starboard/build/config/win/BUILD.gn - cobalt - Git at Google

 # Copyright 2023 The Cobalt Authors. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.

 import("//build/config/win/visual_studio_version.gni")

 # TODO(andrewsavage): No way host builds need all these flags
 config("host") {
   configs = [ ":common" ]
 }

 config("common") {
   configs = []

   cflags_cc = [ "/TP" ]
   cflags = [ "/Z7" ]
   ldflags = [
     "/NXCOMPAT",
     "/MANIFEST:NO",
   ]
   libs = []
   include_dirs = []
   arflags = []
   defines = [
     "_UNICODE",
     "UNICODE",
   ]

   # msvs_base
   # OutputDirectory and IntermediateDirectory, maybe CharacterSet
   include_dirs += [
     "$wdk_include_path/shared",
     "$wdk_include_path/ucrt",
     "$wdk_include_path/um",
     "$wdk_include_path/winrt",
     "$msvc_path/include",
   ]
   cflags += [
     "/EHsc",
     "/std:c++14",
   ]

   # msvs_debug/_devel/etc
   ldflags += [ "/INCREMENTAL:NO" ]
   if (is_debug) {
     cflags += [
       "/Od",

       # Check stack frame validity and check for uninitialized variables at run time.
       "/RTC1",
     ]
   } else {
     cflags += [ "/O2" ]
   }

   if (!is_gold) {
     libs += [ "dbghelp.lib" ]
   }

   if (is_debug || is_devel) {
     cflags += [
       # Use debug multithreaded library.
       "/MDd",
       "/GS",

       # Unit tests can have huge object files.
       "/bigobj",
     ]
   } else {
     cflags += [
       # Use release multithreaded library.
       "/MD",

       # Unreferenced variable.
       # Often variables are only referenced in DCHECKs.
       "/wd4189",
     ]
     ldflags += [
       "/OPT:REF",
       "/OPT:ICF",
     ]
   }

   cflags += [
     # Check for buffer overruns.
     "/GS",

     # "for" loop's initializer go out of scope after the for loop.
     "/Zc:forScope",

     # wchar_t is treated as a built-in type.
     "/Zc:wchar_t",

     # Don't send error reports to MS.
     "/errorReport:none",
   ]

   arflags += [
     # Linking statically with C++/CX library is not recommended.
     # TODO: Remove after removing ComponentExtensions
     "/ignore:4264",
   ]

   cflags += [
     # Allow unused function input parameter.
     "/wd4100",

     # Conditional expression is constant.
     # Triggers in many legitimate cases, like branching on a constant declared
     # in type traits.
     "/wd4127",

     # Disable anonymous union warnings.
     "/wd4201",

     # 4244 (Level 2) - Implicit conversion from float to int
     # 4244 (Level 3) - Implicit conversion from int to something smaller
     # than int.
     # 4244 (Level 4) - Implicit conversion of types, which may result in
     # data loss.
     "/wd4244",

     # Class has virtual functions, but destructor is not virtual.
     # Far less useful than in GCC because doesn't take into account the fact
     # that destructor is not public.
     "/wd4265",

     # Inconsistent DLL linkage
     "/wd4273",

     # Matching delete operator for `new`. 4291 is also ignored by Chromium.
     "/wd4291",

     # Double -> float truncation. Not enabled on other compilers.
     "/wd4305",

     # cast truncates constant value.
     # We do not care.
     "/wd4309",

     # casting constant number.
     "/wd4310",

     # An rvalue cannot be bound to a non-const reference.
     # In previous versions of Visual C++, it was possible to bind an rvalue
     # to a non-const reference in a direct initialization. This warning
     # is useless as it simply describes proper C++ behavior.
     "/wd4350",

     # layout of class may have changed from a previous version of
     # the compiler due to better packing of member. We don't care about
     # binary compatibility with other compiler versions.
     "/wd4371",

     # relative include path contains '..'.
     # This occurs in a lot third party libraries and we don't care.
     "/wd4464",

     # decorated name length exceeded, name was truncated.
     "/wd4503",

     # assignment operator could not be generated.
     # This is expected for structs with const members.
     "/wd4512",

     # Unreferenced inline function has been removed.
     # While detection of dead code is good, this warning triggers in
     # third-party libraries which renders it useless.
     "/wd4514",

