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# Copyright (c) the Selfie Project authors. All rights reserved.
# Please see the AUTHORS file for details. Use of this source code is governed
# by a BSD license that can be found in the LICENSE file.

# Selfie is a project of the Computational Systems Group at the Department of
# Computer Sciences of the University of Salzburg in Austria. For further
# information and code please refer to:

# selfie.cs.uni-salzburg.at

# This is the Makefile of the selfie system.

# Compiler flags
CFLAGS := -Wall -Wextra -O3 -D'uint64_t=unsigned long'

# Bootstrap selfie.c into selfie executable
selfie: selfie.c
	$(CC) $(CFLAGS) $< -o $@

# 32-bit compiler flags
32-BIT-CFLAGS := -Wall -Wextra -Wno-builtin-declaration-mismatch -O3 -m32 -D'uint64_t=unsigned long'

# Bootstrap selfie.c into 32-bit selfie executable, requires 32-bit compiler support
selfie-32: selfie.c
	$(CC) $(32-BIT-CFLAGS) $< -o $@

# Compile *.c including selfie.c into RISC-U *.m executable
%.m: %.c selfie
	./selfie -c $< -o $@

# Compile *.c including selfie.c into RISC-U *.s assembly
%.s: %.c selfie
	./selfie -c $< -s $@

# Generate selfie library as selfie.h
selfie.h: selfie.c
	sed 's/main(/selfie_main(/' selfie.c > selfie.h

# Generate selfie library with gc interface as selfie-gc.h
selfie-gc.h: selfie.c
	sed 's/gc_init(uint64_t\* context) {/gc_init_deleted(uint64_t\* context) {/' selfie.c > selfie-gc-intermediate.h
	sed 's/allocate_memory(uint64_t\* context, uint64_t size) {/allocate_memory_deleted(uint64_t\* context, uint64_t size) {/' selfie-gc-intermediate.h > selfie-gc.h
	sed 's/mark_block(uint64_t\* context, uint64_t address) {/mark_block_deleted(uint64_t\* context, uint64_t address) {/' selfie-gc.h > selfie-gc-intermediate.h
	sed 's/sweep(uint64_t\* context) {/sweep_deleted(uint64_t\* context) {/' selfie-gc-intermediate.h > selfie-gc.h
	sed 's/allocate_context() {/allocate_context_deleted() {/' selfie-gc.h > selfie-gc-intermediate.h
	mv selfie-gc-intermediate.h selfie-gc.h

# Generate selfie library with gc interface as selfie-gc-nomain.h
selfie-gc-nomain.h: selfie-gc.h
	sed 's/main(/selfie_main(/' selfie-gc.h > selfie-gc-nomain.h

# Consider these targets as targets, not files
.PHONY: self self-self self-self-check 64-to-32-bit \
		whitespace quine escape debug replay \
		emu emu-emu emu-emu-emu emu-vmm-emu os-emu os-vmm-emu overhead \
		self-emu self-os-emu self-os-vmm-emu min mob \
		gib gclib giblib gclibtest boehmgc cache less

# Run less that only requires standard tools and is not too slow
less: self self-self self-self-check 64-to-32-bit \
		whitespace quine escape debug replay \
		emu emu-emu emu-vmm-emu os-emu os-vmm-emu \
		self-emu self-os-emu self-os-vmm-emu min mob \
		gib gclib giblib gclibtest boehmgc cache

# Self-compile selfie
self: selfie
	./selfie -c selfie.c

# Self-self-compile selfie
self-self: selfie
	./selfie -c selfie.c -m 3 -c selfie.c

# Self-self-compile selfie and check fixed point of self-compilation
self-self-check: selfie
	./selfie -c selfie.c -o selfie0.m -s selfie0.s -m 3 -c selfie.c -o selfie1.m -s selfie1.s
	diff -q selfie0.m selfie1.m
	diff -q selfie0.s selfie1.s

