48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
/*
|
|
* Copyright 2021 Code Intelligence GmbH
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstdint>
|
|
|
|
// This file declares variants of the libFuzzer compare, division, switch and
|
|
// gep hooks that accept an additional caller_pc argument that can be used to
|
|
// pass a custom value that is recorded as the caller's instruction pointer
|
|
// ("program counter"). This allows synthetic program counters obtained from
|
|
// Java coverage information to be used with libFuzzer's value profile, with
|
|
// which it records detailed information about the result of compares and
|
|
// associates it with particular coverage locations.
|
|
//
|
|
// Note: Only the lower 9 bits of the caller_pc argument are used by libFuzzer.
|
|
extern "C" {
|
|
void __sanitizer_cov_trace_cmp4_with_pc(void *caller_pc, uint32_t arg1,
|
|
uint32_t arg2);
|
|
void __sanitizer_cov_trace_cmp8_with_pc(void *caller_pc, uint64_t arg1,
|
|
uint64_t arg2);
|
|
|
|
void __sanitizer_cov_trace_switch_with_pc(void *caller_pc, uint64_t val,
|
|
uint64_t *cases);
|
|
|
|
void __sanitizer_cov_trace_div4_with_pc(void *caller_pc, uint32_t val);
|
|
void __sanitizer_cov_trace_div8_with_pc(void *caller_pc, uint64_t val);
|
|
|
|
void __sanitizer_cov_trace_gep_with_pc(void *caller_pc, uintptr_t idx);
|
|
|
|
void __sanitizer_cov_trace_pc_indir_with_pc(void *caller_pc, uintptr_t callee);
|
|
}
|
|
|
|
void CalibrateTrampoline();
|