bubblesort example in bytecode

makefile

@@ -57,8 +57,8 @@ LFLAGS_DEBUG =
 CFLAGS_RELEASE = -DNDEBUG -O3
 LFLAGS_RELEASE =
 
-CFLAGS_COVERAGE_GCC = 
-LFLAGS_COVERAGE_GCC = --coverage
+CFLAGS_COVERAGE_GCC = -fprofile-arcs -ftest-coverage
+LFLAGS_COVERAGE_GCC = -lgcov
 CFLAGS_COVERAGE_CLANG = -fprofile-instr-generate -fcoverage-mapping
 LFLAGS_COVERAGE_CLANG =
 # NOTE: To support BUILD_MODE=COVERAGE for a new compiler,
@@ -135,4 +135,4 @@ install: $(LIB) $(CLI)
 clean:
 	rm -rf $(OBJDIR)
 	rm  -f $(LIB)
-	rm  -f $(CLI)
+	rm  -f $(CLI)