llvm_mode/Makefile - platform/external/AFLplusplus - Git at Google

 #
 # american fuzzy lop - LLVM instrumentation
 # -----------------------------------------
 #
 # Written by Laszlo Szekeres <lszekeres@google.com> and
 #            Michal Zalewski
 #
 # LLVM integration design comes from Laszlo Szekeres.
 #
 # Copyright 2015, 2016 Google Inc. 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
 #

 # For Heiko:
 #TEST_MMAP=1

 PREFIX      ?= /usr/local
 HELPER_PATH  = $(PREFIX)/lib/afl
 BIN_PATH     = $(PREFIX)/bin

 VERSION     = $(shell grep '^\#define VERSION ' ../config.h | cut -d '"' -f2)

 ifeq "$(shell uname)" "OpenBSD"
   LLVM_CONFIG ?= $(BIN_PATH)/llvm-config
   HAS_OPT = $(shell test -x $(BIN_PATH)/opt && echo 0 || echo 1)
   ifeq "$(HAS_OPT)" "1"
     $(error llvm_mode needs a complete llvm installation (versions 3.8.0 up to 9) -> e.g. "pkg_add llvm-7.0.1p9")
   endif
 else
   LLVM_CONFIG ?= llvm-config
 endif

 LLVMVER  = $(shell $(LLVM_CONFIG) --version 2>/dev/null )
 LLVM_UNSUPPORTED = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^[12]|^3\.0|^1[0-9]' && echo 1 || echo 0 )
 LLVM_NEW_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null | egrep -q '^1[0-9]' && echo 1 || echo 0 )
 LLVM_MAJOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null | sed 's/\..*//')
 LLVM_BINDIR = $(shell $(LLVM_CONFIG) --bindir 2>/dev/null)
 LLVM_STDCXX = gnu++11
 LLVM_APPLE = $(shell clang -v 2>&1 | grep -iq apple && echo 1 || echo 0)

 ifeq "$(LLVMVER)" ""
   $(error llvm_mode needs llvm-config, which was not found)
 endif

 ifeq "$(LLVM_UNSUPPORTED)" "1"
   $(warn llvm_mode only supports llvm versions 3.8.0 up to 9)
 endif

 ifeq "$(LLVM_MAJOR)" "9"
   $(info llvm_mode detected llvm 9, enabling neverZero implementation)
 endif

 ifeq "$(LLVM_NEW_API)" "1"
   $(info llvm_mode detected llvm 10+, enabling neverZero implementation and c++14)
   LLVM_STDCXX = c++14
 endif

 ifeq "$(LLVM_APPLE)" "1"
   $(warn llvm_mode will not compile with Xcode clang...)
 endif

 CFLAGS      ?= -O3 -funroll-loops
 CFLAGS      += -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -I ../include/ \
                -DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \
                -DLLVM_BINDIR=\"$(LLVM_BINDIR)\" -DVERSION=\"$(VERSION)\"
 ifdef AFL_TRACE_PC
   CFLAGS    += -DUSE_TRACE_PC=1
 endif

 CXXFLAGS    ?= -O3 -funroll-loops
 CXXFLAGS    += -Wall -D_FORTIFY_SOURCE=2 -g -I ../include/ \
                -DVERSION=\"$(VERSION)\" -Wno-variadic-macros

 CLANG_CFL    = `$(LLVM_CONFIG) --cxxflags` -Wl,-znodelete -fno-rtti -fpic $(CXXFLAGS)
 CLANG_LFL    = `$(LLVM_CONFIG) --ldflags` $(LDFLAGS)


 # User teor2345 reports that this is required to make things work on MacOS X.
 ifeq "$(shell uname)" "Darwin"
   CLANG_LFL += -Wl,-flat_namespace -Wl,-undefined,suppress
 endif

 ifeq "$(shell uname)" "OpenBSD"
   CLANG_LFL += `$(LLVM_CONFIG) --libdir`/libLLVM.so
 endif

 # We were using llvm-config --bindir to get the location of clang, but
 # this seems to be busted on some distros, so using the one in $PATH is
 # probably better.

