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