1#
2# american fuzzy lop - makefile
3# -----------------------------
4#
5# Written and maintained by Michal Zalewski <lcamtuf@google.com>
6#
7# Copyright 2013, 2014, 2015, 2016, 2017 Google Inc. All rights reserved.
8#
9# Licensed under the Apache License, Version 2.0 (the "License");
10# you may not use this file except in compliance with the License.
11# You may obtain a copy of the License at:
12#
13#   http://www.apache.org/licenses/LICENSE-2.0
14#
15
16PROGNAME    = afl
17VERSION     = $(shell grep '^\#define VERSION ' config.h | cut -d '"' -f2)
18
19PREFIX     ?= /usr/local
20BIN_PATH    = $(PREFIX)/bin
21HELPER_PATH = $(PREFIX)/lib/afl
22DOC_PATH    = $(PREFIX)/share/doc/afl
23MISC_PATH   = $(PREFIX)/share/afl
24
25# PROGS intentionally omit afl-as, which gets installed elsewhere.
26
27PROGS       = afl-gcc afl-fuzz afl-showmap afl-tmin afl-gotcpu afl-analyze
28SH_PROGS    = afl-plot afl-cmin afl-whatsup
29
30CFLAGS     ?= -O3 -funroll-loops
31CFLAGS     += -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign \
32	      -DAFL_PATH=\"$(HELPER_PATH)\" -DDOC_PATH=\"$(DOC_PATH)\" \
33	      -DBIN_PATH=\"$(BIN_PATH)\"
34
35ifneq "$(filter Linux GNU%,$(shell uname))" ""
36  LDFLAGS  += -ldl
37endif
38
39ifeq "$(findstring clang, $(shell $(CC) --version 2>/dev/null))" ""
40  TEST_CC   = afl-gcc
41else
42  TEST_CC   = afl-clang
43endif
44
45COMM_HDR    = alloc-inl.h config.h debug.h types.h
46
47all: test_x86 $(PROGS) afl-as all_done
48
49ifndef AFL_NO_X86
50
51test_x86:
52	@echo "[*] Checking for the ability to compile x86 code..."
53	@echo 'main() { __asm__("xorb %al, %al"); }' | $(CC) -w -x c - -o .test || ( echo; echo "Oops, looks like your compiler can't generate x86 code."; echo; echo "Don't panic! You can use the LLVM or QEMU mode, but see docs/INSTALL first."; echo "(To ignore this error, set AFL_NO_X86=1 and try again.)"; echo; exit 1 )
54	@rm -f .test
55	@echo "[+] Everything seems to be working, ready to compile."
56
57else
58
59test_x86:
60	@echo "[!] Note: skipping x86 compilation checks (AFL_NO_X86 set)."
61
62endif
63
64afl-gcc: afl-gcc.c $(COMM_HDR) | test_x86
65	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
66	set -e; for i in afl-g++ afl-clang afl-clang++; do ln -sf afl-gcc $$i; done
67
68afl-as: afl-as.c afl-as.h $(COMM_HDR) | test_x86
69	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
70	ln -sf afl-as as
71
72afl-fuzz: afl-fuzz.c $(COMM_HDR) | test_x86
73	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
74
75afl-showmap: afl-showmap.c $(COMM_HDR) | test_x86
76	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
77
78afl-tmin: afl-tmin.c $(COMM_HDR) | test_x86
79	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
80
81afl-analyze: afl-analyze.c $(COMM_HDR) | test_x86
82	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
83
84afl-gotcpu: afl-gotcpu.c $(COMM_HDR) | test_x86
85	$(CC) $(CFLAGS) $@.c -o $@ $(LDFLAGS)
86
87ifndef AFL_NO_X86
88
89test_build: afl-gcc afl-as afl-showmap
90	@echo "[*] Testing the CC wrapper and instrumentation output..."
91	unset AFL_USE_ASAN AFL_USE_MSAN; AFL_QUIET=1 AFL_INST_RATIO=100 AFL_PATH=. ./$(TEST_CC) $(CFLAGS) test-instr.c -o test-instr $(LDFLAGS)
92	echo 0 | ./afl-showmap -m none -q -o .test-instr0 ./test-instr
93	echo 1 | ./afl-showmap -m none -q -o .test-instr1 ./test-instr
94	@rm -f test-instr
95	@cmp -s .test-instr0 .test-instr1; DR="$$?"; rm -f .test-instr0 .test-instr1; if [ "$$DR" = "0" ]; then echo; echo "Oops, the instrumentation does not seem to be behaving correctly!"; echo; echo "Please ping <lcamtuf@google.com> to troubleshoot the issue."; echo; exit 1; fi
96	@echo "[+] All right, the instrumentation seems to be working!"
97
98else
99
100test_build: afl-gcc afl-as afl-showmap
101	@echo "[!] Note: skipping build tests (you may need to use LLVM or QEMU mode)."
102
103endif
104
105all_done:
106	@if [ ! "`which clang 2>/dev/null`" = "" ]; then echo "[+] LLVM users: see llvm_mode/README.llvm for a faster alternative to afl-gcc."; fi
107	@echo "[+] All done! Be sure to review README - it's pretty short and useful."
