1// Copyright (c) 2019 Google Inc.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#include <cstdint>
16#include <cstring>  // memcpy
17#include <vector>
18
19#include "source/spirv_target_env.h"
20#include "spirv-tools/libspirv.hpp"
21#include "test/fuzzers/random_generator.h"
22
23extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
24  spv_target_env target_env = SPV_ENV_UNIVERSAL_1_0;
25  if (size > 0) {
26    spvtools::fuzzers::RandomGenerator random_gen(data, size);
27    target_env = random_gen.GetTargetEnv();
28  }
29
30  const spv_context context = spvContextCreate(target_env);
31  if (context == nullptr) {
32    return 0;
33  }
34
35  std::vector<char> contents;
36  contents.resize(size);
37  memcpy(contents.data(), data, size);
38
39  spv_binary binary = nullptr;
40  spv_diagnostic diagnostic = nullptr;
41  spvTextToBinaryWithOptions(context, contents.data(), contents.size(),
42                             SPV_TEXT_TO_BINARY_OPTION_NONE, &binary,
43                             &diagnostic);
44  if (diagnostic) {
45    spvDiagnosticPrint(diagnostic);
46    spvDiagnosticDestroy(diagnostic);
47    diagnostic = nullptr;
48  }
49
50  if (binary) {
51    spvBinaryDestroy(binary);
52    binary = nullptr;
53  }
54
55  spvTextToBinaryWithOptions(context, contents.data(), contents.size(),
56                             SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS,
57                             &binary, &diagnostic);
58  if (diagnostic) {
59    spvDiagnosticPrint(diagnostic);
60    spvDiagnosticDestroy(diagnostic);
61    diagnostic = nullptr;
62  }
63
64  if (binary) {
65    spvBinaryDestroy(binary);
66    binary = nullptr;
67  }
68
69  spvContextDestroy(context);
70
71  return 0;
72}
73