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Alexander David Frick 2022-07-09 18:38:45 -05:00 committed by GitHub
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148
build/config/arm.gni
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# Copyright 2022 The Chromium Authors and Alex313031. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/v8_target_cpu.gni")
# These are primarily relevant in current_cpu == "arm" contexts, where
# ARM code is being compiled. But they can also be relevant in the
# other contexts when the code will change its behavior based on the
# cpu it wants to generate code for.
if (current_cpu == "arm" || v8_current_cpu == "arm") {
declare_args() {
# Version of the ARM processor when compiling on ARM. Ignored on non-ARM
# platforms.
arm_version = 8
# The ARM architecture. This will be a string like "armv6" or "armv7-a".
# An empty string means to use the default for the arm_version.
arm_arch = "armv8.5-a"
# The ARM floating point hardware. This will be a string like "neon" or
# "vfpv3". An empty string means to use the default for the arm_version.
arm_fpu = ""
# The ARM variant-specific tuning mode. This will be a string like "armv6"
# or "cortex-a15". An empty string means to use the default for the
# arm_version.
arm_tune = "armv8.5-a"
# Whether to use the neon FPU instruction set or not.
arm_use_neon = "true"
# Whether to enable optional NEON code paths.
arm_optionally_use_neon = true
# Thumb is a reduced instruction set available on some ARM processors that
# has increased code density.
arm_use_thumb = true
}
if (current_os == "android" || target_os == "android") {
arm_float_abi = "softfp"
} else {
declare_args() {
# The ARM floating point mode. This is either the string "hard", "soft",
# or "softfp". An empty string means to use the default one for the
# arm_version.
arm_float_abi = ""
}
}
assert(arm_float_abi == "" || arm_float_abi == "hard" ||
arm_float_abi == "soft" || arm_float_abi == "softfp")
if (arm_use_neon == "") {
if (current_os == "linux" && target_cpu != v8_target_cpu) {
# Don't use neon on V8 simulator builds as a default.
arm_use_neon = false
} else {
arm_use_neon = true
}
}
if (arm_version == 6) {
if (arm_arch == "") {
# v8 can still with version 6 but only with the armv6k extension.
arm_arch = "armv6k"
}
if (arm_tune != "") {
arm_tune = ""
}
if (arm_float_abi == "") {
arm_float_abi = "softfp"
}
if (arm_fpu == "") {
arm_fpu = "vfp"
}
arm_use_thumb = false
arm_use_neon = false
} else if (arm_version == 7) {
if (arm_arch == "") {
arm_arch = "armv7-a"
}
if (arm_tune == "") {
arm_tune = "generic-armv7-a"
}
if (arm_float_abi == "") {
if (current_os == "linux" && target_cpu != v8_target_cpu) {
# Default to the same as Android for V8 simulator builds.
arm_float_abi = "softfp"
} else {
arm_float_abi = "hard"
}
}
if (arm_fpu == "") {
if (arm_use_neon) {
arm_fpu = "neon"
} else {
arm_fpu = "vfpv3-d16"
}
}
} else if (arm_version == 8) {
if (arm_arch == "") {
arm_arch = "armv8-a"
}
if (arm_tune == "") {
arm_tune = "generic-armv8-a"
}
if (arm_float_abi == "") {
arm_float_abi = "hard"
}
if (arm_fpu == "") {
if (arm_use_neon) {
arm_fpu = "neon"
} else {
arm_fpu = "vfpv3-d16"
}
}
}
} else if (current_cpu == "arm64" || v8_current_cpu == "arm64") {
# arm64 supports only "hard".
arm_float_abi = "hard"
arm_use_neon = true
declare_args() {
# Enables the new Armv8 branch protection features. Valid strings are:
# - "pac": Enables Pointer Authentication Code (PAC, featured in Armv8.3)
# - "standard": Enables both PAC and Branch Target Identification (Armv8.5).
# - "none": No branch protection.
arm_control_flow_integrity = "standard"
# TODO(cavalcantii): enable the feature for the following OSes next.
if (is_mac || is_chromeos || is_fuchsia || is_win ||
target_cpu != "arm64") {
# target_cpu != "arm64" covers some cases (e.g. the ChromeOS x64 MSAN
# build) where the target platform is x64, but V8 is configured to use
# the arm64 simulator. Pointer authentication doesn't work properly
# in this mode (yet).
arm_control_flow_integrity = "none"
}
}
assert(arm_control_flow_integrity == "none" ||
arm_control_flow_integrity == "standard" ||
arm_control_flow_integrity == "pac",
"Invalid branch protection option")
}

2705
build/config/compiler/BUILD.gn
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157
build/config/mac/BUILD.gn
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# Copyright (c) 2022 The Chromium Authors and Alex313031. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/apple/symbols.gni")
import("//build/config/c++/c++.gni")
import("//build/config/mac/mac_sdk.gni")
import("//build/config/sysroot.gni")
import("//build/toolchain/goma.gni")
import("//build/toolchain/rbe.gni")
# This is included by reference in the //build/config/compiler config that
# is applied to all targets. It is here to separate out the logic.
config("compiler") {
# These flags are shared between the C compiler and linker.
common_mac_flags = []
# CPU architecture.
if (current_cpu == "x64") {
clang_arch = "x86_64"
} else if (current_cpu == "x86") {
clang_arch = "i386"
} else if (current_cpu == "arm64") {
clang_arch = current_cpu
} else {
assert(false, "unknown current_cpu $current_cpu")
}
if (host_os == "mac") {
common_mac_flags += [
"-arch",
clang_arch,
]
} else {
common_mac_flags += [ "--target=$clang_arch-apple-macos" ]
}
# This is here so that all files get recompiled after an Xcode update.
# (defines are passed via the command line, and build system rebuild things
# when their commandline changes). Nothing should ever read this define.
defines = [ "CR_XCODE_VERSION=$xcode_version" ]
asmflags = [ "-O3", ] + common_mac_flags
cflags = [ "-O3", ] + common_mac_flags
# Without this, the constructors and destructors of a C++ object inside
# an Objective C struct won't be called, which is very bad.
cflags_objcc = [ "-fobjc-call-cxx-cdtors" ]
ldflags = [ "-Wl,-O3", ] + common_mac_flags
if (target_cpu == "x64") {
cflags += [ "-maes", "-mavx", "-mavx2", "-ffp-contract=fast", "-mf16c", "-mfma", "-Wno-unused-command-line-argument", ]
}
if (current_cpu == "x64") {
cflags += [ "-maes", "-mavx", "-mavx2", "-ffp-contract=fast", "-mf16c", "-mfma", "-Wno-unused-command-line-argument", ]
}
if (save_unstripped_output) {
ldflags += [ "-Wcrl,unstripped," + rebase_path(root_out_dir) ]
}
if (export_libcxxabi_from_executables) {
ldflags += [ "-Wl,-undefined,dynamic_lookup" ]
}
}
# This is included by reference in the //build/config/compiler:runtime_library
# config that is applied to all targets. It is here to separate out the logic
# that is Mac-only. Please see that target for advice on what should go in
# :runtime_library vs. :compiler.
config("runtime_library") {
common_flags = [
"-isysroot",
rebase_path(sysroot, root_build_dir),
"-mmacos-version-min=$mac_deployment_target",
]
asmflags = common_flags
cflags = common_flags
ldflags = common_flags
# Prevent Mac OS X AssertMacros.h (included by system header) from defining
# macros that collide with common names, like 'check', 'require', and
# 'verify'.
# http://opensource.apple.com/source/CarbonHeaders/CarbonHeaders-18.1/AssertMacros.h
defines = [ "__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=0" ]
}
# On Mac, this is used for everything except static libraries.
config("mac_dynamic_flags") {
ldflags = [ "-Wl,-ObjC", "-Wl,-O3", ] # Always load Objective-C categories and classes.
