587 lines
21 KiB
Text
587 lines
21 KiB
Text
# 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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import("//chromium/build/config/clang/clang.gni")
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import("//chromium/build/config/compiler/compiler.gni")
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import("//chromium/build/config/rust.gni")
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import("//chromium/build/config/sanitizers/sanitizers.gni")
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import("//chromium/build/config/win/visual_studio_version.gni")
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import("//chromium/build/toolchain/cc_wrapper.gni")
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import("//chromium/build/toolchain/goma.gni")
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import("//chromium/build/toolchain/rbe.gni")
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import("//chromium/build/toolchain/toolchain.gni")
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# Should only be running on Windows.
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assert(is_win)
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# Setup the Visual Studio state.
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#
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# Its arguments are the VS path and the compiler wrapper tool. It will write
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# "environment.x86" and "environment.x64" to the build directory and return a
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# list to us.
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# This tool will is used as a wrapper for various commands below.
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tool_wrapper_path = rebase_path("tool_wrapper.py", root_build_dir)
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if (use_rbe) {
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goma_prefix = ""
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rbe_prefix = "${rbe_bin_dir}/rewrapper -cfg=${rbe_cc_cfg_file} -exec_root=${rbe_exec_root} "
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clang_prefix = rbe_prefix
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} else if (use_goma) {
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if (host_os == "win") {
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goma_prefix = "$goma_dir/gomacc.exe "
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} else {
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goma_prefix = "$goma_dir/gomacc "
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}
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clang_prefix = goma_prefix
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} else {
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goma_prefix = ""
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if (cc_wrapper != "") {
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clang_prefix = cc_wrapper + " "
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} else {
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clang_prefix = ""
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}
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}
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# Copy the VS runtime DLL for the default toolchain to the root build directory
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# so things will run.
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if (current_toolchain == default_toolchain) {
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if (is_debug) {
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configuration_name = "Debug"
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} else {
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configuration_name = "Release"
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}
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exec_script("../../vs_toolchain.py",
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[
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"copy_dlls",
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rebase_path(root_build_dir),
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configuration_name,
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target_cpu,
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])
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}
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if (host_os == "win") {
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clang_cl = "clang-cl.exe"
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} else {
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clang_cl = "clang-cl"
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}
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# Parameters:
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# environment: File name of environment file.
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#
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# You would also define a toolchain_args variable with at least these set:
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# target_cpu: target_cpu to pass as a build arg
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# current_os: current_os to pass as a build arg
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template("msvc_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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toolchain_args = {
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if (defined(invoker.toolchain_args)) {
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forward_variables_from(invoker.toolchain_args, "*")
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}
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# This value needs to be passed through unchanged.
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host_toolchain = host_toolchain
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}
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# Make these apply to all tools below.
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lib_switch = ""
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lib_dir_switch = "/LIBPATH:"
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# Object files go in this directory.
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object_subdir = "{{target_out_dir}}/{{label_name}}"
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env = invoker.environment
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cl = invoker.cl
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if (use_lld) {
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if (host_os == "win") {
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lld_link = "lld-link.exe"
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} else {
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lld_link = "lld-link"
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}
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prefix = rebase_path("$clang_base_path/bin", root_build_dir)
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# lld-link includes a replacement for lib.exe that can produce thin
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# archives and understands bitcode (for lto builds).
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link = "$prefix/$lld_link"
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if (host_os == "win") {
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# Flip the slashes so that copy/paste of the commands works.
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link = string_replace(link, "/", "\\")
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}
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lib = "$link /lib"
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if (host_os != "win") {
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# See comment adding --rsp-quoting to $cl above for more information.
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link = "$link --rsp-quoting=posix"
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}
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} else {
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lib = "lib.exe"
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link = "link.exe"
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}
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# If possible, pass system includes as flags to the compiler. When that's
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# not possible, load a full environment file (containing %INCLUDE% and
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# %PATH%) -- e.g. 32-bit MSVS builds require %PATH% to be set and just
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# passing in a list of include directories isn't enough.
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if (defined(invoker.sys_include_flags)) {
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env_wrapper = ""
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sys_include_flags =
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"${invoker.sys_include_flags} " # Note trailing space.
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} else {
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# clang-cl doesn't need this env hoop, so omit it there.
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assert((defined(toolchain_args.is_clang) && !toolchain_args.is_clang) ||
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!is_clang)
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env_wrapper = "ninja -t msvc -e $env -- " # Note trailing space.
