Fuzz (#1000)

* Integration with oss-fuzz

* Use CFLAGS even for linking

as for fuzzing with asan

* Do not abort on uc_emu_start error

* Redirect fuzz output somewhere else than stdout

* Use uc_open for every fuzz instance

* Avoids timeouts from infinite loops

Limiting the number of instructions

* Moving fuzz to tests directory

tests/fuzz/Makefile

@@ -0,0 +1,22 @@
+CFLAGS += -L ../../ -I ../../include
+
+UNAME_S := $(shell uname -s)
+ifeq ($(UNAME_S), Linux)
+LDFLAGS += -lrt -pthread
+endif
+
+LDFLAGS += -lunicorn
+
+
+ALL_TESTS_SOURCES = $(wildcard fuzz*.c)
+ALL_TESTS = $(ALL_TESTS_SOURCES:%.c=%)
+
+.PHONY: all
+all: ${ALL_TESTS}
+
+.PHONY: clean
+clean:
+	rm -rf ${ALL_TESTS}
+
+fuzz%: fuzz%.c
+	$(CC) $(CFLAGS) $^ onefile.c $(LDFLAGS) -o $@