Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
33	9	LLVMFuzzerTestOneInput	call site: 00009	butil::IOBufCutter::copy_to
4	4	LLVMFuzzerTestOneInput	call site: 00004	butil::IOBuf::append
3	0	EP	call site: 00000	butil::IOBuf::IOBuf

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           butil::IOBuf::IOBuf

[function] [call site] 00001


             reset_block_ref

[function] [call site] 00002


             reset_block_ref

[function] [call site] 00003


           butil::IOBuf::append

[function] [call site] 00004


             butil::IOBuf::append

[function] [call site] 00005


             data

[function] [call site] 00006


             butil::IOBuf::length

[function] [call site] 00007


               butil::IOBuf::_small

[function] [call site] 00008


           brpc::policy::ParseThriftMessage

[function] [call site] 00009


             butil::IOBufCutter::copy_to

[function] [call site] 00010


               memcpy

[function] [call site] 00011


               butil::IOBufCutter::slower_copy_to

[function] [call site] 00012


                 butil::IOBufCutter::load_next_ref

[function] [call site] 00013


                   _pop_front_ref

[function] [call site] 00014


                   _ref_num

[function] [call site] 00015


                   _front_ref

[function] [call site] 00016


                 memcpy

[function] [call site] 00017


                 memcpy

[function] [call site] 00018


                 _ref_num

[function] [call site] 00019


                 _ref_at

[function] [call site] 00020


                 std::min

[function] [call site] 00021


                 memcpy

[function] [call site] 00022


             MakeParseError

[function] [call site] 00023


             ntohl

[function] [call site] 00024


             MakeParseError

[function] [call site] 00025


             ntohl

[function] [call site] 00026


             MakeParseError

[function] [call site] 00027


             get_length

[function] [call site] 00028


             MakeParseError

[function] [call site] 00029


             TestRpcPBMessageFactory::Get

[function] [call site] 00030


               butil::get_object<DefaultRpcPBMessages>

[function] [call site] 00031


               butil::get_object<v1::EchoRequest>

[function] [call site] 00032


               butil::get_object<v1::EchoResponse>

[function] [call site] 00033


               auto::clear_message

[function] [call site] 00034


               auto::clear_message

[function] [call site] 00035


             butil::IOBufCutter::pop_front

[function] [call site] 00036


               butil::IOBufCutter::load_next_ref

[function] [call site] 00037


             mcpack2pb::InputStream::cutn

[function] [call site] 00038


               memcpy

[function] [call site] 00039


               memcpy

[function] [call site] 00040


               Next

[function] [call site] 00041


             MakeMessage

[function] [call site] 00042