TARGET=bruiser
LLVM_CONF?=llvm-config
PY_CONF?=python3-config
LIB_LUA=./lua-5.3.4/src/liblua.a
FT_WASM_SO=./autogen/wasm/ft/autowasm.so
FT_WASM_A=./autogen/wasm/ft/autowasm.a
FT_WASM_A_DBG=./autogen/wasm/ft/autowasm.adbg
FT_WASM_A_COV=./autogen/wasm/ft/autowasm.acov
LTG_WASM_SO=./autogen/wasm/ltg/wasm_tables.so
LTG_WASM_A=./autogen/wasm/ltg/wasm_tables.a
LTG_WASM_A_DBG=./autogen/wasm/ltg/wasm_tables.adbg
LTG_WASM_A_COV=./autogen/wasm/ltg/wasm_tables.acov
SHELL=bash
SHELL?=bash
CC=clang
CC?=clang
ifdef OS
CC_FLAGS= $(shell $(PY_CONF) --includes)
else
CC_FLAGS=-fpic $(shell $(PY_CONF) --includes)
endif
CXX=clang++
CXX?=clang++
ifdef OS
CXX_FLAGS= -I/usr/include $(shell $(PY_CONF) --includes)
else
CXX_FLAGS=-fpic -I/usr/include $(shell $(PY_CONF) --includes)
endif
CXX_EXTRA?=
CTAGS_I_PATH?=./
LD_FLAGS=-v
EXTRA_LD_FLAGS?=
ADD_SANITIZERS_CC= -g -fsanitize=address -fno-omit-frame-pointer
ADD_SANITIZERS_LD= -g -fsanitize=address
MEM_SANITIZERS_CC= -g -fsanitize=memory -fno-omit-frame-pointer
MEM_SANITIZERS_LD= -g -fsanitize=memory
UB_SANITIZERS_CC= -g -fsanitize=undefined -fno-omit-frame-pointer
UB_SANITIZERS_LD= -g -fsanitize=undefined
COV_CXX= -fprofile-instr-generate -fcoverage-mapping
COV_LD= -fprofile-instr-generate
# BUILD_MODES are=RELEASE(default), DEBUG,ADDSAN,MEMSAN,UBSAN
BUILD_MODE?=RELEASE
OBJ_LIST:=$(patsubst %.cpp, %.o, $(wildcard *.cpp))
ASM_LIST:=$(patsubst %.cpp, %.dis, $(wildcard *.cpp))

LLVM_CXX_FLAGS=$(shell $(LLVM_CONF) --cxxflags)
LLVM_CXX_FLAGS+=-I$(shell $(LLVM_CONF) --src-root)/tools/clang/include\
 -I$(shell $(LLVM_CONF) --obj-root)/tools/clang/include\
 -stdlib=libstdc++ -std=c++17 -fexceptions
LLVM_LD_FLAGS=-Wl,--start-group -lclangAST -lclangAnalysis -lclangBasic\
 -lclangDriver -lclangEdit -lclangFrontend -lclangFrontendTool\
 -lclangLex -lclangParse -lclangSema -lclangEdit -lclangASTMatchers\
 -lclangRewrite -lclangRewriteFrontend -lclangStaticAnalyzerFrontend\
 -lclangStaticAnalyzerCheckers -lclangStaticAnalyzerCore\
 -lclangSerialization -lclangToolingCore -lclangTooling -lstdc++\
 -lLLVMRuntimeDyld -lm -Wl,--end-group
LLVM_LD_FLAGS+=$(shell $(LLVM_CONF) --ldflags --libs --system-libs)

CXX_FLAGS+=$(LLVM_CXX_FLAGS)
LD_FLAGS+=$(LLVM_LD_FLAGS)

#MAKEFLAGS+=--warn-undefined-variables
ifeq ($(BUILD_MODE), ADDSAN)
ifeq ($(CXX), g++)
$(error This build mode is only useable with clang++.)
endif
CXX_EXTRA+=$(ADD_SANITIZERS_CC)
EXTRA_LD_FLAGS+=$(ADD_SANITIZERS_LD)
endif

ifeq ($(BUILD_MODE), MEMSAN)
ifeq ($(CXX), g++)
$(error This build mode is only useable with clang++.)
endif
CXX_EXTRA+=$(MEM_SANITIZERS_CC)
EXTRA_LD_FLAGS+=$(MEM_SANITIZERS_LD)
endif

ifeq ($(BUILD_MODE), UBSAN)
ifeq ($(CXX), g++)
$(error This build mode is only useable with clang++.)
endif
CXX_EXTRA+=$(UB_SANITIZERS_CC)
EXTRA_LD_FLAGS+=$(UB_SANITIZERS_LD)
endif

