| # |
| # american fuzzy lop++ - GCC plugin instrumentation |
| # ----------------------------------------------- |
| # |
| # Written by Austin Seipp <aseipp@pobox.com> and |
| # Laszlo Szekeres <lszekeres@google.com> and |
| # Michal Zalewski and |
| # Heiko Eißfeldt <heiko@hexco.de> |
| # |
| # GCC integration design is based on the LLVM design, which comes |
| # from Laszlo Szekeres. |
| # |
| # Copyright 2015 Google Inc. All rights reserved. |
| # Copyright 2019-2020 AFLplusplus Project. All rights reserved. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at: |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| |
| PREFIX ?= /usr/local |
| HELPER_PATH ?= $(PREFIX)/lib/afl |
| BIN_PATH ?= $(PREFIX)/bin |
| DOC_PATH ?= $(PREFIX)/share/doc/afl |
| MAN_PATH ?= $(PREFIX)/man/man8 |
| |
| VERSION = $(shell grep '^$(HASH)define VERSION ' ../config.h | cut -d '"' -f2) |
| VERSION:sh= grep '^$(HASH)define VERSION ' ../config.h | cut -d '"' -f2 |
| |
| CFLAGS ?= -O3 -g -funroll-loops -D_FORTIFY_SOURCE=2 |
| CFLAGS = -Wall -I../include -Wno-pointer-sign \ |
| -DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \ |
| -DGCC_VERSION=\"$(GCCVER)\" -DGCC_BINDIR=\"$(GCCBINDIR)\" \ |
| -Wno-unused-function |
| |
| CXXFLAGS = -O3 -g -funroll-loops -D_FORTIFY_SOURCE=2 |
| CXXEFLAGS = $(CXXFLAGS) -Wall |
| |
| CC = gcc |
| CXX = g++ |
| |
| MYCC=$(CC:clang=gcc) |
| MYCXX=$(CXX:clang++=g++) |
| |
| PLUGIN_PATH = $(shell $(MYCC) -print-file-name=plugin) |
| PLUGIN_PATH:sh= $(MYCC) -print-file-name=plugin |
| PLUGIN_FLAGS = -fPIC -fno-rtti -I"$(PLUGIN_PATH)/include" |
| HASH=\# |
| |
| GCCVER = $(shell $(MYCC) --version 2>/dev/null | awk 'NR == 1 {print $$NF}') |
| GCCVER:sh= gcc --version 2>/dev/null | awk 'NR == 1 {print $$NF}' |
| GCCBINDIR = $(shell dirname `command -v $(MYCC)` 2>/dev/null ) |
| GCCBINDIR:sh= dirname `command -v $(MYCC)` 2>/dev/null |
| |
| _SHMAT_OK= $(shell echo '$(HASH)include <sys/ipc.h>@$(HASH)include <sys/shm.h>@int main() { int _id = shmget(IPC_PRIVATE, 65536, IPC_CREAT | IPC_EXCL | 0600); shmctl(_id, IPC_RMID, 0); return 0;}' | tr @ '\n' | $(MYCC) -x c - -o .test2 2>/dev/null && echo 1 || echo 0 ; rm -f .test2 ) |
| _SHMAT_OK:sh= echo '$(HASH)include <sys/ipc.h>@$(HASH)include <sys/shm.h>@int main() { int _id = shmget(IPC_PRIVATE, 65536, IPC_CREAT | IPC_EXCL | 0600); shmctl(_id, IPC_RMID, 0); return 0;}' | tr @ '\n' | $(MYCC) -x c - -o .test2 2>/dev/null && echo 1 || echo 0 ; rm -f .test2 |
| |
| IGNORE_MMAP=$(TEST_MMAP:1=0) |
| __SHMAT_OK=$(_SHMAT_OK)$(IGNORE_MMAP) |
| ___SHMAT_OK=$(__SHMAT_OK:10=0) |
| SHMAT_OK=$(___SHMAT_OK:1=1) |
| _CFLAGS_ADD=$(SHMAT_OK:1=) |
| CFLAGS_ADD=$(_CFLAGS_ADD:0=-DUSEMMAP=1) |
| |
| _LDFLAGS_ADD=$(SHMAT_OK:1=) |
| LDFLAGS_ADD=$(_LDFLAGS_ADD:0=-lrt) |
| |
| CFLAGS += $(CFLAGS_ADD) |
| LDFLAGS += $(LDFLAGS_ADD) |
| |
| PROGS = ../afl-gcc-pass.so ../afl-gcc-fast ../afl-gcc-rt.o |
| |
| all: test_shm test_deps $(PROGS) ../afl-gcc-fast.8 test_build all_done |
| |
| debug: |
| @echo _SHMAT_OK = $(_SHMAT_OK) |
| @echo IGNORE_MMAP = $(IGNORE_MMAP) |
| @echo __SHMAT_OK = $(__SHMAT_OK) |
| @echo ___SHMAT_OK = $(___SHMAT_OK) |
| @echo SHMAT_OK = $(SHMAT_OK) |
| |
| test_shm: |
| @if [ "$(SHMAT_OK)" == "1" ]; then \ |
| echo "[+] shmat seems to be working."; \ |
| rm -f .test2; \ |
| else \ |
| echo "[-] shmat seems not to be working, switching to mmap implementation"; \ |
| fi |
| |
| test_deps: |
| @echo "[*] Checking for working '$(MYCC)'..." |
| @type $(MYCC) >/dev/null 2>&1 || ( echo "[-] Oops, can't find '$(MYCC)'. Make sure that it's in your \$$PATH (or set \$$CC and \$$CXX)."; exit 1 ) |