if (is_component_build) {
ldflags += [
# Path for loading shared libraries for unbundled binaries.
"-Wl,-rpath,@loader_path/.",
# Path for loading shared libraries for bundled binaries. Get back from
# Binary.app/Contents/MacOS.
"-Wl,-rpath,@loader_path/../../..",
]
# Path for loading shared libraries for unbundled binaries for
# the host toolchain (see https://crbug.com/1315433). Only used
# for when building for iOS.
if (target_os == "ios" && current_toolchain == host_toolchain) {
ldflags += [
"-Wl,-rpath,@loader_path/" +
rebase_path(get_label_info(":mac_dynamic_flags", "root_out_dir"),
root_build_dir),
]
}
}
}
# The ldflags referenced below are handled by
# //build/toolchain/apple/linker_driver.py.
# Remove this config if a target wishes to change the arguments passed to the
# strip command during linking. This config by default strips all symbols
# from a binary, but some targets may wish to specify an exports file to
# preserve specific symbols.
config("strip_all") {
if (enable_stripping) {
ldflags = [ "-Wcrl,strip,-x,-S", "-Wl,-O3", ]
}
}
# When building with Goma, all inputs must be relative to the build directory.
# If using the system Xcode, which typically resides outside the build root, a
# symlink to the SDK is created in the build directory, and the path to that
# link is stored in $mac_sdk_path. If an action references a file in the SDK as
# an input, GN will complain that no target generates the file because it is
# below the $root_build_dir. The below action lists as outputs the files in the
# SDK that are referenced as inputs to actions, so that GN thinks a target has
# generated them. The list is centralized here, as multiple targets need to
# reference the same files, and an output can only be generated once.
#
# The symbolic link for $mac_sdk_path is set up by
# //build/config/apple/sdk_info.py in //build/config/mac/mac_sdk.gni.
if (use_system_xcode && (use_goma || use_remoteexec) && target_os == "mac" &&
current_toolchain == default_toolchain) {
action("sdk_inputs") {
script = "//build/noop.py"
outputs = [
"$mac_sdk_path/usr/include/mach/exc.defs",
"$mac_sdk_path/usr/include/mach/mach_exc.defs",
"$mac_sdk_path/usr/include/mach/notify.defs",
]
}
} else {
group("sdk_inputs") {
if (current_toolchain != default_toolchain) {
public_deps = [ ":sdk_inputs($default_toolchain)" ]
}
}
}

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build/config/win/BUILD.gn
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# Copyright (c) 2022 The Chromium Authors and Alex313031. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/config/c++/c++.gni")
import("//build/config/chrome_build.gni")
import("//build/config/clang/clang.gni")
import("//build/config/compiler/compiler.gni")
import("//build/config/sanitizers/sanitizers.gni")
import("//build/config/win/control_flow_guard.gni")
import("//build/config/win/visual_studio_version.gni")
import("//build/timestamp.gni")
import("//build/toolchain/goma.gni")
import("//build/toolchain/toolchain.gni")
assert(is_win)
declare_args() {
# Turn this on to have the linker output extra timing information.
win_linker_timing = false
# possible values for target_winuwp_version:
# "10" - Windows UWP 10
# "8.1" - Windows RT 8.1
# "8.0" - Windows RT 8.0
target_winuwp_version = "10"
# possible values:
# "app" - Windows Store Applications
# "phone" - Windows Phone Applications
# "system" - Windows Drivers and Tools
# "server" - Windows Server Applications
# "desktop" - Windows Desktop Applications
target_winuwp_family = "app"
# Set this to use clang-style diagnostics format instead of MSVC-style, which
# is useful in e.g. Emacs compilation mode.
# E.g.:
# Without this, clang emits a diagnostic message like this:
# foo/bar.cc(12,34): error: something went wrong
# and with this switch, clang emits it like this:
# foo/bar.cc:12:34: error: something went wrong
use_clang_diagnostics_format = false
# Indicates whether to use /pdbpagesize:8192 to allow PDBs larger than 4 GiB.
# This requires updated debugging and profiling tools which are not widely
# distributed yet which is why it is currently opt-in.
use_large_pdbs = false
}
# This is included by reference in the //build/config/compiler config that
# is applied to all targets. It is here to separate out the logic that is
# Windows-only.
config("compiler") {
if (current_cpu == "x86") {
asmflags = [
# When /safeseh is specified, the linker will only produce an image if it
# can also produce a table of the image's safe exception handlers. This
# table specifies for the operating system which exception handlers are
# valid for the image. Note that /SAFESEH isn't accepted on the command
# line, only /safeseh. This is only accepted by ml.exe, not ml64.exe.
"/safeseh",
]
}
cflags = [
"/Gy", # Enable function-level linking.
"/FS", # Preserve previous PDB behavior.
"/bigobj", # Some of our files are bigger than the regular limits.
"/utf-8", # Assume UTF-8 by default to avoid code page dependencies.
]
if (is_clang) {
cflags += [
"/Zc:twoPhase",
# Consistently use backslash as the path separator when expanding the
# __FILE__ macro when targeting Windows regardless of the build
# environment.
"-ffile-reproducible",
]
}
# Force C/C++ mode for the given GN detected file type. This is necessary
# for precompiled headers where the same source file is compiled in both
# modes.
cflags_c = [ "/TC" ]
cflags_cc = [ "/TP" ]
cflags += [
# Work around crbug.com/526851, bug in VS 2015 RTM compiler.
"/Zc:sizedDealloc-",
]
if (is_clang) {
# Required to make the 19041 SDK compatible with clang-cl.
# See https://crbug.com/1089996 issue #2 for details.
cflags += [ "/D__WRL_ENABLE_FUNCTION_STATICS__" ]
# Tell clang which version of MSVC to emulate.
cflags += [ "-fmsc-version=1916" ]
if (is_component_build) {
cflags += [
# Do not export inline member functions. This makes component builds
# faster. This is similar to -fvisibility-inlines-hidden.
"/Zc:dllexportInlines-",
]
}
if (current_cpu == "x86") {
if (host_cpu == "x86" || host_cpu == "x64") {
cflags += [ "-m32" ]
} else {
cflags += [ "--target=i386-windows", "/O3", "/clang:-O3", "-Xclang", "-O3", "-Wno-unused-command-line-argument", ]
}
} else if (current_cpu == "x64") {
if (host_cpu == "x86" || host_cpu == "x64") {
cflags += [ "-m64" ]
} else {
cflags += [ "--target=x86_64-windows" ]
}
} else if (current_cpu == "arm64") {
cflags += [ "--target=arm64-windows", "/O3", "/clang:-O3", "-Xclang", "-O3", "-Wno-unused-command-line-argument", ]
} else {
assert(false, "unknown current_cpu " + current_cpu)
