win: Add win_linker_timing setting

build/config/win/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. 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/clang/clang.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/win/visual_studio_version.gni")
 import("//build/toolchain/toolchain.gni")
 
 assert(is_win)
 
 declare_args() {
   # Set this to true to enable static analysis through Visual Studio's
   # /analyze. This dramatically slows compiles and reports thousands of
   # warnings, so normally this is done on a build machine and only the new
   # warnings are examined.
   use_vs_code_analysis = false
+
+  # Turn this on to have the linker output extra timing information.
+  win_linker_timing = 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
@@ skipping 231 matching lines @@
     "/NXCOMPAT",
 
     # Suggested by Microsoft Devrel to avoid
     #   LINK : fatal error LNK1248: image size (80000000)
     #   exceeds maximum allowable size (80000000)
     # which started happening more regularly after VS2013 Update 4.
     # Needs to be a bit lower for VS2015, or else errors out.
     "/maxilksize:0x7ff00000",
   ]
 
-  # Flags not supported in version 2013.
-  if (visual_studio_version != "2013" && visual_studio_version != "2013e") {
-    ldflags += [
-      # Tell the linker to crash on failures.
-      "/fastfail",
-    ]
-  }
+  ldflags += [
+    # Tell the linker to crash on failures.
+    "/fastfail",
+  ]
 
   # ASLR makes debugging with windbg difficult because Chrome.exe and
   # Chrome.dll share the same base name. As result, windbg will name the
   # Chrome.dll module like chrome_<base address>, where <base address>
   # typically changes with each launch. This in turn means that breakpoints in
   # Chrome.dll don't stick from one launch to the next. For this reason, we
   # turn ASLR off in debug builds.
   if (is_debug) {
     ldflags += [ "/DYNAMICBASE:NO" ]
   } else {
     ldflags += [ "/DYNAMICBASE" ]
   }
+
+  if (win_linker_timing) {
+    ldflags += [
+      "/time",
+      "/verbose:incr",
+    ]
+  }
 }
 
 # 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 {
@@ skipping 93 matching lines @@
 
 # Internal stuff --------------------------------------------------------------
 
 # Config used by the MIDL template to disable warnings.
 config("midl_warnings") {
   if (is_clang) {
     # MIDL generates code like "#endif !_MIDL_USE_GUIDDEF_".
     cflags = [ "-Wno-extra-tokens" ]
   }
 }