tf_fuzz: refactor includes to only include what is needed

* Refactor Makefile to automatically gather prerequisites.

* Change the includes (using include-what-you-need) so that files only
  include the specific headers they need. Many includes are also now
  inside the .hpp files instead of the .cpp files.

  This improves editor support: previously, external symbols in .hpp
  files would not be resolved by clangd due to .hpp files not having any
  imports.

Change-Id: Iece03f81c35aa43ac026aaeb49b87d2c4acf07cd
Signed-off-by: Nik Dewally <Nik.Dewally@arm.com>
diff --git a/tf_fuzz/tfz-cpp/Makefile b/tf_fuzz/tfz-cpp/Makefile
index 0e98dc6..488b675 100644
--- a/tf_fuzz/tfz-cpp/Makefile
+++ b/tf_fuzz/tfz-cpp/Makefile
@@ -1,60 +1,41 @@
-# Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+# Copyright (c) 2019-2024, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
-#
+
+CXX = g++
+INCLUDES = -I /usr/include -I . -I ./parser -I ./template -I ./assets -I ./calls -I ./boilerplate -I ./utility
+override CXXFLAGS += -std=gnu++11 -O0 -g $(INCLUDES)
+
+sources = $(wildcard assets/*.cpp) \
+		  $(wildcard boilerplate/*.cpp) \
+		  $(wildcard calls/*.cpp) \
+		  $(wildcard template/*.cpp) \
+		  $(wildcard utility/*.cpp) \
+		  $(wildcard *.cpp)
+
+objs    = $(sources:.cpp=.o)
+depends = $(sources:.cpp=.d)
+
+generated_sources  = parser/tf_fuzz_grammar.tab.cpp parser/tf_fuzz_grammar.lex.c
+generated_objs	   = parser/tf_fuzz_grammar.tab.o parser/tf_fuzz_grammar.lex.o
+generated_includes = parser/tf_fuzz_grammar.tab.hpp
 
 .PHONY: default
-default: tfz;
+default: $(generated_includes) tfz;
 
-edit:
-	$(EDITOR) template/template_line.hpp \
-	template/sst_template_line.hpp template/crypto_template_line.hpp \
-	template/secure_template_line.hpp calls/psa_call.hpp calls/sst_call.hpp \
-	calls/crypto_call.hpp calls/security_call.hpp assets/psa_asset.hpp \
-	assets/sst_asset.hpp assets/crypto_asset.hpp utility/data_blocks.hpp \
-	utility/variables.hpp utility/gibberish.hpp utility/randomization.hpp \
-	utility/find_or_create_asset.hpp utility/string_ops.hpp \
-	utility/compute.hpp boilerplate/boilerplate.hpp \
-	utility/find_or_create_asset.hpp class_forwards.hpp tf_fuzz.hpp \
-	parser/tf_fuzz_grammar.l parser/tf_fuzz_grammar.y \
-	template/template_line.cpp \
-	template/sst_template_line.cpp template/crypto_template_line.cpp \
-	template/secure_template_line.cpp calls/psa_call.cpp calls/sst_call.cpp \
-	calls/crypto_call.cpp calls/security_call.cpp assets/psa_asset.cpp \
-	assets/sst_asset.cpp assets/crypto_asset.cpp utility/data_blocks.cpp \
-	utility/gibberish.cpp utility/randomization.cpp utility/string_ops.cpp \
-	utility/compute.cpp \
-	boilerplate/boilerplate.cpp tf_fuzz.cpp \
-	tests/example_template tests/sstSets tests/sstReads \
-	lib/tfm_boilerplate.txt boilerplate/boilerplate.hpp \
-	Makefile README assets/README \
-	boilerplate/README calls/README demo/README lib/README parser/README \
-	template/README tests/README regression/README utility/README \
-	visualStudio/README &
+# Automatically gather prerequisites
+# [GNU Make manual, section 4.14]
 