}
# Chrome currently requires SSE3. Clang supports targeting any Intel
# microarchitecture. MSVC only supports a subset of architectures, and the
# next step after SSE2 will be AVX.
# "/fp:fast", enables FMA.
if (current_cpu == "x86" || current_cpu == "x64") {
cflags += [
"/O3",
"-mavx",
"-maes",
"/clang:-O3",
"/clang:-mavx",
"/clang:-maes",
"-Xclang", "-O3",
"-Wno-unused-command-line-argument",
]
}
if (exec_script("//build/win/use_ansi_codes.py", [], "trim string") ==
"True") {
cflags += [
# cmd.exe doesn't understand ANSI escape codes by default,
# so only enable them if something emulating them is around.
"-fansi-escape-codes",
]
}
if (use_clang_diagnostics_format) {
cflags += [ "/clang:-fdiagnostics-format=clang" ]
}
}
# Disabled with cc_wrapper because of https://github.com/mozilla/sccache/issues/264
if (use_lld && !use_thin_lto && (is_clang || !use_goma) && cc_wrapper == "") {
# /Brepro lets the compiler not write the mtime field in the .obj output.
# link.exe /incremental relies on this field to work correctly, but lld
# never looks at this timestamp, so it's safe to pass this flag with
# lld and get more deterministic compiler output in return.
# In LTO builds, the compiler doesn't write .obj files containing mtimes,
# so /Brepro is ignored there.
cflags += [ "/Brepro" ]
}
ldflags = []
if (use_lld) {
# lld defaults to writing the current time in the pe/coff header.
# For build reproducibility, pass an explicit timestamp. See
# build/compute_build_timestamp.py for how the timestamp is chosen.
# (link.exe also writes the current time, but it doesn't have a flag to
# override that behavior.)
ldflags += [ "/TIMESTAMP:" + build_timestamp ]
# Don't look for libpaths in %LIB%, similar to /X in cflags above.
ldflags += [ "/lldignoreenv" ]
ldflags += [ "/opt:lldlto=3", ]
}
if (use_large_pdbs) {
# This allows PDBs up to 8 GiB in size. This requires lld-link.exe or
# link.exe from VS 2022 or later.
ldflags += [ "/pdbpagesize:8192" ]
}
if (!is_debug && !is_component_build) {
# Enable standard linker optimizations like GC (/OPT:REF) and ICF in static
# release builds.
# Release builds always want these optimizations, so enable them explicitly.
ldflags += [
"/OPT:REF",
"/OPT:ICF",
"/INCREMENTAL:NO",
"/FIXED:NO",
"/OPT:lldlto=3",
"-mllvm:-march=sandybridge",
]
if (use_lld) {
# String tail merging leads to smaller binaries, but they don't compress
# as well, leading to increased mini_installer size (crbug.com/838449).
ldflags += [ "/OPT:NOLLDTAILMERGE" ]
}
# TODO(siggi): Is this of any use anymore?
# /PROFILE ensures that the PDB file contains FIXUP information (growing the
# PDB file by about 5%) but does not otherwise alter the output binary. It
# is enabled opportunistically for builds where it is not prohibited (not
# supported when incrementally linking, or using /debug:fastlink).
ldflags += [ "/PROFILE" ]
}
# arflags apply only to static_libraries. The normal linker configs are only
# set for executable and shared library targets so arflags must be set
# elsewhere. Since this is relatively contained, we just apply them in this
# more general config and they will only have an effect on static libraries.
arflags = [
# "No public symbols found; archive member will be inaccessible." This
# means that one or more object files in the library can never be
# pulled in to targets that link to this library. It's just a warning that
# the source file is a no-op.
"/ignore:4221",
]
}
# This is included by reference in the //build/config/compiler:runtime_library
# config that is applied to all targets. It is here to separate out the logic
# that is Windows-only. Please see that target for advice on what should go in
# :runtime_library vs. :compiler.
config("runtime_library") {
cflags = []
cflags_cc = []
# Defines that set up the CRT.
defines = [
"__STD_C",
"_CRT_RAND_S",
"_CRT_SECURE_NO_DEPRECATE",
"_SCL_SECURE_NO_DEPRECATE",
]
# Defines that set up the Windows SDK.
defines += [
"_ATL_NO_OPENGL",
"_WINDOWS",
"CERT_CHAIN_PARA_HAS_EXTRA_FIELDS",
"PSAPI_VERSION=2",
"WIN32",
"_SECURE_ATL",
]
if (current_os == "winuwp") {
# When targeting Windows Runtime, certain compiler/linker flags are
# necessary.
defines += [
"WINUWP",
"__WRL_NO_DEFAULT_LIB__",
]
if (target_winuwp_family == "app") {
defines += [ "WINAPI_FAMILY=WINAPI_FAMILY_PC_APP" ]
} else if (target_winuwp_family == "phone") {
defines += [ "WINAPI_FAMILY=WINAPI_FAMILY_PHONE_APP" ]
} else if (target_winuwp_family == "system") {
defines += [ "WINAPI_FAMILY=WINAPI_FAMILY_SYSTEM" ]
} else if (target_winuwp_family == "server") {
defines += [ "WINAPI_FAMILY=WINAPI_FAMILY_SERVER" ]
} else {
defines += [ "WINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP" ]
}
cflags_cc += [ "/EHsc" ]
# This warning is given because the linker cannot tell the difference
# between consuming WinRT APIs versus authoring WinRT within static
# libraries as such this warning is always given by the linker. Since
# consuming WinRT APIs within a library is legitimate but authoring
# WinRT APis is not allowed, this warning is disabled to ignore the
# legitimate consumption of WinRT APIs within static library builds.
arflags = [ "/IGNORE:4264" ]
if (target_winuwp_version == "10") {
defines += [ "WIN10=_WIN32_WINNT_WIN10" ]
} else if (target_winuwp_version == "8.1") {
defines += [ "WIN8_1=_WIN32_WINNT_WINBLUE" ]
} else if (target_winuwp_version == "8.0") {
defines += [ "WIN8=_WIN32_WINNT_WIN8" ]
}
} else {
# When not targeting Windows Runtime, make sure the WINAPI family is set
# to desktop.
defines += [ "WINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP" ]
}
}
# Chromium supports running on Windows 7, but if these constants are set to
# Windows 7, then newer APIs aren't made available by the Windows SDK.
# So we set this to Windows 10 and then are careful to check at runtime
# to only call newer APIs when they're available.
# Some third-party libraries assume that these defines set what version of
# Windows is available at runtime. Targets using these libraries need to
# manually override this config for their compiles.
config("winver") {
defines = [
"NTDDI_VERSION=NTDDI_WIN10_FE",
# We can't say `=_WIN32_WINNT_WIN10` here because some files do
# `#if WINVER < 0x0600` without including windows.h before,
# and then _WIN32_WINNT_WIN10 isn't yet known to be 0x0A00.
"_WIN32_WINNT=0x0A00",
"WINVER=0x0A00",
]
}
# Linker flags for Windows SDK setup, this is applied only to EXEs and DLLs.
config("sdk_link") {
if (current_cpu == "x86") {
ldflags = [
"/SAFESEH", # Not compatible with x64 so use only for x86.