 CC         = $(LLVM_BINDIR)/clang
 CXX        = $(LLVM_BINDIR)/clang++

 ifeq "$(shell test -e $(CC) || echo 1 )" "1"
   # llvm-config --bindir is not providing a valid path, so ...
   ifeq "$(shell test -e '$(BIN_DIR)/clang' && echo 1)" "1"
     # we found one in the local install directory, lets use these
     CC         = $(BIN_DIR)/clang
     CXX        = $(BIN_DIR)/clang++
   else
     # hope for the best
     $(warn we have trouble finding clang/clang++ - llvm-config is not helping us)
     CC         = clang
     CXX        = clang++
   endif
 endif

 # sanity check.
 # Are versions of clang --version and llvm-config --version equal?
 CLANGVER = $(shell $(CC) --version | sed -E -ne '/^.*version\ ([0-9]\.[0-9]\.[0-9]).*/s//\1/p')


 ifeq "$(shell echo '\#include <sys/ipc.h>@\#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' | $(CC) -x c - -o .test2 2>/dev/null && echo 1 || echo 0 )" "1"
         SHMAT_OK=1
 else
         SHMAT_OK=0
         CFLAGS+=-DUSEMMAP=1
         LDFLAGS += -lrt
 endif

 ifeq "$(TEST_MMAP)" "1"
         SHMAT_OK=0
         CFLAGS+=-DUSEMMAP=1
         LDFLAGS += -lrt
 endif

 ifndef AFL_TRACE_PC
   PROGS      = ../afl-clang-fast ../afl-llvm-pass.so ../libLLVMInsTrim.so ../afl-llvm-rt.o ../afl-llvm-rt-32.o ../afl-llvm-rt-64.o ../compare-transform-pass.so ../split-compares-pass.so ../split-switches-pass.so
 else
   PROGS      = ../afl-clang-fast ../afl-llvm-rt.o ../afl-llvm-rt-32.o ../afl-llvm-rt-64.o ../compare-transform-pass.so ../split-compares-pass.so ../split-switches-pass.so
 endif

 ifneq "$(CLANGVER)" "$(LLVMVER)"
   CC = $(shell llvm-config --bindir)/clang
   CXX = $(shell llvm-config --bindir)/clang++
 endif

 all: test_shm test_deps $(PROGS) afl-clang-fast.8 test_build all_done


 ifeq "$(SHMAT_OK)" "1"

 test_shm:
 	@echo "[+] shmat seems to be working."
 	@rm -f .test2

 else

 test_shm:
 	@echo "[-] shmat seems not to be working, switching to mmap implementation"

 endif


 test_deps:
 ifndef AFL_TRACE_PC
 	@echo "[*] Checking for working 'llvm-config'..."
  ifneq "$(LLVM_APPLE)" "1"
 	@which $(LLVM_CONFIG) >/dev/null 2>&1 || ( echo "[-] Oops, can't find 'llvm-config'. Install clang or set \$$LLVM_CONFIG or \$$PATH beforehand."; echo "    (Sometimes, the binary will be named llvm-config-3.5 or something like that.)"; exit 1 )
  endif
 else
 	@echo "[!] Note: using -fsanitize=trace-pc mode (this will fail with older LLVM)."
 endif
 	@echo "[*] Checking for working '$(CC)'..."
 	@which $(CC) >/dev/null 2>&1 || ( echo "[-] Oops, can't find '$(CC)'. Make sure that it's in your \$$PATH (or set \$$CC and \$$CXX)."; exit 1 )
 	@echo "[*] Checking for matching versions of '$(CC)' and '$(LLVM_CONFIG)'"
 ifneq "$(CLANGVER)" "$(LLVMVER)"
 	@echo "[!] WARNING: we have llvm-config version $(LLVMVER) and a clang version $(CLANGVER)"
 	@echo "[!] Retrying with the clang compiler from llvm: CC=`llvm-config --bindir`/clang"
 else
 	@echo "[*] We have llvm-config version $(LLVMVER) with a clang version $(CLANGVER), good."
 endif
 	@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-clang-fast: afl-clang-fast.c | test_deps
 	$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
 	ln -sf afl-clang-fast ../afl-clang-fast++

