skia2/gn/BUILDCONFIG.gn
Harry Terkelsen 50012bd88e Enable WASM cross-compilation by correctly using current_cpu
Change-Id: I5964d330f87949fd214873693204a153d22282a8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/529205
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2022-04-20 11:31:35 +00:00

242 lines
6.2 KiB
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# Copyright 2016 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
is_skia_standalone = true
# It's best to keep the names and defaults of is_foo flags consistent with Chrome.
declare_args() {
is_official_build = false
is_component_build = false
ndk = ""
# Android 5.0, Lollipop
ndk_api = 21
sanitize = ""
ar = "ar"
cc = "cc"
cxx = "c++"
win_sdk = "C:/Program Files (x86)/Windows Kits/10"
win_sdk_version = ""
win_vc = ""
win_toolchain_version = ""
clang_win = ""
clang_win_version = ""
ios_min_target = ""
ios_use_simulator =
target_os == "ios" && (target_cpu == "x86" || target_cpu == "x64")
}
declare_args() {
is_debug = !is_official_build
}
assert(!(is_debug && is_official_build))
if (target_cpu == "wasm") {
target_os = "wasm"
}
# Platform detection
if (target_os == "") {
target_os = host_os
if (ndk != "") {
target_os = "android"
}
}
if (current_os == "") {
current_os = target_os
}
is_android = current_os == "android"
is_fuchsia = current_os == "fuchsia"
is_ios = current_os == "ios" || current_os == "tvos"
is_tvos = current_os == "tvos"
is_linux = current_os == "linux"
is_mac = current_os == "mac"
is_wasm = current_os == "wasm"
is_win = current_os == "win"
# This is just to make the Dawn build files happy. Skia itself uses target_os = "linux"
# for ChromeOS, so this variable will not affect Skia proper.
is_chromeos = false
# This is to make the ANGLE build files happy. Skia always uses is_mac and/or is_ios.
is_apple = is_mac || is_ios
if (target_cpu == "") {
target_cpu = host_cpu
if (is_android || is_ios) {
target_cpu = "arm64"
}
}
if (target_cpu == "x86_64") {
target_cpu = "x64"
}
if (current_cpu == "") {
current_cpu = target_cpu
}
is_clang = is_android || is_ios || is_mac || is_fuchsia || is_wasm ||
(cc == "clang" && cxx == "clang++") || clang_win != ""
if (!is_clang && !is_win) {
is_clang = exec_script("//gn/is_clang.py",
[
cc,
cxx,
],
"value")
}
if (is_android) {
ndk_host = ""
ndk_target = ""
ndk_gdbserver = ""
if (host_os == "linux") {
ndk_host = "linux-x86_64"
} else if (host_os == "mac") {
ndk_host = "darwin-x86_64"
} else if (host_os == "win") {
ndk_host = "windows-x86_64"
}
if (target_cpu == "arm64") {
ndk_target = "aarch64-linux-android"
ndk_gdbserver = "prebuilt/android-arm64/gdbserver/gdbserver"
} else if (target_cpu == "arm") {
ndk_target = "armv7a-linux-androideabi"
ndk_gdbserver = "prebuilt/android-arm/gdbserver/gdbserver"
} else if (target_cpu == "x64") {
ndk_target = "x86_64-linux-android"
ndk_gdbserver = "prebuilt/android-x86_64/gdbserver/gdbserver"
} else if (target_cpu == "x86") {
ndk_target = "i686-linux-android"
ndk_gdbserver = "prebuilt/android-x86/gdbserver/gdbserver"
}
}
if (target_os == "win") {
# By default we look for 2017 (Enterprise, Pro, and Community), then 2015. If MSVC is installed in a
# non-default location, you can set win_vc to inform us where it is.
if (win_vc == "") {
win_vc = exec_script("//gn/find_msvc.py", [], "trim string")
}
assert(win_vc != "") # Could not find VC installation. Set win_vc to your VC
# directory.
}
if (target_os == "win") {
if (win_toolchain_version == "") {
win_toolchain_version = exec_script("//gn/highest_version_dir.py",
[
"$win_vc/Tools/MSVC",
"[0-9]{2}\.[0-9]{2}\.[0-9]{5}",
],
"trim string")
}
if (win_sdk_version == "") {
win_sdk_version = exec_script("//gn/highest_version_dir.py",
[
"$win_sdk/Include",
"[0-9]{2}\.[0-9]\.[0-9]{5}\.[0-9]",
],
"trim string")
}
if (clang_win != "" && clang_win_version == "") {
clang_win_version = exec_script("//gn/highest_version_dir.py",
[
"$clang_win/lib/clang",
"[0-9]+\.[0-9]+\.[0-9]+",
],
"trim string")
}
}
# A component is either a static or a shared library.
template("component") {
_component_mode = "static_library"
if (is_component_build) {
_component_mode = "shared_library"
}
target(_component_mode, target_name) {
forward_variables_from(invoker, "*")
}
}
# Default configs
default_configs = [
"//gn/skia:default",
"//gn/skia:no_exceptions",
"//gn/skia:no_rtti",
]
if (!is_debug) {
default_configs += [
"//gn/skia:optimize",
"//gn/skia:NDEBUG",
]
}
if (!is_official_build) {
default_configs += [ "//gn/skia:debug_symbols" ]
}
default_configs += [ "//gn/skia:extra_flags" ]
set_defaults("executable") {
configs = [ "//gn/skia:executable" ] + default_configs
}
set_defaults("source_set") {
configs = default_configs
}
set_defaults("static_library") {
configs = default_configs
}
set_defaults("shared_library") {
configs = default_configs
}
set_defaults("component") {
configs = default_configs
if (!is_component_build) {
complete_static_lib = true
}
}
skia_target_default_configs = []
if (!is_official_build) {
skia_target_default_configs += [ "//gn/skia:warnings" ]
}
skia_header_target_default_configs = []
if (!is_official_build) {
skia_header_target_default_configs +=
[ "//gn/skia:warnings_for_public_headers" ]
}
if (is_win) {
# Windows tool chain
set_default_toolchain("//gn/toolchain:msvc")
default_toolchain_name = "msvc"
host_toolchain = "msvc"
} else if (is_wasm) {
set_default_toolchain("//gn/toolchain:wasm")
default_toolchain_name = "wasm"
host_toolchain = "wasm"
} else {
# GCC-like toolchains, including Clang.
set_default_toolchain("//gn/toolchain:gcc_like")
default_toolchain_name = "gcc_like"
host_toolchain = "gcc_like_host"
}