"/largeaddressaware",
]
}
}
# This default linker setup is provided separately from the SDK setup so
# targets who want different library configurations can remove this and specify
# their own.
config("common_linker_setup") {
ldflags = [
"/FIXED:NO",
"/ignore:4199",
"/ignore:4221",
"/NXCOMPAT",
"/DYNAMICBASE",
]
if (win_linker_timing) {
ldflags += [
"/time",
"/verbose:incr",
]
}
}
config("default_cfg_compiler") {
# Emit table of address-taken functions for Control-Flow Guard (CFG).
# This is needed to allow functions to be called by code that is built
# with CFG enabled, such as system libraries.
# The CFG guards are only emitted if |win_enable_cfg_guards| is enabled.
if (is_clang) {
if (win_enable_cfg_guards) {
cflags = [ "/guard:cf" ]
} else {
cflags = [ "/guard:cf,nochecks" ]
}
}
}
# To disable CFG guards for a target, remove the "default_cfg_compiler"
# config, and add "disable_guards_cfg_compiler" config.
config("disable_guards_cfg_compiler") {
# Emit table of address-taken functions for Control-Flow Guard (CFG).
# This is needed to allow functions to be called by code that is built
# with CFG enabled, such as system libraries.
if (is_clang) {
cflags = [ "/guard:cf,nochecks" ]
}
}
config("cfi_linker") {
# Control Flow Guard (CFG)
# https://msdn.microsoft.com/en-us/library/windows/desktop/mt637065.aspx
# /DYNAMICBASE (ASLR) is turned off in debug builds, therefore CFG cannot be
# turned on either.
# ASan and CFG leads to slow process startup. Chromium's test runner uses
# lots of child processes, so this means things are really slow. Disable CFG
# for now. https://crbug.com/846966
if (!is_debug && !is_asan) {
# Turn on CFG bitmap generation and CFG load config.
ldflags = [ "/guard:cf" ]
}
}
# This is a superset of all the delayloads needed for chrome.exe, chrome.dll,
# chrome_child.dll, and chrome_elf.dll. The linker will automatically ignore
# anything which is not linked to the binary at all.
# Most of the dlls are simply not required at startup (or at all, depending
# on how the browser is used). The following dlls are interconnected and need to
# be delayloaded together to ensure user32 does not load too early or at all,
# depending on the process type: user32, gdi32, comctl32, comdlg32, cryptui,
# d3d9, dwmapi, imm32, msi, ole32, oleacc, rstrtmgr, shell32, shlwapi, and
# uxtheme.
# There are some exceptions to this list which need to be declared separately.
# Some dlls cannot be delayloaded by chrome_child.dll due to the sandbox
# restrictions that prevent them from being loaded properly. Those dlls are
# specified in the separate config below.
# This config should also be used for any test binary whose goal is to run
# tests with the full browser.
config("delayloads") {
ldflags = [
"/DELAYLOAD:api-ms-win-core-winrt-error-l1-1-0.dll",
"/DELAYLOAD:api-ms-win-core-winrt-l1-1-0.dll",
"/DELAYLOAD:api-ms-win-core-winrt-string-l1-1-0.dll",
"/DELAYLOAD:comctl32.dll",
"/DELAYLOAD:comdlg32.dll",
"/DELAYLOAD:credui.dll",
"/DELAYLOAD:cryptui.dll",
"/DELAYLOAD:d3d11.dll",
"/DELAYLOAD:d3d9.dll",
"/DELAYLOAD:dwmapi.dll",
"/DELAYLOAD:dxgi.dll",
"/DELAYLOAD:dxva2.dll",
"/DELAYLOAD:esent.dll",
"/DELAYLOAD:gdi32.dll",
"/DELAYLOAD:hid.dll",
"/DELAYLOAD:imagehlp.dll",
"/DELAYLOAD:imm32.dll",
"/DELAYLOAD:msi.dll",
"/DELAYLOAD:netapi32.dll",
"/DELAYLOAD:ncrypt.dll",
"/DELAYLOAD:ole32.dll",
"/DELAYLOAD:oleacc.dll",
"/DELAYLOAD:propsys.dll",
"/DELAYLOAD:psapi.dll",
"/DELAYLOAD:rpcrt4.dll",
"/DELAYLOAD:rstrtmgr.dll",
"/DELAYLOAD:setupapi.dll",
"/DELAYLOAD:shell32.dll",
"/DELAYLOAD:shlwapi.dll",
"/DELAYLOAD:urlmon.dll",
"/DELAYLOAD:user32.dll",
"/DELAYLOAD:usp10.dll",
"/DELAYLOAD:uxtheme.dll",
"/DELAYLOAD:wer.dll",
"/DELAYLOAD:wevtapi.dll",
"/DELAYLOAD:wininet.dll",
"/DELAYLOAD:winusb.dll",
"/DELAYLOAD:wsock32.dll",
"/DELAYLOAD:wtsapi32.dll",
]
}
config("delayloads_not_for_child_dll") {
ldflags = [
"/DELAYLOAD:advapi32.dll",
"/DELAYLOAD:crypt32.dll",
"/DELAYLOAD:dbghelp.dll",
"/DELAYLOAD:dhcpcsvc.dll",
"/DELAYLOAD:dwrite.dll",
"/DELAYLOAD:iphlpapi.dll",
"/DELAYLOAD:oleaut32.dll",
"/DELAYLOAD:secur32.dll",
"/DELAYLOAD:uiautomationcore.dll",
"/DELAYLOAD:userenv.dll",
"/DELAYLOAD:winhttp.dll",
"/DELAYLOAD:winmm.dll",
"/DELAYLOAD:winspool.drv",
"/DELAYLOAD:wintrust.dll",
"/DELAYLOAD:ws2_32.dll",
]
}
# CRT --------------------------------------------------------------------------
# Configures how the runtime library (CRT) is going to be used.
# See https://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx for a reference of
# what each value does.
config("default_crt") {
if (is_component_build) {
# Component mode: dynamic CRT. Since the library is shared, it requires
# exceptions or will give errors about things not matching, so keep
# exceptions on.
configs = [ ":dynamic_crt" ]
} else {
if (current_os == "winuwp") {
# https://blogs.msdn.microsoft.com/vcblog/2014/06/10/the-great-c-runtime-crt-refactoring/
# contains a details explanation of what is happening with the Windows
# CRT in Visual Studio releases related to Windows store applications.
configs = [ ":dynamic_crt" ]
} else {
# Desktop Windows: static CRT.
configs = [ ":static_crt" ]
}
}
}
# Use this to force use of the release CRT when building perf-critical build
# tools that need to be fully optimized even in debug builds, for those times
# when the debug CRT is part of the bottleneck. This also avoids *implicitly*
# defining _DEBUG.
config("release_crt") {
if (is_component_build) {
cflags = [ "/MD" ]
if (use_custom_libcxx) {
# On Windows, including libcpmt[d]/msvcprt[d] explicitly links the C++
# standard library, which libc++ needs for exception_ptr internals.
ldflags = [ "/DEFAULTLIB:msvcprt.lib" ]
}
} else {
cflags = [ "/MT" ]
if (use_custom_libcxx) {
ldflags = [ "/DEFAULTLIB:libcpmt.lib" ]
}
}
}
config("dynamic_crt") {
if (is_debug) {
# This pulls in the DLL debug CRT and defines _DEBUG
cflags = [ "/MDd" ]
if (use_custom_libcxx) {
ldflags = [ "/DEFAULTLIB:msvcprtd.lib" ]
}
} else {
cflags = [ "/MD" ]
if (use_custom_libcxx) {
ldflags = [ "/DEFAULTLIB:msvcprt.lib" ]
}
}
}
config("static_crt") {
if (is_debug) {
# This pulls in the static debug CRT and defines _DEBUG
cflags = [ "/MTd" ]
if (use_custom_libcxx) {
ldflags = [ "/DEFAULTLIB:libcpmtd.lib" ]
}
} else {
cflags = [ "/MT" ]
if (use_custom_libcxx) {
ldflags = [ "/DEFAULTLIB:libcpmt.lib" ]