 ../libLLVMInsTrim.so: LLVMInsTrim.so.cc MarkNodes.cc | test_deps
 	$(CXX) $(CLANG_CFL) -DLLVMInsTrim_EXPORTS -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< MarkNodes.cc -o $@ $(CLANG_LFL)

 ../afl-llvm-pass.so: afl-llvm-pass.so.cc | test_deps
 	$(CXX) $(CLANG_CFL) -DLLVMInsTrim_EXPORTS -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL)

 # laf
 ../split-switches-pass.so:	split-switches-pass.so.cc | test_deps
 	$(CXX) $(CLANG_CFL) -shared $< -o $@ $(CLANG_LFL)
 ../compare-transform-pass.so:	compare-transform-pass.so.cc | test_deps
 	$(CXX) $(CLANG_CFL) -shared $< -o $@ $(CLANG_LFL)
 ../split-compares-pass.so:	split-compares-pass.so.cc | test_deps
 	$(CXX) $(CLANG_CFL) -shared $< -o $@ $(CLANG_LFL)
 # /laf

 ../afl-llvm-rt.o: afl-llvm-rt.o.c | test_deps
 	$(CC) $(CFLAGS) -fPIC -c $< -o $@

 ../afl-llvm-rt-32.o: afl-llvm-rt.o.c | test_deps
 	@printf "[*] Building 32-bit variant of the runtime (-m32)... "
 	@$(CC) $(CFLAGS) -m32 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi

 ../afl-llvm-rt-64.o: afl-llvm-rt.o.c | test_deps
 	@printf "[*] Building 64-bit variant of the runtime (-m64)... "
 	@$(CC) $(CFLAGS) -m64 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi

 test_build: $(PROGS)
 	@echo "[*] Testing the CC wrapper and instrumentation output..."
 	unset AFL_USE_ASAN AFL_USE_MSAN AFL_INST_RATIO; AFL_QUIET=1 AFL_PATH=. AFL_CC=$(CC) AFL_LLVM_LAF_SPLIT_SWITCHES=1 AFL_LLVM_LAF_TRANSFORM_COMPARES=1 AFL_LLVM_LAF_SPLIT_COMPARES=1 ../afl-clang-fast $(CFLAGS) ../test-instr.c -o test-instr $(LDFLAGS)
 	../afl-showmap -m none -q -o .test-instr0 ./test-instr < /dev/null
 	echo 1 | ../afl-showmap -m none -q -o .test-instr1 ./test-instr
 	@rm -f test-instr
 	@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 post to https://github.com/vanhauser-thc/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-clang-fast' to compile programs."

 .NOTPARALLEL: clean

 vpath  % ..
 %.8: %
 	@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 >> ../$@
 	@echo "afl++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de> and Andrea Fioraldi <andreafioraldi@gmail.com>" >> ../$@
 	@echo  The homepage of afl++ is: https://github.com/vanhauser-thc/AFLplusplus >> ../$@
 	@echo >> ../$@
 	@echo .SH LICENSE >> ../$@
 	@echo Apache License Version 2.0, January 2004 >> ../$@
 	ln -sf afl-clang-fast.8 ../afl-clang-fast++.8

 clean:
 	rm -f *.o *.so *~ a.out core core.[1-9][0-9]* .test2 test-instr .test-instr0 .test-instr1
 	rm -f $(PROGS) ../afl-clang-fast++ ../afl-clang-fast*.8
	#
	# american fuzzy lop - LLVM instrumentation
	# -----------------------------------------
	#
	# Written by Laszlo Szekeres <lszekeres@google.com> and
	# Michal Zalewski
	#
	# LLVM integration design comes from Laszlo Szekeres.
	#
	# Copyright 2015, 2016 Google Inc. 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
	#