     # Expression before comma has no effect.
     # Cannot be used because Microsoft uses _ASSERTE(("message", 0)) trick
     # in malloc.h which is included pretty much everywhere.
     "/wd4548",

     # Use of noexcept in targets compiled without /EHsc triggers a warning
     # "termination on exception is not guaranteed" which we consider benign
     # because we don't expect exceptions to cross the boundary of modules
     # compiled with /EHsc.
     "/wd4577",

     # Copy constructor could not be generated because a base class copy
     # constructor is inaccessible.
     # This is an expected consequence of using DISALLOW_COPY_AND_ASSIGN().
     "/wd4625",

     # Assignment operator could not be generated because a base class
     # assignment operator is inaccessible.
     # This is an expected consequence of using DISALLOW_COPY_AND_ASSIGN().
     "/wd4626",

     # Digraphs not supported.
     "/wd4628",

     # Sometimes template definitions and declarations are separate and MSVC
     # complains when it fails to find the definition on seeing the template.
     "/wd4661",

     # Symbol is not defined as a preprocessor macro, replacing with '0'.
     # Seems like common practice, used in Windows SDK and gtest.
     "/wd4668",

     # Function not inlined.
     # It's up to the compiler to decide what to inline.
     "/wd4710",

     # Function selected for inline expansion.
     # It's up to the compiler to decide what to inline.
     "/wd4711",

     # The type and order of elements caused the compiler to add padding
     # to the end of a struct.
     # Unsurprisingly, most of the structs become larger because of padding
     # but it's a universally acceptable price for better performance.
     "/wd4820",

     # Disable static analyzer warning for std::min and std::max with
     # objects.
     # https://connect.microsoft.com/VisualStudio/feedback/details/783808/static-analyzer-warning-c28285-for-std-min-and-std-max
     "/wd28285",

     # Deprecated function warning.
     "/wd4996",

     # Compiler warnings introduced after upgrading to Visual Studio 2022.
     # Implicit conversion from 'type' to bool. Possible information loss.
     "/wd4800",

     # Discarding return value of function with 'nodiscard' attribute.
     "/wd4834",
     "/wd4858",

     # Unnamed class used in typedef name cannot declare members other than
     # non-static data members, member enumerations, or member classes.
     "/wd5208",
   ]
 }
	# Copyright 2023 The Cobalt Authors. All Rights Reserved.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	import("//build/config/win/visual_studio_version.gni")

	# TODO(andrewsavage): No way host builds need all these flags
	config("host") {
	configs = [ ":common" ]
	}

	config("common") {
	configs = []

	cflags_cc = [ "/TP" ]
	cflags = [ "/Z7" ]
	ldflags = [
	"/NXCOMPAT",
	"/MANIFEST:NO",
	]
	libs = []
	include_dirs = []
	arflags = []
	defines = [
	"_UNICODE",
	"UNICODE",
	]

	# msvs_base
	# OutputDirectory and IntermediateDirectory, maybe CharacterSet
	include_dirs += [
	"$wdk_include_path/shared",
	"$wdk_include_path/ucrt",
	"$wdk_include_path/um",
	"$wdk_include_path/winrt",
	"$msvc_path/include",
	]
	cflags += [
	"/EHsc",
	"/std:c++14",
	]

	# msvs_debug/_devel/etc
	ldflags += [ "/INCREMENTAL:NO" ]
	if (is_debug) {
	cflags += [
	"/Od",

	# Check stack frame validity and check for uninitialized variables at run time.
	"/RTC1",
	]
	} else {
	cflags += [ "/O2" ]
	}

	if (!is_gold) {
	libs += [ "dbghelp.lib" ]
	}

	if (is_debug \|\| is_devel) {
	cflags += [
	# Use debug multithreaded library.
	"/MDd",
	"/GS",

	# Unit tests can have huge object files.
	"/bigobj",
	]
	} else {
	cflags += [
	# Use release multithreaded library.
	"/MD",

	# Unreferenced variable.
	# Often variables are only referenced in DCHECKs.
	"/wd4189",
	]
	ldflags += [
	"/OPT:REF",
	"/OPT:ICF",
	]
	}

	cflags += [
	# Check for buffer overruns.
	"/GS",

	# "for" loop's initializer go out of scope after the for loop.
	"/Zc:forScope",

	# wchar_t is treated as a built-in type.
	"/Zc:wchar_t",

	# Don't send error reports to MS.
	"/errorReport:none",
	]

	arflags += [
	# Linking statically with C++/CX library is not recommended.
	# TODO: Remove after removing ComponentExtensions
	"/ignore:4264",
	]

	cflags += [
	# Allow unused function input parameter.
	"/wd4100",

	# Conditional expression is constant.
	# Triggers in many legitimate cases, like branching on a constant declared
	# in type traits.
	"/wd4127",