}
}
}
# Subsystem --------------------------------------------------------------------
# This is appended to the subsystem to specify a minimum version.
if (current_cpu == "x64") {
# The number after the comma is the minimum required OS version.
# 5.02 = Windows Server 2003.
subsystem_version_suffix = ",5.02"
} else if (current_cpu == "arm64") {
# Windows ARM64 requires Windows 10.
subsystem_version_suffix = ",10.0"
} else {
# 5.01 = Windows XP.
subsystem_version_suffix = ",5.01"
}
config("console") {
ldflags = [ "/SUBSYSTEM:CONSOLE$subsystem_version_suffix" ]
}
config("windowed") {
ldflags = [ "/SUBSYSTEM:WINDOWS$subsystem_version_suffix" ]
}
# Incremental linking ----------------------------------------------------------
# Applies incremental linking or not depending on the current configuration.
config("default_incremental_linking") {
# Enable incremental linking for debug builds and all component builds - any
# builds where performance is not job one.
# TODO(thakis): Always turn this on with lld, no reason not to.
if (is_debug || is_component_build) {
ldflags = [ "/INCREMENTAL" ]
if (use_lld) {
# lld doesn't use ilk files and doesn't really have an incremental link
# mode; the only effect of the flag is that the .lib file timestamp isn't
# updated if the .lib doesn't change.
# TODO(thakis): Why pass /OPT:NOREF for lld, but not otherwise?
# TODO(thakis): /INCREMENTAL is on by default in link.exe, but not in
# lld.
ldflags += [ "/OPT:NOREF" ]
}
} else {
ldflags = [ "/INCREMENTAL:NO" ]
}
}
# Character set ----------------------------------------------------------------
# Not including this config means "ansi" (8-bit system codepage).
config("unicode") {
defines = [
"_UNICODE",
"UNICODE",
]
}
# Lean and mean ----------------------------------------------------------------
# Some third party code might not compile with WIN32_LEAN_AND_MEAN so we have
# to have a separate config for it. Remove this config from your target to
# get the "bloaty and accommodating" version of windows.h.
config("lean_and_mean") {
defines = [ "WIN32_LEAN_AND_MEAN" ]
}
# Nominmax --------------------------------------------------------------------
# Some third party code defines NOMINMAX before including windows.h, which
# then causes warnings when it's been previously defined on the command line.
# For such targets, this config can be removed.
config("nominmax") {
defines = [ "NOMINMAX" ]
}

585
build/vs_toolchain.py
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@ -1,585 +0,0 @@
#!/usr/bin/env python
# Copyright 2022 The Chromium Authors and Alex313031 and gz83. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from __future__ import print_function
import collections
import glob
import json
import os
import pipes
import platform
import re
import shutil
import stat
import subprocess
import sys
from gn_helpers import ToGNString
# VS 2019 16.61 with 10.0.20348.0 SDK, 10.0.19041 version of Debuggers
# with ARM64 libraries and UWP support.
# See go/chromium-msvc-toolchain for instructions about how to update the
# toolchain.
#
# When updating the toolchain, consider the following areas impacted by the
# toolchain version:
#
# * //base/win/windows_version.cc NTDDI preprocessor check
# Triggers a compiler error if the available SDK is older than the minimum.
# * //build/config/win/BUILD.gn NTDDI_VERSION value
# Affects the availability of APIs in the toolchain headers.
# * //docs/windows_build_instructions.md mentions of VS or Windows SDK.
# Keeps the document consistent with the toolchain version.
TOOLCHAIN_HASH = '1023ce2e82'
script_dir = os.path.dirname(os.path.realpath(__file__))
json_data_file = os.path.join(script_dir, 'win_toolchain.json')
# VS versions are listed in descending order of priority (highest first).
# The first version is assumed by this script to be the one that is packaged,
# which makes a difference for the arm64 runtime.
MSVS_VERSIONS = collections.OrderedDict([
('2022', '17.0'), # Default and packaged version of Visual Studio.
('2019', '16.0'),
('2017', '15.0'),
])
# List of preferred VC toolset version based on MSVS
# Order is not relevant for this dictionary.
MSVC_TOOLSET_VERSION = {
'2022': 'VC143',
'2019': 'VC142',
'2017': 'VC141',
}
def _HostIsWindows():
"""Returns True if running on a Windows host (including under cygwin)."""
return sys.platform in ('win32', 'cygwin')
def SetEnvironmentAndGetRuntimeDllDirs():
"""Sets up os.environ to use the depot_tools VS toolchain with gyp, and
returns the location of the VC runtime DLLs so they can be copied into
the output directory after gyp generation.
Return value is [x64path, x86path, 'Arm64Unused'] or None. arm64path is
generated separately because there are multiple folders for the arm64 VC
runtime.
"""
vs_runtime_dll_dirs = None
depot_tools_win_toolchain = \
bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1')))
# When running on a non-Windows host, only do this if the SDK has explicitly
# been downloaded before (in which case json_data_file will exist).
if ((_HostIsWindows() or os.path.exists(json_data_file))
and depot_tools_win_toolchain):
if ShouldUpdateToolchain():
if len(sys.argv) > 1 and sys.argv[1] == 'update':
update_result = Update()
else:
update_result = Update(no_download=True)
if update_result != 0:
raise Exception('Failed to update, error code %d.' % update_result)
with open(json_data_file, 'r') as tempf:
toolchain_data = json.load(tempf)
toolchain = toolchain_data['path']
version = toolchain_data['version']
win_sdk = toolchain_data.get('win_sdk')
wdk = toolchain_data['wdk']
# TODO(scottmg): The order unfortunately matters in these. They should be
# split into separate keys for x64/x86/arm64. (See CopyDlls call below).
# http://crbug.com/345992
vs_runtime_dll_dirs = toolchain_data['runtime_dirs']
# The number of runtime_dirs in the toolchain_data was two (x64/x86) but
# changed to three (x64/x86/arm64) and this code needs to handle both
# possibilities, which can change independently from this code.
if len(vs_runtime_dll_dirs) == 2:
vs_runtime_dll_dirs.append('Arm64Unused')
os.environ['GYP_MSVS_OVERRIDE_PATH'] = toolchain
os.environ['WINDOWSSDKDIR'] = win_sdk
os.environ['WDK_DIR'] = wdk
# Include the VS runtime in the PATH in case it's not machine-installed.
runtime_path = os.path.pathsep.join(vs_runtime_dll_dirs)
os.environ['PATH'] = runtime_path + os.path.pathsep + os.environ['PATH']
elif sys.platform == 'win32' and not depot_tools_win_toolchain:
if not 'GYP_MSVS_OVERRIDE_PATH' in os.environ:
os.environ['GYP_MSVS_OVERRIDE_PATH'] = DetectVisualStudioPath()
# When using an installed toolchain these files aren't needed in the output
# directory in order to run binaries locally, but they are needed in order
# to create isolates or the mini_installer. Copying them to the output
# directory ensures that they are available when needed.
bitness = platform.architecture()[0]
# When running 64-bit python the x64 DLLs will be in System32
# ARM64 binaries will not be available in the system directories because we
# don't build on ARM64 machines.
x64_path = 'System32' if bitness == '64bit' else 'Sysnative'
x64_path = os.path.join(os.path.expandvars('%windir%'), x64_path)
vs_runtime_dll_dirs = [x64_path,
os.path.join(os.path.expandvars('%windir%'),
'SysWOW64'),
'Arm64Unused']
return vs_runtime_dll_dirs
def _RegistryGetValueUsingWinReg(key, value):
"""Use the _winreg module to obtain the value of a registry key.
Args:
key: The registry key.
value: The particular registry value to read.
