| ":loadable_module_deps", |
| ":shared_library_deps", |
| ] |
| |
| # WARNING: This group is a dependency of **every executable and shared |
| # library**. Please be careful adding new dependencies here. |
| public_deps = [] |
| |
| if (using_sanitizer) { |
| public_deps += [ "//build/config/sanitizers:deps" ] |
| } |
| |
| if (use_custom_libcxx) { |
| public_deps += [ "//buildtools/third_party/libc++" ] |
| } |
| |
| if (use_afl) { |
| public_deps += [ "//third_party/afl" ] |
| } |
| |
| if (is_android && use_order_profiling) { |
| public_deps += [ "//base/android/orderfile:orderfile_instrumentation" ] |
| } |
| |
| if (is_win && generate_order_files && !is_nacl) { |
| public_deps += [ "//tools/cygprofile_win" ] |
| } |
| |
| if (is_fuchsia) { |
| public_deps += [ "//third_party/fuchsia-sdk:runtime_library" ] |
| } |
| } |
| |
| # Only the executable template in BUILDCONFIG.gn should reference this. |
| group("executable_deps") { |
| public_deps = [ |
| ":common_deps", |
| ] |
| if (export_libcxxabi_from_executables) { |
| public_deps += [ "//buildtools/third_party/libc++abi" ] |
| } |
| } |
| |
| # Only the loadable_module template in BUILDCONFIG.gn should reference this. |
| group("loadable_module_deps") { |
| public_deps = [ |
| ":common_deps", |
| ] |
| } |
| |
| # Only the shared_library template in BUILDCONFIG.gn should reference this. |
| group("shared_library_deps") { |
| public_deps = [ |
| ":common_deps", |
| ] |
| } |
| |
| # Executable configs ----------------------------------------------------------- |
| |
| # Windows linker setup for EXEs and DLLs. |
| if (is_win) { |
| _windows_linker_configs = [ |
| "//build/config/win:sdk_link", |
| "//build/config/win:common_linker_setup", |
| ] |
| } |
| |
| # This config defines the configs applied to all executables. |
| config("executable_config") { |
| configs = [] |
| |
| if (is_win) { |
| configs += _windows_linker_configs |
| |
| # Currently only turn on linker CFI for executables. |
| configs += [ "//build/config/win:cfi_linker" ] |
| } else if (is_mac) { |
| configs += [ "//build/config/mac:mac_dynamic_flags" ] |
| } else if (is_ios) { |
| configs += [ |
| "//build/config/ios:ios_dynamic_flags", |
| "//build/config/ios:ios_executable_flags", |
| ] |
| } else if (is_linux || is_android || current_os == "aix") { |
| configs += [ "//build/config/gcc:executable_config" ] |
| if (is_chromecast) { |
| configs += [ "//build/config/chromecast:executable_config" ] |
| } else if (is_fuchsia) { |
| configs += [ "//build/config/fuchsia:executable_config" ] |
| } |
| } |
| |
| # If we're using the prebuilt instrumented libraries with the sanitizers, we |
| # need to add ldflags to every binary to make sure they are picked up. |
| if (prebuilt_instrumented_libraries_available) { |
| configs += [ "//third_party/instrumented_libraries:prebuilt_ldflags" ] |
| } |
| if (use_locally_built_instrumented_libraries) { |
| configs += [ "//third_party/instrumented_libraries:locally_built_ldflags" ] |
| } |
| configs += [ "//build/config/sanitizers:link_executable" ] |
| } |
| |
| # Shared library configs ------------------------------------------------------- |
| |
| # This config defines the configs applied to all shared libraries. |
| config("shared_library_config") { |
| configs = [] |
| |
| if (is_win) { |
| configs += _windows_linker_configs |
| } else if (is_mac) { |
| configs += [ "//build/config/mac:mac_dynamic_flags" ] |
| } else if (is_ios) { |
| configs += [ "//build/config/ios:ios_dynamic_flags" ] |
| } else if (is_chromecast) { |
| configs += [ "//build/config/chromecast:shared_library_config" ] |
| } else if (is_linux || current_os == "aix") { |
| configs += [ "//build/config/gcc:shared_library_config" ] |
| } |
| |
| # If we're using the prebuilt instrumented libraries with the sanitizers, we |
| # need to add ldflags to every binary to make sure they are picked up. |
| if (prebuilt_instrumented_libraries_available) { |
| configs += [ "//third_party/instrumented_libraries:prebuilt_ldflags" ] |
| } |
| if (use_locally_built_instrumented_libraries) { |
| configs += [ "//third_party/instrumented_libraries:locally_built_ldflags" ] |
| } |
| configs += [ "//build/config/sanitizers:link_shared_library" ] |
| } |
| |
| # Add this config to your target to enable precompiled headers. |
| # |
| # Precompiled headers are done on a per-target basis. If you have just a couple |
| # of files, the time it takes to precompile (~2 seconds) can actually be longer |
| # than the time saved. On a Z620, a 100 file target compiles about 2 seconds |
| # faster with precompiled headers, with greater savings for larger targets. |
| # |
| # Recommend precompiled headers for targets with more than 50 .cc files. |
| config("precompiled_headers") { |
| if (enable_precompiled_headers) { |
| if (is_win) { |
| # This is a string rather than a file GN knows about. It has to match |
| # exactly what's in the /FI flag below, and what might appear in the |
| # source code in quotes for an #include directive. |
| precompiled_header = "build/precompile.h" |
| |
| # This is a file that GN will compile with the above header. It will be |
| # implicitly added to the sources (potentially multiple times, with one |
| # variant for each language used in the target). |
| precompiled_source = "//build/precompile.cc" |
| |
| # Force include the header. |
| cflags = [ "/FI$precompiled_header" ] |
| } else if (is_mac) { |
| precompiled_source = "//build/precompile.h" |
| } |
| } |
| } |