	# For Heiko:
	#TEST_MMAP=1

	PREFIX ?= /usr/local
	HELPER_PATH = $(PREFIX)/lib/afl
	BIN_PATH = $(PREFIX)/bin

	VERSION = $(shell grep '^\#define VERSION ' ../config.h \| cut -d '"' -f2)

	ifeq "$(shell uname)" "OpenBSD"
	LLVM_CONFIG ?= $(BIN_PATH)/llvm-config
	HAS_OPT = $(shell test -x $(BIN_PATH)/opt && echo 0 \|\| echo 1)
	ifeq "$(HAS_OPT)" "1"
	$(error llvm_mode needs a complete llvm installation (versions 3.8.0 up to 9) -> e.g. "pkg_add llvm-7.0.1p9")
	endif
	else
	LLVM_CONFIG ?= llvm-config
	endif

	LLVMVER = $(shell $(LLVM_CONFIG) --version 2>/dev/null )
	LLVM_UNSUPPORTED = $(shell $(LLVM_CONFIG) --version 2>/dev/null \| egrep -q '^[12]\|^3\.0\|^1[0-9]' && echo 1 \|\| echo 0 )
	LLVM_NEW_API = $(shell $(LLVM_CONFIG) --version 2>/dev/null \| egrep -q '^1[0-9]' && echo 1 \|\| echo 0 )
	LLVM_MAJOR = $(shell $(LLVM_CONFIG) --version 2>/dev/null \| sed 's/\..*//')
	LLVM_BINDIR = $(shell $(LLVM_CONFIG) --bindir 2>/dev/null)
	LLVM_STDCXX = gnu++11
	LLVM_APPLE = $(shell clang -v 2>&1 \| grep -iq apple && echo 1 \|\| echo 0)

	ifeq "$(LLVMVER)" ""
	$(error llvm_mode needs llvm-config, which was not found)
	endif

	ifeq "$(LLVM_UNSUPPORTED)" "1"
	$(warn llvm_mode only supports llvm versions 3.8.0 up to 9)
	endif

	ifeq "$(LLVM_MAJOR)" "9"
	$(info llvm_mode detected llvm 9, enabling neverZero implementation)
	endif

	ifeq "$(LLVM_NEW_API)" "1"
	$(info llvm_mode detected llvm 10+, enabling neverZero implementation and c++14)
	LLVM_STDCXX = c++14
	endif

	ifeq "$(LLVM_APPLE)" "1"
	$(warn llvm_mode will not compile with Xcode clang...)
	endif

	CFLAGS ?= -O3 -funroll-loops
	CFLAGS += -Wall -D_FORTIFY_SOURCE=2 -g -Wno-pointer-sign -I ../include/ \
	-DAFL_PATH=\"$(HELPER_PATH)\" -DBIN_PATH=\"$(BIN_PATH)\" \
	-DLLVM_BINDIR=\"$(LLVM_BINDIR)\" -DVERSION=\"$(VERSION)\"
	ifdef AFL_TRACE_PC
	CFLAGS += -DUSE_TRACE_PC=1
	endif

	CXXFLAGS ?= -O3 -funroll-loops
	CXXFLAGS += -Wall -D_FORTIFY_SOURCE=2 -g -I ../include/ \
	-DVERSION=\"$(VERSION)\" -Wno-variadic-macros

	CLANG_CFL = `$(LLVM_CONFIG) --cxxflags` -Wl,-znodelete -fno-rtti -fpic $(CXXFLAGS)
	CLANG_LFL = `$(LLVM_CONFIG) --ldflags` $(LDFLAGS)


	# User teor2345 reports that this is required to make things work on MacOS X.
	ifeq "$(shell uname)" "Darwin"
	CLANG_LFL += -Wl,-flat_namespace -Wl,-undefined,suppress
	endif

	ifeq "$(shell uname)" "OpenBSD"
	CLANG_LFL += `$(LLVM_CONFIG) --libdir`/libLLVM.so
	endif

	# We were using llvm-config --bindir to get the location of clang, but
	# this seems to be busted on some distros, so using the one in $PATH is
	# probably better.

