Purify support:

* Add third_party/purify/pure_api.c to the base\base_lib.scons sources.
* Support specification of CHROME_BUILD_TYPE (and CHROMIUM_BUILD
  while we're here) either on the command line or as an
  external environment variable.
* Fix syntax error in release_impl_purify.scons (previously unused).
* Add a central $CHROMIUM_CC_OPT_FLAGS variable (included in $CCFLAGS)
  that can be used to set explicitly the optimization level without
  having to worry about optimization flags being pulled in from other
  settings files.
Review URL: http://codereview.chromium.org/11368

git-svn-id: http://src.chromium.org/svn/trunk/src/build@5887 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

SConscript.main

@@ -19,6 +19,15 @@ default_warnings = ['no-no-parallel-support']
 SetOption('warn', default_warnings + GetOption('warn'))
 
 
+chrome_build_type = ARGUMENTS.get('CHROME_BUILD_TYPE')
+if chrome_build_type is None:
+  chrome_build_type = os.environ.get('CHROME_BUILD_TYPE', ''),
+
+chromium_build = ARGUMENTS.get('CHROMIUM_BUILD')
+if chromium_build is None:
+  chromium_build = os.environ.get('CHROMIUM_BUILD', ''),
+
+
 root_env = Environment(
     tools = ['component_setup',
              'chromium_builders',
@@ -30,8 +39,8 @@ root_env = Environment(
     # All supported system libraries, for the help message
     all_system_libs = [],
 
-    CHROME_BUILD_TYPE = os.environ.get('CHROME_BUILD_TYPE', ''),
-    CHROMIUM_BUILD = os.environ.get('CHROMIUM_BUILD', ''),
+    CHROME_BUILD_TYPE = chrome_build_type,
+    CHROMIUM_BUILD = chromium_build,
 
     CHROME_SRC_DIR = '$MAIN_DIR/..',
     DESTINATION_ROOT = '$MAIN_DIR/Hammer',

internal/essential.scons

@@ -12,6 +12,12 @@ env.Append(
     CPPPATH = [
         '$CHROME_SRC_DIR',
     ],
+    CCFLAGS = [
+        '$CHROMIUM_CC_OPT_FLAGS',
+    ],
+    LINKFLAGS = [
+        '$CHROMIUM_LINK_OPT_FLAGS',
+    ],
 )
 
 if env['PLATFORM'] == 'win32':

internal/release_defaults.scons

@@ -21,15 +21,21 @@ env.Append(
 )
 
 if env.Bit('windows'):
+  env.Replace(
+      CHROMIUM_CC_OPT_FLAGS = [
+          '/O2',                # VCCLCompilerTool.Optimization="2"
+      ],
+      CHROMIUM_LINK_OPT_FLAGS = [
+          '/OPT:REF',           # VCLinkerTool.OptimizeReferences="2"
+          '/OPT:NOICF',         # VCLinkerTool.EnableCOMDATFolding="2"
+          '/OPT:NOWIN98',       # VCLinkerTool.OptimizeForWindows98="1"
+      ],
+  ),
   env.Append(
       CCFLAGS = [
-          '/O2',                # VCCLCompilerTool.Optimization="2"
           '/GF',                # VCCLCompilerTool.StringPooling="true"
       ],
       LINKFLAGS = [
           '/INCREMENTAL:NO',    # VCLinkerTool.LinkIncremental="1"
-          '/OPT:REF',           # VCLinkerTool.OptimizeReferences="2"
-          '/OPT:ICF',           # VCLinkerTool.EnableCOMDATFolding="2"
-          '/OPT:NOWIN98',       # VCLinkerTool.OptimizeForWindows98="1"
       ],
   )

internal/release_impl_dom_stats.scons

@@ -18,14 +18,18 @@ env.Append(
 )
 
 if env['PLATFORM'] == 'win32':
+  env.Replace(
+      CHROMIUM_LINK_OPT_FLAGS = [
+          '/OPT:REF',           # VCLinkerTool.OptimizeReferences="2"
+          '/OPT:NOICF',         # VCLinkerTool.EnableCOMDATFolding="2"
+          '/OPT:NOWIN98',       # VCLinkerTool.OptimizeForWindows98="1"
+      ],
+  ),
   env.Append(
       CCFLAGS = [
           '/Oy-',
       ]
       LINKFLAGS = [
           '/INCREMENTAL:NO',    # VCLinkerTool.LinkIncremental="1"
-          '/OPT:REF',           # VCLinkerTool.OptimizeReferences="2"
-          '/OPT:ICF',           # VCLinkerTool.EnableCOMDATFolding="2"
-          '/OPT:NOWIN98',       # VCLinkerTool.OptimizeForWindows98="1"
       ],
   )

internal/release_impl_official.scons

@@ -11,12 +11,16 @@ Import("env")
 env.ApplySConscript(['release_defaults.scons'])
 
 if env.Bit('windows'):
+  env.Replace(
+      CHROMIUM_CC_OPT_FLAGS = [
+          '/Ox',    # VCCLCompilerTool.Optimization="3"
+      ],
+  ),
   env.Append(
       ARFLAGS = [
           '/ltcg',
       ],
       CCFLAGS = [
-          '/Ox',    # VCCLCompilerTool.Optimization="3"
           '/Ob2',   # VCCLCompilerTool.InlineFunctionExpansion="2"
           '/Oi',    # VCCLCompilerTool.EnableIntrinsicFunctions="true"
           '/Os',    # VCCLCompilerTool.FavorSizeOrSpeed="2"

internal/release_impl_purify.scons

@@ -17,13 +17,17 @@ env.Append(
 )
 
 if env.Bit('windows'):
+  env.Replace(
+      CHROMIUM_CC_OPT_FLAGS = [
+          '/Od',            # VCCLCompilerTool.Optimization="0"
+      ],
+      CHROMIUM_LINK_OPT_FLAGS = [
+          '/OPT:NOICF',     # VCLinkerTool.EnableCOMDATFolding="2"
+      ],
+  ),
   env.Append(
       CCFLAGS = [
-          '/Od',            # VCCLCompilerTool.Optimization="0"
           '/MT',            # VCCLCompilerTool.RuntimeLibrary="0"
           '/GS-',           # VCCLCompilerTool.BufferSecurityCheck="false"
-      ]
-      LINKFLAGS = [
-          '/OPT:ICF',       # VCLinkerTool.EnableCOMDATFolding="1"
       ],
   )