600 строки
21 KiB
Plaintext
600 строки
21 KiB
Plaintext
# Copyright (c) 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# TODO(brettw) Use "gcc_toolchain.gni" like the Linux toolchains. This requires
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# some enhancements since the commands on Mac are slightly different than on
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# Linux.
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import("//build/config/clang/clang.gni")
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import("//build/config/coverage/coverage.gni")
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import("../goma.gni")
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if (is_ios) {
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import("//build/config/ios/ios_sdk.gni")
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}
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import("//build/config/mac/mac_sdk.gni")
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import("//build/config/mac/symbols.gni")
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assert(host_os == "mac")
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import("//build/toolchain/cc_wrapper.gni")
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import("//build/toolchain/concurrent_links.gni")
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import("//build/toolchain/goma.gni")
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import("//build/toolchain/toolchain.gni")
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declare_args() {
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# Reduce the number of tasks using the copy_bundle_data and compile_xcassets
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# tools as they can cause lots of I/O contention when invoking ninja with a
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# large number of parallel jobs (e.g. when using distributed build like goma).
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bundle_pool_depth = -1
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# This makes the linker set timestamps in Mach-O files to 0. This isn't
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# enabled by default because this breaks Xcode's lldb. This has been fixed in
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# https://reviews.llvm.org/rL368199 but that has not yet made it into a public
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# lldb release.
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mac_deterministic_build = false
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}
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if (current_toolchain == default_toolchain) {
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pool("bundle_pool") {
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if (bundle_pool_depth == -1) {
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depth = concurrent_links
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} else {
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depth = bundle_pool_depth
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}
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}
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}
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# When implementing tools using Python scripts, a TOOL_VERSION=N env
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# variable is placed in front of the command. The N should be incremented
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# whenever the script is changed, so that the build system rebuilds all
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# edges that utilize the script. Ideally this should be changed to use
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# proper input-dirty checking, but that could be expensive. Instead, use a
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# script to get the tool scripts' modification time to use as the version.
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# This won't cause a re-generation of GN files when the tool script changes
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# but it will cause edges to be marked as dirty if the ninja files are
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# regenerated. See https://crbug.com/619083 for details. A proper fix
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# would be to have inputs to tools (https://crbug.com/621119).
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tool_versions =
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exec_script("get_tool_mtime.py",
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rebase_path([
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"//build/config/ios/compile_xcassets.py",
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"//build/toolchain/mac/filter_libtool.py",
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"//build/toolchain/mac/linker_driver.py",
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],
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root_build_dir),
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"trim scope")
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# Shared toolchain definition. Invocations should set current_os to set the
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# build args in this definition.
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template("mac_toolchain") {
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toolchain(target_name) {
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# When invoking this toolchain not as the default one, these args will be
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# passed to the build. They are ignored when this is the default toolchain.
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assert(defined(invoker.toolchain_args),
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"Toolchains must declare toolchain_args")
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toolchain_args = {
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# Populate toolchain args from the invoker.
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forward_variables_from(invoker.toolchain_args, "*")
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# The host toolchain value computed by the default toolchain's setup
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# needs to be passed through unchanged to all secondary toolchains to
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# ensure that it's always the same, regardless of the values that may be
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# set on those toolchains.
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host_toolchain = host_toolchain
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}
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# Supports building with the version of clang shipped with Xcode when
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# targeting iOS by not respecting clang_base_path.
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if (toolchain_args.current_os == "ios" && use_xcode_clang) {
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prefix = ""
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} else {
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prefix = rebase_path("$clang_base_path/bin/", root_build_dir)
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}
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_cc = "${prefix}clang"
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_cxx = "${prefix}clang++"
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# When the invoker has explicitly overridden use_goma or cc_wrapper in the
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# toolchain args, use those values, otherwise default to the global one.
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# This works because the only reasonable override that toolchains might
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# supply for these values are to force-disable them.
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if (defined(toolchain_args.use_goma)) {
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toolchain_uses_goma = toolchain_args.use_goma
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} else {
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toolchain_uses_goma = use_goma
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}
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if (defined(toolchain_args.cc_wrapper)) {
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toolchain_cc_wrapper = toolchain_args.cc_wrapper
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} else {
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toolchain_cc_wrapper = cc_wrapper
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}
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# Compute the compiler prefix.