-edit3:
-	$(EDITOR) template/template_line.hpp \
-	template/sst_template_line.hpp template/crypto_template_line.hpp \
-	template/secure_template_line.hpp calls/psa_call.hpp calls/sst_call.hpp \
-	calls/crypto_call.hpp calls/security_call.hpp assets/psa_asset.hpp \
-	assets/sst_asset.hpp assets/crypto_asset.hpp  utility/data_blocks.hpp \
-	utility/variables.hpp utility/gibberish.hpp utility/randomization.hpp \
-	utility/find_or_create_asset.hpp utility/string_ops.hpp \
-	utility/compute.hpp boilerplate/boilerplate.hpp \
-	utility/find_or_create_asset.hpp class_forwards.hpp tf_fuzz.hpp &
-	$(EDITOR) parser/tf_fuzz_grammar.l parser/tf_fuzz_grammar.y \
-	template/template_line.cpp \
-	template/sst_template_line.cpp template/crypto_template_line.cpp \
-	template/secure_template_line.cpp calls/psa_call.cpp calls/sst_call.cpp \
-	calls/crypto_call.cpp calls/security_call.cpp assets/psa_asset.cpp \
-	assets/sst_asset.cpp assets/crypto_asset.cpp utility/data_blocks.cpp \
-	utility/variables.cpp utility/gibberish.cpp utility/randomization.cpp \
-	utility/string_ops.cpp utility/compute.cpp boilerplate/boilerplate.cpp \
-	tf_fuzz.cpp &
-	$(EDITOR) tests/example_template Makefile tests/sstSets tests/sstReads \
-	lib/tfm_boilerplate.txt boilerplate/boilerplate.hpp &
+include $(depends)
 
-includes = -I . -I ./parser -I ./template -I ./assets -I ./calls -I ./boilerplate -I ./utility
+%.d: %.cpp $(generated_includes) $(generated_sources)
+	@set -e; rm -f $@; \
+	$(CXX) -M -MM $(CXXFLAGS) $< > $@.$$$$; \
+	sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
+	rm -f $@.$$$$
+
+tfz: $(generated_includes) $(generated_objs) $(objs) Makefile
+	$(CXX) $(CXXFLAGS) -o tfz $(generated_objs) $(objs)
 
 parser/tf_fuzz_grammar.tab.hpp:  parser/tf_fuzz_grammar.y class_forwards.hpp \
 boilerplate/boilerplate.hpp utility/gibberish.hpp utility/string_ops.hpp \
@@ -81,150 +62,19 @@
 parser/tf_fuzz_grammar.lex.c:  parser/tf_fuzz_grammar.l \
 parser/tf_fuzz_grammar.tab.hpp Makefile
 	lex --outfile=parser/tf_fuzz_grammar.lex.c parser/tf_fuzz_grammar.l
+
 parser/tf_fuzz_grammar.lex.o:  parser/tf_fuzz_grammar.lex.c Makefile
-	g++ -std=gnu++11 -O0 -g -c -I /usr/include $(includes) -o parser/tf_fuzz_grammar.lex.o \
+	$(CXX) $(CXXFLAGS) -c -o $@ \
 	parser/tf_fuzz_grammar.lex.c
 
 parser/tf_fuzz_grammar.tab.o:  parser/tf_fuzz_grammar.lex.o \
 parser/tf_fuzz_grammar.tab.cpp parser/tf_fuzz_grammar.tab.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c -I /usr/include $(includes) -o \
-	parser/tf_fuzz_grammar.tab.o parser/tf_fuzz_grammar.tab.cpp
+	$(CXX) $(CXXFLAGS) -c -o $@ \
+	parser/tf_fuzz_grammar.tab.cpp
 