Return:
contents of the registry key's value, or None on failure. Throws
ImportError if _winreg is unavailable.
"""
import _winreg
try:
root, subkey = key.split('\\', 1)
assert root == 'HKLM' # Only need HKLM for now.
with _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, subkey) as hkey:
return _winreg.QueryValueEx(hkey, value)[0]
except WindowsError:
return None
def _RegistryGetValue(key, value):
try:
return _RegistryGetValueUsingWinReg(key, value)
except ImportError:
raise Exception('The python library _winreg not found.')
def GetVisualStudioVersion():
"""Return best available version of Visual Studio.
"""
supported_versions = list(MSVS_VERSIONS.keys())
# VS installed in depot_tools for Googlers
if bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1'))):
return supported_versions[0]
# VS installed in system for external developers
supported_versions_str = ', '.join('{} ({})'.format(v,k)
for k,v in MSVS_VERSIONS.items())
available_versions = []
for version in supported_versions:
# Checking vs%s_install environment variables.
# For example, vs2019_install could have the value
# "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community".
# Only vs2017_install, vs2019_install and vs2022_install are supported.
path = os.environ.get('vs%s_install' % version)
if path and os.path.exists(path):
available_versions.append(version)
break
# Detecting VS under possible paths.
if version >= '2022':
program_files_path_variable = '%ProgramFiles%'
else:
program_files_path_variable = '%ProgramFiles(x86)%'
path = os.path.expandvars(program_files_path_variable +
'/Microsoft Visual Studio/%s' % version)
if path and any(
os.path.exists(os.path.join(path, edition))
for edition in ('Enterprise', 'Professional', 'Community', 'Preview',
'BuildTools')):
available_versions.append(version)
break
if not available_versions:
raise Exception('No supported Visual Studio can be found.'
' Supported versions are: %s.' % supported_versions_str)
return available_versions[0]
def DetectVisualStudioPath():
"""Return path to the installed Visual Studio.
"""
# Note that this code is used from
# build/toolchain/win/setup_toolchain.py as well.
version_as_year = GetVisualStudioVersion()
# The VC++ >=2017 install location needs to be located using COM instead of
# the registry. For details see:
# https://blogs.msdn.microsoft.com/heaths/2016/09/15/changes-to-visual-studio-15-setup/
# For now we use a hardcoded default with an environment variable override.
if version_as_year >= '2022':
program_files_path_variable = '%ProgramFiles%'
else:
program_files_path_variable = '%ProgramFiles(x86)%'
for path in (os.environ.get('vs%s_install' % version_as_year),
os.path.expandvars(program_files_path_variable +
'/Microsoft Visual Studio/%s/Enterprise' %
version_as_year),
os.path.expandvars(program_files_path_variable +
'/Microsoft Visual Studio/%s/Professional' %
version_as_year),
os.path.expandvars(program_files_path_variable +
'/Microsoft Visual Studio/%s/Community' %
version_as_year),
os.path.expandvars(program_files_path_variable +
'/Microsoft Visual Studio/%s/Preview' %
version_as_year),
os.path.expandvars(program_files_path_variable +
'/Microsoft Visual Studio/%s/BuildTools' %
version_as_year)):
if path and os.path.exists(path):
return path
raise Exception('Visual Studio Version %s not found.' % version_as_year)
def _CopyRuntimeImpl(target, source, verbose=True):
"""Copy |source| to |target| if it doesn't already exist or if it needs to be
updated (comparing last modified time as an approximate float match as for
some reason the values tend to differ by ~1e-07 despite being copies of the
same file... https://crbug.com/603603).
"""
if (os.path.isdir(os.path.dirname(target)) and
(not os.path.isfile(target) or
abs(os.stat(target).st_mtime - os.stat(source).st_mtime) >= 0.01)):
if verbose:
print('Copying %s to %s...' % (source, target))
if os.path.exists(target):
# Make the file writable so that we can delete it now, and keep it
# readable.
os.chmod(target, stat.S_IWRITE | stat.S_IREAD)
os.unlink(target)
shutil.copy2(source, target)
# Make the file writable so that we can overwrite or delete it later,
# keep it readable.
os.chmod(target, stat.S_IWRITE | stat.S_IREAD)
def _SortByHighestVersionNumberFirst(list_of_str_versions):
"""This sorts |list_of_str_versions| according to version number rules
so that version "1.12" is higher than version "1.9". Does not work
with non-numeric versions like 1.4.a8 which will be higher than
1.4.a12. It does handle the versions being embedded in file paths.
"""
def to_int_if_int(x):
try:
return int(x)
except ValueError:
return x
def to_number_sequence(x):
part_sequence = re.split(r'[\\/\.]', x)
return [to_int_if_int(x) for x in part_sequence]
list_of_str_versions.sort(key=to_number_sequence, reverse=True)
def _CopyUCRTRuntime(target_dir, source_dir, target_cpu, suffix):
"""Copy both the msvcp and vccorlib runtime DLLs, only if the target doesn't
exist, but the target directory does exist."""
if target_cpu == 'arm64':
# Windows ARM64 VCRuntime is located at {toolchain_root}/VC/Redist/MSVC/
# {x.y.z}/[debug_nonredist/]arm64/Microsoft.VC14x.CRT/.
# Select VC toolset directory based on Visual Studio version
vc_redist_root = FindVCRedistRoot()
if suffix.startswith('.'):
vc_toolset_dir = 'Microsoft.{}.CRT' \
.format(MSVC_TOOLSET_VERSION[GetVisualStudioVersion()])
source_dir = os.path.join(vc_redist_root,
'arm64', vc_toolset_dir)
else:
vc_toolset_dir = 'Microsoft.{}.DebugCRT' \
.format(MSVC_TOOLSET_VERSION[GetVisualStudioVersion()])
source_dir = os.path.join(vc_redist_root, 'debug_nonredist',
'arm64', vc_toolset_dir)
file_parts = ('msvcp140', 'vccorlib140', 'vcruntime140')
if target_cpu == 'x64' and GetVisualStudioVersion() != '2017':
file_parts = file_parts + ('vcruntime140_1', )
for file_part in file_parts:
dll = file_part + suffix
target = os.path.join(target_dir, dll)
source = os.path.join(source_dir, dll)
_CopyRuntimeImpl(target, source)
# Copy the UCRT files from the Windows SDK. This location includes the
# api-ms-win-crt-*.dll files that are not found in the Windows directory.
# These files are needed for component builds. If WINDOWSSDKDIR is not set
# use the default SDK path. This will be the case when
# DEPOT_TOOLS_WIN_TOOLCHAIN=0 and vcvarsall.bat has not been run.
win_sdk_dir = os.path.normpath(
os.environ.get('WINDOWSSDKDIR',
os.path.expandvars('%ProgramFiles(x86)%'
'\\Windows Kits\\10')))
# ARM64 doesn't have a redist for the ucrt DLLs because they are always
# present in the OS.
if target_cpu != 'arm64':
# Starting with the 10.0.17763 SDK the ucrt files are in a version-named
# directory - this handles both cases.
redist_dir = os.path.join(win_sdk_dir, 'Redist')
version_dirs = glob.glob(os.path.join(redist_dir, '10.*'))
if len(version_dirs) > 0:
_SortByHighestVersionNumberFirst(version_dirs)
redist_dir = version_dirs[0]
ucrt_dll_dirs = os.path.join(redist_dir, 'ucrt', 'DLLs', target_cpu)
ucrt_files = glob.glob(os.path.join(ucrt_dll_dirs, 'api-ms-win-*.dll'))
assert len(ucrt_files) > 0
for ucrt_src_file in ucrt_files:
file_part = os.path.basename(ucrt_src_file)
ucrt_dst_file = os.path.join(target_dir, file_part)
_CopyRuntimeImpl(ucrt_dst_file, ucrt_src_file, False)
# We must copy ucrtbase.dll for x64/x86, and ucrtbased.dll for all CPU types.
if target_cpu != 'arm64' or not suffix.startswith('.'):
if not suffix.startswith('.'):
# ucrtbased.dll is located at {win_sdk_dir}/bin/{a.b.c.d}/{target_cpu}/
# ucrt/.
sdk_bin_root = os.path.join(win_sdk_dir, 'bin')
sdk_bin_sub_dirs = glob.glob(os.path.join(sdk_bin_root, '10.*'))