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if (toolchain_uses_goma) {
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assert(toolchain_cc_wrapper == "",
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"Goma and cc_wrapper can't be used together.")
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compiler_prefix = "$goma_dir/gomacc "
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} else if (toolchain_cc_wrapper != "") {
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compiler_prefix = toolchain_cc_wrapper + " "
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} else {
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compiler_prefix = ""
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}
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cc = compiler_prefix + _cc
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cxx = compiler_prefix + _cxx
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ld = _cxx
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# Set the explicit search path for clang++ so it uses the right linker
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# binary.
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ld += " -B " + mac_bin_path
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if (defined(toolchain_args.coverage_instrumentation_input_file)) {
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toolchain_coverage_instrumentation_input_file =
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toolchain_args.coverage_instrumentation_input_file
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} else {
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toolchain_coverage_instrumentation_input_file =
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coverage_instrumentation_input_file
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}
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_use_clang_coverage_wrapper =
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toolchain_coverage_instrumentation_input_file != ""
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if (_use_clang_coverage_wrapper) {
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_coverage_wrapper =
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rebase_path("//build/toolchain/clang_code_coverage_wrapper.py",
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root_build_dir) + " --files-to-instrument=" +
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rebase_path(toolchain_coverage_instrumentation_input_file,
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root_build_dir)
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cc = _coverage_wrapper + " ${cc}"
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cxx = _coverage_wrapper + " ${cxx}"
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}
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linker_driver =
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"TOOL_VERSION=${tool_versions.linker_driver} " +
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rebase_path("//build/toolchain/mac/linker_driver.py", root_build_dir)
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# Specify an explicit path for the strip binary.
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_strippath = mac_bin_path + "strip"
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linker_driver += " -Wcrl,strippath," + _strippath
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if (mac_deterministic_build) {
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linker_driver += " --deterministic"
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}
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# On iOS, the final applications are assembled using lipo (to support fat
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# builds). The correct flags are passed to the linker_driver.py script
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# directly during the lipo call.
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if (toolchain_args.current_os != "ios") {
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_enable_dsyms = enable_dsyms
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_save_unstripped_output = save_unstripped_output
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} else {
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_enable_dsyms = false
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_save_unstripped_output = false
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}
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# Make these apply to all tools below.
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lib_switch = "-l"
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lib_dir_switch = "-L"
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# Object files go in this directory. Use label_name instead of
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# target_output_name since labels will generally have no spaces and will be
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# unique in the directory.
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object_subdir = "{{target_out_dir}}/{{label_name}}"
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# If dSYMs are enabled, this flag will be added to the link tools.
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if (_enable_dsyms) {
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dsym_switch = " -Wcrl,dsym,{{root_out_dir}} "
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if (is_mac) {
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dsym_switch += "-Wcrl,dsymutilpath," +
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rebase_path("//tools/clang/dsymutil/bin/dsymutil",
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root_build_dir) + " "
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}
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dsym_output_dir =
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"{{root_out_dir}}/{{target_output_name}}{{output_extension}}.dSYM"
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dsym_output = [
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"$dsym_output_dir/Contents/Info.plist",
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"$dsym_output_dir/Contents/Resources/DWARF/" +
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"{{target_output_name}}{{output_extension}}",
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]
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} else {
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dsym_switch = ""
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}
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if (_save_unstripped_output) {
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_unstripped_output = "{{root_out_dir}}/{{target_output_name}}{{output_extension}}.unstripped"
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}
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tool("cc") {
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depfile = "{{output}}.d"
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precompiled_header_type = "gcc"
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command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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description = "CC {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.o",
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]
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}
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tool("cxx") {
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depfile = "{{output}}.d"
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precompiled_header_type = "gcc"
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command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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description = "CXX {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.o",
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]
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}
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tool("asm") {
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# For GCC we can just use the C compiler to compile assembly.