	CC = $(LLVM_BINDIR)/clang
	CXX = $(LLVM_BINDIR)/clang++

	ifeq "$(shell test -e $(CC) \|\| echo 1 )" "1"
	# llvm-config --bindir is not providing a valid path, so ...
	ifeq "$(shell test -e '$(BIN_DIR)/clang' && echo 1)" "1"
	# we found one in the local install directory, lets use these
	CC = $(BIN_DIR)/clang
	CXX = $(BIN_DIR)/clang++
	else
	# hope for the best
	$(warn we have trouble finding clang/clang++ - llvm-config is not helping us)
	CC = clang
	CXX = clang++
	endif
	endif

	# sanity check.
	# Are versions of clang --version and llvm-config --version equal?
	CLANGVER = $(shell $(CC) --version \| sed -E -ne '/^.version\ ([0-9]\.[0-9]\.[0-9])./s//\1/p')


	ifeq "$(shell echo '\#include <sys/ipc.h>@\#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' \| $(CC) -x c - -o .test2 2>/dev/null && echo 1 \|\| echo 0 )" "1"
	SHMAT_OK=1
	else
	SHMAT_OK=0
	CFLAGS+=-DUSEMMAP=1
	LDFLAGS += -lrt
	endif

	ifeq "$(TEST_MMAP)" "1"
	SHMAT_OK=0
	CFLAGS+=-DUSEMMAP=1
	LDFLAGS += -lrt
	endif

	ifndef AFL_TRACE_PC
	PROGS = ../afl-clang-fast ../afl-llvm-pass.so ../libLLVMInsTrim.so ../afl-llvm-rt.o ../afl-llvm-rt-32.o ../afl-llvm-rt-64.o ../compare-transform-pass.so ../split-compares-pass.so ../split-switches-pass.so
	else
	PROGS = ../afl-clang-fast ../afl-llvm-rt.o ../afl-llvm-rt-32.o ../afl-llvm-rt-64.o ../compare-transform-pass.so ../split-compares-pass.so ../split-switches-pass.so
	endif

	ifneq "$(CLANGVER)" "$(LLVMVER)"
	CC = $(shell llvm-config --bindir)/clang
	CXX = $(shell llvm-config --bindir)/clang++
	endif

	all: test_shm test_deps $(PROGS) afl-clang-fast.8 test_build all_done


	ifeq "$(SHMAT_OK)" "1"

	test_shm:
	@echo "[+] shmat seems to be working."
	@rm -f .test2

	else

	test_shm:
	@echo "[-] shmat seems not to be working, switching to mmap implementation"

	endif


	test_deps:
	ifndef AFL_TRACE_PC
	@echo "[*] Checking for working 'llvm-config'..."
	ifneq "$(LLVM_APPLE)" "1"
	@which $(LLVM_CONFIG) >/dev/null 2>&1 \|\| ( echo "[-] Oops, can't find 'llvm-config'. Install clang or set \$$LLVM_CONFIG or \$$PATH beforehand."; echo " (Sometimes, the binary will be named llvm-config-3.5 or something like that.)"; exit 1 )
	endif
	else
	@echo "[!] Note: using -fsanitize=trace-pc mode (this will fail with older LLVM)."
	endif
	@echo "[*] Checking for working '$(CC)'..."
	@which $(CC) >/dev/null 2>&1 \|\| ( echo "[-] Oops, can't find '$(CC)'. Make sure that it's in your \$$PATH (or set \$$CC and \$$CXX)."; exit 1 )
	@echo "[*] Checking for matching versions of '$(CC)' and '$(LLVM_CONFIG)'"
	ifneq "$(CLANGVER)" "$(LLVMVER)"
	@echo "[!] WARNING: we have llvm-config version $(LLVMVER) and a clang version $(CLANGVER)"
	@echo "[!] Retrying with the clang compiler from llvm: CC=`llvm-config --bindir`/clang"
	else
	@echo "[*] We have llvm-config version $(LLVMVER) with a clang version $(CLANGVER), good."
	endif
	@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-clang-fast: afl-clang-fast.c \| test_deps
	$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
	ln -sf afl-clang-fast ../afl-clang-fast++