-utility/data_blocks.o:  utility/data_blocks.hpp utility/data_blocks.cpp  Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o utility/data_blocks.o \
-	utility/data_blocks.cpp
-
-utility/variables.o:  utility/find_or_create_asset.hpp \
-utility/variables.hpp utility/variables.cpp  Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o utility/variables.o \
-	utility/variables.cpp
-
-template/template_line.o:  utility/randomization.hpp template/template_line.cpp \
-class_forwards.hpp boilerplate/boilerplate.hpp tf_fuzz.hpp calls/psa_call.hpp \
-assets/psa_asset.hpp utility/data_blocks.hpp template/template_line.hpp \
-assets/sst_asset.hpp assets/crypto_asset.hpp  Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o template/template_line.o \
-	template/template_line.cpp
-
-template/sst_template_line.o:  template/sst_template_line.cpp class_forwards.hpp \
-boilerplate/boilerplate.hpp tf_fuzz.hpp calls/psa_call.hpp assets/psa_asset.hpp \
-utility/data_blocks.hpp template/template_line.hpp template/sst_template_line.hpp \
-assets/sst_asset.hpp assets/crypto_asset.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o template/sst_template_line.o \
-	template/sst_template_line.cpp
-
-template/crypto_template_line.o:  template/crypto_template_line.cpp \
-class_forwards.hpp boilerplate/boilerplate.hpp tf_fuzz.hpp calls/psa_call.hpp \
-assets/psa_asset.hpp utility/data_blocks.hpp template/template_line.hpp \
-assets/sst_asset.hpp assets/crypto_asset.hpp template/crypto_template_line.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o template/crypto_template_line.o \
-	template/crypto_template_line.cpp
-
-template/secure_template_line.o:  utility/randomization.hpp class_forwards.hpp \
-boilerplate/boilerplate.hpp tf_fuzz.hpp calls/psa_call.hpp \
-assets/psa_asset.hpp utility/data_blocks.hpp template/secure_template_line.hpp \
-assets/sst_asset.hpp assets/crypto_asset.hpp  Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o template/secure_template_line.o \
-	template/secure_template_line.cpp
-
-assets/psa_asset.o:  assets/psa_asset.cpp class_forwards.hpp \
-boilerplate/boilerplate.hpp tf_fuzz.hpp utility/data_blocks.hpp calls/psa_call.hpp \
-assets/psa_asset.hpp template/template_line.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o assets/psa_asset.o \
-	assets/psa_asset.cpp
-
-assets/sst_asset.o:  assets/sst_asset.cpp class_forwards.hpp \
-boilerplate/boilerplate.hpp utility/data_blocks.hpp tf_fuzz.hpp calls/psa_call.hpp \
-assets/psa_asset.hpp template/template_line.hpp assets/sst_asset.hpp  Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o assets/sst_asset.o \
-	assets/sst_asset.cpp
-
-assets/crypto_asset.o:  utility/randomization.hpp assets/crypto_asset.cpp \
-class_forwards.hpp boilerplate/boilerplate.hpp tf_fuzz.hpp utility/data_blocks.hpp \
-calls/psa_call.hpp assets/psa_asset.hpp assets/crypto_asset.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o assets/crypto_asset.o \
-	assets/crypto_asset.cpp
-
-calls/psa_call.o:  calls/psa_call.cpp class_forwards.hpp \
-boilerplate/boilerplate.hpp utility/data_blocks.hpp utility/variables.hpp tf_fuzz.hpp \
-calls/psa_call.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o calls/psa_call.o calls/psa_call.cpp
-
-calls/sst_call.o:  calls/sst_call.cpp class_forwards.hpp \
-boilerplate/boilerplate.hpp tf_fuzz.hpp calls/psa_call.hpp assets/psa_asset.hpp \
-template/template_line.hpp utility/data_blocks.hpp utility/variables.hpp \
-calls/sst_call.hpp assets/sst_asset.hpp assets/crypto_asset.hpp utility/string_ops.hpp \
-Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o calls/sst_call.o \
-	calls/sst_call.cpp
-