SRCS:=$(wildcard *.cpp)
C_SRCS:=$(wildcard *.c)
CXX_FLAGS+=$(CXX_EXTRA)
EXTRA_LD_FLAGS+=-lffi -lcapstone -lkeystone -L./lua-5.3.4/src $(shell $(PY_CONF) --embed --ldflags)
LD_FLAGS+=$(EXTRA_LD_FLAGS)
TBG_OBJLIST_INC_WASM=$(patsubst ./autogen/wasm/ltg/%.c, ./autogen/wasm/ltg/%.o, $(wildcard ./autogen/wasm/ltg/*.c))
TBG_OBJLIST_DBG_INC_WASM=$(patsubst ./autogen/wasm/ltg/%.c, ./autogen/wasm/ltg/%.odbg, $(wildcard ./autogen/wasm/ltg/*.c))
TBG_OBJLIST_COV_INC_WASM=$(patsubst ./autogen/wasm/ltg/%.c, ./autogen/wasm/ltg/%.ocov, $(wildcard ./autogen/wasm/ltg/*.c))

.DEFAULT:all

.PHONY:all clean help ASM SO TAGS CODE_GEN CODE_GEN_DBG CODE_GEN_COV

all:exe

everything:$(TARGET) A ASM SO $(TARGET)-dbg TAGS $(TARGET)-cov

depend:.depend
dependc:.dependc

.depend:$(SRCS)
	rm -rf .depend
	$(CXX) -MM $(CXX_FLAGS) $^ > ./.depend
	echo $(patsubst %.o:, %.odbg:, $(shell $(CXX) -MM $(CXX_FLAGS) $^)) | sed -r 's/[A-Za-z0-9\_]+\.odbg/\n&/g' >> ./.depend
	echo $(patsubst %.o:, %.ocov:, $(shell $(CXX) -MM $(CXX_FLAGS) $^)) | sed -r 's/[A-Za-z0-9\_]+\.ocov/\n&/g' >> ./.depend

.dependc:$(C_SRCS)
	rm -rf .dependc
	$(CC) -MM $(CC_FLAGS) $^ > ./.dependc
	echo $(patsubst %.o:, %.odbg:, $(shell $(CC) -MM $(CC_FLAGS) $^)) | sed -r 's/[A-Za-z0-9\_]+\.odbg/\n&/g' >> ./.dependc
	echo $(patsubst %.o:, %.ocov:, $(shell $(CC) -MM $(CC_FLAGS) $^)) | sed -r 's/[A-Za-z0-9\_]+\.ocov/\n&/g' >> ./.dependc

-include ./.depend
-include ./.dependc

.c.o:
	$(CC) $(CC_FLAGS) -c $< -o $@

%.ocov:%.c
	$(CC) $(CC_FLAGS) $(COV_CXX) -c $< -o $@

%.odbg:%.c
	$(CC) $(CC_FLAGS) -g -c $< -o $@

.cpp.o:
	$(CXX) $(CXX_FLAGS) -c $< -o $@

#../mutator_aux.o:../mutator_aux.cpp
	#$(CXX) $(CXX_FLAGS) -c $< -o $@

linenoise.o: ./linenoise/linenoise.c
	$(CC) $(CC_FLAGS) linenoise/linenoise.c -c -o linenoise.o

linenoise.odbg: ./linenoise/linenoise.c
	$(CC) $(CC_FLAGS) linenoise/linenoise.c -g -c -o linenoise.odbg

linenoise.ocov: ./linenoise/linenoise.c
	$(CC) $(CC_FLAGS) $(COV_CXX) linenoise/linenoise.c -c -o linenoise.ocov

#./autogen/wasm/ft/wasm.xml:
	#if [[ ls -l ./autogen/wasm/ft/ | wc -l == 3 ]];then ./autogen/wasm/ft.sh;else :;fi
	#./autogen/wasm/ft.sh