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sys_include_flags = ""
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}
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# ninja does not have -t msvc other than windows, and lld doesn't depend on
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# mt.exe in PATH on non-Windows, so it's not needed there anyways.
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if (host_os != "win") {
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linker_wrapper = ""
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sys_lib_flags = "${invoker.sys_lib_flags} " # Note trailing space.
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} else if (defined(invoker.sys_lib_flags)) {
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# Invoke ninja as wrapper instead of tool wrapper, because python
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# invocation requires higher cpu usage compared to ninja invocation, and
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# the python wrapper is only needed to work around link.exe problems.
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# TODO(thakis): Remove wrapper once lld-link can merge manifests without
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# relying on mt.exe being in %PATH% on Windows, https://crbug.com/872740
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linker_wrapper = "ninja -t msvc -e $env -- " # Note trailing space.
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sys_lib_flags = "${invoker.sys_lib_flags} " # Note trailing space.
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} else {
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# Note trailing space:
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linker_wrapper =
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"$python_path $tool_wrapper_path link-wrapper $env False "
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sys_lib_flags = ""
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}
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if (defined(toolchain_args.use_clang_coverage)) {
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toolchain_use_clang_coverage = toolchain_args.use_clang_coverage
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} else {
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toolchain_use_clang_coverage = use_clang_coverage
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}
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if (toolchain_use_clang_coverage) {
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assert(toolchain_args.is_clang,
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"use_clang_coverage should only be used with Clang")
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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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coverage_wrapper =
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rebase_path("//chromium/build/toolchain/clang_code_coverage_wrapper.py",
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root_build_dir)
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coverage_wrapper = coverage_wrapper + " --target-os=" + target_os
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if (toolchain_coverage_instrumentation_input_file != "") {
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coverage_wrapper =
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coverage_wrapper + " --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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}
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coverage_wrapper = "$python_path " + coverage_wrapper + " "
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} else {
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coverage_wrapper = ""
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}
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# Disabled with cc_wrapper because of https://github.com/mozilla/sccache/issues/1013
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if (toolchain_args.is_clang && cc_wrapper == "") {
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# This flag omits system includes from /showIncludes output, to reduce the
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# amount of data to parse and store in .ninja_deps. We do this on non-Windows too,
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# and already make sure rebuilds after win sdk / libc++ / clang header updates happen via
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# changing commandline flags.
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show_includes = "/showIncludes:user"
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} else {
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show_includes = "/showIncludes"
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}
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tool("cc") {
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precompiled_header_type = "msvc"
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pdbname = "{{target_out_dir}}/{{label_name}}_c.pdb"
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# Label names may have spaces in them so the pdbname must be quoted. The
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# source and output don't need to be quoted because GN knows they're a
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# full file name and will quote automatically when necessary.
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depsformat = "msvc"
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description = "CC {{output}}"
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outputs = [ "$object_subdir/{{source_name_part}}.obj" ]
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# Note that the code coverage wrapper scripts assumes that {{source}}
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# comes immediately after /c.
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command = "$coverage_wrapper$env_wrapper$cl /c {{source}} /nologo $show_includes $sys_include_flags{{defines}} {{include_dirs}} {{cflags}} {{cflags_c}} /Fo{{output}} /Fd\"$pdbname\""
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}
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tool("cxx") {
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precompiled_header_type = "msvc"
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# The PDB name needs to be different between C and C++ compiled files.
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pdbname = "{{target_out_dir}}/{{label_name}}_cc.pdb"
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# See comment in CC tool about quoting.
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depsformat = "msvc"
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description = "CXX {{output}}"
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outputs = [ "$object_subdir/{{source_name_part}}.obj" ]
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# Note that the code coverage wrapper scripts assumes that {{source}}
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# comes immediately after /c.
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command = "$coverage_wrapper$env_wrapper$cl /c {{source}} /Fo{{output}} /nologo $show_includes $sys_include_flags{{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}} /Fd\"$pdbname\""
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}
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tool("rc") {
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command = "$python_path $tool_wrapper_path rc-wrapper $env rc.exe /nologo $sys_include_flags{{defines}} {{include_dirs}} /fo{{output}} {{source}}"
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depsformat = "msvc"
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outputs = [ "$object_subdir/{{source_name_part}}.res" ]
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description = "RC {{output}}"
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}
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tool("asm") {
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is_msvc_assembler = true
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if (toolchain_args.target_cpu == "arm64") {
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if (is_clang) {
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prefix = rebase_path("$clang_base_path/bin", root_build_dir)
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ml = "${clang_prefix}${prefix}/${clang_cl} --target=arm64-windows"
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if (host_os == "win") {
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# Flip the slashes so that copy/paste of the command works.
