Added on-line defined macros to the build system

Added 3 macros defined by the on-line build system to the off-line build
system: MBED_BUILD_TIMESTAMP, MBED_USERNAME and __MBED__.

Author: Bogdan Marinescu

workspace_tools/settings.py

@@ -73,6 +73,9 @@
 
 BUILD_OPTIONS = []
 
+# mbed.org username
+MBED_ORG_USER = ""
+
 ##############################################################################
 # Test System Settings
 ##############################################################################

workspace_tools/toolchains/__init__.py

@@ -20,10 +20,11 @@
 from copy import copy
 from types import ListType
 from inspect import getmro
+from time import time
 
 from workspace_tools.utils import run_cmd, mkdir, rel_path, ToolException, split_path
 from workspace_tools.patch import patch
-from workspace_tools.settings import BUILD_OPTIONS
+from workspace_tools.settings import BUILD_OPTIONS, MBED_ORG_USER
 
 import workspace_tools.hooks as hooks
 import re
@@ -184,6 +185,7 @@ def __init__(self, target, options=None, notify=None, macros=None):
         self.has_config = False
 
         self.build_all = False
+        self.timestamp = time()
 
     def goanna_parse_line(self, line):
         if "analyze" in self.options:
@@ -203,6 +205,11 @@ def get_symbols(self):
             # Cortex CPU symbols
             if self.target.core in mbedToolchain.CORTEX_SYMBOLS:
                 self.symbols.extend(mbedToolchain.CORTEX_SYMBOLS[self.target.core])
+
+            # Symbols defined by the on-line build.system
+            self.symbols.extend(['MBED_BUILD_TIMESTAMP=%s' % self.timestamp, '__MBED__=1'])
+            if MBED_ORG_USER:
+                self.symbols.append('MBED_USERNAME=' + MBED_ORG_USER)
 
         return self.symbols