# Self-self-compile selfie from 64-bit system to 32-bit target and check fixed point of self-compilation
64-to-32-bit: selfie
	./selfie -m32 -c selfie.c -o selfie-64-2-32.m -s selfie-64-2-32.s -m 4 -c selfie.c -o selfie-64-2-32-2-32.m -s selfie-64-2-32-2-32.s
	diff -q selfie-64-2-32.m selfie-64-2-32-2-32.m
	diff -q selfie-64-2-32.s selfie-64-2-32-2-32.s

# Compile Hello World! program and identical but minified version
whitespace: selfie
	./selfie -c examples/hello-world.c -o examples/hello-world.m -s examples/hello-world.s \
	         -c examples/hello-world-minified.c -o examples/hello-world-minified.m -s examples/hello-world-minified.s
	diff -q examples/hello-world.m examples/hello-world-minified.m
	diff -q examples/hello-world.s examples/hello-world-minified.s
	./selfie -l examples/hello-world.m -m 1

# Compile and run quine and compare its output to itself
quine: selfie selfie.h
	./selfie -c selfie.h examples/quine.c -m 1 | sed '/selfie/d' | awk '/./' | diff --strip-trailing-cr examples/quine.c -

# Demonstrate available escape sequences
escape: selfie
	./selfie -c examples/escape.c -m 1

# Run debugger
debug: selfie
	./selfie -c examples/pointer.c -d 1

# Run replay engine
replay: selfie
	./selfie -c examples/division-by-zero.c -r 1

# Run selfie on emulator
emu: selfie selfie.m
	./selfie -l selfie.m -m 1

# Run selfie on emulator on emulator
emu-emu: selfie selfie.m
	./selfie -l selfie.m -m 3 -l selfie.m -m 1

# Run selfie on emulator on emulator on emulator, warning: slow!
emu-emu-emu: selfie selfie.m
	./selfie -l selfie.m -m 5 -l selfie.m -m 3 -l selfie.m -m 1

# Run selfie on emulator on hypervisor on emulator
emu-vmm-emu: selfie selfie.m
	./selfie -l selfie.m -m 4 -l selfie.m -y 3 -l selfie.m -m 1

# Run selfie on os on emulator
os-emu: selfie selfie.m
	./selfie -l selfie.m -m 2 -l selfie.m -y 1

# Run selfie on os on hypervisor on emulator
os-vmm-emu: selfie selfie.m
	./selfie -l selfie.m -m 3 -l selfie.m -y 2 -l selfie.m -y 1

# Determine overhead of timer interrupts and context switching
overhead: selfie selfie.m
	./selfie -l selfie.m -m 2 -l selfie.m -c examples/overhead.c -y 1

# Self-compile on emulator
self-emu: selfie selfie.m selfie.s
	./selfie -l selfie.m -m 3 -c selfie.c -o selfie-emu.m -s selfie-emu.s
	diff -q selfie.m selfie-emu.m
	diff -q selfie.s selfie-emu.s

# Self-compile on os on emulator
self-os-emu: selfie selfie.m selfie.s
	./selfie -l selfie.m -m 4 -l selfie.m -y 3 -c selfie.c -o selfie-os.m -s selfie-os.s
	diff -q selfie.m selfie-os.m
	diff -q selfie.s selfie-os.s

# Self-compile on os on hypervisor
self-os-vmm-emu: selfie selfie.m selfie.s
	./selfie -l selfie.m -m 5 -l selfie.m -y 4 -l selfie.m -y 3 -c selfie.c -o selfie-vmm.m -s selfie-vmm.s
	diff -q selfie.m selfie-vmm.m
	diff -q selfie.s selfie-vmm.s

# Self-compile on os on hypervisor on fully mapped virtual memory
min: selfie selfie.m selfie.s
	./selfie -l selfie.m -min 4 -l selfie.m -y 4 -l selfie.m -y 3 -c selfie.c -o selfie-min.m -s selfie-min.s
	diff -q selfie.m selfie-min.m
	diff -q selfie.s selfie-min.s