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ml = string_replace(ml, "/", "\\")
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}
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ml += " -c -o{{output}}"
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is_msvc_assembler = false
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} else {
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# Only affects Arm builds with is_clang = false, implemented for building
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# V8 for Windows on Arm systems with the MSVC toolchain.
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ml = "armasm64.exe"
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}
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} else {
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# x86/x64 builds always use the MSVC assembler.
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if (toolchain_args.target_cpu == "x64") {
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ml = "ml64.exe"
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} else {
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ml = "ml.exe"
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}
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}
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if (is_msvc_assembler) {
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ml += " /nologo /Fo{{output}}"
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# Suppress final-stage linking on x64/x86 builds. (Armasm64 does not
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# require /c because it doesn't support linking.)
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if (toolchain_args.target_cpu != "arm64") {
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ml += " /c"
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}
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if (use_lld) {
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# Wrap ml(64).exe with a script that makes its output deterministic.
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# It's lld only because the script zaps obj Timestamp which
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# link.exe /incremental looks at.
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# TODO(https://crbug.com/762167): If we end up writing an llvm-ml64,
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# make sure it has deterministic output (maybe with /Brepro or
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# something) and remove this wrapper.
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ml_py = rebase_path("ml.py", root_build_dir)
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ml = "$python_path $ml_py $ml"
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}
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}
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if (toolchain_args.target_cpu != "arm64" || is_clang) {
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command = "$python_path $tool_wrapper_path asm-wrapper $env $ml {{defines}} {{include_dirs}} {{asmflags}} {{source}}"
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} else {
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# armasm64.exe does not support definitions passed via the command line.
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# (Fortunately, they're not needed for compiling the V8 snapshot, which
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# is the only time this assembler is required.)
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command = "$python_path $tool_wrapper_path asm-wrapper $env $ml {{include_dirs}} {{asmflags}} {{source}}"
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}
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description = "ASM {{output}}"
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outputs = [ "$object_subdir/{{source_name_part}}.obj" ]
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}
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if (toolchain_has_rust) {
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tool("rust_staticlib") {
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rust_outfile = "{{target_out_dir}}/{{crate_name}}.lib"
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depfile = "{{crate_name}}.d"
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command = "${rust_prefix}/rustc $rustc_common_args --emit=dep-info={{target_out_dir}}/$depfile,link -o $rust_outfile"
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description = "RUST $rust_outfile"
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outputs = [ rust_outfile ]
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}
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tool("rust_rlib") {
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rust_outfile = "{{target_out_dir}}/lib{{crate_name}}.rlib"
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depfile = "{{crate_name}}.d"
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command = "${rust_prefix}/rustc $rustc_common_args --emit=dep-info={{target_out_dir}}/$depfile,link -o $rust_outfile"
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description = "RUST $rust_outfile"
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outputs = [ rust_outfile ]
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}
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if (rustc_can_link) {
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tool("rust_bin") {
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rust_outfile = "{{root_out_dir}}/{{crate_name}}.exe"
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depfile = "{{crate_name}}.d"
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command = "${rust_prefix}/rustc $rustc_common_args --emit=dep-info={{target_out_dir}}/$depfile,link -o $rust_outfile"
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description = "RUST $rust_outfile"
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outputs = [ rust_outfile ]
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}
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tool("rust_cdylib") {
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rust_outfile = "{{target_out_dir}}/lib{{crate_name}}.dll"
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depfile = "{{crate_name}}.d"
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command = "${rust_prefix}/rustc $rustc_common_args --emit=dep-info={{target_out_dir}}/$depfile,link -o $rust_outfile"
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description = "RUST $rust_outfile"
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outputs = [ rust_outfile ]
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}
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tool("rust_macro") {
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rust_outfile = "{{target_out_dir}}/lib{{crate_name}}.dll"
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depfile = "{{crate_name}}.d"
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command = "${rust_prefix}/rustc $rustc_common_args --emit=dep-info={{target_out_dir}}/$depfile,link -o $rust_outfile"
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description = "RUST $rust_outfile"
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outputs = [ rust_outfile ]
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}
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}
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}
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tool("alink") {
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rspfile = "{{output}}.rsp"
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command = "$linker_wrapper$lib /OUT:{{output}} /nologo ${sys_lib_flags}{{arflags}} @$rspfile"
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description = "LIB {{output}}"
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outputs = [
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# Ignore {{output_extension}} and always use .lib, there's no reason to
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# allow targets to override this extension on Windows.