#./autogen/wasm/ltg/wasm.xml:
	#if [[ ls -l ./autogen/wasm/ltg/ | wc -l == 2 ]];then ./autogen/wasm/ltg.sh;else :;fi
	#./autogen/wasm/ltg.sh

./luatablegen/%.o:./luatablegen/%.c
	$(MAKE) -C luatablegen

$(LIB_LUA):
	$(MAKE) -C lua-5.3.4/src linux

CODE_GEN: $(FT_WASM_A) $(LTG_WASM_A) $(FT_WASM_SO) $(LTG_WASM_SO)

CODE_GEN_DBG: $(FT_WASM_A_DBG) $(LTG_WASM_A_DBG)

CODE_GEN_COV: $(FT_WASM_A_COV) $(LTG_WASM_A_COV)

define check_ft_codegen
	- $(shell if [[ $$(ls -l ./autogen/wasm/ft/ | wc -l) == 3 ]];then ./autogen/wasm/ft.sh;else :;fi)
endef
define check_ltg_codegen
	- $(shell if [[ $$(ls -l ./autogen/wasm/ltg/ | wc -l) == 2 ]];then ./autogen/wasm/ltg.sh;else :;fi)
endef

$(FT_WASM_SO): ./autogen/wasm/wasm.xml
	$(check_ft_codegen)
	$(MAKE) -C ./autogen/wasm/ft SO

$(FT_WASM_A): ./autogen/wasm/wasm.xml
	$(check_ft_codegen)
	$(MAKE) -C ./autogen/wasm/ft A

$(FT_WASM_A_DBG): ./autogen/wasm/wasm.xml
	$(check_ft_codegen)
	$(MAKE) -C ./autogen/wasm/ft ADBG

$(FT_WASM_A_COV): ./autogen/wasm/wasm.xml
	$(check_ft_codegen)
	$(MAKE) -C ./autogen/wasm/ft ACOV

$(LTG_WASM_SO): ./autogen/wasm/wasm.xml
	$(check_ltg_codegen)
	$(MAKE) -C ./autogen/wasm/ltg SO

$(LTG_WASM_A): ./autogen/wasm/wasm.xml
	$(check_ltg_codegen)
	$(MAKE) -C ./autogen/wasm/ltg A

$(LTG_WASM_A_DBG): ./autogen/wasm/wasm.xml
	$(check_ltg_codegen)
	$(MAKE) -C ./autogen/wasm/ltg ADBG

$(LTG_WASM_A_COV): ./autogen/wasm/wasm.xml
	$(check_ltg_codegen)
	$(MAKE) -C ./autogen/wasm/ltg ACOV

%.odbg:%.cpp
	$(CXX) $(CXX_FLAGS) -g -c $< -o $@

%.ocov:%.cpp
	$(CXX) $(CXX_FLAGS) $(COV_CXX) -c $< -o $@

exe: CODE_GEN $(TARGET)
exe-dbg: CODE_GEN_DBG $(TARGET)-dbg
exe-cov: CODE_GEN_COV $(TARGET)-cov

$(TARGET): $(TARGET).o $(FT_WASM_A) $(LTG_WASM_A) ../m0/mutator_aux.o ../tinyxml2/tinyxml2.o linenoise.o CompletionHints.o mutagen.o ORCmutation.o bruiserffi.o asmrewriter.o bruisercapstone.o ramdump.o ffs.o $(LIB_LUA)
	$(CXX) $^ $(LD_FLAGS) -o $@

# currently broken since it needs a static libpython
$(TARGET)-static: $(FT_WASM_A) $(LTG_WASM_A) $(TARGET).o ../m0/mutator_aux.o ../tinyxml2/tinyxml2.o linenoise.o CompletionHints.o mutagen.o ORCmutation.o bruiserffi.o asmrewriter.o bruisercapstone.o ramdump.o ffs.o $(LIB_LUA)
	$(CXX) $^ $(LD_FLAGS) -static -o $@

$(TARGET)-dbg: $(TARGET).odbg $(FT_WASM_A_DBG) $(LTG_WASM_A_DBG) ../m0/mutator_aux.odbg ../tinyxml2/tinyxml2.odbg linenoise.odbg CompletionHints.odbg mutagen.o ORCmutation.o bruiserffi.odbg asmrewriter.odbg bruisercapstone.odbg ramdump.odbg ffs.odbg $(LIB_LUA)
	$(CXX) $^ $(LD_FLAGS) -g -o $@