# Run mobster, the emulator without pager
mob: selfie
	./selfie -c -mob 1

# Self-compile with garbage collector in mipster
gib: selfie selfie.m selfie.s
	./selfie -l selfie.m -gc -m 1 -c selfie.c -o selfie-gib.m -s selfie-gib.s
	diff -q selfie.m selfie-gib.m
	diff -q selfie.s selfie-gib.s

# Self-compile with garbage collector in hypster
hyb: selfie selfie.m selfie.s
	./selfie -l selfie.m -m 3 -l selfie.m -gc -y 1 -c selfie.c -o selfie-hyb.m -s selfie-hyb.s
	diff -q selfie.m selfie-hyb.m
	diff -q selfie.s selfie-hyb.s

# Self-self-compile with garbage collector as library
gclib: selfie selfie.h selfie.m selfie.s tools/gc-lib.c
	./selfie -gc -c selfie.h tools/gc-lib.c -m 3 -c selfie.c -o selfie-gclib.m -s selfie-gclib.s
	diff -q selfie.m selfie-gclib.m
	diff -q selfie.s selfie-gclib.s

# Self-self-compile with self-collecting garbage collectors
giblib: selfie selfie.h selfie.m selfie.s tools/gc-lib.c
	./selfie -gc -c selfie.h tools/gc-lib.c -gc -m 3 -nr -c selfie.c -o selfie-giblib.m -s selfie-giblib.s
	diff -q selfie.m selfie-giblib.m
	diff -q selfie.s selfie-giblib.s

# Test garbage collector as library
gclibtest: selfie selfie.h examples/gc/gc-test.c
	./selfie -gc -c selfie.h examples/gc/gc-test.c -m 1

# Self-self-compile with Boehm garbage collector
boehmgc: selfie selfie-gc.h selfie-gc-nomain.h tools/boehm-gc.c tools/gc-lib.c examples/gc/boehm-gc-test.c
	./selfie -c selfie-gc.h tools/boehm-gc.c -o selfie-boehm-gc.m -gc -m 2 -c selfie-gc.h tools/boehm-gc.c -gc -m 1
	./selfie -l selfie-boehm-gc.m -m 6 -l selfie-boehm-gc.m -gc -y 2 -c selfie-gc.h tools/boehm-gc.c -gc -m 2
	./selfie -gc -c selfie-gc-nomain.h tools/boehm-gc.c tools/gc-lib.c -m 3 -c selfie.c -gc -m 1
	./selfie -gc -c selfie-gc-nomain.h tools/boehm-gc.c tools/gc-lib.c -gc -m 3 -nr -c selfie.c -gc -m 1
	./selfie -gc -c selfie-gc-nomain.h tools/boehm-gc.c examples/gc/boehm-gc-test.c -m 1

# Self-compile with L1 cache and test L1 data cache
cache: selfie selfie.m selfie.s examples/cache/dcache-access-[01].c
	./selfie -l selfie.m -L1 2 -c selfie.c -o selfie-L1.m -s selfie-L1.s
	diff -q selfie.m selfie-L1.m
	diff -q selfie.s selfie-L1.s
	./selfie -c examples/cache/dcache-access-0.c -L1 32
	./selfie -c examples/cache/dcache-access-1.c -L1 32

# Consider these targets as targets, not files
.PHONY: sat brr bzz mon smt beat beator-btor2 rot synthesize rotor-btor2 btor2 more all

# Run more that only requires standard tools and is not too slow
more: sat brr bzz mon smt beat beator-btor2 rot synthesize rotor-btor2

# Run all that only requires standard tools and is not too slow
all: less more

# Compile babysat.c with selfie.h as library into babysat executable
babysat: tools/babysat.c selfie.h
	$(CC) $(CFLAGS) --include selfie.h $< -o $@