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"{{output_dir}}/{{target_output_name}}.lib",
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]
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default_output_extension = ".lib"
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default_output_dir = "{{target_out_dir}}"
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# The use of inputs_newline is to work around a fixed per-line buffer
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# size in the linker.
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rspfile_content = "{{inputs_newline}}"
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}
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tool("solink") {
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# E.g. "foo.dll":
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dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
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libname = "${dllname}.lib" # e.g. foo.dll.lib
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pdbname = "${dllname}.pdb"
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rspfile = "${dllname}.rsp"
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pool = "//chromium/build/toolchain:link_pool($default_toolchain)"
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command = "$linker_wrapper$link /OUT:$dllname /nologo ${sys_lib_flags}/IMPLIB:$libname /DLL /PDB:$pdbname @$rspfile"
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default_output_extension = ".dll"
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default_output_dir = "{{root_out_dir}}"
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description = "LINK(DLL) {{output}}"
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outputs = [
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dllname,
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libname,
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pdbname,
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]
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link_output = libname
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depend_output = libname
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runtime_outputs = [
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dllname,
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pdbname,
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]
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# Since the above commands only updates the .lib 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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# The use of inputs_newline is to work around a fixed per-line buffer
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# size in the linker.
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rspfile_content =
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"{{libs}} {{solibs}} {{inputs_newline}} {{ldflags}} {{rlibs}}"
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}
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tool("solink_module") {
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# E.g. "foo.dll":
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dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
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pdbname = "${dllname}.pdb"
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rspfile = "${dllname}.rsp"
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pool = "//chromium/build/toolchain:link_pool($default_toolchain)"
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command = "$linker_wrapper$link /OUT:$dllname /nologo ${sys_lib_flags}/DLL /PDB:$pdbname @$rspfile"
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default_output_extension = ".dll"
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default_output_dir = "{{root_out_dir}}"
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description = "LINK_MODULE(DLL) {{output}}"
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outputs = [
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dllname,
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pdbname,
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]
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runtime_outputs = outputs
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# The use of inputs_newline is to work around a fixed per-line buffer
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# size in the linker.
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rspfile_content =
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"{{libs}} {{solibs}} {{inputs_newline}} {{ldflags}} {{rlibs}}"
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}
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tool("link") {
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exename = "{{output_dir}}/{{target_output_name}}{{output_extension}}"
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pdbname = "$exename.pdb"
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rspfile = "$exename.rsp"
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pool = "//chromium/build/toolchain:link_pool($default_toolchain)"
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command = "$linker_wrapper$link /OUT:$exename /nologo ${sys_lib_flags} /PDB:$pdbname @$rspfile"
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default_output_extension = ".exe"
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default_output_dir = "{{root_out_dir}}"
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description = "LINK {{output}}"
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outputs = [
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exename,
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pdbname,
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]
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runtime_outputs = outputs
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# The use of inputs_newline is to work around a fixed per-line buffer
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# size in the linker.
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rspfile_content =
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"{{inputs_newline}} {{libs}} {{solibs}} {{ldflags}} {{rlibs}}"
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}
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# These two are really entirely generic, but have to be repeated in
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# each toolchain because GN doesn't allow a template to be used here.
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# See //build/toolchain/toolchain.gni for details.
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tool("stamp") {
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command = stamp_command
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description = stamp_description
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pool = "//chromium/build/toolchain:action_pool($default_toolchain)"
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}
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tool("copy") {
|
|
command = copy_command
|
|
description = copy_description
|
|
pool = "//chromium/build/toolchain:action_pool($default_toolchain)"
|
|
}
|
|
|
|
tool("action") {
|
|
pool = "//chromium/build/toolchain:action_pool($default_toolchain)"
|
|
}
|
|
}
|
|
}
|
|
|
|
template("win_toolchains") {
|
|
assert(defined(invoker.toolchain_arch))
|
|
toolchain_arch = invoker.toolchain_arch
|
|
|
|
win_toolchain_data = exec_script("setup_toolchain.py",
|
|
[
|
|
visual_studio_path,
|
|
windows_sdk_path,
|
|
visual_studio_runtime_dirs,
|
|
"win",
|
|
toolchain_arch,
|
|
"environment." + toolchain_arch,
|
|
],
|
|
"scope")