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depfile = "{{output}}.d"
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command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{asmflags}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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description = "ASM {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.o",
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]
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}
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tool("objc") {
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depfile = "{{output}}.d"
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precompiled_header_type = "gcc"
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command = "$cc -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_objc}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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description = "OBJC {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.o",
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]
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}
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tool("objcxx") {
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depfile = "{{output}}.d"
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precompiled_header_type = "gcc"
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command = "$cxx -MMD -MF $depfile {{defines}} {{include_dirs}} {{cflags}} {{cflags_objcc}} -c {{source}} -o {{output}}"
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depsformat = "gcc"
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description = "OBJCXX {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.o",
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]
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}
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tool("alink") {
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script =
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rebase_path("//build/toolchain/mac/filter_libtool.py", root_build_dir)
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# Note about -filelist: Apple's linker reads the file list file and
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# interprets each newline-separated chunk of text as a file name. It
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# doesn't do the things one would expect from the shell like unescaping
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# or handling quotes. In contrast, when Ninja finds a file name with
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# spaces, it single-quotes them in $inputs_newline as it would normally
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# do for command-line arguments. Thus any source names with spaces, or
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# label names with spaces (which GN bases the output paths on) will be
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# corrupted by this process. Don't use spaces for source files or labels.
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rspfile = "{{output}}.rsp"
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rspfile_content = "{{inputs_newline}}"
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# Specify explicit path for libtool.
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libtool = mac_bin_path + "libtool"
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command = "rm -f {{output}} && TOOL_VERSION=${tool_versions.filter_libtool} python $script $libtool -static {{arflags}} -o {{output}} -filelist $rspfile"
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description = "LIBTOOL-STATIC {{output}}"
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outputs = [
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"{{output_dir}}/{{target_output_name}}{{output_extension}}",
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]
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default_output_dir = "{{target_out_dir}}"
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default_output_extension = ".a"
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output_prefix = "lib"
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}
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tool("solink") {
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dylib = "{{output_dir}}/{{target_output_name}}{{output_extension}}" # eg "./libfoo.dylib"
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rspfile = dylib + ".rsp"
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pool = "//build/toolchain:link_pool($default_toolchain)"
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# These variables are not built into GN but are helpers that implement
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# (1) linking to produce a .dylib, (2) extracting the symbols from that
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# file to a temporary file, (3) if the temporary file has differences from
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# the existing .TOC file, overwrite it, otherwise, don't change it.
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#
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# As a special case, if the library reexports symbols from other dynamic
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# libraries, we always update the .TOC and skip the temporary file and
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# diffing steps, since that library always needs to be re-linked.
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tocname = dylib + ".TOC"
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temporary_tocname = dylib + ".tmp"
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# Use explicit paths to binaries. The binaries present on the default
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# search path in /usr/bin are thin wrappers around xcrun, which requires a
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# full CommandLineTools or Xcode install, and still may not choose the
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# appropriate binary if there are multiple installs.
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otool = mac_bin_path + "otool"
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nm = mac_bin_path + "nm"
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does_reexport_command = "[ ! -e \"$dylib\" -o ! -e \"$tocname\" ] || $otool -l \"$dylib\" | grep -q LC_REEXPORT_DYLIB"
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link_command = "$linker_driver $ld -shared "
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if (is_component_build) {
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link_command += " -Wl,-install_name,@rpath/\"{{target_output_name}}{{output_extension}}\" "
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}
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link_command += dsym_switch
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link_command += "{{ldflags}} -o \"$dylib\" -Wl,-filelist,\"$rspfile\" {{libs}} {{solibs}}"
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replace_command = "if ! cmp -s \"$temporary_tocname\" \"$tocname\"; then mv \"$temporary_tocname\" \"$tocname\""
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extract_toc_command = "{ $otool -l \"$dylib\" | grep LC_ID_DYLIB -A 5; $nm -gP \"$dylib\" | cut -f1-2 -d' ' | grep -v U\$\$; true; }"
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command = "if $does_reexport_command ; then $link_command && $extract_toc_command > \"$tocname\"; else $link_command && $extract_toc_command > \"$temporary_tocname\" && $replace_command ; fi; fi"
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rspfile_content = "{{inputs_newline}}"
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description = "SOLINK {{output}}"
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# Use this for {{output_extension}} expansions unless a target manually
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# overrides it (in which case {{output_extension}} will be what the target
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# specifies).
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default_output_dir = "{{root_out_dir}}"
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default_output_extension = ".dylib"
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output_prefix = "lib"
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# Since the above commands only updates the .TOC file when it changes, ask
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# Ninja to check if the timestamp actually changed to know if downstream
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# dependencies should be recompiled.