# Run babysat, the naive SAT solver, natively and as RISC-U executable
sat: babysat selfie selfie.h
	./babysat examples/sat/rivest.cnf
	./selfie -c selfie.h tools/babysat.c -m 1 examples/sat/rivest.cnf

# Compile buzzr.c with selfie.h as library into buzzr executable
buzzr: tools/buzzr.c selfie.h
	$(CC) $(CFLAGS) --include selfie.h $< -o $@

# Run buzzr, the symbolic execution engine, natively and as RISC-U executable on itself
brr: buzzr selfie.h selfie
	./buzzr -c selfie.h tools/buzzr.c - 1
	./selfie -c selfie.h tools/buzzr.c -m 2 -c selfie.h tools/buzzr.c - 1

# Prevent make from deleting intermediate target buzzr
.SECONDARY: buzzr

# Buzz *-35.c and *-10.c files
%-35.bzz: %-35.c buzzr
	./buzzr -c $< - 10
%-10.bzz: %-10.c buzzr
	./buzzr -c $< - 10

# Gather symbolic execution example files as .bzz files
bzz-1 := $(patsubst %.c,%.bzz,$(wildcard examples/symbolic/*-1-*.c))
bzz-2 := $(patsubst %.c,%.bzz,$(wildcard examples/symbolic/*-2-*.c))
bzz-3 := $(patsubst %.c,%.bzz,$(wildcard examples/symbolic/*-3-*.c))

# Run buzzr on *.c files in symbolic folder
bzz: $(bzz-1) $(bzz-2) $(bzz-3)

# Compile monster.c with selfie.h as library into monster executable
monster: tools/monster.c selfie.h
	$(CC) $(CFLAGS) --include selfie.h $< -o $@

# Run monster, the symbolic execution engine, natively and as RISC-U executable on itself
mon: monster selfie.h selfie
	./monster -c selfie.h tools/monster.c - 0 10
	./selfie -c selfie.h tools/monster.c -m 3 -c selfie.h tools/monster.c - 0 10
# output differs slightly because of different filenames

# Prevent make from deleting intermediate target monster
.SECONDARY: monster

# Translate *-35.c and *-10.c files into SMT-LIB model
%-35.smt: %-35.c monster
	./monster -c $< - 0 35 --merge-enabled
%-10.smt: %-10.c monster
	./monster -c $< - 0 10 --merge-enabled

# Gather symbolic execution example files as .smt files
smts-1 := $(patsubst %.c,%.smt,$(wildcard examples/symbolic/*-1-*.c))
smts-2 := $(patsubst %.c,%.smt,$(wildcard examples/symbolic/*-2-*.c))
smts-3 := $(patsubst %.c,%.smt,$(wildcard examples/symbolic/*-3-*.c))

# Run monster on *.c files in symbolic folder
smt: $(smts-1) $(smts-2) $(smts-3)

# Compile beator.c with selfie.h as library into beator executable
beator: tools/beator.c selfie.h
	$(CC) $(CFLAGS) --include selfie.h $< -o $@

# Run beator, the RISC-U symbolic model generator, natively on itself and as RISC-U executable
beat: beator selfie.h selfie
	./beator -c selfie.h tools/beator.c - 0 --check-block-access
	./selfie -c selfie.h tools/beator.c -m 1
# RISC-U executable also works on itself but output differs slightly
# because of different filenames and values of a6 register

# Prevent make from deleting intermediate target beator
.SECONDARY: beator

# Translate *.c including selfie.c into BTOR2 model using beator
%-beaten.btor2: %.c beator
	./beator -c $< - 0 --check-block-access

# Gather symbolic execution example files as .btor2 files generated by beator
beators := $(patsubst %.c,%-beaten.btor2,$(wildcard examples/symbolic/*.c))

# Run beator on *.c files in symbolic folder and even on selfie
beator-btor2: $(beators) selfie-beaten.btor2

# Compile rotor.c with selfie.h as library into rotor executable
rotor: tools/rotor.c selfie.h
	$(CC) $(CFLAGS) --include selfie.h $< -o $@