|
|
|
|
# The toolchain using MSVC only makes sense when not doing cross builds.
|
|
# Chromium exclusively uses the win_clang_ toolchain below, but V8 and
|
|
# WebRTC still use this MSVC toolchain in some cases.
|
|
if (host_os == "win") {
|
|
msvc_toolchain(target_name) {
|
|
environment = "environment." + toolchain_arch
|
|
cl = "${goma_prefix}\"${win_toolchain_data.vc_bin_dir}/cl.exe\""
|
|
|
|
toolchain_args = {
|
|
if (defined(invoker.toolchain_args)) {
|
|
forward_variables_from(invoker.toolchain_args, "*")
|
|
}
|
|
is_clang = false
|
|
use_clang_coverage = false
|
|
current_os = "win"
|
|
target_cpu = "arm64"
|
|
}
|
|
}
|
|
}
|
|
|
|
msvc_toolchain("win_clang_" + target_name) {
|
|
environment = "environment." + toolchain_arch
|
|
prefix = rebase_path("$clang_base_path/bin", root_build_dir)
|
|
cl = "${clang_prefix}$prefix/${clang_cl}"
|
|
_clang_lib_dir =
|
|
rebase_path("$clang_base_path/lib/clang/$clang_version/lib/windows",
|
|
root_build_dir)
|
|
if (host_os == "win") {
|
|
# Flip the slashes so that copy/paste of the command works.
|
|
cl = string_replace(cl, "/", "\\")
|
|
|
|
# And to match the other -libpath flags.
|
|
_clang_lib_dir = string_replace(_clang_lib_dir, "/", "\\")
|
|
}
|
|
|
|
sys_include_flags = "${win_toolchain_data.include_flags_imsvc}"
|
|
sys_lib_flags =
|
|
"-libpath:$_clang_lib_dir ${win_toolchain_data.libpath_flags}"
|
|
|
|
toolchain_args = {
|
|
if (defined(invoker.toolchain_args)) {
|
|
forward_variables_from(invoker.toolchain_args, "*")
|
|
}
|
|
is_clang = true
|
|
current_os = "win"
|
|
target_cpu = "arm64"
|
|
}
|
|
}
|
|
}
|
|
|
|
if (target_cpu == "x86" || target_cpu == "x64") {
|
|
win_toolchains("x86") {
|
|
toolchain_arch = "x86"
|
|
}
|
|
win_toolchains("x64") {
|
|
toolchain_arch = "x64"
|
|
}
|
|
}
|
|
|
|
if (target_cpu == "arm64") {
|
|
win_toolchains("arm64") {
|
|
toolchain_arch = "arm64"
|
|
}
|
|
win_toolchains(host_cpu) {
|
|
toolchain_arch = host_cpu
|
|
}
|
|
}
|
|
|
|
# The nacl_win64 toolchain is nearly identical to the plain x64 toolchain.
|
|
# It's used solely for building nacl64.exe (//components/nacl/broker:nacl64).
|
|
# The only reason it's a separate toolchain is so that it can force
|
|
# is_component_build to false in the toolchain_args() block, because
|
|
# building nacl64.exe in component style does not work.
|
|
win_toolchains("nacl_win64") {
|
|
toolchain_arch = "x64"
|
|
toolchain_args = {
|
|
is_component_build = false
|
|
}
|
|
}
|
|
|
|
# WinUWP toolchains. Only define these when targeting them.
|
|
|
|
if (target_os == "winuwp") {
|
|
assert(target_cpu == "x64" || target_cpu == "x86" || target_cpu == "arm" ||
|
|
target_cpu == "arm64")
|
|
store_cpu_toolchain_data = exec_script("setup_toolchain.py",
|
|
[
|
|
visual_studio_path,
|
|
windows_sdk_path,
|
|
visual_studio_runtime_dirs,
|
|
target_os,
|
|
target_cpu,
|
|
"environment.store_" + target_cpu,
|
|
],
|
|
"scope")
|
|
|
|
msvc_toolchain("uwp_" + target_cpu) {
|
|
environment = "environment.store_" + target_cpu
|
|
cl = "${goma_prefix}\"${store_cpu_toolchain_data.vc_bin_dir}/cl.exe\""
|
|
toolchain_args = {
|
|
current_os = "winuwp"
|
|
target_cpu = target_cpu
|
|
is_clang = false
|
|
}
|
|
}
|
|
}
|