# Select the most recent SDK if there are multiple versions installed.
_SortByHighestVersionNumberFirst(sdk_bin_sub_dirs)
for directory in sdk_bin_sub_dirs:
sdk_redist_root_version = os.path.join(sdk_bin_root, directory)
if not os.path.isdir(sdk_redist_root_version):
continue
source_dir = os.path.join(sdk_redist_root_version, target_cpu, 'ucrt')
break
_CopyRuntimeImpl(os.path.join(target_dir, 'ucrtbase' + suffix),
os.path.join(source_dir, 'ucrtbase' + suffix))
def FindVCComponentRoot(component):
"""Find the most recent Tools or Redist or other directory in an MSVC install.
Typical results are {toolchain_root}/VC/{component}/MSVC/{x.y.z}. The {x.y.z}
version number part changes frequently so the highest version number found is
used.
"""
SetEnvironmentAndGetRuntimeDllDirs()
assert ('GYP_MSVS_OVERRIDE_PATH' in os.environ)
vc_component_msvc_root = os.path.join(os.environ['GYP_MSVS_OVERRIDE_PATH'],
'VC', component, 'MSVC')
vc_component_msvc_contents = glob.glob(
os.path.join(vc_component_msvc_root, '14.*'))
# Select the most recent toolchain if there are several.
_SortByHighestVersionNumberFirst(vc_component_msvc_contents)
for directory in vc_component_msvc_contents:
if os.path.isdir(directory):
return directory
raise Exception('Unable to find the VC %s directory.' % component)
def FindVCRedistRoot():
"""In >=VS2017, Redist binaries are located in
{toolchain_root}/VC/Redist/MSVC/{x.y.z}/{target_cpu}/.
This returns the '{toolchain_root}/VC/Redist/MSVC/{x.y.z}/' path.
"""
return FindVCComponentRoot('Redist')
def _CopyRuntime(target_dir, source_dir, target_cpu, debug):
"""Copy the VS runtime DLLs, only if the target doesn't exist, but the target
directory does exist. Handles VS 2015, 2017 and 2019."""
suffix = 'd.dll' if debug else '.dll'
# VS 2015, 2017 and 2019 use the same CRT DLLs.
_CopyUCRTRuntime(target_dir, source_dir, target_cpu, suffix)
def CopyDlls(target_dir, configuration, target_cpu):
"""Copy the VS runtime DLLs into the requested directory as needed.
configuration is one of 'Debug' or 'Release'.
target_cpu is one of 'x86', 'x64' or 'arm64'.
The debug configuration gets both the debug and release DLLs; the
release config only the latter.
"""
vs_runtime_dll_dirs = SetEnvironmentAndGetRuntimeDllDirs()
if not vs_runtime_dll_dirs:
return
x64_runtime, x86_runtime, arm64_runtime = vs_runtime_dll_dirs
if target_cpu == 'x64':
runtime_dir = x64_runtime
elif target_cpu == 'x86':
runtime_dir = x86_runtime
elif target_cpu == 'arm64':
runtime_dir = arm64_runtime
else:
raise Exception('Unknown target_cpu: ' + target_cpu)
_CopyRuntime(target_dir, runtime_dir, target_cpu, debug=False)
if configuration == 'Debug':
_CopyRuntime(target_dir, runtime_dir, target_cpu, debug=True)
_CopyDebugger(target_dir, target_cpu)
def _CopyDebugger(target_dir, target_cpu):
"""Copy dbghelp.dll and dbgcore.dll into the requested directory as needed.
target_cpu is one of 'x86', 'x64' or 'arm64'.
dbghelp.dll is used when Chrome needs to symbolize stacks. Copying this file
from the SDK directory avoids using the system copy of dbghelp.dll which then
ensures compatibility with recent debug information formats, such as VS
2017 /debug:fastlink PDBs.
dbgcore.dll is needed when using some functions from dbghelp.dll (like
MinidumpWriteDump).
"""
win_sdk_dir = SetEnvironmentAndGetSDKDir()
if not win_sdk_dir:
return
# List of debug files that should be copied, the first element of the tuple is
# the name of the file and the second indicates if it's optional.
debug_files = [('dbghelp.dll', False), ('dbgcore.dll', True)]
# The UCRT is not a redistributable component on arm64.
if target_cpu != 'arm64':
debug_files.extend([('api-ms-win-downlevel-kernel32-l2-1-0.dll', False),
('api-ms-win-eventing-provider-l1-1-0.dll', False)])
for debug_file, is_optional in debug_files:
full_path = os.path.join(win_sdk_dir, 'Debuggers', target_cpu, debug_file)
if not os.path.exists(full_path):
if is_optional:
continue
else:
raise Exception('%s not found in "%s"\r\nYou must install '
'Windows 10 SDK version 10.0.20348.0 including the '
'"Debugging Tools for Windows" feature.' %
(debug_file, full_path))
target_path = os.path.join(target_dir, debug_file)
_CopyRuntimeImpl(target_path, full_path)
def _GetDesiredVsToolchainHashes():
"""Load a list of SHA1s corresponding to the toolchains that we want installed
to build with."""
# Third parties that do not have access to the canonical toolchain can map
# canonical toolchain version to their own toolchain versions.
toolchain_hash_mapping_key = 'GYP_MSVS_HASH_%s' % TOOLCHAIN_HASH
return [os.environ.get(toolchain_hash_mapping_key, TOOLCHAIN_HASH)]
def ShouldUpdateToolchain():
"""Check if the toolchain should be upgraded."""
if not os.path.exists(json_data_file):
return True
with open(json_data_file, 'r') as tempf:
toolchain_data = json.load(tempf)
version = toolchain_data['version']
env_version = GetVisualStudioVersion()
# If there's a mismatch between the version set in the environment and the one
# in the json file then the toolchain should be updated.
return version != env_version
def Update(force=False, no_download=False):
"""Requests an update of the toolchain to the specific hashes we have at
this revision. The update outputs a .json of the various configuration
information required to pass to gyp which we use in |GetToolchainDir()|.
If no_download is true then the toolchain will be configured if present but
will not be downloaded.
