[helper] generated build.sh fixes

- fix permissions to allow execute
- add examples to template

scripts/helper.py

@@ -224,9 +224,11 @@ def generate(generate_args):
   with open(os.path.join(args.library_name, 'Dockerfile'), 'w') as f:
     f.write(templates.DOCKER_TEMPLATE % args.library_name)
 
-  with open(os.path.join(args.library_name, 'build.sh'), 'w') as f:
+  build_sh_path = os.path.join(args.library_name, 'build.sh')
+  with open(build_sh_path, 'w') as f:
     f.write(templates.BUILD_TEMPLATE % args.library_name)
 
+  os.chmod(build_sh_path, 0755)
   return 0
 
 

scripts/templates.py

@@ -84,4 +84,16 @@ BUILD_TEMPLATE = """
 
 cd /src/%s
 
+# build the library.
+# e.g.
+#
+# ./autogen.sh
+# ./configure
+# make clean all
+
+# build your fuzzer(s)
+# e.g.
+# $CXX $CXXFLAGS -std=c++11 -Iinclude \\
+#     /path/to/name_of_fuzzer.cc -o /out/name_of_fuzzer \\
+#     /work/libfuzzer/*.o /path/to/library.a $LDFLAGS
 """