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-rw-r--r--utils/aflpp_driver/GNUmakefile12
1 files changed, 6 insertions, 6 deletions
diff --git a/utils/aflpp_driver/GNUmakefile b/utils/aflpp_driver/GNUmakefile
index c1a087d7..ad99b893 100644
--- a/utils/aflpp_driver/GNUmakefile
+++ b/utils/aflpp_driver/GNUmakefile
@@ -7,7 +7,7 @@ ifneq "" "$(LLVM_BINDIR)"
   LLVM_BINDIR := $(LLVM_BINDIR)/
 endif
 
-CFLAGS := -O3 -funroll-loops -g
+CFLAGS := -O3 -funroll-loops -g -fPIC
 
 all:	libAFLDriver.a libAFLQemuDriver.a aflpp_qemu_driver_hook.so
 
@@ -26,17 +26,17 @@ debug:
 	ar ru libAFLDriver.a afl-performance.o aflpp_driver.o
 
 aflpp_qemu_driver.o:	aflpp_qemu_driver.c
-	$(LLVM_BINDIR)clang $(CFLAGS) -O0 -funroll-loops -c aflpp_qemu_driver.c
+	-$(LLVM_BINDIR)clang $(CFLAGS) -O0 -funroll-loops -c aflpp_qemu_driver.c
 
 libAFLQemuDriver.a:	aflpp_qemu_driver.o
-	ar ru libAFLQemuDriver.a aflpp_qemu_driver.o
-	cp -vf libAFLQemuDriver.a ../../
+	-ar ru libAFLQemuDriver.a aflpp_qemu_driver.o
+	-cp -vf libAFLQemuDriver.a ../../
 
 aflpp_qemu_driver_hook.so:	aflpp_qemu_driver_hook.o
-	$(LLVM_BINDIR)clang -shared aflpp_qemu_driver_hook.o -o aflpp_qemu_driver_hook.so
+	-test -e aflpp_qemu_driver_hook.o && $(LLVM_BINDIR)clang -shared aflpp_qemu_driver_hook.o -o aflpp_qemu_driver_hook.so || echo "Note: Optional aflpp_qemu_driver_hook.so not built."
 
 aflpp_qemu_driver_hook.o:	aflpp_qemu_driver_hook.c
-	$(LLVM_BINDIR)clang -fPIC $(CFLAGS) -funroll-loops -c aflpp_qemu_driver_hook.c
+	-test -e ../../qemu_mode/qemuafl/qemuafl/api.h && $(LLVM_BINDIR)clang $(CFLAGS) -funroll-loops -c aflpp_qemu_driver_hook.c || echo "Note: Optional aflpp_qemu_driver_hook.o not built."
 
 test:	debug
 	#clang -S -emit-llvm -D_DEBUG=\"1\" -I../../include -Wl,--allow-multiple-definition -funroll-loops -o aflpp_driver_test.ll aflpp_driver_test.c