| # @echo "[*] Checking for gcc for plugin support..." |
| # @$(MYCC) -v 2>&1 | grep -q -- --enable-plugin || ( echo "[-] Oops, this gcc has not been configured with plugin support."; exit 1 ) |
| @echo "[*] Checking for gcc plugin development header files..." |
| @test -d `$(MYCC) -print-file-name=plugin`/include || ( echo "[-] Oops, can't find gcc header files. Be sure to install 'gcc-X-plugin-dev'."; exit 1 ) |
| @echo "[*] Checking for '../afl-showmap'..." |
| @test -f ../afl-showmap || ( echo "[-] Oops, can't find '../afl-showmap'. Be sure to compile AFL first."; exit 1 ) |
| @echo "[+] All set and ready to build." |
| |
| afl-common.o: ../src/afl-common.c |
| $(MYCC) $(CFLAGS) -c $< -o $@ $(LDFLAGS) |
| |
| ../afl-gcc-fast: afl-gcc-fast.c afl-common.o |
| $(MYCC) -DAFL_GCC_CC=\"$(MYCC)\" -DAFL_GCC_CXX=\"$(MYCXX)\" $(CFLAGS) afl-gcc-fast.c afl-common.o -o $@ $(LDFLAGS) |
| ln -sf afl-gcc-fast ../afl-g++-fast |
| |
| ../afl-gcc-pass.so: afl-gcc-pass.so.cc |
| $(MYCXX) $(CXXEFLAGS) $(PLUGIN_FLAGS) -shared afl-gcc-pass.so.cc -o $@ |
| |
| ../afl-gcc-rt.o: afl-gcc-rt.o.c |
| $(MYCC) $(CFLAGS) -fPIC -c afl-gcc-rt.o.c -o $@ |
| |
| test_build: $(PROGS) |
| @echo "[*] Testing the CC wrapper and instrumentation output..." |
| @unset AFL_USE_ASAN AFL_USE_MSAN; AFL_QUIET=1 AFL_INST_RATIO=100 AFL_PATH=. AFL_CC=$(CC) ../afl-gcc-fast $(CFLAGS) ../test-instr.c -o test-instr $(LDFLAGS) |
| # unset AFL_USE_ASAN AFL_USE_MSAN; AFL_INST_RATIO=100 AFL_PATH=. AFL_CC=$(CC) ../afl-gcc-fast $(CFLAGS) ../test-instr.c -o test-instr $(LDFLAGS) |
| @ASAN_OPTIONS=detect_leaks=0 ../afl-showmap -m none -q -o .test-instr0 ./test-instr </dev/null |
| @ASAN_OPTIONS=detect_leaks=0 echo 1 | ../afl-showmap -m none -q -o .test-instr1 ./test-instr |
| @rm -f test-instr |
| @trap 'rm .test-instr0 .test-instr1' 0;if cmp -s .test-instr0 .test-instr1; then echo; echo "Oops, the instrumentation does not seem to be behaving correctly!"; echo; echo "Please post to https://github.com/AFLplusplus/AFLplusplus/issues to troubleshoot the issue."; echo; exit 1; fi |
| @echo "[+] All right, the instrumentation seems to be working!" |
| |
| all_done: test_build |
| @echo "[+] All done! You can now use '../afl-gcc-fast' to compile programs." |
| |
| .NOTPARALLEL: clean |
| |
| ../afl-gcc-fast.8: ../afl-gcc-fast |
| @echo .TH $* 8 `date "+%Y-%m-%d"` "afl++" > ../$@ |
| @echo .SH NAME >> ../$@ |
| @echo .B $* >> ../$@ |
| @echo >> ../$@ |
| @echo .SH SYNOPSIS >> ../$@ |
| @../$* -h 2>&1 | head -n 3 | tail -n 1 | sed 's/^\.\///' >> ../$@ |
| @echo >> ../$@ |
| @echo .SH OPTIONS >> ../$@ |
| @echo .nf >> ../$@ |
| @../$* -h 2>&1 | tail -n +4 >> ../$@ |
| @echo >> ../$@ |
| @echo .SH AUTHOR >> ../$@ |
| @echo "afl++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de>, Andrea Fioraldi <andreafioraldi@gmail.com> and Dominik Maier <domenukk@gmail.com>" >> ../$@ |
| @echo The homepage of afl++ is: https://github.com/AFLplusplus/AFLplusplus >> ../$@ |
| @echo >> ../$@ |
| @echo .SH LICENSE >> ../$@ |
| @echo Apache License Version 2.0, January 2004 >> ../$@ |
| ln -sf afl-gcc-fast.8 ../afl-g++-fast.8 |
| |
| install: all |
| install -m 755 ../afl-gcc-fast $${DESTDIR}$(BIN_PATH) |
| install -m 755 ../afl-gcc-pass.so ../afl-gcc-rt.o $${DESTDIR}$(HELPER_PATH) |
| install -m 644 -T README.md $${DESTDIR}$(DOC_PATH)/README.gcc_plugin.md |
| install -m 644 -T README.whitelist.md $${DESTDIR}$(DOC_PATH)/README.gcc_plugin.whitelist.md |
| |
| clean: |
| rm -f *.o *.so *~ a.out core core.[1-9][0-9]* test-instr .test-instr0 .test-instr1 .test2 |
| rm -f $(PROGS) afl-common.o ../afl-g++-fast ../afl-g*-fast.8 |
