Add support for building Xcode project files from GYP files

Removed the current Xcode project file.

Fixed a few places where the C++ compiler supplied with Xcode produced warnings.
Review URL: http://codereview.chromium.org/7134016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

build/README.txt

@@ -9,23 +9,47 @@ the V8 project do the following:
 
 $ svn co http://gyp.googlecode.com/svn/trunk build/gyp
 
+Note for the command lines below that Debug is the default configuration,
+so specifying that on the command lines is not required.
+
+
 To generate Makefiles and build 32-bit version on Linux:
 --------------------------------------------------------
 
-$ GYP_DEFINES=target_arch=ia32 build/gyp_v8
-$ make
+$ build/gyp_v8 -D target_arch=ia32
+$ make BUILDTYPE=Debug
+$ out/Debug/shell
+$ make BUILDTYPE=Release
+$ out/Release/shell
 
 To generate Makefiles and build 64-bit version on Linux:
 --------------------------------------------------------
 
-$ GYP_DEFINES=target_arch=x64 build/gyp_v8
-$ make
+$ build/gyp_v8 -D target_arch=x64
+$ make BUILDTYPE=Debug
+$ out/Debug/shell
+$ make BUILDTYPE=Release
+$ out/Release/shell
 
 To generate Makefiles and build for the arm simulator on Linux:
 ---------------------------------------------------------------
 
-$ build/gyp_v8 -I build/arm.gypi
-$ make
+$ build/gyp_v8 -I build/armu.gypi
+$ make BUILDTYPE=Debug
+$ out/Debug/shell
+$ make BUILDTYPE=Release
+$ out/Release/shell
+
+
+To generate Xcode project files on Mac OS:
+------------------------------------------
+
+$ build/gyp_v8 -D target_arch=ia32
+$ xcodebuild -project build/all.xcodeproj -configuration Debug
+$ samples/build/Debug/shell
+$ xcodebuild -project build/all.xcodeproj -configuration Release
+$ samples/build/Release/shell
+
 
 To generate Visual Studio solution and project files on Windows:
 ----------------------------------------------------------------

build/common.gypi

@@ -139,6 +139,45 @@
           },
         },
       },
-    }]
+    }],  # OS=="win"
+    ['OS=="mac"', {
+      'target_defaults': {
+        'xcode_settings': {
+          'ALWAYS_SEARCH_USER_PATHS': 'NO',
+          'GCC_C_LANGUAGE_STANDARD': 'ansi',        # -ansi
+          'GCC_CW_ASM_SYNTAX': 'NO',                # No -fasm-blocks
+          'GCC_DYNAMIC_NO_PIC': 'NO',               # No -mdynamic-no-pic
+                                                    # (Equivalent to -fPIC)
+          'GCC_ENABLE_CPP_EXCEPTIONS': 'NO',        # -fno-exceptions
+          'GCC_ENABLE_CPP_RTTI': 'NO',              # -fno-rtti
+          'GCC_ENABLE_PASCAL_STRINGS': 'NO',        # No -mpascal-strings
+          # GCC_INLINES_ARE_PRIVATE_EXTERN maps to -fvisibility-inlines-hidden
+          'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES',
+          'GCC_SYMBOLS_PRIVATE_EXTERN': 'YES',      # -fvisibility=hidden
+          'GCC_THREADSAFE_STATICS': 'NO',           # -fno-threadsafe-statics
+          'GCC_TREAT_WARNINGS_AS_ERRORS': 'YES',    # -Werror
+          'GCC_VERSION': '4.2',
+          'GCC_WARN_ABOUT_MISSING_NEWLINE': 'YES',  # -Wnewline-eof
+          'MACOSX_DEPLOYMENT_TARGET': '10.4',       # -mmacosx-version-min=10.4
+          'PREBINDING': 'NO',                       # No -Wl,-prebind
+          'USE_HEADERMAP': 'NO',
+          'OTHER_CFLAGS': [
+            '-fno-strict-aliasing',
+          ],
+          'WARNING_CFLAGS': [
+            '-Wall',
+            '-Wendif-labels',
+            '-W',
+            '-Wno-unused-parameter',
+            '-Wnon-virtual-dtor',
+          ],
+        },
+        'target_conditions': [
+          ['_type!="static_library"', {
+            'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
+          }],
+        ],  # target_conditions
+      },  # target_defaults
+    }],  # OS=="mac"
   ],
 }

samples/process.cc

@@ -535,7 +535,7 @@ void ParseOptions(int argc,
                   string* file) {
   for (int i = 1; i < argc; i++) {
     string arg = argv[i];
-    int index = arg.find('=', 0);
+    size_t index = arg.find('=', 0);
     if (index == string::npos) {
       *file = arg;
     } else {

src/type-info.cc

@@ -407,7 +407,7 @@ void TypeFeedbackOracle::SetInfo(unsigned ast_id, Object* target) {
   MaybeObject* maybe_result = dictionary_->AtNumberPut(ast_id, target);
   USE(maybe_result);
 #ifdef DEBUG
-  Object* result;
+  Object* result = NULL;
   // Dictionary has been allocated with sufficient size for all elements.
   ASSERT(maybe_result->ToObject(&result));
   ASSERT(*dictionary_ == result);

tools/v8.xcodeproj/README.txt

+The Xcode project for V8 has been retired. If an Xcode project
+is needed for building on a Mac there is the option of using GYP to
+generate it. Please look in the build directory in the root of the
+V8 project. It contains the required infrastructure and a README.txt
+file explaining how to get started.
+
+Generating Xcode projects using GYP is how the Chromium
+project integrated V8 into the Mac build.
+
+The main build system for V8 is still SCons, see
+http://code.google.com/apis/v8/build.html for details.