	# Disable anonymous union warnings.
	"/wd4201",

	# 4244 (Level 2) - Implicit conversion from float to int
	# 4244 (Level 3) - Implicit conversion from int to something smaller
	# than int.
	# 4244 (Level 4) - Implicit conversion of types, which may result in
	# data loss.
	"/wd4244",

	# Class has virtual functions, but destructor is not virtual.
	# Far less useful than in GCC because doesn't take into account the fact
	# that destructor is not public.
	"/wd4265",

	# Inconsistent DLL linkage
	"/wd4273",

	# Matching delete operator for `new`. 4291 is also ignored by Chromium.
	"/wd4291",

	# Double -> float truncation. Not enabled on other compilers.
	"/wd4305",

	# cast truncates constant value.
	# We do not care.
	"/wd4309",

	# casting constant number.
	"/wd4310",

	# An rvalue cannot be bound to a non-const reference.
	# In previous versions of Visual C++, it was possible to bind an rvalue
	# to a non-const reference in a direct initialization. This warning
	# is useless as it simply describes proper C++ behavior.
	"/wd4350",

	# layout of class may have changed from a previous version of
	# the compiler due to better packing of member. We don't care about
	# binary compatibility with other compiler versions.
	"/wd4371",

	# relative include path contains '..'.
	# This occurs in a lot third party libraries and we don't care.
	"/wd4464",

	# decorated name length exceeded, name was truncated.
	"/wd4503",

	# assignment operator could not be generated.
	# This is expected for structs with const members.
	"/wd4512",

	# Unreferenced inline function has been removed.
	# While detection of dead code is good, this warning triggers in
	# third-party libraries which renders it useless.
	"/wd4514",

	# Expression before comma has no effect.
	# Cannot be used because Microsoft uses _ASSERTE(("message", 0)) trick
	# in malloc.h which is included pretty much everywhere.
	"/wd4548",

	# Use of noexcept in targets compiled without /EHsc triggers a warning
	# "termination on exception is not guaranteed" which we consider benign
	# because we don't expect exceptions to cross the boundary of modules
	# compiled with /EHsc.
	"/wd4577",

	# Copy constructor could not be generated because a base class copy
	# constructor is inaccessible.
	# This is an expected consequence of using DISALLOW_COPY_AND_ASSIGN().
	"/wd4625",

	# Assignment operator could not be generated because a base class
	# assignment operator is inaccessible.
	# This is an expected consequence of using DISALLOW_COPY_AND_ASSIGN().
	"/wd4626",

	# Digraphs not supported.
	"/wd4628",

	# Sometimes template definitions and declarations are separate and MSVC
	# complains when it fails to find the definition on seeing the template.
	"/wd4661",

	# Symbol is not defined as a preprocessor macro, replacing with '0'.
	# Seems like common practice, used in Windows SDK and gtest.
	"/wd4668",

	# Function not inlined.
	# It's up to the compiler to decide what to inline.
	"/wd4710",

	# Function selected for inline expansion.
	# It's up to the compiler to decide what to inline.
	"/wd4711",

	# The type and order of elements caused the compiler to add padding
	# to the end of a struct.
	# Unsurprisingly, most of the structs become larger because of padding
	# but it's a universally acceptable price for better performance.
	"/wd4820",

	# Disable static analyzer warning for std::min and std::max with
	# objects.
	# https://connect.microsoft.com/VisualStudio/feedback/details/783808/static-analyzer-warning-c28285-for-std-min-and-std-max
	"/wd28285",

	# Deprecated function warning.
	"/wd4996",

	# Compiler warnings introduced after upgrading to Visual Studio 2022.
	# Implicit conversion from 'type' to bool. Possible information loss.
	"/wd4800",

	# Discarding return value of function with 'nodiscard' attribute.
	"/wd4834",
	"/wd4858",

	# Unnamed class used in typedef name cannot declare members other than
	# non-static data members, member enumerations, or member classes.
	"/wd5208",
	]
	}