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restat = true
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# Tell GN about the output files. It will link to the dylib but use the
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# tocname for dependency management.
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outputs = [
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dylib,
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tocname,
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]
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link_output = dylib
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depend_output = tocname
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if (_enable_dsyms) {
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outputs += dsym_output
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}
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if (_save_unstripped_output) {
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outputs += [ _unstripped_output ]
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}
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}
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tool("solink_module") {
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sofile = "{{output_dir}}/{{target_output_name}}{{output_extension}}" # eg "./libfoo.so"
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rspfile = sofile + ".rsp"
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pool = "//build/toolchain:link_pool($default_toolchain)"
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link_command = "$linker_driver $ld -bundle {{ldflags}} -o \"$sofile\" -Wl,-filelist,\"$rspfile\""
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if (is_component_build) {
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link_command += " -Wl,-install_name,@rpath/{{target_output_name}}{{output_extension}}"
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}
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link_command += dsym_switch
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link_command += " {{solibs}} {{libs}}"
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command = link_command
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rspfile_content = "{{inputs_newline}}"
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description = "SOLINK_MODULE {{output}}"
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# Use this for {{output_extension}} expansions unless a target manually
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# overrides it (in which case {{output_extension}} will be what the target
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# specifies).
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default_output_dir = "{{root_out_dir}}"
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default_output_extension = ".so"
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outputs = [
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sofile,
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]
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if (_enable_dsyms) {
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outputs += dsym_output
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}
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if (_save_unstripped_output) {
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outputs += [ _unstripped_output ]
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}
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}
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tool("link") {
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outfile = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
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rspfile = "$outfile.rsp"
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pool = "//build/toolchain:link_pool($default_toolchain)"
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# Note about -filelist: Apple's linker reads the file list file and
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# interprets each newline-separated chunk of text as a file name. It
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# doesn't do the things one would expect from the shell like unescaping
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# or handling quotes. In contrast, when Ninja finds a file name with
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# spaces, it single-quotes them in $inputs_newline as it would normally
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# do for command-line arguments. Thus any source names with spaces, or
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# label names with spaces (which GN bases the output paths on) will be
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# corrupted by this process. Don't use spaces for source files or labels.
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command = "$linker_driver $ld $dsym_switch {{ldflags}} -o \"$outfile\" -Wl,-filelist,\"$rspfile\" {{solibs}} {{libs}}"
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description = "LINK $outfile"
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rspfile_content = "{{inputs_newline}}"
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outputs = [
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outfile,
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]
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if (_enable_dsyms) {
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outputs += dsym_output
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}
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if (_save_unstripped_output) {
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outputs += [ _unstripped_output ]
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}
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default_output_dir = "{{root_out_dir}}"
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}
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# These two are really entirely generic, but have to be repeated in
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# each toolchain because GN doesn't allow a template to be used here.
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# See //build/toolchain/toolchain.gni for details.
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tool("stamp") {
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command = stamp_command
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description = stamp_description
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}
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tool("copy") {
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command = copy_command
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description = copy_description
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}
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tool("copy_bundle_data") {
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# copy_command use hardlink if possible but this does not work with
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# directories. If source is a directory, instead use "pax" to create
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# the same tree structure using hardlinks to individual files (this
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# preserve symbolic links too) as recommended in the replies to the
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# question at http://serverfault.com/q/209888/43689 ("cp -al" isn't
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# available on macOS).
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#
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# According to the man page for pax, the commands to use to clone
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|
# olddir to newdir using pax are the following:
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#
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# $ mkdir newdir
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# $ cd olddir
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# $ pax -rwl . ../newdir
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#
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|
# The _copydir command does exactly that but use an absolute path
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|
# constructed using shell variable $OLDPWD (automatically set when
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# cd is used) as computing the relative path is a bit complex and
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|
# using pwd would requires a sub-shell to be created.
|
|
_copydir = "mkdir -p {{output}} && cd {{source}} && " +
|
|
"pax -rwl . \"\$OLDPWD\"/{{output}}"
|
|
command = "rm -rf {{output}} && if [[ -d {{source}} ]]; then " +
|
|
_copydir + "; else " + copy_command + "; fi"
|
|
|
|
description = "COPY_BUNDLE_DATA {{source}} {{output}}"
|
|
pool = ":bundle_pool($default_toolchain)"