	../libLLVMInsTrim.so: LLVMInsTrim.so.cc MarkNodes.cc \| test_deps
	$(CXX) $(CLANG_CFL) -DLLVMInsTrim_EXPORTS -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< MarkNodes.cc -o $@ $(CLANG_LFL)

	../afl-llvm-pass.so: afl-llvm-pass.so.cc \| test_deps
	$(CXX) $(CLANG_CFL) -DLLVMInsTrim_EXPORTS -fno-rtti -fPIC -std=$(LLVM_STDCXX) -shared $< -o $@ $(CLANG_LFL)

	# laf
	../split-switches-pass.so: split-switches-pass.so.cc \| test_deps
	$(CXX) $(CLANG_CFL) -shared $< -o $@ $(CLANG_LFL)
	../compare-transform-pass.so: compare-transform-pass.so.cc \| test_deps
	$(CXX) $(CLANG_CFL) -shared $< -o $@ $(CLANG_LFL)
	../split-compares-pass.so: split-compares-pass.so.cc \| test_deps
	$(CXX) $(CLANG_CFL) -shared $< -o $@ $(CLANG_LFL)
	# /laf

	../afl-llvm-rt.o: afl-llvm-rt.o.c \| test_deps
	$(CC) $(CFLAGS) -fPIC -c $< -o $@

	../afl-llvm-rt-32.o: afl-llvm-rt.o.c \| test_deps
	@printf "[*] Building 32-bit variant of the runtime (-m32)... "
	@$(CC) $(CFLAGS) -m32 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi

	../afl-llvm-rt-64.o: afl-llvm-rt.o.c \| test_deps
	@printf "[*] Building 64-bit variant of the runtime (-m64)... "
	@$(CC) $(CFLAGS) -m64 -fPIC -c $< -o $@ 2>/dev/null; if [ "$$?" = "0" ]; then echo "success!"; else echo "failed (that's fine)"; fi

	test_build: $(PROGS)
	@echo "[*] Testing the CC wrapper and instrumentation output..."
	unset AFL_USE_ASAN AFL_USE_MSAN AFL_INST_RATIO; AFL_QUIET=1 AFL_PATH=. AFL_CC=$(CC) AFL_LLVM_LAF_SPLIT_SWITCHES=1 AFL_LLVM_LAF_TRANSFORM_COMPARES=1 AFL_LLVM_LAF_SPLIT_COMPARES=1 ../afl-clang-fast $(CFLAGS) ../test-instr.c -o test-instr $(LDFLAGS)
	../afl-showmap -m none -q -o .test-instr0 ./test-instr < /dev/null
	echo 1 \| ../afl-showmap -m none -q -o .test-instr1 ./test-instr
	@rm -f test-instr
	@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 post to https://github.com/vanhauser-thc/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-clang-fast' to compile programs."

	.NOTPARALLEL: clean

	vpath % ..
	%.8: %
	@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 >> ../$@
	@echo "afl++ was written by Michal \"lcamtuf\" Zalewski and is maintained by Marc \"van Hauser\" Heuse <mh@mh-sec.de>, Heiko \"hexcoder-\" Eissfeldt <heiko.eissfeldt@hexco.de> and Andrea Fioraldi <andreafioraldi@gmail.com>" >> ../$@
	@echo The homepage of afl++ is: https://github.com/vanhauser-thc/AFLplusplus >> ../$@
	@echo >> ../$@
	@echo .SH LICENSE >> ../$@
	@echo Apache License Version 2.0, January 2004 >> ../$@
	ln -sf afl-clang-fast.8 ../afl-clang-fast++.8

	clean:
	rm -f .o .so ~ a.out core core.[1-9][0-9] .test2 test-instr .test-instr0 .test-instr1
	rm -f $(PROGS) ../afl-clang-fast++ ../afl-clang-fast*.8