# Invoke rotor with arguments in arch and rotor variables
arch = -m64
rotor = 0

# Run rotor, the RISC-V symbolic model generator, natively on itself and as RISC-U executable
rot: rotor selfie.h selfie
	./rotor -c selfie.h tools/rotor.c - $(rotor)
	./selfie -c selfie.h tools/rotor.c -m 1
# RISC-U executable also works on itself but output differs slightly
# because of different filenames and values of a6 register

# Prevent make from deleting intermediate target rotor
.SECONDARY: rotor

# Translate *.c including selfie.c into BTOR2 model using rotor
%-rotorized.btor2: %.c rotor
	./rotor $(arch) -c $< - $(rotor)

# Run rotor to generate 64-bit RISC-V machine model for synthesizing exit system call wrapper
64-bit-riscv-machine-synthesize.btor2: rotor
	./rotor - $(rotor)

# Run rotor to generate 32-bit RISC-V machine model for synthesizing exit system call wrapper
32-bit-riscv-machine-synthesize.btor2: rotor
	./rotor -m32 - $(rotor)

# Run rotor to generate 64-bit and 32-bit RISC-V machine models for synthesizing exit system call wrapper
synthesize: 64-bit-riscv-machine-synthesize.btor2 32-bit-riscv-machine-synthesize.btor2

# Gather symbolic execution example files as .btor2 files generated by rotor
rotors := $(patsubst %.c,%-rotorized.btor2,$(wildcard examples/symbolic/*.c))

# Run rotor on *.c files in symbolic folder and even on selfie as well as to generate RISC-V machine models for code synthesis
rotor-btor2: $(rotors) selfie-rotorized.btor2 synthesize

# Run beator and rotor on *.c files in symbolic folder and even on selfie
btor2: beator-btor2 rotor-btor2

# Consider these targets as targets, not files
.PHONY: spike qemu assemble beator-32 rotor-32 32-bit bitwuzla beator-bitme rotor-bitme bitme extras

# Run everything that requires non-standard tools
extras: spike qemu assemble beator-32 rotor-32 32-bit bitwuzla bitme

# Run selfie on spike
spike: selfie.m selfie.s
	spike pk selfie.m -c selfie.c -o selfie-spike.m -s selfie-spike.s -m 1
	diff -q selfie.m selfie-spike.m
	diff -q selfie.s selfie-spike.s

# Run selfie on qemu usermode emulation
qemu: selfie.m selfie.s
	qemu-riscv64-static selfie.m -c selfie.c -o selfie-qemu.m -s selfie-qemu.s -m 1
	diff -q selfie.m selfie-qemu.m
	diff -q selfie.s selfie-qemu.s

# Assemble RISC-U with GNU toolchain for RISC-V
assemble: selfie.s
	riscv64-linux-gnu-as selfie.s

# Compile beator.c with selfie.h as library into 32-bit beator executable
beator-32: tools/beator.c selfie.h
	$(CC) $(32-BIT-CFLAGS) --include selfie.h $< -o $@

# Compile rotor.c with selfie.h as library into 32-bit rotor executable
rotor-32: tools/rotor.c selfie.h
	$(CC) $(32-BIT-CFLAGS) --include selfie.h $< -o $@

