Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
39	9	LLVMFuzzerTestOneInput	call site: 00009	butil::IOBufCutter::copy_to
4	4	LLVMFuzzerTestOneInput	call site: 00004	butil::IOBuf::append
2	1	LLVMFuzzerTestOneInput	call site: 00001

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::ParseSofaMessage

[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


             memcmp

[function] [call site] 00024


             MakeParseError

[function] [call site] 00025


             MakeParseError

[function] [call site] 00026


             SofaRawUnpacker::unpack32

[function] [call site] 00027

LOG

[function] [call site] 00028


             MakeParseError

[function] [call site] 00029

LOG

[function] [call site] 00030


             brpc::Span::set_remote_side

[function] [call site] 00031


             MakeParseError

[function] [call site] 00032


             get_length

[function] [call site] 00033


             MakeParseError

[function] [call site] 00034


             butil::IOBufCutter::pop_front

[function] [call site] 00035


               butil::IOBufCutter::load_next_ref

[function] [call site] 00036


             TestRpcPBMessageFactory::Get

[function] [call site] 00037


               butil::get_object<DefaultRpcPBMessages>

[function] [call site] 00038


               butil::get_object<v1::EchoRequest>

[function] [call site] 00039


               butil::get_object<v1::EchoResponse>

[function] [call site] 00040


               auto::clear_message

[function] [call site] 00041


               auto::clear_message

[function] [call site] 00042


             mcpack2pb::InputStream::cutn

[function] [call site] 00043


               memcpy

[function] [call site] 00044


               memcpy

[function] [call site] 00045


               Next

[function] [call site] 00046


             mcpack2pb::InputStream::cutn

[function] [call site] 00047


             MakeMessage

[function] [call site] 00048