|
|
}
|
|
|
|
# xcassets are only used on iOS, not macOS. We want to minimize the number
|
|
# of Xcode-based tools used by the macOS toolchain, so we intentionally
|
|
# disallow future uses of xcassets on macOS. https://crbug.com/965663.
|
|
if (toolchain_args.current_os == "ios") {
|
|
tool("compile_xcassets") {
|
|
_tool = rebase_path("//build/config/ios/compile_xcassets.py",
|
|
root_build_dir)
|
|
if (is_ios) {
|
|
_sdk_name = ios_sdk_name
|
|
_min_deployment_target = ios_deployment_target
|
|
_compress_pngs = ""
|
|
} else {
|
|
_sdk_name = mac_sdk_name
|
|
_min_deployment_target = mac_deployment_target
|
|
_compress_pngs = " -c "
|
|
}
|
|
command =
|
|
"rm -f \"{{output}}\" && " +
|
|
"TOOL_VERSION=${tool_versions.compile_xcassets} " +
|
|
"python $_tool$_compress_pngs -p \"$_sdk_name\" " +
|
|
"-t \"$_min_deployment_target\" -T \"{{bundle_product_type}}\" " +
|
|
"-P \"{{bundle_partial_info_plist}}\" -o {{output}} {{inputs}}"
|
|
|
|
description = "COMPILE_XCASSETS {{output}}"
|
|
pool = ":bundle_pool($default_toolchain)"
|
|
}
|
|
}
|
|
|
|
tool("action") {
|
|
pool = "//build/toolchain:action_pool($default_toolchain)"
|
|
}
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_arm") {
|
|
toolchain_args = {
|
|
current_cpu = "arm"
|
|
current_os = "mac"
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_x64") {
|
|
toolchain_args = {
|
|
current_cpu = "x64"
|
|
current_os = "mac"
|
|
|
|
if (target_os == "ios") {
|
|
# TODO(crbug.com/753445): the use_sanitizer_coverage arg is currently
|
|
# not supported by the Chromium mac_clang_x64 toolchain on iOS
|
|
# distribution.
|
|
use_sanitizer_coverage = false
|
|
}
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_x86") {
|
|
toolchain_args = {
|
|
current_cpu = "x86"
|
|
current_os = "mac"
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_x86_v8_arm") {
|
|
toolchain_args = {
|
|
current_cpu = "x86"
|
|
current_os = "mac"
|
|
|
|
if (defined(v8_current_cpu)) {
|
|
v8_current_cpu = "arm"
|
|
}
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_x86_v8_mipsel") {
|
|
toolchain_args = {
|
|
current_cpu = "x86"
|
|
current_os = "mac"
|
|
|
|
if (defined(v8_current_cpu)) {
|
|
v8_current_cpu = "mipsel"
|
|
}
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_x64_v8_arm64") {
|
|
toolchain_args = {
|
|
current_cpu = "x64"
|
|
current_os = "mac"
|
|
|
|
if (defined(v8_current_cpu)) {
|
|
v8_current_cpu = "arm64"
|
|
}
|
|
}
|
|
}
|
|
|
|
mac_toolchain("clang_x64_v8_mips64el") {
|
|
toolchain_args = {
|
|
current_cpu = "x64"
|
|
current_os = "mac"
|
|
|
|
if (defined(v8_current_cpu)) {
|
|
v8_current_cpu = "mips64el"
|
|
}
|
|
}
|
|
}
|
|
|
|
if (is_ios) {
|
|
mac_toolchain("ios_clang_arm") {
|
|
toolchain_args = {
|
|
current_cpu = "arm"
|
|
current_os = "ios"
|
|
}
|
|
}
|
|
|
|
mac_toolchain("ios_clang_arm64") {
|
|
toolchain_args = {
|
|
current_cpu = "arm64"
|
|
current_os = "ios"
|
|
}
|
|
}
|
|
|
|
mac_toolchain("ios_clang_x86") {
|
|
toolchain_args = {
|
|
current_cpu = "x86"
|
|
current_os = "ios"
|
|
}
|
|
}
|
|
|
|
mac_toolchain("ios_clang_x64") {
|
|
toolchain_args = {
|
|
current_cpu = "x64"
|
|
current_os = "ios"
|
|
}
|
|
}
|
|
}
|