# Self-self-compile, self-execute, self-host, self-gc 32-bit selfie
32-bit: selfie-32 selfie.h selfie-gc.h tools/boehm-gc.c beator-32 rotor-32
	./selfie-32 -c selfie.c -o selfie-32.m -s selfie-32.s -m 2 -c selfie.c -o selfie-32-2-32.m -s selfie-32-2-32.s
	diff -q selfie-32.m selfie-32-2-32.m
	diff -q selfie-32.s selfie-32-2-32.s
	./selfie-32 -l selfie-32.m -m 2 -l selfie-32.m -m 1
	./selfie-32 -l selfie-32.m -m 2 -l selfie-32.m -y 1 -l selfie-32.m -y 1
	./selfie-32 -l selfie-32.m -gc -m 1 -c selfie.c
	./selfie-32 -l selfie-32.m -m 3 -l selfie-32.m -gc -y 1 -c selfie.c
	./selfie-32 -gc -c selfie.h tools/gc-lib.c -gc -m 3 -nr -c selfie.c
	./selfie-32 -c selfie-gc.h tools/boehm-gc.c -gc -m 1 -c selfie.c
	qemu-riscv32-static selfie-32.m -c selfie.c -o selfie-qemu-32.m -s selfie-qemu-32.s -m 1
	diff -q selfie-32.m selfie-qemu-32.m
	diff -q selfie-32.s selfie-qemu-32.s
	riscv64-linux-gnu-as selfie-32.s
	./beator-32 -c selfie.h tools/beator.c - 0 --check-block-access
	./rotor-32 -c selfie.h tools/rotor.c - $(rotor)

# Run bitwuzla SMT solver on SMT-LIB files generated by monster
bitwuzla: smt
	$(foreach file, $(smts-1), [ $$(bitwuzla $(file) | grep -c ^sat$$) -eq 1 ] &&) true
	$(foreach file, $(smts-2), [ $$(bitwuzla $(file) | grep -c ^sat$$) -eq 2 ] &&) true
	$(foreach file, $(smts-3), [ $$(bitwuzla $(file) | grep -c ^sat$$) -eq 3 ] &&) true

# Run bitme bounded model checker on BTOR2 files generated by beator
beator-bitme: beator-btor2
	$(foreach file, $(beators), tools/bitme.py $(file) &&) true

# Run bitme bounded model checker on BTOR2 files generated by rotor
rotor-bitme: rotor-btor2
	$(foreach file, $(rotors), tools/bitme.py $(file) &&) true
	tools/bitme.py 64-bit-riscv-machine-synthesize.btor2
	tools/bitme.py 32-bit-riscv-machine-synthesize.btor2

# Run bitme bounded model checker on BTOR2 files generated by beator and rotor
bitme: beator-bitme rotor-bitme

# Consider these targets as targets, not files
.PHONY: validator grader grade pythons

# Run everything that requires python
pythons: validator grader grade

# files where validator fails (e.g. timeout) and succeeds
failingFiles := $(wildcard examples/symbolic/*-fail-*.c)
succeedFiles := $(filter-out $(failingFiles),$(wildcard examples/symbolic/*.c))

# Run validator on *.c files in symbolic. The btormc timeout is set to 2m:
# the slowest succeeding file (recursive-ackermann) needs ~70s of btormc
# time, while the slowest failing file that *does* eventually verify
# (three-level-nested-loop-fail) needs ~7m. 2m sits comfortably between
# those bounds, so all succeedFiles verify and all failingFiles either
# fail verification or hit the btormc timeout, as required.
validator: selfie beator
	$(foreach file, $(succeedFiles), tools/validator.py -tb 2m $(file) &&) true
	$(foreach file, $(failingFiles), ! tools/validator.py -tb 2m $(file) &&) true

# Test autograder
grader: selfie
	cd grader && python3 -m unittest discover -v

# Run autograder
grade:
	grader/self.py self-compile

# Consider these targets as targets, not files
.PHONY: everything clean

# Run everything, except anything that requires python
everything: all extras

# Clean up
clean:
	rm -f *.m
	rm -f *.s
	rm -f *.smt
	rm -f *.btor2
	rm -f examples/*.m
	rm -f examples/*.s
	rm -f examples/symbolic/*.smt
	rm -f examples/symbolic/*.btor2
	rm -f tools/*.smt
	rm -f tools/*.btor2
	rm -f selfie selfie-32 selfie.h selfie-gc.h selfie-gc-nomain.h selfie.exe
	rm -f babysat buzzr monster beator beator-32 rotor rotor-32