-calls/crypto_call.o:  utility/randomization.hpp calls/crypto_call.cpp \
-class_forwards.hpp boilerplate/boilerplate.hpp utility/string_ops.hpp \
-tf_fuzz.hpp calls/psa_call.hpp utility/data_blocks.hpp utility/variables.hpp \
-assets/psa_asset.hpp template/template_line.hpp \
-calls/crypto_call.hpp assets/sst_asset.hpp assets/crypto_asset.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o calls/crypto_call.o \
-	calls/crypto_call.cpp
-
-calls/security_call.o:  utility/randomization.hpp calls/security_call.hpp \
-calls/security_call.cpp class_forwards.hpp boilerplate/boilerplate.hpp \
-utility/string_ops.hpp utility/data_blocks.hpp utility/variables.hpp tf_fuzz.hpp \
-calls/psa_call.hpp assets/psa_asset.hpp template/template_line.hpp \
-calls/security_call.hpp assets/sst_asset.hpp \
-Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o calls/security_call.o \
-	calls/security_call.cpp
-
-boilerplate/boilerplate.o:  boilerplate/boilerplate.cpp class_forwards.hpp \
-boilerplate/boilerplate.hpp tf_fuzz.hpp calls/psa_call.hpp assets/psa_asset.hpp \
-template/template_line.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o boilerplate/boilerplate.o \
-	boilerplate/boilerplate.cpp
-
-utility/gibberish.o:  utility/gibberish.cpp class_forwards.hpp \
-utility/gibberish.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o utility/gibberish.o \
-	utility/gibberish.cpp
-
-utility/string_ops.o:  utility/string_ops.cpp utility/string_ops.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o utility/string_ops.o \
-	utility/string_ops.cpp
-
-utility/randomization.o:  utility/randomization.cpp utility/randomization.hpp \
-Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o utility/randomization.o \
-	utility/randomization.cpp
-
-utility/compute.o:  utility/compute.cpp utility/compute.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o utility/compute.o \
-	utility/compute.cpp
-
-tf_fuzz.o:  tf_fuzz.cpp class_forwards.hpp boilerplate/boilerplate.hpp tf_fuzz.hpp \
-calls/psa_call.hpp assets/psa_asset.hpp utility/data_blocks.hpp utility/variables.hpp \
-template/template_line.hpp parser/tf_fuzz_grammar.tab.hpp Makefile
-	g++ -Wall -std=c++11 -O0 -g -c $(includes) -o tf_fuzz.o tf_fuzz.cpp
-
-tfz:  parser/tf_fuzz_grammar.lex.o parser/tf_fuzz_grammar.tab.o \
-template/secure_template_line.o template/template_line.o \
-template/sst_template_line.o template/crypto_template_line.o utility/data_blocks.o \
-utility/variables.o assets/psa_asset.o assets/sst_asset.o assets/crypto_asset.o \
-utility/gibberish.o utility/string_ops.o calls/psa_call.o calls/sst_call.o \
-calls/crypto_call.o utility/randomization.o utility/compute.o boilerplate/boilerplate.o \
-calls/security_call.o tf_fuzz.o \
-Makefile
-	g++ -Wall -std=c++11 -O0 -g -o tfz parser/tf_fuzz_grammar.lex.o \
-	parser/tf_fuzz_grammar.tab.o template/secure_template_line.o \
-	template/template_line.o template/sst_template_line.o utility/data_blocks.o \
-	utility/variables.o template/crypto_template_line.o assets/psa_asset.o \
-	assets/sst_asset.o assets/crypto_asset.o utility/gibberish.o \
-	utility/string_ops.o utility/randomization.o utility/compute.o \
-	calls/psa_call.o calls/sst_call.o calls/crypto_call.o calls/security_call.o \
-	boilerplate/boilerplate.o tf_fuzz.o
-
+.PHONY: clean
 clean:
-	rm -f ./*.o parser/*.o assets/*.o calls/*.o template/*.o utility/*.o \
-	boilerplate/*.o utility/gibberish.o tfz tfz.exe \
-	parser/tf_fuzz_grammar.lex.* parser/tf_fuzz_grammar.tab.* \
+	rm -f tfz *.d **/*.d *.d* **/*.d* $(objs) $(generated_objs) $(generated_includes) $(generated_sources)\
 	parser/tf_fuzz_grammar.output
 	rm -f `find regression -name "stdout_stderr"`
 	rm -f `find regression -name "test.c"`