108	@if [ "`uname`" = "Darwin" ]; then printf "\nWARNING: Fuzzing on MacOS X is slow because of the unusually high overhead of\nfork() on this OS. Consider using Linux or *BSD. You can also use VirtualBox\n(virtualbox.org) to put AFL inside a Linux or *BSD VM.\n\n"; fi
109	@! tty <&1 >/dev/null || printf "\033[0;30mNOTE: If you can read this, your terminal probably uses white background.\nThis will make the UI hard to read. See docs/status_screen.txt for advice.\033[0m\n" 2>/dev/null
110
111.NOTPARALLEL: clean
112
113clean:
114	rm -f $(PROGS) afl-as as afl-g++ afl-clang afl-clang++ *.o *~ a.out core core.[1-9][0-9]* *.stackdump test .test test-instr .test-instr0 .test-instr1 qemu_mode/qemu-2.10.0.tar.bz2 afl-qemu-trace
115	rm -rf out_dir qemu_mode/qemu-2.10.0
116	$(MAKE) -C llvm_mode clean
117	$(MAKE) -C libdislocator clean
118	$(MAKE) -C libtokencap clean
119
120install: all
121	mkdir -p -m 755 $${DESTDIR}$(BIN_PATH) $${DESTDIR}$(HELPER_PATH) $${DESTDIR}$(DOC_PATH) $${DESTDIR}$(MISC_PATH)
122	rm -f $${DESTDIR}$(BIN_PATH)/afl-plot.sh
123	install -m 755 $(PROGS) $(SH_PROGS) $${DESTDIR}$(BIN_PATH)
124	rm -f $${DESTDIR}$(BIN_PATH)/afl-as
125	if [ -f afl-qemu-trace ]; then install -m 755 afl-qemu-trace $${DESTDIR}$(BIN_PATH); fi
126ifndef AFL_TRACE_PC
127	if [ -f afl-clang-fast -a -f afl-llvm-pass.so -a -f afl-llvm-rt.o ]; then set -e; install -m 755 afl-clang-fast $${DESTDIR}$(BIN_PATH); ln -sf afl-clang-fast $${DESTDIR}$(BIN_PATH)/afl-clang-fast++; install -m 755 afl-llvm-pass.so afl-llvm-rt.o $${DESTDIR}$(HELPER_PATH); fi
128else
129	if [ -f afl-clang-fast -a -f afl-llvm-rt.o ]; then set -e; install -m 755 afl-clang-fast $${DESTDIR}$(BIN_PATH); ln -sf afl-clang-fast $${DESTDIR}$(BIN_PATH)/afl-clang-fast++; install -m 755 afl-llvm-rt.o $${DESTDIR}$(HELPER_PATH); fi
130endif
131	if [ -f afl-llvm-rt-32.o ]; then set -e; install -m 755 afl-llvm-rt-32.o $${DESTDIR}$(HELPER_PATH); fi
132	if [ -f afl-llvm-rt-64.o ]; then set -e; install -m 755 afl-llvm-rt-64.o $${DESTDIR}$(HELPER_PATH); fi
133	set -e; for i in afl-g++ afl-clang afl-clang++; do ln -sf afl-gcc $${DESTDIR}$(BIN_PATH)/$$i; done
134	install -m 755 afl-as $${DESTDIR}$(HELPER_PATH)
135	ln -sf afl-as $${DESTDIR}$(HELPER_PATH)/as
136	install -m 644 docs/README docs/ChangeLog docs/*.txt $${DESTDIR}$(DOC_PATH)
137	cp -r testcases/ $${DESTDIR}$(MISC_PATH)
138	cp -r dictionaries/ $${DESTDIR}$(MISC_PATH)
139
140publish: clean
141	test "`basename $$PWD`" = "afl" || exit 1
142	test -f ~/www/afl/releases/$(PROGNAME)-$(VERSION).tgz; if [ "$$?" = "0" ]; then echo; echo "Change program version in config.h, mmkay?"; echo; exit 1; fi
143	cd ..; rm -rf $(PROGNAME)-$(VERSION); cp -pr $(PROGNAME) $(PROGNAME)-$(VERSION); \
144	  tar -cvz -f ~/www/afl/releases/$(PROGNAME)-$(VERSION).tgz $(PROGNAME)-$(VERSION)
145	chmod 644 ~/www/afl/releases/$(PROGNAME)-$(VERSION).tgz
146	( cd ~/www/afl/releases/; ln -s -f $(PROGNAME)-$(VERSION).tgz $(PROGNAME)-latest.tgz )
147	cat docs/README >~/www/afl/README.txt
148	cat docs/status_screen.txt >~/www/afl/status_screen.txt
149	cat docs/historical_notes.txt >~/www/afl/historical_notes.txt
150	cat docs/technical_details.txt >~/www/afl/technical_details.txt
151	cat docs/ChangeLog >~/www/afl/ChangeLog.txt
152	cat docs/QuickStartGuide.txt >~/www/afl/QuickStartGuide.txt
153	echo -n "$(VERSION)" >~/www/afl/version.txt
154.PHONY: libdislocator llvm_mode test_llvm_mode
155
156libdislocator:
157	$(MAKE) -C libdislocator
158
159llvm_mode:
160	$(MAKE) -C llvm_mode
161
162test_llvm_mode:
163	$(MAKE) -C llvm_mode test_build
164