Create separate build subdirectory for each build profile.

Author: bmcdonnell-ionx

mbed/mbed.py

@@ -2497,10 +2497,23 @@ def compile_(toolchain=None, target=None, profile=False, compile_library=False,
 
         build_path = build
 
+        def safe_append_profile_to_build_path(bp):
+            if profile:
+                if isinstance(profile, basestring):
+                    append_str = profile
+                else:
+                    append_str = profile[0]
+
+                if append_str:
+                    bp = os.path.join(bp, os.path.splitext(os.path.basename(append_str))[0].upper())
+
+            return bp
+
         if compile_library:
             # Compile as a library (current dir is default)
             if not build_path:
                 build_path = os.path.join(os.path.relpath(program.path, orig_path), program.build_dir, 'libraries', os.path.basename(orig_path), target.upper(), tchain.upper())
+                build_path = safe_append_profile_to_build_path(build_path)
 
             popen([python_cmd, '-u', os.path.join(tools_dir, 'build.py')]
                   + list(chain.from_iterable(zip(repeat('-D'), macros)))
@@ -2517,6 +2530,7 @@ def compile_(toolchain=None, target=None, profile=False, compile_library=False,
             # Compile as application (root is default)
             if not build_path:
                 build_path = os.path.join(os.path.relpath(program.path, orig_path), program.build_dir, target.upper(), tchain.upper())
+                build_path = safe_append_profile_to_build_path(build_path)
 
             popen([python_cmd, '-u', os.path.join(tools_dir, 'make.py')]
                   + list(chain.from_iterable(zip(repeat('-D'), macros)))