fixes for A2

mostly include some things that should and remove some things that shouldn't have been included in the handout (yes this does hint at some places that need to be touched for A2)

tools/build.mk

@@ -99,7 +99,7 @@ $(BUILDDIR)/%.asm.o : %.asm $(MAKEFILE_LIST)
 # The standard target 'clean' removes the whole generated system, the object files, and the dependency files.
 clean::
 	rm -rf "$(BUILDDIR)"
-
+	rm -rf doc
 
 # Target issuing a nested call to make generating a fully optimized systems without assertions.
 %-$(OPTTAG):
@@ -120,6 +120,9 @@ clean::
 %-$(VERBOSETAG):
 	$(VERBOSE) $(MAKE) BUILDDIR="$(BUILDDIR)/$(VERBOSETAG)" ISODIR="$(ISODIR)/$(VERBOSETAG)" CXXFLAGS_OPT="-DVERBOSE" $*
 
+# Build the doxygen docs
+doc:
+	PROJECT_NAME=StuBS doxygen ../doxygen/doxy-sra.cfg
 
 # Documentation
 help::
@@ -134,7 +137,8 @@ help::
 		"To get a verbose make output, clear VERBOSE, e.g. \e[3mmake VERBOSE=\e[0m.\n" \
 		"The following targets are available (each target can be suffixed by \e[3m-noopt\e[0m\n" \
 		"and \e[3m-verbose\e[0m):\n\n" \
-		"	\e[3mall\e[0m      Builds $(PROJECT), generating an ELF binary\n\n"
+		"	\e[3mall\e[0m      Builds $(PROJECT), generating an ELF binary\n\n" \
+		"	\e[3mdoc\e[0m      Builds the documention (doc/html/index.html)\n" \
 
 
 # Print warnings, if appropriate
@@ -150,4 +154,4 @@ endif
 
 
 # Phony targets
-.PHONY: clean help
+.PHONY: clean doc help