mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-23 12:10:06 +00:00
2fdea57d19
Allows several validator options to be passed to the fuzzer, to be used when validation is invoked during fuzzing.
93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
// Copyright (c) 2019 Google LLC
|
|
//
|
|
// 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.
|
|
|
|
#ifndef SOURCE_FUZZ_SHRINKER_H_
|
|
#define SOURCE_FUZZ_SHRINKER_H_
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
|
|
#include "spirv-tools/libspirv.hpp"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
// Shrinks a sequence of transformations that lead to an interesting SPIR-V
|
|
// binary to yield a smaller sequence of transformations that still produce an
|
|
// interesting binary.
|
|
class Shrinker {
|
|
public:
|
|
// Possible statuses that can result from running the shrinker.
|
|
enum ShrinkerResultStatus {
|
|
kComplete,
|
|
kFailedToCreateSpirvToolsInterface,
|
|
kInitialBinaryInvalid,
|
|
kInitialBinaryNotInteresting,
|
|
kReplayFailed,
|
|
kStepLimitReached,
|
|
};
|
|
|
|
// The type for a function that will take a binary, |binary|, and return true
|
|
// if and only if the binary is deemed interesting. (The function also takes
|
|
// an integer argument, |counter|, that will be incremented each time the
|
|
// function is called; this is for debugging purposes).
|
|
//
|
|
// The notion of "interesting" depends on what properties of the binary or
|
|
// tools that process the binary we are trying to maintain during shrinking.
|
|
using InterestingnessFunction = std::function<bool(
|
|
const std::vector<uint32_t>& binary, uint32_t counter)>;
|
|
|
|
// Constructs a shrinker from the given target environment.
|
|
Shrinker(spv_target_env env, uint32_t step_limit, bool validate_during_replay,
|
|
spv_validator_options validator_options);
|
|
|
|
// Disables copy/move constructor/assignment operations.
|
|
Shrinker(const Shrinker&) = delete;
|
|
Shrinker(Shrinker&&) = delete;
|
|
Shrinker& operator=(const Shrinker&) = delete;
|
|
Shrinker& operator=(Shrinker&&) = delete;
|
|
|
|
~Shrinker();
|
|
|
|
// Sets the message consumer to the given |consumer|. The |consumer| will be
|
|
// invoked once for each message communicated from the library.
|
|
void SetMessageConsumer(MessageConsumer consumer);
|
|
|
|
// Requires that when |transformation_sequence_in| is applied to |binary_in|
|
|
// with initial facts |initial_facts|, the resulting binary is interesting
|
|
// according to |interestingness_function|.
|
|
//
|
|
// Produces, via |transformation_sequence_out|, a subsequence of
|
|
// |transformation_sequence_in| that, when applied with initial facts
|
|
// |initial_facts|, produces a binary (captured via |binary_out|) that is
|
|
// also interesting according to |interestingness_function|.
|
|
ShrinkerResultStatus Run(
|
|
const std::vector<uint32_t>& binary_in,
|
|
const protobufs::FactSequence& initial_facts,
|
|
const protobufs::TransformationSequence& transformation_sequence_in,
|
|
const InterestingnessFunction& interestingness_function,
|
|
std::vector<uint32_t>* binary_out,
|
|
protobufs::TransformationSequence* transformation_sequence_out) const;
|
|
|
|
private:
|
|
struct Impl; // Opaque struct for holding internal data.
|
|
std::unique_ptr<Impl> impl_; // Unique pointer to internal data.
|
|
};
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|
|
|
|
#endif // SOURCE_FUZZ_SHRINKER_H_
|