425 lines
14 KiB
Text
425 lines
14 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("//build/config/sanitizers/sanitizers.gni")
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import("//build/config/win/visual_studio_version.gni")
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import("//build/toolchain/goma.gni")
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import("//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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gyp_win_tool_path =
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rebase_path("//tools/gyp/pylib/gyp/win_tool.py", root_build_dir)
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if (use_goma) {
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goma_prefix = "$goma_dir/gomacc.exe "
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} else {
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goma_prefix = ""
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}
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# This value will be inherited in the toolchain below.
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concurrent_links = exec_script("../get_concurrent_links.py", [], "value")
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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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# Parameters:
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# toolchain_cpu: current_cpu to pass as a build arg
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# toolchain_os: current_os to pass as a build arg
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# environment: File name of environment file.
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template("msvc_toolchain") {
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if (defined(invoker.concurrent_links)) {
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concurrent_links = invoker.concurrent_links
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}
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env = invoker.environment
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if (invoker.is_clang && host_os != "win") {
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# This toolchain definition uses response files for compilations. GN uses
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# the quoting rules of the host OS, while clang-cl always defaults to
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# cmd.exe quoting rules for parsing response files. Tell clang-cl to use
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# POSIX quoting rules, so it can understand what GN generates.
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cl = "${invoker.cl} --rsp-quoting=posix"
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} else {
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cl = invoker.cl
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}
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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("//third_party/llvm-build/Release+Asserts/bin",
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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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lib = "$prefix/$lld_link /lib /llvmlibthin"
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link = "$prefix/$lld_link"
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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 passing
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# 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 = "${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(!invoker.is_clang)
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env_wrapper = "ninja -t msvc -e $env -- " # Note trailing space.
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sys_include_flags = ""
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}
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toolchain(target_name) {
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# Make these apply to all tools below.
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lib_switch = ""
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lib_dir_switch = "/LIBPATH:"
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# Object files go in this directory.
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object_subdir = "{{target_out_dir}}/{{label_name}}"
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tool("cc") {
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rspfile = "{{output}}.rsp"
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precompiled_header_type = "msvc"
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pdbname = "{{target_out_dir}}/{{label_name}}_c.pdb"
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# Label names may have spaces in them so the pdbname must be quoted. The
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# source and output don't need to be quoted because GN knows they're a
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# full file name and will quote automatically when necessary.
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command = "$env_wrapper$cl /nologo /showIncludes /FC @$rspfile /c {{source}} /Fo{{output}} /Fd\"$pdbname\""
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depsformat = "msvc"
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description = "CC {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.obj",
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]
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rspfile_content = "$sys_include_flags{{defines}} {{include_dirs}} {{cflags}} {{cflags_c}}"
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}
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tool("cxx") {
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rspfile = "{{output}}.rsp"
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precompiled_header_type = "msvc"
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# The PDB name needs to be different between C and C++ compiled files.
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pdbname = "{{target_out_dir}}/{{label_name}}_cc.pdb"
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# See comment in CC tool about quoting.
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command = "$env_wrapper$cl /nologo /showIncludes /FC @$rspfile /c {{source}} /Fo{{output}} /Fd\"$pdbname\""
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depsformat = "msvc"
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description = "CXX {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.obj",
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]
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rspfile_content = "$sys_include_flags{{defines}} {{include_dirs}} {{cflags}} {{cflags_cc}}"
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}
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tool("rc") {
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command = "$python_path gyp-win-tool rc-wrapper $env rc.exe {{defines}} {{include_dirs}} /fo{{output}} {{source}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.res",
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]
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description = "RC {{output}}"
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}
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tool("asm") {
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if (invoker.toolchain_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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command = "$python_path gyp-win-tool asm-wrapper $env $ml {{defines}} {{include_dirs}} {{asmflags}} /c /Fo{{output}} {{source}}"
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description = "ASM {{output}}"
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outputs = [
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"$object_subdir/{{source_name_part}}.obj",
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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 = "$python_path gyp-win-tool link-wrapper $env False $lib /nologo {{arflags}} /OUT:{{output}} @$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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dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}" # e.g. foo.dll
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libname = "${dllname}.lib" # e.g. foo.dll.lib
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rspfile = "${dllname}.rsp"
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command = "$python_path gyp-win-tool link-wrapper $env False $link /nologo /IMPLIB:$libname /DLL /OUT:$dllname /PDB:${dllname}.pdb @$rspfile"
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default_output_extension = ".dll"
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default_output_dir = "{{root_out_dir}}"
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description = "LINK(DLL) {{output}}"
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outputs = [
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dllname,
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libname,
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]
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link_output = libname
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depend_output = libname
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runtime_link_output = dllname
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# Since the above commands only updates the .lib file when it changes, ask
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# Ninja to check if the timestamp actually changed to know if downstream
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# dependencies should be recompiled.
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restat = true
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# The use of inputs_newline is to work around a fixed per-line buffer
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# size in the linker.
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rspfile_content = "{{libs}} {{solibs}} {{inputs_newline}} {{ldflags}}"
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}
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tool("solink_module") {
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dllname = "{{output_dir}}/{{target_output_name}}{{output_extension}}" # e.g. foo.dll
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rspfile = "${dllname}.rsp"
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command = "$python_path gyp-win-tool link-wrapper $env False $link /nologo /DLL /OUT:$dllname /PDB:${dllname}.pdb @$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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]
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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 = "{{libs}} {{solibs}} {{inputs_newline}} {{ldflags}}"
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}
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tool("link") {
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rspfile = "{{output}}.rsp"
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command = "$python_path gyp-win-tool link-wrapper $env False $link /nologo /OUT:{{output}} /PDB:{{output}}.pdb @$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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"{{output_dir}}/{{target_output_name}}{{output_extension}}",
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]
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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}} {{libs}} {{solibs}} {{ldflags}}"
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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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# 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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toolchain_args() {
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current_cpu = invoker.toolchain_cpu
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if (defined(invoker.toolchain_os)) {
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current_os = invoker.toolchain_os
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}
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# These share a name with global variables that are already defined, and
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# forward_variables_from won't clobber the existing value, so we need to
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# set it explicitly.