"""
if force != False and force != '--force':
print('Unknown parameter "%s"' % force, file=sys.stderr)
return 1
if force == '--force' or os.path.exists(json_data_file):
force = True
depot_tools_win_toolchain = \
bool(int(os.environ.get('DEPOT_TOOLS_WIN_TOOLCHAIN', '1')))
if (_HostIsWindows() or force) and depot_tools_win_toolchain:
import find_depot_tools
depot_tools_path = find_depot_tools.add_depot_tools_to_path()
# On Linux, the file system is usually case-sensitive while the Windows
# SDK only works on case-insensitive file systems. If it doesn't already
# exist, set up a ciopfs fuse mount to put the SDK in a case-insensitive
# part of the file system.
toolchain_dir = os.path.join(depot_tools_path, 'win_toolchain', 'vs_files')
# For testing this block, unmount existing mounts with
# fusermount -u third_party/depot_tools/win_toolchain/vs_files
if sys.platform.startswith('linux') and not os.path.ismount(toolchain_dir):
import distutils.spawn
ciopfs = distutils.spawn.find_executable('ciopfs')
if not ciopfs:
# ciopfs not found in PATH; try the one downloaded from the DEPS hook.
ciopfs = os.path.join(script_dir, 'ciopfs')
if not os.path.isdir(toolchain_dir):
os.mkdir(toolchain_dir)
if not os.path.isdir(toolchain_dir + '.ciopfs'):
os.mkdir(toolchain_dir + '.ciopfs')
# Without use_ino, clang's #pragma once and Wnonportable-include-path
# both don't work right, see https://llvm.org/PR34931
# use_ino doesn't slow down builds, so it seems there's no drawback to
# just using it always.
subprocess.check_call([
ciopfs, '-o', 'use_ino', toolchain_dir + '.ciopfs', toolchain_dir])
get_toolchain_args = [
sys.executable,
os.path.join(depot_tools_path,
'win_toolchain',
'get_toolchain_if_necessary.py'),
'--output-json', json_data_file,
] + _GetDesiredVsToolchainHashes()
if force:
get_toolchain_args.append('--force')
if no_download:
get_toolchain_args.append('--no-download')
subprocess.check_call(get_toolchain_args)
return 0
def NormalizePath(path):
while path.endswith('\\'):
path = path[:-1]
return path
def SetEnvironmentAndGetSDKDir():
"""Gets location information about the current sdk (must have been
previously updated by 'update'). This is used for the GN build."""
SetEnvironmentAndGetRuntimeDllDirs()
# If WINDOWSSDKDIR is not set, search the default SDK path and set it.
if not 'WINDOWSSDKDIR' in os.environ:
default_sdk_path = os.path.expandvars('%ProgramFiles(x86)%'
'\\Windows Kits\\10')
if os.path.isdir(default_sdk_path):
os.environ['WINDOWSSDKDIR'] = default_sdk_path
return NormalizePath(os.environ['WINDOWSSDKDIR'])
def GetToolchainDir():
"""Gets location information about the current toolchain (must have been
previously updated by 'update'). This is used for the GN build."""
runtime_dll_dirs = SetEnvironmentAndGetRuntimeDllDirs()
win_sdk_dir = SetEnvironmentAndGetSDKDir()
print('''vs_path = %s
sdk_path = %s
vs_version = %s
wdk_dir = %s
runtime_dirs = %s
''' % (ToGNString(NormalizePath(os.environ['GYP_MSVS_OVERRIDE_PATH'])),
ToGNString(win_sdk_dir), ToGNString(GetVisualStudioVersion()),
ToGNString(NormalizePath(os.environ.get('WDK_DIR', ''))),
ToGNString(os.path.pathsep.join(runtime_dll_dirs or ['None']))))
def main():
commands = {
'update': Update,
'get_toolchain_dir': GetToolchainDir,
'copy_dlls': CopyDlls,
}
if len(sys.argv) < 2 or sys.argv[1] not in commands:
print('Expected one of: %s' % ', '.join(commands), file=sys.stderr)
return 1
return commands[sys.argv[1]](*sys.argv[2:])
if __name__ == '__main__':
sys.exit(main())

98
build/win/reorder-imports.py
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@ -1,98 +0,0 @@
#!/usr/bin/env python
# Copyright 2022 The Chromium Authors, Alex313031, and gz83. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import glob
import optparse
import os
import shutil
import subprocess
import sys
sys.path.insert(
0,
os.path.join(os.path.dirname(__file__), '..', '..', 'third_party',
'pefile_py3'))
import pefile
def reorder_imports(input_dir, output_dir, architecture):
"""Swap chrome_elf.dll to be the first import of chrome.exe.
Also copy over any related files that might be needed
(pdbs, manifests etc.).
"""
# TODO(thakis): See if there is a reliable way to write the
# correct executable in the first place, so that this script
# only needs to verify that and not write a whole new exe.
input_image = os.path.join(input_dir, 'thorium.exe')
output_image = os.path.join(output_dir, 'thorium.exe')
# pefile mmap()s the whole executable, and then parses parts of
# it into python data structures for ease of processing.
# To write the file again, only the mmap'd data is written back,
# so modifying the parsed python objects generally has no effect.
# However, parsed raw data ends up in pe.Structure instances,
# and these all get serialized back when the file gets written.
# So things that are in a Structure must have their data set
# through the Structure, while other data must bet set through
# the set_bytes_*() methods.
pe = pefile.PE(input_image, fast_load=True)
if architecture == 'x64' or architecture == 'arm64':
assert pe.PE_TYPE == pefile.OPTIONAL_HEADER_MAGIC_PE_PLUS
else:
assert pe.PE_TYPE == pefile.OPTIONAL_HEADER_MAGIC_PE
pe.parse_data_directories(directories=[
pefile.DIRECTORY_ENTRY['IMAGE_DIRECTORY_ENTRY_IMPORT']])
found_elf = False
for i, peimport in enumerate(pe.DIRECTORY_ENTRY_IMPORT):
if peimport.dll.lower() == b'chrome_elf.dll':
assert not found_elf, 'only one chrome_elf.dll import expected'
found_elf = True
if i > 0:
swap = pe.DIRECTORY_ENTRY_IMPORT[0]
# Morally we want to swap peimport.struct and swap.struct here,
# but the pe module doesn't expose a public method on Structure
# to get all data of a Structure without explicitly listing all
# field names.
# NB: OriginalFirstThunk and Characteristics are an union both at
# offset 0, handling just one of them is enough.
peimport.struct.OriginalFirstThunk, swap.struct.OriginalFirstThunk = \
swap.struct.OriginalFirstThunk, peimport.struct.OriginalFirstThunk
peimport.struct.TimeDateStamp, swap.struct.TimeDateStamp = \
swap.struct.TimeDateStamp, peimport.struct.TimeDateStamp
peimport.struct.ForwarderChain, swap.struct.ForwarderChain = \
swap.struct.ForwarderChain, peimport.struct.ForwarderChain
peimport.struct.Name, swap.struct.Name = \
swap.struct.Name, peimport.struct.Name
peimport.struct.FirstThunk, swap.struct.FirstThunk = \
swap.struct.FirstThunk, peimport.struct.FirstThunk
assert found_elf, 'chrome_elf.dll import not found'
pe.write(filename=output_image)
for fname in glob.iglob(os.path.join(input_dir, 'thorium.exe.*')):
shutil.copy(fname, os.path.join(output_dir, os.path.basename(fname)))
return 0
def main(argv):
usage = 'reorder_imports.py -i <input_dir> -o <output_dir> -a <target_arch>'
parser = optparse.OptionParser(usage=usage)
parser.add_option('-i', '--input', help='reorder thorium.exe in DIR',
metavar='DIR')
parser.add_option('-o', '--output', help='write new thorium.exe to DIR',
metavar='DIR')
parser.add_option('-a', '--arch', help='architecture of build (optional)',
default='ia32')
opts, args = parser.parse_args()
if not opts.input or not opts.output:
parser.error('Please provide and input and output directory')
return reorder_imports(opts.input, opts.output, opts.arch)
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))