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      1 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 # Use of this source code is governed by a BSD-style license that can be
      3 # found in the LICENSE file.
      4 
      5 import("//build/config/win/visual_studio_version.gni")
      6 
      7 # Compiler setup for the Windows SDK. Applied to all targets.
      8 config("sdk") {
      9   # The include path is the stuff returned by the script.
     10   #include_dirs = msvc_config[0]  TODO(brettw) make this work.
     11 
     12   defines = [
     13     "_ATL_NO_OPENGL",
     14     "_WIN32_WINNT=0x0602",
     15     "_WINDOWS",
     16     "CERT_CHAIN_PARA_HAS_EXTRA_FIELDS",
     17     "NTDDI_VERSION=0x06020000",
     18     "PSAPI_VERSION=1",
     19     "WIN32",
     20     "WINVER=0x0602",
     21   ]
     22 
     23   # The Windows SDK include directories must be first. They both have a sal.h,
     24   # and the SDK one is newer and the SDK uses some newer features from it not
     25   # present in the Visual Studio one.
     26   include_dirs = [
     27     "$windows_sdk_path\Include\shared",
     28     "$windows_sdk_path\Include\um",
     29     "$windows_sdk_path\Include\winrt",
     30     "$visual_studio_path\VC\include",
     31     "$visual_studio_path\VC\atlmfc\include",
     32   ]
     33 
     34   if (is_visual_studio_express) {
     35     include_dirs += [
     36       "$wdk_path/inc/atl71",
     37       "$wdk_path/inc/mfc42",
     38     ]
     39 
     40     # https://code.google.com/p/chromium/issues/detail?id=372451#c20
     41     # Warning 4702 ("Unreachable code") should be re-enabled once Express users
     42     # are updated to VS2013 Update 2.
     43     cflags = [ "/wd4702" ]
     44   } else {
     45     # Only supported on non-Express versions.
     46     defines += [ "_SECURE_ATL" ]
     47   }
     48 }
     49 
     50 # Linker flags for Windows SDK setup, this is applied only to EXEs and DLLs.
     51 config("sdk_link") {
     52   if (cpu_arch == "x64") {
     53     ldflags = [ "/MACHINE:X64" ]
     54     lib_dirs = [
     55       "$windows_sdk_path\Lib\win8\um\x64",
     56       "$visual_studio_path\VC\lib\amd64",
     57       "$visual_studio_path\VC\atlmfc\lib\amd64",
     58     ]
     59     if (is_visual_studio_express) {
     60       lib_dirs += [ "$wdk_path/lib/ATL/amd64" ]
     61     }
     62   } else {
     63     ldflags = [
     64       "/MACHINE:X86",
     65       "/SAFESEH",  # Not compatible with x64 so use only for x86.
     66     ]
     67     lib_dirs = [
     68       "$windows_sdk_path\Lib\win8\um\x86",
     69       "$visual_studio_path\VC\lib",
     70       "$visual_studio_path\VC\atlmfc\lib",
     71     ]
     72     if (is_visual_studio_express) {
     73       lib_dirs += [ "$wdk_path/lib/ATL/i386" ]
     74     }
     75     if (!is_asan) {
     76       ldflags += [ "/largeaddressaware" ]
     77     }
     78   }
     79 
     80   if (is_visual_studio_express) {
     81     # Explicitly required when using the ATL with express.
     82     libs = [ "atlthunk.lib" ]
     83 
     84     # ATL 8.0 included in WDK 7.1 makes the linker to generate almost eight
     85     # hundred LNK4254 and LNK4078 warnings:
     86     #   - warning LNK4254: section 'ATL' (50000040) merged into '.rdata'
     87     #     (40000040) with different attributes
     88     #   - warning LNK4078: multiple 'ATL' sections found with different
     89     #     attributes
     90     ldflags += [ "/ignore:4254", "/ignore:4078" ]
     91   }
     92 }
     93 
     94 # This default linker setup is provided separately from the SDK setup so
     95 # targets who want different library configurations can remove this and specify
     96 # their own.
     97 config("common_linker_setup") {
     98   ldflags = [
     99     "/FIXED:NO",
    100     "/ignore:4199",
    101     "/ignore:4221",
    102     "/NXCOMPAT",
    103   ]
    104 
    105   # ASLR makes debugging with windbg difficult because Chrome.exe and
    106   # Chrome.dll share the same base name. As result, windbg will name the
    107   # Chrome.dll module like chrome_<base address>, where <base address>
    108   # typically changes with each launch. This in turn means that breakpoints in
    109   # Chrome.dll don't stick from one launch to the next. For this reason, we
    110   # turn ASLR off in debug builds.
    111   if (is_debug) {
    112     ldflags += [ "/DYNAMICBASE:NO" ]
    113   } else {
    114     ldflags += [ "/DYNAMICBASE" ]
    115   }
    116 
    117   # Delay loaded DLLs.
    118   ldflags += [
    119     "/DELAYLOAD:dbghelp.dll",
    120     "/DELAYLOAD:dwmapi.dll",
    121     "/DELAYLOAD:shell32.dll",
    122     "/DELAYLOAD:uxtheme.dll",
    123   ]
    124 }
    125 
    126 # Subsystem --------------------------------------------------------------------
    127 
    128 config("console") {
    129   ldflags = [ "/SUBSYSTEM:CONSOLE" ]
    130 }
    131 config("windowed") {
    132   ldflags = [ "/SUBSYSTEM:WINDOWS" ]
    133 }
    134 
    135 # Incremental linking ----------------------------------------------------------
    136 
    137 config("incremental_linking") {
    138   ldflags = [ "/INCREMENTAL" ]
    139 }
    140 config("no_incremental_linking") {
    141   ldflags = [ "/INCREMENTAL:NO" ]
    142 }
    143 
    144 # Character set ----------------------------------------------------------------
    145 
    146 # Not including this config means "ansi" (8-bit system codepage).
    147 config("unicode") {
    148   defines = [
    149     "_UNICODE",
    150     "UNICODE",
    151   ]
    152 }
    153 
    154 # Lean and mean ----------------------------------------------------------------
    155 
    156 # Some third party code might not compile with WIN32_LEAN_AND_MEAN so we have
    157 # to have a separate config for it. Remove this config from your target to
    158 # get the "bloaty and accomodating" version of windows.h.
    159 config("lean_and_mean") {
    160   defines = [
    161     "WIN32_LEAN_AND_MEAN",
    162   ]
    163 }
    164 
    165 # Nominmax --------------------------------------------------------------------
    166 
    167 # Some third party code defines NOMINMAX before including windows.h, which
    168 # then causes warnings when it's been previously defined on the command line.
    169 # For such targets, this config can be removed.
    170 
    171 config("nominmax") {
    172   defines = [
    173     "NOMINMAX",
    174   ]
    175 }
    176