$(TARGET)-cov: $(TARGET).ocov $(FT_WASM_A_COV) $(LTG_WASM_A_COV) ../m0/mutator_aux.ocov ../tinyxml2/tinyxml2.ocov linenoise.ocov CompletionHints.ocov mutagen.o ORCmutation.o bruiserffi.ocov asmrewriter.ocov bruisercapstone.ocov ramdump.ocov ffs.ocov $(LIB_LUA)
	$(CXX) $^ $(LD_FLAGS) $(COV_LD) -o $@

cov:
	@llvm-profdata merge -sparse ./default.profraw -o ./default.profdata
	@llvm-cov show $(TARGET)-cov -instr-profile=default.profdata

covrep:
	@llvm-profdata merge -sparse ./default.profraw -o ./default.profdata
	@llvm-cov report $(TARGET)-cov -instr-profile=default.profdata

ASM:$(ASM_LIST)

SO:$(TARGET).so

A:$(TARGET).a

TAGS:tags

tags:$(SRCS)
	$(shell $(CXX) -c $(shell $(PY_CONF) --includes) $(shell $(LLVM_CONF) --cxxflags) -I$(shell $(LLVM_CONF)\
		--src-root)/tools/clang/include -I$(shell $(LLVM_CONF) --obj-root)/tools/clang/include -I $(CTAGS_I_PATH) -M $(SRCS)|\
		sed -e 's/[\\ ]/\n/g'|sed -e '/^$$/d' -e '/\.o:[ \t]*$$/d'|\
		ctags -L - --c++-kinds=+p --fields=+iaS --extra=+q)

%.dis: %.o
	objdump -r -d -M intel -S $< > $@

#FIXME
$(TARGET).so: $(TARGET).o ../m0/mutator_aux.o ../tinyxml2/tinyxml2.o linenoise.o CompletionHints.o mutagen.o ORCmutation.o bruiserffi.o asmrewriter.o bruisercapstone.o ramdump.o ffs.o $(LIB_LUA) $(TBG_OBJLIST_INC)
	$(CXX) $^ $(LD_FLAGS) -shared -o $@

#FIXME
$(TARGET).a: $(TARGET).o ../m0/mutator_aux.o ../tinyxml2/tinyxml2.o linenoise.o CompletionHints.o mutagen.o ORCmutation.o bruiserffi.o asmrewriter.o bruisercapstone.o ramdump.o ffs.o $(LIB_LUA) $(TBG_OBJLIST_INC)
	ar rcs $(TARGET).a $(TARGET).o

runcov: $(TARGET)-cov
	$(TARGET)-cov --lua ./lua-scripts/regtest.lua

valgrind: $(TARGET)
	- valgrind --leak-check=yes $(TARGET) --lua ./lua-scripts/regtest.lua

debug: $(TARGET)-dbg
	gdb --args --lua ./lua-scripts/wasmtest.lua $(TARGET)-dbg

clean:
	rm -f *.o *.dis *.odbg *.ocov *~ $(TARGET) $(TARGET).so $(TARGET)-static $(TARGET)-dbg $(TARGET).a $(TARGET)-cov

deepclean: clean
	- rm tags
	- rm .depend
	$(MAKE) -C lua-5.3.4 clean
	$(MAKE) -C ./autogen/wasm/ft clean
	$(MAKE) -C ./autogen/wasm/ltg clean

help:
	@echo "--all is the default target, runs $(TARGET) target"
	@echo "--everything will build everything"
	@echo "--SO will generate the so"
	@echo "--ASM will generate assembly files"
	@echo "--TAGS will generate tags file"
	@echo "--$(TARGET) builds the dynamically-linked executable"
	@echo "--$(TARGET)-dbg will generate the debug build. BUILD_MODE should be set to DEBUG to work"
	@echo "--$(TARGET)-static will statically link the executable to the libraries"
	@echo "--$(TARGET)-cov is the coverage build"
	@echo "--cov will print the line coverage report"
	@echo "--covrep will print the coverage report"
	@echo "--A will build the static library"
	@echo "--TAGS will build the tags file"
	@echo "--clean"
	@echo "--deepclean will clean almost everything"