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if (defined(invoker.is_clang)) {
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is_clang = invoker.is_clang
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}
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if (defined(invoker.is_component_build)) {
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is_component_build = invoker.is_component_build
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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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}
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}
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if (is_clang) {
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sys_include_prefix = "-imsvc"
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} else {
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# MSVC doesn't have the concept of system headers.
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sys_include_prefix = "/I"
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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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# 32-bit toolchains. Only define these when the target architecture is 32-bit
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# since we don't do any 32-bit cross compiles when targeting 64-bit (the
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# build does generate some 64-bit stuff from 32-bit target builds).
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if (target_cpu == "x86") {
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x86_toolchain_data = exec_script("setup_toolchain.py",
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[
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visual_studio_path,
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gyp_win_tool_path,
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windows_sdk_path,
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visual_studio_runtime_dirs,
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"x86",
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"${sys_include_prefix}",
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],
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"scope")
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msvc_toolchain("x86") {
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environment = "environment.x86"
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toolchain_cpu = "x86"
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cl = "${goma_prefix}\"${x86_toolchain_data.vc_bin_dir}/cl.exe\""
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is_clang = false
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}
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msvc_toolchain("clang_x86") {
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environment = "environment.x86"
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toolchain_cpu = "x86"
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prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
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root_build_dir)
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cl = "${goma_prefix}$prefix/${clang_cl}"
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toolchain_os = "win"
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is_clang = true
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sys_include_flags = "${x86_toolchain_data.include_flags}"
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}
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}
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# 64-bit toolchains.
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x64_toolchain_data = exec_script("setup_toolchain.py",
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[
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visual_studio_path,
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gyp_win_tool_path,
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windows_sdk_path,
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visual_studio_runtime_dirs,
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"x64",
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"${sys_include_prefix}",
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],
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"scope")
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template("win_x64_toolchains") {
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# TODO(mcgrathr): These assignments are only required because of
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# crbug.com/395883. Drop them if that ever gets fixed in GN.
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concurrent_links = invoker.concurrent_links
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goma_prefix = invoker.goma_prefix
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x64_toolchain_data = invoker.x64_toolchain_data
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clang_cl = invoker.clang_cl
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msvc_toolchain(target_name) {
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environment = "environment.x64"
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toolchain_cpu = "x64"
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cl = "${goma_prefix}\"${x64_toolchain_data.vc_bin_dir}/cl.exe\""
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is_clang = false
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# This shares a name with a global and forward_variables_from won't clobber
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# the existing value, so we need to set it explicitly.
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if (defined(invoker.is_component_build)) {
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is_component_build = invoker.is_component_build
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}
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}
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msvc_toolchain("clang_" + target_name) {
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environment = "environment.x64"
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toolchain_cpu = "x64"
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prefix = rebase_path("//third_party/llvm-build/Release+Asserts/bin",
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root_build_dir)
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cl = "${goma_prefix}$prefix/${clang_cl}"
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toolchain_os = "win"
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is_clang = true
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sys_include_flags = "${x64_toolchain_data.include_flags}"
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# This shares a name with a global and forward_variables_from won't clobber
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# the existing value, so we need to set it explicitly.
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if (defined(invoker.is_component_build)) {
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is_component_build = invoker.is_component_build
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}
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}
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}
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win_x64_toolchains("x64") {
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# TODO(mcgrathr): These assignments are only required because of
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# crbug.com/395883. Drop them if that ever gets fixed in GN.
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concurrent_links = concurrent_links
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goma_prefix = goma_prefix
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x64_toolchain_data = x64_toolchain_data
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}
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# The nacl_win64 toolchain is nearly identical to the plain x64 toolchain.
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# It's used solely for building nacl64.exe (//components/nacl/broker:nacl64).
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# The only reason it's a separate toolchain is so that it can force
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# is_component_build to false in the toolchain_args() block, because
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# building nacl64.exe in component style does not work.
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win_x64_toolchains("nacl_win64") {
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is_component_build = false
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# TODO(mcgrathr): These assignments are only required because of
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# crbug.com/395883. Drop them if that ever gets fixed in GN.
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concurrent_links = concurrent_links
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goma_prefix = goma_prefix
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x64_toolchain_data = x64_toolchain_data
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clang_cl = clang_cl
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}
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# WinRT toolchains. Only define these when targeting them.
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#
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# NOTE: This is currently broken because it references vc_bin_dir. brettw@
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# changed this around a bit, and I don't know what this should be set to
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# in terms of what setup_toolchain returns for a certain CPU architecture.
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if (target_os == "winrt_81" || target_os == "winrt_81_phone" ||
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target_os == "winrt_10") {
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msvc_toolchain("winrt_x86") {
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environment = "environment.winrt_x86"
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cl = "${goma_prefix}\"${vc_bin_dir}/cl.exe\""
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is_clang = false
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toolchain_cpu = "x86"
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toolchain_os = current_os
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}
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msvc_toolchain("winrt_x64") {
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environment = "environment.winrt_x64"
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cl = "${goma_prefix}\"${vc_bin_dir}/cl.exe\""
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is_clang = false
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toolchain_cpu = "x64"
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toolchain_os = current_os
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}
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}
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